CN202371281U - Flow sensing device and water flow rate regulating valve using device - Google Patents
Flow sensing device and water flow rate regulating valve using device Download PDFInfo
- Publication number
- CN202371281U CN202371281U CN2011205026160U CN201120502616U CN202371281U CN 202371281 U CN202371281 U CN 202371281U CN 2011205026160 U CN2011205026160 U CN 2011205026160U CN 201120502616 U CN201120502616 U CN 201120502616U CN 202371281 U CN202371281 U CN 202371281U
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- sensing device
- flow sensing
- impeller
- water flow
- hall element
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Abstract
The utility model discloses a flow sensing device comprising a signal generator and a Hall element. The signal generator comprises a cylinder body, a magnetic rotator with a rotating shaft, a rotator support and an impeller, wherein the impeller is connected with a water intake end of the cylinder body; and one end of the rotating shaft is connected with the rotator support and the other end is connected with the impeller. The flow sensing device is characterized in that the rotator support is provided with a lug boss; and the lug boss is in contact with one end point of the rotating shaft. The water flow can be sensitively sensed and the service life of the flow sensing device can be effectively prolonged. Meanwhile, the utility model further provides a water flow rate regulating valve using the flow sensing device.
Description
Technical field
The water flow ratio adjusting valve that the utility model relates to a kind of flow sensing device and uses this device, particularly a kind of water flow Proportional valve and flow sensing device that is used for gas-fired water heater.
Background technique
Flow sensing device of the prior art comprises flux signal generator and Hall element; The structure of flux signal generator is shown in accompanying drawing 1, and an end of magnet rotor 8 shafts 81 of this flux signal generator contacts with 9 of rotor bearings, when magnet rotor 8 high speed rotating; Owing to the rubbing action that exists between magnet rotor 8 and the rotor bearing 9; Reduce the sensitivity of flow sensing device, the working life of also having reduced the rotor bearing significantly simultaneously, and water flow ratio adjusting valve of the prior art; Like Chinese patent publication number CN201902564U; Name is called the water flow Proportional valve, provide a kind of and can regulate the water flow Proportional valve of the size of water flow according to water-exit temperature, but this water water flow ratio adjusting valve can't be to automatic adjusting water flow size when the temp probe of water outlet breaks down; For overcoming these defectives, flow induction installation and water flow rule of three are improved.
Summary of the invention
The utility model technical problem to be solved is that a kind of flow sensing device and water flow Proportional valve will be provided; It can respond to the size of water flow delicately; And the working life that can improve the flow sensing device effectively, it can improve the degree of regulation of water flow ratio adjusting valve effectively simultaneously.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of flow sensing device comprises signal generator and Hall element; Said signal generator comprises magnet rotor, rotor bearing, the impeller of cylindrical shell, band rotating shaft; Impeller links to each other with the feed-water end of cylindrical shell, and rotating shaft one end links to each other with the rotor bearing, and the other end links to each other with impeller; The rotor bearing is provided with boss, and said boss contacts with an end points of rotating shaft.
Described boss is ball-crown body or ellipse ball-crown body.
Also be provided with stopping device between said magnet rotor and the rotor bearing, stopping device and the contacted end face of magnet rotor upper blade are provided with the stopper of several inclinations, and the other end is provided with several grooves that matches with rotor bearing upper clamp slice.
Be provided with between the adjacent stopper and the contacted surface of contact of blade.
Described impeller and cylindrical shell are integrally formed.
The end face that is provided with impeller is fixed on the cylindrical shell.
A kind of water flow ratio adjusting valve of this flow sensing device that uses comprises valve body, spool, mandrel, motor; Valve body is provided with intake tunnel and the exhalant canal that is interconnected; One end of said valve shaft passes spool; The other end links to each other with the rotating shaft of motor, and said intake tunnel is provided with the flow sensing device.
Be provided with signal generator in the described intake tunnel, the outer wall of described intake tunnel is provided with Hall element.
The outer wall of said intake tunnel is provided with the Hall element mounting groove, and described Hall element passes through screw on the Hall element mounting groove.
Described spool is processed by copper or plastics.
The utility model is compared the beneficial effect that is produced with existing technology: the utility model is provided with boss owing to be employed in the rotor bearing; And boss and magnet rotor point contacting structure; Make the flow sensing device can respond to the size of water flow delicately, and can improve the working life of flow sensing device effectively.
Further, because boss is ball-crown body or ellipse ball-crown body, make processing and easy for installation.
Further; Owing between magnet rotor and rotor bearing, have additional stopping device; And stopping device and the contacted end face of magnet rotor upper blade are provided with outstanding inclination stopper, thereby can prevent effectively that the blade on the magnet rotor from reversing, and when no current, can stop the rotation fast.
Further, be provided with and the contacted surface of contact of blade convenient processing and installation between the stopper owing to link to each other.
Further, because impeller and cylindrical shell are integrally formed, easy for installation.
Further, since impeller and cylindrical shell partial installation, processing and easy to maintenance.
The water flow ratio adjusting valve of the utility model is through being provided with the flow sensing device on the intake tunnel of valve body; Can be effectively regulate the water flow size of water flow ratio adjusting valve in time, thereby improve the degree of regulation of water flow ratio adjusting valve according to the size of the inflow of water intake.
Further, spool is made of plastics, and reduces manufacture cost effectively.
Description of drawings: Fig. 1 is the sectional drawing of signal generator 5 in the existing technology flow sensing device.
Fig. 2 is 5 first kinds of embodiments' of signal generator in the flow sensing device of the utility model a sectional drawing.
Fig. 3 is the explosive view of Fig. 2.
Fig. 4 is the sectional block diagram of Fig. 2.
Fig. 5 is 5 second kinds of embodiments' of signal generator in the flow sensing device of the utility model explosive view for Fig. 2.
Fig. 6 is the sectional drawing of the water flow ratio adjusting valve of the utility model.
Fig. 7 is the explosive view of Fig. 6.
Embodiment: referring to accompanying drawing 2,3, shown in 4, flow sensing device in the utility model comprises signal generator 5 and Hall element 6; First kind of embodiment of signal generator 5 comprises magnet rotor 8, rotor bearing 9, the impeller 71 of cylindrical shell 7, band rotating shaft 81, and impeller 71 is positioned at the feed-water end of cylindrical shell 7, and impeller 71 is integrally formed with cylindrical shell 7; Rotating shaft 81 1 ends link to each other with rotor bearing 9, and the other end links to each other with impeller 71, and described rotor bearing 9 is provided with boss 91; Said boss 91 contacts with an end points of rotating shaft 81, and boss 91 can be ball-crown body or ellipse ball-crown body, is ball-crown body among this figure; The other end of rotating shaft 81 links to each other with impeller 71; Magnet rotor 8 is provided with 4 or 6 blades 82, and when blade 82 is a Nogata shape, impeller 71 is spirality or Nogata shape; And when blade 82 was spirality, impeller 71 was a Nogata shape, used through blade 82 and impeller 71 form fit, can improve the linear relationship of pulse output frequency and flow, and then improve the induction precision of water flow effectively; Signal generator 5 also comprises stopping device 10 in the present embodiment; Stopping device 10 and magnet rotor 8 upper blades 82 contacted end faces are provided with the stopper 101 of several inclinations; And be provided with when installing between the adjacent stopper 101 and blade 82 contacted surface of contact 103, stopping device 10 is a hollow and annular body in the present embodiment, and the quantity of surface of contact 103, stopper 101 equates with the quantity of blade 82; During magnet rotor 8 normal rotations; Blade 82 normally rotates along the plane of inclination of stopper 101, and when counterrotating, blade 82 stopped the rotation owing to the stopping of vertical plane that receives stopper 101; The other end of check device 10 is provided with several and the groove 102 that rotor bearing 9 upper clamp slices 92 match, and the quantity of card 92 is 4 in the present embodiment; Hall element 6 is installed near the magnet rotor 8 of signal generator 5, is used for converting the collection magnetic signal into high low pulse signal.
Referring to accompanying drawing 5; 5 second kinds of embodiments of signal generator are that with first kind of embodiment's the main distinction it also comprises the end face that is provided with impeller 71, and end face 11 is provided with some card platforms 111; Cylindrical shell 7 feed-water ends are provided with and block platform 111 corresponding draw-in grooves 73; End face 11 is fastened on the feed-water end of cylindrical shell 7 with draw-in groove 73 through card platform 111, and impeller 71 is a spirality in the present embodiment, and blade 82 is a Nogata shape.
During work, current get in the cylindrical shell 7 from impeller 71, drive magnet rotor 8 simultaneously and rotate, and Hall element 6 cutting magnetic inductions are answered line, thereby produce high low pulse signal.
Referring to accompanying drawing 6 and 7; Water flow ratio adjusting valve in the present embodiment comprises valve body 1, spool 3, mandrel 2, motor 4, and valve body 1 is provided with the intake tunnel 13 and exhalant canal 14 that is interconnected, and an end of said mandrel 2 passes spool 3; The other end links to each other with the rotating shaft of motor 4; Intake tunnel 13 is provided with signal generator 5, earlier signal generator 5 is put into intake tunnel 13 during installation, and then through back-up ring 51 signal generator 5 is fixed in the intake tunnel 13; The outer wall of intake tunnel 13 is provided with Hall element mounting groove 61, and Hall element 6 passes through screw on Hall element mounting groove 61.Other concrete structure of water flow ratio adjusting valve is explained in Chinese patent publication number CN201902564U, is no longer described at this.
During use, the water flow Proportional valve is connected on the intake pipe in the gas water-heater through water intake, exhalant canal 14 water outlets of intake tunnel 13, when current during through flux signal generator 5; The magnet rotor 8 that drives in the flux signal generator 5 rotates, and Hall element 6 cutting magnetic inductions are answered line, produces the height impulse level; Pulse signal is passed to controller; Controller comes drive motor 4 through the variation of pulse signal frequency, and motor 4 drives mandrel 2 rotations, and the ledge structure on the mandrel 2 moves forward and backward; The water flow section of the exhalant canal 14 of the feasible valve body 1 of flowing through is long-pending to be changed, thereby realizes the meticulous adjusting to water flow.
Simultaneously; The temp probe that is provided with in the exhalant canal 14 12 monitoring water-exit temperatures in real time feeds back to controller, as the water temperature drift occurs, the height and the temperature feedback signal of the pulse signal frequency that controller can produce according to Hall element 6; The running of control motor 4; Constantly adjust the size of water flow, the temperature of keeping exhalant canal 14 really realizes the constant of water-exit temperature in user's setting value.
Claims (10)
1. flow sensing device; It comprises signal generator (5) and Hall element (6); Said signal generator (5) comprises magnet rotor (8), rotor bearing (9), the impeller (71) of cylindrical shell (7), band rotating shaft (81); Impeller (71) links to each other with the feed-water end of cylindrical shell (7), and rotating shaft (81) one ends link to each other with rotor bearing (9), and the other end links to each other with impeller (71); It is characterized in that described rotor bearing (9) is provided with boss (91), said boss (91) contacts with an end points of rotating shaft (81).
2. flow sensing device according to claim 1 is characterized in that described boss (91) is ball-crown body or ellipse ball-crown body.
3. flow sensing device according to claim 1 and 2; It is characterized in that also being provided with stopping device (10) between said magnet rotor (8) and the rotor bearing (9); Stopping device (10) and the contacted end face of magnet rotor (8) upper blade (82) are provided with the stopper (101) of several inclinations, and the other end is provided with several grooves (102) that matches with rotor bearing (9) upper clamp slice (92).
4. flow sensing device according to claim 3 is characterized in that being provided with between the adjacent stopper (101) and the contacted surface of contact of blade (82) (103).
5. flow sensing device according to claim 3 is characterized in that described impeller (71) and cylindrical shell (7) are integrally formed.
6. flow sensing device according to claim 3 is characterized in that it also comprises the end face (11) that is provided with impeller (71), and end face (11) is installed on the cylindrical shell (7).
7. water flow ratio adjusting valve that uses each described flow sensing device of claim 1～6; Comprise valve body (1), spool (3), mandrel (2), motor (4); Valve body (1) is provided with intake tunnel (13) and the exhalant canal (14) that is interconnected; One end of said mandrel (2) passes spool (3), and the other end links to each other with the rotating shaft of motor (4), it is characterized in that said intake tunnel (13) is provided with the flow sensing device.
8. water flow ratio adjusting valve according to claim 7 is characterized in that being provided with signal generator (5) in the described intake tunnel (13), and the outer wall of described intake tunnel (13) is provided with Hall element (6).
9. according to claim 7 or 8 described water flow ratio adjusting valves, it is characterized in that the outer wall of said intake tunnel (13) is provided with Hall element mounting groove (61), described Hall element (6) passes through screw on Hall element mounting groove (61).
10. water flow ratio adjusting valve according to claim 7 is characterized in that described spool (3) processed by copper or plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205026160U CN202371281U (en) | 2011-12-07 | 2011-12-07 | Flow sensing device and water flow rate regulating valve using device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205026160U CN202371281U (en) | 2011-12-07 | 2011-12-07 | Flow sensing device and water flow rate regulating valve using device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202371281U true CN202371281U (en) | 2012-08-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205026160U Expired - Lifetime CN202371281U (en) | 2011-12-07 | 2011-12-07 | Flow sensing device and water flow rate regulating valve using device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202371281U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764209A (en) * | 2015-04-14 | 2015-07-08 | 万家乐热能科技有限公司 | Plate replacing waterway module in fuel gas heating water heater |
| CN107327596A (en) * | 2017-06-27 | 2017-11-07 | 广州市威士丹利智能科技有限公司 | Digital control constant temperature tap |
| CN111350835A (en) * | 2018-12-24 | 2020-06-30 | 浙江润诚智控科技有限公司 | Flow regulating assembly |
-
2011
- 2011-12-07 CN CN2011205026160U patent/CN202371281U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764209A (en) * | 2015-04-14 | 2015-07-08 | 万家乐热能科技有限公司 | Plate replacing waterway module in fuel gas heating water heater |
| CN107327596A (en) * | 2017-06-27 | 2017-11-07 | 广州市威士丹利智能科技有限公司 | Digital control constant temperature tap |
| CN111350835A (en) * | 2018-12-24 | 2020-06-30 | 浙江润诚智控科技有限公司 | Flow regulating assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120808 |