High-insulation transformer

Abstract

The utility model discloses a high insulation transformer which comprises a transformer body and an insulation base, the transformer body comprises a magnetic core and a coil, the coil is wound on the magnetic core, and the head end and the tail end of the coil extend to form connecting ends; the insulating base comprises an insulating bearing plate, the transformer body is placed on the insulating bearing plate, an insulating protruding part is arranged on the side face, away from the magnetic core, of the insulating bearing plate, and the free end of the insulating protruding part extends in the direction away from the magnetic core; the connecting ends of the head end and the tail end of the coil sequentially penetrate through the bearing plate and the insulating protruding parts respectively, and PINs are formed on the side faces, away from the magnetic core, of the insulating protruding parts. Thus, the creepage distance between the PINs and the magnetic core can be increased through the insulation protruding parts, the safety distance is increased to meet the requirement for the safety distance, insulation damage is avoided, and the high insulation effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, and in particular to a high-insulation transformer. Background Technology

[0002] With the rapid development of modern power electronics technology, transformers are increasingly widely used. Taking high-frequency transformers as an example, existing high-frequency transformers not only need to withstand the impact of high voltage and large current, but also need to operate stably at high frequencies. Therefore, extremely high requirements are placed on the insulation performance of high-frequency transformers. However, current high-frequency transformer designs suffer from insufficient safety clearances, making it difficult to meet the required safety standards. For example, the distance between the pins (leads) and the core of a high-frequency transformer is usually too short, meaning the creepage distance between the pins and the core is too short. This leads to insufficient safety clearances in the transformer design, and in severe cases, can cause insulation damage and safety risks. In addition to insufficient safety clearances, current high-frequency transformer designs also suffer from excessively high temperatures, which limits the power output of high-frequency transformers. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a high-insulation transformer, thereby increasing the creepage distance between the transformer pins and the magnetic core, and thus ensuring that the transformer meets the required safety regulations.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A high-insulation transformer includes: a transformer body and an insulating base. The transformer body includes a magnetic core and a coil, the coil being wound around the magnetic core, and the beginning and end ends of the coil extending to form connecting ends. The insulating base includes an insulating support plate, the transformer body being placed on the insulating support plate, and an insulating protrusion being provided on the side of the insulating support plate away from the magnetic core, with the free end of the insulating protrusion extending away from the magnetic core. The connecting ends of the beginning and end ends of the coil respectively pass through the support plate and the insulating protrusion, and a pin is formed on the side of the insulating protrusion away from the magnetic core.

[0006] In one embodiment, the insulating protrusion is provided with a plurality of ventilation and heat dissipation grooves, each of which is arranged around the periphery of the insulating support plate.

[0007] In one embodiment, the depth of the ventilation and heat dissipation groove is equal to or greater than the height of the insulating protrusion.

[0008] In one embodiment, the insulating base is a plastic base.

[0009] In one embodiment, multiple sets of the magnetic core and the coil are provided.

[0010] In one embodiment, the magnetic core includes a left half magnetic core and a right half magnetic core. A left winding post is provided on the left half magnetic core, and a right winding post is provided on the right half magnetic core. The left winding post and the right winding post are combined and connected to form a winding center post, and the coil is wound on the winding center post.

[0011] Compared with the prior art, the present invention has at least the following advantages:

[0012] This utility model of a high-insulation transformer ensures the insulation effect of the transformer by setting up a transformer body and an insulating base, with the transformer body placed on the insulating base. Specifically, the transformer body is placed on an insulating support plate, and an insulating protrusion is set on the side of the insulating support plate away from the magnetic core. At the same time, the connection end of the coil passes through the support plate and the insulating protrusion to form a pin. In this way, the creepage distance between the pin and the magnetic core can be increased by the insulating protrusion, thereby increasing the safety distance to meet the safety distance requirements, avoiding insulation damage, and achieving a high insulation effect. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly described below.

[0014] Figure 1 This is a schematic diagram of the structure of a high-insulation transformer according to one embodiment of the present invention;

[0015] Figure 2 This is a schematic diagram of the structure of a high-insulation transformer (with one coil removed) according to one embodiment of the present invention; Detailed Implementation

[0016] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be given below with reference to the accompanying drawings.

[0017] Please see Figure 1 and Figure 2As shown, a high-insulation transformer 10 includes: a transformer body 100 and an insulating base 200. The transformer body 100 includes a magnetic core 110 and a coil 120. The coil 120 is wound on the magnetic core 110, and the beginning and end ends of the coil 120 extend to form connecting ends. The insulating base 200 includes an insulating support plate 210. The transformer body 100 is placed on the insulating support plate 210, and an insulating protrusion 220 is provided on the side of the insulating support plate 210 away from the magnetic core 110. The free end of the insulating protrusion 220 extends in a direction away from the magnetic core 110. The connecting ends of the beginning and end ends of the coil 120 pass through the support plate and the insulating protrusion 220 in sequence, and a pin 121 is formed on the side of the insulating protrusion 220 away from the magnetic core 110.

[0018] It should be noted that placing the transformer body 100 on the insulating base 200 ensures the insulation effect of the transformer. Specifically, the transformer body 100 is placed on the insulating support plate 210, and an insulating protrusion 220 is provided on the side of the insulating support plate 210 away from the magnetic core 110. Simultaneously, the connection end of the coil 120 passes through the support plate and the insulating protrusion 220 to form a pin 121. In this way, the creepage distance between the pin 121 and the magnetic core 110 is increased by the insulating protrusion 220, thereby increasing the safety distance to meet safety requirements, preventing insulation damage, and achieving a high insulation effect. Preferably, the insulating base 200 is a plastic base. It should also be noted that the connection ends of the coil 120 are located on both sides of the coil 120, and correspondingly, the formed pins 121 are also located on both sides of the insulating base 200, facilitating the bonding connection of the transformer with other components.

[0019] Furthermore, current high-frequency transformer designs suffer from insufficient safety clearances and excessively high temperatures, hindering power output. Therefore, in one embodiment, the insulating protrusion 220 is provided with multiple ventilation and heat dissipation slots 221, each surrounding the insulating support plate 210. That is, the insulating protrusion 220 does not completely seal around the insulating support plate 210; instead, it incorporates multiple ventilation and heat dissipation slots 221. This allows each pin 121 to use a separate insulating protrusion 220, minimizing its volume and ensuring the bottom of the insulating base 200 is ventilated on all four sides. This improves heat dissipation, reduces the impact of excessive high-frequency transformer temperature on operation, and also increases the power output of the high-frequency transformer to some extent.

[0020] Furthermore, preferably, the depth of the ventilation and heat dissipation groove 221 is equal to or greater than the height of the insulating protrusion 220. This maximizes the ventilation and heat dissipation effect and improves ventilation and heat dissipation efficiency.

[0021] Preferably, multiple sets of magnetic core 110 and coil 120 are provided. For example, three sets of magnetic core 110 and coil 120 are provided.

[0022] Please see Figure 2 As shown, in one embodiment, the magnetic core 110 includes a left half magnetic core 111 and a right half magnetic core 112. A left winding post is disposed on the left half magnetic core 111, and a right winding post is disposed on the right half magnetic core 112. The left and right winding posts are combined and connected to form a winding center post, and the coil 120 is wound around the winding center post. Thus, by designing the magnetic core 110 as two halves, not only is the processing of the magnetic core 110 easier, but the assembly of the coil 120 is also easier, improving production efficiency and ensuring the stability of the coil 120 installation.

[0023] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A high insulation transformer, characterized by, The utility model relates to a transformer base, comprising: a transformer body, the transformer body includes magnetic core and coil, the coil is wound on the magnetic core, and the both ends of the coil are prolonged to form connecting ends; and an insulating base, the transformer body is placed on the insulating bearing plate, and the insulating bearing plate is provided with an insulating protruding part on the side away from the magnetic core, and the free end of the insulating protruding part extends away from the magnetic core; the both ends of the coil are connected with the bearing plate and the insulating protruding part in sequence, and PIN pins are formed on the side of the insulating protruding part away from the magnetic core; a plurality of ventilation and heat dissipation grooves are formed on the insulating protruding part, and each ventilation and heat dissipation groove is arranged around the periphery of the insulating bearing plate.

2. The high insulation transformer according to claim 1, characterized in that, The depth of the ventilation and heat dissipation groove is equal to or greater than the height of the insulating protruding part.

3. The high insulation transformer of claim 1, wherein, The insulating base is a plastic base.

4. The high insulation transformer of claim 1, wherein, The magnetic core and the coil are provided with multiple groups.

5. The high insulation transformer of claim 1, wherein, The magnetic core includes a left half magnetic core and a right half magnetic core, the left half magnetic core is provided with a left winding column, the right half magnetic core is provided with a right winding column, the left winding column and the right winding column are combined to form a winding middle column, and the coil is wound on the winding middle column.

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