CN201118271Y - Vehicle mounted accumulator system suitable for automobile with dynamic batteries - Google Patents
Vehicle mounted accumulator system suitable for automobile with dynamic batteries Download PDFInfo
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- CN201118271Y CN201118271Y CNU2007201823001U CN200720182300U CN201118271Y CN 201118271 Y CN201118271 Y CN 201118271Y CN U2007201823001 U CNU2007201823001 U CN U2007201823001U CN 200720182300 U CN200720182300 U CN 200720182300U CN 201118271 Y CN201118271 Y CN 201118271Y
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Abstract
The utility model provides a vehicle battery system for vehicles with dynamic battery group, including a charger, a battery group, a discharging control device and a controller. The pressure input terminal of the charger is connected with the output terminal of the vehicle dynamic battery group; the pressure output terminal of the charger is connected with the input terminal of the battery group; the output terminal of the battery group is connected with the pressure input terminal of the discharging control device; the pressure output terminal of the discharging control device is used as the load tie-in terminal; the battery group is provided with a plurality of detection terminals; a plurality of input terminals of the controller are respectively connected with a plurality of detection terminals of the battery group and respectively input pressure and current detection signals of each battery; a plurality of output terminals of the controller are respectively connected with the signal input terminal of the charger and the control terminal of the discharging control device and respectively output the control signal of the charger and the discharging control signal. Therefore, the system provided by the utility model can ensure that the vehicle battery will be continuously charged without power lack.
Description
Technical field
The utility model relates to a kind of Vehicular accumulator cell system, more specifically, relates to a kind of Vehicular accumulator cell system that is applicable to the automobile that has power battery pack.
Background technology
Mostly existing Vehicular accumulator cell is lead acid accumulator, and it is for its charging, in case car kills engine by the small generator on the car, small generator will quit work, storage battery will be stopped charging, if car does not use for a long time, can cause storage battery the electrical phenomena of bursting to occur.
The utility model content
For solving above-mentioned lead acid accumulator occur the bursting technical problem of electrical phenomena, the purpose of this utility model provides a kind of Vehicular accumulator cell system, and it can guarantee that Vehicular accumulator cell is uninterruptedly charged, thereby the electrical phenomena of bursting can not occur.
For achieving the above object, a kind of Vehicular accumulator cell system that is applicable to the automobile that has power battery pack that the utility model provides, this system comprises charger, batteries, discharge control device and controller, the voltage input end of described charger connects the output of the power battery pack of automobile, the voltage output end of charger connects the input of described batteries, the voltage input end of the output termination discharge control device of described batteries, the voltage output end of described discharge control device is as the load incoming end, batteries has a plurality of test sides, a plurality of input ports of described controller connect a plurality of test sides of batteries respectively and import the electric current and voltage detection signal of each storage battery respectively, and a plurality of output ports of described controller connect the signal input part of described charger respectively and the control end of discharge control device is also exported charger control signal and discharge control signal respectively.
The Vehicular accumulator cell system that the utility model provides, the voltage input end of charger directly links to each other with power battery pack, and the voltage transformation through charger obtains low tension, the charging of accumulators group.Be connected with load by discharge control device, powering load, whole system is controlled and is monitored its charge and discharge process by controller.Therefore, it can guarantee that Vehicular accumulator cell is uninterruptedly charged, quit work such as still keeping charging after closing car key at automobile to storage battery, so even automobile for a long time can not burst without storage battery yet.
Description of drawings
Fig. 1 is the system block diagram of Vehicular accumulator cell of the present utility model system;
Fig. 2 is the systematic schematic diagram of Vehicular accumulator cell of the present utility model system;
Fig. 3 is the charger circuit schematic diagram;
Fig. 4 is the discharge control device circuit theory diagrams;
Fig. 5 is the signal sample circuit schematic diagram.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As Fig. 1, shown in Figure 2, a kind of Vehicular accumulator cell system that is applicable to the automobile that has power battery pack 5 that the utility model provides, this system comprises charger 1, batteries 2, discharge control device 3 and controller 4, the voltage input end of described charger 1 connects the output of the power battery pack 5 of automobile, the voltage output end of charger 1 connects the input of described batteries 2, the voltage input end of the output termination discharge control device 3 of described batteries 2, the voltage output end of described discharge control device 3 is as the load incoming end, batteries 2 has a plurality of test sides, a plurality of input ports of described controller 4 connect a plurality of test sides of batteries 2 respectively and import the electric current and voltage detection signal of each storage battery respectively, and a plurality of output ports of described controller 4 connect the signal input part of described charger 1 respectively and the control end of discharge control device 3 is also exported charger 1 control signal and discharge control signal respectively.
Described charger 1 can be various voltage conversion circuits, be preferably voltage conversion circuit as shown in Figure 3, comprise input filter circuit 11, output filter circuit 12, transformer 14, control chip 13, second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, first capacitor C 1, second capacitor C 2 and the 3rd switch Q3 with protective circuit; The output of the power battery pack 5 of the input termination automobile of described input filter circuit 11; one end of the described transformer 14 primary side main coils 141 of the output termination of input filter circuit 11; the end of described the 3rd switch Q3 of another termination of main coil 141; the other end of the 3rd switch Q3 connects the circuit protection pin of described control chip 13 by the 3rd resistance R 3; and by the 4th resistance R 4 ground connection; the contact of described circuit protection pin and the 3rd resistance R 3 is by first capacitor C, 1 ground connection; the earth terminal ground connection of described control chip 13; the signal output part of control chip 13 connects the control end of described the 3rd switch Q3 by second resistance R 2; the signal input part of control chip 13 meets the charger 1 control signal output ends mouth P5 of described controller 4; described transformer 14 primary side secondary coils 142 1 end ground connection; the power input of the described control chip 13 of another termination; two inputs of the described output filter circuit 12 of transformer 14 secondary coils, 143 cross-over connections; the input of the output termination batteries 2 of output filter circuit 12, an end of described secondary coil 143 is by second capacitor C, 2 ground connection.
Described power battery pack 5 output high voltages (generally at 200-400VDC) are to described input filter circuit 11, through input filter circuit 11 rectifications, filtering, voltage is transported to the main coil 141 of described transformer 14 primary sides, main coil 141 links to each other with the 3rd switch Q3 that controlled chip 13 drives, therefore, produce high-frequency alternating voltage on former limit.Because the electromagnetic induction effect produces the voltage (12VDC) that is fit to batteries 2 on transformer 14 secondary coils 143, be transported to the input of batteries 2 after input filter circuit 12 rectifications, filtering, 2 chargings of accumulators group.Described batteries 2 is a plurality of battery serial connections; the positive pole of batteries 2; the contact of negative pole and adjacent two batteries is connected with described controller 4 each self-corresponding battery tension current detecting port; detect the arbitrary cell voltage or the electric current overrate of batteries 2 when the battery tension current detecting port of controller 4; when perhaps batteries 2 has been full of situations such as electricity; the charger 1 control signal output ends mouth P5 of controller 4 can send the signal input part of control signal to described control chip 13; control chip 13 is exported corresponding pulse signal to change 1 output of described the 3rd switch Q3 duty ratio size charge closing device, with protection batteries 2 according to the control signal of input.
Described input filter circuit 11 and output filter circuit 12 are for well known to a person skilled in the art circuit, and its effect is that the voltage of importing is carried out exporting after rectification, the filtering again, as RC filter circuit, LC filter circuit etc., is preferably the RC filter circuit.
Described control chip 13 is as well known to those skilled in the art, and it can receive control signal and export corresponding pulse signal according to control signal, such as chip S8254, battery charging and discharging managing chip etc., is preferably chip S8254.
Described transformer 14 is as well known to those skilled in the art, and the coil of transformer 14 primary sides can be one or more, is preferably two, is respectively main coil 141 and secondary coil 142.
As shown in Figure 4, described discharge control device 3 comprises the 3rd relay K 3, the first switch Q1, second switch Q2, the first counnter attack diode D1, the second counnter attack diode D2, the first voltage-stabiliser tube D3, the second voltage-stabiliser tube D4, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8, the first triode T1 and the second triode T2; The positive pole of the described batteries 2 of a termination of the first switch Q1 and second switch Q2, the other end connects the anode of the first counnter attack diode D1 and the second counnter attack diode D2 respectively, the negative electrode of the first counnter attack diode D1 and the second counnter attack diode D2 docks and connects the positive output end of vehicle-mounted DC-DC converter 7, the emitter of the described first triode T1 connects the control end of described first switch Q1 and second switch Q2 respectively by the 5th resistance R 5 and the 6th resistance R 6, the base stage of the first triode T1 meets the first discharge control port P1 of described controller 4 by the 7th resistance R 7, the collector electrode of the first triode T1 connects the negative pole and the ground connection of described batteries 2, the positive pole of the described batteries 2 of one termination of described the 3rd relay K 3 input circuits, the emitter of the described second triode T2 of another termination, the positive pole of one termination batteries 2 of the 3rd relay K 3 output loops, the anode of the described first counnter attack diode D1 of another termination, the base stage of the described second triode T2 meets described controller 4 second discharge control port P2 by the 8th resistance R 8, the collector electrode of the second triode T2 connects the negative output terminal and the ground connection of vehicle-mounted DC-DC converter 7, and described first voltage-stabiliser tube D3 and the cross-over connection of second voltage-stabiliser tube D4 difference are between the base stage and collector electrode of the described first triode T1 and the second triode T2.
Described switch Q1, Q2 and Q3 well known to a person skilled in the art that any one has the controllable switch element of control end, and for example relay, MOSFET pipe, IGBT etc. are preferably the MOSFET pipe.
Described batteries 2 is the storage battery of one or more series connection, the contact of the positive pole of batteries 2, negative pole and adjacent two storage batterys is as the test side, connect with the corresponding input port of described controller 4, import the electric current and voltage detection signal of each storage battery, the minus earth of batteries 2.The output voltage of described batteries 2 is lower than the output voltage of described DC-DC converter 7.
Described storage battery is a new chemical battery known in those skilled in the art, as lithium ion battery, iron cell etc., for the consideration of cost performance and environmental protection, is preferably iron cell.
Iron cell is the ferrate (K with synthesizing stable
2FeO
4, BaFeO
4Deng), as the positive electrode of iron cell make that energy density is big, volume is little, in light weight, the life-span long, free of contamination new chemical battery.Product after the ferrate discharge is FeOOH or Fe
2O
3-H
2O, nontoxic pollution-free, environmentally friendly, do not need to reclaim.
As shown in Figure 2, this system also comprises soft starting circuit 8, and between described charger 1 and power battery pack 5, described soft starting circuit 8 comprises first relay K 1, second relay K 2, signal sample circuit 9 and first resistance R 1; The positive pole of the described batteries 2 of input circuit one termination of described first relay K 1 and second relay K 2; the other end meets the first voltage protection port P3 and the second voltage protection port P4 of described controller 4 respectively; the cathode output end of the output loop one termination power battery pack 5 of described first relay K 1 and second relay K 2; the other end of the output loop of second relay K 2 connects the other end of the output loop of first relay K 1 by first resistance R 1; and connect the voltage input end of described charger 1; two signal input parts of described signal sample circuit 9 connect the cathode output end and the cathode output end of power battery pack 5 respectively, and the signal output part of signal sample circuit 9 connects the signal input part of described controller 4.
Described signal sample circuit 9 is used to gather the voltage signal of described power battery pack 5 outputs, preferably, as shown in Figure 5, described signal sample circuit 9 comprises first optical coupler 91, second optical coupler 92, the the 9th to the 13 resistance (R9, R10, R11, R12, R13,), the 3rd capacitor C 3, the 4th capacitor C 4, operational amplifier A 1 and power supply VCC, an input of described first optical coupler 91 connects the cathode output end of power battery pack 5 by the 9th resistance R 9, the cathode output end of another input termination power battery pack 5, an output exporting termination power VCC output and connect described second optical coupler 92 of described first optical coupler 91, the positive input of the described operational amplifier A 1 of another output termination of described first optical coupler 91 also passes through the tenth resistance R 10 ground connection, the reverse input end of another output termination operational amplifier A 1 of described second optical coupler 92 and an end of the 3rd capacitor C 3, and by the 11 resistance R 11 ground connection, the other end of described the 3rd capacitor C 3 of output termination of described operational amplifier A 1 and an input of second optical coupler 92, another input of second optical coupler 92 is by the 12 resistance R 12 ground connection, described the 4th capacitor C 4 one end ground connection, the other end is connected with another input of second optical coupler 92 by described the 13 resistance R 13, and the contact of the 4th capacitor C 4 and the 13 resistance R 13 is as the signal output part of signal sample circuit 9.
Described power supply VCC is the 12V DC power supply.
Described first and second optical couplers (91,92) are known to those skilled in the art, seldom describe at this.
Described signal sample circuit 9 is input to the voltage signal of the power battery pack 5 that collects the signal input part of described controller 4.When the voltage that detects batteries 2 when the detection port of controller 4 is lower than set point and need charges to it, controller 4 judges according to the voltage signal of signal sample circuit 9 inputs: if the voltage of power battery pack 5 is lower than the minimum threshold values of setting, described soft starting circuit 8 not conductings are not to batteries 2 chargings; If the voltage of power battery pack 5 is set threshold values and maximum the setting between the threshold values in minimum; illustrate and satisfy the discharge requirement; described controller 4 makes the output loop conducting of second relay K 2 by the first voltage protection port P3; power battery pack 5 begins to be batteries 2 chargings; first resistance R 1 plays the instantaneous large-current percussion when suppressing charger 1 energising just; then controller 4 is finished whole soft start-up process by the output loop conducting that the second voltage protection port P4 makes first relay K 1.Described controller 4 is controlled the sequential logic of second relay K 2 and first relay K 1 respectively and can be set controller 4 in advance.If described voltage signal is set threshold values greater than maximum, controller 4 can send signal quits work first relay K 1 and second relay K 2, thereby cuts off the input of charger 1, protection charger 1.
Described controller 4 can be to well known to a person skilled in the art any programmable microprocessor, as FPGA, ASIC or single-chip microcomputer, is preferably single-chip microcomputer.
Described power battery pack 5 is as well known to those skilled in the art, is used for providing power source for above-mentioned automobile on electric automobile or the hybrid vehicle.
Described relay K 1, K2 and K3 are as well known to those skilled in the art, seldom describe at this.
Described DC-DC converter 7 is as well known to those skilled in the art, seldom describes at this.
Set forth operation principle of the present utility model below.
Described power battery pack 5 output high voltages (generally at 200-400VDC) are transported to voltage the input of described batteries 2 to described charger 1 after charger 1 rectification, filtering, step-down, 2 chargings of accumulators group.Detect the arbitrary cell voltage or the electric current overrate of batteries 2 when the detection port of controller 4; when perhaps batteries 2 has been full of situations such as electricity; the charger 1 control signal output ends mouth P5 of controller 4 can send the signal input part of control signal to described control chip 13; control chip 13 is exported corresponding pulse signal to change 1 output of described switch Q3 duty ratio size charge closing device, with protection batteries 2 according to the control signal of input.When described discharge control device 3 is started working, controller 4 first discharge control port P1 output high level signals make the first triode T1 conducting, thereby open the first switch Q1 and second switch Q2, controller 4 second discharge control port P2 export high level signals then, make the second triode T2 conducting, the 3 input circuit conductings of the 3rd relay K, 3 work of the 3rd relay K, make the output loop conducting, at this moment, the first switch Q1 and second switch Q2 are by short circuit, and no current passes through.Controller 4 cuts out the 3rd relay K 3 earlier and cuts out the first switch Q1 and second switch Q2 again when closing.The sequential of whole process is by realizing in advance controller 4 written program.This method that is equivalent to soft switch has protected the 3rd relay K 3 to avoid big voltage when opening and closing effectively, big electric current ground impacts, and has prolonged its life-span; Simultaneously, in normal discharge process, big electric current is through the output loop of the 3rd relay K 3, and without the first switch Q1 and second switch Q2, avoided the first switch Q1 and second switch Q2 to produce loss because of flowing through big electric current for a long time like this.The first counnter attack diode D1 and the second counnter attack diode D2 can effectively avoid 7 pairs of batteries of DC-DC converter 2 to carry out large current charge, thereby have protected batteries 2.
Because the output voltage of described batteries 2 is lower than the output voltage of DC-DC converter 7; therefore when DC-DC converter 7 operate as normal; batteries 2 is not load 6 power supplies; only when working unusually or not appears in DC-DC converter 7; batteries 2 for load 6 power supplies, is the unlimited power devices such as alarm warning lamp on the car when for example automobile quits work.
Claims (7)
1, a kind of Vehicular accumulator cell system that is applicable to the automobile that has power battery pack (5), it is characterized in that, this system comprises charger (1), batteries (2), discharge control device (3) and controller (4), the voltage input end of described charger (1) connects the output of the power battery pack (5) of automobile, the voltage output end of charger (1) connects the input of described batteries (2), the voltage input end of the output termination discharge control device (3) of described batteries (2), the voltage output end of described discharge control device (3) is as the load incoming end, batteries (2) has a plurality of test sides, a plurality of input ports of described controller (4) connect a plurality of test sides of batteries (2) respectively and import the electric current and voltage detection signal of each storage battery respectively, and a plurality of output ports of described controller (4) connect the signal input part of described charger (1) respectively and the control end of discharge control device (3) is also exported charger (1) control signal and discharge control signal respectively.
2, Vehicular accumulator cell according to claim 1 system, it is characterized in that described charger (1) comprises input filter circuit (11), output filter circuit (12), transformer (14), control chip (13), second resistance (R2), the 3rd resistance (R3), the 4th resistance (R4), first electric capacity (C1), second electric capacity (C2) and the 3rd switch (Q3); The output of the power battery pack (5) of the input termination automobile of described input filter circuit (11); one end of the described transformer of output termination (14) the primary side main coil (141) of input filter circuit (11); one end of described the 3rd switch of another termination of main coil (141) (Q3); the other end of the 3rd switch (Q3) connects the circuit protection pin of described control chip (13) by the 3rd resistance (R3); and by the 4th resistance (R4) ground connection; the contact of described circuit protection pin and the 3rd resistance (R3) is by first electric capacity (C1) ground connection; the earth terminal ground connection of described control chip (13); the signal output part of control chip (13) connects the control end of described the 3rd switch (Q3) by second resistance (R2); the signal input part of control chip (13) connects charger (1) the control signal output ends mouth (P5) of described controller (4); described transformer (14) primary side secondary coil (142) one end ground connection; the power input of the described control chip of another termination (13); two inputs of the described output filter circuit of transformer (14) secondary coil (143) cross-over connection (12); the input of the output termination batteries (2) of output filter circuit (12), an end of described secondary coil (143) is by second electric capacity (C2) ground connection.
3, Vehicular accumulator cell according to claim 1 system, it is characterized in that described discharge control device (3) comprises the 3rd relay (K3), first switch (Q1), second switch (Q2), the first counnter attack diode (D1), the second counnter attack diode (D2), first voltage-stabiliser tube (D3), second voltage-stabiliser tube (D4), the 5th resistance (R5), the 6th resistance (R6), the 7th resistance (R7), the 8th resistance (R8), first triode (T1) and second triode (T2); The positive pole of the described batteries of one termination (2) of first switch (Q1) and second switch (Q2), the other end connects the anode of the first counnter attack diode (D1) and the second counnter attack diode (D2) respectively, the negative electrode of the first counnter attack diode (D1) and the second counnter attack diode (D2) docks and connects the positive output end of vehicle-mounted DC-DC converter (7), the emitter of described first triode (T1) connects the control end of described first switch (Q1) and second switch (Q2) respectively by the 5th resistance (R5) and the 6th resistance (R6), the base stage of first triode (T1) connects the first discharge control port (P1) of described controller (4) by the 7th resistance (R7), the collector electrode of first triode (T1) connects the negative pole and the ground connection of described batteries (2), the positive pole of the described batteries of one termination (2) of described the 3rd relay (K3) input circuit, the emitter of described second triode of another termination (T2), the positive pole of one termination batteries (2) of the 3rd relay (K3) output loop, the anode of the described first counnter attack diode (D1) of another termination, the base stage of described second triode (T2) connects described controller (4) second discharge control ports (P2) by the 8th resistance (R8), the collector electrode of second triode (T2) connects the negative output terminal and the ground connection of vehicle-mounted DC-DC converter (7), and described first voltage-stabiliser tube (D3) and the cross-over connection of second voltage-stabiliser tube (D4) difference are between the base stage and collector electrode of described first triode (T1) and second triode (T2).
4, Vehicular accumulator cell according to claim 1 system, it is characterized in that, described batteries (2) is the iron cell of one or more series connection, the contact of the positive pole of batteries (2), negative pole and adjacent two iron cells is as the test side, connect with the corresponding input port of described controller (4), import the electric current and voltage detection signal of each storage battery, the minus earth of batteries (2).
5, Vehicular accumulator cell according to claim 1 system is characterized in that described controller (4) is a single-chip microcomputer.
6, Vehicular accumulator cell according to claim 1 system, it is characterized in that, this system also comprises soft starting circuit (8), be positioned between described charger (1) and the power battery pack (5), described soft starting circuit (8) comprises first relay (K1), second relay (K2), signal sample circuit (9) and first resistance (R1); The positive pole of the described batteries of input circuit one termination (2) of described first relay (K1) and second relay (K2); the other end connects the first voltage protection port (P3) and the second voltage protection port (P4) of described controller (4) respectively; the cathode output end of the output loop one termination power battery pack (5) of described first relay (K1) and second relay (K2); the other end of the output loop of second relay (K2) connects the other end of the output loop of first relay (K1) by first resistance (R1); and connect the voltage input end of described charger (1); two signal input parts of described signal sample circuit (9) connect the cathode output end and the cathode output end of power battery pack (5) respectively, and the signal output part of signal sample circuit (9) connects the signal input part of described controller (4).
7, Vehicular accumulator cell according to claim 6 system, it is characterized in that, described signal sample circuit (9) comprises first optical coupler (91), second optical coupler (92), the the 9th to the 13 resistance (R9, R10, R11, R12, R13,), the 3rd electric capacity (C3), the 4th electric capacity (C4), operational amplifier (A1) and power supply (VCC), an input of described first optical coupler (91) connects the cathode output end of power battery pack (5) by the 9th resistance (R9), the cathode output end of another input termination power battery pack (5), an output exporting termination power (VCC) output and connect described second optical coupler (92) of described first optical coupler (91), the positive input of another output described operational amplifier of termination (A1) of described first optical coupler (91) also passes through the tenth resistance (R10) ground connection, the reverse input end of another output termination operational amplifier (A1) of described second optical coupler (92) and an end of the 3rd electric capacity (C3), and by the 11 resistance (R11) ground connection, an input of the other end of described the 3rd electric capacity of the output termination of described operational amplifier (A1) (C3) and second optical coupler (92), another input of second optical coupler (92) is by the 12 resistance (R12) ground connection, described the 4th electric capacity (C4) end ground connection, the other end is connected with another input of second optical coupler (92) by described the 13 resistance (R13), and the contact of the 4th electric capacity (C4) and the 13 resistance (R13) is as the signal output part of signal sample circuit 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201823001U CN201118271Y (en) | 2007-11-21 | 2007-11-21 | Vehicle mounted accumulator system suitable for automobile with dynamic batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201823001U CN201118271Y (en) | 2007-11-21 | 2007-11-21 | Vehicle mounted accumulator system suitable for automobile with dynamic batteries |
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| Publication Number | Publication Date |
|---|---|
| CN201118271Y true CN201118271Y (en) | 2008-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201823001U Expired - Lifetime CN201118271Y (en) | 2007-11-21 | 2007-11-21 | Vehicle mounted accumulator system suitable for automobile with dynamic batteries |
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| CN (1) | CN201118271Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101938155A (en) * | 2010-09-16 | 2011-01-05 | 上海中科深江电动车辆有限公司 | Automatic charging device for static electric automobile storage battery |
| CN106740591A (en) * | 2016-12-13 | 2017-05-31 | 中国航空工业集团公司洛阳电光设备研究所 | A kind of vehicle-mounted HUD HUDs power-supply management system |
-
2007
- 2007-11-21 CN CNU2007201823001U patent/CN201118271Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101938155A (en) * | 2010-09-16 | 2011-01-05 | 上海中科深江电动车辆有限公司 | Automatic charging device for static electric automobile storage battery |
| CN106740591A (en) * | 2016-12-13 | 2017-05-31 | 中国航空工业集团公司洛阳电光设备研究所 | A kind of vehicle-mounted HUD HUDs power-supply management system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080917 |