A fan vibration damping component and a household appliance

Abstract

The present application provides a fan damping assembly and a household appliance. The fan damping assembly includes an annular fan protection cover and an annular elastic support pad. The elastic support pad can be filled between the fan and the fan protection cover in an interference fit manner. An installation mechanism is provided on the outer wall of the fan protection cover for fixedly installing the fan damping assembly and the fan in a suspended manner inside the housing of the household appliance. Through this fan damping assembly, the fan can be fixedly arranged therein, and the elastic support pad plays a shock-absorbing effect, reducing the transmission of fan vibration and weakening noise.

Description

Technical Field

[0001] The present invention relates to the field of power components, and more particularly to a fan damping assembly and a household appliance. Background Art

[0002] With the development of society and the continuous improvement of people's living standards, vacuum cleaners, as a kind of household cleaning appliances, have been used in more and more families. A vacuum cleaner is a device that uses a fan to drive the blades to rotate at a high speed, generates a negative air pressure in a sealed housing, and sucks up dust and garbage. When choosing a vacuum cleaner, consumers tend to prefer vacuum cleaners with high power, high speed, and large suction. However, the noise problems brought by high power and high speed are becoming more and more prominent. In addition, currently, the fan of a vacuum cleaner is mainly installed inside the housing of the vacuum cleaner through a machine base or a fan cover. Since the fan is in hard contact with the machine base or the fan cover, the vibration of the fan will be amplified during use, generating relatively large noise. The vibration and noise generated by the operation of the fan in the vacuum cleaner greatly reduce the user experience and urgently need to be solved. Summary of the Invention

[0003] In view of the above problems in the prior art, the present application provides a fan damping assembly and a household appliance. By fixedly arranging the fan in the fan damping assembly, the elastic support pad plays a shock-absorbing effect, and they are suspended in the housing of the household appliance to reduce the transmission of the fan vibration and weaken the noise.

[0004] In a first aspect, the present application provides a fan damping assembly, including an annular fan protection cover and an annular elastic support pad. The elastic support pad can be filled between the fan and the fan protection cover in an interference fit manner. An installation mechanism is arranged on the outer wall of the fan protection cover for fixedly installing the fan damping assembly and the fan in a suspended manner inside the housing of the household appliance. Through this fan damping assembly, the fan can be fixedly arranged therein, the elastic support pad plays a shock-absorbing effect, reduces the transmission of the fan vibration, and weakens the noise.

[0005] In a possible implementation manner of the first aspect, a plurality of axially extending protrusions are uniformly arranged on the inner wall of the elastic support pad in the circumferential direction. Air columns are formed between adjacent protrusions. The plurality of protrusions can achieve an interference fit with the outer wall of the fan. Through this implementation manner, on the one hand, the fan is fixed inside the elastic support pad by the plurality of protrusions, and on the other hand, the air columns reduce the contact area between the elastic support pad and the outer wall of the fan housing, weaken the transmission of the fan vibration, and at the same time improve the heat dissipation of the fan.

[0006] In a possible implementation of the first aspect, a plurality of dovetail tails extending in the radial direction are uniformly provided on the outer wall of the elastic support pad in the circumferential direction, and a plurality of dovetail grooves extending in the radial direction are uniformly provided on the inner wall of the blower protection cover in the circumferential direction. The dovetail tails and the dovetail rubs gradually widen in the radially outward direction, and the plurality of dovetail tails are engaged with the plurality of dovetail grooves in a one-to-one correspondence. Through this implementation, the dovetail structure prevents the blower from displacing in the radial direction.

[0007] In a possible implementation of the first aspect, the dovetail tails and the dovetail grooves each have a plurality of semi-cylindrical holes extending in the axial direction at the joint interface to form a plurality of cylindrical holes at the joint interface, and a cured adhesive is filled in the cylindrical holes. Through this implementation, the elastic support pad and the blower protection cover are firmly bonded together, so that the blower can be further fixedly arranged in the blower vibration damping assembly.

[0008] In a possible implementation of the first aspect, a baffle extending in the radial direction is provided on the bottom of the blower protection cover in the circumferential direction to prevent the adhesive from overflowing and falling. Through this implementation, on the one hand, it can prevent the fluid adhesive from overflowing when pouring the fluid adhesive, and on the other hand, it can prevent the cured adhesive column from falling out of the cylindrical hole due to vibration during the operation of the blower.

[0009] In a possible implementation of the first aspect, the mounting structure is at least one mounting stud.

[0010] In a possible implementation of the first aspect, the elastic support pad is made of rubber.

[0011] In a possible implementation of the first aspect, the blower protection cover is made of aluminum alloy or magnesium alloy.

[0012] In the second aspect, the present application further provides a household appliance, which includes a blower and the blower vibration damping assembly as described in any one of the first aspect and its possible implementations. Among them, the elastic support pad is filled between the blower and the blower protection cover in an interference fit manner to fix the blower, and the blower is fixedly arranged in the housing of the household appliance in a suspended manner through the mounting structure.

[0013] In a possible implementation of the second aspect, the household appliance is a vacuum cleaner or a floor sweeping robot.

[0014] The blower vibration damping assembly and the household appliance proposed in the present application, compared with the prior art, by fixedly arranging the blower in the blower vibration damping assembly, the elastic support pad plays a shock absorption effect, and they are suspended in the housing of the household appliance, reducing the transmission of blower vibration, weakening the noise, and improving the user experience.

[0015] The above technical features can be combined in various suitable ways or replaced by equivalent technical features as long as the object of the present invention can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Hereinafter, the present invention will be described in more detail based on embodiments with reference to the drawings, wherein:

[0017] Figure 1 shows a schematic structural view of a fan vibration damping assembly according to an embodiment of the present invention;

[0018] Figure 2 and Figure 3 respectively show a front view and a three-dimensional view of an elastic support pad according to an embodiment of the present invention;

[0019] Figure 4 and Figure 5 respectively show a front view and a three-dimensional view of a fan protection cover according to an embodiment of the present invention;

[0020] Figure 6 shows an assembly schematic view of a fan and a fan vibration damping assembly according to an embodiment of the present invention.

[0021] In the drawings, the same components are denoted by the same reference numerals. The drawings are not drawn to actual scale.

[0022] LIST OF REFERENCE NUMERALS:

[0023] 100 - fan vibration damping assembly; 110 - elastic support pad; 111 - protrusion; 112 - air column; 113 - swallowtail part; 114 - semi-cylindrical hole of swallowtail part; 120 - fan protection cover; 121 - mounting mechanism; 122 - protection cover cavity; 123 - dovetail groove; 124 - semi-cylindrical hole of dovetail groove; 125 - baffle; 200 - fan; 210 - fan housing; 300 - cylindrical hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The present invention will be further described below with reference to the drawings.

[0025] Figure 1 is a schematic structural view of the fan vibration damping assembly 100 provided in the present application. As Figure 1 shown, the fan vibration damping assembly 100 includes an elastic support pad 110 and a fan protection cover 120, and both the elastic support pad 110 and the fan protection cover 120 are generally annular. The elastic support pad 110 is fixedly accommodated in the protection cover cavity 122 of the fan protection cover 120; in the use state, the inner wall of the elastic support pad 110 can be in contact with the fan 200 ([[]] Figure 6)An interference fit is used to fix the fan 200. An installation mechanism 121 is provided on the outer wall of the fan protection cover 120, which can fixedly install the fan vibration damping component 100 (and the fan 200) in a suspended manner inside the housing of the household appliance.

[0026] During the operation of the fan 200, the elastic support pad 110 can effectively absorb part of the vibration and play a shock-absorbing role; in addition, since it is suspended inside the electrical appliance housing, the fan 200 only contacts the elastic support pad 110 and does not contact other components, weakening the transmission of the fan vibration and reducing the vibration and noise caused by the fan 200 being mechanically installed in the device through metal mounting parts.

[0027] Specifically, as Figure 2 and Figure 3 shown, after the elastic support pad 110 is uniformly arranged in the circumferential direction, a plurality of protrusions 111 are provided. The height of the plurality of protrusions 111 is configured such that the protrusions 111 can achieve an interference fit with the outer wall of the fan housing 210 of the fan 200. Preferably, the top surface of the protrusion 111 facing the center of the ring preferably has the same curvature as the outer wall of the fan 200 so as to make more sufficient contact with the fan housing 210. The protrusion 111 extends along the axial direction, and an air column 112 is formed between adjacent protrusions 111. By means of these air columns 112, the contact area between the elastic support pad 110 and the outer wall of the fan housing 210 is reduced, weakening the transmission of the fan vibration and at the same time improving the heat dissipation of the fan.

[0028] In order to realize the fastening of the fan vibration damping component 100 to the fan 200, in the embodiments provided herein, the elastic support pad 110 and the electrical appliance protection cover 120 can be joined by a dovetail structure, and the dovetail mechanism also extends along the axial direction. Specifically, as Figures 2 - 5 shown, a plurality of dovetail parts 113 are uniformly arranged on the elastic support pad 110 in the circumferential direction, and at the same time, a plurality of dovetail grooves 123 are uniformly opened on the fan protection cover 120 in the circumferential direction. The plurality of dovetail parts 113 and the plurality of dovetail grooves 123 are in corresponding positions and equal in number, and a dovetail structure is formed through their cooperation (engagement). Through this dovetail structure, the movement of the fan 200 in the radial direction can be restricted.

[0029] Optionally, the dovetail part 113 is a structure extending outward from the body of the elastic support pad 110, and it gradually widens along the radially outward direction; correspondingly, the dovetail groove 114 is a structure extending outward from the body (protection cover cavity) of the fan protection cover 120, and it gradually widens along the radially outward direction.

[0030] Optionally, the tail part 113 of the swallowtail and the body of the elastic support pad 110 can be independent components or integrally constructed; similarly, the dovetail groove 123 and the body of the fan protection cover 120 can be independent components or integrally constructed.

[0031] As Figures 1 - 5 shown, the fan vibration damping assembly 100 has 4 dovetail mechanisms, which are evenly distributed along its circumferential direction.

[0032] Further preferably, as Figure 1 and Figure 6 shown, the dovetail mechanism has at least one cylindrical hole 300, and the cylindrical hole 300 can be formed by splicing semi-cylindrical holes respectively opened on the elastic support pad 110 and the fan protection cover 120; an adhesive can be poured into the cylindrical hole 300, and after curing and forming, an adhesive column is formed.

[0033] Specifically, as Figures 2 to 5 shown, at least one swallowtail semi-cylindrical hole 114 is opened at the interface where the tail part 113 of the elastic support 110 is joined to the fan protection cover 120. Correspondingly, at least one dovetail groove semi-cylindrical hole 124 is opened at the inner wall interface of the dovetail groove 140 of the fan protection cover 120 where it is joined to the elastic support 110. The swallowtail semi-cylindrical hole 114 and the dovetail groove semi-cylindrical hole 124 have the same size, opposite positions and the same number, so that when the elastic support pad 110 is accommodated in the protection cover cavity 122 of the fan protection cover 120, the swallowtail semi-cylindrical hole 114 and the opposite dovetail groove semi-cylindrical hole 124 are spliced to form a cylindrical hole. By forming an adhesive column in this cylindrical hole, the elastic support pad 110 and the fan protection cover 120 can be more firmly combined together, so that the fan 200 cannot generate displacement in the radial and axial directions. The reliability of the fan vibration damping assembly 100 is enhanced.

[0034] It should be understood that the column holes for filling the adhesive can be other shapes than cylindrical holes, such as square column holes, diamond column holes or elliptical column holes.

[0035] Preferably, the at least one cylindrical hole 300 can also be distributed along the circumferential direction of the fan vibration assembly 100, rather than just distributed in the dovetail mechanism as mentioned in this article. Pouring the adhesive into the circumferentially arranged cylindrical holes 300 can more firmly combine the elastic support pad 110 and the fan protection sleeve 120 and improve the structural strength.

[0036] In another embodiment, as Figure 4 and Figure 5As shown, a baffle 125 can be provided at the bottom of the fan protective cover 120. The baffle 125 extends uniformly and continuously along the circumferential direction of the fan protective cover 120, and the baffle 125 is perpendicular to the body of the fan protective cover 120. On the one hand, it can prevent the adhesive from overflowing when injecting the adhesive into the cylindrical hole, and on the other hand, it can also prevent the cured adhesive column from falling out of the cylindrical hole due to vibration during the operation of the fan.

[0037] When assembling the fan vibration damping assembly 100, the elastic support pad 110 can be pushed into the baffle 125 from one side of the fan protective cover 120, that is, the swallowtail part 114 is pushed into the dovetail groove 124 towards the baffle 125. In this case, the axial length of the fan protective cover 120 is equal to the sum of the axial length of the elastic support pad 110 and the axial length of the baffle 125, and the length of the elastic support pad 110 can be determined according to the size and weight of the fan.

[0038] As described above, an installation mechanism 121 is provided on the outer wall of the fan protective cover 120. In the preferred embodiment of the present application, the installation mechanism 121 is at least one installation stud ( Figures 4 - 6 ) provided on the outer wall. Through the installation stud, the fan vibration damping assembly 100 in which the fan 200 is fixed can be fixedly installed in a suspended manner inside the housing of a household appliance (such as a vacuum cleaner, etc.). With this structure, the entire fan 200 only contacts the elastic support pad 110, and the fan is suspended in the electrical appliance housing, effectively weakening the transmission of fan vibration and reducing the noise of the electrical appliance.

[0039] In the preferred embodiment, the elastic support pad 110 can be made of an elastic material, such as rubber; the fan protective cover 120 can be made of aluminum alloy, magnesium alloy or high-strength plastic, and has the characteristics of being light and strong.

[0040] The fan vibration damping assembly 100 provided in the present application can be applied to various types of household appliances together with the fan 200, such as a vacuum cleaner or a floor sweeping robot.

[0041] The fan vibration damping assembly and the household appliance proposed in the present application fix the fan in the fan vibration damping assembly through the elastic support pad, which has a shock absorption effect, and suspend them in the housing of the household appliance, reducing the transmission of fan vibration, weakening the noise, and improving the user experience.

[0042] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0043] Although the present invention has been described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed, as long as they do not depart from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the different dependent claims and the features described herein can be combined in a manner different from that described in the original claims. It should also be understood that the features described in connection with a single embodiment can be used in other described embodiments.

Claims

1. A fan vibration damping component, characterized in that, it includes an annular fan protection cover and an annular elastic support pad. The elastic support pad can be filled between the fan and the fan protection cover in an interference fit manner. An installation mechanism is provided on the outer wall of the fan protection cover for suspending and fixedly installing the fan assembly composed of the fan vibration damping component and the fan inside the housing of the household appliance; a plurality of protrusions extending along the axial direction are evenly arranged on the inner wall of the elastic support pad in the circumferential direction, and air columns are formed between adjacent protrusions. The plurality of protrusions can achieve an interference fit with the outer wall of the fan; a plurality of tail fin parts extending along the radial direction are evenly arranged on the outer wall of the elastic support pad in the circumferential direction, and a plurality of dovetail grooves extending along the radial direction are evenly arranged on the inner wall of the fan protection cover in the circumferential direction. The tail fin parts and the dovetail grooves gradually become wider along the radially outward direction, and the plurality of tail fin parts are engaged with the plurality of dovetail grooves one by one; the tail fin parts and the dovetail grooves each have a plurality of semi-cylindrical holes extending along the axial direction at the joint interface to form a plurality of cylindrical holes at the joint interface, and a cured adhesive is filled in the cylindrical holes; a baffle extending along the radial direction is arranged on the bottom of the fan protection cover in the circumferential direction to prevent the adhesive from overflowing and falling, and the baffle is perpendicular to the main body of the fan protection cover.

2. The fan vibration damping component according to claim 1, characterized in that, the installation mechanism is at least one installation stud.

3. The fan vibration damping component according to claim 1, characterized in that, the elastic support pad is made of rubber.

4. The fan vibration damping component according to claim 1, characterized in that, the fan protection cover is made of aluminum alloy or magnesium alloy.

5. A household appliance, characterized in that, it includes a fan and the fan vibration damping component according to any one of claims 1 to 4. Among them, the elastic support pad is filled between the fan and the fan protection cover in an interference fit manner to fix the fan, and the fan is fixedly arranged in the housing of the household appliance in a suspended manner through the installation mechanism.

6. The household appliance according to claim 5, characterized in that, the household appliance is a vacuum cleaner or a floor sweeping robot.

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