CN207010501U - A kind of a height of 160mm in center and following threephase asynchronous - Google Patents
A kind of a height of 160mm in center and following threephase asynchronous Download PDFInfo
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- CN207010501U CN207010501U CN201720562662.7U CN201720562662U CN207010501U CN 207010501 U CN207010501 U CN 207010501U CN 201720562662 U CN201720562662 U CN 201720562662U CN 207010501 U CN207010501 U CN 207010501U
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Abstract
The utility model discloses a kind of a height of 160mm in center and following threephase asynchronous, including stator and rotor, wherein stator forms by support and with winding stator core, includes stator core and the coil windings in its groove with winding stator core；Coil windings form is individual layer chain type, and per mutually there is half groove to connect winding for Y, second half groove connects winding for △；The span of coil for it is whole away from.Y meets winding and △ and connects the ratio between coil number of winding as (or close to) 0.577；Y meets winding and △ and connects the ratio between coil-conductor sectional area of winding as (or close to) 1.732.First embedding △ connects winding, then embedding Y connects winding, carries out successively in this order；For winding by △ form wiring in outer Y, the lead-out wire of motor is 3.The utility model coil windings have higher fundamental wave winding coefficient and relatively low higher harmonic content, can reduce heating in winding using this winding, improve electric efficiency and power factor.
Description
Technical field
The utility model belongs to technical field of motors, and in particular to a height of 160mm in a kind of center and following phase asynchronous
Motor.
Background technology
The high 160mm in center and following threephase asynchronous specifically have individual layer chain type, list at present frequently with Single-layer Windings
Layer intersects and several forms of individual layer concentric type.Single-layer Windings have the advantages of fundamental wave winding coefficient is high, but have high order humorous simultaneously
The shortcomings that ripple content is high.So the high 180mm in center and the motor of the above use the double-layer overlapped of short distance around form to weaken high order
Harmonic wave.The presence of higher hamonic wave makes stray loss and the increase of various added losses, adds heating in winding, reduces motor effect
Rate.
For threephase asynchronous, if using the double-layer overlapped of short distance around winding, while higher hamonic wave is weakened,
Fundamental wave winding coefficient also significantly declines, and the reduction of fundamental wave winding coefficient brings adverse effect to electric efficiency.
The content of the invention
In view of above-mentioned, the utility model provides a kind of a height of 160mm in center and following threephase asynchronous, both has
There is higher fundamental wave winding coefficient, higher harmonic content is enough greatly reduced in and can.
A kind of a height of 160mm in center and following threephase asynchronous, including stator and rotor；
The stator is made up of support and the stator core being fixed on support, and the rotor is by rotating shaft and is fixed on
Cast-aluminum rotor or copper casting rotor composition in rotating shaft；
Coil windings are embedded with the notch of the stator core, the coil windings use individual layer chain type winding；
Per mutually there is the coil windings of a groove to be wye connection, while it is △ type connections often mutually to have the coil windings of a groove, line
The span of circle winding is the number of phases and number of poles that b, a=Q1/2m, b=Q1/2P, m and 2P are respectively motor, and Q1 is stator core
Slot number；The ratio between the coil number of wye connection and the coil number of △ type connections are (or close to) 0.577, and the coil of wye connection is led
It is (or close to) 1.732 that body section, which is accumulated with the ratio between coil-conductor sectional area of △ type connections,.
Further, including during wiring by the coil windings of △ type connections, the form of the coil windings of wye connection outside is entered
Row wiring, lead-out wire are three.
Further, first coil windings of embedding △ types connection during rule, the coil windings of rear embedding wye connection, replace successively
Carry out.
Further, the stator core is overrided to form by cold rolling electrical steel sheet.
Further, aluminium liquid die casting of the cast-aluminum rotor by cold rolling electrical steel sheet with high temperature melting is integral.
Further, copper liquid die casting of the copper casting rotor by cold rolling electrical steel sheet with high temperature melting is integral.
Further, the thickness of the cold rolling electrical steel sheet is 0.5mm or 0.35mm.
The utility model threephase asynchronous passes through the number of coils and cross-sectional area of conductor to △ types connection and wye connection
The ratio between product carries out reasonable set so that electric system has higher fundamental wave winding coefficient and relatively low higher harmonic content, should
Heating in winding can be reduced with this winding, improves electric efficiency and power factor.
Brief description of the drawings
Fig. 1 is the winding connection schematic diagram of the pole motor of 36 groove of the utility model 6.
Fig. 2 is the wiring schematic diagram of △ in the outer Y of the utility model winding.
Embodiment
In order to more specifically describe the utility model, below in conjunction with the accompanying drawings and embodiment is to of the present utility model
Technical scheme is described in detail.
The utility model threephase asynchronous, including stator and rotor, wherein stator are by support and with wound stator iron
Core forms, and includes stator core and the coil windings in its groove with winding stator core.Rotor is by rotating shaft and cast-aluminum rotor
(or copper casting rotor) forms.Stator core is overrided to form by thickness 0.5mm high-quality cold rolling electrical steel sheet, and cast-aluminum rotor is by thickness
The aluminium liquid for spending 0.5mm high-quality cold rolling electrical steel sheet and high temperature melting is cast into an entirety.
Coil windings in the utility model stator core use individual layer chain type, whole away from delta connection in outer Y.
For purposes of illustration only, below for a specific example：One pole motor of 36 groove 6, as different number of stator slots, no
Same number of poles, can be obtained with thinking with reasoning after the same method.
As shown in figure 1, for the three phase electric machine of the pole of 36 groove 6, Q1=36, m=3,2P=6, every mutually to have Q1/m/2 i.e. 6 herein
Individual groove connects winding for Y, every mutually to have 6 grooves to connect winding for △.Coil windings form is individual layer chain type, and the span of coil is whole
Away from i.e. Q1/2P=6.
As shown in figure 1, first the △ of embedding No. 1 groove U phases connects winding, then the Y of embedding No. 2 grooves U phases connects winding；In this order embedding 3
The △ of number groove W phases connects winding, the Y of embedding No. 4 grooves W phases connects winding；The △ of embedding No. 5 grooves V phases connects winding, the Y of embedding No. 6 grooves V phases connect around
Group ... is carried out successively.
As shown in Fig. 2 winding, by △ form wiring in outer Y, the lead-out wire of motor is 3.
Table 1 is to individual layer chain type, the utility model winding, works as Q1=36, comparative example when m=3,2P=6.Table 1
Middle Kdp1 is fundamental wave winding coefficient, and Kdp5 is 5 subharmonic winding coefficients, and Kdp7 is 7 subharmonic winding coefficients ...
In present embodiment, the coil number that Y connects winding is 34, and line gauge 2-0.93, the coil number that △ connects winding is 59, line
Advise as 1-1.0.Y connects the coil number of winding and △ connects the ratio between coil number of winding as 0.5763, close to 0.577；Y connect winding with
It is 1.7298 that △, which connects the ratio between coil-conductor sectional area of winding, close to 1.732.
Table 1
From table 1, the utility model coil windings compare conventional monolayers chain type winding, have higher fundamental wave around system
Number and relatively low higher harmonic content；Can effectively reduce heating in winding using this winding, improve electric efficiency and power because
Number.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using this practicality
It is new.Person skilled in the art obviously can easily make various modifications to above-described embodiment, and illustrating herein
General Principle be applied in other embodiment without by performing creative labour.Therefore, the utility model is not limited to above-mentioned
Embodiment, those skilled in the art according to announcement of the present utility model, all should by the improvement made for the utility model and modification
Should be within the scope of protection of the utility model.
Claims (7)
1. a kind of a height of 160mm in center and following threephase asynchronous, including stator and rotor；It is characterized in that：
The stator is made up of support and the stator core being fixed on support, and the rotor is by rotating shaft and is fixed on rotating shaft
On cast-aluminum rotor or copper casting rotor composition；
Coil windings are embedded with the notch of the stator core, the coil windings use individual layer chain type winding；
Per mutually there is the coil windings of a groove to be wye connection, while it is △ type connections often mutually to have the coil windings of a groove, coil around
The span of group is the number of phases and number of poles that b, a=Q1/2m, b=Q1/2P, m and 2P are respectively motor, and Q1 is the groove of stator core
Number；The ratio between the coil number of wye connection and the coil number of △ type connections are 0.577, coil-conductor sectional area and the △ types of wye connection
The ratio between coil-conductor sectional area of connection is 1.732.
2. threephase asynchronous according to claim 1, it is characterised in that：By the coil windings of △ type connections during wiring
Inside, the form of the coil windings of wye connection outside carries out wiring, and lead-out wire is three.
3. threephase asynchronous according to claim 1, it is characterised in that：During rule first the coil of embedding △ types connection around
Group, the coil windings of rear embedding wye connection, successively alternately.
4. threephase asynchronous according to claim 1, it is characterised in that：The stator core is by cold rolling electrical steel
Piece is overrided to form.
5. threephase asynchronous according to claim 1, it is characterised in that：The cast-aluminum rotor is by cold rolling electrical steel
Aluminium liquid die casting of the piece with high temperature melting is integral.
6. threephase asynchronous according to claim 1, it is characterised in that：The copper casting rotor is by cold rolling electrical steel
Copper liquid die casting of the piece with high temperature melting is integral.
7. according to the threephase asynchronous described in claim 4,5 or 6, it is characterised in that：The cold rolling electrical steel sheet
Thickness is 0.5mm or 0.35mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720562662.7U CN207010501U (en) | 2017-05-19 | 2017-05-19 | A kind of a height of 160mm in center and following threephase asynchronous |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720562662.7U CN207010501U (en) | 2017-05-19 | 2017-05-19 | A kind of a height of 160mm in center and following threephase asynchronous |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207010501U true CN207010501U (en) | 2018-02-13 |
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ID=61444609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720562662.7U Active CN207010501U (en) | 2017-05-19 | 2017-05-19 | A kind of a height of 160mm in center and following threephase asynchronous |
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| CN (1) | CN207010501U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109888941A (en) * | 2019-03-13 | 2019-06-14 | 江苏迈吉易威电动科技有限公司 | A kind of 18N-10N structure low noise fractional-slot concentratred winding magneto |
-
2017
- 2017-05-19 CN CN201720562662.7U patent/CN207010501U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109888941A (en) * | 2019-03-13 | 2019-06-14 | 江苏迈吉易威电动科技有限公司 | A kind of 18N-10N structure low noise fractional-slot concentratred winding magneto |
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