CN2146789Y - Multi-functional safety socket - Google Patents
Multi-functional safety socket Download PDFInfo
- Publication number
- CN2146789Y CN2146789Y CN 93206521 CN93206521U CN2146789Y CN 2146789 Y CN2146789 Y CN 2146789Y CN 93206521 CN93206521 CN 93206521 CN 93206521 U CN93206521 U CN 93206521U CN 2146789 Y CN2146789 Y CN 2146789Y
- Authority
- CN
- China
- Prior art keywords
- socket
- safety socket
- triode thyristor
- bidirectional triode
- resistance
- 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
Links
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- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model introduces a multi-functional safety socket to meet requirements of the safe operation of various electric appliances. The multi-functional safety socket is realized by that the inner part of an original socket is additionally provided with a protective tube and an overvoltage protection element. As a consequence, the multi-functional safety socket has functions of over-current protection and overvoltage protection. When the power supply voltage reaches the rated voltage protection value of the safety socket, the safety socket can cut off the power supply in time to protect the safety of the electric appliances.
Description
The utility model has related to electrical connector, and specifically a kind of have overvoltage, a socket of overcurrent protection function.Be applicable to being connected of electrical appliance and power supply.
At present,, the protection of electrical appliance has been seemed more and more important along with the universal use of various electrical equipment, to the common components of power consumption equipment---the improvement of supply socket function has become the heat subject of people's research.Number of patent application 93200366.4 once disclosed a kind of socket with overvoltage and overcurrent protection function, i.e. " multifunctional protecting socket ".This socket is assembled in socket inside with a bidirectional triode thyristor, a resistance and a protective tube, can play overvoltage and overcurrent protection, and device is reusable, and is practical.But, the over-voltage protection element bidirectional triode thyristor by and conducting be that electric current by the resistance of flowing through decides, in resistance branch, exist electric current all the time, influence the useful life of bidirectional triode thyristor, and cause misoperation easily, unfavorable to protective circuit.
The purpose of this utility model is to release a kind of can the repeated use in circuit, do not produce misoperation, does not produce the multifunctional protecting socket of power consumption so that safety socket is able to higher generalization and use under normal power supply voltage.Design of the present utility model is to utilize the voltage-sensitive characteristic of piezo-resistance and the switching characteristic of bidirectional triode thyristor to realize overvoltage protection.
Task of the present utility model is by with an electric current protective tube, a bidirectional triode thyristor, and piezo-resistance and diode are installed in that socket inside realizes.The conducting of bidirectional triode thyristor with by controlling by gate trigger current.As long as change gate trigger current just can change bidirectional triode thyristor end with conducting to satisfy the needs of protective circuit.The utility model is serially connected in the electric current protective tube in the power circuit, and two anodes of bidirectional triode thyristor are attempted by the load two ends, and an end of gate pole, the other end and the diode of piezo-resistance one termination bidirectional triode thyristor joins.The anode of another termination bidirectional triode thyristor of diode utilizes the variation of supply voltage to change ending and conducting of piezo-resistance, utilizes the trigger current of gate pole that ending of bidirectional triode thyristor connected with conducting and mains voltage variations.Because the nonlinear characteristic of piezo-resistance; under normal working voltage, be in cut-off state; gate pole does not have electric current to flow through; during the magnitude of voltage that has only voltage to be elevated to need protection, the piezo-resistance conducting, trigger current passes through gate pole; bidirectional triode thyristor conducting, short circuit; short circuit current blowout current protective tube is cut off the electricity supply, thereby has protected electrical appliance.Diode in the utility model is provided with for the misoperation that the pulse in the power supply and surge current cause in order to prevent highly sensitive bidirectional triode thyristor.
The utility model has prolonged the life-span of over-voltage protection element owing to adopted piezo-resistance and bidirectional triode thyristor as over-voltage protection element, and is safe and reliable, at AC and DC, all can use under the high and low voltage, helps using and promoting of safety socket.
Electric current protective tube in the utility model adopts socket connection to be convenient to change, bidirectional triode thyristor, piezo-resistance, and diode adopts screw to connect or welding.
Specific embodiment of the utility model is provided by following accompanying drawing:
Fig. 1 is circuit theory diagrams of the present utility model
Fig. 2 is an internal structure schematic diagram of the present utility model
As scheming: 1,2:(1) be the electric current protective tube, (2) are piezo-resistance, and (3) are diode, and (4) are bidirectional triode thyristor, and (5) are conductive copper sheet, and (6), (7), (8) are terminal screw, and (9) are jack.One of piezo-resistance (2) terminates on the gate pole G of bidirectional triode thyristor (4), another terminating diode (3), the anode A 2 of another termination bidirectional triode thyristor (4) of diode (3), two anodes of bidirectional triode thyristor (4) are received on terminal screw (6), (7).Supply voltage just often, piezo-resistance (2) is ended, and does not have trigger current, bidirectional triode thyristor (4) ends, the socket normal power supply.When supply voltage raises when reaching overvoltage protection value of the present utility model for some reason, piezo-resistance (2) conducting, bidirectional triode thyristor (4) conducting that is triggered forms short circuit, and short circuit current blowout current protective tube (1) is cut off the electricity supply, and has protected electrical appliance.
Claims (1)
- A kind of safety socket that contains overcurrent protection is characterized in that also being equipped with in this socket one by piezo-resistance (2), diode (3), and the over-voltage protection element of bidirectional triode thyristor (4) composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93206521 CN2146789Y (en) | 1993-03-22 | 1993-03-22 | Multi-functional safety socket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93206521 CN2146789Y (en) | 1993-03-22 | 1993-03-22 | Multi-functional safety socket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2146789Y true CN2146789Y (en) | 1993-11-17 |
Family
ID=33789506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93206521 Expired - Fee Related CN2146789Y (en) | 1993-03-22 | 1993-03-22 | Multi-functional safety socket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2146789Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111244684A (en) * | 2020-01-15 | 2020-06-05 | 陈景顺 | Anti-surge socket based on electromagnetic transformation |
-
1993
- 1993-03-22 CN CN 93206521 patent/CN2146789Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111244684A (en) * | 2020-01-15 | 2020-06-05 | 陈景顺 | Anti-surge socket based on electromagnetic transformation |
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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 |