JP3174483B2 - Vehicle lighting - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicular lamp, and more particularly, to an improved electric connection structure for electrically connecting a light source bulb provided in a lamp body and an external power supply for supplying power to the bulb. The present invention relates to a vehicle lamp.

[0002]

2. Description of the Related Art In a conventional vehicular lamp, in order to make an electrical connection to a bulb provided in a lamp body, a power supply side cord is connected via a connector to a halve cord connected to a base of the bulb. Has been taken. In particular,
In a lamp in which the bulb is attached to a reflector in which the bulb is internally supported so that the aiming can be adjusted in the lamp body, the reflector and the valve are moved relative to the lamp body, so that the valve is not obstructed in this operation. The cord is connected to a relay connector provided on the lamp body, and an electrical connection to the outside of the lamp body is made via the relay connector.

FIG. 5 is a perspective view showing an example of a conventional structure, in which a bulb insertion hole 8 is formed on the back of the lamp body 1 and the reflector 5 provided inside the lamp body 1 is inserted through the bulb insertion hole 8. Is configured to be detachable. A back cover 9A for covering the valve insertion hole 8
This is fitted into the bulb insertion hole 8 to seal the inside of the lamp body. The back cover 9A is provided with a relay connector 40, and supports a pair of electrode pieces 41 on the inner surface side of the back cover 9A. The valve code 22 on the positive electrode side connected to the valve 5
An electrode terminal is provided at the tip of the connector, and this electrode terminal is fitted to the electrode piece 41 of the relay connector 40 to perform electrical connection.

Further, the electrode piece 41 of the relay connector 40
Is connected to one end of an intermediate cord 42,
The intermediate cord 42 is pulled out to the outside of the back cover 9A, and the other end is connected to the intermediate connector 43.
A vehicle body side connector 44 connected to the power cord 29 is fitted into the intermediate connector 43. This intermediate connector 4
When the vehicle body side connector 44 is fitted to the connector 3, electric power from a vehicle battery (not shown) is supplied from the power cord 29 to the valve 5 via the vehicle body side connector 44, the intermediate connector 43, the intermediate cord 42, and the relay connector 40. Will be. The ground cord 24 connected to the reflector 3
Are directly connected to the intermediate connector 43.

By providing the relay connector 40, even when an external force is applied between the power cord 29 and the intermediate cord 42, the external force is cut off at the relay connector 40 and is not transmitted to the valve cord 22. The wire 5 is prevented from being broken, and the valves 5 are prevented from being damaged due to excessive force. Further, by providing the intermediate connector 43 and the vehicle body side connector 44, it becomes possible to easily perform the work of attaching and detaching the lamp to and from the vehicle body.

[0006]

In such a conventional structure, the relay connector 40 provided on the back cover 9A is provided.
At the same time, the intermediate connector 43 and the vehicle body side connector 44 for connecting the relay connector 40 and the power supply side are required, and there is a problem that the number of parts is increased. Further, in the electrical connection work of the power supply wiring to the valve 5, the work of fitting and connecting the intermediate connector 43 and the vehicle body side connector 44, the work of connecting the intermediate cord 42 to the relay connector 40, and the work of connecting the valve cord 22 to the relay connector 40. Connection work is required, the number of man-hours is large, and the assembly work is complicated and inefficient. In addition, an earth cord 24 is actually required to connect the earth side of the valve 5 to the relay connector 40. When the work of connecting the earth cord 24 is included, the number of assembly work is extremely large. .

As described above, when an external force such as a pulling force is applied to the intermediate cord 42 via the power cord 29 drawn out of the lamp, the relay connector 40
The external force can be prevented from being affected by the valve 5, but a disconnection or the like occurs at the connection point between the intermediate cord 42 and the relay connector 40, for example, at the connection point between the electrode piece 41 and the intermediate cord 42, and the There is also a problem that the work is troublesome since the work is easily performed inside the back cover 9A when repairs are easily made.

[0008]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vehicular lamp capable of reducing the number of parts, reducing the number of assembling work steps, and making it easy to respond to an external force. It is in.

[0009]

SUMMARY OF THE INVENTION A vehicular lamp of the present invention comprises:
A back cover detachably attached to an opening for valve replacement opened on the back of the lamp body, a relay connector for relaying wiring connected to the bulb and an external power supply, and the relay connector, is composed of an internal electrical connection portion electrically connected is provided on the inner surface side of the back cover to the valve, the external electrical connection portion and to be connected are provided on the outer surface side of the wiring of the external power supply, and these internal electrical connections The part and the external electrical connection part are integrally formed by conductive terminals provided so as to penetrate the back cover.

Further , in the present invention, the bulb is a lamp.
Is supported in the interior supported reflector in the body, the reflector is aiming adjustably configured for the lamp body, also it is preferable to electrically connect between the valve and the relay connector code that flexibility .

[0011]

The external power supply and the valve are connected by connecting a valve cord and a ground cord as cords connected to the valve to the internal electrical connection of the relay connector, and connecting the wiring of the external power supply to the external electrical connection of the relay connector. Since the electrical connection between the first connector and the second connector is enabled, an intermediate connector is not required, the number of parts is reduced, and the assembling work is facilitated.
Further, when an external force is applied, only the connector connected to the external electrical connection part is disconnected, so that damage to the relay connector itself is prevented. In addition, the valve supported by the reflector
With a flexible cord
By making electrical connections, aiming adjustment of the reflector is assured.
Is preserved.

[0012]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view of an embodiment in which the present invention is applied to a fog lamp of an automobile. A lamp room is defined by a resin lamp body 1 and a lens 2 attached to an opening thereof, and a reflector 3 is provided inside the lamp room, and a bulb mounting hole 4 provided in the reflector 3 is provided. The valve 5 is removably supported on the reflector 3 by elastically supporting the base 5 a of the valve 5 with a set spring 7 using a mounting bracket 6. The reflector 3 is supported on the lamp body 1 so as to be capable of adjusting the aiming. Although the details are omitted, a part of the reflector 3 is supported by the lamp body and the aiming nut is provided at the other two positions. Are screwed into two aiming adjusting screws supported by the lamp body, and the reflector 3 is tilted with respect to the lamp body 1 by the turning operation of the aiming adjusting screws, whereby the optical axes of the bulb 5 and the reflector 3 are adjusted. It is configured to be.

A circular bulb insertion hole 8 is formed on the back of the lamp body 1 at a position facing the bulb 5, and the bulb 5 can be attached to and detached from the reflector 3 through the bulb insertion hole 8. Is configured.
A circular back cover 9 is detachable from the valve insertion hole 8, and is configured to seal the valve insertion hole 8 when it is mounted.

FIG. 2 is an enlarged sectional view of FIG. 1, FIG. 3 is a perspective view of a main part of the back cover 9, and FIGS. 4 (a) and 4 (b).
As shown in a perspective view and a front view, respectively, as viewed from the inner surface side, a main body 10 having a short cylindrical shape with a bottom formed of a resin material is provided. Is provided with a protruding piece 11 in the radial direction. When the protruding piece 11 is fitted into a cut groove 12 provided on the inner peripheral edge of the valve insertion hole 8 and the back cover 9 is rotated by a small angle in the fitted state. When the protruding piece 11 abuts on the inner peripheral edge of the valve insertion hole 8, mounting with a so-called bayonet structure becomes possible. In addition, by inserting the packing 13 between them, the waterproof property is ensured.

A box portion 14 and a small-diameter cylindrical portion 15 connected to the box portion 14 are formed integrally on the outer surface of the bottom of the main body of the back cover 9 in the radial direction.
The inside of the tubular portion 15 is penetrated by a rectangular recess 16 provided on the inner surface of the bottom of the back cover 9. A pair of conductive terminals 17 and 18 made of a metal material are provided from the recess 16 to the inside of the box portion 14 and the inside of the tubular portion 15, and these conductive terminals 17 and 18, the tubular portion 15 and the recess 16 are provided. Constitute the relay connector 19. That is, the recess 16 is divided into two areas, large and small, by a partition 9 a integral with the back cover 9, and the conductive terminal 1 integrally molded with the back cover 9 is made of resin.
The one end portions 17a and 18a of the first and second electrodes 7 and 18 are arranged so as to be exposed in the respective concave portions 16 to form an internal electric connection portion 20, and the conductive terminals 17 and 18 bend the intermediate portions thereof appropriately. Once formed, each other end 17
b and 18b are arranged side by side in the tubular portion 15 so as to be exposed in the tubular portion 15 to form the external electric connection portion 21.

Here, in the recess 16 divided into the large and small areas, the conductive terminal 18 exposed to the small recess is a negative (earth) electrode terminal, and one end 18a is formed in a tongue shape. The conductive terminal 17 exposed to the large recess is a positive electrode terminal, and is bent into a flat bag shape at one end 17a. A tongue-shaped electrode piece 23 at the tip of the valve cord 22 connected to the valve base 5a is attached to the positive electrode terminal 17a in a fitted state. A flat bag-shaped electrode terminal 25 provided at the tip of an earth cord 24 connected to an earth terminal 27 provided integrally with a part of the mounting bracket 6 is fitted to the negative electrode terminal 18a. Joined and attached. In this embodiment, the earth cord 24
A flat bag-shaped ground electrode terminal 26 is also connected to the base end of the base member, and the ground electrode terminal 26 is fitted and attached to the tongue-shaped ground terminal 27 described above. .

On the other hand, the cylindrical portion 1 on the outer surface of the back cover
5, the other end 17 of the pair of conductive terminals 17 and 18
b and 18b are arranged in parallel to form an external electric connection portion 21 of the relay connector 19, and a vehicle body side connector 28 connected to a power cord 29 is connected to the external electric connection portion 21. It is removable. In this embodiment, the body-side connector 28 is connected to the cylindrical portion 1.
5 and a cylindrical outer tubular portion 31 outside the tubular portion 15 that covers the tubular portion 15 at the outside thereof, and faces the two holes provided in the inserted portion 30 respectively. The electrode 30a is arranged. Therefore, when the vehicle body side connector 28 is fitted to the tubular portion 15 of the relay connector 19, the other end portions 17b, 18 of the pair of conductive terminals 17, 18 are provided.
b is electrically connected to each electrode 30a, and a power cord 29
Can be electrically connected to each of the conductive terminals 17 and 18 and further electrically connected to the internal electrical connection portion 20. Also,
In this state, the outer tubular portion 31 is configured to cover the tubular portion 15 to ensure waterproofness.

Therefore, according to this configuration, the relay connector 19 formed on the back cover 9 is formed by integrally forming the intermediate connector 43 and the intermediate cord 42 in the conventional structure shown in FIG. 5 as a part of the relay connector. Will be. Therefore, the intermediate connector 43 and the intermediate cord 4
2 becomes unnecessary, the number of parts can be reduced, and the work of connecting one of the intermediate cords 42 to the relay connector 40 and the other to the intermediate connector 43 becomes unnecessary. Also, in the assembling work for electrically connecting the valves, the work of connecting the valve cord 22 and the earth cord 24 to the internal electric connection portion 20 of the relay connector 19 is the same as that of the conventional structure. By simply connecting the side connector 28 to the external electrical connection portion 21 of the relay connector 19, the electrical connection to the external power supply is completed.
And the number of man-hours for connecting to the intermediate connector 43 respectively.

When replacing the bulb 5, the back cover 9 is detached from the lamp body 1, the set spring 7 is released, the bulb 5 is removed from the reflector 3, and the bulb cord 22 is connected to the relay connector 19. It is sufficient to remove it from the conductive terminal 17 and reconnect it to the valve cord of the valve to be replaced, which is very easy. In the case of this replacement, it is preferable to temporarily cut off the electrical connection with the power supply. In this case, it is sufficient to simply remove the vehicle body side connector 28 from the tubular portion 15 and the operation is simplified.

When an external force is applied to the power cord 29, the vehicle body side connector 28 is detached from the external electrical connection portion 21 of the relay connector 19, so that the relay connector 1
No external force is applied to the inside of the connector 9 and the relay connector 19 is not damaged. Needless to say, it is possible to prevent external force from being applied to the valve 5.

Further, since the bulb cord 22 and the earth cord 24 are made of a flexible cord material, even when the reflector 3 is tilted with respect to the lamp body 1 by the aiming adjustment, each cord can be subjected to the aiming operation. Does not affect Also, the back cover 9
In the operation for detaching the lamp 5 from the lamp body 1 and the subsequent detachment of the bulb 5 from the reflector 3, the operation is not difficult by the bulb cord 22 or the earth cord 24.

The present invention is not limited to the above embodiment, and the structure of the relay connector can be changed as necessary.

[0023]

As described above, according to the present invention, the back cover of the lamp body is provided with the relay connector for relaying the wires connected to the bulb and the external power source, respectively. since the integrally formed by providing an external electrical connection portion to be connected to the connection portion and the external power supply wiring so as to penetrate through the back cover conductive terminal, the wiring of the external power supply to an external electrical connection portion of the relay connector The connection enables an electrical connection between the external power supply and the valve, and eliminates the need for an intermediate connector.
As a result, the number of parts can be reduced, and the assembling work becomes easy. Further, when an external force is applied, only the connector of the external electrical connection part is detached, which has an effect of preventing the relay connector itself from being damaged.

[0024] In the present invention, the valve is supported in aiming adjustable reflector, and the valve and the medium
Since the flexible electrical cord is used to electrically connect to the internal electrical connection of the connector, each cord affects the aiming operation even if the reflector is tilted with respect to the lamp body due to the aiming adjustment. In addition, even when the back cover is detached from the lamp body or when the bulb is later detached from the reflector, the operation is not made difficult by the bulb cord or the earth cord.

[Brief description of the drawings]

FIG. 1 is a sectional view of a lamp to which the present invention is applied.

FIG. 2 is an enlarged sectional view of a main part of the lamp of the present invention.

FIG. 3 is a perspective view of a main part.

FIG. 4 is a perspective view and a front view of the back cover as viewed from an inner surface side.

FIG. 5 is a perspective view of a part of a lamp including a conventional back cover.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lamp body 3 Reflector 5 Valve 8 Valve insertion hole 9 Back cover 15 Cylindrical part 16 Concave part 17, 18 Conductive terminal 19 Relay connector 20 Internal electric connection part 21 External electric connection part 22 Valve code 24 Earth cord 27 Power cord 28 Body side connector

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-6-94018 (JP, A) JP-A-3-222201 (JP, A) West German Patent Application Publication 3939122 (DE, A1) (58) Field (Int.Cl. ⁷ , DB name) F21S 8/10 F21V 14/04 F21V 23/00

Claims (1)

(57) [Claims] 1. A lamp body, a bulb disposed in the lamp body, and a back cover removably attached to an opening opened on a back surface of the lamp body corresponding to the bulb. A relay connector provided on the back cover for relaying wiring connected to the valve and an external power supply, wherein the relay connector is provided on an inner surface side of the back cover and electrically connected to the valve. And an external electric connection portion provided on the outer surface side and connected to the wiring of the external power supply, and the internal electric connection portion and the external electric connection portion penetrate the back cover. are integrally formed by a conductive terminal provided as,
The bulb is a refrigerated lamp supported inside the lamp body.
The reflector is supported on the lamp body with respect to the lamp body.
Aiming adjustment is possible, the valve and the relay
Flexible connection between the connector and the internal electrical connection
A vehicular lamp characterized by being electrically connected by a cord .