CN201369610Y - Novel closed slot structure of motor - Google Patents

Novel closed slot structure of motor Download PDF

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Publication number
CN201369610Y
CN201369610Y CNU2009200361593U CN200920036159U CN201369610Y CN 201369610 Y CN201369610 Y CN 201369610Y CN U2009200361593 U CNU2009200361593 U CN U2009200361593U CN 200920036159 U CN200920036159 U CN 200920036159U CN 201369610 Y CN201369610 Y CN 201369610Y
Authority
CN
China
Prior art keywords
rotor
motor
sliver
groove
rotor punching
Prior art date
Application number
CNU2009200361593U
Other languages
Chinese (zh)
Inventor
王明珠
钱伟
刘广峰
Original Assignee
江苏航天动力机电有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 江苏航天动力机电有限公司 filed Critical 江苏航天动力机电有限公司
Priority to CNU2009200361593U priority Critical patent/CN201369610Y/en
Application granted granted Critical
Publication of CN201369610Y publication Critical patent/CN201369610Y/en

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Abstract

The utility model discloses a novel closed slot structure of a motor, which comprises a rotor punching sheet (1) of the motor and a guide bar (2) which is arranged in the rotor punching sheet (1); and the rotor punching sheet (1) is provided with a closed guide bar slot (3). By adopting the structure, the novel closed slot structure avoids the spark due to different electric potentials between the guide bar and the guide bar slot, prevents the explosive gas around the spark ignition and improves the running stability; and furthermore, the rotor is beneficial for the circulation of the aluminium during the aluminium casting process, the pore at the corner is reduced, the loose tissue can be prevented, the stress concentration is reduced simultaneously, the area of the rotor tooth is increased, and the magnetic density of the rotor tooth is reduced, thus reducing the tooth loss.

Description

The novel groove structure of remaining silent of a kind of motor

Technical field

The utility model relates to a kind of electric machine structure, the novel groove structure of remaining silent of especially a kind of motor.

Background technology

At present, the threephase asynchronous of selling on the market, for the sliver groove on the rotor punching mostly is the opening trough_like (see figure 1), owing to outside sliver is exposed to behind the cast aluminium, need the machine work cutting, unavoidably can there be burr, when sliver and punching are gapped, easily produce sparks because of the two current potential is different, spark is exposed to outer damp around lighting easily, cause potential safety hazard, influence run stability.Simultaneously, not present sliver trench bottom place excessively not slick and sly, sliver groove shoulder place is an acute angle, rotor is unfavorable for the circulation of aluminium when the sliver cast aluminium, the corner pore that mostly occurs causes tissue looseness's phenomenon, in addition, existing sliver flute profile also can make stress concentrate, and causes the rotor punching out-of-flatness of going out.

Summary of the invention

The technical problems to be solved in the utility model provides and a kind ofly turns round stable and can reduce the novel groove structure of remaining silent of the close motor of rotor tooth magnetic.

Technical problem to be solved in the utility model is achieved by the following technical solution: it comprises the rotor punching of motor and is installed in the interior sliver of rotor punching that described rotor punching is provided with the sliver groove of remaining silent.

Remain silent on the rotor punching described in the utility model bottom of sliver groove is an arc structure, and groove shoulder place is the obtuse angle structure.

The said structure that the utility model adopts because sliver all is enclosed in the groove of remaining silent, has been avoided the spark that causes because of current potential is different between sliver and the sliver groove, prevents spark ignition damp on every side, has improved operation stability; Remain silent on the rotor punching bottom of sliver groove is an arc structure, groove shoulder place is the obtuse angle structure, can make rotor when cast aluminium, help the circulation of aluminium, reduce the pore of corner, prevent tissue looseness, reduced stress simultaneously and concentrated, increased the area of rotor tooth, it is close to have reduced rotor tooth magnetic, thereby can reduce the loss of tooth portion.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further described:

Figure 1 shows that the structural representation of existing rotor punching opening sliver groove

Figure 2 shows that structural representation of the present utility model

Embodiment

By accompanying drawing as can be known, the utility model comprises the rotor punching 1 of motor and is installed in sliver 2 in the rotor punching 1 that the periphery upper punch on the described rotor punching 1 has the equally distributed sliver groove 3 of remaining silent.Rotor punching is superimposed, and the aluminium behind the casting aluminum rotor in the sliver groove forms sliver, and sliver is embedded in the sliver groove.Because the sliver groove is the structure of remaining silent, the sliver behind the cast aluminium need not cut.As another kind of technical scheme of the present utility model, the bottom of the sliver groove of remaining silent on the rotor punching described in the utility model is an arc structure, and groove shoulder place is the obtuse angle structure.Arc structure makes rotor help the circulation of aluminium when cast aluminium, reduce the pore of corner, prevent tissue looseness, the obtuse angle design at groove shoulder place is with respect to the area of open slot acute angle design having increased rotor tooth shown in Figure 1, the tooth magnetic that has reduced rotor is close, and simultaneously, groove shoulder place acute angle has become the obtuse angle, reduced the phenomenon that stress is concentrated, punching is more smooth after being shaped.The scope that the utility model is described the soverlay technique scheme, and the various variations of claim scope, any modification or improvement that those skilled in the art that the utility model is done realize easily all belong to the utility model scope required for protection.

Claims (2)

1, the novel groove structure of remaining silent of a kind of motor comprises the rotor punching of motor and is installed in the interior sliver of rotor punching, it is characterized in that described rotor punching is provided with the sliver groove of remaining silent.
2, the novel groove structure of remaining silent of a kind of motor according to claim 1, the bottom of the sliver groove that it is characterized in that remaining silent on the described rotor punching is an arc structure, groove shoulder place is the obtuse angle structure.
CNU2009200361593U 2009-03-10 2009-03-10 Novel closed slot structure of motor CN201369610Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2009200361593U CN201369610Y (en) 2009-03-10 2009-03-10 Novel closed slot structure of motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2009200361593U CN201369610Y (en) 2009-03-10 2009-03-10 Novel closed slot structure of motor

Publications (1)

Publication Number Publication Date
CN201369610Y true CN201369610Y (en) 2009-12-23

Family

ID=41488500

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2009200361593U CN201369610Y (en) 2009-03-10 2009-03-10 Novel closed slot structure of motor

Country Status (1)

Country Link
CN (1) CN201369610Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102570653A (en) * 2010-12-17 2012-07-11 通用汽车环球科技运作有限责任公司 Induction rotor having improved conductor bar profiles and method for forming the same
CN108092433A (en) * 2017-12-27 2018-05-29 无锡浩盛电机制造有限公司 A kind of rotor punching structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102570653A (en) * 2010-12-17 2012-07-11 通用汽车环球科技运作有限责任公司 Induction rotor having improved conductor bar profiles and method for forming the same
CN108092433A (en) * 2017-12-27 2018-05-29 无锡浩盛电机制造有限公司 A kind of rotor punching structure

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20091223

Termination date: 20130310

C17 Cessation of patent right