205results about "Mangetic float movement actuation" patented technology

A fluid level sensor that is particularly useful in fluid fuel tanks of motor vehicles wherein a resistor network is arranged on a fixed support and it is possible to generate an output signal from the resistor network which corresponds to the position of a float member. The level sensor has particularly low wear and is inexpensive to produce with a contact structure for the resistor network that operates through interaction of a magnetic member is moved by the float and can be deflected such that an electrical connection is dependent on the position of the float.

A magnetically actuated float switch for turning on and off an electrical load device which includes a mounting member, a moveable bracket member which is attached to the mounting member and which is moveable between a first bracket position and a second bracket position by an external force. The moveable bracket member further has a first magnetic end and a second magnetic end which define a space therebetween. The first magnetic end and second magnetic end are oriented in a repelling arrangement. Insertion of a magnet in the space between the magnetic ends of the bracket results in the moveable bracket being moved from the first position to the second position. The moveable bracket member is operatively arranged to change the state of a switch between a first and second state. The switch is in turn operably arranged to change the state of an electrical load device between an on state and an off state.

The invention provides a non-contact switch which can ensure reliability and realize miniaturization. A central magnet (6-2) of a plurality of magnets (6-1 to 6-3) arranged to be different in polarities is detected by two hall (IC9-2,9-3); therefore, reduction in size can be achieved by reducing the number of the magnets; and at the same time, the number of the hall ICs can be maintained and the reliability can be secured, as compared with a configuration in which the magnets and the hall ICs individually respond in one to one correspondence.

A magnetic waterproof switch assembly comprises a waterproof housing. A base, an iron sheet and a switch are set in the waterproof housing. An entrance of the waterproof housing is tightly sealed by a waterproof cover and is filled with a waterproof glue. A magnet controlling component is positioned outside the waterproof housing.

The invention relates to a multi-point control floater level switch which comprises a connecting box and a measurement cylinder. The multi-point control floater level switch is characterized in that a flange is assembled onto the measurement cylinder, a retaining ring is arranged under the measurement cylinder, a switch point is arranged under the retaining ring, and a magnetic floater is arranged on the retaining ring. The multi-point control floater level switch has the advantages of being reasonable in structural design, safe, reliable, strong in practicability and capable of meeting requirements for arranging a plurality of switch control points of users.

A gas relay for optical fiber trip of an intelligent substation mainly comprises a casing and an air vent valve. Light gas and weighted gas are filled in the casing, the light gas comprises a light gas floater arranged at the bottom, a light gas connecting rod is connected on the light gas floater, a light gas light shelter plate is connected on the upper portion of the light gas connecting rod, and a light gas light transceiver is configured at one end of the light gas light shelter plate and transmits alarm signals to a substation monitoring system through an optical fiber. The weighted gas comprises a weighted gas floater at the bottom, a weighted gas connecting rod is connected on the weighted gas floater, an oil flow retaining plate is arranged at the lower end of the weighted gas connecting rod, a weighted gas light shelter plate is connected at the upper end of the weighted gas connecting rod, and a weighted gas light transceiver is configured at one end of the weighted gas light shelter plate and can transmit alarm signals to the substation monitoring system through the optical fiber. Since the internal electromagnetic environment of the substation is complicated, the optical fiber as medium has high anti-interference capability and good electromagnetic compatibility and the like as compared with dielectric medium, and reliability of non-electric quantity protection of a transformer can be further improved.

The invention relates to a switch control panel (1), in particular for a motor vehicle, comprising an actuating surface (3) for manual action by means of an element (11), wherein the element (11) is in particular the finger of a human hand. The switch control panel (1) has a sensor which interacts with the actuating surface (3) such that the sensor generates a signal when the element (11) approaches the actuating surface (3) and/or when the element (11) contacts the actuating surface (3) and/or when the element (11) applies pressure to the actuating surface (3), wherein the signal is used to switch on and/or trigger a function in the manner of a switch signal. The actuating surface (3) forms a substantially closed surface.

The automatic controller comprises control circuit applied with pulse relay: water shortage signal value having magnetic floating ball and dry-reed tube as the two cooperated to each other for outputting signal of water supply, water off and water shortage, air-pressure type of water level meter having magnetic floating mark and regulation bar in cylindrical shape cavity to pick up water level signal for water box as some other place as the magnetic floating mark cooperated with the dry-reed tube to pick up signal of high and low water level in water box. The circuit cooperating with water shortage signal valve and water level meter can be used for water supply and water off protection as well as water level automatic control for the water box.

The invention relates to a vertical float switch which comprises a closed hollow housing, wherein a microswitch is arranged in the housing, a hollow float is arranged outside the housing, and the vertical float switch is characterized in that a Y-shaped rocker arm which can rotate horizontally for controlling the microswitch is further arranged in the housing, a rod-shaped suspension rod which can move up and down is further arranged in the housing, the lower part of the suspension rod extends out of the housing and is connected with the float, and magnets are arranged at two free ends of the rocker arm and the upper part of the suspension rod. The housing of the vertical float switch can be detached, the number of the magnets is increased, and a sealing liquid is increased in the position of an output conducting wire, therefore, compared with the prior art, the vertical float switch has the advantages of simplicity in manufacturing, convenience in mounting, long mechanical service life and electrical service life, stability in signal transmission, wide applicable spatial range and the like.

The invention relates to the technical field of electronic devices, and discloses a connecting rod floating ball liquid level switch. The connecting rod floating ball liquid level switch comprises a top cover, wherein the bottom of the top cover is fixedly connected with a connecting rod, the top of the connecting rod is fixedly provided with a mounting flange, the outer side of the connecting rodis movably sleeved with a floating ball body, the floating ball body can slide between an upper limiting ring and a lower limiting ring of the connecting rod, a magnetic reed switch is fixedly mounted in the connecting rod, an electromagnet is mounted in the floating ball body, the top of the upper limiting ring is provided with a protruding head, the top of the lower limiting ring is provided with a groove, the electromagnet is connected with an on-off device and a battery through wires, one side of the top of the on-off device is fixed with a spring, and the floating ball body is provided with a limiting block at the bottom of the on-off device. The connecting rod floating ball liquid level switch can effectively prevent the influence of water waves on the switch, and is slow in accumulation of dirt.

The invention relates to the technical field of a relay, and in particular to a three-pin reed switch type double-circuit trip node gas relay which is applicable for a gas relay on electrical apparatuses such as an operating transformer or a tapping switch. The gas relay comprises a reed switch and a floater, a heavy gas protection device and a slight gas protection device are arranged in a shell of the gas relay, transformer oil is arranged in an oil pipeline in the shell, and a side inlet is arranged on the shell. On the basis of the conventional gas relay, a contact type reed switch with three metal reeds is used as a signal output node, an alarm or trip signal sent by mistake due to poor insulation outside pins can be effectively prevented, outside interference is reduced, protection reliability is enhanced, and a fault due to oil leakage of the transformer or a fault inside the transformer can be rapidly distinguished. The three-pin reed switch type double-circuit trip node gas relay has the characteristics of high insulativity of a secondary circuit, and safe and reliable use; the three-pin reed switch type double-circuit trip node gas relay is capable of avoiding false operation of the contact, is simple and reasonable in structure, obvious in effect, and is beneficial to promotion and application.