CN202183663U - Insulating structure for variable frequency motor solenoids - Google Patents
Insulating structure for variable frequency motor solenoids Download PDFInfo
- Publication number
- CN202183663U CN202183663U CN201120285824XU CN201120285824U CN202183663U CN 202183663 U CN202183663 U CN 202183663U CN 201120285824X U CN201120285824X U CN 201120285824XU CN 201120285824 U CN201120285824 U CN 201120285824U CN 202183663 U CN202183663 U CN 202183663U
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- CN
- China
- Prior art keywords
- solenoids
- solenoid
- insulating
- frequency motor
- composite insulating
- 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
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- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
Disclosed is an insulating structure for variable frequency motor solenoids, comprising a stator groove and solenoids, wherein the solenoids are arranged in the stator groove via a first composite insulating foil and a polyester film; two adjacent solenoids are mutually insulated via a second composite insulating foil; and a jaw opening of the stator groove is provided with a slot wedge. Before adopting the above technical scheme, the winding vacuum of the solenoids are soaked in H-level insulating varnish for two times, and then the end portions are brushed with epoxy resin glue. The lead wire of the solenoids adopts the silicone rubber insulating cable (JHXG-1000). The insulating structure of the utility model is applicable to variable frequency motors with seat No as 450 or below and with rated voltage below 1140 V. The insulating structure of the utility model, with excellent insulating effect, can fully meet the operating requirement of a variable frequency power source. As there is no dV/dT peak pulse of large amplitude any more while employing the insulating structure, the turn-to-turn fault can be avoided amid the using process.
Description
Technical field
The utility model belongs to the electrical machine insulation technical field, relates in particular to a kind of insulation system of variable-frequency motor solenoid.
Background technology
In technique known; The design of 1140V variable-frequency motor only is directed against the mechanical part and the electromagnet portion of motor, and seldom takes measures for the insulation system of solenoid, generally still uses the insulation system of non-frequency motor electromagnetic coil; And because the particularity of variable frequency power supply; Harmonic content is big, in servicely exists the very big dV/dT spike of amplitude, is easy in use occur turn-to-turn fault.
The utility model content
The utility model provides a kind of instructions for use of in variable-frequency motor, satisfying variable frequency power supply in order to solve weak point of the prior art, avoids the use of the insulation system of the variable-frequency motor solenoid that occurs turn-to-turn fault in the process.
For solving the problems of the technologies described above; The utility model adopts following technical scheme: the insulation system of variable-frequency motor solenoid; Comprise stator slot and solenoid; Solenoid is arranged in the stator slot through first composite insulating foil and polyester film, and through the second composite insulating foil mutually insulated, the opening part of stator slot is provided with slot wedge between adjacent two solenoids.
Said first composite insulating foil and second composite insulating foil are the thick double-decker of 0.23mm, and polyester film is the thick single layer structure of 0.05mm.
The first circle of said solenoid coiling and the end of last circle are with glass lacquer pipe respectively, and the first circle of every group of coil and the straight line portion of last circle are lined with the 3rd thick composite insulating foil of 0.23mm.
The winding overhang of said every solenoid is used the binding strap colligation.
Before adopting technique scheme, earlier the winding vacuum of solenoid is soaked H class F insulation lacquer twice, the dipping lacquer rearward end is brush ring epoxy resins glue again.The lead wire of solenoid adopts silicon rubber insulated cable (JHXG-1000).The utility model is applicable to seat No. 450 and following, the variable-frequency motor of rated voltage below 1140V; Insulation effect is good; Can fully satisfy the instructions for use of variable frequency power supply, in servicely no longer include the very big dV/dT spike of amplitude, thereby avoid in use occurring turn-to-turn fault.
Description of drawings
Fig. 1 is the sketch map of coil insulation after the solenoid coiling of the utility model;
The sectional view that the solenoid insulation is arranged in each stator slot in the middle of Fig. 2 the utility model.
Embodiment
As depicted in figs. 1 and 2; The insulation system of the variable-frequency motor solenoid of the utility model; Comprise stator slot 1 and solenoid 2; Solenoid 2 is arranged in the stator slot with polyester film 4 through first composite insulating foil 3, and through second composite insulating foil, 5 mutually insulateds, the opening part of stator slot 1 is provided with slot wedge 6 between adjacent two solenoids 2.First composite insulating foil 3 and second composite insulating foil 5 are the thick double-decker of 0.23mm, and polyester film 4 is the thick single layer structure of 0.05mm.The first circle of solenoid 2 coilings and the end of last circle are with glass lacquer pipe 7 respectively, and the first circle of every group of coil and the straight line portion of last circle are lined with the 3rd thick composite insulating foil of 0.23mm (owing to the view direction reason, not demonstrating the 3rd composite insulating foil).The winding overhang of every solenoid 2 is with binding strap 8 colligations.Solenoid 2 adopts the 200 grades of enamel-covers of anti-corona circle copper QP-3/200 of paste paint films, and first composite insulating foil 3, two composite insulating foils 5 and the 3rd composite insulating foil are TFT, and binding strap 8 is with for PST.
Before adopting above-mentioned insulation technology scheme, earlier the winding vacuum of solenoid 2 is soaked H class F insulation lacquer twice, the dipping lacquer rearward end is brush ring epoxy resins glue again.The lead wire 9 of solenoid 2 adopts silicon rubber insulated cable (JHXG-1000).The utility model is applicable to seat No. 450 and following, the variable-frequency motor of rated voltage below 1140V.
Claims (4)
1. the insulation system of variable-frequency motor solenoid; It is characterized in that: comprise stator slot and solenoid; Solenoid is arranged in the stator slot through first composite insulating foil and polyester film, and through the second composite insulating foil mutually insulated, the opening part of stator slot is provided with slot wedge between adjacent two solenoids.
2. the insulation system of variable-frequency motor solenoid according to claim 1 is characterized in that: said first composite insulating foil and second composite insulating foil are the thick double-decker of 0.23mm, and polyester film is the thick single layer structure of 0.05mm.
3. the insulation system of variable-frequency motor solenoid according to claim 1 and 2; It is characterized in that: the first circle of said solenoid coiling and the end of last circle are with glass lacquer pipe respectively, and the first circle of every group of coil and the straight line portion of last circle are lined with the 3rd thick composite insulating foil of 0.23mm.
4. the insulation system of variable-frequency motor solenoid according to claim 3 is characterized in that: the winding overhang of said every solenoid is used the binding strap colligation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120285824XU CN202183663U (en) | 2011-08-08 | 2011-08-08 | Insulating structure for variable frequency motor solenoids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120285824XU CN202183663U (en) | 2011-08-08 | 2011-08-08 | Insulating structure for variable frequency motor solenoids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202183663U true CN202183663U (en) | 2012-04-04 |
Family
ID=46176684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120285824XU Expired - Fee Related CN202183663U (en) | 2011-08-08 | 2011-08-08 | Insulating structure for variable frequency motor solenoids |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202183663U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337924A (en) * | 2013-06-27 | 2013-10-02 | 苏州巨峰电气绝缘系统股份有限公司 | Ammonia refrigerant resistant motor electrical insulation system |
| CN104901459A (en) * | 2015-07-06 | 2015-09-09 | 永济新时速电机电器有限责任公司 | Converter-powered loose winding motor |
| CN113131691A (en) * | 2019-12-30 | 2021-07-16 | 新疆金风科技股份有限公司 | Motor forming coil and forming method and forming system thereof |
-
2011
- 2011-08-08 CN CN201120285824XU patent/CN202183663U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337924A (en) * | 2013-06-27 | 2013-10-02 | 苏州巨峰电气绝缘系统股份有限公司 | Ammonia refrigerant resistant motor electrical insulation system |
| CN104901459A (en) * | 2015-07-06 | 2015-09-09 | 永济新时速电机电器有限责任公司 | Converter-powered loose winding motor |
| CN104901459B (en) * | 2015-07-06 | 2017-07-07 | 永济新时速电机电器有限责任公司 | The scattered winding electric machine that current transformer is powered |
| CN113131691A (en) * | 2019-12-30 | 2021-07-16 | 新疆金风科技股份有限公司 | Motor forming coil and forming method and forming system thereof |
| CN113131691B (en) * | 2019-12-30 | 2023-04-07 | 新疆金风科技股份有限公司 | Motor forming coil and forming method and forming system thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120404 Termination date: 20160808 |