CN203931850U - Novel control and protective switch contact system - Google Patents
Novel control and protective switch contact system Download PDFInfo
- Publication number
- CN203931850U CN203931850U CN201420248197.6U CN201420248197U CN203931850U CN 203931850 U CN203931850 U CN 203931850U CN 201420248197 U CN201420248197 U CN 201420248197U CN 203931850 U CN203931850 U CN 203931850U
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- China
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- contact
- connecting plate
- fixed contact
- moving
- fixed
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
A kind of novel control and protective switch contact system, by moving contact (1) and fixed contact (2), formed, moving contact (1) is wherein one end of double breaking points moving contact, fixed contact (2) is the corresponding part of moving contact breakpoint therewith, be characterized in that fixed contact lead-in wire terminal (7) is positioned at moving contact (1) top when contact system is closed, in lead-in wire terminal left side, be divided into the first horizontal connecting plate (6) and the second horizontal connecting plate (11), extend to respectively the first vertical connecting plate (5) and the second vertical connecting plate (8) of fixed contact, the first vertical connecting plate (5) is connected with the second horizontal connecting plate (11) the first horizontal connecting plate (6) with the second vertical connecting plate (8) with fixed contact contact substrate (4), fixed contact contact substrate (4) is connected with fixed contact contact (3).The utlity model has short-circuit protection make short, quick action of time, arc blow-out magnetic field strong, control and protective switch body is impacted to little feature.
Description
Technical field
The utility model relates to a kind of control and protective switch contact, particularly relates to a kind of large Current Control and protection switch contact system, belongs to appliance switch technical field.
Background technology
Control and protective switch contact system generally adopts double breaking points direct dynamic structure.That is, each moving contact has two contacts, and moving contact is connected with mechanism by guide rod, and there is a fixed contact corresponding each moving contact contact.The U-shaped structure of the general employing of fixed contact in tradition control and protective switch contact system.Fixed contact contact is installed near one end of moving contact contact in U-shaped loop, and the other end is connected with binding post.In control and protective switch practical application, in the control and protective switch of especially large electric current, there is following problem in this structure.
1, when short circuit current produces, the U-shaped loop of fixed contact is repulsion near moving contact one end to the electric power of moving contact, and the U-shaped loop of the fixed contact other end is suction to the electric power of moving contact.Under short-circuit conditions, what the electrodynamic repulsion force that moving contact is subject to was these two power is poor.By above statement, can find out; in tradition control and protective switch contact system, the U-shaped loop of fixed contact is the flicked inhibition of one end to fixed contact wherein, and its impact causing is; when short circuit current produces, moving contact operate time is long, electric arc break-time is elongated, the slider material lost of life.
2, when electric arc produces, upper end, the U-shaped loop of moving contact and fixed contact form the magnetic field of bragging that current circuit produces to the magnetic blow-out direction of electric arc for blowing to arc control device.And the magnetic field of bragging that the current circuit in the U-shaped loop of fixed contact own produces to the magnetic blow-out direction of electric arc for pulling out arc control device.That is,, in traditional contact system structure, negative consequence is played to arc extinguishing in the magnetic field of bragging that the U-shaped loop of fixed contact itself produces, and is unfavorable for arc extinction.
Summary of the invention
The purpose of this utility model is exactly to solve the problems referred to above that prior art exists, and by research and lot of experiments repeatedly, screens, and designs a kind of large Current Control and protection switch contact system.The utility model overcomes the negative effect that cause moving contact electrodynamic repulsion force and electric arc disjunction one end in U-shaped fixed contact two ends in traditional contact system, has advantages of that moving contact makes that the time is short, short circuiting arc break-time is short, moving contact impacts little to control and protective switch body.
The technical scheme that the utility model provides is: this novel control and protective switch contact system, by moving contact 1 and fixed contact 2, formed, described moving contact 1 is wherein one end of double breaking points moving contact, described fixed contact 2 is the corresponding part of moving contact breakpoint therewith, be characterized in: described fixed contact 2 has upper and lower two parallel portion and middle two vertical components, fixed contact lead-in wire terminal 7 is positioned at above moving contact 1 when contact system is closed, in lead-in wire terminal left side, be divided into the first horizontal connecting plate 6 and second horizontal connecting plate 11 two parts, and extend to respectively the first vertical connecting plate 5 and second vertical connecting plate 8 parts of fixed contact, the first vertical connecting plate 5 of fixed contact is connected with second horizontal connecting plate 11 two parts the first horizontal connecting plate 6 of fixed contact with the second vertical connecting plate 8 with fixed contact contact substrate 4, fixed contact contact substrate 4 is connected with fixed contact contact 3.
Compared with prior art, the beneficial effects of the utility model are.
1, when short circuit current produces, to be subject to the electrodynamic repulsion force direction of two horizontal components of fixed contact identical for described moving contact, and to be subject to the electrodynamic repulsion force of fixed contact be two horizontal component electrodynamic repulsion force sums of fixed contact to moving contact.
2, the magnetic direction of bragging that the current path that described fixed contact itself forms produces is identical with the magnetic direction that moving contact produces with fixed contact lower end horizontal component, electric arc is all had to the effect that blows to arc control device, and favourable have extinguishing of short circuiting arc.
3, described moving contact is after moving to over fixed contact upper end horizontal component; fixed contact upper end horizontal component is downward to the electrodynamic repulsion force direction of fixed contact; speed to electric arc disjunction later stage moving contact has abated effect, and moving contact impacts less to control and protective switch body.
Accompanying drawing explanation
Fig. 1 is left view of the present utility model.
Fig. 2 is front view of the present utility model.
Fig. 3 is vertical view of the present utility model.
Mark in figure: 1. moving contact, 2. fixed contact, 3. fixed contact contact, 4. fixed contact contact substrate, 5. the first vertical connecting plate, 6. the first horizontal connecting plate, 7. fixed contact lead-in wire terminal, 8. the second vertical connecting plate, 9. moving contact contact substrate, 10. moving contact contact, 11 second horizontal connecting plates.
Embodiment
This novel control and protective switch contact system is comprised of moving contact 1 and fixed contact 2 two parts, described fixed contact 2 has upper and lower two parallel portion and middle two vertical components, fixed contact lead-in wire terminal 7 is positioned at above moving contact 1 when contact system is closed, in lead-in wire terminal left side, be divided into the first horizontal connecting plate 6 and second horizontal connecting plate 11 two parts, extend to respectively the first vertical connecting plate 5 and second vertical connecting plate 8 parts of fixed contact, the first vertical connecting plate 5 of fixed contact is connected with second horizontal connecting plate 11 two parts the first horizontal connecting plate 6 of fixed contact with the second vertical connecting plate 8 with fixed contact contact substrate 4, fixed contact contact substrate 4 is connected with fixed contact contact 3.
As shown in FIG. 1 to 3, moving contact 1 is connected with moving contact straight-moving mechanism, and moving contact contact substrate 9 is connected with moving contact contact 10.Fixed contact contact 3 is connected with fixed contact contact substrate 4, and fixed contact contact substrate 4 is fixed on insulation shell and with first vertical connecting plate the 5, second vertical connecting plate 8 of fixed contact and is connected.First vertical connecting plate the 5, second vertical connecting plate 8 of fixed contact is connected with the first horizontal connecting plate 6, second horizontal connecting plate 11 of fixed contact respectively.The first horizontal connecting plate 6 of fixed contact, the second horizontal connecting plate 11 are connected with fixed contact lead-in wire terminal 7.
Claims (1)
1. a novel control and protective switch contact system, by moving contact (1) and fixed contact (2), formed, described moving contact (1) is wherein one end of double breaking points moving contact, described fixed contact (2) is the corresponding part of moving contact breakpoint therewith, it is characterized in that: described fixed contact (2) has upper and lower two parallel portion and middle two vertical components, fixed contact lead-in wire terminal (7) is positioned at moving contact (1) top when contact system is closed, in lead-in wire terminal left side, be divided into the first horizontal connecting plate (6) and the second horizontal connecting plate (11) two parts, extend to respectively the first vertical connecting plate (5) and second vertical connecting plate (8) part of fixed contact, the first vertical connecting plate (5) of fixed contact is connected with the second horizontal connecting plate (11) two parts first horizontal connecting plate (6) of fixed contact with the second vertical connecting plate (8) with fixed contact contact substrate (4), fixed contact contact substrate (4) is connected with fixed contact contact (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420248197.6U CN203931850U (en) | 2014-05-15 | 2014-05-15 | Novel control and protective switch contact system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420248197.6U CN203931850U (en) | 2014-05-15 | 2014-05-15 | Novel control and protective switch contact system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203931850U true CN203931850U (en) | 2014-11-05 |
Family
ID=51827623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420248197.6U Expired - Fee Related CN203931850U (en) | 2014-05-15 | 2014-05-15 | Novel control and protective switch contact system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203931850U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105097307A (en) * | 2014-05-15 | 2015-11-25 | 沈阳工业大学 | Novel control and protection switch contact system |
-
2014
- 2014-05-15 CN CN201420248197.6U patent/CN203931850U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105097307A (en) * | 2014-05-15 | 2015-11-25 | 沈阳工业大学 | Novel control and protection switch contact system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20190515 |