CN102522738A - Over-voltage protection single-phase electric leakage switch - Google Patents
Over-voltage protection single-phase electric leakage switch Download PDFInfo
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- CN102522738A CN102522738A CN2011104236946A CN201110423694A CN102522738A CN 102522738 A CN102522738 A CN 102522738A CN 2011104236946 A CN2011104236946 A CN 2011104236946A CN 201110423694 A CN201110423694 A CN 201110423694A CN 102522738 A CN102522738 A CN 102522738A
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Abstract
The invention discloses an over-voltage protection single-phase electric leakage switch, wherein a circuit board is arranged inside a box body to form a switch; the circuit board is formed on a printed circuit board by printing via an electronic component; an electric loop comprises a short-circuit protection circuit (1), an overload protection circuit (2) and an electric leakage protection circuit (3), and is characterized in that a transient voltage suppression circuit (4) and an overvoltage detection circuit (5) are connected on the electric loop to form the overvoltage protection switch integrally. The over-voltage protection single-phase electric leakage switch is integrated with lightening protection, overvoltage protection, short-circuit protection, overload protection and electric leakage protection, and is designed for solving the problem that household appliances are burnt by boosted voltage.
Description
Technical field
The present invention relates to earth leakage circuit-breaker, be specifically related to the single-phase leakage switch of a kind of overvoltage protection.
Background technology
As everyone knows, traditional single-phase earth leakage circuit-breaker has short-circuit protection, overload protection and earth leakage protective, is not enough in practical application but these protections are only arranged.
Summary of the invention
The objective of the invention is to: provide a kind of overvoltage protection single-phase leakage switch, this switch integrates lightning protection, overvoltage protection, short-circuit protection, overload protection, earth leakage protective, is primarily aimed at voltage and raises and to burn household electrical appliance and design.
Technical solution of the present invention is: mounting circuit boards constitutes switch in box body; Circuit board is formed by the electronic devices and components printing in the circuit board; The electricity loop comprises short-circuit protection circuit, overload protecting circuit and leakage protection circuit; It is characterized in that: on electric loop, connect Transient voltage protection circuit and overvoltage detection circuit, the whole over-voltage protection switch of forming.
The present invention has the following advantages; 1, increased Transient voltage protection circuit, when lightning surge intrusion takes place, can the energy of lightning wave have been discharged in rapid bypass, within safe range, the insulation of protection electrical equipment is not by over-voltage breakdown with voltage clamp; 2, when circuit generation wiring error; Like mistake the 380V power supply is inserted the 220V circuit, or in the three-phase and four-line power supply road because of zero line open circuit, zero line loose contact, neutral point drift that reason causes such as zero line is long and threephase load is not steady, when forming high voltage and surpassing electrical equipment permission operating voltage; Overvoltage detection circuit will send signal; Promote tripping mechanism and make switch trip, cut off the electricity supply, prevent that electrical equipment from because of the overvoltage operation overheated burning or the initiation fire accident being taken place.
Description of drawings
Fig. 1 is circuit theory diagrams of the present invention.
Among the figure: 1 short-circuit protection circuit, 2 overload protecting circuits, 3 leakage protection circuits, 4 Transient voltage protection circuits, 5 overvoltage detection circuits.
Embodiment
As shown in Figure 1; Mounting circuit boards constitutes switch in box body; Circuit board is formed by the electronic devices and components printing in the circuit board; The electricity loop comprises short-circuit protection circuit 1, overload protecting circuit 2 and leakage protection circuit 3, it is characterized in that: on electric loop, connect Transient voltage protection circuit 4 and overvoltage detection circuit 5, the whole over-voltage protection switch of forming.
Claims (1)
1. the single-phase leakage switch of overvoltage protection; Mounting circuit boards constitutes switch in box body; Circuit board is formed by the electronic devices and components printing in the circuit board; The electricity loop comprises short-circuit protection circuit (1), overload protecting circuit (2) and leakage protection circuit (3), it is characterized in that: on electric loop, connect Transient voltage protection circuit (4) and overvoltage detection circuit (5), the whole over-voltage protection switch of forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104236946A CN102522738A (en) | 2011-12-17 | 2011-12-17 | Over-voltage protection single-phase electric leakage switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104236946A CN102522738A (en) | 2011-12-17 | 2011-12-17 | Over-voltage protection single-phase electric leakage switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102522738A true CN102522738A (en) | 2012-06-27 |
Family
ID=46293562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104236946A Pending CN102522738A (en) | 2011-12-17 | 2011-12-17 | Over-voltage protection single-phase electric leakage switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102522738A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098526A (en) * | 2015-08-07 | 2015-11-25 | 徐业友 | Integrated function module group based on wiring board and wiring board |
-
2011
- 2011-12-17 CN CN2011104236946A patent/CN102522738A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098526A (en) * | 2015-08-07 | 2015-11-25 | 徐业友 | Integrated function module group based on wiring board and wiring board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120627 |