CN2302595Y - Improved micro-breaker - Google Patents
Improved micro-breaker Download PDFInfo
- Publication number
- CN2302595Y CN2302595Y CN 97212440 CN97212440U CN2302595Y CN 2302595 Y CN2302595 Y CN 2302595Y CN 97212440 CN97212440 CN 97212440 CN 97212440 U CN97212440 U CN 97212440U CN 2302595 Y CN2302595 Y CN 2302595Y
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- CN
- China
- Prior art keywords
- leading
- out terminal
- utility
- model
- wiring
- 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 relates to an improved micro-breaker which is composed of a leading-in terminal, a leading-out terminal, a contact head, an arc-extinguishing device, an operating mechanism, a thermal tripper and an electromagnetic tripper. A lug boss is respectively and additionally arranged on the casings of the leading-in terminal and the leading-out terminal, inserting holes are arranged at original notch parts of wiring positions of the casings of the leading-in terminal and the leading-out terminal after the original notch parts are sealed, and the original wiring mode which adopts screws to realize tight-screwing function is changed to the wiring mode of inserting press. The utility model has the advantages of simple structure, good insulation and convenient wiring. The utility model is suitable for various line-typed wiring heads. When the utility model is used, the bare parts are less and the safe work is realized.
Description
The utility model relates to protective overload circuit-breakin, particularly a kind of improved miniature circuit breaker.
CN2114219U discloses a kind of miniature circuit breaker, traditional miniature circuit breaker that comprises end of incoming cables, leading-out terminal, contact, arc-control device, operating mechanism, thermal overload release and magnetictrip has been done improvement, promptly in arc-control device, increased and led the arc plate, the described arc plate of leading is positioned at around the contact, and Yong Dao Ci material is made.Near the magnetic field boundary that short circuit current produces contact when being short-circuited is like this led the reinforcement of arc sheet and electric arc is blowed to arc control device rapidly.Structural these improve, and can increase ultimate breaking capacity under the situation that does not increase volume.But this technology is found to have the following disadvantages in actual use: 1. effective insulation distance of end of incoming cables and leading-out terminal is not enough; 2. end of incoming cables and leading-out terminal wiring inconvenience can't adapt to existing various line style interface; 3. end of incoming cables and leading-out terminal are exposed partly more, and unsafe factor is bigger.
The purpose of this utility model provides a kind of improved miniature circuit breaker, it partly improves the structure and the wiring into and out of the line two ends of miniature circuit breaker, overcome prior art above shortcomings part effectively, the shape of this product, structure or its are in conjunction with having proposed a kind of practical new technical scheme that is suitable for.
The concrete structure that can realize the utility model above-mentioned purpose is: improved miniature circuit breaker, constitute by end of incoming cables, leading-out terminal, contact, arc-control device, operating mechanism, thermal overload release and magnetictrip, the outstanding difference of itself and prior art is: increase a boss on the shell of end of incoming cables and leading-out terminal respectively, have patchhole after end of incoming cables and the original notch of leading-out terminal shell wiring position partly sealed, original screw threads is right after the line mode changes into inserting and compress the mode of connection.
Accompanying drawing 1 is a shell boss structure schematic diagram;
Accompanying drawing 2 is the wiring position schematic diagram;
1---boss 2---screw 3---clamp pair
4---patchhole 5---end of incoming cables 6---leading-out terminals
Attached Fig. 1 and 2 constitutes complete embodiment of the utility model, below in conjunction with drawings and Examples in detail the utility model is described in detail, improved miniature circuit breaker, constitute by end of incoming cables, leading-out terminal, contact, arc-control device, operating mechanism, thermal overload release and magnetictrip, on the shell of end of incoming cables (5) and leading-out terminal (6), increase a boss (1) respectively, this structural design has increased the insulation distance of miniature circuit breaker effectively, also is common described creepage distance.Have patchhole (4) after end of incoming cables (5) and leading-out terminal (6) shell wiring position notch partly sealed, original screw threads is right after the line mode changes into inserting and compress the mode of connection.This improved design, the operator only need with line insert miniature circuit breaker in the line hole, can finish wiring work with screw in compression, can be fit to various line style joints.
In sum, improved products has simple in structure, and insulation is better, and easy-to-connect can be fit to various line style joints, and is exposed partly less, safe and reliable, realized the purpose of this utility model preferably.
Claims (1)
1, improved miniature circuit breaker, constitute by end of incoming cables, leading-out terminal, contact, arc-control device, operating mechanism, thermal overload release and magnetictrip, it is characterized in that: on the shell of end of incoming cables (5) and leading-out terminal (6), increase a boss (1) respectively, have patchhole (4) after end of incoming cables (5) and the original notch of leading-out terminal (6) shell wiring position partly sealed, original screw threads is right after the line mode changes into inserting and compress the mode of connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97212440 CN2302595Y (en) | 1997-03-13 | 1997-03-13 | Improved micro-breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97212440 CN2302595Y (en) | 1997-03-13 | 1997-03-13 | Improved micro-breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2302595Y true CN2302595Y (en) | 1998-12-30 |
Family
ID=33930570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97212440 Expired - Fee Related CN2302595Y (en) | 1997-03-13 | 1997-03-13 | Improved micro-breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2302595Y (en) |
-
1997
- 1997-03-13 CN CN 97212440 patent/CN2302595Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |