CN210380401U - Breakdown-preventing plastic-coated stator - Google Patents
Breakdown-preventing plastic-coated stator Download PDFInfo
- Publication number
- CN210380401U CN210380401U CN201921436825.2U CN201921436825U CN210380401U CN 210380401 U CN210380401 U CN 210380401U CN 201921436825 U CN201921436825 U CN 201921436825U CN 210380401 U CN210380401 U CN 210380401U
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- CN
- China
- Prior art keywords
- breakdown
- winding
- annular
- iron core
- fabrication hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000004033 plastic Substances 0.000 title claims description 16
- 229920003023 plastic Polymers 0.000 title claims description 16
- 238000004804 winding Methods 0.000 claims abstract description 35
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 claims abstract description 28
- 230000015556 catabolic process Effects 0.000 claims abstract description 12
- 238000001746 injection moulding Methods 0.000 claims abstract description 8
- 238000005191 phase separation Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 7
- 239000004576 sand Substances 0.000 claims 2
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 abstract description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 14
- 230000000694 effects Effects 0.000 description 6
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 5
- 239000003063 flame retardant Substances 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000010618 wire wrap Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000006223 plastic coating Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses a prevent that breakdown package moulds stator, including annular core, annular core's annular inner wall equidistance is fixed to the winding rod that extends at the ring center, is formed with the fabrication hole on the annular core cross section that at least one winding rod corresponds, the fabrication hole is loop configuration. Compared with the prior art, the utility model has the following advantages: the structure and the position of the fabrication hole in the utility model are favorable for winding, so that winding is reasonably avoided, and the breakdown problem is effectively prevented; the arrangement of the fabrication holes not only plays roles of manufacturing the iron core and injection molding the insulating layer, but also plays a certain role in heat dissipation, prevents the winding from contacting the iron core, and plays a certain role in insulation.
Description
Technical Field
The utility model relates to a motor stator field especially relates to a prevent to hit and to wear to wrap stator of moulding.
Background
The stator is the stationary part of the motor. The stator consists of three parts, namely a stator iron core, a stator winding and a machine base. The main function of the stator is to generate a rotating magnetic field, and the main function of the rotor is to be cut by magnetic lines of force in the rotating magnetic field to generate (output) current. In the motor, insulation material around the conductors isolates the turns from each other and from the grounded stator core to ensure safe operation of the motor.
The position and the structure of a process hole formed in the existing plastic-coated stator have certain defects, and the effect of preventing high-voltage breakdown is poor.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve lies in: the position and the structure of a process hole formed in the existing plastic-coated stator have certain defects, and the effect of preventing high-voltage breakdown is poor. Therefore, the breakdown-resistant plastic-coated stator is provided.
The utility model discloses a solve above-mentioned technical problem through following technical scheme:
the utility model provides a prevent that breakdown package moulds stator, includes annular core, annular core's annular inner wall equidistance is fixed to the wire wrapping rod that extends at the ring center, is formed with the fabrication hole on the annular core cross section that at least one wire wrapping rod corresponds, the fabrication hole is loop configuration.
Furthermore, a first phase separation protruding strip is arranged on the cross section of the intersection of each winding rod and the annular iron core, and the plurality of process holes are arranged according to the rule that one process hole is formed in each first phase separation protruding strip.
Furthermore, a winding slot is formed between every two adjacent winding rods, an arc-shaped surface is formed on the end surface of each winding rod close to the center of the stator, and the arc-shaped surfaces are annularly arranged by taking the center of the stator as the center and form a hollow circular rotor slot; and the annular iron core, the outer wall of the winding rod and the inner wall of the winding groove are integrally formed with insulating layers in an injection molding mode.
Further, the insulating layer is made of PBT materials.
Furthermore, at least one annular iron core outer edge corresponding to the first phase separation protruding strip is provided with a second phase separation protruding strip.
Furthermore, the annular iron core is formed by clamping the head end and the tail end of two semicircular iron cores, a first clamping seat and a second clamping seat are respectively formed at the head end and the tail end of each semicircular iron core, a clamping groove is formed in the first clamping seat, and a boss matched with the clamping groove in a clamping mode is formed in the second clamping seat.
Furthermore, the inner diameter of the fabrication hole is larger than 0 and smaller than or equal to 2mm, and the thickness of the fabrication hole is 2-3 mm.
Further, the thickness of the fabrication hole is 2.5 mm.
Compared with the prior art, the utility model has the following advantages: the structure and the position of the fabrication hole in the utility model are favorable for winding, so that winding is reasonably avoided, and the breakdown problem is effectively prevented; the arrangement of the fabrication holes not only plays roles of manufacturing the iron core and injection molding the insulating layer, but also plays a certain role in heat dissipation, prevents the winding from contacting the iron core, and plays a certain role in insulation.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail below, and the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1, a breakdown-preventing plastic-coated stator comprises an annular iron core 1, a winding rod 2 extending from the center of a fixed ring of the annular inner wall of the annular iron core 1 at equal intervals, and a fabrication hole 5 formed in the cross section of the annular iron core 1 corresponding to at least one winding rod 2, wherein the fabrication hole 5 is of an annular structure. The fabrication hole 5 is a necessary structure for manufacturing the iron core and injection molding, the annular surface of the fabrication hole 5 with an annular structure is a rounded bulge, so that the contact between the winding and the iron core in the fabrication hole 5 is effectively prevented, and the breakdown prevention effect under high voltage is more easily realized.
A first phase separation convex strip 4 is arranged on the cross section of the intersection of each winding rod 2 and the annular iron core 1, and the plurality of process holes 5 are arranged according to the rule that one process hole 5 is formed in each first phase separation convex strip 4. Therefore, the problem that the incidence of the breakdown phenomenon is increased due to the fact that the process hole 5 is easily pressed when the winding is excessive between two adjacent phases can be effectively avoided.
A winding slot 7 is formed between every two adjacent winding rods 2, an arc-shaped surface 3 is formed on the end surface of each winding rod 2 close to the center of the stator, and a plurality of arc-shaped surfaces 3 are annularly arranged by taking the center of the stator as the center and form a hollow circular rotor slot 31; and the annular iron core 1, the outer wall of the winding rod 2 and the inner wall of the winding groove 7 are integrally formed with an insulating layer in an injection molding mode. The existing plastic-coated stator is manufactured into two insulating sleeves in advance, and then the first iron core 100 and the second iron core 200 are sleeved respectively, so that the process is complicated, the thickness of the iron core sleeved with the insulating sleeves is large, copper wires are wasted in the final copper wire winding process, the structure is unstable, the consistency is poor, and the working efficiency of the motor is low; compared with the prior art, the utility model provides an it forms to mould plastics as an organic whole between insulating layer and the iron core, simple process, and the insulating layer thickness that forms is less, and finally the volume around the copper line is few, greatly reduced wire-wound cost, also improved the work efficiency of motor, and actual operation can know, the utility model discloses in use the cost around the copper line for above-mentioned prior art has reduced 10%, the work efficiency of motor has improved 20%.
The insulating layer is made of PBT material. The PBT material has excellent mechanical properties, high mechanical strength, good fatigue resistance and size stability, small creep deformation, and few changes of the properties under high temperature conditions, and is relatively suitable for motors; meanwhile, the energy consumed for producing the PBT is the lowest in the engineering plastics, which has very important significance for the situation of energy shortage worldwide and greatly reduces the cost of the insulating material in the plastic coating of the motor; the heat aging resistance is excellent, the enhanced UL temperature index reaches 120-140 ℃, in addition, the outdoor long-term aging resistance is also good, and the service life of the plastic coated stator is prolonged; good solvent resistance and no stress cracking. PBT is easy to resist flame and can reach UL94V-0 grade, and due to good affinity performance with a flame retardant, a reactive or additive flame retardant grade is easy to develop, and a flame retardant product is widely applied to the electronic and electrical industry; PBT is easy to decompose when meeting water under high-temperature and high-humidity environment, and needs to be cautious in use; the high-temperature-resistant flame-retardant dielectric material has the advantages of excellent electrical performance, high volume resistivity and dielectric strength, excellent arc resistance and extremely low hygroscopicity, can keep stable electrical performance in humid and high-temperature environments, is an ideal material for manufacturing electronic and electric appliance parts, and plays a good flame-retardant and dielectric role in motors which are easy to generate current breakdown. And the PBT material is easy to form and process and secondary process, is easy to use common equipment for injection molding or extrusion molding, has high crystallization speed and good fluidity, has lower requirements on the temperature of a mold compared with other engineering materials, only needs several seconds when processing a thin-wall part, and only needs 40-60 seconds for a large part, so that the operation is more convenient in the injection molding process of the insulating layer, the recovery rate of the insulating material is improved by secondary processing, and the production cost is reduced.
And a second phase separation convex strip 6 is arranged on the outer edge of the annular iron core 1 corresponding to the at least one first phase separation convex strip 4. The first phase separation convex strips 4 and the second phase separation convex strips 6 are used for further preventing the winding from contacting with the iron core in the fabrication hole 5, and the best insulation effect is achieved.
The annular iron core 1 is formed by clamping the head and the tail ends of two semicircular iron cores, a first clamping seat 11 and a second clamping seat 12 are respectively formed at the head and the tail ends of each semicircular iron core, a clamping groove 111 is formed on the first clamping seat 11, and a boss 121 matched and clamped with the clamping groove 111 is formed on the second clamping seat 12. Annular iron core 1 forms for the equipment block, is favorable to the dismantlement and the installation of stator more, and the convenience is changed the maintenance of inside rotor.
The inner diameter of the process hole 5 is more than 0 mm and less than or equal to 2mm, and is at least less than the width inner diameter of the first phase-separated convex strip 4, so that smooth and normal hole opening is ensured; the thickness is 2 ~ 3mm, and the best does the thickness of fabrication hole 5 is 2.5mm, and the breakdown prevention effect when this thickness is best, does not also influence wire-wound effect simultaneously.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The utility model provides a prevent that breakdown is moulded by package stator, includes annular core (1), the fixed wire winding pole (2) that extend to the ring center of annular inner wall equidistance of annular core (1), its characterized in that: an auxiliary hole (5) is formed in the cross section of the annular iron core (1) corresponding to the at least one winding rod (2), and the auxiliary hole (5) is of an annular structure.
2. The breakdown-preventing plastic-coated stator according to claim 1, wherein: every winding rod (2) is provided with first looks sand grip (4) of separating on the cross section of the crossing department of annular core (1), fabrication hole (5) are a plurality of and set up one according to every first law of separating on the looks sand grip (4) fabrication hole (5).
3. The breakdown-preventing plastic-coated stator according to claim 2, wherein: a winding slot (7) is formed between every two adjacent winding rods (2), an arc-shaped surface (3) is formed on the end surface of each winding rod (2) close to the center of the stator, and a plurality of arc-shaped surfaces (3) are annularly arranged by taking the center of the stator as the center and form a hollow circular rotor slot (31); and the annular iron core (1), the outer wall of the winding rod (2) and the inner wall of the winding groove (7) are integrally formed with insulating layers in an injection molding mode.
4. The breakdown-preventing plastic-coated stator according to claim 3, wherein: the insulating layer is made of PBT material.
5. The breakdown-preventing plastic-coated stator according to claim 4, wherein: and a second phase separation convex strip (6) is arranged on the outer edge of the annular iron core (1) corresponding to the at least one first phase separation convex strip (4).
6. The breakdown-preventing plastic-coated stator according to claim 5, wherein: the annular iron core (1) is formed by clamping the head end and the tail end of two semicircular iron cores, a first clamping seat (11) and a second clamping seat (12) are formed at the head end and the tail end of each semicircular iron core respectively, a clamping groove (111) is formed in the first clamping seat (11), and a boss (121) matched with the clamping groove (111) in a clamped mode is formed in the second clamping seat (12).
7. The breakdown-preventing plastic-coated stator according to claim 6, wherein: the inner diameter of the fabrication hole (5) is larger than 0 mm and is less than or equal to 2mm, and the thickness of the fabrication hole is 2-3 mm.
8. The breakdown-preventing plastic-coated stator according to claim 7, wherein: the thickness of the fabrication hole (5) is 2.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921436825.2U CN210380401U (en) | 2019-09-02 | 2019-09-02 | Breakdown-preventing plastic-coated stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921436825.2U CN210380401U (en) | 2019-09-02 | 2019-09-02 | Breakdown-preventing plastic-coated stator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210380401U true CN210380401U (en) | 2020-04-21 |
Family
ID=70253570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921436825.2U Expired - Fee Related CN210380401U (en) | 2019-09-02 | 2019-09-02 | Breakdown-preventing plastic-coated stator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210380401U (en) |
-
2019
- 2019-09-02 CN CN201921436825.2U patent/CN210380401U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200421 |