Controller box body and vehicle-mounted motor controller

Abstract

The utility model discloses a controller box body and a vehicle-mounted motor controller, and the controller box body comprises a controller lower box body which comprises an installation cavity with an opening in one side, and the installation cavity comprises a filter installation area, a capacitor installation area, a power module installation area, an AC output copper bar installation area and a low-voltage terminal installation area which are arranged in a tiled manner; and the controller cover plate is fixed on the controller lower box body so as to block the opening side of the mounting cavity. According to the invention, the filter installation area, the capacitor installation area, the power module installation area, the AC output copper bar installation area and the low-voltage terminal installation area which are arranged in a tiled manner are formed on the controller lower box body, so that each device of the vehicle-mounted motor controller can be arranged in the installation cavity of the controller lower box body in a tiled manner. Therefore, alternating-current and direct-current devices and high-voltage and low-voltage devices can be arranged in different cavities according to requirements, assembly of the devices is facilitated, and the assembly efficiency is improved. The flat design scheme is adopted, and the electric drive axle structure can adapt to more electric drive axle structures with small heights and sizes.

Description

Technical Field

[0001] This application relates to the field of vehicle motor controller structure technology, and more specifically, to a controller housing and a vehicle motor controller. Background Technology

[0002] The electric drive system is a core component of new energy vehicles, mainly consisting of the motor, on-board motor controller, and reducer. In recent years, with the continuous development of the new energy vehicle industry, electric drive systems are facing requirements for higher integration and higher reliability.

[0003] To improve system integration, existing solutions integrate the on-board motor controller directly with the motor and reducer. The on-board motor controller typically includes a controller housing and, within the housing, filters, capacitors, power modules, and AC busbar modules. The three-phase output of the power module is connected to the three-phase input of the motor via the AC busbar modules.

[0004] Current automotive motor controllers stack power modules and capacitors vertically, which increases the thickness of the controller and hinders the assembly of components within the controller housing. The increased thickness of the automotive motor controller makes it unsuitable for applications in electric drive systems with limited height.

[0005] Therefore, how to facilitate the assembly of devices, improve assembly efficiency, and enable their application in electric drive systems with relatively small dimensions is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] In view of this, the purpose of this application is to provide a controller housing to facilitate the assembly of devices, improve assembly efficiency, and enable its application in electric drive systems with relatively small height dimensions;

[0007] Another objective of this application is to provide an on-board motor controller having the aforementioned controller housing.

[0008] To achieve the above objectives, this application provides the following technical solution:

[0009] The first aspect of this application provides a controller housing, including:

[0010] The lower housing of the controller includes a mounting cavity with an opening on one side. The mounting cavity includes a filter mounting area, a capacitor mounting area, a power module mounting area, an AC output copper busbar mounting area, and a low-voltage terminal mounting area arranged in a flat manner.

[0011] A controller cover is fixed to the lower housing of the controller to block the opening side of the mounting cavity.

[0012] In one possible implementation, the filter mounting area, the capacitor mounting area, the power module mounting area, and the AC output copper busbar mounting area are arranged sequentially from the first side to the second side of the lower housing of the controller.

[0013] In one possible implementation, a high-voltage wiring harness interface is provided on the side wall of the lower housing of the controller. The high-voltage wiring harness interface is used to assemble a high-voltage wiring harness, which is a wiring harness that is electrically connected to the filter installed in the filter mounting area.

[0014] And / or,

[0015] The controller cover plate has assembly screw holes for assembling and disassembling high-voltage wiring harnesses, which are wiring harnesses that are electrically connected to the filter installed in the filter mounting area. The assembly screw holes are provided with sealing screw plugs.

[0016] In one possible implementation, the outer side wall of the lower housing of the controller is provided with a plurality of fixing seats, the fixing seats having fastening holes, so as to fix the lower housing of the controller to the position to be fixed by fasteners;

[0017] And / or,

[0018] The outer side wall of the lower housing of the controller is provided with multiple lifting lugs.

[0019] In one possible implementation, the fixing base is provided with first reinforcing ribs on both sides, which are connected to the outer side wall of the lower housing of the controller;

[0020] And / or,

[0021] The base of the lifting lug is provided with a second reinforcing rib connected to the outer side wall of the lower housing of the controller;

[0022] And / or,

[0023] The lower housing of the controller is provided with multiple lifting lugs on both opposite sides, and each of the lifting lugs on any side is symmetrically arranged along the length direction of that side.

[0024] In one possible implementation, the filter mounting area is provided with a first filter positioning part, which is used to position and cooperate with a second filter positioning part on the filter.

[0025] And / or,

[0026] The filter mounting area is provided with multiple filter fixing supports, which are used to cooperate with fasteners that fix the filter.

[0027] And / or,

[0028] The capacitor mounting area is provided with a first capacitor positioning part, which is used to position and cooperate with a second capacitor positioning part on the capacitor.

[0029] And / or,

[0030] The capacitor mounting area is provided with multiple capacitor fixing support parts, which are used to cooperate with fasteners that fix the capacitor.

[0031] And / or,

[0032] The bottom of the capacitor mounting area is provided with a capacitor mounting plane for fitting with the capacitor and for heat dissipation of the capacitor.

[0033] And / or,

[0034] The power module mounting area includes three power module mounting slots for mounting power modules. Each power module mounting slot is provided with a first power module positioning part, which is used to position and cooperate with a second power module positioning part on the power module.

[0035] And / or,

[0036] Both sides of the power module mounting area are provided with circuit board fixing support parts, which are used to cooperate with fasteners that fix the circuit board, and the circuit board is the circuit board of the power module.

[0037] And / or,

[0038] The AC output copper busbar installation area is provided with multiple AC copper busbar fixing supports, which are used to cooperate with fasteners that fix the AC output copper busbar.

[0039] In one possible implementation, the filter fixing support has a first reinforcing rib;

[0040] And / or,

[0041] The filter fixing support has a first metal threaded sleeve, and the first metal threaded sleeve has a first threaded hole;

[0042] And / or,

[0043] The capacitor fixing support has a second reinforcing rib;

[0044] And / or,

[0045] The capacitor fixing support has a second metal threaded sleeve, and the second metal threaded sleeve has a second threaded hole.

[0046] In one possible implementation, the bottom of the lower housing of the controller has radial reinforcing ribs;

[0047] And / or,

[0048] The AC output copper busbar installation area has an AC copper busbar output interface that extends through the bottom of the lower housing of the controller;

[0049] And / or,

[0050] The lower housing of the controller has a heat dissipation medium channel, one end of which is connected to an inlet pipe and the other end of which is connected to an outlet pipe.

[0051] In one possible implementation, the heat dissipation medium channel includes a side wall water channel and a power module heat dissipation channel located in the power module mounting area. The side wall water channel is located on one side of the capacitor mounting area. The side wall water channel has a heat dissipation pin. The side wall water channel is an open channel and the open side of the side wall water channel is sealed by a side sealing plate. The liquid outlet pipe is disposed on the side sealing plate.

[0052] The heat dissipation channels of the power modules are connected in parallel through heat dissipation branch channels in the three power module mounting slots.

[0053] The controller enclosure provided in this application features a lower enclosure with flatly arranged filter mounting area, capacitor mounting area, power module mounting area, AC output copper busbar mounting area, and low-voltage terminal mounting area. This allows the various components of the vehicle motor controller to be arranged flatly within the mounting cavities of the lower enclosure. Because the mounting areas are arranged flatly, AC / DC components and high / low voltage components can be arranged in separate cavities as needed, facilitating component assembly and improving assembly efficiency. The controller enclosure provided in this application adopts a flat design, which can accommodate more electric drive bridge structures with smaller height dimensions.

[0054] A second aspect of this application provides an on-board motor controller, including: a controller housing as described in any of the preceding claims.

[0055] The vehicle motor controller provided in this application has all the technical effects of the aforementioned controller housing, which will not be elaborated further here. Attached Figure Description

[0056] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0057] Figure 1This is an exploded view of the controller housing disclosed in an embodiment of this application;

[0058] Figure 2 This is a schematic diagram of the internal structure of the lower housing of the controller disclosed in an embodiment of this application;

[0059] Figure 3 This is a schematic diagram of the external structure of the lower housing of the controller disclosed in an embodiment of this application;

[0060] Figure 4 This is a flow diagram of the heat dissipation medium channel of the controller housing disclosed in the embodiments of this application;

[0061] Figure 5 This is a cross-sectional view of the side wall water channel of the controller housing disclosed in an embodiment of this application.

[0062] The meanings of the various reference numerals in the figure are as follows:

[0063] 100 - Controller lower enclosure; 101 - AC output copper busbar mounting area; 102 - Low-voltage terminal mounting area; 103 - Power module mounting area; 104 - Capacitor mounting area; 105 - Capacitor mounting plane; 106 - Filter mounting area; 107 - Cover plate positioning part; 108 - AC copper busbar fixing support part; 109 - Circuit board fixing support part; 110 - First power module positioning part; 111 - First capacitor positioning part; 112 - Capacitor fixing support part; 113 - First reinforcing rib; 114 - First filter positioning part; 115 - Filter fixing support part; 116 - Lifting lug; 117 - Fixing base; 118 - Side sealing plate positioning part; 119 - Heat dissipation pin; 120 - AC copper busbar output interface; 121 - Radial reinforcing rib; 122 - High-voltage wire harness interface; 123 - Sealing ring;

[0064] 200-Controller cover;

[0065] 300-Side sealing plate;

[0066] 400 - Vent valve;

[0067] 501 - Inlet pipe; 502 - Outlet pipe;

[0068] 601 - Sealing plug; 602 - Waterway plug. Detailed Implementation

[0069] One aspect of this application is to provide a controller housing that facilitates device assembly, improves assembly efficiency, and can be used in electric drive systems with relatively small height dimensions.

[0070] Another aspect of this application is to provide an on-board motor controller having the aforementioned controller housing.

[0071] Hereinafter, embodiments will be described with reference to the accompanying drawings. Furthermore, the embodiments shown below do not limit the scope of the application as described in the claims. Additionally, the complete composition represented in the embodiments below is not limited to what is necessary as the solution to the application described in the claims. It should be noted that, for ease of description, only the parts relevant to the application are shown in the drawings. Unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0072] like Figure 1 and Figure 2 As shown in the illustration, this application discloses a controller housing including a lower controller housing 100 and a controller cover 200. The lower controller housing 100 includes a mounting cavity with an opening on one side. This mounting cavity includes a filter mounting area 106, a capacitor mounting area 104, a power module mounting area 103, an AC output copper busbar mounting area 101, and a low-voltage terminal mounting area 102, all arranged in a flat configuration. Specifically, no two of the filter mounting area 106, capacitor mounting area 104, power module mounting area 103, AC output copper busbar mounting area 101, and low-voltage terminal mounting area 102 are stacked in the height direction. It should be noted that the filter mounting area 106, capacitor mounting area 104, power module mounting area 103, AC output copper busbar mounting area 101, and low-voltage terminal mounting area 102 can be separated to form a filter mounting cavity, a capacitor mounting cavity, a power module mounting cavity, an AC output copper busbar mounting cavity, and a low-voltage terminal mounting cavity, respectively.

[0073] Those skilled in the art will understand that the filter mounting area 106 is used to mount filters, the capacitor mounting area 104 is used to mount capacitors, the power module mounting area 103 is used to mount power modules, the AC output copper busbar mounting area 101 is used to mount three-phase output copper busbars, and the low-voltage terminal mounting area 102 is used to mount low-voltage terminals. The low-voltage terminal mounting area 102 is used to isolate low-voltage terminals from common-mode inductors, which is beneficial for EMC (Electromagnetic Compatibility).

[0074] The controller cover 200 is fixed to the lower housing 100 of the controller to seal the opening of the mounting cavity. The controller cover 200 can be fixed to the opening of the lower housing 100 of the controller using fasteners. A sealing ring can be installed at the joint between the two to achieve dust prevention. To facilitate the positioning of the controller cover 200 and the lower housing 100 of the controller, a cover positioning part 107 is provided on the lower housing 100 of the controller. The controller cover 200 is provided with a housing positioning part that mates with the cover positioning part 107. After the cover positioning part 107 and the housing positioning part are aligned, the fastener holes of the controller cover 200 and the lower housing 100 of the controller are aligned. A vent valve 400 can be installed on the side wall of the lower housing 100 of the controller.

[0075] The controller housing disclosed in this application has a lower housing 100 with a flatly arranged filter mounting area 106, a capacitor mounting area 104, a power module mounting area 103, an AC output copper busbar mounting area 101, and a low-voltage terminal mounting area 102. This allows the various components of the vehicle motor controller to be arranged flatly within the mounting cavities of the lower housing 100. Because the mounting areas are arranged flatly, AC / DC components and high / low voltage components can be arranged in separate cavities as needed, facilitating component assembly and improving assembly efficiency. The controller housing provided in this application adopts a flat design, which can accommodate more electric drive bridge structures with smaller height dimensions.

[0076] In one specific embodiment of this application, the filter mounting area 106, capacitor mounting area 104, power module mounting area 103, and AC output copper busbar mounting area 101 are arranged sequentially from the first side to the second side of the lower housing 100 of the controller. The filter mounting area 106 is a high-voltage DC area, and the AC output copper busbar mounting area 101 is a high-voltage AC area. It should be noted that the various mounting areas within the lower housing 100 of the controller can also be arranged in other ways, and those skilled in the art can design according to their needs.

[0077] like Figure 2 and Figure 3 As shown in a specific embodiment of this application, a high-voltage wiring harness interface 122 is provided on the side wall of the lower housing 100 of the controller. The high-voltage wiring harness interface 122 is used to assemble a high-voltage wiring harness, which is a wiring harness electrically connected to the filter installed in the filter mounting area 106. The high-voltage wiring harness electrically connected to the filter can extend into the filter mounting area 106 through the high-voltage wiring harness interface 122 and connect to the filter installed in the filter mounting area 106. The high-voltage wiring harness interface 122 can be opened on the side wall of the lower housing 100 of the controller and arranged adjacent to the wiring terminals of the filter.

[0078] To facilitate the assembly and disassembly of the high-voltage wiring harness, in this embodiment, as follows: Figure 1 As shown, an assembly screw hole is provided on the controller cover 200, located in the area where the high-voltage wiring harness and the filter are connected. The assembly screw hole is used to assemble and disassemble the high-voltage wiring harness. Using a screwdriver or other operating tool, the high-voltage wiring harness can be assembled and disassembled on the filter by inserting it into the assembly screw hole without opening the controller cover 200. This makes wiring convenient, and saves on disassembly and assembly costs because the controller cover 200 does not need to be disassembled.

[0079] In addition, the assembly screw hole can be equipped with a sealing screw plug 601. That is, when the high-voltage wire harness does not need to be disassembled, the sealing screw plug 601 can seal the assembly screw hole, preventing dust from entering the mounting cavity through the assembly screw hole and affecting the service life and safety of the device. When the high-voltage wire harness needs to be disassembled, simply remove the sealing screw plug 601 to expose the assembly screw hole, allowing the use of tools to reach into the assembly screw hole for disassembly and assembly.

[0080] like Figure 2 As shown, the outer side wall of the lower housing 100 of the controller is provided with a plurality of fixing seats 117. The fixing seats 117 have fastening holes to fix the lower housing 100 of the controller to the position to be fixed by fasteners. The number and position of the fixing seats 117 on the lower housing 100 of the controller are not limited. Those skilled in the art should select the setting position and number of fixing seats 117 according to the fixing requirements.

[0081] Since the installation of the controller housing at the installation location mainly relies on the fixing base 117, the strength of the fixing base 117 will affect the installation strength of the controller housing. Based on this, first reinforcing ribs connected to the outer side walls of the lower controller housing 100 can be provided on both sides of the fixing base 117. In this embodiment, by adding first reinforcing ribs that connect the lower controller housing 100 and the fixing base 117 respectively, the strength of the fixing base 117 can be increased, thereby improving the installation strength of the controller housing.

[0082] To facilitate the handling of the controller housing, in one specific embodiment of this application, a plurality of lifting lugs 116 are provided on the outer side wall of the lower controller housing 100. Since the weight of the controller housing acts on the lifting lugs 116 during hoisting, the connection strength between the lifting lugs 116 and the lower controller housing 100 will affect the hoisting safety. Therefore, in this embodiment, a second reinforcing rib connected to the outer side wall of the lower controller housing 100 can be provided at the base of the lifting lugs 116. By adding a second reinforcing rib connected to the lower controller housing 100 at the base of the lifting lugs 116 in this embodiment, the strength of the lifting lugs 116 can be increased, ensuring the hoisting safety of the controller housing.

[0083] To prevent the controller housing from tilting and to ensure it remains level during hoisting, in this embodiment, multiple lifting lugs 116 are provided on both opposite sides of the lower controller housing 100, and the lifting lugs 116 on each side are symmetrically arranged along the length of that side. For example... Figure 2 In the illustrated scheme, two lifting lugs 116 are provided on each of the two opposite sides of the lower housing 100 of the controller, that is, a total of four lifting lugs 116 are provided. The two lifting lugs 116 on any side are symmetrically arranged along the length direction of that side, that is, symmetrical along the centerline of the length direction.

[0084] In one specific embodiment of this application, the filter mounting area 106 is provided with a first filter positioning part 114, which is used to position and cooperate with a second filter positioning part on the filter. During filter installation, to determine the filter's installation position, the second filter positioning part on the filter can be aligned with the first filter positioning part 114, thereby positioning the filter in the corresponding position in the filter mounting area 106. Specifically, the first filter positioning part 114 can be a filter positioning cylinder, and the second filter positioning part can be a filter positioning hole that cooperates with the filter positioning cylinder. It should be noted that the first filter positioning part 114 can also be a filter positioning hole, and the second filter positioning part can be a filter positioning cylinder.

[0085] The filter mounting area 106 may also be provided with multiple filter fixing supports 115, which are used to cooperate with fasteners for fixing the filter. Since the filter fixing supports 115 need to cooperate with fasteners to fix the filter, the filter fixing supports 115 require high strength. Therefore, to improve the strength of the filter fixing supports 115, the filter fixing supports 115 have first reinforcing ribs 113. Specifically, each filter fixing support 115 may have multiple first reinforcing ribs 113 on its outer peripheral surface to increase the strength of the filter fixing supports 115.

[0086] The filter fixing support 115 has a first metal threaded sleeve, and the first metal threaded sleeve has a first threaded hole. In this embodiment, the first threaded hole that mates with the fastener is located in the first metal threaded sleeve, which can give the first threaded hole higher strength and prevent thread stripping. It should be noted that the filter fixing support 115 may also omit the first metal threaded sleeve and directly injection mold the first threaded hole onto the filter fixing support 115.

[0087] After aligning the second filter positioning part on the filter with the first filter positioning part 114, the fastener holes on the filter are aligned with the first screw holes. At this time, the fasteners can pass through the fastener holes on the filter and be locked onto the first screw holes to complete the fixing of the filter.

[0088] The capacitor mounting area 104 may also be provided with a first capacitor positioning part 111, which is used to position and cooperate with a second capacitor positioning part on the capacitor. During capacitor installation, to determine the capacitor's mounting position, the second capacitor positioning part on the capacitor can be aligned with the first capacitor positioning part 111, thereby positioning the capacitor in the corresponding position in the capacitor mounting area 104. Specifically, the first capacitor positioning part 111 can be a capacitor positioning cylinder, and the second capacitor positioning part can be a capacitor positioning hole that mates with the capacitor positioning cylinder. It should be noted that the first capacitor positioning part 111 can also be a capacitor positioning hole, and the second capacitor positioning part can be a capacitor positioning cylinder.

[0089] The capacitor mounting area 104 is provided with multiple capacitor fixing supports 112, which are used to cooperate with fasteners for fixing the capacitors. Since the capacitor fixing supports 112 need to cooperate with fasteners to fix the capacitors, the capacitor fixing supports 112 require high strength. Therefore, to improve the strength of the capacitor fixing supports 112, they have second reinforcing ribs. Specifically, each capacitor fixing support 112 may have multiple second reinforcing ribs on its outer peripheral surface to increase the strength of the capacitor fixing support 112.

[0090] The capacitor fixing support 112 has a second metal threaded sleeve, and the second metal threaded sleeve has a second threaded hole. In this embodiment, the second threaded hole, which mates with the fastener, is located on the second metal threaded sleeve, which can give the second threaded hole higher strength and prevent thread stripping. It should be noted that the capacitor fixing support 112 may also be provided without the second metal threaded sleeve, and the second threaded hole may be directly injection molded on the capacitor fixing support 112.

[0091] After aligning the second capacitor positioning part on the capacitor with the first capacitor positioning part 111, the fastener holes on the capacitor are aligned with the second screw holes. At this time, the fasteners can pass through the fastener holes on the capacitor and be locked onto the second screw holes to complete the fixing of the capacitor.

[0092] The bottom of the capacitor mounting area 104 may be provided with a capacitor mounting surface 105 for contacting the capacitor to dissipate heat from the capacitor; the capacitor mounting surface 105 is in contact with the capacitor, which increases the heat dissipation efficiency of the capacitor.

[0093] The power module mounting area 103 includes three power module mounting slots for mounting power modules. Each power module mounting slot is provided with a first power module positioning part 110, which is used to position and cooperate with a second power module positioning part on the power module. During installation, to determine the installation position of the power module, the second power module positioning part on the power module can be aligned with the first power module positioning part 110, thereby positioning the power module in the corresponding position within the power module mounting slot. Specifically, the first power module positioning part 110 can be a power module positioning cylinder, and the second power module positioning part can be a power module positioning hole that mates with the power module positioning cylinder. It should be noted that the first power module positioning part 110 can also be a power module positioning hole, and the second power module positioning part can be a power module positioning cylinder.

[0094] Both sides of the power module mounting area 103 are provided with circuit board fixing support parts 109. The circuit board fixing support parts 109 are used to cooperate with the fasteners for fixing the circuit board, which is the circuit board of the power module. The circuit board fixing support parts 109 have a third screw hole, and the circuit board has a fastener hole. The fastener passes through the fastener hole on the circuit board and is locked in the third screw hole to fix the circuit board.

[0095] The AC output copper busbar mounting area 101 is provided with multiple AC copper busbar fixing supports 108, which are used to cooperate with fasteners for fixing the AC output copper busbar. The AC copper busbar fixing support 108 has a fourth screw hole, and the AC output copper busbar has a fastener hole. The fastener passes through the fastener hole on the AC output copper busbar and is locked in the fourth screw hole to fix the AC output copper busbar.

[0096] like Figure 3 As shown, in a specific embodiment of this application, the bottom of the lower housing 100 of the controller has radial reinforcing ribs 121. In this embodiment, by adding radial reinforcing ribs 121 to the bottom of the lower housing 100 of the controller, the strength of the lower housing 100 of the controller can be improved, thereby improving the reliability of the vehicle motor controller in a vibration environment.

[0097] The AC output copper busbar mounting area 101 has an AC copper busbar output interface 120 that extends through the bottom of the lower housing 100 of the controller. The output end of the AC output copper busbar extends out of the controller housing through the AC copper busbar output interface 120 and connects to other equipment (such as a motor). It should be noted that a sealing ring can be provided between the AC output copper busbar and the inner wall of the AC copper busbar output interface 120 to prevent dust from entering the housing.

[0098] like Figure 4 and Figure 5As shown in a specific embodiment of this application, the lower housing 100 of the controller has a heat dissipation medium channel. One end of the heat dissipation medium channel is connected to an inlet pipe 501, and the other end is connected to an outlet pipe 502. The heat dissipation medium enters the heat dissipation medium channel through the inlet pipe 501, exchanges heat with the components inside the controller housing, and is discharged through the outlet pipe 502. The heat dissipation medium circulates within the heat dissipation medium channel, continuously carrying away heat from the components to achieve the purpose of heat dissipation. The heat dissipation medium can be a commonly used heat dissipation medium in the prior art, such as water, oil, or refrigerant.

[0099] Because capacitors and power modules generate significant heat, the heat dissipation medium channels can include sidewall channels and power module heat dissipation channels located in the power module mounting area 103. The sidewall channels are located on one side of the capacitor mounting area 104 and contain heat dissipation pins 119. These sidewall channels are open channels, with the open side sealed by a side sealing plate 300. An outlet pipe 502 is mounted on the side sealing plate 300. The heat dissipation pins 119 increase the heat dissipation area of ​​the sidewall channels, improving heat exchange efficiency. Since the sidewall channels are located on one side of the capacitor, heat from the capacitor can be transferred to the heat dissipation pins 119, causing their temperature to rise. When the heat dissipation medium flows through the sidewall channels, it exchanges heat with the heat dissipation pins 119 within the channels, carrying away the heat from the pins and thus reducing the capacitor temperature.

[0100] The side sealing plate 300 is fixed to the opening side of the side wall water channel and is sealed to the side wall of the controller lower housing 100 by a sealing ring 123 to prevent leakage of the heat dissipation medium from the side wall water channel. The side wall water channel can cool the capacitor and the entire controller housing, and the side wall water channel located on the side wall of the controller housing can effectively reduce the thickness of the vehicle motor controller.

[0101] To facilitate the positioning of the side sealing plate 300 on the lower housing 100 of the controller, a side sealing plate positioning part 118 can be provided on the lower housing 100 of the controller. The side sealing plate 300 is provided with a housing positioning part that mates with the side sealing plate positioning part 118. Through the alignment and engagement of the housing positioning part with the side sealing plate positioning part 118, the fastener holes on the side sealing plate 300 and the lower housing 100 of the controller can be aligned to facilitate the tightening of screws.

[0102] The heat dissipation channels of the power modules are connected in parallel within the heat dissipation branch channels in the three power module mounting slots. In this embodiment, the parallel connection of the heat dissipation branch channels in the three power module mounting slots ensures that the three power modules have similar heat dissipation efficiencies, resulting in a more balanced heat dissipation among the three power modules.

[0103] It should be noted that in order to set up a heat dissipation medium channel with a corresponding path on the lower housing 100 of the controller, a corresponding water channel opening must be set on the lower housing 100 of the controller. In order to prevent the heat dissipation medium from leaking at the water channel opening, the water channel opening needs to be sealed with a water channel plug 602.

[0104] This application also discloses an on-board motor controller, including the controller housing disclosed in the above embodiments. Because it has the aforementioned controller housing, it possesses all the technical effects of the aforementioned controller housing, which will not be repeated here.

[0105] As indicated in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "a," and / or "the" are not specifically singular and may include the plural. Generally, the terms "comprising" and "including" only indicate the inclusion of expressly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements. An element defined by the phrase "comprising an..." does not exclude the presence of other identical elements in the process, method, product, or apparatus that includes the element.

[0106] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0107] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0108] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A controller housing, characterized in that, include: The lower housing (100) of the controller includes a mounting cavity with an opening on one side, the mounting cavity including a filter mounting area (106), a capacitor mounting area (104), a power module mounting area (103), an AC output copper busbar mounting area (101), and a low-voltage terminal mounting area (102) arranged in a flat manner. The controller cover (200) is fixed to the lower housing (100) of the controller to block the opening side of the mounting cavity.

2. The controller housing as described in claim 1, characterized in that, The filter mounting area (106), the capacitor mounting area (104), the power module mounting area (103), and the AC output copper busbar mounting area (101) are arranged sequentially from the first side to the second side of the lower housing (100) of the controller.

3. The controller housing as described in claim 1, characterized in that, A high-voltage wiring harness interface (122) is provided on the side wall of the lower housing (100) of the controller. The high-voltage wiring harness interface (122) is used to assemble a high-voltage wiring harness, which is a wiring harness that is electrically connected to the filter installed in the filter mounting area (106). And / or, The controller cover (200) has an assembly screw hole for assembling and disassembling the high-voltage wire harness. The high-voltage wire harness is a wire harness that is electrically connected to the filter installed in the filter mounting area (106). The assembly screw hole is provided with a sealing screw plug (601).

4. The controller housing as described in claim 1, characterized in that, The outer side wall of the lower housing (100) of the controller is provided with a plurality of fixing seats (117), and the fixing seats (117) have fastening holes to fix the lower housing (100) of the controller to the position to be fixed by fasteners. And / or, The outer wall of the lower housing (100) of the controller is provided with multiple lifting lugs (116).

5. The controller housing as described in claim 4, characterized in that, The fixing base (117) is provided with first reinforcing ribs on both sides, which are connected to the outer side wall of the lower housing (100) of the controller; And / or, The base of the lifting lug (116) is provided with a second reinforcing rib connected to the outer side wall of the lower housing (100) of the controller; And / or, The lower housing (100) of the controller is provided with a plurality of lifting lugs (116) on both opposite sides, and each of the lifting lugs (116) on any side is arranged symmetrically along the length direction of that side.

6. The controller housing as described in claim 1, characterized in that, The filter mounting area (106) is provided with a first filter positioning part (114), which is used to position and cooperate with a second filter positioning part on the filter; And / or, The filter mounting area (106) is provided with a plurality of filter fixing supports (115), which are used to cooperate with fasteners for fixing the filter. And / or, The capacitor mounting area (104) is provided with a first capacitor positioning part (111), which is used to position and cooperate with a second capacitor positioning part on the capacitor. And / or, The capacitor mounting area (104) is provided with a plurality of capacitor fixing supports (112), which are used to cooperate with fasteners for fixing capacitors. And / or, The bottom of the capacitor mounting area (104) is provided with a capacitor mounting surface (105) for fitting with the capacitor to dissipate heat from the capacitor. And / or, The power module mounting area (103) includes three power module mounting slots for mounting power modules. Each power module mounting slot is provided with a first power module positioning part, which is used to position and cooperate with a second power module positioning part on the power module. And / or, Both sides of the power module mounting area (103) are provided with circuit board fixing support parts, which are used to cooperate with fasteners for fixing circuit boards. The circuit board is the circuit board of the power module. And / or, The AC output copper busbar installation area (101) is provided with a plurality of AC copper busbar fixing support parts (108), which are used to cooperate with fasteners that fix the AC output copper busbar.

7. The controller housing as described in claim 6, characterized in that, The filter fixing support (115) has a first reinforcing rib (113); And / or, The filter fixing support (115) has a first metal threaded sleeve, and the first metal threaded sleeve has a first threaded hole; And / or, The capacitor fixing support (112) has a second reinforcing rib; And / or, The capacitor fixing support (112) has a second metal threaded sleeve, and the second metal threaded sleeve has a second threaded hole.

8. The controller housing as described in any one of claims 1-7, characterized in that, The bottom of the lower housing (100) of the controller has radial reinforcing ribs (121). And / or, The AC output copper busbar mounting area (101) has an AC copper busbar output interface (120) that extends through the bottom of the lower housing (100) of the controller. And / or, The lower housing (100) of the controller has a heat dissipation medium channel, one end of which is connected to an inlet pipe (501), and the other end of which is connected to an outlet pipe (502).

9. The controller housing as described in claim 8, characterized in that, The heat dissipation medium channel includes a side wall water channel and a power module heat dissipation channel located in the power module mounting area (103). The side wall water channel is located on one side of the capacitor mounting area (104). The side wall water channel has a heat dissipation pin (119). The side wall water channel is an open channel and the opening side of the side wall water channel is sealed by a side sealing plate (300). The liquid outlet pipe (502) is disposed on the side sealing plate (300). The heat dissipation channels of the power modules are connected in parallel through heat dissipation branch channels in the three power module mounting slots.

10. A vehicle-mounted motor controller, characterized in that, include: The controller housing as described in any one of claims 1-9.

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