CN201118348Y

CN201118348Y - Motor component and buckle

Info

Publication number: CN201118348Y
Application number: CNU2007201937638U
Authority: CN
Inventors: 张楯成; 游博皓; 叶时行
Original assignee: Delta Optoelectronics Inc
Current assignee: Delta Electronics Inc; Delta Optoelectronics Inc
Priority date: 2007-11-12
Filing date: 2007-11-12
Publication date: 2008-09-17
Anticipated expiration: 2017-11-12

Abstract

The utility model discloses a retaining ring which is axially installed on a rotating shaft. The retaining ring comprises a plurality of first fixing parts, a plurality of second fixing parts and a plurality of buffer units. The inner edges of the first fixing parts and the inner edges of the second fixing parts discontinuously form a perforation to hitch the rotating shaft; a crack is developed among the second fixing parts, communicating with the perforation to help prop the perforation open; the buffer units are arranged between the first and the second fixing parts. The utility model also discloses a motor subassembly with such a retaining ring. The retaining ring makes use of the fixing parts to discontinuously form a perforation to hitch the rotating shaft, which is good for aligning the rotating shaft and saving installation time. Meanwhile, the buffer units are arranged between the first and second fixing parts to absorb energy so as to avoid the convergence of stress, which will result in damage to the retaining ring, thus improving qualification rate.

Description

Motor sub-assembly and clasp

Technical field

The utility model relates to a kind of motor sub-assembly and clasp.

Background technology

The principle of motor applications galvanomagnetic effect converts electrical energy into mechanical energy, and has been widely used in the mechanical structure of daily life, as fan, CD player or Winchester disk drive etc.Generally speaking, motor comprises a rotor and a stator, by the magnetic field reciprocation between rotor and the stator, orders about the rotor relative stator and rotates.Wherein, rotor has a rotating shaft, and rotating shaft wears bearing, and is supported by bearing.Motor comprises that more a clasp is arranged in the groove of rotating shaft, and the contact bearing, rotates the axial motion that is caused with restrict rotor.Yet there are some problems in existing clasp in assembling.

Clasp can be divided into axial installation and two classes radially are installed according to the mounting means difference.Please refer to shown in Figure 1ly, a kind of existing clasp of axially installing 14 be a kind of C type ring, mainly comprises 141 and one crack 142 of boring a hole.Perforation is 141 in order to sheathed rotating shaft, and crack 142 can help to bore a hole and 141 strut with sheathed rotating shaft.

Yet because perforation 141 is a circle, so clasp 14 is difficult for and the axes alignment of rotating shaft, and then required time is installed in increase.In addition, the structure dullness of clasp 14, the little and stress of its structural strength converges easily, so that when mounted if make a mistake action, for example pulls, and just causes damage easily.In addition, clasp 14 after installing, because of the no point of application not quick detachable yet.

Therefore, how to provide a kind of motor sub-assembly and clasp, can aim at rotating shaft easily and avoid stress to concentrate, and then shorten the set-up time and improve qualification rate, real is one of current important topic.

The utility model content

The purpose of this utility model is to provide a kind of motor sub-assembly and the clasp that can aim at rotating shaft easily and avoid stress to concentrate.

Order of the present utility model is achieved in that promptly provides a kind of clasp axially to be installed on a rotating shaft.Clasp comprises a plurality of first fixed parts, second fixed part and a plurality of buffer part.The first fixing inner edge with second fixed part forms a perforation discontinuously, in order to sheathed rotating shaft, has a crack between second fixed part and communicates with perforation, struts perforation in order to auxiliary.Buffer part is arranged between first fixed part and second fixed part.

The utility model also provides a kind of motor sub-assembly to comprise a bearing, a rotating shaft and a clasp.Rotating shaft wears bearing.Clasp axially is installed on rotating shaft, and comprises a plurality of first fixed parts, a plurality of second fixed part and a plurality of buffer part.The inner edge of first fixed part and second fixed part forms a perforation discontinuously, in order to sheathed rotating shaft, has a crack between second fixed part and communicates with perforation, strut perforation in order to auxiliary, and buffer part is arranged between first fixed part and second fixed part.

Advantage of the present utility model is, its described motor sub-assembly and clasp form the sheathed rotating shaft of perforation by a plurality of fixed parts in discontinuous mode, and then conveniently aims at rotating shaft and shorten the set-up time; In addition, buffer part is arranged between two fixed parts absorbing strength, and then avoids stress to concentrate and cause clasp to damage, to improve qualification rate.

Description of drawings

Fig. 1 is a kind of schematic diagram of existing clasp;

Fig. 2 is that the clasp of motor sub-assembly of the present utility model combines figure with rotating shaft;

Fig. 3 is the clasp schematic diagram of Fig. 2;

Fig. 4 is that a kind of clasp of the utility model preferred embodiment is aimed at the schematic diagram of rotating shaft;

Fig. 5 is the schematic diagram of the another kind of clasp of the utility model preferred embodiment.

The main element symbol description

14,24,24a: clasp

141, H: perforation

142,243: the crack

2: motor

21: bearing holder (housing, cover)

22: bearing

23: rotating shaft

231: groove

244,245,246: the dismounting mouth

B1～B3: buffer part

F1, F3: first fixed part

F3, F4: second fixed part

O1～O3: breach

Embodiment

Hereinafter with reference to relevant drawings, a kind of motor and clasp according to the utility model preferred embodiment are described.

Please refer to Fig. 2, Fig. 2 is that the clasp of motor sub-assembly of the present utility model combines schematic diagram with rotating shaft.A kind of motor sub-assembly 2 of the utility model preferred embodiment comprises a bearing holder (housing, cover) 21, a bearing 22, a rotating shaft 23 and a clasp 24.The motor sub-assembly 2 of present embodiment can be applicable to inner rotor motor or external-rotor motor.Bearing 22 is arranged in the bearing holder (housing, cover) 21.Rotating shaft 23 wears bearing 22, and by bearing 22 supportings.Rotating shaft 23 has a groove 231, and clasp 24 axially is installed on the groove 231 of rotating shaft 23.

Please refer to Fig. 3, Fig. 3 is the clasp schematic diagram of Fig. 2.The clasp 24 of present embodiment has a plurality of first fixed part F1, F2, a plurality of second fixed part F3, F4 and a plurality of buffer part B1～B3, the first fixed part F1, F2 are balanced configuration and have identical structure, and second fixed part also is balanced configuration and has identical structure, and the inner edge of the first fixed part F1, F2 and the second fixed part F3, F4 forms a perforation H discontinuously, in order to sheathed rotating shaft 23.And in the present embodiment, because the inner edge of the first fixed part F1, F2 and the second fixed part F3, F4 is all arc, and form the perforation H of a non-continuously circular, in order to contact with rotating shaft 23.And, in the outer rim design concave shape of the first fixed part F1, F2, and relative with inner edge.So, the first fixed part F1, F2 then are rendered as bow-shaped structural, and this bow-shaped structural also helps to disperse the stress assembled.

Please be simultaneously with reference to Fig. 2, Fig. 4 A, Fig. 4 B, Fig. 4 A and Fig. 4 B are that a kind of clasp of the utility model preferred embodiment is aimed at the schematic diagram of rotating shaft.H is the formed non-continuously circular of inner edge of the first fixed part F1, F2 and the second fixed part F3, F4 because of perforation, thus when clasp 24 is installed, can be auxiliary by the inner edge of the first fixed part F1, F2 and the second fixed part F3, F4, shown in Fig. 4 A.The application of force presses down again after clasp 24 is aimed at rotating shaft 23, and rough the strutting of perforation H meeting of clasp 24 allows rotating shaft 23 be entered within the perforation.At last, when clasp 24 moved to the groove 231 of rotating shaft 23, clasp recovered original form and is fixed in the rotating shaft 23, shown in Fig. 2 and Fig. 4 B.

Hold, buffer part B1～B3 is separately positioned between the first fixed part F1, F2 and the second fixed part F3, the F4, has more a breach O1～O3 at each buffer part B1～B3, and breach O1～O3 is connected with this perforation H, and the shape of breach O1～O3 is not limited, as shown in Figure 3.With the present embodiment is example, and buffer part B1～B3 is the arm shape.Buffer part B1～B3 and breach O1～O3 can form a buffer structure when clasp 24 is installed, absorb and scatter one's forces, and then avoid stress to concentrate and cause clasp 24 distortion or damage.

In addition, the second fixed part F3, F4 have a crack 243.Crack 243 communicates with perforation H, so crack 243 H that can help to bore a hole struts with sheathed rotating shaft 23.In the present embodiment, crack 243 is relative with a buffer part B1 and establish.In addition, clasp 24 more comprises at least one dismounting mouth 244, and it links with fixed part F3 and crack 243.Dismounting mouth 244 helps to dismantle clasp 24 after installation.

What deserves to be mentioned is, the dismounting mouth also can not need to link with the crack, as shown in Figure 5, it shows that clasp 24a has a plurality of dismountings mouths 245,246, it is arranged at two sides in crack 243, the position that is provided with of right dismounting mouth is not limited in the position shown in the figure, and it is to dismantle to mainly considering easily after assembling.

In sum,, form the sheathed rotating shaft of perforation in discontinuous mode, and then conveniently aim at rotating shaft and shorten the set-up time by a plurality of first fixed parts because of according to a kind of motor sub-assembly of the present utility model and clasp.In addition, buffer part is arranged between two fixed parts absorbing strength, and then avoids stress to concentrate and cause clasp to damage, to improve qualification rate.

Claims

1, a kind of clasp axially is installed on rotating shaft, it is characterized in that, this clasp comprises: a plurality of first fixed parts; A plurality of second fixed parts, the inner edge of those first fixed parts and those second fixed parts forms the perforation in order to sheathed this rotating shaft discontinuously; And a plurality of buffer part, be arranged between those first fixed parts and those second fixed parts; Wherein, have the crack between those second fixed parts and communicate, strut this perforation in order to assist with this perforation.

2, clasp as claimed in claim 1 is characterized in that, the inner edge of those first fixed parts is curved, and the outer rim of those first fixed parts is indent, and relative with its corresponding inner edge and establish.

3, clasp as claimed in claim 1 is characterized in that, those first fixed parts are arc.

4, clasp as claimed in claim 1 is characterized in that, those first fixed parts are balanced configuration, and those second fixed parts are balanced configuration.

5, clasp as claimed in claim 1 is characterized in that, those first fixed parts respectively have identical structure with those second fixed parts.

6, clasp as claimed in claim 1 is characterized in that, those buffer part are the arm shape.

7, clasp as claimed in claim 1 is characterized in that, one of them is relative with this crack and establish for those buffer part.

8, clasp as claimed in claim 1 is characterized in that, each those buffer part has more breach, and this breach is connected with this perforation.

9, clasp as claimed in claim 1 is characterized in that, more comprises the dismounting mouth, and itself and this crack links.

10, clasp as claimed in claim 1 is characterized in that, more comprises a plurality of dismountings mouths, and it is arranged at two sides in this crack respectively.

11, clasp as claimed in claim 1 is characterized in that, the groove that is installed on this rotating shaft is in order to the contact bearing.

12, a kind of motor sub-assembly comprises: bearing; Rotating shaft wears this bearing; And clasp, axially be installed on this rotating shaft, it is characterized in that this clasp comprises: a plurality of first fixed parts; A plurality of second fixed parts, the inner edge of those first fixed parts and those second fixed parts forms perforation discontinuously, in order to sheathed this rotating shaft; And a plurality of buffer part, be arranged between those first fixed parts and those second fixed parts; Wherein, have the crack between those second fixed parts and communicate, strut this perforation in order to auxiliary with this perforation.

13, motor sub-assembly as claimed in claim 12 is characterized in that, this clasp is installed on the groove of this rotating shaft in order to this bearing of contact, and this bearing is arranged in the bearing holder (housing, cover).

14, motor sub-assembly as claimed in claim 12 is characterized in that, this motor sub-assembly is inner rotor motor or external-rotor motor.