CN202009274U - Motor stator with each hole having half-turn coil - Google Patents
Motor stator with each hole having half-turn coil Download PDFInfo
- Publication number
- CN202009274U CN202009274U CN2011200586255U CN201120058625U CN202009274U CN 202009274 U CN202009274 U CN 202009274U CN 2011200586255 U CN2011200586255 U CN 2011200586255U CN 201120058625 U CN201120058625 U CN 201120058625U CN 202009274 U CN202009274 U CN 202009274U
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- stator
- motor
- hole
- coil
- utility
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- 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 a motor stator with each hole having half-turn coil. A traditional motor stator winding is a multi-turn coil, arranged in the inner side slot of the casing of the stator, which has the disadvantages of low slot fullness and large induced electromotive force, etc. The motor stator of the utility model comprises a stator iron core (1) provided with a group of stator holes (2) along the axial direction, and each stator hole is provided with a half-turn coil (3) tightly cooperated with the stator hole. The utility model has the advantages of high slot fullness, high radiation efficiency, small induced electromotive force of the stator coil, simple and reliable structure, easy manufacture and maintenance, and etc. The motor stator of the utility model is suitable for electrical excitation or permanent magnet type rotor motor, the arrangement and number of the stator holes, as well as the connection mode of the stator coil can be configured according to the running of the motor.
Description
Technical field
The utility model relates to a kind of stator, and particularly a kind of every hole has only the motor stator of half-turn coil.
Background technology
Shortcomings such as traditional motor stator winding is a multiturn coil, is placed in the stator case inner side slot, and this structure exists copper factor low, and induced electromotive force is big.The motor copper factor is low, and the interior filling of expression groove is loose, and lead is easily loosening during the motor operation, and wire insulation is easy to wear, and the groove internal pore is many, and the air poor thermal conductivity influences the coil heat radiation, and electric machine temperature rise increases; The copper factor height is filled closely in the expression groove, and air gap is few in the groove, and motor radiating is effective, but copper factor is too high, the rule difficulty, and the amount of labour increases, and easily causes the wire insulation extrusion damage, the percent defective height.Have more space inevitably between the multiturn coil of this stator structure (many round conductors), so the motor copper factor is generally about 75%～80%.The induced electromotive force of motor stator winding is directly proportional with its number of turn.The motor stator winding number of turn is many more, and induced electromotive force is high more, is difficult in realization motor high-speed cruising under the lower voltage like this, and this is the inherent defect that traditional multiturn coil formula stator structure can't overcome.
Summary of the invention
The purpose of this utility model provides the motor stator that a kind of every hole has only half-turn coil, be applicable to the motor of electric excitation or magneto rotor, has the copper factor height, the radiating efficiency height, induced electromotive force is little, can realize the motor high-speed cruising under lower voltage, it has simple and reliable for structure simultaneously, is easy to advantages such as manufacturing and maintenance.
Above-mentioned purpose realizes by following technical scheme:
Every hole has only the motor stator of half-turn coil, and its composition comprises: stator core, have one group of stator hole in the described stator core vertically, and settle the half turn stator coil in the described stator hole, described half turn stator coil and described stator hole closely cooperate.
Beneficial effect:
1, copper factor height, the radiating efficiency height: each stator hole (groove) combines closely with half turn stator coil (being single stator conductors), as ignores single stator conductors external insulation layer thickness, and copper factor is 100% in theory, the radiating efficiency height.
2, the stator coil induced electromotive force is little, realize high-speed cruising under the motor low pressure: have only the half turn stator coil in each stator core hole (groove), the induced electromotive force of half turn stator coil can be realized the motor high-speed cruising much smaller than the induced electromotive force of traditional stator structure multiturn coil under lower voltage.
3, radiating efficiency height, through-current capability is strong: have only half turn stator coil (single stator conductors) in each stator hole (groove), the sectional area of single stator conductors is much larger than the sectional area of traditional stator structure coil, the radiating efficiency height, through-current capability is strong.
4, simple and reliable for structure, be easy to make and safeguard: each stator hole (groove) combines closely with half turn stator coil (single stator conductors), and is more simple and reliable than the traditional stator structure, is easy to make and safeguard.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model.
Accompanying drawing 2 is left views of accompanying drawing 1.
Accompanying drawing 3 is A-A profiles of accompanying drawing 1.
Embodiment
As Figure 1-3, every hole has only the motor stator of half-turn coil, its composition comprises: stator core 1, has one group of stator hole (groove) 2 in the described stator core vertically, settle half turn stator coil (being single stator conductors) 3 in the described stator hole (groove), described half turn stator coil (single stator conductors) closely cooperates with described stator hole (groove).
The arrangement mode of stator hole (groove) and the connected mode of quantity and stator coil need be determined according to the motor operational mode.The quantity in motor stator hole (groove) is the integral multiple of rotor magnetic pole number, and promptly the quantity of the stator hole (groove) under each rotor magnetic pole is that integer is individual.Motor stator hole (groove) can be arranged according to the mode along same circumference; Can also arrange according to mode along a plurality of concentric circumferences; Also can arrange according to other irregular mode.
In the motor actual motion, energising sequential between each stator coil should change in real time along with the variation of rotor field direction, keep the required electromagnetic torque of motor operation with generation, if that is: pass to forward current with extremely corresponding each stator coil of rotor field N, and passing to reverse current with extremely corresponding each stator coil of rotor field S, motor can produce the forward electromagnetic torque so; If pass to reverse current with extremely corresponding each stator coil of rotor field N, and pass to forward current with extremely corresponding each stator coil of rotor field S, motor can produce reverse electromagnetic torque so.Change the size of stator coil electrical current as required, can change the size that motor produces electromagnetic torque.
Claims (1)
1. every hole has only the motor stator of half-turn coil, its composition comprises: stator core, it is characterized in that: have one group of stator hole in the described stator core vertically, settle the half turn stator coil in the described stator hole, described half turn stator coil and described stator hole closely cooperate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200586255U CN202009274U (en) | 2011-03-08 | 2011-03-08 | Motor stator with each hole having half-turn coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200586255U CN202009274U (en) | 2011-03-08 | 2011-03-08 | Motor stator with each hole having half-turn coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202009274U true CN202009274U (en) | 2011-10-12 |
Family
ID=44750929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200586255U Expired - Fee Related CN202009274U (en) | 2011-03-08 | 2011-03-08 | Motor stator with each hole having half-turn coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202009274U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122850A (en) * | 2011-03-08 | 2011-07-13 | 哈尔滨理工大学 | Motor stator with half-turn coil in each hole |
-
2011
- 2011-03-08 CN CN2011200586255U patent/CN202009274U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122850A (en) * | 2011-03-08 | 2011-07-13 | 哈尔滨理工大学 | Motor stator with half-turn coil in each hole |
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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: 20111012 Termination date: 20150308 |
|
| EXPY | Termination of patent right or utility model |