CN111404300A - Assembly structure, stator module and motor - Google Patents
Assembly structure, stator module and motor Download PDFInfo
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- CN111404300A CN111404300A CN202010230553.1A CN202010230553A CN111404300A CN 111404300 A CN111404300 A CN 111404300A CN 202010230553 A CN202010230553 A CN 202010230553A CN 111404300 A CN111404300 A CN 111404300A
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- framework
- groove
- stator core
- skeleton
- assembly
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
- H02K3/345—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation between conductor and core, e.g. slot insulation
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The present invention provides an assembly structure, including: a stator core including a tooth portion; the first framework is provided with a first framework groove; the stator core is assembled with the first framework, the tooth portion is inserted into the first framework groove, the tooth portion is provided with a first stepped structure, and the section area of the first stepped structure is gradually decreased along the insertion direction. According to the stator core and up-and-down splicing type framework assembly structure, the stepped surface design of the tooth part insertion part is adopted, so that surface assembly during framework installation is converted into point assembly, the positioning is simple, and the operation is convenient. Simultaneously, a reinforcing structure is designed on the matching surface of the framework tooth part and the iron core, so that the strength of the framework is increased, the thickness of a framework base plate can be reduced, the circumference of the stator tooth part is reduced, the using amount of the enameled wire is reduced, and the cost is reduced.
Description
Technical Field
The invention belongs to the technical field of motors, and particularly relates to an assembly structure, a stator assembly and a motor.
Background
Permanent magnet brushless motor stator component part includes skeleton, iron core, enameled wire, and during the assembly, insert the iron core with the skeleton after again with the enameled wire around in the stator slot, the effect of skeleton is isolated iron core and enameled wire, prevents electrical short circuit.
When the stator core is assembled with the framework of the upper and lower splicing structures, the matching parts are more, and the matching surface is irregular, so that the assembly is difficult.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is that the stator core and the framework are difficult to assemble.
In order to solve the above problem, the present invention provides an assembly structure including:
a stator core including a tooth portion;
the first framework is provided with a first framework groove;
the stator core is assembled with the first framework, the tooth portion is inserted into the first framework groove, the tooth portion is provided with a first stepped structure, and the section area of the first stepped structure is gradually decreased along the insertion direction.
Preferably, the assembly structure further comprises a second framework, a second framework groove is formed in the second framework, the stator core is assembled with the second framework, the tooth portion is inserted into the second framework groove, a second stepped structure is arranged on the tooth portion, and the cross-sectional area of the second stepped structure decreases progressively along the insertion direction.
Preferably, the bottom of the first side wall of the first framework groove along the circumferential direction of the first framework is provided with a first reinforcing structure for increasing the thickness of the first side wall along the circumferential direction of the first framework, and the first reinforcing structure can increase the strength of the bottom angle of the first framework groove.
Preferably, the first reinforcing structure is matched with the first stepped structure, and the surface of the tooth part is attached to the inner wall of the first framework groove.
Preferably, the bottom of the second side wall of the second skeleton groove along the circumferential direction of the second skeleton is provided with a second reinforcing structure for increasing the thickness of the second side wall along the circumferential direction of the second skeleton, and the second reinforcing structure can increase the strength of the bottom angle of the second skeleton groove.
Preferably, the second reinforcing structure is matched with the second stepped structure, and the surface of the tooth part is attached to the inner wall of the second framework groove.
Preferably, the first frame and the second frame are respectively assembled on two end faces of the stator core along the axial direction, and the first frame slot and the second frame slot are respectively assembled on two ends of the tooth part along the axial direction of the stator core.
Preferably, the end surface of the first skeleton groove facing the stator core is a slope surface inclined along the circumferential direction, and/or the end surface of the second skeleton groove facing the stator core is a slope surface inclined along the circumferential direction.
A stator assembly, adopts any above-mentioned assembly structure.
An electric machine employing the assembly structure of any of the above.
The assembly structure, the stator assembly and the motor provided by the invention at least have the following beneficial effects:
according to the stator core and up-and-down splicing type framework assembly structure, the stepped surface design of the tooth part insertion part is adopted, so that surface assembly during framework installation is converted into point assembly, the positioning is simple, and the operation is convenient. Simultaneously, a reinforcing structure is designed on the matching surface of the framework tooth part and the iron core, so that the strength of the framework is increased, the thickness of a framework base plate can be reduced, the circumference of the stator tooth part is reduced, the using amount of the enameled wire is reduced, and the cost is reduced.
Drawings
Fig. 1 is a schematic view of an assembly structure of an embodiment of the present invention.
FIG. 2 is a schematic diagram of a cross section of an assembly structure of an embodiment of the present invention in comparison to an assembly structure of the prior art.
The reference numerals are represented as:
1. a stator core; 2. a tooth portion; 3. a first skeleton; 4. a first skeleton groove; 5. a first stepped structure; 6. a second skeleton; 7. a second skeleton groove; 8. a second stepped structure; 9. a first reinforcing structure; 10. a second reinforcing structure.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The existing full-circle stator core structure is provided with a slot, the enameled wire is placed in the slot, the slot is separated from the slot to form a stator tooth part, and the enameled wire is wound. The spliced framework structure is formed by splicing an upper framework and a lower framework, is made of plastic generally and is used for forming effective insulation between a stator core and an enameled wire.
During assembly, the framework slots need to be inserted into the iron core slots, the iron core tooth parts are inserted between the framework slots and the slots, the upper framework and the lower framework are assembled in the same mode, the framework slot planes and the iron core planes need to be aligned during installation due to the fact that the number of the slots is large and the slot shapes are irregular, and the framework slots and the iron core slots can be inserted only when matching surfaces of the framework slots and the iron core slots are in one-to-one correspondence, so that the operation requirement is high, the installation is difficult, and the production efficiency is low.
The next procedure is to wind the enameled wire, and because of the influence of pressing force when the enameled wire is wound, the framework is easy to deform and break due to extrusion, and the thickness of the bottom plate of the framework is generally increased to improve the strength of the framework. Therefore, the consumption of the enameled wire is increased, the resistance is increased, the heating is serious, and the performance of the motor is reduced.
As shown in fig. 1 to 2, an embodiment of the present invention provides an assembly structure, including: a stator core 1, the stator core 1 including a tooth portion 2; the first framework 3 is provided with a first framework groove 4; the stator core 1 is assembled with the first framework 3, the tooth part 2 is inserted into the first framework groove 4, the tooth part 2 is provided with a first stepped structure 5, and the section area of the first stepped structure 5 is gradually reduced along the insertion direction.
In the assembling structure of the embodiment of the invention, the tooth part 2 of the stator core 1 is provided with a stepped structure, and the assembling is carried out. The tooth part 2 and the first framework groove 4 can be conveniently positioned by adopting the step section with the smaller cross section, so that the tooth part 2 can be conveniently inserted into the first framework groove 4, the assembly efficiency of the stator core 1 and the framework is improved, and the production efficiency is improved.
Preferably, the assembly structure further includes a second framework 6, a second framework groove 7 is formed in the second framework 6, the stator core 1 is assembled with the second framework 6, the tooth portion 2 is inserted into the second framework groove 7, a second stepped structure 8 is formed in the tooth portion 2, and the cross-sectional area of the second stepped structure 8 decreases progressively along the insertion direction.
Preferably, the first and second bobbins 3 and 6 are respectively fitted to both end surfaces of the stator core 1 in the axial direction, and the first and second bobbin slots 4 and 7 are respectively fitted to both ends of the tooth portion 2 in the axial direction of the stator core 1.
Preferably, the end surface of the first skeleton groove 4 facing the stator core 1 is a slope surface inclined in the circumferential direction, and/or the end surface of the second skeleton groove 7 facing the stator core 1 is a slope surface inclined in the circumferential direction. The domatic notch has a summit or topside, and during the assembly, the summit or topside of the domatic notch of skeleton groove and stator core 1's plane contact at first to can adopt the alignment of point and face, the condition that a plurality of faces align when replacing former plane notch, the former is the degree of difficulty greatly reduced of the alignment of the latter, in case summit or topside have alignd the cooperation position of tooth portion 2, the assembly can be accomplished according to domatic location guide to skeleton and stator core 1, greatly reduced the operation degree of difficulty, improved production efficiency.
Preferably, a first reinforcing structure 9 for increasing the thickness of the first side wall in the circumferential direction of the first framework 3 is provided at the bottom of the first side wall of the first framework groove 4 in the circumferential direction of the first framework 3, and the first reinforcing structure 9 can increase the strength of the bottom corner of the first framework groove 4. The first reinforcing structure 9 is matched with the first stepped structure 5, and the surface of the tooth part 2 is attached to the inner wall of the first framework groove 4. The bottom of a second side wall of the second framework groove 7 in the circumferential direction of the second framework 6 is provided with a second reinforcing structure 10 for increasing the thickness of the second side wall in the circumferential direction of the second framework 6, and the second reinforcing structure 10 can increase the strength of the bottom angle of the second framework groove 7. The second reinforcing structure 10 is matched with the second stepped structure 8, and the surface of the tooth part 2 is attached to the inner wall of the second framework groove 7.
The reinforced structure of the embodiment of the invention thickens the vertical wall thickness of the framework, makes up the deficiency of the strength of the vertical structure of the existing framework, and enables the pressure of the enameled wire to be uniformly released on the vertical and horizontal surfaces of the four corners of the framework, so that the transverse plate thickness of the framework can be properly reduced.
Fig. 2 is a schematic diagram showing a comparison between the sectional dimensions of a conventional stator tooth and those of a stator tooth according to the present invention, where the conventional stator tooth is on the left side and the conventional stator tooth is on the right side, it can be seen that, under the condition that the height of a stator core 1 is not changed, the conventional stator winding height dimension is a, the end dimension is B, and the winding circumference is 2 × (a + B). in this embodiment, since a reinforcing structure is added at the bottom of a skeleton slot, the thickness of the bottom plate of the skeleton can be reduced, the winding height dimension is reduced to (a-2a) by reducing the thicknesses of the two skeleton bottom plates, the winding end width dimension is reduced to (B-2B) by the ladder structure of the tooth 2, the winding circumference can be reduced to 2 × (a + B) -2 × (2a +2B), and the usage of enamel wire is reduced along with the reduction in the circumference of the tooth 2, so that.
The stator core 1 of this embodiment and the installation cooperation structure of skeleton can reduce the quantity of enameled wire raw and other materials, and reduce cost improves motor efficiency to location when simplifying skeleton and iron core assembly reduces the operation degree of difficulty, improves the convenience of assembly, improves production efficiency.
A stator assembly, adopts any above-mentioned assembly structure.
An electric machine employing the assembly structure of any of the above.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.
Claims (10)
1. An assembling structure, characterized by comprising:
a stator core (1), the stator core (1) comprising teeth (2);
the first framework (3), a first framework groove (4) is arranged on the first framework (3);
the stator core (1) is assembled with the first framework (3), the tooth part (2) is inserted into the first framework groove (4), a first stepped structure (5) is arranged on the tooth part (2), and the section area of the first stepped structure (5) is gradually reduced along the insertion direction.
2. The assembly structure according to claim 1, further comprising a second frame (6), wherein a second frame groove (7) is formed in the second frame (6), the stator core (1) is assembled with the second frame (6), the tooth portion (2) is inserted into the second frame groove (7), a second stepped structure (8) is formed in the tooth portion (2), and the cross-sectional area of the second stepped structure (8) decreases in the insertion direction.
3. The fitting structure according to claim 1 or 2, characterized in that the bottom of the first side wall of the first skeleton groove (4) in the circumferential direction of the first skeleton (3) is provided with a first reinforcing structure (9) that increases the thickness of the first side wall in the circumferential direction of the first skeleton (3), the first reinforcing structure (9) being capable of increasing the strength of the bottom corner of the first skeleton groove (4).
4. The arrangement, as set forth in claim 3, characterized in that the first reinforcement structure (9) is matched to the first step structure (5), the surface of the tooth (2) being in abutment with the inner wall of the first cage groove (4).
5. The fitting structure according to claim 2, characterized in that the bottom of the second side wall of the second skeleton groove (7) in the circumferential direction of the second skeleton (6) is provided with a second reinforcing structure (10) for increasing the thickness of the second side wall in the circumferential direction of the second skeleton (6), and the second reinforcing structure (10) can increase the strength of the bottom corner of the second skeleton groove (7).
6. The arrangement, as set forth in claim 5, characterized in that the second reinforcement structure (10) is matched to the second step structure (8), the surface of the tooth (2) being in abutment with the inner wall of the second skeleton groove (7).
7. The fitting structure according to claim 2, wherein the first bobbin (3) and the second bobbin (6) are fitted to both end surfaces of the stator core (1) in the axial direction, and the first bobbin slot (4) and the second bobbin slot (7) are fitted to both ends of the tooth portion (2) in the axial direction of the stator core (1), respectively.
8. An assembly structure according to any one of claims 2-7, characterized in that the end surfaces of the first skeleton grooves (4) facing the stator core (1) are circumferentially inclined ramp surfaces and/or the end surfaces of the second skeleton grooves (7) facing the stator core (1) are circumferentially inclined ramp surfaces.
9. A stator assembly, characterized in that the assembly structure according to any one of claims 1-8 is used.
10. An electric machine, characterized in that the assembly structure according to any one of claims 1-8 is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010230553.1A CN111404300A (en) | 2020-03-27 | 2020-03-27 | Assembly structure, stator module and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010230553.1A CN111404300A (en) | 2020-03-27 | 2020-03-27 | Assembly structure, stator module and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111404300A true CN111404300A (en) | 2020-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010230553.1A Pending CN111404300A (en) | 2020-03-27 | 2020-03-27 | Assembly structure, stator module and motor |
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| Country | Link |
|---|---|
| CN (1) | CN111404300A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3724446B2 (en) * | 2002-04-01 | 2005-12-07 | 日産自動車株式会社 | Motor armature structure |
| CN101189779A (en) * | 2005-11-11 | 2008-05-28 | 住友电气工业株式会社 | Motor core part and motor part |
| CN206878563U (en) * | 2017-05-25 | 2018-01-12 | 广东威灵电机制造有限公司 | Toothing, electric machine iron core and the motor of electric machine iron core |
| CN109075645A (en) * | 2016-04-12 | 2018-12-21 | 三菱电机株式会社 | Motor, compressor and freezing cycle device |
| CN208445360U (en) * | 2018-08-13 | 2019-01-29 | 珠海格力电器股份有限公司 | Stator and motor |
| CN109450141A (en) * | 2018-12-12 | 2019-03-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Insulation framework, stator module and motor |
-
2020
- 2020-03-27 CN CN202010230553.1A patent/CN111404300A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3724446B2 (en) * | 2002-04-01 | 2005-12-07 | 日産自動車株式会社 | Motor armature structure |
| CN101189779A (en) * | 2005-11-11 | 2008-05-28 | 住友电气工业株式会社 | Motor core part and motor part |
| CN109075645A (en) * | 2016-04-12 | 2018-12-21 | 三菱电机株式会社 | Motor, compressor and freezing cycle device |
| CN206878563U (en) * | 2017-05-25 | 2018-01-12 | 广东威灵电机制造有限公司 | Toothing, electric machine iron core and the motor of electric machine iron core |
| CN208445360U (en) * | 2018-08-13 | 2019-01-29 | 珠海格力电器股份有限公司 | Stator and motor |
| CN109450141A (en) * | 2018-12-12 | 2019-03-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Insulation framework, stator module and motor |
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Application publication date: 20200710 |