CN206574613U

CN206574613U - Bls

Info

Publication number: CN206574613U
Application number: CN201720257437.2U
Authority: CN
Inventors: 苏金勇
Original assignee: GUANGXI NANXING TECHNOLOGY Co Ltd
Current assignee: GUANGXI NANXING TECHNOLOGY Co Ltd
Priority date: 2017-03-16
Filing date: 2017-03-16
Publication date: 2017-10-20
Anticipated expiration: 2027-03-16

Abstract

The utility model discloses a kind of BLS, it is related to auto electric field of engineering technology, it includes the contact shoe that shell is stretched out in one end, the static contact electrically connected with wire is installed in the contact shoe, the contact shoe is fixed with the static contact inserted sheet being connected with the static contact, one end of the static contact inserted sheet is stretched out mutually welds outside the contact shoe with the wire, in the contact shoe insertion sealing ring, filled with the epoxy resin for closing the static contact inserted sheet and the wire welding position in the cavity that the sealing ring is constituted.The problem of the utility model solves contact and the low reliability of wire welding quality.

Description

BLS

Technical field

The utility model is related to auto electric field of engineering technology, especially a kind of BLS.

Background technology

BLS is that the translating cam working face driving push rod on automobile gearbox gearshift makees stretching motion, So that switching function is realized in contacting or disconnection, have free elongation when using, connect before idle stroke and over-pressed stroke The requirement of technical requirements and weatherability, and contact BLS requires that contact isolates with the lubricating oil of gearbox.It is existing The protected mode of BLS contact and wire weld a kind of be directly to lengthen contact shoe tail end ring-type is made, make weldering Connect joint embedment wherein, insert epoxy resin after welding, it has the disadvantage that needs are welded in a narrow space, because Observation operation is inconvenient and reduces the reliability of welding quality.The scheme that another BLS is used is first by epoxy resin Filled in switch contact with wire weld, then cover rubber cap and be protected by, it has the disadvantage that the viscosity of epoxy resin is difficult Obtain optimum value, it is too dilute to tangle, operation inconvenience, and viscosity too it is thick can cause in the future epoxy cure without elasticity, The protective effect of butt welding contact is not had.

Utility model content

The purpose of this utility model is to provide a kind of BLS, and this BLS can solve contact and wire The problem of reliability of welding quality is low.

In order to solve the above problems, the technical solution adopted in the utility model is：This BLS is stretched including one end Go out and the static contact electrically connected with wire be installed in the contact shoe of shell, the contact shoe, the contact shoe be fixed with it is described The static contact inserted sheet of static contact connection, one end of the static contact inserted sheet is stretched out mutually welds outside the contact shoe with the wire, In contact shoe insertion sealing ring, filled with closing the static contact inserted sheet and described lead in the cavity that the sealing ring is constituted The epoxy resin at wire bonding position.

In the technical scheme of above-mentioned BLS, more specifically technical scheme can also be：The sealing ring is moulded for PA6 Expect sealing ring.

Further, the elastic sealing film for isolating the contact shoe and push rod component, the bullet are provided with the shell Property diaphragm seal be pressed on by contact shoe on the step surface of the shell, the edge of the shell, which has, is fixed the contact The button side of seat.

Further, the moving contact that normally opened contact is constituted with the static contact is provided with the contact shoe, it is described dynamic tactile Head is fixed on movable contact block, and the movable contact block is provided with moving contact push rod, and the moving contact is set with back-moving spring, described The two ends of back-moving spring are connected with the contact shoe and movable contact block respectively, the moving contact push rod by back-moving spring with it is described Elastic sealing film is abutted against.

Further, the push rod component includes hollow push rod, one end of the hollow push rod be embedded be exposed to it is described Ball outside shell, the other end be provided with the push rod for promoting the moving contact push rod, the hollow push rod be provided with it is described The push rod spring that push rod is connected.

By adopting the above-described technical solution, the utility model has the advantages that compared with prior art：

1st, one end of static contact inserted sheet is stretched out outside contact shoe and wire is welded, and increases the welding of static contact inserted sheet and wire Operating space, convenient observation and operation, the reliability of welding quality are high；Contact shoe is set with sealing ring, the sky constituted in sealing ring Intracavitary directly fills the epoxy resin of closing welding position with the mode of filling, can suitably reduce the denseness of epoxy resin, make It can keep for a long time elasticity so that protect contact and wire weld will not sealing-off, improve the reliability of welding quality.

2nd, rubber cap is replaced with PA6 plastics sealing rings, ageing resistace is improved.

The 3rd, elastic sealing film spacing contact seat and push rod component, its good airproof performance, dependable performance are set；Technique is simple, into This is low.

4th, using the push rod component for inlaying ball, ball can be moved back and forth with push rod, both reduce friction, can be obtained again Obtain larger impulse stroke.

Brief description of the drawings

Fig. 1 is the structural representation of this BLS embodiment.

Fig. 2 is the sectional view in A-A directions in Fig. 1.

Embodiment

The utility model is described in further detail for embodiment below in conjunction with the accompanying drawings：

BLS shown in Fig. 1 and Fig. 2 includes push rod component 1, elastic sealing film 2, static contact component 3, sealing ring 5th, moving contact component 7 and shell 8, push rod component 1, static contact component 3, moving contact component 7 are in the through hole of shell 8；Top Bar assembly 1 is made up of the ball 1-1 in hollow push rod 1-2, push rod spring 1-3, pad 1-4, push rod 1-5, and ball 1-1 is embedding Outer end loaded on hollow push rod 1-2 is simultaneously exposed to outside shell 8, and inner in hollow push rod 1-2 installs push rod 1-5, push rod 1-5 tools Limited location boss, end face and the push rod spring 1-3 of positive stop lug boss are abutted against, and other end passes through hollow push rod 1-2 edges Riveting is closed up and compressed with pad 1-4 phases.Static contact component 3 is by contact shoe 3-1, two static contact inserted sheet 3-3 and is riveted on thereon Static contact 3-2 composition, contact shoe 3-1 is pushed by detaining the top edge of side riveted shell 8, makes its base by elastic sealing film 2 It is pressed on the step surface in shell 8, isolates push rod component 1 and contact shoe 3-1, so as to realize sealing.Moving contact component 7 is pacified In groove loaded on contact shoe 3-1, it is made up of movable contact push rod 7-3, movable contact block 7-2 and two moving contact 7-1, moving contact 7-1 is fixed on movable contact block 7-2, and moving contact push rod 7-3 is arranged at movable contact block 7-2 centers, and moving contact push rod 7-3 is set with Back-moving spring 6, the two ends of the back-moving spring 6 are connected with contact shoe 3-1 and movable contact block 7-2 respectively, and moving contact push rod 7-3 passes through Back-moving spring 6 is abutted against with elastic sealing film 2.For the ease of welding, the one of contact shoe 3-1 static contact inserted sheet 3-3 is fixed on End is stretched out mutually welds outside contact shoe 3-1 with wire 4, in contact shoe 3-1 insertion sealings ring 5, is filled in the cavity that sealing ring 5 is constituted Close static contact inserted sheet 3-3 and the epoxy resin of the welding position of wire 4.It is preferred that, sealing ring 5 is PA6 plastics sealing rings.

Push rod component 1, static contact component 3, moving contact component 7 after riveting in the hole of shell 8 is good, can be connected first Stroke, the detection for connecting the performance indications such as power, the qualified laggard welding sequence of row conductor 4, now two static contact inserted sheet 3-3 exposures Outside, periphery is not blocked, so welding lead 4 operates and observed all more convenient, is easily guaranteed that welding quality.After welding Sealing ring 5 is loaded onto, deployed epoxy resin is injected.Because filling cavity can be placed with opening up, therefore viscosity can be filled More particularly suitable epoxy resin without take into account epoxy resin too it is dilute lose control of one's feelings contact the problem of.Therefore product matter has been improved it Amount and productivity ratio.

In the course of work of BLS, before conducting, static contact 3-2 and the shape that moving contact 7-1 is normally opened contact State, after control stick promotes ball 1-1, ball 1-1 moves up push rod component 1, promotes elastic sealing film 2 to enter by push rod 1-5 And promoting moving contact component 7 to move up, moving contact 7-1 is contacted with static contact 3-2, circuit turn-on；If on control stick continues after conducting Move, then push rod spring 1-3 is compressed, and makes switch continue to tend to remain on.After the power revocation of control stick, back-moving spring 6 will Moving contact 7-1, static contact 3-2 are separated, circuitry cuts.

Claims

1. a kind of BLS, including one end are stretched out to be provided with the contact shoe of shell, the contact shoe and electrically connected with wire Static contact, it is characterised in that：The contact shoe is fixed with the static contact inserted sheet being connected with the static contact, and the static contact is inserted One end of piece is stretched out mutually welds outside the contact shoe with the wire, in the contact shoe insertion sealing ring, the sealing ring structure Into cavity in filled with the epoxy resin for closing the static contact inserted sheet and the wire welding position.

2. BLS according to claim 1, it is characterised in that：The sealing ring is PA6 plastics sealing rings.

3. BLS according to claim 1 or 2, it is characterised in that：Isolation is provided with the shell described tactile The elastic sealing film of point seat and push rod component, the elastic sealing film is pressed on the step surface in the shell by contact shoe On, the edge of the shell has the button side for being fixed the contact shoe.

4. BLS according to claim 3, it is characterised in that：It is provided with the contact shoe and the static contact The moving contact of normally opened contact is constituted, the moving contact is fixed on movable contact block, and the movable contact block is provided with moving contact push rod, The moving contact is set with back-moving spring, and the two ends of the back-moving spring are connected with the contact shoe and movable contact block respectively, institute Moving contact push rod is stated to abut against with the elastic sealing film by back-moving spring.

5. BLS according to claim 4, it is characterised in that：The push rod component includes hollow push rod, described One end of hollow push rod is embedded with the ball being exposed to outside the shell, and the other end is provided with the top for promoting the moving contact push rod The push rod spring being connected with the push rod is provided with bar, the hollow push rod.