Weftless tape structure coil for transformer
Through the design of the weft-free structure coil, combined with the sliding notch, slider body and adhesive positioning technology, the damage problem of the transformer coil during short circuit failure is solved, the mechanical strength and insulation protection is enhanced, the winding and idleness are avoided, and the The safety performance and usage effect of the transformer.
Patent Information
- Application Number
- CN202420938130.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-30
AI Technical Summary
In the event of a short circuit failure, existing transformer coils are easily affected by heat and mechanical stress caused by arc and magnetic field impact, resulting in damage to the coil and unstable winding structure, which easily leads to idling and affects the use effect.
Design a weftless structure coil. Through the cooperation of the coil assembly and the winding assembly, the combination of sliding notches, slider bodies, long rods, threaded holes and weftless strips ensures stable winding coverage of weftless strips. The coil enhances mechanical strength and prevents insulation aging, and uses viscose positioning to avoid irrigation.
It effectively improves the mechanical strength and insulation protection of the coil, reduces damage caused by vibration or transportation, enhances the safety performance of the transformer, and ensures winding stability, avoids winding idle phenomenon, and improves the use effect.
Smart Images
Figure CN222213910U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coils, in particular to a coil with no weft band structure for a transformer. Background Art
[0002] In the power system, short circuit fault is a common fault type, which may cause dangers such as high current and high temperature rise, resulting in equipment damage or even fire. In order to improve the stability and safety of the power system, it is necessary to develop equipment with stronger short-circuit capability. In the prior art, the transformer body is wrapped with white cloth after the coil is wound. In this way, when the transformer suddenly short-circuit fault occurs, the arc and magnetic field shock generated by the short circuit will generate additional heat and mechanical action on the coil, thereby aggravating the damage to the coil and even breaking the wire, causing local overheating and insulation breakdown inside the coil, and even damaging the coil. The vibration and mechanical stress inside the transformer increase, which may cause damage to the mechanical structure of the transformer. Utility Model Content
[0003] Therefore, the purpose of the utility model is to provide a coil with a weftless belt structure for a transformer. Through the mutual cooperation of the coil assembly and the winding assembly, the weftless belt piece is wrapped around and covers the coil when in use, which effectively fixes and reinforces the transformer coil, improves the mechanical strength of the coil, prevents the coil from loosening or displacement, reduces damage caused by vibration or transportation, effectively protects the insulation layer of the coil from the influence of the external environment, reduces the risk of insulation aging and breakdown, improves the safety performance of the transformer, and during winding, limits one end of the weftless belt piece to ensure the stability of the winding fit, avoids the winding idling phenomenon during winding, and causes the problem that the weftless belt piece and the coil are not tightly fitted, affecting the use effect.
[0004] In order to solve the above technical problems, according to one aspect of the utility model, the utility model provides the following technical solution: a coil with no weft band structure for a transformer, comprising:
[0005] A coil assembly, the coil assembly comprising a coil body and a coil outer frame arranged outside the coil body;
[0006] A winding assembly, the winding assembly includes a slide groove opening on the surface of the outer frame of the coil, a slider body inserted into the slide groove opening, a long round rod fixed to the top of the slider body, an L-shaped plate fixed to the top of the slider body, a threaded hole opening on the surface of the L-shaped plate and a non-weft belt piece wound around the outside of the coil body.
[0007] As a preferred solution of the transformer coil without weft band structure described in the utility model, the slider body slides along the sliding groove, and a threaded rod penetrates the threaded hole;
[0008] The end of the threaded rod abuts against the inner side of the coil outer frame.
[0009] As a preferred solution of the transformer coil with a non-weft belt structure described in the utility model, the end of the non-weft belt piece is surrounded by adhesive to form a circle, and the long round rod passes through the circle formed by the folding of the non-weft belt piece.
[0010] As a preferred solution of the non-weft belt structure coil for transformer described in the utility model, the non-weft belt piece is wound around the coil body in a circle, and the non-weft belt piece covers the coil body.
[0011] As a preferred solution of the transformer non-weft belt structure coil described in the utility model, it also includes applicable components, which include threaded long holes opened at both ends of the slider body, a spare slider arranged on the side of the slider body and a threaded long rod fixed on the side end of the spare slider.
[0012] As a preferred solution of the transformer coil without weft band structure described in the utility model, wherein the threaded long rod and the threaded long hole are connected to each other;
[0013] Wherein, the spare slider and the long threaded rod are symmetrically arranged at the midline position of the slider body.
[0014] Compared with the prior art, the advantages of the utility model are:
[0015] 1. The utility model achieves the goal that when in use, the weftless belt piece is wrapped around and covers the coil through the mutual cooperation of the coil assembly and the winding assembly, thereby effectively fixing and reinforcing the transformer coil, improving the mechanical strength of the coil, preventing the coil from loosening or displacement, reducing damage caused by vibration or transportation, effectively protecting the insulation layer of the coil from the influence of the external environment, reducing the risk of insulation aging and breakdown, and improving the safety performance of the transformer. During winding, one end of the weftless belt piece is limited to ensure the stability of the winding fit, avoiding the winding idling phenomenon during winding, resulting in the problem that the weftless belt piece and the coil are not tightly fitted, affecting the use effect.
[0016] Second, based on the first beneficial effect, by setting up applicable components, the slider body can be expanded as a whole, so as to be suitable for use with slide grooves of different widths, thereby improving applicability.
[0017] During actual use, the user pushes the slider body laterally, and the slider body slides horizontally in the sliding groove. When the round long rod moves to a position close to the coil body, the user uses a threaded rod to penetrate the threaded hole to make the end of the threaded rod abut against the bottom surface of the outer frame of the coil for positioning. At this time, take the non-weft belt piece and fit it with the round long rod, and position it with adhesive. In this way, the non-weft belt piece can be directly wrapped around the surface of the coil body. In this way, in the early stage of winding, the round long rod will position the non-weft belt piece to avoid the problem of loose fitting of the non-weft belt piece due to idling of winding. After winding, the non-weft belt piece will completely cover the coil body for protection. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:
[0019] Figure 1 It is a structural diagram of the utility model;
[0020] Figure 2 This is an enlarged view of point A of the utility model;
[0021] Figure 3 This is a winding structure diagram of the non-weft belt piece and the round long rod of the utility model;
[0022] Figure 4 It is a structural diagram of the applicable components of the utility model.
[0023] In the figure: 11, coil body; 12, coil outer frame; 21, slide groove; 22, slider body; 23, round long rod; 24, L-shaped plate; 25, threaded hole; 26, non-weft belt piece; 31, threaded long hole; 32, spare slider; 33, threaded long rod. DETAILED DESCRIPTION
[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.
[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.
[0026] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general scale, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.
[0027] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.
[0028] The utility model provides a coil with a non-weft belt structure for a transformer. By cooperating with the provided coil assembly and the winding assembly, the non-weft belt piece is wound around and covers the coil when in use, so as to effectively fix and reinforce the transformer coil, improve the mechanical strength of the coil, prevent the coil from loosening or displacement, reduce damage caused by vibration or transportation, effectively protect the insulation layer of the coil from being affected by the external environment, reduce the risk of insulation aging and breakdown, and improve the safety performance of the transformer. Moreover, during winding, one end of the non-weft belt piece is limited to ensure the stability of the winding fit, avoid the winding idling phenomenon during winding, and cause the non-weft belt piece to be loosely fitted to the coil, thereby affecting the use effect.
[0029] Example 1
[0030] Figure 1 , Figure 2 , Figure 3 The utility model is a schematic diagram of the overall structure of a transformer coil without weft band structure. Figure 1 , Figure 2 , Figure 3 The main structure of this embodiment includes: a coil assembly and a winding assembly.
[0031] The coil assembly is used in conjunction with the winding assembly. Specifically, the coil assembly includes a coil body 11 and a coil outer frame 12 disposed outside the coil body 11.
[0032] During specific use, the winding assembly is installed and used based on the coil outer frame 12 .
[0033] The winding assembly is used for winding positioning and protection. Specifically, the winding assembly includes a slide groove 21 provided on the surface of the coil outer frame 12, a slider body 22 inserted into the slide groove 21, a round long rod 23 fixed at the top of the slider body 22, an L-shaped plate 24 fixed at the top of the slider body 22, a threaded hole 25 provided on the surface of the L-shaped plate 24, and a non-weft belt piece 26 wound around the outside of the coil body 11;
[0034] During specific use, the user pushes the slider body 22 laterally, and the slider body 22 slides horizontally in the slide groove 21. When the round long rod 23 moves to a position close to the coil body 11, the user uses a threaded rod to penetrate the threaded hole 25, so that the end of the threaded rod is abutted against the bottom surface of the coil outer frame 12 for positioning. At this time, the non-weft belt piece 26 is taken to fit with the round long rod 23, and positioned by adhesive bonding. In this way, the non-weft belt piece 26 can be directly wrapped around the surface of the coil body 11. In this way, in the early stage of winding, the round long rod 23 positions the non-weft belt piece 26 to avoid the problem of loose fitting of the non-weft belt piece 26 due to idling of winding. After winding, the non-weft belt piece 26 completely covers the coil body 11 for protection.
[0035] Example 2
[0036] Please refer to Figure 4 By setting the applicable components, the slider body 22 can be expanded as a whole, so as to be suitable for the slide slots 21 of different widths, thereby improving the applicability;
[0037] Specifically, it also includes applicable components, which include threaded long holes 31 opened at both ends of the slider body 22, a spare slider 32 arranged on the side of the slider body 22, and a threaded long rod 33 fixed to the side end of the spare slider 32;
[0038] During specific use, the threaded long rod 33 is connected to the threaded long hole 31 ; in this way, the spare slider 32 can be assembled, so that the spare sliders 32 at both ends expand the slider body 22 and are suitable for slide grooves 21 of different widths.
[0039] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A transformer coil with no weft band structure, characterized in that: include: A coil assembly, the coil assembly comprising a coil body (11) and a coil outer frame (12) arranged outside the coil body (11); A winding assembly, the winding assembly comprising a slide groove (21) provided on the surface of the coil outer frame (12), a slider body (22) inserted into the slide groove (21), a long round rod (23) fixed to the top of the slider body (22), an L-shaped plate (24) fixed to the top of the slider body (22), a threaded hole (25) provided on the surface of the L-shaped plate (24), and a non-weft belt piece (26) wound around the outside of the coil body (11).
2. The transformer coil with no weft band structure according to claim 1, characterized in that: The slider body (22) slides along the slide groove (21), and a threaded rod penetrates the threaded hole (25); The end of the threaded rod abuts against the inner side of the coil outer frame (12).
3. The transformer coil with no weft band structure according to claim 2, characterized in that: The end of the non-weft belt piece (26) is surrounded by adhesive to form a circle, and the round long rod (23) passes through the circle formed by folding the non-weft belt piece (26).
4. The transformer coil with no weft band structure according to claim 3, characterized in that: The non-weft tape piece (26) is wound in a circle around the coil body (11), and the non-weft tape piece (26) covers the coil body (11).
5. The transformer coil with no weft band structure according to claim 4, characterized in that: It also includes an applicable component, which includes threaded long holes (31) opened at both ends of the slider body (22), a spare slider (32) arranged on the side of the slider body (22), and a threaded long rod (33) fixed to the side end of the spare slider (32).
6. The transformer coil with no weft band structure according to claim 5, characterized in that: The threaded long rod (33) and the threaded long hole (31) are connected to each other; The spare slider (32) and the threaded long rod (33) are symmetrically arranged at the midline position of the slider body (22).