Patents Assigned to Darfon Electronics Corp.
  • Patent number: 10535481
    Abstract: A magnetic keyboard has a plurality of magnetic keyswitches, and each magnetic keyswitch include a base, a keycap, a supporting device, a magnetic component and a metal thin sheet. The base has at least one engaging structure and a hole. The supporting device has a first support, an end of the first support is movably connected to the engaging structure, and the other end of the first support is movably connected to the keycap. The first support has a magnet portion. The magnetic component is disposed on the base and functioned with the magnet portion to provide a recovering force to the keycap. The metal thin sheet is disposed under the base and has a bendable cantilever portion covering the hole. While the cantilever portion is bent by an external force, the magnetic component can be removed through the hole.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: January 14, 2020
    Assignee: DARFON ELECTRONICS CORP.
    Inventors: Sung-Fu Yang, Po-Chun Hou
  • Patent number: 10535477
    Abstract: A button switch includes a base having a pillar, a cover disposed on the base, a sleeve, an arm adjacent to the pillar and an elastic member having upward-force-applying, extending-rod, and flexible-rod portions. The sleeve jackets the pillar, passes through the cover, and has first and second ribs. The upward-force-applying portion jackets the pillar and abuts against the sleeve and the base to drive the sleeve to move away from the base. The extending-rod portion extends from the upward-force-applying portion to be connected to the flexible-rod portion located under the first rib. When the sleeve is located at a high position, the second rib biases the arm to deform. When the sleeve is located at a low position, the second rib is misaligned with the arm. The flexible-rod portion crosses the first rib to be released and then collides with the cover to make sound as the sleeve is pressed.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: January 14, 2020
    Assignee: DARFON ELECTRONICS CORP.
    Inventors: Yu-Chun Hsieh, Yung-Chih Wang, Chen Yang, Chia-Hung Liu, Yen-Hsiao Lin
  • Publication number: 20190371537
    Abstract: A light source board includes a substrate, a composite circuit layer on the substrate, a first protective layer on the composite circuit layer, and a plurality of light sources on the pad portions, respectively. The substrate has a long side, a first short side, and a second short side. The composite circuit layer includes a first conductive trace layer and a second conductive trace layer stacked on the first conductive trace layer. A conductivity of the second conductive trace layer is higher than a conductivity of the first conductive trace layer. The composite circuit layer has a wire portion formed of at least the first conductive trace layer and a plurality of pad portions each formed of at least the first conductive trace layer and the second conductive trace layer. The wire portion is electrically coupled to the pad portions. The first protective layer exposes the pad portions.
    Type: Application
    Filed: December 4, 2018
    Publication date: December 5, 2019
    Applicant: Darfon Electronics Corp.
    Inventors: Heng-Yi HUANG, Hsin-Cheng HO, Tsai-Yu CHEN, Hung-Chuan CHENG
  • Publication number: 20190371538
    Abstract: A light source board includes a substrate, a composite circuit layer on the substrate, a first protective layer on the composite circuit layer, and a plurality of light sources on the pad portions, respectively. The substrate has a long side, a first short side, and a second short side. The composite circuit layer includes a first conductive trace layer and a second conductive trace layer stacked on the first conductive trace layer. A conductivity of the second conductive trace layer is higher than a conductivity of the first conductive trace layer. The composite circuit layer has a wire portion formed of at least the first conductive trace layer and a plurality of pad portions each formed of at least the first conductive trace layer and the second conductive trace layer. The wire portion is electrically coupled to the pad portions. The first protective layer exposes the pad portions.
    Type: Application
    Filed: December 4, 2018
    Publication date: December 5, 2019
    Applicant: Darfon Electronics Corp.
    Inventors: Heng-Yi HUANG, Hsin-Cheng HO, Tsai-Yu CHEN, Hung-Chuan CHENG
  • Publication number: 20190368706
    Abstract: A light source board includes a substrate; a metal reactive layer disposed on the substrate; a metal conductive layer disposed on the metal reactive layer; a metal alloy layer disposed on the metal conductive layer; and at least one light source disposed on the metal alloy layer. A material of the metal reactive layer is a Sn—Bi type alloy or a Sn—Ag—Cu type alloy, and arrangements of materials of the metal reactive layer and the metal conductive layer are respectively an arrangement of silver paste and copper, an arrangement of silver paste and nickel, an arrangement of silver paste and silver, an arrangement of copper paste and copper, an arrangement of copper paste and nickel, or an arrangement of copper paste and silver.
    Type: Application
    Filed: January 31, 2019
    Publication date: December 5, 2019
    Applicant: Darfon Electronics Corp.
    Inventors: Heng-Yi HUANG, Hsin-Cheng HO, Tsai-Yu CHEN, Hung-Chuan CHENG
  • Patent number: 10479444
    Abstract: A power transmission apparatus includes a shaft, a driving plate, a first driven plate, and a sensor device. The driving plate is disposed on the shaft and rotates with the shaft. The driving plate includes a first block that has a driving surface on it. The first driven plate is disposed on the shaft and capable of moving along the shaft. The first driven plate includes a second block that has a driven surface corresponding to the driving surface. The sensor device is disposed close to the first driven plate for detecting the movement of the first driven plate along the shaft. When the shaft rotates together with the driving plate, the driving surface compels the driven surface to rotate and simultaneously move away from the driving plate along the shaft, and the movement along the shaft is detected by the sensor device.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: November 19, 2019
    Assignee: DARFON ELECTRONICS CORP.
    Inventors: Huang-Hsiao Kao, Fei-Ya Chen
  • Patent number: 10475598
    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.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: November 12, 2019
    Assignee: DARFON ELECTRONICS CORP.
    Inventors: Li-Te Chang, Chih-Chung Yen
  • Patent number: 10431402
    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.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: October 1, 2019
    Assignee: DARFON ELECTRONICS CORP.
    Inventors: Yu-Chun Hsieh, Chia-Hung Liu, Yung-Chih Wang, Chen Yang
  • Patent number: 10381175
    Abstract: A key structure including a baseplate, a key cap, a first lever, a second lever, a first magnetic member, a second magnetic member and a first buffer material is provided. The first magnetic member is disposed on the baseplate and located between the first lever and the second lever. The second magnetic member is disposed on the first lever and corresponding to the first magnetic member. The first magnetic member has a first portion. The second lever has a second central end. The first portion is adjacent to the second central end. When the key cap moves to a higher position, the first and second magnetic members move towards each other. The second magnetic member has a second portion and a third portion. The first buffer material is provided between the first and second portions and between the second central end and the third portion, respectively.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: August 13, 2019
    Assignee: DARFON ELECTRONICS CORP.
    Inventors: Sung-Fu Yang, Chen-An Chang
  • Patent number: 10373769
    Abstract: A keyboard structure and assembling method thereof are provided. The keyboard structure includes a baseplate, a keycap and a frame having a hook body. The keycap can be inserted into the frame and restricted by the hook body, so that the range of movement of the keycap is restricted. The keycap cannot be separated from the frame so that the coupling of the frame and the baseplate is not interfered by the keycap. Thus, the present invention can effectively simplify the assembling process of the keyboard.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: August 6, 2019
    Assignee: DARFON ELECTRONICS CORP.
    Inventors: Jui-Yi Huang, Chien-Shih Hsu
  • Patent number: 10373779
    Abstract: A key switch includes a base, a key cap, a link bar and a buffer member. A first hook of a first extending arm of the base and a second hook of a second extending arm of the base extend toward opposite directions respectively. An upper linking end of the link bar is movably connected to the key cap. The buffer member is made of material softer than material of the base. When the first hook and the second hook engage with a first engaging portion and a second engaging portion of the buffer member respectively, a recess structure of the buffer member is adjacent to the base to form a restraining structure. A lower linking end of the link bar is movably disposed through the restraining structure. Therefore, the key switch of the present invention has noise reduction capability.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: August 6, 2019
    Assignee: DARFON ELECTRONICS CORP.
    Inventors: Pen-Hui Liao, Chin-Hung Lin, Yen-Hsiao Lin, Hsin-Hung Liu, Chia-Fu Cheng
  • Patent number: 10351013
    Abstract: An electric bicycle and a battery lift mechanism and a battery carrying device thereof are disclosed. The battery lift mechanism includes a bracket, a carrier for carrying a battery, an upward-force device coupling with the carrier, and a locking device selectively in an unlocked state or a locked state. The carrier is movable relative to the bracket along an up-down path; the upward-force device is capable of applying an upward force to the carrier. When the locking device is in the locked state, the locking device interferes with the battery to limit the relative movement between the battery and the bracket. When the locking device is in the unlocked state, the interference between the locking device and the battery is removed, so that the upward-force device drives the carrier carrying the battery to move upward relative to the bracket.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: July 16, 2019
    Assignees: DARFON ELECTRONICS (SUZHOU) CO., LTD., DARFON ELECTRONICS CORP.
    Inventor: Yu-Chang Shieh
  • Patent number: 10332695
    Abstract: A key switch includes a baseplate, a circuit layer, a keycap and a support rod. The baseplate has a hook and a first through hole neighboring to the hook. The circuit layer includes a plurality of superimposed sublayers disposed above the baseplate and having a through hole structure passing through the sublayers; a portion of one of the sublayers extends in the through hole structure over the first through hole and forms a resilient portion neighboring to the hook. Two sides of the resilient portion connect to the circuit layer. The keycap is disposed above the baseplate and can move upward and downward in respect to the baseplate. The support rod has a first portion, movably connecting to the keycap, and a second portion, engaged with the hook. The resilient portion extends beneath and abuts against the second portion for buffering a collision between the second portion and the baseplate.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: June 25, 2019
    Assignee: DARFON ELECTRONICS CORP.
    Inventors: Pen-Hui Liao, Liang-Ta Yeh
  • Patent number: 10310609
    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.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: June 4, 2019
    Assignee: DARFON ELECTRONICS CORP.
    Inventor: Chia-Hung Liu
  • Patent number: 10283289
    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.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: May 7, 2019
    Assignee: DARFON ELECTRONICS CORP.
    Inventors: Chih-Hao Chen, Chih-Hung Chen, Chin-Hung Lin, Ling-Hsi Chao, Chih-Chung Yen
  • Patent number: 10276327
    Abstract: A luminous keyswitch includes a keycap having a light-transparent portion, a baseplate, an up-down mechanism with two ends respectively moveably connected to the keycap and the baseplate, a function sheet disposed on or under the baseplate, and a light source disposed on the function sheet within a vertical projection of the keycap and connected by a copper wire to provide a light illuminating the light-transparent portion. The function sheet includes a flexible upper circuit layer having a first contact point, a flexible spacer layer having a hole, and a flexible lower circuit layer having a second copper contact point, a third copper contact point, a first copper wire connected to the second copper contact point, and a second copper wire connected to the third copper contact point. When the keycap is pressed, the first contact point passes through the hole to electrically connect the second and third copper contact points.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: April 30, 2019
    Assignee: DARFON ELECTRONICS CORP.
    Inventors: Chih-Hung Chen, Hsin-Cheng Ho
  • Patent number: 10211006
    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.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: February 19, 2019
    Assignees: DARFON ELECTRONICS (SUZHOU) CO., LTD., DARFON ELECTRONICS CORP.
    Inventors: Rui-Ming Liao, Chih-Chung Yen, Chia-Hung Liu
  • Patent number: 10183591
    Abstract: An electric bicycle and a battery lift mechanism and a battery carrying device thereof are disclosed. The battery lift mechanism includes a bracket, a carrier for carrying a battery, an upward-force device coupling with the carrier, and a locking device selectively in an unlocked state or a locked state. The carrier is movable relative to the bracket along an up-down path; the upward-force device is capable of applying an upward force to the carrier. When the locking device is in the locked state, the locking device interferes with the battery to limit the relative movement between the battery and the bracket. When the locking device is in the unlocked state, the interference between the locking device and the battery is removed, so that the upward-force device drives the carrier carrying the battery to move upward relative to the bracket.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: January 22, 2019
    Assignees: DARFON ELECTRONICS (SUZHOU) CO., LTD., DARFON ELECTRONICS CORP.
    Inventor: Yu-Chang Shieh
  • Patent number: 10148216
    Abstract: A package of a supporting device for photovoltaic panels includes a container and components, for forming the supporting device, packed in the container. The components include at least two frame supports, of which at least one is provided with an inverter attached thereon in advance. Thereby, a user can quickly assemble the supporting device. Furthermore, the inverter is substantially positioned in the container, which is conducive to stabilization in the weight distribution of the components in the container and facilitates the transport of the package. In addition, a kit for forming a supporting device for at least one photovoltaic panel includes components for forming the supporting device. The kit can be provided without a container for accommodating the components. Similarly, the components include at least two frame supports, of which at least one is provided with an inverter attached thereon in advance, which facilitates the assembly of the supporting device.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: December 4, 2018
    Assignee: DARFON ELECTRONICS CORP.
    Inventors: Frank O'Young, Yen-Jen Chen
  • Patent number: 10128063
    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.
    Type: Grant
    Filed: January 14, 2018
    Date of Patent: November 13, 2018
    Assignees: DARFON ELECTRONICS (SUZHOU) CO., LTD., DARFON ELECTRONICS CORP.
    Inventors: Rui-Ming Liao, Chih-Chung Yen, Hung-Chieh Lo, Chia-Hung Liu