CN211089161U - Vehicle power supply circuit and vehicle - Google Patents
Vehicle power supply circuit and vehicle Download PDFInfo
- Publication number
- CN211089161U CN211089161U CN201921814582.1U CN201921814582U CN211089161U CN 211089161 U CN211089161 U CN 211089161U CN 201921814582 U CN201921814582 U CN 201921814582U CN 211089161 U CN211089161 U CN 211089161U
- Authority
- CN
- China
- Prior art keywords
- vehicle
- switch
- resistance wire
- power
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present disclosure relates to a vehicle power supply circuit and a vehicle, including: a battery, a first switch; the first switch is connected between the positive pole of the storage battery and the vehicle load in series, and the vehicle load and the negative pole of the storage battery are grounded; the vehicle charging system comprises a charging pile, a first switch, a second switch, a storage battery and a charging battery, wherein after the vehicle is connected with the charging pile and starts to be charged, the first switch is connected with an auxiliary power supply in the charging pile and can be automatically closed when the auxiliary power supply is connected, and the storage battery can supply power for a vehicle load under the condition that the first switch is closed. Like this, when connecting the rifle that charges and charging, the vehicle can be compatible 12V and the two kinds of auxiliary power supply's of 24V fill electric pile, need not the battery power master switch in the manual operation vehicle and for vehicle load power supply or outage moreover, but just can make the vehicle battery provide corresponding power for vehicle load automatically when connecting the rifle that charges, and the power of automatic disconnection vehicle load when the rifle that charges extracts, the security of vehicle charging has not only been guaranteed, user's charging operation has been made things convenient for moreover.
Description
Technical Field
The present disclosure relates to the field of vehicles, and in particular, to a vehicle power supply circuit and a vehicle.
Background
When the vehicle needs to be charged by the direct-current charging pile, the low-voltage manual power supply main switch connected with the storage battery needs to be kept closed, and the low-voltage storage battery is used for supplying power to the whole vehicle, so that the charging of the vehicle can be completed. And after the vehicle is charged, the low-voltage manual power supply main switch of the storage battery needs to be disconnected again so as to ensure the complete power failure of the whole vehicle and ensure the charging safety of the vehicle. However, in actual use, before some vehicles are connected with the charging gun for charging, the low-voltage manual power main switch connected with the storage battery needs to be disconnected in advance, and then the direct-current charging gun can be safely connected for charging the power battery.
Therefore, a vehicle user needs to disconnect the low-voltage manual power supply main switch firstly in the process of charging the vehicle by using the charging gun, then connect the charging gun, close the low-voltage manual power supply main switch after the charging gun is connected with the vehicle, keep the low-voltage manual power supply main switch closed in the charging process, and disconnect the low-voltage manual power supply main switch to perform power failure of the whole vehicle after the vehicle is charged. Therefore, the user needs to repeatedly operate the low-voltage manual power supply main switch in the vehicle charging process, and the charging safety of the vehicle is very complicated and cannot be guaranteed.
In addition, because the auxiliary power supply that present vehicle direct current fills electric pile can provide for the vehicle in the vehicle charging process has two kinds of voltages of 24V and 12V, but the voltage of the whole car low pressure power supply of vehicle is usually fixed, consequently, can only select the direct current that the voltage is suitable to fill electric pile and charge according to self low pressure supply voltage when present vehicle charges, and is very inconvenient.
SUMMERY OF THE UTILITY MODEL
The purpose of the disclosure is to provide a vehicle power supply circuit and a vehicle, which can realize the function of charging by connecting a charging gun under the condition that a power supply main switch of a storage battery in the vehicle is disconnected, and is convenient for charging operation of a user.
In order to achieve the above object, the present disclosure provides a power supply circuit for a vehicle, the power supply circuit including:
a battery, a first switch;
the first switch is connected in series between the positive pole of the storage battery and a vehicle load, and the vehicle load and the negative pole of the storage battery are grounded;
the vehicle charging system comprises a charging pile, a first switch, a second switch and a storage battery, wherein after the vehicle is connected with the charging pile and starts to be charged, the first switch is connected with an auxiliary power supply in the charging pile and can be automatically closed when the auxiliary power supply is connected, and the storage battery can supply power to a vehicle load under the condition that the first switch is closed.
Optionally, the vehicle load comprises: the power battery high-voltage box, the controller, the DC/DC power converter and other loads;
the first switch is connected with the power battery high-voltage box, the controller and the input end of the DC/DC power converter, and the output end of the DC/DC power converter is connected with other loads;
wherein the controller is capable of controlling the DC/DC power converter to convert a first voltage in the high-voltage box of the power battery into a second voltage after receiving the voltage from the storage battery, and outputting the second voltage to the other loads, wherein the second voltage is smaller than the first voltage;
the controller may be further configured to control the DC/DC power converter to stop outputting the second voltage after the vehicle charging is completed.
Optionally, the output end of the DC/DC power converter is further connected to the input end of the DC/DC power converter, so that the second voltage output by the DC/DC power converter can also continuously supply power to the power battery high-voltage box, the controller and the DC/DC power converter.
Optionally, the first switch is a relay switch.
Optionally, the power supply circuit further includes a first diode connected in parallel across the first switch.
Optionally, the power supply circuit further comprises a first resistance wire to a sixth resistance wire,
one end of the first resistance wire is connected with the first switch, the other end of the first resistance wire is connected with the storage battery,
one end of the second resistance wire is connected with the output end of the DC/DC power supply converter and the other loads, the other end of the second resistance wire is connected with the first switch and one end of the third resistance wire,
the first switch and the third resistance wire are connected in series and then are respectively connected with the power battery high-voltage box, the controller and the input end of the DC/DC power converter,
the fourth resistance wire is also connected in series between the third resistance wire and the power battery high-voltage box, the fifth resistance wire is also connected in series between the third resistance wire and the controller, and the sixth resistance wire is also connected in series between the third resistance wire and the input end of the DC/DC power converter.
Optionally, the power supply circuit further comprises a second diode and a third diode,
the second diode is connected in series between the first resistance wire and the first switch, the anode of the second diode is connected with the first resistance wire, the cathode of the second diode is connected with the first switch, the anode of the third diode is connected with the second resistance wire, the cathode of the third diode is connected with the first switch and the third resistance wire,
the second diode is used for protecting the first resistance wire, and the third diode is used for protecting the second resistance wire.
Optionally, the controller is a vehicle control unit VCU.
Optionally, the first diode is a zener diode.
The present disclosure also provides a vehicle including the above power supply circuit.
Through the technical scheme, the first switch can be automatically closed after the vehicle is connected with the auxiliary power supply in the charging pile, and whether the voltage of the auxiliary power supply is 12V or 24V, the first switch can be closed, so that the accumulator connected to the first switch can provide the vehicle load with a suitable power supply, and, in this way, when the charging gun is connected for charging, the vehicle can be compatible with the charging pile of two auxiliary power supplies of 12V and 24V, and the main switch of the storage battery power supply in the vehicle does not need to be manually operated to supply or cut off the power to the load of the vehicle, but automatically enables the vehicle battery to provide a corresponding power source for the vehicle load when the charging gun is connected, and when the charging gun is pulled out, the power supply of the vehicle load is automatically disconnected, so that the charging safety of the vehicle is ensured, and the charging operation of a user is facilitated.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
FIG. 1 is a circuit schematic of a vehicle power supply circuit shown in accordance with an exemplary embodiment of the present disclosure.
FIG. 2 is a schematic circuit diagram of a vehicle low-voltage power supply circuit in the prior art
FIG. 3 is a circuit schematic of a vehicle power supply circuit shown in accordance with yet another exemplary embodiment of the present disclosure.
FIG. 4 is a circuit schematic of a vehicle power supply circuit shown in accordance with yet another exemplary embodiment of the present disclosure.
FIG. 5 is a circuit schematic of a vehicle power supply circuit shown in accordance with yet another exemplary embodiment of the present disclosure.
FIG. 6 is a circuit schematic of a vehicle power supply circuit shown in accordance with yet another exemplary embodiment of the present disclosure.
Description of the reference numerals
1 accumulator 2 first switch
3 second switch 4 auxiliary power supply
5 vehicle load 6 power battery high-pressure box
7 controller 8 DC/DC power converter
9 other loads
Input terminal of 81 DC/DC power converter
Output terminal of 82 DC/DC power converter
F1 first resistance wire F2 second resistance wire
F3 third resistance wire F4 fourth resistance wire
F5 fifth resistance wire F6 sixth resistance wire
D1 first diode D2 second diode
D3 third diode
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
FIG. 1 is a circuit schematic of a vehicle power supply circuit shown in accordance with an exemplary embodiment of the present disclosure. As shown in fig. 1, the power supply circuit includes: a battery 1, a first switch 2; the first switch 2 is connected in series between the positive pole of the battery 1 and a vehicle load 5, and the vehicle load 5 and the negative pole of the battery 1 are grounded; after a vehicle is connected with a charging pile to start charging, the first switch 2 is connected with an auxiliary power supply 4 in the charging pile and can be automatically closed when the auxiliary power supply 4 is connected, and the storage battery 1 can supply power to the vehicle load 5 under the condition that the first switch 2 is closed.
The voltage of the battery 1 can be set according to the voltage required by the vehicle itself, for example, the entire low-voltage power supply voltage of most vehicles is 24V at present, so the voltage of the battery 1 can be set to 24V.
The first switch 2 may be any type of switch, as long as it can be turned off before the auxiliary power supply 4 in the charging pile is turned on, and the first switch 2 can be automatically turned on after the auxiliary power supply 4 in the charging pile is turned on, and no matter what the voltage of the auxiliary power supply 4 in the charging pile is, the first switch 2 can be turned on automatically after the auxiliary power supply 4 in the charging pile is turned on, for example, the voltage of the auxiliary power supply 4 in the charging pile may be 24V in the early stage, or may be 12V which is common now.
Fig. 2 shows a circuit schematic of a vehicle low-voltage power supply circuit in the prior art for comparison with the circuit schematic of the power supply circuit shown in fig. 1 according to the present disclosure. As shown in fig. 2, the second switch 3 is a low-voltage flashlight power supply main switch, and is connected in series between the vehicle load 5 and the storage battery 1, in the vehicle charging process, the second switch 3 can only be manually turned on and off by a user, so that the power supply of the storage battery to the vehicle load and the power failure of the whole vehicle can be realized, and in fig. 1, the first switch 1 can be automatically turned on and off according to the connection state of the charging gun, that is, the connection state of the auxiliary power supply 4 in the charging pile, so that the manual operation of the user is not needed.
Through the technical scheme, the first switch can be automatically closed after the vehicle is connected with the auxiliary power supply on the charging pile, and whether the voltage of the auxiliary power supply is 12V or 24V, the first switch can be closed, so that the accumulator connected to the first switch can provide the vehicle load with a suitable power supply, and, in this way, when the charging gun is connected for charging, the vehicle can be compatible with the charging pile of two auxiliary power supplies of 12V and 24V, and the main switch of the storage battery power supply in the vehicle does not need to be manually operated to supply or cut off the power to the load of the vehicle, but automatically enables the vehicle battery to provide a corresponding power source for the vehicle load when the charging gun is connected, and when the charging gun is pulled out, the power supply of the vehicle load is automatically disconnected, so that the charging safety of the vehicle is ensured, and the charging operation of a user is facilitated.
FIG. 3 is a circuit schematic of a vehicle power supply circuit shown in accordance with yet another exemplary embodiment of the present disclosure. As shown in fig. 3, the vehicle load 5 includes: a power battery high-voltage box 6, a controller 7, a DC/DC power converter 8 and other loads 9; the first switch 2 is connected with the power battery high-voltage box 6, the controller 7 and the input end 81 of the DC/DC power converter 8, and the output end 82 of the DC/DC power converter 8 is connected with the other loads 9; wherein the controller 7 is capable of controlling the DC/DC power converter 8 to convert a first voltage in the power battery high-voltage box 6 into a second voltage which is smaller than the first voltage and output to the other load 9 after receiving the voltage from the storage battery 1; the controller 7 is also capable of controlling the DC/DC power converter 8 to stop outputting the second voltage after the vehicle charging is completed.
When the first switch 2 is closed, the storage battery 1 can provide a starting voltage for the power battery high-voltage box 6, the controller 7 and the DC/DC power converter 8, so that the controller 7 controls the DC/DC power converter 8 to convert the voltage of the power battery in the power battery high-voltage box 6, i.e. the first voltage, into a second voltage to be output to the other loads 9, so that the second voltage output by the DC/DC power converter 8 can supply power to the other loads 9 in the vehicle after receiving the starting voltage of the storage battery 1. The second voltage may be the same as the voltage of the battery 1 so as to satisfy the condition that the voltage for supplying power to the vehicle load 5 is the same, for example, when the entire low-voltage power supply voltage of the vehicle needs to be 24V, the voltage of the battery 1 may be 24V, and the second voltage output by the DC/DC power converter 8 may also be 24V.
In addition, in a possible embodiment, the storage battery 1 can also provide starting voltage for other elements besides the power battery high-voltage box 6, the controller 7 and the DC/DC power converter 8, and the specific element type can be determined according to the actual conditions of the vehicle, as long as the DC/DC power converter 8 can convert the first voltage of the power battery in the power battery high-voltage box 6 into the second voltage to be output to other loads 9 in the vehicle for supplying power.
In a possible embodiment, as shown in fig. 4, the output 82 of the DC/DC power converter 8 may be further connected to the input 81 of the DC/DC power converter 8, so that the second voltage output by the DC/DC power converter 8 can also continuously supply power to the power battery high-voltage box 6, the controller 7 and the DC/DC power converter 8. Thus, after the second voltage is output, not only can power other loads 9 in the vehicle, but also the storage battery 1 can be assisted to power the power battery high-voltage box 6, the controller 7 and the DC/DC power converter 8, so that the situation that the storage battery 1 is always powered and the storage battery 1 is lack of power under the condition that the time consumed in the vehicle charging process is too long can be avoided.
FIG. 5 is a circuit schematic of a vehicle power supply circuit shown in accordance with yet another exemplary embodiment of the present disclosure. As shown in fig. 5, the first switch 2 is a relay switch. The first switch 2 may be another type of switch as long as it can realize the function of being closed when the auxiliary power supply 4 in the charging pile is turned on, and the specific switch type of the first switch 2 is not limited in this disclosure.
In a possible implementation, as shown in fig. 5, the power supply circuit further includes a first diode D1, and the first diode D1 is connected in parallel across the first switch 2. The first diode D1 may be a zener diode, and specifically, the first diode D1 may be a bidirectional regulator. In the case where the first switch 2 is a relay switch, the zener diode connected in parallel across the first switch 2 can prevent the coil in the relay switch from generating a pulse voltage when de-energized, which affects other components in the circuit.
In a possible embodiment, as shown in fig. 5, the power supply circuit further includes a first resistance wire F1 to a sixth resistance wire F6, one end of the first resistance wire F1 is connected to the first switch 2, the other end is connected to the battery 1, one end of the second resistance wire F2 is connected to the output end 82 of the DC/DC power converter 8 and the other load 9, the other end is connected to the first switch 2 and one end of the third resistance wire F3, the first switch 2 and the third resistance wire F3 are connected in series and then are respectively connected to the power battery high voltage box 6, the controller 7 and the input end 81 of the DC/DC power converter 8, the fourth resistance wire F4 is further connected in series between the third resistance wire F3 and the power battery high voltage box 6, the fifth resistance wire F5 is further connected in series between the third resistance wire F3 and the controller 7, the sixth resistance wire F6 is also connected in series between the third resistance wire F3 and the input end 81 of the DC/DC power converter 8.
When the voltage of the battery 1 is 24V, the specifications of the first resistance wire F1, the second resistance wire F2 and the third resistance wire F3 are preferably 30A, and the specifications of the fourth resistance wire F4, the fifth resistance wire F5 and the sixth resistance wire F6 are preferably 10A.
In a possible embodiment, as shown in fig. 5, the power supply circuit further includes a second diode D2 and a third diode D3, the second diode D2 is connected in series between the first resistance wire F1 and the first switch 2, the anode of the second diode D2 is connected to the first resistance wire F1, the cathode of the second diode D2 is connected to the first switch 2, the anode of the third diode D3 is connected to the second resistance wire F2, and the cathode of the third diode D3 is connected to the first switch 2 and the third resistance wire F3. The second diode D2 is used for protecting the first resistance wire F1, and the third diode D3 is used for protecting the second resistance wire F2. The second diode D2 can prevent the second voltage output by the DC/DC power converter 8 from entering the battery 1 in series when the first switch 2 is closed, which may cause the problem that the first resistance wire F1 and the second resistance wire F2 are burned due to excessive current. The third diode D3 can prevent the voltage of the battery 1 from entering the load 9 in series when the first switch 2 is closed, which causes the problem that the first resistance wire F1 and the second resistance wire F2 are burned.
Further, the controller 7 may be configured to control the DC/DC power converter 8 to stop outputting the second voltage after the vehicle charging is completed. Therefore, according to the circuit diagram shown in fig. 5, when the power battery is fully charged, the controller 7 can control the DC/DC power converter 8 to stop outputting the second voltage, and at this time, except for the power battery high-voltage box 6, the controller 7 and the DC/DC power converter 8, the power of other loads 9 on the vehicle is blocked and cut off by the third diode D3, so that even if the other loads 9 in the vehicle are powered off after the power battery is charged, the power of the remaining power battery high-voltage box 6, the controller 7 and the DC/DC power converter 8, i.e. the storage battery 1, can be cut off in time when the first switch 1 is disconnected from the auxiliary power supply 4 in the charging pile, i.e. the power of the power battery high-voltage box 6, the controller 7 and the DC/DC power converter 8 can be cut off in time after the charging gun is pulled out, thereby realizing the function of powering off all the vehicle loads 5.
Through the technical scheme, after the vehicle charging process is finished, the power supplies of all vehicle loads 5 do not need to be manually disconnected, and the user can realize the power-off operation of all the vehicle loads by directly pulling the charging gun out of the vehicle.
In this possible real-time mode, the controller 7 is a vehicle control unit VCU. The vehicle control unit VCU may control the DC/DC power converter 8 through, for example, a vehicle control Area Network CAN (CAN) Network.
FIG. 6 illustrates a circuit schematic of a vehicle supply circuit according to yet another exemplary embodiment of the present disclosure. As shown in fig. 6, the power supply circuit further includes a second switch 3, and the second switch 3 is the above-mentioned low-voltage manual power main switch. One end of the second switch 3 is connected with the storage battery 1 and the first resistance wire F1, and the other end is connected with the second resistance wire F2, the output end 82 of the DC/DC power converter 8 and the other loads 9. Thus, in the case where the first switch 2 is normally operated, the second switch 3 can be kept in the off state at all times without being operated by the user. However, in the case that the first switch 2 fails to close, the user can still perform the operations of manually closing and opening the second switch 3 to achieve the successful charging of the vehicle, and manually ensure the safety of the vehicle charging process.
The present disclosure also provides a vehicle including the above power supply circuit.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (10)
1. A vehicle power supply circuit, characterized in that the power supply circuit comprises:
a battery (1), a first switch (2);
the first switch (2) is connected in series between the positive pole of the battery (1) and a vehicle load (5), and the vehicle load (5) and the negative pole of the battery (1) are grounded;
after a vehicle is connected with a charging pile to start charging, the first switch (2) is connected with an auxiliary power supply (4) in the charging pile and can be automatically closed when the auxiliary power supply (4) is connected, and the storage battery (1) can supply power to the vehicle load (5) under the condition that the first switch (2) is closed.
2. Supply circuit according to claim 1, characterized in that the vehicle load (5) comprises: the power battery high-voltage box (6), the controller (7), the DC/DC power converter (8) and other loads (9);
the first switch (2) is connected with the power battery high-voltage box (6), the controller (7) and an input end (81) of the DC/DC power converter (8), and an output end (82) of the DC/DC power converter (8) is connected with the other loads (9);
wherein the controller (7) is capable of controlling the DC/DC power converter (8) to convert a first voltage in the power battery high-voltage box (6) into a second voltage which is smaller than the first voltage and output to the other loads (9) after receiving the voltage from the storage battery (1);
the controller (7) is further capable of controlling the DC/DC power converter (8) to stop outputting the second voltage after the vehicle charging is completed.
3. The supply circuit according to claim 2, characterized in that the output (82) of the DC/DC power converter (8) is further connected to the input (81) of the DC/DC power converter (8) so that the second voltage output by the DC/DC power converter (8) can also continuously supply the power battery high voltage box (6), the controller (7) and the DC/DC power converter (8).
4. Supply circuit according to any of claims 1 to 3, characterized in that the first switch (2) is a relay switch.
5. Supply circuit according to claim 4, characterized in that it further comprises a first diode (D1), the first diode (D1) being connected in parallel across the first switch (2).
6. The supply circuit according to claim 3, characterized in that it further comprises a first to a sixth resistance wire (F1, F6),
one end of the first resistance wire (F1) is connected with the first switch (2), the other end is connected with the storage battery (1),
one end of the second resistance wire (F2) is connected with the output end (82) of the DC/DC power converter (8) and the other loads (9), the other end is connected with one end of the first switch (2) and one end of the third resistance wire (F3),
the first switch (2) and the third resistance wire (F3) are connected in series and then are respectively connected with the power battery high-voltage box (6), the controller (7) and the input end (81) of the DC/DC power converter (8),
the fourth resistance wire (F4) is also connected in series between the third resistance wire (F3) and the power battery high-voltage box (6), the fifth resistance wire (F5) is also connected in series between the third resistance wire (F3) and the controller (7), and the sixth resistance wire (F6) is also connected in series between the third resistance wire (F3) and the input end (81) of the DC/DC power converter (8).
7. The supply circuit according to claim 6, characterized in that the supply circuit further comprises a second diode (D2) and a third diode (D3),
the second diode (D2) is connected in series between the first resistance wire (F1) and the first switch (2), the anode of the second diode (D2) is connected with the first resistance wire (F1), the cathode of the second diode (D2) is connected with the first switch (2), the anode of the third diode (D3) is connected with the second resistance wire (F2), the cathode of the third diode (D3) is connected with the first switch (2) and the third resistance wire (F3),
the second diode (D2) is used for protecting the first resistance wire (F1), and the third diode (D3) is used for protecting the second resistance wire (F2).
8. Supply circuit according to one of claims 2-3 and 6-7, characterized in that the controller (7) is a vehicle control unit VCU.
9. The supply circuit according to claim 5, characterized in that the first diode (D1) is a zener diode.
10. A vehicle, characterized in that it comprises a supply circuit according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921814582.1U CN211089161U (en) | 2019-10-24 | 2019-10-24 | Vehicle power supply circuit and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921814582.1U CN211089161U (en) | 2019-10-24 | 2019-10-24 | Vehicle power supply circuit and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211089161U true CN211089161U (en) | 2020-07-24 |
Family
ID=71623480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921814582.1U Active CN211089161U (en) | 2019-10-24 | 2019-10-24 | Vehicle power supply circuit and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211089161U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114932874A (en) * | 2022-06-10 | 2022-08-23 | 中通客车股份有限公司 | New-energy commercial vehicle power supply control circuit and working method thereof |
-
2019
- 2019-10-24 CN CN201921814582.1U patent/CN211089161U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114932874A (en) * | 2022-06-10 | 2022-08-23 | 中通客车股份有限公司 | New-energy commercial vehicle power supply control circuit and working method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3334003B1 (en) | Charging system and method thereof | |
| KR101448774B1 (en) | System and method for power supply of on board charger | |
| US9768639B2 (en) | Vehicle-mounted power source device | |
| KR101866037B1 (en) | Battery management system for vehicle | |
| KR20120062956A (en) | High voltage system of electric vehicles | |
| US10110055B2 (en) | Fast charging high energy storage capacitor system jump starter | |
| CN105150866A (en) | Electric charging method for a vehicle and electric vehicle charging device | |
| CN108233496B (en) | Vehicle charger | |
| CN106981914A (en) | A kind of vehicle-mounted energy control method and system based on double cell | |
| CN211089161U (en) | Vehicle power supply circuit and vehicle | |
| CN116572767A (en) | Charging and discharging control method and control system | |
| US10894480B2 (en) | Supplying of low-voltage on-board electrical systems of vehicles having an electric drive | |
| CN211567861U (en) | Automatic power supply device for storage battery of electric vehicle | |
| CN112937304A (en) | Electric motor car low-voltage storage battery insufficient voltage's starting system | |
| CN114649859B (en) | Expandable energy storage system and expansion method thereof | |
| KR20170137234A (en) | An apparatus for testing battery charge and discharge | |
| CN111231669B (en) | Vehicle-mounted charger, power supply system of electric vehicle and electric vehicle | |
| CN112208381B (en) | New energy automobile charging system control circuit and control method | |
| CN211308268U (en) | Electric automobile and direct current charging circuit and fill electric pile thereof | |
| KR102338378B1 (en) | Battery charging system of vehicle | |
| US9713960B2 (en) | On-board charger housekeeping power supply with automatic source transition | |
| CN110518671B (en) | Charger and discharging method thereof | |
| CN112751352A (en) | Auxiliary power supply module for bidirectional direct current charger and auxiliary power supply method | |
| JP2016182014A (en) | Power Conditioner | |
| CN111049227A (en) | Pre-charging circuit and charging method for motor controller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |