JP6597970B2 - VEHICLE LIGHTING DEVICE AND VEHICLE LIGHT - Google Patents

Description

  Embodiments described herein relate generally to a vehicle lighting device and a vehicle lamp.

There is a vehicular lighting device including a socket and a light emitting module provided on one end side of the socket and having a light emitting diode (LED).
It is desired that a socket provided in a vehicle lighting device has high heat dissipation of heat generated in the light emitting module and is lightweight.
Therefore, a socket formed from a highly heat conductive resin has been proposed.

Such a socket can be formed by injection molding.
However, since a filler made of aluminum oxide or the like is added to the high thermal conductive resin, the fluidity may be lowered.
For this reason, when a socket containing a high thermal conductive resin is molded by an injection molding method, molding defects such as insufficient filling and sink marks may occur. In this case, if sink occurs at the end of the socket on the side where the light emitting module is provided, there is a possibility that a space is generated between the light emitting module and the socket, the thermal conductivity is lowered, and the heat dissipation of the light emitting module is significantly hindered. is there.
Therefore, it has been desired to develop a technique capable of improving the thermal conductivity between the light emitting module and the socket.

Japanese Patent Laid-Open No. 2015-220034

  The problem to be solved by the present invention is to provide a vehicular lighting device and a vehicular lamp that can improve the thermal conductivity between the light emitting module and the socket.

Vehicle lighting apparatus according to the embodiment includes a disk-shaped flange; provided on one surface of said flange mounting portion and having a first recess that opens to an end face opposite to the flange side; the A bayonet provided on a surface intersecting the end surface of the mounting portion; a light emitting module provided on a bottom surface of the first recess and having a light emitting element; and a surface intersecting the surface where the mounting portion of the flange is provided . And a trace portion which is provided at a position connected to a gate provided in an injection mold , and is at least one of a protrusion, a dent, and a rough surface area.
The flange, the mounting portion, and the bayonet are integrally formed and include a filler made of a resin and an inorganic material.

  According to the embodiment of the present invention, it is possible to provide a vehicular lighting device and a vehicular lamp that can improve the thermal conductivity between the light emitting module and the socket.

1 is a schematic perspective view for illustrating a vehicular illumination device 1 according to the present embodiment. It is the schematic diagram which looked at the illuminating device 1 for vehicles from the A direction in FIG. It is a schematic cross section of the BB apparatus direction of the illuminating device 1 for vehicles in FIG. It is a schematic cross section for illustrating the position of the trace part 201a, 201b, 201c which concerns on a comparative example. It is a schematic cross section for illustrating the positions of the trace portions 200a, 200b, 200c, 200d, and 200e according to the present embodiment. (A)-(d) is the schematic diagram which looked at the socket 10 from the C direction in FIG. It is a schematic cross section for illustrating trace parts 200a, 200b, 200c, 200d, and 200e concerning other embodiments. (A)-(d) is the schematic diagram which looked at the socket 10 from the D direction in FIG. 4 is a schematic cross-sectional view for illustrating a sealing unit 210. FIG. 1 is a schematic partial cross-sectional view for illustrating a vehicular lamp 100. FIG.

  Hereinafter, embodiments will be illustrated with reference to the drawings. In addition, in each drawing, the same code | symbol is attached | subjected to the same component and detailed description is abbreviate | omitted suitably.

(Vehicle lighting device)
The vehicular lighting device 1 according to the present embodiment can be provided, for example, in an automobile or a railway vehicle. Examples of the vehicle lighting device 1 provided in the automobile include a front combination light (for example, a combination of a daytime running lamp (DRL), a position lamp, a turn signal lamp, etc.) or a rear combination. Examples thereof include those used for lights (for example, a combination of a stop lamp, a tail lamp, a turn signal lamp, a back lamp, a fog lamp and the like as appropriate). However, the use of the vehicular lighting device 1 is not limited to these.

FIG. 1 is a schematic perspective view for illustrating a vehicle lighting device 1 according to the present embodiment.
FIG. 2 is a schematic view of the vehicular illumination device 1 as viewed from the direction A in FIG.
FIG. 3 is a schematic cross-sectional view of the vehicular lighting device 1 in FIG. 1 in the BB line direction.
In order to avoid complication, the trace portion 200a is omitted in FIGS. 1 to 3 (see FIG. 5 for the trace portion 200a).

As shown in FIGS. 1, 2, and 3, the vehicular lighting device 1 is provided with a socket 10, a light emitting module 20, and a power feeding unit 30.
The socket 10 includes a mounting portion 11, a bayonet 12, a flange 13, and a heat radiating fin 14.
The mounting portion 11 is provided on the surface of the flange 13 opposite to the side on which the heat dissipating fins 14 are provided. The outer shape of the mounting portion 11 can be a column shape. The outer shape of the mounting portion 11 is, for example, a cylindrical shape. The mounting portion 11 has a recess 11a (corresponding to an example of a first recess) that opens on the end surface opposite to the flange 13 side. The light emitting module 20 is provided on the bottom surface 11a1 of the recess 11a.

  The bayonet 12 is provided on the outer surface 11c of the mounting portion 11 (a surface that intersects the end surface of the mounting portion 11 where the recess 11a is provided). The bayonet 12 protrudes toward the outside of the vehicle lighting device 1. The bayonet 12 faces the flange 13. A plurality of bayonets 12 are provided. The bayonet 12 is used when the vehicle lighting device 1 is mounted on the housing 101 of the vehicle lamp 100. The bayonet 12 is used for twist lock.

  The flange 13 has a plate shape. For example, the flange 13 may have a disk shape. The outer side surface 13 a of the flange 13 is located on the outer side of the vehicle lighting device 1 with respect to the outer side surface 12 b of the bayonet 12.

  The heat radiating fins 14 are provided on the surface of the flange 13 opposite to the side on which the mounting portion 11 is provided. A plurality of heat radiation fins 14 can be provided. The plurality of radiating fins 14 can be provided in parallel to each other. The heat radiating fins 14 may have a flat plate shape.

The socket 10 is provided with a hole 10a for inserting the insulating portion 31 and a hole 10b for inserting the connector 105.
A connector 105 having a seal member 105a is inserted into the hole 10b. Therefore, the cross-sectional shape of the hole 10b is adapted to the cross-sectional shape of the connector 105 having the seal member 105a.

  The heat generated in the light emitting module 20 is mainly transmitted to the heat radiating fins 14 via the mounting portion 11 and the flange 13. The heat transmitted to the radiating fins 14 is mainly released from the radiating fins 14 to the outside.

In this case, the socket 10 is desired to be able to efficiently dissipate heat generated in the light emitting module 20 and to be lightweight.
Therefore, it is preferable that the mounting part 11, the bayonet 12, the flange 13, and the heat radiating fins 14 are formed from a highly thermally conductive resin. High heat conductive resin contains the filler which consists of resin and an inorganic material, for example. The high thermal conductive resin is, for example, a resin such as PET (Polyethylene terephthalate) or nylon mixed with fibers or particles made of aluminum oxide or carbon having high thermal conductivity.

Moreover, it is preferable that the mounting part 11, the bayonet 12, the flange 13, and the heat radiation fin 14 are integrally formed using an injection molding method.
If the socket 10 including the mounting portion 11, the bayonet 12, the flange 13, and the heat radiating fins 14 including the high thermal conductive resin is integrally formed, the heat generated in the light emitting module 20 can be efficiently radiated. Further, the weight of the socket 10 can be reduced.

However, since a filler made of an inorganic material is added to the high thermal conductive resin, the fluidity may be lowered.
For this reason, when the socket 10 containing a high thermal conductive resin is molded by an injection molding method, there is a risk that molding defects such as insufficient filling and sink marks may occur.

FIG. 4 is a schematic cross-sectional view for illustrating the positions of the trace portions 201a, 201b, and 201c according to the comparative example.
The trace portions 201a, 201b, and 201c are provided at positions connected to the gate 200 provided in the injection mold. In FIG. 4, the pair of trace portions 201 a provided on the end surface 11 b of the mounting portion 11, the pair of trace portions 201 b provided on the surface 12 a facing the flange 13 of the bayonet 12, and the end surface 14 a of the radiating fin 14. Although three types of trace portions are provided simultaneously with the provided trace portion 201 c, at least one type of trace portion is used for connection to the gate 200. The gate 200 is an entrance through which the high thermal conductive resin flows into the mold when the socket 10 is molded by an injection molding method.
The socket 10 is provided with a hole 10a for inserting the insulating portion 31 and a hole 10b for inserting the connector 105.
Therefore, as shown in FIG. 4, when the trace portion 201a is provided on the end surface 11b of the mounting portion 11 or when the trace portion 201b is provided on the surface 12a facing the flange 13 of the bayonet 12, the hole 10a or Since the flow of the high thermal conductive resin is hindered by the protruding portion at the position of the hole 10b, there is a possibility that sink marks 11a2 may occur on the bottom surface 11a1 of the recess 11a. If sink 11a2 is generated on the bottom surface 11a1 of the recess 11a, a space is generated between the light emitting module 20 and the socket 10, and there is a possibility that the thermal conductivity is lowered and the heat dissipation of the light emitting module 20 is significantly hindered.

The trace portions 201a, 201b, and 201c are portions connected to the gate 200 provided in the injection mold. Therefore, the trace portions 201a, 201b, and 201c are protrusions, dents, rough surfaces, and the like.
If the trace portion 201 b is provided on the surface 12 a of the bayonet 12, there is a possibility that problems such as being caught when the vehicle lighting device 1 is attached to the housing 101 of the vehicle lamp 100 may occur. In this case, the trace portion 201b can be removed by cutting or the like, but the manufacturing cost increases.

  In addition, in the injection mold, when the gate 200 is provided at a position corresponding to the trace portion 201c provided on the end face 14a of the heat radiating fin 14, the high thermal conductive resin that has flowed into the mold becomes adjacent to the heat radiating fin. It flows in so as to wrap around the position of 14. The heat dissipating fins 14 are thin and many in number, and some highly heat conductive resins have low fluidity. Therefore, molding defects such as insufficient filling and sink marks 14 b may occur in the heat radiating fins 14. If molding defects such as insufficient filling or sink 14b occur in the radiating fin 14, the strength of the radiating fin 14 may be significantly reduced. When the vehicle lighting device 1 is mounted on the housing 101 of the vehicle lamp 100, the operator grips the heat radiation fins 14, so that the heat radiation fins 14 may be damaged if the strength of the heat radiation fins 14 is low.

  Note that if the cross-sectional area of the gate 200 is increased or pressure is maintained, the occurrence of insufficient filling or sink marks can be suppressed. However, since the end surface 11b of the mounting portion 11, the surface 12a facing the flange 13 of the bayonet 12, and the end surface 14a of the radiating fin 14 are small in area, it is difficult to connect the gate 200 having a large cross-sectional area. If the cross-sectional area of the gate 200 cannot be increased, it may be difficult to perform pressure holding.

FIG. 5 is a schematic cross-sectional view for illustrating the positions of the trace portions 200a, 200b, 200c, 200d, and 200e according to the present embodiment.
6A to 6D are schematic views of the socket 10 viewed from the C direction in FIG. 6A to 6D are diagrams for illustrating the position of the trace portion 200d, and therefore, 200a, 200b, 200c, and 200e are omitted.
Further, the trace portions 200a, 200b, 200c, 200d, and 200e are portions connected to the gate 200 provided in the injection mold. Therefore, the trace portions 200a, 200b, 200c, 200d, and 200e are protrusions, dents, and regions with rough surfaces.

In FIG. 5, the trace portion 200 a provided on the outer side surface 13 a of the flange 13 (the surface 13 a intersecting the surface on which the mounting portion 11 of the flange 13 is provided), the outer side surface 11 c of the mounting portion 11 (the concave portion of the mounting portion 11 is illustrated). The trace portions 200b and 200c provided on the surface 11c intersecting the provided end surface), the trace portion 200d provided on the bottom surface 11a1 of the recess 11a, and the outer side surface 12b of the bayonet 12 (on the mounting portion 11 side of the bayonet 12) 5 simultaneously describes five types of trace portions 200e provided on the opposite surface 12b), but the trace portions 200a to 200e according to the present embodiment have at least one type of trace portion connected to the gate 200. Used for.
In this case, as shown in FIGS. 6A to 6D, the trace portion 200d is provided outside the region where the light emitting module 20 (substrate 21) is provided. 6A to 6D exemplify cases where one to four trace portions 200d are provided, the number and arrangement of the trace portions 200d are not particularly limited.
Further, the number and arrangement of the trace portions 200a, 200b, 200c, and 200e are not particularly limited.

  If the positions of the trace portions 200a, 200b, 200c, 200d, and 200e are set in this way, the high thermal conductive resin can be caused to flow into the mold from a position close to the bottom surface 11a1 of the recess 11a. Therefore, it is possible to suppress the sink 11a2 from occurring on the bottom surface 11a1 of the recess 11a. If it is possible to suppress the sink 11a2 from being generated on the bottom surface 11a1 of the recess 11a, it is possible to improve the thermal conductivity between the light emitting module 20 and the socket 10, and thus improve the heat dissipation of the light emitting module 20.

  Moreover, since these surfaces have a large area, it is easy to increase the cross-sectional area of the gate 200 to be connected. Therefore, it is easy to perform pressure holding. As a result, it becomes easy to suppress the occurrence of molding defects such as insufficient filling and sink marks.

  Further, even if the trace portions 200a, 200b, 200c, 200d, and 200e are formed on these surfaces, there is little possibility of getting in the way. In this case, the light emitting module 20 is provided on the bottom surface 11a1 of the recess 11a, but the trace portion 200d may be provided outside the region of the bottom surface 11a1 where the light emitting module 20 is provided.

FIG. 7 is a schematic cross-sectional view for illustrating trace portions 200a, 200b, 200c, 200d, and 200e according to another embodiment.
8A to 8D are schematic views of the socket 10 viewed from the D direction in FIG. 8A to 8D are diagrams for illustrating the position of the trace portion 200d, and therefore, 200a, 200b, 200c, and 200e are omitted.
As shown in FIGS. 7 and 8, when the trace portion 200d is provided in the region where the light emitting module 20 (substrate 21) is provided, a recess 11a3 (corresponding to an example of a second recess) is provided and the bottom surface of the recess 11a3. The trace portion 200d may be provided on the surface. In addition, the recessed part 11a3 is provided in the area | region in which the light emitting module 20 (board | substrate 21) of the bottom face 11a1 of the recessed part 11a is provided. Therefore, it is preferable to make the recess 11a3 as small as possible so as not to hinder the thermal conductivity between the light emitting module 20 (substrate 21) and the socket 10.

  Moreover, as shown in FIG. 7, the recessed part 11a3 is a surface (outside surface 13a) which cross | intersects the surface in which the mounting part 11 of a flange is provided, the surface (outside surface 11c) which cross | intersects the end surface of the mounting part 11, and the recessed part 11a. It can be provided on at least one of the bottom surface 11a1 and the surface (outer surface 12b) opposite to the mounting portion 11 side of the bayonet 12. The trace portions 200a, 200b, 200c, 200d, and 200e can be provided on the bottom surface of the recess 11a3.

  In addition, if the traces 200d are provided on the bottom surface 11a1 of the recess 11a and the bottom surface of the recess 11a3, the high thermal conductive resin can be poured simultaneously into the positions of the plurality of heat dissipation fins 14 in the mold from the direction in which the heat dissipation fins 14 extend. Can do. Therefore, it is possible to suppress the occurrence of molding defects such as insufficient filling and sink marks 14b in the radiating fins 14. As a result, it is possible to suppress the strength of the heat radiating fins 14 from being lowered. Therefore, it is possible to prevent the heat radiating fins 14 from being damaged when the vehicle lighting device 1 is mounted on the housing 101 of the vehicle lamp 100. Can do.

  Further, when the trace portion 200a is provided on the outer side surface 13a of the flange 13, when the trace portions 200b and 200c are provided on the outer side surface 11c of the mounting portion 11, or when the trace portion 200e is provided on the outer side surface 12b of the bayonet 12. Similarly, the concave portion 11a3 may be provided, and the trace portions 200a, 200b, 200c, and 200e may be provided on the bottom surface of the concave portion 11a3. The configuration in which the trace portions 200a, 200b, 200c, 200d, and 200 are accommodated in the recess 11a3 causes problems such as being caught when the vehicle lighting device 1 is mounted on the housing 101 of the vehicle lamp 100. Can be prevented.

  Note that the number, spacing, arrangement, and the like of the trace portions 200a, 200b, 200c, 200d, and 200e (connected gates 200) can be appropriately determined by experiments, simulations, and the like.

FIG. 9 is a schematic cross-sectional view for illustrating the sealing portion 210.
As illustrated in FIG. 8, when the trace portion 200d is provided in the region where the light emitting module 20 (substrate 21) is provided, the recess portion 11a3 is provided and the trace portion 200d is provided on the bottom surface of the recess portion 11a3.
In this case, as shown in FIG. 9, it is preferable to provide the sealing part 210 inside the recessed part 11a3. The sealing unit 210 can be formed from, for example, a resin having high thermal conductivity. The resin having a high thermal conductivity can include, for example, a filler containing a resin and an inorganic material. The sealing portion 210 can be formed, for example, by filling the inside of the recess 11a3 with a resin dissolved with a solvent or the like. The filling of the resin can be performed using, for example, a liquid dispensing apparatus such as a dispenser.
If the sealing part 210 is provided, the heat generated in the light emitting module 20 can be easily transmitted to the socket 10. Moreover, if the light emitting module 20 (board | substrate 21) is mounted before the resin with which the inside of the recessed part 11a3 was hardened, the light emitting module 20 (board | substrate 21) and the socket 10 may be joined by resin hardening. it can.

The light emitting module 20 includes a substrate 21, a light emitting element 22, a control element 23, and a control element 24.
The substrate 21 is provided on the bottom surface 11a1 of the recess 11a. The substrate 21 has a flat plate shape. A wiring pattern is provided on the surface of the substrate 21.
The material and structure of the substrate 21 are not particularly limited. For example, the substrate 21 can be formed of an inorganic material such as ceramics (for example, aluminum oxide or aluminum nitride) or an organic material such as paper phenol or glass epoxy. Moreover, the board | substrate 21 may coat | cover the surface of a metal plate with the insulating material. When the surface of the metal plate is covered with an insulating material, the insulating material may be made of an organic material or an inorganic material.

When the light emitting element 22 generates a large amount of heat, it is preferable to form the substrate 21 using a material having high thermal conductivity from the viewpoint of heat dissipation. Examples of the material having high thermal conductivity include ceramics such as aluminum oxide and aluminum nitride, high thermal conductive resin, and a metal plate whose surface is covered with an insulating material.
Further, the substrate 21 may be a single layer or a multilayer.

  The light emitting element 22 is provided on the substrate 21. The light emitting element 22 is electrically connected to a wiring pattern provided on the surface of the substrate 21. The light emitting element 22 may be, for example, a light emitting diode, an organic light emitting diode, a laser diode, or the like.

The form of the light emitting element 22 is not particularly limited.
The light emitting element 22 may be a surface mount type light emitting element such as a PLCC (Plastic Leaded Chip Carrier) type.
The light emitting element 22 may be a light emitting element having a lead wire such as a shell type.

  Further, the light emitting element 22 may be mounted by COB (Chip On Board). In the case of the light emitting element 22 mounted by COB, a chip-like light emitting element 22, a wiring that electrically connects the light emitting element 22 and the wiring pattern, a frame-shaped member that surrounds the light emitting element 22 and the wiring, A sealing portion or the like provided inside the frame-shaped member can be provided on the substrate 21.

In this case, the sealing portion can include a phosphor. The phosphor may be, for example, a YAG phosphor (yttrium / aluminum / garnet phosphor).
For example, when the light emitting element 22 is a blue light emitting diode and the phosphor is a YAG phosphor, the YAG phosphor is excited by the blue light emitted from the light emitting element 22, and yellow fluorescence is emitted from the YAG phosphor. Radiated. Then, the blue light and the yellow light are mixed, whereby white light is emitted from the vehicle lighting device 1. In addition, the kind of fluorescent substance and the kind of light emitting element 22 are not necessarily limited to what was illustrated. The type of the phosphor and the type of the light emitting element 22 can be appropriately changed so that a desired emission color can be obtained according to the application of the vehicular lighting device 1 or the like.

Note that the light-emitting element 22 illustrated in FIGS. 1 and 3 is a surface-mounted light-emitting element.
The upper surface, which is the light emission surface of the light emitting element 22, is directed to the front side of the vehicle lighting device 1, and mainly emits light toward the front side of the vehicle lighting device 1.
The number, size, arrangement, and the like of the light emitting elements 22 are not limited to those illustrated, and can be changed as appropriate according to the size, usage, and the like of the vehicular lighting device 1.

  The control element 23 is provided on the substrate 21. The control element 23 is electrically connected to a wiring pattern provided on the surface of the substrate 21. For example, the control element 23 can control a current flowing through the light emitting element 22.

  Since the forward voltage characteristics of the light emitting element 22 vary, when the applied voltage between the anode terminal and the ground terminal is constant, the brightness (light flux, luminance, luminous intensity, illuminance) of the light emitting element 22 is increased. Variation occurs. Therefore, the value of the current flowing through the light emitting element 22 is set within the predetermined range by the control element 23 so that the brightness of the light emitting element 22 falls within the predetermined range.

The control element 23 can be a resistor, for example. The control element 23 may be, for example, a surface-mounted resistor, a resistor having a lead wire (metal oxide film resistor), a film resistor formed using a screen printing method, or the like.
The control element 23 illustrated in FIGS. 1 and 3 is a surface mount type resistor.

The control element 24 is provided on the substrate 21. The control element 24 is electrically connected to a wiring pattern provided on the surface of the substrate 21. The control element 24 is provided to prevent reverse voltage from being applied to the light emitting element 22 and to prevent pulse noise from the reverse direction from being applied to the light emitting element 22.
The control element 24 can be a diode, for example. The control element 24 may be, for example, a surface mount type diode or a diode having a lead wire. The control element 24 illustrated in FIG. 1 is a surface mount type diode.

  In addition, a pull-down resistor can be provided for detecting disconnection of the light emitting element 22 and preventing erroneous lighting. In addition, a covering portion that covers a wiring pattern, a film-like resistor, or the like can be provided. A coating | coated part shall contain a glass material, for example.

The power feeding unit 30 includes an insulating unit 31 and a power feeding terminal 32.
The insulating part 31 is provided inside the hole 10a. The insulating part 31 can be press-fitted into the hole 10a, or can be adhered to the inside of the hole 10a. Further, the insulating portion 31 can be formed integrally with the socket 10.

  The insulating part 31 is made of an insulating material. In this case, considering that the heat generated in the light emitting module 20 is transmitted to the heat radiating fins 14, the insulating portion 31 is preferably formed from a material having insulating properties and high thermal conductivity. The material having insulating properties and high thermal conductivity can be, for example, ceramics (for example, aluminum oxide or aluminum nitride), high thermal conductive resin, or the like.

  Moreover, in the case of the illuminating device 1 for vehicles provided in a motor vehicle, the temperature of use environment will be -40 degreeC-85 degreeC. Therefore, it is preferable that the thermal expansion coefficient of the material of the insulating portion 31 is as close as possible to the thermal expansion coefficient of the material of the socket 10. In this way, the thermal stress generated between the insulating part 31 and the socket 10 can be reduced. For example, the material of the insulating portion 31 can be a high thermal conductive resin included in the socket 10 or a resin included in the high thermal conductive resin.

  A plurality of power supply terminals 32 are provided. The plurality of power supply terminals 32 can be provided side by side in a predetermined direction. The plurality of power supply terminals 32 are provided inside the insulating portion 31. The plurality of power supply terminals 32 extend inside the insulating portion 21. One end of the plurality of power supply terminals 32 is electrically connected to the light emitting module 20. The other ends of the plurality of power supply terminals 32 protrude from the insulating portion 31. Note that the number, shape, and the like of the power supply terminals 32 are not limited to those illustrated, and can be changed as appropriate.

(Vehicle lamp)
Next, the vehicle lamp 100 will be illustrated.
In the following, a case where the vehicle lamp 100 is a front combination light provided in an automobile will be described as an example. However, the vehicular lamp 100 is not limited to a front combination light provided in an automobile. The vehicular lamp 100 may be a vehicular lamp provided in an automobile, a railway vehicle, or the like.

FIG. 10 is a schematic partial cross-sectional view for illustrating the vehicular lamp 100.
As shown in FIG. 10, the vehicular lamp 100 is provided with a vehicular lighting device 1, a casing 101, a cover 102, an optical element portion 103, a seal member 104, and a connector 105.

  The housing 101 holds the mounting unit 11. The casing 101 has a box shape with one end opened. The housing 101 can be formed from, for example, a resin that does not transmit light. A mounting hole 101 a into which a portion of the mounting portion 11 provided with the bayonet 12 is inserted is provided on the bottom surface of the housing 101. On the periphery of the mounting hole 101a, a recess is provided in which the bayonet 12 provided in the mounting portion 11 is inserted. In addition, although the case where the attachment hole 101a is directly provided in the housing | casing 101 was illustrated, the attachment member which has the attachment hole 101a may be provided in the housing | casing 101. FIG.

  When the vehicle illumination device 1 is attached to the vehicle lamp 100, the portion of the mounting portion 11 provided with the bayonet 12 is inserted into the attachment hole 101a, and the vehicle illumination device 1 is rotated. Then, the bayonet 12 is hold | maintained at the recessed part provided in the periphery of the attachment hole 101a. Such an attachment method is called a twist lock.

  The cover 102 is provided so as to close the opening of the housing 101. The cover 102 can be formed from a light-transmitting resin or the like. The cover 102 may have a function such as a lens.

The light emitted from the vehicular illumination device 1 enters the optical element unit 103. The optical element unit 103 performs reflection, diffusion, light guide, light collection, and formation of a predetermined light distribution pattern of the light emitted from the vehicular lighting device 1.
For example, the optical element unit 103 illustrated in FIG. 10 is a reflector. In this case, the optical element unit 103 reflects the light emitted from the vehicle lighting device 1 so that a predetermined light distribution pattern is formed.

  The seal member 104 is provided between the flange 13 and the housing 101. The seal member 104 may have an annular shape. The seal member 104 can be formed from an elastic material such as rubber or silicone resin.

  When the vehicular lighting device 1 is attached to the vehicular lamp 100, the seal member 104 is sandwiched between the flange 13 and the housing 101. Therefore, the internal space of the housing 101 is sealed by the seal member 104. Further, the bayonet 12 is pressed against the housing 101 by the elastic force of the seal member 104. Therefore, it is possible to suppress the vehicle lighting device 1 from being detached from the housing 101.

The connector 105 is fitted to the ends of the plurality of power supply terminals 32 exposed inside the hole 10b. The connector 105 is electrically connected to a power source (not shown). Therefore, by fitting the connector 105 to the end of the power supply terminal 32, the power source (not shown) and the light emitting element 22 are electrically connected.
The connector 105 has a stepped portion. And the sealing member 105a is attached to the level | step-difference part (refer FIG. 3). The seal member 105a is provided to prevent water from entering the hole 10b. When the connector 105 having the sealing member 105a is inserted into the hole 10b, the hole 10b is hermetically sealed.

  The seal member 105a can have an annular shape. The seal member 105a can be formed from an elastic material such as rubber or silicone resin. The connector 105 can be joined to the element on the socket 10 side using, for example, an adhesive.

  As mentioned above, although several embodiment of this invention was illustrated, these embodiment is shown as an example and is not intending limiting the range of invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, changes, and the like can be made without departing from the spirit 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 equivalents thereof. Further, the above-described embodiments can be implemented in combination with each other.

  DESCRIPTION OF SYMBOLS 1 Vehicle lighting device, 10 socket, 11 mounting part, 11a recessed part, 11a1 bottom face, 11a3 recessed part, 11c outer side surface, 12 bayonet, 12b outer side surface, 13 flange, 13a outer side surface, 14 heat radiation fin, 20 light emitting module, 30 power supply Part, 100 vehicle lamp, 200 gate, 200a-200e trace part, 210 sealing part

Claims (4)

A disc-shaped flange;
A mounting portion provided on one surface of the flange and having a first recess opening on an end surface opposite to the flange side;
A bayonet provided on a surface intersecting the end surface of the mounting portion;
A light emitting module provided on a bottom surface of the first recess and having a light emitting element;
At least one of a projection, a dent, and a rough surface provided at a position connected to a gate provided on an injection mold on a surface intersecting a surface provided with the mounting portion of the flange And a trace that is;
Equipped with,
The said lighting device , the said mounting part, and the said bayonet are the vehicle illuminating devices which are integrally formed and contain the filler which consists of resin and an inorganic material . A second recess is provided on a surface intersecting a surface on which the mounting portion of the flange is provided,
The vehicle illumination device according to claim 1, wherein the trace portion is provided on a bottom surface of the second recess.   The vehicle lighting device according to claim 2, further comprising a sealing portion that is provided inside the second recess and includes a filler made of a resin and an inorganic material. The vehicular lighting device according to any one of claims 1 to 3 ;
A housing for holding a mounting portion provided in the vehicle lighting device;
A vehicular lamp provided with

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