CN206440058U - Freezer - Google Patents

Abstract

Freezer includes：Cooler, blower fan, cooling chamber, refrigerating chamber, refrigerating chamber, the ice temperature fresh-keeping box (41) for being arranged at refrigerating chamber bottom and the refrigerating chamber pipeline cover (81) that cold air is imported from refrigerating chamber to cooling chamber.In addition, the refrigerating chamber suction inlet portion (83) of refrigerating chamber pipeline cover (81) is configured at the back side of ice temperature fresh-keeping box (41) by freezer.

Description

Freezer

Technical field

The present invention relates to the structure that the refrigerating chamber of freezer returns to wind path.

Background technology

In the prior art, with following structure, the cold air discharged from cooler to refrigerating chamber is from being configured at the refrigerating chamber back side The top of refrigerating chamber pipeline cold air is discharged, and be back to cooler from the suction inlet of the side of bottom one located at refrigerating chamber pipeline (for example, referring to patent document 1).

But, in above-mentioned existing structure, the suction inlet located at the side of bottom one of refrigerating chamber pipeline is directly seen by user Arrive, so the problem with design difference.

Prior art literature

Patent document

Patent document 1:Japanese Unexamined Patent Publication 10-288444 publications

The content of the invention

The present invention provides a kind of freezer, and it is able to maintain that the cooling performance of refrigerating chamber, while improving design and improving The design freedom in high temperature suction inlet portion.

The freezer of the present invention includes：Generate the cooler of cold air；The cold air generated by cooler is set forcibly to circulate Blower fan；Store the cooling chamber of cooler and blower fan；Freezer room, cooling chamber is arranged at the back side of freezer room；Temperature It is set to the high-temperature storage room higher than freezer room；With the storage box for the bottom for being arranged at high-temperature storage room.In addition, of the invention Freezer also include：The low temperature suction wind path of cold air is imported from freezer room to cooling chamber；With from high-temperature storage room to cold But room imports the high temperature suction wind path of cold air.In addition, the present invention freezer in, high temperature suction wind path be located at high-temperature storage room High temperature suction inlet portion, be configured at the back side of storage box.

Brief description of the drawings

Fig. 1 is the longitudinal section of the freezer of the 1st embodiment of the present invention.

Fig. 2 is the longitudinal section of the cooling chamber of the freezer of the 1st embodiment of the present invention.

Fig. 3 is the front ventilation diagram of the cooling chamber of the freezer of the 1st embodiment of the present invention.

Fig. 4 is the detailed longitudinal section figure of the cooling chamber of the freezer of the 1st embodiment of the present invention.

Fig. 5 is the outline longitudinal section of the freezer of the 2nd embodiment of the present invention.

Fig. 6 is the outline longitudinal section of the freezer of the 2nd embodiment of the present invention.

Fig. 7 is the main view of the refrigerating chamber pipeline for being configured at the refrigerating chamber back side of the freezer of the 2nd embodiment of the present invention Figure.

Fig. 8 is that the outline of the cold air discharge wind path to switching chamber for the freezer for representing the 2nd embodiment of the present invention is stood Body figure.

Fig. 9 is that the switching chamber and cold air of the freezer for representing the 2nd embodiment of the present invention discharge the outline section of wind path Figure.

Figure 10 be the present invention the 2nd embodiment freezer switching chamber and refrigerating chamber heat-insulated spaced walls decomposition knot Composition.

Figure 11 is that the cold air on the cooler periphery for the freezer for representing the 2nd embodiment of the present invention sucks the section of wind path Skeleton diagram.

Figure 12 is that the cold air on the cooler periphery for the freezer for representing the 2nd embodiment of the present invention sucks the front of wind path Skeleton diagram.

Figure 13 is the suction wind of the cold air from cooler and refrigerating chamber for the freezer for representing the 2nd embodiment of the present invention The front skeleton diagram on road.

Figure 14 is the cooler for the freezer for representing the 2nd embodiment of the present invention and the cold air suction wind from refrigerating chamber The side skeleton diagram on road.

Embodiment

Hereinafter, with reference to the accompanying drawings of embodiments of the present invention, but pair with the embodiment identical structure that illustrates before Identical symbol is marked, and omits detail explanation.In addition, the present invention is not limited by the embodiment.

(the 1st embodiment)

Fig. 1 is the longitudinal section of the freezer of the 1st embodiment of the present invention.Fig. 2 be the present invention the 1st embodiment in Cooling chamber longitudinal section.Fig. 3 is the front ventilation diagram of the cooling chamber of the freezer of the 1st embodiment of the present invention.Fig. 4 is The detailed longitudinal section figure of the cooling chamber of the freezer of the 1st embodiment of the present invention.

In Fig. 1~Fig. 4, the heat insulating box 31 of freezer 30 includes：Mainly the outer container 32 of steel plate is used and has been set by ABS etc. The interior case 33 of fat shaping, is filled with the inside of heat insulating box 31 and is foamed as heat-barrier material such as hard polyurethane foam Heat-barrier material 34, and surrounding insulation, and it is divided into multiple storerooms.

Multiple storerooms of freezer 30 are configured with refrigerating chamber 35 in topmost, and switching chamber 36 is configured with foot, and Refrigerating chamber 37 is configured between refrigerating chamber 35 and switching chamber 36.

The front openings portion of refrigerating chamber 35 is supported with refrigerating-chamber door 35a in above opening portion mode to be opened/closed, in switching The front openings portion of room 36 is supported with switching chamber door 36a in above opening portion mode to be opened/closed, is opened before refrigerating chamber 37 Oral area is supported with refrigerating chamber door 37a in above opening portion mode to be opened/closed.

Refrigerating chamber 35 is in order to carry out the stored refrigerated temperature without freezing as lower limit, to be typically set to 1 DEG C~5 DEG C, freezing Room 37 is set to cryogenic temperature domain, in order to which freezen protective is generally set to -22 DEG C~-15 DEG C, but in order to improve freezen protective shape State, is also set at the low temperature of such as -30 DEG C or -25 DEG C sometimes.In addition, switching chamber 36 can be set to -18~8 DEG C.In addition, The temperature switching of switching chamber 36 is not limited to above-mentioned, and such as -3~4 DEG C, temperature change amplitude can suitably be set according to purposes It is fixed.

In addition, by the use of the first partition wall 71 as spaced walls, switching chamber 36 and refrigerating chamber are separated about 37, profit The second partition wall 72 of spaced walls is used as, refrigerating chamber 35 and refrigerating chamber are separated about 37.

Then, the structure to cooling chamber is illustrated.

Cooling chamber 43 is using vertical partition wall 45a, 45b and refrigerating chamber 37 is heat-insulated separates.It is provided with the back side of refrigerating chamber 37 Generate cold air cooling chamber 43, be internally typically configured with fin tube type it is generation cold air, used as material The cooler 44 of aluminium or copper.

Multiple plate wings that cooler 44 is included in the refrigerant pipe 201 of internal flow refrigerant and configured every predetermined distance Piece 202.

Refrigerant pipe 201 is that a body of aluminum or aluminium alloy is connected with straight sections with curved tube portion, (left in row It is right) direction with turn into multiple mode bending process into snake shape on layer (up and down) direction obtained from coiled pipe, without using shape Into curved tube portion connecting tube form a refrigerant flow path.Moreover, by making the curved tube portion of refrigerant pipe 201 will be formed in plate The insertion of elongated hole 203 of fin 202, the straight sections of refrigerant pipe 201 are close to plate fin 202.

Elongated hole 203 has rectangular portion and arc sections, is formed as respectively with arc sections being connected in the both sides short side of the rectangular portion Formed by elongated hole-shape.In addition, being provided with arc sections is used to be close to fixation, stile shaping with the straight sections of refrigerant pipe 201 The obtained arc sections collar (not shown), also is provided with what generally perpendicularly stile shaping was obtained at the two ends of rectangular portion length direction The rectangular portion collar (not shown).So that the rectangular portion collar (not shown) with gone to the freezer back side and inclined side downwards Formula is provided with cooler 44.

The blower fan 46 forcibly conveyed to the cold air generated is configured with the top of cooler 44, in cooler 44 lower section is provided with the Defrost heater 47 defrosted to the frost and ice for being attached to cooler 44.Moreover, being constituted in its underpart Have has outside most deep insertion to the storehouse of drain pan 48 for receiving the drain pan 48 of the defrosting water produced in defrosting, and constituting Drainpipe 49, outside the storehouse of side downstream constitute have evaporating pan 50.

Specifically, Defrost heater 47 is the Glass tube heater 59 of glass system, is hydro carbons system particularly in refrigerant In the case of refrigerant gas, as explosion precaution, using the dual Glass tube heater for being formed with dual glass tube.In glass tube The top of heater 59, is configured with the heater housing 60 of cover glass pipe heater 59, heater housing 60 is set to and glass tube Size more than footpath and width are equal, with cause will not be due to defrosting when the water droplet that is dripped from cooler 44 fall directly on because of defrosting And turn into the glass pipe surface of high temperature and send the sound that taste is grown.

Here, as the refrigerant of kind of refrigeration cycle in recent years, the viewpoint protected from earth environment is become using the whole world is used as The iso-butane of the small combustible refrigerant of warm potentiality.This is more under normal temperature, atmospheric pressure compared with air as the iso-butane of hydrocarbon About 2 times of proportion (proportion 2.04, during temperature 300K).Thus, compared with prior art, refrigerant charge can be reduced, it is low Leakage rate when cost and contingency combustible refrigerant leakage is few, can further improve security.

In the present embodiment, limited in the refrigerant using iso-butane as explosion precaution as glass during defrosting The maximum temperature of the glass pipe surface of the gabarit of pipe heater 59.Therefore, in order that the temperature of glass pipe surface is reduced, using shape The dual Glass tube heater of heavy glass pipe in pairs., also can be in addition, as the structure for reducing the temperature of glass pipe surface The high part (such as aluminum fin-stock) of glass pipe surface winding thermal diffusivity.Now, by the way that glass tube is set into a weight, glass can be reduced The appearance and size of glass pipe heater 59.

In addition, as improve defrost when efficiency structure, can also on the basis of Glass tube heater 59 and with The tube heater that cooler 44 is close to.In this case, by the direct heat transfer from tube heater, cooler 44 Defrosting is efficiently carried out, and Glass tube heater 59 can be utilized to make the He of drain pan 48 being attached to around cooler 44 The frost thawing of blower fan 46, so the shortening of defrosting time can be realized, the rising of storehouse temperature when saving and suppressing to defrost.

In addition, in the case of by Glass tube heater 59 and tube heater combination, by the way that mutual heater is held Amount is appropriate, can reduce the capacity of Glass tube heater 59.When reducing heater capacity, the Glass tube heater 59 during defrosting The temperature of gabarit can also reduce, so red heat when can also suppress defrosting.

Drain pan 48 constitutes the bottom surface of cooling chamber 43 and the part at the back side.Bottom surface is collected into drainpipe for the water that will defrost Make in 49 it is minimum with the connecting portion of drainpipe 49, in the connecting portion with drainpipe 49, farthest away from Defrost heater 47 (Fig. 2's Apart from L).The back side is erected to the height of the height more than the pondage for being able to ensure that drain pan 48, bottom surface and angle formed by the back side It is made up of gentle curved surface.

Then, wind path structure is illustrated.

Vertical partition wall 45a, 45b are by forming the preceding partition wall 45a of the shell of refrigerating chamber 37 and forming the shell of cooling chamber 43 Rear partition wall 45b constitute.Space between preceding partition wall 45a and rear partition wall 45b makes cold air to each storeroom branch Distribute wind path 51.

Preceding partition wall 45a up has refrigerating chamber outlet 52, and distribution wind path 51 is connected with refrigerating chamber 37.In lower section Wind path 53 is sucked with the refrigerating chamber prominent to the side of refrigerating chamber 37, from the entrance that (end) face before wind path 53 is sucked located at refrigerating chamber 53a imports the return cold air of refrigerating chamber 37 to cooling chamber 43.

Wind path 51 is distributed via the switching chamber air door (the switching chamber air door 80 of reference picture 5) in the first partition wall 71 It is connected with switching chamber discharge wind path (not shown), distribution wind path 51 is connected with switching chamber 36.In addition, via located at second point Refrigerating chamber air door (the refrigerating chamber air door 42 of reference picture 5) in next door 72 is connected with refrigerating chamber discharge wind path 85, and will distribute wind Road 51 is connected with refrigerating chamber 35.

Partition wall 45b is up provided with blower fan 46 afterwards, has in lower section refrigerating chamber sucking wind path 53 and cooling chamber 43 The rib 55 of separation.The region for being surrounded refrigerating chamber suction wind path 53 using rib 55 and drain pan 48 is refrigerating chamber suction inlet 56, and Refrigerating chamber suction wind path 53 is connected with cooling chamber 43.

In addition, the area of refrigerating chamber suction inlet 56 is constituted in the big mode of the area than entrance 53a.In addition, passing through row On the longitudinal section at the center of water pipe 49, Defrost heater 47 and drainpipe 49 are apart from L with than the refrigerating chamber on identical longitudinal section The mode that the height H of suction inlet 56 is big is constituted (Fig. 2).In addition, the back side of cooling chamber 43 and Defrost heater 47 apart from B also with than The mode that the height H of refrigerating chamber suction inlet 56 is big is constituted (Fig. 2).

The bottom surface of refrigerating chamber suction wind path 53 is connected and constituted with the bottom surface of cooling chamber 43 using a part for drain pan 48. Drain pan 48 has slopes down to drainpipe 49, Zhi Houping from entrance 53a lower end by the lower end of refrigerating chamber suction inlet 56 The shape for reaching the back side of cooling chamber 43 upward is turned slowly.

Refrigerating chamber suction wind path 87 is configured with the back side of cooler 44.Refrigerating chamber sucks wind path 87 and separated by second Wall 72 connects refrigerating chamber 35 with cooling chamber 43, and flows through the cold air for cooling refrigerating chamber 35.Refrigerating chamber sucks wind path 87 under Side has the refrigerating chamber suction inlet 88 connected with cooling chamber 43.

In addition, at the back side of cooler 44, being configured that also there is switching chamber suction inlet 89 simultaneously with refrigerating chamber suction inlet 88. Switching chamber suction inlet 89 is connected via the switching chamber suction wind path 90 in the first partition wall 71 with switching chamber 36.

Moreover, connected with refrigerating chamber suction inlet 88 refrigerating chamber suction wind path 87 and with cutting that switching chamber suction inlet 89 is connected Room suction wind path 90 is changed to constitute respectively as independent suction wind path.

In addition, refrigerating chamber suction inlet 88 and switching chamber suction inlet 89 are located at the lower end of cooler 44, and it is formed at ratio The high position of refrigerating chamber suction inlet 56.

In addition, the upper end of refrigerating chamber suction inlet 88 and switching chamber suction inlet 89 be configured at than cooler 44 lower end by the top Position.

In addition, the multiple high temperature suction inlets that will be matched with the refrigerating chamber suction inlet 88 and switching chamber suction inlet 89 that set simultaneously Width dimensions be configured to it is roughly the same with the width dimensions of cooler 44.

In addition, the aperture area of the refrigerating chamber suction inlet 88 of the temperature field higher than switching chamber is set to than switching chamber suction inlet 89 aperture area is big.

In addition, switching chamber suction inlet 89 sucks wind path 87 and refrigeration relative to the corresponding refrigerating chamber of refrigerating chamber suction inlet 88 The connecting portion of room 35, is configured at the side end compared with distal side on width.

In addition, the switching chamber suction inlet 89 and refrigerating chamber suction inlet 88 that set can also be with the horizontal direction and vertically simultaneously The mode overlapped on direction is configured together.

Hereinafter, action, the effect of the freezer constituted like that more than illustrating.

First, illustrated when being operated to cooling.

A part for the cold air generated from the cooler 44 of cooling chamber 43 is forced in front from blower fan 46 into distribution wind path 51 Blow to property.The cold air that refrigerating chamber 37 is discharged from refrigerating chamber outlet 52 is cooled down, and cold air is via located at the vertical bottom of partition wall 45 Refrigerating chamber suction wind path 53, guided from refrigerating chamber suction inlet 56 to the bottom of cooler 44, hot friendship carried out in cooler 44 Change, make fresh cold air that circulation is repeated again by blower fan 46.Thus, refrigerating chamber 37 (is not schemed by refrigerating chamber sensor Show) control be cooled to proper temperature.

In addition, the cold air for being expelled to top in distribution wind path 51 discharges wind path 85 via the refrigerating chamber in the second partition wall 72 It is discharged to refrigerating chamber 35.In addition, on towards switching chamber 36, being expelled to the cold air in distribution wind path 51 in the first partition wall 71 Circulation, is flowed into switching chamber 36.The cold air circulated in refrigerating chamber 35 and switching chamber 36, which turns into, carries air or repertory institute The air of the moisture contained, sucks wind path 87 by refrigerating chamber from refrigerating chamber 35 and is directed to cooler 44 from refrigerating chamber suction inlet 88 Bottom, with cooler 44 carry out heat exchange, reuse blower fan and fresh cold air forcibly blown.Equally, from switching Room 36 sucks wind path 90 by switching chamber, and the bottom of cooler 44 is directed to from switching chamber suction inlet 89, is entered with cooler 44 Row heat exchange, reuses blower fan and fresh cold air is forcibly blown.

Thus, refrigerating chamber 35 and switching chamber 36 can also be made even at the position away from cooler 44 using blower fan 46 Cold air is forcibly circulated, and interior thus is cooled into design temperature.

Here, discharging cutting provided with adjustment air conditioning quantity in the wind path of wind path 86 in the switching chamber that cold air is imported to switching chamber 36 Change room air door (the switching chamber air door 80 of reference picture 5).Thus, switching chamber air door (the switching chamber air door 80 of reference picture 5), energy are utilized Temperature in enough meticulously control switching chambers 36, so the excessive door when food after summer or shopping is stored is opened It when closing, can also suppress the temperature change in storehouse, proper temperature will be maintained in storehouse.

In addition, switching chamber 36 can substantially be set to -18~8 DEG C, but the switching of the temperature field of switching chamber 36 is not limited In this, temperature change amplitude can suitably be set as such as -3~4 DEG C according to purposes, can get both convenient and save.

In addition, Defrost heater 47 is in defrosting, cooling chamber 43 can be sucked interior, refrigerating chamber using heater heat Heated in wind path 87 and in switching chamber suction wind path 90, so can improve or prevent from condensing and freeze, it is possible to increase can By property.

Here, illustrating details to suction wind path structure.

When the cold air discharged from blower fan 46 is circulated in refrigerating chamber 35, switching chamber 36, all storerooms of refrigerating chamber 37, Return cold air from refrigerating chamber 37,3 air-flows for returning to cold air from refrigerating chamber 35 and the high temperature of switching chamber 36 are flowed into simultaneously To cooling chamber 43.

That is, the return cold air from refrigerating chamber 37 sucks wind path 53 from entrance 53a by refrigerating chamber, from refrigerating chamber suction inlet 56 enter cooling chamber 43.In addition, the high temperature from refrigerating chamber 35 returns to cold air sucks wind path 87 by refrigerating chamber, inhaled from refrigerating chamber Entrance 88 enters cooling chamber 43.In addition, the high temperature from switching chamber 36 returns to cold air sucks wind path 90 by switching chamber, from switching Room suction inlet 89 enters cooling chamber 43.

In present embodiment, refrigerating chamber suction inlet 56 is located at the preceding surface of cooling chamber 43, and refrigerating chamber suction inlet 88 is located at cooling The back side of room 43, refrigerating chamber suction inlet 56 is located at position than refrigerating chamber suction inlet 88 on the lower, refrigerating chamber suction inlet 56 be located at than Entrance 53a is on the lower.Accordingly, drain pan 48 of the refrigerating chamber return cold air along the bottom surface for constituting refrigerating chamber suction wind path 53 is downward It is flowed into cooling chamber 43.In addition, being provided with the Defrost heater 47 for melting frost or ice in the top of drain pan 48, make defrosting Heater 47 is apart from L and bigger than the height H of refrigerating chamber suction inlet 56 apart from B with the back side of cooling chamber 43 with drain pan 48. Therefore, refrigerating chamber returns to the lower section that cold air readily flows into the larger Defrost heater 47 in space, afterwards in this condition cold But the bottom surface flowing of room 43, is changed according to the shape travel direction of drain pan 48, in the back side up flowing of cooling chamber 43, The pressure loss can be suppressed smaller.

Thus, the big refrigerating chamber of speed backward returns to cold air and the big high temperature return cold air of speed forward in upper and lower Stagger upwards, so can suppress to interfere and increase the air quantity in storehouse interior circulation.Therefore, it is possible to further improve cooling energy Power.In addition, when being circulated in the refrigerating chamber 37 that cold air only needs most cooling, be in further below also by refrigerating chamber suction inlet 56, It is elongated and increase heat exchange amount by the distance of cooler 44 that refrigerating chamber returns to cold air, thus, it is possible to further improve cooling energy Power.

Above-mentioned refrigerating chamber returns to cold air and refrigerating chamber suction inlet 88 and switching chamber from the back side for being arranged at cooling chamber 43 The high temperature that suction inlet 89 flows out returns to cold air to collaborate at the back side of cooling chamber 43, but high temperature returns to cold air can promote upward cold Freeze room and return to cold air, swimmingly direction is converted to upwards, is poured together with refrigerating chamber return cold air to cooler 44.Therefore, it is cold Freeze room and return to cold air and high temperature and return to two air-flows of cold air and head-on crash and will not mutually hinder, so making the wind of two air-flows Amount increase, the heat exchange amount thus, it is possible to increase cooler 44 improves cooling capacity.

In addition, making the shape of the drain pan 48 of the bottom surface of composition cooling chamber 43 has from refrigerating chamber suction inlet 56 to drainpipe 49 inclined shapes downwards.Thus, refrigerating chamber return to cold air can be along drain pan 48 and along the back flowed downwards Face rises.Therefore, in the front of high temperature suction inlet 58, the speed that refrigerating chamber returns to cold air is improved, and can return to cold air with high temperature suitable Freely collaborate, can further increase air quantity and improve cooling capacity.

In addition, refrigerating chamber suction inlet 56 is provided with refrigerating chamber suction wind path 53 in upstream side, refrigerating chamber suction wind path 53 Entrance 53a is located at the position than refrigerating chamber suction inlet 56 by the top.Thus, cold air is returned in the refrigerating chamber of refrigerating chamber suction inlet 56 Cooling chamber 43 is flowed downwardly into, so being easier to flow along drain pan 48, can further reduce the state of the pressure loss Lower suppression returns to the interference of cold air with low temperature.In addition, the entrance 53a of refrigerating chamber suction wind path 53 area is than refrigerating chamber suction inlet 56 area is small, thereby, it is possible to the further pressure loss of the reduction in refrigerating chamber suction inlet 56.

In addition, will be part, the cooler back side as flowing into for the return cold air from refrigerating chamber 35 and switching chamber 36 High temperature suction inlet is configured to roughly the same with the width dimensions of cooler.Thus, in the return cold air of freezer interior circulation, with The refrigerating chamber that the temperature difference of cooler 44 is big returns to cold air and switching chamber return cold air with the chi roughly the same with cooler width The heat exchange of little progress row and cooler 44, so the heat exchange area of larger cooler 44 can be obtained, and improves refrigeration Cycle efficieny, thus, it is possible to realize energy-conservation.

In addition, in the use state of freezer, the door opening and closing number of times of refrigerating chamber 35 and switching chamber 36 is more.It is particularly near Nian Lai, the also actual conditions in the presence of the plastic bottle beyond the cooling preservation vegetables in switching chamber 36, in one day, refrigerating chamber 35 or The door of switching chamber 36 is in rising trend before being opened and closed number of times relative to 10 years.Therefore, as described above, in refrigerating chamber 35 or switching chamber The high temperature of 36 high-temperature storage indoor circulation returns to cold air and the heat exchange quantitative change of cooler is big, can reduce in cold room when Between, so shortening that also can be by cooling down the duration of runs reduces the frosting degree to cooler 44.Especially because high-temperature storage The door opening and closing number of times of room is more, and not only the moisture of extraneous air is easy to intrusion, and temperature is higher, so keep in atmosphere Absolute humidity is also higher, so frost also becomes many to the adhesion amount of cooler 44., can by reducing the frosting degree to cooler 44 Extend the defrosting cycle of cooler 44, can realize caused by the reduction of power input number of times and defrosting of Defrost heater 47 in storehouse The power input reduction of cooler 44 in storehouse after temperature rising required for cooling, is further saved.

In addition, the larger heat exchange area by cooler 44 can be obtained, it is meant that increase makes the frosting of cooler 44 Area, so the deterioration of cooling capacity when can also suppress frosting.Freezer is set to be removed after operating to needs thereby, it is possible to extend The time (defrosting cycle) of frost, storehouse temperature caused by the reduction of power input number of times and defrosting of Defrost heater 47 can be realized The power input reduction of cooler 44 required for being cooled down in storehouse after rising, is further saved.

In addition, being refrigerating chamber suction inlet upper end 88a and switching at each suction inlet that the back side of cooling chamber 43 is set simultaneously Room suction inlet upper end 89a is the positions of cooler lower end 44b by the top positioned at the lower end than cooler 44.

Thus, in cooling chamber 43, the return cold air from refrigerating chamber 35 and switching chamber 36 is from the cold of refrigerating chamber 37 Freeze the top flowing that room returns to cold air.Therefore, the big refrigerating chamber of speed backward returns to cold air and speed forward coming from greatly Refrigerating chamber 35 and the return cold air of switching chamber 36 stagger in the vertical direction, can suppress to interfere and increase in storehouse interior circulation Air quantity, so cooling capacity can be improved further.

Further, since the moisture in the air invaded when door is opened and closed, or the moisture of the food put into storehouse is attached to, with And the moisture from the vegetables being stored in storehouse etc., frost is attached to cooler 44.When the frost complete grow when, cooler 44 with Circulate between cold air, heat exchanger effectiveness reduction and not cold or slow cooling state can not be eventually become in sufficiently cool storehouse.Therefore, it is cold Hide in storehouse, it is necessary to periodically be defrosted to the frost for being attached to cooler 44.In contrast, in present embodiment, inhaled in refrigerating chamber Between entrance upper end 88a and switching chamber suction inlet upper end 89a, refrigerating chamber suction inlet lower end 88b and switching chamber suction inlet lower end 89b Configure cooler lower end 44b.Thus, cold air is returned to by the larger high temperature of amount of moisture, even if being attached to cooler lower backside Frost growth, also to cooler bottom surface side flow through high temperature return cold air, so resistance to frosting performance improve.Thus, it can also suppress The deterioration of cooling capacity during frosting.

In addition, refrigerating chamber suction inlet upper end 88a and switching chamber suction inlet upper end 89a to be set to the lower section of cooler 44 In the case of, the increase of wind path resistance and air circulation reduction of refrigerating chamber suction wind path 87, so cooling capacity is reduced.The opposing party Face, in the case where refrigerating chamber suction inlet upper end 88a and switching chamber suction inlet upper end 89a are set into the top of cooler 44, wind Road drag reduction and air circulation increase, but because return cold air is easy to flow to the frost of cooler 44 and attachment, refrigerating chamber suction Wind path 87 may be blocked.Therefore, such as present embodiment, by refrigerating chamber suction inlet upper end 88a and switching chamber suction inlet upper end Cooler lower end 44b is configured between 89a, refrigerating chamber suction inlet lower end 88b and switching chamber suction inlet lower end 89b, cooling energy is met Both power and frosting endurance.Refrigeration is configured particularly between the undermost pipe of cooler 44 and the pipe of undermost last layer Room suction inlet upper end 88a and switching chamber suction inlet upper end 89a, thus, is realized most preferably between the two in cooling capacity and frosting endurance Change.

In addition, in cooling chamber 43, the elongated hole 203 and the rectangular portion collar (not shown) of plate fin 202 are with to refrigeration The storehouse back side is gone and inclined mode is arranged at cooler 44 downwards.Thus, the cold air at interflow from the rear side of cooler 44 with Poured based on vertical superior component, the plate fin 202 and the rectangular portion collar of the part of the cold air poured along cooler 44 are (not Diagram) flowing, it is directed to the preceding surface of cooler 44.Thus, cold air is overall by cooler 44, thus, it is possible to increase heat Exchange capacity, so cooling capacity can be improved.

In addition, in present embodiment, the aperture area of refrigerating chamber suction inlet 88 is set to than switching chamber suction inlet 89 Aperture area is big.The temperature of switching chamber 36 is different according to the vegetables of storage, there is optimal reserve temperature, excellent for leaf vegetables Choosing is divided into about 1~2 DEG C and preserved, and for fruit vegetable, is preferably divided into about 8~9 DEG C or so and is preserved, but generally will refrigeration The temperature of room 35 is set to lower than switching chamber 36.Therefore, as in this embodiment, opening refrigerating chamber suction inlet 88 is passed through Open area is set to bigger than switching chamber suction inlet 89, it can be ensured that for will be cooled to the temperature lower than switching room temperature in refrigerating chamber The air quantity and air conditioning quantity of the circulation of degree.

Exist in addition, switching chamber suction inlet 89 to be configured to the connecting portion for sucking wind path 87 relative to refrigerating chamber 35 and refrigerating chamber Compared with the side end in distal side on width.

Thus, with the return cold air for the corresponding refrigerating chamber of refrigerating chamber 35 for being cooled to the temperature lower than switching room temperature, The high state of cold air is returned in refrigerating chamber suction wind path 87 than switching chamber with wind speed to circulate to cooler 44.In addition, refrigerating chamber 35 With refrigerating chamber suck the connecting portion of wind path 87, wind path short with distance in the wind path of cooler 44 wind speed it is most fast.This embodiment party In formula, relative to the connecting portion that refrigerating chamber 35 and refrigerating chamber suck wind path 87, the longer wind path side of distance is configured with wind path Switching chamber suction inlet 89.Thus, the return cold air flowed into from switching chamber 36 to cooler 44 can be not easily susceptible to refrigerating chamber return The influence for the circulation wind speed that cold air is flowed into cooler 44, interferes so suppressing adverse current etc. and realizes heat exchanger effectiveness really Protect.

In addition, in present embodiment, switching chamber suction inlet 89 is relative to refrigerating chamber suction inlet 88, in the horizontal direction and vertically Configured together on direction.

Thus, heat exchange can be carried out in the whole width of cooler by being flowed into the return cold air at the cooler back side, so Heat exchanger effectiveness is improved, and refrigeration cycle efficiency is improved, so energy-conservation.In addition, forming refrigerating chamber suction wind path 87 and switching chamber When sucking wind path 90, the miniaturization of part is formed, so cost can be reduced.Wind is sucked especially by refrigerating chamber is integrally formed Road 87, refrigerating chamber suction inlet 88, switching chamber suction wind path 90, switching chamber suction inlet 89, can cut down making Master Cost and Die cost, and can also reduce the man-hour in manufacturing process.In present embodiment, refrigerating chamber is sucked into wind path 87, refrigeration Room suction inlet 88, switching chamber suction inlet 89 are constituted with integrated component, on the basis of reduction Master Cost, die cost, are passed through Part points reduce also reduction pipe reason Charges and used.Thereby, it is possible to realize as the overall cost reduction of product, selling price is also brought Reduction, realize the raising of sales rate.

In addition, switching chamber suction inlet 89 and refrigerating chamber suction inlet 88 to be configured to the back side of cooler 44, so can drop Low idle space, the increase of storehouse internal volume, realization is easily improved.

In addition, freezer 30, which is needed most, makes refrigerating chamber 37 larger with the temperature difference of external air temperature in 3 storerooms Cooling, so needing to close refrigerating chamber discharge wind path 85 etc. by using open and close valve is (not shown), makes cold air only in refrigerating chamber 37 Middle circulation.When the cold air discharged from blower fan 46 is only circulated in refrigerating chamber 37, only flowed into cooling chamber 43 from refrigerating chamber 37 Return to cold air.

Now, it is same when refrigerating chamber return cold air is also circulated with cold air in whole storerooms, pass through freezing from entrance 53a Room sucks wind path 53, enters cooling chamber 43 from refrigerating chamber suction inlet 56, and by the lower section of Defrost heater 47, along drain pan 48 pour cooler 44 from the back side.Therefore, refrigerating chamber returns to cold air and can flowed through in cooler 44 on diagonal, Neng Gouqu Longer heat exchange distance is obtained, so heat exchange amount can be increased, and cooling capacity is improved.

Moreover, the suction inlet for being arranged at the preceding surface of cooling chamber 43 is only refrigerating chamber suction inlet 56, so can make freezing The width of room suction inlet 56 extends to identical with the width of cooler 44.Therefore, even if cold air is only in the interior circulation of refrigerating chamber 37, Cooler 44 can be used overall, cooling capacity can be further improved.

In addition, refrigerating chamber suction inlet is bigger than the entrance 53a that refrigerating chamber sucks wind path 53, so can also suppress pressure herein Power is lost, and then can increase air quantity.

No matter as described above, in the case where cooling down freezer entirety, or being cooled down centered on refrigerating chamber In the case of, all realize the raising of cooling capacity.

In addition, the cooler 44 of low temperature is generally configured with the back side of freezer 30, so being invaded via the thermal wall at the back side What is entered is hot more.In contrast, between cooling chamber 43 and thermal wall constitute have high temperature suck wind path, so can reduce via The heat of the thermal wall intrusion at the back side of freezer 30.

In addition, the cold air cooled down by cooler 44 diffuses to its periphery by heat transfer.In contrast, it is being arranged at cooling Returning from refrigerating chamber 35 or switching chamber 36 is flowed through in the refrigerating chamber suction wind path 87 and switching chamber suction wind path 90 at the back side of device 44 When returning cold air, the cold air spilt from cooler 44 is absorbed, cooling chamber 43 is returned again to, so cold air can be suppressed to refrigeration Spilling outside storehouse 30, and reduce power consumption.

(the 2nd embodiment)

Fig. 5 is the outline longitudinal section of the freezer of the 2nd embodiment of the present invention.Fig. 6 is the 2nd embodiment party of the present invention The outline longitudinal section of the freezer of formula.Fig. 7 is that the freezer of the 2nd embodiment of the present invention is configured at the refrigerating chamber back side Refrigerating chamber pipeline front view.Fig. 8 is that the cold air to switching chamber for the freezer for representing the 2nd embodiment of the present invention is arranged Go out the approximate three-dimensional map of wind path.Fig. 9 is the switching chamber and cold air discharge wind path for the freezer for representing the 2nd embodiment of the present invention Summary sectional view.Figure 10 is the switching chamber and the heat-insulated spaced walls of refrigerating chamber of the freezer of the 2nd embodiment of the present invention Decomposition chart.Figure 11 is the cold air suction wind path on the cooler periphery for the freezer for representing the 2nd embodiment of the present invention Section skeleton diagram.Figure 12 is the cold air suction wind path on the cooler periphery for the freezer for representing the 2nd embodiment of the present invention Front skeleton diagram.Figure 13 is that the cold air from cooler and refrigerating chamber for the freezer for representing the 2nd embodiment of the present invention is inhaled Enter the front skeleton diagram of wind path.Figure 14 be represent the present invention the 2nd embodiment freezer cooler and from refrigerating chamber Cold air suck wind path side skeleton diagram.

In addition, pair marking identical symbol with the 1st embodiment identical structure, and detailed description is omitted.In addition, the The technological thought of 1 embodiment can be also applicable in the present embodiment.

In Fig. 5,6, freezer 30 has：By outer container 32, interior case 33 and the hair being filled between outer container 32 and interior case 33 The heat insulating box 31 of the formation of heat-barrier material 34 is steeped, inner utilization the first partition wall 71 and the second partition wall 72 are separated.Topmost Refrigerating chamber 35 is provided with, the lower section of the second partition wall 72 is provided with refrigerating chamber 37, and the foot of the lower section of the first partition wall 71 is set There is the switching chamber 36 allowed hand over from the storage temperature for being chilled to vegetables.

In addition, being provided with ice-making compartment 38 and top freezer compartment (not shown) simultaneously in refrigerating chamber 37, set in its underpart There is lower freezer compartment 40.

In addition, be provided with rotary refrigerating-chamber door 35a on the preceding surface of refrigerating chamber 35, switching chamber 36, ice-making compartment 38, on Portion's refrigerating chamber (not shown), the preceding surface of lower freezer compartment 40 be respectively arranged with pull-out type switching chamber door 36a, ice-making compartment door 38a, Top freezer compartment door (not shown), lower freezer compartment door 40a.

In addition, being provided with the ice temperature fresh-keeping box for being set to the temperature temperature more slightly lower than refrigerating chamber in the bottom of refrigerating chamber 35 (chilled case) 41, front and rear can be extracted out.

The refrigerating chamber pipeline cover 81 at the back side of refrigerating chamber 35 is arranged at, refrigerating chamber discharge wind path 85 is formed at rear, upper Side has multiple outlets 82, has in lower section and sucks the refrigerating chamber suction inlet portion 83 that wind path 87 is connected with refrigerating chamber.

Refrigerating chamber suction inlet portion 83 is configured at the back side of ice temperature fresh-keeping box 41, is expelled to the cold air of refrigerating chamber 35 to inside Cooled down, flow through the gap to be formed between the partition wall 72 of ice temperature fresh-keeping box 41 and second, from refrigerating chamber suction inlet portion 83 Wind path 87 is sucked by refrigerating chamber and is back to cooling chamber 43.

In addition, ice temperature fresh-keeping box 41 is cooled to temperature of 35 low 0~3 DEG C or so than refrigerating chamber, for making cold air from ice The ice temperature fresh-keeping box suction inlet portion 84 that warm crisper 41 is returned to cooling chamber 43 is configured together with refrigerating chamber suction inlet portion 83 In the back side of ice temperature fresh-keeping box 41.

In addition, from cooling chamber 43 to the cold air of switching chamber 36 from distribution wind path 51 via cutting in the first partition wall 71 Room air door 80 is changed, wind path circulation (not shown) is discharged to switching chamber and is flowed into switching chamber 36.

Here, the internal switching chamber throttle setting 92 (Fig. 8,9) with switching chamber air door 80 includes：Switching chamber air door is filled Foreboard 93, switching chamber throttle setting back plate 94, the heat-barrier material (for example, foamed heat-insulating material 34) being arranged between them are put, The inside located at heat-barrier material (for example, foamed heat-insulating material 34) space (wind path) inserted with switching chamber air door 80.

Moreover, in the state of switching chamber throttle setting 92 is installed on the first partition wall 71 in advance, by the first partition wall 71 Load heat insulating box 31, when to 31 filling-foam heat-barrier material 34 of heat insulating box, also fill simultaneously to the first partition wall 71.

In addition, the downstream for the switching chamber air door 80 being arranged in switching chamber throttle setting 92 is branched into it is multiple, from many Individual switching chamber outlet 96a, 96b is to the transporting cold-air of switching chamber 36.Switching chamber outlet 96a from the upper direction of switching chamber 36 to cut The mode for changing discharge cold air in 97 on the box of room is configured.Switching chamber outlet 96b is with from the rear of switching chamber 36 to switching chamber box The mode of discharge cold air is configured in 98.It is uneven thereby, it is possible to reduce the temperature in switching chamber 36, defined temperature can be remained Degree distribution.

In addition, the first partition wall 71 is provided with advance between the first partition wall upper plate 73 and the first partition wall lower plate 74 In the state of heat-barrier material 75 corresponding with drain pan 48 and switching chamber return duct cover 76, by the first partition wall 71 load every Hot tank body 31, when to 31 filling-foam heat-barrier material 34 of heat insulating box, is also filled to the first partition wall 71 simultaneously.

Moreover, the cold air returned from switching chamber 36 to cooling chamber 43 is by forming in switching chamber return duct cover 76 and first Space between partition wall lower plate 74 and the back side shape in the partition wall 71 of heat-barrier material 75 and first corresponding with drain pan 48 Into space (between heat-barrier material 75, the first partition wall lower plate 74 and the first partition wall upper plate 73) be back to cooling chamber 43.

That is, switching chamber recurrent canal of the cold air returned from switching chamber 36 to cooling chamber 43 from the top surface for being arranged at switching chamber 36 In road cover 76, by the bottom of drain pan 48, rear portion, cooler is back to from the switching chamber suction inlet 89 at the back side of cooling chamber 43 44 (reference pictures 11).

In addition, from refrigerating chamber 35 via refrigerating chamber suck it is that wind path 87 is returned to cooling chamber 43, be arranged at cooling chamber 43 The refrigerating chamber suction inlet 88 at the back side, is accordingly configured with the substantially whole width of cooler 44, from switching chamber 36 to cooling chamber 43 The part adjacent with switching chamber suction inlet 89 stage portion is set, be provided with switching chamber suction inlet together in the lower section of stage portion 89。

In addition, as shown in figure 13, refrigerating chamber suction wind path 87 is utilized is formed at cooler 44 and hot box by other parts The cover of tabular between the interior case 33 of body 31 is constituted, and top is connected with refrigerating chamber connecting portion 91, and regard bottom as refrigerating chamber Suction inlet 88.

Moreover, the width dimensions of refrigerating chamber connecting portion 91 are narrowly set than the width dimensions of refrigerating chamber suction inlet 88, refrigeration The depth size of room connecting portion 91 is set to wider than the depth size of refrigerating chamber suction inlet 88.

In addition, on the back side left and right directions of cooling chamber 43, refrigerating chamber connecting portion 91 and adjacent with refrigerating chamber suction inlet 88 The switching chamber suction inlet 89 of configuration is oppositely disposed.

Hereinafter, effect, the effect of said structure are illustrated.

Switching chamber throttle setting 92 of the inside with switching chamber air door 80 includes：The switching chamber of switching chamber throttle setting foreboard 93 Throttle setting back plate 94, the heat-barrier material (for example, foamed heat-insulating material 34) being arranged between them, located at heat-barrier material The space (wind path) of the inside of (for example, foamed heat-insulating material 34) is inserted with switching chamber air door 80.Moreover, in switching chamber air door Device 92 is installed in the state of the first partition wall 71 in advance, and the first partition wall 71 is loaded into heat insulating box 31, to hot box During 31 filling-foam heat-barrier material 34 of body, also fill simultaneously to the first partition wall 71.Thereby, it is possible to which throttle setting is pre-configured with In heat-insulated partition wall, and the assembly operation of freezer can be improved.Therefore, it is not required that irrational behaviour in assembling procedure Make, switching chamber throttle setting 92 reliably can be configured at defined position.

In addition, the downstream for the switching chamber air door 80 being arranged in switching chamber throttle setting 92 is branched into it is multiple, from many Individual switching chamber outlet 96a, 96b is to the transporting cold-air of switching chamber 36.Switching chamber outlet 96a from the upper direction of switching chamber 36 to cut The mode for changing discharge cold air in 97 on the box of room is configured.Switching chamber outlet 96b is with from the rear of switching chamber 36 to switching chamber box The mode of discharge cold air is configured in 98.It is uneven thereby, it is possible to reduce the temperature in switching chamber 36, defined temperature can be remained Degree distribution.

In addition, the cold air returned from switching chamber 36 to cooling chamber 43, by being formed at switching chamber return duct cover 76 and Space between one partition wall lower plate 74 and the back side shape in the partition wall 71 of heat-barrier material 75 and first corresponding with drain pan 48 Into space, be back to cooling chamber 43.That is, switching chamber return duct cover of the cold air from the top surface for being arranged at switching chamber 36 is returned In 76, by the bottom of drain pan 48, rear portion, cooler 44 is back to from the switching chamber suction inlet 89 at the back side of cooling chamber 43. Thus, the preceding surface of cooling chamber 43 is used as the suction inlet of the return cold air of refrigerating chamber 37 throughout whole width, it is possible to increase freezing The cooling capacity of room 37.

In addition, from refrigerating chamber 35 via refrigerating chamber suck it is that wind path 87 is returned to cooling chamber 43, be arranged at cooling chamber 43 The refrigerating chamber suction inlet 88 at the back side, is accordingly configured with the substantially whole width of cooler 44, from switching chamber 36 to cooling chamber 43 The part adjacent with switching chamber suction inlet 89 stage portion is set, be provided with switching chamber suction inlet together in the lower section of stage portion 89.Thereby, it is possible to make the return cold air from refrigerating chamber 35 efficiently return to cooler 44, and from the return of switching chamber 36 Cold air is also efficiently back to cooler 44.

In addition, in the lower section and the back side of ice temperature fresh-keeping box 41 that are arranged at the refrigerating chamber pipeline cover 81 at the back side of refrigerating chamber 35 Refrigerating chamber suction inlet portion 83 is provided with, so refrigerating chamber suction inlet portion 83 is hidden in the back side of ice temperature fresh-keeping box 41, energy Enough realize the raising of design.In addition, it is possible to increase the design freedom in refrigerating chamber suction inlet portion 83, refrigerating chamber pipe is also improved The overall design of road cover 81.

In addition, ice temperature fresh-keeping box 41 is cooled to temperature of 35 low 0~3 DEG C or so than refrigerating chamber, for making cold air from ice The ice temperature fresh-keeping box suction inlet portion 84 that warm crisper 41 is returned to cooling chamber 43 is configured together with refrigerating chamber suction inlet portion 83 In the back side of ice temperature fresh-keeping box 41.Thus, ice temperature fresh-keeping box suction inlet portion 84 is also hidden in the back side of ice temperature fresh-keeping box 41, The raising of the design comprising ice temperature fresh-keeping box suction inlet portion 84 can be realized.It is overall in refrigerating chamber 35 thereby, it is possible to improve Design.

The explanation carried out as more than, freezer of the invention includes：Generate the cooler of cold air；Make what is generated by cooler The blower fan that cold air is forcibly circulated；Store the cooling chamber of cooler and blower fan；Freezer room, cooling chamber is arranged at low temperature storage Hide the back side of room；Temperature is set to the high-temperature storage room higher than freezer room；With the storage for the bottom for being arranged at high-temperature storage room Hide box.In addition, the freezer of the present invention also includes：The low temperature suction wind path of cold air is imported from freezer room to cooling chamber；With The high temperature suction wind path of cold air is imported from high-temperature storage room to cooling chamber.In addition, in the freezer of the present invention, high temperature suction wind path The high temperature suction inlet portion positioned at high-temperature storage room, be configured at the back side of storage box.

So, high temperature suction inlet portion of the invention is hidden in the back of the body of the storage box for the bottom for being arranged at high-temperature storage room Face, it is possible to increase design and the design freedom for improving high temperature suction inlet portion.

In addition, in the present invention, the temperature of storage box is set to lower than high-temperature storage room, is imported from storage box to cooling chamber cold The storage box suction inlet portion of gas is configured at the back side of storage box.

According to the structure, storage box suction inlet portion is also hidden in the back side of storage box, can realize comprising storage box The raising of the design in suction inlet portion.

In addition, in the present invention, high temperature suction inlet portion and storage box suction inlet portion are configured together.

According to the structure, the design in high-temperature storage room can be further improved.

Industrial applicability

As described above, the structure of the freezer of the present invention will not increase the pressure loss of wind path, it is possible to increase cooler Heat exchange amount, so home-use or industrial freezer etc. can be applied to, forcibly make wind circulation carry out the cold of heat exchange But equipment.

Symbol description

30 freezers

31 heat insulating boxes

32 outer containers

Case in 33

34 foamed heat-insulating materials

35 refrigerating chambers (the first high-temperature storage room)

35a refrigerating-chamber doors

36 switching chambers (the second high-temperature storage room)

36a switching chambers door

37 refrigerating chambers (freezer room)

37a refrigerating chamber doors

38 ice-making compartments

38a ice-making compartments door

40 lower freezer compartments

40a lower freezer compartments door

41 ice temperature fresh-keeping boxes (storage box)

42 refrigerating chamber air doors

43 cooling chambers

44 coolers

44b coolers lower end

45a, 45b indulge partition wall

46 blower fans

47 Defrost heaters

48 drain pans (cooling chamber bottom surface)

49 drainpipes

50 evaporating pans

53 refrigerating chambers suck wind path

53a entrances

56 refrigerating chamber suction inlets (low temperature suction inlet)

59 Glass tube heaters

60 heater housings

71 first partition walls

72 second partition walls

73 first partition wall upper plates

74 first partition wall lower plates

75 heat-barrier materials

76 switching chamber return duct covers

80 switching chamber air doors

81 refrigerating chamber pipeline covers

82 outlets

83 refrigerating chamber suction inlet portions

84 ice temperature fresh-keeping box suction inlet portions

85 refrigerating chambers discharge wind path

87 refrigerating chambers suction wind path (high temperature suction wind path)

88 refrigerating chamber suction inlets (the 1st high temperature suction inlet)

88a refrigerating chamber suction inlets upper end (the 1st high temperature suction inlet upper end)

89 switching chamber suction inlets (the 2nd high temperature suction inlet)

89a switching chamber suction inlets upper end (the 2nd high temperature suction inlet upper end)

90 switching chambers suction wind path (high temperature suction wind path)

91 refrigerating chamber connecting portions (the 1st high-temperature storage room connecting portion)

92 switching chamber throttle settings

93 switching chamber throttle setting foreboards

94 switching chamber throttle setting back plates

96a, 96b switching chamber outlet

On 97 switching chamber boxes

Under 98 switching chamber boxes

201 refrigerant pipes

202 plate fins

203 elongated holes.

Claims (3)

1. a kind of freezer, it is characterised in that including：

Generate the cooler of cold air；

The blower fan for making the cold air generated by the cooler forcibly circulate；

Store the cooling chamber of the cooler and the blower fan；

Freezer room, the cooling chamber is arranged at the back side of the freezer room；

Temperature is set to the high-temperature storage room higher than the freezer room；

It is arranged at the storage box of the bottom of the high-temperature storage room；

The low temperature suction wind path of cold air is imported from the freezer room to the cooling chamber；With

The high temperature suction wind path of cold air is imported from the high-temperature storage room to the cooling chamber,

The high temperature sucks the high temperature suction inlet portion positioned at the high-temperature storage room of wind path, is configured at the back of the body of the storage box Face.

2. freezer as claimed in claim 1, it is characterised in that：

The temperature of the storage box be set to it is lower than the high-temperature storage room,

The storage box suction inlet portion that cold air is imported from the storage box to the cooling chamber is configured at the back side of the storage box.

3. freezer as claimed in claim 1 or 2, it is characterised in that：

The high temperature suction inlet portion and the storage box suction inlet portion are configured together.