CN201229850Y - Winding rack with improved construction - Google Patents
Winding rack with improved construction Download PDFInfo
- Publication number
- CN201229850Y CN201229850Y CNU2008200510305U CN200820051030U CN201229850Y CN 201229850 Y CN201229850 Y CN 201229850Y CN U2008200510305 U CNU2008200510305 U CN U2008200510305U CN 200820051030 U CN200820051030 U CN 200820051030U CN 201229850 Y CN201229850 Y CN 201229850Y
- Authority
- CN
- China
- Prior art keywords
- hole
- drum stand
- magnetic core
- gradual change
- main body
- 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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Abstract
The utility model relates to the technical field of transformer accessories, in particular to an improved bobbin bracket which comprises a main body; the main body is provided with a central cylinder hole for a magnetic core to go through; the central cylinder hole consists of a transition hole section and a straight hole section, wherein, the inner diameter of the transition hole is gradually reduced from an inlet towards the inside; the outer diameter of the main body at the transition hole section is reduced as the inner diameter of the transition hole; in the bobbin bracket, the distance between the magnetic core in a high-voltage area and a coil is increased by changing the straight hole design of the traditional central cylinder hole and dividing the central cylinder hole of the bobbin bracket into the tradition hole section and the straight hole section; meanwhile, the bobbin bracket meets the insulation requirements for the high-voltage area and a low-voltage area of the main body, thereby ensuring the stable work of a transformer.
Description
Technical field:
The utility model relates to transformer accessory technical field, refers in particular to a kind of structure improved drum stand that has.
Background technology:
In transformer, the drum stand parts that are absolutely necessary, drum stand is provided with the wire casing that is used for winding around, drum stand offers the center pillar hole of passing for magnetic core, drum stand is divided into higher-pressure region and low-pressure area, at present, and in small-sized transformer, the volume of drum stand is little, coil is little to the distance of magnetic core, and the insulation of coil and magnetic core is crucial, in general, coil is more little to the distance of magnetic core, and insulation effect is poor more.At present, the center pillar hole of drum stand is generally the straight hole of pore size unanimity, so, high-tension coil and low-voltage coil are identical to the distance of magnetic core, if guaranteed the insulation effect of low-pressure area, so just can't guarantee the insulation effect of higher-pressure region, if guarantee the insulation effect of higher-pressure region and low-pressure area simultaneously, just the distance of magnetic core in the higher-pressure region and coil need be widened, still, the structure of present drum stand is irrealizable.
The utility model content:
The purpose of this utility model is exactly to provide a kind of structure improved drum stand that has at the deficiency of prior art existence.
To achieve these goals, the technical solution adopted in the utility model is: have structure improved drum stand, comprise the drum stand body, the drum stand body offers the center pillar hole of passing for magnetic core, the center pillar hole is made of for two sections gradual change hole and straight hole, wherein, the internal diameter in gradual change hole is diminished inwards gradually by inlet, and the external diameter that is positioned at the drum stand body at gradual change hole place reduces with the internal diameter in gradual change hole and reduces.
Described drum stand body is provided with at least two winding slots.
The beneficial effects of the utility model are: because the center pillar hole of drum stand body is two sections of branches, wherein the gradual change hole is positioned at the higher-pressure region, straight hole is positioned at low-pressure area, after magnetic core inserts the center pillar hole, the magnetic core that is positioned at the gradual change hole to the distance of drum stand body surface greater than the magnetic core of straight hole distance to the drum stand body surface, when the insulating requirements of magnetic core that satisfies low-pressure area and coil, also can satisfy simultaneously the insulating requirements of the magnetic core and the coil of higher-pressure region, so, the utility model is by changing the straight hole design in traditional center pillar hole, the center pillar hole of drum stand is divided into two sections of gradual change hole and straight holes, widened the distance of higher-pressure region magnetic core and coil, satisfy the insulating requirements of drum stand body higher-pressure region and low-pressure area simultaneously, guarantee the steady operation of transformer.
Description of drawings:
Fig. 1 is a perspective view of the present utility model;
Fig. 2 is a vertical view of the present utility model;
Fig. 3 is the cutaway view of the A-A of Fig. 2.
Embodiment:
See shown in Fig. 1,2,3, the utility model comprises drum stand body 1, drum stand body 1 offers the center pillar hole of passing for magnetic core 2, center pillar hole 2 is made of for two sections gradual change hole 2a and straight hole 2b, wherein, the internal diameter of gradual change hole 2a is diminished inwards gradually by inlet, and the external diameter that is positioned at the drum stand body 1 at 2a place, gradual change hole reduces with the internal diameter in gradual change hole and reduces, and described drum stand body 1 is provided with at least two winding slots 3.Wherein gradual change hole 2a is positioned at the higher-pressure region, straight hole 2b is positioned at low-pressure area, after magnetic core inserts center pillar hole 2, the magnetic core that is positioned at gradual change hole 2a to the distance on drum stand body 1 surface greater than the magnetic core of straight hole 2b distance to drum stand body 1 surface, when the insulating requirements of magnetic core that satisfies low-pressure area and coil, also can satisfy simultaneously the insulating requirements of the magnetic core and the coil of higher-pressure region.
Claims (2)
1, has structure improved drum stand, comprise the drum stand body, the drum stand body offers the center pillar hole of passing for magnetic core, it is characterized in that: the center pillar hole is made of for two sections gradual change hole and straight hole, wherein, the internal diameter in gradual change hole is diminished inwards gradually by inlet, and the external diameter that is positioned at the drum stand body at gradual change hole place reduces with the internal diameter in gradual change hole and reduces.
2, according to claim 1 have a structure improved drum stand, and it is characterized in that: described drum stand body is provided with at least two winding slots.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200510305U CN201229850Y (en) | 2008-07-22 | 2008-07-22 | Winding rack with improved construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200510305U CN201229850Y (en) | 2008-07-22 | 2008-07-22 | Winding rack with improved construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201229850Y true CN201229850Y (en) | 2009-04-29 |
Family
ID=40634792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200510305U Expired - Fee Related CN201229850Y (en) | 2008-07-22 | 2008-07-22 | Winding rack with improved construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201229850Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107925294A (en) * | 2016-03-02 | 2018-04-17 | 株式会社日立产机系统 | Axial-gap rotary electric machine and rotary electric machine bobbin winder bracket |
-
2008
- 2008-07-22 CN CNU2008200510305U patent/CN201229850Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107925294A (en) * | 2016-03-02 | 2018-04-17 | 株式会社日立产机系统 | Axial-gap rotary electric machine and rotary electric machine bobbin winder bracket |
| US10848029B2 (en) | 2016-03-02 | 2020-11-24 | Hitachi Industrial Equipment Systems Co., Ltd. | Axial gap type rotating electric machine and rotating electric machine stator bobbin |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090429 Termination date: 20120722 |