CN216216366U

CN216216366U - Core shell structure of brushless motor

Info

Publication number: CN216216366U
Application number: CN202122172665.9U
Authority: CN
Inventors: 吴学平
Original assignee: Shenzhen Fumingda Technology Co ltd
Current assignee: Shenzhen Fumingda Technology Co ltd
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2022-04-05
Anticipated expiration: 2031-09-09

Abstract

The utility model discloses a core shell structure of a brushless motor, which comprises a motor rotating shaft, wherein a magnet frame is fixedly connected to the outer side of the motor rotating shaft, magnet blocks which are arranged at equal intervals are inserted into the right side of the magnet frame, two connecting bearings are fixedly connected to the outer side of the motor rotating shaft, and a first bearing sleeve is fixedly connected to the outer side of the connecting bearing on the right side. The utility model discloses a through motor pivot core main part, with the magnet piece joint on the magnet frame one by one, then install left connection bearing in the motor pivot, make the pressure ring on the first bearing housing right side carry out spacing compressing tightly to the magnet piece, make it be connected with the magnet frame firm, prevent skew and vibration, reduce the operation wearing and tearing and the noise of device to realized that the device possesses more firm to the fixed effect of magnet, and the radiating effect is better, the longer advantage of life-span.

Description

Core shell structure of brushless motor

Technical Field

The present invention relates to the field of brushless motors, and more particularly, to a core housing structure of a brushless motor.

Background

The brushless motor, also called as a dc brushless motor, is widely used in the fields of industrial control, automotive electronics, household appliance power, and fans due to its high efficiency, low operating noise, small size, good reliability, and long life, wherein the magnetic rotor structure inside the brushless motor is the source of the brushless motor power.

But be connected between inside magnet of current brushless motor and the core casing and only carry out the block installation to there is great clearance between magnet and the adjacent connection bearing, results in the magnet probably to have the possibility of displacement and vibration, and current structure inside heat dissipation is optimized inadequately, and the inside radiating effect of core is not good, therefore we propose a core casing structure of brushless motor and be used for solving above problem.

SUMMERY OF THE UTILITY MODEL

In view of the problems in the prior art, an object of the present invention is to provide a core casing structure of a brushless motor.

In order to achieve the purpose, the utility model adopts the following technical scheme.

The utility model provides a brushless motor's core shell structure, includes the motor pivot, the outside fixed connection magnet frame of motor pivot, the magnet piece that the equidistance was arranged is pegged graft on the right side of magnet frame, two connection bearings of the outside fixedly connected with of motor pivot, right side the first bearing housing of outside fixedly connected with of connection bearing, right side the outside fixedly connected with second bearing housing of connection bearing, the bobbin that the outside fixedly connected with equidistance was arranged between first bearing housing and the second bearing housing, the right side of first bearing housing is rotated and is connected with the clamp ring, the right side of clamp ring and the left end in close contact with of magnet piece.

As a further description of the above technical solution: first ventilation holes are formed in the compression ring in equidistant rows, and the first ventilation holes are communicated with a space formed between the compression ring and the motor rotating shaft.

The technical solution described above is further described in: the miniature blades are fixedly connected to the outer side of the compression ring and are arranged at intervals with the first ventilation holes.

As a further description of the above technical solution: second ventilation holes are formed in the first bearing sleeve and are arranged equidistantly, and the diameter of the first bearing sleeve is smaller than that of the second bearing sleeve.

As a further description of the above technical solution: third ventilation holes which are arranged equidistantly are formed in the second bearing sleeve, and the third ventilation holes and the winding frame are arranged at intervals.

As a further description of the above technical solution: the right side of the second bearing sleeve is fixedly connected with a creel stand, and the front side of the creel stand is fixedly connected with a PCB mounting groove.

Compared with the prior art, the utility model has the advantages that:

this scheme promotes the magnet piece through the electromagnetic action down and drives the motor pivot and rotate and carry out work, it rotates to drive clamp ring when the magnet piece rotates around the motor pivot, the clamp ring carries out spacing fixed to the magnet piece, make its operation stable, and the clamp ring rotates and drives miniature blade and rotate, make inside air current flow through first ventilation hole outflow by the inside that left second ventilation hole got into the clamp ring, and the air current flows to third ventilation hole and flows through third ventilation hole, whole flow process can effectual heat of taking away device operation production, thereby realized the device thereby realized that the device possesses more firm to magnet fixed effect, and the radiating effect is better, longer advantage of life-span.

Drawings

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

FIG. 2 is a schematic front perspective view of a magnet holder according to the present invention;

FIG. 3 is a schematic side view of a connection between a clamp ring and a first bearing sleeve according to the present invention;

fig. 4 is a side view of the first bearing sleeve of the present invention.

The reference numbers in the figures illustrate:

1. a motor shaft; 2. a magnet frame; 3. a magnet block; 4. connecting a bearing; 5. a first bearing sleeve; 51. a second vent hole; 6. a second bearing housing; 61. a third vent hole; 62. a wire arrangement frame; 63. a PCB board mounting groove; 7. a bobbin; 8. a compression ring; 81. a micro blade; 9. a first vent hole.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention;

referring to fig. 1 to 4, in the present invention, a core housing structure of a brushless motor includes a motor shaft 1, a magnet frame 2 is fixedly connected to an outer side of the motor shaft 1, magnet blocks 3 are inserted into a right side of the magnet frame 2 and arranged equidistantly, two connecting bearings 4 are fixedly connected to an outer side of the motor shaft 1, a first bearing sleeve 5 is fixedly connected to an outer side of the right connecting bearing 4, a second bearing sleeve 6 is fixedly connected to an outer side of the right connecting bearing 4, a winding frame 7 is fixedly connected to an outer side between the first bearing sleeve 5 and the second bearing sleeve 6 and arranged equidistantly, a compression ring 8 is rotatably connected to a right side of the first bearing sleeve 5, and a right side of the compression ring 8 is in close contact with a left end of the magnet block 3.

In the utility model, the magnet blocks 3 are clamped on the magnet frame 2 one by one through the machine core main body of the motor rotating shaft 1, then the connecting bearing 4 on the left side is arranged on the motor rotating shaft 1, the compressing ring 8 on the right side of the first bearing sleeve 5 is used for limiting and compressing the magnet blocks 3, so that the magnet blocks are stably connected with the magnet frame 2, the deviation and the vibration are prevented, the running abrasion and the noise of the device are reduced, and the heat dissipation effect inside the device can be effectively increased by matching the compressing ring 8 through the structural improvement of the first bearing sleeve 5 and the second bearing sleeve 6, thereby realizing the advantages that the device has more stable fixing effect on the magnet, better heat dissipation effect and longer service life, solving the problems that the magnet is only clamped and installed between the magnet inside and the machine core shell in the prior art, and larger gaps exist between the magnet and the adjacent connecting bearing, so that the magnet can possibly have displacement and vibration, and the internal heat dissipation of the existing structure is not optimized enough, and the internal heat dissipation effect of the movement is not good.

Please refer to fig. 1-4, wherein: first ventilation holes 9 are formed in the compression ring 8 in equidistant rows, and the first ventilation holes 9 are communicated with a space formed between the compression ring 8 and the motor rotating shaft 1.

In the utility model, the space inside the compression ring 8 is communicated with the outside through the first vent holes 9, so that heat generated by the operation of the magnet block 3 can be led out to the outer side of the compression ring 8, and the heat dissipation effect is improved.

Please refer to fig. 1 and fig. 3, wherein: the outer side of the compression ring 8 is fixedly connected with a micro blade 81, and the micro blade 81 and the first ventilation hole 9 are arranged at intervals.

In the utility model, the micro-blades 81 can drive the air between the bobbin 7 and the magnet block 3 to flow rapidly, so that the heat generated by the operation inside the device is led out rapidly, and the heat dissipation efficiency is increased.

Please refer to fig. 1, fig. 2, fig. 3, and fig. 4, wherein: the first bearing sleeve 5 is internally provided with second ventilation holes 51 which are arranged at equal intervals, and the diameter of the first bearing sleeve 5 is smaller than that of the second bearing sleeve 6.

In the utility model, the second vent hole 51 is matched with the first vent hole 9 on the compression ring 8, so that air and heat in the space between the compression ring 8 and the motor rotating shaft 1 can be smoothly and quickly discharged, and the continuous flow of the internal air is formed by being driven by the micro-blades 81, so that the continuous heat radiation performance of the device is better.

Please refer to fig. 1 and fig. 2, wherein: third ventilation holes 61 which are arranged equidistantly are formed in the second bearing sleeve 6, and the third ventilation holes 61 and the winding frame 7 are arranged at intervals.

In the utility model, the third vent hole 61 is matched with the micro blade 81 and the second vent hole 51 and the first vent hole 9 for use, so that when the device runs, the micro blade 81 can drive the airflow in the device to form a flowing trend from left to right, and the flowing air can more quickly take away the heat generated by the device, thereby ensuring that the heat dissipation effect of the device is better.

Please refer to fig. 1 and fig. 2, wherein: the right side of the second bearing sleeve 6 is fixedly connected with a creel stand 62, and the front side of the creel stand 62 is fixedly connected with a PCB mounting groove 63.

According to the utility model, the internal flat cable can be conveniently fixed and regulated through the flat cable frame 62, so that the internal structure is cleaner and tidier, and the PCB controller can be conveniently installed through the PCB installation groove 63, so that the structure of the device is more reasonable and practical.

The working principle is as follows: during the use, the coil circular telegram in the 7 outsides of bobbin earlier, then promote magnet piece 3 to drive motor shaft 1 and rotate and carry out work under the electromagnetic action, it rotates to drive clamp ring 8 when magnet piece 3 rotates around motor shaft 1, clamp ring 8 carries out spacing fixed to magnet piece 3, make its operation stable, and clamp ring 8 rotates and drives miniature blade 81 and rotate, make inside air current get into clamp ring 8 by left second ventilation hole 51 inside through first ventilation hole 9 outflow, and the air current flows to third ventilation hole 61 and flows through third ventilation hole 61, the heat that the operation of whole flow process can effectual taking away device produced, thereby realized the device thereby realized that the device possesses more firm to magnet fixed effect, and the radiating effect is better, longer advantage of life-span.

The foregoing is only a preferred embodiment of the present invention; the scope of the utility model is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a core shell structure of brushless motor, includes motor pivot (1), its characterized in that: the utility model discloses a motor, including motor shaft (1), outside fixed connection magnet frame (2), the right side of magnet frame (2) is pegged graft and is had magnet piece (3) that the equidistance was arranged, two connection bearing (4) of outside fixedly connected with of motor shaft (1), right side first bearing housing (5) of outside fixedly connected with of connection bearing (4), right side outside fixedly connected with second bearing housing (6) of connection bearing (4), outside fixedly connected with equidistance bobbin (7) of arranging between first bearing housing (5) and second bearing housing (6), the right side of first bearing housing (5) is rotated and is connected with clamp ring (8), the right side of clamp ring (8) and the left end in close contact with of magnet piece (3).

2. A movement housing structure of a brushless motor according to claim 1, wherein: first ventilation holes (9) are formed in the compression ring (8) in equidistant rows, and the first ventilation holes (9) are communicated with a space formed between the compression ring (8) and the motor rotating shaft (1).

3. A movement housing structure of a brushless motor according to claim 2, wherein: the outer side of the compression ring (8) is fixedly connected with micro blades (81), and the micro blades (81) and the first ventilation holes (9) are arranged at intervals.

4. A movement housing structure of a brushless motor according to claim 1, wherein: second ventilation holes (51) which are arranged equidistantly are formed in the first bearing sleeve (5), and the diameter of the first bearing sleeve (5) is smaller than that of the second bearing sleeve (6).

5. A movement housing structure of a brushless motor according to claim 1, wherein: third ventilation holes (61) which are arranged equidistantly are formed in the second bearing sleeve (6), and the third ventilation holes (61) and the winding frame (7) are arranged at intervals.

6. A movement housing structure of a brushless motor according to claim 1, wherein: the right side of the second bearing sleeve (6) is fixedly connected with a wire arrangement frame (62), and the front side of the wire arrangement frame (62) is fixedly connected with a PCB mounting groove (63).