CN102135205A - Flow sensing solenoid valve - Google Patents
Flow sensing solenoid valve Download PDFInfo
- Publication number
- CN102135205A CN102135205A CN 201110030453 CN201110030453A CN102135205A CN 102135205 A CN102135205 A CN 102135205A CN 201110030453 CN201110030453 CN 201110030453 CN 201110030453 A CN201110030453 A CN 201110030453A CN 102135205 A CN102135205 A CN 102135205A
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- Prior art keywords
- flow
- inductor
- solenoid valve
- runner
- axle
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Abstract
The invention relates to a flow sensing solenoid valve. The flow sensing solenoid valve comprises a valve body provided with a valve cavity, a coil, an inflow passage into which a medium can flow, at least one outflow passage out of which the medium flows, and a central processing unit for controlling the outflow passage to be opened and closed; a flow sensor is arranged in the inflow passage or the outflow passage; the flow sensor comprises a Hall sensor, and a flow sensor jacket; the flow sensor jacket is provided with a through inner cavity; a rotating wheel, a shaft, a rotor cap, a shaft seat, and a magnet are arranged in the flow sensor jacket; two ends of the shaft are inserted into the shaft seat and the rotating wheel respectively; the other end of the rotating wheel relative to one end of the rotating wheel into which the shaft is inserted is positioned in the rotor cap; the magnet is arranged on the rotating wheel; and the Hall sensor is connected with the central processing unit. Due to the adoption of the technical scheme, the invention provides the flow sensing solenoid valve which is small in potential difference of water level control.
Description
Technical field
The present invention relates to a kind of solenoid valve, particularly a kind of flow sensing solenoid valve.
Background technique
At present, the general level sensor that adopts of water level control on the existing washing machine, level sensor is equivalent to pressure switch, after setting what a force value, extraneous tap water is through solenoid valve water filling in washing machine, when hydraulic pressure in the washing machine reaches the force value of setting, automatically outage, close the solenoid valve shuts water source, level sensor is divided into two kinds of electronic type and switch types, all to be the air pressure that produced when rising by water level be delivered to sensor by pipeline changes resistance or internal switch is connected and realized outage, existing solenoid valve generally comprises the valve body that is provided with valve pocket, coil, be used for flowing into the flow channel of valve pocket for medium, at least one is used for flowing out for medium the flow pass of valve pocket, after level sensor sent power-off signal, the control coil energising was closed flow pass.But this water level control potential difference is big, generally can only be controlled at ± 20mm.
Summary of the invention
Purpose of the present invention: in order to overcome the defective of prior art, the present invention comes control flow rate by in flow channel or flow pass flow inductor being set, thereby provides a kind of water level control potential difference little flow sensing solenoid valve.
Technological scheme of the present invention: a kind of flow sensing solenoid valve, include the valve body that is provided with valve pocket, coil, be used for flowing into the flow channel of valve pocket for medium, at least one is used for flowing out for medium the flow pass of valve pocket, the flow sensing solenoid valve also includes and is used to control the flow pass conducting, the central processing unit (CPU) of closing, be provided with flow inductor in described flow channel or the flow pass, described flow channel or the flow pass that is provided with flow inductor is provided with the cavity of placing for central processing unit (CPU), described flow inductor includes Hall transducer, the flow inductor overcoat, the flow inductor overcoat is complementary with the flow channel or the flow pass inwall that are provided with flow inductor, described flow inductor is arranged with the inner chamber of perforation outward, be provided with runner in the flow inductor overcoat, axle, the rotor cap, axle bed, magnet, insert respectively in axle bed and the runner at described axle two ends, described runner is positioned at the rotor cap with respect to the other end that axle inserts an end, described axle bed, rotor cap outer wall and flow inductor outer casing inner wall are complementary, described magnet is arranged on the described runner, and described Hall transducer is connected with central processing unit (CPU).
Wherein said Hall transducer is a kind of magnetic field sensor that makes according to Hall effect, Hall effect is a kind of of magnetoelectric effect, when electric current passes through conductor perpendicular to external magnetic field, between two end faces perpendicular to magnetic field and current direction of conductor, potential difference can occur and be Hall effect.Record the number of turns of runner rotation through magnet by Hall transducer in the described flow inductor, and then record the flow of medium, when reaching the flow of setting, by the Hall transducer output signal, through the switching of central processing unit (CPU) control coil, realization to the conducting of described flow pass, close, the solenoid valve water level control potential difference of this structure is little.
Further improvement of the present invention: the medium of described flow inductor overcoat flows into a side end face and is provided with the throttle that rubber is made, described throttle peripheral hardware is useful on the orifice sleeve of fixed restriction circle, described throttle is provided with the passage of crossing for MEDIA FLOW, also is provided with the through hole of crossing for MEDIA FLOW on the described orifice sleeve.
Adopt above-mentioned further improvement, rubber has certain elasticity and throttle is provided with horn-like passage, can play throttling action well, has further improved the accuracy of water level control potential difference.
Further improvement more of the present invention: the medium of described orifice sleeve flows into a side end face and is provided with the guard that is used for impurity screening, and described guard peripheral hardware is useful on the fixedly filter cap of guard, and described filter cap is provided with the groove of crossing for MEDIA FLOW.
Adopt above-mentioned further improvement again, filter screen is set can stops the influence of introduced contaminants to flow inductor well, avoid impurity to be trapped in the flow inductor, the dependable flow inductor can move well.
Further improvement more of the present invention: described runner is provided with groove with respect to the other end that axle inserts an end, and described magnet is positioned at described groove.
Adopt and above-mentionedly further improve again, described magnet is positioned at described runner groove, again through described rotor cap fixed magnet well, guarantees the stability of magnet.
Description of drawings
Fig. 1 is the structural representation of the specific embodiment of the invention;
Fig. 2 is the worm's eye view of the specific embodiment of the invention;
Fig. 3 is the internal structure schematic representation of the specific embodiment of the invention.
Embodiment
As Figure 1-3, a kind of flow sensing solenoid valve, include the valve body 1 that is provided with valve pocket 11, coil 2, be used for flowing into the flow channel 3 of valve pocket 11 for medium, at least one is used for flowing out for medium the flow pass 4 of valve pocket 11, the flow sensing solenoid valve also includes and is used to control flow pass 4 conductings, the central processing unit (CPU) 5 of closing, be provided with flow inductor 6 in described flow channel 3 or the flow pass 4, described flow channel 3 or the flow pass 4 that is provided with flow inductor 6 is provided with the cavity of placing for central processing unit (CPU) 57, described flow inductor 6 includes Hall transducer 61, flow inductor overcoat 62, flow inductor overcoat 62 is complementary with the flow channel 3 or flow pass 4 inwalls that are provided with flow inductor 6, described flow inductor overcoat 62 is provided with the inner chamber 621 of perforation, be provided with runner 63 in the flow inductor overcoat 62, axle 64, rotor cap 65, axle bed 66, magnet 67, insert respectively in axle bed 66 and the runner 63 at described axle 64 two ends, described runner 63 is positioned at rotor cap 65 with respect to the other end that axle 64 inserts an end, described axle bed 66, rotor cap 65 outer walls and flow inductor overcoat 62 inwalls are complementary, described magnet 67 is arranged on the described runner 63, and described Hall transducer 61 is connected with central processing unit (CPU) 5.In the specific embodiment of the invention, described flow inductor 6 is arranged in the described flow channel 3, described flow pass 4 is provided with 3, described coil 2 is 3, central processing unit (CPU) 5 stretches out 3 leads, and control coil 2 is logical respectively, outage, described flow inductor overcoat 62 and flow channel 3 that is provided with flow inductor 6 or flow pass 4 inwalls are complementary identical and can fit well for flow inductor overcoat 62 shapes and the flow channel 3 that is provided with flow inductor 6 or flow pass 4 inner wall shape, described axle bed 66, rotor cap 65 outer walls and flow inductor overcoat 62 inwalls are complementary and are axle bed 66, rotor cap 65 outer walls are identical with flow inductor overcoat 62 inner wall shape, also can fit well, can not become flexible.Described central processing unit (CPU) 5 has the function of calculation process, output control, such as single-chip microcomputer, computer etc.
The medium of described flow inductor overcoat 62 flows into a side end face and is provided with the throttle 68 that rubber is made, described throttle 68 peripheral hardwares are useful on the orifice sleeve 69 of fixed restriction circle 68, described throttle 68 is provided with the passage of crossing for MEDIA FLOW 681, in the specific embodiment of the invention, horn-like and the big opening end 6811 of 681 one-tenth in described passage is positioned at runner 63 1 sides, also is provided with the through hole of crossing for MEDIA FLOW 691 on the described orifice sleeve 69.Described throttle 68 is cylindrical, and described orifice sleeve 69 also is cylindrical, and orifice sleeve 69 is provided with the groove of placing for throttle 68 692.Through hole 691 is arranged on groove 692 bottoms.
The medium of described orifice sleeve 69 flows into a side end face and is provided with the guard 610 that is used for impurity screening, and described guard 610 peripheral hardwares are useful on the fixedly filter cap 611 of guard 610, and described filter cap 611 is provided with the groove of crossing for MEDIA FLOW.
In the specific embodiment of the invention, described runner 63 is provided with groove 631 with respect to the other end that axle 64 inserts an end, and described magnet 67 is positioned at described groove.The mode of this fixed magnet 67, simple in structure, easy for installation.
Claims (4)
1. flow sensing solenoid valve, include the valve body that is provided with valve pocket, coil, be used for flowing into the flow channel of valve pocket for medium, at least one is used for flowing out for medium the flow pass of valve pocket, it is characterized in that: the flow sensing solenoid valve also includes and is used to control the flow pass conducting, the central processing unit (CPU) of closing, be provided with flow inductor in described flow channel or the flow pass, described flow channel or the flow pass that is provided with flow inductor is provided with the cavity of placing for central processing unit (CPU), described flow inductor includes Hall transducer, the flow inductor overcoat, the flow inductor overcoat is complementary with the flow channel or the flow pass inwall that are provided with flow inductor, described flow inductor is arranged with the inner chamber of perforation outward, be provided with runner in the flow inductor overcoat, axle, the rotor cap, axle bed, magnet, insert respectively in axle bed and the runner at described axle two ends, described runner is positioned at the rotor cap with respect to the other end that axle inserts an end, described axle bed, rotor cap outer wall and flow inductor outer casing inner wall are complementary, described magnet is arranged on the described runner, and described Hall transducer is connected with central processing unit (CPU).
2. flow sensing solenoid valve according to claim 1, it is characterized in that: the medium of described flow inductor overcoat flows into a side end face and is provided with the throttle that rubber is made, described throttle peripheral hardware is useful on the orifice sleeve of fixed restriction circle, described throttle is provided with the passage of crossing for MEDIA FLOW, also is provided with the through hole of crossing for MEDIA FLOW on the described orifice sleeve.
3. flow sensing solenoid valve according to claim 2, it is characterized in that: the medium of described orifice sleeve flows into a side end face and is provided with the guard that is used for impurity screening, described guard peripheral hardware is useful on the fixedly filter cap of guard, and described filter cap is provided with the groove of crossing for MEDIA FLOW.
4. according to claim 1 or 2 or 3 described flow sensing solenoid valves, it is characterized in that: described runner is provided with groove with respect to the other end that axle inserts an end, and described magnet is positioned at described groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110030453 CN102135205A (en) | 2011-01-28 | 2011-01-28 | Flow sensing solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110030453 CN102135205A (en) | 2011-01-28 | 2011-01-28 | Flow sensing solenoid valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102135205A true CN102135205A (en) | 2011-07-27 |
Family
ID=44295076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110030453 Pending CN102135205A (en) | 2011-01-28 | 2011-01-28 | Flow sensing solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102135205A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105088693A (en) * | 2014-04-22 | 2015-11-25 | 无锡小天鹅股份有限公司 | Washing machine and water inlet valve thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000055706A (en) * | 1998-08-03 | 2000-02-25 | Techno Excel Co Ltd | Fluid detection device |
| CN201258985Y (en) * | 2008-08-28 | 2009-06-17 | 杨迎龙 | Water feeding electromagnetic valve |
| JP2009229099A (en) * | 2008-03-19 | 2009-10-08 | Rinnai Corp | Flowmeter |
| JP2010145152A (en) * | 2008-12-17 | 2010-07-01 | Miura Co Ltd | Impeller type flowmeter |
| CN201522300U (en) * | 2009-07-23 | 2010-07-07 | 艾礼富电子(深圳)有限公司 | Water flow inductor |
-
2011
- 2011-01-28 CN CN 201110030453 patent/CN102135205A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000055706A (en) * | 1998-08-03 | 2000-02-25 | Techno Excel Co Ltd | Fluid detection device |
| JP2009229099A (en) * | 2008-03-19 | 2009-10-08 | Rinnai Corp | Flowmeter |
| CN201258985Y (en) * | 2008-08-28 | 2009-06-17 | 杨迎龙 | Water feeding electromagnetic valve |
| JP2010145152A (en) * | 2008-12-17 | 2010-07-01 | Miura Co Ltd | Impeller type flowmeter |
| CN201522300U (en) * | 2009-07-23 | 2010-07-07 | 艾礼富电子(深圳)有限公司 | Water flow inductor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105088693A (en) * | 2014-04-22 | 2015-11-25 | 无锡小天鹅股份有限公司 | Washing machine and water inlet valve thereof |
| CN105088693B (en) * | 2014-04-22 | 2019-02-05 | 无锡小天鹅股份有限公司 | Washing machine and its inlet valve |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110727 |