# US 10,873,356 B2 · Electronic device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,873,356 B2 - Document ID: US10873356B2 - Status: Granted - Kind: B2 - Application number: 16/349,718 - Filed: 2017-03-22 - Published: 2020-06-18 - Granted: 2020-12-22 - Earliest claimed: 2016-11-17 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Qiliang Wang; Xiaolong Wang; Gaobing Lei - Web page: https://patentgrep.com/patent/US10873356B2 ## CPC - H04B 1/3816: Mechanical arrangements for accommodating identification devices, e.g. cards or chips; with connectors for programming identification devices - G06K 7/0021: {for reading/sensing record carriers having surface contacts} - H01R 12/71: for rigid printing circuits or like structures - H01R 13/02: Contact members - H01R 13/627: Snap or like fastening - H01R 13/629: Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure {electrical locking indicators, manufacturing tolerances (separate tools or apparatus H01R43/26)} - H04B: TRANSMISSION - G06K: GRAPHICAL DATA READING (image or video recognition or understanding G06V); PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS - H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS ## Abstract An electronic device includes a printed circuit board and a card holder. The card holder is configured to hold a function card, and the printed circuit board is provided with a groove. The card holder is disposed in the groove. A bottom surface of the groove is provided with n metal solder pads and n printed wires. The n metal solder pads are electrically connected to the n printed wires in a one-to-one correspondence. N terminals in a one-to-one correspondence to the n metal solder pads are disposed on the card holder. Each terminal is provided with a first contact and a second contact. The first contact is connected to and in contact with one of the n metal solder pads. The second contact is configured to connect to and be in contact with a metal contact of the function card placed in the card holder. ## Claims ### Claim 1 An electronic device, comprising: a printed circuit board comprising a groove, wherein a bottom surface of the groove comprises n metal solder pads and n printed wires, and wherein the n metal solder pads are electrically connected to the n printed wires in a one-to-one correspondence; a card tray comprising a function card installation hole matching an outer profile of a function card, wherein the card tray is configured to hold the function card; a card holder configured to hold the card tray, wherein the card holder is disposed in the groove; and n terminals that are in a one-to-one correspondence with the n metal solder pads and that are disposed on the card holder, wherein each of the n terminals comprises a first contact and a second contact, wherein the first contact of each of the n terminals is coupled to and in contact with a corresponding one of the n metal solder pads, wherein the second contact of each of the n terminals is configured to couple to and to be in contact with a metal contact of the function card when the function card is placed in the card holder, and wherein n is an integer greater than one. ### Claim 2 (depends on 1) The electronic device of claim 1, wherein the groove has a depth of 0.2 millimeters to 0.3 millimeters. ### Claim 3 (depends on 1) The electronic device of claim 1, wherein a first end of each of the n terminals is fastened onto the card holder, wherein a second end of each of the n terminals is the first contact, wherein the first contact of each of the n terminals extends through the card holder and is coupled to and in contact with a corresponding one of the n metal solder pads, wherein a middle portion of the n terminals is bent toward the function card to form the second contact, and wherein the second contact is configured to couple to and be in contact with the metal contact when the function card is placed in the card holder. ### Claim 4 (depends on 3) The electronic device of claim 3, further comprising a card cover that covers the card holder, wherein the card cover is snap-fit to the card holder and is fixedly coupled to the printed circuit board. ### Claim 5 (depends on 4) The electronic device of claim 4, wherein the card cover comprises a cover plate portion and a side plate portion, wherein the side plate portion surrounds the cover plate portion and extends toward the printed circuit board, wherein the cover plate portion covers the card holder, wherein a middle portion of the side plate portion is snap-fit to the card holder, and wherein an end portion of the side plate portion is fixedly coupled to the printed circuit board. ### Claim 6 (depends on 5) The electronic device of claim 5, wherein a distance from the end portion of the side plate portion to the cover plate portion is 1 millimeter. ### Claim 7 (depends on 6) The electronic device of claim 6, wherein the card tray is disposed between the card holder and the card cover. ### Claim 8 (depends on 7) The electronic device of claim 7, wherein the side plate portion of the card cover that is closest to a side of the first end of each of the n terminals comprises an opening, and wherein the card tray is configured to be inserted between the card holder and the card cover through the opening. ### Claim 9 (depends on 3) The electronic device of claim 3, wherein the card holder comprises a through-hole, wherein each of the n terminals is located at the through-hole, wherein the first end of each of the n terminals is fastened to a side wall of the through-hole, and wherein the second end of each of the n terminals extends through the through-hole such that the first contact of each of the n terminals is coupled to and in contact with a corresponding one of the n metal solder pads. ### Claim 10 (depends on 9) The electronic device of claim 9, further comprising a card cover that covers the card holder, wherein the card cover is snap-fit to the card holder and is fixedly coupled to the printed circuit board. ### Claim 11 (depends on 9) The electronic device of claim 9, wherein n equals six, seven, or eight. ### Claim 12 (depends on 11) The electronic device of claim 11, further comprising a card cover that covers the card holder, wherein the card cover is snap-fit to the card holder and is fixedly coupled to the printed circuit board. ### Claim 13 (depends on 1) The electronic device of claim 1, wherein each of the n terminals is made of an elastic material, wherein the first contact of each of the n terminals is elastically coupled to and in contact with a corresponding one of the n metal solder pads, and wherein the second contact of each of the n terminals is configured to elastically couple to and be in contact with the metal contact when the function card is placed in the card holder. ### Claim 14 (depends on 13) The electronic device of claim 13, further comprising a card cover that covers the card holder, wherein the card cover is snap-fit to the card holder and is fixedly coupled to the printed circuit board. ### Claim 15 (depends on 14) The electronic device of claim 14, wherein the card cover comprises a cover plate portion and a side plate portion, wherein the side plate portion surrounds the cover plate portion and extends toward the printed circuit board, wherein the cover plate portion covers the card holder, wherein a middle portion of the side plate portion is snap-fit to the card holder, and wherein an end portion of the side plate portion is fixedly coupled to the printed circuit board. ### Claim 16 (depends on 13) The electronic device of claim 13, wherein a first end of each of the n terminals is fastened onto the card holder, wherein a second end of each of the n terminals is the first contact, wherein the first contact of each of the n terminals extends through the card holder and is coupled to and in contact with a corresponding one of the n metal solder pads, wherein a middle portion of each of the n terminals is bent toward the function card to form the second contact, and wherein the second contact of each of the n terminals is configured to couple to and be in contact with the metal contact when the function card is placed in the card holder. ### Claim 17 (depends on 16) The electronic device of claim 16, wherein the card holder comprises a through-hole, wherein each of the n terminals is located at the through-hole, wherein the first end of each of the n terminals is fastened to a side wall of the through-hole, and wherein the second end of each of the n terminals extends through the through-hole such that the first contact of each of the n terminals is coupled to and in contact with a corresponding one of the n metal solder pads. ### Claim 18 (depends on 17) The electronic device of claim 17, further comprising a card cover that covers the card holder, wherein the card cover is snap-fit to the card holder and is fixedly coupled to the printed circuit board. ### Claim 19 (depends on 17) The electronic device of claim 17, wherein n equals six, seven, or eight. ### Claim 20 (depends on 19) The electronic device of claim 19, further comprising a card cover that covers the card holder, wherein the card cover is snap-fit to the card holder and is fixedly coupled to the printed circuit board.