CN219287264U

CN219287264U - Motor for dust collector

Info

Publication number: CN219287264U
Application number: CN202320121637.0U
Authority: CN
Inventors: 余勋灿; 刘春建; 郭鹏; 林李健; 袁林; 王世年
Original assignee: Huizhou Longde Technology Co ltd
Current assignee: Huizhou Longde Technology Co ltd
Priority date: 2023-01-30
Filing date: 2023-01-30
Publication date: 2023-06-30
Anticipated expiration: 2033-01-30

Abstract

The utility model discloses a motor for a dust collector, which comprises a stator and a rotor; the rotor comprises a rotating shaft, a front cover, a shell, an extension part, magnets and a magnet seat, wherein the front cover is connected with the rotating shaft, the shell is connected with the front cover, the magnet seat is arranged in the shell, the magnet seat is provided with a plurality of ribs, the plurality of magnets are respectively adhered to the inner wall of the shell, and the ribs separate two adjacent magnets; the stator comprises a base, an iron core, a bearing, enameled wires and a circuit board, wherein the base is provided with a central column, the central column is hollow, a rotating shaft is fixed in the central column, the circuit board is sleeved outside the central column and is arranged on the base, and the iron core is arranged on the periphery of the central column; the circuit board has the interval between iron core, and the casing is close to the one end of base and is connected with the extension, and the extension encircles in interval periphery. According to the motor for the dust collector, the extension part is arranged on the shell and surrounds the periphery of the interval, so that the interval is closed, and the phenomenon that foreign matters are involved in the motor to cause interference and dead halt in the motor when the dust collector cleans the dust is avoided.

Description

Motor for dust collector

Technical Field

The utility model relates to the field of motor components, in particular to a motor for a dust collector.

Background

The dust collector mainly comprises three parts of dust generation, dust collection and dust filtration, and generally comprises a series excited rectifier motor, a centrifugal fan, a dust filter (bag) and a dust collection accessory. The power of a typical vacuum cleaner is 400-1000W or more, and the power of a portable vacuum cleaner is typically 250W or less. The dust collector can remove dust and is mainly characterized in that an electric exhaust fan is arranged on the head part of the dust collector. The rotating shaft of the exhaust fan is provided with a fan blade wheel, after the power is on, the exhaust fan can generate higher suction force and pressure at the rotating speed of 500 circles per second, under the action of the suction force and the pressure, air is discharged at high speed, and the air in the fan is continuously supplemented by the air in the dust suction part at the front end of the fan, so that the interior of the dust collector generates instant vacuum, and negative pressure difference is formed between the air and the external atmospheric pressure, and the air containing dust is sucked under the action of the negative pressure difference. The dust and other impurities enter the dust filtering bag sequentially through the carpet or floor brush, the long connecting pipe, the bent pipe, the hose and the hose joint, the dust and other impurities are retained in the dust filtering bag, and the air is discharged from the tail of the machine body after being purified by the filter disc. When the existing dust collector cleans the sanitation, foreign matters are easy to be involved in the motor, so that the motor is halted.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides a motor for a dust collector, which solves the problem that foreign matters are easy to be involved into the motor and cause the motor to crash when the traditional dust collector cleans.

The utility model provides a motor for a dust collector, which comprises a stator and a rotor rotating relative to the stator;

the rotor comprises a rotating shaft, a front cover, a shell, an extension part, a plurality of magnets and a magnet seat, wherein the front cover is connected with the rotating shaft, the shell is connected with the front cover, the magnet seat is arranged in the shell, the magnet seat is provided with a plurality of ribs, the plurality of magnets are respectively adhered to the inner wall of the shell, and the ribs separate two adjacent magnets;

the stator comprises a base, an iron core, a bearing, an enameled wire and a circuit board, wherein the base is provided with a central column, the central column is hollow, a rotating shaft is fixed in the central column through the bearing, an inner ring of the bearing is connected with the rotating shaft, an outer ring of the bearing is connected with the central column, the circuit board is sleeved outside the central column and is arranged on the base, the iron core is arranged on the periphery of the central column, the enameled wire is wound on the pole part of the iron core and is electrically connected with the circuit board, and a plurality of magnets are positioned on the periphery of the iron core;

the circuit board has the interval between iron core, and the casing is close to the one end of base and is connected with the extension, and the extension encircles in interval periphery.

Further, the inner wall of the shell is provided with a protruding part, and a step is formed between the protruding part and the extending part.

Further, a projection of the extension in the vertical direction at least partially overlaps a projection of the base in the vertical direction.

Further, the extension is located at the periphery of the base, and the extension covers at least one third of the peripheral area of the base.

Further, the roughness of the outer surface of the shell is Ra1.6Max.

Further, the roughness of the inner surface of the shell is Ra4.0-Ra12.5.

Further, the iron core comprises a core shaft, the center column penetrates through the core shaft, a plurality of pole parts are uniformly arranged on the periphery of the core shaft, a wire winding groove is formed between two adjacent pole parts, and the enameled wire is wound on the pole parts.

Further, the total number of the poles is 12.

Further, the number of magnets is 14.

Compared with the prior art, the motor for the dust collector has the advantages that the extension part is arranged on the shell and surrounds the periphery of the interval, so that the interval is closed, and the phenomenon that foreign matters are involved in the motor to cause the motor to crash when the dust collector cleans the dust is avoided.

The roughness of the outer surface of the existing motor shell is generally more than Ra2.0, two friction abnormal sounds can be generated when the brush head arranged on the surface of the motor is taken and installed, the user experience feel is poor, and the roughness of the outer surface of the shell is Ra1.6Max, so that the friction abnormal sounds can be greatly reduced.

The roughness of the inner surface of the shell of the existing motor is generally Ra1.6-Ra3.2, so that the brushless motor has resonance noise at 2000-4500 rpm, the use feeling of a user is poor, and the roughness of the inner surface of the shell is Ra4.0-Ra12.5, so that the resonance noise can be avoided.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.

Fig. 1 is a schematic view of the motor for the vacuum cleaner according to the present utility model.

Fig. 2 is an exploded view of the motor for the vacuum cleaner of the present utility model.

Fig. 3 is a front view of the motor for the vacuum cleaner of the present utility model.

Fig. 4 is a cross-sectional view taken along line A-A of fig. 3.

Fig. 5 is a plan view of the motor for the vacuum cleaner of the present utility model.

Fig. 6 is a cross-sectional view taken along line B-B of fig. 5.

The rotary shaft 11, the front cover 12, the housing 13, the protruding portion 131, the step 132, the extension portion 14, the magnet 2, the magnet holder 3, the rib 31, the base 41, the iron core 42, the core shaft 421, the pole 422, the bearing 43, the enameled wire 44, the circuit board 45 and the center post 46.

Detailed Description

In order that the utility model may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings. It will be understood that when an element is referred to as being "fixed" to another element, it can be directly on the other element or one or more intervening elements may be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The terms "upper", "lower", "left", "right", "inner", "outer" and the like are used in this specification for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.

Examples

As shown in fig. 1 to 6, the present embodiment provides a motor for a vacuum cleaner, including a stator and a rotor rotating relative to the stator;

the rotor comprises a rotating shaft 11, a front cover 12, a shell 13, an extension part 14, a plurality of magnets 2 and a magnet seat 3, wherein the front cover is connected with the rotating shaft, the shell is connected with the front cover, the magnet seat is arranged in the shell, the magnet seat is provided with a plurality of ribs 31, the plurality of magnets are respectively adhered to the inner wall of the shell, and the ribs separate two adjacent magnets;

the stator comprises a base 41, an iron core 42, a bearing 43, an enameled wire 44 and a circuit board 45, wherein the base is provided with a central column 46, the central column is hollow, a rotating shaft is fixed in the central column through the bearing, an inner ring of the bearing is connected with the rotating shaft, an outer ring of the bearing is connected with the central column, the circuit board is sleeved outside the central column and is arranged on the base, the iron core is arranged on the periphery of the central column, the enameled wire is wound on the pole part of the iron core and is electrically connected with the circuit board, and a plurality of magnets are positioned on the periphery of the iron core;

According to the motor for the dust collector, the extension part is arranged on the shell and surrounds the periphery of the interval, so that the interval is closed, and the phenomenon that foreign matters are involved in the motor to cause the motor to crash when the dust collector cleans is avoided.

In one embodiment, the inner wall of the housing is provided with a bulge 131, between which a step 132 is formed. The step plays a role of stopping foreign matters and further limiting the foreign matters from being involved in the motor.

In one embodiment, the projection of the extension in the vertical direction at least partially overlaps the projection of the base in the vertical direction. The gap is formed between the extension part and the base, and the foreign matters can only enter the motor through the gap between the extension part and the base, so that the difficulty of entering the motor is greatly increased.

In one embodiment, the extension is located at the periphery of the base, the extension covering at least one third of the area of the periphery of the base. Further extending the length of the gap, making it difficult for foreign matter to enter the motor through the gap.

In one embodiment, the roughness of the outer surface of the housing is Ra1.6. The roughness of the outer surface of the existing motor shell is generally more than Ra2.0, two friction abnormal sounds can be generated when the brush head arranged on the surface of the motor is taken and installed, the user experience feel is poor, and the roughness of the outer surface of the shell is Ra1.6, so that friction noise can be greatly reduced.

In one embodiment, the roughness of the inner surface of the housing is Ra4.0-Ra12.5. The roughness of the inner surface of the shell of the existing motor is generally Ra1.6-Ra3.2, so that the brushless motor has resonance noise at 2000-4500 rpm, the use feeling of a user is poor, and the roughness of the inner surface of the shell is Ra4.0-Ra12.5, so that the friction noise can be greatly reduced.

In one embodiment, the iron core includes a core shaft 421, a central column penetrates through the core shaft, a plurality of pole portions 422 are uniformly arranged on the periphery of the core shaft, a winding groove is formed between two adjacent pole portions, and the enamelled wire is wound on the pole portions.

In one embodiment, there are 12 total poles.

In one embodiment, the magnets have a total of 14 blocks.

It should be noted that the description of the present utility model and the accompanying drawings illustrate preferred embodiments of the present utility model, but the present utility model may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, which are not to be construed as additional limitations of the utility model, but are provided for a more thorough understanding of the present utility model. The above-described features are further combined with each other to form various embodiments not listed above, and are considered to be the scope of the present utility model described in the specification; further, modifications and variations of the present utility model may be apparent to those skilled in the art in light of the foregoing teachings, and all such modifications and variations are intended to be included within the scope of this utility model as defined in the appended claims.

Claims

1. The motor for the dust collector is characterized by comprising a stator and a rotor rotating relative to the stator;

2. The motor of claim 1, wherein the inner wall of the housing is provided with a protrusion, and a step is formed between the protrusion and the extension.

3. A motor for a vacuum cleaner according to claim 1, wherein the projection of the extension in the vertical direction at least partially overlaps the projection of the base in the vertical direction.

4. A motor for a vacuum cleaner according to claim 1, wherein the extension is located at the outer periphery of the base, and the extension covers at least one third of the area of the outer periphery of the base.

5. The motor for a vacuum cleaner according to claim 1, wherein the roughness of the outer surface of the housing is ra1.6 Max.

6. A motor for a vacuum cleaner according to claim 1, wherein the roughness of the inner surface of the housing is ra4.0-ra12.5.

7. The motor for a vacuum cleaner according to claim 1, wherein the core includes a core shaft, the core shaft penetrates through the core shaft, a plurality of pole portions are uniformly arranged on the periphery of the core shaft, a winding groove is formed between two adjacent pole portions, and the enameled wire is wound on the pole portions.

8. A motor for a vacuum cleaner according to claim 1, wherein the total number of the pole portions is 12.

9. The motor for a vacuum cleaner according to claim 1, wherein the total of 14 magnets is defined.