公开(公告)号：US11108393B2

公开(公告)日：2021-08-31

申请号：US16240096

申请日：2019-01-04

Applicant: Darfon Electronics Corp.

Inventor： Chen Yang ,  Yu-Chun Hsieh ,  Yung-Chih Wang ,  Chia-Hung Liu ,  Ching-Yu Wang ,  Li-Te Chang

IPC: H03K17/969 ,  H03K17/968

Abstract: An optical keyswitch includes a keycap, a supporting mechanism having a protrusion disposed under the keycap to support the keycap to move downward or upward, and a switch module including a circuit board, an emitter, and a receiver. The emitter and the receiver are electrically connected to the circuit board. The emitter emits an optical signal to the receiver. When the keycap is not pressed, the receiver receives the optical signal of a first intensity. When the keycap is pressed, the protrusion moves along with the keycap, and the protrusion changes the optical signal received by the receiver to have a second intensity different from the first intensity, so the switch module is triggered to generate a triggering signal.

公开(公告)号：US20200117277A1

公开(公告)日：2020-04-16

申请号：US16708465

申请日：2019-12-10

Applicant: DARFON ELECTRONICS CORP.

Inventor： Chen Yang ,  Chia-Hung Liu ,  Yung-Chih Wang ,  Yu-Chun Hsieh

IPC: G06F3/01 ,  H01H13/7057 ,  H01H13/85 ,  G06F3/023 ,  G06F3/02

Abstract: A keyswitch with adjustable tactile feedback is adjusted by an adjusting method. The keyswitch includes a baseplate, an upper housing, an upper bushing component, a lower bushing component, a keycap and a recovering component. The baseplate has an electrode module, the upper housing is disposed on the baseplate, the upper bushing component is movably disposed on the upper housing, the lower bushing component is movably located between the baseplate and the upper housing, and the keycap is connected to a connecting portion of the upper bushing component. The lower bushing component can rotate relative to the baseplate to switch between a first position and a second position. The lower bushing component has a first lateral surface and a second lateral surface with different shapes. The recovering component is disposed between the baseplate and the lower bushing component to upwardly push the lower bushing component.

公开(公告)号：US10572018B2

公开(公告)日：2020-02-25

申请号：US16128524

申请日：2018-09-12

Applicant: DARFON ELECTRONICS CORP.

Inventor： Chen Yang ,  Chia-Hung Liu ,  Yung-Chih Wang ,  Yu-Chun Hsieh

IPC: H01H13/7057 ,  G06F3/01 ,  G06F3/023 ,  H01H13/85 ,  G06F3/02

Abstract: A keyswitch with adjustable tactile feedback is adjusted by an adjusting method. The keyswitch includes a baseplate, an upper housing, an upper bushing component, a lower bushing component, a keycap and a recovering component. The baseplate has an electrode module, the upper housing is disposed on the baseplate, the upper bushing component is movably disposed on the upper housing, the lower bushing component is movably located between the baseplate and the upper housing, and the keycap is connected to a connecting portion of the upper bushing component. The lower bushing component can rotate relative to the baseplate to switch between a first position and a second position. The lower bushing component has a first lateral surface and a second lateral surface with different shapes. The recovering component is disposed between the baseplate and the lower bushing component to upwardly push the lower bushing component.

公开(公告)号：US20190163273A1

公开(公告)日：2019-05-30

申请号：US16129813

申请日：2018-09-13

Applicant: DARFON ELECTRONICS CORP.

Inventor： Chen Yang ,  Chia-Hung Liu ,  Yung-Chih Wang ,  Yu-Chun Hsieh

IPC: G06F3/01 ,  G06F3/023 ,  H01H13/85

Abstract: A keyswitch with adjustable tactile feedback is adjusted by an adjusting method. The keyswitch includes a baseplate, an upper housing, an upper bushing component, a lower bushing component, a keycap and a recovering component. The baseplate has an electrode module, the upper housing is disposed on the baseplate, the upper bushing component is movably disposed on the upper housing, the lower bushing component is movably located between the baseplate and the upper housing, and the keycap is connected to a connecting portion of the upper bushing component. The lower bushing component can rotate relative to the baseplate to switch between a first position and a second position. The lower bushing component has a first lateral surface and a second lateral surface with different shapes. The recovering component is disposed between the baseplate and the lower bushing component to upwardly push the lower bushing component.

公开(公告)号：US10079601B2

公开(公告)日：2018-09-18

申请号：US15636651

申请日：2017-06-29

Applicant: DARFON ELECTRONICS CORP.

Inventor： Chia-Hung Liu

IPC: H01H13/00 ,  G06F3/02 ,  H03K17/975 ,  H01H13/705 ,  H03K17/96 ,  H03K17/98

CPC classification number: H03K17/975 ,  G06F3/0216 ,  H01H13/00 ,  H01H13/705 ,  H01H13/85 ,  H01H2215/028 ,  H01H2231/008 ,  H01H2235/01 ,  H01H2235/016 ,  H03K17/9622 ,  H03K17/98 ,  H03K2217/96077

Abstract: A keyswitch includes a base having a pillar, a cap having a rib and movable relative to the base, a sleeve rotatably sleeving the pillar and having first and second top surfaces and convex and concave portions, an elastic member abutting against the sleeve and the base, and a resilient arm abutting against a first or second position on the convex portion with rotation of the sleeve. When the resilient arm abuts against the first position, the rib abuts against the first top surface to prepress the elastic member for generating a first preload. When the cap is pressed for moving the sleeve downward, the resilient arm moves from the first or second position to the concave portion. When the resilient arm abuts against the second position, the rib abuts against the second top surface to prepress the elastic member for generating a second preload larger than the first preload.

公开(公告)号：US20180074587A1

公开(公告)日：2018-03-15

申请号：US15697438

申请日：2017-09-06

Applicant: DARFON ELECTRONICS CORP.

Inventor： Chia-Hung Liu

IPC: G06F3/01 ,  H03K17/96 ,  G06F3/02

CPC classification number: G06F3/016 ,  G06F3/0202 ,  H01H13/85 ,  H01H2215/028 ,  H01H2227/034 ,  H01H2231/008 ,  H01H2233/002 ,  H03K17/9643

Abstract: A keyswitch includes a cap, internal and external sleeves, a resilient arm, a base having a pillar, and an elastic member abutting against the internal sleeve and the base. The internal sleeve jackets the pillar, abuts against the cap and has a first outer annular surface with a transverse slot. The external sleeve jackets the internal sleeve and has a protruding block movably inserted into the transverse slot for guiding the external sleeve to rotate and a second outer annular surface having concave and convex portions and an arc-shaped bar. When the resilient arm abuts against a second position on the convex portion and the cap presses the external sleeve, the resilient arm crosses the arc-shaped bar. When the resilient arm abuts against a first position on the convex portion and the cap presses the external sleeve, the resilient arm does not need to cross the arc-shaped bar.

公开(公告)号：US11469474B2

公开(公告)日：2022-10-11

申请号：US16808029

申请日：2020-03-03

Applicant: Darfon Electronics Corp.

Inventor： Chia-Hung Liu ,  Chien-Hung Chen

IPC: H01M50/262 ,  H01M50/20 ,  H01M50/249 ,  H01M50/244 ,  B62M6/90 ,  B62J43/13 ,  B62J43/20

Abstract: A battery assembly includes a battery holding unit and a battery unit removably held by the battery holding unit. The battery unit includes a battery, a first engaging portion, and a second engaging portion. The battery holding unit includes a holding member selectively engaged with the first engaging portion or the second engaging portion to hold the battery unit at a first position or a second position. When the holding member and the first engaging portion relatively move away from each other along a disengagement direction, the battery unit moves along a detachment direction from the first position to the second position at which the holding member engages with the second engaging portion, and the second engaging portion is allowed to move to disengage from the holding member, so that the battery unit moves again along the detachment direction to be removed from the battery holding unit.

公开(公告)号：US10930451B2

公开(公告)日：2021-02-23

申请号：US16448282

申请日：2019-06-21

Applicant: Darfon Electronics Corp.

Inventor： Yung-Chih Wang ,  Chia-Hung Liu ,  Yu-Chun Hsieh ,  Chen Yang

IPC: H01H13/85 ,  H01H13/52 ,  H01H13/04 ,  H01H13/02 ,  H01H13/14

Abstract: A keyswitch structure includes a base having a positioning means, an cover combined with the base, a plunger with an cam portion movably coupling with the cover relative to the base, a restoring unit disposed between the base and the plunger to provide a restoring force to enable the plunger to move along a direction away from the base, a tactile feedback member having a positioning portion positioned by the positioning means and an extending arm extending across a moving path of the cam portion, and an adjusting unit being movable to drive the positioning portion to shift, so that the tactile feedback member has a first deformation or a second deformation, and a pressing force required for the cam portion to pass the extending arm when the plunger moves toward the base is changed.

公开(公告)号：US20200244261A1

公开(公告)日：2020-07-30

申请号：US16746997

申请日：2020-01-20

Applicant: DARFON ELECTRONICS CORP.

Inventor： Yu-Chun Hsieh ,  Chen Yang ,  Chia-Hung Liu

IPC: H03K17/968

Abstract: A keyswitch includes a circuit board, a bottom board abutting against the circuit board, a cap, a light receiver and a light emitter disposed on the circuit board and opposite to each other, a base disposed on the circuit board, a cover disposed on the base, a first elastic member disposed through the cover and the base, a support device, and a second elastic member fixed to the base and having a flexible rod. The support device is movably connected to the cap and bottom board and has a sheet structure. When the cap is pressed, the sheet structure blocks light transmission between the light emitter and the light receiver to generate a triggering signal. When the cap is pressed to make the flexible rod deform downward with the sheet structure and then cross the sheet structure, the flexible rod is released to collide with the cover to make sound.

公开(公告)号：US10431402B2

公开(公告)日：2019-10-01

申请号：US16108070

申请日：2018-08-21

Applicant: DARFON ELECTRONICS CORP.

Inventor： Yu-Chun Hsieh ,  Chia-Hung Liu ,  Yung-Chih Wang ,  Chen Yang

IPC: H01H13/10 ,  H01H13/04 ,  H01H3/12 ,  H01H13/85 ,  H01H13/705

Abstract: A button switch connected to a cap and includes a base having a pillar, a flexible acoustic member having fixing and flexible rods, a sleeve, an upward-force-applying member abutting against the sleeve and the base, a resilient arm, and a cover disposed on the base. The sleeve rotatably jackets the pillar, passes through the cover to be connected to the cap, and has first and second convex portions, first and second concave portions, and a protruding edge located between the second convex portion and the second concave portion. The resilient arm selectively abuts against a first or second position on the first convex portion. When the resilient arm abuts against the first position and the protruding edge is located above the flexible rod, the flexible rod crosses the protruding edge and then collides with the cover to make a sound when the sleeve receives an external force to move downward.