CN1068422A - Temperture teller - Google Patents
Temperture teller Download PDFInfo
- Publication number
- CN1068422A CN1068422A CN 92109383 CN92109383A CN1068422A CN 1068422 A CN1068422 A CN 1068422A CN 92109383 CN92109383 CN 92109383 CN 92109383 A CN92109383 A CN 92109383A CN 1068422 A CN1068422 A CN 1068422A
- Authority
- CN
- China
- Prior art keywords
- temperture
- teller
- temperature
- circuit
- temperature sensor
- 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.)
- Pending
Links
Images
Abstract
The present invention is a kind of temperture teller, it comprises housing, places by the warm container part of newspaper, and newspaper circuit temperature device etc. is characterized in that: a temp sensor device 5 is arranged, sensor 5 is positioned at temperture teller center upper portion place, temperture teller circuit arrangement 6 is provided with power switch 8, potentiometer 10, loudspeaker 9, double-point double-throw switch 17 etc. in temperture teller inside on the temperture teller, this temperture teller manufacture craft is simple, volume is little, response speed is fast, and low price has accurate, sensitive, steady operation and other merits.
Description
Many infants are fed by foods such as milk or milk powder, powered milk substitutes, have in addition promptly feed from birth by milk or milk powder, powered milk substitute.Though some infant's breast-feedings often also will be added milk, milk powder etc.Modern medicine study thinks that milk is good infant food, be three one full year of life with the most important protein food that contains of interior infant, after three one full year of life as economic the permission, should continue to use.
The method of using in the past generally is milk to be boiled the back or milk powder, powered milk substitute washed again boil open (following only be example with milk) with hot water, then milk is poured in the feeding bottle, treats that milk cools down gradually.Nursing person will repeatedly touch feeding bottle therebetween, estimate the temperature of milk, even attempt personally, think to feed the infant time until nursing person, begin to suck to the infant, this method is not only inconvenient, and everyone temperature of estimating to suckle is correct not to the utmost, and the milk situation overheated or that cooled off of feeding the infant among hasty exists.Milk heat the infant suck very uncomfortablely, may cause oral cavity, esophagus to scald.The milk cold may cause infantile diarrhea, indigestion, hinder infantile health.
Purpose of the present invention: infant's nursing for convenience, in order to make the cool heat seal of infants suitable, the satisfactory milk of temperature comprises milk powder, powered milk substitute punching out, meal soup, drinking-water etc., and the inventor has designed a kind of temperture teller, can observe and predict the temperature of milk etc. in the feeding bottle.
For achieving the above object, temperture teller mainly comprises feeding bottle standing groove, temp sensor device, circuit arrangement, power supply (battery case), switch turn-knob, loudspeaker etc.The box of temperture teller outward appearance or other shape square as one.Wherein said feeding bottle standing groove is positioned at the temperture teller top, concavity, and the bottom is a stainless steel substrates, feeding bottle will be placed in the depression of feeding bottle standing groove.Described temp sensor device mainly is made up of temperature sensor element, as thermistor or temp .-sensitive diodes, temperature sensitive triode, temperature control thyristor, mercury thermometer, bimetallic strip, integrated temperature sensor etc.Temperature sensor is arranged in feeding bottle standing groove bottom stainless steel substrates central void, contacts with the feeding bottle bottom.Described circuit arrangement is a circuit board and top components and parts, and it is positioned at temperture teller inside, and temperture teller circuit component such as transistor, resistance, electric capacity, integrated circuit etc. all are fixed on the circuit board by circuit requirement.Between circuit board and the feeding bottle standing groove stainless steel substrates thermofin should be arranged, especially use integrated circuit more thermofin should be set.
This temperture teller has a temp sensor device 5, and sensor 5 is positioned at temperture teller center upper portion place, and temperture teller circuit arrangement 6 is provided with power switch 8, potentiometer 10, loudspeaker 9, double-point double-throw switch 17 etc. in temperture teller inside on the temperture teller.Housing can be made by plastics, bakelite, metal etc., but the position of a splendid attire battery is arranged on the temperture teller.The temperature sensing device of temperture teller can be fixed on also to can be on the temperture teller ties up subsides formula or plug-in type.Temperature sensor is a thermistor temperature sensor.Temperture teller has used music integrated circuit; Temperature sensor is a temp .-sensitive diodes; Temperature sensor is temperature sensitive triode, temperature control thyristor; Temperature sensor is mercury thermometer, bimetallic strip, integrated temperature sensor etc.
Below in conjunction with accompanying drawing temperture teller is described in more detail:
Fig. 1 shows the front view (FV) of an embodiment of temperture teller;
It is circuit theory diagrams of temperature sensor-temperture teller that Fig. 2 shows with the thermistor;
Fig. 3 shows circuit theory diagrams that used music-integrating block circuit-temperture teller;
Fig. 4 shows another circuit theory diagrams that used music-integrating block circuit-temperture teller;
Fig. 5 shows and ties up subsides formula temp sensor device front view (FV);
Fig. 6 shows the front view (FV) of plug-in type temp sensor device;
It is another circuit theory diagrams of temperature sensor-temperture teller that Fig. 7 shows with the thermistor;
It is another circuit theory diagrams of temperature sensor-temperture teller that Fig. 8 shows with the thermistor;
It is circuit theory diagrams of temperature sensor-temperture teller that Fig. 9 shows with the temp .-sensitive diodes;
It is circuit theory diagrams of temperature sensor-temperture teller that Figure 10 shows with temperature sensitive triode;
It is circuit theory diagrams of temperature sensor-temperture teller that Figure 11 shows with the temperature control thyristor;
Figure 12 shows circuit theory diagrams counting temperature sensor-temperture teller with mercury temperature;
It is circuit theory diagrams of temperature sensor-temperture teller that Figure 13 shows with the bimetallic strip;
Figure 14 shows circuit theory diagrams that constitute temp sensor device-temperture teller with integrated temperature sensor.
In conjunction with Fig. 1:
Feeding bottle standing groove 1 is positioned at the temperture teller top among the figure, and high 1-3 centimetre, concavity 2 is the places of placing feeding bottle, and its shape is the same with the feeding bottle bottom, and the depression radius is greater than 1 millimeter of feeding bottle bottom radius.Feeding bottle standing groove bottom is a stainless steel substrates 3, and the feeding bottle bottom all contacts with stainless steel substrates, is pressed on the stainless steel substrates.As removing the feeding bottle standing groove, feeding bottle is placed directly in above the stainless steel substrates, is the feeding bottle mounting table.It is the places of putting the temperture teller temp sensor device that there is a space 4 in stainless steel substrates central authorities, and its shape, size are determined by temp sensor device shape, size.Temp sensor device 5 mainly is the temperature sensor of an encapsulation, as thermistor or temp .-sensitive diodes or temperature sensitive triode or temperature control thyristor or mercury thermometer or bimetallic strip or integrated temperature sensor etc.Temp sensor device is fixed in the stainless steel substrates central void, with the stainless steel substrates insulation, is linked to each other with the circuit arrangement 6 of temperture teller inside by thin wire.Temp sensor device can contact with feeding bottle, also can be gapped slightly.Circuit arrangement 6 mainly is a circuit board in the inside of temperture teller, removes temperature sensor, loudspeaker, power supply, power switch, and the circuit component of other of the outer temperture teller of potentiometer all is fixed on the circuit board, and the different components and parts of circuit form are also different.Between circuit arrangement and the feeding bottle standing groove stainless steel substrates thermofin should be arranged, especially use integrated circuit block more thermofin should be set.The power supply of temperture teller is a battery case 7, can No. one, some joints of splendid attire or C-size battery, be positioned at the temperture teller bottom.Temperture teller power switch 8, loudspeaker 9 and potentiometer 10 all are fixed on the box wall of temperture teller front, will rationally arrange in the position.
Temperture teller can be made by plastics, metal, bakelite etc.As using metal, can and each components and parts should insulate.The size of whole temperture teller is advisable can load four joints battery, loudspeaker, a circuit board, can differ for making graceful its size easy to use of outward appearance.Very little as volume, can be clipped on the feeding bottle and use.
In conjunction with Fig. 2:
Fig. 2 is that temperture teller is the circuit diagram that temperature sensor is formed temp sensor device with the thermistor.Rt, R in the circuit
1, R
2, W, R
6, R
7Form bridge for measuring temperature, transistor BG
1, BG
2Form differential amplifier, BG
3With the output circuit of diode D composition differential amplifier, BG
4And BG
5Deng the composition audio frequency oscillator.BG in the circuit
1And BG
2Adopt NPN miniwatt silicone tube such as 3DG
6Deng, require BG
1And BG
2As far as possible right, identical as far as possible as parameters such as β, Iceo, β is greater than 50.BG
3Be PNP high frequency miniwatt germanium tube such as 3AG etc., its Iceo is the smaller the better.BG
4Can select NPN miniwatt silicone tube such as 3DG for use
6Deng.BG
5Be PNP miniwatt germanium tube, general low frequency such as 3AX
31Deng getting final product.Diode D is the 2AP type.Thermistor R
tAdopt negative tempperature coefficient thermistor, change in resistance is big in the time of should selecting temperature variation for use, the element that the reaction time is short.
Should debug after circuit installs, pour 38 ℃ warm water (preferably milk) in the feeding bottle into, the contact thermistor, energized, and transfer semifixed resistor W, just sounded to loudspeaker and ended.
In conjunction with Fig. 1 and the concrete using method of Fig. 2:
The warm milk of boiling is poured in the feeding bottle, and feeding bottle is placed in the feeding bottle standing groove depression of temperture teller, rotates power switch turn-knob energized (order is after being placed on feeding bottle in the feeding bottle standing groove earlier, again energized) then.The end user can relievedly do other thing behind the power connection.It is very high that the temperture teller thermistor begins to experience milk temperature, and it is very low that resistance becomes, and milk temperature descends gradually in the back feeding bottle, and the resistance of Rt is increasing, and during to 38 ℃ of milk temperature, the resistance of thermistor is big to making circuit bridge balance destruction, BG
1Working current is little, and collector potential rises, BG
2The base potential height, collector potential is little, makes difference channel output V
CBe higher than VO and reach and cause BG
3So the beginning conducting is BG
4, BG
5Audio frequency oscillator is started working, and loudspeaker sends vibration sound, and it tells nursing person that the temperature of suckling just in time is 38 ℃, can feeding infant.
Regulate resistance R
10And capacitor C
1Numerical value can change the tone and the volume of the vibration sound that loudspeaker sends, make it melodious and listen.
This temperture teller semifixed resistor W changes potentiometer into, potentiometer is placed temperture teller power switch turn-knob next door, the resistance that changes potentiometer can be observed and predicted different temperature, the position of different temperatures can be engraved on the potentiometer dish, but because of thermistor change in resistance and the non-complete linear relationship of temperature, scale may be inhomogeneous.Be advisable with 38 ℃ owing to feed the temperature of infant's milk, observe and predict 38 ℃ of temperature so adopt, two or three temperature are just passable at most.
Above-mentioned temperture teller carries out temperature by oscillator work loudspeaker generation vibration sound in the circuit and observes and predicts, this vibration sound is tone relatively, insert music-integrating block in the ifs circuit, like this temperture teller other sound such as a bent interesting to listen to melody sound or simulated sound that can sound when 38 ℃ in milk.The kind and the packing forms of music integrated circuit are a lot of now, can as CW9300 series music integrated circuit, KD9300 series music integrated circuit, CW9400 series music integrated circuit, CW2850-12 music integrated circuit, ML03 type music integrated circuit, CIC2851 music integrated circuit, KD150 series music integrated circuit, KD15 music integrated circuit etc.
In conjunction with Fig. 3:
The circuit theory diagrams of use music integrated circuit-temperture teller that are shown in Figure 3.That music-integrating block uses is CW9300, and the connection of CW9300 is to be in the triggering state in circuit.The bridge for measuring temperature balance is destroyed when 38 ℃ in milk, V
CGreater than V
0, cause BG
3BG is passed through in conducting
4Electronic switch, CW
9300Energized, loudspeaker will be played out a bent music sound.Attention also should connect one and BG on CW9300
4Identical 3DG
6Pipe.
In conjunction with Fig. 4:
Figure 4 shows that another circuit theory diagrams of use music integrated circuit-temperture teller.That music-integrating block uses is CIC2851.The output circuit of differential amplifier connects the trigger end of CIC2851 in the circuit.The bridge for measuring temperature balance is destroyed when 38 ℃ in milk, differential output circuit V
CGreater than V
0, 3AG
1Conducting, CIC2851 is triggered, the loudspeaker bent melody sound that can sound, the user can take off feeding bottle and feed the baby with milk.Fig. 4 circuit meaning of one side in addition is, if the nursing people is busy with other thing and does not hear temperture teller melody sound, in time feeding bottle is not taken off feeding infant, and the temperature of milk still continues to descend, after melody had rung, two complementary multivibrators of managing 3DG and 3AX formation just proceeded with one's work, and the temperture teller loudspeaker can send dull vibration sound, tell the user that milk has cooled off, should reheat and to use after observing and predicting again.
The temperture teller temp sensor device according to the use-pattern difference, also can be made into multi-form except that can being fixed on the temperture teller.
In conjunction with Fig. 5:
Fig. 5 shows and ties up subsides formula temp sensor device front view (FV).Its temp sensor device is not fixed in the stainless steel substrates central void, but 5 is free on outside the temperture teller among temp sensor device-Fig. 5, and the sealing back is by 11 linking to each other with temperture teller among lead-Fig. 5.With 12 sensor device tied up being attached on the feeding bottle among adhesive plaster-Fig. 5, all the other using method and Fig. 1, temperture teller using method shown in Figure 2 are identical during use.
In conjunction with Fig. 6:
Figure 6 shows that plug-in type temp sensor device front view (FV).5 also are free on outside the temperture teller among temperture teller temp sensor device-Fig. 6, be fixed among a glass bar or metal bar-Fig. 6 in 13 the inner chamber-Fig. 6 in 14,15 sealings among accent-Fig. 6 are with 16 linking to each other with temperture teller among thin wire-Fig. 6.During use glass bar or metal bar are inserted in the feeding bottle, all the other using method are identical with the described using method of Fig. 1, Fig. 2.Notice as the use metal bar that thermistor equitemperature sensor should insulate with metal bar.
The circuit form of temperture teller is various, uses same temperature sensor element, also can adopt different circuit to reach the purpose of observing and predicting temperature.
In conjunction with Fig. 7:
It is that temperature sensor and gate circuit CC4011 and complementary push-pull circuit etc. constitute another circuit theory diagrams of temperture teller that Fig. 7 shows with the thermistor.Two doors in left side are formed controlled 2Hz left and right sides oscillator among the figure, and two doors in right side are formed the controlled oscillator about 400Hz.After the resistance through transferring R, when the milk that fills warm milk and contact thermistor Rt temperature more than 38 ℃ the time, the dividing potential drop of thermistor Rt and R is lower than the threshold voltage of NOT-AND gate, and do not work in two groups of oscillator fields, the red green led lighting, loudspeaker is noiseless, in case when milk temperature was reduced to 38 ℃, the resistance of Rt was enough big, first order NOT-AND gate is opened, oscillator work, red green two light emitting diodes are alternately luminous.Other second oscillator is subjected to the 2Hz signal controlling, and interrupted oscillation takes place, through simply by 3DK
4, 3CK
3The complementary push-pull circuit of forming amplifies, and loudspeaker sends interrupted sound.Notice that the enlargement factor that two crystal become should be greater than 150.
In conjunction with Fig. 8:
It is another circuit theory diagrams of temperature sensor-temperture teller that Fig. 8 shows with the thermistor.It is that core is formed by thermistor Rt and one 556 time base circuit mainly.556 time base circuits are made of two 555 time base circuit A and B.Trigger end 6 pin of A are that the current potential that E is ordered is determined by the bleeder circuit that W, Rt etc. forms, and regulate W and can set different temperature.We can debug the audio frequency oscillator starting of oscillation that W makes it 555 inches basic circuit B in the time of 38 ℃ in advance, and loudspeaker sends vibration sound.As the feeding bottle contact Rt that fills warm milk, it is very low that the resistance of Rt becomes, and more than 38 ℃ the time, Rt is less than 1/2(W+R
1) E point current potential is higher than 1/3Vcc, so output terminal 5 pin of time base circuit A are electronegative potential, time base circuit B audio frequency oscillator dead-beat takes place.When being low to moderate 38 ℃ along with the milk temperature drop, the resistance of Rt arrives 1/2(W+R greatly
1), E point current potential is about 1/3Vcc, and time base circuit A output terminal 5 pin will become noble potential, and time base circuit B audio frequency oscillator drives the loudspeaker sounding with starting of oscillation, plays the effect of observing and predicting temperature.
The temperture teller temperature sensor is except that the thermistor of ubi supra, and other is as temp .-sensitive diodes, temperature sensitive triode.Temperature sensitive thyristor.Mercury thermometer, bimetallic strip, integrated temperature sensor etc. can use.
In conjunction with Fig. 9:
Fig. 9 shows with circuit theory diagrams of temp .-sensitive diodes water temperature sensor-temperture teller.That temp .-sensitive diodes is used is 2DWM, and forms the temp .-sensitive diodes string by it, and its sensitivity adjustment is-10mv/ ℃ (each temp .-sensitive diodes temperature was once raising, the about 2mv of PN junction forward drops).Voltage stabilizing diode W2061 provides 6.1 volts reference voltage to electric bridge, and operational amplifier TL071 is a device as a comparison.Circuit is set by the 10K potentiometer and is observed and predicted temperature (38 ℃).This circuit has used music-integrating block CW9300.When the feeding bottle contact temp diode string that fills warm milk, the beginning temperature is very high.Temp diode string both end voltage descends, and back milk temperature decline temp diode string both end voltage raises, when milk temperature is 38 ℃, and the electric bridge out of trim, operational amplifier has voltage output, transistor 3DG
12Conducting makes music integrated circuit CW9300 energized, and loudspeaker promptly sends the music sound.
In conjunction with Figure 10:
It is circuit theory diagrams of temperature sensor-temperture teller that Figure 10 shows with temperature sensitive triode.That temperature sensor adopts is 3AX
31, its resistance varies with temperature, and temperature raises, the resistance step-down, temperature reduces, and resistance uprises.Temperature measurement circuit is by BG
1, W, R
1, R
2And capacitor C
1Form.BG
2Be emitter follower, make the thermometric circuit that better linearity be arranged, by transferring the resistance control BG of W
2Conducting with end, make it to end conducting below 38 ℃ in time more than 38 ℃.BG
3, BG
4Be Schmidt circuit, sort circuit has two steady state (SS)s, works as BG
2When the output letter is worth less than certain, BG
3End BG
4Saturated; Work as BG
2During the output noble potential, BG
3Saturated, BG
4By the output noble potential.And BG
5Conducting can be by depending on BG
4State, BG
4Saturated, BG
5End BG
4End BG
5Conducting.Use music-integrating block CW9300 in the circuit, and be in the triggering state.The feeding bottle that ought fill warm milk like this contacts temperature sensitive triode 3AX
31The time, the beginning temperature is very high, 3AX
31Resistance become very low, back milk temperature decline, temperature sensor 3AX
31Resistance uprises, during to 38 ℃, and emitter follower BG
2Conducting, BG in the bistable circuit
3Saturated, BG
4End controlled BG
5Saturation conduction has also been connected simultaneously music integrated circuit CW9300 power supply, the loudspeaker bent music sound that will sound.BG in this circuit
2, BG
3, BG
4Be 3DG
6, BG
2, BG
3The parameter request unanimity.BG
5Be 3DG
12Or 3DG
13That it should be noted the temperature sensor employing is common triode 3AX
31Need to process slightly, should manage the outstanding ring in pipe cap bottom and go with the file file, smaller volume is in order to use.If use special-purpose temperature triode also passable.
In conjunction with Figure 11:
It is circuit theory diagrams of temperature sensor-temperture teller that Figure 11 shows with the temperature control thyristor.Figure 11 A circuit is simpler, and it is by temperature control thyristor TT202, is made up of stream hummer, light emitting diode etc.Set the switch temperature of temperature control thyristor earlier, observe and predict milk temperature and be set at 38 ℃, promptly the temperature control thyristor just enters on-state by off-state when temperature reaches 38 ℃.When filling the feeding bottle contact temperature control thyristor TT202 of warm milk, the warm milk temperature is higher than 38 ℃ like this, and the brilliant lock of temperature control etc. promptly carries out on-state by off-state, and circuit is connected, lumination of light emitting diode, the hummer sound of sounding a buzzer.During temperature control thyristor switch temperature, owing to used the direct current hummer, the temperature control thyristor can return off-state by on-state automatically when back milk temperature was reduced to 38 ℃, and light emitting diode stops luminous, and hummer is sounding no longer also.So Figure 11 A is that temperature that the temperture teller of temperature sensor observes and predicts milk is the hummer sound of sounding a buzzer more than 38 ℃ the time with the temperature control thyristor, 38 ℃ of hummers stop sounding, also reach the effect of observing and predicting milk temperature.
If shown in Figure 11 B, use relay J in the circuit, the contact J of relay.Switch as music integrated circuit CIC2851 uses, and setting temperature control thyristor TT202 switch temperature is 38 ℃.Ought fill the feeding bottle contact TT202 of warm milk so, be higher than the switch temperature of TT202, the temperature control thyristor enters on-state by off-state, and hummer is sounded a buzzer, the actuating of relay, relay contact J.Place's off-state, CIC2851 does not have energized, and loudspeaker does not have sound.In case TT202 returned off-state by on-state again when milk temperature was reduced to 38 ℃ of the switch temperatures of temperature control thyristor, hummer stops sounding, and relay discharges, relay contact J.Be closure state, make the CIC2851 energized, loudspeaker will be played out the music sound.Shown in Figure 11 B is that the temperture teller of temperature sensor is milk more than 38 ℃ the time temperture teller is sounded a buzzer with the temperature control thyristor, has not had buzzing sound when milk temperature is 38 ℃, and the loudspeaker music sound that will sound reaches the purpose of newspaper thermometric degree.Circuit relay electrical equipment uses 4098, and protection diode D adopts 2CP10 type silicon diode.
In conjunction with Figure 12:
Figure 12 shows circuit theory diagrams counting temperature sensor-temperture teller with mercury temperature.Mercury thermometer WXG selects adjustable electric contact mercury-in-glass thermometer for use, and design temperature is 38 ℃.This circuit has used music-integrating block CW9300, is in the triggering state at circuit.When the feeding bottle contact mercury temperature timing that fills warm milk, warm milk is higher than 38 ℃ of setting values, and mercury thermometer mercury point is connected, 3DG
12Place's cut-off state, CW9300 access failure power supply, loudspeaker voiceless sound.When milk temperature is reduced to 38 ℃ when being the mercury thermometer setting value, the mercury point will automatic cutout, 3DG
12Be saturation conduction, the CW9300 trigger end obtains high level signal and is triggered from power positive end, the loudspeaker melody sound that will sound.Count the modes of emplacement that temperature sensor will be noted mercury thermometer with mercury temperature, mercury thermometer should be placed vertically in feeding bottle standing groove sidewall space, and contacts with the feeding bottle sidewall.
In conjunction with Figure 13:
It is circuit theory diagrams of temperature sensor-temperture teller that Figure 13 shows with the bimetallic strip.Bimetallic strip JN is overlapping (can take from waste and old starter for fluorescent, method slightly) that is bonded together and makes of metal that differs bigger by two kinds of expansion coefficient.The bimetallic strip of making need be aligned the gap between bimetallic strip and contact, makes it at certain design temperature when being higher than 38 ℃, and bimetallic strip contacts with the contact, does not then contact when being lower than 38 ℃.When filling the feeding bottle contact bimetallic strip of warm milk, when being higher than 38 ℃,, cause transistor 3DG in the circuit like this because bimetallic strip contacts with the contact
12Place's cut-off state.Milk temperature is reduced to firm below 38 ℃ the time, and bimetallic strip becomes not contact with the contact, this moment transistor 3DG
12The work that is triggered of saturation conduction, the music-integrating block CW9300 that uses in the circuit, loudspeaker is played out the melody sound, reaches the warm purpose of newspaper.
In conjunction with Figure 14:
Figure 14 shows circuit theory diagrams that constitute temp sensor device-temperture teller with integrated temperature sensor.That integrated temperature sensor uses is homemade SL616.SL616 is made up of three parts.Be voltage-regulating circuit (reference voltage is provided), temperature sensor and operational amplifier.Temperature sensor is its core, utilizes the sensitive parameter of transistorized emitter voltage as temperature, and producing temperature coefficient is the linear voltage of 10mv/K.R is used for setting and observes and predicts temperature spot in Figure 14 circuit, and loudspeaker is sounded in the time of can debugging to 38 ℃ in advance.As temperature SL616 output low level more than 38 ℃ time the, transistor 3DG
12End.And the comparer that the SL616 amplifier constitutes when temperature to 38 ℃ will be exported high level, transistor 3DG
12Place's saturation conduction, music-integrating block CW9300 is triggered, and loudspeaker promptly sends the music sound, reaches the purpose of observing and predicting milk temperature.On 100 ℃ of the integrated temperature sensor temperature-measuring range Gao Keda, the milk boiling point is less than 100 ℃, be contained in the feeding bottle also low, in the scope of observing and predicting.Also can use AD590, will use amplifier (device of making comparisons) in its circuit and the reference power source of reference voltage is provided.
By the above as can be seen temperture teller 11S thermistor be temperature sensor, manufacture craft is simple, volume is little, response speed is fast, low price.With electric bridge as temperature measurement circuit have accurately, sensitive, steady operation and other merits.
This temperture teller is to observe and predict the temperature of pablums such as milk, milk powder, powered milk substitute electuary, the temperature that also can observe and predict hot water, meal soup etc.If the feeding bottle standing groove is taken off, milk pot, rice bowl can be placed directly on the stainless steel substrates of temperture teller, directly observe and predict and are contained in the wherein temperature of hot thing.If can use multi-form temperture teller temp sensor device well, under the general normal temperature by high temperature to all needs of low temperature give put that temperature observes and predicts all can use temperture teller, method is easy.
Above-mentioned temperture teller (is example with Fig. 1, Fig. 2) is to be given to low temperature by high temperature putting temperature and carrying out temperature and observe and predict, if with BG
3Emitter and the base stage of-3AG are exchanged, temperture teller can be done to give the temperature of putting temperature by low temperature to high temperature and observe and predict, this can utilize a double-point double-throw switch to change, and double-point double-throw switch also is installed on the front box wall of temperture teller (Fig. 1-17), temperture teller has just had dual-use function like this.Attention method all is a measured object elder generation contact temperature sensor device, connects the power supply of temperture teller after a while again.
What need especially statement is, described in conjunction with the accompanying drawings above only is some embodiment of the present invention, should not be construed as limitation of the present invention, has for example changed components and parts in the temperture teller circuit etc.The inventor just hopes that the device that adopts this form, structure realizes that the temperature of pablums such as milk observes and predicts, and at first makes things convenient for baby's nursing, and infantile health is grown up.Temperture teller is economical and practical.
Claims (8)
1, a kind of temperture teller, it comprises housing, places by the warm container of newspaper partly, newspaper circuit temperature device etc., it is characterized in that: a temp sensor device 5 is arranged, sensor 5 is positioned at temperture teller center upper portion place, temperture teller circuit arrangement 6 is provided with power switch 8, potentiometer 10, loudspeaker 9, double-point double-throw switch 17 etc. in temperture teller inside on the temperture teller.
2, temperture teller according to claim 1 is characterized in that: housing can be made by plastics, bakelite, metal etc., but the position of a splendid attire battery is arranged on the temperture teller.
3, temperture teller according to claim 1 is characterized in that: the temperature sensing device of temperture teller can be fixed on also to can be on the temperture teller ties up subsides formula or plug-in type.
4, the described temperture teller of claim 1 is characterized in that: temperature sensor is a thermistor temperature sensor.
5, temperture teller according to claim 1, it is characterized in that: temperture teller has used music integrated circuit.
6, temperture teller according to claim 1 is characterized in that: temperature sensor is a temp .-sensitive diodes.
7, temperture teller according to claim 1 is characterized in that: temperature sensor is temperature sensitive triode, temperature control thyristor.
8, temperture teller according to claim 1 is characterized in that: temperature sensor is mercury thermometer, bimetallic strip, integrated temperature sensor etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92109383 CN1068422A (en) | 1992-08-15 | 1992-08-15 | Temperture teller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92109383 CN1068422A (en) | 1992-08-15 | 1992-08-15 | Temperture teller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1068422A true CN1068422A (en) | 1993-01-27 |
Family
ID=4944119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92109383 Pending CN1068422A (en) | 1992-08-15 | 1992-08-15 | Temperture teller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1068422A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102169618A (en) * | 2010-02-26 | 2011-08-31 | 鸿富锦精密工业（深圳）有限公司 | Temperature control alarm circuit |
| CN111121999A (en) * | 2019-11-13 | 2020-05-08 | 江苏弘历电气有限公司 | Temperature measuring circuit of PT100 resistance core with constant current source |
-
1992
- 1992-08-15 CN CN 92109383 patent/CN1068422A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102169618A (en) * | 2010-02-26 | 2011-08-31 | 鸿富锦精密工业（深圳）有限公司 | Temperature control alarm circuit |
| CN111121999A (en) * | 2019-11-13 | 2020-05-08 | 江苏弘历电气有限公司 | Temperature measuring circuit of PT100 resistance core with constant current source |
| CN111121999B (en) * | 2019-11-13 | 2021-06-22 | 江苏弘历电气有限公司 | Temperature measuring circuit of PT100 resistance core with constant current source |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100343640C (en) | Electronic thermometer | |
| EP0332355B1 (en) | Nursing bottle assembly | |
| RU2533104C2 (en) | Bottle ensuring safe temperature | |
| CN2817651Y (en) | Multifunctional cup pad with temeprature display | |
| CN1068422A (en) | Temperture teller | |
| CN202035883U (en) | A vacuum cup capable of displaying water temperature and water level | |
| CN201237534Y (en) | Temperature sensing element | |
| KR20070040768A (en) | Smart cup which is set up devices that control output devices by the rate of temperature change per unit time | |
| JPS61243333A (en) | Temperature detector | |
| CN203506393U (en) | Milk warming device | |
| EP0995268B1 (en) | Timing circuit | |
| CN2100665U (en) | Temp. measuring and reporting device | |
| CN103191025A (en) | Temperature-controlled feeding bottle | |
| CN101862268A (en) | Temperature-sensitive nursing bottle | |
| CN201701503U (en) | Temperature indicating feeding bottle | |
| CN2131520Y (en) | Nursing bottle with temperature displaying device | |
| CN2165433Y (en) | Multifunctional body temp measuring device | |
| CN2531879Y (en) | Heater for biological freezing centrifuger | |
| CN2378042Y (en) | Feeding-bottle with thermometer | |
| CN1775155A (en) | Electric heating thermos cup with temperature display | |
| CN2772505Y (en) | Insulated thermometric feeding milk | |
| CN215126888U (en) | Staple food control bowl based on boosting concept | |
| CN2601666Y (en) | Temperature-indicating feeding bottle | |
| CN2877684Y (en) | Nursing bottle sleeve with temperature alarm indicating | |
| CN209995833U (en) | kinds of multifunctional thermos cup |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |