Integrated coupling inductor

Abstract

The invention discloses an integrated coupling inductor which comprises a middle magnetic core, an upper cover plate, a bottom cover plate, a first coil and a second coil, a first winding column is fixedly arranged on one side of the middle magnetic core, a second winding column is fixedly arranged on the other side of the middle magnetic core, the first coil is arranged on the first winding column, and the second coil is arranged on the second winding column. The upper cover plate covers the first coil, and the bottom cover plate covers the second coil. The stacked structure is adopted, the coupling inductor body is formed through integral pressing, the structure is simple, and the coupling inductor is suitable for large-scale automatic production.

Description

Technical Field

[0001] The invention discloses an inductor, in particular to an integrated coupled inductor, belonging to the technical field of electronic components. Background Art

[0002] A coupled inductor refers to two or more inductor elements connected to each other through a magnetic field. They usually transfer energy through a shared magnetic flux. Coupled inductors are widely used in power electronics, communications, transformers, filters and other fields.

[0003] In power electronic devices, coupled inductors are often used in filter circuits to help regulate and stabilize current. In DC-DC converters, coupled inductors are used to improve efficiency and transfer energy between different voltage levels through magnetic field coupling. In wireless power transmission technology, coupled inductors achieve wireless energy transmission through electromagnetic induction. In some communication systems, coupled inductors are used for signal modulation, demodulation and amplification.

[0004] Coupled inductors are widely used in power electronics and communications. Their performance depends on the degree of inductance coupling, magnetic field characteristics and material selection. In design and application, factors such as mutual inductance, coupling coefficient and frequency response need to be considered comprehensively to ensure efficient operation of the system.

[0005] An integrated coupled inductor is an inductor component with an integrated design. It integrates multiple coupled inductor units into a single structure, usually by sharing a magnetic core or internal coupling to achieve the coupling effect of the inductor. This type of inductor is widely used in switching power supplies, power electronic equipment and high-efficiency power conversion systems. Compared with traditional separately arranged inductor components, the integrated coupled inductor has a more compact design, higher integration and higher efficiency.

[0006] Due to the limitation of structural design, the processing of coupled inductors in existing technologies is usually complicated, resulting in high processing costs and high selling prices of the entire product. Summary of the invention

[0007] In view of the above-mentioned disadvantage of high cost of coupled inductors in the prior art due to their structural design, the present invention provides an integrated coupled inductor, which adopts a stacked structure and is pressed together to form a coupled inductor body. The structure is simple and suitable for large-scale automated production.

[0008] The technical solution adopted by the present invention to solve its technical problem is: an integrated coupled inductor, the coupled inductor includes an intermediate magnetic core, an upper cover plate, a bottom cover plate, a first coil and a second coil, a first winding post is fixedly arranged on one side of the intermediate magnetic core, and a second winding post is fixedly arranged on the other side, the first coil is arranged on the first winding post, and the second coil is arranged on the second winding post, the upper cover plate is installed above the first coil, and the bottom cover plate is installed below the second coil.

[0009] The technical solution adopted by the present invention to solve the technical problem further includes: The first winding post and the second winding post are cylindrical in shape respectively, and the first winding post and the second winding post are arranged opposite to each other at the upper and lower sides of the middle magnetic core.

[0010] The first coil includes a first coil body, a first pin, a second pin, a first connecting portion and a second connecting portion, the first pin is connected to one end of the first coil body through the first connecting portion, the second pin is connected to the other end of the first coil body through the second connecting portion, and the first pin and the second pin are respectively arranged at the bottom of the bottom cover plate.

[0011] The first pin and the second pin are arranged side by side.

[0012] The second coil includes a second coil body, a third pin, a fourth pin, a third connecting portion and a fourth connecting portion, the third pin is connected to one end of the second coil body through the third connecting portion, the fourth pin is connected to the other end of the second coil body through the fourth connecting portion, and the third pin and the fourth pin are respectively arranged at the bottom of the bottom cover plate.

[0013] The third pin and the fourth pin are arranged side by side.

[0014] A notch is respectively arranged on the side surface of the bottom cover plate at positions corresponding to the first connecting portion and the second connecting portion, and the first connecting portion and the second connecting portion are respectively located at the positions of the notch.

[0015] A notch is respectively arranged on the side surface of the bottom cover plate at positions corresponding to the third connecting portion and the fourth connecting portion, and the third connecting portion and the fourth connecting portion are respectively located at the positions of the notches.

[0016] A welding pin groove is respectively arranged at the bottom of the bottom cover plate corresponding to the positions of the first pin and the second pin, and the first pin and the second pin are respectively located at the positions of the welding pin groove.

[0017] A welding pin groove is respectively arranged at the bottom of the bottom cover plate at the positions corresponding to the third pin and the fourth pin, and the third pin and the fourth pin are respectively located at the positions of the welding pin groove.

[0018] The beneficial effects of the present invention are as follows: the present invention adopts a stacked structure, which is pressed together to form a coupled inductor body, has a simple structure, and is suitable for large-scale automated production.

[0019] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the structure of the decomposed state of the present invention.

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure from a second viewing angle of the present invention.

[0023] Figure 4 This is a schematic diagram of the structure of the decomposed state from the second viewing angle of the present invention.

[0024] In the figure, 1-middle magnetic core, 11-first winding post, 12-second winding post, 2-upper cover, 3-bottom cover, 31-notch, 32-welding pin groove, 4-first coil, 41-first coil body, 42-first pin, 43-second pin, 44-first connecting part, 45-second connecting part, 5-second coil, 51-second coil body, 52-third pin, 53-fourth pin, 54-third connecting part, 55-fourth connecting part. DETAILED DESCRIPTION

[0025] This embodiment is a preferred implementation mode of the present invention. Other embodiments whose principles and basic structures are the same or similar to those of this embodiment are within the protection scope of the present invention.

[0026] Please refer to the attached Figure 1 To Attachment Figure 4 The present invention mainly protects an integrated coupled inductor, which mainly includes an intermediate magnetic core 1, an upper cover plate 2, a bottom cover plate 3, a first coil 4 and a second coil 5. A first winding post 11 is fixedly arranged on one side of the intermediate magnetic core 1, and a second winding post 12 is fixedly arranged on the other side. The first coil 4 is arranged on the first winding post 11, and the second coil 5 is arranged on the second winding post 12. The upper cover plate 2 is installed above the first coil 4, and the bottom cover plate 3 is installed below the second coil 5.

[0027] In this embodiment, the first winding post 11 and the second winding post 12 are cylindrical, respectively, and the first winding post 11 and the second winding post 12 are arranged opposite to each other at the upper and lower sides of the middle magnetic core 1 .

[0028] In this embodiment, the first coil 4 includes a first coil body 41, a first pin 42, a second pin 43, a first connecting portion 44 and a second connecting portion 45. The first coil 4 is integrally arranged, and each part is artificially defined according to its functional distinction. The first pin 42 is connected to one end of the first coil body 41 through the first connecting portion 44, and the second pin 43 is connected to the other end of the first coil body 41 through the second connecting portion 45.

[0029] In this embodiment, the first pin 42 and the second pin 43 are arranged side by side.

[0030] In this embodiment, the second coil 5 includes a second coil body 51, a third pin 52, a fourth pin 53, a third connecting portion 54 and a fourth connecting portion 55. The second coil 5 is integrally arranged, and each part is artificially defined according to its functional distinction. The third pin 52 is connected to one end of the second coil body 51 through the third connecting portion 54, and the fourth pin 53 is connected to the other end of the second coil body 51 through the fourth connecting portion 55.

[0031] In this embodiment, the third pin 52 and the fourth pin 53 are arranged side by side.

[0032] In this embodiment, the first pin 42 , the second pin 43 , the third pin 52 and the fourth pin 53 are respectively disposed at the bottom of the bottom cover 3 , and the first pin 42 and the second pin 43 are disposed opposite to the third pin 52 and the fourth pin 53 .

[0033] In this embodiment, a notch 31 is respectively provided at the side surface of the bottom cover plate 3 corresponding to the position of the first connection portion 44, the second connection portion 45, the third connection portion 54 and the fourth connection portion 55. The first connection portion 44, the second connection portion 45, the third connection portion 54 and the fourth connection portion 55 are located at the position of the notch 31, so that only a portion of them is exposed at the side surface of the bottom cover plate 3; a welding pin groove 32 is respectively provided at the bottom of the bottom cover plate 3 corresponding to the position of the first pin 42, the second pin 43, the third pin 52 and the fourth pin 53. The first pin 42, the second pin 43, the third pin 52 and the fourth pin 53 are located at the position of the welding pin groove 32, so that only a portion of them is exposed at the bottom of the bottom cover plate 3.

[0034] The present invention adopts a stacked structure and is pressed together to form a coupled inductor body, which has a simple structure and is suitable for large-scale automated production.

Claims

1. An integrated coupled inductor, characterized by: The coupled inductor comprises an intermediate magnetic core (1), an upper cover plate (2), a bottom cover plate (3), a first coil (4) and a second coil (5); a first winding post (11) is fixedly arranged on one side of the intermediate magnetic core (1), and a second winding post (12) is fixedly arranged on the other side; the first coil (4) is arranged on the first winding post (11), and the second coil (5) is arranged on the second winding post (12); the upper cover plate (2) is mounted above the first coil (4), and the bottom cover plate (3) is mounted below the second coil (5).

2. The integrated coupled inductor according to claim 1, characterized in that: The first winding post (11) and the second winding post (12) are respectively cylindrical, and the first winding post (11) and the second winding post (12) are arranged opposite to each other on the upper and lower sides of the middle magnetic core (1).

3. The integrated coupled inductor according to claim 1, characterized in that: The first coil (4) comprises a first coil body (41), a first pin (42), a second pin (43), a first connecting portion (44) and a second connecting portion (45); the first pin (42) is connected to one end of the first coil body (41) via the first connecting portion (44); the second pin (43) is connected to the other end of the first coil body (41) via the second connecting portion (45); the first pin (42) and the second pin (43) are respectively arranged at the bottom of the bottom cover plate (3).

4. The integrated coupled inductor according to claim 3, characterized in that: The first pin (42) and the second pin (43) are arranged side by side.

5. The integrated coupled inductor according to claim 1, characterized in that: The second coil (5) comprises a second coil body (51), a third pin (52), a fourth pin (53), a third connecting portion (54) and a fourth connecting portion (55); the third pin (52) is connected to one end of the second coil body (51) via the third connecting portion (54); the fourth pin (53) is connected to the other end of the second coil body (51) via the fourth connecting portion (55); the third pin (52) and the fourth pin (53) are respectively arranged at the bottom of the bottom cover plate (3).

6. The integrated coupled inductor according to claim 5, characterized in that: The third pin (52) and the fourth pin (53) are arranged side by side.

7. The integrated coupled inductor according to claim 3, characterized in that: A notch (31) is respectively provided on the side surface of the bottom cover plate (3) at positions corresponding to the first connecting portion (44) and the second connecting portion (45); the first connecting portion (44) and the second connecting portion (45) are respectively located at the positions of the notch (31).

8. The integrated coupled inductor according to claim 5, characterized in that: A notch (31) is respectively provided on the side surface of the bottom cover plate (3) at positions corresponding to the third connecting portion (54) and the fourth connecting portion (55); the third connecting portion (54) and the fourth connecting portion (55) are respectively located at the positions of the notches (31).

9. The integrated coupled inductor according to claim 3, characterized in that: A welding pin groove (32) is respectively provided at the bottom of the bottom cover plate (3) at positions corresponding to the first pin (42) and the second pin (43); the first pin (42) and the second pin (43) are respectively located at the positions of the welding pin groove (32).

10. The integrated coupled inductor according to claim 5, characterized in that: A welding pin groove (32) is respectively provided at the bottom of the bottom cover plate (3) at positions corresponding to the third pin (52) and the fourth pin (53); the third pin (52) and the fourth pin (53) are respectively located at the positions of the welding pin groove (32).

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