CN1815114A - Circle-type refrigerator - Google Patents
Circle-type refrigerator Download PDFInfo
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- CN1815114A CN1815114A CN 200510033232 CN200510033232A CN1815114A CN 1815114 A CN1815114 A CN 1815114A CN 200510033232 CN200510033232 CN 200510033232 CN 200510033232 A CN200510033232 A CN 200510033232A CN 1815114 A CN1815114 A CN 1815114A
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Abstract
A circle shape refrigerator includes freezing chamber in middle part, refrigerating room surrounding freezing chamber, compressor, evaporator, condensator, and capillary. It features said partition chamber of refrigerator adopting direct refrigeration mode to make heat exchange, the insulating layer thickness between freezing chamber and refrigerating chamber being less than insulating layer thickness of housing. Said invention saves electricity by 20 per cent than straight refrigeration unit under same condition, especially suitable for large volume refrigerator.
Description
Technical field
The present invention relates to a kind of refrigerator, mainly be applicable to storage fruit, vegetables and beverage etc., be specifically related to a kind of refrigerator of back-shaped structure.
Background technology
Energy crisis has caused great concern at present, has promoted countries in the world household electrical appliance industry and has further improved the product efficiency, reduces energy resource consumption.Refrigerator accounts for 20% of family's total power consumption greatly as principal home's electrical appliance, and its life-span is up to 10--15.In order to adapt to strict energy consumption standard and intense market competition, many fridge manufacturers have adopted distinct methods to reduce the energy consumption of refrigerator, as the thickening thermal insulation layer, add vacuum insulation panel (VIP) or inflation thermal insulation board in the insulation layer, adopt high-efficient compressor, adopt converter technique, improve the design of door envelope, optimize the working procedure of refrigerator etc.These measures have reduced the energy consumption of refrigerator to a certain extent, as domestic report volume in 2000 be about 200L, the day power consumption of BCD series refrigerator reaches 0.48KWh/24h, the day power consumption of like product in 2002 is low to moderate 0.38KWh/24h, this day in 2004 power consumption be low to moderate 0.29KWh/24h.Usually, the energy consumption of refrigerator depends on the COP and the refrigerator lining of compressor.At present be difficult to have breakthrough aspect the raising of compressor COP, aspect thermal insulation layer, the use of VIP or inflation thermal insulation board can reduce the energy consumption of refrigerator effectively, but VIP plate and inflation thermal insulation board cost an arm and a leg and the assembly technology complexity, therefore also are not used widely.The refrigerator that has then mainly by using converter technique, reach energy-conservation effect, but cost is higher relatively, and the about RMB of cost that the separate unit refrigerator increases is more than 300 yuan.
Present BCD series refrigerator adopts refrigerating chamber and refrigerating chamber is mutual independently, the structural design of a shared heat-insulation layer, this structural design has considered that refrigerator uses and the convenience of processing and manufacturing and appearance design etc., but have only a side heat-insulation layer and refrigerating chamber shared around the refrigerating chamber, other sides all contact with environment, as shown in Figure 1, F represents that refrigerating chamber, R represent refrigerating chamber.As everyone knows, under the constant situation of insulation layer thickness, the casing internal-external temperature difference is big more, and its leaking heat is big more.Its external casing leaking heat of the refrigerator of traditional structure mainly is divided into refrigerating chamber and leaks two kinds of hot and cold Tibetan chamber leakage heat, because the temperature of refrigerating chamber is low to moderate below-18 ℃ usually, under 25 ℃ of environment, indoor/outdoor temperature-difference is up to 43 ℃, be refrigerating chamber and circumstance of temperature difference (about 20 ℃) 2.15 times, if the same heat-insulation layer that adopts same thickness with refrigerating chamber of refrigerating chamber, it is long-pending to have a same big leakage hot side, and then its leaking heat will be 2.15 times of refrigerating chamber.In addition, because the part evaporimeter of refrigerator is arranged on the back side or the side of refrigerator, and the temperature of its evaporimeter often is low to moderate below-30 ℃ during the refrigerator refrigeration, and is bigger with the temperature difference of external environment, thereby causes bigger leakage heat.
In November, 2004, the application number of Chinese Granted publication on the 10th was 03274095.In 6 the Chinese utility model patent " a kind of household refrigerator-freezer ", a kind of back-shaped structure refrigerator is disclosed, its refrigerating chamber is three-back-shaped structure in surrounding outside refrigerating chamber, the cold of refrigerating chamber can be passed to refrigerating chamber earlier but not external environment by heat-insulation layer, has reduced loss of refrigeration capacity.But,, also exist two subject matters though back-shaped structure refrigerator has good energy-saving effect.At first, the cold air chamber of being frozen intercepts mobile having some setbacks in the temperature of refrigerating chamber skewness, refrigerating chamber.Referring to Fig. 2, because back-shaped structure refrigerator cold-storage chamber space ratio general refrigerator refrigerating chamber is narrow, refrigerating chamber inner air convection ability is relatively poor, and more cold air accumulates in the bottom, cause the bottom minimum, and middle part temperature and head temperature is taken second place.The trizonal temperature comparison of refrigerating chamber size order is I＞II＞III.Secondly, for the user, refrigerating chamber is too narrow, and the III district uses extremely inconvenient in the back-shaped structure cold compartment of refrigerator.The III district is blocked the chamber of being frozen, and has caused the inconvenience that picks and places food.
Summary of the invention
The technical problem to be solved in the present invention is, deficiency at above-mentioned prior art existence, a kind of energy-saving refrigerator of new structure is provided, solves the energy consumption of refrigerator problem, provide further that a kind of technology is simple, cost low, the circle-type refrigerator of efficient energy-saving from heat exchange structure.
The technical solution used in the present invention is: a kind of circle-type refrigerator, the refrigerating chamber that comprises the middle part, the back-shaped refrigerating chamber refrigerator chamber all around that is looped around, compressor, evaporimeter, condenser, capillary, it is characterized in that the chamber is to adopt the direct cooling mode heat exchange between refrigerator, the insulation layer thickness between refrigerating chamber and the refrigerating chamber is less than the cabinet shell insulation layer thickness.
In above-mentioned circle-type refrigerator, two-layer or two-layer above tier rack type evaporimeter is set in the described refrigerating chamber.
In above-mentioned circle-type refrigerator, the described refrigerating chamber chamber of being frozen be divided into the top I district, bottom III district and with the II district of refrigerating chamber left and right sides adjacency, described refrigerator evaporator is arranged in the I district.
In above-mentioned circle-type refrigerator, described refrigerator evaporator is the tube-in-sheet evaporator that is provided with in the intermediate depth direction.
In above-mentioned circle-type refrigerator, described refrigerator body is established cover plate in II district and I district, the joint, III district of refrigerating chamber.
In above-mentioned circle-type refrigerator, establish auxiliary evaporator on the refrigerating chamber intracavity sidewall.
In above-mentioned circle-type refrigerator, near refrigerator evaporator, establish temperature-sensitive head.
In above-mentioned circle-type refrigerator, the left and right sidewall of described refrigerating chamber inner chamber is equipped with auxiliary evaporator, each evaporimeter of refrigerator is linked in sequence by freezer evaporator, refrigerating chamber right side auxiliary evaporator, refrigerator evaporator, refrigerating chamber left side 1 auxiliary evaporator, and the insulation layer thickness of refrigerating chamber left and right side is 20～30mm.
In above-mentioned circle-type refrigerator, be provided with the VIP vacuum heat-insulating plate in the outcase of refrigerator foaming layer.
The present invention has the following advantages and beneficial effect:
1. the built-in evaporator of the top area of refrigerating chamber has solved the uneven defective of temperature of refrigerating chamber, and under equal conditions can reduce greatly refrigerator the day power consumption, than the direct cooling refrigerator power saving under the equal conditions about 20%, than the wind cooling refrigerator power saving under the equal conditions about 40%;
2. now be becoming tight energy day, many local policies of using electricity in off-peak hours of implementing, when not powering, the circle-type refrigerator refrigerating chamber is equivalent to a big cold-storage device, still can be constantly and refrigerating chamber generation heat exchange, can make refrigerating chamber in 24 hours, keep lower temperature, the food in the refrigerating chamber is not gone bad because of power failure;
3. when conventional refrigerator is used the VIP vacuum heat-insulating plate, often be difficult to install, have the problem of assembling difficulty in the place of refrigeration piping than comparatively dense.Do not bury refrigeration piping in the circle-type refrigerator shell alveolar layer of the present invention, help the assembling of VIP vacuum heat-insulating plate, the outer case alveolar layer can large tracts of land adopt the VIP vacuum heat-insulating plate, creates more energy-conservation direct-cooled large refrigerator.
Description of drawings
Fig. 1 is the refrigerating structural representation of current refrigerator;
Fig. 2 is the structural representation of utility model patent " a kind of household refrigerator-freezer ";
Fig. 3 is the structural representation of circle-type refrigerator of the present invention;
Fig. 4 is the evaporimeter schematic layout pattern of circle-type refrigerator of the present invention;
Fig. 5 is the refrigeration part connection diagram of circle-type refrigerator of the present invention;
Fig. 6 is the control schematic diagram of circle-type refrigerator of the present invention.
The specific embodiment
Referring to Fig. 3, Fig. 4, from circle-type refrigerator casing Facad structure schematic diagram and side view, refrigerating chamber R is back-shaped to be looped around around the refrigerating chamber F, and the insulation layer thickness between refrigerating chamber and the refrigerating chamber is less than the cabinet shell insulation layer thickness.The refrigerating chamber of refrigerator and refrigerating chamber adopt the direct cooling mode heat exchange, directly walks to the superiors earlier in the placed layer posture evaporimeter 1 in refrigerating chamber, evaporimeter, after successively walk downward.Be equipped with auxiliary evaporator 2 at the left and right sidewall of refrigerating chamber inner chamber, further strengthen disengagement area.Refrigerating chamber be frozen I district that the chamber wall is divided into the top, bottom III district and with the II district of refrigerating chamber left and right sides adjacency, refrigerator evaporator 3 is arranged in the I district.Refrigerator evaporator is a tube-in-sheet evaporator, is provided with in the intermediate depth direction.Freezing, the refrigeration evaporator of refrigerator are linked in sequence by freezer evaporator 1, refrigerating chamber right side auxiliary evaporator 2, refrigerator evaporator 3, refrigerating chamber left side auxiliary evaporator 4.Near refrigerator evaporator 3, establish temperature-sensitive head.Cover plate is established in II district and I district, joint, III district at refrigerating chamber.Refrigerator evaporator is arranged on the top can remedy the cold that the I district sinks, and promotes the convection current transmission of cold air in the refrigerating chamber, makes temperature of refrigerating chamber be evenly distributed.Accelerate the cooling velocity of refrigerating chamber,
Referring to Fig. 5, when the power line 9 of compressor 5 is plugged socket energising operation, compressor 5 sucks saturated vapor from evaporimeter, and send into condensation in the condenser 6 after the compressed machine adiabatic compression, successively through endothermic gasification in the freezer evaporator 1 in the refrigerating chamber, refrigerating chamber right flank auxiliary evaporator 2, refrigerating chamber top auxiliary evaporator 3, the refrigerating chamber left surface auxiliary evaporator 4, the saturated vapor after the gasification is sucked and repetitive cycling by compressor through liquid reservoir 8 condensed fluid after capillary 10 expansion throttling.In cyclic process, the disengagement area of freezer evaporator 1 is much larger than refrigerating chamber right side auxiliary evaporator 2, refrigerator evaporator 3, refrigerating chamber left side auxiliary evaporator 4, (specifically see Table 1, table 1 is listed the specification size and the disengagement area of each evaporimeter of refrigerator) and refrigerating chamber right side auxiliary evaporator 2, under the effect of refrigerator evaporator 3, freezer temperature sharply descends, make refrigerating chamber peripheral in the refrigerating chamber with it, environment has produced temperature difference, auxiliary evaporator 2, auxiliary evaporator 2 has produced the temperature difference with refrigerating chamber, refrigerating chamber and refrigerating chamber have been promoted, heat exchange between the external environment, auxiliary evaporator 2, heat exchange between auxiliary evaporator 2 and the refrigerating chamber, wherein the alveolar layer thickness of the refrigerating chamber left and right sides only is 25mm, alveolar layer thickness much smaller than other side of refrigerating chamber (sees Table 2, table 2 is listed the thickness parameter and the evaporimeter distribution overview of each side of refrigerating chamber), therefore under equal conditions, the rate of heat transfer of refrigerating chamber left and right sides face is much larger than the rate of heat transfer of other side.When refrigeration system was moved, the refrigeration refrigerating chamber of auxiliary evaporator 3 was divided into to the heat transfer of refrigerating chamber: the refrigeration of the refrigeration of side auxiliary evaporator 2, side auxiliary evaporator 4 and the cold draining of refrigerating chamber refrigeration.When refrigeration system is not moved when promptly shutting down, refrigerating chamber relies on the cold draining refrigeration of refrigerating chamber fully.We can say, the refrigerating capacity of the evaporimeter of refrigerating chamber must satisfy the refrigeration demand of the whole refrigerator that comprises refrigerating chamber and refrigerating chamber, the refrigerating capacity of depending merely on the F evaporimeter 1 in the refrigerating chamber is not enough, and therefore the deficiency that refrigerating chamber right side auxiliary evaporator 2 and refrigerating chamber left side auxiliary evaporator 4 remedies freezer evaporator 1 refrigerating capacity is set.Refrigerating chamber is arranged in the refrigerating chamber, it is long and narrow that refrigerating space seems, be unfavorable for the free convection heat transfer in the refrigerating chamber, cold air sinks in refrigerating chamber, cause temperature distributing disproportionation even easily, auxiliary evaporator 3 is arranged at the refrigerating chamber top can make the refrigerating chamber top keep about 5 ℃, and constantly replenishes the cold air of sinking, has strengthened the convection heat transfer' heat-transfer by convection in the refrigerating chamber.
Even after power failure, refrigerator can't be worked, and the cold of refrigerating chamber can pass to refrigerating chamber, can stop the temperature recovery problem of refrigerating chamber in a period of time.
Referring to Fig. 6, the present invention adopts single temperature controller to carry out temperature control.Temperature-sensitive head 7 is connected on the master control borad 100, master control borad is handled the temperature information of temperature-sensitive head and is controlled the start-stop of compressor 5, compressor is connected with the capillary (not shown) with condenser 6, and the evaporimeter of advanced refrigerating chamber is got back to compressor again from the evaporimeter of refrigerating chamber.The present invention has realized the single-point control of temperature, controls the temperature of temperature of refrigerating chamber and refrigerating chamber by the control evaporating temperature.
Because the door body of refrigerating chamber directly contacts with external environment with the back side, be subjected to the direct heat load of external environment, so door body and the back side of refrigerating chamber can not arrange evaporimeter, to reduce the heat load of complete machine, and can in the shell foaming layer, be provided with the VIP vacuum heat-insulating plate, make refrigerator more energy-conservation.
Circle-type refrigerator of the present invention has solved the uneven defective of temperature of refrigerating chamber, and under equal conditions can reduce the day power consumption of refrigerator greatly, than the direct cooling refrigerator power saving under the equal conditions about 20%, than the wind cooling refrigerator power saving under the equal conditions about 40%.Table 3 is listed heat load, the energy consumption contrast situation of the present invention and ordinary straight cold refrigerator.
Table 1
| Evaporimeter | F evaporimeter 1 | | | Auxiliary evaporator 4 |
| Caliber (mm) | Monolayer | | Monolayer | |
| Length (m) | 15.62 | 3.12 | 1.6 | 3.12 |
| Disengagement area (m 2) | 0.323 | 0.048 | 0.033 | 0.048 |
Table 2
| The refrigerating chamber heat-transfer area | The left side | The right side | The door body | The back side | End face | The bottom surface | |
| Alveolar layer thickness (mm) | 25 | 25 | 70 | 135 | 90 | 90 | |
| Evaporimeter | | Auxiliary evaporator 4 | Do not have | Do not have | Do not have | Do not have | |
| Area (m 2) | The evaporimeter area coverage | 0.1512 | 0.1512 | 0 | 0 | 0 | 0 |
| Evaporimeter is area coverage not | 0.3739 | 0.3739 | 0.2835 | 0.2835 | 0.2065 | 0.2065 | |
| The gross area | 0.5251 | 0.5251 | 0.2835 | 0.2835 | 0.2065 | 0.2065 | |
| Peripheral environment | Refrigerating chamber | Refrigerating chamber | External environment | External environment | Refrigerating chamber | Refrigerating chamber | |
Table 3
| Refrigerator | Dischargeable capacity (L) | Total thermal load | Day power consumption | ||||
| Refrigerating chamber | Refrigerating chamber | Total measurement (volume) | Total thermal load Q (W) | Circle-type refrigerator with the heat load ratio of volume general refrigerator | Day power consumption (KWh/24h) | Circle-type refrigerator with the common day power consumption ratio of volume | |
| The circle-type refrigerator model machine is with the volume general refrigerator | 387 360 | 118 200 | 505 560 | 39.80 51.13 | 0.778 | 1.24 2.3 | 0.539 |
Claims (9)
1, a kind of circle-type refrigerator, the refrigerating chamber in the middle part of comprising, the back-shaped refrigerating chamber refrigerator chamber all around that is looped around, compressor (5), evaporimeter (1,2,3,4), condenser (6), capillary (10) is characterized in that, the direct cooling mode heat exchange is adopted in the chamber between refrigerator, and the insulation layer thickness between refrigerating chamber and the refrigerating chamber is less than the cabinet shell insulation layer thickness.
2, according to the described circle-type refrigerator of claim 1, it is characterized in that, two-layer or two-layer above tier rack type evaporimeter (1) is set in the described refrigerating chamber.
3, according to the described circle-type refrigerator of claim 2, it is characterized in that, the described refrigerating chamber chamber of being frozen be divided into the top I district, bottom III district and with the II district of refrigerating chamber left and right sides adjacency, described refrigerator evaporator (3) is arranged in the I district.
According to the described circle-type refrigerator of claim 3, it is characterized in that 4, described refrigerator evaporator (3) is the tube-in-sheet evaporator that is provided with in the intermediate depth direction.
According to the described circle-type refrigerator of claim 3, it is characterized in that 5, described refrigerator body is established cover plate in II district and I district, the joint, III district of refrigerating chamber.
6, according to arbitrary described circle-type refrigerator in the claim 2 to 5, it is characterized in that, establish auxiliary evaporator on the refrigerating chamber intracavity sidewall.
7, according to the described circle-type refrigerator of claim 6, it is characterized in that, near refrigerator evaporator, establish temperature-sensitive head.
8, according to the described circle-type refrigerator of claim 6, it is characterized in that, the left and right sidewall of described refrigerating chamber inner chamber is equipped with auxiliary evaporator (2,4), each evaporimeter of refrigerator is linked in sequence by freezer evaporator (1), refrigerating chamber right side auxiliary evaporator (2), refrigerator evaporator (3), refrigerating chamber left side 1 auxiliary evaporator (4), and the insulation layer thickness of refrigerating chamber left and right side is 20～30mm.
9, described according to Claim 8 circle-type refrigerator is characterized in that, is provided with the VIP vacuum heat-insulating plate in the outcase of refrigerator foaming layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510033232 CN1815114A (en) | 2005-02-06 | 2005-02-06 | Circle-type refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510033232 CN1815114A (en) | 2005-02-06 | 2005-02-06 | Circle-type refrigerator |
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| Publication Number | Publication Date |
|---|---|
| CN1815114A true CN1815114A (en) | 2006-08-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510033232 Pending CN1815114A (en) | 2005-02-06 | 2005-02-06 | Circle-type refrigerator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222458A (en) * | 2014-05-30 | 2016-01-06 | 海尔集团技术研发中心 | Portable energy-saving household refrigerator-freezer |
-
2005
- 2005-02-06 CN CN 200510033232 patent/CN1815114A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222458A (en) * | 2014-05-30 | 2016-01-06 | 海尔集团技术研发中心 | Portable energy-saving household refrigerator-freezer |
| CN105222458B (en) * | 2014-05-30 | 2018-07-03 | 海尔集团技术研发中心 | Portable energy-saving household refrigerator-freezer |
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