A hand-held vacuum cleaner

Abstract

The application provides a handheld dust collector, comprising: a main machine shell; an air flow generator arranged in the main machine shell, the air flow generator being used for forming a negative pressure in the main machine shell, and the air flow generator and the main machine shell constituting a channel for air flow; and a dust separator arranged in the main machine shell, the dust separator being located between the air flow generator and the main machine shell and surrounding the air flow generator. When the dust separator surrounds the air flow generator, the height of the air flow generator and the height of the dust separator partially overlap, so that the total height of the assembled dust separator and air flow generator is less than the sum of the height of the dust separator and the height of the air flow generator. Compared with the air flow generator and the dust separator arranged separately in the prior art, the height of the main machine shell can be obviously reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dust separation device structure, and particularly relates to a handheld dust collector. BACKGROUND

[0002] The dust collector is a commonly used household cleaning appliance. With the development of technology, the dust collector has developed from a traditional large device into a small device that can be held by a user.

[0003] The working principle of the dust collector is that the dust collector has an airflow generator inside. The airflow generator forms a lower air pressure inside the dust collector relative to the air inlet, so that the air inlet of the dust collector has suction, thereby sucking dust and airflow into the dust collector. The dust collector has a dust separation filter inside, which filters the mixed dust in the airflow, and re-delivers clean air to the external environment.

[0004] Since the main core components in the dust collector device are the airflow generator and the dust separation filter, the airflow generator and the separation filter in the prior art occupy space in height, respectively, resulting in height stacking of the airflow generator and the separation filter in the height direction, thereby increasing the height of the dust collector. SUMMARY

[0005] Therefore, the technical problem to be solved by the present application is to overcome the defect that the airflow generator and the separation filter are stacked in height in the prior art, thereby increasing the height of the dust collector, and to provide a handheld dust collector.

[0006] A handheld dust collector comprises:

[0007] A main machine shell;

[0008] An airflow generator is arranged in the main machine shell, and the airflow generator is used to form a negative pressure in the main machine shell. A space gap is formed between the airflow generator and the main machine shell.

[0009] A dust separation device is arranged in the space gap, and the dust separation device surrounds the airflow generator and forms a mounting cavity suitable for assembling the airflow generator.

[0010] The airflow generator is arranged downstream of the dust separation device.

[0011] The center axis of the airflow generator is collinear with the center axis of the dust separation device.

[0012] The dust separation device comprises:

[0013] A motor shell is arranged in the main machine shell, and the airflow generator is arranged in the motor shell.

[0014] A wind guide cone is arranged between the motor housing and the main housing.

[0015] The cross-sectional area of the wind guide cone gradually increases along the flow direction of the airflow.

[0016] A lateral air outlet is arranged on the sidewall of the wind guide cone near the top of the wind guide cone.

[0017] The motor housing comprises:

[0018] A motor comb air outlet is arranged at the top of the motor housing.

[0019] A motor air outlet is arranged at the lower half of the motor housing, so that the airflow forms a zigzag path in the main housing in the height direction.

[0020] The height of the motor comb air outlet is not higher than the height of the lateral air outlet.

[0021] The wind guide cone further comprises:

[0022] A lateral air guide fin is arranged at the opening edge of the lateral air outlet, and the lateral air guide fin is tangent to the inner wall of the wind guide cone.

[0023] The inclination directions of adjacent lateral air guide fins are different.

[0024] The motor air outlet is arranged on the side of the airflow generator, and the motor housing is provided with a motor air outlet channel extending away from the motor air outlet.

[0025] The motor air outlet channel is arranged obliquely.

[0026] The height of the airflow flowing in the motor air outlet channel gradually increases.

[0027] The motor housing is provided with a motor air outlet, which is connected to the motor air outlet channel, and the height of the motor air outlet is not lower than the height of the motor comb air outlet.

[0028] The motor housing comprises:

[0029] A motor air outlet channel is arranged downstream of the motor air outlet channel, and the motor air outlet is arranged on the motor air outlet channel.

[0030] The motor air outlet channel is provided with:

[0031] An air outlet sponge is arranged upstream of the motor air outlet.

[0032] The motor air outlet channel is arranged in the horizontal direction.

[0033] The first filter is arranged between the lateral air outlet and the motor air outlet.

[0034] The second filter is arranged between the motor air outlet and the motor air outlet of the motor shell, or downstream of the motor air outlet.

[0035] The handheld dust collector further comprises:

[0036] A dust cup assembly comprising a dust cup body arranged upstream of the dust and dirt separator;

[0037] A dust cup filter screen arranged in the dust cup assembly.

[0038] The dust cup assembly further comprises:

[0039] An air inlet assembly arranged on the sidewall of the dust cup body, and a cyclone separation space formed between the dust cup filter screen and the inner wall of the dust cup body.

[0040] The dust cup assembly further comprises:

[0041] A dust cup inner cylinder, and a dust cup clean air duct formed between the dust cup inner cylinder and the dust cup filter screen, and an outlet of the dust cup clean air duct being communicated with the dust and dirt separator.

[0042] The dust and dirt separator is arranged at the top of the dust cup body and seals the top opening of the dust cup body.

[0043] The bottom of the dust cup body is provided with a cleaning opening, and a dust cup end cover is movably connected to the cleaning opening.

[0044] The dust cup end cover is rotationally connected to the dust cup body.

[0045] The handheld dust collector further comprises:

[0046] A slide buckle assembly comprising a slide buckle member movably connected to the handheld dust collector;

[0047] The dust cup end cover comprises:

[0048] An end cover buckling portion, the end cover buckling portion being located on the movement path of the slide buckle member, and the end cover buckling portion being disengaged from the dust cup body when moving in the movement direction of the slide buckle member.

[0049] The slide buckle member is slidably connected to the handheld dust collector, and the slide buckle member has a locking position close to the dust cup body and an unlocking position away from the dust cup body.

[0050] The end cover buckling portion is provided with:

[0051] A transmission protrusion protruding towards the sliding path of the slide buckle member;

[0052] The sliding buckle assembly comprises:

[0053] A sliding buckle limiting end is arranged upstream of the transmission protrusion.

[0054] The surface of the transmission protrusion facing the sliding buckle limiting end is an inclined transmission guide surface.

[0055] The sliding buckle assembly is provided with:

[0056] A sliding buckle limiting groove, in which the transmission protrusion is arranged.

[0057] The dust cup end cover comprises:

[0058] An end cover rotating part is rotatably connected to the dust cup body.

[0059] An end cover torsional spring is arranged on the end cover rotating part.

[0060] The dust cup end cover further comprises:

[0061] An end cover buckling part, which has a dust cup locking protrusion protruding towards the outer wall of the dust cup body.

[0062] The outer wall of the dust cup body is provided with an end cover buckle.

[0063] The dust cup body is provided with:

[0064] A dust cup guide wall is arranged at the opening end of the dust cup body facing the dust cup end cover, and the dust cup guide wall is curved towards the inside of the dust cup body, so that the cross-sectional area of the opening of the dust cup gradually decreases in the direction close to the dust cup end cover.

[0065] The dust cup guide wall forms a space on the side away from the dust collection cavity inside the dust cup body.

[0066] The sliding buckle assembly further comprises:

[0067] A sliding buckle spring is arranged on the moving path of the sliding buckle assembly.

[0068] The sliding buckle assembly is provided with a sliding buckle touch control groove.

[0069] The sliding buckle touch control groove is provided with a flange pad.

[0070] The handheld dust collector further comprises:

[0071] A handle assembly is arranged on the main machine shell.

[0072] The main machine shell comprises:

[0073] An air outlet of the whole machine is arranged towards any direction of two sides of the handle assembly.

[0074] The main machine housing comprises:

[0075] A lateral protrusion protrudes towards the handle assembly, and the air outlet of the whole machine is arranged on the lateral protrusion.

[0076] An upstream of the air outlet of the whole machine is provided with a second filter.

[0077] The handheld dust collector further comprises:

[0078] A power supply assembly comprises a power supply shell, one end of which is connected to the main machine housing, and the other end of which extends parallel to the lateral protrusion.

[0079] The handle assembly is connected to the lateral protrusion and the power supply assembly.

[0080] The handle assembly is arranged obliquely.

[0081] The handle assembly is provided with a switch button towards one side of the main machine housing.

[0082] The airflow generator comprises:

[0083] A vacuum motor;

[0084] The handheld dust collector further comprises:

[0085] A motor base is assembled on the motor housing, and an assembly space for mounting the vacuum motor is formed between the motor base and the motor housing.

[0086] The handheld dust collector further comprises:

[0087] A motor seal is arranged in the motor housing, and the motor seal is clamped between the motor housing and the vacuum motor.

[0088] The motor seal comprises:

[0089] A basic pad layer is attached to a surface of the motor housing towards the motor base;

[0090] A wrapping wall is arranged on the basic pad layer, and the wrapping wall extends towards the motor base, and the wrapping wall is clamped between the vacuum motor and an inner wall of the motor housing.

[0091] A base shock-absorbing piece is supported between the motor base and the vacuum motor.

[0092] The conical foot of the air guide cone is arranged at one end close to the motor base, and the motor base extends a foot support part opposite to the conical foot.

[0093] The base damping part comprises:

[0094] The foot damping part extends between the conical foot and the foot support part.

[0095] The foot damping part comprises:

[0096] At least two unit damping pads are arranged between the conical foot and the foot support part.

[0097] The foot damping part further comprises:

[0098] A buffer pad layer is supported between adjacent unit damping pads.

[0099] The vacuum motor is provided with a motor foot base on one side close to the motor base, and the motor base is provided with a foot base matching part adapted to support the motor foot base.

[0100] The base damping part comprises:

[0101] The foot base damping part is supported on the foot base matching part at one end and has a slot adapted to be inserted into the motor foot base at the other end.

[0102] The technical scheme of the present application has the following advantages:

[0103] 1. The present application provides a handheld dust collector, comprising: a main machine shell; an air flow generator arranged in the main machine shell, the air flow generator being used to form a negative pressure in the main machine shell, and a space gap being formed between the air flow generator and the main machine shell; and a dust and dirt separator arranged in the space gap, the dust and dirt separator surrounding the air flow generator and forming a mounting cavity adapted to fit the air flow generator.

[0104] When the dust and dirt separator surrounds the air flow generator, the height of the air flow generator and the height of the dust and dirt separator partially overlap, so that the total height of the dust and dirt separator and the air flow generator after fitting is less than the sum of the height of the dust and dirt separator and the height of the air flow generator. Compared with the air flow generator and the dust and dirt separator arranged separately in the prior art, the height of the main machine shell can be significantly reduced. On the other hand, the dust and dirt separator is installed in the space gap formed between the main machine shell and the air flow generator, without affecting the normal ventilation requirement of the air flow generator, further making full use of the space structure inside the main machine shell, improving the compactness of the main machine part structure of the handheld dust collector, and making the volume of the main machine part of the handheld dust collector smaller, more convenient for users to use, and improving user experience.

[0105] 2. The handheld vacuum cleaner of claim 1, wherein the airflow generator is disposed downstream of the dust separator.

[0106] The airflow mixed with dust and impurities first passes through the dust separator, so that the dust and impurities are separated from the airflow, and then the clean airflow enters the airflow generator, thereby protecting the airflow generator from dust accumulation.

[0107] 3. The handheld vacuum cleaner of claim 1, wherein the airflow generator is collinear with a central axis of the dust separator.

[0108] The combination of the airflow generator and the dust separator is more compact, thereby further reducing the space occupied by the overall structure of the dust separator and the airflow generator.

[0109] 4. The handheld vacuum cleaner of claim 1, wherein the dust separator comprises: a motor housing disposed in the main housing, and the airflow generator is disposed in the motor housing; and a wind guide cone disposed between the motor housing and the main housing.

[0110] The motor housing is used to form a cavity in which a vacuum motor is embedded, and the wind guide cone is disposed outside the motor housing and surrounds the vacuum motor.

[0111] 5. The handheld vacuum cleaner of claim 1, wherein a cross-sectional area of the wind guide cone gradually increases along a flow direction of the airflow, and the wind guide cone comprises: a lateral air outlet disposed on a side wall of the wind guide cone and located close to a top portion of the wind guide cone.

[0112] During the process of the airflow rising along the inner wall of the wind guide cone from the bottom of the wind guide cone, the airflow flows out laterally when reaching the lateral air outlet formed on the side wall of the wind guide cone. This prevents the airflow from rising further when reaching a height near the air inlet of the top portion of the motor housing.

[0113] 6. The handheld vacuum cleaner of claim 1, wherein the motor housing comprises: a motor air outlet disposed on a top portion of the motor housing; and a motor air outlet disposed on a lower half of the motor housing, so that the airflow forms a zigzag path in the main housing in a height direction.

[0114] When the airflow forms the zigzag flow path, the noise generated in the process of the zigzag path movement not only generates noise, but the noise reflection also cancels out part of the noise, thereby reducing the noise.

[0115] 7. The handheld vacuum cleaner of claim 1, wherein a height of the motor air outlet is not higher than a height of the lateral air outlet.

[0116] Since the air guide cone is arranged around the vacuum motor, the motor comb air outlet at the top of the vacuum motor is surrounded by the air guide cone, and since the height of the motor comb air outlet is relatively lower than the lateral air outlet, a groove-shaped space surrounded by the air guide cone is formed above the motor comb air outlet, and a first filter can be further installed in the groove-shaped space to further filter and purify the airflow before entering the vacuum motor. Moreover, the vacuum motor and the air guide cone are originally components installed in the main machine shell, and a new mounting structure is formed between the components, which makes the assembly of the components more compact and further reduces the volume of the main machine part of the handheld vacuum cleaner.

[0117] 8. The handheld vacuum cleaner provided by the present application, wherein the air guide cone further comprises: a lateral air guide sheet arranged at the opening edge of the lateral air outlet, and the lateral air guide sheet is tangent to the inner wall of the air guide cone.

[0118] The lateral air guide sheet can guide the direction of the airflow flowing out of the air guide cone.

[0119] 9. The handheld vacuum cleaner provided by the present application, wherein the motor air outlet is arranged on the side of the airflow generator, and a motor air outlet channel extending away from the motor air outlet is arranged on the motor shell.

[0120] The direction of the airflow flowing in the vacuum motor is downward from the top of the vacuum motor, so the motor air outlet is located on the side wall of the vacuum motor, and the motor air outlet channel extending away from the motor air outlet, when the airflow moves downward in the vacuum motor, the airflow is diverted at the motor air outlet, i.e. the flow path of the airflow is further bent, further increasing noise reflection and reducing noise.

[0121] 10. The handheld vacuum cleaner provided by the present application, wherein the height of the airflow flowing in the motor air outlet channel gradually increases.

[0122] The flow path of the airflow flowing out of the air outlet is bent towards the top of the vacuum motor, further increasing noise reflection and reducing noise.

[0123] 11. The handheld vacuum cleaner provided by the present application, wherein a motor exhaust outlet is arranged on the motor shell, the motor exhaust outlet communicates with the motor air outlet channel, and the height of the motor exhaust outlet is not lower than the height of the motor comb air outlet.

[0124] The height of the motor exhaust outlet is not lower than the height of the motor comb air outlet, which means that the airflow flowing out of the lower half of the vacuum motor is bent towards the top of the vacuum motor, not only increasing noise reflection and reducing noise, but also lengthening the overall air duct length, the noise energy dissipates in the air duct, the overall air duct length is lengthened, the noise energy dissipation amount is increased, thereby reducing the overall working noise of the handheld vacuum cleaner.

[0125] 12. The handheld vacuum cleaner provided by the present application, the motor housing comprises: a motor exhaust channel, the motor exhaust channel is located downstream of the motor air outlet channel, and the motor exhaust port is arranged on the motor exhaust channel.

[0126] The motor exhaust channel can further lengthen the overall air duct, and the motor exhaust channel can also form a new turning angle with the motor exhaust channel, so that the flow path of the air flow is further turned, thereby further dissipating noise energy.

[0127] 13. The handheld vacuum cleaner provided by the present application, the motor exhaust channel is provided with: an exhaust sponge arranged upstream of the motor exhaust port.

[0128] The exhaust sponge can further filter the air before it flows out of the motor exhaust port.

[0129] 14. The handheld vacuum cleaner provided by the present application, a second filter is arranged between the motor air outlet and the motor exhaust port of the motor housing, or downstream of the motor exhaust port.

[0130] After the air flow flows out of the motor exhaust port, it enters between the overall housing and the motor exhaust channel, and the second filter is located between the overall housing and the exhaust channel, so that the air flow is further purified before being discharged from the vacuum cleaner.

[0131] 15. The handheld vacuum cleaner provided by the present application, the handheld vacuum cleaner further comprises: a dust cup assembly comprising a dust cup body arranged upstream of the dust separation device; and a dust cup filter screen arranged in the dust cup assembly.

[0132] The air flow inhaled by the vacuum cleaner first passes through the dust separation force of the dust cup filter screen in the dust cup assembly, and then enters the dust separation device for further purification.

[0133] 16. The handheld vacuum cleaner provided by the present application, the dust cup assembly further comprises: a dust cup inner cylinder, the dust cup inner cylinder and the dust cup filter screen form a dust cup clean air duct therebetween, and the outlet of the dust cup clean air duct communicates with the dust separation device.

[0134] The dust cup inner cylinder is located in the annular space surrounded by the dust cup filter screen, and the dust cup inner cylinder and the dust cup filter screen form a dust cup clean air duct therebetween. After the air flow is purified by the cyclone separation space, it is further purified by the dust cup filter screen, and then moves in the dust cup clean air duct to the direction of the dust separation device upward.

[0135] 17. The handheld vacuum cleaner provided by the present application, the bottom of the dust cup body is provided with a cleaning opening, and a dust cup end cover is movably connected to the cleaning opening.

[0136] The bottom of the dust cup body is provided with a cleaning opening, so that the dust remaining in the dust collection cavity can be automatically removed when the dust cup end cover is opened.

[0137] 18. The handheld dust collector provided by the present application further comprises: a slide buckle assembly, comprising a slide buckle member movably connected to the handheld dust collector; and the dust cup end cover comprises: an end cover buckle portion located on the movement path of the slide buckle member, and the end cover buckle portion is disengaged from the dust cup body when the end cover buckle portion moves in the movement direction of the slide buckle member.

[0138] When the end cover buckle portion buckles on the opening at the bottom of the dust cup body, the end cover buckle portion is located on the movement path of the slide buckle member, and when the slide buckle member slides past the end cover buckle portion, the end cover buckle portion is pushed to deform or displace, so that the end cover buckle portion is disengaged from the dust cup body. Under the action of gravity, the dust cup end cover rotates downward to open, thereby automatically shedding dust and dirt, and achieving one-key control to open the dust cup and automatically dump dust and dirt.

[0139] 19. The handheld dust collector provided by the present application, wherein the end cover buckle portion is provided with: a transmission protrusion protruding onto the sliding path of the slide buckle member; and the slide buckle member comprises: a slide buckle limiting end provided upstream of the transmission protrusion.

[0140] The transmission protrusion and the outer wall of the dust cup body form a gap for accommodating the slide buckle limiting end, and the slide buckle limiting end comes into contact with the transmission protrusion during movement to the unlocking position, and further pushes the transmission protrusion to drive the end cover buckle portion to unlock.

[0141] 20. The handheld dust collector provided by the present application, wherein the slide buckle member is provided with: a slide buckle limiting groove, and the transmission protrusion is embedded in the slide buckle limiting groove.

[0142] The groove walls of the slide buckle limiting groove can limit the transmission protrusion upstream and downstream, respectively.

[0143] 21. The handheld dust collector provided by the present application, wherein the dust cup end cover comprises: an end cover rotating portion rotatably connected to the dust cup body; and an end cover torsional spring provided on the end cover rotating portion.

[0144] When the dust cup end cover is in a closed state, the end cover torsional spring is in an elastically deformed state, and after the user controls the slide buckle member to slide and unlock, the dust cup end cover is automatically opened under the driving of the elastic force of the end cover torsional spring, thereby further improving the convenience of one-key control by the user.

[0145] 22. The handheld dust collector provided by the present application, wherein the dust cup body is provided with: a dust cup guide wall provided at the opening end of the dust cup body facing the dust cup end cover, and the dust cup guide wall is curved inwardly to the dust cup body, so that the cross-sectional area of the dust cup opening gradually decreases in the direction close to the dust cup end cover.

[0146] The guide wall forms a circular arc guide surface on the side facing the dust collecting cavity. When the dust cup end cover is opened, the dust in the dust collecting cavity slides along the guide wall, and the cross-sectional area of the guide wall gradually decreases in the direction close to the opening of the dust cup body bottom, so that the dust has a movement trend of gathering to the center of the dust cup opening during falling, preventing the dust from spreading during falling.

[0147] 23. The handheld dust collector provided by the present application, wherein the slide buckle assembly further comprises a slide buckle spring arranged on the moving path of the slide buckle.

[0148] The slide buckle spring can improve the feedback when the user operates, and can automatically reset after the user operates. After the slide buckle resets, the slide buckle limiting end of the slide buckle is restored to the locking position, and the end cover clamping part is restored to the downstream position of the slide buckle when the dust cup end cover is clamped on the opening of the dust cup body bottom. The downstream of the slide buckle is based on the movement direction of the slide buckle from the locking position to the unlocking position.

[0149] 24. The handheld dust collector provided by the present application, wherein the slide buckle is provided with a slide buckle touch control groove.

[0150] The slide buckle touch control groove facilitates the user to operate the slide buckle.

[0151] 25. The handheld dust collector provided by the present application, wherein the slide buckle touch control groove is provided with a flange pad.

[0152] The flange pad can increase the contact area between the user and the slide buckle, and can also increase the force area during the user controlling the slide buckle, thereby improving the user experience.

[0153] 26. The handheld dust collector provided by the present application, wherein the handle assembly is arranged in an inclined manner.

[0154] The handle assembly arranged in an inclined manner enables the user to maintain a more comfortable handheld posture in an inclined manner, thereby improving the user experience.

[0155] 27. The handheld dust collector provided by the present application, wherein the handheld dust collector further comprises a motor seal arranged in the motor housing, and the motor seal is clamped between the motor housing and the vacuum motor.

[0156] The vacuum motor is fixed by the upper and lower sides of the motor shell and the motor base respectively, and a motor sealing piece is arranged between the vacuum motor and the motor shell, which can compensate the gap between the vacuum motor and the motor shell, reduce the structural gap between the motor cover and the vacuum motor, and combine with the motor cover to form a whole when the vacuum motor works. On the other hand, when the vacuum motor vibrates, the motor sealing piece close to the vacuum motor is extruded and deformed, which can reduce the vibration transmission to the motor shell, thereby further reducing the noise generated by the vacuum motor when working. In the prior art, the main reasons for the noise generated by the vacuum motor are two aspects: one is that the vacuum motor vibrates when working, and the other is that the vibration between the vacuum motor and other components connected to the vacuum motor causes further noise. The motor sealing piece prevents the vacuum motor from directly contacting the motor shell, eliminates the vibration generated by the vacuum motor when working in the motor shell, reduces the vibration influence range of the vacuum motor when working to the assembly space, thereby greatly reducing the noise generated by the vacuum motor during working, and solving the problem of noise generated by the vacuum motor when working

[0157] 28. The handheld vacuum cleaner provided by the application, the motor sealing piece comprises: a basic pad layer attached to the surface of the motor shell facing the motor base; a wrapping wall arranged on the basic pad layer, the wrapping wall extending towards the motor base, and the wrapping wall being arranged between the vacuum motor and the inner wall of the motor shell.

[0158] The wrapping wall can further compensate the gap between the vacuum motor and the inner wall of the motor shell, and further reduce the influence of the vibration of the vacuum motor on the outside.

[0159] 29. The handheld vacuum cleaner provided by the application, a base damping piece supported between the motor base and the vacuum motor.

[0160] The base damping piece arranged between the bottom of the vacuum motor and the motor base further weakens the vibration transmission of the vacuum motor to the outside when working, so that the influence of the vibration of the vacuum motor on the whole vacuum cleaner is greatly reduced.

[0161] 30. The handheld vacuum cleaner provided by the application, the air guide cone is provided with a conical leg at one end close to the motor base, the motor base extends a leg supporting part, and the leg supporting part is opposite to the conical leg.

[0162] The air flow enters through the lateral air outlet at the top of the air guide cone, then sticks to the inner wall of the air guide cone and moves to the bottom of the air guide cone, and finally enters the motor housing. During the flow of the air flow, the air guide cone is collided, so that the air guide cone vibrates during operation. The motor base supports the air guide cone leg, which can stabilize the air guide cone and reduce the vibration of the air guide cone.

[0163] 31. The handheld vacuum cleaner provided by the present application, wherein the base damping member comprises a leg damping portion extending between the cone leg and the leg support portion.

[0164] The leg damping portion can eliminate the vibration of the air guide cone by deforming itself, and reduce the transmission of the vibration of the air guide cone to the base.

[0165] 32. The handheld vacuum cleaner provided by the present application, wherein the leg damping portion comprises at least two unit damping pads stacked and clamped between the cone leg and the leg support portion.

[0166] The plurality of unit damping pads can further improve the damping performance of the leg damping portion.

[0167] 33. The handheld vacuum cleaner provided by the present application, wherein the leg damping portion further comprises a buffer pad layer supported between adjacent unit damping pads.

[0168] The buffer pad layer can further improve the damping performance of the leg damping portion. On the other hand, under the same stress condition, the elastic deformation degree of the buffer pad layer is larger than that of the leg damping portion. Therefore, when the buffer pad layer is impacted by vibration, the buffer pad layer deforms itself to reduce the deformation of the unit damping pad, thereby improving the damping performance of the leg damping portion.

[0169] 34. The handheld vacuum cleaner provided by the present application, wherein the base damping member comprises a foot base damping portion having one end supported on the foot base supporting portion and the other end having a slot adapted to be inserted into the motor foot base.

[0170] The foot base supporting portion in the motor base is used to support and fix the vacuum motor. When the vacuum motor works, the vibration is transmitted to the foot base damping portion and is reduced. Most of the vibration of the vacuum motor during operation is eliminated, so that the influence of the vibration of the vacuum motor on the motor base is greatly reduced. The influence of the vibration of the vacuum motor is limited in the motor cover, thereby reducing the transmission of noise to the outside. BRIEF DESCRIPTION OF DRAWINGS

[0171] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained based on these drawings without creative labor.

[0172] Figure 1 A front view of the structure of the main part of the handheld dust collector;

[0173] Figure 2 A sectional view showing the internal structure of the main part;

[0174] Figure 3 A schematic view of the air duct structure showing the flow direction of the air flow in the main part;

[0175] Figure 4 A schematic view of the structure of the vacuum motor assembled in the motor cover;

[0176] Figure 5 A sectional view of the structure of the vacuum motor assembled in the motor cover;

[0177] Figure 6 A schematic view of the flow path of the air flow in the motor cover;

[0178] Figure 7 An exploded view of the installation structure of the vacuum motor and the motor cover;

[0179] Figure 8 An exploded view of the installation structure of the vacuum motor and the motor cover, showing another perspective view on the basis of Figure 7 ;

[0180] Figure 9 A schematic view of the structure of the base shock absorber assembled on the motor base;

[0181] Figure 10 A schematic view of the structure of the base shock absorber, showing the base shock absorber structure removed on the basis of Figure 9 ;

[0182] Figure 11 A perspective view showing the structure of the base shock absorber;

[0183] Figure 12 A perspective view showing the dust cup end cover located at the bottom of the main part;

[0184] Figure 13 A schematic view showing the structure of the dust cup end cover buckled on the opening at the bottom of the dust cup;

[0185] Figure 14 A Figure 2Fig. 6 is an enlarged view of the dust cup end cover through the end cover rotating part and the dust cup connecting structure at I;

[0186] Figure 15 Fig. 7 is an enlarged view of the end cover snap part and the slide snap part cooperating structure at II; Figure 13

[0187] Figure 16 Fig. 8 is a schematic view of the dust cup end cover structure being opened; Figure 13

[0188] Fig. 9 is a perspective view of the dust cup end cover structure; Figure 17

[0189] Fig. 10 is a perspective view of the slide snap part structure; Figure 18

[0190] Fig. 11 is a perspective view of the indicator position; Figure 19

[0191] Fig. 12 is a top view of the whole machine air outlet position. Figure 20 BRIEF DESCRIPTION OF THE DRAWINGS

[0192] a, main machine shell; a101, switch button; a102, whole machine air outlet; a103, second filter; a104, lateral protruding part;

[0193] b, handle assembly; b101, handle first end; b102, handle second end;

[0194] c, air suction assembly; c1, vacuum motor; c101, motor foot; c102, motor electric control wire; c2, motor shell; c201, motor comb air outlet; c2011, air dispersing grating; c202, motor air outlet channel; c2021, air outlet sponge; c2022, motor air outlet; c203, air guiding cone; c2031, lateral air outlet; c2032, lateral guiding piece; c2033, cone supporting leg; c204, motor air outlet channel; c205, motor air outlet; c206, air duct cover plate; c3, motor base; c301, foot cooperating part; c3011, shock absorbing bump; c302, supporting leg supporting part; c4, motor sealing member; c401, base cushion layer; c402, wrapping wall; c403, air permeable area; c5, base shock absorbing member; c501, annular shock absorbing part; c502, foot shock absorbing part; c503, supporting leg shock absorbing part; c5031, unit shock absorbing pad; c5032, cushion layer; c6, motor cover sealing ring; c7, first filter;

[0195]

[0196] ​​d, dust cup assembly; d1, dust cup body; d2, dust cup filter screen; d3, air inlet assembly; d4, dust collection cavity; d8, dust cup end cover; d801, end cover rotating part; d8011, end cover torsional spring; d802, end cover buckling part; d8021, end cover buckle; d8022, transmission protrusion; d8023, transmission guide surface; d803, dust cup locking protrusion; d804, dust cup guide wall; d805, end cover sealing protrusion; d9, slide buckle assembly; d901, slide buckle; d902, slide buckle spring; d903, slide buckle limiting end; d904, slide buckle touch recess; d905, flange cushion layer; d906, slide buckle limiting groove; d10, dust cup inner cylinder; d1001, inner cylinder air guide section; d1002, inner cylinder extension section;

[0197] f, power supply assembly; f101, power supply shell; f1011, slide buckle sliding groove; f102, indicator light;

[0198] h, connecting pipe assembly. DETAILED DESCRIPTION

[0199] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0200] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0201] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0202] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0203] Embodiment 1

[0204] The embodiment provides a handheld dust cleaner, such as Figure 1 Figure 3 As shown in the figure, it comprises a main machine shell a, an airflow generator arranged in the main machine shell a, the airflow generator is used for forming negative pressure in the main machine shell a, and a channel for airflow flowing is formed between the airflow generator and the main machine shell a; a dust separator is arranged in the main machine shell a, the dust separator is located between the airflow generator and the main machine shell a, and the dust separator surrounds 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, so that the total height of the assembled dust separator and the airflow generator is less than the sum of the height of the dust separator and the height of the airflow generator. Compared with the airflow generator and the dust separator arranged separately in the prior art, the height of the main machine shell a can be obviously reduced.

[0205] Specifically, as shown in the figure, the airflow generator is used for generating negative pressure, as shown in the figure, the left side of the main machine shell a has an air inlet assembly d3, and the airflow enters the handheld dust cleaner from the air inlet assembly d3, Figure 2 Figure 5 Figure 6 As shown in the figure, the main machine part of the handheld dust cleaner is shown, the function of the main machine part is to separate the airflow entering the main machine and the dust mixed in the airflow, and then discharge the clean airflow. As shown in the figure, the air inlet assembly d3 can be assembled with various suction heads. In order to facilitate the user to use, the air inlet assembly d3 can be assembled with a connecting pipe assembly h, and then various suction heads are assembled through the connecting pipe assembly h, so as to lengthen the length of the suction head to the main machine part of the handheld dust cleaner, facilitate the user to clean the position at high place, far place or low place, and adapt to different suction heads to clean the dust and impurities in the corner and gap. Among them, in the embodiment, the negative pressure generated by the airflow generator refers to the lower pressure relative to the pressure at the air inlet assembly d3, so as to generate suction at the air inlet assembly d3, and the mixture of airflow and dust and impurities is sucked into the handheld dust cleaner. Figure 1 Figure 1 Further, in combination with Figure 1 Further, in combination with

[0206] Figure 4 The airflow generator is arranged in the surrounding of the dust separator, the airflow generator and the dust separator have a certain range of overlap in the height direction, so as to reduce the total height of the assembled airflow generator and the dust separator, and the airflow generator is located inside the dust separator, so that the assembly structure between the airflow generator and the dust separator is more compact, and the volume of the main machine part of the handheld dust cleaner is further reduced. Figure 5

[0207] ​​​​​​In this embodiment, as shown in Figure 2 - Figure 8 The air flow generator is a vacuum motor c1, which generates negative pressure when working, as shown in Figure 6 The vacuum motor c1 is located in the middle of the dust separator, and under the driving of the vacuum motor c1, an air flow is formed flowing from the dust separator to the vacuum motor c1, in combination with Figure 3 , Figure 6 The dust separator is located between the main machine shell a and the vacuum motor c1, and the space between the main machine shell a and the vacuum motor c1 is a chamber with an annular cross section. In this embodiment, the vacuum motor c1 is embedded and installed in the middle of the dust separator, and the vacuum motor c1 and the dust separator form an integral structure. After the air flow enters the main machine shell a, an air flow is formed flowing from the outer ring of the annular chamber to the middle vacuum motor c1 under the integral structure of the vacuum motor c1 and the dust separator.

[0208] On the basis of the above-mentioned embodiment, as a further defined embodiment, as shown in Figure 6 The air flow generator is arranged downstream of the dust separator. The air flow mixed with dust and impurities first passes through the dust separator, so that the dust and impurities are separated from the air flow, and then the clean air flow enters the air flow generator, which can protect the air flow generator and prevent dust accumulation in the air flow generator.

[0209] Specifically, in combination with Figure 1 - Figure 3 , Figure 6 Under the driving of the vacuum motor c1, the air flow enters the main machine shell a from below the air flow generator and the dust separator, as shown in Figure 6 The air flow enters from the bottom of the dust separator, then flows out from the top of the dust separator, then flows from the outer dust separator to the inner air flow generator, enters from the top of the air flow generator, and then is discharged from below the air flow generator, forming a zigzag movement route from bottom to top, from outer ring to middle, and then from top to bottom.

[0210] On the basis of the above-mentioned embodiment, as a further defined embodiment, as shown in Figure 6 The center axis of the air flow generator is collinear with the center axis of the dust separator. The combination of the air flow generator and the dust separator is more compact, further reducing the space occupied by the overall structure of the dust separator and the air flow generator.

[0211] Specifically, as shown in Figure 5 , Figure 6As 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. As an alternative implementation, the central axes of the dust separator and the vacuum motor c1 are parallel to each other. As another alternative implementation, the straight line containing the central axes of the dust separator and the vacuum motor c1 intersects.

[0212] 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.

[0213] 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 6 As 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.

[0214] 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.

[0215] 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 constitute a whole inside the whole machine shell, the airflow from the airflow entering below the dust separator under the guide action of the arc outer surface of the motor base c3, to the smaller opening at the bottom of the air guide cone c203. The opening at the bottom of the air guide cone c203 is arranged around the edge of the arc surface of the motor base c3, so that the airflow is more easy to enter the air guide cone c203 for further dust separation.

[0216] On the basis of the above-mentioned embodiments, as further defined embodiments, as shown in Figure 6 - Figure 8 The cross-sectional area of the air guide cone c203 gradually increases along the flow direction of the airflow, the air guide cone c203 includes: a lateral air outlet c2031 arranged on the side wall of the air guide cone c203 near the top of the air guide cone c203. In the process of the airflow rising from the bottom of the air guide cone c203 along the inner wall of the air guide cone c203, the airflow flows out from the lateral air outlet c2031 arranged on the side wall of the air guide cone c203. Prevent the airflow from further rising when reaching the height of the air inlet at the top of the motor housing c2.

[0217] On the basis of the above-mentioned embodiments, as further defined embodiments, as shown in Figure 5 、 Figure 6 The motor housing c2 includes: a motor comb air outlet c201 arranged at the top of the motor housing c2; and a motor air outlet c205 arranged at the lower half of the motor housing c2, so that the airflow forms a zigzag path in the main machine shell a in the height direction. When the airflow forms a zigzag flow path, the noise generated in the zigzag path movement not only produces noise, but also the noise reflection can offset part of the noise, thereby reducing the noise.

[0218] Specifically, in Figure 6 the perspective view, the edge of the left side of the air guide cone c203 on the left side of the motor is an inclined line, and the right side of the air guide cone c203 is arranged in close contact with the outer surface of the motor housing c2, that is, the inner diameter of the air guide cone c203 gradually increases in the direction from bottom to top, the air guide cone c203 as a whole is inclined, and the direction of inclination is away from the vacuum motor c1. In Figure 6 the perspective view, the left air guide cone c203 is inclined to the left away from the vacuum motor c1, so that when the airflow flows along the inner wall of the air guide cone c203, the distance away from the center axis of the vacuum motor c1 increases more and more, thereby further improving the force ability of the air guide cone c203 to dust impurities.

[0219] The motor comb air inlet c201 is an opening on the top of the motor housing. The specific structure of the motor comb air inlet c201 is not limited. In this embodiment, the motor comb air inlet c201 is a circular opening structure penetrating through the top of the motor housing c2. Alternatively, the motor comb air inlet c201 can also be an opening array composed of multiple opening units.

[0220] Further, the opening edge of the motor comb air inlet c201 is provided with an arc-shaped airflow guide surface. The airflow guide surface can guide the airflow entering the interior of the motor housing.

[0221] Based on the above-mentioned embodiments, as a further defined embodiment, as shown in Figure 6 The height of the motor comb air inlet c201 does not exceed the height of the lateral air outlet c2031. Since the air guide cone c203 surrounds the vacuum motor c1, the motor comb air inlet c201 on the top of the vacuum motor c1 is surrounded by the air guide cone c203. Since the height of the motor comb air inlet c201 is relatively lower than the lateral air outlet c2031, a groove-shaped space surrounded by the air guide cone c203 is formed above the motor comb air inlet c201. A first filter c7 can be further installed in the groove-shaped space to further filter and purify the airflow before entering the vacuum motor c1. Moreover, the vacuum motor c1 and the air guide cone c203 are originally components installed in the main machine housing. The new installation structure between the components makes the assembly of the components more compact, further reducing the volume of the main machine part of the handheld vacuum cleaner. Alternatively, the height of the motor comb air inlet is the same as the height of the lateral air outlet c2031. Alternatively, the height of the motor comb air inlet is higher than the height of the lateral air outlet c2031.

[0222] Based on the above-mentioned embodiments, as a further defined embodiment, as shown in Figure 6 Figure 8 The air guide cone c203 further includes a lateral air guide sheet c2032 arranged at the opening edge of the lateral air outlet c2031, and the lateral air guide sheet is tangent to the inner wall of the air guide cone c203. The lateral air guide sheet c2032 can guide the direction of the airflow flowing out of the air guide cone c203.

[0223] Specifically, as shown in Figure 8 The inclination directions of adjacent lateral air guide sheets c2032 are different. In Figure 8 viewing each lateral air guide sheet on the air guide cone c203 in the counterclockwise direction, there is a uniform change in the inclination angle between adjacent lateral air guide sheets in the counterclockwise direction. In Figure 8 ​From the top of the motor shell c2, the top opening of the air guide cone c203 is directly opposite, when the air flows out from the side air outlet c2031 of the air guide cone c203, a counterclockwise rotating cyclone is formed under the guidance of the side air guide sheet, so that the air flow entering around the motor comb air outlet c201 is more uniform.

[0224] Further, the side air guide sheet does not directly point to the motor comb air outlet c201, so that the air flow flowing out from the side air outlet c2031 is uniformly mixed before entering the motor comb air outlet c201, so that the air flow entering the motor comb air outlet c201 is more uniform.

[0225] Among them, in the embodiment, the part of the motor shell c2 corresponding to the motor comb air outlet c201 is provided with a comb air grille, and the cyclone formed by the side air guide sheet under the guidance of the air guide cone c203 enters the motor comb air outlet c201 more uniformly after passing through the comb air grille.

[0226] On the basis of the above-mentioned embodiment, as a further defined embodiment, as shown in Figure 3 、 Figure 6 The motor air outlet c205 is arranged on the side of the airflow generator, and the motor shell c2 is provided with a motor air outlet channel c204 extending away from the motor air outlet c205. The direction of the airflow flowing in the vacuum motor c1 is downward from the top of the vacuum motor c1, so the motor air outlet c205 is located on the side wall of the vacuum motor c1, and the motor air outlet channel c204 extending away from the motor air outlet c205, when the airflow moves downward in the vacuum motor c1, the airflow is diverted at the motor air outlet c205, that is, the flow path of the airflow is further bent, further increasing noise reflection and reducing noise.

[0227] On the basis of the above-mentioned embodiment, as a further defined embodiment, as shown in Figure 6 The height of the airflow flowing in the motor air outlet channel c204 gradually increases. The flow path of the airflow flowing out of the air outlet is bent towards the top of the vacuum motor c1. Further increase the noise reflection, reduce the noise.

[0228] On the basis of the above-mentioned embodiment, as a further defined embodiment, as shown in Figure 6As shown in the figure, the motor casing c2 is provided with a motor exhaust port c2022, the motor exhaust port c2022 is communicated with the motor air outlet channel c204, and the height of the motor exhaust port c2022 is not less than the height of the motor comb air port c201. The height of the motor exhaust port c2022 is not less than the height of the motor comb air port c201, which means that after the airflow flows out from the lower part of the vacuum motor c1, it is bent towards the top of the vacuum motor c1. This not only increases the noise reflection and reduces the noise, but also lengthens the overall length of the air duct. The noise energy is dissipated in the air duct, the overall length of the air duct is lengthened, the amount of noise energy dissipation is increased, thereby reducing the overall working noise of the handheld vacuum cleaner. As an alternative embodiment, the height of the motor exhaust port c2022 is lower than the height of the motor comb air port c201.

[0229] On the basis of the above-mentioned embodiments, as a further defined embodiment, as shown in Figure 3 、 Figure 6 The motor casing c2 includes a motor exhaust channel c202, which is located downstream of the motor air outlet channel c204, and the motor exhaust port c2022 is provided on the motor exhaust channel c202. The motor exhaust channel c202 can further lengthen the overall air duct, and the motor exhaust channel c202 can form a new turning angle with the motor exhaust channel c202, so that the flow path of the airflow is further turned, thereby further dissipating noise energy.

[0230] In this embodiment, the motor exhaust channel is horizontally arranged and intersects with the inclined motor air outlet channel c204. The airflow is turned when passing through the connection part between the motor exhaust channel and the motor air outlet channel c204.

[0231] On the basis of the above-mentioned embodiments, as a further defined embodiment, as shown in Figure 3 、 Figure 6 The motor exhaust channel c202 is provided with an exhaust sponge c2021 upstream of the motor exhaust port c2022. The exhaust sponge c2021 can further filter the air before the airflow flows out of the motor exhaust port c2022.

[0232] Specifically, as shown in Figure 4 The motor exhaust channel c202 is a cylindrical shape with a circular cross-section. The motor exhaust port c2022 is uniformly distributed on the motor exhaust channel c202. As shown in Figure 5 、 Figure 7 、 Figure 8As shown in FIG. 2, the motor exhaust passage c202 is provided with a cylindrical exhaust sponge c2021, and the exhaust sponge c2021 is provided with filtering holes. As an alternative embodiment, the cross section of the motor exhaust passage is triangular, rectangular, pentagonal, hexagonal or other polygonal shape. As another alternative embodiment, the cross section of the motor exhaust passage is elliptical. As shown in FIG. 2, Figure 7 、 Figure 8 As shown in FIG. 2, the motor exhaust passage c202 is composed of two detachable parts. One part is a motor exhaust passage c204 integrally formed on the motor housing, which forms a right lateral exhaust. The top of the motor exhaust passage c204 is open, and the exhaust passage cover c206 is buckled to close the opening and form the motor exhaust passage c202 on the right side of the motor exhaust passage c204. The exhaust sponge c2021 can be cleaned or replaced by opening the exhaust passage cover c206. In this embodiment, the passage structure forming the motor exhaust passage c204 is welded on the right opening of the motor housing c2, which is the motor exhaust outlet c205.

[0233] Based on the above embodiment, as a further defined embodiment, as shown in FIG. 2, Figure 2 、 Figure 3 The second filter a103 is arranged between the motor exhaust outlet c2022 of the motor housing c2 or downstream of the motor exhaust outlet c2022. The airflow flows out of the motor exhaust outlet c2022 and enters the machine housing and the motor exhaust passage c202. The second filter a103 is arranged between the machine housing and the motor exhaust passage, so that the airflow is further purified before being discharged from the dust collector.

[0234] Based on the above embodiment, as a further defined embodiment, as shown in FIG. 2, Figure 1 Figure 3 The handheld dust collector further comprises a dust cup assembly d, which comprises a dust cup body d1 arranged upstream of the dust and dirt separator, and a dust cup filter screen d2 arranged in the dust cup assembly d. The airflow sucked into the dust collector from the outside first passes through the dust and dirt separation of the dust cup filter screen d2 in the dust cup assembly d, and then enters the dust and dirt separator for further purification.

[0235] Specifically, as shown in FIG. 2, Figure 1 Figure 3 The dust cup body d1 is a cylindrical shape with an open top, and has a dust collecting cavity d4 inside. The dust and dirt separator is installed on the opening at the top of the dust cup body d1. The sidewall of the dust cup body d1 has an air inlet assembly d3. The airflow is sucked into the dust collecting cavity d4 from the air inlet assembly d3, and after dust and dirt separation in the dust collecting cavity d4, the airflow rises into the dust and dirt separator under the drive of the airflow generator.

[0236] The dust removal structure of the dust cup assembly d is as follows:​​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.

[0237] 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.

[0238] like Figure 3 As 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.

[0239] 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.

[0240] 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.

[0241] Specifically, such as Figure 2 , Figure 3 , Figure 13As shown in the figure, the bottom opening of the dust separator is assembled on the opening at the top of the dust cup body d1, and the motor base c3 in the dust separator has a circular arc surface protruding outward, so that when the dust separator is assembled on the dust cup body d1, the motor base c3 extends into the dust cup body d1. Further, the dust cup body d1 has a dust cup inner cylinder d10, the motor base c3 is embedded in the top opening of the dust cup inner cylinder d10 and closes the top of the dust cup inner cylinder d10, and the dust cup inner cylinder d10 forms a channel for the airflow to rise with the dust cup filter screen d2 and the annular flange on which the filter screen is installed. The airflow mixed with dust and dirt separates in the dust collection cavity d4, so that most of the dust and dirt accumulates in the dust collection cavity d4.

[0242] On the basis of the above-mentioned embodiments, as further defined embodiments, as shown in Figure 12 - Figure 16 As shown in the figure, the bottom of the dust cup body d1 is provided with a cleaning opening, and the dust cup end cover d8 is movably connected to the cleaning opening. The bottom of the dust cup body d1 is provided with a cleaning opening, so that when the dust cup end cover d8 is opened, the dust and dirt remaining in the dust collection cavity d4 can be automatically removed.

[0243] Specifically, as shown in Figure 13 , Figure 16 As shown in the figure, the dust cup end cover d8 is rotatably connected to the dust cup body d1. As an alternative embodiment, the dust cup end cover d8 is slidably connected to the dust cup body d1. As another alternative embodiment, the dust cup end cover d8 is buckled to the opening at the bottom of the dust cup body d1 through a buckle structure.

[0244] On the basis of the above-mentioned embodiments, as further defined embodiments, as shown in Figure 12 , Figure 15 , Figure 18 As shown in the figure, the handheld dust collector further comprises a slide buckle assembly d9, which comprises a slide buckle d901 movably connected to the handheld dust collector; the dust cup end cover d8 comprises an end cover buckling part d802 located on the movement path of the slide buckle d901, and the end cover buckling part d802 is separated from the dust cup body d1 when the end cover buckling part d802 moves in the movement direction of the slide buckle d901. When the end cover buckling part d802 is buckled to the opening at the bottom of the dust cup body d1, the end cover buckling part d802 is located on the movement path of the slide buckle d901, and when the slide buckle d901 slides through the end cover buckling part d802, the end cover buckling part d802 is pushed to deform or displace, so that the end cover buckling part d802 is separated from the dust cup body d1. Under the action of gravity, the dust cup end cover d8 is rotated downward to open, so that the dust and dirt is automatically removed, realizing one-key control to open the dust cup and automatically dump the dust and dirt.

[0245] Specifically, as shown in Figure 13 ,Figure 15 The left side of the end cover fastening part d802 is rotationally connected to the left side of the opening in the bottom of the dust cup body d1, the right side of the end cover fastening part d802 is fastened to the outer wall on the right side of the opening in the bottom of the dust cup body d1, and part of the slide fastening part d901 is located between the end cover fastening part d802 and the side wall of the dust cup body d1. At this time, when the slide fastening part d901 slides to the right, the end cover fastening part d802 is pushed to the right, so as to be separated from the outer wall of the dust cup body d1. As shown in Figure 15 , the slide fastening part d901 is slidingly connected to the power supply shell f101. In Figure 13 the perspective view, the bottom surface of the power supply shell f101 is provided with a slide fastening sliding groove f1011, and the slide fastening part d901 is slidingly connected in the slide fastening sliding groove f1011.

[0246] As shown in Figure 13 , Figure 16 , the side of the dust cup end cover d8 facing into the dust collecting cavity d4 is provided with an end cover sealing protrusion d805, the end cover sealing protrusion d805 is embedded in the bottom opening of the dust cup inner cylinder d10, and when the dust cup end cover d8 is fastened and closed, the end cover sealing protrusion d805 exactly seals the bottom opening of the dust cup inner cylinder d10, so as to form an annular cyclone separation space between the dust cup inner cylinder d10 and the inner wall of the dust cup.

[0247] On the basis of the above-mentioned embodiments, as a further defined embodiment, as shown in Figure 15 , Figure 16 , the slide fastening part d901 is slidingly connected to the handheld dust collector, and the slide fastening part d901 has a locking position close to the dust cup body d1 and an unlocking position away from the dust cup body d1.

[0248] As shown in Figure 15 , the locking position of the slide fastening part d901 is the position where the slide fastening part d901 is located between the end cover fastening part d802 and the outer wall of the dust cup body d1, and the unlocking position of the slide fastening part d901 is the position where the slide fastening part d901 slides to the right and pushes away the end cover fastening part d802.

[0249] The structure of the dust cup inner cylinder d10 is not specifically limited, and in this embodiment, in combination with Figure 2 , Figure 13 , Figure 15As shown, the dust cup inner cylinder d10 includes an inner cylinder air guide section d1001 and an inner cylinder extension section d1002, wherein the inner cylinder air guide section d1001 is located within the surrounding range of the dust cup filter screen d2, and after the airflow is purified and separated between the inner wall of the dust collecting cavity d4 and the dust cup filter screen d2, the airflow enters the space between the dust cup filter screen d2 and the dust cup inner cylinder d10. Due to the negative pressure formed by the vacuum motor c1 above the dust collecting cavity d4, after the airflow passes through the dust cup filter screen d2, it rises along the inclined inner cylinder air guide section d1001 and then enters the air guide conical section c203. The side of the inner cylinder air guide section d1001 facing the motor base d3 is sealed, and the inner cylinder extension section d1002 further extends towards the dust cup end cover d8 at the bottom of the dust cup and is sealed by the end cover sealing protrusion d805 on the dust cup end cover d8.

[0250] On the basis of the above-mentioned embodiments, as a further limited embodiment, as shown in Figure 15 As shown, the end cover fastening part d802 is provided with a transmission protrusion d8022 protruding onto the sliding path of the slide fastening part d901. The slide fastening part d901 includes a slide fastening limiting end d903 provided upstream of the transmission protrusion d8022. The transmission protrusion d8022 and the outer wall of the dust cup body d1 form a gap accommodating the slide fastening limiting end d903. During the movement of the slide fastening limiting end d903 to the unlocking position, the slide fastening limiting end d903 comes into contact with the transmission protrusion d8022 and further pushes the transmission protrusion d8022 to drive the end cover fastening part d802 to unlock.

[0251] On the basis of the above-mentioned embodiments, as a further limited embodiment, as shown in Figure 15 As shown, the face of the transmission protrusion d8022 facing the slide fastening limiting end d903 is an inclined transmission guide face d8023.

[0252] Specifically, as shown in Figure 15 The transmission guide face d8023 can guide the slide fastening part d901 to slide to the right. In this embodiment, the end cover fastening part d802 is made of metal or plastic or other materials with certain elastic deformation ability. When the end cover fastening part d802 is pushed to the right by the slide fastening part d901, it can also be deformed to the right as a whole under the guidance of the inclined face, so that the end cover fastening part d802 is more easily and smoothly unlocked.

[0253] On the basis of the above-mentioned embodiments, as a further limited embodiment, as shown in Figure 15 , Figure 18 As shown, the slide fastening part d901 is provided with a slide fastening limiting groove, and the transmission protrusion d8022 is embedded in the slide fastening limiting groove. The groove wall of the slide fastening limiting groove can limit the upstream and downstream of the transmission protrusion d8022, respectively. Specifically, as shown in Figure 15As shown, the sliding buckle limiting groove is formed on the left and right sides of the transmission protrusion d8022.

[0254] Further, the sliding buckle d901 is provided with a sliding buckle limiting groove d906, and the transmission protrusion d8022 is embedded in the sliding buckle limiting groove d906.

[0255] On the basis of the above-mentioned embodiments, as a further defined embodiment, as shown in Figure 14 As shown, the dust cup end cover d8 comprises an end cover rotating part d801 rotatably connected to the dust cup body d1, and an end cover torsional spring d8011 arranged on the end cover rotating part d801. When the dust cup end cover d8 is in a closed state, the end cover torsional spring d8011 is in an elastic deformation state. After the user controls the sliding of the sliding buckle d901 to be unlocked, the dust cup end cover d8 is automatically opened under the driving of the elasticity of the end cover torsional spring d8011, further improving the convenience of one-key control of the user.

[0256] On the basis of the above-mentioned embodiments, as a further defined embodiment, as shown in Figure 15 、 Figure 17 As shown, the dust cup end cover d8 further comprises an end cover buckling part d802, wherein a dust cup locking protrusion d803 protrudes from the outer wall of the dust cup body d1 towards the end cover buckling part d802, and the outer wall of the dust cup body d1 is provided with an end cover buckle d8021.

[0257] On the basis of the above-mentioned embodiments, as a further defined embodiment, as shown in Figure 14 、 Figure 15 As shown, the dust cup body d1 is provided with a dust cup guide wall d804 arranged at the opening end of the dust cup body d1 towards the dust cup end cover d8, wherein the dust cup guide wall d804 is curved towards the inside of the dust cup body d1, so that the cross-sectional area of the dust cup opening gradually decreases in the direction close to the dust cup end cover d8. The guide wall is formed in a circular arc shape on the side towards the dust collection cavity d4. After the dust cup end cover d8 is opened, the dust inside the dust collection cavity d4 slides along the guide wall, and the cross-sectional area of the guide wall gradually decreases in the direction close to the bottom opening of the dust cup body d1, so that the dust has a movement trend of gathering to the center of the dust cup opening during the falling process, preventing the dust from spreading during the falling process.

[0258] On the basis of the above-mentioned embodiments, as a further defined embodiment, as shown in Figure 14 、 Figure 15 As shown, the dust cup guide wall d804 forms a space for giving way on the side away from the inside of the dust cup body d1.

[0259] Specifically, as shown in Figure 14As shown, the part of the guide wall towards the left side forms a space for accommodating the rotating part d801 of the end cover, in combination with Figure 17 the rotating part of the end cover and the end cover torsion spring d8011 arranged on the rotating part d801 of the end cover, both of which are installed in the space formed by the guide wall, so that the overall appearance of the device is more regular. Further, as shown, Figure 15 the part of the guide wall towards the right side forms a space for accommodating the clamping part d802 of the end cover, so that the overall appearance of the device is more regular.

[0260] Based on the above embodiment, as a further defined embodiment, as shown, Figure 13 , Figure 16 the slide clamping assembly d9 further comprises a slide clamping spring d902 arranged on the moving path of the slide clamping member d901. The slide clamping spring d902 can improve the feedback when the user operates, and can also automatically reset after the user operates. After the slide clamping member d901 is reset, the slide clamping limiting end d903 of the slide clamping member d901 returns to the locking position, and the end cover clamping part d802 returns to the downstream position of the slide clamping member d901 when the dust cup end cover d8 is clamped on the opening at the bottom of the dust cup body d1. The downstream of the slide clamping member d901 is based on the movement direction of the slide clamping member d901 from the locking position to the unlocking position.

[0261] Based on the above embodiment, as a further defined embodiment, as shown, Figure 18 the slide clamping member d901 is provided with a slide clamping touch groove d904. The slide clamping touch groove d904 facilitates the user to operate the slide clamping member d901.

[0262] Based on the above embodiment, as a further defined embodiment, as shown, Figure 18 the slide clamping touch groove d904 is provided with a flange pad d905. The flange pad d905 can increase the contact area between the user and the slide clamping member d901, and can also increase the force area during the user controlling the slide clamping member d901, thereby improving the user experience.

[0263] Based on the above embodiment, as a further defined embodiment, as shown, Figure 1 the handheld dust collector further comprises a handle assembly b arranged on the main machine shell a; and the main machine shell a comprises a whole machine air outlet a102 arranged towards either side of the handle assembly b.

[0264] Specifically, as shown, Figure 1 the main body of the handheld dust collector is composed of a dust cup assembly d at the bottom, a suction assembly c arranged on the dust cup assembly d, and a vacuum motor c1 in the suction assembly c providing power for the suction function of the whole machine. Further, in combination withFigure 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.

[0265] 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.

[0266] 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.

[0267] 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.

[0268] 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.

[0269] 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.

[0270] 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 1The top of the handle assembly b is connected to one end of the lateral protrusion a104 as the first end b101 of the handle, and the bottom of the handle assembly b is connected to one end of the power supply assembly f as the second end b102 of the handle, wherein the first end b101 of the handle is located on the left side of the second end b102 of the handle.

[0271] Further, the power supply assembly f is parallel to the lateral protrusion a104, and the power supply assembly f is provided with an indicator lamp f102 on one side facing the lateral protrusion a104.

[0272] On the basis of the above-mentioned embodiments, as further defined embodiments, as shown in Figure 6 The air flow generator comprises a vacuum motor c1, and the handheld vacuum cleaner further comprises a motor base c3 assembled on the motor housing c2, and an assembly space for mounting the vacuum motor c1 is formed between the motor base c3 and the motor housing c2.

[0273] On the basis of the above-mentioned embodiments, as further defined embodiments, as shown in Figure 7 、 Figure 8 The handheld vacuum cleaner further comprises a motor seal c4 arranged in the motor housing c2, and the motor seal c4 is clamped between the motor housing c2 and the vacuum motor c1. The vacuum motor c1 is fixed by the motor housing c2 and the motor base c3 from the upper and lower sides of the vacuum motor c1 respectively, and the motor seal c4 is clamped between the vacuum motor c1 and the motor housing c2. On the one hand, the motor seal c4 can compensate for the gap between the vacuum motor c1 and the motor housing c2, reduce the structural gap between the motor cover and the vacuum motor c1, and combine the motor cover and the vacuum motor c1 as a whole when the vacuum motor c1 is working. On the other hand, when the vacuum motor c1 vibrates, the motor seal c4 close to the vacuum motor c1 is extruded and deformed, which can reduce the vibration propagation to the motor housing c2, thereby further reducing the noise generated by the vacuum motor c1 when working. In the prior art, the main reasons for the noise generated by the vacuum motor c1 are two aspects. One is that the vacuum motor c1 vibrates and generates noise when working, and the other is that the vibration of the vacuum motor c1 causes vibration between other components connected to the vacuum motor c1, resulting in further noise. The present scheme prevents the vacuum motor c1 from directly contacting the motor housing c2 by the motor seal c4, eliminates the vibration generated by the vacuum motor c1 when working in the motor housing c2, and reduces the vibration range of the vacuum motor c1 when working to the assembly space, thereby greatly reducing the noise generated by the vacuum motor c1 during working, and solving the problem of noise generated by the vibration of the vacuum motor c1 when the existing vacuum cleaner works.

[0274] 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.

[0275] Based on the above embodiments, as a further limiting embodiment, such as... Figure 8 As 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.

[0276] 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.

[0277] 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.

[0278] On the basis of the above-mentioned embodiments, as further defined embodiments, as shown in Figure 8 Figure 11 The base damping member 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 conical part c203 by deforming itself, and reduce the transmission of the vibration of the air guide conical part c203 to the base.

[0279] On the basis of the above-mentioned embodiments, as further defined embodiments, as shown in Figure 8 Figure 11 The foot damping part c503 includes at least two unit damping pads c5031, which are stacked and clamped between the conical foot c2033 and the foot support part c302. The plurality of unit damping pads c5031 can further improve the damping performance of the foot damping part c503.

[0280] On the basis of the above-mentioned embodiments, as further defined embodiments, as shown in Figure 8 Figure 11 The foot damping part c503 further includes a buffer pad layer c5032 supported between adjacent unit damping pads c5031. On the one hand, the buffer pad layer c5032 can further improve the damping performance of the foot damping part c503. On the other hand, under the same stress condition, the elastic deformation degree of the buffer pad layer c5032 is larger than that of the foot damping part c503. Therefore, when the buffer pad layer c5032 is subjected to a vibration impact, the buffer pad layer c5032 relies on its own deformation to slow down the deformation of the unit damping pad c5031, thereby improving the damping performance of the foot damping part c503.

[0281] On the basis of the above-mentioned embodiments, as further defined embodiments, as shown in Figure 8 Figure 11 The vacuum motor c1 is provided with a motor foot base c101 on the side facing the motor base c3, and the motor base c3 is provided with a foot base matching part c301 adapted to support the motor foot base c101.

[0282] On the basis of the above-mentioned embodiments, as further defined embodiments, as shown in Figure 8 Figure 11 Figure 8 Figure 11 ​​​​​As shown, the base damping member c5 includes a foot base damping part c502, one end of which is fitted on the foot base fitting part c301, and the other end of which has a slot suitable for being inserted into the slot of the motor foot base c101. The foot base fitting part c301 in the motor base c3 is used to support and fix the vacuum motor c1. When the vacuum motor c1 works, vibration occurs and is transmitted to the foot base damping part c502, which is reduced, so that most of the vibration of the vacuum motor c1 is eliminated, the influence of the vibration of the vacuum motor c1 on the motor base c3 is greatly reduced, and the influence of the vibration of the vacuum motor c1 is limited in the motor cover, so that the noise is reduced to the outside.

[0283] Obviously, the above-mentioned embodiments are only examples for clearly illustrating the present application, and are not intended to limit the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments are not required to be exhausted, and the obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A handheld vacuum cleaner, characterized in that, include: Main unit casing (a); An airflow generator is disposed inside the main unit housing (a). The airflow generator is used to create a negative pressure inside the main unit housing (a). A spatial gap is formed between the airflow generator and the main unit housing (a). A dust and dirt separator is disposed within the space gap, and the dust and dirt separator surrounds the airflow generator and forms a mounting cavity suitable for assembling the airflow generator; The handheld vacuum cleaner includes: The motor housing (c2) is located inside the main unit housing (a), and the airflow generator is located inside the motor housing (c2); The motor housing (c2) includes: The motor air comb (c201) is located on the top of the motor housing (c2); The motor air outlet (c205) is located in the lower half of the motor housing (c2), so that the airflow forms a zigzag path that travels back and forth in the height direction within the main housing (a); The handheld vacuum cleaner includes: 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 adheres to the surface of the motor housing (c2) facing the motor base (c3); and a wrapping wall (c402) disposed on the base pad (c401), the wrapping wall (c402) extending toward the motor base (c3), and the wrapping wall (c402) sandwiched between the airflow generator and the inner wall of the motor housing (c2).

2. The handheld vacuum cleaner according to claim 1, characterized in that, The airflow generator is located downstream of the dust and dirt separator.

3. The handheld vacuum cleaner according to claim 1 or 2, characterized in that, The airflow generator is collinear with the central axis of the dust separator.

4. The handheld vacuum cleaner according to claim 2, characterized in that, The dust and dirt separator includes: A guide cone (c203) is disposed between the motor housing (c2) and the main unit housing (a).

5. The handheld vacuum cleaner according to claim 4, characterized in that, The cross-sectional area of ​​the air guide cone (c203) gradually increases along the airflow direction, and the air guide cone (c203) comprises: A side air outlet (c2031) is located on the side wall of the air guide cone (c203) near the top of the air guide cone (c203).

6. The handheld vacuum cleaner according to claim 5, characterized in that, The height of the motor comb nozzle (c201) shall not exceed the height of the side air outlet (c2031).

7. The handheld vacuum cleaner according to claim 5, characterized in that, The air guide cone (c203) also includes: A side air guide vane (c2032) is disposed at the opening edge of the side air outlet (c2031), and the side air guide vane (c2032) is tangent to the inner wall of the air guide cone (c203).

8. The handheld vacuum cleaner according to claim 7, characterized in that, The adjacent side guide vanes (c2032) have different tilt directions.

9. The handheld vacuum cleaner according to any one of claims 6 and 8, characterized in that, The motor air outlet (c205) is located on the side of the airflow generator, and the motor housing (c2) is provided with a motor air outlet channel (c204) extending from the motor air outlet (c205) away from the motor air outlet (c205).

10. The handheld vacuum cleaner according to claim 9, characterized in that, The motor air outlet channel (c204) is set at an angle.

11. The handheld vacuum cleaner according to claim 10, characterized in that, The airflow gradually increases in height within the motor outlet channel (c204).

12. The handheld vacuum cleaner according to claim 10 or 11, characterized in that, The motor housing (c2) is provided with a motor exhaust port (c2022), which is connected to the motor air outlet channel (c204), and the height of the motor exhaust port (c2022) is not lower than the height of the motor air comb (c201).

13. The handheld vacuum cleaner according to claim 12, characterized in that, The motor housing (c2) 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).

14. The handheld vacuum cleaner according to claim 13, characterized in that, The motor exhaust duct (c202) is equipped with: The exhaust sponge (c2021) is located upstream of the motor exhaust port (c2022).

15. The handheld vacuum cleaner according to claim 13 or 14, characterized in that, The motor exhaust duct (c202) is set in a horizontal direction.

16. The handheld vacuum cleaner according to any one of claims 6, 8, 10, 11, 13, 14, characterized in that, A first filter (c7) is provided between the side air outlet (c2031) and the motor air comb (c201).

17. The handheld vacuum cleaner according to claim 16, characterized in that, A second filter (a103) is provided between the motor air outlet (c205) and the motor exhaust port (c2022) of the motor housing (c2), or downstream of the motor exhaust port (c2022).

18. The handheld vacuum cleaner according to any one of claims 1-2, 4-8, 10-11, 13-14, 17, characterized in that, The handheld vacuum cleaner also includes: The dust cup assembly (d) includes a dust cup body (d1) and is located upstream of the dust separator; The dust cup filter (d2) is disposed within the dust cup assembly (d).

19. The handheld vacuum cleaner according to claim 18, characterized in that, The dust cup assembly (d) also includes: An air inlet assembly (d3) is disposed on the side wall of the dust cup body (d1), and a cyclone separation space is formed between the dust cup filter (d2) and the inner wall of the dust cup body (d1).

20. The handheld vacuum cleaner according to claim 19, characterized in that, The dust cup assembly (d) also includes: The dust cup inner cylinder (d10) and the dust cup filter (d2) form a dust cup clean air duct, and the outlet of the dust cup clean air duct is connected to the dust and dirt separator.

21. The handheld vacuum cleaner according to claim 19, characterized in that, The dust separator is located at the top of the dust cup body (d1) and closes the top opening of the dust cup body (d1).

22. The handheld vacuum cleaner according to claim 21, characterized in that, 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.

23. The handheld vacuum cleaner according to claim 22, characterized in that, The dust cup end cap (d8) is rotatably connected to the dust cup body (d1).

24. The handheld vacuum cleaner according to claim 23, characterized in that, The handheld vacuum cleaner also includes: The sliding fastener assembly (d9) includes a sliding fastener (d901) which is movably connected to the handheld vacuum cleaner; The dust cup end cap (d8) includes: The end cap fastening part (d802) is located on the movement path of the sliding fastener (d901). When the end cap fastening part (d802) moves in the movement direction of the sliding fastener (d901), it disengages from the dust cup body (d1).

25. The handheld vacuum cleaner according to claim 24, characterized in that, 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).

26. The handheld vacuum cleaner according to claim 25, characterized in that, The end cap fastening part (d802) is provided with: A transmission protrusion (d8022) protrudes along the sliding path of the sliding fastener (d901); The sliding fastener (d901) includes: The sliding stop end (d903) is located upstream of the transmission protrusion (d8022).

27. The handheld vacuum cleaner according to claim 26, characterized in that, The surface of the transmission protrusion (d8022) facing the sliding buckle limiting end (d903) is an inclined transmission guide surface (d8023).

28. The handheld vacuum cleaner according to claim 26, characterized in that, The sliding fastener (d901) is provided with: The sliding buckle limiting groove (d906) is provided, and the transmission protrusion (d8022) is embedded in the sliding buckle limiting groove (d906).

29. The handheld vacuum cleaner according to any one of claims 24-27, characterized in that, The dust cup end cap (d8) includes: The end cap rotating part (d801) is rotatably connected to the dust cup body (d1); An end cap torsion spring (d8011) is provided on the end cap rotating part (d801).

30. The handheld vacuum cleaner according to claim 29, characterized in that, The dust cup end cap (d8) also includes: End cap fastening part (d802), the end cap fastening part (d802) protrudes towards the outer wall of the dust cup body (d1) and has a dust cup locking protrusion (d803). The outer wall of the dust cup body (d1) is provided with an end cap buckle (d8021).

31. The handheld vacuum cleaner according to any one of claims 24-27, characterized in that, The dust cup body (d1) is provided with: A dust cup guide wall (d804) is provided at the opening end of the dust cup body (d1) facing the dust cup end cap (d8). The dust cup guide wall (d804) bends inward toward the dust cup body (d1) so that the cross-sectional area at the opening of the dust cup gradually decreases along the direction close to the dust cup end cap (d8).

32. The handheld vacuum cleaner according to claim 31, characterized in that, 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).

33. The handheld vacuum cleaner according to any one of claims 24-27, 30, 32, characterized in that, The sliding fastener assembly (d9) also includes: A sliding spring (d902) is provided on the moving path of the sliding fastener (d901).

34. The handheld vacuum cleaner according to any one of claims 24-27, 30, 32, characterized in that, The sliding fastener (d901) is provided with a sliding fastener touch groove (d904).

35. The handheld vacuum cleaner according to claim 34, characterized in that, The sliding touch groove (d904) is provided with a flange pad (d905).

36. The handheld vacuum cleaner according to any one of claims 1-2, 4-8, 10-11, 13-14, 17, 19-27, 30, 32, 35, characterized in that, The handheld vacuum cleaner also includes: A handle assembly (b) is disposed on the main body housing (a); The main unit housing (a) includes: The exhaust vent (a102) is positioned facing either side of the handle assembly (b).

37. The handheld vacuum cleaner according to claim 36, characterized in that, The main unit housing (a) includes: A lateral protrusion (a104) protrudes toward the handle assembly (b), and the exhaust vent (a102) of the whole machine is provided on the lateral protrusion (a104).

38. The handheld vacuum cleaner according to claim 37, characterized in that, A second filter (a103) is provided upstream of the exhaust port (a102) of the unit.

39. The handheld vacuum cleaner according to claim 37, characterized in that, The handheld vacuum cleaner also includes: The power supply assembly (f) includes a power supply housing (f101), one end of which is connected to the main unit housing (a), and the other end extends parallel to the lateral protrusion (a104).

40. The handheld vacuum cleaner according to claim 39, characterized in that, The handle assembly (b) connects the lateral protrusion (a104) to the power assembly (f).

41. The handheld vacuum cleaner according to claim 40, characterized in that, The handle assembly (b) is tilted.

42. The handheld vacuum cleaner according to any one of claims 37-41, characterized in that, The handle assembly (b) has a switch button (a101) on the side facing the main housing (a).

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