Power device and ground cleaning equipment

Abstract

The invention discloses a power device and ground cleaning equipment, the power device comprises a shell, motors and elastic connecting pieces, the motors are arranged in the shell at intervals, the elastic connecting pieces are arranged between the shell and the motors, and the motors and the shell are arranged at intervals through the elastic connecting pieces. According to the power device and the floor cleaning equipment with the power device, the motor and the shell are arranged in a spaced mode through the elastic connecting piece made of the elastic material, the motor cannot make contact with the shell, and therefore only a small part of vibration of the motor can be transmitted out through the shell, and noise generated by the motor is effectively reduced; in addition, as the motor and the shell cannot be in direct contact, the gap between the shell and the motor forms a noise reduction area, transmission of noise generated by the motor is further avoided, and the use experience of a user is effectively improved.

Description

Technical Field

[0001] This application relates to the technical field of cleaning equipment, and more particularly, to a power device and a floor cleaning equipment. Background Art

[0002] In recent years, floor cleaning equipment such as vacuum cleaners has generally become a daily cleaning tool in today's families. The impeller of the vacuum cleaner forms a pressure difference inside the equipment under the drive of the motor, so that dust and dirt are sucked into the dust bin along with the air. However, due to the limitation of the process level of the current dynamic balance correction of the motor, the base frequency noise of the motor is inevitable; at the same time, affected by the machining process accuracy, it is difficult to ensure whether the two bearings are completely concentric or whether the rotating plane of the dynamic impeller is completely perpendicular to the rotating shaft, resulting in the inability to effectively suppress the double-frequency noise of the motor. Summary of the Invention

[0003] Embodiments of this application provide a power device and a floor cleaning equipment having the device.

[0004] A power device according to an embodiment of this application includes:

[0005] A housing;

[0006] A motor, the motor being spaced apart and disposed inside the housing;

[0007] An elastic connector, disposed between the housing and the motor, and the motor is spaced apart from the housing through the elastic connector.

[0008] In some embodiments, the elastic connector includes a first elastic connector and a second elastic connector located at opposite ends of the motor, and the motor is connected to the housing through the first elastic connector and the second elastic connector respectively.

[0009] In some embodiments, the housing further includes:

[0010] A perforated cover, the perforated cover being sleeved on the outer periphery of the motor.

[0011] In some embodiments, the perforated cover includes an inner perforated cover and an outer perforated cover nested with each other.

[0012] In some embodiments, the inner perforated cover includes a cover body and a fixing plate disposed on the outer wall of the cover body. A first support portion is provided at the connection between the cover body and the fixing plate. The first support portion has a support surface, and the support surface abuts against the inner wall surface of the outer perforated cover. A second support portion is provided at one end of the outer perforated cover away from the first support portion, and the second support portion abuts against the outer wall surface of the cover body, so that the inner perforated cover and the outer perforated cover are spaced apart.

[0013] In some embodiments, a limiting protrusion is provided on the first support portion, and the outer perforated cover includes a limiting groove, and the limiting protrusion and the limiting groove cooperate with each other.

[0014] In some embodiments, the elastic connecting member further includes:

[0015] A third elastic connecting member, which is sleeved on the perforated cover and elastically abuts against the housing.

[0016] In some embodiments, the third elastic connecting member includes a sealing portion and an embedding portion. The sealing portion covers the housing to seal the housing, and the embedding portion embeds into the housing from the sealing portion.

[0017] In some embodiments, the first elastic connecting member includes:

[0018] An elastic connecting portion;

[0019] A bracket, which is detachably connected to the elastic connecting portion, and the elastic connecting portion is connected to the motor through the bracket.

[0020] In some embodiments, the bracket includes a buckle, and an avoidance space is formed on the motor. The buckle cooperates with the avoidance space to limit the first elastic connecting member.

[0021] In some embodiments, the motor includes a motor body and a motor cover covering the motor body. At least a part of the second elastic connecting member is embedded in the motor cover and connected to the housing.

[0022] A floor cleaning device according to another embodiment of the present application includes a power device as described in any one of the above claims.

[0023] A power device and a floor cleaning device having the same proposed by the embodiment of the present application space the motor and the housing by an elastic connecting member made of an elastic material, so that the motor and the housing cannot be in contact. The vibration generated by the motor can only be transmitted to the housing through the elastic connecting member. However, since the elastic connecting members are all made of elastic materials and have a certain absorption effect on vibration, only a very small part of the vibration of the motor can be transmitted out through the housing, thereby effectively reducing the noise generated by the motor. In addition, since the motor and the housing cannot be in direct contact, the gap between the housing and the motor forms a sound absorption area, further avoiding the transmission of the noise generated by the motor and effectively improving the user experience.

[0024] Additional aspects and advantages of the embodiments of the present application will be given in part in the following description, will become apparent in part from the following description, or will be understood through the practice of the embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, where:

[0026] Figure 1 is a schematic internal structure diagram of a power device according to an embodiment of the present application;

[0027] Figure 2 is a schematic structural diagram of a perforated cover according to an embodiment of the present application;

[0028] Figure 3 is a schematic structural diagram of a first elastic connecting member and a bracket according to an embodiment of the present application;

[0029] Figure 4 is a schematic structural diagram of a motor cover, a second elastic connecting member, and a module rear cover according to an embodiment of the present application.

[0030] Main element symbol description: Power device 100, housing 10, inner perforated cover 11, first clamping portion 111, limiting protrusion 112, fixing plate 113, cover body 114, first supporting portion 115, outer perforated cover 12, second clamping portion 121, limiting groove 122, second supporting portion 123, module rear cover 13, second mounting hole 131, motor 20, motor cover 21, first mounting hole 211, elastic connecting member 30, first elastic connecting member 31, bracket 311, mounting portion 3111, buckle 3112, elastic connecting portion 312, ear hole 3121, second elastic connecting member 32, first limiting boss 321, second limiting boss 322, third elastic connecting member 33, sealing portion 331, embedding portion 332. Detailed embodiments

[0031] The following further describes the embodiments of the present application in conjunction with the drawings. The same or similar reference numerals in the drawings denote the same or similar elements or elements having the same or similar functions throughout.

[0032] In addition, the embodiments of the present application described below in conjunction with the drawings are exemplary and are only used to explain the embodiments of the present application and should not be construed as a limitation of the present application.

[0033] In the present application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0034] The motor noise includes vibration noises such as fundamental frequency and double frequency, and aerodynamic noise caused by high-speed air flow. Due to the limitation of the current process level in dynamic balance correction of the motor, it is difficult to avoid the fundamental frequency noise of the motor; at the same time, affected by the machining process accuracy, it is difficult to ensure whether the two bearings are completely concentric or whether the rotating plane of the dynamic impeller is completely perpendicular to the rotating shaft, resulting in the inability to effectively suppress the double frequency noise of the motor.

[0035] In the related art, usually, an anti-vibration pad is set between the motor and the whole machine to reduce the vibration noise. This method is simple, but it is still difficult to effectively reduce the fundamental frequency noise and double frequency noise under some working conditions. Especially for products with a very thin outer shell of the whole machine, the vibration noise will directly affect the user experience.

[0036] In view of this, please refer to Figures 1 to 4 , this application discloses a floor cleaning device, which includes a power device 100. The power device 100 includes a housing 10, a motor 20, and an elastic connecting member 30.

[0037] The motor 20 is arranged in the housing 10 at intervals, the elastic connecting member 30 is arranged between the housing 10 and the motor 20, and the motor 20 is arranged at intervals from the housing 10 through the elastic connecting member 30.

[0038] The power device 100 proposed in the embodiment of this application and the vacuum cleaner having this device arrange the motor 20 and the housing 10 at intervals through the elastic connecting member 30 made of an elastic material. The motor 20 and the housing 10 cannot be in contact. The vibration generated by the motor 20 can only be transmitted to the housing 10 through the elastic connecting member 30. However, since the elastic connecting members 30 are all made of elastic materials and have a certain absorption effect on vibration, only a very small part of the vibration of the motor 20 can be transmitted out through the housing 10, thereby effectively reducing the noise generated by the motor 20. In addition, since the motor 20 and the housing 10 cannot be directly in contact, the gap between the housing 10 and the motor 20 forms a sound absorption area, further avoiding the transmission of the noise generated by the motor 20 and effectively improving the user experience.

[0039] The floor cleaning device of this embodiment includes, but is not limited to, a floor washer, a vacuum cleaner, etc. Only the vacuum cleaner will be taken as an example for illustration below.

[0040] The elastic connecting member 30 includes a first elastic connecting member 31 and a second elastic connecting member 32 located at opposite ends of the motor 20. The motor 20 is connected to the housing 10 through the first elastic connecting member 31 and the second elastic connecting member 32 respectively.

[0041] The housing 10 can either be separately provided inside the vacuum cleaner for installing the motor 20 or be a part of the outer shell of the vacuum cleaner main body. The housing 10 forms a receiving space. The motor 20 is the core component of the power device 100. The motor 20 is spaced inside the receiving space formed by the housing 10 and is connected to the housing 10 through elastic connectors 30, which is used to form negative pressure inside the vacuum cleaner to suck in dust and the like. Among them, the elastic connectors 30 include a first elastic connector 31 and a second elastic connector 32. Both the first elastic connector 31 and the second elastic connector 32 are made of elastic materials. The elastic materials can be rubber, silica gel, polyurethane, etc. For example, in this embodiment, the materials of the first elastic connector 31 and the second elastic connector 32 can be rubber. The first elastic connector 31 can be used as the vibration isolation base of the motor 20 and is installed at one end of the motor 20. The second elastic connector 32 is a columnar connector and is installed at the other end of the motor 20. The first elastic connector 31 and the second elastic connector 32 are respectively connected to two side walls of the housing 10, so that the motor 20 is suspended inside the space formed by the housing 10. In this way, the vibration generated by the motor 20 can only be transmitted to the housing 10 through air or the elastic connectors 30 at both ends. Since the first elastic connector 31 and the second elastic connector 32 themselves have elasticity, a flexible connection can be formed between the motor 20 and the housing 10 after being connected to the motor 20 and the housing 10. The flexible connection can absorb most of the vibration generated by the motor 20, so that the vibration cannot be transmitted to the housing 10, thereby effectively suppressing the noise generated by the motor 20.

[0042] Please refer to Figure 1 and Figure 2 , in some embodiments, the housing 10 further includes a perforated cover. The perforated cover is sleeved on the outer periphery of the motor 20. The perforated cover includes an inner perforated cover 11 and an outer perforated cover 12 which are nested. The inner perforated cover 11 is located inside the outer perforated cover 12. Specifically, a plurality of heat dissipation holes are provided on both the inner perforated cover 11 and the outer perforated cover 12.

[0043] The inner perforated cover 11 includes a cover body 114 and a fixing plate 113 provided on the outer wall of the cover body 114. A first support portion 115 is provided at the connection between the cover body 114 and the fixing plate 113. The first support portion 115 has a support surface, and the support surface abuts against the inner wall surface of the outer perforated cover. A second support portion 123 is provided at one end of the outer perforated cover 12 away from the first support portion 115. The second support portion 123 abuts against the outer wall surface of the cover body 114, so that the inner perforated cover 11 and the outer perforated cover 12 are spaced apart. Specifically, the fixing plate 113 covers the opening of the housing 10. The spaced arrangement of the inner perforated cover 11 and the outer perforated cover 12 can form a sound absorption area between the inner perforated cover 11 and the outer perforated cover 12, which is beneficial to suppressing the propagation of the noise generated by the motor 20. At the same time, the inner perforated cover 11 and the outer perforated cover 12 also have a certain protective effect on the motor 20.

[0044] In some embodiments, the inner perforated cover 11 and the outer perforated cover 12 are detachably connected. Optionally, the connection manner between the inner perforated cover 11 and the outer perforated cover 12 can be snap connection, mortise and tenon connection, screw connection, etc. The specific connection manner is not limited. For example, please refer to Figure 1 and Figure 2 , in this embodiment, the connection manner between the inner perforated cover 11 and the outer perforated cover 12 is snap connection. Among them, a first clamping portion 111 is provided on the outer surface of the inner perforated cover 11. The number of the first clamping portions 111 is multiple, and the multiple first clamping portions 111 are uniformly arranged on the surface of the inner perforated cover 11 along the circumferential direction. A guiding surface for facilitating locking is further provided on the top of the first clamping portion 111. A second clamping portion 121 that can cooperate with the first clamping portion 111 is provided on the outer perforated cover 12. The second clamping portion 121 can be arranged corresponding to the first clamping portion 111 one by one, or a second clamping portion 121 that is connected end to end in a circular shape is arranged along the circumferential direction, which is convenient for processing. When the outer perforated cover 12 is sleeved on the inner perforated cover 11 along the length direction of the inner perforated cover 11, the guiding surface of the first clamping portion 111 will guide and lift the second clamping portion 121. When the outer perforated cover 12 is installed in place, the second clamping portion 121 will fall back and abut against the other side of the first clamping portion 111 where the guiding surface is not provided, so that the outer perforated cover 12 cannot be easily detached. Such a setting can facilitate the maintenance and replacement of the inner perforated cover 11, the outer perforated cover 12 and the motor 20, reduce the maintenance difficulty and maintenance cost. In other embodiments, the first clamping portion 111 can also be provided on the outer perforated cover 12. At this time, the second clamping portion 121 should be provided on the inner perforated cover 11.

[0045] In some embodiments, a limiting protrusion 112 is provided on the first supporting portion 115, and the outer perforated cover 12 includes a limiting groove 122. The limiting protrusion 112 and the limiting groove 122 cooperate with each other.

[0046] Specifically, a limiting groove 122 is provided at the edge of the outer perforated cover 12 away from the card slot. In this embodiment, the number of the limiting grooves 122 is multiple, and the multiple limiting grooves 122 are evenly arranged along the edge of the outer perforated cover 12. Correspondingly, a limiting protrusion 112 cooperating with the limiting groove 122 is provided on the inner perforated cover 11. The limiting protrusion 112 is arranged at the root of the fixing plate 113. The limiting protrusion 112 can improve the strength of the fixing plate 113 while cooperating with the limiting groove 122, avoiding the fracture of the fixing plate 113. The number of the limiting protrusions 112 is the same as that of the limiting grooves 122, and the limiting protrusions 112 and the limiting grooves 122 are arranged in one-to-one correspondence. For the convenience of the cooperation between the limiting protrusion 112 and the limiting groove 122, a guiding groove is further provided at the opening of the limiting groove 122. With such a setting, it can be avoided that the inner perforated cover 11 and the outer perforated cover 12 rotate relative to each other due to factors such as vibration after installation, causing wear or damage to the inner perforated cover 11 or the outer perforated cover 12, or even causing the detachment of the outer perforated cover 12. In other embodiments, the limiting groove 122 can also be arranged on the inner perforated cover 11, and at this time, the limiting protrusion 112 should be arranged on the outer perforated cover 12.

[0047] Please refer to Figure 1 , in some embodiments, the elastic connecting member 30 further includes a third elastic connecting member 33. The third elastic connecting member 33 is sleeved on the perforated cover and elastically abuts against the housing 10. Specifically, the third elastic connecting member 33 is an isolation sleeve. The isolation sleeve is sleeved on the fixing plate 113 of the inner perforated cover 11. The third elastic connecting member 33 is used to fix the perforated cover. At the same time, because the third elastic connecting member 33 has elasticity, a flexible connection is formed between the perforated cover and the housing 10, which is beneficial to further weakening the transmission of the noise generated by the motor 20.

[0048] In some embodiments, the third elastic connecting member 33 includes a sealing portion 331 and an embedding portion 332. A receiving groove is provided inside the sealing portion 331. The sealing portion 331 is sleeved on the fixing plate 113, so that the fixing plate 113 is embedded in the receiving groove. The sealing portion 331 covers the housing 10 to seal the housing 10. The embedding portion 332 extends into the housing 10 from the sealing portion 331. Specifically, the sealing portion 331 covers and abuts against the opening at the end of the housing 10 to form a seal. The embedding portion 332 is deeply arranged towards the inside of the housing 10. Preferably, the side surface of the embedding portion 332 abuts against the inner surface of the housing 10. With such a setting, the inside of the housing 10 can be sealed, and the noise generated by the motor 20 can be further weakened.

[0049] Please refer to Figure 1 and Figure 3, in some embodiments, the first elastic connecting member includes an elastic connecting portion 312 and a bracket 311, which is detachably connected to the elastic connecting portion 312, and the elastic connecting portion 312 is connected to the motor 20 through the bracket 311. Specifically, the bracket 311 is provided with a mounting portion 3111, and the elastic connecting portion 312 is detachably mounted in the mounting portion 3111. Such a setting facilitates the repair and replacement of the elastic connecting portion 312 and the bracket 311, and reduces the maintenance difficulty and cost.

[0050] In some embodiments, the bracket 311 includes a buckle 3112, and the motor 20 is formed with an avoidance space. The buckle 3112 cooperates with the avoidance space to limit the first elastic connecting member 31. Specifically, the elastic connecting portion 312 is provided with an ear hole 3121. The buckle 3112 passes through the ear hole 3121 and is detachably connected to the motor 20. An avoidance groove is provided on the motor 20, and a part of the buckle 3112 is located in the avoidance groove. Such a setting can fix the motor 20 and prevent the motor 20 from rotating after startup, facilitating the installation of the first elastic connecting member 31 on the housing 10. A clamping groove cooperating with the buckle 3112 is provided on the motor 20. In this embodiment, a diffuser is provided on the motor 20, and the buckle 3112 is buckled on the edge of the diffuser.

[0051] Please refer to Figure 1 and Figure 4 , in some embodiments, the motor 20 includes a motor body and a motor cover 21 covering the motor body. The second elastic connecting member 32 is at least partially embedded in the motor cover 21 and connected to the housing 10. Specifically, the two ends of the second elastic connecting member 32 are respectively provided with limiting structures. The limiting structures include a first limiting boss 321 and a second limiting boss 322. A fixing groove is formed between the first limiting boss 321 and the second limiting boss 322. The motor cover 21 is provided with a first mounting hole 211. One end of the limiting structure of the second elastic connecting member 32 is inserted into the first mounting hole 211 so that the motor cover 21 is clamped at the fixing groove. A module rear cover 13 is covered on the inner perforated cover 11. The module rear cover 13 is provided with a second mounting hole 131. The other end of the limiting structure of the second elastic connecting member 32 is inserted into the second mounting hole 131 to realize the connection between the motor 20 and the housing 10. A guiding inclined surface is further provided on one side of the first limiting boss 321 away from the second limiting boss 322 to facilitate the insertion of the limiting structure. Such a setting makes the connection between the second elastic connecting member 32 and the motor 20 simple and reliable, and is convenient for processing and installation.

[0052] In some embodiments, optionally, the number of the second elastic connectors 32 is multiple. Specifically, in this embodiment, the number of the second elastic connectors 32 is three, the motor cover 21 is circular, and the three second elastic connectors 32 are evenly arranged around the center of the motor cover 21. With such an arrangement, the supporting force received by the motor 20 can be made more uniform, and at the same time, the vibration generated by the motor 20 can be absorbed from more directions, thereby reducing the noise generated by the motor 20.

[0053] In some embodiments, the elastic connection portion 312, the second elastic connector 32, and the third elastic connector 33 are all integrally formed as an integral structure by rubber. In other embodiments, other elastic materials can also be selected for the elastic connection portion 312, the second elastic connector 32, and the third elastic connector 33.

[0054] In the description of this specification, the description with reference to the terms "certain embodiments", "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiments or examples. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0055] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the said features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, unless otherwise specifically and clearly defined.

[0056] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A power device, characterized in that, Comprising: A housing; A motor disposed within the housing; An elastic connecting member disposed between the housing and the motor, and the motor is spaced apart from the housing by the elastic connecting member.

2. The power device according to claim 1, characterized in that, The elastic connecting member includes a first elastic connecting member and a second elastic connecting member located at opposite ends of the motor, and the motor is connected to the housing through the first elastic connecting member and the second elastic connecting member respectively.

3. The power device according to claim 1, characterized in that, The housing further includes: A perforated cover sleeved on the outer periphery of the motor.

4. The power device according to claim 3, wherein, The perforated cover includes an inner perforated cover and an outer perforated cover nested with each other.

5. The power device according to claim 4, characterized in that, The inner perforated cover includes a cover body and a fixing plate disposed on the outer wall of the cover body. A first supporting portion is provided at the connection between the cover body and the fixing plate. The first supporting portion has a supporting surface that abuts against the inner wall surface of the outer perforated cover. A second supporting portion is provided at one end of the outer perforated cover away from the first supporting portion. The second supporting portion abuts against the outer wall surface of the cover body so that the inner perforated cover and the outer perforated cover are spaced apart.

6. The power device according to claim 5, wherein A limiting protrusion is provided on the first supporting portion, and the outer perforated cover includes a limiting groove, and the limiting protrusion and the limiting groove cooperate with each other.

7. The power device according to claim 3, characterized in that, The elastic connecting member further includes: A third elastic connecting member sleeved on the perforated cover and elastically abutted against the housing.

8. The power device according to claim 7, characterized in that, The third elastic connecting member includes a sealing portion and an embedding portion. The sealing portion covers the housing to seal the housing, and the embedding portion is embedded into the housing from the sealing portion.

9. The power device according to claim 2, wherein The first elastic connecting member includes: An elastic connecting portion; A bracket detachably connected to the elastic connecting portion, and the elastic connecting portion is connected to the motor through the bracket.

10. The power device according to claim 9, characterized in that, The bracket includes a buckle, and an avoidance space is formed on the motor. The buckle cooperates with the avoidance space to limit the first elastic connecting member.

11. The power device according to claim 2, characterized in that, The motor includes a motor body and a motor cover covering the motor body. At least a part of the second elastic connecting member is embedded in the motor cover and connected to the housing.

12. A floor cleaning device, characterized in that, A power device according to any one of claims 1-11.

Images