CN85205253U - Hook-type contactor - Google Patents

Abstract

The utility model provides a hook-type contactor, belonging to electromagnetically-controlled electrical apparatus, mainly comprising small electric magnet, eternal iron, link, crank, pin, back spring, large electric magnet, and hook, which is a mechanical contactor used in electrical equipment. The contactor substitutes energy consumption of the large electric magnet by the small electric magnet, with simple equipment. The utility model has the advantages of simple manufacture, low cost, convenient installation, safety, clear principle, low noise, and high energy-saving efficiency up to over 96%.

Description

Hook-type contactor

The invention is a kind of control device, is a kind of electric controling switch in the embodiment of the invention.

" A.C. contactor " in the contactor is the electric device of extensive use in the electric equipment, it is as a kind of remote control switch, in industrial and agricultural production, serving as important role, along with modern development of industry and agriculture, control device strides forward to extensive automation direction, and the stability and the reliability of " A.C. contactor " are had higher requirement.They are mainly aspect two:

(1), higher mechanical endurance and electrical endurance, mechanical endurance, the contactor of root device different model required to reach 10-800 ten thousand times, electrical endurance is 1/5th of mechanical endurance, but actual present product does not reach this requirement far away especially aspect electric, mainly show as contact pressure and cause loose contact inadequately, produce excessive temperature and burn out each insulation support frame of contactor itself, contact coil and electric equipment.

(2, require that lower pick-up voltage is arranged, can improve the reliability of control system so greatly, present domestic 85% UH that is reduced to the seventies from the 90%UH of the fifties, abroad 3TB series " A.C. contactor " pick-up voltage as West Germany is 80% UH, the PIL series of K-M company is 75%UH, the present stream line voltage of China is stable inadequately comparatively speaking, and its fluctuation range reaches 75%-110% UH sometimes.Like this, " contactor " adhesive is not gone up when low-voltage, thereby even causes coil burnout that The whole control system can't be worked.In recent years, the energy problem that generally payes attention to placed on the agenda both at home and abroad, and energy-conservation economize on electricity has become the work that all trades and professions must be grabbed.And a large amount of at present " A.C. contactors " that use had both taken, efficient is low again, according to 91 in total power consumption of being introduced on 80 pages of China Machine Press's " low-voltage electrical " books, 5% electric energy all wastes, and only 8,5% electric energy is meritorious consumption, again because voltage fluctuation, the pressure of sound contact makes electric equipment and coil burnout inadequately, need often to change, cause to produce and end, more exchange device causes waste, increase operating cost, and noise is bigger, contaminated environment, big electromagnet is again because of in running order always in process of production, not only power consumption is many, waste energy, the useful life of reducing iron core and coil again." the noiseless contactor " of promoting repacking at present has DJ type, WJ type all to use diode, resistance, electric capacity are formed by combining, change DC operation into, do not have the vibration of interchange, the adhesive action is fast, and pick-up voltage is low, the extension coil life-span, eliminate noise, improve power factor of electric network, reduce in the circuit advantages such as electric energy loss.But also have many weakness, often break down, though as the adhesive but have of being failure to actuate after the adhesive beat, can adhesive but can not keep, can combined floodgate work, but after still having hum, outage, but situation such as can not break away from, caused the deadly defect of DC operation, be that electronic original part often damages, uptime than original " A.C. contactor " is also short, though saved electric energy, but, cause present popularization not gone down because of the expense of changing electronic original part is more.

The purpose of the invention, be to keep under former " A.C. contactor " relevant situation of performance parameter, for society provides a kind of high-effect, Mechanical Contact device of economize on electricity, durable, not fragile iron core, coil cheaply, be used for the electric equipment power supply control of all industrial and mining enterprises.

Deficiency and the defective of the invention from eliminating two kinds of contactors simultaneously, the relevant performance parameter that keeps former contactor is utilized a kind of mechanical device---" dropper contactor " of principle design such as lever, connecting rod, electro permanent magnetic.Can be used for all malleable original states and need to keep original state constant: the occasion that only consumes a small amount of kinetic energy.In the actual use and test situation of the invention, promptly be from " A.C. contactor " this concrete example, increase the pressure of sound contact, guarantee good contact reliably, under the situation of maintenance and the former performance of raising, reduce contactor itself and electric equipment, spoilages such as motor, reach economize on electricity, the energy-conservation effect that reduces cost again, change and utilize big electromagnet coil (16) energising to attract in the former contactor, keep the power consumption defective of contactor operating state, in energising in a flash, adhesive magnet and run into hook, while also makes little electromagnet (20) conduction produce magnetic force, by connecting rod (2), crank (3), the effect of ejector pin (4) makes hook (6) location, contactor (18) is touched close and do not break away from, the same effect when reaching with big electromagnet (16) energising.And don't consume too much electric energy, prolong the working life of big electromagnet (16) and coil.

This contactor mainly contains little electromagnet (20), permanent iron (1), connecting rod (2), crank (3), ejector pin (4), set screw (5,8), extension spring (11) and hook compositions such as (6,7).

The using method of this contactor is: with a button type mains switch (also available computer control button when extensive series is controlled A.C. contactor), make one by behind the button switch, after former A.C. contactor (18) energising, big electromagnet (16) is switched on immediately and is attracted moving iron core (14) to draw close to static iron core (15), hook (7) is close with hook (6), the normally closed point of contactor auxiliary contact disconnects simultaneously, the normal closure of making war, make little electromagnet (20) conducting, produce magnetic force, attract permanent iron (1) to hold connecting rod (2) and crank (3), crank (3) is fixed by locating shaft with ejector pin (4), make hook (6) become the location hook, hook (6) has set screw (5) because of top, so can not tilt upward, because of the usefulness of ejector pin (4) can not be to having a downwarp), (hook this moment (7) can move downwards because the effect of inertia of electromagnetic force in hook (7), and can not upwards move the position---and because of the effect of set screw (8), have the both sides of hook (7) to have ball or washer to make it and can not swing again) tangle with hook (6).And can not break away from (because of extension spring (11) has draw to hook (7)) again, made originally to reach the function that attracts closed contactor (18) because of the normal open power consumption by big electromagnet (16).Change into work by little electromagnet (20), and the power consumption and the material consumption of saving big electromagnet.Because making rotating shaft (17) drive whole " A.C. contactor ", the effect of contactor (18) is in closure state, combined closely in the contact, the clutch phenomenon of not beating, guaranteed that electric equipment well contacts conduction and normal operation, thereby prolonged the useful life of contactor and electrical equipment.When voltage ripple of power network scope 40%-50%, big electromagnet (16) is easily ruined with electrical equipment, and generation arcing damage, now pass through because of big electromagnet (16) no current, and do not have outside the damage, when little electromagnet (20) quits work owing to the fluctuation of voltage, also just the same with the situation that will stop contactor (18) work, only need press and stop button, little electromagnet (20) does not just produce suction yet and produces under the extremely weak situation of suction whole connecting rod (2) and locate all inoperative to ejector pin (4) because of having electricity and owing electricity, hook (6) since the gravity of self and the pulling force of hook (7) under the effect of lever principle, the hook of hook (6) partly upwarps (connecting rod (2), move on the permanent iron (1)) because the effect hook (7) of contactor (18) lower springs (19) and the partly equal outward turning of the moving plate of whole moving iron core (14) contactor (18), hook (7) and hook (6) break away from, and the working position of whole contactor (18) is stop conducting and opening circuit also.

The advantage of the invention is, equipment is simple, make easily, manual dexterity, safe and reliable, principle is clear, easy for installation, with low cost, power savings is obvious, do not produce environmental noise, increased " A.C. contactor " useful life again with whole electric equipment.Only from economizing on electricity one.According to " energy project " 88 years the 4th phases 22 pages of last reports, every 250 A/3-380 volt contactor is an example, one day two order of classes or grades at school, calculate 1 year 300 working day, annual active electrical degree 198 degree of saving, idle electric degree 1070 degree (10% is active electrical degree in the idle electric degree), therefore a year amount of electricity saving is 300 degree altogether, in every degree electricity 0.09, surplus the above big-and-middle-sized contactor about 10,000 of Hangzhou 100 peace, surplus 3,000,000 degree that can economize on electricity, the electricity charge 270,000 of paying wages less yuan.This only calculates with one city, Hangzhou, and is just very considerable as calculate only one of this economize on electricity from the whole province, the whole nation, is to have far-reaching strategic importance for the building of the four modernizations under current China energy scarcity state.

Description of drawings:

1, permanent iron plate 2, connecting rod 3, crank 4, ejector pin 5,8 set screws, 6,7 hooks 9, adjustable screw 10, contactor baffle plate 11, extension spring 12,13, little rotating shaft 14, moving iron core 15, static iron core 16, electromagnet (coil) 17, rotating shaft 18, A.C. contactor 19, spring 20, little electromagnet 21, moving plate moving direction

Implement relatively:

100% 100% 200% repackings of the noiseless contactor dropper contactor of former contactor sound contact force takes 44 decibels of 75 decibels of environment values of the first power savings 60-90% fragile electronic component of electrical equipment in the 96% service life fragile Service life several times noises (10 centimeters) of the 10-15 of 40-50 unit

On 400 peaces (A), 600 peaces (B)

Repacking back effect is (410 volts of line voltage distributions) electric current A 1.55A 0.055A relatively

B 1.8A 0.057A apparent power A 635.5VA 22.55VA

B 738VA 23.37VA active power A 254.2W 9.02W

B 295.2W 9.3W electric energy A 96.45%

B 96.8% reduces non-power consumption loss A 96.45%

B 96.8％

Claims (2)

1, dropper contactor is characterized in that having a little electromagnet (20), permanent iron (1), connecting rod (2), crank (3), ejector pin (4), set screw (5,8), extension spring (11) and hook (6,7) are formed.

2, contactor according to claim 1 is characterized in that there are ball or washer in the both sides of hook (7) rotating shaft (12) settled on A.C. contactor.

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