CN202711964U - Electrical switch and moving contact used by same - Google Patents
Electrical switch and moving contact used by same Download PDFInfo
- Publication number
- CN202711964U CN202711964U CN 201220214202 CN201220214202U CN202711964U CN 202711964 U CN202711964 U CN 202711964U CN 201220214202 CN201220214202 CN 201220214202 CN 201220214202 U CN201220214202 U CN 201220214202U CN 202711964 U CN202711964 U CN 202711964U
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- China
- Prior art keywords
- moving contact
- fingertip
- rod
- thin neck
- neck section
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- Expired - Lifetime
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Abstract
The utility model relates to an electrical switch and a moving contact used by the same. The moving contact is provided with a thin neck segment rod body which is located between the upper end part and the lower end part and is thinner than the upper end part. Thus, when the electrical switch opens, an upper end contact finger can be pressed in the thin neck segment rod body under the effect of return spring, deformation of the upper end return spring is reduced, the corresponding force applied on the upper end contact finger by the return spring is reduced, the holding force applied on the moving contact by the upper end contact finger is reduced, the opening process of the moving contact is both labor-saving and reliable, and further the problem that the opening process of the moving contact undergoes negative interference as the holding force applied on the moving contact by contact fingers of the electrical switch in the prior art is lessened.
Description
Technical field
The utility model relates to the electric equipment technical field, relates in particular to a kind of electric switch, also relates to simultaneously the moving contact of this electric switch.
Background technology
Moving contact is the vitals of Cubicle Gas-Insulated Switchgear (GIS), and plays vital effect in isolating switch and earthed switch.
Because in moving contact and the motion process that fingertip contacts, electric current needs to flow to the lower end fingertip through moving contact from the upper end fingertip, finish the effect of conduction, the electric conductivity of moving contact is mainly reflected in two aspects: the firstth, and through-current capability, performance assessment criteria are the size of current that can effectively circulate; The secondth, resist electrodynamic ability, performance assessment criteria is that can fingertip effectively hold moving contact tightly under electrodynamic action.More than 2 comprehensively be embodied in the stability that moving contact contacts with fingertip.When contact stabilization, the through-current capability of moving contact is large, and it is strong to resist electrodynamic ability.
In order to satisfy above-mentioned requirement to moving contact and fingertip contact stabilization, general measure is the enclasping force that increases the fingertip upper spring, utilizes the larger spring of strength that fingertip is reliably contacted with conductor.But owing to common in the market isolation and earthed switch moving contact contour structures, nearly all be the entire body cylindrical structural.The columniform moving contact of the entire body of this structure after adopting the method that increases the spring enclasping force, can significantly improve the electric conductivity of moving contact, but when electric component needs separating brake, will have a negative impact.When moving contact carried out sub-switching operation, fingertip was larger to the enclasping force of moving contact, hindered the motion of moving contact separating brake.When enclasping force is excessive, can interfere the kinetic characteristic of moving contact, when serious even can cause the separating brake failure, cause the consequences such as equipment fault.In summary, fingertip acts on the enclasping force of moving contact, although can make its reliable contact, can interfere the kinetic characteristic of moving contact when sub-switching operation.
The utility model content
The utility model proposes a kind of separating brake reliable electric switch that moves, the moving contact of this electric switch also is provided simultaneously, and the moving contact separating brake motion that the fingertip that is intended to reduce electric switch in the prior art causes greatly the enclasping force of moving contact is by the problem of the bad interference of fingertip.
The technical scheme of electric switch of the present utility model is as follows:
A kind of electric switch, comprise along the vertical direction the moving contact of the column of extending and be used for when closing a floodgate, under action of reset spring, holding moving contact tightly with the upper and lower end fingertip that can radially actuate by the moving contact mutual conduction, the bottom that described moving contact has for the upper end that cooperates with the upper end fingertip when closing a floodgate and is used for cooperating with the lower end fingertip when closing a floodgate, described moving contact has the thin thin neck section body of rod in ratio upper end that is between the upper and lower end.
The described thin neck section body of rod is narrower than the bottom of described moving contact.
Pass through the transition of chamfering tangent plane between the bottom of the described thin neck section body of rod and moving contact.
The technical scheme of the moving contact of electric switch of the present utility model is as follows:
A kind of moving contact of electric switch, the bottom that described moving contact has for the upper end that cooperates with the upper end fingertip when closing a floodgate and is used for cooperating with the lower end fingertip when closing a floodgate, described moving contact has the thin thin neck section body of rod in ratio upper end that is between the upper and lower end.
The described thin neck section body of rod is narrower than the bottom of described moving contact.
Pass through the transition of chamfering tangent plane between the bottom of the described thin neck section body of rod and moving contact.
Moving contact of the present utility model has and is in, the thin thin neck section body of rod in ratio upper end between the bottom, so that electric switch is when separating brake, the upper end fingertip can be pushed down in the effect of back-moving spring in this thin neck section body of rod, so that the deflection of upper end back-moving spring reduces, the corresponding active force of action of reset spring on the fingertip of upper end reduces, thereby so that the enclasping force that the upper end fingertip acts on the moving contact reduces, so that the separating brake process of moving contact is not only laborsaving but also reliable, and then the moving contact separating brake motion that the fingertip that reduces electric switch in the prior art causes greatly the enclasping force of moving contact is by the problem of the bad interference of fingertip.
Description of drawings
Fig. 1 is the structural representation of the "on" position of embodiment of the present utility model;
Fig. 2 is the structural representation of the gate-dividing state of embodiment of the present utility model;
Fig. 3 is the structural representation of moving contact among Fig. 1 and Fig. 2;
Fig. 4 is the partial enlarged drawing at A place among Fig. 3;
Fig. 5 is the partial enlarged drawing at B place among Fig. 3.
Embodiment
The embodiment of electric switch of the present utility model: extremely shown in Figure 5 such as Fig. 1, this electric switch comprises along the vertical direction the moving contact 1 of the column of extending and is used for holding tightly moving contact 1 with can radially actuate by moving contact 1 mutual conduction when closing a floodgate under back-moving spring 2 effects, lower end fingertip 3,4, wherein, the bottom 1-2 that moving contact 1 has for the upper end 1-1 that cooperates with upper end fingertip 3 when closing a floodgate and is used for cooperating with lower end fingertip 4 when closing a floodgate, offer the thin neck section body of rod 1-3 that slips into for upper end fingertip 3 when the separating brake of being used for to the inner recess of moving contact 1 on the periphery at the middle part of moving contact 1, this thin neck section body of rod 1-3 is narrower than the upper of moving contact 1, bottom 1-1,1-2, and pass through chamfering tangent plane 1-4 transition between the upper end 1-1 of thin neck section body of rod 1-3 and moving contact 1 and between the bottom 1-2 of thin neck section body of rod 1-3 and moving contact 1.
The utility model in use, when moving contact 1 is in "on" position, upper end fingertip 3 cooperates with the upper end 1-1 of moving contact 1, lower end fingertip 4 cooperates with the bottom 1-2 of moving contact 1, the enclasping force of back-moving spring 2 can be that moving contact 1 effectively contacts with upper and lower end fingertip 3,4, improves electric conductivity; When moving contact 1 carries out the separating brake motion, upper end fingertip 3 will be pressed under the effect of back-moving spring 2 in the thin neck section body of rod 1-3 on the moving contact 1, because thin neck section body of rod 1-3 is to the inner recess of moving contact 1, thereby the deflection of the back-moving spring 2 of assembling will correspondingly reduce on the upper end fingertip 3, the enclasping force that corresponding back-moving spring 2 acts on the fingertip 3 of upper end will reduce, and because the upper end 1-1 of thin neck section body of rod 1-3 and moving contact 1 is by chamfering tangent plane 1-4 transition, therefore the separating brake of finishing that moving contact 1 can be reliable and stable moves, so that this moving contact 1 of this electric switch has simple in structure and advantage reliable in action, both can satisfy the requirement of moving contact 1 electric conductivity, the kinetic characteristic in the time of can optimizing moving contact 1 separating brake again.
In the above-described embodiments, the thin neck section body of rod is the annular groove that the middle part of moving contact is offered, and in other embodiments, this annular groove also can extend to the bottom of moving contact, and namely moving contact is Step Shaft, and the upper end diameter of moving contact is greater than lower end diameter; Perhaps, the thin neck section body of rod offer on can also the periphery for moving contact with each upper end fingertip one to one along the axially extended linear groove of moving contact; Perhaps, all offer the thin neck section body of rod in the bottom at the middle part of moving contact, thereby avoid the lower end fingertip to the interference of moving contact separating brake motion.
In the above-described embodiments, the upper/lower terminal section of the thin neck section body of rod and moving contact is all by the transition of chamfering tangent plane, and in other embodiments, the transition of right angle platform terrace or rounded corner surface blending also can be passed through in the up and down two ends of the thin neck section body of rod and moving contact.
The embodiment of moving contact of the present utility model: as described in Fig. 1 to Fig. 5, in the above-described embodiments, describe in detail about the concrete structure of moving contact, therefore repeat no more in the present embodiment.
Claims (6)
1. electric switch, comprise along the vertical direction the moving contact of the column of extending and be used for when closing a floodgate, under action of reset spring, holding moving contact tightly with the upper and lower end fingertip that can radially actuate by the moving contact mutual conduction, the bottom that described moving contact has for the upper end that cooperates with the upper end fingertip when closing a floodgate and is used for cooperating with the lower end fingertip when closing a floodgate, it is characterized in that: described moving contact has the thin thin neck section body of rod in ratio upper end that is between the upper and lower end.
2. electric switch according to claim 1, it is characterized in that: the described thin neck section body of rod is narrower than the bottom of described moving contact.
3. electric switch according to claim 1 and 2 is characterized in that: pass through the transition of chamfering tangent plane between the bottom of the described thin neck section body of rod and moving contact.
4. the moving contact of an electric switch, the bottom that described moving contact has for the upper end that cooperates with the upper end fingertip when closing a floodgate and is used for cooperating with the lower end fingertip when closing a floodgate, it is characterized in that: described moving contact has the thin thin neck section body of rod in ratio upper end that is between the upper and lower end.
5. the moving contact of electric switch according to claim 4, it is characterized in that: the described thin neck section body of rod is narrower than the bottom of described moving contact.
6. it is characterized in that according to claim 4 or the moving contact of 5 described electric switches: between the bottom of the described thin neck section body of rod and moving contact by the transition of chamfering tangent plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220214202 CN202711964U (en) | 2012-05-14 | 2012-05-14 | Electrical switch and moving contact used by same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220214202 CN202711964U (en) | 2012-05-14 | 2012-05-14 | Electrical switch and moving contact used by same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202711964U true CN202711964U (en) | 2013-01-30 |
Family
ID=47592243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220214202 Expired - Lifetime CN202711964U (en) | 2012-05-14 | 2012-05-14 | Electrical switch and moving contact used by same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202711964U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201014A (en) * | 2013-08-22 | 2014-12-10 | 国家电网公司 | Moving contact and moving end component of quick-closing switch using the same |
| CN108305799A (en) * | 2017-01-11 | 2018-07-20 | 进联电子科技(上海)有限公司 | Switching device structure-improved |
| CN108461321A (en) * | 2018-03-27 | 2018-08-28 | 国网山东省电力公司郓城县供电公司 | A kind of dual power supply switching protection |
-
2012
- 2012-05-14 CN CN 201220214202 patent/CN202711964U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201014A (en) * | 2013-08-22 | 2014-12-10 | 国家电网公司 | Moving contact and moving end component of quick-closing switch using the same |
| CN104201014B (en) * | 2013-08-22 | 2016-09-14 | 国家电网公司 | A kind of moving contact and the rapid closing switch moved end assembly of this moving contact of use |
| CN108305799A (en) * | 2017-01-11 | 2018-07-20 | 进联电子科技(上海)有限公司 | Switching device structure-improved |
| CN108305799B (en) * | 2017-01-11 | 2022-04-12 | 进联电子科技(上海)有限公司 | Improved structure of switch device |
| CN108461321A (en) * | 2018-03-27 | 2018-08-28 | 国网山东省电力公司郓城县供电公司 | A kind of dual power supply switching protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130130 |
|
| CX01 | Expiry of patent term |