LU504251B1 - Refrigeration equipment for novel electric refrigerator vehicle, and control system and control method - Google Patents
Refrigeration equipment for novel electric refrigerator vehicle, and control system and control method Download PDFInfo
- Publication number
- LU504251B1 LU504251B1 LU504251A LU504251A LU504251B1 LU 504251 B1 LU504251 B1 LU 504251B1 LU 504251 A LU504251 A LU 504251A LU 504251 A LU504251 A LU 504251A LU 504251 B1 LU504251 B1 LU 504251B1
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- Prior art keywords
- air
- refrigerator
- control
- air duct
- cold
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000012384 transportation and delivery Methods 0.000 claims abstract description 27
- 239000012782 phase change material Substances 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 238000002844 melting Methods 0.000 claims description 13
- 230000008018 melting Effects 0.000 claims description 13
- 238000012544 monitoring process Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 9
- 238000007726 management method Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 7
- 230000006855 networking Effects 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 239000011232 storage material Substances 0.000 claims description 5
- 239000013589 supplement Substances 0.000 claims description 5
- 230000001502 supplementing effect Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 238000010248 power generation Methods 0.000 claims description 3
- 230000003134 recirculating effect Effects 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 230000008054 signal transmission Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 20
- 230000008859 change Effects 0.000 description 19
- 238000001816 cooling Methods 0.000 description 13
- 238000004422 calculation algorithm Methods 0.000 description 11
- 230000006870 function Effects 0.000 description 7
- 230000003044 adaptive effect Effects 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 230000002068 genetic effect Effects 0.000 description 4
- 230000001143 conditioned effect Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
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- 238000013439 planning Methods 0.000 description 2
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- 230000000007 visual effect Effects 0.000 description 2
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
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- 230000006399 behavior Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- LIWAQLJGPBVORC-UHFFFAOYSA-N ethylmethylamine Chemical compound CCNC LIWAQLJGPBVORC-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00421—Driving arrangements for parts of a vehicle air-conditioning
- B60H1/00428—Driving arrangements for parts of a vehicle air-conditioning electric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00492—Heating, cooling or ventilating [HVAC] devices comprising regenerative heating or cooling means, e.g. heat accumulators
- B60H1/005—Regenerative cooling means, e.g. cold accumulators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3222—Cooling devices using compression characterised by the compressor driving arrangements, e.g. clutches, transmissions or multiple drives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3227—Cooling devices using compression characterised by the arrangement or the type of heat exchanger, e.g. condenser, evaporator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3232—Cooling devices using compression particularly adapted for load transporting vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
- B60P3/20—Refrigerated goods vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Transportation (AREA)
- Power Engineering (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
Disclosed are refrigeration equipment for a novel electric refrigerator vehicle, and a control system and a control method. A regenerator (3) is mounted between a driving cab (2) and a refrigerating chamber (1), and an air duct (10) is mounted in the refrigerating chamber (1); a forced-draft fan is mounted in the air duct (10), and an air deflector (9) is mounted in the air duct. The air duct (10) is provided with an air delivery conduit (5) and a return air duct (6), and fans (4) are mounted at the right ends of the air delivery conduit (5) and a return air duct (6), respectively. The air delivery conduit (5) is mounted on the upper side of the refrigerating chamber (1), and the return air duct (6) is mounted on the lower side of the refrigerating chamber (1).
Description
BL-5673
REFRIGERATION EQUIPMENT FOR NOVEL ELECTRIC REFRIGERATOR -U504251
VEHICLE, AND CONTROL SYSTEM AND CONTROL METHOD
[01] The application claims the priority of Chinese Patent Application No. 202210331184.4 filed on Mar. 30, 2022 and entitled ‘Refrigeration Equipment For
Novel Electric Refrigerator Vehicle, And Control System and Control Method’ in the
Patent Office of the People's Republic of China, the entire disclosure of which is incorporated herein by reference.
[02] The present invention belongs to the technical field of refrigerated transport equipment for automobiles, and particularly relates to refrigeration equipment for a novel electric refrigerator vehicle, and a control system and a control method.
[03] With the improvement of people's living standard, people place increasingly high demands on the quality of medicine and food, thereby driving faster development of the cold chain industry, such as cold stores, refrigerator vehicles and refrigerated incubators. Common refrigerated incubator on the market consists of an incubator body and ice packs, which is mainly applied to cold chain transportation of small-batch cargoes. However, in the prior art, the ice packs need to be pre-treated in advance when the refrigerated incubator is used, and then the ice packs are placed in the incubator body according to operating requirements, which is complex to operate and wastes time and labor. Moreover, plenty of ice packs are pretreated in the cold store, thereby resulting in a high input cost.
[04] Through the above analysis, the problems and defects in the prior art are found as follows: (1) in the prior art, the ice packs need to be pre-treated in advance when the refrigerated incubator is used, and then the ice packs are placed in the incubator body according to operating requirements, which is complex to operate and wastes time and labor. Moreover, pre-treatment of plenty of ice packs is conducted in the cold store, so the input cost is high; and
[05] (2) Refrigerators of the refrigerator vehicles on the market all are arranged at the tops of box bodies in the directions of vehicle heads. Air outlets are usually in a louver form and are seldom provided with guide strips, let alone equipment such as air deflectors or air ducts and forced-draft fans. To solve the above defects, the present invention can improve the heat exchange efficiency of cold air subjected to heat exchange of cold storage to cool a refrigerator van by additionally arranging the air deflector (an air guide duct) and a variable speed forced-draft fan with a guide tuyere.
[06] Solving the above problems and defects has the following significance:
[07] when a cold storage type refrigerator vehicle uses a cold storage mode of the ice packs, ice cakes need to be made in advance by using the cold store. However, no every cold chain enterprise is capable of being equipped with the cold store. Therefore, the cold storage type refrigerator vehicle proposed by the patent is equipped with a small 1
BL-5673 electric refrigerator which can be driven by electric supply as required to supplement LU504251 cold for a cold storage tank. In a transport process, the temperature of the refrigerator van can be maintained in a proper range by the cooling capacity released by the cold storage tank.
[08] In order to solve the problems in the prior art, the present invention provides refrigeration equipment for a novel electric refrigerator vehicle, and a control system and a control method.
[09] The present invention is implemented in the following manner: refrigeration equipment for a novel electric refrigerator vehicle, including:
[10] a regenerator, mounted between a driving cab and a refrigerating chamber, wherein an air duct is mounted in the refrigerating chamber; a forced-draft fan is mounted in the air duct, and an air deflector is mounted on the air channel,
[11] the air duct is equipped with an air delivery conduit and a return air duct, and fans are mounted at the right ends of the air delivery conduit and the return air duct, respectively; and
[12] the air delivery conduit is mounted on the upper side of the refrigerating chamber, and the return air duct is mounted on the lower side of the refrigerating chamber.
[13] Further, the air deflector is equipped with an axial forced-draft fan and an axial return fan; and an air outlet guide plate is mounted on the outer side of the axial forced-draft fan, and a return air guide plate is mounted on the outer side of the axial return fan.
[14] Further, the air duct is filled with a cold storage strip, the cold storage strip is mounted on the side wall or at the top of the refrigerating chamber, and the air deflector is mounted on the cold storage strip; and the fan is arranged in the air deflector, guide plates are mounted at an air outlet and a return air vent, temperature sensors are further mounted at the air outlet and the return air vent, respectively, and the temperature sensors are connected to controllers.
[15] Further, the regenerator includes a phase change material ice melting water channel, a water storage tank with a perpendicularly and movably adjusted bottom plate, and a phase change material ice storage tank with a movable upper plate and a fixed bottom plate; the water storage tank is connected to a pump body through a conduit, the pump body is connected to the phase change material ice melting water channel through a conduit, and the phase change material ice melting water channel is provided with a return air heat exchange air duct; a return fan is mounted in the return air heat exchange air duct, the return air heat exchange air duct is connected to a cold air duct through an air tube, a forced draft fan is mounted in the cold air duct, and the cold air duct is arranged corresponding to the phase change material ice storage tank;
[16] the phase change material ice storage tank is connected to an evaporator, and the evaporator is connected to an electronic expansion valve through an air tube; and the electronic expansion valve is connected to a condenser, the condenser is connected to a vehicle-mounted electric driven compressor, and the vehicle-mounted electric driven 2
BL-5673 compressor is connected to the evaporator. LU504251
[17] The other objective of the present invention is to provide a refrigeration control system for a novel electric refrigerator vehicle, including refrigerating equipment; a cold storage module that stores cold by utilizing the refrigerating equipment;
[18] a signal transmission module that supports linking of a plurality of devices for simultaneous working by taking a CAN bus as a transmission medium and an iCAN protocol as an upper layer protocol to achieve multi-node control and remote analog/digital quantity detection and to achieve remote detection of the refrigerating equipment of the refrigerator vehicle through a GPRS module;
[19] a temperature acquisition module that detects the temperature field in a refrigerator van by utilizing a plurality of temperature sensors mounted in different positions;
[20] a remote management module that transmits state parameters in the refrigerator van to a remote service platform in real time by utilizing the 5G Internet of vehicles technology;
[21] a GPS module, configured to position the refrigerator vehicle and to transmit position data to the cloud;
[22] a variable frequency fan drive module, configured to perform drive control on operation of a fan according to a control command,
[23] a variable frequency compressor drive module, configured to perform drive control on operation of a vehicle-mounted electric driven compressor according to a control command;
[24] a power supply module, configured to provide a power supply for the overall equipment; and
[25] a master control module, configured to perform coordination control on work of each controlled device by utilizing controllers.
[26] Further, the power supply module supplies power in a combined power supply mode with a storage battery, a photovoltaic cell, roof axial-flow type wind power generation and an electric supply.
[27] Further, the master control module uses upper and lower controller architectures, and the upper controller and the lower controller are connected through a 485 bus;
[28] the upper controller is used for SG communication and video monitoring, and performing optimal computation of manipulated variables in the refrigerator van; the lower controller is configured to acquire sensing information related to refrigeration and process and generate control signals of the refrigeration system, and to control the temperature in the refrigerator van; the input end of the lower controller is connected to information output end of each information acquisition module, and the output end of the lower controller is connected to a four-way valve, an electronic expansion valve, a ventilation control valve, a high pressure switch, a lower pressure switch, a variable frequency fan drive module, a variable frequency compressor drive module, a nitrogen release switch and an exhaust switch.
[29] The present invention further provides a control method of the refrigeration control system for a novel electric refrigerator vehicle, including:
[30] S1: refrigerating equipment is driven to work through the electric supply before 3
BL-5673 the refrigerator vehicle works, wherein a cold storage tank stores cold; LU504251
[31] S2: a vehicle-mounted electric drive compressor is driven by a variable frequency compressor drive module in a transport process of the refrigerator vehicle, wherein the refrigerating equipment works to maintain a certain refrigerating capacity to supplement cold for the cold storage module;
[32] S3: temperature sensors detect a temperature field in a refrigerator van by networking a wireless network, controllers perform coordination control of rotating speed of fans in a plurality of air deflectors according to the detected temperature field condition, so as to indirectly control the heat exchange capacity, wherein the temperature field in the refrigerator van can be controlled in the optimum state; and
[33] S4: state parameters in the refrigerator van of the refrigerator vehicle are transmitted to a remote service platform in real time, and the refrigerator vehicle is positioned through a GPS module and position data 1s transmitted to cloud.
[34] Further, the cold supplementing step in S2 includes: cold air in the air delivery conduit is blown off from the phase change material ice storage tank through the fan, wherein the material absorbing heat is melted into a liquid cold storage material, and the liquid cold storage material passes through the pore plate-like bottom plate and flow into the lower ice melting water channel; and air in the return air duct of the refrigerator vehicle is transported to the air delivery conduit after being preheated in the return air heat exchange air duct for heat exchange to the air delivery conduit, wherein through the above treatment, recirculating cold air in the refrigerator van vehicle is formed.
[35] Further, the controlling the rotating speeds of the fans in the air deflectors by the controllers in S3 specifically includes:
[36] (1) When feedback values of the temperature sensors all are lower than a target temperature, the controllers control the compressors to stop working, the fans are started to form air circulation in the refrigerator van, wherein the compressors continue to work after the temperature is raised,
[37] (2) When the feedback values of the temperature sensors all are higher than the target temperature, the controllers control the fans to stop working, wherein the compressors work to wait till the temperature reaches the target temperature; and
[38] (3) When the feedback values monitored by the temperature sensors are nonuniform: a part of the feedback values are higher than the target temperature and a part of the feedback values are lower than the target temperature, the controllers control corresponding air flows to regulate the axial fans to be started properly, so as to form a stable and constant temperature field.
[39] In combination with all the above technical solutions, the present invention has the advantages and positive effects as follows:
[40] the regenerator of the cold storage type refrigerator vehicle provided by the present invention is arranged in an independent space between the driving cab and the refrigerating chamber. Cooling capacity of a cold storage heat exchanger is conveyed to the refrigerating chamber through the fan. A certain amount of air deflectors are mounted oppositely in the air ducts on two sides of the refrigerator van of the refrigerating chamber. The air outlets of the air deflectors on one side face upwards and the return air vents face downwards, and on the contrary, the air outlets of the air 4
BL-5673 deflectors on one side face downwards and the return air vents face upwards, so a cold LU504251 air flow field is formed in a vertical plane of the refrigerating chamber. Further, by mounting the plurality of temperature sensors near the air outlets and the return air vents of the air deflectors in the middle and tail of the refrigerator van, the temperature sensors detect the temperature field in the refrigerator van by networking wireless networks, and the controllers perform coordination control of the rotating speeds of the plurality of air deflectors according to the detected temperature field condition, so as to indirectly control the heat exchange capacity, where the temperature field in the refrigerator van can be controlled in the optimum state (kept uniform). The air outlets and the return air vents in the present invention are matched with each other, so cold air circulates to form a backflow which accelerates air cooling. The present invention is safe and non-toxic, effective and controllable, waterproof, energy-saving, cheap and convenient to mount.
[41] In order to describe the technical solutions of the embodiment of the application more clearly, the drawings needed to be used in the embodiment of the application will be briefly introduced below. Apparently, the drawings described below are merely some embodiments of the application. Those of ordinary skill in the art also can obtain other drawings according to these drawings without making creative efforts.
[42] FIG 1 is a structural schematic diagram of refrigeration equipment for a novel electric refrigerator vehicle provided by an embodiment of the present invention.
[43] FIG 2 is a left view of the refrigeration equipment for a novel electric refrigerator vehicle provided by the embodiment of the present invention.
[44] FIG 3 is a top view of the refrigeration equipment for a novel electric refrigerator vehicle provided by the embodiment of the present invention.
[45] FIG 4 is a structural schematic diagram of an air deflector provided by the embodiment of the present invention.
[46] FIG 5 is a schematic diagram of the air deflector with an adjustable nozzle mode provided by the embodiment of the present invention.
[47] FIG 6 is a partial structural schematic diagram of a forced-draft fan provided by the embodiment of the present invention.
[48] FIG 7 is a schematic diagram of a working state of the forced-draft fan provided by the embodiment of the present invention.
[49] In FIG 7, FIG a: all forced-draft fans are started; FIG b: part of forced-draft fans are started.
[50] FIG 8 is a structural schematic diagram of a solution of an air flow air deflector of a phase change cold storage type refrigerator vehicle equipped with electric guide plates provided by the embodiment of the present invention.
[51] FIG 9 is a structural left view of a solution of the air flow air deflector of the phase change cold storage type refrigerator vehicle equipped with electric guide plates provided by the embodiment of the present invention.
[52] FIG 10 is a structural top view of a solution of the air flow air deflector of the phase change cold storage type refrigerator vehicle equipped with electric guide plates
BL-5673 provided by the embodiment of the present invention. LU504251
[53] FIG 11 is a structural schematic diagram of a return air guide plate capable of controlling the return air direction provided by the embodiment of the present invention.
[54] In FIG 11, FIG a: side view; FIG b: front view.
[55] FIG 12 is a partially opened schematic diagram of a solution of the air flow air deflector of the phase change cold storage type refrigerator vehicle equipped with electric guide plates provided by the embodiment of the present invention.
[56] FIG 13 is a structural schematic diagram of a solution of the phase change cold storage type refrigerator vehicle equipped with cold storage strips and air deflectors provided by the embodiment of the present invention.
[57] FIG 14 is a structural left view of a solution of the phase change cold storage type refrigerator vehicle equipped with cold storage strips and air deflectors provided by the embodiment of the present invention.
[58] FIG 15 is a structural top view of a solution of the phase change cold storage type refrigerator vehicle equipped with cold storage strips and air deflectors provided by the embodiment of the present invention.
[59] FIG 16 is a structural schematic diagram of the air deflector in the solution of the phase change cold storage type refrigerator vehicle equipped with cold storage strips and air deflectors provided by the embodiment of the present invention.
[60] FIG 17 is a structural schematic diagram of a second solution of the phase change cold storage type refrigerator vehicle equipped with the air deflectors provided by the embodiment of the present invention.
[61] FIG 18 is a structural left view of a second solution of the phase change cold storage type refrigerator vehicle equipped with the air deflectors provided by the embodiment of the present invention.
[62] FIG 19 is a structural top view of a second solution of the phase change cold storage type refrigerator vehicle equipped with the air deflectors provided by the embodiment of the present invention.
[63] FIG 20 is a structural schematic diagram of the air deflector fixed at a tuyere provided by the embodiment of the present invention.
[64] In FIG 20, FIG a: side view; FIG b: front view.
[65] FIG 21 is a schematic diagram of the air deflector with an adjustable nozzle direction provided by the embodiment of the present invention.
[66] In FIG 21, FIG a: side view; FIG b: front view.
[67] FIG 22 is a schematic diagram of partially started air deflectors in the second solution of the phase change cold storage type refrigerator vehicle equipped with the air deflectors provided by the embodiment of the present invention.
[68] FIG 23 is a schematic diagram of fully started air deflectors in the second solution of the phase change cold storage type refrigerator vehicle equipped with the air deflectors provided by the embodiment of the present invention.
[69] FIG 24 is a structural schematic diagram of a regenerator provided by the embodiment of the present invention.
[70] FIG 25 is a structural schematic diagram of a connection of a power supply module provided by the embodiment of the present invention. 6
BL-5673
[71] FIG 26 is a block diagram of a master control program of an air conditioned LU504251 refrigerator van provided by the embodiment of the present invention.
[72] FIG 27 is a flow chart of a GPS module program provided by the embodiment of the present invention.
[73] FIG 28 is a design block diagram of an integrated monitoring and management cloud platform for cold chain logistics provided by the embodiment of the present invention.
[74] In the figures, 1, refrigerating chamber; 2, driving cab; 3, regenerator; 4-fan;
S-air delivery conduit; 6-return air duct; 7, axial forced-draft fan; 8, axial return fan; 9, air deflector; 10, air duct; 11, cold storage strip; 12, condenser; 13, vehicle-mounted electric drive compressor; 14, electronic expansion valve; 15, evaporator; 16, cold air duct; 17, phase change material ice melting water channel; 18, pump body; 19, water storage tank; 20, phase change material ice storage tank; 21, return air heat exchange air duct; 22, forced-draft fan; and 23, return fan.
[75] In order to make purposes, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in combination with embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.
[76] To make those skilled in the art fully understand how to implement the present invention specifically, this part is explainable embodiments which describe the technical solutions of the claims. [771 FIG 1-7 show the solution of the phase change cold storage type refrigerator vehicle equipped with air deflectors (flow guides) provided by the embodiment of the present invention. With respective to a small refrigerator vehicle, the air outlets and the return air vents of the air deflectors are fixed.
[78] The regenerator 3 is mounted in an independent space between the driving cab 2 and the refrigerating chamber 1; the air duct is mounted in the refrigerating chamber 1, the air duct is provided with the air delivery conduit 5 and the return air duct 6, and fans 4 are mounted at the right ends of the air delivery conduit 5 and the return air duct 6, respectively; and the air deflectors 9 are mounted on the air delivery conduit 5 and the return air duct 6, respectively, and each air deflector is provided with the axial forced-draft fan 7 and the axial return fan 8.
[79] The regenerator of the cold storage type refrigerator vehicle provided by the present invention is arranged in an independent space between the driving cab and the refrigerating chamber. Cooling capacity of a cold storage heat exchanger is conveyed to the refrigerating chamber through the fan. A certain amount of air deflectors are mounted oppositely in the air ducts on two sides of the refrigerator van of the refrigerating chamber. The air outlets of the air deflectors on one side face upwards and the return air vents face downwards, and on the contrary, the air outlets of the air deflectors on one side face downwards and the return air vents face upwards, so a cold air flow field is formed in a y-z plane of the refrigerating chamber. Further, by mounting 7
BL-5673 4 temperature sensors near the air outlets and the return air vents of the air deflectors in LU504251 the middle and tail of the refrigerator van, the temperature sensors detect the temperature field in the refrigerator van by networking wireless networks, and the controllers perform coordination control of the rotating speeds of the plurality of air deflectors according to the detected temperature field condition, so as to indirectly control the heat exchange capacity, where the temperature field in the refrigerator van can be controlled in the optimum state (kept uniform).
[80] FIG 8-12 show the design solution of the air flow air deflectors (flow guides) of the phase change cold storage type refrigerator vehicle (capable of adjusting the circulation direction) equipped with electric guide plates provided by the embodiment of the present invention.
[81] The regenerator 3 is mounted in the independent space between the driving cab 2 and the refrigerating chamber 1; the air duct 10 is mounted in the refrigerating chamber 1, the air duct 10 is provided with the air delivery conduit 5 and the return air duct 6, the fans 4 are mounted at the right ends of the air delivery conduit 5 and the return air duct 6, respectively, and the fans 4 are forced-draft fans; and the air deflectors 9 are mounted on the air delivery conduit 5 and the return air duct 6, respectively, each air deflector is provided with the axial forced-draft fan 7 and the axial return fan 8, an air outlet guide plate capable of controlling the air outlet direction is mounted on the outer side of the axial forced-draft fan 7, and a return air guide plate capable of controlling the return air direction is mounted on the outer side of the axial return fan 8.
The air outlet guide plate capable of controlling the air outlet direction and the return air guide plate capable of controlling the return air direction are connected to stepping motors, respectively.
[82] The air deflectors control the directions of the guide plates through the stepping motors, and their air outlet direction and return air direction can be controlled independently or can be under coordinated control (controlled by the air deflectors in different positions independently). Further, by mounting 4 temperature sensors near the air outlets and the return air vents of the air deflectors in the middle and tail of the refrigerator van, the temperature sensors detect the temperature field in the refrigerator van by networking wireless networks, and the controllers perform coordination control of the directions of the guide plates of the plurality of air deflectors according to the detected temperature field condition, so the temperature field in the refrigerator van can be controlled in the optimum state (kept uniform), and the temperature field of the refrigerating chamber is distributed more uniformly.
[83] FIG 13-16 show the solution of the phase change cold storage type refrigerator vehicle equipped with cold storage strips and air deflectors (flow guides) provided by the embodiment of the present invention.
[84] The cold storage strips 11 (cold storage plates) are mounted on the side wall or at the top of the refrigerating chamber, the air deflectors are mounted on the cold storage strips 11 (cold storage plates), and the fans are arranged in the air deflectors.
[85] The refrigerating system supplements cooling capacity to the refrigerating device in advance, and the plurality of cold storage strips mounted on the side wall and at the top of the refrigerating chamber output cooling capacity. Under a condition of no 8
BL-5673 air deflectors, temperature distribution is related to factors such as distances among the LU504251 cold storage strips, which results in great temperature difference on the lower part (parts such as the back door and the corner) of the refrigerating chamber. In order to solve the above problems, a certain amount of air deflectors are mounted on the cold storage strips at the top and on the side wall. The fans are arranged in the air deflectors, so the cooling capacity is distributed more uniformly.
[86] FIG 17-23 show the second solution of the phase change cold storage type refrigerator vehicle equipped with air deflectors (flow guides) provided by the embodiment of the present invention.
[87] The air delivery conduit is mounted on the upper side of the refrigerating chamber, and the return air duct is mounted on the lower side of the refrigerating chamber; and the forced-draft fan is arranged in the air delivery conduit, and the return fan is mounted in the return air duct.
[88] The regenerating device of the cold storage type refrigerator vehicle is arranged in an independent space between the driving cab and the refrigerating chamber. Cooling capacity of a cold storage heat exchanger is conveyed to the refrigerating chamber through the fans. The air ducts are arranged at the top and on both sides of the refrigerator van of the refrigerating chamber, and a certain amount of air deflectors are mounted oppositely. Cold air is delivered slowly by the air outlets of the air deflectors at the top from both sides to the middle, and the return air vent faces downwards to inhale hot air reflected by a floor to the return air, so two symmetric cold air flow fields are formed in a y-z plane of the refrigerating chamber. Further, by mounting 4 temperature sensors near the air outlets and the return air vents of the air deflectors in the middle and tail of the refrigerator van, the temperature sensors detect the temperature field in the refrigerator van by networking wireless networks, and the controllers perform coordination control of the rotating speeds of the plurality of air deflectors according to the detected temperature field condition, so as to indirectly control the heat exchange capacity, where the temperature field in the refrigerator van can be controlled in the optimum state (kept uniform).
[89] As shown in FIG 24, the regenerator 3 provided by the embodiment of the present invention is provided with the phase change material ice melting water channel 17, the water storage tank 19 with a perpendicularly and movably adjusted bottom plate, and the phase change material ice storage tank 20 with a movable upper plate and a fixed bottom plate. The water storage tank 19 is connected to the pump body 18 through a conduit, the pump body 18 is connected to the phase change material ice melting water channel 17 through a conduit, and the phase change material ice melting water channel 17 is provided with the return air heat exchange air duct 21; the return fan 23 is mounted in the return air heat exchange air duct 21, the return air heat exchange air duct 21 is connected to the cold air duct 16 through an air tube, the forced draft fan 22 is mounted in the cold air duct 16, and the cold air duct 16 is arranged corresponding to the phase change material ice storage tank 20; the phase change material ice storage tank 20 is connected to the evaporator 15, the evaporator 15 is connected to the electronic expansion valve 14 through an air tube, the electronic expansion valve 14 is connected to the condenser 12, the condenser 12 is connected to the vehicle-mounted 9
BL-5673 electric drive compressor 13, and the vehicle-mounted electric drive compressor 13 is LU504251 connected to the evaporator 15.
[90] A cold storage system in the embodiment of the present invention includes: (1) a vehicle-mounted electric drive refrigerating system capable of supplementing cooling capacity to the refrigerating device; and (2) a cold storage unit. The vehicle-mounted refrigerating system is in a traditional layout mode of an existing refrigerator vehicle.
The vehicle-mounted refrigerating system is in parallel connection to the cold storage system. The vehicle-mounted refrigerating system can uses a combined power supply mode of a storage battery, a photovoltaic cell, roof axial wind power generation and electric supply. The evaporator of the vehicle-mounted refrigerating device 1s embedded into the ice storage tank and is capable of supplementing cooling capacity to a phase change material. Before the refrigerator vehicle works, cooling capacity is supplemented to the phase change material through electric supply. In the transport process of the refrigerator vehicle, the vehicle-mounted refrigerating device can supplement cooling capacity to the phase change material as required, so as to keep the cooling capacity of the phase change material in the ice storage tank. The condenser of the vehicle-mounted refrigerating device is mounted out of the refrigerator vehicle body.
With respective to the cold storage unit of the refrigerator vehicle, cold air in the air delivery conduit is blown off from the ice storage tank by the fans. The cold storage material absorbing heat and melted to liquid flows into the ice melting water channel in the lower part through the pore plate-like bottom plate. Air in the return air duct of the refrigerator vehicle is transported to the air delivery conduit after being preheated in the return air heat exchange air duct for heat exchange to the air delivery conduit. Through the above treatment, recirculating cold air in the refrigerator van is formed. That is, low-temperature air delivered is turned into high-temperature return air after heat exchange in the refrigerator van, and the return air is then subjected to heat exchange to form low-temperature air delivered. The cold storage device can be made of a corrosion-resistant, anti-aging and adiabatic engineering plastic product, so a closed unit is formed.
[91] The embodiment of the present invention provides a solution of detection and optimal control of the temperature field of the refrigerator van of the phase change cold storage type refrigerator vehicle. In order to solve the problem of single point measurement in the refrigerator van and overcome the defect of incapacity of performing remote measurement, the refrigerator van distributed constant temperature control system of the refrigerator vehicle provided by the present invention is a control system integrating multi-point measurement with remote control. The system supports linking of a plurality of devices for simultaneous working by taking a CAN bus as a transmission medium and an iCAN protocol as an upper layer protocol to achieve multi-node control and remote analog/digital quantity detection and to achieve remote detection of the refrigerating system of the refrigerator vehicle through a GPRS module.
[92] The regenerator of the cold storage type refrigerator vehicle provided by the present invention is arranged in an independent space between the driving cab and the refrigerating chamber. Cold capacity of a cold storage heat exchanger is conveyed to the refrigerating chamber through the fan. A certain amount of air deflectors are mounted
BL-5673 oppositely in the air ducts on two sides of the refrigerator van of the refrigerating LU504251 chamber. The air outlets of the air deflectors on one side face upwards and the return air vents face downwards, and on the contrary, the air outlets of the air deflectors on one side face downwards and the return air vents face upwards, so a cold air flow field is formed in a y-z plane of the refrigerating chamber. Further, by mounting 4 temperature sensors near the air outlets and the return air vents of the air deflectors in the middle and tail of the refrigerator van, the temperature sensors detect the temperature field in the refrigerator van by networking wireless networks, and the controllers perform coordination control of the rotating speeds of the plurality of air deflectors according to the detected temperature field condition, so as to indirectly control the heat exchange capacity, where the temperature field in the refrigerator van can be controlled in the optimum state (kept uniform).
[93] The present invention will be further described below in combination with specific embodiments.
[94] 1. Software and hardware systems of temperature and humidity smart control terminals of the refrigerator vehicle:
[95] a monitoring system of the refrigerator vehicle in the embodiment of the present invention plans to apply upper and lower controller architectures, and the upper controller and the lower controller are connected through a 485 bus. The upper controller is mainly responsible for 5G communication and video monitoring, and performing optimal computation of manipulated variables in the refrigerator van; and the lower controller is responsible for controlling temperature and humidity in the refrigerator van. Hardware in the control system mainly include the following modules: a Bluetooth module, a master controller, a variable frequency compressor drive module, a variable frequency fan drive module, a master control power supply module, a drive power supply module and the like. The lower controller is configured to acquire sensing information related to refrigeration and process and generate control signals of the refrigeration system. The input end of the lower controller is connected to information output end of each information acquisition module, and the output end of the lower controller is connected to a four-way valve, an electronic expansion valve, a ventilation control valve, a high pressure switch, a lower pressure switch, a variable frequency fan drive module, a variable frequency compressor drive module, a nitrogen release switch and an exhaust switch.
[96] In order to make temperature and humidity in the refrigerator vehicle be stable within a certain range, a solution mainly refers to performing experiments by arranging temperature differences in different temperature areas in the refrigerator vehicle so as to explore the distribution condition of the temperature filed in the vehicle in the transport process and analyze the temperature change and interaction effect. A specific method is as follows: first, the temperature field distribution in the refrigerator van is obtained through software simulation, and further reasonable layout of the structure of the refrigerator fan and homogenization of temperature distribution have certain value of guidance. Second, four sensor test points (side tops in opposite directions of the forced-draft fans and side bottoms in same direction of the forced-draft fans in the refrigerator van) are assembled at fixed points in the refrigerator fan for monitoring 11
BL-5673 temperature and humidity, and a control policy is decided according to feedback values LU504251 of the sensors, for example:
[97] (1) When feedback values of the sensors all are lower than a target temperature and are without a certain range, working of the compressors shall be stopped, the fans are started to form air circulation in the refrigerator van, where the compressors continue to work after the temperature increases to a threshold temperature point.
[98] (2) When the feedback values of the sensors all are higher than the target temperature to a certain extent, the controllers control the fans to keep a certain rotating speed according to fuzzy PID, and the compressors work to wait till the temperature is recovered to the target temperature.
[99] (3) When the feedback values monitored by the sensors are nonuniform: a part of the feedback values are higher than the target temperature and a part of the feedback values are lower than the target temperature, the air supply velocities of the air flow adjusting axial fans are adjusted properly to form a stable and constant temperature field.
[100] 2. A power supply module of the control system of the air conditioning refrigerator van:
[101] a circuit of the refrigerator vehicle provided by the present invention needs to satisfy power supply of a motor of the water pump, power supply of fan motors, power supply of STM32 minimum systems of the controllers and power supply of the GPS module. À drive circuit of the circuit is designed as follows: a DC12V power supply 1s connected to a power adapter through a 5.5x2.1MMDC power plug by using the power adapter, which guarantees stable output of 12V voltage under the condition of external power supply of 220V50HZ, so as to provide power guarantee for the whole refrigerator van. In addition, in a case where the external power supply is short or unstable, a standby battery can be manually switched to supply power. The standby battery consists of two 18650 batteries. The voltage of the battery pack fully charged 1s about 8V, and the voltage of 8V 1s boosted to 12V through an NCP3063 chip. One of the 12V voltage provided by the power adapter and the 12V voltage boosted by the NCP3063 1s supplied to AS4950 motor drive and an LM1117-5 chip. An AS4950 chip subjected to PWM modulation of a singlechip microcomputer outputs the voltage which satisfies the control demand to the motor of the water pump and the forced-draft fans, so the water pump and the forced-draft fan work normally. The LM1117-5 chip provides a SV voltage to the system. This voltage is transmitted to the AS4950 chip, a front panel module of the refrigerator van and the GPS module, as shown in FIG. 25.
[102] A front-end control panel is designed for the control system of the refrigerator van for human-computer interaction. The front-end control panel consists of an
STM32F1 chip, a TFT liquid crystal display screen and a plurality of buttons. À user can monitor the temperature in the refrigerator van, the rotating speed of the circulating water pump in the cold storage tank of the refrigerator van and the rotating speeds of the forced-draft fans in the refrigerator van through the panel, and further can adjust set value of the temperature of the refrigerator van through a temperature set button or remote control equipment of the panel. The user also can set the environment temperature of the refrigerator van through a button or set the environment temperature 12
BL-5673 of the refrigerator van fast remotely. The STM32F1 chip in the control panel will detect LU504251 the current temperature value in the refrigerator van through GX18B20 temperature sensors arranged in the refrigerator van and transmit temperature data in the refrigerator van and the rotating speed information of the water pump and the fans to an HaaS gateway. The HaaS gateway performs edge optimization calculation on the set value of the environment temperature in the refrigerator van through the adaptive genetic algorithm, and transmits the optimized set value of the environment temperature in the refrigerator van to the STM32F1 chip. The STM32F1 chip compares the optimized set value of the environment temperature in the refrigerator van with the current detected value of the temperature of the refrigerator van. The optimum output values of the circulating water pump and the forced-draft fans are then calculated through the incremental PID algorithm according to compared result. Then the STM32F1 chip controls the real-time rotating speeds of the motor of the water pump and the forced-draft fans by outputting PWM signals, so work of saving energy by adjusting the temperature in the refrigerator van is implemented.
[103] The adaptive genetic algorithm is used for calculating solutions of manipulated variables in the cold storage refrigerating system when the energy consumption of the cold storage refrigerating system of the refrigerator vehicle is the minimum at a certain time. Pc (and Pm) in the adaptive genetic algorithm both are in form of piecewise nonlinear functions: sigmoid function and -sigmoid function. For example, an adaptive adjustment formula of Pc is shown in equations 1 and 2.
[104] sigmoid function: — tafe Poy, fo = fae (1) 1+ exp nn _ ons Lex 2
[105] -sigmoid function: — + Pos Je 7 fag (2)
I +exp 4 (& = fu) oe fen)
[106] In the equations (1) and (2), Pez and Pcs are predetermined value ranges of Pe, fmax 1s the maximum value of fitness in a population, favg is the average fitness value of each generation of the population, fc is the value with greater fitness in two individuals subjected to interlace operation, fmin 1s the minimal value of the fitness value of the individual to be variant, and kı is the adjustment coefficient.
[107] 3. The design block diagram of the master control program of the air conditioned refrigerator van is shown in FIG 26.
[108] 4. A program design of the GPS module of the refrigerator van:
[109] The program flow chart of the GPS module of the air conditioned refrigerator van is shown in FIG 27. A master program first executes an initialization operation, and then waits for GPS to search stars in sequence. SIM registers a network. When the SIM registers the network successfully, an ATGM336H module is communicated with Haas by using a communication format of NMEA. Output statements of ATGM336H include 13
BL-5673 $GPGSA, SGPGGA, $GPRMC, $GPGSV and the like, where $GPGGA is the most 504251 commonly used statement. A TGM336H module transmits the position information to
Haas by way of serial communication, transfers longitude and latitude information obtained to a register in a chip, and finally transmits the longitude and latitude information to the cloud through Haas, so as to achieve the effect of monitoring the position of the refrigerator van in real time.
[110] 5. A design of an integrated monitoring and management cloud platform for cold chain logistics:
[111] as shown in FIG 28, the integrated monitoring and management cloud platform transmits state parameters in the refrigerator van to a remote service platform in real time by using the 5G Internet of Vehicles technology, positions the refrigerator vehicle through the GPS module and transmits position data to the cloud.
[112] The management platform can determine whether the modules work normally through the state parameters in the refrigerator van and perform matched scheduling and route planning for the refrigerator van through the ant colony algorithm and the adaptive genetic algorithm. The two algorithms are used jointly to better lower the transport cost.
Meanwhile, the platform performs supply and demand prediction between refrigerator van tenants and logistics refrigerator van park merchants by using the reinforcement learning algorithm and performs behavior prediction on potential clients of the refrigerator van, so as to make a scheduling decision in advance, thereby achieving efficient and safe logistics management and control service.
[113] The platform is developed by using AliCloud Python SDK to acquire equipment certificate Information such as ProductKey, DeviceName and DeviceSecret by creating products and equipment at the cloud. Equipment information is imported into equipment terminal SDK to define an “object model” for the sensor, so that equipment terminal can be connected to an Internet of things platform. A PC client selects the type of subscribe messages to receive equipment related information such as online and offline states of the equipment and process data. The platform can determine whether the modules work normally through the state parameters in the refrigerator van.
[114] The monitoring platform uses a PC as the client to provide a real-time and reliable message service to connect remote equipment through the MQTT protocol.
Data acquired by the sensors can be uniformly transmitted to the PC terminal through a rule engine of the Internet of Things platform by means of a front-end interface of
Alicloud IoT Studio, so as to achieve real-time visual display of data. Real-time instruction issuing is achieved by IoT Studio, so that functions such as real-time route planning of the refrigerator vehicle and scheduling of a plurality of refrigerator vehicles are implemented. Image observation of remote video communication can further be implemented at the PC terminal by combining an output plugin of a browser with the visual recognition algorithm.
[115] The refrigerator vehicle user can issue instructions to the equipment by calling a cloud API of the Internet of Things platform, and achieve data message forwarding of the equipment by means of a data transfer function of the Internet of Things platform, so the data is stored and processed conveniently in other Alicloud products. The user further performs matched scheduling and supply and demand prediction of the 14
BL-5673 refrigerator vehicle through the hyper-heuristic algorithm and the reinforcement LU504251 learning algorithm and the like so as to make the optimum scheduling and navigation decision, thereby achieving efficient and safe logistics management and control service.
[116] The above is merely the specific embodiments of the present invention but the scope of protection of the present invention is not limited thereto. Any modifications, equivalents and improvements and etc. made by those skilled in the art within the technical scope disclosed by the present invention based on the spirit and principle of the present invention shall be within the scope of protection of the present invention.
Claims (10)
1. Refrigeration equipment for a novel electric refrigerator vehicle, comprising: a regenerator, mounted between a driving cab and a refrigerating chamber, wherein an air duct is mounted in the refrigerating chamber; a forced-draft fan is mounted in the air duct, and an air deflector is mounted on the air channel; the air duct 1s equipped with an air delivery conduit and a return air duct, and fans are mounted at the right ends of the air delivery conduit and the return air duct, respectively; and the air delivery conduit is mounted on the upper side of the refrigerating chamber, and the return air duct is mounted on the lower side of the refrigerating chamber.
2. The refrigeration equipment for a novel electric refrigerator vehicle according to claim 1, wherein the air deflector is equipped with an axial forced-draft fan and an axial return fan; and an air outlet guide plate is mounted on the outer side of the axial forced-draft fan, and a return air guide plate is mounted on the outer side of the axial return fan.
3. The refrigeration equipment for a novel electric refrigerator vehicle according to claim 1, wherein the air duct is filled with a cold storage strip, the cold storage strip is mounted on the side wall or at the top of the refrigerating chamber, and the air deflector is mounted on the cold storage strip; and the fan is arranged in the air deflector, guide plates are mounted at an air outlet and a return air vent, temperature sensors are further mounted at the air outlet and the return air vent, respectively, and the temperature sensors are connected to controllers.
4. The refrigeration equipment for a novel electric refrigerator vehicle according to claim 1, wherein the regenerator comprises a phase change material ice melting water channel, a water storage tank with a perpendicularly and movably adjusted bottom plate, and a phase change material ice storage tank with a movable upper plate and a fixed bottom plate; the water storage tank is connected to a pump body through a conduit, the pump body is connected to the phase change material ice melting water channel through a conduit, and the phase change material ice melting water channel is provided with a return air heat exchange air duct; a return fan is mounted in the return air heat exchange air duct, the return air heat exchange air duct is connected to a cold air duct through an air tube, a forced-draft fan is mounted in the cold air duct, and the cold air duct is arranged corresponding to the phase change material ice storage tank; the phase change material ice storage tank is connected to an evaporator, and the evaporator is connected to an electronic expansion valve through an air tube; and the electronic expansion valve is connected to a condenser, the condenser is connected to a vehicle-mounted electric driven compressor, and the vehicle-mounted electric driven compressor is connected to the evaporator.
5. A refrigeration control system for a novel electric refrigerator vehicle, comprising: the refrigerating equipment according to any one of claims 1-4; a cold storage module that stores cold by utilizing the refrigerating equipment; 16
BL-5673 a signal transmission module that supports linking of a plurality of devices for LU504251 simultaneous working by taking a CAN bus as a transmission medium and an iCAN protocol as an upper layer protocol to achieve multi-node control and remote analog/digital quantity detection and to achieve remote detection of the refrigerating equipment of the refrigerator vehicle through a GPRS module; a temperature acquisition module that detects the temperature field in a refrigerator van by utilizing a plurality of temperature sensors mounted in different positions; a remote management module that transmits state parameters in the refrigerator van to a remote service platform in real time by utilizing the SG Internet of vehicles technology; a GPS module, configured to position the refrigerator vehicle and to transmit position data to the cloud; a variable frequency fan drive module, configured to perform drive control on operation of a fan according to a control command; a variable frequency compressor drive module, configured to perform drive control on operation of a vehicle-mounted electric driven compressor according to a control command: a power supply module, configured to provide a power supply for the overall equipment; and a master control module, configured to perform coordination control on work of each controlled device by utilizing controllers.
6. The refrigeration control system for a novel electric refrigerator vehicle according to claim 5, wherein the power supply module supplies power in a combined power supply mode with a storage battery, a photovoltaic cell, roof axial-flow type wind power generation and an electric supply.
7. The refrigeration control system for a novel electric refrigerator vehicle according to claim 6, wherein the master control module uses upper and lower controller architectures, and the upper controller and the lower controller are connected through a 485 bus; the upper controller is used for SG communication and video monitoring, and performing optimal computation of manipulated variables in the refrigerator van; the lower controller is configured to acquire sensing information related to refrigeration and process and generate control signals of the refrigeration system, and to control the temperature in the refrigerator van; the input end of the lower controller is connected to information output end of each information acquisition module, and the output end of the lower controller is connected to a four-way valve, an electronic expansion valve, a ventilation control valve, a high pressure switch, a lower pressure switch, a variable frequency fan drive module, a variable frequency compressor drive module, a nitrogen release switch and an exhaust switch.
8. A control method of the refrigeration control system for a novel electric refrigerator vehicle according to claims 5-7, wherein S1: refrigerating equipment is driven to work through the electric supply before the refrigerator vehicle works, wherein a cold storage tank stores cold, S2: a vehicle-mounted electric drive compressor is driven by a variable frequency 17
BL-5673 compressor drive module in a transport process of the refrigerator vehicle, wherein the LU504251 refrigerating equipment works to maintain a certain refrigerating capacity to supplement cold for the cold storage module; S3: temperature sensors detect a temperature field in a refrigerator van by networking a wireless network, controllers perform coordination control of rotating speed of fans in a plurality of air deflectors according to the detected temperature field condition, so as to indirectly control the heat exchange capacity, wherein the temperature field in the refrigerator van can be controlled in the optimum state; and S4: state parameters in the refrigerator van of the refrigerator vehicle are transmitted to a remote service platform in real time, and the refrigerator vehicle 1s positioned through a GPS module and position data 1s transmitted to cloud.
9. The refrigeration control method for a novel electric refrigerator vehicle according to claim 8, wherein the cold supplementing step in S2 comprises: cold air in the air delivery conduit is blown off from the phase change material ice storage tank through the fan, wherein the material absorbing heat is melted into a liquid cold storage material, and the liquid cold storage material passes through the pore plate-like bottom plate and flow into the lower ice melting water channel; and air in the return air duct of the refrigerator vehicle is transported to the air delivery conduit after being preheated in the return air heat exchange air duct for heat exchange to the air delivery conduit, wherein through the above treatment, recirculating cold air in the refrigerator van is formed.
10. The refrigeration control method for a novel electric refrigerator vehicle according to claim 8 or 9, wherein the controlling the rotating speeds of the fans in the air deflectors by the controllers in S3 specifically comprises: (1) When feedback values of the temperature sensors all are lower than a target temperature, the controllers control the compressors to stop working, the fans are started to form air circulation in the refrigerator van, wherein the compressors continue to work after the temperature is raised, (2) When the feedback values of the temperature sensors all are higher than the target temperature, the controllers control the fans to stop working, wherein the compressors work to wait till the temperature reaches the target temperature; and (3) When the feedback values monitored by the temperature sensors are nonuniform: a part of the feedback values are higher than the target temperature and a part of the feedback values are lower than the target temperature, the controllers control corresponding air flows to regulate the axial fans to be started properly, so as to form a stable and constant temperature field. 18
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210331184.4A CN114604059A (en) | 2022-03-30 | 2022-03-30 | Novel electric refrigerator car refrigerating device, control system and control method |
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| LU504251B1 true LU504251B1 (en) | 2023-10-06 |
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| LU504251A LU504251B1 (en) | 2022-03-30 | 2022-10-24 | Refrigeration equipment for novel electric refrigerator vehicle, and control system and control method |
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| CN (1) | CN114604059A (en) |
| LU (1) | LU504251B1 (en) |
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| CN114604059A (en) * | 2022-03-30 | 2022-06-10 | 广东技术师范大学 | Novel electric refrigerator car refrigerating device, control system and control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2658659Y (en) * | 2003-09-17 | 2004-11-24 | 浙江杭佳制冷设备安装有限公司 | Cold-storage refrigerating equipment |
| JP2008256336A (en) * | 2007-03-30 | 2008-10-23 | Tajiri Machine Manufacturing Co Ltd | Cold device using ice to be mounted on cold retaining/refrigerating transport vehicle |
| CN101934755A (en) * | 2009-07-03 | 2011-01-05 | 王天祥 | Energy-saving environment-friendly freezing and refrigeration lorry with functions of electric-drive refrigeration and cold accumulation |
| CN202656828U (en) * | 2012-07-16 | 2013-01-09 | 上海博阳制冷设备有限公司 | Direct-current driven freezing refrigerated truck |
| CN208475761U (en) * | 2018-07-04 | 2019-02-05 | 深圳市德塔防爆电动汽车有限公司 | New energy refrigerator car and its refrigeration system |
| CN212353530U (en) * | 2020-06-02 | 2021-01-15 | 松下冷机系统（大连）有限公司 | Vehicle-mounted cold storage box |
| CN114013237A (en) * | 2021-10-27 | 2022-02-08 | 合肥通用机械研究院有限公司 | Vehicle-mounted 5G refrigeration and cold supplement system |
| CN114604059A (en) * | 2022-03-30 | 2022-06-10 | 广东技术师范大学 | Novel electric refrigerator car refrigerating device, control system and control method |
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- 2022-03-30 CN CN202210331184.4A patent/CN114604059A/en active Pending
- 2022-10-24 LU LU504251A patent/LU504251B1/en active IP Right Grant
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| WO2023184944A1 (en) | 2023-10-05 |
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|---|---|---|---|
| FG | Patent granted |
Effective date: 20231006 |