CN114157062A - Alternating current motor stator structure and mounting method - Google Patents
Alternating current motor stator structure and mounting method Download PDFInfo
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- CN114157062A CN114157062A CN202111467625.5A CN202111467625A CN114157062A CN 114157062 A CN114157062 A CN 114157062A CN 202111467625 A CN202111467625 A CN 202111467625A CN 114157062 A CN114157062 A CN 114157062A
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- insertion part
- slot
- alternating current
- current motor
- motor stator
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
- H02K9/227—Heat sinks
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The application relates to the technical field of motors, in particular to an alternating current motor stator structure and an installation method, the alternating current motor stator structure comprises a stator body, at least one heat dissipation channel arranged along the axial lead direction is arranged at each of four corners of the stator body, at least one pair of slots arranged along the axial lead direction is arranged on each heat dissipation channel, and the same pair of slots consists of two coplanar and oppositely arranged slots; and heat-conducting aluminum strips are inserted into each pair of the slots. This application is through inserting the mode of establishing heat conduction aluminum strip in heat dissipation channel, mentions heat conduction efficiency, and then improves heat dissipation channel's radiating effect.
Description
Technical Field
The application relates to the technical field of motors, in particular to an alternating current motor stator structure and an installation method.
Background
The YJP variable-frequency speed-regulating three-phase asynchronous motor is a novel alternating-current variable-frequency speed-regulating three-phase asynchronous motor which is independently developed on the basis of innovation by integrating the technical characteristics of domestic and foreign variable-frequency motors, has novel and compact structure, exquisite appearance, energy conservation and practicability, forms an ideal speed-regulating driving system with a frequency converter, and can be applied to various industrial fields.
The YJP variable-frequency speed-regulating three-phase asynchronous motor has high power density, 4-5 gear power levels are higher in each center, and the characteristic that a small engine base outputs high power can be realized. The appearance of the utility model adopts a square design, and a ventilation and heat dissipation system is arranged at the four corners. The formation of the above-mentioned ventilation cooling system needs to set up at least one cooling channel along the axial lead direction on the four corners of the YJP variable frequency speed regulation three-phase asynchronous motor stator, however, the setting of this structure, its cooling effect still has certain limitation, needs to improve it and further promotes the cooling effect.
Disclosure of Invention
In order to improve the radiating effect, this application provides an alternating current motor stator structure.
On the one hand, the application provides an alternating current motor stator structure adopts following technical scheme:
a stator structure of an alternating current motor comprises a stator body, wherein at least one heat dissipation channel arranged along the axial lead direction is arranged at each of four corners of the stator body, at least one pair of slots arranged along the axial lead direction is arranged on each heat dissipation channel, and the same pair of slots consists of two coplanar and oppositely arranged slots; and heat-conducting aluminum strips are inserted into each pair of the slots.
Through adopting above-mentioned technical scheme, the mode of inserting the heat conduction aluminium strip in heat dissipation channel mentions heat conduction efficiency, and then improves heat dissipation channel's radiating effect.
Optionally: the heat-conducting aluminum strip comprises a left inserting portion inserted into one slot, a right inserting portion inserted into the other slot and an intermediate inserting portion inserted between the left inserting portion and the right inserting portion.
Through adopting above-mentioned technical scheme, aim at improves the contact surface, because what the stator adopted is that a plurality of laminations are piled up, so the wall of the heat dissipation channel who forms can't accomplish smoothly because reasons such as error, so want to realize inserting heat conduction aluminium strip heat dissipation channel, be able to make the thickness of heat conduction aluminium strip be less than the slot just, otherwise can lead to crooked and can't accomplish the installation because the intensity of aluminium strip material is not enough, and so set up and can reduce the contact effect and influence the heat conductivity. The heat-conducting aluminum strips arranged in a split structure can enable the heat-conducting aluminum strips and the slots to be installed more tightly, and the heat-conducting effect is improved.
Optionally: before the plugging is finished, the left plugging part and the right plugging part are arranged in an arc-shaped bending manner.
Through adopting above-mentioned technical scheme, make left grafting portion and right grafting portion when the installation, can begin the application of force earlier from the middle and peg graft, then accomplish the installation at both ends gradually to make left grafting portion and right grafting portion's whole all accomplish better installation, when avoiding appearing the grafting installation, because middle power can't concentrate and lead to pegging graft inseparably enough and protruding, consequently, should set up the clearance that can further reduce heat conduction aluminium strip thickness and slot, improve the heat conduction effect.
Optionally: the cross section of the slot is in a frustum pyramid shape, and one sides of the left insertion part and the right insertion part, which are far away from the middle insertion part, are both in a conical structure matched with the slot.
Through adopting above-mentioned technical scheme, the setting of toper structure and prismoid shape can reduce the resistance of left grafting portion and right grafting portion grafting in-process.
Optionally: the left inserting part and the right inserting part are respectively and correspondingly provided with a forking groove, and two side parts of the forking groove are turned inwards to form a deformation part; the groove bottom of the slot, which is opposite to the opening, is provided with a guide bulge for opening the deformation part.
Through adopting above-mentioned technical scheme, can further reduce the installation degree of difficulty for when the installation, left grafting portion and right grafting portion can be very easy insert the slot in, then prop open both sides deformation portion in inserting the bifurcation groove through the direction arch, thereby support tightly with slot both sides wall.
Optionally: the two ends of the left insertion part, the middle insertion part and the right insertion part are gradually changed in width.
By adopting the technical scheme, the plug-in connector can be plugged in from a narrow end, so that resistance cannot be formed before plugging is completed, and the plug-in connector can be conveniently plugged.
Optionally: the middle plugging part is connected with the left plugging part and the right plugging part in a plugging way.
Through adopting above-mentioned technical scheme, on the one hand can be better the completion plug-in connection portion and the connection of left grafting portion and right grafting portion, can also improve the contact surface simultaneously, improve the heat conductivity.
Optionally: convex ribs are arranged on two sides of the middle inserting part; the left inserting part and the right inserting part are correspondingly provided with grooves.
Through adopting above-mentioned technical scheme, setting up simple structure of fin and recess, processing is easy.
Optionally: the cross sections of the convex ribs and the grooves are isosceles trapezoids.
By adopting the technical scheme, the plugging difficulty is reduced, and the plugging is conveniently completed.
On the other hand, the application provides a method for installing heat conduction aluminum strips in an alternating current motor stator structure, which adopts the following technical scheme:
a method for installing a heat conduction aluminum strip in an alternating current motor stator structure comprises the following steps:
s1, pre-mounting, namely, inserting the left inserting part/the right inserting part into the heat dissipation channel and aligning the left inserting part/the right inserting part with the slot;
s2, splicing; after the alignment is finished, the left insertion part/the right insertion part is pushed to apply force to the direction of the slot, the guide protrusion is inserted into the forked groove, the force is kept applied, the deformation parts on two sides of the forked groove are outwards expanded until the deformation parts are tightly abutted against the bottom wall and the side wall of the slot, and the left insertion part/the right insertion part is pressed straight at the same time in the process; in the above manner, the left insertion part and the right insertion part are inserted in sequence;
the left inserting part/the right inserting part is required to apply acting force in the whole length direction, a force application tool matched with a low-elasticity rubber material and a rigid rod piece is adopted, the middle thickness of the low-elasticity rubber material is larger than that of the two sides, the rigid rod piece is a straight rod, and the contact surface of the rigid rod piece and the low-elasticity rubber material is a plane;
s3, assembling, namely inserting the middle insertion part between the left insertion part and the right insertion part until the insertion of the middle insertion part is completed;
and S4, fixing, namely applying clamping force from two end faces of the left insertion part and the right insertion part to enable the left insertion part and the right insertion part to be locally deformed, pressing the convex ribs on two sides of the middle insertion part, and fixing the middle insertion part with the left insertion part and the right insertion part.
Drawings
FIG. 1 is a schematic structural diagram of the first embodiment;
FIG. 2 is a partial schematic view of a stator core according to one embodiment;
FIG. 3 is a schematic structural diagram of a second embodiment of the aluminum heat conducting strip;
FIG. 4 is a partial schematic view of a stator core according to a second embodiment;
FIG. 5 is a schematic structural view of the left insertion-connection part in the second embodiment;
fig. 6 is an assembly diagram of the left insertion part and the slot in the second embodiment.
In the figure, 100, a stator body; 110. a base; 120. a stator core; 130. a heat dissipation channel; 131. a slot; 132. a guide projection; 200. a thermally conductive aluminum strip; 210. a left insertion part; 211. a forking slot; 212. a deformation section; 220. an insertion part; 230. and a right insertion part.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
In the description of the present application, it is to be understood that the terms "left" and "right" are not used in the application as an orientation, but merely as a convenience to distinguish two features to describe the application and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the application; in addition, the axial direction in the present application refers to the axial direction of the stator.
Example 1:
an alternating current motor stator structure, as shown in fig. 1, includes a stator body 100, the stator body 100 is a rectangular structure, the stator body 100 includes a base 110 and a stator core 120 disposed in the base 110, the stator core 120 is formed by stacking a plurality of laminations.
The four corners of lamination all is equipped with two trompils, and the four corners correspondence of base 110 is equipped with dodges the mouth, and the trompil in lamination four corners and the dodge mouth one-to-one on the base 110 form heat dissipation channel 130 after a plurality of lamination stacks, and heat dissipation channel 130 is seted up along the axial lead direction.
Referring to fig. 2, the cross section of the heat dissipation channel 130 is triangular, eight pairs of slots 131 are formed in each heat dissipation channel 130, and each pair of slots 131 is composed of two coplanar and oppositely arranged slots 131. Referring to fig. 1, a heat conductive aluminum strip 200 is inserted into each pair of slots 131, and the length of the heat conductive aluminum strip 200 is greater than the thickness of the lamination stack but less than the total length of the heat dissipation channel 130.
Example 2:
as shown in fig. 3, the difference from embodiment 1 is that heat-conducting aluminum bar 200 includes left plug-in connection part 210, right plug-in connection part 230, and middle plug-in connection part 220, and the lengths of left plug-in connection part 210, right plug-in connection part 230, and middle plug-in connection part 220 are the same as that of heat-conducting aluminum bar 200.
Referring to fig. 4, the left insertion part 210 and the right insertion part 230 are respectively inserted into the two slots 131 of the same pair, and the middle insertion part 220 is inserted between the left insertion part 210 and the right insertion part 230, wherein the left insertion part 210 and the right insertion part 230 have the same structure and shape, and only the left insertion part 210 is taken as an example for description.
As shown in fig. 5, before completing the plugging, the left plugging portion 210 is curved in an arc shape, the curvature of the arc shape does not need to be too large, and taking the left plugging portion 210 as an example, the height difference α between the middle portion and the two end portions of the same side of the left plugging portion 210 is not greater than half of the depth of the slot 131.
Referring to fig. 4 and 6, the cross section of the slot 131 is in a shape of a truncated pyramid with a gradually enlarged opening, a guide protrusion 132 is convexly disposed at the bottom of the slot 131, the cross section of the guide protrusion 132 is in a shape of a cone or a frustum, in this embodiment, taking a cone as an example, the height of the guide protrusion 132 is lower than the depth of the slot 131.
One side of the left insertion part 210, which is far away from the middle insertion part 220, is a conical structure matched with the slot 131, a branch groove 211 is formed in the side surface of the side for the insertion of the guide protrusion 132, and two side parts of the branch groove 211 are turned inwards to form a deformation part 212. Before the left inserting portion 210 is not inserted, the angle of the bifurcating groove 211 is smaller than that of the guide protrusion 132, the deformation portions 212 on the two sides of the bifurcating groove 211 are spread towards the two sides by the guide protrusion 132 in the inserting process, the angle of the bifurcating groove 211 is spread, and the bifurcating groove 211 is finally matched with the guide protrusion 132. In fig. 6, the solid line shows the shape of the deformed portion 212 before deformation, and the dotted line shows the shape after deformation.
In practice, the volume of the deformation portion 212 before deformation can be slightly corresponding to the volume after deformation, the excess portion can utilize the characteristic that aluminum is easily deformed in the deformation portion 212, the portion is extruded by pressure in the deformation process, and the other portion can be used for compensating the error of the slot 131, so that the contact area is further increased.
Referring to fig. 3 and 5, two ends of the left insertion-connection portion 210, the middle insertion-connection portion 220, and the right insertion-connection portion 230 are gradually changed in width, and after the left insertion-connection portion 210 and the right insertion-connection portion 230 are inserted, a trumpet-shaped insertion port is formed for the middle insertion-connection portion 220 to be inserted.
And the both sides at middle grafting portion 220 are equipped with the fin, correspond on left grafting portion 210 and the right grafting portion 230 and be equipped with the recess, and the cross section of fin and recess all is isosceles trapezoid.
The installation method of the heat-conducting aluminum strip 200 comprises the following steps:
s1, pre-mounting, first inserting the left inserting portion 210 into the heat dissipating channel 130, so that the left inserting portion 210 is completely located in the heat dissipating channel 130, and then adjusting the orientation by rotation, so that the left inserting portion 210 is aligned with the slot 131.
S2, splicing; after the alignment is completed, the left insertion part 210 is pushed to apply force to the direction of the slot 131, the guide protrusion 132 is inserted into the forked slot 211, the force application is maintained, the deformation parts 212 on the two sides of the forked slot 211 are outwards unfolded through the guide protrusion 132 until being tightly abutted against the bottom wall and the side wall of the slot 131, the left insertion part 210 is straightened at the same time in the process, and the insertion of the left insertion part 210 is completed.
In the plugging process, the whole length direction of the left plugging part 210 is required to apply an acting force, and the straightening is to be completed, so that a force application tool matched by a low-elasticity rubber material and a rigid rod is used for applying the force. The middle thickness of the low-elasticity rubber material is greater than the two sides, the rigid rod is a straight rod, the contact surface of the rigid rod and the low-elasticity rubber material is a plane, and the contact surface of the rigid rod and the low-elasticity rubber material is an inclined surface matched with the left insertion part 210.
When the force is applied, the force application tool is inserted into the heat dissipation channel 130, and both ends of the force application tool are located outside the heat dissipation channel 130, and then the low-elasticity rubber material is abutted on the left insertion part 210, and before the force is applied, the force application tool and the left insertion part 210 are preferably fixed.
The steps of S1 and S2 are repeated to complete the plugging of the right plugging portion 230.
And S3, assembling, namely inserting the middle insertion part 220 between the left insertion part 210 and the right insertion part 230 until the insertion of the middle insertion part 220 is completed.
And S4, fixing, namely applying clamping force from two end faces of the left inserting part 210 and the right inserting part 230 through a clamping tool to locally deform the left inserting part 210 and the right inserting part 230 and press the convex ribs on two sides of the middle inserting part 220, so that the middle inserting part 220 is fixed with the left inserting part 210 and the right inserting part 230.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The utility model provides an alternating current motor stator structure, includes stator body (100), the four corners of stator body (100) all is equipped with a heat dissipation channel (130) that set up along the axial lead direction at least, characterized by: the heat dissipation channel (130) is at least provided with a pair of slots (131) which are arranged along the axial lead direction, and the same pair of slots (131) consists of two coplanar and opposite slots (131); and heat-conducting aluminum strips (200) are inserted into each pair of the slots (131).
2. The alternating current motor stator structure according to claim 1, wherein: the heat-conducting aluminum strip (200) comprises a left inserting part (210) inserted into one slot (131), a right inserting part (230) inserted into the other slot (131), and an intermediate inserting part (220) inserted between the left inserting part (210) and the right inserting part (230).
3. The alternating current motor stator structure according to claim 2, wherein: before the plugging is finished, the left plugging part (210) and the right plugging part (230) are arranged in an arc-shaped bending manner.
4. The alternating current motor stator structure according to claim 3, wherein: the cross section of slot (131) is the frustum of a prism shape, left grafting portion (210) and one side that middle grafting portion (220) was kept away from in right grafting portion (230) all are the toper structure with slot (131) adaptation.
5. The alternating current motor stator structure according to claim 3 or 4, wherein: the left inserting part (210) and the right inserting part (230) are respectively and correspondingly provided with a fork groove (211), and two side parts of the fork groove (211) are turned inwards to form a deformation part (212); the groove bottom of the slot (131) opposite to the opening is provided with a guide protrusion (132) for opening the deformation part (212), and before the insertion is not completed, the forked groove (211) is smaller than the guide protrusion (132).
6. The alternating current motor stator structure according to claim 5, wherein: the two ends of the left insertion part (210), the middle insertion part (220) and the right insertion part (230) are gradually changed in width.
7. The alternating current motor stator structure according to claim 6, wherein: the middle plugging part (220) is connected with the left plugging part (210) and the right plugging part (230) in a plugging way.
8. The alternating current motor stator structure according to claim 7, wherein: convex ribs are arranged on two sides of the middle insertion part (220); grooves are correspondingly arranged on the left inserting part (210) and the right inserting part (230).
9. The alternating current motor stator structure according to claim 8, wherein: the cross sections of the convex ribs and the grooves are isosceles trapezoids.
10. The method of mounting a thermally conductive aluminum strip (200) of claim 8, comprising the steps of:
s1, pre-mounting, namely, inserting the left inserting part (210)/the right inserting part (230) into the heat dissipation channel (130), and aligning the left inserting part (210)/the right inserting part (230) with the slot (131);
s2, splicing; after the alignment is finished, the left inserting part (210)/the right inserting part (230) is pushed to apply force to the direction of the slot (131), so that the guide protrusion (132) is inserted into the forking slot (211), the force is kept, the deformation parts (212) at two sides of the forking slot (211) are outwards spread until the deformation parts are tightly propped against the bottom wall and the side wall of the slot (131), and the left inserting part (210)/the right inserting part (230) are straightened simultaneously in the process; in the above way, the left insertion part (210) and the right insertion part (230) are inserted in sequence;
the left inserting part (210)/the right inserting part (230) is required to apply acting force in the whole length direction, a force application tool matched with a low-elasticity rubber material and a rigid rod piece is adopted, the middle thickness of the low-elasticity rubber material is larger than that of the two sides, the rigid rod piece is a straight rod, and the contact surface of the rigid rod piece and the low-elasticity rubber material is a plane;
s3, assembling, namely inserting the middle insertion part (220) between the left insertion part (210) and the right insertion part (230) until the insertion of the middle insertion part (220) is completed;
and S4, fixing, namely applying clamping force from two end faces of the left insertion part (210) and the right insertion part (230) to locally deform the left insertion part (210) and the right insertion part (230) and press the convex ribs on two sides of the middle insertion part (220), so that the middle insertion part (220) is fixed with the left insertion part (210) and the right insertion part (230).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111467625.5A CN114157062B (en) | 2021-12-02 | 2021-12-02 | Alternating current motor stator structure and mounting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111467625.5A CN114157062B (en) | 2021-12-02 | 2021-12-02 | Alternating current motor stator structure and mounting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114157062A true CN114157062A (en) | 2022-03-08 |
| CN114157062B CN114157062B (en) | 2022-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111467625.5A Active CN114157062B (en) | 2021-12-02 | 2021-12-02 | Alternating current motor stator structure and mounting method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07161882A (en) * | 1993-12-10 | 1995-06-23 | Sumitomo Light Metal Ind Ltd | Heat sink |
| JPH09191587A (en) * | 1995-12-28 | 1997-07-22 | Yaskawa Electric Corp | Stator core of rotating electric machine |
| JP2006149042A (en) * | 2004-11-18 | 2006-06-08 | Yaskawa Electric Corp | Cooling apparatus of rotary electric machine |
| CN101442223A (en) * | 2008-12-29 | 2009-05-27 | 杭州新恒力电机制造有限公司 | AC motor |
| JP2011217450A (en) * | 2010-03-31 | 2011-10-27 | Hitachi Ltd | Stacked stator |
| CN202268778U (en) * | 2011-10-13 | 2012-06-06 | 浙江千里马电机有限公司 | Motor heat dissipation device |
-
2021
- 2021-12-02 CN CN202111467625.5A patent/CN114157062B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07161882A (en) * | 1993-12-10 | 1995-06-23 | Sumitomo Light Metal Ind Ltd | Heat sink |
| JPH09191587A (en) * | 1995-12-28 | 1997-07-22 | Yaskawa Electric Corp | Stator core of rotating electric machine |
| JP2006149042A (en) * | 2004-11-18 | 2006-06-08 | Yaskawa Electric Corp | Cooling apparatus of rotary electric machine |
| CN101442223A (en) * | 2008-12-29 | 2009-05-27 | 杭州新恒力电机制造有限公司 | AC motor |
| JP2011217450A (en) * | 2010-03-31 | 2011-10-27 | Hitachi Ltd | Stacked stator |
| CN202268778U (en) * | 2011-10-13 | 2012-06-06 | 浙江千里马电机有限公司 | Motor heat dissipation device |
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| Publication number | Publication date |
|---|---|
| CN114157062B (en) | 2022-12-13 |
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