Miniature transformer framework with good heat insulation property

Abstract

The utility model relates to the technical field of transformer frameworks, in particular to a miniature transformer framework with good heat insulation performance, which comprises a support frame, a through cavity is arranged on the surface of the support frame, radiating fins are arranged on the surface of the support frame, and a first heat-conducting fin and a second heat-conducting fin are fixedly mounted on one side, close to the support frame, of each radiating fin. A buckle is fixedly installed on the face, away from the cooling fin, of the first heat conduction piece, a heat insulation wire groove is fixedly formed in the side face of the supporting frame, and a heat insulation groove is formed in the surface of the supporting frame. According to the utility model, heat generated by the iron core and the coil is effectively guided into the radiating fins through the first heat-conducting fin and the second heat-conducting fin to be quickly dissipated, the heat generated by the iron core is guided into the radiating fins through the first heat-conducting fin, and the heat of the coil is guided into the radiating fins through the second heat-conducting fin; heat generated in the working process of the transformer framework is effectively dissipated, and the problem that the service life of the transformer framework is shortened due to the fact that the temperature in the transformer framework is too high is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer skeletons, in particular to a micro transformer skeleton with good heat insulation. Background Art

[0002] The transformer skeleton is a very important component of the transformer. It mainly supports and fixes the transformer coil, and also provides a space for the transformer's magnetic core. The transformer is a device used to convert AC voltage, current and impedance, and is mainly composed of a magnetic core, a skeleton and a coil winding. Among them, the coil winding has two or more windings, and these windings and the magnetic core are collectively referred to as the power transformer body, which is the circuit part that establishes a magnetic field and transmits electrical energy. Publication number: CN218333430U discloses a micro transformer skeleton, which belongs to the field of transformer technology, including an outer cylinder and end pieces arranged at both ends thereof, a pair of hook pieces are arranged inside the end pieces and the outer cylinder, a core tube is arranged between the hook pieces, hook heads are arranged at the four corners of the hook pieces, an end-middle opening is opened in the center of the end piece, and an end-edge opening is opened at the edge of the end piece, cylinder pieces are arranged at both ends of the outer cylinder, and the edge of the cylinder piece is provided with a cylinder edge protrusion, and a wire groove is opened in the cylinder edge protrusion, and a cylinder cavity is opened in the outer cylinder, and the hook piece and the hook head are connected. A corner hole is opened at the joint, the hook piece and the end piece are made of stainless steel, the positions of the end edge and the tube edge protrusion correspond, the tube edge protrusion is embedded in the end edge, the end piece and the outer tube are made of engineering plastics, and the distance between adjacent hook heads is less than the length of the diagonal of the end center. The micro transformer skeleton has the advantages of simple assembly and high overall structural strength. However, the above-mentioned utility model is made of metal material and has poor thermal insulation effect. The heat generated by the transformer skeleton during operation cannot be effectively isolated or dissipated, resulting in excessively high temperature inside the transformer skeleton. Long-term operation in a high temperature environment will accelerate the aging of the insulating material inside the transformer skeleton and reduce the service life of the transformer skeleton, which needs to be improved. Utility Model Content

[0003] The purpose of the utility model is to solve the technical problems raised in the above background technology.

[0004] The utility model adopts the following technical scheme: a micro transformer skeleton with good thermal insulation, comprising a support frame, a through cavity is opened on the surface of the support frame, a heat sink is arranged on the surface of the support frame, a first heat conductive sheet and a second heat conductive sheet are fixedly installed on a side of the heat sink close to the support frame, a buckle is fixedly installed on a side of the first heat conductive sheet away from the heat sink, a heat insulation wire groove is fixedly opened on the side of the support frame, and a heat insulation groove is opened on the surface of the support frame.

[0005] Preferably, the number of the heat sinks is two groups, the number of the first heat conductive sheets and buckles is four groups, and the number of the second heat conductive sheets is eight groups. Here, the four groups of first heat conductive sheets introduce the heat of the iron core into the two groups of heat sinks, and the eight groups of second heat conductive sheets introduce the heat of the coil into the heat sink. The heat of the iron core and the coil is introduced into the heat sink together, effectively dissipating the heat generated during the operation of the transformer skeleton, avoiding excessively high temperature inside the transformer skeleton, which reduces the service life of the transformer skeleton.

[0006] Preferably, the side of the heat insulation groove passes through the support frame. Here, when installing, the second heat conductive sheet is slid into the heat insulation groove, and most of the heat generated by the coil is introduced into the heat sink from the second heat conductive sheet, effectively dissipating the heat generated during the operation of the transformer skeleton, avoiding excessive temperature inside the transformer skeleton, which reduces the service life of the transformer skeleton.

[0007] Preferably, the first thermal conductive sheet and the second thermal conductive sheet are both made of thermal conductive silicone sheets. Here, thermal conductive silicone sheets are a high-performance gap-filling thermal conductive material, mainly used for the transfer interface between electronic equipment and heat sinks or product shells. This material has good thermal conductivity and insulation, which can dissipate heat while preventing the transformer skeleton from causing a short circuit when it contacts other conductive parts of the transformer.

[0008] Preferably, the number of the heat-insulating wire grooves is thirty-two groups, the number of the heat-insulating grooves is four groups, and the heat-insulating wire grooves are symmetrically distributed on both sides of the support frame, and the positions of the heat-insulating grooves correspond to the positions of the second heat-conducting sheet. Here, the heat-insulating grooves and the second heat-conducting sheet are connected to each other, and most of the heat of the coil can be introduced into the second heat-conducting sheet, so as to avoid the coil being too stable and affecting the working efficiency of the transformer skeleton, thereby affecting the working efficiency of the transformer.

[0009] Preferably, a spring is fixedly installed on one side of the support frame close to the heat-insulating wire groove, a pressing rod is fixedly installed on one side of the spring away from the heat sink, and a limiting rod is fixedly installed on one side of the pressing rod away from the spring. Here, the wire harness is firmly fixed in the limiting groove by providing the spring, the pressing rod and the limiting rod, so as to prevent the wire harness from falling off and contacting the heat sink, causing the insulating material outside the wire harness to melt, thereby reducing the working efficiency of the transformer.

[0010] Preferably, the pressing rod and the limiting rod are slidably connected to the support frame. Here, the wire harness can be put into the heat-insulating wire groove by pressing the pressing rod. After releasing the pressing rod, the spring drives the pressing rod to push the limiting rod into the heat-insulating wire groove to limit the wire harness. When the wire harness needs to be replaced, the pressing rod can be pressed to easily take out the wire harness. The operation is convenient and quick, the wire harness can be effectively limited in the heat-insulating wire groove, and the wire harness can be easily replaced.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] 1. In the utility model, by arranging a heat sink, a first heat conductive sheet and a second heat conductive sheet, the heat generated by the iron core and the coil is effectively introduced into the heat sink for rapid dissipation. The first heat conductive sheet introduces the heat generated by the iron core into the heat sink, and the second heat conductive sheet introduces the heat generated by the coil into the heat sink, thereby effectively dissipating the heat generated during the operation of the transformer skeleton, thereby avoiding the problem of excessively high temperature inside the transformer skeleton, which leads to a reduced service life of the transformer skeleton.

[0013] 2. In the utility model, the wiring harness is firmly fixed in the heat-insulating wire trough by arranging springs, pressing rods and limiting rods, so as to prevent the wiring harness from falling off and the temperature of the heat sink from being too high, causing the insulating material of the outer layer of the wiring harness to melt, thereby affecting the working effect of the transformer skeleton. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of a micro transformer skeleton with good thermal insulation is provided for the utility model;

[0015] Figure 2 A schematic diagram of a micro transformer skeleton main structure and a heat dissipation structure with good thermal insulation is provided for the utility model;

[0016] Figure 3 The utility model proposes a micro transformer frame with good thermal insulation Figure 2 Enlarged view of point A in the middle;

[0017] Figure 4 The utility model provides a cross-sectional view of a support frame of a micro transformer skeleton with good thermal insulation.

[0018] Legend:

[0019] 1. Support frame; 2. Through cavity; 3. Heat sink; 4. First heat conducting plate; 5. Second heat conducting plate; 6. Buckle; 7. Heat insulation wire groove; 8. Heat insulation groove; 9. Spring; 10. Press rod; 11. Limit rod. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0022] Embodiment 1

[0023] See also Figure 1-2 The utility model provides a technical solution: a micro transformer skeleton with good thermal insulation, comprising a support frame 1, a through cavity 2 is provided on the surface of the support frame 1, a heat sink 3 is arranged on the surface of the support frame 1, a first heat conductive sheet 4 and a second heat conductive sheet 5 are fixedly installed on a side of the heat sink 3 close to the support frame 1, a buckle 6 is fixedly installed on a side of the first heat conductive sheet 4 away from the heat sink 3, a heat insulating wire groove 7 is fixedly provided on the side of the support frame 1, a heat insulating groove 8 is provided on the surface of the support frame 1, the number of the heat sink 3 is two groups, the number of the first heat conductive sheet 4 and the buckle 6 is four groups, the number of the second heat conductive sheet 5 is eight groups, the four groups of the first heat conductive sheet 4 introduce the heat of the iron core into the two groups of heat sinks 3, the eight groups of the second heat conductive sheet 5 introduce the heat of the coil into the heat sink 3, the heat of the iron core and the coil is introduced into the heat sink 3 together, the heat generated during the operation of the transformer skeleton is effectively dissipated, the temperature inside the transformer skeleton is prevented from being too high, resulting in a reduction in the service life of the transformer skeleton, the side of the heat insulating groove 8 passes through the support frame 1, and the second heat conductive sheet 5 is slid into the heat insulating groove during installation. 8, most of the heat generated by the coil is introduced into the heat sink 3 from the second heat conductive sheet 5, effectively dissipating the heat generated during the operation of the transformer skeleton, avoiding excessively high temperatures inside the transformer skeleton, resulting in a reduction in the service life of the transformer skeleton, the first heat conductive sheet 4 and the second heat conductive sheet 5 are both made of thermal conductive silicone sheets, which are a high-performance gap-filling thermal conductive material, mainly used for the transfer interface between electronic equipment and the heat sink 3 or the product shell, and this material has good thermal conductivity and insulation, which can dissipate heat while preventing the transformer skeleton from causing a short circuit when it contacts other conductive parts of the transformer, the number of thermal insulation grooves 7 is thirty-two groups, the number of thermal insulation grooves 8 is four groups, and the thermal insulation grooves 7 are symmetrically distributed on both sides of the support frame 1, the position of the thermal insulation grooves 8 corresponds to the position of the second heat conductive sheet 5, and the thermal insulation grooves 8 are interconnected with the second heat conductive sheet 5, which can introduce most of the heat of the coil into the second heat conductive sheet 5, avoiding excessive stability of the coil affecting the working efficiency of the transformer skeleton, thereby affecting the working efficiency of the transformer.

[0024] Embodiment 2

[0025] See also Figure 4A spring 9 is fixedly installed on one side of the support frame 1 close to the heat-insulating wire groove 7, a pressing rod 10 is fixedly installed on one side of the spring 9 away from the heat sink 3, and a limiting rod 11 is fixedly installed on one side of the pressing rod 10 away from the spring 9. Here, the wire harness is firmly fixed in the limiting groove by setting the spring 9, the pressing rod 10 and the limiting rod 11 to prevent the wire harness from falling off and contacting the heat sink 3, causing the insulating material outside the wire harness to be melted, thereby reducing the working efficiency of the transformer. The pressing rod 10 and the limiting rod 11 are slidably connected to the support frame 1. The wire harness can be put into the heat-insulating wire groove 7 by pressing the pressing rod 10. After releasing the hand, the spring 9 drives the pressing rod 10 to push the limiting rod 11 into the heat-insulating wire groove 7 to limit the wire harness. When the wire harness needs to be replaced, the pressing rod 10 can also be pressed to easily remove the wire harness. The operation is convenient and quick, and the wire harness is effectively limited in the heat-insulating wire groove 7, and the wire harness can be easily replaced.

[0026] Working principle: When assembling the transformer skeleton, first align the first heat conducting sheet 4 with the through cavity 2, and align the second heat conducting sheet 5 with the insulation groove 8, then put the first heat conducting sheet 4 and the second heat conducting sheet 5 into it and push them to the bottom, then push the first heat conducting sheet 4 and the second heat conducting sheet 5 on the other side into the through cavity 2 and the insulation groove 8, then press the two sets of heat sinks 3 inwardly to make the buckles 6 snap together, thus completing the installation of the heat dissipation structure, after installing the coil and the iron core, press the pressing rod 10, and then the pressing rod 10 drives the spring 9 to squeeze the limit rod 11 inwardly and also moves in the direction of the spring 9, then put the connected wiring harness into the insulation wire groove 7 to complete the installation of the transformer skeleton.

[0027] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A micro transformer skeleton with good thermal insulation, comprising a support frame (1), characterized in that: The surface of the support frame (1) is provided with a through cavity (2), the surface of the support frame (1) is provided with a heat sink (3), a first heat conducting plate (4) and a second heat conducting plate (5) are fixedly mounted on a side of the heat sink (3) close to the support frame (1), a buckle (6) is fixedly mounted on a side of the first heat conducting plate (4) away from the heat sink (3), a heat insulating wire groove (7) is fixedly mounted on a side of the support frame (1), and a heat insulating groove (8) is mounted on the surface of the support frame (1).

2. The micro transformer skeleton with good thermal insulation according to claim 1 is characterized in that: The number of the heat sinks (3) is two groups, the number of the first heat conducting sheets (4) and the buckles (6) is four groups, and the number of the second heat conducting sheets (5) is eight groups.

3. The micro transformer skeleton with good thermal insulation according to claim 1 is characterized in that: The side surface of the heat insulation groove (8) passes through the support frame (1).

4. The micro transformer skeleton with good thermal insulation according to claim 1 is characterized in that: The first heat conducting sheet (4) and the second heat conducting sheet (5) are both made of heat conducting silicone sheets.

5. The micro transformer skeleton with good thermal insulation according to claim 1 is characterized in that: The number of the heat-insulating grooves (7) is thirty-two groups, the number of the heat-insulating grooves (8) is four groups, and the heat-insulating grooves (7) are symmetrically distributed on both sides of the support frame (1), and the positions of the heat-insulating grooves (8) correspond to the positions of the second heat-conducting plates (5).

6. The micro transformer skeleton with good thermal insulation according to claim 1, characterized in that: A spring (9) is fixedly mounted on a side of the support frame (1) close to the heat-insulating wire groove (7), a pressing rod (10) is fixedly mounted on a side of the spring (9) away from the heat sink (3), and a limiting rod (11) is fixedly mounted on a side of the pressing rod (10) away from the spring (9).

7. The micro transformer skeleton with good thermal insulation according to claim 6 is characterized in that: The pressing rod (10) and the limiting rod (11) are slidably connected to the support frame (1).

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