JP6124054B2 - Illumination light source and illumination device - Google Patents

Description

  The present invention relates to an illumination light source such as a straight tube lamp and an illumination device including the same.

  Semiconductor light-emitting elements such as light-emitting diodes (LEDs) are expected to serve as light sources for various products because of their small size, high efficiency, and long life. In particular, research and development of lamps using LEDs (LED lamps) are being actively promoted.

  As an LED lamp, a straight tube type LED lamp (straight tube type LED lamp) that replaces a straight tube type fluorescent lamp having electrode coils at both ends, or a light bulb type LED that replaces a light bulb type fluorescent lamp or an incandescent light bulb. There are lamps (bulb-shaped LED lamps) and the like. For example, Patent Document 1 discloses a conventional straight tube LED lamp.

  The LED lamp incorporates one or a plurality of LED modules as a light source. The LED module includes, for example, a substrate and a plurality of LEDs mounted on the substrate.

JP 2009-043447 A

  As an example of the straight tube type LED lamp, for example, there is a structure in which a long cylindrical glass tube is used as an outer casing and a long metal base is disposed in the glass tube. In addition, there is a structure in which a long cylindrical outer casing is configured by combining a semi-cylindrical resin translucent cover and a long metal base.

  In any structure, a plurality of long LED modules are arranged in a row on a long base, and each LED module is fixed to the base by a predetermined method. There are several possible methods for fixing the LED module to the base.

  For example, there is a method of bonding the LED module and the base with an adhesive such as silicone resin. However, when the LED lamp is attached to the lighting device, the LED module is positioned on the lower side (floor side) with respect to the base. For this reason, the adhesive force gradually decreases when only the adhesive is adhered, and the LED module may fall from the base due to its own weight. Furthermore, the fixing method using an adhesive also has a problem that the manufacturing time becomes long because a curing time is required at the time of manufacturing.

  There is also a method of pressing the substrate of the LED module by caulking a part of a metal base. However, when the substrate of the LED module is pressed by caulking, a local load is applied to the substrate at the caulked portion.

  There is also a method of screwing the substrate and base of the LED module. However, if the board and the base are directly screwed, a local load is applied to the board again due to the tightening force of the screws.

  Thus, when a local load is applied to the substrate, there is a problem that the substrate is distorted and the reliability of the LED module is lowered. In particular, when the substrate is a resin material or a ceramic material, if a local load is applied to the substrate, the substrate is likely to be cracked or chipped.

  The present invention has been made in order to solve such a problem, and has a simple configuration and fixes the substrate to the base without applying an excessive load to the substrate on which the light emitting element is mounted. An object of the present invention is to provide an illumination light source and an illumination device that can perform the above-described operation.

  In order to achieve the above object, one aspect of an illumination light source according to the present invention includes a translucent cover, a base covered with the translucent cover, and a mounting surface of the base. A substrate, a light emitting element disposed on the substrate, and a pressing member for pressing the substrate, the pressing member is disposed on the base so as to straddle the substrate, The base has a plastic deformation portion formed by plastic deformation of a part of the base, and the substrate has the pressing member fixed to the base by a pressing force by the plastic deformation portion. And is fixed to the base.

  Further, in one aspect of the illumination light source according to the present invention, the pressing member includes a substrate pressing portion that presses a surface of the substrate in a straddling portion and a fixing portion that is fixed to the base, and the fixing The part may be fixed to the base by a pressing force by the plastic deformation part.

  Further, in one aspect of the illumination light source according to the present invention, a groove portion is formed in the base, and an end portion of the substrate and an end portion of the fixing portion are accommodated side by side in the groove portion. The plastic deformation portion may be formed by plastic deformation of a part of the groove portion.

  Further, in one aspect of the illumination light source according to the present invention, the groove portion protrudes from the side wall portion standing in the vertical direction of the main surface of the mounting surface and in the horizontal direction of the main surface of the mounting surface. The pressing member may be fixed to the base by plastically deforming the protruding portion.

  Also, in one aspect of the illumination light source according to the present invention, the translucent cover and the base are elongated, and the groove is provided along a longitudinal direction of the base, The end portion of the substrate and the end portion of the fixing portion may be slid into the groove portion.

  Also, in one aspect of the illumination light source according to the present invention, the translucent cover is a notched cylindrical member having a main opening in which a part of a long cylinder is notched along the longitudinal direction, and the base In this case, a recess for locking the end of the main opening of the translucent cover may be formed.

  Further, in one aspect of the illumination light source according to the present invention, the substrate pressing portion is provided with a convex portion that contacts the surface of the substrate, and the convex portion is made of resin. Good.

  In the aspect of the illumination light source according to the present invention, the plastic deformation portion may be formed by caulking a part of the base.

  In addition, an aspect of the illumination device according to the present invention includes any one of the above-described illumination light sources.

  Moreover, one aspect of the method for manufacturing an illumination light source according to the present invention includes a step of placing a substrate on which a light emitting element is mounted on a placement surface of a base, and a pressing member so as to straddle at least a part of the substrate. And a step of plastically deforming a part of the base to fix the pressing member to the base.

  Moreover, in one aspect of the method for manufacturing an illumination light source according to the present invention, the base is formed with a groove portion in which an end portion of the substrate and a part of the pressing member are accommodated, and the groove portion is It is comprised by the side wall part standingly arranged in the main surface perpendicular | vertical direction of the said mounting surface, and the protrusion part which protrudes from the said side wall part in the main surface horizontal direction of the said mounting surface, The said plastic deformation of the said protrusion part is carried out. A convex portion is formed in a portion that receives stress, and in the step of fixing the substrate to the base, in order to plastically deform the convex portion, stress from a direction perpendicular to the principal surface of the mounting surface is applied. It is good also as adding to a convex part.

  Further, in one aspect of the method of manufacturing an illumination light source according to the present invention, in the step of fixing the substrate to the base, a part of the base is plastically deformed by caulking part of the base. It may be allowed to.

  According to the present invention, the substrate can be fixed to the base with a simple configuration without applying an excessive load to the substrate on which the light emitting element is mounted.

It is a general-view perspective view of the straight tube | pipe type LED lamp which concerns on embodiment of this invention. It is a disassembled perspective view of the straight tube | pipe type LED lamp which concerns on embodiment of this invention. It is sectional drawing of the straight tube | pipe type LED lamp which concerns on embodiment of this invention. (A) is a perspective view (perspective view when seen from obliquely above) showing the configuration of the pressing member in the straight tube LED lamp according to the embodiment of the present invention, and (b) is the straight tube shape. It is a perspective view (perspective view when it sees from diagonally downward) which shows the structure of the pressing member in an LED lamp. (A) is a principal part expanded sectional view (XY sectional drawing) of the straight tube | pipe type lamp which concerns on embodiment of this invention, (b) is YZ in AA 'of (a). It is sectional drawing. It is a principal part expansion perspective view of the straight tube | pipe type lamp which concerns on embodiment of this invention. It is a perspective view which shows the structure of the 1st nozzle | cap | die in the straight tube | pipe type LED lamp which concerns on embodiment of this invention. It is a perspective view which shows the structure of the 2nd nozzle | cap | die in the straight tube | pipe type LED lamp which concerns on embodiment of this invention. (A) is a top view which shows the relationship between the 2nd nozzle | cap | die and a board | substrate in the straight tube | pipe type LED lamp which concerns on embodiment of this invention, (b) is a cross section in the BB 'line | wire of (a). It is a figure (YZ sectional drawing). It is a perspective view which shows the process of arrange | positioning a board | substrate and a pressing member in a base in the assembly method of the straight tube | pipe type lamp which concerns on embodiment of this invention. It is a perspective view which shows the process when caulking a part of base in the assembly method of the straight tube | pipe lamp which concerns on embodiment of this invention. (A) is sectional drawing which shows the mode before crimping a base in the assembly method of the straight tube | pipe type LED lamp which concerns on embodiment of this invention, (b) is the assembly of the straight tube | pipe type LED lamp. It is sectional drawing which shows the mode after caulking the base in the method. (A) is sectional drawing which shows the mode before crimping a base in the assembling method of the straight tube | pipe type LED lamp which concerns on the modification of this invention, (b) is the assembling method of the straight tube | pipe type LED lamp. It is sectional drawing which shows the mode after caulking the base in FIG. It is a perspective view which shows the process when arrange | positioning a connector wire in the assembling method of the straight tube | pipe lamp which concerns on embodiment of this invention. It is a perspective view which shows the process when combining a base and a translucent cover in the assembling method of the straight tube | pipe type lamp which concerns on embodiment of this invention. It is a general-view perspective view of the illuminating device which concerns on embodiment of this invention. It is sectional drawing which shows the structure of the modification of an LED module.

  DESCRIPTION OF EMBODIMENTS Hereinafter, an illumination light source and an illumination device according to embodiments of the present invention will be described with reference to the drawings. Note that each of the embodiments described below shows a preferred specific example of the present invention. Accordingly, the numerical values, shapes, materials, components, arrangement positions and connection forms of components, steps (steps), order of steps, and the like shown in the following embodiments are merely examples and are intended to limit the present invention. is not. Therefore, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims showing the highest concept of the present invention are described as optional constituent elements.

  Each figure is a schematic diagram and is not necessarily illustrated strictly. Moreover, in each figure, the same code | symbol is attached | subjected to the substantially same structure, The overlapping description is abbreviate | omitted or simplified.

  In the following embodiments, a straight tube LED lamp will be described as an example of an illumination light source. In the present embodiment, the tube axis direction (longitudinal direction) of the straight tube LED lamp is defined as the X axis direction, and one direction (short direction) perpendicular to the X axis is defined as the Y axis direction. The direction orthogonal to the axis is taken as the Z-axis direction.

(Whole structure of the lamp)
First, the whole structure of the straight tube | pipe type LED lamp 1 which concerns on embodiment of this invention is demonstrated using FIG.1 and FIG.2. FIG. 1 is a schematic perspective view of a straight tube LED lamp according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the straight tube LED lamp according to the embodiment of the present invention.

  As shown in FIG.1 and FIG.2, the straight tube | pipe type LED lamp 1 which concerns on this Embodiment has the translucent cover 20 and the elongate shape of the elongate cylindrical outer case (outer case member). It is a split type structure that can be separated from the base 30. That is, by combining the translucent cover 20 and the base 30, a cylindrical outer casing having openings at both ends is configured.

  A first base 60 and a second base 70 are attached to both ends of the outer casing in the longitudinal direction (X-axis direction). In the present embodiment, a one-side power feeding method in which power is fed from one side of only the first base 60 is employed. The straight tube LED lamp 1 is supported by the lighting fixture by mounting the first base 60 and the second base 70 on the socket of the lighting fixture.

  As shown in FIG. 2, the straight tube LED lamp 1 includes an LED module 10, a translucent cover 20, a base 30, a connector wire 40, a pressing member 50, and a first base (power supply base). 60, a second base (non-power supply base) 70, and a lighting circuit (not shown). The straight tube LED lamp 1 is, for example, a 110-type straight tube LED lamp, and the total length of the lamp is about 2367 mm.

  Hereafter, each structural member of the straight tube | pipe type LED lamp 1 is explained in full detail using FIG. 3, referring FIG. FIG. 3 is a cross-sectional view of a straight tube LED lamp according to an embodiment of the present invention.

(LED module)
As shown in FIG. 2, the LED module 10 is a light source of the straight tube LED lamp 1 and is disposed on the base 30 so as to be covered with the translucent cover 20. The LED module 10 placed on the base 30 is fixed to the base 30 by a pressing member 50. A specific fixing method will be described later.

  The LED modules 10 are long, and a plurality of the LED modules 10 are arranged along the longitudinal direction (X-axis direction) of the base 30. In the present embodiment, four LED modules 10 are used and arranged in a straight line so that the short sides are adjacent to each other.

  The LED module 10 according to the present embodiment is a surface mount device (SMD) type light emitting module, and causes the substrate 11, a plurality of LED elements 12 mounted on the substrate 11, and the LED elements 12 to emit light. The electrode terminal 13 which receives the electric power for this, and the metal wiring (not shown) patterned in the predetermined shape for electrically connecting the some LED element 12 are provided. The LED module 10 is placed on the placement surface of the base 30 by placing the substrate 11 on the placement surface of the base 30.

  The substrate 11 is a mounting substrate for mounting the LED element 12. As the substrate 11, a resin substrate based on resin, a metal base substrate based on metal, a ceramic substrate made of ceramic, a glass substrate made of glass, or the like can be used. Examples of the resin substrate include a glass epoxy substrate (CEM-3, FR-4, etc.) made of glass fiber and an epoxy resin, a substrate (FR-1 etc.) made of paper phenol or paper epoxy, or polyimide. A flexible substrate having flexibility can be used. As the metal base substrate, for example, an aluminum alloy substrate, an iron alloy substrate, or a copper alloy substrate having an insulating film formed on the surface can be used. In the present embodiment, a CEM-3 double-sided substrate is used as the substrate 11.

  The substrate 11 is a long substrate. The substrate 11 has a shape in which a part of a rectangular substrate is cut out, and the substrate 11 is provided with a cutout portion 11a (concave portion). That is, the notch 11 a can be formed by notching part of the end of the substrate 11. For example, the notches 11a are provided as a pair so as to recede inward from the opposing long side ends so as to leave the central portion of the short side of the rectangular substrate. As shown in FIG. 2, the substrate 11 in the present embodiment has a shape in which four corners of a long rectangular substrate are cut out.

  As described above, as a result of the presence of the cutout portion 11a in the long rectangular substrate, the portion remaining without being cut out becomes a protrusion portion 11b protruding in the longitudinal direction in the horizontal direction of the main surface of the rectangular substrate. That is, the protrusion 11b is provided so as to extend in the longitudinal direction from a part on the short side of the rectangular substrate.

  In addition, as the board | substrate 11, you may use the rectangular board | substrate with which the notch part 11a is not provided.

  The LED element 12 is an example of a light emitting element, and is mounted on the substrate 11. In the present embodiment, the plurality of LED elements 12 are mounted in a line arranged in a line along the longitudinal direction of the substrate 11.

  Each LED element 12 is a so-called SMD type light emitting element in which an LED chip and a phosphor are packaged. As shown in FIG. 3, each LED element 12 includes a package 12a, an LED chip 12b arranged in the package 12a, and a sealing member 12c for sealing the LED chip 12b. For example, a white LED element that emits white light can be used as the LED element 12.

  The package 12a is a container molded from a white resin or the like, and includes an inverted frustoconical recess (cavity). The inner surface of the recess is an inclined surface, and is configured to reflect light from the LED chip 12b upward.

  The LED chip 12b is mounted on the bottom surface of the recess of the package 12a. The LED chip 12b is a bare chip that emits monochromatic visible light, and is die-bonded to the bottom surface of the recess of the package 12a by a die attach material (die bond material). For example, a blue LED chip that emits blue light when energized can be used as the LED chip 12b.

  The sealing member 12c is a phosphor-containing resin including a phosphor that is a light wavelength converter, and converts the wavelength of light from the LED chip 12b to a predetermined wavelength (color conversion) and seals the LED chip 12b. Thus, the LED chip 12b is protected. The sealing member 12c is filled in the recess of the package 12a, and is sealed up to the opening surface of the recess. As the sealing member 12c, for example, when the LED chip 12b is a blue LED, a phosphor-containing resin in which YAG (yttrium, aluminum, garnet) -based yellow phosphor particles are dispersed in a silicone resin in order to obtain white light. Can be used. As a result, the yellow phosphor particles are excited by the blue light of the blue LED chip to emit yellow light, so that the sealing member 12c generates white light as a combined light of the excited yellow light and the blue light of the blue LED chip. Light is emitted. The sealing member 12c may also contain a light diffusing material such as silica.

  The LED element 12 configured in this way has two external connection terminals, a positive electrode and a negative electrode, and these external connection terminals and wiring formed on the substrate 11 are electrically connected.

  The electrode terminal 13 is an external connection terminal that receives DC power for causing the LED element 12 to emit light from the outside of the LED module 10. The electrode terminal 13 in the present embodiment is configured in a socket type, and includes a resin socket and a conductive portion (pin) for receiving DC power. The conductive portion is electrically connected to metal wiring formed on the substrate 11. When the mounting portion 41 of the connector wire 40 is attached to the electrode terminal 13 (socket), the electrode terminal 13 is supplied with power from the connector wire 40. When the DC power received by the electrode terminal 13 is supplied to the LED element 12, the LED element 12 emits light. The electrode terminal 13 may be a metal electrode patterned in a rectangular shape instead of a resin socket.

  Although not shown, the metal wiring is made of a metal such as copper (Cu) and is patterned on the substrate 11 in a predetermined shape. The metal wiring electrically connects the plurality of LED elements 12 to each other and electrically connects the LED elements 12 and the electrode terminals 13.

  Furthermore, a white resist may be formed on the surface of the substrate 11 in order to improve the light extraction efficiency of the LED module 10. By forming the white resist, the insulation (breakdown voltage) of the substrate 11 can be improved, and the wiring can be prevented from being oxidized.

(Translucent cover)
The translucent cover 20 constitutes a part of the outer surface of the outer casing (lamp casing) and is a long cover member having translucency. The translucent cover 20 is configured to cover the base 30 on which the plurality of LED modules 10 are arranged. That is, the translucent cover 20 protects the LED module 10.

  As shown in FIG. 2, the translucent cover 20 has a cutout having a main opening formed by cutting out a part of a long cylinder along its longitudinal direction (a direction parallel to the tube axis direction of the lamp). It is a cylindrical member.

  Moreover, as shown in FIG. 3, the outline shape of the inner surface and the outer surface of the translucent cover 20 is viewed from the X-axis direction (when the longitudinal direction of the translucent cover 20 is cut along a plane that is a normal line). In a cross-sectional view), a part of a perfect circular ring is cut out. In addition, the outline shape of the inner surface and outer surface of the translucent cover 20 when viewed from the X-axis direction may be a shape in which a part of an ellipse is cut out.

  The opening angle of the main opening of the translucent cover 20 (opening angle of the main opening when the axis of the long cylinder (X axis) is the center) θ is, for example, 270 ° and is 240 ° or more and 300 ° or less. can do. That is, the shape of the translucent cover 20 when viewed from the X-axis direction exceeds a semicircle. Specifically, the translucent cover 20 covers a part of the base 30, and the end portion of the main opening of the translucent cover 20 exists at a position beyond the base 30.

  Further, claw portions 20 a are formed at both ends in the circumferential direction of the translucent cover 20 (end portions of the main opening). The two claw portions 20a are configured such that end portions in the circumferential direction of the translucent cover 20 are bent inward. Each claw portion 20 a is formed continuously from one end portion in the longitudinal direction of the translucent cover 20 to the other end portion.

  Each of the claw portions 20a of the translucent cover 20 is locked to each of the second recesses 32b so as to straddle the first recess 32a. That is, the claw portion 20a jumps over the first recess 32a and is locked to the second recess 32b. By locking the two claw portions 20a in the second recess 32b, the translucent cover 20 is fixed to the base 30 so as to sandwich the base 30.

  Thereby, since the rigidity of the translucent cover 20 can be increased, even if the outer casing is divided into the translucent cover 20 and the base 30, the outer casing can be bent. Can be suppressed.

  The translucent cover 20 configured as described above can be formed using a translucent material, for example, a resin material such as acrylic or polycarbonate, or a glass material.

  In order to diffuse the light from the LED module 10, the translucent cover 20 may have a light diffusion function. For example, a light diffusing sheet or a light diffusing film may be formed on the inner or outer surface of the translucent cover 20. Specifically, a milky white light diffusing film can be formed by attaching a resin or white pigment containing a light diffusing material (fine particles) such as silica or calcium carbonate to the inner or outer surface of the translucent cover 20. it can.

  In addition, by providing a lens structure provided inside or outside the translucent cover 20, or a concave or convex portion formed on the translucent cover 20, the translucent cover 20 has a light diffusion function. You can also have it. For example, a dot pattern can be printed on the inner surface or the outer surface of the translucent cover 20, or a part of the translucent cover 20 can be processed. Or you may shape | mold the translucent cover 20 itself using the resin material etc. in which the light-diffusion material was disperse | distributed.

  As described above, by providing the light transmissive cover 20 with the light diffusing function, the light emitted from the LED module 10 can be diffused when passing through the light transmissive cover 20. In particular, when the LED elements 12 are spaced apart as in the present embodiment, a light crushing feeling (brightness variation) occurs, but by providing the light-transmitting cover 20 with a light diffusion function, Crushing feeling can be suppressed.

(Base)
The base 30 constitutes a part of the outer surface of the outer casing (lamp casing), and is a long support base for supporting the LED module 10. A plurality of LED modules 10 are placed on the base 30.

  The base 30 is also a heat sink (heat radiator) for radiating heat generated in the LED module 10. Since a part of the outer surface of the base 30 is exposed to the outside, the heat conducted from the LED module 10 to the base 30 can be efficiently radiated to the outside. The base 30 is preferably made of a material having high heat conductivity, and can be made of a metal material such as aluminum or a non-metal material such as a resin having high heat conductivity. The base 30 in the present embodiment is a metal base (metal base), and can be an extruded material of aluminum, for example. The base 30 may be a drawing material.

  The base 30 is combined with the translucent cover 20 so as to close the main opening of the translucent cover 20. As shown in FIG. 3, when the base 30 is viewed from the longitudinal direction (X-axis direction) in a state where the base 30 and the translucent cover 20 are integrated, at the tip of the exposed portion of the base 30. A substantially perfect circle is constituted by the contour line along and the contour line along the outer surface of the translucent cover 20. That is, the outer casing constituted by the base 30 and the translucent cover 20 has substantially the same shape as a glass tube (straight tube) of a straight tube fluorescent lamp.

  As shown in FIG. 3, the base 30 includes a mounting portion 31 for mounting the LED module 10 (substrate 11), and an outer portion 32 that is at least partially exposed to the outside (in the atmosphere outside the lamp). And a hollow portion 33 which is a hollow portion and a connecting portion 34.

  The placement unit 31 is configured in a substantially plate shape, and has a placement surface on which the LED module 10 (substrate 11) is placed. The placement surface of the placement portion 31 faces the inner surface of the translucent cover 20.

  Further, as shown in FIG. 3, when the base 30 is viewed from the X-axis direction (in a cross-sectional view when the base 30 is cut along a plane whose normal is the longitudinal direction), the mounting portion 31 (mounting) The placement surface) is located between the central axis of the translucent cover 20 and the main opening of the translucent cover 20. Thereby, since the distance of the mounting part 31 (mounting surface) and the translucent cover 20 can be enlarged, the bright spot (crush feeling) of the light by the LED element 12 can be suppressed.

  Further, groove portions 31 a (rails) are provided at both ends of the mounting portion 31 in the short direction (Y-axis direction) of the base 30. Each groove portion 31 a has an inverted L-shaped cross section, and extends from one end portion in the longitudinal direction of the base 30 to the other end portion (in the X-axis direction). Each groove portion 31a protrudes from the side wall portion 31a1 in a plate-like side wall portion 31a1 formed so as to stand upright in the main surface vertical direction (Z-axis direction) of the placement surface and in the horizontal direction of the main surface of the placement surface. It is comprised by the protrusion part 31a2. That is, the recess of the groove 31a is a space region constituted by the side wall 31a1 and the protrusion 31a2, and the groove 31a is configured to open in the Y-axis direction.

  The long side end portion of the substrate 11 of the LED module 10 and the fixing portion 52 of the pressing member 50 are accommodated in the recess of each groove portion 31a. Specifically, from one end portion in the longitudinal direction of the base 30, the long side end portion of the substrate 11 and the end portion of the fixing portion 52 of the pressing member 50 are inserted into the recess of the groove portion 31 a while sliding.

  Thereby, the long side edge part of the board | substrate 11 and the edge part of the fixing | fixed part 52 of the pressing member 50 are accommodated in the groove part 31a side by side. Further, the side wall portion 31 a 1 of the groove portion 31 a faces the long side end portion of the substrate 11, and the protruding portion 31 a 2 faces the surface of the substrate 11 and the fixing portion 52. Accordingly, the movement of the substrate 11 and the pressing member 50 in the horizontal direction of the main surface is restricted by the side wall portion 31a1, and the movement of the substrate 11 and the pressing member 50 in the vertical direction of the main surface is restricted by the protruding portion 31a2. And the pressing member 50 does not come out of the groove 31a1.

  The outer shell 32 is configured so that the cross-sectional shape is a substantially arc shape, and each end portion of the arc is connected to each end portion of the mounting portion 31. The outer portion 32 constitutes the outer surface of the outer casing, and the outer surface of the outer portion 32 has a first concave portion 32a, a second concave portion 32b, a third concave portion 32c, and a fourth portion in a direction away from the placement portion 31. A plurality of recesses including a recess 32d and a fifth recess 32e are formed.

  Each of the first concave portion 32a, the second concave portion 32b, the third concave portion 32c, the fourth concave portion 32d, and the fifth concave portion 32e functions as a heat radiating fin, and from one end portion in the longitudinal direction of the base 30 to the other end portion. It is formed continuously over. Thus, since the surface area can be increased by providing a plurality of recesses in the outer shell 32, the heat conducted to the base 30 can be efficiently radiated to the outside of the lamp.

  The 1st recessed part 32a is covered with the translucent cover 20, and is not exposed outside. On the other hand, the 3rd crevice 32c and the 4th crevice 32d are not covered with translucent cover 20, but are exposed outside.

  The 2nd recessed part 32b is a groove | channel (rail) in which the nail | claw part 20a provided in the both ends (end part of main opening) of the circumferential direction of the translucent cover 20 is inserted. The claw portion 20a is locked to the second recess 32b. Thereby, the base 30 and the translucent cover 20 are connected. Specifically, from one end in the longitudinal direction of the base 30, the end in the circumferential direction (claw portion 20 a) of the translucent cover 20 is inserted into the second recess 32 b, and the translucent cover 20 is used as a base. By making it slide in the back of the base 30, the translucent cover 20 and the base 30 can be combined. That is, the translucent cover 20 is attached to the base 30 in a slidable state.

  As described above, the translucent cover 20 covers not only the placement portion 31 of the base 30 but also a part of the outer portion 32 of the base 30. Therefore, when the base 30 is viewed from the X-axis direction, the end portion of the main opening of the translucent cover 20 exists at a position beyond the LED module 10 (substrate 11). In addition, the part which is not covered with the translucent cover 20 among the bases 30 is exposed outside. In the present embodiment, the claw portion 20a is locked to the second recess portion 32b so that the translucent cover 20 straddles the first recess portion 32a, so that portions other than the first recess portion 32a are exposed to the outside. Yes.

  The fifth recess 32 e is a screw hole for screwing the base 30, the first base 60, and the second base 70. In addition, the 5th recessed part 32e is provided in the both ends of the longitudinal direction of the base 30. As shown in FIG.

  The hollow portion 33 is a hollow region surrounded by the placement portion 31 and the outer portion 32. The hollow portion 33 communicates from one end portion in the longitudinal direction of the base 30 to the other end portion. By providing the hollow portion 33, the base 30 can be reduced in weight. Thereby, the bending rigidity of the base 30 can be improved. In addition, you may arrange | position lamp components, such as a power supply circuit, in the hollow part 33. FIG.

  The connecting portion 34 is configured to connect the placing portion 31 and the outer portion 32 in a hollow region surrounded by the placing portion 31 and the outer portion 32. The connecting portion 34 is provided between the two hollow portions 33.

  One end of the connecting portion 34 is connected to the placement portion 31, and the other end of the connecting portion 34 is connected to the outer portion 32. Thus, since the connection part 34 is bridged between the mounting part 31 and the outer shell part 32, the strength of the base 30 can be improved compared to the structure in the case where the connection part 34 is not provided. . Moreover, since the connection part 34 is provided in the position directly under the LED element 12, the heat | fever which generate | occur | produces in the LED element 12 can be efficiently conducted to the outer shell part 32. Therefore, the heat dissipation of the base 30 can be improved compared to the structure in the case where the connecting portion 34 is not provided.

(Connector wire)
As shown in FIG. 2, the connector wire 40 is a conductive wire that electrically connects the adjacent LED modules 10, and electrically connects the electrode terminals 13 of the adjacent LED modules 10. Thereby, electric power is supplied from one LED module 10 to the other LED module 10 via the connector line 40. In the present embodiment, the four LED modules 10 are connected by a connector line 40 so as to be connected in series.

  The connector line 40 includes a mounting portion (connector portion) 41 to be attached to the electrode terminal 13 of the LED module 10, and a power supply line 42 for passing power supplied to the LED module 10 through the electrode terminal 13.

  The mounting portions 41 are provided at both ends of the power supply line 42, and have a substantially rectangular resin molded portion configured to be fitted to the electrode terminal 13 (socket) of the LED module 10, and the resin molded portion. And a conductive portion provided on the surface. The power supply line 42 can be configured by a lead wire called a harness. In the present embodiment, two connector wires 40 are used, the high-voltage side connector wire 40 and the low-voltage side connector wire 40, respectively. In addition, you may comprise so that one connector wire may be provided with two lead wires.

(Presser member)
The holding member 50 is configured to hold the substrate 11 of the LED module 10 against the base 30, and as shown in FIGS. 4A and 4B, the substrate is a portion that holds the surface of the substrate 11. It has a pressing part 51 and a fixing part 52 which is a part fixed to the base 30. 4A and 4B are perspective views showing the configuration of the pressing member in the straight tube LED lamp according to the embodiment of the present invention. FIG. 4A is a perspective view when viewed from diagonally above, and FIG. 4B is from diagonally below. It is a perspective view when seen.

  The fixing portion 52 is a leg portion of the substrate pressing portion 51 and is provided at both ends of the substrate pressing portion 51. The substrate pressing portion 51 and the fixing portion 52 are configured to have a step, and the height position of the back surface (the surface facing the base 30) of the substrate pressing portion 51 is set to the back surface of the fixing portion 52 (the base 30. It is higher than the height position of the contact surface. Thereby, when the pressing member 50 is disposed on the base 30, a space region is formed below the substrate pressing portion 51. The protruding portion 11b of the substrate 11 is inserted into this space region.

  Further, as shown in FIG. 4B, a convex portion 53 that contacts the surface of the substrate 11 is provided on the back surface of the substrate pressing portion 51. In the present embodiment, two convex portions 53 are provided, and each convex portion 53 is configured as a protrusion. The convex part 53 can be made into a substantially triangular prism, for example, and is provided so that the corner | angular part of a triangular prism may face the base 30 side.

  In the present embodiment, the pressing member 50 is also a locking portion that locks the connector wire 40 and has a groove portion 54. The groove portion 54 is configured to have an opposing inner surface. Specifically, the inner surface of the flange portion 51a (projecting portion) provided in the substrate pressing portion 51 and the surface of the fixing portion 52 are opposed to each other. Yes. The flange portion 51a is configured to protrude from both end portions of the substrate pressing portion 51 in a hook shape. The opening surface of the groove portion 54 configured as described above is substantially orthogonal to the main surface of the substrate 11, and the groove portion 54 is configured to open in the lateral direction. The connector wire 40 (power supply line 42) is locked so as to be caught in the groove portion 54 by being accommodated in the groove portion 54 from the lateral direction.

  In addition, the groove portion 54 is provided with a protrusion 54 a that protrudes from one inner surface of the groove portion 54 toward the other inner surface. In the present embodiment, the protrusion 54 a protrudes from the inner surface of the flange portion 51 a toward the surface of the fixed portion 52. The protrusion 54a can be configured in a hemispherical shape, for example. By providing the protrusion 54 a, it is possible to prevent the power supply line 42 once stored in the groove 54 from coming out of the groove 54.

  The pressing member 50 configured as described above can be formed of a resin material such as polybutylene terephthalate (PBT) or polycarbonate (PC). Note that the pressing member 50 may be formed of a material other than resin, and may be formed of, for example, a metal material. However, it is preferable that the convex part 53 is comprised with resin.

  Here, a structure when the board | substrate 11 and the pressing member 50 are attached to the base 30 is demonstrated using FIG.5 and FIG.6. FIG. 5 is an enlarged cross-sectional view of a main part of the straight tube lamp according to the embodiment of the present invention, where (a) is a plan view when cut along a plane passing through the tube axis, and (b) is a diagram of (a). It is sectional drawing in AA '. FIG. 6 is an enlarged perspective view of a main part of the straight tube lamp according to the embodiment of the present invention. In FIG. 6, the translucent cover is omitted.

  As shown in FIG. 5A and FIG. 6, the two substrates 11 arranged adjacent to each other on the base 30 have a protruding portion 11 b of one substrate 11 and a protruding portion 11 b of the other substrate 11. It is arranged to be adjacent. Thereby, each notch part 11a of the board | substrate 11 which adjoins also adjoins.

  The pressing member 50 is disposed on the base 30 across the substrate 11. Specifically, the pressing member 50 is disposed on the base 30 so as to straddle the substrate 11 from the notch portion 11 a of the substrate 11. Moreover, since the notch parts 11a are provided in a pair so as to face each other, the pressing member 50 is placed on the base 30 so as to straddle the substrate 11 (projection part 11b) between the pair of notch parts 11a. Has been placed.

  Thereby, as shown in FIG. 5B, the protruding portion 11 b of the substrate 11 is pressed by the substrate pressing portion 51. In other words, the substrate pressing portion 51 presses the surface of the straddling portion of the substrate 11 (projecting portion 11b). As described above, the protruding portion 11 b is sandwiched between the substrate pressing portion 51 of the pressing member 50 and the base 30.

  In the present embodiment, since the notch portion 11a is provided in the substrate 11, the pressing member 50 is configured to straddle the protruding portion 11b in correspondence with the notch portion 11a. May be a rectangular substrate or the like without the notch 11a. In this case, the pressing member 50 may be configured to straddle part of the substrate 11.

  The substrate pressing portion 51 preferably has no corners, and the surface of the substrate pressing portion 51 is preferably an inclined surface or a curved surface. Thereby, even if the board | substrate holding | suppressing part 51 exists between the LED elements 12, since irregular reflection of light etc. can be suppressed, degradation of a light distribution characteristic can be suppressed.

  In addition, the fixing portion 52 of the pressing member 50 is disposed so as to be exactly within the position where the notch portion 11a is provided. That is, the fixing part 52 is in contact with the base 30 at the position where the notch part 11a is provided.

  In the present embodiment, the pressing member 50 is disposed so as to straddle the adjacent substrates 11. That is, the pressing member 50 (substrate pressing portion 51) simultaneously presses the protruding portion 11 b of one substrate 11 and the protruding portion 11 b of the other substrate 11. Further, the convex portion 53 formed on the back surface of the substrate pressing portion 51 is also in contact with both the substrates 11.

  Note that the long-side end portion of the substrate 11 and the end portion of the fixing portion 52 of the pressing member 50 are stored side by side in the groove portion 31 a of the base 30.

  Further, the pressing member 50 is fixed to the base 30 by a pressing force by the plastic deformation portion 30K. The plastic deformation portion 30K is formed by plastic deformation of a part of the groove portion 31a of the base 30. For example, the plastic deformation portion 30K is a caulking portion, and the groove portion 31a can be plastically deformed by caulking a part of the groove portion 31a of the base 30 corresponding to the fixing portion 52. In this way, by caulking the groove portion 31 a of the portion in which the fixing portion 52 is accommodated, the fixing portion 52 can be fixed to the base 30, and the pressing member 50 can be fixed to the base 30.

  In conjunction with this, the substrate 11 (projecting portion 11 b) receives a pressing force from the substrate pressing portion 51 of the pressing member 50. That is, by caulking the fixing portion 52 and the groove portion 31a, the substrate pressing portion 51 connected to the fixing portion 52 applies a pressing force to the substrate 11 (projecting portion 11b). Accordingly, the substrate 11 is pressed against the base 30 by the pressing force from the pressing member 50 and is fixed to the base 30.

  Further, the connector wire 40 is drawn so as to be hooked on the pressing member 50. In the present embodiment, the power supply line 42 is locked to the bottom of the protrusion 54 a in the groove portion 54 provided in the pressing member 50. For example, the power supply line 42 is accommodated in the groove portion 54 so as to be pushed in from the front side of the protrusion 54a to the back side. Thereby, since the power supply line 42 can be disposed between the protrusion 54a and the bottom of the groove portion 54, the movement of the power supply line 42 can be restricted. Therefore, it is possible to suppress the power supply line 42 from jumping out of the groove portion 54.

  Note that the protrusion 54a may not be provided. In this case, the groove width of the groove portion 54 (the distance between the flange portion 51a and the fixed portion 52) is preferably configured to be slightly smaller than the line width of the power supply line 42. Thus, by pushing the power supply line 42 into the groove portion 54, the power supply line 42 can be sandwiched between the inner surfaces of the groove portion 54, and the power supply line 42 can be fixed.

(First cap)
The first base 60 is a power supply base for supplying power to the LED module 10 (LED element 12), and is provided at one end of the outer casing in the longitudinal direction (X-axis direction). The first base 60 receives power for lighting the LED element 12 of the LED module 10 from the outside of the lamp.

  The first base 60 is configured in a cap shape so as to cover one end portion in the longitudinal direction of the outer casing formed by integrating the translucent cover 20 and the base 30.

  Here, the detailed structure of the 1st nozzle | cap | die 60 is demonstrated using FIG. 7A. FIG. 7A is a perspective view showing the configuration of the first base in the straight tube LED lamp according to the embodiment of the present invention.

  As shown in FIG. 7A, the first base 60 includes a first base body 61, a substantially flat board pressing part 62 integrally formed with the first base body 61, and a pair of power supply pins 63. ing.

  The first base body 61 has a substantially bottomed cylindrical shape, and can be made of a resin material such as PBT, for example. In this case, since the substrate pressing portion 62 is integrally formed with the first base body 61, the substrate pressing portion 62 is also made of a resin material.

  The substrate 11 placed on the base 30 is pressed against the base 30 by a part of the first base 60. In the present embodiment, the substrate pressing portion 62 is configured to press the surface of the substrate 11. Specifically, the substrate 11 is fixed to the base 30 by sandwiching the substrate 11 between the substrate pressing portion 62 and the base 30. In this case, by configuring the substrate pressing portion 62 with a resin material, a desired elastic biasing force can be applied to the substrate pressing portion 62. As a result, the substrate 11 is held between the substrate pressing portion 62 and the base 30 by the urging force of the substrate pressing portion 62.

  A convex portion 62 a that contacts the surface of the substrate 11 is provided on the back surface of the substrate pressing portion 62. In the present embodiment, two convex portions 62a are provided, and each convex portion 62a is formed as a protrusion. The convex portion 62a can be, for example, a substantially triangular prism, and is provided such that the corner of the triangular prism faces the base 30 side. Thus, by providing the convex portion 62a made of resin, even if there is a dimensional variation in the thickness of the substrate 11 or the substrate pressing portion 62 (first base 60) due to a dimensional tolerance or a manufacturing error, the dimensional variation is convex. It can be absorbed by the height of the part 62a and the deformation (crushing) of the convex part 62a.

  The pair of power supply pins 63 are L-shaped conductive pins made of a metal material. The first base 60 can be formed, for example, by insert-molding the first base body 61, the substrate pressing portion 62, and the power supply pin 63.

  The pair of power supply pins 63 is configured to protrude outward from the bottom of the first base body 61. The pair of power supply pins 63 receives power for causing the LED module 10 to emit light from an external device such as a lighting fixture. For example, by attaching the first base 60 to the socket of the lighting fixture, the pair of power supply pins 63 is in a state of receiving DC power from a power supply device built in the lighting fixture.

  In addition, you may comprise a power supply device so that it may be incorporated in the straight tube | pipe type LED lamp 1 instead of the lighting fixture outside a lamp | ramp. In this case, the pair of power supply pins 63 receives AC power from, for example, a commercial 100V AC power supply and supplies the AC power to the power supply device. In the present embodiment, the first base 60 is an L-shaped base having the L-shaped power supply pin 63, but may be a G13 base.

(Second base)
The second base 70 is provided at the other end in the longitudinal direction of the outer casing. Specifically, the second base 70 is configured in a cap shape so as to cover the other end portion in the longitudinal direction of the outer casing formed by integrating the translucent cover 20 and the base 30. Has been.

  Here, the detailed configuration of the second base 70 will be described with reference to FIGS. 7B and 8. FIG. 7B is a perspective view showing the configuration of the second base in the straight tube LED lamp according to the embodiment of the present invention. 8A and 8B are diagrams showing the relationship between the second base and the substrate in the straight tube LED lamp, where FIG. 8A is a plan view and FIG. 8B is a cross-sectional view taken along line BB ′ in FIG. It is.

  As shown in FIG. 7B, the second base 70 includes a second base body 71, a substantially flat substrate pressing portion 72 formed integrally with the second base body 71, and a single non-feed pin 73. It is configured.

  The second base body 71 has a substantially bottomed cylindrical shape, and can be made of a resin material such as PBT, for example. In this case, since the substrate pressing portion 72 is integrally formed with the second base body 71, the substrate pressing portion 72 is also made of a resin material.

  As shown in FIGS. 8A and 8B, the substrate 11 placed on the base 30 is pressed against the base 30 by a part of the second base 70. In the present embodiment, the substrate pressing portion 72 is configured to press the surface of the substrate 11. Specifically, as shown in FIG. 8B, the substrate 11 is fixed to the base 30 by sandwiching the substrate 11 by the substrate pressing portion 72 and the base 30. In this case, a desired elastic biasing force can be applied to the substrate pressing portion 72 by configuring the substrate pressing portion 72 with a resin material. As a result, the substrate 11 is held between the substrate pressing portion 72 and the base 30 by the urging force of the substrate pressing portion 72.

  Further, as shown in FIGS. 7B and 8B, a convex portion 72 a that contacts the surface of the substrate 11 is provided on the back surface of the substrate pressing portion 72. In the present embodiment, two convex portions 72a are provided, and each convex portion 72a is formed as a protrusion. The convex portion 72a can be, for example, a substantially triangular prism, and is provided so that the corner of the triangular prism faces the base 30 side. As described above, by providing the convex portion 72a made of resin, even if the thickness of the substrate 11 or the substrate pressing portion 72 (second base 70) has a dimensional variation due to a dimensional tolerance or a manufacturing error, the dimensional variation is convex. It can be absorbed by the height of the portion 72a and the deformation (collapse) of the convex portion 72a.

  The non-feeding pin 73 is a conductive pin having a T-shaped cross section made of a metal material. The second base 70 can be formed, for example, by insert-molding the second base body 71, the substrate pressing portion 72, and the non-feed pin 73.

  Further, the non-power supply pin 73 is configured to protrude outward from the bottom of the first base body 61. The 2nd nozzle | cap | die 70 which does not have an electric power feeding function functions as an attaching part with a lighting fixture. Therefore, the non-power supply pin 73 functions as an attachment pin to the lighting fixture.

  Note that the second cap 70 may have a grounding function. Specifically, the non-power feeding pin 73 is used as a ground pin, and the non-power feeding pin 73 is grounded through a lighting fixture. Then, for example, the non-feeding pin 73 and the metal base 30 are connected by a lead wire or the like, and the base 30 is grounded.

  In the present embodiment, the second base 70 is a base having the T-shaped non-feed pin 73, but may be a G13 base.

(How to assemble a straight tube lamp)
Next, a method for assembling the straight tube lamp according to the present embodiment will be described with reference to FIGS. 9-13 is a figure for demonstrating the assembly method of the straight tube | pipe lamp which concerns on this Embodiment.

  First, as shown in FIG. 9, the substrate 11 (LED module 10) on which the LED elements 12 are mounted is placed on the placement portion 31 (placement surface) of the base 30. Specifically, the substrate 11 is placed on the base 30 by inserting the long side end of the substrate 11 into the groove 31 a of the base 30 and sliding the substrate 11.

  Next, the pressing member 50 is mounted on the mounting portion 31 (mounting surface) of the base 30 so as to straddle at least a part of the substrate 11. Specifically, the fixing portion 52 of the pressing member 50 is inserted into the groove portion 31 a of the base 30, and the pressing member 50 is slid until the pressing member 50 reaches a position straddling the protruding portion 11 b of the substrate 11. Specifically, the pressing member 50 is arranged on the base 30 so that the substrate pressing portion 51 is positioned on the protruding portion 11 b of the substrate 11.

  Thereafter, similarly, a necessary number of substrates 11 (LED modules 10) and pressing members 50 are alternately placed on the base 30. At this time, the pressing member 50 is disposed so as to straddle both the two protruding portions 11b of the adjacent substrates 11.

  Next, as shown in FIG. 10, in order to plastically deform a part of the base 30, the center punch 100 is disposed at a predetermined position. In the present embodiment, since the groove portion 31a (the portion surrounded by the broken line in the drawing) in which the fixing portion 52 of the pressing member 50 is accommodated is caulked, it faces the groove portion 31a located above the fixing portion 52. The center punch 100 is arranged as described above.

  Thereafter, a part of the base 30 is plastically deformed to fix the pressing member 50 to the base 30. In the present embodiment, the groove 31 a on the fixing portion 52 is caulked by the center punch 100. Specifically, a recess is made in the groove 31 a on the fixing portion 52.

  Here, details when caulking the groove 31a will be described with reference to FIG. FIG. 11 is a cross-sectional view showing a state in which the base is caulked in the assembling method of the straight tube LED lamp according to the embodiment of the present invention, (a) is a cross-sectional view before caulking, and (b). It is sectional drawing after crimping.

  As shown in FIG. 11A, before crimping the groove 31 a, the pressing member 50 rides on the substrate 11 so that there is a gap between the fixed portion 52 and the base 30. The interval of the gap can be adjusted by the height of the convex portion 53.

  Thereafter, the groove 31 a (projecting portion 31 a 2) on the fixing portion 52 is pressurized by the center punch 100. As a result, as shown in FIG. 11 (b), the groove 31a on the fixed portion 52 is caulked and plastically deformed, and the plastically deformed groove 31a is in close contact with the surface of the fixed portion 52 as a plastic deformed portion 30K (caulked portion). To do. As a result, the movement of the pressing member 50 is restricted, and the pressing member 50 can be fixed to the base 30.

  At this time, since the pressing member 50 is pressed by the base 30 by the plastic deformation portion 30K, a pressing force is applied to the substrate 11 from the pressing member 50. Thereby, the substrate 11 can be fixed to the base 30. As described above, in the present embodiment, the substrate 11 is mounted on the base plate by the pressing force of the pressing member 50 to the base 30 generated when the base 30 (groove portion 31a) and the pressing member (fixing portion 52) are caulked. 30 is fixed. That is, the pressing force due to plastic deformation (caulking) of the base 30 is not directly applied to the substrate 11 but indirectly to the substrate 11 via the pressing member 50. As described above, since the substrate 11 does not exist at the caulking position (below the plastic deformation portion 30K), a local load during plastic deformation (caulking) is not applied to the substrate 11. Thereby, it can suppress that distortion arises in the board | substrate 11 by the stress at the time of plastic deformation.

  Further, in the present embodiment, since the convex portion 53 is provided on the substrate pressing portion 51 of the pressing member 50, even if the thickness of the substrate 11 or the pressing member 50 varies due to dimensional tolerance or manufacturing error, The dimensional variation can be absorbed by the deformation (collapse) of the convex portion 53.

  In the present embodiment, the protruding portion 31 a 2 of the groove portion 31 a of the base 30 is formed with a protruding portion that protrudes toward the center punch 100. That is, the convex part is formed in the part which receives the stress of the plastic deformation of the protrusion part 31a2. Thereby, it can prevent that the part which carried out the plastic deformation of the base 30 will deform | transform into the shape which is not intended. Hereinafter, this point will be described in detail with reference to FIG. FIG. 12 is a cross-sectional view showing a state in which the base is caulked in the assembling method of the straight tube type LED lamp according to the modification of the present invention, (a) is a cross-sectional view before caulking, and (b) is It is sectional drawing after crimping.

  As shown in FIG. 12 (a), in the base 30 ′ in the present modification, the groove portion 31a ′ is configured by the side wall portion 31a1 ′ and the protruding portion 31a2 ′, like the base 30 described above. Unlike the base 30 shown in FIG. 11A, the protruding portion 31a2 ′ has no protrusion. Specifically, the protruding portion 31a2 'has a flat plate shape and is configured to stand on the side wall portion 31a1' in the horizontal direction of the main surface of the placement surface. That is, as shown in FIG. 11A, in the above embodiment, the protrusion 31a2 is formed with a protrusion so as to protrude toward the center punch 100, but as shown in FIG. Thus, in this modification, such a convex part is not formed in protrusion part 31a2 '.

  In this case, when the groove 31a ′ (protruding portion 31a2 ′) on the fixing portion 52 of the pressing member 50 is pressurized by the center punch 100 in the same manner as described above, as shown in FIG. The groove portion 31a ′ is caulked and plastically deformed, and the plastically deformed groove portion 31a ′ is in close contact with the surface of the fixed portion 52 as a plastically deforming portion 30K (caulking portion). As a result, as in the above-described embodiment, the pressing member 50 is fixed to the base 30 ′ by the pressing force of the plastic deformation portion 30K to the base 30 ′, and the pressing force of the pressing member 50 to the base 30 ′. Thus, the substrate 11 is fixed to the base 30 ′. As a result, the substrate 11 can be pressed against the base 30 ′ without applying a local load to the substrate 11 during plastic deformation (caulking), so that the substrate 11 is distorted by the stress during plastic deformation. Can be suppressed.

  However, as shown in FIG. 12B, in this modification, since the protrusion 31a2 ′ is not provided with a protrusion, the protrusion 31a2 ′ is pressurized by the center punch 100 to plastically deform the groove 31a ′. Sometimes, the side wall 31a1 'of the groove 31a' is curved and deformed so as to bulge outward due to the stress during plastic deformation. As a result, the pressing member 50 (fixed portion 52) cannot be sufficiently pressed by the plastic deformation portion 30K (projecting portion 31a2 '), and a sufficient pressing force may not be applied to the substrate 11.

  On the other hand, as shown in FIG. 11 (a), the protrusion 31a2 is pressed by the center punch 100 by providing a convex portion at the portion of the protrusion 31a2 of the groove 31a that receives the plastic deformation stress. When the groove part 31a is plastically deformed, the side wall part 31a1 can be prevented from being deformed. Thereby, since the pressing member 50 (fixed part 52) can be sufficiently pressed by the plastic deformation part 30K (projecting part 31a2), a sufficient pressing force can be applied to the substrate 11.

  Thus, as shown in FIG. 11 (a), it is preferable to provide a protrusion on the protrusion 31a2 in a state before caulking, but as shown in FIG. 12 (a), the protrusion 31a2 ′ has a protrusion. Since the pressing member 50 (fixed portion 52) can be pressed even without providing the convex portion, it is not always necessary to provide the convex portion at the protruding portion of the groove portion.

  11B, after the groove 31a is plastically deformed by the center punch 100, by removing the center punch 100 from the base 30, the groove 31a of the base 30 is formed as a trace of the plastic deformation portion 30K. A depression is formed in the.

  Next, as shown in FIG. 13, the electrode terminals 13 of the adjacent LED modules 10 are electrically connected by a connector line 40. At this time, the power supply line 42 of the connector wire 40 is accommodated in the groove portion 54 of the pressing member 50. Specifically, the power supply line 42 is accommodated in the groove portion 54 so as to be pushed in from the front side of the protrusion 54a to the back side.

  Next, as shown in FIG. 14, the translucent cover 20 is attached to the base 30, and the translucent cover 20 and the base 30 are integrated. Specifically, the translucent cover 20 is slid and inserted into the base 30 such that the claw portion 20 a of the translucent cover 20 is engaged with the second recess 32 b of the base 30. In addition, after inserting the translucent cover 20 in the base 30, you may adhere the translucent cover 20 and the base 30 with an adhesive etc. as needed.

  Thereafter, although not shown, the first base 60 and the second base 70 are attached to both ends of the base 30 and screwed. Thereby, the straight tube | pipe type LED lamp 1 can be completed.

  As mentioned above, according to the straight tube | pipe type LED lamp 1 which concerns on this Embodiment, the pressing member 50 is arrange | positioned on the base 30 so that the board | substrate 11 may be straddled, and the holding member 50 is plastically deformed by a part of the base 30. Is fixed to the base 30. At this time, since the pressing member 50 presses the substrate 11 against the base 30 by the pressing force due to plastic deformation of the base 30, the substrate 11 can be fixed to the base 30.

  Specifically, the plastic deformation portion 30K is formed by caulking a part of the groove portion 31a of the base 30, and the pressing member 50 is fixed to the base 30 by the pressing force by the plastic deformation portion 30K. Then, the substrate 11 is pressed by the pressing force when the pressing member 50 is fixed to the base 30, and thereby the substrate 11 is fixed to the base 30.

  As described above, in the present embodiment, the substrate 11 is fixed to the base 30 by the pressing force when fixing the pressing member 50. Thereby, since a pressing force can be indirectly applied to the substrate 11, it is possible to suppress a local load from being applied to the substrate 11. Therefore, the substrate 11 can be fixed to the base 30 with a simple configuration without applying an excessive load to the substrate 11.

  In particular, if the substrate 11 is made of resin or ceramic, cracks and the like are likely to occur due to local loads, but by applying a pressing force indirectly to the substrate 11 as in the present embodiment, Even if the substrate 11 is made of resin or ceramic, the occurrence of cracks and the like can be suppressed. Thereby, it can suppress that the reliability of the LED module 10 falls.

  In addition, since the substrate 11 can be fixed to the base 30 without using an adhesive, when the adhesive is used, the LED module 10 falls due to a decrease in adhesive force, or the manufacturing time becomes longer due to the curing time. This can be suppressed.

  Further, in the present embodiment, the pair of cutout portions 11a are provided by cutting out the opposite end portions of the substrate 11, and the pressing member 50 is formed between the pair of cutout portions 11a (the protruding portion). 11b) is arranged on the base 30 so as to straddle. Thereby, it is not necessary to provide an extra space in the base 30 only for arranging the pressing member 50.

  Furthermore, in this Embodiment, the fixing | fixed part 52 of the pressing member 50 is contacting the base 30 in the position where the notch part 11a was provided. Thereby, since the pressing member 50 can be stably fixed to the base 30, the substrate 11 can also be stably fixed to the base 30.

  In the present embodiment, the substrate pressing portion 51 is provided with a convex portion 53 made of resin. Thereby, the dimensional variation of the board | substrate 11 and the pressing member 50 can be absorbed by the deformation | transformation (reduction) of the convex part 53. FIG.

(Lighting device)
Next, the illuminating device 2 which concerns on embodiment of this invention is demonstrated using FIG. FIG. 15 is a schematic perspective view of the illumination device according to the embodiment of the present invention.

  As shown in FIG. 15, the lighting device 2 according to the present embodiment is a base light type lighting device, and includes a straight tube LED lamp 1 and a lighting fixture 3. In this embodiment, as shown in FIG. 15, two straight tube LED lamps 1 are used.

  The lighting fixture 3 includes a pair of sockets 4 that are electrically connected to the straight tube LED lamp 1 and holds the straight tube LED lamp 1, and a fixture body 5 to which the socket 4 is attached. The instrument body 5 can be formed by, for example, pressing an aluminum steel plate. Moreover, the inner surface of the instrument main body 5 is a reflecting surface that reflects light emitted from the straight tube LED lamp 1 in a predetermined direction (for example, downward).

  The luminaire 3 configured as described above is mounted on a ceiling or the like via a fixture, for example. A translucent cover member may be provided so as to cover the straight tube LED lamp 1.

  As described above, the straight tube LED lamp 1 according to the present embodiment can be realized as a lighting device or the like.

(Other)
As mentioned above, although the light source for illumination and the illuminating device which concern on this invention were demonstrated based on embodiment and a modification, this invention is not limited to said embodiment.

  For example, in the embodiment and the modification described above, the adjacent portion of the adjacent substrates 11 is pressed by the pressing member 50, but only a part of one substrate may be pressed by the pressing member 50. Specifically, the pressing member 50 may be disposed so as to straddle part of the opposing long side end portions of the substrate 11.

  In the embodiment and the modification described above, the LED module 10 is an SMD type LED module using the packaged LED element 12, but is not limited thereto. Specifically, as shown in FIG. 16, a plurality of LED chips 12A are directly mounted on the substrate 11, and the plurality of LED chips are collectively sealed with a sealing member 14 (phosphor-containing resin). A (Chip On Board) type LED module 10A may be used.

  In the above-described embodiment and modification, the one-side power feeding method for receiving power from only one side of the first base 60 is used. However, the both-side power feeding method for receiving power from both sides of the first base 60 and the second base 70 may be used. I do not care. In this case, the first base 60 may be provided instead of the second base 70.

  In the above-described embodiment and modification, the straight tube LED lamp in which the outer casing is configured by the translucent cover 20 and the base 30 has been described as an example, but the present invention is not limited thereto. For example, instead of the translucent cover 20, a long cylindrical (straight tubular) translucent casing (such as a glass tube or a plastic tube) is used to store the base 30 in the translucent casing. A straight tube type LED lamp configured as described above may be used.

  Moreover, in said embodiment and modification, although the LED module (LED element) was comprised so that white light might be emitted by a blue LED chip and a yellow fluorescent substance, it is not restricted to this. For example, in order to improve color rendering properties, a red phosphor or a green phosphor may be further mixed in addition to the yellow phosphor. Moreover, it is also possible to use a phosphor-containing resin containing a red phosphor and a green phosphor without using a yellow phosphor, and to emit white light by combining this with a blue LED chip. it can.

  Moreover, in said embodiment and modification, you may use the LED chip which light-emits colors other than blue as an LED chip. For example, when an ultraviolet light emitting LED chip is used, a combination of phosphor particles that emit light in three primary colors (red, green, and blue) can be used as the phosphor particles. Furthermore, a wavelength conversion material other than the phosphor particles may be used. For example, the wavelength conversion material absorbs light of a certain wavelength such as a semiconductor, a metal complex, an organic dye, or a pigment, and has a wavelength different from the absorbed light. A material containing a substance that emits light may be used.

  Further, in the above embodiments and modifications, the LED is exemplified as the light emitting element, but other solid light emitting elements such as a semiconductor light emitting element such as a semiconductor laser or an EL element such as an organic EL (Electro Luminescence) or an inorganic EL. An element may be used.

  In the above-described embodiment and modification, the straight tube lamp has been described as an example in which the LED module (substrate) is fixed to the base with the pressing member. However, the light bulb type lamp or the round lamp may be used. Can be applied. In the case of a light bulb shaped lamp, the number of LED modules can be one, and a substrate obtained by cutting out a circular substrate or a part of a square substrate can be used as the substrate of the LED module.

  In addition, any combination of the components and functions in the embodiment and the modification can be arbitrarily combined without departing from the gist of the present invention, and the form obtained by making various modifications conceived by those skilled in the art with respect to the embodiment and the modification. The embodiment realized by the above is also included in the present invention.

DESCRIPTION OF SYMBOLS 1 Straight tube type LED lamp 2 Lighting apparatus 3 Lighting fixture 4 Socket 5 Appliance main body 10, 10A LED module 11 Board | substrate 11a Notch part 11b, 31a2, 31a2 'Protrusion part 12 LED element 12a Package 12b LED chip 12c, 14 Sealing member 12A LED chip 13 Electrode terminal 20 Translucent cover 20a Claw part 30, 30 ′ Base 30K Plastic deformation part 31 Placement part 31a, 31a ′, 54 Groove part 31a1, 31a1 ′ Side wall part 32 Outer part 32a First concave part 32b First 2 recessed portion 32c 3rd recessed portion 32d 4th recessed portion 32e 5th recessed portion 33 hollow portion 34 connecting portion 40 connector wire 41 mounting portion 42 power supply line 50 holding member 51, 62, 72 substrate holding portion 51a flange portion 52 fixing portion 53, 62a , 72a Projection 54a Protrusion 60 First cap 61 First Base body 63 Power supply pin 70 Second base 71 Second base body 73 Non-power supply pin 100 Center punch

Claims (12)

A translucent cover;
A metal base covered with the translucent cover;
A substrate placed on the placement surface of the base;
A light emitting device disposed on the substrate;
A pressing member for pressing the substrate,
The pressing member is disposed on the base so as to straddle the substrate,
The base has a plastic deformation portion formed by plastic deformation of a part of the base,
The substrate is fixed to the base by the pressing member being fixed to the base by a pressing force by the plastic deformation portion ,
The direction of the pressing force by the plastic deformation part is a light source for illumination which is a direction in which the pressing member is pressed against the substrate . The pressing member includes a substrate pressing portion that presses the surface of the substrate in a straddling portion, and a fixing portion that is fixed to the base.
The light source for illumination according to claim 1, wherein the fixing portion is fixed to the base by a pressing force by the plastic deformation portion. A groove is formed in the base,
The end portion of the substrate and the end portion of the fixing portion are housed in the groove portion side by side,
The illumination light source according to claim 2, wherein the plastic deformation portion is formed by plastic deformation of a part of the groove portion. The groove portion is configured by a side wall portion standing in a direction perpendicular to the main surface of the mounting surface and a protruding portion protruding from the side wall portion in a horizontal direction of the main surface of the mounting surface.
The illumination light source according to claim 3, wherein the pressing member is fixed to the base by plastically deforming the protrusion. The translucent cover and the base are elongated,
The groove is provided along the longitudinal direction of the base,
The illumination light source according to claim 3, wherein an end portion of the substrate and an end portion of the fixing portion are slid into the groove portion. The translucent cover is a cutout cylindrical member having a main opening in which a part of a long cylinder is cut out along the longitudinal direction,
The light source for illumination according to claim 5, wherein the base is formed with a recess for locking the end of the main opening of the translucent cover. The substrate pressing portion is provided with a convex portion that contacts the surface of the substrate,
The illumination light source according to claim 2, wherein the convex portion is made of resin. The illumination light source according to any one of claims 1 to 7, wherein the plastic deformation portion is formed by caulking a part of the base. An illumination device comprising the illumination light source according to claim 1. Placing the substrate on which the light emitting element is mounted on the placement surface of the metal base;
Placing the pressing member on the base so as to straddle at least a part of the substrate;
Fixing the substrate to the base by fixing the pressing member to the base by a pressing force by a part of the base that is plastically deformed by part of the base ; and only including,
The method of manufacturing an illumination light source , wherein a direction of a pressing force by a part of the base that is plastically deformed is a direction in which the pressing member is pressed against the substrate . The base is formed with a groove in which an end of the substrate and a part of the pressing member are stored,
The groove portion is configured by a side wall portion standing in a direction perpendicular to the main surface of the mounting surface and a protruding portion protruding from the side wall portion in a horizontal direction of the main surface of the mounting surface.
A convex part is formed on the part that receives the stress of the plastic deformation of the protruding part,
The light source for illumination according to claim 10, wherein in the step of fixing the substrate to the base, a stress from a direction perpendicular to the principal surface of the mounting surface is applied to the convex portion in order to plastically deform the convex portion. Production method. The method for manufacturing a light source for illumination according to claim 10 or 11, wherein in the step of fixing the substrate to the base, a part of the base is plastically deformed by caulking part of the base.

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