CN202334041U - Motor rotor structure - Google Patents
Motor rotor structure Download PDFInfo
- Publication number
- CN202334041U CN202334041U CN2011204682923U CN201120468292U CN202334041U CN 202334041 U CN202334041 U CN 202334041U CN 2011204682923 U CN2011204682923 U CN 2011204682923U CN 201120468292 U CN201120468292 U CN 201120468292U CN 202334041 U CN202334041 U CN 202334041U
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- CN
- China
- Prior art keywords
- rotor
- slots
- motor
- motor rotor
- conducting strips
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to manufacturing technology of motors, and discloses a motor rotor structure. The motor rotor structure comprises a rotating shaft, wherein an iron core is arranged on the rotating shaft, a plurality of rotor slots are arranged on the iron core, conducting strips are embedded in the rotor slots, and short circuit rings are connected on the end parts of the conducting strips, the motor rotor structure is characterized in that annular slots are arranged on the conducting strips, and the annular slots are located on the notches of the rotor slots. In the motor rotor structure disclosed by the utility model, the annular slots are arranged on the conducting strips and the annular slots are located on the notches of the rotor slots, so that the conducting strips can generate bending deformation under the action of an electromagnetic force and a centrifugal force while generating no contact arcing with the notches of the rotor slots during the operation process of the motor, thereby capable of avoiding the breakage accident of the conducting strips.
Description
Technical field
The utility model relates to motor manufacturing technology, particularly a kind of motor rotor construction.
Background technology
Along with industrialized development, the application of motor is more extensive, but every field to motor require increasingly high, the reliability requirement of motor especially.Motor rotor conducting bar sparking or fracture are one of factors that influences the motor reliability.
As everyone knows, motor rotor conducting bar under static state all is straight, but in motor operation course; Motor rotor conducting bar is under electromagnetic force and centrifugal action; Can occur bending and deformation contacts sparking with notch, can cause bar failure in the course of time, especially copper sliver.
Summary of the invention
To above-mentioned technical problem, the purpose of the utility model is to provide a kind of motor rotor construction, can overcome the defective of motor rotor conducting bar sparking or fracture, improves the reliability of motor.
In order to achieve the above object, the utility model adopts following technical scheme to be achieved.
A kind of motor rotor construction comprises rotating shaft, and rotating shaft is provided with iron core, offers a plurality of rotor on the iron core, and rotor is embedded with sliver, and the sliver end is connected with short-circuited conducting sleeve, it is characterized in that, offers annular groove on the said sliver, and annular groove is positioned at the rotor notch.
The characteristics of the utility model are with further improving:
The width center of said annular groove is near the rotor notch.
The cross section of said annular groove is trapezoidal.
In the motor rotor construction of the utility model; Offer annular groove on the sliver, annular groove is positioned at the rotor notch, and motor is in running; Sliver is under electromagnetic force and centrifugal action; Can occur bending and deformation, but can not contact sparking, thereby can avoid the generation of bar failure accident with the rotor notch.The width center of annular groove is near the rotor notch, and the rotor notch can be dodged the flexural deformation of sliver to greatest extent, and makes the degree of depth of annular groove the most shallow, so that the mechanical performance and the electric conductivity of maximum performance sliver; The cross section of annular groove is trapezoidal, can reduce because of offering annular groove to the sliver influence.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further explain.
Fig. 1 is the sketch map of a kind of motor rotor construction of the utility model;
Fig. 2 is the enlarged diagram of local A among Fig. 1;
Among the figure: 1, rotating shaft; 2, iron core; 3, sliver; 4, short-circuited conducting sleeve; 5, annular groove.
Embodiment
With reference to Fig. 1, Fig. 2, a kind of motor rotor construction of the utility model wherein, is provided with iron core 2 in the rotating shaft 1, vertically offer a plurality of rotor on the iron core 2, and rotor is embedded with sliver 3, and sliver 3 ends connect short-circuited conducting sleeve 4.
On sliver 3, offer annular groove 5, annular groove 5 is positioned at the rotor notch, and the width center of annular groove 5 is near the rotor notch, and the cross section of annular groove 5 is trapezoidal.A sliver 3 has two annular grooves 5, lays respectively at the two ends notch of rotor.
In the present embodiment, sliver 3 is the copper sliver.The copper sliver is designed to the matrix annular groove in the iron core slot notch portion, and the sparking fracture that can effectively avoid motor when operation, to cause because of the sliver slight deformation avoids motor to scrap.
Although more than combine accompanying drawing that the embodiment of the utility model is described; But the utility model is not limited to above-mentioned specific embodiments and applications field; Above-mentioned specific embodiments only is schematic, guiding, rather than restrictive.Those of ordinary skill in the art under the situation that does not break away from the scope that the utility model claim protected, can also make a variety of forms under the enlightenment of this specification, these all belong to the row of the utility model protection.
Claims (3)
1. a motor rotor construction comprises rotating shaft, and rotating shaft is provided with iron core, offers a plurality of rotor on the iron core, and rotor is embedded with sliver, and the sliver end is connected with short-circuited conducting sleeve, it is characterized in that, offers annular groove on the said sliver, and annular groove is positioned at the rotor notch.
2. motor rotor construction according to claim 1 is characterized in that, the width center of said annular groove is near the rotor notch.
3. motor rotor construction according to claim 1 is characterized in that, the cross section of said annular groove is trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204682923U CN202334041U (en) | 2011-11-22 | 2011-11-22 | Motor rotor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204682923U CN202334041U (en) | 2011-11-22 | 2011-11-22 | Motor rotor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202334041U true CN202334041U (en) | 2012-07-11 |
Family
ID=46446007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204682923U Expired - Fee Related CN202334041U (en) | 2011-11-22 | 2011-11-22 | Motor rotor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202334041U (en) |
-
2011
- 2011-11-22 CN CN2011204682923U patent/CN202334041U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20151122 |
|
| EXPY | Termination of patent right or utility model |