CN209516763U - Double salient-pole electric machine stator heat radiation structure - Google Patents
Double salient-pole electric machine stator heat radiation structure Download PDFInfo
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- CN209516763U CN209516763U CN201920528470.3U CN201920528470U CN209516763U CN 209516763 U CN209516763 U CN 209516763U CN 201920528470 U CN201920528470 U CN 201920528470U CN 209516763 U CN209516763 U CN 209516763U
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- stator
- stator core
- tooth
- phase
- exocoel
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- 230000005855 radiation Effects 0.000 title claims abstract description 12
- 238000004804 winding Methods 0.000 claims abstract description 30
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 230000005284 excitation Effects 0.000 claims description 11
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses a kind of double salient-pole electric machine stator heat radiation structures, belong to double salient-pole electric machine field, the stator core sulculus includes inner cavity and exocoel, wherein, side close to A phase stator tooth is defined as inner cavity, side far from A phase stator tooth is defined as exocoel, in radial directions, the depth of the inner cavity is greater than the depth of the exocoel, the exterior bottom of the stator core large trough is provided with step, the step is greater than stator core large trough in radial depth, the cross sectional shape and size and the cross sectional shape and size of stator core sulculus exocoel of the step are symmetrical.By the above-mentioned means, the utility model is able to solve the problem of existing electric machine stator winding heat dissipation difficulty.
Description
Technical field
The utility model relates to double salient-pole electric machine fields, more particularly to a kind of double salient-pole electric machine stator heat radiation structure.
Background technique
Electric excitation biconvex electrode electric machine rotor core has tooth and slot structure, such as 12/8 pole motor in the case of routine techniques,
Rotor core has 8 salient pole teeth and 8 slots to constitute, and motor generates torque, non-homogeneous slot structure stator by rotor tooth slot structure
Slot is divided into big sulculus, and large trough will also place excitation winding other than placing armature winding.Routine techniques size trench bottom is straight
Structure, as shown in Figure 1.
Existing electric excitation biconvex electrode electric machine has the shortcomings that following several respects:
A, armature winding uses flat type copper wire, is embedded in stator core slot after coiling shaping；Since motor is divided into size tooth, tooth
Shape is uneven, and the bottom surface contact of A phase winding and iron core is easy heat dissipation, C phase winding and B phase winding only have side and stator core
Bottom contact, the other half and stator trench bottom are hanging, and the temperature of winding is difficult to be transmitted to iron core bottom surface from air layer, winding heat dissipation
Difficulty, motor temperature rise are high；
B, the excitation winding in large trough and the contact area of stator core are little, and the heat of excitation winding is difficult to radiate, together
When large trough in there are also armature winding, stator core large trough temperature rise is very high.
Utility model content
The utility model is able to solve mainly solving the technical problems that provide a kind of double salient-pole electric machine stator heat radiation structure
The problem of existing electric machine stator winding heat dissipation difficulty.
In order to solve the above technical problems, the technical solution that the utility model uses is: providing a kind of double salient-pole electric machine
Stator heat radiation structure, the double salient-pole electric machine specifically include that stator core and rotor core, have respectively on the inside of the stator core
Have: A phase stator tooth, B phase stator tooth and C phase stator tooth, between the A phase stator tooth, B phase stator tooth and A phase stator tooth,
Stator core sulculus is offered respectively between C phase stator tooth, offers stator between adjacent B phase stator tooth, C phase stator tooth
Iron core large trough has been respectively coated by armature winding in the stator core slot on the outside of A phase stator tooth, B phase stator tooth, C phase stator tooth,
Excitation winding is respectively coated by the iron core slot on the outside of B phase stator tooth, C phase stator tooth, the stator core sulculus includes interior
Chamber and exocoel, wherein the side close to A phase stator tooth is defined as inner cavity, and the side far from A phase stator tooth is defined as exocoel,
In the radial direction, the depth of the inner cavity is greater than the depth of the exocoel, and the exterior bottom of the stator core large trough is provided with
Step, the step are greater than stator core large trough, the cross sectional shape and size and stator core of the step in radial depth
The cross sectional shape and size of sulculus exocoel are symmetrical.
Preferably, stator core sulculus inner cavity, stator core sulculus exocoel, stator core large trough step be respectively provided with
For rectangle.
Preferably, the opening of the stator core sulculus and stator core large trough is provided with slot wedge.
Preferably, stator core sulculus inner cavity and stator core sulculus exocoel is of same size.
The beneficial effects of the utility model are:
1, by changing the groove design of stator core, the thermal resistance of machine winding and stator core is greatly reduced, thermally conductive energy
Power greatly improves, and the torque of same volume stator iron core motor increases considerably；
2, in the case where Motor torque is constant, motor volume is substantially reduced, and motor volume can reduce by 10~30% or so.
Detailed description of the invention
Fig. 1 is the cross section structure schematic diagram of electric excitation biconvex electrode electric machine in the prior art；
Fig. 2 is a kind of stereochemical structure signal of one preferred embodiment of double salient-pole electric machine stator heat radiation structure of the utility model
Figure；
Fig. 3 is the part H partial enlargement diagram in shown Fig. 2；
Fig. 4 is the stator core and winding contact site structural schematic diagram；
The components in the drawings are labeled as follows: 11, stator core, 12, rotor core, 13, stator core sulculus, 14, slot
Wedge, 15, stator core large trough, 16, excitation winding, 17, armature winding, 101, A phase stator tooth, 102, B phase stator tooth, 103, C
Phase stator tooth, 21, stator core, 22, rotor core, 231, inner cavity, 232, exocoel, 25, stator core large trough, 251, step,
201, A phase stator tooth, 202, B phase stator tooth, 203, C phase stator tooth.
Specific embodiment
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, to make the protection scope of the utility model apparent clear
Define.
Fig. 2 and Fig. 3 are please referred to, the utility model embodiment includes:
A kind of double salient-pole electric machine stator heat radiation structure, the double salient-pole electric machine specifically include that stator core 21 and rotor iron
Core 22 is respectively provided on the inside of the stator core 21: A phase stator tooth 201, B phase stator tooth 202 and C phase stator tooth 203, in institute
It states between A phase stator tooth 201, B phase stator tooth 202 and is offered respectively between A phase stator tooth 201, C phase stator tooth 203 and determined
Sub- iron core sulculus offers stator core large trough 25 between adjacent B phase stator tooth 202, C phase stator tooth 203, fixed in A phase
Sub- tooth 201, B phase stator tooth 202, the outside of C phase stator tooth 203 stator core slot in be respectively coated by armature winding, it is fixed in B phase
It is respectively coated by excitation winding in iron core slot on the outside of sub- tooth 202, C phase stator tooth 203, the stator core sulculus includes inner cavity
231 and exocoel 232, wherein the side close to A phase stator tooth 201 is defined as inner cavity 231, the side far from A phase stator tooth 201
It is defined as exocoel 232, in radial directions, the depth of the inner cavity 231 is greater than the depth of the exocoel 232, the stator iron
The exterior bottom of core large trough 25 is provided with step 251, and the step 251 is greater than stator core large trough 25, institute in radial depth
State step 251 cross sectional shape and size and the cross sectional shape and size of stator core sulculus exocoel 232 it is symmetrical, the stator
Iron core sulculus inner cavity 231, stator core sulculus exocoel 232, stator core large trough step 251 be disposed as rectangle, it is described fixed
Sub- iron core sulculus inner cavity 231 and stator core sulculus exocoel 232 it is of same size.
From fig. 4, it can be seen that stator core sulculus groove profile is changed to the boss mechanism of inner cavity 231 and exocoel 232, C is increased
It can mutually increase with the side of B phase winding and the contact area of bottom surface, contact area, the iron core of this example outer diameter φ 200mm, C phase
Contact area increases 39%, and the thermal resistance of winding reduces in proportion, and the capacity of heat transmission increases in proportion；Large trough passes through step-like knot
Structure design, so that excitation winding contact area increases by 10% or so, the thermal resistance of winding reduces in proportion, and the capacity of heat transmission increases in proportion
Add.
Further, the opening of the stator core sulculus and stator core large trough 25 is provided with slot wedge.Pass through tune
The height of winding and slot wedge effectively cooperate at whole stator core sulculus, guarantee that slot wedge effectively compresses in stator core sulculus
Armature winding increases effective contact area of armature winding and stator core.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other related technical areas are also included in the patent protection scope of the utility model.
Claims (4)
1. a kind of double salient-pole electric machine stator heat radiation structure, the double salient-pole electric machine specifically include that stator core and rotor core, institute
It states and is respectively provided on the inside of stator core: A phase stator tooth, B phase stator tooth and C phase stator tooth, in the A phase stator tooth, B phase stator
Stator core sulculus is offered respectively between tooth and between A phase stator tooth, C phase stator tooth, in adjacent B phase stator tooth, C phase
Stator core large trough is offered between stator tooth, the stator core slot on the outside of A phase stator tooth, B phase stator tooth, C phase stator tooth
It has inside been respectively coated by armature winding, has been respectively coated by excitation winding in the iron core slot on the outside of B phase stator tooth, C phase stator tooth,
It is characterized in that, the stator core sulculus includes inner cavity and exocoel, wherein the side close to A phase stator tooth is defined as inner cavity, far
Side from A phase stator tooth is defined as exocoel, and in radial directions, the depth of the inner cavity is greater than the depth of the exocoel, institute
The exterior bottom for stating stator core large trough is provided with step, and the step is greater than stator core large trough in radial depth, described
The cross sectional shape and size and the cross sectional shape and size of stator core sulculus exocoel of step are symmetrical.
2. a kind of double salient-pole electric machine stator heat radiation structure according to claim 1, which is characterized in that the stator core is small
Slot inner cavity, stator core sulculus exocoel, stator core large trough step be disposed as rectangle.
3. a kind of double salient-pole electric machine stator heat radiation structure according to claim 1, which is characterized in that the stator core is small
The opening of slot and stator core large trough is provided with slot wedge.
4. a kind of double salient-pole electric machine stator heat radiation structure according to claim 1, which is characterized in that the stator core is small
Slot inner cavity and stator core sulculus exocoel it is of same size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920528470.3U CN209516763U (en) | 2019-04-18 | 2019-04-18 | Double salient-pole electric machine stator heat radiation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920528470.3U CN209516763U (en) | 2019-04-18 | 2019-04-18 | Double salient-pole electric machine stator heat radiation structure |
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| Publication Number | Publication Date |
|---|---|
| CN209516763U true CN209516763U (en) | 2019-10-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920528470.3U Active CN209516763U (en) | 2019-04-18 | 2019-04-18 | Double salient-pole electric machine stator heat radiation structure |
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| Country | Link |
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| CN (1) | CN209516763U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111211629A (en) * | 2020-03-09 | 2020-05-29 | 苏州达思灵电机有限公司 | Special-shaped rotor pole double salient pole brushless direct current excitation motor and generator |
-
2019
- 2019-04-18 CN CN201920528470.3U patent/CN209516763U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111211629A (en) * | 2020-03-09 | 2020-05-29 | 苏州达思灵电机有限公司 | Special-shaped rotor pole double salient pole brushless direct current excitation motor and generator |
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