Vehicle-mounted power supply
By dividing the power components of the vehicle power supply into a main power board and a secondary power board, and placing the secondary power board and filter components on one side of the main power board, combined with water cooling and terminal optimization, the problem of low energy density of the vehicle power supply is solved, achieving higher power density and smaller size.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- SHINRY E CONTROLS CO LTD
- Filing Date
- 2025-01-17
- Publication Date
- 2026-07-23
AI Technical Summary
Existing vehicle power supplies have low energy density and large size, making it difficult to meet the higher power density requirements of electric vehicles.
The power components of the vehicle power supply are divided into a main power board and a secondary power board. The secondary power board and the filter components are placed on one side of the main power board to reduce the area of the power components. At the same time, water channels are used for heat dissipation, and the terminals and their arrangement are optimized.
Without increasing the thickness of the vehicle power supply, the overall volume was reduced, the power density was increased, and the heat dissipation effect and space utilization were improved.
Smart Images
Figure CN2025073146_23072026_PF_FP_ABST
Abstract
Description
Car power supply Technical Field
[0001] This application belongs to the field of power supply technology, specifically relating to vehicle power supplies. Background Technology
[0002] On-board power supplies are an important component of electric vehicles, primarily used for voltage conversion within the vehicle, such as converting alternating current (AC) to direct current (DC) or high-voltage electricity to low-voltage electricity. However, current on-board power supplies have relatively low energy density and large size. Summary of the Invention
[0003] In view of this, a first aspect of this application provides an on-board power supply, the on-board power supply including a housing, a cover, a filter assembly, and a power assembly. The housing and the cover form a receiving space, and the filter assembly and the power assembly are disposed within the receiving space. The power assembly includes a main power board and a secondary power board, the thickness direction of the main power board being perpendicular to the thickness direction of the secondary power board, and the secondary power board and the filter assembly being disposed on one side of the main power board. The filter assembly has a top surface facing the cover, a bottom surface facing away from the cover, and a side surface bent to connect the top surface and the bottom surface. The secondary power board is disposed on the side of the filter assembly, and the thickness direction of the secondary power board is perpendicular to the thickness direction of the filter assembly. The main power board is electrically connected to the filter assembly and the secondary power board.
[0004] The vehicle power supply provided in the first aspect of this application divides the power components into a main power board and a secondary power board. The secondary power board and the filter assembly are disposed on the same side of the main power board, and the secondary power board is disposed on the side of the filter assembly. Without affecting the overall thickness of the vehicle power supply, the area of the main power board is reduced, thereby further reducing the overall volume of the vehicle power supply and increasing the power density of the vehicle power supply.
[0005] The power component includes multiple sub-power boards, which are divided into at least one first sub-power board and at least one second sub-power board. The at least one first sub-power board and the at least one second sub-power board are arranged opposite each other along the thickness direction of the sub-power board.
[0006] The vehicle power supply also includes a water channel disposed within the housing. The water channel comprises an inlet, a bend, and an outlet. The inlet and outlet are bend-connected to the bend, and are located on the same side of the bend. The power assembly includes multiple sub-power boards, which are divided into at least one first sub-power board and at least one second sub-power board. The at least one first sub-power board is disposed on the outer wall of the inlet, and the at least one second sub-power board is disposed on the outer wall of the outlet.
[0007] The vehicle power supply also includes a clamping assembly, which includes a clamping part and a fixing part. The fixing part is bent and connected to the clamping part and fixed to the water channel. The clamping part is located on the side of the secondary power board away from the water channel and abuts against the secondary power board so that the secondary power board abuts against the water channel.
[0008] The vehicle power supply also includes an input terminal, an output terminal, a water inlet, and a water outlet. The water inlet and the water outlet are located at one end of the housing and are connected to the water channel. The input terminal and the output terminal are located at the end of the housing opposite to the water inlet and the water outlet.
[0009] The vehicle power supply also includes a signal terminal and a low-voltage output terminal. The signal terminal and the low-voltage output terminal are arranged along the arrangement direction of the housing and the cover plate. The distance between the signal terminal and the input terminal is greater than or less than the distance between the low-voltage output terminal and the input terminal.
[0010] The filtering component includes an input filtering module and an output filtering module, wherein the distance between the input filtering module and the main power board is equal to the distance between the output filtering module and the main power board.
[0011] The input filtering module includes a first filter board, a second filter board, and a third filter board. The second filter board is disposed between the first filter board and the third filter board. The thickness direction of the first filter board is the same as that of the second filter board, and the thickness direction of the third filter board is perpendicular to that of the second filter board. The second filter board is electrically connected to the first filter board and the third filter board.
[0012] The vehicle power supply also includes a heat dissipation component, which includes a heat dissipation plate disposed on one side of the sub-power board. The heat dissipation plate includes a first heat dissipation layer, a second heat dissipation layer, and a third heat dissipation layer stacked together. The thermal conductivity of the first heat dissipation layer and the thermal conductivity of the third heat dissipation layer are greater than the thermal conductivity of the second heat dissipation layer.
[0013] The vehicle power supply includes a first set of electrolytic capacitors and a second set of electrolytic capacitors, with the first set of electrolytic capacitors located on one side of the waterway and the second set of electrolytic capacitors located on the other side of the waterway.
[0014] The vehicle power supply also includes an inverter component, which is located within the filter component.
[0015] The vehicle power supply also includes an input terminal, which is electrically connected to the filter assembly. The input terminal includes an AC input terminal and an inverter terminal. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 is a three-dimensional structural diagram of the vehicle power supply in one embodiment of this application.
[0018] Figure 2 is a front view of the vehicle power supply shown in Figure 1.
[0019] Figure 3 is an exploded view of the vehicle power supply shown in Figure 1.
[0020] Figure 4 is a top view of the vehicle power supply with the cover and main power board removed as shown in Figure 1.
[0021] Figure 5 is a schematic diagram of the main power board, the secondary power board, and the filter components working together in one embodiment of this application.
[0022] Figure 6 is an exploded view of the main power board, sub-power board, and filter components shown in Figure 5.
[0023] Figure 7 is an exploded view of the filter component and the sub-power board in one embodiment of this application.
[0024] Figure 8 is an exploded view of the sub-power board and the housing in one embodiment of this application.
[0025] Figure 9 is a top view of the housing in one embodiment of this application.
[0026] Figure 10 is a three-dimensional structural diagram of the input filtering module in one embodiment of this application.
[0027] Figure 11 is a three-dimensional structural diagram of the output filter module in one embodiment of this application.
[0028] Figure 12 is a three-dimensional structural diagram of the clamping component in one embodiment of this application.
[0029] Figure 13 is an exploded view of a clamping component according to an embodiment of this application.
[0030] Figure 14 is a cross-sectional schematic diagram of the clamping component, the secondary power board, and the water channel in one embodiment of this application.
[0031] Figure 15 is a front view of the input filter module shown in Figure 10.
[0032] Figure 16 is a three-dimensional structural diagram of the connecting component in one embodiment of this application.
[0033] Figure 17 is a three-dimensional structural diagram of a heat dissipation component according to one embodiment of this application.
[0034] Figure 18 is an exploded view of the heat dissipation assembly shown in Figure 17.
[0035] Figure 19 is a three-dimensional structural diagram of the sub-power board and heat dissipation assembly in one embodiment of this application.
[0036] Figure 20 is an exploded view of the sub-power board and heat dissipation assembly in one embodiment of this application.
[0037] Figure 21 is a schematic diagram of the input terminal in one embodiment of this application.
[0038] Figure 22 is a three-dimensional structural diagram of the input terminal shown in Figure 21.
[0039] Explanation of reference numerals in the attached diagram: Vehicle power supply - 1, Power assembly - 10, Main power board - 11, Secondary power board - 12, PFC power board - 121, DAB primary power board - 122, DAB secondary power board - 123, LV DC / DC primary power board - 124, Board body - 125, Transistor - 126, Magnetic component - 13, Input terminal - 14, AC input terminal - 141, Inverter terminal - 142, Input pin - 143, Output terminal - 15, Signal terminal - 16, Low-voltage output terminal - 17, Connection terminal - 18, Filter assembly - 20, Input filter module - 21, First filter board - 211, Second filter board - 212, Third filter board - 213, Output filter module - 22, Connection assembly - 25, Varistor - 26, Shielding component - 28, Housing - 30, Cover plate - 40, Water channel - 50, Water inlet - 51, Water outlet - 52, Connecting part - 53, Water inlet - 54, Water outlet - 55, First potting area - 56, Second potting area - 57, Third potting area - 58, Clamping assembly - 60, Clamping part - 61, Fixing part - 62, Elastic part - 63, Heat dissipation assembly - 70, Heat dissipation plate - 71, First heat dissipation layer - 711, Second heat dissipation layer - 712, Third heat dissipation layer - 713. Detailed Implementation
[0040] The following are preferred embodiments of this application. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of this application, and these improvements and modifications are also considered to be within the scope of protection of this application.
[0041] Before introducing the technical solution provided in this application, let's go over the technical issues in related technologies in detail.
[0042] On-board power supplies (OBCs) are a crucial component of electric vehicles, primarily used for converting current and voltage within the vehicle, such as converting alternating current (AC) to direct current (DC) or high-voltage electricity to low-voltage electricity. With the rapid development of electric vehicles, the size of various components within these vehicles must be gradually reduced to maximize interior passenger and storage space. This necessitates optimizing the structural layout and innovating the design of on-board power supplies to achieve higher power density.
[0043] However, current automotive power supplies typically use a single circuit board for both the filter and power boards, and these boards are often stacked. This results in a large area for the filter and power boards, leading to low space utilization and making it difficult to increase the power density of the automotive power supply. Current automotive power supply density is typically 3.5–4 kW / L, but in recent years, automakers have demanded that the power density of automotive power supplies be increased to 4.5–5 kW / L.
[0044] In view of this, in order to solve the above problems, this application provides an on-board power supply. Please refer to Figures 1-6 together. Figure 1 is a three-dimensional structural schematic diagram of the on-board power supply according to an embodiment of this application. Figure 2 is a front view of the on-board power supply shown in Figure 1. Figure 3 is an exploded view of the on-board power supply shown in Figure 1. Figure 4 is a top view of the on-board power supply shown in Figure 1 with the cover plate and main power board removed. Figure 5 is a schematic diagram of the main power board, sub-power board, and filter components cooperating in an embodiment of this application. Figure 6 is an exploded schematic diagram of the main power board, sub-power board, and filter components shown in Figure 5.
[0045] The vehicle power supply 1 provided in this embodiment includes a housing 30, a cover plate 40, a filter assembly 20, and a power assembly 10. The housing 30 and the cover plate 40 enclose a receiving space, and the filter assembly 20 and the power assembly 10 are disposed within the receiving space. The power assembly 10 includes a main power board 11 and a secondary power board 12. The thickness direction of the main power board 11 is perpendicular to the thickness direction of the secondary power board 12. The secondary power board 12 and the filter assembly 20 are disposed on one side of the main power board 11. The filter assembly 20 has a top surface facing the cover plate 40, a bottom surface away from the cover plate 40, and a side surface that bends to connect the top surface and the bottom surface. The secondary power board 12 is disposed on the side surface of the filter assembly 20, and the thickness direction of the secondary power board 12 is perpendicular to the thickness direction of the filter assembly 20. The main power board 11 is electrically connected to the filter assembly 20 and the secondary power board 12.
[0046] The vehicle power supply 1 provided in this embodiment is mainly used in electric vehicles. The vehicle power supply 1 is installed in the circuit of the electric vehicle to realize voltage or current changes. For example, it can convert high voltage to low voltage or AC to DC.
[0047] The vehicle power supply 1 mainly includes a housing 30, a cover plate 40, a filter assembly 20, and a power assembly 10. The housing 30 is used to house various components of the vehicle power supply 1, and the cover plate 40 is located on one side of the housing 30 to seal the housing 30. The cover plate 40 and the housing 30 together form a receiving space, within which the filter assembly 20, the power assembly 10, and other various components are housed.
[0048] The power component 10 is used to receive and transmit relevant signals from the vehicle, and to transform the voltage and current passing through the vehicle power supply 1 according to the signals. The power component 10 includes a main power board 11 and a secondary power board 12. The main power board 11 processes the information transmitted to the vehicle power supply 1 and also processes information within the vehicle power supply 1, essentially acting as the "brain" of the vehicle power supply 1. The secondary power board 12 is used to mount transistors 126, thereby forming a voltage and current transformation circuit together with the main power board 11. The thickness direction of the main power board 11 is perpendicular to the thickness direction of the secondary power board 12. It is worth noting that the thickness direction refers to the direction of the smaller of the length, width, and height dimensions of the component. For example, the thickness direction of the main power board 11 is the Z direction in Figure 6, and the thickness direction of the secondary power board 12 is the Y direction in Figure 6. Furthermore, in this embodiment, "perpendicular" means that the included angle is a right angle or approximately a right angle, and approximately a right angle means that the included angle is greater than or equal to 80° and less than 90°.
[0049] The filter component 20 is used to filter electromagnetic interference signals in the circuit and is mainly located after the input terminal and before the output terminal of the circuit. The sub-power board 12 and the filter component 20 are located on one side of the main power board 11. In other words, the main power board 11 has a top surface and a bottom surface that are arranged opposite each other, and the sub-power board 12 and the filter component 20 are both located on the top surface of the main power board 11, or the sub-power board 12 and the filter component 20 are both located on the bottom surface of the main power board 11. Specifically, in this embodiment, both the sub-power board 12 and the filter component 20 are located on the bottom surface of the main power board 11, that is, both the sub-power board 12 and the filter component 20 are located below the main power board 11.
[0050] The filter assembly 20 has a top surface facing the cover plate 40, a bottom surface facing away from the cover plate 40, and a side surface that bends to connect the top and bottom surfaces. Specifically, in this embodiment, the filter assembly 20 is disposed below the main power board 11, that is, the side of the filter assembly 20 facing the main power board 11 is the top surface of the filter assembly 20, the side facing away from the main power board 11 is the bottom surface of the filter assembly 20, and the side surface connecting the top and bottom surfaces is the side surface of the filter assembly 20.
[0051] The secondary power board 12 is located on the side of the filter assembly 20; in other words, the secondary power board 12 is not located between the filter assembly 20 and the main power board 11. Furthermore, the secondary power board 12 is not located on the side of the filter assembly 20 away from the main power board 11; that is, the secondary power board 12 is arranged parallel to the filter assembly 20 on one side of the main power board 11. The thickness direction of the secondary power board 12 is perpendicular to the thickness direction of the filter assembly 20, which is the Y-direction in Figure 6, while the thickness direction of the filter assembly 20 is the Z-direction in Figure 6. In other words, the secondary power board 12 is arranged perpendicularly or approximately perpendicularly to the filter assembly 20. From the above, it can be seen that the secondary power board 12 is also arranged perpendicularly or approximately perpendicularly to the main power board 11, meaning that the filter assembly 20 and the main power board 11 are stacked parallel or approximately parallel.
[0052] The main power board 11 is electrically connected to the filter assembly 20 and the sub-power board 12. Specifically, in this embodiment, both the filter assembly 20 and the sub-power board 12 have connection terminals 18 on the side facing the main power board 11. The main power board 11 and the sub-power board 12, as well as the main power board 11 and the filter assembly 20, are electrically connected through the connection terminals 18. The main power board 11 controls the filter assembly 20 and the sub-power board 12 to perform a series of functions by electrically connecting them.
[0053] In related technologies, the power board is a single piece, resulting in a large area and consequently a large overall volume and low energy density of the vehicle power supply 1. In this embodiment, the power component 10 is divided into a main power board 11 and a secondary power board 12. The secondary power board 12 and the filter component 20 are disposed on the same side of the main power board 11, and the secondary power board 12 is disposed on the side of the filter component 20. This reduces the area occupied by the power component 10, thereby further reducing the overall volume of the vehicle power supply 1. Simultaneously, by placing the secondary power board 12 on the side of the filter component 20, the area of the power component 10 is expanded without increasing the thickness of the vehicle power supply 1, resulting in a higher energy density.
[0054] Optionally, the side of the filter assembly 20 facing the main power board 11 also includes a shield 28, which is used to reduce the mutual influence caused by electromagnetic interference generated by the main power board 11 and the filter assembly 20 during operation.
[0055] Optionally, the secondary power board 12 includes a circuit board and a transistor 126, wherein the transistor 126 can be packaged as a surface mount device (SMD) and mounted to the circuit board. The transistor 126 also adopts an L-shaped contact spring design, reducing the space occupied by the transistor 126.
[0056] Alternatively, the circuit board inside the vehicle power supply 1 may include, but is not limited to, embedded copper plates, aluminum substrates, etc., so that the heat generated by the transistor 126 can be better transferred to the water channel 50.
[0057] Optionally, after the various components inside the vehicle power supply 1 are assembled, the entire containment space can be vacuum-sealed with thermally conductive adhesive, thereby improving the overall heat dissipation of the vehicle power supply 1.
[0058] Please refer to Figures 4-7. Figure 7 is an exploded view of the filter component and the sub-power board in one embodiment of this application. In this embodiment, the filter component 20 has a clearance hole 24 along its thickness direction at its edge, and the sub-power board 12 is inserted into the clearance hole 24 so that the sub-power board 12 passes through the filter component 20.
[0059] The filter assembly 20 has clearance holes 24 along its thickness direction on its edge. In other words, the edge of the filter assembly 20 facing the sub-power board 12 has an open clearance hole 24, which penetrates the top and bottom surfaces of the filter assembly 20. The sub-power board 12 is inserted into the clearance hole 24 so that the sub-power board 12 penetrates the filter assembly 20. In other words, the sub-power board 12 is disposed in the clearance hole 24 on the edge of the filter assembly 20 facing the sub-power board 12, thereby allowing the filter assembly 20 to provide a certain space for the sub-power board 12. At the same time, the sub-power board 12 penetrates the filter assembly 20, that is, the sub-power board 12 protrudes from the top and bottom surfaces of the filter assembly 20, meaning that the filter assembly 20 does not obstruct the sub-power board 12.
[0060] As can be seen from the above, the secondary power board 12 is disposed on the side of the filter assembly 20. Based on this, in this embodiment, the secondary power board 12 can be disposed within the clearance hole 24 on the side of the filter assembly 20 facing the secondary power board 12, and the secondary power board 12 protrudes from the top and bottom surfaces of the filter assembly 20. This makes the width of the vehicle power supply 1 in the arrangement direction of the filter assembly 20 and the secondary power board 12 smaller, which is beneficial to improving the power density of the vehicle power supply 1. At the same time, the secondary power board 12 protrudes from the filter assembly 20, so that the filter assembly 20 will not affect the electrical connection between the secondary power board 12 and the main power board 11.
[0061] Please refer to Figures 4-8. Figure 8 is an exploded view of the sub-power board and the housing in one embodiment of this application. In this embodiment, the power assembly 10 includes a plurality of sub-power boards 12. The plurality of sub-power boards 12 are divided into at least one first sub-power board 12 and at least one second sub-power board 12. The at least one first sub-power board 12 and the at least one second sub-power board 12 are arranged opposite to each other along the thickness direction of the sub-power board 12.
[0062] The power assembly 10 includes a plurality of sub-power boards 12; in other words, the power assembly 10 includes at least two sub-power boards 12. The plurality of sub-power boards 12 are divided into at least one first sub-power board 12 and at least one second sub-power board 12, meaning the plurality of sub-power boards 12 are divided into two groups. One group includes one or more first sub-power boards 12, and the other group includes one or more second sub-power boards 12. At least one first sub-power board 12 and at least one second sub-power board 12 are arranged opposite each other along the thickness direction of the sub-power boards 12. In other words, the first sub-power boards 12 and the second sub-power boards 12 are not arranged in a single row, but in two rows. The first group of sub-power boards 12 (i.e., the first sub-power board 12) and the second group of sub-power boards 12 (i.e., the second sub-power board 12) are arranged at positions such that the thickness direction of the plurality of sub-power boards 12 is the same. It is worth noting that the thickness direction of the sub-power boards 12 is the Y-direction shown in Figure 6.
[0063] Specifically, this embodiment may include four sub-power boards 12, namely a power factor correction board (PFC power board 121), a dual active bridge primary-side board (DAB primary-side power board 122), a dual active bridge secondary-side board (DAB secondary-side power board 123), and a low-voltage DC to high-voltage DC primary-side board (LV DC / DC primary-side power board 124). The PFC circuit is mainly used to control the waveform of the input current, synchronizing it with the waveform of the input voltage, improving the power factor, and reducing harmonic content. The DAB circuit consists of two full-bridge converters (i.e., H-bridges) magnetically coupled through transformers. These H-bridge circuits achieve electrical isolation and energy transfer through transformers. The LV DC / DC circuit is mainly used to convert low-voltage DC to high-voltage DC. The power factor correction board is the first group of sub-power boards 12, i.e., the first sub-power board 12. The dual active bridge primary-side board, the dual active bridge secondary-side board, and the low-voltage DC to high-voltage DC primary-side board constitute the second group of sub-power boards 12, i.e., the second sub-power board 12.
[0064] In summary, this embodiment places the first auxiliary power board 12 on one side of the bottom surface of the main power board 11, and the second auxiliary power board 12 on the other side of the bottom surface of the main power board 11. Furthermore, the first and second auxiliary power boards 12 are arranged opposite to each other, meaning the extending directions of the first and second auxiliary power boards 12 are the same. This reduces the length of the wiring when the auxiliary power boards 12 are electrically connected to the main power board 11, resulting in simpler wiring on the main power board 11, a smaller size of the main power board 11, and an increased power density of the vehicle power supply 1.
[0065] Please refer to Figures 3-4 and 8-9, where Figure 9 is a top view of the housing in one embodiment of this application. In this embodiment, the vehicle power supply 1 further includes a water channel 50, which is disposed within the housing 30, and the auxiliary power board 12 is disposed on the outer wall of the water channel 50.
[0066] The vehicle power supply 1 also includes a water channel 50, which is used for heat dissipation of various components inside the vehicle power supply 1. The water channel 50 is disposed within the housing 30, that is, the housing 30 is disposed within the receiving space. Specifically, in this embodiment, the water channel 50 may be disposed on the bottom surface of the housing 30 directly opposite the cover plate 40. The secondary power board 12 is disposed on the outer wall of the water channel 50, that is, the secondary power board 12 abuts against the side wall of the water channel 50. The secondary power board 12 has multiple transistors, which dissipate a large amount of heat when operating, causing the temperature of the secondary power board 12 to rise. In this embodiment, by disposing of the secondary power board 12 on the side wall of the water channel 50, abutting against the water channel 50, the heat dissipation performance of the secondary power board 12 is improved, which helps to reduce the operating temperature of the secondary power board 12.
[0067] Optionally, the connection between the secondary power board 12 and the water channel 50 includes, but is not limited to, bonding, screw connection, and abutment, which will be described in detail later in this application.
[0068] Please refer to Figures 3-4 and 8-11. Figure 10 is a three-dimensional structural diagram of the input filter module in one embodiment of this application. Figure 11 is a three-dimensional structural diagram of the output filter module in one embodiment of this application. In this embodiment, the water channel 50 includes an inlet 51, a connecting part 53, and an outlet 52. The inlet 51 and the outlet 52 are bent and connected to the connecting part 53, and the inlet 51 and the outlet 52 are located on the same side of the connecting part 53. The power component 10 includes a plurality of sub-power boards 12. The plurality of sub-power boards 12 are divided into at least one first sub-power board 12 and at least one second sub-power board 12. The at least one first sub-power board 12 is disposed on the outer side wall of the inlet 51, and the at least one second sub-power board 12 is disposed on the outer side wall of the outlet 52.
[0069] The waterway 50 includes an inlet section 51, a connecting section 53, and an outlet section 52. The inlet section 51 and the outlet section 52 are bent and connected to the connecting section 53, and the inlet section 51 and the outlet section 52 are located on the same side of the connecting section 53. In other words, the waterway 50 is U-shaped, with the inlet section 51 on one side of the U-shape and the outlet section 52 on the other side. The bottom surface of the U-shape is the connecting section 53 that bends and connects the inlet section 51 and the outlet section 52. One end of the inlet section 51 and one end of the outlet section 52 are both connected to the housing 30, that is, both ends of the U-shape are connected to the same side of the housing 30.
[0070] The power assembly 10 includes a plurality of sub-power boards 12, and the plurality of sub-power boards 12 are divided into at least one first sub-power board 12 and at least one second sub-power board 12. In other words, the plurality of sub-power boards 12 are divided into two groups, one group including one or more first sub-power boards 12, and the other group including one or more second sub-power boards 12. The first sub-power board 12 is disposed on the outer wall of the water inlet 51 of the water channel 50, and the second sub-power board 12 is disposed on the outer wall of the water outlet 52 of the water channel 50. In other words, the first sub-power board 12 is disposed on the left side of the U-shaped water channel 50, and the second sub-power board 12 is disposed on the right side of the U-shaped water channel 50.
[0071] As can be seen from the above, the first auxiliary power board 12 and the second auxiliary power board 12 can be arranged opposite each other and spaced apart, thereby facilitating the wiring of the main power board 11. In this embodiment, the water channel 50 can be arranged in a U-shape, with the first auxiliary power board 12 disposed on the side wall of the water inlet 51 of the water channel 50 and the second auxiliary power board 12 disposed on the side wall of the water outlet 52 of the water channel 50. By placing the auxiliary power board 12 on the side wall of the water channel 50 and also spaced the first auxiliary power board 12 and the second auxiliary power board 12 apart, the assembly difficulty of the vehicle power supply 1 is reduced.
[0072] Optionally, when the waterway 50 is U-shaped, the U-shaped waterway 50 divides the containment space into three parts: a first filling zone 56 on one side of the U-shaped waterway 50, a second filling zone 57 on the other side of the U-shaped waterway 50, and a third filling zone 58 in the middle of the U-shaped waterway 50.
[0073] Optionally, the filter assembly 20 includes an input filter module 21 and an output filter module 22, wherein the input filter module 21 is disposed in the first potting area 56 and the output filter module 22 is disposed in the second potting area 57. The power assembly 10 also includes a magnetic element 13, which is disposed in the third potting area 58. The main power board 11 is disposed between the water channel 50 and the cover plate 40, that is, the main power board 11 is disposed below the cover plate 40 and above all other components.
[0074] Optionally, the output filter module 22, the input filter module 21, the magnetic element 13, and the multiple sub-power boards 12 all have connection terminals 18 on the side facing the main power board 11, and the connection terminals 18 are used for electrical connection with the main power board 11.
[0075] Please refer to Figures 12-14. Figure 12 is a three-dimensional structural diagram of the clamping assembly according to one embodiment of this application. Figure 13 is an exploded view of the clamping assembly according to one embodiment of this application. Figure 14 is a cross-sectional view of the clamping assembly, the secondary power board, and the water channel in one embodiment of this application. In this embodiment, the vehicle power supply 1 further includes a clamping assembly 60, which includes a clamping part 61 and a fixing part 62. The fixing part 62 is bent and connected to the clamping part 61, and the fixing part 62 is fixed to the water channel 50. The clamping part 61 is located on the side of the secondary power board 12 away from the water channel 50, and the clamping part 61 abuts against the secondary power board 12 so that the secondary power board 12 abuts against the water channel 50.
[0076] The vehicle power supply 1 also includes a clamping assembly 60, which includes a clamping part 61 and a fixing part 62. The clamping part 61 abuts against the secondary power plate 12, and the fixing part 62 fixes the clamping assembly 60 to the water channel 50. The fixing part 62 is bent to connect to the clamping part 61. Specifically, in this embodiment, the thickness direction of the fixing part 62 is perpendicular to the thickness direction of the clamping part 61. The fixing part 62 is fixed to the water channel 50. Optionally, the connection between the fixing part 62 and the water channel 50 can be adhesive, threaded connection, or snap-fit. The clamping part 61 is disposed on the side of the secondary power plate 12 away from the water channel 50. In other words, the secondary power plate 12 is disposed between the clamping part 61 and the water channel 50. The clamping part 61 abuts against the secondary power plate 12, thereby causing the secondary power plate 12 to abut against the water channel 50. In other words, the clamping part 61 applies pressure to the secondary power plate 12 toward the water channel 50, thereby making the secondary power plate 12 abut against the water channel 50 and securely fastened in position.
[0077] As can be seen from the above, the secondary power board 12 dissipates heat by being located on the outer wall of the water channel 50. In this embodiment, by providing the clamping component 60, the secondary power board 12 abuts against the side wall of the water channel 50, making the connection between the secondary power board 12 and the water channel 50 more stable and the heat dissipation effect better.
[0078] Please refer again to Figures 12-14. In this embodiment, the clamping assembly 60 further includes an elastic part 63. The elastic part 63 is disposed on the side of the clamping part 61 near the secondary power plate 12, and the elastic part 63 abuts against the secondary power plate 12. The elastic part 63 is in a compressed state.
[0079] The clamping assembly 60 also includes an elastic portion 63, which is disposed on the side of the clamping portion 61 near the secondary power plate 12. In other words, the elastic portion 63 is disposed between the secondary power plate 12 and the clamping portion 61. The elastic portion 63 abuts against the secondary power plate 12, and is in a compressed state when it abuts against the secondary power plate 12. In other words, the elastic portion 63 contacts the secondary power plate 12, and is in a deformed state when it contacts the secondary power plate 12, that is, the elastic portion 63 always provides the secondary power plate 12 with a spring force toward the water channel 50. As can be seen from the above, the secondary power plate 12 is fixed to the side wall of the water channel 50 by the clamping assembly 60. Based on this, this embodiment can further include an elastic portion 63 between the clamping portion 61 and the secondary power plate 12, and the elastic portion 63 always provides the secondary power plate 12 with a spring force toward the water channel 50. This makes the contact between the secondary power plate 12 and the water channel 50 more compact, and the heat dissipation effect is better.
[0080] Please refer to Figure 4 again. In this embodiment, the clamping component 60 is located on the side opposite to the top surface of the filter component 20, and the filter component 20 covers the clamping component 60.
[0081] In this embodiment, the clamping component 60 is located on the side opposite to the top surface of the filter component 20, and the filter component 20 covers the clamping component 60. Specifically, the top surface area of the filter component 20 is larger than the bottom surface area, the clamping component 60 is located on the side of the filter component 20, and the clamping component 60 is located below the top surface of the filter component 20. That is, when viewed from the cover plate 40 towards the bottom surface of the housing 30, the top surface of the filter component 20 covers the clamping component 60. This allows the filter component 20 and the bottom surface of the housing 30 to jointly limit the clamping component 60, thereby reducing the risk of the clamping component 60 falling off.
[0082] Please refer to Figure 9 again. In this embodiment, the vehicle power supply 1 further includes an input terminal 14, an output terminal 15, a water inlet 54, and a water outlet 55. The water inlet 54 and the water outlet 55 are located at one end of the housing 30 and the water inlet 54 and the water outlet 55 are connected to the water channel 50. The input terminal 14 and the output terminal 15 are located at the end of the housing 30 away from the water inlet 54 and the water outlet 55.
[0083] Input terminal 14 is used to connect to high-voltage AC power, typically 220V AC, and output terminal 15 is used to output high-voltage DC power. Inlet 54 and outlet 55 connect to water channel 50 for liquid exchange within the water channel 50. Inlet 54 and outlet 55 are located at one end of housing 30, while input terminal 14 and output terminal 15 are located at the end of housing 30 opposite to inlet 54 and outlet 55. In other words, inlet 54 and outlet 55 are located on the same side of housing 30, while input terminal 14 and output terminal 15 are located on the side of housing 30 away from inlet 54 and outlet 55. This arrangement ensures that inlet 54 and outlet 55 are not on the same side of housing 30 as input terminal 14 and output terminal 15, avoiding overcrowding and increased area on the same side. This allows for a further reduction in the thickness of housing 30, thereby increasing the power density of the vehicle power supply 1.
[0084] Please refer to Figure 2 again. In this embodiment, the vehicle power supply 1 further includes a signal terminal 16 and a low-voltage output terminal 17. The signal terminal 16 and the low-voltage output terminal 17 are arranged along the arrangement direction of the housing 30 and the cover plate 40. The distance between the signal terminal 16 and the input terminal 14 is greater than or less than the distance between the low-voltage output terminal 17 and the input terminal 14.
[0085] As described above, the vehicle power supply 1 has an input terminal 14 and an output terminal 15. In this embodiment, the vehicle power supply 1 also has a signal terminal 16 and a low-voltage output terminal 17. The signal terminal 16 is used to receive electrical signals sent by other components of the vehicle, and the low-voltage output terminal 17 is used to output low-voltage DC power. The signal terminal 16 and the low-voltage output terminal 17 are arranged along the orientation of the housing 30 and the cover plate 40, that is, along the thickness direction of the vehicle power supply 1. In other words, the signal terminal 16 is located at the upper end of the side of the vehicle power supply 1, and the low-voltage output terminal 17 is located at the lower end of the same side.
[0086] Furthermore, the distance between signal terminal 16 and input terminal 14 is either greater than or less than the distance between low-voltage output terminal 17 and input terminal 14; in other words, the distances between signal terminal 16 and low-voltage output terminal 17 and input terminal 14 are not the same. This means that the arrangement direction of signal terminal 16 and low-voltage output terminal 17 is angled to the thickness direction of the vehicle power supply 1, i.e., signal terminal 16 and low-voltage output terminal 17 are staggered. This results in less height occupied by signal terminal 16 and low-voltage output terminal 17 in the thickness direction of the vehicle power supply 1, thereby further reducing the thickness of the vehicle power supply 1 and increasing its power density.
[0087] Please refer again to Figures 3-6 and 10-11. In this embodiment, the filtering component 20 includes an input filtering module 21 and an output filtering module 22. The distance between the input filtering module 21 and the main power board 11 is equal to the distance between the output filtering module 22 and the main power board 11.
[0088] The filtering assembly 20 includes an input filtering module 21 and an output filtering module 22. The input filtering module 21 processes the current input to the vehicle power supply 1, and the output filtering module 22 processes the current output from the vehicle power supply 1. The distance between the input filtering module 21 and the main power board 11 is equal to the distance between the output filtering module 22 and the main power board 11. Specifically, both the input filtering module 21 and the output filtering module 22 are located below the main power board 11. Furthermore, the spacing between the input filtering module 21 and the main power board 11 is the same as the spacing between the output filtering module 22 and the main power board 11, thereby facilitating simultaneous electrical connection of the main power board 11 to both the input filtering board and the output filtering board.
[0089] Please refer to Figures 10 and 15 together. Figure 15 is a front view of the input filtering module shown in Figure 10. In this embodiment, the input filtering module 21 includes a first filter plate 211, a second filter plate 212, and a third filter plate 213. The second filter plate 212 is disposed between the first filter plate 211 and the third filter plate 213. The thickness direction of the first filter plate 211 is the same as the thickness direction of the second filter plate 212, and the thickness direction of the third filter plate 213 is perpendicular to the thickness direction of the second filter plate 212. The second filter plate 212 is electrically connected to the first filter plate 211 and the third filter plate 213.
[0090] The input filtering module 21 includes a first filter plate 211, a second filter plate 212, and a third filter plate 213. The filter plates are used to mount components, including but not limited to capacitors, inductors, and resistors. The second filter plate 212 is located between the first filter plate 211 and the third filter plate 213; in other words, the first filter plate 211, the second filter plate 212, and the third filter plate 213 are stacked sequentially. The thickness direction of the first filter plate 211 is the same as the thickness direction of the second filter plate 212; in other words, the plane containing the first filter plate 211 is parallel to the plane containing the second filter plate 212. The thickness direction of the third filter plate 213 is perpendicular to or approximately perpendicular to the thickness direction of the second filter plate 212; in other words, the plane containing the third filter plate 213 is perpendicular to or approximately perpendicular to the plane containing the second filter plate 212.
[0091] It is worth noting that the thickness direction refers to the direction of the smaller dimension in terms of length, width, and height of the component. For example, in this embodiment, the thickness direction of the first filter plate 211 is the Z direction in Figure 10, the thickness direction of the second filter plate 212 is the Z direction in Figure 10, and the thickness direction of the third filter plate 213 is the X direction in Figure 10. Furthermore, in this embodiment, "perpendicular" refers to an angle that is a right angle, and "approximately perpendicular" refers to an angle greater than or equal to 80° and less than 90°.
[0092] As can be seen from the above, in related technologies, the filter board is a single circuit board with a large area, making it difficult to further reduce the size of the vehicle power supply 1. In this embodiment, the input filter module 21 is divided into a first filter board 211, a second filter board 212, and a third filter board 213, which are stacked and vertically arranged. This reduces the horizontal area of the input filter module 21 without affecting the filtering effect. At the same time, various components are placed between the filter boards, and the space utilization of the input filter module 21 in the thickness direction of the vehicle power supply 1 is expanded without exceeding the thickness of the vehicle power supply 1 itself. This allows the size of the vehicle power supply 1 to be further reduced, thereby improving the power density of the vehicle power supply 1.
[0093] Please refer to Figures 15 and 16. Figure 16 is a three-dimensional structural diagram of the connecting component in one embodiment of this application. In this embodiment, the filtering component 20 further includes a connecting component 25, which is disposed between the first filter plate 211 and the second filter plate 212. The connecting component 25 includes a plurality of conductive elements 251 and a connecting element 252. The opposite ends of the plurality of conductive elements 251 pass through the opposite ends of the connecting element 252. One end of the conductive element 251 is electrically connected to the first filter plate 211, and the other end is electrically connected to the second filter plate 212.
[0094] As can be seen from the above, the first filter plate 211 and the second filter plate 212 are stacked. In this embodiment, the filter assembly 20 also includes a connecting assembly 25. The connecting assembly 25 is disposed between the first filter plate 211 and the second filter plate 212, mainly used for electrically connecting the first filter plate 211 and the second filter plate 212, and also used for supporting the first filter plate 211 and the second filter plate 212. The connecting assembly 25 includes conductive elements 251 and connecting elements 252, with the opposite ends of the conductive elements 251 passing through the opposite ends of the connecting elements 252. The connecting elements 252 are the overall shell of the connecting assembly 25, used to space the conductive elements 251, and multiple conductive elements 251 are used to form a conductive path, thereby electrically connecting the first filter plate 211 and the second filter plate 212.
[0095] In this embodiment, the first filter plate 211 and the second filter plate 212 are connected by the connecting component 25. While realizing the electrical connection between the first filter plate 211 and the second filter plate 212, the connecting component 25 can also support the first filter plate 211 and the second filter plate 212, thereby making the first filter plate 211 and the second filter plate 212 spaced apart, which facilitates the placement of various components between the first filter plate 211 and the second filter plate 212.
[0096] Please refer to Figures 17-20. Figure 17 is a three-dimensional structural diagram of the heat dissipation component in one embodiment of this application. Figure 18 is an exploded view of the heat dissipation component shown in Figure 17. Figure 19 is a three-dimensional structural diagram of the sub-power board and the heat dissipation component in one embodiment of this application. Figure 20 is an exploded view of the sub-power board and the heat dissipation component in one embodiment of this application.
[0097] In this embodiment, the vehicle power supply 1 further includes a heat dissipation component 70. The heat dissipation component 70 includes a heat dissipation plate 71 disposed on one side of the secondary power board 12. The heat dissipation plate 71 includes a first heat dissipation layer 711, a second heat dissipation layer 712, and a third heat dissipation layer 713 stacked together. The thermal conductivity of the first heat dissipation layer 711 and the thermal conductivity of the third heat dissipation layer 713 are greater than the thermal conductivity of the second heat dissipation layer 712.
[0098] The vehicle power supply 1 also includes a heat dissipation assembly 70, which includes a heat sink 71 disposed on one side of the secondary power board 12 to abut against the secondary power board 12 and assist in heat dissipation. The heat sink 71 includes a first heat dissipation layer 711, a second heat dissipation layer 712, and a third heat dissipation layer 713 stacked together. The thermal conductivity of the first heat dissipation layer 711 and the third heat dissipation layer 713 is greater than that of the second heat dissipation layer 712. The first heat dissipation layer 711 is used to contact the secondary power board 12 and conduct heat to the second heat dissipation layer 712. Optionally, the first heat dissipation layer 711 is a metal layer. The second heat dissipation layer 712 is used to conduct heat to the third heat dissipation layer 713. The second heat dissipation layer 712 is also an insulating layer, so that the third heat dissipation layer 713 is insulated from the first heat dissipation layer 711. Optionally, the second heat dissipation layer 712 is a ceramic layer. The third heat dissipation layer 713 is used to connect the water channel 50 and conduct the heat of the second heat dissipation layer 712 to the water channel 50. Optionally, the third heat dissipation layer 713 is a metal layer.
[0099] In related technologies, the secondary power board 12 is typically directly attached to the water channel 50 for heat dissipation. Since the side of the secondary power board 12 facing the water channel 50 is usually not flat, the contact between the secondary power board 12 and the water channel 50 is not tight, resulting in poor heat dissipation efficiency. Of course, some solutions add a ceramic heat sink 71 between the secondary power board 12 and the water channel 50, ensuring that the secondary power board 12 is insulated from the heat dissipation mechanism and thus making close contact with the water channel 50. However, the heat dissipation efficiency of the ceramic heat sink 71 is relatively low and cannot meet the enormous heat generated by the secondary power board 12.
[0100] In this embodiment, by adding a first heat dissipation layer 711 and a third heat dissipation layer 713 with a thermal conductivity greater than that of the second heat dissipation layer 712 on both sides of the second heat dissipation layer 712, the speed at which heat from the secondary power board 12 is transferred to the second heat dissipation layer 712 is accelerated, and the speed at which heat from the second heat dissipation layer 712 is transferred to the water channel 50 is also accelerated. This ensures that the heat generated by the secondary power board 12 can be conducted to the water channel 50 in a timely manner, preventing the temperature of the secondary power board 12 from becoming too high.
[0101] In this embodiment, the vehicle power supply 1 includes a first set of electrolytic capacitors and a second set of electrolytic capacitors. The first set of electrolytic capacitors is located on one side of the water channel 50, and the second set of electrolytic capacitors is located on the other side of the water channel 50. The vehicle power supply 1 has two sets of electrolytic capacitors, namely the first set and the second set, which are used together with inductors to form a resonant circuit for frequency selection and filtering. Both sets of electrolytic capacitors are installed in the filter assembly 20 and are located between the filter assembly 20 and the bottom wall of the housing 30. The first set of electrolytic capacitors is located on one side of the water channel 50, and the second set is located on the other side of the water channel 50. In other words, the first set of electrolytic capacitors and the second set of electrolytic capacitors are respectively located on both sides of the water channel 50. That is to say, in this application, the vehicle power supply has electrolytic capacitors on both the input and output sides, thereby improving the filtering effect of the input and the filtering effect of the output. Meanwhile, the electrolytic capacitors are divided into two groups and set on both sides of the water channel 50, which reduces the space occupied by the electrolytic capacitors on one side of the water channel 50, so that the space occupied by the electrolytic capacitors is distributed on both sides of the water channel 50, thereby further reducing the size of the vehicle power supply 1.
[0102] In this embodiment, the vehicle power supply 1 further includes an inverter component, which is disposed within the filter component 20. The inverter component converts direct current (DC) back to alternating current (AC) to power external circuits of the vehicle. Since the inverter component is integrated into the filter component 20, they share multiple circuit boards. In related technologies, inverter components are mostly set independently from the filter component 20, resulting in a large overall size of the vehicle power supply 1 and difficulty in increasing its power density. In this embodiment, integrating the inverter component into the filter component 20 further reduces the overall size of the vehicle power supply 1, thereby increasing its power density.
[0103] Please refer to Figures 1-3 and Figure 21. Figure 21 is a schematic diagram of the input terminals in one embodiment of this application. In this embodiment, the vehicle power supply 1 further includes an input terminal 14, which is electrically connected to the filter assembly 20. The input terminal 14 includes an AC input terminal 141 and an inverter terminal 142. As can be seen from the above, the inverter assembly can be integrated into the filter assembly 20, that is, the filter assembly 20 and the inverter assembly share multiple circuit boards. In this embodiment, the vehicle power supply 1 also includes the input terminal 14, and the output terminal 15 includes an AC input terminal 141 and an inverter terminal 142. The AC input terminal 141 is used to input AC power, and the inverter terminal 142 is used to output AC power to supply power to electrical appliances outside the vehicle.
[0104] Please refer to Figure 22, which is a three-dimensional structural diagram of the input terminal shown in Figure 21. Optionally, the input terminal 14 also includes multiple input pins 143, which are used for electrical connection to the filter assembly 20. The input pins 143 can be plugged into the filter assembly 20 and fixed to the filter assembly 20 by means of soldering or other methods. Further optionally, some of the input pins 143 can be used for electrical connection to the filter assembly 20, while other input pins 143 can be used for electrical connection to the inverter assembly.
[0105] In related technologies, the AC input terminal 141 and the inverter terminal 142 are generally provided separately. For example, some vehicle power supplies 1 with inverter functions generally have a separate 4-pin input terminal and a separate 2-pin inverter terminal. In this embodiment, the input terminal and the inverter terminal can be integrated into a single terminal, for example, the 4-pin input terminal and the 2-pin inverter terminal can be integrated into a 6-pin terminal, thereby saving the length of the internal wiring of the vehicle power supply 1, and thus making the structure of the vehicle power supply 1 more compact and the power density higher.
[0106] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0107] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise expressly specified. Moreover, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.
[0108] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0109] The foregoing has provided a detailed description of the embodiments of this application, elucidating and explaining the principles and implementation methods of this application. These descriptions are merely for the purpose of aiding understanding the method and core ideas of this application. However, the content of this specification should not be construed as a limitation of this application. Those skilled in the art can make various modifications and variations to this application without departing from its spirit and scope. These modifications and variations fall within the scope of the claims of this application and their equivalents.
Claims
1. A vehicle-mounted power supply, wherein, The vehicle power supply includes a housing, a cover plate, a filter assembly, and a power assembly. The housing and the cover plate form a receiving space, and the filter assembly and the power assembly are disposed within the receiving space. The power assembly includes a main power board and a secondary power board. The thickness direction of the main power board is perpendicular to the thickness direction of the secondary power board. The secondary power board and the filter assembly are disposed on one side of the main power board. The filter assembly has a top surface facing the cover plate, a bottom surface away from the cover plate, and a side surface that bends to connect the top surface and the bottom surface. The secondary power board is disposed on the side of the filter assembly, and the thickness direction of the secondary power board is perpendicular to the thickness direction of the filter assembly. The main power board is electrically connected to the filter assembly and the secondary power board.
2. The vehicle power supply as described in claim 1, wherein, The power component includes multiple sub-power boards, which are divided into at least one first sub-power board and at least one second sub-power board. The at least one first sub-power board and the at least one second sub-power board are arranged opposite each other along the thickness direction of the sub-power board.
3. The vehicle power supply as described in claim 1, wherein, The vehicle power supply also includes a water channel, which is disposed within the housing. The water channel includes an inlet section, a bend section, and an outlet section. The inlet section and the outlet section are bent and connected at the bend section, and the inlet section and the outlet section are located on the same side of the bend section. The power assembly includes multiple sub-power boards, which are divided into at least one first sub-power board and at least one second sub-power board. The at least one first sub-power board is disposed on the outer wall of the inlet section, and the at least one second sub-power board is disposed on the outer wall of the outlet section.
4. The vehicle power supply as described in claim 3, wherein, The vehicle power supply also includes a clamping assembly, which includes a clamping part and a fixing part. The fixing part is bent and connected to the clamping part. The fixing part is fixed to the water channel. The clamping part is located on the side of the secondary power board away from the water channel, and the clamping part abuts against the secondary power board so that the secondary power board abuts against the water channel.
5. The vehicle power supply as described in claim 3, wherein, The vehicle power supply also includes an input terminal, an output terminal, a water inlet, and a water outlet. The water inlet and the water outlet are located at one end of the housing and are connected to the water channel. The input terminal and the output terminal are located at the end of the housing opposite to the water inlet and the water outlet.
6. The vehicle power supply as described in claim 5, wherein, The vehicle power supply also includes a signal terminal and a low-voltage output terminal. The signal terminal and the low-voltage output terminal are arranged along the arrangement direction of the housing and the cover plate. The distance between the signal terminal and the input terminal is greater than or less than the distance between the low-voltage output terminal and the input terminal.
7. The vehicle power supply as described in any one of claims 1-6, wherein, The filtering component includes an input filtering module and an output filtering module, and the distance between the input filtering module and the main power board is equal to the distance between the output filtering module and the main power board.
8. The vehicle power supply as described in claim 7, wherein, The input filtering module includes a first filter board, a second filter board, and a third filter board. The second filter board is disposed between the first filter board and the third filter board. The thickness direction of the first filter board is the same as that of the second filter board, and the thickness direction of the third filter board is perpendicular to that of the second filter board. The second filter board is electrically connected to the first filter board and the third filter board.
9. The vehicle power supply as described in claim 1, wherein, The vehicle power supply also includes a heat dissipation component, which includes a heat dissipation plate disposed on one side of the sub-power board. The heat dissipation plate includes a first heat dissipation layer, a second heat dissipation layer, and a third heat dissipation layer stacked together. The thermal conductivity of the first heat dissipation layer and the thermal conductivity of the third heat dissipation layer are greater than the thermal conductivity of the second heat dissipation layer.
10. The vehicle power supply as described in claim 3, wherein, The vehicle power supply includes a first set of electrolytic capacitors and a second set of electrolytic capacitors; the first set of electrolytic capacitors is located on one side of the waterway, and the second set of electrolytic capacitors is located on the other side of the waterway.
11. The vehicle power supply as described in claim 1, wherein, The vehicle power supply also includes an inverter component, which is located within the filter component.
12. The vehicle power supply as described in claim 11, wherein, The vehicle power supply also includes an input terminal, which is electrically connected to the filter assembly. The input terminal includes an AC input terminal and an inverter terminal.