CN105090091A

CN105090091A - Motor

Info

Publication number: CN105090091A
Application number: CN201410220087.3A
Authority: CN
Inventors: 吕昭文; 王君智; 邱鼎为
Original assignee: Delta Optoelectronics Inc
Current assignee: Delta Electronics Inc; Delta Optoelectronics Inc
Priority date: 2014-05-22
Filing date: 2014-05-22
Publication date: 2015-11-25
Also published as: CN110206744A

Abstract

A motor comprises a shaft sleeve, a bearing, a rotating shaft and a wear-resistant sheet, wherein the shaft sleeve is provided with an accommodating space. The bearing is arranged in the accommodating space. The bearing is provided with a shaft hole and at least one exhaust structure. The rotating shaft penetrates through the shaft hole of the bearing. The wear-resistant sheet is arranged at the bottom of the accommodating space and is positioned between the shaft sleeve and the bearing. One end of the rotating shaft is pressed against the wear-resistant sheet. At least one notch is formed in the wear-resistant sheet, and the notch is at least partially communicated with the exhaust structure and the shaft hole.

Description

Motor

Technical field

The present invention relates to a kind of motor, particularly a kind of motor of fan.

Background technique

Rotating shaft, in the process of assembling, can be inserted in the axis hole of bearing by the bearing arrangement of fan.Before insertion rotating shaft, in axis hole, have air and lubricant oil.When rotating shaft is inserted, the air of part and unnecessary lubricant oil can be discharged from the gap between rotating shaft and axis hole because of extruding, and remaining air just can be squeezed to the bottom of bearing along with rotating shaft and cannot discharge, make to there is air in bearing arrangement and the working life affecting fan.

Summary of the invention

An axle sleeve, a bearing, a rotating shaft and a wear plate is comprised according to a kind of motor of the present invention.Axle sleeve has a containing space.Bearing is arranged at containing space.Bearing has an axis hole and at least one exhaust structure.Rotating shaft wears the axis hole of bearing.Wear plate is arranged at the bottom of containing space, and between axle sleeve and bearing.One end of rotating shaft is connected on wear plate.Wear plate has at least one breach, and breach is communicated with this exhaust structure and axis hole at least partly.

In one embodiment, wear plate also can have an abutting part and a bearing part.This bearing part ring establishes abutting part.One end of rotating shaft is connected on the abutting part of wear plate.This bearing part carries this bearing.

In one embodiment, the radial area of abutting part can be less than the radial area of axis hole.

In one embodiment, breach can form the outer rim from abutting part to wear plate.

In one embodiment, exhaust structure can comprise the groove being communicated with the bottom of bearing and the top of bearing.

In one embodiment, exhaust structure can be formed at the outer surface of bearing.

In one embodiment, motor can link at least one or more flabellum.

In one embodiment, the thickness of wear plate can between 0.05mm to 0.3mm.

In one embodiment, the height of motor can between 2mm to 6mm.

From the above, motor of the present invention is designed with the corresponding of the breach of wear plate by the exhaust structure of bearing, can be discharged outside axle sleeve by air when rotating shaft is assembled in the axis hole of bearing, and then extends the working life of motor.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of a kind of motor of present pre-ferred embodiments.

Fig. 2 A and Fig. 2 B is the schematic diagram of bearing.

Fig. 3 A to Fig. 6 B is the schematic diagram of wear plate

Description of reference numerals:

1: motor

2: axle sleeve

21: containing space

3: bearing

31: axis hole

32: exhaust structure

4: rotating shaft

5: rotor shell

6: wear plate

61: abutting part

62: bearing part

63: bottom

B: pedestal

C: lid

FB: flabellum

O: breach

RM: rotor magnetic group

SM: stator magnet group

Embodiment

Hereinafter with reference to correlative type, a kind of motor according to present pre-ferred embodiments is described, wherein identical element is illustrated with identical reference marks.

Fig. 1 is the schematic diagram of a kind of motor of present pre-ferred embodiments.Please refer to Fig. 1, motor 1 comprises axle sleeve 2, bearing 3, rotating shaft 4, rotor shell 5 and a wear plate 6.Rotating shaft 4 and rotor shell 5 belong to rotor structure, and axle sleeve 2, bearing 3 and wear plate 6 belong to stator structure, and wherein motor 1 can comprise a pedestal B, and itself and axle sleeve 2 can be the structure that single structure body maybe can be separated from each other, to carry stator structure.

In the present embodiment, rotor shell 5 is connected with rotating shaft 4.Rotor shell 5 can be provided with rotor magnetic group RM, with the stator magnet group SM on corresponding pedestal B.It is worth mentioning that, rotor shell 5 can be provided with at least one or more flabellum FB and use as fan.

Axle sleeve 2 has a containing space 21, and bearing 3 is arranged at containing space 21.In the present embodiment, the external diameter of bearing 3 is slightly less than the internal diameter of axle sleeve 2, and is fixed in containing space 21 by bearing 3 by a lid C.But, implement in aspects at other, bearing 3 also can with axle sleeve 2 interference fit, and do not need additionally to be fixed by lid C.In this, the present invention does not limit the means of fixation of bearing 3.

Bearing 3 has an axis hole 31, and rotating shaft 4 wears the axis hole 31 of bearing 3.In the present embodiment, the external diameter of rotating shaft 4 is less than the diameter of axis hole 31, thus has gap between rotating shaft 4 and bearing 3, can be filled in gap and help rotating shaft 4 to rotate when lubricant oil injects containing space 21.

Wear plate 6 is arranged at the bottom of containing space 21, and between axle sleeve 2 and bearing 3.In assembling, first arrange wear plate 6 in the bottom of containing space 21, then arrange bearing 3 on wear plate 6, thus, wear plate 6 is namely between axle sleeve 2 and bearing 3.

One end of rotating shaft 4 is connected on wear plate 6, and that is, rotating shaft 4 is only touched or abutted against wear plate 6.When rotating shaft 4 operates along with motor 1 and rotates, wear plate 6 can not follow rotating shaft 4 to rotate.

Fig. 2 A and Fig. 2 B is the schematic diagram of bearing.Referring to Fig. 1, Fig. 2 A and Fig. 2 B, bearing 3 has at least one exhaust structure 32.Exhaust structure 32 can be the groove being communicated with the bottom of bearing 3 and the top of bearing 3, as shown in Figure 2 A.In this, the exhaust structure (groove) 32 of Fig. 2 A is for three, and is formed at the outer surface of bearing 3, and can the quantity of designed, designed exhaust structure 32 according to demand on implementing, and the present invention does not limit.In addition, exhaust structure 32 can be realized by the cross section not by axle center.As shown in Figure 2 B, when bearing 3 is arranged at containing space 21, above-mentioned cross section and the internal surface of axle sleeve 2 form one and are communicated with the bottom of bearing 3 and the passage at top, can reach the effect of exhaust equally.

Fig. 3 A is the schematic diagram of wear plate, and the wear plate 6 that the part of wear plate 6 shown in Fig. 1 is Fig. 3 A prolongs the generalized section of straight line AA'.Shown in Fig. 1 and Fig. 3 A, wear plate 6 has at least one breach O, and breach O is communicated with this exhaust structure 32 and axis hole 31 at least partly.Thus, when the axis hole 31 of bearing 3 is inserted in rotating shaft 4 assembling motor 1, the air in axis hole 1 can be extruded into the bottom of bearing 3, and is communicated with the exhaust structure 32 of bearing 3 via the breach O of wear plate 6, to discharge outside axle sleeve 2, wherein airflow direction can refer to shown in arrow.So, by the design of the breach O of wear plate 6, the gas in axle sleeve 2 can be discharged outside axle sleeve 2 smoothly, and then extend the working life of motor 1.

Furthermore, wear plate 6 can have abutting part 61 and a bearing part 62, and this bearing part 62 ring establishes abutting part 61.After 1 group, motor is vertical, one end of rotating shaft 4 can be connected on the abutting part 61 of wear plate 6, to maintain the slow-roll stabilization of rotating shaft 4 and not easily radial deflection.This bearing part 62 can carrier bearing 3, and bearing 3 is not easily rocked.In this, breach O forms the outer rim from abutting part 61 to wear plate 6, and the radial area of abutting part 61 is less than the radial area of axis hole 31.Thus, breach O just may correspond to axis hole 31 and exhaust structure 32 and forms exhaust passage.

In making, wear plate 6 such as can cut out breach O by the plate of a circle and shaping, or penetrates one-body molded, certainly also makes by die casting.Wear plate 6 can comprise the material such as metal or plastic cement, and the present invention does not limit.

Fig. 3 B is the schematic diagram that Fig. 3 A wear plate arranges bottom.Please refer to shown in Fig. 3 B, wear plate 6 can arrange one bottom 63, abutting part 61, bearing part 62 and breach O are formed on bottom 63, and namely channel-shaped structure is formed on breach O and bottom 63.Thus, the breach O of the wear plate 6 of the present embodiment can be communicated with axis hole 31 and exhaust structure 32 equally and form exhaust passage.In addition, the wear plate 6 of the present embodiment makes by modes such as injection or die casting, and can comprise the material such as metal or plastic cement.

Fig. 4 A to Fig. 6 B is the schematic diagram of wear plate.Please refer to Fig. 4 A to Fig. 6 B, Fig. 4 A, Fig. 5 A and Fig. 6 A are respectively the wear plate 6 of three, four and five breach O, and Fig. 4 B, Fig. 5 B and Fig. 6 B are respectively the wear plate 6 that Fig. 4 A, Fig. 5 A and Fig. 6 A arrange bottom 63.In this, though the breach O of each wear plate 6 and bearing part 62 are for evenly interconnected, in fact also can adopt uneven configuration design, not affect the degassing function of breach O equally.

It should be noted that, the external diameter of wear plate 6 can be substantially equal to or be slightly less than the diameter of containing space 21, can not significantly rock or offset after making wear plate 6 insert containing space 21, and there is the effect of location, make the number of assembling steps of wear plate 6 simple, be applicable to small-sized motor or fan.In this, the height of motor 1 can between 2mm to 6mm, and the thickness of wear plate 6 can between 0.05mm to 0.3mm.

In sum, motor of the present invention is designed with the corresponding of the breach of wear plate by the exhaust structure of bearing, can be discharged outside axle sleeve by air when rotating shaft is assembled in the axis hole of bearing, and then extends the working life of motor.

The foregoing is only illustrative, and not as restriction.Anyly do not depart from spirit of the present invention and category, and to its equivalent modifications of carrying out or change, all should be contained in the protection domain of the claims in the present invention.

Claims

1. a motor, comprising:

One axle sleeve, has a containing space;

One bearing, is arranged at this containing space, and this bearing has an axis hole and at least one exhaust structure;

One rotating shaft, wears this axis hole of this bearing; And

One wear plate, is arranged at the bottom of this containing space, and between this axle sleeve and this bearing, one end of this rotating shaft is connected on this wear plate,

Wherein this wear plate has at least one breach, and this breach is communicated with this exhaust structure and this axis hole at least partly.

2. motor as claimed in claim 1, it is characterized in that, this wear plate also has an abutting part and a bearing part, and this bearing part ring establishes this abutting part, and one end of this rotating shaft is connected on this abutting part of this wear plate, and this bearing part carries this bearing.

3. motor as claimed in claim 2, it is characterized in that, the radial area of this abutting part is less than the radial area of this axis hole.

4. motor as claimed in claim 2, is characterized in that, this breach is formed from this abutting part to the outer rim of this wear plate.

5. motor as claimed in claim 1, is characterized in that, this exhaust structure comprises the groove being communicated with the bottom of this bearing and the top of this bearing.

6. motor as claimed in claim 5, it is characterized in that, this exhaust structure is formed at the outer surface of this bearing.

7. motor as claimed in claim 1, it is characterized in that, this motor links at least one or more flabellum.

8. motor as claimed in claim 1, it is characterized in that, the thickness of this wear plate is between 0.05mm to 0.3mm.

9. motor as claimed in claim 1, it is characterized in that, the height of this motor is between 2mm to 6mm.