Sealing treatment device for wire outlet hole of motor
The design of the first fixing sleeve engaging with the through slot and the second fixing sleeve being threaded together solves the problem of the motor output end being non-removable from the motor housing, enabling convenient installation and efficient maintenance, and ensuring that the motor interior is not affected by moisture.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-17
AI Technical Summary
The existing technology uses a potting seal to connect the motor output terminal to the motor housing, which makes it non-removable, inconvenient to operate, has a long installation cycle, and is difficult to maintain.
By employing a first fixing sleeve that snaps into the through groove and a second fixing sleeve that is threaded into the groove, combined with the design of a connecting cylinder, sealing gasket, and groove, a detachable and sealed connection between the motor outlet hole and the cable is achieved.
It simplifies the installation and maintenance process, shortens the installation cycle, improves work efficiency, and prevents moisture from entering the motor through a multi-layer sealing system.
Smart Images

Figure CN224138811U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of motor sealing devices, and in particular to a sealing treatment device for motor outlet holes. Background Technology
[0002] An electric motor, also known as a motor, is a device that converts electrical energy into mechanical energy. The cable outlet is a structure on the motor that allows the cable to be led out from inside the motor to connect to an external power source and transmit power to the motor. The sealing structure fills the gap between the cable outlet and the cable to achieve waterproofing. Usually, the cable outlet needs to be sealed to the motor housing.
[0003] In existing technologies, the connection between the motor output terminal and the motor housing is generally achieved by applying sealant. After the sealant cures, the motor output terminal and the motor housing are fixedly connected as one unit and cannot be separated. This fixed and non-removable sealing connection method is inconvenient to operate during connection, requires waiting for the applied sealant to cure, has a long installation cycle, and is not convenient for initial installation or subsequent maintenance. Therefore, this utility model proposes a new solution. Utility Model Content
[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a motor outlet hole sealing treatment device, which can solve the problem of connecting the motor outlet end to the motor housing by means of glue injection. After the sealant cures, the motor outlet end and the motor housing are fixedly connected as one, and the two cannot be separated. This fixed and non-removable sealing connection method is inconvenient to operate during connection, requires waiting for the injected glue to cure, has a long installation cycle, is inconvenient for the initial installation, and is also inconvenient for the later maintenance.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a motor outlet hole sealing device, comprising a motor housing and a cable, wherein a through groove is provided on the surface of the motor housing, a first fixing sleeve is engaged inside the through groove, a second fixing sleeve is threaded onto the surface of the first fixing sleeve, and a connecting cylinder is fixedly connected to the inner side of the second fixing sleeve.
[0006] The cable surface is fitted with a connecting sleeve, and the surface of the connecting sleeve has multiple grooves.
[0007] A first sealing gasket is provided on the outside of the cable. The cross-section of the first sealing gasket is "V" shaped, and the first sealing gasket is snapped onto both sides of the connecting cylinder.
[0008] Preferably, the inner wall of the through groove is divided into two parts, the upper part of the through groove is cylindrical, and the lower part of the through groove is hexagonal prism.
[0009] Preferably, the first fixing sleeve is divided into upper and lower parts. The lower part of the first fixing sleeve is hexagonal prism-shaped and has a through-structure. The upper part of the first fixing sleeve is cylindrical.
[0010] Preferably, the inner side of the second fixing sleeve is vertically continuous, and the outer side of the second fixing sleeve is hexagonal prism-shaped.
[0011] Preferably, a second sealing gasket is fitted onto the surface of the first fixing sleeve.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. The motor outlet hole sealing device features a snap-fit connection between the first fixing sleeve and the through groove, and a threaded connection of the second fixing sleeve. This design is simple and convenient to operate, requiring no complex processes. When maintaining or replacing cables, the relevant components can be easily disassembled by unscrewing the second fixing sleeve, greatly shortening installation and maintenance time and improving work efficiency.
[0014] 2. This motor outlet sealing device, through the combined action of a first fixing sleeve, a second fixing sleeve, a connecting cylinder, a first sealing gasket, a connecting sleeve, and a groove, achieves an efficient and reliable sealed connection between the motor outlet and the cable, while also ensuring convenient installation and maintenance. Under the compression of the connecting cylinder, the first sealing gasket tightly adheres to the surface of the cable and the connecting cylinder, filling gaps and preventing moisture from entering the motor. When the second fixing sleeve is tightened, it drives the connecting cylinder to press the first sealing gasket, enhancing the sealing effect. The groove on the surface of the connecting sleeve increases the sealing between the cable and the motor. The multiple components work together to construct a multi-layer sealing system, ensuring that the inside of the motor is not disturbed by external moisture or other impurities. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0016] Figure 1 This is a schematic diagram of the structure of a motor outlet hole sealing device according to the present invention;
[0017] Figure 2 This is a schematic diagram of the second fixing sleeve of this utility model;
[0018] Figure 3 This is a schematic diagram of the through groove of this utility model;
[0019] Figure 4 This is a schematic diagram of the cable of this utility model;
[0020] Figure 5 This is a schematic diagram of the connecting sleeve of this utility model;
[0021] Figure 6 This is a schematic diagram of the first fixing sleeve of this utility model;
[0022] Figure 7 This is a schematic diagram of the connecting cylinder of this utility model;
[0023] Figure 8 This is a schematic diagram of the first sealing gasket of this utility model.
[0024] Reference numerals in the attached drawings: 1. Motor housing; 2. Through groove; 3. First fixing sleeve; 4. Second fixing sleeve; 5. Connecting cylinder; 6. First sealing gasket; 7. Second sealing gasket; 8. Cable; 9. Connecting sleeve; 10. Groove. Detailed Implementation
[0025] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.
[0027] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequential relationship of the indicated technical features.
[0028] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0029] Please see Figure 1-8This utility model provides a technical solution: a motor outlet hole sealing device, including a motor housing 1 and a cable 8. A through groove 2 is opened on the surface of the motor housing 1. A first fixing sleeve 3 is snapped into the inside of the through groove 2. A second fixing sleeve 4 is threaded onto the surface of the first fixing sleeve 3. A connecting cylinder 5 is fixedly connected to the inner side of the second fixing sleeve 4. A connecting sleeve 9 is sleeved on the surface of the cable 8. A plurality of grooves 10 are opened on the surface of the connecting sleeve 9. A first sealing gasket 6 is provided on the outer side of the cable 8. The cross-section of the first sealing gasket 6 is "V" shaped. The first sealing gasket 6 is snapped onto both sides of the connecting cylinder 5.
[0030] The inner wall of the through groove 2 is divided into two parts: the upper part of the through groove 2 is cylindrical and the lower part of the through groove 2 is hexagonal prism.
[0031] The first fixing sleeve 3 is divided into upper and lower parts. The lower part of the first fixing sleeve 3 is hexagonal prism-shaped and has a through-structure. The upper part of the first fixing sleeve 3 is cylindrical.
[0032] The inner side of the second fixing sleeve 4 is through-hole, and the outer side of the second fixing sleeve 4 is hexagonal prism.
[0033] The surface of the first fixing sleeve 3 is fitted with a second sealing gasket 7.
[0034] When using the device, first put the first sealing gasket 6 on the cable 8. Since the first sealing gasket 6 has a "V" shaped cross section, it can better fit the surface of the cable 8 and the connecting sleeve 5. Then put the connecting sleeve 9 on the cable 8. The multiple grooves 10 on the surface of the connecting sleeve 9 can enhance the sealing effect and friction, and prevent the cable 8 from sliding inside the connecting sleeve 9.
[0035] The first fixing sleeve 3 is snapped into the through groove 2 of the motor housing 1; the upper part of the through groove 2 is cylindrical and the lower part is hexagonal prism. Correspondingly, the lower part of the first fixing sleeve 3 is hexagonal prism and is open from top to bottom, while the upper part is cylindrical. This design allows the first fixing sleeve 3 to be stably installed in the through groove 2. The hexagonal prism structure increases the contact area and friction between the two, preventing the first fixing sleeve 3 from rotating or shifting in the through groove 2.
[0036] The second fixing sleeve 4 is threaded onto the surface of the first fixing sleeve 3; the inner side of the second fixing sleeve 4 is open from top to bottom, and the outer side is hexagonal prism-shaped, which facilitates connection with the first fixing sleeve 3. At the same time, the hexagonal prism-shaped structure makes it easy for the operator to manually rotate and install; the connecting cylinder 5 is fixedly connected to the inner side of the second fixing sleeve 4. As the second fixing sleeve 4 is tightened, the connecting cylinder 5 gradually approaches the first fixing sleeve 3 and the cable 8.
[0037] When the second fixing sleeve 4 is tightened to the appropriate position, the connecting cylinder 5 presses the first sealing gasket 6 tightly onto the cable 8. The "V"-shaped first sealing gasket 6 undergoes elastic deformation under pressure, closely adhering to the surfaces of the cable 8 and the connecting cylinder 5, effectively filling the gap between them and providing a good sealing effect. At the same time, the second sealing gasket 7 fitted onto the surface of the first fixing sleeve 3 further enhances the sealing between the first fixing sleeve 3 and the motor housing 1, preventing moisture from entering the motor from the connection between the first fixing sleeve 3 and the motor housing 1.
[0038] When it is necessary to maintain the motor or replace the cable 8, simply unscrew the second fixing sleeve 4 to remove the connecting cylinder 5, the first sealing gasket 6, the connecting sleeve 9, and the cable 8 from the motor housing 1. The operation is simple and does not require waiting for the glue to cure, which greatly shortens the maintenance time.
[0039] Structural Description: Motor housing 1: It is the basic load-bearing component of the entire device. The through groove 2 on the surface is used to install the first fixing sleeve 3, providing an installation position for the subsequent sealing connection and ensuring a stable connection between the entire sealing device and the motor.
[0040] Through groove 2: Its special structure has a cylindrical upper part and a hexagonal prism lower part, which is adapted to the shape of the first fixing sleeve 3. Through this structural design, the first fixing sleeve 3 can be stably clamped onto the motor housing 1, increasing the contact area and friction between the two, and preventing the first fixing sleeve 3 from rotating or displacing inside the motor housing 1.
[0041] First fixing sleeve 3: As a key component connecting motor housing 1 and second fixing sleeve 4, the lower part of the hexagonal prism structure with the through groove 2 cooperates with the through groove 2 to achieve stable installation, and the upper part of the cylindrical structure provides the basis for the threaded connection of the second fixing sleeve 4. At the same time, the second sealing gasket 7 sleeved on its surface can enhance the sealing between it and the motor housing 1.
[0042] The second fixing sleeve 4 is connected to the first fixing sleeve 3 by threads. The hexagonal prism structure on the outside makes it easy for the operator to manually rotate and install it. The inner side is through and fixedly connected to the connecting cylinder 5. During the tightening process, the connecting cylinder 5 is moved to squeeze the first sealing gasket 6, thereby completing the seal.
[0043] Connecting cylinder 5: It is fixedly connected to the second fixing sleeve 4. When the second fixing sleeve 4 is tightened, it presses the first sealing gasket 6 tightly onto the cable 8, and works with the first sealing gasket 6 to seal and fill the gap between the cable 8 and the motor housing 1.
[0044] The first sealing gasket 6 has a "V" shaped cross section and is fitted onto the cable 8. Under the pressure of the connecting cylinder 5, it undergoes elastic deformation, tightly adhering to the surfaces of the cable 8 and the connecting cylinder 5, effectively filling the gap between them, and playing a good sealing role to prevent moisture from entering the motor.
[0045] Second sealing gasket 7: It is fitted onto the surface of the first fixed sleeve 3 to enhance the sealing between the first fixed sleeve 3 and the motor housing 1, and further prevent moisture from entering the motor from the connection between the first fixed sleeve 3 and the motor housing 1.
[0046] Cable 8: As the power transmission carrier of the motor, it achieves a sealed connection with the motor housing 1 through the sealing treatment device, ensuring the normal operation of the motor while preventing external moisture and other impurities from damaging the inside of the motor.
[0047] Connecting sleeve 9: Sleeves over cable 8. Multiple grooves 10 on the surface enhance the sealing effect and friction, prevent cable 8 from sliding inside the connecting sleeve 9, and ensure the stability of cable 8 during the sealing connection process.
[0048] Groove 10: It is formed on the surface of the connecting sleeve 9 to increase the friction and sealing effect between the connecting sleeve 9 and the cable 8, so as to better fix and seal the cable 8.
[0049] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. An electrical machine terminal hole sealing apparatus, characterized by: Includes a motor housing (1) and a cable (8). A through groove (2) is provided on the surface of the motor housing (1). A first fixing sleeve (3) is snapped into the inside of the through groove (2). A second fixing sleeve (4) is threaded onto the surface of the first fixing sleeve (3). A connecting cylinder (5) is fixedly connected to the inside of the second fixing sleeve (4). A connecting sleeve (9) is fitted onto the surface of the cable (8), and multiple grooves (10) are formed on the surface of the connecting sleeve (9); A first sealing gasket (6) is provided on the outside of the cable (8). The cross-section of the first sealing gasket (6) is "V" shaped. The first sealing gasket (6) is snapped onto both sides of the connecting cylinder (5).
2. The motor terminal hole sealing apparatus according to claim 1, characterized by: The inner wall of the through groove (2) is divided into two parts: the upper part of the through groove (2) is cylindrical and the lower part of the through groove (2) is hexagonal prism.
3. The motor terminal hole sealing apparatus according to claim 1, characterized by: The first fixing sleeve (3) is divided into upper and lower parts. The lower part of the first fixing sleeve (3) is hexagonal prism-shaped and has a through-structure. The upper part of the first fixing sleeve (3) is cylindrical.
4. The motor terminal hole sealing apparatus of claim 1, wherein: The inner side of the second fixing sleeve (4) is through-hole, and the outer side of the second fixing sleeve (4) is hexagonal prism.
5. The motor terminal hole sealing apparatus of claim 1, wherein: The surface of the first fixing sleeve (3) is fitted with a second sealing gasket (7).