36results about How to "Reduce mechanical connections" patented technology

The hearing aid system (102) has a sound-to-vibration conversion circuitry including a microphone system (108), an electronic amplifier (114) and a vibrator (120). A housing (121) accommodates the vibrator (120). The vibrator (120) is connected to an abutment (124) that goes through the skin. The abutment (124) is connected to a fixture (126) that is anchored in the skull bone (128). The sound-to-vibration conversion circuitry has an AfD converter (212) that converts an analogue microphone signal into a digital signal.

The invention provides a control method and device of a composite braking system and an electric vehicle. The composite braking system comprises an electromechanical braking system and a regenerativebraking system, the electromechanical braking system is used for forming basic braking torque, the regenerative braking system is used for forming regenerative braking torque, and the control method comprises the steps that a braking signal is obtained, and the required braking torque is calculated according to the braking signal; judging whether an anti-lock braking system is triggered or not; ifyes, distributing a basic braking torque and a regenerative braking torque according to the required braking torque and the anti-lock braking working condition; and controlling the electromechanicalbraking system to form a basic braking torque, and controlling the regenerative braking system to form a regenerative braking torque. According to the method, the cooperative braking function of the regenerative braking system and the electromechanical braking system can be provided for the electric vehicle, the regenerative braking system is fully utilized to recover energy within the full working condition range of the electric vehicle, and the endurance mileage of the electric vehicle is increased.

The invention provides a power integrated structure of a driving motor and a transmission of an electric automobile, which comprises the driving motor and the transmission; the driving motor is installed in a motor water jacket; the rear end of the motor water jacket is provided with a rear end cover of the motor; the front end of the motor water jacket is integrally cast into a shared shell for the driving motor and the transmission; a motor power output shaft of the driving motor goes forward to pass through a bearing hole of the shared shell of the driving motor and the transmission, is stretched into the shared shell of the driving motor and the transmission, and is supported by a gear bearing installed in the bearing hole; and a transmission gear of the transmission is assembled at the output end of the motor power output shaft. Due to the adoption of the invention, the front end cover of the motor and the shell of the transmission are designed as a whole, thus the requirement of installation in a limited space can be met and the use reliability of the power integrated structure is guaranteed.

The invention provides a control method and device of a composite braking system, and an electric vehicle. The composite braking system comprises an electromechanical braking system and a regenerativebraking system, the electromechanical braking system is used for forming basic braking torque, and the regenerative braking system is used for forming regenerative braking torque. The control methodcomprises the following steps: obtaining a braking signal, and calculating the required braking torque according to the braking signal; distributing the basic braking torque and the regenerative braking torque according to the required braking torque and the current working condition; and controlling the electromechanical braking system to form the basic braking torque, and controlling the regenerative braking system to form the regenerative braking torque. The system can fully utilize the regenerative braking system to recover energy within the full working condition range of the electric automobile, and the endurance mileage of the electric automobile is increased.

The invention relates to a direct-drive hub motor of a wheelchair. The direct-drive hub motor of the wheelchair comprises a hub, a rotor core, magnetic steel, a supporting seat, a stator, a motor shaft, a stator plate, a rotor plate, a friction plate, a spring, an unlocking handle, a transmission rod and a magnetic brake seat. The stator is connected with the motor shaft to form a stator component; a rotor component consisting of the hub, the rotor core, the magnetic steel and a supporting seat wheel is rotatably supported on the motor shaft, wherein the rotor core is fixedly connected in therotor groove; the stator plate is connected with the magnetic brake seat with an interval L, the friction plate and the rotor plate are axially and movably arranged in the interval, the sum of the thicknesses of the friction plate and the rotor plate is smaller than L, and the spring is arranged between the rotor plate and the magnetic brake seat; the unlocking handle sleeves the motor shaft and is circumferentially distributed with a plurality of lugs, the lugs are provided with arc slotted holes, the upper ends of the arc slotted holes are provided with spiral surfaces, the transmission rodpenetrates the arc slotted holes and one end of the magnetic brake seat to be connected with the rotor plate, and one end of the transmission rod is connected with the unlocking handle. The direct-drive hub motor of a wheelchair has good dynamic balance and braking response, and the brake state can be manually released in a power-off state.

The invention provides a numerical control motor which comprises a photoelectric inductive module, a magnetoelectric inductive module and a processor; the photoelectric inductive module, the magnetoelectric inductive module and the processor are connected with the motor; the photoelectric inductive module and the magnetoelectric inductive module are mechanically connected with the motor; the signal lines of the photoelectric inductive module and the magnetoelectric inductive module are connected with the processor; the processor is also connected with an emergency power supply; the photoelectric inductive module and the magnetoelectric inductive module match each other so as to monitor the rotation of the motor. The invention has the advantages of accurate positioning of the motor, no upper limit in the limitation range, less mechanical connection, smaller abrasion, less power loss in the static state of the motor, continuous monitoring after the power is cut; thus the invention is suitable for wide promotion.

The invention provides an integrally-formed composite cabin capable of conducting electromagnetic shielding and a forming process of the integrally-formed composite cabin. The integrally-formed composite cabin structurally comprises a plurality of fins and a cylinder, the fins and the cylinderare integrally formed, the cylinder comprises a composite structural layer, an electromagnetic shielding functional layer and a composite structural layer inner layer, the electromagnetic shielding functional layer is wrapped in the composite material structure layer, and the composite material structure layer inner layer is wrapped in the electromagnetic shielding function layer. The technical problems that in the prior art, a cabin cannot achieve electromagnetic shielding, and metal machining of a thin-wall structure is large in difficulty and long in period are solved, the integrally-formed composite cabin is prepared through a prepreg laying technology and has the advantages of being high in strength, capable of achieving electromagnetic shielding, light in weight, low in cost and the like, the production period of a single piece is 24 h, the formed integrated cabin has good size precision, and secondary processing is not needed.

The invention provides a vehicle component (1, 26, 36, 82) in the form of a trim part, body part, or bumper. The vehicle component (1, 26, 36, 82) forms at least one housing part (2, 28, 38, 84) for an emitter (4, 50).

Embodiments of the invention disclose an X-ray tube position estimation method, device and system for X-ray imaging. The method comprises the following steps of detecting an acceleration value of an X-ray tube in the height direction based on a predetermined time interval; detecting a height value between the X-ray tube and a reference surface arranged in the height direction based on the time interval; and estimating a height estimation value of the X-ray tube between a predetermined time point and the reference surface based on the time interval, the acceleration value detected at the predetermined time point and the height value detected at the predetermined time point. An absolute position encoder can be omitted, high-precision estimation of the position of the X-ray tube can be achieved with low cost, and mechanical connection with a driving motor is reduced.

The invention relates to the field of film devices, and discloses a film grabbing device. The film grabbing device comprises a base, a pushing and feeding device, a grabbing manipulator and a drivingdevice, wherein the grabbing manipulator comprises a first gripper, a second gripper, a first connecting plate, a second connecting plate and a blank leaving part; the driving device comprises a firstdriving rack, a second driving rack, a pushing rod and a gear; the first driving rack is connected with the top of the first connecting plate; the second driving rack is connected with the top of thesecond connecting plate; the pushing rod penetrates through the first connecting plate; and the two ends of the gear are separately meshed with the first driving rack and the second driving rack. Through the grabbing manipulator, grabbing and staggered folding on an extra roll core film are carried out, and manual folding treatment is not needed, so that a lot of time is saved; and through cooperation between the gear and the driving racks, the operation of the grabbing manipulator is realized, and the first gripper and the second gripper are not needed to be driven, so that the quantity of the driving devices is reduced, the cost is reduced, mechanical connection is also reduced, and the failure rate of machinery is reduced.

The invention relates to a storage tank (1) for holding a fluid (5) that has a temperature of at least 200 DEG C, said tank having an outer shell (4), an inner shell (2) and a thermal insulation layer (3) lying between said shells. The invention is characterised in that the inner shell (2) is designed in the form of a vertical inverted cone. The invention also relates to the use of a storage tank (1) of this type for storing energy in solar thermal power plants and for retrofitting in conventional storage tanks.

The present disclosure relates to a line control braking system and a vehicle. The line control braking system includes a pedal signal collector, two electric brakes, a controller, and an intermediatemotor, wherein the two electric brakes are used for braking two front wheels and the intermediate motor is used for driving and braking two rear wheels, or the two electric brakes are used for braking the two rear wheels and the intermediate motors is used for driving and braking the two front wheels; the intermediate motor includes two motor bodies and two first electromagnetic clutches for braking the motor shafts of respective motor bodies; the controller is used for controlling the electric brakes and the intermediate motor according to a pedal signal. Through the above technical solution, the present disclosure can provide the line control braking system with less mechanical connection, no hydraulic brake pipeline, simple structure and small size, easy to be arranged on the vehicle,and capable of reducing the weight of the vehicle.

The invention relates to high-voltage insulation, in particular to a current collection line insulator lightning stroke overvoltage protection device suitable for a high wind speed environment, which comprises an insulator, voltage limiting mechanisms are arranged at two conductive ends of the insulator, the voltage limiting mechanisms on two sides and the insulator form a parallel structure, and a windproof bending-resistant mechanism is arranged between the voltage limiting mechanisms on two sides. The two voltage limiting mechanisms are symmetrically arranged at the two ends of the windproof bending-resistant mechanism, the two ends of the insulator and the opposite ends of the voltage limiting mechanisms on the two sides are provided with the first connecting pieces and the second connecting pieces respectively, and the first connecting pieces and the second connecting pieces on the same side are connected with the adjacent conductive pieces respectively. The voltage limiting mechanism is prevented from being dislocated due to vibration through the windproof bending-resistant mechanism, the insulation gap of the voltage limiting mechanism is increased, flashover of the insulator can be protected during lightning stroke, and the device can be widely applied to 35kV current collection lines in a high-wind-speed environment.

The invention relates to a quickly-releasing device for a rolling door, which comprises a mounting plate, a driving plate, a lifting mechanism and an electrically-controlled starting mechanism, wherein the lifting mechanism comprises a rotary rod and a fixed positioning sleeve. One end of the rotary rod is fixed on the top end of a brake lever, while the other end is connected with the driving plate. A screw thread lift angle which drives the brake lever to make up-and-down movement is arranged between the rotary rod and the positioning sleeve, one end of the driving plate is provided with a snib which is matched and connected with a lock cylinder fixed on the mounting plate. The lock cylinder is provided with a first slot radially for accommodating a bolt, and the lock cylinder is provided with a second slot axially for accommodating the snib. The snib is provided with a locking groove matched with one end of the bolt, and the other end of the bolt is connected with the electrically-controlled starting mechanism through a first connecting rod. The quickly-releasing device has the advantages of simple and compact structure, low cost, small volume, easy and simple operation, high control accuracy, high reliability, wide applicability, and the like.