Coil supporting system, transformer and smelting cabinet

Abstract

The utility model discloses a coil supporting system, a transformer and a smelting cabinet, and relates to the technical field of transformers. The outer auxiliary frame and the inner auxiliary frame are additionally arranged on the basis of the outer supporting frame and the inner supporting frame, the primary winding coil is independently installed through the outer supporting frame and the inner supporting frame, the secondary winding coil is independently installed through the outer auxiliary frame and the inner auxiliary frame, and the installed secondary winding coil and the primary winding coil are arranged in an inside-outside staggered mode. Therefore, the primary winding coil and the secondary winding coil are arranged in a double-layer mode, even if the coils are spaced, the number of turns of the coils can be increased, the problem that after the coils are spaced, the number of turns of the coils can be reduced, and the number of turns of the coils can be reduced can be solved. Therefore, the conversion efficiency of the transformer is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a coil support system, a transformer and a smelting cabinet. Background Art

[0002] A transformer with high conversion efficiency is generally large in size and mainly includes a toroidal magnetic core and a coil passing through the toroidal magnetic core.

[0003] In order to ensure the insulation and stability between the coils, a support structure is often set between the coils and between the coils and the magnetic core to serve as a spacing. Then, epoxy pouring technology is used to allow epoxy resin to penetrate between the coils and between the coils and the magnetic core to form a solid insulation layer.

[0004] However, the above-mentioned support structure only separates the coils, which reduces the number of coil turns (the flow of energy is restricted), thereby affecting the conversion efficiency, resulting in increased loss and reduced power. Therefore, further improvement is needed. Utility Model Content

[0005] One of the purposes of the present invention is to solve the problem in the prior art that only spacing the coils apart reduces the number of coil turns, thereby affecting the conversion efficiency of the transformer.

[0006] A second object of the present utility model is to provide a transformer.

[0007] The third purpose of the present utility model is to provide a coil installation method.

[0008] A fourth object of the present invention is to provide a smelting cabinet.

[0009] In order to achieve one of the above purposes, the present invention adopts the following technical solution: a coil support system, including an outer support frame and an inner support frame, wherein the outer side of the outer support frame is provided with a plurality of spaced first mounting grooves, and the inner side of the inner support frame is provided with a plurality of spaced second mounting grooves.

[0010] An outer auxiliary frame is arranged on the inner side of the outer support frame, and a plurality of third mounting grooves spaced apart from each other are arranged on the inner side of the outer auxiliary frame. The third mounting grooves are located at the back end of the frame portion between the first mounting grooves, and the first mounting grooves and the third mounting grooves form an inner-outer staggered arrangement.

[0011] An inner auxiliary frame is configured on the outer side of the inner support frame, and a plurality of fourth mounting grooves spaced apart from each other are set on the inner side of the inner auxiliary frame. The fourth mounting grooves are located at the back end direction of the frame area between the second mounting grooves, and the second mounting grooves and the fourth mounting grooves form an inner-outer staggered arrangement.

[0012] The above coil support system is applied to a transformer, a reactor, or other structures having a magnetic core, a primary winding coil, and a secondary winding coil, and the present invention does not impose any specific restrictions.

[0013] In the above technical solution, during installation, the embodiment of the utility model arranges the outer auxiliary frame on the outside of the magnetic core, and the inner auxiliary frame on the inside of the magnetic core. Then, the secondary winding coil is embedded in the third mounting groove of the outer auxiliary frame and in the fourth mounting groove of the inner auxiliary frame. At this time, the secondary winding coil is wound around the annular magnetic core, and a gap is maintained between the primary winding coil and the secondary winding coil, and between the secondary winding coil and the magnetic core.

[0014] Next, the outer support frame is arranged on the outside of the outer auxiliary frame, and the inner support frame is arranged on the inside of the inner auxiliary frame. Then, the primary winding coil is embedded in the first mounting groove of the outer support frame and in the second mounting groove of the inner support frame. At this time, the primary winding coil is wound around the annular magnetic core, and gaps are maintained between the primary winding coils and between the primary winding coils and the magnetic core.

[0015] The first mounting slot and the third mounting slot form an inside-outside staggered arrangement, and the second mounting slot and the fourth mounting slot form an inside-outside staggered arrangement, so that the primary winding coil and the secondary winding coil form an inside-outside staggered arrangement, thereby making the arrangement of the primary winding coil and the secondary winding coil non-interfering with each other.

[0016] The beneficial effects of the utility model are:

[0017] First, an outer auxiliary frame and an inner auxiliary frame are added to the outer and inner support frames. The primary winding coil is installed separately through the outer and inner support frames, and the secondary winding coil is installed separately through the outer and inner auxiliary frames. After installation, the secondary winding coil and the primary winding coil form an internal and external staggered arrangement, thereby ensuring that the arrangement of the primary winding coil and the secondary winding coil does not interfere with each other. This solves the problem that spacing the coils will reduce the number of coil turns, thereby affecting the conversion efficiency of the transformer.

[0018] Second, the primary winding coil and the secondary winding coil are arranged in a double-layer vertical arrangement without interfering with each other. This not only increases the induced voltage of the coil by increasing the number of turns of the coil, thereby improving the coupling performance; but also strengthens the magnetic fields between the coils by having the same direction of the coils, further improving the coupling performance.

[0019] Furthermore, in an embodiment of the present invention, a plurality of the outer support frames are arranged in a ring structure, and the outer support frames are connected to each other, or gaps are left between the outer support frames.

[0020] The plurality of inner support frames are arranged in a ring structure, and the inner support frames are connected to each other, or gaps are left between the inner support frames.

[0021] The plurality of outer auxiliary frames are arranged in a ring structure, and the outer auxiliary frames are connected to each other, or gaps are left between the outer auxiliary frames.

[0022] The plurality of inner auxiliary frames are arranged in a ring structure, and the inner auxiliary frames are connected to each other, or gaps are left between the inner auxiliary frames.

[0023] Furthermore, in an embodiment of the present invention, the outer support frame, the inner support frame, the outer auxiliary frame and the inner auxiliary frame are all made of insulating materials.

[0024] Furthermore, in an embodiment of the present invention, the insulating material is an epoxy resin material.

[0025] Furthermore, in an embodiment of the present invention, a back groove 1 is provided at the back end of the frame portion, and the back groove 1 cooperates with the third installation groove to form a circular hole structure.

[0026] A second back groove is provided at the back end of the frame area, and the second back groove cooperates with the fourth mounting groove to form a circular hole structure.

[0027] In order to achieve the second of the above-mentioned objectives, the present invention adopts the following technical solution: a transformer having the coil support system described in one of the above-mentioned objectives of the utility model.

[0028] Furthermore, in an embodiment of the present invention, the transformer includes a primary winding coil, a secondary winding coil and a magnetic core, the outer support frame and the outer auxiliary frame in the coil support system are distributed on the outside of the magnetic core, and the inner support frame and the inner auxiliary frame in the coil support system are distributed on the inside of the magnetic core.

[0029] The primary winding coil and the secondary winding coil are passed through the annular magnetic core.

[0030] The primary winding coil is embedded in the first mounting groove of the outer support frame and the second mounting groove of the inner support frame, and the secondary winding coil is embedded in the third mounting groove of the outer auxiliary frame and the fourth mounting groove of the inner auxiliary frame. The primary winding coil and the secondary winding coil form an inside-outside staggered arrangement.

[0031] To achieve the third objective, the present invention adopts the following technical solution: a coil installation method, which is based on the transformer described in the second objective of the present invention, and comprises the following steps:

[0032] The outer auxiliary frame is arranged on the outside of the magnetic core, and the inner auxiliary frame is arranged on the inside of the magnetic core. Then, the secondary winding coil is embedded in the third mounting slot of the outer auxiliary frame and in the fourth mounting slot of the inner auxiliary frame. At this time, the secondary winding coil is wound around the annular magnetic core, and a gap is maintained between the primary winding coil and the secondary winding coil, and between the secondary winding coil and the magnetic core.

[0033] Next, the outer support frame is arranged on the outside of the outer auxiliary frame, and the inner support frame is arranged on the inside of the inner auxiliary frame. Then, the primary winding coil is embedded in the first mounting groove of the outer support frame and in the second mounting groove of the inner support frame. At this time, the primary winding coil is wound around the annular magnetic core, and gaps are maintained between the primary winding coils and between the primary winding coils and the magnetic core.

[0034] The first mounting slot and the third mounting slot form an inside-outside staggered arrangement, and the second mounting slot and the fourth mounting slot form an inside-outside staggered arrangement, so that the primary winding coil and the secondary winding coil form an inside-outside staggered arrangement, thereby making the arrangement of the primary winding coil and the secondary winding coil non-interfering with each other.

[0035] Furthermore, in an embodiment of the present invention, in the above steps, the secondary winding coil is also embedded in the back groove 1 at the back end of the outer support frame, and embedded in the back groove 2 at the back end of the inner support frame.

[0036] In order to achieve the fourth purpose above, the present invention adopts the following technical solution: a melting cabinet, wherein the melting cabinet has the transformer described in the second purpose of the above utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of a melting cabinet according to an embodiment of the present invention.

[0038] Figure 2 Schematic diagram of a transformer according to an embodiment of the present invention.

[0039] Figure 3 This is a schematic structural diagram of a transformer according to an embodiment of the present utility model.

[0040] Figure 4 This is a schematic diagram of a coil support system according to an embodiment of the present invention.

[0041] Figure 5 This is a partial schematic diagram of the coil support system according to an embodiment of the present invention.

[0042] 10. External support frame, 11. First mounting slot, 12. Frame body, 13. Back slot 1;

[0043] 20. Inner support frame, 21. Second mounting slot, 22. Frame area, 23. Back slot 2;

[0044] 30. External auxiliary frame, 31. Third mounting slot;

[0045] 40, inner auxiliary frame, 31, fourth mounting slot;

[0046] 100. Transformer, 101. Primary winding coil, 102. Secondary winding coil, 103. Magnetic core. DETAILED DESCRIPTION

[0047] In order to clearly and completely describe the purpose and technical solution of the present invention and make its advantages more clearly understood, the following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention and are not intended to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0048] In the description of the present invention, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," "horizontal," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0049] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0050] For the purposes of simplicity and illustration, the principles of the embodiments are described primarily with reference to examples. In the following description, many specific details are provided to provide a thorough understanding of the embodiments. However, it will be apparent to those skilled in the art that these embodiments may not be limited to these specific details in practice. In some instances, well-known coil mounting methods and structures are not described in detail to avoid unnecessarily obscuring the embodiments. Furthermore, all embodiments may be used in combination with one another.

[0051] Example 1:

[0052] It should be noted that the drawings in the specification are the contents of the specification. The structural shapes, connection relationships, coordination relationships, and positional relationships that can be obtained without any doubt in the drawings in the specification should be understood as the contents of the specification.

[0053] A coil support system, such as Figures 2 to 5 As shown, it includes an outer support frame 10 and an inner support frame 20 , a plurality of first installation grooves 11 spaced apart from each other are set on the outer side of the outer support frame 10 , and a plurality of second installation grooves 21 spaced apart from each other are set on the inner side of the inner support frame 20 .

[0054] like Figure 4 、 Figure 5 As shown, an outer auxiliary frame 30 is arranged on the inner side of the outer support frame 10, and a plurality of spaced third mounting grooves 31 are set on the inner side of the outer auxiliary frame 30. The third mounting grooves 31 are located at the back end direction of the frame part 12 between the first mounting grooves 11, and the first mounting grooves 11 and the third mounting grooves 31 form an inside-outside staggered arrangement.

[0055] An inner auxiliary frame 40 is configured on the outer side of the inner support frame 20, and a plurality of spaced fourth mounting grooves 31 are set on the inner side of the inner auxiliary frame 40. The fourth mounting grooves 31 are located at the back end direction of the frame area 22 between the second mounting grooves 21, and the second mounting grooves 21 and the fourth mounting grooves 31 form an inner and outer staggered arrangement.

[0056] like Figure 2 、 Figure 3 As shown, the coil support system is applied to a transformer 100 or a reactor or other structures having a magnetic core 103 and a primary winding coil 101 and a secondary winding coil 102 , and the present invention does not impose any specific limitation thereto.

[0057] Implementation method: Figure 2 、 Figure 5 As shown, the outer auxiliary frame 30 is arranged on the outside of the magnetic core 103, and the inner auxiliary frame 40 is arranged on the inside of the magnetic core 103. Then, the secondary winding coil 102 is embedded in the third mounting groove 31 of the outer auxiliary frame 30 and the fourth mounting groove 31 of the inner auxiliary frame 40. At this time, the secondary winding coil 102 is wound around the annular magnetic core 103, and a gap is maintained between the primary winding coil 101 and the secondary winding coil 102, and between the secondary winding coil 102 and the magnetic core 103.

[0058] Next, the outer support frame 10 is arranged on the outside of the outer auxiliary frame 30, and the inner support frame 20 is arranged on the inside of the inner auxiliary frame 40. Then, the primary winding coil 101 is embedded in the first mounting groove 11 of the outer support frame 10 and in the second mounting groove 21 of the inner support frame 20. At this time, the primary winding coil 101 is wound around the annular magnetic core 103, and a gap is maintained between the primary winding coil 101 and the primary winding coil 101 and between the primary winding coil 101 and the magnetic core 103.

[0059] The first mounting slot 11 and the third mounting slot 31 are arranged in an inner-outer staggered arrangement, and the second mounting slot 21 and the fourth mounting slot 31 are arranged in an inner-outer staggered arrangement, so that the primary winding coil 101 and the secondary winding coil 102 are arranged in an inner-outer staggered arrangement, thereby making the arrangements of the primary winding coil 101 and the secondary winding coil 102 non-interfering with each other.

[0060] One advantage of the present invention is that an outer auxiliary frame 30 and an inner auxiliary frame 40 are added to the outer support frame 10 and the inner support frame 20. The primary winding coil 101 is independently mounted on the outer support frame 10 and the inner support frame 20, and the secondary winding coil 102 is independently mounted on the outer auxiliary frame 30 and the inner auxiliary frame 40. After installation, the secondary winding coil 102 and the primary winding coil 101 form an inner-outer staggered arrangement, thereby preventing interference between the primary winding coil 101 and the secondary winding coil 102. This solves the problem that spacing the coils apart reduces the number of turns, thereby affecting the conversion efficiency of the transformer 100.

[0061] It should be noted that the distance between the coils (primary winding coil 101 and secondary winding coil 102) is an important factor affecting coupling performance. In theory, the closer the coils are, the higher the coupling efficiency. However, too close a distance may cause the resonant frequency to shift, thereby reducing efficiency.

[0062] The distance between the coils can be modeled and optimized using COMSOL Multiphysics software: this software can help designers quickly model and optimize the coil system, adjusting the magnetic field distribution by changing the coil drive current to achieve the best coupling effect.

[0063] A second advantage of the present invention is that the primary winding coil 101 and the secondary winding coil 102 are arranged without interfering with each other. The primary winding coil 101 and the secondary winding coil 102 form a double-layer vertical arrangement. This not only increases the induced voltage of the coil by increasing the number of turns of the coil, thereby improving the coupling performance; but also strengthens the magnetic fields between the coils by having the same direction of the coils, further improving the coupling performance.

[0064] Specifically, if Figure 2 、 Figure 4As shown, a plurality of outer support frames 10 are arranged in a ring structure, and the outer support frames 10 are connected to each other, or gaps are left between the outer support frames 10 .

[0065] The plurality of inner support frames 20 are arranged in a ring structure, and the inner support frames 20 are connected to each other, or gaps are left between the inner support frames 20 .

[0066] The plurality of external auxiliary frames 30 are arranged in a ring structure, and the external auxiliary frames 30 are connected to each other, or gaps are left between the external auxiliary frames 30 .

[0067] The plurality of inner auxiliary frames 40 are arranged in a ring structure, and the inner auxiliary frames 40 are connected to each other, or gaps are left between the inner auxiliary frames 40 .

[0068] If a separate annular structure is not used but an integral annular structure is used, it will be difficult to put it on the magnetic core 103 and it will be easy to wear against the primary winding coil 101 and the secondary winding coil 102 .

[0069] Specifically, the outer support frame 10, the inner support frame 20, the outer auxiliary frame 30 and the inner auxiliary frame 40 are all made of insulating material, specifically epoxy resin material.

[0070] Specifically, if Figure 5 As shown, a back groove 13 is provided at the back end of the frame portion 12 , and the back groove 13 cooperates with the third installation groove 31 to form a circular hole structure.

[0071] A second back groove 23 is provided at the back end of the frame region 22 , and the second back groove 23 cooperates with the fourth mounting groove 31 to form a circular hole structure.

[0072] The secondary winding coil 102 can also be embedded in the back slot 13 at the back end of the outer support frame 10, and in the back slot 23 at the back end of the inner support frame 20. On the one hand, this allows the outer support frame 10 to better restrict the secondary winding coil 102, preventing the primary winding coil 101 and the secondary winding coil 102 from deviating from each other. On the other hand, it allows the distance between the secondary winding coil 102 and the primary winding coil 101 to be adjusted by the cooperation between the back slot 13 and the third mounting slot 31, and the back slot 23 and the fourth mounting slot 31. Specifically, the circular hole structure formed by the back slot 13 and the third mounting slot 31, and the circular hole structure formed by the back slot 23 and the fourth mounting slot 31, are adapted to the size of the secondary winding coil 102. Therefore, if the back groove 13 is deeper, the third mounting groove 31 will be shallower. This way, the circular hole structure formed by the back groove 13 and the third mounting groove 31 is closer to the first mounting groove 11. Conversely, the circular hole structure formed by the back groove 13 and the third mounting groove 31 is farther away from the first mounting groove 11. Similarly, the circular hole structure formed by the back groove 23 and the fourth mounting groove 31 is also the same.

[0073] Example 2:

[0074] A transformer 100, such as Figure 2 、 Figure 3 As shown, the transformer 100 has the coil support system in the above-mentioned embodiment 1.

[0075] Specifically, the transformer 100 includes a primary winding coil 101, a secondary winding coil 102 and a magnetic core 103. The outer support frame 10 and the outer auxiliary frame 30 in the coil support system are distributed on the outside of the magnetic core 103, and the inner support frame 20 and the inner auxiliary frame 40 in the coil support system are distributed on the inside of the magnetic core 103.

[0076] The primary winding coil 101 and the secondary winding coil 102 are passed through the annular magnetic core 103 .

[0077] The primary winding coil 101 is embedded in the first mounting groove 11 of the outer support frame 10 and the second mounting groove 21 of the inner support frame 20, and the secondary winding coil 102 is embedded in the third mounting groove 31 of the outer auxiliary frame 30 and the fourth mounting groove 31 of the inner auxiliary frame 40. The primary winding coil 101 and the secondary winding coil 102 form an inside-outside staggered arrangement.

[0078] Example 3:

[0079] A coil installation method is provided. The coil installation method is based on the transformer 100 in the second embodiment. The coil installation method includes the following steps:

[0080] The outer auxiliary frame 30 is arranged on the outside of the magnetic core 103, and the inner auxiliary frame 40 is arranged on the inside of the magnetic core 103. Then, the secondary winding coil 102 is embedded in the third mounting groove 31 of the outer auxiliary frame 30 and the fourth mounting groove 31 of the inner auxiliary frame 40. At this time, the secondary winding coil 102 is wound around the annular magnetic core 103, and a gap is maintained between the primary winding coil 101 and the secondary winding coil 102, and between the secondary winding coil 102 and the magnetic core 103.

[0081] Next, the outer support frame 10 is arranged on the outside of the outer auxiliary frame 30, and the inner support frame 20 is arranged on the inside of the inner auxiliary frame 40. Then, the primary winding coil 101 is embedded in the first mounting groove 11 of the outer support frame 10 and in the second mounting groove 21 of the inner support frame 20. At this time, the primary winding coil 101 is wound around the annular magnetic core 103, and a gap is maintained between the primary winding coil 101 and the primary winding coil 101 and between the primary winding coil 101 and the magnetic core 103.

[0082] The first mounting slot 11 and the third mounting slot 31 are arranged in an inner-outer staggered arrangement, and the second mounting slot 21 and the fourth mounting slot 31 are arranged in an inner-outer staggered arrangement, so that the primary winding coil 101 and the secondary winding coil 102 are arranged in an inner-outer staggered arrangement, thereby making the arrangements of the primary winding coil 101 and the secondary winding coil 102 non-interfering with each other.

[0083] The present invention adds an outer auxiliary frame 30 and an inner auxiliary frame 40 to the outer support frame 10 and the inner support frame 20. The primary winding coil 101 is independently mounted on the outer support frame 10 and the inner support frame 20, while the secondary winding coil 102 is independently mounted on the outer auxiliary frame 30 and the inner auxiliary frame 40. After installation, the secondary winding coil 102 forms an inner-outer staggered arrangement with the primary winding coil 101, thereby preventing interference between the primary winding coil 101 and the secondary winding coil 102. This solves the problem of reducing the number of coil turns after separating the coils, thereby affecting the conversion efficiency of the transformer 100.

[0084] It should be noted that the distance between the coils (primary winding coil 101 and secondary winding coil 102) is an important factor affecting coupling performance. In theory, the closer the coils are, the higher the coupling efficiency. However, too close a distance may cause the resonant frequency to shift, thereby reducing efficiency.

[0085] The distance between the coils can be modeled and optimized using COMSOL Multiphysics software: this software can help designers quickly model and optimize the coil system, adjusting the magnetic field distribution by changing the coil drive current to achieve the best coupling effect.

[0086] The arrangement of the primary winding coil 101 and the secondary winding coil 102 of the present invention does not interfere with each other. The primary winding coil 101 and the secondary winding coil 102 form a double-layer vertical arrangement. This not only increases the induced voltage of the coil by increasing the number of turns of the coil, thereby improving the coupling performance; but also strengthens the magnetic field between the coils by having the same direction of the coils, further improving the coupling performance.

[0087] Specifically, in the above steps, the secondary winding coil 102 is also embedded in the back groove 13 at the back end of the outer support frame 10 and the back groove 2 23 at the back end of the inner support frame 20 .

[0088] Example 4:

[0089] A melting cabinet, such as Figure 1 As shown, the melting cabinet has the transformer 100 in the above-mentioned embodiment 3.

[0090] Although the above describes the illustrative specific embodiments of the present invention so that technicians in this technical field can understand the present invention, the present invention is not limited to the scope of the specific embodiments. For ordinary technicians in this technical field, as long as various changes are within the spirit and scope of the present invention defined and determined by the attached claims, all utility model creations using the concept of the present invention are protected.

Claims

1. A coil support system, characterized in that: The outer side of the outer support frame is provided with a plurality of first installation slots spaced apart from each other, and the inner side of the inner support frame is provided with a plurality of second installation slots spaced apart from each other; An outer auxiliary frame is disposed on the inner side of the outer support frame, and a plurality of spaced third mounting slots are provided on the inner side of the outer auxiliary frame. The third mounting slots are located at the back end of the frame portion between the first mounting slots, and the first mounting slots and the third mounting slots are arranged in an inner-outer staggered manner. An inner auxiliary frame is configured on the outer side of the inner support frame, and a plurality of fourth mounting grooves spaced apart from each other are set on the inner side of the inner auxiliary frame. The fourth mounting grooves are located at the back end direction of the frame area between the second mounting grooves, and the second mounting grooves and the fourth mounting grooves form an inner-outer staggered arrangement.

2. The coil support system according to claim 1, characterized in that: The plurality of outer support frames are arranged in a ring structure, and the outer support frames are connected to each other, or gaps are left between the outer support frames; The plurality of inner support frames are arranged in a ring structure, and the inner support frames are connected to each other, or gaps are left between the inner support frames; The plurality of external auxiliary frames are arranged in a ring structure, and the external auxiliary frames are connected to each other, or gaps are left between the external auxiliary frames; The plurality of inner auxiliary frames are arranged in a ring structure, and the inner auxiliary frames are connected to each other, or gaps are left between the inner auxiliary frames.

3. The coil support system according to claim 1, characterized in that: The outer support frame, the inner support frame, the outer auxiliary frame and the inner auxiliary frame are all made of insulating materials.

4. The coil support system according to claim 3, characterized in that: The insulating material is epoxy resin material.

5. The coil support system according to claim 1, characterized in that: A back groove 1 is provided at the back end of the frame portion, and the back groove 1 cooperates with the third mounting groove to form a circular hole structure; A second back groove is provided at the back end of the frame area, and the second back groove cooperates with the fourth mounting groove to form a circular hole structure.

6. A transformer, characterized in that: The transformer has the coil support system according to any one of claims 1 to 5.

7. The transformer according to claim 6, characterized in that: The transformer includes a primary winding coil, a secondary winding coil and a magnetic core, the outer support frame and the outer auxiliary frame in the coil support system are distributed outside the magnetic core, and the inner support frame and the inner auxiliary frame in the coil support system are distributed inside the magnetic core; The primary winding coil and the secondary winding coil are arranged through the annular magnetic core; The primary winding coil is embedded in the first mounting groove of the outer support frame and the second mounting groove of the inner support frame, and the secondary winding coil is embedded in the third mounting groove of the outer auxiliary frame and the fourth mounting groove of the inner auxiliary frame. The primary winding coil and the secondary winding coil form an inside-outside staggered arrangement.

8. A melting cabinet, characterized in that: The smelting cabinet has the transformer described in claim 6 or 7.

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