Waterproof connection assembly and controller assembly

Abstract

The application belongs to the technical field of controller assembly waterproof technology, and discloses a waterproof connecting assembly and a controller assembly. The waterproof connecting assembly comprises a shell, a sealing structure and a sealing cover. A characteristic shell wall of the shell is provided with a protruding part. The protruding part is provided with a sealing groove. The characteristic shell wall is provided with a first sealing through hole communicating with the sealing groove. The sealing structure is arranged in the sealing groove. The sealing structure is provided with a second sealing through hole. At least part of the sealing cover is arranged in the sealing groove. The sealing cover is provided with a third sealing through hole. The sealing cover is connected to the characteristic shell wall. The sealing structure is pressed and fixed to the characteristic shell wall and the groove wall of the sealing groove by the sealing cover. The waterproof connecting assembly and the controller assembly provided by the application have high sealing performance and high assembly efficiency.

Description

Technical Field

[0001] This utility model relates to the field of waterproof controller assembly technology, and in particular to a waterproof connection component and a controller assembly. Background Technology

[0002] Motor controllers are crucial components in devices such as electric vehicles, electric bicycles, CNC machine tools, home appliances, and drones. A motor controller is used to control at least one of the following parameters of a motor: starting and stopping, rotation direction, speed, and torque, enabling the motor to respond to demands.

[0003] The motor controller is housed within a enclosure, which can be an enclosed space or, in conjunction with other walls, form an enclosed space to meet waterproofing and dustproofing requirements. The motor controller's wiring harness extends from the side wall of the enclosure to establish electrical connections with the motor and other terminals. The waterproofing between the wiring harness and the enclosure directly affects the motor controller's waterproofing and dustproofing performance. In related technologies, potting compound is used to seal the connection between the wiring harness and the enclosure; however, potting compound sealant requires a long curing time, which has specific requirements for production cycle time and affects assembly efficiency. Utility Model Content

[0004] This application provides a waterproof connection assembly to solve the technical problem of low assembly efficiency.

[0005] This application also provides a controller assembly with high sealing performance and high assembly efficiency.

[0006] Based on the above concept, the technical solution adopted in this application is:

[0007] Waterproof connection components, including:

[0008] The housing has a protrusion on its characteristic shell wall, a sealing groove on the protrusion, and a first sealing through hole communicating with the sealing groove on the characteristic shell wall.

[0009] A sealing structure, wherein the sealing structure is disposed within the sealing groove, and the sealing structure is provided with a second sealing perforation; and...

[0010] A sealing cap, at least a portion of which is disposed within the sealing groove, the sealing cap having a third sealing perforation, the sealing cap being connected to the feature shell wall, and the sealing cap pressing and fixing the sealing structure to the feature shell wall and the groove wall of the sealing groove.

[0011] In one or more embodiments of this application, the sealing cap includes a cap body and a connecting structure connected to the cap body. The cap body is provided with a third sealing perforation and is located on the side of the sealing structure away from the feature shell wall. The connecting structure passes through the sealing structure and is connected to the feature shell wall.

[0012] In one or more embodiments of this application, the cover body is disposed within the sealing groove.

[0013] In one or more embodiments of this application, the feature shell wall is provided with a first through hole, and the end of the connecting structure opposite to the cover body passes through the first through hole and is snapped into the feature shell wall.

[0014] In one or more embodiments of this application, the connection structure includes a plurality of connecting buckles, one end of which is connected to the cover body, and the other ends of the plurality of connecting buckles of the connection structure pass through the same first through hole and are all hooked onto the feature shell wall.

[0015] In one or more embodiments of this application, the included angle between the connecting buckle and the cover body is α, wherein 45°≤α≤90°.

[0016] In one or more embodiments of this application, the plurality of connecting buckles of the connecting structure are independently arranged and spaced apart; or, the plurality of connecting buckles of the connecting structure are connected to each other as a whole at one end near the cover body.

[0017] In one or more embodiments of this application, multiple connection structures are provided, and the multiple connection structures are spaced apart.

[0018] In one or more embodiments of this application, the circumferential outer wall of the connecting structure is provided with an interference portion, and the sealing structure abuts against the interference portion.

[0019] In one or more embodiments of this application, the connecting structure and the sealing structure are radially interference-fitted.

[0020] In one or more embodiments of this application, the surface of the cover body facing away from the connecting structure is provided with reinforcing ribs.

[0021] In one or more embodiments of this application, there is a gap between the circumferential side of the cover body and the groove sidewall of the sealing groove, and the cover body is provided with an abutting protrusion extending toward the groove sidewall of the sealing groove, the abutting protrusion abutting against the groove sidewall of the sealing groove.

[0022] In one or more embodiments of this application, the sealing structure is provided with a second through hole, and the second through hole is provided in a one-to-one correspondence with the connecting buckle, and the connecting buckle passes through the corresponding second through hole;

[0023] The sealing structure has a groove on the surface facing away from the feature shell wall, the second through hole is located on the bottom wall of the groove, and the connecting buckle has a thickened part placed in the groove.

[0024] In one or more embodiments of this application, the circumferential side of the sealing structure is provided with a radial sealing portion, and the radial sealing portion is interference-fitted with the sidewall of the sealing groove;

[0025] And / or, at least one end of the sealing structure in the axial direction is provided with an axial sealing part, the axial sealing part facing the bottom wall of the sealing groove is interference-fitted with the bottom wall of the sealing groove, and the axial sealing part facing the sealing cover is interference-fitted with the sealing cover.

[0026] In one or more embodiments of this application, the housing is provided with a mounting groove, and the protrusion is provided on the side of the feature housing wall opposite to the mounting groove.

[0027] In one or more embodiments of this application, the sealing structure is integrally formed on the sealing cover.

[0028] In one or more embodiments of this application, the corners of the sealing groove are configured as arc-shaped chamfers.

[0029] The controller assembly includes the waterproof connection components described above;

[0030] The controller assembly also includes a controller and a cable connected to the controller. The controller is located inside the housing, and the cable passes through the first sealing perforation, the second sealing perforation, and the third sealing perforation.

[0031] The beneficial effects of this application are:

[0032] The waterproof connection assembly provided in this application has a protrusion on the housing, and a sealing groove on the protrusion. This allows a sealing structure and at least a partial sealing cap to be disposed within the sealing groove. The sealing cap connects to the housing wall, and when connected to the housing wall, the sealing cap applies a compressive force to the sealing structure, thereby compressing the sealing structure and fixing it to the housing wall and the groove wall. Furthermore, the sealing structure, under the pressure of the sealing cap, tightly abuts against the cable, eliminating any gaps between the sealing structure and the cable. Thus, the waterproof connection assembly achieves a seal between the cable and the housing. Since the sealing structure is a molded part, rapid assembly is possible, improving assembly efficiency and reducing assembly costs. The controller assembly provided in this application has high sealing performance and high assembly efficiency. Attached Figure Description

[0033] Figure 1This is a first structural schematic diagram of the waterproof connection assembly provided in an embodiment of this application;

[0034] Figure 2 This is a second structural schematic diagram of the waterproof connection assembly provided in the embodiments of this application;

[0035] Figure 3 This is a first exploded view of the waterproof connection assembly provided in the embodiments of this application;

[0036] Figure 4 This is a second exploded view of the waterproof connection assembly provided in the embodiments of this application;

[0037] Figure 5 This is a partially enlarged cross-sectional view of a waterproof connection assembly provided in an embodiment of this application;

[0038] Figure 6 This is a schematic diagram of a sealing structure provided in an embodiment of this application;

[0039] Figure 7 This is a schematic diagram of a controller assembly provided in an embodiment of this application;

[0040] Figure 8 This is a schematic diagram of another controller assembly provided in an embodiment of this application;

[0041] Figure 9 This is a schematic diagram of another sealing structure provided in an embodiment of this application;

[0042] Figure 10 This is a schematic diagram of the structure of a sealing cap provided in an embodiment of this application;

[0043] Figure 11 This is a partially enlarged cross-sectional view of another waterproof connection component provided in an embodiment of this application;

[0044] Figure 12 This is a front view of the waterproof connection assembly provided in the embodiments of this application.

[0045] Explanation of reference numerals in the attached figures:

[0046] 10. Waterproof connection assembly; 1. Housing; 11. Featured housing wall; 111. First sealing perforation; 112. First through hole; 12. Protrusion; 121. Sealing groove; 13. Mounting groove; 14. Gap; 2. Sealing structure; 21. Second sealing perforation; 22. Second through hole; 23. Radial sealing part; 24. Axial sealing part; 25. Groove; 3. Sealing cover; 31. Third sealing perforation; 32. Cover body; 321. Reinforcing rib; 322. Abutting protrusion; 33. Connection structure; 331. Connection buckle; 3311. Columnar part; 3312. Hook part; 3313. Guide slope; 332. Interference part; 333. Thickened part; 20. Controller; 30. Cable. Detailed Implementation

[0047] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of this application will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining this application and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts relevant to this application are shown in the accompanying drawings, not all of them.

[0048] It should be understood that the phrase "an embodiment" or "one embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of this application. Therefore, "in one embodiment" or "in one embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0049] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0050] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0051] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. In the description of this embodiment, unless otherwise specified, "multiple" specifically refers to two or more.

[0052] In the description of this embodiment, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of description and simplification of operation. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0053] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on the other component or it can be located in between the component.

[0054] The technical solution of this application will be further described below with reference to the accompanying drawings and specific embodiments.

[0055] In related technologies, sealing structures obtained based on potting sealing processes have complex structures and high process costs due to the fluidity of the potting adhesive. Furthermore, they also suffer from low assembly efficiency.

[0056] Based on this, this embodiment provides a waterproof connection structure that can be used for sealing cable connections. It has low structural complexity, does not require curing time, improves assembly efficiency, and reduces assembly costs.

[0057] It should be noted that the waterproof connection structure provided in this embodiment can be applied to a controller assembly, which includes a controller and cables electrically connected to the controller. It is understood that the waterproof connection structure can also be applied to other assemblies requiring sealing and cable routing; this embodiment does not limit its application in this regard.

[0058] For example, such as Figures 1 to 11 As shown, the waterproof connection assembly 10 includes a housing 1, a sealing structure 2, and a sealing cap 3. The housing 1 houses the controller 20. Figure 1 As shown, the housing 1 has a characteristic housing wall 11, which is the housing wall through which the cable 30 is to pass. It can be the bottom wall or the top wall of the housing 1, or it can be the side wall of the housing 1. The specific location can be determined according to the position through which the cable 30 is to pass.

[0059] Please continue reading Figure 1 The feature shell wall 11 is provided with a protrusion 12, which protrudes relative to the feature shell wall 11. For example, the protrusion 12 protrudes along the thickness direction of the feature shell wall 11. Furthermore, the protrusion 12 is provided with a sealing groove 121. In this embodiment, the sealing groove 121 is provided on the surface of the protrusion 12 facing away from the feature shell wall 11. The sealing groove 121 is used to accommodate the sealing structure 2. In this embodiment, as shown... Figure 3 As shown, the feature shell wall 11 is provided with a first sealing through hole 111 that connects to the sealing groove 121. The cable 30 can pass through the sealing groove 121 and the first sealing through hole 111, and then be electrically connected to the controller 20.

[0060] Optionally, such as Figure 1 As shown, the housing 1 also has a mounting groove 13 for mounting the controller 20. In some embodiments, the mounting groove 13 is a semi-enclosed groove, and the mounting groove 13 and the wall connected to the housing 1 cooperate to form a sealed cavity, in which the controller 20 is located. In other embodiments, the mounting groove 13 itself is a sealed groove, and the controller 20 is disposed within the sealed groove; this embodiment does not limit this.

[0061] In some embodiments, such as Figure 1 and Figure 2 As shown, the protrusion 12 is located on the side of the feature shell wall 11 away from the mounting groove 13. That is, the protrusion 12 is located on the outside of the mounting groove 13. This arrangement does not occupy the installation space of the mounting groove 13 and also facilitates the installation of the sealing cover 3 from the outside.

[0062] In other embodiments, the protrusion 12 may also have a feature shell wall 1 facing the mounting groove 13 on one side. That is, the protrusion 12 is disposed in the mounting groove 13. This arrangement makes full use of the internal space of the mounting groove 13, makes the outer surface of the shell 1 neater, and also facilitates the miniaturization of the shell 1 and the waterproof connection assembly 10.

[0063] In some embodiments, such as Figure 3 or Figure 4As shown, multiple first sealing through holes 111 may be provided, with the multiple first sealing through holes 111 spaced apart, for multiple cables 30 to pass through. In other embodiments, there may be only one first sealing through hole 111, through which one or more cables 30 may pass. This embodiment does not limit this.

[0064] For example, such as Figure 5 As shown, the sealing structure 2 is disposed within the sealing groove 121. The sealing structure 2 is used to seal the gap 14 between the cable 30 and the groove wall of the sealing groove 121, thereby ensuring the seal between the cable 30 and the housing 1. In this embodiment, as... Figure 3 or Figure 4 As shown, the sealing structure 2 is provided with a second sealing through hole 21, which corresponds to and is connected to the first sealing through hole 111, so as to allow the cable 30 to pass through.

[0065] In this embodiment, please continue to refer to Figure 5 At least a portion of the sealing cap 3 is disposed within the sealing groove 121 to restrict its position via the sealing groove 121. Figure 3 or Figure 4 As shown, the sealing cover 3 is provided with a third sealing through hole 31, which corresponds to and communicates with the second sealing through hole 21. The third sealing through hole 31 is used for the cable 30 to pass through. In this embodiment, the sealing cover 3 is connected to the feature shell wall 11, and the sealing cover 3 presses and fixes the sealing structure 2 to the feature shell wall 11 and the groove wall of the sealing groove 121, thereby making the sealing structure 2 tightly abut against the feature shell wall 11 and the groove wall of the sealing groove 121, preventing dust, water, etc. from entering the interior of the shell 1 through the gap between the sealing structure 2 and the groove wall of the sealing groove 121 and the feature shell wall 1, thus achieving a high sealing effect. It should be noted that the sealing cover 3 pressing and fixing the sealing structure 2 to the groove wall of the sealing groove 121 can also be understood as the sealing cover 3 pressing and fixing the sealing structure 2 to the protrusion 12.

[0066] In this embodiment, by setting at least a portion of the sealing cap 3 in the sealing groove 121, on the one hand, the sealing cap 3 can be limited by the sealing groove 121 to ensure the installation position of the sealing cap 3, thereby effectively squeezing the sealing structure 2; on the other hand, the sealing cap 3 will not protrude too much from the protrusion 12, thereby making the size of the entire waterproof connection assembly 10 smaller, which is beneficial to the miniaturization of the waterproof connection assembly 10.

[0067] In some optional embodiments, the sealing structure 2 in this embodiment is an elastic structure capable of elastic deformation. When the sealing cover 3 squeezes the sealing structure 2, the sealing structure 2 can deform, thereby increasing the sealing area between the sealing structure 2 and the feature shell wall 11 and the groove wall of the sealing groove 121, thereby improving the sealing effect. Furthermore, by providing a sealing structure 2 capable of elastic deformation, it is also convenient to put the sealing structure 2 into the sealing groove 121.

[0068] There are many ways in which the sealing structure 2 can undergo elastic deformation. For example, the sealing structure 2 itself can be made of an elastic material, such as silicone or rubber.

[0069] When using the waterproof connection assembly 10 provided in this embodiment, taking the application of the waterproof connection assembly 10 to the controller assembly as an example, the cable 30 can be passed through the third sealing hole 31, the second sealing hole 21, and the first sealing hole 111 in sequence. At this time, in order to facilitate the passing of the cable 30, both the sealing structure 2 and the sealing cover 3 can be located outside the sealing groove 121. After adjusting the cable 30 to a suitable position, the sealing structure 2 is first inserted into the sealing groove 121, and then part of the sealing cover 3 is placed in the sealing groove 121 and connected to the sealing cover 3 and the feature shell wall, so that the sealing cover 3 presses against the sealing structure 2 and seals the gap 14 between the cable 30 and the shell 1.

[0070] The waterproof connection assembly 10 provided in this embodiment has a housing 1 with a protrusion 12 and a sealing groove 121, which allows the sealing structure 2 and at least part of the sealing cover 3 to be disposed in the sealing groove 121. The sealing cover 3 is connected to the feature housing wall, and when the sealing cover 3 is connected to the feature housing wall, it can apply a compressive force to the sealing structure 2, thereby compressing the sealing structure 2, so that the sealing structure 2 can be compressed and fixed to the feature housing wall 1 and the groove wall of the sealing groove 121. Furthermore, the sealing structure 2 can also be tightly abutted against the cable 30 under the compression of the sealing cover 3, so that there is no gap 14 between the sealing structure 2 and the cable 30. In this way, the waterproof connection assembly 10 achieves the sealing between the cable 30 and the housing 1. The sealing structure 2 is a molded part, so it can be quickly assembled, improving assembly efficiency and reducing assembly cost.

[0071] In addition, the absence of a complex mating structure makes the overall structure of the waterproof connection component 10 simpler and the cost lower.

[0072] The sealing cap 3 can have various specific structures; this embodiment exemplarily provides one sealing cap 3. For example... Figure 4As shown, the sealing cap 3 includes a cap body 32 and a connecting structure 33 connected to the cap body 32. The cap body 32 has a third sealing perforation 31 and is located on the side of the sealing structure 2 facing away from the feature shell wall 11. The cap body 32 can compress the sealing structure 2. The connecting structure 33 passes through the sealing structure 2 and is connected to the feature shell wall 11. That is, the end of the connecting structure 33 facing away from the cap body 32 passes through the sealing structure 2 and connects to the feature shell wall 11. When the connecting structure 33 is connected to the feature shell wall 11, it causes the cap body 32 to compress the sealing structure 2, thereby compressing and fixing the sealing structure 2 to the feature shell wall 1 and the groove wall of the sealing groove 121. The sealing cap 3 provided in this embodiment has a relatively simple structure. Furthermore, the sealing cap 3 has a portion located on the side of the sealing structure 2 facing away from the feature shell wall 11 and a portion connected to the feature shell wall 11, which improves the effect of compressing the sealing structure 2.

[0073] In at least some possible implementations, such as Figure 5 As shown, the cover body 32 is disposed within the sealing groove 121, that is, the cover body 32 is completely located within the sealing groove 121. With this arrangement, the cover body 32 is accommodated within the protrusion 12, making full use of the internal space of the protrusion 12, and also enabling the cover body 32 to apply a more uniform compressive force to the sealing structure 2, thereby ensuring that the sealing structure 2 and the circumferential groove wall of the sealing groove 121 are evenly abutted, further improving the sealing effect and reducing the occurrence of sealing blind spots.

[0074] In some embodiments, such as Figure 3 or Figure 4 As shown, the feature shell wall 11 is also provided with a first through hole 112, which is spaced apart from the first sealing through hole 111. The first through hole 112 is used for the connection structure 33 to pass through. For example, please refer to... Figure 2 and Figure 5 The end of the connecting structure 33 facing away from the cover body 32 passes through the first through hole 112 and is snapped onto the feature shell wall 11. That is, in this embodiment, the connecting structure 33 and the feature shell wall 11 are snapped together. This configuration has two advantages. First, since the connecting structure 33 passes through the feature shell wall 11 and connects to it, the connection strength between the connecting structure 33 and the feature shell wall 11 can be improved, thereby ensuring that sufficient compressive force is applied to the sealing structure 2 and improving the sealing effect. Second, the snap-fit ​​connection between the connecting structure 33 and the feature shell wall 11 enables a detachable connection, providing high flexibility.

[0075] Optionally, multiple connecting structures 33 may be provided, with the multiple connecting structures 33 spaced apart, to improve the uniformity of the compressive force applied by the cover body 32 to the sealing structure 2 and prevent sealing blind spots. Of course, it is understood that when the sealing structure 2 is small, only one connecting structure 33 may be provided, which can also effectively seal the gap 14 between the cable 30 and the housing 1.

[0076] In this embodiment, the number of first through holes 112 is the same as the number of connecting structures 33 and they correspond one-to-one. The connecting structures 33 are inserted through the corresponding first through holes 112.

[0077] In at least one possible implementation, such as Figure 4 As shown, each connecting structure 33 includes multiple connecting clips 331. One end of each connecting clip 331 is connected to the cover body 32, and the other ends of the multiple connecting clips 331 of the connecting structure 33 pass through the same first through hole 112 and are all hooked onto the feature shell wall 11. With this arrangement, by hooking the end of the connecting clip 331 away from the cover body 32 onto the feature shell wall 11, it is possible to prevent the connecting clip 331 from moving relative to the feature shell wall 11, thereby preventing the cover body 32 from moving relative to the feature shell wall 11. This allows the cover body 32 to always apply sufficient compressive force to the sealing structure 2, ensuring a sealing effect. Multiple connecting buckles 331 of the connecting structure 33 are all inserted into the same first through hole 112. Since the end of the connecting buckle 331 away from the cover body 32 can be understood as the free end, the free end of the connecting buckle 331 can undergo elastic deformation. When inserted into the first through hole 112, the multiple free ends can approach each other to pass smoothly through the first through hole 112. After passing through the first through hole 112, the free end of each connecting buckle 331 is reset and can then be engaged with the feature shell wall 11. When withdrawing from the first through hole 112, the multiple free ends can also be controlled to approach each other and thus retract the first through hole 112. In this way, it is convenient for multiple connecting buckles 331 to be inserted into and pulled out of the first through hole 112, thereby realizing the detachable connection between the connecting structure 33 and the feature shell wall 11.

[0078] It should be noted that in this embodiment, the multiple connecting clips 331 specifically refer to two or more, wherein, Figure 4 This is a schematic diagram showing that each connecting structure 33 includes two connecting clips 331. Figures 8 to 11 This is a schematic diagram of the connecting structure 33, which includes four connecting clips 331.

[0079] In some embodiments, such as Figure 4 or Figure 10 As shown, this embodiment provides a connecting buckle 331, which includes a cylindrical portion 3311 and a hook portion 3312. The cylindrical portion 3311 is connected between the cover body 32 and the hook portion 3312, and the hook portion 3312 can hook onto the feature shell wall 11. The hook portions 3312 of multiple connecting buckles 331 are arranged opposite to each other so as to abut against the feature shell wall 11.

[0080] Optionally, such as Figure 4As shown, the hook portion 3312 may be provided with a guide slope 3313 to facilitate the insertion of the hook portion 3312 into the first through hole 112, reducing the risk of jamming during assembly and further reducing the assembly difficulty. In this embodiment, the guide slope 3313 can be a plane or an arc surface, and this embodiment does not limit it.

[0081] In some alternative embodiments, such as Figure 4 As shown, the multiple connecting clips 331 of each connecting structure 33 are independent and spaced apart, and the connecting clips 331 do not affect each other. This arrangement is suitable for situations where the number of connecting clips 331 is small.

[0082] In other alternative embodiments, such as Figure 10 As shown, the multiple connecting clips 331 of each connecting structure 33 can also be connected into a single integrated structure. For example, the ends of multiple connecting structures 33 near the cover body 32 can be connected to each other as a single unit. In this way, when assembling the connecting clips 331 and the cover body 32, the multiple connecting clips 331 can be assembled simultaneously in one assembly process, improving assembly convenience. Furthermore, by connecting the ends of multiple connecting clips 331 near the cover body 32 as a single unit, it is suitable for situations where there are a large number of connecting clips 331 and the connecting clips 331 are relatively thin. The connection of the ends of the connecting clips 331 near the cover body 32 together increases the structural strength of that end, reducing the risk of breakage. The length of the unconnected parts of the connecting clips 331 is relatively short, thus also having high structural strength, reducing the risk of breakage during insertion into the first through hole 112, and improving the reliability and service life of the connection.

[0083] For example, such as Figure 6 As shown, the sealing structure 2 is provided with a second through hole 22 for the connecting structure 33 to pass through. In some embodiments, the second through hole 22 can be a single hole. When the connecting structure 33 includes multiple connecting clips 331, all of the multiple connecting clips 331 can pass through the second through hole 22. In other embodiments, the number of second through holes 22 can also be the same as the number of connecting clips 331, and they can correspond one-to-one. The connecting clips 331 are inserted into the corresponding second through holes 22 to further improve the contact sealing between the sealing structure 2 and the connecting clips 331.

[0084] In some alternative embodiments, such as Figure 6 and Figure 9 As shown, the sealing structure 2 has a groove 25 on its surface facing away from the feature shell wall 11, and a second through hole 22 is located on the bottom wall of the groove 25. That is, the size of the second through hole 22 is smaller than the size of the groove 25. Optionally, as shown... Figure 6 As shown, the groove 25 and the second through hole 22 can correspond one-to-one, or, as... Figure 9As shown, a plurality of second through holes 22 corresponding to the connecting buckle 331 of a connecting structure 33 can be disposed on the bottom wall of a groove 25. This embodiment does not limit this.

[0085] In this embodiment, as Figure 4 and Figure 10 As shown, the connecting buckle 331 is provided with a thickened portion 333 placed in the groove 25. By providing the thickened portion 333, the connection area between the connecting buckle 331 and the cover body 32 can be increased, thereby improving the connection strength and reducing the risk of the connecting buckle 331 breaking.

[0086] In some alternative embodiments, the thickened portion 333 may be formed by connecting multiple connecting buckles 331 to each other near one end of the cover body 32, but this embodiment does not limit this.

[0087] In at least one embodiment, the included angle between the connecting buckle 331 and the cover body 32 is α, where 45° ≤ α ≤ 90°. Figure 5 and Figure 11 This refers to the case where the included angle between the connecting buckle 331 and the cover body 32 is 90°. The included angle between the connecting buckle 331 and the cover body 32 can be within the range of 45°≤a≤80°, 60°≤a≤90°, 60°≤a≤80°, 45°≤a≤60°, etc. For example, the value of a can be any value of 45°, 60°, 65°, 70°, 80°, 85°, 90°, etc., or any value between any two values. This embodiment does not limit this.

[0088] In some embodiments, the sealing structure 2 and the sealing cover 3 may not be connected, but merely in contact. That is, the sealing structure 2 can move relative to the sealing cover 3. For example, the sealing structure 2 can move relative to the sealing cover 3 along the length direction of the connecting snap 331. This configuration allows the sealing structure 2 to be more flexible.

[0089] In other embodiments, the sealing structure 2 is integrally formed on the sealing cover 3, that is, the sealing structure 2 and the sealing cover 3 are fixedly connected. The sealing structure 2 can be formed on the sealing cover 3 by injection molding. In this way, the relative arrangement of the sealing structure 2 and the sealing cover 3 can be guaranteed, and there is no gap 14 between the sealing structure 2 and the cover body 32 and between the sealing structure 2 and the connecting buckle 331, which effectively improves the sealing effect.

[0090] In some alternative embodiments, such as Figure 10As shown, the circumferential outer wall of the connecting structure 33 is provided with an interference portion 332, and the sealing structure 2 abuts against the interference portion 332. The interference portion 332 protrudes relative to the circumferential outer wall of the connecting structure 33 and is used to increase the interference with the sealing structure 2, thereby reducing the risk of movement of the sealing structure 2 relative to the connecting structure 33, so that the relative position of the sealing structure 2 and the connecting structure 33 can be fixed. For example, as Figure 10 As shown, the interference portion 332 may be arranged around the thickened portion 333 and / or the connecting buckle 331 of the connecting structure 33.

[0091] In at least one embodiment, to improve the sealing effect between the connecting structure 33 and the sealing structure 2, the connecting structure 33 and the sealing structure 2 are radially interference-fitted. This eliminates the gap 14 between the connecting structure 33 and the sealing structure 2, thereby effectively improving the overall sealing performance of the waterproof connecting assembly 10. The radial interference fit between the connecting structure 33 and the sealing structure 2 means that the connecting structure 33 and the sealing structure 2 are interference-fitted in the radial direction. The radial direction of the connecting structure 33 is perpendicular to the direction in which the cable 30 passes through.

[0092] In some embodiments, such as Figure 5 and Figure 6 As shown, the circumferential side of the sealing structure 2 is provided with a radial sealing portion 23, which is interference-fitted with the sidewall of the sealing groove 121 to improve the sealing effect between the sealing structure 2 and the sidewall of the sealing groove 121 and reduce the risk of sealing failure. Furthermore, the radial sealing portion 23 has the advantage of being easily deformable, which can increase the contact area with the sidewall of the sealing groove 121, thereby increasing the sealing area.

[0093] Optionally, the radial sealing portion 23 is arranged around the circumferential side of the sealing structure 2 to form an effective seal in the circumference of the sealing structure 2. Multiple radial sealing portions 23 may be provided at intervals to form multiple seals and further improve the sealing performance.

[0094] In at least one implementation, please continue to see Figure 5 and Figure 6 At least one end of the sealing structure 2 in the axial direction is provided with an axial sealing portion 24. For example, in Figure 5 In the middle, the surface of the sealing structure 2 facing the bottom wall (i.e., the feature shell wall 11) of the sealing groove 121 is provided with an axial sealing part 24. The axial sealing part 24 is interference-fitted with the bottom wall of the sealing groove 121 so that the sealing structure 2 and the bottom wall of the sealing groove 121 have a high sealing effect.

[0095] Optionally, such as Figure 4As shown, the axial sealing part 24 is circumferentially disposed on the end face of the sealing structure 2. The second sealing perforation 21 and the second through hole 22 are both located inside the circumference of the axial sealing part 24, so that water, dust and the like will not enter the first sealing perforation 111 and the second through hole 22 through the gap 14 between the sealing structure 2 and the feature shell wall 11.

[0096] In this embodiment, when the sealing structure 2 is provided with an axial sealing part 24 at one end facing the sealing cover 3, the axial sealing part 24 facing the sealing cover 3 is interference-fitted with the sealing cover 3 so that the sealing structure 2 and the sealing cover 3 have a high sealing effect.

[0097] In at least one implementation, such as Figure 5 As shown, a gap 14 exists between the circumferential side surface of the cover body 32 and the groove sidewall of the sealing groove 121. Furthermore, as... Figure 4 and Figure 12 As shown, the cover body 32 has an abutment protrusion 322 extending toward the side wall of the sealing groove 121, which abuts against the side wall of the sealing groove 121. By providing the abutment protrusion 322, the cover body 32 and the protrusion 12 can be aligned and installed, reducing the risk of jamming during installation and improving the assembly success rate. In addition, since the sealing structure 2 is located on the side of the cover body 32 facing the feature shell wall 11, a gap 14 is provided between the circumferential side of the cover body 32 and the side wall of the sealing groove 121, so that when the sealing structure 2 is squeezed, the air between the sealing structure 2 and the groove wall of the sealing groove 121 can be discharged through the gap 14, which is beneficial to the deformation of the sealing structure 2.

[0098] In some alternative embodiments, such as Figure 3 As shown, the surface of the cover body 32 facing away from the connecting structure 33 is provided with reinforcing ribs 321. The reinforcing ribs 321 can increase the structural strength of the cover body 32, so that the cover body 32 does not need to be thick, thereby making the waterproof connecting assembly 10 lighter. Optionally, the reinforcing ribs 321 can be arranged in a cross shape on the cover body 32 with the first sealing perforation 111 as the center.

[0099] Optionally, the surface of the cover body 32 facing away from the connecting structure 33 may be provided with a shallow groove, and the reinforcing rib 321 is provided in the shallow groove. This arrangement ensures that the reinforcing rib 321 will not protrude from the protrusion 12, thereby improving the overall aesthetics of the waterproof connecting assembly 10 and facilitating the miniaturization of the waterproof connecting assembly 10.

[0100] In one or more embodiments, the corners of the sealing groove 121 are configured as rounded chamfers. Compared to right-angled corners, rounded chamfers reduce the risk of dead sealing angles, ensuring that the sealing structure 2 tightly abuts against the groove wall of the sealing groove 121 at any position along the circumference, thereby guaranteeing a higher sealing effect. The shape of the sealing structure 2 matches the shape of the sealing groove 121 to ensure the sealing effect, and the shape of the cover body 32 matches the shape of the sealing structure 2 to ensure the compression effect, thereby further improving the sealing performance.

[0101] Optionally, the sealing groove 121 in this embodiment can be a racetrack-shaped groove. Of course, it is understood that the shape of the sealing groove 121 can also be other shapes, and this embodiment does not limit this.

[0102] For example, such as Figure 7 and Figure 8 As shown, this embodiment also provides a controller assembly with high sealing effect and high assembly efficiency.

[0103] like Figure 7 and Figure 8 As shown, the controller assembly includes a controller 20, a cable 30, and the aforementioned waterproof connection component 10. The cable 30 is connected to the controller 20, which is located inside the housing 1. The cable 30 passes through the first sealing through hole 111, the second sealing through hole 21, and the third sealing through hole 31.

[0104] The controller assembly in this embodiment can be a motor controller assembly or other controller assemblies. The motor controller assembly can be a component in electric vehicles, electric bicycles, CNC machine tools, home appliances, drones, etc., and this embodiment does not limit this.

[0105] Obviously, the above embodiments of this application are merely examples for clear illustration and are not intended to limit the implementation of this application. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the scope of protection of the claims of this application.

Claims

1. A waterproof connection assembly, characterized in that, include: The housing has a protrusion on its characteristic shell wall, a sealing groove on the protrusion, and a first sealing through hole communicating with the sealing groove on the characteristic shell wall. A sealing structure, wherein the sealing structure is disposed within the sealing groove, and the sealing structure is provided with a second sealing perforation; and... A sealing cap, at least a portion of which is disposed within the sealing groove, the sealing cap having a third sealing perforation, the sealing cap being connected to the feature shell wall, and the sealing cap pressing and fixing the sealing structure to the feature shell wall and the groove wall of the sealing groove.

2. The waterproof connection assembly according to claim 1, characterized in that, The sealing cap includes a cap body and a connecting structure connected to the cap body. The cap body is provided with a third sealing perforation and is located on the side of the sealing structure away from the feature shell wall. The connecting structure passes through the sealing structure and is connected to the feature shell wall.

3. The waterproof connection assembly according to claim 2, characterized in that, The cover body is located within the sealing groove.

4. The waterproof connection assembly according to claim 2, characterized in that, The feature shell wall is provided with a first through hole, and the end of the connecting structure opposite to the cover body passes through the first through hole and is snapped into the feature shell wall.

5. The waterproof connection assembly according to claim 4, characterized in that, The connection structure includes multiple connecting buckles, one end of which is connected to the cover body, and the other ends of the multiple connecting buckles pass through the same first through hole and are all hooked onto the feature shell wall.

6. The waterproof connection assembly according to claim 5, characterized in that, The included angle between the connecting buckle and the cover body is α, where 45°≤α≤90°.

7. The waterproof connection assembly according to claim 5, characterized in that, The multiple connecting buckles of the connection structure are independent of each other and spaced apart; or, the multiple connecting buckles of the connection structure are connected to each other as one unit near one end of the cover body.

8. The waterproof connection assembly according to claim 2, characterized in that, The connection structure is provided in multiple ways, and the multiple connection structures are arranged at intervals.

9. The waterproof connection assembly according to claim 2, characterized in that, The connecting structure has an interference portion on its circumferential outer wall, and the sealing structure abuts against the interference portion.

10. The waterproof connection assembly according to claim 2, characterized in that, The connecting structure and the sealing structure are radially interference-fitted.

11. The waterproof connection assembly according to claim 2, characterized in that, The surface of the cover body facing away from the connecting structure is provided with reinforcing ribs.

12. The waterproof connection assembly according to claim 2, characterized in that, There is a gap between the circumferential side of the cover body and the groove sidewall of the sealing groove. The cover body is provided with an abutting protrusion extending toward the groove sidewall of the sealing groove, and the abutting protrusion abuts against the groove sidewall of the sealing groove.

13. The waterproof connection assembly according to claim 5, characterized in that, The sealing structure is provided with a second through hole, and the second through hole is provided in a one-to-one correspondence with the connecting buckle, and the connecting buckle passes through the corresponding second through hole; The sealing structure has a groove on the surface facing away from the feature shell wall, the second through hole is located on the bottom wall of the groove, and the connecting buckle has a thickened part placed in the groove.

14. The waterproof connection assembly according to any one of claims 1-13, characterized in that, The sealing structure has a radial sealing part on its circumferential side, and the radial sealing part is interference-fitted with the sidewall of the sealing groove. And / or, at least one end of the sealing structure in the axial direction is provided with an axial sealing part, the axial sealing part facing the bottom wall of the sealing groove is interference-fitted with the bottom wall of the sealing groove, and the axial sealing part facing the sealing cover is interference-fitted with the sealing cover.

15. The waterproof connection assembly according to any one of claims 1-13, characterized in that, The housing is provided with a mounting groove, and the protrusion is located on the side of the feature housing wall opposite to the mounting groove.

16. The waterproof connection assembly according to any one of claims 1-13, characterized in that, The sealing structure is integrally formed on the sealing cover.

17. The waterproof connection assembly according to any one of claims 1-13, characterized in that, The corners of the sealing groove are designed with rounded chamfers.

18. A controller assembly, characterized in that, Includes the waterproof connection assembly as described in any one of claims 1-17; The controller assembly also includes a controller and a cable connected to the controller. The controller is located inside the housing, and the cable passes through the first sealing perforation, the second sealing perforation, and the third sealing perforation.

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