Invention Grant
- Patent Title: Keyboard switch employing a resistance strain gauge
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Application No.: US15893848Application Date: 2018-02-12
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Publication No.: US10211010B2Publication Date: 2019-02-19
- Inventor: Fuxi Wu
- Applicant: DONGGUAN CITY KAIHUA ELECTRONICS CO., LTD
- Applicant Address: CN Tangxia Town, Dongguan
- Assignee: DONGGUAN CITY KAIHUA ELECTRONICS CO., LTD.
- Current Assignee: DONGGUAN CITY KAIHUA ELECTRONICS CO., LTD.
- Current Assignee Address: CN Tangxia Town, Dongguan
- Agency: Rankin, Hill & Clark LLP
- Priority: CN201510509245 20150819
- Main IPC: G05G9/047
- IPC: G05G9/047 ; H01H13/00 ; H01H13/14 ; H01H13/20 ; H01H13/705

Abstract:
A keyboard switch includes a base (1), a resistance-type pressure sensor (5) installed on the base (1), a spring (3) arranged in the base (1) and capable of being pressed on the resistance-type pressure sensor (5), a button (4) which presses the spring (3) and is in sliding fit with the base (1), and an upper cover (2) which presses the button (4) and is adaptive to the base (1). The resistance-type pressure sensor (5) includes two terminals (53) and an elastic sensitive element (51), the elastic sensitive element (51) being internally provided with a resistance strain gauge (52), and two leads (54) extending outwards from the resistance strain gauge (52); one ends of the two terminals (53) are respectively connected to the two leads (54), and the other ends of the two terminals (53) are separately connected to a PCB (6).
Public/Granted literature
- US20180166231A1 KEYBOARD SWITCH Public/Granted day:2018-06-14
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