CN2362881Y - Electromagnetic iron for vavle of washing machine - Google Patents

Abstract

The utility model relates to an electric magnet for a valve of a washing machine, which is composed of a plastic top cap, an armature, a plastic guide sleeve, an upper and a lower yoke sleeves, an upper and a lower yoke plates, a coil, a spring, a stop block, a plastic bracket, and a control box. After a power supply is switched on, and after attraction is started, starting current can be automatically switched off; when the power supply is switched on, the current is kept to be automatically sent into an electromagnet coil; the armature is sucked and is in a maintaining state; a valve is opened; water can enter into the washing machine; a poweroff armature can reset, and when the valve is closed, the water can stop entering. The electric magnet for a valve of a washing machine has the advantages of electricity saving, noiselessness, low temperature rise, long-term energizing operation, and no burn of the coil.

Description

The washing machine valve control electromagnet

The utility model is a kind of novel washing machine valve control electromagnet, with the valve body fit applications on various automatic washing machines, finish the usefulness that the confession of washing machine is cut off the water automatically.

The problem of the washing machine valve control electromagnet existence of using now is: very big electromagnet buzz is arranged, and temperature rise is high especially, the use of should not switching on for a long time, coil easy burn-out, poor stability.

Purpose of the present invention: be intended to design that a kind of suction is big, reliable in action, little power consumption, temperature rise be low, the use of can switching on for a long time, the electromagnet that coil does not burn out.

The present invention is that following mode realizes, by plastic top cap, armature, plastics guide pin bushing, go up yoke plate, down yoke plate, go up the yoke cover, yoke cover, coil, spring, link stopper, plastic pallet and control box are formed down.The plastic top cap is contained on the garden post of armature one end, the garden post of the armature other end inserts in the spring, spring is contained in the plastics guide pin bushing, and contact with the boss of plastics guide pin bushing lower end endoporus, the plastics guide pin bushing is contained in the endoporus that yoke overlaps up and down, link stopper is equipped with in the lower end of following yoke cover, the link stopper end face contacts with plastics guide pin bushing end face, the cylindrical of yoke cover is equipped mutually with the endoporus of yoke plate up and down respectively again up and down, and the cylindrical of yoke plate is equipped with coil again up and down, and the lower end of coil places on the plastic pallet, control box places on plastic pallet and the last yoke plate, control element is housed in the control box, and it imports termination power, output wiring circle.Principle according to ZL95240010.3, when control box is connected power supply, the output of control box, output starting current and maintenance electric current, and the coil of feeding simultaneously in the same way of going the same way, in the adhesive of starting current effect lower armature, and starting current moment cut off automatically, keep electric current that armature is held maintenance, the valve open water inlet.Spring is compressed in the time of the armature adhesive, works as power cut-off, and armature resets under the effect of spring, and the valve closing water inlet stops.

Owing to adopt such scheme, to compare with original product, starting suction has improved 55%, move more reliably, keeps the small economize on electricity of electric current more than 50%, and temperature rise reduces half, the use of can switching on for a long time, coil does not burn out, and has particularly thoroughly eliminated drone the sound of disliking.

Describe in detail below in conjunction with accompanying drawing:

Fig. 1 is a washing machine valve control electromagnet structural representation.

Fig. 2 is washing machine valve control electromagnet control circuit figure.

Among the figure: 1. plastic top cap, 2. armature, 3. the plastics guide pin bushing is 4. gone up yoke plate, 5. goes up the yoke cover, and 6. coil 7. descends the yoke cover, 8. spring, 9. link stopper 10. descends yoke plate, 11. plastic pallets, 12. control boxes.

Plastic top cap (1), be contained on the garden post of armature (2) one ends, the cylinder of the other end of armature (2) inserts in the spring (8), spring (8) installs in the plastics guide pin bushing (3), and contact with the endoporus boss of plastics guide pin bushing (3), plastics guide pin bushing (3) is contained in the hole of yoke cover (5) and following yoke cover (7), the lower end endoporus of following yoke cover (7) is equipped with link stopper (9), link stopper (9) contacts with plastics guide pin bushing (3) lower surface, last yoke cover (5) and following yoke cover (7) are contained in respectively in the hole of yoke plate (4) and following yoke plate (10), load onto coil (6) up and down on the cylindrical of yoke plate, the lower end of coil (6) places on the plastic pallet (11), control box (12) is contained in the middle of yoke plate (4) and the plastic pallet (11), the input termination power of control box (12), output wiring circle (6).

The control circuit of control box is: by diode V ₁--V ₄Form rectifier bridge, it imports termination power.Capacitor C ₁And resistance R ₁Back in parallel is connected in series with coil (6), is connected on the output of rectifier bridge then, rectification bridge output end+extremely must join with a termination of coil (6).Work as power connection, the DC voltage of rectifier bridge output is added to coil (6) and C ₁, R ₁On, C ₁Charging, line chart (6) flows through electric current makes armature (2) adhesive, because C ₁Last current potential increases gradually, and the electric current that passes through on coil (6) is transferred to R gradually ₁On, work as C ₁Charging finishes, and coil (6) is gone up the electric current that passes through and all passed through R ₁So armature (2) can continue to keep, the valve open water inlet.Stream diode V continues ₅Be attempted by the two ends of coil (6).When the power supply disconnection, armature (2) resets armature (2) under the effect of spring (8), and the valve closing water inlet stops.

Claims (3)

1, washing machine valve control electromagnet, it is characterized in that: the lower end endoporus at following yoke cover 7 embeds link stopper 9, the lower surface of link stopper 9 contacts with the lower surface of the plastics guide pin bushing 3 that is contained in yoke cover 5 and following yoke cover 7, armature 2 adhesives compression is contained in the spring 8 in plastics guide pin bushing 3 endoporus, and the lower surface of armature 2 contacts with the end face of link stopper 9, last yoke cover 5 and following yoke cover 7 are contained in the hole of yoke plate 4 and following yoke plate 10, its cylindrical coil 6 of packing into, coil 6 leading-out terminals and control box 12 outputs join, and control box 12 is by diode V ₁-V ₄Form rectifier bridge, it imports termination power, and output is connected on by coil 6, capacitor C ₁, resistance R ₁The load two ends of forming, stream diode V continues ₅Be attempted by two ends of coil 6,

2, according to claim 1, described washing machine valve control electromagnet is characterized in that: capacitor C ₁, resistance R ₁Connect with coil 6 in back in parallel,

3, according to claim 1, described washing machine valve control electromagnet is characterized in that: diode V ₁-V ₄Rectification bridge output end+end joins with a termination of the lead-out wire of coil 6.

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