CN2445153Y

CN2445153Y - Guide pulse electromagnetic water valve

Info

Publication number: CN2445153Y
Application number: CN 00240604
Authority: CN
Inventors: 洪潜卫
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-10-12
Filing date: 2000-10-12
Publication date: 2001-08-29
Anticipated expiration: 2010-10-12

Abstract

The utility model relates to a guide pulse electromagnetic water valve. A columnar moving iron core arranged in a tubular smooth cavity is a valve rod of the utility model, and an electromagnetic coil is arranged on the outside wall of the smooth cavity; a piece of yoke iron is positioned in the middle of the smooth cavity, and permanent-magnetic rings with two opposite poles are respectively positioned at both ends of the smooth cavity. The top of the smooth cavity is sealed and is the top end of an upper cavity chamber D, and the bottom end of the smooth cavity is sealed by a guide valve seat and a main valve film and forms a lower cavity chamber C. The utility model is characterized in that a media path is arranged in the axial direction on the columnar moving iron core to cause the upper cavity chamber D and the lower cavity chamber C to be communicated. The utility model has the advantages of low power consumption, small size and reliable work.

Description

Leading type pulse electromagnetic water valve

The utility model relates to a kind of electromagnetism water valve.More particularly, be a kind of low power consumption pulse electromagnetic water valve.

Low power consumption pulse electromagnetic water valve generally all is the leading type structure, is made of electromagnetic coil, yoke, moving iron core, the sliding chamber of moving core, guide's spool, guide's valve seat, main valve film and main valve seat.Before this, in the patent No. was 002277603 utility model patent, applicant had proposed a kind of " magnetic coupling bistable electro-magnet ", sets up two permanent-magnetic clamps at the yoke upper and lower of general solenoid valve, to realize the bistable state self-sustaining, further reduce power consumption, reduce volume.In the basic structure of pilot valve, the gap between moving iron core and the sliding chamber sidewall all should be narrow as far as possible, so that reduce magnetic-coupled magnetic resistance between yoke and the iron core, improves electromagnetic efficiency.But, reduce the gap, must increase the resistance that moving iron core two ends medium exchanges mutually.This resistance allows for the general solenoid valve of electric hold mode, because under sufficiently long current"on"time and sufficient power effect, moving iron core finally can change to new state.But for the impulse electromagnetic valve of magnetic maintenance work, this resistance but becomes the insecure principal element of this solenoid valve work.It makes iron core not catch up with the beat of electrical pulse sometimes, and valve is not opened or closed incessantly cisco unity malfunction.Usually the way that solves is to increase pulse power or strengthen the gap of moving between core and the sliding chamber, and its latter is a cost to increase pulse power also.

The purpose of this utility model is to avoid above-mentioned deficiency of the prior art, and the leading type pulse electromagnetic water valve of a kind of energy reliably working in low power consumpting state is provided.

The purpose of this utility model is achieved through the following technical solutions:

The utility model to be being placed on the moving iron core of column in the sliding chamber of tubulose as valve rod, and fixedly connected guide's spool in its bottom on the outer side wall in the sliding chamber of tubulose, has electromagnetic coil and yoke to be positioned at its middle part, two opposite polarity permanent-magnetic clamps lay respectively at two ends; The sliding top of chamber sealing of described tubulose, as the top end face of the D of upper chamber, the bottom in the sliding chamber of tubulose is by guide's valve seat and main valve membrane closure, form lower chambers C, it is characterized in that being axially arranged with medium channel along it on the moving iron core of described column, this medium channel connects D of upper chamber and lower chambers C.

Compared with the prior art, the utlity model has following advantage:

1, because the axially setting of medium channel on the moving iron core of the utility model, when the upper and lower motion of moving iron core, medium in D of upper chamber and the lower chambers C can freely discharge or cover, significantly reduced medium into and out of additional drag, guaranteed the reliably working of valve.

2, the utility model,, has reduced the spacing between iron core and the yoke, thereby has reduced magnetic-coupled magnetic resistance so it is tightr to allow moving iron core and the sliding chamber of its tubulose to cooperate as the medium main passage with axial medium channel on its moving iron core, improves electromagnetic efficiency.

3, the axially setting of medium channel on the moving iron core of the utility model has reduced the iron core deadweight, for the vertical water valve of placing of valve pocket, more helps reducing the required power of valve opening.

4, the utility model is low in energy consumption, volume is little, is particularly suitable for battery powered induction water valve.

By the following examples, in conjunction with the accompanying drawings the utility model is further described.

Embodiment:

Referring to accompanying drawing, move iron core 2 as valve rod with the column that is placed in the sliding chamber 1 of tubulose, fixedly connected guide's spool 3 in its bottom on the outer side wall in the sliding chamber 1 of tubulose, has electromagnetic coil 4 and yoke 5 to be positioned at its middle part, two opposite polarity permanent-magnetic clamps 6,7 lay respectively at two ends.The sliding chamber of tubulose 1 top seal, as the top end face of the D of upper chamber, the bottom in the sliding chamber 1 of tubulose forms lower chambers C by guide's

valve seat

9 and 10 sealings of main valve film.

As shown in the figure, on the moving iron core 2 of column, be axially arranged with medium channel 8 along it in the present embodiment, this medium channel 8 connects D of upper chamber and lower chambers C.

In concrete the enforcement, medium channel 8 can be the interior bone that is opened in the moving iron core 2.

Close closed procedure: moving iron core 2 falls, and the medium channel 8 of the medium among the lower chambers C in moving iron core 2 replenishes in the D of upper chamber, and balance keep-ups pressure.When moving iron core 2 fell, at first with the port closing of guide's valve seat 9, at this moment, because the inlet of guide's valve seat 9 and main valve inlet A are normal opens, the pressure medium in guide's valve pocket pressed down main valve film 10 to guide's spool 3, and main valve outlet B is closed with the passage of inlet A.

Opening process: moving iron core 2 rises, and the medium among the D of upper chamber is discharged in the medium channel 8 downward cavity C in the moving iron core 2, and balance keep-ups pressure.Mention when moving iron core 2 drives guide's spool 3, the outlet of guide's valve seat 9 is at first opened, and the pressure medium in guide's valve pocket reduces thereupon.Since the pressure medium among the main valve inlet A, 10 arches of main valve film, main valve outlet B is communicated with main valve inlet A, and valve is opened.

Claims

1, a kind of leading type pulse electromagnetic water valve, move iron core (2) as valve rod with the column that is placed in the sliding chamber of tubulose (1), fixedly connected guide's spool (3) in its bottom, on the outer side wall in the sliding chamber of tubulose (1), have electromagnetic coil (4) and yoke (5) to be positioned at its middle part, two opposite polarity permanent-magnetic clamps (6,7) lay respectively at two ends; The sliding chamber (1) of described tubulose top seal, top end face as the D of upper chamber, the bottom in the sliding chamber of tubulose (1) is by guide's valve seat (9) and main valve film (10) sealing, form lower chambers C, it is characterized in that on the moving iron core (2) of described column, be axially arranged with medium channel (8) along it, this medium channel (8) connects D of upper chamber and lower chambers C.

2, leading type pulse electromagnetic water valve according to claim 1 is characterized in that described medium channel (8) is for being opened in the interior bone in the moving iron core (2).