CN220045763U

CN220045763U - Cleaning apparatus

Info

Publication number: CN220045763U
Application number: CN202321057296.1U
Authority: CN
Inventors: 刘苗; 杨博; 钟添明; 陈雪妮
Original assignee: Yunjing Intelligent Innovation Shenzhen Co ltd; Yunjing Intelligent Shenzhen Co Ltd
Current assignee: Yunjing Intelligent Innovation Shenzhen Co ltd; Yunjing Intelligent Shenzhen Co Ltd
Priority date: 2023-05-05
Filing date: 2023-05-05
Publication date: 2023-11-21
Anticipated expiration: 2033-05-05

Abstract

The application discloses cleaning equipment, which comprises a machine body, and a cleaning device, a suction device and a recovery device which are arranged on the machine body. The cleaning device comprises a driving mechanism and a cleaning part, wherein the driving mechanism is used for driving the cleaning part to clean the cleaned object. The suction device is used for generating suction airflow so as to suck dirt on the surface of the cleaned object, and is provided with an air inlet and an air outlet. The recovery device is used for recovering the dirt sucked by the suction device, the recovery device is provided with an inlet and an outlet, the dirt enters the recovery device from the inlet, the outlet is communicated with the air inlet to form an air inlet channel, and air flow enters the suction device from the air inlet channel and enters the air outlet channel from the air outlet. At least two of the cleaning device, the suction device, the air inlet channel and the air outlet channel are provided with noise reduction structures so as to weaken noise generated at the at least two of the cleaning device, the suction device, the air inlet channel and the air outlet channel, effectively reduce noise of the whole machine and ensure acoustic characteristics of the whole machine.

Description

Cleaning apparatus

Technical Field

The application relates to the technical field of cleaning equipment, in particular to cleaning equipment.

Background

At present, cleaning devices, such as dust collectors, floor sweeping robots, floor washing machines, hand-operated suction machines and the like, generally use a fan as a power source to generate suction air flow, and utilize the suction air flow to suck dirt such as dust, liquid, mites and the like on surfaces to be cleaned, such as floors, bed surfaces and the like, and clean the surfaces by matching with a cleaning roller at the bottom and a driving motor thereof.

Cleaning devices typically have multiple sites that produce noise simultaneously when in operation. For example, the fan and the driving motor of the drum may generate noise due to mechanical vibration, and the fan may generate significant fluid noise at the air inlet and outlet due to high-speed airflow, thereby causing noise trouble to the user and affecting the user experience.

Disclosure of Invention

In view of this, the present utility model proposes a cleaning device.

The utility model provides cleaning equipment, which comprises a machine body and a cleaning device, wherein the cleaning device is arranged on the machine body:

the cleaning device comprises a driving mechanism and a cleaning part connected with the driving mechanism, wherein the driving mechanism is used for driving the cleaning part to clean an object to be cleaned;

a suction device for generating a suction air flow to suck dirt on the surface of the object to be cleaned, the suction device having an air inlet and an air outlet;

the recovery device is used for recovering the dirt sucked by the suction device and is provided with an inlet and an outlet, the dirt enters the recovery device from the inlet, the outlet is communicated with the air inlet to form an air inlet channel, and air flow enters the suction device from the air inlet channel and enters an air outlet channel from the air outlet;

And the cleaning device, the suction device, the air inlet channel and the air outlet channel are provided with noise reduction structures at least two positions so as to reduce noise generated at the cleaning device, the suction device, the air inlet channel and the air outlet channel.

In some embodiments, the suction device comprises a housing connected to the fuselage, the housing comprising a mounting cavity and a blower disposed in the mounting cavity; the noise reduction structure at the suction device comprises at least one of a vibration noise reduction structure, a first sound insulation noise reduction structure and a first sound absorption noise reduction structure.

In some embodiments, the vibration and noise reduction structure includes a resilient member connected to the housing and the blower; and an avoidance space for the vibration of the fan is arranged between the fan and the shell in at least one direction of the vibration direction of the fan.

In some embodiments, the blower is suspended from the mounting cavity solely by the spring.

In some embodiments, the elastic member is in tension at least when the blower vibrates.

In some embodiments, there is a gap between the housing and the fan in a direction perpendicular to the direction of vibration.

In some embodiments, the elastic member is an elastic strip, and the number of the elastic strips is greater than or equal to two in the circumferential direction of the fan.

In some embodiments, the vibration noise reduction structure includes at least two elastic members, and the at least two elastic members are disposed at intervals along the vibration direction.

In some embodiments, the vibration and noise reduction structure includes two elastic members; the two elastic pieces are a first elastic piece and a second elastic piece respectively; the first elastic piece comprises a first connecting part, a second connecting part and a first stretching part for connecting the first connecting part and the second connecting part; the second elastic piece comprises a third connecting part, a fourth connecting part and a second stretching part for connecting the third connecting part and the fourth connecting part; the shell comprises a first limiting part and a second limiting part; in the vibration direction of the fan, the fan comprises a first end and a second end opposite to the first end, wherein the first end comprises a first supporting surface, and the second end comprises a second supporting surface; when the fan is mounted in the mounting cavity, the first connecting portion abuts against the first limiting portion, the second connecting portion abuts against the first supporting surface, the third connecting portion abuts against the second limiting portion, the fourth connecting portion abuts against the second supporting surface, and the first stretching portion and the second stretching portion are in a stretching state at least when the fan vibrates.

In some embodiments, the first and/or third connection portions are hollow.

In some embodiments, the first and/or third connection portions are provided with a reinforcing structure.

In some embodiments, the second and/or fourth connection is hollow.

In some embodiments, the second and/or fourth connection portions are provided with a reinforcing structure.

In some embodiments, the air inlet includes a first air inlet provided in the housing and a second air inlet provided in the fan, the air outlet includes a first air outlet provided in the housing and a second air outlet provided in the fan, the first air inlet is communicated with the second air inlet, and at least a portion of the air inlet channel is formed between the first air inlet and the second air inlet, the first air outlet is communicated with the second air outlet, and at least a portion of the air outlet channel is formed between the first air outlet and the second air outlet, and the elastic element is provided between the air inlet channel and the air outlet channel to isolate the air inlet channel from the air outlet channel.

In some embodiments, the elastic member is an elastic sheet.

In some embodiments, the vibration noise reduction structure further includes a drainage elastic member, the drainage elastic member is connected to the housing and the fan, and at least part of the air outlet channel is formed between the drainage elastic member and the elastic member, so as to guide the air flow blown out from the second air outlet to be concentrated through the air outlet channel and blown out to the first air outlet.

In some embodiments, the housing includes a first wall and a second wall, the first wall and the second wall are spaced apart from each other and arranged on the outer side wall of the fan, and the second wall is located between the outer side wall of the fan and the first wall, the drainage elastic member is connected between the outer side wall of the fan and the first wall, the elastic member is connected between the outer side wall of the fan and the second wall, and at least part of the air outlet channel is formed between the first wall and the second wall.

In some embodiments, the first air outlet is located below the housing.

In some embodiments, the elastic member includes a first connection portion, a second connection portion, and a first stretch portion connecting the first connection portion and the second connection portion; the shell comprises a first limiting part; the fan comprises a first end and a second end opposite to the first end; the first end includes a first support surface; when the fan is installed in the installation cavity, the first stretching part is in a stretching state, the first connecting part abuts against the first limiting part, and the second connecting part abuts against the first supporting surface.

In some embodiments, the drainage elastic member includes a fifth connection portion, a sixth connection portion, and a third stretch portion connecting the fifth connection portion and the sixth connection portion; the shell comprises a third limiting part; the fan comprises a first end and a second end opposite to the first end; the second end includes a second support surface; when the fan is mounted in the mounting cavity, the third stretching portion is in a stretching state, the fifth connecting portion abuts against the second limiting portion, and the sixth connecting portion abuts against the second supporting surface.

In some embodiments, the fifth connection and/or the sixth connection is hollow.

In some embodiments, the second air outlet is located on a side of the blower.

In some embodiments, the fan includes a first end and a second end opposite the first end in a direction of vibration of the fan; the elastic piece is arranged between the first end of the fan and the shell, and the avoidance space is formed between the first end and the shell; the air inlet comprises a first air inlet arranged on the shell and a second air inlet arranged on the fan, the air outlet comprises a first air outlet arranged on the shell and a second air outlet arranged on the fan, the first air inlet is communicated with the second air inlet, at least part of the air inlet channel is formed between the first air inlet and the second air inlet, the first air outlet is communicated with the second air outlet, and at least part of the air outlet channel is formed between the first air outlet and the second air outlet; the vibration noise reduction structure further comprises a compression elastic piece, wherein the compression elastic piece is arranged between the air inlet channel and the air outlet channel, so that the air inlet channel is isolated from the air outlet channel.

In some embodiments, the elastic member includes a first connection portion, a second connection portion, and a first stretch portion connected to the first connection portion and the second connection portion; the shell comprises a first limiting part, the first end of the fan comprises a first supporting surface, when the fan is installed in the installation cavity, the first stretching part is in a stretching state, the first connecting part is abutted to the first limiting part, and the second connecting part is abutted to the first supporting surface.

In some embodiments, the first air inlet is formed in the bottom wall of the housing, the second air inlet is formed in the second end of the fan, the compression elastic member is at least partially abutted between the second end of the fan and the bottom wall of the housing, so that the air inlet channel and the air outlet channel are isolated, and the compression elastic member has a hollow structure so that the first air inlet is communicated with the second air inlet.

In some embodiments, the housing includes a first wall and a second wall, the first wall and the second wall are spaced apart from each other and arranged on the outer side wall of the fan, the second wall is located between the outer side wall of the fan and the first wall, the elastic member is connected between the outer side wall of the fan and the first wall, the compression elastic member is at least partially abutted between the outer side wall of the fan and the second wall, and at least a portion of the air outlet channel is formed between the first wall and the second wall.

In some embodiments, the housing includes at least two sub-housings, at least two sub-housings surround the fan and are sequentially wrapped from inside to outside to form the first sound insulation and noise reduction structure, a gap is formed between two adjacent sub-housings, and the sub-housing located at the innermost layer forms the mounting cavity.

In some embodiments, the noise reduction structure at the air intake channel comprises a second sound isolation and noise reduction structure comprising at least one layer of sound isolation wall disposed around the outlet and the air intake.

In some embodiments, among the at least one layer of sound deadening wall, the sound deadening wall located at the innermost layer forms the air intake passage.

In some embodiments, the second acoustic isolation and noise reduction structure includes an annular elastomeric seal.

In some embodiments, the width between the inner edge and the outer edge of the elastomeric seal is 2mm-4mm.

In some embodiments, the noise reduction structure at the air outlet channel comprises a second sound absorbing noise reduction structure comprising a sound absorbing structure disposed at the air outlet channel.

In some embodiments, the sound absorbing structure is mounted on the fuselage and/or the recovery device and is provided on a side wall of the air outlet channel.

In some embodiments, the sound absorbing structure includes a sound absorbing panel provided with a plurality of sound absorbing holes and a groove formed in the recovery device or the body; the sound absorbing plate is covered on the groove and is enclosed with the groove to form a sound absorbing cavity, and the sound absorbing cavity is communicated with the air outlet channel through the sound absorbing hole.

In some embodiments, the plurality of sound absorbing holes are micro holes and/or micro slits.

In some embodiments, the sound absorbing structure is filled with a sound absorbing material.

In some embodiments, the recess has an opening and a bottom opposite the opening, the sound absorbing panel closing the opening.

In some embodiments, the distance between the sound absorbing panel and the bottom is 5mm-20mm.

In some embodiments, the bottom of the groove includes a plurality of bottom surfaces, each of the bottom surfaces being at a different distance from the sound absorbing panel.

In some embodiments, the plurality of bottom surfaces includes a first bottom surface and a second bottom surface, the distance between the first bottom surface and the sound absorbing panel is a first distance, the distance between the second bottom surface and the sound absorbing panel is a second distance, and the first distance is greater than the second distance.

In some embodiments, the sound absorbing panel is provided with a plurality of sound absorbing holes, the holes having a hole diameter of less than 1mm.

In some embodiments, the sound absorbing panel is provided with a plurality of sound absorbing holes, and the aperture ratio of the sound absorbing holes on the sound absorbing panel is 1% -10%.

In some embodiments, the sound absorbing panel has a thickness of 0.1mm to 2mm.

In some embodiments, the sound absorbing panel faces the air outlet.

In some embodiments, the sound absorbing panel is removably attached to the recess.

In some embodiments, the recovery device has opposite third and fourth ends, the outlet being provided at the third end, the inlet being provided at the fourth end, the third end including an outlet region in which the outlet is provided and a remaining non-outlet region, the outlet being in sealed communication with the air intake; wherein the sound absorbing structure is formed in the non-outlet region.

In some embodiments, the number of sound absorbing structures is at least one.

In some embodiments, the number of the sound absorbing structures is two, and two sound absorbing structures are formed at the first end and are respectively located at two sides of the outlet.

In some embodiments, the outlet is provided with a filter.

In some embodiments, the noise reduction structure at the cleaning device comprises a vibration reduction structure, the cleaning device further comprises a bottom shell, the driving mechanism and the cleaning part are installed on the bottom shell, the driving mechanism comprises a driving piece and a transmission assembly connected with the driving piece, the transmission assembly is connected with the cleaning part, and the driving piece is used for driving the transmission assembly to drive the cleaning part to rotate; the vibration reduction structure comprises a first vibration reduction structure and/or a second vibration reduction structure and/or a third vibration reduction structure, the first vibration reduction structure is arranged at the joint between the driving piece and the bottom shell, the second vibration reduction structure is arranged at the joint between the transmission assembly and the bottom shell, and the third vibration reduction structure is arranged at the joint between the cleaning part and the transmission assembly.

According to the cleaning equipment provided by the embodiment of the application, the noise reduction structure is arranged on at least two of the cleaning device, the suction device, the air inlet channel and the air outlet channel, the noise reduction structure at the cleaning device can reduce the noise generated by the vibration of the driving mechanism, the noise reduction structure at the suction device can reduce the noise generated by the vibration of the suction device, the noise reduction structure at the air inlet channel can reduce the fluid noise generated by the air inlet of the suction device, and the noise reduction structure at the air outlet channel can reduce the fluid noise generated by the air outlet of the suction device. Because the noise generated by the cleaning device, the suction device, the air inlet channel and the air outlet channel at a plurality of positions can be felt by a user at the same time, the user experience is affected, and only single noise reduction is carried out on a certain position, and the noise reduction effect of the whole machine is difficult to obtain.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained by those skilled in the art without the inventive effort.

FIG. 1 is a schematic view of a cleaning apparatus according to an embodiment of the present application, illustrating the flow path of an air stream;

FIG. 2 is a schematic view of a cleaning apparatus according to an embodiment of the present application in a cross-sectional view in a front-rear direction;

FIG. 3 is a schematic cross-sectional view of the partial structure of FIG. 2 showing the flow path of the air flow;

FIG. 4 is a schematic cross-sectional view of a cleaning apparatus according to an embodiment of the present application;

FIG. 5 is a schematic cross-sectional view of the partial structure of FIG. 4;

FIG. 6 is a schematic diagram of a cleaning apparatus according to an embodiment of the present application;

fig. 7 is a schematic view of a first view structure of a driving mechanism according to an embodiment of the present application;

fig. 8 is a schematic view of a second view structure of a driving mechanism according to an embodiment of the present application;

fig. 9 is a schematic structural view of a vibration noise reduction structure provided in a suction device according to an embodiment of the present application;

FIG. 10 is a schematic diagram illustrating a modification of the vibration noise reduction structure according to the embodiment of the present application;

FIG. 11 is a schematic diagram of a second structure of a modification of the vibration noise reduction structure according to the embodiment of the present application;

FIG. 12 is a schematic view of the first elastic member and the second elastic member in the structure shown in FIG. 3 in an initial state;

FIG. 13 is a schematic diagram of a three-structure modification of the vibration noise reduction structure according to the embodiment of the present application;

fig. 14 is a schematic diagram of a modification of a vibration noise reduction structure according to an embodiment of the present application;

fig. 15 is a schematic diagram of a modification of the vibration noise reduction structure according to an embodiment of the present application;

FIG. 16 is a schematic diagram illustrating a modification of the vibration noise reduction structure according to an embodiment of the present application;

fig. 17 is a schematic diagram of a modification seventh structure of the vibration noise reduction structure according to the embodiment of the present application;

fig. 18 is a schematic view of a first view structure of a housing according to an embodiment of the present disclosure;

fig. 19 is a schematic view of a second view structure of the housing according to the embodiment of the application;

FIG. 20 is a schematic view of an elastic member in an initial state according to an embodiment of the present application;

FIG. 21 is a schematic structural view of an elastic member according to an embodiment of the present disclosure;

fig. 22 is a schematic cross-sectional view of an elastic member according to an embodiment of the present application.

FIG. 23 is a schematic structural view of a recycling apparatus according to an embodiment of the present application;

FIG. 24 is a schematic cross-sectional view of a recycling apparatus according to an embodiment of the present application;

FIG. 25 is an enlarged schematic view of a portion of the structure of FIG. 23;

FIG. 26 is a schematic view showing a cross section of a recovery device according to an embodiment of the present application in the front-rear direction;

FIG. 27 is a schematic view showing the structure of a sound absorbing panel according to an embodiment of the present application;

fig. 28 is a schematic structural view of a sound absorbing structure according to an embodiment of the present application.

The reference numerals are as follows:

100. a cleaning device; 10. a cleaning device; 11. a driving mechanism; 111. a driving member; 112. a transmission assembly; 12. a cleaning section; 13. a bottom case;

20. a suction device; 21. an air inlet; 211. a first air inlet; 212. a second air inlet; 22. an air outlet; 221. a first air outlet; 222. a second air outlet; 23. a housing; 23a, a first sub-housing; 23b, a second sub-housing; 23c, a third sub-housing; A. a mounting cavity; B. an avoidance space; 231. a first limit part; 232. a second limit part; 234. a first wall; 235. a second wall; 236. a bottom wall; 237. an open end; 238. a third limit part; 24. a blower; 241. a first end; 2411. a first support surface; 242. a second end; 2421. a second support surface; 25. an air inlet channel; 26. an air outlet channel; 261. a first gap; 262. a second gap; 30. a recovery device; 31. an inlet; 32. an outlet; 40. a filter;

50. A noise reduction structure; 50a, vibration damping structure; 50b, a vibration noise reduction structure; 50c, a first sound insulation and noise reduction structure; 50d, a first sound absorption and noise reduction structure; 50e, a second sound insulation and noise reduction structure; 50f, a second sound absorption and noise reduction structure; 51. a first vibration damping structure; 52. a second vibration damping structure; 53. a third vibration reduction structure; 54. an elastic member; 54a, a first elastic member; 54b, a second elastic member; 541. a first connection portion; 542. a second connecting portion; 543. a first stretching section; 544. a third connecting portion; 545. a fourth connecting portion; 546. a second stretching section; 547. a reinforcing structure; 55. a drainage elastic member; 551. a fifth connecting portion; 552. a sixth connecting portion; 553. a third stretching section; 56. compressing the elastic member; 57. a sound insulation wall; 57a, an elastic seal; 571. an inner edge; 572. an outer edge; 58. a sound absorbing structure; 581. a sound absorption hole; 582. a groove; 5821. an opening; 5822. a bottom; 58221. a first bottom surface; 58222. a second bottom surface; 583. an acoustic absorption cavity; 60. a fuselage.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It is also to be understood that the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

Therefore, the embodiment of the application provides cleaning equipment, which is provided with at least two noise reduction structures, can effectively reduce the noise of the whole machine and ensures the acoustic characteristics of the whole machine.

Referring to fig. 1 to 5, an embodiment of the present application provides a cleaning apparatus 100 including a cleaning device 10, a suction device 20, and a recovery device 30, the cleaning device 10 including a driving mechanism 11 and a cleaning portion 12 connected to the driving mechanism 11, the driving mechanism 11 for driving the cleaning portion 12 to clean an object to be cleaned. The suction device 20 is for generating a suction air flow to suck dirt on the surface of the object to be cleaned, and the suction device 20 has an air inlet 21 and an air outlet 22. The recovery device 30 is used for recovering the dirt sucked by the suction device 20, the recovery device 30 is provided with an inlet 31 and an outlet 32, the dirt enters the recovery device 30 from the inlet 31, the outlet 32 is communicated with the air inlet 21 to form an air inlet channel 25, and air flow enters the suction device 20 from the air inlet channel 25 and enters the air outlet channel 26 from the air outlet 22. Wherein, at least two of the cleaning device 10, the suction device 20, the air inlet channel 25 and the air outlet channel 26 are provided with a noise reduction structure 50 to reduce noise generated at least two of the cleaning device 10, the suction device 20, the air inlet channel 25 and the air outlet channel 26.

In the cleaning apparatus 100 according to the embodiment of the present application, the noise reduction structure 50 is disposed on at least two of the cleaning device 10, the suction device 20, the air intake channel 25 and the air outlet channel 26, the noise reduction structure 50 on the cleaning device 10 may reduce the noise generated by the vibration of the driving mechanism 11 by reducing the transmission of the vibration of the driving mechanism 11 and/or isolating the vibration noise of the driving mechanism 11, the noise reduction structure 50 on the suction device 20 may reduce the noise generated by the vibration of the suction device 20 by reducing the transmission of the vibration of the suction device 20 and/or isolating the vibration noise of the suction device 20 by absorbing the vibration noise by using the sound absorption structure, the noise reduction structure 50 on the air intake channel 25 may absorb the noise at the air intake or isolating the noise at the air intake channel 20 to reduce the fluid noise generated at the air outlet of the suction device 20 by using the sound absorption structure or isolating the noise at the air outlet channel 26. Because the noise generated by the cleaning device 10, the suction device 20, the air inlet channel 25 and the air outlet channel 26 at a plurality of positions can be felt by a user at the same time, the user experience is affected, and only a single noise reduction is carried out on a certain position, and the noise reduction effect of the whole machine is difficult to obtain, the noise reduction structure 50 is arranged on at least two of the cleaning device 10, the suction device 20, the air inlet channel 25 and the air outlet channel 26, the noise of the whole machine can be effectively reduced, and the acoustic characteristics of the whole machine are ensured.

Illustratively, the noise reducing structure 50 may be disposed in any two or three of the cleaning device 10, the suction device 20, the air inlet channel 25 and the air outlet channel 26, the noise reducing structure 50 may be disposed in all of the cleaning device 10, the suction device 20, the air inlet channel 25 and the air outlet channel 26, the noise reducing structure 50 at the cleaning device 10 may reduce the noise generated by the vibration of the driving mechanism 11 by reducing the transmission of the vibration of the driving mechanism 11 and/or isolating the vibration noise of the driving mechanism 11, the noise reducing structure 50 at the suction device 20 may reduce the transmission of the vibration of the suction device 20 and/or isolating the vibration noise of the suction device 20 by absorbing the vibration noise by the sound absorbing structure, the noise reducing structure 50 at the air inlet channel 25 may absorb the noise at the air inlet or isolating the noise at the air inlet channel 20, and the noise reducing structure 50 at the air outlet channel 26 may reduce the noise generated by absorbing the noise at the air outlet or isolating the noise at the air outlet channel 20 by the sound absorbing structure, thereby improving the overall noise reducing effect.

In some embodiments, as shown in fig. 1, 2 and 4, the cleaning apparatus 100 further includes a body 60, and the cleaning device 10, the suction device 20 and the recovery device 30 are all mounted to the body 60. Alternatively, the cleaning apparatus 100 may be a cleaner, a sweeping robot, a floor washing machine, a hand-held suction, or the like, which uses the blower 24 as a power source. In this embodiment, the cleaning apparatus 100 may be a floor scrubber.

In some embodiments, the recovery device 30 may be a dust box or a sewage tank.

In some embodiments, as shown in fig. 1, 2 and 4, the recovery device 30 includes a sump, which is detachably mounted to the main body 60 to facilitate cleaning of dirt in the sump, to recover the dirt on the surface of the object to be cleaned. The sewage tank can be detachably connected to the main body 60 by means of magnetic attraction, clamping, screws and the like.

In some embodiments, as shown in fig. 4, 6-8, the noise reduction structure 50 at the cleaning device 10 includes a vibration reduction structure 50a, the cleaning device 10 further includes a bottom shell 13, the driving mechanism 11 and the cleaning portion 12 are mounted on the bottom shell 13, the driving mechanism 11 includes a driving member 111 and a transmission assembly 112 connected to the driving member 111, the transmission assembly 112 is connected to the cleaning portion 12, and the driving member 111 is used for driving the transmission assembly 112 to rotate the cleaning portion 12. Illustratively, the cleaning portion 12 may employ a roller rotatably coupled to the bottom chassis 13.

During use, the roller rotates under the drive of the driving piece 111 and cleans the ground, in the cleaning process, the water spraying hole on the bottom shell 13 sprays clear water to infiltrate the roller (the water spraying hole is communicated with the clear water tank through a pipeline, the clear water tank can be arranged on the bottom shell 13 or the machine body 60), then the roller rotates to erase dirt on the ground, then the scraping strip on the bottom shell 13 scrapes dirt and sewage adhered on the roller, and the sucking device 20 sucks the dirt and sewage into the sewage tank for collection.

Illustratively, the driving member 111 may employ a motor, and the transmission assembly 112 may include a gear box, a transmission belt, and a connection shaft, the gear box is connected to an output shaft of the motor, the connection shaft is connected to the drum, the transmission belt is connected to the gear box and the connection shaft, the motor drives the gear box to rotate, and the connection shaft is driven by the transmission belt to rotate the drum.

In some embodiments, as shown in fig. 7-8, the vibration damping structure 50a includes a first vibration damping structure 51, where the first vibration damping structure 51 is disposed between the driving member 111 and the bottom shell 13, and specifically, wrapped around the outer wall of the driving member 111. In this embodiment, the first vibration damping structure 51 may adopt an annular elastic vibration damping body, and the elastic vibration damping body is abutted between the outer wall of the driving piece 111 and the inner wall of the bottom shell 13, and may be cooperatively connected by a fastening structure or the like, so that the transmission of the vibration of the driving piece 111 can be reduced through the arrangement of the first vibration damping structure 51, thereby playing a vibration damping role on the driving piece 111, reducing the noise of the driving piece 111 transmitted to the bottom shell 13 due to the vibration during operation, and improving the user experience.

In some embodiments, as shown in fig. 7-8, the vibration damping structure 50a includes a second vibration damping structure 52, where the second vibration damping structure 52 is disposed at the junction of the transmission assembly 112 and the bottom shell 13. In this embodiment, the second vibration damping structure 52 may be connected by adopting an i-shaped elastic vibration damping body and a screw, the elastic vibration damping body is abutted between the transmission assembly 112 and the bottom shell 13, and the vibration force and the vibration amplitude of the transmission assembly 112 can be reduced by setting the second vibration damping structure 52, so as to play a vibration damping role on the transmission assembly 112, reduce the noise transferred to the bottom shell 13 during the operation of the transmission assembly 112, and improve the user experience.

In some embodiments, as shown in fig. 7-8, the vibration damping structure 50a includes a third vibration damping structure 53, the third vibration damping structure 53 being provided at the junction of the drum and the drive assembly 112. In this embodiment, the third vibration-damping structure 53 is made of an elastic material and is elastically abutted against the bottom shell 13, the third vibration-damping structure 53 can be set into an annular groove structure, and is matched and fixed with the bottom shell 13, so that the bottom shell 13 can be clamped while the vibration-damping effect is achieved, and three stress points are generated by being matched with the first vibration-damping structure 51 and the second vibration-damping structure 52 and abutted against the bottom shell 13 together, so as to fix the driving mechanism 11 and reduce vibration transmission of the driving piece 111. Meanwhile, the third vibration reduction structure 53 is elastically abutted against the bottom shell 13 to play a sealing role, so that splashed sewage is prevented from entering the driving mechanism 11 when the roller works.

In some embodiments, the gear box comprises a planetary gear module, the planetary gear module comprises an outer gear ring and a plurality of planet gears meshed with the outer gear ring, the planet gears are in helical tooth fit with the outer gear ring, the transmission speed ratio according to the planetary gear module is large, the transmission efficiency is high, the operation noise is small, the noise generated by the gear box is effectively reduced, and the user experience is improved.

In some usage scenarios, when the cleaning apparatus 100 is in operation, the suction device 20 and the cleaning device 10 can operate simultaneously, the fan 24 generates air flow to realize upward suction power, the cleaning device 10 drives the roller to operate, and garbage and sewage can enter the inlet 31 of the sewage tank better while mopping. At this time, the user may feel noise of the vibration of the blower 24, noise of the operation of the cleaning device 10, and noise of the inlet and outlet air, and in order to enhance the user experience, at least two of the cleaning device 10, the suction device 20, the inlet air passage 25, and the outlet air passage 26 may be provided with a noise reduction structure 50. In order to improve the noise reduction effect, the noise generated by the vibration of the fan 24, the noise generated by the operation of the cleaning device 10, and the noise generated by the air inlet and outlet may be simultaneously processed, thereby realizing the overall noise reduction of the cleaning apparatus 100.

In some embodiments, as shown in fig. 1, 3 and 9, the suction device 20 includes a housing 23 and a fan 24 connected to a body 60, the housing 23 including a mounting cavity a, the fan 24 being disposed in the mounting cavity a. The noise reduction structure 50 at the suction device 20 includes at least one of a vibration noise reduction structure 50b, a first sound insulation noise reduction structure 50c, and a first sound absorption noise reduction structure 50d (as shown in fig. 28). In this embodiment, the fan 24 may generate noise due to contact between mechanical vibration and the housing 23 during the working process, the vibration noise reduction structure 50b may reduce vibration noise by weakening vibration of the fan 24 to avoid direct collision with the housing 23, the first sound insulation noise reduction structure 50c may wrap the fan 24 to isolate vibration noise of the fan 24 inside the housing 23, and the first sound absorption noise reduction structure 50d may adopt a micro-hole or micro-slit sound absorption structure to enable sound energy to rub and collide in pores or slits to consume energy so as to achieve the effect of sound absorption, thereby absorbing vibration noise generated by the fan 24 and realizing noise reduction. Illustratively, any one or any two of the vibration noise reduction structure 50b, the first sound insulation noise reduction structure 50c, and the first sound absorption noise reduction structure 50d may be provided at the suction device 20, and may be provided at all of the three to enhance the overall noise reduction effect.

In some embodiments, as shown in fig. 1 and 9, the vibration and noise reduction structure 50b includes an elastic member 54, the elastic member 54 being connected to the housing 23 and the blower 24. In at least one direction of the vibration direction of the blower 24, an avoidance space B for the vibration of the blower 24 is provided between the blower 24 and the housing 23. In the present embodiment, the fan 24 is connected to the housing 23 through the elastic member 54, and the elastic member 54 has elasticity, so that the fan 24 can provide elastic buffering during vibration. In at least one direction of the vibration direction of the fan 24, an avoidance space B for the vibration of the fan 24 is arranged between the fan 24 and the shell 23, so that the contact between the fan 24 and the shell 23 can be reduced, the isolation between the vibration of the fan 24 and the inner wall of the shell 23 is realized, the vibration noise is weakened, and the vibration and noise reduction of the fan 24 is realized.

In some usage scenarios, the vibration direction of the fan 24 is the up-down direction, and the avoidance space B may be only arranged above the fan 24, or the avoidance space B may be only arranged below the fan 24, so as to save space, and make the structure compact. And the avoidance space B can be arranged above and below the fan 24, so that the vibration reduction effect is good.

Alternatively, the connection between the elastic member 54 and the housing 23, 24 may be a sealed connection, such as by gluing or other fixing means to provide a sealed connection between the elastic member 54 and the housing 23, 24.

Alternatively, the connection between the elastic member 54 and the housing 23 and the blower 24 may be a contact connection, and the elastic member 54 and the housing 23 and the blower 24 may have a gap therebetween without external force, so that the sealing effect can be achieved when the elastic member 54 and the housing 23 are compressed and the elastic member 54 and the blower 24 are compressed.

Alternatively, the elastic member 54 may be connected to the housing 23 and the blower 24 by the housing 23, but not connected in a sealed state. For example, the elastic member 54 may take the form of an elastic strip, and two ends of the elastic strip are connected to the blower 24 and the housing 23, so as to provide elastic buffering and vibration reduction.

In some embodiments, as shown in fig. 9-11, the blower 24 is suspended from the mounting cavity a only by the resilient member 54. In this embodiment, the fan 24 may be suspended in the installation cavity a by one or more elastic members 54, that is, there is an avoidance space B between the upper end and the lower end of the fan 24 and the housing 23, so as to achieve a better vibration reduction effect.

In some embodiments, the elastic member 54 is in tension at least when the blower 24 vibrates. That is, the elastic member 54 may be in an unstretched state when the fan 24 is not vibrated, as shown in fig. 11, in this embodiment, two elastic members 54, namely, a first elastic member 54a and a second elastic member 54b, are adopted, where the first elastic member 54a is located at the upper end of the fan 24, and if the fan 24 is not vibrated, the first elastic member 54a may be in an initial state, that is, not stretched, only when the fan 24 begins to vibrate, the fan 24 is prevented from vibrating too severely due to the elastic force of the first elastic member 54a, and the first elastic member 54a may be stretched, that is, in this embodiment, the elastic member 54 may be stretched only when the fan 24 vibrates, that is, when the fan 24 vibrates in a certain direction, the elastic member 54 is driven to stretch, and because the elastic member 54 has an elastic restoring force, the elastic restoring force is capable of buffering the vibration of the fan 24 in the direction. In this embodiment, the elastic member 54 may also suspend the fan 24 in the installation cavity a as shown in fig. 1, so that not only the fan 24 vibrates to drive the elastic member 54 to stretch, but also the fan 24 does not vibrate to pretension the elastic member 54 under the action of gravity. In this embodiment, the vibration of the blower 24 can be buffered by fully utilizing the stretching of the elastic member 54, so as to realize elastic vibration reduction, to realize isolation between the vibration of the blower 24 and the inner wall of the housing 23, and to weaken vibration noise, and to realize vibration reduction and noise reduction of the blower 24.

In some embodiments, as shown in fig. 10, there is a gap C between the housing 23 and the blower 24 in a direction perpendicular to the vibration direction. In this embodiment, since the fan 24 may shake left and right or vibrate in the left and right directions when vibrating, a gap C may be provided between the side wall of the fan 24 and the side wall of the housing 23 to reduce the contact between the fan 24 and the side wall of the housing 23 when shaking left and right, thereby reducing noise.

In some embodiments, as shown in fig. 10, the vibration noise reduction structure 50b includes at least two elastic members 54, and the at least two elastic members 54 are spaced apart in the vibration direction. In the present embodiment, the stability of the blower 24 can be improved by providing at least two elastic members 54. For example, in the case that the suction device 20 is entirely skewed, if only one elastic member 54 is connected to the blower 24 (as shown in fig. 9), the blower 24 may be skewed inside the housing 23 under the action of gravity, and thus the blower 24 is likely to collide with the housing 23, so that the plurality of elastic members 54 may not only support or pull the blower 24 to a certain extent, but also maintain the position of the blower 24 without being skewed, and further promote the buffering and vibration damping effect. Therefore, at least two elastic members 54 are disposed along the vibration direction of the fan 24, so as to prevent the fan 24 from being inclined due to shaking left and right during the vibration process, so that the fan 24 is more stable and the vibration damping performance is improved.

In some embodiments, as shown in fig. 11 and 12, the vibration noise reduction structure 50b includes two elastic members 54, and the two elastic members 54 are a first elastic member 54a and a second elastic member 54b, respectively. The first elastic member 54a includes a first connection portion 541, a second connection portion 542, and a first stretching portion 543 connecting the first connection portion 541 and the second connection portion 542. The second elastic member 54b includes a third connecting portion 544, a fourth connecting portion 545, and a second stretching portion 546 connecting the third connecting portion 544 and the fourth connecting portion 545. The housing 23 includes a first limit portion 231 and a second limit portion 232. The blower 24 includes a first end 241 and a second end 242 opposite the first end 241. The first end 241 includes a first support surface 2411 and the second end 242 includes a second support surface 2421. When the fan 24 is mounted in the mounting cavity a, the first connection portion 541 abuts against the first limiting portion 231, the second connection portion 542 abuts against the first supporting surface 2411, the third connection portion 544 abuts against the second limiting portion 232, the fourth connection portion 545 abuts against the second supporting surface 2421, and the first stretching portion 543 and the second stretching portion 546 are in a stretched state at least when the fan 24 vibrates. In this embodiment, the first end 241 of the blower 24 may be an upper end of the blower 24, the second end 242 of the blower 24 may be a lower end of the blower 24, and when the upper end of the blower 24 and the housing 23 have the avoiding space B, the blower 24 will have an upward force on the first stretching portion 543 when vibrating upward, so as to stretch the first stretching portion 543, and since the stretched first stretching portion 543 has an elastic restoring force, the elastic restoring force can prevent the blower 24 from continuing to vibrate upward, so as to realize elastic vibration reduction. When the avoidance space B is provided between the lower end of the blower 24 and the housing 23, the blower 24 will have a downward force on the second stretching portion 546 when vibrating downward, so that the second stretching portion 546 stretches, and since the stretched second stretching portion 546 has an elastic restoring force, the elastic restoring force can prevent the blower 24 from continuing to vibrate downward, so as to realize elastic vibration reduction. Both the first stretching part 543 and the second stretching part 546 can be in a stretching state when the fan 24 vibrates, so that the vibration damping effect is improved, and the stretching of the elastic piece 54 is fully utilized to buffer the vibration of the fan 24, so that elastic vibration damping is realized, and vibration noise is weakened.

Specifically, as shown in fig. 11 and 12, in the initial state (without external force, the gravity of the fan 24 is ignored), the distance between the surface of the first elastic member 54a contacting the first limiting portion 231 and the surface of the second elastic member 54b contacting the second limiting portion 232 is a first distance a (as shown in fig. 12), and the distance between the first limiting portion 231 and the second limiting portion 232 is a second distance b. Wherein the first distance a is greater than or equal to the second distance b. In the present embodiment, the first distance a is set equal to the second distance b, and the first stretching portion 543 and the second stretching portion 546 are acted by the limitation of the first limiting portion 231 and the second limiting portion 232 when the fan 24 is installed and vibrates, so that the first stretching portion 543 and the second stretching portion 546 stretch to realize elastic vibration reduction; if the first distance a is set to be greater than the second distance b, the limitation of the first limit portion 231 and the second limit portion 232 acts on the first stretching portion 543 and the second stretching portion 546 when the fan 24 is mounted, so that the first stretching portion 543 and the second stretching portion 546 can stretch even if the fan 24 does not vibrate, that is, the fan 24 is more stably mounted in the mounting cavity a.

In the prior art, in order to realize vibration reduction, the elastic member 54 is generally disposed in the vibration direction of the fan 24, and the fan 24 and the housing 23 are utilized to compress the elastic member 54, so as to buffer the vibration by the ability of the elastic member 54 to be compressively deformed, thereby reducing noise. Since the compression of the elastic member 54 is limited, especially in the case of a conventional silicone seal, the vibration/noise reduction effect of the blower 24 is limited, and thus the vibration/noise reduction effect is affected. In the suction device 20 according to the embodiment of the present application, vibration is damped by stretching the elastic member 54, so that the elastic damping in the stretching direction of the first stretching portion 543 and the second stretching portion 546 can be fully utilized, and vibration is further damped, thereby isolating vibration of the fan 24 from the inner wall of the housing 23, and weakening vibration noise.

In some embodiments, as shown in fig. 11-12 and 21, the second connection portion 542 and/or the fourth connection portion 545 are hollow, which can enhance the heat dissipation effect of the fan 24.

In some embodiments, as shown in fig. 11-12 and 22, the second connection portion 542 is provided with a reinforcing structure 547 capable of reinforcing the rigidity of the second connection portion 542 to prevent the first elastic member 54a from causing deformation of the second connection portion 542 in a stretched state. Thereby, the second connection portion 542 is shaped, that is, the second connection portion 542 can maintain stable contact with the blower 24 after the first elastic member 54a is stretched.

Specifically, the second connection portion 542 may also enclose the edge of the upper end of the fan 24, that is, the second connection portion 542 forms a hollow shape at the upper end of the fan 24 to facilitate heat dissipation of the fan 24, where the hollow shape may be a circle, a square, a polygon, or be determined according to the shape of the fan 24. The first connection portion 541, the first stretching portion 543, and the second connection portion 542 are integrally formed, and form a first elastic member 54a having a convex shape in a cross section above, so as to be mounted on the upper end of the blower 24, and buffer vibration by using elastic force of the elastic member 54, so that the upper end of the blower 24 is prevented from colliding with the housing 23, thereby reducing noise. Likewise, the same reinforcing structure 547 may be provided on the fourth connecting portion 545, and the fourth connecting portion 545 may be enclosed at the edge of the lower end of the blower 24.

In some embodiments, as shown in fig. 11-12, 22, the first connection 541 and/or the third connection 544 is hollow so as to be sleeved outside the blower 24.

In some embodiments, the first connection portion 541 may also be provided with a reinforcing structure 547 (as shown in fig. 22) capable of reinforcing the rigidity of the first connection portion 541, and preventing the first elastic member 54a from causing deformation of the first connection portion 541 when in a stretched state. Thereby, the first connecting portion 541 is shaped, that is, it is ensured that the first connecting portion 541 can maintain stable contact with the housing 23 after the first elastic member 54a is stretched. Similarly, the third connection portion 544 may be provided with the same reinforcing structure 547.

In some embodiments, the stiffness of the reinforcing structure 547 is greater than the stiffness of the resilient member 54. The arrangement of the reinforcing structure 547 can improve the structural strength of the first connection portion 541 and/or the second connection portion 542 and/or the third connection portion 544 and/or the fourth connection portion 545, so as to facilitate shaping of the first connection portion 541 and/or the second connection portion 542 and/or the third connection portion 544 and/or the fourth connection portion 545, and prevent the first connection portion 541 and/or the second connection portion 542 and/or the third connection portion 544 and/or the fourth connection portion 545 from being deformed under the stress and stretching state of the elastic member 54.

In some embodiments, the reinforcement structure 547 is a metal material. In this embodiment, the reinforcement structure 547 may be a metal sheet to facilitate supporting the first connection portion 541 and/or the second connection portion 542 and/or the third connection portion 544 and/or the fourth connection portion 545, and avoid stress deformation of the first connection portion 541 and/or the second connection portion 542 and/or the third connection portion 544 and/or the fourth connection portion 545. Of course, the reinforcing structure 547 may be made of other materials, such as hard plastic, and may be made of a material with high hardness and difficult deformation.

As one embodiment, the elastic member 54 is an elastic strip, and the number of elastic strips is greater than or equal to two in the circumferential direction of the blower 24. In this embodiment, more than two elastic strips may be disposed at intervals around the circumference of the fan 24, so that the fan 24 is stressed and balanced, and the elastic member 54 does not have a sealing effect due to the gaps between the elastic strips in the circumference.

In some embodiments, as shown in fig. 3 and 13-17, the air inlet 21 includes a first air inlet 211 provided in the housing 23 and a second air inlet 212 provided in the fan 24, and the air outlet 22 includes a first air outlet 221 provided in the housing 23 and a second air outlet 222 provided in the fan 24. The first air inlet 211 is communicated with the second air inlet 212, at least part of the air inlet channel 25 is formed between the first air inlet 211 and the second air inlet 212, the first air outlet 221 is communicated with the second air outlet 222, at least part of the air outlet channel 26 is formed between the first air outlet 221 and the second air outlet 222, and the elastic piece 54 is arranged between the air inlet channel 25 and the air outlet channel 26 so as to isolate the air inlet channel 25 from the air outlet channel 26. In this embodiment, the air inlet channel 25 and the air outlet channel 26 of the fan 24 may be isolated by the elastic member 54, so that the suction force of the fan 24 may be concentrated on the first air inlet 211 of the housing 23, and then the recovery device 30 connected to the first air inlet 211 of the housing 23 may be subjected to negative pressure suction (as shown in fig. 1), so as to prevent air leakage, i.e. realize sealing. At this time, the elastic member 54 can realize both vibration reduction and sealing effects of the blower 24.

Illustratively, in order to achieve the sealing effect of the elastic member 54, the elastic member 54 may be made of rubber, silicone rubber, or the like, such as a silicone sheet.

As another embodiment of the elastic member 54, the elastic member 54 is an elastic sheet. The elastic member 54 can be isolated by adopting a sheet structure, so that sealing is realized.

In some embodiments, as shown in fig. 14 and 15, the vibration noise reduction structure 50b further includes a drainage elastic member 55, where the drainage elastic member 55 is connected to the housing 23 and the fan 24, and at least a part of the air outlet channel 26 is formed between the drainage elastic member 55 and the elastic member 54, that is, the air outlet channel 26 is isolated from other parts inside the housing 23 by using the drainage elastic member 55 and the elastic member 54, so as to guide the air flow blown from the second air outlet 222 to be blown out to the first air outlet 221 through the air outlet channel 26 in a concentrated manner. In this embodiment, the first air outlet 221 and the second air outlet 222 may be disposed at a side of the fan 24, and through the arrangement of the drainage elastic member 55, the air flow can be guided by the elastic member 54 to flow in a direction as shown in fig. 1, so as to avoid unstable factors caused by the air blown out from the first air outlet 221 flowing to other areas in the installation cavity a such as the avoidance space B.

For example, in some usage scenarios, the circuit board of the suction device 20 is usually installed inside the housing 23, for example, above the installation cavity a, that is, near the avoidance space B, so as to prevent the fan 24 from excessively blowing, the circuit board is damaged by the water vapor entrained by the air flow, and the circuit connection is unstable, so that the air outlet channel 26 is isolated from the avoidance space B by the arrangement of the drainage elastic member 55, and the air flow with the water vapor is prevented from blowing toward the circuit board.

In some embodiments, as shown in fig. 15, the housing 23 includes a first wall 234 and a second wall 235, the first wall 234 and the second wall 235 are spaced apart from the outer side wall of the blower 24, the second wall 235 is located between the outer side wall of the blower 24 and the first wall 234, the drainage elastic member 55 is connected between the outer side wall of the blower 24 and the first wall 234, and the elastic member 54 is connected between the outer side wall of the blower 24 and the second wall 235. In this embodiment, through the arrangement of the first wall 234 and the second wall 235, the double-layer sound insulation effect is provided, so that the noise of the fan 24 can be better isolated, and the noise reduction effect is improved. And since the first wall 234 and the second wall 235 can form at least part of the air outlet passage 26, the arrangement direction of the first wall 234 and the second wall 235 can change the direction of the air outlet passage 26.

In some embodiments, as shown in fig. 15, the first air outlet 221 is located below the housing 23. In this embodiment, the arrangement mode can make the suction device 20 blow downwards, so as to avoid the suction device 20 blowing against the user when being applied to the cleaning device 100 to work, and improve the user experience.

In some embodiments, as shown in fig. 16, the elastic member 54 includes a first connection portion 541, a second connection portion 542, and a first stretching portion 543 connecting the first connection portion 541 and the second connection portion 542. The housing 23 includes a first limit portion 231. The blower 24 includes a first end 241 and a second end 242 opposite the first end 241. The first end 241 includes a first supporting surface 2411, when the fan 24 is mounted in the mounting cavity a, the first stretching portion 543 is in a stretched state, the first connecting portion 541 abuts against the first limiting portion 231, and the second connecting portion 542 abuts against the first supporting surface 2411. In this embodiment, the first connection portion 541 is in contact with the first limiting portion 231 and the first supporting surface 2411 by means of abutting, so that the first connection portion 541 can act on the first limiting portion 231 and the first supporting surface 2411 when the first stretching portion 543 is in a stretched state, and thus the abutting position is more compact to achieve a sealing effect. The elastic member 54 may play a role in vibration damping or sealing.

In some embodiments, as shown in fig. 16, the drainage elastic member 55 includes a fifth connection portion 551, a sixth connection portion 552, and a third stretched portion 553 connecting the fifth connection portion 551 and the sixth connection portion 552. The housing 23 includes a third stop 238, and the blower 24 includes a first end 241 and a second end 242 opposite the first end 241. The second end 242 includes a second support surface 2421. When the fan 24 is mounted in the mounting cavity a, the third stretching portion 553 is in a stretched state, the fifth connecting portion 551 abuts against the third limiting portion 238, and the sixth connecting portion 552 abuts against the second supporting surface 2421. In the present embodiment, the fifth connection portion 551 is in contact with the third limiting portion 238 and the second supporting surface 2421 by the abutting manner, and can act on the third limiting portion 238 and the second supporting surface 2421 when the third stretching portion 553 is in a stretched state, so that the abutting position is more compact to achieve the sealing effect. The drainage spring 55 can play a role in vibration reduction or sealing.

Specifically, as shown in fig. 16, the sixth connection portion 552 of the drainage elastic member 55 may abut against the second supporting surface 2421 at the upper end of the fan 24, the second connection portion 542 of the elastic member 54 may abut against the first supporting surface 2411 at the lower end of the fan 24, and at this time, the first limiting portion 231 is disposed on the second wall 235, that is, the first connection portion 541 of the elastic member 54 may be connected to the first limiting portion 231 disposed on the second wall 235, and the third limiting portion 238 is disposed on the first wall 234, that is, the fifth connection portion 551 of the drainage elastic member 55 may be connected to the third limiting portion 238 disposed on the first wall 234.

In some embodiments, as shown in fig. 11, 12 and 16, in the initial state (without external force, neglecting the gravity of the fan 24), the distance between the surface of the drainage elastic member 55 contacting the third limiting portion 238 and the surface of the elastic member 54 contacting the first limiting portion 231 is a first distance a (as shown in fig. 12), and the distance between the third limiting portion 238 and the first limiting portion 231 is a second distance b. Wherein the first distance a is greater than or equal to the second distance b. In the present embodiment, the first distance a is set to be greater than the second distance b, and when the fan 24 is mounted, the restriction of the third restricting portion 238 and the first restricting portion 231 acts on the third stretching portion 553 and the first stretching portion 543, so that the third stretching portion 553 and the first stretching portion 543 can stretch even if the fan 24 does not vibrate, and at this time, the sealing of the air inlet passage 25 and the air outlet passage 26 and the drainage of the air outlet passage 26 can be ensured.

In some embodiments, as shown in fig. 16 and 21, the structure of the drainage elastic member 55 may be the same as that of the elastic member 54, and the sixth connecting portion 552 is hollow, so as to improve the heat dissipation effect of the fan 24.

In some embodiments, the sixth connection portion 552 may also be provided with a reinforcing structure 547 (as shown in fig. 22) capable of reinforcing the rigidity of the sixth connection portion 552 and preventing the drainage elastic member 55 from causing deformation of the sixth connection portion 552 in a stretched state. Thereby, the sixth connecting portion 552 is shaped, that is, the sixth connecting portion 552 can maintain stable contact with the blower 24 after the first elastic member 54a is stretched.

Specifically, the sixth connection portion 552 may also enclose the edge of the upper end of the fan 24, that is, the sixth connection portion 552 forms a hollow shape at the upper end of the fan 24 to facilitate heat dissipation of the fan 24, where the hollow shape may be a circle, a square, a polygon, or be determined according to the shape of the fan 24. The fifth connection portion 551, the third stretching portion 553, and the sixth connection portion 552 are integrally formed, and a drainage elastic member 55 having a convex shape in cross section is formed so as to be installed at the upper end of the blower 24 to achieve vibration reduction.

In some embodiments, as shown in fig. 16, the fifth connection 551 is hollow so as to be sleeved outside the blower 24.

In some embodiments, the fifth connection portion 551 may also be provided with a reinforcing structure 547 (as shown in fig. 22), which can strengthen the rigidity of the fifth connection portion 551 and prevent the drainage elastic element 55 from causing deformation of the fifth connection portion 551 when in a stretched state. Thereby, the fifth connecting portion 551 is shaped, that is, the fifth connecting portion 551 is ensured to be in stable contact with the housing 23 after the first elastic member 54a is stretched.

In some embodiments, as shown in fig. 14-16, the second air outlet 222 is located on a side of the blower 24. In this embodiment, the second air outlet 222 may also be disposed on a side of the fan 24 to prevent air flow from blowing toward the circuit board from the upper end of the fan 24, thereby avoiding damage to the circuit board caused by moisture entrained by the air flow and unstable circuit.

In some embodiments, as shown in fig. 17, 3 and 20, in the vibration direction of the blower 24, the blower 24 includes a first end 241 and a second end 242 opposite to the first end 241, the elastic member 54 is disposed between the first end 241 of the blower 24 and the housing 23, and an escape space B is provided between the first end 241 of the blower 24 and the housing 23. The air inlet 21 comprises a first air inlet 211 arranged on the shell 23 and a second air inlet 212 arranged on the fan 24, the air outlet 22 comprises a first air outlet 221 arranged on the shell 23 and a second air outlet 222 arranged on the fan 24, the first air inlet 211 is communicated with the second air inlet 212, at least part of an air inlet channel 25 is formed between the first air inlet 211 and the second air inlet 212, the first air outlet 221 is communicated with the second air outlet 222, and at least part of an air outlet channel 26 is formed between the first air outlet 221 and the second air outlet 222. The vibration noise reduction structure 50b further includes a compression elastic member 56, where the compression elastic member 56 is disposed between the air inlet channel 25 and the air outlet channel 26 to isolate the air inlet channel 25 from the air outlet channel 26. In this embodiment, the fan 24 can be damped by the elastic member 54, and the sealing effect can be achieved by the arrangement of the compression elastic member 56, so that the air inlet channel 25 and the air outlet channel 26 are isolated, the suction force of the fan 24 can be concentrated at the first air inlet 211 of the housing 23, and then the recovery device 30 connected with the first air inlet 211 of the housing 23 is subjected to negative pressure suction (as shown in fig. 1), so that air leakage is prevented, i.e. sealing is achieved. Compared with the scheme that the avoidance space B is arranged at the two ends of the fan 24, the scheme can save a certain structural space and simplify the installation structure, and the whole suction device 20 is smaller.

In some embodiments, as shown in fig. 17, the elastic member 54 includes a first connection portion 541, a second connection portion 542, and a first stretching portion 543 connected to the first connection portion 541 and the second connection portion 542. The housing 23 includes a first limiting portion 231, the first end 241 of the fan 24 includes a first supporting surface 2411, when the fan 24 is mounted in the mounting cavity a, the first stretching portion 543 is in a stretched state, the first connecting portion 541 abuts against the first limiting portion 231, and the second connecting portion 542 abuts against the first supporting surface 2411. In this embodiment, the elastic member 54 abuts against the first limiting portion 231 through the first connecting portion 541 to achieve sealing, and abuts against the first supporting surface 2411 through the second connecting portion 542 to achieve sealing, at this time, the elastic member 54 not only plays a role in vibration reduction and sealing, but also plays a role in drainage, and the elastic member 54 is blocked between the air outlet channel 26 and the avoidance space B, so that air flow blown out from the second air outlet 222 is guided to be output from the air outlet channel 26, and other areas such as the avoidance space B are avoided from being blown around by the air flow.

In some embodiments, the first air inlet 211 is disposed on the bottom wall 236 of the housing 23, the second air inlet 212 is disposed on the second end 242 of the fan 24, and at least a portion of the compression elastic member 56 (the bottom 5822 of the compression elastic member 56) is abutted between the second end 242 of the fan 24 and the bottom wall 236 of the housing 23 to isolate the air inlet channel 25 from the air outlet channel 26, and the compression elastic member 56 has a hollow structure to enable the first air inlet 211 to communicate with the second air inlet 212. The bottom wall 236 of the housing 23 can directly abut against the compression elastic member 56 without leaving the escape space B, thereby realizing space saving and volume reduction of the housing 23.

Specifically, the first connection portion 541 abuts against the first limiting portion 231 to achieve sealing through the stretching action of the first stretching portion 543, the second connection portion 542 abuts against the first supporting surface 2411 to achieve sealing, meanwhile, the fan 24 can be buffered through the first stretching portion 543 in the vibration process due to the stretching action of the elastic piece 54, at this time, the compression portion (i.e., the abutting portion) of the elastic piece 54 is sealed and peeled off from the stretching portion, the compression portion can be fully compressed to achieve sealing, rigidity of the stretching portion can be set lower, vibration of the fan 24 can be buffered through stretching of the elastic piece 54, elastic vibration reduction is achieved, isolation between the vibration of the fan 24 and the inner wall of the shell 23 is achieved, the fan 24 is prevented from directly colliding with the shell 23 to reduce vibration noise, and vibration reduction and noise reduction of the fan 24 are achieved.

If the elastic member 54 is used for vibration reduction through compression, the elastic member 54 needs to simultaneously bear compression and vibration reduction, and the sealing needs a larger compression force, so that the buffering capacity of the elastic member 54 is reduced in the process of bearing pressure, the vibration reduction effect is degraded, and the vibration reduction performance is affected. Therefore, in the embodiment of the application, the elastic member 54 is stretched, so that the elastic vibration reduction of the elastic member 54 is fully utilized while the sealing effect is maintained, and the effective vibration reduction is realized.

In some embodiments, as shown in fig. 17, the housing 23 includes a first wall 234 and a second wall 235, the first wall 234 and the second wall 235 are spaced apart from each other on the outer side wall of the fan 24, the second wall 235 is located between the outer side wall of the fan 24 and the first wall 234, the elastic member 54 is connected between the outer side wall of the fan 24 and the first wall 234, the compression elastic member 56 is at least partially (the side portion of the compression elastic member 56) abutted between the outer side wall of the fan 24 and the second wall 235, and at least a portion of the air outlet channel 26 is formed between the first wall 234 and the second wall 235. In this embodiment, through the arrangement of the first wall 234 and the second wall 235, the double-layer sound insulation effect is provided, so that the noise of the fan 24 can be better isolated, and the noise reduction effect is improved. And since the first wall 234 and the second wall 235 can form at least part of the air outlet passage 26, the arrangement direction of the first wall 234 and the second wall 235 can change the direction of the air outlet passage 26.

In some embodiments, as shown in fig. 19 and 20, in the initial state (without external force), a distance between a surface of the elastic member 54 contacting the first limiting portion 231 and a lower edge of the compression elastic member 56 is a third distance c, and a distance between the first limiting portion 231 and the bottom wall 236 is a fourth distance d. Wherein the third distance c is greater than or equal to the fourth distance d. In the present embodiment, the third distance c is set to be greater than or equal to the fourth distance d, and the first stretching portion 543 is acted by the limitation of the first limiting portion 231 when the fan 24 is installed and vibrated, so that the first stretching portion 543 stretches, thereby realizing elastic vibration reduction. The limitation of the bottom wall 236 when the fan 24 vibrates is such that the second end 242 of the fan 24 is engaged to compress the compression spring 56 to effect a seal.

In some embodiments, as shown in fig. 18 and 19, the housing 23 has an opening 5821 end 237 opposite the bottom wall 236, the first end 241 of the blower 24 extends out of the opening 5821 end 237, and the rim of the opening 5821 end 237 forms the first stop 231. In this embodiment, the first stretching portion 543 is fixed to the edge of the end 237 of the opening 5821, so as to facilitate positioning and operation.

In some embodiments, the elastomeric member 54 has a shore hardness of 30-60 degrees. In this embodiment, the shore hardness of the elastic member 54 is selected to be within the range of 30-60 degrees, so that the shock absorption rate and the production reliability are better. Illustratively, the shore hardness of elastomeric member 54 may be 30 degrees, 35 degrees, 40 degrees, 45 degrees, 50 degrees, 55 degrees, or 60 degrees. Alternatively, the shore hardness of the elastic member 54 is 45 degrees, and the shock absorption rate and the production reliability are better.

In some embodiments, the housing 23 includes at least two sub-housings, each having a thickness greater than 1mm, to meet sound insulation requirements for better sound insulation. At least two sub-shells surround the fan 24 and are sequentially wrapped from inside to outside to form a first sound insulation and noise reduction structure 50c, and a gap between two adjacent sub-shells is 1mm-10mm. In this embodiment, the inner-most sub-housing forms the installation cavity a therein, and the inner-most sub-housing may include the first wall 234 and the second wall 235, and the arrangement of the multi-layer sub-housing can realize multi-layer sound insulation, so that the sound insulation effect is better. The gap between two adjacent sub-shells, namely an air layer, the thickness of the air layer can be 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm or 10mm, and the air layer can be actually designed according to the sound insulation demand frequency.

As shown in fig. 3, the housing 23 includes three sub-housings, namely a first sub-housing 23a, a second sub-housing 23b wrapped around the first sub-housing 23a, and a third sub-housing 23c wrapped around the second sub-housing 23b, and the fan 24 noise can be effectively isolated inside the housing 23 by adopting a three-layer sound insulation design.

In some embodiments, as shown in fig. 2, 3, 5, and 15, the noise reduction structure 50 at the air intake channel 25 includes a second acoustic noise reduction structure 50e, the second acoustic noise reduction structure 50e including at least one layer of acoustic walls 57, the acoustic walls 57 disposed about the outlet 32 and the air intake 21. Of the at least one sound deadening wall 57, the sound deadening wall 57 located at the innermost layer forms the air intake passage 25. In this embodiment, the air inlet 21 refers to the first air inlet 211 of the housing 23, and the sound insulation wall 57 surrounds between the outlet 32 and the air inlet 21 to guide the air flow from the outlet 32 to enter the air inlet 21 through the air inlet channel 25 and block the noise generated when the air inlet 21 is in air from being transmitted to the outside, so as to effectively isolate the noise generated when the suction device 20 is in air, and the long flow path from the outlet 32 to the air outlet 22 through the air inlet 21 and the suction device 20 can effectively isolate the noise, thereby avoiding the noise from being directly transmitted to the outside. As shown in fig. 1, 3 and 5, the outlet 32 of the recycling device 30 and the air inlet 21 of the suction device 20 are located inside the second soundproof and noise reduction structure 50e, and the air outlet passage 26 is located outside the second soundproof and noise reduction structure 50e, thereby isolating the air inlet passage 25 from the air outlet passage 26. It can be seen that the second sound insulation and noise reduction structure 50e also insulates the noise reduction structure 50 at the air inlet channel 25 and the air outlet channel 26.

In some embodiments, as shown in fig. 1, 23, and 24, the noise reduction structure 50 at the air outlet channel 26 includes a second sound absorbing noise reduction structure 50f. The second sound absorbing and reducing structure 50f includes a sound absorbing structure 58 disposed at the air outlet passage 26, that is, the sound absorbing structure 58 may be disposed in the air outlet passage 26 or may be disposed at a side wall of the air outlet passage 26. The sound absorbing structure 58 is used to absorb noise generated when the air outlet 22 is out of the air or in the air outlet passage 26. The air outlet passage 26 may be a passage formed by a gap between the recovery device 30 and the main body 60, may be a passage formed inside the main body 60 to discharge the air of the suction device 20, or may be a passage formed by a side wall of the recovery device 30 to discharge the air of the suction device 20. In this embodiment, the sound absorbing structure 58 is disposed at the air outlet channel 26, and the sound absorbing structure 58 may be a microporous or micro-slit sound absorbing structure, so that the sound energy is consumed by friction collision in the pores or slits to achieve the sound absorbing effect, thereby being capable of absorbing the noise generated when the air outlet 22 is out or in the air outlet channel 26, realizing effective control of the noise, and improving the user experience.

In some embodiments, as shown in fig. 1 and 23, the recovery device 30 has opposite third and fourth ends, with the outlet 32 being provided at the third end and the inlet 31 being provided at the fourth end. The sound absorbing structure 58 is formed at the third end of the recovery device 30, and the second sound insulation and noise reduction structure 50e is located between the sound absorbing structure 58 and the outlet 32, for isolating the outlet 32, the air inlet 21 and the air outlet channel 26, so as to block the air flow at the outlet 32 from entering the air outlet channel 26. In the upright state, the third end is the upper end of the recovery device 30, and the fourth end is the lower end of the recovery device 30. The second sound insulation and noise reduction structure 50e can also block between the sound absorption structure 58 and the outlet 32, that is, isolate the air inlet channel 25 and the air outlet channel 26, and prevent the air flow of the air inlet 21 from directly entering the air outlet channel 26.

In some embodiments, as shown in fig. 23 and 25, the second acoustic isolation and noise reduction structure 50e includes an annular elastomeric seal 57a. The material with higher density is selected, so that the sound insulation effect is better, and the elastic sealing piece 57a can be made of a sealing rubber ring in consideration of cost, and particularly can be made of rubber or silica gel, so that the sound insulation effect is good, the cost is low, and noise generated when the air inlet 21 enters the air can be effectively prevented from being transmitted to the outside.

In some embodiments, as shown in FIG. 25, the width c between the inner edge 571 and the outer edge 572 of the elastomeric seal 57a is 2mm-4mm. In the present embodiment, the higher the thickness, the better the sound insulation effect, and the distance of 2mm to 4mm is designed for the width of the elastic seal 57a, so that noise isolation can be ensured.

In some embodiments, the sound absorbing structure 58 is mounted to the fuselage 60 and/or the recovery device 30 and is provided to the side walls of the air outlet duct 26. As described above, the sound absorbing structure 58 is disposed at the air outlet channel 26, and the position of the sound absorbing structure 58 is related to the forming manner of the air outlet channel 26. Accordingly, the sound absorbing structure 58 may be mounted to the fuselage 60, may be provided to the recovery device 30, and may even be provided with the sound absorbing structure 58 on both the fuselage 60 and the recovery device 30. In this embodiment, the sound absorbing structure 58 is disposed on the side wall of the air outlet channel 26, but not inside the air outlet channel 26, so that the air outlet channel 26 is not occupied, and the wind resistance can be reduced and the noise reduction effect can be improved.

Alternatively, as shown in fig. 1 and 5, the air outlet passage 26 includes a first gap 261 formed between the outer sidewall of the recovery device 30 and the main body 60; the recovery device 30 has opposite third and fourth ends, the outlet 32 of the recovery device 30 being provided at the third end and the inlet 31 being provided at the fourth end. The third end of the recovery device 30 may be divided into an outlet 32 area where the outlet 32 is provided, and the remaining non-outlet 32 area; the outlet 32 of the recovery device 30 communicates with the intake 21 of the suction device 20, and the non-outlet 32 area communicates with the second gap 262 between the bottom 5822 of the suction device 20, the first gap 261 and the second gap 262 forming the outlet air channel 26. The sound absorbing structure 58 may be disposed at the second gap 262 and mounted to the third end of the recovery device 30, or may be disposed at the first gap 261 and mounted to a side wall of the recovery device 30 or a side wall of the body 60.

Optionally, the number of the sound absorbing structures 58 is at least one, and the at least one sound absorbing structure 58 may be disposed on the recovery device 30, on the fuselage 60, on both the recovery device 30 and the fuselage 60, or in both the recovery device 30 and the fuselage 60 and the air outlet passage 26.

Optionally, the number of the sound absorbing structures 58 is at least two, at least two sound absorbing structures 58 may be all disposed on the recovery device 30, all disposed on the main body 60, at least one sound absorbing structure 58 may be disposed on the recovery device 30, another sound absorbing structure 58 may be disposed on the main body 60, one or two of the sound absorbing structures 58 may be disposed in the air outlet passage 26, and the rest of the sound absorbing structures 58 may be disposed on the recovery device 30 and the main body 60.

That is, the sound absorbing structure 58 may be provided at either one or both of the recovery device 30, the main body 60, the air outlet passage 26, or at the same time, and the number of the provided is not limited.

In some embodiments, as shown in fig. 1 and 23-28, the sound absorbing structure 58 includes a sound absorbing plate 581 and a groove 582, the groove 582 may be formed on the recovery device 30 (as shown in fig. 1, 23 and 24), the sound absorbing structure 581 may be formed on the machine body 60 (the sound absorbing structure 58 is formed on the machine body and is not shown in the embodiment of the machine body), the groove 582 and the sound absorbing plate 581 enclose a sound absorbing cavity 583, and a plurality of sound absorbing holes 5811 are formed in the sound absorbing plate 581 (as shown in fig. 27 and 28), and the sound absorbing cavity 583 communicates with the air outlet channel 26 through the sound absorbing holes 5811. In this embodiment, the recess 582 forms an opening 5821 (as shown in fig. 28), and the recess 582 can utilize the space of the recess 582 of the recycling device 30 (as shown in fig. 5, 23, 25 and 26) or the body 60 itself, and the sound absorbing plate 581 is used to cover the opening 5821 of the recess 582 to form the sound absorbing cavity 583 and further form the sound absorbing structure 58, so that not only can effective noise elimination be achieved, noise can be reduced, but also space can be reasonably utilized, and the increase of space and the increase of product volume can be avoided.

In some embodiments, the plurality of sound absorbing holes 5811 on the sound absorbing panel 581 may be micro-holes and/or micro-slots. That is, the sound absorbing panel 581 may employ a micro-hole plate or a micro-slit plate, or a plate having both micro-holes and micro-slits. The sound absorbing plate 581 and the groove 582 are matched to form a micro-pore sound absorber or a micro-slit sound absorber or a mixed sound absorber, and the sound absorbing effect is realized by utilizing the sound absorber.

In other embodiments, the sound absorbing structure 58, i.e., the sound absorbing cavity 583, may also be filled with a sound absorbing material, such as a porous sound absorbing material, to enhance the sound absorbing effect.

It is appreciated that the sound absorbing structure 58 may employ a combination of at least two of micro perforated sound absorber, micro slit sound absorber, porous sound absorbing material to enhance sound damping.

In some embodiments, as shown in fig. 26 and 28, the recess 582 has an opening 5821 and a bottom 5822 opposite the opening 5821, and the sound absorbing panel 581 covers the opening 5821. The distance between the sound absorbing panel 581 and the bottom 5822 may be 5mm-20mm. In this embodiment, the distance between the sound absorbing plate 581 and the bottom 5822 of the groove 582 is designed to be greater than 5mm, generally in the range of 5mm-20mm, so that the space of the recovery device 30 is not occupied too much on the basis of effective sound absorption, and the capacity of the recovery device 30 is not affected or the volume of the machine body 60 is not occupied too much. Of course, in other embodiments, the distance between the sound absorbing plate 581 and the bottom 5822 of the recess 582 may be designed deeper, if conditions allow.

In some embodiments, as shown in FIG. 28, the bottom 5822 of the recess 582 includes a plurality of floors, each of which is a different distance from the acoustic panel 581. In this embodiment, in order to effectively increase the sound absorption frequency bandwidth, the sound absorption chamber 583 may be set to a space with various heights, that is, distances between the respective bottom surfaces and the sound absorption plate 581 are different, and an irregular space in the recycling device 30 may be adapted. Illustratively, the recess 582 has three, four, or five floors. Different heights can eliminate noise of different frequencies, and therefore, the space for arranging the plurality of heights can improve the sound absorption frequency bandwidth.

In some embodiments, as shown in fig. 28, the plurality of bottom surfaces includes a first bottom surface 58221 and a second bottom surface 58222, the distance between the first bottom surface 58221 and the sound absorbing panel 581 being a fifth distance e, the distance between the second bottom surface 58222 and the sound absorbing panel 581 being a sixth distance f, the fifth distance e being greater than the sixth distance f. In this embodiment, in order to effectively increase the sound absorption frequency bandwidth, the heights of the fifth distance e and the sixth distance f are designed to be different. Such a design also can adapt to irregular spaces on the left and right sides of the recovery device 30 and can promote the sound absorption frequency bandwidth.

In some embodiments, as shown in fig. 27 and 28, the sound absorbing plate 581 is provided with a plurality of sound absorbing holes 5811, the sound absorbing cavity 583 communicates with the air outlet passage 26 through the sound absorbing holes 5811, the sound absorbing holes 5811 are circular holes, and the aperture of the sound absorbing holes 5811 is less than 1mm. In this embodiment, the setting of the round hole is convenient to process, and the aperture of the sound absorbing hole 5811 is set to be smaller than 1mm, so that good high-frequency sound absorbing performance can be ensured.

In some embodiments, as shown in fig. 27 and 28, the sound absorbing plate 581 is provided with a plurality of sound absorbing holes 5811, and the sound absorbing chamber 583 communicates with the air outlet passage 26 through the sound absorbing holes 5811, and the aperture ratio of the sound absorbing holes 5811 on the sound absorbing plate 581 is 1% -10%. In the present embodiment, the opening ratio, that is, the area of the sound absorbing holes 5811 is occupied by the area of the sound absorbing plate 581, and the opening ratio of the sound absorbing holes 5811 is limited to a range of 1% -10%, so that effective control of noise can be achieved. Illustratively, the aperture ratio of the sound absorbing holes 5811 may be 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, etc., capable of satisfying the sound damping requirement.

In some embodiments, the thickness of sound absorbing panel 581 is 0.1mm-2mm.

The design of the sound absorber is mainly determined with the thickness of the sound absorbing plate 581, the depth of the sound absorbing cavity 583, the aperture diameter of the sound absorbing holes 5811, and the aperture ratio, and effective control of noise can be achieved by the above design.

In some embodiments, the sound absorbing panel 581 faces the air outlet 22. In the present embodiment, the sound absorbing plate 581 is directed to the air outlet 22, which can facilitate the absorption of noise.

Of course, in other embodiments, in order to match the space of the recess 582 of the recovery device 30, the installation of the recovery device 30 is facilitated, and the sound absorbing plate 581 and the air outlet 22 may be arranged in a staggered manner, so long as they are communicated.

In some embodiments, the sound absorbing panel 581 is removably attached to the recess 582. In this embodiment, the sound absorbing panel 581 is detachably designed to facilitate the user to remove the sound absorbing panel 581 to clean the inner space of the sound absorber. Illustratively, the sound absorbing panel 581 may be detachably connected to the recess 582 of the recovery device 30 by magnetic attraction, snap fit, screws, or the like.

In some embodiments, as shown in fig. 1, 23-25, the recovery device 30 has opposite third and fourth ends, the outlet 32 is provided at the third end, the inlet 31 is provided at the fourth end, the third end includes an outlet 32 area where the outlet 32 is provided and the remaining non-outlet 32 area, and the outlet 32 is in sealed communication with the air intake 21 to enable the suction device 20 to suction the interior of the recovery device 30. Wherein the sound absorbing structure 58 is formed in a region other than the outlet 32. In the upright state, the third end is the upper end of the recovery device 30, and the fourth end is the lower end of the recovery device 30. Typically the suction device 20, i.e. the air intake 21 of the fan 24, will be dimensioned smaller, whereas the cross-sectional area of the recovery device 30 will be dimensioned larger in order to ensure the storage capacity of the recovery device 30 itself; at this time, in order to conveniently provide a sealing structure to seal the outlet 32 of the recovery device 30 and the air inlet 21 of the suction device 20, the outlet 32 of the recovery device 30 is generally provided with a smaller cross-sectional area than the end face of the third end of the recovery device 30, thereby creating the remaining non-outlet 32 area at the third end (upper end) of the recovery device 30. The sound absorbing structure 58 is provided in the non-outlet 32 area, so that the remaining space at the upper end of the recovery device 30 can be effectively utilized, and noise can be reduced while the effective volume of the recovery device 30 is ensured.

As shown in fig. 1, 5, and 23-25, the number of the sound absorbing structures 58 is two, and two sound absorbing structures 58 are formed at the third end of the recovery device 30 and are located at the left and right sides of the outlet 32, respectively. In this embodiment, when the recovery device 30 is mounted on the body 60, a portion of the sidewall of the recovery device 30 faces the body 60 and forms a first gap 261 with the body 60. The top (third end) of the recovery device 30 is opposite to the bottom 5822 of the suction device 20, at this time, the outlet 32 is in butt joint with the air inlet 21 of the suction device 20, a second gap 262 is formed between the remaining non-outlet 32 area of the third end of the recovery device 30 and the bottom 5822 of the suction device 20, the second gap 262 is separated from the air inlet 21 and is communicated with the first gap 261, and by providing two sound absorbing structures 58, not only the sound absorbing efficiency can be improved, but also the remaining space on the left and right sides of the non-outlet 32 area, i.e., the outlet 32 area, at the upper end of the recovery device 30 can be effectively utilized.

Optionally, as shown in fig. 23-25, the recovery device 30 further includes a filter element 40, where the filter element 40 is disposed at the outlet 32, for filtering the solid particulate matter and the water vapor in the airflow, so as to avoid the solid particulate matter and the water vapor from entering the suction device 20. In this embodiment, the filter element 40 may be a hepa, and the second sound insulation and noise reduction structure 50e is enclosed by the filter element 40 and is blocked between the sound absorption structure 58 and the filter element 40.

In some embodiments, the first sound-absorbing and noise-reducing structure 50d at the suction device 20 may be the same as the second sound-absorbing and noise-reducing structure 50f, that is, the first sound-absorbing and noise-reducing structure 50d may also employ the sound-absorbing structure 58, and as illustrated in fig. 27 and 28, the sound-absorbing structure 58 of the first sound-absorbing and noise-reducing structure 50d includes a sound-absorbing plate 581 and a groove 582 formed in the housing 23, the sound-absorbing plate 581 covers the opening 5821 of the groove 582, the groove 582 surrounds the sound-absorbing plate 581 to form a sound-absorbing cavity 583, and a plurality of sound-absorbing holes 5811 are formed in the sound-absorbing plate 581. In this embodiment, the opening 5821 of the groove 582 is covered by the sound absorbing plate 581 to form the sound absorbing cavity 583, so as to form the first sound absorbing and noise reducing structure 50d, which not only can realize effective noise elimination and noise reduction, but also can reasonably utilize the space, and avoid increasing the space and increasing the volume of the product.

Alternatively, the plurality of sound absorbing holes 5811 on the sound absorbing panel 581 of the first sound absorbing and reducing structure 50d may be micro-holes and/or micro-slits. That is, the sound absorbing panel 581 may employ a micro-hole plate or a micro-slit plate, or a plate having both micro-holes and micro-slits. The sound absorbing plate 581 and the groove 582 are matched to form a micro-pore sound absorber or a micro-slit sound absorber or a mixed sound absorber, and the sound absorbing effect is realized by utilizing the sound absorber.

In other embodiments, the sound absorbing cavity 583 of the first sound absorbing and reducing structure 50d may be filled with a sound absorbing material, such as a porous sound absorbing material, to enhance the sound absorbing effect.

It will be appreciated that the first sound absorbing and reducing structure 50d may employ a combination of at least two of a micro perforated sound absorber, a micro slit sound absorber, a porous sound absorbing material to enhance the sound damping effect.

Those skilled in the art may combine and combine the features of the different embodiments or examples described in this specification and of the different embodiments or examples without contradiction.

While the application has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the application. Therefore, the protection scope of the application is subject to the protection scope of the claims.

Claims

1. A cleaning device comprising a body and a cleaning element mounted to the body:

2. The cleaning apparatus defined in claim 1, wherein the suction device comprises a housing connected to the main body and a blower, the housing comprising a mounting cavity, the blower being disposed in the mounting cavity;

the noise reduction structure at the suction device comprises at least one of a vibration noise reduction structure, a first sound insulation noise reduction structure and a first sound absorption noise reduction structure.

3. The cleaning apparatus defined in claim 2, wherein the vibration and noise reduction structure comprises:

the elastic piece is connected with the shell and the fan;

and an avoidance space for the vibration of the fan is arranged between the fan and the shell in at least one direction of the vibration direction of the fan.

4. A cleaning device as claimed in claim 3, wherein the blower is suspended from the mounting cavity solely by the resilient member; and/or the number of the groups of groups,

the elastic piece is in a stretching state at least when the fan vibrates; and/or the number of the groups of groups,

a gap is formed between the housing and the fan in a direction perpendicular to the vibration direction; and/or the number of the groups of groups,

the elastic piece is an elastic strip, and the number of the elastic strips is greater than or equal to two in the circumferential direction of the fan.

5. The cleaning apparatus defined in claim 2, wherein the housing comprises at least two sub-housings, at least two of the sub-housings surrounding the fan and being sequentially disposed in a wrapped manner from inside to outside to form the first sound-insulating and noise-reducing structure, a gap being provided between adjacent two of the sub-housings, the sub-housings located at an innermost layer forming the mounting cavity.

6. The cleaning apparatus defined in claim 1, wherein the noise reduction structure at the air intake channel comprises a second sound and noise reduction structure comprising at least one layer of sound insulation walls disposed about the outlet and the air intake.

7. The cleaning apparatus defined in claim 6, wherein the at least one interior-most acoustic wall defines the air intake channel.

8. The cleaning apparatus defined in claim 1, wherein the noise reduction structure at the air outlet channel comprises a second sound absorbing and noise reduction structure comprising a sound absorbing structure disposed at the air outlet channel.

9. The cleaning apparatus defined in claim 8, wherein the sound absorption structure is mounted to the main body and/or the recovery device and is provided at a side wall of the air outlet passage.

10. The cleaning apparatus defined in claim 1, wherein the noise reducing structure at the cleaning device comprises a vibration reducing structure, the cleaning device further comprises a bottom shell, the driving mechanism and the cleaning portion are mounted on the bottom shell, the driving mechanism comprises a driving member and a transmission assembly connected to the driving member, the transmission assembly is connected to the cleaning portion, and the driving member is used for driving the transmission assembly to rotate the cleaning portion;

Wherein, the damping structure includes:

the first vibration reduction structure is arranged at the joint between the driving piece and the bottom shell; and/or the number of the groups of groups,

the second vibration reduction structure is arranged at the joint between the transmission assembly and the bottom shell; and/or the number of the groups of groups,

and the third vibration reduction structure is arranged at the joint of the cleaning part and the transmission assembly.