CN214753425U

CN214753425U - Brake lamp switch

Info

Publication number: CN214753425U
Application number: CN202120573056.1U
Authority: CN
Inventors: 刘敏; 尹亮; 黄乐如; 陈前
Original assignee: WENZHOU TIANQIU ELECTRICAL CO Ltd
Current assignee: WENZHOU TIANQIU ELECTRICAL CO Ltd
Priority date: 2021-03-19
Filing date: 2021-03-19
Publication date: 2021-11-16
Anticipated expiration: 2031-03-19

Abstract

The utility model relates to a vehicle brake system component, in particular to a brake lamp switch, which comprises a shell, a push rod arranged in the shell in a sliding way and a gland positioned in the shell, wherein a first spring is sleeved on the push rod, one end of the first spring is connected on the push rod, the other end is connected on the gland, a through hole for the push rod to pass through is arranged on the gland, a contact piece seat, a positioning seat and a base are sequentially arranged in the shell, a first movable contact piece and a second movable contact piece are connected on the contact piece seat, a second spring is arranged between the contact piece seat and the positioning seat, two groups of connecting terminals are arranged on the base and are respectively a first connecting terminal and a second connecting terminal, the first movable contact piece is provided with a spring piece end which is in normally open fit with the first connecting terminal, the second movable contact piece is provided with a normally closed contact which is in normal close fit with the second connecting terminal, the push rod is linked with the first movable contact piece and the second movable contact piece through the contact piece seat.

Description

Brake lamp switch

Technical Field

The utility model relates to a vehicle braking system part, especially a stop lamp switch.

Background

The automobile brake lamp switch is an important part of an automobile, and has the main functions of controlling the brake lamp of the automobile to be turned on or off, providing an ECU signal and judging whether the automobile has brake action or not, so that the functions of vehicle oiling and constant-speed cruising are limited, and accidents caused by the problem of vehicle braking are prevented, so that the reliability of the switch is particularly important.

Present brake light switch mainly is the single line, can not satisfy whole car functional requirement, to a small amount of current double-line brake light switches in the market, because of structural constraint, signal abnormity scheduling problem often appears in the use, current double-circuit brake light switch has a set of contact to bumping PCB contact in use for the double contact and produces the spring easily, leads to the signal to lose, leaves over debris easily in PCB board welding process simultaneously and leads to the functional failure on the contact surface. The internal contact is adopted to contact with the circuit board, the production process is difficult to control, and the welding of the circuit board is difficult to control, so that the reliability is poor, and the whole vehicle requirement of an automobile manufacturer is difficult to meet.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of prior art, the utility model provides a stop lamp switch, two sets of circuits adopt different contact modes, and a set of contact is to bumping the formula contact, and another a set of shell fragment slidingtype contact has been guaranteed reliable contact performance.

In order to realize the purpose, the utility model discloses a technical scheme is: a brake lamp switch comprises a shell, a push rod arranged in the shell in a sliding way and a gland positioned in the shell, the push rod is sleeved with a first spring, one end of the first spring is connected with the push rod, the other end of the first spring is connected with the press cover, the pressure cover is provided with a through hole for the push rod to pass through, the shell is internally provided with a contact piece seat, a positioning seat and a base in sequence, the contact piece seat is connected with a first movable contact piece and a second movable contact piece, a second spring is arranged between the contact piece seat and the positioning seat, the base is provided with two groups of connecting terminals which are respectively a first connecting terminal and a second connecting terminal, the first movable contact piece is provided with a spring piece end which is in normally open fit with the first wiring terminal, the second movable contact piece is provided with a contact which is in normally closed fit with the second wiring terminal, and the push rod is linked with the first movable contact piece and the second movable contact piece through the contact piece seat.

Among the above-mentioned technical scheme, first movable contact spring and first binding post adopt shell fragment and binding post sliding contact, and second movable contact spring and second binding post adopt the contact to bump the contact with binding post, avoid two sets of formula contacts that bump contact production contact bounce, lead to the unstable phenomenon of switching signal, get rid of PCB, avoid leading to the phenomenon that the contact is not good and the contact bounce leads to the signal to lose because of debris, use the reliability better.

As a further setting of the utility model, first movable contact spring is the arch, the both ends of first movable contact spring are relative setting the spring plate end, the outside of spring plate end is provided with the contact site that outside arch can contradict with first binding post.

In the technical scheme, the first movable contact spring is arched, certain elastic force is arranged at two ends of the first movable contact spring, the first wiring terminal is positioned at the outer side of the spring piece end, and the spring piece end is stably contacted with the first wiring terminal through the elastic force.

As a further arrangement of the present invention, the contact portion is formed by partially forming an arch shape at the end of the first movable contact piece, and the outer surface thereof is a smooth arc surface.

Among the above-mentioned technical scheme, the outside surface of contact site is the smooth arc, is for the convenience slides, avoids the part wearing and tearing to influence the contact.

As a further setting of the utility model, first movable contact spring is located the top of second movable contact spring, be provided with the extension rod that supplies second movable contact spring cover to establish on the contact piece, the second movable contact spring can follow the axial of extension rod and slide, be provided with the third spring between second movable contact spring and the base, the one end butt of third spring is on the second movable contact spring, and other end butt is on the base, the second movable contact spring is connected with second binding post contact under the drive of third spring, be provided with on the contact piece seat can contradict with the second movable contact spring under the drive of push rod and order about the conflict portion of second movable contact spring and second binding post disconnection.

In the technical scheme, the second movable contact spring is abutted to the second wiring terminal under the driving of the third spring, when the push rod is pressed, the abutting part moves towards the second movable contact spring under the pushing of the push rod and abuts against the second movable contact spring to overcome the elastic force of the third spring, so that the second movable contact spring is disconnected from the second wiring terminal, the push rod is released, and the second movable contact spring is abutted to the second wiring terminal again under the driving of the third spring.

As the utility model discloses a further setting, first movable contact spring is fixed on the contact piece seat through a fixed block, the fixed block cover is established on the extension rod, the lower extreme of fixed block has one and is annular sleeve pipe and constitute conflict portion.

Among the above-mentioned technical scheme, first movable contact spring passes through the fixed block and stably connects on the contact piece seat, and the fixed block is the working of plastics, avoids first movable contact spring and second movable contact spring to switch on, plays isolated effect, and conflict portion is the annular sleeve pipe, can evenly contact with the second movable contact spring, and two contacts of guarantee second movable contact spring switch on with the contact of second binding post simultaneously, guarantee the stability of circuit.

As a further configuration of the present invention, the second springs are at least two and distributed on opposite sides of the contact piece seat.

Among the above-mentioned technical scheme, the quantity of second spring is a plurality of, and the guarantee has sufficient power that resets, realizes fast switch-over, improves switching efficiency, avoids producing the spark.

As a further setting of the utility model, second binding post is 7 fonts, the contact of second movable contact spring switches on with the lower surface butt of the horizontal portion of second binding post, the inboard butt that sets up with the contact portion relatively on contact portion and the first binding post switches on.

Among the above-mentioned technical scheme, first binding post is two for relative setting, and second binding post is 7 fonts, makes things convenient for the overall arrangement to realize the contact and to bumping the formula contact, and first binding post can be 1 font also can be other dysmorphias, and is rationally distributed, simple structure.

The present invention will be further described with reference to the accompanying drawings.

Drawings

FIG. 1 is an exploded view of the structure of an embodiment of the present invention;

FIG. 2 is a front view of the structure of the embodiment of the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

fig. 4 is a sectional view taken along line B-B of fig. 2.

Detailed Description

The embodiment of the utility model is shown in fig. 1-4, a brake light switch, which comprises a shell 1, a push rod 2 arranged in the shell 1 in a sliding way and a gland 3 arranged in the shell 1, wherein the push rod 2 is sleeved with a first spring 21, one end of the first spring 21 is abutted on a convex ring 22 arranged on the outer peripheral surface of the push rod 2, the other end is abutted on the gland 3, the gland 3 is provided with a through hole 31 for the push rod 2 to pass through, a contact sheet seat 4, a positioning seat 5 and a base 6 are arranged in the shell 1 in sequence, the contact sheet seat 4 is connected with a first movable contact sheet 41 and a second movable contact sheet 42, a second spring 43 is arranged between the contact sheet seat 4 and the positioning seat 5, two groups of connecting terminals are arranged on the base 6 and are respectively a first connecting terminal 61 and a second connecting terminal 62, the first movable contact sheet 41 is provided with a spring sheet end 411 which is normally open matched with the first connecting terminal 61, the second movable contact piece 42 has a contact 421 forming a normally closed contact with the second connection terminal 62, and the push rod 2 is linked with the first movable contact piece 41 and the second movable contact piece 42 through the contact piece holder 4. First movable contact spring 41 adopts shell fragment and binding post sliding contact with first binding post 61, and second movable contact spring 42 adopts the contact to bump with binding post with second binding post 62 and contacts, avoids two sets of formula contacts that bump contact production contact bounce, leads to the unstable phenomenon of switching signal, gets rid of PCB, avoids leading to the phenomenon that the contact is not good and the contact bounce leads to the signal to lose because of debris, and the use reliability is better.

The first movable contact piece 41 is arched, the two ends of the first movable contact piece 41 are the opposite spring piece ends 411, and the outer side of the spring piece ends 411 is provided with a contact part 4111 which protrudes outwards and can be abutted against the first wiring terminal 61. The first moving contact 41 is arched, and both ends of the first moving contact have a certain elastic force, the first connection terminal 61 is located outside the spring piece end 411, and the elastic force makes the spring piece end 411 and the first connection terminal 61 stably contact.

The contact portion 4111 is formed by the end portion of the first movable contact piece 41 being partially formed in an arch shape, and the outer surface thereof is formed in a smooth arc surface. The outer side surface of the contact portion 4111 is smooth and arc-shaped, so that sliding is facilitated, and contact is prevented from being affected by abrasion of components.

The first movable contact piece 41 is located above the second movable contact piece 42, an extension rod 44 is provided on the contact piece for the second movable contact piece 42 to be sleeved on, the second movable contact piece 42 can slide along the axial direction of the extension rod 44, a third spring 45 is provided between the second movable contact piece 42 and the base 6, one end of the third spring 45 abuts against the second movable contact piece 42, the other end of the third spring abuts against the base 6, the second movable contact piece 42 is in contact connection with the second connection terminal 62 under the driving of the third spring 45, and an abutting part 46 which can abut against the second movable contact piece 42 to disconnect the second movable contact piece 42 from the second connection terminal 62 under the driving of the push rod 2 is provided on the contact piece seat 4. The second movable contact spring 42 is abutted against the second wiring terminal 62 under the driving of the third spring 45, when the push rod 2 is pressed, the abutting part 46 moves towards the second movable contact spring 42 under the pushing of the push rod 2 and abuts against the second movable contact spring 42 to overcome the elastic force of the third spring 45, so that the second movable contact spring 42 is disconnected from the second wiring terminal 62, the push rod 2 is released, the second movable contact spring 42 is abutted against and conducted with the second wiring terminal 62 again under the driving of the third spring 45, and the first spring, the second spring 43 and the third spring 45 are all compression springs or disc springs or tension springs, so that the structure is simple and the installation is convenient.

The first moving contact 41 is fixed on the contact seat 4 through a fixing block 47, the fixing block 47 is sleeved on the extension rod 44, and the lower end of the fixing block 47 is provided with an annular sleeve to form the interference part 46. The first movable contact spring 41 is stably connected to the contact spring seat 4 through the fixing block 47, the fixing block 47 is a plastic part, the first movable contact spring 41 is prevented from being conducted with the second movable contact spring 42, an isolation effect is achieved, the abutting portion 46 is an annular sleeve and can be in uniform contact with the second movable contact spring 42, two contacts of the second movable contact spring 42 are guaranteed to be simultaneously in contact conduction with the second wiring terminal 62, and stability of a circuit is guaranteed.

At least two second springs 43 are disposed on opposite sides of the contact base 4. The quantity of second spring 43 is a plurality of, and the guarantee has sufficient restoring force, realizes fast switch-over, improves switching efficiency, avoids producing the spark.

The second terminal 62 is shaped like a letter 7, the contact of the second movable contact 42 is in contact with the lower surface of the lateral portion of the second terminal 62, and the contact portion 4111 is in contact with the inner side of the first terminal 61 opposite to the contact portion 4111. First binding post 61 is two relative settings, and second binding post 62 is 7 fonts, makes things convenient for the overall arrangement to realize the contact and to bumping the formula contact, and first binding post 61 can be 1 font also can be other dysmorphias, and is rationally distributed, simple structure.

The upper end of the outer part of the shell 1 is connected with a fastening screw for fastening and installing a client, a push rod 2 is arranged in the shell 1, a first spring 21 is arranged at the lower end part of the push rod 2, the upper end part of the push rod extends out of the shell 1, the end part of the first spring 21 is limited on a gland 3, a contact piece seat 4 is arranged in the

gland

3, 2 second springs 43 and a first movable contact piece 41 are arranged on the contact piece seat 4, one end of each second spring 43 is arranged on a positioning column 51 of the positioning seat 5, and the positioning seat 5 and the base 6 are assembled together; two first connecting terminals 61 and two second connecting terminals 62 are respectively installed on the base 6, wherein the second movable contact 42 is bridged with the two second connecting terminals 62, the first movable contact 41 is in sliding contact with the two first connecting terminals 61, the extension rod 44 is used as an extension part of the push rod 2 to pass through a hole on the second movable contact 42, the base 6 is buckled with the shell 1 to ensure that parts in the switch are assembled in place, when the push rod 2 is in a free state, the two second connecting terminals 62 are connected (1-3 feet are connected), and when the push rod is pressed for more than 21.5mm, the second movable contact 42 is separated from the two second connecting terminals 62 (1-3 feet are disconnected), at the moment, the first movable contact 41 slides to be connected with the first connecting terminals 61 (2-4 feet are connected), so that the switching of a switching circuit is realized. This brand-new structure double-circuit stop lamp switch can switch the stroke according to two sets of circuit of different demands adjustment, also can increase or change different connectors according to customer's demand and conveniently assemble the use, and its structural reliability is high.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations and positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The utility model discloses do not confine the above-mentioned embodiment to, the general technical personnel in this field can adopt other multiple embodiments to implement according to the utility model discloses a, perhaps all adopt the utility model discloses a design structure and thinking do simple change or change, all fall into the utility model discloses a protection scope.

Claims

1. The utility model provides a stop lamp switch, includes shell, slides and sets up the push rod in the shell and be located the gland of shell, the cover is equipped with first spring on the push rod, the one end of first spring is connected on the push rod, and the other end is connected on the gland, be provided with the through-hole that supplies the push rod to pass on the gland, its characterized in that: the shell is internally and sequentially provided with a contact piece seat, a positioning seat and a base, the contact piece seat is connected with a first movable contact piece and a second movable contact piece, a second spring is arranged between the contact piece seat and the positioning seat, the base is provided with two groups of wiring terminals which are respectively a first wiring terminal and a second wiring terminal, the first movable contact piece is provided with a spring piece end which forms normally open matching with the first wiring terminal, the second movable contact piece is provided with a contact which forms normally closed matching with the second wiring terminal, and the push rod is linked with the first movable contact piece and the second movable contact piece through the contact piece seat.

2. The stop lamp switch of claim 1, wherein: the first movable contact spring is arched, the two ends of the first movable contact spring are oppositely arranged spring ends, and the outer side of each spring end is provided with a contact part which protrudes outwards and can be abutted against the first wiring terminal.

3. The stop lamp switch according to claim 2, wherein: the contact part is formed by the end part of the first movable contact piece in an arched shape, and the outer surface of the contact part is a smooth cambered surface.

4. The stop lamp switch according to claim 1, 2 or 3, wherein: the first movable contact piece is located above the second movable contact piece, an extension rod for sleeving the second movable contact piece is arranged on the contact piece, the second movable contact piece can slide along the axial direction of the extension rod, a third spring is arranged between the second movable contact piece and the base, one end of the third spring is abutted to the second movable contact piece, the other end of the third spring is abutted to the base, the second movable contact piece is in contact connection with the second wiring terminal under the driving of the third spring, and a contact part which can be abutted to the second movable contact piece under the driving of the push rod to drive the second movable contact piece to be disconnected from the second wiring terminal is arranged on the contact piece seat.

5. The stop lamp switch according to claim 4, wherein: the first movable contact spring is fixed on the contact spring seat through a fixing block, the fixing block is sleeved on the extension rod, and the lower end of the fixing block is provided with an annular sleeve to form the abutting part.

6. The stop lamp switch according to claim 2 or 3, wherein: the number of the second springs is at least two, and the second springs are distributed on two opposite sides of the contact piece seat.

7. The stop lamp switch of claim 6, wherein: the second wiring terminal is 7-shaped, the contact of the second movable contact spring is in butt connection with the lower surface of the transverse part of the second wiring terminal, and the contact part is in butt connection with the inner side, opposite to the contact part, of the first wiring terminal.