CN204012645U - Domestic overvoltage protection switch - Google Patents
Domestic overvoltage protection switch Download PDFInfo
- Publication number
- CN204012645U CN204012645U CN201420345165.8U CN201420345165U CN204012645U CN 204012645 U CN204012645 U CN 204012645U CN 201420345165 U CN201420345165 U CN 201420345165U CN 204012645 U CN204012645 U CN 204012645U
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- CN
- China
- Prior art keywords
- resistance
- thyristor
- ground wire
- live wire
- piezo
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- Expired - Fee Related
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- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model provides Domestic overvoltage protection switch, it comprises power supply input wires terminal, power supply output wiring terminal and ground wire and live wire, between described live wire and described ground wire, be connected in series piezo-resistance and divider resistance, on live wire and ground wire, be equipped with the dynamic/static contact of automatic switch, the tripping coil that between live wire and ground wire, also serial connection opens and closes for controlling dynamic/static contact, diode and thyristor, tripping coil one end connects the anodic bonding of live wire and the other end and diode, the negative electrode of diode and the anodic bonding of thyristor, the negative electrode of thyristor is connected with ground wire, the gate pole of thyristor is connected with the common port of piezo-resistance and divider resistance.The utility model Domestic overvoltage protection switch; in the time there is abnormal overvoltage; the resistance of piezo-resistance reduces and by current distributing; trigger the gate pole of thyristor simultaneously; by thyristor conducting; in tripping coil, have electric current to flow through, the electromagnetic force of generation is separated dynamic/static contact, thereby prevents that overvoltage from causing damage to household electrical appliance.
Description
Technical field
The utility model relates to circuit protection field, specifically, has related to a kind of Domestic overvoltage protection switch.
Background technology
Use in electric line in low pressure, tend to produce abnormal overvoltage, as harmonic wave overvoltage of the breaking-closing operating overvoltage of the start and stop overvoltage of inductive load, transformer and transformer etc., particularly the neutral line of transformer disconnects the abnormal overvoltage producing, be the line voltage that the household electrical appliance of 220V phase voltage bear 380V by making rated operational voltage, this situation, easily causes and causes domestic electric appliances to burn.How to prevent the harm that this abnormal overvoltage causes, become the problem that people are worth thinking.
In order to solve the problem of above existence, people are seeking a kind of desirable technical solution always.
Utility model content
The purpose of this utility model is for the deficiencies in the prior art, thereby a kind of Domestic overvoltage protection switch is provided.
To achieve these goals, the technical scheme that the utility model adopts is: Domestic overvoltage protection switch, it comprises power supply input wires terminal, power supply output wiring terminal and connect ground wire and the live wire of described power supply input wires terminal and described power supply output wiring terminal, between described live wire and described ground wire, be connected in series piezo-resistance and divider resistance, on described live wire and described ground wire, be equipped with the dynamic/static contact of automatic switch, the tripping coil that between described live wire and described ground wire, also serial connection opens and closes for controlling described dynamic/static contact, diode and thyristor, described tripping coil one end connects the anodic bonding of described live wire and the other end and described diode, the negative electrode of described diode and the anodic bonding of described thyristor, the negative electrode of described thyristor is connected with described ground wire, the gate pole of described thyristor is connected with the common port of described piezo-resistance and described divider resistance.
Based on above-mentioned, described automatic switch is the single-phase automatic dropout switch of NM1-100H/3310 63-100A type.
Based on above-mentioned, the resistance of described divider resistance is 1-1.2k Ω, and described piezo-resistance is the piezo-resistance of 270V/10KA specification.
Based on above-mentioned, described tripping coil is made up of copper enamelled wire coiling 200-250 circle on coil rack.
The relative prior art of the utility model has substantive distinguishing features and progress; specifically; Domestic overvoltage protection switch; in the time there is abnormal overvoltage, the resistance of piezo-resistance reduces and by current distributing, triggers the gate pole of thyristor simultaneously; by thyristor conducting; in tripping coil, have electric current to flow through, the electromagnetic force of generation is separated dynamic/static contact, thereby prevents that overvoltage from causing damage to household electrical appliance.
Brief description of the drawings
Fig. 1 is the circuit diagram of Domestic overvoltage protection switch in the utility model embodiment.
Embodiment
Below by embodiment, the technical solution of the utility model is described in further detail.
As shown in Figure 1; Domestic overvoltage protection switch; it comprises power supply input wires terminal 101, power supply output wiring terminal 108 and connects ground wire and the live wire of described power supply input wires terminal 101 and described power supply output wiring terminal 108; between described live wire and described ground wire, be connected in series piezo-resistance 103 and divider resistance 102; on described live wire and described ground wire, be equipped with the dynamic/static contact 107 of automatic switch, this automatic switch is the single-phase automatic dropout switch of NM1-100H/3310 63-100A type.Between described live wire and described ground wire, also serial connection is used for controlling the tripping coil 106 that described dynamic/static contact 107 opens and closes, diode V1 and thyristor V2, described tripping coil 106 one end connect the anodic bonding of described live wire and the other end and described diode V1, the anodic bonding of the negative electrode of described diode V1 and described thyristor V2, the negative electrode of described thyristor V2 is connected with described ground wire, the gate pole of described thyristor V2 is connected with the common port of described piezo-resistance 103 and described divider resistance 102, tripping coil is made up of copper enamelled wire coiling 200-250 circle on coil rack, for operating value is set in to 230-250V, the resistance of divider resistance is 1-1.2k Ω, piezo-resistance is the piezo-resistance of 270V/10KA specification.
Domestic overvoltage protection switch in the present embodiment; in the time there is abnormal overvoltage; the resistance of piezo-resistance reduces and by current distributing; trigger the gate pole of thyristor simultaneously; by thyristor conducting; in tripping coil, have electric current to flow through, the electromagnetic force of generation is separated dynamic/static contact, thereby prevents that overvoltage from causing damage to household electrical appliance.
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 the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the field are to be understood that: still can modify or part technical characterictic is equal to replacement embodiment of the present utility model; 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 (4)
1. Domestic overvoltage protection switch, it is characterized in that: it comprises power supply input wires terminal, power supply output wiring terminal and connect ground wire and the live wire of described power supply input wires terminal and described power supply output wiring terminal, between described live wire and described ground wire, be connected in series piezo-resistance and divider resistance, on described live wire and described ground wire, be equipped with the dynamic/static contact of automatic switch, the tripping coil that between described live wire and described ground wire, also serial connection opens and closes for controlling described dynamic/static contact, diode and thyristor, described tripping coil one end connects the anodic bonding of described live wire and the other end and described diode, the negative electrode of described diode and the anodic bonding of described thyristor, the negative electrode of described thyristor is connected with described ground wire, the gate pole of described thyristor is connected with the common port of described piezo-resistance and described divider resistance.
2. Domestic overvoltage protection switch according to claim 1, is characterized in that: described automatic switch is the single-phase automatic dropout switch of NM1-100H/3310 63-100A type.
3. Domestic overvoltage protection switch according to claim 2, is characterized in that: the resistance of described divider resistance is 1-1.2k Ω, and described piezo-resistance is the piezo-resistance of 270V/10KA specification.
4. Domestic overvoltage protection switch according to claim 3, is characterized in that: described tripping coil is made up of copper enamelled wire coiling 200-250 circle on coil rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420345165.8U CN204012645U (en) | 2014-06-26 | 2014-06-26 | Domestic overvoltage protection switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420345165.8U CN204012645U (en) | 2014-06-26 | 2014-06-26 | Domestic overvoltage protection switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204012645U true CN204012645U (en) | 2014-12-10 |
Family
ID=52052588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420345165.8U Expired - Fee Related CN204012645U (en) | 2014-06-26 | 2014-06-26 | Domestic overvoltage protection switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204012645U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104065031A (en) * | 2014-06-26 | 2014-09-24 | 河南开启电力实业有限公司 | Household overvoltage protection switch |
| CN105162083A (en) * | 2015-08-31 | 2015-12-16 | 国家电网公司 | Overvoltage protector |
-
2014
- 2014-06-26 CN CN201420345165.8U patent/CN204012645U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104065031A (en) * | 2014-06-26 | 2014-09-24 | 河南开启电力实业有限公司 | Household overvoltage protection switch |
| CN105162083A (en) * | 2015-08-31 | 2015-12-16 | 国家电网公司 | Overvoltage protector |
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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: 20141210 Termination date: 20160626 |