CN2130979Y

CN2130979Y - Small-flow normal-pressure electromagnetic valve

Info

Publication number: CN2130979Y
Application number: CN 92229806
Authority: CN
Inventors: 崔贵桐; 张希领; 韩建滨
Original assignee: YUANYANG ELECTRICAL APPLIANCES CO SHENZHEN
Current assignee: YUANYANG ELECTRICAL APPLIANCES CO SHENZHEN
Priority date: 1992-08-03
Filing date: 1992-08-03
Publication date: 1993-04-28
Anticipated expiration: 2002-08-03

Abstract

The utility model provides an electromagnetic valve which is small in flow rate and works under normal pressure, the flow rate is not greater than 250 ml/minute, and the pressure is not greater than 2 NPa. In the utility model, under a 12V direct current, the rotors of the center of two semicircular magnetic shoes can rotate by 90 DEG next to the magnetic shoes and a spacing mechanism, and when the power supply is cut off, the rotors rotate reversely and return accurately to the original position; the other ends of the rotors are embedded into a valve body, when the rotors are at the original position, the valve is in an 'on' position, an oil path is opened, and when the rotors rotate by 90 DEG, the oil path is closed. The electromagnetic valve is arranged in a circular body and a decoding controller is arranged, so the utility model can be controlled by password signals.

Description

Small-flow normal-pressure electromagnetic valve

The utility model relates to a kind of small flow normal-pressure solenoid valve, is specially adapted to the solenoid valve of automobile oil circuit control.

Normally directly control of the commutation of fluid or stop valve is at present promptly adopted manual.The control of electric consumer or code solenoid valve arranged usually, but solenoid valve flow of the prior art is minimum to be 251/min, working pressure is minimum to be 16Mpa, so can't work under small flow normal pressure situation, can not adapt to as small flow normal pressure working conditions such as automobile oil circuit controls.

The purpose of this utility model is to provide a kind of small flow normal pressure work, compact structure, the electric and incorporated solenoid valve of mechanism.

The utility model is positioned over a rotor among two interior semicircle permanent magnets of circular body, and one of mandrel that is connected one with rotor is held and opened a transverse holes, and transverse holes is identical with oil circuit, and is bumped in the valve body.Make the rotor half-twist when magnetic core is through a DC, the transverse holes of rotor makes oil circuit be in channel status.When the direct current commutation, the rotor counter-rotating, just half-twist can and close oil circuit.The circuit of control rotor is placed in the valve body.

Fig. 1 is a structural drawing of the present utility model, and Fig. 2 is the A-A Visual figure of Fig. 1,

Fig. 3 is the utility model solenoid valve electrical control figure.

As shown in Figure 1, symmetry is fixed in the semicircle permanent magnet 1 in the circular body 3, and with rotor 3 magnetic core 7 of packing into, magnetic core 7 is to locate with fixed block 6.Rotor 3 is being loaded onto mandrel 12 with it with one heart, and mandrel 12 1 ends are processed with a transverse holes.In the time of in mandrel 12 is packed valve body 11 into, the cross-drilled hole of mandrel 12 communicates with oil circuit.Rotor 3 is to use the 0.31mm enameled cable, and δ=0.5mm10 plate is around 352 circles, resistance 9.8 Ω, safe current 0.22A, immediate current 1A.After the rotor energising, half-twist under the action of a magnetic field, logical more anti-phase electricity, the direction that the rotor rotation is opposite is got back to original position.In logical position and 90 ° of positions, by billiard mechanism 13 and B ₃Guarantee the location, cut off the electricity supply automatically behind the location, avoid long-term power consumption.Housing 3 and valve body B ₂Screw is fixing with one heart.Electric control system such as Fig. 2, code signal is through R ₁₅Current limliting is at BG ₅Example is amplified mutually, again through R ₁₈Step-down input IC ₃Decipher.After the decoding relatively, correct when signal, signal is through R ₂₀Current limliting, conducting BG ₆, BG ₇, trigger SCR ₂Controllable silicon adhesive electromagnet makes oil circuit logical.During commutation, half-twist is closed oil circuit.At this moment C ₃Charging triggers controllable silicon SCR ₃Conducting, C ₁Discharge realizes anti-phase reverse.

The utility model compared with prior art has the work of low discharge normal pressure, the advantages such as features simple structure, compactness.

Claims

1, a kind of small flow normal-pressure solenoid valve is made of valve body and valve stamen, it is characterized in that the other end of mandrel has a transverse holes among the rotor that has the stamen axle places two semicircle permanent magnets in the circular body, and its transverse holes communicates with oil circuit; The switching electric control circuit of rotor is placed within the valve body.

2, solenoid valve according to claim 1 is characterized in that two semicircle permanent magnets form the symmetrical circular structure.

3, solenoid valve according to claim 1 is characterized in that rotor is to make with 0.31mm enameled cable 352 circles, and the rotor sense of rotation has a location mechanism, and positioning means connects power supply.

4, solenoid valve according to claim 1, it is characterized in that in the control circuit code signal through damp decoding circuit relatively after, trigger controllable silicon, electromagnet drives rotor and connects oil circuit.