CN112587032A

CN112587032A - Filter and dust collector

Info

Publication number: CN112587032A
Application number: CN202011378621.5A
Authority: CN
Inventors: 方剑强; 吴文仙
Original assignee: Ningbo Fujia Industrial Co Ltd
Current assignee: Ningbo Fujia Industrial Co Ltd
Priority date: 2020-12-01
Filing date: 2020-12-01
Publication date: 2021-04-02

Abstract

The invention provides a filter and a dust collector, wherein the filter is positioned between a dust cup shell and a fan shell of the dust collector and comprises a front filter piece and a rear filter piece which are connected together, the front filter piece is used for filtering airflow before flowing into a fan, and the rear filter piece is used for filtering airflow flowing out of the fan. By adopting the filter, the air flow is filtered not only in front of the air outlet duct, but also in the air outlet duct, so that the filtering effect is improved; the filter is positioned between the dust cup shell and the fan shell of the dust collector, the assembly is convenient in the dust collector, and the filter can be detached, cleaned or replaced at any time only by separating the dust cup shell and the fan shell.

Description

Filter and dust collector

Technical Field

The invention relates to the technical field of dust collectors, in particular to a filter and a dust collector.

Background

The filter in the dust collector is usually installed between a dust cup assembly and a fan assembly, air firstly passes through dust-air separation after entering an air inlet duct of the dust collector, most dust is collected in the dust cup, then the dust is further filtered by the filter, and the dust can enter an air outlet duct. In the prior art, because the air outlet duct and the fan unit are integrated, the filter accessories are more troublesome to be added in the air outlet duct, and the integral assembly efficiency of the dust collector is influenced; and the air outlet duct is generally combined with the fan shell into a whole, and the filtering accessories in the air outlet duct are also combined with the fan shell into a whole, so that the air outlet duct is difficult to be detached separately for cleaning or replacement, and can only be replaced together with the fan shell, thereby increasing the use cost of users.

Disclosure of Invention

The invention aims to solve the technical problem of providing a filter which not only filters airflow before an air outlet duct, but also filters airflow in the air outlet duct, improves the filtering effect, is convenient to mount in a dust collector, and can be detached to clean or replace at any time.

The technical scheme includes that the filter is positioned between a dust cup shell and a fan shell of the dust collector and comprises a front filter piece and a rear filter piece which are connected together, the front filter piece is used for filtering airflow before flowing into the fan, and the rear filter piece is used for filtering airflow flowing out of the fan.

Compared with the prior art, the filter has the following advantages: the filter comprises a front filter piece and a rear filter piece which are connected together, the front filter piece is used for filtering airflow before flowing into the fan, and the rear filter piece is used for filtering airflow flowing out of the fan, so that the airflow is filtered before the air outlet duct, and the airflow can be filtered in the air outlet duct, and the filtering effect is improved; the filter is positioned between the dust cup shell and the fan shell of the dust collector, the assembly is convenient in the dust collector, and the filter can be detached, cleaned or replaced at any time only by separating the dust cup shell and the fan shell.

Preferably, the front filter member and the rear filter member are connected back to back, and the air flow before flowing into the blower flows into the front filter member from the left side of the front filter member and flows out from the side portion of the front filter member, and the air flow flowing out from the blower flows into the rear filter member from the right side of the rear filter member and flows out from the side portion of the rear filter member. By adopting the structure, the structure can adapt to the air duct arrangement in the dust collector, airflow flows in from the left side of the front filtering part, and the butt joint of the filter and the air inlet duct is convenient; the airflow flows out from the side part of the front filter piece, and the filtering area is increased by adopting side wall filtering; the airflow flows in from the right side of the rear filter piece, so that the filter is conveniently butted with the air outlet duct; the airflow flows out from the side of the post-filter element, and the filtering area is increased by adopting the side wall filtering.

Preferably, the front filtering piece comprises a front filtering support and a HEPA, an air inlet is formed in the front end of the front filtering support, air flow flows into the front filtering piece from the air inlet, a blocking cover is arranged at the rear end of the front filtering support, the air flow cannot flow out of the front filtering piece through the blocking cover, a ventilation part is arranged on the side part of the front filtering support, the air flow can flow out of the front filtering piece from the ventilation part on the side part of the front filtering support, and all ventilation parts on the side part of the front filtering support are covered by the HEPA. By adopting the structure, the air flow before flowing into the fan flows into the front filtering piece along the axial direction of the air duct and flows out from the side part of the front filtering piece after being filtered by the HEPA, and the structure is simple. The HEPA may be wrapped around the side of the front filter support.

Preferably, the front end of the front filtering support is provided with an annular front end cover, one end of the front end cover, opposite to the HEPA, is provided with a first assembling groove, one end of the HEPA is inserted into the first assembling groove of the front end cover, and the other end of the HEPA is assembled on the baffle cover at the rear end of the front filtering support. By adopting the structure, the sea handkerchief can be fixed, and the sea handkerchief is prevented from being influenced by the air flow and shifted.

Preferably, a sealing groove is formed in one end, back to the HEPA, of the front end cover, and a sealing ring is arranged in the sealing groove. By adopting the structure, after the filter is assembled in the dust collector, the sealing ring is used for abutting against and pressing the connecting part in the dust collector, so that the air flow can completely flow into the filter and be fully filtered, and the air flow is prevented from overflowing from the connecting part between the filter and the dust collector.

Preferably, the sponge is arranged on the inner side of the sea handkerchief. By adopting the structure, the airflow enters the front filter element and is sequentially filtered by the sponge and the HEPA, so that the filtering effect is further improved.

Preferably, the back filters piece including the back filter outer support with filter the cotton, the front end of back filter outer support is provided with the air intake, the air current is followed the air intake flow in the back filter piece, the rear end of back filter outer support is provided with keeps off the lid, the air current can not pass through keep off the lid and flow the back filter piece, the lateral part of back filter outer support is provided with a plurality of ventilation hole, the air current can pass through the ventilation hole and flow the back filter piece, filter the cotton and cover all ventilation holes. Adopt this structure, realized filtering piece after the right side inflow of back filtration piece from the air current that the fan flows out, the lateral part outflow of filtering piece after from after through the filter pulp filtration, simple structure, the filter pulp can be the lateral part that encircles the back filtration outer support. The filter cotton can be regenerated fiber material or sponge.

Preferably, a rear filtering inner support is arranged in the rear filtering outer support, a ventilation part is arranged on the side part of the rear filtering inner support, the filter cotton is clamped between the rear filtering inner support and the rear filtering outer support, airflow can flow out of a rear filtering piece from the coincidence position between the ventilation part on the side part of the rear filtering inner support and the ventilation hole, and the filter cotton covers all the coincidence positions between the ventilation part on the side part of the rear filtering inner support and the ventilation hole. By adopting the structure, the filter cotton can be fixed, the air flow is fully filtered, and the filter cotton is prevented from being influenced by the air flow to shift.

Preferably, be provided with the slot on the preceding filter piece, correspond, be provided with the inserted bar on the back filter piece, the inserted bar corresponds with the slot and is connected the messenger and filter piece and back-to-back assembly before and after together. By adopting the structure, the structure is simple, and the front filter piece and the rear filter piece are assembled together back to back.

Another technical problem to be solved by the present invention is to provide a vacuum cleaner, which not only filters the air flow before the air outlet duct, but also filters the air flow in the air outlet duct, so as to improve the filtering effect, reduce the dust content of the air flow discharged from the air outlet duct, facilitate the assembly of the vacuum cleaner, and enable the filtering element to be detached, cleaned or replaced independently at any time.

The technical scheme of the invention is that the dust collector comprises a dust cup shell and a fan shell, wherein the dust cup shell is connected with the fan shell, a dust-air separation device is arranged in the dust cup shell, a fan assembly is arranged in the fan shell, an air outlet is also arranged on the fan shell, and the filter is arranged between the dust cup shell and the fan shell; the front filter piece is butted with an air outlet of the dust-air separation device and is used for filtering air flow before flowing into the fan assembly; the post-filtering piece is arranged in an air outlet duct in the fan shell, and the post-filtering piece is used for filtering air flow in the air outlet duct.

Compared with the prior art, the dust collector has the following advantages: the filter is arranged between the dust cup shell and the fan shell, airflow is filtered before the air outlet duct, and the airflow can be filtered in the air outlet duct, so that the filtering effect is improved, the dust content of the airflow discharged from the air outlet duct is reduced, and the filter can be detached, cleaned or replaced at any time only by separating the dust cup shell and the fan shell.

Drawings

Fig. 1 is a schematic view of the filter of the present invention.

Fig. 2 is a front view of fig. 1.

Fig. 3 is a sectional view taken along the line a-a of fig. 2.

Fig. 4 is an exploded view of fig. 1.

Fig. 5 is a schematic structural view of an embodiment of the vacuum cleaner of the present invention.

As shown in the figure: 1. the air conditioner comprises a filter, 1-1 parts of a front filtering support, 1-2 parts of a HEPA, 1-3 parts of a sponge, 1-4 parts of a front end cover, 1-5 parts of a sealing ring, 1-6 parts of a slot, 1-7 parts of an inserting rod, 1-8 parts of a rear filtering outer support, 1-81 parts of a vent hole, 1-9 parts of a rear filtering inner support, 1-10 parts of filtering cotton, 1-11 parts of a rear end cover, 2 parts of a dust cup shell, 3 parts of a fan shell, 4 parts of a cyclone separator, 5 parts of a fan component, 6 parts of an air outlet filtering air duct.

Detailed Description

For a better understanding of the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that the detailed description is merely illustrative of exemplary embodiments of the present application and does not limit the scope of the present application in any way. Like reference numerals refer to like elements throughout the specification.

In the drawings, the thickness, size, and shape of an object have been slightly exaggerated for convenience of explanation. The figures are purely diagrammatic and not drawn to scale.

It will be further understood that the terms "comprises," "comprising," "includes," "including," and/or "including," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Further, when a statement such as "… at least one" appears after the list of listed features, the entire listed feature is modified rather than modifying individual elements in the list.

Example 1:

in the invention, the front and rear positions are determined according to the flowing direction of the air. As shown in fig. 1 to 4, the filter of the present invention includes a front filter member for filtering an air flow before flowing into a fan and a rear filter member for filtering an air flow after flowing out from the fan, and the filter of the present invention can perform two-pass filtering of the air flow.

The front filter piece comprises a front filter support 1-1 and a HEPA 1-2, an air inlet is formed in the front end of the front filter support 1-1, air flow flows into the front filter piece from the air inlet, a blocking cover is arranged at the rear end of the front filter support 1-1, the air flow cannot flow out of the front filter piece through the blocking cover, a plurality of supporting columns are arranged on the side portion of the front filter support 1-1, the HEPA 1-2 covers the side portion of the front filter support 1-1 in a surrounding mode, and the air flow flows out of the side portion of the front filter support 1-1 after being filtered by the HEPA 1-2. The front end of the front filtering support 1-1 is also provided with an annular front end cover 1-4, the front end cover 1-4 corresponds to the air inlet of the front filtering piece, one end of the front end cover 1-4 opposite to the HEPA 1-2 is provided with a first assembling groove, one end of the HEPA 1-2 is inserted into the first assembling groove of the front end cover 1-4, one end of the front end cover 1-4 opposite to the HEPA 1-2 is provided with a sealing groove, and a sealing ring 1-5 is arranged in the sealing groove. The front end cover 1-4 and the front end of the front filtering bracket 1-1 can be connected by a buckle. After the filter is assembled in the dust collector, the sealing rings 1-5 are used for abutting against and pressing a connecting part in the dust collector, so that the air flow can completely flow into the filter, and the air flow is prevented from overflowing from the connecting part between the filter and the dust collector. A second assembly groove is formed in the blocking cover at the rear end of the front filtering support 1-1, the second assembly groove is opposite to the other end of the HEPA 1-2, and the other end of the HEPA 1-2 is inserted into the second assembly groove. The sponge 1-3 is arranged on the inner side of the HEPA 1-2, the airflow enters the front filter piece and is sequentially filtered by the sponge 1-3 and the HEPA 1-2, the filtering effect is further improved, and the sponge 1-3 is made of thick sponge, so that the filtering effect is better. The baffle cover at the rear end of the front filtering bracket 1-1 is also provided with a plurality of slots 1-6, and the slots 1-6 are positioned at one side of the baffle cover back to the HEPA 1-2.

The post-filtering piece comprises post-filtering outer frames 1-8 and filtering cotton 1-10, an air inlet is formed in the front end of each post-filtering outer frame 1-8, air flow flows into the post-filtering piece from the air inlet, a blocking cover is arranged at the rear end of each post-filtering outer frame 1-8, the air flow cannot flow out of the post-filtering piece through the blocking cover, a plurality of ventilation holes 1-81 are formed in the side portions of the post-filtering outer frames 1-8, the filtering cotton 1-10 surrounds the side portions of the post-filtering outer frames 1-8 and covers all the ventilation holes 1-81, and the air flow flows out of the ventilation holes 1-81 in the side portions of the post-filtering outer frames 1-8 after being filtered by the filtering cotton. A plurality of inserting rods 1-7 are arranged on the blocking cover at the rear end of the rear filtering outer support 1-8, the inserting rods 1-7 are opposite to the slots 1-6 on the front filtering support 1-1, and the inserting rods 1-7 are correspondingly connected with the slots 1-6 to enable the front filtering piece and the rear filtering piece to be assembled together back to back. In order to fix the filter cotton 1-10, the post-filtering inner support 1-9 can be arranged in the post-filtering outer support 1-8, the side part of the post-filtering inner support 1-9 is only provided with a plurality of support columns, and the filter cotton 1-10 is clamped between the post-filtering inner support 1-9 and the post-filtering outer support 1-8 to filter airflow. The front end of the rear filtering outer support 1-8 is also provided with an annular rear end cover 1-11, the rear end cover 1-11 is correspondingly connected with the front end of the rear filtering piece, one end of the rear filtering inner support 1-9 is in abutting compression or buckling connection with the inner side of the baffle cover of the rear filtering outer support 1-8, the other end of the rear filtering inner support 1-9 and the front end of the rear filtering outer support 1-8 can be fixed on the rear end cover 1-11 together, and the rear end cover 1-11 can be connected with the front ends of the rear filtering inner support 1-9 and the rear filtering outer support 1-8 by adopting a buckle.

Example 2:

as shown in fig. 5, the vacuum cleaner of the present invention includes a dust cup housing 2 and a fan housing 3, the dust cup housing 2 is connected to the fan housing 3, a cyclone 4 is disposed in the dust cup housing 2 as a dust-air separating device, a fan assembly 5 is disposed in the fan housing 3, an air outlet is further disposed on the fan housing 3, a filter 1 in the above embodiment is disposed between the cyclone 4 and the fan assembly 5, i.e., the filter 1 is disposed between the dust cup housing 2 and the fan housing 3, a front filter is abutted to the air outlet of the cyclone 4, a rear filter is disposed in an air outlet duct in the fan housing 3, and the air outlet duct in which the rear filter is disposed is an air outlet filter duct 6. The outside air enters the cyclone separator 4 from an air inlet channel of the dust collector, the dust and air are separated by the cyclone separator 4, the air after dust and air separation flows out of the cyclone separator 4 and enters a front filter piece of the filter 1, the flow direction of the air flow is shown as the arrow direction in figure 5, the sponge 1-3 and the HEPA 1-2 in the front filter piece carry out double-layer filtration on residual particle impurities in the air, the filtered air is sucked into the fan assembly 5, then flows out of the fan assembly to the air outlet filtering air duct 6, is further filtered by the filter cotton 1-10 in the rear filter piece, and finally is discharged from an air outlet on the fan shell 3 along the air outlet duct of the dust collector.

The side wall of the rear filter piece, which is surrounded and covered by the filter cotton 1-10, can be positioned between the fan assembly 5 and the fan shell 3, air is filtered by the filter cotton 1-10 before being discharged from the air outlet, one filtering is added in the air outlet duct, the filtering effect is improved, and at the moment, the volume in the side wall of the rear filter piece is large enough to contain the fan assembly 5 in a whole. Or a layer of wind shielding clamping wall can be arranged between the fan component 5 and the fan shell 3, the front end of the rear filter element can be butted with the clamping wall and pressed against the clamping wall, so that the airflow flowing out of the fan component can not directly flow to the air outlet on the fan shell 3 through the clamping wall to be discharged, but can flow out to the air outlet duct between the clamping wall and the fan shell 3 only through the side part of the post-filter element, and finally out of the outlet opening in the fan housing 3, as shown in fig. 5, this process causes the air to be filtered by the filter cloths 1-10 before exiting the outlet opening, thus, the air outlet stroke of the air is prolonged, the noise generated when the air flows in the air outlet duct is very small, the filtering effect can be improved, and the back filter piece does not need to be capable of containing the whole fan assembly 5, so that the volume in the side wall of the back filter piece can be greatly reduced.

The filter 1 is assembled between the dust cup shell 2 and the fan shell 3, so that air flow can be filtered before air enters the air outlet duct, the air flow can be filtered in the air outlet duct, a filtering link is added, the filtering effect is improved, and the filter is convenient to assemble in the dust collector and can be detached to clean or replace at any time.

The above are merely specific examples of the present invention, and are not intended to limit the scope of the invention; it is intended that the following claims be interpreted as including all such alterations, modifications, and equivalents as fall within the true spirit and scope of the invention.

Claims

1. A filter is arranged between a dust cup shell (2) and a fan shell (3) of a dust collector and is characterized by comprising a front filter piece and a rear filter piece which are connected together, wherein the front filter piece is used for filtering airflow flowing into a fan in front, and the rear filter piece is used for filtering airflow flowing out of the fan.

2. The filter of claim 1, wherein the front and rear filter elements are connected back-to-back, and wherein airflow before entering the blower flows from the left side of the front filter element into the front filter element and out the sides of the front filter element, and airflow from the blower flows from the right side of the rear filter element into the rear filter element and out the sides of the rear filter element.

3. A filter according to claim 2, characterised in that the front filter element comprises a front filter holder (1-1) and a hepa (1-2), the front end of the front filter holder (1-1) is provided with an air inlet through which the air flow flows into the front filter element, the rear end of the front filter holder (1-1) is provided with a cover through which the air flow cannot flow out of the front filter element, the side of the front filter holder (1-1) is provided with an air passage portion through which the air flow can flow out of the front filter element from the air passage portion of the side of the front filter holder (1-1), and the hepa (1-2) covers all the air passage portions of the side of the front filter holder (1-1).

4. A filter according to claim 3, wherein the front end of the front filter holder (1-1) is provided with an annular front end cap (1-4), the end of the front end cap (1-4) opposite to the hepa (1-2) is provided with a first assembly groove, one end of the hepa (1-2) is inserted into the first assembly groove of the front end cap (1-4), and the other end of the hepa (1-2) is assembled on a stop cover at the rear end of the front filter holder (1-1).

5. A filter according to claim 4, characterised in that the end of the front end cap (1-4) facing away from the HEPA (1-2) is provided with a sealing groove in which a sealing ring (1-5) is arranged.

6. A filter according to claim 3, characterised in that the inside of the hypa (1-2) is provided with a sponge (1-3).

7. A filter according to claim 2, characterised in that the post-filter comprises an outer post-filter support (1-8) and filter cotton (1-10), the front end of the outer post-filter support (1-8) is provided with an air inlet through which the air flow flows into the post-filter, the rear end of the outer post-filter support (1-8) is provided with a cover through which the air flow cannot flow out of the post-filter, the side of the outer post-filter support (1-8) is provided with a plurality of ventilation holes (1-81) through which the air flow can flow out of the post-filter, and the filter cotton (1-10) covers all the ventilation holes (1-81).

8. A filter according to claim 7, characterized in that a post-filter inner support (1-9) is arranged in the post-filter outer support (1-8), the side of the post-filter inner support (1-9) is provided with a ventilation location, filter cotton (1-10) is clamped between the post-filter inner support (1-9) and the post-filter outer support (1-8), the air flow can flow out of the post-filter element from the coincidence position between the ventilation location on the side of the post-filter inner support (1-9) and the ventilation hole (1-81), and the filter cotton (1-10) covers all the coincidence positions between the ventilation location on the side of the post-filter inner support (1-9) and the ventilation hole (1-81).

9. A filter according to claim 2, characterised in that the front filter element is provided with slots (1-6) and correspondingly the rear filter element is provided with rods (1-7), which rods (1-7) are correspondingly connected to the slots (1-6) so that the front and rear filter elements are assembled back-to-back.

10. A vacuum cleaner, comprising a dust cup housing (2) and a fan housing (3), the dust cup housing (2) being connected to the fan housing (3), the dust cup housing (2) being provided with a dust-air separation device, the fan housing (3) being provided with a fan assembly (5), the fan housing (3) being further provided with an air outlet, characterized in that a filter (1) as claimed in any one of claims 1 to 9 is provided between the dust cup housing (2) and the fan housing (3); the front filter piece is butted with an air outlet of the dust-gas separation device and is used for filtering airflow before flowing into the fan assembly (5); the post-filtering piece is arranged in an air outlet duct in the fan shell (3), and the post-filtering piece is used for filtering air flow in the air outlet duct.