CN1205444C - Heat exchanger for refrigerator - Google Patents
Heat exchanger for refrigerator Download PDFInfo
- Publication number
- CN1205444C CN1205444C CN 01134899 CN01134899A CN1205444C CN 1205444 C CN1205444 C CN 1205444C CN 01134899 CN01134899 CN 01134899 CN 01134899 A CN01134899 A CN 01134899A CN 1205444 C CN1205444 C CN 1205444C
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- Prior art keywords
- fin
- heat exchanger
- air
- refrigerator
- radiating fins
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Abstract
The present invention relates to a heat exchanger used for refrigerators, which is composed of end plates, a plurality of integral radiating fins and a refrigerating pipe, wherein the end plates are arranged at both sides of the heat exchanger; the radiating fins arranged between the end plates are stacked together at intervals; through holes are formed in the end plates and the radiating fins; the refrigerating pipe penetrates through the end plates and is mutually connected with the radiating fins with different length; a plurality of flow guiding parts all provided with small holes and long holes are arranged on the radiating fins; the distances of air inlet ends of the radiating fins are different from the distances of air outlet ends of the radiating fins, the distances of the air inlet ends are wide, and air can smoothly flow; the long holes are made in the flow guiding parts of the radiating fins, the flow of air in contact with the long holes becomes slow, the contact area of air and the radiating fins is enlarged; even the flow direction of air is mistook by the adjacent frosted radiating fins, because the small holes of the flow guiding parts form flow passages, the smooth flow of air is ensured, and heat exchange and production efficiency are enhanced. The heat exchanger has the advantages of simple structure and convenient installation.
Description
Technical field
The present invention relates to a kind of heat exchanger of household appliance technical field use in refrigerator, particularly relate to a kind of simple in structure easy for installationly, it is smooth and easy that air is flowed, the heat exchanger for refrigerator that rate of heat exchange is high.
Background technology
At present, traditional freezing cycle device is made up of the heat exchanger of heat exchanger, expansion mechanism and the evaporation usefulness of compressor, the usefulness of condensing.Compressor compresses cold-producing medium; The gas refrigerant of the heat exchanger of the usefulness of condensing after with compressor compresses condenses into liquid state; Expansion mechanism expands under low-temp low-pressure to the liquid refrigerant through condensing heat exchanger; The heat exchanger of evaporation usefulness then makes the liquid refrigerant through expansion mechanism flash to gas refrigerant once more.
Wherein, the heat exchanger of evaporation usefulness is contained in the cooling chamber of indoor or refrigerator of air-conditioner, exchanges with on every side hot-air limit, produces cold air simultaneously.When the heat exchanger of this evaporation usefulness particularly is used in the refrigerator that requires to have the running of subzero condition, large quantity of moisture contained in the air that circulates in case will be in the surperficial frosting of the heat exchanger that evaporates usefulness, hindered flowing of air, so, above the heat exchanger of general evaporation usefulness on being loaded on refrigerator, a Defrost heater is housed separately.
Fig. 1 is the refrigerator schematic diagram that conventional heat exchanger is housed.
As shown in FIG., conventional refrigerator is provided with the cold air with refrigerating chamber F and refrigerating chamber R and returns the cooling chamber that stream is communicated with on its rear wall, and this cooling chamber is equipped with a blowing fan 2.Blowing fan makes through the cold air of each chamber hot-air through returning stream and returning and passes through, and hot-air is guided into the heat exchanger 1 of the evaporation usefulness of making cold air again, makes the air that turns cold again to refrigerating chamber F and refrigerating chamber R discharging.
The heat exchanger front view that Fig. 2 uses for conventional refrigerator.
As shown in the figure, be a pair of end plate 1a that vertically arranges by two side ends, equidistantly stack between the end plate and put many fin 1b, the refrigerator pipes 1c that is connected with fin with the perforation end plate forms.
Rectangularity is tabular up and down for end plate 1a, and thickness is thicker than fin 1b, and has a plurality of through holes, inserts so that refrigerator pipes 1c connects.
The width of fin 1b is the same with the width of end plate 1a, and it is tabular to make rectangle.With the air-flow direction is benchmark, and the arrangement of inlet end and the arrangement pitches of outlet side are different, and each monolithic fin is connected with refrigerator pipes 1c.The inlet end spacing is wideer than outlet side spacing during connection.
It is unified that the diameter of refrigerator pipes 1c will keep, during arrangement from the air inlet end to the outlet side, its spacing will be consistent.
The refrigerator of above-mentioned tradition evaporation with heat exchanger is housed, and the cyclic process of its cold air is as described below.
At first, if blowing fan 2 starts, to refrigerating chamber F and refrigerating chamber R discharging cold air, then cold air circulates at refrigerating chamber and refrigerating chamber on the one hand, and the food that will store wherein carries out appropriate cooling on the one hand.In this process, hot-air returns stream by the cold air that is contained in refrigerating chamber and refrigerating chamber, enters cooling chamber, is then sucked by blowing fan 2, behind the heat exchanger 1 of the cold evaporation usefulness of passing equipment, becomes cold air again.
At this moment, return the hot-air that stream enters through cold air, with refrigerating chamber and refrigerating chamber Food Contact in, sucked a large amount of moisture, these attachment of moisture cold evaporation with heat exchanger 1 and fin 1b and refrigerator pipes 1c on, form frost.When defrosting running, radiant heat or the conduction heat of utilizing Defrost heater (scheming not shown) to produce dissolve liquid state, flow to defrosting water butt (scheming not shown) along fin 1b and refrigerator pipes 1c then later on.
But, although implemented the defrosting running, but because the frequent switch of refrigerator doors, or under the improper overload condition of long-time door opening state, a large amount of moisture flow to refrigerator inside, make and produce a large amount of frosting phenomenons on the heat exchanger 1 that evaporates usefulness, especially position, air inlet end, concentrate to produce a large amount of frostings, hindered the circulation of air when serious fully, significantly make evaporation be subjected to influence with heat exchanger performance.
For this reason, the heat exchanger of traditional evaporation usefulness adopts the installation method of monolithic fin 1b, the heat radiation of inlet end fin 1b is spaced widens, and fin 1b heat radiation in outlet side is spaced narrow down, and makes inlet end stream clogging be controlled at bottom line.But, do like this because of each fin 1b of single attaching, complex manufacturing not only, and also assembling need be used up a lot of times, and the result has promptly increased production cost, has reduced production efficiency again.
This shows that above-mentioned existing heat exchanger still has many defectives, and the assistant officer waits to be improved.
Because the defective that above-mentioned existing heat exchanger exists, the design people is based on being engaged in this type of product design manufacturing for many years, has abundant practical experience and professional knowledge, actively studied innovation, in the hope of founding a kind of heat exchanger for refrigerator of new structure, can improve the molding structure of the existing conventional heat exchanger of tradition, make it have more competitiveness.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who really has practical value finally.
Summary of the invention
Technical problem underlying to be solved by this invention is, overcome the defective that existing heat exchanger exists, and provide a kind of heat exchanger for refrigerator of new structure, its a lot of sheet fin are stacked together, promptly be convenient to produce and assembling, can widen inlet end at interval again, the outlet side is arranged narrower at interval relatively, it is smooth and easy that air is flowed, and improved the efficient of heat exchange.
Another technical problem to be solved by this invention is, a kind of new refrigerator heat exchanger is provided, it is simple in structure that its heat exchanger for refrigerator is had, and good cheaply effect, and has practicality more, and can increase economic efficiency greatly, thereby have the effect of enhancement on the whole, and have the value on the industry.
The present invention solves its technical problem underlying and realizes by the following technical solutions.Heat exchanger for refrigerator according to the present invention's proposition, include end plate, fin and refrigerator pipes, heat exchanger is by the end plate of a configuration set in both sides, be provided with the fin that is stacked together between the end plate with a plurality of one at interval, have through hole on end plate and the fin, refrigerator pipes passes end plate and fin is interconnected to constitute; It is characterized in that: its length of above-mentioned fin, is arranged to the shortest successively repeatedly from the longest; A plurality of movement-oriented portions are set on the described fin, aperture and long and narrow hole are all arranged above; Be placed on the same horizontal line from inlet end nearest movement-oriented heat radiation edge with adjacent fin.
Each fin of preceding described fin one end is arranged consistent, and each fin of the other end is arranged inconsistent.
The via count of opening on preceding described each fin is inconsistent, and the refrigerator pipes number that passes through each fin through hole is also inconsistent.
Preceding described aperture both sides about long and narrow hole have certain width.
The present invention compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, heat exchanger for refrigerator of the present invention has adopted technique scheme, make the length of each fin different, it is inconsistent that the end of the port of export and adjacent fin are arranged in the horizontal line direction, simultaneously, forms many movement-oriented portions on each fin, movement-oriented all has aperture and long and narrow hole, different because of above-mentioned fin inlet end spacing and outlet side spacing, very convenient when it is installed, and then improved production efficiency.
And the inlet end spacing is compared with the outlet side spacing, broadens relatively, and air is able to smooth and easy flowing, and simultaneously, because of each fin is made long and narrow hole in movement-oriented portion, becomes when air is run into long and narrow hole and slowly flows.Simultaneously, with the contact area broadening of fin,, also, guaranteed the smooth and easy circulation of air, and improved heat exchanger effectiveness because the aperture of movement-oriented portion forms flow passage even air causes flowing to mistake because of adjacent fin frosting.
In sum, heat exchanger for refrigerator of the present invention, it is in limited field, technical development space, no matter structurally or bigger improvement all arranged on the function, and have large improvement technically, and produced handy and practical effect, and have the effect of enhancement really, thereby being suitable for practicality more, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction partly of technical solution of the present invention feature, for making the professional and technical personnel can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, below with preferred embodiment of the present invention and conjunction with figs. describe in detail as after.
The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Fig. 1 is the refrigerator schematic diagram that conventional heat exchanger is housed.
The heat exchanger front view that Fig. 2 uses for conventional refrigerator.
The heat exchanger schematic diagram that Fig. 3 uses for refrigerator of the present invention.
The heat exchanger front view that Fig. 4 uses for refrigerator of the present invention.
Another front view of heat exchanger that Fig. 5 uses for refrigerator of the present invention.
The relevant air flow graph of heat exchanger that Fig. 6 uses for refrigerator of the present invention.
The heat exchanger fin structural representation that Fig. 7 uses for refrigerator of the present invention.
Fig. 8 is out of shape relevant air flow graph with the heat exchanger fin that Fig. 9 uses for refrigerator of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to its specific embodiment, structure, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
The heat exchanger that conventional refrigerator is used
F. refrigerating chamber R. refrigerating chamber
1. evaporate heat exchanger 2. blowing fans of usefulness
1a. end 1b. fin
1c. refrigerator pipes
The heat exchanger that refrigerator of the present invention is used
10. evaporate heat exchanger 11. end plates of usefulness
12. fin 13. refrigerator pipes
Movement-oriented 12a-1 aperture of 12a
12a-2 long and narrow hole I. frosting piece
See also Fig. 3 to shown in Figure 9, the evaporation heat-exchanger 10 that refrigerator of the present invention is used is made up of following various piece, and promptly both side ends has one group of vertical end plate 11 of placing; The a plurality of fin 12 of equidistant placement between the end plate 11 pass end plate 11 and a plurality of fin 12 has interconnected refrigerator pipes 13.
End plate 11 is made rectangular Square consisting of two isosceles right-angled triangles shape from top to bottom, and thickness is thicker than fin 12, and makes a plurality of through holes (not marking among the figure), so that refrigerator pipes 13 is passed and inserted.
The arrangement of fin 12 each outlet sides is mutually the same, and on the contrary, each inlet end is arranged then internally inconsistent.Fin 12 inlet end length shown in Figure 4 from the longest to the shortest again from the shortest to the longest arranging repeatedly successively.And fin 12 inlet end length shown in Figure 5 from the longest to the shortest arranging repeatedly successively.
And Fig. 7 to Fig. 9 on each fin 12, is provided with many movement-oriented 12a too, all has aperture 12a-1 and long and narrow hole 12a-2 above.The both sides up and down of long and narrow hole 12a-2 are formed with the aperture 12a-1 of certain width, above-mentioned movement-oriented movement-oriented 12a with adjacent fin 12 is arranged on the same horizontal line, perhaps be arranged on the different horizontal lines with adjacent 12 movement-oriented 12a of fin, perhaps the heat radiation edge with adjacent fin 12 is arranged on the same horizontal line.
Refrigerator pipes 13 is passed the number of times of each fin 12, and the length of each fin 12 all keeps having nothing in common with each other, but the diameter that passes refrigerator pipes on the fin is consistent, and when fin was arranged, it is consistent that want at the interval between each fin from the air intlet to the port of export.
Heat exchanger for refrigerator assembling process of the present invention is as follows:
Each end plate 11 is placed on two side ends, between end plate 11,, stacks a plurality of fin 12 then, make the length of import keep having nothing in common with each other, make refrigerator pipes 13 pass end plate 11 and fin 12 in order, finish the assembling of heat exchanger for refrigerator by certain interval.
Like this, end plate 11 and fin 12 just can be arranged out mutually different inlet end intervals and outlet side intervals through once assembling.Therefore, do like this and pass through refrigerator pipes one by one than single fin and assemble simply, clearly improved production efficiency, thereupon, also just can obtain to have reduced the effect of high producing cost.
Simultaneously, the result of use of heat exchanger for refrigerator of the present invention is as described below.
The air that after freezer compartment of refrigerator F (shown in Figure 1) and refrigerating chamber R (shown in Figure 1) circulate, returns, flow into cooling chamber, be cooled in the time of through heat exchanger of the present invention 10, this strand cold air distributes equably again supplies with refrigerating chamber F and refrigerating chamber R, and the food that each chamber is stored obtains fresh-keeping.
At this moment, get back in the air of refrigerator pipes and contain a large amount of moisture, these attachment of moisture are in the surface and the frosting of heat exchanger 10, overslaugh the circulation of air.But, as shown in Figure 6, when the length of fin 12 is different, especially with the circulation of air benchmark, when inlet end corresponding site heat radiation spacing was widened, even the contact area between the air of inducer and the heat exchanger 10 is narrow, attachment of moisture was to each fin 12, owing to prevented the obstruction fully of air gas circuit in advance, therefore, from the inlet end to the outlet side, along with the even contact of air, the frosting degree distribution is even, and air can smooth and easyly circulate.
And to shown in Figure 9, along with a plurality of movement-oriented 12a are set on the fin 12, air to the outlet flow process, runs into the long and narrow hole 12a-2 cross section of each movement-oriented portion from import, forms slowly and flows as Fig. 7.This air frequently flows between each fin 12, and contacts significantly with fin 12, thereby has improved heat exchange effect.
Airborne moisture contact also condenses on the fin 12, even during the defrosting running, dissolve and flow down, so on the aperture 12a-1 and long and narrow hole 12a-2 of movement-oriented 12a, many droplet appearance have been formed, the frost grain of edge's knot diminishes as a result, has prevented the complete phenomenon of blocking of stream quilt between the fin.
Simultaneously, air causes the flow direction mistake because of the frosting that generates on the adjacent fin 12, owing on the air-flow direction of mistake, be provided with aperture 12a-1 in advance, air can leakage current to movement-oriented 12a of adjacent fin 12, so, air just can flow to the outlet side from import swimmingly by this aperture 12a-1.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (4)
1, a kind of heat exchanger for refrigerator, include end plate, fin and refrigerator pipes, heat exchanger is by the end plate of a configuration set in both sides, be provided with the fin that is stacked together between the end plate with a plurality of one at interval, have through hole on end plate and the fin, refrigerator pipes passes end plate and fin is interconnected to constitute; It is characterized in that: its length of above-mentioned fin, is arranged to the shortest successively repeatedly from the longest; A plurality of movement-oriented portions are set on the described fin, aperture and long and narrow hole are all arranged above; Be placed on the same horizontal line from inlet end nearest movement-oriented heat radiation edge with adjacent fin.
2,, it is characterized in that each fin arrangement of described fin one end is consistent, and each fin of the other end is arranged inconsistent according to claim 1 heat exchanger for refrigerator.
3, heat exchanger for refrigerator according to claim 1 is characterized in that the via count of opening on described each fin is inconsistent, and the refrigerator pipes number that passes through each fin through hole is also inconsistent.
4, heat exchanger for refrigerator according to claim 1 is characterized in that wherein said aperture both sides about long and narrow hole, has certain width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01134899 CN1205444C (en) | 2001-11-19 | 2001-11-19 | Heat exchanger for refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01134899 CN1205444C (en) | 2001-11-19 | 2001-11-19 | Heat exchanger for refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1420328A CN1420328A (en) | 2003-05-28 |
| CN1205444C true CN1205444C (en) | 2005-06-08 |
Family
ID=4672839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01134899 Expired - Fee Related CN1205444C (en) | 2001-11-19 | 2001-11-19 | Heat exchanger for refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1205444C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5452063B2 (en) * | 2009-04-14 | 2014-03-26 | 三菱電機株式会社 | refrigerator |
| CN101963418B (en) * | 2009-07-21 | 2012-09-05 | 约克（无锡）空调冷冻设备有限公司 | Micro channel heat exchanger for air-conditioner heat pump |
| CN108398037A (en) * | 2017-09-30 | 2018-08-14 | 奥克斯空调股份有限公司 | A kind of high-performance heat exchanger flow passage structure, air conditioner and heat-exchange method |
| CN109732889B (en) * | 2019-03-18 | 2020-10-20 | 合肥工业大学 | Uniform heating device of biaxial stretching film transverse drawing machine |
-
2001
- 2001-11-19 CN CN 01134899 patent/CN1205444C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1420328A (en) | 2003-05-28 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050608 Termination date: 20091221 |