CN208819818U - Miniature circuit breaker - Google Patents
Miniature circuit breaker Download PDFInfo
- Publication number
- CN208819818U CN208819818U CN201821500057.8U CN201821500057U CN208819818U CN 208819818 U CN208819818 U CN 208819818U CN 201821500057 U CN201821500057 U CN 201821500057U CN 208819818 U CN208819818 U CN 208819818U
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- Prior art keywords
- circuit breaker
- actuator
- miniature circuit
- circuit board
- connection sheet
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- 230000007246 mechanism Effects 0.000 claims abstract description 50
- 230000003068 static effect Effects 0.000 claims abstract description 13
- 238000004891 communication Methods 0.000 claims abstract description 10
- 238000001514 detection method Methods 0.000 claims abstract description 5
- 238000012360 testing method Methods 0.000 claims description 14
- 230000005611 electricity Effects 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 abstract description 13
- 238000013021 overheating Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model provides a miniature circuit breaker, which comprises a shell, a handle, a breaking link mechanism, an electromagnetic release, a moving contact, a static contact, an arc-extinguishing grid, an arc striking plate, a bimetallic strip, a wire inlet end and a wire outlet end; the shell is also provided with at least one first connecting sheet and at least one second connecting sheet; the detection device also comprises a first driving piece, a second driving piece, a third driving piece, a detection mechanism, a first circuit board, a driving mechanism, a third connecting piece, a second circuit board and a microswitch; the detection mechanism, the driving mechanism and the microswitch are respectively in communication connection with the first circuit board. The utility model provides a technical scheme can promote miniature circuit breaker's protection precision and realize intelligent control, also can realize the unified monitoring, management, control and the monitoring divide-shut brake state to a plurality of miniature circuit breakers, improves work efficiency, promotes the security of distribution.
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
Magnetictrip realizes short circuit or overload protection, realizes overheating protection, however magnetictrip, bimetal leaf using bimetal leaf
Since itself is there are the difference of physical characteristic, there is also discreteness is higher, there is a problem of time delays and protection precision difference,
So that miniature circuit breaker remains security risk and the incomplete problem of protection to the protection of distribution system.Meanwhile tradition
There is also unknowable problems for the opening and closing state of miniature circuit breaker, and lack unified monitoring, pipe to every miniature circuit breaker
Reason and control, need artificial scene to check and control, take time and effort, working efficiency is low.In view of problem above, the utility model is public
A kind of miniature circuit breaker has been opened to solve the above problems.
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
In the prior art time delay and protection precision present in miniature circuit breaker it is poor, there are security risk and protection incomplete is asked
Topic promotes protection precision and realizes intelligent control, while the opening and closing state of miniature circuit breaker can be monitored in real time, and realizes
Unified monitoring, management and control to several miniature circuit breakers, improve working efficiency.
In order to achieve the above objectives, the utility model embodiment provides a kind of miniature circuit breaker, including shell, handle, point
Disconnection linkage, magnetictrip, moving contact, static contact, arc-chute, run-on tab, bimetal leaf, at least one end of incoming cables and extremely
A few leading-out terminal；The static contact is electrically connected with the magnetictrip；The bimetal leaf is electrically connected with the moving contact；
The shell is additionally provided at least one first connection sheet and at least one second connection sheet；It further include the first actuator and second
Actuator；The bimetal leaf and the first actuator are drivingly connected；Second actuator and first actuator driving connect
It connects；First actuator and the disjunction link mechanism are drivingly connected；First connection sheet is electrically connected with the bimetal leaf
It connects；Second connection sheet is electrically connected with the magnetictrip；It further include testing agency, first circuit board, driving mechanism；Institute
It states and is provided with first microprocessor and short circuit on first circuit board, the testing agency and driving mechanism are respectively with described first
Circuit board communication connection, the driving mechanism and second actuator are drivingly connected.Optionally, the testing agency is electric current
At least one of mutual inductor, voltage transformer, temperature sensor.Optionally, the driving mechanism is electromagnetic coil, electronic pushes away
At least one of bar, hydraulic stem, atmospheric pressure pole.Take this, is handled by the analysis in real time of first microprocessor described in first circuit board
The temperature signal of electric current, voltage signal and miniature circuit breaker in the acquired miniature circuit breaker route of testing agency, so
Disjunction or switching signal are exported afterwards to the driving mechanism, to drive by second actuator of driving mechanisms control and first
Moving part linkage drives the movement of disjunction link mechanism, drives the divide-shut brake of moving contact and static contact, is retaining breaker tradition overload
On the basis of overheating protection, the quick divide-shut brake of the intelligence of the miniature circuit breaker is realized, the protection for improving miniature circuit breaker is comprehensive
Property and protection precision, promote the safety of distribution system.
Further, first actuator includes first connecting portion and driving portion, first connecting portion and the bimetallic
Piece is drivingly connected, and driving portion and the disjunction link mechanism are drivingly connected.
Further, second actuator includes touch part, shaft and second connecting portion, touch part and the driving
Mechanism is drivingly connected, and second connecting portion and first connecting portion are drivingly connected.
It further, further include microswitch and third actuator, microswitch and the first circuit board communicate to connect.
Further, the third actuator includes third interconnecting piece and the 4th interconnecting piece, and third interconnecting piece and handle drive
Dynamic connection, the 4th interconnecting piece and the microswitch are drivingly connected.Take this, when miniature circuit breaker divide-shut brake, is driven by third
Moving part can drive microswitch in real time, transmit signal to the first circuit board, it is possible thereby to real-time monitoring by microswitch
The opening and closing state of miniature circuit breaker facilitates the monitoring and management of administrative staff.
It further, further include third connection sheet, first connection sheet passes through the third connection sheet and double gold
Belong to piece electrical connection.
It further, further include at least one first connector and at least one second connector, first connection sheet
It is connect by the first connector with the end of incoming cables；Second connection sheet is connect by the second connector with the leading-out terminal.
Optionally, first connector, the second connector can be plug, socket, screw or pressing line frame.
It further, further include second circuit board, second circuit board and short circuit communicate to connect, on second circuit board
It is provided with second processor, power supply, communication port.The communication port can be connect with external device communication；The power supply is used for
It powers at least one of first circuit board, second circuit board, testing agency, driving mechanism；Take this, the second circuit board
Several miniature circuit breakers can be connected by each short-circuit son, meanwhile, it can also be real by second processor described in second circuit board
When the testing agency transmitted by the first circuit board of analysis processing acquire each plug-in miniature circuit breaker route
In electric current, voltage signal and plug-in miniature circuit breaker temperature signal, then directly export or by first electricity
Road plate exports the driving mechanism of disjunction or switching signal to each miniature circuit breaker, to pass through the driving mechanisms control the
Two actuators and the linkage of the first actuator drive the movement of disjunction link mechanism, drive the divide-shut brake of moving contact and static contact, are protecting
On the basis of staying breaker tradition to overload overheating protection, realizes the quick divide-shut brake of intelligence of the plug-in miniature circuit breaker, mention
The protection of high plug-in miniature circuit breaker is comprehensive and protection precision, promotes the safety of distribution system, is achieved in several
Unified monitoring, management and the control of miniature circuit breaker, improve working efficiency, can also realize long-range control.
Optionally, first connection sheet, the second connection sheet, any group that third connection sheet is U-shaped or L-type or both
It closes.
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 time delay and protection precision it is poor, there are security risk and the incomplete problem of protection, promote the guarantor of miniature circuit breaker
Protect precision and realize the intelligent control of miniature circuit breaker, can also realize unified monitoring to several miniature circuit breakers, management and
Control, while the opening and closing state of miniature circuit breaker can be monitored in real time, facilitate administrative staff to monitor and manage, improves work effect
Rate promotes the safety of distribution system.
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.
Drawing reference numeral explanation:
1, shell；2, the second connection sheet；3, handle；4, disjunction link mechanism；5, magnetictrip；6, moving contact；7, quiet
Contact；8, arc-chute；9, run-on tab；10, bimetal leaf；11, third actuator；1101, third interconnecting piece；1102, the 4th connects
Socket part；12, the first actuator；1201, first connecting portion；1202, driving portion；13, the second connector；14, microswitch；15,
First connection sheet；16, the first connector；17, end of incoming cables；18, the second actuator；1801, touch part；1802, shaft；
1803, second connecting portion；19, driving mechanism；20, third connection sheet；21, short circuit；22, first circuit board；23, leading-out terminal；
24, testing agency, 25, first microprocessor.
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, handle 3, disjunction link mechanism 4, magnetictrip 5, dynamic touching
First 6, static contact 7, arc-chute 8, run-on tab 9, bimetal leaf 10, at least one end of incoming cables 17 and at least one leading-out terminal 23；Institute
Static contact 7 is stated to be electrically connected with the magnetictrip 5；The bimetal leaf 10 is electrically connected with the moving contact 6；The shell 1
It is additionally provided at least one the first connection sheet 15 and at least one second connection sheet 2；It further include that the first actuator 12 and second drives
Moving part 18；The bimetal leaf 10 and the first actuator 12 are drivingly connected；Second actuator 18 and first actuator
12 are drivingly connected；First actuator 12 is drivingly connected with the disjunction link mechanism 4；First connection sheet 15 with it is described
Bimetal leaf 10 is electrically connected；Second connection sheet 2 is electrically connected with the magnetictrip 5；It further include testing agency 24, first
Circuit board 22, driving mechanism 19；First microprocessor 25 and short circuit 21, the detection are provided on the first circuit board 22
Mechanism 24 and driving mechanism 19 are communicated to connect with the first circuit board 22 respectively, the driving mechanism 19 and second driving
Part 18 is drivingly connected.
Optionally, the testing agency 24 is at least one of current transformer, voltage transformer, temperature sensor.
Optionally, the driving mechanism 19 is at least one of electromagnetic coil, electric pushrod, hydraulic stem, atmospheric pressure pole.Take this, passes through
First microprocessor described in first circuit board analyzes the electricity handled in the acquired miniature circuit breaker route of testing agency in real time
Then the temperature signal of stream, voltage signal and miniature circuit breaker exports disjunction or switching signal to the driving mechanism, thus
The movement of disjunction link mechanism is driven by second actuator of driving mechanisms control and the linkage of the first actuator, drives moving contact
The intelligence of the miniature circuit breaker is realized on the basis of retaining breaker tradition overload overheating protection with the divide-shut brake of static contact
Can quick divide-shut brake, improve miniature circuit breaker protection is comprehensive and protection precision, promote the safety of distribution system.Such as institute
Stating first microprocessor in first circuit board can be short by being determined as compared with the rated values such as rated current according to current signal
Road electric current, overload current, leakage current, three phase unbalance current etc. match electrical anomaly, thus in real time by controlling the driving mechanism
It controls the second actuator and the linkage of the first actuator drives the movement of disjunction link mechanism, drive the separating brake of moving contact and static contact,
Distribution line is rapidly and accurately cut off, to realize that short-circuit protection, overload protection, earth leakage protective, three phase unbalance current etc. are matched
The accurate protection of electrical anomaly, improve miniature circuit breaker power distribution protection is comprehensive and protection precision, realize intelligent control.
Optionally, the first microprocessor, the second microprocessor can be MC68HC908AP32 chip, described first
Circuit board, second circuit board can be pcb board.
Further, first actuator 12 includes first connecting portion 1201 and driving portion 1202, first connecting portion
1201 are drivingly connected with the bimetal leaf 10, and driving portion 1202 and the disjunction link mechanism 4 are drivingly connected.
Further, second actuator 18 includes touch part 1801, shaft 1802 and second connecting portion 1803, touching
Dynamic portion 1801 is drivingly connected with the driving mechanism 19, and second connecting portion 1803 and first connecting portion 1201 are drivingly connected.
It further, further include microswitch 14 and third actuator 11, microswitch 14 and the first circuit board 22
Communication connection.
Further, the third actuator 11 includes third interconnecting piece 1101 and the 4th interconnecting piece 1102, third connection
Portion 1101 and handle 3 are drivingly connected, and the 4th interconnecting piece 1102 is drivingly connected with the microswitch 14.Take this, when miniature open circuit
When device divide-shut brake, microswitch can be driven by third actuator in real time, signal is transmitted to first electricity by microswitch
Road plate, it is possible thereby to which the opening and closing state of real-time monitoring miniature circuit breaker, can grasp point of each miniature circuit breaker in real time
"on" position facilitates the monitoring and management of administrative staff.
It further, further include third connection sheet 20, first connection sheet 15 passes through the third connection sheet 20 and institute
State the electrical connection of bimetal leaf 10.
It further, further include at least one the first connector 16 and at least one second connector 13, described first connects
Contact pin 15 is connect by the first connector 16 with the end of incoming cables 17；Second connection sheet 2 passes through the second connector 13 and institute
State the connection of leading-out terminal 23.
Optionally, first connector, the second connector can be plug, socket, screw or pressing line frame.
It further, further include second circuit board, second circuit board and short circuit 21 communicate to connect, second circuit board
On be provided with second processor, power supply, communication port, due to being readily appreciated that, in attached drawing and be not drawn into, the second circuit board can
It is set to portion in or beyond shell.The communication port can be connect with external device communication；The power supply be used for first circuit board,
The power supply of at least one of second circuit board, testing agency, driving mechanism；Take this, the second circuit board passes through each short circuit
Several miniature circuit breakers can be connected, meanwhile, it is logical that processing can also be analyzed by second processor described in second circuit board in real time
It crosses the testing agency that the first circuit board is transmitted and acquires electric current, voltage in each plug-in miniature circuit breaker route
The temperature signal of signal and plug-in miniature circuit breaker, then directly export or by the first circuit board output disjunction or
Switching signal to each miniature circuit breaker driving mechanism, to pass through second actuator of driving mechanisms control and first
Actuator linkage drives the movement of disjunction link mechanism, drives the divide-shut brake of moving contact and static contact, is retaining breaker tradition mistake
On the basis of carrying overheating protection, the quick divide-shut brake of intelligence of the plug-in miniature circuit breaker is realized, it is miniature disconnected to improve plug-in
The protection of road device is comprehensive and protection precision, promotes the safety of distribution system.Such as second micro- place in the second circuit board
Managing device can be according to current signal, by being determined as short circuit current, overload current, electric leakage compared with the rated values such as rated current
Stream, three phase unbalance current etc. match electrical anomaly, thus directly control in real time or by first circuit board control each it is miniature disconnected
The second actuator of driving mechanisms control of road device and the first actuator linkage drive disjunction link mechanism movement, driving moving contact with
The separating brake of static contact, rapidly and accurately cuts off distribution line, to realize short-circuit protection, overload protection, earth leakage protective, three-phase not
Balanced balanced current etc. matches the accurate protection of electrical anomaly, improve plug-in miniature circuit breaker power distribution protection is comprehensive and protection precision,
Realize intelligent control.It is achieved in unified monitoring, management and the control to several miniature circuit breakers, improves working efficiency,
Long-range control can be achieved.
Optionally, first connection sheet 15, the second connection sheet 2, third connection sheet 20 are appointing for U-shaped or L-type or both
Meaning combination.
Miniature circuit breaker provided by the utility model, can solve the time present in miniature circuit breaker in the prior art prolongs
Late and protection precision it is poor, there are security risk and protect incomplete problem, promote protection precision and the realization of miniature circuit breaker
The intelligent control of miniature circuit breaker, can also realize unified monitoring, management and control to several miniature circuit breakers, while can be with
The opening and closing state of real-time monitoring miniature circuit breaker facilitates administrative staff to monitor and manage, improves working efficiency, promotes power distribution system
The safety of system.
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 (10)
1. a kind of miniature circuit breaker, including shell (1), handle (3), disjunction link mechanism (4), magnetictrip (5), moving contact
(6), static contact (7), arc-chute (8), run-on tab (9), bimetal leaf (10), at least one end of incoming cables (17) and at least one go out
Line end (23)；The static contact (7) is electrically connected with the magnetictrip (5)；The bimetal leaf (10) and the moving contact
(6) it is electrically connected；It is characterized in that, the shell (1) be additionally provided at least one first connection sheet (15) and at least one second
Connection sheet (2)；It further include the first actuator (12) and the second actuator (18)；The bimetal leaf (10) and the first actuator
(12) it is drivingly connected；Second actuator (18) and first actuator (12) are drivingly connected；First actuator
(12) it is drivingly connected with the disjunction link mechanism (4)；First connection sheet (15) is electrically connected with the bimetal leaf (10)；
Second connection sheet (2) is electrically connected with the magnetictrip (5)；Further include testing agency (24), first circuit board (22),
Driving mechanism (19)；It is provided with first microprocessor (25) on the first circuit board (22) and short circuit is sub (21), the detection
Mechanism (24) and driving mechanism (19) are communicated to connect with the first circuit board (22) respectively, the driving mechanism (19) with it is described
Second actuator (18) is drivingly connected.
2. miniature circuit breaker according to claim 1, which is characterized in that the testing agency (24) be current transformer,
At least one of voltage transformer, temperature sensor.
3. miniature circuit breaker according to claim 1, which is characterized in that the driving mechanism (19) is electromagnetic coil, electricity
At least one of dynamic push rod, hydraulic stem, atmospheric pressure pole.
4. miniature circuit breaker according to claim 1, which is characterized in that first actuator (12) includes the first connection
Portion (1201) and driving portion (1202), first connecting portion (1201) and the bimetal leaf (10) are drivingly connected, driving portion
(1202) it is drivingly connected with the disjunction link mechanism (4).
5. miniature circuit breaker according to claim 4, which is characterized in that second actuator (18) includes touch part
(1801), shaft (1802) and second connecting portion (1803), touch part (1801) and the driving mechanism (19) are drivingly connected,
Second connecting portion (1803) and first connecting portion (1201) are drivingly connected.
6. miniature circuit breaker according to claim 1, which is characterized in that further include microswitch (14) and third actuator
(11), microswitch (14) and the first circuit board (22) communicate to connect.
7. miniature circuit breaker according to claim 6, which is characterized in that the third actuator (11) includes third connection
Portion (1101) and the 4th interconnecting piece (1102), third interconnecting piece (1101) and handle (3) are drivingly connected, the 4th interconnecting piece (1102)
It is drivingly connected with the microswitch (14).
8. miniature circuit breaker according to claim 1, which is characterized in that it further include third connection sheet (20), described first
Connection sheet (15) is electrically connected by the third connection sheet (20) with the bimetal leaf (10).
9. miniature circuit breaker according to claim 1, which is characterized in that further include at least one first connector (16) and
At least one second connector (13), first connection sheet (15) are connected by the first connector (16) and the end of incoming cables (17)
It connects；Second connection sheet (2) is connect by the second connector (13) with the leading-out terminal (23).
10. miniature circuit breaker according to claim 1, which is characterized in that further include second circuit board, second circuit board with
The short circuit sub (21) communicates to connect, and is provided with second processor, power supply, communication port on second circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821500057.8U CN208819818U (en) | 2018-09-06 | 2018-09-06 | Miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821500057.8U CN208819818U (en) | 2018-09-06 | 2018-09-06 | Miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208819818U true CN208819818U (en) | 2019-05-03 |
Family
ID=66277052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821500057.8U Active CN208819818U (en) | 2018-09-06 | 2018-09-06 | Miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208819818U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110137048A (en) * | 2019-05-30 | 2019-08-16 | 天津市中力神盾电子科技有限公司 | Intelligent circuit breaker |
| CN110233087A (en) * | 2019-05-30 | 2019-09-13 | 天津市中力神盾电子科技有限公司 | Link mechanism for actively controlling breaker switch |
| CN110880439A (en) * | 2018-09-06 | 2020-03-13 | 天津市中力神盾电子科技有限公司 | a miniature circuit breaker |
-
2018
- 2018-09-06 CN CN201821500057.8U patent/CN208819818U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110880439A (en) * | 2018-09-06 | 2020-03-13 | 天津市中力神盾电子科技有限公司 | a miniature circuit breaker |
| CN110137048A (en) * | 2019-05-30 | 2019-08-16 | 天津市中力神盾电子科技有限公司 | Intelligent circuit breaker |
| CN110233087A (en) * | 2019-05-30 | 2019-09-13 | 天津市中力神盾电子科技有限公司 | Link mechanism for actively controlling breaker switch |
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