Motor noise reduction structure and cleaning equipment

Abstract

The utility model relates to the technical field of household cleaning electric appliances, and discloses a motor noise reduction structure and cleaning equipment, the motor noise reduction structure comprises a first sound insulation cover and a second sound insulation cover which are sequentially arranged outside a motor, the first sound insulation cover is provided with a first air outlet, and the second sound insulation cover is provided with a second air outlet; and the at least two second air outlets are distributed on different sides of the first air outlet. Air flow generated by the motor enters the cavity between the first sound insulation cover and the second sound insulation cover from the first air outlet and then can be divided into multiple paths to be exhausted from the multiple second air outlets in different sides, the propagation path of noise is prolonged, the air flow is dispersed into two paths to be exhausted, the purpose of weakening the noise can be achieved, and the service life of the motor is prolonged. According to the motor noise reduction structure, energy of noise in the transmission process is attenuated, the problem that high noise is generated due to impulsive force concentration of airflow is avoided, and the problems that in the prior art, a motor noise reduction structure of cleaning equipment is not ideal in noise reduction effect and poor in user experience are effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of household cleaning appliance technology, specifically to a motor noise reduction structure and cleaning equipment. Background Technology

[0002] With the improvement of people's living standards and hygiene awareness, cleaning equipment such as mite removers, vacuum cleaners, and floor scrubbers are widely used in homes due to their advantages of good cleaning effect, high cleaning efficiency, improved living environment cleanliness and hygiene, and protection of public health. These cleaning devices use vacuum motors to generate negative pressure to adsorb dust, hair, debris, mites, and their excrement. However, vacuum motors generate significant noise when rotating at high speeds, seriously affecting the user's cleaning experience and causing discomfort.

[0003] Related technologies reduce noise by setting one or more covers around the motor. Although this can reduce noise to some extent, the concentrated airflow generates a lot of noise, resulting in an unsatisfactory noise reduction effect and a poor user experience. Utility Model Content

[0004] In view of this, the present invention provides a motor noise reduction structure and cleaning equipment to solve the problem that the noise reduction effect of the motor noise reduction structure in the existing cleaning equipment is not ideal and the user experience is not good.

[0005] In a first aspect, this utility model provides a motor noise reduction structure, including a first soundproof cover and a second soundproof cover arranged sequentially outside the motor;

[0006] The first soundproof cover is provided with a first air outlet, and the second soundproof cover is provided with a second air outlet; the second air outlet and the first air outlet are spatially offset;

[0007] There are at least two second air outlets, which are located on different sides of the first air outlet.

[0008] Beneficial Effects: By installing a first and second soundproof cover around the motor, the double-layered soundproof cover can completely isolate the motor, resulting in better noise reduction. The second air outlet and the first air outlet are spatially staggered, which extends the noise propagation path. Multiple second air outlets located on different sides of the first air outlet allow the airflow generated by the motor to be divided into multiple paths after entering the chamber between the first and second soundproof covers, and then discharged from these multiple second air outlets on different sides. This dispersed airflow not only weakens the noise by attenuating its energy during propagation but also avoids the problem of concentrated airflow causing high noise levels. This achieves excellent noise reduction, reduces noise pollution, and improves the user experience. It effectively solves the problems of existing cleaning equipment where the airflow generated by the motor is discharged along only one propagation path, resulting in concentrated airflow, high noise levels, unsatisfactory noise reduction, and a poor user experience.

[0009] In one optional embodiment, the second air outlet is distributed on both sides of the first air outlet. The airflow generated by the motor enters the cavity between the first and second soundproof covers through the first air outlet and is then split into two paths, which are discharged from the second air outlets on both sides respectively.

[0010] Beneficial effects: By setting second air outlets on both sides of the first air outlet, the airflow generated by the motor, after exiting the first air outlet and entering the cavity between the first and second soundproof covers, can be split into two paths and discharged from the second air outlets on both sides. This not only prolongs the noise propagation path, but also disperses the airflow into two paths, thereby reducing the noise. This causes the noise energy to attenuate during propagation, avoiding the problem of high noise caused by the concentrated force of the airflow. As a result, a good noise reduction effect can be achieved, reducing noise pollution and improving the user experience.

[0011] In one alternative implementation, there are an even number of second air outlets, which are evenly distributed on both sides of the first air outlet.

[0012] Beneficial effects: By evenly distributing the second air outlet on both sides of the first air outlet, the purpose of uniform airflow can be achieved, resulting in better noise reduction.

[0013] In one alternative implementation, the first air outlet is located at the top of the motor, and the second air outlet is located at the bottom of the motor.

[0014] Beneficial effects: The first air outlet is positioned as far away from the second air outlet as possible. The first air outlet is located at the top of the motor, and the second air outlet is located at the bottom of the motor. This allows the airflow from the first air outlet to reach the second soundproof cover and then propagate outward along a bending path. This changes the angle and absorbs the noise as it is transmitted outward. The airflow path is longer, resulting in better noise reduction. This effectively absorbs and reduces noise, thus improving the noise reduction effect.

[0015] In one alternative embodiment, the first soundproof enclosure has a cylindrical body extending along the axial direction of the motor, the cylindrical body covering the outer periphery of the motor;

[0016] The second soundproof cover is installed outside the cylindrical body, and the side of the second soundproof cover away from the first air outlet has an opening. The opening and the two sides of the cylindrical body have air outlet gaps, which constitute the second air outlet.

[0017] Beneficial effects: The cylindrical main body, encased outside the motor, provides initial isolation and attenuation of the motor's noise. The second soundproof cover, also encased outside the cylindrical main body, provides secondary isolation and attenuation of the motor's noise, resulting in even better noise reduction. Furthermore, the design of the second air outlet, formed by the air gap between the edge of the opening of the second soundproof cover and the sides of the cylindrical main body, eliminates the need for separate openings on the second soundproof cover, simplifying the structure and facilitating manufacturing. Moreover, the opening is located on the side of the second soundproof cover furthest from the first air outlet, allowing the airflow to split into two paths after exiting the first air outlet, before being discharged through the second air outlets on both sides. This complex noise propagation path weakens noise transmission and improves the noise reduction effect.

[0018] In one optional embodiment, a first silencing cavity is formed between the first soundproof cover and the motor, and a first silencing component is disposed inside the first silencing cavity.

[0019] Beneficial effects: A first silencing cavity is formed between the motor and the first soundproof cover. The first silencing cavity blocks the transmission of noise generated by the motor. Furthermore, a first silencing component is installed inside the first silencing cavity. After the sound wave enters the pores of the first silencing component, the propagation path becomes complicated, and the sound wave is reflected multiple times. This can achieve the effect of absorbing and consuming sound energy, thereby effectively reducing the propagation and vibration of sound and reducing noise.

[0020] In one optional embodiment, a second silencing cavity is formed between the first soundproof cover and the second soundproof cover, and a second silencing component is disposed in the second silencing cavity.

[0021] Beneficial effects: A second silencing cavity is formed between the first and second soundproof covers. The second silencing cavity blocks the transmission of noise generated by the motor for the second time. Furthermore, a second silencing component is installed inside the second silencing cavity. After the sound wave enters the pores of the second silencing component, the propagation path becomes more complex, and the sound wave is reflected multiple times, thereby achieving the effect of absorbing and consuming sound energy. This can more effectively reduce the propagation and vibration of sound and reduce noise.

[0022] In one alternative implementation, the first silencing element and / or the second silencing element is sound-absorbing cotton.

[0023] Beneficial effects: The first and second sound-absorbing components, by adopting the design of sound-absorbing cotton, not only have good sound absorption and noise reduction effects, but are also lightweight, low in cost, and easy to assemble.

[0024] Secondly, this utility model also provides a cleaning device, comprising:

[0025] chassis;

[0026] The motor, installed inside the housing, is used to provide vacuum suction.

[0027] The motor noise reduction structure of any of the above embodiments is disposed outside the motor and is used to perform noise reduction processing on the motor;

[0028] A third silencing cavity is formed between the casing and the second soundproof cover of the motor noise reduction structure, and an exhaust port is provided on the casing corresponding to the second air outlet.

[0029] Beneficial effects: The airflow generated by the motor flows out of the motor housing and into the first silencing chamber, passes through the first silencing component, and then through the first air outlet, entering the second silencing chamber, where it is split into two paths. It then passes through the second silencing component, and finally through the second air outlet and the third silencing chamber before being discharged from the exhaust port on the housing. By setting up a double-layered motor noise reduction structure and a housing, a total of three layers surround the motor. These three layers effectively isolate and weaken the noise generated by the vacuum motor. The ingenious structural design is highly practical, greatly reducing the vibration and noise generated by the motor and airflow within the housing, resulting in better noise reduction.

[0030] In one alternative implementation, the cleaning device is a mite remover. Attached Figure Description

[0031] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0032] Figure 1 This is a partial cross-sectional view of the mite remover in an embodiment of the present invention;

[0033] Figure 2 This is a partial cross-sectional view of the motor noise reduction structure and the motor in an embodiment of this utility model;

[0034] Figure 3 A schematic diagram of the motor noise reduction structure and the bottom view after the motor is assembled.

[0035] Figure 4 for Figure 2 Airflow direction diagram;

[0036] Figure 5 This is a diagram showing the airflow direction of the motor noise reduction structure and the full cross-section of the motor in this embodiment of the present invention.

[0037] Figure 6 This is a cross-sectional view of the airflow direction of the entire mite remover (excluding the first and second silencers) in this embodiment of the present invention.

[0038] Explanation of reference numerals in the attached figures:

[0039] 10. Motor noise reduction structure; 101. First air outlet; 102. Second air outlet;

[0040] 11. First soundproof cover; 12. Second soundproof cover; 121. Protrusion; 13. First silencing component; 14. Second silencing component;

[0041] 20. Electric motor;

[0042] 30. Housing; 301. Exhaust vent. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0044] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0045] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0046] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0047] The following is combined with Figures 1 to 6 The following describes embodiments of the present invention.

[0048] According to an embodiment of the present invention, in one aspect, the present invention provides a motor noise reduction structure 10, including a first soundproof cover 11 and a second soundproof cover 12 sequentially disposed outside the motor 20. The first soundproof cover 11 is provided with a first air outlet 101, and the second soundproof cover 12 is provided with a second air outlet 102. The second air outlet 102 and the first air outlet 101 are spatially offset. At least two second air outlets 102 are provided and distributed on different sides of the first air outlet 101.

[0049] The motor noise reduction structure 10 provided in the above embodiments, through the first soundproof cover 11 and the second soundproof cover 12 set outside the motor 20, can completely isolate the motor 20, resulting in better noise reduction. The second air outlet and the first air outlet are designed to be spatially staggered, which can extend the noise propagation path. By setting multiple second air outlets on different sides of the first air outlet, the airflow generated by the motor can be split into multiple paths after entering the cavity between the first and second soundproof covers from the first air outlet, and discharged from multiple second air outlets on different sides. The airflow is dispersed into multiple paths, which not only reduces the noise and attenuates the energy of the noise during propagation, but also avoids the problem of high noise caused by the concentrated force of the airflow. Thus, it can achieve a good noise reduction effect, reduce noise pollution, improve the user experience, and effectively solve the problem that the airflow generated by the motor of the cleaning equipment in the prior art is discharged along only one propagation path, the force of the airflow is concentrated, the noise generated is relatively large, the noise reduction effect is not ideal, and the user experience is poor.

[0050] It should be noted that in this embodiment, the number of second air outlets can be two or more. The second air outlets can be distributed on the adjacent two sides of the first air outlet, or on opposite two sides, or on any three sides, or on all four sides. This embodiment does not make any specific limitation in this regard.

[0051] In some specific embodiments, the second air outlet 102 is distributed on both sides of the first air outlet 101. The airflow generated by the motor 20 enters the cavity between the first soundproof cover 11 and the second soundproof cover 12 through the first air outlet 101 and then splits into two paths, which are discharged from the second air outlet 102 on both sides respectively.

[0052] In the above embodiment, by providing second air outlets 102 on both sides of the first air outlet 101, the airflow generated by the motor 20, after exiting the first air outlet 101 and entering the cavity between the first soundproof cover 11 and the second soundproof cover 12, can be split into two paths and discharged from the second air outlets 102 respectively. This not only extends the noise propagation path, but also disperses the airflow into two paths, thereby reducing the noise and causing the noise energy to attenuate during propagation. This avoids the problem of high noise caused by the concentrated force of the airflow, thus achieving a good noise reduction effect, reducing noise pollution, and improving the user experience.

[0053] Specifically, the first soundproof cover 11 is installed outside the motor 20, the second soundproof cover 12 is installed outside the first soundproof cover 11, and the second air outlet 102 is located on the left and right sides of the first air outlet 101. A chamber for airflow is formed between the second soundproof cover 12 and the first soundproof cover 11. This chamber is divided into two parts by the first air outlet 101, namely the first air duct from the first air outlet 101 to the left side of the second air outlet 102 and the second air duct from the first air outlet 101 to the right side of the second air outlet 102. When the airflow flows out from the first air outlet 101, it flows out from the second air outlet 102 on both sides through the first air duct and the second air duct respectively. By setting at least two air outlets (second air outlets 102) on both sides of the first air outlet 101, the airflow can be diverted compared to a single air outlet, reducing the noise generated during airflow transmission, thereby greatly improving the noise reduction effect.

[0054] It should be noted that the motor noise reduction structure 10 provided in this embodiment is applied to cleaning equipment, specifically, to the vacuum motor of cleaning equipment, such as the vacuum motor of a vacuum cleaner, floor scrubber, or mite remover. More precisely, the motor noise reduction structure 10 is applied to a mite remover to reduce the noise of the vacuum motor of the mite remover. Figure 1 and attached Figure 6 This is embodied in the form of a motor noise reduction structure 10 applied to a mite removal device.

[0055] In some embodiments, combined with Figure 3 , Figure 5 , Figure 6 As shown, there are an even number of second air outlets 102, which are evenly distributed on both sides of the first air outlet 101.

[0056] The above design achieves uniform current distribution and better noise reduction.

[0057] Preferably, the second air outlet 102 is symmetrically distributed on both sides of the first air outlet 101.

[0058] In other alternative implementations, the second air outlet 102 can also be designed asymmetrically, that is, the distance between the second air outlet 102 and the first air outlet 101 is different. However, it is necessary to ensure that the distance difference between the second air outlet 102 and the first air outlet 101 is within a set distance range, so as to avoid the distance difference between the second air outlet 102 and the first air outlet 101 being too large, which would affect the noise reduction effect.

[0059] More preferably, there are two second air outlets 102, which are symmetrically distributed on both sides of the first air outlet 101.

[0060] In other alternative embodiments, there is an odd number of second air outlets 102, which are non-uniformly distributed on both sides of the first air outlet 101. For example, there are three second air outlets 102, one of which is located on one side of the first air outlet 101, and the other two are located on the other side of the first air outlet 101.

[0061] In some embodiments, such as Figure 4 and Figure 5 As shown, the first air outlet 101 is located at the top of the motor 20, and the second air outlet 102 is located at the bottom of the motor 20.

[0062] In the above embodiment, the first air outlet 101 is located as far away from the second air outlet 102 as possible. The first air outlet 101 is located at the top of the motor 20, and the second air outlet is located at the bottom of the motor 20. This allows the airflow from the first air outlet 101 to travel outward along the bending path after reaching the second soundproof cover 12. This causes the angle of noise transmission to change and be absorbed, thereby effectively absorbing and reducing noise and improving the noise reduction effect.

[0063] In other alternative embodiments, the first air outlet 101 is located at the bottom of the motor 20 and the second air outlet 102 is located at the top of the motor 20; or, the first air outlet 101 is located on the left side of the motor 20 and the second air outlet 102 is located on the right side of the motor 20; or the first air outlet 101 is located on the right side of the motor 20 and the second air outlet 102 is located on the left side of the motor 20.

[0064] Of course, the first air outlet 101 and the second air outlet 102 can also be located on adjacent sides of the motor 20. In this embodiment, the specific positions of the first air outlet 101 and the second air outlet 102 are not limited, as long as the first air outlet 101 and the second air outlet 102 are located on different sides of the motor 20. Preferably, the first air outlet 101 and the second air outlet 102 are located on opposite sides of the motor 20.

[0065] More preferably, the first air outlet 101 is located at the top of the motor 20, and the second air outlet 102 is located at the bottom of the motor 20. The first air outlet 101 is set upwards, and the second air outlet 102 is set downwards. This design allows the airflow to flow out from the bottom of the motor 20 instead of blowing upwards, thus avoiding the airflow blowing directly on the user and affecting the user experience.

[0066] In some embodiments, such as Figures 4 to 6 As shown, the first soundproof cover 11 has a cylindrical body extending along the axial direction of the motor 20, and the cylindrical body covers the outer periphery of the motor 20; the second soundproof cover 12 covers the cylindrical body, and the second soundproof cover 12 has an opening on the side away from the first air outlet 101, and there is an air outlet gap between the opening and the two sides of the cylindrical body, and the air outlet gap constitutes the second air outlet 102.

[0067] In the above embodiment, the shape and size of the cylindrical body match the shape and size of the motor 20. The cylindrical body covers the motor 20, isolating and weakening the noise generated by the motor 20 at the first stage. The second soundproof cover 12 covers the cylindrical body, isolating and weakening the noise generated by the motor 20 at the second stage, resulting in better noise reduction. In addition, this application uses the air gap between the edge of the opening of the second soundproof cover 12 and the two sides of the cylindrical body to form the second air outlet 102. This eliminates the need for separate openings on the second soundproof cover 12, simplifying the structure and facilitating manufacturing. Furthermore, the opening is located on the side of the second soundproof cover 12 away from the first air outlet 101, allowing the airflow to split into two paths along a bending path after flowing out of the first air outlet 101, and then be discharged through the second air outlets 102 on both sides respectively. This complicates the noise propagation path, thereby weakening the noise propagation and improving the noise reduction effect.

[0068] Specifically, the second soundproof cover 12 has a shell that partially surrounds the outer periphery of the cylindrical main body. The shell is U-shaped or C-shaped, preferably U-shaped. A deep U-shaped shell can extend the noise propagation path and has a good air diversion effect. The second soundproof cover 12 covers the first soundproof cover 11 on the side of the first air outlet 101. The air outlet gap between the opening of the second soundproof cover 12 and the other side of the first soundproof cover 11 forms the second air outlet 102.

[0069] Furthermore, such as Figure 5 and Figure 6 As shown, the second soundproof cover 12 has an outwardly protruding portion 121 corresponding to the position of the first air outlet 101. The provision of this protruding portion 121 can further increase the depth of the second soundproof cover 12, thereby extending the noise propagation path and improving the noise reduction effect. Furthermore, the provision of the protruding portion 121 can also increase the volume of the second soundproof cover 12, making it easier to fit a larger and thicker sound-absorbing cotton inside the second soundproof cover 12 located at the first air outlet 101, thereby further improving the sound absorption and noise reduction effect.

[0070] In this embodiment, the cylindrical body of the first soundproof cover 11 is coaxially arranged with the motor 20, the first air outlet 101 is opened on the cylindrical body, the cylindrical body and the motor 20 have a first silencing cavity, the first soundproof cover 11 and the second soundproof cover 12 have a second silencing cavity, the air outlet of the motor 20 is staggered from the first air outlet 101, so that the airflow generated by the motor 20 will be discharged from the first air outlet 101 to the second silencing cavity for the first time along the bending path, thereby extending the noise propagation path and improving the noise reduction effect.

[0071] Furthermore, in this embodiment, the first soundproof cover 11 and the second soundproof cover 12 are fixed together. Preferably, the first soundproof cover 11 and the second soundproof cover 12 are integrally formed.

[0072] In some embodiments, the second soundproof cover 12 includes a cover body and an opening, wherein the cylindrical body covers a first part corresponding to the cover body and a second part corresponding to the opening, the cover body covers the outer periphery of the first part of the cylindrical body, the opening exposes the second part of the cylindrical body, and a first air outlet 101 is opened on the first part of the cylindrical body.

[0073] In the above embodiment, by opening the first air outlet 101 on the first part of the cylindrical body, the airflow coming out of the first air outlet 101 can be blocked by the second soundproof cover 12 and then bend and discharged from the second air outlet 102, which extends the airflow path between the first air outlet 101 and the second air outlet 102, thereby extending the noise propagation path and enhancing the noise reduction effect.

[0074] In some embodiments, a first silencing cavity is formed between the first soundproof cover 11 and the motor 20, and a first silencing component 13 is disposed in the first silencing cavity.

[0075] In the above embodiment, a first silencing cavity is formed between the motor 20 and the first soundproof cover 11. The first silencing cavity blocks the propagation of noise generated by the motor 20, and a first silencing component 13 is provided in the first silencing cavity. After the sound wave enters the pores of the first silencing component 13, the propagation path becomes complicated and the sound wave is reflected multiple times, thereby achieving the effect of absorbing and consuming sound energy, thus effectively reducing the propagation and vibration of sound and reducing noise.

[0076] In some embodiments, a second silencing cavity is formed between the first soundproof cover 11 and the second soundproof cover 12, and a second silencing component 14 is disposed in the second silencing cavity.

[0077] In the above embodiment, a second silencing cavity is formed between the first soundproof cover 11 and the second soundproof cover 12. The second silencing cavity blocks the propagation of noise generated by the motor 20 for the second time. A second silencing component 14 is provided in the second silencing cavity. After the sound wave enters the pores of the second silencing component 14, the propagation path becomes more complex and the sound wave is reflected multiple times, thereby achieving the effect of absorbing and consuming sound energy. This can more effectively reduce the propagation and vibration of sound and reduce noise.

[0078] In this embodiment, the first silencing component 13 and the second silencing component 14 are made of porous silencing material. The first silencing component 13 is arranged around the motor 20 and fills the entire first silencing cavity; the second silencing component 14 is arranged around the first soundproof cover 11 and fills the entire second silencing cavity.

[0079] Preferably, the first silencing component 13 and / or the second silencing component 14 are sound-absorbing cotton. By using sound-absorbing cotton, the first silencing component 13 and the second silencing component 14 not only have good noise reduction effect, but are also lightweight, low in cost, and easy to assemble.

[0080] Preferably, in this embodiment, both the first silencing component 13 and the second silencing component 14 are made of sound-absorbing cotton.

[0081] Of course, in other alternative embodiments, the first silencing component 13 and the second silencing component 14 may also be made of materials such as silencing plates, silencing non-woven fabrics, silencing felts, or foam materials.

[0082] The motor noise reduction structure 10 provided in this embodiment includes a first silencing component 13, a first air outlet 101, a first silencing cavity, a first soundproof cover 11, a second silencing component 14, a second silencing cavity, a second soundproof cover 12, and a second air outlet 102. A first silencing cavity is formed between the motor 20 and the first soundproof cover 11. The first silencing component 13 is disposed within the first silencing cavity. The silencing cotton has a multi-pore structure; after sound waves enter the pores, the propagation path becomes complex, leading to increased sound wave reflection, thereby reducing noise. The first silencing cavity can block the propagation of noise generated by the motor 20, thus reducing the noise generated by the motor 20 for the first time. The first air outlet 101 is located on the top of the motor 20, positioned as far away as possible from the second air outlet 102. A second silencing cavity is formed between the first soundproof cover 11 and the second soundproof cover 12. A second silencing component 14 is provided in the second silencing cavity. The second silencing cavity can divert airflow and extend the propagation path of noise. When used in conjunction with silencing cotton, the noise entering the second silencing cavity from the first silencing cavity is weakened again, and the noise reduction effect is obvious.

[0083] According to an embodiment of the present invention, on the other hand, as... Figure 1 , Figure 2 and Figure 6 As shown, a cleaning device is provided, including a housing 30, a motor 20, and a motor noise reduction structure 10 according to any of the above embodiments; the motor 20 is installed inside the housing 30 to provide vacuum suction; the motor noise reduction structure 10 is disposed outside the motor 20 to reduce the noise of the motor 20; a third sound-absorbing cavity is formed between the housing 30 and the second soundproof cover 12 of the motor noise reduction structure 10; an exhaust port 301 is provided on the housing 30 corresponding to the second air outlet 102, and the exhaust port 301 connects to the external space of the housing 30.

[0084] In this embodiment, the airflow generated by the motor 20 flows out through the motor housing and into the first silencing chamber, passes through the first silencing component 13, passes through the first air outlet 101, and enters the second silencing chamber, where it is split into two paths. Then, it passes through the second silencing component 14 and is discharged from the exhaust port 301 on the housing through the second air outlet 102 and the third silencing chamber, respectively. By setting a double-layered motor noise reduction structure 10 and a housing 30, a total of three layers of housing surround the motor 20. These three layers of housing can efficiently isolate and weaken the noise generated by the vacuum motor. The ingenious structural design is highly practical and greatly reduces the vibration and noise generated by the motor 20 and the airflow within the housing 30, resulting in better noise reduction.

[0085] Specifically, in this embodiment, as Figure 6 As shown, the motor 20 is a vacuum motor, and there are two second air outlets 102 distributed on both sides of the first air outlet 101. Two exhaust ports 301 are provided on both sides of the housing 30, and the two exhaust ports 301 correspond one-to-one with the two second air outlets 102.

[0086] In some embodiments, the cleaning device is a mite remover.

[0087] The dust removal process and principle of the mite remover involves a vacuum motor providing suction to remove dust mites. Preferably, in this embodiment, the vacuum motor and the motor noise reduction structure 10 are located at the lower rear of the mite remover. The airflow generated by the vacuum motor flows through the motor noise reduction structure 10 and is then discharged to the outside through two exhaust ports 301 on both sides of the housing 30. The innovation of the motor noise reduction structure 10 provided in this embodiment lies in the addition of a double-layered housing (a first soundproof cover 11 and a second soundproof cover 12) with noise reduction function outside the vacuum motor, as well as the mite remover housing 30. The three layers of housing isolate and weaken the noise generated by the vacuum motor. The ingenious structural design is highly practical, enabling the mite remover to operate with low noise without the need for additional equipment for noise reduction, thus improving the user experience and effectively solving the problem of high vacuum motor noise during the use of the mite remover.

[0088] It should be noted that the cleaning equipment in this embodiment can also be a vacuum cleaner or a floor scrubber, etc.

[0089] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the protection scope of the embodiments of this application.

Claims

1. A motor noise reduction structure, characterized in that, Includes a first soundproof cover (11) and a second soundproof cover (12) sequentially disposed outside the motor (20); The first soundproof cover (11) is provided with a first air outlet (101), and the second soundproof cover (12) is provided with a second air outlet (102). The second air outlet (102) and the first air outlet (101) are spatially offset. There are at least two second air outlets (102), which are distributed on different sides of the first air outlet (101).

2. The motor noise reduction structure according to claim 1, characterized in that, The second air outlet (102) is distributed on both sides of the first air outlet (101); The airflow generated by the motor (20) enters the chamber between the first soundproof cover (11) and the second soundproof cover (12) through the first air outlet (101) and is then split into two paths, which are discharged from the second air outlets (102) on both sides respectively.

3. The motor noise reduction structure according to claim 2, characterized in that, The number of second air outlets (102) is even, and they are evenly distributed on both sides of the first air outlet (101).

4. The motor noise reduction structure according to claim 1, characterized in that, The first air outlet (101) is located at the top of the motor (20), and the second air outlet (102) is located at the bottom of the motor (20).

5. The motor noise reduction structure according to any one of claims 1 to 4, characterized in that, The first soundproof cover (11) has a cylindrical body extending along the axial direction of the motor (20), and the cylindrical body covers the outer periphery of the motor (20); The second soundproof cover (12) is provided outside the cylindrical body, and the second soundproof cover (12) has an opening on the side away from the first air outlet (101). The opening has an air outlet gap with the two sides of the cylindrical body, and the air outlet gap constitutes the second air outlet (102).

6. The motor noise reduction structure according to any one of claims 1 to 3, characterized in that, A first silencing cavity is formed between the first soundproof cover (11) and the motor (20), and a first silencing component (13) is provided in the first silencing cavity.

7. The motor noise reduction structure according to claim 6, characterized in that, A second silencing cavity is formed between the first soundproof cover (11) and the second soundproof cover (12), and a second silencing component (14) is provided in the second silencing cavity.

8. The motor noise reduction structure according to claim 7, characterized in that, The first silencing component (13) and / or the second silencing component (14) are sound-absorbing cotton.

9. A cleaning device, characterized in that, include: Casing (30); A motor (20), installed inside the housing (30), is used to provide vacuum suction; The motor noise reduction structure (10) according to any one of claims 1 to 8 is disposed outside the motor (20) and is used to perform noise reduction processing on the motor (20); A third silencing cavity is formed between the housing (30) and the second soundproof cover (12) of the motor noise reduction structure (10), and an exhaust port (301) is provided on the housing (30) corresponding to the second air outlet (102).

10. The cleaning equipment according to claim 9, characterized in that, The cleaning equipment is a mite remover.

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