JP2015065094A - Light source for lighting and lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a light source for lighting in which a mouth piece is securely connected with a substrate.SOLUTION: A light source for lighting includes: a long substrate 11 in which LED elements 12 are disposed; a long housing 20 in which the substrate 11 is disposed; and a power feeding mouth piece 30 provided at a longitudinal end part of the housing 20. A longitudinal end part of the substrate 11 is covered by the power feeding mouth piece 30. The substrate 11 includes an engagement part 14 which engages with a structure fixed to the power feeding mouth piece 30.

Description

  The present invention relates to an illumination light source and an illumination device, for example, an illumination light source and an illumination device having a light emitting element such as a light emitting diode (LED).

  The LED is expected to be an alternative light source for various lamps such as fluorescent lamps and incandescent lamps which are conventionally known because of high efficiency and long life. In particular, product development of lamps using LEDs (LED lamps) has been actively promoted.

  As this type of LED lamp, for example, a straight tube type LED lamp (straight tube LED lamp) that replaces a straight tube fluorescent lamp is known (see Patent Document 1).

  Such a straight tube LED lamp includes a base provided at both ends of a long outer casing, an LED module, and a lighting circuit for lighting the LED module. The LED module includes, for example, a substrate and a plurality of LED elements mounted on the substrate.

JP 2009-043447 A

  However, the conventional illumination light source has a problem that the connection between the base and the substrate is weak.

  In the straight tube LED lamp described in Patent Document 1, an outer casing and a base for holding an LED module (substrate) are fixed inside. That is, the base and the substrate are only indirectly connected via the outer casing.

  Accordingly, the present invention has been made to solve the above-described problems, and an object thereof is to provide an illumination light source and an illumination device in which a base and a substrate are firmly connected.

  In order to solve the above problems, an illumination light source according to one embodiment of the present invention includes a long substrate in which a light emitting element is disposed, a long housing in which the substrate is disposed, and the housing. A base provided at a longitudinal end of the body, the longitudinal end of the substrate is covered by the base, and the substrate is locked to a structure fixed to the base. It has a locking part.

  The structure may be an adhesive bonded to the base or an internal structure of the base.

  Moreover, the said latching | locking part is a part of the said board | substrate, Comprising: The part located in the said nozzle | cap | die side from the said adhesive agent or the said internal structure in the longitudinal direction of the said board | substrate may be sufficient.

  Further, the substrate is provided with a slit having a shape cut out from an end surface in the short direction of the substrate, and the locking portion is a part of the surface of the substrate and forms the slit. The adhesive or the internal structure may be fixed to the base so as to pass through the slit.

  The substrate is provided with at least one of a convex portion, a concave portion, and a through hole, and the locking portion is a part of the surface of the substrate, and is at least one of the convex portion, the concave portion, and the through hole. It may be a part of the surface forming one.

  Further, the adhesive may be a silicone resin.

  A lighting device according to one embodiment of the present invention is a lighting device including the above-described lighting light source.

  According to the present invention, it is possible to provide an illumination light source and an illumination device in which a base and a substrate are firmly connected.

It is a general-view perspective view which shows an example of the straight tube | pipe LED lamp which concerns on Embodiment 1 of this invention. It is a top view which shows an example of the board | substrate which concerns on Embodiment 1 of this invention. It is sectional drawing which shows a part of example of the straight tube | pipe LED lamp which concerns on Embodiment 1 of this invention. It is a top view which shows an example of the board | substrate which concerns on the modification of Embodiment 1 of this invention. It is sectional drawing which shows a part of example of the straight tube | pipe LED lamp which concerns on the modification of Embodiment 1 of this invention. It is a top view which shows an example of the board | substrate which concerns on another modification of Embodiment 1 of this invention. It is sectional drawing which shows a part of example of the straight tube | pipe LED lamp which concerns on another modification of Embodiment 1 of this invention. It is a top view which shows an example of the board | substrate which concerns on another modification of Embodiment 1 of this invention. It is sectional drawing which shows a part of example of the straight tube | pipe LED lamp which concerns on another modification of Embodiment 1 of this invention. It is sectional drawing which shows a part of example of the straight tube | pipe LED lamp which concerns on another modification of Embodiment 1 of this invention. It is a general-view perspective view which shows a part of example of the straight tube | pipe LED lamp which concerns on Embodiment 2 of this invention. It is sectional drawing which shows a part of example of the straight tube | pipe LED lamp which concerns on Embodiment 2 of this invention. It is a general-view perspective view which shows an example of the illuminating device which concerns on Embodiment 3 of this invention.

  Below, the light source for illumination and the illuminating device which concern on embodiment of this invention are demonstrated in detail using drawing. Note that each of the embodiments described below shows a preferred specific example of the present invention. Therefore, the numerical values, shapes, materials, components, component arrangements, connection forms, and the like shown in the following embodiments are merely examples, and are not intended to 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 mimetic 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, which is an embodiment of a light source for illumination, and a lighting device including the straight tube LED lamp are illustrated.

(Embodiment 1)
An illumination light source according to Embodiment 1 of the present invention includes a long substrate in which a light emitting element is disposed, a long housing in which the substrate is disposed, and an end portion in the longitudinal direction of the housing. The base of the substrate is covered with a base, and the substrate has a locking portion for locking to a structure fixed to the base.

  First, a straight tube LED lamp according to Embodiment 1 of the present invention will be described. The straight tube LED lamp according to the present embodiment is an example of an illumination light source that replaces a conventional straight tube fluorescent lamp.

[Overall configuration of straight tube LED lamp]
First, an example of the configuration of a straight tube LED lamp according to the present embodiment will be described with reference to FIG.

  FIG. 1 is a schematic perspective view showing an example of a straight tube LED lamp 1 according to Embodiment 1 of the present invention. As shown in FIG. 1, the straight tube LED lamp 1 is for power supply fixed to each of an LED module 10, a long casing 20, and an end portion in the longitudinal direction (tube axis direction) of the casing 20. A base 30 and a non-feed base 40 are provided. The straight tube LED lamp 1 is, for example, a 40-shaped straight tube LED lamp, and the total length of the lamp is about 1200 mm.

  Hereinafter, each component of the straight tube LED lamp 1 will be described in detail.

[LED module]
As shown in FIG. 1, the LED module 10 is a light source of the straight tube LED lamp 1 and is disposed in the housing 20. Here, the LED module 10 may be disposed so as to be accommodated in the housing 20, or may be disposed so that the end portion protrudes from the housing 20.

  The LED module 10 according to the present embodiment 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 a plurality of LED elements 12. And a lighting circuit 13 for lighting. Although not shown, the LED module 10 includes a connection terminal that receives power for causing the LED elements 12 to emit light, and metal wiring that is patterned in a predetermined shape for electrically connecting the plurality of LED elements 12. Prepare.

  The board | substrate 11 is a elongate board | substrate with which several LED element 12 is arrange | positioned at the main surface (surface). Specifically, the substrate 11 is a rectangular substrate, the longitudinal direction (Y-axis direction in FIG. 1) is parallel to the longitudinal direction of the straight tubular casing 20, and the short direction (X in FIG. 1). It is arranged in the housing 20 so that the axial direction is parallel to the short direction of the housing 20. The board | substrate 11 is being fixed to the inner surface of the housing | casing 20 with the adhesive agent, for example. Alternatively, the substrate 11 may be placed on a placement surface of a heat sink (base) fixed in the housing 20. An adhesive used for bonding the substrate 11 and the housing 20 is, for example, silicone resin or cement.

  Specifically, the substrate 11 is a mounting substrate for mounting the LED element 12. The substrate 11 is, for example, a resin substrate based on resin, a metal base substrate based on metal, a ceramic substrate made of ceramic, or a glass substrate made of glass.

  The resin substrate may be made of, for example, a glass epoxy substrate made of glass fiber and epoxy resin (CEM-3, FR-4, etc.), a substrate made of paper phenol or paper epoxy (FR-1 etc.), or polyimide. For example, a flexible substrate having flexibility. The metal base substrate is, for example, an aluminum alloy substrate, an iron alloy substrate, or a copper alloy substrate having an insulating film formed on the surface. In the present embodiment, a CEM-3 double-sided substrate is used as the substrate 11.

  One end of the substrate 11 in the longitudinal direction is covered with a power supply cap 30. For example, the substrate 11 is disposed so that the end portion protrudes from the housing 20, and at least the protruding portion is covered with the power supply cap 30. The other end of the substrate 11 may be covered with the non-power feeding base 40.

  Here, the substrate 11 has a locking portion 14 that locks to a structure fixed to the power supply cap 30. Specifically, the structure fixed to the power supply base 30 is an adhesive bonded to the power supply base 30. That is, the substrate 11 has a locking portion 14 that locks to the adhesive bonded to the power supply cap 30. The detailed configuration of the substrate 11 will be described later.

  The LED element 12 is an example of a light emitting element and is mounted on the substrate 11. In the present embodiment, the plurality of LED elements 12 are mounted so as to be arranged in a line along the longitudinal direction of the substrate 11. As shown in FIG. 1, each of the plurality of LED elements 12 is disposed apart from each other.

  The LED element 12 is a so-called SMD type light emitting element in which an LED chip and a phosphor are packaged. The LED element 12 includes a package, an LED chip disposed in the package, and a sealing member that seals the LED chip. The LED element 12 is, for example, a white LED element that emits white light.

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

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

  The sealing member is a phosphor-containing resin including a phosphor that is a light wavelength converter, and converts light emitted from the LED chip into a predetermined wavelength (color conversion). The sealing member protects the LED chip by sealing the LED chip. The sealing member is filled in the recess of the package, and is sealed up to the opening surface of the recess.

The sealing member includes a material selected based on the color (wavelength) of light emitted from the LED chip and the color (wavelength) of light required as a light source. For example, in order to obtain white light when the LED chip is a blue LED chip, a phosphor-containing resin obtained by dispersing YAG (yttrium, aluminum, garnet) -based yellow phosphor particles in a silicone resin is used as a sealing member. Can be used. As a result, the yellow phosphor particles are excited by the blue light of the blue LED chip to emit yellow light, so that the sealing member emits white light as a combined light of the excited yellow light and the blue light of the blue LED chip. Is released. The sealing member may contain a light diffusing material such as silica (SiO ₂ ).

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

  The lighting circuit 13 is an LED lighting circuit for lighting the LED element 12 mounted on the LED module 10. The lighting circuit 13 is composed of one or a plurality of circuit elements (circuit parts).

  For example, the lighting circuit 13 adjusts and outputs a DC voltage input via the connection terminal to a predetermined polarity for causing the LED element 12 to emit light. The DC power output from the lighting circuit 13 is supplied to the LED element 12 of the LED module 10 via, for example, a metal wiring formed on the substrate 11.

  The circuit element is directly mounted on the substrate 11 using the substrate 11 of the LED module 10. The circuit element is, for example, a rectifier circuit, a detection resistor, or a fuse element. In addition, a resistor, a capacitor, a coil, a diode, a transistor, or the like may be used as necessary.

  The connection terminal (electrode terminal) 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 connection terminal according to the present embodiment is configured as a die, and has a resin die and a conductive portion (pin) for receiving DC power. For example, the conductive portion is connected to a lighting circuit.

  The connection terminal may be a metal electrode patterned in a rectangular shape instead of the die. For example, one end of a lead wire for supplying power to the LED element 12 is connected to a power supply pin of the power supply base 30, and the other end of the lead wire is connected to a metal electrode of the substrate 11. At this time, one end and the other end of the lead wire may be soldered, respectively.

  The metal wiring contains a metal such as copper (Cu) and is patterned on the substrate 11 in a predetermined shape.

  In order to improve the light extraction efficiency of the LED module 10, a white paint (white resist) may be applied to the surface of the substrate 11. Since the white resist has high light reflectivity, the light extraction efficiency of the LED module 10 can be improved. Further, by forming the white resist, the insulating property (breakdown voltage) of the substrate 11 can be improved, and oxidation of the metal wiring can be suppressed.

[Case]
The case 20 is a long case in which the substrate 11 is disposed. Specifically, the housing 20 is a long translucent cover having translucency that covers part or all of the LED module 10.

  For example, as illustrated in FIG. 1, the housing 20 is a long cylindrical body having openings at both ends. Specifically, the housing 20 is a straight tubular outer tube and is made of a transparent resin material or glass. The casing 20 is a cylinder whose cross section in the short direction (XZ cross section) is circular.

  For example, the casing 20 is a glass bulb (clear bulb) made of silica glass that is transparent to visible light. In this case, the LED module 10 disposed in the housing 20 can be viewed from the outside of the housing 20.

  Specifically, the housing 20 is a glass tube (glass bulb) containing soda-lime glass having 70 to 72% silica as a main component and having a thermal conductivity of about 1.0 W / m · K. Alternatively, the housing 20 may be a plastic tube containing a resin material such as acrylic (PMMA) or polycarbonate (PC).

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

  Further, the light diffusing function may be realized by a lens structure provided inside or outside the housing 20, or a concave portion or a convex portion formed on the inner surface or the outer surface of the housing 20. For example, the light diffusion function can be realized by printing a dot pattern on the inner surface or the outer surface of the housing 20 or processing a part of the housing 20. Alternatively, the light diffusing function can be realized by molding the housing 20 itself using a resin material in which a light diffusing material is dispersed.

  Thus, by providing the housing 20 with the light diffusing function, it is possible to diffuse the light emitted from the LED module 10 when the light passes through the housing 20. For example, if the SMD type LED elements 12 are arranged apart from each other as in the present embodiment, there is a possibility that a light crushing feeling (luminance variation) may occur. On the other hand, by providing the housing 20 with a light diffusing function, it is possible to suppress the feeling of being crushed.

[Feeding cap]
The power supply base 30 is an example of a base, and is a power supply base for supplying power to the LED module 10. The power supply cap 30 is provided on one of the ends of the casing 20 or the substrate 11 in the longitudinal direction (Y-axis direction). The power supply cap 30 receives power for lighting the LED element 12 from the outside of the lamp.

  The power supply cap 30 is configured in a cap shape so as to cover one end of the casing 20 in the longitudinal direction. That is, the power supply cap 30 has a bottomed cylindrical shape, and is provided so as to cover one end of the casing 20 in the longitudinal direction. For example, the power supply cap 30 is bonded to one end of the housing 20 with an adhesive. In the present embodiment, the power supply cap 30 is a cylinder having an opening at one end and a bottom at the other.

  The power supply base 30 includes a base body 31 and power supply pins 32.

  The base body 31 forms an outer shape of the power supply base 30 and has a bottomed cylindrical shape having an opening and a bottom surface. The base body 31 according to the present embodiment has a bottomed cylindrical shape, and has a circular opening and a disk-shaped bottom surface.

  The base body 31 is made of a resin material such as polybutylene terephthalate (PBT). Here, the power supply cap 30 is produced, for example, by insert molding using a power supply pin 32 and a resin material. Note that the power supply base 30 can be manufactured by press-fitting the power supply pins 32 into the base body 31 that is a resin molded body.

  The power supply pins 32 are an example of a cap pin, and are a pair of conductive pins that receive power for causing the LED module 10 to emit light from an external device such as a lighting fixture. For example, the power feed pin 32 is made of a metal material such as brass. By attaching the power supply pin 32 to the receiving fixture of the lighting fixture, the power supply pin 32 can receive DC power from a power supply device built in the lighting fixture. The power supply pin 32 also functions as an attachment pin for detachably attaching to a light receiving device of a lighting fixture.

  Specifically, the power supply pin 32 is provided so as to penetrate the bottom surface of the base body 31. The power supply pin 32 protrudes outward from the outer surface of the bottom surface of the base body 31 and protrudes from the inner surface of the bottom surface of the base body 31 toward the opening. Although not shown, a portion of the power supply pin 32 that protrudes from the inner surface of the bottom surface of the base body 31 toward the opening is connected to a connection terminal provided on the substrate 11 by a lead wire or the like.

  The power supply base 30 according to the present embodiment is a GX16t-5 base (L-shaped pin base) in a straight tube LED lamp conforming to JIS C 7709-1, and therefore, the power supply pin 32 is L-shaped. .

[Non-powered cap]
The non-power supply base 40 is an example of a base, and is a non-power supply side base having a function of attaching the straight tube LED lamp 1 to a lighting fixture. As shown in FIG. 1, the non-power feeding base 40 is provided on the other end of the casing 20 or the substrate 11 in the longitudinal direction (Y-axis direction). Note that the non-power supply base 40 may ground (ground) a predetermined region of the LED module 10 via a lighting fixture.

  The non-power supply base 40 is configured in a cap shape so as to cover the other end of the casing 20 in the longitudinal direction. That is, the non-power feeding base 40 has a bottomed cylindrical shape and is provided so as to cover the other end of the casing 20 in the longitudinal direction. For example, the non-power feeding base 40 is bonded to the other end of the housing 20 with an adhesive. In the present embodiment, the non-power feeding base 40 is a cylinder having an opening at one end and a bottom at the other.

  The non-power supply base 40 includes a base body 41 and a non-power supply pin 42.

  The base body 41 forms an outer shape of the non-power feeding base 40 and has a bottomed cylindrical shape having an opening and a bottom surface. The base body 41 according to the present embodiment has a bottomed cylindrical shape, and has a circular opening and a disk-shaped bottom surface.

  The base body 41 is made of a resin material such as polybutylene terephthalate. Here, the non-power supply base 40 is produced by insert molding using the non-power supply pin 42 and a resin material, for example. In addition, the non-power feeding base 40 can also be produced by press-fitting the non-power feeding pins 42 into the base body 41 which is a resin molded body.

  The non-power supply pin 42 is an example of a cap pin, and is an attachment pin for attaching the straight tube LED lamp 1 to a lighting fixture. For example, the non-feed pin 42 is a conductive pin having a T-shaped cross section made of a metal material such as brass.

  The non-feeding pin 42 is provided so as to penetrate the bottom surface of the base body 41. The non-power feeding pin 42 protrudes outward from the outer surface of the bottom surface of the base body 41 and protrudes from the inner surface of the bottom surface of the base body 41 toward the opening. The non-feeding pin 42 only needs to protrude outward from the outer surface of the bottom surface of the base body 41, and the inner surface side may be embedded in the base body 41.

  Note that, when the non-power supply base 40 grounds a predetermined region of the LED module 10, the non-power supply pin 42 and the substrate 11 are connected.

[substrate]
Subsequently, a more detailed configuration of the substrate 11 according to the present embodiment will be described.

  FIG. 2 is a plan view showing an example of the substrate 11 according to Embodiment 1 of the present invention. Moreover, FIG. 3 is sectional drawing which shows a part of example of the straight tube | pipe LED lamp 1 which concerns on Embodiment 1 of this invention. Specifically, FIG. 3 shows an AA cross section of FIG.

  As shown in FIGS. 2 and 3, the substrate 11 has a locking portion 14 that locks to the adhesive 50 bonded to the power supply cap 30. In addition, the substrate 11 is provided with a slit 15 having a shape cut out from an end surface in the short direction of the substrate 11. For example, the slit 15 is provided by cutting out the rectangular substrate 11 from the end face in the short direction.

  The end surface of the substrate 11 corresponds to the side surface of the substrate 11 and is a surface that intersects two main surfaces (front surface and back surface). Therefore, the end surface in the short direction of the substrate 11 is a surface corresponding to the long side of the substrate 11, specifically, a side surface orthogonal to the short direction of the substrate 11.

  The substrate 11 has, for example, a length of 1150 to 1200 mm (longitudinal direction), a width of 5 to 25 mm (short side direction), and a thickness of 0.3 to 2.0 mm. The substrate 11 is longer than the housing 20 in the longitudinal direction. On the surface of the substrate 11, the lighting circuit 13 and the plurality of LED elements 12 are arranged side by side in the longitudinal direction of the substrate 11.

  The locking portion 14 is a part of the substrate 11 and is a portion located on the power supply base 30 side from the adhesive 50 in the longitudinal direction of the substrate 11. Here, the feeding base 30 side is, for example, the bottom side of the feeding base 30.

  Specifically, the locking portion 14 is a part of the surface of the substrate 11 and a part of the surface that forms the slit 15. More specifically, the locking portion 14 is a surface closer to the end of the substrate 11 in the longitudinal direction of the substrate 11 than the other surfaces among the surfaces forming the slit 15, and is a part of the side surface of the substrate 11. It is.

  The slit 15 is a slit having a shape cut out from the end surface of the substrate 11 in the short direction. For example, the slit 15 is a rectangular slit. In the example shown in FIG. 2, the slits 15 are formed from both sides of the substrate 11. That is, the slit 15 is formed by cutting the substrate 11 in the lateral direction from both sides of the end surface orthogonal to the lateral direction of the substrate 11.

  The width of the slit 15 (longitudinal direction of the substrate 11) is 0.5 to 5 mm. Moreover, the length of the slit 15 (short direction of the substrate 11) is 5 to 20 mm. Note that the length of the slit 15 may be 10 to 90% of the width of the substrate 11.

  The slit 15 is included in a region covered by the power supply base 30. It is formed within a range of 1 to 70 mm in the longitudinal direction from the end of the substrate 11. At this time, for example, the length of the feeding base 30 (longitudinal direction of the substrate 11) is 10 to 70 mm.

  The adhesive 50 is an example of a structure fixed to the power supply base 30. The adhesive 50 is applied in the base body 31 to fix the substrate 11 and the power supply base 30, and adheres the substrate 11 and the base body 31. At this time, the adhesive 50 adheres not only to the substrate 11 but also to the housing 20 and the base body 31. For example, the adhesive 50 is a fluid having a high viscosity, and is a silicone resin or cement.

  As shown in FIG. 3, the adhesive 50 is applied so as to fill the slit 15. More specifically, the adhesive 50 is further applied so as to cover the end of the substrate 11. The cured adhesive 50 is fixed to the feeding base 30 so as to pass through the slit 15.

[effect]
As described above, the locking portion 14 locks the adhesive 50 filled in the slit 15 and hardened, and in particular, the connection between the substrate 11 and the power supply cap 30 in the longitudinal direction of the substrate 11 is further strengthened. can do. For example, when the substrate 11 does not have the locking portion 14, the substrate 11 does not have a portion that is caught by the power supply base 30 in a direction away from the power supply base 30. Therefore, when the adhesive force of the adhesive 50 to the substrate 11 becomes weak, the substrate 11 may fall out from the power supply base 30 in the longitudinal direction of the substrate 11.

  On the other hand, in the straight tube LED lamp 1 according to the first embodiment, since the substrate 11 has the locking portion 14, the substrate 11 and the adhesive 50 are locked by the locking portion 14. That is, even if the adhesive force of the adhesive 50 to the substrate 11 is weakened, the possibility that the substrate 11 falls off due to the locking portion 14 being caught by the adhesive 50 can be reduced.

  In addition, since the adhesive 50 is a fluid having a high viscosity before being cured, a structure suitable for the slit 15 provided in the substrate 11 can be easily formed. In other words, the adhesive 50 can easily form a structure as an object to be locked by the locking portion 14. For example, the adhesive 50 can easily form a structure that engages with the slit 15, specifically, a structure that fills the slit 15. Therefore, the freedom degree of the shape of the board | substrate 11 and the shape of the nozzle | cap | die 30 for electric power feeding can be raised.

  As described above, the illumination light source according to the present embodiment includes a long substrate in which a light emitting element is disposed, a long housing in which a substrate is disposed, and a longitudinal direction of the housing. A base provided at the end, the end in the longitudinal direction of the substrate is covered with the base, and the substrate has a locking portion for locking to a structure fixed to the base.

  Thereby, since a latching | locking part latches to the structure fixed to the nozzle | cap | die, the connection of a board | substrate and a nozzle | cap | die can be strengthened more. For example, it is possible to reduce the possibility of the substrate falling off from the base in the longitudinal direction.

  Moreover, since the edge part of the longitudinal direction of a board | substrate is covered with the nozzle | cap | die, a board | substrate and a nozzle | cap | die can be fixed inside a nozzle | cap | die. Therefore, for example, the base that covers the structure that contributes to fixing the substrate and the base can be covered, and a larger number of light emitting elements can be arranged than in the case where the structure is not covered by the base. Thereby, the illumination intensity of the light source for illumination can also be raised.

  Further, the structure may be an adhesive bonded to the base.

  Thereby, since the latching | locking part latches to the adhesive agent adhere | attached on the nozzle | cap | die, the connection of a board | substrate and a nozzle | cap | die can be strengthened more. For example, when the adhesive is also bonded to the substrate, even if the adhesive force of the adhesive to the substrate becomes weak, the possibility that the substrate falls off due to the locking portion being caught by the adhesive can be reduced. .

  Furthermore, the use of an adhesive increases the degree of freedom of the shape of the substrate and the shape of the base. For example, since the adhesive is a fluid having a high viscosity before being cured, the shape thereof can be freely changed. Therefore, the adhesive has a shape suitable for the structure (slit, convex part, concave part, through hole, etc.) provided on the substrate. That is, the adhesive can easily form a structure as an object to be locked by the locking portion. Therefore, by using the adhesive, the connection between the substrate and the base can be further strengthened regardless of the shape of the substrate and the shape of the base.

  Moreover, the latching | locking part may be a part which is a part of a board | substrate and is located in a nozzle | cap | die side rather than an adhesive agent in the longitudinal direction of a board | substrate.

  Thereby, since the latching | locking part is located in a base | substrate side rather than an adhesive agent in the longitudinal direction of a board | substrate, a latching | locking part is caught by the adhesive agent adhere | attached on the nozzle | cap | die in the direction which a board | substrate and a nozzle | cap | die separate. Therefore, the connection between the substrate and the base can be further strengthened.

  Further, the substrate is provided with a slit having a shape cut out from the end surface in the short direction of the substrate, and the locking portion is a part of the surface of the substrate and a part of the surface forming the slit. Yes, the adhesive may be fixed to the base so as to pass through the slit.

  Thereby, since the latching | locking part latches to the adhesive agent which passed the slit and was adhere | attached on the nozzle | cap | die, the connection of a board | substrate and a nozzle | cap | die can be strengthened more.

  In the present embodiment, an example in which the slits 15 having a shape cut out from both sides of the end surface (long side) orthogonal to the short direction of the substrate 11 is shown, but is orthogonal to the short direction of the substrate 11. You may provide the slit of the shape notched from the one side of an end surface (long side).

  Moreover, although the example in which the slit 15 is formed so as to be cut out in the short direction of the substrate 11 has been described, the direction in which the slit 15 is formed is not limited thereto. The slit 15 may be formed so as to be cut out in the longitudinal direction of the substrate 11, or may be formed so as to be cut out in a direction inclined 45 degrees from the short side direction of the substrate 11.

  Moreover, although the example in which the slit 15 is rectangular has been described, the shape of the slit 15 is not limited thereto. The slit 15 may be a triangular cutout or a curved cutout such as an arc. A plurality of slits 15 may be provided. Moreover, you may provide a slit so that the edge part of the board | substrate 11 may become a bowl shape.

(Modification of Embodiment 1)
Then, the modification of Embodiment 1 of this invention is demonstrated. In Embodiment 1, although the case where the slit is provided in the board | substrate was demonstrated, you may provide the convex part which protruded to the outward of the board | substrate from the end surface orthogonal to the transversal direction of a board | substrate instead of a slit.

  FIG. 4 is a plan view showing an example of a substrate 11a according to a modification of the first embodiment of the present invention. FIG. 5 is a cross-sectional view showing a part of an example of straight tube LED lamp 1a according to a modification of the first embodiment of the present invention. Specifically, FIG. 5 shows a BB cross section of FIG.

  As shown in FIGS. 4 and 5, the substrate 11 a has a locking portion 14 a that locks the adhesive 50 a bonded to the power supply cap 30. Further, the substrate 11a is provided with a convex portion 16 protruding outward from the substrate 11a from an end surface orthogonal to the short direction of the substrate 11a.

  The board 11a is different from the board 11 according to the first embodiment in that the board 11a has a locking part 14a instead of the locking part 14. Specifically, the substrate 11 a is different in that a convex portion 16 is provided instead of the slit 15.

  The locking portion 14a is a part of the substrate 11a, and is a portion that is located closer to the feeding base 30 than the adhesive 50a in the longitudinal direction of the substrate 11a. Specifically, the locking portion 14a is a part of the surface of the substrate 11a and a part of the surface forming the convex portion 16. More specifically, the locking portion 14a is a surface that is away from the end of the substrate 11a in the longitudinal direction of the substrate 11a in the longitudinal direction of the substrate 11a among the surfaces that form the convex portion 16, and is on the side surface of the substrate 11a. It is a part.

  The convex portion 16 is a convex portion that protrudes outward from the end surface of the substrate 11a from an end surface orthogonal to the short direction of the substrate 11a. For example, the convex part 16 is a rectangular convex part. In the example shown in FIG. 4, the convex portions 16 are formed on both sides of an end surface (long side) orthogonal to the short direction of the substrate 11a.

  The width of the convex portion 16 (longitudinal direction of the substrate 11a) is 1 to 20 mm. Moreover, the length of the convex part 16 (short direction of the board | substrate 11a) is 0.5-12 mm. In addition, the length of the convex part 16 is good also as 5 to 45% of the width | variety of the board | substrate 11a.

  Further, the convex portion 16 is included in a region covered with the power supply base 30. It forms in the range of 1-70 mm in the longitudinal direction from the edge part of the board | substrate 11a. At this time, for example, the length of the power supply cap 30 (longitudinal direction of the substrate 11a) is 10 to 70 mm.

  The adhesive 50 a is an example of a structure fixed to the power supply base 30. Similar to the adhesive 50, the adhesive 50 a is applied in the base body 31 in order to fix the substrate 11 a and the power supply base 30, and adheres the substrate 11 a and the base body 31. At this time, the adhesive 50 a adheres not only to the substrate 11 a but also to the housing 20 and the base body 31. For example, the adhesive 50a is a fluid having a high viscosity, and is a silicone resin or cement.

  As shown in FIG. 5, the adhesive 50 a is applied so as to cover the convex portion 16. More specifically, the adhesive 50a is further applied so as to cover the end of the substrate 11a. The cured adhesive 50 a is fixed to the feeding base 30 so as to cover at least a part or the whole of the convex portion 16.

  The locking portion 14a is locked to the adhesive 50a that is applied and cured so as to cover the convex portion 16, and in particular, the connection between the substrate 11a and the feeding base 30 in the longitudinal direction of the substrate 11a is further strengthened. be able to.

  As described above, in the straight tube LED lamp 1a according to the modification of the first embodiment, since the substrate 11a has the locking portion 14a, the substrate 11a and the adhesive 50a are locked by the locking portion 14a. That is, as in the first embodiment, even if the adhesive force of the adhesive 50a to the substrate 11a becomes weak, the possibility that the substrate 11a falls out from the power supply base 30 in the longitudinal direction of the substrate 11a can be reduced. .

  Further, since the adhesive 50a is a fluid having a high viscosity before being cured, a structure suitable for the convex portion 16 provided on the substrate 11a can be easily formed. In other words, the adhesive 50a can easily form a structure as an object to be locked by the locking portion 14a. For example, the adhesive 50 a can easily form a structure that engages with the convex portion 16, specifically, a structure that covers the convex portion 16. Therefore, the freedom degree of the shape of the board | substrate 11a and the shape of the nozzle | cap | die 30 for electric power feeding can be raised.

  Moreover, you may provide a through-hole in a board | substrate instead of a convex part.

  FIG. 6 is a plan view showing an example of a substrate 11b according to another modification of the first embodiment of the present invention. Moreover, FIG. 7 is sectional drawing which shows a part of example of the straight tube | pipe LED lamp 1b which concerns on another modification of Embodiment 1 of this invention. Specifically, FIG. 7 shows a CC cross section of FIG.

  As shown in FIGS. 6 and 7, the substrate 11 b has a locking portion 14 b that locks to the adhesive 50 b bonded to the power supply cap 30. Further, the substrate 11b is provided with a through hole 17 penetrating in the main surface direction of the substrate 11b. Here, the main surface direction is a direction intersecting the main surface (front surface or back surface) of the substrate 11b, and specifically, the normal direction of the main surface of the substrate 11b.

  The board 11b is different from the board 11 according to the first embodiment in that the board 11b has a latching part 14b instead of the latching part 14. Specifically, the substrate 11 b is different in that a through hole 17 is provided instead of the slit 15.

  The locking portion 14b is a part of the substrate 11b, and is a portion located on the power supply base 30 side from the adhesive 50b in the longitudinal direction of the substrate 11b. Specifically, the locking portion 14 b is a part of the surface of the substrate 11 b and a part of the surface that forms the through hole 17. More specifically, the locking portion 14b is a surface closer to the end portion of the substrate 11b in the longitudinal direction of the substrate 11b than the other surfaces among the surfaces forming the through holes 17.

  The through hole 17 is a through hole penetrating the substrate 11b in the thickness direction. For example, the through hole 17 is a circular through hole. In the example shown in FIG. 6, the through-hole 17 is formed in the center of the short side direction of the board | substrate 11b.

  The diameter of the through hole 17 is 1 to 23 mm. Note that the diameter of the through hole 17 may be 5 to 90% of the width of the substrate 11b.

  Further, the through hole 17 is included in a region covered by the power supply base 30. It is formed within a range of 1 to 70 mm in the longitudinal direction from the end of the substrate 11b. At this time, for example, the length of the power supply cap 30 (longitudinal direction of the substrate 11b) is 10 to 70 mm.

  The adhesive 50 b is an example of a structure fixed to the power supply base 30. Similar to the adhesive 50, the adhesive 50 b is applied in the base body 31 to fix the substrate 11 b and the power supply base 30, and adheres the substrate 11 b and the base body 31. For example, the adhesive 50b is a fluid having a high viscosity, and is a silicone resin or cement.

  As shown in FIG. 7, the adhesive 50 b is applied so as to fill the through hole 17. The cured adhesive 50 b is fixed to the power feeding base 30 so as to pass through the through hole 17.

  The locking portion 14b is locked to the adhesive 50b filled and cured in the through hole 17, and in particular, the connection between the substrate 11b and the power supply cap 30 in the longitudinal direction of the substrate 11b can be further strengthened. it can.

  As described above, in the straight tube LED lamp 1b according to another modification of the first embodiment, since the substrate 11b has the locking portion 14b, the substrate 11b and the adhesive 50b are locked by the locking portion 14b. To do. That is, as in the first embodiment, even if the adhesive force of the adhesive 50b to the substrate 11b is weakened, the possibility that the substrate 11b falls out from the power supply base 30 in the longitudinal direction of the substrate 11b can be reduced. .

  Further, since the adhesive 50b is a fluid having a high viscosity before being cured, a structure suitable for the through hole 17 provided in the substrate 11b can be easily formed. In other words, the adhesive 50b can easily form a structure as an object to be locked by the locking portion 14b. For example, the adhesive 50 b can easily form a structure that engages with the through hole 17, specifically, a structure that fills the through hole 17. Therefore, the freedom degree of the shape of the board | substrate 11b and the shape of the nozzle | cap | die 30 for electric power feeding can be raised.

  In addition, the opening (cross section) of the through-hole 17 may not be circular but may be rectangular. Further, the substrate 11b may be provided with a plurality of through holes 17, and the region where the through holes 17 are formed is not limited to the center in the short direction of the substrate 11b. When providing a several through-hole, a shape may mutually differ.

  Moreover, you may provide a recessed part in the surface of a board | substrate instead of a through-hole.

  FIG. 8 is a plan view showing an example of a substrate 11c according to another modification of the first embodiment of the present invention. Moreover, FIG. 9 is sectional drawing which shows a part of example of the straight tube | pipe LED lamp 1c which concerns on another modification of Embodiment 1 of this invention. Specifically, FIG. 9 shows a DD cross section of FIG.

  As shown in FIGS. 8 and 9, the substrate 11 c has a locking portion 14 c that locks on the adhesive 50 c bonded to the power supply cap 30. The substrate 11c is provided with a recess 18 that is recessed in the main surface direction of the substrate 11c.

  The board 11c is different from the board 11 according to the first embodiment in that the board 11c has a latching part 14c instead of the latching part 14. Specifically, the substrate 11 c is different in that a recess 18 is provided instead of the slit 15.

  The locking portion 14c is a part of the substrate 11c, and is a portion that is located closer to the feeding base 30 than the adhesive 50c in the longitudinal direction of the substrate 11c. Specifically, the locking portion 14 c is a part of the surface of the substrate 11 c and a part of the surface that forms the recess 18. More specifically, the locking portion 14c is a surface closer to the end portion of the substrate 11c in the longitudinal direction of the substrate 11c than the other surfaces among the surfaces forming the recesses 18.

  The recess 18 is a recess that is recessed in the main surface direction of the substrate 11c. For example, the cross section of the recess 18 that is orthogonal to the short direction of the substrate 11c is a cross section having a smooth curve, for example, a semicircular cross section. In addition, the recessed part 18 may be a recessed part which consists of a discontinuous level | step difference instead of the recessed part formed with the smooth curved surface.

  The width of the recess 18 (longitudinal direction of the substrate 11c) is 1 to 70 mm. Further, the length of the recess 18 (in the short direction of the substrate 11c) is 1 to 25 mm, and as an example, is the same as the width of the substrate 11c. Note that the length of the recess 18 may be 5 to 100% of the width of the substrate 11c.

  Further, the recess 18 is included in a region covered by the power supply base 30. It is formed within a range of 1 to 70 mm in the longitudinal direction from the end of the substrate 11c. At this time, for example, the length of the power supply cap 30 (longitudinal direction of the substrate 11c) is 10 to 70 mm.

  The adhesive 50 c is an example of a structure fixed to the power supply base 30. Similar to the adhesive 50, the adhesive 50 c is applied in the base body 31 in order to fix the substrate 11 c and the power supply base 30, and adheres the substrate 11 c and the base body 31. For example, the adhesive 50c is a fluid having a high viscosity, and is a silicone resin or cement.

  As shown in FIG. 9, the adhesive 50 c is applied so as to fill the recess 18. More specifically, the adhesive 50c is further applied so as to cover the end of the substrate 11c. The cured adhesive 50 c is fixed to the power supply base 30 so as to fill at least a part or all of the recess 18.

  The locking portion 14c is locked to the adhesive 50c that has been applied and hardened so as to fill the recess 18, and in particular, the connection between the substrate 11c and the power supply cap 30 in the longitudinal direction of the substrate 11c is further strengthened. be able to.

  As described above, in the straight tube LED lamp 1c according to another modification of the first embodiment, since the substrate 11c has the locking portion 14c, the substrate 11c and the adhesive 50c are locked by the locking portion 14c. To do. That is, as in the first embodiment, even if the adhesive force of the adhesive 50c to the substrate 11c is weakened, the possibility that the substrate 11c falls off from the power supply base 30 in the longitudinal direction of the substrate 11c can be reduced. .

  Further, since the adhesive 50c is a fluid having a high viscosity before being cured, it is possible to easily form a structure suitable for the recess 18 provided in the substrate 11c. In other words, the adhesive 50c can easily form a structure as an object to be locked by the locking portion 14c. For example, the adhesive 50 c can easily form a structure that engages with the recess 18, specifically, a structure that fills the recess 18. Therefore, the freedom degree of the shape of the board | substrate 11c and the shape of the nozzle | cap | die 30 for electric power feeding can be raised.

  Moreover, you may provide the convex part which protruded in the main surface direction instead of the recessed part dented in the main surface direction.

  FIG. 10 is a cross-sectional view showing a part of an example of a straight tube LED lamp 1d according to another modification of the first embodiment of the present invention.

  The locking portion 14d is a part of the substrate 11d, and is a portion located on the power supply base 30 side from the adhesive 50d in the longitudinal direction of the substrate 11d. Specifically, the locking portion 14d is a part of the surface of the substrate 11d and a part of the surface forming the convex portion 19. More specifically, the locking portion 14d is a surface closer to the end portion of the substrate 11d in the longitudinal direction of the substrate 11d than the other surfaces among the surfaces forming the convex portion 19.

  The convex portion 19 is a convex portion protruding in the main surface direction of the substrate 11d. For example, the cross section of the convex portion 19 that is orthogonal to the short direction of the substrate 11d is a cross section having a smooth curve, for example, a semicircular cross section. In addition, the convex part 19 may be a convex part which consists of a discontinuous level | step difference instead of the convex part formed with the smooth curved surface.

  The width of the convex portion 19 (longitudinal direction of the substrate 11d) is 1 to 70 mm. Further, the length of the convex portion 19 (short direction of the substrate 11d) is 1 to 25 mm, and as an example, is the same as the width of the substrate 11d. In addition, the length of the convex part 19 is good also as 5 to 100% of the width | variety of the board | substrate 11d.

  Further, the convex portion 19 is included in a region covered by the power supply base 30. It is formed within the range of 1 to 70 mm in the longitudinal direction from the end of the substrate 11d. At this time, for example, the length of the feeding base 30 (longitudinal direction of the substrate 11d) is 10 to 70 mm.

  The adhesive 50 d is an example of a structure fixed to the power supply base 30. Similar to the adhesive 50, the adhesive 50 d is applied in the base body 31 to fix the substrate 11 d and the power supply base 30, and adheres the substrate 11 d and the base body 31. For example, the adhesive 50d is a fluid having a high viscosity, and is a silicone resin or cement.

  As shown in FIG. 10, the adhesive 50 d is applied so as to cover the convex portion 19. More specifically, the adhesive 50d is further applied so as to cover the end of the substrate 11d. The cured adhesive 50d is fixed to the feeding base 30 so as to cover at least a part or the whole of the convex portion 19.

  The locking portion 14d locks against the adhesive 50d that has been applied and cured so as to cover the convex portion 19, and in particular, the connection between the substrate 11d and the feeding base 30 in the longitudinal direction of the substrate 11d is further strengthened. Can be.

  As described above, in the straight tube LED lamp 1d according to another modification of the first embodiment, since the substrate 11d has the locking portion 14d, the substrate 11d and the adhesive 50d are locked by the locking portion 14d. To do. That is, as in the first embodiment, even if the adhesive force of the adhesive 50d to the substrate 11d is weakened, the possibility that the substrate 11d falls out of the power supply base 30 in the longitudinal direction of the substrate 11d can be reduced. .

  Further, since the adhesive 50d is a fluid having a high viscosity before being cured, a structure suitable for the convex portion 19 provided on the substrate 11d can be easily formed. In other words, the adhesive 50d can easily form a structure as an object to be locked by the locking portion 14d. For example, the adhesive 50 d can easily form a structure that engages with the convex portion 19, specifically, a structure that covers the convex portion 19. Therefore, the freedom degree of the shape of the board | substrate 11d and the shape of the nozzle | cap | die 30 for electric power feeding can be raised.

  As described above, in the illumination light source according to the modification of the first embodiment, the substrate is provided with at least one of the convex portion, the concave portion, and the through hole, and the locking portion is a part of the surface of the substrate. And it may be a part of the surface which forms at least 1 of a convex part, a crevice, and a penetration hole.

  Thereby, a latching | locking part latches to the structure which passed through the through-hole and was fixed to the nozzle | cap | die, for example. Or the latching | locking part is a structure filled with at least one part of the recessed part, Comprising: It latches to the structure fixed to the nozzle | cap | die. Or the latching | locking part is a structure which covers at least one part of a convex part, Comprising: It latches to the structure fixed to the nozzle | cap | die. Therefore, the connection between the substrate and the base can be further strengthened.

  Further, in another modification of the first embodiment, the example in which the concave portion 18 or the convex portion 19 having a uniform width (longitudinal direction of the substrate) is described, but the width may not be uniform. In addition, although the example in which the length of the concave portion 18 or the convex portion 19 (short direction of the substrate) is the same as the width of the substrate has been shown, the length may be shorter than the width of the substrate.

  Moreover, although the recessed part 18 or the convex part 19 was formed in the surface of a board | substrate, you may form in a back surface or may form in both sides of a surface and a back surface. Moreover, you may provide the some recessed part 18 or the convex part 19 in at least one of the surface and a back surface. When providing a some recessed part or convex part, a shape may mutually differ.

  Further, although the example in which the substrate is locked to the structure fixed to the power supply base 30 has been described, the substrate may be locked to the structure fixed to the non-power supply base 40. The substrate may be locked to both the power supply base 30 and the non-power supply base 40.

  Further, the locking portion may not be a part of the substrate. For example, another structure fixed to the substrate may be used. For example, the engaging portion may be an engaging member such as a screw fixed to the substrate. By applying the adhesive so as to cover the engagement member such as a screw fixed to the substrate, the engagement member has the same function as the above-described convex portion 19.

(Embodiment 2)
In the illumination light source according to Embodiment 2 of the present invention, the substrate has a locking portion that locks to the internal structure of the base.

  FIG. 11 is a schematic perspective view showing a part of an example of the straight tube LED lamp 100 according to Embodiment 2 of the present invention. FIG. 12 is a cross-sectional view showing a part of an example of straight tube LED lamp 100 according to Embodiment 2 of the present invention. Specifically, FIG. 12 shows an EE cross section of FIG.

  As shown in FIG. 11, the straight tube LED lamp 100 according to the present embodiment includes a power supply base 310 instead of the power supply base 30 as compared with the straight tube LED lamp 1 according to the first embodiment. . Note that the housing 20 is not shown in FIG.

  The power supply base 310 is an example of a base and is a power supply base for supplying power to the LED module 10. The power supply base 310 is provided on one of the longitudinal ends of the housing 20 or the substrate 11. The power supply base 310 receives power for lighting the LED element 12 from the outside of the lamp.

  The power supply base 310 is configured in a cap shape so as to cover one end of the casing 20 in the longitudinal direction. That is, the power supply base 310 has a bottomed cylindrical shape, and is provided so as to cover one end of the casing 20 in the longitudinal direction. For example, the power supply base 310 is bonded to one end of the housing 20 with an adhesive. In the present embodiment, power feeding base 310 is a cylinder having an opening at one end and a bottom at the other.

  The power supply base 310 includes a base body 311 and power supply pins 32.

  The base body 311 has an outer shape of the power supply base 310 and has a bottomed cylindrical shape having an opening and a bottom surface. The base body 311 according to the present embodiment has a bottomed cylindrical shape, and has a circular opening and a disk-shaped bottom surface.

  The base body 311 is made of a resin material such as polybutylene terephthalate. The base body 311 is produced, for example, by insert molding using the power feed pin 32 and a resin material.

  The base body 311 includes a protrusion 312 as shown in FIG.

  The protrusion 312 is an example of a structure fixed to the power supply base 310. Specifically, the protrusion 312 is an internal structure of the power supply base 310, for example, an internal structure of the base body 311. More specifically, the protrusion 312 protrudes inward from the inner surface of the power supply base 310.

  The protrusion 312 is provided so as to pass through at least a part of the slit 15 provided in the substrate 11 when the substrate 11 is disposed in the power supply base 310. The shape of the protrusion 312 is designed based on the shape of the slit 15 provided in the substrate 11.

  For example, as shown in FIGS. 11 and 12, the width of the protrusion 312 (longitudinal direction of the substrate 11) is the same as the width of the slit 15. In other words, by fitting the protruding portion 312 and the slit 15 together, the substrate 11 is restricted from moving at least in the longitudinal direction.

  The locking portion 14 of the substrate 11 is locked in the longitudinal direction of the substrate 11 with respect to the protrusion 312. That is, the locking portion 14 is a part of the substrate 11 and is a portion located on the power supply base 310 side of the protrusion 312 in the longitudinal direction of the substrate 11. Here, the power supply base 310 side is, for example, the bottom surface side of the power supply base 310.

  Thereby, the connection between the substrate 11 and the power supply base 310 in the longitudinal direction of the substrate 11 can be further strengthened. For example, when the substrate 11 does not have the locking portion 14, the substrate 11 does not have a portion that is caught by the power supply base 310 in a direction away from the power supply base 310. Therefore, when the structure fixing the substrate 11 is damaged, the substrate 11 may fall out from the power supply base 30 in the longitudinal direction of the substrate 11.

  On the other hand, in the straight tube LED lamp 100 according to the second embodiment, since the substrate 11 has the locking portion 14, the substrate 11 and the protruding portion 312 are locked by the locking portion 14. That is, even if the structure that fixes the substrate 11 is damaged, the possibility that the substrate 11 falls off due to the locking portion 14 being caught by the protruding portion 312 can be reduced.

  As described above, in the illumination light source according to the present embodiment, the substrate has a locking portion that locks to the internal structure of the base.

  Thereby, since a latching | locking part latches to the internal structure of a nozzle | cap | die, the connection of a board | substrate and a nozzle | cap | die can be strengthened more.

  Further, the locking portion may be a part of the substrate and a portion located on the base side from the internal structure in the longitudinal direction of the substrate.

  Thereby, since the latching | locking part is located in a nozzle | cap | die side from an internal structure in the longitudinal direction of a board | substrate, a latching | locking part is hooked on the internal structure fixed to the nozzle | cap | die in the direction in which a board | substrate and a nozzle | cap | die separate. Therefore, the connection between the substrate and the base can be further strengthened.

  Further, the substrate is provided with a slit having a shape cut out from the end surface in the short direction of the substrate, and the locking portion is a part of the surface of the substrate and a part of the surface forming the slit. The internal structure may be fixed to the base so as to pass through the slit.

  Thereby, since a latching | locking part latches to the internal structure fixed to the nozzle | cap | die through the slit, it can strengthen the connection of a board | substrate and a nozzle | cap | die.

  11 and 12, the example in which the width of the protrusion 312 and the width of the slit 15 are the same has been described, but may be different. For example, the width of the protrusion 312 may be shorter than the width of the slit 15. At this time, the locking portion 14 and the protruding portion 312 do not have to be in contact with each other. The protrusion 312 may have any shape as long as the engaging portion 14 of the substrate 11 is hooked.

  In this embodiment mode, an example in which a slit is provided in the substrate has been described, but a through hole may be provided in the substrate. In this case, the locking portion of the substrate is locked to the base by engaging the protrusion which is the internal structure of the base body and the through hole provided in the substrate. Thereby, the connection of a board | substrate and a nozzle | cap | die can be strengthened more.

  In the present embodiment, the example in which the internal structure of the base body is a protrusion is shown, but the internal structure of the base body may be a recess or a through hole. In this case, a convex part is formed on the substrate. And the recessed part or through-hole which is an internal structure of a nozzle | cap | die main body, and the convex part formed in the board | substrate engage, and the latching | locking part of a board | substrate latches to a nozzle | cap | die. Thereby, the connection of a board | substrate and a nozzle | cap | die can be strengthened more.

  In the above-described embodiment, the example in which the structure fixed to the base is the internal structure of the base is shown, but the present invention is not limited to this. For example, it is a separate structure from the base body, and may be another structure fixed to the base body. For example, the structure fixed to the base may be an engaging member such as a screw fixed to the base body, or a plastic resin.

(Embodiment 3)
An illumination device according to Embodiment 3 of the present invention is an illumination device including the above-described illumination light source. For example, the illumination device according to the third embodiment includes the straight tube LED lamp 1 according to the first embodiment.

  FIG. 13 is an overview perspective view showing an example of the illumination device 2 according to Embodiment 3 of the present invention. As illustrated in FIG. 13, the lighting device 2 according to the second embodiment is a base light, and includes a straight tube LED lamp 1 and a lighting fixture 200.

  The straight tube LED lamp 1 is the straight tube LED lamp 1 according to Embodiment 1, and is used as an illumination light source of the illumination device 2. In addition, the illuminating device 2 which concerns on this Embodiment is provided with the two straight tube | pipe LED lamps 1 as an example.

  The lighting fixture 200 includes a pair of metal receivers 210 electrically connected to the straight tube LED lamp 1 and holding the straight tube LED lamp 1, and a device main body 220 to which the metal receiver 210 is attached.

  The instrument body 220 can be formed by, for example, pressing an aluminum steel plate. Further, the surface has a function of a reflecting surface that reflects light emitted from the straight tube LED lamp 1 in a predetermined direction (for example, downward).

  The lighting fixture 200 is mounted on a ceiling or the like via a fixture, for example. The lighting fixture 200 may include a circuit for controlling lighting of the straight tube LED lamp 1 or the like, and a cover member may be provided so as to cover the straight tube LED lamp 1. .

  As described above, since the lighting device 2 according to the present embodiment is locked to a structure in which the locking portion is fixed to the base, as in the other embodiments, the connection between the substrate and the base is further improved. Can be strong. For example, it is possible to reduce the possibility of the substrate falling off from the base in the longitudinal direction.

  Moreover, since the edge part of the longitudinal direction of a board | substrate is covered with the nozzle | cap | die, a board | substrate and a nozzle | cap | die can be fixed inside a nozzle | cap | die. Therefore, for example, the base that covers the structure that contributes to fixing the substrate and the base can be covered, and a larger number of light emitting elements can be arranged than in the case where the structure is not covered by the base. Thereby, the illumination intensity of the light source for illumination can also be raised. Therefore, according to this Embodiment, the illuminating device with which the nozzle | cap | die and the board | substrate were connected firmly can be provided.

(Other)
The illumination light source and the illumination device according to the present invention have been described based on the above embodiment, but the present invention is not limited to the above embodiment.

  For example, in the above-described embodiment, the case where the LED module is an SMD type LED module using a packaged LED element has been described. The LED module 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.

  Two or more substrates (LED modules) arranged in the housing may be arranged. In this case, metal wiring provided on each substrate may be connected via the connection terminal.

  Moreover, a housing | casing may be comprised by the elongate translucent cover which covers an LED module, and a base, for example. In this case, the LED module is placed on a base, for example. That is, the housing may not be an integral housing, and may be a housing that can be divided into a plurality of parts, such as a translucent cover and a housing.

  Moreover, in the said embodiment, the nozzle | cap | die main body should just be cylindrical, for example, demonstrated the structure which is a cylinder with a substantially uniform outer diameter. On the other hand, the base body may have a step on the side surface of the base body, that is, a configuration including a wide area and a narrow area.

  Moreover, although the case where a housing | casing and a nozzle | cap | die were cylinders was demonstrated, a housing | casing and a nozzle | cap | die may not be a cylinder. For example, the casing and the base may be square tubes.

  The base body may not have a bottom surface. That is, the base body may be a cylindrical body having openings at both ends.

  Further, for example, in the above-described embodiment, a single-side power feeding method that feeds power to all LEDs in the housing 20 from only one side of the power feeding base 30 is adopted. You may employ | adopt the both-sides electric power feeding system, such as an L-shaped base. In this case, the power supply pin on one side and the power supply pin on the other side may be configured as one pin. Alternatively, the power supply pin on one side and the power supply pin on the other side may receive power from both sides as a pair of power supply pins. Further, the pair of power supply pins or non-power supply pins is not limited to a rod-shaped metal, and may be configured by a flat metal or the like.

  Furthermore, from the aspect of the power feeding method, the straight tube LED lamp according to the present invention includes, for example, the following variations. That is, one-sided feeding method composed of an L-shaped base on one side and a base having a non-feeding pin on the other side, a two-sided feeding method composed of L-shaped bases on both sides, a one-sided feeding system composed of L-shaped bases on both sides, These include a double-sided power feeding system configured with a G13 base and a one-sided power feeding system configured with a G13 base.

  In addition, the straight tube LED lamp according to the above embodiment is a system that receives DC power from an external power supply, but receives AC power from an external power supply by incorporating a power supply circuit (AC-DC converter circuit). It may be a method.

  Further, in the above embodiment, the LED module 10 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 and combined with this and a blue LED chip to emit white light. Moreover, you may use the LED chip which light-emits colors other than blue, for example, using the ultraviolet LED chip which emits the ultraviolet light which is shorter wavelength than the blue light which a blue LED chip emits, mainly by ultraviolet light You may comprise so that white light may be discharge | released by the blue fluorescent substance particle which is excited, and discharge | releases blue light, red light, and green light, green fluorescent substance particle, and red fluorescent substance particle.

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

  In addition, it is realized by arbitrarily combining the components and functions in each embodiment without departing from the scope of the present invention, and forms obtained by making various modifications conceived by those skilled in the art to each embodiment. Forms are also included in the present invention.

1, 1a, 1b, 1c, 1d, 100 Straight LED lamp 2 Illumination device 10 LED module 11, 11a, 11b, 11c, 11d Substrate 12 LED element 13 Lighting circuit 14, 14a, 14b, 14c, 14d Locking part 15 Slit 16, 19 Protrusion 17 Through hole 18 Recess 20 Housing 30, 310 Power supply base 31, 41, 311 Base body 32 Power supply pin 40 Non-power supply base 42 Non-power supply pins 50, 50a, 50b, 50c, 50d Adhesive 200 Lighting fixture 210 Receipt 220 Appliance body 312 Projection

Claims (7)

A long substrate on which a light emitting element is arranged;
A long casing in which the substrate is disposed;
A base provided at an end in the longitudinal direction of the housing,
The longitudinal end of the substrate is covered by the base,
The said board | substrate has a latching | locking part latched to the structure fixed to the said nozzle | cap | die. The light source for illumination. The light source for illumination according to claim 1, wherein the structure is an adhesive bonded to the base or an internal structure of the base. The illumination light source according to claim 2, wherein the locking portion is a part of the substrate and is located on the base side of the adhesive or the internal structure in the longitudinal direction of the substrate. The substrate is provided with a slit having a shape cut out from an end surface in the short direction of the substrate,
The locking portion is a part of the surface of the substrate and is a part of the surface forming the slit,
The illumination light source according to claim 2, wherein the adhesive or the internal structure is fixed to the base so as to pass through the slit. The substrate is provided with at least one of a convex portion, a concave portion and a through hole,
4. The illumination unit according to claim 2, wherein the locking part is a part of a surface of the substrate, and is a part of a surface forming at least one of the convex part, the concave part, and the through hole. light source. The light source for illumination according to claim 2, wherein the adhesive is a silicone resin.   An illuminating device provided with the light source for illumination of any one of Claims 1-6.

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