A drive assembly and pool cleaning apparatus
By using an elastic component to connect the outer rotor and stator in the drive assembly of the automatic water tank cleaning equipment, the problem of inconvenient foreign object removal is solved, and the convenience of simplified disassembly and maintenance is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-31
AI Technical Summary
Foreign objects, such as hair, can easily accumulate in the drive components of automatic pool cleaning equipment, making cleaning difficult. Furthermore, the disassembly and assembly process requires tools, which is inconvenient.
The outer rotor is pluggable to the stator by using an elastic member. The outer rotor 112 is pluggable to the stator 111 by the elastic member 113. The outer rotor 112 is engaged with the elastic member 113 by the rotating shaft 114 to prevent it from falling off and to facilitate disassembly and maintenance.
It enables pluggable connection between the outer rotor and the stator, simplifies the disassembly process, avoids the inconvenience of cleaning foreign objects, and improves the convenience of operation and maintainability.
Smart Images
Figure CN224068434U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of pool cleaning technology, and in particular to a drive component and an automatic pool cleaning device. Background Technology
[0002] When the automatic water tank cleaning equipment is running, foreign objects such as hair can easily accumulate in the drive component, making it difficult to clean. Disassembly tools are required to remove these foreign objects, which is inconvenient for users. Utility Model Content
[0003] The summary of this application introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This summary is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.
[0004] This application provides a drive assembly for an automatic water tank cleaning device. The drive assembly includes a motor and a paddle. The motor drives the paddle to provide power to the automatic water tank cleaning device. The motor includes a cooperating stator and an outer rotor. The motor also includes an elastic member. The outer rotor is pluggably connected to the stator through the elastic member.
[0005] According to this application, a drive assembly is used in an automatic water tank cleaning device. The drive assembly includes a motor and blades. The motor drives the blades to provide power to the automatic water tank cleaning device. The motor includes a cooperating stator and an outer rotor, and also includes an elastic member. The outer rotor is pluggably connected to the stator through the elastic member. In this way, the elastic member allows the outer rotor and stator to be pluggably connected. In case of failure or maintenance, the outer rotor can be pulled out of the stator, making operation simple and convenient. The elastic member also prevents the outer rotor from moving away from the stator, thus preventing the outer rotor from falling off the stator during normal use.
[0006] Optionally, the motor further includes a rotating shaft, one end of which is fixedly connected to the outer rotor, and the other end of which passes through the stator and engages with the elastic member.
[0007] Optionally, the other end of the shaft includes a protrusion, and the elastic member includes a hole, wherein the maximum outer diameter of the protrusion is greater than the minimum inner diameter of the hole.
[0008] Optionally, the elastic member includes a large portion and a small portion connected by the hole, the small portion being closer to the protrusion than the large portion, and the large portion being used for assembly positioning.
[0009] Optionally, the shaft further includes a large-diameter portion and a small-diameter portion, the small-diameter portion being located between the protrusion and the large-diameter portion, and the small-diameter portion being located in the hole of the elastic member.
[0010] Optionally, the maximum outer diameter of the protrusion is greater than the outer diameter of the smaller diameter portion.
[0011] Optionally, the outer diameter of the smaller diameter portion is smaller than the minimum inner diameter of the hole.
[0012] Optionally, the rotating shaft can move relative to the elastic member along the axial direction of the rotating shaft.
[0013] Optionally, the blades are integrally formed on the outer rotor.
[0014] This application also provides an automatic water tank cleaning device, which includes the aforementioned drive components.
[0015] According to the automatic water tank cleaning device of this application, the automatic water tank cleaning device includes the aforementioned drive assembly, which includes a motor and a paddle. The motor drives the paddle to provide power to the automatic water tank cleaning device. The motor includes a cooperating stator and an outer rotor, and also includes an elastic member. The outer rotor is pluggably connected to the stator through the elastic member. In this way, the elastic member allows the outer rotor and the stator to be pluggably connected together. In case of failure or maintenance, the outer rotor can be pulled out from the stator, making operation simple and convenient. The elastic member can also prevent the outer rotor from moving away from the stator, preventing the outer rotor from falling off the stator during normal use. Attached Figure Description
[0016] The following figures are included as part of this application for understanding the application. The figures illustrate embodiments of the application and their descriptions, explaining the apparatus and principles of the application. In the figures,
[0017] Figure 1 This is a perspective view of a driving component according to a preferred embodiment of the present application;
[0018] Figure 2 for Figure 1 An exploded view of the drive component shown;
[0019] Figure 3 for Figure 1 Another perspective view of the drive assembly is shown, in which part of the housing of the drive assembly is omitted;
[0020] Figure 4 for Figure 1 A front view of the driving component shown;
[0021] Figure 5For along Figure 4 A schematic diagram of the cross-section intercepted by line AA in the diagram;
[0022] Figure 6 for Figure 4 A cross-sectional schematic diagram of the outer rotor of the drive assembly;
[0023] Explanation of reference numerals in the attached figures:
[0024] 100: Drive assembly; 110: Motor
[0025] 111: Stator; 112: External Rotor
[0026] 113: Elastic component; 114: Rotating shaft
[0027] 115: Protrusion 116: Hole
[0028] 117: Large Size Section 118: Small Size Section
[0029] 119: Large diameter part 120: Small diameter part
[0030] 121: First end 122: Second end
[0031] 123: Stator coil; 124: Positioning hole
[0032] 125: Casing 130: Propeller Blade Detailed Implementation
[0033] The following description provides numerous specific details to offer a more thorough understanding of this application. However, it will be apparent to those skilled in the art that this application can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described to avoid confusion with this application.
[0034] To fully understand this application, detailed portions will be set forth in the following description in order to illustrate it. Obviously, implementation of this application is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of this application are described in detail below; however, other embodiments may exist besides these detailed descriptions, and should not be construed as being limited to the embodiments set forth herein.
[0035] It should be understood that the terminology used herein is intended only to describe particular embodiments and is not intended to limit the scope of this application. The singular forms “a,” “an,” and “the” are also intended to include the plural forms unless the context clearly indicates otherwise. When the terms “comprising” and / or “including” are used in this specification, they indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof. The terms “upper,” “lower,” “front,” “rear,” “left,” “right,” and similar expressions used in this application are for illustrative purposes only and are not intended to be limiting.
[0036] The ordinal numbers such as "first" and "second" used in this application are merely identifiers and have no other meaning, such as a specific order. In this application, unless otherwise expressly specified and limited, "above" or "below" a 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 a 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" of a 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.
[0037] The specific embodiments of this application will be described in more detail below with reference to the accompanying drawings, which illustrate representative embodiments of this application and are not intended to limit this application.
[0038] like Figure 1 As shown, this application provides a drive assembly 100 for an automatic pool cleaning device. The drive assembly 100 is capable of providing driving force to the automatic pool cleaning device.
[0039] The drive assembly 100 includes a motor 110 and a blade 130, with the motor 110 connected to the blade 130. The blade 130 is sleeved on the outside of the motor 110 and connected to the outer surface of the motor 110. The motor 110 provides power to the drive assembly 100. The motor 110 converts electrical energy into mechanical energy, causing at least a portion of the motor 110 to rotate. At least a portion of the motor 110 drives the blade 130 to rotate. The blade 130 rotates along the axial direction of the motor 110. The motor 110 drives the blade 130 to provide power to the automatic pool cleaning device. The blade 130 interacts with an external water source to generate a driving force, thereby causing the automatic pool cleaning device to move on the water surface.
[0040] like Figure 2 As shown, the motor 110 includes a mating stator 111 and an outer rotor 112, which are pluggably connected together. The stator 111 and the outer rotor 112 are arranged coaxially. The motor 110 also includes a rotating shaft 114, which is connected to the outer rotor 112. The outer rotor 112 is sleeved on the outside of the stator 111, and the rotating shaft 114 is inserted into the stator 111. The stator 111 and the outer rotor 112 are pluggably connected along the axial direction of the motor 110.
[0041] The stator 111 can generate a magnetic field under the action of an electric current. The magnetic field generated by the stator 111 can act on the outer rotor 112, causing the outer rotor 112 to rotate. The outer rotor 112 rotates relative to the stator 111 in the circumferential direction of the motor 110.
[0042] The stator 111 and the outer rotor 112 cooperate with each other. The stator 111 also includes a stator coil 123, which is arranged around the stator 111. The stator coil 123 is disposed on the outer surface of the stator 111. When current is passed through the stator coil 123, the stator coil 123 can generate a magnetic field. Optionally, the outer rotor 112 is provided with a magnetic component, which is located inside the outer rotor 112. The magnetic field generated by the stator coil 123 interacts with the magnetic component, thereby causing the outer rotor 112 to rotate.
[0043] The magnetic component is installed on the outer rotor 112 using a grouting sealing method. Grouting sealing primarily utilizes the filling properties of the grouting material to achieve a seal. The grouting material is typically a liquid substance with good flowability. During the sealing operation, the grouting material is injected into a specific area of the outer rotor 112, surrounding the magnetic component. Once the grouting material has cured, it fills the gap between the magnetic component and the outer rotor 112 housing, forming a continuous sealing layer that prevents external liquids, gases, or impurities from entering the area where the magnetic component is located. The magnetic component protects the outer rotor 112 from environmental factors, improving the performance and reliability of the motor 110. Grouting materials include epoxy resin, polyurethane, silicone rubber, anaerobic adhesive, etc. In this embodiment, the grouting material includes, but is not limited to, the above-mentioned materials; any grouting material capable of performing grouting sealing is considered a suitable material.
[0044] Grouting is performed after the stator coil 123 has been grouted and sealed. The grouting and sealing method for the stator coil 123 is similar to the grouting and sealing method described above, and will not be repeated here. Grouting after grouting and sealing can protect the stator coil 123, enhance mechanical stability, fix the position of the stator coil 123, and prevent it from shifting during the operation of the motor 110. At the same time, it can avoid damage to the coil or friction with the iron core caused by the rotation of the stator 111, reducing the probability of failure.
[0045] The outer rotor 112 is connected to the blade 130. The blade 130 is sleeved on the outside of the outer rotor 112. The blade 130 and the outer rotor 112 are connected together along the outer surface of the outer rotor 112 in the radial direction. Optionally, the blade 130 can be integrally formed with the outer rotor 112. The blade 130 is integrally formed on the outer rotor 112. The outer rotor 112 can drive the blade 130 to rotate. When the blade 130 is integrally formed on the outer rotor 112, the connecting parts and transmission mechanism are omitted, making the power transmission path more direct and shorter, and reducing the risk of failure.
[0046] The outer rotor 112 drives the blade 130 to rotate. The outer rotor 112 and the blade 130 are coaxially connected. The blade 130 rotates about the axial direction of the motor 110. The magnetic field generated by the stator 111 drives the outer rotor 112 to rotate, thereby driving the blade 130 to rotate. The outer rotor 112 drives the blade 130 and is pluggably connected to the stator 111. The operator can directly hold the blade 130 to plug and unplug the outer rotor 112. Therefore, the connection between the outer rotor and the stator can be directly inspected and maintained, which is simple and convenient and does not require additional inspection.
[0047] The motor 110 also includes an elastic member 113, which is capable of elastic deformation. The elastic member 113 can be made of plastic or rubber, and can be used for cushioning and shock absorption. The elastic member 113 can be roughly circular. The elastic member 113 can be made of rubber-based elastic members, spring-based elastic members, or other elastic members. Rubber-based elastic members include hollow soft rubber, hard rubber clips, rubber shock-absorbing pads, rubber couplings, rubber bellows, etc. Spring-based elastic members include coil springs, disc springs, leaf springs, etc. Other elastic members may also include elastic putty, air springs, etc. In this embodiment, the elastic member 113 includes, but is not limited to, the above-mentioned materials; the elastic member 113 only needs to be capable of elastic connection.
[0048] As an alternative implementation method, such as Figure 3 As shown, the elastic member 113 is disposed on one side of the stator, and the outer rotor can be pluggably mounted onto the stator from the other side. During assembly, the rotating shaft 114 passes through the stator 111 and then through the elastic member 113. The rotating shaft can pass through the elastic member 113 along the axial direction of the motor 110. Thus, the elastic member 113 and the outer rotor 112 are pluggably connected together. The rotating shaft can pass through the stator 111. The rotating shaft can be plugged into and removed from the stator 111. The outer rotor 112 is pluggably connected to the stator 111 through the elastic member 113.
[0049] During normal operation of the motor, the circumferential direction of the shaft and the elastic member 113 will not come into contact, and the presence of the elastic member 113 will not increase the load. When the outer rotor 112 rotates, the outer rotor 112 does not come into contact with the end of the elastic member 113, thus avoiding an increase in the load on the outer rotor 112. The elastic member 113 can prevent the outer rotor 112 from moving away from the stator 111, preventing the outer rotor 112 from falling out of the stator 111 during normal use. When the outer rotor 112 is inserted into or removed from the stator 111, the elastic member 113 can also provide elastic cushioning for the outer rotor 112, preventing damage to the stator 111 and the outer rotor 112.
[0050] According to the drive assembly 100 of this application, an automatic water tank cleaning device is used. The drive assembly 100 includes a motor 110 and a blade 130. The motor 110 drives the blade 130 to provide power to the automatic water tank cleaning device. The motor 110 includes a cooperating stator 111 and an outer rotor 112. The motor 110 also includes an elastic member 113. The outer rotor 112 is pluggably connected to the stator 111 through the elastic member 113. In this way, the outer rotor 112 and the stator 111 can be pluggably connected together through the elastic member 113. In case of failure or maintenance, the outer rotor 112 can be pulled out from the stator 111, which is simple and convenient to operate. The elastic member 113 can also prevent the outer rotor 112 from moving away from the stator 111, thus preventing the outer rotor 112 from falling off the stator 111 during normal use.
[0051] The motor 110 also includes a housing 125, which supports and protects the motor 110. The housing 125 positions the motor 110, preventing displacement or shaking caused by vibration, impact, or other factors. A portion of the housing 125 is fitted over the stator 111. The outer rotor 112 can be pluggably connected to the housing 125 along the axial direction of the motor 110. The stator 111 is fixed to the housing 125. The stator 111 is fixed inside the housing 125. An elastic member 113 is located within the housing 125. The elastic member 113 is fixed inside the housing 125.
[0052] like Figure 6 As shown, the rotating shaft 114 is located within the housing 125. An elastic member 113 is also provided inside the housing 125. One end of the rotating shaft 114 is fixedly connected to the outer rotor 112, and the other end of the rotating shaft 114 passes through the stator 111 and engages with the elastic member 113. The outer rotor 112 can drive the rotating shaft 114 to rotate. The axial direction of the rotating shaft 114 is parallel to the axial direction of the outer rotor 112. Preferably, the outer rotor 112, the rotating shaft 114, and the stator 111 are coaxially arranged. The outer rotor 112 can rotate about the axial direction of the rotating shaft 114. The outer rotor 112 is pluggably connected to the stator 111 via the rotating shaft 114.
[0053] The rotating shaft 114 includes a first end 121 and a second end 122, which are located on opposite sides of the rotating shaft 114 along its axial direction. The first end 121 is connected to the outer rotor 112 along the axial direction of the rotating shaft 114. The first end 121 is fixedly connected to the outer rotor 112. Preferably, the first end 121 is inserted into the center of the outer rotor 112. Optionally, the rotating shaft 114 can be integrally formed with the outer rotor 112.
[0054] Furthermore, the rotating shaft 114 can penetrate the stator 111. A positioning hole 124 is provided inside the stator 111. The positioning hole 124 penetrates the stator 111 along its axial direction. The rotating shaft 114 can be inserted into the positioning hole 124. The axial direction of the stator 111 is parallel to the axial direction of the rotating shaft 114. The rotating shaft 114 passes through the positioning hole 124. Bearings are provided at both ends of the positioning hole 124. The bearings are located between the positioning hole 124 and the rotating shaft 114. The bearings can provide buffer protection for the outer rotor 112, reduce friction, absorb the impact force caused by the rotation of the outer rotor 112, and avoid damage caused by displacement or shaking due to the rotation of the outer rotor 112.
[0055] The second end 122 can engage with the elastic member 113. The second end 122 can pass through the stator 111 and engage with the elastic member 113. The second end 122 of the rotating shaft 114 can be inserted into the elastic member 113. Further, the rotating shaft 114 can pass through the elastic member 113. The elastic member 113 includes a hole 116, which passes through the elastic member 113. Preferably, the hole 116 is located at the center of the elastic member 113 along the radial direction. The rotating shaft 114 can pass through the hole 116 into the elastic member 113. The hole 116 passes through the elastic member 113 along the axial direction of the rotating shaft 114.
[0056] like Figure 4 and Figure 5 As shown, the other end (second end 122) of the rotating shaft 114 includes a protrusion 115 located at the end of the second end 122. The protrusion 115 protrudes outward along the radial direction of the rotating shaft 114. The maximum outer diameter of the protrusion 115 along the radial direction of the rotating shaft 114 is greater than the minimum inner diameter of the hole 116. The protrusion 115 can abut against the elastic member 113. During normal operation, the protrusion 115 can abut against the elastic member 113, and the rotating shaft 114 can prevent the outer rotor 112 from disengaging from the stator 111 by means of the protrusion 115.
[0057] The elastic member 113 also includes a large-size portion 117 and a small-size portion 118, which are connected by a hole 116. Optionally, the large-size portion 117 may be integrally formed with the small-size portion 118. The large-size portion 117 protrudes from the small-size portion 118 in the radial direction of the elastic member 113. The minimum outer diameter of the large-size portion 117 in the radial direction of the elastic member 113 is greater than the maximum outer diameter of the small-size portion 118 in the radial direction of the elastic member 113. The large-size portion 117 and the small-size portion 118 are connected in the axial direction of the elastic member 113. The small-size portion 118 is closer to the protrusion 115 than the large-size portion 117.
[0058] The hole 116 of the elastic member 113 passes through the large-size portion 117 and the small-size portion 118. The maximum outer diameter of the protrusion 115 is larger than the outer diameter of the small-size portion 118. In use, the small-size portion 118 can abut against the protrusion 115, and the small-size portion 118 can prevent the protrusion 115 from detaching from the elastic member, thus preventing the outer rotor 112 from falling off.
[0059] The large-size portion 117 is used for assembly positioning. The large-size portion 117 is fixed to the stator 111 or the housing 125. The minimum inner diameter of the hole in the large-size portion 117 is greater than the maximum outer diameter of the protrusion 115. Thus, during the insertion of the elastic member 113 into the rotating shaft 114, the hole in the large-size portion 117 guides the protrusion 115. Furthermore, the elastic member 113 can undergo elastic deformation. During installation, the protrusion 115 contacts the small-size portion 118, causing the small-size portion 118 to undergo elastic deformation, allowing the protrusion 115 to pass through the hole in the small-size portion 118. The protrusion 115 protrudes from the small-size portion 118 in the axial direction of the rotating shaft 114, away from the outer rotor 112, ensuring that the protrusion 115 is located on one side of the small-size portion 118. The small-size portion 118 prevents the protrusion 115 from moving to the other side, thus preventing the outer rotor 112 from falling off.
[0060] Correspondingly, the rotating shaft 114 also includes a large-diameter portion 119 and a small-diameter portion 120, which are connected along the axial direction of the rotating shaft 114. The small-diameter portion 120 is closer to the protrusion 115 than the large-diameter portion 119. The large-diameter portion 119 is fixedly connected to the outer rotor 112. The large-diameter portion 119 is pluggably connected to the stator 111.
[0061] The outer diameter of the large-diameter portion 119 is smaller than the inner diameter of the positioning hole 124. The outer diameter of the large-diameter portion 119 is larger than the outer diameter of the small-diameter portion 120. The small-diameter portion 120 is located between the protrusion 115 and the large-diameter portion 119. The protrusion 115 is connected to the large-diameter portion 119 through the small-diameter portion 120. The outer diameter of the protrusion 115 is larger than the outer diameter of the small-diameter portion 120. The large-diameter portion 119 is located in the positioning hole 124 of the stator 111.
[0062] The small-diameter portion 120 is located within the hole 116 of the elastic member 113. The outer diameter of the small-diameter portion 120 is smaller than the minimum inner diameter of the hole 116. Thus, the elastic member 113 is fitted over the small-diameter portion 120. The outer diameter of the small-diameter portion 120 is smaller than the minimum inner diameter of the hole 116 of the elastic member 113. The outer diameter of the small-diameter portion 120 is smaller than the minimum inner diameter of the hole 116 of the large-size portion 117. The outer diameter of the small-diameter portion 120 is smaller than the minimum inner diameter of the hole 116 of the small-size portion 118.
[0063] The outer rotor 112 can rotate and move relative to the stator 111. The outer rotor 112 rotates about the axial direction of the shaft 114. The outer rotor 112 can also move linearly relative to the stator 111. The outer rotor 112 can be plugged into and detached from the stator 111. The outer rotor 112 can be pulled out of the stator 111 along the axial direction of the shaft 114 towards the outside of the motor 110. Alternatively, the outer rotor 112 can be inserted into the motor 110 along the axial direction of the shaft 114 towards the inside of the motor 110.
[0064] The protrusion 115 and the elastic member 113 are spaced apart. A gap exists between the protrusion 115 and the elastic member 113. This gap provides space for the outer rotor 112 to move. This allows the outer rotor 112 to move relative to the stator 111 along the axial direction of the shaft 114. The shaft 114 can move relative to the elastic member 113 along the axial direction of the shaft 114. The outer diameter of the protrusion 115 is slightly larger than the inner diameter of the elastic member 113. During the insertion and removal of the outer rotor 112, the protrusion 115 and the elastic member 113 contact each other, generating resistance and preventing the outer rotor 112 from falling off during normal use. When the shaft 114 moves outward along its axial direction, the protrusion 115 abuts against the elastic member 113, thereby preventing the outer rotor 112 from disengaging from the stator 111.
[0065] In this way, when the drive assembly 100 malfunctions due to salt crystallization, hair entanglement, or other problems, the user can easily disassemble the propeller 130 by hand for cleaning. When the drive assembly 100 is in normal use, the propeller will not easily fall off due to machine impacts or other actions.
[0066] This application also provides an automatic water tank cleaning device, which includes the aforementioned drive components.
[0067] According to the automatic water tank cleaning device of this application, the automatic water tank cleaning device includes the aforementioned drive assembly. The drive assembly 100 includes a motor 110 and a blade 130. The motor 110 drives the blade 130 to provide power to the automatic water tank cleaning device. The motor 110 includes a cooperating stator 111 and an outer rotor 112. The motor 110 also includes an elastic member 113. The outer rotor 112 is pluggably connected to the stator 111 through the elastic member 113. In this way, the outer rotor 112 and the stator 111 can be pluggably connected together through the elastic member 113. In case of failure or maintenance, the outer rotor 112 can be pulled out from the stator 111, which is simple and convenient to operate. The elastic member 113 can also prevent the outer rotor 112 from moving away from the stator 111, thus preventing the outer rotor 112 from falling off the stator 111 during normal use.
[0068] The automatic pool cleaning device includes a drive assembly 100. The drive assembly 100 drives the automatic pool cleaning device to move. During normal use, the drive assembly 100 prevents the blades from easily falling off due to machine impacts or other movements. During operation, the outer rotor 112 and stator 111 can be disassembled for cleaning. For example, if the drive assembly 100 experiences malfunctions such as salt crystallization or hair entanglement, the user can manually disassemble the blades 130 for easy cleaning.
[0069] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of this application. Terms such as “part” or “component” appearing herein can refer to a single part or a combination of multiple parts. Terms such as “installation” or “installation” appearing herein can refer to one component being directly attached to another component or one component being attached to another component via an intermediary. A feature described in one embodiment herein may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.
[0070] This application has been described through the above embodiments; however, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit this application to the described embodiments. Furthermore, those skilled in the art will understand that this application is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of this application, all of which fall within the scope of protection claimed in this application. The scope of protection of this application is defined by the appended claims and their equivalents.
Claims
1. A drive assembly (100) for an automatic pool cleaning device, the drive assembly (100) comprising a motor (110) and a paddle (130), the motor (110) driving the paddle (130) to power the automatic pool cleaning device, the motor (110) comprising a stator (111) and an outer rotor (112) in cooperation, characterized in that, The motor (110) further comprises an elastic member (113), the outer rotor (112) and the stator (111) are pluggably connected together through the elastic member (113).
2. The drive assembly (100) according to claim 1, characterized in that The motor (110) further comprises a rotating shaft (114), one end of the rotating shaft (114) is fixedly connected to the outer rotor (112), the other end of the rotating shaft (114) passes through the stator (111) and is clamped with the elastic member (113).
3. The drive assembly (100) according to claim 2, characterized in that The other end of the rotating shaft (114) comprises a protrusion (115), the elastic member (113) comprises a hole (116), the maximum outer diameter of the protrusion (115) is greater than the minimum inner diameter of the hole (116).
4. The drive assembly (100) according to claim 3, characterized in that The elastic member (113) comprises a large-size part (117) and a small-size part (118) which are communicated by the hole (116), the small-size part (118) is closer to the protrusion (115) than the large-size part (117), and the large-size part (117) is used for assembly positioning.
5. The drive assembly (100) according to claim 3, characterized in that The rotating shaft (114) further comprises a large-diameter part (119) and a small-diameter part (120), the small-diameter part (120) is located between the protrusion (115) and the large-diameter part (119), and the small-diameter part (120) is located in the hole (116) of the elastic member (113).
6. The drive assembly (100) according to claim 5, characterized in that The maximum outer diameter of the protrusion (115) is greater than the outer diameter of the small-diameter part (120).
7. The drive assembly (100) according to claim 5, characterized in that The outer diameter of the small-diameter part (120) is less than the minimum inner diameter of the hole (116).
8. The drive assembly (100) according to claim 3, characterized in that The rotating shaft (114) is movable relative to the elastic member (113) along the axial direction of the rotating shaft (114).
9. The drive assembly (100) according to any one of claims 1-8, characterized in that, The paddle (130) is integrally formed on the outer rotor (112).
10. An automatic water tank cleaning device, characterized in that, The pool automatic cleaning device comprises the driving assembly (100) according to any one of claims 1-9.