JPH083929Y2 - Vehicle lighting - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a vehicular lamp, and more particularly to improvement of a connection structure between the vehicular lamp and an external cord.

[Prior Art] Conventionally, it is installed on an automobile lamp, particularly on the rear upper surface of the vehicle body or on the roof, and when the brake is operated, it lights up brightly together with the braking light to further draw the attention of the driver of the following vehicle, thereby preventing a rear-end collision accident. In a vehicular lamp such as a high mount stop lamp, which is used for prevention, a large number of light emitting diodes are used as light sources. Then, these light emitting diodes are mounted on a printed circuit board and arranged in the lamp case, and one end of the external cord is guided into the lamp case to be directly soldered to the cord contact portion of the printed circuit board.

[Problems to be Solved by the Invention] However, in such a conventional vehicular lamp, when a printed circuit board is manufactured, an electric component such as a light emitting diode, a resistor, and an external cord is usually mounted on the printed circuit board. After being immersed in the solder bath and connected to the electric circuit of the printed circuit board, the printed circuit board is washed to remove the flux, and then dipped in the code bath to apply a moisture resistant coating to the printed circuit board and dry and solidify it. In addition, there is a problem in that external cords interfere with the process of dipping and soldering, washing, and applying a moisture-resistant coat, and workability is extremely poor. It was

Therefore, the present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to improve workability in a board manufacturing process and reduce manufacturing cost, and also to prevent damage and disconnection of external cords. Another object of the present invention is to provide a vehicular lamp in which solder peeling or the like is prevented and the waterproofness of the lamp is improved.

[Means for Solving the Problems] In order to achieve the above object, the present invention arranges a printed circuit board horizontally in a lamp case, and bends a lead wire to mount a light emitting diode on the printed circuit board with an optical axis of the printed circuit board. Mounted so as to be parallel to the connector, the connector case is integrally projected on the lamp case, one end is connected to the external cord contact part provided on the printed circuit board, and the other end is inserted into the connector mount part. Is provided in parallel to the printed circuit board, a connector of an external cord is detachably attached to the connector attaching portion via a gasket, and the external cord is connected to the other end of the terminal.

[Operation] In the present invention, when the connector is fitted in the connector mounting portion, the external cord is connected to the electric circuit of the printed circuit board through the terminal. The gasket seals the terminal insertion hole of the connector mounting portion and prevents rainwater from entering the lamp case through the hole. Since the light emitting diode and the terminal are mounted parallel to the printed board, the height of the lamp is reduced.

[Embodiment] Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings.

FIG. 1 shows an embodiment of the vehicle lamp according to the present invention applied to a high mount stop lamp.
-I line enlarged sectional view, FIG. 2 is a rear view of the connector mounting portion,
FIG. 3 is a partially cutaway front view of the lamp. In FIG. 3, 1 is a rear spoiler having a wing shape that is long in the left-right direction and is installed on the rear upper surface 2A of the vehicle body 2 via a gasket (not shown), and 3 is the longitudinal center of the rear projecting end of the rear spoiler 1. It is a strip-shaped high-mount stop lamp that is long in the left-right direction and is disposed in an elongated notch 4 having a predetermined length provided in the section.

The high mount stop lamp 3 is a lamp case 5 formed on a flat plate as shown in FIGS. 1 and 2.
And a rear surface having a substantially U-shaped longitudinal cross section, that is, a front end of the vehicle body is opened, and an open end 6a is fixed to the surface of the lamp case 5 (the rear surface of the vehicle body) by ultrasonic welding or the like. Lens 6, front lens 6 and lamp case 5
A printed circuit board 8 housed and arranged in a lamp chamber 7 formed by a plurality of light emitting diodes 9 mounted on the surface of the printed circuit board 8 in a row at a predetermined interval in the vehicle width direction.
And a pair of terminals 12 (12A, 12B) for connecting the printed circuit board 8 and the connector 11 of the external cord 10 to each other.

A plurality of board mounting portions 13 are integrally provided on the front surface of the lamp case 5 so as to project toward the front, and a screw pilot hole 14 is formed on the top surface of the front end portion thereof. On the other hand, in the central portion of the rear surface of the lamp case 5, a rectangular tube-shaped connector mounting portion 16 is integrally formed so as to form a connector accommodating recess 15 having a size into which the connector 11 can be fitted.

The printed board 8 is installed substantially horizontally on the board mounting portion 13 of the lamp case 5, and is fixed by a tapping screw 17 screwed into the screw pilot hole 14. Further, a large number of lead wire insertion holes 18 are formed in the printed circuit board 8, and the lead wires 19 of the respective light emitting diodes 9 are formed in the holes 18.
Is inserted from the front surface side and protrudes to the back surface side, and the protruding end portion is a conductive portion formed by printing on the back surface side of the printed circuit board 8.
It is connected to 20 by solder 21. Furthermore, a pair of left and right external cord contact portions 22 are formed by printing at the same time as the formation of the conductive portion 20 in the center of the back surface of the printed circuit board 8, one of which is the plus side and the other of which is the minus side.

The light emitting diode 9 is arranged in front of the printed circuit board 8 (rear side of the vehicle body) with its optical axis substantially horizontal and orthogonal to the vehicle width direction and with its front end facing the rear side of the vehicle body. The end portion is bent downward at a substantially right angle and is inserted into the lead wire insertion hole 18 from above.

The pair of terminals 12 are the pair of external cord contact portions 22.
Is formed of a metal plate having excellent conductivity, one end of which is formed on the printed circuit board 8
And is connected to one of the pair of cord contact portions 22 by solder 23, and the other end is also inserted into an insertion hole formed in the printed circuit board 8 and It is soldered to the other of the pair of cord contact portions 22. On the other hand, the other ends of the pair of terminals 12 are bent rearward so as to be substantially horizontal, inserted into the terminal insertion holes 25 provided in the lamp case 5, and positioned inside the connector mounting portion 16. Has been done. And each terminal
On the other end side of 12 is formed an oblique cut-and-raised piece 26 which is inclined at an appropriate angle with respect to the terminal surface. This cut and raised piece 26
Is for preventing the terminal 12 from being pushed forward and moving when the connector 11 is connected.The front end side is separated upward from the terminal surface, and the rear end side is cut and raised so as to connect to the terminal body. Each is inserted into a recess 27 provided on the inner bottom surface of the storage recess 15.

The connector 11 is connected to one end of the external cord 10 and is removably inserted into the connector housing recess 15 via a gasket 28. The connector body 30 is made of a cylindrical body and is made of a plastic material. A pair of terminal pieces 32 inserted into the two through holes 31 provided inside 30 to prevent the respective pieces from being pulled out are provided. At the rear end of each terminal piece 32, the tip end of each core wire of the external cord 10 is provided with a seal rubber 33. Are respectively connected via. Each of the terminal pieces 32 has a rectangular tubular shape at the tip side so that the other end of the terminal 12 can be inserted and connected.

In such a configuration, when the connector 11 is fitted into the connector accommodating recess 15 from the rear, the terminal pieces 32 and the other ends of the terminals 12 are fitted and connected to each other, whereby the external cord
10 is electrically connected to each external cord contact portion 22 of the printed circuit board 8.

Here, in the present invention, the external cord 10 is not connected to the external cord contact portion 22 of the printed circuit board 8 in advance, but the printed circuit board 8 in which the light emitting diode 9 and the terminal 12 are mounted in advance is provided in the lamp chamber 7. Since the other end of the terminal 12 is inserted into the connector accommodating recess 15 and the connector 11 is inserted into the connector mounting portion 16 and each terminal piece 32 is connected to the terminal 12, respectively. It is possible to improve the workability of the board manufacturing and reduce the manufacturing cost without the risk that the external cord 10 will be an obstacle in the steps of dipping soldering, cleaning and applying the moisture-proof coating in the board manufacturing process. In addition, there is no concern about damage to the external cord 10, disconnection, peeling of solder, or the like. Furthermore, since the gasket 28 in the connector mounting portion 16 seals the gap between the connector 11 and the connector mounting portion 16, there is no risk that rainwater or the like will enter the lamp chamber 7 through the terminal insertion hole 25, and the waterproofness of the lamp will be improved. Improve. Further, since the light emitting diode 9 and the terminal 12 are mounted in parallel with the printed circuit board 8, the lamp can be made thin.

It should be noted that although the above-described embodiments have been described as being applied to the high mount stop lamp, the present invention is not limited to this, and all vehicle lamps having a printed circuit board with a large number of light emitting diodes installed therein are incorporated. Can be applied to.

[Effects of the Invention] As described above, in the vehicular lamp according to the present invention, the printed circuit board is horizontally arranged in the lamp case, and the light emitting diode is arranged on the printed circuit board by bending the lead wire. They are mounted so as to be parallel to each other, and a connector mounting portion is integrally projected on the lamp case, one end is connected to an external cord contact portion provided on the printed circuit board, and the other end is inserted into the connector mounting portion. Terminals are provided in parallel to the printed circuit board, the connector of the external cord is detachably attached to the connector mounting portion via a gasket, and the external cord is connected to the other end portion of the terminal. It is possible to improve the workability due to the external cord in the manufacturing process, improve the productivity and reduce the cost, and also to prevent the cord from being damaged or the wire breaking accident. This can be prevented in advance, and since the connector is inserted into the connector mounting portion via the gasket, the waterproofing of the lamp case is also good. Since the light emitting diode and the terminal are mounted in parallel with the printed circuit board, the lamp can be made thin.

[Brief description of drawings]

FIG. 1 shows an embodiment of the vehicle lighting device according to the present invention applied to a high mount stop lamp.
FIG. 2 is an enlarged sectional view taken along line I, FIG. 2 is a rear view of a main part of the lamp case, and FIG. 1 ... Rear spoiler, 2 ... Car body, 3 ... High-mount stop lamp, 5 ... Lamp case, 6 ... Front lens, 7 ... Lamp room, 8 ... Printed circuit board, 9 ... Light emitting diode, 10 …… External code, 11 …… Connector, 12, 12
A, 12B …… Terminal, 15 …… Connector housing recess, 16 …… Connector mounting part, 22 …… External cord contact part.

Claims (1)

[Scope of utility model registration request] 1. A printed circuit board is horizontally arranged in a lamp case, a lead wire is bent to mount a light emitting diode on the printed circuit board so that its optical axis is parallel to the printed circuit board, and a connector is attached to the lamp case. A portion integrally projecting, one end of which is connected to an external cord contact portion provided on the printed circuit board, and the other end of which is provided with a terminal to be inserted into the connector mounting portion in parallel to the printed circuit board. A vehicle lamp characterized in that a connector of an external cord is detachably attached to a connector attaching portion via a gasket, and the external cord is connected to the other end of the terminal.