CN220785471U - Charging control system and vehicle - Google Patents
Charging control system and vehicle Download PDFInfo
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- CN220785471U CN220785471U CN202321990746.2U CN202321990746U CN220785471U CN 220785471 U CN220785471 U CN 220785471U CN 202321990746 U CN202321990746 U CN 202321990746U CN 220785471 U CN220785471 U CN 220785471U
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 136
- 238000007599 discharging Methods 0.000 claims abstract description 11
- 238000002955 isolation Methods 0.000 claims description 38
- 238000004804 winding Methods 0.000 claims description 19
- 230000010354 integration Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
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- DNTFEAHNXKUSKQ-RFZPGFLSSA-N (1r,2r)-2-aminocyclopentane-1-sulfonic acid Chemical compound N[C@@H]1CCC[C@H]1S(O)(=O)=O DNTFEAHNXKUSKQ-RFZPGFLSSA-N 0.000 description 1
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Abstract
The utility model relates to the technical field of charging, in particular to a charging control system and a vehicle. The system comprises a low-voltage discharging circuit and a boosting circuit; the low-voltage discharging circuit comprises a low-voltage secondary side conversion circuit, and the low-voltage secondary side conversion circuit is connected with a low-voltage load port of the system through the voltage boosting circuit. According to the system provided by the utility model, the problem of relatively fixed device type selection in the low-voltage discharge circuit can be solved, and a wider device type selection range can be obtained.
Description
Technical Field
The utility model relates to the technical field of charging, in particular to a charging control system and a vehicle.
Background
In an electric vehicle, a low voltage discharge circuit is used to receive the output of a battery and input the output into a low voltage load port to power a low voltage load device. At present, the low-voltage discharge circuit needs to be designed according to the battery voltage and the rated voltage of low-voltage load equipment, and the selection of various devices in the low-voltage discharge circuit is limited.
Disclosure of Invention
An object of the present utility model is to solve the problem of relatively fixed device selection in low-voltage discharge circuits.
According to an aspect of the present utility model, there is provided a charge control system including: a low-voltage discharge circuit and a boost circuit; the low-voltage discharging circuit comprises a low-voltage secondary side conversion circuit, and the low-voltage secondary side conversion circuit is connected with a low-voltage load port of the system through the voltage boosting circuit.
Optionally, the system further comprises an ac charging circuit comprising an isolation conversion circuit and a high voltage secondary side conversion circuit, the low voltage secondary side conversion circuit being coupled to the isolation conversion circuit, the high voltage secondary side conversion circuit being connected to a battery port of the system.
Optionally, the alternating current charging circuit further comprises a power factor correction circuit and a high-voltage primary side conversion circuit; the power factor correction circuit, the high-voltage primary side conversion circuit, the isolation conversion circuit and the high-voltage secondary side conversion circuit are sequentially connected; the high-voltage primary side conversion circuit is connected with a primary side winding of the isolation conversion circuit, and the high-voltage secondary side conversion circuit is connected with a first secondary side winding of the isolation conversion circuit; the power factor correction circuit is connected with an alternating current charging port of the system.
Optionally, the low voltage secondary side conversion circuit is coupled with the isolation conversion circuit, comprising: the low-voltage secondary side conversion circuit is connected with a second secondary side winding of the isolation conversion circuit.
Optionally, an output end of the boost circuit is connected with a low-voltage load port of the system, and an input end of the boost circuit is connected with the low-voltage secondary side conversion circuit.
Optionally, the boost circuit includes a first inductor and a first bridge arm, the first inductor is connected to a bridge arm midpoint of the first bridge arm, and two ends of the first bridge arm are respectively connected with the positive pole and the negative pole of the low-voltage load port.
Optionally, the boost circuit is configured to: and after the output voltage of the low-voltage secondary side conversion circuit is increased, the output voltage is input to the low-voltage load port.
Optionally, the low voltage secondary side conversion circuit is configured to receive an output of the high voltage primary side conversion circuit or the high voltage secondary side conversion circuit to power a low voltage load device.
Optionally, the low-voltage secondary side conversion circuit comprises one of a full-wave rectification circuit, a double-current rectification circuit and a full-bridge rectification circuit; and the input end of the full-wave rectifying circuit, the current doubling rectifying circuit or the full-bridge rectifying circuit is coupled with the isolation conversion circuit, and the output end of the full-wave rectifying circuit, the current doubling rectifying circuit or the full-bridge rectifying circuit is connected with a low-voltage load port of the system.
Optionally, the system is configured to implement at least one of the following modes of operation under control of the control circuit: an alternating current charging mode; corresponding to the alternating current charging mode, the alternating current charging circuit is configured to convert external alternating current into direct current and charge a battery; an inversion discharge mode; the alternating current charging circuit is configured to convert direct current input by the battery into alternating current and then supply power to external equipment corresponding to the inversion discharging mode; a low voltage discharge mode; the low-voltage secondary side conversion circuit is configured to output direct current output from the battery to the boost circuit through the alternating current charging circuit to supply power to a low-voltage load device, corresponding to the low-voltage discharge mode; alternatively, the low-voltage secondary side conversion circuit is configured to output an external alternating current to the step-up circuit through the alternating current charging circuit to supply power to the low-voltage load device.
Optionally, the ac charging circuit is further configured to: and outputting external alternating current or direct current of a battery to the low-voltage secondary side conversion circuit through the isolation conversion circuit.
According to a second aspect of the present utility model, there is provided a vehicle comprising a power battery and a charge control system as in any one of the first aspects;
the power battery is connected with a battery port of the charging control system.
The utility model has the technical effect of providing a novel charging control system, and connecting a low-voltage secondary side conversion circuit with a low-voltage load port through a boost circuit. In this way, the output of the low-voltage secondary side conversion circuit can be regulated by the boost circuit to obtain the same output to normally supply power to the low-voltage load equipment. On the basis of not influencing normal power supply, devices in the low-voltage discharge circuit do not need to be set aiming at rated voltage of low-voltage load equipment, a wider device type selection range is obtained, and the flexibility of system setting is improved.
Other features of the present utility model and its advantages will become apparent from the following detailed description of exemplary embodiments of the utility model, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model.
FIG. 1 is a block diagram of a charge control system according to one embodiment;
FIG. 2 is a circuit diagram of a charge control system according to one embodiment;
the reference numerals:
a charge control system 1000;
an alternating current charging circuit; a power factor correction circuit 130; a high voltage primary side conversion circuit 140; an isolation switching circuit 120; a high voltage secondary side conversion circuit 110;
a booster circuit 400; a first inductance L1; a first leg 1; a low voltage discharge circuit 200 and a low voltage secondary side conversion circuit 230.
Detailed Description
Various exemplary embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses.
Techniques and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
Referring to fig. 1, a charge control system 1000 of an embodiment of the present disclosure is illustrated.
The utility model discloses a charge control system 1000, a low-voltage discharge circuit 200 and a boost circuit 400; the low voltage discharge circuit 200 includes a low voltage secondary side conversion circuit 230 that is connected to a low voltage load port of the system via a boost circuit 400.
In one example, the low voltage discharge circuit 200 may include a low voltage primary side conversion circuit, a low voltage isolation conversion circuit, and a low voltage secondary side conversion circuit 230, which are sequentially connected. The low-voltage discharging circuit is used for adjusting the voltage of direct current and outputting the direct current to the low-voltage load port for low-voltage load. The low voltage load port may be connected to a low voltage battery, or other load device, to power the low voltage of the entire vehicle when the low voltage discharge circuit is in the vehicle. Meanwhile, the low-voltage isolation conversion circuit is used for electrically isolating the low-voltage end from the high-voltage end, so that load equipment or devices of the low-voltage end cannot be affected when the high-voltage end fails.
In one example, the output of the boost circuit 400 is connected to a low voltage load port of the system, and the input of the boost circuit 400 is connected to the low voltage secondary side conversion circuit 230.
In one example, the boost circuit 400 includes a first inductor L1 and a first bridge arm 1, where the first inductor L1 is connected to a bridge arm midpoint of the first bridge arm 1, and two ends of the first bridge arm 1 are respectively connected with an anode and a cathode of the low voltage load port.
As shown in fig. 2, the boost circuit 400 includes a first inductor L1 and a first bridge arm 1, where the first bridge arm 1 may include two switching tubes, and the first inductor L1 may be connected at a midpoint of the first bridge arm 1, that is, between the two switching tubes of the bridge arm. The boost circuit 400 is connected to the low-voltage load port, and includes two end points of the first bridge arm, which are respectively connected to the positive and negative poles of the low-voltage load port.
In one example, the boost circuit 400 is configured to boost the output voltage of the low voltage secondary side conversion circuit 230 and then input the boosted voltage to the low voltage load port.
In this example, the boost circuit may boost the output voltage of the low voltage secondary side conversion circuit and input to the low voltage load port to power the low voltage load device. The device in the low-voltage secondary side conversion circuit can select a relatively cheap device with lower rated voltage when the device is selected, so that the cost is reduced.
In this example, a new charge control system is provided that connects a low voltage secondary side conversion circuit to a low voltage load port through a boost circuit. In this way, the output of the low-voltage secondary side conversion circuit can be regulated by the boost circuit to obtain the same output to normally supply power to the low-voltage load equipment. On the basis of not influencing normal power supply, devices in the low-voltage discharge circuit do not need to be set aiming at rated voltage of low-voltage load equipment, a wider device type selection range is obtained, and the flexibility of system setting is improved.
In one example, the system 1000 further includes an ac charging circuit including an isolated switching circuit 120 and a high voltage secondary switching circuit 110; the low voltage secondary side conversion circuit 230 is coupled to the isolation conversion circuit 120 and the high voltage secondary side conversion circuit 110 is connected to the battery port of the system.
The battery port of the system 1000 is for connection to a battery and the ac charging port is for connection to an external device. When the system 1000 is applied to a vehicle, the battery port is connected with a power battery of the vehicle, and when the system 1000 is applied to the vehicle, the external device connected with the ac charging port may be a power source or electric equipment outside the system 1000, for example, may be a charging pile, vehicle-mounted ac electric equipment or other vehicles.
In the case of an external device as a power source, the ac charging circuit is used to convert ac power output from the external device into dc power and charge the power battery. In the case of a power battery as a power source, the ac charging circuit is used to convert dc power output from the power battery into ac power and discharge the ac power to an external device.
In one example, the ac charging circuit further includes a power factor correction circuit 130 and a high voltage primary side conversion circuit 140; the power factor correction circuit 130, the high-voltage primary side conversion circuit 140, the isolation conversion circuit 120 and the high-voltage secondary side conversion circuit 110 are sequentially connected; the high-voltage primary side conversion circuit 140 is connected with the primary side winding of the isolation conversion circuit 120, and the high-voltage secondary side conversion circuit 110 is connected with the first secondary side winding of the isolation conversion circuit 120; the power factor correction circuit 130 is connected to the ac charging port of the system.
In one example, the ac charging circuit may include a power factor correction circuit 130, a high voltage primary side conversion circuit 140, an isolation conversion circuit 120, and a high voltage secondary side conversion circuit 110 connected in sequence, where the power factor correction circuit 130 is connected to an ac charging port, and sequentially transmits externally input ac power to the high voltage secondary side conversion circuit 110 to charge a battery, and conversely, when the battery is discharged, the high voltage secondary side conversion circuit 110 may receive the dc power of the battery and discharge a load external to the system 1000 through the power factor correction circuit 130. The high-voltage primary side conversion circuit 140, the isolation conversion circuit 120, and the high-voltage secondary side conversion circuit 110 are integrally formed into a DC-DC conversion circuit for adjusting the voltage of the DC power supply. The power factor correction circuit 130 has a power factor correction and ac-dc conversion function. In addition, the isolation switch 120 is used to electrically isolate the other device from the failure of the high voltage primary switch 140 or the high voltage secondary switch 110.
In one example, a transformer may be included in the isolated switching circuit 120. The transformer may be a three-winding magnetically integrated transformer. The high voltage primary side switching circuit 140 may be connected to the primary winding of the magnetically integrated transformer and the high voltage secondary side switching circuit 110 may be connected to the first secondary winding of the transformer. In another example, the isolated switching circuit 120 may also be provided with a primary side resonant circuit and a secondary side resonant circuit, where the high voltage primary side switching circuit 140 is connected to the primary side winding through the primary side resonant circuit, and similarly the high voltage secondary side switching circuit 110 is connected to the first secondary side winding through the secondary side resonant circuit.
In one example, the low voltage secondary side conversion circuit 230 is coupled with the isolation conversion circuit 120, comprising: the low voltage secondary side conversion circuit 230 is connected to the second secondary side winding of the isolated conversion circuit 120.
In this embodiment, the low-voltage secondary side conversion 230 may be one of a full-wave rectifier circuit, a double-current rectifier circuit, or a full-bridge rectifier circuit, and an input terminal of the full-wave rectifier circuit, the double-current rectifier circuit, or the full-bridge rectifier circuit is coupled to the isolation conversion circuit 120, specifically, may be a tap connection of a second secondary side winding of the isolation conversion circuit. The output end is connected with a low-voltage load port of the system, and the full-wave rectifying circuit, the current doubling rectifying circuit or the full-bridge rectifying circuit can receive the input of the alternating-current charging circuit and output the input to the low-voltage load port to supply power for low-voltage load equipment.
In the system 1000 of the present embodiment, only the low-voltage secondary side circuit in the low-voltage discharge circuit 200 may be coupled with the isolation conversion circuit 120 in the ac charging circuit, and no other circuit in the low-voltage power generation circuit is required. Specifically, the low voltage secondary side conversion circuit 230 may be connected to a second secondary winding of the transformer in the isolation conversion circuit 120.
In one example, the ac charging circuit is further configured to: the external ac power or the dc power of the battery is output to the low voltage secondary side conversion circuit 230 through the isolation conversion circuit 120.
In one example, the low voltage secondary side conversion circuit 230 is configured to receive the output of the high voltage primary side conversion circuit 140 or the high voltage secondary side conversion circuit 110 to power the low voltage load device.
For example, when the system 1000 charges the battery through the ac charging port, the power factor correction circuit, the high-voltage primary side conversion circuit 140, the isolation conversion circuit 120, and the high-voltage secondary side conversion circuit 110 connected to the ac charging port operate in this order. And converting the external alternating current into direct current, outputting the direct current to a battery port, and charging the battery. At this time, if the low-voltage load also needs to be supplied, the high-voltage primary side conversion circuit 140 may output to the low-voltage secondary side circuit through the isolation conversion circuit 120, and supply the low-voltage load through the booster circuit 400.
In another example, system 1000 provides power to an external high voltage load through an ac charging port, or when system 1000 only needs to power a low voltage load device. The battery may input dc power to the high voltage secondary side conversion circuit 110, and the high voltage secondary side conversion circuit 110 isolates the conversion circuit 120 to output to the low voltage secondary side circuit, and power the low voltage load through the boost circuit 400.
In this example, the high-voltage primary side conversion circuit 140 or the high-voltage secondary side conversion circuit 110 in the ac charging circuit corresponds to the low-voltage primary side conversion circuit in the low-voltage discharging circuit in the prior art. In this manner, the integration of the low voltage discharge circuit with the ac charging circuit reduces the devices in the system 1000, reduces the cost, and reduces the physical size of the system 1000.
It should be noted that, for different types of low voltage secondary side conversion circuits 230, the connection manner of the low voltage secondary side conversion circuit and the second secondary side winding may be different. For example, the low-voltage secondary side conversion circuit 230 is a full-wave rectification circuit to which 3 taps may be led out from both ends and the center of the second secondary winding of the transformer. If the low voltage secondary side conversion circuit 230 is a double-current rectifying circuit, only 2 taps may be led out from both ends of the second secondary side winding to be connected to the low voltage secondary side conversion circuit 230.
In the embodiments herein, "high voltage" and "low voltage" are relative concepts and do not represent specific voltage ranges for high voltage and low voltage.
In some embodiments, the control circuitry may issue control signals to control the operation of various circuits in the system 1000 described above, such as: the control signal output from the control circuit to the alternating current charging circuit causes the switching device of the alternating current charging circuit to operate. The control circuit may include a control chip, which is not particularly limited herein. Accordingly, the operating modes of the system 1000 for implementation under control of the control circuit may include an ac charging mode, an inverter discharging mode, and a low voltage discharging mode.
In the ac charging mode, the ac charging circuit is configured to convert external ac power into dc power and charge the battery. In the inverter discharge mode, the ac charging circuit is configured to convert dc power input from the battery into ac power and supply the ac power to the external device. In the low-voltage discharging mode, the low-voltage secondary side conversion circuit 230 is configured to output the direct current output from the battery to the voltage boosting circuit 400 through the alternating current charging circuit to supply power to the low-voltage load device; alternatively, the low-voltage secondary side conversion circuit 230 is configured to output external ac power to the boost circuit 400 through an ac charging circuit to supply power to a low-voltage load device.
In another example, the low-voltage discharge mode may be performed simultaneously with the ac charge mode or the inverter discharge mode. For example, when the low-voltage discharging mode and the ac charging mode are performed simultaneously, the ac charging circuit divides the external ac power into two paths by the isolation conversion circuit 120 and outputs the two paths to the high-voltage secondary side conversion circuit 110 and the low-voltage secondary side conversion circuit 230, respectively, and the high-voltage secondary side conversion circuit 110 outputs the two paths to the battery port to charge the battery. The low-voltage secondary side conversion circuit 230 outputs external alternating current to the voltage boosting circuit 400 to supply power to the low-voltage load device. Alternatively, when the low-voltage discharge mode and the inverter discharge mode are performed simultaneously, the high-voltage secondary side conversion circuit 110 outputs the direct current input from the battery to the high-voltage primary side conversion circuit 140 and the low-voltage secondary side conversion circuit 230 through the isolation conversion circuit 120, respectively, and the high-voltage primary side conversion circuit 140 outputs the direct current to the ac charging port through the power factor correction circuit 130 to supply power to the external load. The low voltage secondary side conversion circuit 230 outputs the direct current of the battery into the boost circuit 400 to supply power to the low voltage load device.
In one example, the ac charging circuit 100 and the low voltage discharge circuit 200 may be provided on the same circuit board.
In one example, the control circuitry may also be provided on the circuit board.
According to the vehicle provided by the embodiment of the disclosure, the vehicle includes a power battery and the charge control system 1000 according to any of the embodiments described above, and the power battery is connected to a battery port of the charge control system 1000. In the case of configuring the system 1000, the vehicle can improve the integration level of the vehicle internal circuit, thereby reducing the cost.
In some embodiments, the vehicle further includes a low voltage battery connected to the low voltage load port of the charge control system 1000. By providing the system 1000, power supply to low voltage load devices configured for a vehicle is achieved.
In some embodiments, for example: the system 1000 may be in an ac charging mode after connection with a charging post so that the charging post may charge a battery. The system 1000 may be in an inverter discharge mode after being connected to an external device such that the battery may charge the external device. The external device may be an in-vehicle air conditioner, other vehicle, or the like. The system 1000 may also be in any case in a low voltage discharge mode such that a battery or charging stake supplies power to a low voltage load device. The low-voltage load device may be a screen, a sound, a camera, etc. of the vehicle. In other words, after the vehicle is equipped with the system 1000, the integration of the internal circuits of the vehicle can be improved, thereby reducing the cost.
While certain specific embodiments of the utility model have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the utility model. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.
Claims (12)
1. A charge control system, characterized by comprising: a low-voltage discharge circuit (200) and a booster circuit (400);
the low voltage discharge circuit (200) includes a low voltage secondary side conversion circuit (230) connected to a low voltage load port of the system via the boost circuit (400).
2. The system of claim 1, further comprising an ac charging circuit comprising an isolation switching circuit (120) and a high voltage secondary switching circuit (110), the low voltage secondary switching circuit (230) being coupled to the isolation switching circuit (120), the high voltage secondary switching circuit (110) being connected to a battery port of the system.
3. The system of claim 2, wherein the ac charging circuit further comprises a power factor correction circuit (130), a high voltage primary side conversion circuit (140);
the power factor correction circuit (130), the high-voltage primary side conversion circuit (140), the isolation conversion circuit (120) and the high-voltage secondary side conversion circuit (110) are sequentially connected;
the high-voltage primary side conversion circuit (140) is connected with a primary side winding of the isolation conversion circuit (120), and the high-voltage secondary side conversion circuit (110) is connected with a first secondary side winding of the isolation conversion circuit (120);
the power factor correction circuit (130) is connected to an ac charging port of the system.
4. The system of claim 2, wherein the low voltage secondary side conversion circuit (230) is coupled with the isolation conversion circuit (120) and comprises:
the low voltage secondary side conversion circuit (230) is connected to a second secondary side winding of the isolation conversion circuit (120).
5. The system of claim 4, wherein an output of the boost circuit (400) is connected to a low voltage load port of the system, and an input of the boost circuit (400) is connected to the low voltage secondary side conversion circuit (230).
6. The system according to claim 5, characterized in that the boost circuit (400) comprises a first inductor (L1) and a first bridge arm (1), the first inductor (L1) is connected to a bridge arm midpoint of the first bridge arm (1), and two ends of the first bridge arm (1) are respectively connected with an anode and a cathode of a low-voltage load port.
7. The charge control system of claim 6, wherein the boost circuit is configured to:
and after the output voltage of the low-voltage secondary side conversion circuit (230) is increased, the output voltage is input to the low-voltage load port.
8. The system of claim 7, wherein the low voltage secondary side conversion circuit (230) is configured to receive an output of either the high voltage primary side conversion circuit (140) or the high voltage secondary side conversion circuit (110) to power a low voltage load device.
9. The system of any of claims 2-8, wherein the low voltage secondary side conversion circuit (230) comprises one of a full wave rectifier circuit, a double current rectifier circuit, and a full bridge rectifier circuit;
the input end of the full-wave rectifying circuit, the current doubling rectifying circuit or the full-bridge rectifying circuit is coupled with the isolation converting circuit (120), and the output end of the full-wave rectifying circuit, the current doubling rectifying circuit or the full-bridge rectifying circuit is connected with a low-voltage load port of the system.
10. The system of claim 9, wherein the system is configured to implement at least one of the following modes of operation under control of the control circuit:
an alternating current charging mode; corresponding to the alternating current charging mode, the alternating current charging circuit is configured to convert external alternating current into direct current and charge a battery;
an inversion discharge mode; the alternating current charging circuit is configured to convert direct current input by the battery into alternating current and then supply power to external equipment corresponding to the inversion discharging mode;
a low voltage discharge mode; the low-voltage secondary side conversion circuit (230) is configured to output direct current output from a battery to the boost circuit (400) through an alternating current charging circuit to supply power to a low-voltage load device, corresponding to the low-voltage discharge mode;
alternatively, the low-voltage secondary side conversion circuit (230) is configured to output an external alternating current to the boost circuit (400) through an alternating current charging circuit to supply power to a low-voltage load device.
11. The system of claim 2, wherein the ac charging circuit is further configured to: an external alternating current or a direct current of a battery is output to the low voltage secondary side conversion circuit (230) through the isolation conversion circuit (120).
12. A vehicle comprising a power battery and a charge control system as claimed in any one of claims 1 to 11;
the power battery is connected with a battery port of the charging control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321990746.2U CN220785471U (en) | 2023-07-26 | 2023-07-26 | Charging control system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321990746.2U CN220785471U (en) | 2023-07-26 | 2023-07-26 | Charging control system and vehicle |
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| CN220785471U true CN220785471U (en) | 2024-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202321990746.2U Active CN220785471U (en) | 2023-07-26 | 2023-07-26 | Charging control system and vehicle |
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| CN (1) | CN220785471U (en) |
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- 2023-07-26 CN CN202321990746.2U patent/CN220785471U/en active Active
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