Coil supporting system, transformer, coil mounting method and smelting cabinet

Abstract

The invention discloses a coil supporting system, a transformer, a coil mounting method 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, and the secondary winding coil is independently installed through the outer auxiliary frame and the inner auxiliary frame, so that 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 present invention relates to the technical field of transformers, and in particular to a coil support system, a transformer, a coil installation method 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 supporting structure is often set between the coils and between the coils and the magnetic core. Then, epoxy casting technology is used to allow the epoxy resin to penetrate between the coils and between the coils and the magnetic core to form a solid insulating 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 losses and reduced power. Therefore, further improvement is needed. Summary of the invention

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

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

[0007] A third object of the present invention is to provide a coil installation method.

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

[0009] 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 a plurality of first installation grooves spaced apart from each other are arranged on the outer side of the outer support frame, and a plurality of second installation grooves spaced apart from each other are arranged on the inner side of the inner support frame.

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

[0011] An inner auxiliary frame is arranged on the outer side of the inner support frame, and a plurality of fourth mounting grooves spaced apart from each other are arranged 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 coil support system is applied to a transformer or a reactor or other structures having a magnetic core and a primary winding coil and a secondary winding coil, and the present invention does not make any specific limitation.

[0013] In the above technical scheme, when installing the embodiment of the present invention, 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, and then the secondary winding coil is embedded in the third installation groove of the outer auxiliary frame and in the fourth installation 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 groove and the third mounting groove form an inside-outside staggered arrangement, and the second mounting groove and the fourth mounting groove 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 between the primary winding coil and the secondary winding coil non-interfering with each other.

[0016] The beneficial effects of the present invention are:

[0017] First, an outer auxiliary frame and an inner auxiliary frame are added on the basis of the outer support frame and the inner support frame, and the primary winding coil is installed separately through the outer support frame and the inner support frame, and the secondary winding coil is installed separately through the outer auxiliary frame and the inner auxiliary frame, so that the secondary winding coil and the primary winding coil after installation form an inside-outside staggered arrangement, so that the arrangement of the primary winding coil and the secondary winding coil does not interfere with each other. In this way, the problem that the number of coil turns will be reduced after the coils are separated, thereby affecting the conversion efficiency of the transformer can be solved.

[0018] Second, the arrangement of the primary winding coil and the secondary winding coil does not interfere with each other. The primary winding coil and the secondary winding coil form a double-layer vertical arrangement, which 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 enhances the magnetic field 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 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.

[0022] A plurality of the 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 objectives, the present invention adopts the following technical solution: a transformer having the coil support system described in one of the above objectives of the invention.

[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 arranged 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] In order to achieve the third objective, the present invention adopts the following technical solution: a coil installation method, the coil installation method is based on the transformer described in the second objective of the invention, and the coil installation method 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 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.

[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 groove and the third mounting groove form an inside-outside staggered arrangement, and the second mounting groove and the fourth mounting groove 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 between 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 objective above, the present invention adopts the following technical solution: a smelting cabinet, wherein the smelting cabinet has the transformer described in the second objective above. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 Schematic diagram of a smelting 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 Schematic diagram of the structure of a transformer according to an embodiment of the present invention.

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

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

[0042] 10. outer support frame, 11. first mounting groove, 12. frame body part, 13. back groove 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 make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work 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 indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0049] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] For the purpose of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are proposed to provide a thorough understanding of the embodiments. However, it is obvious. For those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, known coil installation methods and structures are not described in detail to avoid making these embodiments unnecessarily difficult to understand. In addition, all embodiments can be used in combination with each other.

[0051] Embodiment 1:

[0052] It should be noted that the drawings in the specification are the contents of the specification. The structural shapes, connection relationships, matching 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 arranged on the outer side of the outer support frame 10 , and a plurality of second installation grooves 21 spaced apart from each other are arranged 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 arranged 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 body 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 arranged on the outer side of the inner support frame 20, and a plurality of fourth mounting grooves 31 are arranged 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-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 make any specific limitation.

[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, and then, the secondary winding coil 102 is embedded in the third mounting groove 31 of the outer auxiliary frame 30, and embedded in 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 groove 11 and the third mounting groove 31 form an inside-outside staggered arrangement, and the second mounting groove 21 and the fourth mounting groove 31 form an inside-outside staggered arrangement, so that the primary winding coil 101 and the secondary winding coil 102 form an inside-outside staggered arrangement, thereby making the arrangement between the primary winding coil 101 and the secondary winding coil 102 non-interfering with each other.

[0060] One of the advantages of the present invention is that an outer auxiliary frame 30 and an inner auxiliary frame 40 are added on the basis of an outer support frame 10 and an inner support frame 20, and a primary winding coil 101 is installed separately through the outer support frame 10 and the inner support frame 20, and a secondary winding coil 102 is installed separately through the outer auxiliary frame 30 and the inner auxiliary frame 40, so that the installed secondary winding coil 102 and the primary winding coil 101 form an inside-outside staggered arrangement, thereby making the arrangement between the primary winding coil 101 and the secondary winding coil 102 non-interfering with each other. In this way, the problem that the number of coil turns will be reduced after the coils are separated, thereby affecting the conversion efficiency of the transformer 100 can be solved.

[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 the coupling performance. In theory, the closer the coils are, the higher the coupling efficiency is, but too close a distance may cause the resonant frequency to shift, which in turn reduces the efficiency.

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

[0063] The second advantage of the present invention is that the arrangement of the primary winding coil 101 and the secondary winding coil 102 does not interfere with each other, and the primary winding coil 101 and the secondary winding coil 102 form a double-layer vertical arrangement, which 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 enhances the magnetic fields between the coils by having the same direction of the coils, thereby further improving the coupling performance.

[0064] Specifically, Figure 2 , Figure 4 As 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 multiple 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 is difficult to put it on the magnetic core 103 and it is 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, and specifically, the insulating material is epoxy resin material.

[0070] Specifically, 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 disposed 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 groove 13 at the back end of the outer support frame 10, and in the back groove 23 at the back end of the inner support frame 20. On the one hand, it is convenient for the outer support frame 10 to better restrict the secondary winding coil 102, so that the primary winding coil 101 and the secondary winding coil 102 are not easy to deviate; on the other hand, it is convenient to adjust the distance between the secondary winding coil 102 and the primary winding coil 101 through the cooperation of the back groove 13 and the third mounting groove 31, and through the cooperation of the back groove 23 and the fourth mounting groove 31. Specifically, the circular hole structure formed by the back groove 13 and the third mounting groove 31, and the circular hole structure formed by the back groove 23 and the fourth mounting groove 31 are adapted to the size of the secondary winding coil 102. Therefore, if the back groove 13 is deeper, the third installation groove 31 is shallower, so that the circular hole structure formed by the back groove 13 and the third installation groove 31 is closer to the first installation groove 11; conversely, the circular hole structure formed by the back groove 13 and the third installation groove 31 is farther than the first installation groove 11. Similarly, the circular hole structure formed by the back groove 23 and the fourth installation groove 31 is also the same.

[0073] Embodiment 2:

[0074] A transformer 100, such as Figure 2 , Figure 3 As shown, the transformer 100 has the coil support system in the first embodiment described above.

[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 inserted into 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] Embodiment 3:

[0079] A coil installation method is provided. The coil installation method is based on the transformer 100 in the above-mentioned embodiment 2. The coil installation method comprises 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 in 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 groove 11 and the third mounting groove 31 form an inside-outside staggered arrangement, and the second mounting groove 21 and the fourth mounting groove 31 form an inside-outside staggered arrangement, so that the primary winding coil 101 and the secondary winding coil 102 form an inside-outside staggered arrangement, thereby making the arrangement between 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 on the basis of the outer support frame 10 and the inner support frame 20. The primary winding coil 101 is installed separately through the outer support frame 10 and the inner support frame 20, and the secondary winding coil 102 is installed separately through the outer auxiliary frame 30 and the inner auxiliary frame 40, so that the installed secondary winding coil 102 and the primary winding coil 101 form an inside-outside staggered arrangement, thereby making the arrangement between the primary winding coil 101 and the secondary winding coil 102 non-interfering with each other. In this way, the problem that the number of coil turns will be reduced after the coils are separated, thereby affecting the conversion efficiency of the transformer 100 can be solved.

[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 the coupling performance. In theory, the closer the coils are, the higher the coupling efficiency is, but too close a distance may cause the resonant frequency to shift, which in turn reduces the efficiency.

[0085] The choice of distance between coils can be modeled and optimized using COMSOL Multiphysics software: this software can help designers quickly model and optimize the coil system, and adjust the magnetic field distribution by changing the driving current of the coil 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, which 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 enhances the magnetic fields between the coils by having the same direction of the coils, thereby 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 in the back groove 2 23 at the back end of the inner support frame 20 .

[0088] Embodiment 4:

[0089] A melting cabinet, such as Figure 1 As shown, the smelting 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 those skilled in the art can understand the present invention, the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the attached claims, all inventions and creations using the concepts of the present invention are protected.

Claims

1. A coil support system, characterized in that: It comprises an outer support frame and an inner support frame, wherein a plurality of first installation grooves spaced apart from each other are arranged on the outer side of the outer support frame, and a plurality of second installation grooves spaced apart from each other are arranged on the inner side of the inner support frame; An outer auxiliary frame is arranged inside the outer support frame, and a plurality of third installation grooves are arranged inside the outer auxiliary frame, the third installation grooves are located at the back end of the frame body between the first installation grooves, and the first installation grooves and the third installation grooves are arranged in an inner and outer staggered manner; An inner auxiliary frame is arranged on the outer side of the inner support frame, and a plurality of fourth mounting grooves spaced apart from each other are arranged 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: 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; A plurality of the 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; A plurality of the 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; A plurality of the 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 body, 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 installation groove to form a circular hole structure.

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

7. The transformer according to claim 6, characterized in that: The transformer comprises 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; 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 coil installation method, characterized in that: The coil installation method is based on the transformer described in claim 7. The following steps are involved: The outer auxiliary frame is arranged outside the magnetic core, and the inner auxiliary frame is arranged inside 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; Next, the outer support frame is arranged outside the outer auxiliary frame, and the inner support frame is arranged inside the inner auxiliary frame, and then 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. At this time, the primary winding coil is wound around the annular magnetic core, and a gap is maintained between the primary winding coils and between the primary winding coils and the magnetic core; The first mounting groove and the third mounting groove form an inside-outside staggered arrangement, and the second mounting groove and the fourth mounting groove 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 between the primary winding coil and the secondary winding coil non-interfering with each other.

9. The coil installation method according to claim 8, characterized in that: 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.

10. A melting cabinet, characterized in that: The smelting cabinet has the transformer as claimed in claim 6 or 7 above.

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