Differential mode inductive heat dissipation structure

Abstract

The utility model discloses a differential mode inductance heat conduction heat dissipation structure relates to heat dissipation technical field, the utility model discloses a heat dissipation shell is the main support basis of device, the inner ring of heat dissipation shell is provided with the magnetic core body, is equipped with the cavity in the heat dissipation shell inside, still includes the heat dissipation mechanism, the heat dissipation mechanism sets up the outer ring of magnetic core body, the heat dissipation mechanism is used for the heat that the magnetic core body works produces to carry out heat dissipation, wherein, the heat dissipation mechanism includes heat conduction subassembly, the utility model discloses through setting up heat conduction subassembly, specifically is when the heat conduction block clamping magnetic core body, the heat conduction silicone grease layer of its inboard and magnetic core body surface are pasted, and the heat that the magnetic core body works produces is transferred to the heat conduction block through the heat conduction silicone grease layer, and then is conducted to the heat dissipation fin by the heat conduction block, enlargies the air contact area through a plurality of heat dissipation fins, accelerates the heat exchange, and this structure can efficiently lead out the magnetic core body heat, prolongs its service life and use performance.

Description

Technical Field

[0001] This utility model belongs to the field of thermal conductivity and heat dissipation technology, and in particular relates to a differential mode inductor thermal conductivity and heat dissipation structure. Background Technology

[0002] In the operation of electronic devices, differential mode inductors are one of the key components, and their performance and stability play a crucial role in the normal operation of the entire device. However, differential mode inductors inevitably generate heat during operation. Traditional heat dissipation methods for differential mode inductors often have some limitations. For example, some heat dissipation designs rely solely on simple natural heat dissipation or a single heat dissipation structure, resulting in low heat dissipation efficiency. When differential mode inductors are under high load or running for a long time, the heat generated cannot be quickly transferred to the surrounding environment, causing the core body temperature to rise continuously. Excessive temperature not only reduces the magnetic properties of the core material but may also cause problems such as thermal aging and thermal deformation of the core, thereby affecting key parameters such as the inductance value and quality factor of the differential mode inductor. In severe cases, it may even lead to the failure of the differential mode inductor and shorten its service life. To address this, a heat conduction and heat dissipation structure for differential mode inductors is proposed. Utility Model Content

[0003] The purpose of this invention is to provide a differential mode inductor heat conduction and dissipation structure. By setting up a heat conduction component, specifically, when the heat conduction block clamps the magnetic core body, the heat conduction grease layer on its inner side is attached to the surface of the magnetic core body. The heat generated by the magnetic core body during operation is transferred to the heat conduction block through the heat conduction grease layer, and then conducted by the heat conduction block to the heat dissipation fins. Multiple heat dissipation fins increase the air contact area and accelerate heat exchange, solving some limitations of traditional differential mode inductor heat dissipation methods. For example, some heat dissipation designs rely solely on simple natural heat dissipation or a single heat dissipation structure, resulting in low heat dissipation efficiency. When the differential mode inductor is under high load or running for a long time, the heat generated cannot be quickly transferred to the surrounding environment, causing the temperature of the magnetic core body to rise continuously. Excessive temperature not only reduces the magnetic properties of the magnetic core material, but may also cause problems such as thermal aging and thermal deformation of the magnetic core, thereby affecting key parameters such as the inductance value and quality factor of the differential mode inductor. In severe cases, it may even lead to the failure of the differential mode inductor and shorten its service life.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model relates to a differential mode inductor heat conduction and dissipation structure, including a heat sink shell, which serves as the main supporting foundation of the device. A magnetic core body is disposed within the inner ring of the heat sink shell, and a cavity is formed inside the heat sink shell. It also includes:

[0006] A heat dissipation mechanism is disposed on the outer ring of the magnetic core body, and the heat dissipation mechanism is used to conduct heat and dissipate heat generated by the magnetic core body during operation.

[0007] The heat dissipation mechanism includes a heat-conducting component, which includes heat dissipation fins.

[0008] Furthermore, the heat dissipation mechanism also includes:

[0009] A fixing component is connected to a heat sink and is used to fix magnetic core bodies of various diameters.

[0010] An anti-loosening component is provided on the top of the heat sink housing. The anti-loosening component is used to reinforce and prevent loosening after the magnetic core body is fixed.

[0011] Furthermore, the number of heat dissipation fins is several, the outer surface of several heat dissipation fins is slidably connected to the inside of the heat dissipation shell, several heat-conducting blocks are provided in the inner ring of the heat dissipation shell, the side of several heat-conducting blocks that are far apart from each other is connected to the side of the heat dissipation fins that are close to each other, and several thermally conductive silicone grease layers are connected to the side of several heat-conducting blocks that are close to the magnetic core body.

[0012] Several of the heat-conducting blocks and the thermal grease layer are arc-shaped to facilitate their contact with the surface of the magnetic core body.

[0013] Furthermore, the fixing component includes a turntable, which is disposed inside the cavity. The turntable has several arc-shaped grooves inside it. A rotating rod is welded to the temporal part of the turntable, and the rotating rod passes through the cavity and extends to the top of the heat dissipation shell.

[0014] The end of the rotating rod furthest from the turntable has a larger diameter, and this end is designed to prevent slippage.

[0015] Furthermore, the top of the inner wall of the heat dissipation shell is provided with several straight grooves, each of the several straight grooves is in contact with a connecting rod, each of the several connecting rods passes through the straight grooves and extends into the arc-shaped groove, and the outer surface of each of the several connecting rods is in contact with the inner wall of the arc-shaped groove.

[0016] Among them, several of the connecting rods pass through the straight groove and extend to the bottom, and the bottom of several of the connecting rods is connected to the top of the heat-conducting block.

[0017] Furthermore, the anti-loosening component includes a support frame, the bottom of which is welded to the top of the heat sink, the top of which is rotatably connected to the outer surface of the rotating rod through a through hole, and a limit ring is provided inside the support frame, the inside of which is welded to the outer surface of the rotating rod.

[0018] Furthermore, the outer ring of the limiting ring has a limiting ring groove, the inner wall of the limiting ring groove contacts the limiting ball, and a threaded rod is connected to the side of the limiting ball away from the limiting ring groove. The outer surface of the threaded rod is threaded to the right side of the support frame, and the threaded rod passes through the support frame and extends to the right side.

[0019] The end of the threaded rod away from the limiting ball is designed to prevent slippage.

[0020] This utility model has the following beneficial effects:

[0021] 1. This utility model, by setting up a heat-conducting component, specifically, when the heat-conducting block clamps the magnetic core body, the heat-conducting silicone grease layer on its inner side is attached to the surface of the magnetic core body. The heat generated by the magnetic core body during operation is transferred to the heat-conducting block through the heat-conducting silicone grease layer, and then conducted by the heat-conducting block to the heat dissipation fins. The heat dissipation fins increase the air contact area and accelerate heat exchange. This structure can efficiently dissipate the heat of the magnetic core body, extend its service life and performance.

[0022] 2. This utility model sets up a fixing component, specifically by rotating the rotating rod clockwise to drive the turntable to rotate in the cavity. The arc groove on the turntable drives the connecting rod to move closer to each other through the straight groove, thereby pushing the heat-conducting block to clamp the outer ring of the magnetic core body. This structure can adapt to magnetic core bodies of different diameters, realize quick clamping and fixing, reduce the frequency of changing heat dissipation parts due to specification differences, and effectively improve the versatility of the device.

[0023] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the overall structure of the heat-conducting block of this utility model;

[0027] Figure 3 This is a schematic diagram of the cross-sectional structure of the heat dissipation shell of this utility model;

[0028] Figure 4 This utility model Figure 3 A magnified structural diagram of A in the middle;

[0029] Figure 5 This is a schematic diagram of the exploded structure of the fixing component of this utility model.

[0030] The attached diagram lists the components represented by each number as follows:

[0031] 111. Heat sink shell; 112. Magnetic core body; 113. Cavity; 2. Heat dissipation mechanism; 21. Thermal conductive component; 211. Heat dissipation fin; 212. Thermal conductive block; 213. Thermal grease layer; 22. Fixing component; 221. Rotating rod; 222. Turntable; 223. Arc groove; 224. Connecting rod; 225. Straight groove; 23. Anti-loosening component; 231. Support frame; 232. Limiting ring; 233. Limiting ring groove; 234. Limiting ball; 235. Threaded rod. Detailed Implementation

[0032] 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.

[0033] Please see Figures 1-5 As shown, this utility model is a differential mode inductor heat conduction and heat dissipation structure, including a heat sink 111, which serves as the main supporting foundation of the device. A magnetic core body 112 is disposed within the inner ring of the heat sink 111, and a cavity 113 is formed inside the heat sink 111. It also includes:

[0034] Heat dissipation mechanism 2 is disposed on the outer ring of magnetic core body 112. Heat dissipation mechanism 2 is used to conduct heat dissipation to dissipate the heat generated when magnetic core body 112 is working. Heat dissipation mechanism 2 includes heat conduction component 21, which includes heat dissipation fins 211.

[0035] The heat dissipation mechanism 2 also includes:

[0036] Fixing component 22 is connected to heat sink 111 and is used to fix magnetic core body 112 of various diameters;

[0037] Anti-loosening component 23 is disposed on the top of heat sink 111. Anti-loosening component 23 is used to reinforce and prevent loosening after fixing magnetic core body 112.

[0038] The heat dissipation fins 211 are numerous, and their outer surfaces are slidably connected to the interior of the heat sink 111. The inner ring of the heat sink 111 has numerous heat-conducting blocks 212, with the sides of the heat-conducting blocks 212 that are far apart from each other connected to the sides of the heat dissipation fins 211 that are close to each other. Several thermally conductive silicone grease layers 213 are connected to the sides of the heat-conducting blocks 212 that are close to the magnetic core body 112. All the heat-conducting blocks 212 and the thermally conductive silicone grease layers 213 are arc-shaped to facilitate contact with the magnetic core body. When the heat-conducting block 212 clamps the magnetic core body 112, the heat-conducting grease layer 213 on its inner side is attached to the surface of the magnetic core body 112. The heat generated by the magnetic core body 112 during operation is transferred to the heat-conducting block 212 through the heat-conducting grease layer 213, and then conducted to the heat dissipation fins 211 by the heat-conducting block 212. The multiple heat dissipation fins 211 increase the air contact area and accelerate heat exchange. This structure can efficiently dissipate the heat of the magnetic core body 112, extend its service life and performance.

[0039] The fixing component 22 includes a turntable 222, which is disposed inside the cavity 113. The turntable 222 has several arc-shaped grooves 223 inside. A rotating rod 221 is welded to the front of the turntable 222, passing through the cavity 113 and extending to the top of the heat sink 111. The end of the rotating rod 221 away from the turntable 222 has a larger diameter and is designed for anti-slip. Several straight grooves 225 are formed on the top of the inner wall of the heat sink 111. Each of the straight grooves 225 contacts a connecting rod 224, which passes through the straight grooves 225 and extends into the arc-shaped grooves 223. The outer surface of each connecting rod 224 is in contact with the inner wall of the arc groove 223. Several connecting rods 224 pass through the straight groove 225 and extend to the bottom. The bottom of several connecting rods 224 is connected to the top of the heat-conducting block 212. Rotating the rotating rod 221 clockwise drives the turntable 222 to rotate in the cavity 113. The arc groove 223 on the turntable 222 drives the connecting rods 224 to move closer to each other through the straight groove 225, thereby pushing the heat-conducting block 212 to clamp the outer ring of the magnetic core body 112. This structure can adapt to magnetic core bodies 112 of different diameters, realize quick clamping and fixing, reduce the frequency of changing heat dissipation parts due to specification differences, and effectively improve the versatility of the device.

[0040] The anti-loosening component 23 includes a support frame 231. The bottom of the support frame 231 is welded to the top of the heat sink 111. The top of the inside of the support frame 231 is rotatably connected to the outer surface of the rotating rod 221 through a through hole. A limit ring 232 is provided inside the support frame 231. The inside of the limit ring 232 is welded to the outer surface of the rotating rod 221. A limit ring groove 233 is opened on the outer ring of the limit ring 232. The inner wall of the limit ring groove 233 contacts a limit ball 234. A threaded rod 235 is connected to the side of the limit ball 234 away from the limit ring groove 233. The outer surface of the threaded rod 235 is threaded to the right side of the inside of the support frame 231. The threaded rod 235 passes through the support frame 231 and extends to the right side. The end of the threaded rod 235 away from the limit ball 234 is provided with an anti-slip feature.

[0041] A specific application of this embodiment is as follows: In use, firstly, the heat sink 111 is fitted over the magnetic core body 112. Then, the electrodes of the magnetic core body 112 are passed through the front holes of the heat sink 111. Subsequently, the rotating rod 221 is rotated clockwise according to the diameter of the magnetic core body 112, causing the turntable 222 to move. When the turntable 222 moves, it rotates inside the cavity 113. At the same time, during the rotation of the turntable 222, it drives several arc-shaped grooves 223 to move together. During the rotation of the arc-shaped grooves 223, several straight grooves 225 drive several connecting rods 224 to move closer together. At this time, the connecting rods 224 move inside the arc-shaped grooves 223 and the straight grooves 225. At the same time, during the process of the connecting rods 224 moving closer together, several heat-conducting blocks 212 move together. During the process of the heat-conducting blocks 212 moving closer together, they clamp and fix the outer ring of the magnetic core body 112, thereby realizing the multi-... The magnetic core body 112 of different diameters is fixed to reduce the need to replace heat dissipation components due to different diameters of the magnetic core body 112, thereby improving the versatility of the device. After several heat-conducting blocks 212 fix and clamp the magnetic core body 112, the threaded rod 235 is rotated clockwise to move. Since the outer surface of the threaded rod 235 is threadedly connected to the inside of the support frame 231, it will move when the threaded rod 235 is rotated. When the threaded rod 235 is rotated clockwise, the threaded rod 235 will drive the limiting ball 234 to move towards the limiting ring 232. During the movement of the limiting ball 234, it will be embedded in the limiting ring groove 233. At this time, the limiting ring groove 233 will increase the friction of the limiting ring 232 when it rotates through the action of the limiting ball 234, thereby reducing the loosening of the rotating rod 221. At the same time, the rotating rod 221 also reduces the loosening of the clamping force of several heat-conducting blocks 212 on the magnetic core body 112, improving the stability of the device.

[0042] Meanwhile, when several heat-conducting blocks 212 clamp and fix the magnetic core body 112, the thermally conductive silicone grease layer 213 on the corresponding side of the several heat-conducting blocks 212 will come into contact with the surface of the magnetic core body 112. During the subsequent use of the magnetic core body 112, the heat generated is transferred to the heat-conducting blocks 212 through the thermally conductive silicone grease layer 213, and then transferred to the heat dissipation fins 211 for heat dissipation through the heat-conducting blocks 212. By setting multiple heat dissipation fins 211, the contact area between the device and the air is increased, thereby improving the heat dissipation effect of the magnetic core body 112 and extending the service life of the magnetic core body 112. At the same time, when the heat-conducting blocks 212 move through the connecting rod 224, the heat-conducting blocks 212 will move together. During the movement of the heat dissipation fins 211, they will slide inside the heat dissipation shell 111.

[0043] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A differential mode inductor heat dissipation structure, comprising a heat sink (111), wherein the heat sink (111) is the main supporting foundation of the device, a magnetic core body (112) is disposed in the inner ring of the heat sink (111), and a cavity (113) is formed inside the heat sink (111), characterized in that, Also includes: Heat dissipation mechanism (2) is provided on the outer ring of the magnetic core body (112). The heat dissipation mechanism (2) is used to conduct heat and dissipate the heat generated by the magnetic core body (112) when it is working. The heat dissipation mechanism (2) includes a heat-conducting component (21), which includes heat dissipation fins (211).

2. The differential-mode inductor heat dissipation structure according to claim 1, characterized in that, The heat dissipation mechanism (2) also includes: A fixing component (22) is connected to a heat sink (111) and is used to fix magnetic core bodies (112) of various diameters. Anti-loosening component (23) is provided on the top of heat sink (111). The anti-loosening component (23) is used to reinforce and prevent loosening after fixing the magnetic core body (112).

3. The differential-mode inductor heat dissipation structure according to claim 1, characterized in that, The number of heat dissipation fins (211) is several, and the outer surface of several heat dissipation fins (211) is slidably connected to the inside of the heat dissipation shell (111). Several heat-conducting blocks (212) are provided in the inner ring of the heat dissipation shell (111). The side of several heat-conducting blocks (212) that are far away from each other is connected to the side of the heat dissipation fins (211) that are close to each other. Several thermally conductive silicone grease layers (213) are connected to the side of several heat-conducting blocks (212) that are close to the magnetic core body (112). Among them, several of the heat-conducting blocks (212) and the thermal grease layer (213) are arc-shaped to facilitate their contact with the surface of the magnetic core body (112).

4. The differential-mode inductor heat conduction and dissipation structure according to claim 2, characterized in that, The fixing component (22) includes a turntable (222), which is disposed inside the cavity (113). The turntable (222) has several arc-shaped grooves (223) inside. A rotating rod (221) is welded to the temporal part of the turntable (222), which passes through the cavity (113) and extends to the top of the heat sink (111). The end of the rotating rod (221) away from the turntable (222) has a larger diameter, and the end of the rotating rod (221) away from the turntable (222) is designed to prevent slipping.

5. The differential-mode inductor heat dissipation structure according to claim 4, characterized in that, The top of the inner wall of the heat sink (111) is provided with a number of straight grooves (225), and each of the straight grooves (225) is in contact with a connecting rod (224). Each of the connecting rods (224) passes through the straight grooves (225) and extends into the arc groove (223). The outer surface of each of the connecting rods (224) is in contact with the inner wall of the arc groove (223). Among them, several of the connecting rods (224) pass through the straight groove (225) and extend to the bottom, and the bottom of several of the connecting rods (224) is connected to the top of the heat-conducting block (212).

6. The differential-mode inductor heat dissipation structure according to claim 2, characterized in that, The anti-loosening component (23) includes a support frame (231), the bottom of which is welded to the top of the heat sink (111), and the top of the inside of the support frame (231) is rotatably connected to the outer surface of the rotating rod (221) through a through hole. A limit ring (232) is provided inside the support frame (231), and the inside of the limit ring (232) is welded to the outer surface of the rotating rod (221).

7. The differential-mode inductor heat dissipation structure according to claim 6, characterized in that, The outer ring of the limiting ring (232) has a limiting ring groove (233), the inner wall of the limiting ring groove (233) contacts a limiting ball (234), and a threaded rod (235) is connected to the side of the limiting ball (234) away from the limiting ring groove (233). The outer surface of the threaded rod (235) is threaded to the right side of the inside of the support frame (231), and the threaded rod (235) passes through the support frame (231) and extends to the right side. The end of the threaded rod (235) away from the limiting ball (234) is designed to prevent slippage.

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