CN219938024U - Single-power-supply multi-power output control circuit of electric vehicle - Google Patents
Single-power-supply multi-power output control circuit of electric vehicle Download PDFInfo
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- CN219938024U CN219938024U CN202320087467.9U CN202320087467U CN219938024U CN 219938024 U CN219938024 U CN 219938024U CN 202320087467 U CN202320087467 U CN 202320087467U CN 219938024 U CN219938024 U CN 219938024U
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- 238000012423 maintenance Methods 0.000 claims description 43
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- BNOODXBBXFZASF-UHFFFAOYSA-N [Na].[S] Chemical compound [Na].[S] BNOODXBBXFZASF-UHFFFAOYSA-N 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model relates to a single-power multi-power output control circuit of an electric vehicle, which comprises an automatic control circuit or a manual control circuit; the automatic control circuit comprises a first high-voltage power storage battery, a second high-voltage power storage battery, a first branch, a second branch, a third branch and an inverter; the first high-voltage power storage battery and the second high-voltage power storage battery are connected with the inverter through a first automatic control device or a first manual control device to form a first branch; the inverter is connected with the second high-voltage power storage battery through a third automatic control device or a third manual control device to form a third branch; the inverter is connected with the first high-voltage power storage battery through a second automatic control device or a second manual control device to form a second branch. Through the automatic control circuit and the manual control circuit, when a certain high-voltage power supply fails, manual or automatic switching can be performed, so that the normal use of the vehicle is ensured; meanwhile, the charging time is shortened, and the energy waste is avoided.
Description
Technical Field
The utility model relates to the technical field of new energy commercial automobiles, in particular to a single-power-supply multi-power output control circuit of an electric vehicle.
Background
When the electric automobile is in actual use, the high-voltage power supply (battery or super capacitor) is formed by combining a plurality of single bodies in series and in parallel, the prior battery technology is limited, the failure rate of the high-voltage power supply is far higher than that of the traditional internal combustion engine, and when one high-voltage power supply fails, the vehicle can not be normally used, and the running of a customer vehicle is influenced. Meanwhile, when the vehicle is charged, the defect of overlong charging time exists on one hand, and on the other hand, the internal resistance of the high-voltage power storage battery pack is overlarge, so that excessive energy waste caused by battery heating is caused.
Disclosure of Invention
The utility model provides a single-power-supply multi-power output control circuit of an electric vehicle, which can be manually or automatically switched when a certain high-voltage power supply fails through an automatic control circuit and a manual control circuit, so that the normal use of the vehicle is ensured; meanwhile, the charging time is shortened, and the energy waste is avoided.
In order to solve the problems in the background art, the utility model is realized by the following technical scheme:
a single-power multi-power output control circuit of an electric vehicle comprises an automatic control circuit or a manual control circuit; the automatic control circuit comprises a first high-voltage power storage battery, a second high-voltage power storage battery, a first branch, a second branch, a third branch and an inverter; the first high-voltage power storage battery and the second high-voltage power storage battery are connected with the inverter through a first automatic control device or a first manual control device to form the first branch; the inverter is connected with the second high-voltage power storage battery through a third automatic control device or a third manual control device to form a third branch; the inverter is connected with the first high-voltage power storage battery through a second automatic control device or a second manual control device to form a second branch.
Preferably, the first automatic control device is a high-voltage contactor A; the second automatic control device is a high-voltage contactor B; the third automatic control device is a high-voltage contactor C; one end of the inverter is connected with the anode of the first high-voltage power storage battery and one end of the high-voltage contactor C respectively; the other end of the inverter is connected with the negative electrode of the second high-voltage power storage battery and one end of the high-voltage contactor B respectively; the negative electrode of the first high-voltage power storage battery is connected with the positive electrode of the second high-voltage power storage battery through the high-voltage contactor A; the other end of the high-voltage contactor C is connected with the anode of the second high-voltage power storage battery; the other end of the high-voltage contactor B is connected with the negative electrode of the first high-voltage power storage battery.
Preferably, the first manual control device, the second manual control device and the third manual control device are a maintenance switch A, a maintenance switch B and a maintenance switch C which are respectively arranged outside the BMS control box; one end of the inverter is connected with the anode of the first high-voltage power storage battery and one end of the maintenance switch C respectively; the other end of the inverter is connected with the negative electrode of the second high-voltage power storage battery and one end of the maintenance switch B respectively; the negative electrode of the first high-voltage power storage battery is connected with the positive electrode of the second high-voltage power storage battery through the maintenance switch A; the other end of the maintenance switch C is connected with the anode of the second high-voltage power storage battery; and the other end of the maintenance switch B is connected with the negative electrode of the first high-voltage power storage battery.
Preferably, the maintenance switch a, the maintenance switch B and the maintenance switch C are respectively provided with a first socket and a first plug, a second socket and a second plug, and a third socket and a third plug.
Preferably, the first high-voltage power storage battery and the second high-voltage power storage battery are any one of a lead-acid battery, a nickel-based battery, a sodium-sulfur battery and a lithium-based battery.
Compared with the prior art, the utility model has the following beneficial technical effects:
by arranging the manual control circuit and the automatic control circuit, the situation that the vehicle cannot continue to run when a certain high-voltage power storage battery has serious faults is changed, and the reliability of the high-voltage power storage battery is improved; when in charging, the resistance parameter and acceptable charging current of the high-voltage power storage battery pack are changed through the transformation of a manual or automatic control circuit, so that the charging time is saved, and the internal resistance heating power loss of the high-voltage power storage battery pack is reduced.
Drawings
FIG. 1 is a schematic diagram of an automatic control state of the present utility model;
FIG. 2 is a schematic diagram of the manual control state of the present utility model;
description of the reference numerals
1. A first high-voltage power storage battery; 2. a second high voltage power storage battery; 3. a high-voltage contactor A; 4. a high-voltage contactor B; 5. a high-voltage contactor C; 6. an inverter; 7. maintaining the switch A; 8. maintenance switch B; 9. and maintaining the switch C.
Detailed Description
Example 1
As shown in fig. 1, a single-power-supply multi-power output control circuit of an electric vehicle comprises an automatic control circuit or a manual control circuit; the automatic control circuit comprises a first high-voltage power storage battery 1, a second high-voltage power storage battery 2, a first branch, a second branch, a third branch and an inverter 6; the first high-voltage power storage battery 1 and the second high-voltage power storage battery 2 are connected with the inverter 6 through a first automatic control device or a first manual control device to form a first branch; the inverter 6 is connected with the second high-voltage power storage battery 2 through a third automatic control device or a third manual control device to form a third branch; the inverter 6 is connected to the first high-voltage power battery 1 through a second automatic control device or a second manual control device to form a second branch.
The first automatic control device is a high-voltage contactor A3; the second automatic control device is a high-voltage contactor B4; the third automatic control device is a high-voltage contactor C5; one end of the inverter 6 is respectively connected with the positive electrode of the first high-voltage power storage battery 1 and one end of the high-voltage contactor C5; the other end of the inverter 6 is respectively connected with the negative electrode of the second high-voltage power storage battery 2 and one end of the high-voltage contactor B4; the negative electrode of the first high-voltage power storage battery 1 is connected with the positive electrode of the second high-voltage power storage battery 2 through a high-voltage contactor A3; the other end of the high-voltage contactor C5 is connected with the anode of the second high-voltage power storage battery 2; the other end of the high-voltage contactor B4 is connected with the negative electrode of the first high-voltage power storage battery 1; the high-voltage contactor A3, the high-voltage contactor B4 and the high-voltage contactor C5 are respectively connected with a controller arranged in the BMS control box.
In the initial state, the first high-voltage power storage battery 1 and the second high-voltage power storage battery 2 are connected in series with the inverter 6 through the high-voltage contactor A3 for power transmission; when the first high-voltage power storage battery 1 has serious faults, the first high-voltage power storage battery 1 with faults can be shielded by only switching on the high-voltage contactor C5 and switching on the corresponding loop, so that the normal output of the second high-voltage power storage battery 2 is ensured, and the power transmission to the inverter 6 is realized. Similarly, when the second high-voltage power storage battery 2 has serious faults, the faulty second high-voltage power storage battery 2 can be shielded by only switching on the high-voltage contactor B4 and switching on the corresponding loop, so that the normal output of the first high-voltage power storage battery 1 is ensured, and the power transmission to the inverter 6 is realized.
During charging, the high-voltage contactor A3 is controlled to be disconnected through the BMS controller, the high-voltage contactor B4 and the high-voltage contactor C5 are connected simultaneously, corresponding loops are connected, and the first high-voltage power storage battery 1 and the second high-voltage power storage battery 2 are converted from a serial state to a parallel state, so that the resistance parameters of the power storage battery pack and the acceptable charging current performance are changed.
Example 2
As shown in fig. 2, the first manual control device, the second manual control device and the third manual control device are a maintenance switch A7, a maintenance switch B8 and a maintenance switch C9 respectively, which are arranged outside the BMS control box; one end of the inverter 6 is connected with the anode of the first high-voltage power storage battery 1 and one end of the maintenance switch C9 respectively; the other end of the inverter 6 is respectively connected with the negative electrode of the second high-voltage power storage battery 2 and one end of the maintenance switch B8; the cathode of the first high-voltage power storage battery 1 is connected with the anode of the second high-voltage power storage battery 2 through a maintenance switch A7; the other end of the maintenance switch C9 is connected with the anode of the second high-voltage power storage battery 2; the other end of the maintenance switch B8 is connected with the cathode of the first high-voltage power storage battery 1.
The maintenance switch A7, the maintenance switch B8 and the maintenance switch C9 are respectively provided with a first socket and a first plug, a second socket and a second plug, and a third socket and a third plug.
In the initial state, the first high-voltage power storage battery 1 and the second high-voltage power storage battery 2 are connected in series with the inverter 6 through the maintenance switch A7 for power transmission; when the first high-voltage power storage battery 1 has serious faults, the first plug arranged on the maintenance switch A7 is pulled out from the first socket, the third plug arranged on the maintenance switch C9 is inserted into the third socket, the first high-voltage power storage battery 1 with faults can be shielded, the normal output of the second high-voltage power storage battery 2 is ensured, and the power transmission device is used for transmitting power to the inverter 6. Similarly, when the second high-voltage power storage battery 2 has serious faults, the first plug arranged on the maintenance switch A7 is pulled out from the first socket, the second plug arranged on the maintenance switch B8 is inserted into the second socket, the second high-voltage power storage battery 2 with faults can be shielded, normal output of the first high-voltage power storage battery 1 is ensured, and the power transmission to the inverter 6 is performed.
During charging, the first plug arranged on the maintenance switch A7 is pulled out from the first socket, meanwhile, the third plug arranged on the maintenance switch C9 is inserted into the third socket, the second plug arranged on the maintenance switch B8 is inserted into the second socket, the first high-voltage power storage battery 1 and the second high-voltage power storage battery 2 are converted into a parallel state from a serial state, and the resistance parameter and the acceptable charging current performance of the power storage battery pack are changed through the change of the plugging position of the external maintenance switch.
Example 3
The first high-voltage power storage battery 1 and the second high-voltage power storage battery 2 are any one of lead-acid batteries, nickel-based batteries, sodium-sulfur batteries and lithium-based batteries.
Claims (5)
1. The utility model provides an electric motor car single power multi-power output control circuit which characterized in that: comprises an automatic control circuit or a manual control circuit; the automatic control circuit comprises a first high-voltage power storage battery (1), a second high-voltage power storage battery (2), a first branch, a second branch, a third branch and an inverter (6); the first high-voltage power storage battery (1) and the second high-voltage power storage battery (2) are connected with the inverter (6) through a first automatic control device or a first manual control device to form the first branch; the inverter (6) is connected with the second high-voltage power storage battery (2) through a third automatic control device or a third manual control device to form a third branch; the inverter (6) is connected with the first high-voltage power storage battery (1) through a second automatic control device or a second manual control device to form a second branch.
2. The single-power-supply multi-power output control circuit of an electric vehicle according to claim 1, characterized in that the first automatic control device is a high-voltage contactor a (3); the second automatic control device is a high-voltage contactor B (4); the third automatic control device is a high-voltage contactor C (5); one end of the inverter (6) is connected with the positive electrode of the first high-voltage power storage battery (1) and one end of the high-voltage contactor C (5) respectively; the other end of the inverter (6) is connected with the negative electrode of the second high-voltage power storage battery (2) and one end of the high-voltage contactor B (4) respectively; the negative electrode of the first high-voltage power storage battery (1) is connected with the positive electrode of the second high-voltage power storage battery (2) through the high-voltage contactor A (3); the other end of the high-voltage contactor C (5) is connected with the positive electrode of the second high-voltage power storage battery (2); the other end of the high-voltage contactor B (4) is connected with the negative electrode of the first high-voltage power storage battery (1); the high-voltage contactor A (3), the high-voltage contactor B (4) and the high-voltage contactor C (5) are respectively connected with a controller arranged in the BMS control box.
3. The single-power-source multi-power output control circuit of the electric vehicle according to claim 2, wherein the first manual control device, the second manual control device and the third manual control device are a maintenance switch a (7), a maintenance switch B (8) and a maintenance switch C (9) which are arranged outside the BMS control box respectively; one end of the inverter (6) is respectively connected with the anode of the first high-voltage power storage battery (1) and one end of the maintenance switch C (9); the other end of the inverter (6) is connected with the negative electrode of the second high-voltage power storage battery (2) and one end of the maintenance switch B (8) respectively; the negative electrode of the first high-voltage power storage battery (1) is connected with the positive electrode of the second high-voltage power storage battery (2) through the maintenance switch A (7); the other end of the maintenance switch C (9) is connected with the anode of the second high-voltage power storage battery (2); the other end of the maintenance switch B (8) is connected with the negative electrode of the first high-voltage power storage battery (1).
4. The single-power-supply multi-power output control circuit of an electric vehicle according to claim 3, wherein the maintenance switch a (7), the maintenance switch B (8) and the maintenance switch C (9) are respectively provided with a first socket and a first plug, a second socket and a second plug, and a third socket and a third plug.
5. The single-power-supply multi-power output control circuit of the electric vehicle according to claim 1, wherein the first high-voltage power storage battery (1) and the second high-voltage power storage battery (2) are any one of a lead-acid battery, a nickel-based battery, a sodium-sulfur battery and a lithium-based battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320087467.9U CN219938024U (en) | 2023-01-30 | 2023-01-30 | Single-power-supply multi-power output control circuit of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320087467.9U CN219938024U (en) | 2023-01-30 | 2023-01-30 | Single-power-supply multi-power output control circuit of electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219938024U true CN219938024U (en) | 2023-10-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320087467.9U Active CN219938024U (en) | 2023-01-30 | 2023-01-30 | Single-power-supply multi-power output control circuit of electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219938024U (en) |
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2023
- 2023-01-30 CN CN202320087467.9U patent/CN219938024U/en active Active
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