CN1312452C - Multi-circulation refrigerator with circulation fan and separated refrigeration and freezing compartment - Google Patents
Multi-circulation refrigerator with circulation fan and separated refrigeration and freezing compartment Download PDFInfo
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- CN1312452C CN1312452C CNB2004100271705A CN200410027170A CN1312452C CN 1312452 C CN1312452 C CN 1312452C CN B2004100271705 A CNB2004100271705 A CN B2004100271705A CN 200410027170 A CN200410027170 A CN 200410027170A CN 1312452 C CN1312452 C CN 1312452C
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Abstract
The present invention discloses a split multicycle refrigerator comprising a refrigerating chamber positioned at the upper part of a refrigerator body, a storage chamber at the middle part, a freezing chamber at the lower part, and independent door bodies of the chambers, wherein the storage chamber at the middle part is a temperature change chamber provided with a temperature control device; an evaporator is arranged at the wall surfaces of inner cavities of the refrigerating chamber and the temperature change chamber; a freezing evaporator is arranged in the inner cavity of the freezing chamber; a circulation fan for the heat exchange of the air in the freezing chamber and the freezing evaporator is arranged near the freezing evaporator; a defrosting device is arranged on the evaporator. The present invention solves the problems of an ordinary direct cooling refrigerator and an ordinary air-cooled refrigerator existing in the prior art and provides a split multicycle refrigerator with the advantages of the direct cooling refrigerator and the air-cooled refrigerator, a plurality of functional chambers and convenient use. The freezing chamber of the refrigerator of the present invention automatically completes defrosting operation; food in the refrigerating chamber and the temperature change chamber is not easy to dry by air; the taste of the food is kept. The split multicycle refrigerator with convenient use stores food scientifically and reasonably, and is widely used in households, guesthouses, hotels, etc.
Description
Technical field
The present invention relates to refrigerator, particularly relate to a kind of refrigerator with a plurality of chambers and multichannel circulation.
Background technology
As everyone knows, according to the storage requirement of different foods, refrigerator has a plurality of chambers that are controlled at different temperatures value scope respectively, and there are refrigerating chamber, refrigerating chamber in the chamber between basic functions, is divided into chill space and fruit and vegetable district in the refrigerating chamber again.In recent years, occur some on the market and had the refrigerator of many warm areas, this refrigerator is also set up a low-temperature space or ice warm area between chill space and freeze space, the temperature of warm area is situated between between the storage temperature of refrigerating chamber and refrigerating chamber, be generally 0 ℃ and-5 ℃, when meat was stored about-5 ℃, the degree of its surface oxidation is good than freezing preservation obviously, and the keeping-freshness storage degree has greatly improved; And meat is unlikely to too hard, and cutting is particularly suitable for the fresh-keeping storage of short-term, thereby gets consumer reception very much easily.This refrigerator is icing warm area or low-temperature space operated by rotary motion in refrigerating chamber, what also have makes a low temperature chamber separately, its refrigeration modes adopts direct-cooling type and is the multichannel discrete parallel connection that circulates: paste plate-type evaporator on the cold compartment of refrigerator internal chamber wall of (with other chambers), assembly layer posture evaporimeter in cold chamber drawer, rely on the natural convection air heat exchange, each warm area evaporimeter adopts circulation in parallel to realize independent temperature, thereby also can open or close some loop separately.There is following shortcoming in this refrigerator:
1) refrigerator does not have automatic defrosting device, uses in the process of refrigerator the user, and the hot-air of environment can enter refrigerating chamber along with the switch of door, the frosting and influenced refrigeration on the tier rack type evaporimeter of the moisture content of hot-air.Generally require user two, three months manually defrost once, it is very inconvenient to use.
2) refrigeration modes adopts heat transfer free convection to make the cooling velocity of food slower, and has the uneven temperature phenomenon in the storeroom.When refrigerating chamber tier rack type evaporimeter frosting, the front portion of evaporimeter is thicker than the rear portion by the frost layer at door place, makes the uneven temperature phenomenon even more serious, is unfavorable for the placement of food.
Also there is the full blast cold refrigerator of some many warm areas to sell on the market, the cold air forced convertion forms circulation air path at refrigerator, can improve storeroom uneven temperature situation, but the cold whole refrigeration system of refrigerator of full blast adopts a big finned evaporator, for refrigeration, freezing and other each chambers, its evaporating temperature must satisfy the requirement of refrigerating chamber, certainly will cause the refrigerating chamber heat transfer temperature difference big, foodstuff surface is air-dry easily, system effectiveness is descended, add the full blast cold refrigerator and have loss of refrigeration capacity, make it bigger than the energy consumption of ordinary straight cold refrigerator owing to the air channel is long.Simultaneously, oversize air channel structure has reduced the dischargeable capacity of refrigerator.
The problem that does not have automatic defrosting device at above-mentioned refrigerator, the day for announcing is to disclose a kind of refrigerator in December 23, publication number in 1998 the Chinese invention patent ublic specification of application that is CN1202612A, be provided with Defrost heater near its evaporimeter, be used for heating fumigators to defrost.
For many warm areas full wind cooling type refrigerator, in the day for announcing is to disclose a kind of air-cooled and direct-cooled suitching type three-door refrigerator in September 30, notification number in 1992 the Chinese utility application specification that is CN2117576U, comprise refrigerating chamber, switch chamber and refrigerating chamber, its refrigerating chamber is the air-cooled type of cooling, and refrigerating speed is fast; Refrigerating chamber is the direct-cooled type of cooling, avoids the drying of chilled food.
But,,, brought extra power consumption inevitably owing to added circulating fan for the refrigerator that adopts air-cooled refrigerating chamber.
Summary of the invention
The present invention is intended to provide a kind of discrete many cycle refrigerator that can reduce the circulating fan driving power at the existing circulating fan power consumption of the refrigerator of the air-cooled refrigerating chamber of available technology adopting problem.
The scheme that solves the problems of the technologies described above is such: construct a kind of discrete many cycle refrigerator, comprise be positioned at casing refrigerating chamber, storeroom, refrigerating chamber and above-mentioned each chamber independently the door body, described storeroom is the temperature-changing chamber that is provided with temperature control equipment; On the inner chamber wall of refrigerating chamber and described temperature-changing chamber evaporimeter is set; The refrigerating chamber inner chamber is provided with refrigerating evaporator and freezer drawer; Near described refrigerating evaporator, be provided with so that the circulating fan of air and refrigerating evaporator heat exchange in the refrigerating chamber; It is characterized in that: the refrigerating chamber back is provided with the air channel plate, and described air channel plate is divided into ante-chamber adjacent with the door body and the back cavity relative with ante-chamber with refrigerating chamber; Described back cavity be connected in order to the freezer evaporator chamber that holds described refrigerating evaporator and circulating fan, described freezer drawer is placed on ante-chamber; Be positioned at the drawer top position on the plate of described air channel air outlet is set, described air outlet is provided with the guide pad that extends to freezer drawer; Described freezer evaporator chamber also is provided with the return air inlet that leads to described refrigerating chamber ante-chamber.
As selection, in discrete many cycle refrigerator of the present invention, described freezer evaporator chamber is arranged in the back cavity, and the bottom of described air channel plate is provided with opening, and the return air inlet in described freezer evaporator chamber is connected with the refrigerating chamber ante-chamber by this opening.
As preferably, in discrete many cycle refrigerator of the present invention, described freezer evaporator chamber is arranged on refrigerating chamber top, and circulating fan makes the cold air that produces after the heat exchange flow to described refrigerating chamber back cavity, and described return air inlet is arranged on the position of described freezer evaporator chamber near the refrigerating chamber door body.
In above-mentioned discrete many cycle refrigerator, described evaporator chamber bottom is provided with dividing plate, and described dividing plate is communicated with drainpipe.
In above-mentioned discrete many cycle refrigerator, the upper surface of described dividing plate tilts to the refrigerating chamber back.
In discrete many cycle refrigerator of the present invention, described refrigerating evaporator is provided with defroster.
In discrete many cycle refrigerator of the present invention, the anterior and refrigerating chamber door body interval 4～10mm of described freezer drawer; Described freezer drawer front portion is provided with return air inlet.
In discrete many cycle refrigerator of the present invention, described refrigerating chamber inner chamber both sides and described freezer drawer both sides are 2～8mm at interval; Described freezer drawer both sides are provided with the handle that hollows out.
In discrete many cycle refrigerator of the present invention, described refrigerator evaporator is a tube-in-sheet evaporator, is arranged on the wall of refrigerating chamber back.
In discrete many cycle refrigerator of the present invention, described temperature-changing chamber evaporimeter be tube-in-sheet evaporator or be wrapped in temperature-changing chamber inner chamber wall around tubular evaparator.
In discrete many cycle refrigerator of the present invention, described temperature-changing chamber tube-in-sheet evaporator is arranged on temperature-changing chamber inner chamber top wall.
In discrete many cycle refrigerator of the present invention, described refrigerating chamber bottom is provided with the ice warm area near 0 ℃, the built-in storage drawer of described ice warm area.
In discrete many cycle refrigerator of the present invention, described refrigerating chamber is established the fruit and vegetable district, the built-in fruit and vegetable drawer in described fruit and vegetable district, described fruit and vegetable district place ice warm area above.
In discrete many cycle refrigerator of the present invention, also comprise three evaporimeter branch roads that are formed in parallel with refrigerating chamber, temperature-changing chamber, freezer evaporator, each evaporimeter branch road is serially connected with valve gear, capillary, evaporimeter respectively, and the evaporimeter branch road of described parallel connection is serially connected in the refrigerating circuit that is connected successively by compressor, condenser, liquid reservoir.
In discrete many cycle refrigerator of the present invention, also comprise to comprise three evaporimeter branch roads of refrigerating chamber, temperature-changing chamber, freezer evaporator, each evaporimeter branch road is serially connected with capillary and evaporimeter respectively, wherein two evaporimeter branch roads are connected to the output of first triple valve, the input of another evaporimeter branch road and first triple valve is connected to the output of second triple valve, and the input of described second triple valve is serially connected in the refrigerating circuit that is connected successively by compressor, condenser, liquid reservoir with the output in parallel of three evaporimeter branch roads.
In one embodiment of the invention, at the refrigerating chamber back air channel plate is set, the air channel plate is divided into ante-chamber adjacent with the door body and the back cavity relative with ante-chamber with refrigerating chamber; Be arranged in the back cavity in order to the evaporator chamber of holding described refrigerating evaporator and circulating fan, be provided with freezer drawer in the described ante-chamber; Be positioned at the freezer drawer top position on the plate of described air channel air outlet is set, described air outlet is provided with the guide pad that extends to freezer drawer; The bottom of described air channel plate is provided with the opening that leads to back cavity, forms return airway.Anterior and the refrigerating chamber door body interval 4～10mm of described freezer drawer; Described drawer front is provided with return air inlet.Described refrigerating chamber inner chamber both sides and described drawer both sides are 2～8mm at interval; Described drawer both sides are provided with the handle that hollows out.The refrigerating chamber of above-mentioned refrigerator, temperature-changing chamber, three evaporimeter branch roads of freezer evaporator formation in parallel, each evaporimeter branch road is serially connected with valve gear, capillary, evaporimeter respectively, and the evaporimeter branch road of described parallel connection is serially connected in the refrigerating circuit that is connected successively by compressor, condenser, liquid reservoir.
In another embodiment of the present invention, at the refrigerating chamber back air channel plate is set, the air channel plate is divided into ante-chamber adjacent with the door body and the back cavity relative with ante-chamber with refrigerating chamber; Be provided with in order to hold the evaporator chamber of described refrigerating evaporator and circulating fan on refrigerating chamber top, described evaporator chamber bottom is provided with dividing plate, and described dividing plate is communicated with drainpipe; The upper surface of dividing plate tilts to the refrigerating chamber back.Described evaporator chamber communicates with the refrigerating chamber back cavity, forms supply air duct.Door body position at the close refrigerating chamber of described evaporator chamber is provided with return air inlet.Be provided with freezer drawer in the refrigerating chamber, be positioned at the drawer top position on the plate of air channel air outlet is set, air outlet is provided with the guide pad that extends to described freezer drawer.Circulating fan in the evaporator chamber places the refrigerating evaporator back, and circulating fan makes the cold air that produces after the heat exchange flow to described refrigerating chamber back cavity.
The present invention compared with prior art has the following advantages and beneficial effect: refrigerating chamber is designed to air-cooled form, and the defrost of evaporimeter is finished automatically, makes the design of refrigerator have more hommization.In the circulatory system of refrigerating chamber of the present invention air channel, constituted the supply air duct of thin-and-long by air outlet and to the part that freezer drawer is extended, return airway windy road design makes ducting system have air quantity foot, windage is little, fans drive power is low advantage.The air channel structure of refrigerator only limits to refrigerating chamber inside, has reduced the loss of cold air channel to greatest extent.The refrigeration of this refrigerator, temperature-changing chamber are direct-cooling type, and it is air-dry to guarantee that again refrigerating chamber, the interior food of temperature-changing chamber are not easy, and keeps the food local flavor.Generally speaking, advantage direct-cooled, air-cooled refrigeration modes that the present invention has taken into account, it is a kind of easy to use that refrigerator is become, the most perfect refrigerator that food preservation is scientific and reasonable.
Refrigerator of the present invention is according to the requirement of many warm areas multi-chamber refrigeration, structurally with a plurality of evaporimeter parallel connections of refrigerating chamber, temperature-changing chamber, refrigerating chamber, form a plurality of independently kind of refrigeration cycle branch roads, on each branch road, be provided with the magnetic valve of this branch road on-off of control, thereby make refrigeration branch road, freezing refrigeration branch road, alternating temperature refrigeration branch road independent operating refrigeration.Because each evaporimeter branch road is arranged side by side, need not consider the matching relationship between them, can realize the disengagement area maximization respectively; Each branch road is provided with the capillary that adapts according to the evaporating temperature requirement of chamber between affiliated, and the heat transfer temperature difference of each evaporimeter is controlled in the OK range, improves the efficient of system; And the consumption of having saved the idle work that traditional cycle refrigerator brings because of coupling.
Description of drawings
Fig. 1 is the refrigerator structure side cut-away view of first embodiment of the invention;
Fig. 2 is the refrigerator body front view of first embodiment of the invention;
Fig. 3 is a first embodiment of the invention refrigerating circuit schematic diagram;
Fig. 4 is a second embodiment of the invention refrigerating circuit schematic diagram;
Fig. 5 is the refrigerator structure side cut-away view of third embodiment of the invention.
The specific embodiment
Embodiment one is referring to Fig. 1～3.
Fig. 1 has showed a kind of side sectional view of three-door refrigerator, and Fig. 2 is the Facad structure schematic diagram of this refrigerator.As depicted in figs. 1 and 2, refrigerator is divided into refrigerating chamber 10, temperature-changing chamber 20 and refrigerating chamber 30 from top to bottom, and two adjacent chambers are separated by with heat-insulation layer.At refrigerating chamber 10, mainly be made of following three parts: place the chill space of rack, by fruit and vegetable district, ice warm area that dividing plate and refrigerating chamber wall surround, the temperature of ice warm area is near 0 ℃, at the storage drawer 13 of icing the built-in push-and-pull forward or backward of warm area.Equally, but in the fruit and vegetable district built-in reservoir vessel 12 as push-and-pulls such as drawers.The fruit and vegetable district place ice warm area above.Improve as another kind, when the refrigerating chamber volume is big inadequately, can cancel fruit and vegetable district or ice warm area especially.The refrigerating chamber of refrigerator, temperature-changing chamber, refrigerating chamber all are provided with the temperature-sensitive head that detected temperatures is used, the refrigeration modes of refrigerating chamber adopts direct-cooled mode simple in structure, with low cost, be provided with on the back of the refrigerating chamber inner chamber wall adjacent with heat-insulation layer tube-in-sheet evaporator 11 stick between on the indoor courage.Middle part at refrigerator, it is the temperature-changing chamber that temperature can be regulated, the user can this chamber temperature be set to 0～-7 ℃, make food have good fresh-keeping effect, the present invention sticks on temperature-changing chamber top wall and heat-insulation layer sides adjacent with tube-in-sheet evaporator 21, principle according to the cold air sinking, evaporimeter places the top proper, and in the fresh-keeping quantity of food of this temperature band general little than refrigerating chamber or refrigerating chamber, therefore aspect ratio refrigerating chamber, the refrigerating chamber of moist closet are all little, and evaporimeter places the top to make it than placing the both sides disengagement area can be bigger.The container for storing 22 of the plug-type drawer structure be easy to get thing is set in temperature-changing chamber.In addition, the size of evaporimeter and the proportional relation of the volume of temperature-changing chamber, when only having roof evaporator to be not enough to satisfy the requiring of refrigerating capacity, the tube-in-sheet evaporator of series connection can be set on other wall of temperature-changing chamber inner chamber, or on temperature-changing chamber inner chamber wall, twine around tubular evaparator.Owing to be provided with temperature control equipment in the temperature-changing chamber, special evaporimeter is set in temperature-changing chamber, therefore can this room temperature control range be set to refrigerated storage temperature or as 15～-7 ℃ etc. wideer scope in.
Freezer compartment of refrigerator of the present invention has changed the structure of available technology adopting tier rack type evaporimeter, but adopt fan forced refrigeration mode, concrete structure is such: at the refrigerating chamber back air channel plate is set, refrigerating chamber is divided into ante-chamber adjacent with the door body and the back cavity relative with ante-chamber; Refrigerating evaporator 31 and circulating fan 32 are arranged in the back cavity, and circulating fan 32 are placed near the top of evaporimeter 31, and evaporimeter adopts the finned evaporator that increases disengagement area.Be provided with drawer and a high narrow shape drawer that places bottom and box outline to match of two wide flats in the ante-chamber of refrigerating chamber, drawer can be pushed into backward is close to the air channel plate, the top position that is positioned at each drawer on the plate of air channel is provided with the air outlet of three levels respectively, the guide pad 35 of this air outlet extends to drawer makes cold wind directly deliver in the drawer, the design of guide pad has the function of the air-supply of concentrating, and accelerates the cooling velocity of food in the drawer.In the bottom of air channel plate return air air port 36 is set, delivers to the food in the chilled air cools drawer of drawer, and flow through in freezer drawer space between the anterior and refrigerating chamber door body and the space between lower floor's drawer and the freezing intracavity bottom, turn back to the return air air port.In addition, for the operating efficiency that strengthens circulating fan, guarantee that refrigerating chamber has enough cold air circulations, and making the temperature of freezer compartment of refrigerator more even, the present invention has designed the return air wind path of pile warp freezer drawer front portion and the return air wind path of pile warp freezer drawer two sides in refrigerating chamber.Specifically: the distance between cold chamber drawer front and door body is designed to 5mm at interval, and below drawer front handle position, has oval air port 34; With refrigerating chamber inner chamber both sides and interval, described drawer both sides 3mm, forward position respectively has the handle 33 that hollows out in the drawer both sides, and this handle has in fact formed the air port of air channel circulation.Described return air wind path is like this circulation: when starting fan, the air evaporimeter 31 of flowing through blows into cold chamber drawer from thin-and-long air-supply grid 35, and a part of cold wind blows out from the anterior air port 34 of freezer drawer, is back to return air air port 36 from the bottom of drawer down.Another part cold wind blows out from the air port, two sides 33 of freezer drawer, and the long and narrow space between drawer both sides and refrigerating chamber of flowing through is back to return air air port 36.In the circulatory system of refrigerating chamber of the present invention air channel, constituted the supply air duct of thin-and-long by air outlet and to the part that freezer drawer is extended, return airway windy road design makes ducting system have air quantity foot, windage is little, fans drive power is low advantage.The air blast cooling mode has many advantages: than the discharge problem that is easier to solve automatic defrosting and defrost water, make evaporimeter keep good work efficiency owing to had the function of automatic defrosting, the forced circulation of cold air has been accelerated the cooling velocity of food, make it to stride across ice crystal when short and generate band, improved the freezing quality of food.The present invention only adopts air-cooled structure at refrigerating chamber, not only can make refrigerator have above-mentioned advantage, to such an extent as to and solved the traditional very big difficult problem of the oversize wind loss in full blast cold refrigerator air channel.
For reaching the purpose of automatic defrosting, on refrigerating chamber finned evaporator 31, defroster is set, for example interspersed defrosting heating tube on the fin.When the refrigerator controller accumulative total evaporator operation time reached certain value, refrigerator controller was connected the defrosting heating tube, at this moment, evaporimeter does not freeze, circulating fan does not move, and defrost water drops on the water receiving tank of evaporimeter below, flow to through outlet pipe on the drip tray in freezer compressor storehouse.After defrosting was finished, evaporimeter was resumed work.The method of defrost control can also be: the defrost temperature-sensitive head is set on evaporimeter, when the detected temperature value of this temperature-sensitive head reaches the setting value that starts defrost, connects the defrosting heating tube.Also can make evaporimeter energising Defrost heater work when having amassed suitable thickness white with additive method.
Further tell about the course of work of refrigerating circuit of the present invention below in conjunction with Fig. 3:
The refrigerator evaporator of refrigerator, freezer evaporator, temperature-changing chamber evaporimeter are in parallel, on each evaporimeter branch road, be serially connected with capillary (being respectively refrigerating chamber capillary 41, temperature-changing chamber capillary 42, refrigerating chamber capillary 43) respectively, capillary independently is provided with the evaporating temperature that can make chamber between difference and is set on the corresponding suitable numerical value according to the storage temperature value of chamber between separately, heat transfer temperature difference guarantees in the reasonable scope, make system matches be tending towards scientific and reasonable, thereby improved the efficient of system.Also be serially connected with magnetic valve on each evaporation branch road, magnetic valve adopts the mode that opens or closes to control the circulation of cold-producing medium.For example; when freezer compressor is in stopped status; when if the detected temperature value of refrigerating chamber temperature-sensitive head this moment is higher than the start setting value, refrigerator controller control compressor start, magnetic valve 53 are opened, and this branch road is connected in the refrigerating circuit that is connected successively by liquid reservoir 3, compressor 1, condenser 2.Because the cold that refrigerating chamber needs is maximum, therefore its working time is the longest generally speaking, if be in opening state at magnetic valve 53, and the temperature value that temperature-sensitive head detected of temperature-changing chamber or refrigerating chamber is when being higher than the setting value of its correspondence, refrigerator controller control temperature-changing chamber magnetic valve 52 or refrigerating chamber magnetic valve 51 are opened, and make the cryogenic high pressure cold-producing medium that comes out from condenser 2 enter the branch road of refrigerating chamber and temperature-changing chamber (or refrigerating chamber).Similarly; if refrigerator temperature-changing chamber evaporimeter is in running order; and refrigerating chamber (or refrigerating chamber; or the refrigerating chamber refrigerating chamber while) needs running refrigerating; then refrigerator controller sends control instruction; open the magnetic valve of respective branch, compressor operation chamber between three continuously all reaches setting shutdown temperature value.
Embodiment two,
Referring to Fig. 4, replace the original magnetic valve that is serially connected in respectively on each evaporimeter branch road with two triple valves, reduced the valve gear of evaporimeter branch road, following improvement is carried out in the refrigerating circuit of refrigerator: will comprise refrigerating chamber, temperature-changing chamber, (label is respectively 11 to freezer evaporator, 21,31) (label is respectively 41 to be connected in series the capillary that adapts with evaporating temperature on three evaporimeter branch roads respectively, 42,43), two evaporimeter branch roads of refrigerating chamber and temperature-changing chamber are connected to the output of first triple valve 61, and the input of first triple valve 61 and freezer evaporator branch road are connected to the output of second triple valve 62.The input of second triple valve 62 links to each other with condenser 2, is connected with liquid reservoir 3 after the outlet parallel connection of three evaporimeters, and on refrigerator refrigeration loop, liquid reservoir 3, compressor 1, condenser 2 are linked in sequence.In the present embodiment, first triple valve 61 and second triple valve 62 are two position three-way valves, when compressor operating, have only an evaporimeter branch road to connect refrigerating circuit.The temperature control of refrigerator needs to adopt priority principle and controls by the method that temperature is switched; at the compressor shutdown state; if certain evaporimeter branch road requires start; then compressor is started shooting and is connected this branch road; at this branch road not to stopped status and other two branch roads when requiring to start shooting; judge the evaporator temperature of the branch road that is moving earlier; if evaporator temperature does not reach certain value of setting; then triple valve does not make to switch certain value (switching temperature value) that reaches setting until evaporator temperature; switch (as freezing by the priority of setting then by elder generation; back refrigeration; the order of last temperature-changing chamber); connect another branch road; when another branch road moves to the temperature value (switching temperature value) that this branch road evaporimeter reaches setting, connect the 3rd branch road.Except pressing the changing method of temperature, can also be the changing method by the time: promptly refrigerator controller be when judging whether that carrying out branch road switches, judge whether the branch road that is moving has moved one section setting-up time, if then switch, make second branch road switch to the 3rd branch road again after operation a period of time by the priority of setting.
Embodiment three,
In embodiment one, freezer evaporator and circulating fan place in the back cavity, the degree of depth of freezer drawer is reduced, for head it off and make freezer evaporator, freezer evaporator and circulating fan are fixed on the top of refrigerating chamber away from compressor.Referring to Fig. 5, refrigerating chamber top is provided with a dividing plate constitutes an evaporator chamber of holding refrigerating evaporator and circulating fan, in evaporator chamber, circulating fan 132 places the back of refrigerating evaporator 131, and the front portion of evaporator chamber is provided with return air inlet near the door body position of refrigerating chamber.Air channel plate and back cavity are set at the refrigerating chamber back constitute supply air duct, place cold chamber drawer in the front of air channel plate, supply air duct communicates with evaporator chamber.The relevant position is provided with air outlet on the plate of air channel, and tuyere position lays respectively at the top of each drawer, and air outlet has the guide pad that extends to drawer, therefore can directly deliver to drawer inside to cold wind.The dividing plate of evaporator chamber bottom also has the effect of water receiving drainage, and it is communicated with drainpipe, and when the freezer evaporator defrost, defrost water drops on this dividing plate, discharges refrigerating chamber from drainpipe.The upper surface of dividing plate tilts to the refrigerating chamber back.Make the circulation of defrost water more smooth along and be unlikely to be trapped on the dividing plate.The return air inlet of evaporator chamber be arranged on cavity by on the facade of door body or the dividing plate front end by door place.
The refrigerating circuit of present embodiment such as Fig. 3 or shown in Figure 4, the course of work in loop is described in embodiment one and embodiment two, is not described in detail in this.
For present embodiment, can in refrigerating chamber, design the return air wind path of pile warp freezer drawer front portion or the return air wind path of pile warp freezer drawer two sides.Specifically: the distance between cold chamber drawer front and door body is designed to 5mm at interval, and below drawer front handle position, has oval air port; With refrigerating chamber inner chamber both sides and interval, described drawer both sides 3mm, forward position respectively has the handle that hollows out in the drawer both sides.Wind path circulates in the embodiment one and is described, is not described in detail in this.
Claims (15)
1. discrete many cycle refrigerator comprise refrigerating chamber, storeroom, refrigerating chamber and above-mentioned each chamber door body independently that is positioned at casing, and described storeroom is the temperature-changing chamber that is provided with temperature control equipment; On the inner chamber wall of refrigerating chamber and described temperature-changing chamber evaporimeter is set; The refrigerating chamber inner chamber is provided with refrigerating evaporator and freezer drawer; Near described refrigerating evaporator, be provided with so that the circulating fan of air and refrigerating evaporator heat exchange in the refrigerating chamber; It is characterized in that: the refrigerating chamber back is provided with the air channel plate, and described air channel plate is divided into ante-chamber adjacent with the door body and the back cavity relative with ante-chamber with refrigerating chamber; Described back cavity be connected in order to the freezer evaporator chamber that holds described refrigerating evaporator and circulating fan, described freezer drawer is placed on ante-chamber; Be positioned at the drawer top position on the plate of described air channel air outlet is set, described air outlet is provided with the guide pad that extends to freezer drawer; Described freezer evaporator chamber also is provided with the return air inlet that leads to described refrigerating chamber ante-chamber.
2. refrigerator according to claim 1 is characterized in that: described freezer evaporator chamber is arranged in the back cavity, and the bottom of described air channel plate is provided with opening, and the return air inlet in described freezer evaporator chamber is connected with the refrigerating chamber ante-chamber by this opening.
3. refrigerator according to claim 1, it is characterized in that: described freezer evaporator chamber is arranged on refrigerating chamber top, circulating fan makes the cold air that produces after the heat exchange flow to described refrigerating chamber back cavity, and described return air inlet is arranged on the position of described freezer evaporator chamber near the refrigerating chamber door body.
4, refrigerator according to claim 3 is characterized in that: described evaporator chamber bottom is provided with dividing plate, and described dividing plate is communicated with drainpipe.
5. refrigerator according to claim 4 is characterized in that: the upper surface of described dividing plate tilts to the refrigerating chamber back.
6, according to each described refrigerator in the claim 1 to 5, it is characterized in that: described refrigerating evaporator is provided with defroster.
7, refrigerator according to claim 6 is characterized in that: the anterior and refrigerating chamber door body interval 4～10mm of described freezer drawer; Described freezer drawer front portion is provided with return air inlet.
8. refrigerator according to claim 7 is characterized in that: described refrigerating chamber inner chamber both sides and described freezer drawer both sides are 2～8mm at interval; Described freezer drawer both sides are provided with the handle that hollows out.
9. according to each described refrigerator in the claim 1 to 5, it is characterized in that: described refrigerator evaporator is a tube-in-sheet evaporator, is arranged on the wall of refrigerating chamber back.
10. according to each described refrigerator in the claim 1 to 5, it is characterized in that: described temperature-changing chamber evaporimeter be tube-in-sheet evaporator or be wrapped in temperature-changing chamber inner chamber wall around tubular evaparator.
11. refrigerator according to claim 10 is characterized in that: described temperature-changing chamber tube-in-sheet evaporator is arranged on temperature-changing chamber inner chamber top wall.
12. refrigerator according to claim 10 is characterized in that: described refrigerating chamber bottom is provided with the ice warm area near 0 ℃, the built-in storage drawer of described ice warm area.
13. refrigerator according to claim 12 is characterized in that: described refrigerating chamber is established the fruit and vegetable district, the built-in fruit and vegetable drawer in described fruit and vegetable district, described fruit and vegetable district place ice warm area above.
14. according to each described refrigerator in the claim 1 to 5, it is characterized in that: also comprise three evaporimeter branch roads that are formed in parallel with refrigerating chamber, temperature-changing chamber, freezer evaporator, each evaporimeter branch road is serially connected with valve gear, capillary, evaporimeter respectively, and the evaporimeter branch road of described parallel connection is serially connected in the refrigerating circuit that is connected successively by compressor, condenser, liquid reservoir.
15. according to each described refrigerator in the claim 1 to 5, it is characterized in that: also comprise comprising refrigerating chamber, temperature-changing chamber, three evaporimeter branch roads of freezer evaporator, each evaporimeter branch road is serially connected with capillary and evaporimeter respectively, wherein two evaporimeter branch roads are connected to the output of first triple valve, the input of another evaporimeter branch road and first triple valve is connected to the output of second triple valve, and the input of described second triple valve is serially connected in by compressor with the output in parallel of three evaporimeter branch roads, condenser, in the refrigerating circuit that liquid reservoir connects successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100271705A CN1312452C (en) | 2004-05-09 | 2004-05-09 | Multi-circulation refrigerator with circulation fan and separated refrigeration and freezing compartment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100271705A CN1312452C (en) | 2004-05-09 | 2004-05-09 | Multi-circulation refrigerator with circulation fan and separated refrigeration and freezing compartment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1693825A CN1693825A (en) | 2005-11-09 |
| CN1312452C true CN1312452C (en) | 2007-04-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100271705A Expired - Fee Related CN1312452C (en) | 2004-05-09 | 2004-05-09 | Multi-circulation refrigerator with circulation fan and separated refrigeration and freezing compartment |
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| CN110375476A (en) * | 2018-04-13 | 2019-10-25 | 青岛海尔股份有限公司 | Cooling chamber is located at the refrigerator of refrigerated liner lower inside |
| CN109798713B (en) * | 2019-02-18 | 2021-05-28 | 河南新飞制冷器具有限公司 | Three-circulation air-cooled refrigerator and defrosting method thereof |
| CN115854630B (en) * | 2022-12-16 | 2023-12-01 | 合肥美的电冰箱有限公司 | Refrigerator with a refrigerator body |
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| CN1693825A (en) | 2005-11-09 |
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