CN207382159U - A kind of asynchronous machine - Google Patents
A kind of asynchronous machine Download PDFInfo
- Publication number
- CN207382159U CN207382159U CN201721212439.6U CN201721212439U CN207382159U CN 207382159 U CN207382159 U CN 207382159U CN 201721212439 U CN201721212439 U CN 201721212439U CN 207382159 U CN207382159 U CN 207382159U
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- Prior art keywords
- winding
- slot
- stator
- stator core
- angle
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- 238000004804 winding Methods 0.000 claims abstract description 131
- 238000001816 cooling Methods 0.000 claims abstract description 12
- 238000004080 punching Methods 0.000 claims description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
- 230000000712 assembly Effects 0.000 claims description 7
- 238000000429 assembly Methods 0.000 claims description 7
- 239000000498 cooling water Substances 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000005476 soldering Methods 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims 2
- 230000001360 synchronised effect Effects 0.000 abstract description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Windings For Motors And Generators (AREA)
Abstract
The utility model discloses a kind of asynchronous machines, including stator module, rotor and cooling device, stator module includes the first stator core, the second stator core and stator winding, the inner wall of first stator core offers several first slot for windings, and one end end face of the first slot for winding and the first stator core is into the first angle α；The inner wall of second stator core offers several second slot for windings, and one end end face of the second slot for winding and the second stator core is into the second angle β；One end of first stator core is fixed in one end of the second stator core, and each first slot for winding is symmetrical arranged with each second slot for winding, and forms stator winding slot；Stator winding includes low speed winding and high speed winding, and low speed winding and high speed winding are wire-wrapped in stator winding slot；Low speed winding is different with the quantity of high speed winding umber of turn；The utility model can weaken synchronous additional torque, and can meet asynchronous machine and export big torque in the slow-speed of revolution, and high rotating speed exports powerful design requirement.
Description
Technical field
Technical field more particularly to a kind of asynchronous machine the utility model is related to motor.
Background technology
Electro spindle is the core functional components of numerically-controlled machine tool, as numerically-controlled machine tool is to function is stronger and stronger, the range of work
Direction increasingly broader, that precision is more and more superb is developed, and in order to meet numerically-controlled machine tool range of work broadness, electro spindle is with regard to necessary
The driving motor for possessing extensive operation interval namely electro spindle will must possess broad speed adjustable range.
Phase asynchronous variable-frequency motor is the most widely used driving motor type in current electro spindle field, it can pass through change
Frequency device changes the running frequency of motor to realize stepless speed control, but the rotor of this kind of motor can generate high frequency in operation process
Current loss, prior art generally use motor stator winding slot slot number and rotor windings slot slot number approaches or equal method
It is lost to eliminate the high frequency electric of rotor, but can also generate synchronous additional torque to rotor simultaneously, influence rotor
Rotation, and the stator of current phase asynchronous variable-frequency motor is designed using simplex winding, can not meet motor at low turn
Speed exports big torque, and high rotating speed exports powerful design requirement.
Utility model content
For overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of asynchronous machines, can weaken
The synchronous additional torque generated when asynchronous machine stator winding slot number mesh and equal numbers of rotor windings slot, ensures rotor just
It often rotates, and asynchronous machine can be met and export big torque in the slow-speed of revolution, high rotating speed exports powerful design requirement.
The purpose of this utility model adopts the following technical scheme that realization：
A kind of asynchronous machine, it is described fixed including stator module, rotor and cooling device for cooling down the stator module
Sub-component includes the first stator core, the second stator core and stator winding,
The inner wall of first stator core axially offers several first slot for windings along the first stator core, each described
First slot for winding is uniformly distributed in the inner wall of first stator core, first slot for winding and first stator core
One end end face is into the first angle α；
The inner wall of second stator core axially offers several second slot for windings along the second stator core, each described
Second slot for winding is uniformly distributed in the inner wall of second stator core, second slot for winding and second stator core
One end end face is into the second angle β；
First angle α and the second angle β are equal in magnitude；
One end of first stator core is fixed in one end of second stator core, each first slot for winding
Connect to form stator winding slot with each second slot for winding respectively one by one, and each first slot for winding respectively with it is each
Second slot for winding is symmetrical arranged；
The stator winding includes low speed winding and high speed winding, and the low speed winding and the high speed winding are wire-wrapped in
The stator winding slot；The coil turn of the coil turn of the low speed winding and the high speed winding is unequal；The rotor
It is connected to first stator core and second stator core.
Further, first angle α and second angle
Wherein:Z1- stator winding slot slot number；P- motor numbers of pole-pairs.
Further, the rotor offers several tertiary winding slots, the slot number of the tertiary winding slot and described first
The slot number of slot for winding, the slot number of second slot for winding are equal.
Further, first stator core and second stator core include the stator punching of several closed assemblies.
Further, stator punching outer ring edge is provided with notch, and each stator punching is opened according to notch
Position, according to the first angle α closed assembly into first stator core, each stator punching is according to notch institute open position
It puts, second stator core is formed according to the second angle β closed assemblies.
Further, the rotor is soldering copper rotor.
Further, the terminals of the low speed winding use triangular form connection, and the terminals of the high speed winding use
Wye connection.
Further, the cooling device is stator cooling water set, and it is fixed that the stator cooling water set is socketed on described first
The outer wall of the outer wall of sub- iron core and second stator core.
Compared with prior art, the beneficial effects of the utility model are：When using this kind of asynchronous machine, by first around
Group slot and first stator core one end end face are into the first angle α, the second slot for winding and second iron core one end end face into the second angle
β, the first slot for winding connect the design to form stator winding slot with the second slot for winding, weaken when this kind of asynchronous machine first around
The synchronous additional torque that slot number, the slot number of the second slot for winding of group slot are approached with the slot number of rotor windings slot or generated when equal,
Ensure the normal rotation of rotor；Stator winding is using low speed winding and high speed winding simultaneously, by respectively in rotor slow-speed of revolution rank
Section and high rotating speed stage reasonable distribution umber of turn, this kind of asynchronous machine can export higher torque when accessing low speed winding,
Higher power can be exported when accessing high speed winding, so that this kind of asynchronous machine has broader working range.
Description of the drawings
Fig. 1 is a kind of cross section structure schematic diagram of asynchronous machine of the utility model；
Fig. 2 is a kind of stator member structure schematic diagram of asynchronous machine of the utility model；
Fig. 3 is the top view of the utility model stator module；
Fig. 4 is the structure diagram of the utility model stator punching.
In figure：10th, stator module；101st, the first stator core；1011st, the first slot for winding；102nd, the second stator core；
1021st, the second slot for winding；103rd, stator winding；20th, rotor；201st, tertiary winding slot；30th, cooling device；40th, stator punching；
401st, notch.
Specific embodiment
In the following, with reference to attached drawing and specific embodiment, the utility model is described further, it is necessary to explanation is,
On the premise of not colliding, it can be formed in any combination between various embodiments described below or between each technical characteristic new
Embodiment.
As shown in Figs. 1-3, a kind of asynchronous machine, including stator module 10, rotor 20 and for cooling down stator module 10
Cooling device 30, stator module 10 include the first stator core 101, the second stator core 102 and stator winding 103 (in figure not
Mark),
The inner wall of first stator core 101 offers several first slot for windings 1011 along the first stator core 101 is axial, respectively
A first slot for winding 1011 is uniformly distributed in the inner wall of the first stator core 101, the first slot for winding 1011 and the first stator core
101 one end end face is into the first angle α；
The inner wall of second stator core 102 offers several second slot for windings 1021 along the second stator core 102 is axial, respectively
A second slot for winding 1021 is uniformly distributed in the inner wall of the second stator core 102, the second slot for winding 1021 and the second stator core
102 one end end face is into the second angle β；
First angle α and the second angle β are equal in magnitude；
One end of first stator core 101 is fixed in one end of the second stator core 102, each first slot for winding 1,011 1
One connects to form stator winding slot with each second slot for winding 1021 respectively, and each first slot for winding 1011 is respectively with each
Two slot for windings 1021 are symmetrical arranged；
Stator winding 103 (not indicated in figure) includes low speed winding and high speed winding, low speed winding and high speed winding around
It is connected to stator winding slot；The coil turn of the coil turn of the low speed winding and the high speed winding is unequal；Rotor 20 is worn
It is connected to the first stator core 101 and the second stator core 102.
On the basis of said structure, when using this kind of asynchronous machine, pass through the first slot for winding 1011 and the first stator
101 one end end face of iron core is into the first angle α, the second slot for winding 1021 and 102 one end end face of the second stator core into the second angle
β, the first slot for winding 1011 connect the design to form stator winding slot with the second slot for winding 1021, weaken when this kind of asynchronous machine
The slot number of the first slot for winding 1011, the slot number of 20 slot for winding of slot number and rotor of the second slot for winding 1021 approaches or produced when equal
Raw synchronous additional torque ensures the normal rotation of rotor 20；Stator winding 103 (not indicated in figure) uses low speed winding simultaneously
With high speed winding, by respectively in 20 slow-speed of revolution stage of rotor and high rotating speed stage reasonable distribution umber of turn, this kind of asynchronous electricity
Machine can export higher torque when accessing low speed winding, higher power can be exported when accessing high speed winding, so that this kind
Asynchronous machine has broader working range.
Further, in the present embodiment, the first angle α and the second angle
Wherein:Z1- stator winding slot slot number；P- motor numbers of pole-pairs.
Further, in the present embodiment, rotor 20 offers several tertiary winding slots 201 (not indicated in figure), and the 3rd
The slot number of slot for winding 201 (not indicated in figure) is equal with slot number, the slot number of the second slot for winding 1021 of the first slot for winding 1011, this
The benefit of sample design is to weaken the high frequency electric loss that asynchronous machine operation generates, and improves the performance of motor.
Further, as shown in figure 4, in the present embodiment, the first stator core 101 and the second stator core 102 include
The stator punching 40 of several closed assemblies, stator punching 40 are stamped to form using lathe, make simple, the first stator core of reduction
101 and second stator core 102 cost of manufacture.
Further, in the present embodiment, 40 outer ring edge of stator punching is provided with notch 401, each stator punching 40
According to 401 open positions of notch, according to the first angle α closed assembly into the first stator core 101, each stator punching 40 is according to scarce
401 open positions of mouth, according to the second angle β closed assemblies into the second stator core 102, by being opened at 40 outer ring edge of stator punching
If notch 401, facilitate stator punching 40 fixed into the first stator core 101 or second according to the first angle α or the second angle β closed assemblies
Sub- iron core 102 saves installation time.
Further, in the present embodiment, rotor 20 is soldering copper rotor 20, and soldering processes are more mature, therefore is brazed
The manufacture cost of copper rotor 20 is relatively low.
Further, in the present embodiment, the terminals of low speed winding use triangular form connection, the terminals of high speed winding
It using wye connection, sets in this way, gives full play to the superior working performance of motor under different winding states.
Further, in the present embodiment, cooling device 30 is stator cooling water set, and stator cooling water set is socketed on first
The outer wall of the outer wall of stator core 101 and the second stator core 102, it is more preferable using cooling by water effect, ensure the operating mode of motor
Normal table is run.
The above embodiment is only the preferred embodiment of the utility model, it is impossible to be protected with this to limit the utility model
Scope, the variation and replacement of any unsubstantiality that those skilled in the art is done on the basis of invention belong to this reality
With new scope claimed.
Claims (8)
1. a kind of asynchronous machine, it is characterised in that：Including stator module, rotor and for cooling down the cooling of stator module dress
It puts, the stator module includes the first stator core, the second stator core and stator winding,
The inner wall of first stator core axially offers several first slot for windings along the first stator core, and each described first
Slot for winding is uniformly distributed in the inner wall of first stator core, one end of first slot for winding and first stator core
End face is into the first angle α；
The inner wall of second stator core axially offers several second slot for windings along the second stator core, and each described second
Slot for winding is uniformly distributed in the inner wall of second stator core, one end of second slot for winding and second stator core
End face is into the second angle β；
First angle α and the second angle β are equal in magnitude；
One end of first stator core is fixed in one end of second stator core, and each first slot for winding is one by one
Connect to form stator winding slot with each second slot for winding respectively, and each first slot for winding respectively with it is each described
Second slot for winding is symmetrical arranged；
The stator winding includes low speed winding and high speed winding, and the low speed winding and the high speed winding are wire-wrapped in described
Stator winding slot；The coil turn of the coil turn of the low speed winding and the high speed winding is unequal；The rotor, which is worn, to be connect
In first stator core and second stator core.
2. a kind of asynchronous machine as described in claim 1, it is characterised in that：First angle α and second angle
Wherein:Z1- stator winding slot slot numbers；P- motor numbers of pole-pairs.
3. a kind of asynchronous machine as claimed in claim 2, it is characterised in that：The rotor offers several tertiary winding slots,
The slot number of the tertiary winding slot is equal with slot number, the slot number of second slot for winding of first slot for winding.
4. a kind of asynchronous machine as claimed in claim 3, it is characterised in that：First stator core and second stator
Iron core includes the stator punching of several closed assemblies.
5. a kind of asynchronous machine as claimed in claim 4, it is characterised in that：Stator punching outer ring edge is provided with scarce
Mouthful, each stator punching forms the first stator iron according to notch institute open position according to the first angle α closed assembly
Core, each stator punching form the second stator iron according to notch institute open position according to the second angle β closed assemblies
Core.
6. a kind of asynchronous machine as described in claim 1, it is characterised in that：The rotor is soldering copper rotor.
7. a kind of asynchronous machine as described in claim 1, it is characterised in that：The terminals of the low speed winding use triangular form
Connection, the terminals of the high speed winding use wye connection.
8. a kind of asynchronous machine as described in claim 1, it is characterised in that：The cooling device be stator cooling water set, institute
It states stator cooling water set and is socketed on the outer wall of first stator core and the outer wall of second stator core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721212439.6U CN207382159U (en) | 2017-09-20 | 2017-09-20 | A kind of asynchronous machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721212439.6U CN207382159U (en) | 2017-09-20 | 2017-09-20 | A kind of asynchronous machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207382159U true CN207382159U (en) | 2018-05-18 |
Family
ID=62341239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721212439.6U Withdrawn - After Issue CN207382159U (en) | 2017-09-20 | 2017-09-20 | A kind of asynchronous machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207382159U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107659095A (en) * | 2017-09-20 | 2018-02-02 | 广州市昊志机电股份有限公司 | A kind of asynchronous machine |
-
2017
- 2017-09-20 CN CN201721212439.6U patent/CN207382159U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107659095A (en) * | 2017-09-20 | 2018-02-02 | 广州市昊志机电股份有限公司 | A kind of asynchronous machine |
| CN107659095B (en) * | 2017-09-20 | 2023-11-14 | 广州市昊志机电股份有限公司 | Asynchronous motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180518 Effective date of abandoning: 20231114 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180518 Effective date of abandoning: 20231114 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |