CN211484369U - Motor unit and dust collector - Google Patents

Abstract

The utility model relates to a motor unit and dust catcher belongs to dust catcher technical field, has solved the not good problem of motor unit overall arrangement among the current dust catcher. The utility model discloses a motor unit, including the motor cover and install the motor element in the motor cover, the motor element includes motor, seal cover, gas deflector, air-out filter and motor control panel; the sealing sleeve is wrapped at the air inlet end of the motor; the front end of the gas guide plate is butted with a gas outlet port of the motor. The motor is clamped in the motor cover through the front sealing sleeve and the air outlet filtering component, and a rear sealing element is not needed, so that the fixing mode of the motor is simplified, and the processing cost is reduced; the air outlet filtering piece is arranged in the motor cover, so that the diameter of the motor unit can be effectively reduced, the size of the motor unit is reduced, and the overall size of the dust collector is also reduced.

Description

Motor unit and dust collector

Technical Field

The utility model relates to a dust catcher technical field especially relates to a motor unit and dust catcher.

Background

In current dust catcher, the motor is generally fixed in the motor cover through the preceding seal cover of parcel in the motor front end outside with back sealing member, gives vent to anger the filter component parcel in motor cover week side to filter from motor cover combustion gas, so make the volume of giving vent to anger the filter component great, and then lead to the dust catcher in the regional too big of distribution electrical machinery unit, make the whole size increase of dust catcher, influence the whole molding of dust catcher.

SUMMERY OF THE UTILITY MODEL

In view of the foregoing analysis, an embodiment of the present invention provides a motor unit and a vacuum cleaner, so as to solve the problem of poor layout of the motor unit in the conventional vacuum cleaner.

On one hand, the embodiment of the utility model provides a motor unit, including the motor cover and install the motor element in the motor cover, the motor element includes motor, seal cover, gas deflector, air-out filter piece and motor control panel; the sealing sleeve is wrapped at the air inlet end of the motor; the front end of the gas guide plate is butted with a gas outlet port of the motor.

Further, the front end of the gas guide plate is hermetically connected with a gas outlet port of the motor;

the air guide plate surrounds the outer side of the air outlet filter piece;

the motor control board is positioned at the rear end of the motor and is connected with the motor;

the air outlet filtering piece is arranged in a space surrounded by the motor control panel, the gas guide plate and the motor cover;

the gas guide plate and the motor are arranged in a surrounding way to form a gas guide channel, or the gas guide plate alone forms the gas guide channel;

the inlet of the gas guide channel is communicated with the gas outlet port of the motor, and the outlet of the gas guide channel faces the gas outlet filter piece.

Furthermore, the outer wall of the sealing sleeve is connected with the motor cover in a sealing mode, and an air inlet is formed in the center of the sealing sleeve.

Further, the motor cover comprises a front cover body and a rear cover body, and the front cover body is detachably connected with the rear cover body.

Further, the rear cover body is provided with a rear end assembly cavity, and the rear end of the motor, the motor control panel, the gas guide plate and the air outlet filtering piece are assembled in the rear end assembly cavity.

Further, the rear end of the rear cover body is provided with an air outlet grid part, and the air outlet grid part is communicated with the rear end assembly cavity.

Furthermore, the front end of the air-out filtering piece is positioned in the rear end assembly cavity, and the rear end of the air-out filtering piece is positioned in the air-out grid part.

Furthermore, the front cover body comprises a wind collecting part and a front cover part, and the front cover part is positioned on the rear end face of the wind collecting part;

the front cover part is provided with a front end assembly cavity, the sealing sleeve and the front end of the motor are assembled in the front end assembly cavity, and the sealing sleeve is connected with the front end assembly cavity in a sealing manner;

the wind collecting part is provided with a through hole communicated with the front end assembly cavity, and the through hole corresponds to the air inlet hole of the sealing sleeve.

On the other hand, the embodiment of the utility model provides a dust catcher, including foretell motor element, the subassembly and the casing of airing exhaust.

Further, the motor unit is installed at the rear end of the shell, and the air outlet grid part of the motor unit penetrates out of the rear end face of the shell;

the air exhaust component covers the air outlet grid part and is connected with the rear end face of the shell.

Further, the exhaust assembly comprises an exhaust filter element and an exhaust hood;

the exhaust hood is provided with an exhaust assembly cavity, and the exhaust filtering piece is assembled in the exhaust assembly cavity;

the exhaust hood is provided with an exhaust outlet which is communicated with the exhaust assembly cavity.

Furthermore, the rear end face of the exhaust hood is provided with a nameplate groove, and a positioning part is arranged in the nameplate groove.

Further, the exhaust filtering piece is provided with a grid assembly cavity, and the air outlet grid part is located in the grid assembly cavity.

Compared with the prior art, the utility model discloses can realize one of following beneficial effect at least:

(1) the motor is clamped in the motor cover through the front sealing sleeve and the air outlet filtering component, and a rear sealing piece is not needed, so that the fixing mode of the motor is simplified, and the processing cost is reduced;

(2) the air outlet filtering piece is arranged in the motor cover, so that the diameter of the motor unit can be effectively reduced, the volume of the motor unit is reduced, and the overall size of the dust collector is also reduced;

(3) the gas is directly guided to the air-out filtering piece and the air-out filtering piece respectively through the gas guide plate and the air-out grid part, so that the gas filtering effect is better;

(4) the air is guided for multiple times through the guide grooves, the air guide plates and the air outlet grid parts, so that the air flows more smoothly in the motor unit, the air flow speed can be effectively improved, and the suction force of the dust collector is increased;

(5) the lap joint part is arranged on the front cover body, and a connecting position is additionally arranged for assembling the dust collecting cup body, so that the connecting performance of the dust collecting cup body is improved, and the dust collecting cup body is prevented from falling off from the containing cavity of the dust collecting cup body, so that the normal work of the dust collector is influenced by the falling off of the dust collecting cup body;

(6) one part of the air outlet filtering piece is positioned in the rear cover body, the other part of the air outlet filtering piece is positioned in the air outlet grid part, and the air outlet grid part is also positioned in the air exhaust assembly, so that the occupied length of the motor unit in the shell can be effectively reduced, and the overall length of the dust collector is further reduced;

(7) the data plate groove at the rear end of the exhaust hood is provided with a positioning part, so that the data plate sticker can be conveniently positioned.

The utility model discloses in, can also make up each other between the above-mentioned each technical scheme to realize more preferred combination scheme. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout the drawings.

Fig. 1 is a structural view of a motor unit according to a first embodiment;

fig. 2 is a sectional view of the motor unit according to the first embodiment;

FIG. 3 is a structural view of a motor and a gas guide plate according to the first embodiment;

fig. 4 is an exploded view of the motor unit according to the first embodiment;

FIG. 5 is a schematic view of the motor unit and hood assembly of the second embodiment;

FIG. 6 is an exploded view of the motor unit and hood assembly of the second embodiment;

FIG. 7 is a sectional view of the motor unit and hood assembly according to the second embodiment;

FIG. 8 is a structural view of a hood according to a second embodiment;

FIG. 9 is a partial view of a vacuum cleaner according to the second embodiment;

fig. 10 is a structural view of a vacuum cleaner according to a second embodiment.

Reference numerals:

1-a front cover body; 11-a wind-collecting part; 111-plate; 112-an air inlet plate; 113-a rib plate; 114-a guide groove; 115-axial air inlet; 116-radial air inlet; 117-projection; 12-a front cover part; 121-front end assembly chamber; 122-a fitting; 13-a lap joint; 131-assembling a groove; 14-a recess; 141-a limiting plate;

2-a motor assembly; 21-a motor; 22-sealing sleeve; 221-air intake; 23-a gas guide plate; 231-U-shaped notches; 24-air outlet filtering piece; 25-motor control board;

3-rear cover body; 31-a rear end assembly chamber; 311-a connector; 32-air outlet grid part;

4-an exhaust assembly; 41-an exhaust filter element; 411-grid assembly chamber; 42-exhaust hood; 421-air outlet; 422-nameplate groove; 423-a positioning part; 424-assembly slots; 43-nameplate sticker; 431-a positioning groove;

5-a shell; 51-assembly bumps; 52-suction tube;

6-dust collecting cup body; 61-snap-fit part.

Detailed Description

The following detailed description of the preferred embodiments of the invention, which is to be read in connection with the accompanying drawings, forms a part of the invention, and together with the embodiments of the invention, serve to explain the principles of the invention and not to limit the scope of the invention.

Example one

The present embodiment provides a motor unit, as shown in fig. 1 to 4, including a front cover 1, a motor assembly 2, and a rear cover 3, where the motor assembly 2 is installed in a motor cover formed by the front cover 1 and the rear cover 3.

The motor component 2 comprises a motor 21, a sealing sleeve 22, a gas guide plate 23, an air outlet filter piece 24 and a motor control plate 25, wherein the sealing sleeve 22 is wrapped at the air inlet end of the motor 21; the motor control board 25 is positioned at the rear end of the motor 21 and connected with the motor 21 to control the motor 21 to work; the front end of the gas guide plate 23 is butted with the air outlet port of the motor 21, and the gas guide plate 23 surrounds the outer side of the air outlet filter piece 24 so as to guide the gas discharged by the motor 21 to the air outlet filter piece 24 quickly; the air outlet filtering piece 24 is arranged in a space surrounded by the motor control board 25, the gas guide board 23 and the rear cover body 3.

Compared with the prior art, the motor 21 of the embodiment is clamped in the motor cover through the sealing sleeve 22 at the front end and the air outlet filter piece 24 at the rear end, a rear end sealing piece is not needed, and the fixing mode of the motor is simplified; through using gas deflector 23, with the quick air-out filter piece 24 that leads of motor 21 combustion gas, not only saved the rear end sealing member, the air-out filter piece 24 need not set up in motor 21 week side yet, can effectively reduce motor unit's volume.

The outer wall of the sealing sleeve 22 is hermetically connected with the front cover body 1, and an air inlet 221 is formed in the center of the sealing sleeve 22, so that the air flowing into the motor unit from the front cover body 1 flows to the motor 21 through the air inlet 221.

The front end of the gas guide plate 23 is connected with the gas outlet port of the motor 21 in a sealing manner, a gas guide channel is enclosed by the gas guide plate 23 and the motor 21, or the gas guide plate 23 alone forms a gas guide channel, the inlet of the gas guide channel is communicated with the gas outlet port of the motor 21, and the outlet of the gas guide channel faces the air outlet filtering piece 24 so as to guide the gas discharged from the motor 21 to the air outlet filtering piece 24 quickly.

In this embodiment, gas deflector 23 is the U-shaped board, the front end and the 21 lateral wall sealing connection of motor of gas deflector 23, form gas guide channel, and gas guide channel's entry and motor 21's the port of giving vent to anger dock mutually, make and get into gas guide channel from motor 21 combustion gas is whole, gas deflector 23 rear end forms an opening towards the U-shaped notch 231 of air-out filtration piece 24, U-shaped notch 231 link up with gas guide channel for gas leads to air-out filtration piece 24 from U-shaped notch 231 fast. Specifically, the opening direction of the U-shaped notch 231 is perpendicular to the central axis of the motor 21, so that the air is vertically guided to the air outlet filter 24, thereby achieving a better filtering effect. To better direct the gas towards the outlet filter 24, the rear end face of the gas guiding plate 23 is provided with a baffle (not shown in the drawings) to ensure that the gas is directed straight towards the outlet filter 24 more quickly.

In order to accelerate the gas discharge, the motor unit is provided with a plurality of gas guide plates 23, and in this embodiment, the motor unit comprises three gas guide plates 23 which are uniformly distributed on the motor 21, specifically, the three gas guide plates 23 are distributed in an equilateral triangle.

In order to prevent the volume of the motor unit from being increased by the arrangement of the gas guide plate 23 and to make the gas guide plate 23 more stable, in this embodiment, a positioning groove adapted to the gas guide plate 23 is formed on the motor control board 5, and the rear end of the gas guide plate 23 passes through the positioning groove and is surrounded on the peripheral side of the air outlet filter 24. Further, in the present embodiment, the motor control board 5 is a circular board having a diameter smaller than that of the motor 21, and the motor control board 5 is perpendicular to the central axis of the motor 21.

In this embodiment, the air outlet filter 24 is separately disposed, that is, the air outlet filter 24 is in contact with but not fixedly connected with the motor control board 25, the gas guide board 23 and the rear cover 3, so as to replace and maintain the air outlet filter 24.

The rear end of air-out filter piece 24 and motor control board 25 contacts because motor control board 25 in the working process can produce the heat, so air-out filter piece 24's material will select high temperature resistant filtering material to avoid air-out filter piece 24 to be burnt out because of the high fever that motor control board 25 produced. In this embodiment, the air outlet filtering member 24 is made of a filtering sponge.

In addition, the air outlet filter 24 is in a cylindrical shape with a symmetrical center, and the central axis thereof is collinear with the central axis of the motor 21, so as to ensure that the air directly guided to the air outlet filter 24 has a uniform filtering effect. In this embodiment, air-out filter assembly 24's shape is cylindric, and not only the filter effect is even, and is convenient for assemble.

The rear cover 3 is provided with a rear end assembly chamber 31 for mounting the rear end of the motor assembly 2, and in the present embodiment, the rear end of the motor 21, the motor control board 25, the gas guide plate 23, and the air outlet filter member 24 are assembled in the rear end assembly chamber 31.

The rear end of the rear cover body 3 is provided with an air outlet grid part 32 communicated with the rear end assembly cavity 31, and the air is filtered by the air outlet filter 24 and then is guided out from the air outlet grid part 32.

For further location, fixed air-out filter piece 24, also derive gas from motor unit for faster, air-out filter piece 24 front end is located rear end assembly chamber 31, air-out filter piece 24's rear end is located air-out grid portion 32, in order to derive motor unit fast with air-out filter piece 24 filtered gas, air-out grid portion 32 can effectively reduce the degree of depth of rear end assembly chamber 31, thereby reduce the length of the 3 bodies of the rear cover body (the part that forms rear end assembly chamber 31).

Specifically, the air outlet grid part 32 is provided with a rear accommodating cavity communicated with the rear end assembly cavity 31, the shape of the rear accommodating cavity is matched with the air outlet filter member 24, and the length of the rear accommodating cavity is smaller than that of the air outlet filter member 24. In this embodiment, the air outlet grille part 32 is cylindrical, the bottom of the air outlet grille part 32 is a solid plate, and the sidewall of the air outlet grille part 32 is grille-hollowed, so that the air can be directly and quickly guided out from the sidewall of the air outlet grille part 32.

The front cover body 1 covers the front end of the motor component 2 and is used for guiding wind to the motor component 2, preventing foreign matters from invading the motor component to influence the normal work of the motor component and being detachably connected with the dust collection cup body.

The front cover body 1 comprises a wind collecting part 11, a front cover body 12 and a lap joint part 13, wherein the front cover body 12 is positioned on the rear end face of the wind collecting part 11 and covers the front end of the motor assembly; the lap joint part 13 is positioned on the wind collecting part 11, and the front cover body 1 can be detachably connected with the dust collecting cup body through the lap joint part 13; the air flows through the wind collecting part 11 to the front end of the motor assembly in the front cover part 12.

The top of the side wall of the wind collecting part 11 is concave inwards to form a concave part 14, the lapping part 13 is arranged in the concave part 14, and a gap is reserved between the lapping part 13 and the inner wall surface of the concave part 14, so that the dust collecting cup body and the lapping part 13 can be conveniently installed and detached. In the present embodiment, the depressed portion 14 is a rectangular depression, the bottom of the depressed portion 14 is a rectangular plane, the bottom of the depressed portion 14 is parallel to the central axis of the wind-collecting portion 11, the overlapping portion 13 is a rectangular protrusion, and the overlapping portion 13 is disposed at the central position of the rectangular plane and perpendicular to the bottom of the depressed portion 14.

For a better detachable connection of the bridging part 13 to the dust cup body, a fitting groove 131 is provided in the bridging part 13. In this embodiment, the opening of the assembling groove 131 is opposite to the direction of the front cover portion 12, i.e. faces the front of the wind collecting portion 11, the shape of the assembling groove 131 is matched with the overlapping portion 13, and the assembling groove is a rectangular groove, and the lower wall surface of the assembling groove is flush with the bottom of the recessed portion 14.

A stopper plate 141 is provided on the edge of the recessed portion 14 close to the hood portion 12, and the stopper plate 141 is provided opposite to the bridge portion 13. In this embodiment, the limiting plate 141 is perpendicular to the bottom of the recess 14 and has a certain distance from the overlapping part 13, so that the overlapping part 13 is detachably connected to the dust collecting cover body. On the one hand, limiting plate 141 has made things convenient for the front shroud body 1 to be connected with the collection dirt cup can be dismantled, and on the other hand, limiting plate 141 makes things convenient for assemble the motor unit in the casing of dust catcher.

The air collecting portion 11 includes a flat plate 111, an air inlet plate 112 and a rib plate 113, a front end surface of the flat plate 111 is recessed inwards to form a guide groove 114, a through hole is formed in the guide groove 114, an axial air inlet 115 is formed in the air inlet plate 112 along the central axis direction thereof, the air inlet plate 112 is erected on the through hole through the rib plate 113 to form a radial air inlet 116 (the radial air inlet 116 is perpendicular to the central axis of the air inlet plate 112), the air inlet plate 112 is located on the front side (i.e., the side far away from the front cover portion 12) of the guide groove 114, and the radial air inlet 116 is. Specifically, the number N of the ribs 113 is greater than or equal to 2, and two adjacent ribs 113, the air inlet plate 112 and the guide groove 114 form a radial air inlet 116, so that N ribs 113 can form N radial air inlets 116. In this embodiment, the wind collecting portion 11 includes six ribs 113, and six ribs 113, the air inlet plate 112 and the guide groove 114 form six radial air inlets 116.

The intake plate 112 is provided with at least one axial intake opening 115 through which air can flow toward the front housing portion 12 along the central axis of the intake plate 112. Specifically, the axial air inlet 115 includes a central hole, a first annular hole and a second annular hole, wherein the central hole is located in the center of the air inlet plate 112, the first annular hole and the second annular hole are sequentially annularly arranged around the central hole, the central hole is circular, the first annular hole and the second annular hole are fan-shaped, and the center of the fan-shaped ring coincides with the center of the circular hole. In order to ensure the stability and the air inlet quantity of the air inlet plate 112, the areas of the three axial air inlets are sequentially increased according to the central hole, the first annular hole and the second annular hole. In this embodiment, the air inlet plate 112 has a central hole, four first ring-shaped holes, and four second ring-shaped holes.

For the stability of the wind-collecting part 11, the guide groove 114 is located at the center position of the flat plate 111, the through hole is opened at the center position of the guide groove 114, and the ribs 113 are uniformly distributed around the through hole.

In order to prevent the air inlet plate 112 from influencing the air inlet of the radial air inlet 116, the size of the air inlet plate 112 is not larger than that of the through hole, i.e. the projection edge of the air inlet plate 112 towards the through hole cannot far exceed the edge of the through hole, specifically, the shape and size of the air inlet plate 112 are matched with those of the through hole. In this embodiment, the through holes are circular holes, and the air inlet plate 112 is also circular, and the diameters of the through holes and the air inlet plate are the same and the central axes are collinear.

In order to make the gas flow more smoothly to the radial direction wind inlet portion 116, the inner wall of the guide groove 114 is a streamline curved surface, and the streamline direction flows from the flat plate 111 to the through hole. In this embodiment, the inner wall of the guiding groove 114 is an arc-shaped curved surface, that is, the connecting portion of the guiding groove 114 and the flat plate 111 is arc-shaped and transits to the edge of the through hole, further, the whole guiding groove 114 is in the shape of an inward concave hemisphere, and the center of the sphere is located on the central axis of the flat plate 111.

In order not to increase the length of the front cover 1, the ribs 113 and the air inlet 112 are disposed in the guide grooves 114 and do not exceed the plane of the flat plate 111. In this embodiment, the outer end faces of the air inlet panel 112 and the ribs 113 are flush with the outer end face of the flat panel 111.

In order to stabilize the air inlet plate 112 and to make the air inlet of the air collecting portion 11 more smooth and stable, the height of the rib 113 is greater than the thickness of the air inlet plate 112, and the outer end surface of the rib 113 is flush with the air inlet plate 112. Specifically, the rib 113 is a supporting plate similar to a right triangle, the length of a first right-angle surface of the rib 113 is greater than the thickness of the air inlet plate 112, the upper portion (the portion close to the air inlet plate 112) of the first right-angle surface of the rib 113 is connected to the air inlet plate 112, the lower portion (the portion far from the air inlet plate 112) is not connected to the air inlet plate 112, the lower side of the first right-angle surface of the rib 113 is connected to the edge of the through hole, a second right-angle surface of the rib 113 is flush with the outer end surface of the air inlet plate 112, and the inclined surface of the rib 113 is adapted to and connected to the wall surface of the guide groove 114, so that the rib 113 provides stable triangular support for the air inlet plate 112, and the. In this embodiment, the connection surface of the rib 113 and the guide groove 114 is an arc surface, and the second right-angle surface of the rib 113, the outer end surface of the air inlet plate 112 and the outer end surface of the flat plate 111 are flush.

In order to facilitate the gas to be better guided to the air collection portion 11, the edge of the flat plate 111 is provided with a protrusion 117, and the shape of the protrusion 117 is matched with the shape of the flat plate 111, so that a certain gap is left between the air inlet plate 112 of the air collection portion 11 and the dust collection cup body, and the gas flows to the air collection portion 11 smoothly after being dedusted and filtered by the dust collection cup body. In order to prevent the detachable connection between the front cover 1 and the dust cup from being affected, in the present embodiment, the bottom of the recessed portion 14 extends to the front end surface of the flat plate 111, and the bottom of the recessed portion 14 is perpendicular to the flat plate 111, i.e., the recessed portion 14 and the flat plate 111 are through without any separation therebetween, and no protrusion 117 is provided at the joint of the flat plate 111 and the recessed portion 14.

The front cover part 12 is provided with a front end assembly cavity 121 for installing the front end of the motor assembly 2, and the front end assembly cavity 121 is communicated with the through hole, so that the gas flowing through the through hole completely enters the front end assembly cavity 121. Specifically, the front end fitting chamber 121 is constituted by a circular wall surface surrounding the through hole, i.e., the central axis of the front end fitting chamber 121 is collinear with the central axis of the wind collecting part 11, and the diameter of the front end fitting chamber 121 is larger than the hole diameter of the through hole. In this embodiment, the seal sleeve 22 and the front end of the motor 21 are fitted in the front end fitting chamber 121.

The front end assembly chamber 121 is hermetically connected to the sealing sleeve 22, and the air inlet hole 221 corresponds to the through hole, so that the air passing through the through hole of the air collecting portion 11 flows to the motor 21 through the air inlet hole 221.

In order not to increase the overall length of the front cover 1, the back of the guide groove 14 is located in the front end assembly cavity 121, that is, the flat plate 111 is recessed into the front end assembly cavity 121 to form the guide groove 14, specifically, the wall surface of the front end assembly cavity 121 is matched with the edge of the guide groove 14, so that the front end assembly cavity 121 is just covered on the guide groove 14.

The front cover body 1 is detachably connected with the rear cover body 3, and the front end assembly cavity 121 and the rear end assembly cavity 31 together form an assembly cavity for assembling the motor assembly 2. Specifically, the assembly member 122 is disposed on the outer wall surface of the front-end assembly cavity 121, the connecting member 311 adapted to the assembly member 122 is disposed on the outer wall of the rear-end assembly cavity 31, and the front cover 1 and the rear cover 3 are detachably connected together through the assembly member 124 and the connecting member 311. Illustratively, the fitting 124 and the connecting member 311 are detachable connecting structures such as latches, snaps, bolts, and the like.

The process of gas flowing through the motor unit: air enters from the axial air inlet 115 and the radial air inlet 116 of the air collecting part 11 of the front cover body 1, flows to the motor 21 through the through holes and the air inlet holes 221, flows out from the air outlet port of the motor 21, directly flows to the air outlet filter member 24 under the guiding action of the air guide plate 23, is filtered by the air outlet filter member 24, and then is guided out of the motor unit by the air outlet grid part 32.

The motor unit provided by the embodiment can achieve at least one of the following beneficial effects:

(1) the motor is clamped in the motor cover through the front sealing sleeve and the air outlet filtering component, and a rear sealing piece is not needed, so that the fixing mode of the motor is simplified, and the processing cost is reduced;

(2) the air outlet filtering piece is arranged in the motor cover, so that the diameter of the motor unit can be effectively reduced, the volume of the motor unit is reduced, and the overall size of the dust collector is also reduced;

(3) the gas is directly guided to the air outlet filtering piece through the gas guide plate, so that the gas filtering effect is better;

(4) the air is guided for multiple times through the guide grooves, the air guide plates and the air outlet grid parts, so that the air flows more smoothly in the motor unit, the air flow speed can be effectively improved, and the suction force of the dust collector is increased;

(5) the lap joint part is arranged on the front cover body, and a connecting position is additionally arranged for assembling the dust collecting cup body, so that the connecting performance of the dust collecting cup body is improved, and the dust collecting cup body is prevented from falling off from the containing cavity of the dust collecting cup body, so that the normal work of the dust collector is influenced by the falling off of the dust collecting cup body;

(6) the air outlet filtering piece is partially positioned in the rear cover body, and partially positioned in the air outlet grid part, so that the length of the motor unit can be effectively reduced, and the overall length of the dust collector is further reduced.

Example two

The present embodiment provides a vacuum cleaner, as shown in fig. 5 to 10, comprising a motor unit, a discharge assembly 4 and a housing 5 provided in the first embodiment.

The motor unit is installed at the rear end of the shell 5, the air outlet grid part 32 of the motor unit penetrates out of the rear end face of the shell 5, the air exhaust component 4 covers the air outlet grid part 32 and is detachably connected with the rear end face of the shell 5, and air guided out of the air outlet grid part 32 is exhausted to the outside of the dust collector from the air exhaust component 4.

The exhaust assembly 4 comprises an exhaust filtering member 41 and an exhaust hood 42, and an exhaust assembling cavity for assembling the exhaust filtering member 41 is arranged in the exhaust hood 42.

The exhaust filter 41 is provided with a grid assembly cavity 411 capable of accommodating the exhaust grid 32, so that the air guided out from the exhaust grid 32 is filtered by the exhaust filter 41 and then exhausted out of the dust collector. Specifically, the grill assembly chamber 411 is fitted to the air outlet grill portion 32, and in order to reduce the length of the hood 42, the length of the air discharging filter 41 is the same as that of the air outlet grill portion 32. In this embodiment, the exhaust filtering member 41 is made of a cylindrical filtering sponge or a cylindrical filtering HEPA, so that the filtering effect is good and the assembly is convenient.

The exhaust hood 42 is provided with an exhaust port 421 communicated with the exhaust assembly cavity, and the air is filtered by the exhaust filtering element 41 and then is exhausted out of the dust collector from the exhaust port 421. In this embodiment, since the direction of the air guided out by the air outlet grid portion 32 is perpendicular to the central axis of the air outlet grid portion, the air outlet 421 is disposed on the sidewall of the exhaust hood 42, and the position of the air outlet 421 is opposite to the position of the air outlet grid portion 32, so that the air can be smoothly guided out.

The rear end face of the exhaust hood 42 is provided with a nameplate groove 422 for sticking or assembling the nameplate sticker 43. Further, for convenience of pasting and positioning the nameplate sticker, the nameplate groove 422 is internally provided with the positioning portion 423, the nameplate sticker 43 is provided with the positioning groove 431 matched with the positioning portion 423, and the nameplate sticker 43 is positioned through the positioning portion 423 and the positioning groove 431 and then pasted to the nameplate groove 422.

The exhaust hood 42 is detachably connected with the rear end face of the casing 5, and the exhaust hood and the casing are connected in detachable connection modes such as clamping, inserting and screwing. In this embodiment, the rear end surface of the housing 5 is provided with an assembling protrusion 51, the front end surface of the exhaust hood 42 is provided with an assembling groove 424 matched with the assembling protrusion 51, and the exhaust hood 42 is detachably mounted on the rear end surface of the housing 5 through the assembling groove 424 and the assembling protrusion 51.

The dust collector provided by the embodiment further comprises a dust collection cup body 6, wherein the middle part of the shell 5 is provided with a dust collection cup body accommodating cavity for detachably assembling the dust collection cup body 6, and specifically, the shape and the size of the integrated cup body accommodating cavity are matched with those of the integrated cup body 6.

The front end face of the front housing 1 of the motor unit forms the rear wall of the dust cup receptacle, in particular the front housing 12 forms the rear wall of the dust cup receptacle and is in contact with the dust cup body 6, and the overlapping portion 13 is exposed at the top of the housing 5 so as to be detachably connected to the dust cup body 6.

The rear end top of collection dirt cup 6 is equipped with can dismantle the buckling parts 61 of being connected with overlap joint portion 13, and after collection dirt cup 6 was assembled in collection dirt cup appearance chamber, buckling parts 61 can the lock on the overlap joint portion 13 that is located the front shroud body 1 top to a connection position has been add again between collection dirt cup 6 and casing 5, with the relation of being connected between improvement collection dirt cup 6 and the casing 5. Specifically, the fastening portion 61 is provided with an assembly clamping groove, the assembly clamping groove is matched with the protruding overlapping portion 13, and a wall surface of the fastening portion 61 forming the assembly clamping groove is embedded into a gap between the overlapping portion 13 and the recessed portion 14.

The suction pipe 52 of the dust collector is arranged at the front end of the shell 5, air enters the dust collector from the suction pipe 52, flows to the motor component 2 from the air collecting part 11 of the front cover body 1 after being dedusted and filtered by the dust collecting cup body 6, is filtered by the air outlet filtering piece 24, is guided to the air exhaust component 4 from the air outlet grid part 32, and finally is exhausted out of the dust collector from the air outlet 421 of the air exhaust component 4.

Compared with the prior art, the beneficial effects of the vacuum cleaner provided by the embodiment include not only the beneficial effects of the motor unit provided by the first embodiment (which are not described herein again), but also one of the following beneficial effects:

(1) the air is directly guided to the air exhaust filter element through the air outlet grid part, so that the air filtering effect is better;

(2) the air outlet grid part is positioned in the air exhaust assembly, so that the occupied length of the motor unit in the shell can be effectively reduced, and the overall length of the dust collector is further reduced;

(3) the data plate groove at the rear end of the exhaust hood is provided with a positioning part, so that the data plate sticker can be conveniently positioned.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.

Claims (13)

1. A motor unit is characterized by comprising a motor cover and a motor assembly (2) arranged in the motor cover, wherein the motor assembly (2) comprises a motor (21), a sealing sleeve (22), a gas guide plate (23), an air outlet filter member (24) and a motor control plate (25);

the sealing sleeve (22) is wrapped at the air inlet end of the motor (21);

the front end of the gas guide plate (23) is butted with the gas outlet port of the motor (21).

2. The motor unit according to claim 1, wherein the front end of the gas guide plate (23) is hermetically connected with an outlet port of the motor (21);

the air guide plate (23) surrounds the outer side of the air outlet filter piece (24);

the motor control board (25) is positioned at the rear end of the motor (21) and is connected with the motor (21);

the air outlet filtering piece (24) is arranged in a space surrounded by the motor control panel (25), the gas guide plate (23) and the motor cover.

3. The motor unit as claimed in claim 1, characterized in that the outer wall of the sealing sleeve (22) is connected with the motor cover in a sealing manner, and an air inlet hole (221) is formed in the center of the sealing sleeve (22).

4. A motor unit according to any one of claims 1-3, characterised in that the motor housing comprises a front housing (1) and a rear housing (3), the front housing (1) and the rear housing (3) being detachably connected.

5. The motor unit according to claim 4, characterized in that the rear cover (3) is provided with a rear end fitting chamber (31), and the rear end of the motor (21), the motor control board (25), the gas guide plate (23), and the air outlet filter (24) are fitted in the rear end fitting chamber (31).

6. The motor unit according to claim 5, characterized in that the rear end of the rear cover (3) is provided with an air outlet grid part (32), and the air outlet grid part (32) is communicated with the rear end assembly cavity (31).

7. The motor unit according to claim 6, characterized in that the front end of the outlet filter (24) is located inside the rear end fitting chamber (31), and the rear end of the outlet filter (24) is located in the outlet grille (32).

8. The motor unit according to claim 4, characterized in that the front cover (1) comprises a wind-collecting part (11) and a front cover part (12), the front cover part (12) being located at a rear end face of the wind-collecting part (11);

the front cover part (12) is provided with a front end assembly cavity (121), the front ends of the sealing sleeve (22) and the motor (21) are assembled in the front end assembly cavity (121), and the sealing sleeve (22) is in sealing connection with the front end assembly cavity (121);

the wind collecting part (11) is provided with a through hole which is communicated with the front end assembly cavity (121), and the through hole corresponds to an air inlet hole (221) of the sealing sleeve.

9. A vacuum cleaner, characterized in that it comprises a motor unit according to any one of claims 1-8, a ventilation assembly (4) and a housing (5).

10. The vacuum cleaner as claimed in claim 9, wherein the motor unit is mounted at the rear end of the housing (5), and the outlet grille part (32) of the motor unit penetrates out of the rear end surface of the housing (5);

the air exhaust component (4) is covered on the air outlet grid part (32), and the air exhaust component (4) is connected with the rear end face of the shell (5).

11. The vacuum cleaner according to claim 10, wherein the exhaust assembly (4) comprises an exhaust filter element (41) and an exhaust hood (42);

the exhaust hood (42) is provided with an exhaust assembly cavity, and the exhaust filtering piece (41) is assembled in the exhaust assembly cavity;

an air outlet (421) is arranged on the air exhaust cover (42), and the air outlet (421) is communicated with the air exhaust assembly cavity.

12. The vacuum cleaner as claimed in claim 11, wherein a nameplate groove (422) is formed in a rear end surface of the hood (42), and a positioning portion (423) is formed in the nameplate groove (422).

13. A vacuum cleaner according to claim 11, wherein the ventilating filter (41) is provided with a grill fitting chamber (411), and the outlet grill portion (32) is located in the grill fitting chamber (411).

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