CN2599593Y - AC domestic electricity-proof center - Google Patents
AC domestic electricity-proof center Download PDFInfo
- Publication number
- CN2599593Y CN2599593Y CNU032364822U CN03236482U CN2599593Y CN 2599593 Y CN2599593 Y CN 2599593Y CN U032364822 U CNU032364822 U CN U032364822U CN 03236482 U CN03236482 U CN 03236482U CN 2599593 Y CN2599593 Y CN 2599593Y
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- CN
- China
- Prior art keywords
- ground wire
- light emitting
- emitting diode
- triode thyristor
- bidirectional triode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a household AC anti-electric shock center, which is connected between a ground wire and a zero wire. The center comprises a bidirectional controlled rectifier, a buzzer and a light emitting diode, which are fixed on a printed circuit board. A first electrode of the bidirectional controlled rectifier is connected with the zero wire, while a second electrode is connected with the ground wire via the buzzer. A control electrode is connected to the ground wire via the light emitting diode. The anti-electric shock center can be an independent body by being connected between the zero wire and the ground wire of a three-core socket, or connected in a electric appliance with a two-core socket. When a voltage of the control electrode reaches a certain value, the bidirectional controlled rectifier is triggered and conductive to make the buzzer sound an alarm and the light emission diode glitter, which informs a user of taking relevant measures in case of an electric shock.
Description
Technical field
The utility model relates to a kind of Electrical Safety protective device, particularly a kind of anti-electrfic centre of alternating current family of using bidirectional triode thyristor.
Background technology
Existing alternating current electrical appliance generally all uses the standard three-prong plug, and two lock pins wherein correspond respectively to the live wire and the zero line of three core sockets, and another lock pin is then corresponding to the ground terminal of socket.When such plug inserts three core sockets, just be communicated with AC power and carried out work, the earth terminal that at this moment requires three core sockets should be firm being communicated with the earth.If this moment, casing was charged, then by avoid the getting an electric shock generation of phenomenon of earth terminal release voltage.In case and the earth terminal ground connection of socket is not firm, just can not in time eliminate the voltage on the casing when casing is charged, make the casing of all electrical appliances all can be charged, when the electrical appliance casing is charged, just be easy to the electric shock phenomenon takes place, influence Electrical Safety.
The socket of two cores does not then have earth terminal at all, is grounded purpose by the ground connection of electrical appliance casing itself acting on, in case the ground connection effect is bad, then gets an electric shock easily yet.
The utility model content
The purpose of this utility model is to provide a kind of alternating current family anti-electrfic centre, in time reports to the police when the casing of ground wire and any electrical appliance is charged, notifies the user to cut off the electricity supply, and avoids the phenomenon of getting an electric shock.
The anti-electrfic centre of alternating current family of the present utility model, be connected between ground wire and the zero line, comprise bidirectional triode thyristor, hummer and light emitting diode, described bidirectional triode thyristor, hummer and light emitting diode are fixed on the printed circuit board (PCB), first utmost point connecting to neutral line of bidirectional triode thyristor, second utmost point is by the hummer ground wire, and the control utmost point is by the light emitting diode ground wire.
Above-mentioned the utility model can independently form an integral body, is connected between the zero line and ground wire of three core sockets, also can be connected the inside of a or two core plug electrical appliance.
The utility model utilizes the control principle of the control utmost point of bidirectional triode thyristor, when the voltage of the control utmost point reaches certain value, just can trigger the bidirectional triode thyristor conducting.And ground wire electrification just can make the controllable silicon conducting, thereby form the path between zero line and the ground wire when reaching certain voltage.Like this, reach certain voltage, just can trigger bidirectional triode thyristor in case the earth terminal of the casing of electrical appliance or three core sockets is charged, make conducting between alternating current zero line and the ground wire, and then make buzzer warning and lumination of light emitting diode flicker, notify the user to take measures, thereby avoid getting an electric shock.
Description of drawings
Fig. 1 is a circuit theory synoptic diagram of the present utility model.
Embodiment
As shown in Figure 1, the anti-electrfic centre of alternating current of the present utility model family is that first utmost point 10 with bidirectional triode thyristor 9 is connected with the zero line 4 of alternating current, then is connected with hummer 1 on its second utmost point 12, and another electrode of hummer 1 then is connected on the ground wire 3 of socket.13 of the control utmost points of bidirectional triode thyristor 9 connect a light emitting diode 2, and another electrode of light emitting diode 2 is connected with ground wire 3.
For guaranteeing just can to make controllable silicon 9 conductings after reaching certain voltage in that ground wire 3 is charged, also, be connected between the control utmost point 13 and the zero line 4 at the side of bidirectional triode thyristor 9 voltage stabilizing diode 8 in parallel and capacitor 7.
The utility model in use, can be fixed to be connected and make independently anti-shock device on the printed circuit board (PCB), or be installed in three core socket inside, and also can connect the electrical appliance inside that two core plugs are installed after finishing, the utility model earth terminal is linked to each other with casing.
When the utility model in use, not charged as outlet ground end or electrical appliance casing, then the voltage of the control utmost point 13 of bidirectional triode thyristor is zero, can not trigger controllable silicon 9 conductings, then can make the alternating current normal power supply.And it is in a single day charged and when reaching certain voltage value when outlet ground end or electrical appliance casing, the voltage of the control utmost point 13 of bidirectional triode thyristor 9 just no longer is zero, just can trigger the controllable silicon conducting, hummer 1 is sounded a buzzer, light emitting diode 2 flickers simultaneously are luminous, make the user know that casing is charged, thus the generation of the phenomenon of avoiding getting an electric shock.
Above-mentioned the utility model can use on the electrical appliance of two core plugs, uses as the charged alarm of casing; Also can be connected on the three core sockets, use as the anti-electrfic centre of whole household electrical appliances.
Claims (3)
1. an alternating current family prevents electrfic centre, be connected between ground wire and the zero line, it is characterized in that: comprise bidirectional triode thyristor, hummer and light emitting diode, described bidirectional triode thyristor, hummer and light emitting diode are fixed on the printed circuit board (PCB), first utmost point connecting to neutral line of bidirectional triode thyristor, second utmost point is by the hummer ground wire, and the control utmost point is by the light emitting diode ground wire.
2. the anti-electrfic centre of alternating current family according to claim 1 is characterized in that: be parallel with voltage stabilizing diode and capacitor between zero line and ground wire.
3. the anti-electrfic centre of alternating current family according to claim 1 is characterized in that: also be provided with two resistance and be connected between zero line and the ground wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032364822U CN2599593Y (en) | 2003-01-21 | 2003-01-21 | AC domestic electricity-proof center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032364822U CN2599593Y (en) | 2003-01-21 | 2003-01-21 | AC domestic electricity-proof center |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2599593Y true CN2599593Y (en) | 2004-01-14 |
Family
ID=34166797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU032364822U Expired - Fee Related CN2599593Y (en) | 2003-01-21 | 2003-01-21 | AC domestic electricity-proof center |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2599593Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105572521A (en) * | 2014-10-09 | 2016-05-11 | 苏州益而益电器制造有限公司 | Ground wire live-line detection display circuit and electric device |
-
2003
- 2003-01-21 CN CNU032364822U patent/CN2599593Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105572521A (en) * | 2014-10-09 | 2016-05-11 | 苏州益而益电器制造有限公司 | Ground wire live-line detection display circuit and electric device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |