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公开(公告)号：US10068726B2
公开(公告)日：2018-09-04
申请号：US15422443
申请日：2017-02-01
Inventor： Rui-Ming Liao , Chih-Chung Yen , Hung-Chieh Lo , Chia-Hung Liu
Abstract: A keyswitch uses a combination of springs connected in serial for providing a return force to a keycap of the keyswitch. When the keycap moves toward a base of the keyswitch beyond a transition position, one of the springs stops continuously deforming. It leads to an increment of the elastic coefficient of the combination of springs and an increment of the elastic stored energy by the combination of springs. Therefore, during a pressing on the keycap, the keycap can provide a light force feedback and then a heavy force feedback to a user. Further, the keyswitch can use a switch with a lateral motion, which can reduce influence of a resilient force produced by the switch on the up and down movement of the keycap. The keyswitch also can use an elastic piece disposed beside the keycap, which can provide a tactile feedback to the user.
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公开(公告)号：US20170221652A1
公开(公告)日：2017-08-03
申请号：US15404212
申请日：2017-01-12
Inventor： Rui-Ming Liao , Chih-Chung Yen , Chia-Hung Liu
CPC classification number: H01H13/023 , G02B6/0006 , G02B6/0008 , H01H1/24 , H01H3/42 , H01H2205/004 , H01H2219/014 , H01H2219/056 , H01H2219/062 , H01H2219/0621
Abstract: An illuminated keyswitch includes a base, a keycap, a lift mechanism, and a light source. The keycap includes a cap body and a light guiding rod. The lift mechanism is connected to between the light guiding rod and the base, such that the keycap can vertically move relative to the base through the lift mechanism. The light source is disposed between the light guiding rod and the base and emits light toward the light guiding rod. The light enters the light guiding rod through an end portion of the light guiding rod and then emits out the light guiding rod from another end portion of the light guiding rod and a side surface adjacent to the another end portion toward the cap body. Thereby, the whole cap body can receives relatively uniform back light.
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公开(公告)号：US20240379308A1
公开(公告)日：2024-11-14
申请号：US18644074
申请日：2024-04-23
Applicant: Darfon Electronics Corp.
Inventor： Chih-Hung Chien , Chih-Chung Yen
IPC: H01H13/7073 , H01H13/02
Abstract: A backlight keyswitch includes a keyswitch body, a membrane circuit board disposed under the keyswitch body, a backlight module and an elastic body having a bridge structure, a central pillar, and a ring-shaped base disposed on the membrane circuit board. The keyswitch body has a keycap with a symbol. The backlight module is disposed under the membrane circuit board for emitting light to the symbol. The elastic body is disposed between the keycap and the membrane circuit board for returning the keycap to its original position. The bridge structure extends from the ring-shaped base toward the keycap to connect to the central pillar for supporting the central pillar, such that the central pillar is suspended relative to the membrane circuit board and abuts against the keycap. A projection of the central pillar on the keycap completely covers the symbol.
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公开(公告)号：US10283289B2
公开(公告)日：2019-05-07
申请号：US15725295
申请日：2017-10-05
Applicant: DARFON ELECTRONICS CORP.
Inventor： Chih-Hao Chen , Chih-Hung Chen , Chin-Hung Lin , Ling-Hsi Chao , Chih-Chung Yen
Abstract: A keyswitch structure includes a base, a keycap, a first support, a second support, and a connection structure. The keycap moves up and down relative to the base through the first support and the second support. The connection structure is disposed on the base and includes a vertical-motion limiting part and a horizontal-motion limiting part. The first support includes a rod-shaped connection portion and is connected to the connection structure through the rod-shaped connection portion. The vertical-motion limiting part prevents the rod-shaped connection portion from vertically moving. The horizontal-motion limiting part limits the horizontal movement of the rod-shaped connection portion. The vertical-motion limiting part and the horizontal-motion limiting part are separated in the rotation axis of the rod-shaped connection portion.
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公开(公告)号：US20180286603A1
公开(公告)日：2018-10-04
申请号：US15725295
申请日：2017-10-05
Applicant: DARFON ELECTRONICS CORP.
Inventor： Chih-Hao Chen , Chih-Hung Chen , Chin-Hung Lin , Ling-Hsi Chao , Chih-Chung Yen
Abstract: A keyswitch structure includes a base, a keycap, a first support, a second support, and a connection structure. The keycap moves up and down relative to the base through the first support and the second support. The connection structure is disposed on the base and includes a vertical-motion limiting part and a horizontal-motion limiting part. The first support includes a rod-shaped connection portion and is connected to the connection structure through the rod-shaped connection portion. The vertical-motion limiting part prevents the rod-shaped connection portion from vertically moving. The horizontal-motion limiting part limits the horizontal movement of the rod-shaped connection portion. The vertical-motion limiting part and the horizontal-motion limiting part are separated in the rotation axis of the rod-shaped connection portion.
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Patent Agency Ranking
公开(公告)号：US20180137994A1
公开(公告)日：2018-05-17
申请号：US15871035
申请日：2018-01-14
Inventor： Rui-Ming Liao , Chih-Chung Yen , Hung-Chieh Lo , Chia-Hung Liu
CPC classification number: H01H13/14 , H01H1/24 , H01H3/42 , H01H13/023 , H01H13/10 , H01H13/28 , H01H13/52 , H01H2201/018 , H01H2205/004 , H01H2215/00 , H01H2215/028 , H01H2215/03
Abstract: A keyswitch uses a combination of springs connected in serial for providing a return force to a keycap of the keyswitch. When the keycap moves toward a base of the keyswitch beyond a transition position, one of the springs stops continuously deforming. It leads to an increment of the elastic coefficient of the combination of springs and an increment of the elastic stored energy by the combination of springs. Therefore, during a pressing on the keycap, the keycap can provide a light force feedback and then a heavy force feedback to a user. Further, the keyswitch can use a switch with a lateral motion, which can reduce influence of a resilient force produced by the switch on the up and down movement of the keycap. The keyswitch also can use an elastic piece disposed beside the keycap, which can provide a tactile feedback to the user.
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公开(公告)号：US20150101917A1
公开(公告)日：2015-04-16
申请号：US14495905
申请日：2014-09-25
Applicant: DARFON ELECTRONICS CORP.
Inventor： Chih-Chung Yen
CPC classification number: H01H13/84 , G06F3/0221 , H01H3/12 , H01H3/125 , H01H2215/002 , H01H2221/04 , H01H2223/052 , H01H2231/002
Abstract: A magnetic keyswitch includes a base, a keycap, a curved supporter, a bracket and a second magnetic portion. The keycap moves relative to the base upwardly and downwardly. The curved supporter is disposed between the keycap and the base and has a first end and a second end. A first magnetic portion is disposed on the first end. The bracket slides relative to the base and is switched between a first position and a second position. The second magnetic portion is disposed on the bracket. An attractive force is generated between the second magnetic portion and the first end when the bracket is located at the first position, so that the second end supports the keycap at a first height. The attractive force is removed when the bracket moves to the second position, and the keycap is descended to a second height by an external force.
Abstract translation: 磁性钥匙开关包括底座，键帽，弯曲支撑件，托架和第二磁性部分。 键帽相对于底座上下移动。 弯曲的支撑件设置在键帽和基座之间并且具有第一端和第二端。 第一磁性部分设置在第一端上。 支架相对于基座滑动并且在第一位置和第二位置之间切换。 第二磁性部分设置在支架上。 当支架位于第一位置时，在第二磁性部分和第一端部之间产生吸引力，使得第二端部在第一高度处支撑键帽。 当托架移动到第二位置时，吸引力被移除，并且键帽通过外力下降到第二高度。
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公开(公告)号：US10475598B2
公开(公告)日：2019-11-12
申请号：US16234594
申请日：2018-12-28
Applicant: DARFON ELECTRONICS CORP.
Inventor： Li-Te Chang , Chih-Chung Yen
IPC: H01H3/12 , H01H13/12 , H01H13/7065
Abstract: A keyswitch structure includes a keycap, a base plate, a first support, and a second support. The first support and the second support are pivotally connected with each other and are connected to and between the keycap and the base plate. The first support includes a shaft socket, a shaft portion, and a protruding interference portion which are adjacently arranged. Correspondingly, the second support includes a shaft portion, a shaft socket, and a recess interference portion which are adjacently arranged. The recess interference portion has a relief space and a block beside the relief space. The first support and the second support are pivotally connected by engaging the shaft sockets with the corresponding shaft portions; therein, the protruding interference portion is located in the relief space, and the block obstructs the protruding interference portion moving out of the relief space.
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公开(公告)号：US10211006B2
公开(公告)日：2019-02-19
申请号：US15404212
申请日：2017-01-12
Inventor： Rui-Ming Liao , Chih-Chung Yen , Chia-Hung Liu
Abstract: An illuminated keyswitch includes a base, a keycap, a lift mechanism, and a light source. The keycap includes a cap body and a light guiding rod. The lift mechanism is connected to between the light guiding rod and the base, such that the keycap can vertically move relative to the base through the lift mechanism. The light source is disposed between the light guiding rod and the base and emits light toward the light guiding rod. The light enters the light guiding rod through an end portion of the light guiding rod and then emits out the light guiding rod from another end portion of the light guiding rod and a side surface adjacent to the another end portion toward the cap body. Thereby, the whole cap body can receives relatively uniform back light.
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公开(公告)号：US09396893B2
公开(公告)日：2016-07-19
申请号：US14495905
申请日：2014-09-25
Applicant: DARFON ELECTRONICS CORP.
Inventor： Chih-Chung Yen
CPC classification number: H01H13/84 , G06F3/0221 , H01H3/12 , H01H3/125 , H01H2215/002 , H01H2221/04 , H01H2223/052 , H01H2231/002
Abstract: A magnetic keyswitch includes a base, a keycap, a curved supporter, a bracket and a second magnetic portion. The keycap moves relative to the base upwardly and downwardly. The curved supporter is disposed between the keycap and the base and has a first end and a second end. A first magnetic portion is disposed on the first end. The bracket slides relative to the base and is switched between a first position and a second position. The second magnetic portion is disposed on the bracket. An attractive force is generated between the second magnetic portion and the first end when the bracket is located at the first position, so that the second end supports the keycap at a first height. The attractive force is removed when the bracket moves to the second position, and the keycap is descended to a second height by an external force.
Abstract translation: 磁性钥匙开关包括底座，键帽，弯曲支撑件，托架和第二磁性部分。 键帽相对于底座上下移动。 弯曲的支撑件设置在键帽和基座之间并且具有第一端和第二端。 第一磁性部分设置在第一端上。 支架相对于基座滑动并且在第一位置和第二位置之间切换。 第二磁性部分设置在支架上。 当支架位于第一位置时，在第二磁性部分和第一端部之间产生吸引力，使得第二端部在第一高度处支撑键帽。 当托架移动到第二位置时，吸引力被移除，并且键帽通过外力下降到第二高度。
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