JPS5817282Y2 - Vehicle lights - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a vehicular lamp, and more specifically, to a structure for attaching a connector to a housing.

In conventional vehicle lights, as a means for attaching the connector to the housing, a pin is integrally provided on the housing, and a flange is formed on the connector, and the pin is inserted into a hole provided in the flange. The connector is fixed to the housing by heating and pressing the pins.

In this way, in the conventional vehicle lighting device, the connector is fixed to the housing by heating the pins, so there are problems such as the inability to replace the assembly including the connector, such as the lamp socket, and the problem that the connector cannot be attached to the connector. There are problems such as a lack of versatility of the connector because a flange part must be formed, and an increase in assembly work due to heating and crushing the pins.

In view of the above-mentioned problems, the purpose of the present invention is to enable the connector to be freely attached and detached from the housing, without requiring any processing on the connector, and to prevent the connector from coming off due to vibrations of the vehicle. Therefore, it is an object of the present invention to provide a vehicle lamp that can improve reliability.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, the connector 1 used in the present invention consists of a connecting head 11 and a rear portion 12 that is narrower than the head 11.

The head 11 is formed into a substantially cylindrical square shape, and has a protrusion 11a on the negative side into which the lock claw 4a of the power supply connector 4 can be inserted, and a through hole 11 that engages with the lock claw 4a.
A locking portion 11A is formed by forming a lower side portion 11C, a bulging portion 11B is formed in the center, and a terminal 2 is provided inside.

The rear part 12 is continuous with the head part 11 and has a step part 1.
The wiring cord 3 is formed to be narrower than the head by a width of 1 e, and the wiring cord 3 is drawn out from the end thereof, and is formed in a square shape.

Note that 11 d in the figure indicates a portion facing the lock portion.

The lamp to which the connector 1 is attached has a bulb 9 inside the lamp chamber, which is made up of a front lens 5 and a housing 6, as shown in FIGS. 3 to 7, and a socket 7 to which the bulb 9 is attached. Connect the cord 3a connected to the positive side and the cord 3b connected to the ground side to the connector 1.
It is gripped on the terminal 2 of.

As is well known, the structure for holding the cords 3 a and 3 b in the terminal 2 is such that the terminal 2 is formed with a core wire gripping portion and an insulating coating gripping portion, and these gripping portions are used to hold the core wire of the cord and the insulation. The covering part is caulked and gripped.

The cylindrical part 8, which is the attachment part of the connector 1, is integrally formed on the rear surface of the housing 6 by resin molding, and has a substantially cylindrical shape as shown in FIG. 1, a notch recess 82 into which the lock part 11A is fitted into the side wall, a notch 83 extending over the entire length in the wall opposite to the notch recess 82, and a notch 83 extending over the entire length on the inner surface. The stepped portion 84 is formed to have a width approximately equal to the width of the stepped portion 11e, and the inner surface shape is approximately the same as the outer surface shape of the connector 1.

Therefore, when the connector 1 is inserted into the cylindrical portion 8 from the rear thereof, the outer surface of the connector 1 and the inner surface of the cylindrical portion 8 come into contact with each other, resulting in a gripped state, as shown in FIGS. 4 and 5.

Furthermore, the relationship between the lengths of the connector 1 and the cylindrical portion 8 in the axial direction is as shown in FIG. As shown in the figure, the depth H from the opening end surface of the opening 81 to the step 84 is H.
=h, and the depth L from the step 84 to the bottom of the notch 83 is L>l.

Therefore, when the connector 1 is inserted, the top surface of the head 11 of the connector 1 and the open end surface of the cylindrical portion 8 are aligned with each other in FIG.
As shown in the drawing, the notch 83 has a flat surface and a space 85 at the bottom of the notch 83 from which the cord 3 is led out.

Since the structure is as described above, in order to attach the connector 1 to the housing 6, the cord 3 connected to the socket 7 must be
a and 3 b into the notch 83 of the cylindrical portion 8, and as shown in FIG.
By inserting the rear part 12 of the connector 1 into the cylindrical part 8 in the direction of the arrow with the connector 1A facing the notch recess 82 of the cylindrical part 8, the lower side 11C of the lock part 11A is inserted into the notch recess 8.
2 and the outer surface of the connector 1 is inscribed in the inner surface of the cylindrical portion 8, whereby the connector 1 is gripped and attached.

At this time, since the bulging portion 11B of the head 11 of the connector 1 is firmly inscribed in the inner surface of the cylindrical portion 8, the connector 1 will not tilt laterally during or after installation.

Further, the connector 1 can be removed very easily by pinching the locking part 11A and the facing part 11d and pulling it out.

As described above, in the present invention, in a vehicle lamp in which a connector is assembled into a housing, the connector consists of a connection head having a locking portion with a power connector on the negative side, and a rear part narrower than the head. is provided with a cylindrical portion for gripping the connector, and the cylindrical portion has a notch extending over the entire length for inserting the wiring cord on one side, and only the locking portion of the connector is fitted on the other side. The connector is inserted into the cylindrical portion from the rear, the lock portion is fitted into the notch recess, and the wiring cord is led out from the lower part of the notch to connect the connector to the housing. Since the connector is attached to the housing, it is extremely easy to attach or detach the connector to the housing by inserting or pulling out the connector into the cylindrical portion, and thereby an assembly such as a socket integrated with the connector can be replaced.

Further, the connector does not require a flange portion for attachment, and assembly work such as heating the pins and attaching them can be reduced.

Furthermore, since the connector is held inside the cylindrical portion, it is possible to prevent mud and water from adhering to the connector, and it is possible to securely attach the connector without fear of it coming off due to vibration.

It should be noted that, as a matter of course, the present invention is not limited to the illustrated embodiment.

[Brief explanation of drawings]

Figure 1 is a perspective view showing the connector, Figure 2 is I of Figure 1.
-I line sectional view, Figure 3 is a bottom view of the present invention applied to a vehicle lamp, Figure 4 is a side view of Figure 3, partially taken in section along I■-■■ line, and Figure 5. The figure is a sectional view taken along the line III-III in Figure 3, Figure 6 is an explanatory diagram of connector insertion, and Figure 7 is an explanatory diagram of the assembled state. FIG. 1... Connector, 11... Connection head, 11A... Lock part, 12... Rear, 3... Wiring cord, 6...Housing, 8...Cylinder part, 83...Notch,
84...Notch recess.

Claims (1)

[Scope of utility model registration request] In a vehicle lamp in which a connector is assembled into a housing, the connector is made up of a connecting head having a locking part with a power connector on one side and a rear part narrower than the head, and the housing has a connector for gripping the connector. A cylindrical portion is provided, and the cylindrical portion has a notch extending over the entire length for inserting the wiring lard on one side, and a notch recess into which only the locking portion of the connector can fit on the other side. A vehicle characterized in that the connector is inserted into the cylindrical portion from the rear, the lock portion is fitted into the notch recess, and the wiring cord is led out from the lower part of the notch to attach the connector to the housing. Lighting equipment.