CN103532094A - Fireproof electric leakage protector based on single chip microcomputer - Google Patents
Fireproof electric leakage protector based on single chip microcomputer Download PDFInfo
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- CN103532094A CN103532094A CN201310476822.2A CN201310476822A CN103532094A CN 103532094 A CN103532094 A CN 103532094A CN 201310476822 A CN201310476822 A CN 201310476822A CN 103532094 A CN103532094 A CN 103532094A
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Abstract
The invention discloses a fireproof electric leakage protector based on a single chip microcomputer. The fireproof electric leakage protector comprises a detecting circuit module and a power supply circuit module, wherein the detecting circuit module comprises a voltage and current detecting circuit, a single chip microcomputer circuit, a warning circuit, an electric leakage detecting circuit, a press key setting circuit and a motor control circuit, the signal output end of the voltage and current detecting circuit is connected with the signal input end of the single chip microcomputer circuit, the signal output end of the single chip microcomputer is connected with the signal input of the warning circuit, the electric leakage detecting circuit, the press key setting circuit and the motor control circuit are respectively connected with the signal input end of the single chip microcomputer circuit, and the power supply circuit module comprises a power-supply power supply power source circuit, a voltage and current detecting circuit, a single chip microcomputer circuit and a warning circuit. The fireproof electric leakage protector has the advantages that through the circuit design, the circuit layout is very simple, when the electric leakage of the circuit is detected, the response can be intuitively and fast made, and the warning is sent out.
Description
Technical field
The present invention relates to a kind of SCM Based fire-proof electricity leakage protector.
Background technology
Fire-proof electricity leakage protector is power circuit to be implemented to the device of protection; it detects voltage, electric current and the electric leakage of three-phase alternating current, when voltage, electric current and the electric leakage of three-phase alternating current are broken down, and the circuit of cutting off the electricity supply; thereby protection electrical appliance, the possibility of minimizing fire.It is widely used in the industries such as building, electric power, fire-fighting, communication, wherein in residential houses and private residences for commercial use, has a wide range of applications, and the occasion of its product application has determined that its reliability is particularly important.Country has formulated respective standard at present, requires must use fire-proof electricity leakage protector under construction.The circuit layout of current existing fire-proof electricity leakage protector is too complicated, and the warning message to the detection of under-voltage, overvoltage, overcurrent and electric leakage can not be intuitively and inform efficiently monitor staff.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides a kind of SCM Based fire-proof electricity leakage protector, its circuit layout is fairly simple, when circuit electric leakage being detected, can intuitively and efficiently reflect and give the alarm.
Technical scheme: for achieving the above object, the present invention is a kind of SCM Based fire-proof electricity leakage protector, comprises testing circuit module and power supply circuits module.
Voltage and current detection circuit: realize the detection to three-phase alternating current piezoelectric voltage, electric current and electric leakage, to realize the protection to overvoltage, under-voltage, overcurrent and electric leakage.
Circuit for controlling motor: in protector, control protector with the rotating of alternating current machine and forward the break-make that power supply circuits are realized in corresponding position to.
Described testing circuit module comprises that voltage and current detection circuit, single chip circuit, warning circuit, electric-leakage detection circuit, button arrange circuit and circuit for controlling motor; The signal output part of described voltage and current detection circuit is connected with the signal input part of single chip circuit, and the signal output part of single-chip microcomputer is connected with the input of the signal of warning circuit; Described electric-leakage detection circuit, button arrange circuit and are connected with the signal input part of single chip circuit respectively with circuit for controlling motor.
Described power supply circuits module comprises power supply circuit, voltage and current detection circuit, single chip circuit and warning circuit; Described power supply circuit current output terminal is connected with the current input terminal of voltage and current detection circuit and warning circuit respectively, and the current output terminal of described voltage and current detection circuit is connected with the current input terminal of single chip circuit.
Further, described warning circuit comprises audible alarm circuit and liquid crystal display circuit.
Beneficial effect: the present invention, by the connection of testing circuit module and power supply circuits module, has realized fire-proof electricity leakage protector.
(1), in circuit, that voltage and current detection circuit can be realized is under-voltage to three-phase alternating current, the detection of overvoltage, overcurrent and electric leakage;
(2), in circuit, electric-leakage detection circuit can detect the electric current between zero line and ground wire;
(3) button arrange circuit and liquid crystal display circuit can together with overvoltage and the under-voltage value of voltage, overcurrent value and leakage current value are set.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
As 1 one kinds of SCM Based fire-proof electricity leakage protectors of accompanying drawing, it is characterized in that: comprise testing circuit module and power supply circuits module;
Described testing circuit module comprises that voltage and current detection circuit 2, single chip circuit 3, warning circuit 4, electric-leakage detection circuit 5, button arrange circuit 6 and circuit for controlling motor 7.Described voltage and current detection circuit 2 can be divided into voltage detecting circuit and current detection circuit, voltage detecting circuit is comprised of three-phase ac transformer, current rectifying and wave filtering circuit and bleeder circuit, and current detection circuit is comprised of three-phase alternating current instrument transformer, current rectifying and wave filtering circuit and bleeder circuit.The signal output part of described voltage and current detection circuit 2 is connected with the signal input part of single chip circuit 3, voltage and current detection circuit 2 is used for realizing the detection to three-phase alternating current piezoelectric voltage, electric current and electric leakage, to realize the protection to overvoltage, under-voltage, overcurrent and electric leakage; The signal output part of single-chip microcomputer 3 is connected with the signal input of warning circuit 4.Described electric-leakage detection circuit 5, button arranges circuit and is connected with the signal input part of single chip circuit 3 respectively with circuit for controlling motor 7; circuit for controlling motor 7: in protector, control protector with the rotating of alternating current machine and forward the break-make that power supply circuits are realized in corresponding position to.
Described power supply circuits module comprises power supply circuit 1, voltage and current detection circuit 2, single chip circuit 3 and warning circuit 4.Described power supply circuit 1 current output terminal is connected with the current input terminal of warning circuit 4 with voltage and current detection circuit 2 respectively, and described warning circuit 4 comprises audible alarm circuit and liquid crystal display circuit.The current output terminal of described voltage and current detection circuit 2 is connected with the current input terminal of single chip circuit 3.
Earth leakage protective device is when work, and three-phase alternating current inputs to power supply circuit 1, by power supply circuit 1, the high voltage of three-phase electricity is changed into the low voltage voltage of a road 12V and two-way 5V.A power supply circuit 1 wherein road voltage is that 5V output is connected with voltage and current detection circuit 2 and single chip circuit, then is connected with warning circuit 4, forms the circuit of the detection alarm function that possesses earth leakage protective device.The power supply circuit output that wherein another road voltage is 5V is directly connected with single chip circuit 3, as the operating voltage of single chip circuit.Power supply circuit 1 output that wherein a road voltage is 12V is connected with warning circuit 4, as the operating voltage of warning circuit 4.Described electric-leakage detection circuit 5, button arranges circuit and is connected with the signal input part of single chip circuit 3 respectively with circuit for controlling motor 7.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (2)
1. a SCM Based fire-proof electricity leakage protector, is characterized in that: comprise testing circuit module and power supply circuits module;
Voltage and current detection circuit (2): realize the detection to three-phase alternating current piezoelectric voltage, electric current and electric leakage, to realize the protection to overvoltage, under-voltage, overcurrent and electric leakage;
Circuit for controlling motor (7): in protector, control protector with the rotating of alternating current machine and forward the break-make that power supply circuits are realized in corresponding position to;
Described testing circuit module comprises that voltage and current detection circuit (2), single chip circuit (3), warning circuit (4), electric-leakage detection circuit (5), button arrange circuit (6) and circuit for controlling motor (7); The signal output part of described voltage and current detection circuit (2) is connected with the signal input part of single chip circuit (3), and the signal output part of single-chip microcomputer (3) is connected with the signal input of warning circuit (4); Described electric-leakage detection circuit (5), button arrange circuit and are connected with the signal input part of single chip circuit (3) respectively with circuit for controlling motor (7);
Described power supply circuits module comprises power supply circuit (1), voltage and current detection circuit (2), single chip circuit (3) and warning circuit (4); Described power supply circuit (1) current output terminal is connected with the current input terminal of warning circuit (4) with voltage and current detection circuit (2) respectively, and the current output terminal of described voltage and current detection circuit (2) is connected with the current input terminal of single chip circuit (3).
2. a kind of SCM Based fire-proof electricity leakage protector according to claim 1, is characterized in that: described warning circuit (4) comprises audible alarm circuit and liquid crystal display circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310476822.2A CN103532094A (en) | 2013-10-14 | 2013-10-14 | Fireproof electric leakage protector based on single chip microcomputer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310476822.2A CN103532094A (en) | 2013-10-14 | 2013-10-14 | Fireproof electric leakage protector based on single chip microcomputer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103532094A true CN103532094A (en) | 2014-01-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310476822.2A Pending CN103532094A (en) | 2013-10-14 | 2013-10-14 | Fireproof electric leakage protector based on single chip microcomputer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103532094A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104360217A (en) * | 2014-11-19 | 2015-02-18 | 浪潮(北京)电子信息产业有限公司 | Electric leakage detection method and system |
| CN113552406A (en) * | 2021-07-27 | 2021-10-26 | 上海电机学院 | High-precision residual current detection device powered by single power supply |
-
2013
- 2013-10-14 CN CN201310476822.2A patent/CN103532094A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104360217A (en) * | 2014-11-19 | 2015-02-18 | 浪潮(北京)电子信息产业有限公司 | Electric leakage detection method and system |
| CN113552406A (en) * | 2021-07-27 | 2021-10-26 | 上海电机学院 | High-precision residual current detection device powered by single power supply |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140122 |
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| WD01 | Invention patent application deemed withdrawn after publication |