Motor waterproof cover structure

Abstract

The utility model relates to a motor waterproof cover structure, and relates to the technical field of motor waterproofness, the motor waterproof cover structure comprises a motor and a waterproof cover, the motor comprises a motor shaft and a motor housing, and the motor housing is provided with a mounting groove for mounting the waterproof cover; three positioning grooves are uniformly formed in the outer side wall of the waterproof cover in the circumferential direction; three positioning protrusions corresponding to the positioning grooves are arranged in the mounting groove, the positioning protrusions are clamped into the positioning grooves, when the motor shaft rotates at a high speed to be centered, the waterproof cover cannot be driven by the motor shaft, and it is avoided that the waterproof cover is centered mistakenly to affect operation of the motor.

Description

Technical Field

[0001] The present application relates to the technical field of motor waterproofing, and in particular to a motor waterproofing cover structure. Background Art

[0002] A motor is a common power device that drives the rotor to rotate by applying force to the coil in a magnetic field, thereby driving the motor shaft in the rotor to rotate and generate power. When the motor is working, water entering the motor will cause damage and failure, so the motor is usually equipped with a waterproof device, a common waterproof device being a waterproof cover. When assembling the motor, the waterproof cover needs to be centered to prevent the waterproof cover from being miscentered and contacting the motor shaft, causing power loss and parts damage.

[0003] With regard to the above-mentioned related technologies, when the motor shaft rotates at high speed to find the center, the existing waterproof cover may be driven by the motor shaft, and the fixing glue filled between the waterproof cover and the installation groove may be thrown out; at the same time, it may also cause the waterproof cover to be inaccurately found, making the motor scrapped. Utility Model Content

[0004] The purpose of the present application is to provide a motor waterproof cover structure to improve the problem that the waterproof cover is unstable when centering and affects the operation of the motor.

[0005] The present application provides a motor waterproof cover structure that adopts the following technical solutions:

[0006] A motor waterproof cover structure includes a motor and a waterproof cover. The motor includes a motor shaft and a motor housing. A mounting groove for mounting the waterproof cover is provided at the joint between the motor housing and the motor shaft. A mounting protrusion is provided at the bottom of the mounting groove on one side close to the motor shaft; the waterproof cover is provided with a guide groove for inserting the mounting protrusion corresponding to the mounting protrusion; a plurality of positioning grooves are evenly arranged on the outer wall of the waterproof cover in a circumferential direction; and a plurality of positioning protrusions are provided in the mounting groove corresponding to the positioning groove.

[0007] By adopting the above technical solution, inserting the installation protrusion into the guide groove can play a certain waterproof role; inserting the positioning protrusion into the positioning groove limits the displacement of the waterproof cover, and the waterproof cover will no longer rotate with the motor shaft when the motor shaft rotates at high speed to find the center, thereby avoiding the waterproof cover from being unstable in finding the center and contacting the motor shaft.

[0008] Preferably, a positioning chamfer is provided on a side of the positioning protrusion close to the waterproof cover.

[0009] By adopting the above technical solution, the setting of the positioning chamfer reduces the difficulty of inserting the positioning protrusion into the positioning groove when the waterproof cover is installed, thereby facilitating the installation of the waterproof cover.

[0010] Preferably, the outer side wall of the waterproof cover is provided with a plurality of fixing protrusions along the circumferential direction, and the fixing protrusions are located on one side of the waterproof cover that fits the bottom of the installation groove.

[0011] By adopting the above technical solution, when the glue for bonding the waterproof cover and the motor housing is filled in the installation groove, a plurality of fixing protrusions can increase the contact area between the glue and the waterproof cover, thereby making the bonding of the waterproof cover more firmly; at the same time, the groove formed between the fixing protrusions can also effectively fix the glue, and compared with the smooth outer wall of the existing waterproof cover, the glue will not be easily thrown out.

[0012] Preferably, the outer side wall of the waterproof cover is provided with a placement chamfer along the circumferential direction.

[0013] By adopting the above technical solution, the placement chamfer increases the space between the waterproof cover and the installation groove, that is, the space for glue filling is increased, thereby increasing the glue filling amount, making the waterproof cover and the motor housing more firmly bonded.

[0014] Preferably, the inner side wall of the waterproof cover close to the motor shaft is provided with a guide chamfer along the circumferential direction.

[0015] By adopting the above technical solution, when the motor shaft is inserted into the waterproof cover, the guide chamfer is used to make the installation of the motor shaft easier.

[0016] Preferably, a rubber gasket is provided on the outer side wall of the mounting protrusion.

[0017] By adopting the above technical solution, a rubber gasket is arranged between the waterproof cover and the installation protrusion to limit the movement of the waterproof cover, thereby further fixing the waterproof cover; the rubber gasket can also help to position the waterproof cover in the center.

[0018] Preferably, a fixing groove is provided on one side of the installation protrusion that is in contact with the rubber gasket, and a fixing protrusion is provided on the rubber gasket corresponding to the fixing groove, and the fixing protrusion cooperates with the fixing groove.

[0019] By adopting the above technical solution, the rubber gasket is fixed in the installation groove, so as to prevent the rubber gasket from loosening and causing the waterproof cover to be unfastened.

[0020] Preferably, a mounting chamfer is provided on one side of the rubber gasket that is in contact with the waterproof cover.

[0021] By adopting the above technical solution, when installing the waterproof cover, the installation chamfer can facilitate the rubber gasket to be installed in the waterproof cover, making the installation process easier.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] By providing a positioning groove on the waterproof cover and providing a positioning protrusion corresponding to the positioning groove on the mounting groove, the waterproof cover can no longer rotate with the motor shaft, which greatly reduces the impact of the waterproof cover moving when the motor shaft rotates at high speed to find the center;

[0024] The outer wall of the waterproof cover is provided with a fixed protrusion, which increases the contact area with the glue, thereby improving the stability of the waterproof cover; the outer wall of the waterproof cover is also provided with a placement chamfer, which increases the filling amount of glue and further improves the firmness of the waterproof cover bonding;

[0025] A rubber gasket is arranged on the inner side wall of the installation groove and fixed by using an embedding groove and an embedding protrusion, so as to further limit the movement of the waterproof cover and make the waterproof cover more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of a motor waterproof cover structure of the present application.

[0027] Figure 2 It is a cross-sectional schematic diagram for illustrating the internal structure of the motor in the embodiment.

[0028] Figure 3 yes Figure 2 Enlarged view of part A in .

[0029] In the figure, 1. motor; 11. motor shaft; 12. motor housing; 13. mounting groove; 131. mounting protrusion; 132. positioning protrusion; 1321. positioning chamfer; 133. embedded groove; 2. waterproof cover; 21. guide groove; 22. positioning groove; 23. fixing protrusion; 24. placement chamfer; 25. guide chamfer; 3. rubber gasket; 31. embedded protrusion; 32. mounting chamfer. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1 -Attached Figure 3 , further details of this application are given.

[0031] A motor waterproof cover structure, referring to Figure 1 and Figure 2 , including a motor 1 and a waterproof cover 2. The motor 1 includes a motor shaft 11 and a motor housing 12. A mounting groove 13 for mounting the waterproof cover 2 is arranged at the intersection of the motor housing 12 and the motor shaft 11; a mounting protrusion 131 is arranged at the bottom of the mounting groove 13, and the waterproof cover 2 has a guide groove 21 corresponding to the mounting protrusion 131 for the mounting protrusion 131 to be inserted into; three evenly distributed positioning grooves 21 are arranged on the outside of the waterproof cover 2, and a positioning protrusion 132 is arranged corresponding to the mounting groove 13 to be inserted into the positioning groove 21, and at the same time, a positioning chamfer 132 is arranged on the positioning protrusion 132 for facilitating the placement of the waterproof cover 2; when the motor shaft 11 is rotated at a high speed to find the center, the waterproof cover 2 will not rotate with the motor shaft 11, thereby ensuring that the waterproof cover 2 is accurately found, and the glue (not shown in the figure) filled in the mounting groove 13 will not be thrown out to cause loose bonding.

[0032] Reference Figure 1 and Figure 2The outer side of the waterproof cover 2 is evenly distributed with fixed protrusions 23, which can increase the contact area with the glue filled in the installation groove 13, thereby enhancing the bonding strength of the glue and making the waterproof cover more stable; the outer side wall of the waterproof cover 2 is placed with chamfers 24, which can increase the glue filled between the installation groove 13 and the waterproof cover 2, and also increase the bonding effect of the glue.

[0033] Reference Figure 2 and Figure 3 In order to facilitate the insertion of the motor shaft 11 into the waterproof cover 2 , a guide chamfer 25 is provided at the bottom of the waterproof cover 2 .

[0034] Reference Figure 3 A rubber gasket 3 is surrounded by the outer wall of the mounting protrusion 131, which is used to further limit the displacement of the waterproof cover 2 and help to center the waterproof cover 2; there is an embedding groove 133 at the bottom of the mounting protrusion 131, and the rubber gasket 3 can be fixed by inserting the embedding protrusion 31 into the embedding groove 133 to prevent the rubber gasket 3 from loosening during operation; at the same time, in order to facilitate the installation of the waterproof cover 2, an installation chamfer 32 is provided on the side where the rubber gasket 3 contacts the waterproof cover 2.

[0035] The implementation principle of the embodiment of the present application is:

[0036] When assembling the motor 1 and installing the waterproof cover 2, the motor shaft 11 can be inserted along the guide chamfer 25 at the bottom of the waterproof cover 2; the guide groove 21 of the waterproof cover 2 corresponds to the mounting protrusion 131 at the bottom of the mounting groove 13 and can be inserted along the mounting chamfer 32 on the rubber gasket 3 during insertion. At the same time, the positioning groove 22 of the waterproof cover 2 should be aligned with the positioning protrusion 132 on the side of the mounting groove 13 to limit the movement of the waterproof cover 2 and prevent the waterproof cover 2 from rotating with the high-speed rotation of the motor shaft 11.

[0037] After installing the waterproof cover 2, it is necessary to fill glue between the installation groove 13 and the waterproof cover 2. Note that the glue must be fully filled into the fixing protrusion 23. After the glue is filled, the motor shaft 11 must be rotated at high speed to center the waterproof cover 2. After centering, the waterproof cover 2 cannot contact the motor shaft 11. After centering, the glue is solidified to completely fix the waterproof cover 2.

[0038] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A motor waterproof cover structure, comprising a motor (1) and a waterproof cover (2), wherein the motor (1) comprises a motor shaft (11) and a motor housing (12), and a mounting groove (13) for mounting the waterproof cover (2) is provided at a joint between the motor housing (12) and the motor shaft (11), wherein: A mounting protrusion (131) is provided on one side of the bottom of the mounting groove (13) close to the motor shaft (11); the waterproof cover (2) is provided with a guide groove (21) for inserting the mounting protrusion (131) corresponding to the mounting protrusion (131); a plurality of positioning grooves (22) are evenly arranged on the outer wall of the waterproof cover (2) in a circumferential direction; and a plurality of positioning protrusions (132) are provided in the mounting groove (13) corresponding to the positioning groove (22).

2. The motor waterproof cover structure according to claim 1, characterized in that: A positioning chamfer (1321) is provided on one side of the positioning protrusion (132) close to the waterproof cover (2).

3. The motor waterproof cover structure according to claim 1, characterized in that: A plurality of fixing protrusions (23) are provided on the outer side wall of the waterproof cover (2) along the circumferential direction, and the fixing protrusions (23) are located on one side of the waterproof cover (2) that is in contact with the bottom of the installation groove (13).

4. The motor waterproof cover structure according to claim 1, characterized in that: The outer side wall of the waterproof cover (2) is provided with a placement chamfer (24) along the circumferential direction.

5. The motor waterproof cover structure according to claim 1, characterized in that: The inner side wall of the waterproof cover (2) close to the motor shaft (11) is provided with a guide chamfer (25) along the circumferential direction.

6. The motor waterproof cover structure according to claim 1, characterized in that: A rubber gasket (3) is provided on the outer side wall of the mounting protrusion (131).

7. The motor waterproof cover structure according to claim 6, characterized in that: A fixing groove (133) is provided on one side of the mounting protrusion (131) that is in contact with the rubber gasket (3); a fixing protrusion (31) is provided on the rubber gasket (3) corresponding to the fixing groove (133); and the fixing protrusion (31) cooperates with the fixing groove (133).

8. The motor waterproof cover structure according to claim 6, characterized in that: A mounting chamfer (32) is provided on one side of the rubber gasket (3) that is in contact with the waterproof cover (2).

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