Coil structure, coil installation method, transformer and smelting cabinet

Abstract

The invention discloses a coil structure, a coil mounting method, a transformer and a smelting cabinet, and relates to the technical field of transformers, and the coil structure comprises a winding coil, a leading-out coil and a leading-in coil. According to the coil structure, the winding coils, the leading-out coils and the leading-in coils are separated, the multiple winding coils are separated, on the basis, the winding coils can be subjected to pre-bending treatment and bent into the first wire, the second wire and the third wire before installation, on the basis, the first wire and the second wire are bent, and therefore the winding coils are formed. The first pipe section and the second pipe section are separated and can be connected in an inserted mode. Therefore, after the winding coils penetrate through the magnetic core, the winding coils can be connected together, and the winding coils, the leading-out coil and the leading-in coil can be connected together, so that the installation of the coil structure is completed. The problem that in the coil installation process, coil installation is difficult to complete without bending operation conducted on a coil through bending equipment is solved.

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 to form the input and output ends of the transformer.

[0003] The disadvantage of the above large transformer is that the coil is large in size, and in order to form a turn-by-turn structure of the coil mounted on the annular magnetic core, it is necessary to use specific bending equipment to bend the coil.

[0004] The installation method of the above coil needs to be bent with the help of bending equipment. When the bending equipment is performing the bending operation, the coil installation work is suspended, and the coil must be bent every time it is hit, which greatly affects the installation efficiency of the coil. 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 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 includes 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 a lead-out coil and an lead-in coil. The lead-out coil has a bent third pipe segment. The third pipe segment is provided with a socket, and the socket is adapted to the second pipe segment.

[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] Next, the remaining unconnected second pipe segment of the frontmost winding coil is plugged into the socket of the third pipe segment of the lead-out coil, and the remaining unconnected first pipe segment of the rearmost winding coil is plugged into the fourth pipe segment 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: The present invention separates the winding coil, the lead-out coil and the lead-in 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 to be 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 inserted into the magnetic core, the winding coils, the winding coils and the lead-out coil and the lead-in coil can be connected together to complete the installation of the coil structure. This solves the problem that it is difficult to install the coil without the aid of bending equipment during the coil installation process.

[0016] Furthermore, in an embodiment of the present invention, the first conductor is in a skewed state relative to the second conductor, or the second conductor is in a skewed state relative to the first conductor, so that 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.

[0017] 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 up and down direction.

[0018] Furthermore, in an embodiment of the present invention, the winding coil has a plurality of parts, and a first tube section in one winding coil is plugged into a second tube section receiving interface in another winding coil, so that the winding coil forms a turn-to-turn structure.

[0019] Furthermore, in an embodiment of the present invention, after the plugging of the plurality of winding coils is completed, the remaining unplugged second pipe segments are plugged into the plug ports of the third pipe segments, and the remaining unplugged first pipe segments' socket ports are plugged into the fourth pipe segments.

[0020] 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.

[0021] 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 objectives of the invention, the coil structure is wound around the annular magnetic core, and a primary winding and a secondary winding are formed on the annular 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 steps of pre-bending treatment are: 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 of each winding coil to form a third wire, and then bending one end of the third wire to form a second wire.

[0022] 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.

[0023] Next, the remaining unconnected second pipe segment of the frontmost winding coil is plugged into the socket of the third pipe segment of the lead-out coil, and the remaining unconnected first pipe segment of the rearmost winding coil is plugged into the fourth pipe segment 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.

[0024] 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.

[0025] The first tube section and the second tube section are staggered in the up-down direction, so that the connection between the winding coils is not easily interfered with, and the distance between the winding coils can be closer.

[0026] In order to achieve the third of the above-mentioned objectives, the present invention adopts the following technical solution: a transformer having the coil structure described in one of the above-mentioned invention objectives.

[0027] The transformer comprises an annular magnetic core, and the coil structure is wound around the annular magnetic core to form a primary winding and a secondary winding on the annular magnetic core.

[0028] The lead-out coil in the coil structure is connected to the lead-in coil and the copper busbar outside the transformer to form the current input and output ends of the transformer.

[0029] 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 third objective above. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of a melting cabinet with a transformer according to an embodiment of the present invention.

[0031] Figure 2 It is a three-dimensional schematic diagram of a transformer according to an embodiment of the present invention.

[0032] Figure 3 Schematic diagram of the structure of a transformer according to an embodiment of the present invention.

[0033] Figure 4 It is a schematic diagram of the winding coil, the lead-out coil and the lead-in coil after being separated according to an embodiment of the present invention.

[0034] Figure 5 It 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.

[0035] 10. winding coil, 11. first conductor, 12. second conductor, 13. third conductor, 14. first pipe section, 15. second pipe section, 16. socket; 20. lead-out coil, 21. third pipe section, 22. socket; 30. Introduce coil, 31. Fourth pipe section; 100. Transformer. 101. Magnetic core. 102. Copper busbar. DETAILED DESCRIPTION

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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. Example 1

[0040] 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.

[0041] A coil structure, such as Figure 1-4 As shown, it includes a winding coil 10, a lead-out coil 20 and an lead-in 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 connected to each other. 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.

[0042] The first conductor 11 has a first pipe section 14 bent inwardly, and a receiving port 16 is provided on the first pipe section 14 . The second conductor 12 has a second pipe section 15 bent inwardly, and the second pipe section 15 is matched with the receiving port 16 .

[0043] The coil structure further includes an outgoing coil 20 and an incoming coil 30 . The outgoing coil 20 has a bent third pipe section 21 . The third pipe section 21 is provided with a socket 22 . The socket 22 is matched with the second pipe section 15 .

[0044] The introduction coil 30 has a bent fourth pipe section 31 , and the fourth pipe section 31 is adapted to the socket 16 .

[0045] Specifically, the winding coil 10 is multiple, and when installed, Figure 5As 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.

[0046] Next, 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.

[0047] The advantage of the present invention is that the winding coil 10, the lead-out coil 20 and the lead-in coil 30 of the coil structure are separated, wherein the winding coil 10 is separated into a plurality of parts, based on which the winding coil 10 can be pre-bent before installation to be bent into a first wire 11, a second wire 12 and a third wire 13, and 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 winding coils 10 and the winding coils 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. The problem that it is difficult to install the coil without the aid of bending equipment during the coil installation process is solved.

[0048] Specifically, after the plugging is completed, welding is performed at the plugging location, and both the socket 16 and the socket 22 have a tapered mouth structure.

[0049] Silver soldering is preferred for welding. The advantages of silver soldering are low contact resistance, not easy to destroy the molecular structure, good fluidity, and better ability to form a seal.

[0050] Furthermore, the receiving port 16 and the socket 22 with the tapered mouth structure can better gather the welding materials to form a better seal.

[0051] Specifically, Figure 4 As shown, the first conductor 11 is in a skewed state relative to the second conductor 12, or the second conductor 12 is in a skewed state 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. The winding coils 10 can be plugged into each other after being distributed around the annular magnetic core 101.

[0052] 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 up and down direction.

[0053] The advantage of the present invention is that the first tube section 14 and the second tube section 15 are staggered in the up-down direction, so that the connection between the winding coils 10 is not easily interfered, and the distance between the winding coils 10 can be closer.

[0054] The close connection between the winding coils 10 can increase the inductance value. The inductance value of the inductor is proportional to the number of turns of the winding coil 10. Therefore, the more turns, the greater the inductance value. This has important applications in high-frequency circuits and filters, and can improve the filtering effect and the resonant frequency and gain of the circuit.

[0055] The closeness between the winding coils 10 can also improve the uniformity of current distribution. When current flows through the coil, the increase in the number of turns can reduce the current intensity in each turn of the coil, thereby making the current distribution more uniform. This helps to improve the performance and stability of the circuit in high-frequency circuits and power supply circuits.

[0056] Specifically, Figure 5 As shown, the winding coil 10 has a plurality of winding coils, and a first tube section 14 in one winding coil 10 is plugged into a second tube section 15 in another winding coil 10 through a receiving interface 16, so that the winding coil 10 forms a turn-to-turn structure.

[0057] More specifically, if Figure 5 As shown, after the plugging of the plurality of winding coils 10 is completed, the remaining unplugged second pipe segment 15 is plugged into the plug opening 22 of the third pipe segment 21 , and the remaining unplugged receiving opening 16 of the first pipe segment 14 is plugged into the fourth pipe segment 31 .

[0058] 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.

[0059] The lead-out coil 20 and the lead-in coil 30 are connected to a water cooling box so that cooling water enters the winding coil 10 (hollow) from the lead-in coil 30 (hollow) for cooling and then flows out from the lead-out coil 20 (hollow). This is an existing conventional arrangement, so it will not be explained in detail. Example 2

[0060] A coil installation method is provided. The coil installation method is based on the coil structure in the above-mentioned embodiment 1. 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 comprises the following steps: The coil structure is divided into a plurality of winding coils 10, and each winding coil 10 is pre-bent: The steps of pre-bending treatment are: by bending the left and right ends of the third wire 13 in each winding coil 10, a first wire 11 and a second wire 12 are formed, or by bending one end of the first wire 11 of each winding coil 10 to form a third wire 13, and then bending one end of the third wire 13 to form a second wire 12.

[0061] Then, after the winding coil 10 is wound around the annular magnetic core 101 , 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.

[0062] Next, 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.

[0063] 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 ones, based on which, the winding coil 10 can be pre-bent before installation (the bending process is completed before installation), and bent into the first wire 11, the second wire 12 and the third wire 13, and 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, 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. The problem that it is difficult to complete the installation of the coil without the help of bending equipment during the coil installation process is solved.

[0064] 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 .

[0065] The first tube section 14 and the second tube section 15 are staggered in the up-and-down 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.

[0066] The close connection between the winding coils 10 can increase the inductance value. The inductance value of the inductor is proportional to the number of turns of the winding coil 10. Therefore, the more turns, the greater the inductance value. This has important applications in high-frequency circuits and filters, and can improve the filtering effect and the resonant frequency and gain of the circuit.

[0067] The closeness between the winding coils 10 can also improve the uniformity of current distribution. When current flows through the coil, the increase in the number of turns can reduce the current intensity in each turn of the coil, thereby making the current distribution more uniform. This helps to improve the performance and stability of the circuit in high-frequency circuits and power supply circuits. Example 3

[0068] A transformer 100, such as Figure 2 As shown, the transformer 100 has the coil structure in the first embodiment.

[0069] 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 .

[0070] 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 .

[0071] It should be noted that the arrangement of the primary winding and the secondary winding is arranged with reference to the design of the existing transformer 100. Specifically, the primary coil (also called the primary coil), that is, the winding coil 10, is usually composed of one or more wires with a small number of turns and driven by a suitable power supply. The main function of the primary coil 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 usually connected to the primary coil through a corresponding circuit. Because it is an existing conventional setting, it will not be explained in detail. Example 4

[0072] A melting cabinet, such as Figure 1 As shown, the smelting cabinet has the transformer 100 in the above-mentioned embodiment 3.

[0073] 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 structure, comprising a winding coil, a lead-out coil and an lead-in coil, characterized in that: The winding coil comprises a first conductive wire, a second conductive wire and a third conductive wire which are connected to each other, and 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 pipe segment, the third pipe segment is provided with a socket, and the socket is adapted to the second pipe segment; The introduction coil has a bent fourth pipe section, and the fourth pipe section is adapted to the receiving port.

2. The coil structure according to claim 1, characterized in that: The first conductor is in a skewed state relative to the second conductor, or the second conductor is in a skewed state 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.

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: The winding coils have a plurality of winding coils, and a first pipe section in one winding coil is plugged into a second pipe section receiving interface in another winding coil, so that the winding coils form a turn-to-turn structure.

5. The coil structure according to claim 4, characterized in that: After the plugging of the plurality of winding coils is completed, the remaining unplugged second pipe segments are plugged into the plug openings of the third pipe segments, and the remaining unplugged receiving openings of the first pipe segments are plugged into the fourth pipe segments.

6. The coil structure according to claim 4, characterized in that: The winding coil, the lead-out coil and the lead-in coil are all hollow copper tube structures.

7. 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 6 above, the coil structure is wound around an annular magnetic core to form a primary winding and a secondary winding on the annular magnetic core, and 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 is: 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; 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-to-turn structure; Next, the remaining unconnected second pipe segment of the frontmost winding coil is plugged into the socket of the third pipe segment of the lead-out coil, and the remaining unconnected first pipe segment of the rearmost winding coil is plugged into the fourth pipe segment 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.

8. The coil installation method according to claim 7, 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 up-down direction, so that the connection between the winding coils is not easily interfered with, and the distance between the winding coils can be closer.

9. A transformer, characterized in that: The transformer has a coil structure as claimed in any one of claims 1 to 6.

10. A melting cabinet, characterized in that: The smelting cabinet has the transformer according to claim 9 above.

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