CN219927469U - Tractor power supply system and vehicle - Google Patents
Tractor power supply system and vehicle Download PDFInfo
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- CN219927469U CN219927469U CN202320583640.4U CN202320583640U CN219927469U CN 219927469 U CN219927469 U CN 219927469U CN 202320583640 U CN202320583640 U CN 202320583640U CN 219927469 U CN219927469 U CN 219927469U
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- voltage conversion
- battery
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 119
- 238000004378 air conditioning Methods 0.000 claims description 6
- 238000002955 isolation Methods 0.000 claims description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model provides a tractor power supply system and a vehicle. The tractor power supply system includes a first voltage conversion circuit and a second voltage conversion circuit. The first voltage conversion circuit is connected with the power battery and is used for converting the voltage of the power battery into the voltage required by the load of the tractor. The second voltage conversion circuit is connected with the first voltage conversion circuit and the trailer load and is used for raising the voltage required by the tractor load to the voltage required by the trailer load and supplying power to the trailer load. The tractor power supply system comprises the first voltage conversion circuit and the second voltage conversion circuit, the second voltage conversion circuit is connected with the first voltage conversion circuit and the trailer load, and the low voltage of the tractor is converted into the voltage required by the trailer through the second voltage conversion circuit so as to meet the power consumption requirement of the trailer, and therefore the trailer does not need to be connected with an external power supply, time cost and use cost of a user can be saved, convenience of power consumption of the tractor is improved, and user experience is improved.
Description
Technical Field
The utility model relates to the technical field of battery power supply, in particular to a tractor power supply system and a vehicle.
Background
With the development of automobiles and the increase of market competition, personalized products for specific users, such as trailer trucks, are on the market.
However, current tractors cannot meet the power requirements of a tractor trailer.
Disclosure of Invention
The utility model provides a tractor power supply system and a vehicle, which can meet the power consumption requirement of a trailer.
One aspect of the present utility model provides a tractor power supply system comprising:
the first voltage conversion circuit is connected with the power battery and used for converting the voltage of the power battery into the voltage required by the tractor load; a kind of electronic device with high-pressure air-conditioning system
And the second voltage conversion circuit is connected with the first voltage conversion circuit and the trailer load and is used for increasing the voltage required by the tractor load to the voltage required by the trailer load and supplying power for the trailer load.
The tractor power supply system comprises the first voltage conversion circuit and the second voltage conversion circuit, the second voltage conversion circuit is connected with the first voltage conversion circuit and the trailer load, and the low voltage of the tractor is converted into the voltage required by the trailer through the second voltage conversion circuit so as to meet the power consumption requirement of the trailer, and therefore the trailer does not need to be connected with an external power supply, time cost and use cost of a user can be saved, convenience of power consumption of the tractor is improved, and user experience is improved.
Further, the power supply system further comprises a tractor battery connected with the first voltage conversion circuit, wherein the first voltage conversion circuit is used for charging the tractor battery, and the tractor battery is connected with a tractor load and used for supplying power to the tractor load.
Further, the tractor power supply system further comprises a control switch, wherein the control switch is connected between the first voltage conversion circuit and the second voltage conversion circuit and between the tractor battery and the second voltage conversion circuit, and is used for controlling the on-off of the first voltage conversion circuit and the second voltage conversion circuit and controlling the on-off of the tractor battery and the second voltage conversion circuit; when the tractor is not started, the control switch is disconnected, the first voltage conversion circuit is disconnected from the second voltage conversion circuit, and the tractor battery is disconnected from the second voltage conversion circuit; when the tractor is started, the control switch is closed, the first voltage conversion circuit is communicated with the second voltage conversion circuit, and the tractor battery is communicated with the second voltage conversion circuit. Therefore, the charging circuit can be switched according to the state of the tractor, and the second voltage conversion circuit can supply power to the trailer load only under the condition that the tractor is started, so that the condition that the tractor cannot be started due to the fact that the tractor is lack of battery power is avoided.
Further, the control device also comprises a controller connected with the control switch, wherein the controller is connected with the first voltage conversion circuit and is used for controlling the control switch to be closed if the first voltage conversion circuit is in a working state; and if the first voltage conversion circuit is in a non-working state, controlling the control switch to be disconnected.
Further, the electric power control device further comprises a battery sensor connected with the tractor battery, wherein the battery sensor is used for detecting the electric power of the tractor battery, and the controller is connected with the battery sensor and used for controlling the control switch to be opened or closed according to the electric power of the tractor battery when the first voltage conversion circuit is in the working state. The battery sensor can be used for preventing the tractor battery from being lack of power by detecting the electric quantity of the tractor battery so as to prevent the tractor battery from charging the trailer battery, so that the tractor cannot be started, and the service life of the tractor battery is not influenced while the power supply to the trailer load is realized.
Further, the electric vehicle comprises a trailer interface, one end of the trailer interface is connected with the first voltage conversion circuit, the other end of the trailer interface is used for being connected with a trailer headlight, and the first voltage conversion circuit and the tractor battery supply power for the trailer headlight through the trailer interface.
Further, the control switch comprises an isolating switch; and/or
The first voltage conversion circuit includes a first DC/DC converter; and/or
The second voltage conversion circuit includes a second DC/DC converter.
Further, the device also comprises a charging interface connected with the second voltage conversion circuit and used for connecting the trailer load.
Further, the trailer load includes a trailer battery and trailer powered equipment.
Further, the system also comprises a controller connected with the second voltage conversion circuit, wherein the controller is connected with the trailer battery and is used for determining the voltage required by the trailer load according to the charging voltage of the trailer battery.
Another aspect of the utility model provides a vehicle comprising:
a tractor comprising a power battery, a tractor load and a tractor power supply system as described in any of the above; a kind of electronic device with high-pressure air-conditioning system
And the trailer is connected with the tractor and comprises a trailer load.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a system block diagram of an embodiment of a vehicle of the present utility model.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the utility model. Rather, they are merely examples of apparatus and methods consistent with aspects of the utility model as detailed in the accompanying claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" or "several" means at least two. Unless otherwise indicated, the terms "front," "rear," "lower," and/or "upper" and the like are merely for convenience of description and are not limited to one location or one spatial orientation. The word "comprising" or "comprises", and the like, means that elements or items appearing before "comprising" or "comprising" are encompassed by the element or item recited after "comprising" or "comprising" and equivalents thereof, and that other elements or items are not excluded. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.
The tractor power supply system comprises a first voltage conversion circuit and a second voltage conversion circuit. The first voltage conversion circuit is connected with the power battery and is used for converting the voltage of the power battery into the voltage required by the load of the tractor. The second voltage conversion circuit is connected with the first voltage conversion circuit and the trailer load and is used for raising the voltage required by the tractor load to the voltage required by the trailer load and supplying power for the trailer load.
The power supply system of the tractor comprises the first voltage conversion circuit and the second voltage conversion circuit, the second voltage conversion circuit is connected with the first voltage conversion circuit and the trailer load, and the low voltage of the tractor is converted into the voltage required by the trailer through the second voltage conversion circuit so as to meet the power consumption requirement of the trailer, and therefore the trailer does not need to be connected with an external power supply, time cost and use cost of a user can be saved, and the convenience degree of power consumption of the tractor is improved.
The vehicle comprises a tractor and a trailer, wherein the tractor comprises a power battery, a tractor load and a tractor power supply system. A trailer is coupled to the tractor and includes a trailer load.
The power supply system for a tractor and the vehicle according to the present utility model will be described in detail with reference to the accompanying drawings. The features of the examples and embodiments described below may be combined with each other without conflict.
Fig. 1 shows a system block diagram of an embodiment of a vehicle 1 according to the utility model. The vehicle 1 of the embodiment of the utility model includes a tractor 10 and a trailer 20. It should be noted that the trailer 20 according to the embodiment of the present utility model may be a vehicle that is towed by an automobile or other vehicles without a power driving device, and is also called a rear trailer or a trailer. It is within the scope of the present utility model for trailer 20 to include, but not be limited to, a trailer caravan and other unpowered powered vehicles. It can be appreciated that the trailer 20 itself is not provided with a power source, and the tractor 10 in front is required to be towed for normal running; and the trailer 20 requires an external power supply to meet the power requirements of the electrical appliances and batteries on the trailer 20. Alternatively, the trailer 20 and the tractor 10 may be connected in a semi-trailer connection or in a full-trailer connection. Alternatively, the tractor 10 may be a new energy vehicle. The new energy vehicles include, but are not limited to, pure electric vehicles, hybrid electric vehicles, plug-in hybrid electric vehicles, fuel cell electric vehicles, and other vehicles using a vehicle-mounted power battery as a main power source or one of power sources.
In some embodiments, the tractor 10 includes a power battery 11, a tractor load 12, and a tractor power supply system 13. The power battery 11 is a power source for the tractor 10, and the type of power battery 11 may be a lead-acid battery, a lithium ion battery, or other battery type. It is appreciated that the tractor load 12 may be a powered device on the tractor 10 including, but not limited to, a headlight load, an interior light load, a turn signal load, a window lift load, an air conditioning load, and a wiper load. In some embodiments, a trailer 20 is coupled to the tractor 10, and the trailer 20 includes a trailer load 21. It should be noted that, the trailer 20 needs to be connected with the tractor 10 to form a complete vehicle to achieve the trailer function, but it does not mean that the trailer 20 must be connected with the tractor 10, and the present utility model only describes the trailer 20 when the trailer 20 is connected with the tractor 10 to achieve the trailer 20 function, and does not represent the necessary binding or connection relationship between the trailer 20 and the tractor 10, and the user can choose whether the trailer 20 is connected with the tractor 10 and how the trailer 20 is connected with the tractor 10 according to the actual situation, which is not limited by the present utility model.
In some embodiments, the trailer load 21 includes a trailer battery 22 and a trailer powered device 23. In some embodiments, the trailer 20 includes a trailer headlight 24. It should be noted that the trailer headlight 24 is not limited to the turn signal, the rear fog light and the brake light, but may also include other safety related loads of the trailer 20, i.e. related loads meeting the requirements of legal regulations. It will be appreciated that the trailer headlight 24 needs to be synchronized with the headlight load of the tractor 10 to meet legal regulations. The trailer powered equipment 23 includes high power loads and other loads, which may be backup power sources, lighting loads in the vehicle, air conditioning loads, and the like. The type of trailer battery 22 may be a lead acid battery, a lithium ion battery, or other battery type.
As shown in fig. 1, the tractor power supply system 13 of the embodiment of the utility model includes a first voltage conversion circuit 100 and a second voltage conversion circuit 200. The first voltage conversion circuit 100 is connected to the power battery 11 for converting the voltage of the power battery 11 into a voltage required by the tractor load 12. The second voltage conversion circuit 200 is connected to the first voltage conversion circuit 100 and the trailer load 21, and the second voltage conversion circuit 200 is configured to boost the voltage required by the tractor load 12 to the voltage required by the trailer load 21, and to supply power to the trailer load 21. In the related art, as the required voltage of the tractor load converted by the first voltage conversion circuit is lower, the voltage is further reduced when being transmitted to the trailer through a line, and the 13PIN interface is reserved in the existing tractor power supply system, the interface can only meet the power consumption requirements of the safety related load of the trailer, such as a steering lamp, a rear fog lamp, a brake lamp and the like, and cannot charge a trailer battery or supply power to the trailer electric equipment, so that the power consumption trouble is brought to a user. According to the vehicle 1 provided by the embodiment of the utility model, the technical scheme of improving the low voltage of the tractor 10 through the tractor power supply system 13 is adopted to meet the power consumption requirement of the trailer 20, so that the trailer 20 does not need to be connected with an external power supply or other power generation equipment, the time cost and the use cost of a user can be saved, the power consumption convenience of the trailer 20 is improved, and the user experience is improved. In some embodiments, the battery management system of the tractor 10 includes a tractor power supply system 13 to enable intelligent control of the tractor power supply system.
In some embodiments, the first voltage conversion circuit 100 includes a first DC/DC converter. In other embodiments, the first voltage conversion circuit 100 comprises an on-board generator. It can be understood that the DC/DC converter is a voltage converter that effectively outputs a fixed voltage after converting an input voltage, and has the characteristics of higher working efficiency, more energy saving and the like compared with a vehicle-mounted generator arranged on a conventional fuel vehicle. In some embodiments, the first DC/DC converter is a buck DC/DC converter to reduce the voltage of the power battery 11 to the voltage required by the tractor load 12. In some embodiments, the voltage of the power battery 11 converted by the first voltage conversion circuit 100 is 400V. In some embodiments, the voltage required by the converted tractor load 12 is 12V, which may be 12.6V. In some embodiments, the second voltage conversion circuit 200 includes a second DC/DC converter. In one embodiment, the second DC/DC converter is a boost DC/DC converter. In some embodiments, the second voltage conversion circuit 200 may determine the voltage required by the trailer load 21 from the charging voltage of the trailer battery 22. Alternatively, the charging voltage of the trailer battery 22 may be determined based on the voltage of the individual cells and the number of individual cells of the various types of trailer batteries 22 currently available. In some embodiments, the tractor power supply system 13 includes a controller 500 coupled to the second voltage conversion circuit 200, and the controller 500 is coupled to the trailer battery 22, and the controller 500 can determine the charging voltage of the trailer battery 22 and further determine the desired voltage for the trailer load 21 based on different specifications and parameters of the trailer battery 22. In some embodiments, the second DC/DC converter is configured to provide a desired voltage for the trailer load 21 of 15V, which may be sufficient to charge the trailer battery 22 of 12V currently available on the market. In other embodiments, the second DC/DC converter is provided with a range of voltage values, and the controller 500 may select a voltage value within the range of voltage values according to the charging voltage of the trailer battery 22, and use the voltage value as the required voltage for the trailer load 21; of course, the user may also select the desired voltage for the trailer load 21 based on the specifications and parameters of the trailer battery 22.
With continued reference to fig. 1, in some embodiments, the tractor power supply system 13 includes a tractor battery 300 connected to the first voltage conversion circuit 100. The first voltage conversion circuit 100 is configured to charge a tractor battery 300, the tractor battery 300 being coupled to the tractor load 12 for powering the tractor load 12. It will be appreciated that the tractor battery 300 may power the tractor load 12 as well as other electrical uses of the tractor 10. Alternatively, the type of tractor battery 300 may be a lead-acid battery, a lithium-ion battery, or other battery type.
On the basis of the above embodiment, the tractor power supply system 13 includes the control switch 400. The control switch 400 is connected between the first voltage conversion circuit 100 and the second voltage conversion circuit 200, and between the traction vehicle battery 300 and the second voltage conversion circuit 200. The control switch 400 is used for controlling the on-off of the first voltage conversion circuit 100 and the second voltage conversion circuit 200, and controlling the on-off of the tractor battery 300 and the second voltage conversion circuit 200. When the tractor 10 is not started, the control switch 400 is turned off, the first voltage conversion circuit 100 is disconnected from the second voltage conversion circuit 200, and the tractor battery 300 is disconnected from the second voltage conversion circuit 200; when the truck 10 is started, the control switch 400 is closed, the first voltage conversion circuit 100 communicates with the second voltage conversion circuit 200, and the truck battery 300 communicates with the second voltage conversion circuit 200. In this manner, in the event that the truck 10 is not started, the first DC/DC converter may preferentially charge the truck battery 300, preventing the truck battery 300 from being depleted of power by charging the trailer battery 22 by the truck battery 300, thereby resulting in an inability of the truck 10 to start, while achieving power to the trailer load 21 without affecting the useful life of the truck battery 300. In some embodiments, after the tractor battery 300 is fully charged, the control switch 400 is closed to power the trailer load 21.
In some embodiments, the controller 500 is connected to the first voltage conversion circuit 100. If the first voltage conversion circuit 100 is in an operating state, the controller 500 controls the control switch 400 to be closed. If the first voltage conversion circuit 100 is in the non-operating state, the controller 500 controls the control switch 400 to be turned off. In some embodiments, the controller 500 may be an MCU (Micro Controller Unit, micro control unit) or other control unit. In some embodiments, the controller 500 is connected to a first DC/DC converter.
In some embodiments, the tractor power supply system 13 includes a battery sensor 600 coupled to the tractor battery 300. Alternatively, the battery sensor 600 may be a charge sensor, also known as a charge transmitter, that can detect the charge of the tractor battery 300. The battery sensor 600 may determine whether the tractor battery 300 is full by detecting the current input to the tractor battery 300. In some embodiments, when the battery sensor 600 detects that the electric quantity of the tractor battery 300 reaches an electric quantity value, the battery sensor 600 may send a signal to the second voltage conversion circuit 200 or send a signal to the controller 500 to control the output of the second voltage conversion circuit 200, so that the tractor battery 300 is prevented from being fully charged in a short time, thereby prolonging the service life of the tractor battery 300. In some embodiments, the controller 500 is connected to the battery sensor 600. The controller 500 may control the switch 400 to be opened or closed according to the amount of electricity of the traction battery 300 when the first voltage conversion circuit is in an operating state. Of course, based on the embodiment in which the control switch 400 includes a disconnecting switch, the battery sensor 600 may directly transmit a signal to the disconnecting switch after detecting that the tractor battery 300 is full, and the disconnecting switch is controlled to be closed to charge the trailer battery 22, and may also supply power to the trailer electric equipment 23.
In some embodiments, the trailer 20 includes a trailer battery sensor 25, and the trailer battery sensor 25 is coupled to the trailer battery 22 to detect the charge of the trailer battery 22. The trailer battery sensor 25 may determine whether the trailer battery is full by detecting the current input to the trailer battery 22. In some embodiments, when the trailer battery sensor 25 detects that the power of the trailer battery 22 reaches a constant power value, the trailer battery sensor 25 may send a signal to the second voltage conversion circuit 200 or send a signal to the controller 500 to control the output of the second voltage conversion circuit 200, so that the trailer battery 22 is prevented from being fully charged in a short time, thereby prolonging the service life of the trailer battery 22.
In some embodiments, control switch 400 includes a disconnector that can switch lines based on the signal output by battery sensor 600. Compared with a common mechanical switch, the isolating switch has the characteristics of simple control, more intelligent control mode and the like. In some embodiments of the present utility model, the isolation switch may switch the connection state of the second voltage conversion circuit 200 and the first voltage conversion circuit 100. When the first DC/DC converter is in an inactive state, the isolating switch can disconnect the first DC/DC converter from the two DC/DC converters; when the first DC/DC converter is in operation and the tractor battery 300 is full, the isolating switch may allow the electrical circuit between the first and second DC/DC converters to be completed to power the trailer load 21. It will be appreciated that when the truck 10 is not activated, the first DC/DC converter is inactive; when the truck 10 is started, the first DC/DC converter is in operation.
In some embodiments, the tractor power supply system 13 includes a charging interface 700 connected to the second voltage conversion circuit 200 for connecting the trailer load 21. In some embodiments, a flap is provided outside of the charging interface 700 that can be opened by a user. Accordingly, the trailer 20 includes a charging connector corresponding to the charging interface 700. In some embodiments, the charging connector is coupled to the trailer 20 via a telescoping hose or other harness, which may improve the fit of the charging connector to the charging interface 700 of a different tractor 10.
In some embodiments, the tractor power supply system 13 includes a trailer interface 800. Specifically, one end of the trailer interface 800 is connected to the first voltage conversion circuit 100, and the other end of the trailer interface 800 is used to connect the trailer headlight 24. The first voltage conversion circuit 100 and the tractor battery 300 power the trailer headlight 24 through the trailer interface 800. Accordingly, the trailer 20 includes a trailer joint corresponding to the trailer interface 800. In some embodiments, the trailer hitch is coupled to the trailer 20 via a telescoping hose or other harness, which may improve the fit of the trailer hitch to the trailer interface 800 of a different tractor 10.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the utility model.
Claims (10)
1. A tractor power supply system, comprising:
the first voltage conversion circuit is connected with the power battery and used for converting the voltage of the power battery into the voltage required by the tractor load; a kind of electronic device with high-pressure air-conditioning system
The second voltage conversion circuit is connected with the first voltage conversion circuit and the trailer load and is used for increasing the voltage required by the tractor load to the voltage required by the trailer load and supplying power for the trailer load;
the first voltage conversion circuit is used for charging the tractor battery, and the tractor battery is connected with a tractor load and is used for supplying power to the tractor load.
2. The tractor power supply system of claim 1, further comprising a control switch connected between the first voltage conversion circuit and the second voltage conversion circuit and between the tractor battery and the second voltage conversion circuit, the control switch being configured to control the on-off of the first voltage conversion circuit and the second voltage conversion circuit and to control the on-off of the tractor battery and the second voltage conversion circuit; when the tractor is not started, the control switch is disconnected, the first voltage conversion circuit is disconnected from the second voltage conversion circuit, and the tractor battery is disconnected from the second voltage conversion circuit; when the tractor is started, the control switch is closed, the first voltage conversion circuit is communicated with the second voltage conversion circuit, and the tractor battery is communicated with the second voltage conversion circuit.
3. The tractor power system of claim 2, further comprising a controller coupled to the control switch, the controller coupled to the first voltage conversion circuit for controlling the control switch to close if the first voltage conversion circuit is in an operational state; and if the first voltage conversion circuit is in a non-working state, controlling the control switch to be disconnected.
4. The tractor power supply system of claim 3, further including a battery sensor coupled to the tractor battery, the battery sensor configured to detect an amount of power of the tractor battery, the controller coupled to the battery sensor to control the control switch to open or close based on the amount of power of the tractor battery when the first voltage conversion circuit is in the operational state.
5. The tractor power supply system of claim 2, further including a trailer interface, one end of the trailer interface being connected to the first voltage conversion circuit, the other end of the trailer interface being configured to connect to a trailer headlight, the first voltage conversion circuit and the tractor battery providing power to the trailer headlight through the trailer interface.
6. The tractor power system of claim 2, wherein the control switch includes an isolation switch; and/or
The first voltage conversion circuit includes a first DC/DC converter; and/or
The second voltage conversion circuit includes a second DC/DC converter.
7. The tractor power supply system of claim 1, further including a charging interface connected to the second voltage conversion circuit for connecting the trailer load.
8. The tractor power supply system of claim 1, wherein the trailer load includes a trailer battery and trailer powered equipment.
9. The tractor power supply system of claim 8, further including a controller coupled to the second voltage conversion circuit, the controller coupled to the trailer battery for determining the voltage required by the trailer load based on the charging voltage of the trailer battery.
10. A vehicle, characterized by comprising:
a tractor comprising a power battery, a tractor load and a tractor power supply system as claimed in any one of claims 1 to 9; a kind of electronic device with high-pressure air-conditioning system
And the trailer is connected with the tractor and comprises a trailer load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320583640.4U CN219927469U (en) | 2023-03-20 | 2023-03-20 | Tractor power supply system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320583640.4U CN219927469U (en) | 2023-03-20 | 2023-03-20 | Tractor power supply system and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219927469U true CN219927469U (en) | 2023-10-31 |
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| CN202320583640.4U Active CN219927469U (en) | 2023-03-20 | 2023-03-20 | Tractor power supply system and vehicle |
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| CN (1) | CN219927469U (en) |
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2023
- 2023-03-20 CN CN202320583640.4U patent/CN219927469U/en active Active
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