CN1888750A - Ultra-low temperature freezing cabinet temperature controlling device - Google Patents
Ultra-low temperature freezing cabinet temperature controlling device Download PDFInfo
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- CN1888750A CN1888750A CN 200610043386 CN200610043386A CN1888750A CN 1888750 A CN1888750 A CN 1888750A CN 200610043386 CN200610043386 CN 200610043386 CN 200610043386 A CN200610043386 A CN 200610043386A CN 1888750 A CN1888750 A CN 1888750A
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Abstract
This invention discloses a kind of temperature controlling device of super-low temperature refrigerator. The pressure sensor collects varieties of pressure signals of super-low temperature refrigerator system and connects to main controlling board interface through heat resistance module and data conductive wire. After centralized processing all the signals, the main controlling board controls high temperature compressor and low temperature through relay. The liquid crystal operating screen connects to R232 interface on the main controlling board through data line 232 cable. The signal- sending end connects to the relay and alarm. The main controlling board PLC communicating interface connects to local computer or network. The temperature in the box is automatically controlled. The temperature in the box, the temperature of absorbed air and the environmental temperature can be automatically displayed. This invention can also alarm under super high temperature and super low temperature. It also alarm when refrigerating system has troubles or power turns off. This invention can use printer to print. The computer can be used to remote control many medical super-low temperature refrigerator through data bus or internet.
Description
Technical field:
The present invention relates to a kind of control device, particularly a kind of ultra-low temperature freezing cabinet temperature controlling device.
Background technology:
As everyone knows, in the medical super low-temperature refrigerator, what stored mostly is medical treatment, scientific research and testing are used bioactivator, vaccine for example, blood plasma, biological reagent etc., in case refrigerator breaks down, bioactivator will go bad or lose efficacy, cause great irretrievable losses such as human life safety and test data mistake, the temperature control equipment of existing super low-temperature refrigerator has mechanical temperature control type, the electric simulation temperature control type, its weak point one is that the scene that its temperature control equipment can only carry out the separate unit super low-temperature refrigerator is controlled, and can not controlling to many super low-temperature refrigerators, particularly to the remote control of super low-temperature refrigerator, the 2nd, ultra-low temperature freezing cabinet temperature controlling device can only carry out artificial thermograph, can not realize real-time automatic temperature-adjusting record, historical temperature is checked and is printed original temperature control equipment poor reliability.
Summary of the invention:
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art, temperature (30 ℃～-90 ℃), environment temperature and EAT demonstration automatically, superhigh temperature and ultralow temperature warnings, breakdown of refrigeration system warning, power alarm, complete machine running temperature real time record and inquiry in a kind of reasonable in design, automatic control box are provided, and the ultra-low temperature freezing cabinet temperature controlling device that can move by many medical super low-temperature refrigerators of computer remote control operation by data/address bus or Internet.
The present invention can reach by following measure:
A kind of ultra-low temperature freezing cabinet temperature controlling device, be provided with super low-temperature refrigerator, super low-temperature refrigerator is provided with high temperature compressed machine, cryogenic compressor, it is characterized in that being provided with temperature sensor (the temperature inside the box sensor, the EAT sensor, environment temperature sensor), pressure sensor, liquid crystal operation screen (DELTA) TP04, master control borad PLC, alarm and computer, pressure sensor is gathered high temperature compressed machine, the pressure signal of cryogenic compressor, be transferred to master control borad by circuit, the temperature inside the box sensor, the EAT sensor, the corresponding temperature signal of environment temperature sensor collection is connected with master control borad PLC interface by resistance thermometry RZM through data conductor, master control borad PLC focuses on the back to all pressure and temperature signals and controls high temperature compressed machine by relay, cryogenic compressor, liquid crystal operation screen is connected with R232 interface on the master control borad PLC by data wire 232 cables, master control borad PLC sends signal end and is connected with alarm with relay, and master control borad PLC communication interface is connected with local computer or network.
High temperature compressed machine of the present invention, cryogenic compressor are the piston type full closed formula refrigeration compressors that cascade refrigeration system high temperature, low temperature level adopt, power is below 1500 watts, control the 220V relay by the master control borad output signal of telecommunication, and then control the work of compressor by relay.
Liquid crystal operation of the present invention screen is made up of (DELTA) TP04 series programmable display, the LCM liquid crystal display, and the multilingual operation interface, by master control borad control, can the demonstration of realization information and the setting of refrigeration system parameter.
Master control borad of the present invention is made up of microprocessor (DELTA) PLC and resistance thermometry RZM, is the control centre of whole device, receives and send all temperature, pressure and signals such as warning, control, controls all peripheral electric components.
Alarm of the present invention is made up of sound, light alarm element, by master control borad control, has superhigh temperature, ultralow temperature is reported to the police, and breakdown of refrigeration system is reported to the police, and also has outer power supply source when cutting off the power supply, and is reported to the police by storage battery power supply.
The present invention has following characteristics: ultra-low temperature freezing cabinet temperature controlling device belongs to the electron number font, the support multilingual shows, can realize human-computer dialogue, information storage is big, the ultralow temperature temperature controlling range is wide :-30 ℃～-90 ℃, the various faults of refrigeration system all have the indication of warning, complete machine history run thermograph and inquiry also can insert printer prints, carry RS232 and two kinds of communication interfaces of RS485 by PLC, built-in MODBUS standard communications protocol, can insert stand-alone or network monitoring system easily even realize that whole device has digitlization by many medical super low-temperature refrigerator operations of internet Long-distance Control, intelligent, networking.
Description of drawings:
Fig. 1 is a structured flowchart of the present invention.
Fig. 2 is circuit theory diagrams of the present invention.
Fig. 3, Fig. 4 are master's surface charts of the present invention.
Fig. 5 is temperature demonstration/menu interface figure of the present invention.
Fig. 6 is that temperature of the present invention is provided with surface chart.
Fig. 7 is that parameter of the present invention is provided with surface chart.
Fig. 8 is a clock setting surface chart of the present invention.
Fig. 9 is instant fault display interface figure of the present invention.
Figure 10 is historical failure query interface figure of the present invention.
Figure 11 is historical temperature query interface figure of the present invention.
Figure 12 is one day of the present invention temperature curve display interface figure.
Figure 13 is battery of the present invention, ann test surface chart.
Figure 14 is a hand switch condition prompting surface chart of the present invention.
Figure 15 is that master reference fault of the present invention ejects surface chart.
Figure 16 is a compressor operating statistics surface chart of the present invention.
Figure 17 is power-off time query interface figure of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described:
As Fig. 1, shown in Figure 2, a kind of ultra-low temperature freezing cabinet temperature controlling device, be provided with super low-temperature refrigerator, super low-temperature refrigerator is provided with high temperature compressed machine 1, cryogenic compressor 2, feature is to be provided with temperature sensor, temperature sensor comprises the temperature inside the box sensor 3, EAT sensor 4, environment temperature sensor 5, pressure sensor 6, liquid crystal operation screen (DELTA) TP04, master control borad 7, master control borad 7 adopts PLC7, alarm 8 and computer 9, pressure sensor 6 is gathered high temperature compressed machine 1, the pressure signal of cryogenic compressor 2, be transferred to master control borad 7 by circuit, the temperature inside the box sensor 3, EAT sensor 4, environment temperature sensor 5 is gathered corresponding temperature signal and is connected with master control borad PLC interface by resistance thermometry RZM through data conductor, master control borad PLC focuses on the back to all pressure and temperature signals and controls high temperature compressed machine 1 by relay, cryogenic compressor 2, the liquid crystal operation screen is by data wire 232 cables and master control borad PLC
On the R232 interface be connected, master control borad PLC sends signal end and is connected with alarm 8 with relay, master control borad PLC communication interface is connected with local computer 9 or network.
The present invention at first is input in the master control borad among the PLC by computer software programs, operation TP04 LCDs is provided with desired parameters, master control borad PLC is by handling the various sensor signals of being gathered, the operation of control super low-temperature refrigerator complete machine, the inquiry of A.T.C, demonstration and record operational factor and temperature, historical temperature and operational factor, the various faults of refrigeration system all have the indication of warning, directly insert serial ports of computers by the RS485/RS232 converter and realize PC control; Insert data/address bus or Internet by many machine operations of computer Local or Remote straighforward operation.
Ultralow temperature temperature control equipment control method is as follows:
1. method of operating:
Connect power supply, start-up picture shown in guidance panel shows shows " safe and sound " trade mark.Automatically enter Fig. 3, main interface shown in Figure 4 then.
1) main interface:
Key frame shows the temperature inside the box, current calendar and clock, the running status of machine.
Key frame also shows current calendar, clock.
" the historical temperature of F0 " prompting key frame is checked the interface by the turning extremely historical temperature of F0." nextpage " prompting is by the page turning of " PgDn " key.
2) temperature demonstration/menu interface, see shown in Figure 5:
Key frame by the page turning of " PgDn " key to temperature demonstration/menu interface as shown in Figure 5.Show current environmental temperature, the condenser EAT.Menu prompt: can enter parameter by F1 picture is set, can enter the fault inquiry picture, can enter the display frame of machine operation statistical information, can enter the battery testing picture by F4 by F3 by F2.
Other pictures can be got back to key frame by " Left " key.
3) temperature is provided with the interface, as shown in Figure 6:
Temperature demonstration/menu interface can enter temperature parameter shown in Figure 6 by F1 picture is set.This picture can be provided with the temperature inside the box, temperature-controlled precision.
The temperature inside the box is set, and temperature-controlled precision must input user cipher (" 222222 ").
The temperature inside the box method to set up: press the F0 key, enter password input picture, the input user cipher is by confirming (Enter) key.Correct as password, can enter numerical value picture is set.Numerical value is provided with " Left " in the picture, and " Right " key is used for selecting the position of desire modification, and " Up ", " Down " key is used for increasing and decreasing the numerical value of selected bits.Also available F0～F9 comes direct input value 0～9.
By F1 temperature-controlled precision is set, method is the same.
4) parameter is provided with the interface, as shown in Figure 7:
Temperature parameter is provided with picture and by " PgDn " key page turning to parameter shown in Figure 7 picture is set.This picture can be provided with the overtemperature alarm temperature rise, condenser air intake alarm temperature, sensor error offset correction values.Above parameter is provided with input system password (" 333333 ").
Sensor offset is used for translation and proofreaies and correct the temperature inside the box sensor.Scope-9.9 ℃ ~ 9.9 ℃ is set.
Menu prompt " F2 clock setting " prompting is pressed the page turning of F2 key to the clock setting interface.
5) clock setting interface, as shown in Figure 8:
Parameter is provided with the page turning of picture F2 key to clock setting shown in Figure 8 interface.This picture can be revised calendar, clock.Must input system password (" 333333 ").
6) instant fault display interface, as shown in Figure 9:
Break down as unit, eject interface shown in Figure 9 automatically, show present unit fault.But press F0 key temporary close audible alarm.Can enter the historical failure query interface by the F1 key.
When at present unit has fault such as the artificial image switching of user, this picture ejected and audible alarm automatically in per 120 seconds.
7) historical failure query interface
System can write down the fault that takes place in 30 unit operation history, record trouble type, the time that fault takes place.After the system log (SYSLOG) fault surpassed 30, failure logging was the earliest covered by new record.System only writes down 30 failure loggings of nearest generation.
But interface query history failure logging shown in Figure 10.Press the F0 key, behind the input system password (" 333333 "), can remove all historical failure records.
Press F1, F2 key roll display log history failure logging, as shown in figure 10:
8) historical temperature query interface, as shown in figure 11:
System continues record unit the temperature inside the box in service, per hour writes down once and is stored in the PLC power down and keep the district.System can preserve the thermograph of 110 days (every day 24 times).After 110 days, Ji Lu data are covered by up-to-date data at first, and system preserves nearest 110 days thermograph.
But interface query history thermograph shown in Figure 11.Press F0, the F1 key need to select the date of inquiry, presses F2, and the F3 key is inquired about each thermograph constantly in this date.Can show by F4 and to choose the temperature variation curve on the same day on date that to inquire about.
9) one day temperature curve display interface, as shown in figure 12:
Historical temperature query interface can show the temperature variation curve on the same day on date that will inquire about of choosing shown in Figure 12 by F4.
10) battery, ann test interface:
The user should make regular check on battery, whether the power alarm function is normal.Temperature demonstration/menu interface (Fig. 3, Fig. 4) can enter battery testing picture shown in Figure 13 by F4.
Do not check that as surpassing 60 days battery, power alarm function, this picture eject the prompting user automatically and carry out daily detection.
Picture shows the fate detect, press the F0 key, normally then can hear chimes of doom, discharges this key chimes of doom and stops the fate zero clearing that the while detects.As not hearing that by the F0 key chimes of doom illustrates that then battery, cut-offing alarming circuit are undesired.Return main interface by the F0 key.
11) hand switch condition prompting interface, as shown in figure 14:
System has the handpress power up function.When using high temperature, the hand-operated forced start of low temperature press hand switch to freeze just in case automatic control system is malfunctioning.
There is outage audible alarm function in system, and the acoustic alarm hand switch disconnects can close audible alarm.
After these three hand switches were positioned at electric appliance box, normal condition was for being in inoperative position (position of the switch is downward).
Figure 14 shows that hand switch condition prompting picture.When the user with three hand switches in any when up dialing to manual active position, this picture ejects prompting user attention system automatically and is in abnormal condition.
As the artificial image switching of user, per 120 seconds these pictures eject the prompting user hand switch position that resets automatically.
Return main interface by " Left " key.
12) the master reference fault ejects the interface, as shown in figure 15:
During the master reference fault, eject picture hint image shown in Figure 15 automatically.This moment, press moved with 10 minutes fixed intervals start-stops.
13) compressor operating statistics interface, as shown in figure 16:
System is the high cryogenic compressor number of starts of statistics and total hours of operation automatically.
Temperature demonstration/menu interface (Fig. 5) can enter compressor operating statistical information query interface shown in Figure 16 by F4.Enter power-off time query interface shown in Figure 17 by " nextpage ".
14) power-off time query interface, as shown in figure 17:
System adds up power-off time last time automatically, and the maximum temperature that reaches in the case between this service restoration time and turnoff time also is shown in power-off time query interface shown in Figure 17.
2. communication interface
This control system PLC carries RS232 and two kinds of communication interfaces of RS485, and built-in MODBUS standard communications protocol can insert stand-alone or network monitoring system easily even realize passing through the internet remote monitoring.
RS232 interface attended operation panel.Also can directly connect serial ports of computers realizes PC control or connects remote computer by modem realizing the strange land monitoring, safeguarding.
The RS485 interface is idle at present, can use for the user, is used for:
1 directly connects serial ports of computers by the RS485/RS232 converter realizes PC control.More than 2 system (nearly 32) can interconnect and form the industry control net and realize that many machines in same scene manage by computer integrated monitoring.3 can directly be connected with mini-printer, carry out the printing of data and curve.
Claims (6)
1, a kind of ultra-low temperature freezing cabinet temperature controlling device, be provided with super low-temperature refrigerator, super low-temperature refrigerator is provided with high temperature compressed machine, cryogenic compressor, it is characterized in that being provided with temperature sensor (the temperature inside the box sensor, EAT sensor, environment temperature sensor), pressure sensor, liquid crystal operation screen, master control borad, alarm, reaches computer.Pressure sensor is gathered high temperature compressed machine, the pressure signal of cryogenic compressor, be transferred to master control borad by circuit, the temperature inside the box sensor, the EAT sensor, environment temperature sensor is connected with interface on the master control borad by resistance thermometry through data conductor, master control borad focuses on the back to all pressure and temperature signals and controls high temperature compressed machine by relay, cryogenic compressor, liquid crystal operation screen is connected with R232 interface on the master control borad by data wire 232 cables, master control borad sends signal end and is connected with alarm with relay, and the master control borad communication interface is connected with local computer or network.
2, a kind of ultra-low temperature freezing cabinet temperature controlling device according to claim 1, it is characterized in that described high temperature compressed machine, cryogenic compressor are the piston type full closed formula refrigeration compressors that the cascade refrigeration system adopts, power is below 1500 watts, control the 220V relay by the master control borad output signal of telecommunication, and then control the work of compressor by relay.
3, a kind of ultra-low temperature freezing cabinet temperature controlling device according to claim 1, it is characterized in that described liquid crystal operation screen is made up of (DELTA) TPO4 series programmable display, the LCM liquid crystal display, support multilingual, can realize man-machine direct dialogue, temperature (30 ℃～-90 ℃) in the automatic control box.
4, a kind of ultralow temperature temperature control equipment according to claim 1 is characterized in that described master control borad is made up of microprocessor (DELTA) PLC and resistance thermometry RZM.
5, a kind of ultra-low temperature freezing cabinet temperature controlling device according to claim 1, it is characterized in that described have superhigh temperature warning, ultralow temperature warning, breakdown of refrigeration system warning, power alarm, alarm is made up of sound, light alarm element, is controlled by master control borad.
6, a kind of ultralow temperature temperature control equipment according to claim 1, it is characterized in that described master control borad communication interface is connected with local computer or network, operate the operation of many medical super low-temperature refrigerators by data/address bus or Internet by computer remote control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610043386 CN1888750A (en) | 2006-03-21 | 2006-03-21 | Ultra-low temperature freezing cabinet temperature controlling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610043386 CN1888750A (en) | 2006-03-21 | 2006-03-21 | Ultra-low temperature freezing cabinet temperature controlling device |
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| Publication Number | Publication Date |
|---|---|
| CN1888750A true CN1888750A (en) | 2007-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610043386 Pending CN1888750A (en) | 2006-03-21 | 2006-03-21 | Ultra-low temperature freezing cabinet temperature controlling device |
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| CN (1) | CN1888750A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102722129A (en) * | 2012-06-21 | 2012-10-10 | 刘文化 | Method for monitoring plasmogen beer freshness keeping equipment |
| CN105015939A (en) * | 2015-07-03 | 2015-11-04 | 青岛澳柯玛超低温冷冻设备有限公司 | Low-temperature freezer |
| CN106125650A (en) * | 2016-07-29 | 2016-11-16 | 广州奥松电子有限公司 | A kind of monitoring system of medicine refrigerator-freezer |
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
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2006
- 2006-03-21 CN CN 200610043386 patent/CN1888750A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102722129A (en) * | 2012-06-21 | 2012-10-10 | 刘文化 | Method for monitoring plasmogen beer freshness keeping equipment |
| CN105015939A (en) * | 2015-07-03 | 2015-11-04 | 青岛澳柯玛超低温冷冻设备有限公司 | Low-temperature freezer |
| CN106125650A (en) * | 2016-07-29 | 2016-11-16 | 广州奥松电子有限公司 | A kind of monitoring system of medicine refrigerator-freezer |
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US11919363B2 (en) | 2017-08-25 | 2024-03-05 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
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