IP Library › Granted Patent US 11,887,772
Granted Patent B2
US 11,887,772 · App. 16/289,192 · Granted Jan 30, 2024

Surface mount inductor

Inventors: Takumi Arai (Nagaokakyo, JP); Ryuta Uematsu (Nagaokakyo, JP); Koichi Saito (Nagaokakyo, JP); Kazuhide Kudo (Nagaokakyo, JP)
Assignee: Murata Manufacturing Co., Ltd.
H01F27/292H01F17/06H01F27/24H01F27/28H01F27/2847H01F2017/048
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Quick Facts
Patent No.
US 11,887,772
App. No.
16/289,192
Granted
Jan 30, 2024
Kind
B2
Abstract

A surface mount inductor includes a molded body made of a composite material containing magnetic powder, and a metal plate including a first metal plate portion embedded in the molded body and a second metal plate portion extending from the first metal plate portion to an outside of the molded body. The second metal plate portion is extended from a side surface or mounting surface side of the molded body, is arranged along the molded body with a bent portion, and forms an external terminal arranged at least on the mounting surface side of the molded body. The external terminal includes a plating layer on a surface on an opposite side from a surface facing the molded body, and does not include a plating layer on the surface facing the molded body.

Claims (46)

1. A surface mount inductor comprising:

a molded body made of a composite material containing magnetic powder; and

a metal plate including a first metal plate portion embedded in the molded body and a second metal plate portion extending from the first metal plate portion to an outside of the molded body,

wherein

the second metal plate portion is extended from a side surface or mounting surface side of the molded body, is arranged along the molded body with a bent portion, and forms an external terminal arranged at least on the mounting surface side of the molded body,

the external terminal includes a plating layer on a surface on an opposite side from a surface facing the molded body, and does not include any plating layer on the entire surface facing the molded body,

the first metal plate portion constitutes a coil conductor, and

the plating layer is provided on both the coil conductor and the external terminal.

2. The surface mount inductor according to claim 1 , wherein

the first metal plate portion includes the plating layer on a surface which is continuous with the surface of the external terminal including the plating layer.

3. The surface mount inductor according to claim 1 , wherein

the molded body includes a recessed portion for housing the external terminal on the mounting surface side.

4. The surface mount inductor according to claim 1 , wherein

the second metal plate portion is extended from the side surface of the molded body.

5. The surface mount inductor according to claim 1 , wherein

the second metal plate portion is extended from the mounting surface side of the molded body.

6. The surface mount inductor according to claim 1 , wherein

at least a part of a surface of the second metal plate portion facing the molded body is embedded in the molded body.

7. The surface mount inductor according to claim 1 , wherein

the plating layer includes a nickel plating layer and a tin plating layer arranged on the nickel plating layer.

8. The surface mount inductor according to claim 2 , wherein

the molded body includes a recessed portion for housing the external terminal on the mounting surface side.

9. The surface mount inductor according to claim 2 , wherein

the second metal plate portion is extended from the side surface of the molded body.

10. The surface mount inductor according to claim 3 , wherein

the second metal plate portion is extended from the side surface of the molded body.

11. The surface mount inductor according to claim 2 , wherein

the second metal plate portion is extended from the mounting surface side of the molded body.

12. The surface mount inductor according to claim 3 , wherein

the second metal plate portion is extended from the mounting surface side of the molded body.

13. The surface mount inductor according to claim 2 , wherein

at least a part of a surface of the second metal plate portion facing the molded body is embedded in the molded body.

14. The surface mount inductor according to claim 3 , wherein

at least a part of a surface of the second metal plate portion facing the molded body is embedded in the molded body.

15. The surface mount inductor according to claim 4 , wherein

at least a part of a surface of the second metal plate portion facing the molded body is embedded in the molded body.

16. The surface mount inductor according to claim 5 , wherein

at least a part of a surface of the second metal plate portion facing the molded body is embedded in the molded body.

17. The surface mount inductor according to claim 2 , wherein

the plating layer includes a nickel plating layer and a tin plating layer arranged on the nickel plating layer.

18. The surface mount inductor according to claim 3 , wherein

the plating layer includes a nickel plating layer and a tin plating layer arranged on the nickel plating layer.

19. The surface mount inductor according to claim 4 , wherein

the plating layer includes a nickel plating layer and a tin plating layer arranged on the nickel plating layer.

20. The surface mount inductor according to claim 5 , wherein

the plating layer includes a nickel plating layer and a tin plating layer arranged on the nickel plating layer.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 5, 2019
From: ARAI, TAKUMI; UEMATSU, RYUTA; SAITO, KOICHI; KUDO, KAZUHIDE
To: MURATA MANUFACTURING CO., LTD.
Reel/Frame 048810/0885 →
Priority Claims (1)
JP 2018-036874 · Mar 1, 2018 · national
Continuity (1)
Related Publication 20190272945A1 · Sep 5, 2019