Power supply device and vehicle

Abstract

The utility model discloses a power supply device and a vehicle, the power supply device uses a first power supply to output a plurality of first direct currents with different voltage values, so that corresponding working voltages can be provided for a plurality of different types of electricity loads, and the working voltage requirements required by the different types of electricity loads can be met; therefore, the power supply device can effectively avoid the problem that an existing voltage platform cannot meet different voltage requirements of a plurality of electric appliances of the vehicle at the same time, and the vehicle only needs to be provided with one power supply device, so that corresponding working voltages can be provided for a plurality of different types of electric loads; therefore, the working voltage requirements of different types of electric loads can be met, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a power supply device and a vehicle. Background Art

[0002] The voltage platform is an important component of the car, responsible for supplying power to the car's electrical appliances. Currently, the mainstream voltage platforms are divided into 12V and 24V according to voltage output.

[0003] However, for larger commercial vehicles, due to the high power requirements of non-high-voltage components such as steering and cooling, a 24V or higher 48V voltage platform is selected to ensure high-power output of electrical appliances. However, other non-power electrical appliances such as central computing units, airbag controllers, and BCMs (body control modules) must also be developed and selected according to the 24V or 48V voltage platform. As a result, mature 12V products cannot be used for components, resulting in high development costs and low versatility.

[0004] Therefore, the existing voltage platform cannot simultaneously meet the different voltage requirements of multiple electrical appliances in a vehicle, resulting in poor practicality. Utility Model Content

[0005] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention aims to provide a power supply device and a vehicle.

[0006] The present invention proposes a power supply device, which utilizes a first power supply to output a plurality of first direct currents with different voltage values, thereby providing corresponding operating voltages for a plurality of different types of electrical loads to meet the operating voltage requirements of the different types of electrical loads; thus, the power supply device can effectively avoid the problem that the existing voltage platform cannot simultaneously meet the different voltage requirements of a plurality of electrical appliances in a vehicle; the vehicle only needs to be equipped with one such power supply device to provide corresponding operating voltages for a plurality of different types of electrical loads to meet the operating voltage requirements of the different types of electrical loads, and has high practicality.

[0007] Therefore, a second object of the present invention is to provide a vehicle.

[0008] Therefore, the third object of the present invention is to provide a power supply method.

[0009] To achieve the above-mentioned objectives, the first aspect of the present invention discloses a power supply device, including: a first power supply, the first power supply including a first power supply and a power supply device, the power supply device is connected to multiple different types of electrical loads, and the power supply device is used to convert the electric energy output by the first power supply into a first direct current with multiple different voltage values, so as to provide a one-to-one working voltage for multiple different types of electrical loads, wherein the working voltages required by different types of electrical loads are different.

[0010] According to the power supply device of the present invention, a first power supply is utilized to output a plurality of first direct currents of different voltage values, thereby being able to provide corresponding working voltages for a plurality of different types of electrical loads to meet the working voltage requirements of different types of electrical loads; thus, the power supply device can effectively avoid the problem that the existing voltage platform cannot simultaneously meet the different voltage requirements of a plurality of electrical appliances in the vehicle; the vehicle only needs to be equipped with one such power supply device to provide corresponding working voltages for a plurality of different types of electrical loads to meet the working voltage requirements of different types of electrical loads, and is highly practical.

[0011] In addition, the power supply device of the present invention may also have the following additional technical features:

[0012] In some examples, the power supply device further includes: a first switch module, which is connected between the first power supply and multiple different types of electrical loads, and is used to control the connection status of the first power supply and multiple different types of electrical loads by turning it on and off.

[0013] In some examples, the power supply device further includes: a second power supply, the second power supply being connected to a plurality of different types of electrical loads, the second power supply being capable of outputting a second direct current having a first preset voltage value to supply power to a first target electrical load among the plurality of different types of electrical loads, wherein the operating voltage required by the first target electrical load is adapted to the voltage of the second direct current.

[0014] In some examples, the power supply device further includes: a second switch module, which is connected between the second power supply and multiple different types of electrical loads, and is used to control the connection status of the second power supply and multiple different types of electrical loads by turning it on and off.

[0015] In some examples, the power supply device further includes: a boost module, which is connected between the second switch module and multiple different types of electrical loads, and is used to boost the voltage of the second direct current to different degrees, and output a third direct current with multiple different voltage values to supply power to a second target electrical load among the multiple different types of electrical loads, wherein the operating voltage required by the second target electrical load is adapted to the voltage of the third direct current.

[0016] In some examples, the power supply device further includes: a controller configured to control the on / off status of the first switch module and the second switch module.

[0017] In some examples, the controller is used to: when the first power supply is not faulty, control the first switch module to be turned on, and control the second switch module to be turned off, so that the first power supply remains connected to multiple different types of power loads, and the second power supply is disconnected from multiple different types of power loads, so that the first power supply can supply power to multiple different types of power loads; when the first power supply fails, control the first switch module to be turned off, and control the second switch module to be turned on, so that the first power supply can be disconnected from multiple different types of power loads, and the second power supply can be connected to multiple different types of power loads, so that the second power supply can supply power to multiple different types of power loads.

[0018] In some examples, the first power supply includes: a plurality of voltage output ports, wherein the plurality of voltage output ports are configured to output a plurality of first direct currents having different voltage values in a one-to-one correspondence.

[0019] In some examples, the first switch module includes: a plurality of first switch units, one end of the plurality of first switch units corresponds one-to-one to the plurality of voltage output units, and the other end of the plurality of first switch units corresponds one-to-one to the plurality of different types of electrical load connections.

[0020] In some examples, the first switching unit includes at least one first switching tube.

[0021] In some examples, one end of the second switch module is connected to the second power supply, the other end of the second switch module is connected to the first target electrical load, and the other end of the second switch module is also connected to the second target electrical load through the boost module.

[0022] In some examples, the second switch module includes at least one second switch tube.

[0023] In some examples, the boost module includes a diode, an anode of the diode is connected to the other end of the second switch module, and a cathode of the diode is connected to the second target electrical load.

[0024] To achieve the above-mentioned purpose, the second aspect of the present invention discloses a vehicle, comprising the power supply device described in the first aspect of the present invention.

[0025] According to the vehicle of the present invention, the power supply device it includes utilizes a first power supply to output a plurality of first direct currents of different voltage values, thereby being able to provide corresponding working voltages for a plurality of different types of electrical loads to meet the working voltage requirements of different types of electrical loads; thereby, the power supply device can effectively avoid the problem that the existing voltage platform cannot simultaneously meet the different voltage requirements of a plurality of electrical appliances in the vehicle. The vehicle only needs to be equipped with one such power supply device to provide corresponding working voltages for a plurality of different types of electrical loads to meet the working voltage requirements of different types of electrical loads, and the practicality is high.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0028] Figure 1 This is a schematic structural diagram of a power supply device according to an embodiment of the present utility model;

[0029] Figure 2 is a structural schematic diagram of a power supply device according to an additional embodiment of the utility model;

[0030] Figure 3 is a schematic structural diagram of a power supply device according to another embodiment of the present utility model;

[0031] Figure 4 is a structural schematic diagram of a power supply device according to another additional embodiment of the utility model;

[0032] Figure 5 is a structural schematic diagram of a power supply device according to another embodiment of the present utility model;

[0033] Figure 6 is a structural schematic diagram of a power supply device according to another embodiment of the present utility model;

[0034] Figure 7 It is a structural schematic diagram of a power supply device according to a specific embodiment of the utility model.

[0035] Reference numerals:

[0036] Power supply device 100; first power supply 110; first switch module 120; second power supply 130; second switch module 140; boost module 150; controller 160. DETAILED DESCRIPTION

[0037] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0038] Reference below Figure 1-Figure 7 A power supply device, a DC-DC converter, and a vehicle according to embodiments of the present invention are described.

[0039] Figure 1 FIG. 1 is a schematic diagram of a power supply device according to an embodiment of the present invention. The power supply device can be applied to electric vehicles or hybrid vehicles, for example. Figure 1 As shown, the power supply device 100 includes: a first power supply 110, the first power supply 110 includes a first power supply 1101 and a power supply device 1102, the power supply device 1102 is connected to multiple different types of electrical loads, and the power supply device 1102 is used to convert the electric energy output by the first power supply 1101 into a first direct current with multiple different voltage values, so as to provide working voltages for multiple different types of electrical loads in a one-to-one correspondence, wherein the working voltages required by different types of electrical loads are different.

[0040] In a specific embodiment, the power supply device 1102 is used to convert the electric energy output by the first power supply 1101 into a plurality of first direct currents with different voltage values. The first power supply 1101 is, for example, but not limited to, a power battery of a vehicle. The power supply device 1102 is, for example, but not limited to, a DC / DC converter (DC / DC converter). The DC / DC converter converts the high voltage output by the vehicle power battery into multiple low-voltage direct currents. The multiple low-voltage direct currents include, but are not limited to, 12V and 24V, thereby providing working voltage for multiple different types of electrical loads. The electrical loads include, but are not limited to, EPS (Electric Power Steering) with a working voltage of 24V, fans, and PEU (Power Electronics Unit) with a working voltage of 12V, BMS (Battery Management System), BSC (Braking Safety Control System), CCU (Clutch Control Unit), intelligent cockpit domain control, intelligent driving domain control, and airbag controller.

[0041] Specifically, the power supply device 100 utilizes the first power supply 110 to output a plurality of first direct currents with different voltage values, thereby being able to provide corresponding working voltages for a plurality of different types of electrical loads to meet the working voltage requirements of different types of electrical loads; thus, the power supply device 100 can effectively avoid the problem that the existing voltage platform cannot simultaneously meet the different voltage requirements of a plurality of electrical appliances in the vehicle. The vehicle only needs to be equipped with one such power supply device 100 to provide corresponding working voltages for a plurality of different types of electrical loads to meet the working voltage requirements of different types of electrical loads, and is highly practical.

[0042] Figure 2 is a schematic structural diagram of a power supply device according to an additional embodiment of the present utility model. In one embodiment of the present utility model, Figure 2 As shown, the power supply device 100 also includes a first switch module 120, which is connected between the first power supply 110 and multiple different types of electrical loads, and is used to control the connection status of the first power supply 110 and multiple different types of electrical loads by turning it on and off.

[0043] In a specific embodiment, the first switch module 120 may include multiple switch units, and the multiple switch units correspond one-to-one to multiple electrical loads. By controlling the on and off states of the multiple switch units in the first switch module 120, the connection states of the corresponding different types of electrical loads and the first power supply 110 can be controlled.

[0044] Specifically, the first switch module 120 is used to connect the first power supply 110 and multiple different types of electrical loads. By controlling the on-off state of the first switch module 120, the connection state between the first power supply 110 and multiple different types of electrical loads can be controlled, that is, the on-off state of multiple different types of electrical loads can be controlled.

[0045] At the same time, the first switch module 120 connects the first power supply 110 and multiple different types of electrical loads, and controls the on and off states of multiple different types of electrical loads. It can also play a role in protecting the circuit. When a certain electrical load is short-circuited or other types of faults occur, the first switch module 120 is disconnected in time to ensure the safety of the first power supply 110.

[0046] Figure 3 : is a schematic structural diagram of a power supply device according to another embodiment of the present utility model. In one embodiment of the present utility model, Figure 3 As shown, the power supply device 100 also includes a second power supply 130, which is connected to multiple different types of electrical loads. The second power supply 130 can output a second direct current with a first preset voltage value to supply power to a first target electrical load among multiple different types of electrical loads, wherein the operating voltage required by the first target electrical load is adapted to the voltage of the second direct current.

[0047] In a specific embodiment, the second power supply 130 is, for example but not limited to, a battery. The battery can output a second direct current having a first preset voltage value. The second direct current is, for example but not limited to, 12V direct current. The battery supplies power to a first target electrical load among multiple different types of electrical loads. The first target electrical load includes, for example but not limited to, a PEU (Power Electronics Unit) with an operating voltage of 12V, a BMS (Battery Management System), a BSC (Braking Safety Control System), a CCU (Clutch Control Unit), an intelligent cockpit domain control, an intelligent driving domain control, and an airbag controller.

[0048] Specifically, when the first power supply 110 cannot supply power to the electrical load due to a fault or other reasons, the power supply device 100 can use the second power supply 130 to output a second direct current with a first preset voltage value to supply power to a first target electrical load among multiple different types of electrical loads, thereby meeting the working voltage requirement of the first target electrical load; thus, the power supply device 100 supplies power to the electrical load through the first power supply 110 and the second power supply 130, ensuring reliable power supply to the electrical load, thereby ensuring the safety of the vehicle.

[0049] Figure 4 is a schematic structural diagram of a power supply device according to another additional embodiment of the present utility model. In one embodiment of the present utility model, Figure 4 As shown, the power supply device 100 also includes a second switch module 140, which is connected between the second power supply 130 and multiple different types of electrical loads, and is used to control the connection status of the second power supply 130 and multiple different types of electrical loads by turning it on and off.

[0050] Specifically, the second switch module 140 is used to connect the second power supply 130 and multiple different types of electrical loads. By controlling the on-off state of the second switch module 140, the connection state of the second power supply 130 and multiple different types of electrical loads can be controlled, that is, the on-off state of multiple different types of electrical loads can be controlled.

[0051] At the same time, the second switch module 140 connects the second power supply 130 and multiple different types of electrical loads, and controls the on and off status of multiple different types of electrical loads. It can also play a role in protecting the circuit. When a certain electrical load is short-circuited or other types of faults occur, the second switch module 140 is disconnected in time to ensure the safety of the second power supply 130.

[0052] Figure 5 : is a schematic structural diagram of a power supply device according to another embodiment of the present utility model. In one embodiment of the present utility model, Figure 5 As shown, the power supply device 100 also includes a boost module 150, which is connected between the second switch module 140 and multiple different types of electrical loads, and is used to boost the voltage of the second direct current to different degrees, and output a third direct current with multiple different voltage values to supply power to a second target electrical load among multiple different types of electrical loads, wherein the operating voltage required by the second target electrical load is adapted to the voltage of the third direct current.

[0053] In a specific embodiment, the second power supply 130 is, for example but not limited to, a vehicle battery. The battery can output a second direct current with a first preset voltage value. The second direct current is, for example but not limited to, 12V direct current. The boost module 150 is connected to the second power supply 130 through the second switch module 140. The boost module 150 boosts the voltage of the second direct current output by the second power supply 130 to different degrees and outputs a plurality of third direct currents with different voltage values. The third direct current is, for example but not limited to, 24V direct current. The boost module 150 transmits the third direct current to a second target electrical load among a plurality of different types of electrical loads for power supply. The second target electrical load includes, for example but not limited to, an EPS (Electric Power Steering) with an operating voltage of 24V and a fan.

[0054] Specifically, when the first power supply 110 cannot supply power to the electrical load due to a fault or other reasons, the power supply device 100 can not only use the second power supply 130 to output a second direct current with a first preset voltage value to supply power to a first target electrical load among multiple different types of electrical loads, but also use the boost module 150 to boost the voltage of the second direct current to different degrees, and output a third direct current with multiple different voltage values to supply power to a second target electrical load among multiple different types of electrical loads, thereby further ensuring the safety of the vehicle and the perfection of its functions.

[0055] During this process, the second switch module 140 connects the second power supply 130 and the boost module 150. By controlling the on / off state of the second switch module 140, the connection state of the second power supply 130 and the boost module 150 can be controlled, that is, the on / off state of multiple different types of electrical loads can be controlled.

[0056] At the same time, the second switch module 140 connects the second power supply 130 and the boost module 150, and controls the on and off status of multiple different types of electrical loads. It can also play a role in protecting the circuit. When a certain electrical load or the boost module 150 is short-circuited or other types of faults occur, the second switch module 140 is disconnected in time to ensure the safety of the second power supply 130.

[0057] Figure 6 : is a schematic structural diagram of a power supply device according to another embodiment of the present utility model. In one embodiment of the present utility model, Figure 6 As shown, the power supply device 100 further includes a controller 160 , which is used to control the on / off states of the first switch module 120 and the second switch module 140 .

[0058] Specifically, the power supply device 100 controls the on / off state of the first switch module 120 and the second switch module 140 through the controller 160 to control the connection state of the first power supply 110 and the second power supply 130 with multiple different types of electrical loads, that is, selects the first power supply 110 or the second power supply 130 to supply power to the electrical loads, ensuring reliable power supply to the electrical loads, thereby ensuring the safety of the vehicle.

[0059] In one embodiment of the present invention, the controller 160 is configured to: when the first power supply 110 is not faulty, control the first switch module 120 to be turned on, and control the second switch module 140 to be turned off, so that the first power supply 110 remains connected to multiple different types of electrical loads, and the second power supply 130 is disconnected from the multiple different types of electrical loads, so that power is supplied to multiple different types of electrical loads through the first power supply 110; when the first power supply 110 fails, control the first switch module 120 to be turned off, and control the second switch module 140 to be turned on, so that the first power supply 110 is disconnected from multiple different types of electrical loads, and the second power supply 130 remains connected to the multiple different types of electrical loads, so that power is supplied to multiple different types of electrical loads through the second power supply 130.

[0060] In a specific embodiment, the first power supply 110 includes, for example, but is not limited to, a vehicle's power battery and a DC / DC converter. The first power supply 110 serves as a primary power source, and the second power supply 130 includes, for example, but is not limited to, a vehicle's storage battery. The second power supply 130 serves as an auxiliary power source. When the first power supply 110 is not faulty, the controller 160 controls the first switch module 120 to conduct and the second switch module 140 to disconnect, so that the first power supply 110 remains connected to multiple different types of electrical loads and the second power supply 130 is disconnected from the multiple different types of electrical loads, thereby allowing the first power supply 110 to supply power to the multiple different types of electrical loads. When the first power supply 110 fails, the controller 160 controls the first switch module 120 to disconnect and the second switch module 140 to conduct, so that the first power supply 110 remains connected to the multiple different types of electrical loads and the second power supply 130 remains connected to the multiple different types of electrical loads, thereby allowing the second power supply 130 to supply power to the multiple different types of electrical loads.

[0061] Therefore, the power supply device 100 uses the controller 160 to preferentially control the first power supply 110 to supply power to the electrical load. When the first power supply 110 cannot supply power to the electrical load due to a short circuit or other faults, the power supply device 100 uses the controller 160 to control the second power supply 130 to supply power to the electrical load, thereby ensuring reliable power supply to the electrical load, thereby ensuring the safety of the vehicle.

[0062] In one embodiment of the present invention, the first power supply 110 includes: a plurality of voltage output ports, and the plurality of voltage output ports are configured to output a plurality of first direct currents with different voltage values in a one-to-one correspondence.

[0063] Specifically, the first power supply 110 is provided with a plurality of voltage output ports, each voltage output port corresponding to the output of a first direct current with a different voltage value, so that different types of electrical loads only need to be connected to the voltage output port corresponding to the required working voltage to meet the working voltage requirements of different types of electrical loads; thus, the power supply device 100 can effectively avoid the problem that the existing voltage platform cannot simultaneously meet the different voltage requirements of multiple electrical appliances in the vehicle. The vehicle only needs to be equipped with one such power supply device 100 to provide corresponding working voltages for multiple different types of electrical loads to meet the working voltage requirements of different types of electrical loads, and is highly practical.

[0064] In one embodiment of the present invention, the first switch module 120 includes: multiple first switch units, one end of the multiple first switch units corresponds to multiple voltage output units, and the other end of the multiple first switch units corresponds to multiple different types of electrical loads.

[0065] Specifically, the first switch module 120 includes multiple first switch units, and the multiple first switch units correspond one-to-one to multiple electrical loads. By controlling the on-off status of the multiple first switch units in the first switch module 120, the connection status of the corresponding different types of electrical loads and the first power supply 110 can be controlled, that is, the on-off status of multiple different types of electrical loads can be controlled.

[0066] At the same time, the multiple first switch units in the first switch module 120 connect the first power supply 110 and multiple different types of electrical loads, and control the connection status of the corresponding different types of electrical loads with the first power supply 110. They can also play a role in protecting the circuit. When a certain electrical load is short-circuited or other types of faults occur, the corresponding first switch unit in the first switch module 120 is disconnected in time to ensure the safety of the first power supply 110.

[0067] In one embodiment of the present invention, the first switch unit includes at least one first switch tube.

[0068] Specifically, each first switch unit includes at least one first switch tube. When all the first switch tubes contained in the first switch unit are turned on, the first switch unit is turned on, and the first power supply 110 supplies power to the corresponding different types of electrical loads. When any one of the first switch tubes contained in the first switch unit is turned off, the first switch unit is turned off, and the first power supply 110 no longer supplies power to the corresponding different types of electrical loads.

[0069] Therefore, the first switch module 120 includes multiple first switch units, and the multiple first switch units correspond one-to-one to multiple electrical loads. The first switch unit includes at least one first switch tube. By controlling the on-off state of the first switch tube in the multiple first switch units, the connection state of the corresponding different types of electrical loads and the first power supply 110 can be controlled, that is, the on-off state of multiple different types of electrical loads can be controlled.

[0070] At the same time, the multiple first switch units in the first switch module 120 connect the first power supply 110 and multiple different types of electrical loads, and control the connection status of the corresponding different types of electrical loads with the first power supply 110. They can also play a role in protecting the circuit. When a certain electrical load is short-circuited or other types of faults occur, the first switch tube in the corresponding first switch unit is disconnected in time to ensure the safety of the first power supply 110.

[0071] In one embodiment of the present invention, one end of the second switch module 140 is connected to the second power supply 130, the other end of the second switch module 140 is connected to the first target electrical load, and the other end of the second switch module 140 is also connected to the second target electrical load through the boost module 150.

[0072] Specifically, one end of the second switch module 140 is connected to the second power supply 130, the other end of the second switch module 140 is connected to the first target electrical load, and the other end of the second switch is also connected to the second target electrical load through the boost module 150. By controlling the on-off state of the second switch module 140, not only the connection state of the second power supply 130 and the first target electrical load can be controlled, but also the connection state of the second power supply 130, the boost module 150 and the second target electrical load can be controlled, that is, the on-off state of multiple different types of electrical loads can be controlled.

[0073] At the same time, the second switch module 140 controls the on and off status of multiple different types of electrical loads, and can also play a role in protecting the circuit. When the first target electrical load or the second target electrical load is short-circuited or other types of faults occur, the second switch module 140 is disconnected in time to ensure the safety of the second power supply 130.

[0074] In one embodiment of the present invention, the second switch module 140 includes at least one second switch tube.

[0075] In a specific embodiment, the second switch module 140 includes two second switch tubes, one of which is connected to the second power supply 130 and the first target electrical load, and the other is connected to the second power supply 130 and the boost module 150. By controlling the on-off state of one of the second switch tubes, the connection state of the second power supply 130 and the first target electrical load can be controlled. By controlling the on-off state of the other second switch tube, the connection state of the second power supply 130 and the boost module 150 and the second target electrical load can be controlled, thereby controlling the on-off state of multiple different types of electrical loads.

[0076] Specifically, when one of the second switching tubes is turned on, the second power supply 130 supplies power to the first target electrical load; when one of the second switching tubes is turned off, the second power supply 130 no longer supplies power to the first target electrical load; when the other second switching tube is turned on, the second power supply 130 supplies power to the second target electrical load after being boosted by the boost module 150; when the other second switching tube is turned off, the second power supply 130 no longer supplies power to the second target electrical load after being boosted by the boost module 150.

[0077] Therefore, the second switch module 140 includes at least one second switch tube. By controlling the on-off state of at least one second switch tube, the connection state of the first target power load and the second target power load with the second power supply 130 can be controlled, that is, the on-off state of multiple different types of power loads can be controlled.

[0078] At the same time, at least one second switch tube in the second switch module 140 connects the second power supply 130 with the first target power load and the second target power load, and controls the connection status of the first target power load and the second target power load with the second power supply 130. It can also play a role in protecting the circuit. When the first target power load or the second target power load is short-circuited or other types of faults occur, the corresponding second switch tube is disconnected in time to ensure the safety of the second power supply 130.

[0079] In one embodiment of the present invention, the boost module 150 includes a diode, an anode of the diode is connected to the other end of the second switch module 140 , and a cathode of the diode is connected to the second target electrical load.

[0080] Specifically, by directly providing a diode between the second switch module 140 and the second target electrical load, with the anode of the diode connected to the other end of the second switch module 140 and the cathode of the diode connected to the second target electrical load, the current can flow from the second power supply 130 to the second switch module 140, and will not flow from the first power supply 110 to the second power supply 130, thereby ensuring the safety of the second power supply 130 and the vehicle.

[0081] Figure 7 This is a schematic diagram of the structure of a power supply device according to a specific embodiment of the present utility model. Figure 7 In the specific embodiment shown, the first power supply 110 includes: a first power supply and a power supply device. The first power supply is the vehicle's power battery. The power supply device is a DC / DC converter. The DC / DC converter converts the high voltage output by the vehicle's power battery into 12V and 24V low-voltage direct current. The second power supply 130 is a 12V battery. The boost module 150 converts the 12V output of the battery into 24V low-voltage direct current. The power load includes an EPS (Electric Power Steering) with a working voltage of 24V, a fan, and a PEU (Power Electronics Unit) with a working voltage of 12V, a BMS (Battery Management System), a BSC (Braking Safety Control System), a CCU (Clutch Control Unit), an intelligent cockpit domain control, an intelligent driving domain control, and an airbag controller.

[0082] In this specific embodiment, when the DC / DC operates normally, the DC / DC outputs two power supplies of 24V and 12V. The first switch module 120 connects to the DC / DC and disconnects the branch circuit to isolate the battery, thereby protecting the circuit.

[0083] When the DC / DC fails, the second switch module 140 connects the 12V battery and the boost module 150, the first switch module 120 isolates the DCDC, the 12V battery supplies power to the entire vehicle, and the boost module 150 boosts 12V to 24V to distribute power to 24V electrical appliances.

[0084] Therefore, the power supply device has two voltage inputs and outputs, 12V and 24V, and has multi-voltage power distribution capabilities. At the same time, the two voltages are independently distributed, and the boost module can increase 12V to 24V to ensure the 24V vehicle power distribution function for electrical appliances when DCDC fails.

[0085] In summary, the power supply device 100 utilizes the first power supply 110 to output a plurality of first direct currents with different voltage values, thereby being able to provide corresponding working voltages for a plurality of different types of electrical loads to meet the working voltage requirements of different types of electrical loads; thus, the power supply device 100 can effectively avoid the problem that the existing voltage platform cannot simultaneously meet the different voltage requirements of a plurality of electrical appliances in the vehicle. The vehicle only needs to be equipped with one such power supply device 100 to provide corresponding working voltages for a plurality of different types of electrical loads to meet the working voltage requirements of different types of electrical loads, and is highly practical.

[0086] Another embodiment of the present invention further provides a vehicle, which includes the power supply device described in the above embodiment of the present invention.

[0087] In a specific embodiment, the vehicle includes but is not limited to an electric vehicle, a hybrid vehicle, etc., and the vehicle uses the above-mentioned power supply device to supply power to the electrical appliances of the vehicle.

[0088] The specific implementation method of the vehicle is similar to the specific implementation method of the above-mentioned power supply device. Therefore, the specific implementation details of the vehicle can be found in the above-mentioned specific implementation method part of the power supply device. To reduce redundancy, it will not be repeated here.

[0089] According to the vehicle of the embodiment of the present invention, the power supply device it includes utilizes a first power supply to output a plurality of first direct currents of different voltage values, thereby being able to provide corresponding working voltages for a plurality of different types of electrical loads to meet the working voltage requirements of the different types of electrical loads; thereby, the power supply device can effectively avoid the problem that the existing voltage platform cannot simultaneously meet the different voltage requirements of a plurality of electrical appliances in the vehicle; the vehicle only needs to be equipped with one such power supply device to provide corresponding working voltages for a plurality of different types of electrical loads to meet the working voltage requirements of the different types of electrical loads, and the practicality is high.

[0090] In addition, other structures and functions of the vehicle according to the above embodiments of the present invention are well known to ordinary technicians in this field and will not be described in detail to reduce redundancy.

[0091] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0092] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0093] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A power supply device, characterized in that: include: A first power supply, comprising a first power supply and a power supply device, wherein the power supply device is connected to a plurality of different types of electrical loads, and the power supply device is configured to convert the electrical energy output by the first power supply into a first direct current of a plurality of different voltage values, so as to provide a one-to-one operating voltage for the plurality of different types of electrical loads, wherein different types of electrical loads require different operating voltages.

2. The power supply device according to claim 1, characterized in that: Also includes: The first switch module is connected between the first power supply and a plurality of different types of electrical loads, and is used to control the connection status of the first power supply and the plurality of different types of electrical loads by turning on and off itself.

3. The power supply device according to claim 2, characterized in that: Also includes: A second power supply, the second power supply is connected to multiple different types of electrical loads, the second power supply can output a second direct current with a first preset voltage value to supply power to a first target electrical load among the multiple different types of electrical loads, wherein the operating voltage required by the first target electrical load is adapted to the voltage of the second direct current.

4. The power supply device according to claim 3, characterized in that: Also includes: The second switch module is connected between the second power supply and a plurality of different types of electrical loads, and is used to control the connection status of the second power supply and the plurality of different types of electrical loads by turning on and off itself.

5. The power supply device according to claim 4, characterized in that: Also includes: A boost module is connected between the second switch module and multiple different types of electrical loads, and is used to boost the voltage of the second direct current to different degrees, outputting a third direct current with multiple different voltage values to supply power to a second target electrical load among the multiple different types of electrical loads, wherein the operating voltage required by the second target electrical load is compatible with the voltage of the third direct current.

6. The power supply device according to claim 4, characterized in that: Also includes: A controller, configured to control the on / off states of the first switch module and the second switch module, and configured to: When the first power supply is not faulty, controlling the first switch module to be turned on and controlling the second switch module to be turned off, so that the first power supply remains connected to the multiple different types of electrical loads, and the second power supply is disconnected from the multiple different types of electrical loads, so that the multiple different types of electrical loads are supplied with power through the first power supply; When the first power supply fails, the first switch module is controlled to be disconnected, and the second switch module is controlled to be turned on, so that the first power supply is disconnected from the multiple different types of electrical loads, and the second power supply remains connected to the multiple different types of electrical loads, so that the multiple different types of electrical loads are powered by the second power supply.

7. The power supply device according to claim 2, characterized in that: The first power supply includes: a plurality of voltage output ports, and the plurality of voltage output ports are used to output a plurality of first direct currents with different voltage values in a one-to-one correspondence.

8. The power supply device according to claim 5, characterized in that: One end of the second switch module is connected to the second power supply, the other end of the second switch module is connected to the first target electrical load, and the other end of the second switch module is further connected to the second target electrical load through the boost module.

9. The power supply device according to claim 8, characterized in that: The boost module includes a diode, an anode of the diode is connected to the other end of the second switch module, and a cathode of the diode is connected to the second target electrical load.

10. A vehicle, characterized in that: The invention comprises a power supply device according to any one of claims 1 to 9.

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