CN203799980U - Miniaturized circuit breaker - Google Patents
Miniaturized circuit breaker Download PDFInfo
- Publication number
- CN203799980U CN203799980U CN201420181351.2U CN201420181351U CN203799980U CN 203799980 U CN203799980 U CN 203799980U CN 201420181351 U CN201420181351 U CN 201420181351U CN 203799980 U CN203799980 U CN 203799980U
- Authority
- CN
- China
- Prior art keywords
- moving contact
- binding post
- circuit breaker
- total
- sub
- 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 a miniaturized circuit breaker. The miniaturized circuit breaker comprises a housing, a binding post, a lower binding post, a handle, and a moving contact total release mechanism. The handle is movably connected with the moving contact total release mechanism through a handle connecting rod, the lower binding post is connected with an instantaneous release static contact assembly , the instantaneous release static contact assembly is in cooperation connection with the total release mechanism, the binding post is connected with an over-current time-delay release double-metal arc ignition assembly, the over-current time-delay release double-metal arc ignition assembly is connected with the total release mechanism through a lead, and an arc-extinguishing cover is arranged below the instantaneous release static contact assembly. The miniaturized circuit breaker has the advantages of simple structure, convenient installation, high release reaction sensitivity and good safety performance.
Description
Technical field
The utility model relates to Low Voltage Electrical Apparatus, relates in particular to the miniature circuit breaker relevant to circuit safety.
Background technology
Circuit breaker is common Protector for electric appliances of the prior art, and confession, Electrical Safety and people's lives are played to great effect.Be often referred to the electric current that can close, carry and cut-off under normal loop condition, and can close, carrying and cut-off the switching device that abnormal loop condition comprises the electric current under short circuit condition in official hour.Can automatic shutdown circuit when serious overload or short circuit and the fault such as under-voltage occur electrical appliance.The quality of circuit breaker is directly connected to the safety problem of life, and the sensitivity of circuit breaker and Interruption are the important indicators of weighing circuit breaker performance.
Summary of the invention
The purpose of this utility model be to provide a kind of cost low, be quick on the draw, miniature circuit breaker simple in structure.
In order to solve the problem in background technology, realize the purpose of this utility model, the utility model adopts following technical scheme:
A kind of miniature circuit breaker, comprise shell, binding post, lower binding post, handle and total tripping mechanism, handle is flexibly connected with total tripping mechanism by handle connecting rod, lower binding post connects instantaneous trip fixed contact sub-assembly, instantaneous trip fixed contact sub-assembly is connected with total tripping mechanism, on binding post, be connected to the two golden striking sub-assemblies of overcurrent delay dropout, the two golden striking sub-assemblies of overcurrent delay dropout are connected by wire with total tripping mechanism, and the below of instantaneous trip fixed contact sub-assembly is provided with arc-extinguish chamber.
The total tripping mechanism of described moving contact comprises moving contact rack, moving contact, total pulley and moving contact back-moving spring, total pulley is flexibly connected with moving contact rack by self-locking pin, moving contact is fixed on moving contact rack with self-locking pin, moving contact back-moving spring one end is fixed on moving contact, the other end is fixed on the relevant position of shell, is also provided with two gold connection wires and is connected with two golden striking sub-assemblies on moving contact; Snap close is connected on the total support of moving contact and with total pulley and is connected.
The described two golden striking sub-assemblies of overcurrent delay dropout comprise two gold plaques, two golden striking brace and arc striking piece, and two gold plaques are connected on binding post by wire, and arc striking piece is arranged on arc-extinguish chamber below.
Described instantaneous trip fixed contact sub-assembly comprises fixed contact, magnetic guiding frame, dropout magnetic core, instantaneous trip push rod and instantaneous coil, the outer surface cover of dropout magnetic core has plastic sheath, instantaneous trip push rod is arranged in dropout magnetic core, in the outside of dropout magnetic core, be wound with instantaneous coil, one end of instantaneous coil is connected with fixed contact, the other end is connected on lower binding post, and magnetic guiding frame is sleeved on dropout magnetic core.
The outside of binding post and lower binding post is provided with wiring insulating case.
On shell, establish pawl rivet parts, the cooperation by riveted parts and pawl rivet is by the quick combination of the upper and lower covers of shell.
The below of shell is provided with installation push pedal.Facilitate the installation of miniature circuit breaker.
A kind of miniature circuit breaker that the utility model provides, simple in structure, easy for installation, dropout reaction sensitivity is high, and security performance is good.
Accompanying drawing explanation
Fig. 1: the utility model structural representation;
Fig. 2: the total tripping mechanism of the utility model moving contact moves structural representation;
Fig. 3: instantaneous trip fixed contact assembling unit structure schematic diagram
Fig. 4: the two golden striking assembling unit structure schematic diagrames of overcurrent delay dropout;
Embodiment
Below in conjunction with Figure of description, the utility model is described further.
Embodiment: the present embodiment provides a kind of miniature circuit breaker, comprise shell 1, binding post 2, lower binding post 3, the total tripping mechanism of handle 4 and moving contact, handle 4 is flexibly connected by the total tripping mechanism of handle connecting rod 6 and moving contact, the total tripping mechanism of described moving contact comprises moving contact rack 5, moving contact 7, total pulley 8 and moving contact back-moving spring 9, total pulley 8 is flexibly connected with moving contact rack 5 by self-locking pin, moving contact 7 use self-locking pins are fixed on moving contact rack 5, moving contact back-moving spring 9 one end are fixed on moving contact 7, the other end is fixed on the relevant position of shell 1, on moving contact 7, being also provided with two gold connection wires is connected with two golden striking sub-assemblies, snap close 10 is connected on the total support 5 of moving contact and with total pulley 8 and is connected, lower binding post 3 connects instantaneous trip fixed contact sub-assembly, the total tripping mechanism of instantaneous trip fixed contact sub-assembly and moving contact is connected, on binding post 2, be connected to the two golden striking sub-assemblies of overcurrent delay dropout, the two golden striking sub-assemblies of overcurrent delay dropout are connected by wire with total tripping mechanism, and the below of instantaneous trip fixed contact sub-assembly is provided with arc-extinguish chamber 20.Described instantaneous trip fixed contact sub-assembly comprises fixed contact 21, magnetic guiding frame 22, dropout magnetic core 23, instantaneous trip push rod 24 and instantaneous coil 25, the outer surface cover of dropout magnetic core 23 has plastic sheath 26, instantaneous trip push rod 24 is arranged in dropout magnetic core 23, in the outside of dropout magnetic core 23, be wound with instantaneous coil 25, one end of instantaneous coil 25 is connected with fixed contact 21, the other end is connected on lower binding post 3, and magnetic guiding frame 22 is sleeved on dropout magnetic core 23.The described two golden striking sub-assemblies of overcurrent delay dropout comprise two gold plaques 31, two golden striking brace 32 and arc striking piece 33, and two gold plaques 31 are connected on binding post 2 by wire 34, and arc striking piece 7 is arranged on arc-extinguish chamber 20 belows.In the outside of binding post 2 and lower binding post 3, be provided with wiring insulating case 41,42.On shell, establish pawl rivet parts 43, the cooperation by riveted parts and pawl rivet is by the quick combination of the upper and lower covers of shell.The below of shell is provided with installs push pedal 44.Facilitate the installation of miniature circuit breaker.
The disclosed miniature circuit breaker of the utility model, have highly sensitive, security performance good, the feature such as easy for installation.
Claims (7)
1. a miniature circuit breaker, comprise shell, binding post, lower binding post, handle and the total tripping mechanism of moving contact, it is characterized in that handle passes through handle connecting rod and is flexibly connected with the total tripping mechanism of moving contact, lower binding post connects instantaneous trip fixed contact sub-assembly, instantaneous trip fixed contact sub-assembly is connected with total tripping mechanism, on binding post, be connected to the two golden striking sub-assemblies of overcurrent delay dropout, the two golden striking sub-assemblies of overcurrent delay dropout are connected by wire with total tripping mechanism, and the below of instantaneous trip fixed contact sub-assembly is provided with arc-extinguish chamber.
2. a kind of miniature circuit breaker according to claim 1, it is characterized in that the described total tripping mechanism of moving contact comprises moving contact rack, moving contact, total pulley and moving contact back-moving spring, total pulley is flexibly connected with moving contact rack by self-locking pin, moving contact is fixed on moving contact rack with self-locking pin, moving contact back-moving spring one end is fixed on moving contact, the other end is fixed on the relevant position of shell, is also provided with two gold connection wires and is connected with two golden striking sub-assemblies on moving contact; Snap close is connected on the total support of moving contact and with total pulley and is connected.
3. a kind of miniature circuit breaker according to claim 1, it is characterized in that the described two golden striking sub-assemblies of overcurrent delay dropout comprise two gold plaques, two golden striking brace and arc striking piece, two gold plaques are connected on binding post by wire, and arc striking piece is arranged on arc-extinguish chamber below.
4. a kind of miniature circuit breaker according to claim 1, it is characterized in that described instantaneous trip fixed contact sub-assembly comprises fixed contact, magnetic guiding frame, dropout magnetic core, instantaneous trip push rod and instantaneous coil, the outer surface cover of dropout magnetic core has plastic sheath, instantaneous trip push rod is arranged in dropout magnetic core, in the outside of dropout magnetic core, be wound with instantaneous coil, one end of instantaneous coil is connected with fixed contact, and the other end is connected on lower binding post, and magnetic guiding frame is sleeved on dropout magnetic core.
5. a kind of miniature circuit breaker according to claim 1, is characterized in that the outside of binding post and lower binding post is provided with wiring insulating case.
6. a kind of miniature circuit breaker according to claim 1, is characterized in that establishing on shell pawl rivet parts, and the cooperation by riveted parts and pawl rivet is by the quick combination of the upper and lower covers of shell.
7. a kind of miniature circuit breaker according to claim 1, is characterized in that the below of shell is provided with installation push pedal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420181351.2U CN203799980U (en) | 2014-04-10 | 2014-04-10 | Miniaturized circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420181351.2U CN203799980U (en) | 2014-04-10 | 2014-04-10 | Miniaturized circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203799980U true CN203799980U (en) | 2014-08-27 |
Family
ID=51382175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420181351.2U Expired - Fee Related CN203799980U (en) | 2014-04-10 | 2014-04-10 | Miniaturized circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203799980U (en) |
-
2014
- 2014-04-10 CN CN201420181351.2U patent/CN203799980U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20200410 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |