CN208368439U - Miniature circuit breaker - Google Patents
Miniature circuit breaker Download PDFInfo
- Publication number
- CN208368439U CN208368439U CN201820723183.3U CN201820723183U CN208368439U CN 208368439 U CN208368439 U CN 208368439U CN 201820723183 U CN201820723183 U CN 201820723183U CN 208368439 U CN208368439 U CN 208368439U
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- CN
- China
- Prior art keywords
- circuit breaker
- wiring board
- miniature circuit
- shell
- drive mechanism
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Abstract
The utility model provides a miniature circuit breaker, which comprises a shell, wherein the shell is provided with a handle, a breaking connecting rod mechanism, a thermomagnetic tripper, a breaking contact, an arc extinguishing grid, at least one wire inlet end and at least one wire outlet end; the shell is further provided with a current detection device, an electromagnetic driving mechanism and a circuit board, a microprocessor is arranged on the circuit board, the current detection device and the electromagnetic driving mechanism are respectively connected with the circuit board, and the electromagnetic driving mechanism is in driving connection with the breaking connecting rod mechanism and/or the breaking contact. The utility model provides a miniature circuit breaker can solve among the prior art protection precision that miniature circuit breaker exists poor, have potential safety hazard and protect incomplete problem, promotes miniature circuit breaker's protection precision and realizes miniature circuit breaker's intelligent control.
Description
Technical field
The utility model belongs to breaker technical field, and in particular to a kind of miniature circuit breaker.
Background technique
Miniature circuit breaker refers to exchange 50/60Hz voltage rating 230/400V, uses on the following route of rated current 63A
Low-voltage circuit breaker is usually used in the places such as industry, business, high-rise and residential houses.In the prior art, miniature circuit breaker generallys use
Pyromagnetic release realizes short circuit or overload protection, however Pyromagnetic release is since itself is there are the difference of physical characteristic, there is also
Discrete type it is higher, the problem of protection precision difference so that miniature circuit breaker to the protection of distribution system remain safety it is hidden
Suffer from and protects incomplete problem.In view of problem above, the utility model discloses a kind of miniature circuit breakers to solve above-mentioned ask
Topic.
Utility model content
The purpose of the utility model is to overcome defects in the prior art, provide a kind of miniature circuit breaker, can solve
Protection precision present in miniature circuit breaker is poor in the prior art, there are security risk and the incomplete problem of protection, promotion guarantors
It protects precision and realizes intelligent control.
In order to achieve the above objectives, the utility model embodiment provides a kind of miniature circuit breaker, including shell, the shell
Be provided with handle, disjunction link mechanism, Pyromagnetic release, break contact and arc-chute, at least one end of incoming cables and at least one
Leading-out terminal；The shell is additionally provided with current detection means, electromagnetic drive mechanism and wiring board, is provided on the wiring board micro-
Processor, the current detection means and electromagnetic drive mechanism are connect with the wiring board respectively, and the current detection means is logical
The wiring board to be crossed to be connected with the microprocessor, the electromagnetic drive mechanism is connected with the microprocessor by the wiring board,
The electromagnetic drive mechanism and the disjunction link mechanism and/or the break contact are drivingly connected；By micro- described in wiring board
Processor analyzes the current signal handled in the acquired miniature circuit breaker route of current detection means in real time, then output point
Disconnected or switching signal to the electromagnetic drive mechanism, thus by electromagnetic drive mechanism control disjunction link mechanism and/or
Break contact movement, realizes the intelligent divide-shut brake of the miniature circuit breaker, improve miniature circuit breaker protection it is comprehensive and
Protection precision.
Optionally, the current detection means can be current transformer, and the electromagnetic drive mechanism can be electromagnet.
Further, the shell is additionally provided with signal terminal, and the signal terminal is connected with the wiring board,
And be connected with the microprocessor by the wiring board, for being connect with external device communication.
Further, the shell is additionally provided with supply terminals, and the supply terminals is connected with the wiring board,
And be connected with the microprocessor by the wiring board, for being supplied at least one of the wiring board, electromagnetic drive mechanism
Electricity.
Further, the wiring board includes first line plate, the second wiring board and tertiary circuit plate.
Further, the current detection means is connect with the first line plate, the electromagnetic drive mechanism with it is described
The connection of second wiring board, the first line plate are connected with the second wiring board by the tertiary circuit plate.
Further, the break contact includes moving contact and static contact
Miniature circuit breaker provided by the utility model has the beneficial effect that and can solve miniature circuit breaker institute in the prior art
Existing protection precision is poor, there are security risk and the incomplete problem of protection, promotes the protection precision and reality of miniature circuit breaker
The intelligent control of existing miniature circuit breaker.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described.It should be evident that the drawings in the following description are merely some embodiments of the present invention, it is right
For those of ordinary skill in the art, without creative efforts, other can also be obtained according to these figures
Attached drawing.
Fig. 1 is the structural schematic diagram for the miniature circuit breaker that the utility model embodiment one provides.
Fig. 2 is the structural schematic diagram for the miniature circuit breaker that the utility model embodiment two provides.
Drawing reference numeral explanation:
1, shell；101, handle；102, disjunction link mechanism；103, Pyromagnetic release；104, break contact；105, arc extinguishing
Grid；106, end of incoming cables；107, leading-out terminal；108, current detection means；109, electromagnetic drive mechanism；110, signal terminal；
111, supply terminals；112, first line plate；113, the second wiring board；114, tertiary circuit plate；115, the 4th wiring board.
Specific embodiment
The miniature circuit breaker of the utility model is described in detail with reference to the accompanying drawing.
Embodiment one
The structural schematic diagram of the miniature circuit breaker of the present embodiment one is shown in Fig. 1.As shown in Figure 1, the utility model
The miniature circuit breaker of preferable specific embodiment one, including shell 1, the shell 1 are provided with handle 101, disjunction link mechanism
102, Pyromagnetic release 103, break contact 104, arc-chute 105, at least one end of incoming cables 106 and at least one leading-out terminal 107；
The shell 1 is additionally provided with current detection means 108, electromagnetic drive mechanism 109 and wiring board, is provided on the wiring board micro-
Processor, the current detection means 108 and electromagnetic drive mechanism 109 are connect with the wiring board respectively, the current detecting
Device is connected with the microprocessor by the wiring board, and the electromagnetic drive mechanism passes through the wiring board and microprocessor phase
Connection, the electromagnetic drive mechanism 109 are drivingly connected with the disjunction link mechanism 102 and/or the break contact 104；It is logical
It crosses microprocessor described in wiring board and analyzes the electric current handled in the acquired miniature circuit breaker route of current detection means in real time
Then signal exports disjunction or switching signal to the electromagnetic drive mechanism, to pass through electromagnetic drive mechanism control point
Disconnection linkage and/or break contact movement, realize the intelligent divide-shut brake of the miniature circuit breaker, improve miniature circuit breaker
Protection is comprehensive and protection precision.Such as in the wiring board microprocessor can according to current signal, by with specified electricity
The rated values such as stream are relatively determined as short circuit current, overload current, leakage current, three phase unbalance current etc. with electrical anomaly, thus real
When by controlling the electromagnetic drive mechanism 109 control disjunction link mechanism 102 and/or 104 separating brake of the break contact or conjunction
Lock movement, rapidly and accurately cuts off distribution line, to realize short-circuit protection, overload protection, earth leakage protective, three-phase imbalance electricity
Stream etc. matches the accurate protection of electrical anomaly, improve miniature circuit breaker power distribution protection is comprehensive and protection precision, realize intelligent control.
Optionally, the current detection means can be current transformer, and the electromagnetic drive mechanism can be electromagnet,
The microprocessor can be MC68HC908AP32 chip, and the wiring board can be pcb board.
Further, the shell 1 is additionally provided with signal terminal 110, the signal terminal 110 and the wiring board
It is connected, and is connected with the microprocessor by the wiring board, for is connect with external device communication.
Further, the shell 1 is additionally provided with supply terminals 111, the supply terminals 111 and the wiring board
Be connected, and be connected with the microprocessor by the wiring board, for in the wiring board, electromagnetic drive mechanism at least
One power supply.
Further, the wiring board includes first line plate 112, the second wiring board 113 and tertiary circuit plate 114.
Optionally, the microprocessor can be set in first line plate 112, the second wiring board 113 and tertiary circuit plate
On at least one wiring board in 114.
Further, the current detection means 108 is connect with the first line plate 112, the electromagnetic drive mechanism
109 connect with second wiring board 113, and the first line plate 112 and the second wiring board 113 pass through the tertiary circuit plate
114 are connected.
Further, the break contact 104 includes moving contact and static contact
Embodiment two
The structural schematic diagram of the miniature circuit breaker of the present embodiment two is shown in Fig. 2.As shown in Fig. 2, the utility model
The miniature circuit breaker of preferable specific embodiment two, including shell 1, the shell 1 are provided with handle 101, disjunction link mechanism
102, Pyromagnetic release 103, break contact 104, arc-chute 105, at least one end of incoming cables 106 and at least one leading-out terminal 107；
The shell 1 is additionally provided with current detection means 108, electromagnetic drive mechanism 109 and the 4th wiring board 115, the 4th route
Be provided with microprocessor on plate 115, the current detection means 108 and electromagnetic drive mechanism 109 respectively with the 4th route
Plate 115 connects, and the current detection means is connected with the microprocessor by the 4th wiring board, the electromagnetic drive mechanism
It is connected with the microprocessor by the 4th wiring board, the electromagnetic drive mechanism 109 and the disjunction link mechanism 102
And/or the break contact 104 is drivingly connected；Analyze the processing electricity in real time by microprocessor described in the 4th wiring board 115
Then current signal in the acquired miniature circuit breaker route of flow detection device exports disjunction or switching signal to the electromagnetism drives
Motivation structure, to be acted by electromagnetic drive mechanism control disjunction link mechanism and/or the break contact, described in realization
The intelligent divide-shut brake of miniature circuit breaker, improve miniature circuit breaker protection is comprehensive and protection precision.Such as the 4th route
Microprocessor can be according to current signal, by being determined as short circuit current, overload compared with the rated values such as rated current in plate 115
Electric current, leakage current, three phase unbalance current etc. match electrical anomaly, to be controlled in real time by controlling the electromagnetic drive mechanism 109
Disjunction link mechanism 102 and/or 104 separating brake of the break contact or feed motion, rapidly and accurately cut off distribution line, thus
It realizes that short-circuit protection, overload protection, earth leakage protective, three phase unbalance current etc. match the accurate protection of electrical anomaly, improves miniature disconnected
The power distribution protection of road device is comprehensive and protection precision, realizes intelligent control.
Optionally, the current detection means can be current transformer, and the electromagnetic drive mechanism can be electromagnet,
The microprocessor can be MC68HC908AP32 chip, and the 4th wiring board 115 can be pcb board.
Further, the shell 1 is additionally provided with signal terminal 110, the signal terminal 110 and the 4th line
Road plate 115 is connected, and is connected with the microprocessor by the 4th wiring board, for connecting with external device communication.
Further, the shell 1 is additionally provided with supply terminals 111, the supply terminals 111 and the 4th line
Road plate 115 is connected, and is connected with the microprocessor by the 4th wiring board, for the 4th wiring board 115, electricity
The power supply of at least one of Magnetic driving mechanism.
Further, the break contact 104 includes moving contact and static contact
Miniature circuit breaker provided by the utility model can solve the essence of protection present in miniature circuit breaker in the prior art
Degree is poor, there are security risk and the incomplete problems of protection, promotes the protection precision and realization miniature circuit breaker of miniature circuit breaker
Intelligent control.
More than, only specific embodiment of the utility model, but protection scope of the utility model is not limited thereto, appoints
What those familiar with the art within the technical scope disclosed by the utility model, can easily think of the change or the replacement,
It should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with the guarantor of claim
It protects subject to range.
Claims (6)
1. a kind of miniature circuit breaker, including shell (1), the shell (1) is provided with handle (101), disjunction link mechanism
(102), Pyromagnetic release (103), break contact (104), arc-chute (105), at least one end of incoming cables (106) and at least one
Leading-out terminal (107)；It is characterized in that, the shell (1) is additionally provided with current detection means (108), electromagnetic drive mechanism (109)
And wiring board, microprocessor, the current detection means (108) and electromagnetic drive mechanism (109) are provided on the wiring board
It is connect respectively with the wiring board, the electromagnetic drive mechanism (109) and the disjunction link mechanism (102) and/or described point
Disconnected contact (104) are drivingly connected.
2. miniature circuit breaker according to claim 1, which is characterized in that the shell (1) is additionally provided with signal terminal
(110), the signal terminal (110) is connected with the wiring board.
3. miniature circuit breaker according to claim 1, which is characterized in that the shell (1) is additionally provided with supply terminals
(111), the supply terminals (111) is connected with the wiring board.
4. miniature circuit breaker according to claim 1, which is characterized in that the wiring board include first line plate (112),
Second wiring board (113) and tertiary circuit plate (114).
5. miniature circuit breaker according to claim 4, which is characterized in that the current detection means (108) and described the
One wiring board (112) connection, the electromagnetic drive mechanism (109) connect with second wiring board (113), the first line
Plate (112) is connected with the second wiring board (113) by the tertiary circuit plate (114).
6. miniature circuit breaker according to claim 1, which is characterized in that the break contact (104) include moving contact and
Static contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820723183.3U CN208368439U (en) | 2018-05-06 | 2018-05-06 | Miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820723183.3U CN208368439U (en) | 2018-05-06 | 2018-05-06 | Miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208368439U true CN208368439U (en) | 2019-01-11 |
Family
ID=64935146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820723183.3U Active CN208368439U (en) | 2018-05-06 | 2018-05-06 | Miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208368439U (en) |
-
2018
- 2018-05-06 CN CN201820723183.3U patent/CN208368439U/en active Active
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| GR01 | Patent grant |