CN203537055U - Double-power supply electric vehicle power switching circuit - Google Patents
Double-power supply electric vehicle power switching circuit Download PDFInfo
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- CN203537055U CN203537055U CN201320677206.9U CN201320677206U CN203537055U CN 203537055 U CN203537055 U CN 203537055U CN 201320677206 U CN201320677206 U CN 201320677206U CN 203537055 U CN203537055 U CN 203537055U
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- triode
- diode
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- chip microcomputer
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
The utility model discloses a double-power supply electric vehicle power switching circuit comprising a single-chip microcomputer, a relay KM1, a relay KM2, a resistor R9, a resistor R10, a single-pole double-throw switch S1, single-pole double-throw switch S2, a triode Q1, a triode Q2, a diode D1, and a diode D2. Before two battery packs are parallely connected together, the battery packs are respectively serially connected with a relay normally-opened contact, and the automatic switching of the two battery packs during the use can be realized by the single-chip microcomputer and the control circuit. By using the hand-operated switches, the hand-operated switching of the battery packs can be realized. When the two battery packs are exhausted, the two power supplies can be parallely connected together by the hand-operated switches, and can be used at the same time, and therefore the electric vehicle can still be driven to move for a certain distance.
Description
Technical field
The utility model relates to electric automobiles, is a kind of duplicate supply electric vehicle power sources commutation circuit specifically.
Background technology
electric motor car is as a kind of new forms of energy vehicles, because of it, to have price low, practical, the advantages such as use cost is low are very popular, but electric motor car industry is in China's development or primary stage, battery, automatically controlled and motor technology is also immature, causes electric motor car to also have very large defect at course continuation mileage and charging interval, to consumer, makes troubles.At present, electric motor car on market mostly adopts a large storage battery power supply, once but storage battery breaks down like this, electric motor car will be used, if strengthen battery capacity, will increase the heavy burden of electric motor car, make the stressed increasing in chassis, chassis intensity is had a significant impact, electric motor car is also because the increase of complete vehicle weight seems that motor power is not enough, manned or climbing is hard, and increased consumer purchase car cost; There is fewer companies that a standby storage battery of low capacity has been installed in electric motor car, if there is large storage battery, cast anchor, can open headstock car bonnet, large storage battery is pulled down, change standby little storage battery, but operation bothers very much like this, for some, is ignorant of the people of wiring, be easy to a line wrong, cause accident to occur.
Utility model content
The shortcoming existing in order to overcome above-mentioned prior art, the purpose of this utility model be to provide a kind of can auto switching electric source the manual duplicate supply electric vehicle power sources commutation circuit of Switching power again.
In order to address the above problem, the utility model is by the following technical solutions: a kind of duplicate supply electric vehicle power sources commutation circuit, it is characterized in that, it comprises a single-chip microcomputer, relay K M1, relay K M2, resistance R 9, resistance R 10, single-pole double-throw switch (SPDT) S1, single-pole double-throw switch (SPDT) S2, triode Q1, triode Q2, diode D1 and diode D2; After an output pin series resistance R9 of described single-chip microcomputer, be connected with the base stage b of triode Q1, at the reverse series diode D1 of the collector electrode c of triode Q1, relay coil KM1 is in parallel with diode D1; After another output pin series resistance R10 of described single-chip microcomputer, be connected with the base stage b of triode Q2, at the reverse series diode D2 of the collector electrode c of triode Q2, relay coil KM2 is in parallel with diode D2; The contact 1 of described single-pole double-throw switch (SPDT) S1 is connected with the input of relay K M1, and its contact 2 is connected with the negative electrode of diode D1 and the collector electrode c of triode Q1 respectively, and contact 3 is connected with power supply VCC; The contact 1 of described single-pole double-throw switch (SPDT) S2 is connected with the input of relay K M2, and its contact 2 is connected with the negative electrode of diode D2 and the collector electrode c of triode Q2 respectively, and contact 3 is connected with power supply VCC; Battery pack A and battery pack B are in parallel, and their positive pole links together after being connected in series respectively the normally opened contact of relay K M1 and relay K M2, then is connected in series with the power consumption equipment of electric motor car.
Preferably, described triode Q1 and Q2 are 8550PNP type triode.
Preferably, described single-chip microcomputer is AT89C52 single-chip microcomputer.
The beneficial effects of the utility model are: it was connected in series respectively a relay normally open and gets an electric shock before two Battery pack group parallel connections, by single-chip microcomputer and control circuit, have realized the automatic conversion in use of two battery pack; By hand switch, realized the switching of manually battery pack being used, in the situation that the electric weight of two battery pack is all finished, also can be by hand switch, two groups of power supplys are in parallel, use simultaneously, makes travel again stretch journey of electric motor car.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described further:
Fig. 1 is circuit diagram of the present utility model.
Embodiment
As shown in Figure 1, an execution mode of the present utility model comprises a single-chip microcomputer, relay K M1, relay K M2, resistance R 9, resistance R 10, single-pole double-throw switch (SPDT) S1, single-pole double-throw switch (SPDT) S2, triode Q1, triode Q2, diode D1 and diode D2; After an output pin series resistance R9 of described single-chip microcomputer, be connected with the base stage b of triode Q1, at the reverse series diode D1 of the collector electrode c of triode Q1, relay coil KM1 is in parallel with diode D1; After another output pin series resistance R10 of described single-chip microcomputer, be connected with the base stage b of triode Q2, at the reverse series diode D2 of the collector electrode c of triode Q2, relay coil KM2 is in parallel with diode D2; The intermediate contact 1 of described single-pole double-throw switch (SPDT) S1 is connected with the input of relay K M1, and its contact 2 is connected with the negative electrode of diode D1 and the collector electrode c of triode Q1 respectively, and contact 3 is connected with power supply VCC; The intermediate contact 1 of described single-pole double-throw switch (SPDT) S2 is connected with the input of relay K M2, and its contact 2 is connected with the negative electrode of diode D2 and the collector electrode c of triode Q2 respectively, and contact 3 is connected with power supply VCC; Battery pack A and battery pack B are in parallel, and their positive pole links together after being connected in series respectively the normally opened contact of relay K M1 and relay K M2, then is connected in series with the power consumption equipment of electric motor car.
Preferably, described triode Q1 and Q2 are 8550PNP type triode.
Preferably, described single-chip microcomputer is AT89C52 single-chip microcomputer.
Operation principle of the present utility model is: the P0.1 pin of single-chip microcomputer is accepted the signal that controller end is sent, after, according to signal, determine to connect battery pack A or battery pack B, if the tangible battery pack A of signal is finished and sends after electricity, single-chip microcomputer sends signal by pin P1.7 to the base stage b of triode Q2, and triode Q2 conducting is turn-offed Q1 by P1.6 pin simultaneously, after Q2 conducting, relay coil KM2 energising, its normally opened contact KM2 is closed, and battery pack B starts power supply.By single-pole double-throw switch (SPDT) S1 and S2, can not pass through automatic control circuit, directly the conversion of battery pack is used and controlled, if connect battery pack A by single-pole double-throw switch (SPDT) S1, the disconnecting link of single-pole double-throw switch (SPDT) S2 is put sky, otherwise the disconnecting link of single-pole double-throw switch (SPDT) S1 is put sky; Under auto transformation mode, when two Battery pack groups there all are not electricity, two switch S 1 and S2 all can be pressed, at this moment, battery pack A and B are in parallel to be used, and also can make electric motor car continuation of the journey a period of time.
The above is preferred implementation of the present utility model; for those skilled in the art; not departing under the prerequisite of the utility model principle, can also make some improvements and modifications, these improvements and modifications are also regarded as protection range of the present utility model.
Claims (3)
1. a duplicate supply electric vehicle power sources commutation circuit, it is characterized in that, it comprises a single-chip microcomputer, relay K M1, relay K M2, resistance R 9, resistance R 10, single-pole double-throw switch (SPDT) S1, single-pole double-throw switch (SPDT) S2, triode Q1, triode Q2, diode D1 and diode D2; After an output pin series resistance R9 of described single-chip microcomputer, be connected with the base stage b of triode Q1, at the reverse series diode D1 of the collector electrode c of triode Q1, relay coil KM1 is in parallel with diode D1; After another output pin series resistance R10 of described single-chip microcomputer, be connected with the base stage b of triode Q2, at the reverse series diode D2 of the collector electrode c of triode Q2, relay coil KM2 is in parallel with diode D2; The contact 1 of described single-pole double-throw switch (SPDT) S1 is connected with the input of relay K M1, and its contact 2 is connected with the negative electrode of diode D1 and the collector electrode c of triode Q1 respectively, and contact 3 is connected with power supply VCC; The contact 1 of described single-pole double-throw switch (SPDT) S2 is connected with the input of relay K M2, and its contact 2 is connected with the negative electrode of diode D2 and the collector electrode c of triode Q2 respectively, and contact 3 is connected with power supply VCC; Battery pack A and battery pack B are in parallel, and their positive pole links together after being connected in series respectively the normally opened contact of relay K M1 and relay K M2, then is connected in series with the power consumption equipment of electric motor car.
2. duplicate supply electric vehicle power sources commutation circuit according to claim 1, is characterized in that, described triode Q1 and Q2 are 8550PNP type triode.
3. duplicate supply electric vehicle power sources commutation circuit according to claim 1, is characterized in that, described single-chip microcomputer is AT89C52 single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320677206.9U CN203537055U (en) | 2013-10-31 | 2013-10-31 | Double-power supply electric vehicle power switching circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320677206.9U CN203537055U (en) | 2013-10-31 | 2013-10-31 | Double-power supply electric vehicle power switching circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203537055U true CN203537055U (en) | 2014-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320677206.9U Expired - Fee Related CN203537055U (en) | 2013-10-31 | 2013-10-31 | Double-power supply electric vehicle power switching circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203537055U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103532225A (en) * | 2013-10-31 | 2014-01-22 | 济南宏昌车辆有限公司 | Power switching circuit of dual-power electric car |
| CN104600816A (en) * | 2015-02-28 | 2015-05-06 | 厦门大学 | Portable inversion uninterruptible power supply |
| CN104709104A (en) * | 2015-02-09 | 2015-06-17 | 浙江吉利汽车研究院有限公司 | Method and system for rapidly switching battery packs of electric vehicle |
| CN113497477A (en) * | 2021-06-25 | 2021-10-12 | 际络科技(上海)有限公司 | Automatic-driving dual-power-supply control system and method |
-
2013
- 2013-10-31 CN CN201320677206.9U patent/CN203537055U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103532225A (en) * | 2013-10-31 | 2014-01-22 | 济南宏昌车辆有限公司 | Power switching circuit of dual-power electric car |
| CN104709104A (en) * | 2015-02-09 | 2015-06-17 | 浙江吉利汽车研究院有限公司 | Method and system for rapidly switching battery packs of electric vehicle |
| CN104600816A (en) * | 2015-02-28 | 2015-05-06 | 厦门大学 | Portable inversion uninterruptible power supply |
| CN113497477A (en) * | 2021-06-25 | 2021-10-12 | 际络科技(上海)有限公司 | Automatic-driving dual-power-supply control system and method |
| CN113497477B (en) * | 2021-06-25 | 2022-11-01 | 际络科技(上海)有限公司 | Automatic-driving dual-power-supply control system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20171031 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |