CN217115772U - High-temperature-resistant shielding type permanent magnet motor stator structure - Google Patents
High-temperature-resistant shielding type permanent magnet motor stator structure Download PDFInfo
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- CN217115772U CN217115772U CN202220674558.8U CN202220674558U CN217115772U CN 217115772 U CN217115772 U CN 217115772U CN 202220674558 U CN202220674558 U CN 202220674558U CN 217115772 U CN217115772 U CN 217115772U
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Abstract
The utility model discloses a high temperature resistant shielding formula permanent-magnet machine stator structure, metal casing (8) both ends are by metal flange (4) welded fastening, make inside airtight space (9) that forms. The motor metal shell (8) is made of high-strength corrosion-resistant metal materials, and can effectively block high-temperature liquid with radiation characteristics from directly contacting motor parts. The stator winding (1) and the auxiliary winding (2) are completely shielded inside the metal shell (8). The inner diameter of the stator coil (7) is provided with a corrosion-resistant metal thin shielding sleeve (6) which mainly plays a role in isolating high-temperature corrosive liquid. The stator structure can work in a liquid environment with temperature resistance below 350 ℃ for a long time, the metal thin shielding sleeve is arranged on the inner diameter of the stator, the reinforcing and supporting metal ring is arranged on the inner diameter of the end part of the stator winding coil, the stator winding coil can be suitable for being used in a liquid environment which requires radiation resistance and corrosion resistance and has certain pressure, and the stator winding coil is applied to a control rod driving mechanism motor, compact in structure and high in reliability.
Description
Technical Field
The utility model discloses a be applied to small-size nuclear reactor control rod actuating mechanism's motor stator structure, specifically be a high temperature resistant shielding formula permanent-magnet machine stator structure.
Background
The existing synchronous reluctance shielding motor is characterized in that the stator is made of an inorganic insulating material, a plurality of tooth grooves which are radially and uniformly distributed and axially extend and are used for embedding coils are formed in the inner wall of the stator core, insulating layers are laid in the tooth grooves, a shielding spacer sleeve is arranged on the first iron core and on the opening side of the tooth grooves, end plates are arranged at two axial ends of the shell, a closed cavity used for packaging the first iron core and the coils is formed by the shell, the two end plates and the shielding spacer sleeve, and fillers are filled in the closed cavity. Reluctance motors are less salient than permanent magnet synchronous canned motors and therefore have less torque density and power factor than the latter. The isolation sleeve is a non-metal component, is not corrosion-resistant, wear-resistant, pressure-bearing, large in thickness and large in motor smell, and causes poor motor performance.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high temperature resistant shielding formula permanent-magnet machine stator structure can install inside reactor loop system control rod actuating mechanism to reduce reactor height and system complexity, promote reactor shock resistance, can use for a long time under 350 ℃ liquid environment moreover.
The utility model discloses a realize like this: the utility model provides a high temperature resistant shielding formula permanent-magnet machine stator structure, includes metal casing (8), stator winding (1), auxiliary winding (2), stator coil (7) and auxiliary winding coil (10), metal casing (8) both ends are by metal flange (4) welded fastening, make inside formation confined space (9). The motor metal shell (8) is made of high-strength corrosion-resistant metal materials, and can effectively block high-temperature liquid with radiation characteristics from directly contacting motor parts. The stator winding (1) and the auxiliary winding (2) are completely shielded inside the metal shell (8). Because high-temperature high-pressure liquid with radiation characteristic exists in a loop system of the reactor, the inner diameter of the stator coil (7) is provided with the corrosion-resistant metal thin shielding sleeve (6) which mainly plays a role in isolating high-temperature corrosive liquid.
Furthermore, the stator coil (7) and the auxiliary winding coil (10) are insulated in the slots, the insulating material is mainly made of mica materials, and mica is directly led out as a lead wire around an enameled round copper wire.
Furthermore, reinforcing support metal rings (3) are arranged at the inner diameter positions of the front end part and the rear end part of the stator winding (1) and the auxiliary winding coil (2) to ensure that the stator winding can bear larger pressure.
Further, the thickness of the metal thin shielding sleeve (6) is generally 0.4-0.6 mm.
Compared with the prior art, the beneficial effects of the utility model are that: the stator coil is made of inorganic insulating materials, can work in a liquid environment resistant to temperature below 350 ℃ for a long time, has a design life of 60 years, is provided with a metal thin shielding sleeve in the inner diameter of the stator, is provided with a reinforced supporting metal ring in the inner diameter of the end part of the stator winding coil, can be suitable for being used in a liquid environment which requires radiation resistance and corrosivity and has certain pressure, and is small in thickness of the metal thin shielding sleeve, small in motor air gap and excellent in motor performance. The utility model discloses be applied to control rod drive mechanism motor, have compact structure moreover, characteristics that the reliability is high have improved the security of control rod drive mechanism operation greatly.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic view of a stator structure.
In the figure: 1. a stator winding; 2. an auxiliary winding; 3. a reinforcing support metal ring; 4. a first flange; 5. a second flange; 6. a thin metallic shielding sleeve; 7. a stator coil; 8. a housing; 9. a space; 10. an auxiliary winding coil.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, the high temperature resistant shielding permanent magnet motor stator structure comprises a metal shell 8, a stator winding 1, an auxiliary winding 2, a stator coil 7 and an auxiliary winding coil 10, wherein two ends of the metal shell 8 are welded and fixed by metal flanges 4, so that a closed space 9 is formed inside. The motor metal shell 8 is made of high-strength corrosion-resistant metal materials, and can effectively block high-temperature liquid with radiation characteristics from directly contacting motor parts. The stator winding 1 and the auxiliary winding 2 are completely shielded inside the metal casing 8. Because high-temperature and high-pressure liquid with radiation characteristic exists in the reactor primary loop system, the corrosion-resistant metal thin shielding sleeve 6 is arranged on the inner diameter of the stator coil 7 and mainly plays a role in isolating high-temperature corrosive liquid. The stator coil 7 and the auxiliary winding coil 10 are insulated in slots, the insulating material is mainly made of mica materials, and mica is directly led out as a lead wire around an enameled round copper wire. And reinforcing and supporting metal rings 3 are arranged at the inner diameter positions of the front end part and the rear end part of the stator winding 1 and the auxiliary winding coil 10 to ensure that the stator winding can bear higher pressure.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a high temperature resistant shielding formula permanent-magnet machine stator structure, its characterized in that, includes metal casing (8), stator winding (1), auxiliary winding (2), stator coil (7) and auxiliary winding coil (10), metal casing (8) both ends are by metal flange (4) welded fastening, make inside airtight space (9) that forms, stator winding (1) and auxiliary winding (2) shield completely inside metal casing (8), are equipped with corrosion-resistant metal thin shielding cover (6) at stator coil (7) internal diameter.
2. The stator structure of a high-temperature-resistant shielding permanent magnet motor according to claim 1, wherein the stator coil (7) and the auxiliary winding coil (10) are insulated in the slots, the insulation material is mainly made of mica material, and mica is directly led out as a lead wire around an enameled round copper wire.
3. The stator structure of the high-temperature-resistant shielding permanent magnet motor according to claim 1, wherein reinforcing support metal rings (3) are arranged at the positions of the inner diameters of the front end part and the rear end part of the stator winding (1) and the auxiliary winding coil (10).
4. The stator structure of a high temperature resistant shielding permanent magnet motor according to claim 1, wherein the thickness of the thin metal shielding sleeve (6) is 0.4-0.6 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220674558.8U CN217115772U (en) | 2022-03-27 | 2022-03-27 | High-temperature-resistant shielding type permanent magnet motor stator structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220674558.8U CN217115772U (en) | 2022-03-27 | 2022-03-27 | High-temperature-resistant shielding type permanent magnet motor stator structure |
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| Publication Number | Publication Date |
|---|---|
| CN217115772U true CN217115772U (en) | 2022-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220674558.8U Active CN217115772U (en) | 2022-03-27 | 2022-03-27 | High-temperature-resistant shielding type permanent magnet motor stator structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117155026A (en) * | 2023-10-31 | 2023-12-01 | 上海核工程研究设计院股份有限公司 | High-temperature-resistant high-pressure-resistant permanent magnet synchronous shielding controllable motor and working method thereof |
-
2022
- 2022-03-27 CN CN202220674558.8U patent/CN217115772U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117155026A (en) * | 2023-10-31 | 2023-12-01 | 上海核工程研究设计院股份有限公司 | High-temperature-resistant high-pressure-resistant permanent magnet synchronous shielding controllable motor and working method thereof |
| CN117155026B (en) * | 2023-10-31 | 2024-01-26 | 上海核工程研究设计院股份有限公司 | High-temperature-resistant high-pressure-resistant permanent magnet synchronous shielding controllable motor and working method thereof |
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