CN211204512U - Fin evaporator for refrigerator - Google Patents
Fin evaporator for refrigerator Download PDFInfo
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- CN211204512U CN211204512U CN201922254911.8U CN201922254911U CN211204512U CN 211204512 U CN211204512 U CN 211204512U CN 201922254911 U CN201922254911 U CN 201922254911U CN 211204512 U CN211204512 U CN 211204512U
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Abstract
The utility model discloses a fin evaporator for refrigerator relates to refrigerator accessory technical field. The utility model discloses in: the coil pipe is arranged between the brackets; the fin groups are uniformly fixed on the coil pipe, and the spacing between the fins in the fin groups is gradually increased from top to bottom; one surface of the bracket comprises a first mounting hole and a second mounting hole; the coil pipe is a coiled pipe formed by connecting a straight pipe and a U-shaped pipe in sequence; one surface of the first fin is provided with a first straight tube through hole and a plurality of louvers; and a second straight pipe through hole is transversely formed in one surface of the second fin. The utility model reduces the density of the pipeline by adopting the staggered pipe arrangement in the form of an isosceles ladder; the fin group is formed by a plurality of fins, and the rib coefficient of the fins is improved by arranging air windows on the fins; on the premise of ensuring that the whole heat exchange area and the heat exchange efficiency of the evaporator are not changed; the purposes of saving materials, reducing the manufacturing cost of parts and improving the energy efficiency grade and the operation reliability of the refrigerator are achieved.
Description
Technical Field
The utility model belongs to the technical field of the refrigerator accessory, especially, relate to a fin evaporator for refrigerator.
Background
The frostless air-cooled refrigerator widely uses a fin evaporator, and the effective heat exchange area, the heat exchange efficiency and the reliability of the evaporator are the most key performance indexes.
For example, in a fin evaporator disclosed in chinese patent CN 203501564U, in order to increase the heat exchange area of the evaporator, the coil pipe of the evaporator uses regular triangular staggered calandria to achieve the maximum pipe density, and the pipe is inserted with fins obliquely to enhance heat exchange. The evaporator can realize a large heat exchange area in a small space, and the staggered pipeline has obvious air turbulence effect and high heat exchange efficiency. But there are often the following problems:
①, the pipeline has high arrangement density, more material consumption and higher manufacturing cost;
② the evaporator has large length of pipeline, resulting in large refrigerant filling amount, large running resistance of the refrigerating system, and is not favorable for energy saving and environmental protection;
③ in addition, under high temperature and high humidity climatic conditions, frost layers on the evaporator pipelines and fins in the regular triangle arrangement mode are easy to accumulate, and the increase of air side wind circulation resistance causes the reduction of heat exchange efficiency and even the failure;
also, as disclosed in CN207272026U, in order to reduce the frost formation on the surface of the evaporator and improve the reliability, the evaporator coils are designed to be arranged in parallel. The aluminum pipe which is bent into the U-shaped bend penetrates through two holes of the fins to be in a string shape, the outer diameter of the aluminum pipe is expanded in a pipe expanding mode, the fins and the pipeline are assembled together in an interference fit mode, and the pipe bending equipment bends the expanded workpiece into a snake-shaped bend to form the push-expansion type evaporator.
The evaporator has the advantages of low turbulence degree of the air side, less frost formation amount, lower frost blockage failure rate and higher reliability. But the whole volume is larger, and the refrigerator is not suitable for being used on a refrigerator with small space. And the tooling equipment has higher requirement and higher processing and manufacturing cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a finned evaporator for a refrigerator, which adopts the staggered tube arrangement in an isosceles trapezoid way to reduce the density of pipelines; the fin group is formed by a plurality of fins, and the rib coefficient of the fins is improved by arranging air windows on the fins; on the premise of ensuring that the whole heat exchange area and the heat exchange efficiency of the evaporator are not changed, the aims of saving materials, reducing the manufacturing cost of parts and improving the energy efficiency grade and the operation reliability of the refrigerator are fulfilled.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme:
the utility model relates to a fin evaporator for a refrigerator, which comprises a bracket, a coil pipe and a fin group, wherein the coil pipe is arranged between the brackets; the fin groups are uniformly fixed on the coil pipe, and the spacing between the fins in the fin groups is gradually increased from top to bottom; wherein the minimum spacing is recommended to be 5 mm;
one surface of the bracket comprises a plurality of first mounting holes which are arranged in an isosceles trapezoid in a staggered manner and a second mounting hole which is transversely arranged at the bottom; wherein the top angle and the bottom angle of the isosceles trapezoid are respectively 120 degrees and 60 degrees;
the coil pipe is a coiled pipe formed by sequentially connecting a straight pipe and a U-shaped pipe;
the brackets are arranged at two ends of the straight pipe; the upper and lower adjacent straight pipes are connected through a U-shaped pipe; two straight pipes are arranged in the first mounting hole and the second mounting hole;
the fin group comprises a first fin and a second fin; one surface of the first fin is provided with a first straight tube through hole and a plurality of louvers which are arranged in an isosceles trapezoid staggered manner; wherein the top angle and the bottom angle of the isosceles trapezoid are respectively 120 degrees and 60 degrees; a second straight pipe through hole is transversely formed in one surface of the second fin; the first fin is arranged above the second fin;
the first straight pipe through hole and the second straight pipe through hole are matched with the straight pipes; the first straight pipe through hole is matched with the first mounting hole; and the second straight pipe through hole is matched with the second mounting hole.
Further, the support is an L-shaped plate, and the upper surface of the support is provided with a fixing hole which is used for assembling and fixing the evaporator and the refrigerator.
Further, the first fin and the second fin are straight plates or corrugated plates, and the heat exchange effect can be improved by adopting the corrugated plates.
The utility model discloses following beneficial effect has:
the utility model reduces the density of the pipeline by adopting the staggered pipe arrangement in the form of an isosceles ladder; the fin group is formed by a plurality of fins, and the rib coefficient of the fins is improved by arranging air windows on the fins; on the premise of ensuring that the whole heat exchange area and the heat exchange efficiency of the evaporator are not changed; the purposes of saving materials, reducing the manufacturing cost of parts and improving the energy efficiency grade and the operation reliability of the refrigerator are achieved.
Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of a fin evaporator for a refrigerator;
FIG. 2 is a left side view of a finned evaporator for a refrigerator;
FIG. 3 is a front view of a finned evaporator for a refrigerator;
FIG. 4 is a schematic view of the assembly of straight tubes and fin sets;
FIG. 5 is a schematic structural view of a first fin;
fig. 6 is a schematic structural view of a second fin.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "open hole", "upper", "lower", "adjacent", "a surface", "intermediate", "inner", etc. indicate positional or orientational relationships and are merely for convenience of description and simplicity of description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Referring to fig. 1-6, the utility model relates to a fin evaporator for a refrigerator, which comprises a bracket 1, a coil pipe 2 and a fin group 3, wherein the coil pipe 2 is arranged between the bracket 1, the bracket 1 is an L-shaped plate, the upper surface of the bracket 1 is provided with a fixing hole, and the fixing hole is used for assembling and fixing the evaporator and the refrigerator;
the fin groups 3 are uniformly fixed on the coil pipe 2, and the distance between the fins in the fin groups 3 is gradually increased from top to bottom; wherein the minimum spacing is recommended to be 5 mm;
one surface of the bracket 1 comprises a plurality of first mounting holes 101 which are arranged in an isosceles trapezoid in a staggered manner and a second mounting hole 102 which is transversely arranged at the bottom; wherein the top angle and the bottom angle of the isosceles trapezoid are respectively 120 degrees and 60 degrees;
the coil pipe 2 is a coiled pipe formed by sequentially connecting a straight pipe 201 and a U-shaped pipe 202;
the brackets 1 are arranged at two ends of the straight pipe 201; the two adjacent upper and lower straight pipes 201 are connected through a U-shaped pipe 202; two straight pipes 201 are arranged in the first mounting hole 101 and the second mounting hole 102;
the fin group 3 includes a first fin 301 and a second fin 302; one surface of the first fin 301 is provided with a first straight tube through hole 3011 and a plurality of louvers 3012 which are arranged in an isosceles trapezoid staggered manner; the air windows 3012 are uniformly arranged on two sides of the first straight pipe through hole 3011; wherein the top angle and the bottom angle of the isosceles trapezoid are respectively 120 degrees and 60 degrees; a second straight pipe through hole 3021 is transversely formed in one surface of the second fin 302; the first fin 301 is mounted above the second fin 302;
the first fins 301 and the second fins 302 are straight plates or corrugated plates, and the heat exchange effect can be improved by adopting the corrugated plates;
the first straight pipe through hole 3011 and the second straight pipe through hole 3021 are both matched with the straight pipe 201; the first straight tube through hole 3011 is matched with the first mounting hole 101; the second straight pipe through hole 3021 is fitted with the second mounting hole 102.
The first embodiment is as follows: the embodiment is an installation step of a fin and a coil, and comprises the following steps: arranging the fins of the fin group 3 in a distribution way that the spacing is gradually increased from top to bottom to form the fin group; wherein the minimum spacing is recommended to be 5 mm;
after the fin groups 3 are arranged in order, the straight pipes 201 are inserted into the upper ends and the lower ends of the first straight pipe through holes 3011 and the second straight pipe through holes 3021, then the straight pipes 201 are connected into a hydraulic pipe expander, the straight pipes 201 are expanded by pressurization, interference fit is formed between the straight pipes 201 and the first straight pipe through holes 3011 and the second straight pipe through holes 3021, and contact thermal resistance is reduced;
two adjacent straight pipes 201 are connected through a U-shaped pipe 202 and are welded to form a snake-shaped coil pipe 2; forming a complete pipeline with one inlet and one outlet;
and finally, mounting the left bracket 1 and the right bracket 1, and finishing the integral assembly of the evaporator.
Example two: the embodiment is an installation step of a fin and a coil, and comprises the following steps: arranging the fins of the fin group 3 in a distribution way that the spacing is gradually increased from top to bottom to form the fin group; wherein the minimum spacing is recommended to be 5 mm;
after the aluminum pipe is blanked, the aluminum pipe is bent into a serpentine coil 2 according to the requirement of the size of the main body, then the serpentine coil 2 and the fin group 3 are assembled together in an oblique insertion assembly mode, and the upper ends and the lower ends of the first straight pipe through holes 3011 and the second straight pipe through holes 3021 of the straight pipe 201 bundle and the fin group are assembled in a matched mode.
And finally, mounting the left bracket 1 and the right bracket 1, and finishing the integral assembly and manufacture of the evaporator.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (3)
1. A finned evaporator for a refrigerator comprises a bracket (1), a coil (2) and a fin group (3), and is characterized in that: the coil pipe (2) is arranged between the brackets (1); the fin groups (3) are uniformly fixed on the coil pipe (2), and the distance between fins in the fin groups (3) is gradually increased from top to bottom;
one surface of the bracket (1) comprises a plurality of first mounting holes (101) which are arranged in an isosceles trapezoid in a staggered manner and a second mounting hole (102) which is transversely arranged at the bottom;
the coil pipe (2) is a coiled pipe formed by sequentially connecting straight pipes (201) and U-shaped pipes (202), and the straight pipes (201) are arranged in an isosceles trapezoid staggered manner;
the support (1) is arranged at two ends of the straight pipe (201); the two upper and lower adjacent straight pipes (201) are connected through a U-shaped pipe (202); two straight pipes (201) are arranged in the first mounting hole (101) and the second mounting hole (102);
the fin group (3) comprises a first fin (301) and a second fin (302); one surface of the first fin (301) is provided with a first straight tube through hole (3011) and a plurality of louvers (3012) which are arranged in an isosceles trapezoid in a staggered manner; a second straight pipe through hole (3021) is transversely formed in one surface of the second fin (302); the first fin (301) is arranged above the second fin (302);
the first straight pipe through hole (3011) and the second straight pipe through hole (3021) are matched and assembled with the straight pipe (201).
2. A finned evaporator for a refrigerator as claimed in claim 1, characterized in that said bracket (1) is an "L" shaped plate, the upper surface of said bracket (1) is provided with a fixing hole, said fixing hole is used for the assembly and fixation of the evaporator and the refrigerator.
3. A fin evaporator for a refrigerator according to claim 1, wherein the first fin (301) and the second fin (302) are straight plates or wavy plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922254911.8U CN211204512U (en) | 2019-12-16 | 2019-12-16 | Fin evaporator for refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922254911.8U CN211204512U (en) | 2019-12-16 | 2019-12-16 | Fin evaporator for refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211204512U true CN211204512U (en) | 2020-08-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922254911.8U Active CN211204512U (en) | 2019-12-16 | 2019-12-16 | Fin evaporator for refrigerator |
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| CN (1) | CN211204512U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112361666A (en) * | 2020-11-18 | 2021-02-12 | 浙江康盛科工贸有限公司 | Staggered oblique-row internal-expansion type fin evaporator and forming method thereof |
| CN113266962A (en) * | 2021-05-21 | 2021-08-17 | 浙江酷灵信息技术有限公司 | Aluminum tube evaporator and manufacturing method thereof |
| CN114061179A (en) * | 2021-09-28 | 2022-02-18 | 安徽康佳同创电器有限公司 | Heat exchange evaporator and refrigerator |
-
2019
- 2019-12-16 CN CN201922254911.8U patent/CN211204512U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112361666A (en) * | 2020-11-18 | 2021-02-12 | 浙江康盛科工贸有限公司 | Staggered oblique-row internal-expansion type fin evaporator and forming method thereof |
| CN113266962A (en) * | 2021-05-21 | 2021-08-17 | 浙江酷灵信息技术有限公司 | Aluminum tube evaporator and manufacturing method thereof |
| CN114061179A (en) * | 2021-09-28 | 2022-02-18 | 安徽康佳同创电器有限公司 | Heat exchange evaporator and refrigerator |
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