CN106618375B

CN106618375B - Hand-held vacuum cleaner

Info

Publication number: CN106618375B
Application number: CN201710104474.4A
Authority: CN
Inventors: 陆栋良; 李冠华
Original assignee: Jiangsu Midea Cleaning Appliances Co Ltd
Current assignee: Guangdong Midea Kitchen Appliances Manufacturing Co Ltd; Jiangsu Midea Cleaning Appliances Co Ltd
Priority date: 2017-02-24
Filing date: 2017-02-24
Publication date: 2020-12-04
Anticipated expiration: 2037-02-24
Also published as: CN106618375A

Abstract

The invention discloses a handheld dust collector, which comprises: the dust cup assembly comprises a cup shell, and an airflow generating device and a cyclone separating device which are arranged in the cup shell, wherein the airflow generating device is arranged above the cyclone separating device and positioned at the downstream side of the cyclone separating device, and an air outlet is formed at the top of the cup shell; the suction nozzle assembly is transversely arranged on the cup shell and defines a suction channel; the handle assembly is mounted on the cup shell and is used for holding. According to the handheld dust collector, the air flow channel in the cup shell is effectively shortened, the flowing direction of the air flow in the cup shell is basically not changed, the vacuum degree loss is reduced, the energy consumption is reduced, the structure of the dust cup assembly is more compact, smaller and regular, the handheld dust collector is suitable for the miniaturization development requirement of the handheld dust collector, and the handheld dust collector is convenient for a user to carry.

Description

Hand-held vacuum cleaner

Technical Field

The invention relates to the field of household appliances, in particular to a handheld dust collector.

Background

In the related art, the handheld dust collector has the disadvantages of long airflow channel, large energy consumption, large overall size, large weight and inconvenient use.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a handheld vacuum cleaner, which has a small airflow channel, low power consumption, small volume and convenient use.

The handheld vacuum cleaner according to the present invention comprises: the dust cup assembly comprises a cup shell, and an airflow generating device and a cyclone separating device which are arranged in the cup shell, wherein the airflow generating device is arranged above the cyclone separating device and positioned at the downstream side of the cyclone separating device, and an air outlet is formed at the top of the cup shell; a suction nozzle assembly mounted transversely on the cup housing and defining a suction passage; a handle assembly mounted on the cup shell and for gripping.

According to the handheld dust collector, the airflow generating device is arranged above the cyclone separation device and on the downstream side of the cyclone separation device, and the air outlet is arranged at the top of the cup shell, so that an airflow channel in the cup shell is effectively shortened, and the flowing direction of airflow in the cup shell is basically not changed, therefore, the vacuum degree loss is effectively reduced, the energy consumption is reduced, the structure of the dust cup component is more compact, small and regular, the handheld dust collector is suitable for the miniaturization development requirement of the handheld dust collector, and the handheld dust collector is convenient for a user to carry. Meanwhile, the gravity center of the handheld dust collector can be moved forwards, the weight of the handle assembly is reduced, the force required by a user for holding the handheld dust collector is reduced, and the handheld dust collector is convenient for the user to use. In addition, the air flow generating device can be effectively protected, and dust in the air flow can be prevented from entering the air flow emitting device to damage the air flow device.

In addition, the hand-held cleaner according to the invention may also have the following additional technical features:

according to some embodiments of the invention, upstream filtering means is provided between the airflow generating means and the cyclonic separating apparatus.

Further, a downstream filtering device is arranged at the downstream side of the airflow generating device.

Specifically, the airflow generation device includes: the negative pressure unit and the hood covering the outside of the negative pressure unit are provided with a plurality of exhaust holes, and the downstream filtering device is annular and sleeved on the hood to surround the exhaust holes.

Optionally, the exhaust vent is arranged around the downstream filtering device.

According to some embodiments of the invention, the air outlet direction of the air outlet is inclined upwards relative to the axial direction of the air suction channel.

Specifically, the cyclone separating apparatus includes: the cyclone separator comprises a first-stage cyclone separator, a second-stage cyclone separator and a filter element, wherein the second-stage cyclone separator is arranged in the first-stage cyclone separator, the filter element is arranged in the second-stage cyclone separator, airflow enters the space between the cup shell and the first-stage cyclone separator through the suction channel in a tangential direction to perform primary cyclone separation, then enters the space between the second-stage cyclone separator and the filter element through the first-stage cyclone separator and the second-stage cyclone separator to perform secondary cyclone separation, and then flows to the airflow generating device through the filter element.

Optionally, an inner wall surface of the cup shell is provided with a dust blocking rib.

According to some embodiments of the invention, the handle assembly comprises a handle for mounting with the cup housing and a power supply connected to the handle for supplying power to the airflow generating device, wherein the handheld vacuum cleaner has a heat dissipating air duct therein for directing airflow within the cup housing to the power supply.

Specifically, an inlet of the heat dissipation air duct is communicated to the airflow generation device, and an outlet of the heat dissipation air duct is communicated to the power supply.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a front view of a hand-held cleaner according to one embodiment of the present invention;

FIG. 2 is an exploded view of a portion of the hand-held cleaner shown in FIG. 1;

FIG. 3 is a top plan view of the hand-held cleaner shown in FIG. 1;

FIG. 4 is a cross-sectional view of the hand-held cleaner shown in FIG. 1;

FIG. 5 is a schematic view of the upper half of the hand-held cleaner shown in FIG. 4;

FIG. 6 is a partial schematic view of the upper housing shown in FIG. 4;

FIG. 7 is a schematic view of the lower housing shown in FIG. 4;

FIG. 8 is a schematic view of the hand-held cleaner shown in FIG. 4 with the lid open and the cyclonic separating apparatus removed;

FIG. 9 is a perspective view of the primary cyclone separator and filter cartridge shown in FIG. 4;

FIG. 10 is a cross-sectional view of the primary cyclone separator and filter cartridge shown in FIG. 9;

FIG. 11 is a partial front view of a hand-held cleaner according to one embodiment of the present invention;

FIG. 12 is a top plan view of the hand-held cleaner shown in FIG. 11;

FIG. 13 is a side elevational view of the hand-held cleaner illustrated in FIG. 11;

FIG. 14 is a top cross-sectional view of a hand-held cleaner according to one embodiment of the present invention;

FIG. 15 is an enlarged view of portion A of FIG. 14;

FIG. 16 is a front cross-sectional view of a hand-held cleaner according to one embodiment of the present invention;

FIG. 17 is a top cross-sectional view of the hand-held cleaner illustrated in FIG. 16;

FIG. 18 is a front cross-sectional view of a hand-held cleaner according to one embodiment of the present invention;

FIG. 19 is a front cross-sectional view of a hand-held cleaner according to one embodiment of the present invention;

FIG. 20 is a schematic view of a hand-held cleaner according to some embodiments of the invention;

FIG. 21 is a schematic view of a hand-held cleaner according to some embodiments of the invention;

FIG. 22 is a front cross-sectional view of a hand-held cleaner according to one embodiment of the present invention;

FIG. 23 is a partial cross-sectional view of a hand-held cleaner according to one embodiment of the invention;

FIG. 24 is a partial schematic view of a hand-held cleaner according to some embodiments of the invention;

FIG. 25 is a rear elevational view of the hand-held cleaner according to the embodiment of the present invention, with the power source not shown;

FIG. 26 is a perspective view of a power supply according to an embodiment of the invention;

FIG. 27 is a schematic view of a guide rail channel of a guide assembly according to an embodiment of the invention;

FIG. 28 is a top view of a power supply according to an embodiment of the invention;

FIG. 29 is a sectional view taken along line B-B of FIG. 28;

figure 30 is a cross-sectional view of a hand-held cleaner according to one embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

A hand-held cleaner T according to an embodiment of the invention will be described with reference to fig. 1-30.

As shown in fig. 1 and 22, a hand-held cleaner T according to an embodiment of the present invention includes: a dirt cup assembly T1, a suction nozzle assembly T2, and a handle assembly T3. A handle assembly T3 is mounted on the cup housing 1 and is for gripping.

Specifically, the dirt cup assembly T1 includes a cup housing 1 and an airflow generating device 2 and a cyclonic separating apparatus 3 provided within the cup housing 1. Here, it should be noted that the airflow generation device 2 refers to an assembly including a driving part (e.g., a motor 211 described below) and a power part (e.g., a wind turbine 212 described below) to be capable of generating negative pressure. In addition, the cyclone separation principle of the cyclone 3 is known to the person skilled in the art and will not be described in detail here. Wherein, the cyclone separation device 3 can be in a single cone structure or a multi-cone structure. In addition, the dirt cup assembly T1 according to the present invention can also be used on other types of vacuum cleaners than hand vacuum cleaners T, such as push type vacuum cleaners, as the case may be.

The suction nozzle assembly T2 is transversely mounted to the cup housing 1 and defines a suction passage S1. For example, referring to FIG. 22, the suction nozzle assembly T2 may be mounted on the front of the cup housing 1 and extend in a generally horizontal direction. The suction nozzle assembly T2 defines a suction passage S1 therein, and specifically, one end (e.g., the rear end in fig. 22) of the suction passage S1 communicates with the cup housing 1, and the other end (e.g., the front end in fig. 22) of the suction passage S1 has a suction port through which dust and other debris can enter the cup housing 1 from the suction port of the suction passage S1.

The handle assembly T3 and the nozzle assembly T2 are located at both sides of the dirt cup assembly T1, respectively, in the axial direction of the suction passage S1. For example, referring to fig. 1 to 3, the cup housing 1 may be formed in a cylindrical shape (the "cylindrical shape" is to be understood in a broad sense, i.e., the cylindrical shape is not necessarily required in a strict sense, and for example, the shape of the cup housing 1 shown in the drawings may also be understood as a cylindrical shape). The suction passage S1 may extend in a front-to-rear direction, the nozzle assembly T2 may be installed at the front of the cup housing 1, and the handle assembly T3 may be installed at the rear of the cup housing 1. Thus, when using the hand-held cleaner T, the user can lift the hand-held cleaner T by holding the handle assembly T3 and then face the suction opening of the suction passage S1 to the place to be cleaned, so that dust and air outside the cup housing 1 can be sucked into the cup housing 1 through the suction passage S1.

Specifically, the nozzle assembly T2 is provided therein with a guide tube S11, the guide tube S11 is connected to an end (e.g., a rear end in fig. 3) of the suction passage S1 adjacent to the cup housing 1, and the guide tube S11 extends tangentially in a front-to-rear direction. Therefore, the air flow sucked from the suction inlet of the suction channel S1 can enter the cup shell 1 along the tangential direction to generate centrifugal force, thereby facilitating the separation of impurities such as dust in the air flow and improving the cleaning effect.

The airflow generating device 2 is arranged above the cyclone separation device 3 and is positioned at the downstream side of the cyclone separation device 3, and an air outlet 140 is formed at the top of the cup shell 1. Here, it should be noted that "downstream" in the present application means downstream in the flow direction of the air flow in the cup housing 1, and correspondingly, "upstream" in the present application means upstream in the flow direction of the air flow in the cup housing 1.

For example, referring to fig. 3, the airflow generating device 2 and the cyclone separating device 3 may be arranged in the axial direction of the cup housing 1, i.e., the cyclone separating device 3 is provided at one side of the airflow generating device 2 in the axial direction. Therefore, the air flow entering the cup shell 1 from the air suction channel S1 can firstly enter the cyclone separation device 3 for separation, then flows to the air flow generation device 2, and finally is discharged out of the cup shell 1 from the air outlet 140 at the top of the cup shell 1. From this, can make the air current passageway in the cup shell 1 the shortest and the air current direction does not change, reduced the vacuum loss effectively, reduced the energy consumption to can reduce air current generating device 2's volume and weight, make dirt cup subassembly T1's structure compacter, small and exquisite, rule, the miniaturized development requirement of adaptation handheld dust catcher T, the user of being convenient for carries. Meanwhile, the gravity center of the handheld dust collector T can be moved forwards, the weight of the handle assembly T3 is reduced, the force required by a user for holding the handheld dust collector T is reduced, and the handheld dust collector T is convenient for the user to use. In addition, the airflow generating device 2 can be effectively protected, and dust in the airflow can be prevented from entering the airflow transmitting device to damage the airflow device.

Specifically, the top of the cup housing 1 may be provided with a cup top cover 14, and the air outlet 140 may be formed on the cup top cover 14. Simple structure and convenient processing.

For example, when the handheld vacuum cleaner T cup is used, a user can lift the handheld vacuum cleaner T by holding the handle assembly T3, and then the suction channel S1 faces the place to be cleaned, and then the airflow generating device 2 can be activated, when the airflow generating device 2 is activated, negative pressure can be generated inside the cup housing 1, and then dust and air outside the cup housing 1 can be sucked into the cup housing 1 through the suction channel S1 and separated by the cyclone separation device 3, and the separated dust and air can be retained in the cup housing 1, and the separated clean air can flow to the air outlet 140 at the top of the cup housing 1 through the airflow emission device and discharged out of the cup housing 1, thereby achieving dust collection and cleaning operations of the handheld vacuum cleaner T.

According to the handheld dust collector T provided by the embodiment of the invention, the airflow generating device 2 is arranged above the cyclone separation device 3 and at the downstream side of the cyclone separation device 3, and the air outlet 140 is arranged at the top of the cup shell 1, so that the airflow channel in the cup shell 1 is effectively shortened, and the flowing direction of the airflow in the cup shell 1 is basically not changed, thereby effectively reducing the loss of vacuum degree and energy consumption, enabling the dust cup assembly T1 to be more compact, small and regular in structure, adapting to the development requirement of miniaturization of the handheld dust collector T, and being convenient for users to carry. Meanwhile, the gravity center of the handheld dust collector T can be moved forwards, the weight of the handle assembly T3 is reduced, the force required by a user for holding the handheld dust collector T is reduced, and the handheld dust collector T is convenient for the user to use. In addition, the airflow generating device 2 can be effectively protected, and dust in the airflow can be prevented from entering the airflow transmitting device to damage the airflow device.

According to some embodiments of the invention, referring to figure 30, upstream filtering means 61 is provided between the airflow generating means 2 and the cyclonic separating apparatus 3. Therefore, the clean air separated by the cyclone separation device 3 can be filtered again by the upstream filter device 61 and then flows to the airflow generating device 2, thereby not only improving the cleaning effect, but also preventing the dust in the airflow from entering the airflow emitting device to cause the airflow generating device, effectively protecting the airflow generating device 2 and improving the reliability of the airflow generating device 2.

Alternatively, the upstream filtering device 61 may be a filter cotton or the like, but is not limited thereto.

Further, a downstream filtering device 62 is provided on the downstream side of the airflow generating device 2. Referring to fig. 30, the downstream filter device 62 may be disposed above the airflow generating device 2. Therefore, after the airflow flows out of the airflow generating device 2, the airflow can be filtered and dedusted again by the downstream filtering device 62 and then is discharged from the air outlet 140 at the top of the cup shell 1, so that secondary pollution is prevented, and the cleaning effect of the handheld dust collector T is further improved.

According to some embodiments of the invention, the airflow generating device 2 comprises: the negative pressure unit 21 and the hood 22 covering the negative pressure unit 21, the hood 22 has a plurality of exhaust holes 220, and the downstream filter device 62 is annular and is wrapped around the hood 22 to surround the exhaust holes 220. Specifically, the negative pressure unit 21 includes a wind wheel 212 and a motor 211 connected to the wind wheel 212. Alternatively, the motor 211 may be a DC motor, a BLDC motor, or the like. The exhaust hole 220 may be a through hole formed in the hood 22, and the shape of the exhaust hole 220 may be formed in a circular shape, an oval shape, a square shape, an irregular shape, or the like. Therefore, the air flow in the air flow generating device 2 can flow out from the air vent 220, and after being filtered by the downstream filtering device 62, the air flow is exhausted from the air outlet 140 at the top of the cup shell 1.

Specifically, the exhaust vents 140 are disposed around the downstream filtering device 62. For example, referring to fig. 1 and 2, the air discharge ports 140 may be provided at intervals in the circumferential direction of the cup top 14. Alternatively, the air discharge opening 140 may be formed as a long-shaped through hole, but is not limited thereto. Therefore, the air flow channel between the downstream filtering device 62 and the air outlet 140 can be shortened, so that the clean air flow filtered by the downstream filtering device 62 is directly discharged from the air outlet 140, the flow resistance of the air flow is reduced, and the energy consumption of the handheld dust collector T is further reduced.

Optionally, the downstream filtering device 62 is a HEPA filter.

According to some embodiments of the present invention, the air outlet direction of the air outlet 140 is inclined upward relative to the axial direction of the air suction passage S1. Therefore, when the user uses the handheld dust collector T, the clean air discharged from the air outlet 140 can obliquely flow out towards the direction far away from the air suction channel S1, so that the clean air at the air outlet 140 can be prevented from being directly blown to the place to be cleaned (such as the ground, a sofa, etc.), the clean air is prevented from rolling up impurities such as dust at the place to be cleaned, and the cleaning efficiency of the handheld dust collector T is improved.

Specifically, the cyclonic separating apparatus 3 comprises: a primary cyclone 311, a secondary cyclone 312 arranged in the primary cyclone 311, and a filter element 313 arranged in the secondary cyclone 312. The airflow enters the space between the cup shell 1 and the primary cyclone separator 311 along the tangential direction through the suction passage S1 to perform primary cyclone separation, then enters the space between the secondary cyclone separator 312 and the filter core 313 to perform secondary cyclone separation through the primary cyclone separator 311 and the secondary cyclone separator 312, and then flows to the airflow generating device 2 through the filter core 313.

Referring to fig. 22, the primary cyclone 311 may be formed in a substantially cylindrical structure, the primary cyclone 311 is provided with a plurality of first air inlets 3111, the secondary cyclone 312 is disposed in the primary cyclone 311, the secondary cyclone 312 may be formed in a substantially conical structure, the upper end sidewall of the secondary cyclone 312 is provided with a second air inlet 3121, the filter core 313 may be formed in a cylindrical shape and disposed in the secondary cyclone 312, one axial end (e.g., the upper end in fig. 22) of the filter core 313 has an air outlet, the other axial end (e.g., the lower end in fig. 22) of the filter core 313 is provided with an ash blocking end surface 3131, and the ash blocking end surface 3131 or an end (e.g., the lower end in fig. 22) of the filter core 313 adjacent to the ash blocking end surface 3131 has a plurality of air inlet gaps 3132.

The second inlet port 3121 may preferably extend tangentially along the sidewall of the secondary cyclone 312. Thus, the airflow is made to enter the secondary cyclone 312 tangentially, and cyclonic separation is performed between the secondary cyclone 312 and the filter element 313.

For example, the airflow may tangentially enter the cup housing 1, perform primary cyclone separation between the primary cyclone 311 and the cup housing 1, then enter between the primary cyclone 311 and the secondary cyclone 312 from the first inlet port 3111, at which time coarse ash (i.e. trash such as dust with larger particles) in the airflow may be primarily separated, then the primarily separated airflow may tangentially enter the secondary cyclone 312 from the second inlet port 3121, perform secondary cyclone separation between the secondary cyclone 312 and the filter core 313, at which time finer dust in the airflow may be separated under the centrifugal force and during the collision of the airflow with the ash blocking end surface 3131, and finally the airflow enters the filter core 313 from the air inlet gap 3132 and flows to the airflow generating device 2 from the air outlet 3132. Therefore, the airflow can be separated for a plurality of times through the cyclone separation device 3, and the separation effect is effectively improved.

Alternatively, the filter element 313 is integral with the primary cyclone 311 and the secondary cyclone 312 is removably attached to the primary cyclone 311. For example, the secondary cyclone 312 and the primary cyclone 311 may be connected by a snap-fit structure or the like. Therefore, the processing technology of the cyclone separation device 3 can be simplified, and the secondary cyclone separator 312 is convenient to disassemble and assemble, so that the secondary cyclone separator 312 can be conveniently disassembled to carry out operations such as replacement and cleaning, and the assembly efficiency of the cyclone separation device 3 is improved.

According to some embodiments of the present invention, the ash blocking end surface 3131 is formed as a curved surface protruding away from the air outlet. Therefore, the contact area between the airflow and the dust blocking end surface 3131 can be increased, the dust-air separation effect can be improved, and the noise and the sound of the airflow are reduced.

Optionally, a dust blocking rib 16 is provided on an inner wall surface of the dirt cup. For example, the dust blocking rib 16 can be arranged on the inner bottom wall and/or the inner side wall of the cup shell 1, so that when the dust and air are separated in the cup shell 1 in a cyclone manner, the dust in the dust and air can be blocked by the dust blocking rib, the dust and air separation efficiency and effect are improved, the probability that the dust is rolled up by the airflow for the second time is reduced, and the dust and air separation efficiency and effect are further improved.

According to some embodiments of the present invention, the handle assembly T3 includes a handle 4 for mounting with the cup housing 1 and a power supply 5 connected to the handle 4 for supplying power to the airflow generating device 2, wherein the handheld vacuum cleaner T has a heat dissipating air duct S2 therein for directing the airflow in the cup housing 1 to the power supply 5. Specifically, the handle 4 is mounted on the cup housing 1 and is used for holding, and the power source 5 may be provided below the handle 4. The heat dissipating air duct S2 may direct the airflow outside the handheld vacuum cleaner T to the power supply 5, direct a portion of the airflow sucked into the cup housing 1 through the air suction duct S1 to the power supply 5, or direct the airflow cleaned by the cyclone separator to the power supply 5. Therefore, the heat of the power supply 5 can be taken away through the airflow, so that the cooling of the power supply 5 can be accelerated, the heat dissipation performance of the power supply 5 is improved, the temperature of the power supply 5 is reduced, and the reliability and the cleaning effect of the handheld dust collector T are improved.

Specifically, the inlet S21 of the heat dissipation air duct S2 is communicated to the airflow generation device 2, and the outlet S22 of the heat dissipation air duct S2 is communicated to the power supply 5. Specifically, referring to fig. 23, the power supply 5 may include a battery case 502 and a battery pack 501, the battery pack 501 being provided in the battery case 502. The battery pack 501 may be a common battery or a storage battery. The inlet S21 of the heat dissipation air duct S2 may penetrate through the hood 22 of the airflow generating device 2, and the outlet S22 of the heat dissipation air duct S2 may penetrate through the battery case 502. Therefore, the airflow entering from the air suction channel S1 is separated by the cyclone separation device 3 in advance and then flows to the airflow generation device 2, and part of the airflow is guided to the battery pack 501 of the power supply 5 through the heat dissipation air duct S2 while the airflow flows to the airflow generation device 2 or after the airflow flows into the airflow generation device 2, so that the separated clean air can be guided to the battery pack 501 of the power supply 5, thereby preventing dust and the like from entering the power supply 5 and damaging the power supply 5 and improving the cooling effect. Meanwhile, the processing and the realization of the inlet of the heat dissipation air duct S2 are facilitated, and the air flow pressure is large, so that the air flow can be blown to the power supply 5 conveniently.

According to some embodiments of the present invention, the inlet S21 of the cooling air duct S2 is disposed adjacent to the outlet of the wind wheel 212. Therefore, the air flow can enter the heat dissipation air channel S2 before passing through the motor 211, so that the air flow entering the heat dissipation air channel S2 can be prevented from being heated by the motor 211, the temperature of the air flow entering the heat dissipation air channel S2 is reduced, and the cooling effect of the air flow on the power supply 5 is ensured.

According to some embodiments of the present invention, the handle 4 includes a handle housing 42 assembled to the cup housing 1 and an inner partition 43 provided within the handle housing 42, and at least a section of the heat dissipation duct S2 is formed between the inner partition 43 and the handle housing 42. Thus, a heat dissipation duct S2 is conveniently defined within the hand-held cleaner T to direct the air flow within the cup housing 1 to the power source 5.

Optionally, the internal partition 43 is removably connected to the handle housing 42. For example, the inner partition 43 may be attached by a snap fit to the handle housing 42. Therefore, the position of the inner partition plate 43 can be flexibly adjusted according to the specific specification and model of the handheld dust collector T, the position of the inlet S21 of the heat dissipation air duct S2 is changed, and the heat dissipation air duct S2 can be cleaned by detaching the inner partition plate 43 and the handle shell 42, so that the dust and air can be better prevented from polluting the power supply 5.

According to the handheld dust collector T provided by the embodiment of the invention, the air flow channel in the cup shell 1 is effectively shortened, the energy consumption is reduced, the structure of the dust cup assembly T1 is more compact, small and regular, the development requirement of miniaturization of the handheld dust collector T is met, the handheld dust collector T is convenient to carry by a user, the dust-air separation effect is good, and the cleaning efficiency is high.

In the following, a hand-held cleaner T according to an embodiment of the invention will be described with reference to Figs. 1 to 30.

Referring to fig. 1, a hand-held cleaner T according to an embodiment of the present invention includes: a dirt cup assembly T1, a suction nozzle assembly T2, and a handle assembly T3.

Referring to fig. 1 to 4, the dirt cup a assembly T1 includes a cup housing 1, and an airflow generating device 2 and a cyclone separating device 3 provided in the cup housing 1, a suction nozzle assembly T2 mounted on the cup housing 1 and defining a suction passage S1, and a handle assembly T3 mounted on the cup housing 1 and used for holding.

Referring to fig. 22, one end (e.g., a rear end in fig. 22) of the suction passage S1 communicates with the cup housing 1, and the other end (e.g., a front end in fig. 22) of the suction passage S1 has a suction port through which dust and other debris can enter the cup housing 1 through the suction port of the suction passage S1. Preferably, a guide tube S11 is provided in the nozzle assembly T2, and the guide tube S11 is configured to allow the airflow to enter the cup housing 1 through the suction passage S1 in a tangential direction, so that the airflow generates a centrifugal force, thereby facilitating separation of impurities such as dust in the airflow and improving cleaning effect.

Therefore, when the handheld dust collector T is used, a user can lift the handheld dust collector T by holding the handle assembly T3, then the suction channel S1 faces the position to be cleaned, then the airflow generating device 2 can be started, negative pressure can be generated inside the cup shell 1 after the airflow generating device 2 is started, dust and air outside the cup shell 1 can be sucked into the cup shell 1 through the suction channel S1 to be separated by the cyclone separation device 3 in a cyclone mode, the separated dust can be stored in the cup shell 1, and the separated clean air can be discharged out of the cup shell 1, so that dust collection and cleaning operation of the handheld dust collector T is achieved.

Here, it should be noted that the airflow generation device 2 refers to an assembly including a driving component (e.g., a motor 211 described below) and a power component (e.g., a wind turbine 212 described below) to be capable of generating negative pressure. In addition, the cyclone separation principle of the cyclone 3 is known to the person skilled in the art and will not be described in detail here. In addition, the dirt cup assembly T1 according to the present invention can also be used on other types of vacuum cleaners than hand vacuum cleaners T, such as push type vacuum cleaners, as the case may be.

Referring to fig. 4, a hand-held cleaner T according to some embodiments of the invention has the features: the upstream side of the airflow generating device 2 is provided with an upstream filtering device 61 so that the airflow can be filtered and dedusted by the upstream filtering device 61 before flowing into the airflow generating device 2, and the downstream side of the airflow generating device 2 is provided with a downstream filtering device 62 so that the airflow can be filtered and dedusted by the downstream filtering device 62 after flowing out of the airflow generating device 2.

Here, it should be noted that "downstream" in the present application means downstream in the flow direction of the gas flow, and correspondingly, "upstream" in the present application means upstream in the flow direction of the gas flow.

In some specific examples of the present invention, referring to fig. 4, the cyclone separation device 3 may be disposed at an upstream side of the airflow generation device 2, that is, the dust gas is separated by the cyclone separation device 3 in advance and then flows toward the airflow generation device 2. At this time, the upstream filtering means 61 may be arranged downstream of the cyclonic separating apparatus 3 (i.e. between the cyclonic separating apparatus 3 and the airflow generating means 2) or upstream (this example is not shown). Wherein, when the upstream filtering means 61 is disposed downstream of the cyclone 3, the clean air cyclone-separated by the cyclone 3 can be re-filtered by the upstream filtering means 61 and then flow to the airflow generating means 2, thereby not only improving the cleaning effect but also effectively protecting the airflow generating means 2. When the upstream filter 61 is disposed upstream of the cyclone 3, the dust and air which do not flow into the cyclone 3 can be filtered by the upstream filter 61 in advance, thereby not only improving the cleaning effect but also effectively protecting the cyclone 3. In addition, since the downstream filtering device 62 is disposed downstream of the air flow generating device 2, the air flowing out of the air flow generating device 2 can be filtered again by the downstream filtering device 62 and then flow out of the cup housing 1, thereby effectively preventing secondary pollution and improving cleaning effect.

In other specific examples of the present invention, the cyclone device 3 may be disposed at the downstream side (not shown) of the airflow generating device 2, that is, the dust and air first passes through the airflow generating device 2 and then flows to the cyclone device 3 to be separated. In this case, the downstream filtering means 62 may be located upstream of the cyclonic separating apparatus 3 (i.e. between the cyclonic separating apparatus 3 and the airflow generating means 2) or downstream. Wherein when the downstream filtering means 62 is disposed upstream of the cyclonic separating apparatus 3, the dust gas which does not flow into the cyclonic separating apparatus 3 can be pre-filtered by the downstream filtering means 62, thereby not only improving the cleaning effect but also effectively protecting the cyclonic separating apparatus 3. When the downstream filter means 62 is disposed downstream of the cyclonic separating apparatus 3, the clean air cyclone-separated by the cyclonic separating apparatus 3 can be re-filtered by the downstream filter means 62 and then flow out of the cup housing 1, thereby effectively improving the cleaning effect. In addition, since the upstream filter device 61 is disposed upstream of the air flow generating device 2, the dust gas that does not flow into the air flow generating device 2 can be filtered by the upstream filter device 61 in advance, whereby not only the cleaning effect is improved, but also the air flow generating device 2 can be effectively protected.

Thus, according to the hand-held cleaner T of the above embodiment of the present invention, the upstream filtering device 61 is provided upstream of the airflow generating device 2, and the downstream filtering device 62 is provided downstream of the airflow generating device 2, so that not only the cleaning effect of the whole hand-held cleaner T is improved, but also the airflow generating device 2 and the cyclone 3 can be effectively protected.

Of course, the invention is not limited thereto, and in other embodiments of the invention, when the handheld vacuum cleaner T according to the embodiments of the invention has other features, the handheld vacuum cleaner T may further include only the upstream filtering device 61, only the downstream filtering device 62, or neither the upstream filtering device 61 nor the downstream filtering device 62.

A hand-held cleaner T according to some embodiments of the invention will now be described based on the construction and layout of the dirt cup assembly T1.

Firstly, the cup shell 1, the airflow generating device 2, the cyclone separation device 3, the downstream filtering device 62 and the upstream filter The relative positioning of the filter assembly 61 will be described with respect to a hand-held vacuum cleaner T according to some embodiments of the invention.

In some embodiments of the invention, referring to fig. 4, the central axis of the airflow generating device 2, the central axis of the downstream filter device 62, and the central axis of the upstream filter device 61 coincide. That is, the air flow generating device 2, the downstream filter device 62, and the upstream filter device 61 are coaxially arranged. Therefore, the dust cup assembly T1 is convenient to process and assemble, has a more compact, small and regular structure, meets the miniaturization development requirement of the handheld dust collector T, and is convenient for a user to carry.

Here, the central axis of the airflow generation device 2 refers to a central axis of a driving member of the airflow generation device 2, and for example, when the driving member is the motor 211, the central axis of the motor 211, that is, a rotation axis of the motor 211, is the central axis of the airflow generation device 2. In addition, in the present embodiment, the downstream filter device 62 and the upstream filter device 61 are each formed in a shape having a straight center axis, such as a cylindrical shape, an annular cylindrical shape, a prismatic shape, a flat cylindrical shape, or the like. For example, in some embodiments of the invention, the downstream filter device 62 may be formed in an annular cylindrical shape and the upstream filter device 61 may be formed in an oblate cylindrical shape, thereby facilitating manufacturing and fabrication. Alternatively, the motor 211 may be a DC motor, a BLDC motor, or the like.

Further, referring to fig. 4, the cup housing 1 may be formed in a cylindrical shape (here, "cylindrical" is to be understood in a broad sense, i.e., a cylindrical shape is not required in a strict sense, for example, the cup housing 1 shown in fig. 4 may also be understood as a cylindrical shape), in which case, the central axis Y-Y of the cup housing 1, the central axis of the gas flow generating device 2, the central axis of the downstream filter device 62, and the central axis of the upstream filter device 61 coincide. That is, the airflow generating device 2, the downstream filter device 62, and the upstream filter device 61 are coaxially arranged, and the cup housing 1 is coaxially covered outside the three. From this, convenient processing and assembly more make dirt cup subassembly T1's structure compacter, small and exquisite, rule moreover, adapt to handheld dust catcher T's miniaturized development requirement more, and the user of being convenient for more carries, and the focus of complete machine is more steady, the outward appearance is more pleasing to the eye moreover.

In some embodiments of the invention, referring to figure 4, the centre of gravity of the airflow generating means 2 and the centre of gravity of the cyclonic separating apparatus 3 are both located on the central axis Y-Y of the cup housing 1. From this, the focus of complete machine is more steady, makes things convenient for processing and assembly more, makes dirt cup subassembly T1's structure compacter, small and exquisite, rule moreover, adapts to handheld dust catcher T's miniaturized development requirement more, and the user of being convenient for more carries, and the outward appearance is more pleasing to the eye. Here, the cup housing 1 is formed in a shape having a straight center axis, for example, a cylindrical shape.

In some embodiments of the invention, referring to figure 4, the central axis of the airflow generating means 2 and the central axis of the cyclonic separating apparatus 3 coincide. That is, both the airflow generating means 2 and the cyclonic separating apparatus 3 are arranged coaxially. From this, convenient processing and assembly more make dirt cup subassembly T1's structure compacter, small and exquisite, rule moreover, adapt to handheld dust catcher T's miniaturized development requirement more, and the user of being convenient for more carries, and the focus of complete machine is more steady, the outward appearance is more pleasing to the eye moreover. Here, it should be noted that the cyclone 3 is formed in a shape having a straight central axis, such as the shape of the cyclone 3 shown in fig. 4.

Further, referring to fig. 4, the cup housing 1 may be formed in a cylindrical shape (here, "cylindrical" is taken as a broad sense, i.e., a cylindrical shape is not required in a strict sense, for example, the shape of the cup housing 1 shown in fig. 4 may also be taken as a cylindrical shape), in which case, the central axis Y-Y of the cup housing 1, the central axis of the airflow generation device 2, and the central axis of the cyclone 3 coincide. That is, the airflow generating apparatus 2 and the cyclone 3 are coaxially arranged while the cup housing 1 is coaxially housed outside of both. From this, the focus of complete machine is more steady, makes things convenient for processing and assembly more, makes dirt cup subassembly T1's structure compacter, small and exquisite, rule moreover, adapts to handheld dust catcher T's miniaturized development requirement more, and the user of being convenient for more carries, and the outward appearance is more pleasing to the eye.

Next, the hand-held cleaner T according to some embodiments of the present invention will be described based on the arrangement of the cup housing 1.

In some embodiments of the present invention, referring to fig. 4, the cup housing 1 may include: a lower case 11, a cup bottom cover 12 and an upper case 13, wherein the top end and the bottom end of the lower case 11 are both open, the upper case 13 is disposed on the top of the lower case 11 and defines a containing cavity together with the lower case 11, and the cup bottom cover 12 is disposed on the bottom of the lower case 11 to open and close the bottom end of the lower case 11, that is, the cup bottom cover 12 is openably disposed on the bottom of the lower case 11. Thus, when the cup bottom cover 12 is opened, dust deposited on the cup bottom cover 12 can be poured out. Here, it should be noted that, in this document, the cup bottom cover 12 refers to a cover-shaped body having a height much smaller than that of the lower case 11.

Preferably, referring to fig. 4, the upper case 13 is detachably coupled to the lower case 11, that is, the upper case 13 is detachably coupled to the top of the lower case 11, so that the user can detach the lower case 11 from the upper case 13 by himself or herself as desired. Thus, when the user desires to pour out the dust inside the cup housing 1, the lower case 11 can be detached from the upper case 13 and the lower case 11 can be turned upside down without opening the cup bottom cover 12, to achieve the same effect of pouring out the dust. Moreover, when the user detaches the lower housing 11 from the upper housing 13, it is also possible to clean the components mounted on the upper housing 13 (particularly, the exposed components, i.e., the components originally covered by the lower housing 11 and not easily accessible, such as the lower half of the cyclone separation device 3 shown in fig. 4), as well as the lower housing 11, thereby greatly facilitating the cleaning of the user and improving the cleaning effect of the hand-held cleaner T.

Preferably, referring to fig. 4, the difference between the height of the upper case 13 and the height of the lower case 11 is 0mm to 5mm, that is, the heights of the upper case 13 and the lower case 11 are substantially equal, so that the volume of the upper case 13 and the volume of the lower case 11 are substantially equal when the cross-sectional area of the upper case 13 and the cross-sectional area of the lower case 11 are substantially equal. At this time, both the upper case 13 and the lower case 11 may be used to house components, for example, components within the cup case 1 that need to be provided, half of the volume of which may be housed within the upper case 13 and the other half of the volume of which may be housed within the lower case 11. For example, in the example shown in fig. 4, when the airflow generating device 2 is located above the cyclonic separating apparatus 3 and on the downstream side of the cyclonic separating apparatus 3, most of the cyclonic separating apparatus 3 in the height direction may be accommodated within the lower casing 11.

Thus, when the user removes the lower housing 11 from the upper housing 13, the components (e.g., the cyclone 3, which is not easily cleaned) in the cup housing 1 can be effectively cleaned, and the stubborn dirt in the lower housing 11 can be removed. Here, it can be understood that, when the height of the cup housing 1 is high and the gap between the cup housing 1 and its internal components is small, if the user merely opens the cup bottom cover 12, it is difficult to insert fingers into the gap between the cup housing 1 and its internal components to clean the internal components or the inner wall of the cup housing 1, however, according to the cup housing 1 of the embodiment of the present invention, since the cup housing 1 is processed into two upper and lower parts which can be separated, the user can conveniently complete the cleaning operation.

In some embodiments of the present invention, referring to fig. 4, the inner wall surface of the cup housing 1 is provided with the dust blocking rib 16, for example, the dust blocking rib 16 may be disposed on the inner bottom wall and/or the inner side wall of the cup housing 1, so that when the dust and air are separated in the cup housing 1 by cyclone, the dust and air in the dust and air can be intercepted by the dust blocking rib 16, thereby improving the dust and air separation efficiency and effect, reducing the probability of the dust being rolled up by the airflow for the second time, and further improving the dust and air separation efficiency and effect.

In some embodiments of the present invention, referring to fig. 4, when the upper end of the lower housing 11 and the lower end of the upper housing 13 are both cylindrical, the upper housing 13 and the lower housing 11 may be detachably connected by a rotating action, for example, the upper housing 13 and the lower housing 11 may be connected by a rotary fastening structure or a rotary screw structure described below. At this time, when the user needs to remove the lower housing 11 from the upper housing 13, the lower housing 11 may be rotated counterclockwise (or clockwise) to pour the dust in the lower housing 11, or wash stubborn dust in the lower housing 11, or clean the components mounted on the upper housing 13 or the inside of the lower housing 11. Thus, the user can easily detach and attach the upper case 13 and the lower case 11.

In some embodiments of the present invention, referring to fig. 4, 6 and 7, the upper end of the lower housing 11 and the lower end of the upper housing 13 are both cylindrical, the upper housing 13 is detachably connected to the lower housing 11 by a rotary catch structure 19, and the rotary catch structure 19 includes: a rotating mating groove 191 and a rotating mating strip 192. The rotary insertion groove 191 is formed on the inner circumferential surface of the upper end of the lower housing 11 (or on the inner circumferential surface of the lower end of the upper housing 13) and has an opening at one end, the rotary insertion strip 192 is formed on the outer circumferential surface of the lower end of the upper housing 13 (or on the outer circumferential surface of the upper end of the lower housing 11) and has a wedge shape, and the rotary insertion strip 192 extends into the rotary insertion groove 191 through the opening and is inserted and locked with the other end of the rotary insertion groove 191 through a rotary motion. From this, rotatory structure of detaining the position simple structure, be convenient for processing and dismouting, when installation casing 13 and lower casing 11, the user only need with rotatory insert the vertical open end of inserting the joining in marriage groove from rotatory and pack into rotatory inserting the joining in marriage the inslot, then rotatory casing 13 or casing 11 down, after hearing the click sound, lower casing 11 and last casing 13 assemble in place, locking connection.

In some embodiments of the present invention, the upper end of the lower housing 11 and the lower end of the upper housing 13 are both cylindrical, and the upper housing 13 is detachably connected to the lower housing 11 by a rotary screw structure (this example is not shown in the drawings), which includes: internal threads and external threads. For example, in one specific example of the present invention, an internal thread is formed on the upper end inner peripheral surface of the lower housing 11, and an external thread is formed on the lower end outer peripheral surface of the upper housing 13 and threadedly engaged with the internal thread. For example, in another specific example of the present invention, an internal thread is formed on the lower end inner peripheral surface of the upper housing 13, and an external thread is formed on the upper end outer peripheral surface of the lower housing 11 and threadedly engaged with the internal thread. Therefore, the rotary thread structure is simple in structure and convenient to process, disassemble and assemble.

Of course, the present invention is not limited thereto, and in other embodiments of the present invention, the upper housing 13 and the lower housing 11 can be detachably connected in other manners. For example, the upper housing 13 and the lower housing 11 may be detachably connected by screws or a button hook structure described below (this example is not shown in the drawings). At this time, the upper end of the lower case 11 and the lower end of the upper case 13 are not required to be cylindrical, so that the selectable range of the upper case 13 and the lower case 11 can be expanded to better meet the actual demand.

For example, in some embodiments of the present invention, the upper housing 13 and the lower housing 11 may be detachably connected by a button hook structure, wherein the button hook structure may include: the unlocking device comprises a first clamping hook, a second clamping hook, an elastic piece and an unlocking piece, wherein the first clamping hook is arranged at the lower end of an upper shell 13, the second clamping hook is arranged at the upper end of a lower shell 11, the elastic piece is arranged on the upper shell 13 and used for pushing the first clamping hook to be locked with the second clamping hook normally or arranged on the lower shell 11 and used for pushing the second clamping hook to be locked with the first clamping hook normally, and the unlocking piece is arranged on the upper shell 13 or the lower shell 11 and used for compressing the elastic piece when being triggered so as to unlock the first clamping hook and the second clamping hook.

In some embodiments of the present invention, referring to fig. 4, the cup housing 1 may include: a cup body, the top of which is open, and a cup top cover 14 provided on the top of the cup body to open and close the top of the cup body. Therefore, when a user needs to clean, replace, maintain and the like the components in the cup shell 1, the cup top cover 14 can be opened for convenient operation.

Optionally, the cup top cover 14 is rotatably and separately connected with the cup body through a rotary fastening structure or a rotary thread structure, so that a user can detach the cup top cover 14 from the cup body only by rotating the cup top cover and lifting the cup top cover upwards, and therefore the operation is convenient.

In some embodiments of the invention, referring to fig. 2 and 4, the upper end of the cup body and the lower end of the cup top 14 are both cylindrical. The cup body is detachably connected with the cup top cover 14 through a rotary buckling structure 15. The rotary fastening structure 15 includes: a rotating mating groove 151 and a rotating mating strip 152. For example, the rotation insertion and engagement groove 151 may be formed on the inner peripheral surface of the lower end of the cup top cover 14 and have an opening at one end, the rotation insertion and engagement strip 152 may be formed on the outer peripheral surface of the upper end of the cup body and have a wedge shape, and the rotation insertion and engagement strip 152 protrudes into the rotation insertion and engagement groove 151 through the opening and is locked with the other end of the rotation insertion and engagement groove 151 through the rotation movement. Therefore, the rotary buckling structure 15 is simple in structure and convenient to process, disassemble and assemble, when the cup top cover 14 and the cup body are installed, a user only needs to vertically install the rotary inserting and matching strip 152 into the rotary inserting and matching groove 151 from the opening end of the rotary inserting and matching groove 151, then the cup top cover 14 or the cup body is rotated, and after a click sound is heard, the cup top cover 14 and the cup body are assembled in place and are connected in a locking mode.

In some embodiments of the present invention (not shown), the upper end of the cup body and the lower end of the cup top 14 are both cylindrical, and the cup top 14 is detachably connected to the cup body by a rotary screw structure (not shown), which includes: internal threads and external threads. For example, in one specific example of the present invention, an internal thread is formed on the upper end inner peripheral surface of the cup body, and an external thread is formed on the lower end outer peripheral surface of the cup top lid 14 and threadedly engaged with the internal thread. For example, in another specific example of the present invention, an internal thread is formed on the lower end inner peripheral surface of the cup top lid 14, and an external thread is formed on the upper end outer peripheral surface of the cup body and threadedly engaged with the internal thread. Therefore, the rotary thread structure is simple in structure and convenient to process, disassemble and assemble.

Of course, the invention is not limited thereto, and in other embodiments of the invention, the detachable connection of the cup top cover 14 and the cup body can be realized in other manners. For example, the cup top cover 14 and the cup body may be detachably connected by screws or the like. At this time, the upper end of the cup body and the lower end of the cup top cover 14 are not required to be cylindrical, so that the selectable range of the cup top cover 14 and the cup body can be expanded, and the actual requirements can be better met. For another example, the cup top cover 14 can be connected to the cup body via a button hook structure and a hinge structure, so that the user can unlock the button hook structure and lift the cup top cover 14 from the cup body, thereby facilitating the operation. The structure and principle of the button hook structure are well known to those skilled in the art, and will not be described in detail herein.

In addition, the cup body may be a non-detachable one-piece cup body with an open top end and a closed bottom end, or a detachable multi-piece assembly composed of the lower shell 11, the upper shell 13 and the cup bottom cover 12 as described above, in which case the cup top cover 14 is disposed on the top of the upper shell 13 to open and close the top end of the upper shell 13 (as shown in fig. 4).

Next, a description will be given of a hand-held suction according to some embodiments of the present invention based on the downstream filter 62 arrangement A dust collector T.

In some embodiments of the invention, the top of the cup housing 1 is openable, for example, the cup top lid 14 described above may be removable from the top of the cup body or may be openable upwardly, the airflow generating device 2 may be provided above the cyclonic separating apparatus 3, and the downstream filtering device 62 may be located above or on top of the airflow generating device 2 and may be removably connected to the airflow generating device 2 or the cup housing 1 so as to be removable upwardly from the top of the cup housing 1 when the top of the cup housing 1 is opened. Thus, when the user opens the top of the cup housing 1, the downstream filter 62 can be seen and removed from the cup housing 1 or the airflow generating device 2 and removed for relevant operations, such as cleaning, replacement, maintenance, etc. of the downstream filter 62. For example, after the handheld vacuum cleaner T is used for a period of time, the top of the cup housing 1 can be opened, and then the downstream filtering device 62 is detached from the cup housing 1 or the airflow generating device 2, so that the downstream filtering device 62 can be conveniently and timely cleaned or replaced, the suction force of the handheld vacuum cleaner T can be maintained, and the cleaning effect can be ensured.

Therefore, according to the handheld dust collector T of the embodiment, the downstream filtering device 62 can be directly taken out, so that a user can conveniently clean dust on the downstream filtering device 62, the downstream filtering device 62 is kept clean, and the handheld dust collector T is facilitated to maintain the original dust collection capacity and efficacy ratio.

Preferably, with reference to fig. 4, the air flow generating device 2 comprises: the negative pressure unit 21 and the hood 22 covering the negative pressure unit 21 are provided with a plurality of exhaust holes 220 on the hood 22. For example, the negative pressure unit 21 may include a motor 211 and a wind wheel 212, the motor 211 may be connected to the top of the wind wheel 212 to drive the wind wheel 212 to rotate, and the hood 22 may include an upper hood covering the upper portion of the negative pressure unit 21 and a lower hood covering the lower portion of the negative pressure unit 21, the upper hood being connected to the top of the lower hood and having exhaust holes 220 formed thereon for exhausting the airflow sucked into the hood 22 by the negative pressure unit 21 to the outside of the hood 22.

Specifically, when the downstream filter device 62 is detachably connected to the airflow generating device 2, in a specific example of the present invention, the downstream filter device 62 may be configured in a ring shape and be wrapped around the hood 22 to surround the exhaust hole 220 (as shown in fig. 4), so that the downstream filter device 62 can perform effective filtering cleaning on the airflow discharged from the airflow generating device 2. Therefore, the downstream filtering device 62 has a simple structure and is convenient to process, and a user can conveniently take the downstream filtering device 62 off the air flow generating device 2, and the user can conveniently reinstall the cleaned or replaced downstream filtering device 62 on the air flow generating device 2, so that the operation is convenient. Of course, the present invention is not limited thereto, and the downstream filtering device 62 may be detachably disposed in the cup housing 1 in other manners, which will not be described in detail herein.

Further, as shown in fig. 4 and 5, the cup housing 1 includes a pressing structure 17, the hood 22 includes a support platform 222, and both axial ends of the downstream filter device 62 are respectively stopped between the pressing structure 17 and the support platform 222. Therefore, when the dirt cup assembly T1 is assembled in place, the downstream filtering device 62 can be tightly sleeved on the hood 22 on one hand, and can be pressed by the pressing structure 17 and the supporting platform 222 on the other hand, for example, the upper end of the downstream filtering device 62 can be stopped against the lower surface of the pressing structure 17, and the lower end of the downstream filtering device 62 can be stopped against the upper surface of the supporting platform 222, so that the position of the downstream filtering device 62 can be stabilized, the installation stability of the downstream filtering device 62 can be effectively improved, the downstream filtering device 62 can be ensured to work stably and reliably, and the filtering effect of the downstream filtering device 62 can be improved.

In summary, in the above embodiment of the present invention, when the user wishes to clean the downstream filter device 62, the user can manually grasp the cup top cover 14 and rotate it to be vertically upward to remove it from the cup body, and then see that the downstream filter device 62 is sleeved on the hood 22, and then the user can grasp the downstream filter device 62 and lift it upward to remove it, then remove the downstream filter device 62 to clean the surface dust, then put it under tap water to be washed, put the downstream filter device 62 under the sun to be dried after washing, and then sleeved on the hood 22 again, and then fit the cup top cover 14 on the cup body. Thus, the handheld vacuum cleaner T of this embodiment enables consumers to become accustomed to constantly cleaning the downstream filter 62, allowing the cleaner to remain clean and ensuring that suction is not reduced. Alternatively, the downstream filtration device 62 may be a HEPA, high efficiency air filter.

Next, a description will be given of a hand-held suction device according to some embodiments of the present invention based on the arrangement of the upstream filtering device 61 A dust collector T.

In some embodiments of the invention, when the airflow generating means 2 is arranged on the downstream side of the cyclonic separating apparatus 3, the upstream filtering means 61 may be arranged between the airflow generating means 2 and the cyclonic separating apparatus 3, preferably with the cyclonic separating apparatus 3 arranged on one axial side of the airflow generating means 2. Therefore, the dust cup component T1 is more compact and small in structure and better in smoothness.

In some embodiments of the invention, the bottom of the cup housing 1 is openable, for example, the lower housing 11 described above may be removed downwardly from the upper housing 13 or the cup bottom lid 12 may be lifted downwardly, the cyclonic separating apparatus 3 may be provided beneath the airflow generating apparatus 2, the cyclonic separating apparatus 3 may be releasably connected to the airflow generating apparatus 2 or the cup housing 1 so as to be removable downwardly from the bottom of the cup housing 1 when the bottom of the cup housing 1 is open, and the upstream filter means 61 may be carried by the cyclonic separating apparatus 3 so as to move synchronously with the cyclonic separating apparatus 3. Thus, when the user opens the bottom of the housing 1, the cyclonic separating apparatus 3 can be seen and removed from the housing 1 or the airflow generating device 2 and removed downwardly, whereupon the upstream filter means 61 carried by the cyclonic separating apparatus 3 can be removed downwardly with the cyclonic separating apparatus 3, whereafter the user can remove the upstream filter means 61 from the cyclonic separating apparatus 3 and perform relevant operations, such as cleaning, replacement, maintenance etc. of the upstream filter means 61.

For example, after the handheld vacuum cleaner T is used for a period of time, a user can open the bottom of the cup housing 1 by himself or herself as required, detach the cyclone separation device 3 from the airflow generation device 2 or the cup housing 1, and take out the cyclone separation device from the bottom of the cup housing 1, at this time, the upstream filter device 61 can be taken out along with the cyclone separation device 3, so that the user can clean the cyclone separation device 3, or perform operations such as cleaning and replacing on the upstream filter device 61, so that the handheld vacuum cleaner T maintains suction, and the cleaning effect of the handheld vacuum cleaner T is ensured.

Therefore, according to the handheld dust collector T of the embodiment, the upstream filtering device 61 can be conveniently taken out, so that a user can conveniently clean dust on the upstream filtering device 61, the upstream filtering device 61 is kept clean, and the handheld dust collector T is beneficial to maintaining the original dust collection capacity and efficacy ratio.

In some specific examples of the present invention, referring to fig. 4, the airflow generating device 2 includes a negative pressure unit 21 (e.g., a wind wheel 212 and a motor 211 connected to the wind wheel 212) and a hood 22 covering the negative pressure unit 21, the cyclone separation device 3 includes a cyclone separation part 31 and a mounting part 32 connected to the cyclone separation part 31, and the mounting part 32 is detachably connected to the hood 22. Therefore, the airflow generating device 2 and the cyclone separation device 3 are simple in structure and convenient to assemble and disassemble.

Referring to fig. 8, the cyclonic separating apparatus 3 comprises a cyclonic separating member 31 and a mounting member 32 connected to the cyclonic separating member 31, the mounting member 32 being releasably connected to the shroud 22. Specifically, the hood 22 has a hood upright section 221, the mounting member 32 includes a mounting upright section 321, and the mounting upright section 321 and the hood upright section 221 are rotatably detachably connected by the rotary catch structure 10 or the rotary screw structure. Thus, when a user desires to remove the cyclonic separating apparatus 3 from the airflow generating apparatus 2, the mounting upstand 321 may be rotated counterclockwise (or clockwise) to remove the cyclonic separating apparatus 3, and accordingly, when a user desires to mount the cyclonic separating apparatus 3 to the airflow generating apparatus 2, the mounting upstand 321 may be rotated in a direction opposite to that described above to mount the cyclonic separating apparatus 3 to the airflow generating apparatus 2. Thus, the user can very easily remove the cyclone separating apparatus 3 from the airflow generating apparatus 2 by simply rotating the cyclone separating apparatus 3, the required operation space is small, and the structure of the dirt cup assembly T1 can be more compact.

In some embodiments of the present invention, referring to fig. 8, the upper end of the mounting cylinder section 321 and the lower end of the hood cylinder section 221 are both cylindrical, the hood cylinder section 221 and the mounting cylinder section 321 are detachably connected by a rotary fastening structure 10, and the rotary fastening structure 10 includes: a rotating mating groove 101 and a rotating mating strip 102. For example, in one specific example of the present invention, the rotating insertion groove 101 is formed on the inner peripheral surface of the upper end of the mounting cylinder section 321 and has an opening at one end, the rotating insertion strip 102 is formed on the outer peripheral surface of the lower end of the hood cylinder section 221 and has a wedge shape, and the rotating insertion strip 102 protrudes into the rotating insertion groove 101 through the opening and is inserted and locked with the other end of the rotating insertion groove 101 by the rotating motion. Therefore, the rotary buckling structure 10 is simple in structure and convenient to process, disassemble and assemble, when the hood vertical cylinder section 221 and the installation vertical cylinder section 321 are installed, a user only needs to vertically install the rotary inserting and matching strips 102 into the rotary inserting and matching grooves 101 from the opening ends of the rotary inserting and matching grooves 101, then the hood vertical cylinder section 221 or the installation vertical cylinder section 321 is rotated, and after the clicking sound is heard, the installation vertical cylinder section 321 and the hood vertical cylinder section 221 are assembled in place and are in locking connection.

In other embodiments of the present invention, the upper end of the mounting spool section 321 and the lower end of the hood spool section 221 are both cylindrical, and the hood spool section 221 and the mounting spool section 321 are detachably connected by a rotary screw structure (not shown), which includes: internal threads and external threads. For example, in one specific example of the present invention, an internal thread is formed on the upper end inner peripheral surface of the mounting cylinder section 321, and an external thread is formed on the lower end outer peripheral surface of the hood cylinder section 221 and threadedly engaged with the internal thread. For example, in another specific example of the present invention, an internal thread is formed on the lower end inner peripheral surface of the hood pillar section 221, and an external thread is formed on the upper end outer peripheral surface of the mounting pillar section 321 and threadedly engaged with the internal thread. Therefore, the rotary thread structure is simple in structure and convenient to process, disassemble and assemble.

Of course, the invention is not limited thereto, and in other embodiments of the invention, the detachable connection of the hood pillar section 221 to the mounting pillar section 321 can be achieved in other ways. For example, the hood upright section 221 and the mounting upright section 321 can also be removably connected by a screw or hook structure. At this time, the upper end of the mounting cylindrical section 321 and the lower end of the hood cylindrical section 221 are not required to be cylindrical, so that the selectable range of the hood cylindrical section 221 and the mounting cylindrical section 321 can be expanded, and the actual requirements can be better met.

Referring to FIG. 4, the mounting assembly 32 further includes a mounting platform 322, the mounting platform 322 being connected to a lower end of the mounting spool section 321 to define with the mounting spool section 321 an open-topped mounting cavity, the upstream filter assembly 61 being disposed within the mounting cavity and supported on the mounting platform 322. Therefore, the structure of the mounting part 32 is simple and easy to process, the structure of the mounting part 32 is not only convenient to be assembled with and disassembled from the airflow generating device 2, but also the upstream filtering device 61 can be effectively supported and limited by the mounting part 32, so that a user can very conveniently take the upstream filtering device 61 off and back from the mounting part 32, and the user can conveniently clean, replace, maintain and the like the upstream filtering device 61. Preferably, the mounting platform 322 is an annular platform. Accordingly, the cyclone separation apparatus 3 can efficiently supply air to the airflow generation apparatus 2 through the inner ring of the mounting platform 322, thereby improving dust collection efficiency while ensuring stable mounting of the upstream filter device 61.

In some embodiments of the present invention, referring to fig. 4, the cyclone part 31 may include: cyclone separator group and filter core 313, filter core 313 sets up in cyclone separator group. Thereby, the clean air filtered by the cyclone group can flow out through the filter element 313, thereby improving the clean filtering effect. Of course, the invention is not limited thereto, and in other embodiments of the invention, the cyclonic separating apparatus 31 may also comprise only a set of cyclonic separators, without the filter element 313. The following description will be given only by way of example in which the cyclonic separating apparatus 31 includes both the cyclone group and the filter element 313.

Referring to fig. 4, the cyclone group may include: a primary cyclone 311 and a secondary cyclone 312 provided in the primary cyclone 311, and in this case, a filter core 313 is provided in the secondary cyclone 312. For example, in the example shown in fig. 4, the primary cyclone 311 may be formed in a substantially cylindrical structure, the primary cyclone 311 may be provided with a plurality of first gas inlets 3111, the secondary cyclone 312 may be provided in the primary cyclone 311, and the secondary cyclone 312 may be formed in a substantially conical structure, and the secondary gas inlets 3121 may be provided on an upper end sidewall of the secondary cyclone 312.

Therefore, during the operation of the handheld vacuum cleaner T, the airflow can enter the space between the cup shell 1 and the primary cyclone separator 311 through the suction passage S1 in a tangential direction to perform primary cyclone separation, then enter the space between the secondary cyclone separator 312 and the filter core 313 through the first air inlet 3111 on the primary cyclone separator 311 and the second air inlet 3121 on the secondary cyclone separator 312 in a tangential direction to perform secondary cyclone separation, and then flow to the airflow generating device 2 through the filter core 313. Of course, the invention is not limited thereto, and the cyclone separator set may be configured in other structures to realize single-stage cyclone filtration or more than two-stage cyclone filtration, that is, the cyclone separator set may have a single cone structure or a multi-cone structure, etc.

Preferably, referring to fig. 4, the filter element 313 has a barrel shape and has an outlet 3130 at one axial end thereof, and an ash blocking end surface 3131 at the other axial end thereof, the ash blocking end surface 3131 being formed as a curved surface protruding away from the outlet 3130. For example, in the example shown in fig. 9 and 10, the upper end of the filter core 313 has the air outlet 3130, the lower end of the filter core 313 is provided with the ash blocking end surface 3131, and the ash blocking end surface 3131 is formed as a curved surface protruding downward. Therefore, by arranging the dust blocking end surface 3131, fine dust can be blocked by the dust blocking end surface 3131 outside the filter element 313, and is prevented from flowing to the upstream filter device 61 and the motor 211, and the fine dust is prevented from polluting the upstream filter device 61 and the motor 211, so that the dust collection effect of the dust collector is ensured, and the service life of the motor 211 is prolonged.

Alternatively, referring to fig. 9 and 10, the ash blocking end surface 3131 may be configured as an arc-shaped surface, for example, a hemispherical curved surface, and thus, the ash blocking end surface 3131 may have a larger dust contact area, further improving the ash blocking effect, and the ash blocking may have low noise and no sharp and harsh, and may be suitable for indoor use.

In some specific examples of the present invention, referring to fig. 9 and 10, the ash blocking end surface 3131 may be a closed curved surface, in which case the end of the filter element 313 adjacent to the ash blocking end surface 3131 has a plurality of air inlet voids 3132 thereon. For example, the ash blocking end surface 3131 may be connected to the lower end of the filter element 313 by a plurality of connection ribs, the plurality of connection ribs are spaced apart along the circumference of the ash blocking end surface 3131, and an air inlet gap 3132 may be defined between two adjacent connection ribs. At this time, the fine ash may be bounced down when it impinges upward on the ash blocking end surface 3131, that is, the fine ash may be blocked by the ash blocking end surface 3131 outside the filter core 313, and clean air may enter the filter core 313 through the air inlet gap 3132 and be discharged toward the air outlet 3130. Therefore, the dust blocking effect is better, and the dust blocking end face 3131 is simple in structure, reliable in connection and convenient to process.

Of course, the present invention is not limited thereto, for example, in some other specific examples of the present invention, the ash blocking end surface 3131 may not be configured as a closed curved surface, and at this time, the ash blocking end surface 3131 and/or the end of the filter core 313 close to the ash blocking end surface 3131 may have a plurality of air inlet pores (the example is not shown in the drawing), that is, the plurality of air inlet pores may be provided only on the ash blocking end surface 3131, only on the end (e.g., the lower end in fig. 2) of the filter core 313 close to the ash blocking end surface 3131, or both on the ash blocking end surface 3131 and on the end of the filter core 313 close to the ash blocking end surface 3131, so that clean air may enter into the filter core 313 through the air inlet pores and be discharged toward the air outlet 3130. Therefore, the ash blocking end surface 3131 is simple in structure and convenient to process.

Alternatively, as shown in fig. 4, the filter core 313 and the primary cyclone 311 are integrated, and the secondary cyclone 312 and the primary cyclone 311 are detachably connected, that is, the filter core 313 and the primary cyclone 311 are integrated as a non-detachable component, while the secondary cyclone 312 and the primary cyclone 311 are two separate and detachable components, for example, the secondary cyclone 312 and the primary cyclone 311 can be connected by a snap fit or the like. Therefore, after the user takes out the cyclone separation device 3, the primary cyclone separator 311 and the secondary cyclone separator 312 can be separated for further cleaning, so that the cleaning effect of the handheld dust collector T is improved.

Thus, according to the dirt cup assembly T1 of the above-described embodiment of the present invention, the airflow generating device 2, the upstream filtering device 61, and the cyclonic separating apparatus 3 are arranged in this order from top to bottom, the upstream filtering device 61 is supported on the cyclonic separating apparatus 3, and the cyclonic separating apparatus 3 includes the primary cyclone 311 and the secondary cyclone 312 which are detachably connected (e.g., detachably connected by a snap-fit structure), wherein the primary cyclone 311 has the filter core 313 at the center thereof and is mounted on the bottom of the airflow generating device 2 by the mounting member 32.

Thus, when the user wishes to clean the upstream filtering means 61 and the cyclonic separating apparatus 3, the user can open the bottom of the cup housing 1, rotate the cyclonic separating apparatus 3 and remove it downwardly from the upstream filtering means 61, remove the upstream filtering means 61 from the cyclonic separating apparatus 3, remove the secondary cyclone 312 from the primary cyclone 311 and clean the removed components one by one. Thus, the dirt cup assembly T1 is simple in construction, compact, and easy to disassemble and clean. Alternatively, the upstream filtering device 61 may be a HEPA, i.e., a high efficiency air filter.

Finally, a description of a hand held vacuum cleaner according to some embodiments of the present invention will be given based on the duct layout of the dirt cup assembly T1 And (4) a device T.

In some embodiments of the present invention, referring to fig. 4 and 11, the top of the cup housing 1 is formed with the air outlet 140, for example, the air outlet 140 is formed on the cup top cover 14 described above. From this, inhale the inside dirt gas of cup shell 1 and be cleaned the back of filtering, clean air can directly be discharged through the air exit 140 at cup shell 1 top, and need not to turn to farther place and exhaust, thereby short exhaust route effectively, the energy consumption is reduced, and compare in carrying out carminative scheme through cup shell 1 bottom, because the air is discharged from the top of cup shell 1, thereby can avoid the problem that the exhaust air will treat that the dust on the clean surface blows off downwards, improve handheld dust catcher T's clean effect.

In conjunction with the above-mentioned embodiment, after the airflow enters the interior of the cup housing 1 through the air suction channel S1 in a tangential direction, centrifugal force may be generated to throw away the dust, the dust moves downward to the bottom of the cup along the inner wall of the cup housing 1, or the dust blocking rib 16 stops at one side of the dust blocking rib 16 and accumulates, and the filtered air may flow upward to the upstream filtering device 61 through the primary cyclone 311, the secondary cyclone 312 and the filter core 313, and upward to the airflow generating device 2 through the upstream filtering device 61, then upward to the downstream filtering device 62 through the airflow generating device 2, and finally discharged through the air outlet 140 at the top of the cup housing 1. Therefore, the handheld dust collector T provided by the embodiment of the invention has the advantages of simple structure, more miniaturized appearance, compact air duct layout, large dust capacity, good dust removal effect, convenience in cleaning and low energy consumption.

Preferably, referring to fig. 4 and 11, the downstream filtering device 62 is opposite the exhaust vent 140. Therefore, the air flow filtered by the downstream filtering device 62 can be directly discharged through the air outlet 140, thereby further shortening the air discharge distance and reducing the energy consumption. For example, in one embodiment of the present invention, the exhaust outlet 140 may be disposed around the downstream filtering device 62, so that the exhaust angle range can be widened while ensuring the shortest exhaust path, thereby effectively improving the exhaust efficiency and the overall energy efficiency of the handheld vacuum cleaner T.

In some embodiments of the present invention, the nozzle assembly T2 is transversely mounted on the cup housing 1 such that the axial direction X-X of the air suction passage S1 extends in a transverse direction, and the air outlet direction of the air outlet 140 is inclined upward relative to the axial direction of the air suction passage S1 in a projection to the vertical plane. Thus, it is explained that the blowing direction of the air discharge outlet 140 intersects the suction direction of the suction passage S1 at an angle such that, when the suction passage S1 is directed to the surface to be cleaned, the blowing direction of the air discharge outlet 140 does not face the surface to be cleaned, thereby preventing the problem that the air blown from the air discharge outlet 140 blows off the dust on the surface to be cleaned, thereby securing the cleaning effect.

In some embodiments of the present invention, referring to fig. 11 to 13, an angle θ between the axial direction X-X of the suction passage S1 and the blowing direction of the air outlet 140, projected to the horizontal plane, satisfies: theta 1 is not less than theta 2, wherein theta 1 is 20 degrees and theta 2 is 120 degrees. That is, the air outlet 140 may be formed within an angle region obtained by sequentially rotating the axis of the air suction passage S1 by 20 ° and 120 ° in the clockwise direction with the central axis of the cup housing 1 as the rotation center, and the air outlet 140 may be formed within an angle region obtained by sequentially rotating the axis of the air suction passage S1 by 20 ° and 120 ° in the counterclockwise direction.

From this, when the user uses handheld dust catcher T to clean, just to treating clean surface (for example ground or furniture) with suction channel S1, because there is the contained angle between air-out direction and suction channel S1, consequently the air-out direction can just not just to treating clean surface to avoid the air-out to blow off the problem that influences the dust absorption (avoid the raise dust) with the dust, ensure clean effect, the air-out direction can just to the user backward in addition, avoid the air-out to blow to cause the uncomfortable problem of user to the user.

In some embodiments of the invention, θ may also satisfy: theta is more than or equal to 30 degrees and less than or equal to 105 degrees. That is, the air outlet 140 may be formed within an angle region obtained by sequentially rotating the axis of the air suction passage S1 by 30 ° and 105 ° in the clockwise direction with the central axis of the cup housing 1 as the rotation center, and the air outlet 140 may be formed within an angle region obtained by sequentially rotating the axis of the air suction passage S1 by 30 ° and 105 ° in the counterclockwise direction. Thereby, the above advantageous effects can be more effectively exhibited.

In some specific examples of the present invention, referring to fig. 14 and 15, the air outlet 140 is provided with an air guiding surface 18 on the inner side thereof for adjusting the air outlet direction thereof, the air guiding surface 18 extends towards the direction close to the handle assembly T3 along the axial direction perpendicular to and away from the air suction channel S1, and the included angle between the extension line of the air guiding surface 18 and the connecting line of the central point of the air outlet 140 and the central point of the cup housing 1 projected to the horizontal plane is α: alpha is more than or equal to 10 degrees and less than or equal to 90 degrees, thus, the air outlet 140 can be simply and effectively ensured to be blown out towards the position far away from the air suction direction, thus, when a user uses the handheld dust collector T to clean, the air suction channel S1 is just opposite to the surface to be cleaned (such as the ground or furniture), because an included angle is formed between the air outlet direction and the air suction channel S1, the air outlet direction can not be just opposite to the surface to be cleaned, thereby the problem that the dust is blown away by the air outlet to influence the dust collection (the dust raising is avoided), the cleaning effect is ensured, the air outlet direction can not be opposite to the user backwards, and the problem that the user.

Preferably, referring to fig. 14 and 15, a width D between a front side wall (i.e., a side wall close to the suction nozzle assembly T2) of the air outlet 140 and a rear side wall (i.e., a side wall close to the handle assembly T3) of the air outlet 140 as projected to a horizontal plane is larger than a width D between an outer edge (i.e., an edge away from a central axis of the cup housing 1) of the air guide surface 18 and the rear side wall (i.e., a side wall close to the handle assembly T3) of the air outlet 140. Therefore, when the air flow is discharged from the inside of the cup housing 1 through the air guide surface 18 and the air outlet 140, the air flow firstly passes through the smaller flow width D and then passes through the larger flow width D, so that the exhaust resistance can be effectively reduced, the exhaust noise can be reduced, and the exhaust efficiency can be improved. Optionally, the width d between the outer edge rear sidewall of the wind guide surface 18 and the rear sidewall of the air outlet 140 satisfies: d is more than or equal to 2mm and less than or equal to 6 mm.

Preferably, the air outlet 140 has a flared shape along the air outlet direction of the air outlet 140. That is, after the air flow is discharged from the inside of the cup housing 1 through the air guide surface 18, the air flow can be gradually and dispersedly discharged from the air outlet 140, so that the exhaust resistance can be effectively reduced, the exhaust noise can be reduced, and the exhaust efficiency can be improved.

In some embodiments of the present invention, referring to fig. 12, the exhaust outlets 140 are plural, and the plural exhaust outlets 140 are axially symmetrically distributed about the axis X-X of the suction passage S1 as projected to a horizontal plane. That is, when the suction nozzle assembly T2 is disposed at the front side of the dust cup assembly T1 and the handle assembly T3 is disposed at the rear side of the dust cup assembly T1, the air outlets 140 are symmetrically disposed at the left and right sides of the top of the cup housing 1, respectively, so that the air outlets 140 are more skillfully and beautifully arranged and the air outlet effect is better.

In some embodiments of the present invention, referring to fig. 13, the air outlet 140 may be processed into a strip shape extending along the upper and lower directions, so as to increase the air outlet area and improve the air outlet efficiency, and the air outlet 140 is more convenient to process, thereby avoiding the problem that the air suction is affected or the user is uncomfortable due to the divergence of the air outlet angle. Of course, the present invention is not limited thereto, and in other embodiments of the present invention, the air outlet 140 may also be formed in a circular shape, an oval shape, a regular polygon shape, a diamond shape, etc. to better meet practical requirements.

In the following, the hand-held cleaner T according to some embodiments of the present invention will be described based on the relative arrangement of the nozzle assembly T2 and the dirt cup assembly T1.

In some embodiments of the invention, referring to figure 22, the airflow generating means 2 and cyclonic separating apparatus 3 are arranged in series along an axial direction X-X perpendicular to the suction passageway S1. That is, the line connecting the center of the airflow generating device 2 and the center of the cyclone separation device 3 is perpendicular to the axis of the suction passage S1 (it should be noted that "perpendicular" is herein understood in a broad sense, i.e., not necessarily perpendicular in an absolutely strict sense, such as having a small included angle). For example, when the cup housing 1 is vertically arranged, the suction nozzle assembly T2 is transversely installed on the cup housing 1, the cyclone device 3 and the airflow generating device 2 can be arranged up and down, in this case, the axis X-X of the suction passage S1 can be horizontally arranged, and the line connecting the center of the airflow generating device 2 and the center of the cyclone device 3 is vertically arranged. Therefore, the layout of the dust cup assembly T1 is more compact and small, and the dust cup assembly T is suitable for the miniaturization development trend of the handheld dust collector T.

In some embodiments of the present invention, referring to fig. 22, the cyclone device 3 and the airflow generating device 2 are arranged along the axial direction of the cup housing 1, for example, when the cup housing 1 is vertically arranged, the cyclone device 3 and the airflow generating device 2 are arranged up and down, or the airflow generating device 2 and the cyclone device 3 are arranged up and down. Therefore, the dust cup assembly T1 has more compact and small layout and smaller floor area, and is suitable for the miniaturization development trend of the handheld dust collector T.

In some embodiments of the present invention, referring to fig. 4, the negative pressure unit 21 may include a motor 211 and a wind wheel 212 connected to a rotating shaft of the motor 211, such that the motor 211 may drive the wind wheel 212 to rotate, and generate negative pressure to achieve suction. Therefore, the negative pressure unit 21 is simple in structure and convenient to process and install. Of course, the present invention is not limited to this, and the negative pressure unit 21 may be another unit having a driving part and an executing part, for example, the negative pressure unit 21 may be a vacuum pump having a motor. Referring now to fig. 16-19, a dirt cup assembly T1 in accordance with various embodiments of the present invention will be described based on several alternative mounting arrangements for motor 211.

In some specific examples of the present invention, referring to fig. 16 to 17, the motor 211 may be installed perpendicular to the suction passage S1. At this time, the axis X-X of the suction passage S1 intersects the rotation axis Z-Z of the motor 211 at right angles. Further, the motor 211 may be installed vertically and offset from the suction passage S1, for example, in one specific example of the invention, the cup housing 1 is cylindrical and the central axis Y-Y of the cup housing 1 is parallel to but not coincident with the rotational axis Z-Z of the motor 211, and the axis X-X of the suction passage S1 is intersecting with and perpendicular to the central axis Y-Y of the cup housing 1. Therefore, on the premise of ensuring the stable installation of the dust cup assembly T1, the motor 211 can also effectively avoid the internal components of the cup shell 1, and the assembly flexibility of the dust cup assembly T1 is improved. For example, alternatively, the cup housing 1 may be cylindrical and the central axis of the cup housing 1 is vertically arranged, the motor 211 is vertically arranged in the cup housing 1, and the suction nozzle assembly T2 is transversely installed on the cup housing 1, wherein the central axis Z-Z of the motor 211 is offset from the central axis Y-Y of the cup housing 1, and the central axis X-X of the suction channel S1 is perpendicular to and intersects the central axis Y-Y of the cup housing 1. Thus, installation and assembly is facilitated, and the dirt cup assembly T1 has a more stable center of gravity.

In some specific examples of the present invention, referring to fig. 18, the motor 211 may be installed obliquely to the suction passage S1. At this time, the axis X-X of the suction passage S1 intersects the rotation axis Z-Z of the motor 211 at an acute angle. Therefore, the motor 211 can effectively avoid the internal components of the cup shell 1, and the assembly flexibility of the dust cup assembly T1 is improved. For example, the cup housing 1 may be cylindrical and the central axis Y-Y of the cup housing 1 is vertically disposed, the motor 211 is obliquely disposed in the cup housing 1, and the suction nozzle assembly T2 is transversely mounted on the cup housing 1. Thus, it is convenient to manufacture, install and assemble, and the dirt cup assembly T1 has a more stable center of gravity. Preferably, the axis X-X of the suction passage S1 intersects the rotation axis Z-Z of the motor 211 at an acute angle γ satisfying: gamma is more than or equal to 20 degrees and less than or equal to 70 degrees. Therefore, the compact and small structure of the dust cup component T1 can be ensured, and the installation stability of the dust cup component T1 can be improved.

In some specific examples of the present invention, referring to fig. 19, the motor 211 may be installed in parallel or coaxial with the suction passage S1. At this time, the axis X-X of the suction passage S1 is parallel to or coincides with the rotation axis Z-Z of the motor 211. Therefore, the height of the dust cup assembly T1 can be lower, the gravity center of the whole machine is more stable, the motor 211 can also effectively avoid the internal parts of the cup shell 1, and the assembly flexibility of the dust cup assembly T1 is improved. For example, the cup housing 1 may be cylindrical and the central axis Y-Y of the cup housing 1 is vertically arranged, in this case, the motor 211 is horizontally arranged in the cup housing 1, and the suction nozzle assembly T2 is horizontally arranged on the cup housing 1. Thus, it is convenient to manufacture, install and assemble, and the dirt cup assembly T1 has a more stable center of gravity. Preferably, the axis X-X of the suction passage S1 is parallel to and below the axis of rotation Z-Z of the motor 211. Therefore, the compact and small structure of the dust cup component T1 can be ensured, and the installation stability of the dust cup component T1 can be improved.

In some embodiments of the present invention, referring to fig. 4 and 20, the airflow generating device 2 includes a negative pressure unit 21 and a hood 22 covering the negative pressure unit 21, an axis X-X of the suction passage S1 extends horizontally and is located below a top end of the negative pressure unit 21, and a vertical distance L between the axis X-X of the suction passage S1 and the top end of the negative pressure unit 21 satisfies L ≧ 0.2H, where H is a height of the negative pressure unit 21 in a vertical direction. That is, a reference line L1a is drawn at a distance of 0.2H from the tip of the vacuum unit 21 below the vacuum unit 21, and the axis of the suction passage S1 is located below the reference line L1 a. Therefore, the arrangement position of the suction nozzle component T2 is ingenious, the problem that the whole handheld dust collector T is toppled over can be effectively avoided, and the placement stability of the handheld dust collector T is improved. Moreover, when the air outlet 140 is arranged at the top of the cup shell 1, L is more than or equal to 0.2H, so that the problem that the air outlet direction of the air outlet 140 affects the dust collection of the air suction channel S1 can be effectively avoided, and the dust collection effect is improved.

Further, in some embodiments of the present invention, the vertical distance L between the axis of the suction channel S1 and the top end of the vacuum set 21 further satisfies: l is more than or equal to 0.2H and less than or equal to 1.2H. That is, the reference line L2a is drawn at a distance of 1.2H from the tip of the vacuum unit 21 below the vacuum unit 21, and the axis of the suction passage S1 is located below the reference line L1a and above the reference line L2 a. Therefore, the problem that the whole handheld dust collector T is toppled over can be further avoided, the placing stability of the handheld dust collector T is improved, the problem that the air outlet direction of the air outlet 140 affects the dust collection of the air suction channel S1 can be effectively avoided, and the dust collection effect is improved.

In some embodiments of the present invention, referring to FIGS. 4 and 21, an axis X-X of the suction passage S1 extends in a horizontal direction and is located below the top end of the cup housing 1, and a vertical distance L between the axis of the suction passage S1 and the top end of the cup housing 1 satisfies 0.2 S.ltoreq.L.ltoreq.0.8S, where S is a height of the cup housing 1 in a vertical direction. That is, the reference line L1b is drawn at a distance of 0.2S from the top end of the cup housing 1 below the cup housing 1, and the reference line L2b is drawn at a distance of 0.8S from the top end of the cup housing 1 below the cup housing 1, and the axis of the suction passage S1 is located below the reference line L1b and above the reference line L2 b. Therefore, the arrangement position of the suction nozzle component T2 is ingenious, the problem that the whole handheld dust collector T is toppled over can be effectively avoided, and the placement stability of the handheld dust collector T is improved. Moreover, when the air outlet 140 is arranged at the top of the cup shell 1, L is more than or equal to 0.2S and less than or equal to 0.8S, so that the problem that the air outlet direction of the air outlet 140 affects the dust collection of the air suction channel S1 can be effectively avoided, and the dust collection effect is improved.

Here, it should be noted that, in some of the above embodiments describing the installation height of the suction nozzle assembly T2, the vacuum unit 21 may include the motor 211 and the wind wheel 212 connected to the motor 211, and the rotation axis of the motor 211 may be vertically, horizontally, or obliquely arranged, that is, the included angle γ between the central axis of the motor 211 and the axis of the suction channel S1 satisfies: gamma is more than or equal to 0 degree and less than or equal to 90 degrees, thereby being capable of adapting to various actual requirements.

Preferably, the included angle γ between the axis of the suction passage S1 and the rotation axis of the motor 211 satisfies: gamma is more than or equal to 30 degrees and less than or equal to 90 degrees, therefore, the dust cup component T1 has more compact and small layout and better placement stability. Further, the wind wheel 212 may be connected to the bottom of the motor 211, so that the dust collecting effect of the airflow generating device 2 is better, and the installation and arrangement are more convenient, so that the layout of the dust cup assembly T1 is more compact and smaller. Preferably, the axis of the suction passage S1 intersects the rotation axis of the motor 211. That is, the axis X-X of the suction passage S1 and the rotation axis Z-Z of the motor 211 may be in the same plane, so that the placement stability of the dirt cup assembly T1 may be further improved.

In some embodiments of the present invention, referring to fig. 20 and 21, a suction nozzle assembly T2 may be removably connected to the cup housing 1. Thus, when it is necessary to adjust the mounting position of the nozzle assembly T2 or perform a related operation on the nozzle assembly T2, the user can detach the nozzle assembly T2 from the cup housing 1 and perform a related process. Therefore, the method is convenient for users to use and can be automatically processed according to needs. For example, the suction nozzle assembly T2 may be detachably connected to the cup housing 1 by a snap structure, a screw structure, or the like.

A hand-held vacuum cleaner T in accordance with certain embodiments of the invention will now be described based on the relative arrangement of the handle assembly T3 and dirt cup assembly T1, as well as the structural features of the handle assembly T3.

In some embodiments of the present invention, referring to FIG. 22, a handle assembly T3 is removably attached to the cup housing 1. Therefore, when the installation position of the handle assembly T3 needs to be adjusted or the relevant operation is carried out on the handle assembly T3, the user can detach the handle assembly T3 from the cup housing 1 for relevant processing. Therefore, the method is convenient for users to use and can be automatically processed according to needs. For example, the handle assembly T3 may be removably connected to the cup housing 1 by a snap-fit arrangement, a threaded arrangement, or the like.

In some embodiments of the present invention, referring to FIG. 22, the handle assembly T3 and the nozzle assembly T2 are located on either side of the dirt cup assembly T1 along the axial direction X-X of the suction channel S1. That is, the nozzle assembly T2 at the front of the dirt cup assembly T1 can perform a dust extraction operation when the user holds the handle assembly T3 at the rear of the dirt cup assembly T1. Therefore, the operation of the user is convenient.

In some embodiments of the present invention, referring to fig. 22, when the airflow generating device 2 is disposed inside the cup housing 1, rather than inside the handle assembly T3, the bottom surface of the cup housing 1 is lower than the bottom surface of the handle assembly T3 to act as a separate support surface for the hand-held cleaner T when placed, i.e., when the hand-held cleaner T is placed on a horizontal surface, no portion of the dirt cup assembly T1 other than the bottom surface is in contact with the contact surface, i.e., the portion of the dirt cup assembly T1 other than the bottom surface is above the contact surface. Thus, since the heavier airflow generating device 2 (particularly, the driving part such as the motor 211 in the airflow generating device 2) is not disposed in the handle, the handle assembly T3 is lighter than the dust cup assembly T1, and can be supported independently by the dust cup assembly T1, and the entire hand-held vacuum cleaner T does not have the problem of toppling. In addition, because the handle assembly T3 is lifted off the ground, the wear problem of the handle assembly T3 is reduced, and the heat dissipation of the handle assembly T3 (e.g., from the power supply 5 as described below) is increased, which facilitates cooling of the hand-held cleaner T.

Alternatively, referring to FIG. 22, the bottom surface of the handle assembly T3 is formed as a gradually upwardly extending ramp surface along the axis X-X of the suction passage S1 in a direction away from the dirt cup assembly T1 and toward the handle assembly T3. For example, referring to fig. 22, the bottom surface of the handle assembly T3 is formed as an upwardly inclined slope in the front-to-rear direction. That is, the distance between the bottom surface of the handle assembly T3 and the placement surface gradually increases in the front-to-rear direction. Therefore, on the premise that the handheld dust collector T cannot topple over, the abrasion problem of the handle assembly T3 can be further reduced, and the heat dissipation effect of the handle assembly T3 can be further improved.

Alternatively, referring to FIG. 22, the fall between the bottom surface of the cup housing 1 and the bottom surface of the handle assembly T3 may be 0.5mm to 1mm, that is, the maximum vertical distance between the bottom surface of the cup housing 1 and the bottom surface of the handle assembly T3 may be 1mm and the minimum vertical distance may be 0.5 mm. Therefore, on the premise that the problem that the whole handheld dust collector T cannot topple over is ensured, the abrasion problem of the handle assembly T3 can be further reduced, and the heat dissipation effect of the handle assembly T3 can be further improved.

Alternatively, referring to fig. 22, the bottom surface of the cup housing 1 is a flat surface. Therefore, the handheld dust collector T can be placed on a horizontal plane more stably, the problem that the whole machine is toppled is further avoided, and the cup shell 1 is more convenient to process. Or alternatively, the bottom surface of the cup housing 1 comprises a plurality of supporting protrusions (the example is not shown in the figure) with the base surface arranged at the bottom of the base surface, so that the friction force of the bottom surface of the cup housing 1 can be increased, the handheld dust collector T can be placed on a horizontal plane more stably, and the problem that the whole machine is toppled is further avoided. Or alternatively, the bottom surface of the cup housing 1 comprises a base surface and an anti-slip layer (such as a rubber surface) arranged at the bottom of the base surface (the example is not shown), so that the friction force of the bottom surface of the cup housing 1 can be increased, the handheld dust collector T can be placed on a horizontal plane more stably, the problem of the whole machine falling is further avoided, and the abrasion of the bottom surface of the cup housing 1 can be reduced.

In some embodiments of the invention and referring to fig. 22, the handle assembly T3 includes a handle 4 for mounting with the cup housing 1 and a power source 5 for supplying power to the air flow generating device 2, optionally, the power source 5 is located at a lower portion of the handle assembly T3 and a bottom surface of the power source 5 forms at least a portion of a bottom surface of the handle assembly T3 and the bottom surface of the power source 5 is higher than the bottom surface of the cup housing 1. Therefore, when the handheld dust collector T is placed on a horizontal plane, the bottom surface of the power supply 5 can be lifted off the ground, so that the abrasion of the bottom surface of the power supply 5 can be reduced, the heat dissipation and cooling effects of the power supply 5 can be improved, and the service life of the whole handheld dust collector T is prolonged.

That is to say, can make the bottom surface of power 5 and the face of placing spaced apart the setting to increased the heat radiating area of power 5, improved the radiating effect, further shortened the cooling time of power 5, like this, when the user is finishing using handheld dust catcher T and prevent handheld dust catcher T on the face of placing, can make power 5 cool off rapidly, and can reduce the wearing and tearing of power 5 bottom surface, prevent that the liquid on the face of placing such as water from getting into power 5 and causing the damage to power 5, prolonged the life of power 5, the reliability of handheld dust catcher T has been improved.

In some embodiments of the invention, referring to fig. 22-24, the handle assembly T3 is mounted on the cup housing 1, the handle assembly T3 includes a grip 41 for holding, that is, the user can lift the hand cleaner T by holding the grip 41, for example, when the handle assembly T3 includes the handle 4 and the power source 5 described above, the grip 41 can be formed on the handle 4. Preferably, the included angle σ between the center line of the grip portion 41 and the central axis of the cup housing 1 satisfies: sigma is more than or equal to 0 degree and less than or equal to 60 degrees. Therefore, on the premise of ensuring that the integral structure of the handheld dust collector T is small and compact, a user can hold the handheld dust collector T more easily and labor-saving.

In some embodiments of the present invention, referring to fig. 22-24, the handle assembly T3 is connected to the cup housing 1 via an adjustment mechanism such that the angle σ between the centerline of the grip portion 41 and the central axis of the cup housing 1 is adjustable. That is to say, the user can adjust the inclination angle that changes handle component T3 by oneself as required to adapt to different users' different use habits, accord with humanized design more. Here, it is understood that the adjusting mechanism may be various, for example, a large and small gear engaging mechanism, wherein the handle assembly T3 may be connected with the small gear, the large gear may be provided on the cup housing 1, and when the small gear rolls in mesh with the large gear, the inclination angle of the handle assembly T3 with respect to the cup housing 1 may be changed, thereby achieving the adjustment of the handle assembly T3.

In some embodiments of the present invention, referring to FIG. 22, when the handle assembly T3 includes the power source 5 and the grip 4 described above, the power source 5 may be connected to the grip 4, that is, the power source 5 may be mounted on the grip 4, thereby simplifying the structure of the handle assembly T3. Further, the power source 5 may be detachably connected to the handle 4 such that the power source 5 is removable from the handle 4, thereby facilitating the user's handling of the power source 5, for example, when the power source 5 needs to be charged, repaired or replaced, the user may remove the power source 5 from the handle 4 for the relevant operation.

Preferably, the handle 4 and the power source 5 are slidably engaged through a guide assembly, the handle 4 and the power source 5 are locked through a locking assembly 52 and the guide assembly, and the locking assembly 52 is unlocked through a quick release button 53. That is, the power source 5 can be moved in a sliding manner relative to the handle 4 by providing the guide assembly, the locking assembly 52 can lock the relative positions of the power source 5 and the handle 4, and the quick release button 53 can unlock the locking assembly 52, so that the power source 5 can be detached from the handle 4. Preferably, the guiding assembly and the locking assembly 52 are both of a hidden structure, that is, when the power source 5 and the handle 4 are assembled in place, the guiding assembly and the locking assembly 52 are hidden inside the handheld vacuum cleaner T and are invisible to a user, so that the overall aesthetic appearance of the handheld vacuum cleaner T can be improved, and the guiding assembly and the locking assembly 52 are not easily damaged.

For example, referring to fig. 22, 25-29, the power source 5 is disposed below the handle 4, and the power source 5 is slidably fitted to the handle 4 in the front-rear direction through the guide assembly, that is, the power source 5 can be easily mounted on the handle 4 by moving the power source 5 forward in the front-rear direction, and the power source 5 can be easily detached from the handle 4 by moving the power source 5 backward in the front-rear direction. Specifically, when the power supply 5 is assembled, the power supply 5 can be slid forward, so that the power supply 5 is fitted on the handle 4 through the guide assembly, and then the power supply 5 is locked on the handle 4 through the limit of the guide assembly and the locking of the locking assembly 52, so that the position of the power supply 5 is stable, and the power supply 5 can stably supply power to the airflow generating device 2; when the power supply 5 is detached, the quick-release button 53 can be pressed to unlock the locking assembly 52, and then the power supply 5 is slid backwards through the guide assembly, so that the power supply 5 is detached from the handle 4. Therefore, the structure is simple, and the disassembly and the assembly are convenient.

Optionally, the quick release button 53 is disposed on the cup shell 1 and/or the handle 4, that is, the quick release button 53 may be disposed only on the cup shell 1, the quick release button 53 may also be disposed only on the handle 4, and the cup shell 1 and the handle 4 may also be respectively disposed with the quick release button 53, so as to achieve flexible setting of the quick release button 53, and facilitate operation by a user.

Optionally, the quick release button 53 is an electronic non-push button, that is, the quick release button 53 is connected to the locking assembly 52 through an electronic circuit, and at this time, the user can trigger the locking assembly 52 to unlock by touching the quick release button 53, so that the grade of the handheld vacuum cleaner T can be improved. Or alternatively, the quick release button 53 is a mechanically-depressible button, that is, the quick release button 53 is connected to the locking assembly 52 through a mechanical structure, and at this time, the user can trigger the locking assembly 52 to unlock by touching and depressing the quick release button 53, so that the user can be given a good tactile experience.

In some specific examples of the present invention, the guiding direction of the guiding assembly, the locking and releasing direction of the locking assembly 52, and the pressing direction of the quick release button 53 are perpendicular. That is, the guiding direction of the guiding assembly is perpendicular to the locking and releasing direction of the locking assembly 52, the guiding direction of the guiding assembly is also perpendicular to the pressing direction of the quick release button 53, and the locking and releasing direction of the locking assembly 52 is also perpendicular to the pressing direction of the quick release button 53. Therefore, the layout of each component is simple and clear, mutual interference is not easy to occur, and the action reliability is high.

The suction nozzle assembly T2, the dirt cup assembly T1 and the handle assembly T3 are arranged in sequence from front to back, with the pressing direction being the left-right direction, one of the guiding direction and the locking and unlocking direction being the front-back direction, and the other of the guiding direction and the locking and unlocking direction being the up-down direction. For example, in the example shown in fig. 22, 25, and 26, when the guiding direction is the front-rear direction, the lock releasing direction is the up-down direction, and the pressing direction is the left-right direction, the power supply 5 may be mounted in the front-rear direction, and the unlocking operation may be performed in the left-right direction; for example, in another example (not shown), when the guiding direction is the up-down direction, the lock releasing direction is the front-back direction, and the pressing direction is the left-right direction, the power supply 5 may be mounted in the up-down direction, and the unlocking operation may be performed in the front-back direction. Therefore, the operation of a user is facilitated, and the power supply 5 is more convenient to disassemble and assemble.

For example, in the example shown in fig. 26, two quick release buttons 53 are provided, and the two quick release buttons 53 are respectively exposed on the left and right side walls of the power supply 5. Thus, the user can unlock the lock assembly 52 by pressing the quick release button 53 with two fingers of one hand in a direction toward each other. Of course, the present invention is not limited thereto, and the quick release button 53 may be only one and provided on the left or right side wall of the power supply 5.

In some embodiments of the present invention, the handheld vacuum cleaner T further includes a button return elastic member 531, and the button return elastic member 531 cooperates with the quick release button 53 to normally push the quick release button 53 to return, so that the assembly steps can be simplified, a user can more easily complete the assembly of the power source 5 and the handle 4, and the connection reliability of the power source 5 and the handle 4 is improved.

As shown in fig. 29, the quick release button 53 has a pressing surface adapted to be exposed outside the power source 5 for a user's pressing operation. The button return spring 531 may be provided on a side of the quick release button 53 away from the pressing surface (i.e., a side closer to the center of the power source 5). When the quick release button 53 is pressed, the button return elastic member 531 is in a compressed energy storage state, and when the quick release button 53 is released, the button return elastic member 531 pushes the quick release button 53 outward to return the quick release button 53, so that the user can press the quick release button 53 next time. Alternatively, the button return elastic member 531 may be a spring, but is not limited thereto.

In some embodiments of the present invention, locking assembly 52 comprises: a lock pin movably provided on the power source 5 and pushing the normally locking handle 4 by the lock pin return elastic member 522, and a lock pin return elastic member 522 having a guide slope adapted to cooperate with the quick release button 53, the guide slope being configured to drive the lock pin interpretation handle 4 when the quick release button 53 is pressed. Therefore, the locking assembly 52 has a simple structure, and is convenient and reliable to unlock and lock.

Specifically, referring to fig. 29, the latch includes a latch body 521 and a guide portion 523, and the guide portion 523 is formed at one end of the latch body 521 (e.g., a lower end of the latch body 521 in fig. 29) far from the handle 4, and extends obliquely from the one end of the latch body 521 toward a direction close to the quick release button 53 to form a guide slope. When the quick release button 53 is pressed, the quick release button 53 can slide along the guiding slope, so that the lock pin moves towards a direction (e.g. downward) away from the handle 4, thereby unlocking the handle 4, and at this time, the lock pin return elastic member 522 and the button quick release return elastic member 531 are both in a compressed energy storage state. When the quick release button 53 is released, the quick release button 53 is reset by the urging of the button return elastic member 531, and the lock pin is moved in a direction (e.g., upward) toward the handle 4 by the urging of the lock pin return elastic member 522, locking the handle 4. Therefore, the locking and unlocking of the lock plug are convenient to realize, the power supply 5 is conveniently and reliably locked on the handle 4, the power supply 5 is conveniently detached, and the reliability and the assembly efficiency of the assembly of the power supply 5 and the handle 4 are improved.

In some embodiments of the invention, the guide assembly comprises: a rail groove 511 and a rail bar 512, the rail groove 511 being formed on one of the handle 4 and the power source 5, the rail bar 512 being provided on the other of the handle 4 and the power source 5 and slidably engaged with the rail groove 511. For example, referring to fig. 25 to 27, a rail groove 511 is formed on the handle 4, and a rail bar 512 is provided on the power supply 5. Specifically, the guide rail groove 511 and the guide rail bar 512 are two, two guide rail grooves 511 may be formed at the lower end of the handle 4 and spaced apart in the left-right direction, two guide rail bars 512 may be formed at the top of the power supply 5 and spaced apart in the left-right direction, and both the guide rail grooves 511 and the guide rail bars 512 extend in the front-rear direction. Thus, the power source 5 and the handle 4 may be slidably engaged by a built-in, hidden guide assembly.

Preferably, the lead-in end face of the guide groove 511 is larger than the groove tail end face of the guide groove 511, and/or the insertion end face of the guide rail bar 512 is smaller than the bar tail end face of the guide rail bar 512. Therefore, since the introduction end surface of the guide rail groove 511 is large or the insertion end surface of the guide rail bar 512 is small, the difficulty of insertion and fitting of the guide rail groove 511 and the guide rail bar 512 can be reduced, and the efficiency of insertion and fitting of the guide rail groove 511 and the guide rail bar 512 can be improved. That is, the guide rail groove 511 is conveniently inserted into the guide rail bar 512, so that one-time loading is realized, the assembly difficulty is reduced, and the assembly efficiency is improved. For example, the rail groove 511 may be formed as a tapered groove or a trumpet groove, etc.

Next, referring to fig. 25 to 29, an example of the attachment and detachment of the handle assembly T3 according to a specific embodiment of the present invention will be described.

The number of the quick release buttons 53 is two, the two quick release buttons 53 are respectively located on the left and right side walls of the power supply 5, the locking assembly 52 is formed on the power supply 5 and is movable in the up-down direction (i.e. the locking and releasing direction is the up-down direction), the guide rail 512 is formed on the top of the power supply 5 and extends along the front-back direction, the guide rail slot 511 is formed on the handle 4 and extends along the front-back direction (i.e. the guiding direction is the front-back direction), and the leading-in end face of the guide rail slot 511 is larger than the slot tail end.

When the power supply 5 is assembled, the power supply 5 can be slid forward, the guide rail 512 on the power supply 5 is inserted into the guide rail groove 511 on the handle 4, and the lock body 521 in the lock latch automatically locks the handle 4 under the action of the lock latch return elastic member 522. When the power supply 5 is disassembled, the quick release button 53 can be pressed first, the lock pin moves downwards through the cooperation of the quick release button 53 and the guide part 523, and then the power supply 5 is slid backwards to disassemble the power supply 5. After the quick release button 53 is released, the quick release button 53 rebounds to reset under the action of the button reset elastic member 531, and the lock pin moves upwards to reset under the action of the lock pin reset elastic member 522.

In some alternative embodiments of the invention, the hand-held cleaner T has a heat dissipation duct S2 therein for directing airflow outside the hand-held cleaner T to the power supply 5. Therefore, the power supply 5 can be effectively cooled, cooled and cooled, and the service life of the power supply 5 is prolonged.

In alternative embodiments of the invention, the hand-held cleaner T has a heat dissipation duct S2 therein for directing the air flow within the cup housing 1 to the power supply 5. Therefore, the power supply 5 can be effectively cooled, cooled and cooled, and the service life of the power supply 5 is prolonged. Alternatively, the inlet of the heat-dissipating air duct S2 communicates with the downstream of the cyclone separation device 3, that is, the heat-dissipating air duct S2 can guide the filtered clean air separated by the cyclone separation device 3 to the power supply 5 for cooling, thereby preventing the untreated dust and air from polluting the power supply 5. Or alternatively, the inlet of the heat dissipation air duct S2 may also be communicated to the upstream of the cyclone separation device 3, and at this time, the air flow sucked into the cup housing 1 through the air suction channel S1 and not processed by the cyclone separation device 3 may be led to the power supply 5 through the heat dissipation air duct S2, and the cooling effect on the power supply 5 is better due to the lower temperature of the air flow.

For example, in some embodiments of the invention, when the airflow generating device 2 is disposed downstream of the cyclone separation device 3, the inlet of the cooling air duct S2 may be communicated to the airflow generating device 2, thereby facilitating the processing and implementation of the inlet of the cooling air duct S2, and the airflow pressure is greater here to facilitate blowing to the power supply 5. For example, in the example shown in fig. 23, the airflow generating device 2 is provided above the cyclone device 3, the airflow entering from the air suction duct S1 is separated by the cyclone device 3 in advance, and then flows to the airflow generating device 2, and a part of the airflow is led to the power supply 5 through the heat radiating duct S2 while the airflow flows to the airflow generating device 2 or after the airflow flows into the airflow generating device 2.

Alternatively, when the airflow generating device 2 includes the negative pressure unit 21 and the hood 22 covering the negative pressure unit 21, the inlet of the heat dissipation air duct S2 may penetrate through the hood 22, thereby facilitating the processing of the inlet and achieving a good air suction effect of the heat dissipation air duct S2. Further, the negative pressure unit 21 includes a wind wheel 212 and a motor 211 connected to the wind wheel 212, and an inlet of the heat dissipation duct S2 is disposed adjacent to an air outlet of the wind wheel 212. Therefore, the inlet of the heat dissipation air duct S2 is convenient to process, the air flow pressure is large, blowing to the power supply 5 is convenient, the situation that the motor 211 heats the entering air flow and then sends the air flow into the heat dissipation air duct S2 can be avoided, the air flow in the heat dissipation air duct S2 can be kept at a low temperature, and the cooling effect of the air flow on the power supply 5 is improved.

In some embodiments of the present invention, referring to fig. 22, the outlet of the heat dissipation duct S2 is connected to the power supply 5. Therefore, air can be more directly supplied to the power supply 5, the cooling efficiency of the power supply 5 is improved, and the waste and the energy consumption are reduced. Alternatively, the power supply 5 includes a battery pack 501 (for example, the battery pack 501 may be a common battery pack 501 or a storage battery pack 501) and a battery case 502 covering the battery pack 501, and the outlet of the heat dissipation air duct S2 penetrates through the battery case 502. From this, can protect battery package 501 through battery case 502, and can directly blow to battery package 501 from the air current that heat dissipation wind channel S2 export flows, further improved the cooling effect to power 5, export convenient processing moreover and the air supply effect is better, more direct.

In some embodiments of the present invention, the handle 4 includes a handle housing 42 assembled to the cup housing 1 and an inner partition 43 provided in the handle housing 42, and at least one section of the heat dissipation duct S2 is formed between the inner partition 43 and the handle housing 42, whereby the heat dissipation duct S2 can be easily manufactured without occupying excessive space, and the overall size of the hand-held cleaner T can be reduced. Alternatively, the internal partition 43 may be removably attached to the handle housing 42, for example, the internal partition 43 may be attached to the handle housing 42 by a snap fit. Therefore, the position of the inner partition plate 43 can be flexibly adjusted according to the specific specification and model of the handheld dust collector T, the position of the inlet S21 of the heat dissipation air duct S2 is changed, and the heat dissipation air duct S2 can be cleaned by detaching the inner partition plate 43 and the handle shell 42, so that the dust and air can be better prevented from polluting the power supply 5.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A hand-held cleaner, comprising:

the dust cup assembly comprises a cup shell, and an airflow generating device and a cyclone separating device which are arranged in the cup shell, wherein the airflow generating device is arranged above the cyclone separating device and positioned at the downstream side of the cyclone separating device, an air outlet is formed in the top of the cup shell, and at least one part of the air outlet is opposite to the side wall of the airflow generating device;

a suction nozzle assembly mounted transversely on the cup housing and defining a suction passage;

a handle assembly mounted on the cup shell and configured to be held;

the downstream side of air flow generating device is equipped with low reaches filter equipment, air flow generating device includes that negative pressure unit and cover establish the outer aircraft bonnet of negative pressure unit, the aircraft bonnet is last to have a plurality of exhaust holes, low reaches filter equipment is annular and overcoat and is in order to encircle on the aircraft bonnet the exhaust hole, the exhaust hole encircles low reaches filter equipment arranges.

2. A hand-held cleaner according to claim 1, wherein upstream filtering means is provided between the airflow generating means and the cyclonic separating apparatus.

3. The hand-held cleaner according to claim 1 or 2, wherein an air outlet direction of the air outlet is inclined upward with respect to an axial direction of the suction passage.

4. The hand-held cleaner of claim 1, wherein the cyclonic separating apparatus comprises: the cyclone separator comprises a first-stage cyclone separator, a second-stage cyclone separator and a filter element, wherein the second-stage cyclone separator is arranged in the first-stage cyclone separator, the filter element is arranged in the second-stage cyclone separator, airflow enters the space between the cup shell and the first-stage cyclone separator through the suction channel in a tangential direction to perform primary cyclone separation, then enters the space between the second-stage cyclone separator and the filter element through the first-stage cyclone separator and the second-stage cyclone separator to perform secondary cyclone separation, and then flows to the airflow generating device through the filter element.

5. The hand-held cleaner of claim 1, wherein a dust barrier rib is provided on an inner wall surface of the cup housing.

6. The hand-held cleaner of claim 1, wherein the handle assembly comprises a handle for mounting with the cup housing and a power source connected to the handle for providing power to the airflow generating device, and wherein the hand-held cleaner has a heat dissipating air duct therein for directing airflow within the cup housing to the power source.

7. The hand-held cleaner of claim 6, wherein an inlet of the cooling air duct is connected to the airflow generating device and an outlet of the cooling air duct is connected to the power source.