Winding structure for eliminating transverse magnetic flux leakage
By designing a balanced winding structure and supporting fixation, the transverse leakage flux of the transformer is eliminated, the axial impact force problem caused by asymmetrical arrangement is solved, and the stable operation of the transformer is achieved.
Patent Information
- Application Number
- CN202423011812.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-06
AI Technical Summary
When existing transformers have asymmetrical primary and secondary coil arrangements, they result in transverse leakage magnetic fields, generating axial impact forces that damage structural components.
By designing a structure in which the primary and secondary coil windings are perfectly balanced in height, lateral magnetic leakage is eliminated. The base and iron core are used for support and fixation to ensure the windings are balanced and symmetrical.
It effectively reduces the axial impact force when the transformer is switched on, improves the stability of transformer operation, and avoids structural damage.
Smart Images
Figure CN223539419U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transformer technology, specifically to a winding structure that eliminates lateral leakage flux. Background Technology
[0002] In existing transformers, the primary windings are arranged with the windings at the same height from both ends. However, when the secondary windings are equipped with auxiliary windings, shielding, or the insulation distance is arranged in a way that causes the axial height of the secondary windings to be asymmetrical with that of the primary windings, resulting in a height difference and a transverse leakage magnetic field area, the transformer will eventually generate a large axial impact force during the closing impact, causing damage to the structural components. Utility Model Content
[0003] The purpose of this invention is to provide a winding structure that eliminates transverse leakage magnetic flux, so as to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a winding structure for eliminating transverse leakage magnetic flux, comprising a primary coil winding, an upper end insulation of the primary coil, a lower end insulation of the primary coil, a secondary coil winding, an upper end insulation of the secondary coil, a lower end insulation of the secondary coil, and a secondary auxiliary winding. The upper end insulation and the lower end insulation of the primary coil are respectively located at the upper and lower ends of the primary coil winding, and the upper end insulation and the lower end insulation of the secondary coil are respectively located at the upper and lower ends of the secondary coil winding. The secondary auxiliary winding is located at the lower end of the secondary coil winding and is located above the lower end insulation of the secondary coil.
[0005] Preferably, the primary winding and the secondary winding have the same height.
[0006] Preferably, it also includes a base, the base having an iron core, the bottom outer side of the iron core being disposed on the base, and the primary coil winding and the secondary coil winding being disposed on a support pad.
[0007] Compared with the prior art, the beneficial effects of this utility model are: by setting the primary winding to be completely balanced with the secondary winding in height, this utility model can effectively eliminate the transverse leakage flux of the transformer, effectively reduce the axial impact force when the transformer is closed, so that the transformer is not damaged during operation and the product performance is more stable. Attached Figure Description
[0008] Figure 1 This is a schematic diagram of the structure of this utility model.
[0009] In the diagram: 1. Primary winding; 2. Insulation at the upper end of the primary winding; 3. Insulation at the lower end of the primary winding; 4. Secondary winding; 5. Insulation at the upper end of the secondary winding; 6. Insulation at the lower end of the secondary winding; 7. Secondary auxiliary winding; 8. Base; 9. Iron core; 10. Lower support pad; 11. Upper support pad; 12. Upper clamp; 13. Lower clamp. Detailed Implementation
[0010] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0011] Please see Figure 1 This utility model provides a technical solution: a winding structure for eliminating transverse leakage magnetic flux, including a primary coil winding 1, an upper end insulation 2 for the primary coil, a lower end insulation 3 for the primary coil, a secondary coil winding 4, an upper end insulation 5 for the secondary coil, a lower end insulation 6 for the secondary coil, and a secondary auxiliary winding 7. The upper end insulation 2 and the lower end insulation 3 of the primary coil are respectively located at the upper and lower ends of the primary coil winding 1. The upper end insulation 5 and the lower end insulation 6 of the secondary coil are respectively located at the upper and lower ends of the secondary coil winding 4. The secondary auxiliary winding 7 is located at the lower end of the secondary coil winding 4 and is located above the lower end insulation 6 of the secondary coil.
[0012] In one embodiment of this utility model, the primary winding 1 and the secondary winding 4 are of equal height. This utility model employs a design where the primary winding 1 has an asymmetrical upper and lower end, adjusting it to perfectly balance the height of the primary winding 1 with that of the secondary winding 4. This ensures that the overall height of the secondary winding remains constant regardless of whether the secondary winding 4 is affected by auxiliary windings, shielding, or insulation spacing. The primary winding 1 always maintains a perfectly balanced and symmetrical arrangement with the secondary winding 4, thereby eliminating the large lateral leakage flux caused by the imbalance of ampere-turns between the primary and secondary windings. This effectively reduces the axial impact force during transformer closing, preventing damage during transformer operation and resulting in more stable product performance.
[0013] In one embodiment of the present invention, a base 8 is also included, wherein the base 8 is provided with an iron core 9, and the iron core 9 is supported and fixed by the base 8, the lower clamp 13, and the upper clamp 2; the primary side coil winding 1 and the secondary side coil winding 4 are disposed on the lower support pad 10 and are pressed and fastened by the upper support pad 11.
[0014] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A winding structure for eliminating transverse leakage magnetic flux, characterized in that, The device includes a primary coil winding (1), an upper end insulation (2) of the primary coil, a lower end insulation (3) of the primary coil, a secondary coil winding (4), an upper end insulation (5) of the secondary coil, a lower end insulation (6) of the secondary coil, and a secondary auxiliary winding (7). The upper end insulation (2) and the lower end insulation (3) of the primary coil are respectively located at the upper and lower ends of the primary coil winding (1). The upper end insulation (5) and the lower end insulation (6) of the secondary coil are respectively located at the upper and lower ends of the secondary coil winding (4). The secondary auxiliary winding (7) is located at the lower end of the secondary coil winding (4) and is located above the lower end insulation (6) of the secondary coil.
2. The winding structure for eliminating transverse leakage magnetic flux according to claim 1, characterized in that: The primary winding (1) and the secondary winding (4) are of equal height.
3. The winding structure for eliminating transverse leakage magnetic flux according to claim 1, characterized in that: It also includes a base (8), which is provided with an iron core (9). The bottom outer side of the iron core (9) is provided on a support seat (10), and the primary coil winding (1) and the secondary coil winding (4) are provided on the support seat (10).