Side yoke side-arranged multi-magnetic-column transformer iron core
By combining the side-yoke multi-magnetic-pillar transformer core with a pressure tensioner, the stability problem of traditional transformer cores is solved, achieving higher structural stability and optimized electrical performance, and adapting to space constraints.
Patent Information
- Application Number
- CN202520379898.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-06
AI Technical Summary
Traditional three-phase three-limb or single-phase three-limb transformer cores have large leakage flux and insufficient structural stability. They are prone to displacement or deformation of the magnetic columns due to vibration or external forces, which affects electrical performance.
The structure employs a side-mounted multi-magnetic-pillar structure, combined with a pressure tensioner to form a stable yoke frame. The tension force is adjusted through the combination of the upper clamp, lower clamp, and pressure tensioner to enhance structural stability.
It improves the reliability and overall structural stability of the transformer, reduces leakage flux loss, optimizes the structure and reduces costs, and adapts to space constraints.
Smart Images
Figure CN223871314U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of transformer core technology, and in particular relates to a transformer core with a side-yoke multi-magnetic column. Background Technology
[0002] In existing transformer core technology, traditional three-phase three-column or single-phase three-column structures have problems such as large leakage flux and insufficient structural stability. Due to vertical space constraints and vibration during transformer operation, the magnetic columns are prone to displacement or deformation, which in turn increases leakage flux and eddy current losses, affecting the electrical performance of the transformer. Summary of the Invention
[0003] Purpose of the invention: In order to overcome the shortcomings of the existing technology, this utility model provides a transformer core with a side yoke and multiple magnetic columns. By setting a side yoke and a pressure tensioner, a stable yoke frame is formed to prevent the magnetic columns from being displaced or deformed due to vibration or external force, thereby improving the reliability of the transformer.
[0004] Technical solution: To achieve the above objectives, the present invention provides a multi-magnetic-pillar transformer core with a side yoke, comprising magnetic pillars and an upper yoke and a lower yoke connected to both ends of the magnetic pillars. The upper yoke is clamped and fixed by an upper clamp, and the lower yoke is clamped and fixed by a lower clamp.
[0005] It also includes a pair of side yokes, which are symmetrically connected at both ends of the upper yoke and the lower yoke to form a yoke iron frame surrounding multiple magnetic pillars. A pressure tensioner is connected between the upper clamp and the lower clamp to apply tension to the yoke iron frame.
[0006] Furthermore, the upper clamp is connected to an upper fastener that penetrates the upper yoke, and the lower clamp is connected to a lower fastener that penetrates the lower yoke.
[0007] Furthermore, the pressure tensioner includes a telescopic rod portion, the upper end of which is connected to an upper clamping member via a hinged upper connecting plate, and the lower end of which is connected to a lower clamping member via a hinged lower connecting plate; the telescopic rod portion adjusts the tension force applied to the yoke frame by changing its own length.
[0008] Furthermore, the pressure tensioner includes a pressure sensor spring; the telescopic rod is composed of a threaded screw and a screw cylinder, the bottom of the screw cylinder is a base plate, and the two ends of the pressure sensor spring located inside the screw cylinder are respectively connected to the screw and the base plate; a rotating shaft is provided at the bottom of the base plate, and a bearing seat is hinged on the lower connecting plate, and the rotating shaft cooperates with the bearing seat.
[0009] Furthermore, the number of pressure tensioners is one pair, and the pair of pressure tensioners are symmetrically arranged on both sides of the yoke frame.
[0010] Furthermore, the lower clamp is provided with a base foot, and the upper clamp is provided with a top beam.
[0011] Furthermore, the upper clamp is provided with lifting lugs.
[0012] Beneficial effects: By setting a side yoke and a pressure tensioner, this utility model forms a stable yoke iron frame, which can effectively enhance the overall structural stability of the iron core, prevent the magnetic column from being displaced or deformed due to vibration or external force during operation, and improve the reliability of the transformer. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the pressure tensioner. Detailed Implementation
[0015] The present invention will be further described below with reference to the accompanying drawings.
[0016] like Figure 1 As shown, a multi-magnetic-pillar transformer core with side yokes includes magnetic pillars 1 and upper yokes 2 and lower yokes 3 connected to both ends of the magnetic pillars 1. The upper yoke 2 is clamped and fixed by an upper clamp 4, and the lower yoke 3 is clamped and fixed by a lower clamp 5. It also includes a pair of side yokes 19, which are symmetrically connected to the ends of the upper yoke 2 and the lower yoke 3, forming a yoke frame surrounding the multiple magnetic pillars 1. A pressure tensioner 6 is connected between the upper clamp 4 and the lower clamp 5 to apply tension to the yoke frame. This invention, by setting the side yokes 19 and the pressure tensioner 6, forms a stable yoke frame, which can effectively enhance the overall structural stability of the core, prevent the magnetic pillars from displacing or deforming due to vibration or external forces during operation, and improve the reliability of the transformer. At the same time, the side yokes not only enhance the overall frame strength of the core but also reduce the height of the core, allowing for lateral space expansion when vertical space is limited, meeting customer requirements for space constraints. The flexible adjustment function of the pressure tensioner 6 ensures the tightness and balance of the yoke frame under different operating conditions.
[0017] In addition, the side-yoke transformer core can significantly reduce leakage flux loss, increase zero-sequence excitation impedance, optimize structure, reduce cost, and enhance overall stability.
[0018] The upper clamp 4 is connected to an upper fastener 17 that penetrates the upper yoke 2, and the lower clamp 5 is connected to a lower fastener 18 that penetrates the lower yoke 3. The upper fastener 17 and the lower fastener 18 further enhance the fixing effect of the upper yoke 2 and the lower yoke 3, making the connection of the various components of the iron core more secure, reducing the risk of loosening during operation, and facilitating installation and disassembly.
[0019] like Figure 1 and Figure 2 As shown, the pressure tensioner 6 includes a telescopic rod 7. The upper end of the telescopic rod 7 is connected to the upper clamping member 4 via a hinged upper connecting plate 8, and the lower end of the telescopic rod 7 is connected to the lower clamping member 5 via a hinged lower connecting plate 9. The telescopic rod 7 adjusts the tension applied to the yoke frame by changing its own length. The design of the telescopic rod 7 and the hinged structure allows the pressure tensioner 6 to flexibly adjust the tension, adjust the tightness of the yoke frame according to actual needs, adapt to different working conditions, and improve the adaptability of the transformer. More specifically, the pressure tensioner 6 includes a pressure sensor spring 10; the telescopic rod 7 is composed of a threaded screw 71 and a screw cylinder 72, the bottom of the screw cylinder 72 is a base plate 11, and the two ends of the pressure sensor spring 10 located inside the screw cylinder 72 are respectively connected to the screw 71 and the base plate 11; a rotating shaft 12 is provided at the bottom of the base plate 11, and a bearing seat 13 is hinged on the lower connecting plate 9, with the rotating shaft 12 cooperating with the bearing seat 13. The addition of the pressure sensor spring 10 enables real-time monitoring of tension changes, ensuring the uniformity and stability of the tension. The threaded connection structure makes the length adjustment of the telescopic rod 7 more precise and convenient, further improving the stability and reliability of the iron core.
[0020] It is worth noting that the pressure tensioners 6 are in pairs, and the pair of pressure tensioners 6 are symmetrically arranged on both sides of the yoke frame to ensure that the force on both sides of the yoke frame is uniform, avoiding structural deformation or damage caused by uneven force on one side, and further enhancing the overall balance and stability of the iron core.
[0021] The lower clamp 5 is provided with a base foot 14, and the upper clamp 4 is provided with a top beam 15. The base foot 14 and the top beam 15 provide additional support and fixing points for the iron core.
[0022] The upper clamp 4 is provided with lifting lugs 16, which facilitates the hoisting and transportation of the iron core and improves the installation efficiency of the iron core.
[0023] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A multi-magnetic-pillar transformer core with side yoke, comprising a magnetic column (1) and an upper yoke (2) and a lower yoke (3) connected to both ends of the magnetic column (1), wherein the upper yoke (2) is clamped and fixed by an upper clamp (4) and the lower yoke (3) is clamped and fixed by a lower clamp (5); Its features are: It also includes a pair of side yokes (19), which are symmetrically connected at both ends of the upper yoke (2) and the lower yoke (3) to form a yoke iron frame surrounding multiple magnetic pillars (1). A pressure tensioner (6) that applies tension to the yoke iron frame is connected between the upper clamp (4) and the lower clamp (5).
2. The side-yoke multi-magnetic-column transformer core according to claim 1, characterized in that: The upper clamp (4) is connected to an upper fastener (17) that passes through the upper yoke (2), and the lower clamp (5) is connected to a lower fastener (18) that passes through the lower yoke (3).
3. The side-yoke multi-magnetic-pillar transformer core according to claim 2, characterized in that: The pressure tensioner (6) includes a telescopic rod (7), the upper end of which is connected to the upper clamp (4) via a hinged upper connecting plate (8), and the lower end of which is connected to the lower clamp (5) via a hinged lower connecting plate (9); the telescopic rod (7) adjusts the tension applied to the yoke frame by changing its own length.
4. The side-yoke multi-magnetic-pillar transformer core according to claim 3, characterized in that: The pressure tensioner (6) includes a pressure sensor spring (10); the telescopic rod (7) is composed of a threaded screw (71) and a screw cylinder (72), the bottom of the screw cylinder (72) is a base plate (11), and the two ends of the pressure sensor spring (10) located in the screw cylinder (72) are respectively connected to the screw (71) and the base plate (11); a rotating shaft (12) is provided at the bottom of the base plate (11), and a bearing seat (13) is hinged on the lower connecting plate (9), and the rotating shaft (12) cooperates with the bearing seat (13).
5. The side-yoke multi-magnetic-column transformer core according to claim 4, characterized in that: The number of pressure tensioners (6) is one pair, and the pair of pressure tensioners (6) are symmetrically arranged on both sides of the yoke frame.
6. A multi-column transformer core with side yoke as described in any one of claims 1 to 5, characterized in that: The lower clamp (5) is provided with a base foot (14), and the upper clamp (4) is provided with a top beam (15).
7. A multi-magnetic-pillar transformer core with side yoke as described in any one of claims 1 to 5, characterized in that: The upper clamp (4) is provided with a lifting lug (16).