CN104880016A - Cold storage refrigeration device and anti-condensation method and system thereof - Google Patents

Cold storage refrigeration device and anti-condensation method and system thereof Download PDF

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Publication number
CN104880016A
CN104880016A CN201510275519.5A CN201510275519A CN104880016A CN 104880016 A CN104880016 A CN 104880016A CN 201510275519 A CN201510275519 A CN 201510275519A CN 104880016 A CN104880016 A CN 104880016A
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China
Prior art keywords
temperature
heat insulating
insulating member
refrigerating equipment
remote server
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CN201510275519.5A
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CN104880016B (en
Inventor
张奎
王宁
刘明勇
吴光瑞
李士东
郑桥
陈庆
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Qingdao Haier Co Ltd
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Qingdao Haier Co Ltd
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Priority to CN201510275519.5A priority Critical patent/CN104880016B/en
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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
    • 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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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention provides a cold storage refrigeration device and an anti-condensation method and system thereof. The anti-condensation method includes the steps that network connection with a remote server is established; geographical location information of the cold storage refrigeration device and season information to which current time belongs are acquired from the remote server; the temperature and the humidity of the external environment are acquired according to the geographical location information of the cold storage refrigeration device and the season information to which the current time belongs; the dew point temperature is acquired according to the temperature and the humidity of the external environment; the temperature of the outer surface of a heat insulation part is acquired according to the temperature of the external environment, the internal temperature and the heat insulation coefficient of the heat insulation part; whether the condensation risk exists to the heat insulation part or not is judged according to the dew point temperature and the temperature of the outer surface of the heat insulation part; when it is judged that the condensation risk exists to the heat insulation part, anti-condensation treatment is conducted. The geographical location information of the cold storage refrigeration device and the season information to which the current time belongs are acquired from the remote server, the temperature and the humidity of the environment are acquired, and no sensor for detecting the temperature and the humidity of the environment needs to be additionally arranged.

Description

Refrigerating equipment and dewing-proof method thereof and anti-condensation system
Technical field
The present invention relates to refrigeration technology field, particularly relate to a kind of refrigerating equipment and dewing-proof method thereof and anti-condensation system.
Background technology
Condensation is because the gas of high temperature, high humidity is when running into cryogenic object, is the phenomenon of liquid when reaching dew-point temperature in the liquefaction of cryogenic object surface.Due to when such as the refrigerating such as refrigerator, refrigerator equipment runs, temperature in its casing is far below the temperature of casing outside, the heat insulating members such as the both sides of casing chamber door, entablature, middle cross beam and door seal, due to the effect directly by box house cold air, easily produce dew condensation phenomenon on its surface.For preventing condensation, generally pasting heater at these heat insulating member inner surfaces, improving surface temperature by Electric heating.At present, heater is generally heat according to the fixed cycle.Because the ambient temperature of refrigerating equipment and humidity can change, adopt fixed cycle mode certainly will will do a lot of idle work, this adds the energy consumption of refrigerating equipment undoubtedly.
Intelligent appliance of the prior art receives the control instruction of user terminal or remote server transmission usually, and performs certain operation according to this control instruction; And do not expect from user terminal or remote server and obtain data message, according to the data message of acquisition it to be operated by intelligent appliance itself and control.And in the present invention, the network connection system of existing intelligent refrigerated freezing equipment can be made full use of, the geographical location information residing for refrigerating equipment and the season information belonging to current time is obtained from user terminal or remote server, and then the season information belonging to this geographical location information and current time obtains the temperature and humidity of refrigerating device external environment, and obtain the dew-point temperature of refrigerating device external environment further according to this temperature and humidity, and then judge whether to carry out anti-condensation process to refrigerating equipment.The present invention additionally arranges the sensor of testing environment humiture without the need to refrigerating equipment, can be used for not having in the intelligent refrigerated freezing equipment of the Temperature Humidity Sensor detecting external environment condition humiture.
The present invention is used for the dewing-proof method of refrigerating equipment, can determine whether to need anti-condensation process according to the hull-skin temperature of the dew-point temperature of refrigerating device external environment and heat insulating member, thus prevents heat insulating member from producing condensation intelligently.Compared with carrying out with heater in prior art the mode that heats according to the fixed cycle, the present invention not only saves energy consumption, also can avoid because the heating refrigeration performance to refrigerating equipment unnecessary to heat insulating member brings adverse effect simultaneously.
Further, dewing-proof method of the present invention is after carrying out anti-condensation process, when the temperature of heat insulating member outer surface is increased to dew-point temperature, the temperature of heat insulating member outer surface can be made to remain on dew-point temperature or higher than dew-point temperature one temperature gap, until when in the temperature and humidity of refrigerating device external environment again obtained and the temperature of inside, at least one value changes, the temperature according to the dew-point temperature recalculated and heat insulating member outer surface judges whether heat insulating member has condensation risk.Thus effectively prevent heat insulating member from producing condensation.
In addition, dewing-proof method of the present invention can, according to the difference of dew-point temperature and heat insulating member hull-skin temperature, make heater heat heat insulating member with corresponding heating power.Dewing-proof method of the present invention can prevent when the difference of dew-point temperature and heat insulating member hull-skin temperature is less, to heat insulating member superheated; And when the difference of dew-point temperature and heat insulating member hull-skin temperature is larger, with relatively high power, heat insulating member is heated, thus complete anti-condensation process fast.
According to hereafter by reference to the accompanying drawings to the detailed description of the specific embodiment of the invention, those skilled in the art will understand above-mentioned and other objects, advantage and feature of the present invention more.
Summary of the invention
One object of the present invention is to overcome in prior art exists at least one defect, a kind of dewing-proof method for refrigerating equipment is provided, whether it can have condensation dangerous according to the heat insulating member of the temperature automatic decision refrigerating equipment of the temperature of refrigerating device external environment, humidity and its inside, thus prevent heat insulating member from producing condensation more intelligently, reduce additional energy as far as possible.
Another object of the present invention is to provide a kind of refrigerating equipment and the anti-condensation system for refrigerating equipment.
According to an aspect of the present invention, provide a kind of dewing-proof method for refrigerating equipment, comprising:
Set up network with remote server to be connected;
The geographical location information residing for described refrigerating equipment and the season information belonging to current time is obtained from described remote server;
Geographical location information residing for described refrigerating equipment and the season information belonging to current time obtain the temperature and humidity of described refrigerating device external environment;
The dew-point temperature of described refrigerating device external environment is obtained according to the temperature and humidity of described refrigerating device external environment;
According to the coefficient of heat insulation of the heat insulating member of the temperature of described refrigerating device external environment, the temperature of described refrigerating device interior and described refrigerating equipment, obtain the temperature of described heat insulating member outer surface;
Temperature according to described dew-point temperature and described heat insulating member outer surface judges whether described heat insulating member has condensation risk;
When judging that described heat insulating member has condensation risk, carry out anti-condensation process.
Alternatively, the temperature of described heat insulating member outer surface is obtained by following formula:
T f = T 1 - T 1 - T 2 h 2 ( 1 h 1 + 1 h 2 + δ λ )
Wherein, T frepresent the temperature of described heat insulating member outer surface, T 1represent the temperature of described refrigerating device external environment, T 2represent the temperature of described refrigerating device interior, h 1represent the coefficient of heat insulation of described refrigerating device interior air and described heat insulating member inner surface, h 2represent the air of described refrigerating device external environment and the coefficient of heat insulation of described heat insulating member outer surface, δ represents the thickness of described heat insulating member, and λ represents the coefficient of heat insulation of described heat insulating member.
Alternatively, the dew-point temperature obtaining described refrigerating device external environment according to the temperature and humidity of described refrigerating device external environment comprises:
In psychrometric chart, search the dew-point temperature corresponding with the temperature and humidity of described refrigerating device external environment, thus obtain the dew-point temperature of described refrigerating device external environment.
Alternatively, judge whether described heat insulating member has condensation risk to comprise according to the temperature of described dew-point temperature and described heat insulating member outer surface:
The size of the temperature of more described dew-point temperature and described heat insulating member outer surface;
If described dew-point temperature is greater than the temperature of described heat insulating member outer surface, then judge that described heat insulating member has condensation risk.
Alternatively, described anti-condensation process comprises:
Start the heater be positioned on described heat insulating member, so that the temperature of described heat insulating member outer surface is increased to described dew-point temperature.
Alternatively, described anti-condensation process also comprises:
According to the difference of described dew-point temperature and described heat insulating member hull-skin temperature, described heater is heated to described heat insulating member with corresponding heating power.
Alternatively, described dewing-proof method also comprises in described anti-condensation process:
The temperature of described heat insulating member outer surface is made to remain on described dew-point temperature or higher than described dew-point temperature one temperature gap.
Alternatively, described remote server stores the binding relationship information of described refrigerating equipment and a user terminal;
Described remote server obtains the geographical location information residing for described refrigerating equipment and the season information belonging to current time via network connection from described user terminal.
Alternatively, be provided with WIFI module in described refrigerating equipment, described refrigerating equipment is set up network by described WIFI module with described remote server and is connected.
Alternatively, wherein obtain the geographical location information residing for described refrigerating equipment and the season information belonging to current time from described remote server and send geographical location information with preset time period to described remote server by described refrigerating equipment and season information request realizes.
Alternatively, described dewing-proof method also comprised before the temperature obtaining described heat insulating member outer surface:
Gather the temperature of described refrigerating device interior or obtain the temperature of described refrigerating device interior according to the gear of the temperature controller of described refrigerating equipment.
Alternatively, described heat insulating member is the heat insulating member being positioned at described refrigerating equipment front.
According to a further aspect in the invention, provide a kind of refrigerating equipment, comprising:
Network connecting module, is connected with the network of remote server for setting up;
Data reception module, is configured to obtain the geographical location information residing for described refrigerating equipment and the season information belonging to current time from described remote server;
Processing module, is configured to the temperature and humidity that the geographical location information residing for described refrigerating equipment and the season information belonging to current time obtain described refrigerating device external environment; The dew-point temperature of described refrigerating device external environment is obtained according to the temperature and humidity of described refrigerating device external environment; And the coefficient of heat insulation of heat insulating member according to the temperature of described refrigerating device external environment, the temperature of described refrigerating device interior and described refrigerating equipment, obtain the temperature of the heat insulating member outer surface of described refrigerating equipment;
Judge module, is configured to judge whether described heat insulating member has condensation risk according to the temperature of described dew-point temperature and described heat insulating member outer surface; And
Condensation-preventing device, is configured to carry out anti-condensation process when described heat insulating member has condensation risk to it.
Alternatively, described refrigerating equipment also comprises:
Internal temperature acquisition module, is configured to:
Gather the temperature of described refrigerating device interior or obtain the temperature of described refrigerating device interior according to the gear of the temperature controller of described refrigerating equipment.
Alternatively, described internal temperature acquisition module comprises the temperature sensor being arranged on described refrigerating device interior.
Alternatively, described condensation-preventing device comprises the heater be positioned on described heat insulating member, is configured to, when described heat insulating member has condensation risk, the temperature of described heat insulating member outer surface is increased to described dew-point temperature.
Alternatively, described heater comprises multisection type heater strip or multiple independent heater strip controlled.
Alternatively, described heat insulating member is the heat insulating member being positioned at described refrigerating equipment front.
Alternatively, described refrigerating equipment also comprises:
Data demand module, be configured to send geographical location information and season information request, to obtain the geographical location information residing for described refrigerating equipment and the season information belonging to current time from described remote server with preset time period to described remote server.
Alternatively, described remote server stores the binding relationship information of described refrigerating equipment and a user terminal;
Described remote server obtains the geographical location information residing for described refrigerating equipment and the season information belonging to current time via network connection from described user terminal.
According to another aspect of the invention, provide a kind of anti-condensation system for refrigerating equipment, comprising: remote server, user terminal and aforementioned arbitrary refrigerating equipment, wherein
Described remote server is set up network with described user terminal and described refrigerating equipment respectively and is connected, and is configured to obtain the geographical location information residing for described refrigerating equipment and the season information belonging to current time from described user terminal;
Described refrigerating Equipments Setting becomes to obtain the geographical location information residing for described refrigerating equipment and the season information belonging to current time from described remote server.
Alternatively, described refrigerating equipment is also configured to send geographical location information and season information request with preset time period to described remote server;
Described remote server is also configured to: store the binding relationship information between described user terminal and described refrigerating equipment, and by the geographical location information that sends from described refrigerating equipment and season information request forward to described user terminal;
Described user terminal is also configured to: according to described geographical location information and season information request, sends the geographical location information residing for described refrigerating equipment and the season information belonging to current time to described remote server.
Accompanying drawing explanation
Hereinafter describe specific embodiments more of the present invention with reference to the accompanying drawings by way of example, and not by way of limitation in detail.Reference numeral identical in accompanying drawing denotes same or similar parts or part.It should be appreciated by those skilled in the art that these accompanying drawings may not be drawn in proportion.In accompanying drawing:
Fig. 1 is according to an embodiment of the invention for the indicative flowchart of the dewing-proof method of refrigerating equipment;
Fig. 2 is in accordance with another embodiment of the present invention for the indicative flowchart of the dewing-proof method of refrigerating equipment.
Fig. 3 is the schematic block diagram of refrigerating equipment according to an embodiment of the invention;
Fig. 4 is according to an embodiment of the invention for the schematic block diagram of the anti-condensation system of refrigerating equipment.
Detailed description of the invention
Fig. 1 is according to an embodiment of the invention for the indicative flowchart of the dewing-proof method of refrigerating equipment.As shown in Figure 1, the method at least comprises the following steps S102 to step S112.
Step S102, sets up network with remote server and is connected.
Step S104, obtains the geographical location information residing for refrigerating equipment and the season information belonging to current time from remote server.
Step S106, the geographical location information residing for refrigerating equipment and the season information belonging to current time obtain the temperature and humidity of refrigerating device external environment.
Step S108, obtains the dew-point temperature of refrigerating device external environment according to the temperature and humidity of refrigerating device external environment.
Step S110, 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, obtains the temperature of heat insulating member outer surface.
Step S112, the temperature according to dew-point temperature and heat insulating member outer surface judges whether heat insulating member has condensation risk.If judge, heat insulating member has condensation risk, then perform step S114; Otherwise, do not carry out anti-condensation process.In certain embodiments, the geographical location information residing for refrigerating equipment and the season information belonging to current time is obtained with preset time period from remote server.When step S112 judges not carry out anti-condensation process, step S104 can be re-executed to step S112 after preset time period.
Step S114, carries out anti-condensation process.
Step S108 and step S110 does not have specific execution sequence, can perform simultaneously, can perform during difference yet.
Dewing-proof method of the present invention can make full use of the network connection system of existing intelligent refrigerated freezing equipment, the geographical location information residing for refrigerating equipment and the season information belonging to current time is obtained from remote server, and then the season information belonging to this geographical location information and current time obtains the temperature and humidity of refrigerating device external environment, and obtain the dew-point temperature of refrigerating device external environment further according to this temperature and humidity, to judge whether further to carry out anti-condensation process to refrigerating equipment.Dewing-proof method of the present invention additionally arranges the Temperature Humidity Sensor detecting its ambient temperature and humidity without the need to refrigerating equipment, can be used for not having in the intelligent refrigerated freezing equipment of the Temperature Humidity Sensor detecting external environment condition humiture.
Further, dewing-proof method of the present invention can determine whether to need anti-condensation process according to the hull-skin temperature of the dew-point temperature of refrigerating device external environment and heat insulating member, thus prevents heat insulating member from producing condensation intelligently.Compared with carrying out with heater in prior art the mode that heats according to the fixed cycle, the present invention not only saves energy consumption, also can avoid because the heating refrigeration performance to refrigerating equipment unnecessary to heat insulating member brings adverse effect simultaneously.
In certain embodiments, in step s 102, refrigerating equipment and remote server are set up after network is connected, and the network by setting up between remote server with refrigerating equipment is connected and realizes data and transmit.Especially, be provided with WIFI module in refrigerating equipment, refrigerating equipment is set up network by WIFI module and remote server and is connected.
In certain embodiments, in step S104, can be previously stored with geographical location information residing for this refrigerating equipment in remote server, this geographical location information can be longitude and latitude, also can be area, as certain city.Remote server is from its built-in date data storehouse or by the current date and time information of Network Capture, and combining geographic location information inquires about its season information belonging to current time in a network.
In certain embodiments, remote server stores the binding relationship information of refrigerating equipment and a user terminal.This user terminal such as can be mobile phone, panel computer etc.User terminal is set up network by family wireless route or data network with remote server and is connected.Remote server can connect from the geographical location information residing for user terminal acquisition refrigerating device external environment and the season information belonging to current time via network.User terminal searches for the season information belonging to the on-site geographical location information of refrigerating equipment and current time from network; Or from user terminal install as ink marks weather or drip to call a taxi and wait APP acquisition refrigerating equipment on-site geographical location information, by calling its built-in date data storehouse or obtaining current date and time information from other APP, and inquire about its season information belonging to current time in a network according to this geographical location information.Certainly, the possibility setting manually or manually input refrigerating device geographical location information and the season information belonging to current time is not got rid of yet.User terminal can be sent to remote server after obtaining refrigerating device geographical location information and the season information belonging to current time.
The binding of refrigerating equipment and user terminal can be carried out in several ways.Wherein a kind of binding mode is: the network access equipment pattern starting user terminal, and start refrigerating equipment to be bound and enter wait binding state, user terminal utilizes network access equipment pattern to set up network at user terminal with refrigerating equipment room to be connected after searching refrigerating equipment, then network is utilized to connect binding acknowledgement user terminal and refrigerating equipment being carried out to terminal identification information and device identifying information, after binding acknowledgement, terminal identification information and device identifying information are transferred to remote server by user terminal, the binding relationship information of registered user's terminal and refrigerating equipment in remote server.Another kind of binding mode is: accessing user terminal to network access device (such as wireless router repeater, hub, switch or router etc.) after, bind request is sent with broadcast mode, bind request can comprise the network access equipment title of access, the password of network access equipment and the terminal identification information of user terminal, be in after the refrigerating equipment of binding state receives bind request, be connected to the network access equipment of specifying according to bind request; After user terminal detects the refrigerating equipment being linked into network access equipment, bind with refrigerating equipment, after binding, user terminal can also be sent to remote server by terminal identification information and with the device identifying information of the refrigerating equipment of its binding, the binding relationship information of registered user's terminal and refrigerating equipment in remote server.
The temperature and humidity of the refrigerating device external environment mentioned in step S106 is the temperature and humidity of the air of refrigerating device external environment; Correspondingly, the dew-point temperature of the refrigerating device external environment mentioned in step S108 is the dew-point temperature of the air of refrigerating device external environment.
In step s 106, can store the temperature and humidity information corresponding with geographical location information and season information in refrigerating equipment, the geographical location information residing for refrigerating equipment and the season information belonging to current time directly can obtain the temperature and humidity of refrigerating device external environment.In certain embodiments, the temperature and humidity information of diverse geographic location in Various Seasonal can be stored in refrigerating equipment.For each geographical position, the temperature and humidity of its all corresponding 4 Various Seasonal; For each temperature or humidity, it is same geographical position at the mean value in a certain season (as 10 years, 15 years or 20 years) over a period to come.Such as, for the A city stored in refrigerating equipment, store in refrigerating equipment its corresponding spring, summer, autumn, 4 season of winter mean temperature (spring mean temperature, summer mean temperature, autumn mean temperature, mean winter temperature) and 4 season medial humidity (spring medial humidity, summer medial humidity, autumn medial humidity, winter medial humidity).For the mean temperature in spring stored in refrigerating equipment, its such as to can be from 2000-2014 years totally 14 years spring mean temperature mean temperature.
In some embodiments of the invention, in step S108, can search by psychrometric chart the dew-point temperature obtaining refrigerating device external environment.The dew-point temperature corresponding with the temperature and humidity of refrigerating device external environment can be searched in psychrometric chart, also just obtain the dew-point temperature of refrigerating device external environment.Particularly, in psychrometric chart, dry-bulb temperature (can be approximately equal to the temperature of refrigerating device external environment) and water capacity (can be approximately equal to the humidity of refrigerating device external environment) intersection point cooling down are the dew-point temperature of refrigerating device external environment to temperature value during saturation state.
In alternate embodiment more of the present invention, in step S108, also can pass through the dew-point temperature of formula (1) and (2) calculating acquisition refrigerating device external environment:
T d = bγ ( T 1 , RH ) a - γ ( T 1 , RH ) - - - ( 1 )
Wherein, γ (T 1, RH) and be intermediate variable, and
γ ( T 1 , RH ) = a T 1 b + T 1 + ln ( RH / 100 ) - - - ( 2 )
Wherein, T drepresent the dew-point temperature of refrigerating device external environment, T 1represent the temperature of refrigerating device external environment, RH represents the relative humidity of refrigerating device external environment, a and b is constant.Particularly, a can value be 17.27; B can value be 237.7 DEG C.
It should be noted that, the humidity that the present invention mentions is relative humidity, is T 1the absolute humidity of air and T during temperature 1the ratio of the saturated humidity ratio at temperature.The temperature mentioned in the embodiment of the present invention is Celsius temperature.
It will be understood by those skilled in the art that above formula (1) and (2) calculate based on Magnus-Tetens approximation method, this approximation method is only effective when following scope: 0 DEG C of <T 1<60 DEG C, and 1%<RH<100%, and 0 DEG C of <T d<50 DEG C.
In other alternate embodiment of the present invention, in step S108, formula (3) can also be passed through and calculate the dew-point temperature obtaining refrigerating device external environment:
T d = T 1 - ( 100 - RH ) 5 - - - ( 3 )
Wherein, T drepresent the dew-point temperature of refrigerating device external environment, T 1represent the temperature of refrigerating device external environment, RH represents the relative humidity of refrigerating device external environment, and RH>50%.That is, when the relative air humidity of refrigerating device external environment is more than 50%, the simple and easy approximation method by formula (3) calculates the air dew point temperature of refrigerating device external.
In some embodiments of the invention, in step s 110, the temperature of heat insulating member outer surface can be obtained by through type (4):
T f = T 1 - T 1 - T 2 h 2 ( 1 h 1 + 1 h 2 + &delta; &lambda; ) - - - ( 4 )
Wherein, T frepresent the temperature of heat insulating member outer surface, T 1represent the temperature of refrigerating device external environment, T 2represent the temperature of refrigerating device interior, h 1represent the coefficient of heat insulation of refrigerating device interior air and heat insulating member inner surface, h 2represent the air of refrigerating device external environment and the coefficient of heat insulation of heat insulating member outer surface, δ represents the thickness of heat insulating member, and λ represents the coefficient of heat insulation of heat insulating member.
In step s 110, before the temperature obtaining heat insulating member outer surface, also can comprise the temperature obtaining refrigerating device interior.The temperature sensor being arranged on refrigerating device interior can be utilized to gather the temperature of refrigerating device interior; Or the temperature of refrigerating device interior also can be obtained according to the gear of the temperature controller of refrigerating equipment.When the temperature obtained in step S110 is non-Celsius temperature, Celsius temperature can be converted into.
It is important to note that in prior art usually using the temperature of refrigerating device external environment directly as the temperature of heat insulating member outer surface, or utilize the temperature of temperature sensor direct-detection heat insulating member outer surface.But in fact outside heat insulating member, the temperature of environment is not identical with the temperature of heat insulating member outer surface; And present inventor finds that the temperature of heat insulating member outer surface can not directly be obtained by device measurement, is difficult in other words be measured by device obtain exactly.In dewing-proof method of the present invention, calculate the temperature of heat insulating member outer surface according to the coefficient of heat insulation of the temperature of refrigerating device external environment and the temperature of refrigerating device interior and heat insulating member, thus the temperature of thermal part outer surface can be obtained.In the dewing-proof method of the embodiment of the present invention, the geographical location information residing for refrigerating equipment and the season information belonging to current time is obtained, the temperature T of the season information determination refrigerating device external environment belonging to this geographical location information and current time by remote server 1, the device such as sensor, thermometer can be utilized accurately to gather the temperature T of refrigerating device interior 2; According to T 1and T 2easy acquisition h 1and h 2; For heat insulating member; λ is constant; δ can be obtained by simple measurement.That is, the present invention draws the temperature of heat insulating member outer surface in the mode calculated by two temperature datas.
In some embodiments of the invention, step S112 can comprise: the size comparing the temperature of dew-point temperature and heat insulating member outer surface; If dew-point temperature is greater than the temperature of heat insulating member outer surface, then judge that heat insulating member has condensation risk.Otherwise, judge that heat insulating member does not have condensation risk, wouldn't anti-condensation process be carried out.
In some embodiments of the invention, step S114 can comprise the heater starting and be positioned on heat insulating member, so that the temperature of heat insulating member outer surface is increased to dew-point temperature.That is, the heat insulating member of refrigerating equipment is provided with the heater it being carried out to homogeneous heating, when heat insulating member has condensation risk, starts heater and heat insulating member is heated, until the temperature of heat insulating member is increased to dew-point temperature.
In the further embodiment of the present invention, the heating power of heater is adjustable, and step S114 also can comprise the difference according to dew-point temperature and heat insulating member hull-skin temperature, and heater is heated heat insulating member with corresponding heating power.Particularly, when the difference of dew-point temperature and heat insulating member hull-skin temperature is higher, such as, when this difference is between 2-5 DEG C, then shows the condensation risk of heat insulating member higher (or forming condensation), heater can be made to heat heat insulating member with maximum heating power; When the difference of dew-point temperature and heat insulating member hull-skin temperature is general, such as, when this difference is between 1-2 DEG C, then shows that the condensation risk of heat insulating member is general, heater can be made to heat heat insulating member with moderate heat power; When the difference of dew-point temperature and heat insulating member hull-skin temperature is lower, such as, when this difference is between 0-1 DEG C, then shows that the condensation risk of heat insulating member is lower, heater can be made to heat heat insulating member with minimum heating power.As can be seen here, dewing-proof method of the present invention can, according to the difference of dew-point temperature and heat insulating member hull-skin temperature, make heater heat heat insulating member with corresponding heating power.Thus can prevent from, when the difference of dew-point temperature and heat insulating member hull-skin temperature is less, to heat insulating member superheated, bringing excessive adverse effect to the refrigeration performance of refrigerating equipment; And when the difference of dew-point temperature and heat insulating member hull-skin temperature is larger, with relatively high power, heat insulating member is heated, thus fast the temperature of heat insulating member outer surface is risen to dew-point temperature.
In other embodiments of the present invention, step S114 also can comprise: make the temperature of heat insulating member outer surface remain on dew-point temperature or higher than dew-point temperature one temperature gap.This temperature gap can be and presets, such as, be 1 DEG C, 2 DEG C or 3 DEG C etc.
In dewing-proof method of the present invention, startup heater make the temperature of heat insulating member outer surface remain on dew-point temperature or higher than dew-point temperature one temperature gap during, step S104 can be returned, again the geographical location information residing for refrigerating equipment and the season information belonging to current time is obtained, to obtain the temperature and humidity of refrigerating device external environment, and regain the temperature of refrigerating device interior, until the temperature and humidity of the refrigerating device external environment again obtained, and when in the temperature of inside, at least one value changes, recalculate the temperature of dew-point temperature and heat insulating member outer surface, and rejudge heat insulating member and whether have condensation risk, thus intelligence prevents heat insulating member from producing condensation effectively.
In an alternative embodiment, startup heater make the temperature of heat insulating member outer surface remain on dew-point temperature or higher than dew-point temperature one temperature gap during, can the temperature of only Resurvey refrigerating device interior, until when the temperature of the refrigerating device interior again obtained changes, recalculate the temperature of heat insulating member outer surface, and rejudge heat insulating member and whether have condensation risk, thus intelligence prevents heat insulating member from producing condensation effectively.
In embodiments of the present invention, the heat insulating member in refrigerating equipment front, as door body, the entablature between door body and top board, the middle cross beam etc. between door body and door body, the heat insulating member comparing other positions of refrigerating equipment more easily produces condensation, therefore, in embodiments of the present invention, heat insulating member is preferably positioned at the heat insulating member in refrigerating equipment front.
In some embodiments of the invention, send geographical location information and season information request realization with preset time period to remote server by refrigerating equipment from the geographical location information residing for remote server acquisition refrigerating equipment and the season information belonging to current time.In further embodiments, obtaining the geographical location information residing for refrigerating equipment and the season information belonging to current time from remote server is send geographical location information refrigerating equipment residing for preset time period to refrigerating equipment by remote server and the season information belonging to current time realizes.
Fig. 2 is the indicative flowchart of dewing-proof method in accordance with another embodiment of the present invention.As shown in Figure 2, in other embodiments of the present invention, dewing-proof method, between step S102 and step S104, also comprises:
Step S103, sends geographical location information and season information request to remote server.
Remote server receive refrigerating equipment send geographical location information and season information request after, remote server is by network or obtain the geographical location information residing for refrigerating equipment and the season information belonging to current time with the user terminal of refrigerating apparatus bound, and the geographical location information residing for the refrigerating equipment got and the season information belonging to current time are sent to refrigerating equipment.In certain embodiments, remote server is by the geographical location information that receives and season information request forward to the user terminal with this refrigerating apparatus bound, and user terminal sends the geographical location information residing for refrigerating equipment and the season information belonging to current time according to geographical location information and season information request to remote server.
In the dewing-proof method of the embodiment of the present invention, refrigerating equipment can send geographical location information and season information request with a preset time period to remote server.After each transmission geographical location information and season information request, obtain the geographical location information residing for refrigerating equipment and the season information belonging to current time from remote server.
Particularly, in an embodiment as illustrated in figure 2, when step S112 judges that heat insulating member does not have condensation risk, after not carrying out anti-condensation process, step S103 can be returned to step S112, to send geographical location information and season information request to remote server again after preset time period, rejudge and whether have condensation risk.This preset time period can be 1 day, 2 days, 5 days, 10 days, 15 days, 30 days etc.
The temperature of heat insulating member outer surface is made to remain on dew-point temperature in step S114 or higher than during dew-point temperature one temperature gap, step S103 can be returned to step S112, again send geographical location information and season information request to remote server, thus rejudge heat insulating member and whether have condensation risk.
For the ease of accurately obtaining the heat insulating member hull-skin temperature after heating, can (there is no the temperature near heater to rise obviously in the temperature of other positions away from heater) to detect the temperature inside heat insulating member near the inner surface being provided with the position of heater of heat insulating member, thus calculate the hull-skin temperature of the heat insulating member through heating according to formula (4).
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of refrigerating equipment, and it can use the dewing-proof method introduced to prevent the heat insulating member of refrigerating equipment from generating condensation above.Fig. 3 shows the schematic block diagram of refrigerating equipment 100 in accordance with another embodiment of the present invention.As shown in Figure 3, refrigerating equipment 100 comprises: network connecting module 110, data reception module 120, processing module 140, judge module 150 and condensation-preventing device 160.
Network connecting module 110 is connected with the network of remote server for setting up.Data reception module 120 is configured to obtain the geographical location information residing for refrigerating equipment 100 and the season information belonging to current time from remote server.Processing module 140 is configured to the temperature and humidity of the geographical location information residing for refrigerating equipment 100 and the acquisition of the season information belonging to current time refrigerating equipment 100 external environment condition; The dew-point temperature of refrigerating equipment 100 external environment condition is obtained according to the temperature and humidity of refrigerating equipment 100 external environment condition; And according to the coefficient of heat insulation of the temperature of refrigerating equipment 100 external environment condition, the temperature of refrigerating equipment 100 inside and the heat insulating member of refrigerating equipment 100, obtain the temperature of the heat insulating member outer surface of refrigerating equipment 100.Judge module 150 is configured to judge whether heat insulating member has condensation risk according to the temperature of dew-point temperature and heat insulating member outer surface.Condensation-preventing device 160 is configured to carry out anti-condensation process when heat insulating member has condensation risk to it.
Refrigerating equipment 100 of the present invention can make full use of the network connection system that existing itself and remote server are set up, the geographical location information residing for refrigerating equipment 100 and the season information belonging to current time is obtained from user terminal or remote server, and then the season information belonging to this geographical location information and current time obtains the temperature and humidity of refrigerating equipment 100 external environment condition, and and then obtain the dew-point temperature of refrigerating equipment 100 external environment condition according to this temperature and humidity, to judge whether further to carry out anti-condensation process to refrigerating equipment 100.Refrigerating equipment 100 of the present invention detects the Temperature Humidity Sensor of its ambient temperature and humidity without the need to additionally arranging, saved cost.
Further, refrigerating equipment 100 of the present invention can determine whether to need anti-condensation process according to the hull-skin temperature of the dew-point temperature of its external environment condition and heat insulating member, thus prevents heat insulating member from producing condensation intelligently.Compared with carrying out with heater in prior art the mode that heats according to the fixed cycle, the present invention not only saves energy consumption, also can avoid because the heating refrigeration performance to refrigerating equipment 100 unnecessary to heat insulating member brings adverse effect simultaneously.
In certain embodiments, refrigerating equipment 100 also can comprise data demand module 130, be configured to send geographical location information and season information request, to obtain the geographical location information residing for refrigerating equipment 100 and the season information belonging to current time from remote server with preset time period to remote server.After remote server receives geographical location information and season information request, the geographical location information residing for refrigerating equipment 100 and the season information belonging to current time can be obtained and send it to refrigerating equipment 100.
In certain embodiments, network connecting module 110, data reception module 120, data demand module 130, processing module 140 and judge module 150 accessible site are in the master control borad of refrigerating equipment 100.
In certain embodiments, network connecting module 110 can be WIFI module.Remote server stores the binding relationship information of refrigerating equipment 100 and a user terminal.Remote server can connect from the geographical location information residing for user terminal acquisition refrigerating equipment 100 and the season information belonging to current time via network.
In certain embodiments, refrigerating equipment 100 also can comprise internal temperature acquisition module 170, and it is configured to the temperature gathering refrigerating equipment 100 inside.Internal temperature acquisition module 170 can comprise the temperature sensor being arranged on refrigerating equipment 100 inside.Internal temperature acquisition module 170 also can be configured to the temperature obtaining refrigerating equipment 100 inside according to the gear of the temperature controller of refrigerating equipment 100.In such embodiments, internal temperature acquisition module 170 is arranged on the temperature sensor of refrigerating equipment 100 inside without the need to comprising, but by being electrically connected with the temperature controller of refrigerating equipment 100 gear obtaining temperature controller, thus obtain the temperature of refrigerating equipment 100 inside corresponding to this gear.
The temperature that internal temperature acquisition module 170 is also configured to refrigerating equipment 100 inside got is sent to processing module 140.Data reception module 120 is also configured to the geographical location information residing for the refrigerating equipment 100 obtained from remote server and the season information belonging to current time to be sent to processing module 140.The geographical location information that processing module 140 provides according to data reception module 120 and the season information belonging to current time obtain the temperature and humidity of refrigerating equipment 100 external environment condition, and the temperature of the data acquisition dew-point temperature provided according to temperature and humidity and the internal temperature acquisition module 170 of refrigerating equipment 100 external environment condition and heat insulating member outer surface, and send it to judge module 150.When according to the temperature of dew-point temperature and heat insulating member outer surface, judge module 150 judges that heat insulating member has a condensation risk, an enabled instruction can be sent to condensation-preventing device 160, start to make condensation-preventing device 160.
In certain embodiments, can be previously stored with the temperature and humidity information corresponding with geographical location information and season information in processing module 140, the geographical location information residing for refrigerating equipment 100 and the season information belonging to current time directly can obtain the temperature and humidity of refrigerating equipment 100 external environment condition.Or processing module 140 is connected with the module or equipment storing the temperature and humidity information corresponding with season information with geographical location information, with the temperature and humidity making processing module 140 can inquire its correspondence according to geographical location information and season information in this module or equipment, thus as the temperature and humidity of refrigerating equipment 100 external environment condition.
In certain embodiments, also psychrometric chart can be previously stored with in processing module 140, or processing module 140 is connected with the module or equipment storing psychrometric chart, with the dew-point temperature making processing module 140 can inquire its correspondence according to temperature and humidity in psychrometric chart, thus the dew-point temperature of its correspondence can be obtained according to the temperature and humidity of refrigerating equipment 100 external environment condition.In further embodiments, the calculating formula that with good grounds temperature and humidity calculates dew-point temperature can also be prestored in processing module 140, with the dew-point temperature making processing module 140 can calculate its correspondence according to temperature and humidity.Also thickness and the coefficient of heat insulation of heat insulating member can be previously stored with in processing module 140, and according to the calculating formula of both sides temperature, coefficient of heat insulation and THICKNESS CALCULATION heat insulating member hull-skin temperature inside and outside heat insulating member, to make processing module 140 can according to the hull-skin temperature of temperature computation heat insulating member in both sides inside and outside heat insulating member.
In certain embodiments, condensation-preventing device 160 can comprise the heater 162 be positioned on heat insulating member, is configured to, when heat insulating member has condensation risk, the temperature of heat insulating member outer surface is increased to its dew-point temperature.After condensation-preventing device 160 receives the enabled instruction of judge module 150 transmission, heater 162 can be opened.
Heater 162 can comprise the heater strip that employing Electric heating carries out heating.Especially, heater 162 comprises multisection type heater strip, and multisection type heater strip is generally multistage heating silk (having spacing between every section of heater strip) and links together with the form of connecting.Multisection type heater strip can be arranged in the zones of different place of heat insulating member inner surface, with more even to the heating of heat insulating member.Heater 162 also can comprise multiple independent heater strip controlled.In such embodiments, by controlling the heating wire works of varying number thus realizing changing the heating power of heater 162.Thus refrigerating equipment 100 of the present invention can be made according to the difference of dew-point temperature and heat insulating member hull-skin temperature, heater 162 to be heated to heat insulating member with corresponding heating power.
It will be understood by those skilled in the art that refrigerating equipment 100 involved in the present invention can for refrigerator, refrigerator-freezer, cold-storage jar or other there is the equipment of refrigerating function.
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of anti-condensation system for refrigerating equipment 100, and it can use the dewing-proof method introduced to prevent the heat insulating member of refrigerating equipment 100 from generating condensation above.As shown in Figure 4, the anti-condensation system 10 of the embodiment of the present invention comprises remote server 200, user terminal 300 and the refrigerating equipment 100 (as shown in Figure 3) introduced above.
Remote server 200 is set up network with user terminal 300 and refrigerating equipment 100 respectively and is connected, and is configured to obtain the geographical location information residing for refrigerating equipment 100 and the season information belonging to current time from user terminal 300.Refrigerating equipment 100 is configured to obtain the geographical location information residing for refrigerating equipment 100 and the season information belonging to current time from remote server 200.
In certain embodiments, refrigerating equipment 100 is also configured to send geographical location information and season information request with preset time period to remote server 200.Remote server 200 also can be configured to: store the binding relationship information between user terminal 300 and refrigerating equipment 100, and by the geographical location information that sends from refrigeration freezing equipment 100 and season information request forward to user terminal 300.User terminal 300 is configured to send the geographical location information residing for refrigerating equipment 100 and the season information belonging to current time according to geographical location information and season information request to remote server 200.
User terminal 300 after the geographical location information receiving remote server 200 forwarding and season information request, can search for the season information belonging to the on-site geographical location information of refrigerating equipment and current time from network; Or from user terminal install as ink marks weather or drip to call a taxi and wait APP acquisition refrigerating equipment on-site geographical location information, by calling its built-in date data storehouse or obtaining current date and time information from other APP, and inquire about its season information belonging to current time in a network according to this geographical location information.Certainly, the possibility setting manually or manually input refrigerating device geographical location information and the season information belonging to current time is not got rid of yet.User terminal can be sent to remote server after obtaining refrigerating device geographical location information and the season information belonging to current time.
So far, those skilled in the art will recognize that, although multiple exemplary embodiment of the present invention is illustrate and described herein detailed, but, without departing from the spirit and scope of the present invention, still can directly determine or derive other modification many or amendment of meeting the principle of the invention according to content disclosed by the invention.Therefore, scope of the present invention should be understood and regard as and cover all these other modification or amendments.

Claims (22)

1., for a dewing-proof method for refrigerating equipment, comprising:
Set up network with remote server to be connected;
The geographical location information residing for described refrigerating equipment and the season information belonging to current time is obtained from described remote server;
Geographical location information residing for described refrigerating equipment and the season information belonging to current time obtain the temperature and humidity of described refrigerating device external environment;
The dew-point temperature of described refrigerating device external environment is obtained according to the temperature and humidity of described refrigerating device external environment;
According to the coefficient of heat insulation of the heat insulating member of the temperature of described refrigerating device external environment, the temperature of described refrigerating device interior and described refrigerating equipment, obtain the temperature of described heat insulating member outer surface;
Temperature according to described dew-point temperature and described heat insulating member outer surface judges whether described heat insulating member has condensation risk;
When judging that described heat insulating member has condensation risk, carry out anti-condensation process.
2. dewing-proof method according to claim 1, wherein obtains the temperature of described heat insulating member outer surface by following formula:
T f = T 1 - T 1 - T 2 h 2 ( 1 h 1 + 1 h 2 + &delta; &lambda; )
Wherein, T frepresent the temperature of described heat insulating member outer surface, T 1represent the temperature of described refrigerating device external environment, T 2represent the temperature of described refrigerating device interior, h 1represent the coefficient of heat insulation of described refrigerating device interior air and described heat insulating member inner surface, h 2represent the air of described refrigerating device external environment and the coefficient of heat insulation of described heat insulating member outer surface, δ represents the thickness of described heat insulating member, and λ represents the coefficient of heat insulation of described heat insulating member.
3. dewing-proof method according to claim 1, wherein comprises according to the dew-point temperature that the temperature and humidity of described refrigerating device external environment obtains described refrigerating device external environment:
In psychrometric chart, search the dew-point temperature corresponding with the temperature and humidity of described refrigerating device external environment, thus obtain the dew-point temperature of described refrigerating device external environment.
4. according to the temperature of described dew-point temperature and described heat insulating member outer surface, dewing-proof method according to claim 1, wherein judges whether described heat insulating member has condensation risk to comprise:
The size of the temperature of more described dew-point temperature and described heat insulating member outer surface;
If described dew-point temperature is greater than the temperature of described heat insulating member outer surface, then judge that described heat insulating member has condensation risk.
5. dewing-proof method according to claim 4, wherein said anti-condensation process comprises:
Start the heater be positioned on described heat insulating member, so that the temperature of described heat insulating member outer surface is increased to described dew-point temperature.
6. dewing-proof method according to claim 5, wherein said anti-condensation process also comprises:
According to the difference of described dew-point temperature and described heat insulating member hull-skin temperature, described heater is heated to described heat insulating member with corresponding heating power.
7. dewing-proof method according to claim 5, also comprises in described anti-condensation process:
The temperature of described heat insulating member outer surface is made to remain on described dew-point temperature or higher than described dew-point temperature one temperature gap.
8. dewing-proof method according to claim 1, wherein
Described remote server stores the binding relationship information of described refrigerating equipment and a user terminal;
Described remote server obtains the geographical location information residing for described refrigerating equipment and the season information belonging to current time via network connection from described user terminal.
9. dewing-proof method according to claim 1, wherein
Be provided with WIFI module in described refrigerating equipment, described refrigerating equipment is set up network by described WIFI module with described remote server and is connected.
10. dewing-proof method according to claim 1, wherein
Obtain the geographical location information residing for described refrigerating equipment and the season information belonging to current time from described remote server and send geographical location information with preset time period to described remote server by described refrigerating equipment and season information request realizes.
11. dewing-proof methods according to claim 1, also comprised before the temperature obtaining described heat insulating member outer surface:
Gather the temperature of described refrigerating device interior or obtain the temperature of described refrigerating device interior according to the gear of the temperature controller of described refrigerating equipment.
12. dewing-proof methods according to claim 1, wherein said heat insulating member is the heat insulating member being positioned at described refrigerating equipment front.
13. 1 kinds of refrigerating equipment, comprising:
Network connecting module, is connected with the network of remote server for setting up;
Data reception module, is configured to obtain the geographical location information residing for described refrigerating equipment and the season information belonging to current time from described remote server;
Processing module, is configured to the temperature and humidity that the geographical location information residing for described refrigerating equipment and the season information belonging to current time obtain described refrigerating device external environment; The dew-point temperature of described refrigerating device external environment is obtained according to the temperature and humidity of described refrigerating device external environment; And the coefficient of heat insulation of heat insulating member according to the temperature of described refrigerating device external environment, the temperature of described refrigerating device interior and described refrigerating equipment, obtain the temperature of the heat insulating member outer surface of described refrigerating equipment;
Judge module, is configured to judge whether described heat insulating member has condensation risk according to the temperature of described dew-point temperature and described heat insulating member outer surface; And
Condensation-preventing device, is configured to carry out anti-condensation process when described heat insulating member has condensation risk to it.
14. refrigerating equipment according to claim 13, also comprise:
Internal temperature acquisition module, is configured to:
Gather the temperature of described refrigerating device interior or obtain the temperature of described refrigerating device interior according to the gear of the temperature controller of described refrigerating equipment.
15. refrigerating equipment according to claim 14, wherein
Described internal temperature acquisition module comprises the temperature sensor being arranged on described refrigerating device interior.
16. refrigerating equipment according to claim 13, wherein
Described condensation-preventing device comprises the heater be positioned on described heat insulating member, is configured to, when described heat insulating member has condensation risk, the temperature of described heat insulating member outer surface is increased to described dew-point temperature.
17. refrigerating equipment according to claim 16, wherein
Described heater comprises multisection type heater strip or multiple independent heater strip controlled.
18. refrigerating equipment according to claim 13, wherein said heat insulating member is the heat insulating member being positioned at described refrigerating equipment front.
19. refrigerating equipment according to claim 13, also comprise:
Data demand module, be configured to send geographical location information and season information request, to obtain the geographical location information residing for described refrigerating equipment and the season information belonging to current time from described remote server with preset time period to described remote server.
20. refrigerating equipment according to claim 13, wherein
Described remote server stores the binding relationship information of described refrigerating equipment and a user terminal;
Described remote server obtains the geographical location information residing for described refrigerating equipment and the season information belonging to current time via network connection from described user terminal.
21. 1 kinds, for the anti-condensation system of refrigerating equipment, comprising: remote server, user terminal and the refrigerating equipment according to any one of claim 13-20, wherein
Described remote server is set up network with described user terminal and described refrigerating equipment respectively and is connected, and is configured to obtain the geographical location information residing for described refrigerating equipment and the season information belonging to current time from described user terminal;
Described refrigerating Equipments Setting becomes to obtain the geographical location information residing for described refrigerating equipment and the season information belonging to current time from described remote server.
22. anti-condensation systems according to claim 21, wherein
Described refrigerating equipment is also configured to send geographical location information and season information request with preset time period to described remote server;
Described remote server is also configured to: store the binding relationship information between described user terminal and described refrigerating equipment, and by the geographical location information that sends from described refrigerating equipment and season information request forward to described user terminal;
Described user terminal is also configured to: according to described geographical location information and season information request, sends the geographical location information residing for described refrigerating equipment and the season information belonging to current time to described remote server.
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