CN202294618U - Control circuit for electric automobile - Google Patents
Control circuit for electric automobile Download PDFInfo
- Publication number
- CN202294618U CN202294618U CN201120406960XU CN201120406960U CN202294618U CN 202294618 U CN202294618 U CN 202294618U CN 201120406960X U CN201120406960X U CN 201120406960XU CN 201120406960 U CN201120406960 U CN 201120406960U CN 202294618 U CN202294618 U CN 202294618U
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- battery
- control circuit
- conv
- power battery
- direct current
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Abstract
The utility model relates to a control circuit, in particular to a control circuit for an electric automobile. The control circuit is provided with an emergency switch, a direct current contactor, a total fuse BF1 connected among power battery packs in series and a total fuse SF1 connected with anodes of power battery packs in series; the emergency switch is arranged on a high voltage line anode output line; and the direct current contactor is arranged on the high voltage line anode output line, and the anode of a small battery is sequentially connected with an ignition switch, a direct current contactor and a direct current (DC)/DC converter in series. According to the control circuit, the safety of drivers and passengers can be effectively protected in emergency situations such as short circuit in battery packs, short circuit in single battery, short circuit of high voltage line, and anode/cathode short circuit caused by negligent power battery disassembly and assembly, and the total fuses can be timely burnt out. Under the emergency situations, after the emergency switch is switched off by users, a warning light and a central lock can still normally work, so that the requirement on alarming and escaping can be met.
Description
Technical field
The utility model relates to a kind of control circuit, relates in particular to a kind of Control of Electric Vehicles circuit.
Background technology
Along with oil supply is becoming tight, oil price high, add the serious environmental pollution that vehicle exhaust brings, new-energy automobile substitutes traditional fuel-engined vehicle, has become the development tendency of automobile industry.And zero-emission, zero pollute, safe and reliable, can electrically-charged repeatedly pure electric automobile, thought the ultimate aim of new-energy automobile development by industry.
And the popularization of electronlmobil removes the price height of single purchase, and outside the battery flying power was limited, safety problem also was the principal element of development of restriction electronlmobil and popularization in addition.The safety problem that electronlmobil is maximum, the one, battery itself, the 2nd, high-tension line.Occurred in the pure electronic taxicar spontaneous combustion of many Tai Langyue in street corner, Hangzhou on April 11st, 2011; Caused the worry to electronlmobil safety of industry; The back according to the expert's conclusion that draws after collective of the expert group consultation of doctors is: battery pack through battery leakage has appearred after being repeatedly used, insulation is impaired and the situation of partial short-circuit under; Fail in time to find, thereby cause the generation of accident.
Mainly there is following potential safety hazard in present pure electric automobile battery: 1, the accident that causes of batteries of electric automobile group internal short-circuit, cell internal short-circuit, high-tension line short circuit; 2, the dismounting electrokinetic cell is owing to neglecting the positive and negative grade of safety misadventure that short circuit causes that causes; 3, in case of emergency, after the cut-out electrical source of power, Warning light and central controlled lock can not work influence be reported to the police and escape.
Summary of the invention
The utility model technical matters to be solved provides a kind of simple in structure, with low cost and Control of Electric Vehicles circuit that control accuracy is higher, this Control of Electric Vehicles circuit for eliminating the potential safety hazard that causes of batteries of electric automobile group internal short-circuit, cell internal short-circuit, high-tension line short circuit.
Technical scheme
A kind of Control of Electric Vehicles circuit comprises power battery pack, lead, battery charger, drive motor controller, electric air-conditioning compressor, electric air-conditioning ptc heater, DC/DC conv, ignition lock, the baby battery of 12V12Ah, central controlled lock, Warning light; It is characterized in that: also be provided with emergency switch, DC contactor, be connected on the total insurance BF1 between the power battery pack and be connected on the anodal total insurance SF1 of power battery pack; Said emergency switch is arranged on the anodal output line of high-tension line; Said DC contactor is arranged on the anodal output line of high-tension line, and said baby battery is anodal to be connected in series with ignition lock, DC contactor, DC/DC conv successively.
Said baby battery and said central controlled lock, Warning light are connected in parallel.
Also be provided with a diode, this diode is between the 12V of DC/DC conv out-put supply and baby battery.
Beneficial effect
Compared with prior art, the utility model Control of Electric Vehicles circuit has following advantage:
1, the total insurance of series connection BF1 between power battery pack to guarantee that voltage must not surpass 36V between 2 adjacent total insurances, has ensured personal safety;
2, on the anodal output line of high-tension line, an emergency switch is set, in case of emergency can breaks off the 72V power supply rapidly, guarantee occupant safety; When dismounting electrokinetic cell and maintenance,, cut off 72V power safety, convenience for guaranteeing safety; Reach in transit when parking for a long time, can cut off the 72V power supply through this switch; Ensured personal safety;
3, on the anodal output line of high-tension line, a DC contactor is set; The break-make of contactless switch is controlled through ignition lock, when ignition lock at the LOCK shelves, in the time of one grade, all can not start drive motor; When ignition lock was screwed to second gear, contactless coil got electric, and open contact closes, and drive motor is normal operation under acceleration pedal and gear control; Through low tension switch control high voltage circuit, ensured personal safety;
4, the baby battery of a 12V12Ah of parallel connection in the 12V system.Said baby battery and said central controlled lock, Warning light are connected in parallel; In emergency circumstances, the user is after cutting off emergency switch, and Warning light, central controlled lock still can normal operation, satisfies and reports to the police and the needs of escape;
5, also be provided with a diode, this diode is between the 12V of DC/DC conv out-put supply and baby battery; Because the unilateral conductivity of diode, car are after startup, normal battery such as power shortage, DC/DC can follow baby battery to charge; In case of emergency, the user breaks off emergency switch, and the baby battery electric energy can only be supplied with central controlled lock, Warning light work.Under normal circumstances, ignition key is at one grade or two P PARK Position Ps, and Warning light, central controlled lock power supply are supplied power by the DC/DC conv.
Description of drawings
Fig. 1 is the circuit diagram of total insurance BF1 of the utility model;
Fig. 2 is the circuit diagram of the emergency switch of the utility model;
Fig. 3 is the baby battery and the central controlled lock of the utility model, the junction circuit figure of Warning light;
Fig. 4 is the junction circuit figure of the ignition lock of the utility model.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the utility model.
Like Fig. 1, Fig. 2, a kind of Control of Electric Vehicles circuit shown in Figure 3, comprise power battery pack, lead, battery charger, drive motor controller, electric air-conditioning compressor, electric air-conditioning ptc heater, DC/DC conv, ignition lock, the baby battery of 12V12Ah, central controlled lock, Warning light; Also be provided with emergency switch, DC contactor, be connected on the total insurance BF1 between the power battery pack and be connected on the anodal total insurance SF1 of power battery pack; Said emergency switch is arranged on the anodal output line of high-tension line; Said DC contactor is arranged on the anodal output line of high-tension line, and said baby battery is anodal to be connected in series with ignition lock, DC contactor, DC/DC conv successively.
Said baby battery and said central controlled lock, Warning light are connected in parallel.
In addition, this circuit also is provided with a diode, and this diode is between the 12V of DC/DC conv out-put supply and baby battery.Because the unilateral conductivity of diode, car are after startup, normal battery such as power shortage, DC/DC can follow baby battery to charge; In case of emergency, the user breaks off emergency switch, and the baby battery electric energy can only be supplied with central controlled lock, Warning light work.Under normal circumstances, ignition key is at one grade or two P PARK Position Ps, and Warning light, central controlled lock power supply are supplied power by the DC/DC conv.
When ignition lock was positioned at the LOCK shelves, No. 3 pin positions of DC-DC conv did not have electricity, and the DC/DC conv can't be worked.No. 2 pin position no current output, the 72V electrical part can not be worked, and the 12V electrical part removes central controlled lock, the outer cisco unity malfunction of Warning light.This moment, the 12V baby battery was supplied power to central controlled lock, and Warning light also can normal operation under the situation of switch closure.This moment direction of current: the negative pole of baby battery positive pole → L1b → L1e and L1f → central controlled lock and Warning light (Warning light switch closure) → baby battery, like Fig. 3.
When ignition lock was positioned at one grade, the baby battery electric current was given No. 3 pin positions of DC/DC conv through one grade of binding post of ignition lock, and it is electric that No. 3 pin positions get, the DC/DC normal operation, and this moment, car load 12V current consumer can normal operation.But this moment, the coil of contactless switch did not still have electric current to pass through, so 72V drive motor and 72V current consumer still can not be worked.Direction of current: baby battery positive pole → L1c → one grade → L2 → G1a of ignition lock; After the DC/DC conv normal operation, direction of current: power battery anode B1+ → B1a+ → emergency switch → h1 → h1b → h4 → DC/DC conv (the 72V direct current converts the 12V direct current (DC) into) → power battery cathode B1-; Current consumer → G1a of DC/DC conv 12V+ → L1 → 12V (No. 4 pin positions of DC/DC conv).
When ignition lock was positioned at second gear, normal electric battery current was through ignition lock second gear binding post, wherein one the tunnel be defeated by the DC/DC conv No. 3 pin positions, when being positioned at one grade in like manner; The DC/DC normal operation, 12V current consumer ability normal operation, the coil of DC contactor is defeated by on another road; Coil gets electric, and DC contactor is closed, 72V current consumer ability normal operation; Under this situation, motor is at acceleration pedal, and gear control is normal operation down.Direction of current: with ignition lock one grade the time in like manner, and increase: the coil-end → G1h of baby battery positive pole → L1c → ignition lock second gear → L3 → DC contactor → baby battery negative pole; 72V current consumer direction of current: power battery anode B1+ → B1a+ → emergency switch → h1 → h1a → insurance SF1 → h2 → h3 → 72V current consumer → power battery cathode B1-, like Fig. 4.
More than show and described groundwork and the principal character and the advantage thereof of the utility model.The technological personage of the industry should understand; The utility model does not receive the restriction of above-mentioned implementing regulations; The principle of describing in above-mentioned implementing regulations and the specification sheets that just is used to explain the utility model; Under the prerequisite that does not break away from the utility model principle and scope, the utility model also can have various changes and modifications, and these variations and improvement all belong in the utility model scope of requirement protection.
The utility model requires protection domain to define with appending claims and other equivalent.
Claims (3)
1. a Control of Electric Vehicles circuit comprises power battery pack, lead, battery charger, drive motor controller, electric air-conditioning compressor, electric air-conditioning ptc heater, DC/DC conv, ignition lock, the baby battery of 12V12Ah, central controlled lock, Warning light; It is characterized in that: also be provided with emergency switch, DC contactor, be connected on the total insurance BF1 between the power battery pack and be connected on the anodal total insurance SF1 of power battery pack; Said emergency switch is arranged on the anodal output line of high-tension line; Said DC contactor is arranged on the anodal output line of high-tension line, and said baby battery is anodal to be connected in series with ignition lock, DC contactor, DC/DC conv successively.
2. Control of Electric Vehicles circuit as claimed in claim 1 is characterized in that: said baby battery and said central controlled lock, Warning light are connected in parallel.
3. according to claim 1 or claim 2 Control of Electric Vehicles circuit, it is characterized in that: also be provided with a diode, this diode is between the 12V of DC/DC conv out-put supply and baby battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120406960XU CN202294618U (en) | 2011-10-24 | 2011-10-24 | Control circuit for electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120406960XU CN202294618U (en) | 2011-10-24 | 2011-10-24 | Control circuit for electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202294618U true CN202294618U (en) | 2012-07-04 |
Family
ID=46363571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120406960XU Expired - Fee Related CN202294618U (en) | 2011-10-24 | 2011-10-24 | Control circuit for electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202294618U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109204060A (en) * | 2018-09-11 | 2019-01-15 | 河南森源鸿马电动汽车有限公司 | A kind of battery of electric vehicle group safety control |
-
2011
- 2011-10-24 CN CN201120406960XU patent/CN202294618U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109204060A (en) * | 2018-09-11 | 2019-01-15 | 河南森源鸿马电动汽车有限公司 | A kind of battery of electric vehicle group safety control |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20131024 |