CN108286854A

CN108286854A - Refrigerator

Info

Publication number: CN108286854A
Application number: CN201710976846.2A
Authority: CN
Inventors: 中津哲史
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2017-01-10
Filing date: 2017-10-19
Publication date: 2018-07-17
Anticipated expiration: 2037-10-19
Also published as: CN108286854B; HK1256702A1; AU2017392447A1; JPWO2018131076A1; JP6752297B2; WO2018131076A1; MY201770A; TW201825844A; TWI716636B; CN207515331U; AU2017392447B2

Abstract

The refrigerator of the present invention has：Heat insulating box has interior case, outer container and the heat-barrier material being set between interior case and outer container；Machine Room keeps the lower backside of heat insulating box concave inwardly and is formed, and is configured for compressor；Cooler room is formed in heat insulating box above Machine Room, for cooler configuration；Water-accepting part is set to the lower section of cooler in cooler room, receives the water of cooler；Drainage path is provided with entrance in water-accepting part, and the thermal wall being folded between cooler room and Machine Room is penetrated through in a manner of being connected to cooler room with Machine Room, and outlet is protruded towards Machine Room；And path heater, it is set to the entrance side of drainage path, the section shape of entrance is elliptical shape or oblong shape, the entrance side of drainage path has as before downstream and then sectional area becomes smaller and the center of section is supported or opposed the shape of surface side approach, drainage path is integrally formed from the inlet to the outlet.Thereby, it is possible to obtain the refrigerator of get both performance and quality.

Description

Refrigerator

Technical field

The present invention relates to the refrigerators for having drainage path.

Background technology

In previous refrigerator, some is provided with water-accepting part (drain pan) below cooler, and under drain pan It is provided with the drainage path of perforation thermal wall (referring for example to patent document 1 and patent document 2).In patent document 1, open There is the drainage path for being set to the lower section on plumb line relative to cooler, in addition in patent document 2, discloses from being set to The ceiling of Machine Room below cooler room protrudes the structure of drainage path outlet.Wanting to ensure to drain road with the shortest distance In the case of diameter, it is applicable in structure as above patent document.

However, refrigerator requires to save space and large capacity, and require energy saving.Thus, for example there is also to thermal wall A part uses the refrigerator of the excellent vacuum heat insulation material of thermal insulation.

Patent document 1：Japanese Unexamined Patent Publication 2003-56972 bulletins

Patent document 2：Japanese Unexamined Patent Publication 2003-83668 bulletins

For the refrigerator of patent document 2, especially because overleaf lower part is provided with Machine Room, and in Machine Room Surface is configured with cooler room, so in the thermal wall being separated to the maximum space of temperature difference, exists because draining road Diameter and so that heat-proof quality is significantly deteriorated, cooling capacity reduce the case where.In view of this, it is contemplated that a part for heat-barrier material The scheme of heat-proof quality is ensured using above-mentioned vacuum heat insulation material, but in this case, from the drainage path folded that drips, It is substantially bent because avoiding vacuum heat insulation material.Therefore, drainage path is needed in the foaming being filled in around vacuum heat insulation material Interconnecting piece is arranged in the inside of heat-barrier material.In addition, for example patent document 1 is such, even if ensuring drainage path with the shortest distance Structure in, there is also the reasons for molding easiness etc., and the case where drainage path is connected by multiple components and is constituted. The structure of interconnecting piece is set in the midway of drainage path like this, in the connection when used for a long time, being attached to inside drainage path The thawing water in portion is gradually impregnated with due to capillarity into foamed heat-insulating material.Then, foamed heat-insulating material is with the time Passage internally keeps the solvent swelling state variation of moisture.Moisture inside heat-barrier material spontaneous will not evaporate, the result is that after swelling Foamed heat-insulating material cause thermal capacity to become larger because of moisture.Therefore, the foamed heat-insulating material after swelling becomes and cryogenic temperature Same temperature makes the moisture for the interconnecting piece for being attached to drainage path freeze, and the ice cube after icing becomes core and is grown into, and Drainage path is set to occlude.As a result, not being discharged to Machine Room instead of in the presence of the thawing water generated by defrosting action, to ice Discharge in case, and generate the case where water leaks in refrigerator.

In this way, be provided in the drainage path of interconnecting piece in heat-barrier material, thawing water that when defrosting generates is from interconnecting piece It is impregnated with into heat-barrier material, to generate the icing in drainage path.In addition, in the drain pan of cooler lower part and the back of the body of refrigerator Between the Machine Room of face lower part there are drainage path in the case of, vacuum heat insulation material can not be arranged inside heat-barrier material, The boundary between the cooler room being thermally shielded and Machine Room is needed most, heat-proof quality reduces.As a result, the energy saving of refrigerator is disliked Change or generate the moisture condensation etc. of Machine Room top surface.

Invention content

The present invention completes to solve project as described above, gets both performance and product its purpose is to provide one kind The refrigerator of matter.

Refrigerator according to the present invention has：Heat insulating box, with interior case, outer container and setting above-mentioned interior case with The heat-barrier material in the space between above-mentioned outer container；Machine Room keeps the lower backside of above-mentioned heat insulating box concave inwardly and shape At for compressor configuration；Cooler room is formed in above above-mentioned Machine Room in above-mentioned heat insulating box, for generating cold air Cooler configuration；Water-accepting part, the water-accepting part are set to the lower section of above-mentioned cooler in above-mentioned cooler room, receive from upper State the water of cooler；Drainage path, the drainage path are provided with entrance in above-mentioned water-accepting part, by above-mentioned cooler room with it is above-mentioned The mode of Machine Room connection, perforation is folded in the thermal wall between above-mentioned cooler room and above-mentioned Machine Room, and exports direction Above-mentioned Machine Room protrudes；And path heater, it is set to the above-mentioned entrance side of above-mentioned drainage path, above-mentioned drainage path The section shape of above-mentioned entrance is elliptical shape or oblong shape, and the above-mentioned entrance side of above-mentioned drainage path has with downward Trip side before so that sectional area become smaller and the center of section support or oppose surface side approach shape, above-mentioned drainage path from it is above-mentioned enter Mouth is integrally formed to above-mentioned outlet.

Preferably, above-mentioned drainage path have in plan view overleaf a part for side or back side along Vertical Square To the wall surface of extension.

Preferably, for the inclination angle of the above-mentioned outlet of above-mentioned drainage path, relative to bowing for depth horizontal direction Angle is 7 ° or more.

Preferably, above-mentioned drainage path is integrally formed with above-mentioned water-accepting part.

Preferably, it is also equipped with the defrosting unit for melting the frost of above-mentioned cooler by heater or high temperature refrigerant.

Preferably, it is also equipped with the water receiving ware for the lower section that above-mentioned outlet is set in above-mentioned Machine Room,

Above-mentioned water receiving ware is piped in inside configured with heating.

Preferably, it is also equipped with the 1st storeroom being formed in above-mentioned heat insulating box,

Above-mentioned water-accepting part and above-mentioned drainage path are prolonged by making the bottom plate of above-mentioned 1st storeroom state cooler room upwardly It stretches and is formed, and be configured at the position lower than above-mentioned base surface.

Preferably, it is also equipped with the front of the lower section and above-mentioned Machine Room that are formed in above-mentioned 1st storeroom, and is set to compare 2nd storeroom of the low temperature of above-mentioned 1st storeroom,

Above-mentioned thermal wall is the wall of the above-mentioned Machine Room of formation of the bottom wall and above-mentioned heat insulating box of above-mentioned 1st storeroom Portion.

Refrigerator according to the present invention, drainage path tends to outlet from entrance and internal diameter reduces and center is to refrigerator Back side approaches, therefore in the thermal wall between cooler room and Machine Room, can be by the region than drainage path on the front It is ensured to be wider, can vacuum heat insulation material be set in the region ensured.Therefore, refrigerator can increase vacuum heat insulation material Setting area and improve heat-proof quality.In addition, drainage path is integrally formed from the inlet to the outlet, therefore inhibit from drainage path court It is impregnated with to the moisture of heat-barrier material, the probability for the occlusion for generating discharge path can be reduced.In this way, refrigerator can either maintain every It is hot, and drainage can be made to improve.

Description of the drawings

Fig. 1 is the stereoscopic figure for indicating the refrigerator involved by embodiments of the present invention 1.

Fig. 2 is to indicate the refrigerant circuit of the refrigerator involved by embodiments of the present invention 1 and showing for air circulation path It is intended to.

Fig. 3 is the side sectional view for indicating the refrigerator involved by embodiments of the present invention 1.

Fig. 4 is the schematic structural diagram of the Machine Room at the back side of the refrigerator involved by embodiments of the present invention 1.

Fig. 5 is the partial sectional view for the structure for indicating the heat insulating box involved by embodiments of the present invention 1.

Fig. 6 is the partial cutaway for indicating the fixed state of the component of the heat insulating box involved by embodiments of the present invention 1 View.

Fig. 7 is the 1st partial sectional view of the structure for indicating the heat insulating box involved by embodiments of the present invention 1.

Fig. 8 is the 2nd partial sectional view of the structure for indicating the heat insulating box involved by embodiments of the present invention 1.

Fig. 9 is the 3rd local specification figure for the structure for indicating the heat insulating box involved by embodiments of the present invention 1.

Figure 10 is the definition graph for the lower periphery for indicating the refrigerator involved by embodiments of the present invention 1, and (a) of Figure 10 is Front section view when indicating to remove at door, (b) of Figure 10 is side sectional view.

Figure 11 is the side sectional view for the structure for indicating the vegetable compartment periphery involved by embodiments of the present invention 1.

Figure 12 is the front cross-sectional for the back face wall for indicating the vegetables indoor observation involved by the embodiments of the present invention 1 Figure.

Figure 13 is to indicate the refrigerating chamber discharge wind path of the refrigerator involved by embodiments of the present invention 1 and returning for refrigerating chamber 2 The definition graph on return air road, (a) of Figure 13 are the partial front elevation views of refrigerator when removing door, and (b) of Figure 13 is the row of refrigerating chamber Go out the side sectional view of the refrigerator at wind path, (c) of Figure 13 is the local side section view for returning to the refrigerator at wind path of refrigerating chamber Figure.

Figure 14 A are the front views of the setting example for the wind path heater for indicating the refrigerator involved by embodiments of the present invention 1.

Figure 14 B are the masters of another setting example for the wind path heater for indicating the refrigerator involved by embodiments of the present invention 1 View.

Figure 15 is to indicate that the ice-making compartment discharge wind path of the refrigerator involved by embodiments of the present invention 1 and ice-making compartment return The definition graph of wind path, (a) of Figure 15 are the partial front elevation views of refrigerator when removing door, and (b) of Figure 15 is that ice making is indoor vertical Body figure.

Figure 16 is to indicate that the switching chamber discharge wind path of the refrigerator involved by embodiments of the present invention 1 and switching chamber return The definition graph of wind path, (a) of Figure 16 are the partial front elevation views of refrigerator when removing door, and (b) of Figure 16 is the partial side of refrigerator Face sectional view.

Figure 17 is the freezing chamber discharge wind path and freezing chamber 6 for indicating the refrigerator involved by embodiments of the present invention 1 The definition graph of wind path is returned to, (a) of Figure 17 is the partial front elevation view of refrigerator when removing door, and (b) of Figure 17 is the office of refrigerator Portion's side sectional view.

Figure 18 is to indicate that the 1st outline of the structure of the storage spacer involved by embodiments of the present invention 1 cuts open View.

Figure 19 is to indicate that the 2nd outline of the structure of the storage spacer involved by embodiments of the present invention 1 cuts open View.

Figure 20 is the 1st side of the wall structure for indicating the vegetable compartment periphery involved by embodiments of the present invention 1 Sectional view.

Figure 21 is the 2nd side of the wall structure for indicating the vegetable compartment periphery involved by embodiments of the present invention 1 Sectional view.

Figure 22 is the 3rd side of the wall structure for indicating the vegetable compartment periphery involved by embodiments of the present invention 1 Sectional view.

Figure 23 A be the 1st of the back face wall for indicating the vegetables indoor observation involved by the embodiments of the present invention 1 just Face sectional view.

Figure 23 B be the 2nd of the back face wall for indicating the vegetables indoor observation involved by the embodiments of the present invention 1 just Face sectional view.

Figure 24 is the schematic diagram of the configuration for the muff heater for indicating the vegetable compartment involved by embodiments of the present invention 1.

Figure 25 is the schematic diagram of the configuration for the heat-dissipating pipe for indicating the vegetable compartment involved by embodiments of the present invention 1.

Figure 26 is that the connection of the heat-dissipating pipe and refrigerant circuit that indicate the vegetable compartment involved by embodiments of the present invention 1 is closed The schematic diagram of system.

Figure 27 be in the flow path switching three-way valve indicated involved by embodiments of the present invention 1 not with towards vegetable compartment The figure of the discharge characteristic of the outlet side of heat-dissipating pipe connection.

Figure 28 is the schematic structural diagram of the flow path switching three-way valve involved by embodiments of the present invention 1.

Figure 29 is in the flow path switching three-way valve indicated involved by embodiments of the present invention 1 relative to rotation gear The flow path of step pitch (STEP) forms the definition graph of state, and (a) of Figure 29 is the figure for the 0 step pitch state for indicating rotation gear, Figure 29 (b) be figure the case where indicating to become closed channel under the 4 step pitch states for rotating gear, (c) of Figure 29 is to indicate rotating (d) of the figure for the case where becoming throttle-flow A under 36 step pitch states of gear, Figure 29 is the 73 step pitch shapes indicated in rotation gear The figure for the case where becoming throttle-flow B under state, (e) of Figure 29 are to indicate to become throttling under 110 step pitch states of rotation gear The figure of the case where flow C, (f) of Figure 29 are the figure for indicating to become under the 177 step pitch states for rotating gear the case where opening flow path, (g) of Figure 29 is figure the case where indicating to become unit process under the 200 step pitch states for rotating gear.

Figure 30 is the office of the part for indicating the cooler room involved by embodiments of the present invention 1 and the structure of Machine Room The figure of portion's side sectional view.

Figure 31 A are the 1st approximate vertical views of the structure for indicating the drain pan involved by embodiments of the present invention 1.

Figure 31 B are the 2nd approximate vertical views of the structure for indicating the drain pan involved by embodiments of the present invention 1.

Figure 32 is the rearview of the structure for the inside for indicating the Machine Room involved by embodiments of the present invention 1.

Figure 33 is the another of the back face wall for the vegetables indoor observation for indicating the refrigerator involved by the embodiments of the present invention 1 The front view of configuration example.

Figure 34 is the structure of the part and Machine Room to indicating the cooler room involved by embodiments of the present invention 2 The figure that fragmentary side cross-sectional view is indicated.

The explanation of reference numeral

1... refrigerator；2... refrigerating chamber；3... ice-making compartment；4... temperature switching chamber；5... vegetable compartment；6... freezing chamber； 7... refrigerant circuit；8... compressor；9... air-cooled condenser；10... heat-dissipating pipe；11... moisture condensation prevents pipe；12... it dries Dry machine；13... decompressor；14... cooler；The lower ends 14a...；15... pressure fan；16(16a、16b、16c、16d)... Temperature sensor；17... control base board；18 (18a, 18b, 18c) ... quantity regulating device for air；19... heat insulating box；19a... Wall portion；21... outer container；22... interior case；23... heat-barrier material；23a... polyurethane foam materials；23b... vacuum insulation materials Material；25a... frames construct；25b... rail configurations；25c... support elements；26... spacer；27... cooler room；28... Wind path；Wind path is discharged in 29a, 29b, 29c, 29d, 29e...；30a, 30b, 30c, 30e... return to wind path；31... back face wall； 32... ceiling wall；33a, 33b... wind path heater；34... wall portion；The upper surfaces 34a...；The lower surfaces 34b...；34c... every Hot material；35... bottom wall；35a... polyurethane foam materials；35b... vacuum heat insulation materials；36... air circulation path； 38... thermal wall gabarit；39... vacuum heat insulation material；40... foamed heat-insulating material；42... thermal wall gabarit；44... it is discharged Mouthful；45... return port；46... muff heater；47... heat-dissipating pipe；48... flow path switching three-way valve；49,50... is exported Pipe；51a, 51b... capillary；53... valve body；54... magnetized rotor；55... central gear；56... gear is rotated； 57... rotating pad；58... valve seat；59... gabarit shell；60... bottom plate；61... aperture；62... aperture；63... aperture； 64... exit aperture；67... defrost unit；70... outlet；71... mechanism for ice maker；72... return port；74... cold air returns It answers back；75... return port is refrigerated；76... wind path is returned；77... hole；78... sliding part；80... drain pan；81... water receiving Portion；82,182... drainage paths；82a, 182a... upstream portion；82b, 182b... downstream portion；83,183... entrances；84、 184... outlet；85... path heater；89... metal tray；90... Machine Room；91... drain pan；92... heating is used Piping；95... mechanic chamber fan；99... thermal wall；Oa, Ob... section center；θ ... angles.

Specific implementation mode

Embodiment 1.

The structure of refrigerator 1 is illustrated based on Fig. 1~Fig. 4.Fig. 1 is indicated involved by embodiments of the present invention 1 The stereoscopic figure of refrigerator.Fig. 2 is the refrigerant circuit and air circulation for indicating the refrigerator involved by embodiments of the present invention 1 The schematic diagram in path.Fig. 3 is the side sectional view for indicating the refrigerator involved by embodiments of the present invention 1.Fig. 4 is of the invention The schematic structural diagram of the Machine Room at the back side of the refrigerator involved by embodiment 1.

As shown in Figure 1 and Figure 3, refrigerator 1 has the heat insulating box 19 for being configured to lengthwise cubic shaped, in heat insulating box Multiple storerooms are formed in 19.Refrigerator 1 is from top to bottom according to the temperature on 3 right side of refrigerating chamber 2, the ice-making compartment 3 in left side and ice-making compartment Degree switching chamber 4, vegetable compartment 5, being arranged in order for freezing chamber 6 have storeroom, and spacer is respectively arranged between each storeroom.

Heat insulating box 19 is by upper surface part, bottom surface sections, right side face, left side face, back part and is respectively arranged at each The door of the face side of storeroom is constituted.In addition, as shown in figure 3, be formed with cooler room 27 in heat insulating box 19, cooler room 27 positioned at ice-making compartment 3, the back side of temperature switching chamber 4 and vegetable compartment 5.In addition, overleaf lower part has Machine Room 90 to refrigerator 1, The Machine Room 90 is to keep a part of wall portion 19a of heat insulating box 19 internally concave and formed in the outside of heat insulating box 19. Machine Room 90 is located at the back side of freezing chamber 6, and the back side in Machine Room 90 is provided with Machine Room cover (not shown).

As shown in Fig. 2, refrigerator 1 has for the refrigerant circuit 7 of refrigerant circulation and for the air circulation of air circulation Path 36, by making refrigerant will cooling in refrigerator 1 with air progress heat exchange.In fig. 2, the arrow expression of solid line is being made The arrow of the flow direction of the refrigerant flowed in refrigerant circuit 7, dotted line indicates the cold air flowed in air circulation path Flow direction.

In fig. 4 it is shown that by Machine Room cover remove and observe from the rear when Machine Room 90 inside.Such as Fig. 2 and Shown in Fig. 4, refrigerant circuit 7 is by making compressor 8, air-cooled condenser 9, heat-dissipating pipe 10, moisture condensation prevent pipe 11, dryer 12, decompressor 13, cooler 14 etc. are constituted by piping connection.Compressor 8 is to be compressed to refrigerant and make it The equipment recycled in refrigerant circuit 7, is set to Machine Room 90.Machine Room 90 is provided with mechanic chamber fan 95, the machine Tool room fan 95 takes in extraneous air in Machine Room 90, makes the air circulation in Machine Room 90 and waits progress cold on compressor 8 But.Air-cooled condenser 9 is arranged in Machine Room 90, and the heat of refrigerant is released towards the air blown by mechanic chamber fan 95 Air cooling heat exchanger.Heat-dissipating pipe 10 is disposed on the piping inside the polyurethane of 1 main body of refrigerator, makes the heat of refrigerant Air Spontaneous release to outside refrigerator 1.Moisture condensation prevents pipe 11 to be dispersed throughout around each storeroom of 1 front surface of refrigerator, and before preventing The moisture condensation on surface.In this way, air-cooled condenser 9, heat-dissipating pipe 10 and moisture condensation, which prevent pipe 11 to have in refrigerant circuit 7, makes refrigeration The function of agent condensation.In addition, the moisture in refrigerant is removed and prevents from freezing caused by moisture by dryer 12.Decompressor 13 such as being configured to capillary, is depressurized to refrigerant.Cooler 14 is configured at cooler room 27, in cooler room 27 are also configured with the pressure fan 15 for making the air circulation in refrigerator 1.Cooler 14 is to make to be absorbed by the air that pressure fan 15 is blown The heat exchanger of the heat of refrigerant.That is, cooler 14 has the function of that refrigerant is made to evaporate.

In addition, refrigerator 1 have wind path for importing from 27 cold air after cooling of cooled device room to each storeroom and Be set to quantity regulating device for air 18a, 18b, 18c that the amount of wind path and the cold air of opposite each storeroom flowing is adjusted (hereinafter, Sometime collectively referred to as quantity regulating device for air 18) etc..Quantity regulating device for air 18 is constituted such as the air door that can be changed by aperture.In addition, such as Shown in Fig. 3, refrigerator 1 has control base board 17 and multiple temperature sensors etc..Temperature sensor 16a, 16b, 16c, 16d (with Under, sometime collectively referred to as temperature sensor 16) such as being constituted by thermistor, they are respectively arranged at each storeroom, and to institute The indoor air themperature of storage of setting or the temperature for storing food are detected.In figure 3, temperature sensor 16a is arranged In refrigerating chamber 2, temperature sensor 16b is set to temperature switching chamber 4, and temperature sensor 16c is set to vegetable compartment 5, and temperature Sensor 16d is set to freezing chamber 6.Control base board 17 is built in the upper rear portion of refrigerator 1.Control base board 17 for example has miniature Computer and electronic unit etc., and carry out the various controls of refrigerator 1.For example, control base board 17 is according to from temperature sensor 16 The temperature information of input, aperture, the driving frequency of compressor 8 and the air-supply of the quantity regulating device for air 18 to being set to wind path The air output etc. of machine 15 is controlled.

In refrigerant circuit 7, from compressor 8 be discharged refrigerant pass sequentially through air-cooled condenser 9, heat-dissipating pipe 10, with And moisture condensation prevents pipe 11, and by during radiated by condense.Prevent the refrigerant that pipe 11 flows out to drying from moisture condensation Machine 12 flows into and is removed moisture, and is flowed into decompressor 13.The refrigerant for flowing into decompressor 13 is depressurized and to cold But device 14 flows into.In cooler 14, refrigerant absorbs heat and evaporates from the air recycled by pressure fan 15 and in refrigerator 1. At this point, the air on 14 periphery of cooler is cooled.The refrigerant evaporated in cooler 14 by by cooler 14 with compression When the suction line that machine 8 connects, carries out heat exchange and temperature rise with the refrigerant that is flowed in decompressor 13, be then back to pressure Contracting machine 8.

On the other hand, heat exchange is carried out with the refrigerant flowed in cooler room 27 for the air in refrigerator 1 to be given birth to At cold air for, by pressure fan 15, blown to each storeroom by wind path, to being cooled down to each storeroom. The temperature of each storeroom is detected by the temperature sensor 16 for being set to each storeroom, and control base board 17 is so that the temperature detected Degree makes the actions such as quantity regulating device for air 18 as the mode of predetermined temperature, to remain temperature appropriate.To each storage The cold air that Tibetan room is cooled down again returns to cooler room 27 by pressure fan 15 by wind path.

As shown in figure 3, it is preferred that the position of cooler 14 is set as lower end 14a positioned at than vegetable compartment 5 in cooler room 27 Base surface the positions on the lower position F.In this case of composition, the sky of bigger is ensured on the top of cooler 14 Between, therefore the degree of freedom of the size to the pressure fan 15 of each storeroom submitting cold air increases, and additionally ensures that for configuring air quantity tune The space of engagement positions 18.

Next, being illustrated to the structure of the heat insulating box 19 of refrigerator 1 based on Fig. 5~Fig. 9.Fig. 5 is to indicate the present invention Embodiment 1 involved by heat insulating box structure partial sectional view.Fig. 6 is indicated involved by embodiments of the present invention 1 And heat insulating box the fixed state of component partial sectional view.Fig. 7 is indicated involved by embodiments of the present invention 1 1st partial sectional view of the structure of heat insulating box.Fig. 8 is the heat insulating box indicated involved by embodiments of the present invention 1 Structure the 2nd partial sectional view.Fig. 9 is the structure for indicating the heat insulating box involved by embodiments of the present invention 1 3rd local specification's figure.

As shown in figure 5, heat insulating box 19 by constitute gabarit outer container 21 and interior case 22 and configuration in outer container 21 and interior case The equal composition of heat-barrier material 23 between 22, and inhibit from external heat intrusion.Interior case 22 is the one of the gabarit of heat insulating box 19 Part, and constitute the inner wall of each storeroom.For heat-barrier material 23, such as use polyurethane foam material 23a etc..

In addition, as shown in fig. 6, setting have frame construct 25a pull-out type door of storage room in the case of, in hot box The rail configurations 25b of frame construction 25a is born in 22 side of interior case of body 19, setting.Set by the support element 25c of rail configurations 25b The position set, heat insulating box 19 have shape corresponding with the shape of support element 25c, support element 25c by the interior case 22 of surrounding with And polyurethane foam material 23a is fixed.At other positions of heat insulating box 19, the strengthening portion that the deformation of refrigerator 1 is corrected Component is set in part, the component of above-mentioned refrigerant circuit 7 and electric wiring component etc. are various by polyurethane foam material 23a to be consolidated It is fixed.

As shown in fig. 7, the heat-barrier material 23 of heat insulating box 19 can also be by polyurethane foam material 23a and vacuum insulation material Expect that 23b is constituted.In this case, in the part configuration vacuum heat insulation material in the space being formed between outer container 21 and interior case 22 23b, in remaining space filled polyurethane expanded material 23a.In the figure 7, vacuum heat insulation material 23b is attached at the wall of outer container 21 Face.In this way, vacuum heat insulation material 23b is used by the part in heat-barrier material 23, to which heat insulating box 19 can be further It reduces towards the hot intrusion volume in refrigerator 1.

In addition, as shown in figure 8, vacuum heat insulation material 23b can also be configured to, with the position being arranged inside heat insulating box 19 It sets accordingly, the centre position of the wall surface of outer container 21 and the wall surface of interior case 22 is configured at by spacer 26.Alternatively, such as Fig. 9 Shown, vacuum heat insulation material 23b can also be attached at the wall surface of interior case 22.In Fig. 9 structure, preferred vacuum heat insulation material 23b be set as not with it is above-mentioned in set component generate interference.In addition, in heat insulating box 19 set by vacuum heat insulation material 23b Position and range are not limited to above-mentioned structure, as long as being configured to the casing rigidity of guarantee refrigerator 1.Refrigerator 1 By carrying vacuum heat insulation material 23b, so as to reduce the distance between outer container 21 and interior case 22 (insulating thickness), in increase Volume.

Next, being illustrated to the wind path being formed in refrigerator 1.Wind path with cooler room 27 and a part by storing The return wind path that the wind path of room wind path connection, discharge wind path, the cold air that cold air is discharged towards each storeroom are returned from each storeroom Deng composition.

Figure 10 is the definition graph for the lower periphery for indicating the refrigerator involved by embodiments of the present invention 1.(a) of Figure 10 be (b) of front section view when door is removed, Figure 10 is side sectional view.As shown in Figure 10, it is formed on the right side of cooler 14 There is the return wind path 30a from refrigerating chamber 2, is returning to the return wind path being formed in front of wind path 30a from temperature switching chamber 4 30c and discharge wind path 29d towards vegetable compartment 5.In cooler 14, returns to wind path 30c and the front of wind path 29d is discharged, It is formed with the back face wall 31 for the spacer that composition is separated with the space in vegetable compartment 5.

Figure 11 is the side sectional view for the structure for indicating the vegetable compartment periphery involved by embodiments of the present invention 1.In vegetable The back side of dish room 5 is formed with the back face wall 31 for separating vegetable compartment 5 and cooler room 27.Back face wall 31 is thermal wall, by vegetable The thermal wall gabarit 42 of 27 side of thermal wall gabarit 38 and cooler room of 5 side of dish room, is configured at vacuum at vacuum heat insulation material 39 The equal composition of foamed heat-insulating material 40 around heat-barrier material 39.The overleaf foamed heat-insulating material 40 of wall 31, is provided with to freezing The storerooms such as room 6 and refrigerating chamber 2 send out the wind path 28 of cold air.The front and back configuration of wind path 28 is since rear according to cooler 14, thermal wall gabarit 42,5 side of the foamed heat-insulating material 40 for being formed with wind path 28, vacuum heat insulation material 39 and vegetable compartment every The sequence of hot wall gabarit 38 carries out.Foamed heat-insulating material 40 with wind path structure, which is also equipped with, protects quantity regulating device for air 18 The function of holding.

The ceiling wall 32 of vegetable compartment 5 becomes the spacer between vegetable compartment 5 and ice-making compartment 3 and temperature switching chamber 4, vegetable compartment 5 bottom wall 35 becomes the spacer between vegetable compartment 5 and freezing chamber 6.Ceiling wall 32 and bottom wall 35 are made of thermal wall, and are pressed down Heat between the different storeroom of set temperature processed is mobile.For ceiling wall 32 and bottom wall 35, such as by being injected into proximate matter Material constitutes gabarit, and inside is made of polyurethane foam material 35a and vacuum heat insulation material 35b.By ensuring that polyurethane is sent out The viscosity of foam material 35a, flow path width to which vacuum heat insulation material 35b to be disposed in the centre of spacer gabarit wall surface, and are borrowed Help polyurethane foam material 35a by whole package, thus, it is possible to realize further degradation inhibiting.As shown in figure 11, in vacuum In the case that heat-barrier material 35b is configured at the storeroom side of low temperature, the easy indoor temperature of storage for maintaining to be set to low temperature. In fig. 11, vacuum heat insulation material 35b is configured at 4 side of ice-making compartment 3 and temperature switching chamber in ceiling wall 32, in bottom wall 35 It is configured at 6 side of freezing chamber.

Figure 12 is the front cross-sectional for the back side wall portion for indicating the vegetables indoor observation involved by the embodiments of the present invention 1 Figure.As shown in figure 12, the outlet 44 for cold air towards discharge in vegetable compartment 5 is formed in the inner wall of the back face wall 31 of vegetable compartment 5 On right upper portion.The outlet 44 of cold air is located at than being set on the front-rear direction of vacuum heat insulation material 39 of back face wall 31 The position of perspective plane in the outer part.In addition, for cold air relative to outlet from the return port 45 that vegetable compartment 5 returns overleaf wall 31 44 are formed in the left lower on diagonal.Return port 45 is located at more outer than the perspective plane on the front-rear direction of vacuum heat insulation material 39 The position of side.Outlet 44 passes through the cold air generated by cooler 14 by the pressure fan 15 for the top for being disposed in cooler 14 Quantity regulating device for air 18 (such as quantity regulating device for air 18c) by being set to the top of cooler room 27 is supplied.From discharge After the cold air that mouth 44 is expelled in vegetable compartment 5 cool down in vegetable compartment 5, it is discharged from the return port 45 of cold air, and drawn To cooler room 27, to which the device 14 that is cooled again cools down.

Figure 13 is to indicate the refrigerating chamber discharge wind path of the refrigerator involved by embodiments of the present invention 1 and returning for refrigerating chamber 2 The definition graph on return air road.(a) of Figure 13 is the partial front elevation view of the refrigerator 1 when removing door, and (b) of Figure 13 is the row of refrigerating chamber Go out the side sectional view of the refrigerator 1 at wind path 29a, (c) of Figure 13 is the part for returning to the refrigerator 1 at wind path 30a of refrigerating chamber 2 Side sectional view.

As shown in figure 13, multiple wind paths are connected and are constituted by the discharge wind path 29a of refrigerating chamber 2, wherein above-mentioned multiple wind paths Pass through after the discharge of the pressure fan 15 for the top for being set to cooler 14 for cold air.Multiple wind paths are, for example, in back face wall 31 Wind path 28, the top of cooler room 27 foamed heat-insulating material in towards the wind path of refrigerating chamber 2, by refrigerating chamber 2 and ice-making compartment 3 And temperature switching chamber 4 separate thermal wall in wind path and by be set to refrigerating chamber 2 back side foamed heat-insulating material at The wind path etc. of type.In addition, being for example set to the quantity regulating device for air 18a being adjusted towards the cold air supply of refrigerating chamber 2 The midway of the discharge wind path 29a of refrigerating chamber 2.In addition, the return wind path 30a of refrigerating chamber 2 is at the position than cooler 14 on the right side It is arranged to heat-insulated needed for obtaining using foamed heat-insulating material.The outlet for returning to wind path 30a of refrigerating chamber 2 is in cooler room It is connect from the lower right of cooler 14 with the drain pan 80 for receiving thawing water when defrosting in 27.

In the case of heat-insulated needed for not ensuring in the return wind path 30a of above-mentioned refrigerating chamber 2, preferably wind path 30a is being returned to It is arranged for avoiding the wind path heater that wind path occludes caused by frost.Figure 14 A are indicated involved by embodiments of the present invention 1 And refrigerator wind path heater setting example front view.Figure 14 B are the refrigerators indicated involved by embodiments of the present invention 1 Wind path heater another setting example front view.In Figure 14 A and Figure 14 B, refrigerator when removing door is shown Lower periphery.

In Figure 14 A, wind path heater 33a is arranged in the return wind path 30a of refrigerating chamber 2, and is sent out if necessary Heat.It is preferred that wind path heater 33a return wind path 30a in any position along wind path length direction be arranged, such as be set to by Cooler 14 projects the range of the size of gained or more along the vertical direction.In addition, in fig. 14b, wind path heater 33b is set to Near drain pan 80.During the joint portion that wind path heater 33b is for example preferably arranged to return wind path 30a and drain pan 80 is The heart, along the flow direction for returning to cold air in the range of upper and lower 100mm or so.

Figure 15 is to indicate that the ice-making compartment discharge wind path of the refrigerator involved by embodiments of the present invention 1 and ice-making compartment return The definition graph of wind path.(a) of Figure 15 is the partial front elevation view of the refrigerator 1 when removing door, and (b) of Figure 15 is in ice-making compartment 3 Stereogram.

As shown in figure 15, the discharge wind path 29b of ice-making compartment 3 is constituted by connecting multiple wind paths, wherein above-mentioned multiple Wind path passes through for cold air after the discharge of the pressure fan 15 for the top for being set to cooler 14.Multiple wind paths are, for example, cooler Wind path in the foamed heat-insulating material of 27 top of room and the foamed heat-insulating material by being set to the back side of ice-making compartment 3 are molded Wind path etc..In addition, to the quantity regulating device for air (not shown) being adjusted towards the cold air supply of ice-making compartment 3, such as set It is placed in the midway of the discharge wind path 29b of ice-making compartment 3.In ice-making compartment 3, the outlet 70 of cold air is set to the back side of ice-making compartment 3 Any position, from outlet 70 be discharged cold air to mechanism for ice maker 71 flow into.The return wind path 30b of ice-making compartment 3, from cooler 14 front surface, which acts 1 center of ratio refrigerator being set in the entire width of cooler 14 and leans on the position of 3 side of ice-making compartment and be arranged, to exist In the projection width in the front-back direction of ice-making compartment 3.The return wind path 30b of ice-making compartment 3 in the back face wall of ice-making compartment 3 by arbitrarily setting Inboard in the gabarit of the return port 72, ice making chamber surface set and the foaming heat insulation with the gabarit adjoining on the surface of ice-making compartment 3 The compositions such as a part for material.The outlet for returning to wind path 30b of ice-making compartment 3 is attached in the cold air return port 74 from freezing chamber 6 Nearly interflow.In order to avoid collaborating crushing, the cold air return port 74 preferably from freezing chamber 6 is formed as cold from ice-making compartment 3 Near the outlet of gas, size more than the left and right width for returning to wind path 30b with ice-making compartment 3.In addition, ice-making compartment 3 returns Return air road 30b can also directly return to cooler room 27 in the position more against the top than the cold air return port 74 from freezing chamber 6 It is interior.

Figure 16 is to indicate that the switching chamber discharge wind path of the refrigerator involved by embodiments of the present invention 1 and switching chamber return The definition graph of wind path.(a) of Figure 16 is the partial front elevation view of the refrigerator 1 when removing door, and (b) of Figure 16 is the part of refrigerator 1 Side sectional view.

As shown in figure 16, it is connected by structure by by multiple wind paths towards the discharge wind path 29c of the cold air of temperature switching chamber 4 At wherein above-mentioned multiple wind paths supply to pass through from the cold air after the discharge of the pressure fan 15 for the top for being set to cooler 14.Multiple wind Road is the wind path in the foamed heat-insulating material of 27 top of cooler room and the hair by being set to the back side of temperature switching chamber 4 Steep molding wind path of heat-barrier material etc..In addition, adjusting dress to the air quantity being adjusted towards the cold air supply of temperature switching chamber 4 18b (with reference to Fig. 3) is set, such as is set to the midway of the discharge wind path 29c of temperature switching chamber 4.In addition, the return wind path of switching chamber 30c by the cold air return port being arbitrarily arranged in the back face wall of temperature switching chamber 4, the gabarit on 4 surface of temperature switching chamber inboard, And the compositions such as part of foamed heat-insulating material abutted with the gabarit on 4 surface of temperature switching chamber.In addition, returning to wind path 30c Outlet be set to the right side for returning to wind path 30e from freezing chamber 6.

Figure 17 is the freezing chamber discharge wind path and freezing chamber 6 for indicating the refrigerator involved by embodiments of the present invention 1 Return to the definition graph of wind path.(a) of Figure 17 is the partial front elevation view of the refrigerator 1 when removing door, and (b) of Figure 17 is refrigerator 1 Fragmentary side cross-sectional view.

As shown in figure 17, the discharge wind path 29e of freezing chamber 6 is constituted by connecting multiple wind paths, wherein above-mentioned multiple Wind path supplies to pass through from the cold air after the discharge of pressure fan 15 being set to above cooler 14.Multiple wind paths are, for example, in back face wall 31 Wind path 28 and be set to vegetable compartment 5 bottom wall 35 wind path etc..The cold air for having passed through the discharge wind path 29e of freezing chamber 6 is borrowed The guide part for helping the depth side ceiling for being set to freezing chamber 6, is fed to being piled into the storage box of multilayer in freezing chamber 6, To be cooled down to the reserve in freezing chamber 6.In addition, the return wind path 30e of freezing chamber 6 is by interior towards vegetable from freezing chamber 6 The wind path of the rear setting of the bottom wall 35 of dish room 5 is constituted.Return wind path 30e shapes in the range in the left and right width of cooler 14 At.The outlet for returning to wind path 30e of freezing chamber 6 identically with the return wind path 30a of refrigerating chamber 2, cooler room 27 it is interior from The lower right of cooler 14 is connect with drain pan 80.In addition, above-mentioned guide part can also for example have along the front and back of refrigerator 1 To two guide parts of arrangement, it is configured with the guide part towards the discharge side in freezing chamber 6 in front, is in addition configured at rear The guide part of return side from freezing chamber 6.

Figure 18 is to indicate that the 1st outline of the structure of the storage spacer involved by embodiments of the present invention 1 cuts open View.Figure 19 is the 2nd diagrammatic sectional view of the structure for indicating the storage spacer involved by embodiments of the present invention 1 Figure.In figure 11 described above, the storeroom side that low temperature is configured to the vacuum heat insulation material 35b in the bottom wall 35 of vegetable compartment 5 is (cold Freeze 6 side of room) the case where be illustrated, but vacuum heat insulation material 35b can also be configured at bottom as shown in Figure 18 and Figure 19 Any position in wall 35.As shown in figure 19, the case where vacuum heat insulation material 35b is disposed in 5 side of vegetable compartment of gabarit wall surface Under, the clad ratio to 5 internal face of vegetable compartment can be increased, so as to inhibit hot intrusion volume.

In addition, in the back face wall 31 of vegetable compartment 5, vacuum heat insulation material 39 can also be configured at arbitrary position.Figure 20 It is the 1st side sectional view of the wall structure for indicating the vegetable compartment periphery involved by embodiments of the present invention 1.Figure 21 is Indicate the 2nd side sectional view of the wall structure on the vegetable compartment periphery involved by embodiments of the present invention 1.Figure 22 is table Show the 3rd side sectional view of the wall structure on the vegetable compartment periphery involved by embodiments of the present invention 1.

In fig. 20, back face wall 31 is from close to the rear of cooler 14 towards front, to become thermal wall gabarit 42, be formed Have the foamed heat-insulating material 40 of wind path 28, vacuum heat insulation material 39, foamed heat-insulating material 40,5 side of vegetable compartment thermal wall gabarit The mode of 38 sequence is constituted.In addition, in figure 21, vacuum heat insulation material 39 in order to ensure vacuum heat insulation material 39 effect, And it is attached at the inner wall of the thermal wall gabarit 42 of 14 side of cooler.In the configuration example shown in Figure 21, exist by from pressure fan The outlet port of the cold air of 15 discharges or the limitation of outlet size, and make what the height dimension of vacuum heat insulation material 39 reduced Situation.In addition, being not configured around vacuum heat insulation material 39 in the structure of foamed heat-insulating material 40, there are promotion vacuum heat-insulations The worry of the deterioration of material 39, but as shown in figure 22, sent out by being arranged between thermal wall gabarit 42 and vacuum heat insulation material 39 Heat-barrier material 40 is steeped, to protect vacuum heat insulation material 39.In addition, the size of vacuum heat insulation material 39 is set to than that will cool down The area that device 14 projects gained forwards is big, to make the one-dimensional hot amount of movement by back face wall 31 minimize.

In addition, the above-mentioned outlet 44 and return port 45 for being formed in the back side of vegetable compartment 5 can also be configured at left side And either one of right side.Figure 23 A are the back side wall portions for indicating the vegetables indoor observation involved by the embodiments of the present invention 1 The 1st front section view.Figure 23 B are the back side for indicating the vegetables indoor observation involved by the embodiments of the present invention 1 2nd front section view of wall portion.

Be configured at shown in Figure 23 A left side the case where or be configured at as shown in fig. 23b right side in the case of, by In without in right side or left side setting wind path, therefore vacuum heat insulation material 39 is arranged in which can expand.In such knot In structure, the clad ratio of the vacuum heat insulation material 39 of vegetable compartment 5 increases, and thermal insulation is strengthened.That is, from vegetable compartment 5 towards other The heat of storeroom is mobile or the cold and hot movement from other storerooms and cooler room 27 etc. towards vegetable compartment 5 is suppressed. In addition, being suppressed towards the heat intrusion of vegetable compartment 5 outside refrigerator 1.

On the other hand, in the case where the clad ratio of vacuum heat insulation material to be set to be large, the mean temperature of vegetable compartment 5 is deposited In the trend of reduction.Therefore, refrigerator 1 can also have the structure kept for the indoor temperature to vegetable compartment 5.

Figure 24 is the schematic diagram of the configuration for the muff heater for indicating the vegetable compartment involved by embodiments of the present invention 1. In fig. 24, it shows to keep the indoor temperature of vegetable compartment 5 if necessary, and is provided with the muff heater using resistance 46 example.Muff heater 46 for example with the arbitrary capacity of 3W~10W or so, is set to base surface, the back of the body of vegetable compartment 5 The relatively low point of the indoor temperature of any position, particularly vegetable compartment 5 on face, left side and right side.Muff heater 46 according to external air temperature and the indoor temperature of vegetable compartment 5, and by the electrified rate of time reference (conduction time relative to The ratio of fiducial time) and it is carried out energization.

Figure 25 is the schematic diagram of the configuration for the heat-dissipating pipe for indicating the vegetable compartment involved by embodiments of the present invention 1.Figure 26 It is the schematic diagram of the connection relation of the heat-dissipating pipe and refrigerant circuit that indicate the vegetable compartment involved by embodiments of the present invention 1. In fig. 25, the inside of the polyurethane foam material 23a in the left and right sidewall of vegetable compartment 5 is shown, in the gabarit of bottom wall 35 The heat-barrier material side in portion is configured with the structure of heat-dissipating pipe 47 instead of above-mentioned muff heater 46.Heat-dissipating pipe 47 makes cooler 14 Used refrigerant circulates and radiates into vegetable compartment 5.As shown in figure 26, the decompressor 13 of refrigerant circuit 7 for example by Flow path switching three-way valve 48 and 2 capillaries (capillary 51a and capillary 51b etc.) are constituted.It is returned in above-mentioned refrigerant On road 7, after preventing pipe 11 from being connect with dryer 12 via moisture condensation, the downstream side of flow path switching three-way valve 48 is switched connection. Outlet 50 in 2 outlets 49,50 in 48 downstream side of flow path switching three-way valve is via above-mentioned heat-dissipating pipe 47 and capillary One end of 51a connects.On the other hand, outlet 49 is connect with one end of capillary 51b.It is preferred that the capillary being connect with outlet 49 Pipe 51b is formed to the structure of change decompression amount.

In such a configuration, if heat-dissipating pipe 47 sheds the heat of refrigerant into vegetable compartment 5, in air lateral load Increase, plays a role in the increased direction of the condensing capacity of refrigeration cycle side towards refrigerant.As a result, improving refrigeration cycle Efficiency can reduce consumption electric power compared with the case where using muff heater 46.

Based on Figure 27~Figure 29, illustrate the structure being adjusted to the refrigerant flow flowed in heat-dissipating pipe 47.Figure 27 is Indicate not going out with what the heat-dissipating pipe towards vegetable compartment was connect in the flow path switching three-way valve involved by embodiments of the present invention 1 The figure of the discharge characteristic of mouth pipe side.Figure 28 is the outline structure of the flow path switching three-way valve involved by embodiments of the present invention 1 Figure.Figure 29 is the step pitch relative to rotation gear in the flow path switching three-way valve indicated involved by embodiments of the present invention 1 (STEP) flow path forms the definition graph of state.

As shown in figure 28, expansion is controlled electronically as flow path switching three-way valve 48 is such as using linear electron expansion valve Valve to the multistage is adjusted the flow of the refrigerant from the discharge of outlet 49 for being connected to capillary 51b.Flow path is cut Triple valve 48 is changed substantially to be made of four phase stepper motor 52 of low-voltage and valve body 53 etc..Valve body 53 is used as main portion in inside Part and with magnetized rotor 54, central gear 55, rotation gear 56, rotating pad 57, valve seat 58, gabarit shell 59 and bottom plate 60 etc..For flow path switching three-way valve 48, single-stage driving is carried out by four phase stepper motor 52 of 1-2 phases excitation pair, to Magnetized rotor 54 is set to execute spinning movement.Magnetized rotor 54 directly links with central gear 55, if magnetized rotor 54 rotates, in Heart gear 55 carries out the spinning movement of same amount towards direction identical with magnetized rotor 54.

In addition, as shown in figure 29, central gear 55 is directly engaged with rotation gear 56, therefore it is fixed on rotation gear 56 On the basis of the central shaft for being set to valve seat 58, the rotation of acceptor center gear 55 drives and carries out spinning movement rotating pad 57. Rotating pad 57 is provided with the different aperture 61,62,63 of internal diameter at 3.Any aperture at 3 in aperture 61,62,63 is because of rotating pad 57 spinning movement and it is Chong Die with the exit aperture of valve seat 58 64 when, flow out as defined in refrigerant flow.Figure 29 (a)~ (g) in, show that the asynchronous flow path away from (STEP) relative to rotation gear 56 forms state.As shown in figure 27, it is exporting 49 side of pipe is configured to the sequence from small to large according to flow, fully closed, throttle-flow A, throttle-flow B, throttle-flow C and It is switched between the flow control in this 5 stages of standard-sized sheet.In the flow path formation state of Figure 29, state (b) with it is fully closed right It answers, state (c) is corresponding with throttle-flow A, and state (d) is corresponding with throttle-flow B, C pairs of state (e) and throttle-flow It answers, and state (f) is corresponding with standard-sized sheet.

Due to having such structure, to which refrigerator 1 can either ensure the temperature of vegetable compartment 5, and consumption electricity can be realized The reduction of strength.In addition, in the heat preservation of vegetable compartment 5 using muff heater 46 that resistance is utilized in the case of, can also Instead of flow path switching three-way valve, and apply the two-port valve of the side outlet that can carry out flow control in only being exported there are 2.

Based on Figure 30~Figure 31 B, the drainage path throughout cooler room 27 and the setting of Machine Room 90 is illustrated.Figure 30 be the local side section view of the structure for a part and Machine Room for indicating the cooler room involved by embodiments of the present invention 1 The figure of figure.Figure 31 A are the 1st approximate vertical views of the structure for indicating the drain pan involved by embodiments of the present invention 1.Figure 31B is the 2nd approximate vertical view of the structure for indicating the drain pan involved by embodiments of the present invention 1.

As shown in figure 30, in the lower section of cooler room 27, it is provided with the defrosting list for melting the frost for being attached to cooler 14 Member 67 and the drain pan for guiding the moisture such as the thawing water generated when defrosting acts from cooler room 27 to Machine Room 90 80。

Defrosting unit 67 is for example made of Glass tube heater.Glass tube heater is protected by nichrome wire with to nichrome wire The compositions such as the glass tube of shield, in the defrosting of cooler 14, nichrome wire generates heat because of resistance.It is preferred that defrosting unit 67 is in cooler Room 27 and in the lower section of cooler 14, is set in the perspective plane of the upper and lower directions of aftermentioned drainage path entrance.

Drain pan 80 is made of the thermal wall 99 being folded between vegetable compartment 5 and Machine Room 90, and is set to than vegetable compartment 5 The low position of base surface.Thermal wall 99 for example indicate constitute vegetable compartment 5 bottom wall 35 thermal wall rear portion (hereinafter, Referred to as wall portion 34) and heat insulating box 19 in formation Machine Room 90 wall portion 19a.For wall portion 34, for example, upper table Face 34a and the base surface of vegetable compartment 5 are integrally formed, and lower surface 34b and the ceiling face of freezing chamber 6 are integrally formed.In wall portion 34 Heat-barrier material 34c is provided between upper surface 34a and lower surface 34b, lower surface 34b is from upper surface 34a deviation certain distances Forming.

Drain pan 80 has：Receive the water-accepting part 81 of the moisture dripped from cooler 14；And for being received by water-accepting part 81 The water arrived by tube shape drainage path 82.Water-accepting part 81 is formed by the upper surface 34a of wall portion 34, and with by moisture to The mode that drainage path 82 guides is formed towards the entrance 83 of drainage path 82 and shape inclined downward.Drainage path Inside the heat-barrier material of 82 perforation thermal walls 99, and it is prominent to Machine Room 90 to export 84.For drainage path 82, and enter Mouth 83 is compared, and internal diameter becomes smaller at outlet 84.Seam is not arranged on the path of the inside of thermal wall 99 for drainage path 82, but It is integrally formed from entrance 83 to outlet 84.In addition, drainage path 82 at entrance 83, is integrally formed with water-accepting part 81.For example, In the case where water-accepting part 81 and drainage path 82 are formed by the upper surface 34a that is, gabarit of wall portion 34, moisture does not pass through company Machine Room 90 is directed to from cooler room 27 to socket part.

As shown in Figure 31 A and Figure 31 B, entrance 83 is for example configured at the substantial middle of drain pan 80 in the lateral direction Portion, and be formed as width 50mm groove shapes below from any position in front towards rear in the longitudinal direction.Entrance 83 Section shape is, for example, that round, elliptical shape or oblong shape or semiellipse and rectangular combined shaped or half are oval With rectangular combined shaped, and rear side reach drain pan 80 water receiving face substantially rearmost part.In addition, for draining road For the outlet 84 of diameter 82, for example, internal diameter in 20mm hereinafter, and section shape be shaped generally as round.

As shown in Figure 30, Figure 31 A and Figure 31 B, drainage path 82 is formed as with 83 court of entrance from drainage path 82 The substantially funnel shaped in downward direction advancing, and being become narrow gradually on depth direction.That is, drainage path 82 83 side of entrance (with Under, referred to as upstream portion 82a) with downstream advancing, sectional area becomes smaller and the position of the front side of section is supported or opposed surface side Approach.The tube shape that 84 side of outlet (hereinafter referred to as downstream portion 82b) of drainage path 82 has internal diameter substantially certain, and formed For the length outstanding into Machine Room 90.The section of upstream portion 82a converges on down since the section shape of above-mentioned entrance 83 The round of trip portion 82b.As shown in figure 30,34 ground of upstream portion 82a interpenetrating walls portions is formed, downstream portion 82b interpenetrating walls portions 19a landform At.In addition it is also possible to be configured in the outlet of drainage path 82 setting lid construction, to not make the highly humid air in Machine Room 90 Via drainage path 82 to the inside of refrigerator 1 adverse current.

In Figure 31 A and Figure 31 B, the section center of the section center Oa and downstream portion 82b of upstream portion 82a are shown The section center Oa of Ob, upstream portion 82a are moved to 1 rear of refrigerator in turn with downstream preceding, and reach cuing open for downstream portion 82b Face center Ob.Drainage path 82 is set as, and rearmost part is from entrance 83 to outlet 84 along the back side of refrigerator 1.

In addition, as shown in figure 30, polyurethane foam material 23a and vacuum heat insulation material 23b are provided in wall portion 19a. Drainage path is set as described above, and in the downstream portion 82b being formed in wall portion 19a, sectional area is smaller than upstream portion 82a, and And the rearmost part of drainage path is along the back side of refrigerator 1.Therefore, vacuum heat insulation material 23b can be arranged in wall portion 19a to ice Near the back side of case 1.

In addition, as shown in figure 30, path heater can also be further provided in the upstream portion 82a of drainage path 82 85.Path heater 85 is constituted such as by the flexible cord heater with silicon clad, and is set to the heat-insulated material of wall portion 34 Expect in 34c.Path heater 85 is in defrosting by fever and by entrance 83 that do not melt into water, to fall to drainage path 82 Ice melt, to inhibit the blocking of drainage path 82.

In addition, on the face for forming entrance 83, it is provided with the metal tray 89 by metal forming.In fig. 30, metal support Disk 89 is set to the upstream portion 82a of water-accepting part 81 and drainage path 82, and the radiant heat for the unit 67 that defrosts is transferred to and is dripped On 80 face of disk, and the ice for falling to drain pan 80 is made to be easy to melt.

It is preferred that metal tray 89 is configured to, the length relative to the defrosting unit 67 for being set to top in the lateral direction, With the same above size, there is the size of the half of the front and rear width of drain pan 80 or more in the longitudinal direction.Separately Outside, the lateral area in the region covered by metal tray 89 in drain pan 80, can also be by claddings such as metal bands.

Metal tray 89 in such a way that the shape of the entrance 83 with drainage path 82 is roughly the same, along water-accepting part 81 and Upstream portion 82a is formed, to promote the conduction of the generation heat from the path heater 85 being arranged inside heat-barrier material 34c.

A part is defrosted the thawing water that unit 67 melts and dropped to from cooler 14 water-accepting part 81 of drain pan 80, borrows It helps the gradient of water-accepting part 81 and is imported into the entrance 83 of drainage path 82.The thawing water of entrance 83 is directed into drainage path 82 It flows into, and is further melted by path heater 85 during by upstream portion 82a, and flowed to the small downstream portion 82b of internal diameter Enter.Due to being not provided with interconnecting piece in drainage path 82, by thawing water be not impregnated with thermal wall 99, but from protrusion Outlet 84 in Machine Room 90 is discharged to Machine Room 90.

Figure 32 is the rearview of the structure for the inside for indicating the Machine Room involved by embodiments of the present invention 1.In machinery Room 90 is additionally provided with the water receiving ware (drain pan 91) for receiving the moisture that Machine Room 90 is expelled to from the outlet of drainage path 82 84, Heating piping 92 is provided in drain pan 91.Heating is with piping 92 for example by the refrigerant piping of the refrigerant circulation for high temperature It constitutes.

The thawing water for having passed through drainage path 82 is expelled to the drain pan 91 of Machine Room 90 from outlet 84, and puts aside and draining In disk 91.It puts aside to the thawing water of drain pan 91 by heating piping 92 and to the air-cooled condensation in Machine Room 90 is arranged Device 9 and compressor 8 etc. carry out cooling cooling wind etc. and are promoted evaporation.By such structure, until removing next time Until frost action starts, the evaporation of the thawing water of previous generation is completed.

In addition, the wind path of refrigerator 1, outlet and return port are not limited to above-mentioned structure.Figure 33 is to indicate this hair The front view of another configuration example of the back face wall from vegetables indoor observation of refrigerator involved by bright embodiment 1.Such as Figure 33 Shown, the return cold air from refrigerating chamber 2 can also be the structure flowed into vegetable compartment 5.In this case, for example, for coming from Outlet, the i.e. refrigeration return port 75 that the return cold air of refrigerating chamber 2 is discharged to vegetable compartment 5, is formed in the back face wall 31 of vegetable compartment 5 Inner wall on right upper portion, the return port 45 from vegetable compartment 5 is formed in the substantially central portion of the lower backside of vegetable compartment 5. It is configured to moreover, the return wind path of refrigerating chamber 2 and vegetable compartment return to wind path, collaborates in the back underside of vegetable compartment 5, and from a left side It is back to cooler room 27 between the return wind path 30e of the freezing chamber 6 of right segmentation.It is arranged in the back face wall 31 of vegetable compartment 5 The return wind path 76 of refrigerating chamber 2, for example, in the vegetable compartment 5 between it is by no heat insulating function and molding by injection moulding Internal face separates.It therefore, can also be by the return wind path 76 and vegetable compartment of refrigerating chamber 2 in order to adjust the temperature in vegetable compartment 5 Multiple holes 77 are arranged in the internal face separated in 5.Alternatively, it is also possible to which the sliding part that freely multiple holes 77 are opened and closed is arranged 78.If the upper and lower upward sliding shown in arrow of sliding part 78, the quantity in the hole 77 occluded are adjusted, therefore user's energy It is enough arbitrarily to adjust the temperature in vegetable compartment 5 by making the movement of sliding part 78.In such a configuration, due to can be in vegetables It adjusts, therefore can not also be arranged for being adjusted towards the cold air supply in vegetable compartment 5 in wind path into trip temperature in room 5 Whole above-mentioned quantity regulating device for air 18c.

As described above, in the embodiment 1, refrigerator 1 has：Heat insulating box 19, the heat insulating box 19 have interior case 22, Outer container 21 and the heat-barrier material in the space being set between interior case 22 and outer container 21 23；Machine Room 90, which is to make The lower backside of heat insulating box 19 is concave inwardly and is formed, and is configured for compressor 8；Cooler room 27, the cooler room 27 exist The top of Machine Room 90 is formed in heat insulating box 19, and the cooler 14 for generating cold air configures；Water-accepting part 81, the water receiving Portion 81 is set to the lower section of cooler 14 in cooler room 27, and receives the water from cooler 14；And drainage path 82, The drainage path 82 is provided with entrance 83 in water-accepting part 81, in such a way that cooler room 27 to be connected to Machine Room 90, perforation folder The thermal wall 99 being located between cooler room 27 and Machine Room 90, and protrude outlet 84, drainage path towards Machine Room 90 82 83 side of entrance have with before downstream so that sectional area become smaller and the center of section (section center Oa) to The shape of back side approach, drainage path 82 are integrally formed from entrance 83 to outlet 84.

Drainage path 82 has as a result, tends to outlet 84 and internal diameter reduces and section center Oa is to refrigerator 1 from entrance 83 Back side approach shape, therefore vacuum heat insulation material can be arranged in the thermal wall 99 between cooler room 27 and Machine Room 90 (such as vacuum heat insulation material 23b).Therefore, refrigerator 1 can ensure heat-proof quality.In addition, drainage path 82 in the past heat-insulated The structure with interconnecting piece is different in material, is integrally formed from entrance 83 to outlet 84, therefore inhibits from 82 direction of drainage path Moisture inside thermal wall 99 is impregnated with.Therefore, refrigerator 1 can reduce water in refrigerator caused by the occlusion by drainage path 82 and leak Deng generation.

In addition, drainage path 82 has, overleaf a part for side or back side is vertically prolonged in plan view The wall surface stretched.That is, drainage path 82 is set as, when overlook observation with the immediate position in the back side of refrigerator 1 refrigerator 1 up and down For example along 1 back side of refrigerator on direction.It, can as a result, in the thermal wall 99 being located between cooler room 27 and Machine Room 90 The range that vacuum heat insulation material (such as vacuum heat insulation material 23b) will be arranged is expanded to the back side of refrigerator 1.Therefore, refrigerator 1 is special It is not in the cladding area for needing heat-insulated position that can increase vacuum heat insulation material 23b.It is pushed up as a result, reducing Machine Room 90 The moisture condensation in face, in addition improves energy saving.

In addition, drainage path 82 is integrally formed with water-accepting part 81.Pass through as a result, in the thawing water for being dripped from cooler 14 Path on be not provided with interconnecting piece, therefore can further increase thawing water from cooler 14 towards Machine Room 90 drain can By property.

In addition, the section shape of the entrance 83 of drainage path 82 is elliptical shape or oblong shape.Drainage path as a result, It is easy to be integrally formed with drain pan 80.However, it is previous, the drainage path entrance in the water receiving face of drain pan is set in roughly circular Shape.In the case where wanting to maintain such shape and ensure drainage path length outstanding towards Machine Room, due to draining Path is elongated shape, therefore in product manufacturing and molding procedure, causes drainage path to go out in order to ensure release property The internal diameter of mouth extremely reduces.Therefore, in previous drainage path, drainage reduces, and generates occlusion etc. caused by foreign matter Probability increases.On the other hand, entrance 83 is configured to shape as described above by above-mentioned drainage path 82, therefore is easy to make water receiving Portion 81 is integrally formed with drainage path 82.Therefore, refrigerator 1 can obtain the drainage path 82 of stay in grade.

In addition, refrigerator 1 is also equipped with the defrosting list for melting the frost of cooler 14 by heater or high temperature refrigerant Member 67.The frost for being attached to cooler 14 can be melted and be removed from cooler 14 by defrosting unit 67 as a result, so as to maintain The performance of cooler 14.

In addition, refrigerator 1 is also equipped with the drain pan 91 for the lower section for being set to outlet 84 in Machine Room 90, including drain pan 91 Portion is configured with heating piping 92.Thereby, it is possible to make the moisture for being expelled to Machine Room 90 evaporation in drain pan 91, can protect The equipment etc. for being set to Machine Room 90.

In addition, refrigerator 1 is also equipped with the 1st storeroom (such as vegetable compartment 5) being formed in heat insulating box 19, water-accepting part 81 with And drainage path 82 is formed by so that the bottom plate of the 1st storeroom (vegetable compartment 5) is extended towards cooler room 27, is configured at The position lower than base surface.Refrigerator 1 can obtain following drain pan 80 as a result,：Reduce the portion for separately constituting drain pan 80 Part, and for thawing water by path on be not provided with interconnecting piece.

In addition, refrigerator 1 is also equipped with the front of the lower section and Machine Room 90 that are formed in the 1st storeroom (such as vegetable compartment 5), and It is set to the 2nd storeroom (such as freezing chamber 6) of the temperature lower than the 1st storeroom (vegetable compartment 5), thermal wall 99 is the 1st storage Hide the bottom wall 35 of room (vegetable compartment) and the wall portion 19a of the formation Machine Room of heat insulating box 19.Refrigerator 1 is being set as low as a result, Between the 2nd storeroom (freezing chamber 6) and the Machine Room 90 in outside for being formed in heat insulating box 19 of temperature, it can also ensure that heat-insulated Property, therefore energy saving can be improved.In particular, the downstream portion 82b of drainage path internal diameters compared with upstream portion 82a are small, and it is located at Back side, therefore refrigerator 1 is by making the vacuum heat insulation material 23b in wall portion 19a expand, so as to improve Machine Room 90, with Thermal insulation between 2nd storeroom (freezing chamber 6) and cooler room 27.

Embodiment 2.

In the embodiment 1, drainage path is provided with rearmost part in a manner of the back side along refrigerator from the inlet to the outlet. In embodiment 2, drainage path is illustrated in the inclined structure of outlet side.Hereinafter, the difference only pair with embodiment 1 Point illustrates, and for other structures, is set as structure having the same.

Figure 34 is the structure of the part and Machine Room to indicating the cooler room involved by embodiments of the present invention 2 The figure that fragmentary side cross-sectional view is indicated.The entrance 183 of drainage path 182 is, for example, round, elliptical shape or oblong Shape or semiellipse and rectangular combined shaped or half oval and rectangular combined shaped, and rear side reaches water receiving The almost rearmost part in face.In addition, outlet 184 is in substantially circular for example formed as section shape.As shown in figure 34, drainage path With downstream advancing, sectional area becomes smaller and before section for 182 183 side of entrance (hereinafter referred to as upstream portion 182a) Support or oppose surface side approach for the position of square side.In addition, 184 side of outlet (hereinafter referred to as downstream portion 182b) of drainage path 182 is with interior The substantially certain tube shape of diameter, and prominent such length is formed towards in Machine Room 90.Moreover, drainage path 182 is from entering Mouth 183 is integrally formed to outlet 184, and the section of upstream portion 182a is formed as receiving since the section shape of above-mentioned entrance 183 It holds back in the round of downstream portion 182b.

In embodiment 2, the downstream portion 182b of drainage path 182 is from the direction at the back side along refrigerator 1 (for example, lead Hang down in downward direction) rearwardly side be formed obliquely.That is, downstream portion 182b is located refrigerator 1 more close to the position of outlet 184 Rear side.The angle for forming downstream portion 182b is set to not damage the formability of drainage path 182 and the row of thawing water Going out property and the angle for not making foreign body retention.For example, the inclination angle of outlet 184 can also be configured to relative to refrigerator 1 into deep water Square to having the angle that water droplet is fallen by dead weight that is, 7 ° or more of the angle of depression (angle, θ).In addition, the angle of depression (angle, θ) The upper limit for example by do not interfere thawing water from the flowing of the upstream portion 182a of drainage path 182 in a manner of be set to less than 90 ° i.e. It can.

More than, the case where in embodiment 2 with embodiment 1 identically, drainage path 182 is formed as from entering Mouth 183 tends to outlet 184 and internal diameter reduces and center is approached to the back side of refrigerator 1, in addition from entrance 183 to outlet 184 are integrally formed.Therefore, with embodiment 1 the case where, refrigerator 1 can either ensure the heat-proof quality of thermal wall 99 again identically The occlusion that can avoid drainage path 182, so as to inhibit the generation of water leakage etc. in refrigerator.

In addition, for the inclination angle of the outlet of drainage path 182 184, the angle of depression (angle relative to depth horizontal direction Spend θ) it is 7 ° or more.The back side of outlet 184 towards the refrigerator 1 of drainage path 182 is formed as a result, therefore in thermal wall 99 The region that vacuum heat insulation material can be arranged is ensured to be relatively wide, to which refrigerator 1 can increase the cladding area of vacuum heat insulation material And strengthen heat-proof quality.

In addition, embodiments of the present invention are not limited to the above embodiment, can make various changes.For example, In embodiment 1, use the heater to generate heat by being powered but it is also possible to be instead of heater as defrosting unit 67 And frost is melted into formal similarity by high temperature refrigerant.

Claims

1. a kind of refrigerator, which is characterized in that

Have：

Heat insulating box, the heat-insulated material with interior case, outer container and the space being set between the interior case and the outer container Material；

Machine Room keeps the lower backside of the heat insulating box concave inwardly and is formed, and is configured for compressor；

Cooler room is formed in above the Machine Room in the heat insulating box, for generating the cooler configuration of cold air；

Water-accepting part is set to the lower section of the cooler in the cooler room, receives the water from the cooler；

Drainage path is provided with entrance in the water-accepting part, in such a way that the cooler room to be connected to the Machine Room, Perforation is folded in the thermal wall between the cooler room and the Machine Room, and exports and protruded towards the Machine Room；With And

Path heater is set to the entrance side of the drainage path,

The section shape of the entrance of the drainage path be elliptical shape or oblong shape,

The entrance side of the drainage path has as downstream preceding sectional area in turn becomes smaller and the centre bit of section The shape for the surface side approach that supports or opposes is set,

The drainage path is integrally formed from the entrance to the outlet.

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

The drainage path has the wall that overleaf a part for side or back side extends in the vertical direction in plan view Face.

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

For the inclination angle of the outlet of the drainage path, the angle of depression relative to depth horizontal direction is 7 ° or more.

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

The drainage path is integrally formed with the water-accepting part.

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

It is also equipped with the defrosting unit for melting the frost of the cooler by heater or high temperature refrigerant.

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

It is also equipped with the water receiving ware for the lower section that the outlet is set in the Machine Room,

The water receiving ware is piped in inside configured with heating.

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

It is also equipped with the 1st storeroom being formed in the heat insulating box,

The water-accepting part and the drainage path are by so that the bottom plate of the 1st storeroom is extended towards the cooler room It is formed, and is configured at the position lower than the base surface.

8. refrigerator according to claim 7, which is characterized in that

It is also equipped with the front of the lower section and the Machine Room that are formed in the 1st storeroom, and is set to than the 1st storage 2nd storeroom of the low temperature in room,

The thermal wall is the wall portion of the formation Machine Room of the bottom wall and the heat insulating box of the 1st storeroom.