Integrally-formed elevated inductor

Abstract

The utility model belongs to the technical field of inductors, and particularly relates to an integrally-formed elevated inductor which is integrally formed by pressing and comprises a metal magnetic block, an auxiliary frame and a coil which are located on the two sides of the metal magnetic block are formed on the metal magnetic block through pressing, and the auxiliary frame and the coil are integrally formed through stamping. According to the auxiliary frame, one end of the coil is located in the metal magnetic block, the other end of the coil extends towards the side face and is bent to make contact with the circuit board, and the proportion of the coil in the metal magnetic block is larger than that of the auxiliary frame. Firstly, a copper sheet stamping structure is used as the coil, and the coil design can be maximized. The problems of low effective space utilization rate of coil welding external lead frames and high direct current resistance caused by welding are avoided. According to the utility model, under the condition that the direct-current resistance is very low, the inductance value can be higher, and meanwhile, higher current can be resisted; and secondly, the stamping structure terminal and the coil are integrally formed, so that the consistency is high, the electrical performance is stable, and the size of the terminal is more stable and reliable.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the inductance technical field, concretely relates to a one-piece frame high inductance. BACKGROUND

[0002] In the electronic technology field, the magnetic element is the core component of energy conversion and storage, and its performance is related to the efficiency and performance of the whole system; the inductance is the most common component in electronic equipment, and is also one of the important components in the circuit, which is widely used in various circuits, and can achieve the functions of filtering, energy storage, matching and resonance.

[0003] According to the search, the publication (announcement) number: CN111312492A discloses a lead frame and a vertical coupling inductance and an inductance processing method using the lead frame, which discloses "including an inductance magnet and at least one group of inductance conductors embedded in the inductance magnet, each group of inductance conductors includes two independently arranged coupling leads, the coupling leads are arranged in parallel and the plane where the coupling leads are arranged is perpendicular to the upper end surface of the inductance magnet, the two ends of the coupling leads are higher than the upper end surface of the inductance magnet, and the coupling inductance processed by the technical scheme has the advantages of simple lead frame structure, excellent use effect, vertical and one-piece structure, simple production process, automatic production, high frequency, no noise, super large current, high insulation degree and other advantages, and the technical effect is achieved".

[0004] Firstly, the method is subject to the external lead frame, and the structure of the coil cannot be optimized, so the performance cannot be optimized, and the efficiency and storage performance of the inductance are reduced.

[0005] Secondly, as the integration on the PCB board becomes higher and higher, the arrangement space of the board surface becomes more and more limited, so more devices are considered in the vertical height, but under the requirements of the structure, terminal strength and consistency of the frame high inductance, most of the existing ones need to be punched with external terminals, and then welded with the coil, which causes the rise of DCR and the limitation of design space, so that the optimal electrical performance cannot be achieved.

[0006] To solve the above problems, the one-piece frame high inductance is provided in the application. UTILITY MODEL CONTENTS

[0007] To solve the above problems in the prior art, the utility model provides a one-piece frame high inductance, which has the characteristics of high stability and compact structure.

[0008] In order to achieve the above object, the utility model provides the following technical scheme: A kind of integrally formed high inductance, inductance is integrally formed, including metal magnetic block, the metal magnetic block is formed with the auxiliary frame and coil located at both sides by pressing respectively, the auxiliary frame and coil are integrally formed by stamping, the auxiliary frame, coil one end is located in metal magnetic block and other end is bent to contact with circuit board and stretch to side surface, the proportion of coil in metal magnetic block is greater than auxiliary frame, part of auxiliary frame and coil in metal magnetic block is in the same plane, the distribution direction of auxiliary frame and coil is parallel with circuit board and is equipped with the connecting end matched therewith, the auxiliary frame and coil place metal magnetic block in overhead state on circuit board, the cross section of auxiliary frame and coil can be rectangular, rhombic, semiseal structure of circular.

[0009] As a preferred technical scheme of the utility model, part of auxiliary frame in the metal magnetic block is equipped with symmetrical notches, and a hole is formed at the bending part of the auxiliary frame.

[0010] As a preferred technical scheme of the utility model, the tail of the auxiliary frame is equipped with a second hole and a first foot, and the first foot is cut after the auxiliary frame and the metal magnetic block are formed, and two supporting feet are formed on both sides of the second hole for welding with the circuit board.

[0011] As a preferred technical scheme of the utility model, the coil includes two pins and a U-shaped coil, the two pins are symmetrically arranged and connected by the U-shaped coil at the same end, and the U-shaped coil protrudes from the pin and is located in the U-shaped coil.

[0012] As a preferred technical scheme of the utility model, the other end of the pin is formed with a second foot, and the second foot is cut after the coil and the metal magnetic block are formed, and the two pins are welded with the circuit board away from the end of the U-shaped coil.

[0013] As a preferred technical scheme of the utility model, the auxiliary frame and the coil are bent close to the side surface of the metal magnetic block, and the bending surfaces of the auxiliary frame and the coil are parallel to each other.

[0014] As a preferred technical scheme of the utility model, the auxiliary frame and the coil are straight angle bent.

[0015] As a preferred technical scheme of the utility model, the cross section of the auxiliary frame and the coil is rectangular.

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] First, the copper sheet stamping structure as a coil, the coil can be designed maximum. Avoid the coil welding external lead frame effective space utilization is low, and the welding causes the problem of high direct current resistance. The direct current resistance of the utility model can be very low, the inductance can also be higher, and it can also resist higher current;

[0018] Second, the stamping structure terminal and the coil are integrally formed, have high consistency, stable electrical performance, and the terminal size is more stable and reliable;

[0019] Finally, by setting the inductor frame high, the space left below after the inductor is connected to the circuit board can still arrange other devices, and the space is more utilized. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with embodiments of the utility model, and do not constitute the limitation to the utility model. In the drawings:

[0021] Figure 1 It is the structural schematic diagram of the utility model;

[0022] Figure 2 It is the structural schematic diagram of the auxiliary frame and the coil distribution relationship in the utility model;

[0023] Figure 3 It is the semi-finished product structural schematic diagram of the metal magnetic block formed in Figure 2 ;

[0024] Figure 4 It is the structural schematic diagram of the auxiliary frame and the coil bending cut when the bottom foot is cut off in 3;

[0025] In the drawing: 1, metal magnetic block; 2, auxiliary frame; 21, notch; 22, No. 1 hole; 23, No. 2 hole; 24, first bottom foot; 3, coil; 31, pin; 32, U-shaped ring; 33, second bottom foot. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, apparently, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0027] EMBODIMENT

[0028] Please refer to Figures 1-4The utility model provides the following technical scheme: An integral forming high inductance, inductance integral compression forming, including metal magnetic block 1, metal magnetic block 1 is shaped with the auxiliary frame 2 and coil 3 of being located at both sides respectively through compression, auxiliary frame 2 and coil 3 are all through stamping integral forming, auxiliary frame 2, coil 3 one end is located in metal magnetic block 1 and the other end stretches to the side and is bent to contact with circuit board, the proportion of coil 3 in metal magnetic block 1 is greater than auxiliary frame 2, the part of auxiliary frame 2, coil 3 in metal magnetic block 1 is in the same plane, the distribution direction of auxiliary frame 2, coil 3 is parallel with circuit board and is all equipped with the connecting end matched with it, auxiliary frame 2 and coil 3 place metal magnetic block 1 on circuit board in the state of being in the air, the section of auxiliary frame 2, coil 3 can be half seal structure of rectangle, rhombus, circular, the aerial position between metal magnetic block 1 and circuit board in this embodiment can be arranged other electronic components, and it is favorable to reduce space.

[0029] Specifically, the part of auxiliary frame 2 in metal magnetic block 1 is provided with symmetrical notches 21, and a first hole 22 is formed at the bending portion of auxiliary frame 2. In this embodiment, the notches 21 enhance the stability of the connection between auxiliary frame 2 and metal magnetic block 1, and the first hole 22 facilitates the bending of auxiliary frame 2.

[0030] Specifically, the tail portion of auxiliary frame 2 is provided with a second hole 23 and a first foot 24. After the formation of auxiliary frame 2 and metal magnetic block 1, the first foot 24 is cut off and forms two support feet on both sides of the second hole 23 for welding with the circuit board. In this embodiment, the second hole 23 facilitates the welding and fixation between auxiliary frame 2 and the circuit board, and the first foot 24 ensures the bending consistency of the support feet on both sides of the second hole 23, facilitating the connection with the circuit board.

[0031] Specifically, coil 3 includes two pins 31 and a U-shaped coil 32. The two pins 31 are symmetrically arranged and connected by the U-shaped coil 32 at the same end. The U-shaped coil 32 protrudes from the pins 31 and is located in the U-shaped coil 32. In this embodiment, the protrusion of the U-shaped coil 32 from the pins 31 enhances the stability of the connection between coil 3 and metal magnetic block 1.

[0032] Specifically, the other end of pin 31 is formed with a second foot 33. After the formation of coil 3 and metal magnetic block 1, the second foot 33 is cut off, and the ends of the two pins 31 away from the U-shaped coil 32 are welded with the circuit board. In this embodiment, by integrally forming the second foot 33 on coil 3, the second foot 33 can bend the two pins 31 by the same angle at the same time when coil 3 is bent, ensuring consistency.

[0033] Specifically, the auxiliary frame 2 and the coil 3 are bent close to the side surface of the metal magnetic block 1, and the bent surfaces of the auxiliary frame 2 and the coil 3 are parallel to each other; the cutting surfaces of the auxiliary frame 2 and the coil 3 are flush; the auxiliary frame 2 and the coil 3 are right-angle bent; in the embodiment, the supporting legs are close to the outside of the metal magnetic block 1; the auxiliary frame 2 and the coil 3 can reliably support the metal magnetic block 1 after being welded, thereby ensuring the reliability of the entire inductor.

[0034] Specifically, the auxiliary frame 2 and the coil 3 are rectangular in cross section; in the embodiment, the rectangular shape is easy to process, has high stamping stability, and has high reliability of the structure itself.

[0035] Working principle and use process of the utility model:

[0036] A copper sheet with appropriate thickness is selected, the surface of the copper sheet is smooth, the auxiliary frame 2 and the coil 3 with the size shown in the figure are formed by stamping, the auxiliary frame 2 and the coil 3 are positioned in a mold, and a composite metal powder material with a magnetic permeability of 35 is adopted;

[0037] The auxiliary frame 2 and the coil 3 are pressed and formed and are baked and solidified;

[0038] The first bottom leg 24 on the auxiliary frame 2 and the second bottom leg 33 on the coil 3 are cut, and then the auxiliary frame 2 and the coil 3 are bent and formed on the metal magnetic block 1.

[0039] Finally, it should be noted that: the above only for preferred embodiments of the utility model, and not for limiting the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A one-piece elevated inductor, the inductor being integrally formed, characterized in that: The application relates to a metal magnetic block (1) which is formed by pressing and is provided with auxiliary frames (2) and coils (3) on both sides, the auxiliary frames (2) and the coils (3) are integrally formed by stamping, one end of the auxiliary frame (2) and the coil (3) is located in the metal magnetic block (1) and the other end extends to the side and is bent to contact a circuit board, the proportion of the coil (3) in the metal magnetic block (1) is larger than that of the auxiliary frame (2), the auxiliary frame (2) and the coil (3) in the metal magnetic block (1) are located in the same plane, the distribution direction of the auxiliary frame (2) and the coil (3) is parallel to the circuit board, and the auxiliary frame (2) and the coil (3) are provided with matched connecting ends, the auxiliary frame (2) and the coil (3) are arranged in a suspended state on the circuit board, and the cross section of the auxiliary frame (2) and the coil (3) can be in a half-sealing structure of a rectangle, a rhombus or a circle.

2. The one-piece elevated inductor of claim 1, wherein: The part of the auxiliary frame (2) in the metal magnetic block (1) is provided with symmetrical notches (21), and a first hole (22) is formed at the bent part of the auxiliary frame (2).

3. The one-piece elevated inductor of claim 2, wherein: The tail of the auxiliary frame (2) is provided with a second hole (23) and a first bottom foot (24), the first bottom foot (24) is cut off after the auxiliary frame (2) and the metal magnetic block (1) are formed, and two supporting feet for welding with the circuit board are formed at the two sides of the second hole (23).

4. The one-piece elevated inductor of claim 1, wherein: The coil (3) comprises two pins (31) and a U-shaped coil (32), the two pins (31) are symmetrically arranged and are connected by the U-shaped coil (32) at the same end, the U-shaped coil (32) is larger than the pin (31) in size and is located in the U-shaped coil (32).

5. The one-piece elevated inductor of claim 4, wherein: The other end of the pin (31) is formed with a second bottom foot (33), the second bottom foot (33) is cut off after the coil (3) and the metal magnetic block (1) are formed, and the end, away from the U-shaped coil (32), of the two pins (31) is welded with the circuit board.

6. The one-piece elevated inductor of claim 1, wherein: The auxiliary frame (2) and the coil (3) are bent close to the side surface of the metal magnetic block (1), and the bent surfaces of the auxiliary frame (2) and the coil (3) are parallel to each other, and the cut surfaces of the auxiliary frame (2) and the coil (3) are flush.

7. The one-piece elevated inductor of claim 1, wherein: The auxiliary frame (2) and the coil (3) are right-angle bent.

8. The one-piece elevated inductor of claim 1, wherein: The cross section of the auxiliary frame (2) and the coil (3) is rectangular.

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