CN101963422A - Refrigerating device - Google Patents
Refrigerating device Download PDFInfo
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- CN101963422A CN101963422A CN 201010506658 CN201010506658A CN101963422A CN 101963422 A CN101963422 A CN 101963422A CN 201010506658 CN201010506658 CN 201010506658 CN 201010506658 A CN201010506658 A CN 201010506658A CN 101963422 A CN101963422 A CN 101963422A
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- return
- air heat
- refrigerating
- refrigerating chamber
- heat exchange
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Abstract
The invention discloses a refrigerating device. The refrigerating device comprises a box, a box door and a return air heat exchange part, wherein the front side of the box is provided with an opening; the box is provided with a box shell and a box lining arranged in the box shell; a refrigerating chamber is defined in the box lining; the box door is arranged on the box for opening or closing the opening; the return air heat exchange part is formed by a capillary pipe and an air return pipe which are arranged in parallel; and the return air heat exchange part comprises a first return air heat exchange section which is arranged on the rear side of the box and positioned between the outer wall of the box lining of the refrigerating chamber and the inner wall of the box shell. The refrigerating device in the embodiment of the invention can improve the temperature field distribution in the refrigerating chamber, the efficiency of the refrigerating system and the energy consumption of a refrigerator.
Description
Technical field
The present invention relates to field of domestic appliances manufacture technology, particularly relate to a kind of refrigerating plant.
Background technology
In traditional direct-cooling type refrigerating plant since in the refrigerator body because of door sealing structure causes envelope place load bigger, thereby higher and inboard lower in the refrigerating chamber near the back board part temperature near the peristome temperature.In addition, cold is easy to sink under the box height condition with higher, thereby causes the bottom half temperature lower and head temperature is higher.All can cause temperature field inequality in the refrigerating chamber in the above two kinds of cases.
And in order to satisfy the quality requirements of freezing preservation, the temperature that then need guarantee opening portion and refrigerating chamber top section then must cause cold surplus, the refrigerating efficiency of back board part or base section low, problem such as energy consumption height below predetermined temperature thus.
Summary of the invention
The present invention is intended to solve at least one of technical problem that exists in the prior art.For this reason, the object of the present invention is to provide a kind of refrigerating plant that the temperature field relatively evenly in the casing, refrigerating efficiency is high and energy consumption is low that has.
Refrigerating plant according to the embodiment of the invention comprises: casing, and the front side of described casing is provided with opening, and described casing has the case shell and be arranged on case courage in the described case shell, is limited with refrigerating chamber in the described case courage; Chamber door, described chamber door are installed in and are used on the casing open or closed described opening; And return-air heat exchange portion, described return-air heat exchange portion is formed by juxtaposed capillary and muffler, wherein said return-air heat exchange portion comprises the first return-air heat exchanging segment, and the described first return-air heat exchanging segment is arranged at the casing rear side, and between the case gall bladder wall and described case shell inwall of described refrigerating chamber part.
According to the refrigerating plant of the embodiment of the invention,, can improve temperature field distribution in the refrigerating chamber by the case courage and the first return-air heat exchanging segment between the case shell that is arranged at refrigerating chamber part.In addition, can be effectively the cold of gas in the muffler be passed to the while capillaceous by heat exchange by this return-air heat exchanging segment, the superfluous cold that also can effectively utilize case courage part increases degree of supercooling capillaceous, thereby improves refrigeration system efficient, improve the energy consumption of refrigerator.
In addition, refrigerating plant according to the above embodiment of the present invention can also have following additional technical characterictic:
According to one embodiment of present invention, the described first return-air heat exchanging segment is attached on the case gall bladder wall of described refrigerating chamber correspondence by the heat conduction adhesive tape.
According to one embodiment of present invention, the described first return-air heat exchanging segment can form corrugated.
According to another embodiment of the invention, the described first return-air heat exchanging segment coils a circle at least by juxtaposed described capillary and described muffler and forms.
According to one embodiment of present invention, also be limited with refrigerating chamber in the described case courage, the adjacent setting of described refrigerating chamber with described refrigerating chamber, described return-air heat exchange portion also comprises the second return-air heat exchanging segment, the described second return-air heat exchanging segment is fixed on the case courage of described refrigerating chamber part by support, so that the case courage of described second return-air heat exchanging segment and described refrigerating chamber part keeps certain intervals.Described cool room comprises refrigerating chamber, and described return-air heat exchange portion comprises the first return-air heat exchange portion, and the described first return-air heat exchange portion is fixed on the case gall bladder wall of described refrigerating chamber correspondence by the heat conduction adhesive tape.
According to one embodiment of present invention, described return-air heat exchange portion is by forming one by welding between described capillary and the described muffler.
According to another embodiment of the invention, described return-air heat exchange portion is by being wrapped to form one by aluminium foil between described capillary and the described muffler.
Additional aspect of the present invention and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and easily understanding becoming the description of embodiment in conjunction with following accompanying drawing, wherein:
Fig. 1 is the partial structurtes schematic diagram according to the refrigerating plant of the embodiment of the invention;
Fig. 2 is the schematic diagram of an example of return-air heat exchanging segment in the refrigerating plant shown in Figure 1;
Fig. 3 is the schematic diagram of another example of return-air heat exchanging segment in the refrigerating plant shown in Figure 1;
Fig. 4 is the schematic diagram of another example of return-air heat exchanging segment in the refrigerating plant shown in Figure 1.
The specific embodiment
Describe embodiments of the invention 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 present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, term " vertically ", " laterally ", " on ", close the orientation of indications such as D score, " preceding ", " back ", " left side ", " right side ", " vertically ", " level ", " top ", " end " or position is based on orientation shown in the drawings or position relation, only be the present invention for convenience of description rather than require the present invention therefore can not be interpreted as limitation of the present invention with specific orientation structure and operation.
Below with reference to Fig. 1～Fig. 4 refrigerating plant is according to an embodiment of the invention described.
According to the refrigerating plant 100 of the embodiment of the invention, comprise casing 110, chamber door 120 and return-air heat exchange portion.
Wherein, be provided with opening, and described casing 110 has case shell 111 and be arranged on case courage 112 in the described case shell 111, be limited with refrigerating chamber 1 in the described case courage in the front side of casing 110 (being the right side among Fig. 1).
In order to prevent that cold air leaks and the intrusion of extraneous hot gas in the casing 110, magnetic door strip of paper used for sealing 113 is housed around the inwall of chamber door 120, rely on the magnetic force of magnetic stripe, make chamber door 120 tightly hold the iron sheet of casing 110.Gasket 113 is with the slivering of soft PVC extrusion molding in the present embodiment, the magnetic adhesive tape is penetrated in the hollow pipe of plastic door strip of paper used for sealing, and four jiaos of heat bondings form.Certainly if satisfy sealing, through the time durability, health standards requirement, gasket 113 concrete employed materials and the method that is adopted do not have special restriction.In addition, can dismantle substantially for the ease of the gasket 113 of cleaning refrigerator.
Return-air heat exchange portion by capillary 131 with muffler 132 and put and form.Return-air heat exchange portion comprises the first return-air heat exchanging segment 130, and this first return-air heat exchanging segment 130 is arranged on the rear side (being the left side among Fig. 1) of casing 110 and between described case courage 112 outer walls and described case shell 111 inwalls of refrigerating chamber 1 part.
Specifically describe the operation principle of the refrigerating plant 100 of the embodiment of the invention below.Need to prove, following description is that the direct-cooling type refrigerating plant is that example describes with described refrigerating plant 100, but the present invention is not limited to this, so long as in the case courage, be limited with all applicable the present invention of the cool room refrigerating plant of refrigerating chamber, such as the two-door refrigerator that comprises refrigerating chamber and refrigerating chamber, comprise all applicable the present invention such as multi-door refrigerator of 3 or above warm area.And for corresponding each distortion, on basis described below, do simple accommodation for the person of ordinary skill of the art and can it easily understand corresponding work principle separately.
In the present embodiment, described refrigerating plant 100 is the direct-cooling type refrigerating plant, and its refrigeration system comprises compressor 20, condenser, device for drying and filtering, capillary 131, evaporimeter and the muffler 132 that connects successively.Refrigeration system utilizes the circulation of cold-producing medium to carry out heat exchange, in the air of transfer of heat outside refrigerating plant 100 in the refrigerating plant 100, reaches the purpose that makes refrigerating plant 100 coolings.Need to prove that because condenser, device for drying and filtering, evaporimeter all adopt conventional parts, it is provided with the position also is that refrigeration plant is made the position that field institute is provided with usually, so omits its diagram in the drawings.
Downstream at compressor 20 is connected with condenser.Condenser is called radiator again, is a kind of heat exchanger of the heat transferred external world with cold-producing medium, and the back that is installed in casing 110 is near the lower end.The effect of condenser is high temperature, the high pressure refrigerant vapor that compressor is discharged, in the transmission that the condenser back warp is crossed heat, air heat radiation towards periphery, make the refrigerant vapour cooling become then in the liquid refrigerant of warm high pressure.In order to make around the doorframe not dewfall, can also be provided with doorframe defrosting pipe (not shown) around the chamber door 120.At this moment, described condenser and described doorframe defrosting pipe constitute condenser system together, and cold-producing medium is further imported the device for drying and filtering in downstream by the doorframe defrosting pipe after the condenser of flowing through.
Outlet at condenser is connected with device for drying and filtering, and is delivered to the capillary step-down behind the refrigerant liquid dry filter with middle temperature high pressure.The device for drying and filtering shell can be copper pipe, and the copper wire screen pack is equipped with at two ends, copper pipe the inside, and molecular sieve is equipped with in the centre.The effect of device for drying and filtering is the moisture in the absorbing refrigeration system, and is stifled to prevent ice, also plays a role in filtering simultaneously, and prevent impurity, mince etc. enters capillary and cause dirty stifled.
In the refrigerant liquid of warm high pressure behind dry filter, be sent to capillary 131, and will be arranged in the warm gases at high pressure step-down gradually that discharge near the condenser of lower end at refrigerating plant 100 backs by capillary 131, and with the refrigerant liquid after the step-down (when the evaporimeter, has had a spot of cold-producing medium to be gasified and be gas, thereby whole refrigerant fluid becomes gas liquid mixture) be transported to the evaporimeter that is positioned at the refrigerating chamber top.Because the heat conductivility of copper pipe is good, capillary 131 is that root hole footpath is very little, the copper tube of the long and polydisc round of length.Liquid refrigerant can be subjected to bigger resistance during by capillary and produce pressure and fall (flow through conductor just as electric current, to produce voltage drop the same because of resistance), thereby has controlled the flow of cold-producing medium and kept the reasonable pressure differential of condenser and evaporimeter.Capillary has two effects: (1) keeps between condenser cold-producing medium and the evaporator refrigerant certain pressure differential being arranged, be condensed into liquid thereby in condenser, have higher pressure that refrigerant vapour is dispelled the heat in condenser, thereby guarantee that simultaneously refrigerant liquid has lower pressure that refrigerant liquid is absorbed heat and flashes to gas in evaporimeter in evaporimeter with the assurance refrigerant vapour; (2) flow of control cold-producing medium, if capillary resistance is big, refrigerant flow is little, and refrigerating capacity is few, and evaporating temperature is low; If capillary resistance is little, refrigerant flow is big, and refrigerating capacity is big, the evaporating temperature height.
After this, the cold-producing medium through the capillary step-down is transported to the evaporimeter that is connected in the capillary other end.Evaporimeter is the cold parts of the product in the refrigerator refrigeration system, is commonly called as low-temperature receiver.The effect of evaporimeter is that evaporation under low pressure becomes gas by liquid after the cold-producing medium after the capillary step-down is entering in the evaporimeter thereby make.Because evaporation needs a large amount of heat, thereby passes through the heat in the evaporimeter respiratory box in this evaporation process, thereby reach the purpose of refrigeration.The evaporating temperature of evaporimeter inner refrigerant is low more, and then refrigeration is good more.
And then, the gaseous refrigerant of low temperature via muffler 132 from the evaporimeter that is positioned at the household freezer top and sent back to the compressor 20 that is positioned at freezer compartment floor.
That is to say,, after with refrigerant vapor compression, discharge high temperature, high pressure refrigerant vapor to the condenser that is connected in compressor 20 from compressor 20 according to the refrigerating plant of present embodiment.The transmission that described high temperature, high pressure refrigerant vapor are crossed heat at the condenser back warp, air heat radiation towards periphery, thereby make the refrigerant vapour cooling and be liquefied as in the liquid of warm high pressure, and export the device for drying and filtering in its downstream to.The capillary 131 that is sent to its downstream after refrigerant liquid drying filter is removed moisture and impurity etc. carries out step-down, thus the liquid of warm low pressure in obtaining, and further be transported to evaporimeter.In evaporimeter, be evaporated to cryogenic gas by absorbing environmental (being the heat in the refrigerating chamber).And the gasiform cold-producing medium of low temperature is sent back to compressor 20 by muffler 132.
Wherein, in capillary 131, the liquid of cold-producing medium warm high pressure from input after step-down gradually in output becomes the liquid or the gas liquid mixture of warm low pressure.From helping improving the angle of refrigerating efficiency, be liquid in the perfect condition of output cold-producing medium, that is to say that the high more refrigeration of liquid proportion is good more in described gas liquid mixture.In order to improve the liquid proportion, can consider to increase the degree of supercooling of capillary 131, promptly capillary 131 is lowered the temperature by outside cooling.And in muffler 132, cold-producing medium is the extremely low cryogenic gas of temperature, if this part gas is directly delivered to compressor 20, then is a kind of great energy waste.Therefore, with capillary 131 with muffler 132 and put and form return-air heat exchange portion, make between capillary 131 and the muffler 132 heat exchange takes place, utilize the cold-producing medium in the cold cooling capillary 131 of cold-producing medium in the muffler 132, can improve refrigerating efficiency, cut down the consumption of energy.
Particularly, in the present embodiment, because the first return-air heat exchanging segment 130 is arranged on the rear side (being the left side among Fig. 1) of casing 110 and between described case courage 112 outer walls and described case shell 111 inwalls of refrigerating chamber 1 part, therefore can utilize the cold of crossing of refrigerating chamber 1 inside part further to cool off capillary 131, thereby can further improve refrigerating efficiency, cut down the consumption of energy.Correspondingly, refrigerating chamber 1 inside part is by temperature increases with capillary 131 heat exchange, because the first return-air heat exchanging segment 130 crosses over whole freezing chamber district from bottom to up, so the crossing cold and also can be utilized effectively of refrigerating chamber 1 bottom part, so the whole temperature field in the refrigerating chamber 1 is more even.
In an example of the present invention, the described first return-air heat exchanging segment 130 is attached on case courage 112 outer walls of described refrigerating chamber 1 correspondence by the heat conduction adhesive tape.Thus, the whole temperature field of can further improve heat exchange efficiency between refrigerating chamber 1 inside part and the first return-air heat exchanging segment 130, more effectively improving in the refrigerating chamber 1 distributes, and further improves refrigerating efficiency, cuts down the consumption of energy.
In examples more of the present invention, as shown in Figures 2 and 3, the first return-air heat exchanging segment 130 forms corrugated.Thus, can increase effective heat exchange length of the first return-air heat exchanging segment 130 and refrigerating chamber 1, thereby improve heat exchange efficiency.Wherein, described corrugated promptly can be as shown in Figure 2 at horizontal Boulez, also can be as shown in Figure 3 Boulez in the vertical.
In another example of the present invention, as shown in Figure 4, the first return-air heat exchanging segment 130 coils a circle at least by juxtaposed capillary 131 and muffler 132 and forms.Thus, simple in structure when satisfying the requirement that improves temperature field distribution in the refrigerating chamber, be convenient to install.
In another example of the present invention, as shown in Figure 1, also be limited with refrigerating chamber 2 in the case courage 112.Refrigerating chamber 2 and refrigerating chamber 1 adjacent setting.Correspondingly, return-air heat exchange portion can also comprise the second return-air heat exchanging segment 140, the second return-air heat exchanging segment 140 is fixed on the case courage of refrigerating chamber part by the support (not shown), so that the case courage 112 of described second return-air heat exchanging segment 140 and refrigerating chamber 2 parts keeps certain intervals.According to this example, can further increase effective heat exchange length, thereby improve heat exchange efficiency.
In the description of this specification, concrete feature, structure, material or characteristics that the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example description are contained at least one embodiment of the present invention or the example.In this manual, the schematic statement to above-mentioned term not necessarily refers to identical embodiment or example.And concrete feature, structure, material or the characteristics of description can be with the suitable manner combination in any one or more embodiment or example.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple variation, modification, replacement and modification to these embodiment under the situation that does not break away from principle of the present invention and aim, scope of the present invention is limited by claim and equivalent thereof.
Claims (7)
1. a refrigerating plant is characterized in that, comprising:
Casing, the front side of described casing is provided with opening, and described casing has the case shell and be arranged on case courage in the described case shell, is limited with refrigerating chamber in the described case courage;
Chamber door, described chamber door are installed in and are used on the casing open or closed described opening; And
Return-air heat exchange portion, described return-air heat exchange portion is formed by juxtaposed capillary and muffler,
Wherein said return-air heat exchange portion comprises the first return-air heat exchanging segment, and the described first return-air heat exchanging segment is arranged at the casing rear side, and between the case gall bladder wall and described case shell inwall of described refrigerating chamber part.
2. refrigerating plant according to claim 1 is characterized in that, the described first return-air heat exchanging segment is attached on the case gall bladder wall of described refrigerating chamber correspondence by the heat conduction adhesive tape.
3. refrigerating plant according to claim 2 is characterized in that, the described first return-air heat exchanging segment forms corrugated.
4. refrigerating plant according to claim 2 is characterized in that, the described first return-air heat exchanging segment coils a circle at least by juxtaposed described capillary and described muffler and forms.
5. refrigerating plant according to claim 1 is characterized in that,
Also be limited with refrigerating chamber in the described case courage, the adjacent setting of described refrigerating chamber with described refrigerating chamber,
Described return-air heat exchange portion also comprises the second return-air heat exchanging segment, and the described second return-air heat exchanging segment is fixed on the case courage of described refrigerating chamber part by support, so that the case courage maintenance certain intervals of the described second return-air heat exchanging segment and described refrigerating chamber part.
6. refrigerating plant according to claim 1 is characterized in that, described return-air heat exchange portion is by forming one by welding between described capillary and the described muffler.
7. refrigerating plant according to claim 1 is characterized in that, described return-air heat exchange portion is by being wrapped to form one by aluminium foil between described capillary and the described muffler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105066581A CN101963422B (en) | 2010-10-08 | 2010-10-08 | Refrigerating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105066581A CN101963422B (en) | 2010-10-08 | 2010-10-08 | Refrigerating device |
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| Publication Number | Publication Date |
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| CN101963422A true CN101963422A (en) | 2011-02-02 |
| CN101963422B CN101963422B (en) | 2012-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105066581A Active CN101963422B (en) | 2010-10-08 | 2010-10-08 | Refrigerating device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338513A (en) * | 2011-08-16 | 2012-02-01 | 合肥美的荣事达电冰箱有限公司 | Refrigerating system and refrigerator with same |
| CN106440623A (en) * | 2016-10-13 | 2017-02-22 | 合肥太通制冷科技有限公司 | Air return tube assembly of refrigerating-freezing box |
| CN110411112A (en) * | 2019-08-23 | 2019-11-05 | 海信（山东）冰箱有限公司 | A kind of refrigerator |
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| CN201811516U (en) * | 2010-10-08 | 2011-04-27 | 合肥美的荣事达电冰箱有限公司 | Refrigerating device |
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| EP0902244A2 (en) * | 1997-09-15 | 1999-03-17 | Liebherr-Hausgeräte Gmbh | Refrigeration apparatus with a cooling space and a freezing compartment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338513A (en) * | 2011-08-16 | 2012-02-01 | 合肥美的荣事达电冰箱有限公司 | Refrigerating system and refrigerator with same |
| CN102338513B (en) * | 2011-08-16 | 2013-11-06 | 合肥美的电冰箱有限公司 | Refrigerating system and refrigerator with same |
| CN106440623A (en) * | 2016-10-13 | 2017-02-22 | 合肥太通制冷科技有限公司 | Air return tube assembly of refrigerating-freezing box |
| CN110411112A (en) * | 2019-08-23 | 2019-11-05 | 海信（山东）冰箱有限公司 | A kind of refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101963422B (en) | 2012-11-28 |
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Owner name: HEFEI MIDEA REFRIGERATOR CO., LTD. Free format text: FORMER NAME: HEFEI MEDIA RONGSHIDA REFRIGERATOR CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 230601 Hefei Changjiang Road, Anhui, No. 669 Patentee after: Hefei Midea Refrigerator Co., Ltd. Patentee after: Hefei Hualing Co., Ltd. Address before: 230601 Hefei Changjiang Road, Anhui, No. 669 Patentee before: Hefei Media Rongshida Refrigerator Co., Ltd. Patentee before: Hefei Hualing Co., Ltd. |