CN103975206A - Refrigerator - Google Patents
Refrigerator Download PDFInfo
- Publication number
- CN103975206A CN103975206A CN201280060717.4A CN201280060717A CN103975206A CN 103975206 A CN103975206 A CN 103975206A CN 201280060717 A CN201280060717 A CN 201280060717A CN 103975206 A CN103975206 A CN 103975206A
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- China
- Prior art keywords
- evaporimeter
- freezer
- storeroom
- air
- blast fan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/14—Collecting or removing condensed and defrost water; Drip trays
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
- F28D1/0477—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/04—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by preventing the formation of continuous films of condensate on heat-exchange surfaces, e.g. by promoting droplet formation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/18—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
- F28F13/182—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing especially adapted for evaporator or condenser surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F17/00—Removing ice or water from heat-exchange apparatus
- F28F17/005—Means for draining condensates from heat exchangers, e.g. from evaporators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2321/00—Details or arrangements for defrosting; Preventing frosting; Removing condensed or defrost water, not provided for in other groups of this subclass
- F25D2321/14—Collecting condense or defrost water; Removing condense or defrost water
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Geometry (AREA)
- Removal Of Water From Condensation And Defrosting (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
A refrigerator is provided with: an evaporator (111) disposed within a storage compartment (106) which is set to a storage temperature zone or a freezing temperature zone and having a coating which facilitates the scattering or dropping of condensate water from the surface of the evaporator (111), the condensate water being produced on the surface of the evaporator (111); and an air blowing fan (112) for delivering cool air formed by cooling by the evaporator (111). The air blowing fan (112) is adapted to deliver the cool air in the direction having a component in the direction of gravity. As a result, the direction of delivery of the cool air by the air blowing fan (112) has the same directional component as the weight of the condensate water, and this promotes the scattering of the condensate water from the surface of the evaporator (111).
Description
Technical field
The present invention relates to have evaporimeter that energy-saving effect is high and the freezer of Air Blast fan.
Background technology
The power consumption amount of known freezer occupies the majority in the electric equipment of general family.This is because freezer is different from other electric equipment, normally within 24 hours, switches on continuously.Thus, in order to realize the economize on electricity (energy-saving) of general family, require the economize on electricity of freezer.
In general freezer, when switching of door etc., the air of the high temperature and humidity of freezer periphery flow in storehouse.This how wet air circulates in storehouse, the surface condensation at airborne steam when the evaporimeter at evaporimeter, and adjacent condensed water converges each other etc. and grows, through supercooling state, this condensed water freezes, and usings this icing portion as core, the growth of frost needle-like, forms frost layer.It is so-called frost.Along with the surperficial frosting at evaporimeter, the flowing resistance of air increases, and air quantity declines, and cooling capacity declines, and can not maintain the cooling performance of regulation.
Thus, from the viewpoint of the energy-saving design of freezer, the evaporator capacity while how to guarantee frosting (cooling capacity) is very important, if the decline of the cooling capacity that can suppress to be caused by frosting can reach economize on electricityization.
Figure 15 means the longitudinal section of an embodiment of existing freezer.
In Figure 15, freezer casing 1 forms refrigerating chamber 2, vegetable compartment 3, upper strata refrigerating chamber 4, lower floor's refrigerating chamber 5, is provided with the door that can open and close before separately.
In the evaporator room 6 forming at the back side of vegetable compartment 3 and refrigerating chamber 2, dispose evaporimeter 7, and be provided with above it the Air Blast fan 8 of refrigerating chamber 2 use.In addition, above evaporator room 6, be formed with communicatively cold air stream 9.
By the cooled cold air of evaporimeter 7, by Air Blast fan 8, by cold air stream 9 is interior, to refrigerating chamber 2, blow out as shown by arrows, after circulating cooling refrigerating chamber 2 and vegetable compartment 3, flow into the bottom of evaporimeter 7.Now, cold air is to be rightabout vertical upward direction with gravity direction by the direction of evaporimeter 7.
In addition the surface of evaporimeter 7 is imposed in the situation that the overlay film that the condensed water that at the temperature below dew point, dewfall can make to produce on surface disperses from surface.Thus, condensed water disperses from the surface of evaporimeter 7, reduces the frosting degree to evaporimeter 7, reaches the minimizing (for example, with reference to patent documentation 1) of power consumption amount.
But, in the structure of existing freezer, in order to reach the economize on electricity being brought by frosting minimizing, also have room for improvement.
In fact, condensed water disperses from the surface of evaporimeter 7 due to the strength of air-supply conventionally.In existing method, think, when the air quantity of Air Blast fan 8 is enough large, the peeling force that air-supply brings is larger, so condensed water disperses from the surface of evaporimeter 7.But, in the situation that the air quantity of Air Blast fan is less during energy-saving operation etc., the peeling force that air-supply brings is little, because be and the rightabout air-supply of gravity, so be difficult to peel off because the impact of the deadweight of condensed water becomes, exist and do not disperse and stay the surperficial possibility of evaporimeter 7.Further, in the situation that the surperficial overlay film of evaporimeter 7 ground for years is constantly deteriorated, in the situation that the large possibility that same phenomenon occurs that also exists of the air quantity of Air Blast fan 8.
In addition,, in existing freezer, for fear of the decline of such cooling capacity being caused by frosting, running regularly defrosts.As the mode of defrosting running, for example have the flowing of cold-producing medium of switching kind of refrigeration cycle, from the hot gas mode of inner heating fumigators, by near the heater that is arranged at evaporimeter from the heater mode of external heat etc.Because do not bring into play the original function as evaporimeter in defrosting running, so need to shorten defrosting time as far as possible.
But, if shorten simply defrosting time, in defrost water, remain under the state on fan surface and again begin to cool down running, defrost water self becomes flowing resistance, remaining defrost water becomes starting point and produces very early frost, result shortens the interval of defrosting running, has increased on the contrary power consumption.Therefore, the shortening except the high evaporimeter of water-based can bring defrosting time, reaches the economize on electricity of freezer.
The prior art except water-based about this evaporimeter is, after cleaning the surface of evaporimeter, carry out anodized, be formed in the overlay film that surface has a plurality of pores, do not seal pore and carry out stable heat treatment, improve surperficial hydrophily, improve moisture removal property (for example, with reference to patent documentation 2).
But, in existing structure, in order to obtain stable moisture removal property, also there is room for improvement.
In addition,, in existing method, the hydrophilicity-imparting treatment of utilizing the surface texture that anodized etc. carries out is unusual high price, when surface hydrophilicity is deteriorated, exists defrost water to be trapped in pore, the extreme possibility reducing of moisture removal property.
Look-ahead technique document
Patent documentation
Patent documentation 1: TOHKEMY 2001-248951 communique
Patent documentation 2: TOHKEMY 2010-175131 communique
Summary of the invention
Freezer of the present invention comprises: be arranged in storeroom, have that the condensed water that makes to produce on surface easily disperses from surface or the evaporimeter of the overlay film that falls; With by the Air Blast fan of being blown to storeroom by the cold air after evaporator cools.The air supply direction that makes Air Blast fan is gravity direction or the direction with gravity direction composition.
Thus, air supply direction has the direction composition identical with the deadweight of condensed water, so can promote condensed water dispersing from evaporator surface, can stably make condensed water disperse from the surface of evaporimeter, so the present invention can reduce the frosting degree to evaporimeter, suppress the decline of cooling effectiveness, reach economize on electricityization.
In addition, freezer of the present invention comprises: be arranged in storeroom, have the evaporimeter of the overlay film that the defrost water that makes to produce on surface easily falls from surface; With by the Air Blast fan of being blown to storeroom by the cold air after evaporator cools.On the surface of the fin of evaporimeter have gravity direction composition direction linearity multiple row groove is set.
Thus, have outside the overlay film that the defrost water of making easily falls from surface, defrost water flows in groove, so can improve surperficial except water-based from evaporimeter of defrost water, can stably from the surface of evaporimeter, remove defrost water, so the present invention can shorten defrosting time, reach economize on electricityization.
Accompanying drawing explanation
Fig. 1 is the key diagram of general frosting process.
Fig. 2 is the longitudinal section of the freezer of the first embodiment of the present invention.
Fig. 3 is the major part longitudinal section of the freezer of the first embodiment of the present invention.
Fig. 4 is the longitudinal section of the freezer of the second embodiment of the present invention.
Fig. 5 is the major part longitudinal section of the freezer of the second embodiment of the present invention.
Fig. 6 is the longitudinal section of the freezer of the 3rd embodiment of the present invention.
Fig. 7 is the major part longitudinal section of the freezer of embodiments of the present invention.
Fig. 8 A is the stereogram of evaporimeter of the freezer of the 3rd embodiment of the present invention.
Fig. 8 B is the major part amplification stereogram of evaporimeter of the freezer of the 3rd embodiment of the present invention.
Fig. 8 C is the major part amplification profile of evaporimeter of the freezer of the 3rd embodiment of the present invention.
Fig. 9 is the longitudinal section of the freezer of the 4th embodiment of the present invention.
Figure 10 is the major part longitudinal section of the freezer of the 4th embodiment of the present invention.
Figure 11 A is the stereogram of evaporimeter of the freezer of the 4th embodiment of the present invention.
Figure 11 B is the major part amplification stereogram of evaporimeter of the freezer of the 4th embodiment of the present invention.
Figure 11 C is the major part amplification profile of evaporimeter of the freezer of the 4th embodiment of the present invention.
Figure 12 is the longitudinal section of the freezer of the 5th embodiment of the present invention.
Figure 13 is the major part longitudinal section of the freezer of the 5th embodiment of the present invention.
Figure 14 A is the stereogram of evaporimeter of the freezer of the 5th embodiment of the present invention.
Figure 14 B is the major part amplification stereogram of evaporimeter of the freezer of the 5th embodiment of the present invention.
Figure 14 C is the major part amplification profile of evaporimeter of the freezer of the 5th embodiment of the present invention.
Figure 15 is the longitudinal section of existing freezer.
The specific embodiment
Below, with reference to accompanying drawing, embodiments of the present invention are described.In addition, the present invention is not defined in this embodiment.
(the first embodiment)
Fig. 1 is the key diagram of general frosting process.Fig. 2 is the longitudinal section of the freezer of the first embodiment of the present invention.Fig. 3 is the major part longitudinal section of the freezer of the first embodiment of the present invention.
First, general frosting process is described in Fig. 1.
As shown in Fig. 1 (A), air is cooling at cooling surface (evaporator surface), separates out and adhere to when being cooled to dew point (saturation temperature) following at cooling surface as condensing drip.When cooling surface generates condensing drip, it becomes core and grows change greatly.Now, condensing drip at random produces everywhere on cooling surface.
As shown in Fig. 1 (B), when condensing drip growth, while becoming degree that adjacent condensing drip contacts with each other big or small, condensing drip converges each other, becomes large condensing drip.
As shown in Fig. 1 (C), when condensing drip and then when cooling surface is cooling, solidify and freeze, from this icing portion needle-like generate frost, frost layer constantly forms.
Once condensing drip is icing, suppresses white growth and just become difficulty, so in order to reduce the frosting degree to cooling surface, it is very important making it disperse or fall from cooling surface under the state of the condensing drip before freezing.
In Fig. 2, the heat insulating box 101 of freezer 100 mainly have use the outer container 102 of steel plate, by the interior case 103 of the resin formings such as ABS, portion is such as the foamed heat-insulating material that is filled with hard polyurethane foam etc. within it, with heat insulation, by heat insulation partition wall 120,121, mark off a plurality of storerooms 104,105,106 around.
Storeroom 104,105,106 utilizes respectively and rotates pivot suspension freely in insulated door 117,118,119 its front openings portions of sealing of freezer main body.
For example, in the situation that storeroom 104,105,106 is assumed to respectively to refrigerating chamber, vegetable compartment, refrigerating chamber, so the design temperature of refrigerating chamber because to carry out stored refrigerated take can be not freezing temperature be lower limit, be generally 1 ℃～5 ℃, the design temperature of vegetable compartment is 2 ℃～7 ℃ of the Temperature Setting equal or slightly high with refrigerating chamber.The design temperature of refrigerating chamber is set in cryogenic temperature territory, for freezing preservation is set in-22 ℃～-15 ℃ conventionally, but in order to improve freezing preservation state, for example, also can be set as the low temperature of-30 ℃ ,-25 ℃.
Formation Machine Room, bottom 107 in the region, the back side of the storeroom 106 of the foot of heat insulating box 101, takes in compressor 108, carries out the high-pressure side component parts of the kind of refrigeration cycle of drier (not shown) that moisture removes etc.
As shown in Figure 3, at the back side of storeroom 106, be provided with the cooling chamber 109 that generates cold air, between storeroom 106 and cooling chamber 109, be formed with have thermal insulation, for being sent to conveying wind path and the heat insulation cooling chamber partition wall 110 demarcating of storeroom 106 of the cold air of each chamber.In cooling chamber 109, dispose vertical and have that the condensed water that makes to produce on surface easily disperses or the evaporimeter 111 of the overlay film (for example water contact angle is super hydrophobic film more than 160 degree) that falls.In the lower space of the evaporimeter 111 of cooling chamber 109, dispose by forced convertion mode the Air Blast fan 112 to storeroom 104,105,106 air-supplies by the cooled cold air of evaporimeter 111.In addition, in the lower space of the evaporimeter 111 of cooling chamber 109, be formed with for the drain pan 114 of draining outside storehouse and connect road 115, outside the storehouse in its downstream, being formed with evaporating pan 116.
At cooling chamber partition wall 110, be provided with: for the cold gas exhausting outlet 124 that the cold air being generated by evaporimeter 111 is utilized Air Blast fan 112 supply with to storeroom 106; With for making to get back at the cold air of storeroom 106 interior circulations the cold air sucting inlet 125 of evaporimeter 111.
In addition, in storeroom 106, dispose and by pull-out mechanism, kept being drawn out of and the receiver of storage food.In the present embodiment, in storeroom 106, dispose three receivers.Specifically, dispose the receiver 126 on upper strata, the receiver 128 of the receiver 127 in middle level, lower floor.
For the freezer forming in the above described manner, its action, effect are described below.
Flowing of cold air in storeroom 106 is described.The Air Blast fan 112 that the cold air utilization being generated by evaporimeter 111 is rotated along with the rotation of motor blows in storeroom 106 from cold gas exhausting outlet 124 forcibly.Now, the air in storehouse is blown and is cooled by Air Blast fan 112 in the surperficial mode by evaporimeter 111 on gravity direction.The cold air blowing out is cooling by the food being accommodated in receiver 126,127,128.As shown by arrows, the cold air forming after cooling beverage or food sucks from cold air sucting inlet 125 by the receiver 126 on upper strata and the space of the inwall of insulated door 119, gets back to the circulation wind path of evaporimeter 111.
When the insulated door 119 of opening freezer 100 is taken in food etc., the air of the high temperature and humidity of freezer 100 peripheries flow in storeroom 106.Then, after closing insulated door 119, this flows into air in the interior circulation of storeroom 106, when by evaporimeter 111 surperficial, flow into airborne steam and adheres at the surface condensation of evaporimeter 111.Afterwards, adjacent condensed water converges each other, and when having volume to a certain degree and becoming condensing drip, becoming contact angle is ultraphobic water states more than 160 degree.Like this, significantly reduce with the surperficial contact area of evaporimeter 111, thus adhesive force decline, before freezing due to the impact of the air-supply power of Air Blast fan 112 and the deadweight of the condensing drip sur-face peeling from evaporimeter 111, condensed water sputtering or fall.In this structure, the air supply direction of Air Blast fan 112 is identical with the direction of the deadweight of condensing drip, so can further promote surperficial the dispersing of condensate water self-evaporating device 111.
Like this, according to the structure of present embodiment, condensing drip dispersed or fell from the surface of evaporimeter 111 before freezing, and can reduce thus the surperficial frosting degree to evaporimeter 111, can suppress the decline of cooling effectiveness, and the freezer of economize on electricityization is provided.
In addition,, even if the air supply direction of Air Blast fan 112 and gravity direction are not quite identical, as long as there is gravity direction composition, also can access the facilitation effect of dispersing of condensed water.
In addition, in the situation that making Air Blast fan 112 low air quantity by energy-saving operation control etc., or because the surperficial overlay film of the evaporimeters 111 such as use year in year out occurs, in to a certain degree deteriorated situation, also can obtain by the air-supply of gravity direction composition the effect of dispersing of stable condensed water.
In addition, the condensing drip that disperses or fall arrive be arranged on evaporimeter 111 under evaporating pan 116, to freezer 100 is outside, discharge, so can prevent from flowing into the part of being seen by user storeroom 106 inherences, adhere to and freeze and cause the situation of bad order.
As mentioned above, the freezer of present embodiment has: being set in refrigeration or the interior setting of storeroom 106 in cryogenic temperature territory, have that the condensed water that makes to produce on surface easily disperses from surface or the evaporimeter 111 of the overlay film that falls; By the Air Blast fan 112 of the cold air air-supply being generated by evaporimeter 111.And the air supply direction of Air Blast fan 112 is the direction with gravity direction composition.The air supply direction of Air Blast fan 112 has the direction composition identical with the deadweight of condensed water, so promote that condensed water disperses from the surface of evaporimeter 111.Further, at low air quantity or overlay film, also can stably make condensed water disperse from the surface of evaporimeter 111 deteriorated in the situation that, can reduce to the frosting degree of evaporimeter 111, suppress the decline of cooling effectiveness, realize economize on electricityization.
In addition, can reduce to the frosting degree of evaporimeter 111, the freezer of present embodiment also can shorten the defrosting duration of runs of the evaporimeter 111 that Defrost heater (not shown) carries out thus, realizes economize on electricityization.
In addition, in the present embodiment, below evaporimeter 111, dispose Air Blast fan 112, but also can above evaporimeter 111, configure Air Blast fan 112.Now, the impact of the condensed water after Air Blast fan is not vulnerable to disperse, can improve the free degree of the configuration structure of Air Blast fan.
In addition, in the present embodiment, the situation that storeroom is set as to cryogenic temperature territory has been described, but also storeroom can be set in to refrigerated storage temperature territory.
(the second embodiment)
Fig. 4 is the longitudinal section of the freezer of the second embodiment of the present invention.Fig. 5 is the major part longitudinal section of the freezer of the second embodiment of the present invention.In addition, to the part identical with the first embodiment, mark same reference numerals, detailed.
As shown in Figure 5, at the upper surface of storeroom 106, be provided with the cooling chamber 129 that generates cold air, between storeroom 106 and cooling chamber 129, be formed with there is thermal insulation, for by the cooling chamber partition wall 130 that is sent to the conveying wind path of cold air of each chamber and storeroom 106 heat insulation demarcating and forms.In cooling chamber 129, evaporimeter 131 is with the mode that tilts a little from horizontal direction (for example, to inboard 5 degree that tilt of storeroom 106) configuration, and this evaporimeter 131 has the overlay film (for example water contact angle is super hydrophobic film more than 160 degree) that the condensed water that makes to produce on surface easily disperses or falls.Backside space at evaporimeter 131 disposes by forced convertion mode the Air Blast fan 132 to storeroom 104,105,106 air-supplies shown in Fig. 4 by the cooled cold air of evaporimeter 111.
At cooling chamber partition wall 130, be provided with: for the cold gas exhausting outlet 124 that the cold air being generated by evaporimeter 131 is supplied with to storeroom 106 by Air Blast fan 132; For making to get back at the cold air of storeroom 106 interior circulations the cold air sucting inlet 125 of evaporimeter 111.
In addition, in storeroom 106, dispose and by pull-out mechanism, kept being drawn out of and the receiver of storage food.In the present embodiment, in storeroom 106, dispose three receivers.Specifically, dispose the receiver 126 on upper strata, the receiver 128 of the receiver 127 in middle level, lower floor.
For the freezer forming in the above described manner, its action, effect are described below.
First, flowing of cold air in storeroom 106 is described.The Air Blast fan 132 that the cold air utilization being generated by evaporimeter 131 is rotated along with the rotation of motor blows in storeroom 106 from cold gas exhausting outlet 124 forcibly.Now, in storehouse air to blow and to be cooled by Air Blast fan 132 by the surperficial mode of evaporimeter 131 in the direction with gravity direction composition.The cold air blowing out is cooling by the food being accommodated in receiver 126,127,128.As shown by arrows, the cold air forming after cooling beverage or food sucks from cold air sucting inlet 125 by receiver 126 and the space of the inwall of insulated door 119, gets back to the circulation wind path of evaporimeter 131.
When the insulated door 119 of opening freezer 100 is taken in food etc., the air of the high temperature and humidity of freezer 100 peripheries flow in storeroom 106.Then, after closing insulated door 119, this flows into air in the interior circulation of storeroom 106, when by evaporimeter 131 surperficial, flow into airborne steam and adheres at the surface condensation of evaporimeter 131.Afterwards, adjacent condensed water converges etc. each other, and when having volume to a certain degree and becoming condensing drip, becoming contact angle is ultraphobic water states more than 160 degree.Like this, significantly reduce with the surperficial contact area of evaporimeter 131, thus adhesive force decline, before freezing due to the impact of the air-supply power of Air Blast fan 132 and the deadweight of the condensing drip sur-face peeling from evaporimeter 131, condensed water sputtering or fall.In this structure, the air supply direction of Air Blast fan 132 has gravity direction, so can further promote surperficial the dispersing of condensate water self-evaporating device 131.
Like this, according to the structure of present embodiment, condensing drip dispersed or fell from the surface of evaporimeter 131 before freezing, and can reduce thus the surperficial frosting degree to evaporimeter 131, can suppress the decline of cooling effectiveness, and the freezer of economize on electricityization is provided.
In addition, in the situation that making Air Blast fan 132 low air quantity by energy-saving operation control etc., or because the surperficial overlay film of the evaporimeters 131 such as use year in year out occurs, in to a certain degree deteriorated situation, also can obtain by the air-supply of gravity direction composition the effect of dispersing of stable condensed water.
In addition, the condensing drip that disperses or fall arrives the evaporating pan 116 that is arranged on storeroom 106 lower backside, to freezer 100 is outside, discharge, so can prevent from flowing into the part of being seen by user storeroom 106 inherences, adhere to and freeze and cause the situation of bad order.
As mentioned above, the freezer of present embodiment has: being set in refrigeration or the interior setting of storeroom 106 in cryogenic temperature territory, have that the condensed water that makes to produce on surface easily disperses from surface or the evaporimeter 131 of the overlay film that falls; With the Air Blast fan 132 that the cold air being generated by evaporimeter 131 is blown.And the air supply direction of Air Blast fan 132 is the direction with gravity direction composition.The air supply direction of Air Blast fan 132 has the direction composition identical with the deadweight of condensed water, so promote surperficial the dispersing of condensate water self-evaporating device 131.Further, at low air quantity or overlay film, also can stably make condensed water disperse from the surface of evaporimeter 131 deteriorated in the situation that, can reduce to the frosting degree of evaporimeter 131, suppress the decline of cooling effectiveness, realize economize on electricityization.
In addition, can reduce to the frosting degree of evaporimeter 131, the freezer of present embodiment also can shorten the defrosting duration of runs of the evaporimeter 131 that Defrost heater (not shown) carries out thus, realizes economize on electricityization.
In addition, in the present embodiment, the situation that storeroom is set as to cryogenic temperature territory has been described, but also storeroom can be set in to refrigerated storage temperature territory.
(the 3rd embodiment)
Fig. 6 is the longitudinal section of the freezer of the 3rd embodiment of the present invention.Fig. 7 is the longitudinal section of basic structure of major part storeroom of the freezer of the 3rd embodiment of the present invention.Fig. 8 A is the stereogram of evaporimeter of the freezer of the 3rd embodiment of the present invention, and Fig. 8 B is the major part amplification stereogram of this evaporimeter, and Fig. 8 C is the major part amplification profile of this evaporimeter.
In Fig. 6, the heat insulating box 201 of freezer 200 mainly have use the outer container 202 of steel plate, by the interior case 203 of the resin formings such as ABS, portion is such as the foamed heat-insulating material that is filled with hard polyurethane foam etc. within it, with heat insulation, by heat insulation partition wall 220,221, mark off a plurality of storerooms 204,205,206 around.
Each storeroom utilizes respectively and rotates pivot suspension freely in insulated door 217,218,219 its front openings portions of sealing of freezer main body.
For example, in the situation that storeroom 204,205,206 is assumed to respectively to refrigerating chamber, vegetable compartment, refrigerating chamber, so the design temperature of refrigerating chamber because to carry out stored refrigerated take can be not freezing temperature be lower limit, be generally 1 ℃～5 ℃, the design temperature of vegetable compartment is 2 ℃～7 ℃ of the Temperature Setting equal or slightly high with refrigerating chamber.The design temperature of refrigerating chamber is set in cryogenic temperature territory, for freezing preservation is set in-22 ℃～-15 ℃ conventionally, but in order to improve freezing preservation state, for example, also can be set as the low temperature of-30 ℃ ,-25 ℃.
Formation Machine Room, bottom 207 in the region, the back side of the storeroom 206 of the foot of heat insulating box 201, takes in compressor 208, carries out the high-pressure side component parts of the kind of refrigeration cycle of drier (not shown) that moisture removes etc.
In Fig. 7, at the back side of storeroom 206, be provided with the cooling chamber 209 that generates cold air, between storeroom 206 and cooling chamber 209, be formed with have thermal insulation, for being sent to conveying wind path and the heat insulation cooling chamber partition wall 210 demarcating of storeroom 206 of the cold air of each chamber.In cooling chamber 209, dispose the evaporimeter 211 for example, with the overlay film (water contact angle is super hydrophobic film more than 160 degree) that the defrost water that makes to produce on surface easily falls vertical.At the upper space of the evaporimeter 211 of cooling chamber 209, dispose by forced convertion mode the Air Blast fan 212 to storeroom 204,205,206 air-supplies by the cooled cold air of evaporimeter 211.In addition, lower space at the evaporimeter 211 of cooling chamber 209 is provided with the Defrost heater 213 for defrosting to being attached to the surperficial frost of evaporimeter 211, and then in its underpart, be formed with for accepting defrost water and the drain pan of draining outside storehouse 214 and perforation road 215, outside the storehouse in its downstream, be formed with evaporating pan 216.
At cooling chamber partition wall 210, be provided with: for the cold gas exhausting outlet 224 that the cold air being generated by evaporimeter 211 is utilized Air Blast fan 212 supply with to storeroom 206; With for making to get back at the cold air of storeroom 206 interior circulations the cold air sucting inlet 225 of evaporimeter 211.
In addition, in storeroom 206, dispose and by pull-out mechanism, kept being drawn out of and the receiver of storage food.In the present embodiment, in storeroom 206, dispose three receivers.Specifically, dispose the receiver 226 on upper strata, the receiver 228 of the receiver 227 in middle level, lower floor.
Fig. 8 A is the stereogram of the evaporimeter 211 of the common fin tube type extensively utilizing in freezer, a plurality of fins 251 and a plurality of heat-transfer pipe 252, consists of.This fin 251 is laminated with a plurality of with the interval of stipulating, to connect the mode of the through hole arranging at each fin 251, be provided with heat-transfer pipe 252.Fig. 8 B is the major part amplification stereogram of the evaporimeter 211 shown in Fig. 8 A, spreads all over from top to bottom on gravity direction, be provided with by entire surface a plurality of grooves 253 linearity on the surface of fin 251.Fig. 8 C is the amplification profile of the fin 251 shown in Fig. 8 B.Specifically, in the present embodiment, the cross sectional shape of fin 251 is general triangular, and separation A is 0.6mm, and groove depth B is 0.2mm.
For the freezer forming in the above described manner, its action, effect are described below.
First, flowing of cold air in storeroom 206 is described.The Air Blast fan 212 being rotated along with the rotation of motor by the cooled cold air utilization of evaporimeter 211 blows in storeroom 206 from cold gas exhausting outlet 224 forcibly.Now, cold air is blown and is cooled by Air Blast fan 212 by the surperficial mode of evaporimeter 211 with the direction contrary with gravity.The cold air blowing out is cooling by the food being accommodated in receiver 226,227,228.As shown by arrows, the cold air forming after cooling beverage or food sucks from cold air sucting inlet 225 by receiver 228 and the space of the inwall of insulated door 219, gets back to the circulation wind path of evaporimeter 211.
When the insulated door 219 of opening freezer 200 is taken in food etc., the air of the high temperature and humidity of freezer 200 peripheries flow in storeroom 206.Then, after closing insulated door 219, this flows into air in the interior circulation of storeroom 206, when the fin 251 by evaporimeter 211 surperficial, flow into airborne steam and adheres at the surface condensation of fin 251.Afterwards, adjacent condensed water converges each other etc. and grows, and through supercooling state, this condensed water freezes, and usings this icing portion as core, and white needle-like growth, constantly forms frost layer.Occur so-called frost, along with the surperficial frosting at evaporimeter 211, the flowing resistance of air increases, and air quantity declines, and cooling capacity declines, and can not maintain the cooling performance of regulation.
Therefore, in order to remove the frost layer at the Surface Creation of fin 251, when compressor 208 and Air Blast fan 212 are stopped, make to be arranged on Defrost heater 213 energisings of the bottom of evaporimeter 211, utilize free convection, the radiant heat of the high temperature producing from the surface of Defrost heater 213 that frost layer is melted.It is ultraphobic water states more than 160 degree that the defrost water of melting becomes contact angle, significantly reduce with the surperficial contact area of fin 251, so can tumble from the surface of fin 251, along linearity on gravity direction, be provided with the groove 253 (directed) of multiple row, because deadweight easily falls and dewaters from the surface of fin 251.
Like this, according to the structure of present embodiment, by improving the moisture removal property of the lip-deep defrost water of fin 251, can prevent that defrost water itself becomes flowing resistance when again beginning to cool down running, or take remaining defrost water as starting point produce very early frost, can bring the shortening of defrosting time thus, reach the economize on electricity of freezer.
In addition, even if the setting party of the groove 253 of fin 251, to not quite identical with gravity direction, as long as have gravity direction composition, also can improve the moisture removal property of defrost water.
In addition,, in the situation that because the surperficial overlay film generation of the evaporimeters 211 such as use is year in year out to a certain degree deteriorated, there is the groove 253 of gravity direction composition by setting, also can stably obtain the water removal effect of defrost water.
In addition, the surperficial groove 253 of fin 251 arranges by punch process, can form very at a low price and simply thus.
Further, by groove 253 is set, in identical fin profile size, can increase the contact area (heat transfer area) with air, the cooling capacity (heat exchange amount) in the time of can improving cooling running.
As mentioned above, the freezer of present embodiment has: be arranged in storeroom 206, have an evaporimeter 211 of the overlay film that the defrost water that makes to produce on surface easily falls; By the Air Blast fan 212 to storeroom 206 interior air-supplies by the cooled cold air of evaporimeter 211.And, on the surface of the fin 251 of evaporimeter 211 have gravity direction composition direction linearity be provided with multiple row groove 253.The moisture removal property of the defrost water that raising produces on the surface of the fin 251 of evaporimeter 211.Further, due to overlay films such as uses year in year out, occurring deteriorated in the situation that, defrost water also flows in groove 253, so can stably dewater, can prevent from becoming flowing resistance again beginning to cool down when running defrost water self, or it is white as starting point produces very early to take remaining defrost water.The freezer of present embodiment can bring the shortening of defrosting time thus, reaches economize on electricityization.
In addition, the size of the groove 253 representing in present embodiment and cross sectional shape are examples, and the present invention is not limited to this size and cross sectional shape.
In addition, in the present embodiment, the situation that storeroom is set as to cryogenic temperature territory has been described, but also storeroom can be set in to refrigerated storage temperature territory.
(the 4th embodiment)
Fig. 9 is the longitudinal section of the freezer of the 4th embodiment of the present invention.Figure 10 is the longitudinal section of basic structure of major part storeroom of the freezer of the 4th embodiment of the present invention.Figure 11 A is the stereogram of evaporimeter of the freezer of the 4th embodiment of the present invention, and Figure 11 B is the major part amplification stereogram of this evaporimeter, and Figure 11 C is the major part amplification profile of this evaporimeter.In addition, the part identical with the 3rd embodiment marked to identical Reference numeral, detailed.
In Figure 10, at the back side of storeroom 206, be provided with the cooling chamber 229 that generates cold air, between storeroom 206 and cooling chamber 229, be formed with have thermal insulation, for being sent to conveying wind path and the heat insulation cooling chamber partition wall 230 demarcating of storeroom 206 of the cold air of each chamber.In cooling chamber 229, dispose the evaporimeter 231 for example, with the overlay film (water contact angle is super hydrophobic film more than 160 degree) that the defrost water that makes to produce on surface easily falls vertical.In the lower space of the evaporimeter 231 of cooling chamber 229, dispose by forced convertion mode the Air Blast fan 232 to storeroom 204,205,206 air-supplies by the cooled cold air of evaporimeter 231.In addition, lower space at the evaporimeter 231 of cooling chamber 229 is provided with the Defrost heater 213 for defrosting to being attached to the surperficial frost of evaporimeter 231, and then in its underpart, be formed with for accepting defrost water and the drain pan of draining outside storehouse 214 and perforation road 215, outside the storehouse in its downstream, be formed with evaporating pan 216.
At cooling chamber partition wall 230, be provided with: for the cold gas exhausting outlet 224 that the cold air being generated by evaporimeter 231 is utilized Air Blast fan 232 supply with to storeroom 206; With for making to get back at the cold air of storeroom 206 interior circulations the cold air sucting inlet 225 of evaporimeter 231.
In addition, in storeroom 206, dispose and by pull-out mechanism, kept being drawn out of and the receiver of storage food.In the present embodiment, in storeroom 206, dispose three receivers.Specifically, dispose the receiver 226 on upper strata, the receiver 228 of the receiver 227 in middle level, lower floor.
Figure 11 A is the stereogram of the evaporimeter 231 of the common fin tube type extensively utilizing in freezer, a plurality of fins 261 and a plurality of heat-transfer pipe 262, consists of.This fin 261 is laminated with a plurality of with the interval of stipulating, to connect the mode of the through hole arranging at each fin 261, be provided with heat-transfer pipe 262.Figure 11 B is the major part amplification stereogram of the evaporimeter 231 shown in Figure 11 A, spreads all over from top to bottom on gravity direction, be provided with by entire surface a plurality of grooves 263 linearity on the surface of fin 261.Figure 11 C is the amplification profile of the fin 261 shown in Figure 11 B.Specifically, in the present embodiment, the cross sectional shape of fin 261 is general triangular, and separation A is 0.6mm, and groove depth B is 0.2mm.
For the freezer forming in the above described manner, its action, effect are described below.
Flowing of cold air in storeroom 206 is described.By the cooled cold air of evaporimeter 231, utilize the Air Blast fan 232 rotating along with the rotation of motor from cold gas exhausting outlet 224, to blow in storeroom 206 forcibly.Now, cold air is to be blown and to be cooled by Air Blast fan 232 by the surperficial mode of evaporimeter 231 at gravity direction.The cold air blowing out is cooling by the food being accommodated in receiver 226,227,228.As shown by arrows, the cold air forming after cooling beverage or food sucks from cold air sucting inlet 225 by receiver 226 and the space of insulated door inwall, gets back to the circulation wind path of evaporimeter 231.
When the insulated door 219 of opening freezer 200 is taken in food etc., the air of the high temperature and humidity of freezer 200 peripheries flow in storeroom 206.Then, after closing insulated door 219, this flows into air in the interior circulation of storeroom 206, when the fin 261 by evaporimeter 231 surperficial, flow into airborne steam and adheres at the surface condensation of fin 261.Afterwards, adjacent condensed water converges each other etc. and grows, and through supercooling state, this condensed water freezes, and usings this icing portion as core, and white needle-like growth, constantly forms frost layer.Occur so-called frost, along with the surperficial frosting at evaporimeter 231, the flowing resistance of air increases, and air quantity declines, and cooling capacity declines, and can not maintain the cooling performance of regulation.
Therefore, in order to remove the frost layer at the Surface Creation of fin 261, when compressor 208 and Air Blast fan 232 are stopped, make to be arranged on Defrost heater 213 energisings of the bottom of evaporimeter 231, utilize free convection, the radiant heat of the high temperature producing from the surface of Defrost heater 213 that frost layer is melted.It is ultraphobic water states more than 160 degree that the defrost water of melting becomes contact angle, significantly reduce with the surperficial contact area of fin 261, so can tumble from the surface of fin 261, along linearity on gravity direction, be provided with the groove 263 (directed) of multiple row, because deadweight easily falls and dewaters from the surface of fin 261.
Like this, according to the structure of present embodiment, by improving the moisture removal property of the lip-deep defrost water of fin 261, can prevent that defrost water itself becomes flowing resistance when again beginning to cool down running, or take remaining defrost water as starting point produce very early frost, can bring the shortening of defrosting time thus, reach the economize on electricity of freezer.
In addition, even if the setting party of the groove 263 of fin 261, to not quite identical with gravity direction, as long as have gravity direction composition, also can improve the moisture removal property of defrost water.
In addition,, in the situation that because the surperficial overlay film generation of the evaporimeters 231 such as use is year in year out to a certain degree deteriorated, there is the groove 263 of gravity direction composition by setting, also can stably obtain the water removal effect of defrost water.
Further, in the situation that just in case cause for some reason defrost water to stay the surperficial of fin 261, by blowing in the identical direction of the deadweight direction with defrost water (direction with gravity direction composition) when again beginning to cool down running, can the defrost water staying be removed with air-supply power.
In addition, the surperficial groove 263 of fin 261 arranges by punch process, can form very at a low price and simply thus.
Further, by groove 263 is set, in identical fin profile size, can increase the contact area (heat transfer area) with air, the cooling capacity (heat exchange amount) in the time of can improving cooling running.
As mentioned above, the freezer of present embodiment has: be arranged in storeroom 206, have an evaporimeter 231 of the overlay film that the defrost water that makes to produce on surface easily falls; By the Air Blast fan 232 to storeroom 206 interior air-supplies by the cooled cold air of evaporimeter 231.And, on the surface of the fin 261 of evaporimeter 231 have gravity direction composition direction linearity be provided with multiple row groove 263.The moisture removal property of the defrost water that raising produces on the surface of the fin 261 of evaporimeter 231.Further, occurring deteriorated in the situation that due to overlay films such as uses year in year out, defrost water also flows in groove 263, so can stably dewater.Further, Air Blast fan 232 is blown in the direction with gravity direction composition, thus, in the situation that just in case cause for some reason defrost water to stay the surperficial of fin 261, by blowing in the identical direction of the deadweight direction with defrost water (direction with gravity direction composition) when again beginning to cool down running, can the defrost water staying be removed with air-supply power.Thus, the freezer of present embodiment, can prevent from becoming flowing resistance again beginning to cool down when running defrost water self, or it is white as starting point produces very early to take remaining defrost water, and the shortening that can bring thus defrosting time, reaches economize on electricityization.
In addition, the size of the groove 263 representing in present embodiment and cross sectional shape are examples, and the present invention is not limited to this size and cross sectional shape.
(the 5th embodiment)
Figure 12 is the longitudinal section of the freezer of the 5th embodiment of the present invention.Figure 13 is the longitudinal section of basic structure of major part storeroom of the freezer of the 5th embodiment of the present invention.Figure 14 A is the stereogram of evaporimeter of the freezer of the 5th embodiment of the present invention, and Figure 14 B is the major part amplification stereogram of this evaporimeter, and Figure 14 C is the major part amplification profile of this evaporimeter.In addition, the part identical with the 3rd embodiment marked to identical Reference numeral, detailed.
In Figure 13, at the upper surface of storeroom 206, be provided with the cooling chamber 239 that generates cold air, between storeroom 206 and cooling chamber 239, be formed with have thermal insulation, for being sent to conveying wind path and the heat insulation cooling chamber partition wall 240 demarcating of storeroom 206 of the cold air of each chamber.In cooling chamber 239, in the mode that tilts a little from level (for example, to inboard 5 degree that tilt of storeroom 206), dispose evaporimeter 241, this evaporimeter 241 has the overlay film (for example water contact angle is super hydrophobic film more than 160 degree) that the defrost water that makes to produce on surface easily falls.At the backside space of the evaporimeter 241 of cooling chamber 239, dispose by forced convertion mode the Air Blast fan 242 to storeroom 204,205,206 air-supplies by the cooled cold air of evaporimeter 241.In addition, in the bottom of the evaporimeter 241 of cooling chamber 239, be provided with the Defrost heater 213 for defrosting to being attached to the surperficial frost of evaporimeter 241.
At cooling chamber partition wall 240, be provided with: for the cold gas exhausting outlet 224 that the cold air being generated by evaporimeter 241 is utilized Air Blast fan 242 supply with to storeroom 206; With for making to get back at the cold air of storeroom 206 interior circulations the cold air sucting inlet 225 of evaporimeter 241.
In addition, in storeroom 206, dispose and by pull-out mechanism, kept being drawn out of and the receiver of storage food.In the present embodiment, in storeroom 206, dispose three receivers.Specifically, dispose the receiver 226 on upper strata, the receiver 228 of the receiver 227 in middle level, lower floor.
Figure 14 A is the evaporimeter 241 of the common fin tube type extensively utilizing in freezer, a plurality of fins 271 and a plurality of heat-transfer pipe 272, consists of.This fin 271 is laminated with a plurality of with the interval of stipulating, to connect the mode of the through hole arranging at each fin 271, be provided with heat-transfer pipe 272.On the surface of fin 271, spread all over from top to bottom and on gravity direction, be provided with by entire surface a plurality of grooves 273 linearity.Figure 14 C is the amplification profile of the fin 271 shown in Figure 14 B.Specifically, in the present embodiment, the cross sectional shape of fin 271 is general triangular, and separation A is 0.6mm, and groove depth B is 0.2mm.
For the freezer forming in the above described manner, its action, effect are described below.
First, flowing of cold air in storeroom 206 is described.By the cooled cold air of evaporimeter 241, utilize the Air Blast fan 242 rotating along with the rotation of motor from cold gas exhausting outlet 224, to blow in storeroom 206 forcibly.Now, cold air is to be blown and to be cooled by Air Blast fan 242 by the surperficial mode of evaporimeter 241 in the direction with gravity direction composition.The cold air blowing out is cooling by the food being accommodated in receiver 226,227,228.As shown by arrows, the cold air forming after cooling beverage or food sucks from cold air sucting inlet 225 by receiver 226 and the space of insulated door 219 inwalls, gets back to the circulation wind path of evaporimeter 241.
When the insulated door 219 of opening freezer 200 is taken in food etc., the air of the high temperature and humidity of freezer 200 peripheries flow in storeroom 206.Then, after closing insulated door 219, this flows into air in the interior circulation of storeroom 206, when the fin 271 by evaporimeter 241 surperficial, flow into airborne steam and adheres at the surface condensation of fin 271.Afterwards, adjacent condensed water converges each other etc. and grows, and through supercooling state, this condensed water freezes, and usings this icing portion as core, and white needle-like growth, constantly forms frost layer.Occur so-called frost, along with the surperficial frosting at evaporimeter 241, the flowing resistance of air increases, and air quantity declines, and cooling capacity declines, and can not maintain the cooling performance of regulation.
Therefore, in order to remove the frost layer at the Surface Creation of fin 271, when compressor 208 and Air Blast fan 242 are stopped, make to be arranged on Defrost heater 213 energisings of the bottom of evaporimeter 241, utilize free convection, the radiant heat of the high temperature producing from the surface of Defrost heater 213 that frost layer is melted.It is ultraphobic water states more than 160 degree that the defrost water of melting becomes contact angle, significantly reduce with the surperficial contact area of fin 271, so can tumble from the surface of fin 271, along linearity on gravity direction, be provided with the groove 273 (directed) of multiple row, because deadweight easily falls and dewaters from the surface of fin 271.
Like this, according to the structure of present embodiment, by improving the moisture removal property of the lip-deep defrost water of fin 271, can prevent that defrost water itself becomes flowing resistance when again beginning to cool down running, or take remaining defrost water as starting point produce very early frost, can bring the shortening of defrosting time thus, reach the economize on electricity of freezer.
In addition, even if the setting party of the groove 273 of fin 271, to not quite identical with gravity direction, as long as have gravity direction composition, also can improve the moisture removal property of defrost water.
In addition,, in the situation that because the surperficial overlay film generation of the evaporimeters 241 such as use is year in year out to a certain degree deteriorated, there is the groove 273 of gravity direction composition by setting, also can stably obtain the water removal effect of defrost water.
Further, in the situation that just in case cause for some reason defrost water to stay the surperficial of fin 271, by blowing in the identical direction of the deadweight direction with defrost water (direction with gravity direction composition) when again beginning to cool down running, can the defrost water staying be removed with air-supply power.
In addition, the surperficial groove 273 of fin 271 arranges by punch process, can form very at a low price and simply thus.
Further, by fin 271, groove 273 being set, in identical fin profile size, can increase the contact area (heat transfer area) with air, the cooling capacity (heat exchange amount) in the time of can improving cooling running.
As mentioned above, the freezer of present embodiment has: be arranged in storeroom 206, have an evaporimeter 241 of the overlay film that the defrost water that makes to produce on surface easily falls; By the Air Blast fan 242 to storeroom 206 interior air-supplies by the cooled cold air of evaporimeter 241.And, on the surface of the fin 271 of evaporimeter 241 have gravity direction composition direction linearity be provided with multiple row groove 273.The moisture removal property of the defrost water that raising produces on the surface of the fin 271 of evaporimeter 241.Further, occurring deteriorated in the situation that due to overlay films such as uses year in year out, defrost water also flows in groove 273, so can stably dewater.Further, Air Blast fan 242 is blown in the direction with gravity direction composition, thus, in the situation that just in case cause for some reason defrost water to stay the surperficial of fin 271, by blowing in the identical direction of the deadweight direction with defrost water (direction with gravity direction composition) when again beginning to cool down running, can the defrost water staying be removed with air-supply power.Therefore, the freezer of present embodiment, can prevent from becoming flowing resistance again beginning to cool down when running defrost water self, or it is white as starting point produces very early to take remaining defrost water, and the shortening that can bring thus defrosting time, reaches economize on electricityization.
In addition, the size of the groove 273 representing in present embodiment and cross sectional shape are examples, and the present invention is not limited to this size and cross sectional shape.
Freezer of the present invention comprises: be arranged in storeroom, have that the condensed water that makes to produce on surface easily disperses from surface or the evaporimeter of the overlay film that falls; With by the Air Blast fan of being blown to storeroom by the cold air after evaporator cools.Air Blast fan is blown to gravity direction, has thus the direction composition identical with the deadweight of condensed water, so promote condensed water dispersing from evaporator surface.Further, at low air quantity or overlay film, also can stably make condensed water disperse from the surface of evaporimeter deteriorated in the situation that, can reduce the frosting degree to evaporimeter, suppress the decline of cooling effectiveness, reach economize on electricityization.
Freezer of the present invention comprises: be arranged in storeroom, have that the condensed water that makes to produce on surface easily disperses from surface or the evaporimeter of the overlay film that falls; With by the Air Blast fan of being blown to storeroom by the cold air after evaporator cools.Air Blast fan, to the direction air-supply with gravity direction composition, even if the air supply direction of Air Blast fan and gravity direction are not quite identical, as long as have gravity direction composition, also can access the facilitation effect of dispersing of the condensed water producing in evaporimeter.
In freezer of the present invention, on the surface of evaporimeter, having water contact angle is super hydrophobic films more than 160 degree, can improve more reliably condensed water from the surperficial effect of dispersing of evaporimeter.
In freezer of the present invention, Air Blast fan is configured in to the position more closer to the top than evaporimeter, so Air Blast fan is not vulnerable to the impact of the condensed water that disperses, can improves the free degree of the configuration structure of Air Blast fan.
In freezer of the present invention, Air Blast fan is configured in than evaporimeter position more on the lower, can improves the free degree of the air supply direction of Air Blast fan.
In freezer of the present invention, in storeroom, be refrigerated storage temperature territory, in not being vulnerable to the environment of ice, frost impact, can improve more reliably condensed water from the surperficial effect of dispersing of evaporimeter.
In freezer of the present invention, in storeroom, be cryogenic temperature territory, in being subject to the environment of ice, frost impact, also can improve more reliably condensed water from the surperficial effect of dispersing of evaporimeter.
Freezer of the present invention comprises: be arranged in storeroom, have the evaporimeter of the overlay film that the defrost water that makes to produce on surface easily falls from surface; With by the Air Blast fan of being blown to storeroom by the cold air after evaporator cools.Evaporimeter has fin on surface, on the surface of this fin, is provided with groove, can improve thus the moisture removal property of the defrost water producing on the surface of evaporimeter.Further, in the situation that overlay film is deteriorated, defrost water also flows in groove, so can stably dewater, can bring the shortening of defrosting time, reaches economize on electricityization.
In freezer of the present invention, groove is set in the direction with gravity direction composition linearity, defrost water flows and because deadweight falls, so can more stably improve except water-based in groove.
In freezer of the present invention, be provided with multiple row groove, can remove more reliably defrost water from the surface integral of evaporimeter.
In freezer of the present invention, by punch process, groove is set, can forms very at a low price and simply.
In freezer of the present invention, on the surface of evaporimeter, having water contact angle is super hydrophobic films more than 160 degree, can from the surface of evaporimeter, remove defrost water more reliably.
In freezer of the present invention, Air Blast fan has the direction air-supply of gravity direction composition, in the situation that just in case defrost water is stayed the surperficial of evaporimeter, when again beginning to cool down running, in the identical direction of the deadweight direction with defrost water, blow, can remove the defrost water staying by air-supply power thus.
In industry, utilize possibility
As previously discussed, the air supply method of the Air Blast fan of freezer of the present invention, can be applied in home-use or industrial freezer or vegetables private library, goods showing cabinet.
Reference numeral explanation
1 freezer casing
2 refrigerating chambers
3 vegetable compartment
4 upper strata refrigerating chambers
5 lower floor's refrigerating chambers
6 evaporator room
7 evaporimeters
8 Air Blast fans
9 cold air streams
100,200 freezers
101,201 heat insulating boxes
102,202 outer containers
103,203 interior casees
104,105,106,204,205,206 storerooms
107,207 Machine Rooms
108,208 compressors
109,129,209,229,239 cooling chambers
110,130,210,230,240 cooling chamber partition walls
111,131,211,231,241 evaporimeters
112,132,212,232,242 Air Blast fans
114,214 drain pans
115,215 connect road
116,216 evaporating pans
117,118,119,217,218,219 insulated doors
120,121,220,221 heat insulation partition walls
124,224 cold gas exhausting outlets
125,225 cold air sucting inlets
126,127,128,226,227,228 receivers
213 Defrost heaters
251,261,271 fins
252,262,272 heat-transfer pipes
253,263,273 grooves
Claims (13)
1. a freezer, is characterized in that, comprising:
Be arranged in storeroom, have that the condensed water that makes to produce on surface easily disperses from described surface or the evaporimeter of the overlay film that falls; With
The Air Blast fan that cold air by after described evaporator cools is blown to described storeroom, wherein,
Described Air Blast fan is blown to gravity direction.
2. a freezer, is characterized in that, comprising:
Be arranged in storeroom, have that the condensed water that makes to produce on surface easily disperses from described surface or the evaporimeter of the overlay film that falls; With
The Air Blast fan that cold air by after described evaporator cools is blown to described storeroom, wherein,
Described Air Blast fan is to the direction air-supply with gravity direction composition.
3. freezer as claimed in claim 1 or 2, is characterized in that:
On the surface of described evaporimeter, having water contact angle is super hydrophobic films more than 160 degree.
4. freezer as claimed in claim 1 or 2, is characterized in that:
Described Air Blast fan is configured in than the top side's of evaporimeter position.
5. freezer as claimed in claim 1 or 2, is characterized in that:
Described Air Blast fan is configured in than evaporimeter position on the lower.
6. freezer as claimed in claim 1 or 2, is characterized in that:
In described storeroom, it is refrigerated storage temperature territory.
7. freezer as claimed in claim 1 or 2, is characterized in that:
In described storeroom, it is cryogenic temperature territory.
8. a freezer, is characterized in that, comprising:
Be arranged in storeroom, there is the evaporimeter of the overlay film that the defrost water that makes to produce on surface easily falls from described surface; With
The Air Blast fan that cold air by after described evaporator cools is blown to described storeroom, wherein,
Described evaporimeter has fin on surface, on the surface of the fin of described evaporimeter, is provided with groove.
9. freezer as claimed in claim 8, is characterized in that:
Described groove arranges in the direction with gravity direction composition linearity.
10. freezer as claimed in claim 8 or 9, is characterized in that:
Described groove is provided with multiple row.
11. freezers as claimed in claim 8 or 9, is characterized in that:
Described groove arranges by punch process.
12. freezers as claimed in claim 8 or 9, is characterized in that:
On the surface of described evaporimeter, having water contact angle is super hydrophobic films more than 160 degree.
13. freezers as claimed in claim 8 or 9, is characterized in that:
Described Air Blast fan has the direction air-supply of gravity direction composition.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-269689 | 2011-12-09 | ||
| JP2011269689A JP2013120047A (en) | 2011-12-09 | 2011-12-09 | Refrigerator |
| JP2012023602A JP6035506B2 (en) | 2012-02-07 | 2012-02-07 | refrigerator |
| JP2012-023602 | 2012-02-07 | ||
| PCT/JP2012/007759 WO2013084473A1 (en) | 2011-12-09 | 2012-12-04 | Refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103975206A true CN103975206A (en) | 2014-08-06 |
Family
ID=48573864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280060717.4A Pending CN103975206A (en) | 2011-12-09 | 2012-12-04 | Refrigerator |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2789939A4 (en) |
| CN (1) | CN103975206A (en) |
| WO (1) | WO2013084473A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094924A (en) * | 2018-01-31 | 2019-08-06 | 日立空调·家用电器株式会社 | Refrigerator |
| CN111322800A (en) * | 2018-12-17 | 2020-06-23 | 富士电机株式会社 | Showcase and defrosting control method thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6391969B2 (en) * | 2014-03-31 | 2018-09-19 | 三菱重工サーマルシステムズ株式会社 | Heat exchanger and air conditioner |
| DE202015103440U1 (en) | 2015-06-30 | 2016-10-04 | Akg Thermotechnik International Gmbh & Co. Kg | heat exchangers |
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| JPH0682189A (en) * | 1992-09-01 | 1994-03-22 | Sanyo Electric Co Ltd | Heat exchanger |
| JP2001056174A (en) * | 1999-06-11 | 2001-02-27 | Sanyo Electric Co Ltd | Refrigerator |
| JP2002071295A (en) * | 2000-08-30 | 2002-03-08 | Hitachi Ltd | Evaporator |
| CN1793759A (en) * | 2004-12-22 | 2006-06-28 | 三星电子株式会社 | Refrigerator and manufacturing method of the same |
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| JPS4915978Y1 (en) * | 1969-05-30 | 1974-04-22 | ||
| JPS5582277A (en) * | 1978-12-15 | 1980-06-20 | Tokyo Shibaura Electric Co | Cold storage |
| JPS593275Y2 (en) * | 1979-10-12 | 1984-01-28 | サンデン株式会社 | Heat exchanger |
| JP3184775B2 (en) * | 1997-02-20 | 2001-07-09 | 大宇電子株式會▲社▼ | Refrigerator with a function of discharging cool air from doors using an air curtain generator |
| US6038880A (en) * | 1997-06-06 | 2000-03-21 | Daewoo Electronics Co., Ltd. | Refrigerator having a device for generating an air curtain |
| JPH112497A (en) * | 1997-06-13 | 1999-01-06 | Furukawa Electric Co Ltd:The | Heat exchanger |
| JP2001248951A (en) | 2000-03-03 | 2001-09-14 | Hitachi Ltd | Refrigerator, and manufacturing method for evaporator for refrigerator chamber for use in former |
| AU2003284696A1 (en) * | 2002-11-26 | 2004-06-18 | Daikin Industries, Ltd. | Heat exchanger for air and freezer device |
| KR100896264B1 (en) * | 2003-01-17 | 2009-05-08 | 삼성전자주식회사 | A Refrigerator and A apparatus for refrigerating |
| WO2006013762A1 (en) * | 2004-08-04 | 2006-02-09 | Hoshizaki Denki Kabushiki Kaisha | Cooling storage |
| JP2010175131A (en) | 2009-01-29 | 2010-08-12 | Mitsubishi Electric Corp | Heat exchange device, refrigerating air conditioner and method of manufacturing heat exchanger |
| KR101637443B1 (en) * | 2009-07-15 | 2016-07-07 | 엘지전자 주식회사 | Defristing heater for refrigerator and refrigerator having the same |
-
2012
- 2012-12-04 CN CN201280060717.4A patent/CN103975206A/en active Pending
- 2012-12-04 EP EP12855778.2A patent/EP2789939A4/en not_active Withdrawn
- 2012-12-04 WO PCT/JP2012/007759 patent/WO2013084473A1/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0682189A (en) * | 1992-09-01 | 1994-03-22 | Sanyo Electric Co Ltd | Heat exchanger |
| JP2001056174A (en) * | 1999-06-11 | 2001-02-27 | Sanyo Electric Co Ltd | Refrigerator |
| JP2002071295A (en) * | 2000-08-30 | 2002-03-08 | Hitachi Ltd | Evaporator |
| CN1793759A (en) * | 2004-12-22 | 2006-06-28 | 三星电子株式会社 | Refrigerator and manufacturing method of the same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094924A (en) * | 2018-01-31 | 2019-08-06 | 日立空调·家用电器株式会社 | Refrigerator |
| CN111322800A (en) * | 2018-12-17 | 2020-06-23 | 富士电机株式会社 | Showcase and defrosting control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013084473A1 (en) | 2013-06-13 |
| EP2789939A4 (en) | 2015-07-15 |
| EP2789939A1 (en) | 2014-10-15 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140806 |