CN214275585U

CN214275585U - Vehicle lamp

Info

Publication number: CN214275585U
Application number: CN202120109787.0U
Authority: CN
Inventors: 土屋贵义
Original assignee: Koito Manufacturing Co Ltd
Current assignee: Koito Manufacturing Co Ltd
Priority date: 2020-01-22
Filing date: 2021-01-15
Publication date: 2021-09-24
Anticipated expiration: 2031-01-15
Also published as: CN113154333A; JP2021118042A; JP7360668B2; CN113154333B

Abstract

The utility model provides a vehicle lamp realizes installing light source substrate and control substrate in the improvement of the operation nature in the installation of lamp housing through hot riveting. The vehicle lamp includes: a lamp housing having a mounting base; a light source substrate on which a light source is mounted; and a control substrate for controlling the light source, wherein the lamp housing is provided with a first mounting part and a second mounting part which protrude from the mounting base in opposite directions and are used for mounting the light source substrate and the control substrate by hot riveting respectively, and the first mounting part and the second mounting part are positioned on the same straight line. In this way, since the caulking jig can be simultaneously pressed from opposite directions to the first mounting portion and the second mounting portion which protrude in opposite directions from the mounting base and are positioned on the same straight line, respectively, the light source substrate and the control substrate can be mounted on the mounting base, and therefore, workability in a mounting process of mounting the light source substrate and the control substrate to the lamp housing by thermal caulking can be improved.

Description

Vehicle lamp

Technical Field

The utility model relates to a through the heat staking and install light source substrate and control substrate in the vehicle lamp relevant technical field of utensil of lamp housing.

Background

Some vehicle lamps, such as a high-mount stop lamp, are configured as follows: a light source substrate on which a light source is mounted and a control substrate for performing on-off control of the light source are attached to a lamp housing, and light emitted from the light source is irradiated to the outside through a cover (cover lens) by the on-off control of the control substrate (for example, see patent document 1). In patent document 1, a light source substrate is provided as a light emitting element mounting portion, and a control substrate is provided as a control circuit portion.

Some of such vehicle lamps are configured such that the light source board and the control board are mounted to a mounting portion of the lamp housing by heat caulking. In this case, insertion holes are formed in the light source substrate and the control substrate, and the fitting portion is provided with a caulking pin, and the caulking pin is heated and pressed by a caulking jig in a state where the caulking pin is inserted into the insertion holes, and the tip portion of the caulking pin is deformed, thereby fitting the light source substrate and the control substrate to the fitting portion.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2019-153494

SUMMERY OF THE UTILITY MODEL

Problem to be solved by the utility model

However, in the mounting step of mounting the light source substrate and the control substrate to the mounting portion of the lamp housing by thermal caulking, the light source substrate and the control substrate are usually mounted to the mounting portion by caulking jigs at a plurality of positions, respectively, so that the number of mounting positions increases, and accordingly, the number of caulking works increases, and the work in the mounting step takes time, and there is a possibility that the workability is deteriorated.

Therefore, an object of the present invention is to improve workability in a process of mounting a light source substrate and a control substrate to a lamp housing by thermal caulking.

Means for solving the problems

First, a vehicle lamp according to the present invention includes: a lamp housing having a mounting base; a light source substrate on which a light source is mounted; and a control board for controlling the light source to be turned on and off, wherein the lamp housing is provided with a first mounting part and a second mounting part which protrude from the mounting base in opposite directions and on which the light source board and the control board are mounted by thermal riveting, respectively, and the first mounting part and the second mounting part are positioned on the same straight line.

Thus, the caulking jig can be simultaneously pressed from opposite directions against the first mounting portion and the second mounting portion which protrude in opposite directions from the mounting base and are positioned on the same line, and the light source board and the control board can be mounted on the first mounting portion and the second mounting portion, respectively.

Second, it is preferable that the first mounting portion has a first base projection continuous with the mounting base and a first caulking pin projecting from a front end surface of the first base projection, the second mounting portion has a second base projection continuous with the mounting base and a second caulking pin projecting from a front end surface of the second base projection, the first mounting portion is provided with a first reinforcing rib projecting from an outer peripheral surface of the first base projection, and the second mounting portion is provided with a second reinforcing rib projecting from an outer peripheral surface of the second base projection.

Accordingly, since the strength of the first pedestal projection and the second pedestal projection is increased by the first reinforcing rib and the second reinforcing rib, respectively, the first attachment portion and the second attachment portion are less likely to deform when the caulking jig is pressed against the first caulking pin and the second caulking pin, respectively, and the caulking is performed.

Third, it is preferable that the lamp housing is formed of a resin material, a plurality of the first reinforcing ribs and the second reinforcing ribs are separately provided in the circumferential direction, respectively, and the positions of the first reinforcing ribs and the positions of the second reinforcing ribs in the circumferential direction are set to be different positions.

Fourth, preferably, one end of each of the first and second reinforcing ribs is continuous with the mounting base.

Fifth, it is preferable that the position of the first reinforcing rib in the circumferential direction and the position of the second reinforcing rib in the circumferential direction are staggered by 45 degrees.

This can suppress the occurrence of sink marks on the mounting base during molding of the lamp housing.

Sixth, preferably, the vehicular lamp is provided with: a first heat sink plate having a first insertion hole through which the first caulking pin is inserted and attached to the first attachment portion in a state of being in contact with the light source substrate; and a second heat dissipation plate having a second insertion hole through which the second caulking pin is inserted and mounted on the second mounting portion in a state of being in contact with the control board.

Thus, when the caulking jig is pressed against the first caulking pin and the first caulking pin is heat-caulked, the first heat sink is attached to the first attachment portion in addition to the light source substrate, and when the caulking jig is pressed against the second caulking pin and the second caulking pin is heat-caulked, the second heat sink is attached to the second attachment portion in addition to the control substrate.

Seventh, the first heat dissipation plate and the second heat dissipation plate are preferably located on opposite sides with the mounting base interposed therebetween.

Eighth, it is preferable that the first heat sink and the second heat sink be formed by bending a metal material having high heat dissipation properties into a predetermined shape, and include a horizontally long arrangement surface portion, an upper surface portion bent from an upper edge of the arrangement surface portion, and a lower surface portion bent from a lower edge of the arrangement surface portion.

Thus, when the light source is driven by the lighting and extinguishing control of the control board, the heat released from the first heat sink and the second heat sink is separated by the mounting base, and the driving states of the light source and the control board are less likely to be affected by each other.

Effect of the utility model

According to the utility model discloses, can press the riveting anchor clamps simultaneously and install light source base plate and control substrate in the mounting base from opposite direction respectively to the first installation department that protrudes to opposite direction and be located collinear and second installation department, therefore the operating time among the installation procedure shortens, can realize installing light source base plate and control substrate through the improvement of the operation nature in the installation procedure of lamp housing through hot riveting.

Drawings

Fig. 1 is a view showing an embodiment of a vehicle lamp according to the present invention together with fig. 2 to 6, and this view is a perspective view of the vehicle lamp.

Fig. 2 is an exploded perspective view of the vehicle lamp.

Fig. 3 is a perspective view of the vehicle lamp shown with a part broken away.

Fig. 4 is a perspective view showing a case of the lamp housing.

Fig. 5 is a horizontal cross-sectional view showing a state where the light source substrate, the control substrate, and the like are mounted on the lamp housing.

Fig. 6 is a vertical cross-sectional view showing a state where the light source substrate, the control substrate, and the like are mounted on the lamp housing.

Description of the reference numerals

1: a vehicular lamp; 2: a lamp housing; 8: mounting a base; 11: a first mounting portion; 12: a second mounting portion; 13: a first base projection; 14: a first reinforcing rib; 15: a first rivet pin; 16: a second base projection; 17: a second reinforcing rib; 18: a second riveting pin; 25: a first heat dissipation plate; 26 a: a first insertion hole; 29: a second heat dissipation plate; 30 a: a second insertion hole; 34: a light source substrate; 35: a control substrate; 37: a light source.

Detailed Description

Hereinafter, a mode for implementing the vehicle lamp according to the present invention will be described with reference to the drawings.

The following embodiments are embodiments in which the vehicle lamp of the present invention is applied to a high mounted stop lamp as a vehicle lamp for irradiating light rearward. In addition, the present invention can be widely applied to various vehicle lamps other than the high-mount stop lamp.

In the following description, the front-back, up-down, left-right direction is shown with the direction of light irradiation to the outside being the rear direction. However, the front, rear, upper, lower, left and right directions shown below are for convenience of explanation, and the practice of the present invention is not limited to these directions.

The vehicle lamp 1 is mounted and arranged at a center portion in the left-right direction of the vehicle body, for example. The vehicle lamp 1 includes a lamp housing 2 and a cover lens 3 each formed of a resin material, and a lamp housing 4 (see fig. 1) is configured by the lamp housing 2 and the cover lens 3.

The lamp housing 2 is formed by coupling a case 5 and a cover 6 (see fig. 1 to 3).

The case 5 includes a vertically-facing and laterally-long bottom base 7, a laterally-long mounting base 8 projecting upward from a front end of the bottom base 7, and

side surface portions

9, 9 projecting upward from both left and right ends of the bottom base 7 (see fig. 2 to 4). The front end of one side surface 9 is continuous with one end of the mounting base 8 in the left-right direction. A screwing portion 8a having an upper opening is provided at a substantially central portion in the left-right direction of the mounting base 8. The side surface portion 9 is provided with

engaging projections

9a and 9a on the outer surface side.

A space on the rear side of the mounting base 8 in the case 5 is formed as a first arrangement space 5a, and a space on the front side of the mounting base 8 in the case 5 is formed as a second arrangement space 5b (see fig. 5 and 6).

The case 5 is provided with a partition surface portion 10 continuous with the other end portion of the mounting base 8 in the left-right direction, and the partition surface portion 10 is positioned to face the other side surface portion 9 in the left-right direction (see fig. 2 to 4). Therefore, a space is formed between the partition surface portion 10 and the other side surface portion 9, and this space is formed as the third arrangement space 5 c.

In the case 5, for example, three

first mounting portions

11, 11 and three second mounting

portions

12, 12 are provided separately in the left-right direction. The number of the first mounting portions 11 and the second mounting portions 12 is arbitrary, and at least two of them are preferably provided.

The first mounting portion 11 protrudes rearward from the mounting base 8 (see fig. 4 to 6). The first attachment portion 11 is composed of a shaft-like first base projection 13 continuous with the rear surface of the attachment base 8, first reinforcing ribs 14, … … projecting from the outer peripheral surface of the first base projection 13, and a first caulking pin 15 projecting rearward from the front end surface of the first base projection 13. In fig. 5 and 6, for ease of understanding, the boundary between the first base projection 13 and the first reinforcing rib 14 or the boundary between the first mounting portion 11 and the mounting base 8 is shown by a dashed-dotted line as a virtual line. The first reinforcing ribs 14, … … project radially from the outer peripheral surface of the first base projection 13 and are located at positions spaced apart at equal intervals in the circumferential direction. The front ends of the first reinforcing ribs 14, … … are continuous with the rear surface of the mounting base 8.

The second mounting portion 12 projects forward from the mounting base 8. The second attachment portion 12 is composed of a shaft-like second base projection 16 continuous with the front surface of the attachment base 8, second reinforcing ribs 17, … … projecting from the outer peripheral surface of the second base projection 16, and a second caulking pin 18 projecting forward from the front end surface of the second base projection 16. In fig. 5 and 6, for the sake of easy understanding, the boundary between the second base projection 16 and the second reinforcing rib 17 or the boundary between the second mounting portion 12 and the mounting base 8 is shown by a dashed-dotted line as a virtual line. The second reinforcing ribs 17, … … protrude radially from the outer peripheral surface of the second base projection 16 and are located at positions separated at equal intervals in the circumferential direction. The rear ends of the second reinforcing ribs 17, … … are continuous with the front surface of the mounting base 8.

The first reinforcing ribs 14, … … and the second reinforcing ribs 17, … … are provided, for example, four each. However, the number of the first reinforcing ribs 14 and the second reinforcing ribs 17 is arbitrary, respectively.

The first mounting portion 11 and the second mounting portion 12 are located at diametrically opposite positions across the mounting base 8 and are located on the same line. In particular the first base projection 13 and the second base projection 16 are located on the same axis.

On the other hand, in the first and

second mount portions

11, 12, the positions of the first reinforcing ribs 14, … … in the circumferential direction and the positions of the second reinforcing ribs 17, … … in the circumferential direction are different positions. The positions of the first reinforcing ribs 14, … … in the circumferential direction and the positions of the second reinforcing ribs 17, … … in the circumferential direction are staggered by, for example, 45 degrees. However, the offset angle between the position of the first reinforcing ribs 14, … … in the circumferential direction and the position of the second reinforcing ribs 17, … … in the circumferential direction is not limited to 45 degrees, but is arbitrary.

Locking

pieces

19, 19 are provided in case 5 so as to be separated in the left-right direction (see fig. 4). The locking piece 19 protrudes forward from the bottom surface base 7, is elastically deformable in a substantially vertical direction with respect to the bottom surface base 7, and has a locking claw 19a at a distal end portion.

The cover 6 includes a cover base 20 that faces in the vertical direction and is laterally long, a front base 21 that protrudes downward from a front end portion of the cover base 20, and

side bases

22 and 22 that protrude downward from both left and right end portions of the cover base 20 (see fig. 2 and 3). The front end portions of the side bases 22 and 22 are continuous with the left and right end portions of the cover base 20, respectively.

In the cover base 20, a screw insertion hole 20a is formed in a central portion in the left-right direction, and heat radiation holes 20b, and … … are formed in a front half portion so as to be separated in the left-right direction.

The front base 21 has locking

holes

21a, 21a formed therein so as to be separated in the left-right direction. An insertion hole 21b is formed in the center portion of the front base 21 in the left-right direction.

The cover lens 3 includes a light-transmitting portion 23 formed in a horizontally long substantially rectangular shape, and

coupling surface portions

24, 24 projecting forward from both left and right end portions of the light-transmitting portion 23, respectively. The light transmitting portion 23 is formed with, for example, lens steps 23a, … … having a diffusing function. The coupling surface portion 24 has an engagement hole 24 a. The

coupling surface portions

24 and 24 are elastically deformable in a substantially right-left direction with respect to the light transmission portion 23.

Inside the lamp housing 4, the first heat sink 25 is disposed in the first disposition space 5 a. The first heat sink 25 is formed by bending a metal material having high heat dissipation properties in a predetermined shape, and includes a laterally long arrangement surface portion 26 facing in the front-rear direction, upper surface portions 27, … … bent forward from an upper edge of the arrangement surface portion 26, and lower surface portions 28, … … bent forward from a lower edge of the arrangement surface portion 26. The upper surface portions 27, … … and the lower surface portions 28, … … are disposed to face each other vertically.

First insertion holes

26a, and 26a are formed in the arrangement surface portion 26 so as to be separated in the left-right direction.

A second heat sink 29 is disposed in the second disposition space 5b inside the lamp housing 4. The second heat sink 29 is formed by bending a metal material having high heat dissipation properties in a predetermined shape, and includes a laterally long arrangement surface portion 30 facing in the front-rear direction,

upper surface portions

31, 31 bent rearward from an upper edge of the arrangement surface portion 30, and

lower surface portions

32, 32 bent rearward from a lower edge of the arrangement surface portion 30. The

upper surface portions

31, 31 and the

lower surface portions

32, 32 are disposed to face each other in the vertical direction.

Second insertion holes

30a, 30a are formed in the arrangement surface portion 30 so as to be separated in the left-right direction.

The wiring board 33 is disposed inside the lamp housing 4. The wiring board 33 includes a light source substrate 34, a control substrate 35, and a connection substrate 36, and the light source substrate 34 and the control substrate 35 are connected by the connection substrate 36. The wiring board 33 is, for example, a flexible printed wiring board, and the light source substrate 34, the control substrate 35, and the connection substrate 36 are provided as respective parts of the flexible printed wiring board. The light source substrate 34 and the control substrate 35 are formed in a substantially rectangular shape having substantially the same size and a lateral length, and one end portions in the longitudinal direction are connected to each other by a connection substrate 36.

First mounting

holes

34a, and 34a are formed in the light source substrate 34 so as to be separated in the left-right direction. The light sources 37, … … are mounted on the rear surface of the light source substrate 34 so as to be separated in the left-right direction. As the Light source 37, for example, a Light Emitting Diode (LED) is used.

Second mounting

holes

35a, 35a are formed in the control board 35 so as to be separated in the left-right direction. A plurality of electronic components, not shown, are mounted on the front surface of the control board 35 so as to be separated in the left-right direction. A connector 38 for power supply is connected to the front surface of the control board 35.

Hereinafter, the assembly procedure of the vehicle lamp 1 configured as described above will be described.

First, the first caulking pins 15, 15 of the first mounting

portions

11, 11 of the case 5 are inserted through the

first insertion holes

26a, 26a of the first heat sink 25, respectively, and the second caulking pins 18, 18 of the second mounting

portions

12, 12 of the case 5 are inserted through the

second insertion holes

30a, 30a of the second heat sink 29, respectively, so that the first heat sink 25 and the second heat sink 29 are supported by the first mounting

portions

11, 11 and the second mounting portions 12, respectively.

Next, the first caulking pins 15, 15 of the first mounting

portions

11, 11 are inserted into the first mounting

holes

34a, 34a of the light source substrate 34, respectively, and the second caulking pins 18, 18 of the second mounting

portions

12, 12 are inserted into the second mounting

holes

35a, 35a of the control substrate 35, respectively, thereby supporting the light source substrate 34 and the control substrate 35 on the first mounting

portions

11, 11 and the second mounting portions 12, respectively.

The light source substrate 34 may be bonded to the placement surface portion 26 of the first heat sink 25 with an adhesive having thermal conductivity, and the control substrate 35 may be bonded to the placement surface portion 30 of the second heat sink 29 with an adhesive having thermal conductivity. In this case, the first caulking pins 15, 15 are inserted through the

first insertion holes

26a, 26a and the first mounting holes 34a, respectively, and the second caulking pins 18, 18 are inserted through the

second insertion holes

30a, 30a and the second mounting holes 35a, respectively, so that the first heat sink 25 and the light source substrate 34 are supported by the first mounting portions 11, and the second heat sink 29 and the control substrate 35 are supported by the second mounting

portions

12, 12.

By bonding the light source substrate 34 and the control substrate 35 to the first heat sink 25 and the second heat sink 29 in advance in this manner, the light source substrate 34 and the first heat sink 25 can be simultaneously supported by the first mounting portions 11, and the control substrate 35 and the second heat sink 29 can be simultaneously supported by the second mounting

portions

12, and 12. Therefore, the work time and the number of work steps in the assembly work of the vehicle lamp 1 can be reduced.

In a state where the first heat sink 25 and the light source substrate 34 are supported by the first mounting portions 11, and the second heat sink 29 and the control substrate 35 are supported by the second mounting

portions

12, and 12, the connection substrate 36 is inserted and arranged in the third arrangement space 5c formed between the partition surface portion 10 and the other side surface portion 9.

The hot riveting is performed by the first and second

riveting jigs

50 and 60. The first caulking pin 15 of the first mounting portion 11 is heated and pressed by the first caulking jig 50, and the tip portion of the first caulking pin 15 is deformed, thereby mounting the first heat dissipation plate 25 and the light source substrate 34 to the first mounting portion 11. The second caulking jig 60 heats and presses the second caulking pin 18 of the second mounting portion 12 to deform the distal end portion of the second caulking pin 18, thereby mounting the second heat sink 29 and the control board 35 to the second mounting portion 12.

At this time, although the first caulking pin 15 is pressurized by the first caulking jig 50 and the second caulking pin 18 is pressurized by the second caulking jig 60, since the first mounting portion 11 and the second mounting portion 12 are positioned on the same straight line, the second caulking jig 60 functions as a receiving jig for the pressurization of the first caulking jig 50 and the first caulking jig 50 functions as a receiving jig for the pressurization of the second caulking jig 60 by using the first caulking jig 50 and the second caulking jig 60 at the same time. Accordingly, the first caulking pin 15 and the second caulking pin 18 can be respectively applied with appropriate pressure by the first caulking jig 50 and the second caulking jig 60, and the heat caulking can be performed without using a dedicated receiving jig.

In a state where the first heat sink 25 and the light source substrate 34 are mounted on the first mounting

portions

11, 11 and the second heat sink 29 and the control substrate 35 are mounted on the second mounting portions 12, the connector 38 connected to the control substrate 35 is located at a position corresponding to the insertion hole 21b of the front base 21. The first heat sink 25 and the light source substrate 34 are disposed in the first disposition space 5a, the second heat sink 29 and the control substrate 35 are disposed in the second disposition space 5b, and the first heat sink 25, the light source substrate 34, the second heat sink 29 and the control substrate 35 are located on the opposite side with respect to the mounting base 8.

Then, the locking

claws

19a and 19a of the locking

pieces

19 and 19 of the case 5 are respectively locked to the opening edges of the locking

holes

21a and 21a of the cover 6, and the case 5 and the cover 6 are coupled to each other, thereby constituting the lamp housing 2. The attachment screws 70 are inserted through the screw insertion holes 20a of the cover base 20 and screwed into the screwing portions 8a of the attachment base 8, thereby fixing the case 5 and the cover 6 (see fig. 1).

Then, the engaging

projections

9a and 9a provided on the

side surface portions

9 and 9 of the case 5 are engaged with the opening edges of the engaging

holes

24a and 24a formed in the

coupling surface portions

24 and 24 of the cover lens 3, respectively, so that the cover lens 3 is coupled to the lamp housing 2, and the vehicle lamp 1 is assembled.

In the vehicle lamp 1, before the case 5 and the cover 6 are coupled to each other, the cover lens 3 may be first coupled to the case 5, and then the case 5 and the cover 6 may be coupled to each other to complete the assembly of the vehicle lamp 1.

In a state where the vehicle lamp 1 is assembled and the vehicle lamp 1 is mounted on the vehicle body as described above, the power cable is connected to the connector 38 through the insertion hole 21b of the front base 21. When a drive current is supplied to the wiring board 33 from a power supply circuit not shown via a power supply cable and the connector 38, light can be emitted from the light sources 37, and … ….

When the light sources 37, … … are turned on/off by the control board 35, the emitted light passes through the cover lens 3 and is irradiated rearward when the light is emitted from the light sources 37, … …. At this time, light is diffused by the lens steps 23a, and … … of the cover lens 3 to irradiate the light.

When the light sources 37, … … are driven, heat is generated from the light source substrate 34, the light sources 37, … …, and the control substrate 35. The heat generated in the light source substrate 34 and the light sources 37, … … is transferred to and released from the first heat dissipation plate 25, and the heat generated in the control substrate 35 is transferred to and released from the second heat dissipation plate 29. The heat released from the first heat sink 25 and the second heat sink 29 is released to the outside of the lamp housing 2 from the heat release holes 20b, and … … formed in the cover base 20 of the lamp housing 2.

As described above, in the vehicle lamp 1, the first mounting portion 11 and the second mounting portion 12 that protrude in opposite directions from the mounting base 8 and to which the light source board 34 and the control board 35 are respectively mounted by heat caulking are provided in the lamp housing 2, and the first mounting portion 11 and the second mounting portion 12 are positioned on the same straight line.

Therefore, the first caulking jig 50 and the second caulking jig 60 can be simultaneously pressed from opposite directions against the first mounting portion 11 and the second mounting portion 12 which protrude in opposite directions from the mounting base 8 and are positioned on the same line, respectively, and the light source substrate 34 and the control substrate 35 can be mounted on the mounting base 8. Accordingly, the work time in the mounting step of mounting the light source substrate 34 and the control substrate 35 to the lamp housing 2 by thermal caulking can be shortened, and the workability in the mounting step can be improved.

The first attachment portion 11 includes a first base projection 13 continuous with the attachment base 8 and a first caulking pin 15 projecting from a front end surface of the first base projection 13, the second attachment portion 12 includes a second base projection 16 continuous with the attachment base 8 and a second caulking pin 18 projecting from a front end surface of the second base projection 16, the first attachment portion 11 is provided with a first reinforcing rib 14 projecting from an outer peripheral surface of the first base projection 13, and the second attachment portion 12 is provided with a second reinforcing rib 17 projecting from an outer peripheral surface of the second base projection 16.

Therefore, since the strength of the first pedestal projection 13 and the second pedestal projection 16 is increased by the first reinforcing rib 14 and the second reinforcing rib 17, respectively, the first attachment portion 11 and the second attachment portion 12 are less likely to deform when the first caulking jig 50 and the second caulking jig 60 are pressed against the first caulking pin 15 and the second caulking pin 18, respectively, and are heat-caulked. This ensures a stable mounting state of the light source substrate 34 and the control substrate 35 to the first mounting portion 11 and the second mounting portion 12.

Further, the lamp housing 2 is formed of a resin material, and a plurality of first reinforcing ribs 14 and second reinforcing ribs 17 are provided separately in the circumferential direction, respectively, and the positions of the first reinforcing ribs 14 and the positions of the second reinforcing ribs 17 in the circumferential direction are set to be different positions.

Therefore, since the sink mark generated in the mounting base 8 at the time of molding the lamp housing 2 can be suppressed, the molding accuracy of the lamp housing 2 can be improved, and the appropriate light distribution state can be ensured by improving the positional accuracy of the light sources 37, … … with respect to the lamp housing 2.

Further, a first heat sink plate 25 and a second heat sink plate 29 are provided, the first heat sink plate 25 having a first insertion hole 26a through which the first caulking pin 15 is inserted and being attached to the first attachment portion 11 in a state of being in contact with the light source substrate 34, and the second heat sink plate 29 having a second insertion hole 30a through which the second caulking pin 18 is inserted and being attached to the second attachment portion 12 in a state of being in contact with the control substrate 35.

Therefore, when the first caulking jig 50 is pressed against the first caulking pin 15 and heat-caulked, the first heat sink 25 is attached to the first attachment portion 11 in addition to the light source board 34, and when the second caulking jig 60 is pressed against the second caulking pin 18 and heat-caulked, the second heat sink 29 is attached to the second attachment portion 12 in addition to the control board 35. This eliminates the need to perform the mounting work of the light source board 34 and the control board 35 and the mounting work of the first heat sink 25 and the second heat sink 29, respectively, and improves workability in the mounting work.

In addition, the first heat sink 25 and the second heat sink 29 are located on opposite sides with the mounting base 8 interposed therebetween.

Therefore, when the light sources 37, and … … are driven by the on/off control of the control board 35, the heat released from the first heat sink 25 and the second heat sink 29 is separated by the mounting base 8, and the driving states of the light sources 37, and … … and the control board 35 are not easily affected by each other, so that a stable driving state of the light sources 37, and … … can be ensured.

In addition, in the above-described assembling work of the vehicle lamp 1, the same number of first caulking jigs 50 and second caulking jigs 60 as the number of the first mounting portions 11 and the second mounting portions 12 may be used. For example, when the first mounting

portions

11, 11 and the second mounting

portions

12, 12 are provided three by three as described above, the first mounting

portions

11, 11 and the second mounting

portions

12, 12 are heated and pressurized simultaneously by the first caulking jigs 50, 50 and the second caulking jigs 60, respectively, using the first caulking jigs 50, 50 and the second caulking jigs 60, respectively.

By performing such an operation, the operation time in the mounting step of mounting the light source substrate 34 and the control substrate 35 to the lamp housing 2 by thermal caulking can be significantly shortened, and the workability in the mounting step can be further improved.

Claims

1. A lamp for a vehicle, characterized in that,

the vehicle lamp includes:

a lamp housing having a mounting base;

a light source substrate on which a light source is mounted; and

a control substrate for controlling the light source to be turned on and off,

the lamp housing is provided with a first mounting part and a second mounting part which protrude from the mounting base in opposite directions and to which the light source substrate and the control substrate are respectively mounted by thermal caulking,

the first installation part and the second installation part are located on the same straight line.

2. The vehicular lamp according to claim 1,

the first mounting portion has a first base projection continuous with the mounting base and a first caulking pin projecting from a front end surface of the first base projection,

the second mounting portion has a second base projection continuous with the mounting base and a second caulking pin projecting from a front end surface of the second base projection,

the first mounting portion is provided with a first reinforcing rib protruding from an outer peripheral surface of the first base projection,

the second mounting portion is provided with a second reinforcing rib protruding from an outer peripheral surface of the second base projection.

3. The vehicular lamp according to claim 2,

the lamp housing is formed of a resin material,

a plurality of the first reinforcing ribs and the second reinforcing ribs are separately provided in the circumferential direction,

the position of the first reinforcing rib in the circumferential direction and the position of the second reinforcing rib in the circumferential direction are set to different positions.

4. The vehicular lamp according to claim 2,

one end of the first reinforcing rib and one end of the second reinforcing rib are respectively continuous with the mounting base.

5. The vehicular lamp according to claim 3,

the position of the first reinforcing rib in the circumferential direction and the position of the second reinforcing rib in the circumferential direction are staggered by 45 degrees.

6. The vehicular lamp according to claim 2 or 3,

the vehicle lamp is provided with:

a first heat sink plate having a first insertion hole through which the first caulking pin is inserted and attached to the first attachment portion in a state of being in contact with the light source substrate; and

and a second heat dissipation plate having a second insertion hole through which the second caulking pin is inserted, and attached to the second attachment portion in a state of being in contact with the control board.

7. The vehicular lamp according to claim 6,

the first heat dissipation plate and the second heat dissipation plate are located on opposite sides with the mounting base therebetween.

8. The vehicular lamp according to claim 6,

the first heat sink and the second heat sink are formed by bending a metal material having high heat dissipation properties into a predetermined shape, and each of the first heat sink and the second heat sink includes a laterally long arrangement surface portion, an upper surface portion bent from an upper edge of the arrangement surface portion, and a lower surface portion bent from a lower edge of the arrangement surface portion.