CN216649389U - Novel brushless motor of dust collector - Google Patents

Abstract

The application discloses a novel brushless motor of a dust collector, which comprises a fan cover, a movable impeller, a machine shell, a rotor assembly, a rubber-coated stator, a rear bearing seat, a PCB (printed circuit board) driving plate and a PCB rear cover, the casing comprises a shell, a plate body arranged at the end part of the shell and a plurality of static guide vanes annularly arranged on the inner wall of the shell, the center of the plate body is provided with a shaft hole, the plate body extends towards the inside of the shell to form a bearing chamber, the bearing chamber and the shaft hole are concentrically arranged, the plate body extends towards the inside of the shell to form a plurality of stator positioning bosses which are annularly arranged, arc-shaped air guide surfaces facing the center of the plate body are arranged on two sides of the stator positioning boss, the upper part of the static guide vane is obliquely arranged between the plate body and the shell, the lower part of the static guide vane is obliquely arranged between the stator positioning boss and the shell. The utility model provides a novel dust catcher brushless motor has higher heat dispersion and life.

Description

Novel brushless motor of dust collector

Technical Field

The utility model relates to the technical field of dust collector motors, in particular to a novel brushless motor of a dust collector.

Background

The existing dust collector motor is simple in structural design, more in accessories and poor in heat dissipation effect, the heat inside the motor cannot be taken away by high-speed airflow, the temperature rise is increased, and the problems that an enameled wire fails in insulation, a permanent magnet is irreversibly demagnetized, the performance of the whole motor is reduced and the like can be caused by overhigh temperature. Meanwhile, more accessories also have the problems of influence on heat dissipation, complex installation and inconvenient maintenance.

SUMMERY OF THE UTILITY MODEL

An object of this application is to provide a novel dust catcher brushless motor to solve the problem that the inside radiating effect of motor is poor that current dust catcher motor that provides exists among the background art.

In order to achieve the above purpose, the present application provides the following technical solutions: a novel brushless motor of a dust collector comprises a fan cover, a movable impeller, a machine shell, a rotor assembly, an encapsulated stator, a rear bearing seat, a PCB (printed Circuit Board) driving plate and a PCB rear cover which are sequentially connected, wherein the machine shell comprises a shell, a plate body arranged at the end part of the shell and a plurality of static guide vanes annularly arranged on the inner wall of the shell, one side of the shell close to the plate body is provided with a positioning convex ring used for being connected with the fan cover, the center of the plate body is provided with a shaft hole, the plate body extends towards the inside of the machine shell to form a bearing chamber, the bearing chamber and the shaft hole are concentrically arranged, the plate body extends towards the inside of the shell to form a plurality of stator positioning bosses which are annularly arranged, two sides of each stator positioning boss are provided with arc-shaped air guide surfaces facing the center of the plate body, the upper parts of the static guide vanes are obliquely arranged between the plate body and the shell, the lower part of the static guide vane is obliquely arranged between the stator positioning boss and the shell.

Preferably, a sealing gasket is installed between the impeller and the fan housing.

Preferably, a corrugated gasket is arranged at the joint of the rear bearing seat and the encapsulated stator.

Preferably, the number of the static guide vanes is 7-10, and the static guide vanes are arranged at equal intervals.

Preferably, an air guide space which is gradually narrowed is formed from the upper portion to the lower portion of each of the two adjacent stationary guide vanes along the direction from the inner wall of the outer casing to the plate body.

Preferably, the stator positioning bosses are arranged at equal intervals, and the number of the stator positioning bosses is 3-4.

Preferably, the stator positioning boss is provided with a mounting hole for fixing with the stator.

Has the advantages that: the utility model provides a novel dust catcher brushless motor, lid behind fan housing, movable vane, casing, rotor subassembly, rubber coating stator, rear bearing seat, PCB drive plate, the PCB that connect gradually, simple structure, radiating effect are good. The casing includes shell, plate body, static guide vane, shaft hole, bearing chamber, stator location boss, arc wind-guiding face, sets up through the cooperation of arc wind-guiding face and static guide vane, makes the air inside by the water conservancy diversion to reduce the high temperature that the motor is inside to produce, have good radiating effect, improve the efficiency and the life-span of motor.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is an exploded view of the brushless motor of the new vacuum cleaner in the embodiment of the present application;

fig. 2 is a perspective view of a lower housing from a first perspective in an embodiment of the present application;

fig. 3 is a perspective view of a lower housing from a second perspective in an embodiment of the present application.

Reference numerals: 1. a fan housing; 2. a sealing gasket; 3. a movable impeller; 4. a housing; 401. a housing; 402. a plate body; 403. a stationary guide vane; 404. a shaft hole; 405. a bearing chamber; 406. a stator positioning boss; 407. an arc-shaped air guide surface; 408. mounting holes; 409. positioning the convex ring; 5. a rotor assembly; 6. encapsulating the stator; 7. a corrugated washer; 8. a rear bearing seat; 9. a PCB drive board; 10. and a PCB rear cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1, the brushless motor for a vacuum cleaner comprises a fan housing 1, a movable impeller 3, a casing 4, a rotor assembly 5, a rubber-coated stator 6, a rear bearing seat 8, a PCB drive board 9, and a PCB rear cover 10, which are connected in sequence, wherein a sealing gasket 2 is installed between the movable impeller 3 and the fan housing 1, and a corrugated gasket 7 is installed at the joint of the rear bearing seat 8 and the rubber-coated stator 6. The fan housing 1, the sealing washer 2, the movable impeller 3, the rotor assembly 5, the corrugated washer 7, the rear bearing seat 8, the PCB driving board 9 and the PCB rear cover 10 can be any one of the prior art and can be connected with each other in a connecting mode in the prior art. In the prior art, a common motor structure is that a stator is formed by assembling an upper framework, a lower framework and an iron core into a whole and then winding a wire to form the stator, and the assembling mode often needs one or two persons to cooperate to complete the installation procedure, and the framework is easily separated from the iron core in the process that the upper framework and the lower framework are installed on the iron core and then the iron core is transported to the next procedure, or silicon steel sheets are scattered due to poor quality of iron core riveting points, so that installation personnel in the next procedure need to re-install the separated framework, and the production efficiency is reduced. In this embodiment, the upper frame, the lower frame and the iron core are directly molded together to form the encapsulated stator 6, so that the labor cost on a production line can be reduced, and the phenomenon that the upper frame and the lower frame are directly separated from the iron core due to carrying can be reduced.

Meanwhile, in the prior art, the air duct design of a plurality of dust collector motor shells is that air is directly guided away, and the air cannot be guided into the motor, so that high temperature generated in the motor during high-speed operation cannot be dissipated, and the heat cannot be dissipated to influence the efficiency and the service life of the motor, namely, the dust collector motor shell in the prior art has the problem of poor heat dissipation effect. In view of this problem, in the present embodiment, as shown in fig. 2 and 3, the housing 4 includes a housing 401, a plate body 402 mounted on an end portion of the housing 401, the guide vane structure comprises a plurality of static guide vanes 403 annularly arranged on the inner wall of a shell 401, a positioning convex ring 409 used for being connected with a fan cover 1 is arranged on one side, close to a plate body 402, of the shell 401, a shaft hole 404 is arranged in the center of the plate body 402, a bearing chamber 405 is formed in the plate body 402 in an extending mode towards the inside of a machine shell 4, the bearing chamber 405 and the shaft hole 404 are concentrically arranged, a plurality of stator positioning bosses 406 arranged in an annular mode are formed in the plate body 402 in an extending mode towards the inside of the shell 401, arc-shaped air guide surfaces 407 towards the center of the plate body 402 are arranged on two sides of each stator positioning boss 406, the upper portions of the static guide vanes 403 are obliquely arranged between the plate body 402 and the shell 401, and the lower portions of the static guide vanes 403 are obliquely arranged between the stator positioning bosses 406 and the shell 401. The casing 401, the plate body 402, the static guide vane 403, the bearing chamber 405, the stator positioning boss 406, the arc-shaped air guide surface 407 and the positioning convex ring 409 are integrally formed. Through the setting of arc wind-guiding surface 407, when static guide vane 403 wind-guiding, arc wind-guiding surface 407 is inside with the wind direction of a part to the motor to dispel the heat to the inside magnet steel of motor and enameled wire, make the inside heat that produces of motor dispel, ensure and improve the work efficiency and the life of motor.

In this embodiment, the number of the stationary guide vanes 403 is 9, the 9 stationary guide vanes 403 are arranged at equal intervals, and a gradually narrowed air guiding space is formed from the upper portion to the lower portion of each two adjacent stationary guide vanes 403 along the direction from the inner wall of the housing 401 to the plate 402. The number of stator location boss 406 is 3, and individual stator location boss 406 equidistant setting, be provided with on the stator location boss 406 be used for with the fixed mounting hole 408 of stator, the magnet steel passes through the screw spiro union to be installed in mounting hole 408.

The standard parts used in the application document can be purchased from the market, and can be customized according to the description of the specification and the description of the attached drawings, the specific connection mode of each part can be conventional means such as mature bolts, rivets, welding, clamping and the like in the prior art, and each part can be of a conventional type in the prior art.

It should be noted that the term "comprises/comprising" is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims (7)

1. A novel brushless motor of a dust collector is characterized by comprising a fan cover (1), a movable impeller (3), a machine shell (4), a rotor assembly (5), a rubber-coated stator (6), a rear bearing seat (8), a PCB (printed circuit board) driving plate (9) and a PCB rear cover (10) which are sequentially connected, wherein the machine shell (4) comprises a shell (401), a plate body (402) arranged at the end part of the shell (401) and a plurality of static guide vanes (403) annularly arranged on the inner wall of the shell (401), one side of the shell (401) close to the plate body (402) is provided with a positioning convex ring (409) used for being connected with the fan cover (1), the center of the plate body (402) is provided with a shaft hole (404), the plate body (402) extends towards the inside of the machine shell (4) to form a bearing chamber (405), and the bearing chamber (405) and the shaft hole (404) are concentrically arranged, the plate body (402) orientation the inside extension of shell (401) is formed with a plurality of stator location bosss (406) that are the annular setting, the both sides of stator location boss (406) are provided with the orientation arc wind guide surface (407) at plate body (402) center, the upper portion slope of static guide vane (403) set up in plate body (402) with between shell (401), the lower part slope of static guide vane (403) set up in stator location boss (406) with between shell (401).

2. The brushless motor for a vacuum cleaner as claimed in claim 1, wherein a sealing gasket (2) is installed between the impeller (3) and the fan housing (1).

3. The new vacuum cleaner brushless motor according to claim 1, characterized in that a corrugated washer (7) is installed at the junction of the rear bearing block (8) and the encapsulated stator (6).

4. The brushless motor for a vacuum cleaner as claimed in claim 1, wherein the number of the stationary guide vanes (403) is 7-10, and a plurality of the stationary guide vanes (403) are arranged at equal intervals.

5. The brushless motor for a vacuum cleaner as claimed in claim 4, wherein the upper portion to the lower portion of two adjacent stationary guide vanes (403) form a gradually narrowing air guiding space along the direction from the inner wall of the housing (401) to the plate body (402).

6. The brushless motor for the vacuum cleaner as claimed in claim 1, wherein the plurality of stator positioning bosses (406) are arranged at equal intervals, and the number of the stator positioning bosses (406) is 3-4.

7. The brushless motor for a vacuum cleaner as claimed in claim 6, wherein the stator positioning boss (406) is provided with a mounting hole (408) for fixing with a stator.

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