CN103633670A - Charging system with antitheft detection - Google Patents
Charging system with antitheft detection Download PDFInfo
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- CN103633670A CN103633670A CN201210295870.7A CN201210295870A CN103633670A CN 103633670 A CN103633670 A CN 103633670A CN 201210295870 A CN201210295870 A CN 201210295870A CN 103633670 A CN103633670 A CN 103633670A
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Abstract
The invention discloses a charging system with antitheft detection, and the charging system is constructed for charging a rechargeable battery of an electric vehicle. The charging system comprises a power supply device which is constructed for outputting charging electric energy; an output end component which is electrically connected with the power supply device and constructed for being detachably plugged inside the electric vehicle to receive and transmit charging electric energy to the rechargeable battery; and an antitheft detection device which comprises a response unit and a detection unit. The response unit is arranged inside the output end component and used for outputting a response signal. The detection unit is arranged inside the power supply device and connected with the signal of the response unit and constructed for detecting the response signal. The response signal correspondingly changes when the output end component and the power supply device are separated so that the detection unit is informed that the output end component and the power supply device are disconnected according to the response signal.
Description
Technical field
The present invention is about a kind of charging system, and espespecially a kind of being used for charged to charging vehicle, and can detect the whether stolen charging system of cap assembly.
Background technology
The invention of fuel oil type automobile has improved convenience in human action and the problem of goods handling really, and along with the progress of manufacturing technology, fuel oil type automobile is produced in a large number, now one of oneself instrument indispensable in becoming human lives of fuel oil type automobile.World's fuel oil type automobile sum is approximately 8.5 hundred million at present, and the oil consumption in the whole world 57% is field of traffic (wherein the U.S. reaches 67%), expect the year two thousand twenty fuel oil type automobile and will reach 1,200,000,000, to there is clean breach between supplying with in global demand of petroleum and conventional oil, petroleum-based energy imbalance between supply and demand highlights day by day.Estimate that the insufficiency of supply-demand of the year two thousand fifty is almost equivalent to the twice of world oil total output in 2000, oil price can rapidly go up, and causes automobile use cost more and more higher.Therefore ，Ge state, all at positive encourage growth new-energy automobile, to restructure the use of energy, reduces the dependence to oil.
In addition, during the running of fuel oil type automobile, can burns gasoline cause air pollution, make whole biological environment cause destruction, in order to improve the destruction of vehicle to environment, each car trader endeavours to research and develop oligosaprobic automobile, to protect our environment in recent years.In various new-energy automobiles, the technical background of electric automobile is relatively ripe, and electrical network has been routed to all parts of the world, can obtain very easily stable electric energy, so electric motor car is an important directions of new-energy automobile development.
Electric motor car is used rechargeable battery as a stable energy source, the rechargeable electrical energy that this rechargeable battery can utilize charging system to provide charges, so that electric motor car required electric energy of when operation to be provided, the cap assembly that wherein charging system comprises charging station and consists of cable set and charging gun, charging station framework is applicable in received input electric energy is converted to the rechargeable electrical energy that rechargeable battery uses, cable set is electrically connected between charging station and charging gun, framework is sent to charging gun in the rechargeable electrical energy that charging station is exported, charging gun is plugged on the cradle of electric motor car separably for user, make by this rechargeable electrical energy that charging station exports via cable set and charging gun and offer rechargeable battery to charge.
Day by day universal due to electric motor car, well imagine, certainly will more charging system need be set in various places, the operation so that the rechargeable battery of electric motor car can immediately charge, yet expensive due to charging gun and cable set, be exposed to again outside charging system, therefore in the situation that current charging system there is no any antitheft mechanism, real very easily trick surreptitiously causes paying more money cost, if and will prevent stolen, also only can make great efforts to reach by the mode setting a watch on, thus, also need to pay a large amount of manpowers and money cost.
Therefore, how to develop a kind of charging system that improves the antitheft detection of tool of above-mentioned prior art disappearance, real is the current problem in the urgent need to address of correlative technology field person.
Summary of the invention
Main purpose of the present invention is to provide the charging system of the antitheft detection of a kind of tool, it by arranging the simple and reliable Anti-theft detection device of circuit in charging system, whether charging gun and cable set with detection charging system be stolen, to solve existing charging system, there is no any antitheft mechanism, cause paying a large amount of manpowers and money and become originally in response to charging gun and the disappearance such as cable set is stolen or antitheft.
For reaching above-mentioned purpose, preferred embodiments of the present invention is for providing the charging system of the antitheft detection of a kind of tool, and framework charges in the rechargeable battery to electric motor car, comprises: electric supply installation, and framework is in output rechargeable electrical energy; Cap assembly, is electrically connected to electric supply installation, and framework is in being plugged in separably in electric motor car, to receive and to transmit rechargeable electrical energy to rechargeable battery; And Anti-theft detection device, comprise: response unit, be arranged in cap assembly, and output response signal; And detecting unit, being arranged in electric supply installation, and being connected with response unit signal, framework is in detecting response signal; Wherein response signal corresponding variation when separated between cap assembly and electric supply installation, makes detecting unit learn between cap assembly and electric supply installation and disconnect according to response signal.
Accompanying drawing explanation
Fig. 1: the block schematic diagram of the charging system of its antitheft detection of tool that is preferred embodiment of the present invention.
Fig. 2: the particular circuit configurations schematic diagram of the first preferred embodiment of the Anti-theft detection device shown in its Fig. 1.
Fig. 3: the particular circuit configurations schematic diagram of the second preferred embodiment of the Anti-theft detection device shown in its Fig. 1.
Fig. 4: the particular circuit configurations schematic diagram of the 3rd preferred embodiment of the Anti-theft detection device shown in its Fig. 1.
Fig. 5: the particular circuit configurations schematic diagram of the 4th preferred embodiment of the Anti-theft detection device shown in its Fig. 1.
Wherein, description of reference numerals is as follows:
1: charging system;
10: Anti-theft detection device;
100: detecting unit;
101: response unit;
102,400,500: control unit;
103: impedance detection unit;
104: switching circuit;
105: protective circuit;
11: charging station;
12: cap assembly;
120: cable set;
121: charging gun;
122: electromagnetic valve switch;
401: reading unit;
402: the first wireless radio frequency modules;
403: communication interface;
404: receiver;
405: the second wireless radio frequency modules;
402a: transmitting terminal;
501: the first bluetooth modules;
502: third antenna;
503: the first filters;
504: the first output balanced to unbalanced transformers;
505: the first Bluetooth control wafers;
506: the first storing memories;
507: the first clock pulse generators;
511: the second bluetooth modules;
512: the four antennas;
513: the second filters;
514: the second output balanced to unbalanced transformers;
515: the second Bluetooth control wafers;
516: the second storing memories;
517: the second clock pulse generators;
R1: the first resistance;
R2: the second resistance;
R3: the 3rd resistance;
R4: the 4th resistance;
R5: the 5th resistance;
R6: the 6th resistance;
R7: the 7th resistance;
ZD: Zener diode;
D1: the first diode;
D2: the second diode;
Vt1: the first detection signal;
Vt2: the second detection signal;
Vt3: the 3rd detection signal;
Vc: control signal;
Vo: driving voltage;
Vs: standby voltage;
G: earth terminal;
Q1:NPN bipolar transistor;
Q2:PNP bipolar transistor;
A: the first contact;
B: the second contact;
C: the 3rd contact;
D: the 4th contact;
L1: the first antenna;
L2: the second antenna.
Embodiment
Some exemplary embodiments that embody feature & benefits of the present invention will describe in detail in the explanation of back segment.Be understood that the present invention can have various variations in different modes, its neither departing from the scope of the present invention, and explanation wherein and be shown in the use that ought explain in essence, but not framework is in restriction the present invention.
Refer to Fig. 1, the block schematic diagram of the charging system of its antitheft detection of tool that is preferred embodiment of the present invention.As shown in Figure 1, charging system 1 framework of the present embodiment charges in the rechargeable battery in electric motor car (not shown), and so that electric motor car required electric energy of when operation to be provided, charging system 1 comprises Anti-theft detection device 10, electric supply installation and cap assembly 12.Electric supply installation, for example charging station 11, and framework is in by received input electric energy, and the AC energy for example being provided by Utilities Electric Co. converts to and is applicable to direct current that rechargeable battery uses or the rechargeable electrical energy of interchange.12 of cap assemblies are electrically connected to charging station 11, and comprise cable set 120 and charging gun 121, wherein cable set 120 is electrically connected between charging station 11 and charging gun 121, and formed by least one cable, framework is sent to charging gun 121 in the rechargeable electrical energy that charging station 11 is exported, as for 121 frameworks of charging gun, in being plugged in separably on the cradle of electric motor car, with the rechargeable electrical energy that cable set 120 is transmitted, provide to rechargeable battery, and then rechargeable battery is charged.
Below may execution mode by further illustrating the various of Anti-theft detection device of the present invention.Refer to Fig. 2, and coordinate Fig. 1, wherein Fig. 2 is the particular circuit configurations schematic diagram of the first preferred embodiment of the Anti-theft detection device shown in Fig. 1.As shown in Figure 2, in the present embodiment, Anti-theft detection device 10 with the mode of contact measurement detect cap assembly 12 whether with charging station 11 between separated, judge whether cap assembly 12 stolen situation occurs, wherein response unit 101 can be but is not limited to and consisted of interior the first the had resistance R 1 of charging gun 121, and the impedance that the first resistance R 1 in fact more can be had by the electromagnetic valve switch 122 in charging gun 121 is formed, when charging gun 121 is plugged in the cradle of electric motor car and wish when the rechargeable battery in electric motor car is charged, this electromagnetic valve switch 122 can be energized and be excitatory, therefore the muzzle of charging gun 121 and cradle can be pinned, to prevent that charging gun 121 from getting loose from cradle, wherein this first resistance R 1 can be for example 50 ohm.
Detecting unit 100 comprises a control unit 102 and an impedance detection unit 103, wherein impedance detection unit 103 is electrically connected to control unit 102, and the output of impedance detection unit 103 is electrically connected to the first resistance R 1 by the cable of cable set 120, impedance detection unit 103 operates by the control of control unit 102, and can export respectively the first detection signal Vt1 and the second detection signal Vt2 to control unit 102, wherein, the first detection signal Vt1 framework is in when charging system 1 and charging gun 121 are during in operating mode, whether the impedance of reacting the first resistance R 1 changes, the second detection signal Vt2 framework in when charging system 1 and charging gun 121 are during in standby mode, whether the impedance of reacting the first resistance R 1 changes.
In above-described embodiment, impedance detection unit 103 comprises a switching circuit 104, one protective circuit 105, one second resistance R 2, one Zener diode ZD and one the 3rd resistance R 3, wherein the control end of switching circuit 104 is electrically connected to and reception control signal Vc with control unit 102, the input conduction terminals of switching circuit 104 receives driving voltage Vo, this driving voltage Vo framework is in driving electromagnetic valve switch 122, and can be but be not limited to 12V, the output conduction terminals of switching circuit 104 is electrically connected to one end of the first resistance R 1 of this electromagnetic valve switch 122, the control signal Vc that switching circuit 104 provides according to control unit 102 carries out the switching of conducting or cut-off, by this when switching circuit 104 conducting, the electric energy of driving voltage Vo just can be sent to electromagnetic valve switch 122 and the first resistance R 1 via switching circuit 104, to order about electromagnetic valve switch 122, come into operation, in addition, switching circuit 104 is more electrically connected to earth terminal G.
In some embodiment, as shown in Figure 2, switching circuit 104 can be but is not limited to and consisted of NPN bipolar transistor Q1 and PNP bipolar transistor Q2, wherein the base stage of NPN bipolar transistor Q1 is electrically connected to and reception control signal Vc with control unit 102, the collector of NPN bipolar transistor Q1 is electrically connected to the base stage of PNP bipolar transistor Q2, the emitter-base bandgap grading of NPN bipolar transistor Q1 is electrically connected to earth terminal G, the emitter-base bandgap grading of PNP bipolar transistor Q2 receives driving voltage Vo, the collector of PNP bipolar transistor Q2 is electrically connected to one end of the first resistance R 1, as from the foregoing, the base stage of NPN bipolar transistor Q1 is actually the control end of switching circuit 104, the emitter-base bandgap grading of PNP bipolar transistor Q2 is the input conduction terminals of switching circuit 104, the collector of PNP bipolar transistor Q2 is the output conduction terminals of switching circuit 104, and switching circuit 104 is electrically connected to earth terminal G by the emitter-base bandgap grading of NPN bipolar transistor Q1.
The input of protective circuit 105 receives standby voltage Vs, this standby voltage Vs is for continuing the voltage of output, framework is in when charging system 1 is during in standby mode, electronic component in charging system 1 required electric energy when standby is provided, and can be but be not limited to 3.3V, the output of protective circuit 105 is electrically connected to one end of the first resistance R 1, protective circuit 105 frameworks are in export standby voltage Vs by output, and can prevent that backward current from being flowed into by the output of protective circuit 105, and when there is for example short circuit in cap assembly 12, protection standby voltage Vs is not subject to the impact of short circuit.In this embodiment; protective circuit 105 can be consisted of the first diode D1 and the 4th resistance R 4; wherein the anode tap of the first diode D1 receives standby voltage Vs; the cathode terminal of the first diode D1 is electrically connected to one end of the 4th resistance R 4; the first diode D1 can prevent that backward current from being flowed into by the output of protective circuit 105; the other end of the 4th resistance R 4 is electrically connected to the first contact A; the 4th resistance R 4 can be when there is for example short circuit in cap assembly 12, and protection standby voltage Vs is not subject to the impact of short circuit.In above-described embodiment, the 4th resistance R 4 is 1K ohm for example.In some embodiment, the 4th resistance R 4 also can be omitted (not shown) again.
The output conduction terminals of one end of the second resistance R 2 and protective circuit 105, switching circuit 104 and one end of the first resistance R 1 are electrically connected on the first contact A; the other end of the second resistance R 2 is electrically connected on the second contact B with cathode terminal and the control unit 102 of Zener diode ZD; in fact the second resistance R 2 forms a current-limiting resistance; to prevent from receiving too large electric current after Zener diode ZD collapse conducting, burn out, and can be for example 10K ohm.One end of the other end of the anode tap of Zener diode ZD and the first resistance R 1, the 3rd resistance R 3 and control unit 102 are electrically connected on the 3rd contact C, the other end of the 3rd resistance R 3 is electrically connected to earth terminal G, Zener diode ZD framework is in pressure limiting, and the upper first detection signal Vt1 that produces of the 3rd contact C produces the second detection signal Vt2 to control unit 102 to control unit 102, the second contact B.
Below by the function mode of the Anti-theft detection device 10 shown in key diagram 2.Referring again to Fig. 2, when charging system 1 is in operating mode and charging gun 121 wishs when the rechargeable battery of electric motor car is charged, now, control unit 102 is the control end to switching circuit 104 by the control signal Vc of output HIGH voltage level, with 104 conductings of control switch circuit, therefore the electric energy of driving voltage Vo just can be sent to via switching circuit 104 electromagnetic valve switch 122 of charging gun 121, make electromagnetic valve switch 122 energization excitations, pinning the muzzle of charging gun 121 follows the cradle of electric motor car to prevent that charging gun 121 rifles from getting loose, now, Zener diode ZD is also because driving voltage Vo presents collapse conducting, therefore the voltage level of the first detection signal Vt1 on the 3rd contact C is by the dividing potential drop through the first resistance R 1 and the 3rd resistance R 3 corresponding to driving voltage Vo, and corresponding to driving voltage Vo in the second resistance R 2, the pressure drop producing between Zener diode ZD and the 3rd resistance R 3, so due to the second resistance R 2 for relative the first resistance R 1 of high impedance and the 3rd resistance R 3 large, therefore in fact the voltage level of the first detection signal Vt1 only can be considered and is maintained within the scope of the first normal voltage through the dividing potential drop of the first resistance R 1 and the 3rd resistance R 3 corresponding to driving voltage Vo, about 0.24V for example.
Once there be burglar to cut off cap assembly 12 at charging system 1 and charging gun 121 in operating mode, for example cut off charging gun 121 or cable set 120, now, the first resistance R 1 forms open-circuit condition for impedance detection unit 103, that is the impedance of the first resistance R 1 becomes infinity, thus, the voltage level of the first detection signal Vt1 on the 3rd contact C will be only corresponding to driving voltage Vo in the second resistance R 2, the pressure drop producing between Zener diode ZD and the 3rd resistance R 3, and because the second resistance R 2 is high impedance, therefore the magnitude of voltage of the first detection signal Vt1 in fact for example approximates zero, hence one can see that, the first detection signal Vt1 now there is no method and is maintained within the scope of the first normal voltage, therefore control unit 102 just can detect the voltage level of the first detection signal Vt1 change and judge cap assembly 12 at present with charging station 11 between separated, that is there is stolen situation in cap assembly 12, and then correspondence is sent alarm signal.
In addition, when charging system 1 and charging gun 121 are during all in standby mode, the control signal Vc of control unit 102 output LOW voltage level is to the control end of switching circuit 104, make switching circuit 104 cut-offs, now, electric energy on the first contact A will transmit resulting via protective circuit 105 by standby voltage Vs, and because the level of standby voltage Vs is less, therefore the electric energy on the first contact A now also cannot order about Zener diode ZD collapse conducting, therefore the voltage of the first contact A will be by standby voltage Vs via the 4th resistance R 4, dividing potential drop between the first resistance R 1 and the 3rd resistance R 3 forms, therefore the magnitude of voltage of the first contact A is 0.14V approximately for example, and then the voltage on corresponding the first contact A of the voltage level that makes the second detection signal Vt2 on the second contact B and maintaining within the scope of the second normal voltage, for example approximate 0.14V.
Once there be burglar to cut off cap assembly 12 at charging system 1 and charging gun 121 in standby mode, for example cut off charging gun 121 or cable set 120, now, the first resistance R 1 forms open-circuit condition for impedance detection unit 103, that is the impedance of the first resistance R 1 becomes infinity, thus, due to Zener diode, ZD does not collapse, therefore no current flows into the second resistance R 2 by the first contact A, therefore the second detection signal Vt2 on the second contact B is by identical with the voltage on the first contact A, for example equal the conducting voltage that standby voltage Vs cuts the first diode D1, therefore the second detection signal Vt2 will equal for example below 3V, therefore, in fact the level of the second detection signal Vt2 changes, therefore control unit 102 just can detect the voltage level of the second detection signal Vt2 change and judge cap assembly 12 at present with charging station 11 between separated, that is there is stolen situation in cap assembly 12, and then correspondence is sent alarm signal.
In some embodiment, when charging system 1 and charging gun 121 are during all in standby mode, if the voltage of standby voltage Vs relatively 3.3V is large, for example, more than 5V, and can order about Zener diode ZD conducting time, if burglar cuts off cap assembly 12 at charging system 1 and charging gun 121 in standby mode, the second detection signal Vt2 on the second contact B cannot be maintained at this second normal voltage scope and change into the breakdown voltage that equals Zener diode ZD, 3V for example, therefore the voltage level of the second detection signal Vt2 in fact still changes and can controlled unit 102 detect.
As from the foregoing, Anti-theft detection device 10 shown in Fig. 2 adopts the first resistance R 1 of the electromagnetic valve switch 122 in charging gun 121 to form response unit 101, in the mode by contact measurement, detect the first resistance R 1 corresponding impedance variation resulting from impedance detection unit 103 when whether separated between cap assembly 12 and charging station 11, judge that by this whether cap assembly 12 is stolen, therefore the impedance variation that the first resistance R 1 results from impedance detection unit 103 has just formed a kind of response signal that 101 of response units can provide, this response signal can produce corresponding variation when cap assembly 12 is stolen, be with detecting unit 100 can judge according to the variation of this response signal cap assembly 12 whether with charging station 11 between separated, to confirm whether cap assembly 12 stolen situation occurs.
Referring again to Fig. 2, in some embodiment, in switching circuit 104, more can there is one the 5th resistance R 5 and one the 6th resistance R 6, wherein the 5th resistance R 5 is electrically connected between the base stage and control unit 102 of NPN bipolar transistor Q1, and the 6th resistance R 6 is electrically connected between the collector of NPN bipolar transistor Q1 and the base stage of PNP bipolar transistor Q2.In addition, impedance detection unit 103 more can have the second diode D2, the anode tap of this second diode D2 is electrically connected to the other end of earth terminal G and the 3rd resistance R 3, and one end of the output conduction terminals of the cathode terminal switching circuit 104 of the second diode D2, one end of the second resistance R 2 and this first resistance R 1 is electrically connected to.
Certainly, the first above-mentioned resistance R 1 is not limited to the impedance that need be had by the electromagnetic valve switch 122 in charging gun 121 as shown in Figure 2 and is formed, in other embodiment, as shown in Figure 3, the limited resistance that the first resistance R 1 also can change by the thermistor in charging gun 121, temperature switch or extra setting is formed, and resistance value can be for example in 1K ~ 10K ohm.In addition, corresponding the first resistance R 1 changes by the thermistor in charging gun 121, the limited resistance of temperature switch or extra setting forms, impedance detection unit 103 shown in Fig. 3 is compared to the impedance detection unit 103 shown in Fig. 2, also can change by only comprising the 7th resistance R 7, wherein one end of the 7th resistance R 7 receives standby voltage Vs, this standby voltage Vs is for continuing the voltage of output, and framework is in when charging system 1 is during in standby mode, electronic component in charging system 1 required electric energy when standby is provided, the other end of the 7th resistance R 7 is connected in the 4th contact D by the cable of cable set 120 and one end of the first resistance R 1, this seven resistance R 7 can be for example 10K ohm, what is more, control unit 102 shown in Fig. 3 is compared to the control unit 102 shown in Fig. 2, change to the 4th contact D and be electrically connected to, whether the impedance that detects the first resistance R 1 in the 3rd detection signal Vt3 by the 4th contact D with framework changes, and then judgement charging cap assembly 12 whether with charging station 11 between separated, to confirm whether cap assembly 12 has stolen situation to occur.
Known as shown in Figure 3, because the impedance that not the first resistance R 1 is as shown in Figure 2 had by electromagnetic valve switch 122 of first resistance R 1 of the present embodiment is formed, therefore its impedance detection unit 103 can be without having for driving the interlock circuit of electromagnetic valve switch 122, therefore in fact the internal circuit of the impedance detection unit 103 shown in Fig. 3 has omitted switching circuit 104 circuit such as grade shown in Fig. 2, make more simple cheap of electric structure, in addition, when cap assembly 12 is connected in charging station 11, no matter charging system 1 is in operating mode or standby mode for the 3rd detection signal Vt3 on the 4th contact D, all can via the dividing potential drop result of the 7th resistance R 7 and the first resistance R 1, be maintained within the scope of the 3rd normal voltage by corresponding standby voltage Vs, once there be burglar to cut off cap assembly 12 at charging system 1 and charging gun 121 in operating mode or standby mode, for example cut off charging gun 121 or cable set 120, now, the first resistance R 1 forms open-circuit condition for impedance detection unit 103, that is the impedance of the first resistance R 1 becomes infinity, thus, the voltage level of the 3rd detection signal Vt3 on the 4th contact D will because the first resistance R 1 produces, impedance variation is corresponding to be changed, and be changed to the voltage level that equals standby voltage VS, therefore in fact the 3rd detection signal Vt3 cannot be maintained within the scope of the 3rd normal voltage, therefore control unit 102 just can detect the voltage level of the 3rd detection signal Vt3 change and judge cap assembly 12 at present with charging station 11 between separated, that is there is stolen situation in cap assembly 12, to send alarm signal.
Refer to Fig. 4, and coordinate Fig. 1, wherein Fig. 4 is the particular circuit configurations schematic diagram of the 3rd preferred embodiment of the Anti-theft detection device shown in Fig. 1.As shown in Figure 4, in the present embodiment, the mode that Anti-theft detection device 10 detects with the wireless type of radio frequency identification (RFID) detect cap assembly 12 whether with charging station 11 between separated, judge whether cap assembly 12 has stolen situation to occur, the detecting unit 100 that is wherein arranged at the Anti-theft detection device 10 in charging station 11 comprises control unit 400 and reading unit (reader) 401, reading unit 401 comprises the first wireless radio frequency modules 402 and the first antenna L1, the first antenna L-1 is electrically connected to earth terminal G, the first 402 of wireless radio frequency modules are electrically connected to the first antenna L1 by inner transmitting terminal 402a, and the first wireless radio frequency modules 402 drives the first antenna L1 to send a radiofrequency signal via transmitting terminal 402a, 400 of control units are connected with reading unit 401 by communication interface 403, and communicate with the first wireless radio frequency modules 402 by this communication interface 403.
101 of response units that are arranged at charging gun 121 can be by a receiver 404, for example label (tag) forms, and there is the second wireless radio frequency modules 405 and one second antenna L2, wherein the second antenna L2 is electrically connected to the second wireless radio frequency modules 405 and earth terminal G, and when the distance between the second antenna L2 and the first antenna L1 is in the first safe distance, mode that can electromagnetism between the second antenna L2 and the first antenna L1 is coupled, as for 405 of the second wireless radio frequency modules, can when receiving electric energy, start, and then send an information signal, and the mode with wireless carrier spreads out of via the second antenna L2 by this information signal.
Below by the flowing mode of doing of the Anti-theft detection device 10 shown in key diagram 4.As shown in Figure 4, first, reading unit 401 can drive the transmitting terminal 402a of the first wireless radio frequency modules 402 via the first antenna L-1, to send the radiofrequency signal with fixed frequency constantly or periodically, when not yet separated between cap assembly 12 and charging station 11, and distance between the second antenna L2 of receiver 404 and the first antenna L1 of reading unit 401 is in the first safe distance time, the second antenna L2 just can have electromagnetic coupling effect because of the radiofrequency signal of the first antenna L1, and then generation induced current to the second wireless radio frequency modules 405, therefore the second wireless radio frequency modules 405 just obtains electric energy and is activated, now the second wireless radio frequency modules 405 can output packet contain self coding (UID, ubiquitous ID) information signal of information such as, this information signal sends in carrier signal mode via the second antenna L2, now, the first wireless radio frequency modules 402 of reading unit 401 will receive the carrier signal of the inclusion information signal transmitting from receiver 404 by the first antenna L1, and the carrier signal receiving is carried out to demodulation code, more via communication interface 403 notice control units 400, receive at present the carrier signal that receiver 404 transmits, by this control unit 400 just can judge current cap assembly 12 there is no occur with charging station 11 between separated situation.
Once there be burglar to cut off cap assembly 12, for example cut off charging gun 121 or cable set 120, and cap assembly 12 is taken away, in the time of making distance between the second antenna L2 and the first antenna L1 surpass the first safe distance, just cannot there is electromagnetic coupling effect and produce induced current with the first antenna L1 in the second antenna L2, therefore the second wireless radio frequency modules 405 cannot receive enough electric energy and operate, thus, the second wireless radio frequency modules 405 cannot wait the carrier signal mode of information signal to be sent to the first wireless radio frequency modules 402 self coding, now, because the first wireless radio frequency modules 402 cannot receive from the next carrier signal of receiver 404 passback, therefore reading unit 401 will return without receiving receiver 404 the carrier signal of coming at present via communication interface 403 notice control units 400, control unit 400 just can be differentiated between current cap assembly 12 and charging station 11 separated by this, that is there is stolen situation in cap assembly 12, and then produce corresponding alarm signal.
As from the foregoing, embodiment shown in Fig. 4 is the response signal that the information signal that sends by the second wireless radio frequency modules 405 comes the response unit 101 shown in pie graph 2 to export, therefore for the first wireless radio frequency modules 402, can be because separated and exceed the first safe distance and produce corresponding variation between cap assembly 12 and charging station 11, for example, from there being the nothing of becoming during this response signal.
Refer to Fig. 5, and coordinate Fig. 1, wherein Fig. 5 is the particular circuit configurations schematic diagram of the 4th preferred embodiment of the Anti-theft detection device shown in Fig. 1.As shown in Figure 5, in the present embodiment, the mode that Anti-theft detection device 10 detects with the wireless type of bluetooth (bluetooth) communication detect cap assembly 12 whether with charging station 11 between separated, judge whether cap assembly 12 has stolen situation to occur, the detecting unit 100 that is wherein arranged at the Anti-theft detection device 10 in charging station 11 comprises control unit 500 and the first bluetooth module 501, the first bluetooth module 501 can be set as main end (MASTER), and comprise third antenna 502, the first filter 503, the first output balanced to unbalanced transformer (Balun) 504, the first Bluetooth control wafer 505, the first storing memory 506 and the first clock pulse generator 507.The first clock pulse generator 507 is electrically connected to the first Bluetooth control wafer 505, in order to produce clock signal to the first Bluetooth control wafer 505, makes the first Bluetooth control wafer 505 according to the corresponding start of clock pulse of this clock signal.The first storing memory 506 is electrically connected to the first Bluetooth control wafer 505, and framework is in providing storage area, make the first Bluetooth control wafer 505 can be by the data storing of need in the first storing memory 506 or read stored data in the first storing memory 506.The first 505 of Bluetooth control wafers framework is in transmitting or receive one first wireless signal.The first output balanced to unbalanced transformer 504 is electrically connected to the first Bluetooth control wafer 505, framework is in the wireless signal of changing and adjusting the first Bluetooth control wafer 505 and export or receive, make signal transfer mode and damping (impedance) can meet the signal specification of Bluetooth communication agreement, and can be but be not limited to be used in the match circuit of 2.4GHz.The first filter 503 is connected between the first output balanced to unbalanced transformer 504 and third antenna 502, framework, in filtering, can be sent the wireless signal of the first Bluetooth control wafer 505 outputs in outside or by outside, be received other wireless signal as for 502 of third antennas.As for 500 of control units, be electrically connected to the first Bluetooth control wafer 505, it can be linked up with the first Bluetooth control wafer 505.
101 of response units that are arranged at charging gun 121 can be consisted of the second bluetooth module 511, and the second bluetooth module 511 can be set as time main point (SLAVE), and comprise the 4th antenna 512, the second filter 513, the second output balanced to unbalanced transformer (Balun) 514, the second Bluetooth control wafer 515, the second storing memory 516 and the second clock pulse generator 517, right the second bluetooth module 511 forms, and the second bluetooth module 511 comprises the 4th antenna 512, the second filter 513, the second output balanced to unbalanced transformer (Balun) 514, the second Bluetooth control wafer 515, the annexation of the second storing memory 516 and the second clock pulse generator 517 and make flowing mode all similar in appearance to third antenna 502, the first filter 503, the first output balanced to unbalanced transformer 504, the first Bluetooth control wafer 505, the first storing memory 506 and the first clock pulse generator 507, in this, repeat no more.
In above-described embodiment, the first bluetooth module 501 and the second bluetooth module 511 utilize ISM 2.4GHz frequency range, and by less radio-frequency, read information to each other with FHHS frequency-hopping mode, but and endlessly this is limited.
Below by the flowing mode of doing of the Anti-theft detection device shown in key diagram 5.As shown in Figure 5, after the charging station 11 of charging system 1 starts, for main the first bluetooth module 501 of holding just can send the first wireless signal, and when not yet separated between cap assembly 12 and charging station 11, and the first bluetooth module 501 and the second bluetooth module 511 and distance in one second safe distance time, for the second bluetooth module 511 of inferior main point just can receive the first wireless signal of being exported by the first bluetooth module 501, make also corresponding output the second wireless signal to the first bluetooth module 501 of the second bluetooth module 511, therefore between the first bluetooth module 501 and the second bluetooth module 511, just can be connected to each other and form so-called microgrid (PICONET).
Once there be burglar to cut off cap assembly 12, for example cut off charging gun 121 or cable set 120, and cap assembly 12 is taken away, in the time of making the distance of 511 of the first bluetooth module 501 and the second bluetooth modules exceed the second safe distance, that is while exceeding the distance of above-mentioned microgrid, this microgrid just can form broken string, in other words, the first bluetooth module 501 cannot receive the second wireless signal that the second bluetooth module 51 is exported, thus, the first Bluetooth control wafer 505 just can notify control unit 500 that the situation that cannot be connected with the second bluetooth module 511 occurs at present, control unit 500 just can be differentiated between current cap assembly 12 and charging station 11 separated by this, that is there is stolen situation in cap assembly 12, and then produce corresponding alarm signal.
As from the foregoing, embodiment shown in Fig. 5 is the response signal that the second wireless signal of sending by the second bluetooth module 511 comes the response unit 101 shown in pie graph 2 to export, therefore for the first bluetooth module 501, can be because separated and exceed the second safe distance and produce corresponding variation between cap assembly 12 and charging station 11, for example, from there being the nothing of becoming during this response signal.
In sum, the present invention is the charging system of the antitheft detection of a kind of tool, it by arranging the simple and reliable Anti-theft detection device of circuit in charging system, whether separated between the cap assembly that detects charging system in the mode by wired or wireless and charging station, judge by this between cap assembly and charging station, whether to disconnect and have deathwatch's situation to occur, therefore can be in the situation that without paying a large amount of manpowers and money cost, be whether fast detecting has to cap assembly the stolen situation that occurs, and then correspondence is sent alarm signal, reducing by this cap assembly occurs by deathwatch's chance.
The present invention must want technical staff by ability and appoint and execute that craftsman thinks and be to modify as all, so neitherly de-ly as attached, applies for a patent claim Protector that scope is wanted.
Claims (25)
1. a charging system for the antitheft detection of tool, framework charges in the rechargeable battery to an electric motor car, comprises:
One electric supply installation, framework is in output one rechargeable electrical energy;
One cap assembly, is electrically connected to this electric supply installation, and framework is in being plugged in separably this electric motor car, to receive and to transmit this rechargeable electrical energy to this rechargeable battery; And
One Anti-theft detection device, comprises:
One response unit, is arranged in this cap assembly, and exports a response signal; And
One detecting unit, is arranged in this electric supply installation, and is connected with this response unit signal, and framework is in detecting this response signal;
Wherein this response signal corresponding variation when separated between this cap assembly and this electric supply installation, makes this detecting unit learn between this cap assembly and this electric supply installation and disconnect according to this response signal.
2. the charging system of the antitheft detection of tool as claimed in claim 1, wherein this cap assembly more comprises a cable set and a charging gun, and this cable set is electrically connected between this electric supply installation and this charging gun, and this response unit is arranged in this charging gun.
3. the charging system of the antitheft detection of tool as claimed in claim 2, wherein this response unit comprises one first resistance, and the impedance variation of this first resistance forms this response signal.
4. the charging system of the antitheft detection of tool as claimed in claim 3, wherein this first resistance is consisted of the impedance of the electromagnetic valve switch in this charging gun.
5. the charging system of the antitheft detection of tool as claimed in claim 4, wherein this detecting unit comprises:
One impedance detection unit, be electrically connected to this first resistance, and export one first detection signal and one second detection signal, wherein this first detection signal framework is in when this charging system is during in operating mode, whether the impedance of reacting this first resistance changes, this the second detection signal framework is in when this charging system is during in standby mode, and whether the impedance of reacting this first resistance changes; And
One control unit, be electrically connected to this impedance detection unit, framework controls signal to this impedance detection unit in output one, to control this impedance detection unit, carry out corresponding start, and according to the variation of this first detection signal differentiate this cap assembly in this charging system during in operating mode whether with this electric supply installation between separated, and according to the variation of this second detection signal differentiate this cap assembly in this charging system during in standby mode whether with this electric supply installation between separated.
6. the charging system of the antitheft detection of tool as claimed in claim 5, wherein this impedance detection unit comprises a switching circuit, one control end of this switching circuit is electrically connected to this control unit and receives this control signal, one input conduction terminals of this switching circuit receives a driving voltage, one output conduction terminals of this switching circuit is electrically connected to one end of this first resistance of this electromagnetic valve switch, this switching circuit carries out the switching of conducting or cut-off according to this control signal, and when conducting, the electric energy of this driving voltage is sent to this electromagnetic valve switch, to drive this electromagnetic valve switch start.
7. the charging system of the antitheft detection of tool as claimed in claim 6, wherein this impedance detection unit more comprises:
One protective circuit, is electrically connected to one end of this first resistance, and framework is in reception and transmit a standby voltage, and prevents backward current, and avoids this standby voltage influenced when this cap assembly short circuit;
One second resistance, this output conduction terminals of one end of this second resistance and this protective circuit, this switching circuit and one end of this first resistance are connected in one first contact;
One Zener diode, the other end of the cathode terminal of this Zener diode and this second resistance, this control unit are connected in one second contact, and wherein this second contact produces this second detection signal; And
One the 3rd resistance, the anode tap of one end of the 3rd resistance and this control unit, this Zener diode and the other end of this first resistance are electrically connected on one the 3rd contact, the other end of the 3rd resistance is connected with an earth terminal, and wherein the 3rd contact produces this first detection signal.
8. the charging system of the antitheft detection of tool as claimed in claim 7, wherein this protective circuit comprises:
One first diode, the anode tap of this first diode receives this standby voltage.
9. the charging system of the antitheft detection of tool as claimed in claim 8, wherein this protective circuit comprises:
One the 4th resistance, one end of the 4th resistance is electrically connected to the cathode terminal of this first diode, and the other end of the 4th resistance is electrically connected to this first contact.
10. the charging system of the antitheft detection of tool as claimed in claim 6, wherein this switching circuit comprises:
One NPN bipolar transistor, the base stage of this NPN bipolar transistor is electrically connected to and receives this control signal with this control unit, and the emitter-base bandgap grading of this NPN bipolar transistor is electrically connected to an earth terminal; And
One PNP bipolar transistor, the base stage of this PNP bipolar transistor is electrically connected to the collector of this NPN bipolar transistor, the emitter-base bandgap grading of this PNP bipolar transistor receives this driving voltage, and the collector of this PNP bipolar transistor is electrically connected to one end of this first resistance of this electromagnetic valve switch;
Wherein the base stage of this NPN bipolar transistor is this control end, and the emitter-base bandgap grading of this PNP bipolar transistor is this input conduction terminals, and the collector of this PNP bipolar transistor is this output conduction terminals.
The charging system of the antitheft detection of 11. tool as claimed in claim 10, wherein this switching circuit more comprises:
One the 5th resistance, is electrically connected between the base stage of this control unit and this NPN bipolar transistor; And
One the 6th resistance, is connected between the collector of this NPN bipolar transistor and the base stage of this PNP bipolar transistor.
The charging system of the antitheft detection of 12. tool as claimed in claim 6, wherein this impedance detection unit has more one second diode, the anode tap of this second diode is electrically connected to an earth terminal, and the cathode terminal of this second diode is electrically connected to one end of this output conduction terminals and this first resistance.
The charging system of the antitheft detection of 13. tool as claimed in claim 3, wherein this first resistance is consisted of the thermistor in this charging gun, a temperature switch or the extra limited resistance arranging.
The charging system of the antitheft detection of 14. tool as claimed in claim 13, wherein this detecting unit comprises:
One impedance detection unit, is electrically connected to this first resistance, and exports one the 3rd detection signal, and wherein the 3rd detection signal framework is in when this charging system is during in operating mode or standby mode, and whether the impedance of reacting this first resistance changes; And
One control unit, is electrically connected to this impedance detection unit, framework in the variation according to the 3rd detection signal judge this cap assembly in this charging system during in operating mode or standby mode whether with this electric supply installation between separated.
The charging system of the antitheft detection of 15. tool as claimed in claim 14, wherein this impedance detection unit comprises one the 7th resistance, one end of the 7th resistance receives a standby voltage, one end of the other end of the 7th resistance and this first resistance and this control unit are connected in one the 4th contact, and wherein the 4th contact produces the 3rd detection signal.
The charging system of the antitheft detection of 16. tool as claimed in claim 1, wherein this detecting unit comprises a reading unit, this reading unit comprises one first wireless radio frequency modules and one first antenna, this first antenna is electrically connected to an earth terminal, this first wireless radio frequency modules is electrically connected to this first antenna by a transmitting terminal, and framework is in drive this first antenna to send a radiofrequency signal via this transmitting terminal.
The charging system of the antitheft detection of 17. tool as claimed in claim 16, wherein this detecting unit comprises a control unit, is connected, and communicates by this communication interface and this first wireless radio frequency modules by a communication interface with this reading unit.
The charging system of the antitheft detection of 18. tool as claimed in claim 17, wherein this response unit comprises a receiver, and this receiver comprises one second wireless radio frequency modules and one second antenna, this second antenna is electrically connected to this second wireless radio frequency modules and this earth terminal, wherein when the distance between this second antenna and this first antenna is in one first safe distance, this second antenna and this first antenna electromagnetic coupled, order about the information signal that this second wireless radio frequency modules starts and export this response signal of formation, to be sent to this reading unit via this second antenna, by this when the distance between this second antenna and this first antenna surpasses this first safe distance and makes this reading unit cannot receive this information signal, this reading unit is notified this control unit, this control unit is judged between this cap assembly and this electric supply installation separated.
The charging system of the antitheft detection of 19. tool as claimed in claim 1, wherein this detecting unit comprises:
One first bluetooth module, is set as main end, and sends one first wireless signal; And
One control unit, is electrically connected to this first bluetooth module, and links up with this first bluetooth module.
The charging system of the antitheft detection of 20. tool as claimed in claim 19, wherein this response unit comprises one second bluetooth module, this second bluetooth module is set as time main point, distance between this second bluetooth module and this first bluetooth module is in one second safe distance, this second bluetooth module because of should the first wireless signal return form this response signal one second wireless signal to this first bluetooth module, by this when the distance between this first bluetooth module and this second bluetooth module surpasses this second safe distance and makes this first bluetooth module cannot receive this second wireless signal, this first bluetooth module is notified this control unit, this control unit is judged between this cap assembly and this electric supply installation separated.
The charging system of the antitheft detection of 21. tool as claimed in claim 20, wherein this first bluetooth module comprises a clock pulse generator, and framework is in producing a clock signal.
The charging system of the antitheft detection of 22. tool as claimed in claim 21, wherein this first bluetooth module comprises a Bluetooth control wafer, be electrically connected to this clock pulse generator and this control unit, framework is in the respective action according to the clock pulse of this clock signal, to export this first wireless signal, and link up with this control unit.
The charging system of the antitheft detection of 23. tool as claimed in claim 22, wherein this first bluetooth module comprises a storing memory, is connected with this Bluetooth control wafer electric, and framework is in supplying this Bluetooth control chip storage or reading out data.
The charging system of the antitheft detection of 24. tool as claimed in claim 23, wherein this first bluetooth module comprises:
One output balanced to unbalanced transformer, is connected with this Bluetooth control wafer electric;
One filter, is electrically connected to this output balanced to unbalanced transformer, and framework is in filtering; And
One antenna, is electrically connected to this filter.
The charging system of the antitheft detection of 25. tool as claimed in claim 20, wherein this first bluetooth module and this second bluetooth module utilize ISM 2.4GHz frequency range, and by less radio-frequency, read information to each other with FHHS frequency-hopping mode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210295870.7A CN103633670B (en) | 2012-08-20 | 2012-08-20 | The charging system of the antitheft detection of tool |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210295870.7A CN103633670B (en) | 2012-08-20 | 2012-08-20 | The charging system of the antitheft detection of tool |
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| CN103633670B CN103633670B (en) | 2015-11-25 |
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Cited By (1)
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| CN105553031A (en) * | 2016-02-02 | 2016-05-04 | 易事特集团股份有限公司 | Charger circuit and charging pile of electromobile and disconnection detection device of charging pistol connection line |
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| CN103633670B (en) | 2015-11-25 |
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