JP6112444B2 - Illumination light source and illumination device - Google Patents

Description

  The present invention relates to an illumination light source and an illumination device, and more particularly to a straight tube type LED lamp using a light emitting diode (LED).

  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 LED lamp is covered with, for example, a long translucent cover (straight tube or the like), a pair of caps provided at both ends in the longitudinal direction of the translucent cover, and the translucent cover. A base, a plurality of LED modules arranged adjacent to each other on the base, a lighting circuit for lighting the LED module, and the like.

  Each LED module includes a substrate, a plurality of LEDs mounted on the substrate, metal wiring patterned on the substrate, connection terminals (connectors) provided on the substrate, and the like.

  In the plurality of LED modules arranged adjacent to each other on the base, the connection terminals are electrically connected by a connector line. In general, the length of the connector wire is longer than the length between the connection terminals in consideration of mounting workability, etc., so when the connector wire is attached to the connection terminal, a part of the connector wire is bent. Or may float and protrude above the substrate. In this case, the light of the LED is blocked by the connector line, becomes a shadow of the connector line, and causes a problem in appearance quality. There is also a problem that the light distribution characteristics of the LED lamp deteriorate.

  The present invention has been made to solve such a problem, and an object thereof is to provide an illumination light source and an illumination device that suppress deterioration of light distribution characteristics due to shadows of connector wires.

  In order to achieve the above object, an aspect of the illumination light source according to the present invention includes a long translucent cover, a long base covered with the translucent cover, and the base. A plurality of substrates disposed adjacent to each other, a light emitting element disposed on each of the plurality of substrates, a connection terminal provided on each of the plurality of substrates, and the adjacent substrate A connector wire that electrically connects each of the connection terminals, and the connector wire is deformed into a predetermined shape so that the light from the light emitting element is not blocked by the connector wire. .

  In the aspect of the illumination light source according to the present invention, the connector line may be deformed into the predetermined shape before being connected to the connection terminal.

  In the aspect of the illumination light source according to the present invention, the connector line may be deformed into a predetermined shape so that a height from the substrate is constant.

  In the aspect of the illumination light source according to the present invention, the connector line may be deformed so as to be bent or curved in a horizontal direction with respect to the main surface of the substrate.

  In the aspect of the illumination light source according to the present invention, the connector line may be in contact with the surface of the substrate.

  In the aspect of the illumination light source according to the present invention, the connector line may be fixed to the substrate with an adhesive or a tape.

  In the aspect of the illumination light source according to the present invention, the translucent cover may be a long cylindrical housing, and the base may be housed in the housing.

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

  According to the present invention, it is possible to suppress the deterioration of the light distribution characteristics due to the shadow of the connector line.

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. FIG. 3 is an exploded plan view of the straight tube LED lamp according to the embodiment of the present invention. FIG. 4 is a perspective view of the LED module according to the embodiment of the present invention. FIG. 5A is a perspective view (a state where the first power supply base body is removed) showing the peripheral configuration of the power supply base in the straight tube LED lamp according to the embodiment of the present invention. FIG. 5B is an exploded perspective view showing a peripheral configuration of the power feeding base in the straight tube LED lamp according to the embodiment of the present invention. FIG. 6A is a perspective view showing a peripheral configuration of a non-power supply base in the straight tube LED lamp according to the embodiment of the present invention. FIG. 6B is a perspective view of the non-power supply base in the straight tube LED lamp according to the embodiment of the present invention (a state where the first non-power supply base body is removed). FIG. 7 is a partially enlarged side view of the straight tube LED lamp according to the embodiment of the present invention. FIG. 8A is a cross-sectional view of a straight tube LED lamp according to an embodiment of the present invention taken along line A-A ′ of FIG. 7. FIG. 8B is a cross-sectional view of the straight tube LED lamp according to the embodiment of the present invention taken along line B-B ′ of FIG. 7. FIG. 8C is a cross-sectional view of the straight tube LED lamp according to the embodiment of the present invention taken along line C-C ′ of FIG. 7. FIG. 9 is an enlarged view of a main part of the straight tube LED lamp according to the embodiment of the present invention, (a) is a plan view, and (b) is a cross-sectional view taken along the line DD ′ of (a). . FIG. 10 is a diagram for explaining a method of forming a connector line in the straight tube LED lamp according to the embodiment of the present invention. FIG. 11 is a diagram for explaining a form of forming the connector wire at the lamp end in the straight tube LED lamp according to the embodiment of the present invention. FIG. 12A is an enlarged perspective view of a main part around a module in a straight tube LED lamp according to a first modification of the present invention. FIG. 12B is an enlarged perspective view of a main part around a lighting circuit in a straight tube LED lamp according to a first modification of the present invention. FIG. 13 is an enlarged perspective view of a main part between modules in a straight tube LED lamp according to a second modification of the present invention. FIG. 14 is a schematic perspective view of the illumination device according to the embodiment of the present invention. FIG. 15 is a diagram showing a configuration of a modified example of the first base in the straight tube lamp according to the embodiment of the present invention. FIG. 16 is a perspective view showing a configuration of a modification of the LED module in the straight tube lamp according to the embodiment of the present invention.

  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. 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.

  In the following embodiments, a straight tube LED lamp will be described as an example of an illumination light source.

[Entire configuration of the lamp]
First, the structure of the straight tube | pipe type LED lamp 1 which concerns on embodiment of this invention is demonstrated using FIGS. 1-3. FIG. 1 is a schematic perspective view of a straight tube LED lamp according to the present embodiment. FIG. 2 is an exploded perspective view of the straight tube LED lamp according to the present embodiment. FIG. 3 is an exploded plan view of the straight tube LED lamp according to the present embodiment.

  A straight tube LED lamp 1 according to the present embodiment is a straight tube LED lamp that replaces a conventional straight tube fluorescent lamp. For example, the straight tube LED lamp 1 has a total length of 40, which is the same as a straight tube 40 fluorescent lamp. This is a straight tube LED lamp.

  As shown in FIG. 1, the straight tube LED lamp 1 includes an LED module 10, a long casing 20 that houses the LED module 10, and 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 first base provided in the section and a non-power supply base (non-power supply side base) that is a second base provided at the other end in the longitudinal direction of the housing 20. 40).

  As shown in FIG. 2, the straight tube LED lamp 1 further includes a heat sink (the first base 50 and the second base 60) on which the LED module 10 is arranged, and light emitted from the LED module 10 in a predetermined direction. And a lighting circuit 80 for lighting the LED module 10 and a connector wire 90 for electrical connection between the components in the housing 20. In the straight tube type LED lamp 1 in the present embodiment, a one-side power feeding method in which the LED module 10 receives power from only one side of the power feeding base 30 is adopted.

  Hereafter, each component of the straight tube | pipe type LED lamp 1 is explained in full detail, referring FIG.2 and FIG.3.

[LED module]
As shown in FIGS. 2 and 3, the LED module 10 has a long shape, and a plurality of LED modules 10 are arranged along the tube axis direction of the housing 20. The plurality of LED modules 10 are arranged adjacent to each other so that the longitudinal direction thereof is the longitudinal direction of the housing 20. Specifically, the substrate 11 of the LED module 10 is disposed adjacent to the second base 60. In the present embodiment, four LED modules 10 (four substrates 11) are used.

  Here, the detailed structure of each LED module 10 is demonstrated using FIG. FIG. 4 is a perspective view of the LED module according to the present embodiment.

  As shown in FIG. 4, the LED module 10 is a COB (Chip On Board) type light emitting module in which an LED chip is directly mounted on a substrate, and includes a substrate 11, a plurality of LEDs (bare chips) 12, and an LED 12. And a connection terminal 14 that receives supply of power for causing the LED 12 to emit light from the outside of the LED module.

  The substrate 11 is a mounting substrate (insulating substrate) for mounting the LEDs 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. As for the board | substrate 11, the surface where LED12 is mounted is a 1st main surface (front surface), and the surface on the opposite side to the said 1st main surface is a 2nd main surface (back surface). The LED 12 is mounted only on the first main surface of the substrate 11, and the LED 12 is not mounted on the second main surface. As will be described later, the LED module 10 is mounted on the second base 60 so that the second main surface of the substrate 11 and the mounting surface of the second base 60 are in contact with each other.

  As the substrate 11, a ceramic substrate made of alumina, aluminum nitride, or the like, a resin substrate based on a resin, a metal base substrate based on a metal such as an aluminum alloy, 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, a copper alloy substrate, or the like can be used.

  Further, if 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), then L1 = 100 mm to 600 mm, and L2 = 10 mm to 40 mm. In addition, the board | substrate 11 in this Embodiment uses the thing of L1 = 280mm, L2 = 15mm, and thickness 1.0mm.

  The LED 12 is an example of a light emitting element, and is a semiconductor light emitting element that emits light with a predetermined power. As shown in FIG. 4, a plurality of LEDs 12 are arranged on the substrate 11 in a line along the longitudinal direction of the substrate 11. Each LED 12 is a bare chip that emits monochromatic visible light, and is die-bonded on the substrate 11 by a die attach material (die bond material). The plurality of LEDs 12 on the substrate 11 have the same characteristics, and are blue LED chips that emit blue light when energized, for example. As the blue LED chip, for example, a gallium nitride based semiconductor light emitting device having a center wavelength of 440 nm to 470 nm, which is made of an InGaN based material, can be used.

  Each LED 12 is configured to be a serial connection, a parallel connection, or a combination connection of a series connection and a parallel connection by a metal wiring (not shown) or a gold wire (not shown) formed on the substrate 11. Can do.

  The sealing member 13 is a phosphor-containing resin containing a phosphor that is a light wavelength converter, and is a wavelength conversion member that converts the wavelength of light from the LED 12 to a predetermined wavelength (color conversion), and the LED 12 is a resin. It is a protective member that seals and protects the LED 12. In the present embodiment, the sealing member 13 is made of an insulating resin material containing phosphor particles as a wavelength conversion material. The phosphor particles in the sealing member 13 are excited by light emitted from the LED 12 and emit light of a desired color (wavelength).

  Further, the sealing member 13 is formed in a linear shape so as to collectively seal the plurality of LEDs 12 arranged in a row. In this embodiment, all the LEDs 12 are collectively sealed. In this way, the sealing member 13 does not seal the individual LEDs 12 but collectively seals the plurality of LEDs 12, so that white light is also emitted from the sealing member 13 between the adjacent LEDs 12. Can do. Thereby, it can suppress that the brightness | luminance only above LED12 becomes high, and can reduce a bright spot (crush feeling).

  For example, when the LED 12 is a blue LED, the sealing member 13 is a phosphor in which YAG (yttrium, aluminum, garnet) -based yellow phosphor particles are dispersed in a resin material such as a silicone resin in order to obtain white light. A containing resin 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, and therefore the excited yellow light and the blue light of the blue LED chip are sealed from the sealing member 13. By being diffused and mixed in 13, it is emitted as white light from the sealing member 13.

  In the present embodiment, the sealing member 13 is made of a phosphor-containing resin in which predetermined phosphor particles are dispersed in a silicone resin, and can be formed by applying to the surface of the substrate 11 with a dispenser. In this case, the shape of the sealing member 13 in a cross section perpendicular to the longitudinal direction of the sealing member 13 is a dome-shaped cross section or a substantially semicircular shape. The sealing member 13 may further contain a light diffusing material such as silica. Moreover, in order to improve color rendering properties, phosphor particles that emit fluorescence other than yellow, such as red phosphor particles, may be included as necessary.

  The connection terminal 14 is an external connection terminal (connector) that receives DC power for causing the LED 12 to emit light, and is electrically connected to the LED 12. The connection terminal 14 is provided at a predetermined location on the substrate 11. In the present embodiment, the connection terminal 14 is provided in the vicinity of the long side of the substrate 11 at both ends in the longitudinal direction of the substrate 11, and the two connection terminals 14 are formed on the substrate 11 with reference to the sealing member 13. One side is shifted to the long side.

  Further, the connection terminal 14 in the present embodiment is configured in 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. In addition, when the mounting portion 91 of the connector line 90 is mounted on the connection terminal 14 (socket), the connection terminal 14 can receive power from the connector line 90. The connection terminal 14 may be a land-like metal wiring (metal electrode) patterned in a rectangular shape instead of a resin socket.

  Although not shown, metal wiring is formed on the first main surface of the substrate 11. The metal wiring is patterned in a predetermined shape on the substrate 11 in order to electrically connect the LEDs 12 or connect the LEDs 12 and the connection terminals 14. In order to protect the LED 12, a protection element (zener diode) may be mounted on the first main surface of the substrate 11. Furthermore, in order to improve the heat dissipation of the LED module 10, a metal film or metal pattern for heat dissipation may be formed on the second main surface of the substrate 11. Furthermore, in order to improve the insulating property of the substrate 11, an insulating film such as a white resist may be formed on the first main surface and the second main surface of the substrate 11.

[Case]
The housing | casing 20 is an example of a elongate translucent cover, Comprising: It is comprised so that the 1st base 50 and the 2nd base 60 in which the LED module 10 is arrange | positioned may be covered. The casing 20 in the present embodiment is a straight tube having translucency, and as shown in FIG. 2, is a long cylindrical outer member (extratubular tube) having openings at both ends. The housing 20 houses the LED module 10, the first base 50, the second base 60, the lighting circuit 80, and the like. In the present embodiment, the casing 20 has a cylindrical shape. However, the casing 20 does not necessarily have a cylindrical shape, and may have a rectangular tube shape.

The housing 20 can be made of a translucent material, and a glass tube (glass bulb) made of glass, a plastic tube made of resin, or the like can be used. For example, as the housing 20, a glass tube made of soda lime glass having silica (SiO ₂ ) of 70 to 72 [%] or a plastic tube made of a resin material such as polycarbonate can be used. In the present embodiment, the same glass tube (the total length is about 1167 mm) used for the straight tube 40 type fluorescent lamp is used as the housing 20.

  Further, the housing 20 may be provided with a light diffusing unit having a light diffusing function for diffusing light from the LED module 10. 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.

[Feeding cap]
The power supply base (first base) 30 is a power reception base that receives power for causing the LED 12 to emit light from the outside of the lamp, and supplies power to the LED module 10. The power supply cap 30 is configured to be locked to the socket of the lighting fixture and to support the LED lamp. 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.

  Further, the power feeding base 30 in the present embodiment is configured to be divided into a plurality of parts along the axial direction of the power feeding base 30. Specifically, the power supply base body 31 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 two members with the main-body part 31b.

  The pair of power supply pins 32 are pins for supplying power to the LED module 10. The power supply pin 32 is a power reception pin that receives power for turning on the LEDs 12 of the LED module 10 from an external device such as a lighting fixture. The pair of power supply pins 32 are configured to protrude outward from the bottom of the power supply base body 31. The power supply pin 32 is locked to the socket of the lighting fixture.

  For example, by attaching the power supply cap 30 to the socket of the lighting fixture, the pair of power supply pins 32 can receive DC power from a power supply device (power supply circuit) built in the lighting fixture. The pair of power supply pins 32 are electrically connected to the lighting circuit 80 in the housing 20 by lead wires 33, and the DC power received by the pair of power supply pins 32 is supplied to the lighting circuit 80.

  The power supply device may be incorporated in the straight tube LED lamp 1 instead of being provided in a lighting fixture outside the lamp. In this case, the pair of power supply pins 32 receives AC power from, for example, a commercial 100V AC power supply and supplies the AC power to the power supply device, and the AC power is converted into DC power by the power supply device.

  Here, the peripheral configuration of the power supply cap 30 will be described with reference to FIGS. 5A and 5B. FIG. 5A is a perspective view showing a peripheral configuration of the power supply base in the straight tube LED lamp according to the present embodiment, and shows a state where the first power supply base body 31a is removed. FIG. 5B is an exploded perspective view showing a peripheral configuration of the power feeding base. In FIG. 5B, the housing 20 is not shown.

  As shown in FIGS. 5A and 5B, for example, one end of the lead wire 33 and the power supply pin 32 are electrically and physically connected by solder, and the other end of the lead wire 33 and the lighting circuit 80 (output socket 84). Are electrically and physically connected, and then the lighting circuit 80 is disposed on the second base 60. Next, the lighting circuit 80 is covered with the circuit cover 85 by attaching the circuit cover 85 to the first wall portion 51 and the second wall portion 52 of the first base 50. Thereafter, the power supply pin 32 is attached to the groove portion of the second power supply base body 31b on which the second base 60 is disposed, and then the first power supply base body 31a is fitted into the second power supply base body 31b. Thereafter, the first feeding base body 31 a and the second feeding base body 31 b are screwed together with screws 34. Accordingly, the power supply base 30 can be attached to one end of the housing 20 in a state where the second base 60 is fixed to the power supply base 30.

  Further, as shown in FIGS. 5A and 5B, the feeding base body 31 (second feeding base body portion 31b) is provided with a pair of partition-like convex portions 35. The pair of convex portions 35 are guide portions that guide the lead wire 33. That is, when the lead wire 33 is disposed in the power supply base body 31, the pair of convex portions 35 are connected to the power supply base body 31 (the first power supply base body 31 a and the second power supply). The lead wire 33 is guided so as to regulate the position of the lead wire 33 so as not to get caught in the resin portion around the screw 34 and the resin portion around the screw 34. Specifically, the lead wire 33 is bent toward the side surface direction of the power supply base body 31 in the vicinity of the two convex portions 35 and is connected to the power supply pin 32 around the outside of the two convex portions 35. Has been. As a result, the lead wire 33 is positioned outside the two convex portions 35, so that the first power supply base body 31 a and the second power supply base body 31 b are fitted together to supply the power base 31. When assembling the lead wire 33, the lead wire 33 protrudes from the power supply base body 31 and is sandwiched between the first power supply base body 31a and the second power supply base body 31b or is wound around the screw 34 (screw hole). Can be avoided. Thereby, it is possible to prevent the lead wire 33 from being disconnected or to prevent a gap from being generated in the power supply base body 31.

[Non-powered cap]
The non-power feeding base 40 is configured to be locked to the socket of the lighting fixture and to support the LED lamp. The non-power feeding base 40 is formed in a substantially bottomed cylindrical shape, and is provided so as to cover the other end in the longitudinal direction of the housing 20. As shown in FIG. 2, the non-power supply base 40 in the present embodiment includes a non-power supply base body 41 made of a synthetic resin such as PBT and a single non-power supply pin 42 made of a metal material such as brass. Become.

  Further, the non-power supply base 40 in the present embodiment is configured to be divided into a plurality of parts along the axial direction of the non-power supply base 40, similarly to the power supply base 30. Specifically, the non-power feeding base body 41 is configured to be disassembled into upper and lower halves with a plane passing through the tube axis of the housing 20 as a dividing surface, and the first non-power feeding base body 41a and the second non-power feeding base body 41a. It is comprised by two members with the nozzle | cap | die main body part 41b for electric power feeding.

  The non-feeding pins 42 are configured to protrude outward from the bottom of the non-feeding base body 41. The non-power supply pin 42 is locked to the socket of the lighting fixture.

  Here, the peripheral configuration of the non-power feeding base 40 will be described with reference to FIGS. 6A and 6B. FIG. 6A is a perspective view showing a peripheral configuration of a non-power supply base in the straight tube LED lamp according to the present embodiment. FIG. 6B is a perspective view of the non-power feeding base, showing a state in which the first non-power feeding base body 41a is removed.

  As shown in FIGS. 6A and 6B, after the non-feeding pin 42 is attached to the second base 60 by the L-shaped metal connection member 43, it is placed on the first base 50 via the reflection member 70. The second base 60 is disposed, and the non-feeding pins 42 are attached to the grooves of the second non-feeding base body 41b. Next, the first non-power feeding base body 41a is fitted into the second non-power feeding base body 41b. Thereafter, the first non-power feeding base body 41 a and the second non-power feeding base body 41 b are screwed together with screws 44. Thereby, the non-power feeding base 40 can be attached to the end of the housing 20 in a state where the second base 60 is fixed to the non-power feeding base 40.

  The non-power supply base 40 may be provided with a ground function, and the non-power supply base 40 may be used as the ground base. In this case, the non-feeding pin 42 functions as an earth pin grounded via the lighting fixture, and is connected to the second base 60 made of metal. Thereby, the second base 60 is grounded via the non-feed pin 42 and the connection member 43.

[Base]
Each of the first base 50 and the second base 60 is made of metal, functions as a heat sink that dissipates heat generated in the LED module 10, and serves as a fixing member for mounting and fixing the LED module 10. Function.

<1st base>
As shown in FIG. 2, the first base 50 is a long metal base that extends in the longitudinal direction of the housing 20, and constitutes the outline of the heat sink. The first base 50 is configured by, for example, deforming a metal plate by bending or the like. In the present embodiment, the first base 50 is formed using a thin galvanized steel sheet.

  The first base 50 has a long bottom surface 53 extending in the longitudinal direction of the housing 20, and a first wall provided in a partition shape from the bottom 53 and extending in the longitudinal direction of the housing 20. Part 51 and second wall part 52. In the present embodiment, in a cross-sectional view of the first base 50, the angle formed by the bottom surface portion 53, the first wall portion 51, and the second wall portion 52 is approximately 90 °.

  The first wall portion 51 and the second wall portion 52 are provided at both ends of the first base 50 in the short side direction (width direction of the substrate 11) in the bottom surface portion 53, and the substrate 11 of the LED module 10 is The substrate 11 is configured to be sandwiched from the short direction. That is, the first wall portion 51 faces one side surface of the substrate 11, and the second wall portion 52 faces the other side surface of the substrate 11. Thus, the substrate 11 of the LED module 10 is sandwiched between the first wall portion 51 and the second wall portion 52.

  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 first protrusion 51a and the second protrusion 52a are formed to fix the substrate 11 to the first base 50 and the second base 60, as will be described later.

  Further, the first base 50 has a first cutout portion 51b formed in the vicinity of the first protrusion 51a and a second cutout portion 52b formed in the vicinity of the second protrusion 52a. In the present embodiment, the first cutout portion 51 b is cut out so as to straddle the first wall portion 51 and the bottom surface portion 53 (first bottom surface portion 53 a), and the longitudinal direction of the first base 50. Is formed in a slit shape. Similarly, the second cutout portion 52 b is cut out so as to straddle the second wall portion 52 and the bottom surface portion (first bottom surface portion 53 a), and is slit along the longitudinal direction of the first base 50. It is formed in a shape. The first cutout portion 51 b and the second cutout portion 52 b are formed to make it easier to push the LED module 10 (substrate 11) into the first base 50.

  The bottom surface portion 53 is configured to be bent so as to have a stepped portion, and includes a first bottom surface portion 53 a that supports the second base 60 and the substrate 11, and a second bottom surface portion 53 b provided with the fixing portion 54. Have

  The fixing portion 54 is formed to fix the first base 50 and the housing 20 as will be described later. As shown in FIG. 3, in the present embodiment, three fixing portions 54 are provided. That is, the first base 50 and the housing 20 are fixed at three locations.

  A biasing portion 55 is formed on the second bottom surface portion 53 b of the first base 50. The urging portion 55 is configured to come into contact with the reflecting member 70 and applies pressure to the reflecting member 70 (second base 60). As will be described later, the urging portion 55 is formed to hold the LED module 10 between the urging portion 55, the first protrusion 51a, and the second protrusion 52a. As shown in FIG. 3, in the present embodiment, eight urging portions 55 are provided on the first base 50.

  In addition, the first base 50 is formed with a pair of protrusions 56 that protrude from the first bottom surface portion 53a toward the substrate 11 side. The pair of protrusions 56 are restriction portions that restrict the movement of the second base 60 in the width direction. That is, by arranging the second base 60 between the pair of protrusions 56, the movement of the second base 60 in the width direction is restricted. As shown in FIG. 3, in the present embodiment, the pair of protrusions 56 are provided at both ends in the longitudinal direction of the first base 50. The protruding portion 56 is formed by processing a part of a metal plate constituting the first base 50. The pair of protrusions 56 are inserted through the pair of through holes 74 of the reflection member 70. Thereby, the movement of the reflecting member 70 can also be restricted.

  The first base 50 is formed with a pair of projections 57 for positioning the second base 60. As shown in FIGS. 6A and 6B, the pair of protrusions 57 are locked to the third notch 63 of the second base 60. Thereby, the relative positions of the first base 50 and the second base 60 are determined. The protrusion 57 can also restrict the movement of the second base 60 in the longitudinal direction. As shown in FIG. 3, the pair of protrusions 57 are provided at one end of the first base 50 in the longitudinal direction. The protrusion 57 is formed so as to cut and raise a part of the metal plate constituting the first base 50. The pair of protrusions 57 are inserted through the pair of through holes 75 of the reflection member 70. Thereby, positioning of the reflective member 70 can also be performed.

  As shown in FIGS. 2 and 3, the first base 50 is formed with a convex portion 58 for mounting the circuit cover 85 on the first base 50. The convex portion 58 is formed so as to protrude outward in each of the first wall portion 51 and the second wall portion 52. In the present embodiment, the convex portion 58 is configured by deforming the first wall portion 51 and the second wall portion 52 so as to cut and bulge a part thereof.

<Second base>
The second base 60 is an intermediate plate heat sink disposed between the first base 50 and the LED module 10. As shown in FIGS. 2 and 3, the second base 60 is a long metal base extending in the longitudinal direction of the housing 20, similarly to the first base 50. The second base 60 is preferably made of a high thermal conductivity material such as metal, and is an aluminum plate in the present embodiment. The plate thickness of the second base 60 is configured to be thicker than the plate thickness of the first base 50. Further, the second base 60 is configured to be longer than the length of the first base 50. That is, each of both ends of the second base 60 is covered with the power supply base 30 or the non-power supply base 40. As described above, the second base 60 has the power supply base 30 and the non-power supply base 40. Attached to.

  Further, the second base 60 is provided with a first cutout portion 61 and a second cutout portion 62. The first notch 61 and the second notch 62 are formed by notching a part of the second base 60. Further, the first cutout portion 61 and the second cutout portion 62 are provided at a position overlapping the edge of the substrate 11 of the LED module 10.

  As shown in FIG. 3, the first notch 61 is provided at a position overlapping the boundary portion (boundary line) of the substrate 11 disposed adjacent to the second base 60. That is, the first notch 61 is formed so as to cover the boundary line of the substrate 11. In the present embodiment, the first cutout portion 61 is provided in the vicinity of the LED 12 present at the position closest to the second base 60 among the LEDs 12 in each LED module 10. Note that the first notch 61 may be provided at a position overlapping the boundary portion between the adjacent circuit board 81 and the board 11 as shown in FIG. 5B.

  The first notch 61 in the present embodiment is a through-hole penetrating the second base 60 and is a racetrack-shaped opening extending in the longitudinal direction of the second base 60 in plan view.

  The second notch 62 is provided in the vicinity of the connection terminal 14 of the LED module 10. More specifically, the second notch 62 is notched so as to recede from the long side edge of the second base 60 toward the inside of the base so as to be located below the connection terminal 14. Is formed. In the present embodiment, the second notch 62 is formed so as to recede from both long side edges toward the inside.

  Further, the second base 60 is provided with a third cutout portion 63 in which the pair of protrusions 57 are locked. The third notch 63 is formed by notching a part of the second base 60. In the present embodiment, the third cutout 63 is formed so as to recede from both long side edges toward the inside. Further, the third notch 63 is provided at one end in the longitudinal direction of the second base 60 so as to correspond to the pair of protrusions 57.

[Reflection member]
The reflecting member 70 is configured to reflect light emitted from the LED module 10 (LED 12) 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 bending an insulating reflecting sheet made of a biaxially stretched polyester (PET) film or the like. .

  As shown in FIG. 2, the reflecting member 70 is processed to have a U-shaped cross section, and includes a first reflecting wall portion 71, a second reflecting wall portion 72, and a bottom surface portion 73. Each of the first reflection wall portion 71, the second reflection wall portion 72, and the bottom surface portion 73 extends along the longitudinal direction of the first base 50. Light from the LED module 10 is reflected by the inner surfaces of the first reflection wall portion 71 and the second reflection wall portion 72.

  The first reflecting wall 71 has a first cutout 71 a provided at a position corresponding to the first protrusion 51 a of the first wall 51 in the first base 50. Similarly, the second reflecting wall 72 has a second notch 72 a provided at a position corresponding to the second protrusion 52 a of the second wall 52 in the first base 50.

  The first cutout portion 71a and the second cutout portion 72a are provided with a first reflection wall portion 71 and a second reflection portion in order to avoid collision with the first projection portion 51a and the second projection portion 52a of the first base 50. It is formed so as to be cut out downward from the upper end edge of the wall portion 72. Thereby, when the reflecting member 70 is disposed on the first base 50, the first projecting portion 51 a and the second projecting portion 52 a of the first base 50 have the first reflecting wall portion 71 and the second reflecting wall portion 72. Protrude from.

  A pair of through holes 74 are provided at both ends of the reflecting member 70 in the longitudinal direction. The protrusion 56 of the first base 50 is inserted into the through hole 74. Further, a pair of through holes 75 are provided at one end in the longitudinal direction of the reflecting member 70. The protrusion 57 of the first base 50 is inserted through the through hole 75.

[Lighting circuit]
The lighting circuit 80 is an LED lighting circuit for controlling the lighting state of the LED 12 in the LED module 10. In the present embodiment, the lighting circuit 80 rectifies and outputs an input direct current. As shown in FIG. 2, the lighting circuit 80 includes a circuit board 81 and a plurality of circuit elements 82 mounted on the circuit board 81.

  The circuit board 81 is a printed board on which a predetermined wiring pattern (not shown) for electrically connecting a plurality of mounted circuit elements 82 to each other is formed. For example, a glass epoxy board or the like can be used.

  The circuit element 82 is an electronic component for lighting the LED 12 of the LED module 10, and is, for example, a diode bridge circuit (rectifier circuit) for full-wave rectification of input DC power, a fuse element, or the like. As the circuit element 82, a resistor, a capacitor, a coil, a diode, a transistor, or the like may be provided as necessary.

  Further, the lighting circuit 80 includes an input socket 83 (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 84 (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 via the lead wire 33 is inserted into the input socket 83. In addition, an output connector terminal electrically connected to the LED module 10 is inserted into the output socket 84 via a lead wire (connector wire 90). The input socket 83 and the output socket 84 are electrically connected to a predetermined circuit element 82 by a wiring pattern formed on the circuit board 81.

  The lighting circuit 80 configured as described above is disposed on the first base 50 and covered with a circuit cover 85. In the present embodiment, the lighting circuit 80 (circuit board 81) is placed on the second base 60 placed on the first base 50. The circuit cover 85 is made of an insulating resin, protects the lighting circuit 80, and ensures insulation from other components. The circuit cover 85 is formed with a locking hole in which the convex portion 58 of the first base 50 is locked. As shown in FIGS. 5A and 5B, the first cover is formed in the locking hole of the circuit cover 85. The circuit cover 85 can be fixed to the first base 50 by locking the convex portion 58 of the base 50.

  The lighting circuit 80 (circuit board 81) may be placed not on the second base 60 but on the board 11 of the LED module 10. In this case, the length of the substrate 11 may be increased by the amount on which the lighting circuit 80 is mounted. Further, without using the circuit board 81, the board 11 of the LED module 10 may be used as a circuit board, and the circuit element 82 may be directly mounted on the board 11. In this case, the input socket 83 is provided on the substrate 11, the power feed pin 32 and the input socket 83 are electrically connected by the lead wire 33, and the input socket 83 and the circuit element 82 are electrically connected by the wiring pattern on the substrate 11. Connect to The output from the circuit element 82 (DC power after rectification) can be supplied to the LED 12 by forming a wiring pattern on the substrate 11.

[Connector wire]
The connector line 90 electrically and physically connects adjacent LED modules 10, and electrically and physically connects the LED modules 10 and the lighting circuit 80.

  As shown in FIG. 2, the connector wire 90 is a conductive wire that electrically connects the pair of mounting portions (connector portions) 91 that are mounted on the connection terminals 14 of the LED module 10 and the pair of mounting portions 91. And a power supply line 92 for passing power supplied to the LED module 10.

  The mounting portions 91 are provided at both ends of the power supply line 92, and have a substantially rectangular resin molded portion configured to be fitted to the connection terminals (sockets) 14 of the LED module 10, and the resin molded portion. And a conductive portion provided on the surface. In addition, the power supply line 92 can be configured by a lead wire on which a metal wire called a harness is coated with a resin. In the present embodiment, the connector line 90 is configured to pass DC power, and the power supply line 92 includes a positive voltage supply line that supplies a positive voltage and a negative voltage supply line that supplies a negative voltage.

  In the present embodiment, since four long LED modules 10 are arranged in the housing 20, four connector wires 90 are used. Specifically, one connector line 90 that connects the connection terminal 14 of the LED module 10 disposed on the power supply base 30 side and the output socket 84 of the lighting circuit 80, and the connection terminals 14 of the adjacent LED modules 10. And three connector wires 90 for connecting the two. As a result, DC power is supplied from the lighting circuit 80 to the LED module 10 via the connector line 90, and power is supplied from one LED module 10 to the other LED module 10.

[Positional relationship of each component]
Next, using FIG. 7, FIG. 8A, FIG. 8B, and FIG. 8C, the LED module 10, the first base 50, the second base 60, the reflecting member 70, etc. The positional relationship and connection relationship will be described in detail. FIG. 7 is a partially enlarged side view of the straight tube LED lamp according to the present embodiment. 8A is a cross-sectional view of the straight tube LED lamp taken along line AA ′ of FIG. 7, and FIG. 8B is a cross-sectional view of the straight tube LED lamp taken along line BB ′ of FIG. FIG. 8C is a cross-sectional view of the straight tube LED lamp taken along the line CC ′ of FIG.

  As shown in FIGS. 8A to 8C, the first protrusion 51 a and the second protrusion 52 a in the first base 50 are configured to be in contact with the first main surface side of the substrate 11 in the LED module 10. ing. Specifically, the first protrusion 51 a and the second protrusion 52 a are formed as locking claws that lock on the first main surface side of the substrate 11. Thereby, the movement of the substrate 11 in the LED module 10 in the direction perpendicular to the first main surface of the substrate 11 is restricted. That is, the LED module 10 is fixed to the first base 50 so as not to jump out in the vertical direction of the substrate 11 by the first protrusion 51 a and the second protrusion 52 a.

  With this configuration, even after the straight tube LED lamp 1 is attached to the lighting fixture (that is, when the LED module 10 is positioned on the ground side with respect to the first base 50). However, the LED module 10 is prevented from falling off from 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. Moreover, since the LED module 10 can be fixed to the 1st base 50 by pushing the LED module 10 (board | substrate 11) into the 1st base 50, the assembly of the LED module 10 and the 1st base 50 is easy. Can be done.

  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. FIG. For example, by embossing the first wall portion 51 and the second wall portion 52 made of a metal plate, a part of the metal plate can be protruded. Thereby, the LED module 10 can be fixed to the first base 50 with a simple configuration without using another member.

  Furthermore, in the first protrusion 51a and the second protrusion 52a, the substrate 11 in the first protrusion 51a or the second protrusion 52a is prevented from dropping off from the first base 50 due to vibration or impact. The shape on the first main surface side is a substantially flat surface facing the first main surface. 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 main surface side is when the substrate 11 is inserted in 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.

  Further, as shown in FIGS. 8A to 8C, a stepped portion is formed on the bottom surface portion 53 of the first base 50 by a first bottom surface portion 53a and a second bottom surface portion 53b. A space region is formed between the bottom surface portion 53 (second bottom surface portion 53b) of the first base 50 and the reflecting member 70 by the step portion, and the urging portion 55 is provided using the space region. ing.

  The urging portion 55 is formed by processing a part of a metal plate that constitutes the first base 50, and is formed by cutting and raising the plate-like first bottom surface portion 53 a of the first base 50. It is configured as a leaf spring. The urging portion 55 configured as described above is configured to abut against the reflecting member 70 and applies pressure to the reflecting member 70 (second base 60) by urging by the elastic force of the leaf spring. doing.

  That is, the urging unit 55 is directed toward the second main surface of the substrate 11 in the LED module 10 (that is, in the direction from the second main surface of the substrate 11 toward the first main surface), The two bases 60 and the reflecting member 70 are configured to be biased.

  As described above, the substrate 11 of the LED module 10 is urged by the urging unit 55, and the pressure is applied by the elastic force of the urging unit 55. 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 55. As shown in FIG. That is, since the substrate 11 is pressed from both sides of the first main surface and the second main surface, the substrate 11 can be firmly held on the first base 50. Moreover, since the urging | biasing part 55 is formed by processing a part of 1st base 50, the holding | maintenance performance of the board | substrate 11 can be improved with a simple structure.

  In the present embodiment, as shown in FIG. 8C, a first notch 51b is formed in the vicinity of the first protrusion 51a, and a second notch 52b is formed in the vicinity of the second protrusion 52a. ing. Thereby, when fixing the board | substrate 11 to the 1st base 50, the peripheral part of the 1st protrusion part 51a and the 2nd protrusion part 52a can be easily elastically deformed. Therefore, 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.

  7 and 8A, the fixing portion 54 is deformed so that a part of the bottom surface portion 53 (second bottom surface portion 53b) of the first base 50 protrudes toward the inner surface of the housing 20. It is composed by doing. An adhesive for adhering and fixing the fixing portion 54 and the housing 20 is filled between the fixing portion 54 of the first base 50 and the inner surface of the housing 20. In this way, the first base 50 can be fixed to the casing 20 by bonding the fixing portion 54 and the inner surface of the casing 20 with an adhesive. For example, a silicone resin can be used as the adhesive.

  As shown in FIGS. 8A to 8C, the second base 60 is sandwiched between the LED module 10 and the first base 50, and the LED module 10 (board) is placed on the second base 60. 11) is placed. By fixing the LED module 10 to the first base 50, the second base 60 is also fixed to the first base 50.

  The second base 60 is placed on the first bottom surface portion 53a of the first base 50 via the reflecting member 70, and the surface (back surface) of the second base 60 on the first base 50 side. Is biased by the elastic force (biasing force) of the biasing portion 55 of the first base 50 via the reflecting member 70.

  The second base 60 is disposed between the LED module 10 (substrate 11) and the first base 50 so as to come into contact with the substrate 11. Thereby, the heat generated in the LED 12 can be efficiently transmitted to the second base 60 via the substrate 11.

  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 60 made of aluminum having high thermal conductivity is used. Thereby, it is possible to easily fix the LED module 10 and realize a heat sink excellent in heat dissipation.

  As shown in FIGS. 8A to 8C, the first reflecting wall portion (first reflecting surface portion) 71 and the second reflecting wall portion (second reflecting surface portion) 72 in the reflecting member 70 are the bottom surface of the first base 50. It is formed at both ends of the portion 53 in the short direction (the width direction of the substrate 11), and is configured to sandwich the substrate 11 of the LED module 10 from the short direction of the substrate 11. That is, the first reflection wall portion 71 faces one side surface of the substrate 11, and the second reflection wall portion 72 faces the other side surface of the substrate 11.

  The first reflecting wall 71 is located inside the first wall 51 of the first base 50, and in the present embodiment, the outer surface of the first reflecting wall 71 is the same as the inner surface of the first wall 51. In contact. On the other hand, the second reflecting wall 72 is located inside the second wall 52 of the first base 50. In the present embodiment, the outer surface of the second reflecting wall 72 is the second wall 52. It is in surface contact with the inner surface.

  The reflection member 70 (bottom surface portion 73) is placed on the first bottom surface portion 53a of the first base 50, and the second base 60 and the substrate 11 are placed on the reflection member 70 (bottom surface portion 73). Is placed. That is, the reflecting member 70 is disposed between the first base 50 and the second base 60. The bottom surface portion 73 of the reflection member 70 is biased by the elastic force of the biasing portion 55 of the first base 50.

  Further, as shown in FIG. 7, the height of the first wall portion 51 and the second wall portion 52 in the first base 50 and the height of the first reflection wall portion 71 and the second reflection wall portion 72 in the reflection member 70. However, in this embodiment, the height of the first wall portion 51 and the second wall portion 52 is constant. It is better to make it higher. By doing in this way, since the shape of the part which interrupts the light of the LED module 10 can be made straight (that is, the shadow edge produced by the 1st wall part 51 and the 2nd wall part 52 can be made straight). Good light distribution characteristics can be realized.

(Characteristic configuration of the present invention)
Next, the characteristic configuration and operational effects of the straight tube LED lamp 1 according to the present embodiment will be described with reference to FIG. FIG. 9 is an enlarged view of a main part of the straight tube LED lamp according to the present embodiment, in which (a) is a plan view and (b) is a cross-sectional view taken along line DD ′ of (a).

  As shown in FIG. 9A, in the LED module 10 disposed adjacent to the second base 60, the connection terminals 14 of the LED modules 10 are electrically connected by the connector line 90. In general, the length of the power supply line 92 in the connector line 90 is longer than the length between the connection terminals 14 in consideration of workability when the connector line 90 is attached to the connection terminals 14.

  Therefore, conventionally, when the connector line 90 is attached to the connection terminal 14, a part of the power supply line 92 may be bent or floated and protrude above the substrate 11. In this case, the light from the LED 12 is blocked by the power supply line 92, and a shadow of the power supply line 92 may occur. As a result, the shadow of the connector line 90 becomes a problem in appearance quality. There is also a problem that the light distribution characteristics of the LED lamp deteriorate.

  Therefore, in the present embodiment, as shown in FIGS. 9A and 9B, when the connector wire 90 is attached to the connection terminal 14, the light of the LED 12 (sealing member 13) is transmitted by the connector wire 90. The connector wire 90 is previously deformed into a predetermined shape so as not to be blocked. That is, before connecting to the connection terminal 14, the power supply line 92 has a predetermined shape, and the shadow of the connector line 90 (power supply line 92) is caused by the light of the LED 12 (sealing member 13). It does not occur.

  Specifically, the power supply line 92 bulges upward in the direction perpendicular to the main surface of the substrate 11, and the first wall portion 51 and the second wall portion 52 of the first base 50 and the first reflection wall portion 71 of the reflection member 70. In addition, the power supply line 92 is previously formed into a predetermined shape so as not to exceed the upper end edge of the wall portion of the second reflection wall portion 72.

  For connector wire 90 in the present embodiment, power supply line 92 is deformed in advance into a predetermined shape so that the position of power supply line 92 with respect to substrate 11 (the height position in the direction perpendicular to the main surface of substrate 11) is constant. I am letting. Moreover, it is preferable that the predetermined shape of the power supply line 92 obtained by the deformation is maintained even after the connector line 90 is connected to the connection terminal 14.

  In the present embodiment, the power supply line 92 is deformed so as to be bent or curved in a horizontal direction with respect to the first main surface of the substrate 11, and is perpendicular to the first main surface of the substrate 11. It is not deformed in any direction. For example, as shown in FIG. 9A, the central portion of the power supply line 92 can be curved away from the sealing member 13 (light emitting portion) of the LED module 10 in plan view. In this case, as shown in the figure, the outer power supply line 92 is preferably arranged so as to abut on the reflecting member 70 (first reflecting wall portion 72).

  In the present embodiment, the connector wire 90 is in contact with the surface of the substrate 11. For example, as shown in FIG. 9B, the power supply line 92 can be configured to be in contact with the surface of each of the adjacent substrates 11 over the entire length thereof.

  Here, an example of a method of forming the connector line 92 will be described with reference to FIG. FIG. 10 is a diagram for explaining a method of forming a connector line in the straight tube LED lamp according to the present embodiment.

  First, as shown in FIG. 10A, a connector wire 90 is prepared and set on a jig 200 composed of four pins provided at a predetermined interval. At this time, as shown in FIG. 10B, the two power supply lines 92 are arranged so as to pass between the two pins.

  Then, by applying a bending stress to the mounting portion 91, as shown in FIG. 10C, the power supply line 92 is bent and deformed with each of the four pins as fulcrums. Thereafter, the deformed connector wire 92 is removed from the jig 200. Thereby, as shown in FIG.10 (d), the connector wire 90 forged into the predetermined shape can be obtained.

  In the present embodiment, the LED module 10 at the lamp end (the end opposite to the lighting circuit 80) uses a connector line 90A for folding as shown in FIG. The lamp end connector line 90A includes one mounting portion 91A and one power supply line 92A having both ends connected to the mounting portion 91A. With respect to the connector line 90A as well, the power supply line 92A can be deformed in advance into a predetermined shape as shown in FIG.

  By attaching the connector wires 90 and 90A formed in a predetermined shape in this way to a predetermined position of the LED module 10 or the like, the light from the LED 12 (sealing member 13) is blocked by the power supply line 92. This can be suppressed. Therefore, it is possible to suppress deterioration of the light distribution characteristics of the LED lamp due to the shadow of the power supply line 92.

  Further, the power supply line 92 of each connector line 90 may be fixed to the substrate 11 by a fixing member such as an adhesive or a tape. For example, as shown in FIGS. 12A and 12B, an adhesive 93 such as a silicone resin is applied and cured from above the power supply line 92 of the connector line 90, whereby the power supply line 92 is connected to the substrate 11 or the reflecting member 70. It can be fixed to (second reflection wall portion 72). Alternatively, as shown in FIG. 13, a connector wire 90 in which a double-sided adhesive tape 93A is wound around two bundled power supply lines 92 is attached to the LED module 10, and the power supply line 92 is attached to the substrate 11 or the reflecting member 70. Press against (second reflecting wall 72). Thereby, the power supply line 92 can be stuck to the board | substrate 11 or the reflection member 70 (2nd reflection wall part 72) via the double-sided adhesive tape 93A. The power supply line 92 may be attached to the substrate 11 or the like using a single-sided adhesive tape instead of the double-sided adhesive tape.

  In this way, by fixing the power supply line 92 to the substrate 11 with a fixing member such as an adhesive or a tape, the power supply line 92 can be connected to the substrate 11 or even after the straight tube LED lamp 1 is mounted on the lighting fixture. It is possible not to leave the reflecting member 70. Thereby, even if it is a case where the straight tube | pipe type LED lamp 1 is used for a long time, it can suppress that an external appearance quality is impaired by the shadow of the power supply line 92, or a light distribution characteristic deteriorates. In addition, when the vibration test and the drop test were performed on the straight tube LED lamp in which the power supply line 92 was fixed to the substrate 11 with the silicone resin and the double-sided adhesive tape, the power supply line 92 did not float.

  As described above, according to the straight tube type LED lamp 1 in the present embodiment, the connector line 90 (power supply line 92) is prevented so that the light of the LED 12 (sealing member 13) is not shielded by the connector line 90 (power supply line 92). ) In advance to a predetermined shape. Thereby, it can suppress that the light distribution characteristic of an LED lamp deteriorates by the shadow of the connector line 90 (electric power supply line 92).

(Lighting device)
Next, the illuminating device 2 which concerns on embodiment of this invention is demonstrated using FIG. FIG. 14 is a schematic perspective view of the illumination device according to the present embodiment.

  As shown in FIG. 14, the lighting device 2 according to the present embodiment is a base light, and includes a straight tube LED lamp 1 and a lighting fixture 100.

  As the straight tube LED lamp 1 shown in FIG. 14, the straight tube LED lamp 1 in the above embodiment is used as a light source for illumination. In this embodiment, as shown in FIG. 14, 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 luminaire 100 incorporates a power supply circuit for controlling lighting of the straight tube LED lamp 1. Moreover, 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.

(Modifications, etc.)
As described above, the illumination light source and the illumination device according to the present invention have been described based on the embodiments. However, the present invention is not limited to the above-described embodiments.

  For example, in the said embodiment, although the height of the 1st wall part 51 and the 2nd wall part 52 in the 1st base 50 was made constant, it is not restricted to this. For example, as shown in FIG. 15, the height of the first wall portion 51 and the second wall portion 52 may be lower in the vicinity of the connection terminal 14 than the other portions. Thereby, generation | occurrence | production of the creeping discharge between the connection terminal 14 and the 1st base 50 can be suppressed. In this case, the height difference between the heights of the first wall portion 51 and the second wall portion 52 is repeated, and the shadow caused by the top edge shape of the first wall portion 51 and the second wall portion 52 is uneven. As described above, it is preferable that the heights of the first reflection wall portion 71 and the second reflection wall portion 72 in the reflection member 70 be higher than the heights of the first wall portion 51 and the second wall portion 52. Furthermore, when lowering the height of the first wall 51 and the second wall 52 in the vicinity of the connection terminal 14, the height of the first wall 51 and the second wall 52 is set as shown in FIG. It is preferable that the height of the first wall portion 51 and the second wall portion 52 is smoothly changed by gradually decreasing the height. As a result, the height of the first wall 51 and the second wall 52 in the first base 50 is higher than the height of the first reflection wall 71 and the second reflection wall 72 in the reflection member 70. Even so, the shape of the portion of the LED module 10 that blocks light can be made a smooth line. Thereby, a favorable light distribution characteristic is realizable.

  Moreover, in the said embodiment, although the LED module was set as the COB type structure which mounted the LED chip directly on the board | substrate, it is not restricted to this. For example, as shown in FIG. 16, an LED chip (light emitting element) 12b is mounted in a recess of a resin package (container) 12a, and a sealing member (phosphor-containing resin) 12c is enclosed in the recess. Even if a package type LED element (SMD type LED element) 12A is used and a plurality of LED elements 12A are mounted on a substrate 11 on which metal wiring is formed, an SMD type LED module 10A is used. I do not care.

  Moreover, in the said embodiment, although the housing | casing 20 used the non-divided type cylindrical thing, it is good also as a divided type. For example, one long cylindrical casing (envelope) can be constituted by the translucent cover and the base. In this case, a semi-cylindrical translucent resin cover can be used as the translucent cover covering the LED module 10, and a semi-columnar metal base having a fin structure can be used as the base. Since this metal base has a structure in which the surface opposite to the surface on which the LED module 10 is placed is exposed, the heat of the LED module 10 can be directly radiated from the metal base to the outside of the lamp. In addition, as a base, you may use the resin base which consists of resin instead of a metal base.

  Moreover, in the said embodiment, although the straight tube | pipe type LED lamp 1 was set as the single side electric power feeding system which receives electric power feeding from only one side of the nozzle | cap | die 30 for electric power feeding, you may use the both-sides electric power feeding system which receives electric power feeding from both sides. In this case, a power feeding base 30 may be provided instead of the non-power feeding base 40.

  In the above embodiment, the power supply base 30 and the non-power supply base 40 are divided into two divided bases, but may be non-divided bases that are not divided.

  Further, in the above-described embodiment, an annular protrusion (rib) that contacts the longitudinal edge of the housing 20 on the inner peripheral surface of at least one of the power supply base body 31 and the non-power supply base body 41. May be formed along the circumferential direction. Thereby, the movement of the housing 20 in the tube axis direction can be restricted. In addition, insects, dust, and moisture can be prevented from entering the housing 20, and the wiring can be short-circuited, the electronic components in the housing 20 can be deteriorated, or the appearance of the insect can be deteriorated. Can be prevented.

  Moreover, in the said embodiment, although the LED module 10 was comprised so that white light might be emitted by a blue LED chip and yellow fluorescent substance, it is not restricted to this. For example, a phosphor-containing resin containing a red phosphor and a green phosphor may be used so as to emit white light by combining this with a blue LED chip. Moreover, 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.

  Moreover, although LED was illustrated as a light emitting element in the said embodiment, light emitting elements, such as semiconductor light emitting elements, such as a semiconductor laser, organic EL (Electro Luminescence), or inorganic EL, 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.

  INDUSTRIAL APPLICABILITY The present invention is useful for illumination light sources using light emitting elements such as LEDs, particularly straight tube LED lamps, and can be widely used in illumination devices and the like.

DESCRIPTION OF SYMBOLS 1 Straight tube type LED lamp 2 Illumination device 10, 10A LED module 11 Board | substrate 12 LED
12A LED element 12a package 12b LED chip 12c, 13 sealing member 14 connection terminal 20 housing 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 lead Wire 34, 44 Screw 35 Protruding part 40 Non-feeding base 41 Non-feeding base body 41a First non-feeding base body part 41b Second non-feeding base body part 42 Non-feeding pin 43 Connecting member 50 First base 51 First wall 51a First protrusion 51b, 61, 71a First notch 52 Second wall 52a Second protrusion 52b, 62, 72a Second notch 53, 73 Bottom 53a First bottom 53b Second bottom surface portion 54 Fixed portion 55 Biasing portion 56, 57 Projection portion 58 Protrusion portion 60 Second base 63 Third notch portion 70 Reflecting member 71 First Incident wall 72 Second reflecting wall 74, 75 Through hole 80 Lighting circuit 81 Circuit board 82 Circuit element 83 Input socket 84 Output socket 85 Circuit cover 90, 90A Connector wire 91, 91A Mounting portion 92, 92A Power supply line 93 Adhesion Agent 93A Double-sided adhesive tape 100 Lighting fixture 110 Socket 120 Appliance body 200 Jig

Claims (8)

A long translucent cover;
A long base covered with the translucent cover;
A plurality of substrates arranged adjacent to each other on the base;
A plurality of light emitting elements disposed on each of the plurality of substrates;
A connection terminal provided on each of the plurality of substrates;
A connector wire for electrically connecting the connection terminals of each of the adjacent boards;
The plurality of light emitting elements arranged on each of the plurality of substrates are arranged in a line along the longitudinal direction of the substrate,
The connection terminal is provided in the vicinity of the long side of the substrate at both ends in the longitudinal direction of the substrate, and is shifted to one long side of the substrate with respect to the arrangement direction of the plurality of light emitting elements. And
The connector line has two power supply lines, a positive voltage supply line and a negative voltage supply line,
The two power supply lines are entirely located on the front side of the substrate,
The two power supply lines are deformed into a predetermined shape by bending or bending in the same direction so as to be away from the light emitting element so that the light of the light emitting element is not blocked by the two power supply lines . Is a light source for lighting. The illumination light source according to claim 1, wherein the two power supply lines are transformed into the predetermined shape before being attached to the substrate. The illumination light source according to claim 1, wherein the two power supply lines are deformed into a predetermined shape so that a height from the substrate is constant. The illumination light source according to any one of claims 1 to 3, wherein the two power supply lines are deformed so as to be bent or curved in a horizontal direction with respect to a main surface of the substrate. The illumination light source according to claim 1, wherein the two power supply lines are in contact with the surface of the substrate. The illumination light source according to any one of claims 1 to 5, wherein the two power supply lines are fixed to the substrate with an adhesive or a tape. The translucent cover is a long cylindrical casing,
The light source for illumination according to claim 1, wherein the base is housed in the housing. An illumination device comprising the illumination light source according to any one of claims 1 to 7.

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