Motor controller and vehicle

Abstract

The utility model provides a motor controller and a vehicle, and relates to the technical field of vehicles, the motor controller comprises a housing, a cover plate, a connector assembly and a sealing structure, the housing is provided with a jack, and the connector assembly passes through the jack; a notch is formed in the hole wall of the side, facing the cover plate, of the inserting hole, a groove is formed in the position, corresponding to the notch, of the connector, the sealing structure comprises sealant and a sealing piece, the sealing piece is arranged between the cover plate and the connector and located in the groove, and the sealant is connected between the shell and the cover plate and fills the groove; or, the hole wall of the jack is of a closed annular structure, the sealing structure comprises sealant, and the sealant is connected between the shell and the cover plate. Therefore, the use amount of the sealant between the shell and the cover plate of the motor controller can be reduced, and the curing time of the sealant can be shortened, so that the effective sealing performance of the motor controller can be ensured, the production takt can be accelerated, and the production efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, and in particular to a motor controller and a vehicle. Background Art

[0002] As the power source of new energy electric vehicles, the electric drive system is an indispensable core component, and its comprehensive performance directly affects the competitiveness of electric vehicles. The motor controller is the main component of the electric drive system, and its cost, weight, reliability, NVH (Noise, Vibration, Harshness) performance, etc. have a great impact on the competitiveness of the electric drive system.

[0003] At present, the motor controller mainly includes a housing, a connector, a control element and a power element, wherein the housing of the motor controller includes a shell and a cover plate, the control element and the power element are installed inside the shell, the connector is fixed at the opening surrounded by the shell and the cover plate, and the shell and the cover plate usually need to be sealed by gluing using the FIPG (Formed in Place Gasket) process. However, in the prior art, due to the structural limitations of the assembly points of the cover plate, the connector and the shell, the amount of glue applied at the connector in the assembly area between the shell and the cover plate is large, which increases the production cost. Moreover, the waiting time from the completion of gluing to the airtightness test is long, which easily affects the production rhythm and sealing reliability, resulting in problems of sealing failure and low production efficiency. Utility Model Content

[0004] The problem solved by the utility model is: how to improve production efficiency while ensuring the sealing performance of a motor controller.

[0005] In order to solve the above problems, the utility model provides a motor controller and a vehicle.

[0006] In a first aspect, the utility model provides a motor controller, comprising a housing, a cover plate, a connector and a sealing structure, wherein the housing is provided with a connector hole, and the connector is inserted into the connector hole;

[0007] A notch is provided on the hole wall of the connector hole facing the cover plate, and a groove is provided on the connector at a position corresponding to the notch, the sealing structure comprises a sealant and a sealing member, the sealant is provided between the cover plate and the connector and located at the groove, the sealant is connected between the housing and the cover plate and fills the groove; or,

[0008] The hole wall of the connector is a closed annular structure, and the sealing structure includes a sealant, which is connected between the shell and the cover plate.

[0009] Optionally, when the sealing structure includes the sealing member, the sealing member is connected to at least one of the cover plate and the housing.

[0010] Optionally, when the sealing structure includes the sealing component, the sealing component and the cover plate are an integrated structure.

[0011] Optionally, the sealing member is formed by the cover plate protruding toward the side where the groove is located.

[0012] Optionally, the sealing member is a strip-shaped structure and is arranged parallel to the groove.

[0013] Optionally, when the sealing structure includes the sealing element, a limiting groove is further provided on the hole wall of the connector, the limiting groove is arranged around the center line of the connector, and a limiting protrusion is provided on the connector, and the limiting protrusion is inserted into the limiting groove.

[0014] Optionally, a guiding slope is further provided on the hole wall of the connector, the guiding slope is located at the notch and is used to guide the connector to be inserted into the connector through the notch.

[0015] Optionally, when the hole wall of the connector hole is a closed annular structure, the sealing structure also includes a sealing ring, and the connector abuts against the inner side or outer side of the shell through the sealing ring, or the sealing ring is sleeved on the connector and abuts against the hole wall of the connector hole.

[0016] Optionally, the connector is a multi-PIN connector.

[0017] In a second aspect, the utility model provides a vehicle, comprising the motor controller as described above.

[0018] The beneficial effect of the motor controller of the utility model is that the connector can be installed and fixed on the housing by opening a socket on the housing and inserting the connector into the socket. When a large groove is formed at the connector in the assembly area between the housing and the cover plate because the hole wall of the socket facing the cover plate is provided with a notch and the connector is provided with a groove, a seal can be provided at the groove of the connector to fill the groove with the seal instead of a part of the sealant, which can not only reduce the amount of glue applied, reduce production costs, shorten the curing time of the sealant, and thus shorten the time from glue dispensing to airtight detection, and improve the production cycle, but also increase the contact area of ​​the sealant to ensure the sealing of the motor controller. In addition, the setting of the sealant makes the matching area of ​​the cover plate and the connector form a maze structure. When the airtight detection is performed when the sealant is not completely cured, the offset of the sealant can be reduced to prevent the sealant from being blown out of the matching area of ​​the cover plate and the connector, that is, the conditions for performing airtight detection before the sealant is completely cured are reduced, thereby shortening the time from glue dispensing to airtight detection and improving the production cycle. Moreover, the amount of sealant can be reduced by changing the structure of the connector and the assembly method of the connector, that is, by setting the hole wall of the connector to a closed annular structure, so that there is no large groove at the connector in the assembly area between the cover plate and the shell. In this way, after the amount of sealant is reduced, not only can the production cost be reduced, but also the curing time of the sealant can be shortened, so that the motor controller can pass the airtightness test in a shorter time to ensure the effectiveness of the seal, and the production rhythm of the motor controller can be accelerated to improve the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the exploded structure of the motor controller in the embodiment of the utility model when the sealing structure is arranged between the housing and the cover plate;

[0020] Figure 2 It is a schematic diagram of the exploded structure of the motor controller in the embodiment of the utility model when the sealing structure is arranged between the housing and the connector;

[0021] Figure 3 for Figure 1 A schematic cross-sectional view of the motor controller at the sealing structure;

[0022] Figure 4 for Figure 3 A partial enlarged view of the first situation at center A;

[0023] Figure 5 for Figure 3 A partial enlarged view of the second situation at center A;

[0024] Figure 6 for Figure 3 A partial enlarged view of point B in the middle;

[0025] Figure 7 This is a schematic structural diagram of a first case of a housing in an embodiment of the utility model;

[0026] Figure 8 It is a structural schematic diagram of the second situation of the shell in the embodiment of the utility model.

[0027] Description of reference numerals:

[0028] 1. Shell; 11. Connecting hole; 12. Notch; 13. Limiting groove; 14. Guide slope; 2. Cover plate; 3. Connector; 31. Groove; 32. Limiting protrusion; 33. Limiting plate; 4. Sealing structure; 41. Sealing element; 42. Sealing ring. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model are described in detail below in conjunction with the accompanying drawings. Although some embodiments of the utility model are shown in the accompanying drawings, it should be understood that the utility model can be implemented in various forms and should not be interpreted as being limited to the embodiments described here. On the contrary, these embodiments are provided to more thoroughly and completely understand the utility model. It should be understood that the drawings and embodiments of the utility model are only for exemplary purposes and are not used to limit the scope of protection of the utility model.

[0030] The Z axis in the accompanying drawings represents the vertical direction, that is, the up and down position, and the positive direction of the Z axis represents the top, and the reverse direction of the Z axis represents the bottom; the X axis in the accompanying drawings represents the horizontal direction, and is designated as the front and back position, and the positive direction of the X axis represents the front side, and the reverse direction of the X axis represents the back side; the Y axis in the accompanying drawings represents the left and right positions, and the positive direction of the Y axis represents the left side, and the reverse direction of the Y axis represents the right side. It should also be noted that the aforementioned Z axis, Y axis, and X axis are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] The term "including" and its variations used in this article are open inclusions, that is, "including but not limited to"; the term "based on" means "based at least in part on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc. mentioned in the present utility model are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0032] It should be noted that the modifications of "one" and "plurality" mentioned in the present invention are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0033] In the related art, the connector of the motor controller is fixed at the opening surrounded by the housing and the cover of the motor controller, and the part of the connector that matches the cover is recessed, so that there is a large groove at the connector in the assembly area between the cover and the housing, resulting in a limited contact area between the sealant and the cover when the sealant is used to seal the housing and the cover. If the sealing of this area is to be guaranteed, a large amount of sealant needs to be used for filling. When the amount of glue applied increases, the curing time of the sealant will become longer, and the central area of ​​the sealant may not be cured for a long time. If the airtightness test is performed in a short time, the sealant will be blown out due to the small contact area and the uncured central area, resulting in sealing failure. Therefore, in order to meet the sealing requirements, a large amount of sealant is usually required, and a lot of time is required to wait for the sealant to cure, which in turn affects the airtightness test of the motor controller and the rhythm of the product off the line, resulting in high production costs and low production efficiency.

[0034] In view of the problems existing in the above-mentioned related technologies, this embodiment provides a motor controller and a vehicle.

[0035] Combination Figure 1 , Figure 2 and Figure 3 As shown, a motor controller provided by an embodiment of the utility model includes a shell 1, a cover plate 2, a connector 3 and a sealing structure 4, the shell 1 is provided with a connector hole 11, and the connector 3 is inserted into the connector hole 11; a notch 12 is provided on the hole wall of the connector hole 11 facing the cover plate 2, and a groove 31 is provided at a position corresponding to the notch 12 on the connector 3, the sealing structure 4 includes a sealant and a sealing member 41, the sealant 41 is provided between the cover plate 2 and the connector 3, and is located at the groove 31, the sealant is connected between the shell 1 and the cover plate 2, and fills the groove 31; or, the hole wall of the connector hole 11 is a closed annular structure, the sealing structure 4 includes a sealant, and the sealant is connected between the shell 1 and the cover plate 2.

[0036] It should be noted that the housing 1 of the motor controller is usually surrounded by a bottom plate and side plates to form a hollow structure, and the upper end of the hollow structure is usually open. Figure 1 , Figure 2 , Figure 7 and Figure 8 The housing 1 shown in the figure is actually a side plate of the housing 1 provided with a socket 11 .

[0037] It should also be noted that in order to ensure the sealing of the motor controller, sealing is usually required between the shell 1 and the cover 2, as well as between the connector 3 and the shell 1. Among them, the shell 1 and the cover 2 are usually sealed with sealant, and the sealing method between the connector 3 and the shell 1 varies according to the structure of the connector hole 11. For example, when a notch 12 is provided on the hole wall of the connector hole 11 facing the cover 2, that is, the connector hole 11 has a notch structure, the connector 3 is fixed by the shell 1 and the cover 2. At this time, the connector 3 and the shell 1 are usually sealed with sealant and a sealing member 41. When the hole wall of the connector hole 11 is a closed ring structure, the connector 3 is only fixed by the shell 1. At this time, the connector 3 and the shell 1 are usually sealed with, for example, a sealing ring 42.

[0038] Specifically, the structure and setting position of the sealing structure 4 are different according to the different structures of the connector 11. When the connector 11 is a notch structure, the connector 11 is usually set at the edge of one end of the shell 1 connected to the cover plate 2, that is, the connector 11 is not a complete through-hole structure, that is, the hole wall of the connector 11 is not a closed annular structure, but a semi-enclosed structure with a notch 12, so that the connector 3 is fixed by the cover plate 2 and the shell 1 when it is inserted into the connector 11; wherein, the notch 12 is located on the side of the connector 11 facing the cover plate 2, and connects the gap between the cover plate 2 and the connector 3 with the groove 31 on the connector 3, and the upper end surface of the connector 3 (that is, the connector 3 is located at the bottom of the connector 3) is connected to the cover plate 2. Figure 1 The end surface at the positive end of the Z axis is usually aligned with the upper end surface of the housing 1 (i.e., the housing 1 is located at Figure 1 The end surface of the cover plate 2 (at the positive end of the Z axis) is flush, and the groove 31 constitutes a groove at the assembly area between the cover plate 2 and the housing 1. At this time, the sealing structure 4 usually includes a sealant and a sealant 41. The sealant 41 is arranged between the cover plate 2 and the connector 3 and is located at the groove 31 of the connector 3. The sealant is connected between the housing 1 and the cover plate 2 and fills the groove 31. The extension direction of the sealant 41 is the same as the extension direction of the groove 31, so that the sealant 41 can replace a part of the sealant to fill the groove 31 on the connector 3, and at the same time, the contact area of ​​the sealant can be increased. In one example, the sealant 41 can be placed in the groove 31 of the connector 3 as a separate part; in another example, the sealant 41 can also be integrally formed with the cover plate 2. When the hole wall of the connector 11 is a closed annular structure, there is no large groove at the connector 3 in the assembly area between the cover plate 2 and the shell 1. At this time, the sealing structure 4 is usually a sealant, and a normal amount of sealant can be used to seal the shell 1 and the cover plate 2 without increasing the amount of glue.

[0039] The motor controller in this embodiment can be installed and fixed on the housing 1 by opening a connector hole 11 on the housing 1 and inserting the connector 3 into the connector hole 11. When a large groove is formed at the connector 3 in the assembly area between the housing 1 and the cover plate 2 because the hole wall of the connector hole 11 facing the cover plate 2 is provided with a notch 12 and the connector 3 is provided with a groove 31, a sealing member 41 can be provided at the groove 31 of the connector 3 to fill the groove with the sealing member 41 instead of a part of the sealant, which can not only reduce the amount of glue applied, reduce production costs, shorten the curing time of the sealant, and further shorten the time from glue dispensing to airtightness detection, improve production tact, but also increase the contact area of ​​the sealant to ensure the sealing of the motor controller. In addition, the setting of the seal 41 makes the matching area of ​​the cover plate 2 and the connector 3 form a maze structure. When the airtightness test is performed when the sealant is not completely cured, the offset of the sealant can be reduced to prevent the sealant from being blown out of the matching area of ​​the cover plate 2 and the connector 3, that is, the conditions for performing the airtightness test before the sealant is completely cured are reduced, thereby shortening the time from dispensing to the airtightness test and improving the production cycle. Moreover, it is also possible to change the structure of the connector 11 and the assembly method of the connector 3, that is, to set the hole wall of the connector 11 to a closed annular structure, so that there is no large groove in the assembly area between the cover plate 2 and the housing 1 at the connector 3, thereby reducing the amount of sealant. In this way, after the amount of sealant is reduced, not only can the production cost be reduced, but also the curing time of the sealant can be shortened, so that the motor controller can pass the airtightness test in a shorter time to ensure the effectiveness of the seal, and the production cycle of the motor controller can be accelerated to improve production efficiency.

[0040] Optionally, the connector 3 is a multi-PIN connector. In this optional embodiment, when the motor controller is an all-in-one motor controller, the connector 3 is usually preferably a multi-PIN connector to reduce the space occupied by the connector 3 and facilitate centralized arrangement. In other embodiments, when the motor controller is not an all-in-one motor controller, the connector 3 may also be a single-PIN connector. In practical applications, the selection and setting can be made according to the specific type of the motor controller.

[0041] Optionally, when the sealing structure 4 includes a sealing member 41 , the sealing member 41 is connected to at least one of the cover plate 2 and the connector 3 .

[0042] In this optional embodiment, the seal 41 is a separate part. For example, in practical applications, a sealing strip is usually used as the seal 41 and is embedded in the groove 31 of the connector 3. The seal 41 can be connected to the side of the cover plate 2 facing the connector 3, or to the part of the connector 3 where the groove 31 is provided, or to both the cover plate 2 and the connector 3. Moreover, the connection between the cover plate 2 and the seal 41, and between the connector 3 and the seal 41 can be bonding, or can be formed by abutting contact, which is not specifically limited here, and can be selected and designed according to needs in practical applications. In this way, the seal 41 can be used to fill the groove 31 without changing the original structure of the cover plate 2, so as to achieve the purpose of reducing the amount of glue applied between the cover plate 2 and the housing 1.

[0043] Optionally, combined Figure 1 As shown, the sealing member 41 is a strip-shaped structure and is arranged parallel to the groove 31 .

[0044] In this optional embodiment, the sealing member 41 is a strip structure arranged parallel to the groove 31, and the strip structure generally extends from one end to the other end of the groove 31. In this way, the filling range of the sealing member 41 in the groove 31 and the contact area of ​​the sealant can be increased as much as possible, thereby reducing the amount of sealant used as much as possible, reducing production costs and improving production efficiency.

[0045] Optionally, combined Figure 3 , Figure 4 and Figure 5 As shown, when the sealing structure 4 includes a sealing member 41 , the sealing member 41 and the cover plate 2 are an integrated structure.

[0046] In this optional embodiment, the sealing member 41 may be a protruding structure additionally provided on the side of the cover plate 2 facing the connector 3, such as Figure 5 As shown, the cover plate 2 may also be formed by stamping, that is, the portion of the cover plate 2 corresponding to the groove 31 is convex toward the side where the groove 31 is located, such as Figure 4 As shown, the design can be selected according to the actual application. In this way, the sealing member 41 and the cover plate 2 can be formed into one piece, the number of parts and the assembly process can be reduced, and the production efficiency can be further improved.

[0047] Optionally, combined Figure 3 and Figure 4 As shown, the sealing member 41 is formed by the cover plate 2 protruding toward the side where the groove 31 is located.

[0048] In this optional embodiment, the sealing member 41 is formed by a portion of the cover plate 2 corresponding to the groove 31 protruding toward the side where the groove 31 is located. At this time, the side of the cover plate 2 away from the connector 3 is recessed at the groove 31, such as Figure 4In this way, not only can the overall consumables of the cover plate 2 and the seal 41 be reduced, and the production cost can be reduced, but also the seal 41 can be processed conveniently by stamping, thereby improving the production efficiency of the seal 41 and even the motor controller.

[0049] Optionally, combined Figure 1 , Figure 6 and Figure 7 As shown, when the sealing structure 4 includes a sealing member 41 , a limiting groove 13 is also provided on the hole wall of the connector hole 11 , the limiting groove 13 is arranged around the center line of the connector hole 11 , and a limiting protrusion 32 is provided on the connector 3 , and the limiting protrusion 32 is inserted into the limiting groove 13 .

[0050] In this optional embodiment, the limit groove 13 is arranged on the hole wall of the connector hole 11 around the center line of the connector hole 11, so that the overall shape of the limit groove 13 and the limit protrusion 32 matches the shape of the hole wall of the connector hole 11. For example, when the connector hole 11 is a trapezoidal hole with a notch 12, the limit groove 13 is usually also trapezoidal. When the connector hole 11 is a square hole with a notch 12, the limit groove 13 and the limit protrusion 32 are usually also square. When the connector hole 11 is a semicircular hole with a notch 12, the limit groove 13 and the limit protrusion 32 are usually also semicircular. In this way, by providing a limiting groove 13 on the hole wall of the connector 11 and providing a limiting protrusion 32 on the connector 3, the connector 3 can be limited in the center line direction of the connector 11 by plugging and fitting the limiting protrusion 32 and the limiting groove 13, so as to prevent the connector 3 from moving at the connector 11 in the center line direction of the connector 1, thereby ensuring the firmness of the connector 3 installed at the connector 11.

[0051] Optionally, combined Figure 1 and Figure 7 As shown, a guiding slope 14 is also provided on the hole wall of the connector hole 11 . The guiding slope 14 is located at the notch 12 and is used to guide the connector 3 to be inserted into the connector hole 11 from the notch 12 .

[0052] In this optional embodiment, the guide slope 14 is usually arranged at the position of the notch 12. Figure 1 The two guide slopes 14 are arranged at two ends of the middle X-axis direction, and the two guide slopes 14 are usually arranged opposite to each other and inclined downward, so that the distance between the two guide slopes 14 decreases from the top to the bottom. In this way, by arranging the guide slopes 14 on the hole wall of the plug hole 11, when the connector 3 is inserted into the plug hole 11 from the notch 12 of the plug hole 11, the guide slopes 14 can be used to guide the connector 3 to be quickly and accurately inserted into the plug hole 11, thereby improving the convenience of assembly.

[0053] Optionally, combined Figure 2 and Figure 8As shown, when the hole wall of the connector hole 11 is a closed annular structure, the sealing structure also includes a sealing ring 42, and the connector 3 abuts against the inner side or outer side of the shell 1 through the sealing ring 42, or the sealing ring 42 is sleeved on the connector 3 and abuts against the hole wall of the connector hole 11.

[0054] It should be noted that the inner side surface of the shell 1 refers to the side surface located in the inner space of the shell 1 , and correspondingly, the outer side surface of the shell 1 refers to the side surface located in the outer space of the shell 1 .

[0055] In this optional embodiment, the sealing ring 42 is arranged between the housing 1 and the connector 3. After the connector 3 is inserted into the socket 11, it is fixed to the housing 1 by, for example, bolts, and a sealed connection is achieved through the sealing ring 42. For example, in one example, the sealing ring 42 is arranged between the limit plate 33 of the connector 3 and, for example, the inner side surface / outer side surface of the housing 1, so that an end face seal is formed between the connector 3 and the housing 1 through the sealing ring 42; in another example, the sealing ring 42 is sleeved on the connector 3 and located in the socket 11, so that the housing 1 is sealedly connected to the connector 3 at the socket 11 through the sealing ring 42. At this time, the connector 3 and the housing 1 are equivalent to forming a radial seal through the sealing ring 42. In practical applications, a suitable setting method can be selected according to different forms of connectors 3 and different structures of sockets 11. In this way, the assembly method of the connector 3 is changed by using a sealing ring 42 to perform end face sealing between the shell 1 and the connector 3 or using a sealing ring 42 to perform radial sealing at the connector hole 11 of the shell 1 and the connector 3, so that no large groove is generated in the assembly area of ​​the shell 1 and the cover plate 2 at the connector 3, thereby reducing the amount of sealant used between the cover plate 2 and the shell 1.

[0056] An embodiment of the utility model provides a vehicle, comprising the motor controller as described above.

[0057] The beneficial effects of the vehicle of this embodiment relative to the prior art are the same as those of the above-mentioned motor controller, which will not be described in detail here.

[0058] Although the utility model is disclosed as above, the protection scope of the utility model is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the utility model, and these changes and modifications will fall within the protection scope of the utility model.

Claims

1. A motor controller, characterized in that: It comprises a housing (1), a cover plate (2), a connector (3) and a sealing structure (4); the housing (1) is provided with a connector hole (11), and the connector (3) is inserted into the connector hole (11); A notch (12) is provided on the hole wall of the connector hole (11) on the side facing the cover plate (2), and a groove (31) is provided on the connector (3) at a position corresponding to the notch (12), the sealing structure (4) comprises a sealing member (41) and a sealing adhesive, the sealing member (41) is provided between the cover plate (2) and the connector (3) and is located at the groove (31), and the sealing adhesive is connected between the housing (1) and the cover plate (2) and fills the groove (31); or, The hole wall of the connecting hole (11) is a closed annular structure, and the sealing structure (4) comprises a sealant, and the sealant is connected between the shell (1) and the cover plate (2).

2. The motor controller according to claim 1, characterized in that: When the sealing structure (4) includes the sealing member (41), the sealing member (41) is connected to at least one of the cover plate (2) and the connector (3).

3. The motor controller according to claim 1, characterized in that: When the sealing structure (4) includes the sealing component (41), the sealing component (41) and the cover plate (2) are an integrated structure.

4. The motor controller according to claim 3, characterized in that: The sealing member (41) is formed by the cover plate (2) protruding toward the side where the groove (31) is located.

5. The motor controller according to claim 2, characterized in that: The sealing member (41) is a strip-shaped structure and is arranged parallel to the groove (31).

6. The motor controller according to claim 1, characterized in that: When the sealing structure (4) includes the sealing element (41), a limiting groove (13) is also provided on the hole wall of the connector (11), and the limiting groove (13) is arranged around the center line of the connector (11). A limiting protrusion (32) is provided on the connector (3), and the limiting protrusion (32) is inserted into the limiting groove (13).

7. The motor controller according to claim 6, characterized in that: A guiding inclined surface (14) is also provided on the hole wall of the connector (11); the guiding inclined surface (14) is located at the notch (12) and is used to guide the connector (3) to be inserted into the connector (11) from the notch (12).

8. The motor controller according to claim 1, characterized in that: When the hole wall of the connector hole (11) is a closed annular structure, the sealing structure further comprises a sealing ring (42), and the connector (3) abuts against the inner side surface or the outer side surface of the housing (1) through the sealing ring (42), or the sealing ring (42) is sleeved on the connector (3) and abuts against the hole wall of the connector hole (11).

9. The motor controller according to claim 1, characterized in that: The connector (3) is a multi-PIN type connector.

10. A vehicle, characterized in that: Comprising a motor controller as claimed in any one of claims 1-9.

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