JP2015167090A - Light source of lighting and lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a light source for lighting in which the number of components is reduced to achieve weight reduction.SOLUTION: A light source 100 for lighting includes: a long substrate 11 on which LED elements 12 are disposed; and a tubular contraction member 20 which is fixed in a contractive manner contacting with the substrate.

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

  The straight tube LED lamp described in Patent Document 1 includes an LED module, a base, and an outer casing having a cylindrical portion and a closing portion that closes both ends of the cylindrical portion. Thus, the straight tube LED lamp described in Patent Document 1 has a large number of parts and is difficult to reduce in weight.

  Therefore, the present invention provides an illumination light source and an illumination device that can reduce the number of components and achieve weight reduction.

  In order to solve the above problems, an illumination light source according to one embodiment of the present invention includes a tubular contracting member, and a long substrate that is disposed in the contracting member and has a light emitting element provided on a main surface thereof. The contraction member is contracted and fixed in contact with the substrate.

  The illumination light source according to one aspect of the present invention further includes a base provided in the contraction member and at an end portion in a longitudinal direction of the substrate, and the contraction member is further provided on the base. It may be contracted and fixed in contact.

  The illumination light source according to one embodiment of the present invention may further include a skeleton member provided between the substrate and the contraction member.

  In the illumination light source according to one embodiment of the present invention, the frame member is a rod-shaped member provided in a short direction of the substrate, and is curved so as to be convex in a light emitting direction from the light emitting element. You may do it.

  In the illumination light source according to one embodiment of the present invention, a plurality of the skeleton members may be provided apart from each other in the longitudinal direction of the substrate.

  In the illumination light source according to one aspect of the present invention, the contraction member may be a heat contraction tube.

  Moreover, the illuminating device which concerns on 1 aspect of this invention is an illuminating device provided with the said light source for illumination.

  ADVANTAGE OF THE INVENTION According to this invention, the number of parts can be reduced and the light source for illumination and the illuminating device reduced in weight can be provided.

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 sectional drawing which shows an example of the straight tube | pipe LED lamp which concerns on Embodiment 1 of this invention. It is sectional drawing which shows an example of the straight tube | pipe LED lamp which concerns on Embodiment 1 of this invention. It is a general-view perspective view which shows an example of the manufacturing method of the straight tube | pipe LED lamp which concerns on Embodiment 1 of this invention. It is a general-view perspective view which shows an example of the straight tube | pipe LED lamp which concerns on the modification of Embodiment 1 of this invention. It is sectional drawing which shows an example of the straight tube | pipe LED lamp which concerns on the modification of Embodiment 1 of this invention. It is sectional drawing which shows an example of the straight tube | pipe LED lamp which concerns on the modification of Embodiment 1 of this invention. It is a general | schematic perspective view which shows an example of the light source for illumination which concerns on the modification of Embodiment 1 of this invention. It is a general-view perspective view which shows an example of the illuminating device which concerns on Embodiment 2 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)
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 according to Embodiment 1 of the present invention.

  As shown in FIG. 1, the straight tube LED lamp 1 includes an LED module 10, a tubular contracting member 20, and a power supply cap 30 and a non-power supply cap provided on each of the longitudinal ends of the LED module 10. 40. 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.

  In FIG. 1, the X-axis direction is the short direction of the LED module 10. The Y-axis direction is the longitudinal direction of the LED module 10. The Z-axis direction is a direction perpendicular to the main surface of the LED module 10.

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

[LED module]
First, the LED module 10 according to the present embodiment will be described.

  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 contracting member 20.

  The LED module 10 according to the present embodiment is a light emitting module of a surface mount (SMD: Surface Mount Device) type. The LED module 10 includes a substrate 11 and a plurality of LED elements 12 mounted on the substrate 11. Although not shown, the LED module 10 includes a lighting circuit for lighting a plurality of LED elements 12 and a metal wiring pattern-patterned in a predetermined shape for electrically connecting the plurality of LED elements 12 and the lighting circuit. With.

  The substrate 11 is a long substrate disposed in the contracting member 20. The substrate 11 is, for example, a rectangular substrate. The substrate 11 has a longitudinal direction (Y-axis direction in FIG. 1) parallel to the longitudinal direction of the tubular contracting member 20, and a short side direction (X-axis direction in FIG. 1) is a short direction of the contracting member 20. It arrange | positions in the contraction member 20 so that it may become parallel.

  The substrate 11 has a first main surface (front surface) and a second main surface (back surface) that face each other. As shown in FIG. 1, a plurality of LED elements 12 arranged in the longitudinal direction and metal wiring (not shown) for supplying power to the plurality of LED elements 12 are formed on the first main surface of the substrate 11. ) And are provided.

  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 length of the substrate 11 is equal to or shorter than the length (longitudinal direction) of the contracting member 20.

  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. The other end of the substrate 11 in the longitudinal direction is covered with a non-power feeding base 40. For example, the end of the substrate 11 in the longitudinal direction may be fixed to the power supply base 30 or the non-power supply base 40 with a fixing member such as an adhesive. The adhesive is, for example, a silicone resin or cement.

  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 metal wiring (not shown) is a metal wiring for supplying predetermined power to each of the plurality of LED elements 12. The metal wiring is patterned in a predetermined shape. In the present embodiment, the straight tube LED lamp 1 employs a one-side power feeding method that feeds power to all the LED elements 12 in the contracting member 20 from one side of the power feeding base 30 alone.

  For example, the metal wiring is connected to the pair of power supply pins 32 of the base for power supply by two lead wires (a pair of lead wires). For example, the end portion of the lead wire is soldered to the metal wiring.

  The metal wiring is made of a metal having high conductivity such as copper (Cu), for example. Alternatively, the metal wiring may be nickel, aluminum, gold, or a laminated film or alloy made of two or more metals among these.

  The lighting circuit (not shown) is an LED lighting circuit for lighting the LED element 12 mounted on the LED module 10. The lighting circuit is composed of one or a plurality of circuit elements (circuit parts).

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

  A circuit element (not shown) 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.

  Further, the lighting circuit may be provided on a substrate (circuit substrate) different from the substrate 11. In this case, the circuit board and the board 11 may be electrically connected with a lead wire or the like.

  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.

[Shrink member]
Next, the shrink member 20 will be described in detail with reference to FIG. 1 and FIG. 2 and FIG. 2 and 3 are cross-sectional views showing an example of a straight tube LED lamp according to Embodiment 1 of the present invention. FIG. 2 shows a cross section passing through the tube axis direction of the straight tube LED lamp and perpendicular to the LED module (YZ cross section). FIG. 3 is a cross section (XZ cross section) perpendicular to the tube axis direction of the straight tube LED lamp and perpendicular to the substrate of the LED module, and shows the AA cross section of FIG.

  The contraction member 20 is a tubular contraction member in which the substrate 11 is disposed. As shown in FIG. 3, the contracting member 20 is contracted and fixed in contact with the substrate 11 so as to cover the substrate 11. In other words, at least a part of the inner surface of the contracting member 20 is in contact with the substrate 11. Specifically, the contracting member 20 contacts the end surface of the substrate 11 in the short direction, and hardly contacts the main surface (front surface and back surface) of the substrate 11.

  In addition, since this originates in the contraction performance (thermal contraction rate etc.) of the contraction member 20, you may make it contact the main surface of the board | substrate 11 by using a material with a good thermal contraction rate as the contraction member 20, for example. . For example, the contraction member 20 may contact the end surface and the second main surface (back surface) of the substrate 11, or may contact the LED element 12.

  Further, as shown in FIGS. 1 and 2, the contraction member 20 is contracted and fixed in contact with the power supply base 30 and the non-power supply base 40 so as to cover the power supply base 30 and the non-power supply base 40. Yes. In other words, at least a part of the inner surface of the contracting member 20 is in contact with the power supply base 30 and the non-power supply base 40. Specifically, the inner surface of the contracting member 20 is in contact with the outer surface of the power supply base 30 and the outer surface of the non-power supply base 40.

  The shrinkable member 20 is a long translucent cover having translucency that covers the LED module 10. For example, as shown in FIG. 1, the contracting member 20 is an outer tube having openings at both ends. The contracting member 20 is made of, for example, a transparent resin material.

  For example, the shrink member 20 is a heat shrink tube. That is, the contraction member 20 contracts when heat is applied. The contracting member 20 has an inner diameter before contraction larger than the outer diameters of the power supply base 30 and the non-power supply base 40. Thereby, the LED module 10 can be smoothly inserted into the contracting member 20.

  Further, the length of the contraction member 20 in the longitudinal direction is substantially equal to the length of the straight tube LED lamp 1. For example, the length of the contraction member 20 is equal to or longer than the length of the substrate 11, and is 1200 mm as an example.

  For example, the contraction member 20 is made of a resin material that is insulative and transparent to visible light. In this case, the LED module 10 disposed in the contracting member 20 can be viewed from the outside of the contracting member 20. Specifically, the shrinkable member 20 is a heat shrinkable tube made of a plastic resin material such as polyvinyl chloride, polyester, or polyolefin, or a rubber material such as silicone rubber.

  In addition, in order to diffuse the light from the LED module 10, the contraction member 20 may have a light diffusion function. For example, a light diffusion sheet or a light diffusion film may be formed on the outer surface of the contracting member 20. Specifically, a milky white light diffusion 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 outer surface of the shrinkable member 20.

  Thus, by providing the contracting member 20 with a light diffusion function, the light emitted from the LED module 10 can be diffused when the light passes through the contracting member 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 giving the light diffusing function to the contracting member 20, it is possible to suppress the feeling of light collapse.

[Feeding cap]
The power supply base 30 is a power supply base for supplying power to the LED module 10. In other words, the power supply cap 30 receives power for causing the plurality of LED elements 12 to emit light.

  The power supply cap 30 is provided at one end of the substrate 11 in the longitudinal direction (Y-axis direction). For example, the power supply cap 30 has a bottomed cylindrical shape and is provided so as to cover one end of the substrate 11 in the longitudinal direction. The power supply base 30 may be bonded and fixed to one end of the substrate 11 with an adhesive. Specifically, the power supply base 30 is a cylinder having an opening on one side and a bottom on the other side.

  As shown in FIG. 1, the power supply base 30 includes a base body 31 and power supply pins 32.

  The base body 31 is provided at one end of the substrate 11 in the longitudinal direction. For example, the base body 31 is a cylindrical base body and forms an outer shell of the power supply base 30. The base body 31 holds the power supply pin 32.

  Specifically, the base body 31 is a cylindrical base body having an opening and a bottom. The base body 31 according to the present embodiment has a bottomed cylindrical shape, and has a circular opening and a disc-shaped bottom.

  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.

  As shown in FIGS. 1 and 2, the base body 31 is covered with the contracting member 20. Specifically, the outer surface of the base body 31 and the inner surface of the contracting member 20 are in contact with each other. The contracting member 20 covers the power supply cap 30 so that at least the power supply pin 32 is exposed.

  The power supply pin 32 is an example of a base pin and is provided on the base body 31. Specifically, the power supply pins 32 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.

  Specifically, the power supply pin 32 is provided so as to penetrate the bottom of the base body 31. The power feed pin 32 protrudes outward from the outer surface of the bottom portion of the base body 31 and protrudes from the inner surface of the bottom portion of the base body 31 toward the opening. A portion of the power supply pin 32 that protrudes from the inner surface of the bottom portion of the base body 31 toward the opening is connected to the metal electrode of the substrate 11 by a lead wire 50.

  Note that the power supply cap 30 according to the present embodiment is a GX16t-5 cap (L-shaped pin cap) in a straight tube LED lamp conforming to “JIS C 7709-1”. It is.

  Here, as shown in FIG. 2, the lead wire 50 is a conducting wire for supplying power to the LED element 12 having one end connected to the power feed pin 32 and the other end connected to the substrate 11. Specifically, one end of each of the two lead wires 50 is connected to a power feed pin 32 that is a pair of conductive pins. The other end of each of the two lead wires 50 is connected to the metal wiring of the substrate 11. For example, the lead wire 50 is soldered to the power supply pin 32 and the metal electrode of the metal wiring.

  The lead wire 50 is formed by twisting thin copper wires or the like, for example, and the surface is covered with an insulating member such as polyvinyl chloride or silicone rubber. Specifically, a conductive metal wire or the like is exposed at both ends of the lead wire 50, and a portion excluding both ends is covered with an insulating member. The lead wire 50 includes a metal exposed portion (both end portions) and a covering portion (portion excluding both ends).

  Note that a connection terminal may be provided at the end of the lead wire 50 and the lead wire 50 may be connected to the connection terminal provided on the substrate 11 instead of the metal electrode. The connection terminal is an external connection terminal (electrode terminal) that receives DC power for causing the LED element 12 to emit light from the outside of the LED module 10. Specifically, the connection terminal is a connector having a resin-type base and a conductive portion (pin) for receiving DC power. The conductive portion is connected to the lighting circuit through a metal wiring. Thus, the end portion of the lead wire 50 may be connected to the main surface of the substrate 11 by a connector.

[Non-powered cap]
The non-power supply base 40 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 at the other end of the substrate 11 in the longitudinal direction (Y-axis direction). That is, the non-power feeding base 40 is provided at the end opposite to the longitudinal end (one end) of the substrate 11 on which the power feeding base 30 is provided. Note that the non-power supply base 40 may ground (ground) a predetermined region of the LED module 10 via a lighting fixture.

  For example, the non-power feeding base 40 has a bottomed cylindrical shape and is provided so as to cover the other end portion in the longitudinal direction of the substrate 11. The non-power feeding base 40 may be bonded and fixed to the other end of the substrate 11 with an adhesive. Specifically, the non-power feeding base 40 is a cylinder having an opening on one side and a bottom on the other side.

  As shown in FIG. 1, the non-power supply base 40 includes a base body 41 and a non-power supply pin 42.

  The base body 41 is provided at the other end in the longitudinal direction of the substrate 11. For example, the base body 41 is a cylindrical base body and forms an outer shell of the non-power feeding base 40. The base body 41 holds the non-power supply pin 42.

  Specifically, the base body 41 is a cylindrical base body having an opening and a bottom. The base body 41 according to the present embodiment has a bottomed cylindrical shape, and has a circular opening and a disk-shaped bottom.

  The base body 41 is made of a resin material such as polybutylene terephthalate (PBT). 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.

  As shown in FIGS. 1 and 2, the base body 41 is covered with the contraction member 20. Specifically, the outer surface of the base body 41 and the inner surface of the contracting member 20 are in contact with each other. The contracting member 20 covers the non-power supply base 40 so that at least the non-power supply pin 42 is exposed.

  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-power supply pin 42 is provided so as to protrude outward from the bottom of the base body 41. The non-power supply pin 42 is not exposed on the inner surface side of the base body 41 and is embedded in the base body 41. Note that the non-power supply pin 42 may be provided so as to penetrate the bottom of the base body 41. Specifically, the non-power supply pin 42 may protrude outward from the outer surface of the bottom portion of the base body 41 and may protrude from the inner surface of the bottom portion of the base body 41 toward the opening.

[Manufacturing method of straight tube LED lamp]
Then, the manufacturing method of the straight tube | pipe LED lamp which concerns on this Embodiment is demonstrated. Specifically, the attachment of the contraction member will be described with reference to FIG. FIG. 4 is an overview perspective view showing an example of a method for manufacturing a straight tube LED lamp according to Embodiment 1 of the present invention.

  First, as shown to (a) of FIG. 4, the LED module 10 by which the base 30 for electric power feeding and the base 40 for non-power feeding were provided in the both ends of the longitudinal direction, and the contraction member 20 before shrinkage | contraction are prepared. And the shrinking member 20 before shrinkage | contraction is covered on the LED module 10 from one edge part of a longitudinal direction. In other words, the LED module 10 is inserted into the contraction member 20 before contraction. That is, the LED module 10, the power supply base 30, and the non-power supply base 40 are arranged in the contraction member 20 before contraction.

  At this time, the inner diameter of the contraction member 20 before contraction is larger than the outer diameters of the power supply base 30 and the non-power supply base 40. Thereby, the contraction member 20 before contraction can be smoothly covered on the LED module 10.

  Next, as shown in FIG. 4B, the contracting member 20 is contracted by applying heat to the contracting member 20 before contracting. Specifically, the contracting member 20 is contracted so that the inner surface of the contracting member 20 contacts the substrate 11, the power supply base 30, and the non-power supply base 40.

  As described above, as shown in FIG. 4C, the straight tube LED including the contracting member 20 contracted and fixed so as to contact and cover the LED module 10, the power supply base 30 and the non-power supply base 40. The lamp 1 is manufactured.

[Effects, etc.]
As described above, the straight tube LED lamp 1 according to the present embodiment includes a tubular contracting member 20, a long substrate 11 that is disposed in the contracting member 20, and the LED element 12 is provided on the main surface. The contraction member 20 is contracted and fixed in contact with the substrate 11.

  Thereby, when a glass bulb or a resin bulb is used, a fixing member for fixing the glass bulb or the resin bulb and the power supply cap 30 is required, but by using the contraction member 20, the weight is reduced. Can be realized. Moreover, since the shrinkable member 20 covers the LED element 12 provided on the substrate 11, it is possible to prevent an electric shock caused by a human touch.

  Moreover, the straight tube LED lamp 1 according to the present embodiment further includes a power supply cap 30 provided in the contracting member 20 and at the end in the longitudinal direction of the substrate 11, and the contracting member 20 further includes In contact with the power supply cap 30, it is contracted and fixed.

  Thereby, since the contraction member 20 is contracted and fixed in contact with the substrate 11 and the power supply base 30, it is possible to prevent foreign matter and the like from entering the contraction member 20 from between the power supply base 30 and the substrate 11. can do.

  Moreover, in the straight tube | pipe LED lamp 1 which concerns on this Embodiment, the contraction member 20 is a heat contraction tube.

  Thereby, by applying heat to the contraction member 20 before contraction, the contraction member 20 can be easily brought into contact with the substrate 11 and contracted and fixed.

  In addition, although the shrink member 20 showed about the example which is a heat shrinkable tube, it is not restricted to this. For example, the contraction member 20 may be an ultraviolet contraction tube that contracts when irradiated with ultraviolet rays.

  The contracting member 20 is provided so as to contact and cover the LED module 10, the power supply base 30 and the non-power supply base 40, but the contraction member 20 includes the power supply base 30 and the non-power supply base 40. At least one may not be covered.

(Modification of Embodiment 1)
Then, the straight tube | pipe LED lamp which concerns on the modification of Embodiment 1 of this invention is demonstrated using FIGS. In the following description, points different from the first embodiment will be mainly described, and description of the same points may be omitted.

  FIG. 5 is a schematic perspective view showing an example of a straight tube LED lamp according to a modification of the first embodiment of the present invention. 6 and 7 are cross-sectional views showing an example of a straight tube LED lamp according to a modification of the first embodiment of the present invention.

  FIG. 6 shows a cross section passing through the tube axis direction of the straight tube LED lamp and perpendicular to the LED module (YZ cross section). FIG. 7 is a cross section (XZ cross section) perpendicular to the tube axis direction of the straight tube LED lamp and perpendicular to the substrate of the LED module, and shows a cross section taken along line BB in FIG. FIG. 7 shows a cross section passing through the frame member 60.

  As shown in FIGS. 5 and 6, the straight tube LED lamp 1 a according to this modification includes a skeleton member 60 provided between the substrate 11 and the contracting member 20. A plurality of frame members 60 are provided apart from each other in the longitudinal direction of the substrate 11. The plurality of frame members 60 are provided at regular intervals, for example. At this time, it is preferable that each of the plurality of frame members 60 is provided between adjacent LED elements 12.

  The skeleton member 60 is a member that supports the contraction member 20. That is, the skeleton member 60 is provided to make the shape of the straight tube LED lamp 1a look like a straight tube when the contracting member 20 contracts. As shown in FIGS. 5 and 6, the contraction member 20 is provided so as to be bridged over a plurality of frame members 60.

  Thereby, the distance between the LED element 12 and the contraction member 20 can be increased as compared with the case where the frame member 60 is not provided. Therefore, the effect of diffusing light from the LED element 12 can be enhanced, and the feeling of being crushed can be suppressed.

  The skeleton member 60 is a rod-like member provided in the short direction of the substrate 11 and is curved in a predetermined direction. For example, the skeleton member 60 is provided so as to be convex in the direction in which the light from the LED element 12 is emitted. Specifically, the skeleton member 60 is an arc-shaped member as shown in FIG. The outer diameter of the arcuate frame member 60 is, for example, a length equal to or less than the outer diameter of the base bodies 31 and 41.

  Specifically, both ends of the frame member 60 are fixed to the substrate 11. For example, you may provide the clamping part which pinches | interposes the board | substrate 11 in the both ends of the frame member 60. FIG. Specifically, the skeleton member 60 may be fixed by sandwiching the first main surface and the second main surface of the substrate 11 from the end surface of the substrate 11 in the short direction. Alternatively, both ends of the skeleton member 60 may be bonded and fixed to the substrate 11 with an adhesive.

  The skeleton member 60 is made of, for example, a metal material or a resin material. In addition, it is preferable that the frame member 60 is comprised from a translucent material so that irradiation of the light from the LED element 12 may not be prevented. For example, the skeleton member 60 is transparent.

  As described above, the straight tube LED lamp 1a according to the present modification further includes the skeleton member 60 provided between the substrate 11 and the contracting member 20.

  Thereby, since the skeleton member 60 is provided between the board | substrate 11 and the contraction member 20, the distance of the LED element 12 and the contraction member 20 can be lengthened compared with the case where the skeleton member 60 is not provided. Therefore, the effect of diffusing light from the LED element 12 can be enhanced, and the feeling of being crushed can be suppressed.

  Further, in the straight tube LED lamp 1a according to this modification, the skeleton member 60 is a rod-like member provided in the short direction of the substrate 11, and is curved so as to be convex in the light emitting direction from the LED element 12. doing.

  Thereby, since the frame member 60 is provided in the short direction, the cross-sectional shape of the contraction member 20 in the short direction can be determined by the frame member 60. For example, since the contracting member 20 contracts along the skeleton member 60, the cross-sectional shape of the contracting member 20 can be determined by determining the degree of curvature of the skeleton member 60.

  In the straight tube LED lamp 1a according to this modification, a plurality of frame members 60 are provided apart from each other in the longitudinal direction of the substrate 11.

  Thereby, the shape of the contraction member 20 can be brought closer to a straight tube.

  The framework member 60 may be an annular member. That is, the frame member 60 may have the same shape as the openings of the base bodies 31 and 41. For example, when the openings of the base bodies 31 and 41 are rectangular, the frame member 60 may be a rectangular annular member. At this time, the substrate 11 is disposed through the annular frame member 60.

  Moreover, although the frame member 60 showed about the example by which both ends are fixed to the board | substrate 11, it does not restrict to this. For example, the skeleton member 60 may be a T-shaped rod-like member standing on the main surface of the substrate 11. At this time, it is preferable that the T-shaped arm portion has a circular arc shape that is convex in the light emitting direction of the LED element 12.

  Moreover, although the straight tube | pipe LED lamp 1a showed about the example provided with the some frame member 60, you may provide only one frame member 60. FIG. At this time, it is preferable that only one frame member 60 is provided in the central portion of the contraction member 20.

  Moreover, although the example in which the skeleton member 60 is provided in parallel to the short direction of the substrate 11 has been shown, the present invention is not limited thereto. For example, the skeleton member 60 may be a member that covers the substrate 11 in a spiral shape. Alternatively, the skeleton member 60 may be provided in an oblique direction that intersects both the short side direction and the long side direction of the substrate 11.

  Further, the skeleton member 60 may have a light diffusion function.

  In the above-described embodiment and its modifications, the illumination light source is shown as an example of the straight tube LED lamp 1 or 1a including the power supply base 30 and the non-power supply base 40. However, the illumination light source is Not limited to this. For example, the illumination light source may not include the power supply base 30 and the non-power supply base 40.

  Specifically, as illustrated in FIG. 8, the illumination light source 100 may include the LED module 10, the contracting member 20, the power supply pin 32, and the lead wire 50. FIG. 8 is a schematic perspective view showing an example of an illumination light source according to a modification of the present embodiment. The LED module 10, the contracting member 20, the power supply pin 32, and the lead wire 50 are the same as those in the first embodiment.

  The power supply pin 32 is not fixed to the base body 31 or the like and is merely connected to the LED module 10 by the lead wire 50. The contraction member 20 is contracted and fixed so as to cover and cover the substrate 11. The length of the contraction member 20 in the longitudinal direction is, for example, the same as the length of the substrate 11.

  As described above, the illumination light source 100 according to the modification of the present embodiment is a tubular contracting member 20, a long substrate that is disposed in the contracting member 20, and the LED element 12 is provided on the main surface. 11 and the contraction member 20 is contracted and fixed in contact with the substrate 11.

  Thereby, when a glass bulb or a resin bulb is used, a fixing member for fixing the glass bulb or the resin bulb and the power supply cap 30 is required, but by using the contraction member 20, the weight is reduced. Can be realized. Moreover, since the shrinkable member 20 covers the LED element 12 provided on the substrate 11, it is possible to prevent an electric shock caused by a human touch.

  Further, the glass bulb or the resin bulb is usually a rigid body, whereas the contracting member 20 is an elastic body. Therefore, it is more useful when a flexible substrate is used as the substrate 11. Further, when the elasticity of the contraction member 20 after contraction is weak, the illumination light source 100 having a desired shape can be manufactured by contracting the contraction member 20 in a state where the substrate 11 is bent into a desired shape. .

(Embodiment 2)
An illumination device according to Embodiment 2 of the present invention is an illumination device including the above-described illumination light source. For example, the illumination device according to the second embodiment includes the straight tube LED lamp 1 according to the first embodiment.

  FIG. 9 is a schematic perspective view showing an example of the illumination device 2 according to Embodiment 2 of the present invention. As illustrated in FIG. 9, 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 main 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, the lighting device 2 according to the present embodiment can reduce the number of components and achieve weight reduction, as in the other embodiments.

(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 a substrate 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 series or in parallel. 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 does not have to be an integral housing, and may be a housing that can be divided into a plurality of parts, such as a housing made of a translucent cover and a base.

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

  Moreover, the edge part of a housing | casing may cover a nozzle | cap | die. That is, the outer diameter of the base may be smaller than the inner diameter of the end portion of the casing.

  Further, for example, in the above-described embodiment, a single-side power feeding method that feeds power to all LEDs in the housing from only one side of the power feeding base is adopted. However, both the bases on both sides use a G13 base and an L-shaped base. You may employ | adopt the both-sides electric power feeding system, such as. 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.

  In the above embodiment, the LED module is configured to emit white light by the blue LED chip and the yellow phosphor. However, the present invention is not limited to this. 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, 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.

1, 1a Straight tube LED lamp (light source for illumination)
2 Lighting device 10 LED module 11 Substrate 12 LED element 20 Contracting member 30 Power supply base 31, 41 Base body 32 Power supply pin 40 Non-power supply base 42 Non-power supply pin 50 Lead wire 60 Frame member 100 Illumination light source 200 Lighting fixture 210 Gold 220 Instrument body

Claims (7)

A tubular shrink member;
An elongated substrate disposed in the contracting member and provided with a light emitting element on the main surface;
The light source for illumination, wherein the contraction member is contracted and fixed in contact with the substrate. The illumination light source further includes a base provided in the contracting member and at an end in a longitudinal direction of the substrate,
The illumination light source according to claim 1, wherein the contraction member is further contracted and fixed in contact with the base. The illumination light source according to claim 1, wherein the illumination light source further includes a skeleton member provided between the substrate and the contraction member. The light source for illumination according to claim 3, wherein the frame member is a rod-shaped member provided in a short direction of the substrate, and is curved so as to be convex in a light emitting direction from the light emitting element. The illumination light source according to claim 4, wherein a plurality of the frame members are provided apart from each other in the longitudinal direction of the substrate. The illumination light source according to claim 1, wherein the contraction member is a heat contraction tube.   An illuminating device provided with the light source for illumination of any one of Claims 1-6.

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