Vehicle-mounted power supply, battery system of vehicle and vehicle

Abstract

The invention relates to a vehicle-mounted power source, a battery system of a vehicle and the vehicle, the vehicle-mounted power source is applied to a single-battery vehicle, at least part of devices of the vehicle-mounted power source are detachably connected with the vehicle, and the vehicle-mounted power source comprises a first battery and a second battery, the first battery is used for supplying power to the first external load and / or the second external load in a disassembly state; the first end of the alternating current-direct current conversion device is connected with the first battery, the second end of the alternating current-direct current conversion device is connected with the first load outside the vehicle, and the alternating current-direct current conversion device is used for converting direct current output by the first battery into alternating current and supplying the alternating current to the first load outside the vehicle; and the first end of the voltage conversion device is connected with the first battery, the second end of the voltage conversion device is connected with the second load outside the vehicle, and the voltage conversion device is used for converting the voltage of the first battery and then outputting direct current to the second load outside the vehicle.

Description

Technical Field

[0001] The present disclosure relates to automobile technology, and more particularly, to an on-vehicle power supply, a battery system for a vehicle, and a vehicle. Background Art

[0002] With the development of vehicle technology, when the vehicle is not in operation, the vehicle's battery system is in an idle state and is not fully utilized. When the owner needs to use electricity outside the vehicle, the owner needs to find or equip another power supply. Summary of the Invention

[0003] An object of the present invention is to provide a new technical solution for vehicle-mounted power supply.

[0004] According to a first aspect of the present invention, there is provided an on-board power supply for use in a single-battery vehicle, wherein at least part of the on-board power supply is detachably connected to the vehicle, and the on-board power supply comprises:

[0005] a first battery, the first battery being a battery of the vehicle, and the first battery being used to supply power to a first external load and / or a second external load when in a disassembled state;

[0006] an AC / DC converter, wherein a first end of the AC / DC converter is connected to the first battery, a second end of the AC / DC converter is connected to the first external load, and the AC / DC converter is configured to convert DC power output by the first battery into AC power for supplying to the first external load;

[0007] A voltage conversion device, wherein a first end of the voltage conversion device is connected to the first battery, and a second end of the voltage conversion device is connected to the second external load. The voltage conversion device is used to convert the voltage of the first battery and output direct current to the second external load.

[0008] Optionally, the AC / DC conversion device and the voltage conversion device are both complete vehicle devices that can be removed from the vehicle.

[0009] Optionally, the AC / DC conversion device of the vehicle includes: a high-voltage DC / low-voltage DC, a high-voltage DC / DC, a high-voltage AC / DC, and an AC output assembly connected in sequence;

[0010] The voltage conversion device includes a low-voltage output assembly of the vehicle, the low-voltage output assembly of the vehicle includes a switch control circuit and a voltage conversion circuit, a first end of the switch control circuit is connected to the first battery, a second end of the switch control circuit is connected to a first end of the voltage conversion circuit, and a second end of the voltage conversion circuit is connected to the second external load;

[0011] The high-voltage DC / low-voltage DC, the high-voltage DC / DC, the high-voltage AC / DC, the AC power output assembly, the switch control circuit and the voltage conversion circuit are all complete vehicle devices that can be removed from the vehicle.

[0012] Optionally, the AC / DC conversion device includes a high-voltage DC / DC, a high-voltage AC / DC and an AC output assembly connected in sequence;

[0013] The vehicle's voltage conversion device includes a high-voltage DC / low-voltage DC and a low-voltage output assembly connected to each other;

[0014] The high-voltage DC / DC, the high-voltage AC / DC, the AC output assembly, the high-voltage DC / low-voltage DC, and the low-voltage output assembly are all complete vehicle devices that can be removed from the vehicle.

[0015] Optionally, at least a portion of one of the AC / DC conversion device and the voltage conversion device is an off-vehicle device.

[0016] Optionally, the AC / DC conversion device of the vehicle includes: a high-voltage DC / low-voltage DC, a high-voltage DC / DC, a high-voltage AC / DC, and an AC output assembly connected in sequence;

[0017] The voltage conversion device includes a first voltage conversion circuit and at least one low-voltage output assembly connected to each other, the low-voltage output assembly includes a switch control circuit and a second voltage conversion circuit connected to each other, a first end of the first voltage conversion circuit is connected to the high-voltage DC / low-voltage DC, a second end of the first voltage conversion circuit is connected to the first end of the switch control circuit, a second end of the switch control circuit is connected to the first end of the second voltage conversion circuit, and a second end of the voltage conversion circuit is connected to the second external load;

[0018] The high-voltage DC / low-voltage DC, the high-voltage DC / DC, the high-voltage AC / DC and the AC power output assembly are all complete vehicle devices that can be removed from the vehicle, and the first voltage conversion circuit and at least one of the low-voltage output assemblies are external devices.

[0019] Optionally, the AC / DC conversion device of the vehicle includes: a high-voltage DC / low-voltage DC, a high-voltage DC / DC, a high-voltage AC / DC, and an AC output assembly connected in sequence;

[0020] The voltage conversion device includes a low-voltage output assembly, which includes a switch control circuit and a voltage conversion circuit. A first end of the switch control circuit is connected to the first battery, a second end of the switch control circuit is connected to a first end of the voltage conversion circuit, and a second end of the voltage conversion circuit is connected to the second external load.

[0021] The high-voltage DC / low-voltage DC, the high-voltage DC / DC, the high-voltage AC / DC and the AC power output assembly are all complete vehicle devices that can be removed from the vehicle, and the switch control circuit and the voltage conversion circuit are external devices.

[0022] Optionally, the AC / DC conversion device includes a high-voltage DC / DC, a high-voltage AC / DC and an AC output assembly connected in sequence;

[0023] The voltage conversion device includes a low-voltage output assembly of the vehicle, the low-voltage output assembly of the vehicle includes a switch control circuit and a voltage conversion circuit, a first end of the switch control circuit is connected to the first battery, a second end of the switch control circuit is connected to a first end of the voltage conversion circuit, and a second end of the voltage conversion circuit is connected to the second external load;

[0024] The high-voltage DC / low-voltage DC, the high-voltage DC / DC, the high-voltage AC / DC and the AC power output assembly are all off-vehicle devices, and the switch control circuit and the voltage conversion circuit are all complete vehicle devices that can be removed from the vehicle.

[0025] Optionally, the AC / DC conversion device includes a high-voltage DC / DC, a high-voltage AC / DC and an AC output assembly connected in sequence;

[0026] The voltage conversion device includes a high voltage DC / low voltage DC and a low voltage output assembly connected to each other;

[0027] The high-voltage DC / DC, the high-voltage AC / DC and the AC output assembly are all complete vehicle devices that can be removed from the vehicle, and the high-voltage DC / low-voltage DC and the low-voltage output assembly are off-vehicle devices.

[0028] Optionally, the AC / DC conversion device is an AC / DC conversion device of a vehicle, and the AC / DC conversion device of the vehicle includes a high-voltage DC / DC, a high-voltage AC / DC and an AC output assembly connected in sequence;

[0029] The voltage conversion device includes a high voltage DC / low voltage DC and a low voltage output assembly connected to each other;

[0030] The high-voltage DC / DC, the high-voltage AC / DC and the AC power output assembly are all complete vehicle devices that can be removed from the vehicle, the high-voltage DC / low-voltage DC is a complete vehicle device that can be removed from the vehicle, and the low-voltage output assembly is an external device.

[0031] Optionally, the AC / DC conversion device is an AC / DC conversion device of a vehicle, and the AC / DC conversion device of the vehicle includes a high-voltage DC / DC, a high-voltage AC / DC and an AC output assembly connected in sequence;

[0032] The voltage conversion device includes a high-voltage DC / low-voltage DC and a low-voltage output assembly, wherein a first end of the high-voltage DC / low-voltage DC is connected to the high-voltage DC / DC, and a second end of the high-voltage DC / low-voltage DC is connected to the low-voltage output assembly;

[0033] The high-voltage DC / DC, the high-voltage AC / DC and the AC output assembly are all complete vehicle devices that can be removed from the vehicle, and the high-voltage DC / low-voltage DC and the low-voltage output assembly are all external devices.

[0034] Optionally, the high-voltage DC / low-voltage DC includes a first secondary-side conversion circuit, a first isolation conversion circuit, and a first primary-side conversion circuit;

[0035] The high-voltage DC / DC includes a second secondary-side conversion circuit, a second isolation conversion circuit, and a second primary-side conversion circuit;

[0036] The high voltage AC / DC includes a power factor correction circuit;

[0037] The AC output assembly includes a switch control circuit;

[0038] The first end of the first secondary conversion circuit is connected to the first battery, the second end of the first secondary conversion circuit is connected to the first end of the first isolation conversion circuit, the second end of the first isolation conversion circuit is connected to the first end of the first primary conversion circuit, the second end of the first primary conversion circuit is connected to the first end of the second secondary conversion circuit, the second end of the second secondary conversion circuit is connected to the first end of the second isolation conversion circuit, the second end of the second isolation conversion circuit is connected to the first end of the second primary conversion circuit, the second end of the second primary conversion circuit is connected to the first end of the power factor correction circuit, the second end of the power factor correction circuit is connected to the first end of the switch control circuit, and the second end of the switch control circuit is connected to the first external vehicle load.

[0039] Optionally, the high-voltage DC / DC includes a first secondary-side conversion circuit, a first isolation conversion circuit, and a first primary-side conversion circuit;

[0040] The high voltage AC / DC includes a power factor correction circuit;

[0041] The AC output assembly includes a switch control circuit;

[0042] The first end of the first secondary conversion circuit is connected to the first battery, the second end of the first secondary conversion circuit is connected to the first end of the first isolation conversion circuit, the second end of the first isolation conversion circuit is connected to the first end of the first primary conversion circuit, the second end of the first primary conversion circuit is connected to the first end of the power factor correction circuit, the second end of the power factor correction circuit is connected to the first end of the switch control circuit, and the second end of the switch control circuit is connected to the first external vehicle load.

[0043] Optionally, the high-voltage DC / DC includes a first secondary-side conversion circuit, a first isolation conversion circuit, and a first primary-side conversion circuit;

[0044] The high voltage AC / DC includes a power factor correction circuit;

[0045] The AC output assembly includes a switch control circuit;

[0046] A first end of the first secondary conversion circuit is connected to the first battery, a second end of the first secondary conversion circuit is connected to the first end of the first isolation conversion circuit, a second end of the first isolation conversion circuit is connected to the first end of the first primary conversion circuit, a second end of the first primary conversion circuit is connected to the first end of the power factor correction circuit, a second end of the power factor correction circuit is connected to the first end of the switch control circuit, and a second end of the switch control circuit is connected to the first external load;

[0047] The high-voltage DC / low-voltage DC includes a second secondary-side conversion circuit, a second isolation conversion circuit, and a second primary-side conversion circuit;

[0048] The low voltage output assembly includes a voltage conversion circuit;

[0049] A first end of the second secondary conversion circuit is connected to the first battery, a second end of the second secondary conversion circuit is connected to the first end of the second isolation conversion circuit, a second end of the second isolation conversion circuit is connected to the first end of the second primary conversion circuit, a second end of the second primary conversion circuit is connected to the first end of the voltage conversion circuit, and a second end of the voltage conversion circuit is connected to the second external load;

[0050] The low-voltage output assembly includes a switch control circuit and a voltage conversion circuit. The first end of the switch control circuit is connected to the high-voltage DC / low-voltage DC, the second end of the switch control circuit is connected to the first end of the voltage conversion circuit, and the second end of the voltage conversion circuit is connected to the second external vehicle load.

[0051] Optionally, the high-voltage DC / DC includes a first secondary-side conversion circuit, a first isolation conversion circuit, and a first primary-side conversion circuit;

[0052] The high voltage AC / DC includes a power factor correction circuit;

[0053] The AC output assembly includes a switch control circuit;

[0054] A first end of the first secondary conversion circuit is connected to the first battery, a second end of the first secondary conversion circuit is connected to the first end of the first isolation conversion circuit, a second end of the first isolation conversion circuit is connected to the first end of the first primary conversion circuit, a second end of the first primary conversion circuit is connected to the first end of the power factor correction circuit, a second end of the power factor correction circuit is connected to the first end of the switch control circuit, and a second end of the switch control circuit is connected to the first external load;

[0055] The high-voltage DC / low-voltage DC includes a second secondary-side conversion circuit, a second isolation conversion circuit, and a second primary-side conversion circuit;

[0056] The low voltage output assembly includes a voltage conversion circuit;

[0057] The first end of the second secondary conversion circuit is connected to the high-voltage DC / DC, the second end of the second secondary conversion circuit is connected to the first end of the second isolation conversion circuit, the second end of the second isolation conversion circuit is connected to the first end of the second primary conversion circuit, the second end of the second primary conversion circuit is connected to the first end of the voltage conversion circuit, and the second end of the voltage conversion circuit is connected to the second external vehicle load.

[0058] According to a second aspect of the present invention, there is provided a battery system for a vehicle, comprising:

[0059] The first battery in the vehicle-mounted power supply according to any one of the first aspects;

[0060] A voltage conversion device; a first end of the voltage conversion device is connected to the first battery, and a second end of the voltage conversion device is suitable for connecting to a non-power load of the vehicle. The voltage conversion device is used to convert the voltage of the first battery and output direct current to the non-power load of the vehicle.

[0061] According to a third aspect of the present invention, there is provided a battery system for a vehicle, comprising:

[0062] The first battery in the vehicle-mounted power supply according to any one of the first aspects;

[0063] An AC / DC converter; a first end of the AC / DC converter is connected to the first battery, and a second end of the AC / DC converter is suitable for connecting to an AC power load of the vehicle; the AC / DC converter is used to convert the DC power output by the first battery into AC power for the AC power load.

[0064] According to a fourth aspect of the present invention, a vehicle is provided, comprising: a battery system for the vehicle according to any one of the second aspect or the third aspect.

[0065] The vehicle-mounted power supply provided by the present invention is a vehicle-mounted power supply in which the batteries in the battery system can be removed from the vehicle and form a mobile power supply together with a voltage conversion device and an AC / DC conversion device. The voltage conversion device can convert the voltage of the battery and output DC power to power external loads. The AC / DC conversion device can convert the DC power of the battery into AC power to power external loads. This allows the vehicle's battery system to be fully utilized when in an idle state, while meeting the owner's external DC power needs and improving the owner's vehicle-using experience.

[0066] Features and advantages of the embodiments of the present specification will become apparent from the following detailed description of exemplary embodiments of the present specification with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the specification and, together with the description, serve to explain the principles of the embodiments of the specification.

[0068] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the specification and, together with the description, serve to explain the principles of the embodiments of the specification.

[0069] Figure 1 A structural block diagram of a vehicle-mounted power supply according to an embodiment of the present invention is shown.

[0070] Figure 2 A structural block diagram of a vehicle-mounted power supply according to an embodiment of the present invention is shown.

[0071] Figure 3 A schematic diagram of the battery system is shown after the first battery, the AC / DC conversion device, and the voltage conversion device are removed from the battery system of the vehicle.

[0072] Figure 4 FIG. 4 shows a schematic diagram of a high voltage DC / low voltage DC circuit according to an embodiment of the present invention.

[0073] Figure 5 A structural block diagram of a vehicle-mounted power supply according to an embodiment of the present invention is shown.

[0074] Figure 6A schematic diagram of the battery system is shown after the first battery, the AC / DC conversion device, and the voltage conversion device are removed from the battery system of the vehicle.

[0075] Figure 7 A structural block diagram of a vehicle-mounted power supply according to an embodiment of the present invention is shown.

[0076] Figure 8 A structural block diagram of a vehicle-mounted power supply according to an embodiment of the present invention is shown.

[0077] Figure 9 A schematic diagram of the battery system is shown after the first battery and the low-voltage output assembly are removed from the battery system of the vehicle.

[0078] Figure 10 A circuit diagram of a high-voltage DC / DC and a high-voltage AC / DC according to an embodiment of the present invention is shown.

[0079] Figure 11 A structural block diagram of a vehicle-mounted power supply according to an embodiment of the present invention is shown.

[0080] Figure 12 A schematic diagram of the battery system is shown after the first battery, the AC / DC conversion device, and the voltage conversion device are removed from the battery system of the vehicle.

[0081] Figure 13 FIG. 4 shows a schematic diagram of a high voltage DC / low voltage DC circuit according to an embodiment of the present invention.

[0082] Figure 14 A structural block diagram of a power supply device according to an embodiment of the present invention is shown.

[0083] Figure 15 A schematic diagram of the battery system is shown after the first battery, the AC / DC conversion device, and the voltage conversion device are removed from the battery system of the vehicle.

[0084] Figure 16 A structural block diagram of a power supply device according to an embodiment of the present invention is shown.

[0085] Figure 17 A schematic diagram of the battery system is shown after the first battery, the AC / DC conversion device, and the voltage conversion device are removed from the battery system of the vehicle.

[0086] Figure 18 A structural block diagram of a power supply device according to an embodiment of the present invention is shown.

[0087] Figure 19 A structural block diagram of a battery system for a vehicle according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0093] Various exemplary embodiments of the present specification will now be described in detail with reference to the accompanying drawings.

[0094] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the embodiments of this specification, its application, or uses.

[0095] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0096] <On-board Power Supply Example>

[0097] Example 1

[0098] One embodiment of the present invention provides a vehicle-mounted power supply for use in a single-battery vehicle. At least part of the vehicle-mounted power supply is detachably connected to the vehicle. Figure 1 As shown, the vehicle-mounted power supply of this embodiment includes a first battery, an AC / DC conversion device and a voltage conversion device.

[0099] The first battery is a battery of the vehicle and is used to supply power to the first external load and / or the second external load when the first battery is in a disassembled state.

[0100] The first end of the AC / DC converter is connected to the first battery, and the second end of the AC / DC converter is connected to the first external load. The AC / DC converter is used to convert the DC power output by the first battery into AC power for the first external load.

[0101] The first end of the voltage conversion device is connected to the first battery, and the second end of the voltage conversion device is connected to the second external load. The voltage conversion device is used to convert the voltage of the first battery and output direct current to the second external load.

[0102] The AC / DC conversion device and the voltage conversion device are both complete vehicle devices that can be removed from the vehicle.

[0103] At least a portion of one of the AC / DC converter and the voltage converter is an off-vehicle device.

[0104] The vehicle-mounted power supply provided in this embodiment is a battery in the vehicle's battery system that can be removed from the vehicle and forms a mobile power supply together with a voltage conversion device and an AC / DC conversion device. The voltage conversion device can convert the battery voltage and output DC power to power external loads. The AC / DC conversion device can convert the battery's DC power into AC power to power external loads. This allows the vehicle's battery system to be fully utilized when in an idle state, while meeting the owner's external DC power needs and improving the owner's car-using experience.

[0105] Example 2

[0106] See the structural block diagram of the vehicle-mounted power supply of this embodiment for Figure 2 .

[0107] The AC / DC converter is the vehicle's AC / DC converter. It consists of a high-voltage DC / low-voltage DC, a high-voltage DC / DC, a high-voltage AC / DC, and an AC output assembly, all connected in sequence. The high-voltage DC / low-voltage DC, high-voltage DC / DC, high-voltage AC / DC, and AC output assembly form a complete, removable unit.

[0108] The voltage conversion device comprises the vehicle's low-voltage output assembly. This assembly includes a switch control circuit and a voltage conversion circuit. Both the switch control circuit and the voltage conversion circuit are complete, removable components.

[0109] Figure 3 A schematic diagram of the battery system after the first battery, AC / DC converter, and voltage converter are removed from the vehicle's battery system is shown. The dashed box 1 indicates the location of the first battery in the vehicle's battery system. The dashed box 2 indicates the location of the high-voltage DC / low-voltage DC in the vehicle's battery system. The dashed box 3 indicates the location of the high-voltage DC / DC in the vehicle's battery system. The dashed box 4 indicates the location of the high-voltage AC / DC in the vehicle's battery system. The dashed box 5 indicates the location of the AC output assembly in the vehicle's battery system. The dashed box 6 indicates the location of the low-voltage output assembly in the vehicle's battery system.

[0110] See also Figure 2 In the vehicle power supply, the first end of the high-voltage DC / low-voltage DC is connected to the first battery, the second end of the high-voltage DC / low-voltage DC is connected to the first end of the high-voltage DC / DC, the second end of the high-voltage DC / DC is connected to the first end of the high-voltage AC / DC, the second end of the high-voltage AC / DC is connected to the first end of the AC output assembly, and the second end of the AC output assembly is connected to the first external load. The first end of the low-voltage output assembly is connected to the first battery, and the second end of the low-voltage output assembly is connected to the second external load.

[0111] See also Figure 4The high-voltage DC / low-voltage DC includes a first primary-side conversion circuit, a first isolation conversion circuit, and a first secondary-side conversion circuit.

[0112] The high-voltage DC / DC converter includes a second primary-side conversion circuit, a second isolation conversion circuit, and a second secondary-side conversion circuit. The high-voltage AC / DC converter includes a power factor correction circuit. The AC output assembly includes a switch control circuit.

[0113] The first end of the first secondary conversion circuit is connected to the first battery, the second end of the first secondary conversion circuit is connected to the first end of the first isolation conversion circuit, the second end of the first isolation conversion circuit is connected to the first end of the first primary conversion circuit, and the second end of the first primary conversion circuit is connected to the first end of the second secondary conversion circuit.

[0114] The second end of the second secondary conversion circuit is connected to the first end of the second isolation conversion circuit, the second end of the second isolation conversion circuit is connected to the first end of the second primary conversion circuit, the second end of the second primary conversion circuit is connected to the first end of the power factor correction circuit, the second end of the power factor correction circuit is connected to the first end of the switch control circuit, and the switch control circuit is connected to the first external vehicle load.

[0115] The first secondary conversion circuit is configured to receive direct current (DC) power from the first battery, convert the DC power into alternating current (AC) power, and transmit the resultant power to the secondary winding of the first isolation conversion circuit. The first isolation conversion circuit is configured to receive AC power having a first voltage from the first secondary conversion circuit via the secondary winding, generate AC power having a second voltage on the primary winding, and transmit the resultant power to the first primary conversion circuit. The first primary conversion circuit is configured to receive AC power from the primary winding, convert the AC power into DC power, and transmit the resultant power to the second secondary conversion circuit.

[0116] The second secondary conversion circuit is used to receive direct current (DC) from the first primary conversion circuit, convert the DC power into alternating current (AC), and transmit the resultant power to the secondary winding of the second isolated conversion circuit. The second isolated conversion circuit is used to receive AC power having a third voltage from the second secondary conversion circuit via the secondary winding, generate AC power having a fourth voltage on the primary winding, and transmit the resultant power to the second primary conversion circuit. The second primary conversion circuit is used to receive AC power from the primary winding, convert the AC power into DC power, and transmit the resultant power to the power factor correction circuit. The power factor correction circuit is used to convert the DC power received from the second primary conversion circuit into AC power. The AC power from the power factor correction circuit is transmitted to the first external load via the switch control circuit of the AC power output assembly.

[0117] In the vehicle power supply, the vehicle's low-voltage output assembly includes a switch control circuit and a voltage conversion circuit. The first terminal of the switch control circuit is connected to the first battery. The first terminal of the voltage conversion circuit is connected to the second terminal of the switch control circuit, and the second terminal of the voltage conversion circuit is connected to the second external load.

[0118] The vehicle's low-voltage output assembly includes a control switch and a voltage conversion circuit.

[0119] The vehicle's low-voltage output assembly includes multiple switch control circuits and multiple voltage conversion circuits. Each switch control circuit and its corresponding voltage conversion circuit form a branch circuit. The first end of each branch circuit is connected to the first battery, and the second end of each branch circuit is connected to the corresponding second external load. In this way, the vehicle's low-voltage output assembly is configured to convert the voltage of the first battery into different voltages, thereby supplying power to the second external loads with different voltages.

[0120] The vehicle low-voltage output assembly can step down the voltage of the first battery and output direct current to the second external load, or it can step up the voltage of the first battery and output direct current to the second external load.

[0121] For example, the voltage of the first battery is 12V, and the low-voltage output assembly of the vehicle can convert the 12V voltage of the first battery into 5V to supply power to a load with a power voltage of 5V.

[0122] For another example, the voltage of the first battery is 12V, and the vehicle low-voltage output assembly can convert the 12V voltage of the first battery into 24V to supply power to a load that consumes 24V.

[0123] Example 3

[0124] See the structural block diagram of the vehicle-mounted power supply of this embodiment for Figure 5 .

[0125] The AC / DC converter is the vehicle's AC / DC converter, which includes a high-voltage DC / low-voltage DC, a high-voltage DC / DC, a high-voltage AC / DC, and an AC output assembly connected in sequence.

[0126] The voltage conversion device is an off-vehicle device. It includes a first voltage conversion circuit and at least one low-voltage output assembly, which are interconnected. The low-voltage output assembly includes a switch control circuit and a second voltage conversion circuit, which are interconnected. A first end of the first voltage conversion circuit is connected to a high-voltage DC / low-voltage DC source, a second end of the first voltage conversion circuit is connected to a first end of the switch control circuit, a second end of the switch control circuit is connected to a first end of the second voltage conversion circuit, and a second end of the voltage conversion circuit is connected to a second off-vehicle load.

[0127] The high-voltage DC / low-voltage DC, high-voltage DC / DC, high-voltage AC / DC, and AC output assemblies are all complete vehicle devices that can be removed from the vehicle. The first voltage conversion circuit and at least one low-voltage output assembly are off-vehicle devices.

[0128] Figure 6 A schematic diagram of the battery system after the first battery, AC / DC converter, and voltage converter are removed from the vehicle's battery system is shown. The dashed box 1 represents the location of the first battery in the vehicle's battery system. The dashed box 2 represents the location of the high-voltage DC / low-voltage DC in the vehicle's battery system. The dashed box 3 represents the location of the high-voltage DC / DC in the vehicle's battery system. The dashed box 4 represents the location of the high-voltage AC / DC in the vehicle's battery system. The dashed box 5 represents the location of the AC output assembly in the vehicle's battery system.

[0129] See also Figure 5 In the vehicle power supply, the first end of the high-voltage DC / low-voltage DC is connected to the first battery, the second end of the high-voltage DC / low-voltage DC is connected to the first end of the high-voltage DC / DC, the second end of the high-voltage DC / DC is connected to the first end of the high-voltage AC / DC, the second end of the high-voltage AC / DC is connected to the first end of the AC output assembly, and the second end of the AC output assembly is connected to a first external load. The first end of the first voltage conversion circuit is connected to the high-voltage DC / low-voltage DC, and the second end of the first voltage conversion circuit is connected to the first end of the first low-voltage output assembly and the first end of the second low-voltage output assembly respectively. The second end of the first low-voltage output assembly is connected to a second external load. The second end of the second low-voltage output assembly is connected to a second external load.

[0130] See also Figure 4 The high-voltage DC / low-voltage DC includes a first primary-side conversion circuit, a first isolation conversion circuit, and a first secondary-side conversion circuit.

[0131] The high-voltage DC / DC converter includes a second primary-side conversion circuit, a second isolation conversion circuit, and a second secondary-side conversion circuit. The high-voltage AC / DC converter includes a power factor correction circuit. The AC output assembly includes a switch control circuit.

[0132] The first end of the first secondary conversion circuit is connected to the first battery, the second end of the first secondary conversion circuit is connected to the first end of the first isolation conversion circuit, the second end of the first isolation conversion circuit is connected to the first end of the first primary conversion circuit, and the second end of the first primary conversion circuit is connected to the first end of the second secondary conversion circuit.

[0133] The second end of the second secondary conversion circuit is connected to the first end of the second isolation conversion circuit, the second end of the second isolation conversion circuit is connected to the first end of the second primary conversion circuit, the second end of the second primary conversion circuit is connected to the first end of the power factor correction circuit, the second end of the power factor correction circuit is connected to the first end of the switch control circuit, and the switch control circuit is connected to the first external vehicle load.

[0134] The first secondary conversion circuit is configured to receive direct current (DC) power from the first battery, convert the DC power into alternating current (AC) power, and transmit the resultant power to the secondary winding of the first isolation conversion circuit. The first isolation conversion circuit is configured to receive AC power having a first voltage from the first secondary conversion circuit via the secondary winding, generate AC power having a second voltage on the primary winding, and transmit the resultant power to the first primary conversion circuit. The first primary conversion circuit is configured to receive AC power from the primary winding, convert the AC power into DC power, and transmit the resultant power to the second secondary conversion circuit.

[0135] The second secondary conversion circuit is used to receive direct current (DC) from the first primary conversion circuit, convert the DC power into alternating current (AC), and transmit the resultant power to the secondary winding of the second isolated conversion circuit. The second isolated conversion circuit is used to receive AC power having a third voltage from the second secondary conversion circuit via the secondary winding, generate AC power having a fourth voltage on the primary winding, and transmit the resultant power to the second primary conversion circuit. The second primary conversion circuit is used to receive AC power from the primary winding, convert the AC power into DC power, and transmit the resultant power to the power factor correction circuit. The power factor correction circuit is used to convert the DC power received from the second primary conversion circuit into AC power. The AC power from the power factor correction circuit is transmitted to the first external load via the switch control circuit of the AC power output assembly.

[0136] In the vehicle power supply, the low-voltage output assembly includes a control switch and a voltage conversion circuit.

[0137] The low-voltage output assembly includes multiple switch control circuits and multiple voltage conversion circuits. Each switch control circuit and its corresponding voltage conversion circuit form a branch. The first end of each branch is connected to the first battery, and the second end of each branch is connected to a corresponding second external load. In this way, the low-voltage output assembly is configured to convert the voltage of the first battery to different voltages, thereby supplying power to the second external loads with different voltages.

[0138] The low-voltage output assembly can step down the voltage of the first battery and output direct current to the second external load, or can step up the voltage of the first battery and output direct current to the second external load.

[0139] For example, the voltage of the first battery is 12V, and the low-voltage output assembly can convert the 12V voltage of the first battery into 5V to supply power to a load that consumes 5V.

[0140] For another example, the voltage of the first battery is 12V, and the low-voltage output assembly can convert the 12V voltage of the first battery into 24V to supply power to a load that consumes 24V.

[0141] Example 4

[0142] See the structural block diagram of the vehicle-mounted power supply of this embodiment for Figure 7 .

[0143] The AC / DC converter is the vehicle's AC / DC converter, which includes a high-voltage DC / low-voltage DC, a high-voltage DC / DC, a high-voltage AC / DC, and an AC output assembly connected in sequence.

[0144] The voltage conversion device is an external device. It includes a low-voltage output assembly. The low-voltage output assembly includes a switch control circuit and a voltage conversion circuit. A first terminal of the switch control circuit is connected to the first battery, a second terminal of the switch control circuit is connected to a first terminal of the voltage conversion circuit, and a second terminal of the voltage conversion circuit is connected to a second external load.

[0145] The high-voltage DC / low-voltage DC, high-voltage DC / DC, high-voltage AC / DC, and AC output assemblies are all completely removable components. The switch control circuit and voltage conversion circuit are external components.

[0146] Figure 6 A schematic diagram of the battery system after the first battery, AC / DC converter, and voltage converter are removed from the vehicle's battery system is shown. The dashed box 1 represents the location of the first battery in the vehicle's battery system. The dashed box 2 represents the location of the high-voltage DC / low-voltage DC in the vehicle's battery system. The dashed box 3 represents the location of the high-voltage DC / DC in the vehicle's battery system. The dashed box 4 represents the location of the high-voltage AC / DC in the vehicle's battery system. The dashed box 5 represents the location of the AC output assembly in the vehicle's battery system.

[0147] See also Figure 7 In the vehicle power supply, the first end of the high-voltage DC / low-voltage DC is connected to the first battery, the second end of the high-voltage DC / low-voltage DC is connected to the first end of the high-voltage DC / DC, the second end of the high-voltage DC / DC is connected to the first end of the high-voltage AC / DC, the second end of the high-voltage AC / DC is connected to the first end of the AC output assembly, and the second end of the AC output assembly is connected to the first external load. The first end of the low-voltage output assembly is connected to the first battery, and the second end of the low-voltage output assembly is connected to the second external load.

[0148] See also Figure 4The high-voltage DC / low-voltage DC includes a first primary-side conversion circuit, a first isolation conversion circuit, and a first secondary-side conversion circuit.

[0149] The high-voltage DC / DC converter includes a second primary-side conversion circuit, a second isolation conversion circuit, and a second secondary-side conversion circuit. The high-voltage AC / DC converter includes a power factor correction circuit. The AC output assembly includes a switch control circuit.

[0150] The first end of the first secondary conversion circuit is connected to the first battery, the second end of the first secondary conversion circuit is connected to the first end of the first isolation conversion circuit, the second end of the first isolation conversion circuit is connected to the first end of the first primary conversion circuit, and the second end of the first primary conversion circuit is connected to the first end of the second secondary conversion circuit.

[0151] The second end of the second secondary conversion circuit is connected to the first end of the second isolation conversion circuit, the second end of the second isolation conversion circuit is connected to the first end of the second primary conversion circuit, the second end of the second primary conversion circuit is connected to the first end of the power factor correction circuit, the second end of the power factor correction circuit is connected to the first end of the switch control circuit, and the switch control circuit is connected to the first external vehicle load.

[0152] The first secondary conversion circuit is configured to receive direct current (DC) power from the first battery, convert the DC power into alternating current (AC) power, and transmit the resultant power to the secondary winding of the first isolation conversion circuit. The first isolation conversion circuit is configured to receive AC power having a first voltage from the first secondary conversion circuit via the secondary winding, generate AC power having a second voltage on the primary winding, and transmit the resultant power to the first primary conversion circuit. The first primary conversion circuit is configured to receive AC power from the primary winding, convert the AC power into DC power, and transmit the resultant power to the second secondary conversion circuit.

[0153] The second secondary conversion circuit is used to receive direct current (DC) from the first primary conversion circuit, convert the DC power into alternating current (AC), and transmit the resultant power to the secondary winding of the second isolated conversion circuit. The second isolated conversion circuit is used to receive AC power having a third voltage from the second secondary conversion circuit via the secondary winding, generate AC power having a fourth voltage on the primary winding, and transmit the resultant power to the second primary conversion circuit. The second primary conversion circuit is used to receive AC power from the primary winding, convert the AC power into DC power, and transmit the resultant power to the power factor correction circuit. The power factor correction circuit is used to convert the DC power received from the second primary conversion circuit into AC power. The AC power from the power factor correction circuit is transmitted to the first external load via the switch control circuit of the AC power output assembly.

[0154] In the vehicle power supply, the low-voltage output assembly includes a control switch and a voltage conversion circuit.

[0155] The low-voltage output assembly includes multiple switch control circuits and multiple voltage conversion circuits. Each switch control circuit and its corresponding voltage conversion circuit form a branch. The first end of each branch is connected to the first battery, and the second end of each branch is connected to a corresponding second external load. In this way, the low-voltage output assembly is configured to convert the voltage of the first battery to different voltages, thereby supplying power to the second external loads with different voltages.

[0156] The low-voltage output assembly can step down the voltage of the first battery and output direct current to the second external load, or can step up the voltage of the first battery and output direct current to the second external load.

[0157] For example, the voltage of the first battery is 12V, and the low-voltage output assembly can convert the 12V voltage of the first battery into 5V to supply power to a load that consumes 5V.

[0158] For another example, the voltage of the first battery is 12V, and the low-voltage output assembly can convert the 12V voltage of the first battery into 24V to supply power to a load that consumes 24V.

[0159] Example 5

[0160] See the structural block diagram of the vehicle-mounted power supply of this embodiment for Figure 8 .

[0161] The AC / DC conversion device includes: a high-voltage DC / DC, a high-voltage AC / DC and an AC output assembly connected in sequence.

[0162] The voltage conversion device includes a low-voltage output assembly for the vehicle. The low-voltage output assembly includes a switch control circuit and a voltage conversion circuit. A first terminal of the switch control circuit is connected to a first battery, a second terminal of the switch control circuit is connected to a first terminal of the voltage conversion circuit, and a second terminal of the voltage conversion circuit is connected to a second external load.

[0163] The high-voltage DC / low-voltage DC, high-voltage DC / DC, high-voltage AC / DC, and AC output assemblies are all off-board devices. The switch control circuit and voltage conversion circuit are complete vehicle units that can be removed from the vehicle.

[0164] Figure 9 A schematic diagram of the battery system is shown after the first battery and low-voltage output assembly are removed from the vehicle's battery system. The dashed box 1 represents the location of the first battery in the vehicle's battery system. The dashed box 2 represents the location of the low-voltage output assembly in the vehicle's battery system.

[0165] See also Figure 8In the vehicle power supply, a first terminal of the high-voltage DC / DC is connected to the first battery, a second terminal of the high-voltage DC / DC is connected to the first terminal of the high-voltage AC / DC, a second terminal of the high-voltage AC / DC is connected to the first terminal of the AC output assembly, and a second terminal of the AC output assembly is connected to a first external load. A first terminal of the low-voltage output assembly is connected to the first battery, and a second terminal of the low-voltage output assembly is connected to a second external load.

[0166] See also Figure 10 The high-voltage DC / DC converter includes a first secondary-side conversion circuit, a first isolation conversion circuit, and a first primary-side conversion circuit. The high-voltage AC / DC converter includes a power factor correction circuit. The AC output assembly includes a switch control circuit.

[0167] The first end of the first secondary conversion circuit is connected to the first battery, the second end of the first secondary conversion circuit is connected to the first end of the first isolation conversion circuit, the second end of the first isolation conversion circuit is connected to the first end of the first primary conversion circuit, the second end of the first primary conversion circuit is connected to the first end of the power factor correction circuit, the second end of the power factor correction circuit is connected to the first end of the switch control circuit, and the second end of the switch control circuit is connected to the first external vehicle load.

[0168] The first secondary conversion circuit is used to receive direct current (DC) power from the first battery, convert the DC power into alternating current (AC) power, and transmit it to the secondary winding of the first isolation conversion circuit. The first isolation conversion circuit is used to receive AC power having a first voltage from the first secondary conversion circuit via the secondary winding, generate AC power having a second voltage on the primary winding, and transmit it to the first primary conversion circuit. The first primary conversion circuit is used to receive AC power from the primary winding, convert the AC power into DC power, and transmit it to the power factor correction circuit. The power factor correction circuit is used to convert the DC power received from the first primary conversion circuit into AC power. The AC power from the power factor correction circuit is transmitted to the first external load via the switch control circuit of the AC power output assembly.

[0169] In the vehicle power supply, the low-voltage output assembly includes a control switch and a voltage conversion circuit.

[0170] The low-voltage output assembly includes multiple switch control circuits and multiple voltage conversion circuits. Each switch control circuit and its corresponding voltage conversion circuit form a branch. The first end of each branch is connected to the first battery, and the second end of each branch is connected to a corresponding second external load. In this way, the low-voltage output assembly is configured to convert the voltage of the first battery to different voltages, thereby supplying power to the second external loads with different voltages.

[0171] The low-voltage output assembly can step down the voltage of the first battery and output direct current to the second external load, or can step up the voltage of the first battery and output direct current to the second external load.

[0172] For example, the voltage of the first battery is 12V, and the low-voltage output assembly can convert the 12V voltage of the first battery into 5V to supply power to a load that consumes 5V.

[0173] For another example, the voltage of the first battery is 12V, and the low-voltage output assembly can convert the 12V voltage of the first battery into 24V to supply power to a load that consumes 24V.

[0174] Example 6

[0175] See the structural block diagram of the vehicle-mounted power supply of this embodiment for Figure 11 .

[0176] The AC / DC converter is a vehicle's AC / DC converter, which includes a high-voltage DC / DC, a high-voltage AC / DC, and an AC output assembly connected in sequence.

[0177] The voltage conversion device is a voltage conversion device for a vehicle, and includes a high-voltage DC / low-voltage DC and a low-voltage output assembly that are interconnected.

[0178] High-voltage DC / DC, high-voltage AC / DC, AC output assembly, high-voltage DC / low-voltage DC, and low-voltage output assembly are all complete vehicle units that can be removed from the vehicle.

[0179] Figure 12 A schematic diagram of the battery system after the first battery, AC / DC converter, and voltage converter are removed from the vehicle's battery system is shown. The dashed box 1 indicates the location of the first battery in the vehicle's battery system. The dashed box 2 indicates the location of the high-voltage DC / low-voltage DC in the vehicle's battery system. The dashed box 3 indicates the location of the high-voltage DC / DC in the vehicle's battery system. The dashed box 4 indicates the location of the high-voltage AC / DC in the vehicle's battery system. The dashed box 5 indicates the location of the AC output assembly in the vehicle's battery system. The dashed box 6 indicates the location of the low-voltage output assembly in the vehicle's battery system.

[0180] See also Figure 11In the vehicle power supply, a first terminal of the high-voltage DC / DC is connected to the first battery, a second terminal of the high-voltage DC / DC is connected to the first terminal of the high-voltage AC / DC, a second terminal of the high-voltage AC / DC is connected to the first terminal of the AC output assembly, and a second terminal of the AC output assembly is connected to a first external load. A first terminal of the high-voltage DC / low-voltage DC is connected to the first battery, a second terminal of the high-voltage DC / low-voltage DC is connected to the first terminal of the low-voltage output assembly, and a second terminal of the low-voltage output assembly is connected to a second external load.

[0181] See also Figure 10 The high-voltage DC / DC converter includes a first primary-side conversion circuit, a first isolation conversion circuit, and a first secondary-side conversion circuit. The high-voltage AC / DC converter includes a power factor correction circuit. The AC output assembly includes a switch control circuit.

[0182] The first end of the first secondary conversion circuit is connected to the first battery, the second end of the first secondary conversion circuit is connected to the first end of the first isolation conversion circuit, the second end of the first isolation conversion circuit is connected to the first end of the first primary conversion circuit, the second end of the first primary conversion circuit is connected to the first end of the power factor correction circuit, the second end of the power factor correction circuit is connected to the first end of the switch control circuit, and the switch control circuit is connected to the first external vehicle load.

[0183] The first secondary conversion circuit is used to receive direct current (DC) power from the first battery, convert the DC power into alternating current (AC) power, and transmit it to the secondary winding of the first isolation conversion circuit. The first isolation conversion circuit is used to receive AC power having a first voltage from the first secondary conversion circuit via the secondary winding, generate AC power having a second voltage on the primary winding, and transmit it to the first primary conversion circuit. The first primary conversion circuit is used to receive AC power from the primary winding, convert the AC power into DC power, and transmit it to the power factor correction circuit. The power factor correction circuit is used to convert the DC power received from the first primary conversion circuit into AC power. The AC power from the power factor correction circuit is transmitted to the first external load via the switch control circuit of the AC power output assembly.

[0184] See also Figure 13 The high-voltage DC / low-voltage DC includes a second primary-side conversion circuit, a second isolation conversion circuit, and a second secondary-side conversion circuit.

[0185] The second primary conversion circuit is configured to receive direct current (DC) power from the first battery, convert the DC power into alternating current (AC) power, and transmit the resultant power to the primary winding of the second isolated conversion circuit. The second isolated conversion circuit is configured to receive AC power having a third voltage from the second primary conversion circuit via the primary winding, generate AC power having a fourth voltage on the secondary winding, and transmit the resultant power to the second secondary conversion circuit. The second secondary conversion circuit is configured to receive AC power from the secondary winding, convert the AC power into DC power, and transmit the resultant power to the switch control circuit. Through the switch control circuit, the voltage conversion circuit receives DC power from the second secondary conversion circuit, converts the voltage of the DC power, and outputs the resultant power to the second external load.

[0186] In the vehicle power supply, the low-voltage output assembly includes a control switch and a voltage conversion circuit.

[0187] The low-voltage output assembly includes multiple switch control circuits and multiple voltage conversion circuits. Each switch control circuit and its corresponding voltage conversion circuit form a branch. The first end of each branch is connected to the first battery, and the second end of each branch is connected to a corresponding second external load. In this way, the low-voltage output assembly is configured to convert the voltage of the first battery to different voltages, thereby supplying power to the second external loads with different voltages.

[0188] Example 7

[0189] See the structural block diagram of the vehicle-mounted power supply of this embodiment for Figure 14 .

[0190] The AC / DC converter is a vehicle's AC / DC converter, which includes a high-voltage DC / DC, a high-voltage AC / DC, and an AC output assembly connected in sequence.

[0191] The voltage conversion device is an off-board device and includes a high-voltage DC / low-voltage DC and a low-voltage output assembly that are interconnected.

[0192] The high-voltage DC / DC, high-voltage AC / DC, and AC output assemblies are all complete vehicle units that can be removed from the vehicle. The high-voltage DC / low-voltage DC and low-voltage output assemblies are external units.

[0193] Figure 15 A schematic diagram of the battery system is shown after the first battery, AC / DC converter, and voltage converter are removed from the vehicle's battery system. The dashed box 1 represents the location of the first battery in the vehicle's battery system. The dashed box 2 represents the location of the high-voltage DC / DC converter in the vehicle's battery system. The dashed box 3 represents the location of the high-voltage AC / DC converter in the vehicle's battery system. The dashed box 4 represents the location of the AC power output assembly in the vehicle's battery system.

[0194] See also Figure 14 In the vehicle power supply, a first terminal of the high-voltage DC / DC is connected to the first battery, a second terminal of the high-voltage DC / DC is connected to the first terminal of the high-voltage AC / DC, a second terminal of the high-voltage AC / DC is connected to the first terminal of the AC output assembly, and a second terminal of the AC output assembly is connected to a first external load. A first terminal of the high-voltage DC / low-voltage DC is connected to the first battery, a second terminal of the high-voltage DC / low-voltage DC is connected to the first terminal of the low-voltage output assembly, and a second terminal of the low-voltage output assembly is connected to a second external load.

[0195] See also Figure 10 The high-voltage DC / DC converter includes a first primary-side conversion circuit, a first isolation conversion circuit, and a first secondary-side conversion circuit. The high-voltage AC / DC converter includes a power factor correction circuit. The AC output assembly includes a switch control circuit.

[0196] The first end of the first secondary conversion circuit is connected to the first battery, the second end of the first secondary conversion circuit is connected to the first end of the first isolation conversion circuit, the second end of the first isolation conversion circuit is connected to the first end of the first primary conversion circuit, the second end of the first primary conversion circuit is connected to the first end of the power factor correction circuit, the second end of the power factor correction circuit is connected to the first end of the switch control circuit, and the switch control circuit is connected to the first external vehicle load.

[0197] The first secondary conversion circuit is used to receive direct current (DC) power from the first battery, convert the DC power into alternating current (AC) power, and transmit it to the secondary winding of the first isolation conversion circuit. The first isolation conversion circuit is used to receive AC power having a first voltage from the first secondary conversion circuit via the secondary winding, generate AC power having a second voltage on the primary winding, and transmit it to the first primary conversion circuit. The first primary conversion circuit is used to receive AC power from the primary winding, convert the AC power into DC power, and transmit it to the power factor correction circuit. The power factor correction circuit is used to convert the DC power received from the first primary conversion circuit into AC power. The AC power from the power factor correction circuit is transmitted to the first external load via the switch control circuit of the AC power output assembly.

[0198] See also Figure 13 The high-voltage DC / low-voltage DC includes a second primary-side conversion circuit, a second isolation conversion circuit, and a second secondary-side conversion circuit.

[0199] The second primary conversion circuit is configured to receive direct current (DC) power from the first battery, convert the DC power into alternating current (AC) power, and transmit the resultant power to the primary winding of the second isolated conversion circuit. The second isolated conversion circuit is configured to receive AC power having a third voltage from the second primary conversion circuit via the primary winding, generate AC power having a fourth voltage on the secondary winding, and transmit the resultant power to the second secondary conversion circuit. The second secondary conversion circuit is configured to receive AC power from the secondary winding, convert the AC power into DC power, and transmit the resultant power to the switch control circuit. Through the switch control circuit, the voltage conversion circuit receives DC power from the second secondary conversion circuit, converts the voltage of the DC power, and outputs the resultant power to the second external load.

[0200] In the vehicle power supply, the low-voltage output assembly includes a control switch and a voltage conversion circuit.

[0201] The low-voltage output assembly includes multiple switch control circuits and multiple voltage conversion circuits. Each switch control circuit and its corresponding voltage conversion circuit form a branch. The first end of each branch is connected to the first battery, and the second end of each branch is connected to a corresponding second external load. In this way, the low-voltage output assembly is configured to convert the voltage of the first battery to different voltages, thereby supplying power to the second external loads with different voltages.

[0202] Example 8

[0203] See the structural block diagram of the vehicle-mounted power supply of this embodiment for Figure 16 .

[0204] The AC / DC converter is a vehicle's AC / DC converter, which includes a high-voltage DC / DC, a high-voltage AC / DC, and an AC output assembly connected in sequence.

[0205] The voltage conversion device includes a high-voltage DC / low-voltage DC and a low-voltage output assembly that are interconnected. The high-voltage DC / low-voltage DC is the vehicle's high-voltage DC / low-voltage DC, and the low-voltage output assembly is an external device.

[0206] The high-voltage DC / DC, high-voltage AC / DC, and AC output assembly are all complete vehicle units that can be removed from the vehicle. The high-voltage DC / low-voltage DC is a complete vehicle unit that can be removed from the vehicle, and the low-voltage output assembly is an external device.

[0207] Figure 17A schematic diagram of the battery system after the first battery, AC / DC converter, and voltage converter are removed from the vehicle's battery system is shown. The dashed box 1 represents the location of the first battery in the vehicle's battery system. The dashed box 2 represents the location of the high-voltage DC / low-voltage DC in the vehicle's battery system. The dashed box 3 represents the location of the high-voltage DC / DC in the vehicle's battery system. The dashed box 4 represents the location of the high-voltage AC / DC in the vehicle's battery system. The dashed box 5 represents the location of the AC output assembly in the vehicle's battery system.

[0208] See also Figure 16 In the vehicle power supply, a first terminal of the high-voltage DC / DC is connected to the first battery, a second terminal of the high-voltage DC / DC is connected to the first terminal of the high-voltage AC / DC, a second terminal of the high-voltage AC / DC is connected to the first terminal of the AC output assembly, and a second terminal of the AC output assembly is connected to a first external load. A first terminal of the high-voltage DC / low-voltage DC is connected to the first battery, a second terminal of the high-voltage DC / low-voltage DC is connected to the first terminal of the low-voltage output assembly, and a second terminal of the low-voltage output assembly is connected to a second external load.

[0209] See also Figure 10 The high-voltage DC / DC converter includes a first primary-side conversion circuit, a first isolation conversion circuit, and a first secondary-side conversion circuit. The high-voltage AC / DC converter includes a power factor correction circuit. The AC output assembly includes a switch control circuit.

[0210] The first end of the first secondary conversion circuit is connected to the first battery, the second end of the first secondary conversion circuit is connected to the first end of the first isolation conversion circuit, the second end of the first isolation conversion circuit is connected to the first end of the first primary conversion circuit, the second end of the first primary conversion circuit is connected to the first end of the power factor correction circuit, the second end of the power factor correction circuit is connected to the first end of the switch control circuit, and the switch control circuit is connected to the first external vehicle load.

[0211] The first secondary conversion circuit is used to receive direct current (DC) power from the first battery, convert the DC power into alternating current (AC) power, and transmit it to the secondary winding of the first isolation conversion circuit. The first isolation conversion circuit is used to receive AC power having a first voltage from the first secondary conversion circuit via the secondary winding, generate AC power having a second voltage on the primary winding, and transmit it to the first primary conversion circuit. The first primary conversion circuit is used to receive AC power from the primary winding, convert the AC power into DC power, and transmit it to the power factor correction circuit. The power factor correction circuit is used to convert the DC power received from the first primary conversion circuit into AC power. The AC power from the power factor correction circuit is transmitted to the first external load via the switch control circuit of the AC power output assembly.

[0212] See also Figure 13 The high-voltage DC / low-voltage DC includes a second primary-side conversion circuit, a second isolation conversion circuit, and a second secondary-side conversion circuit.

[0213] The second primary conversion circuit is configured to receive direct current (DC) power from the first battery, convert the DC power into alternating current (AC) power, and transmit the resultant power to the primary winding of the second isolated conversion circuit. The second isolated conversion circuit is configured to receive AC power having a third voltage from the second primary conversion circuit via the primary winding, generate AC power having a fourth voltage on the secondary winding, and transmit the resultant power to the second secondary conversion circuit. The second secondary conversion circuit is configured to receive AC power from the secondary winding, convert the AC power into DC power, and transmit the resultant power to the switch control circuit. Through the switch control circuit, the voltage conversion circuit receives DC power from the second secondary conversion circuit, converts the voltage of the DC power, and outputs the resultant power to the second external load.

[0214] In the vehicle power supply, the low-voltage output assembly includes a control switch and a voltage conversion circuit.

[0215] The low-voltage output assembly includes multiple switch control circuits and multiple voltage conversion circuits. Each switch control circuit and its corresponding voltage conversion circuit form a branch. The first end of each branch is connected to the first battery, and the second end of each branch is connected to a corresponding second external load. In this way, the low-voltage output assembly is configured to convert the voltage of the first battery to different voltages, thereby supplying power to the second external loads with different voltages.

[0216] Example 9

[0217] See the structural block diagram of the vehicle-mounted power supply of this embodiment for Figure 18 .

[0218] The AC / DC converter is a vehicle's AC / DC converter, which includes a high-voltage DC / DC, a high-voltage AC / DC, and an AC output assembly connected in sequence.

[0219] The voltage conversion device is an off-board device. It includes interconnected high-voltage DC / low-voltage DC and a low-voltage output assembly. The first end of the high-voltage DC / low-voltage DC is connected to the high-voltage DC / DC, and the second end of the high-voltage DC / low-voltage DC is connected to the low-voltage output assembly.

[0220] This is a complete vehicle unit in which the high-voltage DC / DC, high-voltage AC / DC, and current output assembly can be removed from the vehicle. The voltage conversion device is an external device.

[0221] Figure 15A schematic diagram of the battery system is shown after the first battery, AC / DC converter, and voltage converter are removed from the vehicle's battery system. The dashed box 1 represents the location of the first battery in the vehicle's battery system. The dashed box 2 represents the location of the high-voltage DC / DC converter in the vehicle's battery system. The dashed box 3 represents the location of the high-voltage AC / DC converter in the vehicle's battery system. The dashed box 4 represents the location of the AC power output assembly in the vehicle's battery system.

[0222] See also Figure 18 In the vehicle power supply, a first terminal of the high-voltage DC / DC is connected to the first battery, a second terminal of the high-voltage DC / DC is connected to the first terminal of the high-voltage AC / DC, a second terminal of the high-voltage AC / DC is connected to the first terminal of the AC output assembly, and a second terminal of the AC output assembly is connected to a first external load. A first terminal of the high-voltage DC / low-voltage DC is connected to the high-voltage DC / DC, a second terminal of the high-voltage DC / low-voltage DC is connected to the first terminal of the low-voltage output assembly, and a second terminal of the low-voltage output assembly is connected to a second external load.

[0223] See also Figure 10 The high-voltage DC / DC converter includes a first primary-side conversion circuit, a first isolation conversion circuit, and a first secondary-side conversion circuit. The high-voltage AC / DC converter includes a power factor correction circuit. The AC output assembly includes a switch control circuit.

[0224] The first end of the first secondary conversion circuit is connected to the first battery, the second end of the first secondary conversion circuit is connected to the first end of the first isolation conversion circuit, the second end of the first isolation conversion circuit is connected to the first end of the first primary conversion circuit, the second end of the first primary conversion circuit is connected to the first end of the power factor correction circuit, the second end of the power factor correction circuit is connected to the first end of the switch control circuit, and the switch control circuit is connected to the first external vehicle load.

[0225] The first secondary conversion circuit is used to receive direct current (DC) power from the first battery, convert the DC power into alternating current (AC) power, and transmit it to the secondary winding of the first isolation conversion circuit. The first isolation conversion circuit is used to receive AC power having a first voltage from the first secondary conversion circuit via the secondary winding, generate AC power having a second voltage on the primary winding, and transmit it to the first primary conversion circuit. The first primary conversion circuit is used to receive AC power from the primary winding, convert the AC power into DC power, and transmit it to the power factor correction circuit. The power factor correction circuit is used to convert the DC power received from the first primary conversion circuit into AC power. The AC power from the power factor correction circuit is transmitted to the first external load via the switch control circuit of the AC power output assembly.

[0226] See also Figure 13The high-voltage DC / low-voltage DC includes a second primary-side conversion circuit, a second isolation conversion circuit, and a second secondary-side conversion circuit.

[0227] The second primary conversion circuit is configured to receive direct current (DC) from the first primary conversion circuit, convert the DC power into alternating current (AC), and transmit the resultant power to the primary winding of the second isolated conversion circuit. The second isolated conversion circuit is configured to receive AC power having a third voltage from the second primary conversion circuit via the primary winding, generate AC power having a fourth voltage on the secondary winding, and transmit the resultant power to the second secondary conversion circuit. The second secondary conversion circuit is configured to receive AC power from the secondary winding, convert the AC power into DC power, and transmit the resultant power to the switch control circuit. Through the switch control circuit, the voltage conversion circuit receives DC power from the second secondary conversion circuit, converts the voltage of the DC power, and outputs the resultant power to the second external load.

[0228] In the vehicle power supply, the low-voltage output assembly includes a control switch and a voltage conversion circuit.

[0229] The low-voltage output assembly includes multiple switch control circuits and multiple voltage conversion circuits. Each switch control circuit and its corresponding voltage conversion circuit form a branch. The first end of each branch is connected to the first battery, and the second end of each branch is connected to a corresponding second external load. In this way, the low-voltage output assembly is configured to convert the voltage of the first battery to different voltages, thereby supplying power to the second external loads with different voltages.

[0230] <Embodiment of Battery System for Vehicle>

[0231] Example 1

[0232] One embodiment of the present invention provides a battery system for a vehicle.

[0233] The battery system of the vehicle of this embodiment includes the first battery and the AC-DC conversion device provided in any of the above embodiments.

[0234] The first end of the AC / DC converter is connected to the first battery, and the second end of the AC / DC converter is connected to the AC load of the vehicle. The AC / DC converter is used to convert the DC power output by the first battery into AC power for the AC load.

[0235] In one embodiment, the battery system further includes a voltage conversion device. A first end of the voltage conversion device is connected to the first battery, and a second end of the voltage conversion device is adapted to be connected to a non-powered load of the vehicle. The voltage conversion device is configured to convert the voltage of the first battery and output direct current (DC) to the non-powered load of the vehicle.

[0236] Example 2

[0237] One embodiment of the present invention provides a battery system for a vehicle.

[0238] The vehicle battery system of this embodiment includes a first battery provided in any of the above embodiments and a voltage conversion device. A first terminal of the voltage conversion device is connected to the first battery, and a second terminal of the voltage conversion device is adapted to be connected to a non-powered load of the vehicle. The voltage conversion device is configured to convert the voltage of the first battery and output direct current (DC) to the non-powered load of the vehicle.

[0239] In one embodiment, the battery system further includes an AC / DC converter. A first end of the AC / DC converter is connected to the first battery, and a second end of the AC / DC converter is connected to an AC load of the vehicle. The AC / DC converter is configured to convert DC power output by the first battery into AC power for the AC load.

[0240] Example 3

[0241] Figure 19 Another schematic diagram of the vehicle's battery system is shown. Figure 19 The vehicle's battery system includes a first battery, a power distribution circuit, an AC / DC conversion device, and a voltage conversion device.

[0242] The power distribution circuit includes at least one fuse and at least one control switch.

[0243] The AC / DC converter includes a high-voltage DC / DC converter, a high-voltage AC / DC converter, and an AC output assembly. Specific circuit diagrams for the high-voltage DC / DC and high-voltage AC / DC converters can be found in the above embodiments. The AC output assembly includes a switch control circuit.

[0244] A first end of the high-voltage DC / DC is connected to the first battery, a second end of the high-voltage DC / DC is connected to a first end of the high-voltage AC / DC, a second end of the high-voltage AC / DC is connected to a first end of the AC power output assembly, and a second end of the AC power output assembly is connected to an AC power load.

[0245] The voltage conversion device includes a high voltage DC / low voltage DC and a low voltage output assembly connected to each other. For the specific circuit diagram of high voltage DC / low voltage DC, please refer to Figure 13 The low-voltage output assembly includes a switch control circuit and a voltage conversion circuit.

[0246] The first end of the high-voltage DC / low-voltage DC is connected to the first battery assembly, the second end of the high-voltage DC / low-voltage DC is connected to the first end of the low-voltage output assembly, and the second end of the low-voltage output assembly is connected to the non-power load of the vehicle.

[0247] The first battery outputs high-voltage AC power through a high-voltage DC / DC, a high-voltage AC / DC, and an AC output assembly to supply power to AC loads. The high-voltage AC power is within a high-voltage standard range, such as 220V and 380V.

[0248] The first battery supplies power to the vehicle's powertrain via a power distribution circuit. Specifically, the first battery assembly outputs high-voltage direct current (DC) to an inverter, which converts the DC power into high-voltage alternating current (AC) to drive the AC motor to deliver torque.

[0249] The first battery supplies power to the air-conditioning compressor and the PTC (Positive Temperature Coefficient) heater through a power distribution circuit.

[0250] See also Figure 19 The AC power output by the charging equipment is used to charge the power battery through the AC charging port via high-voltage AC / DC and high-voltage DC / DC.

[0251] Combine Figure 4 , the power factor correction circuit is used to receive AC power from the charging device, convert the AC power into DC power and transmit it to the second primary conversion circuit. The second primary conversion circuit is used to receive DC power from the power factor correction circuit, convert the DC power into AC power and transmit it to the second isolation conversion circuit. The second isolation conversion circuit is used to receive AC power with a voltage value of a first voltage from the second primary conversion circuit through the primary winding, and transmit it to the second secondary conversion circuit after generating AC power with a voltage value of a second voltage in the secondary winding. The second secondary conversion circuit is used to receive AC power from the secondary winding of the second isolation conversion circuit, convert the AC power into DC power and transmit it to the power battery assembly through the distribution circuit to charge the power battery.

[0252] The AC power output by the charging device is used to charge the non-power battery through the AC charging port via high-voltage AC / DC, high-voltage DC / DC, and high-voltage DC / low-voltage DC.

[0253] <Vehicle Example>

[0254] One embodiment of the present invention provides a vehicle, comprising the battery system of the vehicle according to any one of the above embodiments.

[0255] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments. For the electric vehicle embodiment, its related parts can be referred to the partial description of the method embodiment.

[0256] The foregoing description of this specification describes specific embodiments. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be performed in an order different from that described in the embodiments and still achieve the desired results. Furthermore, the processes depicted in the accompanying drawings do not necessarily require the specific order shown or the sequential order to achieve the desired results. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0257] The embodiments of this specification may be systems, methods, and / or computer program products. The computer program product may include a computer-readable storage medium carrying computer instructions for causing a processor to implement various aspects of the embodiments of this specification.

[0258] A computer-readable storage medium can be a tangible device that can hold and store computer instructions for use by a computer instruction execution device. A computer-readable storage medium can be, for example, but not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination thereof. More specific examples (a non-exhaustive list) of computer-readable storage media include: a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a static random access memory (SRAM), a portable compact disc read-only memory (CD-ROM), a digital versatile disk (DVD), a memory stick, a floppy disk, a mechanical encoding device, such as a punch card or a raised structure in a groove on which computer instructions are stored, and any suitable combination thereof. As used herein, a computer-readable storage medium is not to be construed as a transient signal per se, such as a radio wave or other freely propagating electromagnetic wave, an electromagnetic wave propagating through a waveguide or other transmission medium (e.g., a light pulse through a fiber optic cable), or an electrical signal transmitted through an electrical wire.

[0259] The computer instructions described herein can be downloaded from a computer-readable storage medium to each computing / processing device, or downloaded to an external computer or external storage device via a network, such as the Internet, a local area network, a wide area network, and / or a wireless network. The network can include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers, and / or edge servers. The network adapter card or network interface in each computing / processing device receives the computer instructions from the network and forwards the computer instructions to be stored in the computer-readable storage medium in each computing / processing device.

[0260] The flowcharts and block diagrams in the accompanying drawings show the possible implementation architectures, functions and operations of the systems, methods and computer program products according to multiple embodiments of this specification. In this regard, each box in the flowchart or block diagram can represent a module, program segment or part of a computer instruction, and the module, program segment or part of a computer instruction contains one or more executable computer instructions for implementing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in an order different from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flowchart, and the combination of boxes in the block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or can be implemented using a combination of dedicated hardware and computer instructions. It is well known to those skilled in the art that implementation by hardware, implementation by software, and implementation by a combination of software and hardware are all equivalent.

[0261] The embodiments of the present specification have been described above. The above description is illustrative and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to existing technologies, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A vehicle-mounted power supply, applied to a single-battery vehicle, wherein at least part of the device of the vehicle-mounted power supply is detachably connected to the vehicle, characterized in that: The vehicle-mounted power supply comprises: a first battery, the first battery being a battery of the vehicle, and the first battery being used to supply power to a first external load and / or a second external load when in a disassembled state; an AC / DC conversion device, wherein a first end of the AC / DC conversion device is connected to the first battery, a second end of the AC / DC conversion device is connected to the first external load, and the AC / DC conversion device is used to convert the DC power output by the first battery into AC power for the first external load; A voltage conversion device, wherein a first end of the voltage conversion device is connected to the first battery, and a second end of the voltage conversion device is connected to the second external load of the vehicle, and the voltage conversion device is used to convert the voltage of the first battery and output direct current to the second external load of the vehicle.

2. The vehicle-mounted power supply according to claim 1, characterized in that: The AC / DC conversion device and the voltage conversion device are both complete vehicle devices that can be removed from the vehicle.

3. The vehicle-mounted power supply according to claim 2, characterized in that: The AC / DC conversion device of the vehicle comprises: a high voltage DC / low voltage DC, a high voltage DC / DC, a high voltage AC / DC and an AC output assembly connected in sequence; The voltage conversion device includes a low-voltage output assembly of a vehicle, the low-voltage output assembly of the vehicle includes a switch control circuit and a voltage conversion circuit, a first end of the switch control circuit is connected to the first battery, a second end of the switch control circuit is connected to a first end of the voltage conversion circuit, and a second end of the voltage conversion circuit is connected to the second external load; The high-voltage DC / low-voltage DC, the high-voltage DC / DC, the high-voltage AC / DC, the alternating current output assembly, the switch control circuit and the voltage conversion circuit are all complete vehicle devices that can be removed from the vehicle.

4. The vehicle-mounted power supply according to claim 2, characterized in that: The AC / DC conversion device includes a high-voltage DC / DC, a high-voltage AC / DC and an AC output assembly connected in sequence; The voltage conversion device of the vehicle includes a high voltage DC / low voltage DC and a low voltage output assembly connected to each other; The high-voltage DC / DC, the high-voltage AC / DC, the alternating current output assembly, the high-voltage DC / low-voltage DC and the low-voltage output assembly are all complete vehicle devices that can be removed from the vehicle.

5. The vehicle-mounted power supply according to claim 1, characterized in that: At least a portion of one of the AC / DC conversion device and the voltage conversion device is an off-vehicle device.

6. The vehicle-mounted power supply according to claim 5, characterized in that: The AC / DC conversion device of the vehicle comprises: a high voltage DC / low voltage DC, a high voltage DC / DC, a high voltage AC / DC and an AC output assembly connected in sequence; The voltage conversion device comprises a first voltage conversion circuit and at least one low voltage output assembly connected to each other, the low voltage output assembly comprises a switch control circuit and a second voltage conversion circuit connected to each other, a first end of the first voltage conversion circuit is connected to the high voltage DC / low voltage DC, a second end of the first voltage conversion circuit is connected to a first end of the switch control circuit, a second end of the switch control circuit is connected to a first end of the second voltage conversion circuit, and a second end of the voltage conversion circuit is connected to the second external vehicle load; The high-voltage DC / low-voltage DC, the high-voltage DC / DC, the high-voltage AC / DC and the alternating current output assembly are all complete vehicle devices that can be removed from the vehicle, and the first voltage conversion circuit and at least one of the low-voltage output assemblies are off-vehicle devices.

7. The vehicle-mounted power supply according to claim 5, characterized in that: The AC / DC conversion device of the vehicle comprises: a high voltage DC / low voltage DC, a high voltage DC / DC, a high voltage AC / DC and an AC output assembly connected in sequence; The voltage conversion device includes a low voltage output assembly, the low voltage output assembly includes a switch control circuit and a voltage conversion circuit, a first end of the switch control circuit is connected to the first battery, a second end of the switch control circuit is connected to a first end of the voltage conversion circuit, and a second end of the voltage conversion circuit is connected to the second external load; The high-voltage DC / low-voltage DC, the high-voltage DC / DC, the high-voltage AC / DC and the alternating current output assembly are all complete vehicle devices that can be removed from the vehicle, and the switch control circuit and the voltage conversion circuit are external devices.

8. The vehicle-mounted power supply according to claim 5, characterized in that: The AC / DC conversion device includes a high-voltage DC / DC, a high-voltage AC / DC and an AC output assembly connected in sequence; The voltage conversion device includes a low-voltage output assembly of a vehicle, the low-voltage output assembly of the vehicle includes a switch control circuit and a voltage conversion circuit, a first end of the switch control circuit is connected to the first battery, a second end of the switch control circuit is connected to a first end of the voltage conversion circuit, and a second end of the voltage conversion circuit is connected to the second external load; The high-voltage DC / low-voltage DC, the high-voltage DC / DC, the high-voltage AC / DC and the alternating current output assembly are all off-vehicle devices, and the switch control circuit and the voltage conversion circuit are all complete vehicle devices that can be removed from the vehicle.

9. The vehicle-mounted power supply according to claim 5, characterized in that: The AC / DC conversion device includes a high-voltage DC / DC, a high-voltage AC / DC and an AC output assembly connected in sequence; The voltage conversion device includes a high voltage DC / low voltage DC and a low voltage output assembly connected to each other; The high-voltage DC / DC, the high-voltage AC / DC and the alternating current output assembly are all complete vehicle devices that can be removed from the vehicle, and the high-voltage DC / low-voltage DC and the low-voltage output assembly are off-vehicle devices.

10. The vehicle-mounted power supply according to claim 5, characterized in that: The AC / DC conversion device is an AC / DC conversion device of a vehicle, and the AC / DC conversion device of the vehicle comprises a high-voltage DC / DC, a high-voltage AC / DC and an AC output assembly connected in sequence; The voltage conversion device includes a high voltage DC / low voltage DC and a low voltage output assembly connected to each other; The high-voltage DC / DC, the high-voltage AC / DC and the alternating current output assembly are all complete vehicle devices that can be removed from the vehicle, the high-voltage DC / low-voltage DC is a complete vehicle device that can be removed from the vehicle, and the low-voltage output assembly is an external device.

11. The vehicle-mounted power supply according to claim 5, characterized in that: The AC / DC conversion device is an AC / DC conversion device of a vehicle, and the AC / DC conversion device of the vehicle comprises a high-voltage DC / DC, a high-voltage AC / DC and an AC output assembly connected in sequence; The voltage conversion device includes a high-voltage DC / low-voltage DC and a low-voltage output assembly, wherein a first end of the high-voltage DC / low-voltage DC is connected to the high-voltage DC / DC, and a second end of the high-voltage DC / low-voltage DC is connected to the low-voltage output assembly; The high-voltage DC / DC, the high-voltage AC / DC and the alternating current output assembly are all complete vehicle devices that can be removed from the vehicle, and the high-voltage DC / low-voltage DC and the low-voltage output assembly are all external vehicle devices.

12. The vehicle-mounted power supply according to any one of claims 3, 6 and 7, characterized in that: The high voltage DC / low voltage DC includes a first secondary side conversion circuit, a first isolation conversion circuit, and a first primary side conversion circuit; The high-voltage DC / DC includes a second secondary conversion circuit, a second isolation conversion circuit, and a second primary conversion circuit; The high voltage AC / DC includes a power factor correction circuit; The AC power output assembly includes a switch control circuit; The first end of the first secondary conversion circuit is connected to the first battery, the second end of the first secondary conversion circuit is connected to the first end of the first isolation conversion circuit, the second end of the first isolation conversion circuit is connected to the first end of the first primary conversion circuit, the second end of the first primary conversion circuit is connected to the first end of the second secondary conversion circuit, the second end of the second secondary conversion circuit is connected to the first end of the second isolation conversion circuit, the second end of the second isolation conversion circuit is connected to the first end of the second primary conversion circuit, the second end of the second primary conversion circuit is connected to the first end of the power factor correction circuit, the second end of the power factor correction circuit is connected to the first end of the switch control circuit, and the second end of the switch control circuit is connected to the first external vehicle load.

13. The vehicle-mounted power supply according to claim 8, characterized in that: The high-voltage DC / DC includes a first secondary-side conversion circuit, a first isolation conversion circuit, and a first primary-side conversion circuit; The high voltage AC / DC includes a power factor correction circuit; The AC power output assembly includes a switch control circuit; The first end of the first secondary conversion circuit is connected to the first battery, the second end of the first secondary conversion circuit is connected to the first end of the first isolation conversion circuit, the second end of the first isolation conversion circuit is connected to the first end of the first primary conversion circuit, the second end of the first primary conversion circuit is connected to the first end of the power factor correction circuit, the second end of the power factor correction circuit is connected to the first end of the switch control circuit, and the second end of the switch control circuit is connected to the first external vehicle load.

14. The vehicle-mounted power supply according to any one of claims 4, 9 and 10, characterized in that: The high-voltage DC / DC includes a first secondary-side conversion circuit, a first isolation conversion circuit, and a first primary-side conversion circuit; The high voltage AC / DC includes a power factor correction circuit; The AC power output assembly includes a switch control circuit; A first end of the first secondary conversion circuit is connected to the first battery, a second end of the first secondary conversion circuit is connected to a first end of the first isolation conversion circuit, a second end of the first isolation conversion circuit is connected to a first end of the first primary conversion circuit, a second end of the first primary conversion circuit is connected to a first end of the power factor correction circuit, a second end of the power factor correction circuit is connected to a first end of the switch control circuit, and a second end of the switch control circuit is connected to the first external vehicle load; The high voltage DC / low voltage DC includes a second secondary side conversion circuit, a second isolation conversion circuit, and a second primary side conversion circuit; The low voltage output assembly includes a voltage conversion circuit; A first end of the second secondary conversion circuit is connected to the first battery, a second end of the second secondary conversion circuit is connected to a first end of the second isolation conversion circuit, a second end of the second isolation conversion circuit is connected to a first end of the second primary conversion circuit, a second end of the second primary conversion circuit is connected to a first end of the voltage conversion circuit, and a second end of the voltage conversion circuit is connected to the second external load; The low-voltage output assembly includes a switch control circuit and a voltage conversion circuit. The first end of the switch control circuit is connected to the high-voltage DC / low-voltage DC, the second end of the switch control circuit is connected to the first end of the voltage conversion circuit, and the second end of the voltage conversion circuit is connected to the second external vehicle load.

15. The vehicle-mounted power supply according to claim 11, characterized in that: The high-voltage DC / DC includes a first secondary-side conversion circuit, a first isolation conversion circuit, and a first primary-side conversion circuit; The high voltage AC / DC includes a power factor correction circuit; The AC power output assembly includes a switch control circuit; A first end of the first secondary conversion circuit is connected to the first battery, a second end of the first secondary conversion circuit is connected to a first end of the first isolation conversion circuit, a second end of the first isolation conversion circuit is connected to a first end of the first primary conversion circuit, a second end of the first primary conversion circuit is connected to a first end of the power factor correction circuit, a second end of the power factor correction circuit is connected to a first end of the switch control circuit, and a second end of the switch control circuit is connected to the first external vehicle load; The high voltage DC / low voltage DC includes a second secondary side conversion circuit, a second isolation conversion circuit, and a second primary side conversion circuit; The low voltage output assembly includes a voltage conversion circuit; The first end of the second secondary conversion circuit is connected to the high-voltage DC / DC, the second end of the second secondary conversion circuit is connected to the first end of the second isolation conversion circuit, the second end of the second isolation conversion circuit is connected to the first end of the second primary conversion circuit, the second end of the second primary conversion circuit is connected to the first end of the voltage conversion circuit, and the second end of the voltage conversion circuit is connected to the second external vehicle load.

16. A battery system for a vehicle, characterized in that: include: The first battery in the vehicle power supply according to any one of claims 1 to 15; A voltage conversion device; a first end of the voltage conversion device is connected to the first battery, and a second end of the voltage conversion device is suitable for connecting to a non-power load of the vehicle, and the voltage conversion device is used to convert the voltage of the first battery and output direct current to the non-power load of the vehicle.

17. A battery system for a vehicle, characterized in that: The battery system comprises: The first battery in the vehicle power supply according to any one of claims 1 to 15; An AC / DC conversion device; a first end of the AC / DC conversion device is connected to the first battery, and a second end of the AC / DC conversion device is suitable for connecting an AC power load of the vehicle; the AC / DC conversion device is used to convert the DC power output by the first battery into AC power for the AC power load.

18. A vehicle, characterized in that: include: A battery system for a vehicle as claimed in any one of claims 16 or 17.

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