CN107949759A - It is exclusively used in the rapid cooling device of domestic applications - Google Patents

Abstract

Aim at the built-in family expenses rapid cooling device of domestic applications design.Thermal part (the compressor 6 of the rapid cooling device, condenser 7) be positioned at the rapid cooling device rear wall (24) top on and base (4) in, in order to promote the ventilation of thermal part, and in order to give inner space (33) slot milling, which is used to accommodate baking sheet, baking tray or the grill identical with those sizes of the built-in oven of traditional family expenses.

Description

It is exclusively used in the rapid cooling device of domestic applications

Technical field

The present invention relates to the rapid cooling device for aiming at domestic applications design.In fact, the rapid cooling device has been designed Into easy to effectively working in the typical home structure for needing particular/special requirement relative to industrial trade.

Background technology

Rapid cooling device is Quick cooling equipment, the temperature of the food of heat can be reduced rapidly (about 90 from cook temperature Minute) to 3 DEG C (rapid coolings), and -18 DEG C of temperature is thoroughly reduced in the case of freezing, so that food be stored in In refrigerator or refrigerator-freezer.This processing reduces bacterial multiplication while food value is kept.In fact, known snap frozen Moisture contained in food is caused to form microcrystal, and slow freezing results in coarse crystal, this destroys same food on the contrary The molecular structure of vitamin and the molecular structure of protein.It is further obvious that more rapidly frozen food, easier Prevent bacterial multiplication.

This technology is used in particular in professional kitchens and other business activities in dining room, icecream parlor, sweet shop etc.. Therefore, rapid cooling device is mainly industrial or professional.

So-called specialty rapid cooling device is characterized by quite huge structure, similar to cabinet, is provided with for holding Receive heat pump system " heat " functional component lower part, the heat pump system is more at this at the top for the compartment for being divided into multiple shelves Pending food is placed on a shelf.Known this " heat " component includes being connected to the compression for cooling fluid of condenser Machine.Fan is installed near condenser, to cool down same condenser.Then evaporator is installed in food compartment.

It is also known that in such systems, cooling fluid is compressed in compressor, the cooling fluid in the compressor It is overheat.Then hot fluid enters condenser, within the condenser hot fluid and surrounding air heat exchange, this also has benefited from forcing Surrounding air impacts the fan of the condenser.By discharging heat, cooling fluid cools down.Then, cooling fluid is by expansion Equipment, such as capillary, leave bloating plant postcooling fluid and are subjected to quick volumetric expansion, this cause cooling fluid into one Step cooling.The cooling fluid reaches evaporator, is included in evaporator in cooling fluid and food compartment as described above Air carries out heat exchange.Another fan forces the air-impingement evaporator of compartment, so as to accelerate to cool down.Finally, absorbed every The hot fluid of air returns to compressor in room, to start new circulation.

In order to realize the above-mentioned performance on cooling temperature within the acceptable time, it is necessary to using with possibly even Reach the powerful compressor of 5-8kW.Therefore, the size of the corresponding component of the size of the compressor and cooling circuit is phase When huge.However, for professional use, from the perspective of design, the region for accommodating this machine need not be special Solution.

From the perspective of the angle and health of sense organ, it is contemplated that reduce rapidly the above-mentioned importance of temperature, family expenses are rapidly Cooler also just becomes to be widely used.

Different from the rapid cooling device of industrial application, for the space considered, family expenses rapid cooling utensil has clearly More limitations require.In fact, kitchen furniture is standardization, built-in household electrical appliance are particularly, because design reasons are also got over More continually to be used.

Meanwhile performance, that is, the cooling capacity within the gratifying time, it is necessary to the performance with the cooler of specialty Compare, to prove that domestic applications are rational.Therefore, in the normed space of built-in household electrical appliance, it is necessary to which there are above-mentioned Both function compartment and food compartment.

In order to meet these requirements, the built-in rapid cooling device of family expenses of the prior art includes having to be baked with conventional internal formula The identical units of furniture of case size.The units of furniture is divided into two compartments, left compartment and right compartment, and one in two of which compartment It is a that usually there is the size bigger than another." heat " compartment of less compartment for accommodating heat pump system, and larger compartment Then it is used for pending food.

It is evident that above-mentioned construction forces the size for reducing the grill for food, baking tray or baking sheet.In other words, no The baking sheet identical with the baking sheet size for oven may be used, but standard-sized utensil is used usually in rapid cooling device Baking sheet (standard EN 631), the utensil baking sheet are absolutely unsuitable in built-in oven.

This causes the producer --- producer for typically manufacturing such as built-in oven of conventional domestic electric appliance --- necessary Specific resources are put into manufacture the baking tray for being only used for these household electrical appliance, baking sheet or grill, cause the obvious increase of production cost.

For example, the built-in rapid cooling device of family expenses is disclosed in EP1098149, including it is basic with conventional internal formula oven The identical units of furniture of upper size.Air circulation includes the preceding intake being arranged in units of furniture lower edge and is arranged on same Preceding outlet in the top edge of units of furniture, therefore air is guided to continuous deflection twice, (deviations, turns To) path, every time deflection be in 90 degree.

Thermal part is accommodated in the compartment for the whole height for occupying left back corner, therefore for the whole height of function compartment For degree, reduce the space available for pending food, it is therefore necessary to using customization and roasting with pentagon periphery Frame, baking tray and baking sheet, with the obvious increase of production cost.

In this rapid cooling device, the air mass flow of level suction reaches rear wall, and air mass flow is inclined upwards at rear wall It turn 90 degrees, into the above-mentioned compartment in left back corner.Then air mass flow moves straight up, through fan, then surrounds Compressor and condenser.When air reaches the top of left compartment, which must deflect another 90 degree, flatly to reach Top edge simultaneously leaves from antetheca.

Alternately, for the above-mentioned located lateral of " heat " component, the prior art contemplate relative to food preparation compartment or Food preparation case in top or in lower part and in condenser below and compressor all the time in lower part and later, And " cold " component (evaporator) is conventionally positioned at top and at the level higher than condenser.In such configuration, due to cold Condenser is lower than evaporator, so condenser reduces the depth of refrigeration case on top, while compressor reduces refrigeration in lower part The depth of case, the fact that cause the entire depth of compartment to be reduced.Therefore, compartment can accommodate with standard instrument size or compared with Pallet of small size etc..

It is also noted that the construction is relative complex in a word, with obvious high production cost.

The content of the invention

It is therefore an object of the present invention to provide the rapid cooling device for being exclusively used in domestic applications, which can be Traditional baking tray, baking sheet or grill are wherein accommodated completely, or, in other words, there are those with being used for built-in oven The identical supporting item for food of size, but it must assure that high-performance and manufacture will be simple and have cost effect at the same time Benefit.

In order to reach such purpose, it is clear that the located lateral of compressor, condenser and associated fan can not possibly be kept.By In firm the reason for describing, it is also not possible to place them in the top or lower part and rear of compartment.

Therefore, the different arrangements of the different arrangements of " heat " component, i.e. compressor and condenser have been invented, this will be solved All disadvantages mentioned above, and will ensure that simple in structure and cost benefit.

Then, the first object of the present invention is built-in family expenses rapid cooling device, which is included with refrigeration The quick chilling system of circulation, wherein, " heat " component, that is, compressor, condenser and relevant fan are contained in the spy outside refrigeration case Determine in base.

The second object of the present invention is to make simple and cost-efficient rapid cooling device.

3rd purpose is a kind of rapid cooling device, it can be accommodated with being used for conventional internal for domestic applications wherein The size of formula oven identical baking sheet, baking tray or grill.

4th purpose is a kind of rapid cooling device for the refrigeration system for being arranged to have optimum performance.

Another purpose is the kind of refrigeration cycle for being used to cool down built-in family expenses rapid cooling device in a simple and advantageous manner " heat " component method.

Brief description of the drawings

With reference to following attached drawing, in the description for the embodiment that limitation is illustrated rather than from below, family expenses are rapidly cold But other feature and advantage of device will become more apparent, wherein：

- Fig. 1 is the schematic side according to the present invention with the kitchen furniture unit for being contained in rapid cooling device therein Sectional view, the rapid cooling device are also at sectional view；

- Fig. 2 shows the rear isometric view of the rapid cooling device of the present invention；

- Fig. 3 shows the schematic front isometric view of the rapid cooling device for the Fig. 2 for opening food preparation compartment door.

Embodiment

Idea behind the present invention is two " heat " components of positioning, the i.e. compressor of refrigeration system and condensation in top Device.But in an experiment it has been observed that above-mentioned positioning causes the problem of many mainly related with cooling air delivery.

Particularly, accurately research flow after, it is known that when cooling pipe be positioned at built-in units of furniture after During face, how in " heat " aeration portion, --- condenser and compressor --- above interacts the air mass flow generated.Pass through Movement of the cooling air delivery entered in the preceding part of the rapid cooling device of the prior art is observed, and its in the upper of condenser Trip begins one's study with the behavior at downstream two.

It has to be taken into account that according to the position of condenser, it is anterior, have on top and in lower part, rapid cooling utensil Hole, the hole are typically to have fin, to allow to enter from the air of external suction by the fan near condenser, So as to cool down condenser in itself.The air is blown into the bottom of the rapid cooling device of built-in units of furniture after condenser is cooled down The rear portion of seat.In this region, existing in units of furniture allows the space left of hot-air, and the hot-air is significantly necessarily not During units of furniture can be stuck in itself.

In fact, the heat exchange surface of condenser, parallel to the direction for entering air, this enters air relative to rapidly cold But the antetheca of device is by orthogonal suction.This is the lower section that condenser is positioned in because of exhauster(-tor, therefore the fan is also Horizontal, which has the rotation axis for being orthogonal to a surface, which blows to cooling air on the surface.

In this position, the air of suction necessarily corresponds to the deflection that fan is subjected to 90 °.Measured by testing, It is unexpectedly observed that, this deflection implies suitable correlative flow loss, this is possible be due to because same deflection causes And form the loss of pressure caused by turbulent flow.

The measurement of above-mentioned cooling air delivery to need to think deeply：The pressure loss may influence system effectiveness.In fact, can To assume to cannot ensure effective cooling of condenser without the flow of optimization, cause the unoptimizable performance of whole system (COP).

Now, have already envisaged for attempting the flow for producing the cooling air, which is probably most orderly, i.e. for cold It is at the downstream and upstream two of condenser, also correspond to for the whole path of the cooling air of condenser in itself be most probable certainly Straight line.

With reference to figure 1, the lateral cross of a piece of furniture F is shown, which is provided with compartment S1, which, which is used to accommodate, has Have it is standard-sized, for built-in household electrical appliance such as conventional oven or rapid cooling device through cooking food.It can such as see Arrive, a piece of furniture can according to units of furniture use in itself is needed or as usual included using preference more every Room S2, S3, so that columnar units of furniture F is formed, to accommodate more household electrical appliance, kitchen tools or food.In short, units of furniture F is provided with the open front O1 in the lower part being positioned near the (not shown) of floor, (does not show with completely conventional grid usually Go out), particularly when units of furniture is used for built-in refrigerator.Behind opening, units of furniture F is defined for vent air Into the horizontal passageway P of inbound traffics.Near the rear wall W of furniture unit F, the path P has upper window O2, and window allows on this Air rises upwards as shown by arrows, into compartment S2 above.Compartment S2 on upper wall again with their own with it is above-mentioned The window O3 of the window O2 alignment of path P, window O3 are directly connected with compartment S1.Similarly, compartment S1 with it is above every Another window O4 also to align with corresponding window O2 and O3 is provided between the S3 of room.Finally, vent air is in by positioning The window O5 that leaves having in the upper wall of unit F leaves compartment S3, and therefore also leaves furniture unit F.

The rapid cooling device 1 for fresh food or through cooking food is accommodated in compartment S1.As in Fig. 2 and Fig. 3 compared with Show goodly, which is the parallelepiped of substantially box-like, is had to reversibly (reversibly, can turn over With the turning) container 2 (Fig. 3) of enclosed food treatment box 3.

It should be noted that in the description of the present invention, hereinafter with regard to times of rapid cooling device or built-in units of furniture The term above, below of the position of what element or component, upper and lower, right, left, vertical, horizontal etc. shall be construed as referring to Object under its regular service conditions and under assembling condition.Therefore, in addition when not installing rapid cooling device, this area in a word Technical staff can also understand above-mentioned reference term.

Container 2 includes front door 20, and the front door is horizontally hinged to open, or constructs (not shown), Men Ye according to second Can be vertically hinged so as to lateral opening.The series of orders C with relevant display is provided with the top of door 20, to set Determine the function of rapid cooling device 1.In addition, container 2 is made of two side walls 21, upper wall 22, lower wall 23 and rear wall 24.Side wall 21, Upper wall 22 and lower wall 23 are substantially flat.

Advantageously, rear wall 24 is shaped so as to form base 4, to accommodate the heat pump refrigeration system of rapid cooling device 1 " heat " component.Preferably, with reference to Fig. 1, rear wall 24 is the part with 2 separated housing of container for including case 3.Especially, should Rear wall 24 includes Part I 241 and Part II 242, which generally downward and tilts backwards, i.e., away from door 20, this Part II is substantially vertical, i.e., orthogonal with lower wall 23.As shown in fig. 1, in addition the housing of case 3 (is not shown by two side walls Go out), lower wall 31 and upper wall 32 form, the upper wall and lower wall are engaged with the rear wall 24.In fact, rear wall 24 will form container 2 With both rear walls of case 3.Alternately, side wall 21, upper wall 22, lower wall 23 and rear wall 24 may belong to a housing, i.e. container 2, the Inner Constitution refrigeration case of the container.

Therefore the base 4 limited includes the supporting item 5 of preferably shelf-like, to support compressor 6, condenser 7 and be used for The cooling device 8 of compressor and condenser.

Especially, supporting item 5 is provided with hole, to allow cooling air by that may hinder air mass flow without any Barrier.Be fixed with the cooling device 8 on the supporting item 5, which includes at least fan, the fan be suitable for from Aspirate air and for air forcibly directly to be shifted onto to condenser 7 in units of furniture bottom.In fact, condenser 7 is installed on The surface of fan 8, so as to the air-impingement just blown out in itself by fan completely.Deposited in the side of 8/ condenser of fan, 7 component In compressor 6 so that the compressor air that can also be cooled at least in part skims over.

Need to be kept in mind that, therefore the Part II 242 of rear wall 24 is limited to the expansion corresponding to Part I 241 The suction guide portion with small cross sections before (expansion, expansion) part.Therefore, corresponding to the sky of Part I 241 The section of gas path is more than the section of the air flue obtained corresponding to Part II 242.

In other words, the section of air flue is therefore smaller in the upstream of fan 8, and in the corresponding position of of fan 8 itself and Expanded at the downstream of the fan.Therefore, the path of air is substantially vertically indexed and only impacts rear wall 24, so as to be made The more effective further advantage of heat exchange.In fact, in rapid cooling device according to the present invention, upper wall 22 will not be by hot empty The flow attack of gas, on the contrary, upper wall can be occurred in the rapidly cold of the prior art such as EP1098149 by the flow attack of hot-air But in device.

Advantageously, moreover, the rear wall 24 preferably identified in section just described and in Fig. 1 and units of furniture Rear wall W coordinates, to form the passage for the cooling air for being used to guide " heat " component.Therefore, this geometry is not only formed For accommodating the base 4 of " heat " component, and it also forms the vent passages of the cooling air of the same part.

Especially, as shown the direction of arrow in Figure 1, pass through units of furniture F's from external suction by said fans 8 The air of opening O1 on bottom reaches window O2, through after window O2, under the receiving compartment S1 of rapid cooling device 1 Face, air mass flow follow the straight line path of the rear wall W vicinity of the units of furniture just in compartment S2.This orderly flow Window O3 is reached, for substantially in 8 base of cooling fan of " heat " component lower section and the underface with being positioned at condenser 7 The mode axially aligned in sheet enters component S1.Here, air is urged into condenser 7, to be rushed completely with stable flow Condenser is hit, and without the relevant pressure loss.The air of heating is after condenser 7 is had already passed through upwardly toward compartment S1 Open communication O4 movements between compartment S3 above, and then moved on towards opening O5 with moving along a straight line, for Leave furniture unit F.

As from the foregoing, it is clear that the flow of cooling air follows straight line and orderly movement near the wall W of furniture unit F, Into the lower part for accommodating compartment S1 of rapid cooling device 1.It is also noted that when flow enters compartment S1, flow is by tool Have the first passage of small cross sections, as it was previously stated, the first passage by units of furniture F rear wall W and container 2 rear wall 24 Two parts 242 limit.Subsequently, as flow is run into base position at the expansion limited by base 4 immediately, i.e., relative to air The upstream of the cooling fan 8 in the direction of circulation, flow expansion.

The expansion advantageouslys allow for increase to pass through the amount that fan 8 is urged into the air of condenser 7.The result is that more sky Gas impacts condenser, and cooling capacity will be better.Be additionally, since air mass flow direction and fan rotation axis it is substantially same Axis, the same flow are very orderly, i.e., there is no make the turbulent flow that flow speed slows down and stagnates.Therefore without load damage Lose, or, in other words, inefficent loss.In fact, when during contact condenser or near condenser, air is stopped and stopped Stagnant is fewer, and heat removes faster.

The flow-rate adjustment advantageously dreamed up as just noted allows to use relative to the prior art for built-in The system of formula family expenses rapid cooling device has the refrigeration system (COP) of more preferable performance.In fact, it can use cryogenic fluid R600a gases.The traditional gas used in this gas and the rapid cooling device that describes before in the rapid cooling device of the present invention Body compared to working at lower pressures, because the gas has shown that the preferable efficiency on heat exchange.Therefore, can be with Use the compressor to work at low pressures, i.e. the compressor of less power is consumed while operation.Further, it is necessary to support Anti- relatively low pressure, considers production cost, it is provided with multiple cost-efficient components.

In addition, in the downstream of condenser 7, i.e., after air has already passed through the condenser and is therefore heated, flow The arrow path (narrowing) that the open communication O4 between compartment S3 by compartment S1 and above is limited is run into again.This cause from Be open the upward acceleration of flow of O4, causes relatively easily to remove hot-air.

On the contrary, in EP1098149, due to 90 degree of deflections, the air of condenser downstream is subjected to slowing down.

Therefore, it is another object of the present invention to " heat " component (condenser for cooling down built-in family expenses rapid cooling device And compressor) method, comprise the following steps：

- built-in family expenses rapid cooling device 1 is provided, it includes antetheca 20, two side walls 21, upper wall 22,32, lower wall 23, 31 and rear wall 24；The rear wall is provided with Part I 241 and Part II 242, and the Part I is from upper wall 22,32 with away from before 20 inclined mode of wall extends towards lower wall 23,31, which is extended in a manner of being orthogonal to the lower wall 23,31, institute State Part I 241 to limit to receive the base 4 of condenser 7, compressor 6 and cooling fan 8, on the contrary, the Part II 242 form the suction areas of cooling air, which is substantially oriented to coaxial with the fan 8；

- open fan 8 with produce cooling air into inbound traffics, the cooling air into inbound traffics to be guided along straight line and The mode for being orthogonal to the main heat exchange surface of condenser 7 is directed to the main heat exchange surface, first with the fan The flow substantially axially to align travels through the region of the upstream of fan, and then continues to corresponding to the swollen of condenser 7 Swollen region.

This method preferably includes the available rapid cooling device as described in former.

In addition, this method can also include another step：Make air mass flow through narrowing after the condenser, so as to Accelerate the removal of hot-air.Preferably, as it was previously stated, the rear wall of built-in units of furniture coordinates with wall 24 has reduction to be formed The suction channel for being followed by expansion area in section

Furthermore, it is noted that wrapped by rear wall 24 with the inner space that the similar wall of the other walls or case 3 of container 2 limits Lower area 33 (by the broken line representation in Fig. 1) is included, which has a depth such that it allows to receive with tradition The typical sizes --- width of 460mm ± 20mm and the depth of 360mm ± 20mm --- of the baking sheet of built-in domestic oven Baking sheet, baking tray or grill.

In the part above the lower area 33, conversely accommodate in a fully traditional manner " cold " of heat pump system Component, i.e. evaporator 9 are together with corresponding fan 10 (Fig. 1).

As known from the above, it is evident that eliminated related with the built-in family expenses rapid cooling device of the prior art lack Point, while having been achieved for important advantage.

In document EP1098149, vertical portion and sloping portion are flatly placed side by side, and are not vertically aligned, i.e., Be not as in the present invention vertically one on top of the other.In other words, it means that they be vertically one On another top, so as to form vertical flow along unique rear wall 24.

In addition, the vertical portion almost extended above fan of rear wall will not help to produce in a substantial way it is cold But the flow of air.On the contrary, air in this region tends to stagnate or produces more unwanted turbulent flow.

In EP 1098149, the air mass flow of level suction reaches rear wall, and the air mass flow is after this below fan It is turn 90 degrees partially at wall upwards.

Then, it is clear that the air mass flow in EP1098149 in expansion area and the air in final narrowed areas Flow is orthogonal, and they are linear in the present invention.

Therefore document EP1098149 implies the load loss as having been described above and criticizing in the present specification.

In fact, having devoted the experiment effort of maximum, to optimize the positioning of condenser system, which is set Have the suction channel of condenser upstream air, the suction channel be followed by just condenser in itself lower section expansion area. Had seen that in experiment, this construction allows to optimize air mass flow, because air reaches condensation in a manner of very well ordered Device, is axially aligned with cooling fan, and therefore there is no any turbulent flow for causing load/loss in efficiency, with the sky with 90 degree The prior art of gas circuit footpath deflection is different.In addition, integrated suction channel and expansion area in built-in units of furniture Combination allows air to be left with necessary speed, to reduce temperature as much as possible.In fact, in substantial amounts of numerical analysis and The geometry for the vent passages that laboratory test is set afterwards and its section allow to find " heat " component in rapid cooling Optimization position in the base of device, so as to accommodate baking sheet in the case of the performance of uncompromising refrigeration system.

In fact, it has been found that the size for the operation component that such geometry allows to reduce refrigeration system is without dropping The performance of low operation component.In fact, there is the preferable performance on heat exchange as cryogenic fluid R600a, and it is not required to Operating pressure that will be very big.Therefore, improve the performance on COP and reduce the power that compressor is consumed.It is all these Advantageously produce low production cost.It should also be taken into account that by the way that compressor is positioned near condenser, phase is avoided the need for To long connection, therefore cause further to reduce component and reduce structural complexity.

Additional advantage derives from following facts：As the situation of EP1098149 air suction before grid or transom window no longer It is necessary, in addition to less recognizing except market so that the simplification and saving of whole rapid cooling device structure.

Additional advantage is given by using the ecological cryogenic fluid of such as R600a types.

In the case of the scope of the present invention limited without departing from appended claims, those skilled in the art can be right The rapid cooling device of the present invention carries out substantial amounts of constructive modification.

For example, the form of rapid cooling wall can be changed according to specific requirement or preference.In short, the reality of the present invention Matter is characterized in straight line the and orderly air mass flow for supporting 8 upstream of fan.Therefore, fully it is with necessary condition：Guide portion (or the passage opened or closed), the guide portion extend from the lower wall 23 of rapid cooling device, guide portion guiding air and fan 8 Axially align, base 4 is after the guide portion, to accommodate whole " heat " component.This be in order to obtain the air mass flow of optimization, and The inner space for baking sheet is formed at the same time, which has the size identical with conventional internal formula domestic oven.

Material for making container 2 and case 3 is typically metal, and particularly stainless steel.

In addition, case 3 can include being used for culinary art or the resistor (not shown) for defrosting at low temperature.

Advantageously, rapid cooling device system can be included to collect the pallet 11 of steam, which is oriented to after The contact of Part II 242 of wall 24 and close compressor 6.It should be noted that in this position, pallet 11 contributes to partly Air mass flow of the cooling air below fan 8 is guided, therefore the air of major part is concentrated in this position, is produced less Dissipate.In short, a part for flow is contacted with pallet 11 and compressor 6, so that the water evaporation in pallet is on the one hand helped, and And on the other hand skim over compressor at the same time.

Coil (not shown) can also be coupled to pallet 11 to increase the ability of water evaporation.

Claims (9)

1. built-in family expenses rapid cooling device (1), including the container (2) to reversibly enclosed food treatment box (3), the appearance Device includes front door (20), two side walls (21), upper wall (22), lower wall (23) and rear wall (24) again, it is characterised in that the rear wall (24) Part I (241) and Part II (242) are included, the Part I is from the upper wall (22) with away from the door (20) inclined mode extends towards the lower wall (23), and the Part II (242) is to be orthogonal to the side of the lower wall (23) Formula extends from the Part I (241) so that the Part I (241) is described at the top of the Part II (242) Part I (241) forms base (4), and the base is receiving cooling fan (8), compressor (6) and be positioned at fan just The condenser (7) of top, the Part I also form the expansion area for cooling air, and the Part II (242) Formed and be used to aspirating the guide portion of cooling air, the guide portion be oriented to it is substantially coaxial with the fan (8), for taking out The guide portion inhaled has the section smaller than the section of the base (4).

2. rapid cooling device (1) according to claim 1, wherein, the base (4) includes setting porose supporting item (5), to support the compressor (6), the condenser (7) and the wind for cooling down the compressor and the condenser Fan (8).

3. rapid cooling device (1) according to claim 2, wherein, the condenser (7) is being installed on the fan (8) just Top, to receive the air blown out in itself by the fan completely, and the compressor (6) is installed on the fan (8) With the condenser (7) it is lateral on, so that the air that is cooled at least in part skims over.

4. rapid cooling device (1) according to any one of claim 1 to 3, wherein, the rotation axis of the fan (8) It is orthogonal with the main heat exchange surface of the condenser (7), and the fan is at the same time with being located lower than the base (4) Suction guide portion it is substantially axially aligned, to produce the air mass flow of substantially straight line.

5. rapid cooling device (1) according to any one of claim 1 to 4, wherein, limited by the rear wall (24) interior Portion space includes lower area (33), and the lower area has the depth for being suitable for receiving baking sheet, baking tray or grill, described roasting Plate, baking tray or grill have typical sizes corresponding with the baking sheet of built-in domestic oven.

6. rapid cooling device (1) according to any one of claim 1 to 5, wherein, cryogenic fluid is R600a gases.

7. rapid cooling device (1) according to any one of claim 1 to 6, including to collect the pallet of steam (11), The pallet is oriented to contact with the Part II of the rear wall (24) (242) and close to the compressor (6) so that Help partly to guide the air mass flow in the fan (8) below, however a part for the flow also with it is described Pallet (11) and the compressor (6) contact so that on the one hand help to form the evaporation of steam and skim over the compressor at the same time.

8. the method for the condenser and compressor for cooling down built-in family expenses rapid cooling device, comprises the following steps：

- built-in family expenses rapid cooling device (1) is provided, the rapid cooling device includes front door (20), two side walls (21), upper wall (22), lower wall (23) and rear wall (24), the rear wall (24) are provided with Part I (241) and Part II (242), and described A part extends from the upper wall (22) in a manner of the remote door (20) is inclined towards the lower wall (23), described second Extend from the Part I (241) point in a manner of being orthogonal to the lower wall (23), the Part I (241) formed to The base (4) of condenser (7), compressor and cooling fan (8) is received, and the Part II (242) forms cooling air Suction areas, the suction areas is oriented to substantially coaxial with the fan (8)；

- open the fan (8) with produce cooling air into inbound traffics, the cooling air into inbound traffics with along straight line and The mode for being orthogonal to the main heat exchange surface of the condenser is directed to the main heat exchange surface, first with it is described The substantially axially aligned flow of fan travels through the region of the upstream of the fan, and then reaches expansion area, described Expansion area accommodates the condenser (7).

9. according to the method described in claim 8, further include following step：Make air mass flow through becoming after the condenser It is narrow, to accelerate the removal of hot-air.