CN210431100U

CN210431100U - Brushless motor suitable for high-speed motion state

Info

Publication number: CN210431100U
Application number: CN201920917895.3U
Authority: CN
Inventors: 曾庆洪; 郗挺
Original assignee: Guangzhou Tengxiang Hardware Model Co ltd
Current assignee: Guangzhou Tengxiang Hardware Model Co ltd
Priority date: 2019-06-18
Filing date: 2019-06-18
Publication date: 2020-04-28
Anticipated expiration: 2029-06-18

Abstract

The utility model relates to a brushless motor suitable for high-speed motion state, which belongs to the motor technology and comprises a motor shell, a shell rear cover, a cooling part and a shaft part fixing part, wherein a stator is arranged in the motor shell, a rotor is arranged between the stators, the rotor is arranged in the motor shell through the rotation of a rotating shaft, the shell rear cover is arranged at the rear end of the motor shell, the cooling part is arranged at the front end of the motor shell, a liquid storage cavity is arranged in the cooling part, a liquid inlet and a liquid outlet which are communicated with the liquid storage cavity are arranged on the cooling part, a bulge is arranged at the bottom of the cooling part, a groove body for placing the bulge is arranged in the middle of the front side of the; the utility model discloses the effectual radiating problem of brushless motor fuselage under having solved high-speed motion state, cooling rate is fast, reduces the range of rotating vibrations, has increased pivoted stability, has guaranteed brushless motor's high-speed rotation.

Description

Brushless motor suitable for high-speed motion state

The technical field is as follows:

the utility model relates to the technical field of motors, concretely relates to be suitable for high-speed motion state's brushless motor.

Background art:

the brushless motor is composed of a motor main body and a driver, and is a typical electromechanical integration product. Brushless motors are widely used because of their compact size, high reliability, long life, low noise, and the like. The high-speed motor generally refers to a motor with the rotating speed exceeding 10000r/min, and has the following advantages: firstly, the motor has high power density due to high rotating speed, and the volume of the motor is far smaller than that of a motor with ordinary power, so that the material can be effectively saved; secondly, the transmission mechanism can be connected with a prime motor, the traditional speed reducing mechanism is cancelled, the transmission efficiency is high, and the noise is low; thirdly, the high-speed motor has small moment of inertia, so the dynamic response is fast. But the heat production of the brushless motor body rotating at high speed is more than that of the common motor, so that the brushless motor can move at high speed, and the heat dissipation problem is solved firstly. The heat of the machine body is slowly dissipated in the high-speed rotation process of the existing brushless motor. Therefore, the utility model provides a be suitable for high-speed motion state's brushless motor to solve not enough and shortcoming that prior art exists.

The utility model has the following contents:

the present invention is to overcome the disadvantages of the prior art, and provides a brushless motor suitable for high-speed motion.

The utility model adopts the technical proposal that:

the utility model provides a be suitable for brushless motor of high-speed motion state, includes motor casing, casing rear cover, cooling piece and axial region mounting, be equipped with the stator in the motor casing, be equipped with the rotor between the stator, the rotor rotates through the axis of rotation to be located in the motor casing, the casing rear cover is installed the motor casing rear end, the cooling piece is installed the motor casing front end, be equipped with the stock solution cavity in the cooling piece, it is equipped with the intercommunication to link up on the cooling piece inlet and the liquid outlet of stock solution cavity, cooling piece bottom is equipped with the arch, motor casing front side middle part is equipped with the confession the protruding cell body of placing, axial region mounting installation is fixed on the cooling piece, the axis of rotation runs through motor casing, cooling piece and axial region mounting.

Preferably, the liquid inlet is plugged with a sealing plug, the liquid outlet is plugged with a liquid guide pipe extending to the bottom of the liquid storage cavity, one end of the shaft part fixing part is provided with a protective cover, and the protective cover is covered on the liquid guide pipe in a matched manner.

Preferably, the motor housing and the housing rear cover are fixedly connected through a connecting piece A.

Preferably, the motor shell and the cooling piece are fixedly connected through a connecting piece B

Preferably, a first bearing and a second bearing for fixing the shaft rotating shaft are respectively arranged between the middle part of the front end of the motor shell and the shaft fixing piece.

Preferably, the tail end of the rotating shaft is coaxially and fixedly provided with a radiating blade.

Preferably, a dustproof net is embedded in the middle of the rear end of the shell rear cover.

The utility model has the advantages that: the utility model discloses the effectual radiating problem of brushless motor fuselage under having solved high-speed motion state, through the utility model discloses the cooling piece that sets up, the effectual motor casing that cools down, the radiating blade that combines to set up is to the heat dissipation of two-way cooling around the motor casing, and cooling speed is fast, has fully guaranteed the stability of the high-speed motion of brushless motor, and the multiplicable axis of rotation pivoted stability of axial region mounting of adaptation increase reduces the range of rotating vibrations, has guaranteed brushless motor's high-speed rotation, the utility model has the advantages of simple structure, easily the installation is fixed, and connected mode is simple, and the operation is convenient.

Description of the drawings:

FIG. 1: the utility model discloses a three-dimensional explosion chart.

FIG. 2: the structure of the utility model is schematically shown.

FIG. 3: the utility model discloses the partial cross-sectional view of figure 2.

FIG. 4: the utility model discloses the local cross-sectional view of cooling piece.

In the figure: 1. the cooling device comprises a motor shell, 2, a shell rear cover, 3, a cooling part, 4, a shaft part fixing part, 5, a stator, 6, a rotor, 7, a rotating shaft, 8, a liquid storage cavity, 9, a liquid inlet, 10, a liquid outlet, 11, a protrusion, 12, a groove body, 13, a sealing plug, 14, a liquid guide pipe, 15, a protective cover, 16, connecting pieces A, 17, connecting pieces B, 18, a first bearing, 19, a second bearing, 20, a radiating blade, 21 and a dustproof net.

The specific implementation mode is as follows:

the drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Referring to fig. 1-4, a brushless motor suitable for a high-speed motion state includes a motor housing 1, a housing rear cover 2, a cooling member 3, and a shaft portion fixing member 4, wherein a dust screen 2 is embedded in the middle of the rear end of the housing rear cover 2, the motor housing 1 and the housing rear cover 2 are fixedly connected by a connecting member a16, the motor housing 1 and the cooling member 3 are fixedly connected by a connecting member B17, in this embodiment, the connecting member a16 is a first fixing bolt, and the connecting member B17 is a second fixing bolt. A stator 5 is arranged in a motor shell 1, a rotor 6 is arranged between the stators 5, the rotor 6 is rotatably arranged in the motor shell 1 through a rotating shaft 7, a first bearing 18 and a second bearing 19 for fixing the rotating shaft 7 are respectively arranged between the middle part of the front end of the motor shell 1 and a shaft part fixing part 4, a radiating blade 20 is coaxially and fixedly arranged at the tail end of the rotating shaft 7, a shell rear cover 2 is arranged at the rear end of the motor shell 1, a cooling part 3 is arranged at the front end of the motor shell 1, a liquid storage cavity 8 is arranged in the cooling part 3, cooling liquid for cooling the brushless motor can be introduced into the liquid storage cavity 8, a liquid inlet 9 and a liquid outlet 10 communicated with the liquid storage cavity 8 are arranged on the cooling part 3 in a penetrating way, a sealing plug 13 is arranged on the liquid inlet 9 in a plugging way, a liquid guide pipe 14, in this embodiment in the use catheter 14 plugs the mouth of pipe of catheter 14 through sealed waterproof stopper, and cooling piece 3 bottom is equipped with arch 11, and motor casing 1 front side middle part is equipped with the cell body 12 that supplies arch 11 to place, can guarantee that cooling piece 3 fully contacts motor casing 1 front side in order to reach the cooling. The shaft fixing member 4 is fixed to the cooling member 3, and the rotation shaft 7 penetrates through the motor housing 1, the cooling member 3, and the shaft fixing member 4.

The utility model discloses a theory of operation does: the cooling part 3 is fixedly arranged at the front end of the motor shell 1 through a connecting part B17, so that the rotating shaft 7 penetrates through the cooling part 3, the shaft part fixing part 4 is fixedly arranged at the front side of the cooling part 3, the rotating shaft 7 penetrates through the shaft part fixing part 4 and is fixed by a bearing II 19 between the shaft part fixing parts 4, the shell rear cover 2 is arranged at the rear end of the motor shell 1 through a connecting part A16, cooling liquid is introduced into the liquid storage cavity 8 through the liquid inlet 9, and the liquid inlet 9 is plugged by the sealing plug 13 and the liquid guide tube 14 at the position of the liquid outlet 10 is sealed and waterproof after introduction; when the motor rotates, the heat of the motor housing 1 itself is absorbed by the cooling liquid in the cooling member 3 to be cooled, and the heat at the rear side of the motor housing 1 can be dissipated by the rotation of the cooling blades 20.

In the drawings, the positional relationship is described for illustrative purposes only and is not to be construed as limiting the present patent; it is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A brushless electric machine adapted for high speed motion conditions, comprising: comprises a motor shell (1), a shell rear cover (2), a cooling piece (3) and a shaft part fixing piece (4), wherein a stator (5) is arranged in the motor shell (1), a rotor (6) is arranged between the stators (5), the rotor (6) is rotatably arranged in the motor shell (1) through a rotating shaft (7), the shell rear cover (2) is arranged at the rear end of the motor shell (1), the cooling piece (3) is arranged at the front end of the motor shell (1), a liquid storage cavity (8) is arranged in the cooling piece (3), a liquid inlet (9) and a liquid outlet (10) which are communicated with the liquid storage cavity (8) are arranged on the cooling piece (3) in a penetrating way, a bulge (11) is arranged at the bottom of the cooling piece (3), a groove body (12) for placing the bulge (11) is arranged in the middle part of the front side of the motor shell (1), and the shaft part fixing piece (4) is fixedly arranged, the rotating shaft (7) penetrates through the motor shell (1), the cooling piece (3) and the shaft fixing piece (4).

2. The brushless electric machine adapted for a high-speed motion state according to claim 1, wherein: the liquid inlet (9) is plugged with a sealing plug (13), a liquid guide pipe (14) extending to the bottom of the liquid storage cavity (8) is arranged at the liquid outlet (10) in an inserting mode, a protective cover (15) is arranged at one end of the shaft fixing part (4), and the protective cover (15) is covered on the liquid guide pipe (14) in an adaptive mode.

3. The brushless electric machine adapted for a high-speed motion state according to claim 1, wherein: the motor shell (1) and the shell rear cover (2) are fixedly connected through a connecting piece A (16).

4. The brushless electric machine adapted for a high-speed motion state according to claim 1, wherein: the motor shell (1) and the cooling piece (3) are fixedly connected through a connecting piece B (17).

5. The brushless electric machine adapted for a high-speed motion state according to claim 1, wherein: and a first bearing (18) and a second bearing (19) for fixing the rotating shaft (7) are respectively arranged between the middle part of the front end of the motor shell (1) and the shaft part fixing piece (4).

6. The brushless electric machine adapted for a high-speed motion state according to claim 1, wherein: and the tail end of the rotating shaft (7) is coaxially and fixedly provided with a radiating blade (20).

7. The brushless electric machine adapted for a high-speed motion state according to claim 1, wherein: the middle part of the rear end of the shell rear cover (2) is embedded with a dust screen (21).