CN104201543A - Power socket load insertion identification method - Google Patents
Power socket load insertion identification method Download PDFInfo
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- CN104201543A CN104201543A CN201410442640.8A CN201410442640A CN104201543A CN 104201543 A CN104201543 A CN 104201543A CN 201410442640 A CN201410442640 A CN 201410442640A CN 104201543 A CN104201543 A CN 104201543A
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- circuit
- supply socket
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Abstract
The invention provides a power socket load insertion identification method, and aims to solve the problem of low safety caused by 'normal electrification' of an existing socket for a railway. When a plug is inserted into a power jack, by the aid of the photoelectric blocking principle, change of electric potential outputted by elements is detected, output data are transmitted to a CPU (central processing unit) for analysis, the socket is electrified when load is not zero, load insertion and short circuit can be identified, and the method can be particularly used for the railway safety power socket. The socket is simple in structure, high in safety coefficient and 'normally electroless', and safety is greatly improved.
Description
Technical field
This patent belongs to power electronics control technology field, relates in particular to the recognition methods that supply socket load intelligence, safety gets involved.
Background technology
Supply socket be a kind of be commonly use provide the practical tool of AC power for electrical equipment.At present, traditional supply socket belongs to mechanical shell fragment form from structure, directly power supply.The feature of this socket maximum is all the time in " Chang You electricity " state.Exactly no matter whether use with need not, socket has electricity always.This " Chang You electricity " state is to exist certain defect and unsafe hidden danger in actual use.The one, this form often produces arc phenomenon (electric spark) in electrical equipment plug plug process.The 2nd, people's door especially child children is not intended to have a mind to touch the safe shrapnel touching in socket, very easily causes electric shock accidents.For addressing these problems, many manufacturers have installed " stopping " sheet additional and have prevented before socket, but just cure the symptoms, not the disease.Do not tackle the problem at its root.The 3rd, conventional socket is the form of directly powering, without any intelligentized embodiment.Various safeguard functions cannot be accomplished.
These problems above, have determined the application of conventional socket at some special occasions.
Railway is exactly major part.Because railway enterprise is a very special very important industry again.Traffic safety and passenger safety, device security is the basic of enterprise.Safety first is the aim of Shi Gai enterprise all the time.Special environment, special occasion, has determined the quality of product, the high security of product is primary.In the past, the car Room, railway division, was to be seldom equipped with supply socket in railway car, and wherein main cause is exactly that conventional socket fail safe can not be guaranteed.Now, along with the appearance of high ferro, require necessary supporting supply socket, but all done some basic protection, install enclosing cover additional., socket is still " Chang You electricity " and is not fundamentally solving safe problem.
Summary of the invention
In order to solve the low problem of fail safe causing with socket " often charged " on existing railway, the invention provides the supply socket of a kind of railway Special safety.
The recognition methods that a kind of supply socket load gets involved is: when supply hub inserts plug, adopt photoelectricity to stop principle, reach the variation of detecting element output potential and output data are sent to CPU and analyze, meet the method for socket energising of the non-vanishing condition of load simultaneously, reach the function of identification load insertion and short circuit identification.
The recognition methods that described a kind of supply socket load gets involved, load gets involved identification and can also adopt the approach such as digital circuit, changes of magnetic field, mechanical contact to reach the variation of detecting element output potential.
The recognition methods that the supply socket of a kind of railway Special safety adopts supply socket load of the present invention to get involved; its technical scheme is: alternating current connects relay by power circuit; the identification circuit of series load intervention simultaneously, max power constraint circuit, temperature protection circuit are connected to electrode, realize the function of " Chang Wu electricity ", temperature protection, overload protection, earth leakage protective, short-circuit protection.
The supply socket of a kind of railway Special safety, wherein: power circuit connects bridge rectifier parallel filtering electric capacity by transformer, by connecting voltage-stabiliser tube, composition complete machine working power circuit, provide+12v operating voltage.
Described railway Special safety supply socket, load gets involved identification circuit and is made up of photoelectric sensor and CPU, utilizes the insertion of plug make the variation of photoelectric sensor appropriate section current potential and data are sent to CPU, reaches the object that identification plug inserts.
Described railway Special safety supply socket, temperature control protection circuit is serially connected in transformer by temperature detect switch (TDS), and relay coil is connected serially to transformer secondary output coil, reaches the effect of temperature control protection.
Described railway Special safety supply socket, max power constraint circuit connects bridge rectifier parallel filtering electric capacity, voltage-stabiliser tube by current transformer, adjustable resistance composition max power constraint circuit in parallel, the exit of adjustable resistance connects CPU, in order to collect power data, and existing power is compared, reach the function of Power Limitation.
Described railway Special safety supply socket, is made up of upper cover, mesochite, circuit board, housing, and wherein, upper cover is fovea superior shell, and center arranges window, and printing opacity mouth is set at edge simultaneously; Mesochite center arranges raised platforms, and jack is set on platform, and its edge arranges circular hole; Shell fragment, transformer, inductance, relay and CPU are set on circuit board, and circuit board edge plate is put light-guiding pillar and terminal: housing is recessed shell and matches in upper cover; Mesochite is nested in upper cover inside, and the raised platforms on mesochite matches with the window of upper cover; Circuit board is placed on enclosure interior, and the terminal on circuit board matches with the terminal groove of housing, and the light-guiding pillar on circuit board matches with the printing opacity mouth above covering through the circular hole of mesochite, and the shell fragment on circuit board matches with the jack on mesochite.
The invention has the beneficial effects as follows: not only simple in structure, and also coefficient of safety is high, and socket, in " Chang Wu electricity " state, has improved fail safe greatly.
Brief description of the drawings
Fig. 1 is the structural representation of railway Special safety supply socket; Fig. 2 is the enlarged drawing of mesochite; Fig. 3 is the circuit theory diagrams of railway Special safety supply socket.
Wherein, 1. upper cover; 2. mesochite; 3. shell fragment; 4. light-guiding pillar; 5. housing; 6. protecting cover; 7. transformer; 8. inductance; 9.CPU; 10. terminal groove; 11. terminals; 12. windows; 13. raised platforms; 14. circular holes; 15. printing opacity mouths; 16. jacks; 17. circuit boards.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made to more explicit defining.
As shown in Fig. 1～2, the supply socket of railway Special safety, is made up of upper cover, mesochite, circuit board, housing, and wherein, upper cover 1 is fovea superior shell, and center arranges rectangular window 12, and printing opacity mouth 15 is set at edge simultaneously; Mesochite 2 centers arrange raised platforms 13, and jack 16 is set on it, and its edge arranges circular hole 14; Shell fragment 3, transformer 7, inductance 8, relay and CPU9 are set on circuit board 17, and circuit board 17 edge plates are put light-guiding pillar 4 and terminal 11; Housing 5 is recessed shell and matches in upper cover 1; Mesochite 2 is nested in upper cover 1 inside, and the raised platforms 13 on mesochite 2 matches with the window 12 of upper cover 1; Circuit board 17 is placed on housing 5 inside, terminal 11 on circuit board 17 matches with the terminal groove 10 of housing 5, light-guiding pillar 4 on circuit board 17 matches with the printing opacity mouth 15 on upper cover 1 through the circular hole 14 of mesochite 2, and the shell fragment 3 on circuit board 17 matches with the jack 16 on mesochite 2.
Described railway Special safety supply socket, light-guiding pillar 4 belows are LED.
Described railway Special safety supply socket, for ensureing safety, shell fragment 3 peripheries on circuit board 17 arrange protecting cover 6.
As shown in Figure 3, the supply socket of railway Special safety, on circuit board 17, comprise: power circuit, load get involved identification circuit, max power constraint circuit, temperature protection circuit, wherein: transformer B1 connects rectifier bridge stack Q1 parallel filtering capacitor C 1 and connects after voltage-stabiliser tube Wy1, composition complete machine working power circuit, it,, for provide+12v of relay operating voltage, is control circuit, the provide+5v such as protection circuit operating voltage.
Load gets involved identification circuit and is made up of photoelectric sensor and CPU, utilize the insertion of plug to make photoelectric sensor blocking type photoelectric coupling H1, H2, be arranged on respectively the position that two holes and Three-hole socket electrode are specified, utilize the insertion of plug to make the variation of H1, H2 appropriate section current potential, after the 3rd, the 4th pin receipt data of CPU9, whether identification is that plug inserts, and reaches the object of identification.
Temperature control protection circuit is serially connected in transformer B1 primary coil by temperature control sensor WK.At ordinary times, temperature is during lower than set point, and WK is closed road condition, alternating current by WK to the normal work of transformer B1 power supply.But when temperature exceedes after WK set point, WK inside becomes dialysis open-circuit condition from closed road, and disconnecting transformer B1 current supply circuit has also just cut off complete machine power supply circuits, and relay will discharge immediately, reach thereby cut off power supply output the function that temperature is protected.
Max power constraint circuit connects bridge rectifier Q2 parallel filtering capacitor C 2, voltage-stabiliser tube DW by current transformer B2, adjustable resistance RW composition max power constraint circuit in parallel, and the exit of adjustable resistance RW connects CPU9 the 5th pin.According to the requirement of setting maximum power, suitably select the resistance of RW.While making bearing power be less than set point, normal power supply.And be greater than after set point when bearing power, send command adapted thereto to function control circuit, cut off the output of socket power through identification.
Described railway Special safety supply socket, shell fragment 3 is copper.
Described railway Special safety supply socket, upper cover 1, mesochite 2, housing 5 materials are flame retardant plastics.
The course of work of railway Special safety supply socket: complete machine power circuit for provide+12v of whole circuit and+5v working power.In order to identify conveniently, photoelectric sensor H1, H2 are arranged on respectively in the N (zero line) in two pore electrods.E (ground wire) in three holes is upper, utilizes the insertion of plug, stops its photoelectric emission RX path, reaches identifying purpose.When plug does not insert jack, the output of H1 (H2) is low level, CPU9 does not give instruction through identification, relay is failure to actuate, after plug inserts, H1 (H2) exports from low transition to high level, CPU9 the 3rd pin or the identification of 4 pin, send command adapted thereto, can carry out powered operation.If another identification also reaches requirement, CPU9 just assigns action command, relay adhesive, and socket starts power supply.And another identification sensing instruction is exactly whether socket electrode has " short circuit " phenomenon.Be exactly whether to have child with the thing palpates such as iron wire, electrode or short circuit electrode.CPU9 is not assign instruction through identification.Only have outside line electrode load normal, and plug is inserted in socket, photoelectric sensing is normal, just can assign action power supply instruction.Like this, fail safe just has basic assurance.
In power supply process, if, when bearing power (load current) process set point, in power limit circuit, the current potential of RW makes the 5th pin of CPU receive instruction, assigns rapidly the action of stopping power supply, and relay discharges immediately, cut off power supply output, complete the object of Power Limitation.
In power supply process, if socket internal temperature rises, while reaching the rated value of WK, the inner transformer B1 current supply circuit that disconnects of WK, the whole socket lose+12V of voltage relay that loses the job discharges.Meanwhile, lose+5V of the 1 pin control circuit of CPU is lost the job voltage and is stopped controlling, and reaches the function of temperature protection.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendments or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (8)
1. the recognition methods that supply socket load gets involved, it is characterized in that: when supply hub inserts plug, adopt photoelectricity to stop principle, reach the variation of detecting element output potential and output data are sent to CPU and analyze, meet the method for socket energising of the non-vanishing condition of load simultaneously, reach the function of identification load insertion and short circuit identification.
2. the recognition methods that a kind of supply socket load according to claim 1 gets involved, it is characterized in that: load gets involved identification and can also adopt the approach such as digital circuit, changes of magnetic field, mechanical contact to reach the variation of detecting element output potential, gets involved identification thereby realize.
3. railway Special safety supply socket adopts the recognition methods that supply socket load claimed in claim 1 gets involved; it is characterized in that: alternating current connects relay by power circuit; the identification circuit of series load intervention simultaneously, max power constraint circuit, temperature protection circuit are connected to electrode, realize the function of " Chang Wu electricity ", temperature protection, overload protection, earth leakage protective, short-circuit protection.
4. a kind of railway Special safety according to claim 3 supply socket, is characterized in that: power circuit connects bridge rectifier parallel filtering electric capacity by transformer, by connecting voltage-stabiliser tube, and composition complete machine working power circuit, provide+12v operating voltage.
5. a kind of railway Special safety according to claim 3 supply socket, it is characterized in that: load gets involved identification circuit and is made up of photoelectric sensor and CPU, utilize the insertion of plug make the variation of photoelectric sensor appropriate section current potential and data are sent to CPU, reach the object that identification plug inserts.
6. a kind of railway Special safety according to claim 3 supply socket, is characterized in that: temperature control protection circuit is serially connected in transformer by temperature detect switch (TDS), and relay coil is connected serially to transformer secondary output coil, reaches the effect of temperature control protection.
7. a kind of railway Special safety according to claim 3 supply socket, it is characterized in that: max power constraint circuit connects bridge rectifier parallel filtering electric capacity, voltage-stabiliser tube by current transformer, adjustable resistance composition max power constraint circuit in parallel, the exit of adjustable resistance connects CPU, in order to collect power data, and existing power is compared, reach the function of Power Limitation.
8. a kind of railway Special safety according to claim 3 supply socket, is made up of upper cover, mesochite, circuit board, housing, it is characterized in that: upper cover is fovea superior shell, and center arranges window, and printing opacity mouth is set at edge simultaneously; Mesochite center arranges raised platforms, and jack is set on platform, and its edge arranges circular hole; Shell fragment, transformer, inductance, relay and CPU are set on circuit board, and circuit board edge plate is put light-guiding pillar and terminal; Housing is recessed shell and matches in upper cover; Mesochite is nested in upper cover inside, and the raised platforms on mesochite matches with the window of upper cover; Circuit board is placed on enclosure interior, and the terminal on circuit board matches with the terminal groove of housing, and the light-guiding pillar on circuit board matches with the printing opacity mouth above covering through the circular hole of mesochite, and the shell fragment on circuit board matches with the jack on mesochite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410442640.8A CN104201543A (en) | 2014-08-26 | 2014-08-26 | Power socket load insertion identification method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410442640.8A CN104201543A (en) | 2014-08-26 | 2014-08-26 | Power socket load insertion identification method |
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| Publication Number | Publication Date |
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| CN104201543A true CN104201543A (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410442640.8A Pending CN104201543A (en) | 2014-08-26 | 2014-08-26 | Power socket load insertion identification method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021134958A1 (en) * | 2019-12-30 | 2021-07-08 | 深圳市东迪欣科技有限公司 | Electrode apparatus of radiofrequency therapeutic instrument |
Citations (6)
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|---|---|---|---|---|
| CN2691105Y (en) * | 2004-03-08 | 2005-04-06 | 扬州金鼎电子有限公司 | Intelligent energy saving power socket special for computer |
| CN102377049A (en) * | 2010-08-19 | 2012-03-14 | 上海电器科学研究院 | Wall-mounted high-current socket |
| CN202872119U (en) * | 2012-11-07 | 2013-04-10 | 珠海市竞争电子科技有限公司 | Air-conditioner converter |
| CN103515802A (en) * | 2013-09-09 | 2014-01-15 | 深圳市智远能科技有限公司 | Intelligentized switch socket and intelligent switch power strip |
| CN203423331U (en) * | 2013-04-09 | 2014-02-05 | 郭胜利 | Multifunctional intelligent safety power supply socket without standby loss |
| US8749093B2 (en) * | 2010-06-09 | 2014-06-10 | Powertech Industrial Co., Ltd. | Electric receptacle module |
-
2014
- 2014-08-26 CN CN201410442640.8A patent/CN104201543A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2691105Y (en) * | 2004-03-08 | 2005-04-06 | 扬州金鼎电子有限公司 | Intelligent energy saving power socket special for computer |
| US8749093B2 (en) * | 2010-06-09 | 2014-06-10 | Powertech Industrial Co., Ltd. | Electric receptacle module |
| CN102377049A (en) * | 2010-08-19 | 2012-03-14 | 上海电器科学研究院 | Wall-mounted high-current socket |
| CN202872119U (en) * | 2012-11-07 | 2013-04-10 | 珠海市竞争电子科技有限公司 | Air-conditioner converter |
| CN203423331U (en) * | 2013-04-09 | 2014-02-05 | 郭胜利 | Multifunctional intelligent safety power supply socket without standby loss |
| CN103515802A (en) * | 2013-09-09 | 2014-01-15 | 深圳市智远能科技有限公司 | Intelligentized switch socket and intelligent switch power strip |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021134958A1 (en) * | 2019-12-30 | 2021-07-08 | 深圳市东迪欣科技有限公司 | Electrode apparatus of radiofrequency therapeutic instrument |
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Application publication date: 20141210 |