CN202434818U - Power socket with electric leakage alarming function - Google Patents
Power socket with electric leakage alarming function Download PDFInfo
- Publication number
- CN202434818U CN202434818U CN2012200528841U CN201220052884U CN202434818U CN 202434818 U CN202434818 U CN 202434818U CN 2012200528841 U CN2012200528841 U CN 2012200528841U CN 201220052884 U CN201220052884 U CN 201220052884U CN 202434818 U CN202434818 U CN 202434818U
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- China
- Prior art keywords
- ground wire
- electric leakage
- selector switch
- power socket
- zero line
- Prior art date
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- Expired - Lifetime
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Abstract
The utility model discloses a power socket with an electric leakage alarming function. The power socket comprises a socket body, and a ground wire, a zero line and a live wire, which are arranged in the socket body. A sound and light alarming circuit is arranged between the ground wire and the null line, and consists of a current limiting resistor, a neon tube and a piezoelectric ceramic chip, which are connected in series. The power socket also comprises a selector switch optionally connected between the null line and the ground wire. The sound and light alarming circuit can be bridged between the null line and the ground wire by the ON position of the selector switch. A metal bracket connected with the ground wire is arranged on the socket body. By the structure, the power socket has the advantages that a domestic electrical appliance comprising a shell with electric leakage can be detected, and an electric leakage alarm can be instantly given under the condition of no ground wire, and whether a power cord has an open circuit failure or not can be detected at any time, so that the power socket is safer in use.
Description
Technical field
The utility model relates to a kind of supply socket, relates in particular to a kind of supply socket with warning function of electric leakage.
Background technology
The power-line plug of existing most of household electrical appliance such as electric rice cooker, electric iron, electric fan, washing machine etc. all adopts three-pin plug; Wherein a pin connects the shell of household electrical appliance; In case safety; All do not have special-purpose earth connection but in one's early years build the residential houses, the earth terminal of Three-hole socket unsettled need not, and have potential safety hazard.
Summary of the invention
Have above-mentioned deficiency in the prior art in order to overcome, the utility model provides a kind of supply socket with warning function of electric leakage simple in structure, easy to use, that can send sound and light alarm when leaking electricity.
The technical scheme that the utility model solves its technical problem is: a kind of supply socket with warning function of electric leakage; Comprise jack body and be located at ground wire, zero line and the live wire in this jack body; Be provided with a sound light alarming circuit between said ground wire and the said zero line; This sound light alarming circuit is made up of current-limiting resistance, neon tube and piezoelectric ceramic piece three series connection; Comprise that also an alternative is connected the selector switch between said zero line and the said ground wire, the on-position of this selector switch can make said sound light alarming circuit be connected across between said zero line and the said ground wire, and said jack body is provided with the metallic support that is connected with said ground wire.
Further, also comprise a bleeder resistor, this bleeder resistor and said sound light alarming circuit are in parallel.
The utility model catches earlier and touches metallic support before use, owing to have distributed capacitance between human body and the earth; Current-limiting resistance, neon tube and piezoelectric ceramic piece are formed surveyed electric installation; Through selector switch, can detect power line, if what be connected with selector switch is the live wire of power line; Because the metering function of current-limiting resistance; Piezoelectric ceramic piece and neon tube just send sound and light alarm, if what be connected with selector switch is the zero line of power line, piezoelectric ceramic piece and neon tube just can not send sound and light alarm.Selector switch is a toggle switch, and just can to judge what be connected with selector switch be live wire or zero line as long as stir selector switch, before the attaching plug of household appliance does not insert the utility model; Touch metallic support with hand; Stir the position of selector switch, can detect live wire and have or not and open circuit, after the attaching plug of household appliance inserts the utility model; Can detect zero line and have or not and open circuit, whether this can send sound and light alarm from piezoelectric ceramic piece and neon tube is able to differentiate.When using the utility model,,, thereby can monitor at any time whether ground wire is charged owing to current-limiting resistance, neon tube and piezoelectric ceramic piece are connected across between ground wire and the zero line as long as keep the position of selector switch and the contacted state of zero line.If household appliance is because fault makes outer casing electrification; As long as the single-phase three-electrode power plug of this electrical equipment one inserts in the utility model; Piezoelectric ceramic piece and neon tube send sound and light alarm immediately, if the shell of household appliance is not charged, piezoelectric ceramic piece and neon tube just can not send sound and light alarm so.
Because the two ends of sound light alarming circuit are parallel with bleeder resistor; To the faradic household appliance of shell band; Because the induced potential internal resistance is very big, use the utility model after, very little induced current will carry out earial drainage through the bleeder resistor that is connected in parallel on the sound light alarming circuit two ends; Induced potential that shell is with is reduced rapidly, and piezoelectric ceramic piece and neon tube just can not send sound and light alarm.
The beneficial effect of the utility model is: adopt said structure, making is not having under the condition of ground wire, and the household appliance of body leakage is detected and send immediately leakage-current alarm, but and the detection at any time power line whether open circuit fault is arranged, use safer; Simultaneously, metal shell is had faradic household appliance, can eliminate automatically.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further explain.
With reference to Fig. 1; A kind of supply socket with warning function of electric leakage; Comprise jack body and be located at ground wire E, zero line N and the live wire L in this jack body; Be provided with a sound light alarming circuit between said ground wire E and the said zero line N, this sound light alarming circuit is made up of current-limiting resistance R1, neon tube Ne and piezoelectric ceramic piece HTD three series connection, comprises that also an alternative is connected the selector switch K between said zero line N and the said ground wire E; The on-position of this selector switch K can make said sound light alarming circuit be connected across between said zero line N and the said ground wire E, and said jack body is provided with the metallic support Q that is connected with said ground wire E.
The utility model catches earlier and touches metallic support Q before use, owing to have distributed capacitance between human body and the earth; Current-limiting resistance R1, neon tube Ne and piezoelectric ceramic piece HTD are formed survey electric installation; Through selector switch K, can detect power line, if that be connected with selector switch K is the live wire L of power line; Because the metering function of current-limiting resistance R1; Piezoelectric ceramic piece HTD and neon tube Ne just send sound and light alarm, if that be connected with selector switch K is the zero line N of power line, piezoelectric ceramic piece HTD and neon tube Ne just can not send sound and light alarm.Selector switch K is a toggle switch, and just can to judge what be connected with selector switch K be live wire L or zero line N as long as stir selector switch K, before the attaching plug of household appliance does not insert the utility model; Touch metallic support Q with hand; Stir the position of selector switch K, can detect live wire L and have or not and open circuit, after the attaching plug of household appliance inserts the utility model; Can detect zero line N and have or not and open circuit, whether this can send sound and light alarm from piezoelectric ceramic piece HTD and neon tube Ne is able to differentiate.When using the utility model; As long as keep the position of selector switch K and the contacted state of zero line N; Because current-limiting resistance R1, neon tube Ne and piezoelectric ceramic piece HTD are connected across between ground wire E and the zero line N, thereby can monitor at any time whether ground wire E is charged.If household appliance is because fault makes outer casing electrification; As long as the single-phase three-electrode power plug of this electrical equipment one inserts in the utility model; Piezoelectric ceramic piece HTD and neon tube Ne send sound and light alarm immediately; If the shell of household appliance is not charged, piezoelectric ceramic piece HTD and neon tube Ne just can not send sound and light alarm so.
Preferably, also comprise a bleeder resistor R2, this bleeder resistor R2 and said sound light alarming circuit are in parallel.Because the two ends of sound light alarming circuit are parallel with bleeder resistor R2; To the faradic household appliance of shell band; Because the induced potential internal resistance is very big, use the utility model after, very little induced current will carry out earial drainage through the bleeder resistor R2 that is connected in parallel on the sound light alarming circuit two ends; Induced potential that shell is with is reduced rapidly, and piezoelectric ceramic piece HTD and neon tube Ne just can not send sound and light alarm.
Adopt said structure, making is not having under the condition of ground wire, and the household appliance of body leakage is detected and send immediately leakage-current alarm, but and the detection at any time power line whether open circuit fault is arranged, use safer; Simultaneously, metal shell is had faradic household appliance, can eliminate automatically.
Claims (2)
1. supply socket with warning function of electric leakage; Comprise jack body and be located at ground wire, zero line and the live wire in this jack body; It is characterized in that: be provided with a sound light alarming circuit between said ground wire and the said zero line; This sound light alarming circuit is made up of current-limiting resistance, neon tube and piezoelectric ceramic piece three series connection; Comprise that also an alternative is connected the selector switch between said zero line and the said ground wire, the on-position of this selector switch can make said sound light alarming circuit be connected across between said zero line and the said ground wire, and said jack body is provided with the metallic support that is connected with said ground wire.
2. according to the described supply socket with warning function of electric leakage of claim 1, it is characterized in that: also comprise a bleeder resistor, this bleeder resistor and said sound light alarming circuit are in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200528841U CN202434818U (en) | 2012-02-20 | 2012-02-20 | Power socket with electric leakage alarming function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200528841U CN202434818U (en) | 2012-02-20 | 2012-02-20 | Power socket with electric leakage alarming function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202434818U true CN202434818U (en) | 2012-09-12 |
Family
ID=46784228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200528841U Expired - Lifetime CN202434818U (en) | 2012-02-20 | 2012-02-20 | Power socket with electric leakage alarming function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202434818U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103543382A (en) * | 2013-10-29 | 2014-01-29 | 中国华冶科工集团有限公司 | Single-phase socket capable of detecting wiring |
| CN103825150A (en) * | 2014-02-17 | 2014-05-28 | 黄小凡 | Non-linear alarm display socket |
| CN104062533A (en) * | 2013-03-20 | 2014-09-24 | 海洋王（东莞）照明科技有限公司 | Electricity leakage prompting circuit |
| CN104502781A (en) * | 2014-12-31 | 2015-04-08 | 常熟市九洲电器设备有限公司 | Equipment electric leakage detection circuit |
| CN104749455A (en) * | 2013-12-31 | 2015-07-01 | 林开兵 | Circuit or electric appliance detecting/monitoring device |
| CN107315124A (en) * | 2017-06-13 | 2017-11-03 | 韩通振 | A kind of farmland insert row rupture of line suggestion device |
-
2012
- 2012-02-20 CN CN2012200528841U patent/CN202434818U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104062533A (en) * | 2013-03-20 | 2014-09-24 | 海洋王（东莞）照明科技有限公司 | Electricity leakage prompting circuit |
| CN103543382A (en) * | 2013-10-29 | 2014-01-29 | 中国华冶科工集团有限公司 | Single-phase socket capable of detecting wiring |
| CN104749455A (en) * | 2013-12-31 | 2015-07-01 | 林开兵 | Circuit or electric appliance detecting/monitoring device |
| CN104749455B (en) * | 2013-12-31 | 2017-08-11 | 林开兵 | A kind of circuit or Electrical Testing, monitoring device |
| CN103825150A (en) * | 2014-02-17 | 2014-05-28 | 黄小凡 | Non-linear alarm display socket |
| CN104502781A (en) * | 2014-12-31 | 2015-04-08 | 常熟市九洲电器设备有限公司 | Equipment electric leakage detection circuit |
| CN107315124A (en) * | 2017-06-13 | 2017-11-03 | 韩通振 | A kind of farmland insert row rupture of line suggestion device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120912 |
|
| CX01 | Expiry of patent term |