CN2534700Y - Resistant load safety power supply socket - Google Patents
Resistant load safety power supply socket Download PDFInfo
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- CN2534700Y CN2534700Y CN 02222286 CN02222286U CN2534700Y CN 2534700 Y CN2534700 Y CN 2534700Y CN 02222286 CN02222286 CN 02222286 CN 02222286 U CN02222286 U CN 02222286U CN 2534700 Y CN2534700 Y CN 2534700Y
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Abstract
The utility model provides a resistive load safe power supply socket and comprises an external shell and a plurality of groups of jacks. Small holes are drilled at the center of each group of jacks. The utility model is characterized in that control circuits are connected between the socket jacks and the power, and consist of an AC power supply circuit, an identification circuit, an execution circuit and a reset circuit. The utility model can judge whether the load inserted is the resistive load or the non-resistive load, provides the electric voltage to the jacks in the case of resistive load, and controls the circuits not to provide the voltage to the jacks in the case of non-resistive load, for example, when a finger or an iron wire is inserted into the jacks. Thus, electric shock accidents are avoided. When the resistive load inserted into the jacks is disconnected, the control circuits stop supplying power to the load, so as to avoid the electric shock when a person touches the disconnected load.
Description
1. technical field
The utility model relates to a kind of socket, especially relates to a kind ofly can carrying out logic determines to the load of inserting, and determines whether the resistive load safe power supply socket of output voltage.
2. background technology
Existing general socket is divided into two big classes, direct insertion power supply base and iris type power supply base, and these two kinds of sockets are in electriferous state at the energized rear socket, get an electric shock easily, and load is under the open circuit situation still charged, may cause electric shock.
The purpose of this utility model is intended to overcome the shortcoming of prior art, and a kind of insertion socket loading condition of judging is provided, and determines whether the resistive load safe power supply socket of output voltage.
3. summary of the invention
The utility model purpose is to realize like this, a kind of resistive load safe power supply socket, comprise shell and array jack, center at every group of jack is drilled with aperture, it is characterized in that: be associated with control circuit between the jack of described socket and power supply, control circuit is made up of ac power circuit, identification circuit, executive circuit and reset circuit.
Described ac power circuit is by 220V AC power one termination bidirectional triode thyristor BG02 one end, the normally open contact K of relay K
1K, 02 series connection of resistance R 02, capacitor C, BG02 is in parallel with bidirectional triode thyristor, be connected to bidirectional triode thyristor BG02 trigger electrode by bidirectional diode BG04 between resistance R 02 and the capacitor C 02, the other end jointing holes M of bidirectional triode thyristor BG02, another termination fuse of jack M BX, meet bidirectional triode thyristor BG01 again, the bidirectional triode thyristor BG01 other end is at the other end that connects power supply by switch S 1, the normally open contact K of relay K
2K, 01 series connection of resistance R 01, capacitor C, BG01 is in parallel with bidirectional triode thyristor, is connected to bidirectional triode thyristor BG01 trigger electrode by bidirectional diode BG03 between resistance R 01 and the capacitor C 01;
Described identification circuit, the normally closed interlock K of relay k
1BOne terminating resistor R02, another termination sensitive switch S2, sensitive switch S2 connecting resistance R11, resistance R 12, resistance R 11 connects the 6th pin of integrated circuit N11, capacitor C 12 negativing ending groundings, the 6th pin of positive termination integrated circuit N11, resistance R 12 connects the 3rd pin of integrated circuit N11 and the 6th pin of integrated circuit N31 by switching diode D11, the 1st pin ground connection of integrated circuit N11, the 4th, 8 pin connect+the 6V power supply, and+6V power supply connects the 2nd pin of integrated circuit N11, capacitor C 11 negativing ending groundings by resistance R 13, the 2nd pin of positive termination integrated circuit N11, the 2nd pin of integrated circuit N11 connects the 3rd pin of integrated circuit N32 by switching diode D33;
Described executive circuit, the 3rd pin of integrated circuit N11 connects the base stage of triode BG21 by resistance R 20, and the emitter of triode BG21 connects+6V voltage, its collector connecting relay K, another termination triode of resistance R 21 1 terminations+6V voltage BG21 base stage;
Described reset circuit, the 4th of integrated circuit N32,5,7, serial connection ground connection, the 8th, 9,12,13 pin serial connection ground connection, the 14th pin connects+the 6V power supply, the 1st pin connects the 3rd pin of integrated circuit N31, integrated circuit N32 the 2nd pin connects integrated circuit N31 the 2nd pin, 4 of integrated circuit N31, the emitter that 8 pin are connected on triode BG31 connects+the 6V power supply again, integrated circuit N31 the 1st pin ground connection, the collector electrode of triode BG31 is by resistance R 32 ground connection, collector electrode connects the 2nd pin of integrated circuit N31, the base stage of triode BG31 connects capacitor C 31 capacitor C 31 negativing ending groundings, resistance R 31 1 end ground connection, the base stage of another termination triode BG31, the resistance R 01 and the capacitor C 01 of described power circuit connects the base stage of triode BG31 by diode D30.
On the aperture at described jack center sensitive switch S2 is installed.
The utlity model has following advantage: when inserting load, it is that resistive load also is non-resistive load that control circuit is judged, provide voltage to jack when being resistive load, when being non-resistive load as finger or taking iron wire to insert jack, then control circuit does not provide voltage to jack, has avoided the generation of electric shock accidents like this; When the resistive load disconnection of inserting jack, control circuit stops to power to the load, and has avoided the people to touch the generation of the load generation electric shock accidents of disconnection like this.
4. description of drawings
Fig. 1 is the schematic diagram of the utility model embodiment;
Fig. 2 is the circuit diagram of the utility model embodiment.
5. embodiment
As shown in Figure 1, a kind of resistive load safe power supply socket comprises shell and array jack, is drilled with aperture at the center of every group of jack, and sensitive switch S2 is installed on the aperture, is associated with control circuit between the jack of described socket and power supply; Control circuit is made up of ac power circuit, identification circuit, executive circuit and reset circuit.
Of the present utility model+6V voltage by, AC power is by small-sized grouping transformer transformation, rectification circuit rectification via diode D41～D44 (IN4007) composition, through electrochemical capacitor C40 (1000 μ F/16V) filtering, through 7806 voltage stabilizings, through electrochemical capacitor C41 (100 μ F/16V) filtering, provide+6V voltage again.
Described ac power circuit is by 220V AC power one termination bidirectional triode thyristor BG02 (TLC336A) end, the normally open contact K of relay K (DSZY-S-DC6V)
1K, the series connection of resistance R 02 (1.2K), capacitor C 02 (822P/160V), BG02 is in parallel with bidirectional triode thyristor, be connected to bidirectional triode thyristor BG02 trigger electrode by bidirectional diode D04 between resistance R 02 and the capacitor C 02, the other end jointing holes M of bidirectional triode thyristor BG02, another termination fuse of jack M BX, meet bidirectional triode thyristor BG01 (TLC336A) again, the bidirectional triode thyristor BG01 other end is at the other end that connects power supply by switch S 1, the normally open contact K of relay K
2K, the series connection of resistance R 01 (1.2K), capacitor C 01 (822P/160V), BG01 is in parallel with bidirectional triode thyristor, is connected to bidirectional triode thyristor BG01 trigger electrode by bidirectional diode D03 between resistance R 01 and the capacitor C 01;
Described identification circuit, the normally closed interlock K of relay k
1BOne terminating resistor R02, another termination sensitive switch S2, sensitive switch S2 connecting resistance R11 (30K), resistance R 12 (100K), resistance R 11 connects the 6th pin of integrated circuit N11 (NE555), electrochemical capacitor C12 (10 μ F) negativing ending grounding, the 6th pin of positive termination integrated circuit N11, resistance R 12 connects the 3rd pin of integrated circuit N11 and the 6th pin of integrated circuit N31 (NE555) by switching diode D11 (IN4148), the 1st pin ground connection of integrated circuit N11, the 4th, 8 pin connect+the 6V power supply, + 6V power supply connects the 2nd pin of integrated circuit N11 by resistance R 13 (30K), electrochemical capacitor C11 (10 μ F) negativing ending grounding, the 2nd pin of positive termination integrated circuit N11, the 2nd pin of integrated circuit N11 connects the 3rd pin of integrated circuit N32 by switching diode D33
Described executive circuit, the 3rd pin of integrated circuit N11 connects the base stage of triode BG21 (C9015) by resistance R 20 (3.3K), the emitter of triode BG21 connects+6V voltage, its collector connecting relay K, resistance R 21 (5.6K) one termination+another termination triode of 6V voltage BG21 base stage;
Described reset circuit, the 4th of integrated circuit N32 (CD4011), 5,7, serial connection ground connection, the 8th, 9,12,13 pin serial connection ground connection, the 14th pin connects+the 6V power supply, the 1st pin connects the 3rd pin of integrated circuit N31, integrated circuit N32 the 2nd pin connects integrated circuit N31 the 2nd pin, 4 of integrated circuit N31, the emitter that 8 pin are connected on triode BG31 (C9015) connects+the 6V power supply again, integrated circuit N31 the 1st pin ground connection, the collector electrode of triode BG31 connects (100K) by resistance R 32, collector electrode connects the 2nd pin of integrated circuit N31, the base stage of triode BG31 connects electrochemical capacitor C31 (22 μ F), electrochemical capacitor C31 negativing ending grounding, resistance R 31 1 end ground connection, the base stage of another termination triode BG31, the resistance R 01 and the capacitor C 01 of described power circuit connects the base stage of triode BG31 by diode D30 (IN4007).
Insert jack M as resistive load, and after pushing down the sensitive switch S2 at jack center ,+6V voltage is through the normally closed interlock K of jack M, load, bidirectional triode thyristor BG02, bidirectional diode BG04, resistance R 02, relay
1B, sensitive switch S2,11 pairs of capacitor C of resistance R 12 chargings, the 6th pin that charging finishes back integrated circuit N11 is that high level, the 3rd pin are low level, triode BG21 conducting, relay K work, normally open contact K
1K, K
2KClosure, bidirectional triode thyristor BG01, BG02 conducting, M is to electric, the normally closed interlock K of relay K
1BDisconnect, cut off getting in touch of ac power circuit and other circuit;
The trigger impulse that form on the capacitor C 01 this moment is through diode D30 rectification, form the base stage that certain direct voltage is added to triode BG31 after capacitor C 31 filtering, triode BG31 is transferred to by conducting and ending, integrated circuit N31 the 2nd pin transfers low level to by high level, the 3rd pin output high level, the 1st pin of integrated circuit N32 is a high level, and the 2nd pin is low level the 3rd a pin output high level, and M is to the stable power-supplying state that is in of load.
When resistive load disconnected, the trigger impulse of capacitor C 01 disappeared, and diode D30 ends, triode BG31 conducting, and integrated circuit N31 the 6th pin is that low level, the 2nd pin are high level, the 3rd pin high level.Integrated circuit N32 the 1st, 2 pin are high level, the 3rd pin output low level, and diode D33 conducting, integrated circuit N11 the 2nd pin preset low level, the 3rd pin output high level, triode BG21 ends, relay K outage, normally closed, the normally open contact K of relay K
1BK
1K, K
2B, K
2KReset, the bidirectional triode thyristor triggerless, jack M outage so just can avoid the people to contact the generation of the load electric shock accidents of disconnection.
After load is taken out from jack M, the trigger impulse that capacitor C 01 forms disappears, diode D30 ends, the base voltage of triode BG31 is by high step-down, triode BG31 becomes conducting by ending, integrated circuit N31 the 2nd pin is a high level, it is constant that the 3rd pin is kept high level, and the 1st, 2 pin of integrated circuit N32 are high level, the 3rd pin output low level, diode D33 conducting, the 2nd pin of integrated circuit N11 becomes low level by high level, the 3rd pin output high level, and BG21 ends, it is normally open contact K that relay K dead electricity, relay K reset
1K, K
2KDisconnect normally closed interlock K
1B, K
2BClosure, bidirectional triode thyristor BG01, BG02 triggerless are ended, and jack M loses voltage, and circuit is in holding state.
Insert jack M as non-resistive load, and after pushing down the sensitive switch S2 at jack center ,+6V voltage can't be through the normally closed interlock K of jack M, load, bidirectional triode thyristor BG02, bidirectional diode BG04, resistance R 02, relay
1B, sensitive switch S2,11 pairs of capacitor C of resistance R 12 chargings, then the 6th pin triggerless, the 3rd pin of integrated circuit N11 are high level, triode BG21 ends, relay K is not worked, normally open contact K
1K, K
2KStill disconnect, then bidirectional triode thyristor BG01, BG02 end, and jack M goes up no-voltage like this, can't provide alternating voltage to non-resistive load.
The utility model embodiment loaded current is 2.5A, change bearing capacity, and bidirectional triode thyristor BG01, the BG02 and the fuse BX that change relevant parameter get final product.
Because the control circuit of each jack in every group of jack is the same with the course of work, so the above control circuit and the course of work of just describing a jack.
Claims (3)
1. resistive load safe power supply socket, comprise shell and array jack, center at every group of jack is drilled with aperture, it is characterized in that: be associated with control circuit between the jack of described socket and the power supply, control circuit is made up of ac power circuit, identification circuit, executive circuit and reset circuit.
2. resistive load safe power supply socket as claimed in claim 1 is characterized in that: described ac power circuit, and by 220V AC power one termination bidirectional triode thyristor BG02 one end, the normally open contact K of relay K
1K, 02 series connection of resistance R 02, capacitor C, BG02 is in parallel with bidirectional triode thyristor, be connected to bidirectional triode thyristor BG02 trigger electrode by bidirectional diode BG04 between resistance R 02 and the capacitor C 02, the other end jointing holes M of bidirectional triode thyristor BG02, another termination fuse of jack M BX, meet bidirectional triode thyristor BG01 again, the bidirectional triode thyristor BG01 other end is at the other end that connects power supply by switch S 1, the normally open contact K of relay K
2K, 01 series connection of resistance R 01, capacitor C, BG01 is in parallel with bidirectional triode thyristor, is connected to bidirectional triode thyristor BG01 trigger electrode by bidirectional diode BG03 between resistance R 01 and the capacitor C 01;
Described identification circuit, the normally closed interlock K of relay k
1BOne terminating resistor R02, another termination sensitive switch S2, sensitive switch S2 connecting resistance R11, resistance R 12, resistance R 11 connects the 6th pin of integrated circuit N11, capacitor C 12 negativing ending groundings, the 6th pin of positive termination integrated circuit N11, resistance R 12 connects the 3rd pin of integrated circuit N11 and the 6th pin of integrated circuit N31 by switching diode D11, the 1st pin ground connection of integrated circuit N11, the 4th, 8 pin connect+the 6V power supply, and+6V power supply connects the 2nd pin of integrated circuit N11, capacitor C 11 negativing ending groundings by resistance R 13, the 2nd pin of positive termination integrated circuit N11, the 2nd pin of integrated circuit N11 connects the 3rd pin of integrated circuit N32 by switching diode D33;
Described executive circuit, the 3rd pin of integrated circuit N11 connects the base stage of triode BG21 by resistance R 20, and the emitter of triode BG21 connects+6V voltage, its collector connecting relay K, another termination triode of resistance R 21 1 terminations+6V voltage BG21 base stage;
Described reset circuit, the 4th of integrated circuit N32,5,7, serial connection ground connection, the 8th, 9,12,13 pin serial connection ground connection, the 14th pin connects+the 6V power supply, the 1st pin connects the 3rd pin of integrated circuit N31, integrated circuit N32 the 2nd pin connects integrated circuit N31 the 2nd pin, 4 of integrated circuit N31, the emitter that 8 pin are connected on triode BG31 connects+the 6V power supply again, integrated circuit N31 the 1st pin ground connection, the collector electrode of triode BG31 is by resistance R 32 ground connection, collector electrode connects the 2nd pin of integrated circuit N31, the base stage of triode BG31 connects capacitor C 31 capacitor C 31 negativing ending groundings, resistance R 31 1 end ground connection, the base stage of another termination triode BG31, the resistance R 01 and the capacitor C 01 of described power circuit connects the base stage of triode BG31 by diode D30.
3. resistive load safe power supply socket as claimed in claim 1 is characterized in that: on the aperture at described jack center sensitive switch S2 is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02222286 CN2534700Y (en) | 2002-04-18 | 2002-04-18 | Resistant load safety power supply socket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02222286 CN2534700Y (en) | 2002-04-18 | 2002-04-18 | Resistant load safety power supply socket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2534700Y true CN2534700Y (en) | 2003-02-05 |
Family
ID=33700233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02222286 Expired - Fee Related CN2534700Y (en) | 2002-04-18 | 2002-04-18 | Resistant load safety power supply socket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2534700Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035521A (en) * | 2010-12-21 | 2011-04-27 | 张献忠 | Switching control circuit |
| CN106785708A (en) * | 2016-12-28 | 2017-05-31 | 广东工业大学 | A kind of socket and its line management method |
| CN110780109A (en) * | 2019-11-13 | 2020-02-11 | 小熊电器股份有限公司 | Resistive load detection circuit and detection method |
-
2002
- 2002-04-18 CN CN 02222286 patent/CN2534700Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035521A (en) * | 2010-12-21 | 2011-04-27 | 张献忠 | Switching control circuit |
| CN102035521B (en) * | 2010-12-21 | 2012-12-26 | 张献忠 | Switching control circuit |
| CN106785708A (en) * | 2016-12-28 | 2017-05-31 | 广东工业大学 | A kind of socket and its line management method |
| CN106785708B (en) * | 2016-12-28 | 2019-03-29 | 广东工业大学 | A kind of socket and its line management method |
| CN110780109A (en) * | 2019-11-13 | 2020-02-11 | 小熊电器股份有限公司 | Resistive load detection circuit and detection method |
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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 |