Background technology
Because indoor temperature is more much lower than the ambient temperature of placing refrigerator usually between refrigerator, refrigerator doors and doorframe contact position produce condensation through regular meeting, the user is used cause harmful effect.
Contact the condensation dew that the place produces with doorframe for solving refrigerator doors, normally in the interlayer of doorframe, be provided with anti-condensation device.As shown in Figure 1, the schematic diagram that has the refrigeration system of anti-condensation device for tradition.During refrigeration, cold-producing medium passes through condenser 120, anti-condensation device 150, device for drying and filtering 160, throttling arrangement 130 and evaporimeter 140 successively from compressor 110, and cold-producing medium flows back to compressor 110 after by endothermic gasification and realizes kind of refrigeration cycle.Yet, increase anti-condensation device after, the corresponding increase of the cost of refrigerator and energy consumption.
Therefore, especially refrigerating box of part refrigerator is arranged also,, anti-condensation device usually is not set, as shown in Figure 2, do not have the schematic diagram of the refrigeration system of anti-condensation device for tradition in order to control cost and to cut down the consumption of energy.During refrigeration, cold-producing medium passes through condenser 120, device for drying and filtering 250, throttling arrangement 230 and evaporimeter 240 successively from compressor 210, and cold-producing medium flows back to compressor 210 after by endothermic gasification and realizes kind of refrigeration cycle.But, this refrigeration system under high humidity environment, work (for example plum rain season or coastal area) be prone to condensation, cause refrigerator quality problems to occur.
Wherein, whether condensation is main relevant with two factors for refrigerator, be tank surface temperature and outside air relative humidity, for most users, the most of the time refrigerator is in non-high humidity environment (relative humidity is not more than 70%RH) work down, under this kind environment, refrigerator (particularly refrigerating box) generally can not produce the condensation phenomenon.Because it is anti-condensation that traditional refrigeration system that has anti-condensation device also can be carried out, therefore can cause the waste of resource under non-high humidity environment.
The utility model content
The purpose of this utility model is intended to solve at least one of above-mentioned technological deficiency.
For this reason, the purpose of this utility model is to propose a kind of refrigeration system that can open and close anti-condensation device as required.
Another purpose of the present utility model is to propose a kind of refrigerator with above-mentioned refrigeration system.
To achieve these goals, the embodiment of an aspect of the utility model proposes a kind of refrigeration system and comprises: compressor; Condenser, the inlet of described condenser links to each other with the outlet of described compressor; Switch unit, described switch unit have inlet and first outlet and second outlet, and the inlet of described switch unit links to each other with the outlet of described condenser; Anti-condensation device, the inlet of described anti-condensation device links to each other with first outlet of described switch unit; Throttling arrangement; Evaporimeter, the inlet of described evaporimeter links to each other with the outlet of described anti-condensation device with second outlet of described switch unit respectively by described throttling arrangement, and the outlet of described evaporimeter links to each other with the inlet of described compressor; And controller, described controller links to each other with described switch unit, is used to control described switch unit and switches between described first outlet and second outlet.
Refrigeration system according to the utility model embodiment, controller control switch unit switches between first and second outlet, thereby anti-condensation device is started or close, the condensation phenomenon appears easily under the situation of ambient temperature height or outside air high humidity, at this moment, controller control switch unit switches to first and exports so that cold-producing medium is flowed through successively compressor, condenser, anti-condensation device, capillary and evaporimeter, return compressor by evaporimeter again, cold-producing medium has prevented the appearance of condensation when flowing through anti-condensation the device.Relatively low and air humidity relatively hour should not produce condensation and manifests and in ambient temperature, controller control switch unit switches to second and exports so that cold-producing medium is not flowed through anti-condensation device, anti-condensation device needs more energy consumption because cold-producing medium is flowed through, and the heat that produces increases internal temperature of refrigerator, has strengthened the load of refrigerator.So hour close that anti-condensation device not only prevents because the refrigerator quality problems that condensation brought in low temperature or humidity, and saved energy consumption, reduce the load of refrigerator.
In an embodiment of the present utility model, be provided with device for drying and filtering between described throttling arrangement and the described switch unit and between described throttling arrangement and the described anti-condensation device.
In an embodiment of the present utility model, described switch unit is a two-position three way magnetic valve.
In an embodiment of the present utility model, described anti-condensation device is a dew eliminating tube.
In an embodiment of the present utility model, described throttling arrangement is a capillary.
The embodiment of the utility model second aspect proposes a kind of refrigerator, comprising: casing is limited with at least one case chamber in the described casing; Chamber door, described chamber door are installed in and are used for described at least one the case chamber of switch on the described casing; Refrigeration system, described refrigeration system are according to the described refrigeration system of the utility model first aspect embodiment, and described refrigeration system is used for being freezed in described at least one case chamber; And control panel, described control panel is used to receive user instruction and switches between first and second outlets to control described switch unit by the controller of described refrigeration system.
Refrigerator according to the utility model embodiment, the user judges according to external environment whether refrigerator the condensation phenomenon occurs, sending controling instruction is given control panel when condensation appears in judgement, control panel switches to first outlet to open anti-condensation device, the appearance of having avoided condensation to manifest by the controller control switch unit that is attached thereto.Otherwise, control panel switches to second by the controller control switch unit that is attached thereto and exports so that cold-producing medium is not flowed through anti-condensation device, thereby reduced energy consumption, generation produces certain heat to refrigerator case chamber during anti-condensation device because cold-producing medium is flowed through, increase the refrigerator load, therefore, can also reduce the load of refrigerator.
In an embodiment of the present utility model, described control panel is arranged on the back timber of inboard or described refrigerator of described casing.
In an embodiment of the present utility model, described control panel is low energy consumption/high performance control switch.
Aspect that the utility model is additional and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
The specific embodiment
Describe whole embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Below by the embodiment that is described with reference to the drawings is exemplary, only is used to explain the utility model, and can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only are used to describe purpose, and can not be interpreted as indication or hint relative importance.
In description of the present utility model, need to prove, unless otherwise prescribed and limit, term " installation ", " linking to each other ", " connection " should be done broad understanding, for example, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be directly to link to each other, and also can link to each other indirectly by intermediary, for the ordinary skill in the art, can understand the concrete implication of above-mentioned term as the case may be.
Below with reference to accompanying drawing 3 refrigeration system according to the utility model embodiment is described at first.
As shown in Figure 3, be the schematic diagram of the refrigeration system of an embodiment of the utility model.Refrigeration system 300 according to the utility model embodiment comprises compressor 310, condenser 320, switch unit 330, anti-condensation device 340, throttling arrangement 350, evaporimeter 360 and controller (not shown).
Wherein, the inlet of condenser 320 links to each other with the outlet of compressor 310.Switch unit 330 has inlet and the first outlet A and the second outlet B, and the inlet of switch unit 330 links to each other with the outlet of condenser 320.The inlet of anti-condensation device 340 links to each other with the first outlet A of switch unit 330.The inlet of evaporimeter 360 links to each other with the second outlet B of switch unit 330 and the outlet of anti-condensation device 340 respectively by throttling arrangement 350.And the outlet of evaporimeter 360 links to each other with the inlet of compressor 310.Controller links to each other with switch unit 330, is used to control switch unit 330 and switches between the first outlet A and the second outlet B.
Refrigeration system 300 according to the utility model embodiment, controller control switch unit 330 switches between the first outlet A and the second outlet B, when switch unit 330 switches to the first outlet A, form first loop by compressor 310, condenser 320, anti-condensation device 340, throttling arrangement 350 and evaporimeter 360.And when switch unit switches to the second outlet B, form second loop by compressor 310, condenser 320, throttling arrangement 350 and evaporimeter 360.
When the external world is in the chamber door of the bigger situation refrigerator of the condition of high temperature or outside air humidity and condensation appears in the contact position of doorframe easily, at this moment, controller control switch unit 330 switches to the first outlet A so that cold-producing medium circulates in first loop, thereby make the cold-producing medium anti-condensation device 340 of flowing through, avoid the chamber door of refrigerator and the contact position condensation of doorframe, prevent that quality problems from appearring in refrigerator, increases the service life.On the contrary, when being in relative low temperature or air humidity, the external world relatively hour should not produce condensation, controller control switch unit 330 switches to the second outlet B so that cold-producing medium circulates in second loop, because the cold-producing medium anti-condensation device 340 of flowing through needs energy consumption, so cold-producing medium circulates in second loop and has reduced energy consumption.In addition, the refrigeration system 300 of the utility model embodiment is controlled switch unit 330 as required arbitrarily and is switched between the B at the first outlet A and second outlet, both prevented under hot environment or air humidity produces condensation when big and manifests, can when being difficult for producing the condensation phenomenon, reduce energy consumption of refrigerator again, and the cold-producing medium heat that anti-condensation device 340 produces of flowing through increases internal temperature of refrigerator, the load that adds large refrigerator is so cold-producing medium circulation time in second loop can also reduce the load of refrigerator.
In an embodiment of the present utility model, sensor can be set to detect extraneous temperature or extraneous humidity on refrigerator, this sensor links to each other with controller, to be sent to controller after the signal process AD conversion that detect, then controller compares according to the detected value of sensor and default threshold value, if be higher than described threshold value then judge extraneous the be condition of high temperature or high humility state.
As shown in Figure 3, in preferred embodiments more of the present utility model, refrigeration system 300 also comprises device for drying and filtering 370, and device for drying and filtering 370 is arranged between throttling arrangement 350 and the switch unit 330 and between throttling arrangement 350 and the anti-condensation device 340.Cold-producing medium can produce impurity such as moisture, pressed powder, dirt in running, and throttling arrangement 350 is stopped up.Therefore, impurity such as the moisture that contains in 210 pairs of cold-producing mediums of device for drying and filtering, pressed powder, dirt being set before cold-producing medium is flowed through throttling arrangement 350 filters.According to the device for drying and filtering 370 of the utility model embodiment, prevent on the one hand the obstruction of throttling arrangement 350, in addition, the moisture that device for drying and filtering 370 can the absorption refrigeration agent makes refrigeration better.
In preferred embodiments more of the present utility model, switch unit 330 for example is a two-position three way magnetic valve.When two-position three way magnetic valve is opened first outlet during A, the cold-producing medium anti-condensation device 340 of flowing through prevents condensation, when two-position three way magnetic valve open the second outlet B time, the cold-producing medium anti-condensation device 340 of not flowing through.In preferred embodiment of the present utility model, adopt two-position three way magnetic valve, have the outlet accurate positioning, switch the advantage simple, that controllability is strong.In addition, two-position three way magnetic valve is cheap, long service life.
In preferred embodiments more of the present utility model, anti-condensation device 340 for example is a dew eliminating tube.Therefore dew eliminating tube good toughness, flexible and high temperature resistant can better be arranged on the contact position of the chamber door and the doorframe of refrigerator, and according to self characteristics, have the advantage of long service life.In addition, dew eliminating tube is cheap, easily buying.
In preferred embodiments more of the present utility model, throttling arrangement 350 for example is a capillary.Capillary is that the metal or the plastic material of tiny tubulose is made, and it is low to have a cost, processes simple advantage.In addition, two ends capillaceous are connected closely with other parts, are difficult for leaking.
By the refrigeration system of the utility model embodiment, can switch arbitrarily the outlet of switch unit according to external environment, when condensation occurring, switch unit switches to the first outlet A and makes anti-condensation device operation, prevents that condensation from occurring.And be not prone under the situation of condensation, because the operation of anti-condensation device increases energy consumption, so the refrigeration system of the utility model embodiment can switch to switch unit the second outlet B to stop the operation of anti-condensation device, reaches the purpose that cuts down the consumption of energy.In addition,, the refrigerator cooling load is improved, therefore close the load that anti-condensation device can also reduce refrigerator because cold-producing medium is flowed through anti-condensation device to the indoor generation heat of refrigerator case.And increasing the obstruction that device for drying and filtering can prevent throttling arrangement, moisture that can also the absorption refrigeration agent improves the cold-producing medium refrigeration, adopts capillary as throttling arrangement, connects simple and reduces cost.
The refrigerator with above-mentioned refrigeration system of the utility model embodiment is below described.
Refrigerator according to the utility model embodiment comprises casing, chamber door, refrigeration system and control panel.
Wherein, in conjunction with Fig. 3, be limited with at least one case chamber in the above-mentioned casing.Chamber door is installed in and is used for described at least one the case chamber of switch on the described casing.Refrigeration system is that the refrigeration that above-mentioned the utility model embodiment proposes is 300, and refrigeration system 300 is used for described at least one case chamber refrigeration.Control panel is used to receive user instruction and switches between the first outlet A and the second outlet B with the controller control switch unit 330 by refrigeration system.
Refrigerator according to the utility model embodiment proposition, when this refrigerator work, the user can regulate control panel according to ambient temperature and humidity, when the user judges that ambient temperature and humidity easily produce condensation to refrigerator, the adjusting control panel switches to the first outlet A with the transmission corresponding instruction by controller control switch unit 330 and manifests appearance to prevent condensation, at this moment, the energy consumption of refrigerator is higher relatively.When the user judges that ambient temperature and humidity easily are difficult for producing condensation to refrigerator,, switch to the second outlet B to reduce energy consumption by controller control switch unit 330 by regulating control panel transmission corresponding instruction in order to cut down the consumption of energy.In addition, the operation of anti-condensation device 340 increases the indoor temperature of refrigerator case, thereby increases the cooling load of refrigerator, so, switch to the second outlet B and make the cold-producing medium anti-condensation device of not flowing through, reduce the cooling load of refrigerator.
In preferred embodiments more of the present utility model, control panel for example is low energy consumption/high performance control switch.When the user judges that external environment is difficult for refrigerator generation condensation, gauge tap is switched to the low energy consumption position.On the contrary, when condensation occurring easily, gauge tap is switched to high performance switch so that cold-producing medium is flowed through anti-condensation device 340, thus prevent that condensation from occurring, prolong refrigerator service life.
By the refrigerator that the utility model embodiment proposes, the user can freely control the mode of operation of refrigerator according to external environment, not only can prevent the ill effect that the refrigerator condensation is brought, and can also reduce the energy consumption of refrigerator, reduces the cooling load of refrigerator.
Although illustrated and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that under the situation that does not break away from principle of the present utility model and spirit and can carry out multiple variation, modification, replacement and modification that scope of the present utility model is by claims and be equal to and limit to these embodiment.