I-shaped inductor with good heat dissipation effect

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By introducing heat dissipation design of heat dissipation fins and arc-shaped sawtooth structures into the I-shaped inductor, the problem of difficulty in dissipating thermal energy of the inductor is solved, the heat dissipation efficiency is improved, the risk of excessive temperature is avoided, and the stability of the inductor is ensured Sex and safety.

CN222319919UActive Publication Date: 2025-01-07GUANGZHOU HUACHUANG ZHONGYING TECHNOLOGY CO LTD

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Patent Information

Application Number: CN202421197776.2
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-05-29
Publication Date: 2025-01-07
Estimated Expiration: 2034-05-29

AI Technical Summary

Technical Problem

The thermal energy cannot be discharged quickly during use during use, resulting in excessive temperature, affecting its characteristic parameters and possibly causing damage.

Method used

A magnetic core with a cross-sectional shape is designed, with a coil wound in the core and connected to the pin. A shield cover and a heat dissipation fin are provided on the outer peripheral wall. The heat dissipation plate can be detachably connected to the top of the shield cover and the heat dissipation fins. In contact with the coil and increase the contact area through the arc-shaped sawtooth structure, the connecting rod and limit ring fix the heat dissipation plate and fins, expand the heat dissipation area and improve the heat dissipation efficiency.

Benefits of technology

Through the design of the heat dissipation fins and heat dissipation plate, the heat generated by the magnetic core is effectively dissipated, the problem of excessive temperature is avoided, the heat dissipation effect is enhanced, and the stability of the inductor and the safety of long-term use is ensured.

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Abstract

The utility model discloses an I-shaped inductor with a good heat dissipation effect, which relates to the technical field of inductors, and adopts the technical scheme that the I-shaped inductor comprises a magnetic core with an I-shaped cross section, two pins are arranged at the bottom end of the magnetic core, a coil is wound on the middle section of the magnetic core, and the two pins are arranged on the bottom end of the magnetic core. The two ends of the coil penetrate through the magnetic core and are connected with the two pins respectively, the peripheral wall of the magnetic core is sleeved with a shielding cover, a plurality of heat dissipation fins penetrating through the shielding cover are distributed on the peripheral wall of the shielding cover in an annular array mode, the shielding cover is detachably connected with the heat dissipation fins through a heat dissipation plate, and the heat dissipation plate is fixedly connected with the magnetic core. The heat dissipation plate is detachably connected to the top end of the shielding cover. According to the utility model, the heat dissipation structure is arranged, so that the heat generated by the inductor can be quickly dissipated when the inductor operates, and the temperature of the inductor is prevented from being too high for a long time.

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Description

Technical Field

[0001] The utility model relates to the technical field of inductors, and more specifically, it relates to an I-shaped inductor with good heat dissipation effect. Background Art

[0002] The I-shaped inductor is an inductor similar to the Chinese character "工". It is generally a plug-in inductor. The coil is wound on the I-shaped magnetic core according to actual needs, and at the same time, two leads are led out, and finally a heat shrinkable sleeve is sleeved, thus forming the I-shaped inductor. Generally, different manufacturers have different winding methods for the coil winding. Since the I-shaped inductor can have a larger volume and a variety of magnetic core selections, the rated current and the inductance value can be increased to the required values.

[0003] In the prior art, the inductor mainly winds enameled wire on the I-shaped body to form a winding coil, and a shielding cover is added outside the winding coil. The purpose is to prevent the leakage of magnetic lines of force and power loss, and at the same time, it can prevent the interference of external high-frequency harmonics. However, when the I-shaped inductor is in use, if the generated heat cannot be quickly discharged, the too high temperature for a long time will affect the characteristic parameters of the inductor and may even cause its damage.

[0004] Therefore, it is necessary to provide an I-shaped inductor with good heat dissipation effect to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide an I-shaped inductor with good heat dissipation effect to solve the problems put forward in the above background art.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions:

[0007] An I-shaped inductor with good heat dissipation effect includes a magnetic core with an I-shaped cross-section. Two leads are provided at the bottom end of the magnetic core. A coil is wound around the middle section of the magnetic core. The two ends of the coil pass through the magnetic core and are respectively connected to the two leads. A shielding cover is sleeved on the outer peripheral wall of the magnetic core. A plurality of heat dissipation fins penetrating the shielding cover are annularly and arrayedly distributed on the outer peripheral wall of the shielding cover. The shielding cover is detachably connected to the plurality of heat dissipation fins through a heat dissipation plate. The heat dissipation plate is detachably connected to the top end of the shielding cover.

[0008] The technical solution of the utility model is further set as follows: Limiting holes are opened on the top surfaces of the plurality of heat dissipation fins. A plurality of connecting rods are fixedly connected to the surface of the heat dissipation plate facing the magnetic core. The connecting rods are located in the limiting holes.

[0009] The technical solution of the utility model is further configured as follows: the top of the shielding cover is open and there is a distance between its inner wall and the outer wall of the magnetic core, the outer wall of the heat dissipation plate is abutted against the inner wall of the shielding cover and its bottom surface is fixedly connected to a limiting ring, the top of the magnetic core is located in the limiting ring and abuts against the inner wall of the limiting ring, and a plurality of connecting rods are fixedly connected to the bottom surface of the limiting ring.

[0010] The technical solution of the utility model is further configured as follows: a plurality of evenly distributed heat sinks are fixedly connected to the top surface of the heat sink, and the heat sink, the limiting ring, the plurality of connecting rods and the plurality of heat sinks are integrally formed.

[0011] The technical solution of the utility model is further configured as follows: the bottom surface of the shielding cover is provided with two through holes for respectively inserting the two pins, the outer peripheral wall of the shielding cover is provided with a plurality of through slots penetrating the shielding cover, and the heat dissipation fins are located in the through slots.

[0012] The technical solution of the utility model is further configured as follows: two symmetrically arranged grooves are provided at the bottom end of the magnetic core, and two ends of the coil are connected to the two pins after passing through the two grooves respectively.

[0013] The technical solution of the utility model is further configured as follows: two accommodating grooves are provided on the inner bottom surface of the shielding cover, and the two accommodating grooves correspond to the positions of the two through holes respectively.

[0014] The technical solution of the utility model is further configured as follows: one end of the heat dissipation fin in contact with the coil is in an arc-shaped sawtooth structure.

[0015] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0016] By providing heat dissipation fins and heat dissipation plates in direct contact with the magnetic core, the heat generated when the magnetic core is working can be dissipated to the surroundings by using a number of heat dissipation fins, and the heat dissipation plate on the top surface of the magnetic core can also dissipate the heat upward, thereby enhancing the heat dissipation effect on the magnetic core and preventing it from being overheated for a long time, thereby preventing problems such as overheating and damage.

[0017] The magnetic core and the heat sink fins are limited respectively by the limiting ring and the connecting rod on the heat sink, so that the magnetic core is fixed and stable in the shielding cover, while the heat sink and the heat sink fins can be connected, so that the heat between the two can be transferred to each other, thereby expanding the heat dissipation area of the magnetic core and improving the heat dissipation efficiency, and preventing the heat sink fins from falling out of the shielding cover, making the connection installation more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the utility model without the shielding cover;

[0020] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0021] Figure 4 This is a schematic diagram of the structure of the utility model without the shielding cover and the heat sink;

[0022] Figure 5 for Figure 4 The enlarged view of point B in the middle;

[0023] Figure 6 It is a structural schematic diagram of the heat dissipation plate in the utility model;

[0024] Figure 7 It is a schematic diagram of the structure of the shielding cover in the utility model.

[0025] In the figure: 1. magnetic core; 2. pin; 3. coil; 4. shielding cover; 5. heat sink fin; 6. heat sink; 7. limiting hole; 8. connecting rod; 9. limiting ring; 10. heat sink; 11. through hole; 12. through groove; 13. groove; 14. receiving groove. DETAILED DESCRIPTION

[0026] In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the specific implementation methods of the utility model are further described in detail below in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model. Example

[0027] like Figure 1 and Figure 2 As shown, the utility model provides an I-shaped inductor with good heat dissipation effect, including a magnetic core 1 with an I-shaped cross-section, two pins 2 are provided at the bottom end of the magnetic core 1, a coil 3 is wound on the middle section of the magnetic core 1, two ends of the coil 3 pass through the magnetic core 1 and are respectively connected to the two pins 2, a shielding cover 4 is sleeved on the outer peripheral wall of the magnetic core 1, a plurality of heat dissipation fins 5 penetrating the shielding cover 4 are distributed in a circular array on the outer peripheral wall of the shielding cover 4, the shielding cover 4 is detachably connected to the plurality of heat dissipation fins 5 through a heat dissipation plate 6, and the heat dissipation plate 6 is detachably connected to the top of the shielding cover 4.

[0028] like Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6As shown, the top of the shielding cover 4 is open and there is a gap between its inner wall and the outer wall of the magnetic core 1, the outer wall of the heat sink 6 is against the inner wall of the shielding cover 4 and its bottom surface is fixedly connected to the limiting ring 9, the top of the magnetic core 1 is located in the limiting ring 9 and is against the inner wall of the limiting ring 9, and a number of heat dissipation fins 5 are located in the top surface of one end of the shielding cover 4. A number of connecting rods 8 located in the limiting holes 7 are fixedly connected to the bottom surface of the limiting ring 9.

[0029] By setting the above-mentioned structure, the top of the magnetic core 1 can be restricted in the limiting ring 9 on the bottom surface of the heat sink 6, so that the top of the magnetic core 1 will not shake through the heat sink 6, and it is relatively stable in the shielding cover 4. The presence of the heat sink 6 and the heat sink fins 5 allows the heat generated by the magnetic core 1 to be dissipated toward the top and surrounding areas of the magnetic core 1, thereby ensuring the heat dissipation efficiency of the magnetic core 1. Since the heat sink 6 and the heat sink fins 5 are connected by the connecting rod 8, the heat sink fins 5 are limited and will not fall out of the shielding cover 4, thereby ensuring the stability of the heat dissipation structure.

[0030] like Figures 1 to 7 As shown, the outer wall of the shielding cover 4 is provided with a plurality of through grooves 12 passing through the shielding cover 4, the heat dissipation fins 5 are located in the through grooves 12, the bottom end of the magnetic core 1 is provided with two symmetrically arranged grooves 13, the two ends of the coil 3 are respectively welded with the two pins 2 after passing through the two grooves 13, the bottom surface of the shielding cover 4 is provided with two through holes 11 for the two pins 2 to pass through respectively, and the inner bottom surface of the shielding cover 4 is provided with two accommodating grooves 14, the two accommodating grooves 14 respectively correspond to the positions of the two through holes 11 and are used to accommodate the welding points between the two ends of the coil 3 and the two pins 2.

[0031] By setting the above structure, after the pin 2 passes through the through hole 11, the bottom end of the magnetic core 1 is fixed by the shielding cover 4, so that the magnetic core 1 is more stable in the shielding cover 4 and is not easy to shake, and the accommodating groove 14 at the through hole 11 can accommodate the welding point between the coil 3 and the pin 2, so that the bottom end of the magnetic core 1 is relatively flat in the shielding cover 4, and the existence of the groove 13 also makes the connection between the coil 3 and the pin 2 more convenient.

[0032] like Figure 6 As shown, the heat sink 6 is made of copper, and a number of evenly distributed heat sinks 10 are fixedly connected to the top surface of the heat sink 6. The heat sink 6, the limiting ring 9, the number of connecting rods 8 and the number of heat sinks 10 are integrally formed. The heat sink 6 on the top surface of the heat sink 6 is used to increase the heat dissipation area of the top of the magnetic core 1, and because the connecting rod 8 and the limiting ring 9 are also made of copper, the heat at the heat sink fins 5 can also be dissipated upward through the connecting rod 8, thereby improving the heat dissipation efficiency of the magnetic core 1.

[0033] like Figure 2 and Figure 4As shown, the end of the heat dissipation fin 5 that contacts the coil 3 is in an arc-shaped sawtooth structure, which makes the contact area between the heat dissipation fin 5 and the coil 3 larger, so that it has better thermal conductivity and heat dissipation effect, and can quickly dissipate the heat at the coil 3.

[0034] like Figures 1 to 7 As shown, when installing the shielding cover on the magnetic core, you only need to align the pins on the magnetic core with the through holes on the shielding cover and insert them, then insert the heat sink fins through the through slots, and make the heat sink fins abut against the coils on the magnetic core, then put the heat sink into the opening at the top of the shielding cover, and make the top of the magnetic core be located in the limiting ring. At this time, the connecting rod on the limiting ring can be inserted into the limiting hole on the heat sink fin to complete the fixing effect of the heat sink fin and the magnetic core. This method can not only ensure a stable connection, but also dissipate heat on the top and surrounding of the magnetic core to avoid excessive temperature caused by long-term operation of the magnetic core. Figures 1 to 7 As shown, when installing the shielding cover 4 on the magnetic core 1, it is only necessary to align and insert the pins 2 on the magnetic core 1 with the through holes 11 on the shielding cover 4, and then insert the heat sink 5 through the through groove 12, and let the heat sink 5 and the coil 3 on the magnetic core 1 be abutted, and then put the heat sink 6 into the opening at the top of the shielding cover 4, and make the top of the magnetic core 1 be located in the limiting ring 9. At this time, the connecting rod 8 on the limiting ring 9 can be inserted into the limiting hole 7 on the heat sink 5 to complete the fixing effect of the heat sink 5 and the magnetic core 1. This method can not only ensure a stable connection, but also dissipate heat at the top and around the magnetic core 1 to avoid excessive temperature caused by long-term operation of the magnetic core 1.

[0035] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An I-shaped inductor with good heat dissipation effect, comprising a magnetic core (1) with an I-shaped cross-section, two pins (2) being provided at the bottom end of the magnetic core (1), a coil (3) being wound around the middle section of the magnetic core (1), two ends of the coil (3) passing through the magnetic core (1) and being respectively connected to the two pins (2), characterized in that: A shielding cover (4) is sleeved on the outer peripheral wall of the magnetic core (1); a plurality of heat dissipation fins (5) are distributed in an annular array on the outer peripheral wall of the shielding cover (4) and penetrate the shielding cover; the shielding cover (4) is detachably connected to the plurality of heat dissipation fins (5) via a heat dissipation plate (6); and the heat dissipation plate (6) is detachably connected to the top end of the shielding cover (4).

2. The I-shaped inductor with good heat dissipation effect according to claim 1, characterized in that: The top surfaces of the plurality of heat dissipation fins (5) are provided with limiting holes (7); a plurality of connecting rods (8) are fixedly connected to the surface of the heat dissipation plate (6) facing the magnetic core (1); and the connecting rods (8) are located in the limiting holes (7).

3. The I-shaped inductor with good heat dissipation effect according to claim 2, characterized in that: The top end of the shielding cover (4) is open and there is a gap between its inner wall and the outer wall of the magnetic core (1); the outer wall of the heat sink (6) abuts against the inner wall of the shielding cover (4) and its bottom surface is fixedly connected to a limit ring (9); the top end of the magnetic core (1) is located inside the limit ring (9) and abuts against the inner wall of the limit ring (9); and a plurality of connecting rods (8) are fixedly connected to the bottom surface of the limit ring (9).

4. The I-shaped inductor with good heat dissipation effect according to claim 3, characterized in that: A plurality of evenly distributed heat sinks (10) are fixedly connected to the top surface of the heat sink (6); the heat sink (6), the limiting ring (9), the plurality of connecting rods (8) and the plurality of heat sinks (10) are integrally formed.

5. The I-shaped inductor with good heat dissipation effect according to claim 1, characterized in that: The bottom surface of the shielding cover (4) is provided with two through holes (11) for respectively inserting the two pins (2), and the outer peripheral wall of the shielding cover (4) is provided with a plurality of through slots (12) penetrating the shielding cover (4), and the heat dissipation fins (5) are located in the through slots (12).

6. The I-shaped inductor with good heat dissipation effect according to claim 5, characterized in that: The bottom end of the magnetic core (1) is provided with two symmetrically arranged grooves (13), and the two ends of the coil (3) are connected to the two pins (2) after passing through the two grooves (13) respectively.

7. The I-shaped inductor with good heat dissipation effect according to claim 6, characterized in that: Two receiving grooves (14) are provided on the inner bottom surface of the shielding cover (4), and the two receiving grooves (14) correspond to the positions of the two through holes (11) respectively.

8. The I-shaped inductor with good heat dissipation effect according to claim 1, characterized in that: One end of the heat dissipation fin (5) in contact with the coil (3) has an arc-shaped sawtooth structure.