TWM585972U - Inductor with enhanced coupling - Google Patents

Abstract

An inductor capable of being lifted and coupled includes a first magnetic core body having a first receiving slot thereon, and a first coil having a first upper side arm receiving the first upper side arm. A first accommodating slot; a second coil is provided with a second upper side arm, the second upper side arm is accommodated in the first accommodating slot, and the second upper side arm is adjacent to the first upper side arm; A magnetic isolator is disposed between the first upper arm and the second upper arm at the first receiving slot; a second magnetic core body is provided on the bottom surface of the second magnetic core body with a first Two receiving slots and one third receiving slot. Therefore, I can make this creation by providing a magnetic isolator in two mutually coupled inductors, to prevent the leakage magnetic flux generated by one of the inductors (at the first upper arm) from coupling to the other inductor (the second upper side) At the arm), complete coupling and transmission of the magnetic flux (line of force) between the two inductors is achieved to form a double inductor (device) that can maintain (design) a certain inductance value.

Description

Increased coupling inductance

This creation is an inductor, especially an inductor that can increase coupling.

Common inductors can be used as chokes, windings, high and low frequency signal filters, or transformer power converters. Therefore, it is disclosed as a "coupled inductor" such as the Republic of China Patent Publication No. I649770, in which the two inductors shown in Fig. 1, Fig. 2 and Fig. 3 in this case are coupled.

In this technical solution, for the leakage magnetic flux of the inductor, in this type of inductor with an air gap (gap), a certain amount of leakage magnetic flux will be generated around the air gap (gap), although the leakage magnetic flux also forms a double The coupling factor between the inductors, but when the two inductors are coupled, the magnetic flux (magnetic field lines) will be transmitted incompletely, causing the coupling between the two inductors to be incomplete, making the coefficient of coupling poor. It is impossible to maintain (design) a dual inductor (device) with a certain inductance value, and it is easy to cause the phenomenon of uneven inductance of the two inductors.

In view of customary usage, the purpose of this creation is to solve and improve problems and shortcomings in customary usage.

In order to achieve the above purpose, the present invention provides an inductor capable of improving coupling, which includes: a first magnetic core body provided with a first receiving slot; and a first coil provided with A first upper side arm, a first side arm, a second side arm, a first lower side arm, and a second lower side arm, the first upper side arm is accommodated in the first receiving groove; a first Two coils are provided with a second upper side arm, a third side arm, a fourth side arm, a third lower side arm, and a fourth lower side arm. The second upper side arm is received in the first container. A slot is placed, and the second upper arm is adjacent to the first upper arm; a magnetic isolator is disposed between the first upper arm and the second upper arm at the first receiving slot; a first Two magnetic core bodies are provided on the bottom surface of the second magnetic core body with a second receiving groove and a third receiving groove, so that the first lower arm and the third lower arm are accommodated in the first Two receiving grooves, and the second lower arm and the fourth lower arm are received in the third receiving groove.

Among them, the first coil and the second coil are preferably flat coils.

Preferably, the first side arm and the third side arm are attached to outer surfaces of respective sides of the first core body and the second core body, and the second side arm and the fourth side arm The first magnetic core body and the second magnetic core body are respectively attached to the outer surfaces of the other sides.

Therefore, I can make this creation by providing a magnetic isolator in two mutually coupled inductors, to prevent the leakage magnetic flux generated by one of the inductors (at the first upper arm) from coupling to the other inductor (the second upper side) At the arm), complete coupling and transmission of the magnetic flux (line of force) between the two inductors is achieved to form a double inductor (device) that can maintain (design) a certain inductance value.

[This creation]

1‧‧‧ the first magnetic core

11‧‧‧ the first receiving tank

2‧‧‧ the first coil

21‧‧‧First upper side arm

22‧‧‧first side arm

23‧‧‧ second side arm

24‧‧‧ First lower side arm

25‧‧‧ Second lower side arm

3‧‧‧second coil

31‧‧‧second upper arm

32‧‧‧ Third side arm

33‧‧‧ Fourth side arm

34‧‧‧ Third lower side arm

35‧‧‧ Fourth lower side arm

4‧‧‧ Magnetic Isolator

5‧‧‧Second magnetic core body

51‧‧‧Second accommodation slot

52‧‧‧Third accommodation slot

The first figure is a schematic diagram of the three-dimensional exploded structure of the preferred embodiment of this creation.

The second figure is a schematic diagram of the three-dimensional combination structure of the preferred embodiment of this creation.

The third figure is a schematic view of the side view structure and magnetic lines of the preferred embodiment of this creation.

In order to make your reviewers understand the content of this creation clearly, the following examples are used to illustrate it with drawings and symbols. Please refer to it.

Please refer to the first figure and the second figure. The present invention provides an inductor capable of improving coupling, which includes: a first magnetic core body 1, a first coil 2, a second coil 3, and a magnetic isolator 4 And a second magnetic core body 5.

Wherein, the first magnetic core body 1 is provided with an open first receiving groove 11 thereon, and the first coil 2 is provided with a first upper side arm 21, a first side arm 22, a second side arm 23, A first lower arm 24 and a second lower arm 25. The first upper arm 21 is received in the first receiving groove 11. The second coil 3 is provided with a second upper arm 31, a third lateral arm 32, a fourth lateral arm 33, a third lower lateral arm 34, and a fourth lower lateral arm 35. The second upper side arm 31 is disposed in the first receiving slot 11, and the second upper side arm 31 is adjacent to the first upper side arm 21. The second upper side arm 31 and the first upper side arm 21 are not in contact with each other and spaced apart. For example, the first coil 2 and the second coil 3 may be flat coils.

The magnetic isolator 4 may be a high-permeability ferromagnetic material. The magnetic isolator 4 is disposed between the first upper arm 21 and the second upper arm 31 at the first accommodating slot 11 to isolate magnetic leakage. through. And, a second receiving groove 51 and a third receiving groove 52 are provided on the bottom surface of the second magnetic core body 5, so that the first lower side arm 24 and the third lower side arm 34 are accommodated in The second receiving groove 51 is configured to receive the second lower arm 25 and the fourth lower arm 35 in the third receiving groove 52. In this embodiment, the first side arm 22 and the third side arm 32 are attached to the outer surfaces of respective sides of the first magnetic core body 1 and the second magnetic core body 5, and the second side arm 23 and the fourth side arm 33 are attached to the outer surfaces of the other sides of the first magnetic core body 1 and the second magnetic core body 5, respectively, and the first side arm 22 and the third side arm 32 Symmetrical setting. Furthermore, the first magnetic core body 1, the first coil 2, the second coil 3, the magnetic isolator 4, and the first The two magnetic cores 5 may be bonded and fixed with each other by an adhesive. The adhesive may be a thermosetting adhesive, a thermoplastic adhesive, a silicone adhesive, etc., but is not limited thereto.

Therefore, in conjunction with the third figure, it is possible to prevent the leakage magnetic flux generated by one of the inductors (at the first upper arm 21) from being coupled to the magnetic separator 4 in the two coupled inductors. The other inductor (at the second upper arm 31) achieves complete coupling and transmission of the magnetic flux (line of force) between the two inductors, forming a double inductor (device) that can maintain (design) a stable inductance value.

The discussion above is only a preferred embodiment of this creation, and is not intended to limit the scope of implementation of this creation; therefore, equivalent transformations of shapes, structures, or combinations made without departing from the spirit and scope of this creation are all It should be covered by the patent application scope of this creation.

Claims (3)

An inductor capable of being lifted and coupled includes: a first magnetic core body provided with a first receiving slot thereon; and a first coil provided with a first upper side arm, a first side arm, and a second A side arm, a first lower side arm, and a second lower side arm, the first upper side arm is accommodated in the first accommodation slot; a second coil is provided with a second upper side arm, a third side An arm, a fourth side arm, a third lower side arm, and a fourth lower side arm, the second upper side arm is received in the first receiving slot, and the second upper side arm is adjacent to the first An upper side arm; a magnetic isolator, disposed between the first upper side arm and the second upper side arm at the first receiving slot; a second magnetic core body attached to the bottom surface of the second magnetic core body A second accommodating slot and a third accommodating slot are provided, so that the first lower side arm and the third lower side arm are accommodated in the second accommodating slot, and the second lower side arm and the The fourth lower side arm is accommodated in the third accommodation groove. The boostable coupling inductor described in item 1 of the patent application scope, wherein the first coil and the second coil are flat coils. The boostable coupling inductor according to item 1 of the scope of patent application, wherein the first side arm and the third side arm are attached to the outer surfaces of respective sides of the first magnetic core body and the second magnetic core body. On the other hand, the second side arm and the fourth side arm are attached to outer surfaces of respective other sides of the first magnetic core body and the second magnetic core body.