158results about "Magnetic movement switches" patented technology

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 electromagnetic driver transducer free of torque in the presence of an external magnetic field, of any direction and orientation (such as in a Magnetic Resonance Imaging environment). The transducer includes a housing. At least one coil is associated with the housing. A plurality of magnets within the housing are aligned along an axis in an anti-parallel orientation. The magnets are free to move along an axis, wherein vibration of the magnets causes vibration of the housing. The transducer may be, for example, fixed to an ossicle.

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.

A magnetically activated switch includes a flexible metallic strip on the inside of a sealed encasement, having first and second ends. The first end provides for an electrical contact and extends through the wall of the sealed encasement, with the strip being firmly secured by the wall of the encasement at the exit point, leaving the second end unsupported and having a magnetic responsive element attached. A first dipole magnet is coupled to the flexible metallic strip and located within the sealed encasement, intermediate the first and second ends. Second and third dipole magnets are diametrically opposed and separate to each other where each of the second and third dipole magnets are fixedly coupled to the inside surface of the sealed encasement. Two electrical terminals coupled respectively to the second and third dipole magnets extending through the sealed encasement. A magnetic activation device in sliding engagement with the outside surface of the sealed encasement effects the movement of the magnetic contact by sliding to first and second positions corresponding to alignment of the second and third dipole magnets creating an electrical circuit flowing from the flexible metallic strip to one of said two electrical terminals.

A latch for a washing machine or other appliance provides two interengaging elements on a lid and housing each having a magnet oriented for mutual repulsion. Proper repulsion of the magnets is necessary to signal that the lid is properly closed such as may be used to determine if the appliance may be locked and safely operated, for example, in a clothes spinning mode.

A keyboard, a driving method and an assembling method for the keyboard, and an electronic device are described. The keyboard includes a base plate, on which a first magnetic member and a second magnetic member are formed; a keycap, disposed above the base plate; and an X-shaped holder disposed between the base plate and the keycap for supporting the keycap, and a third permanent magnet is provided on the sliding end, wherein the keycap is movable between a first position and a second position lower than the first position along a direction substantially perpendicular to the base plate, and wherein the third permanent magnet is in a position substantially opposite to the second magnetic member when the keycap is in the first position, and the third permanent magnet slides to a position substantially opposite to the first magnetic member when the keycap is in the second position.

An improved means for magnetically operating push buttons and other controls on cameras in underwater housings is disclosed. The magnetic force of repulsion is employed to transmit motion through the case wall without electrical connection to the camera or sliding or twisting or flexible seals.

A passive magnetic latch is disclosed. The latch includes, according to various embodiments, a magnetically-actuated switch and a hard, non-linear biasing magnet. The switch may include components that, when polarized, cause the switch to transition from a first state to a second state. The biasing magnet is positioned proximate to the switch such that when the magnetization of the biasing magnet is changed by an external effect to thereby induce a modified magnetic field from the biasing magnet, the modified magnetic field polarizes the components of the switch such that the switch transitions from the first state to the second state and remains in the second state after the external effect is removed. A second external effect may be used to again change the magnetization of the biasing magnet such that the components of the switch depolarize and the switch transitions back the first state. As such, the magnetic latch may act like a remote ON / OFF switch.

A magnetically-triggered proximity switch includes a cylindrical switch body and a bias member non-movably secured within the switch body. The proximity switch also includes first and second normally-closed contacts and first and second normally-open contacts. The proximity switch further includes a spherical contact magnet disposed within the switch body, with the contact magnet being movable relative to the bias member from a first switch position and a second switch position. In the first switch position, an attraction to the bias member maintains the contact magnet in contact with the first and second normally-closed contacts, thereby completing a circuit between the first and second normally-closed contacts. In the second switch position, an attraction to a movable target external to the switch body moves the contact magnet into contact with the first and second normally-open contacts, thereby completing a circuit between the first and second normally-open contacts.

Apparatus and methods for installing a MR-compatible magnet apparatus into a cochlear implant.

A medical appliance with an adjustment apparatus, such that cleaning of the medical appliance, constructed with the adjustment apparatus, can be carried out reliably and simply. The medical appliance includes a first setting device disposed at an outer side on a housing of the appliance, and a second setting device disposed in the interior of the appliance. The second setting device is designed to actuate a setting element for adjustment of a controllable and / or regulatable device. The first setting device and the second setting device each comprise magnet elements, by which the first setting device cooperates with the second setting device in such a way that the one setting device actuates the other setting device for the transmission of adjustments, the cooperation of the setting devices being achieved by way of a magnetic coupling.

Proximity switches include a hermetically sealed unit that can be used in harsh environments and under significant pressures, such as underwater and in nuclear power facilities, without having any parts that would require replacement or periodic maintenance. The proximity switches are preferably switches actuated by physical movement of a contact in response to changing magnetic forces. The switches are preferably disposed in a body tube optionally including a hermetic seal assembly to seal an open end of the body tube and / or a ferrule that prevents electrical wires attached to the switch inside the body tube from being pulled away from the switch. Further, the switches preferably maintain a contact pressure between electrical contacts sufficient to withstand acceleration seismic testing of 10 g with no contact discontinuity.

A magnetically-triggered proximity switch includes a cylindrical switch body and a first magnet non-movably secured within the switch body. The proximity switch also includes a pivoting cross arm. A second magnet may be movably disposed within the switch body, and the second magnet may be rigidly connected to the cross arm. When a magnetic target is not located within a specified range of the second magnet, the first magnet attracts the second magnet, thereby pivoting the cross arm into a first switch position and closing a first circuit. However, when the magnetic target is located within the specified range, the magnetic attraction between the target and the second magnet is greater than between the second magnet and the first magnet. The second magnet is displaced towards the target away from the first magnet, thereby pivoting the cross arm into a second switch position.

An improved means for magnetically operating push buttons and other controls on cameras in underwater housings is disclosed. The magnetic force of repulsion is employed to transmit motion through the case wall without electrical connection to the camera or sliding or twisting or flexible seals.

A magnetically operated electrical switch is presented. The electrical switch includes a linear magnet assembly contained within a housing and movable along an axis of the housing, a rod attached to an end of the linear magnet facing an open end, and means for attaching the housing to a surface. An electrical switch assembly attachable to the open end includes a make / break switch, a switch plunger and an operating lever engaging the plunger where the make / break switch is placed in the first position when an end of the operating lever is contacted by the rod. An electrical wire connection harness includes at least two conductors where the make / break switch closes / opens a connection between one of the conductors. When an operating magnet assembly is positioned on the surface proximate to the switch, the operating magnet moves the linear magnet and a position of the make / break switch is changed.

The present invention relates to a Hall Principle-based LED lit mechanical keyboard switch comprising a keymodule, permanent magnet, housing, LED lamp, Hall switch, elastic strip, top cover and spring; the keymodule consists of a plunger and a slider, the plunger has a key on top and a first locating pole at bottom; the slider has magnet mounting slot on its side wall; a second locating pole is provided at the bottom center inside the housing, the second locating pole is provided with a guide hole at its center, and a LED lamp mounting hole is provided on one side in the housing; Hall switch mounting hole and plunger slideway are provided on the neighboring side next to the side of the housing on which LED lamp mounting hole is provided.

The invention relates to the technical field of a magnetic switch, in particular to an assistant-returning magnetic approximate switch. The magnetic approximate switch comprises a shell, wherein a magnet, a first terminal and a second terminal are arranged in an inner cavity of the shell, an elastic contact piece is transversely arranged at the upper end of the second terminal, an assistant rod is arranged in the shell, an elastic tongue piece is arranged on the elastic contact piece, a limiting insertion plate is arranged at the outer end of the assistant rod and forms an L-shaped integral structure with the assistant rod, an assistant returning mechanism is arranged in the shell above the outer end of the assistant rod and matched with the limiting insertion plate, and the magnet is arranged between the assistant rod and an upper end plate of the shell and is in integral linkage with the assistant rod. The magnetic approximate switch is reasonable in structure; with the matching of the limiting insertion piece and the assistant returning mechanism, the control on a travelling include angle between the assistant rod and the magnet is achieved, and the reset action of the elastic tongue piece is matched during disconnection; the magnet is integrally and freely rotated with the assistant rod by a tray, and thus, the electrical connection reliability of a contact point is improved; and a guide arc groove protection structure is arranged during the disconnection travelling of the contact point, thus, the working stability of the approximate switch is improved, and the service lifetime of the approximate switch is prolonged.

The invention discloses a button apparatus of an electronic device. The button apparatus comprises a pressing component, a housing, a follow-up component and a switch. The pressing component and the follow-up component are respectively movably arranged on the outer side and the inner side of the housing, and have the same magnetism. The follow-up component and the switch are arranged at an interval. The follow-up component makes contact with and presses the switch under a magnetic thrust when the pressing component is pressed. Since the button apparatus is not provided with any through hole, the electronic device is made to have excellent waterproof performance. Meanwhile, a magnet is used as a non-contact promotion button, and when the stroke ends, the housing realizes a blocking effect so as to excessive stamping and damages to buttons.

A magnetic switching device is provided with a first switching device which is provided with a movable magnet connected to a contact bridge, and with a second switching device which is provided with a magnet connected to a movable switch element. The magnets have the same polarity on the front faces facing each other. Positioned between the magnets is a separating plate made of ferromagnetic material, which is smaller than the front faces of the magnets which face each other.

The invention relates to an electrical device, a magnetic knob assembly and a magnetic knob. The electrical device comprises a device body and a magnetic knob assembly. The magnetic knob assembly includes a panel and a magnetic knob; the magnetic knob includes a knob body and a distance sensor; the knob body that can be magnetically attracted to the panel includes a pedestal and a key arranged onthe pedestal in a pressing manner; and the distance sensor is arranged at one side, with the back against the knob body, of the panel and is capable of detecting displacement of the key when the key is pressed. The panel has a first signal passing area; the distance sensor arranged on the panel can detect the displacement of the key through the first signal passing area. The panel is arranged on the device body and the distance sensor is electrically connected to the device body. According to the invention, related elements are controlled to perform related functions by means of pressing, so that operation modes are diversified.

A control switch for controlling magnetic line of force is applied to a switch of an electronic equipment or an electrical equipment. The control switch includes a controlled switch, a control part, a first magnetic element, and a second magnetic element. The control switch is located in the housing of the electronic equipment or the electrical equipment. The control switch is electrically connected with the circuit loop of the electronic equipment or the electrical equipment. The control part is located on the exterior of the housing and is movable. The first magnetic element is installed on the control part. The second magnetic element is movably installed in the housing. The second magnetic element corresponds to the contact flake of the controlled switch. The first magnetic element and the second magnetic element can selectively generate a magnetic line of force reaction.

A medical appliance with an adjustment apparatus, such that cleaning of the medical appliance, constructed with the adjustment apparatus, can be carried out reliably and simply. The medical appliance includes a first setting device disposed at an outer side on a housing of the appliance, and a second setting device disposed in the interior of the appliance. The second setting device is designed to actuate a setting element for adjustment of a controllable and / or regulatable device. The first setting device and the second setting device each comprise magnet elements, by which the first setting device cooperates with the second setting device in such a way that the one setting device actuates the other setting device for the transmission of adjustments, the cooperation of the setting devices being achieved by way of a magnetic coupling.

The present invention relates to a Hall Principle-based LED lit mechanical keyboard switch comprising a keymodule, permanent magnet, housing, LED lamp, Hall switch, elastic strip, top cover and spring; the keymodule consists of a plunger and a slider, the plunger has a key on top and a first locating pole at bottom; the slider has magnet mounting slot on its side wall; a second locating pole is provided at the bottom center inside the housing, the second locating pole is provided with a guide hole at its center, and a LED lamp mounting hole is provided on one side in the housing; Hall switch mounting hole and plunger slideway are provided on the neighboring side next to the side of the housing on which LED lamp mounting hole is provided.

PROBLEM TO BE SOLVED: To reduce a change of an active position on gap fluctuation between a magnetic field detecting part and a magnetic field generating part of a magnetic proximity switch. SOLUTION: The magnetic field generating part 12 comprises a plate shaped magnetic metal body 13d, three permanent magnets 13a, 13b, 13c having a same shape and material and attracted by the magnetic metal body 13d. The three permanent magnets 13a-13c are arranged in parallel at an equal interval along a sliding direction of the magnetic field generating part 12 so that a pole face of an equal pole (an S pole) are going to face to the magnetic field detecting part 11. An isodynamic line linking points having a same gap directional component of magnetic force generated by the respective permanent magnets 13a-13c makes a curved line with a small change in the active position on the fluctuation of the gap direction on both sides. COPYRIGHT: (C)2007,JPO&INPIT

Switch apparatus (10) includes a switching assembly (16) and an operating component assembly (18) respectively designed for mounting upon relative shiftable members, such as a door (12) and frame (14). The assembly (16) includes a magnetic switch unit (30) having an elongated housing (40), first and second spaced apart switch elements (36, 38), and a shiftable, electrically conductive body (50) within the housing and movable between a first switch state where the body is in simultaneous contact with the switch elements (36, 38), and a second switch state where the body is not in such simultaneous contact. In order to prevent unauthorized opening of the relatively shiftable members through use of an external defeat magnet (62), the switch unit (30) is mounted substantially horizontally rather than in an upright or oblique orientation.