CN2216298Y - Outlet (plug) - Google Patents
Outlet (plug) Download PDFInfo
- Publication number
- CN2216298Y CN2216298Y CN 94235804 CN94235804U CN2216298Y CN 2216298 Y CN2216298 Y CN 2216298Y CN 94235804 CN94235804 CN 94235804 CN 94235804 U CN94235804 U CN 94235804U CN 2216298 Y CN2216298 Y CN 2216298Y
- Authority
- CN
- China
- Prior art keywords
- resistance
- binding post
- power supply
- utility
- model
- 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)
Abstract
The utility model relates to the connection of electric equipment and a power supply, particularly a power socket (plug). The utility model is characterized in that an alarm circuit for electrical leakage is connected between an earth wiring terminal (D) and a zero wiring terminal (N), and a voltage dependent resistor (MY) is connected between a fire wiring terminal (L) and the zero wiring terminal (N). The alarm circuit for electrical leakage can generate self-exciting oscillation to send out a sound for alarming when the electrical leakage of a casing of the electric equipment happens. When the voltage of the power supply goes over the limit voltage of the electric equipment, a fuse which is connected with a power supply circuit in series is fused, so the power supply is cut off. The utility model has the advantages that the structure is simple, the cost is low, the utility model can give an alarm when the electrical leakage happens, and the power supply can be cut off when the overvoltage happens. The utility model can be widely used for the connection of the various electric equipment and the power supply.
Description
What the utility model related to power consumption equipment and power supply is connected particularly a kind of supply socket (plug).
As everyone knows, the supply socket of using (plug) is at present formed by plastic casing, metal intermediate plate (metal column), utilize socket and plug that power consumption equipment and power supply are coupled together, its weak point is when various overvoltage phenomenon appears in equipment electric leakage or circuit, can not play the effect of reporting to the police and cutting off the electricity supply, easily cause the loss of loss of life or personal injury and equipment.
The novel purpose of this reality just is to overcome the deficiencies in the prior art, and a kind of supply socket (plug) that provides a kind of leakage-current alarm, overvoltage to cut off the electricity supply.
For achieving the above object, novel plastic casing, earth terminal, firewire binding post, the zero line binding post of being provided with of this reality, it is characterized in that being connected to the leakage-current alarm circuit between earth terminal and the zero line binding post, be connected to piezo-resistance between firewire binding post and the zero line binding post.
The utility model leakage-current alarm circuit is by a termination earth terminal of resistance (R1), the other end of resistance (R1) respectively with an end of resistance (R3), the emitter (e) of transistor (BG), one end of piezoelectric patches (YD) is connected, the other end of resistance (R3) is connected with diode (D1) negative pole, the positive pole of diode (D1) respectively with diode (D2) positive pole, the base stage (b) of transistor (BG) is connected, the negative pole of diode (D2) is connected with an end of resistance (R4), the other end of resistance (R4), the collector electrode (c) of transistor (BG) and the other end of piezoelectric patches (YD) are connected with resistance (R2), and the other end of resistance (R2) is connected with the zero line binding post.
The utility model is connected to piezo-resistance owing to be connected to the leakage-current alarm circuit between earth terminal and zero line binding post between firewire binding post and zero line binding post, so have the advantage that simple in structure, power consumption equipment leakage-current alarm, overvoltage are cut off the electricity supply.
Description of drawings:
Accompanying drawing is a conspectus of the present utility model, also is the line map of a kind of embodiment.
Mark among the figure: firewire binding post (L), zero line binding post (N), earth terminal (D), resistance (R1), (R2), (R3), (R4), piezo-resistance (MY), diode (D1), (D2), triode (BG), piezoelectric patches (YD).
Embodiment: the structure of socket (plug) shell, firewire binding post (L), zero line binding post (N), earth terminal (D) and connect same as the prior artly, this does not give unnecessary details.When power consumption equipment uses 220 volts of voltages; be connected leakage protection circuit between earth terminal (D) and the zero line binding post (N); leakage protection circuit is by a termination earth terminal of resistance (R1); the other end of resistance (R1) respectively with an end of resistance (R3); the emitter (e) of transistor (BG); one end of piezoelectric patches (YD) is connected; the other end of resistance (R3) is connected with diode (D1) negative pole; the positive pole of diode (D1) respectively with diode (D2) positive pole; the base stage (b) of transistor (BG) is connected; the negative pole of diode (D2) is connected with an end of resistance (R4); the other end of resistance (R4); the collector electrode (c) of transistor (BG) and the other end of piezoelectric patches (YD) are connected with resistance (R2), and the other end of resistance (R2) is connected with the zero line binding post.The parameter of each element is respectively in the above-mentioned circuit: resistance (R1), (R2) debugging are 150 kilo-ohms, resistance (R3) debugging is that 20 kilo-ohms, diode (D1), (D2) select for use IN4004 type, triode (BG) to select for use 9014 types, piezoelectric patches (YD) to select the HTD20A/1 type for use, be connected to piezo-resistance (MY) between firewire binding post (L) and the zero line binding post (N), piezo-resistance is selected the MY31--390/0.2 type for use.When connected power consumption equipment body leakage; electrical leakage voltage makes earth terminal (D) charged through the ground wire connecting line; make between earth terminal (D) and the zero line binding post (N) and form electrical leakage voltage; for the leakage-current alarm circuit provides operating voltage; oscillating circuit in the leakage-current alarm circuit produces self-oscillation; signal after the vibration is sent by piezoelectric patches (YD); electrical leakage voltage is high more; the alarm signal sound is big more; when voltage was crossed the power consumption equipment limiting voltage, piezo-resistance (MY) resistance diminished immediately, made power circuit produce short circuit current; fusing is connected on the fuse in the power circuit, and the protection power consumption equipment damages because of overvoltage.
Claims (2)
1, a kind of supply socket (plug), be provided with plastic casing, earth terminal, zero line binding post, firewire binding post, it is characterized in that being connected to the leakage-current alarm circuit between earth terminal and the zero line binding post, be connected to piezo-resistance between firewire binding post and the zero line binding post.
2, a kind of supply socket according to claim 1 (plug), it is characterized in that the termination earth terminal of said leakage-current alarm circuit by resistance (R1), the other end of resistance (R1) respectively with an end of resistance (R3), the emitter (e) of transistor (BG), one end of piezoelectric patches (YD) is connected, the other end of resistance (R3) is connected with diode (D1) negative pole, the positive pole of diode (D1) respectively with diode (D2) positive pole, the base stage (b) of transistor (BG) is connected, the negative pole of diode (D2) is connected with an end of resistance (R4), the other end of resistance (R4), the collector electrode (c) of transistor (BG) and the other end of piezoelectric patches (YD) are connected with resistance (R2), and the other end of resistance (R2) is connected with the zero line binding post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94235804 CN2216298Y (en) | 1994-11-12 | 1994-11-12 | Outlet (plug) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94235804 CN2216298Y (en) | 1994-11-12 | 1994-11-12 | Outlet (plug) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2216298Y true CN2216298Y (en) | 1995-12-27 |
Family
ID=33843972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94235804 Expired - Fee Related CN2216298Y (en) | 1994-11-12 | 1994-11-12 | Outlet (plug) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2216298Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103097321A (en) * | 2010-07-09 | 2013-05-08 | 普里科尔股份有限公司 | Electrochemically treated nutrient solutions |
| 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 |
| CN103592523A (en) * | 2013-11-04 | 2014-02-19 | 国家电网公司 | Simple socket phase sequence detector |
| CN103840326A (en) * | 2014-03-13 | 2014-06-04 | 华北电力大学（保定） | Current socket with fault indication |
-
1994
- 1994-11-12 CN CN 94235804 patent/CN2216298Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103097321A (en) * | 2010-07-09 | 2013-05-08 | 普里科尔股份有限公司 | Electrochemically treated nutrient solutions |
| 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 |
| CN103592523A (en) * | 2013-11-04 | 2014-02-19 | 国家电网公司 | Simple socket phase sequence detector |
| CN103840326A (en) * | 2014-03-13 | 2014-06-04 | 华北电力大学（保定） | Current socket with fault indication |
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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 |