CN213488588U

CN213488588U - Handheld dust collector

Info

Publication number: CN213488588U
Application number: CN202021822759.5U
Authority: CN
Inventors: 尹伯翔; 周航标; 窦红润
Original assignee: Zhuichuang Technology Suzhou Co Ltd
Current assignee: Dreame Innovation Technology Suzhou Co Ltd
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2021-06-22
Anticipated expiration: 2030-08-27

Abstract

The application discloses handheld dust catcher includes: the shell comprises an upper shell and a lower shell detachably connected with the upper shell, a storage bin for containing chippings is formed in the lower shell, and a dust collection inlet for air flow to enter the storage bin is formed in the bottom of the lower shell; the power assembly is arranged in the shell and used for driving the impeller to rotate so as to generate suction airflow; go up the casing and offer the air outlet of intercommunication dust absorption entry, the air outlet is seted up on the roof of last casing, and the casing still forms the ascending air-out clearance of slope including setting up in the top cap of last casing top between the roof of top cap and last casing. The application provides a handheld dust catcher, the air outlet is seted up at the top, and the slope of air-out clearance is upwards, can reduce the risk of blowing away light article on the clean face, promotes user experience.

Description

Handheld dust collector

Technical Field

The application relates to the technical field of dust collectors, in particular to a handheld dust collector.

Background

In families and working lives, dust and debris cannot be prevented from accumulating on a table top or other table tops, and the table top dust collector needs to be cleaned at any time, so that the table top dust collector is widely required and applied.

Traditional desktop dust catcher, including the last casing of mutual lock and lower casing, lower casing sets up storage bin and dust absorption entry, and the air outlet generally sets up at last casing and casing lock position department down. However, the airflow flowing out of the air outlet is close to the table top and blows outwards in the circumferential direction of the handheld dust collector, so that light objects such as documents and the like placed on the table top are easily blown away, further arrangement is needed, and troubles are caused to users.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the technology, the application provides the handheld dust collector with the air outlet at the top.

In order to solve the technical problem, the technical scheme adopted by the application is as follows:

a hand-held vacuum cleaner comprising:

the shell comprises an upper shell and a lower shell detachably connected with the upper shell, a storage bin for containing chippings is formed in the lower shell, and a dust collection inlet for air flow to enter the storage bin is formed in the bottom of the lower shell;

the power assembly is arranged in the shell and used for driving the impeller to rotate so as to generate suction airflow;

the upper shell is provided with an air outlet communicated with the dust suction inlet, the air outlet is formed in the top wall of the upper shell, the shell further comprises a top cover arranged above the upper shell, and an air outlet gap which inclines upwards is formed between the top cover and the top wall of the upper shell.

In an embodiment of the application, the roof is by the edge to middle inwards sunken bowl shape gradually, the air outlet sets up in the bowl shape the bottom of roof.

In an embodiment of the present application, the air outlet is provided in a plurality of numbers, and is disposed at the bottom of the top wall in a substantially circumferential arrangement.

In an embodiment of this application, the top cap including be used for with the supporting part that the roof is connected, the roof is provided with and is used for the installation the mount pad of supporting part, the mount pad is located to be the circumference and arranges the centre of air outlet.

In an embodiment of the application, the top cap includes the portion of hiding that hides above the air outlet, the portion of hiding in the circumferential direction with the roof interval sets up to form and be roughly annular the air-out clearance.

In an embodiment of the application, the air conditioner further comprises a base for supporting the power assembly, the storage bin is surrounded by the lower end surface of the base and the lower shell together, the upper shell is covered on the base, the power assembly is located in an accommodating space surrounded by the upper shell and the base, and the air outlet is communicated with the accommodating space;

the base further comprises an opening used for communicating the storage bin with the accommodating space, the power assembly is arranged on an airflow circulation path between the opening and the air outlet, airflow flows into the storage bin from the dust suction inlet, enters the accommodating space through the opening, flows through the power assembly, and finally flows out from the air outlet.

In an embodiment of this application, still include set up in the filter of opening part, the filter shelters from the opening for will filter from the air that the dust absorption entry flows in, with the filtering foul.

In an embodiment of the application, the base includes the backup pad that is used for supporting power component, the backup pad top is supported power component, and the below is provided with the impeller, the backup pad with the clearance that the air current circulates has between the lateral wall of last casing.

In an embodiment of the application, the base further includes a wind guiding ring connected below the supporting plate, and the wind guiding ring has a wind guiding inclined surface disposed obliquely, and is configured to guide the airflow thrown radially outward by the impeller to the upper side of the gap, so as to flow toward the power assembly side.

In an embodiment of the application, the power assembly comprises a drive motor.

Compared with the prior art, the application has the beneficial effects that: the application provides a handheld dust catcher, it is through seting up the air outlet at the casing top, by forming the ascending air-out clearance of slope between the roof of top cap and last casing, reduces the risk of blowing away other light objects on the clean face, like file etc. promotes user experience.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Wherein:

FIG. 1 is a perspective view of a hand-held vacuum cleaner according to the present application;

FIG. 2 is a cross-sectional view of the hand-held cleaner shown in FIG. 1;

FIG. 3 is an exploded view of the hand-held cleaner of FIG. 1;

fig. 4 is a perspective view of the top cover of the hand-held cleaner of fig. 1.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "comprising" and "having," as well as any variations thereof, in this application are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

A hand-held cleaner 100, as shown in figures 1 to 3, comprises a housing, a power assembly and an impeller 60.

The handheld dust collector provided by the embodiment is used for absorbing dust, debris and the like on a table top, is small and portable, and therefore can be called as a table top dust collector. In one specific application scenario, the eraser is used for absorbing eraser scraps, pencil scraps and the like, and therefore, the eraser can also be used as stationery.

When the handheld dust collector is used for cleaning a table top or other table surfaces, air flow blown out from the air outlet of the handheld dust collector is difficult to avoid acting on articles placed on the table top or the table surfaces, and if the articles are light in weight, the documents are easily blown away due to too large air flow, so that unnecessary troubles are caused. Therefore, it is necessary to design the outlet structure of the handheld vacuum cleaner to solve the above problems.

Wherein, the casing is used for accommodating power component. Comprises an upper shell 12 and a lower shell 11, wherein a storage bin 111 for containing scraps is formed in the lower shell 11, and a dust suction inlet 110 for air flow to enter the storage bin 110 is formed at the bottom of the storage bin. The lower housing 11 is detachably connected to the upper housing 12 so that the lower housing 11 is detached to clean debris contained in the storage bin 111. It will be appreciated that the lower housing 11 and the upper housing 12 are not limited to a direct detachable connection, but that there may also be an intermediate element.

The power assembly is drivingly connected to the impeller 60 for driving rotation of the impeller 60 to create the suction airstream. The upper housing 12 includes a side wall 120 and a top wall 121 connected above the side wall 120. The top wall 121 of the upper housing 12 may be provided separately from the side wall 120, or may be integrally formed, which is not limited herein.

Further, the air outlet 1210 is opened on the top wall 121 of the upper housing 12, the housing further includes a top cover 14 disposed on the top of the upper housing 12, the top cover 14 shields the air outlet 1210, and an inclined upward air outlet gap is formed between the top cover 14 and the top wall 121 of the upper housing 12.

The air outlet gap is arranged obliquely upward, and can guide the airflow blown out by the air outlet 1210 to be blown out obliquely upward. On one hand, the risk that the blown air flow blows away the files on the cleaning surface can be reduced, on the other hand, the air flow is blown out in a non-direct mode, the phenomenon that concentrated air flow is formed in the direct mode is avoided, the strength of the air flow felt by the hand or the arm of a user when the hand or the arm of the user is located above the handheld dust collector is weakened, and user experience is good.

Furthermore, the top wall 121 is in a bowl shape gradually recessed from the edge to the middle, and the air outlet 1210 is disposed at the bottom of the bowl-shaped top wall 121. Specifically, the outer contour of the top wall 121 is circular, the circumferential edge of the top wall is fixedly connected with the side wall 120, the middle of the top wall 121 is recessed into the accommodating space, and the air outlet 1210 is arranged at the bottom of the recess. Since the air flow is from bottom to top, the air flow flows upwards from the bottom of the bowl-shaped top wall 121, and has a tendency to incline upwards under the guiding action of the top wall 121.

For more even air-out, weakening air-out air current intensity, the air-out clearance is roughly annular, and the air current flows from the bottom of roof 121 upwards, and the circulation cross sectional area in air-out clearance increases gradually, and so, air-out speed is showing and is reducing, and the air current intensity that can feel weakens greatly. Specifically, the top cover includes a covering portion 142 covering the air outlet 1210, a middle portion of the covering portion 142 is supported and connected to the top wall 120, and the covering portion 142 is spaced from the top wall 121 in the circumferential direction to form a substantially annular air outlet gap.

Annular air-out clearance blows off the air current dispersion from circumference, has weakened the speed that the air current blew off, has reduced the air current to placing the influence of other article on cleaning surface, has also weakened the user to the impression of air-out air current, promotes user experience.

Specifically, referring to fig. 3 and 4, the top cover 14 includes a supporting portion 141 for connecting with the top wall 121, and the supporting portion 141 is connected to a substantially middle position of the covering portion 142 of the top cover 14. The top wall 121 is provided with a mounting seat 1211 for mounting the supporting portion 141, and the mounting seat 1211 is disposed in the middle of the top wall 121. The supporting portion 141 is connected to the mounting seat 1211, the top cover 14 is supported above the top wall 121, and an annular air outlet gap is formed between the lower end surface of the top cover 14 and the upper end surface of the top wall 121. More specifically, the cover portion 142 is substantially circular, and the outer contour of the top wall 121 is also circular corresponding to the cover portion 142, and an annular airflow communication gap is defined therebetween.

Preferably, the air outlets 1210 are multiple and arranged at the bottom of the top wall 121 in a substantially circumferential arrangement, so that the air is discharged more uniformly in the circumferential direction. More preferably, the air outlets 1211 are evenly spaced around the mount 1211 at the bottom of the top wall 121, i.e., the mount 1211 is located at a middle position of the air outlet 1210.

When the airflow circulation path is not smooth or other faults cause the handheld dust collector to be in an abnormal working state, the handheld dust collector is reminded of a user whether the handheld dust collector works normally or not in real time. In one embodiment, an impeller 143 is also provided to visually reflect the flow rate of the exhaust. Specifically, please refer to fig. 4, the impeller 143 is disposed at the air outlet 1210 and formed on the top cover 14, the top cover 14 is rotatably connected to the top wall 121, and the space for disposing the impeller 143 is communicated with the accommodating space, so that the flowing air acts on the impeller 143, and drives the impeller 143 to rotate, thereby driving the top cover 14 to rotate, and the user can visually observe the rotation speed of the top cover 14, thereby determining whether the air output is in the normal range. Specifically, if the top cover 14 does not rotate or the rotating speed is low during the operation, it is determined that the airflow path is blocked or the power assembly is abnormally blocked, and the user stops working in time to perform maintenance.

In this embodiment, the hand-held cleaner further comprises a base 30 for supporting the power assembly. Specifically, the power assembly is supported on the base 30, the lower end surface of the base 30 and the lower housing 11 together enclose a storage bin 111, the upper housing 12 covers the base 30, and the power assembly is disposed in the accommodating space enclosed by the upper housing 12 and the base 30. Referring to fig. 2, the base 30 is used as a boundary, the upper portion of the base 30 is an accommodating space for accommodating the power assembly, and the lower portion is a storage bin 111 for storing chips. The expressions "upper" and "lower" are used herein for illustrative purposes only and should not be construed as limiting the present application.

The base 30 is provided with an opening 310 for communicating the storage bin 111 with the accommodating space, and the power assembly is disposed on the airflow path between the opening 310 and the air outlet 1210. Referring to the airflow flowing direction shown by the arrow in fig. 2, during the operation of the handheld vacuum cleaner 100, the impeller 60 is driven to rotate, and since the accommodating space and the storage bin 111 are communicated with each other through the opening 310 formed in the base 30, the impeller 60 rotates to form a negative pressure, and the airflow flows into the storage bin 111 from the dust suction inlet 110 below, enters the accommodating space through the opening 310, flows through the power assembly, and finally flows out from the air outlet 1210.

The power assembly is arranged on the airflow circulation path, and can dissipate heat by utilizing suction airflow generated by rotation of the impeller, so that the heat dissipation effect of the power assembly is improved, and the service life of the power assembly can be prolonged.

Further, the power assembly includes a drive motor 20, and the drive motor 20 drives the impeller 60 to rotate, thereby generating a suction airflow. The impeller 60 is embodied as a centrifugal impeller.

The power assembly also includes a battery 50 for powering the drive motor 20. The handheld vacuum cleaner 100 is powered by a battery, which ensures portability and flexibility of the handheld vacuum cleaner. Specifically, the battery may be a lithium battery, a nickel-chromium battery. Preferably a lithium battery.

Referring to fig. 2, the base 30 includes a support plate 32 for supporting the power assembly, the power assembly being supported above the support plate 32, and an impeller 60 being disposed below the support plate 32. In order to facilitate the air flow to the power unit side, a gap for the air flow to flow is provided between the support plate 32 and the side wall 120 of the upper case 12, and the air flow is thrown out by the impeller 60 and then flows upward from the gap between the support plate 32 and the side wall 120 to flow to the power unit side. Specifically, the support plate 32 is substantially circular, the side wall 120 is cylindrical with an inner diameter larger than that of the support plate 32, an annular gap is formed between the support plate 32 and the side wall 120, and the airflow is thrown out in the radial direction of the impeller 60 and flows upward through the annular gap.

In order to further improve the circulation efficiency of the air flow, reduce the air flow loss and ensure the heat dissipation effect. The base 30 further includes a wind guide ring 312 connected below the support plate 32 for guiding the air flow thrown outward by the impeller 60 toward the upper side of the gap. Specifically, the air guide ring 312 has an inclined air guide slope, the outer contour of the air guide ring 312 is substantially in the shape of an inverted circular truncated cone, and the air guide slope is substantially in the shape of a curved surface of the inverted circular truncated cone, so that the air flow is guided upward.

When the hand-held cleaner is in operation, the impeller 60 rotates to form a suction airflow which flows in from the suction inlet 110 and the opening 310 in sequence, and it can be understood that the open positions of the opening 310 and the suction inlet 110 determine an air inlet path of the airflow, and further determine air inlet efficiency. In the present embodiment, the opening 310 is opened just below the impeller 60 in order to ensure the air intake efficiency. Specifically, the base 30 further includes an air deflector 31 disposed below the impeller 60, and the opening 310 is opened in the middle of the air deflector 31 and is located substantially right below the impeller 60. Further, the suction inlet 110 is also located directly below the impeller 60, and preferably, the suction inlet 110 substantially coincides with the center of the impeller 60. In this way, the airflow passage in the intake path is concentrated near the rotation axis of the impeller, and the airflow loss is small.

To assist in positioning the power assembly, the hand-held cleaner 100 also includes a positioning plate 40 disposed above the power assembly. Specifically, the support plate 40 includes a limit groove for limiting the swing of the driving motor 20, and the limit groove covers the driving motor 20 and is capable of limiting the driving motor 20. The support plate 40 has a gap in the circumferential direction from the upper case 12 for the circulation of the air flow.

In this embodiment, the air inlet direction of the opening 310 is arranged at an angle to the axis of rotation of the impeller 60, so as to change the direction of the airflow, thereby facilitating separation of dirt entrained in the airflow from the airflow. Further, the projection of the opening 310 onto the plane of rotation of the impeller 60 is outside the projection of the suction inlet 110 onto the plane of rotation, so that dirt entrained in the airflow, after entering the suction inlet 110, will float to a position obliquely above the suction inlet 110 as the airflow moves towards the opening 310, and will fall under gravity to the storage bin, rather than falling directly above the suction inlet 110.

It can be understood that the dust and debris are carried by the airflow flowing in from the dust suction inlet 110, wherein the debris with smaller particles must cause the pollution of the power assembly if entering the accommodating space along with the airflow, and meanwhile, the debris can be discharged to the outside from the air outlet, so that the ambient air environment is polluted, and the user experience is reduced. In order to prevent dirt entrained in the airflow from entering the accommodating space and polluting the power module and the outside air, a filter 70 is disposed at the opening 310 to block the opening 310 and filter the dirt in the airflow flowing in from the dust inlet 110. Wherein, the filtering member 70 may be a sponge, a filter cotton, a filter net, etc.

Specifically, the air guiding plate 31 is recessed downward at the middle portion to form a mounting groove for mounting the filtering element 70, and the circumferential direction of the mounting groove is hollowed out to form the opening 310 for air to flow into. The bottom of mounting groove sets up the baffle, can block that elongated object stretches into and touches impeller 60, causes the harm to impeller 60, and on the other hand also can prevent that the finger from stretching into, avoids the impeller of high-speed rotation to cut the finger, causes the injury. Preferably, the projection of the baffle onto the plane of rotation of the impeller 60 covers the suction inlet 110.

After handheld dust catcher used a certain period, filtered 70 filter effect worsened, for the convenience of changing filtered piece, aviation baffle 31 and backup pad 32 detachable are connected, when needing to change filtered piece 70, dismantle casing 11 down, dismantle backup pad 32 and aviation baffle 31, after having changed filtered piece, again pack back in proper order.

To sum up, the top at last casing is seted up to the air outlet in the handheld dust catcher that this application provided, by forming the ascending air-out clearance of slope between the roof of top cap and last casing, can weaken the intensity that the air current blew off, reduces the risk of blowing away other light objects on the clean face, like file etc. promote user experience

The above description is only for the purpose of illustrating embodiments of the present invention and is not intended to limit the scope of the present invention, and all modifications, equivalents, and equivalent structures or equivalent processes that can be used directly or indirectly in other related fields of technology shall be encompassed by the present invention.

Claims

1. A hand-held cleaner, comprising:

2. The hand-held vacuum cleaner of claim 1, wherein the top wall is in the shape of a bowl gradually recessed inward from the edge toward the middle, and the air outlet is disposed at the bottom of the top wall in the shape of a bowl.

3. The hand-held cleaner of claim 2, wherein the plurality of outlets are disposed in a generally circumferential arrangement at a bottom of the top wall.

4. The hand-held cleaner of claim 3, wherein the top cover includes a support portion for connection with the top wall, the top wall being provided with a mounting seat for mounting the support portion, the mounting seat being located in the middle of the circumferentially arranged outlets.

5. The hand-held cleaner of claim 2, wherein the top cover includes a cover portion that covers over the outlet opening, the cover portion being spaced from the top wall in a circumferential direction to form the substantially annular outlet gap.

6. The handheld vacuum cleaner of claim 1, further comprising a base for supporting the power assembly, wherein the storage bin is enclosed by the lower end surface of the base and the lower housing together, the upper housing is covered on the base, the power assembly is located in an accommodating space enclosed by the upper housing and the base, and the air outlet is communicated with the accommodating space;

7. The hand-held cleaner of claim 6, further comprising a filter element disposed at the opening, the filter element covering the opening for filtering air flowing in from the dust inlet to remove dirt.

8. The hand-held cleaner of claim 6, wherein the base includes a support plate for supporting the power assembly, the support plate supporting the power assembly above and the impeller below, the support plate having a gap between the support plate and the sidewall of the upper housing through which the air flows.

9. The hand-held cleaner according to claim 8, wherein the base further comprises a wind guide ring connected below the support plate, the wind guide ring having a wind guide slope obliquely arranged to guide the airflow thrown radially outward by the impeller to the upper side of the gap to flow toward the power unit side.

10. The hand-held cleaner of claim 1, wherein the power assembly comprises a drive motor.