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

Abstract

A vehicle. The vehicle is provided with a battery system (200), and the battery system (200) is provided with a vehicle-mounted power supply (100). At least some of the devices of the vehicle-mounted power supply (100) are detachably connected to the vehicle. The vehicle-mounted power supply (100) comprises a first battery (101) and an electric energy conversion device (102); the first battery (101) is a non-power battery of the vehicle, and is used for supplying power for an external load of the vehicle when the first battery is in a detached state; a first end of the electric energy conversion device (102) is connected to the first battery (101), and a second end of the electric energy conversion device (102) is adapted to be connected to the external load of the vehicle; in the vehicle-mounted power supply (100), the electric energy conversion device (102) is used for converting the electric energy of the first battery (101) and then supplying power for the external load of the vehicle.

Description

On-board power supply, vehicle battery system and vehicle

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese Patent Application No. 202311440192.3, filed on October 31, 2023, entitled “On-board Power Supply, Battery System for Vehicle, and Vehicle,” the entire contents of which are hereby incorporated herein for all purposes; and

[0003] This application claims priority to Chinese patent application No. 202311441466.0, filed on October 31, 2023, entitled “On-board power supply, vehicle battery system and vehicle,” the entire contents of which are incorporated herein for all purposes. Technical Field

[0004] The present disclosure relates to electric vehicle technology, and more particularly, to an on-board power supply, a battery system for a vehicle, and the vehicle. Background Art

[0005] When the battery system of a related vehicle is not supplying power to the vehicle's power loads and / or non-power loads, it is in an idle state and is not fully utilized. When the vehicle owner needs to use power outside the vehicle, the vehicle owner needs to find or equip another power source.

[0006] Public content

[0007] One purpose of the present disclosure is to provide a new technical solution for vehicle-mounted power supply.

[0008] According to a first aspect of the present disclosure, there is provided an on-vehicle power supply, at least part of which is detachably connected to the vehicle, comprising:

[0009] a first battery, the first battery being a non-power battery of the vehicle, and the first battery being used to supply power to an external load of the vehicle when in a disassembled state; and

[0010] An electric energy conversion device, wherein a first end of the electric energy conversion device is connected to the first battery, and a second end of the electric energy conversion device is suitable for connecting to the external load. In the on-board power supply, the electric energy conversion device is used to convert the electric energy of the first battery and then supply power to the external load.

[0011] Optionally, the external load includes a first external load, the electric energy conversion device includes a first voltage conversion device, the first end of the first voltage conversion device is connected to the first battery, and the second end of the first voltage conversion device is suitable for connecting to the first external load. In the vehicle-mounted power supply, the first voltage conversion device is used to convert the voltage of the first battery and output direct current to the first external load.

[0012] Optionally, the first voltage conversion device includes a low-voltage output assembly of the vehicle, a first end of the low-voltage output assembly of the vehicle is connected to the first battery, and a second end of the low-voltage output assembly of the vehicle is suitable for detachable connection to a non-power load of the vehicle.

[0013] Optionally, the first voltage conversion device includes an off-vehicle voltage conversion device, a first end of the off-vehicle voltage conversion device is connected to the first battery, and a second end of the off-vehicle voltage conversion device is suitable for connecting to the first off-vehicle load.

[0014] Optionally, the first voltage conversion device includes:

[0015] a switch control circuit, a first terminal of the switch control circuit being connected to the first battery; and

[0016] A voltage conversion circuit, wherein a first end of the voltage conversion circuit is connected to a second end of the switch control circuit, and a second end of the voltage conversion circuit is suitable for being connected to the first external vehicle load.

[0017] Optionally, the first battery is at least one of a storage battery, an iron battery and a supercapacitor.

[0018] Optionally, the vehicle-mounted power supply further includes a storage compartment, in which the first battery and the first voltage conversion device are accommodated.

[0019] Optionally, the storage compartment is provided with a locking mechanism, which is used to open when the on-board power supply is electrically disconnected from the vehicle, so as to dismantle the on-board power supply.

[0020] Optionally, the storage bin is provided with a low-voltage output interface, and the second end of the first voltage conversion device is connected to the low-voltage output interface to output direct current.

[0021] Optionally, the storage compartment is further provided with an electrical connection interface, the first battery is connected to the electrical connection interface, and the first battery is suitable for being electrically connected to the vehicle through the electrical connection interface.

[0022] Optionally, the external load includes a second external load, the electric energy conversion device includes an AC-DC conversion device, the first end of the AC-DC conversion device is connected to the first battery, and the second end of the AC-DC conversion device is suitable for connecting to the second external load. In the on-board power supply, the AC-DC conversion device is used to convert the DC power of the first battery into AC power for the second external load.

[0023] 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: high-voltage DC / low-voltage DC, high-voltage DC / DC, high-voltage AC / DC and AC output assembly connected in sequence, and the high-voltage DC / low-voltage DC, 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.

[0024] Optionally, the AC / DC conversion device 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;

[0025] The high-voltage DC / low-voltage DC, the high-voltage DC / DC, and the high-voltage AC / DC are all complete vehicle devices that can be removed from the vehicle, and the AC output assembly is an off-vehicle device.

[0026] 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;

[0027] The high-voltage DC / DC includes a second secondary-side conversion circuit, a second isolation conversion circuit, and a second primary-side conversion circuit;

[0028] The high voltage AC / DC includes a power factor correction circuit;

[0029] The AC output assembly includes a switch control circuit;

[0030] 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 suitable for connection to the second external vehicle load.

[0031] Optionally, the AC / DC conversion device includes: a high voltage DC / low voltage DC, a high voltage AC / DC and an AC output assembly connected in sequence;

[0032] The high-voltage DC / low-voltage DC, the high-voltage AC / DC and the alternating current output assembly are all complete vehicle devices that can be removed from the vehicle.

[0033] 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 connected in sequence;

[0034] The high voltage AC / DC includes a power factor correction circuit;

[0035] The AC output assembly includes a switch control circuit;

[0036] 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 suitable for being connected to the second external load.

[0037] Optionally, the AC / DC conversion device includes: high voltage DC / low voltage DC and high voltage DC / AC connected to each other;

[0038] The high-voltage DC / low-voltage DC is a vehicle-mounted device that can be removed from the vehicle, and the high-voltage DC / AC is an off-vehicle device;

[0039] A first end of the high-voltage DC / low-voltage DC is connected to the first battery, a second end of the high-voltage DC / low-voltage DC is connected to a first end of the high-voltage DC / AC, and a second end of the high-voltage DC / AC is connected to the second external load.

[0040] Optionally, the AC / DC conversion device includes: interconnected high-voltage DC / low-voltage DC, high-voltage DC / AC, and alternating current output assemblies;

[0041] The high-voltage DC / low-voltage DC is a complete vehicle device that can be removed from the vehicle, and the high-voltage DC / AC and the AC output assembly are both off-vehicle devices;

[0042] 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 / AC, the second end of the high-voltage DC / AC is connected to the first end of the AC power output assembly, and the second end of the AC power output assembly is connected to the second external load.

[0043] Optionally, the AC / DC conversion device is an external DC / AC conversion device, and the external DC / AC conversion device includes a high-voltage DC / AC or a low-voltage DC / AC;

[0044] A first end of the high-voltage DC / AC is connected to the first battery, and a second end of the high-voltage DC / AC is connected to the second external load;

[0045] A first end of the low-voltage DC / AC is connected to the first battery, and a second end of the low-voltage DC / AC is connected to the second external load.

[0046] Optionally, the first battery is at least one of a storage battery, an iron battery and a supercapacitor.

[0047] Optionally, the vehicle-mounted power supply further includes a storage compartment, in which the first battery and the AC-DC conversion device are accommodated.

[0048] Optionally, the storage compartment is provided with a locking mechanism, which is used to open when the on-board power supply is electrically disconnected from the vehicle, so as to dismantle the on-board power supply.

[0049] Optionally, the storage bin is provided with an AC power output interface, and the second end of the AC-DC conversion device is connected to the AC power output interface to output AC power.

[0050] Optionally, the storage compartment is further provided with an electrical connection interface, the first battery is connected to the electrical connection interface, and the first battery is suitable for being electrically connected to the vehicle through the electrical connection interface.

[0051] According to a second aspect of the present disclosure, there is provided a battery system for a vehicle, comprising:

[0052] Power battery assembly; and;

[0053] Any of the above-mentioned vehicle-mounted power supplies.

[0054] Optionally, the battery system further includes: a second voltage conversion device, a first end of the second voltage conversion device being connected to the power battery assembly and configured to convert the voltage output by the power battery assembly; and

[0055] The on-board power supply as described in any one of the first aspects is connected to the second end of the second voltage conversion device.

[0056] Optionally, the second voltage conversion device includes:

[0057] High-voltage DC / low-voltage DC, 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;

[0058] The first end of the first primary conversion circuit is connected to the power battery assembly, the second end of the first primary 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 secondary conversion circuit, and the second end of the first secondary conversion circuit is connected to the vehicle power supply.

[0059] Optionally, the battery system further includes:

[0060] an AC / DC converter device, wherein a first end of the AC / DC converter device is connected to the power battery assembly, and a second end of the AC / DC converter device is connected to an AC power load;

[0061] The AC / DC conversion device includes: a high-voltage DC / DC, a high-voltage AC / DC and an AC output assembly connected in sequence.

[0062] Optionally, the high-voltage DC / DC includes a second secondary-side conversion circuit, a second isolation conversion circuit, and a second primary-side conversion circuit;

[0063] The high voltage AC / DC includes a power factor correction circuit;

[0064] The AC output assembly includes a switch control circuit;

[0065] The first end of the second secondary conversion circuit is connected to the power battery assembly, 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 AC power load.

[0066] Optionally, the battery system further includes:

[0067] A second battery, wherein the first end of the second battery is connected to the second voltage conversion device, the second end of the second battery is suitable for connecting to a non-power load of the vehicle, and the second battery is used to power the non-power load of the vehicle when the on-board power supply is removed.

[0068] Optionally, the battery system further includes:

[0069] An auxiliary DC source, wherein a first end of the auxiliary DC source is connected to the power battery assembly through a switch control circuit, and a second end of the auxiliary DC source is connected to a non-power load of the vehicle. When the on-board power supply is removed, the auxiliary DC source is used to power the non-power load of the vehicle.

[0070] Optionally, the auxiliary source DC includes: a third primary side conversion circuit, a third isolation conversion circuit, and a third secondary side conversion circuit;

[0071] The first end of the third primary conversion circuit is connected to the power battery assembly, the second end of the third primary conversion circuit is connected to the first end of the third isolation conversion circuit, the second end of the third isolation conversion circuit is connected to the first end of the third secondary conversion circuit, and the second end of the third secondary conversion circuit is connected to the non-power load of the vehicle.

[0072] Optionally, the power battery assembly is connected to the first battery via high-voltage DC / low-voltage DC.

[0073] Optionally, the battery system further includes:

[0074] A second battery, wherein a first end of the second battery is connected to the AC / DC conversion device, a second end of the second battery is suitable for connecting to a non-power load of the vehicle, and the second battery is used to power the non-power load of the vehicle when the on-board power supply is removed.

[0075] Optionally, the battery system further includes:

[0076] An auxiliary DC source, wherein a first end of the auxiliary DC source is connected to the power battery assembly through a switch control circuit, and a second end of the auxiliary DC source is connected to a non-power load of the vehicle. When the on-board power supply is removed, the auxiliary DC source is used to power the non-power load of the vehicle.

[0077] Optionally, the auxiliary source DC includes: a third primary side conversion circuit, a third isolation conversion circuit, and a third secondary side conversion circuit;

[0078] The first end of the third primary conversion circuit is connected to the power battery assembly, the second end of the third primary conversion circuit is connected to the first end of the third isolation conversion circuit, the second end of the third isolation conversion circuit is connected to the first end of the third secondary conversion circuit, and the second end of the third secondary conversion circuit is connected to the non-power load of the vehicle.

[0079] According to a third aspect of the present disclosure, a vehicle is provided, comprising: a battery system as described in any one of the second aspects.

[0080] The vehicle-mounted power supply provided by the present disclosure is that the non-power battery in the vehicle's battery system can be removed from the vehicle and form a mobile power supply with the power conversion device. The power conversion device can convert the electrical energy of the non-power battery to power a second external load, so that the vehicle's battery system can be fully utilized when it is idle, while meeting the owner's external DC power demand, thereby improving the owner's car-using experience.

[0081] The vehicle-mounted power supply provided by the present disclosure is that the non-power battery in the vehicle's battery system can be removed from the vehicle and constitutes a mobile power supply with a voltage conversion device. The voltage conversion device can convert the voltage of the non-power battery and output direct current to power a first external load, so that the vehicle's battery system can be fully utilized when in an idle state, while meeting the owner's external direct current power demand, thereby improving the owner's vehicle-using experience.

[0082] The vehicle-mounted power supply provided by the present disclosure is that the non-power battery in the vehicle's battery system can be removed from the vehicle and constitutes a mobile power supply together with the AC power conversion device. The AC / DC conversion device can convert the DC power of the non-power battery into AC power for a second external load, so that the vehicle's battery system can be fully utilized when in an idle state, while meeting the owner's external AC power demand, thereby improving the owner's vehicle-using experience.

[0083] 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

[0084] 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.

[0085] FIG1 shows a structural block diagram of a vehicle-mounted power supply according to an embodiment of the present disclosure.

[0086] FIG2 shows a structural block diagram of a vehicle-mounted power supply according to an embodiment of the present disclosure.

[0087] FIG3 shows a schematic diagram of the battery system after the non-power battery is removed from the battery system of the vehicle.

[0088] FIG4 shows a structural block diagram of a vehicle-mounted power supply according to an embodiment of the present disclosure.

[0089] FIG5 is a schematic diagram showing a battery system after the non-power battery and the low-voltage output assembly are removed from the battery system of the vehicle.

[0090] FIG6 shows a structural block diagram of a vehicle-mounted power supply according to an embodiment of the present disclosure.

[0091] FIG7 shows a structural block diagram of a battery system for a vehicle according to an embodiment of the present disclosure.

[0092] FIG8 shows a schematic circuit diagram of a high voltage DC / low voltage DC according to an embodiment of the present disclosure.

[0093] FIG9 shows a structural block diagram of a battery system for a vehicle according to an embodiment of the present disclosure.

[0094] FIG10 shows a circuit diagram of a high-voltage DC / DC according to an embodiment of the present disclosure.

[0095] FIG11 shows a structural block diagram of a battery system for a vehicle according to an embodiment of the present disclosure.

[0096] FIG12 shows a structural block diagram of a battery system for a vehicle according to an embodiment of the present disclosure.

[0097] FIG13 shows a structural block diagram of a battery system for a vehicle according to an embodiment of the present disclosure.

[0098] FIG14 shows a structural block diagram of a storage bin according to an embodiment of the present disclosure.

[0099] FIG15 shows a structural block diagram of an auxiliary source DC according to an embodiment of the present disclosure.

[0100] FIG16 shows a structural block diagram of a vehicle-mounted power supply according to an embodiment of the present disclosure.

[0101] FIG17 shows a structural block diagram of a vehicle-mounted power supply according to an embodiment of the present disclosure.

[0102] FIG18 is a schematic diagram showing a battery system after the non-power battery and the AC / DC converter are removed from the battery system of the vehicle.

[0103] FIG19 shows a circuit diagram of high-voltage DC / low-voltage DC, high-voltage DC / DC, and high-voltage AC / DC according to an embodiment of the present disclosure.

[0104] FIG20 shows a structural block diagram of a vehicle-mounted power supply according to an embodiment of the present disclosure.

[0105] FIG21 is a schematic diagram showing a battery system in which a non-power battery and a partial structure of an AC / DC converter are removed from the battery system of a vehicle.

[0106] FIG22 shows a structural block diagram of a vehicle-mounted power supply according to an embodiment of the present disclosure.

[0107] FIG23 is a schematic diagram showing a battery system in which a non-power battery and a partial structure of an AC / DC converter are removed from the battery system of a vehicle.

[0108] FIG24 shows a structural block diagram of a vehicle-mounted power supply according to an embodiment of the present disclosure.

[0109] FIG25 shows a schematic diagram of the battery system after the non-power battery and the high-voltage DC / low-voltage DC are removed from the battery system of the vehicle.

[0110] FIG26 shows a structural block diagram of a vehicle-mounted power supply according to an embodiment of the present disclosure.

[0111] FIG27 shows a structural block diagram of a battery system for a vehicle according to an embodiment of the present disclosure.

[0112] FIG28 shows a structural block diagram of a battery system for a vehicle according to an embodiment of the present disclosure.

[0113] FIG29 shows a structural block diagram of a battery system for a vehicle according to an embodiment of the present disclosure.

[0114] FIG30 shows a structural block diagram of a battery system for a vehicle according to an embodiment of the present disclosure.

[0115] FIG31 shows a structural block diagram of a battery system for a vehicle according to an embodiment of the present disclosure.

[0116] Reference numerals:

[0117] 100-Car Power Supply

[0118] 101-First Battery

[0119] 102-Electric energy conversion device

[0120] 103-First voltage conversion device

[0121] 104-Low voltage output assembly

[0122] 105-External voltage conversion device

[0123] 106-Switch control circuit

[0124] 107-Voltage Conversion Circuit

[0125] 108-Storage Warehouse

[0126] 109-Locking mechanism

[0127] 110-Low voltage output interface

[0128] 111-Electrical connection interface

[0129] 112-AC / DC conversion device

[0130] 113-High Voltage DC / Low Voltage DC

[0131] 114-High Voltage DC / DC

[0132] 115-High Voltage AC / DC

[0133] 116-AC output assembly

[0134] 117-First secondary side conversion circuit

[0135] 118-First isolation conversion circuit

[0136] 119-First primary side conversion circuit

[0137] 120-Second secondary side conversion circuit

[0138] 121-Second isolation conversion circuit

[0139] 122-Second primary side conversion circuit

[0140] 123-Power Factor Correction Circuit

[0141] 200-battery system

[0142] 201-Power battery assembly

[0143] 202-Auxiliary Source DC

[0144] 203-Third primary side conversion circuit

[0145] 204-Third isolation conversion circuit

[0146] 205-Third secondary side conversion circuit

[0147] 206-Second voltage conversion device

[0148] 207-Second Battery DETAILED DESCRIPTION

[0149] Various exemplary embodiments of the present specification will now be described in detail with reference to the accompanying drawings.

[0150] 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.

[0151] 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.

[0152] <On-board Power Supply Example>

[0153] Example 1

[0154] With reference to FIG1 , an embodiment of the present disclosure provides an on-board power supply 100. At least part of the on-board power supply 100 is detachably connected to the vehicle. As shown in FIG1 , the on-board power supply 100 of this embodiment includes a first battery 101 and an electric energy conversion device 102. The first battery 101 is used to supply power to an external load when in a disassembled state; the first end of the electric energy conversion device 102 is connected to the first battery 101, and the second end of the electric energy conversion device 102 is suitable for connecting to an external load. In the on-board power supply 100, the electric energy conversion device 102 is used to convert the electric energy of the first battery 101 and supply power to the external load.

[0155] Example 2

[0156] First battery 101 is the vehicle's non-power battery. When removed, first battery 101 is used to power external loads. Figure 3 shows a schematic diagram of battery system 200 after the non-power battery has been removed from the vehicle. The dashed box 1 indicates the location of the non-power battery within the vehicle's battery system 200.

[0157] Referring to Figure 2 , the external load includes a first external load, and the power conversion device 102 includes a first voltage conversion device 103. A first end of the first voltage conversion device 103 is connected to the first battery 101, and a second end of the first voltage conversion device 103 is suitable for connecting to the first external load. In the vehicle power supply 100, the first voltage conversion device 103 is used to convert the voltage of the first battery 101 and output direct current to the first external load.

[0158] In one embodiment, the first external load is a DC power load.

[0159] In the vehicle-mounted power supply 100 provided in this embodiment, the non-power battery in the vehicle's battery system 200 can be removed from the vehicle and constitutes a mobile power supply together with the voltage conversion device. The voltage conversion device converts the voltage of the non-power battery and outputs direct current to power the first external load, so that the vehicle's battery system 200 can be fully utilized when in an idle state, while meeting the owner's external DC power demand, thereby improving the owner's vehicle-using experience.

[0160] In one embodiment, the first battery 101 is at least one of a secondary battery, an iron battery, and a supercapacitor.

[0161] In one embodiment, the first voltage conversion device 103 includes a switch control circuit 106 and a voltage conversion circuit 107. A first terminal of the switch control circuit 106 is connected to the first battery 101. A first terminal of the voltage conversion circuit 107 is connected to a second terminal of the switch control circuit 106. A second terminal of the voltage conversion circuit 107 is adapted to be connected to a first external load.

[0162] The first voltage conversion device 103 can step down the voltage of the first battery 101 and output direct current to the first external load, or can step up the voltage of the first battery 101 and output direct current to the first external load.

[0163] For example, the voltage of the first battery 101 is 12V, and the first voltage conversion device 103 is configured to convert the 12V voltage of the non-power battery into 5V to supply power to a load with a power voltage of 5V.

[0164] For another example, the voltage of the first battery 101 is 12V, and the first voltage conversion device 103 is configured to convert the 12V voltage of the non-power battery into 24V to supply power to a load that consumes 24V.

[0165] The first voltage conversion device 103 includes a control switch and a voltage conversion circuit 107. Thus, the first voltage conversion device 103 is configured to convert the voltage of the non-power battery into a corresponding power voltage.

[0166] The first voltage conversion device 103 includes multiple switch control circuits 106 and multiple voltage conversion circuits 107. Each switch control circuit 106 and the corresponding voltage conversion circuit 107 form a branch. The first end of each branch is connected to the first battery 101, and the second end of each branch is connected to the corresponding first external load. In this way, the first voltage conversion device 103 is configured to convert the voltage of the non-power battery into different power voltages, thereby supplying power to loads with different power voltages.

[0167] In one embodiment, referring to FIG14 , the vehicle-mounted power supply 100 further includes a storage compartment 108 . The first battery 101 and the first voltage conversion device 103 are accommodated in the storage compartment 108 .

[0168] 14 , the storage compartment 108 is provided with a locking mechanism 109. The locking mechanism 109 is used to be opened when the on-board power supply 100 is electrically disconnected from the vehicle, so as to remove the on-board power supply 100.

[0169] Referring to Figure 14 , the storage compartment 108 is provided with a low-voltage output interface 110. The second end of the first voltage conversion device 103 is connected to the low-voltage output interface 110 to output direct current. The storage compartment 108 is also provided with an electrical connection interface 111, to which the first battery 101 is connected. The first battery 101 is adapted to be electrically connected to the vehicle via the electrical connection interface 111.

[0170] Example 3

[0171] In one embodiment, the first battery 101 is a non-power battery of the vehicle. The first voltage conversion device 103 includes a low-voltage output assembly 104 of the vehicle.

[0172] 4 , the vehicle-mounted power supply 100 of this embodiment includes a non-power battery of the vehicle and a low-voltage output assembly 104 of the vehicle.

[0173] In the vehicle power supply 100 , a first end of the vehicle's low-voltage output assembly 104 is connected to the vehicle's non-power battery, and a second end of the vehicle's low-voltage output assembly 104 is suitable for connecting to a first external load.

[0174] In a vehicle, a first end of the vehicle's low-voltage output assembly 104 is connected to a non-power battery of the vehicle, and a second end of the vehicle's low-voltage output assembly 104 is suitable for detachably connecting to a non-power load of the vehicle.

[0175] Figure 5 shows a schematic diagram of the battery system 200 after the non-power battery and low-voltage output assembly 104 are removed from the vehicle's battery system 200. The dotted box 1 indicates the location of the non-power battery in the vehicle's battery system 200. The dotted box 2 indicates the location of the low-voltage output assembly 104 in the vehicle's battery system 200.

[0176] In this embodiment, the vehicle's low-voltage output assembly 104 includes a switch control circuit 106 and a voltage conversion circuit 107. A first terminal of the switch control circuit 106 is connected to the vehicle's non-power battery. A first terminal of the voltage conversion circuit 107 is connected to a second terminal of the switch control circuit 106. In the vehicle power supply 100, the second terminal of the voltage conversion circuit 107 is adapted to be connected to a first external load. In the vehicle, the second terminal of the voltage conversion circuit 107 is adapted to be connected to the vehicle's non-power load.

[0177] The vehicle's low-voltage output assembly 104 includes a control switch and a voltage conversion circuit 107 .

[0178] The vehicle's low-voltage output assembly 104 includes multiple switch control circuits 106 and multiple voltage conversion circuits 107. Each switch control circuit 106 and a corresponding voltage conversion circuit 107 form a branch circuit. The first end of each branch circuit is connected to the vehicle's non-power battery, and the second end of each branch circuit is connected to a corresponding first external load. In this way, the vehicle's low-voltage output assembly 104 is configured to convert the voltage of the non-power battery into different power voltages, thereby supplying power to loads with different power voltages.

[0179] The vehicle power supply 100 further includes a storage compartment 108 . The vehicle's non-power battery and the vehicle's low-voltage output assembly 104 are accommodated in the storage compartment 108 .

[0180] 14 , the storage compartment 108 is provided with a locking mechanism 109. The locking mechanism 109 is used to be opened when the on-board power supply 100 is electrically disconnected from the vehicle, so as to remove the on-board power supply 100.

[0181] 14 , the storage compartment 108 is provided with a low-voltage output interface 110. A second end of the vehicle's low-voltage output assembly 104 is connected to the low-voltage output interface 110 to output direct current.

[0182] 14 , the storage compartment 108 is further provided with an electrical connection interface 111 . The non-power battery of the vehicle is connected to the electrical connection interface 111 . The non-power battery of the vehicle is adapted to be electrically connected to the vehicle via the electrical connection interface 111 .

[0183] The vehicle-mounted power supply 100 provided in this embodiment, the non-power battery and the voltage conversion device in the vehicle's battery system 200 can be removed from the vehicle to form a mobile power supply. The voltage conversion device can convert the voltage of the non-power battery and output direct current to power the first external load, so that the vehicle's battery system 200 can be fully utilized when in an idle state, while meeting the owner's external DC power demand, thereby improving the owner's car-using experience.

[0184] Example 4

[0185] In one embodiment, the first battery 101 is a non-power battery of the vehicle, and the first voltage conversion device 103 includes an off-vehicle voltage conversion device 105 .

[0186] 6 , the vehicle-mounted power supply 100 of this embodiment includes a non-power battery of the vehicle and an off-vehicle voltage conversion device 105 .

[0187] In the vehicle power supply 100 , a first end of the external voltage conversion device 105 is connected to the non-power battery of the vehicle, and a second end of the external voltage conversion device 105 is suitable for connecting to a first external load.

[0188] In this embodiment, the off-vehicle voltage conversion device 105 includes a switch control circuit 106 and a voltage conversion circuit 107. A first terminal of the switch control circuit 106 is connected to the vehicle's non-power battery. A first terminal of the voltage conversion circuit 107 is connected to a second terminal of the switch control circuit 106. In the on-vehicle power supply 100, a second terminal of the voltage conversion circuit 107 is adapted to be connected to a first off-vehicle load.

[0189] The off-vehicle voltage conversion device 105 includes a control switch and a voltage conversion circuit 107 .

[0190] The off-vehicle voltage conversion device 105 includes multiple switch control circuits 106 and multiple voltage conversion circuits 107. Each switch control circuit 106 and the corresponding voltage conversion circuit 107 form a branch. The first end of each branch is connected to the vehicle's non-power battery, and the second end of each branch is connected to a corresponding first off-vehicle load. In this way, the off-vehicle voltage conversion device 105 is configured to convert the voltage of the non-power battery into different power voltages, thereby supplying power to loads with different power voltages.

[0191] 14 , the vehicle-mounted power supply 100 further includes a storage compartment 108 . The vehicle's non-power battery is accommodated in the storage compartment 108 .

[0192] 14 , the storage compartment 108 is provided with a locking mechanism 109. The locking mechanism 109 is used to be opened when the non-power battery of the vehicle is electrically disconnected from the vehicle, so as to remove the non-power battery of the vehicle.

[0193] The storage compartment 108 is provided with a first electrical connection interface 111 and a second electrical connection interface 111. The vehicle's non-power battery is connected to the vehicle via the first electrical connection interface 111. The vehicle's non-power battery is connected to the off-vehicle voltage conversion device 105 via the second electrical connection interface 111.

[0194] In the vehicle-mounted power supply 100 provided in this embodiment, the non-power battery in the vehicle's battery system 200 can be removed from the vehicle and form a mobile power supply with the off-vehicle voltage conversion device 105. The off-vehicle voltage conversion device 105 can convert the voltage of the non-power battery and output direct current to power the first off-vehicle load, so that the vehicle's non-power battery can be fully utilized when in an idle state, while meeting the owner's off-vehicle power needs and improving the owner's car-using experience.

[0195] Example 5

[0196] In one embodiment, the vehicle power supply 100 includes: a first battery 101, a first voltage conversion device 103, and an AC / DC conversion device 112. The first battery 101 and the first voltage conversion device 103 can refer to any of the above embodiments and will not be described in detail here.

[0197] A first end of the AC / DC converter 112 is connected to the first battery 101, and a second end of the AC / DC converter 112 is adapted to connect to a first external load. In the vehicle power supply 100, the AC / DC converter 112 is configured to convert the DC power from the first battery 101 into AC power for the first external load.

[0198] In one embodiment, the AC / DC converter 112 is a vehicle AC / DC converter 112. The vehicle AC / DC converter 112 includes: a high-voltage DC / low-voltage DC 113, a high-voltage DC / DC 114, a high-voltage AC / DC 115, and an AC output assembly 116 connected in sequence.

[0199] In the vehicle power supply 100, the first end of the high-voltage DC / low-voltage DC 113 is connected to the non-power battery, the second end of the high-voltage DC / low-voltage DC 113 is connected to the first end of the high-voltage DC / DC 114, the second end of the high-voltage DC / DC 114 is connected to the first end of the high-voltage AC / DC 115, the second end of the high-voltage AC / DC 115 is connected to the first end of the AC output assembly 116, and the second end of the AC output assembly 116 is connected to the first external load.

[0200] The high-voltage DC / low-voltage DC 113 includes a first primary-side conversion circuit 119 , a first isolation conversion circuit 118 , and a first secondary-side conversion circuit 117 .

[0201] The high-voltage DC / DC 114 includes a second primary conversion circuit 122 , a second isolation conversion circuit 121 , and a second secondary conversion circuit 120 . The high-voltage AC / DC 115 includes a power factor correction circuit 123 . The AC output assembly 116 includes a switch control circuit 106 .

[0202] The first end of the first secondary conversion circuit 117 is connected to the non-power battery, the second end of the first secondary conversion circuit 117 is connected to the first end of the first isolation conversion circuit 118, the second end of the first isolation conversion circuit 118 is connected to the first end of the first primary conversion circuit 119, and the second end of the first primary conversion circuit 119 is connected to the first end of the second secondary conversion circuit 120.

[0203] The second end of the second secondary conversion circuit 120 is connected to the first end of the second isolation conversion circuit 121, the second end of the second isolation conversion circuit 121 is connected to the first end of the second primary conversion circuit 122, the second end of the second primary conversion circuit 122 is connected to the first end of the power factor correction circuit 123, the second end of the power factor correction circuit 123 is connected to the first end of the switch control circuit 106, and the switch control circuit 106 is connected to the first external vehicle load.

[0204] The first secondary conversion circuit 117 is configured to receive direct current (DC) from the non-power battery, convert the DC power into alternating current (AC), and transmit the resultant power to the secondary winding of the first isolation conversion circuit 118. The first isolation conversion circuit 118 is configured to receive AC power having a first voltage from the first secondary conversion circuit 117 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 119. The first primary conversion circuit 119 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 120 of the high-voltage DC / DC converter 114.

[0205] The second secondary conversion circuit 120 is configured to receive direct current (DC) power from the first primary conversion circuit 119, convert the DC power into alternating current (AC), and transmit the resultant power to the secondary winding of the second isolated conversion circuit 121. The second isolated conversion circuit 121 is configured to receive AC power having a third voltage from the second secondary conversion circuit 120 via its secondary winding, generate AC power having a fourth voltage on its primary winding, and transmit the resultant power to the second primary conversion circuit 122. The second primary conversion circuit 122 is configured 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 123. The power factor correction circuit 123 is configured to convert the DC power received from the second primary conversion circuit 122 into AC power. The AC power from the power factor correction circuit 123 is transmitted to the first external load via the switch control circuit 106 of the AC power output assembly 116.

[0206] The vehicle-mounted power supply 100 provided in this embodiment, the non-power battery in the vehicle's battery system 200 can be removed from the vehicle, and constitutes a mobile power supply together with the voltage conversion device and the AC conversion device. The voltage conversion device can convert the voltage of the first battery 101 and output DC power to power the first external load, and convert the DC power of the non-power battery into AC power to power the first external load, so that the vehicle's battery system 200 can be fully utilized when in an idle state, while meeting the owner's external DC and AC power needs, thereby improving the owner's car-using experience.

[0207] Example 6

[0208] In one embodiment, the vehicle power supply 100 includes: a first battery 101, a first voltage conversion device 103, and an AC / DC conversion device 112. The first battery 101 and the first voltage conversion device 103 can refer to any of the above embodiments and will not be described in detail here.

[0209] AC / DC converter 112 includes a sequentially connected high-voltage DC / low-voltage DC converter 113, a high-voltage DC / DC converter 114, a high-voltage AC / DC converter 115, and an AC power output assembly 116. High-voltage DC / low-voltage DC converter 113, high-voltage DC / DC converter 114, and high-voltage AC / DC converter 115 are all fully removable components, while AC power output assembly 116 is an external component.

[0210] The specific structures and connection relationships of the high-voltage DC / low-voltage DC 113 , the high-voltage DC / DC 114 , the high-voltage AC / DC 115 and the AC output assembly 116 are the same as those in the previous embodiment and will not be described in detail here.

[0211] Example 7

[0212] In one embodiment, the vehicle power supply 100 includes: a first battery 101, a first voltage conversion device 103, and an AC / DC conversion device 112. The first battery 101 and the first voltage conversion device 103 can refer to any of the above embodiments and will not be described in detail here.

[0213] AC / DC converter 112 includes a high-voltage DC / low-voltage DC 113, a high-voltage AC / DC 115, and an AC output assembly 116, which are connected in sequence. These components are all fully removable from the vehicle.

[0214] In the vehicle power supply 100, the first end of the high-voltage DC / low-voltage DC 113 is connected to the non-power battery, the second end of the high-voltage DC / low-voltage DC 113 is connected to the first end of the high-voltage AC / DC 115, the second end of the high-voltage AC / DC 115 is connected to the first end of the AC output assembly 116, and the second end of the AC output assembly 116 is connected to the first external load.

[0215] The high-voltage DC / low-voltage DC 113 includes a first primary-side conversion circuit 119 , a first isolation conversion circuit 118 , and a first secondary-side conversion circuit 117 .

[0216] The high voltage AC / DC 115 includes a power factor correction circuit 123 . The AC output assembly 116 includes a switch control circuit 106 .

[0217] The first end of the first secondary conversion circuit 117 is connected to the non-power battery, the second end of the first secondary conversion circuit 117 is connected to the first end of the first isolation conversion circuit 118, the second end of the first isolation conversion circuit 118 is connected to the first end of the first primary conversion circuit 119, the second end of the first primary conversion circuit 119 is connected to the first end of the power factor correction circuit 123, the second end of the power factor correction circuit 123 is connected to the first end of the switch control circuit 106, and the switch control circuit 106 is connected to the first external load.

[0218] The first secondary conversion circuit 117 is configured to receive direct current (DC) power from the non-power battery, convert the DC power into alternating current (AC), and transmit the resultant power to the secondary winding of the first isolated conversion circuit 118. The first isolated conversion circuit 118 is configured to receive AC power having a first voltage from the first secondary conversion circuit 117 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 119. The first primary conversion circuit 119 is configured 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 123. The power factor correction circuit 123 is configured to convert the DC power received from the first primary conversion circuit 119 into AC power. The AC power from the power factor correction circuit 123 is transmitted to a first external load via the switch control circuit 106 of the AC power output assembly 116.

[0219] Example 8

[0220] In one embodiment, the vehicle power supply 100 includes: a first battery 101, a first voltage conversion device 103, and an AC / DC conversion device 112. The first battery 101 and the first voltage conversion device 103 can refer to any of the above embodiments and will not be described in detail here.

[0221] The AC / DC converter 112 includes a high-voltage DC / low-voltage DC 113 and a high-voltage DC / AC unit connected to each other. The high-voltage DC / low-voltage DC 113 is a vehicle-mounted unit that can be removed from the vehicle, while the high-voltage DC / AC unit is an external unit.

[0222] In the vehicle power supply 100 , a first terminal of the high-voltage DC / low-voltage DC 113 is connected to the first battery 101 , a second terminal of the high-voltage DC / low-voltage DC 113 is connected to a first terminal of the high-voltage DC / AC, and a second terminal of the high-voltage DC / AC is connected to a first external load.

[0223] The high-voltage DC / low-voltage DC 113 includes a first primary-side conversion circuit 119 , a first isolation conversion circuit 118 , and a first secondary-side conversion circuit 117 .

[0224] The high voltage DC / AC includes a power factor correction circuit 123 .

[0225] The first end of the first secondary conversion circuit 117 is connected to the non-power battery, the second end of the first secondary conversion circuit 117 is connected to the first end of the first isolation conversion circuit 118, the second end of the first isolation conversion circuit 118 is connected to the first end of the first primary conversion circuit 119, the second end of the first primary conversion circuit 119 is connected to the first end of the power factor correction circuit 123, the second end of the power factor correction circuit 123 is connected to the first end of the switch control circuit 106, and the switch control circuit 106 is connected to the first external load.

[0226] The first secondary conversion circuit 117 is configured to receive direct current (DC) power from the non-power battery, convert the DC power into alternating current (AC), and transmit the resultant power to the secondary winding of the first isolated conversion circuit 118. The first isolated conversion circuit 118 is configured to receive AC power having a first voltage from the first secondary conversion circuit 117 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 119. The first primary conversion circuit 119 is configured 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 123. The power factor correction circuit 123 is configured to convert the DC power received from the first primary conversion circuit 119 into AC power. The AC power from the power factor correction circuit 123 is transmitted to a first external load via the switch control circuit 106 of the AC power output assembly 116.

[0227] Example 9

[0228] In one embodiment, the vehicle power supply 100 includes: a first battery 101, a first voltage conversion device 103, and an AC / DC conversion device 112. The first battery 101 and the first voltage conversion device 103 can refer to any of the above embodiments and will not be described in detail here.

[0229] The AC / DC converter 112 is an external DC / DC converter 112. The external DC / DC converter 112 includes a high-voltage DC / AC. A first end of the high-voltage DC / AC is connected to the first battery 101, and a second end of the high-voltage DC / AC is connected to a first external load.

[0230] Example 10

[0231] Referring to Figure 16 , the external load includes a second external load, and the power conversion device 102 includes an AC / DC converter 112 . One embodiment of the present disclosure provides an on-board power supply 100 . At least a portion of the on-board power supply 100 is detachably connected to the vehicle. As shown in Figure 16 , the on-board power supply 100 of this embodiment includes a first battery 101 and an AC / DC converter 112 .

[0232] The first battery 101 is a non-power battery of the vehicle and is used to supply power to a second external load when the battery is disassembled.

[0233] A first end of the AC / DC converter 112 is connected to the first battery 101, and a second end of the AC / DC converter 112 is adapted to connect to a second external load. In the vehicle power supply 100, the AC / DC converter 112 is configured to convert the DC power from the first battery 101 into AC power for the second external load.

[0234] In the vehicle-mounted power supply 100 provided in this embodiment, the non-power battery in the vehicle's battery system 200 can be removed from the vehicle and form a mobile power supply together with the AC power conversion device. The AC-DC conversion device 112 can convert the DC power of the non-power battery into AC power for the second external load, so that the vehicle's battery system 200 can be fully utilized when in an idle state, while meeting the owner's external AC power demand, thereby improving the owner's vehicle-using experience.

[0235] In one embodiment, the first battery 101 is at least one of a secondary battery, an iron battery, and a supercapacitor.

[0236] In one embodiment, the vehicle power supply 100 further includes a storage compartment 108 . The first battery 101 and the AC / DC converter 112 are accommodated in the storage compartment 108 .

[0237] The storage compartment 108 is provided with a locking mechanism 109. The locking mechanism 109 is used to be opened when the on-board power supply 100 is electrically disconnected from the vehicle, so as to remove the on-board power supply 100.

[0238] Storage compartment 108 is provided with an AC power output interface, to which the second end of AC / DC converter 112 is connected to output AC power. Storage compartment 108 is also provided with an electrical connection interface 111, to which first battery 101 is connected. First battery 101 is adapted to be electrically connected to the vehicle via electrical connection interface 111.

[0239] Example 11

[0240] In one embodiment, an on-board power supply 100 includes a first battery 101 and an AC / DC converter 112. First battery 101 is the vehicle's non-power battery. AC / DC converter 112 is the vehicle's AC / DC converter 112. The vehicle's AC / DC converter 112 includes a high-voltage DC / low-voltage DC 113, a high-voltage DC / DC 114, a high-voltage AC / DC 115, and an AC output assembly 116, all connected in sequence. See Figure 17 for a block diagram of the on-board power supply 100 in this embodiment.

[0241] In the vehicle power supply 100 , a first end of the vehicle's AC / DC converter 112 is connected to the vehicle's non-power battery, and a second end of the vehicle's AC / DC converter 112 is suitable for connecting to a second external load.

[0242] In the vehicle, a first end of the AC / DC converter 112 of the vehicle is connected to the non-power battery, and a second end of the AC / DC converter 112 of the vehicle is suitable for detachably connecting to an AC power load of the vehicle.

[0243] Figure 18 shows a schematic diagram of the battery system 200 after the non-power battery and AC / DC converter 112 are removed from the vehicle's battery system 200. The dotted box 1 indicates the location of the non-power battery in the vehicle's battery system 200. The dotted box 2 indicates the location of the high-voltage DC / low-voltage DC 113 in the vehicle's battery system 200. The dotted box 3 indicates the location of the high-voltage DC / DC 114 in the vehicle's battery system 200. The dotted box 4 indicates the location of the high-voltage AC / DC 115 in the vehicle's battery system 200. The dotted box 5 indicates the location of the AC output assembly 116 in the vehicle's battery system 200.

[0244] Referring to Figure 17, in the vehicle power supply 100, the first end of the high-voltage DC / low-voltage DC 113 is connected to the non-power battery, the second end of the high-voltage DC / low-voltage DC 113 is connected to the first end of the high-voltage DC / DC 114, the second end of the high-voltage DC / DC 114 is connected to the first end of the high-voltage AC / DC 115, the second end of the high-voltage AC / DC 115 is connected to the first end of the AC output assembly 116, and the second end of the AC output assembly 116 is connected to the second external load.

[0245] 19 , the high-voltage DC / low-voltage DC 113 includes a first primary-side conversion circuit 119 , a first isolation conversion circuit 118 , and a first secondary-side conversion circuit 117 .

[0246] The high-voltage DC / DC 114 includes a second primary conversion circuit 122 , a second isolation conversion circuit 121 , and a second secondary conversion circuit 120 . The high-voltage AC / DC 115 includes a power factor correction circuit 123 . The AC output assembly 116 includes a switch control circuit 106 .

[0247] The first end of the first secondary conversion circuit 117 is connected to the non-power battery, the second end of the first secondary conversion circuit 117 is connected to the first end of the first isolation conversion circuit 118, the second end of the first isolation conversion circuit 118 is connected to the first end of the first primary conversion circuit 119, and the second end of the first primary conversion circuit 119 is connected to the first end of the second secondary conversion circuit 120.

[0248] The second end of the second secondary conversion circuit 120 is connected to the first end of the second isolation conversion circuit 121, the second end of the second isolation conversion circuit 121 is connected to the first end of the second primary conversion circuit 122, the second end of the second primary conversion circuit 122 is connected to the first end of the power factor correction circuit 123, the second end of the power factor correction circuit 123 is connected to the first end of the switch control circuit 106, and the switch control circuit 106 is connected to the second external vehicle load.

[0249] The first secondary conversion circuit 117 is configured to receive direct current (DC) from the non-power battery, convert the DC power into alternating current (AC), and transmit the resultant power to the secondary winding of the first isolation conversion circuit 118. The first isolation conversion circuit 118 is configured to receive AC power having a first voltage from the first secondary conversion circuit 117 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 119. The first primary conversion circuit 119 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 120 of the high-voltage DC / DC converter 114.

[0250] The second secondary conversion circuit 120 is configured to receive direct current (DC) power from the first primary conversion circuit 119, convert the DC power into alternating current (AC), and transmit the resultant power to the secondary winding of the second isolated conversion circuit 121. The second isolated conversion circuit 121 is configured to receive AC power having a third voltage from the second secondary conversion circuit 120 via its secondary winding, generate AC power having a fourth voltage on its primary winding, and transmit the resultant power to the second primary conversion circuit 122. The second primary conversion circuit 122 is configured 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 123. The power factor correction circuit 123 is configured to convert the DC power received from the second primary conversion circuit 122 into AC power. The AC power from the power factor correction circuit 123 is transmitted to a second external load via the switch control circuit 106 of the AC power output assembly 116.

[0251] The vehicle power supply 100 further includes a storage compartment 108 . The vehicle's non-power battery and the vehicle's AC / DC converter 112 are housed in the storage compartment 108 .

[0252] The storage compartment 108 is provided with a locking mechanism 109. The locking mechanism 109 is used to be opened when the on-board power supply 100 is electrically disconnected from the vehicle, so as to remove the on-board power supply 100.

[0253] Storage compartment 108 is provided with an AC power output interface, to which the second end of AC / DC converter 112 is connected to output AC power. Storage compartment 108 is also provided with an electrical connection interface 111, to which first battery 101 is connected. First battery 101 is adapted to be electrically connected to the vehicle via electrical connection interface 111.

[0254] The vehicle-mounted power supply 100 provided in this embodiment, the non-power battery and the AC power conversion device in the vehicle's battery system 200 can be removed from the vehicle to form a mobile power supply. The AC-DC conversion device 112 can convert the DC power of the non-power battery into AC power for the second external load, so that the vehicle's battery system 200 can be fully utilized when it is idle, while meeting the owner's external AC power demand, thereby improving the owner's car-using experience.

[0255] Example 12

[0256] In one embodiment, an on-board power supply 100 includes a first battery 101 and an AC / DC converter 112. First battery 101 is the vehicle's non-power battery. AC / DC converter 112 includes a high-voltage DC / low-voltage DC 113, a high-voltage DC / DC 114, a high-voltage AC / DC 115, and an AC output assembly 116, all connected in sequence. High-voltage DC / low-voltage DC 113, high-voltage DC / DC 114, and high-voltage AC / DC 115 are all removable components of the vehicle, while AC output assembly 116 is an external component. See Figure 20 for a block diagram of the structure of the on-board power supply 100 in this embodiment.

[0257] Figure 21 shows a schematic diagram of the vehicle's battery system 200 after the non-power battery and AC / DC converter 112 are partially removed. The dotted box 1 indicates the location of the non-power battery in the vehicle's battery system 200. The dotted box 2 indicates the location of the high-voltage DC / low-voltage DC 113 in the vehicle's battery system 200. The dotted box 3 indicates the location of the high-voltage DC / DC 114 in the vehicle's battery system 200. The dotted box 4 indicates the location of the high-voltage AC / DC 115 in the vehicle's battery system 200.

[0258] Referring to Figure 20, in the vehicle power supply 100, the first end of the high-voltage DC / low-voltage DC 113 is connected to the non-power battery, the second end of the high-voltage DC / low-voltage DC 113 is connected to the first end of the high-voltage DC / DC 114, the second end of the high-voltage DC / DC 114 is connected to the first end of the high-voltage AC / DC 115, the second end of the high-voltage AC / DC 115 is connected to the first end of the AC output assembly 116, and the second end of the AC output assembly 116 is connected to the second external load.

[0259] 19 , the high-voltage DC / low-voltage DC 113 includes a first primary-side conversion circuit 119 , a first isolation conversion circuit 118 , and a first secondary-side conversion circuit 117 .

[0260] The high-voltage DC / DC 114 includes a second primary conversion circuit 122 , a second isolation conversion circuit 121 , and a second secondary conversion circuit 120 . The high-voltage AC / DC 115 includes a power factor correction circuit 123 . The AC output assembly 116 includes a switch control circuit 106 .

[0261] The first end of the first secondary conversion circuit 117 is connected to the non-power battery, the second end of the first secondary conversion circuit 117 is connected to the first end of the first isolation conversion circuit 118, the second end of the first isolation conversion circuit 118 is connected to the first end of the first primary conversion circuit 119, and the second end of the first primary conversion circuit 119 is connected to the first end of the second secondary conversion circuit 120.

[0262] The second end of the second secondary conversion circuit 120 is connected to the first end of the second isolation conversion circuit 121, the second end of the second isolation conversion circuit 121 is connected to the first end of the second primary conversion circuit 122, the second end of the second primary conversion circuit 122 is connected to the first end of the power factor correction circuit 123, the second end of the power factor correction circuit 123 is connected to the first end of the switch control circuit 106, and the switch control circuit 106 is connected to the second external vehicle load.

[0263] The first secondary conversion circuit 117 is configured to receive direct current (DC) from the non-power battery, convert the DC power into alternating current (AC), and transmit the resultant power to the secondary winding of the first isolation conversion circuit 118. The first isolation conversion circuit 118 is configured to receive AC power having a first voltage from the first secondary conversion circuit 117 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 119. The first primary conversion circuit 119 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 120 of the high-voltage DC / DC converter 114.

[0264] The second secondary conversion circuit 120 is configured to receive direct current (DC) power from the first primary conversion circuit 119, convert the DC power into alternating current (AC), and transmit the resultant power to the secondary winding of the second isolated conversion circuit 121. The second isolated conversion circuit 121 is configured to receive AC power having a third voltage from the second secondary conversion circuit 120 via its secondary winding, generate AC power having a fourth voltage on its primary winding, and transmit the resultant power to the second primary conversion circuit 122. The second primary conversion circuit 122 is configured 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 123. The power factor correction circuit 123 is configured to convert the DC power received from the second primary conversion circuit 122 into AC power. The AC power from the power factor correction circuit 123 is transmitted to a second external load via the switch control circuit 106 of the AC power output assembly 116.

[0265] The vehicle power supply 100 further includes a storage compartment 108 , in which the vehicle's non-power battery, high-voltage DC / low-voltage DC 113 , high-voltage DC / DC 114 , and high-voltage AC / DC 115 are housed.

[0266] The storage compartment 108 is provided with a locking mechanism 109. The locking mechanism 109 is used to be opened when the non-power battery is electrically disconnected from the vehicle so as to dismantle the vehicle-mounted power supply 100.

[0267] Storage compartment 108 is provided with an AC power output interface. The second end of high-voltage AC / DC 115 is connected to the AC power output interface to output AC power to an AC power output assembly 116 outside the vehicle. Storage compartment 108 is also provided with an electrical connection interface 111. First battery 101 is connected to electrical connection interface 111. First battery 101 is suitable for electrical connection with the vehicle through electrical connection interface 111.

[0268] The vehicle-mounted power supply 100 provided in this embodiment, the non-power battery in the vehicle's battery system 200, and part of the structure of the AC power conversion device can be removed from the vehicle to form a mobile power supply with the external device. The AC-DC conversion device 112 can convert the DC power of the non-power battery into AC power for the second external load, so that the vehicle's battery system 200 can be fully utilized when it is idle, while meeting the owner's external AC power demand, thereby improving the owner's car-using experience.

[0269] Example 13

[0270] In one embodiment, an on-board power supply 100 includes a first battery 101 and an AC / DC converter 112. First battery 101 is the vehicle's non-power battery. AC / DC converter 112 includes a high-voltage DC / low-voltage DC converter 113, a high-voltage AC / DC converter 115, and an AC output assembly 116, all connected in sequence. These components are all removable from the vehicle. See Figure 22 for a block diagram of the on-board power supply 100 in this embodiment.

[0271] In the vehicle power supply 100 , a first end of the vehicle's AC / DC converter 112 is connected to the vehicle's non-power battery, and a second end of the AC / DC converter 112 is suitable for connecting to a second external load.

[0272] Figure 23 shows a schematic diagram of the battery system 200 after the non-power battery and AC / DC converter 112 are partially removed from the vehicle's battery system 200. The dotted box 1 indicates the location of the non-power battery in the vehicle's battery system 200. The dotted box 2 indicates the location of the high-voltage DC / low-voltage DC 113 in the vehicle's battery system 200. The dotted box 3 indicates the location of the high-voltage AC / DC 115 in the vehicle's battery system 200. The dotted box 4 indicates the location of the AC output assembly 116 in the vehicle's battery system 200.

[0273] Referring to Figure 22, in the vehicle power supply 100, the first end of the high-voltage DC / low-voltage DC 113 is connected to the non-power battery, the second end of the high-voltage DC / low-voltage DC 113 is connected to the first end of the high-voltage AC / DC 115, the second end of the high-voltage AC / DC 115 is connected to the first end of the AC output assembly 116, and the second end of the AC output assembly 116 is connected to the second external load.

[0274] The high voltage DC / low voltage DC 113 includes a first primary conversion circuit 119, a first isolation conversion circuit 118, and a first secondary conversion circuit 117. The circuit diagram of the high voltage DC / low voltage DC 113 can be seen in FIG19 .

[0275] The high voltage AC / DC 115 includes a power factor correction circuit 123. The AC output assembly 116 includes a switch control circuit 106. The circuit diagram of the high voltage AC / DC 115 can be seen in FIG19 .

[0276] The first end of the first secondary conversion circuit 117 is connected to the non-power battery, the second end of the first secondary conversion circuit 117 is connected to the first end of the first isolation conversion circuit 118, the second end of the first isolation conversion circuit 118 is connected to the first end of the first primary conversion circuit 119, the second end of the first primary conversion circuit 119 is connected to the first end of the power factor correction circuit 123, the second end of the power factor correction circuit 123 is connected to the first end of the switch control circuit 106, and the switch control circuit 106 is connected to the second external load.

[0277] The first secondary conversion circuit 117 is configured to receive direct current (DC) power from the non-power battery, convert the DC power into alternating current (AC), and transmit the resultant power to the secondary winding of the first isolated conversion circuit 118. The first isolated conversion circuit 118 is configured to receive AC power having a first voltage from the first secondary conversion circuit 117 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 119. The first primary conversion circuit 119 is configured 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 123. The power factor correction circuit 123 is configured to convert the DC power received from the first primary conversion circuit 119 into AC power. The AC power from the power factor correction circuit 123 is transmitted to a second external load via the switch control circuit 106 of the AC power output assembly 116.

[0278] The vehicle power supply 100 further includes a storage compartment 108 . The vehicle's non-power battery is accommodated in the storage compartment 108 .

[0279] The storage compartment 108 is provided with a locking mechanism 109. The locking mechanism 109 is used to be opened when the non-power battery is electrically disconnected from the vehicle so as to dismantle the vehicle-mounted power supply 100.

[0280] The storage compartment 108 is provided with a first electrical connection interface 111 and a second electrical connection interface 111. The vehicle's non-power battery is connected to the vehicle via the first electrical connection interface 111. The vehicle's non-power battery is connected to the high-voltage DC / low-voltage DC 113 via the second electrical connection interface 111.

[0281] The vehicle-mounted power supply 100 provided in this embodiment, the non-power battery and the AC power conversion device in the vehicle's battery system 200 can be removed from the vehicle to form a mobile power supply. The AC-DC conversion device 112 can convert the DC power of the non-power battery into AC power for the second external load, so that the vehicle's battery system 200 can be fully utilized when it is idle, while meeting the owner's external AC power demand, thereby improving the owner's car-using experience.

[0282] Example 14

[0283] In one embodiment, the vehicle-mounted power supply 100 includes a first battery 101 and an AC / DC converter 112. The first battery 101 is a non-power battery of the vehicle. The AC / DC converter 112 includes: a high-voltage DC / low-voltage DC 113 and a high-voltage DC / AC that are interconnected. The high-voltage DC / low-voltage DC 113 is a complete vehicle device that can be removed from the vehicle, and the high-voltage DC / AC is an external device. The first end of the high-voltage DC / low-voltage DC 113 is connected to the first battery 101, and the second end of the high-voltage DC / low-voltage DC 113 is connected to the first end of the high-voltage DC / AC. The second end of the high-voltage DC / AC is connected to a second external load. For a structural block diagram of the vehicle-mounted power supply 100 of this embodiment, see Figure 24.

[0284] Figure 25 shows a schematic diagram of the battery system 200 after the non-power battery and the high-voltage DC / low-voltage DC 113 are removed from the vehicle's battery system 200. The dotted box 1 indicates the location of the non-power battery in the vehicle's battery system 200. The dotted box 2 indicates the location of the high-voltage DC / low-voltage DC 113 in the vehicle's battery system 200.

[0285] In the vehicle power supply 100, the high-voltage DC / low-voltage DC 113 includes a first primary-side conversion circuit 119, a first isolation conversion circuit 118, and a first secondary-side conversion circuit 117. For a circuit diagram of the high-voltage DC / low-voltage DC 113, see FIG19 .

[0286] The high-voltage DC / AC includes a power factor correction circuit 123. The circuit diagram of the high-voltage DC / AC can be seen in the high-voltage AC / DC 115 shown in FIG19 .

[0287] The first end of the first secondary conversion circuit 117 is connected to the non-power battery, the second end of the first secondary conversion circuit 117 is connected to the first end of the first isolation conversion circuit 118, the second end of the first isolation conversion circuit 118 is connected to the first end of the first primary conversion circuit 119, the second end of the first primary conversion circuit 119 is connected to the first end of the power factor correction circuit 123, the second end of the power factor correction circuit 123 is connected to the first end of the switch control circuit 106, and the switch control circuit 106 is connected to the second external load.

[0288] The first secondary conversion circuit 117 is configured to receive direct current (DC) power from the non-power battery, convert the DC power into alternating current (AC), and transmit the resultant power to the secondary winding of the first isolated conversion circuit 118. The first isolated conversion circuit 118 is configured to receive AC power having a first voltage from the first secondary conversion circuit 117 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 119. The first primary conversion circuit 119 is configured 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 123. The power factor correction circuit 123 is configured to convert the DC power received from the first primary conversion circuit 119 into AC power. The AC power from the power factor correction circuit 123 is transmitted to a second external load via the switch control circuit 106 of the AC power output assembly 116.

[0289] The vehicle power supply 100 further includes a storage compartment 108 , in which the vehicle's non-power battery is housed.

[0290] The storage compartment 108 is provided with a locking mechanism 109. The locking mechanism 109 is used to be opened when the non-power battery is electrically disconnected from the vehicle so as to dismantle the vehicle-mounted power supply 100.

[0291] The storage compartment 108 is provided with a first electrical connection interface 111 and a second electrical connection interface 111. The vehicle's non-power battery is connected to the vehicle via the first electrical connection interface 111. The vehicle's non-power battery is connected to the high-voltage DC / low-voltage DC 113 via the second electrical connection interface 111.

[0292] In one embodiment, AC / DC converter 112 includes interconnected high-voltage DC / low-voltage DC 113, high-voltage DC / AC, and AC output assembly 116. High-voltage DC / low-voltage DC 113 is a fully removable vehicle device, while high-voltage DC / AC and AC output assembly 116 are both off-vehicle devices.

[0293] A first end of the high-voltage DC / low-voltage DC 113 is connected to the first battery 101 , a second end of the high-voltage DC / low-voltage DC 113 is connected to a first end of the high-voltage DC / AC, a second end of the high-voltage DC / AC is connected to a first end of the AC output assembly 116 , and a second end of the AC output assembly 116 is connected to a second external load.

[0294] The vehicle-mounted power supply 100 provided in this embodiment, the non-power battery in the vehicle's battery system 200, and part of the structure of the AC power conversion device can be removed from the vehicle to form a mobile power supply. The AC-DC conversion device 112 can convert the DC power of the non-power battery into AC power for the second external load, so that the vehicle's battery system 200 can be fully utilized when it is idle, while meeting the owner's external AC power demand, thereby improving the owner's car-using experience.

[0295] Example 15

[0296] In one embodiment, an on-board power supply 100 includes a first battery 101 and an AC / DC converter 112. First battery 101 is the vehicle's non-power battery. AC / DC converter 112 is an external DC / DC converter 112. External DC / DC converter 112 includes a high-voltage DC / AC converter. A first terminal of the high-voltage DC / AC converter is connected to first battery 101, and a second terminal of the high-voltage DC / AC converter is connected to a second external load. For a block diagram of the on-board power supply 100 of this embodiment, see Figure 26.

[0297] In one embodiment, the off-vehicle DC / AC converter 112 includes a low-voltage DC / AC, a first end of which is connected to the first battery 101 , and a second end of which is connected to a second off-vehicle load.

[0298] The vehicle power supply 100 further includes a storage compartment 108 , in which the vehicle's non-power battery is housed.

[0299] The storage compartment 108 is provided with a locking mechanism 109. The locking mechanism 109 is used to be opened when the non-power battery is electrically disconnected from the vehicle so as to dismantle the vehicle-mounted power supply 100.

[0300] The storage compartment 108 is provided with a first electrical connection interface 111 and a second electrical connection interface 111. The non-power battery of the vehicle is connected to the vehicle through the first electrical connection interface 111. The non-power battery of the vehicle is connected to the high-voltage DC / AC through the second electrical connection interface 111.

[0301] In the vehicle-mounted power supply 100 provided in this embodiment, the non-power battery in the vehicle's battery system 200 can be removed from the vehicle and form a mobile power supply together with the external DC converter 112. The AC / DC converter 112 can convert the DC power of the non-power battery into AC power for a second external load, so that the vehicle's battery system 200 can be fully utilized when in an idle state, while meeting the owner's external AC power demand, thereby improving the owner's vehicle-using experience.

[0302] Example 16

[0303] In one embodiment, the vehicle power supply 100 includes a first battery 101, an AC / DC converter 112, and a voltage converter. The first battery 101 and the AC / DC converter 112 may refer to any of the above embodiments.

[0304] The first end of the voltage conversion device is connected to the first battery 101, and the second end of the voltage conversion device is suitable for connecting to a second external load. In the vehicle power supply 100, the voltage conversion device is used to convert the voltage of the first battery 101 and output DC power to the second external load.

[0305] In one embodiment, the voltage conversion device includes a low voltage output assembly 104 of the vehicle.

[0306] In one embodiment, the first voltage conversion device 103 includes an off-vehicle voltage conversion device 105 .

[0307] The voltage conversion device can step down the voltage of the first battery 101 and output direct current to the second external load, or can step up the voltage of the first battery 101 and output direct current to the second external load.

[0308] The voltage conversion device includes a switch control circuit 106 and a voltage conversion circuit 107. A first terminal of the switch control circuit 106 is connected to the first battery 101. A first terminal of the voltage conversion circuit 107 is connected to a second terminal of the switch control circuit 106. A second terminal of the voltage conversion circuit 107 is adapted to be connected to a second external load.

[0309] The vehicle-mounted power supply 100 provided in this embodiment, the non-power battery in the vehicle's battery system 200 can be removed from the vehicle and form a mobile power supply together with the voltage conversion device and the AC conversion device. The voltage conversion device converts the voltage of the non-power battery and outputs DC power to power a second external load. The AC-DC conversion device 112 can convert the DC power of the non-power battery into AC power for the second external load, so that the vehicle's battery system 200 can be fully utilized when in an idle state, while meeting the owner's external DC and AC power needs, thereby improving the owner's car-using experience.

[0310] <Embodiment of Vehicle Battery System 200>

[0311] An embodiment of the present disclosure provides a vehicle battery system 200. The vehicle battery system 200 of this embodiment includes a power battery assembly 201 and the vehicle power supply 100 provided in any of the above embodiments.

[0312] In one embodiment, the battery system 200 further includes a second voltage conversion device 206 , wherein a first end of the second voltage conversion device 206 is connected to the power battery assembly 201 . The second voltage conversion device 206 is configured to convert the voltage output by the power battery assembly 201 . A second end of the second voltage conversion device 206 is connected to the vehicle power supply 100 .

[0313] In one embodiment, the first battery 101 of the on-board power supply 100 is the vehicle's non-power battery, and the first voltage conversion device 103 of the on-board power supply 100 includes the vehicle's low-voltage output assembly 104. When neither the vehicle's non-power battery nor the vehicle's low-voltage output assembly 104 is removed from the vehicle, the first end of the second voltage conversion device 206 is connected to the power battery assembly 201, and the second end of the second voltage conversion device 206 is connected to the vehicle's non-power battery and the vehicle's low-voltage output assembly 104, respectively.

[0314] In one embodiment, the first battery 101 of the vehicle power supply 100 is the vehicle's non-power battery, and the first voltage conversion device 103 of the vehicle power supply 100 includes an off-vehicle voltage conversion device 105. When the vehicle's non-power battery is not removed from the vehicle, the first end of the second voltage conversion device 206 is connected to the power battery assembly 201, and the second end of the second voltage conversion device 206 is connected to the vehicle's non-power battery.

[0315] In one embodiment, the second voltage conversion device 206 shown in FIG. 7 includes a high voltage DC / low voltage DC 113 .

[0316] 8 , the high-voltage DC / low-voltage DC 113 includes a first primary-side conversion circuit 119 , a first isolation conversion circuit 118 , and a first secondary-side conversion circuit 117 .

[0317] The first end of the first primary conversion circuit 119 is connected to the power battery assembly 201, the second end of the first primary conversion circuit 119 is connected to the first end of the first isolation conversion circuit 118, the second end of the first isolation conversion circuit 118 is connected to the first end of the first secondary conversion circuit 117, and the second end of the first secondary conversion circuit 117 is connected to the vehicle power supply 100.

[0318] The first primary conversion circuit 119 is configured to receive direct current (DC) power from the power battery assembly 201, convert the DC power into alternating current (AC), and transmit the resultant power to the primary winding of the first isolation conversion circuit 118. The first isolation conversion circuit 118 is configured to receive AC power having a first voltage from the first primary conversion circuit 119 via the primary winding, generate AC power having a second voltage on the secondary winding, and transmit the resultant power to the first secondary conversion circuit 117. The first secondary conversion circuit 117 is configured to receive AC power from the secondary winding, convert the AC power into DC power, and transmit the resultant power to the vehicle power supply 100.

[0319] In one embodiment, the vehicle battery system 200 further includes an AC / DC converter 112. A first terminal of the AC / DC converter 112 is connected to the power battery assembly 201, and a second terminal of the AC / DC converter 112 is connected to an AC power load.

[0320] Referring to Figure 9 , AC / DC converter 112 includes a high-voltage DC / DC 114, a high-voltage AC / DC 115, and an AC output assembly 116, which are connected in sequence. A first terminal of high-voltage DC / DC 114 is connected to power battery assembly 201, a second terminal of high-voltage DC / DC 114 is connected to a first terminal of high-voltage AC / DC 115, a second terminal of high-voltage AC / DC 115 is connected to a first terminal of AC output assembly 116, and a second terminal of AC output assembly 116 is connected to an AC load.

[0321] 10 , the high-voltage DC / DC 114 includes a second secondary conversion circuit 120 , a second isolation conversion circuit 121 , and a second primary conversion circuit 122 . The high-voltage AC / DC 115 includes a power factor correction circuit 123 . The AC output assembly 116 includes a switch control circuit 106 .

[0322] The first end of the second secondary conversion circuit 120 is connected to the power battery assembly 201, the second end of the second secondary conversion circuit 120 is connected to the first end of the second isolation conversion circuit 121, the second end of the second isolation conversion circuit 121 is connected to the first end of the second primary conversion circuit 122, the second end of the second primary conversion circuit 122 is connected to the first end of the power factor correction circuit 123, the second end of the power factor correction circuit 123 is connected to the first end of the switch control circuit 106, and the switch control circuit 106 is connected to the AC power load.

[0323] The second secondary conversion circuit 120 is used to receive direct current (DC) power from the power battery assembly 201, convert the DC power into alternating current (AC), and transmit the resultant power to the secondary winding of the second isolated conversion circuit 121. The second isolated conversion circuit 121 is used to receive AC power having a third voltage from the second secondary conversion circuit 120 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 122. The second primary conversion circuit 122 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 123. The power factor correction circuit 123 is used to convert the DC power received from the second primary conversion circuit 122 into AC power. The AC power from the power factor correction circuit 123 is transmitted to the AC power load connection via the switch control circuit 106 of the AC power output assembly 116.

[0324] In one embodiment, referring to FIG. 11 , the vehicle battery system 200 further includes a second battery 207. A first end of the second battery 207 is connected to the second voltage conversion device 206, and a second end of the second battery 207 is adapted to be connected to a non-powered load of the vehicle. The second battery 207 is configured to power the vehicle's non-powered loads when the vehicle power supply 100 is removed. This ensures that the power requirements of the vehicle's non-powered loads are met when the vehicle power supply 100 is removed, without disrupting the operation of the vehicle's non-powered loads.

[0325] In this embodiment, referring to FIG11 , when the first battery 101 is not removed from the vehicle, both the first battery 101 and the second battery 207 power the vehicle's non-powered loads. In another embodiment, when the first battery 101 is not removed from the vehicle, only the first battery 101 powers the vehicle's non-powered loads, and when the first battery 101 is removed from the vehicle, the second battery 207 powers the vehicle's non-powered loads.

[0326] In one embodiment, either the first battery 101 or the second battery 207 can be removed from the vehicle to form the vehicle-mounted power supply 100 together with the first voltage conversion device 103 .

[0327] The second battery 207 is at least one of a storage battery, an iron battery, and a supercapacitor.

[0328] In one embodiment, as shown in Figure 12 , the vehicle's battery system 200 further includes an auxiliary DC power source 202. When the onboard power supply 100 is removed, the first end of the auxiliary DC power source 202 is connected to the power battery assembly 201 via the switch control circuit 106, and the second end of the auxiliary DC power source 202 is connected to the vehicle's non-powered loads. The auxiliary DC power source 202 is configured to operate while the onboard power supply 100 is removed, powering the vehicle's non-powered loads. This ensures that the power requirements of the vehicle's non-powered loads are met when the onboard power supply 100 is removed, without disrupting their operation.

[0329] When the vehicle power supply 100 is not removed, the first end of the auxiliary DC power source 202 is electrically disconnected from the power battery assembly 201. When the vehicle power supply 100 is removed, the switch in the switch control circuit 106 is closed, and the first end of the auxiliary DC power source 202 is electrically connected to the power battery assembly 201.

[0330] 15 , the auxiliary source DC 202 includes a third primary conversion circuit 203, a third isolation conversion circuit 204, and a third secondary conversion circuit 205. The detailed circuit diagrams of the auxiliary source DC 202 can be found in FIG8 and FIG15 .

[0331] The first end of the third primary conversion circuit 203 is connected to the power battery assembly 201, the second end of the third primary conversion circuit 203 is connected to the first end of the third isolation conversion circuit 204, the second end of the third isolation conversion is connected to the first end of the third secondary conversion circuit 205, and the second end of the third secondary conversion circuit 205 is connected to the non-power load of the vehicle.

[0332] The third primary conversion circuit 203 is configured to receive direct current (DC) power from the power battery assembly 201, convert the DC power into alternating current (AC), and transmit the resultant power to the primary winding of the third isolation conversion circuit 204. The third isolation conversion circuit 204 is configured to receive AC power having a fifth voltage from the third primary conversion circuit 203 via the primary winding, generate AC power having a sixth voltage on the secondary winding, and transmit the resultant power to the third secondary conversion circuit 205. The third secondary conversion circuit 205 is configured to receive AC power from the secondary winding, convert the AC power into DC power, and transmit the resultant power to the vehicle's non-power loads.

[0333] FIG13 shows another schematic diagram of a vehicle battery system 200 . Referring to FIG13 , the vehicle battery system 200 includes a power battery assembly 201 , a power distribution circuit, a second voltage conversion device 206 , an AC / DC conversion device 112 , a non-power battery, and a first voltage conversion device 103 .

[0334] The first end of the second voltage conversion device 206 is connected to the power battery assembly 201 via a power distribution circuit, and the second end of the second voltage conversion device 206 is connected to the non-power battery. The second end of the second voltage conversion device 206 is also connected to the first end of the first voltage conversion device 103. The non-power battery is connected to the first end of the first voltage conversion device 103. The second end of the first voltage conversion device 103 is connected to the non-power load of the vehicle.

[0335] A first end of the AC / DC converter 112 is connected to the power battery assembly 201 through a power distribution circuit, and a second end of the AC / DC converter 112 is connected to an AC power load.

[0336] The first voltage conversion device 103 includes a low-voltage output assembly 104. The low-voltage output assembly 104 includes a switch control circuit 106 and a voltage conversion circuit 107. A first terminal of the switch control circuit 106 is connected to a non-power battery. A first terminal of the voltage conversion circuit 107 is connected to a second terminal of the switch control circuit 106. A second terminal of the voltage conversion circuit 107 is connected to a non-power load of the vehicle.

[0337] The second voltage conversion device 206 includes a high voltage DC / low voltage DC 113. The specific circuit diagram of the high voltage DC / low voltage DC 113 is shown in FIG8 .

[0338] The AC / DC converter 112 includes a high-voltage DC / DC 114, a high-voltage AC / DC 115, and an AC output assembly 116. A detailed circuit diagram of the high-voltage DC / DC 114 and the high-voltage AC / DC 115 is shown in FIG10 . The AC output assembly 116 includes a switch control circuit 106.

[0339] The power distribution circuit includes at least one fuse and at least one control switch.

[0340] The power battery assembly 201 supplies power to the non-power loads of the vehicle through the power distribution circuit, the second voltage conversion device 206 , and the first voltage conversion device 103 .

[0341] The power battery assembly 201 outputs high-voltage AC power to power AC loads through the power distribution circuit and the AC / DC converter 112. The high-voltage AC power is within the high-voltage standard range, such as 220V and 380V.

[0342] Non-power batteries can also power non-power loads.

[0343] The power battery assembly 201 supplies power to the vehicle's power system through a power distribution circuit. Specifically, the power battery assembly 201 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 generate torque.

[0344] The power battery supplies power to the air-conditioning compressor and PTC (Positive Temperature Coefficient) heater through the power distribution circuit.

[0345] 13 , the AC power output by the charging device is used to charge the power battery via the AC charging port and the AC-DC converter 112 .

[0346] In conjunction with Figure 10, the power factor correction circuit 123 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 122. The second primary conversion circuit 122 is used to receive DC power from the power factor correction circuit 123, convert the DC power into AC power, and transmit it to the second isolation conversion circuit 121. The second isolation conversion circuit 121 is used to receive AC power with a voltage value of a first voltage from the second primary conversion circuit 122 through the primary winding, and generate AC power with a voltage value of a second voltage through the secondary winding and transmit it to the second secondary conversion circuit 120. The second secondary conversion circuit 120 is used to receive AC power from the secondary winding of the second isolation conversion circuit 121, convert the AC power into DC power, and transmit it to the power battery assembly 201 through the distribution circuit to charge the power battery.

[0347] The AC power output by the charging device is used to charge the non-power battery via the AC charging port, the AC / DC converter 112 and the voltage converter.

[0348] In conjunction with Figures 8 and 10 , the power factor correction circuit 123 is configured to receive AC power from the charging device, convert the AC power into DC power, and transmit it to the second primary conversion circuit 122. The second primary conversion circuit 122 is configured to receive DC power from the power factor correction circuit 123, convert the DC power into AC power, and transmit it to the second isolation conversion circuit 121. The second isolation conversion circuit 121 is configured to receive AC power having a first voltage from the second primary conversion circuit 122 via its primary winding, generate AC power having a second voltage at its secondary winding, and transmit the generated AC power to the second secondary conversion circuit 120. The second secondary conversion circuit 120 is configured to receive AC power from the secondary winding of the second isolation conversion circuit 121, convert the AC power into DC power, and transmit the generated AC power to the first primary conversion circuit 119 via the power distribution circuit. The first primary conversion circuit 119 is configured to receive DC power from the second secondary conversion circuit 120, convert the DC power into AC power, and transmit the generated AC power to the primary winding of the first isolation conversion circuit 118. The first isolation conversion circuit 118 is configured to receive AC power having a third voltage from the first primary conversion circuit 119 via the primary winding, generate AC power having a fourth voltage on the secondary winding, and transmit the generated AC power to the first secondary conversion circuit 117. The first secondary conversion circuit 117 is configured to receive AC power from the secondary winding, convert the AC power into DC power, and transmit the DC power to the non-power battery.

[0349] In one embodiment, the non-power battery and the first voltage conversion device 103 are removed from the vehicle to form the vehicle-mounted power supply 100 .

[0350] In one embodiment, the non-power battery is removed from the vehicle and forms the vehicle-mounted power supply 100 together with the off-vehicle voltage conversion device 105 .

[0351] One embodiment of the present disclosure provides a vehicle battery system 200. As shown in FIG27 , the vehicle battery system 200 of this embodiment includes a power battery assembly 201 and an onboard power supply 100 provided in any of the above embodiments. The power battery assembly 201 is connected to a first battery 101 via a high-voltage DC / low-voltage DC 113.

[0352] In one embodiment, as shown in FIG28 , the vehicle battery system 200 further includes a voltage conversion device. A first terminal of the voltage conversion device is connected to the first battery 101, and a second terminal of the voltage conversion device is connected to a non-powered load of the vehicle. The voltage conversion device is configured to convert the voltage of the first battery 101 and output direct current (DC) to the non-powered load of the vehicle.

[0353] The voltage conversion device includes a low-voltage output assembly 104. Low-voltage output assembly 104 includes a switch control circuit 106 and a voltage conversion circuit 107. A first terminal of switch control circuit 106 is connected to first battery 101. A first terminal of voltage conversion circuit 107 is connected to a second terminal of switch control circuit 106. A second terminal of voltage conversion circuit 107 is adapted to be connected to a second external load.

[0354] In one embodiment, referring to FIG. 29 , the vehicle battery system 200 further includes a second battery 207. A first end of the second battery 207 is connected to the AC / DC converter 112, and a second end of the second battery 207 is adapted to be connected to a non-powered load of the vehicle. The second battery 207 is configured to power the vehicle's non-powered loads when the vehicle power supply 100 is removed. This ensures that the vehicle's non-powered loads are fully powered when the vehicle power supply 100 is removed, without disrupting their operation.

[0355] In this embodiment, referring to FIG. 29 , when the first battery 101 is not removed from the vehicle, both the first battery 101 and the second battery 207 power the vehicle's non-powered loads. In another embodiment, when the first battery 101 is not removed from the vehicle, only the first battery 101 powers the vehicle's non-powered loads, and when the first battery 101 is removed from the vehicle, the second battery 207 powers the vehicle's non-powered loads.

[0356] In one embodiment, either the first battery 101 or the second battery 207 can be removed from the vehicle to form the vehicle-mounted power supply 100 together with the first voltage conversion device 103 .

[0357] The second battery 207 is at least one of a storage battery, an iron battery, and a supercapacitor.

[0358] In one embodiment, referring to FIG30 , the vehicle battery system 200 further includes an auxiliary DC power source 202. A first end of the auxiliary DC power source 202 is connected to the power battery assembly 201 via the switch control circuit 106 , and a second end of the auxiliary DC power source 202 is connected to the vehicle's non-powered loads. When the onboard power source 100 is removed, the auxiliary DC power source 202 is used to power the vehicle's non-powered loads. This ensures that the power requirements of the vehicle's non-powered loads are met when the onboard power source 100 is removed, without affecting the operation of the vehicle's non-powered loads.

[0359] When the vehicle power supply 100 is not removed, the first end of the auxiliary DC power source 202 is electrically disconnected from the power battery assembly 201. When the vehicle power supply 100 is removed, the switch in the switch control circuit 106 is closed, and the first end of the auxiliary DC power source 202 is electrically connected to the power battery assembly 201.

[0360] The auxiliary source DC 202 includes a third primary conversion circuit 203, a third isolation conversion circuit 204, and a third secondary conversion circuit 205. The circuit diagram of the auxiliary source DC 202 can be seen in the high voltage DC / low voltage DC 113 shown in FIG19 .

[0361] The first end of the third primary conversion circuit 203 is connected to the power battery assembly 201, the second end of the third primary conversion circuit 203 is connected to the first end of the third isolation conversion circuit 204, the second end of the third isolation conversion is connected to the first end of the third secondary conversion circuit 205, and the second end of the third secondary conversion circuit 205 is connected to the non-power load of the vehicle.

[0362] The third primary conversion circuit 203 is configured to receive direct current (DC) power from the power battery assembly 201, convert the DC power into alternating current (AC), and transmit the resultant power to the primary winding of the third isolation conversion circuit 204. The third isolation conversion circuit 204 is configured to receive AC power having a fifth voltage from the third primary conversion circuit 203 via the primary winding, generate AC power having a sixth voltage on the secondary winding, and transmit the resultant power to the third secondary conversion circuit 205. The third secondary conversion circuit 205 is configured to receive AC power from the secondary winding, convert the AC power into DC power, and transmit the resultant power to the vehicle's non-power loads.

[0363] Figure 31 shows another schematic diagram of a vehicle battery system 200. Referring to Figure 31, the vehicle battery system 200 includes a power battery assembly 201, a power distribution circuit, an AC / DC converter 112, a non-power battery, and a voltage converter.

[0364] A first end of the AC / DC converter 112 is connected to the power battery assembly 201 through a power distribution circuit, and a second end of the AC / DC converter 112 is connected to an AC power load.

[0365] The voltage conversion device includes a low-voltage output assembly 104. Low-voltage output assembly 104 includes a switch control circuit 106 and a voltage conversion circuit 107. A first terminal of switch control circuit 106 is connected to a non-power battery. A first terminal of voltage conversion circuit 107 is connected to a second terminal of switch control circuit 106. A second terminal of voltage conversion circuit 107 is connected to a non-power load of the vehicle.

[0366] AC / DC converter 112 includes a high-voltage DC / low-voltage DC converter 113, a high-voltage DC / DC converter 114, a high-voltage AC / DC converter 115, and an AC power output assembly 116. Detailed circuit diagrams of high-voltage DC / low-voltage DC converter 113, high-voltage DC / DC converter 114, and high-voltage AC / DC converter 115 can be found in the aforementioned embodiments. AC / DC converter 116 includes a switch control circuit 106.

[0367] The power distribution circuit includes at least one fuse and at least one control switch.

[0368] The power battery assembly 201 supplies power to the vehicle's non-power loads via the high-voltage DC / low-voltage DC 113 and the voltage conversion device.

[0369] The power battery assembly 201 outputs high-voltage AC power to AC loads through the high-voltage DC / DC 114, the high-voltage AC / DC 115, and the AC output assembly 116. The high-voltage AC power is within the high-voltage standard range, such as 220V and 380V.

[0370] Non-power batteries can also power non-power loads.

[0371] The power battery assembly 201 supplies power to the vehicle's power system through a power distribution circuit. Specifically, the power battery assembly 201 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 generate torque.

[0372] The power battery supplies power to the air-conditioning compressor and PTC (Positive Temperature Coefficient) heater through the power distribution circuit.

[0373] 31 , the AC power output by the charging device is used to charge the power battery via the AC charging port through the high-voltage AC / DC 115 and the high-voltage DC / DC 114 .

[0374] In conjunction with Figure 19, the power factor correction circuit 123 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 122. The second primary conversion circuit 122 is used to receive DC power from the power factor correction circuit 123, convert the DC power into AC power, and transmit it to the second isolation conversion circuit 121. The second isolation conversion circuit 121 is used to receive AC power with a first voltage value from the second primary conversion circuit 122 through the primary winding, and generate AC power with a second voltage value through the secondary winding and transmit it to the second secondary conversion circuit 120. The second secondary conversion circuit 120 is used to receive AC power from the secondary winding of the second isolation conversion circuit 121, convert the AC power into DC power, and transmit it to the power battery assembly 201 through the distribution circuit to charge the power battery.

[0375] The AC power output by the charging device is used to charge the non-power battery via the AC charging port through high-voltage AC / DC 115, high-voltage DC / DC 114, and high-voltage DC / low-voltage DC 113.

[0376] In conjunction with Figure 19 , the power factor correction circuit 123 is configured to receive AC power from the charging device, convert the AC power into DC power, and transmit it to the second primary conversion circuit 122. The second primary conversion circuit 122 is configured to receive DC power from the power factor correction circuit 123, convert the DC power into AC power, and transmit it to the second isolation conversion circuit 121. The second isolation conversion circuit 121 is configured to receive AC power having a first voltage from the second primary conversion circuit 122 via its primary winding, generate AC power having a second voltage at its secondary winding, and transmit the generated AC power to the second secondary conversion circuit 120. The second secondary conversion circuit 120 is configured to receive AC power from the secondary winding of the second isolation conversion circuit 121, convert the AC power into DC power, and transmit the generated AC power to the first primary conversion circuit 119 via the power distribution circuit. The first primary conversion circuit 119 is configured to receive DC power from the second secondary conversion circuit 120, convert the DC power into AC power, and transmit the generated AC power to the primary winding of the first isolation conversion circuit 118. The first isolation conversion circuit 118 is configured to receive AC power having a third voltage from the first primary conversion circuit 119 via the primary winding, generate AC power having a fourth voltage on the secondary winding, and transmit the generated AC power to the first secondary conversion circuit 117. The first secondary conversion circuit 117 is configured to receive AC power from the secondary winding, convert the AC power into DC power, and transmit the DC power to the non-power battery.

[0377] <Vehicle Example>

[0378] An embodiment of the present disclosure provides a vehicle, including a battery system 200 of the vehicle according to any of the above embodiments.

[0379] 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.

[0380] 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.

[0381] 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.

[0382] A computer-readable storage medium may be a tangible device that can hold and store computer instructions for use by a computer instruction execution device. A computer-readable storage medium may 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 of the foregoing. 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 disc (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 of the foregoing. 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.

[0383] 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.

[0384] 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.

[0385] 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 (100), wherein at least part of the device of the vehicle-mounted power supply (100) is detachably connected to the vehicle, characterized in that: include: A first battery (101), the first battery (101) being a non-power battery of the vehicle, and the first battery (101) being used to supply power to an external load of the vehicle when in a disassembled state; and An electric energy conversion device (102), wherein a first end of the electric energy conversion device (102) is connected to the first battery (101), and a second end of the electric energy conversion device (102) is suitable for connecting to the external load. In the vehicle-mounted power supply (100), the electric energy conversion device (102) is used to convert the electric energy of the first battery (101) to supply power to the external load.

2. The vehicle-mounted power supply (100) according to claim 1, characterized in that: The off-vehicle load comprises a first off-vehicle load, the electric energy conversion device (102) comprises a first voltage conversion device (103), a first end of the first voltage conversion device (103) is connected to the first battery (101), a second end of the first voltage conversion device (103) is suitable for connecting to the first off-vehicle load, and in the on-vehicle power supply (100), the first voltage conversion device (103) is used to convert the voltage of the first battery (101) and output direct current to the first off-vehicle load.

3. The vehicle-mounted power supply (100) according to claim 2, characterized in that: The first voltage conversion device (103) comprises a low-voltage output assembly (104) of the vehicle, a first end of the low-voltage output assembly (104) of the vehicle being connected to the first battery (101), and a second end of the low-voltage output assembly (104) of the vehicle being suitable for being detachably connected to a non-power load of the vehicle.

4. The vehicle-mounted power supply (100) according to claim 2 or 3, characterized in that: The first voltage conversion device (103) comprises an off-vehicle voltage conversion device (105), a first end of the off-vehicle voltage conversion device (105) is connected to the first battery (101), and a second end of the off-vehicle voltage conversion device (105) is suitable for connecting to the first off-vehicle load.

5. The vehicle-mounted power supply (100) according to any one of claims 2 to 4, characterized in that: The first voltage conversion device (103) comprises: a switch control circuit (106), a first end of the switch control circuit (106) being connected to the first battery (101); and A voltage conversion circuit (107), wherein a first end of the voltage conversion circuit (107) is connected to a second end of the switch control circuit (106), and a second end of the voltage conversion circuit (107) is suitable for being connected to the first external vehicle load.

6. The vehicle-mounted power supply (100) according to any one of claims 2 to 5, characterized in that: The first battery (101) is at least one of a storage battery, an iron battery and a super capacitor.

7. The vehicle-mounted power supply (100) according to any one of claims 2 to 6, characterized in that: The vehicle-mounted power supply (100) further comprises a storage compartment (108), in which the first battery (101) and the first voltage conversion device (103) are accommodated.

8. The vehicle-mounted power supply (100) according to claim 7, characterized in that: The storage bin (108) is provided with a locking mechanism (109), and the locking mechanism (109) is used to open when the electrical connection between the vehicle-mounted power supply (100) and the vehicle is disconnected, so as to dismantle the vehicle-mounted power supply (100).

9. The vehicle-mounted power supply (100) according to claim 7 or 8, characterized in that: The storage bin (108) is provided with a low-voltage output interface (110), and the second end of the first voltage conversion device (103) is connected to the low-voltage output interface (110) to output direct current.

10. The vehicle-mounted power supply (100) according to any one of claims 7 to 9, characterized in that: The storage bin (108) is also provided with an electrical connection interface (111), the first battery (101) is connected to the electrical connection interface (111), and the first battery (101) is suitable for being electrically connected to the vehicle through the electrical connection interface (111).

11. The vehicle-mounted power supply (100) according to any one of claims 1 to 10, characterized in that: The on-board load comprises a second off-board load, the electric energy conversion device (102) comprises an AC / DC conversion device (112), a first end of the AC / DC conversion device (112) is connected to the first battery (101), and a second end of the AC / DC conversion device (112) is suitable for connecting to the second off-board load. In the on-board power supply (100), the AC / DC conversion device (112) is used to convert the DC power of the first battery (101) into AC power for the second off-board load.

12. The vehicle-mounted power supply (100) according to claim 11, characterized in that: The AC / DC conversion device (112) is an AC / DC conversion device (112) for a vehicle, and the AC / DC conversion device (112) for a vehicle comprises: a high-voltage DC / low-voltage DC (113), a high-voltage DC / DC (114), a high-voltage AC / DC (115), and an AC output assembly (116) connected in sequence, and the high-voltage DC / low-voltage DC (113), the high-voltage DC / DC (114), the high-voltage AC / DC (115), and the AC output assembly (116) are all complete vehicle devices that can be removed from the vehicle.

13. The vehicle-mounted power supply (100) according to claim 11 or 12, characterized in that: The AC / DC conversion device (112) comprises: a high voltage DC / low voltage DC (113), a high voltage DC / DC (114), a high voltage AC / DC (115) and an AC output assembly (116) connected in sequence; The high-voltage DC / low-voltage DC (113), the high-voltage DC / DC (114) and the high-voltage AC / DC (115) are all complete vehicle devices that can be removed from the vehicle, and the alternating current output assembly (116) is an off-vehicle device.

14. The vehicle-mounted power supply (100) according to claim 12 or 13, characterized in that: The high voltage DC / low voltage DC (113) comprises a first secondary side conversion circuit (117), a first isolation conversion circuit (118) and a first primary side conversion circuit (119); The high-voltage DC / DC (114) comprises a second secondary-side conversion circuit (120), a second isolation conversion circuit (121) and a second primary-side conversion circuit (122); The high voltage AC / DC (115) includes a power factor correction circuit (123); The AC output assembly (116) includes a switch control circuit (106); A first end of the first secondary conversion circuit (117) is connected to the first battery (101), a second end of the first secondary conversion circuit (117) is connected to a first end of the first isolation conversion circuit (118), and a second end of the first isolation conversion circuit (118) is connected to the first primary conversion circuit (101). The first end of the primary conversion circuit (119) is connected to the first end of the second secondary conversion circuit (120), the second end of the second secondary conversion circuit (120) is connected to the first end of the second isolation conversion circuit (121), the second end of the second isolation conversion circuit (121) is connected to the first end of the second primary conversion circuit (122), the second end of the second primary conversion circuit (122) is connected to the first end of the power factor correction circuit (123), the second end of the power factor correction circuit (123) is connected to the first end of the switch control circuit (106), and the second end of the switch control circuit (106) is suitable for being connected to the second external load.

15. The vehicle-mounted power supply (100) according to any one of claims 11 to 14, characterized in that: The AC / DC conversion device (112) comprises: a high voltage DC / low voltage DC (113), a high voltage AC / DC (115) and an AC output assembly (116) connected in sequence; The high-voltage DC / low-voltage DC (113), the high-voltage AC / DC (115) and the alternating current output assembly (116) are all complete vehicle devices that can be removed from the vehicle.

16. The vehicle-mounted power supply (100) according to claim 15, characterized in that: The high voltage DC / low voltage DC (113) comprises a first secondary side conversion circuit (117), a first isolation conversion circuit (118) and a first primary side conversion circuit (119) which are connected in sequence; The high voltage AC / DC (115) includes a power factor correction circuit (123); The AC output assembly (116) includes a switch control circuit (106); A first end of the first secondary conversion circuit (117) is connected to the first battery (101), a second end of the first secondary conversion circuit (117) is connected to a first end of the first isolation conversion circuit (118), a second end of the first isolation conversion circuit (118) is connected to a first end of the first primary conversion circuit (119), a second end of the first primary conversion circuit (119) is connected to a first end of the power factor correction circuit (123), a second end of the power factor correction circuit (123) is connected to a first end of the switch control circuit (106), and a second end of the switch control circuit (106) is suitable for being connected to the second external load.

17. The vehicle-mounted power supply (100) according to any one of claims 11 to 16, characterized in that: The AC / DC conversion device (112) comprises: a high voltage DC / low voltage DC (113) and a high voltage DC / AC connected to each other; The high voltage DC / low voltage DC (113) is a vehicle-mounted device that can be removed from the vehicle, and the high voltage DC / AC is an off-vehicle device; A first end of the high-voltage DC / low-voltage DC (113) is connected to the first battery (101), a second end of the high-voltage DC / low-voltage DC (113) is connected to a first end of the high-voltage DC / AC, and a second end of the high-voltage DC / AC is connected to the second external load.

18. The vehicle-mounted power supply (100) according to any one of claims 11 to 17, characterized in that: The AC / DC conversion device (112) comprises: a high voltage DC / low voltage DC (113), a high voltage DC / AC and an AC output assembly (116) connected to each other; The high-voltage DC / low-voltage DC (113) is a complete vehicle device that can be removed from the vehicle, and the high-voltage DC / AC and the AC output assembly (116) are both off-vehicle devices; A first end of the high-voltage DC / low-voltage DC (113) is connected to the first battery (101), a second end of the high-voltage DC / low-voltage DC (113) is connected to a first end of the high-voltage DC / AC, a second end of the high-voltage DC / AC is connected to a first end of the AC output assembly (116), and a second end of the AC output assembly (116) is connected to the second off-vehicle load.

19. The vehicle-mounted power supply (100) according to any one of claims 11 to 18, characterized in that: The AC / DC conversion device (112) is an off-vehicle DC conversion device (112), and the off-vehicle DC conversion device (112) includes a high-voltage DC / AC or a low-voltage DC / AC; A first end of the high-voltage DC / AC is connected to the first battery (101), and a second end of the high-voltage DC / AC is connected to the second external load; A first end of the low-voltage DC / AC is connected to the first battery (101), and a second end of the low-voltage DC / AC is connected to the second external load.

20. The vehicle-mounted power supply (100) according to any one of claims 11 to 19, characterized in that: The first battery (101) is at least one of a storage battery, an iron battery and a super capacitor.

21. The vehicle-mounted power supply (100) according to any one of claims 11 to 20, characterized in that: The vehicle-mounted power supply (100) further comprises a storage compartment (108), wherein the first battery (101) and the AC / DC conversion device (112) are accommodated in the storage compartment (108).

22. The vehicle-mounted power supply (100) according to any one of claims 11 to 21, characterized in that: The storage bin (108) is provided with a locking mechanism (109), and the locking mechanism (109) is used to open when the electrical connection between the vehicle-mounted power supply (100) and the vehicle is disconnected, so as to dismantle the vehicle-mounted power supply (100).

23. The vehicle-mounted power supply (100) according to claim 21, characterized in that: The storage bin (108) is provided with an alternating current output interface, and the second end of the AC / DC conversion device (112) is connected to the alternating current output interface to output alternating current.

24. The vehicle-mounted power supply (100) according to claim 21, characterized in that: The storage bin (108) is also provided with an electrical connection interface (111), the first battery (101) is connected to the electrical connection interface (111), and the first battery (101) is suitable for being electrically connected to the vehicle through the electrical connection interface (111).

25. A battery system (200) for a vehicle, characterized in that: include: Power battery assembly (201); and The on-vehicle power supply (100) according to any one of claims 1 to 24.

26. The battery system (200) according to claim 25, characterized in that: Also includes: a second voltage conversion device (206), a first end of the second voltage conversion device (206) being connected to the power battery assembly (201) and being used for converting the voltage output by the power battery assembly (201); The vehicle-mounted power supply (100) is connected to the second end of the second voltage conversion device (206).

27. The battery system (200) according to claim 26, characterized in that: The second voltage conversion device (206) comprises: A high voltage DC / low voltage DC (113), wherein the high voltage DC / low voltage DC (113) comprises a first primary side conversion circuit (119), a first isolation conversion circuit (118) and a first secondary side conversion circuit (117); The first end of the first primary conversion circuit (119) is connected to the power battery assembly (201), the second end of the first primary conversion circuit (119) is connected to the first end of the first isolation conversion circuit (118), the second end of the first isolation conversion circuit (118) is connected to the first end of the first secondary conversion circuit (117), and the second end of the first secondary conversion circuit (117) is connected to the vehicle power supply (100).

28. The battery system (200) according to claim 26 or 27, characterized in that: The battery system (200) further includes: an AC / DC conversion device (112), wherein a first end of the AC / DC conversion device (112) is connected to the power battery assembly (201), and a second end of the AC / DC conversion device (112) is connected to an AC power load; The AC / DC conversion device (112) comprises: a high-voltage DC / DC (114), a high-voltage AC / DC (115) and an AC output assembly (116) connected in sequence.

29. The battery system (200) according to claim 28, characterized in that: The high-voltage DC / DC (114) comprises a second secondary-side conversion circuit (120), a second isolation conversion circuit (121) and a second primary-side conversion circuit (122); The high voltage AC / DC (115) includes a power factor correction circuit (123); The AC output assembly (116) includes a switch control circuit (106); A first end of the second secondary conversion circuit (120) is connected to the power battery assembly (201), a second end of the second secondary conversion circuit (120) is connected to a first end of the second isolation conversion circuit (121), a second end of the second isolation conversion circuit (121) is connected to a first end of the second primary conversion circuit (122), a second end of the second primary conversion circuit (122) is connected to a first end of the power factor correction circuit (123), a second end of the power factor correction circuit (123) is connected to a first end of the switch control circuit (106), and the switch control circuit (106) is connected to the AC power load.

30. The battery system (200) according to any one of claims 26 to 29, characterized in that: The battery system (200) further includes: A second battery (207), wherein a first end of the second battery (207) is connected to the second voltage conversion device (206), and a second end of the second battery (207) is suitable for connecting to a non-power load of the vehicle, and the second battery (207) is used to supply power to the non-power load of the vehicle when the vehicle-mounted power supply (100) is disassembled.

31. The battery system (200) according to any one of claims 26 to 30, characterized in that: The battery system (200) further includes: An auxiliary DC source (202), wherein a first end of the auxiliary DC source (202) is connected to the power battery assembly (201) via a switch control circuit (106), and a second end of the auxiliary DC source (202) is connected to a non-power load of the vehicle. When the on-board power supply (100) is disassembled, the auxiliary DC source (202) is used to supply power to the non-power load of the vehicle.

32. The battery system (200) according to claim 31, characterized in that: The auxiliary source DC (202) comprises: a third primary conversion circuit (203), a third isolation conversion circuit (204) and a third secondary conversion circuit (205); The first end of the third primary conversion circuit (203) is connected to the power battery assembly (201), the second end of the third primary conversion circuit (203) is connected to the first end of the third isolation conversion circuit (204), the second end of the third isolation conversion circuit is connected to the first end of the third secondary conversion circuit (205), and the second end of the third secondary conversion circuit (205) is connected to the non-power load of the vehicle.

33. The battery system (200) according to claim 25, characterized in that: The power battery assembly (201) is connected to the first battery (101) via a high voltage DC / low voltage DC (113).

34. The battery system (200) according to claim 33, characterized in that: The battery system (200) further includes: A second battery (207), wherein a first end of the second battery (207) is connected to the AC / DC conversion device (112), and a second end of the second battery (207) is suitable for connecting to a non-power load of the vehicle, and the second battery (207) is used to supply power to the non-power load of the vehicle when the vehicle-mounted power supply (100) is disassembled.

35. The battery system (200) according to claim 33 or 34, characterized in that: The battery system (200) further includes: An auxiliary DC source (202), wherein a first end of the auxiliary DC source (202) is connected to the power battery assembly (201) via a switch control circuit (106), and a second end of the auxiliary DC source (202) is connected to a non-power load of the vehicle. When the on-board power supply (100) is disassembled, the auxiliary DC source (202) is used to supply power to the non-power load of the vehicle.

36. The battery system (200) according to claim 35, characterized in that: The auxiliary source DC (202) comprises: a third primary conversion circuit (203), a third isolation conversion circuit (204) and a third secondary conversion circuit (205); The first end of the third primary conversion circuit (203) is connected to the power battery assembly (201), the second end of the third primary conversion circuit (203) is connected to the first end of the third isolation conversion circuit (204), the second end of the third isolation conversion circuit is connected to the first end of the third secondary conversion circuit (205), and the second end of the third secondary conversion circuit (205) is connected to the non-power load of the vehicle.

37. A vehicle, characterized in that: include: The battery system (200) as claimed in any one of claims 25 to 36.

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