CN113098178B - Stator structure - Google Patents
Stator structure Download PDFInfo
- Publication number
- CN113098178B CN113098178B CN202110558836.3A CN202110558836A CN113098178B CN 113098178 B CN113098178 B CN 113098178B CN 202110558836 A CN202110558836 A CN 202110558836A CN 113098178 B CN113098178 B CN 113098178B
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- Prior art keywords
- stator
- ring
- shell
- fixed
- insulating
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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
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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
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
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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
- H02K3/38—Windings characterised by the shape, form or construction of the insulation around winding heads, equalising connectors, or connections thereto
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a stator structure, comprising: stator module and housing assembly, in the cavity that housing assembly formed was located to stator module, stator module included: each tooth part of the stator core is sleeved with an insulating framework; the positioning ring is welded and connected to the yoke part of the stator core; each stator winding is wound on an insulating framework and is electrically connected to a group of connecting wires; the insulating rubber frame is in a ring shape and is fixed on the positioning ring in an adaptive manner; the insulating rubber frame is provided with an annular mounting groove, the wiring copper plate is clamped and fixed in the mounting groove, and each group of connecting wires are fixed on the wiring copper plate; the housing assembly includes: the stator end cover is fixed at the top of the stator shell, and the winding bottom cover is arranged at the bottom of the stator shell; a first sealing element is arranged between the stator end cover and the stator shell, and a second sealing element is arranged between the winding bottom cover and the stator shell.
Description
Technical Field
The invention relates to the technical field of stator manufacturing, in particular to a stator structure.
Background
The stator is a stationary part of the motor or the generator, and consists of a stator core, a stator winding, a stator shell and the like. The stator winding is formed by a plurality of coils or coil groups, and is wound on the stator core to form a phase or the whole electromagnetic circuit. The main function of the stator is to generate a rotating magnetic field through the current in the coil, and the rotor is cut by the magnetic lines of force in the rotating magnetic field to generate (output) current. The existing stator structure is applied to the winding bottom cover due to the weight of the stator core, the winding bottom cover is deformed after long-term use, the normal operation of a stator is affected, and the problems that the internal heat dissipation performance of the existing stator structure is poor, the sealing performance is not effectively improved and the like exist.
Thus, the existing stator structure has drawbacks and needs to be improved.
Disclosure of Invention
The present invention is directed to a stator structure that solves at least one of the problems of the related art or the related art.
The technical scheme of the invention is as follows: the present invention provides a stator structure, comprising: stator module and housing assembly, stator module locates in the cavity that housing assembly formed, stator module includes:
each tooth part of the stator core is sleeved with an insulating framework;
the positioning ring is welded and connected to the yoke part of the stator core;
each stator winding is wound on one insulating framework and is electrically connected to one group of connecting wires;
the insulating rubber frame is in a ring shape and is fixed on the positioning ring in an adaptive mode, and the bottom of the insulating rubber frame is attached to the positioning ring and the yoke part of the stator core;
the insulating rubber frame is provided with an annular mounting groove, the wiring copper plate is clamped and fixed in the mounting groove, and each group of the connecting wires are fixed on the wiring copper plate;
the housing assembly includes: the stator comprises a stator shell, a stator end cover and a winding bottom cover, wherein the stator end cover is fixed at the top of the stator shell, and the winding bottom cover is arranged at the bottom of the stator shell; a first sealing element is arranged between the stator end cover and the stator shell, and a second sealing element is arranged between the winding bottom cover and the stator shell.
Furthermore, a circle of clamping positions are formed on the inner wall of the stator shell, and the positioning circular ring is clamped and fixed on the clamping positions.
Furthermore, a plurality of fixing columns are arranged at the bottom of the insulating rubber frame, a plurality of positioning holes are formed in the positioning circular ring, and the fixing columns are matched in the positioning holes.
Further, the height of the mounting groove is the same as the thickness of the wiring copper plate.
Furthermore, the position of the positioning ring corresponding to the connecting wire is provided with a connecting wire avoiding position, and the position of the connecting wire copper plate corresponding to the avoiding position is provided with a connecting wire fixing buckle.
Further, the insulating skeleton includes: the outer ring framework is clamped on a tooth socket from the outer ring of the stator core, and the inner ring framework is clamped on the tooth socket from the inner ring of the stator core.
Furthermore, a first sealing groove is formed in the stator end cover, the first sealing element is arranged in the first sealing groove, and the first sealing element is a sealing rubber ring.
Furthermore, a second sealing groove is formed in the stator shell, the second sealing element is arranged in the second sealing groove, and the second sealing element is a sealing rubber ring.
Furthermore, the peripheral edge of the winding bottom cover extends upwards to form a flange, and the second sealing element is abutted against the flange.
Furthermore, pouring sealant is arranged in a gap formed by assembling the shell assembly and the stator assembly.
The invention has the following technical effects:
(1) the weight of the iron core is transferred to the stator shell through the positioning ring, the load of the winding bottom cover is reduced, and the problem that the winding bottom cover is deformed easily due to gravity is effectively solved.
(2) According to the stator structure, the first sealing element and the second sealing element are arranged to respectively seal the top end and the bottom end of the stator structure, so that the influence of an external environment on the operation of the stator is reduced, and the service life of the stator is prolonged to a certain extent.
(3) The insulating rubber frame and the wiring copper plate as well as the insulating rubber frame and the positioning ring are mechanically connected, so that the stability is good.
Drawings
Fig. 1 is an exploded view of the stator structure of the present invention.
Fig. 2 is a schematic cross-sectional view of a stator structure of the present invention.
Fig. 3 is a schematic view of a positioning ring of the stator structure of the present invention.
Detailed Description
The invention is described in detail below with reference to the figures and the specific embodiments.
As shown in fig. 1 to 3, the present invention is a stator structure including: the stator assembly comprises a stator assembly 10 and a shell assembly, wherein the stator assembly 10 is installed in a cavity formed by the shell assembly. The stator assembly 10 includes: stator core 11, location ring 12, insulating skeleton 13, a plurality of stator winding 14, wiring copper 15 and insulating rubber frame 16. The housing assembly includes: a stator housing 21, a stator end cover 22 and a bobbin bottom cover 23.
Specifically, each tooth portion of the stator core 11 is sleeved with the insulating framework 13, so as to play an insulating role between the positioning core 11 and the stator winding 14. Positioning ring 12 welded connection in on stator core 11's the yoke portion, form round screens 211 on stator housing 21's the inner wall, positioning ring 12 card is established and is fixed in on the screens 211, it is right stator core 11's support and fixed action play, make stator core 11's weight most apply extremely on stator housing 21, effectively reduced the bearing of wire winding bottom 23, avoided its long-term atress condition of warping easily. In addition, it is worth mentioning that the positioning ring 12 is made of metal, and after the positioning ring is welded to the stator core 11, heat generated by the stator core is conducted to the stator shell 21 through the positioning ring 12, so that the heat dissipation effect inside the stator structure is greatly improved.
In this embodiment the stator core 11 is equipped with 6 tooth portions, and is corresponding, overlaps on each tooth portion and establishes one set of insulating skeleton 13, each stator winding 14 is around locating one on the insulating skeleton 13, stator winding 14 electric connection is on a set of connecting wire 17, the connecting wire 17 other end is connected to outside driving piece through the connection port on the shell subassembly on, through the electric current size and the flow direction in this driving piece drive stator winding 14, realizes the drive to the stator structure. Preferably, as shown in fig. 1, each of the insulating frames 13 includes: outer ring skeleton 131 and inner ring skeleton 132, outer ring skeleton 131 follows the outer ring card of stator core 11 is located on the tooth's socket, inner ring skeleton 132 follows the inner ring card of stator core 11 is located on the tooth's socket, six groups insulating skeleton 13 encircles each tooth's socket of stator core 11 realizes right the tooth portion of stator core 11 is kept apart with stator winding 14's insulation. The insulation framework 13 is clamped and fixed, so that the installation is convenient and fast, and the disassembly is convenient. In addition, the insulating rubber frame 16 is a ring shape and is adapted to be fixed on the positioning ring 12, specifically, the bottom of the insulating rubber frame 16 is provided with a plurality of fixing posts 161, the positioning ring 12 is provided with a plurality of positioning holes 121, and the fixing posts 161 are adapted to the positioning holes 121 to fix the insulating rubber frame 12 on the positioning ring 12. In this embodiment, the fixing posts 161 and the positioning holes 121 are provided in 3 pairs. The mechanical connection of the insulating rubber frame 16 and the positioning ring 12 enables the assembly to be more convenient and the stability to be good. The top surface of the positioning circular ring 12 and the upper surface of the yoke part of the stator core 11 are on the same horizontal plane, the bottom of the insulating rubber frame 16 is attached to the positioning circular ring 12 and the yoke part of the stator core 11, and the insulating rubber frame 16 insulates the top of the stator core 11.
The wiring copper plate 15 is fixedly arranged above the insulating rubber frame 16, specifically, an annular mounting groove (not marked) is formed in the insulating rubber frame 16, the wiring copper plate 15 is clamped and fixed in the mounting groove, and each group of the connecting wires 17 is fixed on the wiring copper plate 15. The insulating rubber frame 16 and the wiring copper plate 15 are mechanically connected, so that the installation is convenient, and the stability is good. Preferably, correspond on the location ring 12 the position of connecting wire 17 is equipped with the connecting wire and dodges position 122, correspond on the wiring copper 15 the position of dodging position 122 is equipped with connecting wire fixing buckle 151, connecting wire 17 passes through dodge a after-fixing in on the fixing buckle 151, fixing buckle 151 plays the fixed regular effect to multiunit connecting wire 17, has avoided multiunit connecting wire 17 at the inside intertwine's of stator structure problem.
In the structure of the housing assembly, the stator cover 22 is fixed on the top of the stator housing 21, and four corners of the stator cover 22 are fixed with the stator housing 21 by four screws in this embodiment. The bottom of the stator housing 21 is provided with a retainer ring 211, and the winding bottom cover 23 is arranged above the retainer ring 211. In order to improve the sealing performance of the stator structure, a first sealing element 31 is arranged between the stator end cover 22 and the stator shell 21, and a second sealing element 32 is arranged between the winding bottom cover 23 and the stator shell 21. Specifically, the stator end cover 22 extends downward along the inner wall of the stator housing 21 to form a sealing ring 221, a first sealing groove 41 is hollowed on one side of the sealing ring 221 facing the stator housing 21, the first sealing element 31 is disposed in the first sealing groove 41, and the first sealing element 31 is a sealing rubber ring. The sealing ring 221 and the first sealing member 31 are provided to ensure sealing performance between the stator housing 21 and the stator cover 22. Further, a second sealing groove 42 is formed in the stator housing 21, the second sealing groove 42 is disposed corresponding to an edge of the bobbin cover 23, in a preferred embodiment, an outer peripheral edge of the bobbin cover 23 extends upward to form a rib 231, the rib 231 seals the second sealing element 32 in the second sealing groove 42, and the second sealing element 32 abuts against the rib 231, so as to achieve a better sealing effect. The second sealing element 32 is also a sealing rubber ring in this embodiment.
In addition, in the embodiment, in order to improve the overall heat dissipation and insulation effects of the stator structure, a potting adhesive is disposed in a gap formed by assembling the housing assembly and the stator assembly, and the potting adhesive may be a commercially available product, such as an epoxy resin potting adhesive, a polyurethane potting adhesive, or an organic silicon potting adhesive.
In the description of the present invention, it is to be understood that the terms "top," "bottom," "above," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and simplicity in description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means one or more unless otherwise specified.
In summary, the invention provides a stator structure, which improves the prior art, and transfers the weight of a stator core to a stator shell by arranging a positioning ring, thereby reducing the load of a winding bottom cover and effectively solving the problem that the winding bottom cover is easily deformed by heavy load. This make stator structure's performance obtain promoting by a wide margin, be worth wideling popularize and use.
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.
Claims (9)
1. A stator structure, comprising: stator module and housing assembly, stator module locates in the cavity that housing assembly formed, stator module includes:
each tooth part of the stator core is sleeved with an insulating framework;
the positioning ring is welded and connected to the yoke part of the stator core;
each stator winding is wound on one insulating framework and is electrically connected to one group of connecting wires;
the insulating rubber frame is in a ring shape and is fixed on the positioning ring in an adaptive mode, and the bottom of the insulating rubber frame is attached to the positioning ring and the yoke part of the stator core;
the insulating rubber frame is provided with an annular mounting groove, the wiring copper plate is clamped and fixed in the mounting groove, and each group of the connecting wires are fixed on the wiring copper plate;
the housing assembly includes: the stator comprises a stator shell, a stator end cover and a winding bottom cover, wherein the stator end cover is fixed at the top of the stator shell, and the winding bottom cover is arranged at the bottom of the stator shell; a first sealing element is arranged between the stator end cover and the stator shell, and a second sealing element is arranged between the winding bottom cover and the stator shell;
and a circle of clamping positions are formed on the inner wall of the stator shell, and the positioning circular ring is clamped and fixed on the clamping positions.
2. The stator structure according to claim 1, wherein a plurality of fixing posts are disposed at the bottom of the insulating rubber frame, a plurality of positioning holes are disposed on the positioning ring, and the fixing posts are adapted in the positioning holes.
3. The stator structure according to claim 1, wherein the height of the mounting groove is the same as the thickness of the wiring copper plate.
4. The stator structure according to claim 2, wherein a connecting wire avoiding position is provided on the positioning ring at a position corresponding to the connecting wire, and a connecting wire fixing buckle is provided on the connecting wire copper plate at a position corresponding to the avoiding position.
5. The stator structure of claim 1, wherein the insulating backbone comprises: the outer ring framework is clamped on a tooth socket from the outer ring of the stator core, and the inner ring framework is clamped on the tooth socket from the inner ring of the stator core.
6. The stator structure of claim 1, wherein the stator end cap defines a first seal groove, the first seal is disposed in the first seal groove, and the first seal is a seal ring.
7. The stator structure according to claim 1 or 6, wherein the stator housing is provided with a second sealing groove, the second sealing element is disposed in the second sealing groove, and the second sealing element is a sealing rubber ring.
8. The stator structure of claim 7, wherein the peripheral edge of the bobbin base cover extends upward to form a rib, and the second sealing member abuts against the rib.
9. The stator structure of claim 1, wherein a gap formed by assembling the shell assembly and the stator assembly is filled with a pouring sealant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110558836.3A CN113098178B (en) | 2021-05-21 | 2021-05-21 | Stator structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110558836.3A CN113098178B (en) | 2021-05-21 | 2021-05-21 | Stator structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113098178A CN113098178A (en) | 2021-07-09 |
| CN113098178B true CN113098178B (en) | 2021-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110558836.3A Active CN113098178B (en) | 2021-05-21 | 2021-05-21 | Stator structure |
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| Country | Link |
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| CN (1) | CN113098178B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113629901B (en) * | 2021-07-19 | 2022-12-30 | 贝德凯利电气(苏州)有限公司 | Disc type motor structure |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4528015B2 (en) * | 2004-04-06 | 2010-08-18 | 新日本製鐵株式会社 | Low iron loss internal motor |
| JP5603725B2 (en) * | 2010-09-22 | 2014-10-08 | 日本電産サンキョー株式会社 | Pump device |
| JP5718391B2 (en) * | 2013-02-22 | 2015-05-13 | 三菱電機株式会社 | Rotating electric machine |
| CN205960807U (en) * | 2016-07-12 | 2017-02-15 | 李金东 | Brushless motor |
| CN111416462A (en) * | 2020-05-08 | 2020-07-14 | 苏州萨得尔电动工具有限公司 | High-speed brushless motor of screwless structure |
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2021
- 2021-05-21 CN CN202110558836.3A patent/CN113098178B/en active Active
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| Publication number | Publication date |
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| CN113098178A (en) | 2021-07-09 |
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Address after: 215101 floor 1-3, building 5, No. 8, Yangyun Road, Suzhou Industrial Park, Suzhou City, Jiangsu Province Patentee after: Bedkelly electric (Suzhou) Co.,Ltd. Address before: 518000 Room 101, building a, 33 Jinlong 3rd road, Tongle community, Baolong street, Longgang District, Shenzhen City, Guangdong Province Patentee before: BETTER-CARRY ELECTRICS SHENZHEN CO.,LTD. |
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