JP4460971B2 - Cooling storage - Google Patents

Description

  The present invention relates to a cooling storehouse in which an arrangement structure of a heater for defrosting is improved.

For example, a horizontal refrigerator is known that houses a cooling unit so that it can be taken in and out from the front. More specifically, a machine room is provided on the side of the main body for storing stored items, and a cooler room communicating with the inside of the main body is provided at an upper position in the machine room, while the cooling unit is a base It is formed by stacking and mounting a refrigeration apparatus including a compressor and a condenser on top. In addition, a cooling fan is housed in a case and is integrally attached to the cooler, and for example, a glass tube heater for defrosting is mounted on the lower side of the case. This cooling unit is adapted to be taken in and out of the machine room while housing the cooler side in the cooler room (see, for example, Patent Document 1).
JP-A-10-232082

By the way, in recent years, there has been a type of refrigerator with a cooling unit of this type, in which the cooler side is fixedly provided in the cooler chamber and only the refrigeration apparatus can be taken in and out. On the other hand, for example, the glass tube heater for defrosting may need to be replaced, but the arrangement structure of the conventional glass tube heater is a structure on the premise that the cooler side can also be taken out of the cabinet, It has been difficult to remove and install the glass tube heater in the cooler chamber, and improvements have been eagerly desired.
The present invention has been completed against the background described above.

According to the first aspect of the present invention, a recess is provided in the side wall of the storage chamber, and a cooler chamber is formed by stretching a duct covering the opening side of the recess, and the cooler and the cooling chamber are formed in the cooler chamber. A cooling fan that circulates and supplies cold air generated by heat exchange with the cooler into the storage chamber, and the cooler is equipped with a defrosting heater. While being detachably mounted from the chamber side, brackets having receiving surfaces protruding toward the storage chamber side are provided at both ends on the lower side of the surface of the cooler facing the storage chamber. A holding member that holds the heater is provided, and both ends of the holding member are provided with mounting plates that are stacked on the receiving surface of the bracket, and the holding member is stacked with the mounting plate on the receiving surface of the bracket. And removably attached by fixing the fitting in the state, and a fixed position of the fixture with the said duct is removed is has a configuration which is opened to the storage compartment side It is characterized by its configuration.

The invention of claim 2 is the one described in claim 1, on the wall surface of the front Symbol recess, an insertion hole for inserting the lead wire of the heater is formed through the outside of the cooler compartment, the lead It is characterized in that the line can be connected to the power line outside the cooler chamber.

<Invention of Claim 1>
When the duct is removed from the storage chamber side, the cooler is exposed to the storage chamber side, and the holding member holding the heater is exposed on the surface facing the storage chamber. Subsequently, the holding member is removed from the storage chamber side, and then the heater is removed by taking the holding member into a large space inside the storage chamber and further outside the warehouse. When the heater is provided, the holding member holding the heater is attached to the surface of the cooler facing the storage chamber, and then the duct is attached by the reverse procedure.
That is, even if the cooler is not a drawer type but is fixedly provided in the cooler chamber, the defrosting heater provided in the cooler can be easily removed or attached from the storage chamber side. .

Holding member holding the Heater, the mounting plate, because they are fixed by fitting in a state superimposed on a receiving surface which projects into the storage compartment side of the bracket, the position of the fixture when removing the duct Is easy to understand, and the removal work of the holding member, and hence the removal work of the heater can be performed quickly.
In addition, since the mounting plate of the holding member is received by the receiving surface of the bracket, when attaching or removing the fixture, there is no need to support the holding member by hand, etc. As a result, the attaching / detaching operation of the holding member can be easily performed.
<Invention of Claim 2 >
If the lead wire is disconnected from the power supply line, the holding member holding the heater can be pulled out from the storage chamber to the outside of the chamber while the lead wire is drawn into the cooler chamber through the insertion hole. Removal and attachment to the holding member can be performed more easily. Also, the operation of disconnecting and reconnecting the lead wire to the power supply line can be easily performed using a wide space outside the cooler chamber.

<Embodiment>
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. In this embodiment, a horizontal (table type) refrigerator-freezer is illustrated.
In FIG. 1 thru | or FIG. 3, the code | symbol 10 is a main body of a refrigerator-freezer, Comprising: It is comprised by the horizontally long heat insulation box opened to the front. This heat insulating box has a structure in which an inner box 12 made of synthetic resin such as ABS resin is fitted in an outer box 11 made of stainless steel plate, and a heat insulating material 13 such as foamed resin is filled therebetween.
The main body 10 is supported by legs 14 provided at the four corners of the bottom surface, and the interior thereof is divided into left and right by a heat insulating partition wall 15 to be retrofitted, and the left relatively narrow side is the freezer compartment 16, The right wide side is a refrigerator compartment 17. A swing-type heat insulating door 18 is attached to the front opening of the freezer compartment 16, and a double-spread type heat insulating door 19 is attached to the front opening of the refrigerator compartment 17.

A machine room 20 is provided on the left side as viewed from the front of the main body 10. The machine room 20 is formed in a box shape with an open front surface.
As will be described in detail later, a heat-insulating cooler chamber 21 communicating with the freezer chamber 16 is formed overhanging in the upper portion of the machine chamber 20, and a cooling unit 30 is accommodated in the lower portion thereof so that it can be taken in and out. A storage space 22 is provided. The cooler chamber 21 is equipped with a cooler 23 and a cooling fan 24 as will be described later.
Further, another cooler chamber 26 is formed on the surface of the partition wall 15 on the side of the refrigerator compartment 17 by extending a refrigerator-side duct 25. The cooler chamber 26 is also equipped with a cooler 23A and a cooling fan 24A.
The cooling unit 30 includes a compressor 31, a condenser 32 with a fan, and the like, is mounted on a base 33, and is placed and stored on the bottom plate 35 of the storage space 22 of the machine room 20. The cooling unit 30 is used in common, and a refrigeration circuit is individually configured between each of the above-described coolers 23 and 23A, and an electromagnetic on-off valve is interposed.

Next, the structure of the cooler chamber 21 on the freezer compartment 16 side will be described in detail. As shown in FIG. 4, the left side wall 16 </ b> A of the freezer compartment 16 is formed with a recess that opens into the freezer compartment 16 at the upper side and a position close to the rear side. 40 is formed.
In addition, on the front surface of the left side wall 16A of the freezer compartment 16, a synthetic resin freezer side duct 42 (hereinafter simply referred to as a duct 42) covers the surface of the recess 40 that opens into the freezer compartment 16 and below it. The left side wall 16 </ b> A is stretched at a predetermined interval, and the cooler chamber 21 described above is formed in the recess 40. As shown in FIGS. 3 and 4, the duct 42 has a plurality of mounting portions 43 provided at the periphery thereof fixed to the left and right side edges of the opening of the recess 40 and the lower end side of the left side wall 16 </ b> A with screws 44. As a result, it is detachably mounted from the freezer compartment 16 side.

At the upper position on the back side (the side opposite to the freezer compartment 16) in the cooler chamber 21, the cooler 23 is equipped by being slung from the ceiling surface in an oblique posture in which the upper side is tilted to the back side. . The duct 42 has a suction port 45 formed at the lower end surface and a lower position on the front surface, and an air outlet 46 formed on the upper end side of the front surface. The cooling fan 24 described above is attached to the back surface of the air outlet 46 in a posture oriented obliquely upward.
On the back surface of the duct 42, two upper and lower reinforcing plates 47 project from a position below the cooling fan 24, and a metal plate abutment plate 48 is fitted between the projecting ends of both the reinforcing plates 47. It is applied to the lower side of the front surface of the cooler 23 (the surface facing the freezer compartment 16). Thereby, the reinforcement for resisting when a pressing force acts on the center part of the duct 42 is made.

  A drain pan 50 is placed on the bottom surface of the cooler chamber 21. This drain pan 50 is made of a stainless steel plate, and as shown in FIG. 7, the drain pan 50 is formed in a shallow dish shape that is placed over almost the entire bottom surface of the cooler chamber 21. It is formed so that it gradually becomes deeper toward the side, and in the left and right width directions, the central strip 51 is deepest, and both sides thereof are inclined downward toward the strip 51. A drain port 52 is opened at the rear end of the belt-shaped portion 51, and a drain pipe 53 is suspended from the drain port 52. The drain pipe 53 passes through the bottom wall of the cooler chamber 21 and protrudes into the storage space 22, and a drain hose (not shown) is connected to the drain pipe 53 and led to a predetermined drainage location.

  The cooler 23 is equipped with a glass tube heater 60 for defrosting. As shown in FIG. 8, the glass tube heater 60 has a structure in which a heating wire 62 is passed through a glass tube 61 made of heat-resistant glass, and caps 63 are attached to both ends of the glass tube 61. A pair of protrusions 64 are formed on the outer circumferences of both caps 63, and lead wires 65 are drawn from the end face side of each cap 63.

  On the other hand, a holding member 70 for the glass tube heater 60 is provided. The holding member 70 is made of a metal plate, and in addition to holding the glass tube heater 60, the holding member 70 is intended to cover the upper portion and prevent the defrost water from dripping onto the glass tube 61. Therefore, as shown in FIG. 8, a cover plate 71 having a length almost equal to the entire length of the glass tube heater 60 is provided. As shown in FIG. 4, the cover plate 71 is formed to have a downward slope toward the back side of the cooler chamber 21.

A front plate 72 is formed in a hanging shape in a region slightly shorter than the total length of the glass tube heater 60 at the center in the length direction at the front edge of the cover plate 71, and the holding plates 73A and 73B are formed from both ends thereof. Is bent at right angles toward the freezer compartment 16 side (front side in FIG. 8). In other words, the holding plates 73A and 73B are provided to face each other with an interval slightly shorter than the entire length of the glass tube heater 60. Each holding plate 73A, 73B has a holding hole 74A, 74B through which the cap 63 of the glass tube heater 60 is passed almost tightly. In both the holding holes 74A and 74B, a relief groove 75 through which the lead wire 65 is passed is formed in the rear edge. In addition, a pair of upper and lower relief recesses 76 for allowing the protrusion 64 on the outer periphery of the cap 63 to escape is formed in the holding hole 74A on the near side in the depth direction.
Further, the central portion of the front plate 72 in the length direction is cut off at the lower side and only the upper side is left, and the remaining portion has a length region comparable to the glass tube 61 of the glass tube heater 60. A laterally long window hole 78 is formed, and a guide plate 79 is formed by cutting and raising from the lower edge of the window hole 78 toward the outside obliquely upward.

The glass tube heater 60 is held in advance with respect to the holding member 70 described above. For this purpose, for example, from the state of FIG. 8, the glass tube heater 60 is rotated 90 degrees around the axis, and the lead wire 65 drawn from the cap 63 at the front end is released from the holding plate 73A on the front side. The cap 63 is passed through the holding hole 74A of the holding plate 73A from the inside while the glass tube heater 60 is slightly inclined and the protrusion 64 of the cap 63 is aligned with the upper and lower relief recesses 76. Pull it toward you. In the meantime, the glass tube heater 60 is straightened, and the lead wire 65 pulled out from the back cap 63 is passed through the escape groove 75 of the back holding plate 73B, and then the cap 63 is passed through the holding plate 73B. From the inside through the holding hole 74B.
Pushing is stopped when the protrusion 64 of the back cap 63 hits the inner edge of the inner side holding hole 74B. At this time, the protrusion 64 of the cap 63 on the front side escapes and passes through the recess 76 to the front side. When the glass tube heater 60 is subsequently rotated 90 degrees as in the original, as shown in FIG. 5, one protrusion 64 of both caps 63 corresponds to the corresponding holding hole. The glass tube heater 60 is held between the holding plates 73A and 73B in a state of being held between the holding plates 73A and 73B. become.

  The holding member 70 holding the glass tube heater 60 as described above is detachably attached to the lower position of the front surface (the surface facing the freezer compartment 16) of the cooler 23. Therefore, two brackets 85 are attached to the cooler 23. The bracket 85 is formed in a symmetrical shape by pressing a metal plate. Specifically, as shown in FIG. 8, it has a horizontally long fixing plate 86 applied to the lower ends of the left and right end plates 84 as viewed from the front of the cooler 23, and from the front edge of the fixing plate 86. After being bent at right angles to the outside, it is bent at right angles from its lower edge toward the front, so that a receiving plate 87 having an L-shaped cross section as a whole is formed, and the surface protruding toward the front is the receiving surface 88. It has become.

The fixing plate 86 is provided with an insertion hole 91 for a screw 90, and a lower stop plate 92 is applied to the lower edge of the end plate 84 by being bent at a right angle toward the inside. Is formed. The fixing plate 86 has its front edge aligned with the front edge of the end plate 84, and the anti-rotation plate 92 is in contact with the lower edge of the end plate 84. It is applied to a predetermined mounting surface 95 which is the side. A screw hole 96 is cut in the mounting surface 95 corresponding to the insertion hole 91 of the fixing plate 86.
Accordingly, each bracket 85 is fixed by screwing the screw 90 passed through the insertion hole 91 into the screw hole 96 and tightening after the fixing plate 86 is applied to the predetermined mounting surface 95 described above. Yes. The rotation stop plate 92 is applied along the lower edge of the end plate 84 to prevent rotation, and the fixing plate 86 is screwed efficiently.

  When the bracket 85 is attached as described above, the receiving plate 87 of each bracket 85 is arranged outside the end plate 84 in a state of protruding from the front to the near side. Further, since the lower surface of the cooler 23 has an inclined posture with the back side lowered, the receiving surface 88 of the receiving plate 87 has an inclined posture that is inclined upward toward the near side, and this inclination angle. Is set to coincide with that of the cover plate 71 of the holding member 70 described above.

On the receiving surfaces 88 of the receiving plates 87 of both brackets 85, mounting portions 80, which are both ends of the cover plate 71 of the holding member 70, are placed and fixed. Therefore, a screw hole 93 is cut in the receiving surface 88, and an insertion hole 81 for a screw 98 (see FIG. 7) is formed in the attachment portion 80 of the cover plate 71. One insertion hole 81A is a circular hole, and the other insertion hole 81B is a long hole.
The holding member 70 is mounted on the receiving surface 88 of the bracket 85 to which both the mounting portions 80 of the cover plate 71 correspond, and is fixed by being screwed into the screw holes 93 through the screws 98 from above through the insertion holes 81A and 81B. It has come to be.

  As a result, the glass tube heater 60 is disposed substantially below the surface of the cooler 23 on the freezer compartment 16 side, as shown in FIG. Further, the window hole 78 formed in the front plate 72 of the holding member 70 is in a state of being opened slightly on the back side with respect to the axial position of the glass tube heater 60. In addition, a blocking plate 49 for blocking the front side of the glass tube heater 60 from the duct 42 protrudes from the lower edge of the contact plate 48 fitted to the back surface of the duct 42 described above.

As shown in FIG. 2, an insertion hole 100 for the lead wire 65 is formed through the outer surface at an upper position on the back side of the back wall of the cooler chamber 21. Accordingly, the lead wire 65 of the glass tube heater 60 is led to the upper position on the back side in the cooler chamber 21 and then pulled out to the outer surface side of the cooler chamber 21 through the insertion hole 100.
On the other hand, the electrical equipment box 102 is attached to the front surface outside the cooler chamber 21, the power supply line 103 is drawn out from the electrical equipment box 102, and the terminals with the above-described lead wire 65 are connected to each other by the connector 104. Yes.

From the insertion hole 100, the internal thermistor mounted in the cooler chamber 21, the defrosting thermistor mounted in the cooler 23, and the lead wire of the protective thermal fuse are drawn out together. Stuffing is applied. The large insertion hole 105 opened below the insertion hole 100 is for inserting a refrigerant pipe that circulates and connects the cooling unit 30 and the cooler 23.
Further, in the cooler chamber 26 on the refrigerator compartment 17 side, although a detailed description is omitted, an appropriate heater is attached to the lower surface of the cooler 23A for defrosting, and a drain pan is disposed below the heater.

  The present embodiment has the structure as described above, and during the cooling operation, the freezer compartment 16 and the refrigerator compartment 17 detect the internal temperature in the internal thermistor (not shown), respectively, and the internal temperature is individually determined. When the temperature becomes higher than the set temperature, the refrigerant is supplied to the corresponding coolers 23 and 23A and the cooling fans 24 and 24A are driven to cool the interior, while the interior temperature is higher than the set temperature. When the temperature is lowered, the supply of the refrigerant to the coolers 23 and 23A is stopped and the cooling fans 24 and 24A are stopped so that the cooling operation is stopped. By repeating the operation, the interiors of the chambers 16 and 17 are maintained at substantially the set temperature. The

When switching to the defrosting operation, the operation of the cooling unit 30 and the cooling fans 24 and 24A is stopped, and the glass tube heater 60 is energized to generate heat in the cooler chamber 21 on the freezing chamber 16 side. As shown in FIG. 4, the heat generated by the glass tube heater 60 passes through the window hole 78 of the holding member 70 and is guided by the guide plate 79, and is mainly near the end on the freezer compartment 16 side on the lower surface of the cooler 23. Directed to the position of the. Further, the heat toward the freezer compartment 16 is returned to the cooler 23 along the inclination of the blocking plate 49. As a result, the cooler 23 is heated, and the frost attached to the cooler 23 and the like is melted, dripped onto the drain pan 50 as defrost water, and discharged from the drain port 52. The defrosted water that has fallen on the holding member 70 is guided into the drain pan 50 following the inclination of the cover plate 71.
During the defrosting operation, the temperature of the cooler 23 is detected by a defrosting thermistor (not shown) attached to the cooler 23. When the detected temperature reaches a predetermined temperature or more, it is assumed that frosting has disappeared, and the glass tube heater The energization to 60 is stopped, that is, the defrosting operation is stopped, and the cooling operation is restarted after a predetermined draining time.
Also in the refrigerator compartment 17 side, during the defrosting operation, the heater is energized and the cooler 23A is heated to defrost, and the defrosted water is received by the drain pan and then discharged to the outside.

When exchanging the glass tube heater 60 equipped in the cooler 23, it is performed as follows. First, as shown in FIG. 2, the left side plate of the machine room 20 is removed to expose the outer surface of the cooler room 21, and the lead wire 65 of the glass tube heater 60 is connected to the power line 103 at the connection 104 portion. Disconnect from. In addition, the padding that has been packed in the insertion hole 100 is taken out.
On the other hand, the heat insulation door 18 on the freezer compartment 16 side is opened, and as shown in FIG. 9, the screws 44 are loosened and removed with a tool such as a screwdriver at a plurality of locations where the periphery of the duct 42 is stopped from the inside of the freezer compartment 16. 42 is removed from the freezer compartment 16 and then taken out.

At this time, since the cooling fan 24 is attached to the back surface of the duct 42 and removed together, the cooling fan 24 is completely opened to the freezer compartment 16 side from the front of the cooler 23 to the drain pan 50.
Subsequently, the glass tube heater 60 is removed together with the holding member 70. The holding member 70 has mounting portions 80 at both ends placed on the receiving surface 88 of the bracket 85 provided at the lower position on the front surface of the cooler 23. In addition, since the screw 98 is fixed from above, the position where the screw 98 is stopped can be easily confirmed.
On the other hand, as shown in FIG. 10, the screw 98 is opened above the position where the screw 98 is stopped, so that both screws 98 are loosened and removed by a tool such as a screwdriver. At this time, since the holding member 70 is received by the receiving surfaces 88 of both brackets 85, it is not necessary to support the holding member 70 by hand when loosening the screw 98, and the screw 98 can be easily removed. Can be.

Next, as shown by the arrow in FIG. 11, the holding member 70 is pulled into the freezer compartment 16 and removed while sliding the attachment portion 80 of the cover plate 71 on the receiving surface 88 of the bracket 85. Along with this, the separated lead wire 65 is drawn into the cooler chamber 21 through the insertion hole 100, and the holding member 70 is pulled out together with the lead wire 65.
Then, the glass tube heater 60 is removed from the holding member 70. The removal is performed in the reverse procedure of the attachment described above. After the glass tube heater 60 is rotated 90 degrees from the attachment state of FIG. 7, the rear cap 63 is pulled by pulling it toward the front side of FIG. Is pulled out from the holding plate 73B to the front side, and then the glass tube heater 60 is slightly tilted, and then pushed back again to remove the front cap 63 from the holding plate 73A to the back side. The heater 60 is removed from the holding member 70.

When a new glass tube heater 60 is provided, the glass tube heater 60 is held by the holding member 70, and then the mounting portions 80 at both ends of the cover plate 71 are placed on the receiving surfaces 88 of the bracket 85 of the cooler 23, and screws Fix with 98. Since the receiving surface 88 is inclined downward toward the back side, when the holding member 70 is placed, the receiving surface 88 slides on the receiving surface 88 and is automatically positioned. Further, when the screw 98 is tightened, it is not necessary to support the holding member 70 with a hand or the like, and the screw 98 can be easily tightened. Therefore, the holding member 70 is efficiently attached.
Similarly, the lead wire 65 of the glass tube heater 60 is led to the upper part on the back side in the cooler chamber 21 and pulled out from the insertion hole 100 to the outer surface side of the cooler chamber 21, and the power line on the electrical box 102 side. 103. After that, the left side plate of the machine room 20 is attached.
On the other hand, the removed duct 42 covers the front of the cooler chamber 21 again, and is fixed with screws 44 from the freezer compartment 16 side. Thereby, the replacement work of the glass tube heater 60 is completed.

According to this embodiment, the following many advantages can be obtained.
When removing the glass tube heater 60, if the duct 42 is removed from the freezer compartment 16 side, the holding member 70 is exposed at a lower position on the surface of the cooler 23 facing the freezer compartment 16, that is, at a position close to the freezer compartment 16. Then, the holding member 70 is removed from the freezer compartment 16 side, and then the holding member 70 is taken out into a wide space outside the refrigerator, and the glass tube heater 60 is removed from the holding member 70. When the glass tube heater 60 is provided, the holding member 70 holding the glass tube heater 60 is attached to the surface of the cooler 23 facing the freezer compartment 16 and then the duct 42 is attached by the reverse procedure. That is, even if the cooler 23 is not a drawer type and is provided in a fixed manner in the cooler chamber 21, the glass tube heater 60 provided in the cooler 23 can be easily removed from the freezer compartment 16 side or Can be attached.

  More specifically, since the screwing position of the screw 44 for fixing the duct 42 faces the freezer compartment 16 side, the screw 44 can be easily attached and removed from the freezer compartment 16 side having sufficient space. As a result, the duct 42 can be attached and detached efficiently. Further, when the holding member 70 is fixed to the bracket 85 provided in the cooler 23 with the screw 98, the screw 98 is mounted upward at the lower portion near the opening edge of the cooler chamber 21. Therefore, the position of the screw 98 can be known immediately, so that the holding member 70 itself can be removed and attached quickly.

Since the holding member 70 is received by the receiving plate 87 of the bracket 85 provided in the cooler 23 and is fixed by the screw 98, the holding member 70 and thus the structure is simple although the number of parts is small and the structure is simple. The glass tube heater 60 can be firmly attached.
In particular, since the mounting portion 80 provided on the cover plate 71 of the holding member 70 is received by the receiving surface 88 protruding to the freezer compartment 16 side in the bracket 85, when the screw 98 is attached or removed, It is not necessary to support the holding member 70 by hand and the screw 98 can be easily attached and detached. In addition, the attaching and detaching of the holding member 70 can be carried on and removed by sliding the attaching portion 80 on the receiving surface 88 of the bracket 85, so that the attaching and detaching work of the holding member 70 is easy and accurate.
Since the glass tube heater 60 can be assembled together with the holding member 70 in advance in the cooler 23, the initial assembling work can be easily performed using a wide space outside the cabinet. In addition, since the glass tube heater 60 can be equipped with the installation of the cooler 23 in the cooler chamber 21, the lead wire 65 can be easily processed as compared with the case where it is assembled separately.

  In connecting the lead wire 65 of the glass tube heater 60 to the power supply wire 103 drawn from the electrical box 102, the lead wire 65 is drawn out of the cooler chamber 21 through the insertion hole 100 in the back wall of the cooler chamber 21, The power supply line 103 is connected to the outside. Therefore, if the connecting portion of the lead wire 65 with the power supply line 103 is cut off, the holding member 70 holding the glass tube heater 60 can be pulled out to the outside while the lead wire 65 is drawn into the inside through the insertion hole 100. It becomes possible. On the other hand, when the glass tube heater 60 is attached again, the lead wire 65 is pulled out from the insertion hole 100 and connected to the power supply line 103. However, the lead wire 65 can be disconnected or reconnected to the power supply line 103. Since the work can be performed using a large space outside the cooler chamber 21, the work is simplified.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention, and further, within the scope not departing from the gist of the invention other than the following. Various modifications can be made.
(1) As a modification of the structure for attaching the holding member to the bracket, it may be as shown in FIG. That is, while the mounting plate 110 having the screw hole 111 is provided downward from the front end of the receiving surface 88 of the bracket 85, both ends of the hanging plate 112 provided on the front edge of the cover plate 71 on the holding member 70 side. In addition, when the insertion hole 113 of the screw 98 is opened and the mounting portion 80 of the holding member 70 is placed on the receiving surface 88 of the bracket 85, both ends of the hanging plate 112 are screwed to the mounting plate 110 of the bracket 85. Can be stopped by.

(2) The cooling fan may be installed in the cooler chamber as a separate body from the duct.
(3) The lead wire of the glass tube heater may be connected to the power line in the cooler chamber, and such a device is also included in the technical scope of the present invention.
(4) Instead of the glass tube heater, another type of electric heater may be used.
(5) The present invention is not limited to a cooling storehouse in which the refrigeration apparatus is accommodated in a drawer form. In short, a cooler chamber is formed on the side surface of the storage chamber, and a cooler is fixedly provided therein. In general, the present invention can be widely applied to the entire structure in the case where the cooler is equipped with a heater for defrosting.

1 is an external perspective view of a refrigerator-freezer according to an embodiment of the present invention. Perspective view showing structure in machine room Cross section viewed from the front Cross-sectional view showing the structure of the cooler chamber Side view showing the structure of the bottom of the cooler chamber Perspective view of glass tube heater mounting part A perspective view with the holding member removed Disassembled perspective view of glass tube heater mounting part Sectional view showing the installation and removal of the duct Sectional view with duct removed Sectional drawing which shows attachment / detachment operation of a holding member The perspective view which shows the attachment or detachment operation | movement of the holding member which concerns on other embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Main body 16 ... Freezer compartment (storage chamber) 16A ... Left side wall 21 ... Cooler compartment 23 ... Cooler 24 ... Cooling fan 40 ... Recess 42 ... Duct 44 ... Screw 60 ... Glass tube heater (heater) 65 ... Lead wire 70 ... Holding member 71 ... Cover plate 80 ... Mounting portion (mounting plate) 85 ... Bracket 88 ... Receiving surface 98 ... Screw (mounting tool) 100 ... Through hole 102 ... Electrical box 103 ... Power line

Claims (2)

A recess is provided in the side wall of the storage chamber, and a cooler chamber is formed by covering the opening side of the recess and stretching a duct. In the cooler chamber, heat is generated between the cooler and the cooler. A cooling fan that circulates and supplies the cooled air into the storage chamber, and the cooler is equipped with a defrosting heater in the cooling storage,
The duct is detachably mounted from the storage room side,
While both ends of the lower side of the surface of the cooler facing the storage chamber are provided with brackets having receiving surfaces protruding toward the storage chamber,
A holding member that holds the heater is provided, and both ends of the holding member are provided with mounting plates that are stacked on the receiving surface of the bracket,
The holding member is detachably attached by fixing with a fixture in a state where the mounting plate is superimposed on the receiving surface of the bracket,
And the cooling storehouse which becomes the structure by which the fixing position of the said fixture is opened to the said storage chamber side with the said duct being removed . An insertion hole for inserting the lead wire of the heater is formed in the wall surface of the recess so as to penetrate the outside of the cooler chamber, and the lead wire can be connected to a power line outside the cooler chamber. claim 1 Symbol placement of cooling storages, characterized in that it it.

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