An implantable magnet that can freely turn in response to an external magnetic field, thus avoiding torque and demagnetization on the implantable magnet. The implantable magnet can be combined with an electric switching function depending on the orientation of an external magnetic field, thus protecting an implanted coil and/or implant electronics against induction of over-voltage or performing an electric switching function for other various purposes. The magnetic switch may further include, for example, a first switching contact and a second switching contact. A magnetically soft body that includes an electrically conductive surface is shiftable between a first position where the body is in simultaneous contact with the first and second switching contacts, and a second position where the body is out of contact with at least one of the first and second switching contacts. The body and the implantable magnet are positioned such that the body is shifted to one of the first position and the second position as a function of the external magnetic field resulting in a magnetic force between the magnet and the magnetically soft body.

An implantable magnet that can freely turn in response to an external magnetic field, thus avoiding torque and demagnetization on the implantable magnet. The implantable magnet can be combined with an electric switching function depending on the orientation of an external magnetic field, thus protecting an implanted coil and/or implant electronics against induction of over-voltage or performing an electric switching function for other various purposes. The magnetic switch may further include, for example, a first switching contact and a second switching contact. A magnetically soft body that includes an electrically conductive surface is shiftable between a first position where the body is in simultaneous contact with the first and second switching contacts, and a second position where the body is out of contact with at least one of the first and second switching contacts. The body and the implantable magnet are positioned such that the body is shifted to one of the first position and the second position as a function of the external magnetic field resulting in a magnetic force between the magnet and the magnetically soft body.

Provided by the present invention is a refrigerator door body, having a door lining and a storage device installed on the door lining. A hanging lug and a matching groove that match each other are provided between the door lining and the storage device, wherein a power supply module for supplying power to the storage device is provided between the hanging lug and the matching groove. The refrigerator door body also has a switch mechanism that controls the power supply module to turn on and off. The switch mechanism is configured to: turn on the power supply module for power supply when the storage device is installed on the door lining, and turn off the power supply module when the storage device is separated from a door lining installation position. The refrigerator door body of the present invention improves the safety of a user during use.

Provided by the present invention is a refrigerator door body, having a door lining and a storage device installed on the door lining. A hanging lug and a matching groove that match each other are provided between the door lining and the storage device, wherein a power supply module for supplying power to the storage device is provided between the hanging lug and the matching groove. The refrigerator door body also has a switch mechanism that controls the power supply module to turn on and off. The switch mechanism is configured to: turn on the power supply module for power supply when the storage device is installed on the door lining, and turn off the power supply module when the storage device is separated from a door lining installation position. The refrigerator door body of the present invention improves the safety of a user during use.

A method for performing a low energy pulse testing in a power distribution network that causes contacts to close and then open in about one fundamental frequency cycle of current flow time and close on a voltage waveform that produces symmetrical fault current. The method includes energizing a magnetic actuator to move the actuator against the bias of a spring to move a movable contact towards a fixed contact. The method also includes de-energizing the actuator when the movable contact makes contact with the fixed contact so as to allow the spring to move the movable contact away from the fixed contact so that the amount of time that the current conducts is about one fundamental frequency cycle of the current, where energizing the magnetic actuator occurs when an applied voltage on the switch assembly is at a peak of the voltage wave so that the current is symmetric.

A method for performing a low energy pulse testing in a power distribution network that causes contacts to close and then open in about one fundamental frequency cycle of current flow time and close on a voltage waveform that produces symmetrical fault current. The method includes energizing a magnetic actuator to move the actuator against the bias of a spring to move a movable contact towards a fixed contact. The method also includes de-energizing the actuator when the movable contact makes contact with the fixed contact so as to allow the spring to move the movable contact away from the fixed contact so that the amount of time that the current conducts is about one fundamental frequency cycle of the current, where energizing the magnetic actuator occurs when an applied voltage on the switch assembly is at a peak of the voltage wave so that the current is symmetric.

A key structure which is adjustable in pressing force required and in duration of key pushback includes a circuit board, a keycap, a first magnetic member, an elastic member, a membrane switch, and a second magnetic member. The keycap includes an extending portion. The membrane switch is spaced apart from the first magnetic member, and the elastic member buffers the first magnetic member against the membrane switch. The second magnetic member is disposed between the membrane switch and the circuit board. When energized, the second magnetic member generates magnetic attraction or magnetic repulsion to the first magnetic member. A pressing force required on the key structure and a rebound force and a delay of rebound can be dynamically adjusted by a direction and magnitude of a current applied to the second magnetic member. A key device including the key structure is also disclosed.

A sensor includes: a receptacle connectable to an external plug; a second housing accommodating at least part of the receptacle; a main substrate on which an electronic component used for sensing is mounted; a shield film covering at least part of the main substrate and shielding an electromagnetic wave emitted from the main substrate and/or an electromagnetic wave to penetrate the main substrate from the outside; a first housing accommodating at least part of the main substrate and at least part of the shield film; a flexible substrate connecting the main substrate and the receptacle; and a protection member abutting on an end of the shield film from the side opposite to the main substrate, the end of the shield film facing the flexible substrate.

A night vision goggle adapter including: a goggle mount assembly; a primary magnet generating a magnetic flux; a magnetic flux conducting unit having a first end and a second end; a first plurality of shunts; and a second plurality of shunts disposed about the goggle mount assembly; wherein the magnetic flux conducting unit may overlap the primary magnet and form a magnetic circuit for conducting the magnetic flux towards the second end of the magnetic flux conducting unit when none of the first plurality of shunts and none of the second plurality of shunts are overlapped by the magnetic flux conducting unit; and wherein the magnetic flux is shorted through one of the first plurality of shunts or the second plurality of shunts when the magnetic flux conducting unit is positioned to overlap one of the first plurality of shunts or one of the second plurality of shunts.

Robotic surgical tools, systems, and methods for preparing for and performing robotic surgery include a memory mounted on the tool. The memory can perform a number of functions when the tool is loaded on the tool manipulator: first, the memory can provide a signal verifying that the tool is compatible with that particular robotic system. Secondly, the tool memory may identify the tool-type to the robotic system so that the robotic system can reconfigure its programming. Thirdly, the memory of the tool may indicate tool-specific information, including measured calibration offsets indicating misalignment of the tool drive system, tool life data, or the like. This information maybe stored in a read only memory (ROM), or in a nonvolatile memory which can be written to only a single time. The invention further provides improved engagement structures for coupling robotic surgical tools with manipulator structures.