High-frequency transformer winding structure
Through the thin wire twisted iron core and multi-layer insulating sleeve structure, combined with the heat dissipation channel and thermal conductivity network, the heat dissipation and anti-interference problems of the high-frequency transformer winding structure are solved, and efficient heat dissipation and interference prevention effects are achieved.
Patent Information
- Application Number
- CN202420541409.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-20
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-03-20
AI Technical Summary
The existing high-frequency transformer winding structure has shortcomings in terms of heat dissipation effect and anti-interference, resulting in high-temperature damage and interference problems.
A thin wire stranded iron core and multi-layer insulating sleeve structure are adopted, combining the heat dissipation channel and the thermal conduction network to improve heat dissipation efficiency and reduce interference between low-voltage and high-voltage windings.
It achieves good heat dissipation and anti-interference effect, prevents high-temperature damage and ensures the normal operation of the transformer.
Smart Images
Figure CN222281755U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of transformers, in particular to a high-frequency transformer winding structure. Background Art
[0002] A high-frequency transformer is a power transformer with an operating frequency exceeding the medium frequency. It is mainly used as a high-frequency switching power transformer in a high-frequency switching power supply, and is also used as a high-frequency inverter power transformer in a high-frequency inverter power supply and a high-frequency inverter welding machine. The transformer is composed of an iron core and a coil, wherein the coil includes two or more windings, and the utility model provides a winding structure, and the winding structure provided by the application has good heat dissipation and good anti-interference effect between windings. Utility Model Content
[0003] In view of the above-mentioned deficiencies existing in the prior art, the utility model aims to provide a high-frequency transformer winding structure with good heat dissipation effect and reduced interference between low-voltage windings and high-voltage windings.
[0004] The utility model adopts the following technical scheme to achieve the above-mentioned purpose: a high-frequency transformer winding structure, comprising an iron core, a winding shell, a low-voltage winding and a high-voltage winding, wherein the iron core is sleeve-connected in the winding shell, the iron core is formed by twisting a plurality of thin iron wires, the number of the thin iron wires is 10-20, the iron core formed by twisting the thin iron wires can improve the curvature of the iron core, improve the tensile strength of the iron core, and thus adapt to the situation of limited layout space, a low-voltage winding is arranged on the outside of the winding shell, a high-voltage winding is arranged on the outside of the low-voltage winding, a heat dissipation channel is arranged between the low-voltage winding and the high-voltage winding, and the heat dissipation channel can improve the overall heat dissipation effect of the transformer.
[0005] In some of the embodiments, the low-voltage winding consists of an upper low-voltage winding and a lower low-voltage winding, the top of the upper end of the upper low-voltage winding is fixedly connected to a head joint, and the lower end of the lower low-voltage winding is fixedly connected to a tail joint.
[0006] In some of the embodiments, a first insulating layer is provided between the low voltage winding and the winding casing.
[0007] In some of the embodiments, a plurality of isolation plates are provided in the heat dissipation channel between the low-voltage winding and the high-voltage winding, and a second insulating sleeve layer is provided on the outer side of the isolation plates and the inner side of the high-voltage winding.
[0008] In some of the embodiments, a heat-conducting net is embedded and connected in the isolation plate, and a plurality of heat-dissipating through holes are formed on the isolation plate.
[0009] In some of the embodiments, a bias winding is connected to the outside of the high voltage winding.
[0010] The beneficial effects of the utility model are as follows: the transformer winding structure of the device has good conductivity and heat dissipation, which can avoid product damage caused by high temperature. At the same time, a second insulating layer is arranged between the low-voltage winding and the high-voltage winding, which can prevent interference between the low-voltage winding and the high-voltage winding and ensure the normal operation of the transformer. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a schematic diagram of the cross-sectional structure of the utility model;
[0012] Figure 2 for Figure 1 A1 section structure diagram;
[0013] Figure 3 for Figure 1 A2 section structure diagram;
[0014] Figure 4 for Figure 3 A3 detailed structure diagram.
[0015] In the figure: 1 iron core, 2 winding shell, 3 low voltage winding, 4 high voltage winding, 5 heat dissipation channel, 6 head joint, 7 tail joint, 8 first insulating sleeve, 9 isolation plate, 10 second insulating sleeve, 11 heat conductive net, 12 heat dissipation through hole, 13 bias winding, 14 lower low voltage winding, 15 upper low voltage winding. DETAILED DESCRIPTION
[0016] 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.
[0017] See also Figure 1-4The high-frequency transformer winding structure includes an iron core 1, a winding shell 2, a low-voltage winding 3, and a high-voltage winding 4. The iron core 1 is sleeved and connected in the winding shell 2. The iron core 1 is formed by twisting a plurality of thin iron wires. The number of thin iron wires is 10-20. The iron core 1 formed by twisting the thin iron wires can improve the curvature of the iron core 1 and improve the tensile strength of the iron core 1, thereby adapting to the situation of limited layout space. A low-voltage winding 3 is arranged on the outside of the winding shell 2. A first insulating sleeve 8 is arranged between the low-voltage winding 3 and the winding shell 2 to reduce the influence of the iron core 1 on the low-voltage winding 3. The low-voltage winding 3 is composed of an upper low-voltage winding 15 and a lower low-voltage winding 14. The top of the upper end of the upper low-voltage winding 15 is fixedly connected with a head joint 6, and the lower end of the lower low-voltage winding 14 is fixedly connected with a tail joint 7. The outlet side A high-voltage winding 4 is arranged on the outside of the low-voltage winding 3, and a heat dissipation channel 5 is arranged between the low-voltage winding 3 and the high-voltage winding 4. The heat dissipation channel 5 can improve the heat dissipation effect of the transformer as a whole. A plurality of isolation plates 9 are arranged in the heat dissipation channel 5 between the low-voltage winding 3 and the high-voltage winding 4. A second insulating sleeve 10 is arranged on the outside of the isolation plate 9 and the inside of the high-voltage winding 4. The second insulating sleeve 10 can prevent interference between the low-voltage winding 3 and the high-voltage winding 4. A heat-conducting net 11 is embedded and connected in the isolation plate 9, and a plurality of heat dissipation through holes 12 are opened on the isolation plate 9 to further improve the heat dissipation efficiency of the overall structure of the transformer. A bias winding 13 is connected to the outside of the high-voltage winding 4. Both the low-voltage winding 3 and the bias winding 13 are in a spiral structure, and the high-voltage winding 4 is in a tangled structure.
[0018] In the utility model, the first insulating sleeve layer 8 and the second insulating sleeve layer 10 are both made of soft polyvinyl chloride material, which can simplify the processing formula, improve the yield rate, and reduce waste and cost. The device also improves the heat dissipation effect through the heat dissipation channel 5 to prevent structural damage caused by high temperature.
[0019] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
[0020] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A high-frequency transformer winding structure, comprising an iron core (1), a winding casing (2), a low-voltage winding (3), and a high-voltage winding (4), characterized in that: The iron core (1) is sleeve-connected in a winding casing (2); a low-voltage winding (3) is arranged outside the winding casing (2); a high-voltage winding (4) is arranged outside the low-voltage winding (3); and a heat dissipation channel (5) is arranged between the low-voltage winding (3) and the high-voltage winding (4).
2. The high-frequency transformer winding structure according to claim 1, characterized in that: The low-voltage winding (3) consists of an upper low-voltage winding (15) and a lower low-voltage winding (14); the top of the upper end of the upper low-voltage winding (15) is fixedly connected to a head connector (6), and the lower end of the lower low-voltage winding (14) is fixedly connected to a tail connector (7).
3. The high frequency transformer winding structure according to claim 1, characterized in that: A first insulating sleeve layer (8) is provided between the low-voltage winding (3) and the winding casing (2).
4. The high frequency transformer winding structure according to claim 1, characterized in that: A plurality of isolation plates (9) are arranged in the heat dissipation channel (5) between the low-voltage winding (3) and the high-voltage winding (4), and a second insulating sleeve layer (10) is arranged on the outer side of the isolation plate (9) and the inner side of the high-voltage winding (4).
5. The high-frequency transformer winding structure according to claim 4, characterized in that: A heat-conducting net (11) is embedded and connected inside the isolation plate (9), and a plurality of heat-dissipating through holes (12) are provided on the isolation plate (9).
6. The high frequency transformer winding structure according to claim 1, characterized in that: A bias winding (13) is connected to the outside of the high-voltage winding (4).