Vertical coil winding structure

Abstract

The utility model discloses a vertical coil winding structure, which relates to the technical field of power equipment and comprises a transmission wheel and an insulating cylinder. Wherein the middle part of the transmission wheel is provided with a first avoiding hole for the core column of the iron core to pass through, the insulating cylinder is arranged on the first side of the transmission wheel and is provided with a through cavity which is communicated with the first avoiding hole and is used for the core column to pass through, and the insulating cylinder is detachably connected with the transmission wheel along the central axis direction of the first avoiding hole, so that the dismounting is convenient. During winding, one end of the coil material is fixed on the insulating cylinder, then the transmission wheel is driven to drive the insulating cylinder to rotate, so that the coil material is wound on the insulating cylinder, the tail end of the coil material on the insulating cylinder is fixed after winding, then the transmission wheel is dismounted, the wound coil material and the insulating cylinder are left on the core column together, and winding is completed. According to the coil vertical winding structure design, the defects existing in a horizontal winding process of an existing three-dimensional wound core transformer can be overcome, and the production efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of power equipment, and particularly to a vertical winding structure for coils. Background Art

[0002] As a main power transformation device in the power system, a transformer is required to have a certain short-circuit resistance. The three-dimensional triangular wound-core transformer is a type of transformer, which has the advantages of energy saving, material saving, balanced three-phase magnetic circuit, low loss, and low noise. Therefore, it is also highly favored in transformer applications.

[0003] Currently, the winding process of the existing three-dimensional wound-core transformer mainly uses horizontal winding, but the horizontal winding process has the following defects:

[0004] (1) During the winding process, the core column of the iron core is stressed, which easily leads to changes in no-load loss;

[0005] (2) When the horizontal winding process is completed, a flipping operation is required. During the flipping process, the coil often shifts, which may lead to coil damage;

[0006] (3) The horizontal winding process winds the coil material around the iron core by driving with gears. Sufficiently large gaps must be reserved to ensure the normal rotation of the mold, which results in an increase in coil diameter and cost;

[0007] (4) After winding, support bars usually need to be inserted between the inner side of the coil and the core column, which is time-consuming and laborious, reduces production efficiency, and it is also difficult to ensure the short-circuit resistance of the wound coil material. Utility Model Content

[0008] In view of this, the purpose of this application is to provide a vertical winding structure for coils, which can effectively solve the defects existing in the horizontal winding process of the existing three-dimensional wound-core transformer.

[0009] To achieve the above technical purpose, this application provides a vertical winding structure for coils, including:

[0010] A driving wheel, with a first avoidance hole in the middle for the core column of the iron core to pass through;

[0011] An insulating cylinder, which is arranged on the first side of the driving wheel. The insulating cylinder is provided with a through cavity that communicates with the first avoidance hole and allows the core column to pass through. The insulating cylinder is detachably connected to the driving wheel along the central axis direction of the first avoidance hole.

[0012] Furthermore, the insulating cylinder is provided with a plurality of first limiting parts;

[0013] A number of second limiting portions corresponding to the first limiting portions one by one are provided on the first side of the driving wheel, and the first limiting portion and the second limiting portion are inserted and matched along the central axis direction of the first avoidance hole.

[0014] Further, an installation flange is provided in a ring shape at the lower edge position of the outer peripheral wall of the insulating cylinder;

[0015] A number of the first limiting portions are provided on the installation flange.

[0016] Further, the first limiting portion is a notch;

[0017] The second limiting portion is a limiting protrusion that can be inserted into the notch one by one.

[0018] Further, it further includes:

[0019] An insulating support member, and the insulating support member is provided between the insulating cylinder and the core column.

[0020] Further, the insulating support member is sleeved on the core column;

[0021] The insulating support member is in a strip structure or a cylindrical structure.

[0022] Further, the thickness of the insulating support member is less than or equal to 3.5 mm.

[0023] Further, it further includes:

[0024] An orbital ring, the orbital ring is provided on the second side of the driving wheel and is rotatably connected to the driving wheel, and a second avoidance hole for the core column to pass through is provided on the orbital ring.

[0025] Further, a groove for the orbital ring to be embedded is provided on the second side of the driving wheel.

[0026] Further, it further includes:

[0027] A connecting plate, the connecting plate is provided on the side of the orbital ring away from the driving wheel and is connected to the orbital ring.

[0028] As can be seen from the above technical solution, the vertical winding structure of the coil designed in this application includes a driving wheel and an insulating cylinder. Among them, a first avoidance hole for the core column of the iron core to pass through is provided in the middle of the driving wheel, and the insulating cylinder is arranged on the first side of the driving wheel and is provided with a through cavity that communicates with the first avoidance hole and through which the core column passes, and is detachably connected to the driving wheel along the central axis direction of the first avoidance hole, which is convenient for disassembly. During winding, one end of the coil material is fixed to the insulating cylinder, and then the driving wheel is driven to drive the insulating cylinder to rotate, so as to wind the coil material onto the insulating cylinder. After winding, the tail end of the coil material on the insulating cylinder is fixed, and then the driving wheel is removed, and the wound coil material and the insulating cylinder are left on the core column together to complete the winding.

[0029] The design of the vertical winding structure of the coil in this application can bring the following beneficial effects:

[0030] (1) In this application, the coil material is wound onto the insulating cylinder. During the winding process, the core column is not stressed, avoiding the problem of air loss change caused by winding. Moreover, vertical winding can be carried out, and no flipping operation is required when the winding is completed, which can avoid the problem of damage to the wound coil material caused by flipping.

[0031] (2) There is no need to reserve too much rotating space, which can reduce the diameter of the wound coil material and lower the winding cost.

[0032] (3) By using the detachable connection and cooperation between the insulating cylinder and the driving wheel, the wound coil material and the insulating cylinder can be left on the core column together, so there is no need to place a support bar between the core column and the wound coil material, improving production efficiency and ensuring the short-circuit resistance of the wound coil material. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0034] Figure 1 The first three-dimensional structure diagram of a vertical winding structure of a coil provided in the present application installed on an iron core;

[0035] Figure 2 The second three-dimensional structure diagram of a vertical winding structure of a coil provided in the present application installed on an iron core;

[0036] Figure 3 The explosion diagram of a vertical winding structure of a coil provided in the present application;

[0037] Figure 4 This is a winding schematic diagram of a vertical winding structure of a coil provided in this application;

[0038] In the figure: 100, iron core; 101, core column; 200, transformer clamp; 300, coil material; 1, drive wheel; 11, second limiting part; 2, insulating cylinder; 21, mounting flange; 22, first limiting part; 3, insulating support. Specific embodiments

[0039] Next, the technical solutions of the embodiments of this application will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts shall fall within the scope of protection of the embodiments of this application.

[0040] In the description of the embodiments of this application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the embodiments of this application. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0041] In the description of the embodiments of this application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a replaceable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of this application can be understood according to specific situations.

[0042] The embodiments of this application disclose a vertical winding structure of a coil.

[0043] Please refer to Figure 1 and Figure 4 , an embodiment of a vertical winding structure of a coil provided in the embodiments of this application includes:

[0044] Drive wheel 1 and insulating cylinder 2.

[0045] Among them, a first avoidance hole for the core column 101 of the iron core 100 to pass through is provided in the middle of the driving wheel 1. The driving wheel 1 can specifically be a driving gear, without limitation. The driving wheel 1 can be installed and arranged on the transformer clamping piece 200 or an external platform.

[0046] The insulating cylinder 2 is arranged on the first side of the driving wheel 1. The insulating cylinder 2 is provided with a through cavity that communicates with the first avoidance hole and through which the core column 101 passes. The insulating cylinder 2 is detachably connected to the driving wheel 1 along the central axis direction of the first avoidance hole.

[0047] During winding, one end of the coil material 300 is fixed to the insulating cylinder 2, and then the driving wheel 1 is driven by corresponding equipment to drive the insulating cylinder 2 to rotate, so as to wind the coil material 300 onto the insulating cylinder 2. After winding, the tail end of the coil material 300 on the insulating cylinder 2 is fixed, and then the driving wheel 1 is removed, leaving the wound coil material 300 and the insulating cylinder 2 together on the core column 101 to complete the winding. The coil material 300 can be strip-shaped or wire-shaped, without limitation.

[0048] The vertical winding structure design of the coil in this application can bring the following beneficial effects:

[0049] 1. In this application, the coil material 300 is wound onto the insulating cylinder 2. During the winding process, the core column 101 is not stressed, avoiding the problem of the change in no-load loss caused by winding. Moreover, vertical winding can be carried out, and no flipping operation is required when the winding is completed, which can avoid the problem of damage to the wound coil material 300 due to flipping.

[0050] 2. There is no need to reserve too much rotating space, which can reduce the diameter of the wound coil material 300 and lower the winding cost.

[0051] 3. By utilizing the detachable connection and cooperation between the insulating cylinder 2 and the driving wheel 1, the wound coil material 300 and the insulating cylinder 2 can be left on the core column 101 together, so that there is no need to install a support bar between the core column 101 and the wound coil material 300, improving production efficiency and ensuring the short-circuit resistance of the wound coil material 300.

[0052] The above is the first embodiment of a coil vertical winding structure provided by this application. The following is the second embodiment of a coil vertical winding structure provided by this application. For details, please refer to Figures 1 to 4 .

[0053] Based on the solution of the above first embodiment:

[0054] Further, regarding the detachable fit between the insulating cylinder 2 and the transmission wheel 1, several first limiting portions 22 are provided on the insulating cylinder 2, and several second limiting portions 11 corresponding to the first limiting portions 22 one by one are provided on the first side of the transmission wheel 1. Among them, the first limiting portion 22 and the second limiting portion 11 are inserted and matched along the central axis direction of the first avoidance hole, so as to realize the detachable fit between the insulating cylinder 2 and the transmission wheel 1, and also ensure the synchronous rotation connection between the insulating cylinder 2 and the transmission wheel 1.

[0055] Further, in order to make the cooperation between the first limiting portion 22 on the insulating cylinder 2 and the second limiting portion 11 on the transmission wheel 1 more convenient, an installation flange 21 is annularly provided at the lower edge position of the outer peripheral wall of the insulating cylinder 2, and several first limiting portions 22 are provided on the installation flange 21.

[0056] Further, the first limiting portion 22 can be specifically designed as a notch, that is, several notches are formed on the installation flange 21. Correspondingly, the second limiting portion 11 can be designed as a limiting protrusion that can be inserted into the notch one by one.

[0057] Further, in order to reduce the contact wear caused by the rotation of the insulating cylinder 2 to the core column 101, an insulating support member 3 is additionally designed. The insulating support member 3 is arranged between the insulating cylinder 2 and the core column 101. The insulating support member 3 and the insulating cylinder 2 can both be made of an insulating material with good wear resistance, so that the rotational contact wear between the insulating cylinder 2 and the insulating support member 3 is smaller. After winding, the insulating support member 3, the insulating cylinder 2, and the coil material 300 wound on the insulating cylinder 2 are all left on the core column 101 together.

[0058] Further, regarding the installation and arrangement of the insulating support member 3, it can be sleeved and fixed on the core column 101. Specifically, the insulating support member 3 can be designed as a strip structure or a cylindrical structure. Taking the strip structure design as an example, as Figure 2 shown, the number of the insulating support members 3 can be designed as multiple, and there is no specific limit.

[0059] Further, the thickness of the insulating support member 3 is preferably designed to be less than or equal to 3.5 mm. Furthermore, the design diameter of the insulating cylinder 2 can be controlled within a more appropriate range, avoiding an excessive design diameter of the insulating cylinder 2 resulting in an increase in the required coil material 300, which helps to control costs.

[0060] Further, in order to facilitate the rotational installation of the transmission wheel 1, a track ring is additionally provided in this application. The track ring is arranged on the second side of the transmission wheel 1 and is rotationally connected to the transmission wheel 1. A second avoidance hole for the core column 101 to pass through is provided on the track ring.

[0061] Further, in order to facilitate the positioning connection between the track ring and the transmission wheel 1, a groove for the track ring to be embedded is provided on the second side of the transmission wheel 1.

[0062] Furthermore, for the convenience of installing the track ring, the present application further adds a connecting plate, which is arranged on the side of the track ring away from the driving wheel 1 and is connected to the track ring. The connecting plate can be fixed to the transformer clamping piece 200 or the external platform through corresponding fasteners such as screws / bolts, and no specific limitation is made.

[0063] It should be noted that since the structure designed in the present application needs to be sleeved on the core column 101, for the convenience of sleeving, the driving wheel 1, the track plate, and the insulating cylinder 2 can all be designed to be formed by assembling at least two parts. In this way, when sleeving, it can be disassembled first to form independent parts, and then the independent parts are respectively sleeved on the core column 101, and then assembled, and the sleeving is completed. Those skilled in the art can design according to actual usage needs without limitation.

[0064] The above has introduced in detail a coil vertical winding structure provided by the present application. For those of ordinary skill in the art, according to the idea of the embodiments of the present application, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A coil vertical winding structure, characterized in that: include: A transmission wheel, wherein a first avoidance hole is provided in the middle of the transmission wheel for the core column of the iron core to pass through; An insulating cylinder is arranged on the first side of the transmission wheel, the insulating cylinder is provided with a through cavity which is communicated with the first avoidance hole and for the core column to pass through, and the insulating cylinder is detachably connected to the transmission wheel along the central axis direction of the first avoidance hole.

2. A coil vertical winding structure according to claim 1, characterized in that: The insulating cylinder is provided with a plurality of first limiting parts; A plurality of second limiting portions corresponding to the first limiting portions are disposed on the first side of the transmission wheel, and the first limiting portions are plug-fitted with the second limiting portions along the central axis direction of the first avoidance hole.

3. A coil vertical winding structure according to claim 2, characterized in that: A mounting flange is provided around the lower edge of the outer peripheral wall of the insulating cylinder; A plurality of the first limiting portions are arranged on the mounting flange.

4. A coil vertical winding structure according to claim 3, characterized in that: The first limiting portion is a notch; The second limiting portion is a limiting protrusion that can be inserted into the notch in a one-to-one correspondence.

5. The vertical coil winding structure according to claim 1, characterized in that: Also includes: An insulating support member is arranged between the insulating tube and the core column.

6. A coil vertical winding structure according to claim 5, characterized in that: The insulating support member is sleeved and fixed on the core column; The insulating support is a belt-shaped structure or a cylindrical structure.

7. A coil vertical winding structure according to claim 5, characterized in that: The thickness of the insulating support member is less than or equal to 3.5 mm.

8. The vertical coil winding structure according to claim 1, characterized in that: Also includes: A track ring is arranged on the second side of the transmission wheel and is rotatably connected to the transmission wheel. The track ring is provided with a second avoidance hole for the core column to pass through.

9. A coil vertical winding structure according to claim 8, characterized in that: A groove for the track ring to be embedded is provided on the second side of the transmission wheel.

10. The vertical coil winding structure according to claim 8, characterized in that: Also includes: A connecting plate is arranged on a side of the track ring away from the transmission wheel and is connected to the track ring.

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