CN204006894U - Refrigerator - Google Patents
Refrigerator Download PDFInfo
- Publication number
- CN204006894U CN204006894U CN201420286907.4U CN201420286907U CN204006894U CN 204006894 U CN204006894 U CN 204006894U CN 201420286907 U CN201420286907 U CN 201420286907U CN 204006894 U CN204006894 U CN 204006894U
- Authority
- CN
- China
- Prior art keywords
- refrigerator
- heater
- evaporimeter
- air
- air inlet
- 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.)
- Expired - Lifetime
Links
- 238000010257 thawing Methods 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Defrosting Systems (AREA)
Abstract
The utility model provides a kind of refrigerator, at least one of refrigerator chamber, comprising: evaporimeter (10), and between pair, heat exchange is carried out in chamber; Fan, blows evaporimeter; Air duct cover board (20), possesses air outlet and return air inlet (21), and wind path indoor between making circulates; And heater (30), in the time of defrosting, evaporimeter (10) is heated, the return air inlet place of air duct cover board (20) is provided with air dam (22), air dam (22) is constituted as, and stops that the cold air of hot gas that heater (30) formed in when defrosting and the return air inlet (21) by air duct cover board (20) carries out heat exchange.According to refrigerator of the present utility model, the thermal loss can reduce defrosting time.
Description
Technical field
The utility model relates to a kind of refrigerator, the refrigerator of the air guide structure while particularly possessing cold air return air.
Background technology
Current indirect cooling refrigerator is between the normal operating period, conventionally in every operation about 12～24 hours, heat defrost because therefore the long-pending frost of evaporator surface seriously needs to move large power, electrically, especially shorter interval time in the lower defrost of high load capacity environment (high temperature, high humidity or frequent switch refrigerator doors).And more than each defrost lasting half an hour of running time, and refrigeration system is out of service during this period.In above situation, the defrost heat in evaporimeter space can invade in refrigerator and cause the temperature inside the box fluctuation aggravation to affect food storage quality; And reduce because defrost heat leak causes effective defrost heat (heating fumigators surface is to reach the heat of defrosting object), cause defrosting time to extend and finally cause refrigerator operation energy consumption significantly to rise.
For example, Fig. 3 is the sectional view that represents the concrete structure at the return air inlet place of the air duct cover board of the refrigerator of prior art.In existing refrigerator, comprising: between pair, the evaporimeter 10 of heat exchange is carried out in chamber; The fan (not shown) that evaporimeter 10 is blown; Possess air outlet (not shown) and return air inlet 21, and the air duct cover board 20 that between making, indoor wind path circulates; And the heater 30 in the time of defrosting, evaporimeter 10 being heated.But return air inlet 21 places of the evaporimeter wind path periphery of existing refrigerator, are to be only provided with simple opening.This is favourable to return air in the time of cool cycles, but does not consider the thermal loss while preventing from defrosting.So in when defrosting, larger from fan part and refrigerating chamber return air inlet 21 heat that sheds, lower defrosting efficiency, and make freezer temperature rising, is unfavorable for the preservation of refrigerating chamber food, and can consumes more compressor horsepower and neutralize this part heat.
Utility model content
The utility model completes in view of the above problems, its objective is a kind of refrigerator that can reduce thermal loss while defrosting is provided.
Refrigerator of the present utility model, is characterized in that, at least one of described refrigerator chamber, comprising: evaporimeter, carries out heat exchange to chamber between described; Fan, blows described evaporimeter; Air duct cover board, possesses air outlet and return air inlet, make described between indoor wind path circulate; And heater, in the time of defrosting, described evaporimeter is heated, the return air inlet place of described air duct cover board is provided with air dam, and described air dam is constituted as, and stops that the cold air of hot gas that described heater formed in when defrosting and the described return air inlet by described air duct cover board carries out heat exchange.
According to above-mentioned refrigerator of the present utility model, because the return air inlet place of air duct cover board is provided with air dam, the hot gas of heater is stopped by this air dam, the heat that is lost to refrigerating chamber reduces, and, the cold air that refrigerating chamber invades in evaporimeter air channel also reduces, and invades cold air and can not directly contact with heater, thereby has improved the efficiency of heater.
In addition, in refrigerator of the present utility model, described air dam is positioned at outside the upright projection region of described evaporimeter.By such structure, can ensure that the condensed water on evaporimeter does not drop on air dam, thereby prevent that condensed water from flowing in refrigerator compartment.
In addition, in refrigerator of the present utility model, described heater top also possesses heater cover plate.By such structure, a part of invading cold air enters into heater cover plate top along the edge of heater cover plate, has reduced with the direct contact surface of heater and has amassed, and can further effectively reduce the loss of heater distribute heat.
In addition, in refrigerator of the present utility model, from the length direction of described evaporimeter, described heater cover plate is circular arc, the line at the two ends on the base that described heater and described evaporimeter are seen from length direction is made as respectively L1, L2, and the tangent line at the intersection point place of the circular arc of described heater cover plate and described L1, L2 is made as respectively to L3, L4, the angle of described L1 and described L3 is greater than 90 degree, and the angle of described L2 and described L4 is greater than 90 degree.By such structure, can improve as much as possible the radiation efficiency of heater.
In addition, in refrigerator of the present utility model, the end of close described return air inlet one side of described heater cover plate is positioned at the below of the end of close described evaporimeter one side of described air dam.By such structure, can ensure that the major part of invading cold air enters into heater cover plate top, can further effectively reduce the loss of the distribute heat of heater.
In addition, in refrigerator of the present utility model, the width of described air dam is more than or equal to the width of described return air inlet.By such structure, can further effectively reduce the loss of heater distribute heat.
Brief description of the drawings
Fig. 1 is the schematic diagram of the related refrigerator of the utility model 1.
Fig. 2 is the sectional view that represents the air dam concrete structure at the return air inlet place of the air duct cover board of the related refrigerator of the utility model 1.
Fig. 3 is the sectional view that represents the concrete structure at the return air inlet place of the air duct cover board of the refrigerator of prior art.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in detail.
Describe the related refrigerator of the utility model in detail preferred embodiment referring to accompanying drawing.In addition, in the description of the drawings, be accompanied by prosign to same or considerable part, the repetitive description thereof will be omitted.
As shown in Figure 1 and Figure 2, for example, in the refrigerating chamber of refrigerator 1 of the present utility model, comprising: between pair, the evaporimeter 10 of heat exchange is carried out in chamber; The fan (not shown) that evaporimeter 10 is blown; Possess air outlet (not shown) and return air inlet 21, and the air duct cover board 20 that between making, indoor wind path circulates; And the heater 30 in the time of defrosting, evaporimeter 10 being heated.Return air inlet 21 places of air duct cover board 20 are provided with air dam 22, and air dam 22 is constituted as, and stop that the cold air of hot gas that heater 30 formed in when defrosting and the return air inlet 21 by air duct cover board 20 carries out heat exchange.Herein, heater 30 can be the conventional heating element heaters such as heating tube.In addition, air dam 22 is for example set to, and in the time that heater 30 defrosts to evaporimeter 10, the Quilt with air conditioning of invading from return air inlet 21 guides to the place away from heater 30.Preferably, air dam 22 has the circular shape being bent upwards, thereby can smoothly the cold air of invading from return air inlet 21 be guided to the top of heater 30.
According to refrigerator 1 of the present utility model, because return air inlet 21 places of air duct cover board 20 are provided with air dam 22, the hot gas of heater 30 is stopped by this air dam 22, the heat that is lost to refrigerating chamber reduces, and, the cold air that refrigerating chamber invades in evaporimeter 10 air channels also reduces, and invades cold air and can not directly contact with heater 30, thereby has improved the efficiency of heater 30.
In addition, as shown in Figure 2, from the length direction (perpendicular to the paper direction of Fig. 2) of evaporimeter 10, air dam 22 is positioned at outside the upright projection region of evaporimeter 10.Thus, can ensure that the condensed water on evaporimeter 10 does not drop on air dam 22, thereby prevent that condensed water from flowing in refrigerator compartment.In addition, preferably, air dam 22 can be set to extend to the upright projection region of evaporimeter 10.Thus, can either make condensed water not drop on air dam 22, can more effectively the cold air of invading from return air inlet 21 be guided to the place away from heater 30 again.
In addition, preferably, heater 30 tops also possess heater cover plate 31.As long as heater cover plate 31 can ensure the condensed water on evaporimeter 10 and not drop on heater 30, and can reach good thermal radiation effect, can be shape arbitrarily, for example, can be circular arc, polygon, triangle etc.Thus, a part of invading cold air enters into heater cover plate 31 tops along the edge of heater cover plate 31, has reduced with the direct contact surface of heater 30 and has amassed, and can further effectively reduce the loss of heater 30 distribute heats.In addition, the end of close return air inlet 21 1 sides of heater cover plate 31 is preferably placed at the below of the end of close evaporimeter 10 1 sides of air dam 22.Thus, can ensure that the major part of invading cold air enters into heater cover plate 31 tops, can further effectively reduce the loss of heater 30 distribute heats.
In addition, from improving the angle of radiation efficiency, from the length direction (perpendicular to the paper direction of Fig. 2) of evaporimeter 10, heater cover plate 31 is preferably circular arc.And, if the line at the two ends on the base that heater 30 and evaporimeter 10 are seen from length direction is made as respectively L1, L2, and the tangent line at the intersection point place of the circular arc of heater cover plate 31 and L1, L2 is made as respectively to L3, L4, preferably the angle of L1 and L3 is greater than 90 degree, and the angle of L2 and L4 is greater than 90 degree.By such structure, can improve as much as possible the radiation efficiency of heater.
In addition, preferably, the width of air dam 22 is more than or equal to the width of described return air inlet 21.That is to say, in Fig. 2, the width perpendicular to paper of air dam 22 is more than or equal to the width perpendicular to paper of return air inlet 21.By such structure, on the whole width of return air inlet 21, be provided with air dam 22, can further effectively carry out wind-guiding to the cold air that blows to return air inlet 21, reduce the loss of heater distribute heat.
According to refrigerator of the present utility model, the thermal loss can effectively reduce defrosting time.
Although below in conjunction with the accompanying drawings and embodiments the utility model is illustrated, is appreciated that above-mentioned explanation does not limit the utility model in any form.Those skilled in the art can be out of shape and change the utility model as required in the situation that not departing from connotation of the present utility model and scope, and these distortion and variation all fall in scope of the present utility model.
Claims (6)
1. a refrigerator, is characterized in that,
In at least one of described refrigerator chamber, comprising:
Evaporimeter, carries out heat exchange to chamber between described;
Fan, blows described evaporimeter;
Air duct cover board, possesses air outlet and return air inlet, make described between indoor wind path circulate; And
Heater heats described evaporimeter in the time of defrosting,
The return air inlet place of described air duct cover board is provided with air dam,
Described air dam is constituted as, and stops that the cold air of hot gas that described heater formed in when defrosting and the described return air inlet by described air duct cover board carries out heat exchange.
2. refrigerator as claimed in claim 1, is characterized in that,
Described air dam is positioned at outside the upright projection region of described evaporimeter.
3. refrigerator as claimed in claim 1 or 2, is characterized in that,
Described heater top also possesses heater cover plate.
4. refrigerator as claimed in claim 3, is characterized in that,
From the length direction of described evaporimeter, described heater cover plate is circular arc,
The line at the two ends on the base that described heater and described evaporimeter are seen from length direction is made as respectively L1, L2, and the tangent line at the intersection point place of the circular arc of described heater cover plate and described L1, L2 is made as respectively to L3, L4, the angle of described L1 and described L3 is greater than 90 degree, and the angle of described L2 and described L4 is greater than 90 degree.
5. refrigerator as claimed in claim 3, is characterized in that,
The end of close described return air inlet one side of described heater cover plate is positioned at the below of the end of close described evaporimeter one side of described air dam.
6. refrigerator as claimed in claim 1 or 2, is characterized in that,
The width of described air dam is more than or equal to the width of described return air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420286907.4U CN204006894U (en) | 2014-05-30 | 2014-05-30 | Refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420286907.4U CN204006894U (en) | 2014-05-30 | 2014-05-30 | Refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204006894U true CN204006894U (en) | 2014-12-10 |
Family
ID=52046884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420286907.4U Expired - Lifetime CN204006894U (en) | 2014-05-30 | 2014-05-30 | Refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204006894U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105698484A (en) * | 2016-04-08 | 2016-06-22 | 海信（山东）冰箱有限公司 | Control method and control device for single-system air-cooling refrigerator, and refrigerator |
| WO2021093713A1 (en) * | 2019-11-11 | 2021-05-20 | 青岛海尔电冰箱有限公司 | Defrosting device and refrigerator comprising same |
-
2014
- 2014-05-30 CN CN201420286907.4U patent/CN204006894U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105698484A (en) * | 2016-04-08 | 2016-06-22 | 海信（山东）冰箱有限公司 | Control method and control device for single-system air-cooling refrigerator, and refrigerator |
| WO2021093713A1 (en) * | 2019-11-11 | 2021-05-20 | 青岛海尔电冰箱有限公司 | Defrosting device and refrigerator comprising same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141210 |