CN2437916Y - Micropower electrically controlled valve - Google Patents
Micropower electrically controlled valve Download PDFInfo
- Publication number
- CN2437916Y CN2437916Y CN 00223980 CN00223980U CN2437916Y CN 2437916 Y CN2437916 Y CN 2437916Y CN 00223980 CN00223980 CN 00223980 CN 00223980 U CN00223980 U CN 00223980U CN 2437916 Y CN2437916 Y CN 2437916Y
- Authority
- CN
- China
- Prior art keywords
- valve
- commutator
- valve core
- sealing cover
- controlled valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Magnetically Actuated Valves (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The utility model relates to a micropower electrically controlled valve, comprising a valve body, a sealing cover, a micro motor retarding mechanism, a water inlet passage and a water outlet passage. The utility model is characterized in that a lug boss hole is arranged in the sealing cover, a big valve core is arranged in a big hole, and a magnetic steel small valve core with an upward pole face is arranged in a small hole; the part corresponding to the upper part of the small valve core is provided with a commutator which is connected with the micro motor through the retarding mechanism. The electrical controlled valve has the advantages of good reliability, high stability, long service life, easy fabrication and low cost.
Description
The utility model belongs to liquid switch valve technology, is specifically related to a kind of micropower electrically-controlled valve.
Low-power electro-magnetic valve mainly comprises valve body, micro motor, reducing gear, interior outer magnet and control switch in the prior art.But the defective that still has complex structure or poor reliability at present, comprise valve body, turnover water channel, spool, three blocks of magnet steel and micro motor as Chinese patent 98228644.9 disclosed " little power consumption mortor operated valve ", on valve body, be provided with the disk and the spline tip, disk is driven by micro-motor, disk is provided with the sector notch of 90 degree, the spline tip that is fixed in the valve body top is stretched in the breach, and disk rotates and to contact the suction that makes magnet steel with the spline tip, scolds closing of application control valve core.This spline tip switch uses a period of time very easily to lose efficacy, and reduces the reliability of micropower electrically-controlled valve.
The purpose of this utility model is to overcome states deficiency on the prior art, a kind of improvement sensitive switch is provided, and reaches the purpose that improves micropower electrically-controlled valve reliability and stability.
Realize above-mentioned purpose, the utility model adopts following proposal to realize:
A kind of micropower electrically-controlled valve comprises valve body, sealing cover, micro motor reducing gear and turnover water channel.It is characterized in that: be provided with boss hole in the sealing cover, be provided with big valve core in the macropore, be provided with the magnet steel small valve core that a pole-face makes progress in the aperture, corresponding part, small valve core top is provided with commutator, is connected with micro motor by reducing gear.The profile of commutator is the cam machine, wherein be provided with two opposite polarity magnet steel respectively in the face of sealing cover, commutator is arranged on the shift fork of symmetry, a rotating center is arranged on the axis of symmetry of shift fork, inboard, shift fork end is provided with projection and contacts with commutator, and the outside has near protruding and sensitive switch to contact.Sensitive switch is located on the fine motion motor cabinet.Big valve core is made up of elastomer diaphragm, and there is spilled water hole the centre, is communicated with the valve body water outlet, and there is a water inlet at the edge, is communicated with the valve inleting water road.
Micropower electrically-controlled valve of the present utility model adopts the commutator of special construction, improves reliability, the stability of sensitive switch greatly, prolong the working life of micropower electrically-controlled valve, and commutator structure is simple, makes easily, and cost is lower.Sealing cover is reasonable in design simultaneously, isolates motor transmission mechanism effectively and does not contact with liquid, guarantees its normal working environment.
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the utility model theory diagram.
Fig. 2 is a micropower electrically-controlled valve structural drawing.
Fig. 3 is commutator structure figure.
See Fig. 2, Fig. 3, the utility model comprises valve body 11, sealing cover 10, micro motor 1, reducing gear 3 and inlet channel, water outlet.Sealing cover 10 is isolated into two-part with valve body 11, and the assurance driving mechanism does not contact with liquid and works under dry environment.Sealing cover is that nonmagnetic substance is made.Two step holes are arranged in the sealing cover, wherein be provided with the magnet steel small valve core 8 that a pole-face makes progress in the aperture, but macropore is provided with the big valve core 9 of being made of upper and lower displacement the rubber glue film, there is a spilled water hole to be communicated with diaphragm epicoele and valve outlet in the middle of the big valve core 9, there is a water inlet 0 at the edge, is communicated with diaphragm epicoele and valve body import.Corresponding part, small valve core 8 top is provided with commutator 4, is connected with micro motor 1 by reduction gearing mechanism 3.The profile of commutator 4 is a cam, it has a boss, wherein be provided with two opposite polarity magnet steel 5 respectively in the face of sealing cover 10, commutator 4 is arranged on the shift fork 6 of symmetry, a rotating center is arranged on the axis of symmetry of shift fork 6, inboard, shift fork 6 end is provided with projection and contacts with commutator 4, and the outside also has projection to contact with near sensitive switch 7.Sensitive switch 7 is located on the support.
Referring to Fig. 1, to micro motor 1 power supply, the control driving mechanism rotates the utility model by control circuit, drives the commutator swing, makes the spool action reach the switching of control electrically-controlled valve.Valve opening signal is sent by control circuit, and when needs were driven valve, micro motor was switched on power supply, order about the commutator rotation by driving mechanism, switch the polarity of magnet steel, when forwarding out the valve state to, move on the small valve core, the guiding main valve is opened, and the commutator projection promotes the shift fork swing simultaneously, presses a sensitive switch, this sensitive switch just sends " driving valve finishes " signal to control circuit, control circuit is interruption of power supply just, and the micro motor stall keeps opening the valve state.
Specifically open the valve process: when small valve core is subjected to the attraction of commutator magnet steel and when moving up, original blocked spilled water hole just was opened, the step-down of diaphragm epicoele by spilled water hole, thus the following cavity pressure of diaphragm outer ring is higher than the diaphragm epicoele.This pressure reduction is given thrust that makes progress of diaphragm, causes on the big valve core of originally sealing valve outlet and moves, and valve is opened.Simultaneously, the commutator projection promotes the shift fork swing, presses a sensitive switch 7, sends " driving valve finishes " signal to control circuit, and control circuit is interruption of power supply just, and micro motor stops, and opens the valve process and finishes.
Close the valve process: with opening the valve similar process.Different is that small valve core moved down, and stops up the spilled water hole of big valve core after magnet steel polarity was switched in the commutator rotation, thereby the valve body inlet pressure passes to the diaphragm epicoele by the diaphragm water inlet, in the diaphragm centre area, forms a downward thrust, order about diaphragm and move down, and the outlet of closed valve.So valve closing; In valve closing, sensitive switch sends " closing valve finishes " signal to control circuit under the pressing of shift fork.Control circuit is interruption of power supply just, the micro motor stall.Closing the valve process finishes.And maintenance close valve state.
Claims (3)
1. micropower electrically-controlled valve, comprise that valve body, sealing cover, micro motor reducing gear reach into and out of water channel, it is characterized in that: be provided with boss hole in the sealing cover, be provided with big valve core in the macropore, be provided with the magnet steel small valve core that a pole-face makes progress in the aperture, corresponding part, small valve core top is provided with commutator, is connected with micro motor by reducing gear.
2. electrically-controlled valve as claimed in claim 1, it is characterized in that: the profile of described commutator is a cam-like, wherein be provided with two opposite polarity magnet steel respectively in the face of the sealing cover top, commutator is arranged on the shift fork of symmetry, a rotating center is arranged on the axis of symmetry of shift fork, inboard, shift fork end is provided with projection and contacts with commutator, and there is near the sensitive switch contacting point being raised in the outside, and sensitive switch is located on the fine motion motor cabinet.
3. electrically-controlled valve as claimed in claim 1, it is characterized in that: big valve core is made up of elastomer diaphragm, and the centre has spilled water hole to be communicated with the valve body water outlet, and the edge has a water inlet to be communicated with the valve inleting water road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00223980 CN2437916Y (en) | 2000-08-15 | 2000-08-15 | Micropower electrically controlled valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00223980 CN2437916Y (en) | 2000-08-15 | 2000-08-15 | Micropower electrically controlled valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2437916Y true CN2437916Y (en) | 2001-07-04 |
Family
ID=33588442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00223980 Expired - Lifetime CN2437916Y (en) | 2000-08-15 | 2000-08-15 | Micropower electrically controlled valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2437916Y (en) |
-
2000
- 2000-08-15 CN CN 00223980 patent/CN2437916Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20010704 |