CN115863115A - Tripping mechanism of modularized molded case circuit breaker - Google Patents
Tripping mechanism of modularized molded case circuit breaker Download PDFInfo
- Publication number
- CN115863115A CN115863115A CN202211621738.0A CN202211621738A CN115863115A CN 115863115 A CN115863115 A CN 115863115A CN 202211621738 A CN202211621738 A CN 202211621738A CN 115863115 A CN115863115 A CN 115863115A
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- module
- circuit breaker
- molded case
- case circuit
- armature
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Abstract
A tripping mechanism of a modularized molded case circuit breaker comprises a base, a top cover, a contact arc extinguishing module, a wiring terminal module, an operating module and a protection module, wherein the contact arc extinguishing module, the operating module and the protection module are installed in the base, the operating module and the wiring terminal module form interlocking, the wiring terminal module is arranged on the surface of the base, and the contact arc extinguishing module is connected with the operating module; the protection module includes overload protection unit and short-circuit protection unit, overload protection unit includes iron core and armature, armature can with the iron core cooperation.
Description
Technical Field
The invention relates to a tripping mechanism of a modularized molded case circuit breaker.
Background
There is a modular structure among the present moulded case circuit breaker, and modular structure realizes through blowing out high-pressure gas when tripping, and high-pressure gas acts on the member, member and tripping system linkage, but such structure is complicated, and high-pressure gas must satisfy 50 KA's requirement and just can realize the dropout, has the risk of dropout inefficacy.
Disclosure of Invention
The invention aims to provide a tripping mechanism of a modularized molded case circuit breaker, which can realize overload and short-circuit protection through a mechanical mechanism.
The above object of the present invention is achieved by the following scheme:
a tripping mechanism of a modularized molded case circuit breaker comprises a base, a top cover, a contact arc extinguishing module, a wiring terminal module, an operating module and a protection module, wherein the contact arc extinguishing module, the operating module and the protection module are installed in the base, the operating module and the wiring terminal module form interlocking, the wiring terminal module is arranged on the surface of the base, and the contact arc extinguishing module is connected with the operating module;
the method is characterized in that: the protection module includes overload protection unit and short-circuit protection unit, overload protection unit includes iron core and armature, armature can with the iron core cooperation.
Further, the armature is engageable with the operating mechanism.
Furthermore, the short-circuit protection unit comprises a thermal element and a temperature sensing element, wherein one end of the temperature sensing element is provided with a bulge capable of acting with the armature.
Further, a spring is arranged on one side of the temperature sensing element facing the armature.
Further, the thermal element is electrically connected to the terminal module.
Further, the thermal element and the yoke are provided in the housing.
Further, the base and the top cover are in sealing fit to form a mounting chamber.
Furthermore, the spring is a torsion spring, a tension spring or a compression spring.
The invention provides a mechanical structure to realize overload and short-circuit protection, and the mechanical structure is a modular structure, realizes modular assembly and has the effect of convenient assembly.
Drawings
Fig. 1 is a structural view of a trip mechanism of a modular molded case circuit breaker according to the present invention.
Fig. 2 is a main body view of a trip mechanism of a modular molded case circuit breaker.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example 1
Referring to fig. 1 and 2, a tripping mechanism of a modular molded case circuit breaker includes a base, a top cover, a contact arc-extinguishing module, a terminal module, an operating module and a protection module, wherein the contact arc-extinguishing module, the operating module and the protection module are installed in the base, the operating module and the terminal module form an interlock, the terminal module is arranged on the surface of the base, and the contact arc-extinguishing module is connected with the operating module;
the protection module includes overload protection unit and short-circuit protection unit, overload protection unit includes iron core and armature, armature can with the iron core cooperation.
The armature is engageable with the operating mechanism. The short-circuit protection unit comprises a thermal element 1 and a temperature sensing element 5, wherein one end of the temperature sensing element 5 is provided with a bulge 7 capable of acting with an armature 6.
And a spring 4 is arranged on one side of the temperature sensing element facing the armature, the thermal element is electrically connected with the wiring terminal module, and the spring is a torsion spring.
The tripping mechanism of the modularized molded case circuit breaker adopts a mechanical structure to realize overload and short-circuit protection, and the mechanical structure is a modularized structure, so that modularized assembly is realized, and the modularized molded case circuit breaker has the effect of convenience in assembly. Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (10)
1. A tripping mechanism of a modularized molded case circuit breaker comprises a base, a top cover, a contact arc extinguishing module, a wiring terminal module, an operation module and a protection module, wherein the contact arc extinguishing module, the operation module and the protection module are installed in the base, the operation module and the wiring terminal module form interlocking, the wiring terminal module is arranged on the surface of the base, and the contact arc extinguishing module is connected with the operation module;
the method is characterized in that: the protection module includes overload protection unit and short-circuit protection unit, overload protection unit includes iron core and armature, armature can with the iron core cooperation.
2. The trip mechanism of a modular molded case circuit breaker of claim 1, wherein said armature is cooperable with said operating mechanism.
3. The trip mechanism of the modular molded case circuit breaker of claim 1, wherein the short circuit protection unit comprises a thermal element and a temperature sensing element, and the temperature sensing element is provided with a protrusion capable of acting with the armature at one end.
4. The trip mechanism of the modular molded case circuit breaker of claim 3, wherein a side of the temperature sensing element facing the armature is provided with a spring.
5. The trip mechanism of the modular molded case circuit breaker of claim 3, wherein said thermal element is electrically connected to said terminal module.
6. The trip mechanism of the modular molded case circuit breaker of claim 5, wherein said thermal element and said yoke are disposed in a housing.
7. The trip mechanism of a modular molded case circuit breaker of claim 1, wherein said base and said top cap sealingly cooperate to form a mounting chamber.
8. The trip mechanism of the modular molded case circuit breaker of claim 3, wherein said spring is a torsion spring.
9. The trip mechanism of the modular molded case circuit breaker of claim 3, wherein the spring is a tension spring.
10. The trip mechanism of the modular molded case circuit breaker of claim 3, wherein the spring is a compression spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211621738.0A CN115863115A (en) | 2022-12-16 | 2022-12-16 | Tripping mechanism of modularized molded case circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211621738.0A CN115863115A (en) | 2022-12-16 | 2022-12-16 | Tripping mechanism of modularized molded case circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115863115A true CN115863115A (en) | 2023-03-28 |
Family
ID=85673541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211621738.0A Pending CN115863115A (en) | 2022-12-16 | 2022-12-16 | Tripping mechanism of modularized molded case circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115863115A (en) |
-
2022
- 2022-12-16 CN CN202211621738.0A patent/CN115863115A/en active Pending
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