Energy-saving amorphous alloy distribution transformer
By adjusting the magnetic flux density of the amorphous iron core and optimizing the structural design, the problem of increased cost caused by the increase in the cross-section of the iron core was solved, and the low loss and low noise performance of the amorphous alloy distribution transformer was achieved, thereby improving the market competitiveness and energy efficiency of the product.
Patent Information
- Application Number
- CN202423242311.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-12-27
AI Technical Summary
In the existing technology, the reduction of the magnetic flux density of the iron core of the amorphous alloy distribution transformer leads to an increase in the cross-section of the amorphous iron core, which increases the amount of amorphous alloy strip and winding conductor used, resulting in a significant increase in cost.
By adjusting the magnetic flux density of the amorphous iron core to 1.2–1.3T, reducing the core cross-sectional area by approximately 10–15%, decreasing the weight of the amorphous iron core strip by 12%, and the winding conductor weight by 4–6%, and by coating the iron core surface with a flexible, heat-resistant, insulating, and sound-absorbing layer, and optimizing the R-angle design as an independent window, the average amount of iron core strip used per unit is reduced by 30kg, and the transition at the iron core R-angle position is smoother, which helps reduce transformer noise and losses. In the application areas of the above-mentioned elastic pads, note that the output language should be applied to specific products. In the application areas of the above-mentioned elastic pads, note that the output language should be applied to specific products. In the patented application areas, note that the output language should be fluent and clear.
This achievement reduces the no-load loss of amorphous alloy dry-type transformers to less than 5% of the national energy efficiency standard, reduces the amount of core strip and winding conductors used, lowers costs by 2-3%, enhances market competitiveness, and reduces noise and losses.
Smart Images
Figure CN223638212U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to transformer technical field especially relates to an energy -conserving amorphous alloy distribution transformer. BACKGROUND
[0002] Amorphous alloy distribution transformer is a kind of transformer using amorphous alloy material as the core.Amorphous alloy is a kind of alloy material formed by super rapid cooling solidification, and its atomic arrangement structure is disordered, i.e.amorphous structure.This material has excellent magnetic properties, such as low iron loss, high magnetic permeability, etc., and is particularly suitable for application in distribution transformer.
[0003] The existing energy efficiency standard in "GB20052-2024 Power Transformer Energy Efficiency Limiting Value and Energy Efficiency Grade" clearly defines the limiting value of the no-load loss of transformer.Compared with electric steel strip dry-type transformer, the no-load loss of amorphous alloy dry-type transformer is reduced by about 60%, and the energy-saving effect is quite obvious.The design and manufacture of first-class energy efficiency amorphous alloy dry-type transformer are difficult due to its ultra-low no-load loss requirement, and the magnetic flux density of the core is generally reduced to 1.05~1.15T to achieve it.
[0004] However, in the above prior art, the magnetic flux density of the core is reduced, the cross section of the amorphous core is increased, resulting in a significant increase in the amount of amorphous alloy strip and winding conductor, and the cost is increased. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing an energy -conserving amorphous alloy distribution transformer, and aims at solving the technical problems that the magnetic flux density of the core in the prior art is reduced, the cross section of the amorphous core is increased, resulting in a significant increase in the amount of amorphous alloy strip and winding conductor, and the cost is increased.
[0006] To achieve the above-mentioned purpose, the utility model adopts an energy -conserving amorphous alloy distribution transformer, which comprises a bottom angle groove steel, a pull plate, an upper clamp, a lower clamp, a positioning plate, an amorphous core, a clamp insulation layer, a low-voltage winding and a high-voltage winding, the amorphous core is arranged on the inner side of the pull plate, the bottom angle groove steel is fixedly connected with the amorphous core and located below the amorphous core, the clamp insulation layer is connected with the amorphous core and located on the outer side of the amorphous core, the positioning plate is connected with the clamp insulation layer and located on the outer side of the clamp insulation layer, the upper clamp is connected with the clamp insulation layer and located on the outer side of the clamp insulation layer, the low-voltage winding is fixedly sleeved on the outside of the amorphous core, and the high-voltage winding is fixedly sleeved on the outside of the low-voltage winding.
[0007] The energy-saving amorphous alloy distribution transformer further comprises a flexible temperature-resistant insulating sound-absorbing layer, and the flexible temperature-resistant insulating sound-absorbing layer is wrapped outside the amorphous core.
[0008] The energy-saving amorphous alloy distribution transformer further comprises an elastic cushion block, and the elastic cushion block is connected with the lower clamping piece and located above the lower clamping piece.
[0009] The energy-saving amorphous alloy distribution transformer further comprises a shock-absorbing pad, and the shock-absorbing pad is arranged between the pull plate and the bottom angle channel steel.
[0010] The energy-saving amorphous alloy distribution transformer further comprises a bottom insulating layer, and the bottom insulating layer is arranged between the pull plate and the amorphous core.
[0011] The energy-saving amorphous alloy distribution transformer of the utility model, the upper clamping piece, the positioning plate, through the clamping piece insulating layer with the amorphous core is connected, the low voltage winding is wrapped outside the amorphous core, the high voltage winding is wrapped outside the low voltage winding, three form a loop, thereby constitute the main part of transformer, through the amorphous core magnetic flux density by 1.05~1.15T adjustment 1.2~1.3T, the core section area reduces about 10%~15%, the amorphous core strip weight reduces about 12%, the winding conductor weight drops 4%~6%, considers the new type amorphous core strip price up 10% influence factor, the transformer comprehensive cost drops 2%~3% than traditional amorphous alloy transformer, improves the market competitiveness of product, in addition the inner window R angle of amorphous core increases from 6.4mm to 35mm, and the average per core strip consumption can reduce 30kg after, and the amorphous strip transition is more gentle at the core R angle position, is favorable for reducing the transformer noise and loss, adopts the above-mentioned mode, the first energy efficiency amorphous alloy dry-type transformer core loss reduces 5% or more than the national energy efficiency standard, solves the problem that the no-load loss of traditional amorphous alloy dry-type transformer is easy to exceed the standard, realizes the no-load loss performance of the transformer can be better than the national energy efficiency standard, reduces the core strip and winding conductor consumption, greatly reduces the cost. BRIEF DESCRIPTION OF DRAWINGS
[0012] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.
[0013] Figure 1 It is the structure schematic diagram of the energy-saving amorphous alloy distribution transformer of the utility model.
[0014] Figure 2 is the structure front view of the energy-saving amorphous alloy distribution transformer.
[0015] Figure 3 is the structure schematic diagram of the amorphous core.
[0016] Figure 4 is the split structure schematic diagram of the amorphous core.
[0017] Figure 5 is the structure schematic diagram of the flexible temperature-resistant insulation sound-absorbing layer arranged on the amorphous core.
[0018] Figure 6 is the structure plan view of the traditional amorphous core.
[0019] Figure 7 is the structure plan view of the amorphous core.
[0020] Figure 8 is the energy-saving amorphous alloy distribution transformer of the utility model. Figure 1 is the A place local structure enlarged view of the utility model.
[0021] 1-upper clamp, 2-low voltage winding, 3-clamp insulation layer, 4-positioning plate, 5-amorphous core, 6-high voltage winding, 7-elastic pad, 8-lower clamp, 9-bottom insulation layer, 10-damping pad, 11-flexible temperature-resistant insulation sound-absorbing layer, 12-pull plate, 13-bottom angle channel steel. DETAILED DESCRIPTION
[0022] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, and are intended to explain the utility model, and cannot be understood as the limitation of the utility model.
[0023] Please refer to Figures 1-8The utility model provides a kind of energy-saving amorphous alloy distribution transformer, including pull plate 12, upper clamp piece 1, lower clamp piece 8, locating plate 4, amorphous core 5, clamp piece insulating layer 3, low-voltage winding 2 and high-voltage winding 6, the amorphous core 5 is arranged in the inside of the pull plate 12, the bottom angle channel steel 13 is fixedly connected with the amorphous core 5, and it is located below the amorphous core 5, the clamp piece insulating layer 3 is connected with the amorphous core 5, and it is located outside the amorphous core 5, the locating plate 4 is connected with the clamp piece insulating layer 3, and it is located outside the clamp piece insulating layer 3, the upper clamp piece 1 is connected with the clamp piece insulating layer 3, and it is located outside the clamp piece insulating layer 3, the low-voltage winding 2 is fixedly sleeved in the outside of the amorphous core 5, and the high-voltage winding 6 is fixedly sleeved in the outside of the low-voltage winding 2.
[0024] In the embodiment, the upper clamp piece 1 and the locating plate 4 are connected with the amorphous core 5 through the clamp piece insulating layer 3; the low-voltage winding 2 is sleeved outside the amorphous core 5, and the high-voltage winding 6 is sleeved outside the low-voltage winding 2, and the three form a loop, thereby constituting the main part of the transformer; by adjusting the magnetic flux density of the amorphous core 5 from 1.05-1.15T to 1.2-1.3T, the cross-sectional area of the core is reduced by about 10%-15%, the weight of the amorphous core 5 ribbon is reduced by about 12%, and the weight of the winding conductor is reduced by 4%-6%. Considering the 10% price increase of the new amorphous core 5 ribbon, the comprehensive cost of the transformer is reduced by 2%-3% compared with the traditional amorphous alloy transformer, which improves the market competitiveness of the product. In addition, after the inner window R angle of the amorphous core 5 is increased from 6.4mm to 35mm, the average amount of core ribbon per unit can be reduced by 30kg, and the transition of amorphous ribbon at the R angle position of the core is more smooth, which is beneficial to reduce the noise and loss of the transformer. By using the above-mentioned mode, the core loss of the first energy efficiency amorphous alloy dry-type transformer is reduced by more than 5% compared with the national energy efficiency standard, which solves the problem that the no-load loss of the traditional amorphous alloy dry-type transformer is easy to exceed the standard, and realizes that the no-load loss performance of the transformer is better than the national energy efficiency standard, reduces the amount of core ribbon and winding conductor, and greatly reduces the cost.
[0025] Further, the energy-saving amorphous alloy distribution transformer further comprises a flexible temperature-resistant insulating sound-absorbing layer 11, which is wrapped outside the amorphous core 5.
[0026] In the embodiment, by coating the surface of the amorphous core 5 with a flexible temperature-resistant insulating sound-absorbing material, the noise of the transformer can be effectively reduced, and the overall noise of the transformer is guaranteed to be lower than the national standard by more than 5dB.
[0027] Further, the energy-saving amorphous alloy distribution transformer further comprises an elastic cushion 7 connected with the lower clamp 8 and located above the lower clamp 8; the energy-saving amorphous alloy distribution transformer further comprises a shock-absorbing pad 10 arranged between the pull plate 12 and the bottom corner channel steel; and the energy-saving amorphous alloy distribution transformer further comprises a bottom insulating layer 9 arranged between the pull plate 12 and the amorphous iron core 5.
[0028] In the embodiment, the elastic cushion 7 is placed on the lower clamp 8 to support the high-voltage winding 6 and the low-voltage winding 2, and the bottom insulating layer 9 and the shock-absorbing pad 10 are placed in the middle of the bending of the bottom of the pull plate 12 and the amorphous iron core 5, so that the elastic support can stably support the amorphous iron core 5.
[0029] The above only discloses a preferred embodiment of the utility model, and of course cannot limit the scope of the utility model, and those skilled in the art can understand that all or part of the above-mentioned embodiments can be implemented, and equivalent changes made according to the utility model claims still belong to the scope of the utility model.
Claims
1. An energy-saving amorphous alloy distribution transformer, characterized in that, comprising a bottom angle channel steel, a pull plate, an upper clamp, a lower clamp, a positioning plate, an amorphous core, a clamp insulation layer, a low-voltage winding and a high-voltage winding, the amorphous core is arranged on the inner side of the pull plate, the bottom angle channel steel is fixedly connected with the amorphous core and located below the amorphous core, the clamp insulation layer is connected with the amorphous core and located on the outer side of the amorphous core, the positioning plate is connected with the clamp insulation layer and located on the outer side of the clamp insulation layer, the upper clamp is connected with the clamp insulation layer and located on the outer side of the clamp insulation layer, the low-voltage winding is fixedly sleeved on the outside of the amorphous core, and the high-voltage winding is fixedly sleeved on the outside of the low-voltage winding.
2. The energy-saving amorphous alloy distribution transformer according to claim 1, characterized in that, the energy-saving amorphous alloy distribution transformer further comprises a flexible temperature-resistant insulation sound-absorbing layer, and the flexible temperature-resistant insulation sound-absorbing layer is wrapped on the outside of the amorphous core.
3. The energy-saving amorphous alloy distribution transformer according to claim 2, characterized in that, the energy-saving amorphous alloy distribution transformer further comprises an elastic pad, and the elastic pad is connected with the lower clamp and located above the lower clamp.
4. The energy-saving amorphous alloy distribution transformer according to claim 3, characterized in that, the energy-saving amorphous alloy distribution transformer further comprises a shock-absorbing pad, and the shock-absorbing pad is arranged between the pull plate and the bottom angle channel steel.
5. The energy-saving amorphous alloy distribution transformer according to claim 4, characterized in that, the energy-saving amorphous alloy distribution transformer further comprises a bottom insulation layer, and the bottom insulation layer is arranged between the pull plate and the amorphous core.