Electromagnetic wave shielding housing, inverter part, air conditioner part, and automotive part

Patent metadata

Field	Value
Publication number	US-11765872-B2
Application number	US-202017786056-A
Country	US
Kind code	B2
Filing date	Nov 19, 2020
Priority date	Dec 24, 2019
Publication date	Sep 19, 2023
Grant date	Sep 19, 2023

Abstract

A housing (121) having an electromagnetic shielding property includes a resin molded body (101), which is a cured product of a thermosetting resin composition, and a plating layer (103) provided on a surface of the resin molded body (101) (cured product), in which the plating layer (103) includes a Cu layer (first plating layer (105)), and a thickness of the Cu layer (first plating layer (105)) is 2 μm or more and 30 μm or less.

First claim

The invention claimed is:

1. An electromagnetic wave shielding housing comprising:
a cured product of a thermosetting resin composition, wherein the thermosetting resin composition is phenol resin composition; and
a plating layer provided on a surface of the cured product,
wherein the phenol resin composition includes the following components (A) and (B);
(A) a phenol resin including a resol-type phenol resin and a novolac-type phenol resin, and
(B) core-shell-type elastomer particles,
the plating layer includes a Cu layer, and
a thickness of the Cu layer is 2 μm or more and 30 μm or less.

2. The electromagnetic wave shielding housing according to claim 1 ,
wherein, for the cured product obtained by molding and then curing the thermosetting resin composition, a linear expansion coefficient in a range of 40° C. to 150° C., as measured by thermomechanical analysis at a temperature rise rate of 5° C./min, is 5 ppm/° C. or more and 25 ppm/° C. or less.

3. The electromagnetic wave shielding housing according to claim 1 ,
wherein a flexural strength of the cured product of the thermosetting resin composition is 140 MPa or more.

4. The electromagnetic wave shielding housing according to claim 1 ,
wherein a 90° peel strength of the cured product of the thermosetting resin composition measured by a 90° peel under the following conditions is 4 N/cm or more
peel speed: 50 mm/min
adherend: copper foil.

5. The electromagnetic wave shielding housing according to claim 1 ,
wherein the plating layer includes a Ni-containing plating layer provided outside the Cu layer in a lamination direction.

6. The electromagnetic wave shielding housing according to claim 5 ,
wherein a thickness of the Ni-containing plating layer is 0.3 μm or more and 20 μm or less.

7. The electromagnetic wave shielding housing according to claim 1 ,
wherein the plating layer includes a permalloy layer provided outside the Cu layer in a lamination direction.

8. The electromagnetic wave shielding housing according to claim 1 ,
wherein the plating layer includes a Ni-containing plating layer between the Cu layer and the cured product.

9. The electromagnetic wave shielding housing according to claim 1 ,
wherein an electromagnetic wave shielding performance due to a structure with the cured product and the plating layer provided on the surface of the cured product is 40 dB or more at a frequency of 10 MHz.

10. The electromagnetic wave shielding housing according to claim 1 ,
wherein an electromagnetic wave shielding performance due to a structure with the cured product and the plating layer provided on the surface of the cured product is 60 dB or more at a frequency of 100 MHz.

11. An inverter part comprising:
the electromagnetic wave shielding housing according to claim 1 .

12. An air conditioner part comprising:
the electromagnetic wave shielding housing according to claim 1 .

13. An automotive part comprising:
the electromagnetic wave shielding housing according to claim 1 .

14. An electromagnetic wave shielding housing comprising:
a cured product of a thermosetting resin composition, wherein the thermosetting resin composition is phenol resin composition; and
a plating layer laminated on a surface of the cured product,
wherein the phenol resin composition includes the following components (A) and (B);
(A) a phenol resin including a resol-type phenol resin and a novolac-type phenol resin, and
(B) core-shell-type elastomer particles, and
an electromagnetic wave shielding performance due to a structure with the cured product and the plating layer is 40 dB or more at a frequency of 10 MHz.

15. The electromagnetic wave shielding housing according to claim 14 ,
wherein the electromagnetic wave shielding performance due to the structure with the cured product and the plating layer is 60 dB or more at a frequency of 100 MHz.

Assignees

• Sumitomo Bakelite Co

Inventors

• Ochiai Yuki
• Mochizuki Shunsuke
• OKASAKA Shu

Classifications

• H10W76/15

  Containers comprising an insulating or insulated base · CPC title

• H05K9/0045 Primary

  being rigid plastic containers having a coating of shielding material · CPC title

• H05K9/003 Primary

  made from non-conductive materials comprising an electro-conductive coating (H05K9/0031 takes precedence) · CPC title

• H05K9/0084

  comprising a single continuous metallic layer on an electrically insulating supporting structure, e.g. metal foil, film, plating coating, electro-deposition, vapour-deposition · CPC title

• H05K9/0088

  comprising a plurality of shielding layers; combining different shielding material structure · CPC title