CN209418335U - Normally opened/normally closed big frictional reversing light switch of contacting surface - Google Patents
Normally opened/normally closed big frictional reversing light switch of contacting surface Download PDFInfo
- Publication number
- CN209418335U CN209418335U CN201821500429.7U CN201821500429U CN209418335U CN 209418335 U CN209418335 U CN 209418335U CN 201821500429 U CN201821500429 U CN 201821500429U CN 209418335 U CN209418335 U CN 209418335U
- Authority
- CN
- China
- Prior art keywords
- light switch
- reversing light
- contact
- normally
- contacting surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of normally opened/normally closed big frictional reversing light switch of contacting surface, it solves the problems, such as former reversing light switch contact chip by increasing contact chip and contacting the contact area of ring and contacts ring because metal electricity ablation caused by electric arc and mechanical friction galling occur and cause switch contact bad, reversing light switch is set, in good energized state, greatly to extend the service life of reversing light switch under long-time service state.
Description
Technical field
The utility model relates to a kind of normally opened/normally closed big frictional reversing light switch of contacting surface.
Background technique
Currently, frictional reversing light switch be generally divided into open type (contact chip and contact ring are usually in separated position) with
Closed type (contact chip and contact ring be usually in contact condition), because circuit load can generate electrical fire in the action process of switch
The contact portion metal of flower, contact chip and ring shaped contact ring can lead to continuous loss and the machine of metal material because of the ablation of electric spark
Tool abrasion occur contact portion metal loss and there is poor contact, so as to cause switch the normal push action of mandril core also without
Method makes the normal on-off of switching circuit and fails, and service life has limitation.
Utility model content
The purpose of the utility model is to overcome above-mentioned deficiencies, and provide the friction of a kind of enlarged contact piece and contact ring
Area and avoid the occurrence of contact chip and contact ring contact portion metal fast electric ablation and abrasion and lead to switch failure
The frictional reversing light switch of big contacting surface.
The purpose of this utility model is realized by following technical solution: normally opened/normally closed big contacting surface of one kind is frictionally moved backward
Lamp switch, including shell, mandril core, plastics push rod component, spring, seal washer and base assembly are set in plastics push rod component
There is square contact ring, seal washer is equipped between shell and base assembly, bullet is equipped between plastics push rod component and base assembly
Spring, plastics push rod component are equipped with contact chip, the contact ring being arranged on the contact chip and push rod component being arranged on base assembly it
Between be normally opened or normally off.When mandril core is acted according to need of work, it will appear electric spark in the moment that circuit is connected,
There is electric ablation to act on the contact portion metal of contact chip and contact ring.Due to using square contact ring, electric spark ablation point
Other metals put can still play the role of normal ON circuit after there is metal loss；Simultaneously because increasing contact friction
Area reduces the pressure on friction single-point, and solve existing reversing light switch ring shaped contact ring and contact chip friction can only
Single-contact and all pressure concentrate on causing contact portion metal occur in electric ablation and mechanical friction situation on friction point
The problem of reversing light switch circuit is not turned on after lower a large amount of losses, extends the service life of reversing light switch.
After the utility model structure, the electric spark that reversing light switch interior contact piece generates when contacting with contact ring is made
At metal loss the bulk life time of switch will not be had a direct impact, while increase friction area reduce on friction point
Pressure, contact chip and the abrasion of contact portion for contacting ring be mitigated, and shape is being used for a long time in the performance for allowing for switch in this way
It is kept under state good.Therefore, the utility model compared with prior art, have work times it is more, be powered well, long service life
The advantages of.
Detailed description of the invention
The utility model is described in further detail with embodiment with reference to the accompanying drawing.
Fig. 1 is normally opened/normally closed big frictional reversing light switch structural schematic diagram of contacting surface of the utility model.
Fig. 2 is the Section View of the contact chip and the cooperation of square contact ring in Fig. 1.
Specific embodiment
Referring to figs. 1 to Fig. 2 it is found that normally opened/normally closed big frictional reversing light switch of contacting surface of the utility model, including shell
(1), mandril core (2), plastics push rod component (3), spring (6), seal washer (7), base assembly (8), plastics push rod component (3)
It is equipped with contact ring (4), base assembly (8) is equipped with contact chip (5), between plastics push rod component (3) and base assembly (8)
Equipped with spring (6), seal washer (7) are equipped between shell (1) and base assembly (8), the contact ring in plastics push rod component (3)
It (4) is normally open between the contact chip (5) and on base assembly (8) it may also be normally off, passes through pressing mandril core
(2) switching of switching circuit on-state can be achieved, the quantity of the contact chip (5) on the base assembly (8) is multipair (more
It is a).When mandril core is pressed by external force, plastics push rod component is moved toward base assembly direction, in the moment meeting that circuit is connected
There is electric spark, there is electric ablation to act on the contact portion metal of contact chip and contact ring.Due to using square contact ring, electricity
Other metals put can still play the role of normal ON circuit after metal loss occurs in spark ablation point；Simultaneously because increasing
Contact friction area reduces the pressure on friction single-point, solves existing reversing light switch ring shaped contact ring and contact chip
Friction can only single-contact and all pressure concentrate on causing contact portion metal occur in electric ablation and machine on friction point
The problem of reversing light switch circuit is not turned on after being largely lost under tool friction condition, extend reversing light switch uses the longevity
Life.
Claims (2)
1. a kind of normally opened/normally closed big frictional reversing light switch of contacting surface, including shell (1), mandril core (2), plastics push rod component
(3), spring (6), seal washer (7), base assembly (8), plastics push rod component (3) are equipped with contact ring (4), base assembly
(8) contact chip (5) are equipped with, spring (6), shell (1) and pedestal is equipped between plastics push rod component (3) and base assembly (8)
Seal washer (7) are equipped between component (8), contact ring (4) contact on base assembly (8) in plastics push rod component (3)
It is normally opened/normally off between piece (5), it is characterised in that: what is be arranged in the plastics push rod component (3) of the reversing light switch connects
It is rectangular for touching ring (4).
2. normally opened/normally closed big frictional reversing light switch of contacting surface as described in claim 1, it is characterised in that: plastics mandril group
Part (3) is fabricated to same rectangular with set contact ring (4) thereon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821500429.7U CN209418335U (en) | 2018-09-08 | 2018-09-08 | Normally opened/normally closed big frictional reversing light switch of contacting surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821500429.7U CN209418335U (en) | 2018-09-08 | 2018-09-08 | Normally opened/normally closed big frictional reversing light switch of contacting surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209418335U true CN209418335U (en) | 2019-09-20 |
Family
ID=67930414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821500429.7U Expired - Fee Related CN209418335U (en) | 2018-09-08 | 2018-09-08 | Normally opened/normally closed big frictional reversing light switch of contacting surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209418335U (en) |
-
2018
- 2018-09-08 CN CN201821500429.7U patent/CN209418335U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190920 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |