CN111789527A

CN111789527A - Hand-held vacuum cleaner

Info

Publication number: CN111789527A
Application number: CN202010680593.6A
Authority: CN
Inventors: 罗林
Original assignee: Dongguan Zhimei Life Electronic Technology Co ltd
Current assignee: Dongguan Zhimei Life Electronic Technology Co ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2020-10-20

Abstract

The present invention provides a hand-held cleaner, comprising: a suction duct; a cyclone separator communicating with the suction duct to separate dirt or dust from the airflow; an airflow generator for generating an airflow flowing along the suction duct; a battery assembly for powering the airflow generator; an elongated handle for grasping by a user's hand, the elongated handle having an axis; wherein the center of gravity of the cyclone separator is located at the front end of the axis; the center of gravity of the battery assembly or the center of gravity of the airflow generator is located at the rear end of the axis. The invention can improve the comfort of the dust collector in use.

Description

Hand-held vacuum cleaner

Technical Field

The invention relates to a handheld dust collector.

Background

CN101489454A discloses a hand-held cleaning device comprising an elongated suction duct having a longitudinal axis, an airflow generator, cyclonic separating means, a power source, an elongated handle having an X-X axis and being transverse to the longitudinal axis of the suction duct at an angle in the range 80 ° to 90 °, the handle being between the airflow generator and the power source, and the centre of gravity of the airflow generator and the centre of gravity of the power source both being on the X-X axis, and the like.

CN103784081A discloses a hand-held cleaner, which comprises a suction duct with a longitudinal axis, an airflow generator assembly, a cyclone separator assembly, a power supply assembly, a handle, etc., wherein the airflow generator assembly and the cyclone separator assembly are arranged along a direction perpendicular to the longitudinal axis, the airflow generator assembly is positioned right above the cyclone separator assembly, the center of gravity of the whole is positioned at the front end of the handle, and the power supply assembly is arranged below the handle, and the center of gravity of the power supply assembly is positioned on the extension line of the handle.

CN109832997A discloses a hand-held type silence dust catcher, this dust catcher includes whirlwind subassembly, vacuum generator, handle components, battery package and connecting portion, and vacuum generator locates whirlwind subassembly directly over and the holistic focus of both is located the front end of handle, and the battery package is located handle components's top and its focus is located the extension line of handle, and connecting portion are located handle components's below, and connecting portion are equipped with the exhaust vent.

The gravity of the handheld dust collector is mainly embodied by the airflow generator, the cyclone separation device and the power supply, the three occupy most of the weight of the dust collector, and a user needs to overcome the gravity of the dust collector by force preferentially to pick up the dust collector when holding the handle.

In CN101489454A, since the center of gravity of the airflow generator and the center of gravity of the power supply are both on the X-X axis, when the user holds the handle with his hand, the gravity of the airflow generator and the power supply will not provide extra moment to the wrist, but the cyclone separation assembly will provide extra moment, so that the wrist of the user not only needs to overcome the gravity of the cleaner itself, but also needs to provide a wrist force to overcome the moment of the cyclone separation assembly, which is still tiring to use, and CN103784081A and CN109832997A are more problematic because the airflow generator assembly and the cyclone separation assembly provide extra moment at the same time.

Disclosure of Invention

In view of the above, there is a need for a handheld vacuum cleaner that reduces or avoids the presence of additional torque and improves the comfort of the vacuum cleaner during use.

The present invention provides a hand-held cleaner, comprising:

a suction duct;

a cyclone separator communicating with the suction duct to separate dirt or dust from the airflow;

an airflow generator for generating an airflow flowing along the suction duct;

a battery assembly for powering the airflow generator;

an elongated handle for grasping by a user's hand, the elongated handle having an axis; wherein the center of gravity of the cyclone separator is located at the front end of the axis;

wherein the center of gravity of the battery assembly or the center of gravity of the airflow generator is located at the rear end of the axis.

Further, the center of gravity of the battery assembly is located at the rear end of the axis, and the center of gravity of the airflow generator is located at the front end of the axis or the center of gravity of the airflow generator is located on the axis.

Further, the battery assembly and the airflow generator are located above the handle.

Further, the airflow generator is disposed between the cyclone separator and the battery assembly.

Furthermore, the handheld dust collector also comprises a rear filter element arranged at the rear end of the airflow generator.

Further, the center of gravity of the rear filter element is located on the axis or at the rear end of the axis.

According to the scheme, the gravity center of the battery pack or the gravity center of the airflow generator is arranged at the rear end of the axis of the slender handle, so that the moment generated by the gravity of the cyclone separator can be completely or partially offset, when a user grasps the handle, the moment to be overcome by the wrist is smaller or even does not need to be overcome, the wrist is not easy to fatigue, and the wrist is more comfortable.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

FIG. 2 is a cross-sectional view of one embodiment of the present invention.

Fig. 3 shows a battery and cartridge arrangement according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a housing according to an embodiment of the present invention.

The following detailed description will further illustrate the invention in conjunction with the above-described figures.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention. It is to be understood that the drawings are provided solely for the purposes of reference and illustration and are not intended as a definition of the limits of the invention. The connection relationships shown in the drawings are for clarity of description only and do not limit the manner of connection.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It should also be noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; either mechanically or electrically, and may be internal to both elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

It should be noted that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 and 2, a hand-held cleaner 100 includes a main body 10, the main body 10 including a front end portion 20 and a rear end portion 30. The front end part 20 comprises a cyclone separator 21 and a suction pipeline 22 which is arranged at the front end of the cyclone separator 21 and communicated with the cyclone separator, and the front end of the suction pipeline 22 is a suction inlet 221. The rear portion 30 includes a housing 31, and an airflow generator 32 and a battery assembly 33 disposed within the housing 31.

The housing 31 forms a space for mounting the airflow generator 32 and the battery assembly 33. The airflow generator 32 is close to the cyclone separator 21, the battery assembly 33 is used for providing electric energy required by the operation of the airflow generator 32, and the housing 31 is further formed with an airflow passage 314 and an exhaust port 313. When the airflow generator 32 is operated, the airflow channel 314 passes through the suction duct 22, the cyclone separator 21, the airflow generator 32 to the exhaust port 313 in sequence, and dirt or dust entrained in the air is separated in the cyclone separator 21.

The housing 31 is further formed with an elongate handle 34, the handle 34 extending generally up and down and having an axis X-X which is angled from the front to back axis, in particular the axis X-X is angled from the axis Y-Y of the suction conduit 22 by 80-90 ° and the upper end of the handle 34 is inclined forwardly. The handle 34 and the cyclone separator 21 have a space for accommodating fingers, a switch 341 is formed on the handle 34, the switch 341 is located at the space and close to the cyclone separator 21, and the switch 341 is used for controlling the connection between the airflow generator 32 and the battery assembly 33, such as the operation or non-operation of the airflow generator 32, the power and the like.

The housing 31 also includes an upper portion 311 located above the handle 34 and a lower portion 312 located below the handle 34. The upper portion 311 is substantially cylindrical and has a space for mounting the airflow generator 32 and the battery assembly 33, so that the airflow generator 32 and the battery assembly 33 are mounted above the handle 34, the battery assembly 33 is located at the front end of the airflow generator 32, and the front end of the upper portion 311 has a through hole for communicating with the cyclone separator 21.

The center of gravity of the cyclone 21 is located at the front end of the axis X-X, the center of gravity of the battery assembly 33 or the center of gravity of the airflow generator 32 is arranged to be located at the rear end of the axis X-X, and specifically, the entire battery assembly 33 or the entire airflow generator 32 may be arranged to be located at the rear end of the axis X-X, the center of gravity will be located farther rearward. In this embodiment, the center of gravity of the battery assembly 33 is disposed at the rear end of the axis X-X, and the center of gravity of the airflow generator 32 is disposed at the front end of the axis X-X, with the airflow generator 32 being closer to the cyclone 21. It will be appreciated that the centre of gravity of the battery assembly 33 and the centre of gravity of the airflow generator 32 may both be arranged to lie at the rear of the axis X-X, i.e. the centre of gravity of one of the battery assembly 33 and the airflow generator 32 is at the rear of the axis X-X, which will improve the comfort of the user when using the cleaner 100.

When the user grips the handle 34, the gripping position will form a fulcrum, the cyclone separator 21, being located at the front end of the axis X-X, will force the cleaner 100 to rotate in a downward direction about the fulcrum, while the centre of gravity of the battery assembly 33 or the centre of gravity of the airflow generator 32, being located at the rear end of the axis X-X, can fully or partially counteract the moment due to the weight of the cyclone separator 21, the moment that the user needs to overcome by the user's wrist when gripping the handle 34 is smaller or even not necessary to overcome the moment of the cyclone separator 21, improving the comfort of the user when using the cleaner 100, but only needs to overcome the weight of the cleaner 100 itself, which the user has to overcome.

In other embodiments, a space may be formed in the lower portion 312 to mount the airflow generator 32 and the battery assembly 33 such that the airflow generator 32 and the battery assembly 33 are mounted below the handle 34. By mounting the airflow generator 32 and the battery assembly 33 above the handle 34, the degree of curvature of the airflow passageway 314 is reduced, static pressure losses are avoided, the dusting performance of the cleaner 100 is improved, and the movement of the forearm of the user due to the rearward projection of the airflow generator 32 or the battery assembly 33 relative to the handle 34 is avoided, as compared to mounting below the handle 34.

The upper portion 311 is further formed with a space for installing the filter element 35, the filter element 35 is disposed at the rear end of the airflow generator 32, the filter element 35 can not only filter the air separated by the cyclone separator 21 again to improve the air purifying effect, but also the filter element 35 can play a certain sound insulation effect on the airflow generator 32, so as to reduce the noise of the vacuum cleaner 100 during operation.

The filter element 35 has a centre of gravity located on the axis X-X, which generates substantially no moment, and the filter element 35 has a low weight and can also be arranged at the front or rear end of the axis X-X, i.e. the position of the filter element 35 has a small influence on the counterweight.

As shown in fig. 3 and 4, the battery assembly 33 is provided with a first connection structure 331 and a second connection structure 332, the filter element 35 is provided with a third connection structure 351, a rear end of the upper portion 311 is an open surface 3111, and an inner side surface thereof is provided with a fourth connection structure 3112.

The detachable connection of the battery assembly 33 and the filter element 35 is achieved through the first connection structure 331 and the third connection structure 351. After the filter element 35 is mounted on the battery assembly 33, the filter element 35 is slid forward and into the housing 31 from the open face 3111, and then the battery assembly 33 is detachably connected to the housing 31 through the third connecting structure 351 and the fourth connecting structure 3112, so that the battery and the filter element 35 are fixed relative to the housing 31 at the same time.

The vent 313 is formed in the sidewall of the upper portion 311, and when the filter element 35 slides into the housing 31, the filter element 35 faces the vent 313. The filter insert 35 is substantially an annular structure, which comprises a frame 3501 and an annular filter cotton body 3502 supported and formed by the frame 3501, a sealing ring 3503 is connected to the frame 3501, and the sealing ring 3503 is located at the outer periphery of the filter insert 35, preferably near the airflow generator 32. When the filter element 35 is disposed in the housing 31, the sealing ring 3503 is in sealing contact with the inner wall of the housing 31, so as to prevent the gas from flowing from the gap between the filter element 35 and the housing 31 to the exhaust port 313 directly without being filtered by the filter element 35, and the sealing ring 3503 also has an effect of isolating the sound of the airflow generator 32, so as to further reduce the noise generated when the airflow generator 32 operates.

The battery module 33 includes a battery case 3301, and a battery pack and the like provided in the battery case 3301. The battery housing 3301 includes a first portion 3351 with a larger size and a shape adapted to the shape of the upper portion 311, and a second portion 3352 with a smaller size and a shape adapted to the inner cavity of the upper portion 311, during the insertion of the battery assembly 33 into the housing 31, the outer surface of the second portion 3352 slides almost in contact with the inner wall of the upper portion 311, when the third connecting structure 351 is connected to the fourth connecting structure 3112 after sliding forward to a certain distance, and the first portion 3351 abuts against the end surface of the upper portion 311, so that the first portion 3351 and the upper portion 311 form a housing structure with continuous exterior engagement.

In this embodiment, the first connection structure 331 and the third connection structure 351 are rotary-type snap-fit structures. It is understood that the first connecting structure 331 and the third connecting structure 351 may also adopt other detachable connecting structures such as a strong magnetic member.

Specifically, the first connecting structure 331 is a slot, the third connecting structure 351 is a hook, the slot 331 includes a slide-in slot 3311 and a stop slot 3312, forming a substantially L-shaped slot, the hook 351 includes a connecting portion 3521 and a stop portion 3522 bent from the connecting portion 3521 to one side, forming a substantially L-shaped hook, and the connecting portion 3521 is connected to the frame 3501. The hook 351 slides into the slide-in groove 3311 and rotates to engage the stopper 3522 with the stopper groove 3312, and the rotation direction thereof is around the front-rear axial direction, so that the filter element 35 can be taken out together when the battery module 33 is inserted forward or pulled out backward. In other embodiments, the first connecting structure 331 may be a hook, and the third connecting structure 351 may be a slot.

A clamping structure 3323 is disposed in the slot 331, and when the stopping portion 3522 rotates into the stopping groove 3312, the hook 351 contacts with the clamping structure 3323 to fix the hook 351 and the slot 331 after being clamped, and the clamping structure 3323 is preferably a protrusion. The hook 351 is slid into the slide-in groove 3311 and then rotated, and after the hook is rotated to a certain angle, the protrusion 3323 abuts against the inner surface of the hook 351, so that the friction force required by the hook 351 for the reverse rotation of the battery assembly 33 is improved, and the battery assembly 33 and the filter element 35 are stably clamped. The clamping structure 3323 is preferably disposed at the sliding-in groove 3311, so that the protrusion 3323 abuts against the inner surface of the connecting portion 3521, and the connecting portion 3521 has smaller deformation capability than the stopping portion 3522, so that the pressure between the connecting portion 3521 and the protrusion 3323 is higher, and the clamping is more stable.

The second connecting structure 332 is a locking member, the locking member 332 includes a locking plate 3321 and a restoring element (not shown), the locking plate 3321 is provided with a pressing portion 3322 and a locking portion 3323, the locking portion 3323 is used for being buckled with the upper portion 311, under the elastic action of the restoring element, the pressing portion 3322 is locked with the upper portion 311, and the pressing portion 3322 is pressed inwards to overcome the elastic force of the restoring element, so that the locking portion 3323 is unlocked with the upper portion 311. A slide groove 3113 is formed in the upper portion 311 to extend from the open surface 3111 to a front end, and the lock plate 3321 slides in the slide groove 3113 and is exposed to be pressed by a user.

Throughout the description and claims of this application, the words "comprise/comprises" and the words "have/includes" and variations of these are used to specify the presence of stated features, values, steps or components but do not preclude the presence or addition of one or more other features, values, steps, components or groups thereof.

Some features of the invention, which are, for clarity, described in the context of separate embodiments, may also be provided in combination in a single embodiment. Conversely, certain features of the invention, which are, for brevity, described in the context of a single embodiment, may also be provided separately or in any suitable combination in different embodiments.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A hand-held cleaner comprising:

a suction duct;

an airflow generator for generating an airflow flowing along the suction duct;

a battery assembly for powering the airflow generator;

2. The hand-held cleaner of claim 1, wherein a center of gravity of the battery assembly is located at a rear end of the axis, a center of gravity of the airflow generator is located at a front end of the axis, or a center of gravity of the airflow generator is located on the axis.

3. The hand-held cleaner of claim 2, wherein the battery assembly and the airflow generator are located above the handle.

4. The hand-held cleaner of claim 3, wherein the battery assembly is disposed at a rear end of the airflow generator.

5. The hand-held cleaner of claim 4, further comprising a rear filter element disposed between the airflow generator and the battery assembly.

6. A hand-held cleaner according to claim 5, wherein the centre of gravity of the rearward filter element is located on or at the rear end of the axis.