Integrally-formed inductor

Abstract

The utility model discloses an integrally formed inductor, which comprises a terminal and an inductor main body, the inductor main body is integrally formed, the inductor main body is provided with a placing groove, the placing groove penetrates through two sides of the inductor main body, the terminal is arranged in the placing groove, and the terminal is arranged in the placing groove. The two ends of the terminal are arranged on the outer side of the inductor body and attached to the outer surface of the inductor body, and a cutting area is arranged on the terminal.

Description

Technical Field

[0001] The utility model belongs to the field of electronic components, and particularly relates to an integrally formed inductor. Background Art

[0002] An integrally formed inductor, also known as a molded inductor or a formed inductor, is an electronic component commonly used in power circuits to filter, suppress electromagnetic interference (EMI), and stabilize current. When the switching frequency of the server power supply increases, the volume of the magnetic component can be reduced and the power density can be increased.

[0003] In the prior art, as disclosed in a kind of inductor terminal and inductor disclosed in Chinese Patent Publication No. CN 205194488 U, a thickness end face is used as a connection face without the need for bending generation, and the structure is simple and easy to process. However, in the prior art, the terminal structure is complex, resulting in a cumbersome production process and low production efficiency. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an integrally formed inductor to solve the problems of complex terminal structure, cumbersome production process and low production efficiency in the prior art.

[0005] To this end, the utility model provides an integrally formed inductor, including: a terminal and an inductor body, the inductor body is integrally formed, the inductor body is provided with a placement groove, the placement groove penetrates both sides of the inductor body, the terminal is in the placement groove, both ends of the terminal are outside the inductor body and fit with the outer surface of the inductor body, and a cutting area is provided on the terminal.

[0006] Preferably, the terminal includes a main body portion and a bending portion, the bending portions are arranged at both ends of the main body portion, the main body portion is inside the inductor body, and the bending portions fit with the inductor body.

[0007] Preferably, terminal grooves are provided at both ends of the inductor body, and the terminal grooves are matched with the bending portions. The bending portions are closely attached in the terminal grooves to meet the requirements of SMD (Surface-Mounted Device).

[0008] Preferably, the cutting area is provided on the main body portion.

[0009] Preferably, there are two cutting areas, symmetrically arranged on both sides of the main body portion. Since the inductance value cannot reach the expected effect in the non-cutting state, in order to improve the inductance value, a cutting area is provided to increase the inductance value of the inductor.

[0010] Preferably, the cutting area is rectangular.

[0011] Preferably, the length of the cutting area accounts for 40%-90% of the length of the main body part.

[0012] More preferably, the length of the cutting area accounts for 80%-90% of the length of the main body part.

[0013] Preferably, the width of the cutting area accounts for 10%-40% of the width of the main body part.

[0014] More preferably, the width of the cutting area accounts for 30%-40% of the width of the main body part.

[0015] Preferably, the cross-section of the inductor main body is one of a rectangle, a circle or a polygon.

[0016] Preferably, the inductor main body is made of a soft magnetic material. The inductor main body is obtained by powder molding of a soft magnetic material.

[0017] Advantageous effects:

[0018] 1. The present utility model provides an integrally formed inductor with a simple terminal structure. The terminal cutting area can be quickly produced by stamping, thus simplifying the production process and reducing costs.

[0019] 2. In the present utility model, the ratios of the length and width of the cutting area to the main body part are set, and appropriate parameters are selected to further improve the inductance value of the inductor.

[0020] 3. In the present utility model, the bending part closely adheres to the terminal groove, meeting the requirements of SMD. Description of the drawings

[0021] 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 invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic structural diagram of an embodiment of an integrally formed inductor provided by the present utility model.

[0023] Figure 2 It is a schematic terminal structure diagram of an embodiment of an integrally formed inductor provided by the present utility model.

[0024] Figure 3 It is a schematic inductor main body structure diagram of an embodiment of an integrally formed inductor provided by the present utility model.

[0025] In the figure, 1 is a terminal, 11 is a cutting area, 12 is a main body part, 13 is a bending part, 2 is an inductor main body, 21 is a placement groove, and 22 is a terminal groove. Detailed Description of the Specific Embodiment

[0026] The content of the present utility model can be more easily understood by referring to the following detailed description of the preferred embodiments of the present utility model and the included examples. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the art to which this invention belongs. In case of conflict, the definitions in this specification shall prevail.

[0027] Example 1:

[0028] The present utility model provides an integrally formed inductor with a simple terminal structure. The terminal cutting area can be rapidly produced using stamping, thereby simplifying the production process, reducing costs, and meeting the requirements of SMD.

[0029] There is provided an integrally formed inductor as shown in Figures 1-3 which includes: a terminal 1 and an inductor main body 2. The inductor main body 2 is integrally formed. The inductor main body 2 is provided with a placement groove 21 that penetrates both sides of the inductor main body 2. The terminal 1 is within the placement groove 21, and both ends of the terminal 1 are outside the inductor main body 2 and are in contact with the outer surface of the inductor main body 2. A cutting area 11 is provided on the terminal 1.

[0030] The terminal 1 includes a main body part 12 and a bending part 13. The bending part 13 is provided at both ends of the main body part 12. The main body part 12 is inside the inductor main body 2, and the bending part 13 is in contact with the inductor main body 2. Terminal grooves 22 are provided at both ends of the inductor main body 2, and the terminal grooves 22 cooperate with the bending part 13. The bending part 13 is closely attached within the terminal grooves 22, meeting the requirements of SMD.

[0031] The cutting area 11 is provided on the main body part 12. There are two cutting areas 11, symmetrically arranged on both sides of the main body part 12. The cutting area 11 is rectangular. The length of the cutting area 11 accounts for 80% of the length of the main body part 12, and the width of the cutting area 11 accounts for 30% of the width of the main body part 12.

[0032] The cross-section of the inductor main body 2 is rectangular.

[0033] The inductor main body 2 is made of a soft magnetic material. The inductor main body 2 is obtained by powder molding of a soft magnetic material.

[0034] The inductance value obtained from the test in Example 1 is 85 nH.

[0035] Example 2:

[0036] The difference between Example 2 and Example 1 is that the length of the cutting area 11 accounts for 85% of the length of the main body 12, and the width of the cutting area 11 accounts for 35% of the width of the main body 12.

[0037] The inductance value obtained by testing in Example 2 is 90 nH.

[0038] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An integrally formed inductor, characterized in that, Comprising: A terminal and an inductor body, the inductor body being integrally formed, the inductor body being provided with a placement groove that penetrates both sides of the inductor body, the terminal being within the placement groove, both ends of the terminal being outside the inductor body and fitting against the outer surface of the inductor body, and a cutting area being provided on the terminal.

2. The one-piece molded inductor according to claim 1, wherein The terminal includes a main body portion and a bent portion, the bent portion being provided at both ends of the main body portion, the main body portion being inside the inductor body, and the bent portion fitting against the inductor body.

3. The one-piece inductor according to claim 2, characterized in that, Terminal grooves are provided at both ends of the inductor body, and the terminal grooves cooperate with the bent portions.

4. The one-piece molded inductor according to claim 2, characterized in that, The cutting area is provided on the main body portion.

5. The one-piece molded inductor according to claim 4, characterized in that, The cutting area is rectangular.

6. The one-piece inductor according to claim 5, wherein There are two cutting areas, symmetrically arranged on both sides of the main body portion.

7. An integrally formed inductor according to claim 5 or 6, characterized in that, The length of the cutting area accounts for 40%-90% of the length of the main body portion.

8. An integrally formed inductor according to claim 5 or 6, characterized in that, The width of the cutting area accounts for 10%-40% of the width of the main body portion of the terminal.

9. The integrated inductor according to claim 1, wherein The cross-section of the inductor body is one of a rectangle, a circle, or a polygon.

10. A one-piece formed inductor according to claim 1, wherein The inductor body is made of a soft magnetic material.

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