CN113294957A

CN113294957A - Refrigeration equipment, control method, control device and readable storage medium

Info

Publication number: CN113294957A
Application number: CN202110746347.0A
Authority: CN
Inventors: 周忠利
Original assignee: Guangzhou Midea Hualing Refrigerator Co Ltd
Current assignee: Guangzhou Midea Hualing Refrigerator Co Ltd
Priority date: 2021-07-01
Filing date: 2021-07-01
Publication date: 2021-08-24

Abstract

The invention provides a refrigeration device, a control method, a control device and a readable storage medium. Wherein, refrigeration plant includes: a box liner; the refrigeration system comprises an evaporator, and the evaporator is arranged on one side of the box liner; the sensor is arranged on one side of the box liner facing the evaporator or the evaporator; and the controller is electrically connected with the sensor and is used for adjusting the operation mode of the refrigeration equipment according to the first temperature acquired by the sensor, wherein the operation mode comprises a refrigeration mode and a defrosting mode. Thereby can realize refrigeration plant's accurate refrigeration and defrosting function through a sensor, on the basis of promoting refrigeration plant's standardization rate and manufacturing efficiency, avoid setting up temperature sensor in refrigeration plant's case courage, save refrigeration plant's manufacturing cost.

Description

Refrigeration equipment, control method, control device and readable storage medium

Technical Field

The invention relates to the technical field of refrigeration equipment, in particular to refrigeration equipment, a control method, a control device and a readable storage medium.

Background

In the related art, the temperature sensor of the refrigerator is placed on the side, the top or the back of the refrigerator liner, and is far away from the evaporator, and the temperature sensor of the refrigerator liner can only detect the temperature in the refrigerator but cannot detect the temperature of the evaporator. Therefore, a sensor for detecting the temperature of the evaporator needs to be additionally arranged on the back of the refrigerator, and the refrigerator is reasonably controlled through the temperature of the evaporator, so that frost or ice on an evaporator panel is melted due to untight closing of a refrigerator door or long-time continuous refrigeration of the refrigerator. But the cost is higher by comprehensively controlling the refrigerator through two sensors.

Disclosure of Invention

The present invention is directed to solving or improving at least one of the technical problems of the prior art or the related art.

To this end, a first aspect of the invention provides a refrigeration device.

The second aspect of the invention also provides a control method.

The third aspect of the present invention also provides a control apparatus.

The fourth aspect of the present invention also provides a readable storage medium.

In view of this, a first aspect of the present invention proposes a refrigeration apparatus comprising: a box liner; the refrigeration system comprises an evaporator, and the evaporator is arranged on one side of the box liner; the sensor is arranged on one side of the box liner facing the evaporator or the evaporator; and the controller is electrically connected with the sensor and is used for adjusting the operation mode of the refrigeration equipment according to the first temperature acquired by the sensor, wherein the operation mode comprises a refrigeration mode and a defrosting mode.

The invention provides refrigeration equipment which comprises a box container, a refrigeration system, a sensor and a controller. The refrigerating system comprises an evaporator, the evaporator is used for carrying out heat exchange with the box container, the evaporator is arranged on one side of the box container, and the evaporator is connected with the outer wall surface of any side of the box container. The sensor is arranged on one side of the tank container facing the evaporator or the evaporator, namely the sensor is arranged between the tank container and the evaporator or on one side of the evaporator far away from the tank container. The controller is electrically connected with the sensor. Because the sensor is arranged close to the evaporator, the temperature of the evaporator can be detected through the sensor, and meanwhile, the temperature of the tank container is reduced by absorbing the heat of the tank container through the refrigerant in the evaporator, so that the temperature in the tank container and the temperature of the evaporator have the same change trend, in other words, the temperature in the tank container and the temperature of the accessory of the evaporator have a corresponding relation, and therefore the first temperature collected by the sensor can also be used for representing the temperature in the tank container. Therefore, after the refrigeration equipment is started, the controller can control the refrigeration equipment to execute a refrigeration mode or a defrosting mode according to the first temperature near the evaporator collected by the sensor. And then can realize refrigeration plant's accurate refrigeration and defrosting function through a sensor, on the basis of promoting refrigeration plant's standardization rate and manufacturing efficiency, avoid setting up temperature sensor in refrigeration plant's case courage, save refrigeration plant's manufacturing cost.

It is understood that the refrigeration device includes a refrigerator, an ice chest, and other devices for refrigerating, wherein the refrigerator may be a direct-cooling refrigerator or an air-cooling refrigerator.

The corresponding relation between the temperature in the box container of different refrigeration equipment and the first temperature can be preset, and after the first temperature is detected, the temperature in the box container corresponding to the first temperature can be determined through the corresponding relation. Meanwhile, the temperature in the box container obtained through the first temperature can be displayed, so that a user can know the temperature in the box container in time.

According to the refrigeration equipment provided by the invention, the following additional technical characteristics can be provided:

in any of the above technical solutions, further, the refrigeration apparatus further includes: the heater is arranged on one side of the box container facing the evaporator or the evaporator and is electrically connected with the controller, and the heater is used for heating the evaporator.

In the technical scheme, the refrigeration equipment is provided with the heater, and similarly, the heater is arranged on one side of the tank container facing the evaporator or the evaporator, namely the heater is arranged close to the evaporator or arranged on the evaporator. The controller is electrically connected with the heater, so that the controller can control the heater to heat the evaporator. Under refrigeration plant is in the mode of defrosting, usable heater heating evaporimeter to accelerate the frost or the melting speed of ice on evaporimeter surface, be favorable to promoting the defrosting efficiency, avoided the condition that the evaporimeter heat exchange efficiency is low that leads to when not in time defrosting, and then guarantee refrigeration plant's refrigerating output, be convenient for the fresh-keeping of the article or food in the refrigeration plant.

In any of the above technical solutions, further, the evaporator includes: an evaporation tube; the evaporation plate is connected with the box liner, and the evaporation tube is arranged on the evaporation plate; in the case where the sensor is provided on the evaporator, the sensor is mounted on the evaporation plate.

In this technical solution, the evaporator includes an evaporation tube and an evaporation plate. Wherein, the evaporating plate is connected with the case courage, and the evaporating plate is installed the evaporating pipe, can circulate the refrigerant in the evaporating pipe. The evaporating plate not only plays a fixed role in the evaporating pipe, but also improves the heat exchange area between the evaporating pipe and the box liner, and effectively improves the heat exchange efficiency. Simultaneously, locate the condition of evaporimeter at the sensor under, the sensor also can install on the evaporating plate to the evaporating pipe heat transfer in-process temperature (first temperature) that makes the sensor can accurately gather, and then utilize the first temperature that the sensor was gathered to control refrigeration plant, realize refrigeration plant's refrigeration and defrosting function, on the basis of the standardization rate that promotes refrigeration plant and manufacturing efficiency, avoid setting up temperature sensor in refrigeration plant's case courage, save refrigeration plant's manufacturing cost.

Further, the evaporating pipe comprises a plurality of straight pipes and a plurality of bent pipes, the straight pipes are parallel to each other, a gap is reserved between every two adjacent straight pipes, and two ends of each bent pipe are connected with the straight pipes respectively. Therefore, the plurality of straight pipes and the plurality of bent pipes are distributed on the evaporation plate, the heat dissipation efficiency of the evaporation plate is improved, and the effect of balanced stress of the evaporation plate is achieved.

In any of the above technical solutions, further, the refrigeration system further includes: the inlet of the compressor is connected with the outlet of the evaporator; the inlet of the condenser is connected with the outlet of the compressor, and the outlet of the condenser is connected with the inlet of the evaporator; a throttle valve connected between the outlet of the condenser and the inlet of the evaporator; the controller is electrically connected with the compressor and the throttle valve respectively.

In the technical scheme, the refrigeration system not only comprises an evaporator, but also comprises a compressor, a condenser and a throttle valve. The compressor is connected with the condenser, the evaporator is connected between the compressor and the condenser, the refrigerant is compressed through the compressor, the compressed high-temperature high-pressure gaseous refrigerant flows into the condenser and starts to condense and release heat to become liquid refrigerant, the liquid refrigerant flows into the evaporator from the condenser to absorb heat dissipated by the tank liner, refrigeration of the tank liner is achieved, the refrigerant in the evaporator returns to the compressor again, and refrigeration cycle of the refrigeration system is completed.

Further, one end of a throttle valve is connected to an outlet of the condenser, and the other end of the throttle valve is connected to an inlet of the evaporator, the throttle valve being used to control a flow rate of the refrigerant flowing from the condenser into the evaporator. The controller is respectively electrically connected with the compressor and the throttle valve, so that the flow of the refrigerant can be accurately adjusted by reasonably controlling the compressor and the throttle valve through the controller, the refrigeration performance of the refrigeration equipment is accurately adjusted, and the refrigeration effect of the refrigeration equipment is ensured.

Specifically, when the controller detects that the first temperature is greater than or equal to the third temperature threshold, which indicates that the tank liner and the evaporator perform heat exchange, the temperature near the evaporator is obviously raised by the heat emitted by the tank liner, that is, the temperature in the tank liner is high, and the set refrigeration temperature of the refrigeration equipment cannot be met, the controller controls the compressor to start to operate, so as to promote the circulation of the refrigerant, and the tank liner is refrigerated by the new low-temperature refrigerant in the evaporator. When the controller detects that the first temperature is less than or equal to the fourth temperature threshold, the evaporator is still at a lower temperature after the heat exchange between the tank container and the evaporator is realized, and the temperature in the tank container can be maintained to be at the refrigeration temperature set by the refrigeration equipment within a period of time, the controller controls the compressor to stop running so as to reduce the energy consumption of the compressor and be beneficial to prolonging the service life of the refrigeration system. The third temperature threshold is greater than the fourth temperature threshold, and the third temperature threshold and the fourth temperature threshold are related to the set refrigerating temperature of the tank container by the user, and the set refrigerating temperature of the tank container by the user can be a refrigerating temperature or a freezing temperature.

In any of the above technical solutions, further, the cabinet liner includes a refrigerating chamber; the evaporator comprises a refrigeration evaporator, and the refrigeration evaporator is connected with the first outlet of the throttle valve; the sensor comprises a refrigeration sensor; the controller is also used for adjusting the opening degree of the first outlet according to the second temperature collected by the refrigeration sensor.

In the technical scheme, the box liner comprises a refrigerating chamber, and an illuminating lamp and a shelf for placing articles and food are arranged in the refrigerating chamber. Be provided with cold-stored evaporimeter corresponding the walk-in, the first export of choke valve is connected in this cold-stored evaporimeter, cools down the walk-in through cold-stored evaporimeter. Likewise, the sensor further includes a refrigeration sensor, with the refrigeration sensor acquiring a second temperature around the refrigeration evaporator. The controller is electrically connected with the refrigeration sensor, and the opening degree of the first outlet can be adjusted according to the second temperature acquired by the refrigeration sensor through the controller, so that the flow of the refrigerant flowing through the refrigeration evaporator can be accurately adjusted, the refrigeration performance of the refrigeration equipment can be accurately adjusted, the distribution of the refrigerant is more, and the refrigeration effect of the refrigeration equipment is ensured on the basis of saving resource consumption.

In any of the above technical solutions, further, the cabinet liner includes a freezing chamber; the evaporator comprises a freezing evaporator, and the freezing evaporator is connected with the second outlet of the throttle valve; the sensor comprises a freeze sensor; the controller is also used for adjusting the opening degree of the second outlet according to the third temperature collected by the freezing sensor.

In the technical scheme, the box liner comprises a freezing chamber, a shelf for placing articles and food is arranged in the freezing chamber, and the freezing chamber is mainly used for preserving the articles and food at a lower temperature than the refrigerating chamber. Be provided with freezing evaporimeter corresponding the freezer, the first exit linkage of choke valve is in this freezing evaporimeter, lowers the temperature through freezing evaporimeter to the freezer. Likewise, the sensor may further include a freeze sensor, with the freeze sensor acquiring a third temperature around the freeze evaporator. The controller is electrically connected with the freezing sensor, and the opening degree of the second outlet can be adjusted according to the third temperature acquired by the freezing sensor through the controller, so that the flow of the refrigerant flowing through the freezing evaporator can be accurately adjusted, the freezing refrigeration performance of the refrigeration equipment can be accurately adjusted, the distribution of the refrigerant is more, and the refrigeration effect of the refrigeration equipment is ensured on the basis of saving resource consumption.

Further, the container can comprise a refrigerating chamber and a freezing chamber at the same time, so that the refrigeration temperature of one refrigeration device is not known to be distinguished.

It should be noted that the first temperature includes the second temperature and/or the third temperature.

According to a second aspect of the present invention, there is provided a control method for a refrigeration apparatus, comprising: acquiring a first temperature acquired by a sensor; and adjusting the operation mode of the refrigeration equipment according to the first temperature, wherein the operation mode comprises a refrigeration mode and a defrosting mode.

In this solution, a first temperature around the evaporator is obtained first. Because the sensor is arranged close to the evaporator, the temperature of the evaporator can be represented by the first temperature of the sensor, and meanwhile, due to the heat exchange principle, the heat of the tank liner needs to be absorbed by the refrigerant in the evaporator, so that the tank liner is cooled, the temperature in the tank liner and the temperature of the evaporator have the same variation trend, in other words, the temperature in the tank liner and the temperature of the evaporator have a corresponding relation, and therefore the first temperature collected by the sensor can also be used for representing the temperature in the tank liner. Therefore, after the refrigeration equipment is started, the refrigeration equipment can be controlled to execute a refrigeration mode or a defrosting mode according to the first temperature acquired by the sensor. And then can realize refrigeration plant's accurate refrigeration and defrosting function through first temperature, on the basis that promotes refrigeration plant's standardization rate and manufacturing efficiency, avoid setting up temperature sensor in refrigeration plant's case courage, save refrigeration plant's manufacturing cost.

It should be noted that the refrigeration equipment includes a tank, a refrigeration system and a sensor, the refrigeration system includes a compressor, a condenser and an evaporator, the evaporator is used for exchanging heat with the tank, the evaporator is arranged on one side of the tank, that is, the evaporator is connected with the outer wall surface of any side of the tank. The compressor is connected with the condenser, the evaporator is connected between the compressor and the condenser, the refrigerant is compressed through the compressor, the compressed high-temperature high-pressure gaseous refrigerant flows into the condenser and then begins to condense and release heat to become liquid refrigerant, the liquid refrigerant flows into the evaporator from the condenser to absorb heat emitted by the tank liner, refrigeration of the tank liner is achieved, the refrigerant in the evaporator returns to the compressor again, and refrigeration cycle of the refrigeration system is completed. The sensor is arranged on one side of the tank container facing the evaporator or the evaporator, namely the sensor is arranged between the tank container and the evaporator or on one side of the evaporator far away from the tank container, and the sensor is used for collecting the first temperature around the evaporator.

In any of the above technical solutions, further, adjusting the operation mode of the refrigeration equipment according to the first temperature includes: controlling the refrigeration equipment to enter a refrigeration mode based on the first temperature being greater than or equal to a first temperature threshold; controlling the refrigeration equipment to exit from the refrigeration mode and enter into a defrosting mode based on the fact that the accumulated operation parameter of the refrigeration equipment in the refrigeration mode is larger than the preset operation parameter; in the process of operating the defrosting mode, controlling the refrigeration equipment to exit the defrosting mode and initializing the accumulated operation parameters based on the fact that the first temperature is greater than or equal to a second temperature threshold, wherein the second temperature threshold is greater than the first temperature threshold.

In the technical scheme, when the first temperature is greater than or equal to the first temperature threshold value, the temperature near the evaporator is higher, and the requirement of a user on the refrigerating temperature of the tank container cannot be met, the refrigerating equipment is controlled to enter a refrigerating mode at the moment so as to perform circulating refrigeration of the refrigerating system, and the refrigerating effect of the refrigerating equipment is ensured.

Meanwhile, when the refrigeration equipment operates in the refrigeration mode, the accumulated operation parameters of the refrigeration equipment are recorded, and the frosting degree of the evaporator is reflected through the accumulated operation parameters. Under the condition that the accumulated operation parameter of the refrigeration equipment is greater than the corresponding preset operation parameter, the refrigeration system runs for a long time, and severe frosting or icing phenomena may occur on the evaporator, so that the heat exchange efficiency is not benefited. At this time, the refrigeration apparatus is controlled to be switched from the cooling mode to the defrosting mode to melt a frost layer or ice layer on the evaporator. Therefore, defrosting can be controlled according to the defrosting condition of the evaporator, the refrigerating equipment cannot be defrosted frequently under the condition that the defrosting amount of the refrigerating equipment is less when the refrigerating equipment is used frequently, energy consumption is reduced, and the defrosting process can be entered quickly in time when the refrigerating equipment is used frequently and the defrosting amount is large, so that the condition that defrosting is not timely is avoided, the heat exchange effect of the evaporator is improved, and the freshness of articles or food stored in the refrigerating equipment is convenient to keep.

Further, when the refrigeration equipment operates in the defrosting mode, if the first temperature is detected to be greater than or equal to the second temperature threshold value, it is indicated that a frost layer or an ice layer on the surface of the evaporator is melted, the evaporator is at a temperature at which frost cannot be formed or only a few frost layers exist, at the moment, the refrigeration equipment is controlled to exit from the defrosting mode, so that the refrigeration equipment can continue to carry out efficient refrigeration, the defrosting efficiency is improved, redundant heat generated in the defrosting process is reduced, the energy consumption of the refrigeration equipment is reduced, the energy utilization rate is improved, energy conservation and environmental protection are achieved, the use experience of a user on the refrigeration equipment is improved, and the use cost is reduced. And after the refrigeration equipment exits the defrosting mode, the accumulative running parameters are initialized to return to zero, so that the accumulative running parameters can be recorded again, the periodic automatic defrosting of the evaporator is realized, the accuracy of triggering the defrosting mode is ensured, and the condition of low heat exchange efficiency of the evaporator caused by untimely defrosting and too frequent defrosting is effectively avoided.

The preset operation parameters can be reasonably set according to the defrosting time of the refrigeration equipment, so that the problem of overlong single defrosting time is solved. The first temperature threshold is related to the temperature in the box container, and the equipment can be reasonable according to the refrigerating temperature of the box container set by a user.

In any of the above technical solutions, further, the control method further includes: and in the process of operating the refrigeration mode, controlling the compressor of the refrigeration system to work intermittently according to the first temperature, and recording the accumulated operation parameters, wherein the accumulated operation parameters comprise the accumulated operation times and/or the accumulated operation duration of the compressor.

In the technical scheme, when the refrigeration equipment runs in a refrigeration mode, the evaporator can continuously exchange heat with the tank container in order to ensure that the tank container is at the refrigeration temperature set by a user. The compressor of the refrigerating system is reasonably controlled to work intermittently according to the obtained first temperature around the evaporator, so that the circulating refrigeration of the refrigerating system can be carried out, the refrigeration effect of the refrigerating equipment is ensured, the long-time work of the compressor can be avoided, the possibility of useless work of the compressor is reduced, the energy consumption of the refrigerating equipment is reduced, and the energy utilization rate is improved.

Further, the accumulated operation parameters include an accumulated operation number and/or an accumulated operation time period of the compressor. When the compressor is in the running state, the accumulated running time is continuously accumulated until the refrigeration equipment enters a defrosting mode. Similarly, considering that the variation of the operation time of the compressor per time is small during the intermittent operation of the compressor under the condition that the refrigerating temperature is not changed, the accumulated operation time of the compressor is reflected by the accumulated operation times. Specifically, the accumulated operation times are accumulated once every time the compressor is started. Therefore, the periodical automatic defrosting of the evaporator is realized through the accumulated operation parameters, the accuracy of triggering the defrosting mode is ensured, and the condition that the heat exchange efficiency of the evaporator is low due to untimely defrosting and too frequent defrosting is effectively avoided.

In any of the above solutions, further, the controlling the compressor to operate intermittently according to the first temperature includes: controlling the compressor to operate based on the first temperature being greater than or equal to a third temperature threshold; and controlling the compressor to stop running based on the first temperature being less than or equal to a fourth temperature threshold, wherein the third temperature threshold is greater than the fourth temperature threshold.

In the technical scheme, after the refrigeration equipment enters a refrigeration mode, when the controller detects that the first temperature is greater than or equal to the third temperature threshold value, the fact that the temperature near the evaporator is obviously increased by the heat emitted by the tank liner after the tank liner exchanges heat with the evaporator is shown, that is, the temperature in the tank liner is high and cannot meet the refrigeration temperature set by the refrigeration equipment, the controller controls the compressor to start running so as to promote the circulation of the refrigerant, and the tank liner is refrigerated by the new low-temperature refrigerant in the evaporator. When the controller detects that the first temperature is less than or equal to the fourth temperature threshold, the evaporator is still at a lower temperature after the heat exchange between the tank container and the evaporator is realized, and the temperature in the tank container can be maintained to be at the refrigeration temperature set by the refrigeration equipment within a period of time, the controller controls the compressor to stop running so as to reduce the energy consumption of the compressor and be beneficial to prolonging the service life of the refrigeration system. And the third temperature threshold is greater than the fourth temperature threshold, and the third temperature threshold and the fourth temperature threshold are related to the set refrigerating temperature of the tank container by the user.

It will be appreciated that the third temperature threshold for controlling the start-up of the compressor of the refrigeration system may be equal to the first temperature threshold for triggering the refrigeration appliance to switch to the refrigeration mode, or the third temperature threshold may not be equal to the first temperature threshold.

In any of the above technical solutions, further, the control method further includes: and controlling the compressor of the refrigeration system to stop running during the defrosting mode.

According to the technical scheme, when the refrigeration equipment operates in the defrosting mode, the compressor of the refrigeration system is controlled to stop operating. The frost layer or the ice layer on the evaporator is utilized to exchange heat with the tank liner, so that the frost layer or the ice layer is slowly melted by the heat emitted by the tank liner. Therefore, an additional defrosting device is not required to be arranged in the refrigeration equipment, the internal space of the refrigeration equipment is saved, the cost of the whole refrigeration equipment is reduced, meanwhile, the defrosting device is not required to be heated, so that the energy consumption of the refrigeration equipment is reduced, and in addition, the defect of high local temperature caused by the defrosting device is avoided, so that the potential safety hazard of the refrigeration equipment adopting the flammable refrigerant is eliminated.

In any of the above technical solutions, further, the control method further includes: controlling a heater of the refrigeration equipment to heat the evaporator in the defrosting mode; after controlling the refrigeration plant to exit the defrosting mode, the method further comprises the following steps: and controlling the heater to stop heating.

In this technical scheme, when refrigeration plant operates in the mode of changing frost, usable heater heating evaporimeter to accelerate the frost on evaporimeter surface or the speed of melting of ice, make the evaporimeter can resume efficient heat transfer state fast, shorten the time of changing frost, be favorable to promoting the efflorescence efficiency, the condition that the evaporimeter heat exchange efficiency is low of having avoided changing frost untimely to lead to, and then guarantee refrigeration plant's refrigerating capacity, the fresh-keeping of the article or food in the refrigeration plant of being convenient for.

In any of the above technical solutions, further, the evaporator includes a refrigeration evaporator, the sensor includes a refrigeration sensor, and the control method further includes: and adjusting the opening degree of a first outlet of a throttle valve of the refrigerating system according to the second temperature acquired by the refrigerating sensor.

In the technical scheme, under the condition that the refrigeration equipment is in a refrigeration mode, the second temperature around the refrigeration evaporator collected by the refrigeration sensor is firstly obtained, and the opening degree of the first outlet of the throttle valve is controlled according to the second temperature, so that the flow of the refrigerant flowing through the refrigeration evaporator can be accurately adjusted, the refrigeration performance of the refrigeration equipment can be accurately adjusted, the refrigerant is more distributed, and the refrigeration effect of the refrigeration equipment is ensured on the basis of saving resource consumption.

In any of the above technical solutions, further, the evaporator includes a refrigeration evaporator, the sensor includes a refrigeration sensor, and the control method further includes: and adjusting the opening degree of a second outlet of a throttle valve of the refrigerating system according to the third temperature acquired by the freezing sensor.

In the technical scheme, under the condition that the refrigeration equipment is in a refrigeration mode, the third temperature around the refrigeration evaporator collected by the refrigeration sensor is firstly obtained, and the opening degree of the second outlet of the throttle valve is controlled according to the third temperature, so that the flow of the refrigerant flowing through the refrigeration evaporator can be accurately adjusted, the refrigeration performance of the refrigeration equipment can be accurately adjusted, the refrigerant is more distributed, and the refrigeration effect of the refrigeration equipment is ensured on the basis of saving resource consumption.

According to a third aspect of the present invention, there is provided a control device for a refrigeration appliance, comprising: the acquisition module is used for acquiring a first temperature acquired by the sensor; the control module is used for adjusting the operation mode of the refrigeration equipment according to the first temperature, wherein the operation mode comprises a refrigeration mode and a defrosting mode.

According to a fourth aspect of the present invention, a readable storage medium is proposed, on which a program or instructions are stored, which when executed by a processor perform the control method proposed by the second aspect. Therefore, the readable storage medium has all the advantages of the control method provided in the second aspect, and redundant description is omitted to avoid repetition.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 illustrates one of the partial perspective views of a refrigeration unit of one embodiment of the present invention;

FIG. 2 shows a second partial perspective view of a refrigeration unit in accordance with an embodiment of the present invention;

FIG. 3 shows a schematic diagram of a refrigeration system according to an embodiment of the present invention;

FIG. 4 shows one of the flow diagrams of the control method of one embodiment of the present invention;

FIG. 5 is a second flowchart of a control method according to an embodiment of the invention;

FIG. 6 is a third flow chart of a control method according to an embodiment of the invention;

FIG. 7 shows a fourth flowchart of a control method of an embodiment of the invention;

FIG. 8 shows a fifth flowchart of a control method of an embodiment of the invention;

FIG. 9 shows a sixth schematic flow chart of a control method of an embodiment of the invention;

fig. 10 is a flowchart illustrating a control method of a refrigerator according to an embodiment of the present invention;

fig. 11 is a second flowchart illustrating a control method of a refrigerator according to a specific embodiment of the present invention;

fig. 12 shows a schematic block diagram of a control device of an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 3 is:

110 cabinet, 120 refrigeration system, 121 evaporator, 122 condenser, 123 compressor, 124 throttle valve, 130 sensor, 140 heater, 1212 evaporator tube, 1214 evaporator plate.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

A refrigeration apparatus, a control method, a control device, and a readable storage medium provided according to some embodiments of the present invention are described below with reference to fig. 1 to 12.

Example 1:

as shown in fig. 1 and 3, according to an embodiment of the first aspect of the present invention, there is provided a refrigeration apparatus including: the cabinet 110, the refrigeration system 120, the sensor 130, and the controller (not shown).

In detail, the refrigeration system 120 includes an evaporator 121, the evaporator 121 is disposed at one side of the cabinet 110, that is, the evaporator 121 is connected to an outer wall surface of any one side of the cabinet 110, and the evaporator 121 exchanges heat with the cabinet 110. The sensor 130 is disposed on a side of the tank 110 facing the evaporator 121 or the sensor 130 is disposed at the evaporator 121, that is, the sensor 130 is disposed between the tank 110 and the evaporator 121 or a side of the evaporator 121 far away from the tank 110. The sensor 130 may be electrically connected to a controller for adjusting an operation mode of the refrigeration appliance according to the first temperature sensed by the sensor 130.

The operation mode comprises a cooling mode and a defrosting mode.

In this embodiment, since the sensor 130 is disposed close to the evaporator 121, the temperature of the evaporator 121 can be detected by the sensor 130, and since the refrigerant in the evaporator 121 absorbs the heat of the tank liner 110 to cool the tank liner 110, the temperature in the tank liner 110 and the temperature of the evaporator 121 have the same trend of change, in other words, there is a corresponding relationship between the temperature in the tank liner 110 and the temperature of the evaporator 121, the temperature collected by the sensor 130 can also be used to represent the temperature in the tank liner 110. Therefore, after the refrigeration equipment is started, the controller can control the refrigeration equipment to execute a refrigeration mode or a defrosting mode according to the first temperature near the evaporator 121 acquired by the sensor 130. And then can realize the accurate refrigeration and the function of defrosting of refrigeration plant through a sensor 130, on the basis of promoting refrigeration plant's standardization rate and manufacturing efficiency, avoid setting up temperature sensor 130 in refrigeration plant's case courage 110, save refrigeration plant's manufacturing cost.

Specifically, the evaporator 121 may be located on any side of the tank 110, and may be set according to the user's requirement. The evaporator 121 includes a fin type heat exchanger.

It is understood that the refrigeration device includes a refrigerator, an ice chest, and other devices for refrigerating, wherein the refrigerator may be a direct-cooling refrigerator or an air-cooling refrigerator. If the refrigeration equipment is an air-cooled refrigerator, the refrigeration system 120 further includes a fan for driving circulation of cold air.

Further, the corresponding relation between the temperature in the tank container of different refrigeration equipment and the first temperature can be preset, and after the first temperature is detected, the temperature in the tank container corresponding to the first temperature can be determined through the corresponding relation. Meanwhile, the temperature in the box container obtained through the first temperature can be displayed, so that a user can know the temperature in the box container in time.

Example 2:

as shown in fig. 2 and 3, according to an embodiment of the invention, comprising the features defined in any of the above embodiments, and further: the refrigeration appliance further comprises: a heater 140.

In detail, the heater 140 is disposed at one side of the tank 110 facing the evaporator 121 or the heater 140 is disposed at the evaporator 121 and electrically connected to the controller, and the heater 140 is used for heating the evaporator 121.

In this embodiment, the refrigeration apparatus is provided with the heater 140, and likewise, the heater 140 is provided at the side of the tank 110 facing the evaporator 121 or the evaporator 121, that is, the heater 140 is provided close to the evaporator 121 or on the evaporator 121. The controller is electrically connected to the heater 140, so that the controller can control the heater 140 to heat the evaporator 121. Under refrigeration plant is in the mode of defrosting, usable heater 140 heats evaporimeter 121 to accelerate the frost or the melting speed of ice on evaporimeter 121 surface, be favorable to promoting the defrosting efficiency, avoided the untimely condition that leads to of defrosting evaporimeter 121 heat exchange efficiency low, and then guarantee refrigeration plant's refrigerating capacity, be convenient for the fresh-keeping of the article or food in the refrigeration plant.

Further, can also set up water drainage tank in evaporimeter 121 below for water after the defrosting passes through water drainage tank discharge refrigeration plant outside, avoids the possibility of the water after the defrosting gathering in refrigeration plant, promotes the user and uses experience, reinforcing product competitiveness. Meanwhile, because the heater 140 is arranged close to the evaporator 121, when the heater 140 is heated, part of heat can also be diffused to the drainage channel, so that the possibility of the phenomenon of icing and blocking of the fluid in the drainage channel is reduced, and the fluidity of the fluid in the drainage channel is ensured.

Example 3:

as shown in fig. 1 and 2, according to an embodiment of the invention, comprising the features defined in any of the above embodiments, and further: the evaporator 121 includes: an evaporation tube 1212 and an evaporation plate 1214.

Specifically, the evaporation plate 1214 is connected to the tank 110, and the evaporation tube 1212 is attached to the evaporation plate 1214. Also, if the sensor 130 is provided at the evaporator 121, the sensor 130 may be mounted on the evaporation plate 1214.

In this embodiment, the evaporation plate 1214 is connected to the tank 110, the evaporation tube 1212 is attached to the evaporation plate 1214, and the refrigerant can flow through the evaporation tube 1212. The evaporating plate 1214 not only fixes the evaporating pipe 1212, but also increases the heat exchange area between the evaporating pipe 1212 and the tank container 110, thereby effectively increasing the heat exchange efficiency. Meanwhile, under the condition that evaporator 121 is located to sensor 130, sensor 130 also can be installed on evaporating plate 1214, so that the temperature (first temperature) of evaporating pipe 1212 heat transfer in-process that sensor 130 can accurately gather, and then utilize the first temperature that sensor 130 gathered to control refrigeration plant, realize refrigeration plant's refrigeration and defrosting function, on the basis of promoting refrigeration plant's standardization rate and manufacturing efficiency, avoid setting up temperature sensor 130 in refrigeration plant's case courage 110, save refrigeration plant's manufacturing cost.

Further, the evaporation tube 1212 includes a plurality of straight tubes and a plurality of return bends, the straight tubes are parallel to each other, and a gap is provided between two adjacent straight tubes, and both ends of each return bend are connected with the straight tubes respectively. Therefore, the plurality of straight pipes and the plurality of bent pipes are distributed on the evaporation plate 1214, the heat dissipation efficiency of the evaporation plate 1214 is improved, and the effect of balanced stress of the evaporation plate 1214 is achieved.

Specifically, the evaporation plate 1214 is a metal plate, and the evaporation plate 1214 made of metal has good ductility and processability, so as to meet the requirement of processing the inside of the evaporation plate 1214, and the evaporation plate 1214 also has good corrosion resistance and thermal conductivity, so as to meet the requirement of high-corrosivity water-liquid mixture on the material of the evaporation plate 1214 in the actual use environment. For example, the evaporation plate 1214 is an aluminum plate.

Example 4:

as shown in fig. 3, according to an embodiment of the invention, comprising the features defined in any of the above embodiments, and further: the refrigeration system 120 includes an evaporator 121, a compressor 123, a condenser 122, and a throttle valve 124.

In detail, an inlet of the compressor 123 is connected to an outlet of the evaporator 121. An inlet of the condenser 122 is connected to an outlet of the compressor 123, and an outlet of the condenser 122 is connected to an inlet of the evaporator 121. A throttle valve 124 is connected between the outlet of the condenser 122 and the inlet of the evaporator 121. The controller is electrically connected to the compressor 123 and the throttle valve 124, respectively.

In this embodiment, the refrigeration system 120 includes not only the evaporator 121 but also a compressor 123, a condenser 122, and a throttle valve 124. The compressor 123 is connected to the condenser 122, the evaporator 121 is connected between the compressor 123 and the condenser 122, the refrigerant is compressed by the compressor 123, the compressed high-temperature and high-pressure gaseous refrigerant flows into the condenser 122 and then starts to condense and release heat and is changed into a liquid refrigerant, the liquid refrigerant flows into the evaporator 121 from the condenser 122 to absorb heat dissipated from the tank liner 110, refrigeration of the tank liner 110 is realized, finally, the refrigerant in the evaporator 121 returns to the compressor 123 again, and the refrigeration cycle of the refrigeration system 120 is completed.

Further, one end of a throttle valve 124 is connected to an outlet of the condenser 122, and the other end of the throttle valve 124 is connected to an inlet of the evaporator 121, and the throttle valve 124 is used to control a flow rate of the refrigerant flowing from the condenser 122 into the evaporator 121. The controller is respectively electrically connected with the compressor 123 and the throttle valve 124, so that the flow of the refrigerant can be accurately adjusted by reasonably controlling the compressor 123 and the throttle valve 124 through the controller, the refrigeration performance of the refrigeration equipment is accurately adjusted, and the refrigeration effect of the refrigeration equipment is ensured.

Specifically, when the controller detects that the first temperature is greater than or equal to the third temperature threshold, which indicates that the tank container 110 exchanges heat with the evaporator 121, the temperature near the evaporator 121 is significantly raised by the heat emitted from the tank container 110, that is, the temperature in the tank container 110 is high and cannot meet the set cooling temperature of the refrigeration equipment, the controller controls the compressor 123 to start operating to promote the circulation of the refrigerant, so as to cool the tank container 110 by the new low-temperature refrigerant in the evaporator 121. When the controller detects that the first temperature is less than or equal to the fourth temperature threshold, which indicates that the evaporator 121 is still at a lower temperature after the heat exchange between the tank container 110 and the evaporator 121, and the temperature in the tank container 110 can be maintained at the refrigeration temperature set by the refrigeration equipment within a period of time, the controller controls the compressor 123 to stop operating, so as to reduce the energy consumption of the compressor 123, and facilitate prolonging the service life of the refrigeration system 120. The third temperature threshold is greater than the fourth temperature threshold, and the third temperature threshold and the fourth temperature threshold are related to the set refrigeration temperature of the cabinet 110 by the user, and the set refrigeration temperature of the cabinet 110 by the user may be a refrigeration temperature or a freezing temperature. For example, the refrigerating temperature set by the user is 2 ℃, the corresponding third temperature threshold value is 4 ℃, and when the first temperature is greater than or equal to 4 ℃, the compressor 123 is controlled to start.

It is worth mentioning that the condenser 122 comprises a first condenser 122 and a second condenser 122 in series with each other. Thus, even in a scene with a large refrigeration demand, the refrigeration effect of the refrigeration system 120 can be ensured.

It is understood that a dry filter may also be disposed between the condenser 122 and the throttle valve 124 of the refrigeration system 120. Therefore, moisture and solid impurities in the liquid refrigerant from the condenser 122 can be absorbed, the corrosion effect of the moisture on the refrigeration system 120 is reduced or even eliminated, and the blockage of capillaries or other parts in the refrigeration system 120 can be prevented, so that the pipeline is smooth and the refrigeration system 120 works normally.

Example 5:

according to an embodiment of the invention, including the features defined in any of the above embodiments, and further: the box container comprises a refrigerating chamber, the evaporator comprises a refrigerating evaporator, and the sensor comprises a refrigerating sensor.

In detail, the refrigerating evaporator is connected to a first outlet of the throttle valve. The controller is electrically connected with the refrigeration sensor and is used for adjusting the opening degree of the first outlet according to the second temperature acquired by the refrigeration sensor.

In this embodiment, the cabinet container includes a refrigerating compartment in which an illumination lamp and a shelf for placing articles and food are disposed. Be provided with cold-stored evaporimeter corresponding the walk-in, the first export of choke valve is connected in this cold-stored evaporimeter, cools down the walk-in through cold-stored evaporimeter. Likewise, the sensor further includes a refrigeration sensor, with the refrigeration sensor acquiring a second temperature around the refrigeration evaporator. The controller is electrically connected with the refrigeration sensor, and the opening degree of the first outlet can be adjusted according to the second temperature acquired by the refrigeration sensor through the controller, so that the flow of the refrigerant flowing through the refrigeration evaporator can be accurately adjusted, the refrigeration performance of the refrigeration equipment can be accurately adjusted, the distribution of the refrigerant is more, and the refrigeration effect of the refrigeration equipment is ensured on the basis of saving resource consumption.

Specifically, for example, the refrigerating temperature of the refrigerating chamber is 1 ℃, the corresponding third temperature threshold value is 2 ℃, and when the detected second temperature is 5 ℃, the refrigeration needs to be started. The difference between the third temperature threshold and the second temperature is calculated to be 3 deg.c. And determining a target opening corresponding to the difference value by using a corresponding relation between the preset difference value and the preset opening, and adjusting the current opening of the first outlet to the target opening so as to ensure that the refrigerating evaporator has enough refrigerant for exchanging heat with the refrigerating chamber.

Example 6:

according to an embodiment of the invention, including the features defined in any of the above embodiments, and further: the box container comprises a freezing chamber, the evaporator comprises a freezing evaporator, and the sensor comprises a freezing sensor.

In detail, the freezing evaporator is connected to the second outlet of the throttle valve. The controller is electrically connected with the freezing sensor and is used for adjusting the opening degree of the second outlet according to the third temperature acquired by the freezing sensor.

In this embodiment, the cabinet includes a freezing chamber in which shelves for holding articles and food are provided, the freezing chamber being mainly used for preserving articles and food at a lower temperature than the refrigerating chamber. Be provided with freezing evaporimeter corresponding the freezer, the first exit linkage of choke valve is in this freezing evaporimeter, lowers the temperature through freezing evaporimeter to the freezer. Likewise, the sensor may further include a freeze sensor, with the freeze sensor acquiring a third temperature around the freeze evaporator. The controller is electrically connected with the freezing sensor, and the opening degree of the second outlet can be adjusted according to the third temperature acquired by the freezing sensor through the controller, so that the flow of the refrigerant flowing through the freezing evaporator can be accurately adjusted, the freezing refrigeration performance of the refrigeration equipment can be accurately adjusted, the distribution of the refrigerant is more, and the refrigeration effect of the refrigeration equipment is ensured on the basis of saving resource consumption.

Example 7:

as shown in fig. 4, according to an embodiment of a second aspect of the present invention, there is provided a control method for a refrigeration apparatus, including:

step 202, acquiring a first temperature acquired by a sensor;

and 204, adjusting the operation mode of the refrigeration equipment according to the first temperature.

The operation mode comprises a cooling mode and a defrosting mode.

In this embodiment, a first temperature around the evaporator is first taken. Because the sensor is arranged close to the evaporator, the temperature of the evaporator can be represented by the first temperature of the sensor, and meanwhile, due to the heat exchange principle, the heat of the tank liner needs to be absorbed by the refrigerant in the evaporator, so that the tank liner is cooled, the temperature in the tank liner and the temperature of the evaporator have the same variation trend, in other words, the temperature in the tank liner and the temperature of the evaporator have a corresponding relation, and therefore the first temperature collected by the sensor can also be used for representing the temperature in the tank liner. Therefore, after the refrigeration equipment is started, the refrigeration equipment can be controlled to execute a refrigeration mode or a defrosting mode according to the first temperature acquired by the sensor. And then can realize refrigeration plant's accurate refrigeration and defrosting function through first temperature, on the basis that promotes refrigeration plant's standardization rate and manufacturing efficiency, avoid setting up temperature sensor in refrigeration plant's case courage, save refrigeration plant's manufacturing cost.

Example 8:

as shown in fig. 5, according to an embodiment of the present invention, there is provided a control method for a refrigeration apparatus, including:

step 302, acquiring a first temperature acquired by a sensor;

step 304, judging whether the first temperature is greater than or equal to a first temperature threshold value, if so, entering step 306, and if not, entering step 302;

step 306, controlling the refrigeration equipment to enter a refrigeration mode;

308, controlling the compressor of the refrigeration system to work intermittently according to the first temperature, and recording accumulated operation parameters;

step 310, judging whether the accumulated operation parameter is greater than a preset operation parameter, if so, entering step 312, and if not, entering step 308;

step 312, controlling the refrigeration equipment to exit the refrigeration mode and enter a defrosting mode;

step 314, acquiring a first temperature acquired by a sensor;

in step 316, whether the first temperature is greater than or equal to the second temperature threshold value, if yes, go to step 318, and if no, go to step 314.

Wherein the second temperature threshold is greater than the first temperature threshold.

And step 318, controlling the refrigeration equipment to exit the defrosting mode, and initializing the accumulative running parameters.

In this embodiment, when the first temperature is greater than or equal to the first temperature threshold, it is indicated that the temperature near the evaporator is high and cannot meet the refrigeration temperature requirement of the user on the tank liner, and at this time, the refrigeration device is controlled to enter the refrigeration mode to perform the circulating refrigeration of the refrigeration system, so as to ensure the refrigeration effect of the refrigeration device.

Meanwhile, when the refrigeration equipment runs in a refrigeration mode, the evaporator can continuously exchange heat with the tank container in order to ensure that the tank container is at the refrigeration temperature set by a user. The compressor of the refrigerating system is reasonably controlled to work intermittently according to the obtained first temperature around the evaporator, so that the circulating refrigeration of the refrigerating system can be carried out, the refrigeration effect of the refrigerating equipment is ensured, the long-time work of the compressor can be avoided, the possibility of useless work of the compressor is reduced, the energy consumption of the refrigerating equipment is reduced, and the energy utilization rate is improved. Meanwhile, recording the accumulated operation parameters of the refrigeration equipment, and reflecting the frosting degree of the evaporator through the accumulated operation parameters. Under the condition that the accumulated operation parameter of the refrigeration equipment is greater than the corresponding preset operation parameter, the refrigeration system runs for a long time, and severe frosting or icing phenomena may occur on the evaporator, so that the heat exchange efficiency is not benefited. At this time, the refrigeration apparatus is controlled to be switched from the cooling mode to the defrosting mode to melt a frost layer or ice layer on the evaporator. Therefore, defrosting can be controlled according to the defrosting condition of the evaporator, the refrigerating equipment cannot be defrosted frequently under the condition that the defrosting amount of the refrigerating equipment is less when the refrigerating equipment is used frequently, energy consumption is reduced, and the defrosting process can be entered quickly in time when the refrigerating equipment is used frequently and the defrosting amount is large, so that the condition that defrosting is not timely is avoided, the heat exchange effect of the evaporator is improved, and the freshness of articles or food stored in the refrigerating equipment is convenient to keep.

Wherein, the accumulated operation parameter comprises the accumulated operation times and/or the accumulated operation duration of the compressor. When the compressor is in the running state, the accumulated running time is continuously accumulated until the refrigeration equipment enters a defrosting mode. Similarly, considering that the variation of the operation time of the compressor per time is small during the intermittent operation of the compressor under the condition that the refrigerating temperature is not changed, the accumulated operation time of the compressor is reflected by the accumulated operation times. Specifically, the accumulated operation times are accumulated once every time the compressor is started. Therefore, the periodical automatic defrosting of the evaporator is realized through the accumulated operation parameters, the accuracy of triggering the defrosting mode is ensured, and the condition that the heat exchange efficiency of the evaporator is low due to untimely defrosting and too frequent defrosting is effectively avoided. The preset operation parameters can be reasonably set according to the defrosting time of the refrigeration equipment, so that the problem of overlong single defrosting time is avoided. The first temperature threshold is related to the temperature in the box container, and the equipment can be reasonable according to the refrigerating temperature of the box container set by a user. For example, the refrigerating temperature of the refrigerating chamber is 1 ℃ to 5 ℃, and the corresponding first temperature threshold value can be 2 ℃ to 10 ℃. Thus, the food can be kept fresh without freezing injury, and the food can be filled with some articles or foods such as vegetables, fruits, beer, beverages, dry goods, masks and the like.

It should be noted that, in the defrosting mode, even if the first temperature is greater than or equal to the first temperature threshold, the refrigeration cycle of the refrigeration system is not started, so as to ensure that the evaporator cannot perform heat exchange before the defrosting requirement is met, and thus, the defrosting effect and the refrigeration effect are both considered.

Example 9:

as shown in fig. 6, according to an embodiment of the present invention, there is provided a control method for a refrigeration apparatus, including:

step 402, acquiring a first temperature acquired by a sensor;

step 404, whether the first temperature is greater than or equal to a first temperature threshold value, if yes, step 406 is carried out, and if not, step 402 is carried out;

step 406, controlling the refrigeration equipment to enter a refrigeration mode;

step 408, whether the first temperature is greater than or equal to a third temperature threshold, if yes, go to step 410, if no, go to step 412;

step 410, controlling the compressor to operate, recording accumulated operation parameters, and entering step 416;

step 412, whether the first temperature is less than or equal to the fourth temperature threshold, if yes, go to step 414, if no, go to step 410;

wherein the third temperature threshold is greater than the fourth temperature threshold.

Step 414, controlling the compressor to stop running, and entering step 402;

step 416, judging whether the accumulated operation parameter is greater than a preset operation parameter, if so, entering step 418, and if not, entering step 410;

step 418, controlling the refrigeration equipment to exit the refrigeration mode and enter a defrosting mode;

step 420, acquiring a first temperature acquired by a sensor;

in step 422, whether the first temperature is greater than or equal to the second temperature threshold value is determined, if yes, step 424 is performed, and if not, step 420 is performed.

Step 424, controlling the refrigeration equipment to exit the defrosting mode, and initializing the accumulated operation parameters.

In this embodiment, after the refrigeration device enters the refrigeration mode, when the controller detects that the first temperature is greater than or equal to the third temperature threshold, which indicates that the temperature near the evaporator is significantly raised by the heat dissipated by the tank liner after the tank liner exchanges heat with the evaporator, that is, the temperature in the tank liner is high and cannot meet the refrigeration temperature set by the refrigeration device, the controller controls the compressor to start operating, so as to promote the circulation of the refrigerant, and the tank liner is refrigerated by the new low-temperature refrigerant in the evaporator. When the controller detects that the first temperature is less than or equal to the fourth temperature threshold, the evaporator is still at a lower temperature after the heat exchange between the tank container and the evaporator is realized, and the temperature in the tank container can be maintained to be at the refrigeration temperature set by the refrigeration equipment within a period of time, the controller controls the compressor to stop running so as to reduce the energy consumption of the compressor and be beneficial to prolonging the service life of the refrigeration system.

It can be understood that when the controller detects that the first temperature is greater than the fourth temperature threshold and less than the third temperature threshold, the current operating state of the compressor is maintained, and the current operating state of the compressor may be an on state or an off state, that is, the compressor is started when the first temperature is greater than or equal to the third temperature threshold, and the compressor is not turned off until the first temperature is less than or equal to the fourth temperature threshold, and the compressor is restarted when the first temperature is again greater than or equal to the third temperature threshold. For example, fig. 6 shows the steps of the control method when the current operating state of the compressor is the on state when the first temperature is greater than the fourth temperature threshold and less than the third temperature threshold.

And the third temperature threshold is greater than the fourth temperature threshold, and the third temperature threshold and the fourth temperature threshold are related to the set refrigerating temperature of the tank container by the user.

Further, when the refrigeration equipment operates in the defrosting mode, the compressor of the refrigeration system is controlled to stop operating, that is, the refrigeration system stops the refrigeration cycle. At the moment, the frost layer or the ice layer on the evaporator is utilized to exchange heat with the tank liner, so that the frost layer or the ice layer is slowly melted by the heat emitted by the tank liner. Therefore, an additional defrosting device (such as a heater) is not required to be arranged in the refrigeration equipment, the internal space of the refrigeration equipment is saved, the cost of the whole refrigeration equipment is reduced, meanwhile, the defrosting device is not required to be heated, so that the energy consumption of the refrigeration equipment is reduced, and in addition, the defect of high local temperature caused by the defrosting device is avoided, so that the potential safety hazard of the refrigeration equipment adopting the flammable refrigerant is eliminated.

It should be noted that, under the condition that the refrigeration equipment is the air-cooled refrigerator, the compressor of the refrigeration system can still keep the fan running continuously although the compressor stops running, so as to accelerate the air flow, thereby accelerating the heat exchange, shortening the defrosting time, being beneficial to melting a frost layer, and guiding the cold air near the evaporator into the refrigerator, reducing the temperature rise of the tank liner, improving the utilization rate of cold energy, improving the temperature improvement efficiency in the defrosting process, having high defrosting efficiency, saving energy and protecting environment.

Example 10:

as shown in fig. 7, according to an embodiment of the present invention, there is provided a control method for a refrigeration apparatus, including:

step 502, acquiring a first temperature acquired by a sensor;

step 504, whether the first temperature is greater than or equal to a first temperature threshold value, if yes, go to step 506, and if not, go to step 502;

step 506, controlling the refrigeration equipment to enter a refrigeration mode;

step 508, whether the first temperature is greater than or equal to a third temperature threshold, if yes, go to step 510, if no, go to step 512;

step 510, controlling the compressor to operate, and recording accumulated operation parameters;

step 512, whether the first temperature is less than or equal to the fourth temperature threshold value, if yes, go to step 514, if no, go to step 510;

Step 514, controlling the compressor to stop running, and entering step 502;

step 516, judging whether the accumulated operation parameters are larger than preset operation parameters, if so, entering step 518, and if not, entering step 510;

step 518, controlling the refrigeration equipment to exit the refrigeration mode and enter a defrosting mode;

step 520, controlling a heater of the refrigeration equipment to heat the evaporator, and acquiring a first temperature acquired by a sensor;

step 522, whether the first temperature is greater than or equal to the second temperature threshold, if yes, go to step 524, if no, go to step 520;

And step 524, controlling the refrigeration equipment to exit the defrosting mode, controlling the heater to stop heating, and initializing the accumulative running parameters.

In this embodiment, when refrigeration plant operates in the mode of changing frost, usable heater heating evaporator to accelerate the frost on evaporator surface or the speed of melting of ice, make the evaporator can resume efficient heat transfer state fast, shorten the time of changing frost, be favorable to promoting the efficiency of changing frost, avoided the condition that the evaporator heat exchange efficiency is low that the frost untimely leads to, and then guarantee refrigeration plant's refrigerating output, be convenient for the fresh-keeping of the interior article of refrigeration plant or food.

Example 11:

as shown in fig. 8, according to an embodiment of the present invention, there is provided a control method for a refrigeration apparatus, including:

step 602, acquiring a second temperature acquired by a refrigeration sensor;

step 604, adjusting the operation mode of the refrigeration equipment according to the second temperature;

the operation mode comprises a cooling mode and a defrosting mode.

And 606, under the condition that the refrigeration equipment runs in the refrigeration mode, adjusting the opening degree of the first outlet of the throttle valve of the refrigeration system according to the second temperature.

In the embodiment, the second temperature around the refrigeration evaporator collected by the refrigeration sensor is firstly obtained, the refrigeration equipment is controlled to execute the refrigeration mode or the defrosting mode according to the second temperature, and on the basis of improving the standardization rate and the manufacturing efficiency of the refrigeration equipment, the situation that an independent temperature sensor is arranged in the refrigerating chamber of the refrigeration equipment is avoided, so that the manufacturing cost of the refrigeration equipment is saved. Meanwhile, under the condition that the refrigeration equipment is in a refrigeration mode, the opening degree of the first outlet of the throttle valve is controlled according to the second temperature, so that the flow of the refrigerant flowing through the refrigeration evaporator can be accurately adjusted, the refrigeration performance of the refrigeration equipment can be accurately adjusted, the refrigerant is more distributed, and the refrigeration effect of the refrigeration equipment is ensured on the basis of saving resource consumption.

Example 12:

as shown in fig. 9, according to an embodiment of the present invention, there is provided a control method for a refrigeration apparatus, including:

step 702, acquiring a third temperature acquired by a freezing sensor;

step 704, adjusting the operation mode of the refrigeration equipment according to the third temperature;

the operation mode comprises a cooling mode and a defrosting mode.

And 706, under the condition that the refrigeration equipment runs in the refrigeration mode, adjusting the opening degree of the second outlet of the throttle valve of the refrigeration system according to the third temperature.

In the embodiment, the third temperature around the freezing evaporator collected by the freezing sensor is firstly obtained, the refrigeration equipment is controlled to execute the refrigeration mode or the defrosting mode according to the third temperature, and on the basis of improving the standardization rate and the manufacturing efficiency of the refrigeration equipment, the situation that an independent temperature sensor is arranged in the freezing chamber of the refrigeration equipment is avoided, so that the manufacturing cost of the refrigeration equipment is saved. Meanwhile, under the condition that the refrigeration equipment is in a refrigeration mode, the opening degree of the second outlet of the throttle valve is controlled according to the third temperature, so that the flow of the refrigerant flowing through the refrigeration evaporator can be accurately adjusted, the refrigeration performance of the refrigeration equipment can be accurately adjusted, the refrigerant is more distributed, and the refrigeration effect of the refrigeration equipment is ensured on the basis of saving resource consumption.

Example 14:

as shown in fig. 10, according to an embodiment of the present invention, there is provided a control method of a refrigerator, including:

step 802, electrifying the refrigerator to work;

step 804, judging whether the temperature of the sensor is higher than Tk1, if so, entering step 806, and if not, entering step 802;

step 806, the compressor is operated;

step 808, determining whether the sensor temperature is lower than Tt, if so, entering step 810, otherwise, entering step 812;

step 810, stopping the compressor;

step 812, judging whether the accumulated running times of the compressor is greater than or equal to n, if so, entering step 814, and if not, entering step 802;

step 814, judging whether the temperature of the sensor is higher than Tk2, if so, entering step 816, otherwise, entering step 810;

and step 816, clearing the accumulated running times of the compressor.

In this embodiment, as shown in fig. 1, an evaporation tube, a tank bladder, an evaporation aluminum plate (evaporation plate), and a sensor. Wherein, evaporating pipe and evaporation aluminum plate paste together, and evaporation aluminum plate and case courage paste together, and the sensor is fixed on evaporation aluminum plate. The temperature in the inner container of the direct-cooling refrigerator and the defrosting of the evaporator are controlled by one sensor at the same time. Specifically, the refrigerator is powered on, when the temperature of the sensor (first temperature) is higher than the refrigerating set refrigerating temperature Tk1 (third temperature threshold), the compressor starts to operate, and the refrigerator starts to refrigerate; when the temperature of the sensor is lower than the set stop point temperature Tt, the compressor stops refrigerating; when the compressor continuously and accumulatively operates for a certain number of times n (preset operation parameters) (n is more than or equal to 1 and is an integer), the compressor stops refrigerating, a frost layer on the refrigerating evaporator begins to slowly melt, when the temperature of a sensor on the refrigerating evaporator is higher than Tk2 (a second temperature threshold) (Tk2 is more than Tk1), the working number of the compressor is cleared, and the compressor starts to operate because the temperature of the sensor is higher than Tk1, the refrigerator starts refrigerating and enters a new round of refrigerating circulation. Through the application of this scheme, utilize same sensor can control the incasement temperature, can solve the evaporimeter problem of defrosting again, promote the standardization rate of product, promote product manufacturing efficiency, it is with low costs.

Example 15:

as shown in fig. 11, according to an embodiment of the present invention, there is provided a control method of a refrigerator, including:

step 902, powering on the refrigerator for working;

step 904, judging whether the temperature of the sensor is higher than Tk1, if so, entering step 906, otherwise, entering step 902;

step 906, operating the compressor, and timing and accumulating the operating time;

step 908, judging whether the sensor temperature is lower than Tt, if so, entering step 910, otherwise, entering step 912;

step 910, the compressor is stopped;

step 912, judging whether the accumulated running time T of the compressor is greater than or equal to T1, if so, entering step 914, and if not, entering step 902;

step 914, the compressor is stopped, and the defrosting heater works;

step 916, determine whether the sensor temperature is higher than Tk2, if yes, go to step 918, otherwise go to step 914;

and 918, stopping the defrosting heater, and clearing the accumulated running time of the compressor.

In this embodiment, as shown in fig. 2, an evaporation tube, a tank bladder, an evaporation aluminum plate (evaporation plate), a defrosting heater, and a sensor. Wherein, evaporating pipe and evaporation aluminum plate paste together, and evaporation aluminum plate and case courage paste together, and the sensor is fixed on evaporation aluminum plate, and the defrosting heater pastes and applies on evaporation aluminum plate. The temperature in the inner container of the direct-cooling refrigerator and the defrosting of the evaporator are controlled by one sensor at the same time. Specifically, the refrigerator is powered on to operate, when the temperature (first temperature) of the sensor is higher than the refrigerating set refrigerating temperature Tk1 (third temperature threshold), the value range of Tk1 is 2-10 ℃, the compressor starts to operate, and the refrigerator starts to refrigerate. When the temperature of the sensor is lower than the set shutdown temperature Tt, the value range of the Tt is 0-8 ℃, and the compressor stops refrigerating. When the accumulated running time T of the compressor is more than or equal to a preset running period (preset running parameter) T1 (T1 is less than or equal to 96h), the compressor stops refrigerating, the frost layer on the refrigerating evaporator begins to melt slowly, and the heater heats the frost layer. When the temperature of the sensor on the refrigerating evaporator is higher than Tk2 (a second temperature threshold) (Tk2 is more than Tk1), at the moment, the heater stops heating, the accumulated working time of the compressor is cleared, and the compressor starts working because the temperature of the sensor is higher than Tk1, the refrigerator starts refrigerating and enters a new round of refrigerating circulation. Through the application of this scheme, utilize same sensor can control the incasement temperature, can solve the evaporimeter problem of defrosting again, promote the standardization rate of product, promote product manufacturing efficiency, it is with low costs.

Example 14:

as shown in fig. 12, according to an embodiment of the third aspect of the present invention, there is provided a control device 1000 for a refrigeration apparatus, including: an acquisition module 1002 and a control module 1004.

In detail, the obtaining module 1002 is configured to obtain a first temperature collected by a sensor. The control module 1004 is configured to adjust an operating mode of the refrigeration appliance based on the first temperature. The operation mode comprises a cooling mode and a defrosting mode.

Further, the control module 1004 is further configured to control the refrigeration apparatus to enter the refrigeration mode based on the first temperature being greater than or equal to the first temperature threshold; controlling the refrigeration equipment to exit from the refrigeration mode and enter into a defrosting mode based on the fact that the accumulated operation parameter of the refrigeration equipment in the refrigeration mode is larger than the preset operation parameter; in the defrosting mode operation process, controlling the refrigeration equipment to exit the defrosting mode based on the fact that the first temperature is greater than or equal to the second temperature threshold; the control device 1000 further includes: and an updating module (not shown in the figure) for initializing the accumulated operating parameter, wherein the second temperature threshold is greater than the first temperature threshold.

Further, the control module 1004 is further configured to control the compressor of the refrigeration system to operate intermittently according to the first temperature during the operation of the refrigeration mode; the control device 1000 further includes: and the recording module (not shown in the figure) is used for recording the accumulated operation parameters, wherein the accumulated operation parameters comprise the accumulated operation times and/or the accumulated operation time of the compressor.

Further, the control module 1004 is further configured to control the compressor to operate based on the first temperature being greater than or equal to a third temperature threshold; and controlling the compressor to stop running based on the first temperature being less than or equal to a fourth temperature threshold, wherein the third temperature threshold is greater than the fourth temperature threshold.

Further, the control module 1004 is further configured to control the compressor of the refrigeration system to stop operating during the defrosting mode.

Further, the control module 1004 is further configured to control a heater of the refrigeration apparatus to heat the evaporator during the defrosting mode; and after the refrigeration equipment is controlled to exit the defrosting mode, the control module is also used for controlling the heater to stop heating.

Furthermore, the evaporator comprises a refrigeration evaporator and/or a freezing evaporator, the sensor comprises a refrigeration sensor and/or a freezing sensor, the refrigeration system comprises a throttle valve, and a first outlet and a second outlet of the throttle valve are respectively connected with the refrigeration evaporator and the freezing evaporator; the control module 1004 is further used for adjusting the opening degree of the first outlet of the throttle valve according to the second temperature acquired by the refrigeration sensor; and/or adjusting the opening degree of the second outlet of the throttle valve according to the third temperature acquired by the freezing sensor.

In this embodiment, the steps of the control method in any of the above embodiments are implemented when each module of the control device 1000 executes its respective function, and therefore, the control device 1000 also includes all the beneficial effects of the control method in any of the above embodiments, which are not described herein again.

The control device in this embodiment may be a device, or may be a component, an integrated circuit, or a chip in a terminal. The device can be mobile electronic equipment or non-mobile electronic equipment. By way of example, the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palm top computer, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), and the like, and the non-mobile electronic device may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine, a self-service machine, and the like, and the embodiments of the present application are not particularly limited.

Example 15:

according to an embodiment of the fourth aspect of the present invention, a readable storage medium is proposed, on which a program or instructions are stored, which when executed by a processor performs the control method proposed by the embodiment of the second aspect. Therefore, the readable storage medium has all the advantages of the control method provided in the embodiment of the second aspect, and redundant description is omitted to avoid repetition.

In the present invention, the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly and include, for example, fixed connections, detachable connections, or integral connections; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A refrigeration apparatus, comprising:

a box liner;

the refrigeration system comprises an evaporator, and the evaporator is arranged on one side of the box liner;

the sensor is arranged on one side of the tank liner facing the evaporator or the evaporator;

a controller electrically connected with the sensor, the controller being configured to adjust an operation mode of the refrigeration equipment according to the first temperature collected by the sensor,

wherein the operation mode includes a cooling mode and a defrosting mode.

2. The refrigeration appliance according to claim 1, further comprising:

the heater is arranged on one side of the tank container facing the evaporator or the evaporator and is electrically connected with the controller.

3. The refrigeration apparatus as set forth in claim 1 wherein said evaporator comprises:

an evaporation tube;

the evaporation plate is connected with the box liner, and the evaporation tube is arranged on the evaporation plate;

in a case where the sensor is provided on the evaporator, the sensor is mounted on the evaporation plate.

4. The refrigeration apparatus as recited in any one of claims 1 to 3 wherein the refrigeration system further comprises:

a compressor, an inlet of the compressor being connected to an outlet of the evaporator;

the inlet of the condenser is connected with the outlet of the compressor, and the outlet of the condenser is connected with the inlet of the evaporator;

a throttle valve connected between an outlet of the condenser and an inlet of the evaporator;

the controller is electrically connected to the compressor and the throttle valve, respectively.

5. The refrigeration appliance according to claim 4,

the box liner comprises a refrigerating chamber;

the evaporator comprises a refrigeration evaporator, and the refrigeration evaporator is connected with a first outlet of the throttling valve;

the sensor comprises a refrigeration sensor;

the controller is also used for adjusting the opening degree of the first outlet according to the second temperature acquired by the refrigeration sensor.

6. The refrigeration appliance according to claim 4,

the box liner comprises a freezing chamber;

the evaporator comprises a freezing evaporator, and the freezing evaporator is connected with the second outlet of the throttling valve;

the sensor comprises a freeze sensor;

the controller is also used for adjusting the opening degree of the second outlet according to the third temperature collected by the freezing sensor.

7. A control method for refrigeration equipment is characterized in that the refrigeration equipment comprises a tank container, a refrigeration system and a sensor, the refrigeration system comprises an evaporator, the sensor is arranged on one side of the tank container facing the evaporator or arranged at the evaporator, and the control method comprises the following steps:

acquiring a first temperature acquired by the sensor;

adjusting the operation mode of the refrigeration equipment according to the first temperature,

wherein the operation mode includes a cooling mode and a defrosting mode.

8. The control method of claim 7, wherein the adjusting the operating mode of the refrigeration appliance based on the first temperature comprises:

controlling the refrigeration equipment to enter the refrigeration mode based on the first temperature being greater than or equal to a first temperature threshold;

controlling the refrigeration equipment to exit the refrigeration mode and enter the defrosting mode based on the fact that the accumulated operation parameter of the refrigeration equipment in the refrigeration mode is larger than the preset operation parameter;

controlling the refrigeration equipment to exit the defrosting mode and initialize the accumulated operation parameters based on the first temperature being greater than or equal to a second temperature threshold in the defrosting mode,

9. The control method according to claim 8, characterized by further comprising:

controlling the compressor of the refrigeration system to work intermittently according to the first temperature and recording the accumulated operation parameters in the process of operating the refrigeration mode,

wherein the accumulated operation parameter includes an accumulated operation number and/or an accumulated operation time period of the compressor.

10. The control method according to claim 9, wherein said controlling the compressor to operate intermittently according to the first temperature includes:

controlling the compressor to operate based on the first temperature being greater than or equal to a third temperature threshold;

controlling the compressor to stop operating based on the first temperature being less than or equal to a fourth temperature threshold,

11. The control method according to claim 8, characterized by further comprising:

and controlling a compressor of the refrigeration system to stop running during the defrosting mode.

12. The control method according to claim 8, characterized by further comprising:

controlling a heater of the refrigeration apparatus to heat the evaporator during the defrosting mode;

the controlling the refrigeration equipment to exit the defrosting mode comprises:

and controlling the heater to stop heating.

13. The control method according to any one of claims 7 to 12, wherein the evaporator comprises a refrigeration evaporator and/or a freeze evaporator, the sensor comprises a refrigeration sensor and/or a freeze sensor, the control method further comprising:

adjusting the opening degree of a first outlet of a throttle valve of the refrigeration system according to the second temperature acquired by the refrigeration sensor; and/or

And adjusting the opening degree of a second outlet of a throttling valve of the refrigerating system according to the third temperature acquired by the freezing sensor.

14. The utility model provides a control device for refrigeration plant, its characterized in that, refrigeration plant includes case courage, refrigerating system and sensor, refrigerating system includes the evaporimeter, the sensor is located case courage orientation one side of evaporimeter or locating evaporimeter department, control device includes:

the acquisition module is used for acquiring a first temperature acquired by the sensor;

a control module for adjusting the operation mode of the refrigeration equipment according to the first temperature,

wherein the operation mode includes a cooling mode and a defrosting mode.

15. A readable storage medium on which a program or instructions are stored, characterized in that the program or instructions, when executed by a processor, perform the control method according to any one of claims 7 to 13.