CN204597453U - Electric prospection switch - Google Patents
Electric prospection switch Download PDFInfo
- Publication number
- CN204597453U CN204597453U CN201520140952.3U CN201520140952U CN204597453U CN 204597453 U CN204597453 U CN 204597453U CN 201520140952 U CN201520140952 U CN 201520140952U CN 204597453 U CN204597453 U CN 204597453U
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- protective device
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Abstract
The utility model provides a kind of electric prospection switch, and it comprises housing and is fixed on air switch, earth leakage protective device, relay and the over-and under-voltage protective device in described housing; The signals collecting end of described earth leakage protective device connects the output of described air switch, and the armature of described relay connects the release of described air conservation switch; Described over-and under-voltage protective device comprises processor and over-and under-voltage Acquisition Circuit, and the collection terminal of described over-and under-voltage Acquisition Circuit connects the output of described air switch, and described processor is by the wire loop of relay described in drive circuit break-make.Cut off the electricity supply in time during the situations such as this electric prospection switch can be short-circuited at power delivery circuit, leak electricity, under-voltage, overvoltage, its have design science, rational in infrastructure, detect accurately, advantage that power-off is timely and safe and reliable.
Description
Technical field
The utility model relates to a kind of switch, specifically, relate to a kind of electric prospection switch that can realize the protections such as short circuit, electric leakage, under-voltage, overvoltage.
Background technology
Current low-voltage electrical apparatus safety protection switch; common are air switch and earth leakage circuit-breaker; air switch can be cut off the electricity supply when circuit or electrical short-circuit, and earth leakage circuit-breaker can be cut off the electricity supply when circuit or electrical leakage, plays the problem of protective device or circuit.But also there is certain defect in transmission line in day-to-day operation, cause spread of voltage, such as transmitting transformer asterism blow or loose contact time, when electrical network 3 subharmonic is too high, the too high or too low phenomenon of certain phase voltage is caused in capital, and then causes potential safety hazard to electrical equipment or circuit.
In order to solve above Problems existing, people are seeking a kind of desirable technical solution always.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, thus provide a kind of design science, rational in infrastructure, detect accurately, electric prospection switch that power-off is timely and safe and reliable.
To achieve these goals, the technical scheme that the utility model adopts is: a kind of electric prospection switch, and it comprises housing and is fixed on air switch, earth leakage protective device, relay and the over-and under-voltage protective device in described housing; The signals collecting end of described earth leakage protective device connects the output of described air switch, the armature of described relay connects the release of described air conservation switch, and the signal output part of described earth leakage protective device passes through the wire loop of relay described in drive circuit break-make; The over-and under-voltage Acquisition Circuit that described over-and under-voltage protective device comprises processor and is connected with described processor; the collection terminal of described over-and under-voltage Acquisition Circuit connects the output of described air switch, and described processor is by the wire loop of relay described in drive circuit break-make.
Based on above-mentioned, described over-and under-voltage protective device also comprises the keyboard for keying in voltage range and the display for showing real not time circuit information, and described keyboard and described display are arranged on described hull outside and are connected described processor respectively.
Based on above-mentioned; described over-and under-voltage protective device also comprises warning circuit; the signal output part of described processor is connected described warning circuit with the signal output part of described earth leakage protective device respectively by drive circuit, and the power input of described warning circuit connects the input of described air switch.
The utility model hinge structure has substantive distinguishing features and progress, specifically, the utility model comprises air switch, earth leakage protective device, relay and over-and under-voltage protective device, the basis of air switch increases earth leakage protective device, utilize over-and under-voltage protective device to carry out over-and under-voltage detection to circuit simultaneously, and then can transmission line occur short circuit, electric leakage, overvoltage, under-voltage time cut off the electricity supply in time, protective device and transmission line; Increase keyboard and display furtherly, scope setting can be carried out to monitoring voltage, the operation threshold of described over-and under-voltage Acquisition Circuit is set as required, and by display, the magnitude of voltage detected is shown by real-time; Increase warning circuit furtherly, when transmission line is abnormal and alarm; It has design science, rational in infrastructure, detect accurately, advantage that power-off is timely and safe and reliable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural schematic block diagram of described over-and under-voltage protective device.
Embodiment
Below by embodiment, the technical solution of the utility model is described in further detail.
As depicted in figs. 1 and 2, a kind of electric prospection switch, it comprises housing 1 and is fixed on air switch 2, earth leakage protective device 4, relay 3 and the over-and under-voltage protective device 5 in described housing 1.Described air switch 2 can be cut off the electricity supply when transmission line short circuit, described earth leakage protective device 4 can when transmitting electricity electric leakage, pull the release of described air switch to cut off the electricity supply by described relay 3, described over-and under-voltage protective device 5 can be cut off the electricity supply below or above during predetermined threshold value when the voltage of transmission line by Real-Time Monitoring transmission line; The short-circuit protection of transmission line, earth leakage protective, overvoltage protection and under-voltage protection is realized with this.
In the present embodiment, described air switch 2 is fixed in described housing 1, and conveniently wiring, the output of described air switch 2 is connected with input power cord 21, and the output of described air switch 2 is connected with out-put supply line 22.Described relay 3 and described earth leakage protective device 4 are separately fixed in described housing 1, the signals collecting end of described earth leakage protective device 4 connects the out-put supply line 22 of described air switch 2, the electric current in transmission line is gathered with this, the armature of described relay 3 connects the release of described air conservation switch 2, and the signal output part of described earth leakage protective device 4 passes through the wire loop of relay 3 described in drive circuit break-make; When the electric current that earth leakage protective device 4 detects in transmission line is greater than 30mA; the signal output part of described earth leakage protective device 4 sends control signal to described drive circuit; connect the wire loop of described relay 3, now described in relay 3 electromagnetic actuation, armature pulls described release to cut off the electricity supply.The over-and under-voltage Acquisition Circuit that described over-and under-voltage protective device 5 comprises processor and is connected with described processor, the collection terminal of described over-and under-voltage Acquisition Circuit connects the out-put supply line 22 of described air switch 2, and described processor is by the wire loop of relay 3 described in drive circuit break-make; Pre-set detection range, when the magnitude of voltage that described over-and under-voltage Acquisition Circuit collects is below or above detection range magnitude of voltage, described processor sends control information to described drive circuit, the wire loop of logical described relay 3, now described in relay 3 electromagnetic actuation, armature pulls described release to cut off the electricity supply.
This electric prospection switch can when transmission line occurs that short circuit, electric leakage, overvoltage, four kinds of situations such as under-voltage occur, true power consumption equipment of cutting off the electricity supply in time, prevents power consumption equipment from damaging.
For the ease of keying in reference voltage detection; described over-and under-voltage protective device 5 also comprises the keyboard for keying in voltage range and the display for showing real not time circuit information; described keyboard and described display are arranged on outside described housing 1 and are also connected described processor respectively, by display display transmission line real-time voltage.
In order to notify user in time; described over-and under-voltage protective device 5 also comprises warning circuit; the signal output part of described processor is connected described warning circuit with the signal output part of described earth leakage protective device 4 respectively by drive circuit; the power input of described warning circuit connects the input power cord 21 of described air switch 2, obtains uninterrupted power supply with this.
It should be noted that.The air switch with creepage protection function can be selected in other embodiments, short-circuit protection and earth leakage protective are completed by this air switch, sets up over-and under-voltage protective device and under-voltage and overvoltage protection is carried out to transmission line.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the field have been to be understood that: still can modify to embodiment of the present utility model or carry out equivalent replacement to portion of techniques feature; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope of the utility model request protection.
Claims (3)
1. an electric prospection switch, is characterized in that: it comprises housing and is fixed on air switch, earth leakage protective device, relay and the over-and under-voltage protective device in described housing; The signals collecting end of described earth leakage protective device connects the output of described air switch, the armature of described relay connects the release of described air conservation switch, and the signal output part of described earth leakage protective device passes through the wire loop of relay described in drive circuit break-make; The over-and under-voltage Acquisition Circuit that described over-and under-voltage protective device comprises processor and is connected with described processor; the collection terminal of described over-and under-voltage Acquisition Circuit connects the output of described air switch, and described processor is by the wire loop of relay described in drive circuit break-make.
2. electric prospection switch according to claim 1; it is characterized in that: described over-and under-voltage protective device also comprises the keyboard for keying in voltage range and the display for showing real not time circuit information, described keyboard and described display are arranged on described hull outside and are connected described processor respectively.
3. electric prospection switch according to claim 1 and 2; it is characterized in that: described over-and under-voltage protective device also comprises warning circuit; the signal output part of described processor is connected described warning circuit with the signal output part of described earth leakage protective device respectively by drive circuit, and the power input of described warning circuit connects the input of described air switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520140952.3U CN204597453U (en) | 2015-03-13 | 2015-03-13 | Electric prospection switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520140952.3U CN204597453U (en) | 2015-03-13 | 2015-03-13 | Electric prospection switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204597453U true CN204597453U (en) | 2015-08-26 |
Family
ID=53933567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520140952.3U Expired - Fee Related CN204597453U (en) | 2015-03-13 | 2015-03-13 | Electric prospection switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204597453U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105047501A (en) * | 2015-06-16 | 2015-11-11 | 国网安徽省电力公司阜阳供电公司 | Intelligent fuse |
| CN107749610A (en) * | 2017-10-23 | 2018-03-02 | 湖北霞光电力设备有限公司 | A kind of high-low pressure and with the breaker of intelligent alarm |
| CN113315097A (en) * | 2021-04-30 | 2021-08-27 | 江西省全鑫科技有限公司 | Bus overvoltage protection device of magnetic suspension centrifuge and implementation method thereof |
-
2015
- 2015-03-13 CN CN201520140952.3U patent/CN204597453U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105047501A (en) * | 2015-06-16 | 2015-11-11 | 国网安徽省电力公司阜阳供电公司 | Intelligent fuse |
| CN107749610A (en) * | 2017-10-23 | 2018-03-02 | 湖北霞光电力设备有限公司 | A kind of high-low pressure and with the breaker of intelligent alarm |
| CN113315097A (en) * | 2021-04-30 | 2021-08-27 | 江西省全鑫科技有限公司 | Bus overvoltage protection device of magnetic suspension centrifuge and implementation method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20180313 |