CN1172273C - Cooling device for vendor - Google Patents
Cooling device for vendor Download PDFInfo
- Publication number
- CN1172273C CN1172273C CNB01140146XA CN01140146A CN1172273C CN 1172273 C CN1172273 C CN 1172273C CN B01140146X A CNB01140146X A CN B01140146XA CN 01140146 A CN01140146 A CN 01140146A CN 1172273 C CN1172273 C CN 1172273C
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- evaporator
- storehouse
- temperature sensor
- temperature
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- Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
Abstract
The invention provides a cooling device of vending machine capable of efficiently and simultaneously cooling a plurality of commodity storehouses in a well- balanced state. The cooling device 1 of the vending machine is provided with a series cooling circuit for supplying a coolant shot from a compressor 11 to a first evaporator 16a and a second evaporator 16b in this order, a by-pass cooling circuit for supplying a coolant shot from the compressor 11 to the second evaporator 16b, evaporator temperature sensors 24a, 24b for detecting the temperature in the evaporators 16a, 16b, storehouse temperature sensors 21a, 21b for detecting the temperature in the commodity storehouses 19, 20, and a control device 22. The preset temperature is varied according to the temperature in the commodity storehouses 19, 20.
Description
Technical field
The present invention relates to the cooling device of automatic vending machine, this automatic vending machine has some commodity of accommodating commodity and accommodates the storehouse, sells being housed in the commodity cooling back that commodity accommodate in the storehouse.
Background technology
Before, be contained in the cooling device on such automatic vending machine 2, form shown in Figure 6 is arranged.This cooling device 101 has: compressor 11, condenser 12, solenoid valve 13a (the 1st evaporator valves), kapillary 14a, reservoir 15, serial refrigerant pipe 17 (this refrigerant pipe 17 is connected in series 2 evaporator 16a (the 1st evaporator), 16b (the 2nd evaporator) and constitutes the cooling circuit of closed loop shape), solenoid valve 13b (the 2nd evaporator valves) and kapillary 14b also have and an evaporator 16b is connected with compressor 11 and condenser 12 and constitutes the bypass refrigerant pipe 18 of closed loop shape cooling circuit.Cold-producing medium is enclosed in the cooling circuit, circulates in this cooling circuit.Evaporator 16a, 16b are provided in changeable cooling and cooling off of heating respectively and heat with accommodating storehouse 20 (the 1st commodity are accommodated the storehouse) and the cooling special use is accommodated in the storehouse (the 2nd commodity are accommodated the storehouse), in each storehouse 19,20, setting and detecting storehouse temperature sensor 21a, the 21b that storehouse temperature is used. Solenoid valve 13a, 13b are the open and close type valves, and the control device control of not shown by figure opens and closes.
In the above-mentioned structure, be condensed device 12 condensations and the cold-producing medium that liquefies, by solenoid valve 13a, 13b, kapillary 14a, 14b, inflow evaporator 16a, 16b, portion's gasification within it from evaporator 16a, 16b and capture latent heat on every side, like this, is cooled in each storehouse.In addition, passed through the cold-producing medium of evaporator 16a, 16b, temporarily be stored in the reservoir 15 after, be inhaled into compressor 11, here be compressed and become the gas shape cold-producing medium of High Temperature High Pressure, deliver to condenser 12 liquefaction again, in cooling circuit, circulate.
By this structure, for example, in the winter time, close solenoid valve 13a, open another solenoid valve 13b, cold-producing medium is only supplied be provided in the special-purpose evaporator 16a that accommodates in the storehouse 19 of cooling, make the cooling special use accommodate storehouse 19 coolings, make to be provided in cooling and to heat and show well heater 23 actions, cooling is heated heat, can sell the commodity that the commodity that are cooled and quilt are heated simultaneously with accommodating storehouse 20 with the diagrams of accommodating in the storehouse 20.In addition, in summer, the switching of control 2 solenoid valve 13a, 13b is supplied with cold-producing medium and is provided in that cooling is special-purpose accommodates storehouse 19 and cooling is heated with 2 evaporator 16a, 16b accommodating in the storehouse 20, can sell two commodity cooling backs of accommodating in the storehouse.
In this cooling device 101 before, making the cooling special use accommodate storehouse 19 and cooling heats with accommodating storehouse 20 when cooling off simultaneously, to make cooling simultaneously in 2 storehouses as far as possible, and cold-producing medium is supplied with evaporator 16a, 16b by predefined solenoid valve 13a, the 13b of opening and closing time-interleavedly.When detecting, storehouse temperature sensor 21a, 21b accommodate when being cooled to predetermined storage temperature in the storehouse, be closed with evaporation 16a, solenoid valve 13a, the 13b that 16b is being connected in being provided in this storehouse, the supply of cold-producing medium stops, and makes this accommodate the above-mentioned storage temperature of maintenance in the storehouse.
But, making the cooling special use accommodate storehouse and cooling and heat with accommodating the storehouse when cooling off simultaneously, the cooling load of respectively accommodating in the storehouse is not certain.For example, the accommodating of one side accommodated the big commodity of cooling load, the opposing party and accommodated when accommodating the little commodity of cooling load in the storehouse in the storehouse, respectively accommodate storehouse cooling even alternately make with preset time, accommodating in the storehouse of the big commodity of cooling load, be not easy to be cooled, arrive the time lengthening of predetermined preservation temp.
In addition, according to the storehouse temperature sensor to accommodating the temperature detection result in the storehouse, to evaporator the supply system cryogen, can be cooled to storage temperature by control though accommodate in the storehouse,, in this control method, when evaporimeter frosting, when freezing etc., evaporator temperature reduces, and the recirculating air of accommodating in the storehouse can not pass through evaporator, can not carry out heat interchange, accommodating commodity can not be cooled.In order to prevent this point, every preset time defrosting time is set, stop when this evaporator the supply system cryogen, then being housed in the temperature of accommodating the commodity in the storehouse and can not remaining on storage temperature.
The present invention makes in view of the above problems, its purpose is to provide a kind of cooling device of automatic vending machine, use this cooling device, irrelevant with the size of accommodating the cooling load in the storehouse, can almost simultaneously some accommodating in the storehouse be cooled off equably, shorten cool time, and the device frosting that avoids evaporating, freeze etc., can will accommodate effectively in the storehouse in and cool off.
Summary of the invention
To achieve these goals, first aspect present invention provides a kind of cooling device of automatic vending machine, it is characterized in that having: the commodity of accommodating commodity accommodate storehouse, cooling commodity accommodate the evaporator storehouse in, detect commodity accommodate the storehouse temperature sensor of storehouse temperature, detect evaporator temperature evaporator temperature sensor, according to the detected temperatures of storehouse temperature sensor set lower limit evaporator temperature and upper limit evaporator temperature the evaporator temperature set mechanism, control control gear to evaporator the supply system cryogen;
Above-mentioned control gear, detected temperatures when the storehouse temperature sensor, when design temperature is above in the predetermined storehouse and the detected temperatures of evaporator temperature sensor be that the evaporator ceiling temperature is when above, beginning is to evaporator the supply system cryogen, when the detected temperatures of evaporator temperature sensor arrives the lower limit evaporator temperature, stop to evaporator the supply system cryogen, like this, can accommodate the state of cooling in storehouse according to commodity, control is to evaporator the supply system cryogen.
Second aspect present invention provides a kind of cooling device of automatic vending machine, it is characterized in that having: the 1st commodity of accommodating commodity are accommodated the storehouse, the 2nd commodity are accommodated the storehouse, cool off the 1st commodity and accommodate the 1st evaporator in storehouse, cool off the 2nd commodity and accommodate the 2nd evaporator in storehouse, the series connection cooling circuit, the bypass cooling circuit, detect the 1st commodity and accommodate the 1st storehouse temperature sensor of storehouse temperature, detect the 2nd commodity and accommodate the 2nd storehouse temperature sensor of storehouse temperature, detect the 1st evaporator temperature sensor of the 1st evaporator temperature, detect the 2nd evaporator temperature sensor of the 2nd evaporator temperature, set the evaporator temperature set mechanism of lower limit evaporator temperature and upper limit evaporator temperature respectively according to the detected temperatures of the 1st storehouse temperature sensor or the 2nd storehouse temperature sensor, cold-producing medium is supplied with the control gear of either party in above-mentioned series connection cooling circuit or the above-mentioned bypass circulation; Above-mentioned series connection cooling circuit reduces pressure after the condensation of refrigerant of discharging from compressor, returns compressor again after supplying with the 1st evaporator, the 2nd evaporator successively; Above-mentioned bypass cooling circuit reduces pressure after the condensation of refrigerant of discharging from compressor, returns compressor after supplying with the 2nd evaporator;
Above-mentioned control gear, when the detected temperatures of the 1st storehouse temperature sensor for predetermined storehouse in design temperature when above and the detected temperatures of the 1st evaporator temperature sensor be that upper limit evaporator temperature is when above, the series connection cooling circuit is begun the supply system cryogen, when the detected temperatures of the 1st evaporator temperature sensor arrives the lower limit evaporator temperature, stop series connection cooling circuit the supply system cryogen;
More than the detected temperatures of the 2nd storehouse temperature sensor is for predetermined storehouse temperature and the detected temperatures of the 2nd evaporator temperature sensor be that upper limit evaporator temperature is when above, beginning is to bypass cooling circuit the supply system cryogen, when the detected temperatures of the 2nd evaporator temperature sensor has arrived the lower limit evaporator temperature, stop to bypass cooling circuit the supply system cryogen;
When the detected temperatures of the 1st storehouse temperature sensor for predetermined storehouse in more than the design temperature and the detected temperatures of the 1st evaporator temperature sensor be that upper limit evaporator temperature is when above, beginning begins the supply system cryogen to the series connection cooling circuit, like this, alternately the 1st commodity being accommodated storehouse and 2 commodity accommodates the storehouse and similarly cools off.
In a kind of preferred implementation, above-mentioned evaporator temperature set mechanism is set in upper limit evaporator temperature more than 0 ℃, like this, can prevent that frost and ice are attached on the evaporator.
As mentioned above, the cooling device of the automatic vending machine that first aspect present invention provides is accommodated the state of cooling in storehouse according to commodity, the cold-producing medium that control is supplied with toward evaporator, like this, will the evaporator sub-cooled, avoid waste, prevent to freeze, and, can be cooled to the cooling setpoint temperature.
The cooling device of the automatic vending machine that second aspect present invention provides is accommodated the storehouse and is similarly cooled off by alternately the 1st commodity being accommodated storehouse and the 2nd commodity, can accommodate the storehouse cooling with 2 simultaneously.
In addition,, be attached on the evaporator, can effectively commodity be accommodated the commodity cooling in the storehouse by preventing frost and ice according to the present invention.
Description of drawings
Fig. 1 is the figure of the embodiment of expression cooling device of the present invention.
Fig. 2 is the control block diagram of cooling device of the present invention.
Fig. 3 is that expression cooling is heated with the process flow diagram of accommodating storehouse control method when being set at refrigerating mode, cooling device of the present invention.
Fig. 4 is that expression cooling is heated with the process flow diagram of accommodating storehouse control method when being set at warm up mode, cooling device of the present invention.
Fig. 5 be expression cooling heat with accommodate the storehouse when being set at refrigerating mode, the process flow diagram of the control method of well heater among the present invention.
Fig. 6 is the figure that represents the embodiment of cooling device before.
Embodiment
Below, with reference to the description of drawings embodiments of the invention.With identical construction before, annotate with same tag.
Symbol description: 11 compressors; 12 condensers; The 13a solenoid valve; 16a evaporator (the 1st evaporator); 16b evaporator (the 2nd evaporator); 17 serial refrigerant pipes; 18 bypass refrigerant pipes; Storehouse (the 2nd commodity are accommodated the storehouse) is accommodated in 19 cooling special uses; 20 coolings are heated with accommodating storehouse (the 1st commodity are accommodated the storehouse); 21a storehouse temperature sensor; 21b storehouse temperature sensor; 22 control device (evaporator temperature set mechanism, control gear); The 24a evaporator temperature sensor; The 24b evaporator temperature sensor.
Fig. 1 represents to be contained in the embodiment of the cooling device of the present invention 1 on the automatic vending machine 2 of commodity such as beverage vending utensil.As shown in the figure, this cooling device 1 is with similarly before, have: compressor 11, condenser 12, solenoid valve 13a, kapillary 14a, reservoir 15, serial refrigerant pipe 17 (this refrigerant pipe 17 is connected in series 2 evaporator 16a, 16b and constitutes the cooling circuit of closed loop shape), solenoid valve 13b and kapillary 14b also have and an evaporator 16b is connected with compressor 11 and condenser 12 and constitutes the bypass refrigerant pipe 18 of closed loop shape cooling circuit.Evaporator 16a, 16b are provided in changeable cooling and cooling off of heating respectively and heat with accommodating storehouse 20 and the cooling special use is accommodated in the storehouse 19, on evaporator 16a, 16b, are respectively setting the evaporator temperature sensor 24a, the 24b that detect the interior temperature of evaporator.In respectively accommodating storehouse 19,20, setting and detecting storehouse temperature sensor 21a, the 21b that storehouse temperature is used.
Fig. 2 is the control block diagram of the cooling device 1 of this structure of expression.Cool off the switching device shifter 25 of heating, cooling is heated is set in cooling or warm up mode with accommodating storehouse 20. Storehouse temperature sensor 21a, 21b, evaporator temperature sensor 24a, 24b for example are the sensors that is made of thermistor etc., storehouse 19 is accommodated in detection evaporator 16a, 16b, cooling special use, cooling is heated with the temperature of accommodating in the storehouse 20, is transformed to electric signal and exports to control device (control gear, evaporator temperature set mechanism) 22.Control device 22 has microprogram device and ROM, RAM, according to the operation of outside or be stored in control program in the ROM, detected temperatures according to storehouse temperature sensor 21a, 21b, set lower limit evaporator temperature TE0 and upper limit evaporator temperature (being 2 ℃ in the present embodiment), the ON/OFF control of compressor and well heater is carried out in the switching of control electromagnetic valve 13a, 13b.
In the cooling device 1 of above-mentioned structure, for example, in the winter time, the switching device shifter 25 of heating is cooled off in operation, cooling is heated with accommodating storehouse 20 when being set at warm up mode, and control device 22 cuts out solenoid valve 13a, stops to evaporator 16a the supply system cryogen, to well heater 23 energisings, cooling is heated with accommodating heat in the storehouse 20.In addition, solenoid valve 13b Be Controlled opens and closes, and suitably to evaporator 16b the supply system cryogen, the cooling special use is accommodated in the storehouse 19 and is cooled.On the other hand, in summer, the switching device shifter 25 of heating is cooled off in operation, cooling is heated with accommodating storehouse 20 when being set at refrigerating mode, the switching of control device 22 control electromagnetic valve 13a, 13b, suitably to 2 evaporator 16a, 16b the supply system cryogen, will cool off special use and accommodate in the storehouse 19 and cooling is heated and cooled off with accommodating in the storehouse 20.
Below, with reference to the control method of description of drawings cooling device 1 of the present invention.
Fig. 3 is that expression cooling is heated with the process flow diagram of accommodating storehouse 20 control method when being set at refrigerating mode, cooling device 1 of the present invention.Among Fig. 3,, judge whether being provided in cooling heats with the detected temperatures T1 that accommodates the storehouse temperature sensor 21a in the storehouse 20, reached design temperature (being 3 ℃ in the present embodiment) in the cold room at step 1 (S1).
At step 2 (S2), if 3 ℃ of the detected temperatures T1 less than of storehouse temperature sensor 21a, sign F1=1.
At step 3 (S3), if the detected temperatures T1 of storehouse temperature sensor 21a is more than 3 ℃ the time, judge to detect and to be provided in cooling and to heat, whether more than 2 ℃ (upper limit evaporator temperature) with the detected temperatures T2 of the evaporator temperature sensor 24a of temperature in the evaporator 16a that accommodates in the storehouse 20.
Like this, be judged as evaporator 16a and whether be the frosting state (in fact, when detected temperatures TE1 is below 0 ℃, the deducibility evaporator is the frosting state, but considers error at measurment etc., when detected temperatures TE1 is below 2 ℃ the time, being judged as evaporation is the frosting state), when evaporator 16a is frozen state, avoid the supply of cold-producing medium, till the frosting of evaporator 16a is removed.Like this, the heat interchange of evaporator 16a is fully carried out, and can cool off the commodity S that heats with accommodating in the storehouse 20 effectively.
At step 4 (S4), heat with the detected temperatures of accommodating storehouse temperature 21a according to cooling, set the lower limit evaporator temperature TE0 that stops to the evaporator temperature sensor 24a of evaporator 16a the supply system cryogen.In the present embodiment, the detected temperatures TE1 of storehouse temperature sensor 21a is more than 20 ℃ the time, lower limit evaporator temperature TE0 is set in-3 ℃, detected temperatures TE1 is more than 10 ℃, during 20 ℃ of less thaies, lower limit evaporator temperature TE0 is set in-5 ℃, during 10 ℃ of detected temperatures TE1 less thaies, lower limit evaporator temperature TE0 is set in-7 ℃.
Like this, according to the variation of accommodating storehouse temperature, the arrival lower limit evaporator temperature TE0 of change and setting evaporator, like this, the temperature in the evaporator is sufficiently cooled, even placing, also become the state of cooling in the storehouse, will exceedingly cool off evaporator not resembling before and cause waste.And the device frosting can avoid evaporating.
At step 5 (S5), open solenoid valve 13a, close solenoid valve 13b simultaneously, cold-producing medium is fed into evaporator 16a.
At step 6 (S6), whether at work to judge compressor 11.
At step 7 (S7), compressor 11 is at work the time, starting.
At step 8 (S8), judge whether the detected temperatures TE1 of evaporator temperature sensor 24a reaches lower limit evaporator temperature TE0.During no show lower limit evaporator temperature TE0, cold-producing medium is continued to be supplied with.
Like this, according to the testing result of storehouse temperature sensor 21a and evaporator temperature sensor 24a, control is supplied with to the cold-producing medium of evaporator 16a, so, can be effectively and cooling is heated be cooled to design temperature in the cold room effectively with the temperature of accommodating in the storehouse 20.
At step 9 (S9), judge to be provided in the special-purpose detected temperatures T2 that accommodates the storehouse temperature sensor 21b in the storehouse 19 of cooling whether reached 3 ℃ of the interior design temperatures of cold room.
At step 10 (S10), 3 ℃ of the detected temperatures T2 less thaies of storehouse temperature sensor 21b, whether judgement symbol is F1=0.
At step 11 (S11), when sign F=0, stop compressor 11.F=0 then.
At step 12 (S12),, judge and detect the detected temperatures TE2 that is provided in the evaporator temperature sensor 24b of temperature in the special-purpose evaporator 16b that accommodates in the storehouse 19 of cooling, whether more than 2 ℃ when the detected temperatures T2 of storehouse temperature sensor 21b is more than 3 ℃ the time.
At step 13 (S13),, set the lower limit evaporator temperature TE0 that stops to the evaporator temperature sensor 24b of evaporator 16b the supply system cryogen according to the special-purpose detected temperatures of accommodating storehouse temperature sensor 21b of cooling.(setting 4 standard set by step)
At step 14 (S14), open solenoid valve 13b, close solenoid valve 13a simultaneously, cold-producing medium only is fed into evaporator 16b.
At step 15 (S15), whether at work to judge compressor 11.
At step 16 (S16), compressor 11 is at work the time, starting.
At step 17 (S17), judge the detected temperatures TE2 of evaporator temperature sensor 24b, whether reach lower limit evaporator temperature TE0.When not reaching lower limit evaporator temperature TE0, continue the supply system cryogen.
Cooling device 1 is Be Controlled as mentioned above.In addition,, cooling is heated accommodate almost evenly cooling similarly of storehouse 19, can shorten cool time with accommodating storehouse 20 and cooling special use by this control.
The flowcharting of Fig. 4 represent to cool off heat with accommodate storehouse 20 when being set at warm up mode, the special-purpose control method of accommodating the cooling device 1 in the storehouse 19 of cooling cooling.The flowcharting of Fig. 5 is heated and is cooled off the control method of heating with the well heater 23 of accommodating storehouse 20.
Among Fig. 4, at step 21 (S21), open solenoid valve 13b, close solenoid valve 13a simultaneously, cold-producing medium only supplies to evaporator 16b.
At step 22 (S22), judge to be provided in the special-purpose detected temperatures T2 that accommodates the storehouse temperature sensor 21b in the storehouse 19 of cooling whether reach 3 ℃ of the interior design temperatures of cold room.
At step 23 (S23), during 3 ℃ of the detected temperatures T2 less thaies of storehouse temperature sensor 21b, stop compressor 11.
Whether at step 24 (S24), the detected temperatures T2 of storehouse temperature sensor 21b is more than 3 ℃ the time, judges and detects the detected temperatures TE2 that is provided in the evaporator temperature sensor 24b of temperature in the special-purpose evaporator 16b that accommodates in the storehouse 19 of cooling, reach more than 2 ℃.
At step 25 (S25),, set the lower limit evaporator temperature TE0 that stops to the evaporator temperature sensor 24b of evaporator 16b the supply system cryogen according to the special-purpose detected temperatures of accommodating storehouse temperature sensor 21b of cooling.(setting standard) according to step 4.
In step 26, whether at work to judge compressor 11.
At step 27 (S27), compressor 11 is at work the time, starting.
At step 28 (S28), judge the detected temperatures TE2 of evaporator temperature sensor 24b, whether reach lower limit evaporator temperature TE0.When not reaching lower limit evaporator temperature TE0, continue the supply system cryogen.
Cooling device 1 is Be Controlled as mentioned above.
Among Fig. 5,, judge whether being provided in cooling heats with the detected temperatures T1 that accommodates the storehouse temperature sensor 21a in the storehouse 20, reached design temperature in the storehouse of heating (being 55 ℃ in the present embodiment) at step 31 (S31).
At step 32 (S32),, stop well heater 23 energisings if the detected temperatures T1 of storehouse temperature sensor 21a is more than 55 ℃.
At step 33 (S33), if the detected temperatures T1 of storehouse temperature sensor 21a below 55 ℃, heats with well heater 23 energisings of accommodating in the storehouse 20 to being provided in cooling.
As mentioned above, control energising, cooling is heated heat with accommodating storehouse 20 to well heater 23.
As mentioned above, in the cooling circuit structure of the present invention, as shown in Figure 1, at the downstream side of kapillary 14a, set 2 evaporator 16a, 16b, at the downstream side of kapillary 14b, set evaporator 16b, like this, be provided in total the maintenance necessarily of capacity of the evaporator of each kapillary 14a, 14b downstream side.Do not need to regulate the devices such as exapnsion valve of refrigerant amount.In addition, 12 that stretch out from condenser, cold-producing medium is branched off on the two-part refrigerant pipe, be respectively equipped with solenoid valve 13a, 13b, by alternately opening and closing, cold-producing medium is branched off in each pipe effectively, simultaneously, cold-producing medium does not side by side flow in 2 refrigerant pipes, does not need the special device of refrigerant distributor (flow regulator) etc.Like this, the structure of cooling device 1 of the present invention is fairly simple, so the control of cooling device 1 is easy, can provide the high cooling device of reliability 1.
Claims (4)
1. the cooling device of automatic vending machine is characterized in that having: the commodity of accommodating commodity accommodate storehouse, cooling commodity accommodate the evaporator storehouse in, detect commodity accommodate the storehouse temperature sensor of storehouse temperature, detect evaporator temperature evaporator temperature sensor, according to the detected temperatures of storehouse temperature sensor set lower limit evaporator temperature and upper limit evaporator temperature the evaporator temperature set mechanism, control control gear to evaporator the supply system cryogen;
Described control gear, detected temperatures when the storehouse temperature sensor, when design temperature is above in the predetermined storehouse and the detected temperatures of evaporator temperature sensor be that the evaporator ceiling temperature is when above, beginning is to evaporator the supply system cryogen, when the detected temperatures of evaporator temperature sensor arrives the lower limit evaporator temperature, stop to evaporator the supply system cryogen.
2. the cooling device of automatic vending machine as claimed in claim 1 is characterized in that, above-mentioned evaporator temperature set mechanism is set in upper limit evaporator temperature more than 0 ℃.
3. the cooling device of automatic vending machine, it is characterized in that having: the 1st commodity of accommodating commodity are accommodated the storehouse, the 2nd commodity are accommodated the storehouse, cool off the 1st commodity and accommodate the 1st evaporator in storehouse, cool off the 2nd commodity and accommodate the 2nd evaporator in storehouse, the series connection cooling circuit, the bypass cooling circuit, detect the 1st commodity and accommodate the 1st storehouse temperature sensor of storehouse temperature, detect the 2nd commodity and accommodate the 2nd storehouse temperature sensor of storehouse temperature, detect the 1st evaporator temperature sensor of the 1st evaporator temperature, detect the 2nd evaporator temperature sensor of the 2nd evaporator temperature, set the evaporator temperature set mechanism of lower limit evaporator temperature and upper limit evaporator temperature respectively according to the detected temperatures of the 1st storehouse temperature sensor or the 2nd storehouse temperature sensor, cold-producing medium is supplied with the control gear of either party in above-mentioned series connection cooling circuit or the above-mentioned bypass circulation; Above-mentioned series connection cooling circuit reduces pressure after the condensation of refrigerant of discharging from compressor, returns compressor again after supplying with the 1st evaporator, the 2nd evaporator successively; Above-mentioned bypass cooling circuit reduces pressure after the condensation of refrigerant of discharging from compressor, returns compressor after supplying with the 2nd evaporator;
Above-mentioned control gear, when the detected temperatures of the 1st storehouse temperature sensor for predetermined storehouse in design temperature when above and the detected temperatures of the 1st evaporator temperature sensor be that upper limit evaporator temperature is when above, the series connection cooling circuit is begun the supply system cryogen, when the detected temperatures of the 1st evaporator temperature sensor arrives the lower limit evaporator temperature, stop series connection cooling circuit the supply system cryogen;
When the series connection cooling circuit is stopped the supply system cryogen, more than the detected temperatures of the 2nd storehouse temperature sensor is for predetermined storehouse temperature and the detected temperatures of the 2nd evaporator temperature sensor be that upper limit evaporator temperature is when above, beginning is to bypass cooling circuit the supply system cryogen, when the detected temperatures of the 2nd evaporator temperature sensor has arrived the lower limit evaporator temperature, stop to bypass cooling circuit the supply system cryogen.
4. the cooling device of automatic vending machine as claimed in claim 3 is characterized in that, above-mentioned evaporator temperature set mechanism is set in upper limit evaporator temperature more than 0 ℃.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001059627 | 2001-03-05 | ||
| JP2001059627A JP4696375B2 (en) | 2001-03-05 | 2001-03-05 | Vending machine cooling system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1373455A CN1373455A (en) | 2002-10-09 |
| CN1172273C true CN1172273C (en) | 2004-10-20 |
Family
ID=18919164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB01140146XA Expired - Fee Related CN1172273C (en) | 2001-03-05 | 2001-11-27 | Cooling device for vendor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4696375B2 (en) |
| CN (1) | CN1172273C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4529727B2 (en) * | 2005-02-23 | 2010-08-25 | 富士電機リテイルシステムズ株式会社 | Refrigerant circuit |
| JP4600212B2 (en) * | 2005-08-23 | 2010-12-15 | 株式会社デンソー | Supercritical refrigeration cycle equipment |
| JP4715436B2 (en) * | 2005-10-07 | 2011-07-06 | パナソニック株式会社 | Cooling system and vending machine using the same |
| KR101314676B1 (en) * | 2007-05-25 | 2013-10-07 | 엘지전자 주식회사 | Refrigerating system and control method thereof |
| US7891200B2 (en) * | 2007-12-12 | 2011-02-22 | Pepsico, Inc. | Vending machine improvement |
| WO2010008611A2 (en) * | 2008-07-18 | 2010-01-21 | Greenbev, Llc. | On demand consumable product heating and/or cooling dispenser |
| CN111338400B (en) * | 2020-03-10 | 2021-03-16 | 浙江工业大学 | Beverage vending machine temperature control method based on cloud platform |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3203139B2 (en) * | 1995-01-13 | 2001-08-27 | 三洋電機株式会社 | Vending machine cooling system |
| JP3422120B2 (en) * | 1995-02-06 | 2003-06-30 | 富士電機株式会社 | Vending machine cooling system |
| JP3799655B2 (en) * | 1996-03-29 | 2006-07-19 | 富士電機リテイルシステムズ株式会社 | Vending machine cooling system |
| JP3886190B2 (en) * | 1996-12-20 | 2007-02-28 | 株式会社東芝 | vending machine |
| JPH11134547A (en) * | 1997-10-31 | 1999-05-21 | Matsushita Refrig Co Ltd | Vending machine |
| JP3700362B2 (en) * | 1997-12-05 | 2005-09-28 | 富士電機リテイルシステムズ株式会社 | Vending machine fan control device |
-
2001
- 2001-03-05 JP JP2001059627A patent/JP4696375B2/en not_active Expired - Lifetime
- 2001-11-27 CN CNB01140146XA patent/CN1172273C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2002260081A (en) | 2002-09-13 |
| JP4696375B2 (en) | 2011-06-08 |
| CN1373455A (en) | 2002-10-09 |
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