CN109708377A - Refrigerator - Google Patents

Abstract

The present invention provides a kind of refrigerator, takes into account the storage volume and energy-efficient performance of food.The refrigerator has: the first storeroom of refrigerating temperature zone；Second storeroom of cryogenic temperature band；First evaporator of cooling above-mentioned first storeroom；Second evaporator of cooling above-mentioned second storeroom；Convey the first air blower of the air after above-mentioned first evaporator is cooled；And the second air blower of air of the conveying after above-mentioned second evaporator is cooled, and, above-mentioned first air blower is arranged in the turbofan of the position higher than above-mentioned first evaporator, and the size of the depth of above-mentioned first evaporator is identical with the depth of the air supply path of the part configured with above-mentioned turbofan.

Description

Refrigerator

Technical field

The present invention relates to refrigerators.

Background technique

As the background technique of the art, for example, having Japanese Unexamined Patent Publication 2004-101088 bulletin (patent document 1)。

Patent document 1 discloses a kind of refrigerator, wherein main body is formed by heat insulating box, the inner space of the heat insulating box It is divided by thermal wall and constitutes multiple storage spaces, from top, have refrigerating chamber, vegetable compartment, ice-making compartment, selection freezing or cold The selection room of hiding, freezing chamber, refrigerating chamber and vegetable compartment by the first cooler as refrigerated cooler, ice-making compartment, selection room, And freezing chamber is cooling by the second cooler as freezing cooler, has the first fan above the first cooler, Have the second fan, the first fan and the configuration of the second fan vertical above the second cooler.

Existing technical literature

Patent document

Patent document 1: Japanese Unexamined Patent Publication 2004-101088 bulletin

In refrigerator described in Patent Document 1, configure with being provided to the fan substantially vertical of the top of the first cooler, The front side of fan and back side are equipped with the space for making the direction conversion of stream, therefore, the depth of the air supply path of fan circumference Increase, the internal volume for leading to the problem of refrigerator reduces.In addition, in order to expand internal volume, if reduce the air supply path of fan circumference Depth, then air supply efficiency reduces, so that leading to the problem of the energy-efficient performance of refrigerator reduces.

Summary of the invention

Therefore, and it is an object of the present invention to provide a kind of can take into account the increase and decrease of internal volume and the raising of energy-efficient performance in the present invention Refrigerator.

In order to solve such project, refrigerator of the invention has: the first storeroom of refrigerating temperature zone；Cryogenic temperature band The second storeroom；First evaporator of cooling above-mentioned first storeroom；Second evaporator of cooling above-mentioned second storeroom；It is defeated Send the first air blower of the air after above-mentioned first evaporator is cooled；And conveying is after above-mentioned second evaporator is cooled Air the second air blower, above-mentioned refrigerator is characterized in that above-mentioned first air blower is arranged in than above-mentioned first evaporator The turbofan of high position, the size of the depth of above-mentioned first evaporator and the air-supply of the part configured with above-mentioned turbofan The depth on road is identical.

Invention effect

In accordance with the invention it is possible to provide a kind of refrigerator that can take into account the increase and decrease of internal volume and the raising of energy-efficient performance.

Detailed description of the invention

Fig. 1 is the main view of the refrigerator of embodiment 1.

Fig. 2 is the A-A cross-sectional view of Fig. 1.

Fig. 3 is the B-B cross-sectional view of Fig. 1.

Fig. 4 is the structure chart of the refrigerating cycle of the refrigerator of embodiment 1.

Fig. 5 is the configuration of the cooling mechanism of the refrigerator of embodiment 1.

Fig. 6 is the structure chart of the evaporator of the refrigerator of embodiment 1.

Fig. 7 is the perspective view of the freezing chamber air blower of embodiment 1.

Fig. 8 is the perspective view of the refrigerating chamber air blower of embodiment 1.

Fig. 9 (a) is the cross-sectional view of comparative example the case where being equipped with a propeller fan with indicating vertical, is (b) It indicates the cross-sectional view for being horizontally equipped with the comparative example in the case where a propeller fan, is (c) to indicate horizontally to install There is the cross-sectional view of the comparative example in the case where a path propeller fan.

Figure 10 is the figure for indicating the relationship of fan sky force characteristic and resistance curve of Fig. 9 (b) and Fig. 9 (c).

Figure 11 is the figure for indicating the relationship of fan sky force characteristic and resistance curve of Fig. 8 (a) and Figure 10.

Figure 12 be vertical cross-sectional view in the case where the turbofan of embodiment 1 is installed.

Figure 13 is the C-C cross-sectional view of Figure 12.

Figure 14 is the figure for indicating an example of operation mode.

Figure 15 is the enlarged drawing of the refrigerating chamber of Fig. 3.

Figure 16 is the figure for indicating the relationship of shelf and air supply path of the refrigerating chamber of embodiment 1.

Figure 17 is the cross-sectional view in the turbofan of position identical with Figure 15 observation embodiment 2.

Figure 18 is the figure for indicating the relationship of shelf and air supply path of 3 Leng KURA room of embodiment.

Figure 19 is the figure for indicating the relationship of shelf and air supply path of 4 Leng KURA room of embodiment.

In figure:

1-refrigerator, 2-refrigerating chambers, 3-ice-making compartments, 4-upper layer freezing chambers, 5-lower layer's freezing chambers, 6-vegetable compartments, 7- Freezing chamber (3,4,5 general names), 10-cabinets, the interior case of 10a-outer container, 10b-, 11-vacuum heat insulation materials, 12a, 12b, The heat-insulated partition wall of 12c-, 13-door leaf sets, 14a, 14b, 14c, 14b-shelf, 15-soft freezing chambers, 16a, 16b-evaporator Room, 17-shells, 17a-shell lower surface, 17b-shell inflow entrance, 17c-shell tongue, 18a, 18b-discharge Wind path, 19a, 19b-outlet, 20a, 20b, 20c-refluxing opening, 21-opening portions, (wind path resistance applies 21a-turn-around wall Mechanism), 22-reflux wind paths, 23a, 23b-aqueduct, 24a, 24b-heater, 25a, 25b-drainpipe, 26-evaporations Ware, 27-covers, 28-temperature sensors, 29-control base boards, 30-air blowers, the depth ruler of 112a-periphery air supply path It is very little, the depth size of 31-evaporator 105a, the size vertical with the flow direction of air of 32-discharge wind paths, 33-connections Flow path, 40-wall parts, the upper surface of 41-wall parts, 50-wind direction boards, 52-heat-barrier materials, 53-covers, 60-from opening The minimum widith of the connection flow path 33 of portion 21 to evaporator room 16a, the interlobate minimum widith of 61-air blower 112a, 62- First wind path, the 63-the second wind path, 64-interconnecting parts, 100-compressors, 101-casees outer radiators, the heat dissipation of 102-sides are matched Pipe, the heat dissipation piping of 103-fronts, 104a, 104b-capillary, 105a, 105b-evaporator, 106a, 106b-gas-liquid separation Device, 107-triple valves, 108-check valves, 109-drying machines, 110-refrigerant confluence portions, 111-refrigerant pipings, 112a, 112b-air blower, 113-air blowers, 114-Machine Rooms, 115-fins, 116-heat-transfer pipes.

Specific embodiment

Hereinafter, being suitably described in detail referring to attached drawing to the embodiment of the present invention.

[embodiment 1]

Referring to Fig.1~Figure 16 is illustrated the embodiment 1 of refrigerator of the invention.

Fig. 1 is the main view of the refrigerator of embodiment 1.As shown in Figure 1, the refrigerator 1 of present embodiment is from top, successively structure The ice-making compartment 3 and upper layer freezing chamber 4, lower layer's freezing chamber 5 and vegetable compartment 6 being set side by side at refrigerating chamber 2, left and right.Hereinafter, system Icehouse 3, upper layer freezing chamber 4 and lower layer's freezing chamber 5 are referred to as freezing chamber 7.Refrigerating chamber 2 is divided by left and right, has split rotation Rotatable refrigerating chamber door leaf 2a, door leaf 2b, ice-making compartment 3, upper layer freezing chamber 4, lower layer's freezing chamber 5, vegetable compartment 6 have drawer respectively Door leaf 3a, door leaf 4a, door leaf 5a, the door leaf 6a of formula.In addition, the height H1 of Leng KURA room 2 is configured to bigger than the height H2 of freezing chamber 7 (H1 > H2).

Freezing chamber 7 is substantially the storeroom of cryogenic temperature band (lower than 0 DEG C) will to be set as in case, such as be averagely set as -18 DEG C or so, refrigerating chamber 2 and vegetable compartment 6 are that the storeroom of refrigerating temperature zone (0 DEG C or more) will be set as in case, for example, refrigerating chamber 2 is flat 4 DEG C or so are set as, vegetable compartment 6 is averagely set as 7 DEG C or so.For storeroom, freezing chamber 7 is configured at refrigerating chamber 2 and vegetable Between dish room 6, the area that the freezing chamber 7 that temperature can be made minimum is contacted with the outer air of case is minimum, therefore, can reduce outside case Air improves the energy-saving of refrigerator 1 to the hot intrusion volume of refrigerator 1.

Fig. 2 is the A-A cross-sectional view of Fig. 1, and Fig. 3 is the B-B cross-sectional view of Fig. 1.As shown, leading to outside the case of refrigerator 1 and in case The cabinet 10 crossing the filling-foam heat-barrier material (for example, polyurathamc) between outer container 10a and interior case 10b and being formed separates. In cabinet 10, other than foamed heat-insulating material, multiple vacuum heat insulation materials 11 are also equipped between outer container 10a and interior case 10b (dotted line of Fig. 3).Here, vacuum heat insulation material 11 is constituted and wrapping up the core materials such as mineral wool, polyurethane with outer packaging material.Outsourcing Material contains metal layer (for example, aluminium) in order to ensure barrier properties for gases, and therefore, the peripheral side of vacuum heat insulation material 11 passes through outsourcing The heat transfer of material and be easy transmitting heat.

Refrigerating chamber 2 and upper layer freezing chamber 4 and ice-making compartment 3 are separated by heat-insulated partition wall 12a, similarly, lower layer's freezing chamber 5 It is separated with vegetable compartment 6 by heat-insulated partition wall 12b.In addition, respectively being stored up in ice-making compartment 3, upper layer freezing chamber 4 and lower layer's freezing chamber 5 The front side for hiding room is equipped with heat-insulated partition wall in such a way that the air inside and outside case cannot be flowed via the gap of door leaf 3a, 4a, 5a 12c.Multiple door leafs are set on the inside of the case of door leaf 2a, 2b of refrigerating chamber 2 and cover 13, multiple shelf 14a, 14b, 14c, 14d, are divided At multiple storage spaces.Multiple shelf 14a, 14b, 14c, 14d (are not schemed by multiple support portions set on interior case 10b of two sides Show) support.In addition, being provided with support portion in shelf 14a, 14b, 14c with respectively different height, therefore can be according to storage item Adjust the setting height of shelf 14a, 14b, 14c.

Have respectively that integrally extracted ice-making compartment container is not (with door leaf 3a, 4a, 5a, 6a in freezing chamber 7 and vegetable compartment 6 Diagram), upper layer freezing chamber container 4b, lower layer freezing chamber container 5b, vegetable compartment container 6b.

Has the soft freezing chamber 15 for being set as lower than the temperature band of refrigerating chamber 2 above heat-insulated partition wall 12a.Soft freezing (do not schemed by the control of evaporator 105a and air blower 112a and the heater in heat-insulated partition wall 12a for example room 15 Show), it allows hand over to be set as example, about 0~3 DEG C of refrigerating temperature zone of mode and being set as example, about -3~the 0 of cryogenic temperature band DEG C mode.

Evaporator 105a is the cross-fin tubing heat exchanger of freezing chamber 7, and is set to the back side for being provided to refrigerating chamber 2 In the evaporator room 16a of side.Pass through with the evaporator 105a air for carrying out heat exchange and becoming low temperature set on than evaporator 105a The air blower 112a of high position and via shell 17, discharge wind path 18a, upward the outlet 19a that is open be delivered to it is cold Room 2 is hidden, is cooled down in refrigerating chamber 2.The air for being delivered to refrigerating chamber 2 is returned from the underlying refluxing opening 20a of evaporator room 16a Evaporator 105a.

In addition, having opening portion 21 in the lower part of shell 17.Thereby, it is possible to inhibit to flow through the knot come from discharge wind path 18a Dew is detained, and prevents the movement of air blower 112a bad.

It, can be without using the heating such as heater by acting air blower 112a and evaporator 105a flows refrigerant Source and be melted in the air side of evaporator 105a surface growth frost.In addition, when evaporator 105a carries out defrosting operating, conveying Air to refrigerating chamber 2 is 0 DEG C or so, therefore, can be cooling by refrigerating chamber 2 while defrosting.Therefore, in the present embodiment In form, it is configured to, compared to the defrosting for having used the heating sources such as heater, power consumption is low, and can also cool down when defrosting operating Refrigerating chamber 2, therefore, even if can not also damage the energy-efficient performance of refrigerator 1 in the case where frequent progress defrosts and operates.

Heater 24a is equipped on the surface of the aqueduct 23a of the lower section positioned at evaporator 105a.By to heater 24a It is powered, freezes even if being stranded in aqueduct 23a water, also can ice be melted and be drained.In the thawing water warp that aqueduct 23a is generated Evaporating dish 26 set on the top of compressor 100 is expelled to by drainpipe 25a.

Evaporator 105b is the cross-fin tubing heat exchanger of freezing chamber 7, and the back side being set in freezing chamber 7 is matched In standby evaporator room 16b.Pass through with the evaporator 105b air for carrying out heat exchange and becoming low temperature set on evaporator 105b's The air blower 112b of top is delivered to freezing chamber 7 via discharge wind path 18b, outlet 19b, to cooling down in freezing chamber 7. The air for being delivered to freezing chamber 7 passes through the freezing chamber refluxing opening 20b Returning evaporimeter 105b positioned at the lower section of evaporator room 105b.

In the refrigerator 1 of the present embodiment, become the air of low temperature in evaporator 105b by directly transporting, also cooling vegetables Room 6.In the air that evaporator 105b becomes the evaporator room 16b of low temperature by air blower 112b, (do not scheme via vegetable compartment wind path Show), vegetable compartment windscreen (not shown) be delivered to vegetable compartment 6, to being cooled down in vegetable compartment 6.The case where vegetable compartment 6 is low temperature Under, vegetable compartment windscreen is closed, to inhibit the cooling of vegetable compartment 6.In addition, being delivered to the air of vegetable compartment 6 from set on heat-insulated point Refluxing opening 20c in front of the lower part of next door 12b is via reflux 22 Returning evaporimeter room 16b of wind path.Here, in heat-insulated partition wall The communication port (not shown) that 12b is formed with a part for constituting vegetable compartment wind path becomes via the communication port in evaporator 105b The air of low temperature is supplied to vegetable compartment 6.

Heater 24b is equipped in the lower section of evaporator 105b.By being powered to heater 24b, evaporator can be melted in Therefore the frost of the surface growth of the air side of 105b is able to suppress the deterioration of the cooling performance of heat exchanger 105.It is produced when defrosting Raw thawing water falls to the aqueduct 23b of the lower part set on evaporator room 16b, is expelled to via drainpipe 25b and is set to machinery The evaporating dish 26 on the top of the compressor 100 in room 114.

Temperature, the temperature humidity of humidity of air outside detection case are equipped in the inside for the cover 27 that the upper surface of refrigerator 1 is equipped with Sensor 28.It is configured with control base board 29 in the top back side of refrigerator 1, according to the control method for being stored in control base board 29, Implement the control of refrigerating cycle and supply air system.

Fig. 4 is the structure chart of the refrigerating cycle of the refrigerator of embodiment 1.The refrigerator 1 of the present embodiment has compression refrigerant Compressor 100 is piped 103 as radiator 101 outside the case of cooling mechanism and side heat dissipation piping 102, front heat dissipation, makes to freeze Agent decompression capillary 104a and 104b, as heat-absorbing body evaporator 105a and 105b, prevent liquid refrigerant flow into pressure The gas-liquid separator 106a and 106b of contracting machine 100, the triple valve 107 for controlling refrigerant flow path, prevent refrigerant adverse current list The drying machine 109 of moisture into valve 108, removal refrigerating cycle and the refrigerant confluence portion 110 for connecting refrigerant flow path, They are connected by refrigerant piping 111, so that circularly cooling agent, constitutes refrigerating cycle.Here, being made by air blower 112a Air flowing, evaporator 105a promote the cooling of refrigerating chamber 2, in addition, air is flowed by air blower 112b, evaporator 105b Promote the cooling of freezing chamber 7.Similarly, flow air by air blower 113, the outer radiator 101 of case promotes dissipating for refrigerator 1 Heat.

The refrigerant being discharged from compressor 100 is successively flowed to be dissipated in radiator 101, side heat dissipation piping 102, front outside case Heat piping 103, drying machine 109, reach triple valve 107.Triple valve 107 has outflux 107a and outflux 107b, flows into three The one party of the refrigerant flow direction outflux 107a and outflux 107b of port valve 107.

Under the refrigeration mode of refrigerant flow direction outflux 107a, refrigerant is successively flowed in capillary 104a, evaporator Then 105a, gas-liquid separator 106a, refrigerant confluence portion 110 return to compressor 100.It is low to become low pressure in capillary 104a The refrigerant of temperature is flowed in evaporator 105a, and the air in evaporator 105a and refrigerating chamber 2 carries out heat exchange, to refrigerating chamber 2 Storage item is cooled down.

Under the frozen mode of refrigerant flow direction outflux 107b, refrigerant is successively flowed in capillary 104b, evaporator Then 105b, gas-liquid separator 106b, check valve 108, refrigerant confluence portion 110 return to compressor 100.Here, check valve 108 will not flow from refrigerant confluence portion 110 to the side gas-liquid separator 106b with being set as refrigerant.Become low in capillary 104b The refrigerant for forcing down temperature is flowed in evaporator 105b, and evaporator 105b and the indoor air of freezing carry out heat exchange, to freezing chamber 7 Storage item cooled down.

Fig. 5 is the configuration of the cooling mechanism of the refrigerator of embodiment 1.The outer radiator 101 (not shown) of case is arranged in machinery The heat exchanger of the fin tube type of room 114, side heat dissipation piping 102 be along refrigerator 1 side wall surface configure heat-dissipating pipe, before dissipate Heat piping 103 is arranged in the heat-dissipating pipe on the inside of the leading edge of heat-insulated partition wall 12a, 12b, 12c (referring to Fig. 2) of refrigerator 1.Separately Outside, side heat dissipation piping 102 is embedded in the side outer container 10a in the cabinet 10 of refrigerator 1.Front heat dissipation piping 103, which is embedded in, to be claimed For the front side of the refrigerator 1 of heat-insulated partition wall 12a, 12b, 12c (referring to Fig. 2) of each storeroom of segmentation.In addition, front heat dissipation is matched Pipe 103 not only radiates, and also has the function of preventing heat-insulated partition wall 12a, 12b, 12c from condensing.

Fig. 6 is the structure chart of the evaporator of the refrigerator of embodiment 1, and Fig. 6 (a) indicates the structure chart of refrigeration evaporator, Fig. 6 (b) structure chart of freezing evaporator is indicated.As shown in fig. 6, evaporator 105a and evaporator 105b are cross-fin tubular type heat Exchanger is configured to be bent the fin 115 that multiple heat-transfer pipe 116 runs through multiple aluminums.In the present embodiment, evaporator The relationship of the average stacking interval Pf2 of the fin of the average stacking interval Pf1 and evaporator 105b of the fin of 105a is configured to Pf1 ≤ Pf2, moreover, the relationship of the height H4 of the height H3 and evaporator 105b of evaporator 105a are configured to H3≤H4, evaporator The relationship of the height W2 of the width W1 and evaporator 105b of 105a are configured to W1≤W2.Evaporator 105b can ensure to pass as a result, Heat area, and inhibit the blocking of the stream of air side because of caused by frost growth, by reducing the energization number of heater 24b, Improve the energy-efficient performance of refrigerator 1.On the other hand, evaporator 105a can ensure heat transfer area, and be minimized, because This, can not damage internal volume that is energy-saving, and increasing refrigerating chamber 2.

In the present embodiment, Pf1 is set as 3mm, Pf2 is set as 5mm.By being arranged to such size, even if evaporating In the case that the frost of device 105a and evaporator 105b growth melts, also can reliably it drain.In addition, using in the present embodiment Size other than in the case where, as long as the relationship of Pf1≤Pf2 is set up, it will be able to obtain same effect.

Fig. 7 is the perspective view of the freezing chamber air blower of embodiment 1.The air blower 112b of the freezing chamber 7 of the present embodiment Embodiment use propeller fan.In the present embodiment, the blade of propeller fan is configured to three, by blade Diameter is set as 110mm, and with about 1100~1600min^-1Revolving speed movement.By acting air blower 112b, from the suction of fan Enter side towards blowout lateral edge axial flow direction air-supply.

As shown in Fig. 2, the distance of the up and down direction of freezing chamber 7 is shorter than refrigerating chamber 2 (H1 > H2), and freezing chamber 7 is equipped with Evaporator 105b up and down direction distance than the evaporator 105a long (H4 > H3) that refrigerating chamber 2 is equipped with, therefore, from evaporator It is short to the path of outlet.Therefore, it is discharged from the air that fan is discharged towards the front side of freezing chamber 7.It is blown in such front In air supply path out, as the installation form of fan, by using sucking propeller fan identical with the direction of blowout, energy Enough configurations for simplifying discharge wind path 18b and outlet 19b are capable of increasing air quantity by reducing the ventilation resistance of freezing chamber 7.

In addition, being always zubzero temperature band and being difficult in the freezing chamber 7 to defrost, by making as propeller fan With the big form of blade pitgh, to be not easy to cause the movement of the refrigerator 1 generated by the frost growth due on the periphery air blower 112b not It is good.

Fig. 8 is the perspective view of the refrigerating chamber air blower of embodiment 1.In the air blower of the refrigerating chamber 2 of the present embodiment In the embodiment of 112a, turbofan is used.As shown, being inhaled when acting turbofan from the axial direction of turbofan Inlet air is transported to peripheral side by centrifugal force, sends out from peripheral side along complete cycle.In addition, turbofan is the air blast of high static pressure type Machine, therefore compared with propeller fan, the characteristic with air quantity easy to increase at high static pressure (ventilation resistance is big).

Hereinafter, the reasons why using turbofan is described in detail using Fig. 9 to Figure 12.

Fig. 9 (a) is the cross-sectional view of the comparative example be equipped with a propeller fan with indicating vertical in the case where, Fig. 9 (b) be comparative example in the case where indicating horizontally to be equipped with a propeller fan cross-sectional view, Fig. 9 (c) is horizontal The cross-sectional view of comparative example in the case where one path propeller fan is installed.

As shown in Fig. 9 (a)~(c), as the air blower of refrigerating chamber, usually using propeller fan.

As shown in Fig. 9 (a), as air blower 112a, substantially it is configured in the form of propeller fan to vertical, uses Front side and back side positioned at propeller fan are needed in the space for turning to flow direction.Therefore, compared to evaporator 105a's Depth size 31, the depth size 30 of the air supply path on the periphery air blower 112a is bigger, and the internal volume of refrigerating chamber 2 easily reduces.

As shown in Fig. 9 (b), as air blower 112a, substantially horizontally it is configured in the form of propeller fan, because For relative to flowing to clear, so act while air supply efficiency can not be damaged, still, the air supply path on the periphery air blower 112a Depth size 30 need to be equivalent to the diameter of air blower 112a.Therefore, the depth size 31 compared to evaporator 105a, air blower The depth size 30 of the air supply path on the periphery 112a is bigger, and the internal volume of refrigerating chamber 2 easily reduces.

As shown in Fig. 9 (c), in the case where reducing the diameter D of propeller fan as air blower 112a, it can press down The reduction of internal volume processed, still, air quantity are reduced, and energy-efficient performance reduces.Therefore, in the form of Fig. 9 (c), as air blower 112a is configured with multiple (for example, two) propeller fans side by side and substantially horizontally on the left and right directions of refrigerator 1, should In the case of, the depth size 30 of the air supply path on the periphery air blower 112a can be made close to the depth size 31 of evaporator 105a, really Protect sufficient air quantity.But due to configuring air blower 112a side by side, grow up and resistance of divulging information in the surface frost of evaporator 105a In the case that power increases, air quantity is easily reduced, and there are problems that energy-efficient performance reduction.It is given reasons using Figure 10.

Figure 10 is the figure of the fan aerodynamic characteristic for indicating Fig. 9 (b) and Fig. 9 (c) and the relationship of resistance curve.Solid line indicates figure 9 (b) form, dotted line indicate the situation that propeller fan is one under the form of Fig. 9 (c), and chain-dotted line is indicated in Fig. 9 (c) under form, side by side the case where two propeller fans of configuration.In addition, here, for easy understanding characteristic, indicates The identical situation of the revolution of fan indicates each operating point with black circle.

As shown in Figure 10 (a), in the normal operation of the unattached frost of evaporator, the condition in the high air quantity of low static pressure, because This resistance curve describes gentle curve as shown in figure.Relative to the form (solid line) of Fig. 9 (b), when as shown in Fig. 9 (c) When reducing fan diameter (dotted line), air quantity and static pressure are reduced.Moreover, if having two propeller fans in the form of Fig. 9 (c) (chain-dotted line), then, relative to one situation, the air quantity of static pressure 0 is twice.Therefore, the form and Fig. 9 of Fig. 9 (b) can be made (c) form (two propeller fans) is with the movement of same air quantity.

As shown in Figure 10 (b), in the case where the surface of evaporator is grown with frost, the condition in the low air quantity of high static pressure, Therefore, resistance curve describes precipitous curve as shown in figure.Accordingly, with respect to the form of Fig. 9 (b), the form (spiral shell of Fig. 9 (c) Propeller type fan is two) cause air quantity to reduce, so that the energy-efficient performance of refrigerator 1 reduces.

In the conventional example as described above equipped with propeller fan, it is present to ensure that energy-efficient performance and expands refrigeration The project of the internal volume of room 2, even if there is also in high static pressure in the case where improving the diameter and number of propeller fan The project that low air quantity condition downdraft easily reduces.

Figure 11 is the aerodynamic characteristic and resistance for indicating same blade diameter, the propeller fan of same revolution and turbofan The figure of the relationship of force curve.As shown in Figure 11 (a), under the normal operation of the unattached frost of evaporator 105a, turbine is being installed The case where fan and in the case where being equipped with propeller fan, it can be ensured that same air quantity.As shown in Figure 11 (b), steaming In the case that the surface of hair device 105a is grown with frost, by installing turbofan as shown in this embodiment, compared to being equipped with spiral shell The case where propeller type fan, is capable of increasing air quantity.In the present embodiment, make air blast when evaporator 105a defrosts as described above Machine 112a movement, therefore improved by the efficiency of defrosting operating, it also can be improved the energy-efficient performance of refrigerator 1.

In addition, as shown in this embodiment, as the air blower with the characteristic that will radially be blown out along the stream axially sucked Form, other than the turbofan that the present embodiment uses, also with sirocco fan and radial fan form.In general, The blade number of turbofan in these forms is few.By using the few turbofan of blade number, can be difficult to cause because The blocking of the stream of air side caused by the growth of interlobate frost, due to the interference of the growth portion of the frost on air supply path and blade Caused movement is bad.

Therefore, according to the present embodiment, propeller fan is selected by the form of the air blower 112b to freezing chamber 7, and Turbofan is selected to the form of the air blower 112a of refrigerating chamber 2, can take into account the internal volume of refrigerator 1 increase and higher section It can performance.

Moreover, the blade number and revolution because of fan can be made by keeping the form of two air blowers 112a, 112b different Caused by noise frequency band dispersion, therefore can prevent refrigerator 1 generate noise increase sharply, the sense of hearing variation.This In embodiment, turbofan (is obtained because of blade number Z1 with noise caused by movement revolving speed N1 as Z1 is multiplied with N1 The NZ sound of the value arrived) occur in 183~267s^-1, because of blade number Z2 and caused by acting revolution N2 of propeller fan Noise (the NZ sound as value obtained from Z2 is multiplied with N2) occurs in 55~80s of frequency^-1.Therefore, because the two frequency bands Difference meets N1 × Z1 ≠ N2 × Z2 relationship, so the variation of the increase sharply of noise, the sense of hearing can be prevented.

Moreover, turbofan is 367~533s for the noise (2NZ sound) of the multiple of NZ sound^-1, propeller fan For 110~160s^-1.Therefore, in the case where other than 1NZ sound also including the generation range of 2NZ sound, two air blower 112a, The frequency band that 112b is generated is different, therefore, can further prevent the increase sharply of noise, the variation of sense of hearing.In addition, turbine wind The above-mentioned frequency band of fan and propeller fan is compared using the average value more than set time, and frequency band wink is not interfered Between it is consistent.

Figure 12 be vertical the case where being equipped with the turbofan of embodiment one cross-sectional view.As shown in figure 12, in this reality It applies in the refrigerator of example, configures turbofan as air blower 112a vertical.In addition, side end is located at before air blower 112a Than backrest surface side in side end before evaporator 105a.Also, the vertical of the vertical projection and evaporator 105a of air blower 112a Projection at least part is overlapped, and in the present embodiment, the vertical of evaporator 105a is contained in for the vertical projection of air blower 112a Configuration in projection.

In the present embodiment, make 10, blade of turbofan, constitute blade diameter by 100mm, with about 1100 ~1600^-1Rotation speed acted.Turbofan has the characteristic for blowing out the flow direction sucked in the axial direction radially, because This, does not need wide space between air blower 112a and the back side of refrigerator 2.As a result, due to can not damaging blowing efficiency Make to configure the depth size 30 of the air supply path of the part (around air blower 112a) of air blower 112a and the depth of evaporator 105a Size 31 is equal, therefore, can help to the increase of internal volume.It is in this it is " equal " refer to from relative to air blower 112a and front The back side of the opposed wall part 40 in side to interior case 10b face side the distance (depth of the air supply path around air blower 112a Size 30) it relative to the depth size 31 of evaporator 105a is within ± 20%, within preferably ± 10%.In addition, wall part 40 In the case where not being straight in vertical direction, the depth size 30 of air supply path is from the upper end of air blower 112a to the height of lower end Degree range is averaged.

In addition, in the present embodiment, having air blower 112a and shell 17, therefore, lower section above evaporator 105a The temperature of side is lower than the top of refrigerating chamber 2.Therefore, when fan stops, since air utilizes free convection from the top to the bottom Side flowing, therefore, the cold air of the zubzero temperature band around evaporator 105a is difficult to flow to air blower 112a and shell 17, it is difficult to Cause the dew for being attached to turbofan and shell freeze or by it is upper frost, freeze caused by movement it is bad.

As shown in figure 12, has opening portion 21 in the lower surface 17a of shell 17.In addition, opening portion 21 is to become shell 17 The mode of lowest part have the gradient of inclined angle alpha (in the present embodiment, 1 ゜ of tilt angle).Therefore, by shell 17 Lowest part has opening portion 21, can be discharged and be stranded in the intracorporal dew of shell.In addition, passing through the lower surface 17a with shell Gradient, can be improved drainage performance.

In addition, having in the connection flow path 33 from opening portion 21 to evaporator room 16a makes wind path by that will flow bending The increased turn-around wall 21a of power (wind path resistance applying mechanism).When air blower 112a drives, air is leaked out from opening portion 21.Therefore, A part of air after sucking from inflow entrance 17b and being boosted by air blower 112a is not towards discharge wind path 18a from opening Portion 21 flows into evaporator room 16a through connection flow path 33, returns again to inflow entrance 17b and boosts (stream being represented by dashed line in Figure 12). Due to the stream, reduced in the air quantity that refrigerating chamber 2 recycles, energy-efficient performance reduces.

As shown in figure 12, the refrigerator of the present embodiment applies machine as wind path resistance to improve the resistance for being connected to flow path 33 Structure and have turn-around wall 21a.By having such wind path resistance applying mechanism, via the air quantity for the air that opening portion 21 is discharged It reduces, is able to suppress the reduction of energy-efficient performance.In addition, as long as wind path resistance applying mechanism, which is compared, is equipped with opening portion 21 in wall surface And the case where flowing directly out to evaporator room 16a, wind path resistance can be made to increase, be just also possible to other mechanisms.For example, passing through The distance for extending circulation flow path 33 can also be such that wind path resistance increases, if the refrigerator of the present embodiment is in this way, by utilizing turn-around wall 21a is bent stream and increases wind path resistance, is formed shorter by connection flow path 33, so as to mitigate in connection flow path 33 Freeze danger.

In addition, connection flow path 33 front side be equipped with turn-around wall 21a a part, formed interfere towards inflow entrance 17b to The directive property flow path of front discharge.The air for being expelled to evaporator room 16a as a result, reaches the resistance increase before inflow entrance 17b, difficult To be drawn into inflow entrance 17b, therefore, the air quantity for the air being discharged via opening portion 21 is reduced, and is able to suppress the drop of energy-efficient performance It is low.

Figure 13 is the C-C cross-sectional view of Figure 12.Air blower 112a is provided in shell 17.When making air blower 112a clockwise When (the solid arrow direction in Figure 13) rotates, air is flowed as shown in dotted arrow in Figure 13 towards discharge wind path 18a.Separately Outside, portion of air opening 21 flows out to evaporator room 16a.The connection flow path 33 of the lower section of opening portion 21 is formed as logical Cross the right direction that turn-around wall 21a is directed toward in Figure 13 and the directive property flow path being discharged.As a result, just from opening portion 21 be discharged air and The direction of speech, the circumfluence formed along the direction of rotation of air blower 112a turns substantially 180 degree and is discharged, therefore is connected to the wind of flow path 33 Roadlock power increases, and the air stream leaked out from opening portion 21 is reduced, so as to inhibit the reduction of energy-efficient performance.

In addition, as shown in figure 13, shell 17 has conduct in the side walls lower end of the side air blower 112a of discharge wind path 18a The tongue 17c of the gyrate starting point for expanding flow path.The width of blade of fan is being set as Lf, it will be from tongue 17c to across wind When the width of the right direction end of the shell 17 of fan is set as Lk, it is configured to Lf and is in the range of Lk.Thereby, it is possible to prevent from being discharged The dew that wind path 18a, outlet 19a (being recorded in Fig. 2) are generated drips below tongue 17c in stream downwardly gravitating When, it is attached to the blade of air blower 112a.That is, forming the refrigerator of high reliablity, it is difficult to cause to cause because of interlobate icing Wind pushing performance reduce, caused by the ice because of growth is contacted with shell 17 noise generation etc..

In addition, being configured to, (in the present embodiment, 3mm is recorded the average stacking interval Pf1 of the fin compared to evaporator 105a In Fig. 6), the minimum widith 60 (in the present embodiment, about 6mm) and drum of the connection flow path 33 from opening portion 21 to evaporator room 16a The interlobate minimum widith 61 (in the present embodiment, about 6mm) of blower 112a is bigger.It is cold by being constituted with above-mentioned size relationship Room 2 is hidden, in frost growth, is easiest to block between the fin of evaporator 105a.Therefore, pass through the wing in order to avoid evaporator 105a Blocking between piece and carry out defrosting operating, form the refrigerator of high reliablity, it is difficult to block the relatively large connection flow path of width dimensions 33, interlobate blocking.

Figure 14 is an example of operation mode related to the present embodiment.Here, showing outside air is relatively high temperature The case where spending (for example, 32 DEG C) and not being low humidity (for example, 60%RH).Moment t0 is to start to carry out the cold of cooling refrigerating chamber 2 At the time of transport contraband turns.In refrigeration operating, the side outflux 107a is arrived into the setting of triple valve 107, drives compressor 100, refrigerant stream To evaporator 105a, evaporator 105a is made to become low temperature.The state operates air blower 112a, thus using evaporator 105a is passed through The cooling refrigerating chamber 2 of air as low temperature.Here, the temperature of the evaporator 105a in refrigeration operating is than in aftermentioned freezing operating Evaporator 105b high.In general, the temperature of evaporator is higher, COP (ratio of the cooling heat relative to the input of compressor 100 Example) it is higher, energy-efficient performance is higher.Therefore, compared to needing the temperature by evaporator 105b to be formed as low temperature (for example, -25 DEG C) Freezing chamber 7 improves the temperature (for example, being set as -6 DEG C) of evaporator 105a, to improve energy-efficient performance.In addition, in this reality It applies in the refrigerator 1 of example, it will in the way of refrigerating the evaporator 105a temperature in operating than the evaporator 105b high in freezing operating The revolving speed of compressor 24 in refrigeration operating is set as the speed lower than in freezing operating.

It is operated by refrigeration, refrigerating chamber 2 is cooled, when temperature of refrigerating chamber is reduced to TRoff (moment t1), transports from refrigeration Turn to be switched to refrigerant-recovery operating.In refrigerant-recovery operating, make compressor 100 in the case where triple valve 107 is full-shut position The refrigerant in evaporator 105a is recycled in driving.Inhibit the lack of refrigerant in next freezing operating as a result,.In addition, this When, drive air blower 112a, thus, it is possible to the residual refrigerant in evaporator 105a is neatly used in the cold of refrigerating chamber 2 But, the refrigerant also, in evaporator 105a evaporates and is accessible to compressor 100, therefore by returning in the shorter time A large amount of refrigerant is received, so as to improve cooling efficiency.

At the end of refrigerant-recovery operating (moment t2), it is switched to and carries out cooling freezing operating to freezing chamber 7.Cold Freeze in operating, the side outflux 107b is arrived into the setting of triple valve 107, refrigerant is flowed to evaporator 105b, by evaporator 105b shape As low temperature.Air blower 112b is operated under the state, thus using the air of low temperature is become by evaporator 105b to freezing Room 7 is cooled down.It carries out freezing operating to become TFoff (moment t5) to freezer temperature.In addition, in freezing operating, It opens vegetable compartment windscreen (not shown), before vegetables room temperature becomes TRoff (moment t3), cooling vegetable compartment 6.

Moreover, being evaporated the defrosting operating of device 105a in freezing operating in the refrigerator 1 of the present embodiment.Evaporation The defrosting of device 105a runs through blower 112a to carry out.Refrigerant is not flowed in evaporator 105a in freezing operating It is dynamic, therefore when the air of refrigerating chamber 2 passes through evaporator 105a, pass through the heat of the refrigerating chamber 2 higher than evaporator 105a with temperature It exchanges and heating evaporation device 105a and the frost for being attached to evaporator 105a.The defrosting of evaporator 105a is carried out using the heating.This Outside, air by evaporator 105a and is attached to the white cooling of evaporator 105a, which is delivered to refrigeration by air blower 112a Therefore room 2 can cool down refrigerating chamber 2.Therefore, it can melt without using heater and be attached to evaporator 105a's Frost, moreover, the defrosting operating of the evaporator 105a of the present embodiment is energy saving because also having carried out the cooling of refrigerating chamber 2 Defrosting that can be high operates.

In addition, being operated by the defrosting, other than evaporator 105a, can similarly melt in shell 17, air blower Frost, the ice of 112a growth.The defrosting operating carry out to evaporator 105a temperature become TDR (in the refrigerator of the present embodiment, TDR =3 DEG C) (moment t4).

When the defrosting of evaporator 105a operates and freezing operating is all satisfied termination condition (moment t5), carry out again in threeway Valve 107 is the refrigerant-recovery operating for driving compressor 100 under full-shut position, recycles the refrigerant in evaporator 105b, suppression Make the lack of refrigerant in next refrigeration operating.In addition, at this time driving air blower 112b, thus, it is possible to by evaporator Residual refrigerant in 105b is employed flexibly for the cooling of freezing chamber 7, and the refrigerant evaporation in evaporator 105b, is easy Up to compressor 100, a large amount of refrigerant can be recycled in the shorter time, therefore can be improved cooling efficiency.

When becoming moment t6, refrigeration operating is again returned to, above-mentioned operating is repeated.It is the ice of the present embodiment above The basic cooling operating and the defrosting of evaporator 105a control of case.By these operate, can by refrigerating chamber 2, freezing chamber 7 with And vegetable compartment 6 is cooling, and maintains scheduled temperature, and is able to suppress the frost growth of evaporator 105a.

In addition, before the termination condition (temperature of evaporator 105a becomes TDR) for the defrosting operating for meeting evaporator 105a In the case where the termination condition (freezer temperature becomes TFoff) for meeting freezing operating, in the defrosting for continuing evaporator 105a In the state of operating, compressor 100 is set as disconnecting.Then, if meeting the termination condition of the defrosting operating of evaporator 105a, Then compressor 100 is set as connecting, be operated into refrigeration.Thereby, it is possible to inhibit to melt on the way be attached to evaporator 105a, Shell 17, the frost of air blower 112a and defrosted water are cooled again in refrigeration operating and freeze again.

In addition, in the case where moment t1 and moment t2 freezer temperature are lower than predetermined value, or at moment t5 and moment T6 stops compressor 100 in the case that temperature of refrigerating chamber is lower than predetermined value.Thereby, it is possible to inhibit the sub-cooled in case.

In the refrigerator of the present embodiment controlled above, defrosting duration of runs of refrigerating chamber (t1 at the time of in Figure 14 ~t4) it is longer than the refrigeration duration of runs (t0~t1 at the time of in Figure 14).Thereby, it is possible to make shell 17 and the periphery air blower 112a The time that the temperature of air rises is longer than the time that temperature reduces, therefore shell 17 and air blower 112a can not use heater And be sufficiently heated, become the high refrigerator of energy-efficient performance.

In addition, the refrigerator of the present embodiment is configured to, the air on shell 17 and the periphery air blower 112a becomes temperature above freezing Time than become subzero temperature time it is long.

Moreover, in the refrigerator of the present embodiment, under the driving condition of compressor 100, compared to the outflux in triple valve 107a flows the time of refrigerant, keeps the time of the outflux 107b flowing refrigerant in triple valve longer.As a result, compared to evaporation Device 105a can make evaporator 105a temperature band above freezing is constant or temperature in the time that zubzero temperature band is constant or temperature reduces The time of rising is longer.Therefore, the temperature on shell 17 and the periphery air blower 112a becomes the time of temperature above freezing also than becoming zero The time of lower temperature is long.Therefore, the growth of the frost, ice of shell 17 and air blower 112a can be inhibited without heating.

Moreover, being configured in the present embodiment, the operating time ratio dwell time of air blower 112a is long.As a result, in shell In 17 and air blower 112a, by the forced convertion of air, shipwreck can be improved drainage to be stranded in a position.

In addition, in the refrigerator of the present embodiment, the end of the temperature judgement defrosting operating based on evaporator 105a, still, Can also by will defrost operate at continue for the predetermined time in the case where terminate in a manner of controlled based on the time, thus The defrosting operating time ratio of refrigerating chamber is set to refrigerate the duration of runs long.In addition, in the refrigerator of the present embodiment, as long as in evaluation cycle Property control in structural element mean temperature when there is characteristic as described above, even if feature part or in short time not With in the case where, same effect also can be obtained.

Figure 15 is the enlarged drawing of the refrigerating chamber of Fig. 3.Figure 15 is the figure of the refrigerator from back side.Therefore, the right in figure To the side door leaf 2a is indicated, the left direction in figure indicates the side door leaf 2b.

As shown in figure 15, air blower 112a is by having gyrate shell 17, so as to blow from air blower 112a Complete cycle out to stream efficiently upward direction is converged and is guided.Moreover, passing through the flowing perpendicular to air for making that wind path is discharged The size 32 in direction is gradually expanded along the flow direction of air, so as to increase the air quantity of refrigerating chamber 2 by diffuser effect.

In addition, the outer container 10a as upper surface of the refrigerating chamber 2 of the present embodiment is contacted with outside air, as refrigerating chamber 2 The heat-insulated partition wall 12a of lower surface contacted with freezing chamber, therefore become the structure that upper surface side is easiest to heating.Therefore, lead to It crosses in shell 17 and has outlet 19a, and be open upward, it being capable of the efficiency region for being easiest to heating cooling well.And And air blower 112a, when stopping, the Cryogenic air on the top of refrigerating chamber 2 flows downwards, therefore, can be efficiently in cooler bin Food.

In addition, in the present embodiment, air blower 112a is set as turbofan, therefore, even if frost is evaporator 105a's In the case that surface is grown up, also Cryogenic air can be supplied into refrigerating chamber 2 by biggish air quantity, being suitable for will be in refrigerating chamber 2 Samming.In addition, evaporator 105a be refrigerating chamber 2 use, temperature than freezing chamber 7 evaporator 105b high, therefore, Neng Gouxiang The air close to the state of refrigerating temperature zone is supplied in refrigerating chamber 2, has the advantages that be easy to carry out temperature adjustment as a result,.It is tied Fruit can make the mean temperature of the entirety of refrigerating chamber 2 lower than at present, remain 3 DEG C hereinafter, preferably 2 DEG C of left sides according to the present embodiment The right side, the effect that the freshness in refrigerating chamber 2 is kept improve.

As shown in figure 15, the discharge wind path 18a more against the top than shell 17 is to have the side towards the velocity component on right side Formula is formed as the directive property wind path of arc-shaped.In general, in the case where air blower 112a has gyrate shell 17, The peripheral side of shell 17 is easy contracting stream.Therefore, because wind is easy to flow in the left side of discharge wind path 18a, so, on being formed in When the linearly extended discharge wind path in side, discharge air leans on left side, it is difficult to the right side of cooling refrigerating chamber 2.Therefore, such as the present embodiment one Discharge wind path 18a is constituted to sample with the curved surface by entirety towards right side, thus make wind direction lateral deviation to the right, it can be by 2 temperature of refrigerating chamber Degree homogenization.According to the effect of these equalizing temperatures, refrigerator 1 therefore can be can be improved in short time cooling refrigerating chamber 2 Energy-efficient performance.

As shown in figure 15, has heat-barrier material 52 in the surrounding of discharge wind path 18a and shell 17, to prevent refrigerating chamber 2 Moisture condensation.In addition, 52 quilt cover 53 of heat-barrier material covering (side view is recorded in Fig. 2), cover 53 is substantially vertical guide.By having in this way Cover 53, along the vertical direction change shelf 14a, 14b, 14c setting position when, will not shelf and cover 53 between generate between Gap and fall food etc. from gap, become the good refrigerator of ease for use.In addition, in the present embodiment, in discharge wind path 18a and The surrounding of shell 17 has heat-barrier material 52, but in the case where locally reducing heat-barrier material and be made into hollow, also can Similarly prevent the moisture condensation of refrigerating chamber 2.

As shown in figure 15, it is configured to, the wind path of wind path 18a is discharged than refrigerating chamber 2 in the inside of air blower 112a and shell 17 It is narrow with evaporator room 16a, therefore wind speed is fast.Wherein, the especially periphery wind path of air blower 112a, due to carrying out flash-pot 105a Outflow air confluence, wind speed is maximum, and the cabinet 10 near air blower 112a is easy to happen hot intrusion.On the other hand, in cabinet 10 left and right has side heat dissipation piping 102, therefore, is configured to, the surface of the interior case 10b of left and right sides is easier than center side Heat intrusion occurs.

By the way that air blower 112a to be configured to the substantial middle of the left and right directions of refrigerating chamber 2, to be easy in cabinet The position of heat intrusion, reduces wind speed, therefore, can reduce the hot intrusion volume of refrigerating chamber 2.

In addition, in the present embodiment, have vacuum heat insulation material 11 in the back side of cabinet 10, and therefore, the back of cabinet 10 Peripheral side in surface side is easy to happen hot intrusion than center side.By the left and right directions that air blower 112a is configured to refrigerating chamber 2 Substantial middle, so as in cabinet 10 be easy to happen heat intrusion position reduce wind speed, therefore, can reduce cold Hide the hot intrusion volume of room 2.

Moreover, as shown in figure 15, being configured to, the center line 45 of the left and right directions of evaporator 105a passes through air blower 112a's Therefore a part, can be improved ice thus, it is possible to homogenize the unevenness of the wind speed profile of evaporator 105a to be limited in minimum limit The energy-efficient performance of case 1.

Figure 16 is the enlarged view of the main part for indicating Fig. 2 of the relationship of shelf and air supply path of the refrigerating chamber of the present embodiment. The present embodiment is optimized by will be provided with the relationship of the configuration of the wind path and shelf of turbofan, further expansion refrigerating chamber 2 Internal volume.As shown in figure 16, the refrigerator 1 of the present embodiment has wall part 40 between refrigerating chamber 2 and evaporator room 16a, and It is configured to, the upper surface of the upper surface 41 and shelf 14c that make wall part is approximate horizontal, and mutual height is substantially uniform.As a result, can Therefore enough upper surfaces 41 by wall part can increase internal volume as the extension of shelf 14c.

In the present embodiment, in order to improve space efficiency, the upper surface of the upper surface 41 and shelf 14c that make wall part is connect Touching, but can not also contact and be gap slightly.In addition, the substantially vertical of wall part 40 constitute.Make shelf as a result, In the case that 14c is moved downwards, between shelf 14c and wall part 40, gap is minimum, can become the food according to storage Therefore the structure of the mobile shelf 14c of product improves the ease for use of refrigerator 1.In the present embodiment, the whole region of wall part 40 is set For substantially vertical, still, even if only will against the top or the wall part 40 more against the top than soft freezing chamber 15 is set as big than shelf 14d Vertical structure is caused, identical effect can be also obtained.

[embodiment 2]

Next, being illustrated to the refrigerator of the embodiment of the present invention 2 using Figure 17.Compared to embodiment 1, embodiment 2 The construction of shell 17 is different.In addition, other structures are same as Example 1, the repetitive description thereof will be omitted.

Figure 17 indicates the cross-sectional view of the refrigerating chamber of embodiment 2.Figure 17 indicates sectional position identical with Figure 15.Such as Figure 17 institute Show, shell 17 has wind direction board 50, forms double volute construction.Specifically, from upstream side to downstream side, relative to air blower 112a is divided into compared with nearside and compared with distal side, forms the first wind path 62 and the second wind path 63.In general, having vortex in air blower 112a In the case where the shell 17 of shape, due to being easy in the peripheral side of shell 17 contracting stream, wind readily flows to a left side of discharge wind path 18a Side, discharge cold air are easy to produce biased.Therefore, by the way that shell 17 is divided into the first wind path 62 and second as the present embodiment Wind path 63, can be to about half of the blowout air quantity of about half blowout air blower 112a of the left and right directions of discharge wind path 18a.By This, the flowing being discharged in wind path 18a is homogenized, and discharge cold air is not likely to produce biased, can not generate excessively insufficient and efficiency Therefore cooling down refrigerating chamber 2 well can be improved the energy-efficient performance of refrigerator 1.

In addition, having the interconnecting part 64 being connected to the second wind path 63 in the lower end of the first wind path 62.As a result, from discharge wind path 18a, which flows through the dew come, will not be stranded in the first branch 62, but be expelled to the second wind path 63, and then can be from positioned at second The opening portion 21 of the lower end of wind path 63 is discharged, and therefore, is not susceptible to the problem because of caused by the delay of the water in shell 17.

[embodiment 3]

Next, being illustrated to the refrigerator of the embodiment of the present invention 3 using Figure 18.Compared to embodiment 1, embodiment 3 The configuration structure of the shelf of refrigerating chamber 2 is different.In addition, other structures are same as Example 1, the repetitive description thereof will be omitted.

Figure 18 is the figure for indicating the relationship of shelf and air supply path of the refrigerating chamber of embodiment 3.As shown in figure 19, the present embodiment Refrigerator 1 have wall part 40 between refrigerating chamber 2 and evaporator room 16a, the top of the upper surface 41 in next door portion is configured with Shelf 14c.Thereby, it is possible to which the top of the upper surface 41 of wall part is used as shelf, expand internal volume.Moreover, shelf 14c's Upper surface does not have scale, gap, therefore cleaning property is excellent.

Therefore, in the present embodiment, it is possible to it is similarly to Example 1 that the side against the top of upper surface 41 than wall part is flexible As shelf, therefore, it is capable of increasing the internal volume of refrigerating chamber 2.In addition, the height of shelf 14c cannot be made relative to embodiment 1 It reduces, but by eliminating scale, gap, can be improved the cleaning of refrigerator 1.

[embodiment 4]

Next, being illustrated to the refrigerator of the embodiment of the present invention 4 using Figure 19.Compared to embodiment 1, embodiment 4 The configuration structure of the shelf of refrigerating chamber 2 is different.In addition, other structures are identical, the repetitive description thereof will be omitted.

Figure 19 is the figure for indicating the relationship of shelf and air supply path of the refrigerating chamber of embodiment 4.As shown in figure 19, the present embodiment 1 Leng KURA room 2 of refrigerator and evaporator room 16a between have wall part 40, the upper surface of evaporator room 16a is by shelf 14c's Lower surface is constituted.Thereby, it is possible to which the upper surface side of evaporator room 16a is used as shelf 14c, expand the sequestration site of food.Moreover, Scale, gap is not present in the upper surface of shelf 14c, cleaning property is excellent, and the upper table of evaporator room 16a is constituted by cancelling The resin piece in face, can reduce fee of material.

Therefore, in the present embodiment, it is possible to it is similarly to Example 1 that the side against the top of upper surface 41 than wall part is flexible As shelf, therefore it is capable of increasing the internal volume of Leng KURA room 2.In addition, though cannot change shelf 14c's relative to embodiment 1 Height and position, but by eliminating scale, gap, can be improved the cleaning of refrigerator 1, further, can reduce fee of material.

It is the form of the present embodiment above.Additionally, this invention is not limited to above-mentioned forms, include various modifications example.For example, The above embodiments are the examples for for easy understanding illustrating the present invention and being described in detail, and are not limited to have Clear whole structures.In addition, a part of the structure for embodiment, is able to carry out the addition of other structures, deletes, sets It changes.

Claims (18)

1. a kind of refrigerator, has: the first storeroom of refrigerating temperature zone；Second storeroom of cryogenic temperature band；Cooling is above-mentioned First evaporator of the first storeroom；Second evaporator of cooling above-mentioned second storeroom；Conveying is in above-mentioned first evaporator quilt First air blower of air after cooling；And the second air blower of air of the conveying after above-mentioned second evaporator is cooled,

Above-mentioned refrigerator is characterized in that,

Above-mentioned first air blower is arranged in the turbofan of the position higher than above-mentioned first evaporator,

The size of the depth of above-mentioned first evaporator is identical with the depth of the air supply path of the part configured with above-mentioned turbofan.

2. refrigerator according to claim 1, which is characterized in that

Configure to above-mentioned turbofan substantially vertical,

Above-mentioned second air blower is arranged in the propeller fan of the position higher than above-mentioned second evaporator.

3. refrigerator according to claim 1 or 2, which is characterized in that

Has gyrate shell in above-mentioned turbofan, above-mentioned shell is approximately towards upper opening.

4. refrigerator described in any one of claim 1 to 3, which is characterized in that

Width positioned at the air supply path more against the top than above-mentioned gyrate shell is gradually expanded along the flow direction of air.

5. refrigerator according to any one of claims 1 to 4, which is characterized in that

Make to be located at the air supply path conduct more against the top than above-mentioned shell, there is axial velocity component with the flowing in the air supply path The directive property flow path that mode is directed toward.

6. refrigerator according to any one of claims 1 to 5, which is characterized in that

Has the wind direction board for dividing the above-mentioned intracorporal air supply path of shell in above-mentioned shell.

7. refrigerator described according to claim 1~any one of 6, which is characterized in that

Have multiple shelves in above-mentioned first storeroom,

First evaporator receiving room of one upper surface or lower surface and above-mentioned first evaporator of storage in above-mentioned shelf Upper space is located on roughly the same horizontal line.

8. refrigerator according to any one of claims 1 to 7, which is characterized in that

Have soft freezing chamber in the lower part of above-mentioned first storeroom,

Above-mentioned soft freezing chamber is configured with the wall part substantially vertical for the first evaporator room for being located at its back side.

9. refrigerator according to claim 8, which is characterized in that

Above-mentioned wall part is only substantially being configured to vertical than above-mentioned soft freezing chamber against the top.

10. a kind of refrigerator, has: the first storeroom of refrigerating temperature zone；Second storeroom of cryogenic temperature band；Cooling is above-mentioned First evaporator of the first storeroom；Second evaporator of cooling above-mentioned second storeroom；Conveying is in above-mentioned first evaporator quilt First air blower of air after cooling；And the second air blower of air of the conveying after above-mentioned second evaporator is cooled,

Above-mentioned refrigerator is characterized in that,

Above-mentioned first air blower is arranged in the turbofan of the position higher than above-mentioned first evaporator,

Above-mentioned second air blower is arranged in the propeller fan of the position higher than above-mentioned second evaporator,

Side end is located at than side end backrest surface side before above-mentioned first evaporator before above-mentioned first air blower.

11. a kind of refrigerator, has: the first storeroom of refrigerating temperature zone；Second storeroom of cryogenic temperature band；Cooling is above-mentioned First evaporator of the first storeroom；Second evaporator of cooling above-mentioned second storeroom；Conveying is in above-mentioned first evaporator quilt First air blower of air after cooling；And the second air blower of air of the conveying after above-mentioned second evaporator is cooled,

Above-mentioned refrigerator is characterized in that,

Above-mentioned first air blower is arranged in the centrifugal fan of the position higher than above-mentioned first evaporator,

The shell with outlet covers above-mentioned centrifugal fan by vortex type and above,

Opening portion is formed in the lower surface of above-mentioned shell.

12. refrigerator according to claim 11, which is characterized in that

The width of blade of above-mentioned centrifugal fan falls in the tongue from above-mentioned shell across above-mentioned centrifugal fan to the end of above-mentioned shell In the width in portion.

13. refrigerator according to claim 11 or 12, which is characterized in that

Above-mentioned opening portion is set to the lowest part of above-mentioned shell.

14. refrigerator described in any one of 1~13 according to claim 1, which is characterized in that

Has wind path resistance applying mechanism in the opening portion of above-mentioned shell.

15. refrigerator according to claim 14, which is characterized in that

Above-mentioned wind path resistance applying mechanism refers to tropism wind path.

16. refrigerator described in any one of 1~15 according to claim 1, which is characterized in that

From above-mentioned opening portion to above-mentioned first evaporator connection flow path minimum widith and above-mentioned centrifugal fan it is interlobate Minimum widith is bigger than the fin interval of above-mentioned first evaporator.

17. refrigerator described in any one of 1~16 according to claim 1, which is characterized in that

Above-mentioned shell has intracorporal first wind path of above-mentioned shell and the second wind path,

The lower end of above-mentioned first wind path has the interconnecting part being connected to above-mentioned second wind path.

18. refrigerator described in any one of 1~17 according to claim 1, which is characterized in that

The refrigeration duration of runs of above-mentioned first storeroom of the defrosting operating time ratio of above-mentioned first storeroom is long.