Background technology
General refrigerator be compression condensation-expansion-evaporation by refrigerant as freeze cycle and circulation repeatedly, utilize that low temperature keeps fresh to food in the refrigerator, with this device form into daily necessities it
The refrigerating circulation system of Xiang Guan refrigerator comprises following basic building block therewith: the compressor that the gaseous coolant of the gaseous coolant of low-temp low-pressure compression HTHP is carried out increasing temperature and pressure; From above-mentioned compressor, the refrigerant that injects is carried out condensing condenser; The expansion valve that has minor diameter and begin from condenser refrigerant is reduced pressure; Refrigerant by expansion valve under low-pressure state along with evaporation simultaneously, the evaporimeter that carries out heat absorption.Following with reference to accompanying drawing, following explanation is carried out in the structure and the effect of general refrigerator.
At first, shown in Fig. 1 a, the heat exchange cold air of this evaporator of electric refrigerator 30 directly injects and keeps in the refrigerating chamber 1 of about-18 degree temperature; Cold air in the refrigerating chamber is injected and keeps the refrigerating chamber of about 0 ~ 7 degree temperature.With these words of distinguishing, the bottom at the refrigerating chamber back side will possess the Machine Room, there is the cold air of process evaporimeter low temperature on the top of evaporimeter 30 to the blowing fan 6 of refrigerating chamber 1 forced circulation and the motor of driving said fan, in the side of evaporimeter, form cold air chambers 10 in the hollow clapboard 7 that the space of the space of refrigerating chamber and evaporimeter is divided.The a plurality of cold gas exhausting outlets 11 that communicate with refrigerating chamber are arranged on hollow clapboard 7; The cold air sucting inlet 13 that cold air is refilled evaporimeter 30 is arranged in cold air chamber 10 bottoms.
Shown in Fig. 1 b, a side of refrigerating chamber 1 is a dividing plate 3, and this dividing plate is that the refrigerating chamber 2 that is connected with refrigerating chamber is public, and on the dividing plate 3, two cold air ports are arranged at the bottom, that is: the cold air connected entrance 3a that discharges to refrigerating chamber from refrigerating chamber; Also inject the cold air connected entrance 3b of high temperature cold air again to refrigerating chamber 1 in refrigerating chamber 2 circulations.The identical refrigerator of structure therewith,, in refrigerating chamber 1 and refrigerating chamber 2, fill under the food state, if apply voltage, the compressor of Machine Room will receive the control signal of controller (diagram is omitted) and move, and evaporimeter 30 carries out heat exchange, immediately, pass through evaporimeter, form cold gas,, discharge to cold air chamber 10 through blowing fan 6, by cold gas exhausting outlet 11, flow out by refrigerating chamber 1.Part in the above-mentioned cold air by cold air connected entrance 3a, flows into to refrigerating chamber 2.With the high temperature cold air of above-mentioned refrigerating chamber and refrigerating chamber circulation,, flow into again, form cooling air circulation system with this to evaporimeter 30 again by suction inlet 13.That is, the refrigerator identical with above-mentioned structure is by evaporimeter 30, with carrying out a part of cold air of heat exchange, via refrigerating chamber 1, flows into refrigerating chamber 2.In this case, the design temperature of refrigerating chamber is compared with refrigerating chamber, though be high temperature, has the problem that reduces because of the less refrigerating chamber cooling effectiveness of cold air air quantity.In addition, refrigerating chamber 1 exchanges mutually with the cold air of refrigerating chamber 2, then has the interactional problem of food odors of storage in the refrigerator.Usually, the article of refrigerating chamber collection and the concentration of the relative smell of frozen material also can import the smell of chilled goods into refrigerating chamber, and frozen material is exerted an influence.In order to address the above problem, the cold air chamber of refrigerating chamber and the cold air chamber of refrigerating chamber should be separated from each other, the refrigerator that possesses evaporimeter respectively is provided.But, in the case, need possess the evaporimeter of two high values, this is not only the increase expense, and the structure of freeze cycle element becomes complicated, the problem generation that causes the refrigerator price to rise.
The specific embodiment
Below, will with independent refrigeration electric refrigerator related example of the present invention, describe in detail with reference to accompanying drawing.
At first, Fig. 2 is the structural representation of independent refrigeration electric refrigerator of the present invention.A kind of independent refrigeration electric refrigerator comprises refrigerating chamber, refrigerating chamber, evaporimeter, and this refrigerator also comprises the dividing plate 3 of a separation refrigerating chamber 1 and refrigerating chamber 2, and this dividing plate 3 is between refrigerating chamber 1 and refrigerating chamber 2; One side of refrigerating chamber 1 has cold air chamber 10, in this cold air chamber 10 evaporimeter 30 is arranged; One side of refrigerating chamber 2 has cold air chamber 20; 3 separation and adjacent of two cold air chamber 10,20 usefulness dividing plates; Cold air chamber 20 cold air to refrigerating chamber 2 one sides are housed between described two cold air chambers 10,20 to carry out heat exchange and the cold air of evaporimeter 30 is delivered to heat transfer component 40 in the cold air chamber 20 of refrigerating chamber 2 one sides; There are pair cold air process evaporimeter and heat transfer component to force the fan that sucks, discharges in the cold air chamber.This structure forms two cold air chambers, that is: a cold air that is refrigerating chamber 1 circulates carries out the cold air chamber 10 that heat exchange forms; Another be cold air of refrigerating chamber 2 circulation carry out heat exchange cold air chamber 20; The cold air of refrigerating chamber 1 and refrigerating chamber 2 is because of assembling cooling simultaneously mutually.
Described heat transfer component 40 is crossed in refrigerating chamber side cold air chamber 10 and refrigerating chamber side cold air chamber 20.Have evaporimeter 30 to receive heat transmission in cold air chamber 10, heat transfer component 40 is flat being inserted on cold air chamber 10 and the cold air chamber 20, promptly, one end of above-mentioned heat transfer component 40 is to be that the center is arranged in the cold air chamber 10 with evaporimeter 30, and other end is arranged in the cold air chamber 20.
Described heat transfer component 40 is by forming to a plurality of heat exchanging fins 43 that refrigerating chamber side cold air chamber 20 extends with the heat sink 41 of evaporimeter 30 one side adjacency with from this heat sink 41.Fin 41 is a kind of being arranged in the cold air chamber 10 that freezes the chamber side, and the convection current of its cold air is carried out heat transmission from evaporimeter 30.Because of above-mentioned evaporimeter 30 generally is a cylinder structure, so fin 41 positions should be by the tube side of evaporimeter to carrying out distance adjustment.43 heat transmission because of fin 41 of heat exchanging fin are carried out heat transmission to cold air chamber 20.Therefore, the quantity of heat exchanging fin 43 is many more, and is good more to heat exchanger effectiveness.
Described heat transfer component 40 should be used the high metal of pyroconductivity.
The metal that described pyroconductivity is high is copper, iron or aluminium.
What described fan had comprised the short flow fan 60 of short stream effect and worked the effect of distributing distributes fan 50.Said fans can force to suck, discharge to cold air, to improve heat exchanger effectiveness.
Be specific embodiment below:
Fig. 3 is the 1st embodiment of the present invention.Refrigerator of the present invention separates the dividing plate 3 of refrigerating chamber 1 and refrigerating chamber 2 between refrigerating chamber 1 and refrigerating chamber 2.The cold air chamber 10 of refrigerating chamber 1 side is positioned at dividing plate 3 left sides; The cold air chamber 20 of refrigerating chamber 2 sides is positioned at the right side of dividing plate 3 and the top of refrigerating chamber 2.Evaporimeter 30, short flow fan 60 and cold gas exhausting outlet 11 are arranged in the cold air chamber 10 of refrigerating chamber side, and described short flow fan 60 and cold gas exhausting outlet 11 be positioned at the top of evaporimeter 30, cold air sucting inlet 13 is arranged at cold air chamber 10 bottoms of refrigerating chamber side; One side lower part of the cold air chamber 20 of refrigerating chamber side has cold air sucting inlet 23, and there is cold gas exhausting outlet 21 on its top and distributes fan 50.With evaporimeter 30 adjacency be heat sink 41; Heat transfer component 40 in the cooling chamber 20 are to be made of the heat exchanging fin 43 that extends to refrigerating chamber side cold air chamber 20 with heat sink 41.
The cold air chamber 20 of embodiments of the invention refrigerating chamber side is the right side from dividing plate 3, till the top of refrigerating chamber 2, forms elongated surfaces.In the cold air chamber 10 of refrigerating chamber side, possess the evaporimeter 30 that constitutes the freeze cycle element, in two cold air chambers, have and equal the heat transfer component 40 of inserting.On bottom and top, formation can suck and discharge the cold air sucting inlet 13 and the cold gas exhausting outlet 11 of refrigerating chamber 1 cold air; At the side lower part of cold air chamber 20, formation can suck the cold air sucting inlet 23 of refrigerating chamber 2 cold air; Form the cold gas exhausting outlet 21 that can carry out the cold air heat exchange on top.In addition, for the cold air forced circulation, on top cold gas exhausting outlet 11 position contacting of evaporimeter 30 short flow fan 60 is arranged in cold air chamber 10, the cold air that this short flow fan 60 carries out heat exchange with evaporimeter 30 is begun to discharge by the side of refrigerating chamber 1.Distribute the cold air that fan 50 will carry out heat exchange by heat transfer component 40 in the right side cold air chamber 20 of dividing plate 3, by the top discharge of refrigerating chamber 2. Fan 60,50 carries out forced circulation with the cold air in the refrigerator in running simultaneously.At this moment,,,, carry out heat exchange, unceasingly,, discharge, carry out repeatedly with this process that circulates to refrigerating chamber through cold gas exhausting outlet 11 through evaporimeter 30 to cold air chamber 10 inflows of refrigerating chamber side by cold air sucting inlet 13 at the cold air of refrigerating chamber 1 circulation.The circulation cold air of refrigerating chamber 2 because of distributing the action of fan 50, by cold air sucting inlet 23, flows into the cold air chamber 20 of refrigerating chamber side.Unceasingly, the heat exchanging fin 43 through heat transfer component 40 carries out heat exchange.With the cold air of this heat exchange, because of distributing the action of fan 50, the cold air radiation above refrigerating chamber is moved, and by cold gas exhausting outlet 21, discharges to refrigerating chamber, and the process of this circulation is to carry out repeatedly.
The independent refrigeration electric refrigerator of above-mentioned example only with an evaporimeter, just can make refrigerating chamber and refrigerating chamber independently cool off fully.Distribute fan in the cold air chamber 20 of refrigerating chamber side, then can increase the cold air air quantity of refrigerating chamber circulation.
Fig. 4 is the 2nd embodiment of the present invention.Refrigerator of the present invention separates the dividing plate 3 of refrigerating chamber 1 and refrigerating chamber 2 between refrigerating chamber 1 and refrigerating chamber 2.The cold air chamber 10 of refrigerating chamber 1 side is positioned at the top of dividing plate 3 left sides and refrigerating chamber 1; The cold air chamber 20 of refrigerating chamber 2 sides is positioned at the opposite side of dividing plate 3; In the cold air chamber 10 of refrigerating chamber side evaporimeter 30 arranged, distribute fan 50 and cold gas exhausting outlet 11, and describedly distribute the top that fan 50 and cold gas exhausting outlet 11 are positioned at evaporimeter 30, cold air sucting inlet 13 is arranged at cold air chamber 10 bottoms of refrigerating chamber side; One side lower part of the cold air chamber 20 of refrigerating chamber side has cold air sucting inlet 23, and cold gas exhausting outlet 21 and short flow fan 60 are arranged at its top.
The cold air chamber 10 of the refrigerating chamber side of embodiments of the invention refrigerator is that the left surface by dividing plate 3 begins, and till the top of refrigerating chamber 1, forms elongated surfaces.The cold air sucting inlet 13 of cold air chamber 10 is positioned at the side lower part of refrigerating chamber; Cold gas exhausting outlet 11 is positioned at the top of refrigerating chamber.The cold air sucting inlet 23 of the cold air chamber 20 of refrigerating chamber side and cold gas exhausting outlet 21 are positioned at the bottom and the top of refrigerating chamber.Evaporimeter 30 is arranged in the cold air chamber 10; The heat exchanging fin 43 that heat transfer component 40 is arranged in the cold air chamber 20 is the heat sinks 41 in the cold air chamber 10, connects dividing plate 3 and extends formations.
For with the cold air forced circulation, cold air chamber 10 tops in the left side of dividing plate 3 are provided with the effect of distributing and distribute fan 50; The short flow fan 60 of short stream effect is set on cold air chamber 20 tops on the right side of dividing plate 3.The cold air that carries out heat exchange by evaporimeter 30 is begun to discharge by the side of refrigerating chamber 1; The cold air that carries out heat exchange by heat transfer component 40 is then discharged by beginning above the refrigerating chamber 2.
Fig. 5 is the 3rd embodiment of the present invention.Refrigerator of the present invention separates the dividing plate 3 of refrigerating chamber 1 and refrigerating chamber 2 between refrigerating chamber 1 and refrigerating chamber; The cold air chamber 10 of refrigerating chamber 1 side is positioned at the top of dividing plate 3 left sides and refrigerating chamber 1; The cold air chamber 20 of refrigerating chamber 2 sides is positioned at the right side of dividing plate 3 and the top of refrigerating chamber 2; In the cold air chamber 10 of refrigerating chamber side evaporimeter 30 arranged, distribute fan 50 and cold gas exhausting outlet 11, and describedly distribute the top that fan 50 and cold gas exhausting outlet 11 are positioned at evaporimeter 30, cold air sucting inlet 13 is arranged at cold air chamber 10 bottoms of refrigerating chamber side; One side lower part of the cold air chamber 20 of refrigerating chamber side has cold air sucting inlet 23, and there is cold gas exhausting outlet 21 on its top and distributes fan 50.
The cold air chamber 10 of the refrigerating chamber side of embodiments of the invention refrigerator and the cold air chamber 20 of refrigerating chamber side are that the two sides by dividing plate 3 begin, and till the top of refrigerating chamber 1 or refrigerating chamber 2, form two cold air chambers respectively, with the cold air forced circulation.Cold air begins from the side, flows to upper bend and partly is provided with and distributes fan 50; The cold gas exhausting outlet 11 of cold air chamber 10 and the cold gas exhausting outlet 21 of cold air chamber 20 all are positioned at the top of refrigerating chamber and the top of refrigerating chamber; The cold air sucting inlet 23 of the cold air sucting inlet 13 of the cold air chamber of above-mentioned refrigerating chamber side and the cold air chamber of refrigerating chamber side all is positioned at the side lower part of refrigerating chamber and the side lower part of refrigerating chamber.Carry out heat exchange by evaporimeter 30.The cold air that is begun to discharge and carried out heat exchange by heat transfer component 40 by the side of refrigerating chamber 1 is by the top discharge of refrigerating chamber 2.
In cold air chamber 10 with evaporimeter 30 adjacency be heat sink 41; Heat transfer component 40 in the cold air chamber 20 are to constitute by connecting the heat exchanging fin 43 that dividing plates 3 extend to cold air chamber 20 with heat sink 41.
The refrigerator of present embodiment is the same with the independent refrigeration electric refrigerator effect of aforementioned Fig. 3, just the circulating cold air of refrigerating chamber and refrigerating chamber structure is different, its difference is then with aforementioned the same, and the cold air of heat exchange is then by the top discharge of the top and refrigerating chamber of each refrigerating chamber 1.
Fig. 6 a is the 4th embodiment of the present invention.Refrigerator of the present invention separates the dividing plate 3 of refrigerating chamber 1 and refrigerating chamber 2 between refrigerating chamber 1 and refrigerating chamber 2.At refrigerating chamber 1 and refrigerating chamber 2 rear sides cold air chamber 10,20 is arranged respectively, that is: the figure upper left side is a refrigerating chamber 1, and the right side is a refrigerating chamber 2; The back of refrigerating chamber is a cold air chamber 10; The back of refrigerating chamber is a cold air chamber 20.In the cold air chamber 10 of refrigerating chamber side evaporimeter 30 is arranged; Heat sink 41 1 ends in cold air chamber 10 and with evaporimeter 30 adjacency, its other end heat sink 41 in the cold air chamber 20 of refrigerating chamber side connects dividing plates 3; Prolong on heat sink 41 parts in the cold air chamber 10 of refrigerating chamber side and a plurality of heat exchanging fins 43 are arranged to cold air chamber 20; In the sweep of the heat sink 41 in the cold air chamber 10 of refrigerating chamber side a plurality of heat exchanging fins 43 are arranged, short flow fan 60 is positioned at cold air chamber 10 evaporimeters 30 of refrigerating chamber side and the top of heat transfer component 40.
The evaporimeter 30 that constitutes the freeze cycle parts is arranged in the cold air chamber 10 of the refrigerating chamber side of embodiment of the invention refrigerator.In the cold air chamber 20 of refrigerating chamber side, heat transfer component 40 is arranged.One end of heat transfer component 40, in cold air chamber 10 and and evaporimeter 30 adjacency, its other end perforation dividing plate.Heat sink 41 is arranged in the cold air chamber 20, extend and what extend to cold air chamber 20 is a plurality of heat exchanging fins 43 by heat sink 41.Side and heat sink 41 adjacency that evaporimeter 30 is narrower, the area that heat is transmitted is littler than aforesaid example.But heat sink 41 is designed to crooked shape in cold air chamber 10, and a plurality of heat exchanging fins 43 that carry out the reception of heat transmission are arranged in the crooked shape, can make evaporimeter 30 and heat sink 41 adjacent areas guarantee maximum.In addition, the fan 60 of short stream effect is all arranged at the top of the top of evaporimeter 30 and cold air chamber 20 interior heat transfer component 40 in the cold air chamber 10, but the cold air forced circulation.
Fig. 6 b is facing and schematic side view of Fig. 6 a example structure.The cold air sucting inlet 23 of the cold air sucting inlet 13 of the cold air chamber 10 of refrigerating chamber side and the cold air chamber 20 of refrigerating chamber side all is positioned at the bottom of refrigerating chamber 1 and the bottom of refrigerating chamber 2; The cold gas exhausting outlet 11 of cold air chamber 10 and the cold gas exhausting outlet 21 of cold air chamber 20 all are positioned at the upper back of refrigerating chamber 1 and the upper back of refrigerating chamber 2.
The independent refrigeration electric refrigerator of present embodiment, if it is the same with the independent refrigeration electric refrigerator effect of earlier figures 3, just the circulating cold air of refrigerating chamber and refrigerating chamber structure is different, promptly, cold air chamber 10 and cold air chamber 20 are positioned at the rear portion of refrigerating chamber 1 and refrigerating chamber 2, and the cold air of heat exchange is then by the top discharge of the top and refrigerating chamber 2 of each refrigerating chamber 1.Through the cold air that evaporimeter 30 carries out heat exchange, discharge from the upper back of refrigerating chamber 1; Through the cold air that heat transfer component 40 is carried out heat exchange, discharge from the upper back of refrigerating chamber 2.