CN2721096Y

CN2721096Y - Thermostatic sterilizer of feeding bottle

Info

Publication number: CN2721096Y
Application number: CN 200420011005
Authority: CN
Inventors: 陈江
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-06-10
Filing date: 2004-06-10
Publication date: 2005-08-31
Anticipated expiration: 2014-06-10

Abstract

The utility model discloses a thermostatic sterilizer of milk bottle which is used for the constant temperature disinfection of the milk bottle, solving the disinfecting problem of the milk bottle under the constant temperature. The utility model comprises an upper cover, a container body and a controlling circuit. The upper cover is arranged on the opening of the container body. The container body is provided with a barrier at the lower part. One side of the barrier is provided with an ultraviolet lamp for disinfection. The other side of the barrier is provided with a heater. The heater and the ultraviolet lamp for disinfection are connected with the electric circuit of the control circuit board which is arranged on the lower inner side wall of the container body. The upper inner side of the container body is provided with a temperature probe. The upper opening of the container body is provided with a light sensitive component. The bottom of the container body is provided with a control button, an indicating lamp and the display screen of a nixie display. The power end of the electric circuit on the control circuit board is provided with a power plug. The utility model has the advantages of novel structure, easy use, combination of heating and disinfecting functions, safety, sanitation and portability. The utility model is favorable for feeding babies.

Description

Feeding bottle constant temperature disinfector

One, technical field

This utility model relates to be used for a kind of feeding bottle constant temperature disinfector of sterilizing feeding bottle.

Two, background technology

Raising and other many factors along with people's living standard, adopt agalactous baby more and more now, such family is faced with a same problem more: exhausted feeding bottle will in time be sterilized, the boiled water of dissolving milk powder will cool off and remain on suitable temperature, build a safety could for so agalactous baby, health, comfortable diet environment, though the product with sterilizing function on the market is a lot of now, but it is relatively heavier mostly, use is carried very inconvenient, moreover the effect that only has sterilizing, and the feeding bottle treasured of being sold only has homothermic function, can not finish the constant temperature sterilization to feeding bottle simultaneously, this feeds the baby with milk makes troubles.

Three, utility model content

At above-mentioned situation, the purpose of this utility model just provides a kind of feeding bottle constant temperature disinfector, can effectively solve the sterilization problems of feeding bottle under stationary temperature, the technical scheme of its solution is to be made of loam cake and container body and control circuit, loam cake is contained on the container body oral area, the container body has baffle in the bottom, on baffle one side ultraviolet germicidal lamp is housed, below the baffle opposite side heater is housed, heater is connected with the circuit on the control circuit board that is contained in container body lower inside wall with ultraviolet germicidal lamp, and inner face is equipped with temperature probe on the container body, and photosensitive part is equipped with at the upper opening place, control knob is arranged at container body bottom, the display screen of display lamp and nixie display, be connected to attaching plug on the circuit power end on the control circuit board, its novel structure uniqueness of this utility model, easy to use, integrate heating and sterilize, safety, health, easy to carry, help infant feeding, the Application and Development extensive market.

Four, description of drawings

Fig. 1 is a sectional front view of the present utility model.

Fig. 2 is the outside three-dimensional front view (loam cake separates with the container body) of this utility model.

Fig. 3 is this utility model control circuit figure.

Five, the specific embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is elaborated.

By Fig. 1, shown in Figure 3, this utility model is to be made of with control circuit loam cake 2 and container body 1, loam cake 2 is contained in container body 1 upper oral part, the container body has baffle 6 in 1 bottom, on baffle 6 one sides ultraviolet germicidal lamp 8 is housed, heater 7 is housed below the opposite side, heater 7 is connected with the circuit on the control circuit board 18 that is contained in container body 1 lower inside wall with ultraviolet germicidal lamp 8, inner face is equipped with temperature probe 5 on the container body 1, photosensitive part 17 is equipped with at upper opening 19 places, temperature probe 5 joins with the control circuit on the control circuit board 18 with photosensitive part 17, control knob 10 is arranged successively at container body 1 bottom, relay indicating light 11, sterilization display lamp 12 and display screen 13, be connected to dc power plug 9 on the dc power supply terminal of the control circuit on the control circuit board 18, be connected to ac power plug 15 on the alternating current power supply end.In order to guarantee result of use and safety, on the external screw thread body 16 on container body 1 top, handle 3 is arranged loam cake 2 at loam cake 2 tops through female thread body 4 spinnings, and loam cake 2 is equipped with insulation layer 14 (generally adopting common foamed heat-insulating material) with container body 1 inner face; On the baffle 6 louvre is arranged.

Provided by Fig. 3, the control circuit on the said control circuit board 18 is by voltage comparator ic ₃, voltage measurement and display driving integrated circuit IC ₁, the liquid crystal display IC ₂, integrated circuit of clock IC ₄And auxiliary circuit constitutes voltage comparator ic ₃Input (+) meets thermometric diode D ₁(temperature probe) is anodal, resistance R ₄, capacitor C ₂And IC ₁Foot 30 (IN LO end), IC ₃Input (-) connecting resistance R ₁₁And variable resistance R ₁₀, variable resistance R ₁₀Through resistance R ₉Meet thermometric diode D ₁Negative pole, adjustable resistance VR ₁, VR ₂And IC ₁Foot 32 (COM ground end) and foot 35 (REF LO), voltage comparator ic ₃The earthing of casing, IC ₃Output termination audion VT ₃Base stage, VT ₃Colelctor electrode connect capacitor C ₆, IC ₁Foot 26 (V-) and bridge rectifier U (-) end, VT ₃Emitter stage connecting resistance R ₁₂And heater RL, resistance R ₁₂Through light emitting diode VD ₃Connect the heater RL other end and resistance R ₁₁, R ₄With IC ₁1 foot (V+), capacitor C ₆The other end through resistance R ₃Meet adjustable resistance VR ₁The other end, meet adjustable resistance VR through resistance R T ₂The other end, be connected to bridge rectifier U (+) end, be connected to by coil L on the bridge rectifier U plate ₂, L ₁Alternating current power supply end a, the b of the transformator of coiled (available civil power 220V alternating current power supply), (+) of bridge rectifier U, (-) termination have dc power supply terminal K, L, and the L end line is through press button SA connecting resistance R ₅With integrated circuit of clock IC ₄2 feet (TR), IC ₄6 feet (TH) with 7 feet (D) and connect capacitor C ₇, resistance R ₆, through resistance R ₆Connecting resistance R ₅And capacitor C ₆Ground end and IC ₄8 feet (V+), 4 feet (R), resistance R ₇With germicidal lamp DJ, IC ₄1 foot (V-) connect capacitor C ₇The other end, capacitor C ₈And audion VT ₂Colelctor electrode, IC ₄5 feet (GO) connect capacitor C ₈The other end, light sensitive diode VD ₁Negative pole meets IC ₄1 foot and dc power supply terminal L power line on, light sensitive diode VD ₁Positive pole meets audion VT ₁Base stage, IC ₄3 feet (OUT) through resistance R ₈Meet VT ₁Base stage, audion VT ₁Emitter stage is through light emitting diode VD ₂Connecting resistance R ₇The other end, VT ₁Colelctor electrode meet VT ₂Base stage, VT ₂Emitter stage connect the other end of germicidal lamp DJ, IC ₁40 feet (OSC1) through resistance R ₂Connect 39 feet (OSC2), through capacitor C ₃Connect 38 feet (OSC3), 36 feet (REF HI) meet adjustable resistance VR ₁Sliding end, 34 feet (C+VEF) are through capacitor C ₄Connect 33 feet (C-VEF), 31 feet (IN HI) are through capacitor C ₂Connect 30 feet (IN LO), 29 feet (A-Z) connect capacitor C ₅, 27 feet (IHT) connect capacitor C ₁, capacitor C ₁, C ₅In parallel through resistance R ₁Meet IC ₁28 feet (OUFF), IC ₁Input 20 feet (POL) to 37 feet (TEST) meet IC successively ₂The foot 2 (NINUE) of input (is asked for an interview IC among Fig. 3 to foot DPI ₁, IC ₂Shown in).

In foregoing circuit, IC ₁Can adopt the ICL7136 integrated circuit, it has the function of measuring input voltage and driving LCDs, IC ₂Can adopt liquid crystal display integrated circuit SP521PR, IC ₃Can adopt LM311 voltage comparator integrated circuit, IC ₄Can adopt CC7555 type integrated circuit of clock; Fig. 1 middle-ultraviolet lamp germicidal lamp 8 is the germicidal lamp DJ among Fig. 3; Temperature probe 5 is thermometric diode D ₁, adopt silicon diode IS1588; Photosensitive part 17 is light sensitive diode (or photoconductive resistance) VD ₁Display screen 13 is IC ₂The display screen of nixie display; Control knob 10 is press button SA; Relay indicating light 11 is light emitting diode VD ₃ Sterilization display lamp 12 is light emitting diode VD ₂ Dc power plug 9 is dc source lug K, L; Ac power plug 15 is alternating current power supply lug a, b; Heater 7 is heater RL, can adopt ptc heater.

Operating position of the present utility model is that feeding bottle is placed the container body 1 time, cover loam cake 2, energized gets final product, its working condition is: this utility model adopts 220V to exchange and two kinds of power supply modes of 12V direct current, mainly be that this utility model of consideration can be used at home, using on automobile in the time of going out again, is the 220V alternating voltage as what import, at first by transformator L1/L2, bridge rectifier U, capacitor C ₉The decompression rectifier filter circuit of forming, be converted into the 12V direct current after, the circuit of supplying with the back uses, input be the 12V DC voltage, the circuit that directly just can supply with the back uses.When ambient temperature changed, temperature probe 5 was thermometric diode D ₁, the forward drop of its PN junction is with-2mv/ ℃ change, usually, in the time of 20 ℃, the about 600mv of the forward drop of its PN junction, when X ℃ of ambient temperature increase, promptly when 20 ℃ changed to (20+X) ℃, at this moment the forward drop of PN junction was about 40mv.This utility model realizes temperature detection and control by the variation of the forward drop of detection thermometric diode PN junction.D ₁The voltage signal one tunnel of last generation is transferred to IC ₁(ICL7136) IN LO and COM input, IC ₁(ICL7136) be a kind of CMOS type integrated circuit that is used to measure input voltage, between ± the 2V, its inside includes LCD LCDs drive circuit to the measuring voltage scope, can directly drive the liquid crystal display IC at ± 200mv ₂(SP521PR) work, IC ₁(ICL7136) height (IN HI), low (IN LO) two input terminals are arranged, also have a ground end (COM), this COM end is different with the negative pole of power supply, and it links to each other with chip internal and constitutes the ground of reference voltage, when measuring input voltage, be the potential difference (V that measures between IN HI and the IN LO _H-V _L), increase along with the minimizing of the forward drop of thermometric diode PN junction, thereby temperature shows and increases.IC correctly is set as shown in Figure 3 ₁(ICL7136) peripheral circuit, and zero-regulator resistor VR ₂, calibrating resistance VR ₁Resistance adjust, just can make the numeral that shows on the LCDs consistent with ambient temperature.D ₁Another road of voltage drop signal of last generation transfers to integrated voltage comparator IC ₃, when the voltage of voltage comparator input (+) is higher than the voltage of input (-), that is to say D ₁When the temperature value that measures is lower than setting value, integrated voltage comparator IC ₃Export positive control signal, heater RL (ptc heater) begins heating, light emitting diode VD ₃(relay indicating light 11 of heater) is luminous, and at this moment the temperature in the container body 1 will raise gradually, until voltage comparator ic ₃The voltage of input (+) is lower than the voltage of input (-), just D ₁The temperature value that measures is higher than setting value, integrated voltage comparator IC ₃Export minus control signal, RL stops heating, light emitting diode VD ₃Extinguish voltage comparator ic ₃Along with D ₁The variation of the voltage drop signal of last generation is just repeating following such loop control process: when temperature is lower than design temperature in the container body, ptc heater begins heating, temperature raises in the container body, when temperature is higher than design temperature in the container body, ptc heater stops heating, and temperature descends in the container body.Wherein, voltage comparator ic ₃The voltage of input (-) is by resistance R ₉, R ₁₀, R ₁₁Resistance decision, R wherein ₁₀Be variable resistance, select the resistance of each resistance, just can make voltage comparator ic as Fig. 3 ₃Input-voltage adjustable between 500mv-548mv (pairing temperature controlling range is 46-70 ℃), adjust variable resistance R as required ₁₀Resistance, just can make on the arbitrary value of temperature constant in 46-70 ℃ of scope in the container body 1.

Normally open push button switch SA (ultraviolet sterilization control knob 10) is the button that is used for controlling ultraviolet germicidal lamp 8 duties, by peripheral cell IC ₄(CC7555) be connected into monostable flipflop.When SA was in normally open, its 2 foot was input as high level, by IC ₄The monostable flipflop circuit that constitutes is in steady statue, and its 3 foot is output as low level, audion VT ₁, VT ₂(all selecting silicon triode for use) is in by state because of no base stage forward bias voltage; When the of short duration closure of SA, 2 feet input negative pulse is by IC ₄The monostable flipflop that constitutes will have the stable state upset to be temporary stable state, positive pulse of its 3 foot output, and the time that positive pulse continues will be by resistance R ₆And capacitor C ₇Value decision, resistance is 330K Ω among Fig. 3, when electric capacity was 470 μ F, the positive pulse persistent period if this moment, loam cake 2 covered on container body 1, that is to say light sensitive diode VD about 30 minutes ₁(photosensitive part 17) crested is subjected to the irradiation less than light, VD ₁Resistance will be very big, audion VT ₁, VT ₂Obtain the forward bias voltage conducting, ultraviolet germicidal lamp 8 obtains running voltage, sends ultraviolet and begins sterilization, light emitting diode VD ₂(ultraviolet germicidal lamp working station indicator 12) lights the luminous duty that indicates ultraviolet germicidal lamp; If this moment, loam cake 2 did not cover on container body 1 light sensitive diode VD ₁Its resistance of irradiation that is subjected to light will be below 2K Ω, audion VT ₁, VT ₂Can not obtain enough base stage forward bias voltage conductings, ultraviolet germicidal lamp 8 can not obtain running voltage, light emitting diode VD ₂Extinguish, light sensitive diode VD is set ₁Though effect whenever just be that ultraviolet germicidal lamp 8 all can not worked when user was opened loam cake 2, can avoid being come to harm by ultraviolet radiation.Simultaneously by heat exchange, water temperature in the feeding bottle progressively reaches consistent with container body 1 interior temperature, and constant on setting value by temperature-control circuit, at this moment the numeral that shows on the digital display screen is a water temperature, has so just finished the constant temperature disinfection to feeding bottle.

Can use ptc heater in this utility model, adopt running voltage 12V, power 10-20W, near the PTC exothermic material that have metal fin of curie point 90 degree has safety, efficient, energy-saving advantages.

The ultraviolet germicidal lamp that uses in this utility model adopts running voltage 12V, the U type ultraviolet germicidal lamp of power 1-4W, and fluorescent tube has the quartz glass protective cover outward, can play the effect of protection against the tide, protection to fluorescent tube.

Therefore circuit shown in Figure 3 can adopt existing control circuit, and to circuit and have not a particular requirement, the constant temperature disinfectant that every employing this utility model structure assembling form is realized all is protection domains of the present utility model.

Claims

1, a kind of feeding bottle constant temperature disinfector, be to constitute by loam cake and container body and control circuit, loam cake is contained in container body upper oral part, it is characterized in that it being in container body (1) bottom baffle (6) to be arranged, on baffle (6) one sides ultraviolet germicidal lamp (8) is housed, heater (7) is housed below the opposite side, heater (7) is connected with the circuit on the control circuit board (18) that is contained in container body (1) lower inside wall with ultraviolet germicidal lamp (8), container body (1) is gone up inner face temperature probe (5) is housed, upper opening (19) locates to be equipped with photosensitive part (17), control circuit on temperature probe (5) and the same control circuit board of photosensitive part (17) (18) joins, control knob (10) is arranged successively at container body (1) bottom, relay indicating light (11), sterilization display lamp (12) and display screen (13), be connected to dc power plug (9) on the dc power supply terminal of the control circuit on the control circuit board (18), be connected to ac power plug (15) on the alternating current power supply end.

2, feeding bottle constant temperature disinfector according to claim 1 is characterized in that loam cake (2) and container body (1) inner face are equipped with insulation layer (14).

3, feeding bottle constant temperature disinfector according to claim 1 is characterized in that on the said baffle (6) louvre being arranged.