CN204794018U - Microcomputer protection, measurement, and control device - Google Patents
Microcomputer protection, measurement, and control device Download PDFInfo
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- CN204794018U CN204794018U CN201520526612.4U CN201520526612U CN204794018U CN 204794018 U CN204794018 U CN 204794018U CN 201520526612 U CN201520526612 U CN 201520526612U CN 204794018 U CN204794018 U CN 204794018U
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- triode
- ground wire
- control device
- electromagnetic relay
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Abstract
The utility model discloses a microcomputer protection, measurement, and control device, including the casing circuit module interior with locating the casing, be equipped with live wire wiring end, zero line wiring end and ground wire wiring end on the casing, still be equipped with control circuit in the casing, control circuit includes, detecting element first detection mouth and second detect the mouth, first detection mouth is coupled in live wire wiring end, the second detects the mouth and is coupled in ground wire wiring end, works as during the last electricity of microcomputer protection, measurement, and control device, detecting element is in first detection mouthful with output detection signal when second detection mouth does not form the electric current, the control unit shines with the control pilot lamp in response to this detected signal, the control unit still delays behind the electricity on microcomputer protection, measurement, and control device and cuts off the connection route that the live wire wiring was held and the ground wire wiring is held. The utility model discloses a microcomputer protection, measurement, and control device the ground wire not in contact with the time pilot lamp bright, control personnel's suggestion.
Description
Technical field
The utility model relates to a kind of Microcomputer Protection and measure and control device.
Background technology
Microcomputer protecting controller does not go out chip single-chip microcomputer by high integration, bus, high-precision current voltage transformer, high insulation resistance export the parts such as auxiliary relay, high-reliability switch power module and form; possess incoming relay-protection, outlet protection, the defencive functions such as sectionalised protection, distribution transforming protection, motor protection, capacitor protection, main transformer backup protection, generator backup protection, PT monitoring and protection.
Microcomputer protecting controller needs artificial manipulation in practice, but, when installing microcomputer protecting controller, easily do not connect the ground wire of microcomputer protecting controller because of carelessness.Ground wire is used to wire electric current being introduced the earth; When electric equipment electric leakage or overtension, electric current enters the earth by ground wire.If do not connect ground wire, can cause the body leakage of microcomputer protecting controller, to manipulation, personnel bring injury.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of Microcomputer Protection and measure and control device, and when ground wire does not connect, indicator light is bright, gives manipulation personnel prompting.
For achieving the above object; the invention provides following technical scheme: a kind of Microcomputer Protection and measure and control device; comprise housing and be located at the circuit module in housing; described housing is provided with hot terminal, zero line terminals and ground wire terminals; also control circuit is provided with in described housing; described control circuit comprises
Detecting unit, comprise the first detection mouth and second and detect mouth, described first detects mouth is coupled to hot terminal, described second detects mouth is coupled to ground wire terminals, when described Microcomputer Protection and measure and control device power on, described detecting unit is output detection signal when described first detection mouth and described second detection mouth do not form electric current;
Control unit, shinny to control indicator light in response to this detection signal;
Described control unit is the connecting path of delay cutoff hot terminal and ground wire terminals after Microcomputer Protection and measure and control device power on also.
The utility model is set to further: described detecting unit comprises electromagnetic relay and flow restricter, the two ends of described electromagnetic relay coil are respectively described first and detect mouth and described second detection mouth, and the coil of described flow restricter and electromagnetic relay is series between hot terminal and ground wire terminals successively.
The utility model is set to further: described control unit comprises,
DC power supply;
First triode, its base stage is coupled to the positive pole of described DC power supply by electromagnetic relay normal open switch, and its emitter is coupled to the negative pole of described DC power supply;
The time relay, one end of its coil is coupled to the collector electrode of described first triode, and its normal open switch is in parallel with described electromagnetic relay normal open switch, and its normally closed switch is series at the coil of electromagnetic relay and hot terminal or ground wire terminals;
Second triode, its base stage is coupled to the collector electrode of described first triode, and its emitter is coupled to the negative pole of described DC power supply, and its collector electrode is coupled to described indicator light.
The utility model is set to further: described control unit comprises,
DC power supply;
First triode, its base stage is coupled to the positive pole of described DC power supply by electromagnetic relay normally closed switch, and its emitter is coupled to the negative pole of described DC power supply;
The time relay, one end of its coil is coupled to the collector electrode of described first triode, and its normal open switch is in parallel with described electromagnetic relay normally closed switch, and its normally closed switch is series at the coil of electromagnetic relay and hot terminal or ground wire terminals;
Second triode, its base stage is coupled to the collector electrode of described first triode, and its emitter is coupled to the positive pole of described DC power supply, and its collector electrode is coupled to described indicator light.
By adopting technique scheme, when ground wire connects, between live wire and bottom line, there is certain voltage, making electromagnetic relay adhesive, by control unit, indicator light being gone out; When ground wire does not connect, between live wire and bottom line, there is not certain voltage, electromagnetic relay is disconnected, make indicator light bright by control unit.
Compared to prior art, Microcomputer Protection of the present utility model and the measure and control device indicator light when ground wire does not connect is bright, gives manipulation personnel prompting.
Accompanying drawing explanation
Fig. 1 is the first view of the utility model Microcomputer Protection and measure and control device;
Fig. 2 is the second view of the utility model Microcomputer Protection and measure and control device;
Fig. 3 is electromagnetic relay coil and winding diagram that is fiery, zero line terminals;
Fig. 4 is the circuit theory diagrams of control unit in the first embodiment;
Fig. 5 is the circuit theory diagrams of control unit in the second embodiment.
Reference numeral: 1, housing; LED1, indicator light; L, hot terminal; E, ground wire terminals; K, relay; 100, control unit.
Embodiment
Referring to figs. 1 through Fig. 5, the embodiment of the utility model Microcomputer Protection and measure and control device is described further.
With reference to Fig. 1, Fig. 2 and Fig. 3; in the utility model, Microcomputer Protection and measure and control device comprise housing 1; this housing 1 is provided with indicator light, DC power supply (not shown), hot terminal L, ground wire terminals E and other terminals; electromagnetic relay K and control unit 100 is also provided with in this housing 1; wherein; the structure of electromagnetic relay K with reference to Fig. 2, can not run business into particular one herein and states.
The two ends of this electromagnetic relay K coil are respectively coupled to hot terminal L and ground wire terminals E, two inputs of this control unit 100 and DC power supply couple, the output of this control unit 100 is coupled to described indicator light, in addition, hot terminal L is connected by flow restricter R with electromagnetic relay K coil, and ground wire terminals E is connected by normally closed switch KT with electromagnetic relay K coil.
By above-mentioned setting, can be implemented in ground wire when not connecting, make control unit 100 conducting indicator light, for realizing this object, the utility model provides following two kinds of execution modes:
Embodiment one:
Switch with reference to Fig. 4, this electromagnetic relay K is normally closed switch, and this control unit 100 comprises resistance R1 ~ R2, triode T1 ~ T2, indicator light LED1 and time relay KT.The positive source of DC power supply E1 is coupled to positive source, one end of K switch (normal open switch of relay K) is coupled to positive source, the other end of K switch is coupled to one end of resistance R1, the other end of resistance R1 is coupled to the base stage of triode T1, the emitter of triode T1 is coupled to power cathode, the collector electrode of triode T1 is coupled to one end of resistance R2, the other end of resistance R2 is coupled to positive source by time relay KT line segment, the base stage of triode T2 is coupled to the common junction of the collector electrode of resistance R2 and triode T1, the emitter of triode T2 is coupled to power cathode, the collector electrode of triode T2 is coupled to the negative electrode of indicator light LED1, the anode of indicator light LED2 is coupled to positive source, in addition normal open switch KT is in parallel with K switch, normally closed switch KT is gate-controlled switch.
Wherein, this positive source and this power cathode are respectively an input of the control unit 100 in claims and another input of control unit 100, and the current collection of triode T2 is the output of control unit 100 in claims very.
Microcomputer Protection in the present embodiment and measure and control device work as follows, when ground wire connects, relay K adhesive, K switch closes, now triode T1 conducting, the current potential of the collector electrode of triode T1 and the common junction of resistance R2 is dragged down, and therefore triode T2 ends, and indicator light LED1 goes out, simultaneously, time relay time delay makes hot terminal L and ground wire terminals E power-off, to ensure life safety, and keeps the conducting state of triode T1; On the contrary, when ground wire does not connect, relay K disconnects, K switch disconnects, and now triode T1 ends, and the current potential of the collector electrode of triode T1 and the common junction of resistance R2 is elevated, therefore triode T2 conducting, indicator light LED1 is bright, and meanwhile, time relay time delay makes hot terminal L and ground wire terminals E power-off.
Embodiment two:
Switch with reference to Fig. 5, this electromagnetic relay K is normal open switch.This is stated control unit 100 and comprises resistance R1 ~ R2, triode T1 ~ T2, indicator light LED1 and time relay KT.The positive source of DC power supply E1 is coupled to positive source, one end of K switch (normal open switch of relay K) is coupled to positive source, the other end of K switch is coupled to one end of resistance R1, the other end of resistance R1 is coupled to the base stage of triode T1, the emitter of triode T1 is coupled to power cathode, the collector electrode of triode T1 is coupled to one end of resistance R2, the other end of resistance R2 is coupled to positive source by time relay KT line segment, the emitter of triode T1 is coupled to power cathode, the base stage of triode T2 is coupled to the common junction of the collector electrode of resistance R2 and triode T1, the emitter of triode T2 is coupled to power cathode, the collector electrode of triode T2 is coupled to the negative electrode of indicator light LED1, the anode of indicator light LED2 is coupled to positive source, in addition normal open switch KT is in parallel with K switch, normally closed switch KT is gate-controlled switch.
Wherein, this positive source and this power cathode are respectively an input of the control unit 100 in claims and another input of control unit 100, and the current collection of triode T2 is the output of control unit 100 in claims very.
Microcomputer Protection in the present embodiment and measure and control device work as follows, when ground wire connects, relay K adhesive, K switch disconnects, and now triode T1 ends, the current potential of the collector electrode of triode T1 and the common junction of resistance R2 is elevated, therefore triode T2 ends, and indicator light LED1 goes out, simultaneously, time relay time delay makes hot terminal L and ground wire terminals E power-off, to ensure life safety; On the contrary, when ground wire does not connect, relay K disconnects, and K switch closes, now triode T1 conducting, the current potential of the collector electrode of triode T1 and the common junction of resistance R2 is dragged down, therefore triode T2 conducting, indicator light LED1 is bright, simultaneously, time relay KT makes hot terminal L and ground wire terminals E power-off, and keeps the conducting state of triode T1.
In sum, the indicator light LED1 when ground wire does not connect is bright for Microcomputer Protection of the present utility model and measure and control device, gives manipulation personnel prompting.
The above is only preferred implementation of the present utility model, protection range of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (4)
1. Microcomputer Protection and a measure and control device, comprise housing and be located at the circuit module in housing, described housing is provided with hot terminal, zero line terminals and ground wire terminals, it is characterized in that: be also provided with control circuit in described housing, and described control circuit comprises,
Detecting unit, comprise the first detection mouth and second and detect mouth, described first detects mouth is coupled to hot terminal, described second detects mouth is coupled to ground wire terminals, when described Microcomputer Protection and measure and control device power on, described detecting unit is output detection signal when described first detection mouth and described second detection mouth do not form electric current;
Control unit, shinny to control indicator light in response to this detection signal;
Described control unit is the connecting path of delay cutoff hot terminal and ground wire terminals after Microcomputer Protection and measure and control device power on also.
2. Microcomputer Protection according to claim 1 and measure and control device; it is characterized in that: described detecting unit comprises electromagnetic relay and flow restricter; the two ends of described electromagnetic relay coil are respectively described first and detect mouth and described second detection mouth, and the coil of described flow restricter and electromagnetic relay is series between hot terminal and ground wire terminals successively.
3. Microcomputer Protection according to claim 2 and measure and control device, is characterized in that: described control unit comprises,
DC power supply;
First triode, its base stage is coupled to the positive pole of described DC power supply by electromagnetic relay normal open switch, and its emitter is coupled to the negative pole of described DC power supply;
The time relay, one end of its coil is coupled to the collector electrode of described first triode, and its normal open switch is in parallel with described electromagnetic relay normal open switch, and its normally closed switch is series at the coil of electromagnetic relay and hot terminal or ground wire terminals;
Second triode, its base stage is coupled to the collector electrode of described first triode, and its emitter is coupled to the negative pole of described DC power supply, and its collector electrode is coupled to described indicator light.
4. Microcomputer Protection according to claim 2 and measure and control device, is characterized in that: described control unit comprises,
DC power supply;
First triode, its base stage is coupled to the positive pole of described DC power supply by electromagnetic relay normally closed switch, and its emitter is coupled to the negative pole of described DC power supply;
The time relay, one end of its coil is coupled to the collector electrode of described first triode, and its normal open switch is in parallel with described electromagnetic relay normally closed switch, and its normally closed switch is series at the coil of electromagnetic relay and hot terminal or ground wire terminals;
Second triode, its base stage is coupled to the collector electrode of described first triode, and its emitter is coupled to the positive pole of described DC power supply, and its collector electrode is coupled to described indicator light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520526612.4U CN204794018U (en) | 2015-07-18 | 2015-07-18 | Microcomputer protection, measurement, and control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520526612.4U CN204794018U (en) | 2015-07-18 | 2015-07-18 | Microcomputer protection, measurement, and control device |
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| Publication Number | Publication Date |
|---|---|
| CN204794018U true CN204794018U (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520526612.4U Expired - Fee Related CN204794018U (en) | 2015-07-18 | 2015-07-18 | Microcomputer protection, measurement, and control device |
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| Country | Link |
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| CN (1) | CN204794018U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451389A (en) * | 2016-11-14 | 2017-02-22 | 成都九五测控科技有限公司 | Microcomputer comprehensive measuring and control protection device |
| CN106451387A (en) * | 2016-11-14 | 2017-02-22 | 成都九五测控科技有限公司 | Microcomputer protection, measurement and control device |
| CN106451388A (en) * | 2016-11-14 | 2017-02-22 | 成都九五测控科技有限公司 | Comprehensive type microcomputer protection measurement and control device |
-
2015
- 2015-07-18 CN CN201520526612.4U patent/CN204794018U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451389A (en) * | 2016-11-14 | 2017-02-22 | 成都九五测控科技有限公司 | Microcomputer comprehensive measuring and control protection device |
| CN106451387A (en) * | 2016-11-14 | 2017-02-22 | 成都九五测控科技有限公司 | Microcomputer protection, measurement and control device |
| CN106451388A (en) * | 2016-11-14 | 2017-02-22 | 成都九五测控科技有限公司 | Comprehensive type microcomputer protection measurement and control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20190718 |
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| CF01 | Termination of patent right due to non-payment of annual fee |