CN2166534Y - Multi-plug receptacle with overcurrent overvoltage protector - Google Patents
Multi-plug receptacle with overcurrent overvoltage protector Download PDFInfo
- Publication number
- CN2166534Y CN2166534Y CN 93222850 CN93222850U CN2166534Y CN 2166534 Y CN2166534 Y CN 2166534Y CN 93222850 CN93222850 CN 93222850 CN 93222850 U CN93222850 U CN 93222850U CN 2166534 Y CN2166534 Y CN 2166534Y
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- CN
- China
- Prior art keywords
- circuit
- utility
- model
- parallel
- power outlet
- 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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- Emergency Protection Circuit Devices (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The utility model provides a multi-plug receptacle with an overcurrent overvoltage protector. The overcurrent overvoltage protector is connected between an alternating current power supply and the multi-plug receptacle. The utility model is controlled by a voltage stabilizing diode. The utility model uses a relay as an executive element. When the current and the voltage in a circuit exceed the rated value, the utility model can automatically cut off the circuit. The purpose of protecting electric appliances is reached. The utility model has the advantages of convenient operation, good reliability, long service life, and low cost. The utility model can be required to change protective tubes only.
Description
The utility model relates to a kind of multi-tap, particularly a kind of multi-tap that over-current overvoltage protector is arranged.
Existing multi-tap does not generally all have overcurrent and overvoltage protector, thereby when supply voltage increases severely, and scurries into electrical network as nature lightning moment, and institute's circuit closer is sustained damage.
The purpose of this utility model is the above-mentioned shortcoming that will overcome existing multi-tap, and a kind of multi-tap that over-current overvoltage protector is arranged is provided, and makes the work of institute's circuit closer safer.
Solution of the present utility model is: connect an over-current overvoltage protector between the accessory power outlet of AC power and multiple different size; it is by forming with the fuse of power line series connection and voltage stabilizing didoe, relay, the current-limiting resistance in parallel with power line, and the coil two ends of relay are parallel with starting capacitance.
In the such scheme, the normally-closed contact of relay is series in the circuit between accessory power outlet and AC power, and normally opened contact then is parallel in the circuit between accessory power outlet and power supply.Also be parallel with A.C. voltmeter in the accessory power outlet circuit.Be in series with current limiting capacitance in the diode circuit of voltage regulation in parallel.Be in series with indicator light and indicator light switch between accessory power outlet and AC power.
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing.
Fig. 1 is the circuit diagram that the multi-tap of over-current overvoltage protector is arranged.
Referring to accompanying drawing, accessory power outlet has the socket of multiple different size, as hole, garden, slot etc., the band earth connection or not with the ground wire hole.AC power is generally 220 volts of civil powers.Be connected to the over-current overvoltage protector circuit between accessory power outlet 1 and the AC power 2 among the figure.It has the fuse 3 of series connection.Fuse 3 can be a fuse, also can be protective tube.Also be in series with indicator light L and indicator light switch K in addition in the overcurrent protector circuit, indicator light L can be neon bulb or miniature bulb.The protector circuit is parallel with voltage stabilizing didoe D, relay J
0With current-limiting resistance R, they are connected mutually.Relay J wherein
0The coil two ends be parallel with starting capacitance C
1Also can go here and there the current limliting capacitor C in the diode circuit of voltage regulation in parallel
2Be parallel with the alternating voltage Table V in the circuit of accessory power outlet 1.Relay J
0Normally-closed contact J
02Be series in the protector line, and normally opened contact J
01Then be parallel in the protector line.
When voltage just often, the voltage stabilizing didoe electric current is very little, be substantially the open circuit, starting capacitance C
1Charging voltage is lower than the relay pick-up voltage less than 1 volt, and relay is failure to actuate, the accessory power outlet normal power supply.If voltage surpasses more for a long time, voltage stabilizing didoe D conducting, C
1Charging voltage increases above relay J rapidly
0Pick-up voltage, normally opened contact J at this moment
01Closure makes fuse 3 short circuits reach the overvoltage protection purpose.When the electrical appliance electric current was excessive, when surpassing the fuse maximum operating currenbt, fuse 3 also can fuse, and reaches the overvoltage protection purpose.
This socket is compared with existing socket and is had the following advantages:
1. be provided with over-current overvoltage protector and can effectively protect institute's circuit closer, prevent the destruction that thunder and lightning causes.
2. easy to use, good reliability, time between failures is long, only needs to change protective tube and gets final product.
3. have the multi-tap of protector, economical and practical, very big practical value and wide market prospects are arranged.
Claims (5)
1, a kind of multi-tap that over-current overvoltage protector is arranged comprises it is characterized in that the accessory power outlet (1) of multiple different size being in series with fuse (3) between accessory power outlet (1) and the AC power (2), is parallel with voltage stabilizing didoe (D), relay (J
0) and current-limiting resistance (R), its repeat circuit (J
0) the coil two ends be parallel with starting capacitance (C
1).
2, socket as claimed in claim 1 is characterized in that relay (J
0) normally-closed contact (J
02) be in the circuit that is series between accessory power outlet (1) and the AC power (2), and normally opened contact (J
01) then be parallel in the circuit between accessory power outlet (1) and the AC power (2).
3, socket as claimed in claim 1 is characterized in that being parallel with A.C. voltmeter (V) in the circuit of accessory power outlet (1).
4, socket as claimed in claim 1 is characterized in that being in series with limiting capacitor (C in the diode circuit of voltage regulation in parallel
2).
5, socket as claimed in claim 1 is characterized in that being in series with between accessory power outlet (1) and AC power (2) indicator light (L) and indicator light switch (K).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93222850 CN2166534Y (en) | 1993-08-27 | 1993-08-27 | Multi-plug receptacle with overcurrent overvoltage protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93222850 CN2166534Y (en) | 1993-08-27 | 1993-08-27 | Multi-plug receptacle with overcurrent overvoltage protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2166534Y true CN2166534Y (en) | 1994-05-25 |
Family
ID=33801330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93222850 Expired - Fee Related CN2166534Y (en) | 1993-08-27 | 1993-08-27 | Multi-plug receptacle with overcurrent overvoltage protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2166534Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457234A (en) * | 2012-05-30 | 2013-12-18 | 海洋王（东莞）照明科技有限公司 | Overvoltage protective device |
| CN103487618A (en) * | 2013-09-23 | 2014-01-01 | 国家电网公司 | Integrated intelligent switch plate for high-voltage testing |
| CN106229771A (en) * | 2016-08-15 | 2016-12-14 | 北海市深蓝科技发展有限责任公司 | A kind of socket |
| CN110798056A (en) * | 2018-08-03 | 2020-02-14 | 欧姆龙株式会社 | Power supply circuit |
-
1993
- 1993-08-27 CN CN 93222850 patent/CN2166534Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457234A (en) * | 2012-05-30 | 2013-12-18 | 海洋王（东莞）照明科技有限公司 | Overvoltage protective device |
| CN103457234B (en) * | 2012-05-30 | 2017-11-24 | 海洋王（东莞）照明科技有限公司 | Over-pressure safety device |
| CN103487618A (en) * | 2013-09-23 | 2014-01-01 | 国家电网公司 | Integrated intelligent switch plate for high-voltage testing |
| CN103487618B (en) * | 2013-09-23 | 2017-02-01 | 国家电网公司 | Integrated intelligent switch plate for high-voltage testing |
| CN106229771A (en) * | 2016-08-15 | 2016-12-14 | 北海市深蓝科技发展有限责任公司 | A kind of socket |
| CN110798056A (en) * | 2018-08-03 | 2020-02-14 | 欧姆龙株式会社 | Power supply circuit |
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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 |