CN210958101U

CN210958101U - Brushless motor end plate structure

Info

Publication number: CN210958101U
Application number: CN201922387517.1U
Authority: CN
Inventors: 杨倩
Original assignee: Jiangxi Meide Electromechanical Accessories Co ltd
Current assignee: Jiangxi Meide Electromechanical Accessories Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-07-07
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses a brushless motor end plate structure, comprising an end plate, the last fixed surface of end plate is connected with the stator, the top fixedly connected with silicon steel sheet of stator, the last fixed surface center fixedly connected with fixed column of end plate, and the fixed column be cavity, the inner wall of fixed column rotates and is connected with the transmission shaft, the side fixedly connected with rotor of transmission shaft, the interior roof fixedly connected with magnet of rotor. This brushless motor end plate structure, through setting up the end plate, the connecting plate, the safety cover, the backup pad, fixed disc, the second bearing, the location fixture block, half slot and semicircle ball, be convenient for end plate and the inside device of safety cover protection brushless motor to make the rotor pass through the semicircle ball of bottom at the spacing rotation on the surface of location fixture block, support the end plate through fixed disc and backup pad, the brushless motor of being convenient for stably operates, thereby reach this brushless motor end plate structure and have supplementary brushless motor's effect.

Description

Brushless motor end plate structure

Technical Field

The utility model relates to a brushless motor technical field specifically is a brushless motor end plate structure.

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, therefore, the volume of the rare earth permanent magnet brushless motor is reduced by one machine seat number compared with the three-phase asynchronous motor with the same capacity.

The end plate function singleness of present brushless motor leads to making brushless motor's performance reduction, is unfavorable for brushless motor's normal output, influences brushless motor's life.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a brushless motor end plate structure to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a brushless motor end plate structure comprises an end plate, wherein a stator is fixedly connected to the upper surface of the end plate, a silicon steel sheet is fixedly connected to the top end of the stator, a fixed column is fixedly connected to the center of the upper surface of the end plate and is hollow, a transmission shaft is rotatably connected to the inner wall of the fixed column, a rotor is fixedly connected to the side surface of the transmission shaft, a magnet is fixedly connected to the inner top wall of the rotor, a first bearing is fixedly connected to the side surface of the top end of the transmission shaft, a protective cover is fixedly connected to the surface of the outer ring of the first bearing, a connecting plate is inserted into the lower surface of the protective cover, a supporting plate is fixedly connected to the side surface of the connecting plate, a fixed disc is fixedly connected to the bottom of the supporting plate, a second bearing is embedded into the lower surface of the, the inner wall of the semicircular groove is connected with a semicircular ball in a sliding mode.

Preferably, six stators are fixedly connected to the circumference of the upper surface of the end plate at equal intervals, and coils are wound and connected to the surfaces of the six stators.

Preferably, the lower surface of the end plate is fixedly connected with the upper surface of the supporting plate, the rotor is in an inverted concave shape, and the inner bottom wall of the rotor rotates along with the side surface of the end plate.

Preferably, the inner top wall of the rotor is overlapped with the upper surface of the fixing column, the top end of the transmission shaft penetrates through the inner top wall of the rotor and extends to the upper surface of the rotor, and the rotor is fixedly connected with the transmission shaft.

Preferably, the surface of the end plate is provided with a hole matched with the transmission shaft, and the bottom end of the transmission shaft penetrates through the second bearing and is connected with an inner ring of the second bearing.

Preferably, eight support plates are fixedly connected to the edge of the upper surface of the fixed disc, positioning fixture blocks are fixedly connected to the opposite surfaces of the two support plates which are symmetrical in edge, the upper surface of the semi-sphere is fixedly connected with the lower surface of the rotor, and the semi-sphere is in the shape of a circular ring and semi-sphere.

Advantageous effects

The utility model provides a brushless motor end plate structure possesses following beneficial effect:

1. this brushless motor end plate structure, through setting up end plate, stator, silicon steel sheet, fixed column, transmission shaft, rotor, magnet, first bearing and safety cover, the coil circular telegram of the stator side of being convenient for attracts the magnetic stripe of rotor inner wall to drive the rotor and rotate, the rotor rotates and drives the transmission shaft and rotate, thereby reaches the output shaft pivoted effect that makes brushless motor.

2. This brushless motor end plate structure, through setting up the end plate, the connecting plate, the safety cover, the backup pad, fixed disc, the second bearing, the location fixture block, half slot and semicircle ball, be convenient for end plate and the inside device of safety cover protection brushless motor to make the rotor pass through the semicircle ball of bottom at the spacing rotation on the surface of location fixture block, support the end plate through fixed disc and backup pad, the brushless motor of being convenient for stably operates, thereby reach this brushless motor end plate structure and have supplementary brushless motor's effect.

Drawings

FIG. 1 is a schematic front sectional view of the structure of the present invention;

fig. 2 is a schematic view of the structure of the present invention from the bottom.

In the figure: 1 end plate, 2 stators, 3 silicon steel sheets, 4 fixed columns, 5 transmission shafts, 6 rotors, 7 magnets, 8 first bearings, 9 protective covers, 10 connecting plates, 11 supporting plates, 12 fixed discs, 13 second bearings, 14 positioning fixture blocks, 15 semicircular grooves and 16 semicircular balls.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a brushless motor end plate structure comprises an end plate 1, stators 2 are fixedly connected to the upper surface of the end plate 1, six stators 2 are fixedly connected to the circumference of the upper surface of the end plate 1 at equal intervals, coils are wound on the surfaces of the six stators 2, silicon steel sheets 3 are fixedly connected to the top ends of the stators 2, fixed columns 4 are fixedly connected to the center of the upper surface of the end plate 1, the fixed columns 4 are hollow, transmission shafts 5 are rotatably connected to the inner walls of the fixed columns 4, rotors 6 are fixedly connected to the side surfaces of the transmission shafts 5, the inner top walls of the rotors 6 are in lap joint with the upper surfaces of the fixed columns 4, the top ends of the transmission shafts 5 penetrate through the inner top walls of the rotors 6 and extend to the upper surfaces of the rotors 6, the rotors 6 are fixedly connected with the transmission shafts 5, magnets 7 are fixedly connected to the inner top walls of the rotors 6, first bearings 8 are, the lower surface of the protective cover 9 is inserted with a connecting plate 10, and the side surface of the connecting plate 10 is fixedly connected with a supporting plate 11.

The lower surface of the end plate 1 is fixedly connected with the upper surface of the supporting plate 11, the rotor 6 is in an inverted concave shape, the inner bottom wall of the rotor 6 rotates with the side surface of the end plate 1, the bottom of the supporting plate 11 is fixedly connected with a fixed disc 12, a second bearing 13 is embedded on the lower surface of the fixed disc 12, the surface of the end plate 1 is provided with a hole matched with the transmission shaft 5, the bottom end of the transmission shaft 5 penetrates through the second bearing 13 and is connected with the inner ring of the second bearing 13, the side surface of the supporting plate 11 is connected with a positioning fixture block 14, the upper surface of the positioning fixture block 14 is provided with a semicircular groove 15, the inner wall of the semicircular groove 15 is slidably connected with a semicircular ball 16, the edges of the upper surface of the fixed disc 12 are fixedly connected with eight supporting plates 11, the opposite surfaces of the two supporting plates 11 with symmetrical edges are fixedly connected, and the shape of the semi-sphere 16 is a circular ring semi-sphere.

The working principle is as follows: when the brushless motor is used, the current of the stator 2 winding is converted according to the position change of the rotor 6 through the position sensing of the side surface of the stator 2, the working voltage of the stator 2 winding is provided by an electronic switch circuit controlled by the output of a position sensor, when the rotor 6 rotates, the semi-sphere 16 at the bottom limits on the surface of the positioning fixture block 14 to operate, the rotor 6 drives the transmission shaft 5 to rotate, the transmission shaft 5 does not influence the protective cover 9 and the fixed disk 12 through the first bearing 8 and the second bearing 13, a cavity is formed between the end plate 1 and the fixed disk 12 through the supporting plate 11, the brushless motor is convenient to dissipate heat, and the effect that the end plate structure of the brushless motor has the auxiliary brushless motor is achieved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a brushless motor end plate structure, includes end plate (1), its characterized in that: the upper surface of the end plate (1) is fixedly connected with a stator (2), the top end of the stator (2) is fixedly connected with a silicon steel sheet (3), the center of the upper surface of the end plate (1) is fixedly connected with a fixed column (4), the fixed column (4) is hollow, the inner wall of the fixed column (4) is rotatably connected with a transmission shaft (5), the side surface of the transmission shaft (5) is fixedly connected with a rotor (6), the inner top wall of the rotor (6) is fixedly connected with a magnet (7), the top end side surface of the transmission shaft (5) is fixedly connected with a first bearing (8), the outer ring surface of the first bearing (8) is fixedly connected with a protective cover (9), the lower surface of the protective cover (9) is spliced with a connecting plate (10), the side surface of the connecting plate (10) is fixedly connected with a supporting plate (11), and the bottom of, the lower surface of fixed disc (12) inlays and is equipped with second bearing (13), the side of backup pad (11) is connected with location fixture block (14), semicircular groove (15) have been seted up to the upper surface of location fixture block (14), the inner wall sliding connection of semicircular groove (15) has semicircle ball (16).

2. The end plate structure of a brushless motor according to claim 1, wherein: six stators (2) are fixedly connected to the circumference of the upper surface of the end plate (1) at equal intervals, and the surfaces of the six stators (2) are wound and connected with coils.

3. The end plate structure of a brushless motor according to claim 1, wherein: the lower surface of end plate (1) is connected with the upper surface fixed of backup pad (11), the shape of rotor (6) is the type of falling concave, and the interior diapire of rotor (6) rotates with the side of end plate (1).

4. The end plate structure of a brushless motor according to claim 1, wherein: the inner top wall of the rotor (6) is overlapped with the upper surface of the fixing column (4), the top end of the transmission shaft (5) penetrates through the inner top wall of the rotor (6) and extends to the upper surface of the rotor (6), and the rotor (6) is fixedly connected with the transmission shaft (5).

5. The end plate structure of a brushless motor according to claim 1, wherein: the surface of the end plate (1) is provided with a hole matched with the transmission shaft (5), and the bottom end of the transmission shaft (5) penetrates through the second bearing (13) and is connected with the inner ring of the second bearing (13).

6. The end plate structure of a brushless motor according to claim 1, wherein: eight backup pads (11) of upper surface edge fixedly connected with of fixed disc (12), and the equal fixedly connected with location fixture block (14) of the face in opposite directions of two backup pads (11) of edge symmetry, the upper surface of semicircle ball (16) is connected with the lower fixed surface of rotor (6), and the shape of semicircle ball (16) is the ring semicircle ball type.