JP5477590B2 - Lamp device and lighting device - Google Patents

Description

  Embodiments described herein relate generally to a lamp device using a semiconductor light emitting element as a light source, and an illumination device using the lamp device.

  Conventionally, there is a lamp device using a GX53 type base. This lamp device has a metal base, and a light emitting module having a semiconductor light emitting element is attached to one surface of the base, and a translucent cover is attached to cover the light emitting module. On the other side, a base GX53 type with a pair of lamp pins protruding is attached, and a lighting circuit is housed between the base and the base.

JP 2010-129488 A

  In the lamp device as described above, in order to increase the output, it is necessary to efficiently dissipate the heat generated by the semiconductor light emitting element and the lighting circuit to the outside. Therefore, the base and the metal base are made of metal. There is a need. However, if the base is made of metal, a configuration in which the lamp pins and the lighting circuit are attached in an insulated state so as not to contact each other is necessary, which increases the number of parts and complicates the structure.

  The present invention has been made in view of the above points, and an object thereof is to provide a lamp device that can reduce the number of parts and can be simplified, and an illumination device using the lamp device.

  The lamp device of the embodiment includes a light emitting unit having a semiconductor light emitting element. A substrate having a light emitting part attached to one surface is provided. A metal base attached to the other surface of the substrate is provided. A pair of lamp pins protruding from the base is provided. A lighting circuit having a lighting circuit board on which a lighting circuit component is mounted is provided in the base. A pair of lamp pin attachment portions for attaching the pair of lamp pins respectively, and an insulating portion interposed between the inner surface of the base and the lighting circuit, and an insulator attached to the base.

  According to the lamp device of the present invention, it is possible to reduce the number of parts because an insulator having a pair of lamp pin mounting portions to which the pair of lamp pins are respectively attached and an insulating portion interposed between the inner surface of the base and the lighting circuit is used. Can be expected to be simplified.

It is sectional drawing of the lamp device which shows 1st Embodiment. It is the perspective view of the one part decomposition | disassembly state seen from the inner side by making the upper and lower surfaces of the lamp apparatus shown in FIG. It is the perspective view of the one part assembly state which looked at the upper and lower surfaces of the lamp apparatus shown in FIG. It is a perspective view of the one part assembly state seen from the outer side of the lamp device same as the above. It is a front view of the base | substrate of a lamp apparatus same as the above, and a light emitting module. It is a perspective view of the illuminating device provided with the lamp device and socket device same as the above. It is sectional drawing of the lamp device which shows 2nd Embodiment. It is a perspective view which shows a part of insulator of a lamp device same as the above. It is an expanded view which shows an example of the insulating sheet of a lamp apparatus same as the above. It is an expanded view which shows the other example of the insulating sheet of a lamp apparatus same as the above. It is the one part perspective view which assembled the insulating sheet of the other example of a lamp device same as the above.

  Hereinafter, a first embodiment will be described with reference to FIGS. 1 to 6.

  As shown in FIG. 6, the lighting device 11 is, for example, a downlight, and includes a fixture main body 12, a socket device 13 attached to the fixture main body 12, and a flat lamp detachably attached to the socket device 13. A device 14 is provided. In the following, regarding the directional relationship such as the vertical direction, the light source side that is one surface of the lamp device 14 is on the bottom and the base side that is the other surface is on the basis of the state in which the flat lamp device 14 is mounted horizontally. Will be described.

  The instrument body 12 is made of, for example, metal, and is configured so as to integrally have a reflector function with an open bottom surface.

  Next, as shown in FIGS. 1 and 6, the lamp device 14 includes a base body 17, a light emitting module 18 attached to the lower surface of the base body 17, a globe 19 attached to the base body 17 so as to cover the light emitting module 18, and the base body A base 20 attached to the upper surface of 17 and a lighting circuit 21 accommodated in the base 20 are provided.

  As shown in FIGS. 1, 5, and 6, the base 17 is integrally formed of, for example, a metal such as an aluminum die cast having excellent thermal conductivity and heat dissipation or ceramics. The base body 17 has a substrate mounting portion 23 formed in a flat disk shape, and a substrate mounting surface 24 to which the light emitting module 18 is attached in close contact with heat conduction is formed on the lower surface of the substrate mounting portion 23. A cylindrical base-side fitting portion 25 is formed in the periphery of the upper surface of the substrate mounting portion 23, and a circular and concave base housing portion 26 for fitting the base 20 is formed inside the base-side fitting portion 25. A plurality of heat radiating fins 27 are formed outside the base-side fitting portion 25.

  A wiring hole 28 for passing an electric wire electrically connecting the light emitting module 18 and the lighting circuit 21 and a screw for attaching the light emitting module 18 in close contact with the board mounting portion 23 are screwed to the board mounting portion 23. A screw hole (not shown) and a plurality of insertion holes 29 through which screws for attaching the base 20 to the board attachment portion 23 are formed are formed.

  On the substrate mounting surface 24 of the substrate mounting portion 23, a plurality of depressions 30 are formed in the peripheral region excluding the region where the light emitting module 18 is mounted.

The shape of the hollow portion 30 may be any, but when it is circular, it is preferable that d ≧ φ / 4, where φ is the diameter of the circle and d is the depth. When a is the long side, b is the short side, and c is the depth, a · b ≦ 2 (a · b) c is preferable. By forming these depressions 30, it is possible to increase the surface area of the substrate mounting surface 24 and improve heat dissipation, and to reduce the weight of the base 17. Instead of the recess 30, a hole penetrating the substrate attachment portion 23 may be formed, and further improvement in heat dissipation and weight reduction can be achieved.

  1 and 5, the light emitting module 18 is attached to the lower surface of the substrate 33 so as to cover the substrate 33, the light emitting portion 34 formed at the center of the lower surface of the substrate 33, and the periphery of the light emitting portion 34. And an insulating collar 35 and a connector 36 mounted on the lower surface of the substrate 33 and electrically connected to the lighting circuit 21. The upper surface of the substrate 33 is joined to the substrate mounting surface 24 of the base body 17 with the insulating sheet 37 interposed therebetween, and a plurality of screws are screwed to the substrate mounting portion 23 of the base body 17 through the insulating collar 35. Good thermal conductivity to the substrate 17 is ensured.

  The substrate 33 is formed in a rectangular plate shape from, for example, a metal such as an aluminum die cast having excellent thermal conductivity and heat dissipation or ceramics.

  For the light emitting unit 34, for example, a semiconductor light emitting element 38 such as an LED element or an EL element is used. In this embodiment, an LED element is used as the semiconductor light emitting element 38, and a COB (Chip On Board) system in which a plurality of LED elements are mounted on the substrate 33 is adopted. That is, a plurality of LED elements are mounted on the substrate 33, the plurality of LED elements are electrically connected in series by wire bonding, and the sealing resin 39, which is a transparent resin such as silicone resin mixed with phosphor, is used. A plurality of LED elements are integrally covered and sealed. For example, an LED element that emits blue light is used as the LED element, and a phosphor that emits yellow light by being excited by part of the blue light from the LED element is mixed in the sealing resin. Therefore, the light emitting part 34 is configured by the LED element which is the semiconductor light emitting element 38, the sealing resin 39, and the like, and the surface of the sealing resin 39 which is the surface of the light emitting part 34 becomes a light emitting surface. Illumination light is emitted. The light emitting unit 34 may use a method of mounting a plurality of SMD (Surface Mount Device) packages with connection terminals on which LED elements are mounted on the substrate 33.

  As shown in FIGS. 1 and 6, the globe 19 is made of, for example, a synthetic resin or glass, has translucency and diffusibility, and emits light attached to the substrate attachment surface 24 of the base body 17. The module 18 is fitted on the peripheral edge of the base 17 and is locked by a claw structure so as to cover the module 18. On the periphery of the surface of the globe 19, a pair of display protrusions 42 for displaying the lamp pin position is provided.

  As shown in FIGS. 1 to 4, the base 20 is of the GX53 type and has a base body 45, and a pair of lamp pins 46, an insulator 47, and a base cover 48 are attached to the base body 45. Further, the lighting circuit 21 is attached by an insulator 47.

  The base body 45 is integrally formed of, for example, a metal such as an aluminum die-casting excellent in thermal conductivity and heat dissipation, and has an annular base surface part 51 and a cylinder protruding from the peripheral part of the base surface part 51 to the lower surface side. And a cylindrical protruding portion 53 protruding from the central region of the base face portion 51 to the upper surface side. Thus, the base body 45 is opened on the lower surface side, and a lighting circuit storage portion 54 that stores the lighting circuit 21 is formed inside.

  A plurality of bosses 56 each having a mounting hole 55 are formed on the inner surface of the base-side fitting portion 52. A plurality of screws (not shown) are screwed into the mounting holes 55 of the boss 56 through the insertion holes 29 of the base body 17, whereby the base body 17 and the base 20 are brought into contact with each other so as to be thermally conductive and fixed.

  A pair of opening portions 57 are formed in the base surface portion 51 in positions symmetrical with respect to the center of the base 20 and at which the pair of lamp pins 46 are disposed, and the protruding portions are formed on the side surfaces of the protruding portions 53 facing the opening portions 57. A holding wall 58 is formed at a position displaced inward from the outer peripheral surface of 53. A plurality of flat portions 59 are formed on a part of the inner peripheral surface of the protruding portion 53, and a tip surface 60 that is the upper surface of the protruding portion 53 is formed.

  A pair of key groove portions 61 are formed on the outer peripheral surface of the protruding portion 53 at positions that are symmetrical with respect to the center of the base 20 and are shifted from the positions where the pair of lamp pins 46 are disposed. Each key groove portion 61 has a vertical groove portion 62 formed along the vertical direction communicating with the upper surface of the protruding portion 53, and a horizontal groove portion 63 formed along the circumferential direction of the protruding portion 53 below the protruding portion 53. It is formed in a substantially L shape.

  The lamp pin 46 is made of a conductive metal, has a large-diameter portion 66 formed at the distal end, and a connecting portion 68 that is electrically connected to the mounting circuit 67 and the lighting circuit 21 attached to the insulator 47 at the proximal end. Is formed. The attachment portion 67 has an attachment base portion 69 that is slightly larger in diameter than the large diameter portion 66 and a flange portion 70 that has a larger diameter than the attachment base portion 69. The flange part 70 is provided with a linear notch part in a part of the circumferential surface, and is formed in an irregular shape in the circumferential direction.

  The insulator 47 is integrally formed of an insulating synthetic resin and has a pair of lamp pin mounting portions 73 for mounting the pair of lamp pins 46 and a pair of lighting circuit boards for holding the lighting circuit board of the lighting circuit 21, respectively. Part 74, and an insulating part 75 interposed between the inner peripheral surface of the base 20 and the lighting circuit 21 held by the lighting circuit board holding part 74.

  The pair of lamp pin mounting portions 73 are formed at symmetrical positions with respect to the center of the insulator 47, and are fitted into the respective openings 57 of the base body 45 from the lower surface so that the upper surface and the surface of the base surface part 51 of the base body 45 A cover portion 76 that is a unit, and a contact portion 77 that contacts the lower surface of the base surface portion 51 of the base body 45 in a state where the cover portion 76 is fitted in the opening 57 of the base body 45. In the center of the lamp pin mounting portion 73, a hole portion 78 into which the large diameter portion 66 of the lamp pin 46 can be inserted and the mounting base portion 69 is fitted is formed, and the mounting base portion 69 of the lamp pin 46 is fitted in the hole portion 78. A recessed portion 79 into which the flange portion 70 of the lamp pin 46 is fitted is formed. In order to fit the flange portion 70 in a non-rotating state, the hollow portion 79 is formed in an irregular shape in the circumferential direction in accordance with the shape of the flange portion 70. From the upper surface of the lamp pin mounting portion 73, a cover portion 80 is formed which is disposed outside the holding wall 58 of the protruding portion 53 and is flush with the outer peripheral surface of the protruding portion 53.

  Each lighting circuit board holding portion 74 has a holding piece 81 that is formed to protrude from the lamp pin mounting portion 73 to the upper surface side and is arranged inside the holding wall 58 of the protruding portion 53 of the base body 45. A claw portion 82 that holds the lighting circuit board of the lighting circuit 21 is formed at the tip of the holding piece 81. The holding piece 81 functions as a part of the insulating portion 75 and also has a function of holding the holding wall 58 with the cover portion 80 interposed therebetween.

  The insulating portion 75 is formed in a cylindrical shape that protrudes from both the lower surface and the upper surface of the lamp pin mounting portion 73 and can be inserted inside the protruding portion 53, and the base 20 protrudes from a part of the circumferential direction. A flat portion 83 that fits with the flat portion 59 of the portion 53 is formed.

  The base cover 48 is made of a synthetic resin having insulating properties and heat insulation properties, and has a closing portion 84 that closes the lower surface opening of the base body 45, and the lamp pin mounting portion 73 and the lamp pin 46 of the insulator 47 are closed from the closing portion 84. A cylindrical presser portion 85 that abuts the lower surface is formed to protrude. The closing portion 84 of the base cover 48 is formed with a wiring hole (not shown) through which an electric wire for electrically connecting the light emitting module 18 and the lighting circuit 21 is passed. The base cover 48 is sandwiched between the base body 17 and the base 20 when the base body 17 and the base 20 are fixed, and the presser portions 85 are the lower surfaces of the lamp pin mounting portions 73 and the lamp pins 46 of the insulator 47. The lamp pin mounting portions 73 and the lamp pins 46 of the insulator 47 are held by the base body 45.

  The lighting circuit 21, for example, constitutes a power supply circuit that outputs DC power of a constant current, and is a disk-shaped lighting circuit board 88 and a plurality of electronic components mounted on the lighting circuit board 88. A lighting circuit component 89 is provided. The lighting circuit board 88 is inserted inside the insulating portion 75 of the insulator 47 and positioned and held in contact with the claw portions 82 of the pair of holding pieces 81 of the insulator 47. The lighting circuit board 88 that is held by the insulator 47 and attached to the base body 45 is disposed in the protruding portion 53 of the base body 45, and in this arrangement state, between the lower surface of the lighting circuit board 88 and the base cover 48. Is larger than the space formed between the upper surface of the lighting circuit board 88 and the front end surface 60 of the protruding portion 53, so that a large lighting circuit component 89 is formed on the lower surface of the lighting circuit board 88. Many lighting circuit components 89 are mainly mounted, and the lead wire 89a of the lighting circuit component 89 mounted on the lower surface of the lighting circuit board 88 is projected on the upper surface of the lighting circuit board 88 or a small size such as a chip component. The lighting circuit component 89 is mounted.

  The electric wire connected to the input side of the AC power source of the lighting circuit 21 is electrically connected to the connecting portion 68 of each lamp pin 46 by the electric wire, and the electric wire connected to the output side of the DC power source of the lighting circuit 21 is connected to the cap cover 48. The wiring hole and the wiring hole 28 of the substrate 17 are electrically connected to the connector 36 of the light emitting module 18.

  Further, between the inside of the protrusion 53 of the base body 45 and the insulator 47 and the lighting circuit board 88 of the lighting circuit 21, a filler 91 such as silicone resin having insulation and thermal conductivity is filled. The insulator 91 and the lighting circuit 21 are fixed to the base body 45 by the filler 91, and heat generated by the lighting circuit 21 can be efficiently conducted to the base body 45.

  Next, as shown in FIG. 6, the socket device 13 has an annular socket body 94 having an opening 93 at the center. On the lower surface of the socket body 94, a pair of connection holes 95 that allow the lamp pins 46 of the lamp device 14 to be inserted and rotated are formed at symmetrical positions with respect to the center of the socket device 13. . These connection holes 95 are long holes extending in the circumferential direction of the socket body 94, and an enlarged diameter portion 96 into which the large diameter portion 66 of the lamp pin 46 can be inserted is formed at one end thereof. Inside each connection hole 95, a terminal (not shown) to which the lamp pin 46 inserted into the connection hole 95 is electrically connected is accommodated.

  On the inner peripheral surface of the socket body 94, the lamp pin 46 of the base 20 is inserted into the connection hole 95 and rotated, so that the substantially L-shaped formed on the outer peripheral surface of the protruding portion 53 of the base 20. A key portion 97 that protrudes into the key groove portion 61 and supports the base 20 to the socket body 94 is projected.

  Next, the operation of the illumination device 11 will be described.

  In order to attach the lamp device 14 to the socket device 13, the projection 53 of the base 20 of the lamp device 14 is inserted into the opening 93 of the socket device 14, and the circumferential position of the lamp device 14 is adjusted to adjust each lamp pin 46. Is inserted into the enlarged diameter portion 96 of the connection hole 95 of the socket device 13. Along with this, the longitudinal groove portion 62 of each key groove portion 61 of the base 20 is fitted into each key portion 97 of the socket device 13.

  With the lamp device 14 pressed against the socket device 13, each lamp pin 46 of the lamp device 14 moves through the connection hole 95 of the socket device 13 by rotating the lamp device 14 in the mounting direction. The lateral groove 63 of the key groove 61 of the base 20 is fitted into the key 97 of the socket device 13, and the lamp device 14 is supported by the socket device 13.

  Further, by supplying power to the lighting circuit 21 from the power supply line through the terminal of the socket device 13 and the lamp pin 46 of the lamp device 14, the lighting power is supplied from the lighting circuit 21 to the semiconductor light emitting element 38 of the light emitting module 18. Emits light.

  The heat generated by the semiconductor light-emitting element 38 of the light-emitting module 18 that is lit is mainly thermally conducted to the substrate 33, and is thermally conducted from the substrate 33 to the base 17, and from the outer surface of the base 17 having the radiation fins 27 to the air. Heat is conducted to the base 20 from the base 17, and heat is radiated from the base 20 into the air or conducted to the socket device 13 to be radiated.

  The heat generated by the lighting circuit component 89 of the lighting circuit 21 is efficiently conducted to the base 20 mainly through the filler 91 in contact with the lighting circuit board 88 and the lead wire 89a of the lighting circuit component 89. The heat is radiated from the base 20 into the air or is conducted to the socket device 13 to be radiated.

  Further, when assembling the base 20 in the manufacturing process of the lamp device 14, a pair of lamp pins 46 and a lighting circuit 21 connected in advance with an electric wire are incorporated in an insulator 47, and the insulator 47 is filled in the protruding portion 53 in advance. It is assembled in the base body 45 filled with the material 91. The lighting circuit board holding part 74 and the insulation part 75 of the insulator 47 and the lighting circuit board 88 incorporated in the base body 45 are arranged inside the protrusion 53 and pressed against the filler 91, and the insulator 47 and the lighting The circuit board 88 is fixed to the base body 45 with the filler 91.

  A base cover 48 is assembled in the opening of the base body 45 of the assembled base 20, and this base 20 is combined with the base body 17. At this time, an electric wire connected from the lighting circuit 21 to the light emitting module 18 is drawn out from the substrate mounting surface 24 of the base 17 through the wiring hole of the base cover 48 and the wiring hole 28 of the base 17 and is attached to the substrate mounting surface 24 of the base 17 in advance. Connected to the connector 36 of the light emitting module 18.

  A globe 19 is attached to the base body 17 so as to cover the light emitting module 18.

  According to the lamp device 14, the pair of lamp pin mounting portions 73 for mounting the pair of lamp pins 46, the lighting circuit board holding portion 74 for holding the lighting circuit board 88, and the inner surface of the base 20 and the lighting circuit 21, respectively. By using the insulator 47 having the intervening insulating portion 75 integrally, the single insulator 47 can also function as three components, so that the number of components can be reduced and simplified.

  Therefore, when the base 20 is assembled, the pair of lamp pins 46 and the lighting circuit 21 are incorporated into the insulator 47, and the insulator 47 is incorporated into the base body 45, so that the pair of the pair of the metal base body 45 is insulated. The lamp pin 46 and the lighting circuit 21 can be incorporated, and the productivity can be improved.

  Further, by combining the base 20 incorporating the base cover 48 with the base body 17, the presser part 85 of the base cover 48 holds the lamp pin mounting part 73 and the lamp pin 46 of the insulator 47 against the base body 45, so that the base body It is possible to reliably prevent the lamp pin mounting portion 73 from being displaced or detached with respect to 45, and to reliably prevent the lamp pin 46 from being displaced or detached from the lamp pin attaching portion 73.

  Further, since the insulator 47 includes a cover portion 80 disposed on the protruding portion 53 of the base body 45 so as to face the side portion of the lamp pin 46, the insulating property between the lamp pin 46 and the protruding portion 53 of the base body 45 is provided. Can be secured.

  The insulating portion 75 of the insulator 47 is provided with a closed portion so as to close the upper surface of the insulating portion 75, and this closed portion is interposed between the tip surface 60 of the protruding portion 53 of the base 20 and the lighting circuit 21. You may do it. Thereby, the insulation between the metal base 20 and the lighting circuit 21 can be further improved.

  Further, the lighting circuit board holder 74 may not be provided in the insulator 47. In this case, another component for holding the lighting circuit board 88 may be used.

  Further, instead of the filler 91, an insulating sheet may be used.

  Next, FIGS. 7 to 11 show a second embodiment. The same components as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted.

  In the first embodiment, the lamp pin mounting portion 73, the lighting circuit board holding portion 74, and the insulating portion 75 are configured as one insulator 47. However, in the second embodiment, as shown in FIG. And a pair of insulators 101 having a lamp pin mounting portion 73 and a lighting circuit board holding portion 74, and an insulating member 102 interposed between the inner surface of the base 20 and the lighting circuit 21. .

  Each insulator 101 includes a lamp pin mounting portion 73 having the same configuration as that of the first embodiment, but the configuration of the lighting circuit board holding portion 74 is different. The lighting circuit board holding unit 74 has a pair of holding claws 104 that hold the upper and lower surfaces of the lighting circuit board 88 in between. As shown in FIGS. 7 and 8, the pair of holding claws 104 are formed so as to protrude from the lamp pin mounting portions 73 to the upper surface side and are arranged inside the holding wall 58 of the protruding portion 53 of the base body 45. 90 ° or less inward from each other so that the distal end side of each holding claw 104 is narrower than the proximal end side, and the distance between the distal end sides of the pair of holding claws 104 is narrower than the proximal end side. It is inclined to. Further, claw portions 105 projecting opposite to each other are formed at the tips of the pair of holding claws 104, and the claw portions 105 are expanded toward the opposite side with respect to the holding piece 81 and are close to the holding piece 81. The corner is formed to have an acute angle. The gap dimension between the tips of the pair of holding claws 104 is smaller than the thickness dimension of the lighting circuit board 88.

  The insulating member 102 includes an insulating sheet 107 made of synthetic resin having insulation properties. As shown in FIG. 9, the insulating sheet 107 is formed in a band shape, and has an insertion hole 108 at one end in the longitudinal direction, and is inserted into the insertion hole 108 at the other end in the longitudinal direction so as to be in a retaining state. A locking portion 109 to be stopped is formed. And it can hold | maintain circularly by inserting the latching | locking part 109 in the insertion hole 108. FIG.

  Alternatively, as shown in FIGS. 10 and 11, the insulating sheet 107 is formed in a strip shape, and at both ends in the longitudinal direction of the insulating sheet 107, grooves 110a and 110b are formed on one side in the width direction and the groove 110a. , 110b and key-like protrusions 111a, 111b projecting obliquely from the outer end, and recesses 112a, 112b are formed on the other side in the width direction. These groove parts 110a, 110b, protrusions 111a, 111b and recesses are formed. 112a and 112b are formed symmetrically in the width direction. The corner portions forming the groove portions 110a and 110b and the recess portions 112a and 112b are formed in a curved shape, and the insulating sheet 107 is prevented from tearing from the corner portions. Then, as shown in FIG. 11, by combining the groove portions 110a and 110b at both ends, the projecting portions 111a and 111b can be hooked and locked to the recess portions 112a and 112b, and can be held in an annular shape.

  When the base 20 is assembled in the lamp device 14 in the assembly process, a pair of insulators are formed from both sides of the lighting circuit board 88 so that the edge of the lighting circuit board 88 is press-fitted between the pair of holding claws 104. 101 is attached, and the upper and lower surfaces of the lighting circuit board 88 are sandwiched and held by the pair of holding claws 104.

  At this time, the distal end side of each holding claw 104 is narrower than the proximal end side, and the distance between the distal end sides of the pair of retaining claws 104 is inclined to 90 ° or less toward the inside so that the distance between the proximal end sides becomes narrower. In this way, the pair of holding claws 104 are made flexible, and the pair of holding claws 104 are expanded so as to oppose the insertion direction of the lighting circuit board 88. The lighting circuit board 88 can be easily press-fitted between the claw portions 105 of the claw 104, and after the press-fitting, the lighting circuit board 88 can be securely sandwiched and held between the pair of holding claws 104. In addition, in the direction in which the lighting circuit board 88 drops from between the pair of holding claws 104, the corners protruding at the acute angle of the claw part 105 are caught by the lighting circuit board 88 to prevent the lighting circuit board 88 from falling off. It is possible to reliably prevent the body 101 and the lighting circuit board 88 from being separated, and to improve the assemblability.

  Each lamp pin 46 previously connected to the lighting circuit 21 with an electric wire is attached to the lamp pin mounting portion 73 of each insulator 101 holding the lighting circuit board 88.

  A pair of annular insulating sheets 107 are arranged along the inner peripheral surface of the projecting portion 53 of the base body 45 and the lamp pin 46 is attached to the base body 45 in which the projecting portion 53 is previously filled with the filler 91. The insulator 101 and the lighting circuit 21 are incorporated in the base body 45.

  The lighting circuit board holding part 74 and the lighting circuit board 88 of each insulator 101 incorporated in the base body 45 are arranged inside the protrusion 53 and pressed against the filler 91, and each insulator 101 and the lighting circuit board 88 are pressed. Is fixed to the base body 45 by the filler 91.

  Since the holding piece 81 of each insulator 101 incorporated in the base body 45 is arranged on the inner peripheral surface of the protruding portion 53 via the insulating sheet 107, the position of the holding claw 104 that holds the lighting circuit board 88 in between Thus, the lighting circuit board 88 can be reliably maintained in the protruding portion 53 of the base body 45. Further, since the annular insulating sheet 107 is disposed along the inner peripheral surface of the protruding portion 53 of the base body 45, the metallic base body 45 and the lighting circuit 21 can be reliably insulated by the insulating sheet 107. Can do.

  According to the lamp device 14, by using a pair of insulators 101 integrally having a pair of lamp pin mounting portions 73 for mounting the lamp pins 46 and a lighting circuit board holding portion 74 for holding the lighting circuit board 88, one lamp Since the insulator 101 can be used for two component functions, the number of components can be reduced and simplified.

  Therefore, by using the pair of insulators 101, the pair of lamp pins 46 and the lighting circuit 21 can be incorporated into the metal base body 45, and the productivity can be improved.

  Moreover, by using the insulating sheet 107 in addition to the pair of insulators 101, the pair of lamp pins 46 and the lighting circuit 21 can be incorporated in an insulated state with respect to the metal base body 45.

  The insulating member 102 is not limited to the insulating sheet 107, and may be formed in a cup shape that is disposed along the inner peripheral surface of the protrusion 53 of the base body 45 and the inner side of the front end surface 60.

  In each of the above embodiments, the lamp pin 46 of the lamp device 14 is used for electrical connection and the support of the lamp device 14 to the socket device 13, and the key groove 61 of the lamp device 14 and the key portion 97 of the socket device 13 are provided. It does not have to be. Alternatively, the lamp pin 46 of the lamp device 14 may be used only for electrical connection, and the lamp device 14 may be supported by the socket device 13 only by the key groove portion 61 of the base 20, and in this case, the lamp pin 46 has a large diameter portion. 66 may not be provided.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

11 Lighting equipment
13 Socket device
14 Lamp device
17 substrate
20 base
21 Lighting circuit
34 Light emitter
38 Semiconductor light emitting devices
46 Lamp pin
47 Insulator
73 Lamp pin mounting
74 Lighting circuit board holder
75 insulation
88 Lighting circuit board
89 Lighting circuit components
101 insulator
102 Insulation material

Claims (4)

A light emitting part having a semiconductor light emitting element;
A base with a light emitting part attached on one side;
A metal base attached to the other side of the substrate;
A pair of lamp pins protruding from the base;
A lighting circuit having a lighting circuit board housed in the base and mounted with a lighting circuit component;
A pair of lamp pin mounting portions for mounting the pair of lamp pins, respectively, and an insulator attached to the base having an insulating portion interposed between the inner surface of the base and the lighting circuit;
A lamp device comprising: A light emitting part having a semiconductor light emitting element;
A base with a light emitting part attached on one side;
A metal base attached to the other side of the substrate;
A pair of lamp pins protruding from the base;
A lighting circuit having a lighting circuit board housed in the base and mounted with a lighting circuit component;
A pair of insulators each having a lamp pin attachment portion for attaching the lamp pin and a lighting circuit board holding portion for holding the lighting circuit board, each attached to the base;
A lamp device comprising: The lamp device according to claim 2, further comprising an insulating member interposed between the inner surface of the base and the lighting circuit. A lamp device according to any one of claims 1 to 3;
A socket device for mounting the lamp device;
An illumination device comprising:

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