CN215742497U - Filter dust collector and electric tool - Google Patents

Abstract

The utility model discloses a filtering and dust removing device and an electric tool, wherein the filtering and dust removing device is used for removing dust of the electric tool, the filtering and dust removing device is arranged in a shell of the electric tool, an air channel is arranged in the shell, the air channel extends along the axial direction of the shell, the filtering and dust removing device comprises a filter element, the filter element is arranged in the shell and extends along the radial direction of the shell, an air inlet channel extending along the length direction of the filter element is arranged in the filter element, an air inlet is arranged on the side surface of the shell, the air inlet is communicated with the air inlet channel, a plurality of filtering holes are formed in the outer peripheral surface of the filter element, the plurality of filtering holes are arranged on the outer peripheral surface of the filter element at intervals along the length direction of the filter element, and the air channel is communicated with the air inlet channel through the filtering holes. Filter dust collector's filter core and set up in the inside of casing along the radial direction of casing, filter the hole setting on the outer peripheral face of filter core, keep away from the surface setting of casing, and wind energy can flow to the middle part of casing through the filter hole on the filter core, and the heat dissipation in the casing is with higher speed.

Description

Filter dust collector and electric tool

Technical Field

The utility model relates to a filtering and dust removing device and an electric tool.

Background

As shown in fig. 1, a filter screen 101 of the electric tool is generally disposed on an outer surface of a housing, and when the electric tool is used or placed, dust on a hand or dust in a workplace is easily adhered to the filter screen 101, so that air intake resistance is increased, a heat dissipation effect is poor, and a risk of burn-out failure is brought. The filter screen 101 of some electric tools can not be disassembled, and some dust can be blown to the inside of the machine no matter the high-pressure air is used for blowing or brushing, which is not beneficial to cleaning. The filter screen 101 of some electric tool can be cleared up through the mode of dismantling, though can be with filter screen 101 clean up, but some users are loaded down with trivial details or do not have extracting tool to dismantling filter screen 101, cause the untimely damage machine of clearance.

As shown in fig. 2, a part of the filter screen 101 is disposed on the electric tool at the side of the housing, and the wind enters from the side of the housing and turns 90 ° to flow along the wind channel at the inner side wall of the housing, which is not favorable for cooling the electronic components disposed in the middle area 102 of the housing inner cavity, and the wind flow direction 300' is indicated by the arrow mark in fig. 2. Some electric tools set up filter screen 101 at the tail end of casing, and although wind can flow along the direction of the regional 102 of middle part of casing, the afterbody air inlet makes the wind channel lengthen, the wind loss increases, causes the wind speed little, and the radiating effect is not good.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of poor heat dissipation effect caused by the fact that a filter screen of an electric tool is arranged on the surface of a machine shell in the prior art, and provides a filtering and dust removing device and the electric tool.

The utility model solves the technical problems through the following technical scheme:

the utility model provides a filter dust collector, its is used for electric tool to remove dust, filter dust collector install in electric tool's casing, the inside of casing has the wind channel, the wind channel is followed the axial direction of casing extends, filter dust collector includes the filter core, the filter core set up in the inside of casing is followed the radial direction of casing extends, the inside of filter core has the inlet air duct who extends along its length direction, the side of casing has the air intake, the air intake with the inlet air duct intercommunication, be provided with on the outer peripheral face of filter core and filter the hole, the quantity of filtering the hole is a plurality of, and is a plurality of filter the hole edge the length direction interval of filter core set up in on the outer peripheral face of filter core, the wind channel passes through filter the hole with the inlet air duct intercommunication.

In this scheme, this filter dust collector's filter core sets up in the inside of casing along the radial direction of casing, and the filtration pore setting is kept away from the surface setting of casing on the outer peripheral face of filter core, and wind energy can be enough through the middle part of the filtration pore flow direction casing on the filter core, improves the radiating effect in the casing. Meanwhile, the filter holes directly communicated with the air channel in the shell are arranged in the filter element instead of being exposed on the surface of the shell, external air firstly flows into the filter element along the air inlet channel arranged in the radial direction, then the flow direction is changed to flow into the shell through the filter holes in the filter element, dust on hands or dust on a workplace can be prevented from being directly adhered to the filter holes, and the cleanliness and the heat dissipation effect of the filter device are improved.

Preferably, the filter core includes filter core body and filter screen, be provided with the ventilation hole on the filter core body, the filter screen cover in the ventilation hole, be provided with the filtration pore on the filter screen, the aperture of filtering the pore is less than the aperture in ventilation hole.

In this scheme, adopt above-mentioned structural style, the filter core body forms support chassis for support the filter screen, also be convenient for change or clear up the filter screen, avoid the particle diameter to be greater than the dust entering casing in filtration pore aperture, improve the filter effect in filtration pore. In other alternatives, the filter element may be rolled from a screen.

Preferably, the filtering and dust removing device further comprises a dust removing unit, the dust removing unit is used for cleaning dust on the surface of the filter element, the dust removing unit is installed in the shell, one end of the dust removing unit abuts against the outer peripheral surface of the filter element, and the filter element can rotate around the axis of the filter element;

when the filter element rotates, the dust removal unit covers the area where the filter hole is located.

In this scheme, the dust removal unit is used for clearing up the dust on filter core surface, and the dust of being cleared up falls into inlet air duct, then discharges from inlet air duct, and can not get into inside the casing. Meanwhile, by rotating the filter element, the dust removal unit can clean all filter holes on the filter element, so that dead corners are avoided, and the cleaning effect of the filter element is improved.

Preferably, the dust removal unit is a brush.

In this scheme, the brush hair butt of brush can utilize the flexibility of brush hair can go deep into in the filter pore on the surface of filter core, improves clean effect.

Preferably, the brush is disposed above the filter element.

In this scheme, adopt above-mentioned structural style, can rely on gravity to fall to air inlet channel in by the not hard up dust of brush hair, be convenient for by the collection and discharge the filter core.

Preferably, both ends of the filter element extend to the outer surface of the shell, and the air inlet channel penetrates from one end of the filter element to the other end of the filter element.

In this scheme, adopt above-mentioned structural style, outside wind energy can get into the filter core from the both ends of filter core, improves the intake, improves the radiating effect correspondingly. When the dust of clearance filter core, from inlet air channel's one end, utilize wind or brush to discharge the dust from inlet air channel's the other end, easy operation is convenient.

Preferably, both ends of the filter element protrude out of the surface of the housing.

In this scheme, adopt above-mentioned structural style, be convenient for hold and rotate the filter core.

Preferably, the outer peripheral surface of the filter element is provided with a limiting flange which extends and protrudes outwards along the radial direction, the two ends of the filter element are respectively provided with the limiting flange, and the limiting flange is used for fixing the filter element on the shell.

In this scheme, adopt above-mentioned structural style, limiting flange is used for fixing the filter core on the casing, prevents that the filter core from the casing roll-off.

Preferably, the casing includes main casing, first subshell and the vice casing of second, main casing, first subshell and the vice casing of second connect each other and enclose the casing, the filter core inlays to be located first subshell with between the vice casing of second.

In this scheme, adopt above-mentioned structural style, the dismouting filter core of being convenient for, the clearance wind channel of also being convenient for.

The electric tool comprises a shell and a motor arranged in the shell, and further comprises the filtering and dust removing device, wherein the filtering and dust removing device is arranged in the shell and is positioned between the motor and the tail end of the shell.

In this scheme, outside wind gets into before in electric tool's the casing, need filter dust collector and filter through, because filter the hole and hide the setting in the filter core, rather than exposing in the surface of casing, outside wind flows into inlet air channel earlier, then changes the flow direction and flows into in the casing through the filter hole on the filter core, can prevent that the dust of hand dust or workplace from directly gluing to filter the hole on, improves the cleanliness factor that filters dust collector, extension electric tool's life. Wherein, the tail end of the shell is one end far away from the output shaft.

On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the utility model.

The positive progress effects of the utility model are as follows: this filter dust collector's filter core sets up in the inside of casing along the radial direction of casing, and the filtration pore sets up on the outer peripheral face of filter core, keeps away from the surface setting of casing, and wind energy can flow to the middle part of casing through the filtration pore flow on the filter core, improves the radiating effect in the casing. Meanwhile, the filter holes directly communicated with the air channel in the shell are arranged in the filter element in a hidden mode instead of being exposed on the surface of the shell, outside air firstly flows into the filter element along the air inlet channel arranged in the radial direction, then the flowing direction is changed to flow into the shell through the filter holes in the filter element, dust on hands or dust on a workplace can be prevented from being directly adhered to the filter holes, and the cleanliness and the heat dissipation effect of the filter dust removal device are improved.

Drawings

Fig. 1 is a schematic diagram illustrating a position of a filter screen of a power tool disposed on an outer surface in the related art.

Fig. 2 is a schematic view showing the flow of air inside the power tool in the related art.

Fig. 3 is a schematic structural diagram of an electric tool according to a preferred embodiment of the utility model.

Fig. 4 is a schematic cross-sectional view taken along line a-a in fig. 3.

Fig. 5 is a schematic structural diagram of a first view angle of a filtering and dust removing device according to a preferred embodiment of the utility model.

Fig. 6 is an exploded view of a filter dust collector according to a preferred embodiment of the present invention.

Fig. 7 is a second perspective view of the filter device according to a preferred embodiment of the present invention.

Fig. 8 is a schematic structural view of a filter element according to a preferred embodiment of the present invention.

Description of reference numerals:

reference numerals of the background art

Filter screen 101

Middle region 102

Wind flows to 300'

Reference numerals of the utility model

Filtering and dust removing device 10

Housing 1

Air duct 11

Main case 12

First sub-housing 13

Second sub-housing 14

Mounting hole 15

Filter element 2

Air intake channel 21

Filter cartridge body 22

Vent hole 221

Filter screen 23

Filtering hole 231

Limit flange 24

Dust removal unit 25

Axial direction 100

Radial direction 200

Wind flow direction 300

Detailed Description

The present invention will be more clearly and completely described below by way of examples and with reference to the accompanying drawings, but the present invention is not limited thereto.

As shown in fig. 3-8, the embodiment discloses a dust filtering and removing device, the dust filtering and removing device 10 is used for dust removal of an electric tool, the dust filtering and removing device 10 is installed in a housing 1 of the electric tool, an air duct 11 is arranged inside the housing 1, the air duct 11 extends along an axial direction 100 of the housing 1, the dust filtering and removing device 10 includes a filter element 2, the filter element 2 is arranged inside the housing 1 and extends along a radial direction 200 of the housing 1, an air inlet channel 21 extending along a length direction of the filter element 2 is arranged inside the filter element 2, an air inlet is arranged on a side surface of the housing 1 and is communicated with the air inlet channel 21, a plurality of filter holes 231 are arranged on an outer peripheral surface of the filter element 2 at intervals along the length direction of the filter element 2, and the air duct 11 is communicated with the air inlet channel 21 through the filter holes 231.

In this embodiment, the filter element 2 of the filtering and dust removing device 10 is disposed inside the casing 1 along the radial direction 200 of the casing 1, the filtering holes 231 are disposed on the outer peripheral surface of the filter element 2 and away from the surface of the casing 1, and the wind can flow to the middle of the casing 1 through the filtering holes 231 on the filter element 2, thereby improving the heat dissipation effect in the casing 1. Meanwhile, the filtering holes 231 directly communicated with the air duct 11 in the shell 1 are arranged in the filter element 2 instead of being exposed on the surface of the shell 1, external air firstly flows into the filter element 2 along the air inlet channel 21 arranged along the radial direction, and then the flow direction is changed to flow into the shell 1 through the filtering holes 231 on the filter element 2, so that dust on hands or dust on a workplace can be prevented from directly sticking to the filtering holes 231, and the cleanliness and the heat dissipation effect of the filtering and dust removing device are improved. Wind flow direction 300 is shown by the arrow in FIG. 4.

The filter element 2 comprises a filter element body 22 and a filter screen 23, a vent hole 221 is formed in the filter element body 22, the vent hole 221 is in a long strip shape, the filter screen 23 covers the vent hole 221, and the filter element body 22 forms a supporting framework for supporting the filter screen 23. Be provided with on the filter screen 23 and filter hole 231, the aperture of filtering hole 231 is less than the aperture of ventilation hole 221, avoids the dust that the particle diameter is greater than the aperture of filtering hole 231 to get into casing 1, can improve the filter effect who filters hole 231, sets up filter screen 23 simultaneously and also is convenient for change or clearance filter core 2. In other embodiments, the filter element may be rolled from a screen.

On the basis, the filtering and dust removing device 10 further comprises a dust removing unit 25, the dust removing unit 25 is used for cleaning dust on the surface of the filter element 2, the dust removing unit 25 is installed in the shell 1, one end of the dust removing unit 25 abuts against the outer peripheral surface of the filter element 2, and the filter element 2 can rotate around the axis of the filter element 2. The dust removing unit 25 is used for cleaning dust on the surface of the filter element 2, and the cleaned dust falls into the air inlet channel 21 and is then discharged from the air inlet channel 21 without entering the inside of the housing 1.

By rotating the filter element 2, the dust removing unit 25 can clean all the filter holes 231 of the filter element 2. When the filter element 2 rotates, the dust removing unit 25 covers the area where the filtering holes 231 are located, so that dead corners are prevented from being cleaned, and the cleaning effect of the filter element 2 is improved.

In this embodiment, the dust removing unit 25 is a brush, and bristles of the brush abut against the surface of the filter element 2, so that the bristles can penetrate into the filter holes 231 by utilizing the flexibility of the bristles, thereby improving the cleaning effect. Preferably, the brush is disposed above the filter element 2 so that dust loosened by the brush bristles can fall down into the air intake passage 21 by gravity, to be collected and discharged out of the filter element 2.

In this embodiment, the two ends of the filter element 2 extend to the outer surface of the casing 1, the air inlet channel 21 penetrates from one end of the filter element 2 to the other end, and external air can enter the filter element 2 from the two ends of the filter element 2, so that the air inlet amount is increased, and the heat dissipation effect is correspondingly improved. When the dust in the filter element 2 is cleaned, the dust can be discharged from one end of the air inlet channel 21 by wind or a brush from the other end of the air inlet channel 21, and the operation is simple and convenient.

In order to facilitate holding and rotating the filter element 2 by a hand, two end parts of the filter element 2 are protruded out of the surface of the shell 1.

When the filter element 2 is rotated, in order to prevent the filter element 2 from slipping out of the casing 1, the outer peripheral surface of the filter element 2 is provided with a limiting flange 24 which extends and protrudes outwards along the radial direction 200, the two ends of the filter element 2 are both provided with the limiting flanges 24, and the limiting flanges 24 are used for fixing the filter element 2 to the casing 1.

In order to facilitate the assembly and disassembly of the filter element 2 and the cleaning of the air duct 11, the housing 1 comprises a main shell 12, a first auxiliary shell 13 and a second auxiliary shell 14, the main shell 12, the first auxiliary shell 13 and the second auxiliary shell 14 are connected with each other to form the housing 1, and the filter element 2 is installed between the first auxiliary shell 13 and the second auxiliary shell 14 through the installation hole 15.

As shown in fig. 3, the embodiment further discloses an electric tool, which includes a housing 1 and a motor installed in the housing 1, and the electric tool further includes the above-mentioned dust filtering and removing device 10, and the dust filtering and removing device 10 is disposed in the housing 1 and located between the motor and the tail end of the housing 1. Wherein, the tail end of the shell 1 is one end far away from the output shaft of the electric tool. Before outside wind got into electric tool's casing 1 in, need filter dust collector and filter, because filter hole 231 conceals to set up in filter core 2, rather than exposing in casing 1's surface, outside wind flows into inlet air duct 21 earlier, then changes the flow direction and flows into in casing 1 through filter hole 231 on filter core 2, can prevent that dust on hand or workplace's dust from directly gluing on filtering hole 231, improve the cleanliness factor who filters dust collector, extension electric tool's life.

While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the utility model, and these changes and modifications are within the scope of the utility model.

Claims (10)

1. The utility model provides a filter dust collector, its is used for electric tool to remove dust, its characterized in that, filter dust collector install in electric tool's casing, the inside of casing has the wind channel, the wind channel is followed the axial direction of casing extends, filter dust collector includes the filter core, the filter core set up in the inside of casing is followed the radial direction of casing extends, the inside of filter core has the inlet air duct who extends along its length direction, the side of casing has the air intake, the air intake with the inlet air duct intercommunication, be provided with on the outer peripheral face of filter core and filter the hole, the quantity of filtering the hole is a plurality of, and is a plurality of filter the hole edge the length direction interval of filter core set up in on the outer peripheral face of filter core, the wind channel passes through filter the hole with the inlet air duct intercommunication.

2. The filtering and dust removing device of claim 1, wherein the filter element comprises a filter element body and a filter screen, the filter element body is provided with a vent hole, the filter screen covers the vent hole, the filter screen is provided with a filter hole, and the aperture of the filter hole is smaller than that of the vent hole.

3. The filtering and dust removing device of claim 1, further comprising a dust removing unit for removing dust on the surface of the filter element, wherein the dust removing unit is installed in the housing, one end of the dust removing unit abuts against the outer circumferential surface of the filter element, and the filter element can rotate around its own axis;

when the filter element rotates, the dust removal unit covers the area where the filter hole is located.

4. The filter dust collector as claimed in claim 3, wherein said dust collector is a brush.

5. The filter dust collector as claimed in claim 4, wherein said brush is disposed above said filter element.

6. The filter dust collector as claimed in claim 1, wherein both ends of said filter element extend to the outer surface of said housing, and said air supply passage extends from one end of said filter element to the other end thereof.

7. The filter dust collector of claim 6, wherein both ends of said filter element protrude from the surface of said housing.

8. The filtering and dust removing device of claim 6, wherein the filter element has a limiting flange on its outer peripheral surface, the limiting flange extending outward in the radial direction, the limiting flange is provided at both ends of the filter element, and the limiting flange is used for fixing the filter element to the housing.

9. The filter dust removal device of claim 1, wherein the housing comprises a primary housing, a first secondary housing, and a second secondary housing, the primary housing, the first secondary housing, and the second secondary housing being connected to one another to enclose the housing, the filter element being embedded between the first secondary housing and the second secondary housing.

10. A power tool comprising a housing and a motor mounted in the housing, wherein the power tool further comprises a filter device according to any one of claims 1 to 9, the filter device being disposed in the housing between the motor and a rear end of the housing.

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