WO2022247476A1

WO2022247476A1 - Ice lined refrigerator and refrigerator control method

Info

Publication number: WO2022247476A1
Application number: PCT/CN2022/085398
Authority: WO
Inventors: 常志强
Original assignee: 合肥美的生物医疗有限公司
Priority date: 2021-05-26
Filing date: 2022-04-06
Publication date: 2022-12-01
Also published as: CN113266976A

Abstract

The present application discloses an ice lined refrigerator and a refrigerator control method. The ice lined refrigerator comprises a refrigerator body, an inner container, a heat insulation layer, at least two cold storage bodies, and a refrigeration part, wherein the inner container is arranged in the refrigerator body, the at least two cold storage bodies comprise an inner cold storage body and an outer cold storage body, the phase change temperature of a phase change material filled in the inner cold storage body is higher than the phase change temperature of a phase change material filled in the outer cold storage body, the refrigeration part is used to provide cooling to the at least two cold storage bodies, and the cooling generated by the refrigeration part is transmitted to the at least two cold storage bodies by means of the refrigeration part for storage.

Description

Ice-lined refrigerator and refrigerator control method

This application claims the priority of Chinese Patent Application No. 202110582419.2 filed on May 26, 2021, the entire contents of which are hereby incorporated by reference.

technical field

The present application relates to the technical field of refrigerators, in particular to an ice-lined refrigerator and a method for controlling the refrigerator.

Background technique

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.

technical problem

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.

technical solution

In order to achieve the above purpose, the application proposes an ice-lined refrigerator, including:

box;

liner;

Insulation;

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.

In some embodiments, the refrigerating part is arranged between the box body and the external cold storage body.

In some embodiments, a first uniform cooling layer is provided between the cooling part and the external cold storage body.

In some embodiments, the refrigeration unit is disposed between the outer cold storage body and the inner cold storage body.

In some embodiments, 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.

In some embodiments, a fourth uniform cooling layer is provided between the outer cooling storage body and the inner cooling storage body.

In some embodiments, the refrigerating part and the at least two cold storage bodies are correspondingly arranged on the bottom and/or side of the inner container.

In some embodiments, 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.

In some embodiments, 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.

In some embodiments, 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.

In some embodiments, the outer wall of the liner is partially recessed inward to form a mounting groove;

The temperature sensor is arranged in the installation groove.

In some embodiments, the preset required temperature range of the liner of the ice-lined refrigerator is from t0 to t1;

The 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:

box;

liner;

Insulation;

The refrigerator control method includes the following steps:

Acquiring the first actual temperature parameter of the liner;

In response to the fact that the first actual temperature parameter is greater than a preset start-up temperature, control the refrigeration unit to start working;

Obtaining the second actual temperature parameter of the liner;

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.

In some embodiments, 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, and the preset The startup temperature is T1, and the preset shutdown temperature is T2, wherein:

T1=t+t2; and/or, T2=t-t3.

Beneficial effect

In the technical solution provided by the present application, 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.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to the structures shown in these drawings without creative effort.

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.

Explanation of reference numbers:

标号 label	名称 name	标号 label	名称 name
100 100	冰衬冰箱 ice lining refrigerator	51 51	外蓄冷体 External cooling body
1 1	箱体 cabinet	52 52	内蓄冷体 internal cooling body
2 2	内胆 liner	6 6	第一匀冷层 first equine layer
21 twenty one	安装凹槽 mounting groove	7 7	保温层 Insulation
41 41	制冷部 Refrigeration Department	8 8	温度传感器 Temperature Sensor

The realization, functional features and advantages of the present application will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Embodiments of the present invention

The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

It should be noted that if there are directional indications (such as up, down, left, right, front, back...) in the embodiment of 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.

In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes, and cannot be interpreted as indications or hints Its relative importance or implicitly indicates the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist , nor within the scope of protection required by the present application.

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. Applicable to regions and countries with unstable power supply or periodic planned 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 ice row of the cold storage agent with a phase change point of 2°C or higher For cold storage agents with a high phase transition point, 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.

In view of this, the present application proposes an ice-lined refrigerator, wherein Fig. 1 is a schematic cross-sectional structure diagram of an embodiment of the ice-lined refrigerator provided by the present application, and Fig. 2 is a flow chart of an embodiment of the refrigerator control method provided by the present application schematic diagram.

Please refer to FIG. 1 , 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.

In the technical solution provided by the present application, 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. Describe the phase change temperature of the phase change material filled in the outer cold storage body 51, 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. On the one hand, 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. On the other hand, 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.

Common phase change materials can have multiple phases such as solid, liquid, gas, etc. In the ice-lined refrigerator 100, 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. Regarding the different phase transition temperatures of the inner cold storage body 52 and the outer cold storage body 51, they are all the same as described The process in which the 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. The following example illustrates that the 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.

It should be noted that 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, The temperature of the phase transition point of water's liquid state and gaseous state transformation is 0°C. When organic matter is added to water, the temperature of phase transition point will increase. When inorganic salts are added to water, the temperature of phase transition point will become lower. Through Changing the proportion of materials in the aqueous solution can adjust the phase transition temperature of the composite phase change material. 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. Of course, 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. When 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. When 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.

Specifically, 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.

When the refrigerating part 41 is a semiconductor refrigerator, the semiconductor refrigerator utilizes the Peltier effect of semiconductor materials. When 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.

In the technical solution of the present application, 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.

In addition, it should be noted that 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.

Further, in order to improve the efficiency of cold energy exchange between the refrigeration unit 41 and the at least two cold storage bodies, the refrigeration unit 41 is arranged between the box body 1 and the outer cold storage body 51 In the embodiment of the present invention, 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. On the one hand, 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.

In the embodiment in which the refrigeration unit 41 is arranged between the box body 1 and the external cold storage body 51, 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. On the one hand, 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.

In the embodiment in which the refrigeration unit 41 is arranged between the outer cold storage body 51 and the inner cold storage body 52, 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. On the one hand, 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.

Further, in the embodiment in which the refrigeration unit 41 is arranged between the outer cold storage body 51 and the inner cold storage body 52 , a third uniform is provided between the refrigeration unit 41 and the outer cold storage body 51 . In the cold layer, the cold (heat) coefficient of the third uniform cooling layer is obviously higher than that of air. On the one hand, 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. When When the outer cold storage body 51 radiates cold energy to the inner cold storage body 52 and the inner bag 2, the temperature in the inner cold storage body 52 and the inner bag 2 will be uniform, and the occurrence of the inner cold storage body 52 will also be reduced. There is a temperature gradient inside the tube 2, which improves the user experience.

In addition, it should be noted that the 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.

In the embodiment of the present application, 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.

Specifically, in one embodiment, 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.

Of course, in the embodiment where the refrigerating part 41 is the evaporator, 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 .

In the embodiment where the refrigerating part 41 is the semiconductor refrigerator, 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.

In one embodiment, 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.

It should be noted that 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 stability of the temperature in the inner container 2, the height of the temperature directly affects the storage quality of the fresh-keeping products placed in the inner container 2, what can be adopted is to directly set a temperature sensor 8 in the inner container 2, To directly obtain the compartment temperature of the inner tank 2 , of course, multiple temperature sensors 8 may also be provided to monitor the uniformity of the temperature of the inner tank 2 .

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.

Specifically, in one embodiment, 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, To monitor the temperature of the inner cold storage body 52, by monitoring the temperature of the inner cold storage body 52, the temperature of the inner container 2 can be obtained indirectly, so that the action of the refrigeration unit 41 can be better controlled. Of course, 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.

It should be noted that, in order to obtain the temperature of the inner container 2 comprehensively, 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 .

In the embodiment where the refrigerating part 41 is the evaporator, 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, However, 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. In order to comprehensively monitor the temperature of the inner cold storage body 52, so that all the cold storage agents in the inner cold storage body 52 can change phases, 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.

In order to facilitate the installation of the temperature sensor 8, in one embodiment, 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 .

Specifically, when the wall thickness of the inner container 2 is relatively thick, the installation groove 21 may be directly opened on the outer wall of the inner container 2 by cutting; When it is thin, for example, when the inner container 2 is a sheet metal part, 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. In one embodiment, 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. Preferably, 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.

The present application also proposes a refrigerator control method, and 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:

S1. Obtain the first actual temperature parameter of the inner container 2;

It should be noted that 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 Of course, 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. Of course, 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 .

S2. In response to the fact that the first actual temperature parameter is greater than the preset start-up temperature, control the cooling unit 41 to start working;

It should be noted that 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, and the If the preset start-up temperature is T1, T1=t+t2 can be selected to start the start-up, that is, start the refrigeration unit 41. In a specific example, for example, 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, then when the temperature of the inner container 2 is 2.5°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.

S3. Acquiring the second actual temperature parameter of the inner container 2;

It should be noted that 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 Of course, 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. Of course, 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 .

S4. In response to the fact that the second actual temperature parameter is lower than the preset shutdown temperature, control the cooling unit 41 to stop working;

It should be noted that 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, and 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. In a specific example, for example, 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, then when the temperature of the inner liner 2 is 1.5°C, the refrigeration unit 41 can be turned off for refrigeration to increase the temperature of the inner liner 2, Make the temperature of the inner tank 2 fluctuate within an appropriate range.

In the technical solution of the present application, 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. At this time, only the internal cold storage body 52 and the outer cold storage body 51 radiate cold energy to the inner cool storage body 52 and the outer cold storage body 51, and under the loss of cold energy, the temperature of the inner tank 2 gradually increases, so that the inner tank 2 The temperature fluctuates within an appropriate range, which improves the user experience.

The above are only optional embodiments of the present application, and are not intended to limit the patent scope of the present application. Under the inventive concept of the present application, the equivalent structural transformations made by using the description of the application and the contents of the accompanying drawings, or direct/indirect Applications in other relevant technical fields are included in the patent protection scope of the present application.

Claims

An ice-lined refrigerator comprising:

box;

liner;

Insulation;

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 ice-lined refrigerator according to claim 1, wherein the refrigerating part is arranged between the box body and the outer cold storage body.
The ice-lined refrigerator according to claim 2, wherein a first uniform cooling layer is provided between the refrigerating part and the outer cold storage body.
The ice-lined refrigerator according to claim 1, wherein the refrigeration unit is arranged between the outer cold storage body and the inner cold storage body.
The ice-lined refrigerator according to claim 4, wherein a second uniform cooling layer is provided between the refrigerating 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.
The ice-lined refrigerator according to claim 1, wherein a fourth uniform cooling layer is provided between the outer cold storage body and the inner cold storage body.
The ice-lined refrigerator according to claim 1, wherein 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 according to claim 1, wherein the ice-lined refrigerator further comprises a temperature sensor, and the temperature sensor is arranged between the inner cold storage body and the inner container to monitor the temperature of the inner cold storage body. temperature.
The ice-lined refrigerator according to claim 8, wherein the refrigerating part includes an evaporator, 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 ice-lined refrigerator according to claim 9, wherein the evaporator and the at least two cold storage bodies are arranged on the side of the inner container correspondingly, and the lower end of the evaporator extends to the inner cool storage body lower end of

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 ice-lined refrigerator according to claim 8, wherein the outer wall of the inner container is partially concaved inward to form a mounting groove;

The temperature sensor is arranged in the installation groove.
The ice-lined refrigerator according to claim 1, wherein the preset required temperature range of the liner of the ice-lined refrigerator is from t0 to t1;

The phase change temperature of the phase change material filled in the inner cold storage body is T0, and t0≤T0≤t1.
A refrigerator control method for an ice-lined refrigerator according to any one of claims 1 to 12, comprising the following steps:

Acquiring the first actual temperature parameter of the liner;

In response to the fact that the first actual temperature parameter is greater than a preset start-up temperature, control the refrigeration unit to start working;

Obtaining the second actual temperature parameter of the liner;

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 refrigerator control method according to claim 13, wherein 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, and the shutdown adjustment temperature of the ice-lined refrigerator is is t3, the preset startup temperature is T1, and the preset shutdown temperature is T2, wherein:

T1=t+t2; and/or, T2=t-t3.