CN104964504B - Refrigerating equipment and its dewing-proof method and anti-condensation system - Google Patents
Refrigerating equipment and its dewing-proof method and anti-condensation system Download PDFInfo
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- CN104964504B CN104964504B CN201510275164.XA CN201510275164A CN104964504B CN 104964504 B CN104964504 B CN 104964504B CN 201510275164 A CN201510275164 A CN 201510275164A CN 104964504 B CN104964504 B CN 104964504B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/04—Preventing the formation of frost or condensate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/002—Defroster control
- F25D21/004—Control mechanisms
Abstract
The invention provides a kind of refrigerating equipment and its dewing-proof method and anti-condensation system.The dewing-proof method includes：Network connection is established with remote server；The temperature and humidity of refrigerating device external environment is obtained from remote server；The dew-point temperature of refrigerating device external environment is obtained according to the temperature and humidity of refrigerating device external environment；According to the coefficient of heat insulation of the heat insulating member of the temperature of refrigerating device external environment, the temperature of refrigerating device interior and refrigerating equipment, the temperature of acquisition heat insulating member outer surface；Judge whether heat insulating member has condensation risk according to the temperature of dew-point temperature and heat insulating member outer surface；When judging that heat insulating member has condensation risk, anti-condensation processing is carried out.The dewing-proof method of the present invention can obtain the temperature and humidity of refrigerating device external environment from user terminal or remote server, and the Temperature Humidity Sensor for detecting its ambient temperature and humidity is additionally set without refrigerating equipment.
Description
Technical Field
The invention relates to the technical field of refrigeration, in particular to a refrigeration and freezing device, and an anti-condensation method and an anti-condensation system thereof.
Background
Condensation is the phenomenon that when high-temperature and high-humidity gas meets a low-temperature object, the gas is liquefied into liquid on the surface of the low-temperature object when reaching the dew point temperature. When refrigerating and freezing equipment such as a refrigerator and a freezer runs, the temperature in the box body is far lower than the temperature outside the box body, and heat insulation components such as two sides of a box door of the box body, an upper cross beam, a middle cross beam and a door seal are easy to generate condensation on the surface of the heat insulation components due to the direct action of cold air in the box body. In order to prevent condensation, a heating device is generally attached to the inner surface of these heat insulating members, and the surface temperature is raised by an electric heating method. At present, the heating device generally heats according to a fixed period. Because the external environment temperature and the humidity of the refrigeration and freezing equipment are changed at any time, a fixed period mode is adopted, a lot of useless work is inevitably done, and the energy consumption of the refrigeration and freezing equipment is undoubtedly increased.
Disclosure of Invention
An object of the present invention is to overcome at least one of the drawbacks of the prior art and to provide a method for preventing condensation in a refrigeration and freezing apparatus, which can automatically determine whether a heat insulation component of the refrigeration and freezing apparatus is in danger of condensation according to the temperature and humidity of the external environment of the refrigeration and freezing apparatus and the temperature inside the refrigeration and freezing apparatus, thereby more accurately preventing the heat insulation component from generating condensation and minimizing additional energy consumption.
It is another object of the present invention to provide a refrigeration and freezing apparatus and an anti-condensation system for a refrigeration and freezing apparatus.
According to one aspect of the present invention, there is provided a condensation preventing method for a refrigeration freezer comprising:
establishing a network connection with a remote server;
obtaining a temperature and humidity of an environment external to the refrigeration chiller from the remote server;
obtaining the dew point temperature of the external environment of the refrigeration and freezing equipment according to the temperature and the humidity of the external environment of the refrigeration and freezing equipment;
obtaining the temperature of the outer surface of a heat insulation component of the refrigerating and freezing equipment according to the temperature of the external environment of the refrigerating and freezing equipment, the temperature of the interior of the refrigerating and freezing equipment and the heat insulation coefficient of the heat insulation component of the refrigerating and freezing equipment;
judging whether the heat insulation component has a condensation risk or not according to the dew point temperature and the temperature of the outer surface of the heat insulation component;
and when the heat insulation component is judged to have the condensation risk, carrying out condensation prevention treatment.
Optionally, the temperature of the outer surface of the thermal insulation member is obtained by the following formula:
wherein, T f Indicating the temperature, T, of the outer surface of the insulating member 1 Indicating the temperature, T, of the environment outside the refrigerator-freezer 2 Representing the temperature inside the refrigerating and freezing apparatus, h 1 Represents a coefficient of thermal insulation h between the air inside the refrigerating and freezing equipment and the inner surface of the thermal insulation component 2 Represents a thermal insulation coefficient between air in an environment outside the refrigerator-freezer and an outer surface of the thermal insulation member, δ represents a thickness of the thermal insulation member, and λ represents a thermal insulation coefficient of the thermal insulation member.
Optionally, obtaining the dew point temperature of the environment external to the refrigerator freezer from the temperature and humidity of the environment external to the refrigerator freezer comprises:
and searching the dew point temperature corresponding to the temperature and the humidity of the environment outside the refrigerating and freezing equipment in the psychrometric chart so as to obtain the dew point temperature of the environment outside the refrigerating and freezing equipment.
Optionally, the determining whether the heat insulation component has the condensation risk according to the dew point temperature and the temperature of the outer surface of the heat insulation component includes:
comparing the dew point temperature with the temperature of the outer surface of the heat insulation component;
and if the dew point temperature is greater than the temperature of the outer surface of the heat insulation component, judging that the heat insulation component has a condensation risk.
Optionally, the anti-condensation treatment comprises:
activating a heating device on the insulation component to raise the temperature of the outer surface of the insulation component to the dew point temperature.
Optionally, the anti-condensation treatment further comprises:
and according to the difference between the dew point temperature and the temperature of the outer surface of the heat insulation component, enabling the heating device to heat the heat insulation component with corresponding heating power.
Optionally, the anti-condensation method further comprises, in the anti-condensation treatment:
maintaining the temperature of the outer surface of the insulation member at or above the dew point temperature by a temperature differential.
Optionally, the remote server stores information of a binding relationship between the refrigeration and freezing device and a user terminal;
the remote server obtains the temperature and humidity of the environment outside the refrigeration and freezing equipment from the user terminal through network connection.
Optionally, a WIFI module is arranged in the refrigeration and freezing device, and the refrigeration and freezing device is connected with the remote server through the WIFI module via a network.
Optionally, the obtaining of the temperature and the humidity of the environment outside the refrigeration and freezing device from the remote server is implemented by the refrigeration and freezing device sending a temperature and humidity information request to the remote server at a preset time period.
Optionally, the anti-condensation method further comprises, before obtaining the temperature of the outer surface of the thermal insulation member:
the temperature inside the refrigeration and freezing equipment is collected or obtained according to the gear of the temperature controller of the refrigeration and freezing equipment.
Optionally, the heat insulation component is a heat insulation component located on the front face of the refrigeration and freezing equipment.
According to another aspect of the present invention, there is provided a refrigeration and freezing apparatus comprising:
the network connection module is used for establishing network connection with the remote server;
a data receiving module configured to obtain the temperature and humidity of the environment external to the refrigeration chiller from the remote server;
a processing module configured to obtain a dew point temperature of an environment external to the refrigeration chiller from a temperature and a humidity of the environment external to the refrigeration chiller; obtaining the temperature of the outer surface of the heat insulation component of the refrigerating and freezing equipment according to the temperature of the external environment of the refrigerating and freezing equipment, the temperature of the interior of the refrigerating and freezing equipment and the heat insulation coefficient of the heat insulation component of the refrigerating and freezing equipment;
the judging module is configured to judge whether the heat insulation component has condensation risk according to the dew point temperature and the temperature of the outer surface of the heat insulation component; and
and the anti-condensation device is configured to perform anti-condensation treatment on the heat insulation component when the heat insulation component is in the risk of condensation.
Optionally, the refrigeration freezer further comprises:
an internal temperature acquisition module configured to:
and acquiring the temperature inside the refrigeration and freezing equipment or acquiring the temperature inside the refrigeration and freezing equipment according to the gear of a temperature controller of the refrigeration and freezing equipment.
Optionally, the internal temperature acquisition module comprises a temperature sensor disposed inside the refrigeration and freezing apparatus.
Optionally, the condensation preventing means comprises a heating means on the insulating element configured to raise the temperature of the outer surface of the insulating element to the dew point temperature when the insulating element is at risk of condensation.
Optionally, the heating means comprises a multi-sectional heating wire or a plurality of independently controlled heating wires.
Optionally, the heat insulation component is a heat insulation component located on the front face of the refrigeration and freezing equipment.
Optionally, the refrigeration freezer further comprises:
a data request module configured to send a temperature and humidity information request to the remote server at a preset time period to obtain the temperature and humidity of the environment external to the refrigeration and freezing apparatus from the remote server.
Optionally, the remote server stores information of a binding relationship between the refrigeration and freezing device and a user terminal;
the remote server obtains the temperature and humidity of the environment external to the refrigeration and freezing apparatus from the user terminal via a network connection.
According to another aspect of the invention, an anti-condensation system for a refrigeration and freezing device is provided, which comprises a remote server, a user terminal and any refrigeration and freezing device, wherein the refrigeration and freezing device comprises a remote server, a user terminal and a control unit
The remote server is respectively connected with the user terminal and the refrigeration and freezing equipment through networks and is configured to acquire the temperature and the humidity of the external environment of the refrigeration and freezing equipment from the user terminal;
the refrigerated freezer is configured to obtain the temperature and humidity of the environment external to the refrigerated freezer from the remote server.
Optionally, the refrigeration and freezing apparatus is further configured to send a temperature and humidity information request to the remote server for a preset time period;
the remote server is further configured to: storing the binding relationship information between the user terminal and the refrigeration and freezing equipment, and forwarding a temperature and humidity information request sent by the refrigeration and freezing equipment to the user terminal;
the user terminal is configured to: and sending the temperature and the humidity of the external environment of the refrigerating and freezing equipment to the remote server according to the temperature and humidity information request.
In the prior art, an intelligent household appliance usually receives a control instruction sent by a user terminal or a remote server and executes certain operation according to the control instruction; and it is not thought that data information is obtained from a user terminal or a remote server, and the intelligent household appliance itself controls its operation according to the obtained data information. In the invention, the network connection system of the existing intelligent refrigeration and freezing equipment can be fully utilized to obtain the temperature and the humidity of the external environment of the refrigeration and freezing equipment from the user terminal or the remote server, and further the dew point temperature of the external environment of the refrigeration and freezing equipment is obtained according to the temperature and the humidity so as to further judge whether to perform anti-condensation treatment on the refrigeration and freezing equipment. The condensation preventing method can acquire the temperature and the humidity of the external environment of the refrigerating and freezing equipment from the user terminal or the remote server, does not need to additionally arrange a temperature and humidity sensor for detecting the temperature and the humidity of the environment of the refrigerating and freezing equipment, and can be used in intelligent refrigerating and freezing equipment without the temperature and humidity sensor for detecting the temperature and the humidity of the external environment.
Furthermore, the condensation preventing method can calculate the temperature of the outer surface of the heat insulation component according to the temperature of the external environment of the refrigerating and freezing equipment, the temperature of the interior of the refrigerating and freezing equipment and the heat insulation coefficient of the heat insulation component.
The anti-condensation method for the refrigeration and freezing equipment can determine whether anti-condensation treatment is needed or not according to the dew point temperature of the external environment of the refrigeration and freezing equipment and the outer surface temperature of the heat insulation component, so that the heat insulation component is intelligently and effectively prevented from generating condensation. Compared with the mode that the heating device in the prior art carries out heating according to a fixed period, the invention not only saves energy consumption, but also can avoid the adverse effect on the refrigeration performance of the refrigeration and freezing equipment caused by unnecessary heating of the heat insulation part.
Further, after the anti-condensation treatment is carried out, when the temperature of the outer surface of the heat insulation component is increased to the dew point temperature, the temperature of the outer surface of the heat insulation component is kept at the dew point temperature or higher than the dew point temperature by a temperature difference until at least one value of the temperature and the humidity of the external environment of the refrigeration and freezing equipment and the temperature of the internal environment is changed, and whether the heat insulation component has the risk of condensation or not is judged according to the recalculated dew point temperature and the temperature of the outer surface of the heat insulation component. Thereby effectively preventing the heat insulating member from generating condensation.
In addition, the condensation preventing method can enable the heating device to heat the heat insulation component with corresponding heating power according to the difference between the dew point temperature and the temperature of the outer surface of the heat insulation component. The condensation preventing method can prevent the heat insulation component from being overheated when the difference between the dew point temperature and the temperature of the outer surface of the heat insulation component is small; and when the difference between the dew point temperature and the outer surface temperature of the heat insulation component is large, the heat insulation component is heated with large power, so that the anti-condensation treatment is rapidly completed.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily to scale. In the drawings:
fig. 1 is a schematic flow diagram of a condensation prevention method for a refrigeration chiller according to one embodiment of the present invention;
fig. 2 is a schematic flow diagram of a condensation preventing method for a refrigeration and freezing apparatus according to another embodiment of the present invention.
Fig. 3 is a schematic block diagram of a refrigeration-freezing apparatus according to an embodiment of the present invention;
fig. 4 is a schematic block diagram of an anti-condensation system for a refrigeration and freezing apparatus according to an embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic flow diagram of a condensation prevention method for a refrigeration and freezing apparatus according to an embodiment of the present invention. As shown in fig. 1, the method includes at least the following steps S102 to S112.
Step S102, establishing network connection with a remote server.
Step S104, acquiring the temperature and the humidity of the external environment of the refrigerating and freezing equipment from the remote server.
And step S106, obtaining the dew point temperature of the external environment of the refrigeration and freezing equipment according to the temperature and the humidity of the external environment of the refrigeration and freezing equipment.
And step S108, obtaining the temperature of the outer surface of the heat insulation component according to the temperature of the external environment of the refrigerating and freezing equipment, the temperature of the interior of the refrigerating and freezing equipment and the heat insulation coefficient of the heat insulation component of the refrigerating and freezing equipment.
And step S110, judging whether the heat insulation component has condensation risk or not according to the dew point temperature and the temperature of the outer surface of the heat insulation component. If the heat insulation component is judged to be at the risk of condensation, executing step S112; otherwise, the condensation prevention treatment is not carried out. In some embodiments, the temperature and humidity of the external environment are obtained from the remote server at preset time periods. When it is determined in step S110 that the anti-condensation process is not performed, steps S104 to S110 may be re-performed after a preset time period has elapsed.
In step S112, anti-condensation processing is performed.
Step S106 and step S108 have no specific execution order, and may be executed simultaneously or may not be executed simultaneously.
The condensation preventing method can fully utilize the network connection system of the existing intelligent refrigerating and freezing equipment, obtain the temperature and the humidity of the external environment of the refrigerating and freezing equipment from the user terminal or the remote server, and further obtain the dew point temperature of the external environment of the refrigerating and freezing equipment according to the temperature and the humidity so as to further judge whether to perform condensation preventing treatment on the refrigerating and freezing equipment. The condensation preventing method does not need to additionally arrange a temperature and humidity sensor for detecting the environmental temperature and humidity of the refrigeration and freezing equipment, and can be used in intelligent refrigeration and freezing equipment without the temperature and humidity sensor for detecting the external environmental temperature and humidity.
Further, the anti-condensation method can determine whether anti-condensation treatment is needed according to the dew point temperature of the external environment of the refrigeration and freezing equipment and the outer surface temperature of the heat insulation component, so that condensation of the heat insulation component is intelligently and effectively prevented. Compared with the mode that the heating device in the prior art carries out heating according to a fixed period, the invention not only saves energy consumption, but also can avoid the adverse effect on the refrigeration performance of the refrigeration and freezing equipment caused by unnecessary heating of the heat insulation part.
In some embodiments, after the refrigeration and freezing device establishes the network connection with the remote server in step S102, data transmission between the remote server and the refrigeration and freezing device may be implemented through the established network connection. Particularly, a WIFI module is arranged in the refrigeration and freezing equipment, and the refrigeration and freezing equipment is connected with a remote server through the WIFI module in a network mode.
The temperature and humidity of the environment outside the refrigeration and freezing device mentioned in step S104 are the temperature and humidity of the air outside the refrigeration and freezing device; accordingly, the dew point temperature of the environment outside the refrigeration and freezing device mentioned in step S106 is the dew point temperature of the air outside the refrigeration and freezing device.
In some embodiments, the temperature and humidity of the environment outside the refrigeration chiller in the remote server may be derived from a web search. In some embodiments, the geographical location of the refrigeration chiller may be pre-stored in a remote server, and the remote server may query the network for the temperature and humidity of the geographical location of the refrigeration chiller. For example, the remote server stores the temperature and the humidity of the refrigerating and freezing equipment in a Huaqingjia garden district of the Haisheng district of Beijing city in advance, and the remote server can inquire the temperature and the humidity of the Beijing city in a network as the temperature and the humidity of the external environment of the refrigerating and freezing equipment; or the remote server may query the temperature and humidity of the hai lake district, beijing, over the network as the temperature and humidity of the environment outside the refrigeration chiller.
In some embodiments, the remote server has stored thereon binding relationship information of the refrigeration freezer and the at least one smart device. At least one intelligent device establishes network connection with a remote server through a WIFI module and the like. The remote server may obtain the temperature and humidity of the environment external to the refrigerator freezer from a smart device bound to the refrigerator freezer via a network connection. In a specific embodiment, the intelligent device may be, for example, a user terminal, such as a mobile phone, a tablet computer, or other intelligent electrical appliances capable of detecting temperature and humidity, such as a hail air box, an ink air box, or the like. When the remote server acquires the temperature and the humidity of the external environment of the refrigeration and freezing equipment from the plurality of intelligent equipment, the temperature and the humidity of the external environment of the refrigeration and freezing equipment acquired from the intelligent equipment with the highest priority can be transmitted to the refrigeration and freezing equipment according to the preset priority order. In an alternative embodiment, the remote server also transmits the temperature and humidity of the environment outside the refrigerator freezer, which are obtained first, to the refrigerator freezer in chronological order.
In a preferred embodiment, the user terminal establishes a network connection with a remote server through a home wireless router or data network. The remote server may obtain the temperature and humidity of the environment external to the refrigeration chiller from the user terminal via a network connection. The temperature and humidity of the external environment of the refrigeration and freezing equipment can be obtained by the user terminal through the temperature and humidity sensor carried by the user terminal. The temperature and the humidity of the external environment of the refrigerating and freezing equipment can be obtained from other intelligent equipment such as a Haler air box, an ink air fruit and the like, or the temperature and the humidity of the place where the refrigerating and freezing equipment is located can be searched from a network; or acquiring the temperature and the humidity of the place where the refrigeration and freezing equipment is located from an APP such as ink weather installed on a user terminal. Of course, the possibility of setting or manually entering the temperature and humidity of the environment outside the refrigeration and freezing apparatus by hand is not excluded. The user terminal obtains the temperature and the humidity of the external environment of the refrigeration and freezing equipment and then can send the temperature and the humidity to the remote server.
In some embodiments, the remote server stores information about the binding relationship between the refrigeration and freezing device and a user terminal. The binding of the refrigeration freezer to the user terminal may be done in a number of ways. One of the binding modes is as follows: the method comprises the steps of starting a network access equipment mode of a user terminal, starting the to-be-bound refrigeration and freezing equipment to enter a waiting binding state, establishing network connection between the user terminal and the refrigeration and freezing equipment by utilizing the network access equipment mode after the user terminal searches the refrigeration and freezing equipment, then carrying out binding confirmation of terminal identification information and equipment identification information on the user terminal and the refrigeration and freezing equipment by utilizing the network connection, transmitting the terminal identification information and the equipment identification information to a remote server by the user terminal after the binding confirmation, and registering binding relation information of the user terminal and the refrigeration and freezing equipment in the remote server. The other binding mode is as follows: after a user terminal accesses a network access device (such as a wireless router repeater, a hub, an exchanger or a router) and sends a binding request in a broadcasting mode, wherein the binding request can comprise the name of the accessed network access device, the password of the network access device and the terminal identification information of the user terminal, and after receiving the binding request, the refrigeration and refrigeration device in a to-be-bound state is connected to a specified network access device according to the binding request; after detecting the refrigeration and freezing equipment accessed to the network access equipment, the user terminal is bound with the refrigeration and freezing equipment, after binding, the user terminal can also send the terminal identification information and the equipment identification information of the refrigeration and freezing equipment bound with the terminal identification information to a remote server, and the binding relation information between the user terminal and the refrigeration and freezing equipment is registered in the remote server.
In some embodiments of the present invention, in step S106, the dew point temperature of the environment outside the refrigeration and freezing apparatus may be obtained by a psychrometric chart lookup. The dew point temperature corresponding to the temperature and humidity of the environment outside the refrigeration chiller can be found in the psychrometric chart, and the dew point temperature of the environment outside the refrigeration chiller is also obtained. Specifically, in the psychrometric chart, the temperature value at which the intersection of the dry bulb temperature (which may be approximately equal to the temperature of the environment outside the refrigeration and freezing apparatus) and the moisture content (which may be approximately equal to the humidity of the environment outside the refrigeration and freezing apparatus) is cooled down to saturation is the dew point temperature of the environment outside the refrigeration and freezing apparatus.
In some alternative embodiments of the present invention, in step S106, the dew point temperature of the environment outside the refrigeration and freezing apparatus may also be obtained by calculation through equations (1) and (2):
wherein, gamma (T) 1 RH) is an intermediate variable, and
wherein, T d Indicating the dew point temperature, T, of the environment outside the refrigeration and freezing apparatus 1 Which represents the temperature of the environment outside the refrigerator-freezer, RH represents the relative humidity of the environment outside the refrigerator-freezer, and a and b are constants. Specifically, a can take the value of 17.27; b may take a value of 237.7 ℃.
It should be noted that the humidity mentioned in the present invention is relative humidity, i.e. T 1 Absolute humidity and T of air at temperature 1 Ratio of saturated absolute humidity at temperature. The temperatures mentioned in the examples of the present invention are all in degrees centigrade. When the humidity acquired in step S104 is not the relative humidity and/or the temperature is a non-celsius temperature, it may be converted into the relative humidity and the celsius temperature, respectively.
It will be understood by those skilled in the art that the above equations (1) and (2) are calculated based on the Magnus-tens approximation, which is valid only in the following ranges: 0 deg.C<T 1 < at 60 ℃ and 1%<RH< 100%, and 0 deg.C<T d <50℃。
In further alternative embodiments of the present invention, in step S106, the dew point temperature of the environment outside the refrigeration and freezing apparatus may also be obtained by calculating according to formula (3):
wherein, T d Indicating the dew point temperature, T, of the environment outside the refrigeration and freezing apparatus 1 Representing the temperature of the environment outside the refrigerator-freezer, RH representing the relative humidity of the environment outside the refrigerator-freezer, and RH>, 50 percent. That is, when the relative humidity of the air in the environment outside the refrigerator-freezer is above 50%, the dew point temperature of the air outside the refrigerator-freezer can be calculated by the simple approximation of equation (3).
In some embodiments of the present invention, in step S108, the temperature of the outer surface of the heat insulating member may be obtained by equation (4):
wherein, T f Indicating the temperature, T, of the outer surface of the insulating member 1 Indicating the temperature, T, of the environment outside the refrigerator-freezer 2 Indicating the temperature, h, of the interior of the refrigeration and freezing apparatus 1 Denotes the coefficient of thermal insulation h between the air inside the refrigerating and freezing apparatus and the inner surface of the thermal insulation member 2 The thermal insulation coefficient between the air in the environment outside the refrigerator-freezer and the outer surface of the thermal insulation member is represented by δ, the thickness of the thermal insulation member is represented by λ, and the thermal insulation coefficient of the thermal insulation member is represented by λ.
In step S108, before obtaining the temperature of the outer surface of the thermal insulation component, obtaining the temperature inside the refrigeration and freezing device may be further included. The temperature inside the refrigeration and freezing equipment can be collected by a temperature sensor arranged inside the refrigeration and freezing equipment; or the temperature inside the refrigeration and freezing equipment can be obtained according to the gear of the temperature controller of the refrigeration and freezing equipment.
It should be noted that, in the prior art, the temperature of the environment outside the refrigeration and freezing device is usually directly used as the temperature of the outer surface of the heat insulation component, or the temperature of the outer surface of the heat insulation component is directly detected by using a temperature sensor. However, in reality, the temperature of the environment outside the heat insulating member and the temperature of the outer surface of the heat insulating member are not the same; and the inventors of the present application found that the temperature of the outer surface of the heat insulating member cannot be directly measured by a device, orIt is difficult to accurately obtain the result by device measurement. In the anti-condensation method, the temperature of the outer surface of the heat insulation component is calculated according to the temperature of the external environment of the refrigeration and freezing equipment, the temperature of the interior of the refrigeration and freezing equipment and the heat insulation coefficient of the heat insulation component, so that the temperature of the outer surface of the hot component can be obtained more accurately. In the condensation preventing method of the embodiment of the invention, the temperature T of the external environment of the refrigerating and freezing equipment can be obtained through the remote server 1 The temperature T inside the refrigeration and freezing equipment can be accurately acquired by using a sensor, a thermometer and other devices 2 (ii) a According to T 1 And T 2 Is easy to obtain h 1 And h 2 (ii) a For the thermal insulation member; λ is a constant; δ can be obtained by simple measurement. That is, the temperature of the outer surface of the heat insulation component is obtained in a calculation mode through two simple and easily obtained temperature data, and compared with the prior art that the temperature of the outer surface of the heat insulation component is directly detected through a temperature sensor, the temperature of the outer surface of the heat insulation component obtained through the method is more accurate, and therefore the accuracy of controlling the anti-condensation is improved.
In some embodiments of the present invention, step S110 may include: comparing the dew point temperature with the temperature of the outer surface of the heat insulation component; and if the dew point temperature is higher than the temperature of the outer surface of the heat insulation component, judging that the heat insulation component has a condensation risk. Otherwise, judging that the heat insulation component has no condensation risk, and temporarily not performing condensation prevention treatment.
In some embodiments of the invention, step S112 may include activating a heating device located on the insulation component to raise the temperature of the insulation component outer surface to a dew point temperature. That is, a heating device for uniformly heating the heat insulation component of the refrigeration and freezing equipment is arranged on the heat insulation component, and when the heat insulation component has a condensation risk, the heating device is started to heat the heat insulation component until the temperature of the heat insulation component is raised to the dew point temperature.
In a further embodiment of the present invention, the heating power of the heating device is adjustable, and step S112 may further include causing the heating device to heat the thermal insulation component with a corresponding heating power according to a difference between the dew point temperature and the temperature of the outer surface of the thermal insulation component. Specifically, when the difference between the dew point temperature and the temperature of the outer surface of the heat insulation component is high, for example, the difference is between 2 and 5 ℃, which indicates that the risk of condensation on the heat insulation component is high (or condensation has already formed), the heating device can be enabled to heat the heat insulation component at the maximum heating power; when the difference between the dew point temperature and the temperature of the outer surface of the heat insulation component is general, for example, the difference is between 1 and 2 ℃, the condensation risk of the heat insulation component is general, and the heating device can be used for heating the heat insulation component at medium heating power; when the difference between the dew point temperature and the temperature of the outer surface of the thermal insulation component is low, for example, the difference is between 0 and 1 ℃, the risk of condensation of the thermal insulation component is low, and the heating device can heat the thermal insulation component with the minimum heating power. Therefore, the condensation preventing method can enable the heating device to heat the heat insulation component with corresponding heating power according to the difference between the dew point temperature and the temperature of the outer surface of the heat insulation component. Therefore, when the difference between the dew point temperature and the temperature of the outer surface of the heat insulation component is small, the heat insulation component is prevented from being overheated, and the refrigeration performance of the refrigeration and freezing equipment is prevented from being excessively influenced; and when the difference between the dew point temperature and the outer surface temperature of the heat insulation component is large, the heat insulation component is heated with large power, so that the outer surface temperature of the heat insulation component is quickly raised to the dew point temperature.
In other embodiments of the present invention, step S112 may further include: the temperature of the outer surface of the heat insulating member is maintained at or above the dew point temperature by a temperature difference. The temperature difference may be predetermined, for example, 1 ℃,2 ℃, or 3 ℃.
In the anti-condensation method of the present invention, during the period when the heating device is started to keep the temperature of the outer surface of the heat insulation component at the dew point temperature or higher than the dew point temperature by a temperature difference, the method may return to step S104, re-acquire the temperature and humidity of the external environment of the refrigeration and freezing equipment, re-acquire the temperature of the interior of the refrigeration and freezing equipment, re-calculate the dew point temperature and the temperature of the outer surface of the heat insulation component until at least one of the re-acquired temperature and humidity of the external environment of the refrigeration and freezing equipment and the temperature of the interior changes, and re-determine whether the heat insulation component has a condensation risk, thereby intelligently and effectively preventing the heat insulation component from generating condensation.
In an alternative embodiment, when the heating device is started to keep the temperature of the outer surface of the heat insulation component at the dew point temperature or above the dew point temperature by a temperature difference, the temperature of the interior of the refrigeration and freezing equipment can be only collected again until the temperature of the interior of the refrigeration and freezing equipment obtained again changes, the temperature of the outer surface of the heat insulation component is calculated again, whether the heat insulation component has the condensation risk is judged again, and therefore the heat insulation component is prevented from generating condensation intelligently and effectively.
In the embodiment of the present invention, the heat insulating member on the front surface of the refrigeration and freezing equipment, such as the door body, the upper cross beam between the door body and the top plate, the middle cross beam between the door body and the door body, and the like, is more likely to generate condensation than the heat insulating member on other parts of the refrigeration and freezing equipment.
In some embodiments of the present invention, the obtaining of the temperature and the humidity of the environment outside the refrigeration and freezing apparatus from the remote server is performed by the refrigeration and freezing apparatus sending a temperature and humidity information request to the remote server for a preset time period. In other embodiments, obtaining the temperature and humidity of the environment external to the refrigerator freezer from the remote server is accomplished by the remote server sending the temperature and humidity of the environment external to the refrigerator freezer for a preset period of time.
Fig. 2 is a schematic flow chart of an anti-condensation method according to another embodiment of the present invention. In other embodiments of the present invention, as shown in fig. 2, between step S102 and step S104, the method further includes:
step S103, a temperature and humidity information request is sent to a remote server.
After the remote server receives the temperature and humidity information request sent by the refrigerating and freezing equipment, the remote server acquires the temperature and the humidity of the external environment of the refrigerating and freezing equipment through a network or a user terminal bound with the refrigerating and freezing equipment or other intelligent equipment, and sends the acquired temperature and humidity of the external environment of the refrigerating and freezing equipment to the refrigerating and freezing equipment. In some embodiments, the remote server forwards the received temperature and humidity information request to the user terminal bound to the refrigeration and freezing device, and the user terminal sends the temperature and humidity of the environment outside the refrigeration and freezing device to the remote server according to the temperature and humidity information request.
In the condensation preventing method of the embodiment of the invention, the refrigeration and freezing equipment can send the temperature and humidity information request to the remote server in a preset time period. After the temperature and humidity information request is sent every time, the temperature and the humidity of the external environment of the refrigerating and freezing equipment are obtained from the remote server.
Specifically, in the embodiment shown in fig. 2, when it is determined in step S110 that the heat insulation component has no risk of condensation and no condensation prevention treatment is performed, the process may return to step S103 to step S110, so as to send a temperature and humidity information request to the remote server after a preset time period and determine whether there is a risk of condensation again. The predetermined time period may be 10 minutes, 20 minutes, 30 minutes, or 1 hour, 2 hours, or 5 hours, etc.
After the temperature of the outer surface of the heat insulating member is maintained at the dew point temperature or higher than the dew point temperature by a temperature difference in step S112, the process may return to step S103 to step S110, and the temperature and humidity information request is sent to the remote server again, so as to determine whether the heat insulating member has a risk of condensation again.
In order to accurately obtain the temperature of the outer surface of the heated heat insulating member, the temperature of the inner side of the heat insulating member may be detected in the vicinity of the inner surface of the portion of the heat insulating member where the heating device is provided (the temperature at the other position apart from the heating device does not significantly increase in the temperature in the vicinity of the heating device), and the temperature of the outer surface of the heated heat insulating member may be calculated according to equation (4).
Based on the same inventive concept, embodiments of the present invention also provide a refrigeration and freezing apparatus, which can prevent the heat insulating part of the refrigeration and freezing apparatus from generating condensation using the above-described condensation preventing method. Fig. 3 shows a schematic block diagram of a refrigeration-freezing apparatus 100 according to another embodiment of the present invention. As shown in fig. 3, the refrigerating and freezing apparatus 100 includes: the system comprises a network connection module 110, a data receiving module 120, a processing module 140, a judging module 150 and an anti-condensation device 160.
The network connection module 110 is used to establish a network connection with a remote server. The data receiving module 120 is configured to obtain the temperature and humidity of the environment external to the refrigerator freezer 100 from a remote server. The processing module 140 is configured to obtain a dew point temperature of the environment external to the refrigerator-freezer 100 from the temperature and humidity of the environment external to the refrigerator-freezer 100; and the temperature of the outer surface of the heat insulating member of the refrigerating and freezing apparatus 100 is obtained from the temperature of the environment outside the refrigerating and freezing apparatus 100, the temperature inside the refrigerating and freezing apparatus 100, and the heat insulating coefficient of the heat insulating member of the refrigerating and freezing apparatus 100. The determination module 150 is configured to determine whether the insulation component is at risk of condensation based on the dew point temperature and the temperature of the outer surface of the insulation component. The anti-condensation device 160 is configured to perform an anti-condensation process on the heat insulating member when the heat insulating member is at risk of condensation.
The refrigeration and freezing equipment 100 of the invention can fully utilize the existing network connection system established between the refrigeration and freezing equipment and the remote server, acquire the temperature and the humidity of the external environment of the refrigeration and freezing equipment 100 from the user terminal or the remote server, and further acquire the dew point temperature of the external environment of the refrigeration and freezing equipment 100 according to the temperature and the humidity so as to further judge whether to carry out anti-condensation treatment on the refrigeration and freezing equipment 100. The refrigeration and freezing device 100 does not need to be additionally provided with a temperature and humidity sensor for detecting the environmental temperature and humidity, so that the cost is saved.
Further, the refrigerator-freezer 100 of the present invention can determine whether the anti-condensation process is required according to the dew point temperature of the external environment thereof and the outer surface temperature of the heat insulating member, thereby intelligently and effectively preventing the heat insulating member from generating condensation. Compared with the mode that the heating device in the prior art carries out heating according to a fixed period, the invention not only saves energy consumption, but also can avoid the adverse effect on the refrigerating performance of the refrigeration and freezing equipment 100 caused by unnecessary heating of the heat insulation component.
In some embodiments, the refrigeration chiller 100 may further include a data request module 130 configured to send a temperature and humidity information request to a remote server at a preset time period to obtain the temperature and humidity of the environment external to the refrigeration chiller 100 from the remote server. After receiving the temperature and humidity information request, the remote server may obtain the temperature and humidity of the environment outside the refrigeration and freezing apparatus 100 and send the temperature and humidity to the refrigeration and freezing apparatus 100.
In some embodiments, the network connection module 110, the data receiving module 120, the data requesting module 130, the processing module 140, and the determining module 150 may be integrated into a main control board of the refrigeration and freezing apparatus 100.
In some embodiments, the network connection module 110 may be a WIFI module. The remote server stores the binding relationship information between the refrigerating and freezing device 100 and a user terminal. The remote server may obtain the temperature and humidity of the environment external to the refrigeration chiller from the user terminal via a network connection.
In some embodiments, the refrigerator freezer 100 may further include an interior temperature acquisition module 170 configured to collect the temperature inside the refrigerator freezer 100. The interior temperature acquisition module 170 may include a temperature sensor disposed inside the refrigeration freezer 100. The interior temperature acquisition module 170 may also be configured to acquire the temperature inside the refrigerator-freezer 100 based on the position of the thermostat of the refrigerator-freezer 100. In such an embodiment, the internal temperature obtaining module 170 does not need to include a temperature sensor disposed inside the refrigeration and freezing device 100, but obtains a shift position of the thermostat by electrically connecting with the thermostat of the refrigeration and freezing device 100, so as to obtain the temperature inside the refrigeration and freezing device 100 corresponding to the shift position.
The interior temperature acquisition module 170 is further configured to send the temperature of the interior of the refrigerator-freezer 100 it acquires to the processing module 140. The data receiving module 120 is also configured to send the temperature and humidity of the environment outside the refrigerator freezer 100 obtained from the remote server to the processing module 140. The processing module 140 obtains the dew point temperature and the temperature of the outer surface of the heat insulating member according to the data provided by the internal temperature obtaining module 170 and the data receiving module 120, and transmits them to the judging module 150. When the determining module 150 determines that the heat insulating member has a condensation risk according to the dew point temperature and the temperature of the outer surface of the heat insulating member, a start instruction may be sent to the condensation preventing device 160, so that the condensation preventing device 160 is started.
In some embodiments, the processing module 140 may store a psychrometric chart in advance, or the processing module 140 may be connected to a module or device storing the psychrometric chart, so that the processing module 140 may look up the corresponding dew point temperature in the psychrometric chart according to the temperature and humidity, and thus may obtain the corresponding dew point temperature according to the temperature and humidity of the environment outside the refrigeration and freezing device 100. In other embodiments, the processing module 140 may also store a calculation formula for calculating the dew point temperature according to the temperature and the humidity in advance, so that the processing module 140 may calculate the corresponding dew point temperature according to the temperature and the humidity. The processing module 140 may also store a calculation formula for calculating the outer surface temperature of the heat insulating member from the temperatures inside and outside the heat insulating member, the heat insulating coefficient, and the thickness, so that the processing module 140 may calculate the outer surface temperature of the heat insulating member from the temperatures inside and outside the heat insulating member.
In some embodiments, the anti-condensation device 160 may include a heating device 162 located on the insulation component configured to raise the temperature of the insulation component's outer surface to its dew point temperature when the insulation component is at risk of condensation. When the anti-condensation device 160 receives the start instruction sent by the determination module 150, the heating device 162 is turned on.
The heating device 162 may include a heating wire that is heated by an electric heating method. In particular, the heating device 162 includes a multi-sectional heating wire, which is generally formed by connecting multiple sections of heating wire (with spaces between each section of heating wire) in series. The multi-sectional heating wires may be disposed at different regions of the inner surface of the insulation member to more uniformly heat the insulation member. The heating device 162 may also include a plurality of independently controlled heating wires. In such an embodiment, the heating power of the heating device 162 can be changed by controlling the operation of different numbers of heating wires. Therefore, the refrigerating and freezing apparatus 100 of the present invention can heat the thermal insulation component with the heating device 162 according to the difference between the dew point temperature and the temperature of the outer surface of the thermal insulation component.
It will be appreciated by those skilled in the art that the refrigeration and freezing apparatus 100 according to the present invention may be a refrigerator, freezer, cold storage tank or other apparatus having a refrigeration function.
Based on the same inventive concept, embodiments of the present invention also provide an anti-condensation system for a refrigeration and freezing apparatus 100, which can prevent condensation from being generated in an insulating part of the refrigeration and freezing apparatus 100 using the anti-condensation method described above. As shown in fig. 4, the anti-condensation system 10 of the embodiment of the present invention includes a remote server 200, a user terminal 300, and the above-described refrigerating and freezing device 100 (shown in fig. 3).
The remote server 200 establishes network connections with the user terminal 300 and the refrigerator-freezer 100, respectively, and is configured to acquire the temperature and humidity of the environment outside the refrigerator-freezer 100 from the user terminal 300. The refrigerator freezer 100 is configured to obtain the temperature and humidity of the environment external to the refrigerator freezer 100 from the remote server 200.
In some embodiments, the refrigeration freezer 100 is further configured to send a request for temperature and humidity information to the remote server 200 for a preset period of time. The remote server 200 may also be configured to: the binding relationship information between the user terminal 300 and the refrigeration and freezing equipment 100 is stored, and the temperature and humidity information request sent from the refrigeration and freezing equipment 100 is forwarded to the user terminal 300. The user terminal 300 is configured to transmit the temperature and humidity of the environment outside the refrigerator-freezer 100 to the remote server 200 according to the temperature and humidity information request.
The user terminal 300 may obtain the temperature and humidity of the external environment of the refrigeration and freezing equipment 100 by using the temperature and humidity sensor carried by the user terminal after receiving the temperature and humidity information request forwarded by the remote server 200; or to obtain the temperature and humidity of the environment external to the refrigerator-freezer 100 from other intelligent devices such as a hail air box, ink air fruits, etc.; or searching the temperature and humidity of the place where the refrigerating and freezing equipment 100 is located from the network; or the temperature and humidity of the place where the refrigerating and freezing equipment 100 is located are obtained from APP such as ink weather installed on the user terminal 300. Of course, the possibility of manually setting or manually entering the temperature and humidity of the environment outside the refrigeration freezer 100 is not excluded. The user terminal acquires the temperature and humidity of the environment outside the refrigerating and freezing apparatus 100 and transmits the acquired temperature and humidity to the remote server 200.
Thus, it should be appreciated by those skilled in the art that while various exemplary embodiments of the invention have been shown and described in detail herein, many other variations or modifications which are consistent with the principles of this invention may be determined or derived directly from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (21)
1. A method of preventing condensation for a refrigeration chiller comprising:
establishing a network connection with a remote server;
obtaining the temperature and humidity of the environment external to the refrigeration and freezing apparatus from the remote server;
obtaining the dew point temperature of the external environment of the refrigeration and freezing equipment according to the temperature and the humidity of the external environment of the refrigeration and freezing equipment;
obtaining the temperature of the outer surface of a heat insulation component of the refrigerating and freezing equipment according to the temperature of the external environment of the refrigerating and freezing equipment, the temperature of the interior of the refrigerating and freezing equipment and the heat insulation coefficient of the heat insulation component of the refrigerating and freezing equipment;
judging whether the heat insulation component has a condensation risk or not according to the dew point temperature and the temperature of the outer surface of the heat insulation component;
when the heat insulation component is judged to have the condensation risk, carrying out condensation prevention treatment;
the anti-condensation method obtains the temperature of the outer surface of the heat insulation component through the following formula:
wherein, T f Indicating the temperature, T, of the outer surface of the insulating member 1 Indicating the temperature, T, of the environment outside the refrigerator-freezer 2 Indicating said cold storageTemperature inside the freezing apparatus, h 1 Represents a coefficient of thermal insulation h between the air inside the refrigerating and freezing equipment and the inner surface of the thermal insulation component 2 Represents the thermal insulation coefficient between the air outside the refrigeration and freezing equipment and the outer surface of the thermal insulation component, delta represents the thickness of the thermal insulation component, and lambda represents the thermal insulation coefficient of the thermal insulation component.
2. The anti-condensation method according to claim 1, wherein obtaining the dew point temperature of the environment outside the refrigerator freezer from the temperature and humidity of the environment outside the refrigerator freezer comprises:
and searching the dew point temperature corresponding to the temperature and the humidity of the environment outside the refrigerating and freezing equipment in the psychrometric chart so as to obtain the dew point temperature of the environment outside the refrigerating and freezing equipment.
3. The condensation preventing method according to claim 1, wherein the judging whether the heat insulating member has a condensation risk according to the dew point temperature and the temperature of the outer surface of the heat insulating member comprises:
comparing the dew point temperature with the temperature of the outer surface of the heat insulation component;
and if the dew point temperature is greater than the temperature of the outer surface of the heat insulation component, judging that the heat insulation component has a condensation risk.
4. The anti-condensation method according to claim 3, wherein the anti-condensation treatment comprises:
activating a heating device located on the insulation component to raise the temperature of the insulation component exterior surface to the dew point temperature.
5. The anti-condensation method according to claim 4, wherein the anti-condensation treatment further comprises:
and according to the difference between the dew point temperature and the temperature of the outer surface of the heat insulation component, enabling the heating device to heat the heat insulation component with corresponding heating power.
6. The anti-condensation method according to claim 4, further comprising, at the anti-condensation process:
and keeping the temperature of the outer surface of the heat insulation component at the dew point temperature or higher by a temperature difference.
7. The method of claim 1, wherein the method further comprises removing the solvent from the solution
The remote server stores the binding relation information of the refrigeration and freezing equipment and a user terminal;
the remote server obtains the temperature and humidity of the environment external to the refrigeration and freezing apparatus from the user terminal via a network connection.
8. The method of claim 1, wherein the method further comprises removing the solvent from the solution
The refrigerator-freezer is provided with a WIFI module, and the refrigerator-freezer is connected with the remote server through the WIFI module in a network mode.
9. The method of claim 1, wherein the method further comprises removing the solvent from the solution
The acquisition of the temperature and the humidity of the external environment of the refrigeration and freezing equipment from the remote server is realized by sending a temperature and humidity information request to the remote server by the refrigeration and freezing equipment in a preset time period.
10. The condensation preventing method according to claim 1, further comprising, before obtaining the temperature of the outer surface of the heat insulating member:
the temperature inside the refrigeration and freezing equipment is collected or obtained according to the gear of the temperature controller of the refrigeration and freezing equipment.
11. The method of claim 1, wherein the method further comprises removing the solvent from the solution
The heat insulation component is positioned on the front surface of the refrigerating and freezing equipment.
12. A refrigeration and freezing apparatus comprising:
the network connection module is used for establishing network connection with a remote server;
a data receiving module configured to obtain a temperature and humidity of an environment external to the refrigeration chiller from the remote server;
a processing module configured to obtain a dew point temperature of an environment external to the refrigeration freezer from a temperature and a humidity of the environment external to the refrigeration freezer; obtaining the temperature of the outer surface of the heat insulation component of the refrigerating and freezing equipment according to the temperature of the external environment of the refrigerating and freezing equipment, the temperature of the interior of the refrigerating and freezing equipment and the heat insulation coefficient of the heat insulation component of the refrigerating and freezing equipment;
the judging module is configured to judge whether the heat insulation component has condensation risk according to the dew point temperature and the temperature of the outer surface of the heat insulation component; and
the anti-condensation device is configured to perform anti-condensation treatment on the heat insulation component when the heat insulation component is in a condensation risk; wherein
The processing module obtains the temperature of the outer surface of the heat insulation component according to the following formula:
wherein Tf represents the temperature of the outer surface of the thermal insulation member, T1 represents the temperature of the environment outside the refrigerator freezer, T2 represents the temperature of the interior of the refrigerator freezer, h1 represents the thermal insulation coefficient between the air inside the refrigerator freezer and the inner surface of the thermal insulation member, h2 represents the thermal insulation coefficient between the air outside the refrigerator freezer and the outer surface of the thermal insulation member, δ represents the thickness of the thermal insulation member, and λ represents the thermal insulation coefficient of the thermal insulation member.
13. The refrigeration chiller of claim 12, further comprising:
an internal temperature acquisition module configured to:
and acquiring the temperature inside the refrigeration and freezing equipment or acquiring the temperature inside the refrigeration and freezing equipment according to the gear of a temperature controller of the refrigeration and freezing equipment.
14. A refrigerator-freezer according to claim 13, wherein
The internal temperature acquisition module comprises a temperature sensor arranged inside the refrigeration and freezing equipment.
15. A refrigerator-freezer according to claim 12, wherein
The anti-condensation device comprises a heating device positioned on the heat insulation component and configured to raise the temperature of the outer surface of the heat insulation component to the dew point temperature when the heat insulation component is in condensation risk.
16. A refrigerator-freezer according to claim 15, wherein
The heating device comprises a multi-sectional heating wire or a plurality of independently controlled heating wires.
17. A refrigerator-freezer according to claim 12, wherein the refrigerator-freezer is arranged to receive a supply of refrigerant
The heat insulation component is positioned on the front surface of the refrigerating and freezing equipment.
18. The refrigeration chiller of claim 12, further comprising:
a data request module configured to send a temperature and humidity information request to the remote server at a preset time period to obtain the temperature and humidity of the environment external to the refrigeration and freezing apparatus from the remote server.
19. A refrigerator-freezer according to claim 12, wherein the refrigerator-freezer is arranged to receive a supply of refrigerant
The remote server stores the binding relation information of the refrigeration and freezing equipment and a user terminal;
the remote server obtains the temperature and humidity of the environment external to the refrigeration and freezing apparatus from the user terminal via a network connection.
20. An anti-condensation system for a refrigerator-freezer comprising a remote server, a user terminal and a refrigerator-freezer as claimed in any one of claims 12 to 19, wherein
The remote server is respectively connected with the user terminal and the refrigeration and freezing equipment through networks and is configured to acquire the temperature and the humidity of the external environment of the refrigeration and freezing equipment from the user terminal;
the refrigerated freezer is configured to obtain the temperature and humidity of the environment external to the refrigerated freezer from the remote server.
21. The anti-condensation system according to claim 20, wherein
The refrigeration freezer is further configured to send a temperature and humidity information request to the remote server for a preset time period;
the remote server is further configured to: storing the binding relationship information between the user terminal and the refrigeration and freezing equipment, and forwarding a temperature and humidity information request sent by the refrigeration and freezing equipment to the user terminal;
the user terminal is configured to: and sending the temperature and the humidity of the external environment of the refrigerating and freezing equipment to the remote server according to the temperature and humidity information request.
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| CN110173946A (en) * | 2019-05-09 | 2019-08-27 | 青岛海尔电冰箱有限公司 | Refrigerating plant and its condensation prevention control method |
| CN110595139A (en) * | 2019-09-10 | 2019-12-20 | 合肥晶弘电器有限公司 | Refrigerator overturning beam condensation prevention control method and device, control equipment and refrigerator |
| CN111536750B (en) * | 2020-04-24 | 2022-01-11 | 海信（山东）冰箱有限公司 | Refrigerator and control method thereof |
| CN112665302B (en) * | 2020-12-28 | 2022-10-04 | Tcl家用电器（合肥）有限公司 | Refrigerator turnover beam condensation-preventing heating control method and device and refrigerator |
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