CN110444453A - Plug-in miniature circuit breaker - Google Patents
Plug-in miniature circuit breaker Download PDFInfo
- Publication number
- CN110444453A CN110444453A CN201810448179.5A CN201810448179A CN110444453A CN 110444453 A CN110444453 A CN 110444453A CN 201810448179 A CN201810448179 A CN 201810448179A CN 110444453 A CN110444453 A CN 110444453A
- Authority
- CN
- China
- Prior art keywords
- plug
- connector
- circuit breaker
- miniature circuit
- module head
- 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.)
- Pending
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/08—Terminals; Connections
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- Breakers (AREA)
Abstract
The invention provides a plug-in miniature circuit breaker, which comprises a module head and a base, wherein the module head is connected with the base through a connecting rod; the module head comprises a first shell, a handle, a breaking connecting rod mechanism, a thermal-magnetic release, a breaking contact and an arc extinguishing grid; the base comprises a second shell, a wire inlet end and a wire outlet end; the module head is also provided with a first connector and a second connector; the module head is connected with the base in an inserting manner through a first connector and a second connector; the device also comprises a current detection device and an electromagnetic driving mechanism; the circuit board is provided with a microprocessor and at least one third plug connector connected with the microprocessor; the circuit board is in plug connection with the current detection device and the electromagnetic driving mechanism through a third plug connector; the invention can improve the protection precision of the miniature circuit breaker and realize intelligent control; meanwhile, the quick plugging can be realized, the working efficiency is improved, and the continuity of power supply is improved; and centralized management and control of a plurality of miniature circuit breakers can be realized, and the management efficiency is improved.
Description
Technical field
The invention belongs to breaker technical fields, and in particular to a kind of plug-in 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；And traditional miniature circuit breaker generallys use standard clamp rail mounting means, by miniature open circuit
Device bottom is connected on calliper, then connects inlet wire and outlet by modes such as attachment screws.However, when miniature circuit breaker occurs
Failure needs repairing, or when re-replacing, needs entirely to remove, and causes maintenance replacement inconvenient, working efficiency is low, influences to supply
The continuity of electricity；In addition, current miniature circuit breaker generallys use the mode for being respectively set and managing respectively, but for largely pacifying
For the miniature circuit breaker of dress, but it is mixed and disorderly there is managing, it is not easy to the problem of managing concentratedly.In view of problem above, the present invention
A kind of plug-in miniature circuit breaker is disclosed to solve the above problems.
Summary of the invention
The purpose of the present invention is to overcome the defects in the prior art, provides a kind of plug-in miniature circuit breaker, on the one hand
Can solve protection precision present in miniature circuit breaker in the prior art it is poor, there are security risk and protection incomplete is asked
Topic promotes protection precision and realizes intelligent control；On the other hand fast insert-pull may be implemented, maintains easily or replaces, improve work
Make efficiency, promotes power supply continuity；Further, it is also possible to realize the centralized management and control of several miniature circuit breakers, pipe is improved
Efficiency is managed, the Combination Design of designer's different size miniature circuit breaker is facilitated.
In order to achieve the above objectives, the embodiment of the invention provides a kind of plug-in miniature circuit breakers, including module head and bottom
Seat；The module head includes first shell, handle, disjunction link mechanism, Pyromagnetic release, break contact and arc-chute；It is described
Pedestal includes second shell, at least one end of incoming cables and at least one leading-out terminal；The module head be additionally provided at least one
One connector and at least one second connector；The module head passes through first connector and the second connector and the bottom
Seat plug connection；It further include current detection means and electromagnetic drive mechanism；The electromagnetic drive mechanism and the disjunction connecting rod machine
Structure and/or the break contact are drivingly connected；Further include wiring board, the wiring board be provided with microprocessor and with micro- place
At least one third plug connector that reason device is connected；The wiring board passes through the third plug connector and the current detection means
With electromagnetic drive mechanism plug connection；Optionally, the third plug connector also may include at least two connectors, one of them connects
Plug-in unit and the current detection means plug connection, another connector and the electromagnetic drive mechanism plug connection；Pass through line
Microprocessor described in the plate of road analyzes the electricity handled in the acquired plug-in miniature circuit breaker route of current detection means in real time
Signal is flowed, then exports disjunction or switching signal to the electromagnetic drive mechanism, to control by the electromagnetic drive mechanism
Disjunction link mechanism and/or break contact movement, realize the intelligent divide-shut brake of the plug-in miniature circuit breaker, improve and insert
Pull out formula miniature circuit breaker protection is comprehensive and protection precision.
Optionally, the current detection means is set to the module head or pedestal；The electromagnetic drive mechanism is set to
The module head or pedestal.
Optionally, the current detection means can be current transformer, and the electromagnetic drive mechanism can be electromagnet,
The connector can be plug, socket, screw or pressing line frame.
Optionally, the first shell part of the module head is plugged in the second shell of the pedestal；Or the module
The first shell of head is all plugged in the second shell of the pedestal.
Further, the third plug connector is connected at least one set of current detection means and electromagnetic drive mechanism, corresponding
Several plug-in miniature circuit breaker pedestals and module head can be connected, the concentrate tube that several miniature circuit breakers may be implemented is taken this
Reason and control, improve the efficiency of management, facilitate the Combination Design of designer's different size miniature circuit breaker.
Further, the wiring board is additionally provided with signal terminal, the signal terminal by wiring board with it is described
Microprocessor is connected, for connecting with external device communication.
Further, the wiring board is additionally provided with supply terminals, and the supply terminals is connected with the wiring board
It connects, for powering at least one of the wiring board, electromagnetic drive mechanism.
Further, first connector and the second connector are respectively arranged at the two sides of the module head.
Further, first connector and the second connector are set to the same side of the module head.
Further, first connector is electrically connected with the end of incoming cables or the leading-out terminal.
Further, second connector is electrically connected with the end of incoming cables or the leading-out terminal.
Further, the break contact includes moving contact and static contact.
It further, further include a fixed plate, the wiring board is set in fixed plate, and the fixed plate is provided at least
One plug-in miniature circuit breaker above-mentioned, correspondence can connect several plug-in miniature circuit breaker pedestals and module head, take this
The centralized management and control of several miniature circuit breakers may be implemented, improve the efficiency of management, facilitate designer's different size micro-
The Combination Design of type breaker.
Optionally, the fixed plate can be iron plate.
It is miniature in the prior art to have the beneficial effect that one side can solve for plug-in miniature circuit breaker provided by the invention
Protection precision present in breaker is poor, there are security risk and the incomplete problem of protection, promotion plug-in miniature circuit breakers
Protection precision and realize plug-in miniature circuit breaker intelligent control；On the other hand, by designing the module head and pedestal
The fast insert-pull of module head and pedestal may be implemented in structure, solves miniature circuit breaker maintenance in the prior art or replacement not side
The problem of face, significantly improves the working efficiency of staff, promotes the continuity of power supply；Further, it is also possible to realize that several are micro-
The centralized management and control of type breaker improve the efficiency of management, the combination of designer's different size miniature circuit breaker are facilitated to set
Meter.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described.It should be evident that drawings in the following description are only some embodiments of the invention, for this field
For those of ordinary skill, without creative efforts, other attached drawings can also be obtained according to these figures.
Fig. 1 is the structural schematic diagram for the plug-in miniature circuit breaker that the embodiment of the present invention one provides.
Fig. 2 is the structural schematic diagram of plug-in miniature circuit breaker provided by Embodiment 2 of the present invention.
Fig. 3 is the structural schematic diagram for the plug-in miniature circuit breaker that the embodiment of the present invention three provides.
Fig. 4 is the structural schematic diagram for the plug-in miniature circuit breaker that the embodiment of the present invention four provides.
Fig. 5 is the structural schematic diagram for the plug-in miniature circuit breaker that the embodiment of the present invention five provides.
Fig. 6 is the structural schematic diagram for the plug-in miniature circuit breaker that the embodiment of the present invention six provides.
Drawing reference numeral explanation:
1, module head；101, first shell；102, handle；103, disjunction link mechanism；104, Pyromagnetic release；105, divide
Disconnected contact；106, arc-chute；107, the first connector；108, the second connector；2, pedestal；201, second shell；202, inlet wire
End；203, leading-out terminal；204, current detection means；205, electromagnetic drive mechanism；3, wiring board；301, microprocessor；302,
Three plug connectors；303, signal terminal；304, supply terminals；4, fixed plate.
Specific embodiment
Plug-in miniature circuit breaker of the invention is described in detail with reference to the accompanying drawing.
Embodiment one
The structural schematic diagram of the plug-in miniature circuit breaker of the present embodiment one is shown in Fig. 1.As shown in Figure 1, of the invention
Preferable specific embodiment one plug-in miniature circuit breaker, including module head 1 and pedestal 2；The module head 1 includes first
Shell 101, handle 102, disjunction link mechanism 103, Pyromagnetic release 104, break contact 105 and arc-chute 106；The pedestal
2 include second shell 201 and at least one end of incoming cables 202 and at least one leading-out terminal 203；The module head 1 be additionally provided with to
Few first connector 107 and at least one second connector 108；The module head 1 passes through 107 He of the first connector
Second connector 108 and 2 plug connection of pedestal；It further include current detection means 204 and electromagnetic drive mechanism 205；It is described
Electromagnetic drive mechanism 205 and the disjunction link mechanism 103 and/or the break contact 105 are drivingly connected；It further include wiring board
3, at least one third plug connector that the wiring board 3 is provided with microprocessor 301 and is connected with the microprocessor 301
302；The wiring board 3 is inserted by the third plug connector 302 with the current detection means 204 and electromagnetic drive mechanism 205
It connects in succession；Optionally, the third plug connector also may include at least two connectors, and one of connector and the electric current are examined
Survey device plug connection, another connector and the electromagnetic drive mechanism plug connection；Pass through microprocessor described in wiring board
Analysis handles the current signal in the acquired plug-in 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
The break contact movement, realizes the intelligent divide-shut brake of the plug-in miniature circuit breaker, improves plug-in miniature circuit breaker
Protect comprehensive and protection precision.Such as in the wiring board microprocessor can according to current signal, by with rated current
Equal rated values are relatively determined as short circuit current, overload current, leakage current, three phase unbalance current etc. with electrical anomaly, thus in real time
Disjunction link mechanism 103 and/or 105 separating brake of the break contact or combined floodgate are controlled by controlling the electromagnetic drive mechanism 205
Movement, rapidly and accurately cuts off distribution line, to realize short-circuit protection, overload protection, earth leakage protective, three phase unbalance current
Deng the accurate protection for matching electrical anomaly, the power distribution protection of raising plug-in miniature circuit breaker is comprehensive and protection precision, realization are intelligent
Control.
Optionally, the current detection means 204 is set to the module head 1 or pedestal 2；The electromagnetic drive mechanism
205 are set to the module head 1 or pedestal 2；In the present embodiment, the current detection means 204 and electromagnetic drive mechanism 205 are set
It is placed in the module head 1.
Optionally, the current detection means 204 can be current transformer, and the electromagnetic drive mechanism 205 can be
Electromagnet, the microprocessor can be MC68HC908AP32 chip, and the wiring board can be pcb board, and the connector can
Think plug, socket, screw or pressing line frame.
Optionally, the first shell part of module head described in the present embodiment is plugged in the second shell of the pedestal 2.
Further, the third plug connector 302 is connected at least one set of current detection means 204 and electromagnetic drive mechanism
205, correspondence can connect several plug-in miniature circuit breaker pedestals and module head, take this that several miniature circuit breakers may be implemented
Centralized management and control, improve the efficiency of management, facilitate the Combination Design of designer's different size miniature circuit breaker.
Further, the wiring board 3 is additionally provided with signal terminal 303, and the signal terminal 303 passes through wiring board
It is connected with the microprocessor 301, for being connect with external device communication.
Further, the wiring board 3 is additionally provided with supply terminals 304, the supply terminals 304 and the route
Plate 3 is connected, for powering at least one of the wiring board, electromagnetic drive mechanism.
Further, first connector 107 and the second connector 108 are respectively arranged at the two sides of the module head 1
Face.
Further, first connector 107 and the second connector 108 are set to the same side of the module head 1.
Further, first connector 107 is electrically connected with the end of incoming cables 202 or the leading-out terminal 203.
Further, second connector 108 is electrically connected with the end of incoming cables 202 or the leading-out terminal 203.
Further, the break contact 104 includes moving contact and static contact.
It further, further include a fixed plate 4, the wiring board 3 is set in fixed plate 4, and the fixed plate 4 is provided with
At least one plug-in miniature circuit breaker above-mentioned, correspondence can connect several plug-in miniature circuit breaker pedestals and module head,
Take this to may be implemented the centralized management and control of several miniature circuit breakers, improve the efficiency of management, designer's difference is facilitated to advise
The Combination Design of lattice miniature circuit breaker.
Optionally, the fixed plate can be iron plate.
Embodiment two
The structural schematic diagram of the plug-in miniature circuit breaker of the present embodiment two is shown in Fig. 2.As shown in Fig. 2, of the invention
Preferable specific embodiment two plug-in miniature circuit breaker, with identical part in embodiment illustrated in fig. 1 one using identical
Appended drawing reference be indicated.Only difference is illustrated below, in the present embodiment, 204 He of current detection means
Electromagnetic drive mechanism 205 is set to pedestal 2.
Embodiment three
The structural schematic diagram of the plug-in miniature circuit breaker of the present embodiment three is shown in Fig. 3.As shown in figure 3, of the invention
Preferable specific embodiment three plug-in miniature circuit breaker, with identical part in embodiment illustrated in fig. 1 one using identical
Appended drawing reference be indicated.Only difference is illustrated below, in the present embodiment, the current detection means 204 is set
It is placed in pedestal 2, the electromagnetic drive mechanism 205 is set to module head 1.
Example IV
The structural schematic diagram of the plug-in miniature circuit breaker of the present embodiment four is shown in Fig. 4.As shown in figure 4, of the invention
Preferable specific embodiment four plug-in miniature circuit breaker, including module head 1 and pedestal 2；The module head 1 includes first
Shell 101, handle 102, disjunction link mechanism 103, Pyromagnetic release 104, break contact 105 and arc-chute 106；The pedestal
2 include second shell 201, at least one end of incoming cables 202 and at least one leading-out terminal 203；The module head 1 is additionally provided at least
One the first connector 107 and at least one second connector 108；The module head 1 passes through first connector 107 and the
Two connectors 108 and 2 plug connection of pedestal；It further include current detection means 204 and electromagnetic drive mechanism 205；The electricity
Magnetic driving mechanism 205 and the disjunction link mechanism 103 and/or the break contact 105 are drivingly connected；It further include wiring board 3,
At least one third plug connector 302 that the wiring board 3 is provided with microprocessor 301 and is connected with the microprocessor 301；
The wiring board 3 is connected by the third plug connector 302 with the current detection means 204 and 205 grafting of electromagnetic drive mechanism
It connects；Optionally, the third plug connector also may include at least two connectors, and one of connector and the current detecting fill
Plug connection is set, another connector and the electromagnetic drive mechanism plug connection；It is real-time by microprocessor described in wiring board
Analysis handles the current signal in the acquired plug-in miniature circuit breaker route of current detection means, then output disjunction or
Switching signal is to the electromagnetic drive mechanism, to control disjunction link mechanism and/or described by the electromagnetic drive mechanism
Break contact movement, realizes the intelligent divide-shut brake of the plug-in miniature circuit breaker, improves the protection of plug-in miniature circuit breaker
Comprehensive and protection precision.Such as microprocessor can be according to current signal, by equal with rated current in the wiring board
Definite value is relatively determined as short circuit current, overload current, leakage current, three phase unbalance current etc. with electrical anomaly, to pass through in real time
It controls the electromagnetic drive mechanism 205 and controls disjunction link mechanism 103 and/or 105 separating brake of the break contact or feed motion,
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 plug-in miniature circuit breaker power distribution protection is comprehensive and protection precision, realize intelligent control.
Optionally, the current detection means 204 is set to the module head 1 or pedestal 2；The electromagnetic drive mechanism
205 are set to the module head 1 or pedestal 2；In the present embodiment, the current detection means 204 and electromagnetic drive mechanism 205 are set
It is placed in the pedestal 2.
Optionally, the current detection means 204 can be current transformer, and the electromagnetic drive mechanism 205 can be
Electromagnet, the microprocessor can be MC68HC908AP32 chip, and the wiring board is pcb board, and the connector can be
Plug, socket, screw or pressing line frame.Optionally, the first shell of module head described in the present embodiment two is all plugged in the bottom
In the second shell of seat.
Further, the third plug connector 302 is connected at least one set of current detection means 204 and electromagnetic drive mechanism
205, correspondence can connect several plug-in miniature circuit breaker pedestals and module head, take this that several miniature circuit breakers may be implemented
Centralized management and control, improve the efficiency of management, facilitate the Combination Design of designer's different size miniature circuit breaker.
Further, the wiring board 3 is additionally provided with signal terminal 303, and the signal terminal 303 passes through wiring board
It is connected with the microprocessor 301, for being connect with external device communication.
Further, the wiring board 3 is additionally provided with supply terminals 304, the supply terminals 304 and the route
Plate 3 is connected, for powering at least one of the wiring board, electromagnetic drive mechanism.
Further, first connector 107 and the second connector 108 are respectively arranged at the two sides of the module head 1
Face.
Further, first connector 107 and the second connector 108 are set to the same side of the module head 1.
Further, first connector 107 is electrically connected with the end of incoming cables 202 or the leading-out terminal 203.
Further, second connector 108 is electrically connected with the end of incoming cables 202 or the leading-out terminal 203.
Further, the break contact 104 includes moving contact and static contact.
It further, further include a fixed plate 4, the wiring board 3 is set in fixed plate 4, and the fixed plate 4 is provided with
At least one plug-in miniature circuit breaker above-mentioned, correspondence can connect several plug-in miniature circuit breaker pedestals and module head,
Take this to may be implemented the centralized management and control of several miniature circuit breakers, improve the efficiency of management, designer's difference is facilitated to advise
The Combination Design of lattice miniature circuit breaker.
Optionally, the fixed plate can be iron plate.
Embodiment five
The structural schematic diagram of the plug-in miniature circuit breaker of the present embodiment five is shown in Fig. 5.As shown in figure 5, of the invention
Preferable specific embodiment five plug-in miniature circuit breaker, with identical part in embodiment illustrated in fig. 4 four using identical
Appended drawing reference be indicated.Only difference is illustrated below, in the present embodiment, the current detection means 204 is set
It is placed in module head 1, the electromagnetic drive mechanism 205 is set to pedestal 2.
Embodiment six
The structural schematic diagram of the plug-in miniature circuit breaker of the present embodiment six is shown in Fig. 6.As shown in Fig. 2, of the invention
Preferable specific embodiment six plug-in miniature circuit breaker, with identical part in embodiment illustrated in fig. 4 four using identical
Appended drawing reference be indicated.Only difference is illustrated below, in the present embodiment, the current detection means 204 is set
It is placed in pedestal 2, the electromagnetic drive mechanism 205 is set to module head 1.
Plug-in miniature circuit breaker provided by the invention, on the one hand can solve present in miniature circuit breaker in the prior art
Protection precision it is poor, there are security risk and the incomplete problem of protection, promoted plug-in miniature circuit breaker protection precision and
Realize the intelligent control of plug-in miniature circuit breaker；On the other hand, it by designing the module head and understructure, may be implemented
The fast insert-pull of module head and pedestal solves the problems, such as miniature circuit breaker maintenance in the prior art or replacement not aspect, significantly
The working efficiency for improving staff, promotes the continuity of power supply；Further, it is also possible to realize the concentration of several miniature circuit breakers
It manages and controls, improves the efficiency of management, facilitate the Combination Design of designer's different size miniature circuit breaker.
More than, only specific embodiments of the present invention, but scope of protection of the present invention is not limited thereto, and it is any to be familiar with sheet
Those skilled in the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all cover at this
Within the protection scope of invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (10)
1. a kind of plug-in miniature circuit breaker, including module head (1) and pedestal (2)；The module head (1) includes first shell
(101), handle (102), disjunction link mechanism (103), Pyromagnetic release (104), break contact (105) and arc-chute (106)；
The pedestal (2) includes second shell (201), at least one end of incoming cables (202) and at least one leading-out terminal (203)；Its feature
It is, the module head (1) is additionally provided at least one first connector (107) and at least one second connector (108)；Institute
It states module head (1) and passes through first connector (107) and the second connector (108) and the pedestal (2) plug connection；Also wrap
Include current detection means (204) and electromagnetic drive mechanism (205)；The electromagnetic drive mechanism (205) and the disjunction connecting rod machine
Structure (103) and/or the break contact (105) are drivingly connected；It further include wiring board (3), the wiring board (3) is provided with micro- place
Reason device (301) and at least one the third plug connector (302) being connected with the microprocessor (301)；The wiring board (3) is logical
Cross the third plug connector (302) and the current detection means (204) and electromagnetic drive mechanism (205) plug connection.
2. plug-in miniature circuit breaker according to claim 1, which is characterized in that third plug connector (302) connection
There are at least one set of current detection means (204) and electromagnetic drive mechanism (205).
3. plug-in miniature circuit breaker according to claim 1, which is characterized in that the wiring board (3) is additionally provided with letter
Number terminals (303), the signal terminal (303) are connected with the microprocessor (301).
4. plug-in miniature circuit breaker according to claim 1, which is characterized in that the wiring board (3) is additionally provided with electricity
Source terminals (304), the supply terminals (304) are connected with the wiring board (3).
5. plug-in miniature circuit breaker according to claim 1, which is characterized in that first connector (107) and
Two connectors (108) are respectively arranged at the two sides of the module head (1).
6. plug-in miniature circuit breaker according to claim 1, which is characterized in that first connector (107) and
Two connectors (108) are set to the same side of the module head (1).
7. plug-in miniature circuit breaker according to claim 1, which is characterized in that first connector (107) and institute
State end of incoming cables (202) or the leading-out terminal (203) electrical connection；Second connector (108) and the end of incoming cables (202) or institute
State leading-out terminal (203) electrical connection.
8. plug-in miniature circuit breaker according to claim 1, which is characterized in that the current detection means (204) sets
It is placed in the module head (1) or pedestal (2)；The electromagnetic drive mechanism (205) is set to the module head (1) or pedestal (2).
9. plug-in miniature circuit breaker according to claim 1, which is characterized in that the break contact (104) includes dynamic
Contact and static contact.
10. plug-in miniature circuit breaker according to claim 1, which is characterized in that it further include a fixed plate (4), it is described
Wiring board (3) is set on fixed plate (4), and the fixed plate (4) is provided with described in any one of at least one claim 1-9
Plug-in miniature circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810448179.5A CN110444453A (en) | 2018-05-06 | 2018-05-06 | Plug-in miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810448179.5A CN110444453A (en) | 2018-05-06 | 2018-05-06 | Plug-in miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110444453A true CN110444453A (en) | 2019-11-12 |
Family
ID=68427297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810448179.5A Pending CN110444453A (en) | 2018-05-06 | 2018-05-06 | Plug-in miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110444453A (en) |
-
2018
- 2018-05-06 CN CN201810448179.5A patent/CN110444453A/en active Pending
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