CN202793477U - Water flow rate sensor - Google Patents
Water flow rate sensor Download PDFInfo
- Publication number
- CN202793477U CN202793477U CN201220437180.6U CN201220437180U CN202793477U CN 202793477 U CN202793477 U CN 202793477U CN 201220437180 U CN201220437180 U CN 201220437180U CN 202793477 U CN202793477 U CN 202793477U
- Authority
- CN
- China
- Prior art keywords
- water flow
- rotor
- angle
- current break
- cover
- 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
Links
Images
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model relates to a water flow rate sensor, which comprises a casing, a Hall element, a water flow reversing sleeve, a magnetic rotor and a rotor support seat, wherein the water flow reversing sleeve is placed in the casing, one end of the magnetic rotor is inserted into the water flow reversing sleeve, the other end of the magnetic rotor is inserted into the rotor support seat, a rotor impeller is arranged on the circumference of the magnetic rotor, the helical angle of the rotor impeller is an included angle Alpha, the water inlet part of the water flow reversing sleeve is provided with a water flow reversing blade, and the helical angle of the water flow reversing blade is an included angle Beta. The water flow rate sensor has the main technical features that the included angle Alpha of the helical angle of the rotor impellers leftwards rotates or rightwards rotates, and the included angle Beta of the helical angle of the water flow reversing blade rightwards rotates or leftwards rotates. The water flow rate sensor has the characteristics that under the condition of the same water flow rate, the rotating speed of the magnetic rotor can be effectively improved, in addition, the flow rate and the rotating speed of the magnetic rotor are in direct proportion, further, the precision of the water flow sensor is further improved, and the like.
Description
Technical field
The utility model relates to a kind of water flow sensor, particularly a kind of water flow sensor that uses on gas-fired water heater.
Background technology
In the prior art, the water flow sensor of domestic gas-fired water heater generally adopts the cruciform magnet rotor, after current pass through deviator, impact magnet rotor, make its rotation, detect the rotating magnetic field of different magnetic poles by the Hall effect principle, cutting magnetic line, produce the height impulse level and export to controller, calculate discharge by controller again, the switch of control machine, temperature incubation function etc.When discharge less, current by the break-in cylinder after, when inadequate to the acting force of magnet rotor, current just directly flow through from the cruciform magnet rotor, cause to exist flow not to be directly proportional with the rotating speed of magnet rotor, and then reduced the defectives such as precision of water flow sensor.For overcoming these defectives, water flow sensor is improved.
Summary of the invention
Technical problem to be solved in the utility model is that a kind of water flow sensor will be provided, it can be in identical discharge situation, the rotating speed of Effective Raise magnet rotor, and flow is directly proportional with the rotating speed of magnet rotor, and then improved the characteristics such as precision of water flow sensor.
The technical scheme that its technical matters that solves the utility model adopts is: it comprises housing, Hall element, current break-in cover, magnet rotor, the rotor bearing, current break-in cover is placed in the housing, magnet rotor one end inserts current break-in cover, its other end inserts the rotor bearing, arrange impeller of rotor on the magnet rotor circumference, described impeller of rotor helix angle is angle α, current break-in cover water inlet is provided with current break-in blade, current break-in blade screw angle is angle β, left-handed or the dextrorotation of impeller of rotor helix angle angle α, current break-in blade screw angle angle β is dextrorotation or left-handed.
The scope of described angle α is 15 °～80 °.
The scope of described angle β is 15 °～80 °.
It also comprises the anxious cover that stops, and suddenly stops being arranged with groove, and the rotor bearing is provided with muscle, and described urgency stops being enclosed within on the magnet rotor, and the muscle on the rotor bearing sticks in the anxious groove that stops overlapping.
It also comprises the stainless steel steel ball, and the stainless steel steel ball is bumped in the corresponding hole of rotor bearing.
The utility model is compared the beneficial effect that produces with background technology:
1, because the utility model adopts impeller of rotor helix angle angle α, current break-in cover water inlet is provided with current break-in blade, current break-in blade screw angle angle β, left-handed or the dextrorotation of described impeller of rotor helix angle angle α, current break-in blade screw angle angle β is dextrorotation or left-handed structure, after water overlaps by the current break-in, current change over rotation status by linear state, impact is on magnet rotor, the helical blade of magnet rotor is subject to acting force, rotational speed is further increased, so it can effectively have in identical discharge situation, can Effective Raise the rotating speed of magnet rotor, and flow is directly proportional with the rotating speed of magnet rotor, and then improved the characteristics such as precision of water flow sensor.
Description of drawings: Fig. 1 is structural representation of the present utility model.
Fig. 2 is the explosive view of Fig. 1.
Fig. 3 is the structural representation of magnet rotor 4 among Fig. 1.
Fig. 4 is the structural representation of current break-in cover 3 among Fig. 1.
Embodiment: referring to accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, shown in the accompanying drawing 4, it comprises housing 1, Hall element 2, current break-in cover 3, magnet rotor 4, rotor bearing 5, suddenly stop overlapping 6, suddenly stopping overlapping 6 is enclosed within on the magnet rotor 4, current break-in cover 3 is placed in the housing 1, magnet rotor 4 one ends insert current break-in cover 3, its other end inserts rotor bearing 5, on magnet rotor 4 circumference impeller of rotor 7 is set, the helix angle of impeller of rotor 7 is angle α, the current break-in is overlapped 3 water inlets and is provided with current break-in blade 8, the helix angle of current break-in blade 8 is angle β, when the helix angle angle α of impeller of rotor 7 is left-handed, the helix angle angle β dextrorotation of current break-in blade 8; When impeller of rotor 7 helix angle angle α dextrorotation, the helix angle angle β of current break-in blade 8 is left-handed.
Helix angle is defined as, on the face of cylinder, and the tangent line of circular helix and by acute angle folded between the face of cylinder straight edge line at point of contact; On circular conical surface, the tangent line of conical helix and by acute angle folded between the circular conical surface straight edge line at point of contact.
The scope of angle α can be 15 °～80 °, and the helix angle angle α of present embodiment rotor impeller 7 is 30 °.
The scope of angle β can be 15 °～80 °, and the helix angle angle β of current break-in blade 8 is 45 ° in the present embodiment.
Can be at the rotor bearing 5 interior stainless steel steel balls 9 that arrange, magnet rotor 4 is little with the contact area of stainless steel steel ball 9, the frictional resistance in the time of can effectively reducing magnet rotor 4 rotation.
During assembling, at first adopt stainless steel steel ball 9 the pressure assembling methods to pack in the rotor bearing 5 corresponding holes, then in the current break-in of magnet rotor 4 being packed into the cover 3, suddenly stopping overlapping 6 is enclosed within on the magnet rotor 4, again rotor bearing 5 is contained on the current break-in cover 3, muscle 11 on the rotor bearing 5 is sticked into suddenly stop overlapping in the groove 10 that 6 upper ends arrange.Muscle 11 is used for anxious 6 the longitudinal register that stops overlapping, and suddenly stops overlapping 6 and can do under the guide effect of muscle 11 and move up and down, and can not rotate.At last Hall element 2 is installed in housing 1 outside, corresponding with the position of magnet rotor 4.
Suddenly stop overlapping 6 lower ends and be provided with the anxious tooth 12 that stops, it is corresponding with the impeller of rotor 7 of magnet rotor 4 suddenly to stop tooth 12, suddenly stops tooth 12 and can correspondingly be stuck in the impeller of rotor 7 of magnet rotor 4, magnet rotor 4 can not be rotated, thereby reach the effect of suddenly stopping.
In use, current flow into the water flow sensor from the water inlet of housing 1, behind current break-in cover 3, current are changed over rotation status by linear state, impact is on magnet rotor 4, the impeller of rotor 7 of magnet rotor 4 is subject to acting force, rotational speed is further increased, Hall element 2 detects the rotating magnetic field of different magnetic poles, and cutting magnetic line produces the height impulse level and exports to controller, calculate discharge by controller again, because the rotating speed of magnet rotor 4 is improved, namely the frequency of cutting magnetic line is improved, and is improved so calculate the precision of discharge.
When the Temporarily Closed water intaking valve, flow is down to suddenly zero.Magnet rotor of the prior art is because inertia also can continue and rotate a period of time, thereby can cause the erroneous judgement of controller.
Because anxious to stop overlapping swinging to of 6 own wts or current mobile, stop overlapping 6 and push magnet rotor 4 to anxious in the utility model, suddenly stop overlapping urgency on 6 and stop tooth 12 magnet rotor 4 is blocked, it is stopped operating at once.Can effectively prevent the dry combustion method of machine like this and damage machine.
Claims (5)
1. water flow sensor, it comprises housing (1), Hall element (2), current break-in cover (3), magnet rotor (4), rotor bearing (5), current break-in cover (3) is placed in the housing (1), magnet rotor (4) one ends insert current break-in covers (3), its other end inserts rotor bearing (5), arrange impeller of rotor (7) on magnet rotor (4) circumference, described impeller of rotor (7) helix angle is angle α, current break-in cover (3) water inlet is provided with current break-in blade (8), current break-in blade (8) helix angle is angle β, it is characterized in that the left-handed or dextrorotation of described impeller of rotor helix angle angle α, current break-in blade screw angle angle β is dextrorotation or left-handed.
2. water flow sensor according to claim 1, the scope that it is characterized in that described angle α is 15 °～80 °.
3. water flow sensor according to claim 2, the scope that it is characterized in that described angle β is 15 °～80 °.
4. each described water flow sensor according to claim 1～3, it is characterized in that it also comprises the anxious cover (6) that stops, suddenly stop cover (6) and be provided with groove (10), the anxious tooth (12) that stops, rotor bearing (5) is provided with muscle (11), described urgency is stopped cover (6) and is enclosed within on the magnet rotor (4), and the muscle (11) on the rotor bearing (5) sticks in the groove (10) that suddenly stops cover (6).
5. water flow sensor according to claim 4 is characterized in that it also comprises stainless steel steel ball (9), and stainless steel steel ball (9) is bumped in the corresponding hole of rotor bearing (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220437180.6U CN202793477U (en) | 2012-08-31 | 2012-08-31 | Water flow rate sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220437180.6U CN202793477U (en) | 2012-08-31 | 2012-08-31 | Water flow rate sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202793477U true CN202793477U (en) | 2013-03-13 |
Family
ID=47820723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220437180.6U Expired - Lifetime CN202793477U (en) | 2012-08-31 | 2012-08-31 | Water flow rate sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202793477U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848902A (en) * | 2014-02-18 | 2015-08-19 | 伊利诺斯工具制品有限公司 | Water-carrying capacity sensing component, water-carrying capacity sensor and water heater installing with water-carrying capacity sensor |
| CN106052771A (en) * | 2016-08-15 | 2016-10-26 | 完美（中国）有限公司 | Magnetic rotor counting structure and water current metering device |
-
2012
- 2012-08-31 CN CN201220437180.6U patent/CN202793477U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848902A (en) * | 2014-02-18 | 2015-08-19 | 伊利诺斯工具制品有限公司 | Water-carrying capacity sensing component, water-carrying capacity sensor and water heater installing with water-carrying capacity sensor |
| CN104848903A (en) * | 2014-02-18 | 2015-08-19 | 伊利诺斯工具制品有限公司 | Water flow sensing component, water flow sensor and water heater equipped with water flow sensor |
| CN106052771A (en) * | 2016-08-15 | 2016-10-26 | 完美（中国）有限公司 | Magnetic rotor counting structure and water current metering device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2017120451A3 (en) | Heart pump with impeller rotational speed control | |
| CN202793477U (en) | Water flow rate sensor | |
| CN202756654U (en) | Electric ball valve | |
| KR101131393B1 (en) | Blades of the impeller underwater pump with adjustable angle | |
| CN104500417B (en) | Frequent start-preventing water pump | |
| CN201382792Y (en) | Water flow sensor impeller assembly and water flow sensor employing same | |
| CN203258108U (en) | Novel water inlet valve assembly | |
| CN207515855U (en) | A kind of one body swimming flow sensor | |
| CN202371281U (en) | Flow sensing device and water flow rate regulating valve using device | |
| CN206311260U (en) | A kind of pressure gauge that drag size is automatically adjusted according to velocity of medium | |
| CN104564689A (en) | Outer counter weight air intake valve | |
| CN106382962B (en) | Vortex tube assembly | |
| CN115289019A (en) | High-pressure water ring vacuum pump capable of preventing impeller from being rusted | |
| US20130243573A1 (en) | Smart pump | |
| CN102434483B (en) | Chopping type blow-down pump | |
| CN212155965U (en) | Flow control valve and electric water heater | |
| CN204419596U (en) | A kind of outer counterweight type suction valve | |
| CN107762893B (en) | Self-monitoring high-filtration deep well pump | |
| CN212838589U (en) | Centrifugal air compressor volute | |
| CN205908817U (en) | Take flow sensor's one -way relief valve for electric water heater | |
| CN201203447Y (en) | Rotary-piston type flowmeter | |
| CN206223244U (en) | A kind of use for laboratory wet gas flow meter | |
| CN204330030U (en) | Heavy caliber table valve integrated formula water meter turbine support | |
| CN205277839U (en) | Self priming pump of two sensings | |
| CN2932217Y (en) | Dry combusting preventing electric water heater capable of controlling flow |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170421 Address after: 528325 Guangdong Province, Foshan city Shunde District Xingtan town De Fu Road No. 71 Patentee after: GUANGDONG WANHE THERMAL ENERGY TECHNOLOGY Co.,Ltd. Address before: 528305 Foshan, Shunde District, Ronggui street, Hongqi Road, No. 80 Patentee before: FOSHAN SHUNDE VANWARD ACCESSORIES CO.,LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |