CN102097223A

CN102097223A - Reversing light switch assembly

Info

Publication number: CN102097223A
Application number: CN201010575589XA
Authority: CN
Inventors: 刘拴起; 何玉桃; 革照光
Original assignee: Chongqing Qingshan Industry Co Ltd
Current assignee: Chongqing Qingshan Industry Co Ltd; Chongqing Tsingshan Industrial Co Ltd
Priority date: 2010-12-07
Filing date: 2010-12-07
Publication date: 2011-06-15

Abstract

The invention discloses a reversing light switch assembly. The assembly comprises a splicing sheath, a plug assembly arranged in the right part of the splicing sheath, a return spring with left end adjoining with a pit in the middle of the right side of the plug assembly, a stepped contact with left end adjoining with the right end of the return spring, ring-shaped copper sheets arranged on the left part of the stepped contact, two contact pins arranged at the right side of the plug assembly and a reversing light housing provided with a stepped hole inside, wherein the end parts of the two contact pins correspond to or are contacted with the ring-shaped copper sheets; the outer walls at the left end part of the reversing light housing are in fit connection with the right inner walls of the splicing sheath; the left part of the stepped contact and the two contact pins adjoining with the two sides of the left part are arranged in a left big hole of the reversing light housing; and the right outer wall of the stepped contact is fit with a right small hole of the reversing light housing. The assembly is characterized in that O-shaped ferrules are arranged at the end parts of the two contact pins. The assembly has the following beneficial effects: the service life of the reversing light switch is more than doubled; and the change frequency of the reversing light switch assembly in the use process is reduced, thus lowering the maintenance costs of the enterprises and simultaneously reducing the troubles of the users.

Description

A kind of Reverse lamp switch assembly

Technical field

The present invention relates to automobile component, be specifically related to a kind of Reverse lamp switch assembly.

Background technology

The Reverse lamp switch assembly of existing automobile (no matter little car, lorry or car) is general, and what adopt is the Mechanical Contact formula, its internal structure is by the conductivity transmission signals of copper sheet, but because the mar proof of copper is relatively poor, the elasticity of copper sheet is relatively poor simultaneously, in use for some time, the situation of loose contact appears in Reverse lamp switch assembly inside easily, causes Reverse lamp switch inefficacy in reversing process.At present, most of car load factory is to change and handle the Reverse lamp switch assembly to the reversing lamp major measure of taking that lost efficacy.

Summary of the invention

The purpose of this invention is to provide a kind of Reverse lamp switch assembly, problem to be solved is because the signal transmission failure that wears no resistance and cause of material causes that then automobile does not have the reversing prompt facility.

A kind of Reverse lamp switch assembly of the present invention, comprise plug jacket, be located at the plug assembly in the plug jacket right part, the pit of left end plug assembly right side central is near return spring, the right-hand member of left end and return spring near the ladder contact, be located at the annular copper sheet on the ladder contact left part, be located at the contact pin that plug assembly right side and end are corresponding with annular copper sheet or contact, comprise that also an inside is provided with the reversing lamp housing of shoulder hole, the left part outer wall of this reversing lamp housing and the right part inwall of plug jacket are connected, the left part of ladder contact and with its both sides near contact pin be positioned at the macropore of reversing lamp housing left part, the outer wall of ladder contact right part cooperates with the aperture of reversing lamp housing right part, it is characterized in that: one " O " type snare is in the end of two contact pins, to guarantee after annular copper sheet and two contact pins wear and tear, still to keep excellent contact, make Reverse lamp switch assembly reliable operation, the life-span prolongs.

Described a kind of Reverse lamp switch assembly also comprises the sealing ring that is located at outside, reversing lamp housing middle part, and its effect is to prevent that transmission oil from leaking outside, and outside water infiltrates.

Operation principle of the present invention is achieved in that automobile is after hanging up reverse gear, ladder contact on the Reverse lamp switch assembly is in compressive state, is surrounded by annular copper sheet on the ladder contact, after the ladder contact is compressed certain stroke, the annular copper sheet contacts with two contact pins, promptly is in conducting state.After the extension through certain number of times reversed gear operation, ladder contact and annular copper sheet surface produced wearing and tearing, after wearing and tearing acquire a certain degree, the situation of loose contact can occur.Owing to, hold power tightly, make two contact pins can well contact all the time, to avoid owing to causing the loose contact phenomenon to take place after the copper sheet wearing and tearing with annular copper sheet by the elasticity of " O " type circle at a peripheral rubber-like " O " the type circle that increases of contact pin.

Beneficial effect of the present invention: prolonged the useful life of Reverse lamp switch, reached more than one times; Reduce the replacing in use of Reverse lamp switch assembly, both reduced the maintenance cost of enterprise, also reduced user's trouble simultaneously.

Description of drawings

Fig. 1 is a structural representation of the present invention.

Specific implementation

The present invention is further illustrated below in conjunction with accompanying drawing.

Referring to a kind of Reverse lamp switch assembly shown in Figure 1, comprise plug jacket 1, be located at the plug assembly 2 in the plug jacket right part, the pit of left end plug assembly right side central is near return spring 3, the right-hand member of left end and return spring near ladder contact 7, be located at the annular copper sheet 8 on the ladder contact left part, be located at the contact pin 9 that plug assembly right side and end are corresponding with annular copper sheet or contact, 10, comprise that also an inside is provided with the reversing lamp housing 4 of shoulder hole, the left part outer wall of this reversing lamp housing and the right part inwall of plug jacket are connected, the left part of ladder contact 7 and with its both sides near contact pin 9,10 are positioned at the macropore of reversing lamp housing left part, and the outer wall of ladder contact 7 right parts cooperates with the aperture of reversing lamp housing right part; One " O " type circle 5 is enclosed within the end of contact pin 9,10, to guarantee still to keep excellent contact after annular copper sheet and two contact pins wear and tear, makes Reverse lamp switch assembly reliable operation.

Also comprise the sealing ring 6 that is located at outside, reversing lamp housing 4 middle parts, its effect prevents that transmission oil from leaking outside, and outside water infiltrates.

The Reverse lamp switch assembly is fixed together by the casing of reversing lamp housing 4 and speed changer, the operator is after hanging reverse gear, ladder contact 7 is subjected to the pressure of actuator in the speed changer, move toward the left side, compression retracteding position spring 3, after reaching certain stroke, annular copper sheet 8 will contact with two contact pins 9,10, contact pin 9 and 10 is fixed by plug assembly 2,, go into path with after 10 contact at annular copper sheet 8 and contact pin 9, the Reverse lamp switch joint that is connected on the plug jacket 1 forms conducting, the vehicle backing lamp is bright, sends astern signal.When car gear shifting handle was got back to neutral position or other gear, under the effect of return spring 3, ladder contact 7 was got back to the normal position, and annular copper sheet 8 and two contact pins 9,10 disconnect, and the loop disconnects, and reversing lamp goes out.In this structure, can guarantee after annular copper sheet 8 and two contact pins 9,10 wear and tear, still can guarantee to form between them excellent contact by newly-increased " O " type circle 5.

Claims

1. Reverse lamp switch assembly, comprise plug jacket (1), be located at the plug assembly (2) in the plug jacket right part, the pit of left end plug assembly right side central is near return spring (3), the right-hand member of left end and return spring near ladder contact (7), be located at the annular copper sheet (8) on ladder contact (7) left part, be located at the contact pin (9 that plug assembly right side and end are corresponding with annular copper sheet or contact, 10), comprise that also an inside is provided with the reversing lamp housing (4) of shoulder hole, the left part outer wall of this reversing lamp housing and the right part inwall of plug jacket are connected, the left part of ladder contact (7) and with its both sides near contact pin (9,10) be positioned at the macropore of reversing lamp housing left part, the outer wall of ladder contact (7) right part cooperates with the aperture of reversing lamp housing right part, and it is characterized in that: one " O " type circle (5) is enclosed within two contact pins (9,10) end.

2. a kind of Reverse lamp switch assembly according to claim 1 is characterized in that: also comprise the sealing ring (6) that is located at outside, reversing lamp housing (4) middle part.