WO2022247476A1 - Réfrigérateur à garniture de glace et procédé de commande de réfrigérateur - Google Patents

Réfrigérateur à garniture de glace et procédé de commande de réfrigérateur Download PDF

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Publication number
WO2022247476A1
WO2022247476A1 PCT/CN2022/085398 CN2022085398W WO2022247476A1 WO 2022247476 A1 WO2022247476 A1 WO 2022247476A1 CN 2022085398 W CN2022085398 W CN 2022085398W WO 2022247476 A1 WO2022247476 A1 WO 2022247476A1
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WO
WIPO (PCT)
Prior art keywords
cold storage
temperature
ice
storage body
lined
Prior art date
Application number
PCT/CN2022/085398
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English (en)
Chinese (zh)
Inventor
常志强
Original Assignee
合肥美的生物医疗有限公司
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Publication of WO2022247476A1 publication Critical patent/WO2022247476A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/006—Self-contained movable devices, e.g. domestic refrigerators with cold storage accumulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • F25D23/065—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/003—Arrangement or mounting of control or safety devices for movable devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2600/00—Control issues
    • F25D2600/06—Controlling according to a predetermined profile
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/12—Sensors measuring the inside temperature

Definitions

  • the present application relates to the technical field of refrigerators, in particular to an ice-lined refrigerator and a method for controlling the refrigerator.
  • Ice-lined refrigerator is a kind of refrigerator with cold storage material, which is characterized in that it operates normally when the power is turned on, and relies on the cooling capacity of the cold storage agent to continuously provide cooling capacity to the compartment after power failure, thus prolonging the heat preservation time.
  • the refrigerator with foam layer insulation has better insulation effect. Suitable for regions and countries with unreliable electricity or periodic scheduled power supply.
  • the ice-lined refrigerators in the prior art often use the ice row of the cold storage agent with a phase transition point of 0°C or lower, or the cold storage agent with a phase transition point of 2°C or higher.
  • the above two cold storage methods are either The temperature of the compartment is very low, or the cold storage capacity is very low, which reduces the user experience.
  • the main purpose of this application is to propose an ice-lined refrigerator and a refrigerator control method, aiming at optimizing the structure of the refrigerator to improve user experience.
  • an ice-lined refrigerator including:
  • At least two regenerators including an inner regenerator and an outer regenerator distributed inside and outside, the phase change temperature of the phase change material filled in the inner regenerator is higher than that of the phase change material filled in the outer regenerator; as well as,
  • the cooling part is used to provide cold energy to the at least two cold storage bodies.
  • the refrigerating part is arranged between the box body and the external cold storage body.
  • a first uniform cooling layer is provided between the cooling part and the external cold storage body.
  • the refrigeration unit is disposed between the outer cold storage body and the inner cold storage body.
  • a second uniform cooling layer is provided between the cooling part and the inner cold storage body; and/or,
  • a third uniform cooling layer is provided between the refrigeration unit and the external cold storage body.
  • a fourth uniform cooling layer is provided between the outer cooling storage body and the inner cooling storage body.
  • the refrigerating part and the at least two cold storage bodies are correspondingly arranged on the bottom and/or side of the inner container.
  • the ice-lined refrigerator further includes a temperature sensor disposed between the inner cold storage body and the inner container to monitor the temperature of the inner cold storage body.
  • the refrigerating unit includes an evaporator, and the evaporator includes a refrigerant core pipe, and a refrigerant outlet for leading out the refrigerant medium is formed on the refrigerant core pipe;
  • the temperature sensor is arranged corresponding to the refrigerant outlet.
  • the evaporator and the at least two cold storage bodies are correspondingly arranged on the side of the inner container, and the lower end of the evaporator extends to the lower end of the inner cool storage body;
  • the refrigerant outlet is provided at the lower end of the refrigeration unit
  • the temperature sensor is arranged corresponding to the lower end of the inner cold storage body.
  • the outer wall of the liner is partially recessed inward to form a mounting groove
  • the temperature sensor is arranged in the installation groove.
  • the preset required temperature range of the liner of the ice-lined refrigerator is from t0 to t1;
  • phase change temperature of the phase change material filled in the inner cold storage body is T0, and t0 ⁇ T0 ⁇ t1.
  • the present application also proposes a refrigerator control method, the refrigerator control method is based on an ice-lined refrigerator, and the ice-lined refrigerator includes:
  • At least two regenerators including an inner regenerator and an outer regenerator distributed inside and outside, the phase change temperature of the phase change material filled in the inner regenerator is higher than that of the phase change material filled in the outer regenerator; as well as,
  • the cooling part is used to provide cold energy to the at least two cold storage bodies.
  • the refrigerator control method includes the following steps:
  • the refrigeration unit In response to the fact that the second actual temperature parameter is lower than a preset shutdown temperature, the refrigeration unit is controlled to stop working.
  • the preset required temperature of the liner of the ice-lined refrigerator is t
  • the start-up adjustment temperature of the ice-lined refrigerator is t2
  • the shutdown adjustment temperature of the ice-lined refrigerator is t3
  • the preset The startup temperature is T1
  • the preset shutdown temperature is T2
  • the at least two regenerators are arranged between the inner tank and the box, and the phase change temperature of the phase change material filled in the inner regenerator is higher than that in the outer regenerator.
  • the phase change temperature of the filled phase change material, the refrigeration part is arranged between the inner bag and the box body, and is used to provide cold energy to the at least two regenerators, and the cold energy generated by the refrigeration part Transferred to the at least two regenerators for storage by the refrigerating part, on the one hand, the phase change temperature of the phase change material filled in the inner regenerator is relatively high, which reduces the risk of a large drop in the temperature of the inner tank, and on the other hand On the one hand, the phase change temperature of the phase change material filled in the external cold storage body is relatively low, which can store more cooling capacity, reduce the loss of cooling capacity of the refrigeration unit, reduce energy consumption, and improve user experience.
  • Fig. 1 is a schematic cross-sectional structural view of an embodiment of an ice-lined refrigerator provided by the present application
  • Fig. 2 is a schematic flowchart of an embodiment of a method for controlling a refrigerator provided by the present application.
  • the directional indications are only used to explain the position in a certain posture (as shown in the attached figure). If the specific posture changes, the directional indication will also change accordingly.
  • Ice-lined refrigerator is a kind of refrigerator with cold storage material, which is characterized in that it operates normally when the power is turned on, and relies on the cooling capacity of the cold storage agent to continuously provide cooling capacity to the compartment after power failure, thus prolonging the heat preservation time.
  • the refrigerator with foam layer insulation has better insulation effect.
  • the ice-lined refrigerators in the prior art often use the ice row of the cold storage agent with a phase transition point of 0°C or lower, or the ice row of the cold storage agent with a phase change point of 2°C or higher
  • the above two cold storage methods either make the temperature of the compartment very low, or the cold storage capacity is very low, which reduces the user experience.
  • Fig. 1 is a schematic cross-sectional structure diagram of an embodiment of the ice-lined refrigerator provided by the present application
  • Fig. 2 is a flow chart of an embodiment of the refrigerator control method provided by the present application schematic diagram.
  • the ice-lined refrigerator 100 includes a box body 1, an inner container 2, an insulating layer 7, at least two cold storage bodies and a refrigeration unit 41, the inner container 2 is arranged in the box body 1, and the At least two regenerators include an inner regenerator 52 and an outer regenerator 51 distributed inside and outside, and the phase change temperature of the phase change material filled in the inner regenerator 52 is higher than that of the phase change material filled in the outer regenerator 51 phase change temperature, the refrigeration part 41 is used to provide cold energy to the at least two regenerators.
  • the at least two regenerators are arranged between the inner tank 2 and the box body 1, and the phase change temperature of the phase change material filled in the inner regenerator 52 is higher than the specified temperature.
  • the refrigeration unit 41 is arranged between the inner tank 2 and the box body 1, and is used to provide cooling capacity to the at least two cold storage bodies The cold produced by the refrigeration unit 41 is transferred to the at least two cold storage bodies through the refrigeration unit 41 for storage.
  • the phase change temperature of the phase change material filled in the inner cold storage body 52 is relatively high, reducing The temperature of the inner tank 2 is greatly reduced.
  • the phase change temperature of the phase change material filled in the outer cold storage body 51 is relatively low, which can store more cold energy and reduce the cooling of the refrigeration unit 41. The amount of loss is reduced, energy consumption is reduced, and user experience is improved.
  • phase change materials can have multiple phases such as solid, liquid, gas, etc.
  • the phase change materials are often converted between solid and liquid, for example, the phase change materials are converted from solid to Liquid state is the process of releasing cold energy, and the phase change material is converted from liquid to solid state, which is the process of storing cold energy.
  • phase change material of the inner cold storage body 52 and the outer cold storage body 51 switches phases between liquid state and solid state, specifically, in the process that the cooling part provides cold energy to the at least two cold storage bodies , the phase change material of the inner cold storage body 52 and the outer cold storage body 51 is a cold storage process that changes from a liquid state to a solid state.
  • phase change temperature of the inner cold storage body 52 can be set to be above 2°C ( Including 2°C), according to the required temperature setting of the inner tank 2, the phase transition temperature of the outer cold storage body 51 can be set below 0°C (including 0°C), so that the outer cool storage body 51 can store more More energy, even in the case of a power failure, it can continue to supply cooling to the inner cold storage body 52, and the inner cold storage body 52 changes phases above 2°C to ensure the compartment temperature of the inner tank 2 need.
  • the cold storage agent in the outer cold storage body 51 and/or the inner cold storage body 52 can be a cold storage agent of a single substance, such as a single organic substance, or a composite phase change material, such as,
  • a single substance such as a single organic substance
  • a composite phase change material such as,
  • Organic substances such as hexadecane, n-octane, n-nonane, n-heptane, p-xylene, benzene, paraffin, etc.
  • inorganic Salt such as ammonium chloride, calcium chloride, sodium chloride, etc.
  • the above-mentioned composite phase-change materials can also include the above-mentioned organic and inorganic salts at the same time, and a suitable composite phase-change material can be obtained by adjusting the components of each material. Material.
  • the refrigerating part 41 is used to provide cooling capacity to the at least two cold storage bodies, and the specific structure of the refrigerating part 41 is not limited. For example, it can be an evaporator or a semiconductor refrigerator.
  • the refrigerating part 41 When it is an evaporator, the core tube of the evaporator circulates a refrigerant, and the cold energy carried by the refrigerant is transferred to the at least two cold storage bodies.
  • the refrigeration unit 41 is a semiconductor refrigerator, the cooling end of the semiconductor refrigerator Cooling energy is transferred to the at least two cool storage bodies.
  • the refrigerating part 41 when the refrigerating part 41 is an evaporator, the refrigerating part 41 also includes a compressor, a condenser, a capillary tube, etc., and the low-temperature and low-pressure refrigerant dry ice and vapor from the evaporator are insulated through the compressor. After being compressed, it becomes high-temperature and high-pressure superheated steam. The high-temperature and high-pressure superheated steam from the compressor enters the condenser, condenses under equal pressure conditions, and dissipates heat to the surrounding environment medium to become high-pressure supercooled liquid.
  • High-pressure supercooled liquid After throttling by the capillary tube, it becomes a low-temperature and low-pressure refrigerant vapor, which boils in the evaporator under equal pressure conditions, absorbs the heat of the surrounding medium, and turns into low-temperature and low-pressure refrigerant dry ice and vapor to realize refrigeration. to provide cold energy to the at least two cold storage bodies.
  • the semiconductor refrigerator utilizes the Peltier effect of semiconductor materials.
  • the direct current passes through the galvanic couple formed by two different semiconductor materials in series, the two ends of the galvanic couple can respectively absorb The heat and the released heat can achieve the purpose of refrigeration.
  • It is a refrigeration technology that produces negative thermal resistance. It is characterized by no moving parts and high reliability.
  • a refrigeration end will be formed on the semiconductor refrigerator. Radiation from the cooling end to the at least two cold storage bodies does not need to consider the problem of refrigerant, such as sealing, etc., the structure is simple, and the cooling effect is good.
  • the number of the cold storage body is not limited, such as, it can be 2, 3, 4, 5, 6 or more, from the inner wall of the box 1 to the Between the inner tanks 2, the phase transition temperature points at which the number of multiple cold storage bodies can be set can be increased sequentially to achieve a step-by-step transition of temperature, further refine the gradient distribution of the temperature, and reduce the temperature of the inner tank 2.
  • the risk of sudden temperature changes makes the temperature stability in the two compartments of the inner tank better, and the combination of the composite phase change materials in each of the regenerators can be set differently.
  • the present application does not limit the specific installation position of the refrigeration unit 41, for example, it can be arranged between the box body 1 and the outer cold storage body 51, or it can be arranged between the outer cold storage body 51 and the inner cool storage body 51.
  • Between the regenerators 52 when it is arranged between the box body 1 and the outer regenerator 51, on the one hand, it facilitates the arrangement of the at least two regenerators;
  • the intensity of radiated cold energy in the inner cold storage body 52 reduces the risk of sudden temperature changes in the inner tank 2, and when it is arranged between the outer cold storage body 51 and the inner cold storage body 52, it can reduce the direction of cooling energy.
  • the box body 1 is dissipated outside, and more cold energy is stored in the at least two cold storage bodies, which reduces energy consumption and improves user experience, which has a good effect.
  • the shape of the cold storage body is not limited, for example, it can be tube-shaped, plate-shaped, or bag-shaped, etc.
  • the inner tank 2 can transfer cold energy by using a flat cold storage body, such as a plate-shaped cold storage body. In this way, the contact area between the cold storage body and the refrigeration unit 41 is relatively large, which is convenient for cold storage. Exchange, reduce the loss of cooling capacity and improve the exchange efficiency.
  • the refrigeration unit 41 is arranged between the box body 1 and the outer cold storage body 51
  • a first cooling layer 6 is provided between the cooling unit 41 and the external cold storage body 51, and the cooling (heat) coefficient of the first cooling layer 6 is obviously higher than that of air.
  • the efficiency of cold energy transfer is improved, and on the other hand, the overall temperature of the outer cold storage body 51 is made uniform, so that the temperature inside the inner tank 2 is also uniform, reducing the occurrence of temperature gradients inside the inner tank 2 , improving the user experience.
  • a fourth uniform cooling layer can be set between the at least two cold storage bodies, and the fourth uniform cooling layer
  • the cold (heat) coefficient of the cold layer is obviously higher than that of the air.
  • the efficiency of cold energy transfer is improved, and on the other hand, the efficiency of cold energy transfer between the inner cold storage body 52 and the outer cold storage body 51 is improved.
  • the uniformity makes the overall temperature of the internal cold storage body 52 uniform, so that the temperature in the inner tank 2 is also uniform, reducing the occurrence of temperature gradients inside the inner tank 2 and improving user experience.
  • a second uniform cooling layer is provided between the refrigeration unit 41 and the inner cold storage body 52,
  • the cold conductivity (heat) coefficient of the second uniform cooling layer is obviously higher than that of air.
  • it improves the efficiency of cold energy transfer, and on the other hand, it makes the overall temperature of the inner cold storage body 52 uniform, so that the inner cold storage body 52
  • the temperature inside the liner 2 will also be uniform, reducing the occurrence of temperature gradients inside the liner 2 and improving user experience.
  • a third uniform is provided between the refrigeration unit 41 and the outer cold storage body 51 .
  • the cold (heat) coefficient of the third uniform cooling layer is obviously higher than that of air.
  • the efficiency of cold energy transfer is improved, and on the other hand, the overall temperature of the external cold storage body 51 is made uniform.
  • first cooling layer 6, the second cooling layer, the third cooling layer and the fourth cooling layer can be provided with the same material, or can be provided with different materials.
  • the material for example, can be graphene material, metal material, etc., and the above materials can be attached to the substrate by spraying.
  • the specific installation positions of the refrigeration unit 41 and the at least two cold storage bodies in the box body 1 are not limited, for example, they can be arranged on the side of the inner tank 2 correspondingly, It can also be arranged on the bottom of the inner container 2 correspondingly, of course, it can also be arranged on the bottom and the side of the inner container 2 at the same time.
  • the refrigerating part 41 and the at least two regenerators are correspondingly arranged on the bottom and/or side of the inner container 2. It should be noted that the refrigerating part 41 and the At least two regenerators are correspondingly arranged, and the cold energy of the refrigeration unit 41 is radiated to the at least two regenerators, and the at least two regenerators radiate the cold energy to the inner container 2, as much as possible
  • the refrigerating part 41 and the at least two cold storage bodies are arranged on the bottom and side of the inner container 2, three-dimensionally surround the inner container 2, so that the at least two cold storage bodies radiate toward the inner container 2
  • the cooling capacity is uniform, so that the temperature in the inner tank 2 is uniform.
  • the evaporator may be arranged only on the side of the inner container 2, and the at least two cold storage bodies are arranged in the inner container 2.
  • the bottom and side of the inner tank 2 through the internal cooling effect between the at least two cold storage bodies, the cold energy of the cold storage body structure section located on the side of the inner tank 2 is transferred to the inner tank 2
  • the cold storage body structure section in the bottom of the inner tank 2 realizes the three-dimensional cold radiation to the inner tank 2 and improves the uniformity of temperature in the inner tank 2 .
  • a plurality of semiconductor refrigeration sheets can be arranged on the bottom and side of the inner tank 2 at the same time, and a plurality of the semiconductor refrigeration sheets are used to surround the semiconductor refrigerator.
  • the form of the inner container 2 realizes the three-dimensional cold radiation to the inner container 2, and improves the uniformity of the temperature in the inner container 2.
  • a thermal insulation layer 7 is provided between the inner tank 2 and the box body 1, that is, between the inner wall of the box body 1, the refrigeration unit 41 and the at least two cold storage bodies
  • the insulation layer 7 is filled in the gap, and the insulation layer 7 reduces the loss of cold energy transmitted to the outside and improves the user experience.
  • the material of the thermal insulation layer 7 is a lightweight thermal insulation material with a small thermal conductivity, such as polyurethane foam, polystyrene, etc., which can be used in the inner tank 2 and the The cooling part 41 and the at least two cold storage bodies are arranged between the box body 1. After positioning and fixing, then between the inner tank 2 and the box body 1, the method of on-site spraying and molding is adopted. Moldable.
  • the temperature sensor 8 Directly extending the temperature sensor 8 into the inner container 2 will affect the content space of the inner container 2 on the one hand, and on the other hand, will cause collisions between the temperature sensor 8 and fresh-keeping products. In order to avoid the risk of damage, the temperature sensor 8 can be arranged outside the inner tank 2 to obtain the temperature of the inner tank 2 indirectly.
  • a temperature sensor 8 is further provided between the inner tank 2 and the box body 1, and the temperature sensor 8 is located between the inner cold storage body 52 and the inner tank 2,
  • the temperature of the inner container 2 can be obtained indirectly, so that the action of the refrigeration unit 41 can be better controlled.
  • it can be According to different setting positions, set a temperature difference, for example, 0.5°C, 0.6°C, 0.7°C, etc. The above temperature difference can be obtained through experimental data.
  • multiple temperature sensors 8 may be provided, for example, multiple correspondingly arranged in the width direction of the inner regenerator 52, corresponding to The length direction of the internal cold storage body 52 is arranged in multiples, etc., so as to fully obtain the compartment temperature of the inner tank 2 .
  • the evaporator includes a refrigerant core tube, and when the refrigerant flows in the refrigerant core tube, it continuously releases cold energy to the at least two cold storage bodies,
  • the refrigerant core tube generally has a certain length, and the cooling capacity of the refrigerant in the refrigerant tube is distributed in a gradient manner.
  • the temperature of the refrigerant is relatively lowest near the refrigerant inlet of the refrigerant core tube. At the refrigerant outlet of the core tube, the temperature of the refrigerant is relatively the highest.
  • the temperature sensor 8 can be correspondingly The refrigerant outlet is provided, and the temperature distribution of the internal cold storage body 52 can be obtained by using a small number of the temperature sensors 8, which reduces the cost.
  • the flow direction of the refrigerant in the refrigerant core tube can be from bottom to top, or from top to bottom, corresponding to different flow directions of refrigerant, the installation position of the temperature sensor 8 also needs to be adjusted adaptively, in one embodiment, corresponding to A compressor is arranged at the bottom of the inner tank 2, and the refrigerant flows from top to bottom.
  • the upper end of the refrigerant core tube is the refrigerant inlet, and the lower end is the refrigerant outlet.
  • the evaporator and the at least two cold storage bodies are correspondingly arranged
  • the side part of the inner container 2, the lower end of the evaporator extends to the lower end of the inner cold storage body 52, the refrigerant outlet is set at the lower end of the refrigeration part 41, and the temperature sensor 8 corresponds to the lower end of the inner cold storage body 52.
  • the lower end of the inner cold storage body 52 is arranged, and the temperature distribution of the inner cold storage body 52 can be obtained by using a small number of the temperature sensors 8, which reduces the cost.
  • an installation groove 21 is formed on the inner tank 2, and the temperature sensor 8 is hidden in the installation groove 21 to reduce the temperature. The occurrence of interference between the sensor 8 and the at least two regenerators protects the temperature sensor 8 .
  • the installation groove 21 may be directly opened on the outer wall of the inner container 2 by cutting;
  • the installation groove 21 can be directly formed on the corresponding mold when the inner container 2 is formed, specifically, the inner container 2
  • the outer wall is partially concave to form the installation groove 21 .
  • the phase change temperature of the phase change material filled in the inner cold storage body 52 directly determines the temperature of the inner bag 2, therefore, the phase change temperature of the phase change material filled in the inner cold storage body 52 needs to adapt to the The preset required temperature of the inner container 2 of the ice-lined refrigerator 100.
  • the preset required temperature of the inner container 2 of the ice-lined refrigerator 100 ranges from t0 to t1, and the inner cold storage body 52 is filled with The phase change temperature of the phase change material is T0, and t0 ⁇ T0 ⁇ t1.
  • the phase change temperature of the phase change material filled in the inner cold storage body 52 is equal to that of the inner tank 2 of the ice-lined refrigerator 100.
  • the minimum value of the preset required temperature can meet the temperature requirement of the compartment of the inner tank 2, for example, when the preset required temperature of the inner tank 2 of the ice-lined refrigerator 100 is 2°C to 8°C, the
  • the phase change temperature of the phase change material filled in the inner regenerator 52 can be set to 2°C, 2.5°C, 3°C and so on.
  • FIG. 2 is a schematic flowchart of an embodiment of the refrigerator control method provided in the present application.
  • the refrigerator control method includes the following steps:
  • obtaining the first actual temperature parameter of the inner tank 2 may be directly obtaining the compartment temperature of the inner tank 2 through the temperature sensor 8, for example, setting the temperature sensor 8 on the inner tank 2
  • it can also be acquired indirectly, such as setting the temperature sensor 8 between the box body 1 and the inner tank 2, and obtaining the temperature of the inner cold storage body 52
  • the temperature of the inner container 2 is obtained indirectly.
  • the indirect method may be to superimpose a temperature value that needs to be adjusted on the basis of the obtained actual temperature of the internal cold storage body 52 .
  • the preset start-up temperature is the start-up trigger temperature
  • the preset required temperature of the liner 2 of the ice-lined refrigerator 100 is t
  • the start-up adjustment temperature of the ice-lined refrigerator 100 is t2
  • the preset required temperature of the liner 2 of the ice-lined refrigerator 100 is 2°C
  • the start-up adjustment temperature of the ice-lined refrigerator 100 is 0.5°C
  • the refrigeration unit 41 can be turned on for cooling to reduce the temperature of the inner container 2, so that The temperature of the inner container 2 fluctuates within an appropriate range.
  • obtaining the second actual temperature parameter of the inner container 2 may be directly obtaining the compartment temperature of the inner container 2 through a temperature sensor 8, for example, setting the temperature sensor 8 on the inner container 2
  • it can also be acquired indirectly, such as setting the temperature sensor 8 between the box body 1 and the inner tank 2, and obtaining the temperature of the inner cold storage body 52
  • the temperature of the inner container 2 is obtained indirectly.
  • the indirect method may be to superimpose a temperature value that needs to be adjusted on the basis of the obtained actual temperature of the internal cold storage body 52 .
  • the preset shutdown temperature is the shutdown trigger temperature
  • the preset required temperature of the liner 2 of the ice-lined refrigerator 100 is t
  • the shutdown adjustment temperature of the ice-lined refrigerator 100 is t3
  • the If the preset shutdown temperature is T2, T2 t-t3 can be selected for shutdown, that is, the refrigeration unit 41 is turned off.
  • the preset required temperature of the liner 2 of the ice-lined refrigerator 100 is 2°C
  • the shutdown adjustment temperature of the ice-lined refrigerator 100 is 0.5°C
  • the refrigeration unit 41 can be turned off for refrigeration to increase the temperature of the inner liner 2
  • the first actual temperature parameter of the inner tank 2 is obtained, and in response to the fact that the first actual temperature parameter is greater than the preset start-up temperature, the refrigeration unit 41 is controlled to start working, and the refrigeration unit 41 radiate cold energy to the inner cold storage body 52 and the outer cold storage body 51, and the inner cold storage body 52 and the outer cold storage body 51 radiate cold energy to the inner bag 2 to reduce the temperature of the inner bag 2 temperature, obtain the second actual temperature parameter of the inner tank 2, and control the cooling unit 41 to stop working in response to the fact that the second actual temperature parameter is lower than the preset shutdown temperature.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

La présente demande divulgue un réfrigérateur à garniture de glace et un procédé de commande de réfrigérateur. Le réfrigérateur à garniture de glace comprend un corps de réfrigérateur, un récipient interne, une couche d'isolation thermique, au moins deux corps de stockage de froid et une partie de réfrigération. Le contenant interne est disposé dans le corps de réfrigérateur, lesdits au moins deux corps de stockage de froid comprennent un corps de stockage de froid interne et un corps de stockage de froid externe, la température de changement de phase d'un matériau à changement de phase rempli dans le corps de stockage de froid interne est supérieure à la température de changement de phase d'un matériau à changement de phase rempli dans le corps de stockage de froid externe, la partie de réfrigération est utilisée pour fournir un refroidissement aux au moins deux corps de stockage de froid et le refroidissement généré par la partie de réfrigération est transmis aux au moins deux corps de stockage de froid au moyen de la partie de réfrigération pour le stockage.
PCT/CN2022/085398 2021-05-26 2022-04-06 Réfrigérateur à garniture de glace et procédé de commande de réfrigérateur WO2022247476A1 (fr)

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CN108302852A (zh) * 2018-01-12 2018-07-20 深圳市恒鲜物联科技实业有限公司 增加运输半径且防止冷藏物质冻伤的方法及其蓄冷器件
CN113266976A (zh) * 2021-05-26 2021-08-17 合肥美的生物医疗有限公司 冰衬冰箱及冰箱控制方法

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CN211782194U (zh) * 2020-03-16 2020-10-27 中科美菱低温科技股份有限公司 一种冰衬冰箱的制冷装置
CN112158447A (zh) * 2020-10-12 2021-01-01 中运冷链(北京)科技有限公司 一种高寒防冻保温箱及其温控方法
CN113266976A (zh) * 2021-05-26 2021-08-17 合肥美的生物医疗有限公司 冰衬冰箱及冰箱控制方法

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CN103625781A (zh) * 2012-08-23 2014-03-12 派利肯生物制药有限公司 热管理系统和方法
CN211782194U (zh) * 2020-03-16 2020-10-27 中科美菱低温科技股份有限公司 一种冰衬冰箱的制冷装置
CN112158447A (zh) * 2020-10-12 2021-01-01 中运冷链(北京)科技有限公司 一种高寒防冻保温箱及其温控方法
CN113266976A (zh) * 2021-05-26 2021-08-17 合肥美的生物医疗有限公司 冰衬冰箱及冰箱控制方法

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