CN2148295Y - Automatic bath water thermostatic device - Google Patents
Automatic bath water thermostatic device Download PDFInfo
- Publication number
- CN2148295Y CN2148295Y CN 93200372 CN93200372U CN2148295Y CN 2148295 Y CN2148295 Y CN 2148295Y CN 93200372 CN93200372 CN 93200372 CN 93200372 U CN93200372 U CN 93200372U CN 2148295 Y CN2148295 Y CN 2148295Y
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- water
- hot
- temperature
- cold
- cold water
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Abstract
The utility model discloses an automatic bath water thermostatic device which knows the temperature of the bath water mainly through a temperature sensitive probe and controls the size of the opening of a hot and cold valve through a control circuit, causing the bath water to keep the state of the constant temperature. The utility model has the advantages of simple structure. The automatic bath water thermostatic device is particularly suitable for the bathrooms of institutions, schools and factories. The utility model not only can save the water but also provides a comfortable and convenient condition for the users.
Description
The utility model relates to a kind of bath water automatic thermostatic device, especially relate to a kind of know by temperature-sensing probe get temperature and control cold and hot valve opening size by control circuit and make its bath water can keep the device of constant temperature.
The hot and cold water in some bathrooms is regulated by user oneself at present, for some reason, for example hydraulic pressure shakiness or user require difference to water temperature, therefore have to regulate one after another the hot and cold water valve, so not only bothered but also wasted water, made troubles to the user.
The purpose of this utility model is exactly the deficiency that overcomes prior art, and a kind of bath water automatic thermostatic device is provided, and it has not only been exempted user itself and has regulated the inconvenience of water temperature, and the bath water of constant temperature can be provided.
The purpose of this utility model realizes by following content, the utility model mainly comprises hot-water line and hot-water valve, cold water pipe and Cold water tap, hot-water line is connected in boiler, the cold water that hot-water valve is arranged on boiler enters on the pipeline, cold water pipe is connected in water source from the beginning, and Cold water tap is arranged on the cold water pipe; A hot and cold water mixing tube, its end is communicated in cold water pipe and hot-water line, its other end is communicated in the insulation water receiver, this water receiver is directly supplied bathroom spray head by the transmission water pipe, the port that connects the insulation water receiver at the hot and cold water mixing tube is provided with a temperature-sensing probe, this temperature-sensing probe identification water temperature, and connect two by control circuit by thyristor and turn to reversible motor, one of one of them driven by motor is connected in the decelerator mechanism of cold valves, and one of another driven by motor is connected in the decelerator mechanism of hot water valve, because temperature-sensing probe identification water temperature can be set to a scope, as 40-43 ℃, therefore, be higher or lower than this temperature range, then can control cold by motor and the decelerator mechanism that control circuit is connected in water temperature, the open amount of hot-water valve; In the insulation water receiver, be provided with the water level limitation device, this of water level limitation device connection is arranged at the switch on the pipeline of the water supply of hot water or cold water's valve, when bath water rose to the qualification position of water level limitation device in the insulation water receiver, trigger switch was closed it, the water supply that turn-offed hot water or cold water's valve this moment, prevented that bath water from overflowing the water receiver from insulation, when making water, when making water level descend qualification position in the water level limitation device, then open switch, at this moment the hot water or cold water continues to supply water.Cold and hot valve adopts sphere shape pipe valve, its Push And Release corner is 90 °, decelerator mechanism is a benchmark with 1400 rev/mins of motor speeds, its gear ratio is 1:9000 to 1:10000, the rotation of electric-motor drive valve is slow like this, and temperature-sensing probe could change the effect that temperature is got in generation just really by adaptive temperature slowly.
The operation principle of bath water automatic thermostatic device of the present utility model is as described below, determine that at first using bath water temperature is a suitable scope, for example 40 ℃～43 ℃, enable temperature-sensing probe like this a scope of discerning water temperature just can be arranged, temperature-sensing probe described here is a kind of thermistor element, through temperature-sensing probe identification water temperature, when water temperature drop to≤40 ℃ the time, trigger one upset, make relay 1J adhesive, and connection hot-water valve, make valve open the large hot water volume gradually, increase gradually, make water temperature rise gradually, when water temperature rises to 42 ℃, through the sensor probe trigger one upset is returned, relay 1J is discharged, at this moment hot-water valve quits work, connect Cold water tap simultaneously, Cold water tap is opened greatly gradually, cool water quantity increases gradually, water temperature descends gradually, when water temperature drops to 40 ℃, trigger one upset, relay 1J adhesive again ... go round and begin again like this, under the bath water temperature condition of guaranteeing to be fit to, cold, hot-water valve is opened greatly gradually, make the output of mixing water increase gradually, but make row that a valve opening maximum (which valve opening maximum is that the temperature according to cold water and hot water determines) is arranged to the end, if the higher Cold water tap at this moment of hot water temperature reaches maximum, at this moment the Cold water supply maximum has collided limit switch 1XK, make hot-water valve adjust water temperature, be subjected to external influence as water temperature, water temperature is risen gradually, trigger two upsets when water temperature rises to 43 ℃, make relay 2J discharge (1J discharged in advance and was in on-state this moment), the connection hot-water valve is electronic, makes the motor reverse rotation, drives hot-water valve, valve opening is reduced gradually, water temperature reduces gradually, when water temperature is reduced to 41 ℃, and trigger two upset relay 2J adhesives, hot-water valve quits work, and cold water and hot water mixing according to a certain percentage at this moment obtains suitable water temperature.Influence as external condition, water temperature is descended gradually, when water temperature drops to 40 ℃, make trigger one by temperature-sensitive, relay 1J adhesive (relay 2J this moment adhesive in advance, be in and connect shape), connect the motor of hot-water valve, motor is rotated in the forward, hot-water valve is big by opening, the hot water amount increases gradually, water temperature is risen gradually, when water temperature rises to 42 ℃, trigger one upset relay 1J is discharged by temperature-sensitive, hot-water valve quits work, and cold water and hot water mixing according to a certain percentage at this moment obtains suitable water temperature.
The appearance that also has a kind of problem is such, and as previously mentioned, the Cold water tap aperture is maximum and stopped work, and the constant of water temperature is to lean on the aperture size of independent hot-water valve to realize.If at this moment the hot water temperature in the boiler descends gradually, the hot water temperature who flows out in boiler so will descend, in this case, and as keeping the constant of bath water temperature, at this moment just need the hot water amount, constantly increase might make at last and hot-water valve aperture maximum make hot water amount's maximum, and bumps 3 limit switch 2XK moving to and fro, hot-water valve is quit work, connect Cold water tap simultaneously, adjust cold water by Cold water tap later on, the size of quantity delivered is come the temperature of constant bath water.
In a word, the no matter appearance of which kind of situation, as long as the hot water temperature in the boiler is not less than the bath water temperature of use, the water temperature that relies on these two hot and cold electrically operated valves to come automatic tuning to be fit to.
Annotate: adhesive during relay 1J≤40 ℃; Discharge in the time of 〉=42 ℃.
Adhesive during relay 2J≤41 ℃; Discharge in the time of 〉=43 ℃.
Above-mentioned trigger is an emitter-coupled trigger, the upset of this trigger is to know by thermistor to get temperature and make resistance change to change the variation of BG1 base potential, the same with common emitter-coupled trigger, this circuit also has two stable states: promptly BG1 is saturated and be first stable state by BG2; BG2 is saturated by BG1 to be second stable.If directly to triangle voltage waveform of base stage input of BG1, when input voltage Vb1 when 0 rises, circuit is in first stable state.But when Vb1 rose among the figure on schedule, BG1 began conducting, begins to have the collector current IC1 of BG1 among the RC1, therefore VC1 begins to descend, and the decline of VC1 all reduces Dw1, Vb2, but the numerical value that originally reduces is little, does not influence the conducting of W1, does not also influence the saturation state of BG2.If Vb1 continues to rise, Vc1 must continue to descend, then BG2 will at first break away from saturated and be in magnifying state, at this moment as long as Vc1 reduces a bit (being that Ic1 increases a bit again) again, be about to make the emitter current of BG2 to reduce significantly, and the magnitude of current that this reduces is far longer than the amount that Ic1 increases, therefore total effect reduces the pressure drop on the Re, the Vbe of BG1 is increased, has so just constituted positive feedback, thereby caused a chain reaction:
↑
BG1 conducting → Icl → Vcl ↓ → Vb2 ↓
↑ ↓
Vbel↑←VRe↓←Ic2↓
Certainly Ic1 can infinitely not rise.When BG1 is saturated, BG2 is after (DW1 in company with by) promptly reaches second stable state, and chain reaction just comes to an end, all processes very high speed, and rise to high level to the unexpected electric low level of Vc2.Later on Vb1 continues to rise, and circuit will keep second stable state constant, descends through triangular apex up to Vb1, and reduces to when neighbouring on schedule again, and circuit again reciprocal chain reaction will take place:
BG1, BG2 break away from saturated Vcl ↑ → Vb2 ↑ → Ic2 ↑
↑ ↓
Icl↓←Vbe↓←VRe↑
The result makes BG1 end rapidly again, and BG2 is saturated rapidly, and BG2 electricity high level is reduced to low level suddenly among the figure, and circuit comes back to first stable state.
The base stage of BG3 is connected to by voltage-stabiliser tube DW2 on the colelctor electrode of BG2, like this when BG2 is saturated, Vc3=0.3V(DW1DW2 voltage stabilizing 6V) DW2 cuts, and BG3 cuts the output of Vc3 high potential, no current in the relay coil, relay discharges; High potential output is arranged when BG2 ends on the contrary, puncture DW2, BG3 saturation conduction, BG3 colelctor electrode have electronegative potential output, and electric current is injected the colelctor electrode relay adhesive of BG3 through relay J by power supply.
Electric circuit characteristic: because three extremely anti-phase couplings are to adopt voltage-stabiliser tube Dw1|Dw2, therefore the antijamming capability of circuit is very strong, and job stability is reliable, because of the breakdown reverse voltage of Dw is 6V, BG2 reliably ended when high like this breakdown reverse voltage had guaranteed that BG1 is saturated, and BG3 reliably ended when BG2 was saturated.We know that near the dynamic electric resistor of voltage-stabiliser tube its voltage stabilizing value is very little, and very little voltage change will cause that very big electric current changes, and therefore do the interpolar coupling with voltage-stabiliser tube, and circuit state turns over very clear-cut, and promptly the contactor performance is good.
Emitter-coupled trigger CALCULATION OF PARAMETERS at different levels:
BG3 selects 3DG12, β=60, output current 30mA; Power supply 12V
Re gets 200 Ω VRe=200 Ω * 1.08mA=0.22V
Ic2 is saturated=(12V-0.3V)/(10.6+0.2K) ≈ 1.08mA
BG2 selects 3DG6, β=50
Ib2＝ (1.08mA)/50 ≈20μA
Ic1 gets 100 μ A
Rc1＝ (12V－（6V＋0.7＋0.22V）)/(Icl) ＝51KΩ
BG1 selects 3DG12, β=100
Vb1＝ (0.7＋0.22V)/(240Ω) ＝3.8mA
B1+Rb2=(12V-0.92V)/(3.8mA) ≈ 2.9K Ω (Rb1 gets 1.2K Ω, and 3Rb2 gets 2K Ω)
Relay is temporarily selected JRX13F type low power relay for use, select rated operational voltage 12V for use, operating current 20mA specification is SRm4,523,037, this relay has only 2 pairs of normally-closed contacts, and need 3 pairs often to open in the circuit, 3 pairs normally closed, and contact attached pressure 400V utilizes this relay to drive the relay work of other model, specification adaptation like this.
Advantage of the present utility model is that it has solved the inconvenient problem of user oneself adjusting water temperature in the bathroom, the automatic constant-temperature of bath water is provided, and it is simple in structure, is specially adapted to the bathroom of office, school, factory, it can not only using water wisely, and provides comfortable condition for the user.
Further describe technology contents of the present utility model below in conjunction with accompanying drawing, wherein:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a circuit block diagram of the present utility model;
Fig. 3 is a circuit diagram of the present utility model;
The emitter-coupled trigger circuit diagram that Fig. 4 uses for the utility model;
The circuit diagram that Fig. 5 is connected with circuit for the employed relay of the utility model;
Fig. 6 is the relevant voltage oscillogram of Fig. 5.
As shown in the figure: the utility model mainly comprises hot-water line 1 and hot-water valve 2, cold water pipe 3 and Cold water tap 4, hot-water line 1 is connected in boiler 5, and the cold water that hot-water valve 2 is arranged on boiler 5 enters on the pipeline 6, cold water pipe 3 is connected in water source W from the beginning, and Cold water tap 4 is arranged on the cold water pipe 3; A hot and cold water mixing tube 7, its end is communicated in cold water pipe 3 and hot-water line 1, its other end is communicated in insulation water receiver 8, this insulation water receiver 8 only illustrates 1 by carrying water pipe 9 directly to offer among some shower nozzle 10(figure of bathroom), the port that connects insulation water receiver 8 at the hot and cold water mixing tube goes into to be provided with a temperature-sensing probe 11, these temperature-sensing probe 11 identification water temperatures, connect two by the thyristor (as shown) that control circuit connected and turn to reversible motor (D1, D2) (not shown), one of one of them driven by motor is connected in the decelerator mechanism (not shown) of cold valves 4, one of another driven by motor is connected in the decelerator mechanism (not shown) of hot water valve 2, in insulation water receiver 8, be provided with water level limitation device 12, this water level limitation device 12 is communicated with one and is arranged on cold, hot-water valve (2,4) switch 13 on the water supply line, according to circumstances also can on water supply line, increase a water pump 14, to increase hydraulic pressure.Described control circuit mainly comprises trigger one and trigger two and the relay 1J that is associated with them and 2J and corresponding limit switch 1XK and 2XK.For being mixed, the hot water or cold water reaches even, taking way is that the pipeline of mixing tube 7 is prolonged, and preferably does crooked shape, flow through like this hot water or cold water that comes in mixing tube 7 through multiple impact, the hot water or cold water is mixed, and temperature-sensing probe just has a correct knowledge to get temperature value.
In foregoing, explained the operation principle of trigger, more existing contents need explanation, as shown in Figure 5, one of Re1 and the Re2 effect in circuit is the effect of playing strong row positive feedback among the figure, circuit is overturn rapidly, another effect is the influence to the temperature difference that will mention following, in actual applications, need a suitable temperature difference, and temperature difference is directly reacted input terminal voltage variation size, inject triangle voltage waveform of input as previously mentioned, as shown in Figure 6, trigger input Vb1 is the circuit upset when 0 rises to E, drops to E ' time circuit up to Vb1 through triangular apex and just moves, the triggering level that does not wait has appearred between E and the E ' like this, this temperature difference size is relevant with Re, and Re is more for a short time to have a narrow range of temperature, otherwise just big more, need a more suitable temperature difference in practice, so Re1, Re2 adjusts to use water temperature difference.The Rb2 effect is that two circuit are successively moved, and the road operating temperature has certain difference in two, and by actual adjustment, the Rb1 effect is a potentiometer of adjusting the serviceability temperature scope.
Claims (6)
1, a kind of bath water automatic thermostatic device is characterized in that it mainly comprises hot-water line and hot-water valve, cold water pipe and Cold water tap, hot-water line is connected in boiler, the cold water that hot-water valve is arranged on boiler enters on the pipeline, and cold water pipe is connected in water source from the beginning, and Cold water tap is arranged on the cold water pipe; A hot and cold water mixing tube, its end is communicated in cold water pipe and hot-water line, its other end is communicated in the insulation water receiver, this insulation water receiver is directly supplied with the shower nozzle in bathroom by water-supply-pipe, the port that connects the insulation water receiver at the hot and cold water mixing tube is provided with a temperature-sensing probe, this temperature-sensing probe identification water temperature, and connect in two motors by thyristor by control circuit, one of one of them driven by motor is connected in the decelerator mechanism of cold valves, and one of another motor drives is connected in the decelerator mechanism of hot water valve; Be provided with the water level limitation device in insulation in the water receiver, this water level limitation device is communicated with a switch on the water supply line that hot water or cold water's valve is set.
2, bath water automatic thermostatic device according to claim 1 is characterized in that described control circuit mainly comprises trigger one and trigger two and relay 1J and 2J and corresponding limit switch 1XK and the 2XK relevant with them.
3, bath water automatic thermostatic device according to claim 1, it is characterized in that turning to of described motor is reversible, described hot water or cold water's valve is the sphere tee section, the Push And Release corner is 90 °, decelerator mechanism is a benchmark with 1400 rev/mins of motor speeds, and its gear ratio is 1:9000 to 1:10000.
4, bath water automatic thermostatic device according to claim 1 is characterized in that can being provided with a water pump on water supply line.
5, bath water automatic thermostatic device according to claim 1 is characterized in that the hot and cold water mixing tube is preferably made crooked shape.
6, bath water automatic thermostatic device according to claim 1 is characterized in that described temperature-sensing probe is a thermistor element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93200372 CN2148295Y (en) | 1993-01-13 | 1993-01-13 | Automatic bath water thermostatic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93200372 CN2148295Y (en) | 1993-01-13 | 1993-01-13 | Automatic bath water thermostatic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2148295Y true CN2148295Y (en) | 1993-12-01 |
Family
ID=33785156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93200372 Expired - Fee Related CN2148295Y (en) | 1993-01-13 | 1993-01-13 | Automatic bath water thermostatic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2148295Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103574911A (en) * | 2013-10-30 | 2014-02-12 | 东华大学 | Automatic water temperature and flow adjusting system with delayed memory characteristic |
| CN108361995A (en) * | 2018-02-26 | 2018-08-03 | 宝鸡文理学院 | Industrial boiler furnace temperature control system |
-
1993
- 1993-01-13 CN CN 93200372 patent/CN2148295Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103574911A (en) * | 2013-10-30 | 2014-02-12 | 东华大学 | Automatic water temperature and flow adjusting system with delayed memory characteristic |
| CN103574911B (en) * | 2013-10-30 | 2015-11-18 | 东华大学 | A kind of water temperature and flow automatic regulating system with time delay memory characteristic |
| CN108361995A (en) * | 2018-02-26 | 2018-08-03 | 宝鸡文理学院 | Industrial boiler furnace temperature control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |