CN207649688U - A kind of anti-jamming water flow sensor - Google Patents
A kind of anti-jamming water flow sensor Download PDFInfo
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- CN207649688U CN207649688U CN201721643531.8U CN201721643531U CN207649688U CN 207649688 U CN207649688 U CN 207649688U CN 201721643531 U CN201721643531 U CN 201721643531U CN 207649688 U CN207649688 U CN 207649688U
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- magnet rotor
- water flow
- pedestal
- flow sensor
- upper cover
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Abstract
The utility model discloses a kind of anti-jamming water flow sensors, including：Pedestal（1）, upper cover（3）, magnet rotor（4）, guiding axis（5）, magnet ring（6）, hall sensing circuit unit（9）, cover board（11）, also include isolation board（2）, snap ring（7）, isolation board（2）With upper cover（3）Between form upper cavity（10）, with pedestal（1）Between form lower chamber（20）；Magnet rotor（4）Including positioning column（401）And turbo blade（402）, turbo blade（402）Installation is contained in lower chamber（20）In, positioning column（401）Across isolation board（2）Central through hole to the upper cavity（10）In, magnet ring（6）Nesting is fixed on the positioning column（401）On.The utility model can effective solution water flow sensor magnet rotor be easy stuck shortcoming, improve reliability, precision and the stability of water flow sensor, the reliability of lifting means, comfort are widely used in various anti-jamming water flow sensors.
Description
Technical field
The utility model belongs to water flow sensor field, and in particular to a kind of anti-jamming water flow sensor.
Background technology
Magnet rotor formula water flow sensor（Flowmeter）As the core component of water heater and net water dispenser, actually answering
The effect that flow monitoring and metering are shouldered in is a kind of indispensable sensor module.Water flow sensor it is highly reliable
Property and accuracy be to realize that water heater, net water dispenser temperature be constant and the critical piece of measuring accuracy, can greatly improve water heater,
The comfort level and user experience of net water dispenser.
There is main problem existing for magnet rotor formula water flow sensor on existing market：Measurement error is bigger than normal, magnetic
Rotor is easy the deficiencies of reflux of stuck, flow computes repeatedly, wherein magnet rotor be easy it is stuck be a generally existing hidden danger
And deficiency.
The main reason for magnet rotor is stuck is as follows：1, the gap between magnet rotor and upper cover is small, especially magnet and
Gap between upper cover is especially narrow, incudes to enable permanent magnet smoothly to be generated with the hall sensing circuit built in upper cover, two
Person's distance is about 1.5mm, and slightly impurity is stuck in upper cover by magnet rotor into being possible to, and causes pulse-free signal defeated
Go out；2, it is China's common problem that water quality is poor, and water is more containing silt, and water hardness is high, this is also that magnet rotor is easy
A stuck reason；3, Ferrous particles are more in water, and the permanent magnet of magnet rotor is easily adsorbed onto a large amount of Ferrous particles, causes
Magnet rotor is stuck；4, the structure design existing defects of magnet rotor, existing market magnet rotor generally use inside card are wear-resisting
Pearl, by the plane and wear-resisting pearl progress frictional rotation at the top of guiding axis, the benefit of this structure is that friction is small, deficiency
Place is that centrifugal force is big, in addition the space that upper cover places magnet rotor is small, magnet rotor is susceptible to shake, becomes when running at high speed
The bad problem such as shape, bias, stuck.Water flow sensor magnet rotor is once stuck, and water heater and net water dispenser are just by face
The case where facing shutdown and repair after sale, to producer and using great inconvenience is all brought, also give water heater and net water dispenser
Industry development bring harmful effect.
Invention content
For the drawbacks described above of the prior art, the utility model proposes a kind of water flows that magnet rotor can be prevented stuck
Sensor structure, to reduce the stuck inoperative phenomenon of water flow sensor magnet rotor, to improve water flow sensor
The satisfaction rate of service life and user.
A kind of anti-jamming water flow sensor, including：Pedestal 1, upper cover 3, magnet rotor 4, guiding axis 5, magnet ring 6, Hall
Sensor circuit component 9, cover board 11, the hall sensing circuit unit 9 are mounted on described by 11 fixing seal of cover board
Upper cover 3 on, the upper cover 3 is fixedly connected with the pedestal 1, and the pedestal 1 is embedded with guiding axis 5, described magnetic to turn
Son 4 is nested to be mounted on the guiding axis 5, also includes isolation board 2, snap ring 7, and the isolation board 2 is mounted on the pedestal 1
Between upper cover 3, between the isolation board 2 and the upper cover 3 formed upper cavity 10, the isolation board 2 with it is described
Lower chamber 20 is formed between pedestal 1；The magnet rotor 4 includes positioning column 401 and turbo blade 402, the turbine leaf
Piece 402, which is installed, to be contained in the lower chamber 20, and the positioning column 401 passes through the central through hole of the isolation board 2 extremely
In the upper cavity 10,6 nesting of magnet ring is fixed on the positioning column 401.
The inner cavity annular of above-mentioned pedestal 1 is provided with diversion trench 101, and the diversion trench 101 is equipped with concave structure；The isolation
Plate 2 is circular configuration, and bottom is equipped with convex structure, the concave structure of the convex structure of the isolation board 2 and the diversion trench 101
It is adapted and the installation that coincide is fixed.
Above-mentioned magnet ring 6 is fixed on by 7 nesting of snap ring on the positioning column 401, and the magnet ring 6 and snap ring 7 are installed
In the upper cavity 10.
Above-mentioned upper cover 3 and the pedestal 1 pass through 12 fixed seal connection of fixed screw 8 and sealing ring.
The middle part of above-mentioned magnet rotor 4 is equipped with spill through-hole, and 4 top of the magnet rotor is equipped with positioning column 401.
Above-mentioned guiding axis 5 be convex shaft, i.e., the sectional area of top half be less than lower half portion sectional area, and with it is described
4 middle part spill through-hole of magnet rotor be adapted and nested installation is fixed.
Upper and lower cavities structure is arranged in the utility model, and upper and lower cavities are separated using isolation board, the permanent magnetism of magnet rotor
Iron is partially disposed in upper cavity, and upper cavity includes the flux ring portion of magnet rotor, upper cover part；The blade-section of magnet rotor is pacified
It is placed in lower chamber, lower chamber includes the turbine portion of magnet rotor, base portion；Isolation board is among upper and lower cavities, isolation
There are the through-hole passed through for magnet rotor among plate, via clearance is small, has filtering function, larger impurity especially irony
Particle can not enter upper cavity by the through-hole of fixinig plate, enter upper cover to reduce magnet ring absorption Ferrous particles and larger impurity
With the possibility in magnet rotor gap, the stuck situation of magnet rotor is fundamentally reduced；It is equipped with above upper cover and places Hall sense
The cavity and cover board of circuit, lower section is answered to be equipped with the magnet rotor widened and place cavity, cavity is fully taking into account Hall when being arranged
Expand the gap between magnet rotor and upper cover after the case where sensor circuit is placed as possible, abandons round set-up mode and adopt rectangular knot
Structure, it is ensured that square hole space on other three sides in addition to one side space for placing hall sensing circuit is smaller is set by maximal clearance
Meter reduces stuck situation and occurs to ensure magnet rotor and upper cover gap bigger；It is arranged simultaneously using magnet rotor shaft hole
At the mode of through-hole, the shaft hole of magnet rotor is arranged to concave structure, wear-resistant guiding axis is arranged to convex structure, and magnetism turns
The shaft hole and guiding axis concaveconvex structure of son mutually agree with, you can reduce friction coefficient, it is dry to ensure that concentricity reduces centrifugation
The shake disturbed, and the abrasion deformation that shaft hole is brought by shake can be reduced, keep magnet rotor to be smoothed out in upper cover placed cavity
Rotation and effective clearance between the two, reduce stuck phenomenon.The utility model can effective solution water flow sensor magnetism
Rotor is easy stuck shortcoming, improves reliability, precision and the stability of water flow sensor, reduces the bad of equipment
Rate, reliability, the comfortableness and security of lifting means.
Due to above-mentioned advantageous effect, the utility model is extensively in various anti-jamming water flow sensors.
Description of the drawings
Fig. 1 is the utility model decomposition texture schematic diagram；
Fig. 2 is cross-sectional view after the utility model assembling；
Fig. 3 is the utility model partial structurtes enlarged diagram；
Fig. 4 is the partial structurtes enlarged diagram of the utility model upper cavity, lower chamber；
Fig. 5 is the structural schematic diagram of the utility model diversion trench and ontology；
Fig. 6 is the cross-sectional view of the utility model diversion trench and ontology；
Fig. 7 is the cross-sectional view of the utility model magnet rotor and guiding axis.
Specific implementation mode
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in Figs 1-4, a kind of anti-jamming water flow sensor, including：Pedestal 1, isolation board 2, upper cover 3, magnet rotor
4, guiding axis 5, magnet ring 6, snap ring 7, fixed screw 8, hall sensing circuit unit 9, sealing ring 12, cover board 11, the Hall
Sensor circuit component 9 is mounted on by 11 fixing seal of cover board in the upper cover 3, the upper cover 3 and the bottom
For seat 1 by 12 fixed seal connection of screw 8 and sealing ring, the pedestal 1 is embedded with guiding axis 5, the nested peace of the magnet rotor 4
On the guiding axis 5.As shown in fig. 7, guiding axis 5 is convex shaft, i.e., the sectional area of top half is less than lower half portion
Sectional area, the guiding axis 5 and and the 4 middle part spill through-hole of magnet rotor is adapted and nested installation fixation.Institute
The isolation board 2 stated is mounted between the pedestal 1 and upper cover 3, is formed between the isolation board 2 and the upper cover 3
Cavity 10 forms lower chamber 20 between the isolation board 2 and the pedestal 1；The installation of magnet rotor 4 is contained in institute
In the lower chamber 20 stated, the middle part of above-mentioned magnet rotor 4 is equipped with spill through-hole, and the magnet rotor 4 includes 401 He of positioning column
Turbo blade 402, the turbo blade 402 installation are contained in the lower chamber 20, and the positioning column 401 passes through institute
In the central through hole for the isolation board 2 stated to the upper cavity 10,6 nesting of magnet ring is fixed on the positioning column 401
On.
As seen in figs. 5-6, the inner cavity annular of pedestal 1 is provided with diversion trench 101, and the diversion trench 101 is equipped with concave structure；
The isolation board 2 is circular configuration, and bottom is equipped with convex structure, the convex structure of the isolation board 2 and the diversion trench 101
Concave structure is adapted and the installation that coincide is fixed；Water (flow) direction makes as shown in the label 102 of Fig. 6 under the guiding of diversion trench 101
Obtain impeller rotation and the triggering of hall sensing circuit unit 9 coupling of magnet rotor 4.
The action relationships and operation principle of the utility model：According to hall principle, magnet rotor 4 and hall sensing are used
9 matched mode of circuit unit pushes magnet rotor 4 when flow enters inner cavity along 102 directions along 1 inlet opening of pedestal
It rotates, the triggering of the hall sensing circuit unit 9 on pedestal 1 is coupled to realize magnet rotor 4, Hall at linear proportional
Thus element generates pulse signal and realizes output；When flow carries impurity or particle enters 1 cavity of pedestal, by isolation board 2
Buffer action, the impurity or particle of flow and carrying passes through from lower chamber, impurity or particle is more difficult to get access is isolated the isolation of plate 2
The phenomenon that upper cavity to come, 6 part of magnet ring of upper cavity interior magnet rotor 4 can be greatly reduced into impurity and particle, from
And reduce the stuck probability of magnet rotor 4；Upper cover 3 described in the utility model places the cavity side of being set as of 4 magnet ring 6 of magnet rotor
Shape slot, ensure square hole except place hall sensing circuit unit 9 side space it is smaller in addition to other three sides space by
Maximal clearance is designed, to ensure 3 gap bigger of magnet rotor 4 and upper cover, when impurity enters in magnet rotor 4 and upper cover 3 not
Can be stuck in the two gap can not fall, and can be taken away by flow, play the role of automated cleaning, reduce stuck situation hair
It is raw；Guiding axis 5 is arranged to convex structure by the utility model, and concavity through-hole, the mutual contract of the two is arranged in 4 shaft hole of magnet rotor
Close, you can reduce friction coefficient, ensure that the concentricity between magnet rotor 4 and shaft, reduce centrifugal force bring shake, subtract
Few shaft hole abrasion deformation brought by magnet rotor shake, fully keeps magnet rotor 4 to smooth out rotation in 3 placed cavity of upper cover
With effective clearance between the two, stuck phenomenon is finally reduced.
The utility model can effective solution water flow sensor magnet rotor be easy stuck shortcoming, improve flow
Reliability, precision and the stability of quantity sensor reduce the fraction defective of equipment, reliability, comfort and the peace of lifting means
Quan Xing.
Claims (6)
1. a kind of anti-jamming water flow sensor, including：Pedestal（1）, upper cover（3）, magnet rotor（4）, guiding axis（5）, magnet ring
（6）, hall sensing circuit unit（9）, cover board（11）, the hall sensing circuit unit（9）By the cover board（11）Gu
Surely it is sealingly mounted at the upper cover（3）On, the upper cover（3）With the pedestal（1）It is fixedly connected, the pedestal（1）
It is embedded with the guiding axis（5）, the magnet rotor（4）Nesting is mounted on the guiding axis（5）On, it is characterised in that：Also wrap
Containing isolation board（2）, snap ring（7）, the isolation board（2）Mounted on the pedestal（1）With upper cover（3）Between, it is described every
From plate（2）With the upper cover（3）Between form upper cavity（10）, the isolation board（2）With the pedestal（1）Between shape
At lower chamber（20）；The magnet rotor（4）Including positioning column（401）And turbo blade（402）, the turbo blade
（402）Installation is contained in the lower chamber（20）In, the positioning column（401）Across the isolation board（2）Center
Through-hole is to the upper cavity（10）In, the magnet ring（6）Nesting is fixed on the positioning column（401）On.
2. a kind of anti-jamming water flow sensor according to claim 1, it is characterised in that：The pedestal（1）Inner cavity
Annular is provided with diversion trench（101）, the diversion trench（101）Equipped with concave structure；The isolation board（2）For circular configuration, bottom
Portion is equipped with convex structure, the isolation board（2）Convex structure and the diversion trench（101）Concave structure be adapted and coincide
Installation is fixed.
3. a kind of anti-jamming water flow sensor according to claim 1, it is characterised in that：The magnet ring（6）Pass through
Snap ring（7）Nesting is fixed on the positioning column（401）On, the magnet ring（6）And snap ring（7）Installation is contained in the epicoele
Body（10）In, the upper cavity（10）For square structure.
4. a kind of anti-jamming water flow sensor according to claim 1, it is characterised in that：The upper cover（3）And institute
The pedestal stated（1）Pass through fixed screw（8）And sealing ring（12）Fixed seal connection.
5. a kind of anti-jamming water flow sensor according to claim 1, it is characterised in that：The magnet rotor（4）'s
Middle part is equipped with spill through-hole, the magnet rotor（4）Top is equipped with the positioning column（401）.
6. a kind of anti-jamming water flow sensor according to claim 1, it is characterised in that：The guiding axis（5）It is convex
Shape shaft, and with the magnet rotor（4）Spill through-hole be adapted and nested installation is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721643531.8U CN207649688U (en) | 2017-11-30 | 2017-11-30 | A kind of anti-jamming water flow sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721643531.8U CN207649688U (en) | 2017-11-30 | 2017-11-30 | A kind of anti-jamming water flow sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207649688U true CN207649688U (en) | 2018-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721643531.8U Active CN207649688U (en) | 2017-11-30 | 2017-11-30 | A kind of anti-jamming water flow sensor |
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| Country | Link |
|---|---|
| CN (1) | CN207649688U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114623034A (en) * | 2020-12-14 | 2022-06-14 | 宜善电机工业有限公司 | Torque-increasing flow guide structure of coaxial water flow starter |
-
2017
- 2017-11-30 CN CN201721643531.8U patent/CN207649688U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114623034A (en) * | 2020-12-14 | 2022-06-14 | 宜善电机工业有限公司 | Torque-increasing flow guide structure of coaxial water flow starter |
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