Magnetic element

Abstract

The utility model discloses a magnetic element. The magnetic element comprises a heat dissipation shell which is in a semi-surrounding shape and is provided with a containing groove, and the containing groove is provided with a notch; the magnetic piece body is arranged in the accommodating groove; the magnetic part base comprises an insulating part and a metal part, the magnetic part body is installed on the insulating part, the metal part penetrates through the insulating part and stretches across the notch, and the two opposite ends of the metal part are connected with the heat dissipation shell, so that the metal part and the heat dissipation shell jointly surround the magnetic part body. According to the magnetic element provided by the embodiment of the utility model, electromagnetic interference of the magnetic element body can be shielded in a surrounding manner, and the overall electromagnetic interference shielding effect of the magnetic element is improved.

Description

Technical Field

[0001] The utility model relates to the field of electromagnetic devices, and particularly to a magnetic component. Background Art

[0002] Magnetic components generally include a magnetic part body, a heat dissipation housing, etc. The heat dissipation housing is disposed around the magnetic part body semi-circularly. Currently, the overall electromagnetic interference shielding effect of magnetic components is poor. Summary of the Utility Model

[0003] The utility model provides a magnetic component, which can improve the overall electromagnetic interference shielding effect.

[0004] An embodiment of the utility model provides a magnetic component, which includes: a heat dissipation housing, the heat dissipation housing is in a semi-circular shape and has a receiving groove, the receiving groove has a notch; a magnetic part body, placed in the receiving groove; a magnetic part base, the magnetic part base includes an insulating part and a metal part, the magnetic part body is installed on the insulating part, the metal part penetrates through the insulating part and is horizontally arranged across the notch, and opposite ends of the metal part are connected to the heat dissipation housing, so that the metal part and the heat dissipation housing jointly surround the magnetic part body.

[0005] For the magnetic component according to the embodiment of the utility model, the heat dissipation housing is in a semi-circular shape and has a receiving groove, and the magnetic part body is placed in the receiving groove. The magnetic part base includes an insulating part and a metal part, the metal part penetrates through the insulating part and is horizontally arranged across the notch of the receiving groove, and opposite ends of the metal part are connected to the heat dissipation housing, so that the metal part and the heat dissipation housing jointly surround the magnetic part body. Therefore, the connection between the heat dissipation housing and the metal part of the magnetic part base forms a closed-loop metal structure, which jointly surrounds the magnetic part body located in the receiving groove, thereby surrounding and shielding the electromagnetic interference of the magnetic part body, and improving the overall electromagnetic interference shielding effect of the magnetic component. In the above embodiment, the magnetic part body is fixedly connected to the magnetic part base, and opposite ends of the magnetic part base are connected to the heat dissipation housing, thereby further improving the connection stability between multiple components in the magnetic component, improving the seismic performance of the magnetic component, and reducing the possibility of the pins of the magnetic part body breaking due to external vibration.

[0006] According to any one of the foregoing embodiments of the utility model, the heat dissipation housing includes a bottom side part opposite to the notch and first side parts and second side parts located on opposite sides of the notch along a first direction, the metal part extends along the first direction, and opposite ends of the metal part along the first direction are respectively connected to the first side part and the second side part.

[0007] According to any of the foregoing embodiments of the present utility model, the metal part includes an extension part and a connection part. The extension part passes through the insulating part and extends in a flat plate shape. The connection parts are arranged at opposite ends of the extension part along the first direction, and the connection parts can be correspondingly connected to the first side part and the second side part.

[0008] According to any of the foregoing embodiments of the present utility model, the connection part is provided with a first positioning hole, and the first side part and the second side part are respectively provided with second positioning holes. A conductive connecting piece passes through the first positioning hole and is connected to the second positioning hole, so that the connection part is correspondingly connected to the first side part and the second side part.

[0009] According to any of the foregoing embodiments of the present utility model, the connection part is correspondingly connected to the first side part and the second side part through a conductive foam.

[0010] According to any of the foregoing embodiments of the present utility model, the first side part and the second side part are respectively provided with conductive buckles, and the connection part is correspondingly connected to the first side part and the second side part through the buckles.

[0011] According to any of the foregoing embodiments of the present utility model, the extension part covers the magnetic part body.

[0012] According to any of the foregoing embodiments of the present utility model, a heat-conducting medium is filled between the magnetic part body and the heat dissipation housing and between the magnetic part body and the metal part.

[0013] According to any of the foregoing embodiments of the present utility model, the magnetic component further includes: a circuit board. The magnetic part base connects the magnetic part body to the circuit board. The circuit board is located outside the notch. The insulating part includes a first insulating part on the side of the metal part facing the magnetic part body and a second insulating part on the side of the metal part facing the circuit board, wherein the first insulating part is a heat-conducting insulating structure.

[0014] According to any of the foregoing embodiments of the present utility model, the heat dissipation housing has a liquid flow channel for the cooling medium to flow through inside. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0016] Figure 1 Schematic diagram of the structure of the first embodiment of the magnetic component of the present utility model;

[0017] Figure 2 Top view schematic diagram of the connection between the metal part and the heat dissipation housing in the first embodiment of the magnetic component of the present utility model;

[0018] Figure 3 Schematic diagram of the structure of the second embodiment of the magnetic component of the present utility model;

[0019] Figure 4 Schematic diagram of the structure of the third embodiment of the magnetic component of the present utility model;

[0020] Figure 5 Top view schematic diagram of the connection between the metal part and the heat dissipation housing in the third embodiment of the magnetic component of the present utility model.

[0021] Explanation of reference numerals in the drawings:

[0022] 100 - Heat dissipation housing; 110 - First side part; 120 - Second side part; 130 - Bottom side part; C1 - Accommodating groove;

[0023] 200 - Magnetic component body;

[0024] 300 - Magnetic component base; 310 - Insulating part; 311 - First insulating part; 312 - Second insulating part; 320 - Metal part; 321 - Extension part; 322 - Connection part;

[0025] 400 - Circuit board;

[0026] 510 - Conductive connecting piece; 520 - Conductive foam; 530 - Conductive buckle;

[0027] 600 - Thermal conductive medium;

[0028] D1 - First positioning hole; D2 - Second positioning hole;

[0029] X - First direction.

[0030] The realization of the purpose, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0032] It should be noted that all directional indications in the embodiments of the present utility model, such as up, down, left, right, front, back... are only used to explain the relative positional relationship and movement conditions between components in a certain specific posture as shown in the attached drawings. If this specific posture changes, the directional indications will also change accordingly.

[0033] In addition, the descriptions involving "first", "second", etc. in the present utility model are only for descriptive purposes and cannot be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0034] The embodiments of the present utility model provide a magnetic component. A magnetic component, abbreviated as a magnetic part, is an electrical component used for energy storage or energy conversion. A magnetic component generally includes a magnetic core and a coil structure wound around the magnetic core in a specific manner. Magnetic components are, for example, inductance components, transformers, etc.

[0035] A magnetic component generally includes a magnetic part body, a heat dissipation housing, etc. The heat dissipation housing is semi-surroundingly arranged around the magnetic part body. In the related art, since the heat dissipation housing is semi-surroundingly arranged around the magnetic part body, the electromagnetic interference shielding effect of the several surfaces of the magnetic part body semi-surrounded by the heat dissipation housing is relatively good, but the electromagnetic interference of the surfaces of the magnetic part body not semi-surrounded by the heat dissipation housing cannot be shielded, resulting in a relatively poor overall electromagnetic interference shielding effect of the magnetic component in the related art.

[0036] Figure 1 This is a schematic structural diagram of the first embodiment of the magnetic component of the present utility model. The magnetic component 100 includes a heat dissipation housing 100, a magnetic part body 200, and a magnetic part base 300. The heat dissipation housing 100 is in a semi-surrounding shape and has a receiving groove C1, and the receiving groove C1 has an opening. The magnetic part body 200 is placed in the receiving groove C1. The magnetic part base 300 is used to connect the magnetic part body 200.

[0037] In this embodiment, the magnetic part base 300 includes an insulating part 310 and a metal part 320. The magnetic part body 200 is installed on the insulating part 310. The metal part 320 passes through the insulating part 310 and is horizontally arranged across the opening. The opposite ends of the metal part 320 are connected to the heat dissipation housing 100, so that the metal part 320 and the heat dissipation housing 100 jointly surround the magnetic part body 200.

[0038] According to the magnetic component of the embodiment of the present utility model, the heat dissipation housing 100 is in a semi-surrounding shape and has a receiving groove C1, and the magnetic component body 200 is placed in the receiving groove C1. The magnetic component base 300 includes an insulating member 310 and a metal member 320. The metal member 320 penetrates through the insulating member 310 and is horizontally arranged across the notch of the receiving groove C1. The opposite ends of the metal member 320 are connected to the heat dissipation housing 100, so that the metal member 320 and the heat dissipation housing 100 jointly surround the magnetic component body 200. Therefore, the heat dissipation housing 100 and the metal member 320 of the magnetic component base 300 are connected into a closed-loop metal structure, jointly surrounding the magnetic component body 200 located in the receiving groove C1, thereby carrying out surrounding shielding on the electromagnetic interference of the magnetic component body 200 and improving the overall electromagnetic interference shielding effect of the magnetic component. In the above embodiment, the magnetic component body 200 is fixedly connected to the magnetic component base 300, and the opposite ends of the magnetic component base 300 are connected to the heat dissipation housing 100, thereby further improving the connection stability between multiple components in the magnetic component, improving the seismic performance of the magnetic component, and reducing the possibility of the pins of the magnetic component body 200 being broken due to external vibration.

[0039] In some embodiments, the heat dissipation housing 100 has a liquid flow channel inside for the cooling medium to flow through. A flowing cooling medium can be provided to the liquid flow channel through an external device, thereby improving the heat dissipation performance of the heat dissipation housing 100 and facilitating the improvement of the heat dissipation effect on the internal magnetic component body 200.

[0040] In some embodiments, a heat-conducting medium 600 is filled between the magnetic component body 200 and the heat dissipation housing 100 and between the magnetic component body 200 and the metal member 320. In the above embodiment, the heat-conducting medium 600 can conduct the heat of the magnetic component body 200 to the heat dissipation housing 100 more efficiently, thereby further improving the heat dissipation effect of the magnetic component.

[0041] In some embodiments, the magnetic component 100 further includes a circuit board 400. The magnetic component base 300 connects the magnetic component body 200 to the circuit board 400, and the circuit board 400 is located outside the notch. In this embodiment, the insulating member 310 is connected between the magnetic component body 200 and the circuit board 400.

[0042] In some embodiments, the insulating member 310 includes a first insulating portion 311 on the side of the metal member 320 facing the magnetic component body 200 and a second insulating portion 312 on the side of the metal member 320 facing the circuit board 400, wherein the first insulating portion 311 is a heat-conducting insulating structure. The second insulating portion 312 can be made of insulating plastic material.

[0043] In the above embodiment, the first insulating portion 311 on the side of the metal member 320 facing the magnetic member body 200 is a thermally conductive insulating structure. The heat on the surface of the magnetic member body 200 facing the notch side can be efficiently transmitted to the metal member 320 through the first insulating portion 311. Since the metal member 320 has good thermal conductivity, it can further conduct the heat to the heat dissipation housing 100 efficiently, thereby further improving the heat dissipation effect of the magnetic component.

[0044] Figure 2 FIG. 4 is a top view of the connection between the metal member and the heat dissipation housing in the first embodiment of the magnetic component of the present invention. In some embodiments, the heat dissipation housing 100 includes a bottom side portion 130 opposite to the notch and first side portions 110 and second side portions 120 located on opposite sides of the notch along the first direction X. Optionally, the metal member 320 extends to the four corners of the top surface of the heat dissipation housing 100 and is connected to the heat dissipation housing 100 at these four corners. Optionally, the metal member 320 extends to partial areas on the tops of the first side portion 110 and the second side portion 120 respectively, and is connected to the first side portion 110 and the second side portion 120 respectively.

[0045] In this embodiment, the metal member 320 extends along the first direction X, and opposite ends of the metal member 320 along the first direction X are respectively connected to the first side portion 110 and the second side portion 120.

[0046] In the above embodiment, opposite ends of the metal member 320 along the first direction X are respectively connected to the first side portion 110 and the second side portion 120, realizing a closed-loop electrical connection with the semi-surrounding heat dissipation housing 100, thereby ensuring effective shielding of electromagnetic interference to the magnetic component.

[0047] In some embodiments, the metal member 320 includes an extension portion 321 and a connection portion 322. The extension portion 321 passes through the insulating member 310 and extends in a flat shape. In this embodiment, the extension portion 321 extends along a direction parallel to the circuit board 400. The connection portion 322 is provided at opposite ends of the extension portion 321 along the first direction X, and the connection portion 322 can be correspondingly connected to the first side portion 110 and the second side portion 120.

[0048] In the above embodiment, the metal member 320 includes an extension portion 321 and a connection portion 322. The extension portion 321 passes through the insulating member 310 and extends along a direction parallel to the circuit board 400. The extension portion 321 realizes the shielding effect on the electromagnetic interference of the magnetic component facing the notch side, and together with the insulating portion, improves the supporting ability of the magnetic member base 300, thereby improving the connection stability between the magnetic member base 300 and the magnetic component.

[0049] In some embodiments, the extension portion 321 covers the magnetic component body 200, thereby improving the shielding effect of the metal component 320 on the electromagnetic interference of the magnetic component body 200. In this embodiment, the projection of the extension portion 321 on the circuit board 400 covers the projection of the magnetic component body 200 on the circuit board 400.

[0050] In this embodiment, the connecting portion 322 is provided with a first positioning hole D1, and the first side portion 110 and the second side portion 120 are respectively provided with second positioning holes D2. The conductive connecting piece passes through the first positioning hole D1 and is connected to the second positioning hole D2, so that the connecting portion 322 is correspondingly connected to the first side portion 110 and the second side portion 120. The conductive connecting piece 510 is, for example, a bolt connecting piece, and the second positioning hole D2 is, for example, a threaded hole.

[0051] In the above embodiment, by passing the conductive connecting piece 510 through the first positioning hole D1 and connecting it to the second positioning hole D2, the electrical connection between the metal component 320 and the heat dissipation housing 100 is realized. In addition, the matching connection between the first positioning hole D1 and the second positioning hole D2 can achieve accurate positioning between the magnetic component base 300 and the heat dissipation housing 100, and the magnetic component body 200, the circuit board 400, and the magnetic component base 300 can all be accurately positioned. Therefore, the magnetic component in the above embodiment can further improve the installation accuracy during installation.

[0052] The manner in which the connecting portion 322 is correspondingly connected to the first side portion 110 and the second side portion 120 is not limited to the above example, and other forms are also possible.

[0053] Figure 3 FIG. is a schematic structural diagram of the second embodiment of the magnetic component of the present invention. Different from the first embodiment, in this embodiment, the connecting portion 322 is correspondingly connected to the first side portion 110 and the second side portion 120 through a conductive foam 520.

[0054] In this embodiment, the connecting portion 322 is correspondingly connected to the first side portion 110 and the second side portion 120 through a conductive foam 520. On the basis of realizing the electrical connection between the metal component 320 and the heat dissipation housing 100, the conductive foam 520 further provides buffering when the magnetic component receives external vibrations, thereby further improving the seismic performance of the magnetic component.

[0055] Figure 4 FIG. is a schematic structural diagram of the third embodiment of the magnetic component of the present invention, Figure 5This is a top view schematic diagram of the connection between the metal part and the heat dissipation housing in the third embodiment of the magnetic component of the present utility model. Different from the first and second embodiments, in this embodiment, conductive buckles 530 are respectively provided on the first side part 110 and the second side part 120, and the connecting part 322 is correspondingly connected to the first side part 110 and the second side part 120 through the buckles.

[0056] In this embodiment, the conductive buckles 530 are used to realize the connection and positioning between the metal part 320 and the heat dissipation housing 100, and the assembly process is more rapid and convenient. After the connection is completed, the conductive buckles 530 on the first side part 110 and the second side part 120 limit the metal part 320, realizing the accurate positioning between the magnetic part base 300 and the heat dissipation housing 100, thereby improving the installation accuracy of the magnetic component during installation.

[0057] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present utility model under the concept of the present utility model, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present utility model.

Claims

1. A magnetic element, characterized in that: include: A heat dissipation housing (100), the heat dissipation housing (100) being in a semi-enclosed shape and having a receiving groove (C1), the receiving groove (C1) having a notch; The magnetic body (200) is placed in the containing groove (C1); A magnetic component base (300), the magnetic component base (300) comprising an insulating component (310) and a metal component (320), the magnetic component body (200) being mounted on the insulating component (310), the metal component (320) being passed through the insulating component (310) and being arranged across the slot, and the opposite ends of the metal component (320) being connected to the heat dissipation housing (100), so that the metal component (320) and the heat dissipation housing (100) together surround the magnetic component body (200).

2. The magnetic element according to claim 1, characterized in that The heat dissipation housing (100) comprises a bottom side portion (130) opposite to the notch, and a first side portion (110) and a second side portion (120) located on opposite sides of the notch along a first direction (X). The metal part (320) extends along the first direction (X), and opposite ends of the metal part (320) along the first direction (X) are respectively connected to the first side part (110) and the second side part (120).

3. The magnetic element according to claim 2, characterized in that The metal part (320) comprises an extension part (321) and a connection part (322); the extension part (321) is arranged through the insulating part (310) and extends in a flat plate shape; the connection part (322) is arranged at two opposite ends of the extension part (321) along the first direction (X); the connection part (322) can be connected to the first side part (110) and the second side part (120) correspondingly.

4. The magnetic element according to claim 3, characterized in that The connecting portion (322) is provided with a first positioning hole (D1), and the first side portion (110) and the second side portion (120) are respectively provided with a second positioning hole (D2); the conductive connecting member (510) passes through the first positioning hole (D1) and is connected to the second positioning hole (D2), so that the connecting portion (322) is correspondingly connected to the first side portion (110) and the second side portion (120).

5. The magnetic element according to claim 3, characterized in that: The connecting portion (322) is correspondingly connected to the first side portion (110) and the second side portion (120) via a conductive foam (520).

6. The magnetic element according to claim 3, characterized in that: The first side portion (110) and the second side portion (120) are respectively provided with conductive buckles (530), and the connecting portion (322) is correspondingly connected to the first side portion (110) and the second side portion (120) via the buckles.

7. The magnetic element according to claim 3, characterized in that: The extension portion (321) covers the magnetic component body (200).

8. The magnetic element according to claim 1, characterized in that A heat-conducting medium (600) is filled between the magnetic component body (200) and the heat dissipation housing (100), and between the magnetic component body (200) and the metal component (320).

9. The magnetic element according to claim 1, characterized in that: Also includes: The magnetic base (300) connects the magnetic body (200) and the circuit board (400), and the circuit board (400) is located outside the notch. The insulating member (310) comprises a first insulating portion (311) located on the side of the metal member (320) facing the magnetic member body (200) and a second insulating portion (312) located on the side of the metal member (320) facing the circuit board (400), wherein the first insulating portion (311) is a heat-conducting insulating structure.

10. The magnetic element according to claim 1, characterized in that The heat dissipation housing (100) has a liquid flow channel inside for the circulation of cooling medium.

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