Power supply device, battery system of vehicle, and vehicle

Abstract

A vehicle. The vehicle has a battery system (200) having a power supply device (100). The power supply device (100) comprises a first battery (101) and an electric energy conversion device (102), wherein the first battery (101) is an external battery; the external battery is used for supplying power to a first external load; the electric energy conversion device (102) is at least partially detachably connected to the vehicle; and 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 being connected to an external load. In the power supply device (100), the electric energy conversion device (102) is used for converting electric energy of the external battery and then supplying power to the external load.

Description

Power supply device, vehicle battery system, and vehicle

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese Patent Application No. 202322945778.7, filed on October 31, 2023, entitled “Power Supply Device, 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. 202322951938.9, filed on October 31, 2023, entitled “Power Supply Device, Battery System for Vehicle, 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 a power supply device, a battery system for a vehicle, and a 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] Application Contents

[0007] One purpose of the present application is to provide a new technical solution for a power supply device.

[0008] According to a first aspect of the present application, there is provided a power supply device, comprising:

[0009] a first battery, the first battery being an off-vehicle battery, the off-vehicle battery being used to supply power to an off-vehicle load; and

[0010] an electric energy conversion device, at least a portion of which is detachably connected to the vehicle, a first end of the electric energy conversion device being connected to the first battery, and a second end of the electric energy conversion device being adapted to be connected to the external load;

[0011] In the power supply device, the electric energy conversion device is used to convert the electric energy of the external battery to supply power to the external load.

[0012] Optionally, the external load includes a first external load, the electric energy conversion device includes a vehicle voltage conversion device, the vehicle voltage conversion device is at least partially detachably connected to the vehicle, a first end of the vehicle voltage conversion device is connected to the first battery, and a second end of the vehicle voltage conversion device is suitable for connecting to the first external load.

[0013] In the power supply device, the vehicle voltage conversion device is used to convert the voltage of the external battery and output direct current to the first external load.

[0014] Optionally, the vehicle voltage conversion device is a vehicle low-voltage output assembly, and the vehicle low-voltage output assembly is a vehicle device that can be removed from the vehicle;

[0015] In the power supply device, the first end of the vehicle low-voltage output assembly is connected to the first battery, and the second end of the vehicle low-voltage output assembly is suitable for detachable connection to a non-power load of the vehicle.

[0016] Optionally, the vehicle low-voltage output assembly includes:

[0017] a switch control circuit, a first terminal of the switch control circuit being connected to the first battery; and

[0018] 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 connected to the first external vehicle load.

[0019] Optionally, the vehicle voltage conversion device includes interconnected high-voltage DC / low-voltage DC and low-voltage output assemblies;

[0020] At least one of the high-voltage DC / low-voltage DC and the low-voltage output assembly is a complete vehicle device that can be removed from the vehicle.

[0021] Optionally, 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;

[0022] The low-voltage output assembly includes a switch control circuit and a voltage conversion circuit;

[0023] The first end of the first primary conversion circuit is connected to the first battery, 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, the second end of the first secondary conversion circuit is connected to the first end of the switch control circuit, the second end of the switch control circuit is connected to the first end of the voltage conversion circuit, and the second end of the voltage conversion circuit is connected to the first external vehicle load.

[0024] Optionally, the off-vehicle load includes a second off-vehicle load, the electric energy conversion device (102) includes an AC / DC conversion device, a first end of the AC / DC conversion device is connected to the off-vehicle battery, and a second end of the AC / DC conversion device is suitable for connecting to the second off-vehicle load;

[0025] At least a portion of the AC / DC converter is detachably connected to the vehicle. In the power supply device, the AC / DC converter is used to convert the DC power output by the external battery into AC power for the second external load.

[0026] Optionally, the AC / DC conversion device is a vehicle AC / DC conversion device, and the AC / DC conversion device includes: a high-voltage DC / DC, a high-voltage AC / DC, and an AC output assembly connected in sequence;

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

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

[0029] The high-voltage DC / DC and the high-voltage AC / DC are both complete vehicle devices that can be removed from the vehicle, and the AC output assembly is an off-vehicle device.

[0030] Optionally, the high-voltage DC / DC includes a first secondary-side conversion circuit, a first isolation conversion circuit, and a first primary-side conversion circuit;

[0031] The high voltage AC / DC includes a power factor correction circuit;

[0032] The AC output assembly includes a switch control circuit;

[0033] The first end of the first secondary conversion circuit is connected to the external battery, the second end of the first secondary conversion circuit is connected to the first end of the first isolation conversion circuit, the second end of the first isolation conversion circuit is connected to the first end of the first primary conversion circuit, the second end of the first primary conversion circuit is connected to the first end of the power factor correction circuit, the second end of the power factor correction circuit is connected to the first end of the switch control circuit, and the second end of the switch control circuit is connected to the second external load.

[0034] Optionally, the AC / DC conversion device is a whole vehicle AC / DC conversion device, and the whole vehicle AC / DC conversion device includes: interconnected high-voltage AC / DC and AC output assembly; the high-voltage AC / DC and the AC output assembly are both whole vehicle devices that can be removed from the vehicle.

[0035] Optionally, the vehicle AC / DC conversion device includes: interconnected high-voltage AC / DC and AC output assemblies;

[0036] The high-voltage AC / DC is a complete vehicle device that can be removed from the vehicle, and the AC output assembly is an off-vehicle device.

[0037] Optionally, the high voltage AC / DC includes a power factor correction circuit;

[0038] The AC output assembly includes a switch control circuit;

[0039] The first end of the power factor correction circuit is connected to the external battery, the second end of the power factor correction circuit is connected to the first end of the switch control circuit, and the second end of the switch control circuit is connected to the second external load.

[0040] Optionally, the whole vehicle AC / DC conversion device is a whole vehicle AC / DC conversion device, and the whole vehicle AC / DC conversion device includes: high-voltage DC / low-voltage DC, high-voltage DC / DC, high-voltage AC / DC and AC output assembly connected in sequence; the high-voltage DC / low-voltage DC, the high-voltage DC / DC, the high-voltage AC / DC and the AC output assembly are all whole vehicle devices that can be removed from the vehicle.

[0041] 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;

[0042] The high-voltage DC / DC includes a second secondary-side conversion circuit, a second isolation conversion circuit, and a second primary-side conversion circuit;

[0043] The high voltage AC / DC includes a power factor correction circuit;

[0044] The AC output assembly includes a switch control circuit;

[0045] The first end of the first secondary conversion circuit is connected to the external battery, the second end of the first secondary conversion circuit is connected to the first end of the first isolation conversion circuit, the second end of the first isolation conversion circuit is connected to the first end of the first primary conversion circuit, the second end of the first primary conversion circuit is connected to the first end of the second secondary conversion circuit, the second end of the second secondary conversion circuit is connected to the first end of the second isolation conversion circuit, the second end of the second isolation conversion circuit is connected to the first end of the second primary conversion circuit, the second end of the second primary conversion circuit is connected to the first end of the power factor correction circuit, the second end of the power factor correction circuit is connected to the first end of the switch control circuit, and the second end of the switch control circuit is connected to the second external load.

[0046] According to a second aspect of the present application, a battery system for a vehicle is provided, comprising:

[0047] A first battery; the first battery is a power battery of the vehicle or a non-power battery of the vehicle; and

[0048] And the electric energy conversion device in the power supply device as described in any one of the first aspects; the first end of the electric energy conversion device is connected to the first battery, and the second end of the electric energy conversion device is connected to the non-power load or AC power load of the vehicle.

[0049] Optionally, the electric energy conversion device includes: a vehicle voltage conversion device, a first end of the vehicle voltage conversion device is connected to the first battery, and a second end of the vehicle voltage conversion device is connected to a non-power load of the vehicle.

[0050] Optionally, the electric energy conversion device includes:

[0051] An AC-DC converter device, wherein a first end of the AC-DC converter device is connected to the first battery, and a second end of the AC-DC converter device is connected to an AC power load of the vehicle, and the AC-DC converter device is used to convert the DC power output by the first battery into AC power for the AC power load.

[0052] Optionally, the battery system further includes:

[0053] An auxiliary DC source, wherein a first end of the auxiliary DC source is connected to the first 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 vehicle voltage conversion device is disassembled, the auxiliary DC source is used to power the non-power load of the vehicle.

[0054] Optionally, the auxiliary source DC includes: a third primary side conversion circuit, a third isolation conversion circuit, and a third secondary side conversion circuit;

[0055] 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.

[0056] Optionally, the battery system further includes:

[0057] A voltage conversion device, wherein a first end of the voltage conversion device is connected to the first battery, and a second end of the voltage conversion device is suitable for connecting to a non-power load of the vehicle, and the voltage conversion device is used to convert the voltage of the first battery and output direct current to the non-power load of the vehicle.

[0058] According to a third aspect of the present application, a vehicle is provided, comprising a battery system as described in any one of the second aspects.

[0059] The vehicle-mounted power supply provided by the present application is characterized in that the power conversion device (102) in the vehicle's battery system can be removed from the vehicle and constitutes a mobile power supply with an external battery. The power conversion device is suitable for connecting to an 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 and improving the owner's vehicle-using experience.

[0060] The vehicle-mounted power supply provided in this application is a voltage conversion device in the vehicle's battery system that can be removed from the vehicle to form a mobile power supply with an external battery. The voltage conversion device can convert the voltage of the external battery and output direct current to a first external load, so that the vehicle's battery system can be fully utilized when it is idle, while meeting the owner's external AC power needs and improving the owner's car-using experience.

[0061] The vehicle-mounted power supply provided in this application is an AC-DC conversion device in the vehicle's battery system that can be removed from the vehicle and form a mobile power supply with the external battery. The AC-DC conversion device can convert the DC power of the external battery into AC power for 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 AC power needs and improving the owner's car-using experience.

[0062] 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

[0063] 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.

[0064] FIG1 shows a structural block diagram of a power supply device according to an embodiment of the present application.

[0065] FIG2 shows a structural block diagram of a power supply device according to an embodiment of the present application.

[0066] FIG3 shows a structural block diagram of a power supply device according to an embodiment of the present application.

[0067] FIG4 shows a schematic diagram of the battery system after the vehicle voltage conversion device is removed from the vehicle battery system.

[0068] FIG5 shows a structural block diagram of a power supply device according to an embodiment of the present application.

[0069] FIG6 shows a schematic diagram of the battery system after the high voltage DC / low voltage DC and low voltage output assembly are removed from the battery system of the vehicle.

[0070] FIG7 shows a schematic diagram of a high voltage DC / low voltage DC circuit according to an embodiment of the present application.

[0071] FIG8 shows a structural block diagram of a power supply device according to an embodiment of the present application.

[0072] FIG9 shows a structural block diagram of a power supply device according to an embodiment of the present application.

[0073] FIG10 shows a schematic diagram of a battery system after the AC / DC converter is removed from the battery system of a vehicle.

[0074] FIG11 shows a circuit diagram of a high-voltage DC / DC and a high-voltage AC / DC according to an embodiment of the present application.

[0075] FIG12 shows a structural block diagram of a power supply device according to an embodiment of the present application.

[0076] FIG13 is a schematic diagram showing a battery system after a portion of the AC / DC converter is removed from the battery system of a vehicle.

[0077] FIG14 shows a structural block diagram of a power supply device according to an embodiment of the present application.

[0078] FIG15 is a schematic diagram showing a battery system after a portion of the AC / DC converter is removed from the battery system of a vehicle.

[0079] FIG16 shows a structural block diagram of a power supply device according to an embodiment of the present application.

[0080] FIG17 is a schematic diagram showing a battery system after a portion of the AC / DC converter is removed from the battery system of a vehicle.

[0081] FIG18 shows a structural block diagram of a power supply device according to an embodiment of the present application.

[0082] FIG19 is a schematic diagram showing a battery system after the AC / DC converter is removed from the battery system of the vehicle.

[0083] FIG20 shows a structural block diagram of a battery system for a vehicle according to an embodiment of the present application.

[0084] FIG21 shows a structural block diagram of a vehicle voltage conversion device according to an embodiment of the present application.

[0085] FIG22 shows a circuit diagram of an auxiliary DC source according to an embodiment of the present application.

[0086] FIG23 shows a structural block diagram of a power supply device according to an embodiment of the present application.

[0087] FIG24 shows a structural block diagram of a power supply device according to an embodiment of the present application.

[0088] FIG25 is a schematic diagram showing a battery system after the AC / DC converter is removed from the battery system of the vehicle.

[0089] FIG26 shows a circuit diagram of a high-voltage DC / DC and a high-voltage AC / DC according to an embodiment of the present application.

[0090] FIG27 shows a structural block diagram of a power supply device according to an embodiment of the present application.

[0091] FIG28 is a schematic diagram showing a battery system after a portion of the AC / DC converter is removed from the battery system of a vehicle.

[0092] FIG29 shows a structural block diagram of a power supply device according to an embodiment of the present application.

[0093] FIG30 is a schematic diagram showing a battery system after a portion of the AC / DC converter is removed from the battery system of a vehicle.

[0094] FIG31 shows a structural block diagram of a power supply device according to an embodiment of the present application.

[0095] FIG32 is a schematic diagram showing a battery system in which a portion of the AC / DC converter is removed from the battery system of a vehicle.

[0096] FIG33 shows a structural block diagram of a power supply device according to an embodiment of the present application.

[0097] FIG34 shows a schematic diagram of the battery system after the AC / DC converter is removed from the battery system of the vehicle.

[0098] FIG35 shows a structural block diagram of a power supply device according to an embodiment of the present application.

[0099] FIG36 shows a structural block diagram of a power supply device according to an embodiment of the present application.

[0100] Figure 37 shows a schematic diagram of the battery system after the vehicle voltage conversion device is removed from the vehicle's battery system.

[0101] FIG38 shows a structural block diagram of a power supply device according to an embodiment of the present application.

[0102] 39 shows a schematic diagram of the battery system after the high voltage DC / low voltage DC and low voltage output assembly are removed from the battery system of the vehicle.

[0103] FIG40 shows a schematic circuit diagram of a high voltage DC / low voltage DC according to an embodiment of the present application.

[0104] Figure 41 shows a structural block diagram of a battery system of a vehicle according to an embodiment of the present application.

[0105] Reference numerals:

[0106] 100-Power supply unit

[0107] 101-First Battery

[0108] 102-Electric energy conversion device

[0109] 103-Vehicle voltage conversion device

[0110] 104-Vehicle low voltage output assembly

[0111] 105-Switch control circuit

[0112] 106-Voltage Conversion Circuit

[0113] 107-High Voltage DC / Low Voltage DC

[0114] 108-Low voltage output assembly

[0115] 109-First primary side conversion circuit

[0116] 110-First isolation conversion circuit

[0117] 111-First secondary side conversion circuit

[0118] 112-AC / DC conversion device

[0119] 113-High Voltage DC / DC

[0120] 114-High Voltage AC / DC

[0121] 115-AC output assembly

[0122] 116-Power Factor Correction Circuit

[0123] 117-Second secondary side conversion circuit

[0124] 118-Second isolation conversion circuit

[0125] 119-Second primary side conversion circuit

[0126] 200-battery system

[0127] 201-Auxiliary Source DC

[0128] 202-Third primary side conversion circuit

[0129] 203-Third isolation conversion circuit

[0130] 204-Third secondary side conversion circuit

[0131] 205-Power battery assembly DETAILED DESCRIPTION

[0132] Various exemplary embodiments of the present specification will now be described in detail with reference to the accompanying drawings.

[0133] 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.

[0134] 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.

[0135] <Power Supply Device Embodiment>

[0136] 1 , an embodiment of the present application provides a power supply device 100 , which includes a first battery 101 and an electric energy conversion device 102 .

[0137] Example 1

[0138] An embodiment of the present application provides a power supply device 100. As shown in FIG1 , the power supply device 100 of this embodiment includes a first battery 101 and an electric energy conversion device.

[0139] The first battery 101 is an external battery for supplying power to external loads.

[0140] At least a portion of the electric energy conversion device 102 is detachably connected to the vehicle, 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 an external load; in the power supply device 100, the electric energy conversion device 102 is used to convert the electric energy of the external battery to supply power to the external load.

[0141] The external battery can be a high-voltage battery, such as a 220V battery. The external battery can also be a low-voltage battery, such as a 24V battery or a 12V battery.

[0142] The vehicle-mounted power supply provided in this embodiment is such that the power conversion device 102 in the vehicle's battery system 200 can be removed from the vehicle and constitutes a mobile power source together with the external battery. The power conversion device 102 is suitable for connecting to external loads, 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 needs and improving the owner's vehicle-using experience.

[0143] Example 2

[0144] The external load includes a first external load. The power conversion device 102 includes a vehicle voltage conversion device 103, which is at least partially detachably connected to the vehicle. A first end of the vehicle voltage conversion device 103 is connected to the external battery, and a second end of the vehicle voltage conversion device 103 is suitable for connecting to the first external load. In the power supply device 100, the vehicle voltage conversion device 103 is used to convert the voltage of the external battery and output DC power to the first external load.

[0145] Optionally, the first external load is a DC power load.

[0146] In the vehicle-mounted power supply provided in this embodiment, the voltage conversion device in the vehicle's battery system 200 can be removed from the vehicle and form a mobile power supply with the external battery. The voltage conversion device can convert the voltage of the external battery and output direct current to the first 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.

[0147] Example 3

[0148] In one embodiment, the vehicle voltage conversion device 103 is a vehicle low-voltage output assembly 104. The vehicle low-voltage output assembly 104 is a vehicle device that can be removed from the vehicle.

[0149] In the power supply device 100, the first end of the vehicle low-voltage output assembly 104 is connected to the first battery 101, and the second end of the vehicle low-voltage output assembly 104 is suitable for detachable connection to the vehicle non-power load. The structural block diagram of the power supply device 100 of this embodiment is shown in FIG3.

[0150] The external battery of the vehicle is a low-voltage battery, for example, a 12V battery or a 24V battery.

[0151] The vehicle low-voltage output assembly 104 can step down the voltage of the external battery and output direct current to the first external load, or can step up the voltage of the external battery and output direct current to the first external load.

[0152] For example, the voltage of the external battery is 12V, and the vehicle low-voltage output assembly 104 can convert the 12V voltage of the external battery into 5V to supply power to a load that consumes 5V.

[0153] For another example, the voltage of the external battery of the vehicle is 12V, and the vehicle low-voltage output assembly 104 can convert the 12V voltage of the non-power battery into 24V to supply power to the load with a power voltage of 24V.

[0154] 4 shows a schematic diagram of the battery system 200 after the vehicle voltage conversion device 103 is removed from the vehicle battery system 200. The position of the dotted box 1 is the position of the vehicle voltage conversion device 103 in the battery system 200 of the vehicle.

[0155] In the power supply device 100 provided in this embodiment, the vehicle low-voltage output assembly 104 includes a switch control circuit 105 and a voltage conversion circuit 106. A first terminal of the switch control circuit 105 is connected to an external battery. A first terminal of the voltage conversion circuit 106 is connected to a second terminal of the switch control circuit 105, and a second terminal of the voltage conversion circuit 106 is adapted to be connected to a first external load.

[0156] The vehicle low-voltage output assembly 104 includes a control switch and a voltage conversion circuit 106 .

[0157] The vehicle low-voltage output assembly 104 includes multiple switch control circuits 105 and multiple voltage conversion circuits 106. Each switch control circuit 105 and a corresponding voltage conversion circuit 106 form a branch circuit. The first end of each branch circuit is connected to the external battery, and the second end of each branch circuit is connected to the corresponding first external load. In this way, the vehicle low-voltage output assembly 104 is configured to convert the voltage of the external battery into different power voltages, thereby supplying power to loads with different power voltages.

[0158] In the vehicle-mounted power supply provided in this embodiment, the voltage conversion device in the vehicle's battery system 200 can be removed from the vehicle and form a mobile power supply with the external battery. The voltage conversion device can convert the voltage of the external battery and output direct current to the first 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.

[0159] Example 4

[0160] In one embodiment, referring to Figure 21 , vehicle voltage conversion device 103 includes interconnected high-voltage DC / low-voltage DC 107 and low-voltage output assembly 108. At least one of high-voltage DC / low-voltage DC 107 and low-voltage output assembly 108 is a fully removable vehicle device. A block diagram of the power supply device 100 of this embodiment is shown in Figure 5 .

[0161] The external battery is a high-voltage battery, for example, a 220V battery.

[0162] Figure 6 shows a schematic diagram of the vehicle battery system 200 after the high-voltage DC / low-voltage DC 107 and the low-voltage output assembly 108 are removed from the vehicle battery system 200. The dashed box 1 indicates the location of the high-voltage DC / low-voltage DC 107 in the vehicle battery system 200. The dashed box 2 indicates the location of the low-voltage output assembly 108 in the vehicle battery system 200.

[0163] In the power supply device 100, a first end of the high-voltage DC / low-voltage DC 107 is connected to an external battery, a second end of the high-voltage DC / low-voltage DC 107 is connected to a first end of a low-voltage output assembly 108, and a second end of the low-voltage output assembly 108 is connected to a first external load.

[0164] 7 and 21 , the high-voltage DC / low-voltage DC 107 includes: a first primary-side conversion circuit 109 , a first isolation conversion circuit 110 , and a first secondary-side conversion circuit 111 .

[0165] 21 , the low-voltage output assembly 108 includes a switch control circuit 105 and a voltage conversion circuit 106 .

[0166] The first end of the first primary conversion circuit 109 is connected to the external battery, the second end of the first primary conversion circuit 109 is connected to the first end of the first isolation conversion circuit 110, the second end of the first isolation conversion circuit 110 is connected to the first end of the first secondary conversion circuit 111, the second end of the first secondary conversion circuit 111 is connected to the first end of the switch control circuit 105, the second end of the switch control circuit 105 is connected to the first end of the voltage conversion circuit 106, and the second end of the voltage conversion circuit 106 is connected to the first external load.

[0167] The first primary conversion circuit 109 is used to receive direct current (DC) from the power battery, convert the DC power into alternating current (AC), and transmit the resultant power to the primary winding of the first isolation conversion circuit 110. The first isolation conversion circuit 110 is used to receive AC power having a first voltage from the first primary conversion circuit 109 through 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 111. The first secondary conversion circuit 111 is used to receive AC power from the secondary winding, convert the AC power into DC power, and transmit the resultant power to the switch control circuit 105. The DC power from the first secondary circuit is transmitted to the voltage conversion circuit 106 through the switch control circuit 105. The voltage conversion circuit 106 is used to convert the voltage of the received DC power and output the resultant power to the first external load.

[0168] The low voltage output assembly 108 includes a control switch and a voltage conversion circuit 106 .

[0169] The low-voltage output assembly 108 includes multiple switch control circuits 105 and multiple voltage conversion circuits 106. Each switch control circuit 105 and its corresponding voltage conversion circuit 106 form a branch circuit. The first end of each branch circuit is connected to the high-voltage DC / low-voltage DC circuit 107, and the second end of each branch circuit is connected to the corresponding first external load. This allows the power battery voltage to be converted to different voltages, providing power to loads with different voltage requirements.

[0170] In the vehicle-mounted power supply provided in this embodiment, the voltage conversion device in the vehicle's battery system 200 can be removed from the vehicle and form a mobile power supply with the external battery. The voltage conversion device can convert the voltage of the external battery and output direct current to the first 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.

[0171] Example 5

[0172] In one embodiment, power supply device 100 includes an off-vehicle battery, a vehicle voltage conversion device 103, and an AC / DC converter 112. AC / DC converter 112 is at least partially detachably connected to the vehicle. Vehicle voltage conversion device 103 can be described in any of the above embodiments. For a block diagram of the power supply device 100 in this embodiment, see Figure 8.

[0173] A first end of the AC / DC converter 112 is connected to an external battery, and a second end of the AC / DC converter 112 is suitable for connecting to a second external load.

[0174] In the power supply device 100 , the AC / DC converter 112 is used to convert the DC power outputted by the external battery into AC power for supplying to the second external load.

[0175] Example 6

[0176] In one embodiment, the power supply device 100 includes an off-vehicle battery, a vehicle voltage conversion device 103, and an AC / DC converter 112. The AC / DC converter 112 is at least partially detachably connected to the vehicle. The vehicle voltage conversion device 103 may be described in any of the above embodiments.

[0177] The AC / DC converter 112 is a vehicle AC / DC converter 112. The vehicle AC / DC converter 112 includes a high-voltage DC / DC 113, a high-voltage AC / DC 114, and an AC output assembly 115 connected in sequence. For a structural block diagram of the power supply device 100 of this embodiment, see FIG9 .

[0178] In the power supply device 100 , a first end of the vehicle AC / DC converter 112 is connected to the outside of the vehicle, and a second end of the vehicle AC / DC converter 112 is suitable for connecting to a second external load.

[0179] Figure 10 shows a schematic diagram of the battery system 200 after the AC / DC converter 112 is removed from the vehicle's battery system 200. The dashed box 1 indicates the location of the high-voltage DC / DC 113 within the vehicle's battery system 200. The dashed box 2 indicates the location of the high-voltage AC / DC 114 within the vehicle's battery system 200. The dashed box 3 indicates the location of the AC power output assembly 115 within the vehicle's battery system 200.

[0180] Referring to Figure 9, in the power supply device 100, the first end of the high-voltage DC / DC 113 is connected to the external battery, the second end of the high-voltage DC / DC 113 is connected to the first end of the high-voltage AC / DC 114, the second end of the high-voltage AC / DC 114 is connected to the first end of the AC output assembly 115, and the second end of the AC output assembly 115 is connected to the second external load.

[0181] 11 , the high-voltage DC / DC 113 includes a second primary conversion circuit 119 , a second isolation conversion circuit 118 , and a second secondary conversion circuit 117 . The high-voltage AC / DC 114 includes a power factor correction circuit 116 . The AC output assembly 115 includes a switch control circuit 105 .

[0182] The first end of the second secondary conversion circuit 117 is connected to the external battery, the second end of the second secondary conversion circuit 117 is connected to the first end of the second isolation conversion circuit 118, the second end of the second isolation conversion circuit 118 is connected to the first end of the second primary conversion circuit 119, the second end of the second primary conversion circuit 119 is connected to the first end of the power factor correction circuit 116, the second end of the power factor correction circuit 116 is connected to the first end of the switch control circuit 105, and the second end of the switch control circuit 105 is suitable for connection to the second external load.

[0183] The second secondary conversion circuit 117 is configured to receive direct current (DC) power from an external battery, convert the DC power into alternating current (AC), and transmit the resultant power to the secondary winding of the second isolated conversion circuit 118. The second isolated conversion circuit 118 is configured to receive AC power having a first voltage from the second secondary conversion circuit 117 via its secondary winding, generate AC power having a second voltage on its primary winding, and transmit the resultant power to the second primary conversion circuit 119. The second 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 116. The power factor correction circuit 116 is configured to convert the DC power received from the second primary conversion circuit 119 into AC power. The AC power from the power factor correction circuit 116 is transmitted to a second external load via the switch control circuit 105 of the AC power output assembly 115.

[0184] The external battery is a high-voltage battery, for example, a 220V battery.

[0185] Example 7

[0186] In one embodiment, the power supply device 100 includes an off-vehicle battery, a vehicle voltage conversion device 103, and an AC / DC converter 112. The AC / DC converter 112 is at least partially detachably connected to the vehicle. The vehicle voltage conversion device 103 may be described in any of the above embodiments.

[0187] AC / DC converter 112 includes a high-voltage DC / DC converter 113, a high-voltage AC / DC converter 114, and an AC power output assembly 115, which are sequentially connected. High-voltage DC / DC 113 and high-voltage AC / DC 114 are fully removable components, while AC power output assembly 115 is an external component. See Figure 12 for a block diagram of the power supply device 100 of this embodiment.

[0188] Figure 13 shows a schematic diagram of the battery system 200 after the AC / DC converter 112 is partially removed from the vehicle's battery system 200. The dashed box 1 indicates the location of the high-voltage DC / DC converter 113 within the vehicle's battery system 200. The dashed box 2 indicates the location of the high-voltage AC / DC converter 114 within the vehicle's battery system 200.

[0189] Referring to Figure 12, in the power supply device 100, the first end of the high-voltage DC / DC 113 is connected to the external battery, the second end of the high-voltage DC / DC 113 is connected to the first end of the high-voltage AC / DC 114, the second end of the high-voltage AC / DC 114 is connected to the first end of the AC output assembly 115, and the second end of the AC output assembly 115 is connected to the second external load.

[0190] 11 , the high-voltage DC / DC 113 includes a second primary conversion circuit 119 , a second isolation conversion circuit 118 , and a second secondary conversion circuit 117 . The high-voltage AC / DC 114 includes a power factor correction circuit 116 . The AC output assembly 115 includes a switch control circuit 105 .

[0191] The first end of the second secondary conversion circuit 117 is connected to the external battery, the second end of the second secondary conversion circuit 117 is connected to the first end of the second isolation conversion circuit 118, the second end of the second isolation conversion circuit 118 is connected to the first end of the second primary conversion circuit 119, the second end of the second primary conversion circuit 119 is connected to the first end of the power factor correction circuit 116, the second end of the power factor correction circuit 116 is connected to the first end of the switch control circuit 105, and the second end of the switch control circuit 105 is suitable for connection to the second external load.

[0192] The second secondary conversion circuit 117 is configured to receive direct current (DC) power from an external battery, convert the DC power into alternating current (AC), and transmit the resultant power to the secondary winding of the second isolated conversion circuit 118. The second isolated conversion circuit 118 is configured to receive AC power having a first voltage from the second secondary conversion circuit 117 via its secondary winding, generate AC power having a second voltage on its primary winding, and transmit the resultant power to the second primary conversion circuit 119. The second 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 116. The power factor correction circuit 116 is configured to convert the DC power received from the second primary conversion circuit 119 into AC power. The AC power from the power factor correction circuit 116 is transmitted to a second external load via the switch control circuit 105 of the AC power output assembly 115.

[0193] The external battery is a high-voltage battery, for example, a 220V battery.

[0194] Example 8

[0195] In one embodiment, the power supply device 100 includes an off-vehicle battery, a vehicle voltage conversion device 103, and an AC / DC converter 112. The AC / DC converter 112 is at least partially detachably connected to the vehicle. The vehicle voltage conversion device 103 may be described in any of the above embodiments.

[0196] The AC / DC converter 112 includes a high-voltage AC / DC converter 114 and an AC output assembly 115, which are interconnected. Both the high-voltage AC / DC converter 114 and the AC output assembly 115 are fully removable components. For a block diagram of the power supply device 100 of this embodiment, see Figure 14.

[0197] Figure 15 shows a schematic diagram of the battery system 200 after the AC / DC converter 112 is partially removed from the vehicle's battery system 200. The dashed box 1 indicates the location of the high-voltage AC / DC 114 within the vehicle's battery system 200. The dashed box 2 indicates the location of the AC output assembly 115 within the vehicle's battery system 200.

[0198] 14 , in the power supply device 100 , a first end of the high-voltage AC / DC 114 is connected to an external battery, a second end of the high-voltage AC / DC 114 is connected to a first end of an AC output assembly 115 , and a second end of the AC output assembly 115 is connected to a second external load.

[0199] The high voltage AC / DC 114 includes a power factor correction circuit 116. The AC output assembly 115 includes a switch control circuit 105. The circuit diagram of the high voltage AC / DC 114 can be seen in FIG11 .

[0200] The power factor correction circuit 116 is used to convert the DC power received from the off-vehicle battery into AC power. The AC power from the power factor correction circuit 116 is transmitted to the second off-vehicle load via the switch control circuit 105 of the AC power output assembly 115 .

[0201] The external battery is a high-voltage battery, for example, a 220V battery.

[0202] Example 9

[0203] In one embodiment, the power supply device 100 includes an off-vehicle battery, a vehicle voltage conversion device 103, and an AC / DC converter 112. The AC / DC converter 112 is at least partially detachably connected to the vehicle. The vehicle voltage conversion device 103 may be described in any of the above embodiments.

[0204] AC / DC converter 112 includes a high-voltage AC / DC converter 114 and an AC output assembly 115, both interconnected. High-voltage AC / DC 114 is a fully removable, vehicle-mounted unit. AC output assembly 115 is an external device. See Figure 16 for a block diagram of the power supply device 100 of this embodiment.

[0205] 17 shows a schematic diagram of the battery system 200 after a portion of the AC / DC converter 112 is removed from the vehicle's battery system 200. The dotted box 1 indicates the location of the high-voltage AC / DC 114 in the vehicle's battery system 200.

[0206] 16 , in the power supply device 100 , a first end of the high-voltage AC / DC 114 is connected to an external battery, a second end of the high-voltage AC / DC 114 is connected to a first end of an AC output assembly 115 , and a second end of the AC output assembly 115 is connected to a second external load.

[0207] The high voltage AC / DC 114 includes a power factor correction circuit 116. The AC output assembly 115 includes a switch control circuit 105. The circuit diagram of the high voltage AC / DC 114 can be seen in FIG11 .

[0208] The power factor correction circuit 116 is used to convert the DC power received from the off-vehicle battery into AC power. The AC power from the power factor correction circuit 116 is transmitted to the second off-vehicle load via the switch control circuit 105 of the AC power output assembly 115 .

[0209] The external battery is a high-voltage battery, for example, a 220V battery.

[0210] Example 10

[0211] In one embodiment, the power supply device 100 includes an off-vehicle battery, a vehicle voltage conversion device 103, and an AC / DC converter 112. The AC / DC converter 112 is at least partially detachably connected to the vehicle. The vehicle voltage conversion device 103 may be described in any of the above embodiments.

[0212] The AC / DC converter 112 includes: a high-voltage DC / low-voltage DC 107, a high-voltage DC / DC 113, a high-voltage AC / DC 114, and an AC output assembly 115 connected in sequence. For a structural block diagram of the power supply device 100 of this embodiment, see FIG18 .

[0213] Figure 19 shows a schematic diagram of the battery system 200 after the AC / DC converter 112 has been removed from the vehicle's battery system 200. The dashed box 1 indicates the location of the high-voltage DC / low-voltage DC 107 within the vehicle's battery system 200. The dashed box 2 indicates the location of the high-voltage DC / DC 113 within the vehicle's battery system 200. The dashed box 3 indicates the location of the high-voltage AC / DC 114 within the vehicle's battery system 200. The dashed box 4 indicates the location of the AC output assembly 115 within the vehicle's battery system 200.

[0214] Referring to Figure 18, in the power supply device 100, the first end of the high-voltage DC / low-voltage DC 107 is connected to the external battery, the second end of the high-voltage DC / low-voltage DC 107 is connected to the first end of the high-voltage DC / DC 113, the second end of the high-voltage DC / DC 113 is connected to the first end of the high-voltage AC / DC 114, the second end of the high-voltage AC / DC 114 is connected to the first end of the AC output assembly 115, and the second end of the AC output assembly 115 is connected to the second external load.

[0215] High-voltage DC / low-voltage DC 107 includes a first primary conversion circuit 109, a first isolation conversion circuit 110, and a first secondary conversion circuit 111. High-voltage AC / DC 114 includes a power factor correction circuit 116. AC output assembly 115 includes a switch control circuit 105. See Figure 7 for details.

[0216] The first end of the first secondary conversion circuit 111 is connected to the external battery, the second end of the first secondary conversion circuit 111 is connected to the first end of the first isolation conversion circuit 110, the second end of the first isolation conversion circuit 110 is connected to the first end of the first primary conversion circuit 109, the second end of the first primary conversion circuit 109 is connected to the first end of the second secondary conversion circuit 117, the second end of the second secondary conversion circuit 117 is connected to the first end of the second isolation conversion circuit 118, the second end of the second isolation conversion circuit 118 is connected to the first end of the second primary conversion circuit 119, the second end of the second primary conversion circuit 119 is connected to the first end of the power factor correction circuit 116, the second end of the power factor correction circuit 116 is connected to the first end of the switch control circuit 105, and the second end of the switch control circuit 105 is connected to the second external load.

[0217] The first secondary conversion circuit 111 is configured to receive direct current (DC) from an external battery, convert the DC power into alternating current (AC), and transmit the resultant power to the secondary winding of the first isolation conversion circuit 110. The first isolation conversion circuit 110 is configured to receive AC power having a first voltage from the first secondary conversion circuit 111 via its secondary winding, generate AC power having a second voltage on its primary winding, and transmit the resultant power to the first primary conversion circuit 109. The first primary conversion circuit 109 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 117 of the high-voltage DC / DC converter 113.

[0218] The second secondary conversion circuit 117 is configured to receive direct current (DC) power from the first primary conversion circuit 109, convert the DC power into alternating current (AC), and transmit the resultant power to the secondary winding of the second isolated conversion circuit 118. The second isolated conversion circuit 118 is configured to receive AC power having a third voltage from the second secondary conversion circuit 117 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 119. The second 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 116. The power factor correction circuit 116 is configured to convert the DC power received from the second primary conversion circuit 119 into AC power. The AC power from the power factor correction circuit 116 is transmitted to a second external load via the switch control circuit 105 of the AC power output assembly 115.

[0219] The external battery of the vehicle is a low-voltage battery, for example, a 12V battery or a 24V battery.

[0220] Example 11

[0221] Referring to Figure 23 , the external load includes a second external load. The power conversion device 102 includes an AC / DC converter 112. A first end of the AC / DC converter 112 is connected to an external battery, and a second end of the AC / DC converter 112 is adapted to connect to the second external load. At least a portion of the AC / DC converter 112 is detachably connected to the vehicle. In the power supply device 100, the AC / DC converter 112 is configured to convert DC power output from the external battery into AC power for the second external load.

[0222] Optionally, the second external load is an AC power load.

[0223] The external battery can be a high-voltage battery, such as a 220V battery. The external battery can also be a low-voltage battery, such as a 24V battery or a 12V battery.

[0224] The vehicle-mounted power supply provided in this embodiment is such that the AC / DC converter 112 in the vehicle's battery system 200 can be removed from the vehicle and form a mobile power supply together with the external battery. The AC / DC converter 112 can convert the DC power of the external battery into AC power for a second external load, thereby making full use of the vehicle's battery system 200 when it is idle, while also meeting the vehicle owner's external AC power needs and improving the vehicle owner's driving experience.

[0225] Example 12

[0226] In one embodiment, the power supply device 100 includes an off-vehicle battery and an AC / DC converter 112. At least a portion of the AC / DC converter 112 is detachably connected to the vehicle.

[0227] AC / DC converter 112 is a complete vehicle AC / DC converter 112. It includes a high-voltage DC / DC converter 113, a high-voltage AC / DC converter 114, and an AC output assembly 115, all connected in sequence. These components are all removable from the vehicle. See Figure 24 for a block diagram of the power supply device 100 of this embodiment.

[0228] In the power supply device 100 , a first end of the vehicle AC / DC converter 112 is connected to the outside of the vehicle, and a second end of the vehicle AC / DC converter 112 is suitable for connecting to a second external load.

[0229] Figure 25 shows a schematic diagram of the battery system 200 after the AC / DC converter 112 is removed from the vehicle's battery system 200. The dashed box 1 indicates the location of the high-voltage DC / DC 113 within the vehicle's battery system 200. The dashed box 2 indicates the location of the high-voltage AC / DC 114 within the vehicle's battery system 200. The dashed box 3 indicates the location of the AC output assembly 115 within the vehicle's battery system 200.

[0230] Referring to Figure 24, in the power supply device 100, the first end of the high-voltage DC / DC 113 is connected to the external battery, the second end of the high-voltage DC / DC 113 is connected to the first end of the high-voltage AC / DC 114, the second end of the high-voltage AC / DC 114 is connected to the first end of the AC power output assembly 115, and the second end of the AC power output assembly 115 is connected to the second external load.

[0231] 26 , the high-voltage DC / DC 113 includes a first primary conversion circuit 109 , a first isolation conversion circuit 110 , and a first secondary conversion circuit 111 . The high-voltage AC / DC 114 includes a power factor correction circuit 116 . The AC output assembly 115 includes a switch control circuit 105 .

[0232] The first end of the first secondary conversion circuit 111 is connected to the external battery, the second end of the first secondary conversion circuit 111 is connected to the first end of the first isolation conversion circuit 110, the second end of the first isolation conversion circuit 110 is connected to the first end of the first primary conversion circuit 109, the second end of the first primary conversion circuit 109 is connected to the first end of the power factor correction circuit 116, the second end of the power factor correction circuit 116 is connected to the first end of the switch control circuit 105, and the second end of the switch control circuit 105 is suitable for connection to a second external load.

[0233] The first secondary conversion circuit 111 is configured to receive direct current (DC) power from an external battery, convert the DC power into alternating current (AC) power, and transmit the power to the secondary winding of the first isolated conversion circuit 110. The first isolated conversion circuit 110 is configured to receive AC power having a first voltage from the first secondary conversion circuit 111 via its secondary winding, generate AC power having a second voltage on its primary winding, and transmit the power to the first primary conversion circuit 109. The first primary conversion circuit 109 is configured to receive AC power from the primary winding, convert the AC power into DC power, and transmit the power to the power factor correction circuit 116. The power factor correction circuit 116 is configured to convert the DC power received from the first primary conversion circuit 109 into AC power. The AC power from the power factor correction circuit 116 is transmitted to a second external load via the switch control circuit 105 of the AC power output assembly 115.

[0234] The external battery is a high-voltage battery, for example, a 220V battery.

[0235] The vehicle-mounted power supply provided in this embodiment is such that the AC / DC converter 112 in the vehicle's battery system 200 can be removed from the vehicle and form a mobile power supply together with the external battery. The AC / DC converter 112 can convert the DC power of the external battery into AC power for a second external load, thereby making full use of the vehicle's battery system 200 when it is idle, while also meeting the vehicle owner's external AC power needs and improving the vehicle owner's driving experience.

[0236] Example 13

[0237] In one embodiment, power supply device 100 includes an off-vehicle battery and an AC / DC converter 112. AC / DC converter 112 includes a high-voltage DC / DC 113, a high-voltage AC / DC 114, and an AC output assembly 115, which are sequentially connected. High-voltage DC / DC 113 and AC / DC 114 are fully removable components, while AC output assembly 115 is an off-vehicle component. See Figure 27 for a block diagram of the power supply device 100 in this embodiment.

[0238] Figure 28 shows a schematic diagram of the battery system 200 after the AC / DC converter 112 is partially removed from the vehicle's battery system 200. The dashed box 1 indicates the location of the high-voltage DC / DC 113 within the vehicle's battery system 200. The dashed box 2 indicates the location of the high-voltage AC / DC 114 within the vehicle's battery system 200.

[0239] Referring to Figure 27, in the power supply device 100, the first end of the high-voltage DC / DC 113 is connected to the external battery, the second end of the high-voltage DC / DC 113 is connected to the first end of the high-voltage AC / DC 114, the second end of the high-voltage AC / DC 114 is connected to the first end of the AC power output assembly 115, and the second end of the AC power output assembly 115 is connected to the second external load.

[0240] 26 , the high-voltage DC / DC 113 includes a first primary conversion circuit 109 , a first isolation conversion circuit 110 , and a first secondary conversion circuit 111 . The high-voltage AC / DC 114 includes a power factor correction circuit 116 . The AC output assembly 115 includes a switch control circuit 105 .

[0241] The first end of the first secondary conversion circuit 111 is connected to the external battery, the second end of the first secondary conversion circuit 111 is connected to the first end of the first isolation conversion circuit 110, the second end of the first isolation conversion circuit 110 is connected to the first end of the first primary conversion circuit 109, the second end of the first primary conversion circuit 109 is connected to the first end of the power factor correction circuit 116, the second end of the power factor correction circuit 116 is connected to the first end of the switch control circuit 105, and the second end of the switch control circuit 105 is suitable for connection to a second external load.

[0242] The first secondary conversion circuit 111 is configured to receive direct current (DC) power from an external battery, convert the DC power into alternating current (AC) power, and transmit the power to the secondary winding of the first isolated conversion circuit 110. The first isolated conversion circuit 110 is configured to receive AC power having a first voltage from the first secondary conversion circuit 111 via its secondary winding, generate AC power having a second voltage on its primary winding, and transmit the power to the first primary conversion circuit 109. The first primary conversion circuit 109 is configured to receive AC power from the primary winding, convert the AC power into DC power, and transmit the power to the power factor correction circuit 116. The power factor correction circuit 116 is configured to convert the DC power received from the first primary conversion circuit 109 into AC power. The AC power from the power factor correction circuit 116 is transmitted to a second external load via the switch control circuit 105 of the AC power output assembly 115.

[0243] The external battery is a high-voltage battery, for example, a 220V battery.

[0244] In the vehicle-mounted power supply provided in this embodiment, the AC-DC converter 112 in the vehicle's battery system 200 is at least partially removable from the vehicle, forming a mobile power supply together with the external battery and other devices. The AC-DC converter 112 can convert the DC power of the external 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.

[0245] Example 14

[0246] In one embodiment, power supply device 100 includes an off-vehicle battery and an AC / DC converter 112. AC / DC converter 112 includes a high-voltage AC / DC converter 114 and an AC output assembly 115, which are interconnected. Both high-voltage AC / DC converter 114 and AC output assembly 115 are fully removable components. See Figure 29 for a block diagram of the power supply device 100 in this embodiment.

[0247] Figure 30 shows a schematic diagram of the battery system 200 after the AC / DC converter 112 is partially removed from the vehicle's battery system 200. The dashed box 1 indicates the location of the high-voltage AC / DC 114 within the vehicle's battery system 200. The dashed box 2 indicates the location of the AC output assembly 115 within the vehicle's battery system 200.

[0248] 29 , in the power supply device 100 , a first end of the high-voltage AC / DC 114 is connected to an external battery, a second end of the high-voltage AC / DC 114 is connected to a first end of an AC output assembly 115 , and a second end of the AC output assembly 115 is connected to a second external load.

[0249] The high voltage AC / DC 114 includes a power factor correction circuit 116. The AC output assembly 115 includes a switch control circuit 105. The circuit diagram of the high voltage AC / DC 114 can be seen in FIG26 .

[0250] The power factor correction circuit 116 is used to convert the DC power received from the off-vehicle battery into AC power. The AC power from the power factor correction circuit 116 is transmitted to the second off-vehicle load via the switch control circuit 105 of the AC power output assembly 115 .

[0251] The external battery is a high-voltage battery, for example, a 220V battery.

[0252] The vehicle-mounted power supply provided in this embodiment is such that the AC / DC converter 112 in the vehicle's battery system 200 can be removed from the vehicle and form a mobile power supply together with the external battery. The AC / DC converter 112 can convert the DC power of the external battery into AC power for a second external load, thereby making full use of the vehicle's battery system 200 when it is idle, while also meeting the vehicle owner's external AC power needs and improving the vehicle owner's driving experience.

[0253] Example 15

[0254] In one embodiment, power supply device 100 includes an off-vehicle battery and an AC / DC converter 112. AC / DC converter 112 comprises a high-voltage AC / DC unit 114 and an AC output assembly 115, both interconnected. High-voltage AC / DC unit 114 is a fully removable unit, which is part of the vehicle. AC output assembly 115 is an off-vehicle unit. See Figure 31 for a block diagram of the power supply device 100 in this embodiment.

[0255] 32 shows a schematic diagram of the battery system 200 after a portion of the AC / DC converter 112 is removed from the vehicle's battery system 200. The dotted box 1 indicates the location of the high-voltage AC / DC 114 in the vehicle's battery system 200.

[0256] 31 , in the power supply device 100 , a first end of the high-voltage AC / DC 114 is connected to an external battery, a second end of the high-voltage AC / DC 114 is connected to a first end of an AC power output assembly 115 , and a second end of the AC power output assembly 115 is connected to a second external load.

[0257] The high voltage AC / DC 114 includes a power factor correction circuit 116. The AC output assembly 115 includes a switch control circuit 105. The circuit diagram of the high voltage AC / DC 114 can be seen in FIG26 .

[0258] The power factor correction circuit 116 is used to convert the DC power received from the off-vehicle battery into AC power. The AC power from the power factor correction circuit 116 is transmitted to the second off-vehicle load via the switch control circuit 105 of the AC power output assembly 115 .

[0259] The external battery is a high-voltage battery, for example, a 220V battery.

[0260] In the vehicle-mounted power supply provided in this embodiment, the AC-DC converter 112 in the vehicle's battery system 200 is at least partially removable from the vehicle, forming a mobile power supply together with the external battery and other devices. The AC-DC converter 112 can convert the DC power of the external 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.

[0261] Example 16

[0262] In one embodiment, power supply device 100 includes an off-vehicle battery and an AC / DC converter 112. This AC / DC converter 112 is a complete vehicle AC / DC converter 112 and includes a high-voltage DC / low-voltage DC 107, a high-voltage DC / DC 113, a high-voltage AC / DC 114, and an AC output assembly 115, all connected in sequence. See Figure 33 for a block diagram of the power supply device 100 in this embodiment.

[0263] Figure 34 shows a schematic diagram of the battery system 200 after the AC / DC converter 112 has been removed from the vehicle's battery system 200. The dashed box 1 indicates the location of the high-voltage DC / low-voltage DC 107 within the vehicle's battery system 200. The dashed box 2 indicates the location of the high-voltage DC / DC 113 within the vehicle's battery system 200. The dashed box 3 indicates the location of the high-voltage AC / DC 114 within the vehicle's battery system 200. The dashed box 4 indicates the location of the AC output assembly 115 within the vehicle's battery system 200.

[0264] Referring to Figure 33, in the power supply device 100, the first end of the high-voltage DC / low-voltage DC 107 is connected to the external battery, the second end of the high-voltage DC / low-voltage DC 107 is connected to the first end of the high-voltage DC / DC 113, the second end of the high-voltage DC / DC 113 is connected to the first end of the high-voltage AC / DC 114, the second end of the high-voltage AC / DC 114 is connected to the first end of the AC output assembly 115, and the second end of the AC output assembly 115 is connected to the second external load.

[0265] 34 , the high-voltage DC / low-voltage DC 107 includes a first primary conversion circuit 109 , a first isolation conversion circuit 110 , and a first secondary conversion circuit 111 . The high-voltage AC / DC 114 includes a power factor correction circuit 116 . The AC output assembly 115 includes a switch control circuit 105 .

[0266] The first end of the first secondary conversion circuit 111 is connected to the external battery, the second end of the first secondary conversion circuit 111 is connected to the first end of the first isolation conversion circuit 110, the second end of the first isolation conversion circuit 110 is connected to the first end of the first primary conversion circuit 109, the second end of the first primary conversion circuit 109 is connected to the first end of the second secondary conversion circuit 117, the second end of the second secondary conversion circuit 117 is connected to the first end of the second isolation conversion circuit 118, the second end of the second isolation conversion circuit 118 is connected to the first end of the second primary conversion circuit 119, the second end of the second primary conversion circuit 119 is connected to the first end of the power factor correction circuit 116, the second end of the power factor correction circuit 116 is connected to the first end of the switch control circuit 105, and the second end of the switch control circuit 105 is connected to the second external load.

[0267] The first secondary conversion circuit 111 is configured to receive direct current (DC) from an external battery, convert the DC power into alternating current (AC), and transmit the resultant power to the secondary winding of the first isolation conversion circuit 110. The first isolation conversion circuit 110 is configured to receive AC power having a first voltage from the first secondary conversion circuit 111 via its secondary winding, generate AC power having a second voltage on its primary winding, and transmit the resultant power to the first primary conversion circuit 109. The first primary conversion circuit 109 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 117 of the high-voltage DC / DC converter 113.

[0268] The second secondary conversion circuit 117 is configured to receive direct current (DC) power from the first primary conversion circuit 109, convert the DC power into alternating current (AC), and transmit the resultant power to the secondary winding of the second isolated conversion circuit 118. The second isolated conversion circuit 118 is configured to receive AC power having a third voltage from the second secondary conversion circuit 117 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 119. The second 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 116. The power factor correction circuit 116 is configured to convert the DC power received from the second primary conversion circuit 119 into AC power. The AC power from the power factor correction circuit 116 is transmitted to a second external load via the switch control circuit 105 of the AC power output assembly 115.

[0269] The external battery of the vehicle is a low-voltage battery, for example, a 12V battery or a 24V battery.

[0270] The vehicle-mounted power supply provided in this embodiment is such that the AC / DC converter 112 in the vehicle's battery system 200 can be removed from the vehicle and form a mobile power supply together with the external battery. The AC / DC converter 112 can convert the DC power of the external battery into AC power for a second external load, thereby making full use of the vehicle's battery system 200 when it is idle, while also meeting the vehicle owner's external AC power needs and improving the vehicle owner's driving experience.

[0271] Example 17

[0272] In one embodiment, the power supply device 100 includes an off-vehicle battery, an AC / DC converter 112, and a vehicle voltage converter 103. The AC / DC converter 112 can refer to any of the above embodiments. For a structural block diagram of the power supply device 100 of this embodiment, see FIG35 .

[0273] The first end of the vehicle voltage converter 103 is connected to the external battery, and the second end of the vehicle voltage converter 103 is suitable for connecting to a second external load. In the power supply device 100, the vehicle voltage converter 103 is used to convert the voltage of the external battery and output DC power to the second external load.

[0274] Example 18

[0275] In one embodiment, the power supply device 100 includes an off-vehicle battery, an AC / DC converter 112, and a vehicle voltage converter 103. The AC / DC converter 112 may refer to any of the above embodiments.

[0276] The vehicle voltage conversion device 103 comprises a low-voltage output assembly 104. The first end of the low-voltage output assembly 104 is connected to the first battery 101, and the second end of the low-voltage output assembly 104 is adapted for detachable connection to a non-powered load on the vehicle. For a block diagram of the power supply device 100 of this embodiment, see Figure 36.

[0277] The external battery of the vehicle is a low-voltage battery, for example, a 12V battery or a 24V battery.

[0278] The vehicle low-voltage output assembly 104 can step down the voltage of the external battery and output direct current to the second external load, or can step up the voltage of the external battery and output direct current to the second external load.

[0279] For example, the voltage of the external battery is 12V, and the vehicle low-voltage output assembly 104 can convert the 12V voltage of the external battery into 5V to supply power to a load that consumes 5V.

[0280] For another example, the voltage of the first battery 101 is 12V, and the vehicle low-voltage output assembly 104 can convert the 12V voltage of the non-power battery into 24V to supply power to a load that consumes 24V.

[0281] 37 shows a schematic diagram of the battery system 200 after the vehicle voltage conversion device 103 is removed from the vehicle battery system 200. The location of the dotted box 1 is the location of the vehicle voltage conversion device 103 in the battery system 200 of the vehicle.

[0282] In the power supply device 100 provided in this embodiment, the vehicle low-voltage output assembly 104 includes a switch control circuit 105 and a voltage conversion circuit 106. A first terminal of the switch control circuit 105 is connected to an external battery. A first terminal of the voltage conversion circuit 106 is connected to a second terminal of the switch control circuit 105, and a second terminal of the voltage conversion circuit 106 is adapted to be connected to a second external load.

[0283] The vehicle low-voltage output assembly 104 includes a control switch and a voltage conversion circuit 106 .

[0284] The vehicle low-voltage output assembly 104 includes multiple switch control circuits 105 and multiple voltage conversion circuits 106. Each switch control circuit 105 and a corresponding voltage conversion circuit 106 form a branch circuit. The first end of each branch circuit is connected to the external battery, and the second end of each branch circuit is connected to a corresponding second external load. In this way, the vehicle low-voltage output assembly 104 is configured to convert the voltage of the external battery into different voltages, thereby supplying power to loads with different voltage requirements.

[0285] Example 19

[0286] In one embodiment, the power supply device 100 includes an off-vehicle battery, an AC / DC converter 112, and a vehicle voltage converter 103. The AC / DC converter 112 may refer to any of the above embodiments.

[0287] The vehicle voltage conversion device 103 includes a high voltage DC / low voltage DC 107 and a low voltage output assembly 108 connected to each other.

[0288] The external battery is a high-voltage battery, for example, a 220V battery.

[0289] Figure 39 shows a schematic diagram of the vehicle battery system 200 after the high-voltage DC / low-voltage DC 107 and low-voltage output assembly 108 have been removed from the vehicle battery system 200. The dashed box 1 indicates the location of the high-voltage DC / low-voltage DC 107 in the vehicle battery system 200. The dashed box 2 indicates the location of the low-voltage output assembly 108 in the vehicle battery system 200.

[0290] In the power supply device 100, a first end of the high-voltage DC / low-voltage DC 107 is connected to an external battery, a second end of the high-voltage DC / low-voltage DC 107 is connected to a first end of a low-voltage output assembly 108, and a second end of the low-voltage output assembly 108 is connected to a second external load.

[0291] 40 , the high-voltage DC / low-voltage DC 107 includes: a second primary-side conversion circuit 119 , a second isolation conversion circuit 118 , and a second secondary-side conversion circuit 117 .

[0292] The low voltage output assembly 108 includes a switch control circuit 105 and a voltage conversion circuit 106 .

[0293] The first end of the second primary conversion circuit 119 is connected to the external battery, the second end of the second primary conversion circuit 119 is connected to the first end of the second isolation conversion circuit 118, the second end of the second isolation conversion circuit 118 is connected to the first end of the second secondary conversion circuit 117, the second end of the second secondary conversion circuit 117 is connected to the first end of the switch control circuit 105, the second end of the switch control circuit 105 is connected to the first end of the voltage conversion circuit 106, and the second end of the voltage conversion circuit 106 is connected to the second external load.

[0294] The second primary conversion circuit 119 is configured to receive direct current (DC) power from the power battery, convert the DC power into alternating current (AC), and transmit the resultant power to the primary winding of the second isolated conversion circuit 118. The second isolated conversion circuit 118 is configured to receive AC power having a first voltage from the second 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 second secondary conversion circuit 117. The second 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 switch control circuit 105. The DC power from the second secondary circuit is transmitted to the voltage conversion circuit 106 via the switch control circuit 105. The voltage conversion circuit 106 is configured to convert the voltage of the received DC power and output the resultant power to the second external load.

[0295] The low voltage output assembly 108 includes a control switch and a voltage conversion circuit 106 .

[0296] The low-voltage output assembly 108 includes multiple switch control circuits 105 and multiple voltage conversion circuits 106. Each switch control circuit 105 and its corresponding voltage conversion circuit 106 form a branch circuit. The first end of each branch circuit is connected to the high-voltage DC / low-voltage DC 107, and the second end of each branch circuit is connected to the corresponding second external load. This allows the power battery voltage to be converted to different voltages, providing power to loads with different voltage requirements.

[0297] <Embodiment of Vehicle Battery System 200>

[0298] One embodiment of the present application provides a vehicle battery system 200. The vehicle battery system 200 of this embodiment includes a first battery 101 and a power conversion device 102 from the power supply device 100 provided in any of the above embodiments. The first battery 101 is a power battery or a non-power battery of the vehicle. The first end of the power conversion device 102 is connected to the first battery 101, and the second end of the power conversion device 102 is connected to a non-power load or an AC power load of the vehicle.

[0299] In one embodiment, the electric energy conversion device 102 includes: a vehicle voltage conversion device 103, a first end of the vehicle voltage conversion device 103 is connected to the first battery 101, and a second end of the vehicle voltage conversion device 103 is connected to the non-power load of the vehicle.

[0300] In one embodiment, the power conversion device 102 includes an AC / DC converter 112. A first terminal of the AC / DC converter 112 is connected to the first battery 101, and a second terminal of the AC / DC converter 112 is connected to an AC power load. The AC / DC converter 112 is configured to convert the DC power output by the first battery 101 into AC power for the AC power load.

[0301] In one embodiment, referring to Figure 22 , battery system 200 further includes an auxiliary DC power source 201. A first terminal of auxiliary DC power source 201 is connected to first battery 101 via switch control circuit 105 , and a second terminal of auxiliary DC power source 201 is connected to a non-powered load of the vehicle. When vehicle voltage conversion device 103 is removed, auxiliary DC power source 201 provides power to the vehicle's non-powered loads.

[0302] When the vehicle voltage conversion device 103 is disassembled, the first end of the auxiliary source DC201 is connected to the first battery 101 through the switch control circuit 105, and the second end of the auxiliary source DC201 is connected to the non-power load of the vehicle to supply power to the non-power load of the vehicle.

[0303] When the vehicle voltage conversion device 103 is attached, the first terminal of the auxiliary DC source 201 is electrically disconnected from the power battery assembly 205. When the vehicle voltage conversion device 103 is removed, the switch in the switch control circuit 105 is closed, establishing an electrical connection between the first terminal of the auxiliary DC source 201 and the power battery assembly 205.

[0304] 22 , the auxiliary source DC 201 includes a third primary conversion circuit 202, a third isolation conversion circuit 203, and a third secondary conversion circuit 204. For the specific circuit of the auxiliary source DC 201, see the high voltage DC / low voltage DC 107 shown in FIG7 .

[0305] The first end of the third primary conversion circuit 202 is connected to the power battery assembly 205, the second end of the third primary conversion circuit 202 is connected to the first end of the third isolation conversion circuit 203, the second end of the third isolation conversion is connected to the first end of the third secondary conversion circuit 204, and the second end of the third secondary conversion circuit 204 is connected to the non-power load of the vehicle.

[0306] Figure 20 shows another schematic diagram of a vehicle battery system 200. Referring to Figure 20, the vehicle battery system 200 includes a power battery assembly 205, a power distribution circuit, an AC / DC converter 112, a non-power battery, and a voltage converter.

[0307] The power distribution circuit includes at least one fuse and at least one control switch.

[0308] The AC / DC converter 112 includes a high-voltage DC / DC 113, a high-voltage AC / DC 114, and an AC output assembly 115. The detailed circuit diagrams of the high-voltage DC / DC 113 and the high-voltage AC / DC 114 can be found in the above embodiment. The AC output assembly 115 includes a switch control circuit 105.

[0309] A first end of the high-voltage DC / DC 113 is connected to the power battery assembly 205 , a second end of the high-voltage DC / DC 113 is connected to a first end of the high-voltage AC / DC 114 , a second end of the high-voltage AC / DC 114 is connected to a first end of the AC power output assembly 115 , and a second end of the AC power output assembly 115 is connected to an AC power load.

[0310] 21 , the voltage conversion device includes interconnected high-voltage DC / low-voltage DC 107 and low-voltage output assembly 108. A detailed circuit diagram of high-voltage DC / low-voltage DC 107 is shown in FIG7 . Low-voltage output assembly 108 includes switch control circuit 105 and voltage conversion circuit 106.

[0311] The first end of the high-voltage DC / low-voltage DC 107 is connected to the power battery assembly 205 , the second end of the high-voltage DC / low-voltage DC 107 is connected to the first end of the low-voltage output assembly 108 , and the second end of the low-voltage output assembly 108 is connected to the non-power load of the vehicle.

[0312] The power battery assembly 205 supplies power to the non-power loads of the vehicle through the high-voltage DC / low-voltage DC 107 and the low-voltage output bus.

[0313] The power battery assembly 205 outputs high-voltage AC power to AC loads through the high-voltage DC / DC 113, the high-voltage AC / DC 114, and the AC output assembly 115. The high-voltage AC power is within the high-voltage standard range, such as 220V and 380V.

[0314] Non-power batteries can also power non-power loads.

[0315] The power battery assembly 205 supplies power to the vehicle's power system through a power distribution circuit. Specifically, the power battery assembly 205 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.

[0316] The power battery supplies power to the air-conditioning compressor and PTC (Positive Temperature Coefficient) heater through the power distribution circuit.

[0317] 20 , 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 114 and the high-voltage DC / DC 113 .

[0318] In conjunction with Figure 11, the power factor correction circuit 116 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 119. The second primary conversion circuit 119 is used to receive DC power from the power factor correction circuit 116, convert the DC power into AC power, and transmit it to the second isolation conversion circuit 118. The second isolation conversion circuit 118 is used to receive AC power with a first voltage value from the second primary conversion circuit 119 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 117. The second secondary conversion circuit 117 is used to receive AC power from the secondary winding of the second isolation conversion circuit 118, convert the AC power into DC power, and transmit it to the power battery assembly 205 through the distribution circuit to charge the power battery.

[0319] 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 114, high-voltage DC / DC 113, and high-voltage DC / low-voltage DC 107.

[0320] In conjunction with Figures 7 and 11, the power factor correction circuit 116 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 119. The second primary conversion circuit 119 is configured to receive DC power from the power factor correction circuit 116, convert the DC power into AC power, and transmit it to the second isolation conversion circuit 118. The second isolation conversion circuit 118 is configured to receive AC power having a first voltage from the first primary conversion circuit 109 via its primary winding, generate AC power having a second voltage at its secondary winding, and transmit it to the second secondary conversion circuit 117. The second secondary conversion circuit 117 is configured to receive AC power from the secondary winding of the second isolation conversion circuit 118, convert the AC power into DC power, and transmit it to the first primary conversion circuit 109. The first primary conversion circuit 109 is configured to receive DC power from the second secondary conversion circuit 117, convert the DC power into AC power, and transmit it to the primary winding of the first isolation conversion circuit 110. The first isolation conversion circuit 110 is configured to receive AC power having a third voltage from the first primary conversion circuit 109 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 111. The first secondary conversion circuit 111 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.

[0321] One embodiment of the present application provides a vehicle battery system 200. The vehicle battery system 200 of this embodiment includes a first battery 101 and an AC / DC converter 112 from the power supply device 100 provided in any of the aforementioned embodiments. The first battery 101 is a power battery or a non-power battery of the vehicle. The first terminal of the AC / DC converter 112 is connected to the first battery 101, and the second terminal of the AC / DC converter 112 is connected to the vehicle's AC power load.

[0322] In one embodiment, the battery system 200 further includes a voltage conversion device. A first end of the voltage conversion device is connected to the first battery 101, and a second end of the voltage conversion device is adapted to be connected to a non-powered load of the vehicle. The voltage conversion device is configured to convert the voltage of the first battery 101 and output direct current (DC) to the non-powered load of the vehicle.

[0323] Figure 41 shows another schematic diagram of the vehicle battery system 200. Referring to Figure 41, the vehicle battery system 200 includes a power battery assembly 205, a power distribution circuit, an AC / DC converter 112, a non-power battery, and a voltage converter.

[0324] The power distribution circuit includes at least one fuse and at least one control switch.

[0325] The AC / DC converter 112 includes a high-voltage DC / DC 113, a high-voltage AC / DC 114, and an AC output assembly 115. The detailed circuit diagrams of the high-voltage DC / DC 113 and the high-voltage AC / DC 114 can be found in the above embodiment. The AC output assembly 115 includes a switch control circuit 105.

[0326] A first end of the high-voltage DC / DC 113 is connected to the power battery assembly 205 , a second end of the high-voltage DC / DC 113 is connected to a first end of the high-voltage AC / DC 114 , a second end of the high-voltage AC / DC 114 is connected to a first end of the AC power output assembly 115 , and a second end of the AC power output assembly 115 is connected to an AC power load.

[0327] The voltage conversion device includes a high-voltage DC / low-voltage DC 107 and a low-voltage output assembly 108 connected to each other. The specific circuit diagram of the high-voltage DC / low-voltage DC 107 is shown in Figure 40. The low-voltage output assembly 108 includes a switch control circuit 105 and a voltage conversion circuit 106.

[0328] The first end of the high-voltage DC / low-voltage DC 107 is connected to the power battery assembly 205 , the second end of the high-voltage DC / low-voltage DC 107 is connected to the first end of the low-voltage output assembly 108 , and the second end of the low-voltage output assembly 108 is connected to the non-power load of the vehicle.

[0329] The power battery assembly 205 supplies power to the non-power loads of the vehicle through the high-voltage DC / low-voltage DC 107 and the low-voltage output bus.

[0330] The power battery assembly 205 outputs high-voltage AC power to AC loads through the high-voltage DC / DC 113, the high-voltage AC / DC 114, and the AC output assembly 115. The high-voltage AC power is within the high-voltage standard range, such as 220V and 380V.

[0331] Non-power batteries can also power non-power loads.

[0332] The power battery assembly 205 supplies power to the vehicle's power system through a power distribution circuit. Specifically, the power battery assembly 205 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.

[0333] The power battery supplies power to the air-conditioning compressor and PTC (Positive Temperature Coefficient) heater through the power distribution circuit.

[0334] 41 , 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 114 and the high-voltage DC / DC 113 .

[0335] In conjunction with Figure 26, the power factor correction circuit 116 is used to receive AC power from the charging device, convert the AC power into DC power, and transmit it to the first primary conversion circuit 109. The first primary conversion circuit 109 is used to receive DC power from the power factor correction circuit 116, convert the DC power into AC power, and transmit it to the first isolation conversion circuit 110. The first isolation conversion circuit 110 is used to receive AC power with a first voltage value from the first primary conversion circuit 109 through the primary winding, and generate AC power with a first voltage value through the secondary winding and transmit it to the first secondary conversion circuit 111. The first secondary conversion circuit 111 is used to receive AC power from the secondary winding of the first isolation conversion circuit 110, convert the AC power into DC power, and transmit it to the power battery assembly 205 through the distribution circuit to charge the power battery.

[0336] 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 114, high-voltage DC / DC 113, and high-voltage DC / low-voltage DC 107.

[0337] In conjunction with Figures 26 and 40, the power factor correction circuit 116 is configured to receive AC power from the charging device, convert the AC power into DC power, and transmit it to the first primary conversion circuit 109. The first primary conversion circuit 109 is configured to receive DC power from the power factor correction circuit 116, convert the DC power into AC power, and transmit it to the first isolation conversion circuit 110. The first isolation conversion circuit 110 is configured to receive AC power having a first voltage from the first primary conversion circuit 109 through its primary winding, generate AC power having a second voltage through its secondary winding, and transmit the generated AC power to the first secondary conversion circuit 111. The first secondary conversion circuit 111 is configured to receive AC power from the secondary winding of the first isolation conversion circuit 110, convert the AC power into DC power, and transmit it to the second primary conversion circuit 119. The second primary conversion circuit 119 is configured to receive DC power from the first secondary conversion circuit 111, convert the DC power into AC power, and transmit it to the primary winding of the second isolation conversion circuit 118. The second isolation conversion circuit 118 is configured to receive AC power having a third voltage from the second 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 second secondary conversion circuit 117. The second 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.

[0338] <Vehicle Example>

[0339] One embodiment of the present application provides a vehicle, including a battery system 200 of the vehicle according to any of the above embodiments.

[0340] 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.

[0341] 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.

[0342] 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.

[0343] A computer-readable storage medium can be a tangible device that can hold and store computer instructions for use by a computer instruction execution device. A computer-readable storage medium can be, for example, but not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination thereof. More specific examples (a non-exhaustive list) of computer-readable storage media include: a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a static random access memory (SRAM), a portable compact disc read-only memory (CD-ROM), a digital versatile disk (DVD), a memory stick, a floppy disk, a mechanical encoding device, such as a punch card or a raised structure in a groove on which computer instructions are stored, and any suitable combination thereof. As used herein, a computer-readable storage medium is not to be construed as a transient signal per se, such as a radio wave or other freely propagating electromagnetic wave, an electromagnetic wave propagating through a waveguide or other transmission medium (e.g., a light pulse through a fiber optic cable), or an electrical signal transmitted through an electrical wire.

[0344] 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.

[0345] 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.

[0346] 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 power supply device (100), characterized in that: include: A first battery (101), the first battery (101) is an off-vehicle battery, and the off-vehicle battery is used to supply power to an off-vehicle load; and An electric energy conversion device (102), at least a portion of which is detachably connected to the vehicle, 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 power supply device (100), the electric energy conversion device (102) is used to convert the electric energy of the external battery to supply power to the external load.

2. The power supply device (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 whole-vehicle voltage conversion device (103), the whole-vehicle voltage conversion device (103) is at least partially detachably connected to the vehicle, a first end of the whole-vehicle voltage conversion device (103) is connected to the first battery (101), and a second end of the whole-vehicle voltage conversion device (103) is suitable for connecting to the first off-vehicle load, In the power supply device (100), the vehicle voltage conversion device (103) is used to convert the voltage of the external battery and output direct current to the first external load.

3. The power supply device (100) according to claim 2, characterized in that: The whole vehicle voltage conversion device (103) is a whole vehicle low voltage output assembly (104), and the whole vehicle low voltage output assembly (104) is a whole vehicle device that can be removed from the vehicle; In the power supply device (100), the first end of the vehicle low-voltage output assembly (104) is connected to the first battery (101), and the second end of the vehicle low-voltage output assembly (104) is suitable for detachably connecting to a non-power load of the vehicle.

4. The power supply device (100) according to claim 3, characterized in that: The vehicle low-voltage output assembly (104) comprises: A switch control circuit (105), wherein a first end of the switch control circuit (105) is connected to the first A battery (101) is connected; and A voltage conversion circuit (106), wherein a first end of the voltage conversion circuit (106) is connected to a second end of the switch control circuit (105), and a second end of the voltage conversion circuit (106) is connected to the first external vehicle load.

5. The power supply device (100) according to any one of claims 2 to 4, characterized in that: The vehicle voltage conversion device (103) comprises a high voltage DC / low voltage DC (107) and a low voltage output assembly (108) connected to each other; At least one of the high voltage DC / low voltage DC (107) and the low voltage output assembly (108) is a complete vehicle device that can be removed from the vehicle.

6. The power supply device (100) according to claim 5, characterized in that: The high voltage DC / low voltage DC (107) comprises: a first primary side conversion circuit (109), a first isolation conversion circuit (110), and a first secondary side conversion circuit (111); The low voltage output assembly (108) comprises a switch control circuit (105) and a voltage conversion circuit (106); The first end of the first primary conversion circuit (109) is connected to the first battery (101), the second end of the first primary conversion circuit (109) is connected to the first end of the first isolation conversion circuit (110), the second end of the first isolation conversion circuit (110) is connected to the first end of the first secondary conversion circuit (111), the second end of the first secondary conversion circuit (111) is connected to the first end of the switch control circuit (105), the second end of the switch control circuit (105) is connected to the first end of the voltage conversion circuit (106), and the second end of the voltage conversion circuit (106) is connected to the first external load.

7. The power supply device (100) according to any one of claims 1 to 6, characterized in that: The off-vehicle load comprises a second off-vehicle 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 off-vehicle battery, and a second end of the AC / DC conversion device (112) is suitable for connecting to the second off-vehicle load; At least part of the AC / DC conversion device (112) is detachably connected to the vehicle. In the power supply device (100), the AC / DC conversion device (112) is used to convert the DC power output by the external battery into AC power for the second external load.

8. The power supply device (100) according to claim 7, characterized in that: The AC / DC conversion device (112) is a whole-vehicle AC / DC conversion device (112), and the AC / DC conversion device (112) comprises: a high-voltage DC / DC (113), a high-voltage AC / DC (114), and an AC output assembly (115) connected in sequence; The high-voltage DC / DC (113), the high-voltage AC / DC (114) and the alternating current output assembly (115) are all complete vehicle devices that can be removed from the vehicle.

9. The power supply device (100) according to claim 7, characterized in that: The AC / DC conversion device (112) comprises: a high-voltage DC / DC (113), a high-voltage AC / DC (114) and an AC output assembly (115) connected in sequence; The high-voltage DC / DC (113) and the high-voltage AC / DC (114) are both complete vehicle devices that can be removed from the vehicle, and the alternating current output assembly (115) is an off-vehicle device.

10. The power supply device (100) according to claim 8 or 9, characterized in that: The high-voltage DC / DC (113) comprises a first secondary-side conversion circuit (111), a first isolation conversion circuit (110) and a first primary-side conversion circuit (109); The high voltage AC / DC (114) includes a power factor correction circuit (116); The AC power output assembly (115) comprises a switch control circuit (105); The first end of the first secondary conversion circuit (111) is connected to the external battery, the second end of the first secondary conversion circuit (111) is connected to the first end of the first isolation conversion circuit (110), the second end of the first isolation conversion circuit (110) is connected to the first end of the first primary conversion circuit (109), the second end of the first primary conversion circuit (109) is connected to the first end of the power factor correction circuit (116), the second end of the power factor correction circuit (116) is connected to the first end of the switch control circuit (105), and the second end of the switch control circuit (105) is connected to the second external load.

11. The power supply device (100) according to any one of claims 7 to 10, characterized in that: The AC / DC conversion device (112) is a whole vehicle AC / DC conversion device (112), and the whole vehicle AC / DC conversion device (112) comprises: a high-voltage AC / DC (114) and an AC output assembly (115) connected to each other; the high-voltage AC / DC (114) and the AC output assembly (115) are both whole vehicle devices that can be removed from the vehicle.

12. The power supply device (100) according to any one of claims 7 to 11, characterized in that: The whole vehicle AC / DC conversion device (112) comprises: a high voltage AC / DC (114) and an AC output assembly (115) connected to each other; The high-voltage AC / DC (114) is a complete vehicle device that can be removed from the vehicle, and the alternating current output assembly (115) is an off-vehicle device.

13. The power supply device (100) according to claim 11 or 12, characterized in that: The high voltage AC / DC (114) includes a power factor correction circuit (116); The AC power output assembly (115) comprises a switch control circuit (105); The first end of the power factor correction circuit (116) is connected to the external battery, the second end of the power factor correction circuit (116) is connected to the first end of the switch control circuit (105), and the second end of the switch control circuit (105) is connected to the second external load.

14. The power supply device (100) according to any one of claims 7 to 12, characterized in that: The whole vehicle AC / DC conversion device (112) is a whole vehicle AC / DC conversion device (112), and the whole vehicle AC / DC conversion device (112) comprises: a high-voltage DC / low-voltage DC (107), a high-voltage DC / DC (113), a high-voltage AC / DC (114), and an AC output assembly (115) connected in sequence; the high-voltage DC / low-voltage DC (107), the high-voltage DC / DC (113), the high-voltage AC / DC (114), and the AC output assembly (115) are all whole vehicle devices that can be removed from the vehicle.

15. The power supply device (100) according to claim 14, characterized in that: The high voltage DC / low voltage DC (107) comprises a first secondary side conversion circuit (111), a first isolation conversion circuit (110) and a first primary side conversion circuit (109); The high-voltage DC / DC (113) comprises a second secondary-side conversion circuit (117), a second isolation conversion circuit (118) and a second primary-side conversion circuit (119); The high voltage AC / DC (114) includes a power factor correction circuit (116); The AC power output assembly (115) comprises a switch control circuit (105); The first end of the first secondary conversion circuit (111) is connected to the external battery, the second end of the first secondary conversion circuit (111) is connected to the first end of the first isolation conversion circuit (110), the second end of the first isolation conversion circuit (110) is connected to the first end of the first primary conversion circuit (109), the second end of the first primary conversion circuit (109) is connected to the first end of the second secondary conversion circuit (117), the second end of the second secondary conversion circuit (117) is connected to the first end of the second isolation conversion circuit (118), the second end of the second isolation conversion circuit (118) is connected to the first end of the second primary conversion circuit (119), the second end of the second primary conversion circuit (119) is connected to the first end of the power factor correction circuit (116), the second end of the power factor correction circuit (116) is connected to the first end of the switch control circuit (105), and the second end of the switch control circuit (105) is connected to the second external load.

16. A battery system (200) for a vehicle, characterized in that: include: A first battery (101); the first battery (101) is a power battery of a vehicle or a non-power battery of a vehicle; And the electric energy conversion device (102) in the power supply device (100) as described in any one of claims 1 to 15; 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 connected to the non-power load or AC power load of the vehicle.

17. The battery system (200) according to claim 16, characterized in that: The electric energy conversion device (102) comprises: A whole vehicle voltage conversion device (103), wherein a first end of the whole vehicle voltage conversion device (103) is connected to the first battery (101), and a second end of the whole vehicle voltage conversion device (103) is connected to a non-power load of the vehicle.

18. The battery system (200) according to claim 16 or 17, characterized in that: The electric energy conversion device (102) comprises: An AC / DC conversion device (112), wherein 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 connected to an AC power load of the vehicle, and the AC / DC conversion device (112) is used to convert the DC power output by the first battery (101) into AC power for the AC power load.

19. The battery system (200) according to any one of claims 16 to 18, characterized in that: The battery system (200) further includes: An auxiliary DC source (201), wherein a first end of the auxiliary DC source (201) is connected to the first battery (101) via a switch control circuit (105), and a second end of the auxiliary DC source (201) is connected to a non-power load of the vehicle; when the vehicle voltage conversion device (103) is disassembled, the auxiliary DC source (201) is used to supply power to the non-power load of the vehicle.

20. The battery system (200) according to claim 19, characterized in that: The auxiliary source DC (201) comprises: a third primary conversion circuit (202), a third isolation conversion circuit (203), and a third secondary conversion circuit (204); The first end of the third primary conversion circuit (202) is connected to the power battery assembly (205), the second end of the third primary conversion circuit (202) is connected to the first end of the third isolation conversion circuit (203), the second end of the third isolation conversion circuit is connected to the first end of the third secondary conversion circuit (204), and the second end of the third secondary conversion circuit (204) is connected to the non-power load of the vehicle.

21. The battery system (200) according to claim 18, characterized in that: The battery system (200) further includes: A voltage conversion device, wherein a first end of the voltage conversion device is connected to the first battery (101), and a second end of the voltage conversion device is suitable for connecting to a non-power load of a vehicle, and the voltage conversion device is used to convert the voltage of the first battery (101) and output direct current to the non-power load of the vehicle.

22. A vehicle, characterized in that: Comprising a battery system (200) as claimed in any one of claims 16 to 21.

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