Axial split large-current transformer coil structure
By adopting a primary coil with a foil structure and a secondary coil arranged on the upper and lower surfaces in the transformer, combined with metal foil winding and insulating support pad fixing, the problems of large coil size and high manufacturing cost in the prior art are solved, and high efficiency is achieved , stable transformer production and operation.
Patent Information
- Application Number
- CN202420852450.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-23
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-23
AI Technical Summary
When the primary current of the existing axial split high-current transformer coil is large, the size is large and the conductor space utilization is low, resulting in high manufacturing costs.
The primary coil is a foil structure, and the secondary coil is two sets of coils arranged on the upper and lower sides. They are fixed by insulating support pads and clamps, and the coil is wound with metal foil to improve filling density and production efficiency.
The coil design is simplified, production efficiency and material utilization are improved, manufacturing costs are reduced, coil stability and transformer operation efficiency are enhanced, and large magnetic leakage loss and magnetic field loss are avoided.
Smart Images
Figure CN222190457U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of axially split high-current transformer coil design, in particular to an axially split high-current transformer coil structure. Background Art
[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are a primary coil, a secondary coil, and an iron core (magnetic core). Its primary functions include voltage conversion, current conversion, impedance conversion, isolation, and voltage regulation (magnetic saturation transformer). It is widely used in various industries. A transformer primarily consists of an iron core, clamps, coils, insulating supports, and a base.
[0003] When the transformer needs to have two independent outputs with exactly the same functional performance, the transformer needs to adopt an axial split type structure, such as Figure 1 and Figure 2 As shown, the primary input and secondary output are typically constructed as two identical coils, each mounted on the transformer core. The two primary coils are connected in parallel, functioning as one input coil, while the two secondary coils can operate independently or simultaneously. When the primary current is high, multiple wires must be wound in parallel. This configuration of two primary input coils, one above the other, results in a larger primary coil, lower wire space utilization, and a low effective wire packing density, which directly contributes to high transformer manufacturing costs. Utility Model Content
[0004] The purpose of the utility model is to provide an axially split high-current transformer coil structure, which improves the filling density of the primary coil conductor, reduces the volume of the coil, improves the production efficiency of the primary coil, and reduces the manufacturing cost.
[0005] In order to solve the above technical problems, the utility model provides an axially split high current transformer coil structure, comprising an iron core, a primary coil and a secondary coil;
[0006] The primary coil is a foil structure coil;
[0007] The secondary coils are two sets of coils arranged one above the other;
[0008] During assembly, the secondary coil is axially sleeved onto the iron core, and then the primary coil is axially sleeved onto the secondary coil.
[0009] Preferably, the primary coil is formed by winding metal foil in a layered structure from the inside to the outside.
[0010] Preferably, the width of the metal foil is consistent with the height of the coil.
[0011] Preferably, the secondary coil is an upper winding of the secondary coil and a lower winding of the secondary coil arranged up and down, both of which are wound by flat wires.
[0012] Preferably, the secondary coil comprises an upper winding of the secondary coil and a lower winding of the secondary coil arranged up and down, both of which are wound with metal foil.
[0013] Preferably, insulating support blocks are provided at both ends of the primary coil and the secondary coil.
[0014] Preferably, the primary coil and the secondary coil are fixed by the insulating support block and the clamp.
[0015] Compared with the prior art, the beneficial effects of the present invention are:
[0016] When the transformer secondary side requires two sets of output voltages and the primary current is relatively high, the utility model employs the axially split high-current transformer coil structure, simplifying the difficulty of primary coil design. The foil winding reduces the requirements for the production process, replacing the original structure of two flat wire coils with a single foil coil, increasing assembly speed and enhancing coil stability. The use of metal foil in coil production improves production efficiency and material utilization, reduces coil volume, and saves material and manufacturing costs. When the primary coil is wound with metal foil, the secondary coils can not only operate at full capacity simultaneously, but also with only one set operating at full capacity, eliminating the problem of increased transformer leakage magnetic field losses and increasing the flexibility of the secondary coil's output capacity. When the primary coil is wound with metal foil, the distribution of the leakage magnetic field in the middle of the coil can be improved, reducing eddy current losses in the metal parts caused by the leakage magnetic field, and improving the operating efficiency of the transformer. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural diagram of an existing axially split high current transformer;
[0018] Figure 2 It is a schematic diagram of the winding of the existing axially split high current transformer coil;
[0019] Figure 3 This is a structural diagram of an axially split high-current transformer provided by the utility model;
[0020] Figure 4 It is a schematic diagram of the winding of the primary coil and the secondary coil provided by the utility model.
[0021] In the figure: 1. iron core; 2. primary coil; 3. secondary coil; 4. insulating support block; 5. clamp; 301. upper winding of the secondary coil; 302. lower winding of the secondary coil. DETAILED DESCRIPTION
[0022] The following is a further detailed description of the present invention in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the drawings are greatly simplified and not to exact scale, and are intended solely to facilitate and clearly illustrate the embodiments of the present invention.
[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0024] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, 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 this utility model based on specific circumstances.
[0025] Example 1
[0026] The utility model provides an axial split high current transformer coil structure, please refer to Figure 3 and Figure 4 , including an iron core 1, a primary coil 2 and a secondary coil 3; the primary coil 2 is a foil structure coil; the secondary coil 3 is two groups of coils arranged up and down; during assembly, the secondary coil 3 is axially mounted on the iron core 1, and then the primary coil 2 is axially mounted on the secondary coil 3.
[0027] Specifically, the primary coil 2 is formed by winding a metal foil in a layered structure from the inside out, and the width of the metal foil is consistent with the height of the coil.
[0028] In some embodiments, the secondary coil 3 is composed of a secondary coil upper winding 301 and a secondary coil lower winding 302 arranged vertically, both of which are wound with flat wires.
[0029] In some embodiments, the secondary coil 3 is composed of a secondary coil upper winding 301 and a secondary coil lower winding 302 arranged vertically, both of which are wound with metal foil.
[0030] Specifically, insulating support blocks 4 are provided at both ends of the primary coil 2 and the secondary coil 3 , and the primary coil 2 and the secondary coil 3 are fixed by the insulating support blocks 4 and the clamps 5 .
[0031] When the transformer secondary side requires two sets of output voltages and the primary current is relatively high, the utility model employs the axially split high-current transformer coil structure, simplifying the difficulty of primary coil design. The foil winding reduces the requirements for the production process, replacing the original structure of two flat wire coils with a single foil coil, increasing assembly speed and enhancing coil stability. The use of metal foil in coil production improves production efficiency and material utilization, reduces coil volume, and saves material and manufacturing costs. When the primary coil is wound with metal foil, the secondary coils can not only operate at full capacity simultaneously, but also with only one set operating at full capacity, eliminating the problem of increased transformer leakage magnetic field losses and increasing the flexibility of the secondary coil's output capacity. When the primary coil is wound with metal foil, the distribution of the leakage magnetic field in the middle of the coil can be improved, reducing eddy current losses in the metal parts caused by the leakage magnetic field, and improving the operating efficiency of the transformer.
[0032] The above description is only a description of the preferred embodiment of the present invention and does not limit the scope of the present invention. Any changes and modifications made by ordinary technicians in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.
Claims
1. An axially split high current transformer coil structure, It is characterized in that It comprises an iron core (1), a primary coil (2) and a secondary coil (3); The primary coil (2) is a foil structure coil; The secondary coil (3) is two sets of coils arranged up and down; During assembly, the secondary coil (3) is axially sleeved onto the iron core (1), and then the primary coil (2) is axially sleeved onto the secondary coil (3).
2. An axially split high current transformer coil structure as claimed in claim 1, It is characterized in that The primary coil (2) is formed by winding metal foil in a layered structure from the inside to the outside.
3. An axially split high current transformer coil structure as claimed in claim 2, It is characterized in that The width of the metal foil is consistent with the height of the coil.
4. The axially split high current transformer coil structure according to claim 1, It is characterized in that The secondary coil (3) comprises a secondary coil upper winding (301) and a secondary coil lower winding (302) arranged up and down, both of which are wound by flat wires.
5. The axially split high current transformer coil structure as claimed in claim 1, It is characterized in that The secondary coil (3) comprises a secondary coil upper winding (301) and a secondary coil lower winding (302) arranged up and down, both of which are wound from metal foil.
6. The axially split high current transformer coil structure according to claim 1, It is characterized in that Insulating support blocks (4) are provided at both ends of the primary coil (2) and the secondary coil (3).
7. An axially split high current transformer coil structure as claimed in claim 6, It is characterized in that The primary coil (2) and the secondary coil (3) are fixed by means of the insulating support pad (4) and the clamp (5).