CN104880016B - 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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- CN104880016B CN104880016B CN201510275519.5A CN201510275519A CN104880016B CN 104880016 B CN104880016 B CN 104880016B CN 201510275519 A CN201510275519 A CN 201510275519A CN 104880016 B CN104880016 B CN 104880016B
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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
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/003—Arrangement or mounting of control or safety devices for movable devices
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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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- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
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 geographical location information residing for refrigerating equipment and the season information belonging to current time are obtained from remote server；Season information according to belonging to geographical location information and current time obtains the temperature and humidity of external environment condition；Dew-point temperature is obtained according to the temperature and humidity of external environment condition；According to the coefficient of heat insulation of the temperature of external environment condition, internal temperature and heat insulating member, 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 present invention obtains geographical location information residing for refrigerating equipment and the season information belonging to current time from remote server, and and then obtain the humiture of environment, without the extra sensor for setting detection ambient temperature and humidity.
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 the refrigerator or freezer runs, the temperature in the box body is far lower than the temperature outside the box body, and the heat insulation parts such as the two sides of the box door of the box body, the upper cross beam, the middle cross beam and the door seal are easy to generate condensation on the surface of the heat insulation parts 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 cycle. Because the external environment temperature and humidity of the refrigeration and freezing equipment can change, the adoption of a fixed period mode will inevitably do a lot of useless work, which undoubtedly increases the energy consumption of the refrigeration and freezing equipment.
Disclosure of Invention
It is an object of the present invention 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, so as to more intelligently prevent the heat insulation component from generating condensation and minimize additional energy consumption.
It is another object of the present invention to provide a refrigeration freezer and an anti-condensation system for a refrigeration freezer.
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;
acquiring geographical position information of the refrigeration and freezing equipment and seasonal information of the current time from the remote server;
obtaining the temperature and the humidity of the external environment of the refrigerating and freezing equipment according to the geographical position information of the refrigerating and freezing equipment and the season information of the current time;
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 Indicating the temperature inside the refrigerator-freezer, 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 higher 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 located on the insulation component to raise the temperature of the insulation component exterior surface 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;
and the remote server acquires the geographical position information of the refrigeration and freezing equipment and the season information of the current time 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 geographical location information of the refrigeration and freezing equipment and the season information to which the current time belongs from the remote server is achieved by sending geographical location information and season information requests to the remote server by the refrigeration and freezing equipment in preset time periods.
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;
the data receiving module is configured to acquire geographical position information of the refrigeration and freezing equipment and season information of the current time from the remote server;
the processing module is configured to obtain the temperature and the humidity of the external environment of the refrigerating and freezing equipment according to the geographical position information of the refrigerating and freezing equipment and the season information of the current time; 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 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 and freezing apparatus further comprises:
a data request module configured to send geographical location information and a season information request to the remote server at a preset time period to obtain geographical location information of the refrigeration and freezing equipment and season information of the current time from the remote server.
Optionally, the remote server stores information of a binding relationship between the refrigeration and freezing device and a user terminal;
and the remote server acquires the geographical position information of the refrigeration and freezing equipment and the season information of the current time from the user terminal through network connection.
According to a further aspect of the present invention, there is provided an anti-condensation system for a refrigeration chiller, comprising: remote server, user terminal and any one of the refrigeration and freezing equipment, wherein
The remote server is respectively connected with the user terminal and the refrigerating and freezing equipment through a network and is configured to acquire geographical position information of the refrigerating and freezing equipment and season information of the current time from the user terminal;
the refrigeration and freezing equipment is configured to acquire the geographical position information of the refrigeration and freezing equipment and the season information of the current time from the remote server.
Optionally, the refrigeration chiller is further configured to send a request for geographical location information and seasonal information to the remote server for a preset period of time;
the remote server is further configured to: storing binding relationship information between the user terminal and the refrigeration and freezing equipment, and forwarding geographical position information and season information requests sent by the refrigeration and freezing equipment to the user terminal;
the user terminal is further configured to: and sending the geographical position information of the refrigeration and freezing equipment and the season information of the current time to the remote server according to the geographical position information and the season 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; however, it is not thought that data information is acquired from a user terminal or a remote server, and the intelligent household appliance itself controls the operation thereof according to the acquired data information. In the invention, the network connection system of the existing intelligent refrigeration and freezing equipment can be fully utilized to obtain the geographical position information of the refrigeration and freezing equipment and the season information of the current time from the user terminal or the remote server, further obtain the temperature and the humidity of the external environment of the refrigeration and freezing equipment according to the geographical position information and the season information of the current time, further obtain the dew point temperature of the external environment of the refrigeration and freezing equipment according to the temperature and the humidity, and further judge whether to perform condensation prevention treatment on the refrigeration and freezing equipment. The invention does not need to additionally arrange a sensor for detecting the environment temperature and humidity in the refrigeration and freezing equipment, and can be used in the intelligent refrigeration and freezing equipment without the temperature and humidity sensor for detecting the external environment temperature and humidity.
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 prevented from generating condensation. Compared with the mode that the heating device heats according to a fixed period in the prior art, 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, when the temperature of the outer surface of the heat insulation component is raised to the dew point temperature, the temperature of the outer surface of the heat insulation component can be 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 inside is changed, and whether the heat insulation component has the risk of condensation 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 part is large, the heat insulation part 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 illustration and not 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, network connection is established with a remote server.
And step S104, acquiring the geographical position information of the refrigerating and freezing equipment and the season information of the current time from the remote server.
And S106, acquiring the temperature and the humidity of the external environment of the refrigerating and freezing equipment according to the geographical position information of the refrigerating and freezing equipment and the seasonal information of the current time.
And step S108, obtaining the dew point temperature of the external environment of the refrigerating and freezing equipment according to the temperature and the humidity of the external environment of the refrigerating and freezing equipment.
In step S110, the temperature of the outer surface of the heat insulating member is obtained from the temperature of the environment outside the refrigerating and freezing apparatus, the temperature inside the refrigerating and freezing apparatus, and the heat insulating coefficient of the heat insulating member of the refrigerating and freezing apparatus.
And step S112, 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 have the condensation risk, executing step S114; otherwise, the anti-condensation treatment is not carried out. In some embodiments, the geographical location information of the refrigeration and freezing equipment and the season information of the current time are obtained from the remote server at preset time periods. When it is determined in step S112 that the anti-condensation process is not performed, steps S104 to S112 may be re-performed after a preset time period has elapsed.
And step S114, performing condensation prevention treatment.
Step S108 and step S110 have no specific execution order, and may be executed simultaneously or may not be executed simultaneously.
The anti-condensation method can fully utilize the network connection system of the existing intelligent refrigeration and freezing equipment, acquire the geographical position information of the refrigeration and freezing equipment and the season information of the current time from the remote server, further acquire the temperature and the humidity of the external environment of the refrigeration and freezing equipment according to the geographical position information and the season information of the current time, and further acquire the dew point temperature of the external environment of the refrigeration and freezing equipment 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 does not need to additionally arrange a temperature and humidity sensor for detecting the environment 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 environment temperature and humidity.
Further, the anti-condensation method of the invention can determine whether the anti-condensation treatment is needed according to the dew point temperature of the external environment of the refrigeration and freezing equipment and the external surface temperature of the heat insulation component, thereby intelligently preventing the heat insulation component from generating condensation. Compared with the mode that the heating device heats according to a fixed period in the prior art, 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.
In some embodiments, in step S104, the remote server may store the geographical location information of the refrigeration and freezing apparatus in advance, where the geographical location information may be longitude and latitude, or may be a region, such as a city. The remote server obtains the current date information from a built-in date database or through a network, and inquires the season information of the remote server at the current time in the network by combining with the geographical position information.
In some embodiments, the remote server stores information about the binding relationship between the refrigeration chiller and a user terminal. The user terminal may be, for example, a mobile phone, a tablet computer, or the like. The user terminal may establish a network connection with a remote server via a home wireless router or a data network. The remote server can acquire the geographical position information of the external environment of the refrigerating and freezing equipment and the season information of the current time from the user terminal through network connection. The user terminal searches geographical position information of the location of the refrigerating and freezing equipment and season information of the current time from the network; or acquiring the geographical position information of the place where the refrigerating and freezing equipment is located from an APP (application), such as ink weather or a drip car, installed on a user terminal, calling a built-in date database of the APP or acquiring current date information from other APPs, and inquiring the season information of the current time of the APP in a network according to the geographical position information. Of course, the possibility of manually setting or manually inputting the geographical location information of the refrigeration and freezing apparatus and the season information to which the current time belongs is not excluded. After the user terminal obtains the geographical position information of the refrigerating and freezing equipment and the season information of the current time, the geographical position information and the season information can be sent to a remote server.
The binding of the refrigerator-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 the user terminal detects that the network access equipment is accessed to the refrigerating and freezing equipment, the user terminal is bound with the refrigerating and freezing equipment, after the binding, the user terminal can also send the terminal identification information and the equipment identification information of the refrigerating and freezing equipment bound with the terminal identification information to a remote server, and the binding relation information of the user terminal and the refrigerating and freezing equipment is registered in the remote server.
The temperature and humidity of the external environment of the refrigeration and freezing device mentioned in step S106 are the temperature and humidity of the air of the external environment of the refrigeration and freezing device; accordingly, the dew point temperature of the environment outside the refrigeration and freezing apparatus mentioned in step S108 is the dew point temperature of the air outside the refrigeration and freezing apparatus.
In step S106, the temperature and humidity information corresponding to the geographical location information and the season information may be stored in the refrigeration and freezing device, and the temperature and humidity of the environment outside the refrigeration and freezing device may be directly obtained according to the geographical location information where the refrigeration and freezing device is located and the season information to which the current time belongs. In some embodiments, temperature and humidity information may be stored in a refrigeration freezer for different geographical locations during different seasons. For each geographical location, it corresponds to temperature and humidity for 4 different seasons; for each temperature or humidity, it is the average value of the same geographical location over a period of time (e.g., 10 years, 15 years, or 20 years) over a season. For example, for the a city stored in the refrigerating and freezing apparatus, 4 quarterly average temperatures (spring average temperature, summer average temperature, fall average temperature, winter average temperature) and 4 quarterly average humidities (spring average humidity, summer average humidity, fall average humidity, winter average humidity) corresponding thereto are stored in the refrigerating and freezing apparatus. Taking the average temperature in spring stored in a refrigeration freezer as an example, it may be, for example, the average temperature of the average temperature in spring from 2000 to 2014 for 14 years.
In some embodiments of the present invention, in step S108, the dew point temperature of the environment outside the refrigeration and freezing apparatus can be obtained by a psychrometric chart lookup. The dew point temperature corresponding to the temperature and humidity of the environment outside the refrigeration and freezing apparatus can be searched in the psychrometric chart, and the dew point temperature of the environment outside the refrigeration and freezing apparatus is obtained. Specifically, in the psychrometric chart, the temperature value when the intersection of the dry-bulb temperature (which may be approximately equal to the temperature of the external environment of the refrigeration and freezing equipment) and the moisture content (which may be approximately equal to the humidity of the external environment of the refrigeration and freezing equipment) is cooled to the saturation state is the dew-point temperature of the external environment of the refrigeration and freezing equipment.
In some alternative embodiments of the present invention, in step S108, 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.
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 S108, the dew point temperature of the environment outside the refrigeration and freezing equipment 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 S110, 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 refrigerator-freezer and the inner surface of the thermal insulation member 2 The thermal insulation coefficient between the air in the environment outside the refrigerating and freezing equipment and the outer surface of the thermal insulation component is shown, delta represents the thickness of the thermal insulation component, and lambda represents the thermal insulation coefficient of the thermal insulation component.
In step S110, before obtaining the temperature of the outer surface of the thermal insulation member, obtaining the temperature of the inside of the refrigeration and freezing apparatus 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. When the temperature acquired in step S110 is not the celsius temperature, it may be converted into the celsius temperature.
It should be noted that, in the prior art, the temperature of the environment outside the refrigeration and freezing apparatus is usually directly used as the temperature of the outer surface of the thermal insulation member, or the temperature of the outer surface of the thermal insulation member 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 obtained by device measurement, or is difficult to be accurately obtained by device measurement. In the condensation preventing method of the present invention, the temperature of the outer surface of the heat insulating member is calculated from the temperature of the environment outside the refrigeration and freezing apparatus, the temperature of the interior of the refrigeration and freezing apparatus, and the heat insulating coefficient of the heat insulating member, so that the temperature of the outer surface of the hot member can be obtained. In the anti-condensation method provided by the embodiment of the invention, the geographical position information of the refrigeration and freezing equipment and the season information of the current time can be obtained through the remote server, and the temperature T of the external environment of the refrigeration and freezing equipment is determined according to the geographical position information and the season information of the current time 1 The temperature T inside the refrigerating and freezing equipment can be accurately acquired by using a sensor, a thermometer and the like 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 present invention computationally derives the temperature of the outer surface of the thermal insulation member from the two temperature data.
In some embodiments of the invention, step S112 may comprise: 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 present invention, step S114 may include activating a heating device located on the insulation component to raise the temperature of the outer surface of the insulation component to the 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 S114 may further include causing the heating device to heat the 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 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 of the heat insulation component is high (or condensation has formed), the heating device can be used for heating 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 condensation risk 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 S114 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 method for preventing condensation, during the period that 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 by a temperature difference, the step S104 can be returned to, the geographical position information of the refrigeration and freezing equipment and the seasonal information of the current time are obtained again to obtain the temperature and the humidity of the external environment of the refrigeration and freezing equipment, the temperature of the interior of the refrigeration and freezing equipment is obtained again, when 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 interior obtained again changes, the dew point temperature and the temperature of the outer surface of the heat insulation component are calculated again, and whether the heat insulation component has the condensation risk or not is judged again, so that the heat insulation component is prevented from generating condensation intelligently and effectively.
In an alternative embodiment, during the period that the heating device is started to enable the temperature of the outer surface of the heat insulation component to be kept at the dew point temperature or higher by a temperature difference, the temperature inside the refrigeration and freezing equipment can be only collected again until the temperature inside 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 or not is judged again, and therefore condensation of the heat insulation component is prevented 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 geographical location information of the refrigeration and freezing equipment and the season information to which the current time belongs from the remote server is performed by the refrigeration and freezing equipment sending the geographical location information and the season information request to the remote server at a preset time period. In other embodiments, the geographical location information of the refrigeration and freezing equipment and the season information of the current time are obtained from the remote server by the remote server sending the geographical location information of the refrigeration and freezing equipment and the season information of the current time to the refrigeration and freezing equipment at preset time periods.
Fig. 2 is a schematic flow chart of an anti-condensation method according to another embodiment of the present invention. As shown in fig. 2, in other embodiments of the present invention, between step S102 and step S104, the method further includes:
and step S103, sending a geographic position information and season information request to a remote server.
After the remote server receives the geographical position information and the season information request sent by the refrigerating and freezing equipment, the remote server obtains the geographical position information of the refrigerating and freezing equipment and the season information of the current time through a network or a user terminal bound with the refrigerating and freezing equipment, and sends the obtained geographical position information of the refrigerating and freezing equipment and the obtained season information of the current time to the refrigerating and freezing equipment. In some embodiments, the remote server forwards the received geographical location information and season information request to the user terminal bound to the refrigeration and freezing equipment, and the user terminal sends the geographical location information where the refrigeration and freezing equipment is located and the season information to which the current time belongs to the remote server according to the geographical location information and season information request.
In the anti-condensation method of the embodiment of the invention, the refrigeration and freezing equipment can send the geographical position information and the season information request to the remote server at a preset time period. After the geographical position information and the season information request are sent each time, the geographical position information of the refrigerating and freezing equipment and the season information of the current time are obtained from the remote server.
Specifically, in the embodiment shown in fig. 2, when it is determined that the heat insulating member has no risk of condensation in step S112 and no anti-condensation process is performed, the process may return to steps S103 to S112 to send the geographical location information and the season information request to the remote server after a preset time period to determine whether there is risk of condensation again. The predetermined time period may be 1 day, 2 days, 5 days, 10 days, 15 days, 30 days, etc.
In the period of keeping the temperature of the outer surface of the heat insulation component at or above the dew point temperature by a temperature difference in step S114, the process may return to steps S103 to S112, and the geographical location information and the seasonal information request may be sent to the remote server again, so as to determine whether the heat insulation component is at 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 acquire, from a remote server, information of a geographical location where the refrigeration-freezing apparatus 100 is located and season information to which the current time belongs. The processing module 140 is configured to obtain the temperature and humidity of the environment outside the refrigerator-freezer 100 according to the geographical location information of the refrigerator-freezer 100 and the seasonal information of the current time; obtaining a dew point temperature of an environment outside the refrigerator-freezer 100 from a temperature and a humidity of the environment outside 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 geographical position information of the refrigeration and freezing equipment 100 and the season information of the current time from the user terminal or the remote server, further acquire the temperature and the humidity of the external environment of the refrigeration and freezing equipment 100 according to the geographical position information and the season information of the current time, 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 perform condensation prevention treatment on the refrigeration and freezing equipment 100. The refrigeration and freezing equipment 100 does not need to be additionally provided with a temperature and humidity sensor for detecting the temperature and the humidity of the environment, 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 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 freezer 100 may further include a data request module 130 configured to send geographical location information and a request for seasonal information to a remote server at a preset time period to obtain geographical location information where the refrigeration freezer 100 is located and seasonal information to which the current time belongs from the remote server. After receiving the geographic location information and the season information request, the remote server may obtain the geographic location information of the refrigeration and freezing device 100 and the season information of the current time, and send the geographic location information and the season information to the refrigeration and freezing device 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 equipment 100 and a user terminal. The remote server may acquire geographical location information where the refrigerator-freezer 100 is located and season information to which the current time belongs 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 refrigeration freezer 100 it acquires to the processing module 140. The data receiving module 120 is also configured to send the geographical location information of the refrigerator-freezer 100 obtained from the remote server and the season information to which the current time belongs to the processing module 140. The processing module 140 obtains the temperature and humidity of the external environment of the refrigerating and freezing apparatus 100 according to the geographical location information provided by the data receiving module 120 and the season information to which the current time belongs, obtains the dew point temperature and the temperature of the external surface of the heat insulating member according to the temperature and humidity of the external environment of the refrigerating and freezing apparatus 100 and the data provided by the internal temperature obtaining module 170, and sends 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 temperature and humidity information corresponding to geographical location information and season information in advance, and the temperature and humidity of the environment outside the refrigeration and freezing apparatus 100 may be directly obtained according to the geographical location information where the refrigeration and freezing apparatus 100 is located and the season information to which the current time belongs. Or the processing module 140 is connected to a module or device storing temperature and humidity information corresponding to the geographical location information and the season information, so that the processing module 140 can query the module or device for the corresponding temperature and humidity according to the geographical location information and the season information, thereby serving as the temperature and humidity of the environment outside the refrigerating and freezing device 100.
In some embodiments, the processing module 140 may further store a psychrometric chart in advance, or the processing module 140 is connected to a module or device storing the psychrometric chart, so that the processing module 140 can look up the corresponding dew point temperature in the psychrometric chart according to the temperature and the humidity, and thus can obtain the corresponding dew point temperature according to the temperature and the 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 the thickness and the thermal insulation coefficient of the thermal insulation member in advance, and a calculation formula for calculating the outer surface temperature of the thermal insulation member from the temperatures inside and outside the thermal insulation member, the thermal insulation coefficient, and the thickness, so that the processing module 140 can calculate the outer surface temperature of the thermal insulation member from the temperatures inside and outside the thermal insulation 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 heat insulating member to more uniformly heat the heat insulating 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 heat insulating member with a corresponding heating power by the heating device 162 according to the difference between the dew point temperature and the temperature of the outer surface of the heat insulating member.
It will be appreciated by those skilled in the art that the refrigeration freezer 100 of the present invention may be a refrigerator, freezer, cold-storage tank, or other device having refrigeration capability.
Based on the same inventive concept, the embodiment of the present invention also provides an anti-condensation system for the refrigeration and freezing apparatus 100, which can prevent the heat insulation component of the refrigeration and freezing apparatus 100 from generating condensation by 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 apparatus 100 (shown in fig. 3).
The remote server 200 establishes network connections with the user terminal 300 and the refrigeration and freezing device 100, respectively, and is configured to acquire geographical location information where the refrigeration and freezing device 100 is located and season information to which the current time belongs from the user terminal 300. The refrigerator-freezer 100 is configured to acquire geographical location information where the refrigerator-freezer 100 is located and season information to which the current time belongs from the remote server 200.
In some embodiments, the refrigeration freezer 100 is further configured to send geographic location information and seasonal information requests to the remote server 200 at preset time periods. The remote server 200 may also be configured to: stores the binding relationship information between the user terminal 300 and the refrigeration and freezing equipment 100, and forwards the geographical location information and the season information request transmitted from the refrigeration and freezing equipment 100 to the user terminal 300. The user terminal 300 is configured to transmit geographical location information where the refrigerator-freezer 100 is located and season information to which the current time belongs to the remote server 200 according to the geographical location information and the season information request.
After receiving the geographical location information and the season information request forwarded by the remote server 200, the user terminal 300 may search the geographical location information of the location of the refrigeration and freezing equipment and the season information to which the current time belongs from the network; or acquiring the geographical position information of the place where the refrigerating and freezing equipment is located from an APP (application), such as ink weather or a drip car, installed on a user terminal, calling a built-in date database of the APP or acquiring current date information from other APPs, and inquiring the season information of the current time of the APP in a network according to the geographical position information. Of course, the possibility of manually setting or manually inputting the geographical location information of the refrigerating and freezing device and the season information to which the current time belongs is not excluded. After the user terminal obtains the geographical position information of the refrigerating and freezing equipment and the season information of the current time, the geographical position information and the season information can be sent to a remote server.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived 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 (20)
1. A method of preventing condensation for a refrigeration chiller comprising:
establishing a network connection with a remote server;
acquiring geographical position information of the refrigeration and freezing equipment and seasonal information of the current time from the remote server;
obtaining the temperature and the humidity of the external environment of the refrigerating and freezing equipment according to the geographical position information of the refrigerating and freezing equipment and the season information of the current time;
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; wherein
The remote server stores the binding relation information of the refrigeration and freezing equipment and a user terminal;
and the remote server acquires the geographical position information of the refrigeration and freezing equipment and the season information of the current time from the user terminal through network connection.
2. The anti-condensation method according to claim 1, wherein the temperature of the outer surface of the heat insulating 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 between the air inside the refrigerating and freezing apparatus and the inner surface of the thermal insulation member, h 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.
3. 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.
4. 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 higher than the temperature of the outer surface of the heat insulation component, judging that the heat insulation component has a condensation risk.
5. The anti-condensation method according to claim 4, wherein 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.
6. The anti-condensation method according to claim 5, wherein the anti-condensation treatment further comprises:
and enabling 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.
7. The anti-condensation method according to claim 5, further comprising, at the anti-condensation process:
maintaining the temperature of the outer surface of the insulation member at or above the dew point temperature by a temperature differential.
8. The method of claim 1, wherein the method of preventing condensation comprises
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 geographical location information of the refrigeration and freezing equipment and the season information of the current time are acquired from the remote server by the refrigeration and freezing equipment sending geographical location information and season information requests to the remote server 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 according to claim 1, wherein the heat insulating member is a heat insulating member located on a front surface of the refrigeration and freezing apparatus.
12. A refrigeration freezer apparatus comprising:
the network connection module is used for establishing network connection with the remote server;
the data receiving module is configured to acquire geographical position information of the refrigeration and freezing equipment and season information of the current time from the remote server;
the processing module is configured to obtain the temperature and the humidity of the external environment of the refrigerating and freezing equipment according to the geographical position information of the refrigerating and freezing equipment and the seasonal information of the current time; 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 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 a condensation risk or not 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 remote server stores the binding relation information of the refrigeration and freezing equipment and a user terminal;
and the remote server acquires the geographical position information of the refrigeration and freezing equipment and the season information of the current time from the user terminal through network connection.
13. The refrigeration chiller of claim 12, further comprising:
an internal temperature acquisition module configured to:
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.
14. A refrigerator-freezer according to claim 13, wherein the refrigerator-freezer is arranged to receive a supply of refrigerant
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 refrigerator-freezer is arranged to receive a supply of refrigerant
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 insulating member is an insulating member located on a front face of the refrigerator-freezer.
18. A refrigerator-freezer according to claim 12, further comprising:
a data request module configured to send geographical location information and a season information request to the remote server at a preset time period to obtain geographical location information of the refrigeration and freezing equipment and season information of the current time from the remote server.
19. An anti-condensation system for a refrigeration freezer comprising: remote server, user terminal and refrigerator-freezer according to any of claims 12-18, wherein
The remote server is respectively connected with the user terminal and the refrigerating and freezing equipment through a network and is configured to acquire geographical position information of the refrigerating and freezing equipment and season information of the current time from the user terminal;
the refrigeration and freezing equipment is configured to acquire the geographical position information of the refrigeration and freezing equipment and the season information of the current time from the remote server.
20. The anti-condensation system of claim 19, wherein
The refrigeration chiller is further configured to send a request for geographical location information and seasonal information to the remote server for a preset period of time;
the remote server is further configured to: storing binding relationship information between the user terminal and the refrigeration and freezing equipment, and forwarding geographical position information and season information requests sent by the refrigeration and freezing equipment to the user terminal;
the user terminal is further configured to: and sending the geographical position information of the refrigeration and freezing equipment and the season information of the current time to the remote server according to the geographical position information and the season information request.
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