JP2012124521A - Heat exchanger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat exchanger that can efficiently radiate out heat generated in a closed vessel with high heat exchange performance.SOLUTION: Heat exchangers 1, 2 for radiating out heat generated in the closed vessel include: a baseplate 10 delimiting an internal side and an external side of the closed vessel; inner fins 20, 20a raised on an inner side of the baseplate 10; outer fins 30, 30a raised on an outer side of the baseplate 10; and a fan 40 directly fixed to tip portions of the inner fins 20, 20a or outer fins 30, 30a.

Description

  The present invention relates to a heat exchanger.

  An electronic device storage box for storing electronic devices is required to be airtight in order to prevent salt damage and block dust. In addition, an electronic equipment test box for conducting an EMC test of electronic equipment is required to have electromagnetic wave shielding properties. Therefore, in the electronic device storage box and the electronic device test box, the inside is partitioned in a state of being sealed from the outside.

  On the other hand, since the electronic equipment housed inside generates heat, it is necessary to provide a heat exchanger that discharges the heat to the outside in the electronic equipment storage box or the electronic equipment test box. Must have. As a conventional heat exchanger having hermeticity, there is one as shown in Patent Document 1. This heat exchanger is provided with a plurality of fins inside and outside the sealed housing, so that the heat inside is transferred from the inner fins to the outer fins through the housing while providing sealing properties. Heat is released.

JP 2001-267774 A

  However, although the conventional heat exchanger described above stirs the air around the heat exchanger with a fan to enhance the heat dissipation effect, the heat exchange performance is not so high, and there is room for improvement.

  Therefore, the present invention has been devised to solve the above problems, and has a high heat exchange performance and can efficiently release the heat generated inside the sealed container to the outside. It is an issue to provide.

  In order to solve the above-mentioned problem, the invention according to claim 1 is a heat exchanger for releasing heat generated inside a sealed container to the outside, and partitions the inner side and the outer side of the sealed container. A base plate, an inner fin erected on the inner side of the base plate, an outer fin erected on the outer side of the base plate, and a fan directly fixed to the tip of the inner fin. It is a heat exchanger characterized by this.

  According to such a configuration, by providing the inner fin and the outer fin on the inside and outside of the base plate, the hermeticity of the sealed container can be secured, and by directly fixing the fan to the tip of the inner fin, Since the air in contact with the inner fins can be forcibly agitated, the heat exchange performance becomes very high, and the heat generated inside the sealed container can be efficiently released to the outside. Moreover, by directly fixing the fan to the inner fin, the fan installation space can be reduced, and the space inside and outside the sealed container can be effectively used. Furthermore, since the fan is provided in the heat exchanger itself, it is not necessary to provide a separate fan, and the labor for mounting the fan separately can be saved.

  The invention according to claim 2 is characterized in that the inner fin provided with the fan is configured such that a surface area thereof is smaller than a surface area of the outer fin. It is a vessel.

  According to such a configuration, since the air is directly agitated by the fan on the inner fin on the side where the fan is provided, sufficient heat exchange performance can be secured even if the surface area of the fin is reduced. The material used can be reduced, and the space inside and outside the sealed container can be effectively used.

  The invention according to claim 3 is characterized in that the inner fin provided with the fan is configured such that the height thereof is lower than the height of the outer fin. It is a heat exchanger as described in.

  According to such a configuration, since the air is directly agitated by the fan on the inner fin side on which the fan is provided, sufficient heat exchanging performance can be ensured even if the height of the fin is lowered. In addition to reducing the amount of material used, the space inside and outside the sealed container can be effectively used.

  The invention according to claim 4 is configured such that the inner fin provided with the fan has a height equivalent to a thickness of an outer shell material of the sealed container to which the base plate is fixed. It is a heat exchanger of any one of Claim 1 thru | or 3 characterized by the above-mentioned.

  According to such a configuration, the inner fin provided with the fan can be accommodated within the thickness of the outer shell material of the sealed container to which the base plate is fixed, and when the outer shell material is viewed from the fan side. The fins are not exposed, and only the fan can be seen, improving the aesthetics.

  According to a fifth aspect of the present invention, a plurality of the inner fins and the outer fins are provided, and a distance between the plurality of inner fins provided with the fan is greater than a distance between the plurality of outer fins. It is comprised so that it may become small, It is a heat exchanger of any one of Claim 1 thru | or 4 characterized by the above-mentioned.

  According to such a configuration, by reducing the interval between the inner fins on the side where the fan is provided, the height of the fin on the side where the fan is provided can be reduced, and the protruding height of the fan can be reduced. Since it can be made small, the overall dimensional balance can be achieved and the aesthetics can be improved.

  The invention according to claim 6 is a heat exchanger for releasing the heat generated inside the sealed container to the outside, and a base plate that partitions the inner side and the outer side of the sealed container, and the base plate The heat exchanger comprises an inner fin standing upright inside, an outer fin standing upright outside the base plate, and a fan fixed directly to the tip of the outer fin. It is.

  According to such a configuration, by providing the inner fin and the outer fin respectively inside and outside the base plate, it is possible to ensure the sealing performance of the sealed container, and by directly fixing the fan to the tip of the outer fin, Since the air in contact with the outer fins can be forcibly stirred, the heat exchange performance becomes very high, and the heat generated inside the sealed container can be efficiently released to the outside. Further, by directly fixing the fan to the outer fin, the installation space of the fan can be reduced, and the space inside and outside the sealed container can be effectively used. Furthermore, since the fan is provided in the heat exchanger itself, it is not necessary to provide a separate fan, and the labor for mounting the fan separately can be saved.

  The invention according to claim 7 is the heat exchange according to claim 6, wherein the outer fin provided with the fan has a surface area smaller than a surface area of the inner fin. It is a vessel.

  According to such a configuration, since the air is directly agitated by the fan on the side where the fan is provided, sufficient heat exchange performance can be ensured even if the surface area of the fin is reduced. The material used can be reduced, and the space inside and outside the sealed container can be effectively used.

  The invention according to claim 8 is configured such that the height of the outer fin provided with the fan is lower than the height of the inner fin. It is a heat exchanger as described in.

  According to such a configuration, since the air is directly agitated by the fan on the outer fin on the side where the fan is provided, sufficient heat exchange performance can be ensured even if the height of the fin is lowered. In addition to reducing the amount of material used, the space inside and outside the sealed container can be effectively used.

  The invention according to claim 9 is configured such that the outer fin provided with the fan has a height equivalent to a thickness of an outer shell material of the sealed container to which the base plate is fixed. It is a heat exchanger of any one of Claim 6 thru | or 8 characterized by the above-mentioned.

  According to such a configuration, the outer fin provided with the fan can be accommodated within the thickness of the outer shell material of the sealed container to which the base plate is fixed, and when the outer shell material is viewed from the fan side. The fins are not exposed, and only the fan can be seen, improving the aesthetics.

  According to a tenth aspect of the present invention, a plurality of the inner fins and the outer fins are provided, and a distance between the plurality of outer fins provided with the fan is larger than a distance between the plurality of inner fins. It is comprised so that it may become small, It is a heat exchanger of any one of Claim 6 thru | or 9 characterized by the above-mentioned.

  According to such a configuration, by reducing the distance between the outer fins on the side where the fan is provided, the height of the fin on the side where the fan is provided can be reduced, and the protruding height of the fan can be reduced. Since it can be made small, the overall dimensional balance can be achieved and the aesthetics can be improved.

  The invention according to claim 11 is characterized in that the outer fin is configured such that its longitudinal direction is parallel to the longitudinal direction of the inner fin. It is a heat exchanger as described in.

  According to such a structure, heat transfer can be improved.

  The invention according to claim 12 is characterized in that the base plate, the inner fin, and the outer fin are integrally formed of an extruded shape member made of aluminum or aluminum alloy. It is an exchanger.

  According to such a configuration, it is possible to easily manufacture a heat exchanger body having a complicated shape including the base plate, the inner fins, and the outer fins only by cutting the extruded shape member with an appropriate length. In addition, since the extruded shape made of aluminum has high dimensional accuracy and is light in weight, it can be easily handled on site and has excellent durability.

  In the invention according to claim 13, the fan has a substantially square frame when viewed from the front, and the extending direction of the diagonal line of the frame is in the longitudinal direction of the inner fin or the outer fin provided with the fan. It is comprised so that it may follow, It is a heat exchanger of Claim 12 characterized by the above-mentioned.

  According to such a configuration, the corners on both sides of the diagonal line of the substantially square frame when viewed from the front are perpendicular to the longitudinal direction of the inner fin or the outer fin on which the fan is provided, and the width of the fin Even if the fan is fixed to the fin through the corner portion by projecting outward, the fan body rotates at the position where the fin is located. In addition, air can be efficiently stirred.

  The invention according to claim 14 is characterized in that a plurality of the fans are arranged in parallel along a longitudinal direction of the inner fin or the outer fin provided with the fan. It is a heat exchanger given in any 1 paragraph.

  According to such a configuration, the fans are aligned along the longitudinal direction of the inner fin or the outer fin, so that the air can be efficiently stirred and the aesthetics can be improved.

  According to a fifteenth aspect of the present invention, grooves for fixing a fan are formed at both ends of the inner fins in the parallel direction, and a nut is rotatably accommodated in the groove. The heat exchanger according to any one of claims 1 to 5, wherein the fan is fixed to a tip portion of the inner fin by screwing a bolt into the nut.

  The invention according to claim 16 is the heat exchange according to claim 15, wherein the groove is formed continuously along the longitudinal direction of the inner fin and has a rectangular cross section. It is a vessel.

  According to the seventeenth aspect of the present invention, bent portions that are opposed to each other are formed at both ends of the opening portion of the groove, and the nut is locked to the bent portion so as not to be detached from the groove. It is comprised, The heat exchanger of Claim 15 or Claim 16 characterized by the above-mentioned.

  According to an eighteenth aspect of the present invention, grooves for fixing a fan are formed at both ends of the outer fins in the parallel direction, and a nut is non-rotatably accommodated in the groove. The heat exchanger according to any one of claims 6 to 10, wherein a fan is fixed to a tip portion of an outer fin by screwing a bolt into the nut.

  The invention according to claim 19 is the heat exchange according to claim 18, wherein the groove is formed continuously along the longitudinal direction of the outer fin and has a rectangular cross section. It is a vessel.

  According to a twentieth aspect of the present invention, bent portions that are opposed to each other are formed at both ends of the opening portion of the groove, and the nut is locked to the bent portion so as not to be detached from the groove. The heat exchanger according to claim 18 or 19, wherein the heat exchanger is configured.

  ADVANTAGE OF THE INVENTION According to this invention, the heat exchanger performance is high, and the outstanding effect that the heat exchanger which can discharge | release the heat | fever which generate | occur | produces inside the airtight container to the exterior efficiently can be exhibited.

It is sectional drawing which showed the best form for implementing the heat exchanger which concerns on this invention. BRIEF DESCRIPTION OF THE DRAWINGS (a) which showed the best form for implementing the heat exchanger which concerns on this invention is a front view, (b) is a side view, (c) is a rear view. It is the front side perspective view which showed the state which arranged the multiple heat exchanger which concerns on this invention. It is the back side perspective view showing the state where a plurality of heat exchangers concerning the present invention were arranged. It is sectional drawing which showed the state which arranged the multiple heat exchanger which concerns on this invention. It is the perspective view which showed the best form of the electronic device storage box. It is sectional drawing which showed the best form of the electronic device storage box. It is the disassembled perspective view which showed the wall panel of the electronic device storage box. It is the cross-sectional perspective view which showed the connection structure of the wall panels of an electronic device storage box. (A) is sectional drawing which showed the connection structure of the wall panels of an electronic device storage box, (b) is sectional drawing which showed the electroconductive packing before fixation. It is sectional drawing which showed the connection structure of the wall panel and corner pillar of an electronic device storage box. It is the perspective view shown so that the connection structure of the wall panel and roof panel of the indoor side corner part of an electronic device storage box might look up from diagonally downward. It is the perspective view which showed the best form of the electronic device test box. It is horizontal direction sectional drawing which showed the best form of the electronic device test box. It is vertical direction sectional drawing which showed the best form of the electronic device test box. It is vertical direction sectional drawing which showed the best form of the electronic device test box. It is sectional drawing which showed the electromagnetic wave absorber.

  The best mode for carrying out the heat exchanger according to the present invention will be described in detail with reference to the accompanying drawings.

  First, the configuration of the heat exchanger according to the present embodiment will be described.

  As shown in FIG. 1, the heat exchanger 1 emits heat generated inside a sealed container such as an electronic device storage box 100 (see FIG. 6) or an electronic device test box 200 (see FIG. 13) to the outside. A base plate 10 that divides the inner side and the outer side of the sealed container, an inner fin 20 that is erected on the inner side of the base plate 10, and an outer side of the base plate 10. The outer fin 30 and the fan 40 fixed to the inner fin 20 or the tip of the outer fin 30 are provided. In this embodiment, the heat exchanger 1 provided in the electronic device storage box 100 shown in FIG. 6 and the fan 40 is provided in the indoor inner fin 20 will be described as an example.

  As shown in FIG. 2, the base plate 10 has a rectangular plate shape when viewed from the front, and when the electronic device storage box 100 is attached, the inner fin 20 is erected on one surface which becomes the indoor side, Outer fins 30 are erected on the other surface which is the outer side. In the present embodiment, the base plate 10 when attached to the wall panel 120 has a vertically long rectangle, and connecting portions 11a and 11b that engage with each other between adjacent heat exchangers 1 are provided at both ends in the left-right width direction. Each is formed. As shown in FIG. 1, one connecting portion 11 a is constituted by a protrusion formed along the longitudinal direction at one end in the width direction of the base plate 10. The other connecting portion 11b is formed of a groove constituent material formed along the longitudinal direction at one end in the width direction of the base plate 10 so as to cover the protrusion. The connecting portion 11a formed of a protrusion enters and engages with the groove of the connecting portion 11b of the adjacent heat exchanger 1, and connects the adjacent heat exchangers 1 and 1 in the width direction.

  As shown in FIG. 1 and FIG. 2, a plurality of inner fins 20 are erected at right angles to the base plate 10 and extend along the longitudinal direction of the base plate 10 (see FIG. 2). (See (a) and FIG. 3). A plurality of outer fins 30 are erected at right angles to the base plate 10 on the surface opposite to the installation surface of the inner fins 20 of the base plate 10. The outer fins 30 are formed so as to extend along the longitudinal direction of the base plate 10 (see FIG. 2C and FIG. 4), and are parallel to the inner fins 20.

  A plurality of fins, that is, the inner fins 20, 20... On the side where the fan 40 is provided at the front end portion, the interval between the adjacent inner fins 20, 20 is larger than the interval between the adjacent outer fins 30, 30. Is also configured to be small. Further, the inner fin 20 is configured such that its height is lower than the height of the other outer fin 30. That is, by reducing the installation interval of the inner fins 20 on which the fans 40 are provided, the surface area of the fins affecting the heat exchange property is ensured, whereby the height of the inner fins 20 can be reduced, and the mounting height of the fans 40 can be reduced. The height is kept low.

  The fins provided with the fan 40, that is, the inner fins 20, 20,... Are configured such that the total surface area is smaller than the total surface area of the other outer fins 30, 30. By increasing the surface area of the outer fin 30 where the fan 40 is not provided, the balance between heat absorption and heat dissipation is maintained and the heat exchange performance is improved. This is because the inner fin 20 is provided with the fan 40 and the surrounding air is agitated, so that high heat exchange performance can be obtained even if the surface area is small.

  Grooves 21 for fixing the fan 40 are formed on both ends of the inner fin 20 in the parallel direction (outside in the width direction of the base plate 10). The groove 21 is formed continuously along the longitudinal direction of the inner fin 20 and has a rectangular cross section. A rectangular nut 22 (see FIG. 1) is accommodated in the groove 21 so as not to rotate. By screwing a bolt 41 into the nut 22, the fan 40 is fitted to the tip of the inner fin 20. It is designed to be fixed. Bending portions 21a and 21a facing each other are formed on both sides of the opening portion of the groove 21, and a nut 22 is locked to the bending portions 21a and 21a so as not to be detached from the groove 21. ing.

  The base plate 10, the inner fins 20, and the outer fins 30 configured as described above are integrally formed by the extruded shape member 5 made of aluminum or aluminum alloy. In the extruded shape member 5, the longitudinal direction of the base plate 10 is the extrusion direction.

  The fan 40 includes a fan main body 43 (see FIG. 2) having blades 43 a having a known shape, and a frame 44 that accommodates the fan main body 43. The frame 44 has a substantially square shape when viewed from the front, and is provided with a first plate 44a located on the inner fin 20 side and a predetermined distance (equivalent to the depth dimension of the fan main body 43) from the first plate 44a. The second plate 44b and a connecting plate 44c that connects the first plate 44a and the second plate 44b are configured. Each member of the frame 44 is formed of aluminum or an aluminum alloy. The first plate 44 a and the second plate 44 b are parallel to each other and are further arranged to be parallel to the base plate 10. The first plate 44a and the second plate 44b have a substantially square outer shape, and a circular hole 44d (see FIG. 2A) slightly larger than the outer shape of the fan main body 43 is formed at the center. Wind flows through this hole 44d. The connection plate 44c is formed by a plate that intermittently connects the outer peripheral edges of the first plate 44a and the second plate 44b, and wind also flows from the side surface of the fan 40 through the gap between the connection plates 44c and 44c. It is supposed to be.

  The frame 44 is configured such that one of the diagonal lines (a pair of diagonal lines of the first plate 44 a and the second plate 44 b) extends along the longitudinal direction of the inner fin 20 on which the fan 40 is provided. Has been. Thus, the other diagonal line is configured to be along the width direction of the base plate 10. Bolt through holes (not shown) are formed in the first plate 44a and the second plate 44b in the vicinity of the corners at both ends of the diagonal line. The frame 44 is configured and arranged so that the bolt through holes are located at portions corresponding to the grooves 21 formed at both ends of the inner fin 20. The bolts 41 are respectively inserted into the bolt through holes on both sides in the width direction from the indoor side and screwed into the nuts 22 in the respective grooves 21, whereby the fan 40 is fixed to the front end portion of the inner fin 20. At this time, since the rotation area of the fan main body 43 (area surrounded by the outer peripheral part of the blade 43a) is included in the installation part of the inner fin 20, the wind flow generated by the fan 40 is effectively utilized. .

  As shown in FIG. 2A and FIG. 3, a plurality of fans 40 are arranged in parallel along the longitudinal direction of the inner fin 20. The plurality of fans 40 are arranged at equal intervals from each other, and the diagonal lines of the fans along the longitudinal direction of the inner fin 20 are arranged in a straight line. As a result, the fans 40 are aligned and arranged in a straight line, and the aesthetic appearance can be improved.

  Next, the structure of the electronic device storage box 100 (sealed container) provided with the heat exchanger 1 and the connection structure of the electronic device storage box 100 and the heat exchanger 1 will be described. 2 to 4 show the case where one heat exchanger 1 is provided in the height direction of the wall panel 120, but FIG. 6 shows two cases in the height direction of the wall panel 120. The case where the heat exchanger 1 of the state divided | segmented into is provided is shown in figure. These heat exchangers 1 and 1 are different in height but have the same cross-sectional shape.

  As shown in FIG. 6, the electronic device storage box 100 is one in which the entire room is covered with a panel material such as a roof panel 110 and a wall panel 120 in an airtight state. As shown in FIG. 8, the wall panel 120 includes a core material 121, a frame material 122 disposed at the peripheral edge of the core material 121, and a surface material 123 attached to both surfaces of the core material 121 and the frame material 122. And. Further, as shown in FIG. 9, the adjacent wall panels 120, 120 are fitted into the fitting holes 125 formed by a pair of fitting grooves 124 formed so as to face the adjacent frame members 122, 122. The fitting member 126 to be fitted into the fitting hole 125 is inserted, and an airtight state is maintained by interposing a packing 130 for ensuring airtightness between the adjacent surface materials 123, 123. It is fixed.

  As shown in FIG. 8, the wall panel 120 has a rectangular planar shape when viewed from the front, the core material 121 and the surface material 123 are also formed in a rectangular planar shape, and the frame material 122 is assembled in a rectangular shape.

  The core material 121 is comprised from heat insulating materials, such as a rigid polyurethane foam and a polystyrene foam, for example, and improves the heat insulation effect of the electronic device storage box 100 (refer FIG. 6). In addition, the core material 121 is not restricted to the said material, For example, the aluminum plate may be formed by arranging in a honeycomb shape.

  The frame material 122 is made of an extruded shape made of aluminum or an aluminum alloy. The frame material 122 is formed in a cylindrical shape having a hollow portion. Fitting grooves 124 into which fitting members 126 (see FIG. 9) are fitted are formed in the vertical frame members 122a and 122a that are arranged to extend in the vertical direction at both left and right ends of the core material 121, respectively.

  Specifically, as shown in FIG. 9, the fitting groove 124 has a T-shaped cross section, and the T-shaped leg portion opens toward the outer peripheral side of the wall panel 120 (the adjacent wall panel 120 side). Is formed. On both sides of the opening portion of the fitting groove 124, ridges 124a extending outward in the outer peripheral direction of the frame material 122 are formed. This protrusion 124a secures an arrangement space for a lip portion 123a of the surface material 123 described later, and also provides an insertion space for the packing 130 inserted between the wall panels 120, 120 when the wall panels 120, 120 are connected to each other. Play a role to secure. A plurality of rows of grooves 122c extending in the vertical direction are formed at predetermined intervals on the outer surface of the vertical frame member 122a that is in contact with the surface member 123. By providing the groove 122c, an adhesive for attaching the surface material 123 can be inserted into the groove 122c, and the adhesion between the frame material 122 and the surface material 123 can be improved.

  As shown in FIG. 8, the horizontal frame members 122b and 122b arranged to extend in the horizontal direction at the upper and lower ends of the core member 121 are formed in a square pipe shape having a rectangular cross section. In addition, you may make it reinforce by providing a rib in the hollow part of the vertical frame material 122a or the horizontal frame material 122b.

  The vertical frame material 122a protrudes from the upper and lower sides of the core material 121 by a predetermined length and extends from the upper end to the lower end of the wall panel 120. The horizontal frame material 122b has both ends facing each other across the core material 121. It arrange | positions so that it may contact | abut to the back surfaces 122d and 122d of a pair of vertical frame material 122a and 122a, respectively. That is, the horizontal frame members 122b and 122b are sandwiched between the upper and lower portions between the pair of vertical frame members 122a and 122a, respectively. Thus, the fitting groove 124 is formed from the upper end of the wall panel 120 to the entire length of the lower end.

  The surface material 123 is made of a plate material of aluminum or aluminum alloy, and has conductivity. A pair of surface materials 123 are provided so as to cover both the indoor side and the outdoor side surfaces of the core material 121 and the frame material 122 and are integrally formed. The surface material 123 is formed with a lip portion 123a that is bent at a predetermined length on the outer peripheral surface of the frame material 122 at the peripheral portions of the four sides (refer to FIGS. 9 and 10A for details). On the outer surface side surface (surface opposite to the surface in contact with the core material 121) of at least one surface material 123 of the pair of surface materials 123, 123 attached to the indoor side and the outdoor side, the conductive paint 129 is provided. (See FIG. 9) is applied on one side. In the present embodiment, the conductive paint 129 is applied to the outer surface side surface of the indoor surface material 123. The conductive paint 129 is applied to the surface of the lip portion 123a.

  The conductive paint 129 is composed of a conductive agent and a resin binder. Nickel particles, powders such as silver, copper, and carbon are used as the conductive agent, and acrylic, vinyl, epoxy, alkyd, and the like are used as the resin binder. The conductive paint 129 exhibits conductivity when the conductive agents come into contact with each other in the resin binder. Note that the surface of the surface material 123 to which the conductive coating material 129 is not applied is anodized.

  The panel connection part of adjacent wall panels 120 and 120 is as shown in the right part of FIG. 9 and (a) of FIG. In the panel connecting portion, the vertical frame members 122a and 122a of the wall panels 120 and 120 are abutted with each other, and the fitting grooves 124 and 124 face each other to form a fitting hole 125 having an H-shaped cross section. It will be. In the fitting hole 125, an outer peripheral shape equivalent to the inner peripheral shape of the fitting hole 125, that is, a fitting member 126 having an H-shaped section formed by connecting legs having a T-shaped section is fitted and inserted. ing. The fitting hole 125 is formed over the entire length from the upper end to the lower end of the wall panel 120. After the wall panels 120 and 120 are brought into contact with each other, the fitting member 126 is inserted from above the wall panels 120 and 120. The fitting member 126 is made of an extruded shape made of aluminum or aluminum alloy, and is fitted to the fitting hole 125. Thus, by forming the frame member 122 and the fitting member 126 with an extruded shape member made of aluminum or aluminum alloy with high dimensional accuracy, the wall panels 120 and 120 are fixed without rattling. It has become.

  A packing 130 is interposed in the gap between the vertical frame members 122a and 122a of the adjacent wall panels 120 and 120. The packing 130 is provided so as to be in contact with the lip portion 123a of the surface material 123, which is bent on both sides of the fitting groove 124 of the vertical frame material 122a. In the present embodiment, the packing 130 is provided between the lip portions 123a and 123a of the indoor surface materials 123 and 123, that is, between the lip portions 123a and 123a to which the conductive paint 129 is applied.

  As shown in FIG. 10, the packing 130 is a sheet-like member formed thick at both ends in the width direction, and is disposed so as to extend in the vertical direction in the gap between the lip portions 123a and 123a. The packing 130 is configured by covering the surface of a flexible core material 130a with a conductive material 130b having conductivity (see FIG. 10B), and the entire packing has conductivity. Yes. The core member 130a is made of, for example, rubber, resin, or urethane sponge. The conductive material 130b is, for example, a nylon-like cloth-like member plated with nickel, and is bonded around the core material 130a.

  The packing 130 is inserted into the gap between the lip portions 123a and 123a by being pushed by the rubber packing 131 for pushing. The rubber packing 131 is made of an elastic body such as rubber or resin, and a plurality of flanges 131b are formed on both sides of the sheet portion 131a extending in the vertical direction along the gap (see FIG. 10B). ). According to such a configuration, the packing 130 is deformed into a substantially U-shaped cross section, and is pressed against the lip portion 123a of the surface material 123 by the flange 131b. Moreover, if the packing 130 is comprised with rubber | gum, the adhesiveness to the lip | rip part 123a of the surface material 123 will increase with the restoring force of the packing 130. FIG.

  The packing 130 may not be provided between the lip portions 123a and 123a of the surface materials 123 and 123 to which the conductive coating material 129 is not applied (in this embodiment, between the lip portions 123a and 123a on the outdoor side) Only the rubber packing 131 may be inserted (see the upper side of FIG. 10A). According to such a configuration, soundproofing and waterproofing on the outdoor side can be ensured.

  As shown in the left side of FIG. 6 and FIG. 11, corner pillars 140 are provided at the four corners of the wall surface of the electronic device storage box 100. The corner column 140 is made of an extruded shape made of aluminum or aluminum alloy. A fitting groove 141 having the same cross-sectional shape as the fitting groove 124 formed in the wall panel 120 is formed on the connection surface of the corner column 140 with the adjacent wall panel 120. On both sides of the opening portion of the fitting groove 141, a ridge 141a extending toward the adjacent wall panel 120 is formed. The protrusion 141a serves to secure an insertion space for the packing 130 inserted between the corner column 140 and the wall panel 120 when the corner column 140 and the wall panel 120 are connected.

  The connection structure between the adjacent wall panels 120 and the corner pillars 140 is equivalent to the connection structure between the adjacent wall panels 120 and 120. That is, when the wall panel 120 and the corner pillar 140 are brought into contact with each other, the fitting grooves 124 and 141 face each other, and the fitting hole 125 having an H-shaped cross section is formed. A fitting member 126 is fitted and inserted into the fitting hole 125.

  A conductive paint 129 is applied to the surface of the corner column 140 on the indoor side of the fitting groove 141. A conductive packing 130 is interposed in a gap on the indoor side between the adjacent wall panel 120 and the corner column 140. The packing 130 is provided between the lip portion 123a to which the indoor-side conductive paint 129 is applied and the corner column 140. The packing 130 is a push-in rubber packing 131, and is inserted by being pushed in from the indoor side. As a result, the interior surface material 123 of the wall panel 120, the packing 130, and the interior surface of the corner pillar 140 are electrically connected to obtain conductivity.

  The packing 130 does not have to be provided in the outdoor space between the adjacent wall panel 120 and the corner column 140, and only the rubber packing 131 is inserted in order to ensure soundproofing and waterproofing.

  6 and 11, a wall panel 120 a having a door 150 is shown. The door 150 is configured to shield radio waves when closed. As shown in FIG. 11, the door 150 includes a door main body panel 154 and a door frame member 155. A conductive door packing 156 is provided on at least one of the peripheral portion of the door main body panel 154 or the contact portion of the door frame member 155 with the door main body panel 154 (in this embodiment, only the door frame member 155). ing.

  Similarly to the normal wall panel 120, the door main body panel 154 includes a panel-shaped core material 151 provided inside, a frame material 152 disposed on the four peripheral sides of the core material 151, the core material 151, and the frame material. The conductive surface material 153 is attached to both the indoor side and the outdoor side of 152. The materials of the core material 151, the frame material 152, and the conductive surface material 153 are equivalent to the core material 121, the frame material 122, and the surface material 123 of the wall panel 120. A conductive paint 129 is applied to the entire surface of the indoor surface material 153 on the indoor side.

  A door frame member 155 is provided around the door main body panel 154 over the entire circumference. The door frame member 155 is made of an extruded shape member made of aluminum or aluminum alloy. In the vertical door frame member 155a extending in the vertical direction, a fitting groove 155b having the same cross-sectional shape as the fitting groove 124 of the wall panel 120 is formed. On both sides of the opening portion of the fitting groove 155b, ridges 155c extending toward the adjacent corner pillars 140 are formed. The protrusions 155 c serve to secure an insertion space for the packing 130 when the wall panel 120 a having the door main body panel 154 and the corner pillar 140 are connected. In connection with the adjacent corner pillars 140, when the wall panel 120a and the corner pillars 140 are brought into contact with each other, the fitting grooves 155b and 141 face each other to form a fitting hole 125 having an H-shaped cross section. It becomes. A fitting member 126 is fitted and inserted into the fitting hole 125. A vertical door frame member (not shown) opposite to the vertical door frame member 155a on the corner pillar 140 side has the same configuration, and the adjacent wall panel 120 (see FIG. 6) via a fitting member. ).

  A door receiving plate 155 d that receives the door body panel 154 when the door 150 is closed is formed on the inner peripheral surface of the door frame member 155. A conductive door packing 156 is provided on the door receiving plate 155d. The door packing 156 is made of the same material as the packing 130, and is formed by covering the surface of a core material such as rubber having flexibility with a conductive material having conductivity. The door packing 156 is formed in a substantially letter-shaped cross section (substantially L-shaped) and is deformed by being pressed between the door body panel 154 and the door receiving plate 155d. Thus, the door packing 156 can ensure electrical conductivity and airtightness between the door receiving plate 155d and the door main body panel 154 by contacting the door main body panel 154 with an appropriate pressure.

  The door main body panel 154 is supported by the door frame member 155 via a hinge 154e so as to be freely opened and closed. A rubber packing 154f is provided on an inner portion of the hinge 154e between the frame member 152 of the door main body panel 154 and the outer surface of the vertical door frame member 155a of the door frame member 155. The rubber packing 154f is fixed to the frame material 152 of the door body panel 154.

  Although not shown, the horizontal door frame member extending in the horizontal direction is formed in a hollow shape having a substantially rectangular cross section, and a door receiving plate extending to the inner peripheral surface side of the door frame member is formed. Inside the door receiving plate, a door packing similar to the conductive door packing 156 is provided.

  FIG. 12 is a perspective view showing the connecting structure of the wall panel and the roof panel at the corner portion on the indoor side as seen from obliquely below. As shown in FIG. 12, similarly to the wall panel 120, the roof panel 110 also has a panel-shaped core material 111, a frame material 112 disposed on the peripheral edge of the core material 111, and the core material 111 and the frame material 112. And a pair of surface materials 113 attached to both sides of the. The core material 111, the frame material 112, and the surface material 113 are made of the same material as the core material 121, the frame material 122, and the surface material 123 of the wall panel 120, respectively. The frame material 112 has a rectangular cross section. Of the pair of upper and lower surface materials 113, the upper surface material 113a extends outward from a rectangular outer peripheral edge with a predetermined length.

  The roof panel 110 and the wall panel 120 having such a configuration are connected via a connecting member 114. The connecting member 114 is disposed on the upper part of the wall panel 120 and is formed along the horizontal frame member 122b on the upper side of the wall panel 120. The connecting member 114 is made of an extruded shape made of aluminum or aluminum alloy. The connecting member 114 includes a hanging wall portion 114 a that covers the vicinity of the outdoor upper end surface of the wall panel 120, a support plate portion 114 b that supports the lower surface peripheral portion of the roof panel 110, and a peripheral portion of the upper surface material 113 a of the roof panel 110. A contact plate portion 114c that contacts the extended portion 113c, and an extended portion 114d that extends outward from the hanging wall portion 114a. The vertical wall 114a covers the vicinity of the upper end surface on the outdoor side of the wall panel 120, thereby preventing radio waves from entering or leaking from the gap between the connecting member 114 and the wall panel 120, thereby improving radio wave shielding performance. . The support plate portion 114b is formed to extend in the horizontal direction, supports the lower surface peripheral portion of the roof panel 110 from the lower side, and generates radio waves from the gap between the connecting member 114 and the surface material 113b on the lower side of the roof panel 110. Prevents intrusion or leakage and improves radio wave shielding performance. The contact plate portion 114c is in contact with the extended portion 113c of the peripheral portion of the upper surface material 113a by overlapping with a predetermined length, so that radio waves enter or leak from the gap between the connecting member 114 and the surface material 113a. To prevent radio waves and improve the radio wave shielding performance. The contact plate portion 114c extends to a position corresponding to the distal end portion of the extending portion 114d. Between the connecting member 114 and the upper end surface of the wall panel 120, between the support plate portion 114b and the roof panel 110, and between the contact plate portion 114c and the conductive surface material 113a, a long plate-like conductive material is used. The gasket 115 is interposed, and is configured to further improve radio wave shielding performance and ensure airtightness.

  A cover member 116 that covers the indoor upper end surface and the lower surface of the support plate portion 114 b of the connecting member 114 is provided on the indoor upper end surface of the wall panel 120. The cover member 116 is made of an extruded shape made of aluminum or an aluminum alloy, and has an L-shaped cross section. A recess 116a is formed on the contact surface of the cover member 116 with the wall panel 120 and the contact surface with the support plate portion 114b. In this recess 116a, a long plate-like conductive gasket 115 is provided, and the radio wave shielding performance is improved by ensuring the conductivity of the wall panel 120, the cover member 116, and the connecting member 114, and Airtightness is secured.

  In addition, at the corner of the upper corner of the interior corner of the electronic device storage box 100, the upper part of the orthogonal wall panels 120, 120 and the connecting portion of the roof panel 110 are provided with cover members 116, 116 orthogonal to each other. A corner cover member 117 that covers the vicinity of the connecting portion and the vicinity of the upper end of the corner column 140 interposed between the wall panels 120 is provided. The corner cover member 117 has L-shaped cover plate portions 117a (extending in the horizontal direction), 117b (extending in the horizontal direction), 117c extending in three directions of the vertical and orthogonal wall panel extending directions. (Extending in the vertical direction). The corner cover member 117 is made of conductive aluminum or aluminum alloy. The corner cover member 117 is formed by forming cover plate portions 117a, 117b, and 117c with extruded shapes and joining them in three directions. The cover plate portions 117a and 117b extending in the horizontal direction and positioned on the cover member 116 are formed wider than the cover member 116, and are configured to completely cover the cover member 116. The cover plate portion 117c that extends in the vertical direction and covers the corner column 140 is formed wider than the corner column 140, and is configured to cover the corner column 140 and the side edges of the wall panels 120 on both sides thereof. ing. According to the corner cover member 117 having such a configuration, the upper corners of the wall panels 120 and 120 and the corner pillars 140 completely cover the corners of the corner where gaps are likely to occur at the connecting portions with the roof panel 110. Therefore, the radio wave shielding performance can be greatly enhanced and airtightness can be secured.

  By the way, the heat exchanger 1 is provided in the roof panel 110 and the wall panel 120 of the electronic device storage box 100, as shown in FIG. 6 and FIG. Here, the connection structure between the heat exchanger 1 and the wall panel 120 will be described with reference to FIGS. 1 and 2 to 7. Since the connection structure between the heat exchanger 1 and the roof panel 110 is equivalent to the connection structure between the heat exchanger 1 and the wall panel 120, the connection structure between the heat exchanger 1 and the wall panel 120 will be described. The description of the connection structure between the heat exchanger 1 and the roof panel 110 is omitted.

  As shown in FIGS. 6 and 7, the heat exchanger 1 provided on the wall panel 120 is configured such that the longitudinal directions of the inner fin 20 and the outer fin 30 are along the vertical direction. The plurality of fans 40 are arranged in parallel along the longitudinal direction of the inner fin 20 and the outer fin 30, that is, are arranged at predetermined intervals in the vertical direction. A plurality of heat exchangers 1 are provided on the wall panel 120 and arranged in parallel in the width direction. As described above, the inner fin 20 and the outer fin 30 are configured such that the longitudinal direction thereof is along the vertical direction, so that the inner fin 20 and the outer fin 30 are connected to the wall panel 120 inside and outside the electronic device storage box 100. Since it is juxtaposed along the vertical joints, a sophisticated appearance can be obtained with a sharp impression.

  Moreover, the heat exchanger 1 is divided into two in the height direction of the wall panel 120 and is provided with a predetermined interval (see FIG. 6). A connecting portion between adjacent heat exchangers 1, 1 has a connecting portion 11 a made of a protrusion at the end in the width direction of the base plate 10 of one heat exchanger 1. It enters and engages with the connecting portion 11b made of a groove at the end in the width direction (see FIG. 5).

  As shown in FIGS. 1 and 5, the heat exchanger 1 is arranged such that the inner surface of the base plate 10 abuts against the outer surface of the wall panel 120. The inner fin 20 is formed such that the height dimension thereof is equal to the thickness dimension of the wall panel 120, and the inner fin 20 is accommodated within the thickness of the wall panel 120 so that the inner fin 20 It is configured so as not to protrude. Therefore, only the fan 40 projects into the room from the inner wall surface. The heat exchanger 1 (see FIG. 7) provided on the roof panel 110 (see FIG. 12) is also formed so that the height dimension of the inner fin 20 is equal to the thickness dimension of the roof panel 110. The heat exchanger 1 is configured not to protrude indoors from the ceiling surface.

  A support frame member 160 is provided along the longitudinal direction of the heat exchanger 1 in the wall panels 120 on both sides in the width direction of the heat exchanger 1. The support frame member 160 is formed of an extruded shape member made of aluminum or aluminum alloy, like the frame member 122 (see FIGS. 8 and 9) of the wall panel 120, and is formed in a cylindrical shape having a hollow portion. ing. On the indoor side (inner side) of the end portion of the support frame member 160 on the heat exchanger 1 side, the lip portion 123a of the inner surface member 123 is engaged with the groove frame portion 21b constituting the groove 21 of the inner fin 20. Is formed with a stepped portion 160a. On the other hand, on the outdoor side (external side) of the end portion of the support frame member 160 on the heat exchanger 1 side, a step portion 160b is formed to engage with the lip portion 123a of the outer surface member 123.

  The support frame member 160 has an end opposite to the end on the heat exchanger 1 side positioned at a predetermined length inside the width direction of the end of the base plate 10 of the heat exchanger 1 in the width direction. The heat exchanger packing 161 for ensuring airtightness is interposed between the surface material 123 and the base plate 10 of the heat exchanger 1 on the outer side in the width direction. The heat exchanger packing 161 is made of rubber having flexibility, and is formed in a long bar shape along the longitudinal direction of the heat exchanger 1. At the position on the outdoor side (external side) of the end of the support frame member 160 opposite to the end of the heat exchanger 1, the outer surface material 123 is bent along the end of the reverse side. The concave groove 162 is formed, and the heat exchanger packing 161 is accommodated in the concave groove 162. The heat exchanger packing 161 has a cross-sectional area slightly larger than the cross-sectional area of the concave groove 162, is accommodated in the concave groove 162 in a compressed state, and is pressed against the base plate 10 of the heat exchanger 1. Contact in state. As a result, the heat exchanger packing 161 is in intimate contact between the base plate 10 of the heat exchanger 1 and the surface material 123 of the wall panel 120, and at the connecting portion between the heat exchanger 1 and the wall panel 120, Airtightness with the inner side can be ensured.

  Further, as shown in FIG. 7, the heat exchanger 1 is provided on each of the wall panels 120 and 120 facing each other, and is also provided on the roof panel 110. The heat exchanger 1 provided on the wall panel 120 is provided from the vicinity of the floor to the vicinity of the ceiling, and is configured to sandwich the storage space 170 of the electronic device. The heat exchanger 1 provided on the roof panel 110 is disposed above the storage space 170 of the electronic device. In addition, a circulation fan 171 is provided inside the electronic device storage box 100 to circulate indoor air.

  As shown in FIGS. 6 and 7, on the outside of the wall panel 120 provided with the heat exchanger 1, a wall cover panel 180 that covers the heat exchanger 1 and has outer wall vents 181a and 181b above and below is provided. ing. The wall cover panel 180 is made of an extruded shape made of aluminum or aluminum alloy having a rectangular U-shaped cross section with lip portions 180a at both ends of a rectangular plate, and ends of the lip portions 180a at both ends. Is fixed in contact with the outer surface of the wall panel 120. The lip portion 180a has a height dimension (a distance between the outer surface of the wall panel 120 and the rectangular plate of the wall cover panel 180) that is larger than the height dimension of the outer fin 30 of the heat exchanger 1. An air circulation space is secured inside the cover panel 180. The lower end of the wall cover panel 180 is located at a height spaced from the ground on which the electronic device storage box 100 is installed, and the lower outer wall that connects the inside and outside of the wall cover panel 180 to each other. A vent 181a is formed. The upper end portion of the wall cover panel 180 is located at a height spaced from the eaves of the electronic device storage box 100 by a predetermined distance, and the upper outer wall that connects the inside and outside of the wall cover panel 180 to each other. A vent 181b is formed.

  An outer wall ventilation fan 182 (see FIG. 7) is provided in the outer wall ventilation hole 181b on the upper side of the wall cover panel 180. The outer wall ventilation fan 182 rotates to suck up the air inside the wall cover panel 180 and release it to the outside. Thus, inside the wall cover panel 180, the air warmed by the heat radiation from the outer fins 30 rises, and the air is sucked up so that the inside of the wall cover panel 180 is efficiently ventilated (see FIG. (See 7 thick arrow). The installation position of the outer wall ventilation fan 182 is not limited to the upper outer wall ventilation hole 181b, but may be provided in the lower outer wall ventilation hole 181a, or may be provided in both the upper and lower outer wall ventilation holes 181a and 181b. May be. Furthermore, you may provide in the arbitrary positions inside the wall cover panel 180. FIG.

  On the upper side of the roof panel 110, a roof cover panel 190 that covers the heat exchanger 1 and has at least a pair of roof vents 191 and 191 is provided. The roof cover panel 190 is made of a plate material made of aluminum or aluminum alloy, and is formed in a box shape with an open bottom. The roof cover panel 190 has a rectangular parallelepiped shape, and has a horizontal plate portion 190a and a vertical plate portion 190b on the upper surface. The vertical plate portion 190b is composed of two pairs of plates 190c, 190c,... That are parallel to each other, and has a height dimension that is greater than the height dimension of the outer fin 30 of the heat exchanger 1 (the outer surface of the roof panel 110). And a horizontal plate portion 190 a of the roof cover panel 190), and an air circulation space is secured inside the roof cover panel 190.

  The ventilation holes 191 and 191 on the roof are provided on the plates 190c and 190c arranged in the direction orthogonal to the longitudinal direction of the outer fin 30 of the heat exchanger 1 among the plates 190c and 190c. It has been. The roof vent 191 is configured by an opening 191a formed in the plate 190c, and is provided with a louver 191b. The roof vent 191 is formed to have a width equal to or wider than the width of the heat exchangers 1, 1. Roof ventilation fans 192 and 192 are provided inside the roof ventilation openings 191 and 191, respectively. The roof top ventilation fan 192 is fixed to the inside of the louver 191b. The roof top ventilation fan 192 provided in one roof top ventilation hole 191 sucks outside air into the roof cover panel 190, and the roof top ventilation fan 192 provided in the other roof top ventilation opening 191 is the roof cover panel 190. It rotates to send the air inside. As a result, air in the roof cover panel 190 is efficiently ventilated (see thick arrows in FIG. 7). Note that the roof ventilation fan 192 is not necessarily provided in both of the roof ventilation openings 191 and 191, and may be provided in at least one of the roof ventilation openings 191. Furthermore, you may provide in the arbitrary positions inside the roof cover panel 190. FIG.

  Next, the effect of the heat exchanger 1 and the electronic device storage box 100 having the above-described configuration will be described.

  According to the heat exchanger 1, the inner fin 20 and the outer fin 30 are respectively provided inside and outside the base plate 10, whereby the sealing property of the electronic device storage box 100 (sealed container) can be ensured, and the electronic device is stored. It is possible to prevent salt damage and block dust in the box 100. Further, by directly fixing the fan 40 to the tip of the inner fin 20, the air in contact with the inner fin 20 can be forcibly and directly agitated, so that the heat exchange performance becomes very high, and the electronic device storage box 100 Heat generated inside can be efficiently released to the outside. Furthermore, by directly fixing the fan 40 to the inner fin 20, the installation space of the fan 40 can be reduced, and the space in the electronic device storage box 100 can be effectively used. Further, since the fan 40 is provided in the heat exchanger 1 itself, it is not necessary to provide a separate fan as in the prior art, and it is possible to save the trouble of mounting the fan separately.

  Moreover, in this embodiment, since the base plate 10, the inner fin 20, and the outer fin 30 are integrally formed of an extruded shape made of aluminum or aluminum alloy, a heat exchanger having a complicated shape composed of the above-described parts. The main body can be easily manufactured simply by cutting the extruded profile with an appropriate length. An extruded profile made of aluminum or an aluminum alloy has high dimensional accuracy and is light in weight, so that it can be easily handled on site and has excellent durability. Furthermore, in the electronic device storage box 100 of this embodiment, the surface material 113 of the roof panel 110 and the surface material 113 of the wall panel 120 are also made of aluminum or an aluminum alloy, so that a sense of unity with the heat exchanger 1 is obtained. The beauty can be improved.

  Furthermore, in the present embodiment, the inner fin 20 provided with the fan 40 is configured such that the surface area thereof is smaller than the surface area of the outer fin 30, but the inner fin 20 on the side where the fan 40 is provided is Since the air is directly agitated by the fan 40, sufficient heat exchange performance can be ensured even if the surface area is reduced, and the weight used can be reduced by reducing the material used for the inner fin 20, and the electronic device storage box Effective use of 100 internal spaces can be achieved.

  Moreover, the inner fin 20 provided with the fan 40 can ensure sufficient heat exchanging performance as described above also by being configured such that its height is lower than the height of the outer fin 30. It is possible to reduce the material used for the inner fins 20 to reduce the weight, and to obtain an effect that the internal space of the electronic device storage box 100 can be effectively used.

  Furthermore, in the present embodiment, the interval between the plurality of inner fins 20 provided with the fans 40 is configured to be smaller than the interval between the outer fins 30, but the inner side on the side where the fans 40 are provided. By reducing the distance between the fins 20, the height can be reduced, and the protruding height of the fan 40 can be reduced, so that overall dimension balance can be achieved and the aesthetics of the heat exchanger 1 can be improved. Can do.

  In addition, since the heat exchanger 1 is configured such that the longitudinal direction of the outer fin 30 and the longitudinal direction of the inner fin 20 are parallel to each other, heat is easily transmitted through the base plate 10 and the heat conductivity is improved. In addition, the base plate 10, the inner fins 20, and the outer fins 30 can be integrally formed by the extruded shape, and thus manufacturing can be facilitated.

  Further, the fan 40 has a frame 44 having a substantially square shape when viewed from the front, and the extending direction of the diagonal line of the frame 44 is configured to be along the longitudinal direction of the inner fin 20 on which the fan 40 is provided. The corners on both sides of the diagonal line of the frame 44 where the extending direction is orthogonal to the longitudinal direction of the inner fin 20 are projected to the outside in the width direction of the inner fin 20, and the fan 40 is placed inside through the corners. Even when fixed to the fin 20, the fan main body 43 having the blades 43 a rotates at the portion where the inner fin 20 is located, so that all the air flow generated by the fan 40 is applied to the inner fin 20. be able to. That is, air can be efficiently stirred while the fan 40 is securely fixed.

  Further, since a plurality of fans 40 are arranged side by side along the longitudinal direction of the inner fin 20, the air can be efficiently stirred and the aesthetics can be improved.

  Furthermore, in the electronic device storage box 100 of the present embodiment, since the heat exchanger 1 is provided on the roof panel 110 and the wall panel 120 joined so as to have airtightness, the entire electronic device storage box 100 is hermetically sealed. Can be obtained. As a result, it is possible to obtain the electronic device storage box 100 that is dustproof and that can maintain the inside at a constant temperature, and can store the electronic device that is a precision machine in a preferable environment.

  In particular, as shown in FIG. 7, the heat exchanger 1 is provided on the wall panels 120 and 120 and the roof panel 110 facing each other and is disposed so as to surround the storage space 170. The generated heat can be efficiently released to the outside. In addition, as shown by the thick line arrow in FIG. 7, since the air in the electronic device storage box 100 is circulated by the circulation fan 171, the electronic device storage box 100 does not become locally hot, and the electronic device is stored. A wide range of possible locations can be secured.

  Furthermore, by providing the wall cover panel 180 having the outer wall vents 181a, 181b on the wall panel 120 provided with the heat exchanger 1, an air flow can be formed inside the wall cover panel 180, Heat can be efficiently radiated from the outer fins 30 of the heat exchanger 1 to the outside. In particular, by providing the outer wall ventilation fan 182 in the outer wall ventilation port 181b on the upper side of the wall cover panel 180, the air inside the wall cover panel 180 is forcibly sucked and discharged to the outside. The heat dissipation efficiency from the outer fin 30 is further improved.

  Further, by providing the roof cover panel 190 having a pair of on-roof vents 191 and 191 on the upper side of the roof panel 110, an air flow can be formed inside the roof cover panel 190, and the heat exchanger It is possible to efficiently dissipate heat from one outer fin 30 to the outside. In particular, by providing the roof ventilation fan 192 in the roof ventilation hole 191 of the roof cover panel 190, the air inside the roof cover panel 190 is forced to circulate. The heat dissipation efficiency is further improved.

  In addition, since the electronic device storage box 100 has radio wave shielding properties and the heat exchanger 1 is also made of aluminum or aluminum alloy, the electronic device storage box 100 as a whole has radio wave shielding performance. ing. Therefore, it is possible to perform a performance test such as an EMC test of an electronic device with high accuracy inside.

  In addition, in the said embodiment, although the heat exchanger 1 is provided in both the roof panel 110 and the wall panel 120, it is not restricted to this, The roof panel 110 according to the required heat exchange efficiency. Alternatively, it may be provided on either one of the wall panels 120.

  Next, the structure of the electronic device test box 200 (sealed container) and the heat exchanger 2 provided in the electronic device test box 200 will be described.

  As shown in FIG. 13, the electronic device test box 200 is provided with the heat exchanger 2 according to the present invention, and the test box main body 201 has a radio wave inside a metal casing 210 having radio wave shielding properties. The absorber 230 is laid down. The casing 210 is formed in a rectangular parallelepiped box shape, and one surface of the casing 210 is opened to form an opening 211, and a door 220 that can be opened and closed is provided in the opening 211. The heat exchanger 2 is provided on the wall surface facing the door 220, that is, on the back surface located behind the door 220.

  As shown in FIGS. 13, 14, and 16, a metal finger 223 is provided on the side surface of the standing plate 222 provided on the peripheral portion 221 of the door 220, which is a contact portion between the test box main body 201 and the door 220. And a packing 224 having a radio wave shielding property is attached to the peripheral portion 221 of the door 220.

  The test box body 201 includes an LED lamp 250 (see FIG. 15) provided on the inner surface of the upper wall of the casing 210, and an EMI duct 260 (see FIG. 16) provided on the back side of the casing 210. The heat exchanger 2, the antenna 280 (see FIGS. 14 to 16) provided on the inner surface side of the side wall of the housing 210, and the mounting unit 290 (see FIGS. 14 and 15) to which the electronic device P is fixed It has.

  As shown in FIGS. 14 to 16, the casing 210 is formed in a substantially rectangular parallelepiped box shape having a plurality of metal panels 212 welded to a frame (not shown) as a skeleton and having an opening 211 on the front side. Is formed. Since the casing 210 is formed from a metal panel 212 and a frame (not shown) having conductivity, the casing 210 has a predetermined rigidity, is improved in durability, and is capable of receiving radio waves from the outside. Has shielding properties. Further, since the panel 212 and the frame (not shown) are joined by welding, the sealing property of the casing 210, that is, the shielding property of radio waves is enhanced.

  The panel 212 and the frame (not shown) are made of aluminum or an aluminum alloy. As described above, when the panel 212 or the frame (not shown) is formed of aluminum or an aluminum alloy, desired rigidity can be maintained and the weight of the housing 210 can be reduced. In addition, since aluminum or aluminum alloy has a unique luster, the housing 210 can improve aesthetics. The metal forming the panel 212 and the frame (not shown) is not limited to aluminum or an aluminum alloy, but is a pure metal other than aluminum (for example, steel, copper, etc.) or an alloy other than an aluminum alloy (for example, , Stainless steel, etc.).

  Thus, by forming the casing 210 from aluminum or an aluminum alloy, the casing 210 can be reduced in weight and improved in radio wave shielding, and the appearance of the electronic device test box 200 can be improved. it can.

  The radio wave absorber 230 reflects the radio wave radiated from the electronic device P or the antenna 280 in a pseudo manner without reflecting the radio wave from the inner surface of the casing 210, thereby reflecting the radio wave radiated inside the test box body 201. This is to prevent the radio waves from resonating and is formed so as to cover the inner surface of each panel 212.

  The kind of the radio wave absorber 230 is not particularly limited in the present invention, and known radio wave absorbers can be widely used according to the characteristics of radio waves radiated inside. For example, any of a resistive radio wave absorber, a dielectric radio wave absorber, a magnetic radio wave absorber, and a radio wave absorber combining these can be used. It may be.

  Specifically, for example, (1) a spacer having a thickness of λ / 4 (λ is a wavelength of a radio wave radiated inside the test box) and a surface resistance value in order from the panel 212 side of the casing 210 are free. A resistive film sheet substantially equal to the impedance (376.7Ω) of the space, a λ / 4 type wave absorber provided with a resin protective film, and (2) a resistive film sheet (impedance 1088Ω in order from the panel 212 side of the housing 210) ), A radio wave absorber capable of absorbing two types of radio waves (around 80 MHz and around 2050 MHz) including a spacer (38 mm), a resistance film sheet (impedance 280Ω), a spacer (38 mm), and a protective film (aluminum plate or aluminum foil), (3) Dielectric wave absorbing sheet formed from compounds such as carbon powder and titanium oxide, (4) Is it a compound such as ferrite or carbonyl iron? Magnetic wave absorbing sheet to be formed, (5) Wave absorbing sheet formed from a composite of a resin such as polyurethane and a magnetic material, and (6) Radio wave absorbing material in which a magnetic material and a resistor are bonded together (for example, Lumidion) (Registered Trademark) (Toyo Service Co., Ltd.)) can be used.

  Here, the λ / 4 type wave absorber 230 will be described. The radio wave absorber 230 has a structure based on a well-known method for absorbing radio waves, and artificially absorbs radio waves radiated from an electronic device such as a mobile phone. The radio wave absorber 230 prevents the radio wave radiated from the electronic device from being reflected by the inner surface of the electronic device test box 200 and resonating, and prevents a decrease in test accuracy.

  As shown in FIG. 17, the radio wave absorber 230 is integrally formed in a sheet shape. The radio wave absorber 230 is disposed on the indoor side of the back panel 230a, the spacer 230b provided on the indoor side of the back panel 230a, and disposed on the indoor side. The resistor film sheet 230c having a function of transmitting a quarter of the film and a protective film 230d disposed on the inner side of the resistor film sheet 230c.

  The back panel 230a is made of a conductive material such as aluminum or an aluminum alloy. A removable tape (not shown) is interposed between the back panel 230a and the casing 210, and the radio wave absorber 230 is detachably attached to the casing 210.

  The spacer 230b has a radio wave transmission property, and is used for setting the interval between the resistance film sheet 230c and the back panel 230a to λ / 4, and has a thickness of λ / 4. Here, it is assumed that the wavelength of the radio wave W1 radiated from an electronic device such as a mobile phone (not shown) is λ. The spacer 230b may be formed of any material as long as radio waves can pass through, for example, foamed polystyrene. In the case of forming from foamed polystyrene, the wave absorber 230 can be reduced in weight, and the thickness of the spacer 230b can be easily adjusted.

  The resistance film sheet 230c is a thin sheet that is adjusted so that its surface resistance value is approximately equal to the impedance (376.7Ω) of free space. As such a resistance film sheet 230c, a sheet coated with a carbon conductive material, a sheet formed by adjusting the resistance value of an ITO (Indium Tin Oxide) film, or the like can be used.

  The protective film 230d is formed by being laminated on the indoor side of the resistance film sheet 230c, and protects the surface of the resistance film sheet 230c.

  Here, the operation of the radio wave absorber 230 having the above-described configuration will be described by taking as an example a case where radio waves are incident from the vertical direction of the radio wave absorber 230.

  The radio wave W1 radiated from an electronic device such as a mobile phone passes through the protective film 230d, and then ½ of the radio wave W1 is transmitted through the resistance film sheet 230c and the remaining ½ is reflected. Here, let the transmitted radio wave be radio wave W2, and the reflected radio wave be radio wave W3. After traveling through the spacer 230b, the radio wave W2 is reflected by the back panel 230a having shielding properties, and becomes radio wave W4. Note that the phase of the radio wave is inverted upon reflection. Then, the radio wave W4 reaching the resistance film sheet 230c advances by twice the thickness of the spacer 230b, that is, “λ / 4 × 2 = λ / 2” with respect to the radio wave W3 reflected by the resistance film sheet 230c. Therefore, the phase of the radio wave W3 and the phase of the radio wave W4 are inverted. Accordingly, the radio wave W3 and the radio wave W4 cancel each other, and as a result, the radio wave W1 incident on the resistance film sheet 230c is pseudo-absorbed.

  By providing the radio wave absorber 230 as described above on the inner surface of the casing 210, it is possible to absorb a predetermined radio wave. Therefore, the accuracy of the test of the electronic device can be increased.

  The surface of the radio wave absorber 230 is preferably flat (a flat plate type). According to this, for example, the interior (volume) of the electronic device test box 200 is increased or the electronic device test box 200 is compared with a case where a wave absorber, a mountain shape, a quadrangular pyramid type or the like is provided. The size of the outer shape can be reduced.

  The LED (Light Emitting Diode) lamp 250 is illumination for illuminating the inside of the electronic device test box 200, and is provided on the upper wall of the housing 210 as shown in FIG. Thereby, for example, while testing the electronic device P, the electronic device P can be visually recognized by illuminating the inside of the electronic device test box 200. Unlike the fluorescent lamp, the LED lamp 250 hardly generates noise at the time of blinking. Therefore, the LED lamp 250 can be suitably used as illumination for illuminating the inside of the electronic device test box 200.

  In addition, the installation position, the number, the arrangement, and the like of the LED lamp 250 can be set as appropriate, and are not limited to the configuration shown in FIG. Moreover, the illumination which illuminates the inside of the electronic device test box 200 is not limited to the LED lamp 250, and may be, for example, a halogen lamp or an incandescent lamp.

  An EMI (Electro Magnetic Interference) duct 260 (see FIG. 16) prevents electromagnetic interference and connects a cable (not shown) connected to the electronic device P or the like from the outside of the housing 210. As shown in FIG. 16, the duct is fixed to the back surface of the casing 210 through a gasket 261 having insulation resistance.

  Accordingly, the cable can be wired from the outside of the electronic device test box 200 to the inside through the EMI duct 260, and also acts as a waveguide of the duct (does not propagate a radio wave having a wavelength longer than a predetermined wavelength). Since it is possible to shield the radio wave entering from the cable insertion portion, the radio wave shielding property of the electronic device test box 200 can be suitably maintained. Moreover, electromagnetic interference can be suitably prevented by wiring the cable so that a predetermined length (for example, 100 mm or more) of the cable passes through the inside of the EMI duct 260.

  Note that the cable is covered with a noise absorber (not shown) that absorbs noise that conducts the inside of the cable on the outer peripheral surface of the portion passing through the inside of the EMI duct 260 and the predetermined front and rear portions. Specifically, for example, an EMI tape such as Lumidion (registered trademark) (Toyo Service Co., Ltd.) is wound around a cable with a predetermined length (for example, 300 mm or more). Thereby, since radiation and propagation of noise from the cable can be suppressed, radio waves transmitted and received by the electronic device P can be controlled and measured with high accuracy by a test unit (not shown).

  Such an EMI duct 260 is made of die-casting, and as shown in FIG. 16, a plurality of concave grooves 262 are formed on the cable passing side (the side of the casing 210). By passing the cable through the concave groove 262, it is possible to prevent the cable from moving up and down inside the EMI duct 260 and to align the cables. Further, when a plurality of cables are passed through the EMI duct 260, the space between the cables is filled with the side wall (metal) of the concave groove 262, so that the radio wave shielding property of the electronic device test box 200 is preferably maintained. Can do. Furthermore, since each cable can be wired in parallel, for example, when attaching a ground or the like that uniformly contacts each cable, the attachment becomes easy.

  The antenna 280 is an antenna for transmitting and receiving radio waves to and from the electronic device P. As shown in FIGS. 14 to 16, the antenna waveguide 282 is connected to the connector 281 fixed to the side wall of the casing 210. Is provided. One end of a cable (not shown) is connected to the antenna 280, and this cable (not shown) is pulled out of the electronic device test box 200 via the antenna waveguide 282, and the other end. Is connected to a radio wave transmitting / receiving unit (not shown).

  The radio wave transmission / reception unit (not shown) radiates radio waves to the antenna 280, controls the frequency band and output of the radio waves, and measures radio waves from the electronic device P received by the antenna 280. It has a function.

  The connector 281 is for fixing the antenna waveguide 282 and is provided in a state of being fixed to the side wall of the casing 210. After the connector 281 is loosened and the antenna waveguide 282 is rotated to change the direction of the antenna 280, the connector 281 is tightened and the antenna waveguide 282 is fixed again. Can be changed.

  Thereby, the axis of the antenna 280 can be rotationally adjusted so that the plane of polarization of the radio wave radiated from the antenna 280 and the plane of polarization of the radio wave radiated from the antenna of the electronic device P are parallel or perpendicular. Note that the polarization plane refers to a plane in which the wave of an electric field vibrates in an electromagnetic wave, and an electromagnetic wave having a certain plane is called a linearly polarized wave. A radio wave radiated from a normal antenna is linearly polarized.

  As shown in FIGS. 14 and 16, the connector 281 may be provided with another (preliminary) connector 283 on the left and right (horizontal direction). Thus, the antenna waveguide 282 can be replaced at a desired position, and the antenna 280 can be disposed at the desired position. Note that such connectors 283 may be provided above and below the connector 281 (in the vertical direction), or two or more connectors 283 may be provided above and below the connector 281.

  The antenna waveguide 282 is a metal waveguide formed of, for example, aluminum or an aluminum alloy and bent in a cylindrical shape and an L shape, and has radio wave shielding properties. The antenna waveguide 282 communicates between the outside and the inside of the electronic device test box 200, and a cable (not shown) connected to the antenna 280 is wired in the hollow portion (inside). Yes. A rectangular ground plate 284 is fixed to the tip of the antenna waveguide 282. The cross section of the antenna waveguide 282 is not limited to a circle, and may be a polygon, for example.

  The specifications of the antenna waveguide 282 are set based on the wavelength of the radio wave that does not propagate through the antenna waveguide 282. Specifically, the inner diameter and length of the antenna waveguide 282 are set so that radio waves having a wavelength longer than a predetermined wavelength do not propagate through the inside. Thereby, the radio wave shielding property of the electronic device test box 200 can be suitably maintained.

  In general, when an antenna is installed close to a metal object, eddy currents flow through the metal object, causing radio waves to be re-radiated, etc., and may interfere with the radio wave appropriately radiated to the specimen. . Therefore, as shown in FIG. 16, it is desirable to provide a magnetic sheet 285 on the side wall of the casing 210 near the antenna 280 (the antenna 280 is located between the magnetic sheet 285 and the electronic device P). Become). Thereby, it is possible to reduce the influence of re-radiation of radio waves due to the eddy current as described above.

  The attachment unit 290 is a unit for fixing the electronic device P inside the housing 210. As shown in FIGS. 14 and 15, the mounting unit 290 includes a fixing plate 291 provided so as to cover the entire bottom surface of the housing 210. The holding fixture 292 is detachably fixed on the fixing plate 291 to hold and fix the electronic device P.

  As shown in FIG. 14, the fixing plate 291 is a plate member having a rectangular shape in plan view, and has a plurality of bolt holes 291 a for fixing the holding and fixing jig 292. A plurality of bolt holes 291a are provided in parallel in the left-right direction in the front view of the housing 210 so that the fixing position of the holding fixture 292 can be changed to a desired position. Note that a radio wave absorbing sheet having radio wave absorptivity may be provided on the fixing plate 291, or the fixing plate 291 may be formed of a member having radio wave absorptivity.

  As shown in FIG. 15, the holding and fixing jig 292 is an L-shaped member in side view, and has a bolt hole 292a for screwing the bolt B into the bottom. The holding and fixing jig 292 is fixed to the fixing plate 291 by screwing the bolt B into the bolt hole 291a of the fixing plate 291 through the bolt hole 292a. An attachment plate 293 and a fixture 294 are attached to the holding and fixing jig 292.

  The mounting plate 293 is a long plate material (see FIG. 14) and is fixed to the holding and fixing jig 292. The fixture 294 is a member that holds the electronic device P, and is formed with an insertion portion 294a that inserts and holds the electronic device P. The fixture 294 is detachably attached to the attachment plate 293 so that the attachment direction and attachment position of the electronic device P can be changed as desired.

  The test unit (not shown) is a unit that controls and measures the radio waves transmitted and received by the electronic device P, that is, whether the electronic device P is operating normally by detecting the reception state of the radio waves of the electronic device P. And a unit that can send various instructions to the electronic device P to operate.

  Such a test unit can be connected to the electronic device P to be tested via a cable (not shown). Specifically, one end of the cable is connected to the test unit, and the other end is drawn into the electronic device test box 200 via the EMI duct 260 and connected to the electronic device P. In addition, the other end of the cable is provided with a connector (not shown) for detachably connecting to the electronic device P.

  As shown in FIG. 14, the door 220 is rotatably attached to the side surface of the electronic device test box 200 via a hinge H, and can be opened and closed as appropriate. The door 220 is formed of a metal panel 225, and a window 226 is formed on the right side of the panel 225 when viewed from the front. Further, the above-described radio wave absorber 230 is formed so as to cover the inner surface of the panel 225. In addition, the metal which forms the panel 225 is not specifically limited by this invention, Not only a pure metal (for example, aluminum, steel, copper, etc.) but an alloy (for example, aluminum alloy, stainless steel, etc.) may be sufficient.

  The window 226 includes a rectangular glass plate 227 having transparency to visible light. Accordingly, the inside of the electronic device test box 200 can be visually recognized from the outside through the window 226 (glass plate 227) while the electronic device P is being tested. For example, the electronic device due to reception of radio waves The presence or absence of lighting of the P incoming lamp can be confirmed.

  The glass plate 227 has radio wave reflectivity (blocking property) in order to prevent radio waves from coming and going through the window 226 (glass plate 227). Thereby, the radio wave shielding property of the electronic device test box 200 can be suitably maintained. As such a glass plate 227, for example, a glass plate 227 formed with an ITO (Indium Tin Oxide) film on at least one surface can be used.

  Further, as shown in FIG. 14, the glass plate 227 has a radio wave shielding packing 226c (for example, conductive material) in a concave groove 226b provided around a window opening 226a formed in the door 220. It is fixed via rubber packing or the like. Thereby, since the shielding property of the electromagnetic wave in the peripheral part of the window 226 (glass plate 227) can be ensured, the shielding property of the electronic device test box 200 can be suitably maintained.

  When radio waves radiated from the electronic equipment P, the antenna 280, and the like are directly irradiated on the window 226 (glass plate 227) inside the electronic device test box 200, the radio waves are emitted from the surface of the window 226 (glass plate 227). Since a resonance phenomenon of radio waves occurs due to reflection, the window 226 is desirably provided at a position where radio waves radiated from the electronic device P, the antenna 280, and the like are not irradiated as much as possible.

  Here, the radio wave resonance phenomenon refers to a phenomenon in which when radio waves are radiated from an antenna or the like inside a test box having radio wave shielding properties, the radio waves are repeatedly reflected on the inner wall surface of the test box to cause interference. .

  As shown in FIGS. 14 and 16, the standing plate 222 provided at the peripheral portion 221 of the door 220, which is a contact portion between the test box main body 201 and the door 220, is a metal frame having an L-shaped cross section. The L-shaped one surface is in contact with the inner surface of the door 220 and is fixed by welding or the like. The standing plate 222 is made of, for example, aluminum or aluminum alloy. And the finger 223 is attached to the outer peripheral side surface of the rising part of the standing board 222. On the other hand, a packing 224 having radio wave shielding properties is attached to the outer peripheral portion of the peripheral portion 221 of the door 220 and the standing plate 222.

  The finger 223 is also referred to as a shield finger, a finger strip, or the like. In the present embodiment, a leaf spring formed by curving a portion corresponding to a comb tooth of a strip-shaped metal plate having a substantially comb shape in an arc shape in cross section. It is a member, and is biased in the direction perpendicular to the mounting surface, and has radio wave shielding properties. The metal that forms the finger 223 is not particularly limited in the present invention, and may be an alloy as well as a pure metal. In particular, it is desirable to use a copper alloy. Since the copper alloy mainly composed of copper has high conductivity, it is possible to improve the radio wave shielding property of the finger 223. Further, since the copper alloy has excellent elastic performance, the contact resistance can be reduced. Examples of such copper alloys include beryllium copper alloys.

  The packing 224 is obtained by coating a sponge material having elasticity (cushioning property) with a conductive fabric, and has radio wave shielding properties. The packing 224 is attached to the outer peripheral side of the finger 223 (standing plate 222) provided on the entire circumference of the peripheral edge portion 221 of the door 220. In addition, as a conductive fabric, what plated the fiber with nickel etc. are mentioned. Further, it is desirable that the permanent set rate of the packing is 60% or less.

  According to such a configuration, as shown in FIG. 16, when the door 220 is closed, the finger 223 elastically contacts the opening edge portion 211 a of the test box body 201 and the packing 224 opens the opening of the test box body 201. It elastically contacts the edge 211b. As a result, the gap between the test box main body 201 and the door 220 is reliably closed by the fingers 223 and the packing 224, so that radio waves that are about to enter from the contact portion between the test box main body 201 and the door 220 are not The packing 224 causes diffraction loss and can effectively shield radio waves entering from the contact portion.

  In addition, since the finger 223 is attached to the standing plate 222, the restoring force of the finger 223 that deforms in contact with the test box body 201 when the door 220 is closed is the opening / closing direction of the door 220 (FIG. 16). It is perpendicular to the (left-right direction) (up-down direction in FIG. 16). Thereby, the door 220 can be prevented from opening due to the restoring force of the finger 223, and the door 220 can be fixed in the closed state.

  Further, since the packing 224 is attached to the outer peripheral side of the finger 223, the shielding function by the finger 223 and the shielding function by the packing 224 work synergistically, and from the contact portion between the test box body 201 and the door 220, It is possible to more effectively shield radio waves that are about to enter. Moreover, even if the shielding function of either the finger 223 or the packing 224 is lowered, the sudden shielding function of the electronic device test box 200 can be prevented by the other shielding function.

  The finger 223 may be directly attached to the peripheral edge 221 of the door 220 without using the standing plate 222. The packing 224 may be attached to the opening edge 211a of the test box body 201.

  Furthermore, in this embodiment, although the finger 223 and the packing 224 are attached to the door 220, you may attach to the test box main body 201 side. Further, the finger 223 and the packing 224 may be attached to both the door 220 and the test box main body 201.

  As shown in FIGS. 14 and 16, the heat exchanger 2 attached to the electronic device test box 200 having the above configuration mainly includes a base plate 10, an inner fin 20 a, an outer fin 30 a, and a fan 40. It is configured. As for the heat exchanger 2 which concerns on this embodiment, the fan 40 is attached to the front-end | tip part of the outer side fin 30a. The base plate 10, the inner fin 20a, and the outer fin 30a are integrally formed by an extruded shape member 6 made of aluminum or aluminum alloy. As a result, the heat exchanger 2 can ensure airtightness and also has electrical conductivity, so that radio wave shielding can be ensured. The extruded profile 6 has the same cross-sectional shape as the extruded profile 5 shown in FIG. 1, and the inner fin and the outer fin are reversed. That is, the inner fin 20 in FIG. 1 becomes the outer fin 30a of the extruded shape member 6, and the outer fin 30 in FIG. On both ends, grooves 21 for fixing the fan 40 are formed. The groove 21 has a shape equivalent to that of the extruded shape member 5 of FIG.

  As a result, the outer fins 30a, 30a,. Is also configured to be small. The outer fin 30a is configured such that its height is lower than the height of the other inner fin 20a. That is, by reducing the installation interval of the outer fins 30a on which the fans 40 are provided, the surface area of the fins affecting the heat exchange properties can be ensured, whereby the height of the outer fins 30a can be reduced and the mounting height of the fans 40 It is designed to suppress this.

  The outer fins 30a, 30a... Provided with the fan 40 are configured such that the total surface area thereof is smaller than the total surface area of the other inner fins 20a, 20a. By increasing the surface area of the inner fin 20a not provided with heat sink, the balance between heat absorption and heat dissipation is maintained, and the heat exchange performance is enhanced. This is because the outer fin 30a is provided with the fan 40 so that the surrounding air is agitated, so that high heat exchange performance can be obtained even if the surface area is small.

  The fan 40 has the same configuration as that of the fan 40 shown in FIG.

  As shown in FIGS. 14 and 15, a plurality (three in this embodiment) of the fans 40 are arranged in parallel along the longitudinal direction of the outer fin 30 a. The plurality of fans 40 are arranged at equal intervals, and the diagonal lines of the fans along the longitudinal direction of the outer fins 30a are arranged on a straight line. As a result, the fans 40 are aligned and arranged on a straight line.

  As shown in FIGS. 13 and 14, the heat exchanger 2 is fixed to the wall surface 214 facing the door 220, that is, the back surface of the housing 210. The heat exchanger 2 is attached to the wall surface 214 facing the door 220 sideways so that the longitudinal directions of the inner fins 20a and the outer fins 30a are horizontal. As shown in FIGS. 14 and 16, the heat exchanger 2 fixes the peripheral portion of the base plate 10 from the inside to the peripheral portion of the rectangular heat exchanger opening 215 formed in the panel 212 of the wall surface 214. It is like that.

  According to such a configuration, the heat exchanger 2 is not exposed when viewed from the door side which is the front of the electronic device test box 200 with the door 220 closed, and thus a clean and simple appearance is obtained. The electronic test box 200 having an excellent design can be obtained.

  A radio wave absorber 230 is installed on the indoor side of the periphery of the base plate 10 of the heat exchanger 2 fixed to the casing 210. The radio wave absorber 230 is laid around the periphery of the base plate 10 excluding the inner fin 20a, and the radio wave absorber 230 is arranged so as to surround the inner fin 20a when viewed from the inside. . Here, the height dimension of the inner fin 20 a is larger than the thickness dimension of the radio wave absorber 230, and the tip portion of the inner fin 20 a protrudes inward from the surface of the radio wave absorber 230. It is configured. Thereby, the heat generated from the electronic device P can be absorbed efficiently, and the inside of the electronic device test box 200 can be maintained in a favorable temperature environment.

  A conductive packing 270 is interposed between the peripheral edge of the heat exchanger opening 215 of the panel 212 of the housing 210 and the peripheral edge of the base plate 10 of the heat exchanger 2. The conductive packing 270 is formed in a sheet shape, and is provided over the entire length of the peripheral edge of the base plate 10 of the heat exchanger 2.

  The conductive packing 270 is configured by covering the surface of a flexible core material with a conductive material having conductivity, and the entire packing has conductivity. The core material is made of, for example, rubber, resin, or urethane sponge. The conductive material is, for example, a nylon-like cloth-like conductive fiber plated with nickel, and is adhered to the periphery of the core material.

  By attaching the heat exchanger 2 configured as described above to the electronic device test box 200, the heat exchanger 2 can be hermetically sealed, have high heat exchange performance, and radio wave shielding. In addition, since the conductive packing 270 is interposed between the heat exchanger 2 and the casing 210, radio wave shielding can be obtained even between the heat exchanger 2 and the casing 210. Therefore, radio wave shielding can be obtained in the entire electronic device test box 200. As a result, it is possible to obtain an electronic device test box 200 that has radio wave shielding properties and can maintain the inside at a constant temperature, and the electronic device P, which is a precision machine, can be housed inside to perform a highly accurate test.

  In particular, since the conductive packing 270 is configured by covering a flexible rubber with conductive fibers, the conductive packing 270 has flexibility, and the peripheral portion of the heat exchanger 2 and the casing 210. The peripheral portion of the heat exchanger 2 and the casing 210 can be electrically and reliably connected to each other, and the electronic device test box 200 having a high radio wave shielding property can be provided.

  As mentioned above, although embodiment of the heat exchangers 1 and 2, the electronic device storage box 100, and the electronic device test box 200 was described, the embodiment is not limited to this. About a concrete structure, it can change suitably in the range which does not deviate from the meaning of this invention.

  For example, in the above-described embodiment, the longitudinal directions of the inner fin 20 (20a) and the outer fin 30 (30a) are parallel to each other, but the present invention is not limited to this, and may be configured to be orthogonal to each other. . However, when the longitudinal direction of the inner fin 20 (20a) and the outer fin 30 (30a) is the same, the base plate 10, the inner fin 20 (20a), and the outer fin 30 (30a) are integrally formed by an extruded profile. Since it can be formed, it is preferable because it eliminates manufacturing labor and improves product accuracy.

  Moreover, the dimension and arrangement | positioning space | interval of the inner side fin 20 (20a) and the outer side fin 30 (30a) are not limited to the said embodiment, It can change according to required heat exchange performance and a design. Of course.

  Furthermore, although the heat exchanger packing 161 provided between the heat exchanger 1 and the wall panel 120 or the roof panel 110 in the electronic device storage box 100 is conductive, it may be a storage box that does not require radio wave shielding. For example, it may be flexible even if it does not have conductivity. According to this, airtightness can be ensured. Further, the heat exchanger packing 161 is formed in a rod shape that is inserted into the concave groove 162 of the surface material 123, but is not limited to this. For example, the heat exchanger packing 161 is formed in a sheet shape, You may make it lay between the base board 10 and the surface material 123. FIG.

  In addition, each component of the heat exchangers 1 and 2 is not limited to aluminum or aluminum alloy, and may be applied to other materials such as steel, stainless steel, and copper as long as they have conductivity. it can.

DESCRIPTION OF SYMBOLS 1 Heat exchanger 5 Extrusion profile 10 Base plate 20 Inner fin 30 Outer fin 40 Fan 100 Electronic equipment storage box 110 Roof panel 111 Core material 112 Frame material 113 Surface material 117 Corner cover member 120 Wall panel 121 Core material 122 Frame material 123 Surface material 124 Fitting groove 125 Fitting hole 126 Fitting member 130 Packing 150 Door 154 Door main body panel 155 Door frame member 156 Door packing 180 Wall cover panel 181a Outer wall vent 181b Outer wall vent 182 Outer wall vent fan 190 Roof cover panel 191 Roof vent 192 Roof vent fan 2 Heat exchanger 20a Inner fin 30a Outer fin 200 Electronic device test box 201 Test box body 210 Case 220 Door 230 Wave absorber 270 Conductive packing

Claims (20)

A heat exchanger for releasing heat generated inside the sealed container to the outside,
A base plate that partitions the inner side and the outer side of the sealed container;
An inner fin standing on the inner side of the base plate,
Outer fins erected on the outside of the base plate;
And a fan directly fixed to the tip of the inner fin. The heat exchanger according to claim 1, wherein the inner fin provided with the fan is configured such that a surface area thereof is smaller than a surface area of the outer fin. The heat exchanger according to claim 1 or 2, wherein the inner fin provided with the fan is configured such that a height thereof is lower than a height of the outer fin. The said inner fin provided with the said fan is comprised so that the height may become a dimension equivalent to the thickness of the outer shell material of the said airtight container to which the said base board is fixed. The heat exchanger according to any one of claims 1 to 3. A plurality of the inner fins and the outer fins are provided,
5. The structure according to claim 1, wherein an interval between the plurality of inner fins provided with the fan is configured to be smaller than an interval between the plurality of outer fins. 6. The described heat exchanger. A heat exchanger for releasing heat generated inside the sealed container to the outside,
A base plate that partitions the inner side and the outer side of the sealed container;
An inner fin standing on the inner side of the base plate,
Outer fins erected on the outside of the base plate;
And a fan directly fixed to the tip of the outer fin. The heat exchanger according to claim 6, wherein the outer fin provided with the fan is configured to have a surface area smaller than a surface area of the inner fin. The heat exchanger according to claim 6 or 7, wherein the outer fin provided with the fan is configured so that a height thereof is lower than a height of the inner fin. The said outer fin provided with the said fan is comprised so that the height may become a dimension equivalent to the thickness of the outer shell material of the said airtight container to which the said base board is fixed. The heat exchanger according to any one of claims 6 to 8. A plurality of the inner fins and the outer fins are provided,
10. The structure according to claim 6, wherein an interval between the plurality of outer fins provided with the fans is configured to be smaller than an interval between the plurality of inner fins. The heat exchanger according to item. The heat exchanger according to any one of claims 1 to 10, wherein the outer fin is configured such that a longitudinal direction thereof is parallel to a longitudinal direction of the inner fin. The heat exchanger according to claim 11, wherein the base plate, the inner fin, and the outer fin are integrally formed of an extruded shape member made of aluminum or an aluminum alloy. The fan has a substantially square frame when viewed from the front, and the diagonal direction of the frame extends along the longitudinal direction of the inner fin or the outer fin provided with the fan. The heat exchanger according to claim 12. The heat according to any one of claims 1 to 13, wherein a plurality of the fans are arranged in parallel along a longitudinal direction of the inner fin or the outer fin provided with the fan. Exchanger. Grooves for fixing the fan are respectively formed at both ends of the inner fins in the parallel direction. A nut is non-rotatably accommodated in the groove, and a bolt is screwed into the nut. The heat exchanger according to any one of claims 1 to 5, wherein the fan is fixed to a tip portion of the inner fin. The heat exchanger according to claim 15, wherein the groove is formed continuously along a longitudinal direction of the inner fin and has a rectangular cross-sectional shape. At both ends of the opening portion of the groove, bent portions facing each other are formed,
The heat exchanger according to claim 15 or 16, wherein the nut is locked to the bent portion so as not to be detached from the groove. Grooves for fixing the fan are formed at both ends of the outer fins in the parallel direction, and a nut is non-rotatably accommodated in the groove, and a bolt is screwed into the nut. The heat exchanger according to any one of claims 6 to 10, wherein the fan is fixed to the front end portion of the outer fin. The heat exchanger according to claim 18, wherein the groove is formed continuously along the longitudinal direction of the outer fin and has a rectangular cross section. At both ends of the opening portion of the groove, bent portions facing each other are formed,
The heat exchanger according to claim 18 or 19, wherein the nut is locked to the bent portion so as not to be detached from the groove.

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