Controller and electric vehicle

By incorporating a through-groove and connecting post into the electric vehicle controller housing, the problem of adjusting the installation direction of the electric vehicle controller is solved, enabling convenient connection between the power supply and the motor and improving installation efficiency.

CN224068958UActive Publication Date: 2026-03-31SHENZHEN MEGMEET ELECTRICAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-10
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

During the installation of electric vehicle controllers, the controller orientation needs to be adjusted so that the power connection post and motor connection post face the corresponding power source and motor, resulting in low installation efficiency.

Method used

Design a controller with a vertically extending positioning block on the housing to form a through positioning groove. A connecting post passes through the positioning groove, and the power supply and motor connection lines are located in the positioning groove. The positioning groove is through in a second direction, allowing the power supply and motor to be directly connected without adjusting the controller's orientation.

Benefits of technology

The positioning slot design reduces the shaking of the power supply and motor connection cables, simplifies the installation process, and improves the installation efficiency of the controller.

✦ Generated by Eureka AI based on patent content.

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Abstract

The embodiment of the utility model relates to the technical field of electric vehicles, and particularly discloses a controller and an electric vehicle, the controller comprises a shell, the shell is provided with an accommodating cavity, the shell extends along the vertical direction to form a plurality of positioning blocks, the plurality of positioning blocks are arranged at intervals along the first direction, the adjacent positioning blocks are spaced to form a positioning groove, the positioning groove is communicated with the accommodating cavity, and the accommodating cavity is provided with a plurality of through holes; the positioning groove is communicated in the second direction, and the second direction is perpendicular to the first direction and the vertical direction. And the control circuit board is arranged in the containing cavity, the control circuit board is provided with a plurality of first connecting columns and a plurality of second connecting columns, one part of one first connecting column penetrates through the shell and is located in one positioning groove, and one part of one second connecting column penetrates through the shell and is located in the other positioning groove. By means of the mode, the direction of the controller can be adjusted, then the installation efficiency of the controller is improved, and convenience is achieved.
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Description

Technical Field

[0001] This application relates to the field of electric vehicle technology, and in particular to a controller and an electric vehicle. Background Technology

[0002] Electric vehicles are a convenient and fast means of transportation, and their important structure includes a controller for controlling various electronic devices. In related technologies, electric vehicle controllers are equipped with power connection posts and motor connection posts. The power connection posts are used to connect to the power source, and the motor connection posts are used to connect to the motor. The power connection posts and motor connection posts are usually located on different sides or the same side of the controller.

[0003] In the process of developing this application, the inventors discovered that during the installation of the controller, the user needs to adjust the controller's orientation so that the power connection post on the controller faces the power source of the electric vehicle, and the motor connection post faces the motor of the electric vehicle. The installation efficiency of the controller still needs to be improved. Utility Model Content

[0004] In view of the above problems, embodiments of this application provide a controller and an electric vehicle that overcome or at least partially solve the above problems.

[0005] According to one aspect of this application, a controller is provided, comprising: a housing having a receiving cavity, the housing having a plurality of positioning blocks extending in a vertical direction, the plurality of positioning blocks being spaced apart in a first direction, adjacent positioning blocks forming positioning grooves at intervals, the positioning grooves communicating with the receiving cavity and extending in a second direction, the second direction being perpendicular to the first direction and the vertical direction; and a control circuit board disposed within the receiving cavity, the control circuit board having a plurality of first connecting posts and a plurality of second connecting posts, a portion of one of the first connecting posts penetrating the housing and located within one of the positioning grooves, and a portion of one of the second connecting posts penetrating the housing and located within another of the positioning grooves.

[0006] In one alternative, the plurality of first connecting posts are located in adjacent positioning slots, and the plurality of second connecting posts are located in adjacent positioning slots.

[0007] In one alternative embodiment, a first locking member is screwed to the end of the first connecting post opposite to the receiving cavity, the first locking member being located within the positioning groove; and a second locking member is screwed to the end of the second connecting post opposite to the receiving cavity, the second locking member being located within the positioning groove.

[0008] In an alternative embodiment, a first sealing ring is further fitted onto the first connecting post, the first sealing ring being located at the connection between the first connecting post and the housing, and the first sealing ring being located within one of the positioning grooves; a second sealing ring is further fitted onto the second connecting post, the second sealing ring being located at the connection between the second connecting post and the housing, and the second sealing ring being located within another of the positioning grooves.

[0009] In one alternative embodiment, the bottom of the positioning groove is provided with a connecting hole, the connecting hole communicating with the receiving cavity, the first sealing ring is disposed in the connecting hole of one of the positioning grooves, the first sealing ring extends radially with a first sealing part and a second sealing part, the second sealing part and the first sealing part are spaced apart to form a mounting groove, the mounting groove is engaged with the housing, the first sealing part abuts against the bottom of the positioning groove, and the second sealing part abuts against the inner wall of the housing.

[0010] In one alternative embodiment, the positioning groove is further provided with a first arc-shaped inner wall and a second arc-shaped inner wall, the first arc-shaped inner wall and the second arc-shaped inner wall are arranged opposite to each other along the first direction, the first arc-shaped inner wall and the inner wall of the second arc are spaced apart along the first direction to form a clearance space, the first connecting post or the second connecting post is located between the first arc-shaped inner wall and the second arc-shaped inner wall, the first connecting post or the second connecting post is located within the clearance space, and both the first arc-shaped inner wall and the second arc-shaped inner wall are bent in a direction away from the first connecting post or the second connecting post.

[0011] In one alternative embodiment, the control circuit board is provided with multiple bayonets, one end of the first connecting post near the control circuit board is engaged with one of the bayonets, and one end of the second connecting post near the control circuit board is engaged with another of the bayonets.

[0012] In one alternative embodiment, the housing includes a top cover that covers the plurality of positioning blocks and covers the plurality of positioning slots.

[0013] In one alternative embodiment, the housing includes a housing body and a bottom cover, the housing body and the bottom cover being detachably connected, the receiving cavity being located on the housing body, the positioning block being located on the housing body, and a plurality of heat sinks being provided on the side of the bottom cover opposite to the housing body, the plurality of heat sinks being spaced apart along the second direction, and adjacent heat sinks being spaced apart to form heat dissipation grooves, the heat dissipation grooves being through along the first direction.

[0014] According to another aspect of this application, an electric vehicle is provided, including the controller described above.

[0015] The beneficial effects of this application embodiment are as follows: Unlike the prior art, this application embodiment includes a housing and a control circuit board. The housing has a receiving cavity, and multiple positioning blocks extend vertically from the housing. These positioning blocks are spaced apart along a first direction, with adjacent positioning blocks forming positioning grooves. These positioning grooves communicate with the receiving cavity and extend along a second direction, which is perpendicular to both the first and vertical directions. The control circuit board is disposed within the receiving cavity and includes multiple first connecting posts and multiple second connecting posts. A portion of one first connecting post penetrates the housing and is located within one of the positioning grooves, as do portions of one second connecting post. This arrangement allows the power connection line between the power supply and the first connecting post of the electric vehicle, and the motor connection line between the motor and the second connecting post of the electric vehicle, to be located within the positioning grooves. The positioning grooves can accommodate the power connection lines. The positioning groove serves a positioning function, reducing the shaking of the power connection cable and the motor connection cable. Furthermore, since the positioning groove is continuous along the second direction, meaning it is in a conductive state along the second direction, users do not need to consider whether the power connection post on the controller faces the power source on the electric vehicle, or whether the motor connection post on the controller faces the motor on the electric vehicle, during controller installation. The power source on the electric vehicle can connect to the first connection post on the controller from one side or the opposite side along the second direction, thus completing the connection between the controller and the power source. Similarly, the motor on the electric vehicle can connect to the second connection post on the controller from one side or the opposite side along the second direction, thus completing the connection between the controller and the motor. This reduces the need to adjust the controller's orientation, thereby improving the controller's installation efficiency and making it more convenient. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is a schematic diagram of the overall structure of the controller according to an embodiment of this application;

[0018] Figure 2 This is a partial structural schematic diagram of the controller according to an embodiment of this application;

[0019] Figure 3 This is an exploded view of the overall structure of the controller according to an embodiment of this application;

[0020] Figure 4 This is a schematic diagram of the first sealing ring structure of the controller in an embodiment of this application;

[0021] Figure 5 This is another exploded view of the overall structure of the controller according to an embodiment of this application;

[0022] Figure 6 yes Figure 5 Enlarged schematic diagram of the structure at point A in the middle. Detailed Implementation

[0023] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0025] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0026] Please see Figures 1-3 The controller 1000 includes a housing 10, a base plate 20, and a control circuit board 30. Both the base plate 20 and the control circuit board 30 are disposed within the housing 10, and the base plate 20 and the control circuit board 30 are electrically connected. The housing 10, the base plate 20, and the control circuit board 30 will be described in detail below. To better illustrate the structure of the controller 1000, it will be described in conjunction with a first direction X, a second direction Y, and a third direction Z (vertical direction), wherein the first direction X, the second direction Y, and the third direction Z are perpendicular to each other.

[0027] Regarding the aforementioned housing 10, substrate 20, and control circuit board 30, as follows: Figure 2 and Figure 3As shown, the housing 10 has a receiving cavity 10a, and the substrate 20 and the control circuit board 30 are both disposed within the receiving cavity 10a. The substrate 20 is connected to the control circuit board 30. The substrate 20 serves as a basic structural component in the controller, supporting and fixing other components. In some embodiments, the substrate 20 is integrally welded to the control circuit board 30, resulting in low thermal resistance and low energy consumption between the two.

[0028] In some embodiments, the housing 10 extends along the vertical direction Z with a plurality of positioning blocks 101, the plurality of positioning blocks 101 are spaced apart along the first direction X, and adjacent positioning blocks 101 form positioning grooves 101a at intervals. The positioning grooves 101a are connected to the receiving cavity 10a and are through along the second direction Y. The positioning grooves 101a can position the power connection wires and motor connection wires located on the outer surface of the housing 10, thereby reducing the shaking of the connection wires.

[0029] In some embodiments, the control circuit board 30 is provided with a plurality of first connecting posts 301 and a plurality of second connecting posts 302. A portion of a first connecting post 301 penetrates the housing 10 and is located in one of the positioning grooves 101a, and a portion of a second connecting post 302 penetrates the housing 10 and is located in another positioning groove 101a. The power supply of the electric vehicle can be connected to the first connecting post 301 to achieve the connection between the controller and the electric vehicle power supply. The motor of the electric vehicle can be connected to the second connecting post 302 to achieve the connection between the controller and the electric vehicle motor. The power connection line between the power supply of the electric vehicle and the first connecting post 301 can be located in the positioning groove 101a, and the motor connection line between the motor of the electric vehicle and the second connecting post 302 can be located in the positioning groove 101a. 1a can position the power connection cable and motor connection cable, reducing their swaying. In addition, since the positioning groove 101a is through along the second direction Y, that is, the positioning groove 101a is in a conductive state along the second direction Y, the user does not need to consider whether the power connection post on the controller is facing the power source on the electric vehicle, or whether the motor connection post on the controller is facing the motor on the electric vehicle, during the installation of the controller. The power source on the electric vehicle can be connected to the first connection post 301 on the controller from one side or the opposite side along the second direction Y, and the motor on the electric vehicle can be connected to the second connection post 302 on the controller from one side or the opposite side along the second direction Y. Thus, the adjustment of the controller direction can be reduced, thereby improving the installation efficiency of the controller and making it more convenient.

[0030] In some embodiments, the plurality of first connecting posts 301 are power connecting posts, and the plurality of first connecting posts 301 include a positive connecting post 301a and a negative connecting post 301b, which are used to connect to the power supply of the electric vehicle.

[0031] In some embodiments, the plurality of second connecting posts 302 are motor connecting posts, and the plurality of second connecting posts 302 include a U-phase connecting post 302a, a V-phase connecting post 302b and a W-phase connecting post 302c, which are used to connect an electric vehicle motor.

[0032] In some embodiments, a plurality of first connecting posts 301 are located in adjacent positioning slots 101a, and a plurality of second connecting posts 302 are located in adjacent positioning slots 101a. This arrangement can reduce the tangling between different connecting lines.

[0033] In some embodiments, a first locking member 3011 is screwed to one end of the first connecting post 301 away from the receiving cavity 10a. The first locking member 3011 is located in the positioning groove 101a. A second locking member 3021 is screwed to one end of the second connecting post 302 away from the receiving cavity 10a. The second locking member 3021 is located in the positioning groove 101a. After the power connection cable on the electric vehicle is connected to the first connecting post 301, the power connection cable can be locked to the first connecting post 301 by rotating the first locking member 3011, reducing the possibility of the power connection cable falling off the first connecting post 301. After the motor connection cable on the electric vehicle is connected to the second connecting post 302, the motor connection cable can be locked to the second connecting post 302 by rotating the second locking member 3021, reducing the possibility of the motor connection cable falling off the second connecting post 302.

[0034] In some embodiments, please refer to the following: Figure 4 A first sealing ring 3012 is also fitted on the first connecting post 301. The first sealing ring 3012 is located at the connection between the first connecting post 301 and the housing 10 and is located in one of the positioning grooves 101a. A second sealing ring 3022 is also fitted on the second connecting post 302. The second sealing ring 3022 is located at the connection between the second connecting post 302 and the housing 10 and is located in another positioning groove 101a. When external dust or rainwater enters the positioning groove 101a, the first sealing ring 3012 can reduce the entry of external dust or rainwater into the receiving cavity 10a along the first connecting post 301, and the second sealing ring 3022 can reduce the entry of external dust or rainwater into the receiving cavity 10a along the second connecting post 302.

[0035] In some embodiments, please refer to the following: Figure 5The bottom of the positioning groove 101a is provided with a connecting hole 101aa, which connects to the receiving cavity 10a. The first sealing ring 3012 is provided in the connecting hole 101aa of one of the positioning grooves 101a. The first sealing ring 3012 extends radially with a first sealing part 3012a and a second sealing part 3012b. The second sealing part 3012b and the first sealing part 3012a are spaced apart to form a mounting groove 30121. The mounting groove 30121 is engaged with the housing 10. The first sealing part 3012a abuts against the bottom of the positioning groove 101a, and the second sealing part 3012b abuts against the inner wall of the housing 10. The first sealing ring 3012 forms a double seal by providing the first sealing part 3012a and the second sealing part 3012b, which further ensures the sealing effect at the connection between the first connecting post 301 and the housing 10. It is understandable that the structure of the second sealing ring 3022 can be referred to the first sealing ring 3012, and will not be repeated here.

[0036] In some embodiments, the positioning groove 101a is further provided with a first arc-shaped inner wall 101ab and a second arc-shaped inner wall 101ac. The first arc-shaped inner wall 101ab and the second arc-shaped inner wall 101ac are arranged opposite to each other along the first direction X. The first arc-shaped inner wall 101ab and the inner wall of the second arc are spaced apart along the first direction X to form a clearance space (not shown). The first connecting post 301 or the second connecting post 302 is located between the first arc-shaped inner wall 101ab and the second arc-shaped inner wall 101ac. The first connecting post 301 or the second connecting post 302 is located in the clearance space. Within the space, both the first arc-shaped inner wall 101ab and the second arc-shaped inner wall 101ac are bent in a direction away from the first connecting post 301 or the second connecting post 302. The aforementioned clearance space can facilitate the user to connect the power connection cable to the first connecting post 301, for example, to facilitate the tool to enter the positioning groove 101a to turn the first locking member 3011, etc. The aforementioned clearance space can also facilitate the user to connect the motor connection cable to the second connecting post 302, for example, to facilitate the tool to enter the positioning groove 101a to turn the second locking member 3021, etc.

[0037] In some embodiments, please refer to Figure 3 The control circuit board 30 is provided with multiple bayonet slots 303. A first connecting post 301, with one end near the control circuit board 300, is engaged with one of the bayonet slots 303. A second connecting post 302, with one end near the control circuit board 300, is engaged with another bayonet slot 303. After the first connecting post 301 and the second connecting post 302 are engaged with the control circuit board 30 using the bayonet slots 303, they are then fixed to the control circuit board 30 by soldering. It is understood that the specific placement of the multiple bayonet slots 303 on the control circuit board 30 is not specifically limited in this application; users can set them according to their actual needs.

[0038] In some embodiments, the housing 10 includes a housing body 102 and a bottom cover 103, the housing body 102 and the bottom cover 103 being detachably connected, a receiving cavity 10a located on the housing body 102, and a positioning block 101 located on the housing body 102. It is understood that the detachable connection between the housing body 102 and the bottom cover 103 includes, but is not limited to, screw connection, snap-fit, riveting, threaded connection, etc.

[0039] In some embodiments, the housing 10 includes a top cover 104, which covers a plurality of positioning blocks 101 and covers a plurality of positioning grooves 101a. The top cover 104 can shield the positioning grooves 101a and reduce the entry of external dust or rainwater into the positioning grooves 101a.

[0040] In some embodiments, a plurality of heat sinks 1031 are provided on the side of the bottom cover 103 away from the shell body 102. The plurality of heat sinks 1031 are spaced apart along the second direction Y, and adjacent heat sinks 1031 form heat dissipation grooves 103a. The heat dissipation grooves 103a are connected along the first direction X, and external airflow can flow along the heat dissipation grooves 103a, thereby removing the heat transferred from the controller to the bottom cover 103, and thus achieving heat dissipation for the controller. In some embodiments, in order to improve the heat dissipation effect of the heat dissipation grooves 103a, the first direction X is parallel to the riding direction of the electric vehicle. Thus, external airflow can directly flow into and out of the heat dissipation grooves 103a along the first direction X, which can increase the contact area between the external airflow and the heat sinks 1031, thereby improving the heat dissipation efficiency of the heat dissipation grooves 103a.

[0041] In some embodiments, please refer to Figure 5 and Figure 6 The housing 10 also includes a sealing ring 105, which is disposed on the side of the bottom cover 103 near the housing body 102. The inner wall of the housing body 102 abuts against the outer periphery of the sealing ring 105. The sealing ring 105 can reduce the entry of external dust or rainwater into the receiving cavity 10a from the connection between the housing body 102 and the bottom cover 103. In some embodiments, the sealing ring 105 is provided with an annular groove 105a, which can improve the waterproof and dustproof performance of the sealing ring 105.

[0042] In the embodiment of this application, there is a housing 10 and a control circuit board 30. The housing 10 includes a receiving cavity 10a. Multiple positioning blocks 101 extend from the housing 10 along the vertical direction Z. These positioning blocks 101 are spaced apart along a first direction X. Adjacent positioning blocks 101 form positioning grooves 101a, which communicate with the receiving cavity 10a and extend along a second direction Y. The second direction Y is perpendicular to both the first direction X and the vertical direction Z. A control circuit board 30 is disposed within the receiving cavity 10a. The control circuit board 30 includes multiple first connecting posts 301 and multiple second connecting posts 302. A portion of a first connecting post 301 penetrates the housing 10 and is located within one of the positioning grooves 101a. A portion of a second connecting post 302 also penetrates the housing 10 and is located within one of the positioning grooves 101a. This arrangement allows the power connection between the electric vehicle's power supply and the first connecting post 301 to be located within the positioning groove 101a, as well as the connection between the electric vehicle's motor and the second connecting post 302. The motor connection wires between the posts 302 can be located in the positioning groove 101a. The positioning groove 101a can position the power connection wires and motor connection wires, reducing their shaking. In addition, since the positioning groove 101a is through along the second direction Y, that is, the positioning groove 101a is in a conductive state along the second direction Y, the user does not need to consider whether the power connection post on the controller is facing the power source on the electric vehicle, or whether the motor connection post on the controller is facing the motor on the electric vehicle, during the installation of the controller. The power source on the electric vehicle can be connected to the first connection post 301 on the controller from one side or the opposite side along the second direction Y, thereby completing the connection between the controller and the power source. Similarly, the motor on the electric vehicle can be connected to the second connection post 302 on the controller from one side or the opposite side along the second direction Y, thereby completing the connection between the controller and the motor. This reduces the need to adjust the controller orientation, thereby improving the installation efficiency of the controller and making it more convenient.

[0043] This application also provides an embodiment of an electric vehicle, which includes the controller 1000 as described above. The functions and structure of the controller 1000 can be found in the above embodiments, and will not be repeated here.

[0044] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A controller characterized by comprising: The controller comprises: a shell provided with a receiving cavity, the shell extending in a vertical direction with a plurality of positioning blocks, the plurality of positioning blocks being arranged in a first direction, adjacent positioning blocks being spaced apart to form positioning slots, the positioning slots being communicated with the receiving cavity, and the positioning slots being penetrated in a second direction, the second direction being perpendicular to the first direction and the vertical direction; a control circuit board arranged in the receiving cavity, the control circuit board being provided with a plurality of first connecting columns and a plurality of second connecting columns, a part of the first connecting column penetrating the shell to be located in one of the positioning slots, and a part of the second connecting column penetrating the shell to be located in another one of the positioning slots.

2. The controller according to claim 1, wherein: the plurality of first connecting columns are located in adjacent positioning slots, and the plurality of second connecting columns are located in adjacent positioning slots.

3. The controller according to claim 1, wherein: an end of the first connecting column away from the receiving cavity is screwed with a first locking member, the first locking member being located in the positioning slot, and an end of the second connecting column away from the receiving cavity is screwed with a second locking member, the second locking member being located in the positioning slot.

4. The controller according to claim 1, wherein: a first sealing ring is further sleeved on the first connecting column, the first sealing ring being located at a connection between the first connecting column and the shell, the first sealing ring being located in one of the positioning slots, and a second sealing ring is further sleeved on the second connecting column, the second sealing ring being located at a connection between the second connecting column and the shell, the second sealing ring being located in another one of the positioning slots.

5. The controller according to claim 4, wherein: a connecting hole is arranged at a bottom of the positioning slot, the connecting hole being communicated with the receiving cavity, the first sealing ring being arranged in the connecting hole of one of the positioning slots, the first sealing ring extending radially with a first sealing portion and a second sealing portion, the second sealing portion being spaced apart from the first sealing portion to form a mounting clamping groove, the mounting clamping groove being clamped to the shell, the first sealing portion abutting against the bottom of the positioning slot, and the second sealing portion abutting against an inner wall of the shell.

6. The controller according to claim 1, wherein: the positioning slot is further provided with a first arc-shaped inner wall and a second arc-shaped inner wall, the first arc-shaped inner wall and the second arc-shaped inner wall being oppositely arranged in the first direction, the first arc-shaped inner wall and the second arc-shaped inner wall being spaced apart in the first direction to form an avoiding space, the first connecting column or the second connecting column being located between the first arc-shaped inner wall and the second arc-shaped inner wall, the first connecting column or the second connecting column being located in the avoiding space, and the first arc-shaped inner wall and the second arc-shaped inner wall both being curved away from the first connecting column or the second connecting column.

7. The controller according to claim 1, wherein: a plurality of clamping grooves are arranged on the control circuit board, an end of the first connecting column close to the control circuit board being clamped to one of the clamping grooves, and an end of the second connecting column close to the control circuit board being clamped to another one of the clamping grooves.

8. The controller of claim 1, wherein the shell comprises a shell body and a bottom cover, the shell body is detachably connected with the bottom cover, the accommodating cavity is located on the shell body, the positioning block is located on the shell body, a side of the bottom cover away from the shell body is provided with a plurality of heat dissipation fins, the plurality of heat dissipation fins are spaced along the second direction, and a heat dissipation groove is formed between adjacent heat dissipation fins, the heat dissipation groove penetrates along the first direction.

9. The controller of claim 8, wherein the shell further comprises a sealing ring, the sealing ring is arranged on a side of the bottom cover close to the shell body, and an inner wall of the shell body abuts an outer periphery of the sealing ring.

10. An electric vehicle, characterized by comprising: The controller of any one of claims 1-9.