阅读说明：本技术 一种自清洁式永磁同步电机 (Self-cleaning permanent magnet synchronous motor ) 是由 宋江峰 郭家虎 王宾 于 2020-05-29 设计创作，主要内容包括：本发明公开了一种自清洁式永磁同步电机,在所述机壳内部靠近所述后端盖一侧设置有连接与所述机壳内壁密封连接的隔板,所述输出轴的端部固定有用于送风散热的风扇,且在所述机壳的外部安装有连通所述机壳内部的清洁筒,所述清洁筒内设置有清洁机构,在所述机壳下部设置有用于输出热气的散热端；该电机通过设置的清洁筒以及固定在清洁筒中的密封件和密封滑动设置在清洁筒中的滤芯可对排入到机壳中的空气进行过滤清洁,且在当滤芯发生堵塞时可通过弹性连接的滤芯让位自动将清洁筒的前部与排灰端连通,并配合清洁机构中的毛刷对滤芯进行清洁,清洁下的灰尘通过排灰端自动排出,使得滤芯重新保持通畅,在滤芯通畅后自动关闭排灰端,继续导气散热。(The invention discloses a self-cleaning permanent magnet synchronous motor.A partition plate which is connected with the inner wall of a shell in a sealing way is arranged at one side of the inner part of the shell, which is close to a rear end cover, a fan for supplying air and dissipating heat is fixed at the end part of an output shaft, a cleaning cylinder communicated with the inner part of the shell is arranged at the outer part of the shell, a cleaning mechanism is arranged in the cleaning cylinder, and a heat dissipation end for outputting hot air is arranged at the lower part of the shell; this motor can filter the air of discharging into the casing through the clean section of thick bamboo that sets up and the sealing member of fixing in clean section of thick bamboo and the filter core of sealed slip setting in clean section of thick bamboo, and accessible elastic connection's filter core lets the automatic front portion and the ash end intercommunication of discharging of a clean section of thick bamboo when the filter core takes place to block up, and brush in the clean mechanism of cooperation cleans the filter core, the dust under the cleanness is through discharging ash end automatic discharge, make the filter core keep unobstructed again, self-closing row ash end after the filter core is unobstructed, continue the air guide heat dissipation.)

1. A self-cleaning permanent magnet synchronous motor comprises a machine shell (1), a rear end cover (2) which is arranged at the rear end of the machine shell (1) and is provided with a honeycomb-shaped air hole, a front end cover (3) which is arranged at the front end of the machine shell (1), a stator core (8) which is fixed on the inner wall of the machine shell (1), a rotor core (10) which is arranged at the center of the inner part of the machine shell (1), a three-phase winding (9) which is arranged between the rotor core (10) and the stator core (8) and an output shaft (6) which is rotatably connected with the front end cover (3) and penetrates through and fixes the rotor core (10), and is characterized in that,

casing (1) inside is close to rear end cap (2) one side be provided with connect with casing (1) inner wall sealing connection's baffle (7), output shaft (6) pass baffle (7) and pass through bearing rotation sealing connection with it the end fixing of output shaft (6) has fan (11) that are used for the air supply radiating, and the externally mounted of casing (1) has the intercommunication the inside clean section of thick bamboo (6) of casing (1), be provided with clean mechanism in clean section of thick bamboo (6) casing (1) lower part is provided with heat dissipation end (19) that are used for exporting steam.

2. A self-cleaning permanent magnet synchronous machine according to claim 1, characterized in that a sealing member (15) and a filter element (17) which is arranged in the cleaning cylinder (4) in a sealing and sliding manner are fixedly arranged in the cleaning cylinder (4), the sealing member (15) and the filter element (17) partition the interior of the cleaning cylinder (4) into three relatively sealed spaces, namely a front part close to the front end cover (3), a rear part close to the rear end cover (2) and a middle part between the front part and the rear part;

the cleaning cylinder (4) is fixed with the machine shell (1) through a guide pipe (13), and the guide pipe (13) is communicated with the rear part of the cleaning cylinder (4) and the rear space in the machine shell (1).

3. A self-cleaning permanent magnet synchronous machine according to claim 2, characterized in that the front part and the rear part in the cleaning cylinder (4) are communicated with each other through an input pipe (16), the middle part in the cleaning cylinder (4) is communicated with the front space in the machine shell (1) through an output pipe (18), and an ash discharging end (23) for discharging dust is arranged on the outer wall of the cleaning cylinder (4);

the filter core (17) adopt soft rubber material to make, evenly set up a plurality of filtration pores (25) that are used for supplying the air to pass through on filter core (17), the edge of filter core (17) with the sealed sliding connection of inner wall of a clean section of thick bamboo (4).

4. A self-cleaning type permanent magnet synchronous motor according to claim 3, wherein said cleaning mechanism comprises a rotating shaft (14) rotatably disposed inside said cleaning cylinder (4), a belt (12) for connecting said rotating shaft (14) and said output shaft (6), and a brush (24) fixed at the front end of said rotating shaft (14), a plurality of soft and thin bristles are uniformly arranged at the front part of said brush (24), and said brush (24) faces said filter element (17).

5. A self-cleaning permanent magnet synchronous machine according to claim 4, characterized in that the belt (12) passes through the conduit (13) and is connected with the rotating shaft (14), the rotating shaft (14) passes through the sealing member (15) and is connected with the sealing member in a sealed and rotating manner through a bearing, the filter element (17) is connected with the inner wall of the cleaning cylinder (4) through an elastic component, and the dust discharge end (23) is attached to the side wall of the filter element (17).

6. A self-cleaning permanent magnet synchronous machine according to claim 5, characterized in that the elastic assembly comprises a socket (22) fixed on the inner wall of the cleaning cylinder (4), a telescopic rod (20) parallel to the axis of the cleaning cylinder (4) and slidably engaged with the socket (22), and a spring (21) for elastically connecting the telescopic rod (20) and the socket (22);

wherein the end of the telescopic rod (20) is fixed with the filter element (17).

7. The self-cleaning permanent magnet synchronous motor according to any one of claims 1 to 6, wherein a wire holder electrically connected with the three-phase winding (9) through a conducting wire is arranged outside the machine shell (1), a hoisting ring convenient for hoisting is fixedly welded on the outer wall of the rear part of the machine shell (1), and a detachable sealing mouth is installed on the heat dissipation end (19).

Technical Field

The invention relates to mechanical equipment, in particular to a self-cleaning permanent magnet synchronous motor.

Background

The permanent magnet synchronous motor is mainly composed of a stator, a rotor, an end cover and the like, wherein the stator is formed by laminating laminations to reduce iron loss generated when the motor operates, and a three-phase alternating current winding, namely an armature, is arranged in the stator. The rotor may be made in solid form or may be pressed from laminations which carry the permanent magnet material.

When the three-phase rotating magnetic field generator works, when three-phase symmetric current is introduced to the stator side, the three-phase stator current has a phase difference of 120 in the spatial position, so that the three-phase stator current generates a rotating magnetic field in the space, the rotor rotates under the action of electromagnetic force to move, and at the moment, electric energy is converted into kinetic energy.

At present, most of existing permanent magnet synchronous motors are internally provided with a fan for heat dissipation, but because of no cleaning function, a large amount of dust is easily accumulated inside the permanent magnet synchronous motors after the permanent magnet synchronous motors are used for a long time, and the service lives of the motors are short.

Disclosure of Invention

Based on the defects in the prior art mentioned in the background art, the invention provides the self-cleaning permanent magnet synchronous motor.

The invention overcomes the technical problems by adopting the following technical scheme, and specifically comprises the following steps:

a self-cleaning permanent magnet synchronous motor comprises a shell, a rear end cover which is arranged at the rear end of the shell and is provided with honeycomb-shaped air holes, a front end cover which is arranged at the front end of the shell, a stator core which is fixed on the inner wall of the shell, a rotor core which is arranged at the center in the shell, a three-phase winding which is arranged between the rotor core and the stator core, and an output shaft which is rotatably connected with the front end cover and penetrates through and fixes the rotor core;

the inner portion of the shell is close to one side of the rear end cover, a partition plate is connected with the inner wall of the shell in a sealing mode, the output shaft penetrates through the partition plate and is connected with the partition plate in a rotating and sealing mode through a bearing, a fan used for air supply and heat dissipation is fixed to the end portion of the output shaft, a cleaning cylinder communicated with the outer portion of the shell is arranged inside the shell, a cleaning mechanism is arranged in the cleaning cylinder, and a heat dissipation end used for outputting hot air is arranged on the lower portion of the shell.

As a further scheme of the invention: the cleaning cylinder is internally and fixedly provided with a sealing element and a filter element which is arranged in the cleaning cylinder in a sealing and sliding manner, and the sealing element and the filter element divide the interior of the cleaning cylinder into three relatively sealed spaces, namely a front part close to the front end cover, a rear part close to the rear end cover and a middle part between the front part and the rear part;

the cleaning cylinder is fixed with the machine shell through a guide pipe, and the guide pipe is communicated with the rear part of the cleaning cylinder and the rear space in the machine shell.

As a still further scheme of the invention: the front part and the rear part in the cleaning cylinder are communicated through an input pipe, the middle part in the cleaning cylinder is communicated with the front space in the machine shell through an output pipe, and the outer wall of the cleaning cylinder is provided with a dust discharging end for discharging dust;

the filter core adopts soft rubber material to make, evenly set up a plurality of filtration pores that are used for supplying the air to pass through on the filter core, the edge of filter core with the sealed sliding connection of inner wall of a clean section of thick bamboo.

As a still further scheme of the invention: clean mechanism is including rotating the setting and being in clean section of thick bamboo inside pivot, be used for connecting the pivot with the belt of output shaft and fixing the brush of pivot front end, brush front portion evenly is provided with a plurality of thin soft brush hairs, the brush is just right the filter core.

As a still further scheme of the invention: the belt passes pipe connection the pivot, the pivot is passed the sealing member passes through bearing seal rotation with it and is connected, just the filter core passes through elastic component and connects the inner wall of a clean section of thick bamboo, arrange the laminating of grey end the lateral wall of filter core.

As a still further scheme of the invention: the elastic assembly comprises a sleeve seat fixed on the inner wall of the cleaning cylinder, a telescopic rod parallel to the axis of the cleaning cylinder and in sliding fit with the sleeve seat, and a spring used for elastically connecting the telescopic rod with the sleeve seat;

the end part of the telescopic rod is fixed with the filter element.

As a still further scheme of the invention: the outside of casing is provided with through wire electric connection the connection terminal of three-phase winding fixed welding has the hoist and mount ring of the handling of being convenient for on the rear portion outer wall of casing, just is in install the detachable seal on the heat dissipation end.

After adopting the structure, compared with the prior art, the invention has the following advantages: this motor can filter the air of discharging into the casing through the clean section of thick bamboo that sets up and the sealing member of fixing in clean section of thick bamboo and the filter core of sealed slip setting in clean section of thick bamboo, and accessible elastic connection's filter core lets the automatic front portion and the ash end intercommunication of discharging of a clean section of thick bamboo when the filter core takes place to block up, and brush in the clean mechanism of cooperation cleans the filter core, the dust under the cleanness is through discharging ash end automatic discharge, make the filter core keep unobstructed again, self-closing row ash end after the filter core is unobstructed, continue the air guide heat dissipation.

Drawings

Fig. 1 is an overall front view of a self-cleaning permanent magnet synchronous motor.

Fig. 2 is a schematic diagram of the internal structure of the self-cleaning permanent magnet synchronous motor.

FIG. 3 is a schematic structural diagram of a cleaning cylinder and a cleaning mechanism in the self-cleaning permanent magnet synchronous motor.

Fig. 4 is a schematic structural diagram of a filter element and a filter hole in the self-cleaning permanent magnet synchronous motor.

In the figure: 1-a machine shell; 2-rear end cap; 3-front end cover; 4-a cleaning cylinder; 5-mounting a base; 6-an output shaft; 7-a separator; 8-a stator core; 9-three-phase winding; 10-a rotor core; 11-a fan; 12-a belt; 13-a catheter; 14-a rotating shaft; 15-a seal; 16-an input tube; 17-a filter element; 18-an output pipe; 19-heat dissipation end; 20-a telescopic rod; 21-a spring; 22-a socket; 23-ash discharge end; 24-a brush; 25-filtration pore.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

In addition, an element of the present invention may be said to be "fixed" or "disposed" to another element, either directly on the other element or with intervening elements present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Referring to fig. 1 to 4, in the embodiment of the present invention, a self-cleaning permanent magnet synchronous motor includes a housing 1, a rear end cover 2 installed at a rear end of the housing 1 and having honeycomb-shaped air holes, a front end cover 3 installed at a front end of the housing 1, a stator core 8 fixed on an inner wall of the housing 1, a rotor core 10 arranged at a center inside the housing 1, a three-phase winding 9 arranged between the rotor core 10 and the stator core 8, and an output shaft 6 rotatably connected to the front end cover 3 and penetrating and fixing the rotor core 10;

a partition plate 7 connected with the inner wall of the machine shell 1 in a sealing manner is arranged on one side, close to the rear end cover 2, in the machine shell 1, the output shaft 6 penetrates through the partition plate 7 and is connected with the partition plate through a bearing in a rotating and sealing manner, a fan 11 for air supply and heat dissipation is fixed at the end part of the output shaft 6, a cleaning cylinder 6 communicated with the interior of the machine shell 1 is arranged outside the machine shell 1, a cleaning mechanism is arranged in the cleaning cylinder 6, and a heat dissipation end 19 for outputting hot air is arranged at the lower part of the machine shell 1;

when the three-phase winding 9 is electrified, the output shaft 6 is driven to rotate under the action of the stator core 8 and the rotor core 10, the output shaft 6 drives the fan 11 to rotate, outside air is discharged into the rear space in the machine shell 1 through the honeycomb-shaped air holes in the rear end cover 2, then is sent into the cleaning cylinder 4 through the rear space in the machine shell 1, is cleaned by the cleaning mechanism and then is sent into the front space in the machine shell 1 to dissipate heat of the output shaft 6, the stator core 8, the three-phase winding 9 and the rotor core 10, and the heat is discharged through the heat dissipation end 19.

In one embodiment of the invention, a sealing element 15 and a filter element 17 which is arranged in the cleaning cylinder 4 in a sealing and sliding manner are fixedly arranged in the cleaning cylinder 4, and the sealing element 15 and the filter element 17 divide the interior of the cleaning cylinder 4 into three relatively sealed spaces, namely a front part close to the front end cover 3, a rear part close to the rear end cover 2 and a middle part between the front part and the rear part;

the cleaning cylinder 4 is fixed with the machine shell 1 through a conduit 13, and the conduit 13 is communicated with the rear part of the cleaning cylinder 4 and the rear space in the machine shell 1;

the air sucked from the honeycomb-shaped air holes in the rear end cover 2 is conveniently filtered through the three mutually closed spaces, and particulate objects such as dust and the like in the sucked air are removed, so that the situation that the air is directly discharged into the machine shell 1 to cause interference and even damage to the internal output shaft 6, the stator core 8, the three-phase winding 9 and the rotor core 10 is avoided.

In another embodiment of the present invention, the front part and the rear part inside the cleaning cylinder 4 are communicated with each other through an input pipe 16, the middle part inside the cleaning cylinder 4 is communicated with the front space inside the cabinet 1 through an output pipe 18, and an ash discharge end 23 for discharging dust is provided on the outer wall of the cleaning cylinder 4;

the filter element 17 is made of soft rubber, a plurality of filter holes 25 for air to pass through are uniformly formed in the filter element 17, and the edge of the filter element 17 is in sealing sliding connection with the inner wall of the cleaning barrel 4;

air is sent to the rear part of the cleaning cylinder 4 through the guide pipe 13, then is discharged into the front part of the cleaning cylinder 4 through the input pipe 16, enters the middle part of the cleaning cylinder 4 after being filtered by the filter element 17, and finally is discharged into the front space in the machine shell 1 through the output pipe 18, so that the output shaft 6, the stator iron core 8, the three-phase winding 9 and the rotor iron core 10 are cooled, and hot air is discharged through the heat dissipation end 19.

In another embodiment of the present invention, the cleaning mechanism comprises a rotating shaft 14 rotatably disposed inside the cleaning cylinder 4, a belt 12 for connecting the rotating shaft 14 and the output shaft 6, and a brush 24 fixed at the front end of the rotating shaft 14, the front part of the brush 24 is uniformly provided with a plurality of fine and soft bristles, and the brush 24 faces the filter element 17;

when the output shaft 6 rotates, the rotating shaft 14 is driven by the belt 12 to rotate, and the brush 24 is driven to rotate synchronously, so that the filter element 17 is cleaned when the filter element 17 is blocked.

In another embodiment of the present invention, the belt 12 passes through the conduit 13 and is connected to the rotating shaft 14, the rotating shaft 14 passes through the sealing member 15 and is connected with the sealing member in a sealed and rotating manner through a bearing, the filter element 17 is connected with the inner wall of the cleaning cylinder 4 through an elastic component, and the dust discharging end 23 is attached to the side wall of the filter element 17;

when the filter holes 25 in the filter element 17 are unobstructed, the ash discharge end 23 is attached to the side wall of the filter element 17, the rotating fan 11 is discharged into the rear space in the casing 1 through the honeycomb-shaped air holes on the rear end cover 2, enters the rear part of the cleaning cylinder 4 through the guide pipe 12, is discharged into the front part of the cleaning cylinder 4 through the input pipe 16, and the clean air filtered by the filter element 17 enters the middle part of the cleaning cylinder 4 and is sent into the front space in the casing 1 through the output pipe 18;

when the filtration pore 25 in the filter core 17 takes place to block up, the atmospheric pressure increase in the clean 4 front portions of a section of thick bamboo, make filter core 17 extrusion elastic component step down the decompression, at filter core 17 extrusion elastic component's in-process near brush 24, arrange grey end 23 and communicate the front portion of clean 4 of a section of thick bamboo gradually, pivoted brush 24 cleans the filter core 17 of jam simultaneously, the dust that drops after the cleanness discharges through arranging grey end 23, make filter core 17 unobstructed again after the clean discharge of dust, make filter core 17 reset under elastic component's elasticity effect this moment, filter core 17 resets and blocks up row grey end 23 blocking again, thereby make the air send into the anterior space in the casing 1 heat dissipation through the middle part of clean 4 of a section of thick bamboo.

In a further embodiment of the present invention, the elastic assembly comprises a socket 22 fixed on the inner wall of the cleaning cylinder 4, a telescopic rod 20 parallel to the axis of the cleaning cylinder 4 and slidably sleeved with the socket 22, and a spring 21 for elastically connecting the telescopic rod 20 and the socket 22;

wherein, the end of the telescopic rod 20 is fixed with the filter element 17; make elastic connection between cover seat 22 and the telescopic link 20 through spring 21, and whole elastic component's setting can be with elastic connection between filter core 17 and the clean section of thick bamboo 4 again to help filter core 17 to let the position when taking place to block up and arrange the ash, the heat dissipation of restoreing when filter core 17 is unobstructed.

In another embodiment of the present invention, a wire holder electrically connected to the three-phase winding 9 through a wire is disposed outside the casing 1, a hoisting ring convenient for hoisting is fixedly welded on the outer wall of the rear portion of the casing 1, and a detachable sealing mouth is mounted on the heat dissipation end 19;

when the motor is not used for a long time, the heat dissipation end 19 can be sealed through the sealing nozzle, and external dust is prevented from entering the front space in the machine shell 1 through the heat dissipation end 19 and adhering to the output shaft 6, the stator core 8, the three-phase winding 9 and the rotor core 10 when the motor does not work.

The foregoing is merely illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to vary. But all changes which come within the scope of the invention are intended to be embraced therein.

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 invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.