CN2337379Y - Micro-consumption electric valve - Google Patents

Abstract

The utility model relates to a micro power consumption electric valve which comprises a valve body, a water inlet way, a water outlet way, a valve core, three magnetic steels and a micro motor, wherein, a magnetic steel is installed on the top end of the valve core. The valve body is also provided with a disc and a rotation stop tip. The disc is driven by the axis of the micro motor. The other two magnetic steels are installed on the disc. The positions of the two magnetic steels guarantee that when the disc is rotated, any a magnetic steel has a corresponding state to the magnetic steel on the valve core. The polarities of the two magnetic steels are opposite and have a definite angle. The disc is also provided with a fanlike notch or a fanlike groove which has an equal radian with a radian between the two magnetic steels. The rotation stop tip which is fixed to the top end of the valve body can be extended into the notch or the groove. The utility model has the advantages of little power consumption, small size, low cost, good tightness and no leakage.

Description

Little power consumption mortor operated valve

The utility model relates to the liquid switch valve technology field, is specifically related to a kind of little power consumption mortor operated valve.

Existing electric valve is by valve body, spool, push rod, eccentric cam mechanism, compositions such as reduction gear.By motor rotating band movable eccentric wheel, make push rod reciprocating.Realize the switch control of valve.The problem that this class valve exists is that push rod to-and-fro motion neatly on the one hand promotes the switching spool valve.Simultaneously, in order stoping along push rod shaft to clearance leakage, in the cooperation place of push rod and valve body rubber seal to be set, or to adopt pilot valve and piston, Returnning spring etc. like this, just strengthen the push rod resistance, have increased the power consumption of drive motor.Experiment shows the valve of this structure, and working pressure and driving power consumption are proportional, and simultaneously, the wear and aging of rubber seal will cause the leakage of valve, makes it to lose efficacy.For overcoming the above-mentioned shortcoming of prior art, patent 91208374.2 discloses a kind of " low-power electro-magnetic valve and manufacture method thereof ", it mainly is made up of the valve body structure of motor, slowing-down structure, interior outer magnet and valve rod, valve block, the suction of outer magnet scolded active force to remove to quote valve rod in it utilized, and controlled the keying of valve.The electrically-controlled valve power consumption of this structure is less, but its outer magnet turn displacement is to adopt worm screw to come and go the slowing-down structure of moving slider or round mobile tooth sector of worm screw or pinion gearwheel, its relative shift by on the helical pitch of worm screw or the gear wall etc. the arc groove amount of moving of revolving that wears fixing shelves post controlled, complex structure, the use parts are more, thereby cause volume and cost bigger.

The utility model ground provides a kind of and is driven by micro motor the prior art above shortcomings, scolds effect to drive spool with the suction of internal-external magnetic steel and opens and closes, outer steel is realized displacement by the disk of micro motor for driving, and is by spline tip location, simple in structure, reliable operation, the mortor operated valve that power consumption is little.

The technical solution of the utility model is as follows:

Little power consumption electric control valve, comprise valve body, into and out of water channel, spool, three blocks of magnet steel and micro motor, wherein a magnet steel is installed on the spool top, it also is provided with a disk and a spline tip on valve body, disk is driven by micro-motor, in addition two blocks of magnet steel are installed on the disk, and when its position will guarantee that disk rotates, any magnet steel all had and the relative state of magnet steel on the spool; Two magnet steel polarity are opposite and at a distance of several angle, also be provided with on the disk with two magnet steel between the radian sector notch or the groove that equate, the spline tip that is fixed in the valve body top can be stretched in breach or the groove.

The utility model has the advantages that:

1. power consumption is little, drives moving of outer steel owing to adopt motor to rotate, and utilizes the suction of internal-external magnetic steel to scold active force to open and close spool, and conducting current, its required electric energy only get final product for rotating for micro motor, so power consumption is very little.

2. volume is little, and cost is low: because the displacement of its outer steel and qualification only need micro motor, disk and the spline tip to get final product, required parts are few, so volume is little, cost is low.

3. good airproof performance, do not have and leak: adopt internal-external magnetic steel to inhale to scold and open the spool form, make the driving mechanism outside spool and the valve body not need link, this has just guaranteed the sealing of valve body, can not produce dielectric leakage.

Below in conjunction with drawings and Examples the utility model is described further:

Fig. 1 is little power consumption mortor operated valve structural drawing;

Fig. 2 is the outer steel driver composition of little power consumption mortor operated valve.

Among the figure: 1. the inlet channel 2. valve bodies 3. sealing covers 4. micro motors 5. magnet steel 6. spline tips 7. magnet steel 8. disks 9. magnet steel 10. spools 11. water outlets 12. motor shafts

Embodiment:

As shown in Figure 1, this mortor operated valve comprises valve body 2, spool 10, turnover water channel 1,11, three magnet steel 5,7,9, disk 8 and stop pins 6.Valve body 2 bottoms one side is established inlet channel 1, one side and is set out water channel 11, with spool 10 their switchings of decision.A magnet steel 9 is inlayed at spool 10 tops, and sealing cover 3 is made with nonmagnetic substance in valve body 2 ends.Be provided with a disk 8 in the outer end of sealing cover 3, disk 8 is fixed in the rotating shaft 12 of micro motor 4.It is opposite respectively to be embedded with a magnet steel 5,7, two magnet steel polarity at a distance of 90 ° on the disk 8.The position of two magnet steel on disk should guarantee to rotate by disk, any magnet steel all have with spool on magnet steel 9 over against chance, with the suction that realizes internal-external magnetic steel, scold two states.As shown in Figure 2, disk 8 between two magnet steel is provided with 90 ° sector notch, make the spline tip 6 that is fixed in valve body 2 tops can stretch in the breach, the angular dimension of breach is consistent with the angular dimension between two magnet steel, like this, run into the spline tip 6 and stop when disk 8 rotates, the magnet steel of magnet steel this moment on the spool.Its working procedure is: when motor 4 adds the pulsewidth voltages that guarantee to rotate 90 degree, drive the disk 8 that is fixed on the motor shaft 12 and rotate, stop when running into the spline tip 6, the magnet steel 9 of the magnet steel 5 on this hour indicator or 7 on the spool 10.If its magnetic is identical, because the same sex effect of repelling each other, spool 10 is subjected to its thrust close port, blocks current.As backward rotation disk 8 again, make its another magnet steel 5 or 7 aim at spool magnet steel 9 because the magnet steel 5 on this disk 8 or 7 and disk on magnet steel 9 opposite sex, so it is also different in nature with the magnet steel on the spool, there is a natural attraction between the sexes and form, and spool 10 is subjected to suction to open valve port, conducting current.Like this, disk 8 rotates, and by the effect of magnetic push rod, becomes moving back and forth of spool 10.

Claims (1)

1. little power consumption mortor operated valve, comprise valve body (2), into and out of water channel (1,11), spool (10), three blocks of magnet steel (5,7,9) and micro motor (4), wherein a magnet steel (9) is installed on spool (10) top, it is characterized in that it also is provided with a disk (8) and a spline tip (6) on valve body (2), disk (8) is driven by micro-motor (12), two blocks of magnet steel (5,7) are installed on the disk (8) in addition, when its position will guarantee that disk (8) rotates, any magnet steel all had and the relative state of magnet steel on the spool; Two magnet steel (5,7) polarity is opposite and at a distance of several angle, also be provided with on the disk (8) with two magnet steel (5,7) between the radian sector notch or the groove that equate, the spline tip (6) that is fixed in the valve body top can be stretched in breach or the groove.

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