CN206755688U - One kind refrigeration return air defrost special evaporator and refrigerator - Google Patents
One kind refrigeration return air defrost special evaporator and refrigerator Download PDFInfo
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- CN206755688U CN206755688U CN201720263832.1U CN201720263832U CN206755688U CN 206755688 U CN206755688 U CN 206755688U CN 201720263832 U CN201720263832 U CN 201720263832U CN 206755688 U CN206755688 U CN 206755688U
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- return air
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- defrost
- evaporator
- refrigerator
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Abstract
It the utility model is related to refrigerator art, there is provided one kind refrigeration return air defrost special evaporator and refrigerator.Wherein, refrigerate return air defrost special evaporator, be included in the coil pipe of coiling in plane, and be distributed in the coil pipe be on heat-conducting piece, closeness gradually reduces on return air direction of the heat-conducting piece along refrigerating chamber.Refrigeration return air defrost special evaporator of the present utility model, because closeness gradually reduces on return air direction of the heat-conducting piece along refrigerating chamber, so as to avoid evaporator heat exchange loss of energy, the effect of return air defrost is improved on the whole.Also, because frost layer is mainly formed in close to the position of return air inlet, so as to reduce the possibility that evaporator surface produces stupid ice.
Description
Technical field
It the utility model is related to refrigerator art, more particularly to a kind of refrigeration return air defrost special evaporator and refrigerator.
Background technology
With socio-economic development, living standards of the people step up, gradual to the requirement of refrigerator storage food freshness
Increase.Wherein, multi-door refrigerator is due to that can meet different food memory requirements, so as to be increasingly becoming the newly emerging force in market.
By taking the multi-door wind cooling refrigerator of single system as an example, it includes refrigerating chamber 1 and refrigerating chamber 3, or even also includes temperature-changing chamber 2.Its
In, the structure of the evaporator in refrigerating chamber 1 uses for reference the structure of evaporator in refrigerating chamber 3 mostly, namely base of evaporator fin is close
Degree is minimum, and up gradually increase, top fin density are maximum.The evaporator of this kind of structure, its overall heat exchange performance are lost, led
Cause return air defrost effect poor.
In addition, the structure of fin " lower thin close " causes frost layer distributing position to move up on evaporator.And with the one of refrigerating chamber 1
As exemplified by structure, evaporator is arranged on the rear side of refrigerating chamber 1, and the bottom of refrigerating chamber 1 is provided with return air inlet close to evaporator position.From
And return air first passes through the bottom of evaporator and is flowed towards evaporator top.Due to temperature when return air is at the top of base of evaporator flow direction
Degree gradually reduces so that the intensive top defrost effect of frost layer is poor, easily produces stupid ice.
Utility model content
The utility model is intended at least solve one of technical problem present in prior art or correlation technique.
One of purpose of the present utility model is：A kind of refrigeration return air defrost special evaporator and refrigerator are provided, solved
The evaporator heat exchange performance of refrigerating chamber, which is lost, in the prior art causes return air defrost effect poor, and easily production at the top of evaporator
The problem of raw stupid ice.
In order to realize the purpose, the utility model provides a kind of refrigeration return air defrost special evaporator, is included in plane
The coil pipe of interior coiling, and be distributed in the coil pipe be on heat-conducting piece, on return air direction of the heat-conducting piece along refrigerating chamber
Closeness gradually reduces.
The technical solution of the utility model has advantages below：Refrigeration return air defrost special evaporator of the present utility model,
Because closeness gradually reduces on return air direction of the heat-conducting piece along refrigerating chamber, so as to avoid the damage of evaporator heat exchange performance
Lose, improve the effect of return air defrost on the whole.Also, because frost layer is mainly formed in close to the position of return air inlet, so as to
To reduce the possibility that evaporator surface produces stupid ice.
Preferably, the heat-conducting piece is fin, and along on the return air direction, the fin ratio of the fin gradually reduces.
Preferably, the heat-conducting piece is more one metal wires parallel to each other, along on the return air direction, the adjacent gold
Interval between category silk gradually increases.
Preferably, the both sides of the coil pipe are respectively and fixedly provided with the wire.
Preferably, the cross section of the wire in Long Circle to cause the wire that there is flat sidewall, it is and described
Wire is fixed by the flat sidewall and the coil pipe.
Preferably, the coil pipe uses metal material, and the first electrodeposited coating is provided with the coil pipe, on the wire
Provided with the second electrodeposited coating.
Preferably, the first hydrophobic layer is provided with first electrodeposited coating, second is provided with second electrodeposited coating and is dredged
Water layer.
The utility model also provides a kind of refrigerator, and above-mentioned refrigeration return air defrost dedicated steaming is provided with the refrigerating chamber of refrigerator
Send out device.
Preferably, the refrigerating chamber includes being used for the refrigeration chamber for installing the refrigeration return air defrost special evaporator, with
And for accommodating the accommodating chamber of food；Circulating fan is provided with the refrigerating chamber so that the refrigeration chamber and described
Convection current is formed between accommodating chamber.
Preferably, the refrigeration chamber is located at the rear side of the refrigerating chamber；And the bottom of the refrigeration chamber is provided with back
Air port, top are provided with air outlet, and the air outlet is pointed in the return air direction from the return air inlet.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the multi-door wind cooling refrigerator of single system of prior art；
Fig. 2 is the refrigeration return air defrost special evaporator of embodiment and the structural representation of blower fan；
In figure：1st, refrigerating chamber；2nd, temperature-changing chamber；3rd, refrigerating chamber；4th, circulating fan；5th, evaporator.
Embodiment
In order to be more clearly understood that above-mentioned purpose of the present utility model, feature and advantage, below in conjunction with the accompanying drawings and tool
The utility model is further described in detail body embodiment.It should be noted that in the case where not conflicting, this Shen
The feature in embodiment and embodiment please can be mutually combined.
, it is necessary to explanation in description of the present utility model, term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than instruction
Or imply that signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore be not understood that
For to limitation of the present utility model.In addition, term " first ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that
Instruction implies relative importance.
, it is necessary to illustrate in description of the present utility model, unless otherwise clearly defined and limited, term " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary.For this
For the those of ordinary skill in field, concrete meaning of the above-mentioned term in the utility model can be understood with concrete condition.
Fig. 2 is referred to, the refrigeration return air defrost special evaporator 5 of the present embodiment, is included in the coil pipe coiled in plane, with
And be distributed in the coil pipe be on heat-conducting piece, closeness gradually reduces on return air direction of the heat-conducting piece along refrigerating chamber 1.
Assuming that the refrigeration return air defrost special evaporator 5 in Fig. 2 is arranged on refrigerator according to present orientation, then heat conduction
Part gradually reduces along direction closeness straight up, and return air direction is exactly the direction straight up that arrow represents.
The refrigeration return air defrost special evaporator 5 of the present embodiment, due to close on return air direction of the heat-conducting piece along refrigerating chamber 1
Intensity gradually reduces, and so as to avoid the heat-exchange performance loss of energy of evaporator 5, improves the effect of return air defrost on the whole.And
And because frost layer is mainly formed in close to the position of return air inlet, so as to reduce the possibility that the surface of evaporator 5 produces stupid ice
Property.
One of which situation, heat-conducting piece are fin, and the refrigeration return air defrost special evaporator 5 for obtaining the present embodiment is fin
Evaporator 5.In the case of this kind, as long as gradually being reduced along the fin ratio of the fin on the return air direction, it is possible to so that
The exchange capability of heat of evaporator 5 gradually weakens on along return air direction.
Specifically, assume that return air direction remains as from bottom to up.So, by the bottom fin gap of evaporator 5 from 20- before
15mm is reduced to 3-5mm or so, and fin amount increases 2-3 times or so.Because the bottom of evaporator 5 contacts with return air at first, air with
The temperature difference is maximum between fin, and increase fin density can dramatically increase heat exchange amount herein.In addition, reduce the top wing of evaporator 5
Piece density, fin density increase to 22-16mm or so from 5-8mm or so.Because the top return air defrost effect of evaporator 5 is poor,
So as to which the smaller top fin density of evaporator 5 can reduce the possibility of the stupid ice of the surface of evaporator 5 generation.
Second of situation, heat-conducting piece are more one metal wires parallel to each other, such as steel wire, and the refrigeration for obtaining the present embodiment is returned
Weathering frost special evaporator 5 is wire-tube evaporator 5.In the case of this kind, along on the return air direction, the adjacent wire it
Between interval gradually increase, it is possible to so that gradually weakening along the exchange capability of heat of evaporator 5 on return air direction.
In Fig. 2, many parallel wires, including two kinds of length are distributed with coil pipe.Longer wire is from coil pipe
Top extend to the bottom of coil pipe, and shorter wire is only distributed only over the bottom of coil pipe, so as to obtain wire in disk
Distribution " under close upper dredge " on pipe.
When evaporator 5 is wire-tube evaporator 5, the both sides of preferably described coil pipe are respectively and fixedly provided with the wire, with increase
The overall heat exchange ability of evaporator 5.Also, it is preferred that the cross section of wire in Long Circle to cause the wire that there is plane
Side wall, and the wire is fixed by the flat sidewall and the coil pipe.Due to wire by the flat sidewall with
The coil pipe is fixed, so as to add the contact area between coil pipe and wire so that and wire firmly installs degree, with
And the heat conduction efficiency between coil pipe and wire is improved.
Coil pipe uses metal material, such as coil pipe can be steel pipe, copper pipe or aluminum pipe, and first is provided with the coil pipe
Electrodeposited coating, the wire are provided with the second electrodeposited coating；The first hydrophobic layer, second electricity are provided with first electrodeposited coating
The second hydrophobic layer is provided with coating.
Wherein, electrodeposited coating not only has antiseptic effect, and also has good heat conductivility.Thus, inside coil pipe
Cold effectively can outwards be passed to by the first electrodeposited coating and the second electrodeposited coating, and then ensure the refrigeration effect of wire-tube evaporator 5
Fruit.Also, the first electrodeposited coating and the second electrodeposited coating can use different plating materials according to specific needs.Also, due to not
The electrodeposited coating of same material often has different colours, so as to be decorated to refrigerator.
In addition, in order to reduce the frosting on wire-tube evaporator 5, it is hydrophobic first can be provided with the first electrodeposited coating
Layer, is provided with the second hydrophobic layer on the second electrodeposited coating.By the setting of above-mentioned hydrophobic layer, the table of wire-tube evaporator 5 can be caused
Face is not easy condensate, and then prevents the formation of frost.
On the basis of the above, the present embodiment also provides a kind of refrigerator, and above-mentioned refrigeration is provided with the refrigerating chamber 1 of refrigerator and is returned
Weathering frost special evaporator 5.
Wherein, the refrigerating chamber 1 includes being used for the refrigeration chamber for installing the refrigeration return air defrost special evaporator 5, with
And for accommodating the accommodating chamber of food；Circulating fan 4 is provided with the refrigerating chamber 1, refers to Fig. 2 so that the system
Convection current is formed between cold chamber and the accommodating chamber.
Further, the refrigeration chamber is located at the rear side of the refrigerating chamber 1；And the bottom of the refrigeration chamber is provided with
Return air inlet, top are provided with air outlet, and the air outlet is pointed in the return air direction from the return air inlet.
When carrying out defrost to refrigeration return air defrost special evaporator 5, evaporator 5 stops refrigeration；Circulating fan 4 to accommodate
High temperature air in chamber is flowed into refrigeration chamber from return air inlet, after high temperature air enters in refrigeration chamber, is first returned to close
The part of evaporator 5 in air port carries out defrost, obtains the air of temperature reduction；Afterwards, air flows to air outlet along evaporator 5,
And the frost on the surface of evaporator 5 to flowing through carries out defrost.Air flows in the chamber that freezes and the mistake of defrost is carried out to evaporator 5
Journey, its temperature constantly reduce, and so as to which the temperature of the air finally come out from air outlet is relatively low, meet fresh-keeping requirement.It follows that
The refrigerator of the present embodiment, it does not interfere with the fresh-keeping of food in refrigerating chamber 1 during defrost yet.
It should be noted that being provided with the refrigerator of above-mentioned refrigeration return air defrost special evaporator 5 in the present embodiment, it both may be used
To be single system refrigerator, dual system refrigerator can also be, it might even be possible to be three system refrigerators etc..
Embodiment of above is merely to illustrate the utility model, rather than to limitation of the present utility model.Although with reference to implementation
The utility model is described in detail example, it will be understood by those within the art that, to technology of the present utility model
Scheme carries out various combinations, modification or equivalent substitution, all should without departure from the spirit and scope of technical solutions of the utility model
Cover among right of the present utility model.
Claims (10)
1. one kind refrigeration return air defrost special evaporator, is included in the coil pipe of coiling in plane, and be distributed in the coil pipe to be
On heat-conducting piece, it is characterised in that closeness gradually reduces on return air direction of the heat-conducting piece along refrigerating chamber.
2. the refrigeration return air defrost special evaporator according to claim 1, it is characterised in that the heat-conducting piece is wing
Piece, along on the return air direction, the fin ratio of the fin gradually reduces.
3. the refrigeration return air defrost special evaporator according to claim 1, it is characterised in that the heat-conducting piece is mutual
Parallel more one metal wires, along on the return air direction, the interval between the adjacent wire gradually increases.
4. the refrigeration return air defrost special evaporator according to claim 3, it is characterised in that the both sides of the coil pipe
It is respectively and fixedly provided with the wire.
5. the refrigeration return air defrost special evaporator according to claim 3, it is characterised in that the horizontal stroke of the wire
Section is in Long Circle to cause the wire to have flat sidewall, and the wire passes through the flat sidewall and the disk
Pipe is fixed.
6. the refrigeration return air defrost special evaporator according to claim 3, it is characterised in that the coil pipe is using gold
Belong to material, and the first electrodeposited coating is provided with the coil pipe, the wire is provided with the second electrodeposited coating.
7. the refrigeration return air defrost special evaporator according to claim 6, it is characterised in that first electrodeposited coating
On be provided with the first hydrophobic layer, be provided with the second hydrophobic layer on second electrodeposited coating.
8. a kind of refrigerator, it is characterised in that be provided with the refrigerating chamber of refrigerator in claim 1 to 7 described in any one
Refrigerate return air defrost special evaporator.
9. refrigerator according to claim 8, it is characterised in that the refrigerating chamber includes being used to install the refrigeration return air
The refrigeration chamber of white special evaporator, and for accommodating the accommodating chamber of food；Circulated air is provided with the refrigerating chamber
Machine so that form convection current between the refrigeration chamber and the accommodating chamber.
10. refrigerator according to claim 9, it is characterised in that the refrigeration chamber is located at the rear side of the refrigerating chamber；And
The bottom of the refrigeration chamber is provided with return air inlet, and top is provided with air outlet, and the return air direction is pointed to from the return air inlet
The air outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720263832.1U CN206755688U (en) | 2017-03-17 | 2017-03-17 | One kind refrigeration return air defrost special evaporator and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720263832.1U CN206755688U (en) | 2017-03-17 | 2017-03-17 | One kind refrigeration return air defrost special evaporator and refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206755688U true CN206755688U (en) | 2017-12-15 |
Family
ID=60610390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720263832.1U Active CN206755688U (en) | 2017-03-17 | 2017-03-17 | One kind refrigeration return air defrost special evaporator and refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206755688U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612186A (en) * | 2018-12-05 | 2019-04-12 | 青岛海尔股份有限公司 | Wind cooling refrigerator |
| CN112611154A (en) * | 2020-12-17 | 2021-04-06 | 西安交通大学 | Parallel double-system refrigerator and defrosting control method |
| CN114198967A (en) * | 2020-09-18 | 2022-03-18 | 合肥美的电冰箱有限公司 | Refrigerator compartment and refrigerator |
-
2017
- 2017-03-17 CN CN201720263832.1U patent/CN206755688U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612186A (en) * | 2018-12-05 | 2019-04-12 | 青岛海尔股份有限公司 | Wind cooling refrigerator |
| CN109612186B (en) * | 2018-12-05 | 2021-07-23 | 海尔智家股份有限公司 | Air-cooled refrigerator |
| CN114198967A (en) * | 2020-09-18 | 2022-03-18 | 合肥美的电冰箱有限公司 | Refrigerator compartment and refrigerator |
| CN114198967B (en) * | 2020-09-18 | 2023-11-10 | 东芝家用电器制造（南海）有限公司 | Refrigerator compartment and refrigerator |
| CN112611154A (en) * | 2020-12-17 | 2021-04-06 | 西安交通大学 | Parallel double-system refrigerator and defrosting control method |
| CN112611154B (en) * | 2020-12-17 | 2021-10-08 | 西安交通大学 | Parallel double-system refrigerator and defrosting control method |
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