CN102692111B - Freezer - Google Patents
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- CN102692111B CN102692111B CN201210055902.6A CN201210055902A CN102692111B CN 102692111 B CN102692111 B CN 102692111B CN 201210055902 A CN201210055902 A CN 201210055902A CN 102692111 B CN102692111 B CN 102692111B
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Abstract
The invention provides a kind of by suppressing the caloric receptivity on outer container surface, raising cooling effectiveness, reduces the freezer of consumes power.This freezer comprises; Heat insulating box, its heat-barrier material that there is interior case, outer container and be configured between interior case and outer container; Lower mechanical room, it is formed at the bottom of heat insulating box; Insulated door, the opening portion of its opening and closing heat insulating box; Storeroom, it has multiple different temperature field be made up of heat insulating box and insulated door, heat insulating box has protuberance, the described outer container surface of the heat insulating box that the heating installation that this protuberance is arranged at lower mechanical room generation higher than external air temperature from running circulates, suppresses to absorb heat from the heating installation of high temperature.
Description
Technical field
The present invention relates to the freezer that a kind of energy-saving effect is high.
Background technology
Fig. 9 is the longitudinal section of the basic structure of the refrigerating chamber of existing freezer.
As shown in Figure 9, the casing 10 of freezer comprises: outer container 11; Interior case 13; Be configured at the vacuum heat insulation material 50,52,53,55 in the thermal wall formed by outer container 11 and interior case 13; With can bonding outer container 11, interior case 13 and vacuum heat insulation material 50,52,53,55, himself there is the foamed heat-insulating materials 12 such as the polyurethane of bonding force.
In casing 10, be provided with the design temperature with not shown vegetable compartment or refrigerating chamber be the refrigerated storage temperature room 14 of less than 10 DEG C and the design temperature with ice-making compartment or quick-frozen room be-16 DEG C to the cryogenic temperature room 15 of-30 DEG C of degree, distinguished by front dividing plate 16 and partition wall 17 between each room.
At the opening front surface of refrigerated storage temperature room 14, there is the door body 30 that can be opened and closed this opening front surface closed.This body 30 comprises: outer container 31; Interior case 33; Be arranged at the vacuum heat insulation material 51 in the thermal wall formed by outer container 31 and interior case 33; With can bonding outer container 31, interior case 33 and vacuum heat insulation material 51, and himself there is the foamed heat-insulating materials 32 such as the polyurethane of bonding force.
At the opening front surface of cryogenic temperature room 15, there is the door body 35 that can be opened and closed this opening front surface closed.This body 35 comprises: outer container 36; Interior case 38; Be arranged at the vacuum heat insulation material 54 in the thermal wall formed by outer container 36 and interior case 38; With can bonding outer container 36, interior case 38 and vacuum heat insulation material 54, and himself there is the foamed heat-insulating materials 37 such as the polyurethane of bonding force.
In addition, although omit in the figure 7, as mentioned above, the respective front surface in refrigerated storage temperature room 14 and cryogenic temperature room 15 is closed by independently door body 30,35.Such as, between refrigerated storage temperature room 14 and cryogenic temperature room 15, separated by the parts being equivalent to front dividing plate 16, these parts being equivalent to front dividing plate 16 bear a body 30,35.In addition, between the refrigerated storage temperature room 14 and cryogenic temperature room 15 of the storeroom different as temperature field, separated by the parts being equivalent to partition wall 17, the parts being equivalent to partition wall 17 have thermal insulation construction.
In addition, in the bottom of cryogenic temperature room 15, interval thermal wall forms lower mechanical room, is provided with compressor 40.
These vacuum heat insulation materials 50,51,52,53,54,55 can realize than foamed heat-insulating material 12,32,37 high heat-proof qualities.Such as, the thermal conductivity of the foamed heat-insulating material 12 of casing 10 side is 0.016W/mK degree, the thermal conductivity of the foamed heat-insulating material 32,37 of door body 30,35 side is 0.018W/mK degree, in contrast, the thermal conductivity of vacuum heat insulation material 50,51,52,53,54,55 is 0.002W/mK ~ 0.003W/mK degree.
Therefore, only be set as with the thermal wall only formed by foamed heat-insulating materials such as polyurethane the thermal wall that the vacuum heat insulation material of equal heat leak amount is formed, produce thermal wall area one timing of heat leak in both supposition, reach the gauge of about 1/5 ~ 1/9 degree of the thermal wall only formed by this foamed heat-insulating material.
In addition, vacuum heat insulation material 50,51,52,53,54,55, as shown in Figure 9, is arranged at each in the thermal wall in the thermal wall around refrigerated storage temperature room 14 and around cryogenic temperature room 15.
These vacuum heat insulation materials 50,51,52,53,54,55, in the part that the temperature difference of the temperature inside the box of freezer and the external surface peripheral of casing 10 is larger, the volume fraction that vacuum heat insulation material accounts for the thermal wall volume formed by outer container 11 and interior case 13 is set larger.
Such as, assuming that the thermal wall area around refrigerated storage temperature room 14 is identical with the thermal wall area around cryogenic temperature room 15, by the vacuum heat insulation material 50 in the heat insulation wall thickness Tr that is arranged on around refrigerated storage temperature room 14, 51, the thickness of 52 is set to tr, by the vacuum heat insulation material 53 in the heat insulation wall thickness Tf that is arranged at around cryogenic temperature room 15, 54, the thickness of 55 is set to tf, heat insulation wall thickness Tr then around refrigerated storage temperature room 14, vacuum heat insulation material 50, 51, the thickness tr of 52, heat insulation wall thickness Tf around cryogenic temperature room 15, vacuum heat insulation material 53, 54, the pass of the thickness tf of 55 is tf/Tf > tr/Tr.
That is, the part that the temperature difference of the external surface peripheral temperature of the temperature in case and casing 10 is large, the volume fraction that vacuum heat insulation material accounts for the thermal wall volume formed by outer container 11 and interior case 13 is set larger.
Like this, by by the part that the temperature difference of the external surface peripheral temperature of the temperature inside the box and casing 10 is large, the volume fraction vacuum heat insulation material being accounted for the thermal wall volume formed by outer container 11 and interior case 13 sets larger, energy-saving operation can be promoted, motion has the freezer (for example, referring to patent document 1) providing a kind of whole energy to improve thus.
Look-ahead technique document
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2006-189207 publication
Summary of the invention
The problem that invention will solve
But, the object that above-mentioned existing structure is emphasized is that how improving thermal insulation enters in case to stop the heat being carried out heat exchange by extraneous air and outer container surface and absorbed, do not consider to reduce the heat exchange amount with the extraneous air on outer container surface, namely from the heat of outer container Surface absorption itself.Particularly be arranged on the compressor surface of the lower mechanical indoor being formed in freezer bottom, in cooling running, reach the temperature higher than extraneous air.Therefore, the air near compressor warms because of compressor, between the air of periphery, produce the temperature difference.Thus, near compressor, produce ascending air (free convection), flow upward along outer container table.And because heat exchange is carried out on ascending air and the outer container surface of the high temperature produced, so the heat absorbed from the ascending air of high temperature on outer container surface greatly, cooling effectiveness easily declines.
The present invention researches and develops for solving above-mentioned existing problem, and object is the heat exchange providing a kind of suppression on outer container surface, reduces the heat from outer container Surface absorption, improves cooling effectiveness thus, reduces the freezer of consumes power.
For solving the method for problem
In order to solve above-mentioned existing problem, freezer of the present invention comprises: heat insulating box, and it has interior case, outer container and is configured at the heat-barrier material between above-mentioned interior case and above-mentioned outer container; Lower mechanical room, it is arranged at the bottom of above-mentioned heat insulating box; Insulated door, the opening portion of the above-mentioned heat insulating box of its opening and closing; And storeroom, it has the different multiple temperature fields be made up of above-mentioned heat insulating box and above-mentioned insulated door, wherein above-mentioned heat insulating box has heat absorption suppressing portion, the above-mentioned outer container surface of the above-mentioned heat insulating box that the heating installation that this heat absorption suppressing portion is arranged at above-mentioned lower mechanical room generation higher than external air temperature from running circulates, suppresses to absorb heat from above-mentioned heating installation.
Thereby, it is possible to reduce the heat from outer container Surface absorption.
Invention effect
Freezer of the present invention can provide a kind of heat by reducing from outer container Surface absorption, improves cooling effectiveness, reduces the freezer of consumes power.
Accompanying drawing explanation
Fig. 1 is the longitudinal section of the freezer of embodiments of the present invention 1.
Fig. 2 is the refrigerating chamber sectional view of the freezer of embodiments of the present invention 1.
Fig. 3 is the cooling chamber of the freezer of 1 of embodiments of the present invention and the amplification sectional view of lower mechanical room.
Fig. 4 is the protuberance amplification sectional view on the outer container surface of the freezer of embodiments of the present invention 1.
Fig. 5 is the amplification sectional view of the size of the protuberance on the outer container surface of the freezer representing embodiments of the present invention 1.
Fig. 6 is the bottom amplification sectional view of the freezer refrigerating chamber of embodiments of the present invention 2.
Fig. 7 is the cooling chamber of the freezer of embodiments of the present invention 3 and the amplification sectional view of lower mechanical room.
Fig. 8 is the bottom amplification sectional view of the refrigerating chamber of the freezer of embodiments of the present invention 4.
Fig. 9 is the sectional view of existing freezer refrigerating chamber.
Symbol description
10 casings
11,31,36,102 outer containers
12,32,37 foamed heat-insulating materials
13, case in 33,38,103
14 refrigerated storage temperature rooms
15 cryogenic temperature rooms
Dividing plate before 16
17 partition walls
30,35 bodies
40,108 compressors
50 ~ 55 vacuum heat insulation materials
100 freezers
101 heat insulating boxes
101a heat-barrier material
104 refrigerating chambers (storeroom)
105 vegetable compartment (storeroom)
106 refrigerating chambers (storeroom)
107 lower mechanical rooms
108a condenser
108b air cooling fan
109 cooling chambers
110 inner face partition walls
111 coolers
112 cooling fans
113 pharoids
114 drip trays
116 evaporating dishes
117,118,119 insulated doors
121 door gaskets
122 partition walls
123 metal bearing part
124 cold air discharge openings
125 cold air sucting inlets
126 ~ 128 receivers
129 protuberances
Detailed description of the invention
The freezer of first aspect present invention comprises: heat insulating box, and it has interior case, outer container and is configured at the heat-barrier material between above-mentioned interior case and above-mentioned outer container; Lower mechanical room, it is arranged at the bottom of above-mentioned heat insulating box; Insulated door, the opening portion of the above-mentioned heat insulating box of its opening and closing; And storeroom, it has the different multiple temperature fields be made up of above-mentioned heat insulating box and above-mentioned insulated door, wherein above-mentioned heat insulating box has heat absorption suppressing portion, the above-mentioned outer container surface of the above-mentioned heat insulating box that the heating installation that this heat absorption suppressing portion is arranged at above-mentioned lower mechanical room generation higher than external air temperature from running circulates, suppresses to absorb heat from above-mentioned heating installation.Thereby, it is possible to provide a kind of heat that can reduce from outer container Surface absorption, improve cooling effectiveness, reduce the freezer of consumes power.
According to a second aspect of the invention, on the basis of first aspect present invention, above-mentioned heat absorption suppressing portion is the protuberance of above-mentioned outer container surface, the towards the outside air side being arranged at above-mentioned heat insulating box.Thus, improve cooling effectiveness, consequently can reduce consumes power.
According to a third aspect of the invention we, on second aspect present invention basis, raised part is formed multiple on the above-mentioned outer container surface of above-mentioned heat insulating box.Thus, improve cooling effectiveness, consequently can reduce consumes power.
According to a forth aspect of the invention, on the basis of third aspect present invention, the direction that raised part is intersected along the circulating direction with the heating installation produced from above-mentioned lower mechanical room is arranged continuously.Therefore, it is possible to reduce the caloric receptivity from outer container surface, improve cooling effectiveness, consequently can reduce consumes power.
According to a fifth aspect of the invention, on the basis of fourth aspect present invention, the above-mentioned outer container being arranged at the storeroom minimum with design temperature in above-mentioned storeroom at least partially relative of raised part is surperficial.Therefore, it is possible to be more reduced the effect of caloric receptivity, improve cooling effectiveness, consequently can reduce consumes power.
According to a sixth aspect of the invention, in the present invention first is to the 5th either side basis on, also there is the compressor being arranged on above-mentioned lower mechanical indoor, the above-mentioned outer container surface of the above-mentioned heat insulating box that the free convection that the surface that above-mentioned heat absorption suppressing portion is arranged at above-mentioned compressor higher than external air temperature from running produces is circulated as above-mentioned heating installation, suppresses to absorb heat from the free convection of high temperature.Therefore, it is possible to reduce the heat of the high temperature free convection absorption produced from compressor surface, improve cooling effectiveness, consequently can reduce consumes power.
According to a seventh aspect of the invention, in of the present invention first to the 5th either side basis on, also there is the condenser being arranged on above-mentioned lower mechanical indoor; Air cooled air cooling fan is carried out with to above-mentioned condenser, above-mentioned heat absorption suppressing portion is arranged at, above-mentioned air cooling fan is utilized to carry out Air flow to the above-mentioned condenser higher than external air temperature in running, the above-mentioned outer container surface of the above-mentioned heat insulating box that the Exhaust Gas becoming high temperature circulates as above-mentioned heating installation, suppresses to absorb heat from the Exhaust Gas of high temperature.Therefore, it is possible to reduce the heat from the discharge absorption of air of by air cooling fan, condenser being carried out to the high temperature after Air flow, improve cooling effectiveness, consequently can reduce consumes power.
Below, accompanying drawing is used to be described in detail embodiments of the present invention.In addition, the embodiment below illustrated is all represent a preferred concrete example of the present invention.The allocation position of the numerical value shown in following embodiment, shape, material, inscape, inscape and connected mode etc. be an example just, does not limit the intent of the present invention.The present invention is only limited by the scope of claims.Therefore, for the structural element that the independent claims of the upper concept of the present invention of the expression in the structural element of following embodiment are not recorded, although it may not be necessary for realizing problem of the present invention, be described as the key element forming preferred mode.
(embodiment 1)
Fig. 1 is the longitudinal section of the freezer of embodiments of the present invention 1.Fig. 2 is the refrigerating chamber sectional view of the freezer of embodiments of the present invention 1.Fig. 3 is the cooling chamber amplification sectional view of the freezer of embodiments of the present invention 1.Fig. 4 is the protuberance amplification sectional view on the outer container surface of the freezer of embodiments of the present invention 1.Fig. 5 is the amplification sectional view of the size of the protuberance on the outer container surface of the freezer representing embodiments of the present invention 1.
In FIG, the heat insulating box 101 of freezer 100 have main use steel plate outer container 102 and by case 103 in the resin formings such as ABS.Heat insulating box 101, as between the outer container 102 of its inside and interior case 103, is filled with the heat-barrier material 101a of the foaming kinds such as such as hard polyurethane foam, with surrounding insulation, is distinguished into multiple storeroom.As multiple storerooms that the inner space of heat insulating box 101 is distinguished, be configured with refrigerating chamber 104 at the topmost of heat insulating box 101, be configured with vegetable compartment 105 in the below of refrigerating chamber 104, be configured with refrigerating chamber 106 at foot.In addition, be provided with for the opening portion to each storeroom storage article at heat insulating box 101.
Its front surface opening portion is closed by the insulated door 117,118,119 by being rotatably supported on a pivot on freezer 100 main body in each storeroom.Namely, refrigerating chamber 104 is closed its front surface opening portion by insulated door 117 and is supported on a pivot on freezer 100 main body with opening and closing state freely, vegetable compartment 105 is closed its front surface opening portion by insulated door 118 and is supported on a pivot on freezer 100 main body with opening and closing state freely, and refrigerating chamber 106 is closed its front surface opening portion by insulated door 119 and is supported on a pivot on freezer 100 main body with opening and closing state freely.
In order to stored refrigerated, the indoor temperature of refrigerating chamber 104 for lower limit, is set as 1 DEG C ~ 5 DEG C with the temperature do not freezed usually, and the indoor design temperature of vegetable compartment 105 is set as 2 DEG C ~ 7 DEG C of or slightly high-temperature identical with refrigerating chamber 104.The indoor temperature of refrigerating chamber 106 is set as cryogenic temperature territory, in order to freezen protective is set as-22 DEG C ~-15 DEG C usually.In addition, refrigerating chamber 106 is not limited to be set in-22 DEG C ~-15 DEG C temperature ranges, in order to improve freezen protective state, is sometimes also set as the low temperature of such as-30 DEG C or-25 DEG C.
In the lower mechanical room 107 that the rear area of the refrigerating chamber 106 of the foot of heat insulating box 101 is formed, be accommodated with compressor 108, carry out the high-pressure side component parts of the kind of refrigeration cycle such as the drying machine (not shown) of moisture removing.
In fig. 2, the cooling chamber 109 generating cold air at the back side of refrigerating chamber 106 is also provided with in heat insulating box 101.Between cooling chamber 109 and refrigerating chamber 106, be formed the inner face partition wall 110 of differentiation heat insulation between refrigerating chamber 106 and cooling chamber 109.Cooler 111, cooling fan 112, pharoid 113, drip tray (drainpan) 114 and evaporating dish 116 is provided with in cooling chamber 109.Cooler 111 works as the evaporimeter of kind of refrigeration cycle, cools in each storeroom of freezer 100.Cooling fan 112 is arranged at the upper space of cooler 111, will be blown to refrigerating chamber 104, vegetable compartment 105 and refrigerating chamber 106 in the mode of forced convertion by the cooled cold air of cooler 111.Pharoid 113, for being arranged at the lower space of cooler 111, will be attached to the glass control heater of the frost of cooler 111 and periphery thereof and ice removing by heating during cooling.Drip tray 114 is arranged at the bottom of pharoid 113, and the defrost water produced when receiving defrosting is also discharged to outside the case of freezer 100 main body.Evaporating dish 116 is outside the case of freezer 100 main body, and in the downstream of drip tray 114, stores the defrost water the ware shape parts making it evaporate of discharging from drip tray 114.In addition, in present embodiment, be sealed with the iso-butane as combustible refrigerant in the inside of kind of refrigeration cycle.
Be provided with at inner face partition wall 110: cold air discharge opening 124, the cold air generated by cooler 111 is supplied from cooling chamber 109 to refrigerating chamber 106 by cooling fan 112 by it; With cold air sucting inlet 125, it is arranged at the below of cold air discharge opening 124, returns cooler 111 for making at the cold air of refrigerating chamber 106 Inner eycle.
In addition, in the present embodiment, be configured with three receivers 126,127,128 in refrigerating chamber 106, this receiver is held in not shown pull-out mechanism and can carries out pull with slidably state, and foodstuff storing class.Specifically, in refrigerating chamber 106, epimere receiver 126, stage casing receiver 127 and hypomere receiver 128 is configured with.
In the end of the inner face of the insulated door 119 corresponding with refrigerating chamber 106, complete cycle is provided with door gasket 121.Door gasket 121, by touching with the metal bearing part 123 being arranged at that distinguish vegetable compartment 105 and refrigerating chamber 106, that periphery is made up of resin portion partition wall 122 front surface, prevents cold air from externally leaking.In addition, in the same manner as corresponding to the insulated door 119 of refrigerating chamber 106, the complete cycle of the complete cycle in the inner face end of the insulated door 117 corresponding with refrigerating chamber 104 and the inner face end with the insulated door 118 of vegetable compartment 105 complete cycle, is also provided with the door gasket had with above-mentioned door gasket 121 said function.
In addition, in order to prevent condensation, at the storeroom lateral surface of metal bearing part 123, be configured with radiating tube (not shown) in the mode of touching with the storeroom medial surface of metal bearing part 123.This radiating tube utilizes the high temperature refrigerant pipe in kind of refrigeration cycle (not shown), by its heat, metal bearing part 123 is heated to high temperature.
In figures 3 and 4, on the surface of the outer container 102 of the position relative with cooling chamber 109, be provided with externally air side protrude and the width (from the inner side of Fig. 1 paper to the direction of side at the moment) of freezer 100 extend, as the protuberance 129 of suppressing portion of absorbing heat.That is, with regard to protuberance 129, outer container 102 compared with the short transverse of freezer 100 in the region that the width of freezer 100 is longer, the outside-air side to freezer 100 is protruded, and this protuberance 129 is arranged continuously on the width of freezer 100.In addition, the surface of the outer container 102 of relative with cooling chamber 109 position is an example on outer container 102 surface.
In addition, more specifically, in the short transverse (above-below direction of Fig. 3) relative to freezer 100, outer container 102 surface on the position relative with cooling chamber 109, separates certain interval (equidistantly) and is provided with multiple protuberance 129.
In addition, in present embodiment, Details as Follows for protuberance 129.As shown in Figure 5, the interval (A size) of adjacent protuberance 129 is 45mm, and the width dimensions (B size) of protuberance 129 is 5mm, and the height dimension (D size) of protuberance 129 is 3mm, angle E is 120 degree.
Below, the action of freezer as constructed as above and effect are described.
First, the flowing of the extraneous air of lower mechanical room 107 periphery is described.
Usually, be provided with suitable space between the outer container 102 of the rear side of the wall of freezer 100 in kitchen etc. and freezer 100 and arrange.Freezer 100 is to when cooling in case, and the surface ratio outside air temperature of the compressor 108 of work is high.Thus, the air near compressor 108 is warmed by compressor 108, between ambient air, produce temperature difference.Thus, near compressor 108, free convection is produced.The free convection produced near compressor 108, solid arrow as Fig. 2 and Fig. 3 is depicted as ascending air, with the space between the wall in kitchen etc. and outer container 102 for wind path, from lower mechanical room 107 along outer container 102 surface relative with cooling chamber 109 to the top diffluence of freezer 100.
Meanwhile, the free convection produced by the work by compressor 108 described above, becomes negative pressure in lower mechanical room 107, so the extraneous air of the bottom of freezer 100 as shown in the dotted arrow of Fig. 2 and Fig. 3 is inhaled in lower mechanical room 107.Thus, produce with the flowing of the air that is wind path of the space between the ground in kitchen etc. and outer container 102.
On the whole, to when cooling in freezer 100, that is, compressor 108 duration of work, produces the larger flowing to freezer 100 back side from the bottom of insulated door 119.
As mentioned above, when the ascending air that the free convection that the work by compressor 108 produces causes flows along outer container 102 surface on the position relative with cooling chamber 109, heated by carrying out heat exchange with this ascending air with outer container 102 surface on cooling chamber 109 relative position.Particularly, cooling chamber 109 is owing to having cooler 111, so temperature is minimum in freezer 100, so easily become large from the heat of ascending air absorption.
But, as the present invention by arranging protuberance 129 in the mode vertical with ascending air, as shown in the arrow of Fig. 4, the region that flow velocity slows down can be produced at the rear of protuberance 129.Because the region thermal conductivity slowed down at flow velocity reduces, the heat absorbed from the ascending air on outer container 102 surface the position relative with cooling chamber 109 can be suppressed.Thus, improve the cooling effectiveness of freezer 100, consequently can reduce consumes power.
In addition, because the cold air generated by cooling chamber 109 can suppress to be heated by ascending air, so cold air circulates between refrigerating chamber 106 and cooling chamber 109 with the state of low temperature.Therefore, it is possible to more uniformly keep Temperature Distribution overall in refrigerating chamber 106.
At this, the suppression of caloric receptivity is described in detail.
Usually, the throughput Q of heat represents by following formula (1).
Q＝K*A*ΔtK＝1/(1/αo+1/αi+1/λ)…(1)
(Q: the throughput of heat, A: heat passes through area, K: hot percent of pass, Δ t: the temperature difference, α o: outer surface heat conductance, α i: storeroom inner face thermal conductivity, λ: thermal wall thermal conductivity (the compound thermal conductance of heat-barrier material λ 1, interior case resin λ 2 and outer container steel plate λ 3))
As in the embodiment described in, on outer container 102 surface relative with cooling chamber 109, protuberance 129 is set, the shape at outer container 102 back side is set to concave-convex type, concave surface thus after protuberance 129, relative to the circulating direction of ascending air, outer surface heat conductance α o is diminished, and K diminishes, and consequently can suppress caloric receptivity.
As mentioned above, a kind of freezer can be provided in the present embodiment, outer container 102 surface of its heat insulating box 101 circulated by the free convection produced from the compressor 108 higher than external air temperature surface in freezer 100 running, the protuberance 129 suppressed from the heat absorption of the free convection of high temperature is set, the heat from outer container 102 Surface absorption can be reduced, improve cooling effectiveness, reduce consumes power.
In addition, there is on outer container 102 surface the protuberance of air side towards the outside.Thus, complicated processing need not be carried out, only process the region that just can form flow velocity at the rear of protuberance 129 and slow down by simple.By formation like this, the thermal conductivity in the region that flow velocity slows down reduces, so can suppress the heat absorbed from extraneous air.Thus, improve cooling effectiveness, consequently can reduce consumes power.
In addition, by arranging multiple protuberance 129 on outer container 102 surface, the region that more flow velocity slows down can be formed.Therefore, it is possible to provide a kind of heat that can suppress from outer container 102 Surface absorption, improve cooling effectiveness, reduce the freezer of consumes power.
In addition, because protuberance 129 and outer container 102 surface are integrally formed, miscellaneous part is not needed.Therefore, it is possible to realize protuberance 129 with being dirt cheap, and can not increase assembling man-hour.In addition, protuberance 129 is formed continuously at the width of the surface crosses freezer 100 of outer container 102, so can improve the rigid of outer container.
In addition, protuberance 129 is parts that the free convection of the high temperature produced because of the work of compressor 108 arrives outer container 102 surface at first, and is arranged at relative outer container 102 surface of cooling chamber 109 minimum with temperature in freezer 100.Therefore, protuberance 129 can suppress the caloric receptivity of the part producing maximum temperature difference, further can improve cooling effectiveness.
Specifically, as shown in Figure 3, between the installed surface (X part) of the drip tray 114 being arranged on the foot be arranged in cooling chamber 109 at least partially of protuberance 129 and the setting position of pharoid 113.
That is, to start substantially in parallel along outer container 102 in free convection to be provided with protuberance 129 near the place of flowing.
In addition, the storeroom beyond refrigerating chamber 106, such as, outer container 102 surface on relative with refrigerating chamber 104 or vegetable compartment 105 position arranges protuberance 129, also can obtain same effect.
In addition, in the present embodiment, the short transverse of the relative outer container 102 of protuberance 129, separates certain interval (equidistantly) and arrange, but this interval also can unequal-interval.
In addition, in present embodiment, protuberance 129 arranges continuously at the width of freezer 100, but also can arrange discontinuously at the width of freezer 100 (that is, having the position not arranging protuberance at the width of freezer 100).
In addition, in present embodiment, with the cold air will generated in cooling chamber 109, carry out the cold air cooled as the forced convertion produced by cooling fan 112, but also can be undertaken cooling (so-called direct-cooling type) by free convection.
In addition, the protuberance size shown in present embodiment is an example, and the present invention does not limit by this size.
(embodiment 2)
Fig. 6 is the bottom enlarged drawing of the freezer of embodiments of the present invention 2.
As shown in Figure 6, at outer container 102 back side of the bottom of freezer 100, there is protuberance 129.
Below, the action of freezer as constructed as above, effect are described.In addition, the explanation of the action to same with embodiment 1, effect is omitted.
By the free convection produced by the work of compressor 108, in lower mechanical room 107, become negative pressure, so the extraneous air of the bottom of freezer 100 as shown in the dotted arrow of Fig. 6 is inhaled in lower mechanical room 107.Thus, along the outer container 102 of the bottom of freezer 100, produce the air flowing of effluent lower mechanical room 107 to the inside in the past in the bottom of freezer 100.
In embodiment 2, outer container 102 surface in the bottom of freezer 100, is provided with the protuberance 129 extended on the direction vertical with the flowing of air.Thus, in the flowing of this air, the region that flow velocity slows down can be formed at the rear of protuberance 129.Due to the thermal conductivity reduction in the region that flow velocity slows down, so form protuberance 129 by outer container 102 surface in the bottom of freezer 100, caloric receptivity can be suppressed.Thus, improve cooling effectiveness, consequently can reduce consumes power.
In addition, due to the heating that cold air can suppress the flowing of above-mentioned air to cause, cold air keeps low-temperature condition to circulate, so more uniformly can keep Temperature Distribution overall in refrigerating chamber 106.
In addition, there is on outer container 102 surface the protuberance of air side towards the outside.Thus, complicated processing need not be carried out, only process the region that just can form flow velocity at the rear of protuberance 129 and slow down by simple.By formation like this, flow velocity slow down region thermal conductivity reduce, so can suppress from extraneous air absorb heat.Thus, improve cooling effectiveness, consequently, can consumes power be reduced.
In addition, by arranging multiple protuberance 129 on outer container 102 surface, more flow velocity can be formed and to slow down region.Therefore, it is possible to provide the heat that can suppress further from outer container 102 Surface absorption, improve cooling effectiveness, reduce the freezer of consumes power.
In addition, because protuberance 129 and outer container 102 back side are integrally formed, miscellaneous part is not needed.Therefore, it is possible to realize protuberance 129 with being dirt cheap, and can not increase assembling man-hour.
In addition, by as shown in Embodiment 1 at outer container 102, protuberance 129 and arranging protuberance 129 at outer container 102 and using as shown in Embodiment 2 are set, one can be provided further can to suppress caloric receptivity, improve cooling effectiveness, reduce the freezer of consumes power further.
(embodiment 3)
Fig. 7 is the cooling chamber of the freezer of embodiments of the present invention 3 and the amplification sectional view of lower mechanical room.
As shown in Figure 7, with embodiment 1 and embodiment 2 unlike, in embodiment 3 be formed at freezer 100 heat insulating box 101 foot refrigerating chamber 106 rear area in lower mechanical room 107 in, except compressor 108, be also accommodated with condenser 108a, for carrying out air cooled air cooling fan 108b to condenser 108a, carrying out the high-pressure side component parts of the kind of refrigeration cycle such as the drying machine (not shown) of moisture removing.
Usually, be provided with suitable space between the wall of freezer 100 in kitchen etc. and the outer container 102 of rear side and arrange.Freezer 100 is to when cooling in case, and the surface ratio outside air temperature of condenser 108a and compressor is high.In addition, in order to improve the heat dispersion of condenser 108a, carry out Air flow by the surface of air cooling fan 108b to condenser 108a and compressor 108.As shown in the solid arrow of Fig. 2 and Fig. 3, condenser 108a and compressor 108 surface are carried out to the air of the high temperature after Air flow, can not feel that uncomfortable mode is discharged from the rear side of freezer 100 with user, result produces ascending air, with the space between the wall in kitchen etc. and outer container 102 for wind path, from lower mechanical room 107 along outer container 102 surface relative with cooling chamber 109 to the top diffluence of freezer 100.
That is, except the ascending air produced from the free convection of embodiment 1, in embodiment 3, ascending air is produced by the work of air cooling fan 108b.As a whole, in the same manner as embodiment 1, to when cooling in freezer 100, produce the larger flowing to freezer 100 back side from the bottom of insulated door 119.
As mentioned above, condenser 108a and compressor are carried out to the discharge air of the high temperature after Air flow, when flowing along the outer container 102 relative with cooling chamber 109 surface, outer container 102 surface relative with cooling chamber 109 is heated by the heat exchange with discharge air.Particularly because cooling chamber 109 has cooler 111, so temperature is minimum in freezer 100, such as, recept the caloric large than other the storeroom etc. of freezer 100 inside.
In addition, when once receiving shiploads of merchandise in freezer 100, when needing cooling capacity sharply, with when usually operate such as the temperature inside the box is maintained uniform temperature running compared with, also need the heat-sinking capability of condenser 108a while making compressor 108 work.Therefore, when condenser 108a and compressor 108 surface ratio operate usually, temperature is high.At this moment, promote the rotating speed of air cooling fan 108b, by Wind Volume, Air flow is carried out to condenser 108a and compressor surface, so air quantity is large and temperature is high when the air ratio of discharging operates usually.Therefore, large when usually operating from the heat ratio of outer container 102 Surface absorption.
As described in embodiment 3, condenser 108a and air cooling fan 108b is provided with in lower mechanical room 107, even the situation that air cooling fan 108b works, by arranging protuberance 129 in the mode vertical with ascending air, as shown in the arrow of Fig. 4, also can form the region that flow velocity slows down at the rear of protuberance 129.That is, the effect same with the freezer 100 of embodiment 1 can be obtained.
(embodiment 4)
Fig. 8 is the bottom amplification sectional view of the freezer of embodiments of the present invention 4.
As shown in Figure 8, on outer container 102 surface of the bottom of freezer 100, there is protuberance 129.
Therefore, as mentioned above, in lower mechanical room 107, when also there is condenser 108a and air cooling fan 108b except compressor 108, when the air ratio of discharging in lower mechanical room 107 operates usually, air quantity is large, and when lower mechanical room 107 internal ratio operates usually, negative pressure is large.Like this, owing to becoming negative pressure in lower mechanical room 107, so the extraneous air of the bottom of freezer 100 as shown in the dotted arrow of Fig. 8 is inhaled in lower mechanical room 107, produce the flowing of the outer container 102 along the bottom of freezer 100.By arranging protuberance 129 on outer container 102 surface on the direction vertical with flowing, the region that flow velocity slows down can be formed at the rear of protuberance 129, due to the thermal conductivity reduction in the region that flow velocity slows down, so caloric receptivity can be suppressed, thus, improve cooling effect, consequently can reduce consumes power.That is, the effect same with the freezer 100 of embodiment 2 can be obtained.
(other embodiment)
In above-mentioned embodiment 3 and 4, air cooling fan 108b is provided with in lower mechanical room 107, even but there is no air cooling fan 108b and in lower mechanical room 107, be configured with the situation of compressor 108 and condenser 108a, because the air in lower mechanical room 107 is except by also being heated by condenser 108a except compressor 108, so also can produce convection current as embodiment 1 and 2, so also can obtain the effect same with embodiment 1 and 2.
In addition, in above-mentioned embodiment 3 and 4, the situation being configured with compressor 108 and condenser 108a in lower mechanical room 107 is described, if but the high-pressure side of kind of refrigeration cycle and the equipment easily becoming high temperature is present in lower mechanical room 107, then in like manner produce free convection with embodiment 1 and 2.That is, easily become the equipment of high temperature in lower mechanical room 107, the structure that the air flowing of high temperature and heating installation produce from lower mechanical room 107, be also contained in structure of the present invention.Therefore, be accommodated in the equipment in lower mechanical room 107, be not limited to above-mentioned embodiment 3 and 4, the effect same with above-mentioned embodiment can be obtained.
Above, based on embodiment, freezer of the present invention is illustrated, but the present invention is not by the restriction of these embodiments.Only otherwise depart from purport of the present invention, from those skilled in the art, the various distortion expected are implemented on the mode of present embodiment, and the inscape in different embodiment are combined the mode of constructing, be included in scope of the present invention.
Utilizability in industry
As mentioned above, freezer of the present invention can be applicable to home-use or business with or vegetables private library.
Claims (3)
1. a freezer, is characterized in that, comprising:
Heat insulating box, it has interior case, outer container and is configured at the heat-barrier material between described interior case and described outer container;
Lower mechanical room, it is arranged at the bottom of described heat insulating box;
Insulated door, the opening portion of heat insulating box described in its opening and closing;
Storeroom, it has the different multiple temperature fields be made up of described heat insulating box and described insulated door; With
In described storeroom, the back side of the storeroom that design temperature is minimum generates the cooling chamber of cold air, wherein
Described heat insulating box has heat absorption suppressing portion, and the described outer container surface of the described heat insulating box that the heating installation that this heat absorption suppressing portion is arranged at described lower mechanical room generation higher than external air temperature from running circulates, suppresses to absorb heat from described heating installation,
Described heat absorption suppressing portion is multiple protuberances that be arranged at the described outer container surface of described heat insulating box, air side towards the outside, the direction that described multiple protuberance intersects along the circulating direction with the heating installation produced from described lower mechanical room is arranged continuously, by producing the region that makes flow velocity slow down at the rear of described protuberance and reducing outer surface heat conductance
Described protuberance be arranged at relative with described cooling chamber described outer container surface at least partially, and between the setting position being arranged on the pharoid on the installed surface of the drip tray of the foot in described cooling chamber and the top of described drip tray.
2. freezer as claimed in claim 1, is characterized in that:
Also there is the compressor being arranged on described lower mechanical indoor,
The described outer container surface of the described heat insulating box that the free convection that the surface that described heat absorption suppressing portion is arranged at described compressor higher than external air temperature from running produces is circulated as described heating installation, suppresses to absorb heat from the free convection of high temperature.
3. freezer as claimed in claim 1, is characterized in that:
Also there is the condenser being arranged on described lower mechanical indoor; With
Air cooled air cooling fan is carried out to described condenser,
Described heat absorption suppressing portion is arranged at, described air cooling fan is utilized to carry out Air flow to the described condenser higher than external air temperature in running, the described outer container surface of the described heat insulating box that the Exhaust Gas becoming high temperature circulates as described heating installation, suppresses to absorb heat from the Exhaust Gas of high temperature.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011067239A JP5909623B2 (en) | 2011-03-25 | 2011-03-25 | refrigerator |
| JP2011-067235 | 2011-03-25 | ||
| JP2011067235A JP2012202603A (en) | 2011-03-25 | 2011-03-25 | Refrigerator |
| JP2011-067239 | 2011-03-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102692111A CN102692111A (en) | 2012-09-26 |
| CN102692111B true CN102692111B (en) | 2016-02-10 |
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ID=46857731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210055902.6A Active CN102692111B (en) | 2011-03-25 | 2012-03-05 | Freezer |
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| Country | Link |
|---|---|
| CN (1) | CN102692111B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106813440B (en) * | 2015-11-27 | 2019-10-29 | 日立环球生活方案株式会社 | Refrigerator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1130751A (en) * | 1994-08-30 | 1996-09-11 | 株式会社日立制作所 | Structure of machine room of refrigeration |
| CN101349493A (en) * | 2007-07-19 | 2009-01-21 | 日立空调·家用电器株式会社 | Refrigerator |
| CN101986067A (en) * | 2009-07-28 | 2011-03-16 | 松下电器产业株式会社 | Refrigerator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0827125B2 (en) * | 1989-06-23 | 1996-03-21 | ホシザキ電機株式会社 | refrigerator |
| JP2002372357A (en) * | 2001-06-14 | 2002-12-26 | Matsushita Refrig Co Ltd | Refrigerator |
-
2012
- 2012-03-05 CN CN201210055902.6A patent/CN102692111B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1130751A (en) * | 1994-08-30 | 1996-09-11 | 株式会社日立制作所 | Structure of machine room of refrigeration |
| CN101349493A (en) * | 2007-07-19 | 2009-01-21 | 日立空调·家用电器株式会社 | Refrigerator |
| CN101986067A (en) * | 2009-07-28 | 2011-03-16 | 松下电器产业株式会社 | Refrigerator |
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| CN102692111A (en) | 2012-09-26 |
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