CN2699204Y - Refrigerator with a freezing chamber fan - Google Patents
Refrigerator with a freezing chamber fan Download PDFInfo
- Publication number
- CN2699204Y CN2699204Y CN 200420045695 CN200420045695U CN2699204Y CN 2699204 Y CN2699204 Y CN 2699204Y CN 200420045695 CN200420045695 CN 200420045695 CN 200420045695 U CN200420045695 U CN 200420045695U CN 2699204 Y CN2699204 Y CN 2699204Y
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- chamber
- refrigerating chamber
- refrigerator
- evaporator
- refrigerating
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Abstract
The utility model discloses a refrigerator with a freezing chamber fan, comprising a freezing drawer arranged in the freezing chamber, an evaporator cavity accommodating a freezing evaporator and a fan, and a freezing evaporator defrosting device; the utility model also comprises an air passage plate arranged between the freezing drawer and the back of the freezing chamber; an air outlet is arranged on the air passage plate and the top of the freezing drawer; the air outlet is equipped with a guide block extending to the freezing drawer. The utility model provides a refrigerator with cycle freezing and concentrating air supply so as to speed up the cooling rate of the freezing foodstuff; the defrosting process of the freezing chamber of the refrigerator can be automatically done and the foodstuff is difficult to be air-dry in a temperature changing room; the utility model has the advantages of maintaining the local flavor of foodstuff, easy use of the refrigerator, and scientific and reasonable preservation, so that the utility model can be widely applied to places like families, hotels, restaurants, etc.
Description
Technical field
The utility model relates to refrigerator, particularly relates to a kind of refrigerator with refrigerating chamber fan.
Background technology
The refrigeration modes of refrigerator comprises the direct-cooled mode of heat transfer free convection and the air cooling way of fan forced convection, in recent years, most refrigerator adopts the direct-cooling type refrigeration modes on the market, and be the direct cooling refrigerator of a plurality of evaporimeter parallel connections, make a plurality of warm areas (or chamber) of refrigerator can independently control temperature, more welcome refrigerator is except refrigerating chamber and refrigerating chamber, also set up a low temperature chamber or ice greenhouse, temperature is situated between between the storage temperature of refrigerating chamber and refrigerating chamber, be generally 0 ℃ and-5 ℃, be particularly suitable for the fresh-keeping storage of meat short-term, easily cutting.Artificial defrost, cooling velocity are slow, the uneven temperature shortcoming but direct cooling refrigerator exists.On the other hand, also have 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 its exhaust outlet setting is too simple, and air quantity disperses.Simultaneously, oversize air channel structure has reduced the dischargeable capacity of refrigerator.
The utility model content
The utility model is intended to solve in the prior art wind cooling refrigerator wind path existing problem that circulates, and the refrigerator that provides a kind of refrigerating chamber to concentrate air-supply is to overcome the deficiencies in the prior art.
The scheme that solves the problems of the technologies described above is such: a kind of refrigerator with refrigerating chamber fan is provided, comprise the freezer drawer that places in the refrigerating chamber, the evaporator chamber of holding refrigerating evaporator and fan, and refrigerating evaporator defrosting device, also comprise the air channel plate that is arranged between described freezer drawer and the refrigerating chamber back, 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.
In the above-mentioned refrigerator, 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.Anterior and the refrigerating chamber door body interval 4～10mm of described freezer drawer; Described freezer drawer front portion is provided with return air inlet.Described refrigerator top is refrigerating chamber, and the middle part is a temperature-changing chamber, and the bottom is a refrigerating chamber, and described each chamber is equipped with temperature control equipment, on the inner chamber wall of described temperature-changing chamber and refrigerating chamber evaporimeter is set.In the above-mentioned refrigerator, 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 the above-mentioned refrigerator, described evaporator chamber places the refrigerating chamber back, and the bottom of described air channel plate is provided with return airway.Or, described evaporator chamber is arranged on refrigerating chamber top, described evaporator chamber bottom is provided with dividing plate, and described dividing plate is communicated with drainpipe; Described evaporator chamber with communicate with the supply air duct that refrigerating chamber back is surrounded by the air channel plate, described evaporator chamber near refrigerating chamber the door body position return air inlet is set.
The utility model compared with prior art has the following advantages and beneficial effect:
1. refrigerating chamber is concentrated air-supply, accelerates the cooling velocity of frozen food, improves the food storing quality.
2. refrigerating chamber return air wind path multichannel design has guaranteed air circulation.
3. the refrigerating chamber of refrigerator is air-cooled, and temperature-changing chamber, refrigerating chamber are direct-cooling type, has taken into account advantage direct-cooled, air-cooled refrigeration modes, and it is a kind of easy to use that refrigerator is become, the most perfect refrigerator that food preservation is scientific and reasonable.
4. a plurality of evaporimeter parallel connections of refrigerator form a plurality of independently kind of refrigeration cycle branch roads, and 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 the utility model first embodiment;
Fig. 2 is the refrigerator body front view of the utility model first embodiment;
Fig. 3 is the utility model first embodiment refrigerating circuit schematic diagram;
Fig. 4 is the refrigerator structure side cut-away view of the utility model second embodiment.
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 utility model 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 instrument has roof evaporator to be not enough to satisfy 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 utility model adopts fan forced refrigeration mode, and 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 airway 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 return airway.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 utility model 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 airway 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 airway 36.In the circulatory system of refrigerating chamber of the present utility model 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 utility model 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 the utility model refrigerating circuit 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,
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.Wind deflector and inner chamber are set at the refrigerating chamber back constitute supply air duct, place cold chamber drawer in the front of wind deflector, supply air duct communicates with evaporator chamber.The relevant position is provided with air outlet on wind deflector, 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 as shown in Figure 3, the course of work in loop is described in embodiment one, 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 (7)
1. refrigerator with refrigerating chamber fan, comprise the freezer drawer that places in the refrigerating chamber, the evaporator chamber of holding refrigerating evaporator and fan, and refrigerating evaporator defrosting device, it is characterized in that: also comprise the air channel plate that is arranged between described freezer drawer and the refrigerating chamber back, 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.
2. refrigerator according to claim 1 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.
3. refrigerator according to claim 1 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.
4. refrigerator according to claim 1 is characterized in that: described refrigerator top is refrigerating chamber, and the middle part is a temperature-changing chamber, and the bottom is a refrigerating chamber, and described each chamber is equipped with temperature control equipment, on the inner chamber wall of described temperature-changing chamber and refrigerating chamber evaporimeter is set.
5. refrigerator according to claim 1, 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.
6. according to claim 1 or 2 or 3 or 4 or 5 described refrigerators, it is characterized in that: described evaporator chamber places the refrigerating chamber back, and the bottom of described air channel plate is provided with return airway.
7. according to claim 1 or 2 or 3 or 4 or 5 described refrigerators, it is characterized in that: described evaporator chamber is arranged on refrigerating chamber top, and described evaporator chamber bottom is provided with dividing plate, and described dividing plate is communicated with drainpipe; Described evaporator chamber with communicate with the supply air duct that refrigerating chamber back is surrounded by the air channel plate, described evaporator chamber near refrigerating chamber the door body position return air inlet is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420045695 CN2699204Y (en) | 2004-05-09 | 2004-05-09 | Refrigerator with a freezing chamber fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420045695 CN2699204Y (en) | 2004-05-09 | 2004-05-09 | Refrigerator with a freezing chamber fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2699204Y true CN2699204Y (en) | 2005-05-11 |
Family
ID=34775724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420045695 Expired - Fee Related CN2699204Y (en) | 2004-05-09 | 2004-05-09 | Refrigerator with a freezing chamber fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2699204Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338528A (en) * | 2010-07-12 | 2012-02-01 | 松下电器产业株式会社 | Refrigerator |
| CN103471317A (en) * | 2013-09-26 | 2013-12-25 | 合肥美的电冰箱有限公司 | Air cooling refrigerator |
| WO2022057257A1 (en) * | 2020-09-15 | 2022-03-24 | 海信（山东）冰箱有限公司 | Refrigerator |
| WO2024120394A1 (en) * | 2022-12-07 | 2024-06-13 | 青岛海尔电冰箱有限公司 | Refrigerating and freezing device |
-
2004
- 2004-05-09 CN CN 200420045695 patent/CN2699204Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338528A (en) * | 2010-07-12 | 2012-02-01 | 松下电器产业株式会社 | Refrigerator |
| CN103003650A (en) * | 2010-07-12 | 2013-03-27 | 松下电器产业株式会社 | Refrigerator |
| CN103003650B (en) * | 2010-07-12 | 2015-07-15 | 松下电器产业株式会社 | Refrigerator |
| CN103471317A (en) * | 2013-09-26 | 2013-12-25 | 合肥美的电冰箱有限公司 | Air cooling refrigerator |
| WO2022057257A1 (en) * | 2020-09-15 | 2022-03-24 | 海信（山东）冰箱有限公司 | Refrigerator |
| WO2024120394A1 (en) * | 2022-12-07 | 2024-06-13 | 青岛海尔电冰箱有限公司 | Refrigerating and freezing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050511 |