公开(公告)号：US20230305214A1

公开(公告)日：2023-09-28

申请号：US18128261

申请日：2023-03-30

Applicant: DARFON ELECTRONICS CORP.

Inventor： Chao-Yu Chen ,  Heng-Yi Huang ,  Hsin-Cheng Ho

IPC: F21V8/00 ,  H01H13/83 ,  H01H13/704

CPC classification number: G02B6/0031 ,  H01H13/83 ,  G02B6/0021 ,  H01H13/704 ,  G02B6/006 ,  H01H2219/044 ,  H01H2219/039

Abstract: A back light module is applied to a lighting keyboard with a plurality of keyswitches and includes a lighting unit, a light guide plate, a light penetrating membrane, a light calibration layer and an adhering component. The light guide plate has an opening used to accommodate the lighting unit. The light penetrating membrane is located on the light guide plate. The light penetrating membrane is located on the light penetrating membrane and has a second contour. The adhering component is located between the light guide plate and the light penetrating membrane, and has a first contour greater than the second contour. The adhering component includes a front region, a rear region and a hollow region. The front region is covered by the light calibration layer. The rear region is partly covered or not covered by the light calibration layer. The hollow region corresponds to and is larger than the opening.

公开(公告)号：US11735380B2

公开(公告)日：2023-08-22

申请号：US18060070

申请日：2022-11-30

Applicant: Darfon Electronics Corp.

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

IPC: H01H13/14 ,  H01H13/20 ,  H01H13/04 ,  H01H13/70

CPC classification number: H01H13/20 ,  H01H13/04 ,  H01H13/14 ,  H01H13/70 ,  H01H2233/07

Abstract: A keyswitch structure includes a base, a cap disposed corresponding to the base, a restoring member disposed between the base and the cap, and a tactile adjustment unit. The cap has a cam portion movable relative to the base. The restoring member is configured to provide a restoring force to enable the cam portion to move away from the base. The tactile adjustment unit is disposed corresponding to the cam portion and includes a holder and a tactile feedback member mounted on the holder. The holder is movable relative to the base to change a position of the tactile feedback member relative to the cam portion, so as to change a pressing force required for the cam portion to move toward the base.

公开(公告)号：US20230245843A1

公开(公告)日：2023-08-03

申请号：US18132433

申请日：2023-04-10

Applicant: DARFON ELECTRONICS CORP.

Inventor： Zheng-Hong Lai ,  Chih-Ho Hsu ,  Chin-Lung Chan

IPC: H01H13/705 ,  H01H13/83

CPC classification number: H01H13/705 ,  H01H13/83 ,  H01H2221/07 ,  H01H2223/044

Abstract: A keyswitch structure includes a switch and a multilayer structure above the switch. The multilayer structure includes an inner flexible layer, a rigid light-transmissive cover sheet, and a flexible light-transmissive layer. The inner flexible layer has a keycap portion and a connection portion extending outward from the keycap portion. The keycap portion is located above the switch and forms a spatial character structure. The rigid light-transmissive cover sheet is disposed on the keycap portion and covers the spatial character structure. The flexible light-transmissive layer covers the inner flexible layer and the rigid light-transmissive cover sheet. A keyboard includes the keyswitch structure and a device casing carrying the keyswitch structure. The multilayer structure is fixed to the device casing. The rigid light-transmissive cover sheet is harder than the flexible light-transmissive layer and structurally protects the spatial character structure from being damaged when the keyswitch structure is pressed.

公开(公告)号：US20230207236A1

公开(公告)日：2023-06-29

申请号：US18179420

申请日：2023-03-07

Applicant: Darfon Electronics Corp.

Inventor： Hsin-Hung LIU ,  Chao-Yu CHEN ,  Heng-Yi Huang ,  Hsin-Cheng Ho

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

CPC classification number: H01H13/83 ,  G06F3/021 ,  G02B6/0035 ,  H01H2219/062

Abstract: A backlight module applicable to a key module is provided, the key module includes a plurality of key units and a baseplate, and the plurality of key units are disposed on the baseplate. The backlight module includes a lower substrate, a plurality of periphery light sources disposed along the peripheral of the baseplate, and a shielding structure. The lower substrate is disposed below the baseplate, and there is an outer edge gap between an outer edge of the baseplate and the lower substrate. The periphery light sources are disposed between the baseplate and the lower substrate. The shielding structure is disposed outside those periphery light sources distributed, to prevent light provided by the plurality of light sources from being emitted out of the outer edge gap.

公开(公告)号：US20230197366A1

公开(公告)日：2023-06-22

申请号：US18081712

申请日：2022-12-15

Applicant: DARFON ELECTRONICS CORP.

Inventor： Chen Yang ,  Ling-Hsi Chao ,  Shao-Lun Hsiao ,  Yu-Chun Hsieh

IPC: H01H3/12 ,  H01H13/14 ,  H01H13/70

CPC classification number: H01H3/125 ,  H01H13/14 ,  H01H13/70 ,  H01H2233/07

Abstract: A keyswitch structure includes a keycap support mechanism and a keycap that is supported by the keycap support mechanism in a vertical direction. The keycap support mechanism includes a base and two supports. The base has two sliding slots. Each sliding slot has an opening in a horizontal direction and an obstruction block at the opening. The horizontal direction is perpendicular to the vertical direction. Each support has a sliding portion and a linkage portion. The sliding portions slide parallel to the horizontal direction in the sliding slots correspondingly. The obstruction block prevents the corresponding sliding portion from disengaging from the corresponding sliding slot. The two linkage portions push against each other in line contact, so that the two supports are mutually driven through the two linkage portions.

公开(公告)号：US11621454B2

公开(公告)日：2023-04-04

申请号：US17169599

申请日：2021-02-08

Applicant: Darfon Electronics Corp.

Inventor： Chih-Hsien Liu

IPC: H01M50/244 ,  H01M50/264

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 disposed on an end portion of the battery. The battery holding unit includes a holding member selectively engaging 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, the battery unit moves 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 rotate along a surface of the end portion to disengage from the holding member and to remove the battery unit from the battery holding unit.

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.