CN204441634U - There is the leakage protecting plug of the abnormal deixis of current supply circuit - Google Patents
There is the leakage protecting plug of the abnormal deixis of current supply circuit Download PDFInfo
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- CN204441634U CN204441634U CN201520063672.7U CN201520063672U CN204441634U CN 204441634 U CN204441634 U CN 204441634U CN 201520063672 U CN201520063672 U CN 201520063672U CN 204441634 U CN204441634 U CN 204441634U
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- supply circuit
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Abstract
The utility model discloses a kind of leakage protecting plug with the abnormal deixis of current supply circuit; the abnormal indicating circuit of current supply circuit is provided with between zero line and ground wire; the abnormal indicating circuit of described current supply circuit comprises the first electric capacity, insurance resistance LED and protection diode; described first electric capacity one end connects zero line; the other end connects one end of protective resistance; the positive pole of the other end connecting luminous diode of described protective resistance and the negative pole of protection diode, the minus earth line of described light-emitting diode and the positive pole of protection diode.In this circuit, the first electric capacity does capacitive reactance step-down and powers to light-emitting diode, and the feature of the first electric capacity is the insulation resistance that improve between N-E; Protective resistance is used for playing safety effect, and when the abnormal short circuit of the first electric capacity, insurance resistance will fuse, and after fusing, circuit is equivalent to open circuit; Protection diode is not punctured by direction for the protection of light-emitting diode, plays the effect of protection light-emitting diode.
Description
Technical field
The utility model relates to electric heater electric security protector device field, particularly a kind of leakage protecting plug with the abnormal deixis of current supply circuit.
Background technology
The leakage protecting plug of prior art arranges resistance and the neon lamp of series connection between ground wire and zero line; object is when ground wire abnormal belt electricity; neon lamp lights; to show that current supply circuit is abnormal; but the problem that this structure is brought is that the resistance between zero line and ground wire is not high enough, does not reach the requirement of insulating between circuit.
Utility model content
(1) technical problem that will solve
The purpose of this utility model will overcome above-mentioned shortcoming exactly, aims to provide a kind of leakage protecting plug with the abnormal deixis of current supply circuit.
(2) technical scheme
For solving the problem, the utility model proposes a kind of leakage protecting plug with the abnormal deixis of current supply circuit, comprise release, rectification circuit, indicator light circuit, reduction voltage circuit, IC amplifying circuit, zero line electric-leakage detection circuit, ground wire electric-leakage detection circuit, superpressure testing circuit, overtemperature testing circuit and open-phase protection circuit, the abnormal indicating circuit of current supply circuit is provided with between zero line and ground wire, the abnormal indicating circuit of described current supply circuit comprises the first electric capacity, insurance resistance LED and protection diode, described first electric capacity one end connects zero line, the other end connects one end of protective resistance, the positive pole of the other end connecting luminous diode of described protective resistance and the negative pole of protection diode, the minus earth line of described light-emitting diode and the positive pole of protection diode.
Further, described protective resistance is fusible resistance.
Further, the second electric capacity is also provided with between described zero line and ground wire.
(3) beneficial effect
Compared with prior art, the utility model has the following advantages: in this circuit, the first electric capacity does capacitive reactance step-down and powers to light-emitting diode, and the feature of the first electric capacity is the insulation resistance that improve between N-E; Protective resistance is used for playing safety effect, and when the abnormal short circuit of the first electric capacity, insurance resistance will fuse, and after fusing, circuit is equivalent to open circuit; Protection diode is not punctured by direction for the protection of light-emitting diode, plays the effect of protection light-emitting diode.
Accompanying drawing explanation
Fig. 1 is the circuit theory module map with the leakage protecting plug of the abnormal deixis of current supply circuit of the present utility model;
Fig. 2 is the circuit theory diagrams that the leakage protecting plug with the abnormal deixis of current supply circuit of the present utility model is applied in this area.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples for illustration of the utility model, but are not used for limiting scope of the present utility model.
Circuit theory module map as shown in Figure 1, the leakage protecting plug with the abnormal deixis of current supply circuit of the present utility model, comprise release, rectification circuit, indicator light circuit, reduction voltage circuit, IC amplifying circuit, zero line electric-leakage detection circuit, ground wire electric-leakage detection circuit, superpressure testing circuit, overtemperature testing circuit and open-phase protection circuit, the abnormal indicating circuit of current supply circuit is provided with between zero line and ground wire, the abnormal indicating circuit of described current supply circuit comprises the first electric capacity C1, insurance resistance LED LED1 and protection diode D1, described first electric capacity C1 one end connects zero line, the other end connects one end of protective resistance R1, the positive pole of the other end connecting luminous diode LED1 of described protective resistance R1 and the negative pole of protection diode D1, the minus earth line of described LED 1 and the positive pole of protection diode D1.Wherein rectification circuit connects release; indicator light circuit connects rectification circuit; reduction voltage circuit one end connects rectification circuit; the other end connects IC amplifying circuit; superpressure testing circuit connects IC amplifying circuit and release; defect protective circuit connects rectification circuit and release; overtemperature testing circuit connects IC amplifying circuit and release; zero live wire electric-leakage detection circuit connects IC amplifying circuit; and for responding to the drain conditions of zero live wire; ground wire electric-leakage detection circuit connects IC amplifying circuit, and for responding to ground wire drain conditions.
Described protective resistance R1 is fusible resistance.Circuit breaker after fusing, protects LED 1.
Also be provided with the second electric capacity C2 between described zero line and ground wire, utilize the feature of the logical interchange stopping direct current of electric capacity, ground wire induced electricity is eliminated.
In this circuit, the first electric capacity does capacitive reactance step-down and powers to light-emitting diode, and the feature of the first electric capacity is the insulation resistance that improve between N-E; Protective resistance is used for playing safety effect, and when the abnormal short circuit of the first electric capacity, insurance resistance will fuse, and after fusing, circuit is equivalent to open circuit; Protection diode is not punctured by direction for the protection of light-emitting diode, plays the effect of protection light-emitting diode.
Fig. 2 is the embody rule of leakage protecting plug in earth leakage protective device field with the abnormal deixis of current supply circuit of the present utility model, and physical circuit participates in Fig. 2.
Below be only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (3)
1. one kind has the leakage protecting plug of the abnormal deixis of current supply circuit, comprise release, rectification circuit, indicator light circuit, reduction voltage circuit, IC amplifying circuit, zero line electric-leakage detection circuit, ground wire electric-leakage detection circuit, superpressure testing circuit, overtemperature testing circuit and open-phase protection circuit, it is characterized in that: between zero line and ground wire, be provided with the abnormal indicating circuit of current supply circuit, the abnormal indicating circuit of described current supply circuit comprises the first electric capacity, insurance resistance LED and protection diode, described first electric capacity one end connects zero line, the other end connects one end of protective resistance, the positive pole of the other end connecting luminous diode of described protective resistance and the negative pole of protection diode, the minus earth line of described light-emitting diode and the positive pole of protection diode.
2. the leakage protecting plug with the abnormal deixis of current supply circuit according to claim 1, is characterized in that: described protective resistance is fusible resistance.
3. the leakage protecting plug with the abnormal deixis of current supply circuit according to claim 2, is characterized in that: be also provided with the second electric capacity between described zero line and ground wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520063672.7U CN204441634U (en) | 2015-01-29 | 2015-01-29 | There is the leakage protecting plug of the abnormal deixis of current supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520063672.7U CN204441634U (en) | 2015-01-29 | 2015-01-29 | There is the leakage protecting plug of the abnormal deixis of current supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204441634U true CN204441634U (en) | 2015-07-01 |
Family
ID=53609454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520063672.7U Active CN204441634U (en) | 2015-01-29 | 2015-01-29 | There is the leakage protecting plug of the abnormal deixis of current supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204441634U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576603A (en) * | 2016-01-05 | 2016-05-11 | 余姚市嘉荣电子电器有限公司 | Double-input leakage protector |
-
2015
- 2015-01-29 CN CN201520063672.7U patent/CN204441634U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576603A (en) * | 2016-01-05 | 2016-05-11 | 余姚市嘉荣电子电器有限公司 | Double-input leakage protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |