CN202009140U - Safe connector for AC (alternating current) power supply - Google Patents
Safe connector for AC (alternating current) power supply Download PDFInfo
- Publication number
- CN202009140U CN202009140U CN2011200264764U CN201120026476U CN202009140U CN 202009140 U CN202009140 U CN 202009140U CN 2011200264764 U CN2011200264764 U CN 2011200264764U CN 201120026476 U CN201120026476 U CN 201120026476U CN 202009140 U CN202009140 U CN 202009140U
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- plug
- relay
- power
- phase
- electrical appliance
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Abstract
The utility model provides a safe connector for an AC (alternating current) power supply, which mainly comprises a plug and a socket. The safe connector is characterized in that one end of a relay coil is connected with a grounding wire terminal in the plug, and the other end of the relay coil is connected with a phase wire wiring terminal in the plug; and a power cord in the plug is connected with an electric appliance through a normal-open point of a relay. With the adoption of the safe connector, the safety of the connector of the AC power supply is greatly improved, and therefore, electric shock accidents of human bodies can be better avoided.
Description
Technical field
The utility model relates to a kind of connector, especially the AC power breaking piece.
Technical background
Known AC power connector is made of plugs and sockets.In band ground, single-phase the two poles of the earth socket, faces socket right-hand lay jack should meet power supply phase line L in accordance with regulations, and left-hand is answered connecting to neutral line N to jack, and middle jack is answered earth connection PE; And answer phase-connecting wire L to contact pin in the face of plug contact pin left-hand, and the right-hand lay contact pin is answered connecting to neutral line N, and middle contact pin is answered earth connection PE.But, be not that everyone knows this regulation, even some electrician also under cas fortuit, connects the dislocation of the zero line N phase line L on the plug.
In addition, the not good phenomenon of ground wire PE contact condition in band ground, the single-phase the two poles of the earth plug also occurs now and then, even has the people that the ground connection contact pin on band ground, the two poles of the earth plug is pulled, and band ground, single-phase the two poles of the earth plug is worked as single-phase the two poles of the earth plug use.
These phenomenons all very easily constitute a threat to user's personal safety.
Summary of the invention
The purpose of this utility model attempts to overcome the deficiencies in the prior art exactly, and a kind of AC power breaking piece safe, reliable, easy to use is provided.
For achieving the above object, the technical solution of the utility model mainly comprises plug and socket, it is characterized in that: one of relay coil is connected with ground wire terminal in the plug, and the other end of described relay coil is connected with phase terminal in the plug; Power line in the plug is connected with electrical appliance by relay normally open point.
Power line in the described plug also can be connected with electrical appliance by often the making war of contactor of described relay control.
The coil of described relay also can be connected on adapter secondary in, elementary one of described adapter is connected with ground wire terminal in the plug, the other end is connected with phase terminal in the plug.
Phase line in the described plug also can be connected successively with the ground wire in light-emitting diode, resistance, the plug; Described light-emitting diode and photo resistance are near being sealed; This photo resistance is connected in the base loop of triode; This transistor collector links to each other with described relay coil, and described relay normally open point is connected in the AC power of electrical appliance.
After adopting said structure, can avoid because of AC power connector wiring error preferably or the ground protection line is missed, the not good electric shock accidents that causes of contact condition.
Description of drawings
Fig. 1. be the electrical schematic diagram of first embodiment of the utility model.
Fig. 2. be the electrical schematic diagram of second embodiment of the utility model.
Fig. 3. be the electrical schematic diagram of the 3rd embodiment of the utility model.
Among the figure: 1. band ground, single-phase the two poles of the earth plug 2. adapter PE. ground wire L. phase line N. zero line K. relay VL. light-emitting diode RP. photo resistance R1.R2.R3. resistance VT. triode VD. diodes
Embodiment
Below in conjunction with embodiment the utility model is further described:
Embodiment 1
As shown in Figure 1: under the errorless prerequisite of single-phase the two poles of the earth band ground socket wiring, one of relay coil K is connected with ground wire terminal PE in the plug 1, and the other end of relay K coil is connected with phase line L binding post in the plug 1; The coil of relay K obtains electricity and makes its normal closure of making war.Power line in the plug is connected with electrical appliance by normal battle of relay K, and electrical appliance obtains electricity and starts.If ground wire PE does not connect, perhaps phase line L is connected with zero line N transposition, and relay K meeting miss operation, electrical appliance are also so and no power plays the effect of protection human body safety.
Show as Fig. 2: the coil of relay K also can be connected in 2 levels of adapter, and elementary one of adapter 2 is connected with ground wire PE terminal in the plug 1, and the other end is connected with phase line L binding post in the plug 1.Under the errorless prerequisite of single-phase the two poles of the earth band ground socket wiring, electrical appliance obtains electricity and starts.If ground wire PE does not connect, perhaps the phase line L in the plug 1 is connected with zero line N dislocation, and relay K meeting miss operation, electrical appliance are also so and no power plays the effect of protection human body safety.
Embodiment 3
As shown in Figure 3: the ground wire PE of the phase line L in the plug 1, light-emitting diode VL, resistance R 1, plug 1 connects successively; This light-emitting diode VL and photosensitive resistor rp are near being sealed; This photosensitive resistor rp is connected in the base loop of triode VT; Triode VT collector electrode links to each other with the relay K coil, and normal battle of relay K is connected in the AC power of electrical appliance.Under the errorless prerequisite of single-phase the two poles of the earth band ground socket wiring, light-emitting diode VL lights and light-emitting diode VL when abutting against together photosensitive resistor rp resistance and being varied down to set point, triode VT conducting, relay K adhesive.Electrical appliance is by obtaining electricity work the normal battle of relay K.If, among the plug worker wiring wrong, light-emitting diode VL can not light, relay K can adhesive yet, electrical appliance is also therefore and no power plays the effect of protection human body safety.
Claims (4)
1. an AC power breaking piece mainly comprises plug and socket, it is characterized in that: one of relay coil is connected with ground wire terminal in the plug, and the other end of described relay coil is connected with phase terminal in the plug; Power line in the plug is connected with electrical appliance by relay normally open point.
2. AC power breaking piece according to claim 1 is characterized in that: the power line in the described plug also can be connected with electrical appliance by often the making war of contactor of described relay control.
3. AC power breaking piece according to claim 1, it is characterized in that: the coil of described relay also can be connected on adapter secondary in, elementary one of described adapter is connected with ground wire terminal in the plug, and the other end is connected with phase terminal in the plug.
4. AC power breaking piece according to claim 1 is characterized in that: the phase line in the described plug also can be connected successively with the ground wire in light-emitting diode, resistance, the plug; Described light-emitting diode and photo resistance are near being sealed; This photo resistance is connected in the base loop of triode; This transistor collector links to each other with described relay coil, and described relay normally open point is connected in the AC power of electrical appliance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200264764U CN202009140U (en) | 2011-01-26 | 2011-01-26 | Safe connector for AC (alternating current) power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200264764U CN202009140U (en) | 2011-01-26 | 2011-01-26 | Safe connector for AC (alternating current) power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202009140U true CN202009140U (en) | 2011-10-12 |
Family
ID=44750797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200264764U Expired - Fee Related CN202009140U (en) | 2011-01-26 | 2011-01-26 | Safe connector for AC (alternating current) power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202009140U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108025655A (en) * | 2015-08-06 | 2018-05-11 | 伊帕尔科公司 | System for establishing temporary electrical power connection automatically |
-
2011
- 2011-01-26 CN CN2011200264764U patent/CN202009140U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108025655A (en) * | 2015-08-06 | 2018-05-11 | 伊帕尔科公司 | System for establishing temporary electrical power connection automatically |
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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 |
Granted publication date: 20111012 Termination date: 20130126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |