CN202793478U - Water flow sensor - Google Patents
Water flow sensor Download PDFInfo
- Publication number
- CN202793478U CN202793478U CN 201220527077 CN201220527077U CN202793478U CN 202793478 U CN202793478 U CN 202793478U CN 201220527077 CN201220527077 CN 201220527077 CN 201220527077 U CN201220527077 U CN 201220527077U CN 202793478 U CN202793478 U CN 202793478U
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- CN
- China
- Prior art keywords
- rotor
- magnet rotor
- magnetic rotor
- established
- permanent magnet
- 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 - Fee Related
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Abstract
The utility model discloses a water flow sensor which comprises a valve body, a rotor sleeve block, a shaft lever, a magnetic rotor, a check block and a Hall element, wherein the magnetic rotor comprises a permanent magnet and a plastic rubber body. The water flow sensor is characterized in that the magnetic rotor is of an integrated structure consisting of the permanent magnet and the plastic rubber body which are molded of plastics at one time, the magnetic rotor is provided with semicircular wings which form an included angle of 90 DEG, inversion-preventing convex lugs are arranged on the head part of the magnetic rotor, the magnetic rotor is assembled on the rotor sleeve block to be matched with the shaft lever, the top of the check block is provided with inversion-preventing convex teeth corresponding to the inversion-preventing convex lugs on the head part of the magnetic rotor, the check block is rotatably matched with the water inlet end of the valve body, the valve body is provided with a Hall element installing base which corresponds to the permanent magnet; a bearing is assembled between the shaft lever and the cavity of the rotor; and the shaft lever and a wear plate are both made of ceramics. The magnetic rotor flexibly and stably rotates and is long in service life; and due to the adoption of the inversion-preventing structure, the output signal stability can be effectively prevented.
Description
Technical field
The utility model belongs to fluid automatic controlling technical field processed, is specifically related to a kind of water flow sensor.
Background technology
Water flow sensor is widely used in the control system of discharge testing requirement, such as waterway control systems such as gas heater, solar water heater, electric heater, wall-hung boiler, central air conditioner.Mainly formed by valve body, water flow rotor assembly, current stabilization assembly and Hall element etc.When water flow through rotor assembly, magnet rotor rotated, and rotating speed is along with the linear variation of flow, and Hall element detects the corresponding pulse signal of output to controller, judges the discharge size by controller.Existing water flow sensor because magnet rotor directly contacts with water, adsorbs easily the ferruginosity material, thereby affects its sensitivity and serviceable life when working for a long time in water; The in addition rotor reversing that causes easily of the eddy current in the valve body and produce rub-out signal.
Summary of the invention
The utility model adheres to and the reversing problem mainly for the rotor that present water flow sensor exists, and designs and develops all higher water flow sensors of a kind of sensitivity, reliability.
The utility model is by valve body, rotor cover piece, axostylus axostyle, magnet rotor, block and Hall element consist of, magnet rotor comprises permanent magnet and plastic body, it is characterized in that magnet rotor is the molded integral structure of permanent magnet and plastic body one-off pattern, magnet rotor is established the semicircle fin that is mutually 90 ° of angles, magnet rotor cavity inner bottom part setting-in wear plate is also established weep hole, the magnet rotor head set up defences the reversing protruding tooth, magnet rotor cooperates axostylus axostyle to be assemblied on the rotor cover piece, establish four water outlets on the rotor cover piece, the protruding tooth of the anti-reversing of the corresponding magnet rotor head in the block top reversing double wedge of setting up defences, block is established eight circumferential uniform circle hole shape inlet channels, block screws the valve inleting water end, and the Hall element mount pad is established in the permanent magnet position of the corresponding magnet rotor of valve body.
Described axostylus axostyle material is pottery, running in bearings between axostylus axostyle and rotor cavity.
Described wear plate material is pottery, is the cylindrical shape integrative-structure, and wear plate bottom respective shaft boom end is established hemispherical projections.
Magnet rotor is that plastic body and permanent magnet one-off pattern are molded, and permanent magnet is wrapped in the inside by plastic cement.Stressed when two and half garden shape fins make magnet rotor by water impact evenly the bearing when magnet rotor rotates between magnet rotor cavity and axostylus axostyle is not monolateral stressed, and while wear plate respective shaft boom end is established half garden shape projection makes the magnet rotor rotation more flexible steadily.The circle hole shape inlet channel of eight circumference uniform distributions is around permanent magnet on the block, and when such as permanent magnet impurity absorption being arranged, eight water columns by inlet channel can well wash away totally, and the function of self-cleaning is arranged.The anti-reversing double wedge design of the anti-protruding tooth of reversing of magnet rotor head and the corresponding magnet rotor of block can effectively prevent the reversing phenomenon that eddy current condition lower rotor part may occur.
The utility model beneficial effect is: magnet rotor rotates flexibly, steady, long service life, and simultaneously anti-inverted structure design can effectively prevent stable output signal.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the magnetic rotor structure synoptic diagram.
Fig. 3 is the block schematic top plan view.
Among the figure, 1-valve body, 2-rotor cover piece, 3-axostylus axostyle, 4-bearing, 5-wear plate, 6-magnet rotor, 7-permanent magnet, 8-fin, the protruding tooth of the anti-reversing of 9-, 10-weep hole, 11-block, the anti-reversing of 12-double wedge, 13-inlet channel, 14-Hall element.
Embodiment
Such as Fig. 1～Fig. 3, a kind of water flow sensor, it is by valve body 1, rotor cover piece 2, axostylus axostyle 3, magnet rotor 6, block 11 and Hall element 14 consist of, magnet rotor 6 comprises permanent magnet 7 and plastic body, it is characterized in that magnet rotor 6 is the molded integral structure of permanent magnet 7 and plastic body one-off pattern, magnet rotor 6 is established the semicircle fin 8 that is mutually 90 ° of angles, magnet rotor 6 cavity inner bottom part setting-in wear plates 5 are also established weep hole 10, magnet rotor 6 heads set up defences the reversing protruding tooth 9, magnet rotor 6 cooperates axostylus axostyle 3 to be assemblied on the rotor cover piece 2, establish four water outlet (not shown)s on the rotor cover piece 2, the protruding tooth 9 of the anti-reversing of corresponding magnet rotor 6 heads in the block 11 tops reversing double wedge 12 of setting up defences, block 11 is established eight circumferential uniform circle hole shape inlet channels 13, block 11 screws valve body 1 water inlet end, and Hall element 14 mount pads are established in permanent magnet 7 positions of valve body 1 corresponding magnet rotor 6.
Described axostylus axostyle 3 materials are pottery, running in bearings 4 between axostylus axostyle 3 and magnet rotor 6 cavitys.
Described wear plate 5 materials are pottery, are the cylindrical shape integrative-structure, and hemispherical projections is established in corresponding axostylus axostyle 3 ends, wear plate 5 bottoms.
Claims (3)
1. water flow sensor, it is by valve body, rotor cover piece, axostylus axostyle, magnet rotor, block and Hall element consist of, magnet rotor comprises permanent magnet and plastic body, it is characterized in that magnet rotor is the molded integral structure of permanent magnet and plastic body one-off pattern, magnet rotor is established the semicircle fin that is mutually 90 ° of angles, magnet rotor cavity inner bottom part setting-in wear plate is also established weep hole, the magnet rotor head set up defences the reversing protruding tooth, magnet rotor cooperates axostylus axostyle to be assemblied on the rotor cover piece, establish four water outlets on the rotor cover piece, the protruding tooth of the anti-reversing of the corresponding magnet rotor head in the block top reversing double wedge of setting up defences, block is established eight circumferential uniform circle hole shape inlet channels, block screws the valve inleting water end, and the Hall element mount pad is established in the permanent magnet position of the corresponding magnet rotor of valve body.
2. described water flow sensor according to claim 1 is characterized in that described axostylus axostyle material is pottery, running in bearings between axostylus axostyle and rotor cavity.
3. described water flow sensor according to claim 1 is characterized in that described wear plate material for pottery, is the cylindrical shape integrative-structure, and wear plate bottom respective shaft boom end is established hemispherical projections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220527077 CN202793478U (en) | 2012-09-28 | 2012-09-28 | Water flow sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220527077 CN202793478U (en) | 2012-09-28 | 2012-09-28 | Water flow sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202793478U true CN202793478U (en) | 2013-03-13 |
Family
ID=47820724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220527077 Expired - Fee Related CN202793478U (en) | 2012-09-28 | 2012-09-28 | Water flow sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202793478U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382962A (en) * | 2016-11-15 | 2017-02-08 | 浙江华地电子有限公司 | Vortex tube assembly |
-
2012
- 2012-09-28 CN CN 201220527077 patent/CN202793478U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382962A (en) * | 2016-11-15 | 2017-02-08 | 浙江华地电子有限公司 | Vortex tube assembly |
| CN106382962B (en) * | 2016-11-15 | 2023-07-07 | 浙江华地电子有限公司 | Vortex tube assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20150928 |
|
| EXPY | Termination of patent right or utility model |