CN104613224A - Electronic temperature control valve - Google Patents
Electronic temperature control valve Download PDFInfo
- Publication number
- CN104613224A CN104613224A CN201510067197.5A CN201510067197A CN104613224A CN 104613224 A CN104613224 A CN 104613224A CN 201510067197 A CN201510067197 A CN 201510067197A CN 104613224 A CN104613224 A CN 104613224A
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- Prior art keywords
- valve
- temperature control
- driven gear
- control valve
- electronic temperature
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/002—Actuating devices; Operating means; Releasing devices actuated by temperature variation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
- Temperature-Responsive Valves (AREA)
Abstract
The invention discloses an electronic temperature control valve which comprises a valve body, a valve element, a valve rod, a driven gear, a locking device, a driving gear and a power machine. The valve body is provided with a fluid pipe opening. The valve element is arranged in the valve body. The flow of the fluid pipe opening is controlled through the rotating angle of the valve element. The valve rod is connected to the valve element. A gear sleeve of the driven gear is arranged on the valve rod in a sleeving mode to be limited in the periphery direction and guided in the axial direction. A converting stroke is achieved in the axial direction. The locking device is assembled on the gear sleeve and is used for locking the driven gear after the driven gear is adjusted to a preset position in the radial direction, and unlocking is carried out during adjusting. The driving gear can be engaged and disengaged with the driven gear in a converting stroke. The power machine drives the driving gear in an output mode generally through the electronic temperature control valve, a motor and a speed reducing mechanism thereof. The electronic temperature control valve is compact in structure and good in reliability.
Description
Technical field
The present invention relates to a kind of electronic temperature control valve.
Background technique
Thermostat valve full name heat-operated valve, it is the main regulating equipment of Flow-rate adjustment in the application such as heating system, its basic principle: by controlling heat exchanger, air-conditioner set, household water heater or other use heat, cool equipment, once heat (cold) matchmaker inlet flow rate, to reach control apparatus outlet temperature.When load changes, by changing valve opening degree (abbreviation aperture) adjust flux, to eliminate the impact that fluctuation of load causes, make temperature return to setting value.
Represented by said structure is the basic principle of autoamtic temperature controlling valve, temperature controls mainly to adopt Non-follow control before this, namely by a triple valve (two enter goes out), rotational valve core, so as to controlling the aperture of two ingress interfaces, thus control outlet temperature, because this control mode is relatively backward, be difficult to control outlet temperature accurately, being eliminated slowly.
The thermostat valve of automatic control mainly contains two classes, and one is self-supporting temperature-sensing valve, and another kind is electric temperature control valve, and a classification of electric temperature control valve is electronic temperature control valve.Electronic temperature control valve base is in closed loop control, and collection two simultaneously enters one and goes out the temperature of three some positions or gather outlet temperature separately, by complex calculations, controls the rotation angle of spool, thus controls the outlet temperature of thermostat valve.Based on the heat-operated valve control system more complicated of this principle, and when running into such as power down mode, be converted to MANUAL CONTROL mode more difficult.
The control of current electronic temperature control valve to valve opening has come mainly through train of gearings, see Chinese patent literature CN101788079B, it adopts the complicated accurate control of epicyclic train realization to spool aperture, can be found out the General Principle of current thermostat valve by its structure, complicated structure, transmission link is many, if be converted to manually, by the constraint of transmission link transmission efficiency, and drive motor is inducted the stagnant impact of resistance, and the phenomenon of operation clamping stagnation clearly.
Conversion reason about electronic temperature control valve manual mode and auto state is also shown in Chinese patent literature CN201014018Y, for this reason, it further disclosed a kind of temperature-sensing valve control device, basic principle is, by disconnecting the Transmitted chains of motor and valve, eliminate Transmitted chains part to the impact of manual mode so as to realizing.Specifically, adopt a kind of mesomerism gear driven by so-called interrupted key, and be respectively equipped with resetting structure in this mesomerism gear side and interrupted key side, manually part separately needs extra setting operation mechanism.
Temperature-sensing valve control device structure described in patent documentation CN201014018Y is relatively complicated, be furnished with two resetting structures for disconnecting with the structure of continued access, and need to apply bias voltage, reset link itself easily lost efficacy, and possess two reset links, failure probability can be increased further.Wherein, the drive part of operating device and mesomerism gear belongs to two unit, and structure is relatively complicated.In addition, its state disconnected also cannot keep automatically, operation inconvenience.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of electronic temperature control valve of compact structure, to improve the reliability that it uses.
The present invention is by the following technical solutions:
A kind of electronic temperature control valve, comprising:
Valve body, is furnished with the fluid mouth of pipe;
Spool, is arranged in described valve body, by the flow of the controlling angle fluid mouth of pipe of this spool;
Valve rod, is engaged in spool;
Driven gear, the geared sleeve of this driven gear is sleeved on valve rod, and is retrained by circumference and axially directed, axially has conversion stroke;
Locking Device, is fitted on geared sleeve, for after driven gear radial direction adjusts to precalculated position by driven gear locking, and adjust time unlock;
Driving gear, in conversion stroke, can engage with described driven gear and depart from and engage;
Power engine, general employing electronic temperature control valve motor and reducing gear thereof, export and drive described driving gear.
As can be seen from said structure, according to the present invention, adopt gear transmission to form the connection of power engine and valve rod, wherein driven gear is as the input gear of valve rod, and this input gear and valve rod adopt sliding sleeve to coordinate, and forms circumference constraint with transmitting torque; Axially guiding, thus axially can carry out position adjustment.Configuration lock locking apparatus, driven gear is locked after adjusting to the right place, with the technical requirements of satisfied engagement or disengagement, based on this, when electronic temperature control valve is in auto state, maintenance driving gear engages with driven gear, and when manual mode, leading unblock, throws off driven gear and driving gear and then is about to driven gear and lock, and operates very easy.And due to transmission link fewer, thus better reliability, overall structural compactness is also very good.The reliability worked when wherein Locking Device is for ensureing engagement or disengaged condition.
Above-mentioned electronic temperature control valve, in a preferred embodiment, be simplified structure, described geared sleeve has a radial hole, correspondingly, described Locking Device is matched with described radial hole and is pressed on from the side on valve rod.
Further, be simplified structure, on the bus that valve rod is compressed by Locking Device, have the first groove and the second groove;
Wherein the first groove is for locking when driving gear and driven gear engagement, and the second groove departs from locking when engaging for driving gear and driven gear.
In certain embodiments, described Locking Device comprises:
Hard ball, for being pressed on the parts of valve rod side;
Returnning spring, is placed in described radial hole, and one end holds hard ball in order to provide the power of compressing; And
Jackscrew, be against Returnning spring the other end and with radial hole screw-thread fit;
Correspondingly, described first groove and the second groove are ball-and-socket.
Based on aforesaid structure, compact overall structure, advantage of lower cost.
Further, be also included in the conversion handwheel that axial and described driven gear is connected, to improve the friendly of operation.
Further, be simplified structure, described driving gear is 5:1 ~ 8:1 with the transmission ratio of driven gear.
In a preferred embodiment, for avoiding repeating adjustment, the electronic control part of this electronic temperature control valve comprises:
Temperature transducer, is arranged on the water outlet in the fluid mouth of pipe, goes out liquid temp for water outlet of sampling;
Controller, input connects described temperature transducer, and exports the described power engine of connection, to drive spool action;
Human-computer interaction device, is connected to described controller, for inputting target temperature;
Memory, is connected to controller, for the current location of spool of sampling, during to reopen after electronic temperature control valve cuts out, according to the current location of the spool sampled, controls spool and runs to this current location.
Preferably, described memory comprises:
Hall transducer, is fixedly installed;
Magnet, is arranged on driven gear or is driven by driven gear and produce on the parts of rotation, and the mounting plane of magnet is parallel with the mounting plane of Hall transducer, arrange structure simple, and precision comparison is high.
For convenience of using, relative with valve rod, at the other end of valve body, be configured to outlet pipe, outlet pipe overcoat switch handwheel, for turning off outlet pipe;
Wherein, switch handwheel is driven in spool, and on this switch handwheel, be provided with magnet;
Correspondingly, valve body is provided with described Hall transducer.
For improving the smoothness used, the part that described valve rod coordinates with geared sleeve is provided with two axle collars, is just provided with an O type circle between the axle collar.
Accompanying drawing explanation
Fig. 1 cuts structural representation open according to the lateral parts of a kind of electronic temperature control valve of the present invention.
Fig. 2 is the top surface structure schematic diagram corresponding to Fig. 1.
Fig. 3 is the Facad structure schematic diagram corresponding to Fig. 1.
Fig. 4 is electronic temperature control valve inner side structural representation in an embodiment.
Fig. 5 is the Facad structure schematic diagram corresponding to Fig. 4.
Fig. 6 is the inner Facad structure schematic diagram of electronic temperature control valve in another embodiment.
In figure: 1. outlet pipe, 2. switch handwheel, 3. straight pin, 4. magnet, 5. Hall transducer, 6. control circuit board, 7. valve casing, 8. valve body, 9.O type circle, 10. changes handwheel, 11. connector lugs.
12. rear end covers, 13. cross recess coiled hair automatic screws, 14. snap rings, 15. thermometric bars, 16. water outlets, 17.O type circle, 18. water intakes, 19. seal rings, 20. control panels.
21. buttons, 22.O type circle, 23. lids, 24. electric power connection lines, 25. axle collars, 26.O type circle, at the bottom of 27. holes, 28. cross recess coiled hair self tapping screws, 29. guide holes.
30.O type circle, 31. temperature transducers, 32. sealing gaskets, 33. spools, 34. gearwheels, 35. geared sleeves, 36. restraining grooves, 37. Returnning springs, 38. jackscrews, 39. hard balls, 40. stators.
41. gland nuts, 42.O type circle, 43. small gears, 44. flat gaskets, 45. reducing motors, 46. pilot holes, 47. gland nuts, 48.O type circle.
Embodiment
For making the effectiveness of the clearer understanding of those skilled in the art inventive principle of the present invention and concrete means.Technological means, creation characteristic that the present invention realizes, reach object and effect is easy to understand, below in conjunction with concrete accompanying drawing, set forth the present invention further.
With reference to Figure of description 1-3, for being furnished with the state of valve casing 7, because electronic temperature control valve is generally used in indoor, aesthetic property is also an important technical requirements.For valve body 8 etc., in order to ensure technology capability, the requirement of its construction profile demand fulfillment processing technology, thus aesthetic property is generally poor, is mostly square-folded structure.Configuration valve casing 7 is conducive to it to be applied, and easily on valve casing 8, arranges control panel, the parts that button 21 as shown in Figure 3 depends on.
Electronic temperature control valve comprises mechanical part and electric part (also can become electronic section or electronic control part), according to preferred embodiment, see the electronic temperature control valve shown in Figure of description 1-5, first explains with regard to the mechanical part of electronic temperature control valve.
For electronic temperature control valve, it must comprise valve body 8, and valve body 8 is generally furnished with valve pocket, then matching valve cavity configuration, and valve body wall has valve opening, because valve opening generally wants pipe arrangement, thus general also referred to as the fluid mouth of pipe or interface.
Valve pocket is not generally simple cylinder inner chamber, needs according to concrete flow passage structure, design example as valve opening groove and spool land, the wherein wall valve opening hole in space that formed of valve opening groove.Concrete structure about valve body belongs to the conventional structure of related domain, does not repeat them here.
The realization of valve function must depend on spool 33, and as shown in Figure 1, spool 33 is arranged in the valve pocket of described valve body 8 formation, and forms of motion mainly contains two kinds, and one is straight line motion (also crying mobile), and such as plunger valve, one is rotated, such as ball valve.Electronic temperature control valve generally adopts to rotate and controls, and spool 33 relies at the valve pocket of valve body 8 corner rotating and control spool 33 in other words, so as to controlling the flow of each fluid mouth of pipe, thus carries out temperature control.
Valve rod, is engaged in spool 33, Fig. 3, and valve rod is the part having restraining groove 36, coordinates with spool 33.
Generally speaking, valve rod is valve vitals, for transmission, Shang Jie actuator or handle, below directly band movable valve plug move or rotate, to realize valve switch or regulating action.
Valve rod not still movement parts, stressed member in valve opening and closing process, and be Sealing.Meanwhile, it is subject to impact and the corrosion of medium, also produces with filler and rubs.Therefore, when selector valve bar material, must ensure that it has enough intensity, good impact toughness, resistance to marring, corrosion resistance at an established temperature.Valve rod is easily damaged parts, should also be noted that mechanical processing characteristic and the heat treatment performance of material when selecting.
In the structure shown in Fig. 3, be provided with a gearwheel 34, carry out actuate valve stem with it, thus drive spool 33, assign to say for power part, this gearwheel 34 forms driven gear.
Should be appreciated that herein, gearwheel 34 and small gear 43 are conceptually relative, and in the construction illustrated, gearwheel 34 and small gear 43 are also adopt size configure because there is the technical requirements on velocity ratio.Should be appreciated that because prime have employed reducing motor 45, when the output of reducing motor 45 can meet the control needs of spool 33, be perhaps the transmission of a kind of 1:1 between gearwheel 34 and small gear 43, or even be less than the transmission of 1:1.
And then as shown in figs. 1 and 4, the geared sleeve 35 as the gearwheel 34 of driven gear is sleeved on valve rod, and to be retrained by circumference and axially directed, axially there is conversion stroke.
Circumference retrains and is that geared sleeve 35 adopts positive (also referred to as Profile Connection with valve rod by axially directed a kind of structure, refer to mechanical design handbook or textbook), if there is matching gap, then would not form axial constraint, make geared sleeve 35 can be axially freely movable.
Positive structure is relatively simple, but easily produces bias, further, can adopt the valve rod of multi-arris body structure and the geared sleeve 35 with multi-arris body inner face, effectively can overcome bias, but difficulty of processing be relatively large.
In certain embodiments, adopt flat key to connect, a groove opened by the keyway on the endoporus of geared sleeve 35, and flat key can form circumference constraint, axially then forming guiding.
Based on aforesaid structure, gearwheel 34 possesses the adjustment degrees of freedom in axis.But should be appreciated that the existence of gearwheel 34 uses gear-driven to ensure, therefore, it at least possesses firm structure when engagement.Therefore, configuration lock locking apparatus, this Locking Device is fitted on geared sleeve 35, for after driven gear radial direction adjusts to precalculated position by driven gear locking, and unlock when adjusting, after adjusting to the right place, then lock, thus when can ensure in working order, gearwheel 34 can possess good operating mode.
Configure the driving gear coordinated with gearwheel so again, small gear 43 as illustrated in the drawing, this driving gear, in conversion stroke, can engage with described driven gear and depart from and engage;
What provide driving force is power engine, exports and drives described driving gear.
According to said structure, when gearwheel 34 engages with small gear 43, electronic temperature control valve enters the state automatically controlled, and user can set such as water-exit temperature as required, and power engine drives spool to turn to match settings water-exit temperature according to water-exit temperature.
In time having a power failure, or as required and adopt Non-follow control time, unlock, gearwheel 34 adjusted to the position of throwing off with small gear 43, relock, then just can manually-operable gearwheel 34.
When not needing Non-follow control, or need to convert to when automatically controlling, adjustment gearwheel 34 resets.
About Locking Device, can be Non-follow control, also can adopt and control voluntarily, generally Locking Device is arranged on the side of geared sleeve 35, such as, adopts spring pin, can manually pin be pulled out, trip spring pin, utilizes automatically reseting of spring pin again to hold on valve rod.
In certain embodiments, due to manually and be of little use, side jackscrew structure can be adopted, directly by locked for geared sleeve 35 on valve rod, when needs manually adjust, use screw-driver to unclamp jackscrew, the adjustment degrees of freedom of geared sleeve 35 can be obtained.
Axially Locking Device can also be set, such as lock tube or expansion set in certain embodiments, realize locking by axial tightening, but adopt expansion set construction cost higher.
In a preferred embodiment, adopt the side keying structure of relative inexpensiveness, described geared sleeve 35 has a radial hole, and correspondingly, described Locking Device is matched with described radial hole and is pressed on from the side on valve rod.
Directly compress the damage easily producing valve rod, and reliability is not good, in a preferred embodiment, on the bus that valve rod is compressed by Locking Device, has the first groove and the second groove, restraining groove 36 as shown in Figure 4.
Restraining groove 36 can adopt ball-and-socket as shown in the figure, also can adopt the groove of such as counterbore form, in other words facade groove, and when adopting the latter, the Locking Device mated can adopt spring pin, stretching of Non-follow control spring pin.
When adopting ball-and-socket, can guide face during sphere, thus, also spring pin can be adopted to realize controlling voluntarily, and the pressure holding end of spring pin adopts bulb, utilizes leading of sphere, certain pulling force can be utilized to drive gearwheel 34, just can be derived, and when arriving next groove, utilize the reset of spring to realize relocking.
The position configuration of two grooves is as follows:
Wherein the first groove is for locking when driving gear and driven gear engagement, and the second groove departs from locking when engaging for driving gear and driven gear.
About " bus ", for solid of rotation, bus is the concept determined, for the valve rod of the aforementioned such as multi-arris body structure that may adopt, can use the concept of bus, represents in its same axial line on valve rod side.
In a preferred embodiment, in such as, structure shown in Fig. 4, described Locking Device comprises:
Hard ball 39, for being pressed on the parts of valve rod side;
Returnning spring 37, is placed in described radial hole, and one end holds hard ball 39 in order to provide the power of compressing; And
Jackscrew 38, be against Returnning spring 37 the other end and with radial hole screw-thread fit;
Correspondingly, described first groove and the second groove are ball-and-socket.
Ball-and-socket just has self-steering effect, and the position in the diagram, pull down geared sleeve 35, when pulling force acquires a certain degree, overcome the thrust of Returnning spring 37, hard ball 39 departs from the spacing of restraining groove 36 and deviates from from restraining groove 36.
Then continue to go downwards to next restraining groove 36, hard ball 39 falls into wherein can hear sound, shows to put in place.
About the control that puts in place, can also Stroke Control be adopted, such as, at the up stop of geared sleeve 35, restraining groove 36 is above set, and at the descending stop of geared sleeve 35, restraining groove 36 is below set, control to get up to be more prone to.
Wherein, in Fig. 4, Cross Recess Head Screw 28, for adjusting the stroke of geared sleeve 35, has clearer expression in FIG, and the degree of depth screwed in by adjustment Cross Recess Head Screw 28, can adjust the stroke of geared sleeve 35.
In aforesaid content, there is the description about Locking Device, with Stroke Control not contradiction, in certain embodiments, need to coordinate Stroke Control and lock position, such as, when using hard ball 39 to realize locking, the dynamics of locking is lower, so effectively can provide additional locking power by Stroke Control, realize locking accurately.
Stroke Control as previously mentioned, main employing stop controls, the shaft shoulder of such as shaft hole matching, in certain embodiments, a stop of stroke adopts the shaft shoulder, and another stop adopts Cross Recess Head Screw 28 as shown in Figure 4, utilizes its screw head to carry out spacing, himself also has length-adjustable effect, realizes Stroke Control.
As shown in the lower part of Figure 1, be also included in the conversion handwheel 10 that axial and described driven gear is connected, the rotation of gear shaft (being geared sleeve in figure) is not easy to control, and also unsightly, for gear shaft configures a handwheel, the conversion handwheel 10 namely shown in figure, operating like this will be very convenient.
Handwheel adopts shell construction, can adopt cylindrical surface structure, equal the diameter increasing gear shaft, than being easier to force.
Shell construction can also be made abnormally-structured, axially projecting direction produce different type systems, such as, can make protruding structure, be used in reference to such as certain special position, can be specifically the preferably temperature adjustment position of recommending.
Shell construction possesses certain inner chamber, time outside the valve casing 7 of gear shaft being drawn electronic temperature control valve, can make up its apparent deficiency, represent the inside of conversion handwheel 10 shown in the figure with the linkage structure of gear shaft by housing.
As illustrated in Figures 5 and 6, described driving gear is 5:1 ~ 8:1 with the transmission ratio of driven gear, the small gear 43 thus shown in pie graph and gearwheel 34, thus obtains good velocity ratio, accurately to control water outlet water temperature.
As previously mentioned, in order to make up the inaesthetic problem of valve body 8 profile, introduce valve casing 7, valve casing 7 can also such as, as the assembly foundation of electronic section, control panel, as shown in Figure 1, the part that control panel is positioned at valve casing 7 inside is circuit board, and the control circuit board 6 namely shown in figure, is positioned at the part outside valve casing 7, form operation panel, as shown in Figure 3.
In figure, operation panel is furnished with display screen, for display-object temperature or Current Temperatures, respectively there is 21, one, a button left and right for upper temperature regulating, one for lower temperature regulating, the temperature produced is target temperature.
Electronic section below with regard to electronic temperature control valve is made an explanation, be to be understood that, electronic temperature control valve must comprise electronic section or electric part, thus, as claim 1 describes, when essential core embodies the improvement to mechanical structure, the electronic section that the solution for technical problem there is no impact is implied open, and does not form required content.
The electronic control part of this electronic temperature control valve comprises:
Temperature transducer 31, be positioned at the middle and upper part of Fig. 4, be arranged on the water outlet 1 in the fluid mouth of pipe, go out liquid temp for water outlet 1 of sampling, its thermometric bar 15 probes into water outlet 1, radially across the wall of water outlet 1, then wire is drawn in sealing-in, concrete structure can be shown in Figure 4 structure, owing to belonging to conventional configuration, do not repeat them here.
Controller, input connects described temperature transducer 31, and exports the described power engine of connection, to drive spool 33 action, driving the action of spool 33 can be the closed loop control responding outlet temperature, also can be the target control that response subordinate human-computer interaction device artificially inputs.
Because about human-computer interaction device, be connected to described controller, for inputting target temperature
In a preferred embodiment, configuration memory, is connected to controller, for the current location of spool 33 of sampling, during to reopen after electronic temperature control valve cuts out, according to the current location of the spool 33 sampled, controls spool 33 and runs to this current location.
Note, memory here does not represent himself can be remembered, but is sampled the current location of spool, send controller to, have controller to carry out processing or pass to storage to store, when reopening, controller calls the driving that spool 33 is carried out in the current location of depositing.
So as sampling, mainly to the sampling of valve opening, in certain embodiments, potentiometer can be adopted to carry out the sampling of valve core valve stem rotation angle, output corner between potentiometer, thus can be sent to controller and process.
In certain embodiments, traffic sampling can be carried out to such as hot-water line, traffic sampling be carried out to cold water pipe simultaneously, carry out flowrate proportioning, form data memory.
In a preferred embodiment, described memory comprises:
Hall transducer 5, is fixedly installed;
Magnet 4, is arranged on driven gear or is driven by driven gear and produce on the parts of rotation, and the mounting plane of magnet 4 is parallel with the mounting plane of Hall transducer 5.
Hall transducer is a kind of magnetic field sensor made according to Hall effect.Hall effect is the one of magnetoelectric effect, and this phenomenon is that Hall (A.H.Hall, 1855-1938) found in 1879 when studying the conductive mechanism of metal.
Have a Hall semiconductor chip in magnetic field, steady current I passes through this sheet from A to B.Under the effect of Lorentz force, the electronic current of I, offseting to one side by during Hall semiconductor, makes this sheet produce potential difference in the cd direction, Here it is so-called Hall voltage.
Hall voltage changes with the change of magnetic intensity, and magnetic field is stronger, and voltage is higher, and magnetic field is more weak, and voltage is lower.
Hall voltage value is very little, usually only has several millivolt, but the amplifier in intergrated circuit amplifies, and this voltage amplification just can be made to being enough to export stronger signal.If make Hall integrated circuit play sensing effect, the method for needs machinery changes magnetic intensity.
Because spool 33 is controlled parts, valve body 7 is exactly fixing parts comparatively speaking, and the parts be connected with spool 33 are inevitable also be movable parts, so such as Hall transducer can be arranged on spool 33 or associated and on dynamic parts.
In addition, about key element conversion, magnet 4 can be arranged on spool 33 or associated and on dynamic parts as the part of activity, and Hall transducer is fixed setting, such as, be arranged on valve body 8 or valve casing 7.
In the construction shown in fig. 1, relative with valve rod, at the other end of valve body 8, be configured to outlet pipe 1, outlet pipe 1 overcoat switch handwheel 2, for turning off outlet pipe 1;
Wherein, switch handwheel 2 is driven in spool 33, and on this switch handwheel 2, be provided with magnet 4;
Correspondingly, valve body 8 is provided with described Hall transducer 5.
In said structure, for avoiding interfering, by the diverse location of some component spread in a linkage structure, avoid mutually harassing, especially, the such as structure of Fig. 1 middle and lower part, the possibility that there is irony device is larger, avoids producing harmful effect to Hall transducer 5.
On the top of Fig. 1, switch handwheel 2, for the shutoff of outlet pipe, in other words under the spool condition mixing up water temperature, can turn off separately through a valve, meets water demand when such as having a bath, and need not turn off frequently.
Time having no progeny and open in pass, utilize memory, can automatically control to find position accurately.
In some preferred embodiments, the part that described valve rod coordinates with geared sleeve 35 is provided with two axle collars 25, is just provided with an O type circle 26 between the axle collar 25.Simple face coordinates, and rubbing surface is larger, and the operation of conversion handwheel 10 has some setbacks, and adopts the axle collar 25 as shown in the lower part of Figure 1, both meets the cooperation of conversion handwheel, also reduces area of friction surface, can ensure the smoothness operated.
Claims (10)
1. an electronic temperature control valve, is characterized in that, comprising:
Valve body (8), is furnished with the fluid mouth of pipe;
Spool (33), is arranged in described valve body (8), by the flow of the controlling angle fluid mouth of pipe of this spool (33);
Valve rod, is engaged in spool (33);
Driven gear, the geared sleeve (35) of this driven gear is sleeved on valve rod, and is retrained by circumference and axially directed, axially has conversion stroke;
Locking Device, is fitted on geared sleeve (35), for after driven gear radial direction adjusts to precalculated position by driven gear locking, and adjust time unlock;
Driving gear, in conversion stroke, can engage with described driven gear or depart from and engage;
Power engine, exports and drives described driving gear.
2. electronic temperature control valve according to claim 1, is characterized in that, described geared sleeve (35) has a radial hole, and correspondingly, described Locking Device is matched with described radial hole and is pressed on from the side on valve rod.
3. electronic temperature control valve according to claim 2, is characterized in that, on the bus that valve rod is compressed by Locking Device, has the first groove and the second groove;
Wherein the first groove is for locking when driving gear and driven gear engagement, and the second groove departs from locking when engaging for driving gear and driven gear.
4. electronic temperature control valve according to claim 3, is characterized in that, described Locking Device comprises:
Hard ball (39), for being pressed on the parts of valve rod side;
Returnning spring (37), is placed in described radial hole, and one end holds hard ball (39) in order to provide the power of compressing; And
Jackscrew (38), be against Returnning spring (37) the other end and with radial hole screw-thread fit;
Correspondingly, described first groove and the second groove are ball-and-socket.
5., according to the arbitrary described electronic temperature control valve of Claims 1-4, it is characterized in that, be also included in the conversion handwheel (10) that axial and described driven gear is connected.
6. according to the arbitrary described electronic temperature control valve of Claims 1-4, it is characterized in that, described driving gear is 5:1 ~ 8:1 with the transmission ratio of driven gear.
7., according to the arbitrary described electronic temperature control valve of Claims 1-4, it is characterized in that, the electronic control part of this electronic temperature control valve comprises:
Temperature transducer (31), is arranged on the water outlet (1) in the fluid mouth of pipe, goes out liquid temp for water outlet of sampling (1);
Controller, input connects described temperature transducer (31), and exports the described power engine of connection, to drive spool (33) action;
Human-computer interaction device, is connected to described controller, for inputting target temperature;
Memory, is connected to controller, for the current location of spool of sampling (33), during to reopen after electronic temperature control valve cuts out, according to the current location of the spool (33) sampled, controls spool (33) and runs to this current location.
8. electronic temperature control valve according to claim 7, is characterized in that, described memory comprises:
Hall transducer (5), is fixedly installed;
Magnet (4), is arranged on driven gear or is driven by driven gear and produce on the parts of rotation, and the mounting plane of magnet (4) is parallel with the mounting plane of Hall transducer (5).
9. electronic temperature control valve according to claim 8, is characterized in that, relative with valve rod, at the other end of valve body (8), is configured to outlet pipe (1), outlet pipe (1) overcoat switch handwheel (2), for turning off outlet pipe (1);
Wherein, switch handwheel (2) is driven in spool (33), and on this switch handwheel (2), be provided with magnet (4);
Correspondingly, valve body (8) is provided with described Hall transducer (5).
10., according to the arbitrary described electronic temperature control valve of Claims 1-4, it is characterized in that, the part that described valve rod coordinates with geared sleeve (35) is provided with two axle collars (25), is just provided with an O type circle (26) between the axle collar (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5169121A (en) * | 1990-12-24 | 1992-12-08 | Mitsubishi Electronics America, Inc. | Damper control mechanism |
| CN201014018Y (en) * | 2007-03-15 | 2008-01-30 | 金成官 | Temperature-sensing valve control device |
| CN101629633A (en) * | 2009-06-15 | 2010-01-20 | 呼和浩特铁路局科研所 | Manual and automatic integrated passenger train water-feeding valve |
| CN101788079A (en) * | 2010-03-09 | 2010-07-28 | 广东联塑科技实业有限公司 | Method for controlling opening of rotating switch of temperature control valve |
| CN203532931U (en) * | 2013-08-21 | 2014-04-09 | 浙江汉威阀门制造有限公司 | Speed changer in valve handle drive mode |
| CN204493862U (en) * | 2015-02-10 | 2015-07-22 | 江西南洋电子科技有限公司 | Electronic temperature control valve |
-
2015
- 2015-02-10 CN CN201510067197.5A patent/CN104613224B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5169121A (en) * | 1990-12-24 | 1992-12-08 | Mitsubishi Electronics America, Inc. | Damper control mechanism |
| CN201014018Y (en) * | 2007-03-15 | 2008-01-30 | 金成官 | Temperature-sensing valve control device |
| CN101629633A (en) * | 2009-06-15 | 2010-01-20 | 呼和浩特铁路局科研所 | Manual and automatic integrated passenger train water-feeding valve |
| CN101788079A (en) * | 2010-03-09 | 2010-07-28 | 广东联塑科技实业有限公司 | Method for controlling opening of rotating switch of temperature control valve |
| CN203532931U (en) * | 2013-08-21 | 2014-04-09 | 浙江汉威阀门制造有限公司 | Speed changer in valve handle drive mode |
| CN204493862U (en) * | 2015-02-10 | 2015-07-22 | 江西南洋电子科技有限公司 | Electronic temperature control valve |
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| CN104613224B (en) | 2017-09-15 |
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Effective date of registration: 20221025 Address after: 310000 Station 842, 8th Floor, Building B, No.958 Dayuan Road, Qingshanhu Street, Lin'an District, Hangzhou, Zhejiang Patentee after: Hangzhou Hengchang Intelligent Control Technology Co.,Ltd. Address before: 253011 13-1-501, Wuhuan Manor, Qingnian Road, Decheng District, Dezhou City, Shandong Province Patentee before: Jia Aodong |
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