A high-permeability heat-dissipation transformer structure based on a top double-sided notched magnetic core

Abstract

The utility model discloses a kind of high-permeability heat dissipation transformer structures based on top double-sided notched magnetic core, it is related to high-frequency transformer heat dissipation technical field, including magnetic core assembly, the magnetic core assembly includes two symmetrical distribution magnetic core body, each magnetic core body top two sides symmetry is provided with magnetic core notch, the present application is provided with magnetic core notch by magnetic core body top two sides symmetry, the design of magnetic core notch, for heat-conducting adhesive provides direct and smooth inflow passage, compared with traditional magnetic core structure, substantially shorten the path of heat-conducting adhesive to reach winding and magnetic core key position, so that heat-conducting adhesive can more easily, more quickly flow into transformer interior, effectively improve the penetration efficiency, the present transformer product, by being provided with magnetic core notch of specific structure in magnetic core body top two sides, realize the improvement of heat-conducting adhesive penetration performance, without substantially modifying the overall structure of magnetic core, production cost is low, convenient in actual production Promotion application.

Description

Technical Field

[0001] This utility model relates to the field of high-frequency transformer heat dissipation technology, specifically a high-permeability heat dissipation transformer structure based on a top double-sided slotted magnetic core. Background Technology

[0002] The application of high-frequency transformers in electronic devices is becoming increasingly widespread. As electronic devices develop towards miniaturization and higher performance, the power density of high-frequency transformers continues to increase, leading to a sharp increase in the heat generated by the core and windings during operation. If this heat cannot be dissipated in time, it will cause a decline in core performance and aging of winding insulation, severely affecting the service life and reliability of the high-frequency transformer.

[0003] A high-frequency transformer consists of magnetic cores on both sides, a frame, and windings wound on the frame.

[0004] In existing technologies, a common method for heat dissipation in high-frequency transformers is to apply thermally conductive adhesive. However, the core structure of current high-frequency transformers presents several problems during the application of this adhesive. Firstly, the narrow and complex space between the core and windings hinders the smooth flow of the adhesive, leading to uneven penetration and ineffective filling of some areas, thus affecting heat dissipation. Secondly, the lack of a specific guiding structure makes it easy for air bubbles to form during the application process, further reducing the adhesive's penetration rate and heat dissipation efficiency. To address these issues, improvements to the core structure are urgently needed to enhance the penetration of the thermally conductive adhesive and improve the heat dissipation performance of the high-frequency transformer.

[0005] Therefore, this utility model proposes a high-permeability heat dissipation transformer structure based on a top double-side slotted magnetic core. Utility Model Content

[0006] The purpose of this invention is to provide a high-permeability heat dissipation transformer structure based on a top double-slotted magnetic core, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-permeability heat dissipation transformer structure based on a top-double-slotted magnetic core, comprising a magnetic core assembly, wherein the magnetic core assembly comprises two symmetrically distributed magnetic core bodies, each magnetic core body having symmetrically opened magnetic core slots on both sides of its top, the magnetic core slots extending along the length direction of the magnetic core body, and the cross-section of the magnetic core slots being trapezoidal; a frame is provided between the two magnetic core bodies, and winding assemblies are symmetrically wound at both ends of the frame;

[0008] Preferably, the depth of the core slot is one-quarter of the height of the core body.

[0009] Preferably, the winding assembly includes multiple layers of winding coils, and a slotted gap is provided between two adjacent layers of winding coils; the slotted gap is used to inject thermally conductive adhesive.

[0010] Preferably, the two symmetrical magnetic core bodies adopt an EE-type structure.

[0011] Preferably, a flow guide groove is provided inside the slot of the magnetic core, and the flow guide groove is used for the flow of thermally conductive adhesive.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] Optimized thermal adhesive penetration path: The magnetic core body has symmetrical slots on both sides of the top. The design of the slots provides a direct and smooth flow channel for the thermal adhesive. Compared with the traditional magnetic core structure, it greatly shortens the path for the thermal adhesive to reach the winding and key parts of the magnetic core, making it easier and faster for the thermal adhesive to flow into the transformer, effectively improving the penetration efficiency.

[0014] Improved penetration uniformity: The trapezoidal cross-section of the core slot allows the thermally conductive adhesive to diffuse evenly into the core body during flow, avoiding localized poor heat dissipation caused by uneven penetration. This ensures that all parts of the core body and winding assembly are fully filled with thermally conductive adhesive, significantly improving overall heat dissipation performance.

[0015] Reduced air bubble formation: The design of the flow guide groove at the core slot helps the vacuum equipment to quickly extract air bubbles from the thermally conductive adhesive injected into this transformer product, further improving work efficiency and saving time.

[0016] This transformer product improves the penetration performance of thermally conductive adhesive by opening specially structured magnetic core slots on both sides of the top of the magnetic core body. It does not require major modifications to the overall structure of the magnetic core, resulting in low production costs and easy application in actual production. Attached Figure Description

[0017] Figure 1 This is an overall structural diagram of the present invention;

[0018] Figure 2 This is an exploded view of the entire utility model;

[0019] Figure 3 This is a view of the magnetic core structure of this utility model.

[0020] In the picture:

[0021] 01. Core body; 02. Frame; 03. Winding assembly; 04. Core slot. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1 to 3 This utility model provides a technical solution:

[0024] A high-permeability heat dissipation transformer structure based on a top-dual-slotted magnetic core includes a magnetic core assembly. The magnetic core assembly comprises two symmetrically distributed magnetic core bodies 01. Each magnetic core body 01 has symmetrically formed magnetic core slots 04 on both sides of its top. The magnetic core slots 04 extend along the length of the magnetic core body 01, and their cross-section is trapezoidal. A frame 02 is disposed between the two magnetic core bodies 01, and winding assemblies 03 are symmetrically wound around both ends of the frame 02. The symmetrically formed magnetic core slots 04 on both sides of the top of the magnetic core bodies 01 provide a direct and smooth inflow channel for thermally conductive adhesive. Compared to traditional magnetic core structures, this significantly shortens the path for the thermally conductive adhesive to reach the windings and key parts of the magnetic core, allowing the thermally conductive adhesive to flow into the transformer more easily and quickly, effectively improving penetration efficiency.

[0025] The trapezoidal cross-section of the magnetic core slot 04 allows the thermally conductive adhesive to diffuse evenly into the magnetic core body 01 during the flow process, avoiding local heat dissipation problems caused by uneven penetration. This ensures that all parts of the magnetic core body 01 and the winding assembly 03 are fully filled with thermally conductive adhesive, significantly improving the overall heat dissipation performance.

[0026] As one embodiment of this utility model, as shown in the figure, the depth of the magnetic core slot 04 is one-quarter of the height of the magnetic core body 01.

[0027] During operation, the depth of the core slot 04 is one-quarter of the height of the core body 01. This depth setting ensures that the core slot 04 can effectively guide the thermal conductive adhesive without excessively weakening the structural strength of the core body 01, making it more practical and with more stable performance.

[0028] As one embodiment of this utility model, as shown in the figure, the winding assembly 03 includes multiple layers of winding coils, and a slotted gap is provided between two adjacent layers of winding coils; the slotted gap is used to inject thermally conductive adhesive.

[0029] The two symmetrical magnetic core bodies 01 adopt an EE-type structure.

[0030] During operation, the magnetic core body 01 of the magnetic core assembly adopts a common EE type structure, which is convenient for the final assembly into a transformer product. It also facilitates the procurement of this structure, as it does not require special manufacturing of this structure, resulting in good economic efficiency and high practicality.

[0031] As one embodiment of this utility model, as shown in the figure, a flow guide groove is provided in the magnetic core slot 04, and the flow guide groove is used for the flow of thermally conductive adhesive.

[0032] During operation, the design of the flow guide groove at the core slot 04 helps the vacuum equipment to quickly extract air bubbles from the thermally conductive adhesive injected into this transformer product, further improving work efficiency and saving time.

[0033] Using this transformer product, under the same working conditions and with the same amount of thermally conductive adhesive, the penetration rate of the thermally conductive adhesive is significantly improved compared to the traditional transformer structure, the maximum operating temperature of the transformer is effectively reduced, and the heat dissipation performance and service life of the transformer are improved.

[0034] This transformer product improves the penetration performance of thermally conductive adhesive by opening magnetic core slots 04 with a specific structure on both sides of the top of the magnetic core body 01. It does not require major modifications to the overall structure of the magnetic core, resulting in low production costs and easy application in actual production.

[0035] Working principle: During operation, the winding assembly 03 is first wound on the bobbin 02, and then two symmetrical magnetic core bodies 01 are installed at both ends of the bobbin 02 to assemble a transformer product. The entire transformer product is then placed into a special packaging fixture, and thermally conductive adhesive is injected into the transformer product through an adhesive injection device. Due to the guiding effect of the magnetic core slot 04 at the top of the magnetic core body 01, the thermally conductive adhesive can quickly flow into the interior of the transformer product along the magnetic core slot 04, and diffuse to the surroundings through the gaps between the multiple windings of the winding assembly 03, ensuring that the thermally conductive adhesive can evenly fill all the gaps between the magnetic core body 01, the bobbin 02 and the winding assembly 03.

[0036] The magnetic core body 01 has symmetrical magnetic core slots 04 on both sides of the top. The design of the magnetic core slots 04 provides a direct and smooth flow channel for the thermal conductive adhesive. Compared with the traditional magnetic core structure, it greatly shortens the path for the thermal conductive adhesive to reach the winding and key parts of the magnetic core, making it easier and faster for the thermal conductive adhesive to flow into the transformer, effectively improving the penetration efficiency.

[0037] The trapezoidal cross-section of the magnetic core slot 04 allows the thermally conductive adhesive to diffuse evenly into the magnetic core body 01 during the flow process, avoiding local heat dissipation problems caused by uneven penetration. This ensures that all parts of the magnetic core body 01 and the winding assembly 03 are fully filled with thermally conductive adhesive, significantly improving the overall heat dissipation performance.

[0038] The magnetic core body 01 of the magnetic core assembly adopts the common EE type structure, which is convenient for the final assembly into transformer products and facilitates the procurement of this structure. It does not require special manufacturing of this structure, which is economical and highly practical.

[0039] The design of the flow guide groove at the core slot 04 helps the vacuum equipment to quickly extract air bubbles from the thermally conductive adhesive injected into this transformer product, further improving work efficiency and saving time.

[0040] The design of the core slot 04 having a depth that is one-quarter of the height of the core body 01 ensures that the core slot 04 can effectively guide the thermal conductive adhesive without excessively weakening the structural strength of the core body 01, making it more practical and with more stable performance.

[0041] Using this transformer product, under the same working conditions and with the same amount of thermally conductive adhesive, the penetration rate of the thermally conductive adhesive is significantly improved compared to the traditional transformer structure, the maximum operating temperature of the transformer is effectively reduced, and the heat dissipation performance and service life of the transformer are improved.

[0042] This transformer product improves the penetration performance of thermally conductive adhesive by opening magnetic core slots 04 with a specific structure on both sides of the top of the magnetic core body 01. It does not require major modifications to the overall structure of the magnetic core, resulting in low production costs and easy application in actual production.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-permeability heat dissipation transformer structure based on a top-double-slotted magnetic core, comprising a magnetic core assembly, characterized in that: The magnetic core assembly includes two symmetrically distributed magnetic core bodies (01). Each magnetic core body (01) has magnetic core slots (04) symmetrically opened on both sides of its top. The magnetic core slots (04) extend along the length direction of the magnetic core body (01), and the cross-section of the magnetic core slots (04) is trapezoidal. A frame (02) is provided between the two magnetic core bodies (01), and winding assemblies (03) are symmetrically wound at both ends of the frame (02).

2. The high-permeability heat dissipation transformer structure based on a top-double-slotted magnetic core according to claim 1, characterized in that: The depth of the core slot (04) is one-quarter of the height of the core body (01).

3. The high-permeability heat dissipation transformer structure based on a top-double-slotted magnetic core according to claim 1, characterized in that: The winding assembly (03) includes multiple layers of winding coils, and a slotted gap is provided between two adjacent layers of winding coils; the slotted gap is used to inject thermally conductive adhesive.

4. The high-permeability heat dissipation transformer structure based on a top-double-slotted magnetic core according to claim 1, characterized in that: The two symmetrical magnetic core bodies (01) adopt an EE type structure.

5. The high-permeability heat dissipation transformer structure based on a top-double-slotted magnetic core according to claim 1, characterized in that: A flow channel is provided inside the magnetic core slot (04), which is used for the flow of thermally conductive adhesive.

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