CN2886466Y - Direct-cooling freezer - Google Patents

Abstract

The utility model relates to a direct freezing cold storage container comprising a casing and a gate body with an evaporator and a condensator on the casing characterized in that an air channel and a driving fan are equipped in the heat-insulating layer of the casing, wherein the two sheds of the air channel are respectively installed on the back and lateral part of the casing. The lateral face of the door panel of the said gate body is provided with reinforcing flange. The utility model solves a technical problem of uneven temperature distribution in the case and dimensional instability of the gate. Electrical power consumption of the fridge amounts to a 10% reduction. The manufactured product is applicable to export to countries like Europe and America.

Description

A kind of direct-cooled refrigerating box

Technical field

The utility model relates to the refrigerator technical field, more particularly, relates to a kind of direct-cooled refrigerating box.

Background technology

In recent years, international trade activity is frequent day by day, and China becomes the world production base of most of household appliances with the advantage of low production cost, and domestic many refrigerator producer all falls over each other to be in harmony the exit order, seizes the overseas market.American-European countries requires more and more strictness to the energy consumption of household appliances, and whether the energy-conservation complexity that is directly connected to product development reaches the outlet sale of product in the future to the outlet refrigerator.Market survey shows: the consumer of many American-European developed countries is accustomed to a large amount of foods of disposable purchase, is stored at slowly consumption in the refrigerator.Because a large amount of vegetables, fruit, beverage, packaged food etc. all need refrigerated storage, this has just proposed high requirement to the refrigeration volume of refrigerator; Obviously, general household refrigerator-freezer is difficult to satisfy this requirement because volume is limited, and the refrigerator of the big volume of clamshell doors has enough refrigerating spaces, but the price of clamshell doors large refrigerator is often very expensive, and is not suitable for renting a house and unmarried consumer who lives and the family that some are not too rich.They need a kind of big volume refrigerating box of high quality and at a reasonable price, satisfy the refrigeration requirement of a large amount of food.

The current full refrigerating box in refrigerator market is much, and major part is the low direct-cooled case of price comparison, but its volumetric ratio is less, all below 200L, is difficult to satisfy the requirement of above-mentioned user to big refrigeration ability basically.Why rarely has big volume refrigerating box on the market? this is to have following difficulty because adopt conventional art to develop big refrigerating box: traditional direct-cooled refrigerating box adopts the free convection mode to freeze, if the refrigerator volume is too big, it is serious unusually that the problem of temperature distributing disproportionation will become, make the temperature inside the box be difficult to control, the cold deficiency, the cold waste is difficult to satisfy the energy-conservation requirement of increasingly stringent; The second, because big volume freezer door body is too big, be easy to generate moderate finite deformation behind the door foaming, influence the refrigerator outward appearance even cause cold to leak.

The utility model content

The utility model is at the defective of prior art, and purpose solves big, the yielding technical problem of gate body of the interior temperature difference of case of big refrigerating box, provides a kind of the temperature inside the box equally distributed energy-conservation direct-cooled refrigerating box.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of direct-cooled refrigerating box, comprise casing, door body, evaporimeter on casing and condenser are provided with air channel and drive fan in the heat-insulation layer of casing, the both ends open in air channel is respectively on the back and sidepiece of casing; The door face board sidepiece of described door body is provided with the reinforcement flange.

In the above-mentioned direct-cooled refrigerating box, in described door body, establish stiffener.

In the above-mentioned direct-cooled refrigerating box, establish through hole on the described stiffener.

In the above-mentioned direct-cooled refrigerating box, described stiffener is a hole shape concaveconvex structure, and described through hole is distributed in the recessed hole groove.

In the above-mentioned direct-cooled refrigerating box, the air outlet in described air channel is at the top of casing back, and described evaporimeter is in the air outlet bottom in air channel, and described drive fan is in air outlet.

In the above-mentioned direct-cooled refrigerating box, the back of the body of casing is provided with plate after the hollow back formula, and described condenser is fixed on after the hollow back formula on the plate.

The beneficial effects of the utility model are:

1) in direct-cooled case, fan is set, cold air circulates repeatedly in the driving box, impels the temperature inside the box to be evenly distributed, and avoids higher or on the low side and the not enough or waste of cold that cause of local temperature, effectively solved the energy consumption problem of refrigerator, made the temperature control of this product more accurate.

2) after the door face board sidepiece is strengthened handling, efficiently solve the phenomenon of Men Tishou waist, make door envelope and door inner chamber, casing closely cooperate, stop cooling gas leakage in the case, make product energy consumption descend, meet standard-required.Stiffener in the door body is improved the rigidity of an inner chamber, has solved door body bubbling defective.

3) unique back hanging type condenser structure design make condenser can be directly and surrounding air carry out heat exchange, improved the radiating effect of condenser, the material cost that reduced essential condensation area, suitable attenuating; And this structure has been protected condenser effectively, makes it not fragile in transportation, use.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:

Fig. 1 is a direct-cooled refrigerating box structural representation of the present utility model;

Fig. 2 is the air channel structure schematic diagram of the direct-cooled refrigerating box of the utility model;

Fig. 3 is a condenser scheme of installation of the present utility model;

Fig. 4 is the distortion schematic diagram of common gate body;

Fig. 5 is the door face board structural representation of common gate body;

Fig. 6 is a door face board structural representation of the present utility model;

Fig. 7 is the A portion enlarged drawing of Fig. 6;

Fig. 8 is the structural representation of door body stiffener of the present utility model;

Fig. 9 is installation site, an air channel of the present utility model schematic diagram.

The specific embodiment

Referring to Fig. 1, a kind of direct-cooled refrigerating box of big volume, the computer temperature control mode of employing accurate temperature controlling, the temperature adjustment control section is on the cover plate on case top, because product is at external client, need internal volume bigger, Aspect Ratio also need meet use habit, for example the refrigerating box of total measurement (volume) 345L, width is designed to 590mm, height is 1752mm, and the door body is whole big simple gate, sees Fig. 1.But casing is high more, the upper and lower temperature difference that cold air sinks to causing is just obvious more, be difficult to satisfy the energy consumption standard of European A level, for the temperature inside the box field that makes direct-cooled refrigerating box evenly distributes, design cycle air channel in case, quicken the convection current of cold air, temperature is tending towards evenly, can solve the technical barrier that traditional direct cooling refrigerator free convection mode cann't be solved.Referring to Fig. 2, ducting system is made up of fan 4, fan mounting box 5 (comprising air outlet), air channel 6 and return air inlet 7, return air inlet guard shield 8.Air channel 6 is imbedded in the alveolar layer, fan mounting box 5 and return air inlet guard shield 8 are installed in perforate on box cavity, the air outlet design is at the thicker casing back of alveolar layer (the back alveolar layer of casing is thicker than sidepiece, and casing back is the back hanging type condenser fixedly, will mention hereinafter in detail).Referring to Fig. 9, be pasted with evaporimeter on the back inner chamber of casing, fan mounting box 5 is above evaporimeter, in order to avoid being close to the evaporimeter on the cabinets cavity, return air inlet is arranged on the casing right side, and the place of curving, air channel has been carried out the streamline transition, to reduce the resistance of cold air flow.During refrigerator work, cold air enters the air channel from the return air inlet of casing lower end in the fans drive case, enter the casing upper end from air outlet, cold air circulates so repeatedly in the case, impel the temperature inside the box to be evenly distributed, avoid local temperature higher or on the low side and the cold that causes not enough or waste, effectively solved the energy consumption problem of refrigerator, make the temperature control of this product more accurate.

On the other hand, insufficient strength appears in excessive door body easily, and the refrigerator internal-external temperature difference is big, and alveolar layer can cool off contraction when compressor cooling, because the rigidity of door lumen side is lower than the rigidity of door face board side, the amount of contraction of door lumen side can be greater than the amount of contraction of door face board side; And, shrinks the stronglyest because a door body mid portion lacks constraint, and occurring easily as Men Tishou waist distortion that the dotted line of Fig. 4 is represented, among Fig. 4, left figure is the front elevation of a body, inwardly narrows the most obvious in the middle part of the body.Right figure is the side view of a body, and dotted line represents that a body outwards bloats easily.The metaboly of door body is a ubiquity, but general door body is less owing to volume, and door face board rigidity is enough, it is less that it receives the waist deflection, is unlikely to influence the performance of refrigerator, but for the gate body, its deflection is bigger, not only influence outward appearance, the more important thing is that gap can appear in the cooperation of Men Tiyu casing, cold air leaks, the working time of compressor is prolonged, energy consumption increases, even the fault that unusual frosting is frozen occurs, and therefore must solve the problem of door body deformability.Can improve a body rigidity by the thickness (door face board thickness is generally 0.5mm) that increases door face board simply, alleviate deflection, but bring the rising significantly of cost, should not directly adopt.Compare through model analysis and test, make rigid design to reach the purpose of taking into account Cost And Performance, improved the integral rigidity of door face board in door side portion.Referring to Fig. 5～7, Fig. 5 is common door face board structure, from the door face board sectional view of Fig. 5, can see, three of door face boards around.The door inner chamber and the alveolar layer of not shown door body among Fig. 5, door inner chamber are at the interior back side of door face board, and alveolar layer is between door face board and door inner chamber.For the gate body, through analysis of experiments, the sidepiece insufficient rigidity of door face board is the main cause that influences the distortion of Men Tishou waist, for this reason, structure to the side is improved design, and referring to Fig. 6 and Fig. 7, the door face board structure after the optimization is to strengthen vertically bending to door body inner surface behind the flange to the vertical bending place design of door body inner surface in the side again, increase the sidepiece rigidity of whole door body, suppressed the receipts waist distortion of door body effectively.

Referring to Fig. 8, be lower than the distortion of the external drum of door that the rigidity of door face board side causes for the rigidity that solves the door lumen side, not enough at door inner chamber rigidity, increasing a metal reinforcing plates near door inner chamber place, stiffener is provided with bubble material infiltration through hole, in order further to strengthen the rigidity of stiffener, stiffener is designed to cheat the concaveconvex structure of shape, through hole then is distributed in the recessed hole groove.After the door body is annotated bubble, put into stiffener immediately, cover the inner chamber slaking of foaming then; Foamed material overflows from the through hole that reaches all around of stiffener, and the stiffener and the alveolar layer at door inner chamber place are combined closely, and has strengthened the rigidity of door lumen side greatly, efficiently solves the problem of a body deformability.

For the power consumption that reduces refrigerator makes more power saving of refrigerator, on refrigerator structure, taked the plug-in mode of condenser.Condenser is the main thermal component of refrigerator, most of refrigerator products all with design of condenser in the refrigerator left and right sides, be close on the biside plate, by side plate conduction distribute heat.This method for designing can not influence the refrigerator outward appearance, but area of dissipation, material cost that need be bigger be higher, manufacturing process is complicated, the condenser maintenance difficult, referring to Fig. 3, the utility model is with the condenser 3 outer casing backs that hang over, adopt the threaded pipe type structure, compare with internal-mounted condenser common on the market, the radiating efficiency of back hanging type condenser is obviously high, the condenser pipe fiber tube that dispels the heat is outward strengthened the radiating effect of condenser, identical casing, take to carry on the back and hang the size that condenser can reduce condenser, saved production cost.If only be simply condenser to be arranged on refrigerator back, not only influence the outward appearance of refrigerator, and in transportation, use, cause the breakage of condenser easily, cause that cold-producing medium leaks, and therefore, is necessary to do the architecture advances of protective.See Fig. 3, the back plate of refrigerator is a hollow back formula structure, forms the district of caving in, and condenser 3 is installed in this district of caving in, and condenser 3 is fixed on after the hollow back formula on the plate 10 by folder 9 and tapping screw are installed.Condenser 3 spray treatment play beautification function.

Result of the test shows, direct-cooled refrigerating box of the present utility model is compared with the general refrigerating box with internal volume, its compressor Homes Using TV has reduction largely, reduce to about 50% by general 65%, complete machine power consumption descends about 10%, the temperature inside the box more becomes evenly, and the gate body does not have the defective of distortion, external drum yet.

Claims (7)

1, a kind of direct-cooled refrigerating box comprises casing, door body, and evaporimeter on casing and condenser is characterized in that, are provided with air channel and drive fan in the heat-insulation layer of casing, and the both ends open in air channel is respectively on the back and sidepiece of casing; The door face board sidepiece of described door body is provided with the reinforcement flange.

2, direct-cooled refrigerating box according to claim 1 is characterized in that, establishes stiffener in described door body.

3, direct-cooled refrigerating box according to claim 2 is characterized in that, establishes through hole on the described stiffener.

4, direct-cooled refrigerating box according to claim 3 is characterized in that, described stiffener is a hole shape concaveconvex structure, and described through hole is distributed in the recessed hole groove.

According to claim 1 or 2 or 3 or 4 described direct-cooled refrigerating boxes, it is characterized in that 5, the air outlet in described air channel is at the top of casing back, described evaporimeter is in the air outlet bottom in air channel, and described drive fan is in air outlet.

According to claim 1 or 2 or 3 or 4 described direct-cooled refrigerating boxes, it is characterized in that 6, the back of the body of casing is provided with plate after the hollow back formula, described condenser is fixed on after the hollow back formula on the plate.

7, direct-cooled refrigerating box according to claim 5 is characterized in that, the back of the body of described casing is provided with plate after the hollow back formula, and described condenser is fixed on after the hollow back formula on the plate.

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