Title:
CIRCUIT BOARD ASSEMBLY AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/222045
Kind Code:
A1
Abstract:
The present application relates to a circuit board assembly and an electronic device. The circuit board assembly comprises a circuit board, an onboard chip, a heat dissipator, a shielding frame and a shielding member. The onboard chip is mounted on a first flat surface of the circuit board; the heat dissipator comprises an attachment surface facing the onboard chip, and a heat conduction layer is provided between the attachment surface and the onboard chip; and the heat dissipator is fixed on the circuit board by means of a fastener, such that the attachment surface is attached to the heat conduction layer. The shielding frame is arranged around the onboard chip, and an annular gap is formed between the shielding frame and the onboard chip. The shielding member is of a hollowed-out structure; the inner edge of the shielding member is fixed onto the onboard chip and the outer edge of the shielding member is in contact with the shielding frame, or the shielding frame is fixed onto the first flat surface, and the outer edge of the shielding member is located on the side of the shielding frame that faces away from the onboard chip, and is spaced apart from the shielding frame; and the shielding member is used for covering the annular gap. The circuit board assembly in the present application has a compact structure and also has a good shielding effect.
Inventors:
XIONG ZHENXING (CN)
ZHAO CAIJUN (CN)
XIONG JIANBO (CN)
ZHUANG BAOSHAN (CN)
ZHAO YATAO (CN)
ZHAO CAIJUN (CN)
XIONG JIANBO (CN)
ZHUANG BAOSHAN (CN)
ZHAO YATAO (CN)
Application Number:
PCT/CN2023/094826
Publication Date:
November 23, 2023
Filing Date:
May 17, 2023
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H05K9/00
Domestic Patent References:
| WO2019032434A1 | 2019-02-14 |
Foreign References:
| CN101754667A | 2010-06-23 | |||
| CN101355868A | 2009-01-28 | |||
| CN101568251A | 2009-10-28 | |||
| CN108112227A | 2018-06-01 | |||
| CN109874285A | 2019-06-11 | |||
| JP2009038053A | 2009-02-19 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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