Add yoke type solid/plane reeling iron core
A technology of three-dimensional wound iron core and wound iron core, which is applied in the field of transformer manufacturing, can solve the problems of easily damaged transformers, the temperature rise of the iron yoke, and the difficulty in selecting the magnetic flux density, so as to improve the ability to resist overvoltage and improve reliability. Effect of performance, performance improvement
Active Publication Date: 2010-11-03
NEWONDER SPECIAL ELECTRIC
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In this way, once the input voltage of the transformer is too high for some reason, the magnetic density of the iron yoke will be very close to the magnetic saturation point, causing the temperature of the iron yoke to rise sharply, which will easily damage the transformer.
Therefore, it is difficult to choose the best magnetic flux density when designing a three-dimensional or planar wound core, that is, the three-dimensional or planar wound core cannot obtain the best performance and the lowest manufacturing cost
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0025] One of the present inventions is an increased yoke type three-dimensional wound iron core.
[0026] The specific content of the present invention will be clarified below by taking the three-phase three-column polygonal cross-section increased-yoke three-dimensional wound iron core as an example.
[0027] Such as figure 1 As shown, the iron core is composed of three single frames 1 with the same shape. Each single frame 1 consists of one or more (such as Figure 5 shown) silicon steel strips of different shapes and multiple silicon steel sheets 2 (such as Figure 6 shown) coiled. When the silicon steel strip is wound, such as figure 2 As shown, a certain number of boosters 2 are placed concentratedly or dispersedly at the position of the yoke of the single frame 1, and the cross section 111 (as shown in FIG. 4 ) of the wound single frame yoke 11 is larger than the cross section 121 of the stem 12 (as image 3 shown). The cross-section 121 of the stem 12 is close t...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a yoke solid / plane coil iron core. Wherein, it is formed by three assembled same single frames; each frame is made from one or several coiled silicon steel bands at different shapes; and the invention is characterized in that: at least one position of the yoke of single frame is arranged with several silicon steel bands when coiling, to form the section larger than the core cylinder. Therefore, the invention has the advantages that: the idle consumption of transformer with said solid coil iron core is 8% less than present transformer, with improved 9% anti-over-voltage ability. And the invention has low cost and balance three phases.
Description
technical field [0001] The invention relates to the transformer manufacturing technology, in particular to the increased yoke type three-dimensional / planar wound iron core. Background technique [0002] At present, most of the iron cores used in electrical appliances such as transformers, transformers, and voltage regulators are made of silicon steel sheets or strips. There are two main manufacturing methods: lamination and winding. The laminated iron core is made of silicon steel sheets stacked in a certain form. Due to the air gap in the magnetic circuit of this kind of iron core, the silicon steel sheets are not close enough, and the high magnetic permeability direction of the material in some places is inconsistent with the direction of the magnetic circuit, so the performance of the iron core is poor, and the transformer made of it is no-load. High loss and high noise. The coiled iron core is formed by continuous coiling of a silicon steel strip of a certain shape. ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H01F27/24H01F3/00
Inventor 张明德
Owner NEWONDER SPECIAL ELECTRIC