JP5857264B2 - LED lighting fixtures - Google Patents

Description

The present invention relates to an LED lighting fixture.

  Conventionally, LED lighting fixtures having various structures including LEDs as light sources have been proposed (for example, Patent Documents 1 and 2).

  As an LED lighting apparatus, the lighting apparatus of Patent Document 1 includes a mounting substrate 108 on which an LED chip 109 is mounted, as shown in FIG. The lighting fixture has a shape in which the bottom portion 103 and the cylindrical portion 104 are integrated, and a fixture main body 100 in which the mounting substrate 108 is installed, and a lens unit 118 having a lens 120 provided in front of the LED chip 109. Have. The lighting fixture also has a lens unit holding portion 115 that holds the lens unit 118 in the fixture main body 100. In the lighting fixture, the lens unit holding portion 115 is provided inside the cylindrical portion 104 so that the cylindrical portion 104 of the fixture main body 100 is exposed to the outside.

  Thereby, it is supposed that the lighting fixture of patent document 1 can thermally radiate the heat | fever which LED chip 109 generate | occur | produces from the cylinder part 104 to the exterior efficiently.

  In the lighting fixture of Patent Document 1, the back surface of the mounting substrate 108 is in close contact with the adapter 112 made of metal via the heat conductive insulating material 111. Further, the lighting fixture has a concave portion 102 for accommodating the socket 114 in the bottom 103 of the fixture main body 100. The lighting fixture holds the mounting board 108 on the fixture body 100 by inserting the electrode 113 of the mounting board 108 into the socket 114. In the lighting fixture, a female screw portion 106 corresponding to the male screw portion 117 of the lens unit holding portion 115 is provided inside the cylindrical portion 104 of the fixture main body 100. In the lighting fixture, the lens unit 118 is locked to the convex piece 119 of the lens unit holding portion 115 and held in the fixture body 100.

  Further, as shown in FIG. 16, the LED lighting device of Patent Document 2 includes a housing portion 211 formed of a concave portion on the front side, and a heat in which a plurality of fins 216 continuous with the housing portion 211 are formed on the back surface side. A conductive housing 210 is included. The LED lighting device includes an LED mounting substrate 220 disposed on the bottom surface 212 of the housing portion 211 and a plurality of LEDs 230 mounted on the LED mounting substrate 220. Further, the LED lighting device has a reflector plate 250 disposed on the LED mounting substrate 220. The reflector plate 250 forms a reflector surface around each of the LEDs 230 by a plurality of openings 251 whose diameter increases toward the front side. The LED lighting device includes a lens plate 270 that covers the front side and the side surface of the reflector plate 250 and is fixed to the housing 210 in a state where the reflector plate 250 is positioned and pressed. The lens plate 270 includes the same number of lens portions 271 as the opening portions 251, and each lens portion 271 is positioned on the corresponding opening portion 251.

  Thus, the LED illumination device of Patent Document 2 is able to efficiently dissipate heat generated by the LED 230.

  In the LED illumination device of Patent Document 2, the light diffusion sheet 260 is placed on the reflector plate 250 and the lens plate 270 is placed on the reflector plate 250. In the LED lighting device, the positioning projection 272 of the lens plate 270 is inserted into the hole 214 of the housing portion 211 through the notch 261 of the light diffusion sheet 260, the notch 252 of the reflector plate 250, and the hole 222 of the LED mounting substrate 220. It is constituted so that. The LED lighting device is configured such that the screw 290 can be inserted into the hole 215 of the housing portion 211 through the screw hole provided in the notch 273 of the lens plate 270 and the hole 222 of the LED mounting substrate 220. Further, the LED lighting device is provided with a locking leg 282 on the back side of the cover 280 so that the cover 280 can be attached to the housing 210 using the locking leg 282 and the locking hole 213 of the housing portion 211. It is composed. The LED illumination device is configured to protrude the tip of the lens portion 271 from the hole 281 of the cover 280.

JP 2004-327138 A JP 2010-49830 A

  By the way, the output of the LED, which is the light source of the LED lighting apparatus, has been improved year by year, and the output has been increased. LEDs tend to generate more heat as the output increases. The LED has problems such as a decrease in output and a shortened life as the LED generates heat. For this reason, LED lighting fixtures are required to have higher heat dissipation properties, and when the LED having a larger amount of heat generation is used as the light source, the structure of the lighting fixture described in Patent Document 1 or the LED lighting device disclosed in Patent Document 2 is sufficient. Instead, there is a need for further improvements.

The present invention has been made in view of the above circumstances, an object thereof is to provide a heat radiation excellent in L ED luminaire.

The LED unit of the present invention includes a unit main body portion that includes an LED on one surface side and dissipates heat generated by the LED from the other surface side opposite to the one surface side, and stores and holds the unit main body portion to conduct heat. e Bei an outer shell portion made made of a material, prior Kigaikara portion protrudes outwardly from the side end of the unit body, the LED heat from the other surface side to the outside by thermal conductivity and L ED unit that having a projecting portion for heat radiation, a frame member provided on the front side of the LED unit emitting light from the LED to the provided on one surface side of the LED unit, and the front side An LED main body provided on the rear side of the opposite LED unit, wherein the LED unit has the protruding portion sandwiched between the frame body and the main body, Body and front At least one of the frame bodies is formed of a heat conductive member that radiates heat from the LED at a portion in contact with the protruding portion .

  In this LED lighting apparatus, it is preferable that at least one of the apparatus main body and the frame has a positioning portion that positions the protrusions with respect to the apparatus main body or the frame.

  In this LED lighting apparatus, at least one of the apparatus main body and the frame body protrudes from the apparatus main body or the frame body in a state where the apparatus main body and the frame body do not sandwich the protruding portion. It is preferable to have a temporary holding part that temporarily holds the part.

  In this LED lighting apparatus, it is preferable that the protrusion has an energization section that can energize the LED unit from the apparatus body side in a state where the protrusion is sandwiched between the apparatus body and the frame. .

  In this LED lighting apparatus, it is preferable that the frame body has a radiation fin that radiates heat of the LED thermally conducted through the protrusion.

  In this LED lighting apparatus, the instrument main body and the frame body are sandwiched by a pressing holding portion that presses and holds the instrument main body and the frame body in a state where the instrument main body and the frame body sandwich the projecting portion. It is preferable to be made.

  In the LED lighting fixture of this invention, the LED lighting fixture provided with the LED unit excellent in heat dissipation can be provided.

2 is a schematic perspective view of an LED unit according to Embodiment 1. FIG. It is a disassembled perspective view of the LED lighting fixture using the LED unit same as the above. It is a schematic perspective view of the LED unit of Embodiment 2. It is a disassembled perspective view of the LED lighting fixture using the LED unit same as the above. It is a disassembled perspective view of another LED lighting fixture using the LED unit same as the above. It is a disassembled perspective view of the LED lighting fixture of Embodiment 3. FIG. It is explanatory drawing of the assembly process of LED lighting fixture same as the above. It is explanatory drawing of the assembly process of LED lighting fixture same as the above. It is a disassembled perspective view of the LED lighting fixture of Embodiment 4. It is a perspective view of the principal part in an LED lighting fixture same as the above. It is a disassembled perspective view of the LED lighting fixture of Embodiment 5. FIG. It is a disassembled perspective view of another LED lighting fixture same as the above. It is a schematic perspective view of the LED lighting fixture of Embodiment 6. It is explanatory sectional drawing of an LED lighting fixture same as the above. It is a schematic sectional drawing of the conventional lighting fixture. It is a disassembled perspective view of the conventional LED lighting apparatus.

(Embodiment 1)
Hereinafter, the LED unit 10 of this embodiment is demonstrated using FIG. 1, and the LED lighting fixture 20 using the LED unit 10 is demonstrated using FIG.

  As shown in FIG. 1, the LED unit 10 of the present embodiment includes the LED 2 on the one surface 1aa side, and generates heat generated by the LED 2 from the other surface side opposite to the one surface 1aa side (the lower side of the paper surface in FIG. 1). A unit main body 1 for radiating heat is provided. The LED unit 10 also includes an outer shell portion 3 that houses and holds the unit main body portion 1 and is formed of a heat conductive material. In particular, the outer shell portion 3 of the LED unit 10 of the present embodiment protrudes outward from the side of the unit main body 1 and has a protrusion 3b that conducts heat of the LED 2 from the other surface side and dissipates it to the outside. Have.

  Moreover, the LED lighting fixture 20 shown in FIG. 2 using the LED unit 10 of the present embodiment includes the LED unit 10 described above. The LED lighting device 20 includes a frame 12 provided on the front surface 10a side of the LED unit 10 that emits light from the LED 2 provided on the one surface 1aa side of the LED unit 10. The LED lighting device 20 includes a device main body 11 provided on the rear surface side of the LED unit 10 opposite to the front surface 10a side (the lower side of the paper surface of FIG. 2). In particular, in the LED unit 10, the protruding portion 3 b is sandwiched between the frame body 12 and the instrument main body 11. Further, at least one of the instrument main body 11 and the frame body 12 is formed of a heat conductive member that radiates heat from the LED 2 at a portion that contacts the protruding portion 3b.

  In the LED unit 10 of the present embodiment, the protrusion 3b of the outer shell 3 of the LED unit 10 can conduct heat of the LED 2 from the other surface side and efficiently dissipate it to the outside. That is, the LED unit 10 of the present embodiment can have a structure of the LED unit 10 that is more excellent in heat dissipation.

Further, the LED lighting device 20 using the LED unit 10 of the present embodiment can have a structure in which the protruding portion 3b of the LED unit 10 is sandwiched between the device main body 11 and the frame body 12. The LED lighting fixture 20 can also dissipate heat from the fixture main body 11 and the frame body 12 by adopting a structure that sandwiches the protruding portion 3b of the LED unit 10. In other words, the LED lighting fixture 20 can have a structure of the LED lighting fixture 20 that is more excellent in heat dissipation. Furthermore, the LED lighting device 20 has a structure that sandwiches the protruding portion 3b of the LED unit 10, so that the LED unit 10 can be easily assembled and mass-produced more easily than the case where the LED unit 10 itself is fixed by screwing or the like. It is also possible to manufacture the instrument 20.

  Hereinafter, the LED unit 10 and the LED lighting device 20 of this embodiment will be described in more detail.

  The LED unit 10 of the present embodiment has a unit main body 1 whose outer shape is plate-like (for example, disc-like) as a whole. The LED unit 10 includes a plurality of (here, 13) LEDs 2 having LED chips 2 a on the one surface 1 aa side of the unit main body 1. Further, the LED unit 10 accommodates and holds the unit main body 1 and is formed of a thermally conductive material (for example, aluminum, copper or stainless steel) and has a bottomed cylindrical shape (for example, a bottomed cylindrical shape). It has. The LED unit 10 preferably includes a translucent cover portion 1a that can transmit light from the LED 2 provided on the one surface 1aa side of the unit body portion 1. The cover portion 1a is formed in a bottomed cylindrical shape with, for example, a translucent resin or glass, and is attached to the unit main body portion 1 so as to cover the LED 2. Although not shown, the LED unit 10 includes a pair of electric wires that are electrically connected to the LED 2 so that the unit main body 1 can emit light by supplying power to the LED 2 from the outside. The plurality of LEDs 2 are electrically connected in series by a circuit pattern (not shown) or the like on the one surface 1aa side of the unit main body 1. The plurality of LEDs 2 may be not only electrically connected in series, but also connected in parallel or may be connected in series-parallel.

LED2 is, for example, the internal has a LED chip 2a to, a configuration with a resin case or translucent cover with an LED chip 2a or these reflecting portions releasable efficiently to the outside light be able to. The LED chip 2a can be formed using, for example, a gallium nitride compound semiconductor element having a pn junction and capable of emitting desired light such as blue light.

  That is, the LED 2 has a structure including a LED case 2a, a peripheral wall portion that surrounds the LED chip 2a and reflects light from the LED chip 2a, and a resin case that includes a sealing portion that covers the LED chip 2a in the peripheral wall portion. be able to. The LED 2 has a blue LED chip as the LED chip 2a. The LED 2 is a light-transmitting sealing material (for example, a silicone resin, an epoxy resin, a phosphor made of a yellow phosphor that is excited by blue light emitted from a blue LED chip and radiates broad yellow light). Glass). The LED 2 can constitute a white LED that obtains white light. In addition, the fluorescent substance of LED2 is not restricted to a yellow fluorescent substance, For example, you may use a red fluorescent substance and a green fluorescent substance. The LED 2 may constitute a white LED capable of emitting white light by combining the LED chip 2a capable of emitting purple to near-ultraviolet light with a red phosphor, a green phosphor and a blue phosphor. Further, the LED 2 may constitute a white LED capable of emitting white light by combining a red LED chip, a green LED chip, and a blue LED chip.

  Moreover, LED2 may contain the fluorescent substance which absorbs at least one part of the light from LED chip 2a, and converts it into the light of a different wavelength in the translucent cover which covers LED chip 2a. That is, the LED 2 is, for example, a translucent cover in which a resin containing a LED chip 2a that is a gallium nitride compound semiconductor element that emits blue light and a phosphor that absorbs blue light and emits a complementary yellow light. It may have. As a result, the LED 2 can emit white light.

  The unit body 1 used in the LED unit 10 of the present embodiment can be, for example, an aluminum die-cast housing that houses a mounting board on which the LEDs 2 are mounted. The unit main body 1 is not limited to aluminum but may be formed of a metal such as copper or stainless steel as a material having higher thermal conductivity than resin. The unit body 1 may be a plate-shaped mounting substrate itself that has excellent thermal conductivity and can form the circuit pattern and the like. In the LED unit 10 of the present embodiment, the shape of the unit main body 1 is circular, but is not limited thereto, and may be polygonal or elliptical, for example.

  The mounting substrate is formed using, for example, a metal base printed wiring board, and a pair of terminal portions electrically connected to the LED 2 is formed. The mounting substrate uses a metal-based printed wiring board, but is not limited thereto, and for example, a ceramic substrate or a glass epoxy substrate may be used. Moreover, the electric wire is electrically connected to each terminal part via the junction part (not shown) which consists of solder. One electric wire is connected to a terminal portion connected to the plus side of the LED 2, and the other electric wire is connected to a terminal portion connected to the minus side of the LED 2. In the mounting substrate, a reflective layer (not shown) made of a white resist layer or the like covering the portion other than the LED 2 and each terminal portion is formed on the surface side on which the LED 2 is mounted. The mounting substrate can suppress the light emitted from the LED 2 from being absorbed by the mounting substrate.

  In order to increase the thermal conductivity between the unit main body 1 and the mounting substrate, an electrically insulating heat dissipation sheet (not shown) may be disposed between the mounting substrate and the unit main body 1. Therefore, the unit main body 1 can efficiently dissipate the heat generated by the LEDs 2 from the other surface side of the unit main body 1 through the heat dissipation sheet. Moreover, the LED unit 10 of this embodiment dissipates the heat generated by the LED 2 from the other surface side of the unit main body 1 to the outer shell 3 side through the mounting substrate, the heat dissipation sheet, and the unit main body 1. Is possible.

  In addition, as the heat dissipation sheet, a silicone gel sheet using a silicone resin made of a gel-like elastomer material that is gel-like, has a low crosslinking density, is soft, and has elasticity is suitably used. The heat radiating sheet is not limited to the silicone gel as the material of the heat radiating sheet, and a soft elastomer material (for example, acrylic resin material) having electrical insulation and thermal conductivity can also be used.

  Next, the outer shell 3 is formed in a bottomed cylindrical shape that is slightly larger than the outer shape of the unit main body 1 capable of storing and holding the unit main body 1. Further, the outer shell portion 3 of the LED unit 10 of the present embodiment protrudes outward from the side of the unit main body 1 to conduct heat of the LED 2 from the other surface side of the unit main body 1 to dissipate to the outside. It has a pair of plate-like protrusions 3b and 3b.

  In other words, the outer shell portion 3 of the LED unit 10 of the present embodiment extends outward from the open end of the cylindrical portion 3a having a bottomed cylindrical shape, and can be sandwiched between the frame body 12 and the instrument main body 11. It has a protrusion 3b. The LED unit 10 of this embodiment is provided with a pair of plate-like projecting portions 3b, 3b that are integrally continuous from the cylindrical portion 3a in a plan view in a symmetrical position via the cylindrical portion 3a. The number of the protruding portions 3b is not limited to two, and three or more protruding portions may be provided, or an annular ridge provided along the opening end of the cylindrical portion 3a may be formed. The outer shell portion 3 may be formed integrally with the protruding portion 3b and the cylindrical portion 3a, or may be formed separately. The outer shell 3 is preferably provided with a notch 3c so that the unit main body 1 can be easily accommodated. Such an outer shell 3 can be formed by pressing such as an aluminum plate, a copper plate, or a stainless plate having excellent thermal conductivity as compared with a resin, for example.

  Next, the LED lighting fixture 20 provided with the LED unit 10 of this embodiment is demonstrated.

  As shown in FIG. 2, the LED lighting device 20 is a device in which protruding portions 3 b and 3 b protruding from the outer shell portion 3 of the LED unit 1 are provided on the rear side of the LED unit 10 (the lower side of the paper surface of FIG. 2). The main body 11 is accommodated in an annular accommodating step portion 11b formed in a step shape from the concave portion 11a. In other words, the LED lighting device 20 is configured such that the cylindrical portion 3a of the outer shell portion 3 is housed in the recess 11a of the device body 11, and the protruding portion 3b of the outer shell portion 3 is housed in the housing step portion 11b. doing. Here, in the LED lighting apparatus 20 using the LED unit 10 of the present embodiment, the tubular portion 3a is in contact with the inner bottom surface of the recess 11a, and the protruding portion 3b is in contact with the accommodation step portion 11b. In addition, each protrusion part 3b is carrying out the circular arc shape along the shape of the inner wall of the annular | circular shaped accommodation step part 11b at the front-end | tip part of the protrusion part 3b.

  Furthermore, in the LED lighting fixture 20 using the LED unit 10 of this embodiment, the frame body 12 is provided on the front surface 10a side of the LED unit 10. The LED lighting device 20 is assembled so that the protruding portion 3b of the LED unit 10 can be sandwiched between the frame body 12 and the device body 11. Here, the LED lighting apparatus 20 is formed using an aluminum material so that the entire apparatus main body 11 and the entire frame body 12 are heat conductive members. Therefore, the instrument main body 11 and the frame body 12 can efficiently dissipate the heat of the LED 2 from the portion in contact with the protruding portion 3b made of an aluminum material. In addition, although aluminum is employ | adopted as a material of the instrument main body 11 and the frame 12, you may employ | adopt metals other than aluminum.

  The LED lighting device 20 is configured such that, for example, the device body 11 and the frame body 12 can be fixed by an assembly screw (not shown) in a state where the LED unit 10 is sandwiched between the device body 11 and the frame body 12. doing. The LED lighting device 20 is not limited to an assembly screw in order to sandwich the frame 12 and the device body 11. The LED lighting device 20 holds the LED unit 10 between the device main body 11 and the frame body 12, and the LED lighting device 20 can be assembled relatively easily. In addition, the LED lighting fixture 20 is provided with a pair of electric wires (not shown) that are electrically connected to the LED 2 and led out from the cutout portion 3 c side in the peripheral portion of the unit main body 1. The electric wire is configured to be electrically connectable to the outside through a through hole (not shown) formed in the instrument body 11.

  The frame body 12 has an outer shape that substantially matches the outer shape of the disk-shaped instrument body 11. The frame 12 is provided with an opening 12a at the center, and a translucent front panel 13 is provided so as to close the opening 12a. The front panel 13 is made of, for example, a translucent material (for example, silicone resin, acrylic resin, glass, etc.). The LED lighting device 20 radiates light from the LED 2 to the outside via the front panel 13. The front panel 13 may have a flat plate shape, or a lens shape in order to collect or diffuse the light from the LED 2.

  More specifically, the LED lighting fixture 20 including the LED unit 10 of the present embodiment includes an acrylic front panel 13 that transmits light emitted from the LED 2 in the frame body 12. The LED lighting device 20 has a structure in which the protruding portion 3b is sandwiched between the frame body 12 and the device main body 11. The protruding portion 3b is structured to be fitted to the accommodation step portion 11b. The LED lighting fixture 20 may fix the protrusion 3b accommodated in the accommodation step portion 11b of the fixture main body 11 with a sealing material (for example, silicone resin) for hermetic sealing. As the sealing material, a silicone resin is suitably used as the material of the sealing material, but other resin materials (for example, epoxy resin, urethane resin, etc.) may be used.

  The LED unit 10 of the present embodiment can dissipate the heat of the LED 2 to the outside not only through the rear surface side of the LED unit 10 but also through the protruding portion 3b protruding from the side of the unit main body 1 to the outside. It becomes possible to improve heat dissipation. Moreover, the LED lighting fixture 20 provided with the LED unit 10 of this embodiment makes the LED unit 10 hold | maintained by pinching the protrusion part 3b of the outer shell part 3 between the frame 12 and the instrument main body 11. FIG. Yes. Therefore, the LED lighting fixture 20 can be assembled by holding the LED unit 10 relatively easily, and the mass productivity of the LED lighting fixture 20 can be improved.

(Embodiment 2)
The LED lighting device 20 in the present embodiment shown in FIGS. 3 to 5 is provided with a through hole 3d in the protruding portion 3b of the first embodiment shown in FIG. 2, and positions the protruding portion 3b in the device main body 11 or the frame body 12. The positioning part is provided. In addition, about the component similar to Embodiment 1, the same code | symbol is attached | subjected and description is abbreviate | omitted suitably.

  In the LED lighting device 20 according to the present embodiment, at least one of the device main body 11 and the frame body 12 has a positioning portion that positions the protruding portion 3b with respect to the device main body 11 or the frame body 12.

  More specifically, as shown in FIG. 4, the LED lighting fixture 20 is a through-hole 3 d that penetrates the protruding portion 3 b of the LED unit 10 as a positioning portion that positions the protruding portion 3 b with respect to the fixture body 11. The instrument body 11 has a projection 11d penetrating through. That is, when the LED lighting apparatus 20 is assembled so that the protrusion body 3b is sandwiched between the apparatus body 11 and the frame body 12, the protrusion 11d provided in the apparatus body 11 is inserted into the through-hole 3d provided in the protrusion section 3b. Is inserted. Thereby, the LED lighting fixture 20 can position the LED unit 10 on the fixture main body 11.

  Further, as shown in FIG. 5, the LED lighting fixture 20 is a protrusion that penetrates the through hole 3 d that is provided in the protruding portion 3 b of the LED unit 10 as a positioning portion that positions the protruding portion 3 b with respect to the frame 12. The part 12d may be provided in the frame body 12.

  The LED lighting device 20 using the LED unit 10 of the present embodiment is configured such that the position of the protruding portion 3b with respect to the device body 11 and the frame body 12 is determined before the LED unit 10 is sandwiched between the frame body 12 and the device body 11. A configuration in which positioning is performed in advance may be employed. When the LED lighting device 20 is assembled so that the protruding portion 3b is sandwiched between the fixture main body 11 and the frame body 12, the protruding portion 12d provided in the frame body 12 is inserted into the through hole 3d provided through the protruding portion 3b. Let Thereby, the LED lighting device 20 can also position the LED unit 10 on the frame 12.

  In the LED lighting device 20, at least one of the device main body 11 and the frame body 12 can position the protrusion 3 b on the device main body 11 or the frame body 12. That is, the LED lighting device 20 can cause the protrusions 11 d and 12 d to function as a positioning part of the LED unit 10.

  The LED lighting fixture 20 including the LED unit 10 of the present embodiment can be assembled by positioning the LED unit 10 relatively easily, and it becomes possible to increase mass productivity.

(Embodiment 3)
The LED lighting fixture 20 in this embodiment is provided with a protruding portion 3b as shown in FIGS. 6 to 8 instead of a positioning portion for positioning the LED unit 10 of Embodiment 2 shown in FIGS. The difference is that a temporary holding portion is held. In addition, about the component similar to Embodiment 2, the same code | symbol is attached | subjected and description is abbreviate | omitted suitably.

  In the LED lighting apparatus 20 according to the present embodiment, the frame body 12 has a protruding portion 12d that functions as a temporary holding portion that temporarily holds the protruding portion 3b on the frame body 12.

As shown in FIG. 6, the protruding portion 12 d has, for example, a round bar-shaped shaft portion 12 d 1 that protrudes substantially perpendicular to the annular frame 12 and a large-diameter portion 12 d 2, and has a T shape. Shape. In addition, the protruding portion 3b has an insertion hole 3d1 slightly larger than the diameter of the large-diameter portion 12d2 and a shaft smaller than the large-diameter portion 12d2 communicating with the insertion portion 3d1 so that the protruding portion 12d can be inserted and held. A through hole 3d having an insertion holding portion 3d2 slightly larger than the diameter of the portion 12d1 is provided. LED unit 10 in a plan view, the unit body part 1 as a symmetrical, a through hole 3d is kicked set to, respectively its pair of projecting portions 3b. The through holes 3d provided in each of the pair of protrusions 3b are provided with insertion holding portions 3d2 in opposite directions from the insertion portion 3d1 so that the LED unit 10 can be rotated with respect to the frame body 12. .

  The LED unit 10 inserts the protrusion 12d of the frame 12 into the insertion holding portion 3d2 of the through hole 3d when the LED lighting device 20 is assembled (see FIG. 7). Further, the LED unit 10 is rotated with respect to the frame body 12 so that the large-diameter portion 12d2 can be held by the insertion holding portion 3d2 communicating with the insertion holding portion 3d2 (see FIG. 7). Thereby, the LED unit 10 can be temporarily held by the frame body 12.

  In addition, the LED lighting device 20 is not illustrated, but when the LED unit 10 is temporarily held by the device main body 11, for example, the protrusion of FIG. 7 provided in the device main body 11 in the through hole 3d penetrating the protrusion 3b. It is good also as a structure which provided the projection part (not shown) of the shape similar to the part 3d. The LED lighting device 20 may have a configuration in which the protruding portion of the device main body 11 is inserted into the through hole 3d of the LED unit 10 and the LED unit 10 is temporarily held by the device main body 11.

  Thereby, the LED lighting fixture 20 provided with the LED unit 10 of this embodiment can hold | maintain and assemble the LED unit 10 comparatively easily, and it becomes possible to improve mass-productivity.

(Embodiment 4)
The LED lighting apparatus 20 shown in FIGS. 9 and 10 in the present embodiment has a configuration in which an energizing portion 3e capable of energizing the LED unit 10 is provided at the edge of the through hole 3d that is provided through the protruding portion 3b. . In addition, about the component similar to each above-mentioned embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted suitably.

  As shown in FIGS. 9 and 10, the LED lighting device 20 in the present embodiment can energize the LED unit 10 from the device main body 11 in a state where the protruding portion 3 b is sandwiched between the device main body 11 and the frame body 12. It has an energization part 3e.

  More specifically, the LED lighting apparatus 20 includes an energization unit 3e that is electrically connected to the electric wires 1b and 1b led out from the unit main body 1 of the LED unit 10. Moreover, the LED lighting fixture 20 is provided with the connector 11d connected with the electricity supply part 3e which comprises the connector of the LED unit 10 side at the fixture main body 11 side. The LED lighting device 20 is configured to be able to supply power to the LED 2 on the LED unit 10 side via an energization portion 3e in which a plug blade 3e1 is inserted into a connector 11d on the device body 11 side, and an electric wire 1b from the energization portion 3e. .

  The LED lighting apparatus 20 in the present embodiment can detachably connect the energization unit 3e to the connector 11d on the power supply unit side.

  Therefore, since the LED lighting fixture 20 in this embodiment is provided with the electricity supply part 3e which can be detachably connected with the connector 11d by the side of the power supply unit 15 in the front-end | tip part of a pair of electric wire 1b, 1b, LED unit 10 is provided. The connection work at the time of attaching / detaching the LED unit 10 can be facilitated, and the LED unit 10 can be replaced relatively easily.

  In addition, the LED lighting apparatus 20 in this embodiment is a dummy connector 3f that is not electrically connected to the LED 2 at the position of the protruding portion 3b that is symmetrical to the energizing portion 3e through the cylindrical portion 3a in plan view. Is provided. Moreover, the LED lighting fixture 20 is provided with the dummy connector 11f which is not electrically connected with LED2 in the position by the side of the instrument main body 11 symmetrical with the connector 11d via the cylindrical part 3a in planar view. The LED lighting fixture 20 can connect the dummy connector 11f to the dummy connector 3f. Thereby, the LED lighting device 20 can temporarily hold the LED unit 10 by connecting the energization part 3e and the connector 11d, and connecting the dummy connector 3f and the dummy connector 11f, respectively. That is, the connector 11d and the dummy connector 11f can function as a temporary holding portion provided in the instrument body 11.

(Embodiment 5)
The LED lighting apparatus 20 in the present embodiment shown in FIG. 11 is different from the third embodiment shown in FIG. 6 in that the frame body 12 including the radiation fins 12c is used instead of the annular frame body 12 of the third embodiment. . In addition, about the component similar to Embodiment 3, the same code | symbol is attached | subjected and description is abbreviate | omitted suitably.

  As shown in FIG. 11, the LED lighting fixture 20 in the present embodiment has the heat dissipation fins 12 c that dissipate the heat of the LED 2 that is thermally conducted through the protruding portions 3 b.

  More specifically, the LED lighting device 20 has a plurality of heat radiation fins 12c radially along the outer periphery of the annular frame 12 in plan view. The LED lighting device 20 can conduct heat of the LED 2 from the LED unit 10 to the frame body 12 through the protruding portion 3b and efficiently radiate the heat from the radiation fins 12c.

  The LED lighting device 20 is not limited to the one provided with the heat radiation fins 12c for radiating the heat from the LEDs 2 only in the frame body 12, but as shown in FIG. A heat radiating fin 11c may be provided.

(Embodiment 6)
The LED lighting apparatus 20 shown in FIG. 13 uses the apparatus main body 11 and the frame instead of using the apparatus main body 11 and the frame 12 of the fifth embodiment shown in FIG. The point which the body 12 was equipped with the press holding | maintenance part 14 which press-holds the instrument main body 11 and the frame 12 differs. In addition, about the component similar to Embodiment 5, the same code | symbol is attached | subjected and description is abbreviate | omitted suitably.

  As shown in FIGS. 13 and 14, the LED lighting device 20 in the present embodiment can press and hold the device main body 11 and the frame 12 in a state where the device main body 11 and the frame 12 sandwich the protruding portion 3b. A press holding part 14 is provided.

More specifically, the LED lighting fixture 20 is formed with notched peripheral portions 11h where the heat dissipating fins 11c are not provided at a plurality of locations (four locations here) along the outer periphery of the fixture body 11. Similarly, the LED lighting fixture 20 is formed with notched peripheral portions 12f where the heat dissipating fins 12c are not provided at a plurality of locations (here, four locations) along the outer periphery of the frame body 12. The LED lighting fixture 20 has a locking projection 11g on each cutout peripheral portion 11h on the side surface side of the fixture body 11 (see FIG. 14). Further, the LED lighting device 20 has a substantially rectangular recess 12g on the front side of the frame 12 (upper side of the paper in FIG. 13) corresponding to the position of the notched peripheral portion 12f in the frame 12. . In addition, the LED lighting device 20 includes the press holding portion 14 having a substantially J-shaped cross-sectional view in which the fixture main body 11 and the frame body 12 are pressed and held in a state where the fixture main body 11 and the frame body 12 sandwich the protruding portion 3b. Have. The press holding part 14 can be formed, for example, by bending a plate-like stainless steel material. The press holding portion 14 includes a claw portion 14 a that can be engaged with the recess portion 12 g of the frame body 12 at the tip portion. Moreover, the press holding | maintenance part 14 is provided with the finger hook part 14c on the opposite side to the nail | claw part 14a of a front-end | tip part. The press holding portion 14 includes a locking portion 14b that can be locked with the locking projection 11g of the instrument body 11 between the claw portion 14a and the finger hooking portion 14c.

  The press holding part 14 can be formed from a plate-like body having elasticity capable of pressing and holding the frame body 12 and the instrument body 11. In the LED lighting device 20, when the frame body 12 and the instrument main body 11 are pressed and held by the press holding portion 14, the protruding portion 3 b is sandwiched between the frame body 12 and the instrument main body 11.

  The pressure holding part 14 elastically deforms the pressure holding part 14, and a claw part 14 a and a locking part 14 b are respectively formed in a recess 12 g provided in the frame body 12 and a locking projection part 11 g provided in the instrument body 11. It is possible to press and hold the instrument main body 11 and the frame body 12.

  The LED lighting device 20 in the present embodiment presses and holds the fixture body 11 and the frame body 12 relatively easily by the press holding portion 14 in a state where the fixture body 11 and the frame body 12 sandwich the protruding portion 3b. Is possible.

  Further, the LED lighting device 20 moves the finger hook portion 14c of the press holding portion 14 in a direction away from the device main body 11, so that the press holding portion 14 is bent and the locking portion 14b is engaged with the claw portion 14a as a fulcrum. It leaves | separates from the stop projection part 11g. Thereby, the LED lighting device 20 can make the frame 12 detachable from the device main body 11.

1 Unit body 1aa One surface 1ab Other surface 2 LED
DESCRIPTION OF SYMBOLS 3 Outer shell part 3b Protrusion part 3e Current supply part 10 LED unit 11 Appliance main body 12 Frame 12c Radiation fin 14 Press holding | maintenance part 20 LED lighting fixture

Claims (6)

A unit main body provided with an LED on one surface side and dissipating heat generated by the LED from the other surface side opposite to the one surface side, and an outer formed by housing and holding the unit main body portion and formed of a heat conductive material e Bei a shell portion, the front Kigaikara portion protrudes outwardly from the side end of the unit body, having a protrusion to dissipate the LED heat from the other surface side to the outside by thermal conductivity LED unit ,
A frame provided on the front side of the LED unit that emits light from the LED provided on the one surface side of the LED unit;
An instrument body provided on the rear side of the LED unit opposite to the front side;
An LED lighting apparatus comprising:
In the LED unit, the projecting portion is sandwiched between the frame body and the instrument body, and at least one of the instrument body and the frame body is configured to transfer heat from the LED to a portion in contact with the projecting section. An LED lighting apparatus, wherein the LED lighting apparatus is formed of a thermally conductive member that dissipates heat. 2. The LED lighting apparatus according to claim 1, wherein at least one of the apparatus main body and the frame includes a positioning portion that positions a position of the protrusion with respect to the apparatus main body or the frame. At least one of the instrument main body and the frame body is a temporary holder that temporarily holds the protrusion relative to the instrument body or the frame body in a state in which the instrument main body and the frame body do not sandwich the protrusion. The LED lighting apparatus according to claim 1, further comprising a holding portion. The said protrusion part has an electricity supply part which can supply with electricity to the said LED unit from the said instrument main body side in the state in which the said protrusion part was clamped by the said instrument main body and the said frame. The LED lighting apparatus according to claim 2. 5. The LED lighting apparatus according to claim 1, wherein the frame body has a radiation fin that dissipates heat of the LED that is thermally conducted through the protruding portion. 6. The instrument main body and the frame body are sandwiched by a press holding portion that presses and holds the instrument main body and the frame body in a state where the instrument main body and the frame body sandwich the projecting portion. The LED lighting apparatus according to any one of claims 1 to 5.

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