JPWO2013190771A1 - Lamp and lighting device - Google Patents

Abstract

The straight tube LED lamp (1) includes an LED module (10) having a long substrate (11) and a plurality of LED elements (12) mounted on a first surface (11a) of the substrate (11). A long housing (20) for housing the LED module (10), and a first base (50) housed in the housing (20) on which the LED module (10) is disposed, The first base (50) includes a first wall (51) and a second wall (52) that sandwich both lateral sides of the substrate (11), and a second wall from the first wall (51). A plurality of first protrusions (51a) protruding toward the part (52), and a plurality of second protrusions (52a) protruding from the second wall part (52) toward the first wall part (51) The plurality of first protrusions (51a) and the plurality of second protrusions (52a) are formed on the first surface (11a) of the substrate (11). Are contact, the both ends in the longitudinal direction of the substrate (11), at least one of the first protruding portion (51a) and second protrusions (52a) are provided.

Description

  The present invention relates to a lamp and a lighting device, for example, a straight tube type LED lamp using a light emitting diode (LED) and a lighting device including the same.

  LED is expected to be a new light source in various lamps such as fluorescent lamps and incandescent lamps, which are conventionally known because of its high efficiency and long life, and research and development of lamps using LED (LED lamps) is being promoted. ing.

  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.

JP 2009-043447 A

  The straight tube type LED lamp includes, for example, a long straight tube, a pair of caps provided at both ends of the straight tube, a plurality of LED modules (light emitting modules) housed in the straight tube, and an LED module. It is comprised by the base to mount. Each of the LED modules includes, for example, a mounting substrate made of ceramics, a plurality of LEDs (bare chips) mounted on the mounting substrate, and a sealing member made of a resin containing phosphor particles.

  In recent years, it has been studied to use a long mounting board by elongating the LED module. In addition, the use of a resin substrate based on a resin as a mounting substrate has been studied.

  However, when a long mounting board is used, the mounting board is warped and there is a problem that desired light distribution characteristics cannot be obtained. In particular, it has been found that when a resin substrate is used as the mounting substrate, the mounting substrate is greatly warped.

  The present invention has been made to solve such a problem, and an object of the present invention is to provide a lamp and an illuminating device capable of continuously fixing a light emitting module to a base in a flat state.

  In order to achieve the above object, one aspect of a lamp according to the present invention is mounted on a long substrate on which a wiring having a predetermined shape is formed, and a first surface which is a surface on which the wiring is formed. A light emitting module having a plurality of light emitting elements, a long housing for housing the light emitting module, and a first base housed in the housing and on which the light emitting module is disposed, The first base includes a first wall portion and a second wall portion sandwiching both lateral sides of the substrate in a short direction, and a plurality of first protrusion portions protruding from the first wall portion toward the second wall portion. A plurality of second projecting portions projecting from the second wall portion toward the first wall portion, wherein the plurality of first projecting portions and the plurality of second projecting portions are the first of the substrate. One end of the substrate in the longitudinal direction, the first protrusion and the second Is at least one of the output portion is provided, the other end portion in the longitudinal direction of the substrate is characterized in that at least one of the first projecting portion and the second projecting portion is provided.

  Further, in one aspect of the lamp according to the present invention, when the length in the longitudinal direction of the substrate is L1, the one end and the other end are L1 × 10 from the longitudinal edge of the substrate. % Or less.

  Further, in one aspect of the lamp according to the present invention, L1 / L2 ≧ 38.6 may be satisfied, where L2 is a length in the short direction of the substrate.

  Further, in one aspect of the lamp according to the present invention, the linear expansion coefficient of the wiring may be larger than the linear expansion coefficient of the substrate.

  Further, in one aspect of the lamp according to the present invention, the substrate may be a resin substrate made of a resin.

  Further, in one aspect of the lamp according to the present invention, the substrate may further include a metal film formed on a second surface opposite to the first surface.

  In the lamp according to the aspect of the invention, the area of the metal film may be larger than the area of the wiring.

  Moreover, in one aspect of the lamp according to the present invention, the light emitting module includes a plurality of the light emitting modules, and the plurality of light emitting modules are arranged so that a longitudinal direction of each of the substrates is along a longitudinal direction of the housing, At least one of the first protrusion and the second protrusion may be provided so as to straddle the adjacent light emitting modules.

  Moreover, in one aspect of the lamp according to the present invention, the first base further includes a biasing portion that biases toward a second surface that is a surface opposite to the first surface. Good.

  Further, in one aspect of the lamp according to the present invention, the first wall portion and the second wall portion are notches formed in the vicinity of at least one of the first protrusion and the second protrusion. It is good also as having.

  The lamp according to the aspect of the invention may further include a second base made of metal and disposed between the first base and the light emitting module, and the light emitting module includes the second base. It may be placed on a table.

  One embodiment of the lighting device according to the present invention includes any one of the lamps described above.

  According to the present invention, since the warpage of the substrate can be suppressed, the substrate of the light emitting module can be continuously fixed to the base in a flat state. Thereby, desired light distribution characteristics can be obtained.

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. 3A is a plan view of the LED module according to the embodiment of the present invention, and FIG. 3B is a cross-sectional view of the LED module taken along line XX ′ in FIG. (C) of FIG. 3 is sectional drawing of the LED module in the YY 'line | wire of (a). FIG. 4 is a plan view of the first base in the straight tube LED lamp according to the embodiment of the present invention. FIG. 5A is a partially enlarged cross-sectional view (a cross-sectional view taken along a plane passing through the tube axis) of the straight tube LED lamp according to the embodiment of the present invention, and FIG. These are sectional drawings of the straight tube | pipe type LED lamp in the AA 'line of (a), (c) of FIG. 5 is a cross section of the straight tube | pipe type LED lamp in the BB' line of (a). FIG. FIG. 6A is an enlarged view of a main part of the straight tube LED lamp according to the embodiment of the present invention (an enlarged view of a region surrounded by a broken line A in FIG. 4). FIG. 6B is an enlarged view of the main part of the straight tube LED lamp according to the embodiment of the present invention (enlarged view of a region surrounded by a broken line B in FIG. 4). FIG. 7 is a diagram showing an assembly process of the light source module in the straight tube LED lamp according to the embodiment of the present invention, and FIG. 7 (a) is taken along the line AA ′ of FIG. 5 (a). FIG. 7B is a view corresponding to the cross-sectional view, and FIG. 7B is a view corresponding to the cross-sectional view taken along the line BB ′ of FIG. FIG. 8 is a perspective view showing a configuration around the power supply base in the straight tube LED lamp according to the embodiment of the present invention. FIG. 8A is an attachment of the second base and the power supply base. In order to make the state easy to understand, the lighting circuit, the lighting circuit cover, the casing, and the like are omitted, and FIG. 8B is a diagram showing the lighting circuit, the lighting circuit cover, and the casing. FIG. 9 is a perspective view showing the configuration around the grounding base in the straight tube LED lamp according to the embodiment of the present invention. FIG. 9A shows the first grounding base body and the second grounding. It is a figure which shows the state before fixing a base body part for a work, (b) of FIG. 9 is a figure which shows the state after fixing a base body part for 1st earth | ground and a base body part for 2nd earth | grounds. It is. FIG. 10 is a perspective view showing the configuration of the illumination device according to the embodiment of the present invention. FIG. 11 is an enlarged view of the main part of the straight tube LED lamp according to Modification 1 of the embodiment of the present invention (enlarged view of the central part of the first base). FIG. 12A is an enlarged view of an essential part of an straight tube LED lamp according to Modification 2 of the embodiment of the present invention (enlarged view around the end of the first base). FIG. 12B is an enlarged view of a main part of a straight tube LED lamp according to Modification 2 of the embodiment of the present invention (enlarged view around the central portion of the first base). FIG. 13A is an enlarged view of an essential part of an straight tube LED lamp according to Modification 3 of the embodiment of the present invention (enlarged view around the end of the first base). FIG. 13B is an enlarged view of a main part of a straight tube LED lamp according to Modification 3 of the embodiment of the present invention (enlarged view of the vicinity of the central portion of the first base).

  Hereinafter, a lamp and an illumination device according to an embodiment 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. Therefore, the numerical values, shapes, materials, constituent elements, arrangement positions and connecting forms of constituent elements, processes, order of processes, and the like shown in the following embodiments are merely examples and do not limit the present invention. 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 about the same structural member.

(Embodiment)
The configuration of the lamp according to the embodiment of the present invention will be described below. In the present embodiment, a straight tube LED lamp will be described as an example of a lamp.

[Entire configuration 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. FIG. 1 is a schematic perspective view of a straight tube LED lamp according to an embodiment of the present invention.

  As shown in FIG. 1, a straight tube LED lamp 1 according to the present embodiment is a straight tube LED lamp that is an illumination light source that replaces a conventional straight tube fluorescent lamp. The straight tube LED lamp 1 includes an LED module 10, a long casing 20 that houses the LED module 10, and a first provided at one end in the longitudinal direction (tube axis direction) of the casing 20. A power supply base (power supply side base) 30 that is a base, a ground base (non-power supply base) 40 that is a second base provided at the other end in the longitudinal direction of the housing 20, and the LED module 10 A first base 50 and a second base 55 (not shown in FIG. 1), a connector 60 that electrically connects the LED module 10 and other electronic components (LED module 10, lighting circuit); A reflection member 70 that reflects light emitted from the LED module 10 in a predetermined direction, an attachment member 80 (not shown in FIG. 1) for attaching the first base 50 to the housing 20, and an LED module 10 to emit light. Lit times And a 90 (not shown in FIG. 1). In the present embodiment, a one-side power feeding method in which power is fed from one side of only the power feeding base 30 is employed.

  Hereafter, each component of the straight tube | pipe type LED lamp 1 is explained in full detail using FIG.2, FIG4 and FIG.5, referring FIG. FIG. 2 is an exploded perspective view of the straight tube LED lamp according to the embodiment of the present invention. FIG. 4 is a plan view of a first base in the straight tube LED lamp. FIG. 5A is a partially enlarged cross-sectional view of the straight tube LED lamp, and FIG. 5B is a cross-sectional view of the straight tube LED lamp taken along line AA ′ of FIG. FIG. 5C is a cross-sectional view of the straight tube LED lamp taken along line BB ′ in FIG.

[LED module]
As shown in FIG. 2, a plurality of long LED modules 10 are arranged along the tube axis direction of the housing 20. The plurality of LED modules 10 are arranged so that the longitudinal direction of each substrate 11 is along the longitudinal direction of the housing 20. In the present embodiment, two LED modules 10 are used.

  Here, the detailed structure of each LED module 10 is demonstrated using FIG. 3, referring FIG. 3A and 3B show the configuration of the LED module according to the embodiment of the present invention, in which FIG. 3A is a plan view of the LED module, and FIG. 3B is the same in the XX ′ line of FIG. Sectional drawing of an LED module, (c) is sectional drawing of the LED module in the YY 'line of (a).

  As shown in FIG. 3, the LED module 10 is a surface mount device (SMD) type light emitting module, and includes a substrate 11, a plurality of LED elements 12 mounted on the substrate 11, and one of the substrates 11. Wiring 13 formed on this surface, metal film 14 formed on the other surface of substrate 11, and electrode terminal 15.

  The substrate 11 is a mounting substrate for mounting the LED element 12. In the present embodiment, a rectangular substrate that is elongated in the tube axis direction of the housing 20 is used as the substrate 11. The substrate 11 includes a first surface (first main surface) 11a that is a surface on which the LED elements 12 are mounted, and a second surface (second main surface) 11b that is a surface opposite to the first surface 11a. Have. The LED element 12 is mounted only on the first surface 11 a of the substrate 11. As will be described later, the LED module 10 is mounted on the second base 55 such that the second surface 11b of the substrate 11 and the mounting surface of the second base 55 are in contact with each other.

  As the substrate 11, a resin substrate made of resin, a metal base substrate made of metal, a glass substrate made of glass, or the like can be used. As the resin substrate, for example, a glass composite substrate (CEM-3 or the like), a glass epoxy substrate (FR-4 or the like), a substrate made of paper phenol or paper epoxy (FR-1 or the like), or a flexible material made of polyimide or the like. Flexible substrates can be used. As the metal base substrate, for example, an aluminum alloy substrate, an iron alloy substrate, a copper alloy substrate, or the like can be used. In the present embodiment, a CEM-3 double-sided substrate is used as the substrate 11.

  Further, when the length in the longitudinal direction (long side length) of the substrate 11 is L1 (mm) and the length in the short side direction (short side length) of the substrate 11 is L2 (mm), the substrate 11 The aspect ratio (L1 / L2) is 7.5 or more. Specifically, L1 = 300 (mm) to 600 (mm), and L2 = 10 (mm) to 40 (mm). In the present embodiment, the substrate 11 is used in which L1 = 580 mm, L2 = 15 mm, and the thickness of the substrate 11 is 1.0 (mm).

  The LED element 12 is an example of a light emitting element, and is mounted on the first surface 11 a on the substrate 11. In the present embodiment, as shown in FIG. 3A, a plurality of LED elements 12 are 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. 3C, the LED element 12 is accommodated in a package (container) 12a and a package 12a. LED chip 12b, and a sealing member 12c that seals the LED chip 12b. The LED element 12 in the present embodiment is a white LED element that emits white light.

  The package 12a is molded from a white resin or the like, and includes an inverted frustoconical recess (cavity). The inner side 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 an example of a semiconductor light emitting element, and is mounted in a 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. Accordingly, since the yellow phosphor particles are excited by the blue light of the blue LED chip to emit yellow light, white light is emitted from the sealing member 12c by the excited yellow light and the blue light of the blue LED chip. Is done. The sealing member 12c may also contain a light diffusing material such as silica.

  In this way, the LED element 12 is configured. Although not shown, the LED element 12 has two external connection terminals of a positive electrode and a negative electrode, and these external connection terminals and the wiring 13 are electrically connected. In addition, in this Embodiment, although the LED element 12 is mounted in the shape of a line, it is not restricted to this. Moreover, in this Embodiment, although the some LED element 12 on the board | substrate 11 is connected in series by the wiring 13, it is good also as a connection which combined the parallel connection or the serial connection and the parallel connection.

  The wiring 13 is a conductive thin film for electrically connecting the LED elements 12 to each other, and is patterned in a predetermined shape on the first surface 11 a of the substrate 11. For example, the wiring 13 is intermittently formed along the longitudinal direction of the substrate 11 in order to connect adjacent LED elements 12. The wiring 13 is also formed to connect the LED element 12 mounted on the short side of the substrate 11 and the electrode terminal 15. Thereby, electric power is supplied from the electrode terminal 15 to each LED element 12 via the wiring 13.

Further, in the present embodiment, the linear expansion coefficient of the wiring 13 is configured to be larger than the linear expansion coefficient of the substrate 11. As the wiring 13, a metal wiring made of a metal such as copper (linear expansion coefficient: 16.8 × 10 ⁻⁶ / ° C.) or silver (linear expansion coefficient: 18.9 × 10 ⁻⁶ / ° C.) can be used. . In this case, as the substrate 11, for example, a resin substrate (linear expansion coefficient: 10 to 35 × 10 ⁻⁶ / ° C.) can be used. In the present embodiment, a copper wiring (wiring 13) is formed on one surface of a resin substrate (substrate 11) having a linear expansion coefficient of 24 × 10 ⁻⁶ / ° C., and a metal layer (metal film 14) is formed on the other surface. Is used.

  The metal film (metal layer) 14 is a heat radiating member (heat sink) for radiating the heat generated by the LED elements 12, and is formed on the second surface 11 b of the substrate 11. As the metal film 14, a copper thin film or a silver thin film can be used. The metal film 14 and the wiring 13 may be made of the same material or different materials. In addition, the metal film 14 in this Embodiment is the same material as the wiring 13, and is comprised with copper as above-mentioned.

  Further, the area (surface area) of the metal film 14 is configured to be larger than the area (surface area) of the wiring 13. In the present embodiment, the metal film 14 is formed in a rectangular shape on substantially the entire second surface 11b. Note that the thickness of the metal film 14 is substantially the same as the thickness of the wiring 13. That is, the volume of the metal film 14 is larger than the volume of the wiring 13.

  The electrode terminal 15 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 15 in the present embodiment is configured as a socket type, and includes a resin socket and a conductive pin for receiving DC power. The conductive pins are electrically connected to metal wiring formed on the substrate 11. By mounting the mounting portion 61 of the connector 60 on the electrode terminal 15 (socket), the electrode terminal 15 receives power supply from the connector 60. The electrode terminal 15 may be a metal electrode.

  The LED module 10 is configured as described above. Although not shown, the entire surface of the first surface 11a of the substrate 11 is covered with a white resist (insulating film) so as to cover the wiring 13 except for the contact portion with the LED element 12.

[Case]
The housing 20 is a straight tube (tube) having translucency, and as shown in FIG. 2, is a long cylindrical outer member (outer tube) having openings at both ends. The housing 20 houses the LED module 10, the first base 50, the second base 55, the lighting circuit 90, and the like.

The housing | casing 20 can be comprised with a translucent material and can use a glass-made glass tube (glass bulb) or a plastic tube. For example, the casing 20 is a straight pipe (glass pipe) made of soda-lime glass having a silica (SiO ₂ ) of 70 to 72 [%], or a straight pipe (plastic pipe) made of a resin material such as acrylic or polycarbonate. ) Can be used.

  Moreover, you may comprise so that the housing | casing 20 may be provided with the light-diffusion part which has a light-diffusion function for diffusing the light from the LED module 10. FIG. Thereby, the light emitted from the LED module can be diffused when passing through the housing 20. Examples of the light diffusion portion include a light diffusion sheet or a light diffusion film formed on the inner surface or the outer surface of the housing 20. Specifically, a milky white light diffusion film can be formed by attaching a resin or a white pigment containing a light diffusion material (fine particles) such as silica or calcium carbonate to the inner surface or the outer surface of the housing 20. Other light diffusing portions include a lens structure provided inside or outside the housing 20, or a concave portion or a convex portion formed in the housing 20. For example, the case 20 can be provided with a light diffusion function (light diffusion unit) by printing a dot pattern on the inner surface or the outer surface of the case 20 or by processing a part of the case 20. Or the housing | casing 20 itself can also be made to have a light-diffusion function (light-diffusion part) in the housing | casing 20 by shape | molding using the resin material etc. in which the light-diffusion material was disperse | distributed.

  As the case 20, a non-split type case may be used as in the present embodiment, or a split type case having a halved structure in which the radial cross-sectional shape is substantially hemispherical. May be used. In the case of using a split type housing, the housing 20 made of resin may be used. Moreover, the housing | casing 20 does not necessarily need to be cylindrical shape, and can also be made into a rectangular tube shape.

[Feeding cap]
The power supply base (first base) 30 is a base for supplying power to the LED module 10, and receives power from the outside of the lamp for lighting the LED element 12 of the LED module 10. The power supply cap 30 is formed in a substantially bottomed cylindrical shape, and is provided so as to cover one side of the casing 20 in the longitudinal direction. As shown in FIG. 2, the power supply base 30 in the present embodiment includes a resin power supply base body 31 made of a synthetic resin such as polybutylene terephthalate (PBT) and a pair of power supplies made of a metal material such as brass. It consists of pins 32.

  The power supply base 30 is configured to be divided into a plurality of parts along the axial direction of the power supply base 30. The power supply base body 31 in the present embodiment is configured to be disassembled into upper and lower halves with a plane passing through the tube axis of the housing 20 as a split surface, and the first power supply base body 31a and the second power supply base. It is comprised by the main-body part 31b. The power supply base 30 is connected to the socket of the lighting circuit 90 via a lead wire after the power supply pin 32 is electrically connected, and then the power supply pin 30 is connected to the power supply base body 31a and the second power supply base body 31b. 32, the first power supply base body 31a and the second power supply base body 31b are screwed in a state where the second base 55 is sandwiched between the second power supply base body 31b and the second base 55. Attach to the end.

  The pair of power supply pins 32 are configured to protrude outward from the bottom of the power supply base body 31, and from an external device such as a lighting fixture as power for lighting the LED element 12 of the LED module 10. It functions as a power receiving pin that receives predetermined power. For example, by attaching the power supply base 30 to the socket of the lighting fixture, the pair of power supply pins 32 is in a state of receiving DC power. The pair of power supply pins 32 are connected to the lighting circuit 90 in the housing 20 by lead wires, and the DC power received by the pair of power supply pins 32 is supplied to the lighting circuit 90.

[Earth cap]
The grounding cap 40 is grounded to the metal second base 55 and has a function of flowing an abnormal current generated in the lamp to the ground via the lighting fixture. The grounding cap 40 has a substantially bottomed cylindrical shape, and is provided so as to cover the other end of the casing 20 in the longitudinal direction. As shown in FIG. 2, the grounding cap 40 in the present embodiment includes a resinous grounding base body 41 made of a synthetic resin such as PBT and a single grounding pin 42 made of a metal material such as brass. .

  The grounding cap 40 is configured to be divided into a plurality of parts along the axial direction of the grounding cap 40 in the same manner as the power feeding cap 30. The ground base body 41 in the present embodiment is configured to be disassembled into upper and lower halves with a plane passing through the tube axis of the housing 20 as a split surface. The first ground base body 41a and the second ground base It is comprised by the main-body part 41b. The grounding base 40 is connected to the grounding pin 42 and the housing 20 by the first grounding base body 41a and the second grounding base body 41b after the ground pin 42 is attached to the first base 50 by the connecting member 43. In a state where the end portion and the second base 55 are sandwiched, the first ground base body portion 41a and the second ground base body portion 41b are screwed to be attached to the end portion of the housing 20.

  The earth pin 42 is configured to protrude outward from the bottom of the grounding base body 41. The earth pin 42 is connected and fixed to the second base 55 and a screw (not shown) by an L-shaped metal connection member 43 (attachment fitting). The earth pin 42 is grounded via a lighting fixture.

[Base]
Each of the first base 50 and the second base 55 is made of metal, functions as a heat sink that dissipates heat generated in the LED module 10, and serves as a base for mounting and fixing the LED module 10. Function.

  The first base 50 is a member that constitutes the outline of the heat sink, and is formed in a long shape having substantially the same length as the entire length of the housing 20 as shown in FIG. The first base 50 can be formed, for example, by bending a metal plate such as a galvanized steel plate.

  The first base 50 has a long bottom portion (bottom plate portion), a first wall portion 51 and a second wall portion 52. The first wall portion 51 and the second wall portion 52 are formed at both ends of the first base 50 in the short direction (the width direction of the substrate 11) at the bottom, and (b) and (c) in FIG. As shown in FIG. 3, the both sides of the substrate 11 of the LED module 10 are sandwiched in the short direction of the first base 50. That is, the first wall portion 51 is formed to face one side surface of the substrate 11, and the second wall portion 52 is formed to face the other side surface of the substrate 11. The first wall 51 and the second wall 52 are formed in a partition shape by bending a metal plate constituting the first base 50. As described above, the substrate 11 of the LED module 10 is sandwiched between the first wall portion 51 and the second wall portion 52, and the LED module 10 includes the first wall portion 51 and the second wall portion 52. It is arrange | positioned at the 1st base 50 in the state in which the movement of the transversal direction was controlled.

  As shown in FIGS. 2 and 4, the first wall 51 is formed with a plurality of first protrusions 51 a that protrude from the first wall 51 toward the second wall 52. Similarly, the second wall 52 is formed with a plurality of second protrusions 52 a that protrude from the second wall 52 toward the first wall 51.

  The 1st protrusion part 51a and the 2nd protrusion part 52a are comprised so that it may contact | abut to the 1st surface 11a of the board | substrate 11 in the LED module 10, as shown to (c) of FIG. Specifically, the first protrusion 51 a and the second protrusion 52 a are formed as locking claws that lock on the first surface 11 a of the substrate 11. Thereby, the movement of the substrate 11 in the LED module 10 in the direction perpendicular to the first surface 11a of the substrate 11 is restricted. That is, the LED module 10 is fixed to the first base 50 so as not to protrude upward by the first protrusion 51a and the second protrusion 52a.

  Thus, even after the straight tube LED lamp 1 is attached to the lighting fixture, that is, even when the LED module 10 is positioned on the ground side from the first base 50, the LED The module 10 is prevented from falling off the first base 50 by the first protrusion 51a and the second protrusion 52a. Thus, since the board | substrate 11 is hold | suppressed by the 1st protrusion part 51a and the 2nd protrusion part 52a, it is easy to fix the LED module 10 to the 1st base 50, without using a screw, an adhesive agent, etc. it can.

  In this Embodiment, the 1st protrusion part 51a and the 2nd protrusion part 52a are formed by processing a part of metal plate which comprises the 1st base 50, for example, the 1st which consists of a metal plate. By embossing the wall 51 and the second wall 52, a part of the metal plate can be projected. Thereby, the LED module 10 can be fixed to the first base 50 with a simple configuration without using another member.

  Further, in the first protrusion 51a and the second protrusion 52a in the present embodiment, the first protrusion 51a or the second protrusion is provided so that the substrate 11 is less likely to drop off from the first base 50 due to vibration or impact. The shape of the portion 52a on the first surface 11a side of the substrate 11 is a substantially flat surface facing the first surface 11a. On the other hand, the shape of the first projecting portion 51a or the second projecting portion 52a on the side opposite to the first surface 11a side is when the substrate 11 is inserted into contact with the first projecting portion 51a or the second projecting portion 52a. In order to make it easy to push the substrate 11 into the first protruding portion 51a or the second protruding portion 52a, the substrate 11 is substantially tapered.

  In addition, each of the plurality of first protrusions 51 a and the plurality of second protrusions 52 a is provided at predetermined intervals along the longitudinal direction of the first base 50 and at the same height. Yes. In the present embodiment, ten first protrusions 51 a are provided as shown in FIG. 4, and five first protrusions 51 a are in contact with one substrate 11. Further, six second protrusions 52 a are provided, and three first protrusions 51 a are in contact with one substrate 11.

  In the present embodiment, the second protrusion 52a is provided so as to face the first protrusion 51a. In addition, the second protrusions are disposed at positions facing a pair of first protrusions 51a (most first protrusions) provided at positions closest to both ends of the substrate 11 among the plurality of first protrusions 51a. The part 52a is not provided. That is, both end portions of the substrate 11 are pressed only by the pair of first projecting portions (most first projecting portions) 51a. This is to make it easier to push the LED module 10 into the first base 50 when the LED module 10 (substrate 11) is fixed to the first base 50.

  Here, the endmost first protrusion 51a will be described in detail with reference to FIGS. 6A and 6B. 6A and 6B are enlarged views of the main part of the straight tube LED lamp according to the embodiment of the present invention, each of which is an enlargement of a region (end portion of the first base) surrounded by a broken line A in FIG. It is an enlarged view of the area | region (center part of a 1st base) enclosed with the broken line B of a figure and FIG. 6A and 6B also show the LED module 10.

  As shown in FIG. 6A, at both ends of the first base 50, the first protrusion 51 a (the first end first protrusion) provided at the position closest to the short side of the substrate 11 is the longitudinal direction of the substrate 11. It is provided at the end in the (long direction). The end in the longitudinal direction (end region) of the substrate 11 is the end in the longitudinal direction of the substrate 11 when the length in the longitudinal direction (long side length) of the substrate 11 is L1, as shown in FIG. The region is L1 × 10% or less (including zero) from the edge (short side).

  That is, the first protrusion 51a (the first end first protrusion) provided at the position closest to the short side of the substrate 11 has a distance d1 between the end first protrusion and the short side of the substrate 11 of L1 ×. It is provided to be 10% or less.

  In the present embodiment, as shown in FIG. 6A, the first protrusion 51a (the first end first protrusion) provided at the position closest to the left short side of the substrate 11 in the left LED module 10 is d1 = It is provided at a position of 16 mm.

  In addition, as shown in FIG. 6B, even in the central portion of the first base 50, the first protrusion 51 a (the first end first protrusion) provided at the position closest to the short side of the substrate 11 is the substrate 11. Are provided at each end (L1 × 10% or less) of both ends in the longitudinal direction. That is, even in the portion where the adjacent LED modules 10 (substrate 11) are connected, the first protrusion 51a (the first end first protrusion) provided at the position closest to the short side of the substrate 11 is the endmost. The distances d2 and d3 between the first protrusion and the short side of the substrate 11 are set to be L1 × 10% or less (including zero).

  In the present embodiment, as shown in FIG. 6B, the first protruding portion 51a (the first end protruding portion at the end) provided at the position closest to the right short side of the substrate 11 in one (left) LED module 10 is , D2 = 11 mm. Moreover, the first protrusion 51a (the first end first protrusion) provided at a position closest to the left short side of the substrate 11 in the other (right) LED module 10 is provided at a position of d3 = 16 mm. .

  Thus, the pair of outermost first protrusions provided at positions closest to both ends in the longitudinal direction of the substrate 11 among the plurality of first protrusions 51 a are provided at the positions of the end portions of the substrate 11. ing. Thereby, since the both ends of the board | substrate 11 can be hold | suppressed by a pair of endmost 1st protrusion part, the curvature of the board | substrate 11 can be suppressed. Therefore, the LED module 10 can be continuously fixed to the first base 50 in a flat state.

  In the present embodiment, the second projecting portion 52a is provided to face the first projecting portion 51a, but may be provided at a position between the adjacent first projecting portions 51a. Further, the second protrusions 52a may be provided so as to face the first protrusions 51a at both ends. Moreover, the number of the 1st protrusion parts 51a and the 2nd protrusion parts 52a is not limited to said number, It may be more than the said number and may be less.

  Further, as shown in FIGS. 5B and 5C, the first base 50 is formed with a stepped portion for placing the second base 55 and the reflecting member 70. The step portion forms a space area between the bottom of the first base 50 and the reflecting member 70 (second base 55), and an urging portion 53 described later is provided using the space area. It has been.

  Further, as shown in FIGS. 4 and 5, the first base 50 is formed in the vicinity of the plurality of first cutout portions 51b formed in the vicinity of the first protruding portion 51a and the second protruding portion 52a. And a plurality of second cutout portions 52b. In the present embodiment, each of the first cutout portions 51 b is cut out so as to straddle the first wall portion 51 and the stepped portion, and is formed in a slit shape along the longitudinal direction of the first base 50. Has been. Similarly, each of the second cutout portions 52 b is cut out so as to straddle the second wall portion 52 and the stepped portion, and is formed in a slit shape along the longitudinal direction of the first base 50. . The first cutout portion 51b and the second cutout portion 52b may be formed only in the first wall portion 51 and the second wall portion 52 without being formed in the stepped portion.

  As described above, when the first notch 51 b and the second notch 52 b are provided in the vicinity of the first protrusion 51 a and the second protrusion 52 a, when the substrate 11 is fixed to the first base 50, The peripheral portions of the first protrusion 51a and the second protrusion 52a can be easily elastically deformed. Thereby, the board | substrate 11 can be easily engage | inserted in the 1st protrusion part 51a and the 2nd protrusion part 52a of the 1st base 50, and the board | substrate 11 can be fixed to the 1st base 50 easily.

  Moreover, it is preferable that the board | substrate 11 is arrange | positioned between the 1st notch part 51b (or 2nd notch part 52b) and the 1st protrusion part 51a (or 2nd protrusion part 52a). Hereinafter, this point will be described.

  By forming the first cutout portion 51b (or the second cutout portion 52b), a cutout edge is formed in which there is no plating coating and the base metal of the steel plate is exposed, and the cutout end The withstand voltage in the vicinity of the edge decreases. As a result, the electric charge charged on the first base 50 is likely to be discharged from the vicinity of the notched edge toward the LED module 10, and the possibility that the LED element 12 near the notched edge will be damaged increases. .

  On the other hand, as in the present embodiment, a stepped portion of the first base 50 is provided, and the first notch 51b (or second notch 52b) and the first protrusion 51a (or second protrusion). The first notch 51b (or the second notch 52b) is placed on the second surface 11b side (first base) with respect to the first surface 11a of the substrate 11 by disposing the substrate 11 between the substrate 52 and the portion 52a). It can be located on the bottom side of the base 50). Thereby, since the withstand voltage property of the notch edge vicinity can be improved, it can suppress that the LED element 12 is damaged as mentioned above.

  Further, the first notch 51b (or the second notch 52b) is positioned closer to the second surface 11b than the first surface 11a of the substrate 11 in this manner. Or it can also suppress that the light of the LED module 10 leaks from the 2nd notch part 52b). Thereby, deterioration of the light distribution characteristic of the lamp due to light leakage from the first notch 51b (or the second notch 52b) can be suppressed.

  In the present embodiment, the first notch 51b is not formed at a location corresponding to the first protrusion 51a that holds the end of the substrate 11. This is to increase the mechanical strength around the first protrusion 51 a provided at the end of the substrate 11. Thereby, even if it is a case where the edge part of the board | substrate 11 warps largely, the curvature of the edge part of the board | substrate 11 can be suppressed by the 1st protrusion part 51a.

  Further, as shown in FIG. 5A, an urging portion 53 is formed at the bottom of the first base 50. The urging portion 53 is directed toward the second surface 11b of the substrate 11 in the LED module 10 (that is, in the direction from the second surface 11b of the substrate 11 toward the first surface 11a), the first base 50, the second base. The base 55 and the reflection member 70 are configured to be biased.

  In the present embodiment, the urging portion 53 is formed by processing a part of the metal plate constituting the first base 50, and as shown in FIG. 5 (a), the first base It is configured as a leaf spring formed by cutting and raising 50 plate-like bottom plate portions. The urging portion 53 configured in this manner is configured to abut against the reflecting member 70 and applies a pressure to the reflecting member 70 (second base 55) by urging by the elastic force of the leaf spring. doing. As shown in FIG. 4, eight urging portions 53 are formed, and four urging portions 53 are provided for one LED module 10.

  As described above, the substrate 11 of the LED module 10 is urged by the urging unit 53, and the pressure is applied by the elastic force of the urging unit 53. Thereby, the board | substrate 11 is clamped in the state which received the press by the 1st protrusion part 51a, the 2nd protrusion part 52a, and the urging | biasing part 53. As shown in FIG. That is, since the substrate 11 is pressed from both sides of the first surface 11a and the second surface 11b, the substrate 11 can be firmly held on the first base 50. Further, since the urging portion 53 is formed by processing a part of the first base 50, the holding performance of the substrate 11 can be improved with a simple configuration.

  As shown in FIG. 4, an opening 54 is formed at the bottom of the first base 50, and an attachment member 80 is attached to the opening 54 as shown in FIG. Yes. As shown in FIG. 4, two openings 54 are formed, and one opening 54 corresponds to one LED module 10.

  Further, as shown in FIGS. 5A to 5C, a second base 55 is disposed between the LED module 10 and the first base 50. The second base 55 is an intermediate plate heat sink that is made of a long substrate and is disposed between the first base 50 and the substrate 11 of the LED module 10. On the second base 55, the LED module 10 (substrate 11) is placed. That is, the LED module 10 is disposed on the second base 55 in a state where the second base 55 and the metal film 14 of the LED module 10 are in contact with each other. Thereby, the heat generated in the LED element 12 is transmitted to the metal film 14 via the substrate 11, and is transmitted from the metal film 14 to the second base 55. In the present embodiment, two LED modules 10 are mounted on the second base 55. In addition to the LED module 10, a lighting circuit 90 is also placed on the second base 55.

  The second base 55 is preferably made of a high thermal conductivity material such as metal. In this embodiment, an aluminum plate made of aluminum having a thermal conductivity of 237 [W / m · K] is used. It was. In the present embodiment, the thickness of the second base 55 is configured to be greater than the thickness of the first base 50. Further, the second base 55 is configured to be longer than the length of the first base 50, and both ends of the second base 55 are covered with the power supply base 30 or the ground base 40. It is attached to the feeding base 30 or the grounding base 40.

  The second base 55 is sandwiched between the LED module 10 and the first base 50. By fixing the LED module 10 to the first base 50, the second base 55 is also first. It can be fixed to the base 50. As described above, in the present embodiment, as the heat sink, the first base 50 made of a thin steel plate that can be easily processed is used, and the second base 55 made of aluminum having a high thermal conductivity is used. The module 10 can be easily fixed and a heat sink excellent in heat dissipation can be realized.

  Further, the second base 55 is placed on the step portion of the first base 50 via the reflecting member 70, and the surface (back surface) of the second base 55 on the first base 50 side is the above-mentioned. As described above, it is biased by the elastic force of the biasing portion 53 in the first base 50 via the reflecting member 70.

[connector]
The connector 60 is a conductive wire that electrically connects adjacent LED modules 10, and a mounting portion (connector portion) 61 that is attached to the electrode terminal 15 of the LED module 10 and the LED module 10 via the electrode terminal 15. And a power supply line 62 for passing power supplied to the power supply.

  The mounting portion 61 is provided at both ends of the power supply line 62, and has a substantially rectangular resin molded portion configured to be fitted to the electrode terminal (socket) 15 of the LED module 10, and the resin molded portion. And a conductive portion provided on the surface. Further, the power supply line 62 can be configured by a lead wire called a harness. In the present embodiment, the connector 60 is configured to pass DC power, and the power supply line 62 includes a high voltage side supply line and a low voltage side supply line.

  In the present embodiment, two long LED modules 10 are arranged in the housing 20. The LED module 10 disposed on the power supply base 30 side and the lighting circuit 90 are electrically connected by a connector 60, and DC power is supplied from the lighting circuit 90 to the LED module 10 via the connector 60. . As shown in FIG. 6B, adjacent LED modules 10 are also electrically connected by a connector 60, and power is supplied from one LED module 10 to the other LED module via the connector 60.

[Reflection member]
As shown in FIG. 2, the reflecting member 70 is configured to reflect light emitted from the LED module 10 in a certain direction in order to improve the light extraction efficiency of the lamp. The reflecting member 70 is made of a material having electrical insulating properties and light reflecting properties. For example, the reflecting member 70 can be made by processing an insulating reflecting sheet made of a biaxially stretched polyester (PET) film or the like.

  In the present embodiment, the reflecting member 70 is processed to have a U-shaped cross section, and a first reflecting surface portion that is in surface contact with the inner surface of the first wall portion 51 in the first base 50 and a second wall portion 52. And a second reflecting surface portion that is in surface contact with the inner surface. Thereby, the light from the LED module 10 is reflected by the first reflection surface portion and the second reflection surface portion of the reflection member 70. In addition, when the reflective member 70 is arrange | positioned inside the 1st base 50, the location corresponding to the 1st protrusion part 51a and the 2nd protrusion part 52a of the 1st base 50 in the reflection member 70 is notched. The first protruding portion 51a and the second protruding portion 52a are configured to protrude from the first reflecting surface portion and the second reflecting portion of the reflecting member 70.

  In addition, the reflecting member 70 is disposed between the first base 50 and the second base 55. Specifically, the reflecting member 70 is placed on the stepped portion of the first base 50, and the surface of the reflecting member 70 on the first base 50 side is the elastic force of the biasing portion 53 of the first base 50. Is energized by.

[Mounting member]
As shown in FIG. 5A, an attachment member 80 is attached to an opening formed at the bottom of the first base 50. The attachment member 80 is attached to the first base 50 in a state where the first base 50 is movable with respect to the longitudinal direction of the first base 50.

  The attachment member 80 includes a hook piece 81 that engages with an opening 54 formed at the bottom of the first base 50 and a recess 82 formed on the inner surface side of the housing 20.

  The hooking piece 81 is formed with a gap from the edge of the opening 54 at the bottom of the first base 50 in the longitudinal direction of the first base 50, and engages with the edge of the opening 54. Configured. Specifically, the hooking piece 81 is formed in a hook shape so as to be hooked on the surface of the bottom of the first base 50 on the side of the housing 20. The concave portion 82 of the attachment member 80 is filled with an adhesive such as silicone resin, and the attachment member 80 and the housing 20 are bonded and fixed by this adhesive.

  As described above, the attachment member 80 is bonded and fixed to the housing 20, but is movable with respect to the first base 50, and the attachment member 80 slides with respect to the first base 50. Is configured to do. In the present embodiment, the engaging piece 81 of the attachment member 80 and the first base 50 are configured to slide. The attachment members 80 are attached to a part of the first base 50, and two attachment members 80 are attached to the first base 50 in the present embodiment.

[Lighting circuit]
The lighting circuit 90 is an LED lighting circuit (LED control circuit) for controlling the lighting state of the LED element 12 in the LED module 10, and is used for energizing the LED element 12 by rectifying input DC power. A circuit for outputting a desired voltage is provided. As shown in FIG. 2, in the present embodiment, the lighting circuit 90 includes a circuit board 90a and a circuit element group 90b composed of a plurality of circuit elements mounted on the circuit board 90a.

  The circuit board 90a is a printed board on which a predetermined wiring pattern (not shown) for wiring the mounted electronic components is formed. For example, a glass epoxy board or the like can be used.

  The circuit element group 90b is configured by a plurality of circuit elements for lighting the LED elements 12 of the LED module 10. The circuit element group 90b includes, for example, a diode bridge circuit (rectifier circuit) that rectifies the input AC power in full wave, a fuse element, and the like. As the circuit element group 90b, a resistor, a capacitor, a coil, a diode, a transistor, or the like may be used as necessary.

  The lighting circuit 90 includes an input socket 90c (input unit) that receives DC power from a pair of power supply pins 32 provided on the power supply cap 30, and an output socket 90d (output unit) that outputs DC power to the LED module 10. Output section). An input connector terminal electrically connected to the pair of power supply pins 32 is inserted into the input socket 90c through lead wires. Further, an output connector terminal electrically connected to the LED module 10 is inserted into the output socket 90d through a lead wire. The input socket 90c and the output socket 90d are electrically connected to the circuit elements of the circuit element group 90b by a wiring pattern formed on the circuit board 90a.

  The lighting circuit 90 configured as described above is placed on the second base 55 and covered with the lighting circuit cover 91. The lighting circuit cover 91 is made of an insulating resin and protects the lighting circuit 90.

  In the straight tube type LED lamp 1 configured as described above, the LED module 10, the first base 50, the second base 55, the connector 60, the reflecting member 70, the mounting member 80, the lighting circuit 90, and the lighting circuit cover 91. The power supply pin 32 and the ground pin 42 are integrated as a long light source module. That is, the light source module in which the constituent members are integrated is in a state where the electrical and physical connection between the constituent members is completed. Then, after the light source module is inserted into the housing 20, the power supply base body 31 and the ground base body 41 are attached to both ends of the housing 20, thereby completing the straight tube LED lamp 1.

  Next, the manufacturing method of the straight tube | pipe type LED lamp 1 which concerns on embodiment of this invention is demonstrated. First, a method for assembling a light source module in the straight tube LED lamp 1 according to the present embodiment will be described with reference to FIG. FIG. 7 is a diagram showing an assembly process of the light source module in the straight tube LED lamp according to the embodiment of the present invention, and (a) is a cross-sectional view taken along the line AA ′ of FIG. It is a corresponding figure, (b) is a figure corresponding to sectional drawing in the BB 'line of (a) of FIG.

  First, the attachment member 80 is attached to the first base 50 as shown in FIGS. Thereafter, as shown in FIGS. 7A and 7B, the reflecting member 70 is disposed inside the first base 50. Thereafter, as shown in FIGS. 7A and 7B, the second base 55 is disposed on the bottom of the reflecting member 70. 7B and 7C, the reflecting member 70 and the second base 55 are arranged so as to bias the biasing portion 53. However, the reflecting member 70 and the second base 55 are arranged. When arranging 55, the urging portion 53 may not be urged.

  Next, the LED module 10 is arranged on the first base 50. At this time, as shown to (a) and (b) of FIG.7 (D), one edge part of the width direction of the board | substrate 11 of the LED module 10 is pressed against the 2nd base 55, and a 1st base The one end portion of the substrate 11 is pushed in the direction indicated by the arrow in the drawing so that the one end portion enters between the first projecting portion 51 a of 50 and the main surface of the second base 55. At this time, the substrate 11 is pushed so that the urging portion 53 is elastically deformed.

  Subsequently, as shown in (a) and (b) of FIG. 7 (E), the other end in the width direction of the substrate 11 is pushed in from the top of the second protrusion 52a in the direction indicated by the arrow in the drawing. Then, the other end of the substrate 11 is inserted between the second projecting portion 52 a and the second base 55 so as to spread the second projecting portion 52 a outward. At this time, since the urging portion 53 is provided on the first base 50, the other end is inserted between the second projecting portion 52a and the second base 55, and at the same time, the urging portion 53 is inserted. The substrate 11 is brought into contact with the second projecting portion 52a by pressing from below.

  Thereby, as shown to (a) and (b) of FIG.7 (F), the both ends of the board | substrate 11 of the LED module 10 are made into the 1st protrusion part 51a, the 2nd protrusion part 52a, and the 2nd base 55. Can be sandwiched between.

  In the present embodiment, since the first notch 51b and the second notch 52b are provided around the first protrusion 51a and the second protrusion 52a, the first protrusion 51a and the second notch 52b are provided. The protrusion 52a can be easily elastically deformed. Thereby, the both ends of the board | substrate 11 can be easily inserted between the 1st protrusion part 51a or the 2nd protrusion part 52a, and the 2nd base 55. FIG.

  After this, the lighting circuit 90 is disposed on the second base 55, and the LED modules 10 and the LED module 10 and the lighting circuit 90 are electrically connected by the connector 60, and the power supply pin 32 and the lighting circuit 90 are connected. Make electrical connection with Thereafter, the lighting circuit cover 91 is attached to the first base 50 so as to cover the lighting circuit 90. Thereby, a light source module can be assembled.

  Thereafter, after the light source module is inserted into the housing 20, the power supply cap 30 and the grounding cap 40 are attached to both ends of the housing 20. Here, a detailed configuration around the power supply base 30 and the ground base 40 will be described with reference to FIGS. 8 and 9.

  Here, FIG. 8 is a perspective view showing a configuration around the power supply base in the straight tube LED lamp according to the embodiment of the present invention, and (a) is an attachment of the second base and the power supply base. In order to make the state easy to understand, the lighting circuit, the lighting circuit cover, and the housing are omitted, and (b) is a diagram showing the lighting circuit, the lighting circuit cover, and the housing.

  FIG. 9 is a perspective view showing the configuration around the grounding base in the straight tube LED lamp according to the embodiment of the present invention. FIG. 9A shows the first grounding base body and the second grounding body. It is a figure which shows the state before fixing a base body part, (b) is a figure which shows the state after fixing a base body part for 1st earth | ground and a base body part for 2nd earth | ground. In FIG. 9B, the housing is omitted.

  As shown in FIG. 8A, in the present embodiment, the second base 55 is configured such that the end on the power supply base 30 side in the longitudinal direction of the second base 55 is movable with respect to the power supply base 30. It is attached to the power supply cap 30 so as to be at the end. Specifically, a hole 55a is provided at the end of the second base 55 on the power supply base 30 side, and the screw receiving portion 33 of the power supply base 30 inserted through the hole 55a is a hole 55a. It is configured to be able to move within.

  In the present embodiment, the opening diameter (length) in the longitudinal direction (tube axis direction) of the second base 55 in the hole 55a is larger than the diameter (length) of the screw receiving portion 33 in the tube axis direction. The opening diameter (length) in the width direction of the second base 55 in the hole 55a is substantially the same as the diameter (length) in the width direction of the second base 55 of the screw receiving portion 33. It is configured to be the same. Thereby, the 2nd base 55 can be made to move with respect to the nozzle | cap | die 30 for electric power feeding. Since the second base 55 is slidable with respect to the mounting member 80 as described above, the light source module remains movable in the housing 20 and is connected to the power supply base 30 and the ground. It is held by the base 40 and the housing 20.

  Thereby, compared with the case where the back surface whole surface of the 2nd base 55 and the housing | casing 20 are fixed with an adhesive agent, it can suppress that curvature generate | occur | produces in the housing | casing 20. FIG.

  As shown in FIGS. 9A and 9B, in the present embodiment, the end of the second base 55 on the ground base 40 side in the longitudinal direction of the second base 55 is the ground base. 40 is attached to the grounding cap 40 so as to be movable. Specifically, the end of the second base 55 on the ground base 40 side is fixed to the second ground base body 41b of the ground base 40 with screws. Further, a hole is provided at the end of the second base 55 on the ground base 40 side, and the second base 55 is also inserted by inserting a screw receiving portion of the ground base 40 into the hole. Is fixed to the grounding cap 40.

  As described above, the straight tube LED lamp 1 according to the present embodiment can be manufactured.

  Next, the operation and effect of the straight tube LED lamp 1 according to the present embodiment will be described including the background to the present invention.

  It has been found that when a long substrate having a large aspect ratio is used as the substrate 11 on which the LED element 12 is mounted, the substrate 11 is warped. In particular, it was found that when a non-ceramic substrate is used as the substrate 11, the substrate 11 warps greatly. For example, when a double-sided substrate in which metal is formed on both sides of a resin substrate as in the present embodiment is used as the substrate 11, it has been found that both end portions in the longitudinal direction of the substrate 11 are greatly warped upward. In the case where a ceramic substrate was used as the substrate 11, even when the substrate 11 was lengthened in the same manner, almost no warping occurred. Thus, when the board | substrate 11 warps, the position of the LED element 12 will fluctuate and it will become impossible to obtain a desired light distribution characteristic as a lamp.

  The inventors of the present application have intensively studied the cause of warping of the substrate 11, and due to the difference in the coefficient of linear expansion between the substrate 11 and the metal (wiring, etc.) formed on the surface of the substrate 11, It has been found that the amount of elongation of the substrate 11 differs from that of the metal due to the temperature rise during lamp operation, and as a result, both ends of the substrate 11 warp.

  In particular, when the non-ceramic substrate has a large aspect ratio (38.6 or more), it has been found that both ends of the substrate 11 are significantly warped and the light distribution characteristics are deteriorated. Further, when the substrate 11 which is a resin substrate having the wiring 13 formed on one surface and the metal film 14 formed on the other surface is used as in the present embodiment, both ends of the substrate 11 are directed upward. I also knew it would warp.

  In this case, it is conceivable to fasten and fix the substrate 11 and the base on which the LED module 10 is placed using screws. However, when the board 11 and the base are fixed using screws, the number of parts increases and the manufacturing process becomes complicated, or the screws loosen due to vibration and the LED module 10 is detached from the base.

  It is also conceivable to apply an adhesive to the entire back surface of the substrate 11 and fix it to the base. However, fixing the substrate 11 and the base using an adhesive not only increases the number of parts and the adhesive application process, complicating the manufacturing process, but also causes the adhesive to be affected by temperature, vibration, etc. during lamp lighting. The LED module may come off and the LED module may come off the base.

  The present invention has been made on the basis of such new knowledge. As a result of trial and error, the following configuration is adopted, and the LED module is based on a flat state with a simple configuration. I found that I can continue to fix.

  That is, according to the straight tube LED lamp 1 according to the present embodiment, as shown in FIGS. 6A and 6B, a pair of first protrusions 51a ( Each of the outermost first protrusions is provided at a position corresponding to the longitudinal end of the substrate 11. That is, the 1st protrusion part 51a is provided in the one edge part of the longitudinal direction of the board | substrate 11, and the other edge part. Thereby, the both ends of the board | substrate 11 can be hold | suppressed by a pair of 1st protrusion part 51a (endmost 1st protrusion part). As a result, even if the amount of elongation of both the substrate 11 and the metal (wiring 13 and metal film 14) differs due to the temperature rise during lamp lighting, both ends of the substrate 11 are held down by the first protrusions 51a. Therefore, the warp of the substrate 11 can be suppressed. Therefore, the LED module 10 can be kept fixed to the first base 50 in a flat state even while the lamp is lit. Therefore, a lamp having desired light distribution characteristics can be realized.

  Further, in the present embodiment, the pair of first protrusions 51 a (most first protrusions) provided at positions closest to both short sides of the substrate 11 are L1 (from the both end edges in the longitudinal direction of the substrate 11 ( It is preferable to be provided in a region (longitudinal end region of the substrate 11) which is equal to or less than the length of the long side) × 10%. Thus, based on the experimental results, the inventors of the present application have found that the warpage of the substrate 11 can be suppressed by providing the first protrusion 51a at a position L1 × 10% or less from the short side of the substrate 11. Could get.

  Next, the illuminating device 2 which concerns on embodiment of this invention is demonstrated using FIG. FIG. 10 is a schematic perspective view of the illumination device according to the embodiment of the present invention.

  As shown in FIG. 10, the illuminating device 2 which concerns on embodiment of this invention is a base light, Comprising: The straight tube | pipe type LED lamp 1 and the lighting fixture 100 are provided.

  The straight tube LED lamp 1 is the straight tube LED lamp 1 according to the above-described embodiment, and is used as a light source for illumination of the lighting device 2. In the present embodiment, as shown in FIG. 10, two straight tube LED lamps 1 are used.

  The luminaire 100 includes a pair of sockets 110 that are electrically connected to the straight tube LED lamp 1 and holds the straight tube LED lamp 1, and a device body 120 to which the socket 110 is attached. The instrument main body 120 can be formed by, for example, pressing an aluminum steel plate. Moreover, the inner surface of the instrument main body 120 is a reflecting surface that reflects light emitted from the straight tube LED lamp 1 in a predetermined direction (for example, downward).

  The luminaire 100 configured as described above is mounted on a ceiling or the like via a fixture. The lighting fixture 100 may incorporate a circuit for controlling the lighting of the straight tube LED lamp 1 or the like. Moreover, the cover member may be provided so that a straight tube | pipe type LED lamp may be covered.

  As described above, the straight tube LED lamp according to the embodiment of the present invention can be realized as an illumination device or the like.

(Modification)
Next, a modification of the straight tube LED lamp according to the above embodiment will be described with reference to the drawings.

(Modification 1)
First, Modification 1 of the embodiment of the present invention will be described with reference to FIG. FIG. 11 is an enlarged view of a main part of a straight tube LED lamp according to the first modification of the embodiment of the present invention, and shows an enlarged view of the central part of the first base.

  As shown in FIG. 11, in the present modification, the first protrusion 51 a (the first end first protrusion) provided at the position closest to the short side of the substrate 11 is provided so as to straddle the adjacent LED modules 10. It has been. That is, one first projecting portion 51a is provided so as to straddle the connecting portion of two adjacent substrates 11, and one first projecting portion 51a is a presser common to two adjacent substrates 11. It has become.

  As described above, according to the present modification, the same effects as those of the above-described embodiment can be obtained. Furthermore, according to the present modification, the warpage of the end portions of the two substrates 11 can be suppressed by the single first protrusion 51a.

(Modification 2)
Next, Modification 2 of the embodiment of the present invention will be described with reference to FIGS. 12A and 12B. 12A and 12B are enlarged views of main parts of a straight tube type LED lamp according to Modification 2 of the embodiment of the present invention, and are an enlarged view around the end of the first base and the first base, respectively. The enlarged view of the center part periphery is shown.

  As shown in FIG. 12A, in the present modification, the first protrusion 51a (the first end first protrusion) and the first protrusion provided at positions closest to the short side of the substrate 11 at both ends of the first base 50 are shown. Two projecting portions 52 a (the outermost second projecting portion) are provided at the end of the substrate 11 in the longitudinal direction. That is, one end in the longitudinal direction of the substrate 11 is not pressed only by the first protrusion 51a but is also pressed by the second protrusion 52a.

  Also, as shown in FIG. 12B, in this modification, even in the central portion of the first base 50, the first protrusion 51a (the first end first protrusion) provided at the position closest to the short side of the substrate 11 ) And the second projecting portion 52a (the endmost second projecting portion) are provided at the end of the substrate 11 in the longitudinal direction. That is, even in a portion to which the adjacent LED module 10 (substrate 11) is connected, one end portion in the longitudinal direction of the substrate 11 is not pressed only by the first protrusion 51a, but the second protrusion It is pressed by 52a.

  As described above, according to the present modification, the end on the short side of the substrate 11 can be pressed by the two protrusions of the first protrusion 51a and the second protrusion 52a. Further, warping of the end portion of the substrate 11 can be further suppressed.

  In the present modification, the first projecting portion 51a and the second projecting portion 52a are provided at opposing positions, but the present invention is not limited to this.

(Modification 3)
Next, a third modification of the embodiment of the present invention will be described with reference to FIGS. 13A and 13B. FIGS. 13A and 13B are enlarged views of main parts of a straight tube LED lamp according to a third modification of the embodiment of the present invention, and are an enlarged view around the end of the first base and the first base, respectively. The enlarged view of the center part periphery is shown. 13A and 13B are views seen through the LED module 10 (substrate 11).

  As shown in FIG. 13A, in the present modification, the first protrusion 51a (the first end first protrusion) provided at a position corresponding to the end of the substrate 11 at both ends on the short side of the first base 50 is provided. The first notch 51b is also formed near the portion.

  Further, as shown in FIG. 13B, in the present modification, the first projecting portion 51a (the first end projecting portion at the extreme end) provided at the position corresponding to the end portion of the substrate 11 also in the central portion of the first base 50. ) Is also formed in the vicinity of the first notch 51b.

  As described above, according to the present modification, the same effects as those of the above-described embodiment can be obtained. Furthermore, according to this modification, since the first notch 51b is provided in the vicinity of the first protrusion 51a provided at the position corresponding to the end of the substrate 11, the substrate 11 is attached to the first base. When fixing to 50, the peripheral part of the 1st protrusion part 51a can be easily elastically deformed. Thereby, since the board | substrate 11 can be easily engage | inserted in the 1st protrusion part 51a of the 1st base 50, the board | substrate 11 can be fixed to the 1st base 50 easily.

  This modification can also be applied to Modifications 1 and 2.

(Other)
As described above, the lamp and the lighting device according to the present invention have been described based on the embodiment and the modification. However, the present invention is not limited to the above embodiment and the modification.

  For example, in the above embodiment, the case where the first protrusion 51 a is provided at the end of the substrate 11 has been described, but only the second protrusion 52 a may be provided at the end of the substrate 11. Moreover, you may comprise so that the one edge part of the longitudinal direction of the one board | substrate 11 may be hold | suppressed by the 1st protrusion part 51a, and the other edge part may be pressed by the 2nd protrusion part 52a.

  Moreover, in said embodiment, although the protrusion amount of the 1st protrusion part 51a and the 2nd protrusion part 52a is made the same, the protrusion amount of the 1st protrusion part 51a and the protrusion amount of the 2nd protrusion part 52a differ. You may comprise. In this case, it is preferable to increase the protruding amount of the protruding portion (the first protruding portion 51a in FIG. 4) provided on the end portion of the substrate 11. Thereby, the curvature of the edge part of the board | substrate 11 can be suppressed further. In addition, when the LED module 10 is fixed to the first base 50, the protruding amount of the protruding portion corresponding to the end portion of the both ends of the substrate 11 in the width direction that is pushed into the protruding portion from the rear is large. It is preferable to reduce the thickness. For example, in FIG. 7, it is preferable that the protrusion amount of the second protrusion portion 52a is configured to be smaller than the protrusion amount of the first protrusion portion 51a. Accordingly, the substrate 11 can be easily fixed to the first base 50 by the second protrusion 52a having a small protrusion while maintaining the holding force to the substrate 11 by the first protrusion 51a having a large protrusion. Can be.

  In the above embodiment, the first notch 51b and the second notch 52b are provided by forming notches in both the first wall 51 and the second wall 52. However, the present invention is not limited to this. Absent. For example, the cutout portion may be formed only in one of the first wall portion 51 and the second wall portion 52.

  In the above embodiment, the size (slit width and slit length) of the opening (slit) in the first cutout portion 51b is the same as the size of the opening in the second cutout portion 52b. Not exclusively. For example, you may comprise so that the magnitude | size of the opening in the 1st notch part 51b and the magnitude | size of the opening in the 2nd notch part 52b may differ. In this case, when the LED module 10 is fixed to the first base 50, it is formed in the vicinity of the protruding portion corresponding to the end portion that is pushed into the protruding portion from the both ends in the width direction of the substrate 11. It is preferable to increase the size of the opening in the notch portion. For example, in FIG. 7, it is preferable that the size of the opening in the second cutout portion 52b is larger than the size of the opening in the first cutout portion 51b. Accordingly, the portion near the second protrusion 52a is more easily elastically deformed than the portion near the first protrusion 51a, so that the substrate 11 can be more easily fixed to the first base 50. it can. Note that the size of the opening of the notch can be changed, for example, by adjusting the slit width or the slit length.

  Moreover, in said embodiment, although the 1st notch part 51b and the 2nd notch part 52b were made into slit-shaped opening, it is not restricted to this. For example, the first cutout portion 51b and the second cutout portion 52b may be formed by cutting out so as not to penetrate the first wall portion 51 and the second wall portion 52. Even if comprised in this way, the elastic force of the 1st protrusion part 51a and the 2nd protrusion part 52a can be enlarged.

  In the above embodiment, when the substrate 11 is fixed to the first base 50, as shown in FIG. 7, one end portion in the width direction of the substrate 11 on the first projecting portion 51a side is the first projecting portion. After being inserted between the portion 51 a and the second base 55, the other end in the width direction of the substrate 11 on the second protrusion 52 a side is inserted between the second protrusion 52 a and the second base 55. However, the order may be reversed. Alternatively, both end portions in the width direction of the substrate 11 may be simultaneously inserted between the first protrusion 51 a and the second protrusion 52 a and the second base 55.

  In the above embodiment, the feeding base 30 is a movable end and the grounding base 40 is a fixed end. However, the present invention is not limited to this. For example, the power supply base 30 may be configured as a fixed end and the ground base 40 may be configured as a movable end, or both the power supply base 30 and the ground base 40 may be configured as movable ends. It doesn't matter. Accordingly, the light source module can be held by the power supply base 30, the ground base 40, and the housing 20 while the light source module is kept movable in the housing 20. Note that both the feeding base 30 and the grounding base 40 can be fixed ends. In this case, the light source module cannot be moved in the housing 20, but the light source module can be firmly held in the housing 20.

  In the above-described embodiment, the one-side power feeding method in which power is fed from only one side of the power feeding base 30 is used. However, a both-side power feeding method in which power feeding is performed from both sides may be employed. Moreover, even if it is a one side electric power feeding system like this Embodiment, you may comprise a nozzle | cap | die part, without using the base 40 for earth | ground as a non-power feeding side nozzle | cap | die. In this case, instead of the grounding base 40, a mounting base having a structure that can be attached to the socket of the lighting fixture may be provided at the location of the grounding base 40. For example, the grounding cap 40 in the present embodiment can be used as it is, and the ground pin 42 can be configured not to be grounded.

  In the above-described embodiment, the power supply base 30 and the ground base 40 are split-type bases that are divided into two parts, but they may be non-partitioned bases that are not divided. The non-divided die can be formed by resin molding, for example.

  In the above embodiment, the power supply base 30 is an L-shaped base having a pair of L-shaped power supply pins 32, but may be a G13 base. Similarly, the grounding base 40 may be a G13 base. As described above, a 1-pin to 2-pin base structure in which one of the two bases has one pin (1 pin) and the other has two pins (2 pins) may be used. It is good also as a 2 pin-2 pin base structure used as this pin (2 pins).

  In the above embodiment, the power supply cap 30 is configured to receive DC power, but may be configured to receive AC power. When the power supply cap 30 receives AC power, the lighting circuit 90 includes a circuit that converts AC power into DC power.

  In the above embodiment, the LED module 10 is an SMD type LED module using the packaged LED element 12, but is not limited thereto. For example, it may be a COB (Chip On Board) type LED module in which a plurality of LED chips are directly mounted on the substrate 11 and the plurality of LED chips are collectively sealed with a phosphor-containing resin.

  Further, in the above embodiment, the LED module 10 (LED element 12) is configured to emit white light by the blue LED chip and the yellow phosphor, but is not limited thereto. For example, a phosphor-containing resin containing a red phosphor and a green phosphor may be used so that white light is emitted by combining this with a blue LED. Moreover, you may use the LED chip which light-emits colors other than blue.

  In the above embodiment, the LED is exemplified as the semiconductor light emitting element. However, an EL element such as a semiconductor laser, an organic EL (Electro Luminescence) or an inorganic EL, or other solid light emitting element may be used.

  In addition, the embodiment can be realized by arbitrarily combining the components and functions in each embodiment without departing from the scope of the present invention, or a form obtained by subjecting each embodiment to various modifications conceived by those skilled in the art. Forms are also included in the present invention.

  The present invention is useful as a lamp using a light emitting element such as an LED, for example, a straight tube lamp, and can be widely used in an illumination device including the lamp.

DESCRIPTION OF SYMBOLS 1 Straight tube type LED lamp 2 Illuminating device 10 LED module 11 Board | substrate 11a 1st surface 11b 2nd surface 12 LED element 12a Package 12b LED chip 12c Sealing member 13 Wiring 14 Metal film 15 Electrode terminal 20 Housing | casing 30 Power supply base 31 Power supply base body 31a First power supply base body part 31b Second power supply base body part 32 Power supply pin 33 Screw receiving part 40 Grounding base 41 Grounding base body 41a First grounding base body part 41b Second grounding base part Main body 42 Earth pin 43 Connection member 50 First base 51 First wall 51a First protrusion 51b First notch 52 Second wall 52a Second protrusion 52b Second notch 53 Energizing part 54 Opening 55 2nd base 55a Hole 60 Connector 61 Mounting part 62 Power supply line 70 Reflective member 80 Ri attached members 81 lock plate 82 recess 90 lighting circuit 90a circuit board 90b circuit element group 90c input socket 90d output sockets 91 lighting circuit cover 100 luminaires 110 socket 120 instrument body

Claims (12)

A light-emitting module having a plurality of light-emitting elements mounted on a first surface, which is a long substrate on which wiring of a predetermined shape is formed, and the wiring of the substrate;
A long casing for housing the light emitting module;
A first base housed in the housing and on which the light emitting module is disposed,
The first base includes a first wall portion and a second wall portion sandwiching both lateral sides of the substrate in a short direction, and a plurality of first protrusions protruding from the first wall portion toward the second wall portion. And a plurality of second projecting portions projecting from the second wall portion toward the first wall portion,
The plurality of first protrusions and the plurality of second protrusions are in contact with the first surface of the substrate,
At one end of the substrate in the longitudinal direction, at least one of the first protrusion and the second protrusion is provided,
The lamp is provided with at least one of the first protrusion and the second protrusion at the other end in the longitudinal direction of the substrate. When the length in the longitudinal direction of the substrate is L1,
The lamp according to claim 1, wherein the one end and the other end are regions of L1 × 10% or less from an edge in a longitudinal direction of the substrate. When the length in the short direction of the substrate is L2,
The lamp according to claim 2, wherein L1 / L2 ≧ 38.6. The lamp according to claim 1, wherein a linear expansion coefficient of the wiring is larger than a linear expansion coefficient of the substrate. The lamp according to any one of claims 1 to 4, wherein the substrate is a resin substrate made of a resin. The lamp according to claim 1, wherein the substrate further includes a metal film formed on a second surface opposite to the first surface. The lamp according to claim 6, wherein an area of the metal film is larger than an area of the wiring. A plurality of the light emitting modules are provided,
The plurality of light emitting modules are arranged so that the longitudinal direction of each of the substrates is along the longitudinal direction of the housing,
The lamp according to claim 1, wherein at least one of the first protrusion and the second protrusion is provided so as to straddle the adjacent light emitting modules. The lamp according to any one of claims 1 to 8, wherein the first base further includes a biasing portion that biases toward a second surface that is a surface opposite to the first surface. The said 1st wall part and the said 2nd wall part have a notch part formed in the vicinity of at least any one of the said 1st protrusion part and the said 2nd protrusion part. Lamp described in. And a second base made of metal disposed between the first base and the light emitting module,
The lamp according to any one of claims 1 to 10, wherein the light emitting module is placed on the second base. An illumination device comprising the lamp according to any one of claims 1 to 11.

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