JP5622524B2 - Vehicle lighting - Google Patents

Description

  The present invention relates to a vehicular lamp such as a motorcycle using a light emitting element such as a light emitting diode (LED) as a light source.

  Conventionally, a license plate lamp that also has an LED as a light source is integrally attached to a tail lamp that uses an LED as a light source mounted on the rear of the vehicle body, and the position of the license plate lamp can be adjusted without changing the position of the tail lamp. A lamp is known (for example, Patent Document 1).

JP 2008-126708 A

  However, since the LED for the tail lamp and the LED for the license plate lamp are not arranged on the same substrate in the above vehicle lamp, the number of assembling steps is increased, the space in the lamp chamber is increased, and the lamp is downsized. It is difficult to plan.

  An object of the present invention is to solve the above-mentioned problems, and by arranging a plurality of light sources having different light emitting functions on the same substrate, the number of component mounting and assembly processes can be reduced, thereby reducing costs and savings. An object of the present invention is to provide a vehicular lamp that can be made space-saving.

  The object of the present invention is to provide a vehicular lamp in which a first lamp for irradiating the rear of the vehicle body and a second lamp for irradiating in a direction different from the first lamp are integrated. A first light source, a second light source of the second lamp, and a control circuit unit for controlling the lighting of the first light source and the second light source are disposed on the same bus bar, and the first light source of the bus bar A vehicular lamp characterized in that a bent portion is formed at a predetermined position between one light source and the second light source, and light from the first light source and the second light source is emitted in different irradiation directions. Achieved.

  According to the vehicular lamp configured as described above, by arranging the first light source and the second light source on the same bus bar, it is possible to reduce component mounting and assembly man-hours, and to achieve cost reduction and space saving.

  Moreover, in the vehicular lamp having the above-described configuration, it is preferable that the connection portion is formed by bending a part of the bus bar simultaneously with the formation of the bent portion.

  According to the vehicular lamp having such a configuration, since the connection terminal portion can be formed in one step of forming the bent portion, cost reduction and space saving can be further achieved.

  In the vehicular lamp configured as described above, it is preferable that at least a part of the control circuit portion is formed on a mounting surface of the bus bar formed along the front-rear direction of the lamp by the bent portion.

  According to the vehicular lamp having such a configuration, since the control circuit unit including the electronic components and the like is formed on the mounting surface disposed along the front-rear direction of the lamp, the control circuit unit is located at a position that is difficult to see in front view. It will be arranged and the appearance can be improved.

  In the vehicular lamp having the above-described configuration, a light-shielding rib that is interposed between the first light source and the second light source and shields at least one light is integrally formed in the resin housing that holds the bus bar. It is desirable that

  According to the vehicular lamp having such a configuration, the light emitted from the first light source and the light emitted from the second light source can be separated by the light shielding rib so as not to be mixed.

  In the vehicular lamp configured as described above, it is preferable that a connector housing surrounding the connection terminal portion is integrally formed with the housing.

  According to the vehicular lamp having such a configuration, it is possible to further reduce cost and save space while improving the assembling property of the mating connector.

  According to the vehicular lamp according to the present invention, by arranging the first light source and the second light source on the same bus bar, it is possible to reduce component mounting and assembly man-hours, and to achieve cost reduction and space saving. .

1 is a front view of a vehicular lamp 10 showing a first embodiment according to the present invention. FIG. 2 is a vertical sectional view taken along line AA in FIG. 1. FIG. 3 is a detailed view of a flat plate state of the bus bar 20 of FIG. 2 before bending. It is a longitudinal cross-sectional view of the vehicle lamp 40 which shows 2nd Embodiment based on this invention.

  Hereinafter, the 1st-2nd embodiment of the vehicle lamp concerning this invention is described based on FIGS. 1-4. First, a first embodiment of a vehicular lamp according to the present invention will be described with reference to FIGS.

  As shown in FIG. 1, a vehicular lamp 10 according to the present embodiment includes a lamp housing 11 that is fixed to the rear of a vehicle body with an opening at the rear side of the vehicle, and a red transparent front surface that is attached to the opening periphery of the lamp housing 11. The present invention is applied to a tail and stop lamp for a motorcycle including a cover 12.

  The vehicular lamp 10 includes a plurality of first light sources (hereinafter referred to as first LEDs) for a tail and stop lamp, which is a first lamp that irradiates the rear of the vehicle body in a lamp chamber defined by a lamp housing 11 and a front cover 12. 13).

  Further, a license plate lamp second light source (hereinafter referred to as a second LED) 14 is provided as a second lamp for irradiating a license plate P (see FIG. 2) attached to the rear of the vehicle body 1 from above. The first LED 13 and the second LED 14 are white LEDs that emit white light, and are at predetermined positions on the conductive bus bar 20 that are electrically connected to an electronic component 35 (see FIG. 3) such as a resistance for lighting control or a diode. It is mounted on.

  As shown in FIG. 2, the vehicular lamp 10 protrudes rearward (left side in the figure) from the vehicle main body 1 and is disposed substantially above the license plate P.

  The lamp housing 11 is made of ABS resin, and has a substantially L-shaped bus bar mounting portion 15 and an annular cover mounting portion 16 around the bus bar mounting portion 15. A plurality of caulking portions (not shown) protrude from the bus bar mounting portion 15 where the first LED 13 is disposed, and a bus bar holding portion 19 protrudes from a lower portion near the bus bar mounting portion 15 where the second LED 14 is disposed. Has been.

  A connector housing 17 is integrally formed on the rear surface side of the lamp housing 11 so as to surround a connection terminal portion 24 to be described later. Further, on the surface side of the lamp housing 11, a flat light-blocking rib 18 that is interposed between the first LED 13 and the second LED 14 and shields each other's light is integrally formed.

  The bus bar 20 on which the first LED 13 and the second LED 14 are mounted is bent in an L shape from the first bent portion 23 toward the vehicle body 1.

  The bus bar 20 is mounted with the first LED 13 by the first bent portion 23 and mounted on the vertical surface of the bus bar mounting portion 15 and the second LED 14 is mounted on the bus bar along the front-rear direction of the lamp. It is divided into a second lamp part 22 arranged on the horizontal plane of the part 15. Further, a connection terminal portion 24 for supplying power is cut out at a predetermined position of the bus bar 20 corresponding to the inside of the connector housing 17 of the lamp housing 11.

  The front cover 12 is formed of a red transparent first light-transmitting cover 31 through which light from the first LED 13 is transmitted, and a white second light-transmitting cover 32 through which light from the second LED 14 is transmitted in the vicinity below the second LED 14. . In this case, the first cover 31 and the second cover 32 are integrally formed in the front cover 12 by two-color molding. In addition, a diffusion step 34 for diffusing and emitting the light of the first LED 13 from the front surface side is formed in front of the first LED 13 and on the back surface side of the first translucent cover 31.

  By providing the diffusion step 34 in the first light-transmitting cover 31 in this manner, the first lamp portion 21 of the bus bar 20 can be made invisible, and the first LED 13 and the electronic component 35 on the lamp housing 11 and the bus bar 20 can be prevented. Can be invisible.

  The first translucent cover 31 may be colorless and transparent. In this case, by making the first LED 13 a red LED, the entire front cover 12 can be molded in a colorless and transparent manner, and the cost can be reduced.

  As shown in FIG. 3, the flat bus bar 20 is formed by punching, and a plurality of small bus bars are connected by a connecting member 37 integrally formed in the vicinity of the LEDs 13, 14 and the electronic component 35. The connecting member 37 is cut when assembled to the lamp housing 11 and divided into small bus bars. The first LED 13 and the second LED 14 are mounted on the slit 36 so as to bridge between adjacent small bus bars. When the electronic component 35 is mounted on the bus bar 20, the electronic component 35 is bridged between adjacent small bus bars, and is arranged on a line connecting approximately the center lines of the thicknesses of both small bus bars (see FIG. 2).

  The first lamp portion 21 of the bus bar 20 includes a first LED 13 and a first control circuit portion 26 that controls lighting of the first LED 13. The second lamp unit 22 includes a second LED 14 and a second control circuit unit 27 that controls lighting of the second LED 14.

  Note that the first control circuit unit 26 may be disposed on the second lamp unit 22 side. In this case, only the plurality of first LEDs 13 are mounted on the first lamp unit 21 side, and the second LEDs 14, the first control circuit unit 26, and the second control circuit unit 27 are disposed on the second lamp unit 22 side.

  It is also possible to provide a heat sink by bending a part of the bus bar 20. Heat generated from the LEDs 13 and 14 and the control circuit units 26 and 27 can be efficiently radiated by the heat sink.

Next, the assembly procedure of the vehicle lamp 10 will be described.
First, the electronic parts 35 such as the LEDs 13 and 14 and other resistors and diodes are mounted at predetermined positions on the bus bar 20 in a flat state, and thereafter the bent portions 23 and 25 are collectively bent at substantially right angles (this embodiment). Then mountain fold). At this time, one of the second bent portions 25 is bent, whereby the connecting terminal portion 24 is cut and raised.

  Next, the bent bus bar 20 is attached to the bus bar attaching portion 15 of the lamp housing 11. At this time, the first ramp portion 21 is positioned by a plurality of caulking portions protruding from the bus bar mounting portion 15. Further, the second lamp portion 22 is held by sandwiching the tip end portion 38 between the lower surface of the bus bar mounting portion 15 and the bus bar holding portion 19.

  At this time, the light shielding rib 18 passes through the through space 39 formed in the lower end portion of the first lamp portion 21 and protrudes between the first LED 13 and the second LED 14. After that, the bus bar 20 is fixed to the bus bar mounting portion 15 of the lamp housing 11 by thermally welding the caulking portion. Finally, the front end portion of the front cover 12 is fixed to the cover mounting portion 16 of the lamp housing 11 by screws (not shown), adhesion, welding, or the like, whereby the assembly operation of the vehicle lamp 10 is completed.

  According to the vehicle lamp 10 of the present embodiment described above, the first LED 13 of the first lamp unit 21, the second LED 14 of the second lamp unit 22, and the first control circuit unit for controlling lighting of the first LED 13 and the second LED 14. 26 and the second control circuit unit 27 are arranged on the same bus bar 20.

  In addition, the 1st bending part 23 is formed in the predetermined position between 1st LED13 of the bus bar 20, and 2nd LED14, and the light from 1st LED13 and 2nd LED14 is radiate | emitted in a respectively different irradiation direction. Thereby, by arrange | positioning 1st LED13 and 2nd LED14 on the same bus-bar 20, component mounting and an assembly man-hour can be reduced, and cost reduction and space saving can be achieved.

  In addition, the bus bar 20 of the present embodiment is formed with the connecting terminal portion 24 by partially bending the second bent portion 25 simultaneously with the formation of the first bent portion 23. Thereby, since the connection terminal part 24 can be formed in one process of forming the first bent part 23, cost reduction and space saving can be further achieved.

  Moreover, the 2nd control circuit part 27 which performs lighting control of 2nd LED14 of this embodiment is formed on the 2nd lamp part 22 formed along the lamp front-back direction by the 1st bending part 23. FIG. As a result, the second control circuit unit 27 including the electronic component 35 and the like is formed on the second lamp unit 22 arranged along the lamp front-rear direction, so that the second control circuit unit 27 is not easily seen in front view. Can be arranged and the appearance can be improved.

  It is also possible to form the first control circuit unit 26 of the first LED 13 on the second lamp unit 22 together with the second control circuit unit 27. In some cases, only the first control circuit unit 26 that takes up space is used as the second control circuit unit 26. It is also possible to form on the lamp part 22.

  Further, in the lamp housing 11 of the present embodiment, a light shielding rib 18 that is interposed between the first LED 13 and the second LED 14 and shields each other's light is integrally formed. Thereby, the light emitted from the first LED 13 and the light emitted from the second LED 14 can be separated by the light shielding rib 18 so as not to be mixed.

  Further, the lamp housing 11 of the present embodiment is integrally formed with a connector housing 17 that surrounds the connection terminal portion 24. Thereby, it is possible to further reduce the cost and save space while improving the assembling property of the mating connector.

  Next, the vehicle lamp 40 of 2nd Embodiment which concerns on this invention is demonstrated based on FIG. In addition, about the location of the same structure as the said 1st Embodiment, detailed description is abbreviate | omitted by attaching | subjecting the same code | symbol.

  As shown in FIG. 4, the vehicle lamp 40 of the present embodiment is different from the bus bar 20 of the vehicle lamp 10 of the first embodiment, and the first bent portion 53 of the bus bar 50 is the first light transmission of the front cover 12. It is bent in the irradiation direction of the first LED 13 on the cover 31 side (valley fold in this embodiment). Accordingly, the second lamp portion 22 of the bus bar 50 can be disposed on the lower surface of the light shielding rib 18, and the lower surface of the light shielding rib 18 can be effectively used as the bus bar mounting portion.

  In addition, since the lamp housing 11 can be formed compactly and the lamp chamber in the front cover 12 can be widened, good heat dissipation can be ensured.

  In the flat state of the bus bar 50, the first lamp portion 21 including the first LED 13 is formed on the front surface side of the bus bar 50, and the second lamp portion 22 including the second LED 14 is formed on the back surface side of the bus bar 50. Accordingly, when mounting the LEDs 13, 14 and the electronic component 35, etc., after mounting the first LED 13, the electronic component 35, etc. on the first lamp portion 21, the bus bar 50 is reversed and then the second LED 14, the electronic component 35, etc. Mounting on the lamp unit 22 is performed. The first LED 13 is mounted on one surface of the bus bar 50 and the second LED 14 is mounted on the other surface. However, the electronic components 35 and the like for controlling the lighting of the LEDs 13 and 14 may be mounted on one surface of the bus bar 50. I do not care.

  According to the vehicle lamp 40 of the present embodiment described above, since the first bent portion 53 of the bus bar 50 is bent along the extending direction of the light shielding rib 18, the second lamp portion 22 of the bus bar 50 is protected from the light shielding rib. 18 on the lower surface. As a result, the lower surface of the light shielding rib 18 can be effectively used as a bus bar mounting portion, and the lamp chamber can be widened to ensure good heat dissipation.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimension, numerical value, form, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

  For example, in the vehicular lamps 10 and 40 according to the first and second embodiments, the case where the first lamp is a tail and stop lamp of a motorcycle and the second lamp is a license plate lamp has been described as an example. The lamp and the second lamp may be irradiated in two different directions, and may be applied to a turn signal lamp, a side marker lamp for an automobile, or a rear combination lamp in which a plurality of lamp units are integrated. it can.

  Specifically, the configuration of the present invention can also be applied when the first lamp is a turn signal lamp for an automobile and the second lamp is a cornering lamp.

  In the vehicle lamps 10 and 40 according to the first and second embodiments, the LEDs 13 and 14 and the electronic component 35 are mounted on one bus bar 20 and 40. If the number of LEDs is large, the LEDs A dedicated bus bar for the unit and the control circuit unit may be provided separately, and a bus bar mounting portion separate from the lamp housing 11 may be provided to arrange the LED unit and the control circuit unit separately.

DESCRIPTION OF SYMBOLS 10,40 ... Vehicle lamp, 11 ... Lamp housing, 12 ... Front cover, 13 ... 1st LED (1st light source), 14 ... 2nd LED (2nd light source), 15 ... Bus-bar attaching part, 17 ... Connector housing, 18 ... light-shielding ribs, 20, 50 ... bus bars, 21 ... first lamp part, 22 ... second lamp part, 23,53 ... first bent part, 24 ... connecting terminal part, 25 ... second bent part, 26 ... first DESCRIPTION OF SYMBOLS 1 control circuit part, 27 ... 2nd control circuit part, 31 ... 1st translucent cover, 32 ... 2nd translucent cover, 34 ... Diffusion step, P ... License plate

Claims (4)

A first lamp that functions as a tail and stop lamp for irradiating the rear of the vehicle body;
In the vehicular lamp integrally configured with a second lamp functioning as a license plate lamp for irradiating the license plate,
The first light source of the first lamp, the second light source of the second lamp, and a control circuit unit for controlling lighting of the first light source and the second light source are disposed on the same bus bar, A first bent portion is formed at a predetermined position between the first light source and the second light source of the bus bar, and light from the first light source and the second light source is emitted in different irradiation directions;
The vehicular lamp, wherein the first light source is disposed on one surface of the bus bar, and the second light source is disposed on the other surface of the bus bar.   The bus bar is formed with a second bent portion that is bent simultaneously with the first bent portion and a connection terminal portion that is cut and raised when the second bent portion is bent. The vehicular lamp according to 1.   3. The vehicle according to claim 1, wherein at least a part of the control circuit portion is formed on a mounting surface of the bus bar formed along the lamp front-back direction by the first bent portion. Light fixture. The resin housing that holds the bus bar is integrally formed with a light-shielding rib that is interposed between the first light source and the second light source and shields at least one light. The vehicle lamp according to at least one of 1 to 3 .

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