Vehicle-mounted power supply

Abstract

The invention provides a vehicle-mounted power supply. The vehicle-mounted power supply comprises a shell, a cover plate, a filtering assembly and a power assembly. The shell and the cover plate define an accommodating space, and the filtering assembly and the power assembly are arranged in the accommodating space. The power assembly comprises a main power board and an auxiliary power board, the thickness direction of the main power board is perpendicular to the thickness direction of the auxiliary power board, and the auxiliary power board and the filtering assembly are arranged on one side of the main power board. The filtering assembly is provided with a top surface facing the cover plate, a bottom surface deviating from the cover plate, and a side surface connected with the top surface and the bottom surface in a bending manner. The auxiliary power board is arranged on the side face of the filtering assembly, the thickness direction of the auxiliary power board is perpendicular to the thickness direction of the filtering assembly, and the main power board is electrically connected with the filtering assembly and the auxiliary power board. According to the vehicle-mounted power supply, the power assembly is divided into the main power board and the auxiliary power board, and the auxiliary power board is arranged on the side face of the filtering assembly. The area of the main power board is reduced, and the power density of the vehicle-mounted power supply is improved.

Description

Technical Field

[0001] The present application belongs to the field of power supply technology, and specifically relates to vehicle-mounted power supply. Background Art

[0002] The on-board power supply is an important component of electric vehicles, mainly used to convert the voltage inside the vehicle, such as converting AC to DC, or converting high voltage to low voltage. However, the energy density of the on-board power supply is low and the volume is large. Summary of the invention

[0003] In view of this, the first aspect of the present application provides a vehicle-mounted power supply, which includes a shell, a cover plate, a filter assembly, and a power assembly. The shell and the cover plate are arranged to form a receiving space, and the filter assembly and the power assembly are arranged in 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, and the secondary power board and the filter assembly are arranged 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 bent to connect the top surface and the bottom surface. The secondary power board is arranged 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, and the main power board electrically connects the filter assembly and the secondary power board.

[0004] The vehicle-mounted power supply provided in the first aspect of the present application divides the power component into a main power board and a secondary power board, wherein the secondary power board and the filter component are arranged on the same side of the main power board, and the secondary power board is arranged on the side of the filter component. Without affecting the overall thickness of the vehicle-mounted power supply, the area of ​​the main power board is reduced, thereby further reducing the overall volume of the vehicle-mounted power supply and improving the power density of the vehicle-mounted power supply.

[0005] Wherein, the power component includes multiple auxiliary power boards, and the multiple auxiliary power boards are divided into at least one first auxiliary power board and at least one second auxiliary power board. The at least one first auxiliary power board and the at least one second auxiliary power board are arranged relative to each other along the thickness direction of the auxiliary power board.

[0006] The vehicle-mounted power supply further comprises a water channel, the water channel is arranged in the housing, the water channel comprises a water inlet, a bending portion, and a water outlet, the water inlet and the water outlet are bent and connected to the bending portion, and the water inlet and the water outlet are located on the same side of the bending portion. The power component comprises a plurality of auxiliary power boards, the plurality of auxiliary power boards are divided into at least one first auxiliary power board and at least one second auxiliary power board, the at least one first auxiliary power board is arranged on the outer side wall of the water inlet, and the at least one second auxiliary power board is arranged on the outer side wall of the water outlet.

[0007] Among them, the vehicle-mounted power supply also includes a clamping assembly, the clamping assembly includes a clamping portion and a fixing portion, the fixing portion is bent and connected to the clamping portion, the fixing portion is fixed to the water channel, the clamping portion is arranged on the side of the auxiliary power board away from the water channel, and the clamping portion abuts the auxiliary power board so that the auxiliary power board abuts the water channel.

[0008] Among them, the vehicle-mounted 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 arranged at one end of the shell and the water inlet and the water outlet are connected to the water channel. The input terminal and the output terminal are arranged at one end of the shell away from the water inlet and the water outlet.

[0009] Among them, 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 shell and the cover plate, and 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] Wherein, the filter component includes an input filter module and an output filter module, and the distance between the input filter module and the main power board is equal to the distance between the output filter module and the main power board.

[0011] Among them, the input filter module includes a first filter plate, a second filter plate, and a third filter plate, the second filter plate is arranged between the first filter plate and the third filter plate, the thickness direction of the first filter plate is the same as the thickness direction of the second filter plate, the thickness direction of the third filter plate is perpendicular to the thickness direction of the second filter plate, and the second filter plate is electrically connected to the first filter plate and the third filter plate.

[0012] Among them, the vehicle-mounted power supply also includes a heat dissipation component, the heat dissipation component includes a heat dissipation plate arranged on one side of the auxiliary power board, the heat dissipation plate includes a first heat dissipation layer, a second heat dissipation layer, and a third heat dissipation layer that are stacked, and 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-mounted power supply includes a first group of electrolytic capacitors and a second group of electrolytic capacitors, and the first group of electrolytic capacitors is arranged on one side of the waterway, and the second group of electrolytic capacitors is arranged on the other side of the waterway.

[0014] Wherein, the vehicle-mounted power supply further includes an inverter component, and the inverter component is arranged on the filter component.

[0015] Wherein, the vehicle-mounted power supply further includes an input terminal, the input terminal is electrically connected to the filter component, and the input terminal includes an AC input terminal and an inverter terminal. Brief Description of the Drawings

[0016] To more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of a vehicle-mounted power supply in an embodiment of the present application.

[0018] Figure 2 It is Figure 1 the front view of the vehicle-mounted power supply shown.

[0019] Figure 3 It is Figure 1 the exploded view of the vehicle-mounted power supply shown.

[0020] Figure 4 It is Figure 1 the top view of the vehicle-mounted power supply when the cover plate and the main power board are removed.

[0021] Figure 5 It is a schematic diagram of the cooperation of the main power board, the auxiliary power board, and the filtering component in an embodiment of the present application.

[0022] Figure 6 It is Figure 5 the exploded schematic diagram of the main power board, the auxiliary power board, and the filtering component shown.

[0023] Figure 7 It is an exploded schematic diagram of the filtering component and the auxiliary power board in an embodiment of the present application.

[0024] Figure 8 It is an exploded schematic diagram of the auxiliary power board and the housing in an embodiment of the present application.

[0025] Figure 9 It is the top view of the housing in an embodiment of the present application.

[0026] Figure 10 It is a three-dimensional structural schematic diagram of the input filtering module in an embodiment of the present application.

[0027] Figure 11 It is a three-dimensional structural schematic diagram of the output filtering module in an embodiment of the present application.

[0028] Figure 12 It is a three-dimensional structural schematic diagram of the clamping component in an embodiment of the present application.

[0029] Figure 13Exploded view of the clamping assembly according to an embodiment of the present application.

[0030] Figure 14 Cross-sectional view of the clamping assembly, sub-power board, and water channel in cooperation according to an embodiment of the present application.

[0031] Figure 15 For Figure 10 Front view of the input filter module shown.

[0032] Figure 16 Schematic perspective view of the connection assembly according to an embodiment of the present application.

[0033] Figure 17 Schematic perspective view of the heat dissipation assembly according to an embodiment of the present application.

[0034] Figure 18 For Figure 17 Exploded view of the heat dissipation assembly shown.

[0035] Figure 19 Schematic perspective view of the cooperation between the sub-power board and the heat dissipation assembly according to an embodiment of the present application.

[0036] Figure 20 Exploded view of the sub-power board and the heat dissipation assembly according to an embodiment of the present application.

[0037] Figure 21 Schematic diagram of the input terminal according to an embodiment of the present application.

[0038] Figure 22 For Figure 21 Schematic perspective view of the input terminal shown.

[0039] Explanation of reference numerals:

[0040] Vehicle power supply - 1, power component - 10, main power board - 11, auxiliary 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, filtering component - 20, input filtering module - 21, first filtering board - 211, second filtering board - 212, third filtering board - 213, output filtering module - 22, connection component - 25, varistor - 26, shielding part - 28, housing - 30, cover plate - 40, water channel - 50, water inlet part - 51, water outlet part - 52, connection part - 53, water inlet - 54, water outlet - 55, first potting area - 56, second potting area - 57, third potting area - 58, clamping component - 60, clamping part - 61, fixing part - 62, elastic part - 63, heat dissipation component - 70, heat dissipation plate - 71, first heat dissipation layer - 711, second heat dissipation layer - 712, third heat dissipation layer - 713. Detailed implementation manners

[0041] The following are the preferred implementation manners of the present application. It should be noted that for those of ordinary skill in the art in the technical field, without departing from the principle of the present application, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present application.

[0042] Before introducing the technical solutions provided by the present application, the technical problems in the related technologies will be introduced in detail.

[0043] The vehicle power supply is an important part of an electric vehicle, mainly used for converting the current and voltage inside the vehicle. For example, converting alternating current into direct current, or converting high - voltage electricity into low - voltage electricity. The vehicle power supply can also be called an on - board charger (OBC). With the rapid development of electric vehicles, in order to increase the driving and storage space inside the vehicle as much as possible, it is required that the volume of various components in the electric vehicle should be gradually reduced. This also makes the vehicle power supply need to optimize the layout of the structure and innovate the design of the structure, so that the vehicle power supply has a higher power density.

[0044] However, in the current vehicle power supply, the filtering board and the power board are usually a whole circuit board, and the filtering board and the power board are stacked. This makes the areas of the filtering board and the power board large and the space utilization rate low, and further makes it difficult to improve the power density of the vehicle power supply. The current power density of the vehicle power supply is usually 3.5 - 4 kW / L. However, in recent years, vehicle manufacturers require the power density of the vehicle power supply to be increased to 4.5 - 5 kW / L.

[0045] In view of this, in order to solve the above problems, this application provides a vehicle-mounted power supply. Please refer to Figures 1 - 6 , Figure 1 It is a schematic diagram of the three-dimensional structure of the vehicle-mounted power supply in one embodiment of the present application. Figure 2 for Figure 1 A front view of the vehicle power supply is shown. Figure 3 for Figure 1 An exploded view of the on-board power supply is shown. Figure 4 for Figure 1 The vehicle power supply is shown in a top view with the cover and main power board removed. Figure 5 It is a schematic diagram of the coordination of a main power board, a secondary power board, and a filter assembly in one embodiment of the present application. Figure 6 for Figure 5 The exploded diagram of the main power board, the auxiliary power board, and the filter assembly is shown.

[0046] 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 are enclosed to form a receiving space, and the filter assembly 20 and the power assembly 10 are arranged in 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, and the secondary power board 12 and the filter assembly 20 are arranged 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 is bent to connect the top surface and the bottom surface. The secondary power board 12 is arranged on the side 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, and the main power board 11 electrically connects the filter assembly 20 and the secondary power board 12.

[0047] The vehicle-mounted power supply 1 provided in this embodiment is mainly used in electric vehicles, and the vehicle-mounted power supply 1 is installed in the circuit of the electric vehicle to achieve voltage or current changes, such as converting high voltage electricity into low voltage electricity, converting alternating current into direct current, etc.

[0048] 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 mount various components of the vehicle power supply 1, and the cover plate 40 is used to be arranged on one side of the housing 30 so as to make the housing 30 airtight. The cover plate 40 and the housing 30 are jointly arranged to form a receiving space, and the filter assembly 20, the power assembly 10, and various other components are arranged in the receiving space.

[0049] The power assembly 10 is used to receive and transmit relevant signals of the vehicle, and transform the voltage and current passing through the vehicle power supply 1 according to the signals. The power assembly 10 includes a main power board 11 and a sub-power board 12, wherein the main power board 11 is used to process the information transmitted to the vehicle power supply 1, and is also used to process the information inside the vehicle power supply 1, which is equivalent to the "brain" of the vehicle power supply 1. The sub-power board 12 is used to install transistors 126, so as to construct a circuit for voltage and current conversion together with the main power board 11. The thickness direction of the main power board 11 is perpendicular to the thickness direction of the sub-power board 12. It is worth noting that the thickness direction refers to the direction of the relatively smaller dimensions of the length, width, height and height of the component. For example, the thickness direction of the main power board 11 is Figure 6 In the Z direction, the thickness direction of the auxiliary power board 12 is Figure 6 Meanwhile, the vertical in this embodiment means that the included angle is a right angle or approximately a right angle, and the approximately right angle means that the included angle is greater than or equal to 80° and less than 90°.

[0050] The filter assembly 20 is used to filter the electromagnetic interference signal in the circuit, and is mainly arranged after the input end and before the output end of the circuit. The auxiliary power board 12 and the filter assembly 20 are arranged 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 arranged relatively to each other, and the auxiliary power board 12 and the filter assembly 20 are jointly arranged on the top surface of the main power board 11, or the auxiliary power board 12 and the filter assembly 20 are jointly arranged on the bottom surface of the main power board 11. Specifically, in this embodiment, the auxiliary power board 12 and the filter assembly 20 are both arranged on the bottom surface of the main power board 11, that is, the auxiliary power board 12 and the filter assembly 20 are both arranged below the main power board 11.

[0051] 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 is bent and connects the top surface and the bottom surface. Specifically, in this embodiment, the filter assembly 20 is arranged below the main power board 11, that is, the surface of the filter assembly 20 facing the main power board 11 is the top surface of the filter assembly 20, and the surface facing away from the main power board 11 is the bottom surface of the filter assembly 20. Between the top surface and the bottom surface, the surface connecting the top surface and the bottom surface is the side surface of the filter assembly 20.

[0052] The auxiliary power board 12 is arranged on the side of the filter assembly 20. In other words, the auxiliary power board 12 is not arranged between the filter assembly 20 and the main power board 11. The auxiliary power board 12 is not arranged on the side of the filter assembly 20 away from the main power board 11. That is, the auxiliary power board 12 is arranged on the side of the main power board 11 in parallel with the filter assembly 20. The thickness direction of the auxiliary power board 12 is perpendicular to the thickness direction of the filter assembly 20. The thickness direction of the auxiliary power board 12 is Figure 6 In the Y direction, the thickness direction of the filter component 20 is Figure 6In the Z direction. In other words, the auxiliary power board 12 is arranged perpendicular or approximately perpendicular to the filtering component 20. From the above, it can be known that the auxiliary power board 12 is also arranged perpendicular or approximately perpendicular to the main power board 11, that is, the filtering component 20 is arranged in a stacked and parallel or approximately parallel manner with the main power board 11.

[0053] The main power board 11 electrically connects the filtering component 20 and the auxiliary power board 12. Specifically, in this embodiment, both the filtering component 20 and the side of the auxiliary power board 12 facing the main power board 11 are provided with connection terminals 18, and the electrical connection between the main power board 11 and the auxiliary power board 12, as well as the electrical connection between the main power board 11 and the filtering component 20, are realized through the connection terminals 18. The main power board 11 controls the filtering component 20 and the auxiliary power board 12 through electrical connection to realize a series of functions.

[0054] In the related art, the power board is a single whole board, which makes the area of the power board larger, and further makes the overall volume of the vehicle-mounted power supply 1 larger and the energy density lower. In this embodiment, by dividing the power component 10 into the main power board 11 and the auxiliary power board 12, the auxiliary power board 12 and the filtering component 20 are arranged on the same side of the main power board 11, and the auxiliary power board 12 is arranged on the side of the filtering component 20, reducing the area occupied by the power component 10, so that the overall volume of the vehicle-mounted power supply 1 can be further reduced. At the same time, by arranging the auxiliary power board 12 on the side of the filtering component 20, the area of the power component 10 is expanded without increasing the thickness of the vehicle-mounted power supply 1, so that the energy density of the vehicle-mounted power supply 1 is higher.

[0055] Optionally, the side of the filtering component 20 facing the main power board 11 further includes a shielding member 28, and the shielding member 28 is used to reduce the mutual influence caused by electromagnetic interference generated when the main power board 11 and the filtering component 20 work.

[0056] Optionally, the auxiliary 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 on the circuit board. At the same time, the transistor 126 adopts the form of an L-shaped elastic sheet, reducing the space occupied by the transistor 126.

[0057] Further optionally, the circuit board inside the vehicle-mounted power supply 1 includes but is not limited to buried copper boards, aluminum substrates, etc., so that the heat generated by the transistor 126 can be better transmitted to the water channel 50.

[0058] Optionally, after various components inside the vehicle-mounted power supply 1 are assembled, the entire accommodation space can be vacuum potted with thermal conductive glue, so that the overall heat dissipation effect of the vehicle-mounted power supply 1 is better.

[0059] Please refer to Figures 4 - 7 , Figure 7This is an exploded view of a filter component and a secondary power board in an embodiment of the present application. In this embodiment, an avoidance hole 24 is provided along the thickness direction of the edge of the filter component 20, and the secondary power board 12 is inserted into the avoidance hole 24 so that the secondary power board 12 penetrates through the filter component 20.

[0060] An avoidance hole 24 is provided along the thickness direction of the edge of the filter component 20. In other words, there is an open avoidance hole 24 at the edge of the side of the filter component 20 facing the secondary power board 12, and this avoidance hole 24 penetrates through the top surface and the bottom surface of the filter component 20. The secondary power board 12 is inserted into the avoidance hole 24 so that the secondary power board 12 penetrates through the filter component 20. In other words, the secondary power board 12 is arranged in the avoidance hole 24 at the edge of the side of the filter component 20 facing the secondary power board 12, so that the filter component 20 makes a certain space for the secondary power board 12 to be arranged. At the same time, the secondary power board 12 penetrates through the filter component 20, that is, the secondary power board 12 protrudes from the top surface and the bottom surface of the filter component 20, which means that the filter component 20 does not block the secondary power board 12.

[0061] As can be seen from the above content, the secondary power board 12 is arranged on the side of the filter component 20. On this basis, in this embodiment, the secondary power board 12 can be arranged in the avoidance hole 24 on the side of the filter component 20 facing the secondary power board 12, and the secondary power board 12 protrudes from the top surface and the bottom surface of the filter component 20, so that the width of the vehicle-mounted power supply 1 in the arrangement direction of the filter component 20 and the secondary power board 12 is smaller, which is beneficial to improving the power density of the vehicle-mounted power supply 1. At the same time, the secondary power board 12 protrudes from the filter component 20, so that the filter component 20 does not affect the electrical connection between the secondary power board 12 and the main power board 11.

[0062] Please refer to Figures 4 - 8 , Figure 8 This is an exploded view of a secondary power board and a housing in an embodiment of the present application. In this embodiment, the power component 10 includes a plurality of secondary power boards 12, and the plurality of secondary power boards 12 are divided into at least one first secondary power board 12 and at least one second secondary power board 12, and the at least one first secondary power board 12 and the at least one second secondary power board 12 are arranged oppositely along the thickness direction of the secondary power board 12.

[0063] The power component 10 includes a plurality of sub-power boards 12. In other words, the power component 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. 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. At least one first sub-power board 12 and at least one second sub-power board 12 are disposed opposite to each other along the thickness direction of the sub-power board 12. In other words, the first sub-power board 12 and the second sub-power board 12 are not arranged in a row, but arranged 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 disposed at positions where the thickness directions of the plurality of sub-power boards 12 are the same. It should be noted that the thickness direction of the sub-power board 12 is Figure 6 as shown by the Y direction in

[0064] 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 board (DAB primary power board 122), a dual active bridge secondary board (DAB secondary power board 123), and a low voltage DC to high voltage DC primary board (LV DC / DC primary power board 124). The PFC circuit is mainly used to control the waveform of the input current to make it synchronous with the input voltage waveform, improve the power factor, and reduce the harmonic content. The DAB circuit is composed of two full-bridge converters (i.e., H bridges) magnetically coupled by a transformer. These H-bridge circuits achieve electrical isolation and energy transfer through the transformer. The LV DC / DC circuit is mainly used to convert low voltage direct current into high voltage direct current. Among them, the power factor correction board is the first group of sub-power boards 12, i.e., the first sub-power board 12, and the dual active bridge primary board, the dual active bridge secondary board, and the low voltage DC to high voltage DC primary board form the second group of sub-power boards 12, i.e., the second sub-power board 12.

[0065] In summary, in this embodiment, the first sub-power board 12 is disposed on one side of the bottom surface of the main power board 11, and the second sub-power board 12 is disposed on the other side of the bottom surface of the main power board 11. And the first sub-power board 12 and the second sub-power board 12 are disposed opposite to each other, that is, the extending direction of the first sub-power board 12 is the same as the extending direction of the second sub-power board 12. Thereby, when the sub-power board 12 is electrically connected to the main power board 11, the length of the circuit is saved, the wiring of the main power board 11 is made more concise, and thus the size of the main power board 11 is reduced, and the power density of the in-vehicle power supply 1 is improved.

[0066] Please also refer to Figures 3 - 4 、 Figures 8 - 9 , Figure 9This is a top view of the housing in an embodiment of the present application. In this embodiment, the vehicle-mounted power supply 1 further includes a water channel 50, the water channel 50 is arranged inside the housing 30, and the secondary power board 12 is arranged on the outer side wall of the water channel 50.

[0067] The vehicle-mounted power supply 1 further includes a water channel 50, and the water channel 50 is used for dissipating heat of various components inside the vehicle-mounted power supply 1. The water channel 50 is arranged inside the housing 30. In other words, the housing 30 is arranged in a receiving space. Specifically, in this embodiment, the water channel 50 can be arranged on the bottom surface of the housing 30 facing the cover plate 40. The secondary power board 12 is arranged on the outer side wall of the water channel 50, that is to say, the secondary power board 12 abuts against the side wall of the water channel 50. The secondary power board 12 has a plurality of transistors, and a large amount of heat will be dissipated when the transistors are working, causing the temperature of the secondary power board 12 to rise. In this embodiment, by arranging the secondary power board 12 on the side wall of the water channel 50 to abut against the water channel 50, the heat dissipation performance of the secondary power board 12 is improved, which is beneficial to reducing the working temperature of the secondary power board 12.

[0068] Optionally, the connection relationship between the secondary power board 12 and the water channel 50 includes but is not limited to bonding, screw connection, abutting, etc., and the present application will be introduced in detail later.

[0069] Please refer to Figures 3 - 4 、 Figures 8 - 11 , Figure 10 This is a three-dimensional structural schematic diagram of an input filter module in an embodiment of the present application. Figure 11 This is a three-dimensional structural schematic diagram of an output filter module in an embodiment of the present application. In this embodiment, the water channel 50 includes a water inlet part 51, a connecting part 53, and a water outlet part 52. The water inlet part 51 and the water outlet part 52 are bent and connected to the connecting part 53, and the water inlet part 51 and the water outlet part 52 are located on the same side of the connecting part 53. The power component 10 includes a plurality of secondary power boards 12. The plurality of secondary power boards 12 are divided into at least one first secondary power board 12 and at least one second secondary power board 12. The at least one first secondary power board 12 is arranged on the outer side wall of the water inlet part 51, and the at least one second secondary power board 12 is arranged on the outer side wall of the water outlet part 52.

[0070] The water channel 50 includes a water inlet part 51, a connecting part 53, and a water outlet part 52. The water inlet part 51 and the water outlet part 52 are bent and connected to the connecting part 53, and the water inlet part 51 and the water outlet part 52 are located on the same side of the connecting part 53. In other words, the water channel 50 is integrally U-shaped, where one side of the U shape is the water inlet part 51, the other side of the U shape is the water outlet part 52, and the bottom surface of the U shape is the connecting part 53 that bends and connects the water inlet part 51 and the water outlet part 52. One end of the water inlet part 51 and one end of the water outlet part 52 are both connected to the housing 30, that is, both ends of the U shape are connected to the same surface of the housing 30.

[0071] The power component 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 includes one or more first sub-power boards 12, and the other group includes one or more second sub-power boards 12. The first sub-power board 12 is disposed on the outer sidewall of the water inlet portion 51 of the water channel 50, and the second sub-power board 12 is disposed on the outer sidewall of the water outlet portion 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.

[0072] As can be seen from the above, the first sub-power board 12 and the second sub-power board 12 can be relatively and spaced apart so that the main power board 11 is convenient for wiring. In this embodiment, the water channel 50 can be U-shaped. The first sub-power board 12 is disposed on the sidewall of the water inlet portion 51 of the water channel 50, and the second sub-power board 12 is disposed on the sidewall of the water outlet portion 52 of the water channel 50. While disposing the sub-power board 12 on the sidewall of the water channel 50, the first sub-power board 12 and the second sub-power board 12 are also spaced apart, reducing the assembly difficulty of the vehicle-mounted power supply 1.

[0073] Optionally, when the shape of the water channel 50 is U-shaped, the U-shaped water channel 50 divides the accommodation space into three parts, namely, a first potting area 56 on one side of the U-shaped water channel 50, a second potting area 57 on the other side of the U-shaped water channel 50, and a third potting area 58 in the middle of the U-shaped water channel 50.

[0074] Further optionally, the filtering component 20 includes an input filtering module 21 and an output filtering module 22. The input filtering module 21 is disposed in the first potting area 56, and the output filtering module 22 is disposed in the second potting area 57. The power component 10 further includes a magnetic element 13, and the magnetic element 13 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 the other components.

[0075] Optionally, the side of the output filtering module 22, the input filtering module 21, the magnetic element 13, and the plurality of sub-power boards 12 facing the main power board 11 all have connection terminals 18, and the connection terminals 18 are used for electrically connecting to the main power board 11.

[0076] Please refer to Figures 12 - 14 , Figure 12 which is a schematic three-dimensional structure diagram of the clamping component in an embodiment of the present application. Figure 13 which is an exploded schematic diagram of the clamping component in an embodiment of the present application. Figure 14This is a cross-sectional schematic diagram when the clamping component, the auxiliary power board, and the water channel are matched in an embodiment of the present application. In this embodiment, the vehicle-mounted power supply 1 further includes a clamping component 60. The clamping component 60 includes a clamping portion 61 and a fixing portion 62. The fixing portion 62 is bent to connect the clamping portion 61. The fixing portion 62 is fixed to the water channel 50. The clamping portion 61 is disposed on the side of the auxiliary power board 12 away from the water channel 50, and the clamping portion 61 abuts against the auxiliary power board 12 so that the auxiliary power board 12 abuts against the water channel 50.

[0077] The vehicle-mounted power supply 1 further includes a clamping component 60. The clamping component 60 includes a clamping portion 61 and a fixing portion 62. The clamping portion 61 is used to abut against the auxiliary power board 12, and the fixing portion 62 is used to fix the clamping component 60 to the water channel 50. The fixing portion 62 is bent to connect the clamping portion 61. Specifically, in this embodiment, the thickness direction of the fixing portion 62 is perpendicular to the thickness direction of the clamping portion 61. The fixing portion 62 is fixed to the water channel 50. Optionally, the connection manner between the fixing portion 62 and the water channel 50 can be bonding, screw connection, or snap connection. The clamping portion 61 is disposed on the side of the auxiliary power board 12 away from the water channel 50. In other words, the auxiliary power board 12 is disposed between the clamping portion 61 and the water channel 50. The clamping portion 61 abuts against the auxiliary power board 12 so that the auxiliary power board 12 abuts against the water channel 50. In other words, the clamping portion 61 applies a pressure to the auxiliary power board 12 towards the water channel 50, so that the auxiliary power board 12 abuts against the water channel 50 and is firmly positioned at the same time.

[0078] It can be seen from the above that the auxiliary power board 12 dissipates heat by being disposed on the outer side wall of the water channel 50. In this embodiment, by setting the clamping component 60, the auxiliary power board 12 abuts against the side wall of the water channel 50, making the connection between the auxiliary power board 12 and the water channel 50 more stable and the heat dissipation effect better.

[0079] Please refer to again Figures 12 - 14 In this embodiment, the clamping component 60 further includes an elastic portion 63. The elastic portion 63 is disposed on the side of the clamping portion 61 close to the auxiliary power board 12, and the elastic portion 63 abuts against the auxiliary power board 12. The elastic portion 63 is in a compressed state.

[0080] The clamping assembly 60 also includes an elastic portion 63, which is arranged on a side of the clamping portion 61 close to the auxiliary power board 12. In other words, the elastic portion 63 is arranged between the auxiliary power board 12 and the clamping portion 61. The elastic portion 63 abuts against the auxiliary power board 12, and the elastic portion 63 is in a compressed state when abutting against the auxiliary power board 12. In other words, the elastic portion 63 contacts the auxiliary power board 12, and the elastic portion 63 is in a deformed state when contacting the auxiliary power board 12, that is, the elastic portion 63 always gives the auxiliary power board 12 an elastic force toward the waterway 50. From the above content, it can be known that the auxiliary power board 12 is fixed to the side wall of the waterway 50 by the clamping assembly 60. On this basis, this embodiment can make the clamping portion 61 and the auxiliary power board 12 also include an elastic portion 63, and the elastic portion 63 always gives the auxiliary power board 12 an elastic force toward the waterway 50. The auxiliary power board 12 and the waterway 50 are more closely abutted, and the heat dissipation effect is better.

[0081] Please refer again Figure 4 In this embodiment, the clamping component 60 is arranged on a side away from the top surface of the filter component 20, and the filter component 20 covers the clamping component 60.

[0082] In this embodiment, the clamping assembly 60 is arranged on the side away from the top surface of the filter assembly 20, and the filter assembly 20 covers the clamping assembly 60. Specifically, the top surface area of ​​the filter assembly 20 is larger than the bottom surface area, the clamping assembly 60 is arranged on the side of the filter assembly 20, and the clamping assembly 60 is arranged below the top surface of the filter assembly 20. That is to say, when viewed from the cover plate 40 to the bottom surface of the housing 30, the top surface of the filter assembly 20 covers the clamping assembly 60. As a result, the bottom surfaces of the filter assembly 20 and the housing 30 jointly limit the clamping assembly 60, thereby reducing the risk of the clamping assembly 60 falling off.

[0083] Please refer again Figure 9 In this embodiment, the vehicle-mounted power supply 1 also 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 arranged at one end of the shell 30 and the water inlet 54 and the water outlet 55 are connected to the waterway 50. The input terminal 14 and the output terminal 15 are arranged at one end of the shell 30 away from the water inlet 54 and the water outlet 55.

[0084] The input terminal 14 is used to connect to high-voltage alternating current, generally 220V alternating current, and the output terminal 15 is used to output high-voltage direct current. The water inlet 54 and the water outlet 55 are connected to the water channel 50 for liquid exchange in the water channel 50. The water inlet 54 and the water outlet 55 are arranged at one end of the housing 30, and the input terminal 14 and the output terminal 15 are arranged at the end of the housing 30 away from the water inlet 54 and the water outlet 55. In other words, the water inlet 54 and the water outlet 55 are arranged on the same surface of the housing 30, and the input terminal 14 and the output terminal 15 are arranged on the surface of the housing 30 away from the water inlet 54 and the water outlet 55. Thus, the water inlet 54 and the water outlet 55 are not on the same surface of the housing 30 as the input terminal 14 and the output terminal 15, avoiding the overcrowding and increased area of the interface on the same surface. Furthermore, the thickness of the housing 30 can be further reduced, thereby improving the power density of the vehicle-mounted power supply 1.

[0085] Please refer to again Figure 2 In this embodiment, the vehicle-mounted 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, and 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.

[0086] As can be seen from the above, the vehicle-mounted power supply 1 has an input terminal 14 and an output terminal 15. On this basis, the vehicle-mounted power supply 1 in this embodiment further 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 direct current. 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, that is, the signal terminal 16 and the low-voltage output terminal 17 are arranged along the thickness direction of the vehicle-mounted power supply 1. That is to say, the signal terminal 16 is arranged at the upper end of the side of the vehicle-mounted power supply 1, and the low-voltage output terminal 17 is arranged at the lower end of the same side.

[0087] And 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. In other words, the distances of the signal terminal 16 and the low-voltage output terminal 17 from the input terminal 14 are not the same. That is to say, the arrangement direction of the signal terminal 16 and the low-voltage output terminal 17 is set at an angle with the thickness direction of the vehicle-mounted power supply 1, that is, the signal terminal 16 and the low-voltage output terminal 17 are arranged staggeredly. Thus, the height occupied by the signal terminal 16 and the low-voltage output terminal 17 in the thickness direction of the vehicle-mounted power supply 1 is less, and further, the thickness of the vehicle-mounted power supply 1 can be reduced, improving the power density of the vehicle-mounted power supply 1.

[0088] Please refer to again Figures 3 - 6 、 Figures 10 - 11, in this embodiment, the filtering component 20 includes an input filtering module 21 and an output filtering module 22, and 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.

[0089] The filtering component 20 includes an input filtering module 21 and an output filtering module 22. The input filtering module 21 is used to process the current input to the vehicle power supply 1, and the output filtering module 22 is used to process 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 arranged below the main power board 11. And the distance between the input filtering module 21 and the main power board 11 is the same as the distance between the output filtering module 22 and the main power board 11, so as to facilitate the main power board 11 to electrically connect the input filtering board and the output filtering board at the same time.

[0090] Please refer to Figure 10 、 Figure 15 , Figure 15 is Figure 10 the front view of the input filtering module shown. In this embodiment, the input filtering module 21 includes a first filtering board 211, a second filtering board 212, and a third filtering board 213. The second filtering board 212 is arranged between the first filtering board 211 and the third filtering board 213. The thickness direction of the first filtering board 211 is the same as the thickness direction of the second filtering board 212, and the thickness direction of the third filtering board 213 is perpendicular to the thickness direction of the second filtering board 212. The second filtering board 212 electrically connects the first filtering board 211 and the third filtering board 213.

[0091] The input filtering module 21 includes a first filtering board 211, a second filtering board 212, and a third filtering board 213. The filtering board is used to install components, including but not limited to capacitors, inductors, resistors, etc. Among them, the second filtering board 212 is arranged between the first filtering board 211 and the third filtering board 213. In other words, the first filtering board 211, the second filtering board 212, and the third filtering board 213 are stacked in sequence. The thickness direction of the first filtering board 211 is the same as the thickness direction of the second filtering board 212. In other words, the plane where the first filtering board 211 is located is parallel to the plane where the second filtering board 212 is located. The thickness direction of the third filtering board 213 is perpendicular to or approximately perpendicular to the thickness direction of the second filtering board 212. In other words, the plane where the third filtering board 213 is located is perpendicular or approximately perpendicular to the plane where the second filtering board 212 is located.

[0092] It should be noted that the thickness direction refers to the direction of the relatively smaller dimension among the length, width, and height of the component. For example, the thickness direction of the first filtering board 211 mentioned in this embodiment isFigure 10 the Z direction in Figure 10 , and the thickness direction of the second filter board 212 is Figure 10 the Z direction in Figure 10 , and the thickness direction of the third filter board 213 is Figure 10 the X direction in Figure 10 . Meanwhile, in this embodiment, "vertical" means an included angle of 90 degrees, and "approximately vertical" means an included angle greater than or equal to 80° and less than 90°.

[0093] As can be seen from the above, in the related art, the filter board is a whole circuit board with a relatively large area, making it difficult to further reduce the volume of the vehicle-mounted 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 that are stacked and vertically arranged. Without affecting the filtering effect, the area of the input filter module 21 in the horizontal direction is reduced. At the same time, various components are arranged between the filter boards. Without exceeding the thickness of the vehicle-mounted power supply 1 itself, the utilization of the space of the input filter module 21 in the thickness direction of the vehicle-mounted power supply 1 is expanded, enabling the volume of the vehicle-mounted power supply 1 to be further reduced and improving the power density of the vehicle-mounted power supply 1.

[0094] Please refer to Figures 15 - 16 , Figure 16 which is a schematic three-dimensional structure diagram of the connection component in an embodiment of the present application. In this embodiment, the filter component 20 further includes a connection component 25. The connection component 25 is arranged between the first filter board 211 and the second filter board 212. The connection component 25 includes a plurality of conductive members 251 and a connection member 252. Opposite ends of the plurality of conductive members 251 penetrate through opposite ends of the connection member 252. One end of the conductive member 251 is electrically connected to the first filter board 211, and the other end is electrically connected to the second filter board 212.

[0095] It can be known from the above that the first filter board 211 and the second filter board 212 are stacked. In this embodiment, the filter component 20 further includes a connection component 25. The connection component 25 is arranged between the first filter board 211 and the second filter board 212, mainly for electrically connecting the first filter board 211 and the second filter board 212, and at the same time for supporting the first filter board 211 and the second filter board 212. The connection component 25 includes a conductive member 251 and a connection member 252. Opposite ends of the conductive member 251 penetrate through opposite ends of the connection member 252. The connection member 252 is the overall housing of the connection component 25, used to space the conductive members 251 apart. The plurality of conductive members 251 are used to form a conductive path to electrically connect the first filter board 211 and the second filter board 212.

[0096] In this embodiment, the first filter board 211 and the second filter board 212 are connected by a connecting component 25. While realizing the electrical connection between the first filter board 211 and the second filter board 212, the connecting component 25 can also support the first filter board 211 and the second filter board 212, so that the first filter board 211 and the second filter board 212 are spaced apart, which is convenient for arranging various components between the first filter board 211 and the second filter board 212.

[0097] Please refer to Figures 17 - 20 , Figure 17 which is a three-dimensional structural schematic diagram of the heat dissipation component in an embodiment of the present application. Figure 18 is Figure 17 an exploded view of the heat dissipation component shown. Figure 19 which is a three-dimensional structural schematic diagram when the auxiliary power board and the heat dissipation component cooperate in an embodiment of the present application. Figure 20 which is an exploded view of the auxiliary power board and the heat dissipation component in an embodiment of the present application.

[0098] In this embodiment, the vehicle-mounted power supply 1 further includes a heat dissipation component 70. The heat dissipation component 70 includes a heat dissipation plate 71 provided on one side of the auxiliary 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 which are stacked. 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.

[0099] The vehicle-mounted power supply 1 further includes a heat dissipation component 70. The heat dissipation component 70 includes a heat dissipation plate 71. The heat dissipation plate 71 is provided on one side of the auxiliary power board 12 and is used to abut against the auxiliary power board 12 to assist the auxiliary power board 12 in dissipating heat. 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 which are stacked. 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 auxiliary 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. At the same time, the second heat dissipation layer 712 is also an insulating layer, so that the third heat dissipation layer 713 and the first heat dissipation layer 711 are insulated from each other. Optionally, the second heat dissipation layer 712 is a ceramic layer. The third heat dissipation layer 713 is used to connect to 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.

[0100] In the related art, the auxiliary power board 12 is generally directly attached to the water channel 50 for heat dissipation. Since the side of the auxiliary power board 12 facing the water channel 50 is usually not a flat surface, the contact between the auxiliary power board 12 and the water channel 50 is not tight, and the heat dissipation efficiency is poor. Of course, there are also some solutions that add a ceramic heat dissipation plate 71 between the auxiliary power board 12 and the water channel 50 to make the contact between the auxiliary power board 12 and the water channel 50 tight on the basis of ensuring the insulation between the auxiliary power board 12 and the heat dissipation mechanism. However, the heat dissipation efficiency of the ceramic heat dissipation plate 71 is low and it is difficult to meet the huge heat generation of the auxiliary power board 12.

[0101] 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 of heat transfer from the auxiliary power board 12 to the second heat dissipation layer 712 is accelerated, and at the same time, the speed of heat transfer from the second heat dissipation layer 712 to the water channel 50 is also accelerated. That is, the heat generated by the auxiliary power board 12 can be conducted to the water channel 50 in time, avoiding the overheating of the auxiliary power board 12.

[0102] In this embodiment, the vehicle-mounted power supply 1 includes a first group of electrolytic capacitors and a second group of electrolytic capacitors, and the first group of electrolytic capacitors is arranged on one side of the water channel 50, and the second group of electrolytic capacitors is arranged on the other side of the water channel 50. The vehicle-mounted power supply 1 has two groups of electrolytic capacitors, namely the first group of electrolytic capacitors and the second group of electrolytic capacitors. The electrolytic capacitors are used to form a resonant circuit together with the inductor for frequency selection and filtering. Among them, both groups of electrolytic capacitors are installed in the filtering component 20 and are arranged between the filtering component 20 and the bottom wall of the housing 30. And the first group of electrolytic capacitors is arranged on one side of the water channel 50, and the second group of electrolytic capacitors is arranged on the other side of the water channel 50. In other words, the first group of electrolytic capacitors and the second group of electrolytic capacitors are respectively arranged on both sides of the water channel 50. That is to say, electrolytic capacitors are provided on both the input side and the output side of the vehicle-mounted power supply in this application, so that the input filtering effect is better, and the output filtering effect is also better. At the same time, the electrolytic capacitors are divided into two groups and arranged on both sides of the water channel 50 respectively, reducing 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 enabling the volume of the vehicle-mounted power supply 1 to be further reduced.

[0103] In this embodiment, the vehicle-mounted power supply 1 further includes an inverter assembly, and the inverter assembly is disposed in the filtering assembly 20. The vehicle-mounted power supply 1 further includes an inverter assembly, and the inverter assembly is used to convert direct current back into alternating current so as to supply power to the circuit outside the vehicle. The inverter assembly is disposed in the filtering assembly 20, that is to say, the inverter assembly and the filtering assembly 20 are integrated into one body and share multiple circuit boards. In the related art, most of the inverter assemblies are independently arranged from the filtering assembly 20, so that the overall volume of the vehicle-mounted power supply 1 is relatively large and it is difficult to improve the power density. In this embodiment, the inverter assembly is integrated into the filtering assembly 20, so that the overall volume of the vehicle-mounted power supply 1 can be further reduced, and thus the power density of the vehicle-mounted power supply 1 can be further increased.

[0104] Please refer to Figures 1 - 3 、 Figure 21 , Figure 21 which is a schematic diagram of the input terminal in an embodiment of the present application. In this embodiment, the vehicle-mounted power supply 1 further includes an input terminal 14, the input terminal 14 is electrically connected to the filtering assembly 20, and the input terminal 14 includes an AC input terminal 141 and an inverter terminal 142. As can be seen from the above content, the inverter assembly can be integrated into the filtering assembly 20, that is, the filtering assembly 20 and the inverter assembly share multiple circuit boards. In this embodiment, the vehicle-mounted power supply 1 further includes an 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 alternating current, and the inverter terminal 142 is used to output alternating current so as to supply power to the electrical appliances outside the vehicle.

[0105] Please refer to Figure 22 , Figure 22 which is Figure 21 a three-dimensional structural schematic diagram of the input terminal shown. Optionally, the input terminal 14 further includes a plurality of input pins 143, and the input pins 143 are used to electrically connect to the filtering assembly 20. Among them, the input pins 143 can be plugged into the filtering assembly 20 by plugging and fixed to the filtering assembly 20 by welding or other means. Further optionally, some of the input pins 143 can be used to electrically connect to the filtering assembly 20, and some of the other input pins 143 can be used to electrically connect to the inverter assembly.

[0106] In the related art, the AC input terminal 141 and the inverter terminal 142 are generally separately arranged. For example, some vehicle-mounted power supplies 1 with an inverter function generally have a separate 4Pin input terminal and a separate 2Pin inverter terminal. In this embodiment, the input terminal and the inverter terminal can be integrated into an overall terminal. For example, the 4Pin input terminal and the 2Pin inverter terminal are integrated into a 6Pin terminal, thereby saving the length of the internal circuit of the vehicle-mounted power supply 1, and further making the structure of the vehicle-mounted power supply 1 more compact and the power density higher.

[0107] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0108] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "a plurality" is two or more, unless otherwise specifically defined. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0109] In the present application, unless otherwise clearly specified and limited, terms such as "installed", "connected", "connected to", "fixed" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated. It may be a mechanical connection or an electrical connection. It may be directly connected or indirectly connected through an intermediate medium, and may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0110] The above has introduced in detail the content provided by the embodiments of the present application, and has elaborated and explained the principles and embodiments of the present application. These explanations are only used to help understand the method and its core idea of the present application. However, the content of this specification should not be construed as a limitation to the present application. Those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. These modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies.

Claims

1. A vehicle-mounted power supply, wherein: The vehicle-mounted power supply includes a shell, a cover plate, a filter assembly, and a power assembly; the shell and the cover plate are arranged to form a receiving space, the filter assembly and the power assembly are arranged in 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 arranged 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 bent to connect the top surface and the bottom surface; the secondary power board is arranged 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, and the main power board electrically connects the filter assembly and the secondary power board.

2. The vehicle-mounted power supply according to claim 1, wherein: The power component includes a plurality of auxiliary power boards, which are divided into at least one first auxiliary power board and at least one second auxiliary power board. The at least one first auxiliary power board and the at least one second auxiliary power board are arranged opposite to each other along the thickness direction of the auxiliary power board.

3. The vehicle-mounted power supply according to claim 1, wherein: The vehicle-mounted power supply also includes a water channel, which is arranged in the shell, and the water channel includes a water inlet, a bending portion, and a water outlet. The water inlet and the water outlet are bent and connected to the bending portion, and the water inlet and the water outlet are located on the same side of the bending portion; the power component includes a plurality of auxiliary power boards, and the plurality of auxiliary power boards are divided into at least one first auxiliary power board and at least one second auxiliary power board. The at least one first auxiliary power board is arranged on the outer side wall of the water inlet, and the at least one second auxiliary power board is arranged on the outer side wall of the water outlet.

4. The vehicle-mounted power supply according to claim 3, wherein: The vehicle-mounted power supply also includes a clamping assembly, which includes a clamping portion and a fixing portion, wherein the fixing portion is bent and connected to the clamping portion, the fixing portion is fixed to the waterway, the clamping portion is arranged on a side of the auxiliary power board away from the waterway, and the clamping portion abuts against the auxiliary power board so that the auxiliary power board abuts against the waterway.

5. The vehicle-mounted power supply according to claim 3, wherein: The vehicle-mounted 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 arranged at one end of the shell and the water inlet and the water outlet are connected to the water channel. The input terminal and the output terminal are arranged at one end of the shell away from the water inlet and the water outlet.

6. The vehicle-mounted power supply according to claim 5, wherein: The vehicle-mounted power supply also includes a signal terminal and a low-voltage output terminal, which are arranged along the arrangement direction of the shell and the cover plate, and 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-mounted power supply according to any one of claims 1 to 6, wherein: The filter assembly includes an input filter module and an output filter module, and the distance between the input filter module and the main power board is equal to the distance between the output filter module and the main power board.

8. The vehicle-mounted power supply according to claim 7, wherein: The input filter module includes a first filter plate, a second filter plate, and a third filter plate. The second filter plate is arranged between the first filter plate and the third filter plate. The thickness direction of the first filter plate is the same as the thickness direction of the second filter plate. The thickness direction of the third filter plate is perpendicular to the thickness direction of the second filter plate. The second filter plate electrically connects the first filter plate and the third filter plate.

9. The vehicle-mounted power supply according to claim 1, wherein: The vehicle-mounted power supply also includes a heat dissipation component, which includes a heat dissipation plate arranged on one side of the auxiliary power board. The heat dissipation plate includes a first heat dissipation layer, a second heat dissipation layer, and a third heat dissipation layer that are stacked. 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-mounted power supply according to claim 3, wherein: The vehicle-mounted power supply includes a first group of electrolytic capacitors and a second group of electrolytic capacitors; and the first group of electrolytic capacitors is arranged on one side of the water channel, and the second group of electrolytic capacitors is arranged on the other side of the water channel.

11. The vehicle-mounted power supply according to claim 1, wherein: The vehicle-mounted power supply further includes an inverter component, and the inverter component is arranged on the filter component.

12. The vehicle-mounted power supply according to claim 11, wherein: The vehicle-mounted power supply further includes an input terminal, the input terminal is electrically connected to the filter component, and the input terminal includes an AC input terminal and an inverter terminal.

Images