Fan assembly and dust collector having the same

Abstract

The present invention provides a fan assembly and a vacuum cleaner having the same, wherein the fan assembly comprises: a housing having a receiving chamber and an extension channel, the extension channel being located below the receiving chamber, an air inlet and an air outlet being arranged on the housing, the air inlet being connected to the receiving chamber, the extension channel being connected to the receiving chamber and the air outlet; a fan unit being arranged in the receiving chamber, the inlet of the fan unit being arranged corresponding to the air inlet, wherein the airflow flowing out of the outlet of the fan unit is discharged to the outside of the housing through the extension channel and the air outlet. The technical solution of the present invention effectively solves the problem of high noise of vacuum cleaners in the prior art.

Description

Technical Field

[0001] The present invention relates to the field of small household appliances, and in particular to a fan assembly and a vacuum cleaner having the same. Background Art

[0002] A vacuum cleaner is a dust removal device that is often used for indoor cleaning. It is mainly used to clean the floor, carpets, furniture, curtains, and dust in narrow corners. The working principle of a vacuum cleaner is to use an electric motor to drive the fan to rotate at high speed, generating negative pressure to form air flow and pressure difference, and using the pressure difference and airflow to suck garbage or dust into the dust collection structure of the vacuum cleaner, thereby achieving dust removal.

[0003] In real life, vacuum cleaners have become one of the main cleaning appliances used by many families due to their labor-saving and high efficiency. However, in actual use, vacuum cleaners currently on the market have the problem of high noise, which can easily cause noise pollution to the home environment, damage the physical and mental health of consumers, and reduce the user experience. Summary of the invention

[0004] The present invention aims to provide a fan assembly and a vacuum cleaner having the same, so as to solve the problem of high noise of the vacuum cleaner in the prior art.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a fan assembly is provided, including: a shell, having a accommodating cavity and an extension channel, the extension channel is located below the accommodating cavity, an air intake port and an air outlet are arranged on the shell, the air intake port is connected with the accommodating cavity, and the extension channel connects the accommodating cavity and the air outlet; a fan part is arranged in the accommodating cavity, the inlet of the fan part is arranged corresponding to the air intake port, wherein the airflow flowing out from the outlet of the fan part is discharged to the outside of the shell through the extension channel and the air outlet.

[0006] Furthermore, a partition is provided in the extension channel, and the partition divides the extension channel into a plurality of flow channels in the air outlet direction.

[0007] Further, an extending direction of the partition is parallel to an extending direction of the axis of the fan unit.

[0008] Furthermore, the shell includes a first soundproof cover and a second soundproof cover located below the first soundproof cover, the first soundproof cover and the second soundproof cover are connected to each other to form a accommodating cavity, the air intake is arranged on the first soundproof cover, and the air outlet, the extension channel and the partition are all arranged on the second soundproof cover.

[0009] Furthermore, the second soundproof cover includes an upper soundproof cover, a lower soundproof cover and a partition, the upper soundproof cover, the partition and the first soundproof cover form a accommodating cavity, and a connecting hole connecting the accommodating cavity and the extended channel is opened on the partition.

[0010] Furthermore, the bottom wall of the lower soundproof cover includes an arc-shaped wall corresponding to the connecting hole and a straight wall connected to the arc-shaped wall, and the side wall of the lower soundproof cover is connected to the bottom wall and the partition of the lower soundproof cover, and the bottom wall of the lower soundproof cover, the side wall of the lower soundproof cover and the partition form an extended channel.

[0011] Furthermore, a buffer is arranged between the shell and the fan part, and the buffer includes a first buffer arranged between the top wall of the shell and the top of the fan part and a second buffer arranged between the bottom wall of the shell and the bottom of the fan part.

[0012] Furthermore, there are a plurality of second buffer members and they are arranged above the partition, there are a plurality of partition members and they are arranged below the partition, and the second buffer members and the partition members are arranged in a one-to-one correspondence so that the partition members support the second buffer members.

[0013] Furthermore, the center line of the second buffer is located in the center plane of the partition.

[0014] Furthermore, the width of the extended channel along the direction perpendicular to the airflow direction is equal to the width of the accommodating cavity.

[0015] According to another aspect of the present invention, a vacuum cleaner is provided, comprising a fan assembly, wherein the fan assembly is the above-mentioned fan assembly.

[0016] According to the technical solution of the present invention, the fan unit is arranged in the housing, and the inlet of the fan unit is arranged corresponding to the air inlet of the housing, so that the gas enters the fan unit from the air inlet, and then flows out from the outlet of the fan unit, and is discharged from the housing through the extended channel and the air outlet. The extended channel lengthens the path of the air from the outlet of the fan unit to the air outlet of the housing, reduces the kinetic energy of the air in the path, and then reduces the noise generated by the air, achieving a noise reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic structural diagram of an embodiment of a fan assembly according to the present invention is shown;

[0019] Figure 2 Shows Figure 1 A schematic cross-sectional view of a fan assembly;

[0020] Figure 3 Shows Figure 2 A schematic diagram of the AA-direction cross-sectional structure of the fan assembly;

[0021] Figure 4 Shows Figure 1A schematic diagram of the breakdown structure of

[0022] Figure 5 Shows Figure 4 A schematic diagram of the top structure of the second shell.

[0023] The above drawings include the following reference numerals:

[0024] 10. Shell; 11. Air inlet; 12. Air outlet; 13. Extension channel; 14. Partition; 15. First soundproof cover; 16. Second soundproof cover; 161. Upper soundproof cover; 162. Lower soundproof cover; 1621. Arc wall; 1622. Straight wall; 163. Partition; 164. Connecting hole; 20. Fan unit; 30. Buffer; 31. First buffer; 32. Second buffer. DETAILED DESCRIPTION

[0025] The technical solution of the present application is mainly used in the field of small household appliances, especially in household vacuum cleaners. The main principle of the vacuum cleaner is that the fan impeller of the vacuum cleaner is driven at high speed by the motor to quickly discharge the air in the impeller from the outlet of the fan, and at the same time continuously inhale air from the inlet of the fan to replenish the fan, thereby forming a large pressure difference. The above effect is used to generate negative air pressure in the sealed shell to absorb garbage, dust, debris, etc., and finally the garbage, dust, debris and other dirt are separated from the air through the filter, and the dirt is collected in the dust collection tube.

[0026] Since the fan needs to rotate continuously at high speed during the operation of the vacuum cleaner, it will produce violent vibrations, which will in turn generate loud noise; at the same time, the air will quickly pass through the fan and the body of the vacuum cleaner, which will also generate certain noise. At present, vacuum cleaners on the market all use the method of directly setting the fan in the vacuum cleaner, so that the vibration generated by the fan during operation is directly transmitted to the body of the vacuum cleaner; the outlet of the fan is also directly connected to the air outlet of the body, and the noise generated is not effectively reduced and is directly released to the outside of the vacuum cleaner, which causes noise pollution to a certain extent and affects the user experience when using it. In view of the above problems, this application has made improvements to the fan part of the vacuum cleaner.

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0029] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0030] Figure 1 A schematic structural diagram of an embodiment of a fan assembly according to the present invention is shown; Figure 2 Shows Figure 1 The cross-sectional structure diagram of the fan assembly is shown in FIG. Figure 1 and Figure 2 As shown, the fan assembly of this embodiment includes a housing 10 and a fan unit 20. The housing 10 has a receiving cavity and an extension channel 13, the extension channel 13 is located below the receiving cavity, and the housing 10 is provided with an air inlet 11 and an air outlet 12, the air inlet 11 is connected to the receiving cavity, and the extension channel 13 is connected to the receiving cavity and the air outlet 12. The fan unit 20 is arranged in the receiving cavity, and the inlet of the fan unit 20 is arranged corresponding to the air inlet 11, wherein the airflow flowing out of the outlet of the fan unit 20 is discharged to the outside of the housing 10 through the extension channel 13 and the air outlet 12.

[0031] By applying the technical solution of this embodiment, the fan unit 20 is arranged in the housing 10, and the inlet of the fan unit 20 is arranged corresponding to the air inlet 11 of the housing, so that the gas enters the fan unit 20 from the air inlet 11, and then the gas flows out from the outlet of the fan unit 20, and is discharged from the housing 10 through the extended channel 13 and the air outlet 12. The extended channel 13 lengthens the path of the air from the outlet of the fan unit 20 to the air outlet 12 of the housing 10, reduces the kinetic energy of the air in the path, and then reduces the noise generated by the air, which has a noise reduction effect.

[0032] Further, Figure 3 Shows Figure 2 A schematic diagram of the AA-direction cross-sectional structure of the fan assembly; Figure 4 Shows Figure 1 Schematic diagram of the decomposition structure. Figures 1 to 4 The extended channel 13 is also provided with a partition 14, which divides the extended channel 13 into a plurality of flow channels in the air outlet direction. After passing through the fan unit 20, the gas will rotate in the accommodating chamber and move irregularly. This irregular movement will enhance the vibration effect of the fan assembly, thereby increasing the noise caused by the fan assembly. The partition 14 guides and rectifies the gas flowing out of the outlet of the fan unit 20, so that the irregularly disturbed airflow in the accommodating chamber becomes stable when passing through the partition 14, thereby reducing the vibration of the gas passing through the flow channel, thereby reducing the noise of the fan assembly.

[0033] Specifically, Figures 1 to 4 As shown, in this embodiment, there are two partitions 14, and the extending direction of the two partitions 14 is parallel to the extending direction of the axis of the fan unit 20. In order to divide the extended channel 13 into a plurality of flow passages, generally, in the case of Figures 1 to 4 From a visual angle, the partition 14 can be arranged in a vertical direction as shown in the figure, or in a horizontal direction. According to the vertical arrangement of the fan unit 20 of this embodiment, the partition 14 of this embodiment is also arranged in a vertical direction, that is, parallel to the axis of the fan unit 20. In this way, the partition 14 can also play the role of a reinforcing rib to support the weight of the fan unit 20.

[0034] Furthermore, if Figures 1 to 4 As shown, the housing 10 of this embodiment includes a first soundproof cover 15 and a second soundproof cover 16 located below the first soundproof cover 15. The first soundproof cover 15 and the second soundproof cover 16 are connected to each other to form a accommodating cavity. The air inlet 11 is arranged on the first soundproof cover 15, and the air outlet 12, the extension channel 13 and the partition 14 are all arranged on the second soundproof cover 16. The housing 10 is divided into the first soundproof cover 15 and the second soundproof cover 16 along the axis of the fan part 20, which is convenient for the installation of the fan part 20 and the molding of the material, and is convenient for absorbing the vibration generated by the fan part 20.

[0035] Specifically, Figure 5 Shows Figure 4 A schematic diagram of the top view of the second shell. Figure 2 , Figure 3 and Figure 5As shown, the second soundproof cover 16 of this embodiment includes an upper soundproof cover 161, a lower soundproof cover 162 and a partition 163. The upper soundproof cover 161, the partition 163 and the first soundproof cover 15 form a receiving chamber, and the partition 163 is provided with a connecting hole 164 connecting the receiving chamber and the extension channel 13. The receiving chamber formed by the upper soundproof cover 161, the partition 163 and the first soundproof cover 15 consumes the vibrating air and noise for the first time, preventing the vibration and sound from being directly transmitted to the vacuum cleaner housing, thereby reducing the impact on the user.

[0036] The structure of the extended channel 13 is as follows Figure 3 As shown, the bottom wall of the lower soundproof cover 162 includes an arcuate wall 1621 corresponding to the connecting hole 164 and a straight wall 1622 connected to the arcuate wall 1621, and the side wall of the lower soundproof cover 162 connects the bottom wall of the lower soundproof cover 162 and the partition 163, and the bottom wall of the lower soundproof cover 162, the side wall of the lower soundproof cover 162 and the partition 163 form an extended channel 13. The extended channel 13 lengthens the path length of the gas flow, increases the energy loss when the gas flows out of the outlet 12, and thus reduces the kinetic energy of the gas flowing out of the fan assembly, thereby achieving a noise reduction effect. By using the partition 163 as part of the extended channel 13, the structural space of the fan assembly is fully utilized, making the fan assembly compact and easy to install. The arcuate wall 1621 enables the airflow to change direction smoothly, avoids the generation of vortices at the corners, increases the airflow disturbance, and thus increases the noise.

[0037] like Figures 2 to 4 As shown, a buffer member 30 is provided between the housing 10 and the fan unit 20, and the buffer member 30 includes a first buffer member 31 provided between the top wall of the housing 10 and the top of the fan unit 20, and a second buffer member 32 provided between the bottom wall of the housing 10 and the bottom of the fan unit 20. The buffer member 30 avoids direct contact between the fan unit 20 and the housing 10, plays a buffering role, and further reduces the vibration of the fan assembly as a whole, and plays a noise reduction effect.

[0038] Specifically, Figures 2 to 4 As shown, in this embodiment, there are two second buffer members 32, and the two second buffer members 32 are arranged above the partition 163, and there are two partition members 14, and the two partition members 14 are arranged below the partition 163. The second buffer members 32 and the partition members 14 are arranged one-to-one so that the partition members 14 support the second buffer members 32. The second buffer members 32 and the partition members 14 are arranged in the same number and one-to-one correspondence so that the weight of the fan unit 20 and the impulse generated by the vibration can be uniformly and consistently transferred to the partition members 14, thereby improving the service life of the fan assembly.

[0039] Specifically, in this embodiment, the center line of the second buffer 32 is located in the center plane of the partition 14. The extension direction of the partition 14 in the airflow direction can be adaptively adjusted according to the actual airflow direction, and the center plane of the partition 14 is arranged through the center line of the second buffer 32 so that the partition 14 passes through the straight line where the center of gravity of the second buffer 32 is located, which can avoid the gravity of the second buffer 32 from generating a torque on the partition 14, thereby ensuring the service life of the fan assembly.

[0040] It should be noted that the number of second buffer members can be changed to ensure the service life of the fan assembly according to the material strength properties, the weight of the fan unit and the size of the impulse generated by vibration. Correspondingly, the number of partitions can be increased or decreased to meet the force relationship.

[0041] Furthermore, if Figures 1 to 5 As shown, the width of the extended channel 13 in the direction perpendicular to the airflow direction of this embodiment is equal to the width of the accommodating cavity. The extended channel 13 in this embodiment fully utilizes the structural dimensions of the accommodating cavity, allowing the airflow to enter the extended channel 13 smoothly, avoiding the situation where the airflow pressure or flow velocity is increased due to the reduction of the passing area of ​​the extended channel 13, thereby causing the noise to increase; at the same time, the width of the extended channel 13 does not exceed the width of the accommodating cavity, making the structure of the fan assembly compact and easy to install.

[0042] The present application also provides a vacuum cleaner, and the vacuum cleaner according to this embodiment (not shown in the figure) includes a fan assembly, and the fan assembly is the above-mentioned fan assembly. The vacuum cleaner of this embodiment has the advantages of good noise reduction effect, low noise, and good user experience.

[0043] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0044] The fan unit is arranged in the housing, and the inlet of the fan unit is arranged corresponding to the air inlet of the housing, so that the gas enters the fan unit from the air inlet, and then flows out from the outlet of the fan unit, and is discharged from the housing through the extended channel and the air outlet. The extended channel lengthens the path of the air from the outlet of the fan unit to the air outlet of the housing, reduces the kinetic energy of the air in the path, and then reduces the noise generated by the air, achieving a noise reduction effect.

[0045] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0046] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0047] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fan assembly, characterized in that: include: A shell (10) having a receiving chamber and an extension channel (13), wherein the extension channel (13) is located below the receiving chamber, and an air inlet (11) and an air outlet (12) are provided on the shell (10), wherein the air inlet (11) is in communication with the receiving chamber, and the extension channel (13) is in communication with the receiving chamber and the air outlet (12); A fan unit (20) is arranged in the accommodating cavity, and an inlet of the fan unit (20) is arranged corresponding to the air inlet (11), wherein the airflow flowing out of the outlet of the fan unit (20) is discharged to the outside of the housing (10) through the extension channel (13) and the air outlet (12); A partition (14) is also provided in the extended channel (13), and the partition (14) divides the extended channel (13) into a plurality of flow passages in the air outlet direction; The extending direction of the partition (14) is parallel to the extending direction of the axis of the fan part (20); the partition (14) is arranged below the fan part (20) and is capable of supporting the weight of the fan part (20); The housing (10) comprises a first soundproof cover (15) and a second soundproof cover (16) located below the first soundproof cover (15), the first soundproof cover (15) and the second soundproof cover (16) being connected to each other to form the accommodating cavity, the air inlet (11) being arranged on the first soundproof cover (15), and the air outlet (12), the extension channel (13) and the partition (14) being arranged on the second soundproof cover (16); The second soundproof cover (16) comprises an upper soundproof cover (161), a lower soundproof cover (162) and a partition (163); the upper soundproof cover (161), the partition (163) and the first soundproof cover (15) form the accommodating cavity; the partition (163) is provided with a connecting hole (164) connecting the accommodating cavity and the extended channel (13); A buffer member (30) is provided between the housing (10) and the fan unit (20), the buffer member (30) comprising a second buffer member (32) provided between a bottom wall of the housing (10) and a bottom of the fan unit (20); The second buffer members (32) are multiple and are arranged above the partition (163), the partition members (14) are multiple and are arranged below the partition (163), and the second buffer members (32) and the partition members (14) are arranged in a one-to-one correspondence so that the partition members (14) support the second buffer members (32).

2. The fan assembly according to claim 1, characterized in that: The bottom wall of the lower soundproof cover (162) comprises an arc-shaped wall (1621) corresponding to the communicating hole (164) and a straight wall (1622) connected to the arc-shaped wall (1621); the side wall of the lower soundproof cover (162) connects the bottom wall of the lower soundproof cover (162) and the partition (163); the bottom wall of the lower soundproof cover (162), the side wall of the lower soundproof cover (162) and the partition (163) form the extended channel (13).

3. The fan assembly according to claim 1, characterized in that: The buffer member (30) comprises a first buffer member (31) arranged between a top wall of the housing (10) and a top of the fan unit (20).

4. The fan assembly according to claim 1, characterized in that: The center line of the second buffer member (32) is located within the center plane of the partition member (14).

5. The fan assembly according to claim 1, characterized in that: The width of the extended channel (13) along a direction perpendicular to the airflow direction is equal to the width of the accommodating cavity.

6. A vacuum cleaner, comprising a fan assembly, characterized in that: The fan assembly is the fan assembly according to any one of claims 1 to 5.

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