Winding supporting device for low-voltage foil winding copper bar

Abstract

The utility model provides a low-voltage foil-wound copper bar winding support device, which comprises a winding support main body, a foil-wound copper bar support piece and a connecting structure, the winding support main body is provided with a first winding support surface, a second winding support surface and a mounting part, the first winding support surface and the second winding support surface both extend along the longitudinal direction of the winding support main body, and the foil-wound copper bar support piece is connected with the connecting structure. The first end of the first winding supporting surface is connected with the first end of the second winding supporting surface, so that the copper foil can be wound to the second winding supporting surface through the first winding supporting surface; the installation part is arranged between the second end of the first winding supporting face and the second end of the second winding supporting face, the foil winding copper bar supporting piece can be detachably installed on the installation part through a connecting structure, and a limiting part used for installing a foil winding copper bar is arranged on the side, away from the installation part, of the foil winding copper bar supporting piece. The technical problem that the position and the size of a foil winding copper bar cannot be changed when a coil is wound, so that the whole die needs to be replaced is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a low-voltage foil-wound copper bar winding support device. Background Art

[0002] The transformer includes a coil, which is wound with copper foil. During the winding process, the copper foil is wound around a mold, and a central cavity is formed in the center of the coil. The central cavity is used to install the iron core, and the foil-wound copper busbar connected to the copper foil is also arranged in the central cavity. At present, there are often different requirements for transformers, and corresponding molds need to be made to wind the coils. When user requirements change, and the existing core cross-section cannot meet the no-load loss requirements but the difference is not large, the size of the central cavity can be adjusted by adjusting the longitudinal size of the mold, thereby adjusting the cross-sectional size of the core installed in the central cavity. However, the position and size of the foil-wound copper busbar cannot be changed. If a large copper busbar is used, it will cause waste. If the copper busbar is small in size, it will not be used normally. Therefore, in order to ensure that the foil-wound copper busbar meets the requirements, the mold needs to be replaced as a whole. Utility Model Content

[0003] The utility model aims to provide a low-voltage foil-wound copper bar winding support device to solve the technical problem that the position and size of the foil-wound copper bar cannot be changed when winding the coil, resulting in the need to replace the mold as a whole.

[0004] The above-mentioned purpose of the utility model can be achieved by adopting the following technical solutions:

[0005] The utility model provides a low-voltage foil-wound copper bar winding support device, comprising: a winding support body, a foil-wound copper bar support member and a connecting structure, wherein the winding support body has a first winding support surface, a second winding support surface and a mounting portion, wherein the first winding support surface and the second winding support surface both extend along the longitudinal direction of the winding support body, and the first end of the first winding support surface is connected to the first end of the second winding support surface, so that the copper foil can be wound to the second winding support surface via the first winding support surface;

[0006] The mounting portion is arranged between the second end of the first winding support surface and the second end of the second winding support surface, the foil-wound copper busbar support can be detachably mounted on the mounting portion through the connecting structure, and a limiting portion for mounting the foil-wound copper busbar is provided on the side of the foil-wound copper busbar support facing away from the mounting portion.

[0007] In a preferred embodiment, the foil-wound copper busbar support comprises a support plate and a raised portion arranged at a first end of the support plate, the second end of the support plate is connected to the second end of the second winding support surface, and the top surface of the support plate and the raised portion constitute the limiting portion.

[0008] In a preferred embodiment, the protrusion has a third winding support surface, and the third winding support surface is connected to the second end of the first winding support surface.

[0009] In a preferred embodiment, the third winding support surface extends to the outside of the top surface of the support plate.

[0010] In a preferred embodiment, the top surface of the support plate, the side wall of the second end of the support plate and the second end of the second winding support surface are directly connected in sequence.

[0011] In a preferred embodiment, the connection structure includes a longitudinal protruding column arranged on the foil-wound copper busbar support, and the mounting portion includes a mounting hole arranged on the winding support body, and the longitudinal protruding column can be inserted into the mounting hole.

[0012] In a preferred embodiment, the longitudinal protruding column is arranged on a side of the support plate facing the mounting portion, and the longitudinal protruding column extends longitudinally from the support plate; the longitudinal protruding column has a threaded portion.

[0013] In a preferred embodiment, the low-voltage foil-wound copper bar winding support device comprises a plurality of foil-wound copper bar support members, and the support plates of at least some of the foil-wound copper bar support members have unequal thicknesses.

[0014] In a preferred embodiment, the winding support body includes a first longitudinal portion and a second longitudinal portion, the mounting portion is arranged on the second longitudinal portion, the second longitudinal portion is connected to the first longitudinal portion, and the first longitudinal portion can move longitudinally relative to the second longitudinal portion.

[0015] In a preferred embodiment, the winding support body includes a locking frame, and the first longitudinal portion and the second longitudinal portion are both connected to the locking frame; and the first longitudinal portion can move longitudinally relative to the locking frame, and / or the second longitudinal portion can move longitudinally relative to the locking frame.

[0016] The characteristics and advantages of this utility model are:

[0017] When the low-voltage foil-wound copper bar winding support device is used to wind the coil, the foil-wound copper bar support is installed on the installation portion, and the foil-wound copper bar support is located between the first winding support surface and the second winding support surface. The foil-wound copper bar connected to the copper foil is installed on the limiting portion, and the foil-wound copper bar is positioned between the first winding support surface and the second winding support surface. When winding begins, the copper foil can be wound along the direction of the second end of the second winding support surface and the first end of the second winding support surface, and wound to the first winding support surface, and then wound a set number of turns. During winding, the foil-wound copper bar support is used to position the foil-wound copper bar. After winding is completed, the low-voltage foil-wound copper bar winding support device is removed, and the foil-wound copper bar support is located inside the coil wound by the copper foil. The foil-wound copper busbar support is detachably connected to the winding support body. When the transformer capacity changes or the low-voltage voltage level changes, and the position or size of the foil-wound copper busbar needs to be adjusted, the corresponding foil-wound copper busbar support can be replaced to adjust the position of the foil-wound copper busbar relative to the winding support body during winding, so that the position of the foil-wound copper busbar relative to the coil is adjusted accordingly after the winding is completed, so as to adjust the position and size of the foil-wound copper busbar according to needs without having to replace the entire low-voltage foil-wound copper busbar winding support device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 An exploded view of a low-voltage foil-wound copper busbar winding support device provided by the utility model;

[0020] Figure 2 A schematic structural diagram of an embodiment of a foil-wound copper bar support member in a low-voltage foil-wound copper bar winding support device provided by the utility model;

[0021] Figure 3 A front view of an embodiment of a low-voltage foil-wound copper busbar winding support device provided by the utility model;

[0022] Figure 4 for Figure 3 Left view of

[0023] Figure 5 A schematic structural diagram of another embodiment of a foil-wound copper bar support member in a low-voltage foil-wound copper bar winding support device provided by the utility model;

[0024] Figure 6A front view of another embodiment of the low-voltage foil-wound copper busbar winding support device provided by the utility model;

[0025] Figure 7 for Figure 6 Left view of

[0026] Figure 8 A schematic structural diagram of another embodiment of a foil-wound copper bar support member in a low-voltage foil-wound copper bar winding support device provided by the utility model;

[0027] Fig. 9 A front view of another embodiment of the low-voltage foil-wound copper busbar winding support device provided by the utility model;

[0028] Fig.10 for Fig. 9 Left view of .

[0029] Description of Figure Numbers:

[0030] 10. Winding support body; 11. Mounting portion; 12. Mounting surface;

[0031] 20. First winding support surface; 21. First end of the first winding support surface; 22. Second end of the first winding support surface;

[0032] 30. Second winding support surface; 31. First end of the second winding support surface; 32. Second end of the second winding support surface;

[0033] 40. first longitudinal portion; 41. first side wall; 42. third side wall;

[0034] 50. second longitudinal portion; 51. second side wall; 52. fourth side wall;

[0035] 60. Locking frame; 61. Bolt; 62. Waist-shaped hole;

[0036] 70. foil-wound copper bar support; 71. stopper; 72. support plate; 721. top surface of the support plate; 722. side wall of the second end of the support plate; 73. raised portion; 731. third winding support surface;

[0037] 80. Connecting structure; 81. Longitudinal protruding column; 82. Threaded portion; 83. Nut. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] The utility model provides a low-voltage foil-wound copper bar winding support device, such as Figure 1-Figure 10 As shown, it includes: a winding support body 10, a foil-wound copper busbar support member 70 and a connecting structure 80. The winding support body 10 has a first winding support surface 20, a second winding support surface 30 and a mounting portion 11. The first winding support surface 20 and the second winding support surface 30 both extend along the longitudinal direction of the winding support body 10. The first end 21 of the first winding support surface is connected to the first end 31 of the second winding support surface, so that the copper foil can be wound to the second winding support surface 30 through the first winding support surface 20; the mounting portion 11 is arranged between the second end 22 of the first winding support surface and the second end 32 of the second winding support surface. The foil-wound copper busbar support member 70 can be detachably mounted on the mounting portion 11 through the connecting structure 80, and a limiting portion 71 for mounting the foil-wound copper busbar is provided on the side of the foil-wound copper busbar support member 70 facing away from the mounting portion 11.

[0040] When the low-voltage foil-wound copper bar winding support device is used to wind a coil, the foil-wound copper bar support member 70 is installed on the installation portion 11, and the foil-wound copper bar support member 70 is located between the first winding support surface 20 and the second winding support surface 30. The foil-wound copper bar connected to the copper foil is installed on the limiting portion 71, that is, the foil-wound copper bar is positioned between the first winding support surface 20 and the second winding support surface 30. When winding begins, the copper foil can be wound along the direction of the second end 32 of the second winding support surface and the first end 31 of the second winding support surface, and wound to the first winding support surface 20, and then wound for a set number of turns. During winding, the foil-wound copper bar support member 70 positions the foil-wound copper bar. After winding is completed, after the low-voltage foil-wound copper bar winding support device is removed, the foil-wound copper bar support member 70 is located inside the coil wound by the copper foil. The foil-wound copper busbar support 70 is detachably connected to the winding support body 10. When the transformer capacity changes or the low-voltage voltage level changes, and the position or size of the foil-wound copper busbar needs to be adjusted, the corresponding foil-wound copper busbar support 70 can be replaced to adjust the position of the foil-wound copper busbar relative to the winding support body 10 during winding, so that the position of the foil-wound copper busbar relative to the coil is adjusted accordingly after the winding is completed, so as to adjust the position and size of the foil-wound copper busbar according to needs without having to replace the entire low-voltage foil-wound copper busbar winding support device.

[0041] In one embodiment, the foil-wound copper bar support 70 includes a support plate 72 and a protrusion 73 disposed at a first end of the support plate 72, a second end of the support plate 72 is connected to the second end 32 of the second winding support surface, and a top surface 721 of the support plate and the protrusion 73 form a stopper 71. Figure 1 As shown, the limiting portion 71 is a groove surrounded by the top surface 721 of the support plate and the raised portion 73, and the foil-wrapped copper busbar can be arranged in the groove. The top surface 721 of the support plate and the raised portion 73 limit the foil-wrapped copper busbar; and, by connecting the second end of the support plate 72 with the second end 32 of the second winding support surface, the copper foil is conveniently extended from the foil-wrapped copper busbar to the second winding support surface 30, so that the copper foil is conveniently wound in the direction from the second end 32 of the second winding support surface to the first end 31 of the second winding support surface.

[0042] Furthermore, the raised portion 73 has a third winding support surface 731, which is connected to the second end 22 of the first winding support surface. When winding the first turn, the copper foil is wound from the second winding support surface 30 to the first winding support surface 20, and then continues to be wound to the second end 22 of the first winding support surface. The third winding support surface 731 of the raised portion 73 guides the copper foil to facilitate the copper foil to surround the foil-wrapped copper busbar provided on the foil-wrapped copper busbar support 70.

[0043] Furthermore, the third winding support surface 731 extends to the outside of the top surface 721 of the support plate. When winding the first circle, the copper foil is wound from the first winding support surface 20 to the third winding support surface 731, and extends along the third winding support surface 731 to the outside of the top surface 721 of the support plate. Since the foil-wound copper bar is arranged on the top surface 721 of the support plate during winding, the copper foil smoothly extends to the outside of the foil-wound copper bar, which is convenient for the copper foil to surround the foil-wound copper bar during winding. Preferably, the raised portion 73 is generally triangular. Preferably, the third winding support surface 731 is a cylindrical surface and is directly connected to the second winding support surface 30 and has a smooth transition.

[0044] In one embodiment, the top surface 721 of the support plate, the side wall 722 of the second end of the support plate and the second end 32 of the second winding support surface are directly connected in sequence. Figure 1 and Figure 2 , Figure 5 Hehe Figure 8 As shown, the first end of the support plate 72 is provided with a protrusion 73, and the second end is open, so that when the foil-wrapped copper busbar is arranged on the top surface 721 of the support plate, the copper foil connected to the foil-wrapped copper busbar extends outward from the second end of the support plate 72, and is smoothly wound around the second winding support surface 30 through the side wall 722 of the second end of the support plate, which is convenient for installing the foil-wrapped copper busbar on the support plate 72 and for winding the copper foil.

[0045] In one embodiment, the connection structure 80 includes a longitudinal protruding column 81 disposed on the foil-wound copper bar support 70, and the mounting portion 11 includes a mounting hole (not shown) disposed on the winding support body 10, and the longitudinal protruding column 81 can be inserted into the mounting hole. Figure 1 , Figure 4 , Figure 7 and Fig.10 As shown, when the longitudinal protruding column 81 is inserted into the mounting hole, the relative position between the foil-wound copper bar support 70 and the winding support body 10 can be positioned, and the foil-wound copper bar support 70 can be easily disassembled and replaced. Figure 1 As shown, the mounting portion 11 includes a mounting surface 12 located between the second end 22 of the first winding support surface and the second end 32 of the second winding support surface. The mounting hole is provided on the mounting surface 12 , and the mounting surface 12 supports the foil-wound copper busbar support 70 .

[0046] Furthermore, the longitudinal protruding column 81 is disposed on the side of the support plate 72 facing the mounting portion 11, and the longitudinal protruding column 81 extends longitudinally from the support plate 72; the longitudinal protruding column 81 has a threaded portion 82. The side wall of the longitudinal protruding column 81 cooperates with the inner wall of the mounting hole for positioning. Figure 1 , Figure 4 , Figure 7 and Fig.10 As shown, the nut 83 connected to the threaded portion 82 abuts against the end face of the mounting hole that is away from the foil-wound copper bar, so as to fasten the foil-wound copper bar to the winding support body 10. Specifically, the winding support body 10 is provided with a hollow cavity, and the longitudinal protruding column 81 extends into the hollow cavity. The nut 83 is located in the hollow cavity and connected to the threaded portion 82. The longitudinal protruding column 81 can be an M12 screw, and the part of the screw that is not provided with a thread is used as a positioning portion. The longitudinal protruding column 81 is fixedly connected to the support plate 72, and preferably, the two are an integrated structure.

[0047] In one embodiment, if Figure 2 , Figure 5 Hehe Figure 8 As shown, the low-voltage foil-wound copper bar winding support device includes a plurality of foil-wound copper bar support members 70, and the thickness of the support plates 72 of at least some of the foil-wound copper bar support members 70 are not equal. According to the requirements, a suitable foil-wound copper bar support member 70 is selected to be installed on the winding support body 10, and the distance between the foil-wound copper bar and the winding support body 10 is adjusted by the thickness of the support plate 72. When the thickness of the support plate 72 increases, the distance between the foil-wound copper bar and the winding support body 10 is increased.

[0048] In one embodiment, the winding support body 10 includes a first longitudinal portion 40 and a second longitudinal portion 50, the mounting portion 11 is arranged on the second longitudinal portion 50, the second longitudinal portion 50 is connected to the first longitudinal portion 40, and the first longitudinal portion 40 can move longitudinally relative to the second longitudinal portion 50, and the longitudinal dimension of the winding support body 10 can be adjusted by the relative longitudinal movement of the first longitudinal portion 40 and the second longitudinal portion 50.

[0049] like Figure 1 As shown, the first winding support surface 20 includes a first side wall 41 arranged on the first longitudinal portion 40 and a second side wall 51 arranged on the second longitudinal portion 50; the second winding support surface 30 includes a third side wall 42 arranged on the first longitudinal portion 40 and a fourth side wall 52 arranged on the second longitudinal portion 50; the first side wall 41 and the second side wall 51 may be directly connected or not directly connected, as long as it is ensured that the copper foil can be wound from the first side wall 41 to the second side wall 51, or from the second side wall 51 to the first side wall 41.

[0050] The third side wall 42 and the fourth side wall 52 may be directly connected or not directly connected, as long as the copper foil can be wound from the third side wall 42 to the fourth side wall 52 or from the fourth side wall 52 to the third side wall 42 .

[0051] The connection mentioned in this article is not limited to direct connection. The first end 21 of the first winding support surface is connected to the first end 31 of the second winding support surface. Specifically, the first end 21 of the first winding support surface and the first end 31 of the second winding support surface can be directly connected, or there can be a distance between them, as long as it is guaranteed that the copper foil can be wound from the first winding support surface 20 to the second winding support surface 30.

[0052] Further, the winding support body 10 includes a locking frame 60, and the first longitudinal portion 40 and the second longitudinal portion 50 are both connected to the locking frame 60; and the first longitudinal portion 40 can move longitudinally relative to the locking frame 60, and / or the second longitudinal portion 50 can move longitudinally relative to the locking frame 60. As long as any one or all of the first longitudinal portion 40 and the second longitudinal portion 50 can move longitudinally relative to the locking frame 60, the first longitudinal portion 40 and the second longitudinal portion 50 can be moved relative to each other in the longitudinal direction to adjust the longitudinal dimension of the winding support body 10.

[0053] Specifically, Figure 1As shown, the first longitudinal portion 40 is provided with a waist-shaped hole 62 extending longitudinally, and the locking frame 60 is connected to the first longitudinal portion 40 by a bolt 61, and the bolt 61 can be adjusted in the waist-shaped hole 62 along the longitudinal direction, so as to achieve the longitudinal relative movement of the first longitudinal portion 40 and the locking frame 60. The second longitudinal portion 50 is provided with a waist-shaped hole 62 extending longitudinally, and the locking frame 60 is connected to the second longitudinal portion 50 by a bolt 61, and the bolt 61 can be adjusted in the waist-shaped hole 62 along the longitudinal direction, so as to achieve the longitudinal relative movement of the second longitudinal portion 50 and the locking frame 60.

[0054] In another embodiment, a waist-shaped hole 62 can be provided on the locking frame 60, and a matching screw hole is provided on the first longitudinal portion 40 or the second longitudinal portion 50. The bolt 61 passes through the waist-shaped hole 62 and is connected to the screw hole, which can also realize the position adjustment between the first longitudinal portion 40 and the locking frame 60, and the position adjustment between the second longitudinal portion 50 and the locking frame 60.

[0055] Taking into account the changes in transformer capacity and low-voltage output voltage, which lead to changes in low-voltage current, the size of the foil-wrapped copper busbar needs to be adjusted accordingly, and the position of the foil-wrapped copper busbar also needs to be adjusted with the size of the foil-wrapped copper busbar.

[0056] The low-voltage foil-wound copper bar winding support device provided by the utility model achieves the purpose of adjusting the position and size of the foil-wound copper bar by replacing the foil-wound copper bar support member 70, solves the problem that the size and position of the foil-wound copper bar cannot be adjusted after the core cross-section is adjusted during coil winding, increases the versatility of the adjustable mold, and avoids the waste of reopening the mold when the customer changes the low-voltage output voltage or changes the capacity and the size and position of the low-voltage copper bar need to be adjusted.

[0057] The reinforcement method of the low-voltage foil-wound copper busbar winding support device provided by the utility model comprises:

[0058] The arc surface of the first longitudinal portion 40 is processed into a plane as the mounting surface 12, and a suitable number of mounting holes that cooperate with the foil-wound copper bar support 70 are set on the mounting surface 12. After the support plate 72 is punched, the screw is inserted into the hole, the screw extends longitudinally, and the screw is welded to the support plate 72. After welding, the part of the screw that exceeds the top surface 721 of the support plate is ground flat, and the screw serves as a longitudinal protruding column 81. During processing, support plates 72 of different thicknesses can be selected according to actual needs. Before winding the low-voltage coil, it is only necessary to fix the appropriate foil-wound copper bar support 70 to the first longitudinal portion 40 through the nut 83 and the longitudinal protruding column 81, and then the coil winding can be started.

[0059] The above are only several embodiments of the present invention. Those skilled in the art can make various changes or modifications to the embodiments of the present invention based on the contents disclosed in the application documents without departing from the spirit and scope of the present invention.

Claims

1. A low-voltage foil-wound copper busbar winding support device, characterized in that: include: A winding support body, a foil-wound copper bar support and a connecting structure, wherein the winding support body has a first winding support surface, a second winding support surface and a mounting portion, wherein the first winding support surface and the second winding support surface both extend in the longitudinal direction of the winding support body, and a first end of the first winding support surface is connected to a first end of the second winding support surface, so that the copper foil can be wound to the second winding support surface via the first winding support surface; The mounting portion is arranged between the second end of the first winding support surface and the second end of the second winding support surface, the foil-wound copper busbar support can be detachably mounted on the mounting portion through the connecting structure, and a limiting portion for mounting the foil-wound copper busbar is provided on the side of the foil-wound copper busbar support facing away from the mounting portion.

2. The low-voltage foil-wound copper busbar winding support device according to claim 1 is characterized in that: The foil-wound copper bar support comprises a support plate and a protrusion arranged at a first end of the support plate, the second end of the support plate is connected to the second end of the second winding support surface, and the top surface of the support plate and the protrusion constitute the limiting portion.

3. The low-voltage foil-wound copper busbar winding support device according to claim 2, characterized in that: The protruding portion has a third winding support surface, and the third winding support surface is connected to the second end of the first winding support surface.

4. The low-voltage foil-wound copper busbar winding support device according to claim 3 is characterized in that: The third winding support surface extends to the outer side of the top surface of the support plate.

5. The low-voltage foil-wound copper busbar winding support device according to claim 2, characterized in that: The top surface of the support plate, the side wall of the second end of the support plate and the second end of the second winding support surface are directly connected in sequence.

6. The low-voltage foil-wound copper busbar winding support device according to claim 2, characterized in that: The connection structure comprises a longitudinal protruding column arranged on the foil-wound copper bar support, and the mounting portion comprises a mounting hole arranged on the winding support body, and the longitudinal protruding column can be inserted into the mounting hole.

7. The low-voltage foil-wound copper busbar winding support device according to claim 6, characterized in that: The longitudinal protruding column is arranged on a side of the support plate facing the mounting portion, and the longitudinal protruding column extends longitudinally from the support plate; the longitudinal protruding column has a threaded portion.

8. The low-voltage foil-wound copper busbar winding support device according to claim 2, characterized in that: The low-voltage foil-wound copper bar winding support device comprises a plurality of foil-wound copper bar support members, and the thicknesses of the support plates of at least some of the foil-wound copper bar support members are unequal.

9. The low-voltage foil-wound copper busbar winding support device according to claim 1, characterized in that: The winding support body includes a first longitudinal portion and a second longitudinal portion, the mounting portion is arranged on the second longitudinal portion, the second longitudinal portion is connected to the first longitudinal portion, and the first longitudinal portion can move longitudinally relative to the second longitudinal portion.

10. The low-voltage foil-wound copper busbar winding support device according to claim 9, characterized in that: The winding support body comprises a locking frame, and the first longitudinal portion and the second longitudinal portion are both connected to the locking frame; and, The first longitudinal portion is longitudinally movable relative to the locking frame, and / or the second longitudinal portion is longitudinally movable relative to the locking frame.

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