CN2629206Y - Intelligent plastic shell leakage circuit breaker - Google Patents
Intelligent plastic shell leakage circuit breaker Download PDFInfo
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- CN2629206Y CN2629206Y CN 03216532 CN03216532U CN2629206Y CN 2629206 Y CN2629206 Y CN 2629206Y CN 03216532 CN03216532 CN 03216532 CN 03216532 U CN03216532 U CN 03216532U CN 2629206 Y CN2629206 Y CN 2629206Y
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Abstract
The utility model discloses an intellectual plastic-shell electric-leakage current breaker which can identify operation state and fault reason and can also display the working state and fault reason in Chinese and English, comprising a plastic shell. A current sampling and A/D conversion circuit, an electric-leakage detecting circuit and a working parameter setting circuit are arranged in the shell, a current transformer passes via the current sampling signal inputted by the A/D conversion circuit, a zero-sequence current transformer via the electric-leakage detecting signal inputted by the electric-leakage detecting circuit, the working parameter inputted by the working parameter setting circuit is set in signal input single chip circuit, the CPU of the single chip circuit performs the contrast, judgment and calculation according the set directions, so as to reach the purpose of identifying the working state and trip signal, and input and display the control signal, the control signal is transmitted to the magnet and breaking mechanism for performing breaking and closing, the display signal is transmitted to a LCD screen, the working state and the trip reason are directly displayed in Chinese and English visually, thereby providing reliable evidence for maintenance and fault solution.
Description
Technical field
The utility model relates to a kind of intelligent plastic casing residual current circuit breaker, particularly relates to a kind of intelligent plastic casing residual current circuit breaker that can show loaded line operating state and trip reason with Chinese and English.
Background technology
Residual current circuit breaker is a kind of electronic device that can be protected load equipment that is installed in the circuit; anomaly appears in circuit; during as electric leakage, overload or short circuit, residual current circuit breaker reaches the purpose of protection circuit, load equipment and personal safety by in time cutting off the electricity supply.The intelligent plastic casing residual current circuit breaker of prior art is an electric current action type electronic breaker; its main structure is made up of zero sequence current mutual inductor control disengaging deivce of earth leakage and the tripper that has overload and a short circuit; all part is installed in the plastic casing; when phenomenons such as electric leakage or person electric shock are arranged in the circuit of being protected take place; the zero sequence current mutual inductor output signal; and tripper action is cut off the electricity supply by disengaging deivce of earth leakage, reach protective effect.This intelligent plastic casing residual current circuit breaker is widely used for various places by people, as earth leakage protective, and the protection of overload and short circuit, to reach the purpose of effective protection circuit and load equipment and personal safety; But because this intelligent plastic casing residual current circuit breaker the time does not show trip reason in tripping operation, do not show the operating state of loaded line simultaneously yet, cause maintenance line and search the inconvenience of failure cause, and cause misjudgment easily.
The utility model content
The purpose of this utility model is to overcome the deficiency of prior art; a kind of intelligent plastic casing residual current circuit breaker is provided; when overload, short circuit and leak current fault appear in loaded line; can cut off the electricity supply rapidly; protection circuit and equipment and personal safety, and can show loaded line operating state and trip reason with Chinese and English.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of intelligent plastic casing residual current circuit breaker, and comprise and mould shell, in moulding shell, be provided with,
Current sampling circuit its role is to the electric current of circuit is taken a sample, and the analog signal of output sampling current;
Mould/number conversion circuit its role is to the current analog signal of input is carried out mould/number conversion, and the output current sampled signal;
Zero sequence current mutual inductor its role is to the electric current electric leakage situation of circuit is responded to, and the output electric leakage signal;
Electric-leakage detection circuit its role is to the electric leakage signal of input is amplified shaping, and the detection of electrical leakage signal of output high-low level;
Running parameter is provided with circuit, its role is to preestablish to running parameter, and the output services setting parameter signal;
Single chip circuit its role is to the current sampling signal to input, the detection of electrical leakage signal, and the running parameter setting signal compares, judgement, calculation process, and output control signal and shows signal;
Control Driver Circuit its role is to the control signal that the root a tree name is imported, and the electromagnet and the mechanical mechanism that opens circuit are produced disconnection or closed execution work;
Display circuit its role is to the shows signal that the root a tree name is imported, and drives the liquid crystal display on-screen-display message;
In current sampling circuit, the zero sequence current mutual inductor difference line attachment, the output of current sampling circuit is connected to the input of mould/number conversion circuit, the output of mould/number conversion circuit is connected to the input of single chip circuit, the output of zero sequence current mutual inductor is connected to the input of electric-leakage detection circuit, the output of electric-leakage detection circuit is connected to the input of single chip circuit, the output that running parameter is provided with circuit is connected to the input of single chip circuit, and the output of single chip circuit is connected to the input of control Driver Circuit, display circuit respectively.
Described single chip circuit mainly comprises central processor CPU, and central processor CPU is provided with input, output port, and its input, output port are connected with input, output signal respectively.
Described display circuit comprises being provided with and shows and the loaded line operating state to show the trip reason state.
Described display circuit comprises that being provided with Chinese shows loaded line operating state, trip reason state; With English display loaded line operating state, trip reason state.
Described current sampling circuit is made of current transformer.
Described current sampling circuit is divided into three the tunnel, is connected with the three-phase line of three-phase four-wire system respectively by three current transformers.
Described running parameter is provided with circuit and is provided with the input of rated current numerical value, and the current values input is doubly flowed in the input of overcurrent action delay time numerical value, doubly flows the input of electric current numerical value operate time, the input of short circuit current numerical value.
The beneficial effects of the utility model are; owing to adopted of the monitoring of the current sampling circuit of current transformer formation to the loaded line operating state; by the current sampling signal of single chip circuit that mainly constitutes to importing by central processor CPU; the detection of electrical leakage signal; the running parameter setting signal compares; judge and calculation process; send control signal to control Driver Circuit electromagnet and the mechanical mechanism that opens circuit are produced disconnect or closed execution work in; also sending shows signal gives display circuit and drives LCDs display working condition and trip reason; reached when loaded line breaks down; can cut off the electricity supply rapidly accomplishing; in the time of protection circuit and equipment and personal safety; and can understand the operating state and the trip reason of loaded line intuitively; provide reliable foundation for safeguarding and fixing a breakdown, brought many convenience to the user.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described in further detail; But a kind of intelligent plastic casing residual current circuit breaker of the present utility model is not limited to embodiment.
Fig. 1 is a schematic block circuit diagram of the present utility model;
Fig. 2 is the circuit theory diagrams that the utility model inserts loaded line.
Embodiment
Referring to Fig. 1, shown in Figure 2, intelligent plastic casing residual current circuit breaker of the present utility model comprises and moulds shell, in moulding shell, be provided with,
Current sampling circuit 1, the effect of current sampling circuit 1 are the electric current of circuit is taken a sample, and the analog signal of output sampling current; Mould/number conversion circuit 2, the effect of mould/number conversion circuit 2 are the current analog signal of input is carried out mould/number conversion, and the output current sampled signal; Zero sequence current mutual inductor 3, the effect of zero sequence current mutual inductor 3 are the electric current electric leakage situation of circuit is responded to, and the output electric leakage signal; Electric-leakage detection circuit 4, the effect of electric-leakage detection circuit 4 are the electric leakage signal of input is amplified shaping, and the detection of electrical leakage signal of output high-low level; Running parameter is provided with circuit 5, and the effect that running parameter is provided with circuit 5 is and can preestablishes running parameter, and the output services setting parameter signal; Single chip circuit 6, the effect of single chip circuit 6 are the current sampling signal to input, the detection of electrical leakage signal, and the running parameter setting signal compares, judgement, calculation process, and output control signal and shows signal; Control Driver Circuit 7, the effect of control Driver Circuit 7 are the control signal of root a tree name input, and the electromagnet and the mechanical mechanism that opens circuit are produced disconnection or closed execution work; Display circuit 8, the effect of display circuit 8 are the shows signal of root a tree name input, drive the liquid crystal display on-screen-display message; In current sampling circuit 1, the zero sequence current mutual inductor 3 difference line attachments, the output of current sampling circuit 1 is connected to the input of mould/number conversion circuit 2, mould/the output of number conversion circuit 2 is connected to the input of single chip circuit 6, the output of zero sequence current mutual inductor 3 is connected to the input of electric-leakage detection circuit 4, the output of electric-leakage detection circuit 4 is connected to the input of single chip circuit 6, the output that running parameter is provided with circuit 5 is connected to the input of single chip circuit 6, and the output of single chip circuit 6 is connected to the input of control Driver Circuit 7, display circuit 8 respectively.
Wherein,
In Fig. 2, the utility model is with the three-phase four-wire system line attachment, current transformer 11,12,13, line current is taken a sample, current transformer 11,12,13 links to each other with mould/number conversion circuit 2 respectively, and, after mould/number conversion circuit 2 is digital signal with the analog signal conversion of current sampling, send into the central processor CPU of single chip circuit 6 to the analog signal of mould/number conversion circuit 2 input currents sampling; Zero sequence current mutual inductor 3 links to each other with electric-leakage detection circuit 4, and the electric leakage signal that 4 pairs of zero sequence current mutual inductors 3 of electric-leakage detection circuit are got amplifies shaping, exports the high-low level pulse signal, and sends into the central processor CPU of single chip circuit 6; Running parameter be provided with circuit 5 can set rated current, overcurrent action delay time, doubly flow electric current, doubly flow electric current operate time, short circuit current, and the running parameter of setting is inputed to the central processor CPU of single chip circuit 6; In single chip circuit 6, the central processor CPU of single chip circuit 6 by the instruction that is provided with to current transformer 11,12,13 via the current sampling signal of mould/number conversion circuit 2 inputs, zero sequence current mutual inductor 3 via three road signals such as running parameter setting signal that detection of electrical leakage signal, the running parameter of electric-leakage detection circuit 4 inputs is provided with circuit 5 inputs compare, judgement and calculation process, reach the purpose of identification operating state and trip signal, and control signal and shows signal are provided; Control signal by single chip circuit 6 outputs is sent into control Driver Circuit 7, and control Driver Circuit 7 produces the electromagnet and the mechanical mechanism that opens circuit are produced disconnection or closed execution work; Shows signal by single chip circuit 6 outputs is sent into display circuit 8, the display drive signals of display circuit 8 drives LCDs work, demonstrate line work state and trip reason, wherein circuit operating state and failure cause have: circulation shows the real-time phase current values of three-phase, whenever is separated by for 3 seconds one by turns; Show characters such as " doubly stream ", " overcurrent ", " opening circuit ", " electric leakage ".
Since the utility model send control signal to control Driver Circuit electromagnet and the mechanical mechanism that opens circuit are produced disconnect or closed execution work in; also sending shows signal gives display circuit and drives LCDs display working condition and trip reason; reached when loaded line breaks down; can cut off the electricity supply rapidly accomplishing; in the time of protection circuit and equipment and personal safety; and can understand the operating state and the trip reason of loaded line intuitively; provide reliable foundation for safeguarding and fixing a breakdown, brought many convenience to the user.
Claims (7)
1. intelligent plastic casing residual current circuit breaker, it is characterized in that: it comprises:
Be used for current sampling circuit that line current is taken a sample, be used for input signal is carried out the mould/number conversion circuit of mould/number conversion, zero sequence current mutual inductor, be used for the electric leakage signal of input is amplified shaping and exports the electric-leakage detection circuit of high-low level signal, running parameter is provided with circuit, be used for to input signal compare, judgement, calculation process and export control signal and the single chip circuit of shows signal, be used for the electromagnet and the mechanical mechanism that opens circuit are produced the control Driver Circuit of the execution work of disconnection or closure, display circuit;
In current sampling circuit, the zero sequence current mutual inductor difference line attachment, the output of current sampling circuit is connected to the input of mould/number conversion circuit, the output of mould/number conversion circuit is connected to the input of single chip circuit, the output of zero sequence current mutual inductor is connected to the input of electric-leakage detection circuit, the output of electric-leakage detection circuit is connected to the input of single chip circuit, the output that running parameter is provided with circuit is connected to the input of single chip circuit, and the output of single chip circuit is connected to the input of control Driver Circuit, display circuit respectively.
2. intelligent plastic casing residual current circuit breaker according to claim 1, it is characterized in that: described single chip circuit mainly comprises central processor CPU, central processor CPU is provided with input, output port, and its input, output port are connected with input, output signal respectively.
3. intelligent plastic casing residual current circuit breaker according to claim 1 is characterized in that: described display circuit comprises being provided with and shows and the loaded line operating state to show the trip reason state.
4. according to claim 1 or 3 described intelligent plastic casing residual current circuit breaker, it is characterized in that: described display circuit comprises that being provided with Chinese shows loaded line operating state, trip reason state; With English display loaded line operating state, trip reason state.
5. intelligent plastic casing residual current circuit breaker according to claim 1 is characterized in that: described current sampling circuit is made of current transformer.
6. intelligent plastic casing residual current circuit breaker according to claim 1 or 5, it is characterized in that: described current sampling circuit is divided into three the tunnel, is connected with the three-phase line of three-phase four-wire system respectively by three current transformers.
7. intelligent plastic casing residual current circuit breaker according to claim 1, it is characterized in that: described running parameter is provided with circuit and is provided with the input of rated current numerical value, the input of overcurrent action delay time numerical value, doubly flow the current values input, doubly flow the input of electric current numerical value operate time, the input of short circuit current numerical value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03216532 CN2629206Y (en) | 2003-04-16 | 2003-04-16 | Intelligent plastic shell leakage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03216532 CN2629206Y (en) | 2003-04-16 | 2003-04-16 | Intelligent plastic shell leakage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2629206Y true CN2629206Y (en) | 2004-07-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03216532 Expired - Fee Related CN2629206Y (en) | 2003-04-16 | 2003-04-16 | Intelligent plastic shell leakage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2629206Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101047081B (en) * | 2006-03-30 | 2010-09-15 | 三菱电机株式会社 | Circuit breaker |
| CN101989722A (en) * | 2010-12-02 | 2011-03-23 | 饶学进 | Power socket with leakage current measurement protective device |
| CN102170107A (en) * | 2011-05-05 | 2011-08-31 | 浙江德菱科技有限公司 | Integral intelligent moulded case circuit breaker with residual current protection action |
| US8749327B2 (en) | 2008-09-18 | 2014-06-10 | General Electric Company | Circuit interrupter trip apparatus and method |
| CN104009548A (en) * | 2014-06-17 | 2014-08-27 | 遵义长征电器开关设备有限责任公司 | Intelligent controller of low-voltage circuit breaker capable of achieving communication |
| CN104749416A (en) * | 2015-03-16 | 2015-07-01 | 珠海格力电器股份有限公司 | Electricity leakage detecting protecting circuit |
| CN105449630A (en) * | 2015-12-31 | 2016-03-30 | 温州佳华仪表电气科技有限公司 | High-performance electric leakage electric control box |
| CN107294060A (en) * | 2017-07-25 | 2017-10-24 | 天津贝罗尼生物科技有限公司 | A kind of air purifier earth leakage protective device |
| CN107393782A (en) * | 2017-08-14 | 2017-11-24 | 国家电网公司 | Primary cut-out |
-
2003
- 2003-04-16 CN CN 03216532 patent/CN2629206Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101047081B (en) * | 2006-03-30 | 2010-09-15 | 三菱电机株式会社 | Circuit breaker |
| US8749327B2 (en) | 2008-09-18 | 2014-06-10 | General Electric Company | Circuit interrupter trip apparatus and method |
| CN101677048B (en) * | 2008-09-18 | 2015-12-09 | 通用电气公司 | Circuit interrupter trip apparatus and method |
| CN101989722A (en) * | 2010-12-02 | 2011-03-23 | 饶学进 | Power socket with leakage current measurement protective device |
| CN102170107A (en) * | 2011-05-05 | 2011-08-31 | 浙江德菱科技有限公司 | Integral intelligent moulded case circuit breaker with residual current protection action |
| CN102170107B (en) * | 2011-05-05 | 2013-08-14 | 浙江德菱科技有限公司 | Integral intelligent moulded case circuit breaker with residual current protection action |
| CN104009548A (en) * | 2014-06-17 | 2014-08-27 | 遵义长征电器开关设备有限责任公司 | Intelligent controller of low-voltage circuit breaker capable of achieving communication |
| CN104749416A (en) * | 2015-03-16 | 2015-07-01 | 珠海格力电器股份有限公司 | Electricity leakage detecting protecting circuit |
| CN105449630A (en) * | 2015-12-31 | 2016-03-30 | 温州佳华仪表电气科技有限公司 | High-performance electric leakage electric control box |
| CN107294060A (en) * | 2017-07-25 | 2017-10-24 | 天津贝罗尼生物科技有限公司 | A kind of air purifier earth leakage protective device |
| CN107393782A (en) * | 2017-08-14 | 2017-11-24 | 国家电网公司 | Primary cut-out |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040728 Termination date: 20100416 |