Inductor

Abstract

The inductor comprises a magnetic core and an electric conductor, the electric conductor is roughly in an n shape and comprises a first end portion, a connecting portion and a second end portion which are sequentially connected, the connecting portion comprises a main body portion, the main body portion comprises a first top face, a first side face and a second side face, and the first side face and the second side face are oppositely arranged. The first end part and the second end part are both perpendicular to the top surface of the main body part, the conductor part is arranged in the magnetic core, the top surface of the main body part is exposed out of the magnetic core, and the connecting part further comprises a first extension part extending from the first side surface of the main body part and a second extension part extending from the second side surface of the main body part. Through the arrangement of the first extension part and the second extension part, a top flat surface suitable for SMT suction nozzle suction parts can be directly provided, compared with the prior art that a Mylar film is pasted on the top, SMT suction parts are convenient, the process of pasting the Mylar film is omitted, the area of the conductor is enlarged, and the heat dissipation effect on the inductor is more effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of inductors, in particular to an inductor. Background Art

[0002] The existing power inductor structure is composed of two magnetic cores and an n-type conductor. After the combination, a Mylar sheet is attached to the top to facilitate SMT suction. The material of the Mylar sheet is generally polyimide (PI), which has poor heat dissipation effect. As the power consumption of the chip increases, the current carried by the inductor also increases, and the relative loss and temperature generated are also getting higher and higher. However, the heat dissipation surface of the inductor has not increased accordingly, resulting in the heat dissipation efficiency not increasing synchronously, affecting the normal operation of the inductor. Therefore, a more efficient heat conduction method is needed to maintain the normal operation of the inductor. Utility Model Content

[0003] Based on this, it is necessary to provide a more efficient heat conduction method to maintain the normal operation of the inductor.

[0004] An inductor, comprising:

[0005] Magnetic core;

[0006] And a conductor, which is roughly in an N shape, and includes a first end, a connecting part, and a second end connected in sequence, the connecting part includes a main body, the main body includes a first top surface, a first side surface and a second side surface arranged oppositely, the first end and the second end are perpendicular to the first top surface of the main body, the conductor is partially arranged inside the magnetic core, and the top surface of the main body is exposed to the magnetic core, characterized in that the connecting part also includes a first extension part extending from the first side surface of the main body and a second extension part extending from the second side surface of the main body.

[0007] Optionally, the first extension portion and the second extension portion are both rectangular parallelepipeds.

[0008] Optionally, the first extension portion, the main body portion and the second extension portion are integrally formed to form a cuboid or a cube.

[0009] Optionally, the magnetic core is a cubic structure, including a second top surface, the second top surface is provided with a first groove and a second groove, the first groove transversely penetrates the magnetic core and is connected to the second groove, and the top surface of the magnetic core is parallel to the top surface of the main body.

[0010] Optionally, the first extension portion is installed in the first groove, and the second extension portion is installed in the second groove.

[0011] Optionally, the connecting portion also includes a third extension portion, a fourth extension portion, a fifth extension portion and a sixth extension portion, the third extension portion extends from one end of the first extension portion along the first direction, the fourth extension portion extends from the other end of the first extension portion along the second direction, the fifth extension portion extends from one end of the second extension portion along the first direction, and the sixth extension portion extends from the other end of the second extension portion along the second direction, and the first direction and the second direction are opposite.

[0012] Optionally, the first extension portion, the second extension portion, the third extension portion, the fourth extension portion, the fifth extension portion, the sixth extension portion and the main body portion are integrally formed to form an H-shaped cube structure.

[0013] The present application can increase the conductor area of ​​the connecting part by providing a first extension part and a second extension part in opposite directions, and provides a top flat surface suitable for the SMT nozzle to directly suck parts. Compared with the prior art of sticking a Mylar sheet on the top to facilitate SMT suction of parts, it not only saves the process of sticking the Mylar sheet, but also increases the heat dissipation area, thereby more effectively improving the heat dissipation effect of the inductor. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0015] Figure 1 is a schematic diagram of the overall structure of an inductor in an embodiment;

[0016] Figure 2 is a side view of a conductor in one embodiment;

[0017] Figure 3 is a schematic structural diagram of a conductor in an embodiment;

[0018] Figure 4 is a schematic structural diagram of a conductor in another embodiment;

[0019] Figure 5 is a schematic diagram of the overall structure of an inductor in another embodiment;

[0020] Figure 6 is a partial structural schematic diagram of a magnetic core in an embodiment;

[0021] The names and serial numbers of the parts in the figure are: 1-magnetic core; 11-second top surface; 12-bottom surface of magnetic core; 2-conductor; 21-first end; 211-first terminal; 212-second terminal; 22-connecting portion; 23-second end; 231-third terminal; 232-fourth terminal; 221-main body; 2211-first top surface; 2212-first side surface; 2213-second side surface; 222 first extension portion; 223-second extension portion; 224-third extension portion; 225-fourth extension portion; 226-fifth extension portion; 227-sixth extension portion; 3-first groove; 4-second groove; 5-third groove; 6-fourth groove; 7-first direction; 8-second direction; 9-inner cavity.

[0022] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, "and / or" in the full text includes three solutions. Taking A and / or B as an example, it includes technical solution A, technical solution B, and technical solution that satisfies both A and B; in addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0026] refer to Figure 1 and Figure 2The present application provides an inductor, which includes a magnetic core 1 and a conductor 2; the conductor 2 is roughly in an n-shape, including a first end 21, a connecting portion 22 and a second end 23 connected in sequence, the connecting portion includes a main body 221, the main body 221 includes a first top surface 2211, a first side surface 2212 and a second side surface 2213 arranged opposite to each other, the first end 21 and the second end 23 are both perpendicular to the top surface 2211 of the main body, the conductor 2 is partially arranged inside the magnetic core 1, the first top surface 2211 of the main body is exposed to the magnetic core 1, the connecting portion 22 also includes a first extension portion 222 extending from the first side surface 2212 of the main body 221 and a second extension portion 223 extending from the second side surface 2213 of the main body 221.

[0027] The present application can increase the area of ​​the top surface of the connecting portion 22 by setting the extension portion 222, and can directly provide a top flat surface suitable for the SMT suction nozzle to suck parts. Compared with the prior art of sticking a Mylar sheet on the top to facilitate SMT suction, it not only saves the process of sticking the Mylar sheet, but also increases the heat dissipation area, thereby more effectively improving the heat dissipation effect of the inductor.

[0028] In this embodiment, reference Figure 3 The first extension portion 222, the main body portion 221 and the second extension portion 223 are integrally formed to form a rectangular parallelepiped or a cube.

[0029] Specifically, the first extension portion 222 , the main body portion 221 , and the second extension portion 223 are all cuboids.

[0030] In another embodiment, reference Figure 4 The connecting portion 22 also includes a third extension portion 224, a fourth extension portion 225, a fifth extension portion 226, and a sixth extension portion 227. The third extension portion 224 extends from one end of the first extension portion 222 along the first direction 7, the fourth extension portion 225 extends from the other end of the first extension portion 222 along the second direction 8, the fifth extension portion 226 extends from one end of the second extension portion 223 along the first direction 7, and the sixth extension portion 227 extends from the other end of the second extension portion 223 along the second direction 8. The first direction 7 and the second direction 8 are opposite.

[0031] Specifically, the first extension portion 222, the second extension portion 223, the third extension portion 224, the fourth extension portion 225, the fifth extension portion 226, the sixth extension portion 227 and the main body 221 are integrally formed to form an H-shaped cube structure; it can be understood that the top surface of the connecting portion 22 composed of the first extension portion 222, the second extension portion 223, the third extension portion 224, the fourth extension portion 225, the fifth extension portion 226, the sixth extension portion 227 and the main body 221 is a planar structure, so that the SMT nozzle can be directly adsorbed on this plane.

[0032] In this embodiment, reference Figure 1 The magnetic core 1 is a cubic structure, including a second top surface 11, on which a first groove 3 and a second groove 4 are provided. The first groove 3 runs horizontally through the magnetic core 1 and is connected to the second groove 4. The second top surface 11 of the magnetic core is parallel to the first top surface 2211 of the main body.

[0033] Specifically, the first extension portion 222 is installed in the first groove 3 , and the second extension portion 223 is installed in the second groove 4 .

[0034] In another embodiment, reference Figure 5 The magnetic core 1 is a cubic structure, including a second top surface 11 . The connecting portion 22 is disposed on the surface of the magnetic core 1 and is in contact with the second top surface 11 .

[0035] refer to Figure 3 and Figure 6 The magnetic core 1 has an inner cavity 9, and the magnetic core 1 also includes a bottom surface 12, and the third groove 5 and the fourth groove 6 are provided at both ends of the bottom surface 12, and the third groove 5 and the fourth groove 6 are both communicated with the inner cavity 9. The first end 21 includes a first terminal 211 and a second terminal 212, and the second end 23 includes a third terminal 231 and a fourth terminal 232, the first terminal 211 and the third terminal 231 are connected to the main body 221, the second terminal 231 is extended from one end of the first terminal 211 away from the main body 221 along the first direction 7, and the fourth terminal 232 is extended from the other end of the third terminal 231 away from the main body 221 along the second direction 8, the second terminal 231 is arranged in the third groove 5, and the fourth terminal 232 is arranged in the fourth groove 6.

[0036] Specifically, the second terminal 211 and the fourth terminal 231 are arranged relatively outward.

[0037] Specifically, the second terminal 212 , the fourth terminal 232 and the main body 221 are all accommodated in the inner cavity 9 .

[0038] refer to Figure 1 In the height direction of the magnetic core, the top surfaces of the first terminal 211 and the third terminal 231 are flush with the bottom surface 12 of the magnetic core, which is convenient for welding and fixing with the circuit board, reducing the problem of cold solder joints and empty solder joints, and improving the reliability of the inductor.

[0039] Furthermore, the first terminal 211 and the third terminal 231 are both exposed on the bottom surface 12 of the magnetic core 1 .

[0040] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An inductor, comprising: Magnetic core; And a conductor, which is roughly in an n-shape, and includes a first end, a connecting part, and a second end connected in sequence, the connecting part includes a main body, the main body includes a first top surface, a first side surface and a second side surface arranged oppositely, the first end and the second end are both perpendicular to the first top surface of the main body, the conductor is partially arranged inside the magnetic core, and the top surface of the main body is exposed to the magnetic core, characterized in that the connecting part also includes a first extension part extending from the first side surface of the main body and a second extension part extending from the second side surface of the main body.

2. The inductor according to claim 1, characterized in that: The first extension portion and the second extension portion are both cuboids.

3. The inductor according to claim 2, characterized in that: The first extension portion, the main body portion and the second extension portion are integrally formed to form a cuboid or a cube.

4. The inductor according to claim 1, characterized in that: The magnetic core is a cubic structure and includes a second top surface. A first groove and a second groove are provided on the second top surface. The first groove and the second groove transversely penetrate the magnetic core and are connected to each other. The top surface of the magnetic core is parallel to the top surface of the main body.

5. The inductor according to claim 4, characterized in that: The first extension portion is installed in the first groove, and the second extension portion is installed in the second groove.

6. The inductor according to claim 1, characterized in that: The connecting portion also includes a third extension portion, a fourth extension portion, a fifth extension portion and a sixth extension portion, the third extension portion extends from one end of the first extension portion along the first direction, the fourth extension portion extends from the other end of the first extension portion along the second direction, the fifth extension portion extends from one end of the second extension portion along the first direction, and the sixth extension portion extends from the other end of the second extension portion along the second direction, the first direction and the second direction are opposite and parallel to the top surface of the main body.

7. The inductor according to claim 6, characterized in that: The first extension portion, the second extension portion, the third extension portion, the fourth extension portion, the fifth extension portion, the sixth extension portion and the main body portion are integrally formed to form an H-shaped cube structure.

8. An inductor according to claim 7, characterized in that: The H-shaped cube structure is arranged on the surface of the magnetic core.

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