A motor cover and a hand vacuum cleaner

Abstract

The application provides a motor cover and a handheld dust collector, which comprises a motor shell, a mounting cavity suitable for embedding an air flow generator is formed in the motor shell, a motor comb air outlet is arranged at the top of the motor shell, an assembly opening is arranged at the bottom of the motor shell, and a motor air outlet is arranged at the side of the motor shell. When the air flow generator is embedded in the motor cover, external air flow is sucked in through the motor comb air outlet, and then the air flow is discharged to the outside through the motor air outlet. The movement path of the air flow in the motor shell is that the air flow enters from the motor comb air outlet at the top of the motor shell, and then flows to the bottom of the motor shell. When the air flow moves to the motor air outlet, the movement direction of the air flow changes, and the air flow is discharged to the outside from the motor air outlet. The movement path of the air flow along the broken line is beneficial to noise reflection, thereby offsetting part of the noise and playing a noise reduction role.

Description

Technical Field

[0001] This invention relates to the field of dust and dirt separation device structure technology, specifically to a motor cover and a handheld vacuum cleaner. Background Technology

[0002] Vacuum cleaners are common household cleaning tools. With the development of technology, vacuum cleaners have evolved from traditional large equipment into smaller, handheld devices.

[0003] The working principle of a vacuum cleaner is as follows: the vacuum cleaner has an airflow generator inside, which creates a lower air pressure inside the vacuum cleaner than at the air intake, so that the air intake of the vacuum cleaner has suction power, thereby drawing dust and air into the vacuum cleaner. The vacuum cleaner has a dust and dirt separation filter inside, which filters the dust and dirt mixed in the airflow and delivers clean air back to the outside environment.

[0004] Since the main core components of a vacuum cleaner are the airflow generator and the dust and dirt separation filter, the airflow generator will generate a certain amount of noise when it is working. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect of the airflow generator in the prior art that generates a lot of noise and affects the user experience, thereby providing a motor cover and a handheld vacuum cleaner.

[0006] A motor cover, comprising:

[0007] A motor housing having an internally formed mounting cavity suitable for embedding an airflow generator;

[0008] The motor air comb is located at the top of the motor housing;

[0009] An assembly opening is located at the bottom of the motor housing;

[0010] The motor air outlet is located on the side of the motor housing.

[0011] The motor cover also includes:

[0012] An air outlet channel for the motor is provided on the air outlet of the motor, and the air outlet channel for the motor extends away from the motor housing.

[0013] The motor's air outlet channel is set at an angle.

[0014] The motor air outlet channel includes:

[0015] The motor exhaust port extends towards the top of the motor housing, and the height of the motor exhaust port is higher than the height of the motor comb port.

[0016] The motor exhaust duct is located downstream of the motor air outlet duct, and the motor exhaust port is located on the motor exhaust duct.

[0017] The motor exhaust duct is arranged in a horizontal direction.

[0018] The length direction of the motor exhaust channel is perpendicular to the axis of the mounting cavity, or the angle between the length direction of the motor exhaust channel and the axis of the mounting cavity is not greater than 45°.

[0019] The motor's air outlet channel is equipped with an exhaust sponge.

[0020] The motor air outlet channel has an opening, and an air duct cover is fitted onto the opening.

[0021] The motor's air outlet channel is welded to the motor housing.

[0022] A handheld vacuum cleaner, comprising:

[0023] The motor cover described in any of the above solutions;

[0024] A vacuum motor is installed inside the motor housing.

[0025] The technical solution of this invention has the following advantages:

[0026] 1. The present invention provides a motor cover, comprising: a motor housing, wherein the motor housing has an installation cavity formed therein suitable for embedding an airflow generator; a motor air comb, disposed at the top of the motor housing; an assembly opening, disposed at the bottom of the motor housing; and a motor air outlet, disposed at the side of the motor housing.

[0027] An airflow generator can create localized negative pressure, causing it to attract the surrounding environment. When installed inside a motor housing, this negative pressure creates suction. When embedded within the motor housing, the generator draws in external airflow through the motor's air intake and discharges it through the motor's exhaust outlet. The airflow path within the motor housing is as follows: it enters through the air intake at the top and flows towards the bottom. Upon reaching the exhaust outlet, the airflow direction changes, and it is discharged outwards. In existing technologies, noise is generated because the airflow follows a straight path within the generator. The airflow enters from one end, resulting in a relatively short air duct. Noise reflection within this duct partially cancels out noise, making the straight and short duct less effective at noise reduction. In this design, the airflow follows a zigzag path, which facilitates noise reflection and reduces noise levels. On the other hand, the motor exhaust vent located on the side can help control the exhaust direction, providing more options in the overall equipment design.

[0028] 2. The motor cover provided by the present invention further includes: a motor air outlet channel disposed on the motor air outlet, the motor air outlet channel extending away from the motor housing.

[0029] The motor exhaust duct extends the overall airflow path, further reducing noise energy. It also prolongs the time air is released to the outside, which helps reduce noise and lowers the outlet air temperature.

[0030] 3. The motor cover provided by the present invention includes a motor exhaust port, wherein the motor exhaust port extends toward the top of the motor housing, and the height of the motor exhaust port is higher than the height of the motor comb port.

[0031] The height of the motor exhaust port is not lower than the height of the motor comb port, which means that after the airflow flows out from the lower part of the vacuum motor, it bends towards the top of the vacuum motor. This not only increases noise reflection and reduces noise, but also lengthens the overall air duct. The noise energy is dissipated in the air duct. The length of the overall air duct increases the amount of noise energy dissipation, thereby reducing the overall operating noise of the handheld vacuum cleaner.

[0032] 4. The motor cover and motor exhaust channel provided by the present invention are located downstream of the motor air outlet channel, and the motor exhaust port is provided on the motor exhaust channel.

[0033] On the one hand, the motor exhaust duct can further extend the overall air duct. On the other hand, the motor exhaust duct can also form a new turning angle with the motor exhaust duct, so that the airflow path can be further turned, thereby further reducing noise energy.

[0034] 5. The motor cover provided by the present invention has the motor exhaust channel arranged in a horizontal direction.

[0035] The motor exhaust duct can be positioned anywhere within the circumference of the motor cover.

[0036] 6. In the motor cover provided by the present invention, the length direction of the motor exhaust channel is perpendicular to the axis of the mounting cavity, or the angle between the length direction of the motor exhaust channel and the axis of the mounting cavity is not greater than 45°.

[0037] It can control the motor cover to exhaust air in a set direction to the side, and there are more options for the exhaust direction in the overall design of the machine.

[0038] 7. The motor cover provided by the present invention has an exhaust sponge inside the motor air outlet channel.

[0039] The exhaust sponge can further filter the air before it flows out of the motor's exhaust port. Attached Figure Description

[0040] To more clearly illustrate the specific embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0041] Figure 1 This is a front view of the main body structure of a handheld vacuum cleaner;

[0042] Figure 2 A cross-sectional view showing the internal structure of the main unit;

[0043] Figure 3 A schematic diagram of the air duct structure to show the direction of airflow inside the main unit;

[0044] Figure 4 A schematic diagram of the structure in which a vacuum motor is assembled inside a motor housing;

[0045] Figure 5 A cross-sectional view of the structure of the vacuum motor assembled inside the motor housing;

[0046] Figure 6 This is a schematic diagram of the airflow path inside the motor housing;

[0047] Figure 7 Exploded view of the mounting structure of the vacuum motor and motor housing;

[0048] Figure 8 In order to be in Figure 7 An exploded view of the vacuum motor and its housing mounting structure, rotated to another perspective;

[0049] Figure 9 A schematic diagram of the structure of the base shock absorber assembled on the motor base;

[0050] Figure 10 In order to be in Figure 9 A schematic diagram of the structure with the base damping components removed from the original structure;

[0051] Figure 11 A perspective view showing the structure of the base damping component;

[0052] Figure 12 A 3D view showing the dust cup end cap located at the bottom of the main unit;

[0053] Figure 13 This is a schematic diagram illustrating the structure of the dust cup end cap fastening to the bottom opening of the dust cup;

[0054] Figure 14 for Figure 2 The diagram at point I shows an enlarged view of the structure in which the dust cup end cap is connected to the dust cup via the end cap rotating part.

[0055] Figure 15 for Figure 13 Section II shows an enlarged view of the mating structure between the end cap fastening part and the sliding fastener;

[0056] Figure 16 For relative to Figure 13 A schematic diagram of the dust cup end cap structure;

[0057] Figure 17 A three-dimensional diagram showing the structure of the dust cup end cap;

[0058] Figure 18 A three-dimensional diagram showing the structure of the sliding fastener;

[0059] Figure 19 A 3D diagram showing the location of the indicator lights;

[0060] Figure 20 This is a top view showing the location of the unit's exhaust vents.

[0061] Explanation of reference numerals in the attached figures:

[0062] a. Main unit housing; a101. Switch button; a102. Main unit exhaust vent; a103. Second filter; a104. Lateral protrusion;

[0063] b. Handle assembly; b101. First end of the handle; b102. Second end of the handle;

[0064] c. Suction assembly; c1. Vacuum motor; c101. Motor base; c102. Motor control cable; c2. Motor housing; c201. Motor air comb; c2011. Air vent grille; c202. Motor exhaust duct; c2021. Exhaust sponge; c2022. Motor exhaust port; c203. Air guide cone; c2031. Side air outlet; c2032. Side guide plate; c2033. Conical support; c204. Motor exhaust duct; c205. Motor exhaust port; 206. Duct cover; c3. Motor base; c301. Foot mating part; c3011. Vibration damping protrusion; c302. Support leg part; c4. Motor seal; c401. Base pad; c402. Enclosure wall; c403. Ventilation area; c5. Base vibration damping part; c501. Annular vibration damping part; c502. Foot vibration damping part; c503. Support leg vibration damping part; c5031. Unit vibration damping pad; c5032. Buffer pad; c6. Motor cover sealing ring; c7. First filter;

[0065] d. Dust cup assembly; d1. Dust cup body; d2. Dust cup filter; d3. Air inlet assembly; d4. Dust collection chamber; d8. Dust cup end cap; d801. End cap rotating part; d8011. End cap torsion spring; d802. End cap fastening part; d8021. End cap snap; d8022. Transmission protrusion; d8023. Transmission guide surface; d803. Dust cup locking protrusion; d804. Dust cup guide wall; d805. End cap sealing protrusion; d9. Sliding buckle assembly; d901. Sliding buckle part; d902. Sliding buckle spring; d903. Sliding buckle limiting end; d904. Sliding buckle touch groove; d905. Flange pad; d906. Sliding buckle limiting groove; d10. Dust cup inner cylinder; d1001. Inner cylinder air guide section; d1002. Inner cylinder extension section;

[0066] f. Power supply assembly; f101. Power supply housing; f1011. Sliding latch and groove; f102. Indicator light;

[0067] h. Connecting pipe assembly. Detailed Implementation

[0068] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0069] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "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 the invention and for 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 the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0070] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 invention based on the specific circumstances.

[0071] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0072] Example 1

[0073] This embodiment provides a handheld vacuum cleaner, such as Figure 1 - Figure 3 As shown, the device includes: a main housing a; an airflow generator disposed within the main housing a, the airflow generator being used to create negative pressure within the main housing a, and the airflow generator and the main housing a forming a channel for airflow; and a dust separator disposed within the main housing a, the dust separator being located between the airflow generator and the main housing a, and surrounding the airflow generator. When the dust separator surrounds the airflow generator, the height of the airflow generator and the height of the dust separator partially overlap, therefore the total height of the assembled dust separator and airflow generator is less than the sum of their heights. Compared to the separate airflow generator and dust separator in the prior art, this significantly reduces the height of the main housing a.

[0074] Specifically, such as Figure 2 , Figure 5 , Figure 6 As shown, the airflow generator is used to generate negative pressure, such as Figure 1 As shown, the main unit housing a has an air inlet assembly d3 on its left side, through which airflow enters the handheld vacuum cleaner. Figure 1The image shows the main unit of the handheld vacuum cleaner. The main unit's function is to separate the incoming airflow from the dust and dirt mixed in the airflow, and then expel the clean airflow. Figure 1 The air inlet assembly d3 shown can be fitted with various nozzles. For user convenience, a connecting tube assembly h can be fitted to the air inlet assembly d3, through which various nozzles can be attached, thereby extending the length of the nozzles to the main body of the handheld vacuum cleaner. This facilitates cleaning high, distant, or low locations, and allows for the use of different nozzles to clean dust and impurities in corners and crevices. In this embodiment, the negative pressure generated by the airflow generator refers to a lower pressure relative to the air inlet assembly d3, thereby generating suction at the air inlet assembly d3 to draw the mixture of airflow and dust / impurities into the handheld vacuum cleaner.

[0075] Furthermore, in combination Figure 4 , Figure 5 The airflow generator is located within the dust separator, and the airflow generator and the dust separator have a certain degree of overlap in the height direction, thereby reducing the total height of the airflow generator and the dust separator after assembly. Furthermore, the airflow generator is located inside the dust separator, making the assembly structure between the airflow generator and the dust separator more compact and further reducing the volume of the main unit of the handheld vacuum cleaner.

[0076] In this embodiment, as Figure 2 - Figure 8 As shown, the airflow generator is a vacuum motor C1. When the vacuum motor C1 is working, it generates negative pressure, such as... Figure 6 As shown, vacuum motor C1 is located in the middle of the dust separator. Driven by vacuum motor C1, an airflow is formed from the dust separator to vacuum motor C1. Figure 3 , Figure 6 The dust separator is located between the main housing a and the vacuum motor c1. The space between the main housing a and the vacuum motor c1 is a chamber with an annular cross-section. In this embodiment, the vacuum motor c1 is embedded in the middle of the dust separator. The vacuum motor c1 and the dust separator form an integral structure. After the airflow enters the main housing a, an airflow is formed in the integral structure of the vacuum motor c1 and the dust separator, flowing from the outer ring of the annular chamber towards the middle vacuum motor c1.

[0077] Based on the above embodiments, as a further limiting embodiment, such as... Figure 6 As shown, the airflow generator is located downstream of the dust separator. The airflow mixed with dust and impurities first passes through the dust separator, separating the dust and impurities from the airflow. The clean airflow then enters the airflow generator, which protects the airflow generator and prevents dust accumulation.

[0078] Specifically, in combination Figure 1 - Figure 3 , Figure 6 As shown, driven by vacuum motor C1, the airflow enters the main housing a from below the airflow generator and dust separator, as... Figure 6 As shown, the airflow enters from the bottom of the dust separator and then flows out from the top of the dust separator. The airflow then flows from the outer dust separator towards the inner airflow generator, enters from the top of the airflow generator, and then exits from the bottom of the airflow generator, forming a deflection path from bottom to top, from the outer ring to the middle, and then from top to bottom.

[0079] Based on the above embodiments, as a further limiting embodiment, such as... Figure 6 As shown, the airflow generator and the dust separator are collinear. The integration of the airflow generator and the dust separator results in a more compact overall structure, further reducing the space occupied by the dust separator and airflow generator.

[0080] Specifically, such as Figure 5 , Figure 6 As shown, the vacuum motor c1 can be considered as a cylinder, and the dust separator has a cylindrical chamber at its center. The vacuum motor c1 is precisely embedded within the cylindrical chamber in the middle of the dust separator. In an alternative embodiment, the central axes of the dust separator and the vacuum motor c1 are parallel to each other. In another alternative embodiment, the straight line containing the central axes of the dust separator and the vacuum motor c1 intersects.

[0081] Based on the above embodiments, as a further limiting embodiment, such as... Figure 6 - Figure 8 As shown, the dust separator includes: a motor housing c2, disposed within the main housing a; an airflow generator, disposed within the motor housing c2; and a guide cone c203, disposed between the motor housing c2 and the main housing a. The motor housing c2 forms a chamber for embedding and installing the vacuum motor c1, and the guide cone c203 is disposed outside the motor housing c2 and surrounds the vacuum motor c1.

[0082] Specifically, such as Figure 6 - Figure 8 As shown, the cross-sectional area of ​​the air guide cone c203 gradually increases along the airflow direction, while the bottom opening of the air guide cone c203 is relatively small. Figure 6As shown, the airflow enters from the bottom of each guide cone c203, moves along the inner wall of the guide cone c203 to the larger outlet at the top of the guide cone c203. The airflow spirals upward against the inner wall of the guide cone c203. During the upward movement, as the inner diameter of the guide cone c203 gradually increases, the remaining dust and impurities in the airflow are further separated from the airflow. When the airflow spirals upward to the top of the guide cone c203, the airflow has been further separated from the dust and impurities, and the clean air continues to flow above the vacuum motor c1, then enters at the top of the vacuum motor c1 and flows out from the lower half of the vacuum motor c1.

[0083] Among them, such as Figure 6 - Figure 8 As shown, the bottom of the motor housing c2 has an opening for embedding the motor, and the bottom of the motor housing c2 is fitted with a motor base c3. The motor base c3 closes the opening at the bottom of the motor housing c2 and fixes the vacuum motor c1 in the cavity formed between the motor housing c2 and the motor base c3.

[0084] Furthermore, such as Figure 6 As shown, the outer surface of the motor base c3 is an arc surface, that is, in Figure 6 From a certain perspective, the lower surface of the motor base c3 is an arc surface, combined with... Figure 1 - Figure 3 The motor housing c2 and the motor base c3, forming a whole, are located inside the main casing. Airflow entering from below the dust separator is guided by the arc-shaped outer surface of the motor base c3, flowing through a smaller opening at the bottom of the guide cone c203. The opening at the bottom of the guide cone c203 is positioned around the edge of the arc-shaped surface of the motor base c3, making it easier for airflow to enter the guide cone c203 for further dust removal and separation.

[0085] Based on the above embodiments, as a further limiting embodiment, such as... Figure 6 - Figure 8 As shown, the cross-sectional area of ​​the air guide cone c203 gradually increases along the airflow direction. The air guide cone c203 includes a lateral air outlet c2031, located on the side wall of the air guide cone c203 near its top. As the airflow rises from the bottom of the air guide cone c203 along its inner wall, it flows out laterally from the lateral air outlet c2031 on the side wall of the air guide cone c203. This prevents the airflow from stopping at the height of the air inlet at the top of the motor housing c2.

[0086] Based on the above embodiments, as a further limiting embodiment, such as... Figure 5 , Figure 6As shown, the motor housing c2 includes: a motor air combing port c201, located at the top of the motor housing c2; and a motor air outlet c205, located in the lower half of the motor housing c2, causing the airflow to form a zigzag path that travels back and forth in the height direction within the main housing a. When the airflow forms this zigzag path, noise is generated during the movement of the zigzag path, but noise reflection cancels out some of the noise, thus reducing the noise level.

[0087] Specifically, in Figure 6 From this perspective, the left edge of the air guide cone c203 on the left side of the motor is an inclined line, while the right side of the air guide cone c203 is fitted to the outer surface of the motor housing c2. This means that as the inner diameter of the air guide cone c203 gradually increases from bottom to top, the entire air guide cone c203 tilts, with the tilt direction moving away from the vacuum motor c1. Figure 6 From this perspective, the left-side air guide cone c203 tilts to the left, away from the vacuum motor c1. This causes the airflow to move further away from the central axis of the vacuum motor c1 as it flows along the inner wall of the air guide cone c203, thereby further improving the air guide cone c203's ability to distribute force on dust and impurities.

[0088] In this embodiment, the motor air combing port c201 is an opening formed at the top of the motor housing. The specific structure of the motor air combing port c201 is not limited; in this embodiment, the motor air combing port c201 is a circular opening structure that penetrates the top of the motor housing c2. Alternatively, the motor air combing port c201 can also be an array of opening units.

[0089] Furthermore, the opening edge of the motor air comb port c201 is provided with an arc-shaped airflow guide surface. The airflow guide surface can guide the airflow entering the motor housing.

[0090] Based on the above embodiments, as a further limiting embodiment, such as... Figure 6As shown, the height of the motor air combing port c201 does not exceed the height of the side air outlet c2031. Since the air guide cone c203 surrounds the vacuum motor c1, the motor air combing port c201 at the top of the vacuum motor c1 is enclosed by the air guide cone c203. Because the height of the motor air combing port c201 is relatively lower than the side air outlet c2031, a groove-shaped space surrounded by the air guide cone c203 is formed above the motor air combing port c201. A first filter c7 can be further installed within this groove-shaped space, further filtering and purifying the airflow before it enters the vacuum motor c1. Furthermore, the vacuum motor c1 and the air guide cone c203 are already components installed within the overall housing; the new installation structure formed by these components makes the assembly more compact, further reducing the size of the main unit of the handheld vacuum cleaner. Alternatively, the height of the motor air outlet can be the same as the height of the side air outlet c2031. As an alternative implementation, the height of the motor air outlet is higher than the height of the side air outlet c2031.

[0091] Based on the above embodiments, as a further limiting embodiment, such as... Figure 6 - Figure 8 As shown, the air guide cone c203 further includes a lateral air guide vane c2032, disposed at the opening edge of the lateral air outlet c2031, and the lateral air guide vane is tangent to the inner wall of the air guide cone c203. The lateral air guide vane c2032 can guide the direction of airflow out of the air guide cone c203.

[0092] Specifically, such as Figure 8 As shown, the tilt directions of adjacent lateral guide vanes c2032 are different. Figure 8 From a visual perspective, observing the lateral guide vanes on each guide cone c203 sequentially in a counter-clockwise direction, there is a uniform change in tilt angle between adjacent lateral guide vanes in the counter-clockwise direction. Figure 8 In this state, when viewed from above the motor housing c2, the top opening of the air guide cone c203 is directly opposite. At this time, when the airflow flows out from the side air outlets c2031 of the multiple air guide cones c203, it forms a counterclockwise rotating cyclone under the guidance of the side air guide vanes, making the airflow entering from all places around the motor comb port c201 more uniform.

[0093] Furthermore, the side guide vanes do not point directly at the motor air combing port c201, so that the airflow flowing out from the side air outlet c2031 is evenly mixed before entering the motor air combing port c201, making the airflow entering the motor air combing port c201 more uniform.

[0094] In this embodiment, a combing grille is provided on the part of the motor housing c2 corresponding to the motor combing port c201. The cyclone formed by the airflow from the air guide cone c203 and guided by the side air guide vanes enters the motor combing port c201 more evenly after passing through the combing grille.

[0095] Based on the above embodiments, as a further limiting embodiment, such as... Figure 3 , Figure 6 As shown, the motor air outlet c205 is located on the side of the airflow generator. The motor housing c2 has a motor air outlet channel c204 extending from the motor air outlet c205 away from it. The airflow direction in the vacuum motor c1 is downward from the top of the vacuum motor c1. Therefore, the motor air outlet c205 is located on the side wall of the vacuum motor c1 and away from the motor air outlet channel c204 formed by the extension of the motor air outlet c205. When the airflow moves downward in the vacuum motor c1, it changes direction at the motor air outlet c205, that is, the airflow path is further bent, which further increases noise reflection and reduces noise.

[0096] Based on the above embodiments, as a further limiting embodiment, such as... Figure 6 As shown, the airflow gradually increases in height within the motor outlet channel c204. This causes the airflow path after exiting the outlet to bend towards the top of the vacuum motor c1, further increasing noise reflection and reducing noise.

[0097] Based on the above embodiments, as a further limiting embodiment, such as... Figure 6 As shown, the motor housing c2 is provided with a motor exhaust port c2022, which is connected to the motor air outlet channel c204. The height of the motor exhaust port c2022 is not lower than the height of the motor comb port c201. The fact that the height of the motor exhaust port c2022 is not lower than the height of the motor comb port c201 indicates that after the airflow exits from the lower half of the vacuum motor c1, it bends towards the top of the vacuum motor c1. This not only increases noise reflection and reduces noise, but also lengthens the overall air duct. Noise energy is dissipated within the air duct; the increased length of the overall air duct increases the amount of noise energy dissipation, thereby reducing the overall operating noise of the handheld vacuum cleaner. As an alternative implementation, the height of the motor exhaust port c2022 is lower than the height of the motor comb port c201.

[0098] Based on the above embodiments, as a further limiting embodiment, such as... Figure 3 , Figure 6As shown, the motor housing c2 includes a motor exhaust channel c202, which is located downstream of the motor outlet channel c204. The motor exhaust port c2022 is located on the motor exhaust channel c202. The motor exhaust channel c202 extends the overall air duct and also forms a new turning angle with other motor exhaust channels, further changing the airflow path and thus further reducing noise energy.

[0099] In this embodiment, the horizontally arranged motor exhaust duct and the inclined motor air outlet duct c204 intersect, and the airflow changes direction when passing through the connection between the motor exhaust duct and the motor air outlet duct c204.

[0100] Based on the above embodiments, as a further limiting embodiment, such as... Figure 3 , Figure 6 As shown, the motor exhaust channel c202 is equipped with an exhaust sponge c2021, located upstream of the motor exhaust port c2022. The exhaust sponge c2021 can further filter the air before it flows out of the motor exhaust port c2022.

[0101] Specifically, in this embodiment, as Figure 4 As shown, the motor exhaust channel c202 is a cylinder with a circular cross-section. Motor exhaust ports c2022 are evenly distributed on the motor exhaust channel c202. Figure 5 , Figure 7 , Figure 8 As shown, a cylindrical exhaust sponge c2021 is provided inside the motor exhaust duct c202, and filter holes are distributed on the exhaust sponge c2021. As an alternative embodiment, the cross-section of the motor exhaust duct can be triangular, rectangular, pentagonal, hexagonal, or other polygonal shapes. As another alternative embodiment, the cross-section of the motor exhaust duct can be elliptical. Figure 7 , Figure 8 As shown, the motor exhaust duct c202 consists of two detachable parts. One part is an integrally formed motor exhaust duct c204 on the right side of the motor housing. The top of the motor exhaust duct c204 is open and is closed by a duct cover c206, forming the motor exhaust duct c202 on the right side of the motor exhaust duct c204. The exhaust sponge c2021 can be cleaned or replaced by opening the duct cover c206. In this embodiment, the duct structure forming the motor exhaust duct c204 is welded to the right opening of the motor housing c2, which is the motor exhaust port c205.

[0102] Based on the above embodiments, as a further limiting embodiment, such as... Figure 2, Figure 3 As shown, a second filter a103 is provided between the motor outlet c205 and the motor exhaust outlet c2022 of the motor housing c2, or downstream of the motor exhaust outlet c2022. After the airflow flows out from the motor exhaust outlet c2022, it enters the space between the main housing and the motor exhaust channel c202. The second filter a103 is located between the main housing and the exhaust channel, further purifying the airflow before it exits the vacuum cleaner.

[0103] Based on the above embodiments, as a further limiting embodiment, such as... Figure 1 - Figure 3 As shown, the handheld vacuum cleaner further includes: a dust cup assembly d, comprising a dust cup body d1, disposed upstream of the dust separator; and a dust cup filter d2, disposed within the dust cup assembly d. Airflow drawn into the vacuum cleaner from the outside first passes through the dust cup assembly d, where the dust and dirt are separated by the dust cup filter d2, before entering the dust separator for further purification.

[0104] Specifically, such as Figure 1 - Figure 3 As shown, the dust cup body d1 is a cylinder with an open top. The dust cup body d1 has a dust collection chamber d4 inside. The dust separator is installed on the opening at the top of the dust cup body d1. The side wall of the dust cup body d1 has an air inlet assembly d3. The airflow is drawn into the dust collection chamber d4 from the air inlet assembly d3. After dust and dirt are separated in the dust collection chamber d4, the airflow rises and enters the dust separator under the drive of the airflow generator.

[0105] The dust collection structure of the dust cup assembly d, such as Figure 1 - Figure 3 , Figure 12 , Figure 19 As shown, the part of the air inlet assembly d3 that connects to the dust cup body d1 is tangent to the dust cup body d1, thereby forming a lateral air intake path that is tangent to the inner wall of the dust cup body d1.

[0106] Specifically, a dust cup filter d2 is installed inside the dust collection chamber d4. Figure 2 From a certain perspective, the top opening edge of the dust collection chamber d4 has an annular flange extending into the dust collection chamber d4. The dust cup filter d2 is connected to the annular flange. The dust cup filter d2 and the inner wall of the dust cup body d1 form a cyclone separation space. Since the top of the cyclone separation space is blocked by the annular flange, the airflow can only move towards the middle of the dust collection chamber d4 through the dust cup filter d2.

[0107] like Figure 3As shown, the airflow path within the dust collection chamber d4 is as follows: the airflow enters the dust collection chamber d4 from the side of the dust cup body d1 in a manner tangential to the inner wall of the dust cup. The airflow moves in a circular motion against the inner wall of the dust collection chamber d4. During the circular motion, the dust and impurities mixed in the airflow only adhere to the inner wall of the dust collection chamber d4. Driven by the vacuum motor c1, the airflow moves upward. The annular flange used to fix the filter screen blocks the rising airflow and guides it, causing the airflow to move towards the dust cup filter screen d2 under the drive of the vacuum motor c1. The dust cup filter screen d2 can further filter the airflow.

[0108] Based on the above embodiments, as a further limiting embodiment, such as... Figure 6 As shown, the dust cup assembly d further includes: a dust cup inner cylinder d10, the dust cup inner cylinder d10 and the dust cup filter d2 forming a dust cup clean air duct, and the outlet of the dust cup clean air duct is connected to the dust and dirt separator.

[0109] The contents of the dust cup are located within the annular space enclosed by the dust cup filter d2. The contents of the dust cup and the dust cup filter d2 form a dust cup clean air duct. After the airflow passes through the purification effect of the cyclone separation space, it is further purified by the dust cup filter d2, and then moves upward towards the dust and dirt separator within the dust cup clean air duct.

[0110] Specifically, such as Figure 2 , Figure 3 , Figure 13 As shown, the bottom opening of the dust separator is fitted onto the top opening of the dust cup body d1. Because the motor base c3 inside the dust separator has an outwardly convex arc surface, it extends into the dust cup body d1 when the dust separator is fitted onto it. Furthermore, the dust cup body d1 contains a dust cup inner cylinder d10. The motor base c3 is embedded in the top opening of the dust cup inner cylinder d10, sealing the top of the inner cylinder d10. The dust cup inner cylinder d10 and the dust cup filter d2, as well as the dust cup inner cylinder d10 and the annular flange where the filter is installed, form a channel for airflow to rise. The airflow mixed with dust and dirt undergoes dust and dirt separation within the dust collection chamber d4, thus most of the dust and dirt accumulates within the dust collection chamber d4.

[0111] Based on the above embodiments, as a further limiting embodiment, such as... Figure 12 - Figure 16 As shown, the bottom of the dust cup body d1 is provided with a cleaning opening, and a dust cup end cap d8 is movably connected to the cleaning opening. The cleaning opening at the bottom of the dust cup body d1 allows the dust and dirt remaining in the dust collection chamber d4 to automatically fall off when the dust cup end cap d8 is opened.

[0112] Specifically, such as Figure 13 , Figure 16As shown, the dust cup end cap d8 is rotatably connected to the dust cup body d1. Alternatively, the dust cup end cap d8 is slidably connected to the dust cup body d1. Yet another alternative embodiment, the dust cup end cap d8 is fastened to the opening at the bottom of the dust cup body d1 via a snap-fit ​​structure.

[0113] Based on the above embodiments, as a further limiting embodiment, such as... Figure 12 , Figure 15 , Figure 18 As shown, the handheld vacuum cleaner further includes: a sliding fastener assembly d9, including a sliding fastener d901, which is movably connected to the handheld vacuum cleaner; the dust cup end cap d8 includes: an end cap fastening part d802, which is located on the movement path of the sliding fastener d901, and disengages from the dust cup body d1 when the end cap fastening part d802 moves in the movement direction of the sliding fastener d901. When the end cap fastening part d802 is fastened to the opening at the bottom of the dust cup body d1, the end cap fastening part d802 is located on the movement path of the sliding fastener d901. When the sliding fastener d901 slides past the end cap fastening part d802, it pushes the end cap fastening part d802 to deform or shift, causing the end cap fastening part d802 to disengage from the dust cup body d1. Under the action of gravity, the dust cup end cap d8 rotates downward and opens, thereby automatically removing dust and dirt, realizing one-button control to open the dust cup and automatically empty the dust and dirt.

[0114] Specifically, in combination Figure 13 , Figure 15 The left side of the end cap fastening part d802 is rotatably connected to the left side of the opening at the bottom of the dust cup body d1, and the right side of the end cap fastening part d802 is fastened to the outer wall of the right side of the opening at the bottom of the dust cup body d1. Part of the sliding fastener d901 is located between the end cap fastening part d802 and the side wall of the dust cup body d1. When the sliding fastener d901 slides to the right, it pushes the end cap fastening part d802 to the right, thus disengaging it from the outer wall of the dust cup body d1. For example... Figure 15 As shown, the sliding fastener d901 is slidably connected to the power supply housing f101. Figure 13 From this angle, the bottom surface of the power supply housing f101 is provided with a sliding groove f1011, and the sliding fastener d901 is slidably connected in the sliding groove f1011.

[0115] Among them, such as Figure 13 , Figure 16 As shown, the dust cup end cap d8 has an end cap sealing protrusion d805 on the side facing the dust collection chamber d4. The end cap sealing protrusion d805 is embedded in the bottom opening of the dust cup inner cylinder d10. When the dust cup end cap d8 is fastened and closed, the end cap sealing protrusion d805 just closes the bottom opening of the dust cup inner cylinder d10, so that the dust cup inner cylinder d10 and the inner wall of the dust cup form an annular cyclone separation space.

[0116] Based on the above embodiments, as a further limiting embodiment, such as... Figure 15 , Figure 16 As shown, the sliding fastener d901 is slidably connected to the handheld vacuum cleaner. The sliding fastener d901 has a locking position close to the dust cup body d1 and an unlocking position away from the dust cup body d1.

[0117] like Figure 15 As shown, the locking position of the sliding fastener d901 is the position where the sliding fastener d901 is located between the end cap fastening part d802 and the outer wall of the dust cup body d1, and the unlocking position of the sliding fastener d901 is the position where the sliding fastener d901 slides to the right and pushes open the end cap fastening part d802.

[0118] The structure of the dust cup inner cylinder d10 is not specifically limited. In this embodiment, it is combined with... Figure 2 , Figure 13 , Figure 15 As shown, the dust cup inner cylinder d10 includes an inner cylinder guide section d1001 and an inner cylinder extension section d1002. The inner cylinder guide section d1001 is located within the area surrounded by the dust cup filter d2. After the airflow is purified and separated between the inner wall of the dust collection chamber d4 and the dust cup filter d2, the airflow passes through the dust cup filter d2 and enters the space between the dust cup filter and the dust cup inner cylinder d10. Because the vacuum motor c1 creates a negative pressure above the dust collection chamber d4, the airflow rises along the inclined inner cylinder guide section d1001 after passing through the dust cup filter d2, and then enters the guide cone c203. The inner cylinder guide section d1001 forms a seal on the side facing the motor base d3. The inner cylinder extension section d1002 extends further towards the dust cup end cap d8 at the bottom of the dust cup and is sealed by the end cap sealing protrusion d805 on the dust cup end cap d8.

[0119] Based on the above embodiments, as a further limiting embodiment, such as... Figure 15 As shown, the end cap fastening part d802 is provided with a transmission protrusion d8022, which protrudes into the sliding path of the sliding fastener d901. The sliding fastener d901 includes a sliding fastener limiting end d903, which is located upstream of the transmission protrusion d8022. A gap is formed between the transmission protrusion d8022 and the outer wall of the dust cup body d1 to accommodate the sliding fastener limiting end d903. During the movement of the sliding fastener limiting end d903 towards the unlocked position, it contacts the transmission protrusion d8022 and further pushes the transmission protrusion d8022 to unlock the end cap fastening part d802.

[0120] Based on the above embodiments, as a further limiting embodiment, such as... Figure 15 As shown, the surface of the transmission protrusion d8022 facing the sliding buckle limiting end d903 is an inclined transmission guide surface d8023.

[0121] Specifically, such as Figure 15 As shown, the transmission guide surface d8023 can play a guiding role during the sliding of the buckle to the right. In this embodiment, the end cover fastening part d802 is made of a material with a certain elastic deformation capability, such as metal or plastic. While being pushed to the right by the buckle, the end cover fastening part d802 can also rotate and deform to the right as a whole under the guidance of the inclined surface, which is more conducive to the smooth disengagement and unlocking of the end cover fastening part d802.

[0122] Based on the above embodiments, as a further limiting embodiment, such as... Figure 15 , Figure 18 As shown, the sliding fastener d901 is provided with a sliding fastener limiting groove, and the transmission protrusion d8022 is embedded in the sliding fastener limiting groove. The groove wall of the sliding fastener limiting groove can limit the movement of the transmission protrusion d8022 upstream and downstream respectively. Specifically, as shown... Figure 15 As shown, the sliding buckle limiting grooves form limiting positions on the left and right sides of the transmission protrusion d8022.

[0123] Furthermore, the sliding fastener d901 is provided with a sliding fastener limiting groove d906, and the transmission protrusion d8022 is embedded in the sliding fastener limiting groove d906.

[0124] Based on the above embodiments, as a further limiting embodiment, such as... Figure 14 As shown, the dust cup end cap d8 includes: an end cap rotating part d801, rotatably connected to the dust cup body d1; and an end cap torsion spring d8011, disposed on the end cap rotating part d801. When the dust cup end cap d8 is in the closed state, the end cap torsion spring d8011 is in an elastic deformation state. After the user controls the sliding fastener d901 to slide and unlock, the dust cup end cap d8 automatically pops open under the action of the elastic force of the end cap torsion spring d8011, further improving the convenience of one-button operation for the user.

[0125] Based on the above embodiments, as a further limiting embodiment, such as... Figure 15 , Figure 17 As shown, the dust cup end cap d8 further includes: an end cap fastening part d802, the end cap fastening part d802 having a dust cup locking protrusion d803 protruding toward the outer wall of the dust cup body d1; the outer wall of the dust cup body d1 is provided with an end cap buckle d8021.

[0126] Based on the above embodiments, as a further limiting embodiment, such as... Figure 14 , Figure 15As shown, the dust cup body d1 is provided with a dust cup guide wall d804, located at the opening of the dust cup body d1 facing the dust cup end cap d8. The dust cup guide wall d804 bends inwards from the dust cup body d1, causing the cross-sectional area at the dust cup opening to gradually decrease along the direction close to the dust cup end cap d8. On the side facing the dust collection chamber d4, the guide wall forms an arc-shaped guide surface. After the dust cup end cap d8 is opened, the dust and dirt inside the dust collection chamber d4 slides down along the guide wall, and the cross-sectional area of ​​the guide wall gradually decreases along the direction close to the bottom opening of the dust cup body d1, causing the dust and dirt to tend to converge towards the center of the dust cup opening during the falling process, preventing the dust and dirt from spreading during the falling process.

[0127] Based on the above embodiments, as a further limiting embodiment, such as... Figure 14 , Figure 15 As shown, the dust cup guide wall d804 forms a clearance space on the side facing away from the dust collection chamber d4 inside the dust cup body d1.

[0128] Specifically, such as Figure 14 As shown, the portion of the guide wall facing to the left forms a space with the dust cup body d1 to accommodate the rotating part d801 of the end cap, combined with... Figure 17 The rotating part of the end cap and the end cap torsion spring d8011 located on the rotating part d801 are both installed in the clearance space formed by the guide wall, making the overall shape of the equipment more regular. Furthermore, as... Figure 15 As shown, the portion of the guide wall facing to the right forms a space to accommodate the end cap fastening part d802, making the overall shape of the equipment more regular.

[0129] Based on the above embodiments, as a further limiting embodiment, such as... Figure 13 , Figure 16 As shown, the sliding fastener assembly d9 further includes a sliding fastener spring d902, disposed on the moving path of the sliding fastener d901. The sliding fastener spring d902 improves user feedback during operation and automatically resets after user operation. After the sliding fastener d901 resets, the sliding limit end d903 of the sliding fastener d901 returns to the locked position. When the dust cup end cap d8 is re-fastened onto the opening at the bottom of the dust cup body d1, the end cap fastening part d802 returns to the downstream position of the sliding fastener d901. The downstream position of the sliding fastener d901 is based on the direction of movement of the sliding fastener d901 from the locked position to the unlocked position.

[0130] Based on the above embodiments, as a further limiting embodiment, such as... Figure 18 As shown, the sliding fastener d901 is provided with a sliding fastener touch groove d904. The sliding fastener touch groove d904 facilitates user operation of the sliding fastener d901.

[0131] Based on the above embodiments, as a further limiting embodiment, such as... Figure 18 As shown, a flange pad d905 is provided inside the sliding contact groove d904. The flange pad d905 can increase the contact area between the user and the sliding fastener d901, and also increase the force area during the user's control of the sliding fastener d901, thereby improving the user experience.

[0132] Based on the above embodiments, as a further limiting embodiment, such as... Figure 1 As shown, the handheld vacuum cleaner further includes: a handle assembly b, disposed on the main housing a; the main housing a includes: a whole machine exhaust port a102, the whole machine exhaust port a102 being disposed in either direction toward the two sides of the handle assembly b.

[0133] Specifically, such as Figure 1 As shown, the main body of the handheld vacuum cleaner consists of a dust cup assembly d at the bottom, a suction assembly c located on the dust cup assembly d, and a vacuum motor c1 inside the suction assembly c that provides power for the suction function of the entire machine. Furthermore, combined with... Figure 1 , Figure 3 , Figure 4 The motor housing c2 has a motor air outlet channel c204 that extends to the right at an angle, and a motor exhaust channel c202 that is connected downstream of the motor air outlet channel c204. Therefore, the main housing a has a lateral protrusion a104 that protrudes to the right.

[0134] Furthermore, the lateral protrusion a104 is provided with a whole unit exhaust vent a102. The whole unit exhaust vent a102 is oriented to the side to avoid direct airflow towards the user, thereby improving the user experience.

[0135] Specifically, such as Figure 1 , Figure 19 , Figure 20 As shown, the opening of the air intake assembly d3 faces the area that needs to be cleaned. Figure 20 From the perspective of [the viewpoint], the exhaust vents of the steam rack exhaust air to both sides of the plane Y-Y.

[0136] Based on the above embodiments, as a further limiting embodiment, such as... Figure 1 -3. Figure 19 As shown, the handheld vacuum cleaner also includes a power supply assembly f, which includes a power supply housing f101. One end of the power supply housing f101 is connected to the main unit housing a, and the other end extends parallel to the lateral protrusion a104.

[0137] Based on the above embodiments, as a further limiting embodiment, such as... Figure 1 As shown, the handle assembly b connects the lateral protrusion a104 to the power assembly f. Specifically, as... Figure 3 As shown, the power supply assembly f contains circuit components, and the handle assembly b has mounting space inside, allowing the control terminals of the circuit components to be arranged within the handle assembly b. Furthermore, the handle assembly b has a switch button a101 on the side facing the main unit housing a.

[0138] Based on the above embodiments, as a further limiting embodiment, such as... Figure 1 , Figure 3 As shown, the handle assembly b is tilted. The tilted handle assembly b allows the user to maintain a more comfortable tilted hand position, improving the user experience.

[0139] Specifically, such as Figure 3 As shown, X-X is the tilt axis in the direction of handle tilt. Figure 3 From this perspective, the handle assembly b is tilted towards the air inlet assembly d3, and the extension direction of the air inlet assembly d3 is where the vacuum cleaner's nozzle is located. Therefore, when cleaning with the handheld vacuum cleaner, the user can tilt it towards the area that needs cleaning, improving the user experience. Figure 1 From this perspective, the end of the handle assembly b connected to the lateral protrusion a104 at the top is the first end b101 of the handle, and the end of the handle assembly b connected to the power component f at the bottom is the second end b102 of the handle. The first end b101 of the handle is located to the left of the second end b102 of the handle.

[0140] Furthermore, the power supply component f is parallel to the lateral protrusion a104, and an indicator light f102 is provided on the side of the power supply component f facing the lateral protrusion a104.

[0141] Based on the above embodiments, as a further limiting embodiment, such as... Figure 6 As shown, the airflow generator includes a vacuum motor c1; the handheld vacuum cleaner also includes a motor base c3, which is mounted on the motor housing c2, and the motor base c3 and the motor housing c2 form an assembly space for mounting the vacuum motor c1.

[0142] Based on the above embodiments, as a further limiting embodiment, such as... Figure 7 , Figure 8As shown, the handheld vacuum cleaner further includes a motor seal c4, disposed within the motor housing c2, and sandwiched between the motor housing c2 and the vacuum motor c1. The vacuum motor c1 is fixed by the upper and lower sides of the vacuum motor c1 via the motor housing c2 and the motor base c3, respectively. The motor seal c4 is sandwiched between the vacuum motor c1 and the motor housing c2. On one hand, the motor seal c4 fills the gap between the vacuum motor c1 and the motor housing c2, reducing the structural gap between the motor cover and the vacuum motor c1, allowing it to integrate with the motor cover as a whole when the vacuum motor c1 is operating. On the other hand, when the vacuum motor c1 vibrates, the motor seal c4, which is in close contact with the vacuum motor c1, is compressed and deformed, reducing the transmission of vibration to the motor housing c2, thereby further reducing the noise generated by the vacuum motor c1 during operation. In existing technologies, the noise generated by the vacuum motor C1 is mainly due to two factors: firstly, the vacuum motor C1 itself vibrates during operation, generating noise; secondly, the vibration between the vacuum motor C1 and other components connected to it further contributes to the noise. This solution uses a motor seal C4 to prevent direct contact between the vacuum motor C1 and the motor housing C2, thus eliminating the vibration generated by the vacuum motor C1 within the motor housing C2. The impact range of the vibration generated by the vacuum motor C1 is reduced to the assembly space, thereby significantly reducing the noise emitted by the vacuum motor C1 during operation and solving the problem of noise generated by the vibration of the vacuum motor C1 in existing vacuum cleaners.

[0143] Specifically, the top of the motor seal c4 has a ventilation area c403 corresponding to the motor air vent c201. The motor cover refers to the overall structure formed by the motor housing c2 and the motor base c3 for mounting the vacuum motor c1. The opening at the top of the motor cover is the motor air vent c201, and a ventilation grille c2011 is provided on the motor air vent c201. The ventilation grille c2011 prevents the user from putting their hands inside the motor cover. Figure 2 - Figure 4 As shown, a motor cover sealing ring c6 is provided on the outer sleeve of the motor cover. When the motor cover is assembled inside the main unit housing a, the motor cover sealing ring c6 is sandwiched between the inner wall of the main unit housing a and the motor cover.

[0144] Based on the above embodiments, as a further limiting embodiment, such as... Figure 8As shown, the motor seal c4 includes: a base pad c401, which is attached to the surface of the motor housing c2 facing the motor base c3; and a wrapping wall c402, which is disposed on the base pad c401 and extends towards the motor base c3, sandwiched between the vacuum motor c1 and the inner wall of the motor housing c2. The wrapping wall c402 can further fill the gap between the vacuum motor c1 and the inner wall of the motor housing c2, further reducing the impact of the operating vibration of the vacuum motor c1 on the external environment.

[0145] Based on the above embodiments, as a further limiting embodiment, such as... Figure 8 - Figure 11 As shown, the base damping component c5 is supported between the motor base c3 and the vacuum motor c1. The base damping component c5, sandwiched between the bottom of the vacuum motor c1 and the motor base c3, further weakens the transmission of vibration from the vacuum motor c1 to the outside during operation, greatly reducing the impact of the vacuum motor c1's vibration on the whole.

[0146] Based on the above embodiments, as a further limiting embodiment, such as... Figure 8 - Figure 11 As shown, the air guide cone c203 has a conical support leg c2033 at one end near the motor base c3. A support leg c302 extends from the motor base c3, directly opposite the conical support leg c2033. Airflow enters through the side outlet c2031 at the top of the air guide cone c203, then adheres to the inner wall of the air guide cone c203 and moves towards the bottom of the air guide cone c203, finally entering the motor housing c2. During the airflow process, it collides with the air guide cone c203, causing the air guide cone c203 to vibrate during operation. The motor base c3 supports the support leg of the air guide cone c203, thus stabilizing the air guide cone c203 and reducing its vibration.

[0147] Based on the above embodiments, as a further limiting embodiment, such as... Figure 8 - Figure 11 As shown, the base damping component c5 includes a foot damping part c503, extending between the conical foot c2033 and the foot support part c302. The foot damping part c503 can eliminate the vibration of the air guide cone c203 through its own deformation, reducing the transmission of the vibration of the air guide cone c203 to the base.

[0148] Based on the above embodiments, as a further limiting embodiment, such as... Figure 8 - Figure 11As shown, the support leg damping part c503 includes at least two unit damping pads c5031, which are stacked and sandwiched between the conical support leg c2033 and the support leg support part c302. Multiple unit damping pads c5031 can further improve the damping performance of the support leg damping part c503.

[0149] Based on the above embodiments, as a further limiting embodiment, such as... Figure 8 - Figure 11 As shown, the support leg damping part c503 further includes a buffer pad c5032, which is supported between adjacent unit damping pads c5031. The buffer pad c5032 can further improve the damping performance of the support leg damping part c503. Furthermore, under the same stress conditions, the buffer pad c5032 exhibits greater elastic deformation than the support leg damping part c503. Therefore, when the buffer pad c5032 is subjected to vibration and impact, it deforms on its own, which can reduce the deformation of the unit damping pad c5031 and improve the damping performance of the support leg damping part c503.

[0150] Based on the above embodiments, as a further limiting embodiment, such as... Figure 8 - Figure 11 As shown, the vacuum motor c1 has a motor foot c101 on the side facing the motor base c3, and the motor base c3 has a foot fitting part c301 suitable for supporting the motor foot c101.

[0151] Based on the above embodiments, as a further limiting embodiment, such as... Figure 8 - Figure 11 As shown, the base damping component c5 includes a foot damping part c502, one end of which is supported on the foot mating part c301, and the other end has a slot suitable for insertion into the motor foot c101. The foot mating part c301 in the motor base c3 is used to support and fix the vacuum motor c1. When the vacuum motor c1 is working, it vibrates. The vibration is transmitted to the foot damping part c502 and is amplified, eliminating most of the vibration when the vacuum motor c1 is working. This greatly reduces the impact of the vibration of the vacuum motor c1 on the motor base c3, confining the vibration of the vacuum motor c1 within the motor cover, thereby reducing the transmission of noise to the outside.

[0152] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A motor cover, characterized in that, include: The motor housing (c2) has a mounting cavity formed therein suitable for embedding an airflow generator; The motor air comb (c201) is located on the top of the motor housing (c2); An assembly opening is provided at the bottom of the motor housing (c2); The motor air outlet (c205) is located on the side of the motor housing (c2); A motor base (c3) is mounted on the motor housing (c2), and the motor base (c3) and the motor housing (c2) form an assembly space for mounting the airflow generator; The motor housing (c2) is provided with a motor seal (c4), which is sandwiched between the motor housing (c2) and the airflow generator. The top of the motor seal (c4) is provided with a ventilation area (c403) corresponding to the part of the motor air comb (c201). The motor seal (c4) includes: a base pad (c401) that is attached to the surface of the motor housing (c2) facing the motor base (c3); A wrapping wall (c402) is provided on the base pad (c401), the wrapping wall (c402) extends toward the motor base (c3), and the wrapping wall (c402) is sandwiched between the airflow generator and the inner wall of the motor housing (c2).

2. The motor cover according to claim 1, characterized in that, The motor cover also includes: An air outlet channel (c204) is provided on the air outlet (c205) of the motor, and the air outlet channel (c204) extends away from the motor housing (c2).

3. The motor cover according to claim 2, characterized in that, The motor air outlet channel (c204) is set at an angle.

4. The motor cover according to claim 3, characterized in that, The motor air outlet duct (c204) includes: The motor exhaust port (c2022) extends towards the top of the motor housing (c2) from the motor exhaust channel (c204), and the height of the motor exhaust port (c2022) is higher than the height of the motor comb port (c201).

5. The motor cover according to claim 4, characterized in that, The motor cover also includes: The motor exhaust duct (c202) is located downstream of the motor air outlet duct (c204), and the motor exhaust port (c2022) is located on the motor exhaust duct (c202).

6. The motor cover according to claim 5, characterized in that, The motor exhaust duct (c202) is arranged in a horizontal direction.

7. The motor cover according to claim 5, characterized in that, The length direction of the motor exhaust channel (c202) is perpendicular to the axis of the mounting cavity, or the angle between the length direction of the motor exhaust channel (c202) and the axis of the mounting cavity is not greater than 45°.

8. The motor cover according to any one of claims 2-7, characterized in that, The motor air outlet channel (c204) is equipped with an exhaust sponge (c2021).

9. The motor cover according to claim 8, characterized in that, The motor air outlet channel (c204) has an opening, and an air duct cover (c206) is fitted onto the opening.

10. The motor cover according to any one of claims 1-7, 9, characterized in that, The motor air outlet duct (c204) is welded to the motor housing (c2).

11. A handheld vacuum cleaner, characterized in that: include: The motor cover according to any one of claims 1-10; A vacuum motor (c1) is installed inside the motor housing.

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