Electric power device, powertrain, and vehicle

Abstract

The application discloses an electric power device, a power assembly and a vehicle. The electric power device comprises a shell, a power module, an electric control module, a first heat exchange element and a second heat exchange element. The shell comprises a mounting plate and a heat dissipation structure. The mounting plate comprises a first surface and a second surface opposite to each other in a first direction. The first surface has a first region and a second region. The heat dissipation structure is arranged on the second surface and corresponds to the first region and the second region. The power module is arranged on the first region, and the electric control module is arranged on the second region. The first heat exchange element is arranged on the first region, and the first heat exchange element flows cooling medium to exchange heat with the power module. The second heat exchange element is arranged on the second region, and the second heat exchange element flows cooling medium to exchange heat with the electric control module. The heat dissipation structure is connected with the first heat exchange element and the second heat exchange element. The electric power device can shorten the flow path of the flow channel and improve the heat exchange efficiency.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, specifically to an electric device, a powertrain, and a vehicle. Background Technology

[0002] Currently, vehicle power modules and thermal management modules typically use liquid cooling. Each module is designed with independent cooling channels, and the cooling systems of different modules are independent of each other. The coolant in the vehicle needs to be distributed to each module for heat dissipation. The flow path of the channels is long, the structural design is complex, and the heat dissipation efficiency is low. Utility Model Content

[0003] The purpose of this invention is to provide an electric device, powertrain, and vehicle that can shorten the flow path of the flow channel and improve heat exchange efficiency.

[0004] To achieve the objectives of this utility model, the following technical solution is provided:

[0005] In a first aspect, this utility model provides an electric device, including a housing, a power supply module, an electronic control module, a first heat exchanger, and a second heat exchanger. The housing includes a mounting plate and a heat dissipation structure. The mounting plate includes a first surface and a second surface facing away from each other in a first direction. The first surface has a first region and a second region. The heat dissipation structure is disposed on the second surface, corresponding to the first region and the second region. The power supply module is disposed in the first region, and the electronic control module is disposed in the second region. The first heat exchanger is disposed in the first region, and a cooling medium flows through the first heat exchanger to exchange heat with the power supply module. The second heat exchanger is disposed in the second region, and a cooling medium flows through the second heat exchanger to exchange heat with the electronic control module. The heat dissipation structure connects the first heat exchanger and the second heat exchanger.

[0006] In one embodiment, the heat dissipation structure encloses a first flow channel, the first heat exchanger encloses a heat exchange flow channel, the second heat exchanger encloses a heat exchange cavity, and the first flow channel connects the heat exchange flow channel and the heat exchange cavity.

[0007] In one embodiment, the heat dissipation structure further encloses a second flow channel and a third flow channel, and the housing further has an inlet and an outlet spaced apart, the second flow channel connecting the inlet and the heat exchange flow channel, and the third flow channel connecting the heat exchange chamber and the outlet.

[0008] In one embodiment, the inlet extends along a second direction, and / or the outlet extends along the first direction.

[0009] In one embodiment, the first heat exchanger is detachably connected to the mounting plate. The mounting plate has a first heat exchange hole and a second heat exchange hole spaced apart. Both the first heat exchange hole and the second heat exchange hole extend along the first direction and are connected to the heat exchange channel. The first heat exchange hole is connected to the first channel, and the second heat exchange hole is connected to the second channel.

[0010] In one embodiment, the first heat exchanger is a three-dimensional water channel. The first heat exchanger includes a bottom cover, which is disposed on the mounting plate. The bottom cover has a first connecting hole and a second connecting hole spaced apart. The first connecting hole connects the first heat exchange hole and the heat exchange channel, and the second connecting hole connects the second heat exchange hole and the heat exchange channel.

[0011] The mounting plate protrudes towards the first surface to form a water nozzle, which is provided corresponding to the first heat exchange hole and the second heat exchange hole. The power device also includes a sealing element, which is sleeved on the water nozzle and elastically abuts against the bottom cover.

[0012] In one embodiment, the second heat exchanger has a cooling groove with one end open, and the electronic control module includes a power board that closes the opening of the cooling groove to form the heat exchange cavity.

[0013] Secondly, the present invention also provides a powertrain including an electric motor and an electrical device as described in any one of the various embodiments of the first aspect, wherein the electric motor is disposed opposite to the second surface.

[0014] In one embodiment, the motor has a motor water channel through which a cooling medium flows for heat exchange; the motor also has a water inlet and a water outlet, both of which are connected to the motor water channel; the water inlet is connected to the water outlet of the housing; and the water outlet and the water inlet of the housing are located on the same side of the power device.

[0015] Thirdly, the present invention also provides a vehicle including an electric device as described in any one of the various embodiments of the first aspect or a powertrain as described in any one of the various embodiments of the second aspect.

[0016] By integrating a power module and an electronic control module on the first surface of the mounting plate, and setting a first heat exchanger and a second heat exchanger on the first surface to exchange heat between the power module and the electronic control module respectively, the cooling medium flows through the first heat exchanger to exchange heat with the power module, and then flows into the second heat exchanger through the heat dissipation structure to dissipate heat from the electronic control module. There is no need to set up a separate flow channel connection structure, and the heat dissipation structure is set on the second surface of the mounting plate, which does not occupy the space of the first surface, shortens the flow path of the flow channel, and improves the heat exchange efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a perspective view of the powertrain in one embodiment;

[0019] Figure 2 This is a top view of a portion of the powertrain structure in one embodiment;

[0020] Figure 3 This is a top view of another part of the powertrain structure in one embodiment;

[0021] Figure 4 A perspective view of an embodiment of an electrical device;

[0022] Figure 5 This is a perspective view of an electrical device according to one embodiment;

[0023] Figure 6 This is a cross-sectional schematic diagram of a portion of the structure of an electrical device according to one embodiment;

[0024] Figure 7 This is an exploded schematic diagram of the powertrain of one embodiment.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1000-Powertrain;

[0027] 100 - Electrical Equipment;

[0028] 10-Shell, 11-Mounting plate, 111-First surface, 112-Second surface, 113-First region, 114-Second region, 115-First heat exchange hole, 116-Second heat exchange hole, 117-Third heat exchange hole, 118-Fourth heat exchange hole, 119-Water nozzle, 12-Heat dissipation structure, 121-First flow channel, 122-Second flow channel, 1231-First partition wall, 1232-Second partition wall, 1233-Third partition wall, 124-Third flow channel, 125-Water channel cover plate, 13-Mounting shell, 14-Water inlet, 141-Water inlet, 15-Water outlet, 151-Water outlet;

[0029] 20 - Seals;

[0030] 30 - Electronic control module; 31 - Power board;

[0031] 40-First heat exchanger, 41-Heat exchange channel, 42-Bottom cover, 421-First connecting hole, 422-Second connecting hole, 423-Mounting groove, 43-Main body, 431-Accommodation groove;

[0032] 50 - Second heat exchanger, 51 - Heat exchange chamber, 511 - Cooling tank, 512 - Third connecting hole, 513 - Fourth connecting hole;

[0033] 200 - Motor, 201 - Water inlet, 202 - Water outlet;

[0034] X - First direction, Y - Second direction. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only one partial embodiment of the present invention, and not the entire embodiment. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] It should be noted that when a component is said to be "fixed" to another component, it can be directly on the other component or it can be in a middle component. When a component is said to be "connected" to another component, it can be directly connected to the other component or it may be in a middle component.

[0037] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this invention includes any and all combinations of one or more of the associated listed items.

[0038] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0039] Please refer to Figures 1 to 7 This utility model provides a vehicle, including an electrical device 100 as described in this utility model embodiment or a powertrain 1000 as described in this utility model embodiment.

[0040] The vehicle can be an electric vehicle or a hybrid electric vehicle. Currently, the power module and thermal management module of the vehicle typically use liquid cooling for heat dissipation. Each module is designed with independent cooling water channels, and the cooling systems of different modules are independent of each other. The coolant in the vehicle needs to be distributed to each module for heat dissipation. The total water channel has a long flow trajectory, a complex structural design, and low heat dissipation efficiency.

[0041] The vehicle in this embodiment of the present invention uses the electric device 100 or the powertrain 1000 in this embodiment of the present invention, which can integrate the various flow channels in the electric device 100 and the powertrain 1000 into one, reduce the heat loss of the flow channels, and improve the heat exchange efficiency.

[0042] The power device 100 in the embodiments of this utility model will be described in detail below.

[0043] Please refer to Figures 1 to 7 This utility model provides an electric device 100, including a housing 10, a power supply module (not shown in the figure), an electronic control module 30, a first heat exchanger 40, and a second heat exchanger 50.

[0044] First, define the direction; please refer to [the relevant documentation]. Figure 1 X is the first direction X, and Y is the second direction Y. The first direction X and the second direction Y intersect. Optionally, the first direction X and the second direction Y are perpendicular.

[0045] The housing 10 includes a mounting plate 11 and a heat dissipation structure 12. The mounting plate 11 includes a first surface 111 and a second surface 112 that are opposite to each other in a first direction X. The first surface 111 has a first region 113 and a second region 114. The heat dissipation structure 12 is disposed on the second surface 112 and corresponds to the first region 113 and the second region 114.

[0046] The housing 10 is made of a material with high structural strength and good heat dissipation performance, specifically such as metal, carbon fiber composite material, ceramic, etc. Metal materials include aluminum, aluminum alloy, magnesium alloy, titanium alloy, iron, and iron alloys. The housing 10 can be a one-piece structure, meaning the mounting plate 11 and the heat dissipation structure 12 are manufactured using a single molding process, such as stamping or casting, without limitation. Alternatively, the housing 10 can be a separate structure, where the mounting plate 11 and the heat dissipation structure 12 can be connected and fixed by welding, bonding, snap-fitting, screwing, etc. Optionally, the mounting plate 11 can be approximately flat, with a generally uniform wall thickness, and can also have multiple protrusions or grooves, without limitation.

[0047] Optionally, the housing 10 also includes a mounting shell 13, which is connected to the mounting plate 11 and together encloses an accommodating space (not shown in the figure). The surface of the mounting plate 11 facing away from the mounting shell 13 is the second surface 112, and the power module, the electronic control module 30, the first heat exchanger 40 and the second heat exchanger 50 can all be accommodated in the accommodating space.

[0048] The power supply module is located in the first region 113, and the electronic control module 30 is located in the second region 114. The first heat exchanger 40 is located in the first region 113, and the first heat exchanger 40 flows with a cooling medium to exchange heat with the power supply module. The second heat exchanger 50 is located in the second region 114, and the second heat exchanger 50 flows with a cooling medium to exchange heat with the electronic control module 30. The heat dissipation structure 12 connects the first heat exchanger 40 and the second heat exchanger 50.

[0049] The power module includes, but is not limited to, functional components such as the On-Board Charger (OBC) 200 and the DC-DC Converter (DCDC). Specifically, the OBC is used to convert external alternating current (AC) into direct current (DC) to charge the vehicle's battery pack; the DC-DC converter, as a power conversion device, is used to convert one DC voltage to another, typically used to convert the voltage of the high-voltage battery pack to a low-voltage power supply for use by the vehicle's low-voltage electrical system.

[0050] The electronic control module 30 may include heat-generating devices, such as metal-gate field-effect transistors (MOS). When the electronic control module 30 is operating, these heat-generating devices need to dissipate heat to prevent the electronic control device from burning out due to overheating. The electronic control module 30 may also include other functional devices; this embodiment of the invention does not limit this.

[0051] In some embodiments, the functional devices in the power supply module and the electronic control module 30 have a default assembly direction and structure. The power supply device and the electronic control device can also determine the assembly direction and structure according to the user's requirements. This utility model embodiment does not limit this.

[0052] Optionally, in one specific embodiment, when the power device 100 is placed horizontally on the ground, the first direction X is the direction of gravity, the second surface 112 faces the ground, and the power module and the electronic control module 30 are disposed on the side of the mounting plate 11 facing away from the ground. The mounting plate 11 can provide support for the power module and the electronic control module 30.

[0053] The first region 113 and the second region 114 can be arranged adjacent to each other, or they can be spaced apart; there are no restrictions. Both the first heat exchanger 40 and the second heat exchanger 50 can be any feasible structure in the art capable of allowing a flowing cooling medium to exchange heat with the device; there are no specific limitations. In some embodiments, the first heat exchanger 40 and the second heat exchanger 50 can be three-dimensional water channels, planar water channels, flow plates, etc., and the cooling medium can be water, ethylene glycol solution, mineral oil, fluorinated liquid, deionized water, etc.; there are no specific limitations.

[0054] Optionally, the heat dissipation structure 12 can be a structure that can carry cooling medium, such as a pipe, water channel, or flow channel plate. It can be set according to the actual situation and there are no restrictions.

[0055] The power device 100 in this embodiment integrates a power module and an electronic control module 30 on the first surface 111 of the mounting plate 11. A first heat exchanger 40 and a second heat exchanger 50 are provided on the first surface 111 to exchange heat between the power module and the electronic control module 30, respectively. After the cooling medium flows through the first heat exchanger 40 to exchange heat with the power module, it can flow into the second heat exchanger 50 through the heat dissipation structure 12 to dissipate heat from the electronic control module 30. There is no need to set up a separate flow channel connection structure. Moreover, the heat dissipation structure 12 is set on the second surface 112 of the mounting plate 11, which does not occupy the space of the first surface 111, thus shortening the flow path of the flow channel and improving the heat exchange efficiency.

[0056] In one embodiment, such as Figure 3 , Figure 4 and Figure 6 As shown, the heat dissipation structure 12 encloses a first flow channel 121, the first heat exchanger 40 encloses a heat exchange flow channel 41, and the second heat exchanger 50 encloses a heat exchange cavity 51. The first flow channel 121 connects the heat exchange flow channel 41 and the heat exchange cavity 51.

[0057] The first flow channel 121 can be a planar flow channel, a three-dimensional flow channel, or any other feasible flow channel structure. The first flow channel 121 can extend approximately along any one or a combination of straight lines, curves, or broken lines without restriction.

[0058] Optionally, the heat dissipation structure 12 includes a first partition wall 1231, which protrudes from the second surface 112 and encloses a first flow channel 121; or, the first flow channel 121 may also be formed inside the mounting plate 11, that is, the plate body of the mounting plate 11 is recessed from one side of the second surface 112 to form the first flow channel 121, and there is no specific limitation.

[0059] Optionally, the first flow channel 121 and the heat exchange flow channel 41 can be directly connected, or they can be indirectly connected through other structures, such as by connecting the first flow channel 121 and the heat exchange flow channel 41 through additional joints or pipes, without limitation. Similarly, the connection method between the first flow channel 121 and the heat exchange chamber 51 can be referred to the connection method between the first flow channel 121 and the heat exchange flow channel 41, and will not be described again.

[0060] By setting the first flow channel 121 of the heat dissipation structure 12 to connect the heat exchange flow channel 41 of the first heat exchanger 40 and the heat exchange cavity 51 of the second heat exchanger 50, the first flow channel 121, the heat exchange flow channel 41 and the heat exchange cavity 51 are all integrated on the mounting plate 11, which can improve the integration of the power device 100 and simplify the overall flow channel layout of the power device 100.

[0061] In one embodiment, such as Figure 4 As shown, the heat dissipation structure 12 also encloses a second flow channel 122 and a third flow channel 124. The shell 10 also has an inlet 141 and an outlet 151 spaced apart. The second flow channel 122 connects the inlet 141 with the heat exchange flow channel 41, and the third flow channel 124 connects the heat exchange chamber 51 with the outlet 151.

[0062] The structures of the second flow channel 122 and the third flow channel 124 can refer to the aforementioned structure of the first flow channel 121, and will not be described again. Optionally, the heat dissipation structure 12 also includes a second partition wall 1232 and a third partition wall 1233. The second partition wall 1232 is disposed on the second surface 112 and encloses the second flow channel 122, and the third partition wall 1233 is disposed on the second surface 112 and encloses the third flow channel 124. Optionally, the first partition wall 1231, the second partition wall 1232, and the third partition wall 1233 are spaced apart and are not directly connected to each other to avoid cross-flow of the cooling medium in the flow channels and ensure the cooling effect.

[0063] Optional, such as Figure 5 As shown, the heat dissipation structure 12 also includes a water channel cover 125, which is detachably connected to the end of the partition wall away from the second surface 112 and is used to close the opening of the partition wall to form a flow channel. It is understood that the partition wall includes any one or more of the first partition wall 1231, the second partition wall 1232, and the third partition wall 1233, and the flow channel includes any one or more of the first flow channel 121, the second flow channel 122, and the third flow channel 124.

[0064] The shape, size, and number of the inlet 141 and outlet 151 can be implemented in any feasible manner, and no specific limitations are imposed. In one specific embodiment, such as Figure 4 and Figure 5As shown, the housing 10 includes a water inlet 14 and a water outlet 15. The water inlet 14 and the water outlet 15 are spaced apart on the mounting plate 11. The water inlet 14 has a water inlet 141, which is connected to the second flow channel 122. The water outlet 15 has a water outlet 151, which is connected to the third flow channel 124.

[0065] When the power device 100 is working, a cooling medium is required to exchange heat between the power supply module and the electronic control module 30. At this time, the cooling medium enters the second flow channel 122 through the inlet 141 of the housing 10, and flows into the heat exchange flow channel 41 of the first heat exchanger 40 to exchange heat with the power supply module. Then, the cooling medium flows out from the heat exchange flow channel 41 to the first flow channel 121, and flows into the heat exchange chamber 51 of the second heat exchanger 50 to exchange heat with the electronic control module 30. Then, the cooling medium flows out from the heat exchange chamber 51 to the third flow channel 124, and flows out of the housing 10 through the outlet 151, thus completing the heat dissipation of the multiple functional devices integrated in the housing 10.

[0066] Optionally, when the cooling medium flows out from the heat exchange channel 41 to the first channel 121 and from the heat exchange chamber 51 to the third channel 124, since the shell 10 can be made of a material with good heat dissipation performance, part of the heat carried out by the cooling medium can be conducted to the shell 10 as a whole and exchanged with the outside through air cooling or other means, thereby further improving the heat exchange efficiency.

[0067] The heat dissipation structure 12 also encloses a second flow channel 122 and a third flow channel 124. The second flow channel 122 connects the water inlet 141 of the shell 10 with the heat exchange flow channel 41, and the third flow channel 124 connects the heat exchange chamber 51 with the water outlet 151 of the shell 10. The first heat exchanger 40 and the second heat exchanger 50 share a water inlet 141 and a water outlet 151, which can simplify the heat dissipation layout, reduce heat loss, and improve heat exchange efficiency.

[0068] In one embodiment, such as Figure 4 and Figure 5 As shown, the inlet 141 extends along the second direction Y, and / or the outlet 151 extends along the first direction X.

[0069] Optionally, the first direction X can be the direction of gravity, and the second direction Y can be the horizontal direction. With this configuration, the cooling medium flows into the power device 100 from the horizontal direction, flows through the first heat exchanger 40 and the second heat exchanger 50 in the direction of gravity to dissipate heat, and then flows out. This can increase the flow path length of the cooling medium in the heat dissipation area, prolong its contact time with the heat source, and thus improve the heat exchange efficiency.

[0070] Optionally, the orientation of the inlet 141 and outlet 151 can be adjusted according to the assembly requirements between the power unit 100 and other devices to avoid assembly conflicts with other devices.

[0071] In one embodiment, such as Figure 4 and Figure 6 As shown, the first heat exchanger 40 is detachably connected to the mounting plate 11. The mounting plate 11 has a first heat exchange hole 115 and a second heat exchange hole 116 spaced apart. Both the first heat exchange hole 115 and the second heat exchange hole 116 extend along the first direction X and are connected to the heat exchange channel 41. The first heat exchange hole 115 is connected to the first channel 121, and the second heat exchange hole 116 is connected to the second channel 122.

[0072] The connection method between the first heat exchanger 40 and the mounting plate 11 can be adhesive, snap-fit, screw, riveting, etc., without restriction.

[0073] The shapes of the first heat exchange hole 115 and the second heat exchange hole 116 can be square, circular, triangular, regular polygonal, etc., without limitation. Optionally, both the first heat exchange hole 115 and the second heat exchange hole 116 penetrate the first surface 111 and the second surface 112. The cooling medium in the second flow channel 122 enters the heat exchange flow channel 41 through the second heat exchange hole 116, flows out of the heat exchange flow channel 41, and then enters the first flow channel 121 through the first heat exchange hole 115.

[0074] Optionally, the first partition wall 1231 includes a first end connected to the first heat exchanger 40, and the second partition wall 1232 includes a second end connected to the first heat exchanger 40. The outer surfaces of the first end and the second end are smoothly connected by a connecting wall. The first heat exchange hole 115 is disposed at the first end, and the second heat exchange hole 116 is disposed at the second end. Alternatively, the first end and the second end may also have a certain interval. The arrangement of the first heat exchange hole 115 and the second heat exchange hole 116 can correspond to the openings at both ends of the heat exchange channel 41 of the first heat exchanger 40, without any limitation.

[0075] By setting a first heat exchange hole 115 and a second heat exchange hole 116 extending along the first direction X, compared to a flow channel structure only set on one side, the cooling medium can flow between the first surface 111 and the second surface 112 of the mounting plate 11 through the first heat exchange hole 115 and the second heat exchange hole 116, thereby improving the heat exchange efficiency. There is no need to set a separate flow channel structure on the first surface 111 to flow the cooling medium into the first heat exchanger 40, thus achieving three-dimensional heat dissipation of the flow channel.

[0076] In one embodiment, such as Figure 6As shown, the first heat exchanger 40 is a three-dimensional water channel. The first heat exchanger 40 includes a bottom cover 42, which is placed on the mounting plate 11. The bottom cover 42 has a first connecting hole 421 and a second connecting hole 422 spaced apart. The first connecting hole 421 connects the first heat exchange hole 115 and the heat exchange channel 41, and the second connecting hole 422 connects the second heat exchange hole 116 and the heat exchange channel 41.

[0077] The connection between the bottom cover 42 and the mounting plate 11 can be made by welding, bonding, snap-fitting, screwing, riveting, etc., without any restrictions.

[0078] Optionally, in the orthographic projection of the first direction X, the first connecting hole 421 and the second connecting hole 422 can be located on the same side or opposite sides of the bottom cover 42, without limitation. For example, if the first connecting hole 421 and the second connecting hole 422 are located on opposite sides of the bottom cover 42, the heat exchange channel 41 can be a unidirectional channel or an "S"-shaped channel; or, if the first connecting hole 421 and the second connecting hole 422 are spaced apart and located on the same side of the bottom cover 42, the heat exchange channel 41 can be a "U"-shaped channel, without limitation.

[0079] Optionally, the first heat exchanger 40 also includes a main body 43. One end of the main body 43 is connected to the bottom cover 42 and together they enclose the heat exchange channel 41. The end of the main body 43 away from the bottom cover 42 has a receiving groove, and the heat exchange channel 41 surrounds the bottom wall and all four side walls of the receiving groove. With this configuration, the power module can be placed in the receiving groove, and the cooling medium can flow three-dimensionally within the heat exchange channel 41 to exchange heat with the power module. The contact area is large, which can improve the heat exchange effect.

[0080] The mounting plate 11 protrudes towards the first surface 111 to form a water nozzle 119. The water nozzle 119 is provided corresponding to the first heat exchange hole 115 and the second heat exchange hole 116. The power device 100 also includes a sealing element 20, which is sleeved on the water nozzle 119 and elastically abuts against the bottom cover 42.

[0081] The water nozzle 119 is used to deliver the cooling medium. Optionally, the number of water nozzles 119 can be one or two. When there is one water nozzle 119, the water nozzle 119 has two through holes spaced apart, one through hole connecting the first heat exchange hole 115 and the first connecting hole 421, and the other through hole connecting the second heat exchange hole 116 and the second connecting hole 422; the water nozzle 119 can also be two, each water nozzle 119 having one through hole, one water nozzle 119 connecting the first heat exchange hole 115 and the first connecting hole 421, and the other water nozzle 119 connecting the second heat exchange hole 116 and the second connecting hole 422. The shape and number of water nozzles 119 can also be adopted in any other feasible manner, without limitation.

[0082] The faucet 119 and the mounting plate 11 can be an integral structure, or the faucet 119 can also be a structure similar to a pipe joint, and can be connected and fixed to the mounting plate 11 by welding, bonding, snap-fitting, screwing or other means, without limitation.

[0083] Optional, such as Figure 6 As shown, the bottom cover 42 also has a mounting groove 423. The bottom wall of the mounting groove 423 has a first connecting hole 421 and a second connecting hole 422. The water nozzle 119 is detachably inserted into the mounting groove 423 and elastically abuts against the side wall of the mounting groove 423 through the sealing member 20.

[0084] The sealing element 20 can be any commonly used sealing element 20 by those skilled in the art, such as a sealing ring or a sealing gasket, without limitation. The material of the sealing element 20 can be thermoplastic elastomer (TPE) plastic, thermoplastic polyurethane (TPU) plastic, polyvinyl chloride (PVC) plastic, silicone, rubber, etc., without specific limitations. The sealing element 20 can be connected to the outer peripheral wall of the water nozzle 119, or it can be pre-set in the side wall of the mounting groove 423. When the water nozzle 119 is inserted into the mounting groove 423, it can elastically abut against the outer peripheral wall of the water nozzle 119 and the side wall of the mounting groove 423, without specific limitations.

[0085] By setting the first heat exchanger 40 as a three-dimensional water channel, the mounting plate 11 has a water nozzle 119, and the water nozzle 119 and the bottom cover 42 of the first heat exchanger 40 are elastically abutted by a sealing element 20, resulting in high heat exchange efficiency. The sealing connection between the first heat exchanger 40 and the shell 10 can be achieved through the sealing element 20. Compared with the existing method of sealing the water channel by means of welding, the sealing method in this embodiment is simple and efficient. When the first heat exchanger 40 or the shell 10 needs to be replaced, the disassembly and assembly of each part is convenient and easy to maintain.

[0086] In one embodiment, such as Figure 2 and Figure 3 As shown, the second heat exchanger 50 has a cooling groove 511 with one end open, and the electronic control module 30 includes a power board 31, which closes the opening of the cooling groove 511 to form a heat exchange chamber 51.

[0087] The power board 31 can adopt any feasible power board 31 structure in the art, and this utility model does not limit it. Optionally, the surface of the power board 31 facing the cooling tank 511 is used to close the opening of the cooling tank 511, and the surface of the power board 31 facing away from the cooling tank 511 is used to install and fix power devices (such as power transistors, power modules, etc.), which has a good heat dissipation effect and eliminates the need for an additional sealing structure to seal the second heat exchanger 50, thus saving costs.

[0088] Optionally, the second heat exchanger 50 can be detachably connected to the mounting plate 11, and the connection method can be adhesive, snap-fit, screw, rivet, magnetic connection, etc., without limitation; or, the second heat exchanger 50 and the mounting plate 11 can also be an integral structure, without limitation. Optionally, additional flow channels can be provided in the cooling tank 511, or the cooling medium can flow directly in the cooling tank 511, without limitation.

[0089] Optional, such as Figure 3 and Figure 4 As shown, the bottom wall of the cooling tank 511 also has a third connecting hole 512 and a fourth connecting hole 513 spaced apart. The mounting plate 11 also has a third heat exchange hole 117 and a fourth heat exchange hole 118 spaced apart. Both the third heat exchange hole 117 and the fourth heat exchange hole 118 extend along the first direction X, and the third heat exchange hole 117 communicates with the third connecting hole 512, and the fourth heat exchange hole 118 communicates with the fourth connecting hole 513. Through the third connecting hole 512 and the fourth connecting hole 513, the cooling medium can flow from the second surface 112 to the second heat exchange element 50 on the first surface 111, realizing three-dimensional heat dissipation of the flow channel.

[0090] The shapes of the third connecting hole 512, the fourth connecting hole 513, the third heat exchange hole 117, and the fourth heat exchange hole 118 can be square, circular, triangular, regular polygonal, etc., without limitation. Optionally, the cooling medium in the first flow channel 121 enters the heat exchange chamber 51 through the third connecting hole 512 after passing through the third heat exchange hole 117, flows out of the heat exchange chamber 51, and then enters the third flow channel 124 through the fourth connecting hole 513 and the fourth heat exchange hole 118.

[0091] Optionally, the positions of the third connecting hole 512 and the fourth connecting hole 513 on the bottom wall of the cooling tank 511 can be referenced to the positions of the first connecting hole 421 and the second connecting hole 422 on the bottom cover 42, and will not be described again. The positions of the third heat exchange hole 117 and the fourth heat exchange hole 118 can correspond to the positions of the third connecting hole 512 and the fourth connecting hole 513.

[0092] By setting the second heat exchanger 50 to have a cooling groove 511 with one end open, the power board 31 of the electronic control module 30 closes the opening of the cooling groove 511 and forms a heat exchange chamber 51. The cooling medium can directly contact the power board 31 and exchange heat with the functional devices on the surface of the power board 31 facing away from the cooling groove 511. The heat exchange efficiency is high. When the second heat exchanger 50 or the power board 31 needs to be replaced, the disassembly and assembly of each part is convenient and easy to maintain.

[0093] Please refer to Figure 1 and Figure 7 This utility model embodiment also provides a power assembly 1000, including a motor 200 and an electrical device 100 in this utility model embodiment, wherein the motor 200 is disposed opposite to the second surface 112.

[0094] The motor 200 is used to convert electrical energy into mechanical energy to provide power for the vehicle. Optionally, the motor 200 and the housing 10 of the power unit 100 can be connected and fixed by welding, bonding, snap-fitting, screwing, riveting, etc., without limitation.

[0095] In some embodiments, the motor 200 and the power device 100 are provided with a default assembly direction and structure. The assembly direction and structure of the motor 200 and the power device 100 can also be determined according to the user's requirements. This embodiment of the present invention does not limit this.

[0096] Optionally, the electrical control module also includes a motor controller for controlling the motor 200. Integrating the control device of the motor 200 into the power unit 100 can reduce the space occupied by the motor 200 and improve the integration of the power assembly.

[0097] In this embodiment of the utility model, the motor 200 and the power device 100 are integrated into a power assembly 1000, which can reduce the overall space occupation and achieve a high degree of integration.

[0098] In one embodiment, such as Figure 7 As shown, the motor 200 has a motor water channel (not shown in the figure) through which a cooling medium flows for heat exchange; the motor 200 also has a water inlet 201 and a water outlet 202, and both the water inlet 201 and the water outlet 202 are connected to the motor water channel. The water inlet 201 is connected to the water outlet 151 of the housing 10, and the water outlet 202 is located on the same side of the power device 100 as the water inlet 141 of the housing 10.

[0099] The water channel is integrated within the motor 200, and its specific arrangement is not limited. Optionally, the water inlet 201 extends along the first direction X and communicates with the water outlet 151, and / or the water outlet 202 extends along the second direction Y.

[0100] Optional, such as Figure 7 As shown, the water outlet 202 and the water inlet 141 are located on the same side of the power unit 100, which facilitates the water inlet and outlet circuit settings of the power assembly 1000 as a whole.

[0101] In one specific embodiment, such as Figure 3 , Figure 4 and Figure 7As shown, the arrows indicate the flow direction of the cooling medium within the powertrain. The cooling medium enters the second flow channel 122 of the heat dissipation structure 12 through the inlet 141 of the housing 10, and flows from the second surface 112 into the first heat exchanger 40 on the side of the first surface 111 to exchange heat with the power module. Then, the cooling medium flows out from the first heat exchanger 40 into the first flow channel 121 of the second surface 112, and then flows through the first flow channel 121 into the second heat exchanger 50 on the side of the first surface 111 to exchange heat with the electronic control module 30. After that, the cooling medium flows out from the second heat exchanger 50 into the third flow channel 124 of the second surface 112, and from the third flow channel 124 through the outlet 151 into the motor water channel of the motor 200 to exchange heat with the motor 200. Finally, it flows out from the outlet 202 of the motor 200, completing one cooling cycle. With the above configuration, the heat exchange channels of the power module, the electronic control module 30 and the motor 200 in the powertrain 1000 are integrated into one unit and share a common inlet 141 and outlet 202. There is no need to set flow channels for the heat exchange structure of each part separately, which simplifies the flow channel layout, reduces heat loss of the flow channel, and improves heat exchange efficiency.

[0102] In the description of the embodiments of this utility model, it should be noted that the orientation or positional relationship of the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and other indicators are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0103] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art will understand that implementing the entire or partial processes of the above embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the present utility model.

Claims

1. An electric power device (100), characterized in that, include: The housing (10) includes a mounting plate (11) and a heat dissipation structure (12). The mounting plate (11) includes a first surface (111) and a second surface (112) opposite to each other in a first direction. The first surface (111) has a first region (113) and a second region (114). The heat dissipation structure (12) is disposed on the second surface (112) and corresponds to the first region (113) and the second region (114). A power supply module and an electronic control module (30), wherein the power supply module is disposed in the first region (113) and the electronic control module (30) is disposed in the second region (114); A first heat exchanger (40) and a second heat exchanger (50) are provided. The first heat exchanger (40) is disposed in the first region (113) and a cooling medium flows through the first heat exchanger (40) to exchange heat with the power supply module. The second heat exchanger (50) is disposed in the second region (114) and a cooling medium flows through the second heat exchanger (50) to exchange heat with the electronic control module (30). The heat dissipation structure (12) connects the first heat exchanger (40) and the second heat exchanger (50).

2. The power device (100) according to claim 1, characterized in that, The heat dissipation structure (12) encloses a first flow channel (121), the first heat exchanger (40) encloses a heat exchange flow channel (41), the second heat exchanger (50) encloses a heat exchange cavity (51), and the first flow channel (121) connects the heat exchange flow channel (41) and the heat exchange cavity (51).

3. The power device (100) according to claim 2, characterized in that, The heat dissipation structure (12) also encloses a second flow channel (122) and a third flow channel (124). The shell (10) also has an inlet (141) and an outlet (151) spaced apart. The second flow channel (122) connects the inlet (141) and the heat exchange flow channel (41). The third flow channel (124) connects the heat exchange chamber (51) and the outlet (151).

4. The power device (100) according to claim 3, characterized in that, The inlet (141) extends in the second direction, and / or the outlet (151) extends in the first direction.

5. The power device (100) according to claim 3, characterized in that, The first heat exchanger (40) is detachably connected to the mounting plate (11). The mounting plate (11) has a first heat exchange hole (115) and a second heat exchange hole (116) spaced apart. The first heat exchange hole (115) and the second heat exchange hole (116) both extend along the first direction and are connected to the heat exchange channel (41). The first heat exchange hole (115) is connected to the first channel (121), and the second heat exchange hole (116) is connected to the second channel (122).

6. The power device (100) according to claim 5, characterized in that, The first heat exchanger (40) is a three-dimensional water channel. The first heat exchanger (40) includes a bottom cover (42), which covers the mounting plate (11). The bottom cover (42) has a first connecting hole (421) and a second connecting hole (422) spaced apart. The first connecting hole (421) connects the first heat exchange hole (115) and the heat exchange channel (41), and the second connecting hole (422) connects the second heat exchange hole (116) and the heat exchange channel (41). The mounting plate (11) protrudes towards the first surface (111) and forms a water nozzle (119). The water nozzle (119) is provided corresponding to the first heat exchange hole (115) and the second heat exchange hole (116). The power device (100) also includes a sealing member (20). The sealing member (20) is sleeved on the water nozzle (119) and elastically abuts against the bottom cover (42).

7. The power device (100) according to claim 3, characterized in that, The second heat exchanger (50) has a cooling groove (511) with one end open. The electronic control module (30) includes a power board (31), which closes the opening of the cooling groove (511) to form the heat exchange chamber (51).

8. A powertrain (1000), characterized in that, It includes a motor (200) and an electrical device (100) as claimed in any one of claims 1 to 7, wherein the motor (200) is disposed opposite to the second surface (112).

9. The powertrain (1000) according to claim 8, characterized in that, The motor (200) has a motor (200) water channel through which a cooling medium flows for heat exchange; the motor (200) also has a water inlet (201) and a water outlet (202), and both the water inlet (201) and the water outlet (202) are connected to the motor (200) water channel. The water inlet (201) is connected to the water outlet (151) of the housing (10), and the water outlet (202) and the water inlet (141) of the housing (10) are located on the same side of the power device (100).

10. A vehicle, characterized in that, Includes the electrical device (100) as described in any one of claims 1 to 7 or the powertrain (1000) as described in claim 8 or 9.

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