CN109813386A - Coil induction type water flow sensor - Google Patents
Coil induction type water flow sensor Download PDFInfo
- Publication number
- CN109813386A CN109813386A CN201910118447.1A CN201910118447A CN109813386A CN 109813386 A CN109813386 A CN 109813386A CN 201910118447 A CN201910118447 A CN 201910118447A CN 109813386 A CN109813386 A CN 109813386A
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- China
- Prior art keywords
- coil
- cavity
- hole
- impeller
- induction type
- 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.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 230000006698 induction Effects 0.000 title claims abstract description 18
- 230000004907 flux Effects 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 239000000696 magnetic material Substances 0.000 claims description 3
- 230000035699 permeability Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 2
- 239000004020 conductor Substances 0.000 abstract 1
- 206010003402 Arthropod sting Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Measuring Volume Flow (AREA)
Abstract
A coil induction type water flow sensor comprises an impeller cavity, a water inlet interface, a water outlet interface, a cover body and an impeller, and further comprises a first coil, a second coil, a circuit board, a magnetic conductive sleeve made of magnetic conductive materials and an accommodating cavity cover, wherein the magnetic conductive sleeve is provided with a plurality of through holes along the axis; the containing cavity cover comprises a cover plate part, a shaft body, an upper opening coil cavity and an interface surrounding the shaft body and the upper opening coil cavity, a supporting shaft seat of the impeller cavity supports the supporting shaft, a shaft head is in running fit with a shaft head hole, and a magnetic sleeve is sleeved on the shaft sleeve; the cover plate part is buckled with the containing cavity, the shaft body extends into the shaft sleeve, and the interface is inserted into the containing cavity and is sealed by liquid; first coil and second coil stretch into axis body and upper shed's coil intracavity respectively, circuit board and apron portion fixed connection, and the holding chamber inserts in the lid, and the cooperation can be dismantled with the holding chamber to the lid. The impeller rotates, and the magnetic conduction sleeve enables the magnetic flux of the first coil and the second coil to be conducted or disconnected to serve as a signal and separate from water; the method is not influenced by water quality and has high accuracy.
Description
Technical field
The present invention relates to a kind of water flow sensing units of water heater.
Background technique
Currently available technology, a kind of water flow sensing unit, including impeller cavity, the water inlet interface being connected to wheel chamber, wheel chamber
The water outlet mouthpiece of connection, lid, impeller, the magnet and Hall sensor being located on impeller.There are problems to be: by the shadow of water quality
It rings, poor reliability.
Summary of the invention
The object of the present invention is to provide a kind of coil induction type water flow sensing unit, it has and is not influenced by water quality, reliably
The high feature of property.
The present invention is implemented as follows: a kind of coil induction type water flow sensing unit, is connected to including impeller cavity, with wheel chamber
Water inlet interface, wheel chamber connection water outlet mouthpiece, lid and impeller, be characterized in that the impeller include round seat board,
Blade has axle sleeve positioned at round seat board upper surface and is located at support shaft on lower surface, and axial one end of blade and round seat board connect
It connects, radially inner side and support axis connection, the lower end of support shaft are equipped with spindle nose；
The bottom plate of impeller cavity is equipped with support axle bed, and support axle bed is equipped with spindle nose hole；The open end of impeller cavity, which is equipped with, to hold
Set chamber；
It further include first coil, the second coil, wiring board, flux sleeve made of permeability magnetic material and accommodating chamber lid, First Line
Circle and the second coil are set in the circuit board；Flux sleeve is equipped with several along the through hole of axis；
Accommodating chamber lid includes ceiling plate portion, the axis body of hollow upper opening, upper opening coil bore and surround axis body and upper opening line
The interface of chamber is enclosed,
The support shaft seat supports support shaft of impeller cavity, spindle nose are rotatably assorted with spindle nose hole, and flux sleeve covers on axle sleeve；Cover board
Portion and accommodating cavity fasten, and axis body protrudes into axle sleeve, and interface is inserted into accommodating cavity and liquid sealing；First coil and the second coil difference
It protrudes into the coil bore of axis body and upper opening, wiring board is fixedly connected with ceiling plate portion, and accommodating cavity is inserted into lid, lid and accommodating
Chamber detachably cooperates.
A kind of coil induction type water flow sensing unit, is characterized in that the water inlet interface and water outlet mouthpiece
Intersect in straight line with impeller cavity and along a tangential direction.
A kind of coil induction type water flow sensing unit is characterized in that the lower end of the axis body is equipped with fixed half
Axis；Round seat board in the axle sleeve is equipped with half axis hole, determines semiaxis and is rotatably assorted with half axis hole.
A kind of coil induction type water flow sensing unit is characterized in that the ceiling plate portion is equipped with connecting hole,
The end of the accommodating cavity is equipped with screw hole, and screw passes through connecting hole and screwhole spiro bonding.
A kind of coil induction type water flow sensing unit, be characterized in that the ceiling plate portion be equipped with shank and
Screw hole, wiring board are equipped with pin hole and the connecting hole with counterbore；
Shank and pin hole grafting, screw pass through connecting hole and screwhole spiro bonding.
A kind of coil induction type water flow sensing unit, is characterized in that blade shape in curved surface, concave side
It is opposite with water (flow) direction.
A kind of coil induction type water flow sensing unit of the present invention, due to using such structure, wheel rotation, flux sleeve makes the
The magnetic flux of one coil and the second coil is turned on or off, and as signal, and is separated from water；It is not influenced by water quality, accuracy
It is high.
Detailed description of the invention
Fig. 1 is one of stereogram exploded view of the invention.
Fig. 2 is the two of stereogram exploded view of the invention.
Fig. 3 is one of cross-sectional view of the invention.
Fig. 4 is the two of cross-sectional view of the invention.
Fig. 5 is A-A view of Fig. 4.
Fig. 6 is B-B view of Fig. 4.
Fig. 7 is perspective view of the invention.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of coil induction type water flow sensing unit, including impeller cavity 1, the water inlet interface being connected to wheel chamber
Water outlet mouthpiece 1A, lid 2 and the impeller 3 that 1B, wheel chamber are connected to, the impeller 3 include round seat board 31, blade 32, are located at circle
There is axle sleeve 33 in shape seat board upper surface and is located at support shaft 34 on lower surface, axial one end of blade 32 connect with circle seat board 31,
Radially inner side is connect with support shaft 34, and the lower end of support shaft 34 is equipped with spindle nose 341；
The bottom plate of impeller cavity 1 is equipped with support axle bed 11, and support axle bed is equipped with spindle nose hole 111；The open end of impeller cavity
Equipped with accommodating cavity 12；
It further include first coil 41, the second coil 42, wiring board 5, flux sleeve 6 made of permeability magnetic material and accommodating chamber lid 7,
First coil and the second coil are set in the circuit board；Flux sleeve 6 is equipped with several along the through hole 61 of axis；
Accommodate chamber lid 7 include ceiling plate portion 71, the axis body 72 of hollow upper opening, upper opening coil bore 73 and around axis body and on
The interface 74 of open stich chamber,
The support axle bed 11 of impeller cavity 1 supports support shaft 34, and spindle nose 341 is rotatably assorted with spindle nose hole 111, and 6 sets of flux sleeve
On axle sleeve 33；Ceiling plate portion 71 and accommodating cavity 12 fasten, and axis body 72 protrudes into axle sleeve 33, and interface 74 is inserted into accommodating cavity 12 and liquid
Sealing；First coil 41 and the second coil 42 are respectively protruding into the coil bore 74 of axis body 72 and upper opening, wiring board 5 and ceiling plate portion
71 are fixedly connected, and accommodating cavity 12 is inserted into lid 2, and lid 2 and accommodating cavity 12 detachably cooperate.
The water inlet interface 1B and water outlet mouthpiece 1A intersects in straight line with impeller cavity 1 and along a tangential direction.
As shown in figure 3, the blade 32 shape in curved surface, concave side are opposite with water (flow) direction；When can prevent from flowing backwards in this way, leaf
Wheel rotation.
The lower end of the axis body 72, which is equipped with, determines semiaxis 721；Round seat board 1 in the axle sleeve 33 is equipped with half axis hole 35,
Determine semiaxis 721 to be rotatably assorted with half axis hole.
The ceiling plate portion 71 is equipped with connecting hole 711, and the end of the accommodating cavity 12 is equipped with screw hole 121, and screw, which passes through, to be connected
Hole 711 is connect to screw togather with screw hole 121.
The ceiling plate portion 71 is equipped with shank 712 and screw hole 713, and wiring board 5 is equipped with pin hole 51 and the connection with counterbore
Hole 52；
Shank 712 and 51 grafting of pin hole, screw pass through connecting hole 52 and screw togather with screw hole 713.
The present invention is in use, as shown in Figure 3, Figure 4, and water enters impeller cavity 1 by water inlet interface 1B, impeller 3 rotates clockwise,
Water is flowed out by water outlet mouthpiece 1A, and flux sleeve 6 is rotated with impeller 3, when the through hole 61 on flux sleeve 6, first coil 41 and second
Coil 42 point-blank when, magnetic circuit conducting generates magnetic signal, first coil 41 and the second coil 42 and adjacent two perforations
When flux sleeve between hole 61 is opposite, magnetic circuit is disconnected.
Above-described is only preferred embodiments of the invention.It should be pointed out that for the ordinary skill of this field
For personnel, without departing from the principles of the present invention, it can also make several improvements and modification, this is also considered as of the invention
Protection scope.
Claims (6)
1. a kind of coil induction type water flow sensing unit is connected to including impeller cavity, the water inlet interface being connected to wheel chamber, wheel chamber
Water outlet mouthpiece, lid and impeller, it is characterised in that: the impeller has including round seat board, blade, positioned at round seat board upper surface
Axle sleeve and be located at support shaft on lower surface, axial one end of blade connect with round seat board, radially inner side with support axis connection, prop up
The lower end for supportting axis is equipped with spindle nose；
The bottom plate of impeller cavity is equipped with support axle bed, and support axle bed is equipped with spindle nose hole；The open end of impeller cavity is equipped with accommodating cavity；
Further include first coil, the second coil, wiring board, flux sleeve made of permeability magnetic material and accommodating chamber lid, first coil and
Second coil is set in the circuit board；Flux sleeve is equipped with several along the through hole of axis；
Accommodating chamber lid includes ceiling plate portion, the axis body of hollow upper opening, upper opening coil bore and surround axis body and upper opening coil bore
Interface,
The support shaft seat supports support shaft of impeller cavity, spindle nose are rotatably assorted with spindle nose hole, and flux sleeve covers on axle sleeve；Ceiling plate portion with
Accommodating cavity fastens, and axis body protrudes into axle sleeve, and interface is inserted into accommodating cavity and liquid sealing；First coil and the second coil are respectively protruding into
In the coil bore of axis body and upper opening, wiring board is fixedly connected with ceiling plate portion, and accommodating cavity is inserted into lid, and lid and accommodating cavity can
Disassembly cooperation.
2. a kind of coil induction type water flow sensing unit according to claim 1, it is characterised in that: the water inlet interface and go out
Water interface intersects in straight line with impeller cavity and along a tangential direction.
3. a kind of coil induction type water flow sensing unit according to claim 1, it is characterised in that: the lower end of the axis body is set
Have and determines semiaxis；Round seat board in the axle sleeve is equipped with half axis hole, determines semiaxis and is rotatably assorted with half axis hole.
4. a kind of coil induction type water flow sensing unit according to claim 1,2 or 3, it is characterised in that: the ceiling plate portion
It is equipped with connecting hole, the end of the accommodating cavity is equipped with screw hole, and screw passes through connecting hole and screwhole spiro bonding.
5. a kind of coil induction type water flow sensing unit according to claim 1,2 or 3, it is characterised in that: the ceiling plate portion
It is equipped with shank and screw hole, wiring board is equipped with pin hole and the connecting hole with counterbore；
Shank and pin hole grafting, screw pass through connecting hole and screwhole spiro bonding.
6. a kind of coil induction type water flow sensing unit according to claim 1,2 or 3, it is characterised in that: the blade is in
Curved form, concave side are opposite with water (flow) direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910118447.1A CN109813386A (en) | 2019-02-16 | 2019-02-16 | Coil induction type water flow sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910118447.1A CN109813386A (en) | 2019-02-16 | 2019-02-16 | Coil induction type water flow sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109813386A true CN109813386A (en) | 2019-05-28 |
Family
ID=66606724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910118447.1A Pending CN109813386A (en) | 2019-02-16 | 2019-02-16 | Coil induction type water flow sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109813386A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594113A (en) * | 2020-12-07 | 2021-04-02 | 中山职业技术学院 | Water-electricity separation type outer rotor pipeline generator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0121734A1 (en) * | 1983-03-21 | 1984-10-17 | Socam | Device for measuring the rotation of a flow meter turbine |
| KR20120074551A (en) * | 2010-12-28 | 2012-07-06 | 주식회사 자누스코리아 | Flow measurement apparatus |
| CN204330011U (en) * | 2014-11-26 | 2015-05-13 | 柯远珍 | A kind of multi-functional flow sensor |
| KR20150061838A (en) * | 2013-11-28 | 2015-06-05 | 차호준 | Electronic type water meter has been applied nonmagnetic material |
| CN209387081U (en) * | 2019-02-16 | 2019-09-13 | 中山市汉功电器科技有限公司 | Coil induction type water flow sensor |
-
2019
- 2019-02-16 CN CN201910118447.1A patent/CN109813386A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0121734A1 (en) * | 1983-03-21 | 1984-10-17 | Socam | Device for measuring the rotation of a flow meter turbine |
| KR20120074551A (en) * | 2010-12-28 | 2012-07-06 | 주식회사 자누스코리아 | Flow measurement apparatus |
| KR20150061838A (en) * | 2013-11-28 | 2015-06-05 | 차호준 | Electronic type water meter has been applied nonmagnetic material |
| CN204330011U (en) * | 2014-11-26 | 2015-05-13 | 柯远珍 | A kind of multi-functional flow sensor |
| CN209387081U (en) * | 2019-02-16 | 2019-09-13 | 中山市汉功电器科技有限公司 | Coil induction type water flow sensor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594113A (en) * | 2020-12-07 | 2021-04-02 | 中山职业技术学院 | Water-electricity separation type outer rotor pipeline generator |
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