CN107799354A - A kind of hydraulic pressure triggers electric switchgear automatically - Google Patents

Abstract

The present invention discloses a kind of hydraulic pressure and triggers electric switchgear automatically, and water pressure change mainly is passed into electric trigger including electric trigger and water pressure inductor, described pressure inductor, starts electrode occurs for electric trigger contact or disconnection；It is characterized in that：Described electric trigger is in water-proof sealing room, it is made up of relatively discontiguous two electric contact point up and down, top electric contact point is fixed on contact chamber upper wall, and bottom electric contact point is arranged on one end of a crow bar, and the other end stretches out confined chamber as fulcrum using closed locular wall and enters water entry pressure inductor；Described water pressure inductor is made up of floating body, floating drum, spring, floating body in floating drum by spring at the top of bottom top pressure to floating drum, spring can make regulation flexible up and down by the set screw of floating drum bottom.

Description

A kind of hydraulic pressure triggers electric switchgear automatically

Technical field

The present invention relates to a kind of electric switchgear, more particularly to the electric switchgear of the different triggerings of water pressure, belongs to electricity Physics technology field.

Background technology

Switch refers to that one can make open circuit, the electronic component for making current interruptions or making it flow to other circuits.Open The principle of pass is the " closed " of contact（closed）Represent electronic contact conducting, it is allowed to which electric current flows through；" open circuit "（open）Represent Electronic contact is not turned on forming open circuit, does not allow electric current to flow through.

It is divided into waved switch, band switch, playback switch, power switch, preselection switch, limit switch etc. according to purposes. It is divided into microswitch, ship type switch, toggle switch, toggle switch etc. according to structure.

Simplest switch has two metals for being named as " contact ", electric current is formed loop, two contacts during two contacts Current open when not contacting.It need to be considered during from contact metal to erosion-resisting degree, because meeting after most metals oxidation The oxide of insulation is formed, makes contact can not normal work.From contact metal it is also contemplated that its electrical conductivity, hardness, machinery are strong Degree, cost and whether the factor such as poisonous.Noncorroding metal is electroplated on contact sometimes.The contact surface of contact can be typically plated in, To avoid influenceing its performance because of oxide.Sometimes contact surface can also use nonmetallic conductive material, such as conductive plastic.Switch In in addition to contact, also have movable piece make contact turn on or be not turned on, switch can not be all to be divided into lever according to movable piece Switch（Toggle switch）, key switch, ship type switch（Rocker switch）Deng, and movable piece can also be its alloytype The mechanical linkage of formula.

Rated voltage：The voltage that the safe voltage that refer to switch is allowed in normal work is added in switch ends is more than This value, sparking breakdown between two contacts can be caused.

Rated current：Allow the maximum safe current passed through, when more than this value, the contact of switch when referring to switch connection It can be burnt because electric current is excessive.Insulaion resistance：Refer to the conductor part of switch and the resistance value of insulated part, insulating resistance value should be More than 100M Ω.Contact resistance：Refer to switch in the on state, the resistance value between each pair contact is typically required in 0.1- 0.5 below Ω, this value are the smaller the better.It is pressure-resistant：Refer to the ceiling voltage switched to can bear between conductor and ground.Life-span：Refer to In normal working conditions, operable number typically requires at 5000-35000 times or so switch.

Optoelectronic switch is the member in sensor extended familys, and it converts the strong and weak change of light between transmitting terminal and receiving terminal It is the change of electric current to reach detection purpose.It is electrically isolated due to optoelectronic switch output loop and input circuit（I.e. electric edge Absolutely）, so it can be applied in many occasions.

The New Generation Optical electric switch device that optoelectronic switch is manufactured using integrated circuit technique and SMT surface mounting technologies, With delay, broadening, it is outer it is synchronous, anti-interfere, reliability is high, working region is stable and the intelligent functions such as self diagnosis.This The novel optoelectronic switch of kind is a kind of using pulse modulated active Photodetection system type electronic switch, and it is used cold Light source has infrared light, red light, green light and blue light etc., can be non-contact, rapid with no damage and the various solids of control, liquid The state of the materials such as body, the transparent body, black matrix, flexible body and smog and action.It is low, smart response speed to be present in contact travel switch The shortcomings of degree is poor, contact detection is easily damaged detected material and short life, and the operating distance of transistor proximity switch is short, it is impossible to Directly detect nonmetallic materials.But novel photoelectric switch then overcomes their disadvantages mentioned above, and small volume, function it is more, Long lifespan, precision height, fast response time, detecting distance is remote and anti-light, electric and magnetic interference ability is strong.

This new optoelectronic switch has been used as Level measurement, Liquid level, product counting, width differentiation, speed inspection Survey, cut-to-length, hole identification, signal delay, automatically-controlled door sensing, colour code detection, punch press and cutter and security protection etc. Numerous areas.In addition, using the disguise of infrared ray, can also be in the field of bank, warehouse, shop, office and other needs Cooperate to be used for anti-stealing warning.

Switching Power Supply is to utilize modern power electronics technology, the time ratio that controlling switch pipe turns on and off, and remains steady Determine a kind of power supply of output voltage, Switching Power Supply is typically by pulse width modulation（PWM）IC and MOSFET is controlled to form.Switch electricity Source is compared with linear power supply, and the cost of the two all increases with the increase of power output, but the two rate of rise is different.Linearly Power supply cost is on a certain power output point, and on the contrary higher than Switching Power Supply, this point is referred to as cost rollback point.With power electronics The development and innovation of technology so that switch power technology is also innovated constantly, and this cost rollback point is increasingly to low output electricity Power end is moved, and this provides wide development space for Switching Power Supply.

Switching Power Supply high frequency is the direction of its development, and high frequency minimizes Switching Power Supply, and enters Switching Power Supply Wider application field, the particularly application in high-technology field, minimizing, being light for new high-tech product is promoted Change.The development of other Switching Power Supply and apply save the energy, economize on resources and environmental protection in terms of all have great importance. The power electronic devices applied in Switching Power Supply is mainly diode, IGBT and MOSFET.SCR is in Switching Power Supply input rectifying electricity There is a small amount of application in road and soft starting circuit, GTR drivings are difficult, and switching frequency is low, is gradually substituted by IGBT and MOSFET.

The content of the invention

Respectively although switch advanced technology, water-proof function have much room for improvement.In order to produce a kind of waterproof and can with water pressure The electric trigger device of automatic switch is carried out, we have invented a kind of hydraulic pressure to trigger electric switchgear automatically.

A kind of hydraulic pressure triggers electric switchgear solution problem and adopted the technical scheme that automatically：A kind of hydraulic pressure triggers automatically Electric switchgear includes electric trigger and water pressure inductor, and water pressure change is passed to electric triggering by described pressure inductor Device, start electrode occurs for electric trigger contact or disconnection；Described electric trigger is in water-proof sealing room, by up and down relatively not Two electric contact points of contact are formed, and top electric contact point is fixed on contact chamber upper wall, and bottom electric contact point is arranged on one end of a crow bar, separately One end stretches out confined chamber as fulcrum using closed locular wall and enters water entry pressure inductor；Described water pressure inductor by floating body, floating drum, Spring form, floating body in floating drum by spring at the top of bottom top pressure to floating drum, spring can by floating drum bottom set screw make Flexible regulation up and down.

The beneficial effect that a kind of hydraulic pressure triggers electric switchgear automatically is：A kind of hydraulic pressure triggers electric switchgear utilization automatically One floating body and spring interaction, the buoyancy change for sensing water move up and down, and will be moved through crow bar and pass to triggering room It is interior, cause the contact or disconnection of electric contact, switching current is made in the change that water pressure is sensed for whole device, is served various Marine devices.

Brief description of the drawings

Fig. 1 is the side sectional median plane schematic diagram that a kind of hydraulic pressure triggers electric switchgear automatically.In figure：1. floating body, 2. are floated Cylinder, 5. set screws, 3. conductor wires, 4. springs, 6. little springs, 7. electric contact points, 8. fulcrums, 9. confined chambers, 10. crow bars.

Embodiment

Below in conjunction with the accompanying drawings to being that a kind of hydraulic pressure triggers the further implementation explanation of electric switchgear work automatically.

Fig. 1 Fig. 1 is the side sectional median plane schematic diagram that a kind of hydraulic pressure triggers electric switchgear automatically.Fig. 1 can be allocated as a left side Right two large divisions explains, and the left side is confined chamber 9, is connected as one with the floating drum 2 on the right side, the straight relation of phase mutual respect, and closed Room 9 is placed in the lower side of floating drum 2.Have a bar-shaped floating body 1 in Fig. 1 inside floating drum 2, the bottom of floating body 1 be sequentially connected spring 4, Set screw 5, set screw 5 are supported with 2 times bottom walls of floating drum.Bar-shaped floating body 1 in Fig. 1 pushes up the top for having arrived floating drum, it is impossible to Freely move up and down, controlled completely by spring 4.One electric contact point 7 is arranged at the left side confined chamber 9 in Fig. 1, top, and an electricity is also arranged at bottom Contact 7, but the electric contact point 7 of bottom is then adhered to the end of a crow bar 10, and the other end of crow bar 10 stretches out confined chamber and enters floating drum 2 The bottom of lower float 1, the moving down or move up of floating body will likely touch crow bar 10 and make motion, and this motion is by confined chamber Fulcrum 8 acts on back transfer and moved up and down to electric contact point 7, the action for contacting with each other and disconnecting, and completes by conductor wire 3 Current switch acts.

Claims (1)

1. a kind of hydraulic pressure triggers electric switchgear automatically, mainly including electric trigger and water pressure inductor, described feeling of stress Answer device that water pressure change is passed into electric trigger, start electrode occurs for electric trigger contact or disconnection；It is characterized in that：It is described Electric trigger in water-proof sealing room, be made up of relatively discontiguous two electric contact point up and down, top electric contact point is fixed on contact Chamber upper wall, bottom electric contact point are arranged on one end of a crow bar, and the other end stretches out confined chamber as fulcrum using closed locular wall and enters hydraulic pressure Power inductor；Described water pressure inductor is made up of floating body, floating drum, spring, and floating body is in floating drum by spring in bottom top pressure At the top of to floating drum, spring can make regulation flexible up and down by the set screw of floating drum bottom.