CN112603191B

CN112603191B - Hand-held vacuum cleaner

Info

Publication number: CN112603191B
Application number: CN202011398533.1A
Authority: CN
Inventors: 杨勇
Original assignee: Shenzhen 3irobotix Co Ltd
Current assignee: Shenzhen 3irobotix Co Ltd
Priority date: 2020-12-02
Filing date: 2020-12-02
Publication date: 2022-06-14
Anticipated expiration: 2040-12-02
Also published as: CN112603191A

Abstract

A hand-held vacuum cleaner comprising: a main housing; a handle connected to or integrally formed with the main housing, the handle having a gripping area for a user to grip; the fan assembly is used for driving airflow to generate negative pressure and arranged in the main shell; the battery pack is electrically connected with the fan assembly and used for providing electric energy for the operation of the fan assembly, an accommodating space is formed in the handle, at least part of the battery pack is arranged in the accommodating space, and at least part of the battery pack is positioned in the holding area; when the handheld dust collector is in a dust collection working state, the current output by the battery pack is more than or equal to 5A; the heat insulation layer is arranged on the circumferential direction of the battery pack and used for limiting heat conduction between the battery pack and the holding area. The application provides a handheld dust collector, the built-in handle of group battery, and adopt heavy current high power work, grip regional conduction to the handle through insulating layer restriction heat, guarantee under the condition of big dust absorption power that the user grips not scald one's hand.

Description

Hand-held vacuum cleaner

[ technical field ] A method for producing a semiconductor device

The invention relates to the field of dust collection equipment, in particular to a handheld dust collector.

[ background of the invention ]

The dust collector is increasingly popular with the majority of users as a cleaning household appliance, and is a handheld dust collector product, so that the dust collector is particularly popular with the users because the dust collector is powered by a battery and is not bound by a power line when in use. Along with the development of dust collector products, a plurality of light-weight products appear, wherein the dust collector products represented by the convenient suction are popular with a part of young and white collars due to low price, low weight and convenient use, and the battery pack is usually arranged in the handle, so that the gravity center of the whole machine can be firmly held in the hand, and the use is particularly convenient.

Although the portable suction type product is convenient to use, the portable suction type product basically abandons the performance of a plurality of dust collectors because the portable suction type product is only light, for example, the portable suction type product has very low suction power, mainly because the portable suction type product adopts a low-power motor, the weight of a battery can be smaller, and because the low-power motor is adopted, the current of the battery is smaller, the heat generation is not obvious, and the surface of a handle is not too hot. Therefore, the portable hand-held cleaner can be carried conveniently, and the dust suction capability is sacrificed. However, if the suction force is increased in order to improve the dust collection performance, the heat generated by the battery is increased, and the handle has obvious hand scalding feeling. However, the user's demands for the dust-collecting performance and portability of the vacuum cleaner are very urgent, and there is an urgent need for a hand-held vacuum cleaner which is portable and ensures the dust-collecting performance.

[ summary of the invention ]

The invention aims to provide a portable handheld dust collector, wherein a handle is arranged in a battery pack, so that the dust collection capacity is ensured, and the hand can not be scalded when being held.

The purpose of the invention is realized by the following technical scheme:

a hand-held vacuum cleaner comprising:

a main housing; a handle connected to or integrally formed with the main housing, the handle having a gripping area for a user to grip;

a fan assembly for driving an air flow to generate a negative pressure, the fan assembly disposed within the main housing;

the battery pack is electrically connected with the fan assembly and used for providing electric energy for the operation of the fan assembly, an accommodating space is formed in the handle, at least part of the battery pack is arranged in the accommodating space, and at least part of the battery pack is positioned in the holding area; when the handheld dust collector is in a dust collection working state, the current output outwards by the battery pack is more than or equal to 5A;

the heat insulation layer is arranged on the circumferential direction of the battery pack and used for limiting heat conduction between the battery pack and the holding area.

In one embodiment, the holding area has a container for accommodating the battery pack, and the thermal insulation layer is arranged around the battery pack along at least part of the inner wall of the container.

In one embodiment, the heat insulation layer is continuously covered around the circumference of the battery pack; or the heat insulation layer is provided with a break gap in the circumferential direction of the battery pack, and the width of the break gap is not more than 5 mm.

In one embodiment, the insulation layer covers more than 50% of the total area of the inner wall of the receptacle.

In one embodiment, the insulation layer covers more than 40% of the total area of the inner wall of the grip region.

In one embodiment, the thickness of the thermal insulation layer ranges from 0.1mm to 4 mm.

In one embodiment, the heat insulation layer is mica paper.

In one embodiment, the battery pack includes a plurality of battery cells, the battery cells are arranged in two rows along a central line direction of the handle, and two approximately symmetrical cavities are formed between an inner wall of the handle and an outer surface of the battery pack.

In one embodiment, the heat insulation layer is wrapped on the periphery of the battery pack in a close fit mode.

In one embodiment, the heat insulation layer is arranged close to the inner wall of the handle

Compared with the prior art, the invention has the following beneficial effects:

the application provides a handheld dust catcher, the built-in handle of group battery, and adopt heavy current high power work, grip regional conduction to the handle through insulating layer restriction heat, guarantee that the user grips not scalding the hand under the condition of carrying into dust absorption performance.

[ description of the drawings ]

Fig. 1 is a perspective view of a hand-held cleaner provided herein.

Fig. 2 is a sectional view schematically showing the hand-held cleaner shown in fig. 1.

[ detailed description ] embodiments

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying figures are described in detail below. 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.

Referring to fig. 1 to 2, a handheld vacuum cleaner according to an embodiment of the present application includes a main housing 10, a handle 12, a suction pipe 11, a dust cup 14, a fan assembly 20, and a battery pack 9.

The handle 12 takes the form of an elongate handgrip arranged so that a user grips the handle to operate the hand-held cleaner, with a gripping region for gripping by the user. The handle 12 has a centerline along which the handle 12 extends, the centerline being defined by the shape of the handle 12 and may be straight or have a curvature. The handle 12 is connected to the main housing 10, and may be fixed or movable, such as rotatable or detachable. Of course, the handle 12 and the main housing 10 may be integrally formed. In this embodiment, referring to fig. 1, the handle 12 is a straight handle and is fixedly connected to the rear of the main housing 10, that is, the handle 12 is positioned at the rear of the handheld cleaner, so that the main housing 10, the dust suction pipe 11 and the fan assembly 20 can be supported in front of a user, thereby facilitating the operation of the handheld cleaner.

A fan assembly 20 for driving the air flow to generate the negative pressure. The suction pipe 11 has a suction inlet 110, and suction enters the dirt cup 14 of the hand-held cleaner through the suction inlet 110. The fan assembly 20 is disposed within the main housing 10 and includes a motor and an impeller drivingly connected to the motor, and when the fan assembly 20 is operated, the motor drives the impeller to rotate and generate a negative pressure under which suction is drawn into the dirt cup 14 through the dirt suction inlet 110.

The battery pack 9 is used to power the fan assembly 20. The battery pack 9 includes a plurality of battery cells, and in order to reduce the weight of the handheld dust collector, the battery cells adopted in this embodiment are all lithium ion battery cells.

Referring to fig. 1, the handle 12 is a linear type handle, that is, the central line of the handle 12 is a straight line, the handle 12 is parallel to the axis of the fan assembly 20, and the handle 12, the main housing 10, the dirt cup 14 and the dust collection pipe 11 are sequentially arranged, specifically in a straight line, so that the handheld dust collector is slender and compact in size.

The hand-held cleaner further comprises a separation cone 40, the separation cone 40 being located at least partially within the dirt cup 14 for separating dirt from the airflow for temporary storage within the dirt cup 14. The separation cone 40 may be a multi-stage separation cone or a single-stage separation cone. The main housing 10 is provided with an air outlet 100, and the separated air flows out from the air outlet 100.

In order to reduce the pollution of the outflow air to the external environment, the handheld vacuum cleaner further comprises an air inlet assembly 30 and an air outlet assembly 50 for filtering the airflow. Wherein, air inlet assembly 30 is located the low reaches of separation awl 40 on the air current flow direction, and fan assembly 20's upper reaches filters most dust in the air current through the filtering action of air inlet assembly 30, can reduce the dust volume that gets into fan assembly 20 through the air current after the separation of separation awl 40, reduces the pollution to fan assembly 20. Air-out subassembly 50 sets up in the circumference of motor for carry out further filtration to the air current and purify, make the external air of discharge satisfy the cleanliness factor requirement, avoid causing the pollution to external environment. Specifically, the air inlet assembly 30 is a filter sponge, and the air outlet assembly 50 is an air outlet HEPA.

The dust suction pipe 11 can be connected with a dust suction working head which is used for contacting the cleaning surface so that dust enters the dust suction pipe 11 along with the dust suction working head. The dust-collecting working heads can be of various types to adapt to different working surfaces, and one of the dust-collecting working heads is connected to the dust-collecting inlet 110. The dust suction pipe 11 can also be fixedly connected with the dust suction working head, or the dust suction pipe 11 is directly constructed into a structure which is contacted with the cleaning surface for dust suction.

The hand-held cleaner also has a switch 13, which is configured here as an on and off switch, the switch 13 being disposed adjacent the handle 12, facilitating a user to operate the switch to turn the hand-held cleaner on or off while gripping the handle 12.

In order to ensure the portability of the handheld dust collector, the battery pack 9 is at least partially arranged in the handle 12, and the existing internal space of the handle 12 is used for accommodating the motor, so that the overall volume of the handheld dust collector can be reduced, and the handheld dust collector is smaller. Specifically, the handle 12 has an accommodating space therein, at least a part of the battery pack 9 is disposed in the accommodating space, and at least a part of the battery pack 9 is located in a grip region of the handle 12.

In order to ensure the dust collection capacity of the handheld dust collector, the embodiment adopts large current to work. When the hand-held cleaner is in a dust collection working state, the current output by the battery pack 9 is more than or equal to 5A. The working current higher than 5A is adopted, so that strong energy supply is provided for the handheld dust collector, larger suction force is generated, and the dust collection effect is better. In one embodiment, the current output by the battery pack 9 is in a range of 10A-30A, and the dust suction capacity is better.

However, the large current tends to increase heat generation of the battery pack 9, and if excessive heat is conducted to the handle 12, the handle 12 is easily overheated, and the user may feel hot. In this embodiment, a heat insulation layer 121 is further provided, which is positioned in the handle 12 and arranged in the circumferential direction of the battery pack 9, and is used for limiting heat conduction between the battery pack 9 and the holding area. Thus, at least part of heat transfer between the holding area and the battery pack 9 is separated by the heat insulation layer 121, temperature rise of the holding area can be inhibited, the handle is guaranteed not to be scalded even if the large current works for a long time, and user operation experience is improved.

Specifically, the holding area has a housing portion that houses the battery pack 9, and the heat insulating layer 121 is provided around the battery pack 9 along at least a part of an inner wall of the housing portion. In one embodiment, the thermal insulation layer 121 is wrapped around the battery pack 9 in a continuous circumferential covering manner. In another embodiment, the heat insulation layer 121 may also be configured to have a gap in the circumferential direction of the battery pack 9, and the gap facilitates the conduction of the heat portion of the battery pack 9 to the gap between the inner wall of the holding area and the battery pack 9, so as to reduce the heat accumulation of the battery pack 9, and at the same time, the material used for the heat insulation layer 121 may also be reduced, so as to reduce the cost. Through experiments, the width of the break gap is not more than 5mm, the influence on the temperature of a holding area is small, and scalding of hands cannot be caused.

The accommodating part of the holding area accommodates the battery pack 9, the holding area may also have a cavity, the battery pack 9 is not accommodated, in order to reduce the material used for the heat insulation layer 121 and ensure the heat insulation effect, the heat insulation layer 121 covers more than 50% of the total area of the inner wall of the accommodating part, the covering area has the heat insulation effect and cannot cause the temperature of the holding area to scald hands, the used material of the heat insulation layer 121 is also saved by the colleagues, and the adverse effect on the diameter of the handle is reduced.

In an implementation scenario, there is a bend or a special shape in the holding area, and the bent or special-shaped portion cannot accommodate the lower battery cell, but is still used for holding. Therefore, the holding area which does not contain the battery can be provided without the heat insulating layer, thereby saving the material of the heat insulating layer. The insulation layer 121 covers more than 40% of the total area of the inner wall of the grip area.

The handle 12 is used for a user to grip, and if the handle is too thick, the palm of the user cannot surround the handle for one circle, which makes the user to grip the handle with more effort, and in order to suppress the influence of the arrangement of the heat insulating layer 121 on the increase in the diameter of the handle 12. The thickness of the heat insulation layer is selected to be 0.1mm-4 mm. In one embodiment, the thickness is 1mm-3mm, and in another embodiment, the thickness is 0.5mm-2mm, and the thickness range not only can achieve a certain heat insulation effect, but also can avoid the influence on the holding comfort level caused by too thick handle due to too thick heat insulation layer.

In an embodiment, the heat insulation layer 121 is made of mica paper, and the mica paper has a better heat insulation effect for heat insulation layers with the same thickness, so that the influence of the heat insulation layer 121 on the increase of the diameter of the handle is further reduced. In another embodiment, the thermal insulation layer 121 may also be made of asbestos.

The arrangement of the battery pack 9 is also a major factor in determining the diameter of the handle 12. In this embodiment, the battery pack 9 includes a plurality of battery cells, specifically, 6 battery cells are taken as an example for illustration, please refer to fig. 2, along the central line direction of the handle 12, the 6 battery cells are arranged in two rows, each row has 3 battery cells connected to each other at the head, the two rows of battery cells are arranged in parallel, each battery cell is approximately parallel to the central line direction of the handle 12, the battery pack 9 formed by the two rows of battery cells is approximately a cuboid, the height of the battery pack is the diameter of two battery cells, the width of the battery pack is the diameter of one battery cell, and the length of the battery pack is the length of 3 battery cells. Since the handle 12 is substantially cylindrical and the housing space thereof is also cylindrical, when the battery pack 9 is housed in the handle 12, the height of the battery pack 9 corresponds to the inner diameter of the housing space of the handle, but two substantially symmetrical cavities are formed between the inner wall of the handle 12 and the outer surface of the battery pack 9 in the width direction of the battery pack 9. Therefore, the cavity is favorable for air flow circulation and heat insulation, the temperature influence of the battery pack 9 on a handle holding area is reduced, the temperature loss of the battery pack 9 is facilitated, the diameter of the handle 12 can be smaller, the comfortable holding requirement of hands is met, and the holding discomfort caused by too thick holding is avoided.

In one embodiment, the heat insulation layer 121 is tightly wrapped on the periphery of the battery pack 9, the cavity is formed between the heat insulation layer 121 and the inner wall of the handle 12, the heat insulation layer 121 is tightly arranged on the outer surface of the battery pack 9, the using amount of the heat insulation layer 121 can be saved, and the cavity between the outer surface of the heat insulation layer 121 and the inner wall of the handle 12 is used for further isolating heat from being conducted to the wall of the handle.

In another embodiment, the insulation 121 is disposed against the inner wall of the handle 12, and a cavity is formed between the outer surface of the battery pack 9 and the insulation 121. The heat insulation layer 121 is tightly attached to the inner wall of the handle 12, and the battery pack 9 and the cavity are both located in the heat insulation layer 121, so that the heat of the battery pack 9 can be slowly dissipated in the cavity, the heat is prevented from being accumulated on the battery pack 9, the battery pack is prevented from being damaged due to overheating, and the service life of the battery pack 9 can be ensured.

The above is only one embodiment of the present invention, and any other modifications based on the concept of the present invention are considered as the protection scope of the present invention.

Claims

1. A hand-held cleaner, comprising:

a main housing;

a handle connected to or integrally formed with the main housing, the handle having a gripping area for a user to grip;

the battery pack is electrically connected with the fan assembly and used for providing electric energy for the operation of the fan assembly, an accommodating space is formed in the handle, at least part of the battery pack is arranged in the accommodating space, and at least part of the battery pack is positioned in the holding area;

when the handheld dust collector is in a dust collection working state, the current output outwards by the battery pack is more than or equal to 5A;

the heat insulation layer is arranged in the circumferential direction of the battery pack and used for limiting heat conduction between the battery pack and the holding area, and the heat insulation layer is mica paper;

the battery pack comprises a plurality of battery cells, the battery cells are arranged in two rows along the central line direction of the handle, and two approximately symmetrical cavities are formed between the inner wall of the handle and the outer surface of the battery pack; the heat insulation layer is closely attached to the periphery of the battery pack or the inner wall of the handle;

the holding area is provided with a containing part for containing the battery pack, and the heat insulation layer is arranged around the battery pack along at least part of the inner wall of the containing part;

the heat insulation layer is continuously and circularly covered in the circumferential direction of the battery pack; or the heat insulation layer is provided with a break gap in the circumferential direction of the battery pack, and the width of the break gap is not more than 5 mm;

the heat insulation layer covers more than 50% of the total area of the inner wall of the accommodating part;

the insulating layer covers more than 40% of the total area of the inner wall of the gripping area.

2. The hand-held cleaner of claim 1, wherein the insulation layer has a thickness in a range of 0.1mm to 4 mm.