公开(公告)号：US11605512B2

公开(公告)日：2023-03-14

申请号：US17717287

申请日：2022-04-11

Applicant: Darfon Electronics Corp.

Inventor： Po-Chun Hou ,  Chin-Hung Lin

IPC: H01H3/12 ,  H01H13/14 ,  H01H13/10 ,  H01H13/20

Abstract: A key structure is provided. The key structure includes a base plate, a key cap and a lifting mechanism is provided. The base plate includes a first bottom wall. The key cap is disposed opposite to the base plate and includes a first cap wall. The lifting mechanism is movably connected between the key cap and the base plate, so that the key cap could reciprocate with respect to the base plate. The lifting mechanism includes a first lower shaft portion and a first upper shaft portion, which are respectively movably connected on the same side of the key cap and the base plate. When the key cap is in a released state, the first upper shaft portion presses against the first cap wall, but the first lower shaft portion is separated from the bottom wall by a maintaining gap.

公开(公告)号：US20230052178A1

公开(公告)日：2023-02-16

申请号：US17965216

申请日：2022-10-13

Applicant: DARFON ELECTRONICS CORP.

Inventor： Ping-Hung LIN ,  Zuei-Chown JOU ,  Yung-Ping WU ,  Chi-Ming HUANG ,  Yao-Tsung CHEN ,  Bo-Yu HUANG

IPC: H01F27/32 ,  H01F27/29 ,  H01F27/255 ,  H01F41/02 ,  H01F41/04

Abstract: A method of fabricating an inductor device includes preparing a conductive coil, connecting two terminals to one of two ends of the conductive coil, molding a pillar from a plurality of first composite material powders by a pressing process where each first composite material powder is composed of a first magnetic material powder coated with a first thermosetting resin, placing the pillar in a surrounding space formed by the conductive coil, molding a cladding body from a plurality of second composite powders where the second composite material powders is composed of a second magnetic material powder coated with a second thermosetting resin, heating the cladding body, the conductive coil and the pillar cladded by the cladding body such that the plurality of first magnetic material powders are bonded by the cured first thermosetting resin and the plurality of second magnetic material powders are bonded by the cured second thermosetting resin.

公开(公告)号：US11551890B2

公开(公告)日：2023-01-10

申请号：US16809510

申请日：2020-03-04

Applicant: DARFON ELECTRONICS CORP.

Inventor： Jin-Long Chan ,  Yu-Chih Chang ,  Cheng-Min Su

IPC: H01H13/705

Abstract: A keyswitch includes a cap, first and second support members slidably connected to the cap and opposite to each other, and first and second blocks formed on the cap. The cap is movable between a non-pressed position and a pressed position. The first support member abuts against the first block when the cap is located at the non-pressed position. The first block moves away from the first support member at a first gap when the cap moves downward from the non-pressed position. The first support member abuts against the cap when the cap is located at the non-pressed position, and abuts against the second block when the cap continues moving downward to the pressed position.

公开(公告)号：US20220406539A1

公开(公告)日：2022-12-22

申请号：US17841795

申请日：2022-06-16

Applicant: Darfon Electronics Corp.

Inventor： Yu-Chun HSIEH ,  Ling-Hsi CHAO ,  Shao-Lun HSIAO ,  Chen YANG

IPC: H01H13/20 ,  H01H13/14 ,  H01H13/70 ,  H01H13/10

Abstract: A key structure includes a base, a movable mechanism movably positioned on the base, a sound generating member positioned on the base, and an adjusting unit movable relative to the base to be at a first position or a second position. The sound generating member has a hitting portion, which extends corresponding to an impact surface. When the adjusting unit is at the first position, and a pressing force is applied to the movable mechanism, the movable mechanism moves relative to the base and drives the sound generating member to move, so the hitting portion moves to hit the impact surface to generate a hitting sound. When the adjusting unit is at the second position, the adjusting unit restricts movement of the hitting portion, so the hitting portion cannot move to hit the impact surface.

公开(公告)号：US11531404B2

公开(公告)日：2022-12-20

申请号：US17316762

申请日：2021-05-11

Applicant: Darfon Electronics Corp.

Inventor： Chin-Lung Chan ,  Wei-Yan You ,  Po-Yueh Chou

IPC: G06F3/02 ,  G06F3/044 ,  H03K17/96

Abstract: A luminous touch keyboard includes a baseplate, a plurality of keycaps, a plurality of support mechanisms connected between the baseplate and the keycaps, and a keyboard composite electrode module disposed between the baseplate and the keycaps and configured to sense a non-pressing movement over the keycaps and to provide light emitting through the keycaps. The support mechanism supports the keycap to move relative to the baseplate and the keyboard composite electrode module. The keyboard composite electrode module includes a light source circuit and a plurality of electrode matrices arranged along a first direction and a second direction. Two of the electrode matrices adjacent in the second direction are mis-aligned. The light source circuit includes a plurality of light sources disposed in the plurality of electrode matrices in a one-to-one manner, and the position of the light source in the electrode matrix is correspondingly the same.

公开(公告)号：US11520101B2

公开(公告)日：2022-12-06

申请号：US17585714

申请日：2022-01-27

Applicant: Darfon Electronics Corp.

Inventor： Chao-Yu Chen

IPC: H01H13/83 ,  F21V8/00 ,  H01H13/705 ,  G06F3/02

Abstract: A luminous keyboard and an optical module thereof are provided. The optical module includes a light guide sheet, a reflective film on one side of the light guide sheet, and an optical film on another side of the light guide sheet opposite to the reflective film. The optical film has a mask pattern. The mask pattern defines a light-transparent region, a light-shielding region, and a light modulation region extending from the light-shielding region to the light-transparent region. The light-transparent region allows light to pass therethrough. The light-shielding region blocks light. The light modulation region partially allows light to pass therethrough and partially blocks light, so that an average light-transmitting rate per unit area of the light modulation region is smaller than that of the light-transparent region and larger than that of the light-shielding region.

公开(公告)号：US11495421B2

公开(公告)日：2022-11-08

申请号：US16814985

申请日：2020-03-10

Applicant: DARFON ELECTRONICS CORP.

Inventor： Jui-Yi Huang ,  Sheng-Yun Yang ,  Chin-Hung Lin

IPC: H01H13/705 ,  H01H13/85

Abstract: A keyswitch includes a bottom board, a cap structure, a lifting mechanism, and an elastic member. The lifting mechanism is detachably connected to the cap structure and the bottom board to make the cap structure movable upward and downward relative to the bottom board. The elastic member is connected to the cap structure so as to be detached from the lifting mechanism together with the cap structure when the cap structure is separate from the lifting mechanism.

公开(公告)号：US20220351921A1

公开(公告)日：2022-11-03

申请号：US17810879

申请日：2022-07-06

Applicant: Darfon Electronics Corp.

Inventor： Heng-Yi HUANG ,  Hsin-Cheng HO ,  Yuan-Bao CHEN

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

Abstract: An illuminated keyswitch structure with an illuminating module includes a base plate, a drive circuit board under the base plate, a spacer between the drive circuit board and the base plate, and a light-emitting part on the circuit board. The spacer has a through hole communicating with an opening of the base plate in a vertical direction. The light-emitting part is located in the through hole, and falls within a projection of the opening in the vertical direction. The light-emitting part has a top surface that is lower than or equal to a bottom surface of the base plate in the vertical direction. The structure of the illuminated keyswitch structure around the light-emitting part can keep flat by the spacer. The spacer can prevent the light-emitting part from structurally entering the opening, avoiding structural interference between the light-emitting part and other components above the base plate.

公开(公告)号：US11367582B2

公开(公告)日：2022-06-21

申请号：US16809493

申请日：2020-03-04

Applicant: DARFON ELECTRONICS CORP.

Inventor： Che-Wei Lee ,  Chih-Ho Hsu ,  Zheng-Hong Lai

IPC: H01H13/88 ,  H01H13/785 ,  G06F3/02 ,  G06F1/16

Abstract: A keyswitch includes a base, a keycap, a lift mechanism, a touch circuitry portion, and an outer covering layer. The keycap is connected to the base through the lift mechanism so as to move up and down relative to the base. The touch circuitry portion is disposed on the top surface of the keycap. A connection circuitry portion extends from the touch circuitry portion. The outer covering layer covers the touch circuitry portion and at least a portion of the connection circuitry portion. Thereby, the keyswitch can provide touch function without excessively increasing the whole thickness of the keyswitch. A keyboard includes a plurality of the keyswitches and therefore can provide touch function without excessively increasing the whole thickness of the keyboard.

公开(公告)号：US20220013309A1

公开(公告)日：2022-01-13

申请号：US17089747

申请日：2020-11-05

Applicant: DARFON ELECTRONICS CORP.

Inventor： Sheng-Yun Yang

IPC: H01H13/14 ,  H01H13/10 ,  H01H13/30

Abstract: A restoration assembly of a button switch includes first and second sleeves, and a spring disposed between the two sleeves. A first outer diameter of the first sleeve is less than a second inner diameter of the second sleeve to make the second sleeve movably jacket outside the first sleeve. The jacketed first and second sleeves are disposed between a key cap and a base of the button switch. The spring has a first end portion, a second end portion and a middle section. A middle outer diameter of the middle section of the spring is larger than a first inner diameter of the first sleeve. During the spring being compressed along with the key cap being pressed downward, the middle section is squeezed to shrink and slide into the first sleeve through an end edge of the first sleeve, thereby producing a tactile feedback and/or a first sound.