CN111880594A - Medical fridge of reduction humiture fluctuation - Google Patents
Medical fridge of reduction humiture fluctuation Download PDFInfo
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- CN111880594A CN111880594A CN202010800431.1A CN202010800431A CN111880594A CN 111880594 A CN111880594 A CN 111880594A CN 202010800431 A CN202010800431 A CN 202010800431A CN 111880594 A CN111880594 A CN 111880594A
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- 238000001514 detection method Methods 0.000 claims abstract description 53
- 238000007789 sealing Methods 0.000 claims abstract description 35
- 238000012544 monitoring process Methods 0.000 claims description 68
- 230000001105 regulatory effect Effects 0.000 claims description 40
- 238000010438 heat treatment Methods 0.000 claims description 20
- 238000007791 dehumidification Methods 0.000 claims description 16
- 238000009413 insulation Methods 0.000 claims description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims description 9
- 239000010935 stainless steel Substances 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 claims description 6
- 230000000670 limiting effect Effects 0.000 claims description 3
- 230000002457 bidirectional effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 238000005057 refrigeration Methods 0.000 description 15
- 238000005259 measurement Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 238000004321 preservation Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 239000003814 drug Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 238000010408 sweeping Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229960005486 vaccine Drugs 0.000 description 1
- -1 vaccines Substances 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
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Abstract
The invention discloses a medical refrigerator capable of reducing temperature and humidity fluctuation. Eighteen temperature and humidity detection devices are arranged on the lower end face of each supporting plate, so that the temperature and humidity of an object placing area can be monitored in real time; the temperature and humidity detection device who adopts for having the automatic detection device who judges the function of misaligning in this application, so do not worry because of temperature and humidity sensor damages and detect inaccurate and then cause the problem that the storage article became invalid, in addition, when the sealing door of this application was opened to the staff, PLC controller meeting automatic control this application produced the air curtain, has effectively solved and has caused the big problem of humiture fluctuation range because of opening the sealing door, shortens to resume to the required time of setting value.
Description
Technical Field
The invention belongs to the technical field of medical refrigerating boxes, and particularly relates to a medical refrigerating box capable of reducing temperature and humidity fluctuation.
Background
The medical refrigerator is mainly used for storing articles such as medicines, vaccines, blood, standard samples, biological reagents and the like, and has strict requirements on temperature and humidity. When the articles are taken and placed, the temperature and humidity in the refrigerating box can be changed rapidly, in the medical refrigerating box which is commonly used at present, one to two temperature and humidity sensors are arranged, the temperature and humidity in the box can be adjusted manually or automatically according to the display values of the one to two temperature and humidity sensors, the medical refrigerating box is used for storing articles in multiple layers, the temperature and the humidity in each layer are different, even if the temperature and the humidity in the same layer are obviously different due to position reasons, particularly, the temperature and humidity fluctuation is obvious after the refrigerating sealing door is opened to take and place the articles, and the temperature and the humidity exceed the allowable fluctuation range, so that the time for recovering to the original set temperature and humidity is longer. Therefore, the medical refrigerator capable of effectively reducing temperature and humidity fluctuation is specially developed by the company.
Disclosure of Invention
In order to make up the defects of the prior art, the invention provides a medical refrigerating box capable of reducing temperature and humidity fluctuation.
The technical scheme of the invention is as follows:
the utility model provides a medical fridge that reduces humiture and fluctuation, includes the box shell, the box shell is articulated to be connected with two sealing door, two still be equipped with a contact switch respectively between sealing door and the box shell, contact switch is current mechanical contact switch, mechanical contact switch's static contact is fixed on the box shell, the moving contact is fixed on sealing door, and when the staff closed sealing door promptly sealing door and was located the position of closed box shell, contact switch is the closure state, and when the staff opened sealing door promptly sealing door and switched over to the position of opening the box shell from the position that is located closed box shell, contact switch switched over to the off-state from the closure state, be equipped with the shutter on the front end face of box shell lower part, the lower extreme fixedly connected with box bottom plate of box shell, be fixed with refrigerating system on the box bottom plate, The system comprises a heating system, an exhaust fan A, a temperature adjusting unit and a humidity adjusting unit;
the temperature adjusting unit comprises an electric control adjusting valve C and an electric control adjusting valve D, the refrigerating system, the heating system and the exhaust fan A are all positioned in the box body shell, and the refrigerating system and the heating system in the application are both used in the medical refrigerating box in the prior art;
the refrigeration system is connected with an electric control regulating valve C through a pipeline, the heating system is connected with an electric control regulating valve D through a pipeline, the electric control regulating valve C and the electric control regulating valve D are respectively connected with two joints of a tee joint through pipelines, the other joint of the tee joint is connected with an air inlet of an air exhauster A through a pipeline, an air outlet of the air exhauster A is connected with one port of a tee joint pipe, the other two ports of the tee joint pipe are respectively connected with the electric control regulating valve A and an electric control regulating valve B, both the electric control regulating valve A and the electric control regulating valve B are connected with short pipes, both the short pipes upwards penetrate through a box heat insulation layer, an outlet of the short pipe positioned on the left side is positioned in a box air duct; a box body air duct is formed between the box body inner container and the box body heat insulation layer, two baffle plates in a shape like a Chinese character 'hui' are arranged between the box body inner container and the box body heat insulation layer, and an air curtain air duct is formed between the two baffle plates;
the box body heat preservation layer is internally connected with a box body liner through a support rod, the upper end face of the box body liner positioned in the air curtain air duct is uniformly provided with air outlet holes, the rear end face of the box body liner is fixedly provided with a plurality of strip-shaped air outlets A which are longitudinally arranged in a transverse row, and the rear part of the rear end face of the box body liner is also provided with a plurality of air volume adjusting devices for adjusting the air volume of the strip-shaped air outlets A in the transverse row; the inner container of the box body is divided into a plurality of temperature and humidity monitoring areas, and the number of the temperature and humidity monitoring areas is consistent with that of the supporting plates;
the lower end face of each supporting plate is fixedly provided with a plurality of temperature and humidity detection devices for detecting the temperature and humidity of corresponding temperature and humidity monitoring areas, the PLC is input into a refrigerating box use control program and image analysis software, and the output end of the PLC is in bidirectional electric connection with the display screen;
the PLC controller is fixedly arranged in the enclosure frame, the display screen is fixedly arranged on the front end face of the enclosure frame, a setting key is further arranged on the display screen, the enclosure frame is fixedly arranged at the upper end of the box body shell, and a monitoring camera is further arranged at the upper right corner of the front end face of the enclosure frame;
the contact switch, the setting key, the monitoring camera, the code scanner and the temperature and humidity detection devices arranged on the lower end face of each supporting plate are connected with the input end of the PLC through electric control wires; and the electric control regulating valve A, B, C, D, the heating system, the refrigerating system and the humidity regulating unit are all connected with the output end of the PLC through electric control wires.
The temperature and humidity detection device is used for temperature and humidity monitoring which is more strict and subdivided, temperature and humidity fluctuation in a large range is reduced, recovery time can be effectively shortened, temperature values and humidity values of different temperature and humidity monitoring areas in the inner container of the box body can be detected by the temperature and humidity detection device of each temperature and humidity monitoring area in real time, and detection values are fed back to the PLC; the contact switch can feed back a signal indicating whether a person opens the sealing door to the PLC in time;
when the PLC detects that the temperature value fed back by the temperature and humidity detection device in a certain temperature and humidity monitoring area is greater than a preset temperature value, the PLC controls the refrigeration system to work, the electric control regulating valve C is opened, the exhaust fan A works and the electric control regulating valve B is opened, and at the moment, cold air generated by the refrigeration system is pumped into the box body air channel by the exhaust fan A; meanwhile, the PLC controller can also control an air quantity adjusting device corresponding to the temperature and humidity monitoring area to work, the air quantity adjusting device works, air outlets of the horizontally arranged strip-shaped air outlets A under the action of the air quantity adjusting device are staggered for a certain distance, and at the moment, pressure air of the box air duct is discharged to the temperature and humidity monitoring area needing refrigeration in the box inner container through the strip-shaped air outlets A which are not shielded on the rear end face of the box inner container to be cooled; when the PLC detects that the temperature value fed back by the temperature and humidity sensing device in the temperature and humidity monitoring area reaches the preset temperature value again, the PLC controls the refrigerating system to work in a power reduction mode, the electric control adjusting valve C is adjusted to a proper position, the rotating speed of the exhaust fan A is reduced, and the electric control adjusting valve B is adjusted to a proper position, so that the temperature of the area part reaches a dynamic stable value;
when the PLC detects that the temperature value fed back by the temperature and humidity detection device in a certain temperature and humidity monitoring area is smaller than a preset temperature value, the PLC controls the heating system to work, the electric control regulating valve D is opened, the exhaust fan A works and the electric control regulating valve B is opened, and at the moment, hot air generated by the heating system is pumped into the box body air duct by the exhaust fan A; meanwhile, the PLC controller can also control an air quantity adjusting device corresponding to the temperature and humidity monitoring area to work, the air quantity adjusting device works, air outlets of the horizontally arranged strip-shaped air outlets A under the action of the air quantity adjusting device are staggered for a certain distance, and at the moment, pressure air of the box air duct is discharged to the temperature and humidity monitoring area needing refrigeration in the box inner container through the strip-shaped air outlets A which are not shielded on the rear end face of the box inner container to be heated; when the PLC detects that the temperature value fed back by the temperature and humidity sensing device in the temperature and humidity monitoring area reaches the preset temperature value again, the PLC controls the heating system to work in a power reduction mode, the electric control regulating valve D is regulated to a proper position, the rotating speed of the exhaust fan A is reduced, and the electric control regulating valve B is regulated to a proper position, so that the temperature of the area part reaches a dynamic stable value;
when the PLC detects that the humidity value fed back by the humidity and temperature detection device in a certain temperature and humidity monitoring area is larger than a preset humidity value, the PLC controls the dehumidification device to perform dehumidification operation on the temperature and humidity monitoring area, and when the PLC detects that the humidity value fed back by the humidity and temperature detection device in the temperature and humidity monitoring area is equal to the preset humidity value again, the PLC controls the dehumidification device to stop the dehumidification operation on the temperature and humidity monitoring area;
when the PLC detects that the humidity value fed back by the temperature and humidity detection device in a certain temperature and humidity monitoring area is smaller than a humidity preset value, the PLC controls the humidification device to humidify the temperature and humidity monitoring area, and when the PLC detects that the humidity value fed back by the temperature and humidity detection device in the temperature and humidity monitoring area is equal to the preset value again, the PLC controls the humidification device to stop humidifying the temperature and humidity monitoring area.
When the use state of the air curtain is in a refrigeration state, for example, in summer, when the PLC receives a signal sent by the contact switch that someone opens the sealing door, the PLC can control the refrigeration system to increase power to work, the electric control regulating valve C is opened to be larger, the rotating speed of the exhaust fan A is increased, and the electric control regulating valve A is also opened to be larger;
the user state of this application is in when refrigerating state, for example in winter, when PLC controller received someone who contact switch sent and opened the signal of sealing door, PLC controller can control heating system increase power work, automatically controlled governing valve D opens to great, air exhauster A rotational speed improves, automatically controlled governing valve A also opens to great, at this moment, more hot-air that heating system produced can be pumped to the air curtain wind channel by air exhauster A in, and form the air curtain through the exhaust vent discharge that is equipped with on the box inner bag up end that is located the air curtain wind channel, effectively reduce the hot-air in the box inner bag and spill over by the sealing door who opens.
Preferably, the humidity adjusting unit comprises a dehumidifying device and a humidifying device, the dehumidifying device comprises a dehumidifying fan, the dehumidifying fan is fixed at the bottom end of the box heat-insulating layer, the dehumidifying fan is connected with a main dehumidifying pipeline, a main electromagnetic valve a is mounted on the main dehumidifying pipeline, the main dehumidifying pipeline penetrates through the box heat-insulating layer, enters a box air duct on the side surface and rises above a supporting plate on the highest layer, the main dehumidifying pipeline is communicated with a box inner container through a plurality of sub-dehumidifying pipelines, the number of the sub-dehumidifying pipelines is consistent with the number of temperature and humidity monitoring areas, the number of the sub-dehumidifying pipelines is consistent with the number of the temperature and humidity monitoring areas, and each sub-dehumidifying pipeline is provided with a sub-pipeline electromagnetic valve a;
the humidifying device comprises a humidity sending fan, the humidity sending fan is fixed at the lower end of a box heat-insulating layer, an inlet of the humidity sending fan is connected with a humidity generator through a pipeline, the humidity generator is fixed at the top of a refrigerating system, the humidity sending fan is connected with a humidity sending main pipeline, a main electromagnetic valve B is mounted on the humidity sending main pipeline, the humidity sending main pipeline penetrates through the box heat-insulating layer, enters a box air duct on the side surface and rises above a supporting plate on the highest layer, the humidity sending main pipeline is communicated with a box inner container through a plurality of humidity sending branch pipelines, each humidity sending branch pipeline is provided with a branch pipeline electromagnetic valve B, the humidity sending branch pipelines and the dehumidifying branch pipelines are arranged side by side, protective screens are further arranged at ports of the humidity sending branch pipelines and ports of the dehumidifying branch pipelines, and the protective screens are fixed on the inner side surface of the; the dehumidification fan, the humidity sending fan, the humidity generator, the main electromagnetic valve A, the main electromagnetic valve B, the branch pipeline electromagnetic valve A and the branch pipeline electromagnetic valve B are all electrically connected with the output end of the PLC, and the PLC can control the fans and the electromagnetic valves.
When the PLC detects that the humidity value fed back by the humidity and temperature detection device in a certain temperature and humidity monitoring area is larger than a preset humidity value, the PLC controls the dehumidifying fan to work, the main electromagnetic valve A and the branch pipeline electromagnetic valve A are opened, air entering between the box body heat insulation layer and the box body shell through the shutter is pumped to the temperature and humidity monitoring area needing dehumidifying to reduce the humidity value, and when the PLC detects that the humidity value fed back by the humidity and temperature detection device in the temperature and humidity monitoring area is equal to the preset humidity value again, the PLC controls the dehumidifying fan to stop working and the main electromagnetic valve A and the branch pipeline electromagnetic valve A are closed; when the PLC detects that the humidity value fed back by the humidity detection device in a certain temperature and humidity monitoring area is smaller than a humidity preset value, the PLC controls the humidity generator and the humidity sending fan to work, the main electromagnetic valve B and the branch pipeline electromagnetic valve B are opened, the humidity sending fan pumps air with high humidity generated by the humidity generator to the temperature and humidity monitoring area needing dehumidification to improve the humidity value, when the PLC detects that the humidity value fed back by the humidity detection device in the temperature and humidity monitoring area is equal to the humidity preset value again, the PLC controls the humidity generator and the humidity sending fan to stop working, and the main electromagnetic valve B and the branch pipeline electromagnetic valve B are closed.
Preferably, the temperature and humidity detection devices are detection devices with an automatic misalignment judgment function, and eighteen temperature and humidity detection devices are uniformly distributed on the lower end face of each supporting plate in a staggered manner; the temperature and humidity detection device comprises a temperature and humidity sensor A and a temperature and humidity sensor B, and the temperature and humidity sensor A is electrically connected with the input end of the PLC; temperature and humidity sensor A and temperature and humidity sensor B are fixed in measuring position department closely adjacently, and are used for measuring temperature value and humidity value under the same operating mode, temperature and humidity sensor A and temperature and humidity sensor B all link to each other with the fixed analog to digital converter's that sets up in enclosing the frame input, analog to digital converter's output links to each other with the fixed input that sets up the singlechip in enclosing the frame, the storage has the control program of whether misaligning through the measurement result of contrast temperature and humidity sensor A and temperature and humidity sensor B in the singlechip, the fixed warning light A that corresponds each temperature and humidity detection device that is equipped with on the display screen, the output of singlechip is connected with the input electricity of PLC controller, warning light A is connected with the output electricity of PLC controller. The temperature and humidity detection device has an automatic misalignment judgment function, the temperature and humidity sensor A is used as a reference sensor, the temperature and humidity sensor B is used as an auxiliary sensor, the single chip microcomputer can judge whether the measurement difference value of the temperature and humidity sensor A and the temperature and humidity sensor B to the same physical quantity meets a specified fluctuation range in real time, when the single chip microcomputer judges that the measurement difference value of the temperature and humidity sensor A and the temperature and humidity sensor B does not meet the specified fluctuation range, the single chip microcomputer sends an abnormal signal to the PLC, and after the PLC detects the abnormal signal sent by the single chip microcomputer, the PLC controls the alarm lamp A corresponding to the temperature and humidity detection device to light a red light to remind a worker; and this above-mentioned temperature humidity transducer A that sets up can feed back the temperature value and the humidity value that it detected to the PLC controller in order to carry out the triggering signal of refrigeration work, heating work, humidification work or dehumidification work as PLC controller control this application.
Preferably, the air quantity adjusting device comprises a horizontal moving plate which is arranged behind the rear end face of the inner container of the box body in a clinging manner, and a plurality of horizontal moving plates respectively correspond to a plurality of horizontal strip-shaped air outlets A which are arranged on the inner container of the box body from top to bottom; each horizontal moving plate is provided with a strip-shaped air outlet B, and the strip-shaped air outlets B and the strip-shaped air outlets A are consistent in number and same in size; the PLC controller can enable the strip-shaped air outlet B and the strip-shaped air outlet A to be completely staggered, staggered by a certain gap relatively or completely overlapped according to the temperature condition fed back by each temperature and humidity detection device.
The rear end face of the box liner is fixedly provided with a plurality of slideways for limiting the horizontal moving plate to move along the left-right direction, each slideway consists of two symmetrically arranged right-angle plates, the upper end of the horizontal moving plate is contacted with the right-angle plate above, and the lower end of the horizontal moving plate is contacted with the right-angle plate below; a pull and push rod is arranged at the right end of each horizontal moving plate, a round hole is formed in the right end of each pull and push rod, a rotating shaft B is inserted in the round hole, the pull and push rods are hinged to a connecting rod through the rotating shaft B, the other end of the connecting rod is hinged to an eccentric wheel through a rotating shaft C, the eccentric wheel is fixed on a motor shaft, and a servo motor is fixed on the inner side surface of a heat insulation layer of a box body through bolts; the servo motor is connected with the output end of the PLC through an electric control wire. In the application, temperature and humidity sensors in the temperature and humidity monitoring areas feed back detected temperature values and humidity values to the PLC, when the PLC detects that the temperature value fed back by the temperature and humidity sensor in one of the temperature and humidity monitoring areas is larger than a preset value, the PLC controls a servo motor corresponding to the temperature and humidity control area to rotate by a certain angle, and the rotation angle of the servo motor can drive the horizontal moving plate to move in the left-right direction so as to change the relative positions of a strip-shaped air outlet B on the horizontal moving plate and a strip-shaped air outlet A on the inner container of the box body; specifically, when the strip-shaped air outlet B is superposed and aligned with the strip-shaped air outlet A, the air volume blown out through the strip-shaped air outlet A between the box body air channels is the largest, and when the strip-shaped air outlet B and the strip-shaped air outlet A are staggered relatively, the air volume is relatively smaller; pressure air in the whole air duct can rapidly enter a corresponding temperature and humidity monitoring area needing refrigeration through the strip-shaped air outlet A; and for those temperature and humidity monitoring areas with temperature values equal to the preset temperature values, the corresponding bar-shaped air outlets B and the bar-shaped air outlets A are kept in a relatively staggered state, at the moment, the pressure air volume blown in through the bar-shaped air outlets A in unit time is small, air between the box air channels is slowly blown into the temperature and humidity monitoring areas which do not need to be refrigerated through the bar-shaped air outlets A, a dynamic stable state is maintained, when the PLC detects that the temperature values fed back by the temperature and humidity sensing devices in the temperature and humidity monitoring areas again reach the preset temperature values, the PLC can control the refrigerating system to work stably at a certain power, the electric control regulating valve C is regulated to a proper position, and the electric control regulating valve B is regulated to a proper position to maintain a dynamic stable.
Preferably, the lighting lamps are arranged near each horizontal row of strip-shaped air outlets A of the inner container of the box body and are electrically connected with the output end of the PLC.
Preferably, box wind channel internal fixation is equipped with wind pressure sensor A, the wind curtain wind channel internal fixation is equipped with wind pressure sensor B, wind pressure sensor A, B all is connected with the input electricity of PLC controller. This above-mentioned setting can be convenient for the PLC controller according to the pressure value of wind pressure sensor A, B feedback, controls air exhauster A's rotational speed, and then reaches the requirement of controlling the interior wind pressure of box wind channel and air curtain wind channel.
Preferably, a code scanner is arranged on the inner side face of the right end face of the box inner container and electrically connected with the input end of the PLC. When the staff was taking article, the sign indicating number processing was swept to the staff of can being convenient for in this aforesaid setting, and the sign indicating number ware of sweeping can be filed for the controller with sweeping the article information feedback that the sign indicating number was handled and is obtained, and the later stage staff of being convenient for consults.
Preferably, enclose the upper right corner of frame front end face and still be equipped with warning light B, warning light B passes through the output of automatically controlled wire and PLC controller and is connected. In the above arrangement, when the PLC controller detects that the humidity value or the temperature value fed back by the temperature and humidity pressure sensor a in any one of the temperature and humidity detection devices is higher than a preset value, the PLC controller controls the warning light to flash red light; when the PLC controller detects that the humidity value or the temperature value fed back by the temperature and humidity sensor reaches a set value, the PLC controller can control the warning lamp to keep green.
Preferably, the box heat-insulating layer comprises two stainless steel plates and a heat-insulating plate arranged between the two stainless steel plates, and the heat-insulating plate is a polyurethane rigid foam plate.
The invention has the beneficial effects that:
when the sealing door is opened, the PLC can automatically control the air curtain generated by the air curtain, so that the problem of large temperature and humidity fluctuation range caused by opening the sealing door is effectively solved, and the time required for recovering the sealing door to a set value is shortened; moreover, temperature and humidity detection device in this application has the automatic judgement and misaligns the function, and its break down can in time be discover, can effectively avoid depositing the loss that medicine or bacterin in this application caused the inefficacy because of temperature, humidity are not normal.
Drawings
FIG. 1 is a front view of the present application;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a left side view of section A-A of FIG. 1;
FIG. 4 is a top view of section C-C of FIG. 3;
FIG. 5 is a right side view of section B-B of FIG. 3;
FIG. 6 is an enlarged view of a portion of FIG. 1 at I;
FIG. 7 is an enlarged view of a portion of FIG. 4 at II;
FIG. 8 is an enlarged view of a portion of FIG. 5 at III;
fig. 9 is a partial enlarged view of the portion iv in fig. 5.
In the figure: 1. a box body shell, 2, a shutter, 3, a sealing door, 4, a surrounding frame, 5, a display screen, 6, a layer A of temperature and humidity display area, 7, a layer B of temperature and humidity display area, 8, a layer C of temperature and humidity display area, 9, a layer D of temperature and humidity display area, 10, a temperature and humidity curve graph display area, 11, a set key, 12, a monitoring camera, 13, a wind curtain air duct, 14, an air outlet, 15, a height adjusting plate, 16, a supporting plate, 17, a temperature and humidity detection device, 18, a temperature and humidity sensor A, 19, a temperature and humidity sensor B, 20, a single chip microcomputer, 21, an analog-to-digital converter, 22, a code scanner, 23, a partition plate, 24, a short pipe, 25, an electric control adjusting valve A, 26, a three-way connecting pipe, 27, a flange plate, 28, an exhaust fan A, 29, an electric control adjusting valve C, 30, an electric control, 34. a box body heat insulation layer 35, a right-angle plate 36, a servo motor 37, a horizontal moving plate 38, vertical strip air outlets A and 39, a box body air duct 40, a box body inner container 41, a box body bottom plate 42, wind pressure sensors A, 43, a PLC controller 44, wind pressure sensors B, 45, shafts A, 46, an eccentric wheel 47, a connecting rod 48, shafts B, 49, vertical strip air outlets B, 50, a push-pull rod 51, a supporting rod 52, a lighting lamp 53, shafts C, 54, an inner stainless steel plate 55, warning lamps A, 56, warning lamps B, 57, a tee joint 58, a contact switch 59, a dehumidification fan 60, a main electromagnetic valve A, 61, a dehumidification main pipeline 62, a humidity generator 63, a humidity sending fan 64, a main electromagnetic valve B, 65, a dehumidification main pipeline 66, a dehumidification branch pipeline 67, a dehumidification branch pipeline 68, a protective net 69 and a branch pipeline electromagnetic valve B, 70. branch pipeline solenoid valve A.
Detailed Description
As shown in fig. 1 to 6, a louver 2 is disposed on a front end surface of a lower portion of a box casing 1, two sealing doors 3 are hinged to the box casing, a contact switch 58 is further disposed between each of the two sealing doors 3 and the box casing 1, the contact switch 58 is an existing mechanical contact switch, a fixed contact of the mechanical contact switch is fixed to the box casing 1, a movable contact of the mechanical contact switch is fixed to the sealing door 3, when a worker closes the sealing door, that is, the sealing door 3 is located at a position for closing the box casing 1, the contact switch 58 is in a closed state, and when the worker opens the sealing door 3, that is, the sealing door 3 is switched from the position for closing the box casing 1 to the position for opening the box casing 1, the contact switch 58 is switched from the closed state to an open state; a refrigerating system 32, a heating system 31 and an exhaust fan A28 are arranged at the lower part in the box body shell 1, the refrigerating system 32, the heating system 31 and the exhaust fan A28 are all fixed on a box body bottom plate 41 through bolts, wherein the refrigerating system 32, the heating system 31 and the exhaust fan A28 are all the refrigerating system 32, the heating system 31 and the exhaust fan A28 used in the medical refrigerator in the prior art; the application also comprises a temperature adjusting unit and a humidity adjusting unit;
wherein, the temperature adjusting unit comprises an electric control adjusting valve C29 and an electric control adjusting valve D30, the refrigerating system 32 is connected with the electric control adjusting valve C29 through a pipeline, the heating system 31 is connected with the electric control adjusting valve D30 through a pipeline, the electric control adjusting valve C29 and the electric control adjusting valve D30 are respectively connected with two joints of a tee joint 57 through pipelines, the other joint of the tee joint 57 is connected with the air inlet of an exhaust fan A28 through a pipeline, the air outlet of the exhaust fan A28 is connected with a tee joint pipe 26 through a flange 27, the tee joint pipe 26 consists of a straight pipe and a U-shaped pipe communicated with the straight pipe, the air outlet of the exhaust fan A28 is connected with the straight pipe of the tee joint pipe 26 through a flange 27, the other two outlets of the tee joint pipe 26, namely two outlets of the U-shaped pipe are respectively provided with the electric control adjusting valve A25 and the, the short pipe 24 upwards passes through the box body heat-insulating layer 34; the outlet of the left short pipe 24 is positioned in a box body air duct formed between the box body inner container 40 and the box body heat insulation layer 34, a wind pressure sensor A42 is arranged in the box body air duct 39, the outlet of the right short pipe 24 is positioned in the air curtain air duct 13, a wind pressure sensor B44 is arranged in the air curtain air duct 13, and the wind pressure sensor A42 and the wind pressure sensor B44 are both connected with the input end of the PLC 43 through electric control wires; two partition plates 23 in a shape like a Chinese character 'hui' are arranged between the box inner container 40 and the box heat-insulating layer 34, an air curtain air duct 29 is formed between the two partition plates 23, and the box air duct 39 and the air curtain air duct 13 are separated by the two partition plates 23; in the application, the initial states of the electric control regulating valves A25, B33, C29 and D30 are closed states, and the electric control regulating valves A25, B33, C29, D30, the heating system 31, the refrigerating system 32 and the exhaust fan A28 are all connected with the output end of the PLC 43 through electric control wires; before the refrigerator is used, a user needs to input a refrigerator use control program and image analysis software into the PLC 43;
the humidity adjusting unit comprises a dehumidifying device and a humidifying device, wherein the dehumidifying device comprises a dehumidifying fan 59, the dehumidifying fan 59 is fixed at the bottom end of a box heat-insulating layer 34 through bolts, the dehumidifying fan 59 is connected with a dehumidifying main pipeline 61, a main electromagnetic valve A60 is installed on the dehumidifying main pipeline 61, the dehumidifying main pipeline 61 penetrates through the box heat-insulating layer 34, enters a box air duct 39 on the side surface and rises above a supporting plate 17 on the highest layer, the dehumidifying main pipeline 61 is communicated with a box inner container 40 through a plurality of dehumidifying branch pipelines 67, the number of the dehumidifying branch pipelines 67 is consistent with the number of temperature and humidity monitoring areas, and each dehumidifying branch pipeline 67 is provided with a branch pipeline electromagnetic valve A70;
the humidifying device comprises a humidity sending fan 63, the humidity sending fan 63 is fixed at the lower end of the box body heat-insulating layer 43 through bolts, the inlet of the humidity sending fan 63 is connected with a humidity generator 62 through a pipeline, the humidity generator 62 is fixed at the top of the refrigerating system 32 through bolts, the humidity sending fan 63 is connected with a humidity sending main pipeline 65, a main electromagnetic valve B64 is arranged on the humidity sending main pipeline 65, the humidity sending main pipeline 65 penetrates through the box body heat-insulating layer 34 to enter the box body air duct 39 on the side and rise above the supporting plate 17 on the highest layer, the humidity sending main pipeline 65 is communicated with the box body liner 40 through a plurality of humidity sending branch pipelines 66, a branch pipeline electromagnetic valve B69 is arranged on each humidity sending branch pipeline 66, the humidity sending branch pipelines 66 and the branch pipelines 67 are arranged side by side, the ports of the humidity sending branch pipelines 66 and the ports of the dehumidification branch pipelines 67 are also provided with protective nets 68; the dehumidification fan 59, the humidity sending fan 63, the humidity generator 62, the main electromagnetic valve a60, the main electromagnetic valve B64, the branch pipeline electromagnetic valve a70 and the branch pipeline electromagnetic valve B69 are electrically connected with the output end of the PLC controller 43, and the PLC controller 43 can control the fans and the electromagnetic valves.
In the application, the upper end surface of the box body inner container 40 positioned in the air curtain air duct is uniformly provided with air outlet holes 14, and the rear end surface of the box body inner container 40 is fixedly provided with four horizontal row strip-shaped air outlets A38; four horizontal moving plates 37 are arranged behind the rear end face of the box inner container 40 in a clinging manner, and the four horizontal moving plates 37 respectively correspond to four horizontal strip-shaped air outlets A38 arranged on the box inner container from top to bottom; each horizontal moving plate 37 is provided with a strip-shaped air outlet B49, the strip-shaped air outlets B49 and A38 are the same in number and size, and the PLC 43 can enable the strip-shaped air outlets B49 and A38 to be completely staggered, relatively staggered by a certain gap or completely overlapped according to the temperature condition fed back by each temperature and humidity detection device 17; four slideways for limiting the horizontal moving plate 37 to move along the left-right direction are fixedly arranged on the rear end face of the box body liner 40, each slideway consists of two symmetrically arranged right-angle plates 35, the upper end of the horizontal moving plate is in contact with the right-angle plate 35 above, and the lower end of the horizontal moving plate 37 is in contact with the right-angle plate 35 below; the right end of each horizontal moving plate 37 is provided with a pulling and pushing rod 50, the right end of each pulling and pushing rod 50 is provided with a round hole, a rotating shaft B48 is inserted into the round hole, the pulling and pushing rod 50 is hinged with a connecting rod 47 through a rotating shaft B48, the other end of the connecting rod 47 is hinged with an eccentric wheel 46 through a rotating shaft C53, the eccentric wheel 46 is fixed on a motor shaft A45, a servo motor 36 is fixed on a stainless steel plate 54 on the inner side surface of a box heat-insulating layer 34 through bolts, and the servo motor 36 is electrically connected with; the servo motor 36 can drive the horizontal moving plate to move along the left and right direction, so as to change the relative position of the strip-shaped air outlet B49 on the horizontal moving plate 37 and the strip-shaped air outlet a38 on the box inner container 40, specifically, when the strip-shaped air outlet B49 and the strip-shaped air outlet a38 are overlapped and aligned, the air volume blown out by the box air duct through the strip-shaped air outlet a38 is the largest, when the strip-shaped air outlet B49 and the strip-shaped air outlet a38 are staggered relatively, the air volume blown out by the box air duct through the strip-shaped air outlet a38 is relatively smaller, and when the strip-shaped air outlet B49 and the strip-shaped air outlet a38 are staggered completely, the strip-shaped air outlet a38 on the box.
Box inner bag 40 passes through bracing piece 51 to be fixed in box heat preservation 34, box heat preservation 34 includes two stainless steel plates and sets up the heated board between two stainless steel plates, the heated board is the rigid foam board of polyurethane, particularly, box inner bag 40 passes through bracing piece 51 to be fixed on the inlayer stainless steel plate of box heat preservation 34, all weld on the medial surface of the 40 left and right sides face of box inner bag has altitude mixture control board 15, top-down evenly is equipped with a plurality of slots on altitude mixture control board 15, these two altitude mixture control boards and the slot on them are the symmetry setting, a horizontally layer board 16 of two slot plug-in connections of same height.
The box body liner 40 is divided into four temperature and humidity monitoring areas along the height direction, the four temperature and humidity monitoring areas can be divided into an A temperature and humidity monitoring area, a B temperature and humidity monitoring area, a C temperature and humidity monitoring area and a D temperature and humidity monitoring area from top to bottom, eighteen temperature and humidity detection devices 17 which can automatically judge misalignment function are arranged on the lower surface of the supporting plate 16 of each temperature and humidity monitoring area in a staggered and uniformly distributed mode, each temperature and humidity detection device comprises a temperature and humidity sensor A18 and a temperature and humidity sensor B19, eighteen temperature and humidity sensors A18 of each temperature and humidity monitoring area are electrically connected with the input end of the PLC 43, and the temperature and humidity values detected by the temperature and humidity sensors A18 are fed back to the PLC 43 to serve as trigger; the temperature and humidity sensor A18 and the temperature and humidity sensor B19 are fixed at the measuring position in close proximity and used for measuring the temperature and humidity under the same working condition, the temperature and humidity sensor A18 and the temperature and humidity sensor B19 are both connected with the input end of the analog-to-digital converter 21 fixedly arranged in the enclosure frame 4, the output end of the analog-to-digital converter 21 is connected with the input end of the single chip microcomputer 20 fixedly arranged in the enclosure frame 4, the single chip microcomputer 20 stores a control program for judging whether the temperature and humidity sensor A18 and the temperature and humidity sensor B19 are misaligned by comparing the measuring results, the display screen 5 is fixedly provided with a warning lamp A55 corresponding to each temperature and humidity detecting device 17, the output end of the single chip microcomputer 20 is electrically connected with the input end of the PLC controller 43, the warning lamp A55 corresponding to each temperature and humidity detecting device is electrically connected with the output end of the PLC controller 43, and the warning lamp A55 corresponding to each temperature, The temperature and humidity display areas 7 and 8 on the B layer, and the temperature and humidity display areas 9 on the C layer and the D layer.
The upper end of box shell 1 is fixed to be equipped with and encloses frame 4, enclose frame 4 front end face and be equipped with display screen 5, display screen 5 is connected with PLC controller 43's two-way electricity, be equipped with on display screen 5 and be used for showing A layer humiture display area 6 of the temperature value and the humidity value that eighteen temperature and humidity detection device measured in A humiture monitoring area, be used for showing B layer humiture display area 7 of the temperature value and the humidity value that eighteen temperature and humidity detection device measured in B humiture monitoring area, be used for showing C layer humiture display area 8 of the temperature value and the humidity value that eighteen temperature and humidity detection device measured in C humiture monitoring area, be used for showing D layer humiture display area 9 of the temperature value and the humidity value that eighteen temperature and humidity detection device measured in D humiture monitoring area, be used for showing arbitrary certain one deck or this application whole average value curve graph's humiture graph display area 10 and the setting key graph 11, a monitoring camera 12 and a warning light B56 are further fixedly arranged on the upper right corner of the front end face of the enclosure frame 4, the PLC 43 and the single chip microcomputer are both fixedly arranged in the enclosure frame 4, and the PLC 43 is located behind the display screen 5; in addition, the inner side surface of the right end surface of the box body liner 40 is provided with a code scanner 22, and the contact switch 58, the setting key 11, the monitoring camera 12 and the code scanner 22 are all connected with the input end of the PLC 43 through electric control wires; the warning lamp B56 is connected with the output end of the PLC controller 43 through an electric control wire.
In this application, the lighting lamps 52 are also arranged near each horizontal row of the strip-shaped air outlets a38 of the box liner 40, and the lighting lamps are electrically connected with the input end of the PLC controller 43.
Taking the application in a refrigeration state as an example, the working principle of the application is detailed:
when a worker opens the sealing door, the PLC receives a signal that the contact switch is fed back and someone opens the sealing door, namely a signal that the contact switch is disconnected, the PLC controls the lighting lamp to be on, and simultaneously, the PLC also controls the refrigeration system to increase power to work, the electric control regulating valve C is opened to the maximum, the air exhaust fan A improves working rotating speed, and the electric control regulating valve A is also opened to the maximum;
after the sealing door is opened, a worker needs to put an article to be stored in the storage device to a code scanner for code scanning, then the article is put on the supporting plate, and then the sealing door is closed; when the staff closed the sealing door, the PLC controller can receive someone and close the signal that the sealing door was closed, and the closed signal of contact switch promptly, and at this moment, the PLC controller can control the light and extinguish, and simultaneously, the work of PLC controller control refrigerating system power reduction, automatically controlled governing valve C adjust to suitable position, air exhauster A reduce operating speed, automatically controlled governing valve A also adjust to suitable position and make the incasement humiture resume to original settlement state in the shortest time. In addition, the worker can also set the temperature and humidity range by operating the setting key, and the monitoring camera can send the image data such as the time for operating the setting key and the set temperature and humidity value to the PLC controller in real time for standby examination;
the temperature and humidity sensors A in the temperature and humidity detection devices in the four temperature and humidity monitoring areas all feed back the detected temperature value and humidity value to the PLC, when the PLC detects that the temperature value fed back by the temperature and humidity sensor A in one temperature and humidity monitoring area is greater than a preset temperature value, the PLC controls the refrigeration system to work by increasing power, controls the electric control regulating valve C to be opened to a certain position, controls the exhaust fan A to work by increasing the rotating speed, controls the electric control regulating valve B to be opened to a certain position, and at the moment, cold air generated by the refrigeration system is pumped into the box body air channel by the exhaust fan A; meanwhile, the PLC controller can also control a servo motor in the air quantity adjusting device corresponding to the temperature and humidity monitoring area to rotate a certain angle, so that a strip-shaped air outlet B corresponding to the temperature and humidity monitoring area is superposed and aligned with a strip-shaped air outlet A, pressure air between box air channels quickly enters the corresponding temperature and humidity monitoring area needing refrigeration through the strip-shaped air outlet A, when the PLC controller detects that the temperature value fed back by the temperature and humidity sensing device in the temperature and humidity monitoring area reaches a preset temperature value again, the PLC controller can control the refrigeration system to recover the original working state, adjust the electric control regulating valve C to a reasonable position, reduce the exhaust fan A to the normal rotating speed to work, adjust the electric control regulating valve B to the reasonable position, and simultaneously control the corresponding servo motor to reversely rotate for a reasonable angle and stop working, wherein the PLC controller is dynamically controlled in a targeted manner along with the change of temperature according to programming, the purpose is to make the temperature in the box body as uniform as possible, and meet the set requirements;
eighteen temperature and humidity detection devices 17 with an automatic misalignment determination function, which are staggered and uniformly distributed on each supporting plate 16, wherein the working conditions of the temperature and humidity detection devices are displayed in corresponding display areas on the display screen 5, for example, when one temperature and humidity detection device in the temperature and humidity monitoring area A fails, the difference between the measurement values fed back to the single chip microcomputer by the temperature and humidity sensor A and the temperature and humidity sensor B in the temperature and humidity detection device is larger when the temperature and humidity detection device fails, when the single chip microcomputer judges that the measurement difference between the temperature and humidity sensor A and the temperature and humidity sensor B does not conform to a specified fluctuation range, the single chip microcomputer sends an abnormal signal to the PLC controller, and when the PLC controller detects the abnormal signal sent by the single chip microcomputer, the PLC controller controls the alarm lamp A corresponding to the temperature and humidity detection device to light up a red light to remind;
eighteen temperature and humidity detection devices are arranged on the lower end face of each supporting plate, so that the temperature and humidity of an object placing area can be monitored in real time; the temperature and humidity detection device who adopts for having the automatic detection device who judges the function of misaligning in this application, so do not worry because of temperature and humidity sensor damages and detect inaccurate and then cause the problem that the storage article became invalid, in addition, when the sealing door of this application was opened to the staff, PLC controller meeting automatic control this application produced the air curtain, has effectively solved and has caused the big problem of humiture fluctuation range because of opening the sealing door, has shortened this application and has recovered to the required time of setting value.
Claims (9)
1. A medical refrigerator for reducing temperature and humidity fluctuation comprises a box body shell and two sealing doors hinged with the box body shell, wherein a contact switch is arranged between each sealing door and the box body shell, a shutter is arranged on the front end face of the lower portion of the box body shell, the lower end of the box body shell is fixedly connected with a box body bottom plate, and a refrigerating system, a heating system and an exhaust fan A are fixed on the box body bottom plate; the method is characterized in that: the device also comprises a temperature adjusting unit and a humidity adjusting unit;
the temperature adjusting unit comprises an electric control adjusting valve C and an electric control adjusting valve D, the refrigerating system and the heating system are respectively connected with the electric control adjusting valve C and the electric control adjusting valve D through pipelines, the electric control regulating valve C and the electric control regulating valve D are respectively connected with two joints of the tee joint through pipelines, the other joint of the tee joint is connected with the air inlet of an exhaust fan A through a pipeline, the air outlet of the exhaust fan A is connected with one port of the tee joint connecting pipe, the other two ports of the three-way connecting pipe are respectively connected with an electric control regulating valve A and an electric control regulating valve B, the electric control regulating valve A and the electric control regulating valve B are both connected with short pipes, the two short pipes both penetrate through the box body heat-insulating layer upwards, the outlet of the short pipe on the left side is positioned in a box body air channel formed between the box body inner container and the box body heat-insulating layer, and the outlet of the short pipe on the right side is positioned in an air curtain air channel; two baffle plates in a shape like a Chinese character 'hui' are arranged between the inner container of the box body and the heat-insulating layer of the box body, and an air curtain air duct is formed between the two baffle plates;
the box body inner container is connected in the box body heat insulation layer through a support rod, air outlet holes are uniformly formed in the upper end face of the box body inner container positioned in the air curtain channel, and a plurality of strip-shaped air outlets A which are transversely and longitudinally arranged are fixedly arranged on the rear end face of the box body inner container; a plurality of air volume adjusting devices for adjusting the air volume of the horizontally arranged strip-shaped air outlets A are arranged behind the rear end surface of the inner container of the box body; the inner side surfaces of the left side surface and the right side surface of the box body liner are respectively welded with a height adjusting plate, a plurality of slots are symmetrically arranged on the two height adjusting plates from top to bottom, the two slots at the same height are connected with the supporting plate in an inserting mode, the box body liner is divided into a plurality of temperature and humidity monitoring areas, and the number of the temperature and humidity monitoring areas is consistent with that of the supporting plates;
the lower end face of each supporting plate is fixedly provided with a plurality of temperature and humidity detection devices, the temperature and humidity detection devices arranged on the lower end face of each supporting plate are electrically connected with the input end of a PLC (programmable logic controller) fixedly arranged in the enclosure frame, and the output end of the PLC is electrically connected with a display screen fixed on the front end face of the enclosure frame in a bidirectional mode; the display screen is also provided with a setting key, the enclosure frame is fixedly arranged at the upper end of the box body shell, and the upper right corner of the front end face of the enclosure frame is also provided with a monitoring camera;
the contact switch, the setting key, the monitoring camera, the code scanner and the temperature and humidity detection devices arranged on the lower end face of each supporting plate are electrically connected with the input end of the PLC; and the electric control regulating valve A, B, C, D, the heating system, the refrigerating system and the humidity regulating unit are all electrically connected with the output end of the PLC.
2. The medical cooler of claim 1, wherein said cooler is adapted to reduce fluctuations in temperature and humidity by: the humidity adjusting unit comprises a dehumidifying device and a humidifying device, the dehumidifying device comprises a dehumidifying fan, the dehumidifying fan is fixed at the bottom end of a box body heat-insulating layer, the dehumidifying fan is connected with a main dehumidifying pipeline, a main electromagnetic valve A is mounted on the main dehumidifying pipeline, the main dehumidifying pipeline penetrates through the box body heat-insulating layer, enters a box body air channel on the side surface and rises above a supporting plate on the highest layer, the main dehumidifying pipeline is communicated with a box body inner container through a plurality of sub-dehumidifying pipelines, the number of the sub-dehumidifying pipelines is consistent with the number of temperature and humidity monitoring areas, the number of the sub-dehumidifying pipelines is consistent with the number of the temperature and humidity monitoring areas, and each sub-dehumidifying pipeline is provided with a sub-pipeline electromagnetic valve A;
the humidifying device comprises a humidity sending fan, the humidity sending fan is fixed at the lower end of a box heat-insulating layer, an inlet of the humidity sending fan is connected with a humidity generator through a pipeline, the humidity generator is fixed at the top of a refrigerating system, the humidity sending fan is connected with a humidity sending main pipeline, a main electromagnetic valve B is mounted on the humidity sending main pipeline, the humidity sending main pipeline penetrates through the box heat-insulating layer, enters a box air duct on the side surface and rises above a supporting plate on the highest layer, the humidity sending main pipeline is communicated with a box inner container through a plurality of humidity sending branch pipelines, each humidity sending branch pipeline is provided with a branch pipeline electromagnetic valve B, protective screens are further arranged at ports of the humidity sending branch pipelines and ports of the dehumidification branch pipelines, and the protective screens are fixed on the inner side surface of the box inner container; the dehumidification fan, the humidity sending fan, the humidity generator, the main electromagnetic valve A, the main electromagnetic valve B, the branch pipeline electromagnetic valve A and the branch pipeline electromagnetic valve B are all electrically connected with the output end of the PLC, and the PLC can control the fans and the electromagnetic valves.
3. The medical cooler of claim 1, wherein said cooler is adapted to reduce fluctuations in temperature and humidity by: the temperature and humidity detection device is a detection device with an automatic misalignment judgment function; the temperature and humidity detection device comprises a temperature and humidity sensor A and a temperature and humidity sensor B, and the temperature and humidity sensor A is electrically connected with the input end of the PLC; temperature and humidity sensor A and temperature and humidity sensor B are fixed in measuring position department closely adjacently, temperature and humidity sensor A and temperature and humidity sensor B all link to each other with the fixed analog to digital converter's that sets up in enclosing the frame input, analog to digital converter's output links to each other with the fixed input that sets up the singlechip in enclosing the frame, still fixed warning light A that is equipped with corresponding each temperature and humidity detection device on the display screen, the output of singlechip is connected with the input electricity of PLC controller, warning light A is connected with the output electricity of PLC controller.
4. The medical cooler of claim 1, wherein said cooler is adapted to reduce fluctuations in temperature and humidity by: the air quantity adjusting device comprises a horizontal moving plate which is arranged at the rear part of the rear end face of the inner container of the box body in a clinging manner, and a plurality of horizontal moving plates respectively correspond to a plurality of horizontal strip-shaped air outlets A which are arranged on the inner container of the box body from top to bottom;
each horizontal moving plate is provided with a strip-shaped air outlet B, and the strip-shaped air outlets B and the strip-shaped air outlets A are consistent in number and same in size; the rear end face of the box liner is fixedly provided with a plurality of slideways for limiting the horizontal moving plate to move along the left-right direction, each slideway consists of two symmetrically arranged right-angle plates, the upper end of the horizontal moving plate is contacted with the right-angle plate above, and the lower end of the horizontal moving plate is contacted with the right-angle plate below; the right end of each horizontal moving plate is provided with a pulling and pushing rod, the right end of each pulling and pushing rod is provided with a round hole, a rotating shaft B is inserted in the round hole, the pulling and pushing rod is hinged to a connecting rod through the rotating shaft B, the other end of the connecting rod is hinged to an eccentric wheel through a rotating shaft C, the eccentric wheel is fixed on a motor shaft, and a servo motor is fixed on the inner side surface of a heat insulation layer of the box body through bolts.
5. The medical cooler of claim 1, wherein said cooler is adapted to reduce fluctuations in temperature and humidity by: and illuminating lamps are arranged near each horizontal row of strip-shaped air outlets A of the inner container of the box body and are electrically connected with the output end of the PLC.
6. The medical cooler of claim 1, wherein said cooler is adapted to reduce fluctuations in temperature and humidity by: the box wind channel internal fixation is equipped with wind pressure sensor A, the wind curtain wind channel internal fixation is equipped with wind pressure sensor B, wind pressure sensor A, B all is connected with the input electricity of PLC controller.
7. The medical cooler of claim 1, wherein said cooler is adapted to reduce fluctuations in temperature and humidity by: and a code scanner is arranged on the inner side surface of the right end surface of the box inner container and is electrically connected with the input end of the PLC.
8. The medical cooler of claim 1, wherein said cooler is adapted to reduce fluctuations in temperature and humidity by: enclose the upper right corner of preceding terminal surface of frame and still be equipped with warning light B, warning light B passes through automatically controlled wire and is connected with the output of PLC controller.
9. The medical cooler of claim 1, wherein said cooler is adapted to reduce fluctuations in temperature and humidity by: the box heat-insulating layer comprises two stainless steel plates and a heat-insulating plate arranged between the two stainless steel plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010800431.1A CN111880594B (en) | 2020-08-11 | 2020-08-11 | Medical refrigerator capable of reducing temperature and humidity fluctuation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010800431.1A CN111880594B (en) | 2020-08-11 | 2020-08-11 | Medical refrigerator capable of reducing temperature and humidity fluctuation |
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| CN111880594B CN111880594B (en) | 2024-07-30 |
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| CN111880594B (en) | 2024-07-30 |
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