CN209015917U - A kind of switching contact head - Google Patents
A kind of switching contact head Download PDFInfo
- Publication number
- CN209015917U CN209015917U CN201821703174.4U CN201821703174U CN209015917U CN 209015917 U CN209015917 U CN 209015917U CN 201821703174 U CN201821703174 U CN 201821703174U CN 209015917 U CN209015917 U CN 209015917U
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- Prior art keywords
- contact
- silver
- breaking points
- nickel
- double breaking
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Abstract
The utility model discloses a kind of switching contact heads, it includes support, and spring is equipped in the middle part of support, is connected in the middle part of the top of spring and double breaking points bridge contact, the upper surface both ends of double breaking points bridge contact are symmetrically arranged with movable contact；The two sides of support are symmetrically arranged with the fixed contact of two " 7 " word shapes, are provided with stationary contact on the crossbeam lower surface of fixed contact, and stationary contact is opposite with movable contact, and there are the gaps of 2.5-3.5mm between the two；Fixed contact and double breaking points bridge contact cover tin bronze strip material by silver-nickel and are prepared, and the laminating position of silver-nickel that silver-nickel covers tin bronze strip material is arranged in stationary contact and movable contact.Movable contact is opposite with stationary contact, so that the changing-over in switching mechanism of switching contact head is flexible, high reliablity, and improves the service life of contact head simultaneously.
Description
Technical field
The utility model belongs to low voltage electrical apparatus technology field, the specifically starting of electromagnetic system and hold-in winding current limliting
A kind of switching contact head.
Background technique
Contact system is the important component of device for switching, for connecting, carrying and electricity when section breaker electrical work
The electric current that road is flowed through.For control and protective switch, contact system mostly uses pair of the rivet or weld silver contact on substrate
Breakpoint arrangement.Part manufacturing procedure is more, and consistency is difficult to ensure, in the big working environment of humid environment, dust content, often
There are moving contacts and static contact poor contact, and unreliable problem is connected.
Utility model content
The purpose of the utility model is to provide a kind of switching contact heads, to solve traditional double break contact part consistency
It is bad, the system bad problem of contact frequent occurrence.
In order to solve the above technical problems, the taken technical solution of the utility model are as follows:
A kind of switching contact head, it includes support, and spring, the top of spring and double breaking points bridge-type are equipped in the middle part of support
It is connected in the middle part of moving contact, the upper surface both ends of double breaking points bridge-type moving contact are symmetrically arranged with movable contact；The two sides of support are symmetrical
If the crossbeam lower surface of fixed contact is equipped with stationary contact, stationary contact and movable contact phase there are two the fixed contact of " 7 " word shape
Opposed, there are the gaps of 2.5-3.5mm between the two；Stationary contact and movable contact cover tin bronze strip material by silver-nickel and prepare
It forms, the laminating position of silver-nickel that silver-nickel covers tin bronze strip material is arranged in stationary contact and movable contact.
Preferably, the middle part of the double breaking points bridge-type moving contact is equipped with oblong convex closure, the top of oblong convex closure and spring
End is connected, and the both ends for touching bridge are equipped with the movable contact of protrusion, and the back side of movable contact is equipped with recess.
Preferably, the crossbeam front end of the fixed contact is equipped with stationary contact to lower recess, the lower surface of recess.
Fixed contact and double breaking points bridge-type moving contact cover tin bronze strip material by silver-nickel in the utility model
AgNi10/QSn6.5-0.1 is prepared.Stationary contact and movable contact are arranged at the silver that silver-nickel covers tin bronze strip material
The laminating position of nickel alloy.Silver-nickel covers tin bronze strip material to be applied on fixed contact and double breaking points bridge contact, is improved
The consistency of part, simplifies the manufacturing process of traditional moving contact, static contact complexity.
It is silver-nickel and tin bronze substrate using the laminating work of hot-rolled high that the silver-nickel, which covers tin bronze strip material,
Skill spreads silver-nickel sufficiently in tin bronze substrate surface laminating, and laminating layer is not in aliquation cracking in use
Phenomenon.Silver-nickel covers tin bronze strip material and had both been able to satisfy part machinery performance requirement, Cold Press Working function admirable, and has
Excellent electric conductivity, electrical endurance are good.
The utility model has the following beneficial effects:
Fixed contact and tin bronze strip material is covered by silver-nickel with double breaking points bridge-type moving contact in the utility model
It is prepared, silver-nickel covers tin bronze strip material to be applied on fixed contact and double breaking points bridge-type moving contact, is on the one hand mentioned
The high precision and consistency of part, on the one hand simplifies the manufacturing process of moving contact, static contact.Movable contact is opposite with stationary contact
It sets, so that the changing-over in switching mechanism of switching contact head is flexible, on-off high reliablity, while improving the use longevity of switching contact
Life.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of fixed contact in Fig. 1；
Fig. 3 is the structural schematic diagram of double breaking points bridge-type moving contact in Fig. 1；
Fig. 4 is the structural schematic diagram at the back side of double breaking points bridge-type moving contact；
In figure: 1, fixed contact, 2, stationary contact, 3, double breaking points bridge-type moving contact, 4, movable contact, 5, spring, 6, support, 7,
Oblong convex closure.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
A kind of switching contact head as shown in Figure 1 to Figure 3, it includes support 6, and the middle part of support 6 is equipped with spring 5, bullet
The top of spring 5 is connected with the middle part of double breaking points bridge-type moving contact 3, and the upper surface both ends of double breaking points bridge-type moving contact 3 are symmetrically set
It is equipped with movable contact 4；The two sides of support 6 are symmetrically arranged with the fixed contact 1 of two " 7 " word shapes, the crossbeam front end of fixed contact 1 to
The lower surface of lower recess, recess is equipped with stationary contact 2, and stationary contact 2 and movable contact 4 are opposite, and there are 2.5-3.5mm between the two
Gap；Fixed contact 1 and double breaking points bridge-type moving contact 3 cover the disposable punching press of tin bronze strip material by silver-nickel and prepare
It forms, stationary contact 2 and the laminating position of silver-nickel that movable contact 4 is that silver-nickel covers tin bronze strip material.
The middle part of double breaking points bridge-type moving contact 3 is equipped with oblong convex closure 7, and oblong convex closure 7 is connected with the top of spring 5
It connects,.The both ends of double breaking points bridge-type moving contact 3 are equipped with the movable contact 4 of protrusion, and the back side of movable contact 4 is equipped with recess.
Fixed contact 1 and double breaking points bridge-type moving contact 3 cover tin bronze strip material by silver-nickel in the utility model
Disposable punching press is prepared, and stationary contact 2 is located at the silver-nickel for covering tin bronze strip material for silver-nickel with movable contact 4 and covers
Close position.Silver-nickel covers tin bronze strip material to be applied on fixed contact and double breaking points bridge-type moving contact, is on the one hand improved
The precision and consistency of part, on the one hand simplifies the manufacturing process of moving contact, static contact.Movable contact 4 and stationary contact 2 are opposite
It sets, so that switching contact changing-over in switching mechanism is flexible, Reliability of Microprocessor is high, and improves the service life of switching contact.
Claims (3)
1. a kind of switching contact head, it is characterised in that: it includes support (6), and spring (5), spring are equipped in the middle part of support (6)
(5) it is connected in the middle part of top and double breaking points bridge-type moving contact (3), the upper surface both ends pair of double breaking points bridge-type moving contact (3)
Title is provided with movable contact (4)；The two sides of support (6) are symmetrically arranged with the fixed contact (1) of two " 7 " word shapes, fixed contact (1)
Crossbeam lower surface on be provided with stationary contact (2), stationary contact (2) and movable contact (4) are opposite, and there are 2.5- between the two
The gap of 3.5mm；Fixed contact (1) and double breaking points bridge-type moving contact (3) cover tin bronze strip material by silver-nickel and prepare
It forms, the laminating position of silver-nickel that tin bronze strip material is covered for silver-nickel is arranged in stationary contact (2) and movable contact (4).
2. a kind of switching contact head according to claim 1, it is characterised in that: the double breaking points bridge-type moving contact (3)
Middle part is equipped with oblong convex closure (7), and convex closure (7) is connected with the top of spring (5), the both ends of double breaking points bridge-type moving contact (3)
The back side of movable contact (4) equipped with protrusion, movable contact (4) is equipped with recess.
3. a kind of switching contact head according to claim 1 or 2, it is characterised in that: before the crossbeam of the fixed contact (1)
It holds to lower recess, the lower surface of recess is equipped with the stationary contact (2) of protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821703174.4U CN209015917U (en) | 2018-10-20 | 2018-10-20 | A kind of switching contact head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821703174.4U CN209015917U (en) | 2018-10-20 | 2018-10-20 | A kind of switching contact head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209015917U true CN209015917U (en) | 2019-06-21 |
Family
ID=66839236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821703174.4U Active CN209015917U (en) | 2018-10-20 | 2018-10-20 | A kind of switching contact head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209015917U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112103140A (en) * | 2019-09-29 | 2020-12-18 | 行驱电气（上海）有限公司 | Support piece, moving contact component, base and magnetic latching relay |
| CN112103143A (en) * | 2019-09-29 | 2020-12-18 | 行驱电气（上海）有限公司 | Energy storage type quick on-off magnetic latching relay |
-
2018
- 2018-10-20 CN CN201821703174.4U patent/CN209015917U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112103140A (en) * | 2019-09-29 | 2020-12-18 | 行驱电气（上海）有限公司 | Support piece, moving contact component, base and magnetic latching relay |
| CN112103143A (en) * | 2019-09-29 | 2020-12-18 | 行驱电气（上海）有限公司 | Energy storage type quick on-off magnetic latching relay |
| CN112103143B (en) * | 2019-09-29 | 2023-05-23 | 行驱电气（上海）有限公司 | Energy-storage type quick on-off magnetic latching relay |
| CN112103140B (en) * | 2019-09-29 | 2023-06-09 | 行驱电气（上海）有限公司 | Moving contact assembly, base and magnetic latching relay |
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