Motor assembly structure and power output module thereof

Abstract

The utility model discloses a motor assembly structure and a power output module thereof, the motor assembly structure comprises a waterproof shell, an end cover and a motor, the waterproof shell is provided with a first annular protrusion, the end cover is provided with a second annular protrusion, the end cover is connected to the end portion of the first annular protrusion in a sealing mode, and the motor is connected to the waterproof shell. A main body of the motor is fixedly installed in the waterproof shell, the main body penetrates through the waterproof shell and is partially located in the first annular protrusion, an output shaft of the motor penetrates through the end cover and extends out of the second annular protrusion, and a dynamic sealing structure for supporting the output shaft to rotate is arranged in the second annular protrusion. According to the utility model, the main body of the motor is accommodated by the first annular bulge arranged on the waterproof shell, and the output shaft of the motor is accommodated by the second annular bulge arranged on the end cover, so that a waterproof structure which is convenient to mount and dismount can be formed, and the maintenance convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of swimming pool cleaning, in particular to a motor assembly structure and a power output module thereof. Background Art

[0002] Pool cleaning robots are used to clean dirt in swimming pools or water bodies. According to the different cleaning parts, they can be divided into surface cleaning robots, bottom cleaning robots and wall-climbing cleaning robots. Surface cleaning robots mainly consider the ability to float on the water surface and be able to float, bottom cleaning robots need to consider sinking to the bottom of the water and being able to walk on the bottom of the water, and wall-climbing cleaning robots need to be able to walk on the side walls. Regardless of the type of pool cleaning robot, it contains an organism and a cleaning device, and all need to operate in water.

[0003] In order to enable the pool cleaning robot to walk normally in the water and complete the cleaning work, generally, a motor needs to be provided to drive the execution component, and thus, the waterproof problem of the motor must be considered.

[0004] At present, most swimming pool cleaning robots have their motors installed in sealed cabins. The motor drive shaft passes through and extends out of the sealed cabin, and an oil seal is placed on the drive shaft to isolate the space inside and outside the sealed cabin. However, as the drive shaft rotates, the oil seal and the motor shaft will continue to wear against each other, causing the oil seal to lose its sealing effect. In order to solve the problem of seal failure, existing swimming pool cleaning robots need to remove the motor from the sealed cabin, replace the oil seal, and then install the motor in place. The maintenance process is complicated and the application is inconvenient.

[0005] Therefore, how to improve the convenience of installation and disassembly of the motor used in the swimming pool cleaning robot while ensuring the waterproof effect is a practical technical problem in the field. Utility Model Content

[0006] The purpose of the utility model is to provide a motor assembly structure and a power output module thereof to solve the problems existing in the above-mentioned prior art. A first annular protrusion arranged on the waterproof shell is used to accommodate the main body of the motor, and a second annular protrusion arranged on the end cover is used to accommodate the output shaft of the motor. A waterproof structure that is easy to install and disassemble can be formed, thereby improving the convenience of maintenance.

[0007] To achieve the above purpose, the utility model provides the following solutions:

[0008] The utility model provides a motor assembly structure, comprising a waterproof shell, an end cover and a motor, the waterproof shell is provided with a first annular protrusion, the end cover is provided with a second annular protrusion, the end cover is sealingly connected to the end of the first annular protrusion, the main body of the motor is fixedly installed in the waterproof shell, the main body passes through the waterproof shell and is partially located in the first annular protrusion, the output shaft of the motor passes through the end cover and extends to the outside of the second annular protrusion, and a dynamic sealing structure supporting the rotation of the output shaft is provided in the second annular protrusion.

[0009] Preferably, an annular groove is provided on the end face of the first annular protrusion, a sealing ring is provided in the annular groove, a stud is provided on the outer peripheral side of the first annular protrusion, and an ear plate corresponding to the stud is provided on the circumference of the end cover, the ear plate is mounted on the stud by screws, and the end cover fits and presses the sealing ring.

[0010] Preferably, the dynamic sealing structure comprises an oil seal ring and a bearing sleeved on the output shaft, an inner flange is provided on the inner diameter side of the second annular protrusion, and the oil seal ring is located on a side of the inner flange close to the waterproof shell.

[0011] Preferably, the bearing comprises a first bearing and a second bearing located on both sides of the inner flange, and the oil seal ring is located between the inner flange and the second bearing.

[0012] Preferably, the main body is connected to a mounting frame, and the mounting frame is mounted on the waterproof shell.

[0013] Preferably, the mounting frame is in an "X"-shaped structure, the top of the "X"-shaped structure is mounted on the end of the main body, and two legs of the "X"-shaped structure are mounted on the waterproof shell.

[0014] The utility model also provides a power output module using the motor assembly structure as described above, the waterproof shell includes a shell and a cover body that are sealed and connected, the motor assembly structure is symmetrically arranged on both sides of the shell, the main body of the motor is installed in the waterproof shell, the output shaft of the motor extends out of the shell, and the output shaft extending out of the shell is connected to a transmission wheel.

[0015] Preferably, the motor assembly structure is provided on the cover body, the output shaft of the motor extends out of the cover body, and the output shaft extending out of the cover body is connected with blades.

[0016] Preferably, the main body comprises a reduction box and a motor body, the motor body is dynamically connected to the reduction box, an output end of the reduction box is connected to the output shaft, and the output shaft is eccentrically arranged with respect to the motor body.

[0017] Preferably, the second annular protrusion is eccentrically arranged with respect to the end cover, the end cover is concentrically arranged with respect to the first annular protrusion, and the second annular protrusion is eccentrically arranged with respect to the first annular protrusion.

[0018] Compared with the prior art, the utility model has achieved the following technical effects:

[0019] The utility model is provided with a first annular protrusion on the waterproof shell, and a second annular protrusion on the end cover. After the end cover is connected to the first annular protrusion, the second annular protrusion and the first annular protrusion form a stepped installation structure. The first annular protrusion accommodates the main body of the motor, and the second annular protrusion accommodates the output shaft of the motor. The waterproof sealing structure can be disassembled by disassembling the end cover, thereby forming a waterproof structure that is easy to install and disassemble, thereby improving the convenience of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of a power output module;

[0022] Figure 2 It is a schematic diagram of the motor assembly structure;

[0023] Figure 3 Provide a cross-sectional view of the motor assembly structure;

[0024] Figure 4 is a schematic diagram of the shell;

[0025] Figure 5 Provide a schematic diagram of the mounting frame assembly;

[0026] Figure 6 is a schematic diagram of the end cover;

[0027] Figure 7 is the schematic diagram of the motor;

[0028] Among them, 1. shell; 11. first annular protrusion; 111. annular groove; 12. stud; 2. cover; 3. transmission wheel; 4. blade; 5. end cover; 51. first bearing; 52. oil seal ring; 53. second bearing; 54. second annular protrusion; 541. inner flange; 55. ear plate; 6. motor; 61. motor body; 62. reduction box; 63. output shaft; 7. sealing ring; 8. mounting frame. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] The purpose of the utility model is to provide a motor assembly structure and a power output module thereof to solve the problems existing in the prior art. A first annular protrusion arranged on the waterproof shell is used to accommodate the main body of the motor, and a second annular protrusion arranged on the end cover is used to accommodate the output shaft of the motor. A waterproof structure that is easy to install and disassemble can be formed, thereby improving the convenience of maintenance.

[0031] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0032] like Figures 1 to 7 As shown, the utility model provides a motor assembly structure, including a waterproof shell, an end cover 5 and a motor 6, wherein the waterproof shell has a waterproof function and may include a shell 1 that is separately arranged, and the shell 1 is sealed to form an integral waterproof shell, or may include a shell 1 and a cover 2, and the shell 1 and the cover 2 are sealed to form an integral waterproof shell. The waterproof shell is provided with a first annular protrusion 11, and the first annular protrusion 11 can be located on the shell 1 or on the cover 2. The end cover 5 is provided with a second annular protrusion 54, and the end cover 5 can be sealed and connected to the end of the first annular protrusion 11, that is, the end cover 5 can play the role of a sealing cover, and the position of the first annular protrusion 11 is sealed and waterproofed. After installation, the first annular protrusion 11 and the second annular protrusion 54 form a stepped structure. It should be noted that the first annular protrusion 11 and the second annular protrusion 54 can be in the form of a circular ring, a rectangular ring, etc., and are not specifically circular rings. The motor 6 may include a main body and an output shaft 63. The main body drives the output shaft 63 to rotate to realize power output. Therefore, the main body may only include the motor body 61, or a reduction box 62 may be connected to the output end of the motor body 61. The main body is fixedly installed in the waterproof shell to use the waterproof shell to waterproof the motor body 61. The main body can be installed through a bracket or a mounting frame 8 and can be fixed on the side or bottom of the waterproof shell. The installed main body passes through the waterproof shell and is partially located in the first annular protrusion 11. At the same time, the output shaft 63 of the motor 6 passes through the end cover 5 and extends to the outside of the second annular protrusion 54. After the output shaft 63 is connected to the driven component, the power output is formed. A dynamic sealing structure that supports the rotation of the output shaft 63 is arranged in the second annular protrusion 54. The dynamic sealing structure may include a bearing that supports the rotation of the output shaft 63 and an oil seal that plays a sealing role.

[0033] The utility model is provided with a first annular protrusion 11 on the waterproof shell, and a second annular protrusion 54 is provided on the end cover 5. After the end cover 5 is connected to the first annular protrusion 11, the second annular protrusion 54 and the first annular protrusion 11 form a stepped installation structure, the first annular protrusion 11 accommodates the main body of the motor 6, and the second annular protrusion 54 accommodates the output shaft 63 of the motor 6. The waterproof sealing structure can be disassembled by disassembling the end cover 5, thereby forming a waterproof structure that is easy to install and disassemble, thereby improving the convenience of maintenance.

[0034] The end surface of the first annular protrusion 11 may be provided with an annular groove 111, and a sealing ring 7 is provided in the annular groove 111. After the end cover 5 is fitted and pressed against the sealing ring 7, a sealed connection between the end cover 5 and the first annular protrusion 11 can be achieved. Further, in order to ensure the firmness of the installation and the reliability of the seal, a stud 12 may be provided on the outer peripheral side of the first annular protrusion 11. The stud 12 is evenly distributed along the circumference of the first annular protrusion 11. The end cover 5 is provided with an ear plate 55 corresponding to the stud 12 in the circumference. The ear plate 55 is installed on the stud 12 by screws. By tightening the screws, a compressed connection between the end cover 5 and the first annular protrusion 11 can be achieved.

[0035] Combination Figure 3 As shown, the dynamic sealing structure may include an oil seal ring 52 and a bearing sleeved on the output shaft 63. The inner diameter side and the outer diameter side of the oil seal ring 52 are respectively fitted with the output shaft 63 and the second annular protrusion 54. After applying lubricating oil, a rotation seal is achieved. The cross section of the oil seal ring 52 may be U-shaped, which is convenient for maintaining a fitting seal with the output shaft 63 and the second annular protrusion 54. The inner diameter side of the second annular protrusion 54 may also be provided with an inner flange 541. The oil seal ring 52 is located on the side of the inner flange 541 close to the waterproof shell. Therefore, the inner flange 541 can block the external water to a certain extent, better prevent the external water from penetrating the oil seal ring 52, and improve the waterproof sealing effect.

[0036] Furthermore, the bearing may include a first bearing 51 and a second bearing 53 located on both sides of the inner flange 541, and the oil seal ring 52 is located between the inner flange 541 and the second bearing 53. The first bearing 51 and the second bearing 53 are arranged at an interval, which can provide stable support for the output shaft 63. When the output shaft 63 is subjected to a large bending moment, it can also maintain stable rotation. At the same time, the oil seal ring 52 is clamped between the two bearings, which can effectively reduce the wear of the oil seal ring 52 when subjected to unstable bending moment.

[0037] Combination Figure 3 and Figure 5 As shown, the main body of the motor 6 is connected with a mounting frame 8, and the mounting frame 8 is mounted on the waterproof housing to achieve stable support and fixation of the motor 6. The mounting frame 8 can be connected to the outer periphery of the main body, and can also be connected to the end surface of the main body.

[0038] like Figure 5As shown, in a more preferred solution, the mounting frame 8 may be an “X”-shaped structure, the top of the “X”-shaped structure is mounted on the end of the main body, screw holes are provided on the main body, the “X”-shaped structure is mounted on the main body by screws, screw holes are provided at corresponding positions of the waterproof shell, and the two legs of the “X”-shaped structure can be mounted on the waterproof shell by screws.

[0039] like Figures 1 to 7 As shown, the utility model also provides a power output module using the motor assembly structure as described above, the waterproof housing includes a housing 1 and a cover 2 that are sealed and connected, and the motor assembly structure can be arranged on the housing 1, or on the cover 2, or on both the housing 1 and the cover 2. When the motor assembly structure is arranged on the housing 1, it can be symmetrically arranged on both sides of the housing 1, the main body of the motor 6 is installed in the waterproof housing, and the output shaft 63 of the motor 6 extends out of the housing 1. The output shaft 63 extending out of the housing 1 is connected to a transmission wheel 3, which can be a gear or a pulley for outputting the power of the motor 6. The symmetrical arrangement of the motor assembly structure allows power output to be performed on both sides of the housing 1, and can provide power for the walking component, the cleaning component, etc.

[0040] Combination Figure 1 As shown, in the specific implementation process, a motor assembly structure can also be provided on the cover body 2, and at this time, the output shaft 63 of the motor 6 extends out of the cover body 2, and the output shaft 63 extending out of the cover body 2 can be connected to the blade 4. When the power output module is applied to the pool cleaning robot, the blade 4 can be used as the power of the water flow for cleaning or walking.

[0041] like Figure 7 As shown, the main body of the motor 6 includes a reduction box 62 and a motor body 61, the motor body 61 is connected to the reduction box 62 by power, the output end of the reduction box 62 is connected to the output shaft 63, and the output shaft 63 is eccentrically arranged with the motor body 61. The eccentric arrangement of the output shaft 63 can provide a suitable space for the installation position of the motor body 61, and can also reasonably arrange the position of the output shaft 63 relative to the housing 1 to meet the requirements of the power demand components.

[0042] The second annular protrusion 54 is eccentrically arranged with respect to the end cover 5 , and the end cover 5 is concentrically arranged with respect to the first annular protrusion 11 . Thus, the second annular protrusion 54 is eccentrically arranged with respect to the first annular protrusion 11 , providing a suitable mounting structure for the eccentric motor 6 .

[0043] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A motor assembly structure, characterized in that: It includes a waterproof shell, an end cover and a motor. The waterproof shell is provided with a first annular protrusion, the end cover is provided with a second annular protrusion, the end cover is sealed and connected to the end of the first annular protrusion, the main body of the motor is fixedly installed in the waterproof shell, the main body passes through the waterproof shell and is partially located in the first annular protrusion, the output shaft of the motor passes through the end cover and extends to the outside of the second annular protrusion, and a dynamic sealing structure that supports the rotation of the output shaft is provided in the second annular protrusion.

2. The motor assembly structure according to claim 1, characterized in that: An annular groove is provided on the end face of the first annular protrusion, a sealing ring is provided in the annular groove, a stud is provided on the outer peripheral side of the first annular protrusion, and an ear plate corresponding to the stud is provided on the circumference of the end cover, the ear plate is mounted on the stud by screws, and the end cover fits and presses the sealing ring.

3. The motor assembly structure according to claim 1, characterized in that: The dynamic sealing structure includes an oil seal ring and a bearing sleeved on the output shaft. An inner flange is provided on the inner diameter side of the second annular protrusion. The oil seal ring is located on a side of the inner flange close to the waterproof shell.

4. The motor assembly structure according to claim 3, characterized in that: The bearing includes a first bearing and a second bearing located on both sides of the inner flange, and the oil seal ring is located between the inner flange and the second bearing.

5. The motor assembly structure according to claim 1, characterized in that: The main body is connected with a mounting frame, and the mounting frame is mounted on the waterproof shell.

6. The motor assembly structure according to claim 5, characterized in that: The mounting frame is in an "X"-shaped structure, the top of the "X"-shaped structure is mounted on the end of the main body, and the two legs of the "X"-shaped structure are mounted on the waterproof shell.

7. A power output module using the motor assembly structure according to any one of claims 1 to 6, characterized in that: The waterproof housing includes a sealed shell and a cover. The motor assembly structure is symmetrically arranged on both sides of the shell. The main body of the motor is installed in the waterproof housing. The output shaft of the motor extends out of the shell. The output shaft extending out of the shell is connected to a transmission wheel.

8. The power take-off module according to claim 7, characterized in that: The motor assembly structure is provided on the cover body, the output shaft of the motor extends out of the cover body, and the output shaft extending out of the cover body is connected with blades.

9. The power take-off module according to claim 7, characterized in that: The main body includes a reduction box and a motor body. The motor body is dynamically connected to the reduction box. The output end of the reduction box is connected to the output shaft. The output shaft is eccentrically arranged with respect to the motor body.

10. The power take-off module according to claim 9, characterized in that: The second annular protrusion is eccentrically arranged with respect to the end cover, the end cover is concentrically arranged with respect to the first annular protrusion, and the second annular protrusion is eccentrically arranged with respect to the first annular protrusion.

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