CN217087597U

CN217087597U - Brushless motor with rotor magnetic steel fixing structure

Info

Publication number: CN217087597U
Application number: CN202220330778.9U
Authority: CN
Inventors: 俞幸; 姜晓锋
Original assignee: Jiangsu Lingxin Electric Technology Co ltd
Current assignee: Jiangsu Lingxin Electric Technology Co ltd
Priority date: 2022-02-18
Filing date: 2022-02-18
Publication date: 2022-07-29
Anticipated expiration: 2032-02-18

Abstract

The utility model provides a brushless motor with rotor magnet steel fixed knot constructs relates to brushless motor technical field. This brushless motor with rotor magnet steel fixed knot constructs includes casing, dustcoat and transmission shaft, the inside top fixedly connected with spacing ring of dustcoat, a plurality of fixture blocks of spacing ring bottom fixedly connected with, a plurality of fixed columns of spacing ring bottom fixedly connected with, the inside a plurality of magnet steel bodies that are provided with of fixed column, it is a plurality of the spacing ring respectively with a plurality of fixture block joints, the dustcoat bottom is provided with solid fixed ring, gu fixed ring top fixedly connected with limiting plate, the limiting plate contacts with the magnet steel body bottom, gu fixed ring top fixedly connected with fixes the cover, fixed column and fixed cover looks adaptation. This brushless motor with rotor magnet steel fixed knot constructs makes limiting plate and magnet steel body bottom contact to fix magnet steel body, improve stability.

Description

Brushless motor with rotor magnetic steel fixing structure

Technical Field

The utility model relates to a brushless motor specifically is brushless motor with rotor magnet steel fixed knot constructs belongs to brushless motor technical field.

Background

The brushless direct current motor is composed of a motor main body and a driver, and is a typical electromechanical integration product. Because the brushless DC motor is operated in a self-control mode, a starting winding is not additionally arranged on a rotor like a synchronous motor which is started under the condition of heavy load under the condition of frequency conversion and speed regulation, and oscillation and step-out can not be generated when the load suddenly changes. The permanent magnet of the brushless DC motor with medium and small capacity is mostly made of rare earth neodymium iron boron (Nd-Fe-B) material with high magnetic energy level. Therefore, the volume of the rare earth permanent magnet brushless motor is reduced by one machine seat number compared with that of a same-capacity three-phase asynchronous motor.

The existing motor outer rotor component mainly comprises a motor shell, a rotating shaft and magnetic steel arranged in the motor shell, wherein the magnetic steel is generally directly adhered to the inner circumferential surface of the motor shell through glue, a shaft hole is formed in the bottom of the motor shell, and the rotating shaft is in interference fit with the shaft hole in the motor shell. Adopt glue fixed magnet steel, production cycle is long, work longer time after, glue takes place ageing easily for the magnet steel is not hard up, influences the motor and uses, because glue has volatile smell, can cause the influence or even can influence staff's healthy to the production environment moreover.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims at providing a brushless motor with rotor magnet steel fixed knot constructs in order to solve above-mentioned problem to adopt the fixed magnet steel of glue among the solution prior art, production cycle is long, work longer time back, and glue takes place ageing easily, makes the magnet steel not hard up, influences the motor and uses, because glue has volatile smell moreover, can cause the problem that influences the healthy of staff even can influence the production environment.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: brushless motor with rotor magnet steel fixed knot constructs, including casing, dustcoat and transmission shaft, the inside top fixedly connected with spacing ring of dustcoat, a plurality of fixture blocks of spacing ring bottom fixedly connected with, a plurality of fixed columns of spacing ring bottom fixedly connected with, the inside a plurality of magnet steel bodies that are provided with of fixed column, it is a plurality of the spacing ring respectively with a plurality of fixture block joints, the dustcoat bottom is provided with solid fixed ring, gu fixed ring top fixedly connected with limiting plate, the limiting plate contacts with the magnet steel body bottom, gu fixed ring top fixedly connected with fixes the cover, fixed column and fixed cover looks adaptation.

Preferably, solid fixed ring top fixedly connected with joint pole, the inside fixedly connected with locating lever of dustcoat, joint pole and locating lever joint when solid fixed ring contacts with the dustcoat, the joint pole carries out the joint with the locating lever to fix a position dustcoat and dustcoat tentatively to solid fixed ring, easy to assemble is favorable to fixing a position dustcoat and solid fixed ring simultaneously, prevents the skew.

Preferably, a plurality of connecting plates are fixedly connected to the top of the fixing ring, the connecting plates are arranged inside a plurality of fixing sleeves respectively, clamping grooves are formed in two side walls of the fixing sleeves, through grooves are formed in two side walls of the bottom end of the fixing column, the bottom end of each connecting plate is matched with the clamping grooves and the through grooves, and therefore when the connecting plates move towards the inside of the fixing column, the connecting plates penetrate through the through grooves and are clamped with the clamping grooves, and the connecting plates are limited.

Preferably, the fixed column bottom is provided with two triangular sliding blocks, two equal fixedly connected with T shape pole in triangular sliding block top, the T-slot has all been seted up to fixed column bottom inside, T shape pole and T-slot sliding connection make T shape pole carry on spacingly to triangular sliding block to make T shape pole slide in T-slot inside and drive triangular sliding block and remove.

Preferably, two fixedly connected with shell fragment between the T shape pole, the inside sliding connection of solid fixed ring has a plurality of push rods, the push rod top contacts with the shell fragment, two the triangle slider contacts with two draw-in grooves respectively, makes the triangle slider carry on spacingly to the connecting plate, and the push rod removes and promotes the shell fragment and remove to make the shell fragment separate, promote the connecting plate to the draw-in groove is inside, be favorable to making connecting plate and fixed cover joint.

Preferably, the push rod outside fixedly connected with baffle, the baffle contacts with solid fixed ring top, is favorable to spacing the push rod, prevents that the push rod from dropping.

Preferably, dustcoat top fixedly connected with threaded mounting cover, threaded mounting cover top and solid fixed ring threaded connection, the threaded mounting cover top contacts in the push rod bottom, makes the threaded mounting cover fixed with regard to those to solid fixed ring to when threaded mounting cover and solid fixed ring threaded connection, be close to between threaded mounting cover and the solid fixed ring, the threaded mounting cover promotes the push rod rebound, thereby conveniently carry on spacingly to the connecting plate.

The utility model provides a brushless motor with rotor magnet steel fixed knot constructs, its beneficial effect who possesses as follows:

1. this brushless motor with rotor magnet steel fixed knot constructs, inside the fixed column through the magnet steel body joint, and the fixture block carries on spacingly to the magnet steel body, thereby fix the magnet steel body, carry out preliminary location with dustcoat and solid fixed ring, make the joint pole at solid fixed ring top carry out the joint with the inside locating lever of dustcoat, make the joint pole fix with the locating lever, thereby fix a position dustcoat and solid fixed ring, make limiting plate and magnet steel body bottom contact, thereby fix magnet steel body, the stability is improved.

2. This brushless motor with rotor magnet steel fixed knot constructs, through thread mounting cover and solid fixed ring threaded connection, be close to solid fixed ring when making thread mounting cover and solid fixed ring connect, thread mounting cover promotes the push rod and removes, it carries out the incline to promote the shell fragment when the push rod removes, thereby make the shell fragment promote to move triangle slider to both sides, promote triangle slider to the draw-in groove direction, thereby make triangle slider promote the connecting plate and carry out the draw-in groove laminating, carry on spacingly to the connecting plate, prevent that connecting plate and draw-in groove from breaking away from, improve fixed effect, increase stability.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a front sectional view of the present invention;

FIG. 3 is an enlarged view of the portion A of FIG. 2 according to the present invention;

fig. 4 is a schematic structural view of the fixing ring of the present invention.

In the figure: 1. a housing; 2. a housing; 3. a drive shaft; 4. a magnetic steel body; 5. a limiting ring; 6. a clamping block; 7. fixing a column; 8. a fixing ring; 9. a limiting plate; 10. a clamping and connecting rod; 11. positioning a rod; 12. fixing a sleeve; 13. a connecting plate; 14. a card slot; 15. a through groove; 16. a triangular slider; 17. a T-shaped slot; 18. a T-shaped rod; 19. a spring plate; 20. a push rod; 21. a baffle plate; 22. and (5) installing a sleeve by screw threads.

Detailed Description

The embodiment of the utility model provides a brushless motor with rotor magnet steel fixed knot constructs.

Referring to fig. 1, 2, 3 and 4, the device comprises a housing 1, an outer cover 2 and a transmission shaft 3, wherein a limiting ring 5 is fixedly connected to the top end of the inner portion of the outer cover 2, a plurality of clamping blocks 6 are fixedly connected to the bottom of the limiting ring 5, a plurality of fixing columns 7 are fixedly connected to the bottom of the limiting ring 5, a plurality of magnetic steel bodies 4 are arranged inside the fixing columns 7, the plurality of limiting rings 5 are respectively clamped with the plurality of clamping blocks 6, a fixing ring 8 is arranged at the bottom of the outer cover 2, a limiting plate 9 is fixedly connected to the top of the fixing ring 8, the limiting plate 9 is contacted with the bottom of the magnetic steel bodies 4, a fixing sleeve 12 is fixedly connected to the top of the fixing ring 8, the fixing columns 7 are matched with the fixing sleeve 12, a clamping rod 10 is fixedly connected to the top of the fixing ring 8, a positioning rod 11 is fixedly connected to the inner portion of the outer cover 2, the clamping rod 10 is clamped with the positioning rod 11 when the fixing ring 8 is contacted with the outer cover 2, thereby fix fixed ring 8 and dustcoat 2 tentatively, easy to assemble is favorable to fixing a position dustcoat 2 and fixed ring 8 simultaneously, prevents the skew.

Gu a plurality of connecting plates 13 of 8 top fixedly connected with of solid fixed ring, a plurality of connecting plates 13 set up respectively inside a plurality of fixed covers 12, draw-in groove 14 has all been seted up to fixed cover 12 both sides inside wall, leading to groove 15 has all been seted up to fixed column 7 bottom both sides inside wall, connecting plate 13 bottom and draw-in groove 14 and lead to groove 15 looks adaptation, thereby make connecting plate 13 pass logical groove 15 and carry out the joint with draw-in groove 14 when moving to fixed column 7 is inside, be favorable to spacing connecting plate 13.

The bottom of the fixed column 7 is provided with two triangular sliding blocks 16, the tops of the two triangular sliding blocks 16 are fixedly connected with T-shaped rods 18, T-shaped grooves 17 are formed in the bottom ends of the fixed column 7, the T-shaped rods 18 are connected with the T-shaped grooves 17 in a sliding mode, the T-shaped rods 18 limit the triangular sliding blocks 16, so that the T-shaped rods 18 slide in the T-shaped grooves 17 to drive the triangular sliding blocks 16 to move, elastic pieces 19 are fixedly connected between the two T-shaped rods 18, a plurality of push rods 20 are connected in the fixed ring 8 in a sliding mode, the top ends of the push rods 20 are in contact with the elastic pieces 19, the two triangular sliding blocks 16 are respectively in contact with the two clamping grooves 14, the triangular sliding blocks 16 limit the connecting plate 13, the push rods 20 move to push the elastic pieces 19 to move, so that the elastic pieces 19 are separated, the connecting plate 13 is pushed towards the insides of the clamping grooves 14 to be beneficial to clamping connection of the connecting plate 13 and the fixed sleeve 12, and baffles 21 are fixedly connected to the outer sides of the push rods 20, baffle 21 contacts with solid fixed ring 8 top, be favorable to spacing push rod 20, prevent that push rod 20 from dropping, 2 top fixedly connected with threaded mounting cover 22 of dustcoat, threaded mounting cover 22 top and solid fixed ring 8 threaded connection, threaded mounting cover 22 top contacts in push rod 20 bottom, make threaded mounting cover 22 fixed with regard to those solid fixed ring 8, and when threaded mounting cover 22 and solid fixed ring 8 threaded connection, be close to between threaded mounting cover 22 and the solid fixed ring 8, threaded mounting cover 22 promotes push rod 20 and upwards removes, thereby conveniently carry on spacingly to connecting plate 13.

It is specific, inside fixed column 7 through 4 joints of magnet steel body, and fixture block 6 carries on spacingly to magnet steel body 4, thereby fix magnet steel body 4, carry out preliminary location with dustcoat 2 and solid fixed ring 8, make joint pole 10 at solid fixed ring 8 top carry out the joint with dustcoat 2 inside locating lever 11, make joint pole 10 fix with locating lever 11, thereby fix a position dustcoat 2 and solid fixed ring 8, make limiting plate 9 contact with magnet steel body 4 bottom, thereby fix magnet steel body 4, stability is improved, when solid fixed ring 8 and dustcoat 2 joint, gu fixed ring 8 drives connecting plate 13 and to fixed 12 inside removal of cover, make connecting plate 13 contact with triangle slider 16, and remove to both sides along triangle slider 16, thereby make connecting plate 13 pass logical groove 15 and carry out the joint with draw-in groove 14.

Through threaded mounting cover 22 and solid fixed ring 8 threaded connection, be close to solid fixed ring 8 when making threaded mounting cover 22 and solid fixed ring 8 connect, threaded mounting cover 22 promotes push rod 20 and removes, it carries out the incline to promote shell fragment 19 when push rod 20 removes, thereby make shell fragment 19 promote to remove triangle slider 16 to both sides, promote triangle slider 16 to draw-in groove 14 direction, thereby make triangle slider 16 promote connecting plate 13 and carry out the laminating of draw-in groove 14, it is spacing to connecting plate 13, prevent that connecting plate 13 and draw-in groove 14 from breaking away from, improve fixed effect, increase stability.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Brushless motor with rotor magnet steel fixed knot constructs, including casing (1), dustcoat (2) and transmission shaft (3), its characterized in that: the utility model discloses a safety protection device for a motor vehicle, including dustcoat (2), inside top fixedly connected with spacing ring (5) of spacing ring (2), a plurality of fixture blocks (6) of spacing ring (5) bottom fixedly connected with a plurality of fixed columns (7), fixed column (7) inside is provided with a plurality of magnet steel body (4), and is a plurality of spacing ring (5) respectively with a plurality of fixture block (6) joint, dustcoat (2) bottom is provided with solid fixed ring (8), gu fixed ring (8) top fixedly connected with limiting plate (9), limiting plate (9) contact bottom magnet steel body (4), gu fixed ring (8) top fixedly connected with fixed cover (12), fixed column (7) and fixed cover (12) looks adaptation.

2. The brushless electric machine with a rotor magnetic steel fixing structure according to claim 1, wherein: the top of the fixing ring (8) is fixedly connected with a clamping rod (10), the inner part of the outer cover (2) is fixedly connected with a positioning rod (11), and the clamping rod (10) is clamped with the positioning rod (11).

3. The brushless electric machine with a rotor magnetic steel fixing structure according to claim 1, wherein: the fixing ring is characterized in that a plurality of connecting plates (13) are fixedly connected to the top of the fixing ring (8), the connecting plates (13) are arranged inside a plurality of fixing sleeves (12) respectively, clamping grooves (14) are formed in two side walls of the fixing sleeves (12), through grooves (15) are formed in two side walls of the bottom end of the fixing column (7), and the bottom ends of the connecting plates (13) are matched with the clamping grooves (14) and the through grooves (15).

4. The brushless electric machine with a rotor magnetic steel fixing structure according to claim 1, wherein: the bottom of the fixing column (7) is provided with two triangular sliding blocks (16), the top of each triangular sliding block (16) is fixedly connected with a T-shaped rod (18), T-shaped grooves (17) are formed in the bottom of the fixing column (7), and the T-shaped rods (18) are connected with the T-shaped grooves (17) in a sliding mode.

5. The brushless electric machine with a rotor magnetic steel fixing structure according to claim 4, wherein: fixedly connected with shell fragment (19) between two T shape pole (18), gu fixed ring (8) inside sliding connection has a plurality of push rods (20), push rod (20) top contacts with shell fragment (19), two triangle slider (16) contact with two draw-in grooves (14) respectively.

6. The brushless electric machine with a rotor magnetic steel fixing structure according to claim 5, wherein: the outer side of the push rod (20) is fixedly connected with a baffle (21), and the baffle (21) is in contact with the top of the fixing ring (8).

7. The brushless electric machine with a rotor magnetic steel fixing structure according to claim 5, wherein: dustcoat (2) top fixedly connected with screw thread installation cover (22), screw thread installation cover (22) top and solid fixed ring (8) threaded connection, screw thread installation cover (22) top contacts in push rod (20) bottom.