CN112018935A

CN112018935A - Motor casing

Info

Publication number: CN112018935A
Application number: CN202011181180.XA
Authority: CN
Inventors: 朱雪峰
Original assignee: Nanjing Wanganshi Intelligent System Co ltd
Current assignee: Hunan Xingrui Precision Manufacturing Co.,Ltd.
Priority date: 2020-10-29
Filing date: 2020-10-29
Publication date: 2020-12-01
Anticipated expiration: 2040-10-29
Also published as: CN112018935B

Abstract

The invention discloses a motor shell, which relates to the field of motor accessories and comprises a shell, wherein a cover plate mechanism is arranged at the end part of the shell, a sealing mechanism is arranged on the outer wall of the cover plate mechanism, a cooling mechanism is sleeved on the outer wall of the shell, a transmission rod is arranged between the shell and the cover plate mechanism, and a plurality of groups of heat conduction mechanisms are arranged on the outer wall of the shell, which is positioned on the inner side of the cooling mechanism. According to the invention, through the arranged cover plate mechanism and the clamping, a plurality of groups of insertion rods are inserted into the insertion groove, the cover plate mechanism is rotated, the mounting plate is fixed with the cover plate mechanism through threads arranged on the outer wall, at the moment, the insertion groove can extrude the insertion rods through the inclined plane arranged on one side, so that the insertion rods enter the shell and extrude the second spring until the mounting plate is tightly attached to the cover plate mechanism through the threads, at the moment, the insertion rods are positioned in the insertion groove, the insertion groove is attached to the insertion rods, the cover plate mechanism can be effectively prevented from reversely rotating, and the problem of low motor assembly efficiency is effectively solved.

Description

Motor casing

Technical Field

The invention relates to the field of motor accessories, in particular to a motor shell.

Background

The motor is an electromagnetic device for realizing electric energy conversion or transmission according to an electromagnetic induction law, generally, electric energy is converted into mechanical energy to provide driving force for external equipment, the outer side of the motor is wrapped by a shell to protect the motor, the materials of the shell of the existing motor are different, the shell can be selected according to different use conditions, and aluminum magnesium alloy is generally adopted.

Present use in the underwater motor also can enter into sewage at present, current motor is when using, lead to sewage to enter into the motor through the connector of casing and pivot very easily, lead to the motor impaired, the influence is used, and the motor can produce high temperature when using, long-time use easily leads to the inside scaling loss of motor, influence the motor life-span, and the motor assembles the back, the motor can take place to rock when the operation, thereby can lead to motor casing can take place the skew when using, thereby lead to the motor housing separation, in order to reduce the separation condition, can weld the shell of motor usually, lead to the motor housing junction to melt impaired, need carry out the mopping rust cleaning again, lead to motor production efficiency to reduce.

Disclosure of Invention

The invention aims to: in order to solve the problems of poor sealing effect of a machine shell, high temperature during the operation of a motor and low assembly efficiency of the motor, the motor machine shell is provided.

In order to achieve the purpose, the invention provides the following technical scheme: a motor shell comprises a shell, wherein a cover plate mechanism is installed at the end part of the shell, a sealing mechanism is installed on the outer wall of the cover plate mechanism, a cooling mechanism is sleeved on the outer wall of the shell, a transmission rod is installed between the shell and the cover plate mechanism, and a plurality of groups of heat conduction mechanisms are installed on the outer wall of the shell, which is positioned on the inner side of the cooling mechanism;

the outer wall of the shell, which is close to the cover plate mechanism, is provided with a mounting plate, the outer side of the mounting plate, which is positioned on the outer wall of the shell, is provided with a plurality of groups of insertion rods, and each group of insertion rods extends to the interior of the shell and is connected with a first spring;

the outer wall of the cover plate mechanism, which is close to the shell, is provided with a plurality of groups of insertion grooves, one side of each group of insertion grooves is provided with an inclined plane, the inner wall of the cover plate mechanism is provided with a one-way valve, a baffle is arranged inside the one-way valve, one side of the baffle is positioned inside the one-way valve and is provided with a second spring, the end part, far away from the baffle, of the second spring is connected with a support pillar, and the support pillar extends to the outer side of the one-way valve;

the sealing mechanism comprises a sealing ring clamped and connected with the outer wall of the cover plate mechanism, a sealing sleeve is sleeved on the outer wall of the transmission rod in the sealing mechanism, a plurality of groups of corrugated grooves are formed in the inner wall of the sealing sleeve, a soft rubber sleeve is arranged in the sealing mechanism on the outer wall of the cover plate mechanism, and a vacuum cavity is formed between the sealing mechanism and the soft rubber sleeve;

the outer wall of the transmission rod is provided with a plurality of groups of guide rods, and the end part of each group of guide rods is provided with a magnet.

Preferably, the outer wall of the casing is provided with a clamping plate, and the casing is connected with the cooling mechanism in a clamping manner through the clamping plate.

Preferably, the inner wall of the cover plate mechanism is provided with a bearing, the cover plate mechanism is rotatably connected with the transmission rod through the bearing, the transmission rod penetrates through the soft rubber sleeve and the sealing sleeve and extends to the outer side of the sealing mechanism, and the sealing sleeve is rotatably connected with the transmission rod through a plurality of groups of corrugated grooves formed in the inner wall.

Preferably, the outer wall of the mounting plate is provided with threads, the inner wall of the cover plate mechanism is also provided with threads matched with the mounting plate, the mounting plate is fixedly connected with the cover plate mechanism through the threads, and the insertion rod is connected with the cover plate mechanism in a clamping manner through the insertion groove.

Preferably, the one-way valve is positioned at one side of a vacuum cavity, the vacuum cavity is communicated with external suction equipment through the one-way valve, and one end of the soft rubber sleeve extends to the inside of the cover plate mechanism.

Preferably, the outer wall of cooling body has seted up the multiunit and has stirred the movable plate, every group stir the inside of movable plate and all seted up oblique grooving, the bottom of oblique grooving extends to cooling body's outer wall, cooling body's outer wall is located the bottom of every group oblique grooving and has all seted up the liquid change mouth, cooling body's one end is connected with the lantern ring, the internally mounted of lantern ring has the multiunit steel ball, and the outer wall that is located the lantern ring between every group steel ball has all seted up high magnet.

Preferably, the outer wall of each group of heat conducting mechanisms is provided with a connecting rod, each group of heat conducting mechanisms is fixedly connected through the connecting rod, the end part of each heat conducting mechanism, which is close to the outer wall of the casing, is provided with a heat conducting fin, and the heat conducting fins penetrate through the casing and extend to the inside of the casing.

Preferably, a cooling bin is arranged between the cooling mechanism and the heat conducting mechanism, the cooling bin is communicated with the outside through a high magnet, and the bottom end of the inclined cutting groove is attached to the top end of the high magnet.

Preferably, the cooling mechanism is rotatably connected with the outer wall of the casing through a steel ball, and the outer wall of the high magnet is not attached to the outer wall of the casing.

Compared with the prior art, the invention has the beneficial effects that:

1. through the cover plate mechanism and the sealing mechanism, before the motor is assembled, the transmission rod firstly penetrates through the bearing until penetrating through the sealing sleeve and extending to the outer side of the cover plate mechanism, the inner wall of the sealing sleeve is provided with a plurality of groups of corrugated grooves, so that external sewage can be effectively prevented from entering the device, after the transmission rod is installed, a suction nozzle of external air suction equipment is inserted into the one-way valve, the ejection column is extruded by an external suction nozzle to open the one-way valve, and then partial gas in the vacuum cavity is sucked out by the suction equipment, so that vacuum is formed in the vacuum cavity, the sealing ring is tightly attached to the outer wall of the cover plate mechanism under the action of pressure, the leakage probability is reduced, the soft rubber sleeve can be used as a second layer of protection to block the leaked water, therefore, secondary protection is carried out, the sealing effect is effectively improved, and the problem of poor sealing effect of the machine shell is effectively solved;

2. through the arranged cooling mechanism and the heat conducting mechanism, when the motor runs, the transmission rod rotates to drive the plurality of groups of guide rods to rotate, the guide rods drive the magnets arranged on the outer wall to rotate, the magnets drive the high magnets to rotate through magnetic force, the high magnets drive the lantern rings to rotate, the lantern rings drive the stirring plate arranged on one side to rotate, the stirring plate rotates to stir sewage into the inclined cutting groove, the sewage flows along the inclined cutting groove until the sewage enters the liquid changing port, and water flows along the liquid changing port into the cooling bin, and the water in the cooling bin is impacted to cause the water in the cooling bin to be disturbed, the heat generated when the motor runs can be transferred into the cooling bin along the heat conducting fins, the flowing water cools the heat conducting fins, therefore, the heat absorption is effectively improved, the temperature of the motor during operation is reduced, and the problem of higher temperature during the operation of the motor is effectively solved;

3. through the apron mechanism that sets up, the casing, insert the pole, mounting panel and block board, after finishing to each inside part installation of motor, need to install apron mechanism outside the casing, at first insert apron mechanism inboard with the mounting panel, make multiunit insert the pole and insert in the groove, rotate apron mechanism, the screw thread that the mounting panel was seted up through the outer wall is fixed with apron mechanism, the inclined plane extrusion that the insertion groove can be seted up through one side this moment inserts the pole, make the pole that inserts enter into the casing and extrude the second spring, until the mounting panel passes through the screw thread and closely laminate with apron mechanism, the pole that inserts this moment is located the insertion groove, the insertion groove can effectually prevent apron mechanism antiport with the pole laminating of inserting, the problem of motor packaging inefficiency has effectively been solved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the position of the vacuum chamber according to the present invention;

FIG. 3 is a schematic view of the check valve of the present invention;

FIG. 4 is a schematic view of the inner wall structure of the sealing sleeve of the present invention;

FIG. 5 is a schematic cross-sectional view of the housing of the present invention;

FIG. 6 is a schematic view of a guide bar arrangement according to the present invention;

FIG. 7 is a schematic view of the cooling mechanism mounting structure of the present invention;

FIG. 8 is a schematic structural diagram of a heat conducting mechanism according to the present invention;

FIG. 9 is a schematic view of the installation structure of the insertion rod and the insertion groove according to the present invention;

FIG. 10 is a schematic cross-sectional view of an insertion groove according to the present invention.

In the figure: 1. a housing; 101. mounting a plate; 102. an insertion rod; 103. a clamping plate; 104. a first spring; 2. a cover plate mechanism; 201. inserting the groove; 202. a bearing; 203. a one-way valve; 204. a baffle plate; 205. a second spring; 206. a top pillar; 3. a sealing mechanism; 301. a seal ring; 302. sealing sleeves; 303. a vacuum chamber; 304. a soft rubber sleeve; 305. a corrugated groove; 4. a cooling mechanism; 401. stirring the plate; 402. a collar; 403. a steel ball; 404. a cooling bin; 405. obliquely cutting a groove; 406. a liquid changing port; 407. a high magnet; 5. a transmission rod; 501. a guide bar; 502. a magnet; 6. a heat conducting mechanism; 601. a connecting rod; 602. a heat conductive sheet.

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.

Referring to fig. 1-10, a motor casing includes a casing 1, a cover plate mechanism 2 is installed at an end of the casing 1, a sealing mechanism 3 is installed on an outer wall of the cover plate mechanism 2, a cooling mechanism 4 is sleeved on an outer wall of the casing 1, a transmission rod 5 is installed between the casing 1 and the cover plate mechanism 2, and a plurality of sets of heat conducting mechanisms 6 are installed on an inner side of the cooling mechanism 4 on the outer wall of the casing 1;

the outer wall of the casing 1 close to the cover plate mechanism 2 is provided with a mounting plate 101, the outer side of the mounting plate 101, which is positioned on the outer wall of the casing 1, is provided with a plurality of groups of insertion rods 102, and each group of insertion rods 102 extends to the inside of the casing 1 and is connected with a first spring 104;

the outer wall of the cover plate mechanism 2 close to the casing 1 is provided with a plurality of groups of insertion grooves 201, one side of each group of insertion grooves 201 is provided with an inclined plane, the inner wall of the cover plate mechanism 2 is provided with a one-way valve 203, a baffle 204 is arranged inside the one-way valve 203, one side of the baffle 204 is positioned inside the one-way valve 203 and is provided with a second spring 205, the end part of the second spring 205 far away from the baffle 204 is connected with a top column 206, and the top column 206 extends to the outer side of the one-way valve 203;

the sealing mechanism 3 comprises a sealing ring 301 which is connected with the outer wall of the plate covering mechanism 2 in a clamping manner, a sealing sleeve 302 is sleeved on the outer wall of the transmission rod 5 in the sealing mechanism 3, a plurality of groups of corrugated grooves 305 are formed in the inner wall of the sealing sleeve 302, a soft rubber sleeve 304 is arranged in the sealing mechanism 3 on the outer wall of the plate covering mechanism 2, and a vacuum cavity 303 is formed between the sealing mechanism 3 and the soft rubber sleeve 304;

the outer wall of the transmission rod 5 is provided with a plurality of guide rods 501, and the end of each guide rod 501 is provided with a magnet 502.

Referring to fig. 5, an engaging plate 103 is disposed on an outer wall of the housing 1, the housing 1 is engaged with the cooling mechanism 4 through the engaging plate 103, and the cooling mechanism 4 can be fixed by the engaging plate 103 to prevent the cooling mechanism 4 from being separated from the housing 1.

Please refer to fig. 2, the bearing 202 is disposed on the inner wall of the cover mechanism 2, the cover mechanism 2 is rotatably connected to the transmission rod 5 through the bearing 202, the transmission rod 5 penetrates through the soft rubber sleeve 304 and the sealing sleeve 302 and extends to the outer side of the sealing mechanism 3, and the sealing sleeve 302 and the soft rubber sleeve 304 can effectively prevent external water from entering the motor, thereby improving the sealing performance of the motor.

Referring to fig. 9 and 10, the mounting plate 101 is fixedly connected to the cover mechanism 2 by a screw, the insertion rod 102 is engaged with the cover mechanism 2 by the insertion slot 201, and the cover mechanism 2 can be limited by the insertion rod 102 and the insertion slot 201 to prevent the cover mechanism 2 from rotating.

Please refer to fig. 2, the check valve 203 is located at one side of the vacuum chamber 303, the vacuum chamber 303 is connected to the external suction device through the check valve 203, one end of the soft rubber sleeve 304 extends to the inside of the cover plate mechanism 2, and the check valve 203 can draw out the gas in the vacuum chamber 303, thereby improving the adhesion between the sealing mechanism 3 and the cover plate mechanism 2 and improving the sealing performance.

Please refer to fig. 5, fig. 6 and fig. 7, the outer wall of the cooling mechanism 4 is provided with a plurality of sets of stirring plates 401, the inner portion of each set of stirring plates 401 is provided with an inclined cutting groove 405, the bottom end of the inclined cutting groove 405 extends to the outer wall of the cooling mechanism 4, the outer wall of the cooling mechanism 4 at the bottom end of each set of inclined cutting groove 405 is provided with a liquid changing port 406, one end of the cooling mechanism 4 is connected with a lantern ring 402, a plurality of sets of steel balls 403 are installed inside the lantern ring 402, and the outer wall of the lantern ring 402 between each set of steel balls 403 is provided.

Please refer to fig. 5 and fig. 6, the outer wall of each set of heat conducting mechanism 6 is provided with a connecting rod 601, each set of heat conducting mechanism 6 is fixedly connected through the connecting rod 601, the end of the heat conducting mechanism 6 close to the outer wall of the casing 1 is provided with a heat conducting fin 602, and the heat conducting fin 602 penetrates through the casing 1 and extends to the inside of the casing 1.

Please refer to fig. 5 and fig. 7, a cooling chamber 404 is disposed between the cooling mechanism 4 and the heat conducting mechanism 6, the cooling chamber 404 is connected to the outside through a high magnet 407, the bottom end of the chamfered groove 405 is attached to the top end of the high magnet 407, and the heat conducting strip 602 is fully contacted by the water flow in the cooling chamber 404, so as to dissipate the heat from the motor of the heat conducting strip 602 and improve the heat dissipation efficiency.

Please refer to fig. 1 and fig. 6, the cooling mechanism 4 is rotatably connected to the outer wall of the casing 1 through the steel ball 403, and the outer wall of the high magnet 407 is not attached to the outer wall of the casing 1, so as to reduce the friction to the outer wall of the casing 1 and reduce the probability of damage to the casing 1.

The working principle is as follows: firstly, assembling a motor shell, firstly installing a soft rubber sleeve on the outer wall of a cover plate mechanism 2, then installing a sealing mechanism 3 on the outer side of the cover plate mechanism 2 through a sealing ring 301, then penetrating a transmission rod through a bearing 202 until the transmission rod penetrates through a sealing sleeve 302 and extends to the outer side of the cover plate mechanism 2, forming a plurality of groups of corrugated grooves 305 on the inner wall of the sealing sleeve 302, forming a plurality of groups of cavities between the sealing sleeve 302 and the transmission rod 5 under the condition that the corrugated grooves 305 can reduce friction with the transmission rod 5 as much as possible, effectively preventing external sewage from entering the device, inserting a suction nozzle of external air suction equipment into a one-way valve 203 after the transmission rod 5 is installed, extruding a top column 206 through the external suction nozzle to open the one-way valve 203, then sucking out partial gas in a vacuum cavity 303 through the air suction equipment to form vacuum in the vacuum cavity 303, and then, the first spring 104 pushes the top column to reset, the sealing ring 301 is tightly attached to the outer wall of the cover plate mechanism 2 under the action of pressure, the leakage probability is reduced, and the soft rubber sleeve 304 can be used as a second layer of protection to block leaked water, so that secondary protection is performed, and the sealing effect is effectively improved;

after the components in the motor are installed, the cover mechanism 2 needs to be installed outside the housing 1, the mounting plate 101 is inserted into the cover mechanism 2, the plurality of sets of insertion rods 102 are inserted into the insertion grooves 201, the cover mechanism 2 is rotated, the mounting plate 101 is fixed with the cover mechanism 2 through the threads formed on the outer wall, at this time, the insertion grooves 201 can extrude the insertion rods 102 through the inclined surfaces formed on one side, the insertion rods 102 enter the housing 1 and extrude the second springs 205 until the mounting plate 101 is tightly attached to the cover mechanism 2 through the threads, and at this time, the insertion rods 102 are located in the insertion grooves 201, when the motor operates, the relative displacement between the cover plate mechanism 2 and the shell 1 can be caused by vibration, the axial offset between the cover plate mechanism 2 and the shell 1 can be effectively prevented by the threads, and the rotation offset of the cover plate mechanism 2 can be effectively prevented by the fit of the insertion groove 201 and the insertion rod 102;

when the motor runs, a large amount of heat is generated, at the moment, the transmission rod 5 rotates to drive the plurality of groups of guide rods 501 to rotate, the guide rods 501 drive the magnets 502 arranged on the outer walls to rotate, the magnets 502 drive the high magnets 407 to rotate through magnetic force, the high magnets 407 drive the lantern ring 402 to rotate, the lantern ring 402 drives the stirring plate 401 arranged on one side to rotate, the stirring plate 401 rotates to stir sewage into the inclined cutting groove 405, the sewage flows along the inclined cutting groove 405 until the sewage enters the liquid changing port 406, and water flows along the liquid changing port 406 to flush into the cooling bin 404, and impacts the water in the cooling bin 404, causing the water in the cooling bin 404 to be disturbed, meanwhile, heat generated during the operation of the motor is transferred into the cooling bin 404 along the heat conducting sheet 602, and flowing water cools the heat conducting sheet 602, so that the heat absorption is effectively improved, and the temperature of the motor during the operation is reduced.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A motor casing, includes casing (1), its characterized in that: a cover plate mechanism (2) is installed at the end part of the casing (1), a sealing mechanism (3) is installed on the outer wall of the cover plate mechanism (2), a cooling mechanism (4) is sleeved on the outer wall of the casing (1), a transmission rod (5) is installed between the casing (1) and the cover plate mechanism (2), and a plurality of groups of heat conduction mechanisms (6) are installed on the inner side, located on the cooling mechanism (4), of the outer wall of the casing (1);

the outer wall of the shell (1) close to the cover plate mechanism (2) is provided with a mounting plate (101), the outer side of the mounting plate (101) on the outer wall of the shell (1) is provided with a plurality of groups of insertion rods (102), and each group of insertion rods (102) extends to the interior of the shell (1) and is connected with a first spring (104);

the outer wall, close to the shell (1), of the cover plate mechanism (2) is provided with a plurality of groups of insertion grooves (201), one side of each group of insertion grooves (201) is provided with an inclined surface, the inner wall of the cover plate mechanism (2) is provided with a one-way valve (203), a baffle (204) is arranged inside the one-way valve (203), one side of the baffle (204) is located inside the one-way valve (203) and is provided with a second spring (205), the end, far away from the baffle (204), of the second spring (205) is connected with a support pillar (206), and the support pillar (206) extends to the outer side of the one-way valve (203);

the sealing mechanism (3) comprises a sealing ring (301) connected with the outer wall of the cover plate mechanism (2) in a clamping mode, a sealing sleeve (302) is sleeved on the outer wall, located on the transmission rod (5), in the sealing mechanism (3), the inner wall of the sealing sleeve (302) is provided with a plurality of groups of corrugated grooves (305), a soft rubber sleeve (304) is installed in the sealing mechanism (3) in the outer wall of the cover plate mechanism (2), and a vacuum cavity (303) is formed between the sealing mechanism (3) and the soft rubber sleeve (304);

the outer wall of the transmission rod (5) is provided with a plurality of groups of guide rods (501), and the end part of each group of guide rods (501) is provided with a magnet (502).

2. A motor casing according to claim 1, wherein: the outer wall of the machine shell (1) is provided with a clamping plate (103), and the machine shell (1) is connected with the cooling mechanism (4) in a clamping mode through the clamping plate (103).

3. A motor casing according to claim 1, wherein: the inner wall of the cover plate mechanism (2) is provided with a bearing (202), the cover plate mechanism (2) is rotatably connected with a transmission rod (5) through the bearing (202), the transmission rod (5) penetrates through a soft rubber sleeve (304) and a sealing sleeve (302) and extends to the outer side of the sealing mechanism (3), and the sealing sleeve (302) is rotatably connected with the transmission rod (5) through a plurality of groups of corrugated grooves (305) formed in the inner wall.

4. A motor casing according to claim 1, wherein: the outer wall of mounting panel (101) is seted up threadedly, the inner wall of apron mechanism (2) also seted up with mounting panel (101) assorted screw thread, mounting panel (101) are through screw thread and apron mechanism (2) fixed connection, inserted bar (102) are connected with apron mechanism (2) block through insertion groove (201).

5. A motor casing according to claim 1, wherein: the one-way valve (203) is located on one side of the vacuum cavity (303), the vacuum cavity (303) is communicated with external air suction equipment through the one-way valve (203), and one end of the soft rubber sleeve (304) extends to the inside of the cover plate mechanism (2).

6. A motor casing according to claim 1, wherein: the outer wall of cooling body (4) has been seted up multiunit and has been stirred movable plate (401), and every group stirring movable plate (401) inside has all been seted up oblique grooving (405), the bottom of oblique grooving (405) extends to the outer wall of cooling body (4), the outer wall of cooling body (4) is located the bottom of every group oblique grooving (405) and has all seted up and trade liquid mouth (406), the one end of cooling body (4) is connected with lantern ring (402), the internally mounted of lantern ring (402) has multiunit steel ball (403), and the outer wall that is located lantern ring (402) between every group steel ball (403) has all seted up high magnet (407).

7. The motor casing of claim 6, wherein: every group the outer wall of heat conduction mechanism (6) has all seted up connecting rod (601), every group heat conduction mechanism (6) all pass through connecting rod (601) fixed connection, heat conduction mechanism (6) are close to the tip of casing (1) outer wall and have seted up conducting strip (602), and conducting strip (602) run through casing (1) and extend to the inside of casing (1).

8. The motor casing of claim 7, wherein: a cooling bin (404) is arranged between the cooling mechanism (4) and the heat conducting mechanism (6), the cooling bin (404) is communicated with the outside through a high magnet (407), and the bottom end of the oblique cutting groove (405) is attached to the top end of the high magnet (407).

9. The motor casing of claim 7, wherein: the cooling mechanism (4) is rotatably connected with the outer wall of the machine shell (1) through a steel ball (403), and the outer wall of the high magnet (407) is not attached to the outer wall of the machine shell (1).