Abstract: Some embodiments of the disclosure provide an air intake bypass recirculation structure with adjustable air entraining amount and controllable broadband noise which includes main body of the air intake bypass recirculation structure and an air entraining amount adjusting structure. In some examples, an air intake bypass recirculation cavity is formed in the main body of the air intake bypass recirculation structure. An air inlet of an air intake pipe and an air outlet of the air intake pipe are formed in two ends of the main body of the air intake bypass recirculation structure respectively. An airflow inlet of the air intake bypass recirculation structure and an airflow outlet of the air intake bypass recirculation structure are formed in the inner side of the main body of the air intake bypass recirculation structure. The air entraining amount adjusting structure is arranged in the air intake bypass recirculation cavity.

Abstract: A leg assembly and a legged robot having same are provided. The leg assembly includes a first leg, a second leg, a motor, an output flange and a transmission component. The motor is arranged at a first end of the first leg, and an output shaft of the motor is connected to the output flange to drive the output flange to rotate. The first leg is pivotably connected to the second leg, and the transmission component is connected to the output flange and the second leg to drive the second leg to rotate relative to the first leg. The output flange is provided with a first limiting portion, the first leg is provided with a first stop portion and a second stop portion spaced apart and configured to stop the first limiting portion, and the first leg is provided with a second limiting portion configured to stop the second leg.

Abstract: A servo motor and a robot. The servo motor includes: a housing, a rotor, a stator, a Hall magnet, and one printed circuit board. The rotor is arranged in the housing and has a rotor support and a rotor shaft; the stator is arranged in the housing; the Hall magnet is arranged on the rotor; the printed circuit board is arranged in the housing and provided with a position sensor facing the Hall magnet.

Abstract: The present disclosure relates to a cam phase adjuster that includes a stator, a rotor, a front cover and at least one locking pin .

Abstract: The disclosure discloses an ultraviolet lamp bead package structure and a preparation method thereof. The ultraviolet lamp bead package structure includes a substrate and a first metal layer arranged on each of a package surface and a back surface of the substrate. A Zener chip is arranged on the electrode region of the first metal layer. The first metal layer also has a peripheral region. A second metal layer is arranged on the first metal layer. An Ultra Violet C radiation (UVC) chip is arranged on the electrode region of the second metal layer. The second metal layer is provided with a quartz lens by sealing through the peripheral region of the second metal layer. The quartz lens wraps the UVC chip and the Zener chip. An filler with anti-UVC characteristic is filled between the quartz lens and each of the UVC chip and the Zener chip.

Abstract: A leg assembly for a legged robot includes first through three motors, first through second legs, and a transmission component. The first motor is coupled to the second motor to drive the second motor to rotate, and a rotation axis of the first motor is substantially orthogonal to a rotation axis of the second motor. The second motor is coupled to the third motor to drive the third motor to rotate, and a rotation axis of the third motor substantially coincides with the rotation axis of the second motor. The third motor is arranged at a first end of the first leg, the second leg is pivotably coupled to a second end of the first leg, and the transmission component is coupled to an output shaft of the third motor and the second leg to drive the second leg to rotate relative to the first leg.

Abstract: A positioning apparatus includes a body, the body has a positioning slot used to accommodate a camera, and elastic elements are separately fastened to two side walls adjacent to the positioning slot. The positioning apparatus further includes a cover plate, and the cover plate is detachably fastened to the body. When the camera is installed in the positioning slot, two elastic elements separately press against a housing of the camera. The cover plate presses against an end face of the camera.

Abstract: A leg assembly and a legged robot having same are provided. The leg assembly includes a first leg, a second leg, a motor, an output flange and a transmission component. The motor is arranged at a first end of the first leg, and an output shaft of the motor is connected to the output flange to drive the output flange to rotate. The first leg is pivotably connected to the second leg, and the transmission component is connected to the output flange and the second leg to drive the second leg to rotate relative to the first leg. The output flange is provided with a first limiting portion, the first leg is provided with a first stop portion and a second stop portion spaced apart and configured to stop the first limiting portion, and the first leg is provided with a second limiting portion configured to stop the second leg.

Abstract: A servo motor and a robot. The servo motor includes: a housing, a rotor, a stator, a Hall magnet, and one printed circuit board. The rotor is arranged in the housing and has a rotor support and a rotor shaft; the stator is arranged in the housing; the Hall magnet is arranged on the rotor; the printed circuit board is arranged in the housing and provided with a position sensor facing the Hall magnet.

Abstract: A servo motor includes a housing, a rotor, a stator, a planetary reduction mechanism, a first Hall magnet, Hall switches, a second Hall magnet, and a position sensor; the rotor, stator, the planetary reduction mechanism, and the position senor are arranged in the housing. The rotor has a rotor support and a rotor shaft; the planetary reduction mechanism includes a sun gear, a planetary carrier, and planetary gears; a reduction ratio of the planetary reduction mechanism is N:1, where N is a positive integer; the first Hall magnet is arranged on the planetary carrier; the Hall switches correspond to the first Hall magnet and are arranged in the housing at even intervals around a rotation axis of the rotor shaft. The number of Hall switches is N; the second Hall magnet is arranged on the rotor; and the position sensor is opposite the second Hall magnet.

Abstract: A structure of an electronic device and an electronic device are disclosed. The structure includes: a cover, a fingerprint decorative component, and a fingerprint sensor. The cover covers a surface of the electronic device, and the cover has a first through hole. The fingerprint decorative component is built in the first through hole, the fingerprint decorative component includes a side wall of the fingerprint decorative component and a bottom wall of the fingerprint decorative component that are integrally connected, the side wall of the fingerprint decorative component is fastened to the cover by using glue. The fingerprint sensor is accommodated in the fingerprint decorative component. The fingerprint decorative component is fastened to the cover by using the glue, and no additional fastening plate and screw is required for fastening, thereby improving overall space utilization of the electronic device.

Abstract: A fingerprint module includes a fingerprint component, a button component, a support, and a resilient fixing element. The button component is fastened to a lower surface of the fingerprint component. The resilient fixing element is disposed on the lower surface of the fingerprint component and is located between the fingerprint component and the support. The resilient fixing element surrounds the button component, and the resilient fixing element resiliently connects the fingerprint component and the support. There is a gap between the button component and the support. When the fingerprint component is pressed, the resilient fixing element deforms, the gap becomes smaller, and the button component comes in contact with the support.

Abstract: A positioning apparatus includes a body, the body has a positioning slot used to accommodate a camera, and elastic elements are separately fastened to two side walls adjacent to the positioning slot. The positioning apparatus further includes a cover plate, and the cover plate is detachably fastened to the body. When the camera is installed in the positioning slot, two elastic elements separately press against a housing of the camera. The cover plate presses against an end face of the camera.

Abstract: A structure of an electronic device and an electronic device are disclosed. The structure includes: a cover, a fingerprint decorative component, and a fingerprint sensor. The cover covers a surface of the electronic device, and the cover has a first through hole. The fingerprint decorative component is built in the first through hole, the fingerprint decorative component includes a side wall of the fingerprint decorative component and a bottom wall of the fingerprint decorative component that are integrally connected, the side wall of the fingerprint decorative component is fastened to the cover by using glue. The fingerprint sensor is accommodated in the fingerprint decorative component. The fingerprint decorative component is fastened to the cover by using the glue, and no additional fastening plate and screw is required for fastening, thereby improving overall space utilization of the electronic device.

Abstract: A battery cover is applied to the electronic device and configured to couple to a housing of the electronic device, and includes a glass substrate. A non-transparent layer is disposed on a first side of the glass substrate. At least one first through-hole is disposed on the non-transparent layer opposite to a camera assembly disposed in the electronic device. A camera region is disposed on the first side of the glass substrate disposed opposite to the at least one first through-hole. A film-coated layer is disposed in the camera region of the glass substrate. An area of the camera region is greater than or equal to an area of the at least one first through-hole.

Abstract: A fingerprint module includes a fingerprint component, a button component, a support, and a resilient fixing element. The button component is fastened to a lower surface of the fingerprint component. The resilient fixing element is disposed on the lower surface of the fingerprint component and is located between the fingerprint component and the support. The resilient fixing element surrounds the button component, and the resilient fixing element resiliently connects the fingerprint component and the support. There is a gap between the button component and the support. When the fingerprint component is pressed, the resilient fixing element deforms, the gap becomes smaller, and the button component comes in contact with the support.

Abstract: A battery cover is applied to the electronic device and configured to couple to a housing of the electronic device, and includes a glass substrate. A non-transparent layer is disposed on a first side of the glass substrate. At least one first through-hole is disposed on the non-transparent layer opposite to a camera assembly disposed in the electronic device. A camera region is disposed on the first side of the glass substrate opposite to the at least one first through-hole. A film-coated layer is disposed in the camera region of the glass substrate. An area of the camera region is greater than or equal to an area of the at least one first through-hole.

Abstract: A component and an electronic device with the component includes a structural assembly and a cover assembly that matches the structural assembly. The structural assembly includes a bracket, the cover assembly includes a cover body, and a glare film is disposed on a surface that is of the cover body and that is close to the structural assembly. An isolation assembly configured to isolate the bracket from the glare film is disposed in some regions between the bracket and the glare film. A hardness of the isolation assembly is less than or equal to hardness of the glare film. A connection assembly configured to connect the bracket and the glare film is disposed in some or all regions that are between the bracket and the glare film and in which the isolation assembly is not disposed.

Abstract: A component and an electronic device with the component includes a structural assembly and a cover assembly that matches the structural assembly. The structural assembly includes a bracket, the cover assembly includes a cover body, and a glare film is disposed on a surface that is of the cover body and that is close to the structural assembly. An isolation assembly configured to isolate the bracket from the glare film is disposed in some regions between the bracket and the glare film. A hardness of the isolation assembly is less than or equal to hardness of the glare film. A connection assembly configured to connect the bracket and the glare film is disposed in some or all regions that are between the bracket and the glare film and in which the isolation assembly is not disposed.