823 results about "Repulsion force" patented technology

A single pole, double throw micro-electromechanical (MEM) switch. The inventive switch includes a first contact providing a first terminal of the switch. A second contact provides a second terminal of said switch. A cantilever beam provides a third terminal of the switch. The inventive switch includes a system for electrostatically pushing or pulling the beam to disengage the first contact and engage the second contact. In an illustrative implementation, the system for electrostatically operating the switch includes a first charge storage structure on the beam, a second charge storage structure on the switch, and an electrical supply for creating an electrical charge on the first and the second charge storage structures. The first and second charge storage structures are effective to create a force of repulsion therebetween on the application of an electrical charge thereto. The "pull" electrostatic force closes the MEM switch. The "push" force aids in opening the switch. The "push" capability is the result of the use of like (same polarity) electrostatic charges on the control surfaces. The like charges provide an electrostatic repulsion force during the switch opening process.

A magnetic fastening device with discrete slidable adjustments, comprising first and second sheets, each having a plurality of magnetic section elements with first and second poles disposed in alternating groups defining predetermined abutting patterns. The magnetic section elements are abuttingly disposed in two groups. In one group, the elements' magnetic field is disposed in one direction perpendicular to the sheets. In the other group, the elements' field is disposed in the opposite direction. The groups repeat themselves in an alternating pattern. The movement of the first and second sheets is constrained to keep them in an abutting relationship with respect to each other over a predetermined path over the first and second sheets, thereby permitting the sheets to be slidably movable along a predetermined distance relative to each other in discrete steps that overcome the attraction and repulsion forces of the magnetic section elements upon the application of a pulling force of a predetermined magnitude.

In a driver golf head (1) comprising a face (4) having a hitting surface, a sole (3) forming a lower portion, and a crown (5) forming an upper portion, the sole (3) is improved. The sole (3) in the position close to the face (4) was formed into an elastically deformable recess-projection shape, and part of the face (4) was formed into a projecting shape and integrated with the sole (3) to increase rigidity. Using a configuration with increased rigidity and decreased rigidity between the face (4) and sole to obtain an elastically deformable portion and providing a high-rigidity body (12) increased the repulsion force in the lower portion of the face and extended the traveling distance of the golf ball.

The invention discloses a self-adaptive control mechanism which couples an electromagnetic repulsion system with a permanent magnetism system. The invention adopts an electromagnetic repulsion device spinning disk of circular table structure, relatively to the circular disk spinning disk, which maintains the mechanical strength and output capacity of the spinning disk, simultaneously greatly reduces the increase of kinematic scheme mass of the control mechanism, and greatly enhances the driving load capacity of the control mechanism. The control mechanism of the invention adopts the self-adaptive motion proposal, which avoids the frequent high speed motion of a breaker, reduces the mechanical strength request for the breaker, and prolongs the motion life of the breaker effectively.

An orthodontic assembly for moving selected teeth of a patient includes a hollow aligner shell that fits over a set of selected teeth. The aligner shell supports a series of tooth moving elements, such as magnets or metal engagement plates that are fixed in place in alignment with the selected teeth. Metal plates or magnets are affixed to the selected teeth and when the aligner shell is fitted over the teeth, the magnets in the shell exert attraction or repulsion forces on the metal plates to move the selected teeth in accordance with a treatment protocol.

The efficient multineedle electrostatic spinning sprinkling device includes constant pressure supplying system, spinnerette connected with the constant pressure supplying system, receiver electrode plate and electrostatic generator; said spinnerette is multineedle combined spinnerette, it includes spinnerette main body, cover and seal ring the two, the main body is provided with fluid cavity,the bottom of the main body is equipped with several metal nozzles, three adjacent metal nozzles are set up in regular triangle and the abduction of each circle of metal nozzles is in regular hexagon; insulated supporting parts are installed on the bottom of the main body, metal rings encompassing all metal nozzles are installed on the lower of said supporting parts, said metal rings and metal nozzles are connected with electrostatic generator directly. The invention achieves the goal of multi-needle injection simultaneously by improving the intensity of field of spinnerette, reduces the fluid jet electrostatic repulsion forces greatly caused by the small distance between the needles and makes the receiver can receive fiber in small range, so increases the efficiency in unit area and obtains carpet fiber with more uniform thickness.

A suspension maglev rail transit system includes an orbital system, a suspension system, a control system and a car system, wherein the control system comprises a drive system, a guidance system and asuspension control system, wherein the track system is suspended in the air through upright posts, the car system is suspended vertically below the track system through the suspension system, and thedrive system and the guidance system cooperate to drive the car system to operate in the track system. The invention utilizes the levitation force with the permanent magnet repulsion force as the main force and the electromagnetic regulation as the auxiliary force to suspend the car on the air track, and realizes the stable operation through the non-contact traction of the linear motor. The invention has the advantages of low energy consumption, high safety, no land occupation, low cost, strong climbing ability, small turning radius and wide adaptability.

A golf glove for increasing the flying distance of golf ball has an insert that provide a repulsion forces to the grip of a golf club when the head of the club impacts a golf ball. The insert is made of synthetic elastomer such as polyurethane, silicon rubber, EVA (Ethylene Vinyl Acetate copolymer, EMA (Ethylene Methyl Acetate copolymer), or EAA (Ethylene Acrylic Acetate copolymer). The insert has a planar shape that fits to the concave inner surface of human palm. The insert is firmly attached to the inner surface of the palm side of a golf glove.

The invention provides a box cover locking device, which comprises an electromagnet. A permanent magnet is arranged on a box cover. The magnetic pole of the electromagnet is opposite to the magnetic pole of the permanent magnet, so that the box cover can be opened by the repulsion force generated between the electromagnet and the permanent magnet on the box cover when the electromagnet is powered on. When the electromagnet is powered off, the electromagnetic force of the electromagnet disappears, and an iron core of the electromagnet is attracted by the permanent magnet so that the box cover is closed. The box cover locking device has the advantages that the reliability in use of the locking device is improved since motion components, extra holes and plug-in and plug-out mechanisms are omitted; power consumption is reduced and the self-holding time of an automatic storage management system is prolonged by the aid of the design that the box cover is opened when the electromagnet is powered on and is closed when the electromagnet is powered off. The invention further provides a controllable storage box comprising the box cover locking device and a drug consumable storage system comprising the controllable storage box.

Based on a quick switcher and a liquid metal flow restricting device and a flow restricting method, the quick switcher is connected with the liquid metal flow restricting device in parallel and then connected with a circuit breaker in series. Under normal working circumstances, most of the currents can flow through the branch circuit in which the quick switcher is arranged nearly without loss; and once the short circuit current error occurs, a repulsion force mechanism quickly drives a connecting rod to cause a bridge contact to realize quick disjunction, and the currents are gradually transferred to the branch circuit in which the liquid metal flow restricting device is arranged. When the liquid metal flow restricting device restrains the short circuit currents to a range which the circuit breaker can open and close, the circuit breaker can open and close the short circuit currents. The invention has a simple structure, is particularly suitable for restraining the error currents in middle-lower pressure field AC/DC system, and can reduce the burden of various electrical devices such as circuit breaker.

There is provided a Ti alloy hollow club head which is more lightweight yet capable of realizing a better repulsion force by adjusting weight and thickness of a club head plate, with its strength ensured. Ribs are formed by chemically polishing the inner surface of a material of a crown plate to a 0.3 to 0.9 mm thickness, and a 0.3 to 4 mm width, and then first concave portions are formed to a 0.2 to 0.5 mm thickness. Thus, strength of the crown plate can be ensured by the ribs, while making the thickness thereof as thin as possible.

An improved coordinates input apparatus for designating a particular set of coordinates in three-dimensional space has a substantially box-like frame, a first magnet, a second magnet, and a plurality of magnetoelectric transducers. The first magnet and second magnet are mounted on the frame and disposed so that sides thereof having identical magnetic poles are disposed opposite each other. The second magnet is disposed so as to be tiltable in response to a disposition of forces acting thereupon. The forces include a repulsive force arising between the first magnet and the second magnet and a pressing force exerted on the second magnet. The plurality of magnetoelectric transducers mounted on the frame opposite the second magnet and output voltage values that vary according to a change in a gap between the magnetoelectric transducers and the second magnet, such that the voltage values indicate a set of X,Y coordinates in two-dimensional space.

The invention discloses a magnetic latching relay capable of resisting a short-circuit current. The magnetic latching relay comprises a magnetic circuit system, a contact system and a push mechanism, wherein a movable spring part comprises a movable contact, a movable spring plate and a movable spring lead-out plate; the movable spring lead-out plate is arranged at one side, departing from the moving contact, in the thickness direction of the movable spring plate; a fixed spring part comprises a fixed contact, a fixed spring plate and a fixed spring lead-out plate; the fixed spring lead-out plate also is arranged at one side, departing from the moving contact, in the thickness direction of the movable spring plate, so that the direction of current flowing through the movable spring lead-out plate is opposite to that of the current flowing through the movable spring plate. According to the magnetic latching relay, the electro-dynamic repulsion force generated by single short-circuit current between the movable contact and the fixed contact can be resisted by electromagnetic repulsion force generated by formed double short-circuit current on the movable spring plate on the basis of not increasing the overall dimension of a product or not increasing the power consumption of a coil control part, so that the closing pressure of the movable contact and the fixed contact is greatly improved, the short-circuit current is resisted and the requirements of the product on simple, compact and small structures are met.

An energy conversion magnetic circuit is constituted with magnet pole pieces of magnets or armatures which are in parallel with respect to the shaft to obtain a dynamic force or an electromotive force. The magnetic circuit for a generator or an electric motor has a rotating shaft, a plurality of supporters fixedly mounted in a perpendicular direction to the circumference of the rotating shaft, a plurality of rotors arranged in parallel with respect to the shaft on each end of the plurality of supporters to be rotated by attraction force and repulsion force of a magnetic field, and a plurality of armatures having a coil wound on the body thereof. The coil is mounted at an interval outside the rotors and receives induced alternate magnetic flux of the rotors to generate a rectangular wave electromotive force or to obtain a high torque with input of electrical energy. The alternate magnetic flux generated when rotated, and magnet pole piece are arranged in parallel with the rotating shaft

The invention provides an unmanned aerial vehicle formation form automatic generation method. The method comprises the following steps: 1) determining resultant force of repulsion forces applied to each unmanned aerial vehicle by other unmanned aerial vehicles in a preset unmanned aerial vehicle formation form fitting pattern in unmanned aerial vehicle formation; 2) calculating tangential components of the resultant force of the repulsion forces in the formation form fitting pattern; 3) determining displacement amount and displacement speed of the unmanned aerial vehicle along a track line/surface of the form fitting pattern according to the tangential components; 4) carrying out position adjustment along the track line/surface of the form fitting pattern according to the determined displacement amount and displacement speed; 5) judging whether the current position meets a position adjustment end condition, if so, carrying out the step 6), and if not, carrying out the steps1)-4) circularly; and 6) taking the form formed after position adjustment of all unmanned aerial vehicles in the unmanned aerial vehicle formation as the form of the generated unmanned aerial vehicle formation. The method and device can enable unmanned aerial vehicles to change formation forms to meet the requirements of environment transformation and fleet quantity increase and decrease.

The invention discloses a magnetic levitation device comprising a floater and a magnetic levitation base, a power electromagnet is arranged on the magnetic levitation base, a control instruction for controlling the state of the floater is sent to a micro-control unit through a state control module, the power electromagnet is driven to generate attractive force or repulsion force to realize the rising, falling, or rotation of the floater. Compared with the prior art, the magnetic levitation device can freely control the state of the floater, such as rising, falling, or rotation, based on the user's control instruction, and the user experience is good.

The invention relates to a method for cleaning the filters of a vacuum cleaner comprising a dirt collecting container, which has a suction inlet and is in flow connection with at least one suction unit via at least one filter and at least one suction extraction line, and comprising at least one external air inlet which opens into the suction extraction line downstream of the filter and can be closed by a closing valve, wherein the closing valve has a movable valve body which is acted upon by a closing spring with a closing force, which valve body lies against a valve seat in a closed position and is at a distance from the valve seat in an open position, wherein, in order to clean the filter, at least one closing valve is opened and the side of the filter that is oriented away from the dirt collecting container is impinged upon by external air. To develop the method in such a way that all the filters present can be flowed through by suction air during suction operation, but for the user there does not have to be any noticeable interruption in suction operation for filter cleaning, it is proposed according to the invention that the valve body is acted upon, irrespective of its position, by the closing force of the closing spring and, in a position at a distance from the valve seat, additionally acted upon by the repulsion force of a resilient stop element.