A coil structure, a coil installation method, a transformer and a melting cabinet

Abstract

The present invention discloses a coil structure, a coil installation method, a transformer and a smelting cabinet, which relate to the technical field of transformers, including winding coils, lead-out coils and lead-in coils. The present invention separates the winding coils, lead-out coils and lead-in coils of the coil structure, wherein the winding coils are separated into a plurality of winding coils. Based on this, the winding coils can be pre-bent before installation, and bent into a first wire, a second wire and a third wire. On this basis, the first wire and the second wire are further bent to form a first pipe section and a second pipe section that are separated and pluggable. In this way, after the winding coils are passed through the magnetic core, the winding coils, the winding coils and the lead-out coils and the lead-in coils can be connected together to complete the installation of the coil structure. This solves the problem that it is difficult to complete the installation of the coil without the help of bending equipment during the coil installation process.

Description

Technical Field

[0001] The present invention relates to the technical field of transformers, and in particular to a coil structure, a coil installation method, a transformer and a smelting cabinet. Background Art

[0002] High-power melting cabinets usually use large transformers. Large transformers generally include a toroidal core and a coil wound around the toroidal core. The coil is connected to the copper busbar outside the transformer, forming the input and output ends of the transformer.

[0003] The disadvantage of the above-mentioned large transformer is that the coil is large in size. In order to form a turn-by-turn structure of the coil mounted on the toroidal core, the coil needs to be bent using special bending equipment.

[0004] The installation method of the coils mentioned above requires the use of bending equipment for bending. When the bending equipment is performing the bending operation, the coil installation work is suspended, and the coils must be bent every time they are hit, which greatly affects the installation efficiency of the coils. Summary of the Invention

[0005] One of the purposes of the present invention is to solve the problem in the prior art that it is difficult to complete the installation of the coil without the aid of bending equipment during the coil installation process.

[0006] A second object of the present invention is to provide a coil installation method.

[0007] A third object of the present invention is to provide a transformer.

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

[0009] To achieve one of the above-mentioned purposes, the present invention adopts the following technical solution: a coil structure, including a winding coil, a lead-out coil and an lead-in coil, the winding coil including a first wire, a second wire and a third wire connected to each other, and the connection between the first wire and the third wire, and the connection between the second wire and the third wire are both bent structures.

[0010] The first conductor has a first tube section bent inwardly, and the first tube section is provided with a receiving port. The second conductor has a second tube section bent inwardly, and the second tube section is adapted to the receiving port.

[0011] The coil structure further includes an outgoing coil and an incoming coil. The outgoing coil has a bent third pipe section. The third pipe section is provided with a socket, and the socket is adapted to the second pipe section.

[0012] The introduction coil has a bent fourth pipe section, and the fourth pipe section is adapted to the receiving port.

[0013] In the above technical solution, when installing the embodiment of the present invention, there are multiple winding coils, and the first pipe section in the previous winding coil is plugged into the second pipe section receiving interface in the next winding coil to form a turn-by-turn structure of the winding coil.

[0014] Then, the remaining unconnected second pipe section of the frontmost winding coil is plugged into the socket of the third pipe section of the lead-out coil, and the remaining unconnected first pipe section of the rearmost winding coil is plugged into the fourth pipe section of the lead-in coil, so that the lead-in coil and the lead-out coil form the input and output ends of the winding coil.

[0015] The beneficial effects of the present invention are:

[0016] The present invention separates the winding coil, lead-out coil and introduction coil of the coil structure, wherein the winding coil is separated into a plurality of parts. Based on this, the winding coil can be pre-bent before installation, and bent into a first wire, a second wire and a third wire. On this basis, the first wire and the second wire are further bent to form a first pipe section and a second pipe section that are separated and pluggable. In this way, after the winding coil is passed through the magnetic core, the winding coils, the winding coils and the lead-out coil and the introduction coil can be connected together to complete the installation of the coil structure. This solves the problem that it is difficult to complete the installation of the coil without the help of bending equipment during the coil installation process.

[0017] Furthermore, in an embodiment of the present invention, the first conductor is skewed relative to the second conductor, or the second conductor is skewed relative to the first conductor, so that the first tube segment and the second tube segment are staggered in the left-right or front-back direction. This allows the winding coils to be connected to each other after being distributed around the annular magnetic core.

[0018] Furthermore, in an embodiment of the present invention, the first pipe segment is higher or lower than the height of the second pipe segment, so that the first pipe segment and the second pipe segment are staggered in the vertical direction.

[0019] Furthermore, in an embodiment of the present invention, the winding coil has multiple parts, and the first tube section in one winding coil is plugged into the second tube section receiving interface in another winding coil, so that the winding coil forms a turn-to-turn structure.

[0020] Furthermore, in an embodiment of the present invention, after the connection between the plurality of winding coils is completed, the remaining unconnected second pipe segments are connected to the sockets of the third pipe segments, and the remaining unconnected sockets of the first pipe segments are connected to the fourth pipe segments.

[0021] Furthermore, in an embodiment of the present invention, the winding coil, the lead-out coil, and the lead-in coil are all hollow copper tube structures.

[0022] To achieve the second objective, the present invention adopts the following technical solution: a coil installation method, the coil installation method is based on the coil structure described in one of the above objectives, the coil structure is wound around an annular magnetic core to form a primary winding and a secondary winding on the annular magnetic core, the coil installation method comprising the following steps:

[0023] The coil structure is divided into multiple winding coils, and each winding coil is pre-bent:

[0024] The pre-bending process comprises: bending the left and right ends of the third wire in each winding coil to form a first wire and a second wire, or bending one end of the first wire in each winding coil to form a third wire, and then bending one end of the third wire to form a second wire.

[0025] Then, after the winding coil is wound around the annular magnetic core, the first tube section in the previous winding coil is plugged into the second tube section receiving interface in the next winding coil, so that the winding coil forms a turn-by-turn structure.

[0026] Then, the remaining unconnected second pipe section of the frontmost winding coil is plugged into the socket of the third pipe section of the lead-out coil, and the remaining unconnected first pipe section of the rearmost winding coil is plugged into the fourth pipe section of the lead-in coil, so that the lead-in coil and the lead-out coil form the input and output ends of the winding coil.

[0027] Furthermore, in an embodiment of the present invention, in the above steps, the first pipe segment and the second pipe segment are staggered in the left-right or front-back direction, so that the winding coils can be plugged into each other after being distributed around the annular magnetic core.

[0028] The first tube section and the second tube section are staggered in the vertical direction, so that the connection between the winding coils is less likely to interfere with each other, and the distance between the winding coils can be closer.

[0029] To achieve the third of the above objectives, the present invention adopts the following technical solution: a transformer having the coil structure described in one of the above objectives.

[0030] The transformer includes a toroidal magnetic core, and the coil structure is wound around the toroidal magnetic core to form a primary winding and a secondary winding on the toroidal magnetic core.

[0031] The lead-out coil in the coil structure is connected to the lead-in coil and the copper busbar outside the transformer, forming the current input and output ends of the transformer.

[0032] To achieve the fourth objective above, the present invention adopts the following technical solution: a melting cabinet having the transformer described in the third objective above. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 Schematic diagram of a melting cabinet with a transformer according to an embodiment of the present invention.

[0034] Figure 2 3D is a schematic three-dimensional diagram of a transformer according to an embodiment of the present invention.

[0035] Figure 3 Schematic diagram of the structure of the transformer according to an embodiment of the present invention.

[0036] Figure 4 This is a schematic diagram of the winding coil, the lead-out coil and the lead-in coil after separation according to an embodiment of the present invention.

[0037] Figure 5 This is a schematic diagram of the winding coil, lead-out coil and lead-in coil after installation according to an embodiment of the present invention.

[0038] 10. Winding coil, 11. First conductor, 12. Second conductor, 13. Third conductor, 14. First pipe section, 15. Second pipe section, 16. Socket;

[0039] 20. Lead-out coil, 21. Third pipe section, 22. Socket;

[0040] 30. Introducing coil, 31. Fourth pipe section;

[0041] 100. Transformer, 101. Magnetic core, 102. Copper busbar. DETAILED DESCRIPTION

[0042] In order to clearly and completely describe the objectives and technical solutions of the present invention and make the advantages more clearly understood, the embodiments of the present invention are further described in detail below 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, not all of them, and are only used to explain the embodiments of the present invention, not 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.

[0043] 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 do not 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 "one," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] In the description of the present invention, 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 may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or 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 the present invention based on the specific circumstances.

[0045] 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. Example 1

[0046] 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.

[0047] A coil structure, such as Figure 1-4 As shown, it includes a winding coil 10, an outgoing coil 20 and an incoming coil 30, as shown in FIG. Figure 4 As shown, the winding coil 10 includes a first conductive wire 11 , a second conductive wire 12 and a third conductive wire 13 , and the connection between the first conductive wire 11 and the third conductive wire 13 and the connection between the second conductive wire 12 and the third conductive wire 13 are both bent structures.

[0048] The first conductor 11 has a first pipe section 14 bent inwardly, and the first pipe section 14 is provided with a socket 16 . The second conductor 12 has a second pipe section 15 bent inwardly, and the second pipe section 15 is adapted to the socket 16 .

[0049] The coil structure further includes an outgoing coil 20 and an incoming coil 30 . The outgoing coil 20 has a bent third tube section 21 . The third tube section 21 is provided with a socket 22 . The socket 22 is adapted to fit with the second tube section 15 .

[0050] The introduction coil 30 has a bent fourth pipe section 31 , which is adapted to the socket 16 .

[0051] Specifically, there are multiple winding coils 10, and when installed, as shown in FIG. Figure 5 As shown, the first tube section 14 in the previous winding coil 10 is plugged into the receiving interface 16 of the second tube section 15 in the next winding coil 10, so that the winding coil 10 forms a turn-to-turn structure.

[0052] Then, the remaining unconnected second pipe segment 15 of the frontmost winding coil 10 is plugged into the socket 22 of the third pipe segment 21 of the lead-out coil 20, and the socket 16 of the remaining unconnected first pipe segment 14 of the rearmost winding coil 10 is plugged into the fourth pipe segment 31 of the lead-in coil 30, so that the lead-in coil 30 and the lead-out coil 20 form the input and output ends of the winding coil 10.

[0053] The advantage of the present invention is that the winding coil 10, the lead-out coil 20 and the introduction coil 30 of the coil structure are separated, wherein the winding coil 10 is separated into multiple parts. Based on this, the winding coil 10 can be pre-bent before installation, and bent into a first wire 11, a second wire 12 and a third wire 13. On this basis, the first wire 11 and the second wire 12 are further bent to form a first pipe section 14 and a second pipe section 15 that are separated and pluggable. In this way, after the winding coil 10 is passed through the magnetic core 101, the winding coils 10 and the winding coils 10 and the lead-out coil 20 and the introduction coil 30 can be connected together to complete the installation of the coil structure. This solves the problem that it is difficult to complete the installation of the coil without the help of bending equipment during the coil installation process.

[0054] Specifically, after the plugging is completed, welding is performed on the plugging location, and both the socket 16 and the socket 22 have a tapered mouth structure.

[0055] Silver soldering is preferably used for welding. The advantages of silver soldering are low contact resistance, difficulty in destroying the molecular structure, good fluidity, and the ability to form a better seal.

[0056] Furthermore, the receiving port 16 and the socket 22 with the tapered mouth structure can better gather the welding materials and form a better seal.

[0057] Specifically, if Figure 4As shown, the first conductor 11 is tilted relative to the second conductor 12, or the second conductor 12 is tilted relative to the first conductor 11, so that the first tube section 14 and the second tube section 15 are staggered in the left-right or front-back direction. This allows the winding coils 10 to be connected to each other after being distributed around the annular core 101.

[0058] More specifically, if Figure 5 As shown, the first pipe section 14 is higher or lower than the height of the second pipe section 15, so that the first pipe section 14 and the second pipe section 15 are staggered in the vertical direction.

[0059] The advantage of the present invention is that the first tube section 14 and the second tube section 15 are staggered in the vertical direction, so that the connection between the winding coils 10 is not easily interfered with, and the distance between the winding coils 10 can be closer.

[0060] The tight spacing between windings 10 increases inductance. The inductance of an inductor is proportional to the number of turns in the windings 10, so the more turns, the greater the inductance. This is important in high-frequency circuits and filters, improving filtering effectiveness and the resonant frequency and gain of the circuit.

[0061] The tight spacing between the winding coils 10 also improves the uniformity of current distribution. As current flows through the coil, the increased number of turns reduces the current intensity within each turn, resulting in a more uniform current distribution. This helps improve circuit performance and stability in high-frequency and power supply circuits.

[0062] Specifically, if Figure 5 As shown, the winding coil 10 has multiple winding coils, and the first tube section 14 in one winding coil 10 is plugged into the receiving interface 16 of the second tube section 15 in another winding coil 10, so that the winding coil 10 forms a turn-to-turn structure.

[0063] More specifically, if Figure 5 As shown, after the multiple winding coils 10 are plugged in, the remaining unplugged second pipe section 15 is plugged in with the socket 22 of the third pipe section 21 , and the remaining unplugged socket 16 of the first pipe section 14 is plugged in with the fourth pipe section 31 .

[0064] More specifically, if Figure 3 As shown, the winding coil 10, the lead-out coil 20 and the lead-in coil 30 are all hollow copper tube structures.

[0065] The lead-out coil 20 and the lead-in coil 30 are connected to a water cooling tank, so that cooling water flows from the lead-in coil 30 (hollow) into the winding coil 10 (hollow) for cooling, and then flows out of the lead-out coil 20 (hollow). This is a conventional arrangement and will not be explained in detail. Example 2

[0066] A coil installation method is provided. The coil installation method is based on the coil structure in the first embodiment. The coil structure is wound around the annular magnetic core 101 to form a primary winding and a secondary winding on the annular magnetic core 101. The coil installation method includes the following steps:

[0067] The coil structure is divided into a plurality of winding coils 10, and each winding coil 10 is pre-bent:

[0068] The pre-bending process is as follows: bending the left and right ends of the third wire 13 in each winding coil 10 to form the first wire 11 and the second wire 12, or bending one end of the first wire 11 of each winding coil 10 to form the third wire 13, and then bending one end of the third wire 13 to form the second wire 12.

[0069] Then, after the winding coil 10 is wound around the annular magnetic core 101 , the first tube section 14 of the previous winding coil 10 is plugged into the receiving interface 16 of the second tube section 15 of the next winding coil 10 , so that the winding coil 10 forms a turn-to-turn structure.

[0070] Then, the remaining unconnected second pipe segment 15 of the frontmost winding coil 10 is plugged into the socket 22 of the third pipe segment 21 of the lead-out coil 20, and the socket 16 of the remaining unconnected first pipe segment 14 of the rearmost winding coil 10 is plugged into the fourth pipe segment 31 of the lead-in coil 30, so that the lead-in coil 30 and the lead-out coil 20 form the input and output ends of the winding coil 10.

[0071] The present invention separates the winding coil 10, the lead-out coil 20, and the lead-in coil 30 of the coil structure, wherein the winding coil 10 is separated into multiple parts. Based on this, the winding coil 10 can be pre-bent before installation (the bending process is completed before installation), and bent into a first wire 11, a second wire 12, and a third wire 13. On this basis, the first wire 11 and the second wire 12 are further bent to form a first pipe section 14 and a second pipe section 15 that are separated and pluggable. In this way, after the winding coil 10 is inserted into the magnetic core 101, the multiple winding coils 10 and the winding coil 10 and the lead-out coil 20 and the lead-in coil 30 can be connected together to complete the installation of the coil structure. This solves the problem that it is difficult to complete the installation of the coil without the help of bending equipment during the coil installation process.

[0072] Specifically, in the above steps, the first pipe section 14 and the second pipe section 15 are staggered in the left-right or front-back direction, so that the winding coils 10 can be plugged into each other after being distributed around the annular magnetic core 101 .

[0073] The first tube section 14 and the second tube section 15 are staggered in the vertical direction, so that the connection between the winding coils 10 is less likely to interfere with each other, and the distance between the winding coils 10 can be closer.

[0074] The tight spacing between windings 10 increases inductance. The inductance of an inductor is proportional to the number of turns in the windings 10, so the more turns, the greater the inductance. This is important in high-frequency circuits and filters, improving filtering effectiveness and the resonant frequency and gain of the circuit.

[0075] The tight spacing between the winding coils 10 also improves the uniformity of current distribution. As current flows through the coil, the increased number of turns reduces the current intensity within each turn, resulting in a more uniform current distribution. This helps improve circuit performance and stability in high-frequency and power supply circuits. Example 3

[0076] A transformer 100, such as Figure 2 As shown, the transformer 100 has the coil structure of the first embodiment.

[0077] The transformer 100 includes a toroidal core 101 . A coil structure is wound around the toroidal core 101 , forming a primary winding and a secondary winding on the toroidal core 101 .

[0078] The lead-out coil 20 in the coil structure is connected to the lead-in coil 30 and the copper bus 102 outside the transformer 100 , forming the current input and output ends of the transformer 100 .

[0079] It should be noted that the primary and secondary windings are arranged similarly to the design of the existing transformer 100. Specifically, the primary coil (also called the primary coil), or winding coil 10, typically consists of one or more small turns of wire, driven by a suitable power supply. The primary coil's primary function is to generate a magnetic field and transfer energy to the secondary coil. The secondary coil is a coil derived from the primary coil and is typically connected to the primary coil via a corresponding circuit. Because this is a conventional configuration, it will not be explained in detail. Example 4

[0080] A melting cabinet, such as Figure 1 As shown, the melting cabinet has the transformer 100 in the above-mentioned embodiment 3.

[0081] 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 skilled in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the appended claims, all inventions and creations based on the concepts of the present invention are protected.

Claims

1. A coil structure comprising a winding coil, an outgoing coil and an incoming coil, characterized in that: The winding coil includes a first conductive wire, a second conductive wire, and a third conductive wire connected to each other, wherein the connection between the first conductive wire and the third conductive wire, and the connection between the second conductive wire and the third conductive wire are both bent structures; The first conductor has a first tube section bent inwardly, the first tube section is provided with a receiving port, and the second conductor has a second tube section bent inwardly, the second tube section is adapted to the receiving port; The coil structure further includes an outgoing coil and an incoming coil, wherein the outgoing coil has a bent third tube segment, the third tube segment is provided with a socket, and the socket is adapted to the second tube segment; The introduction coil has a bent fourth pipe section, and the fourth pipe section is adapted to the receiving port; The lead-in coil and the lead-out coil are the input and output ends of the winding coil; The winding coils have a plurality of parts, and the second tube section of one winding coil is plugged into the first tube section receiving interface of another winding coil, so that the winding coils form a turn-to-turn structure; Silver soldering is performed on the plug-in joints; The winding coil, the lead-out coil and the lead-in coil are all hollow copper tube structures; The winding coil is wound around the annular magnetic core, and the lead-out coil and the lead-in coil are connected to a water cooling box.

2. The coil structure according to claim 1, characterized in that: The first conductive wire is in a skewed state relative to the second conductive wire, or the second conductive wire is in a skewed state relative to the first conductive wire, so that the first pipe segment and the second pipe segment are staggered in the left-right or front-back direction.

3. The coil structure according to claim 2, characterized in that: The first pipe section is higher or lower than the height of the second pipe section, so that the first pipe section and the second pipe section are staggered in the up and down directions.

4. The coil structure according to claim 1, characterized in that: After the plurality of winding coils are connected, the remaining unconnected second pipe segments are connected to the sockets of the third pipe segments, and the remaining unconnected sockets of the first pipe segments are connected to the fourth pipe segments.

5. A coil installation method, characterized in that: The coil installation method is based on the coil structure described in any one of claims 1 to 4 above, wherein the coil structure is wound around a toroidal magnetic core to form a primary winding and a secondary winding on the toroidal magnetic core. The coil installation method comprises the following steps: The coil structure is divided into multiple winding coils, and each winding coil is pre-bent: The pre-bending step comprises: bending the left and right ends of the third conductive wire in each winding coil to form a first conductive wire and a second conductive wire, or bending one end of the first conductive wire in each winding coil to form a third conductive wire, and then bending one end of the third conductive wire to form a second conductive wire; Then, after the winding coil is wound around the annular magnetic core, the first tube section of the previous winding coil is plugged into the second tube section of the next winding coil to form a turn-by-turn structure. Then, the remaining unconnected second pipe section of the frontmost winding coil is plugged into the socket of the third pipe section of the lead-out coil, and the remaining unconnected first pipe section of the rearmost winding coil is plugged into the fourth pipe section of the lead-in coil, so that the lead-in coil and the lead-out coil form the input and output ends of the winding coil.

6. The coil installation method according to claim 5, characterized in that: In the above steps, the first pipe section and the second pipe section are staggered in the left-right or front-back direction, so that the winding coils can be plugged into each other after being distributed around the annular magnetic core; The first tube section and the second tube section are staggered in the vertical direction, so that the connection between the winding coils is less likely to interfere with each other, and the distance between the winding coils can be closer.

7. A transformer, characterized in that: The transformer has the coil structure according to any one of claims 1 to 4.

8. A melting cabinet, characterized in that: The smelting cabinet has the transformer according to claim 7.

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