CN212081691U

CN212081691U - Refrigerator is with reinforceing air side heat transfer condenser

Info

Publication number: CN212081691U
Application number: CN201921765644.4U
Authority: CN
Inventors: 王竹; 杨帆; 章凰
Original assignee: Changhong Meiling Co Ltd
Current assignee: Changhong Meiling Co Ltd
Priority date: 2019-10-21
Filing date: 2019-10-21
Publication date: 2020-12-04
Anticipated expiration: 2029-10-21

Abstract

The utility model discloses a refrigerator is with reinforceing air side heat transfer condenser relates to refrigerator accessory technical field. The utility model discloses in: the fins are uniformly fixed on the coil pipe; the left bracket and the right bracket are arranged on the left side and the right side of the coil pipe, and the coil pipe provided with the fins is fixed on the bottom; a plurality of mounting holes are arranged on one surface of each fin side by side; the periphery of the mounting hole is uniformly provided with a plurality of interference flow holes; the coil pipe is a coiled pipe formed by sequentially connecting a plurality of aluminum pipes end to end; the left support and the right support are both L-shaped folded plates. The utility model reduces the volume of the refrigerator system and the filling amount of the refrigerant by the heat exchanger formed by the fins and the coil pipe; the influence on the balance pressure of the system and the requirement on the starting capacity of the compressor are greatly reduced; the turbulence holes are formed in the peripheral sides of the mounting holes in the fins, so that the heat transfer coefficient of the air side is enhanced, the heat exchange area in unit volume is increased, and the heat dissipation requirement of a condensation section of the refrigerator is met.

Description

Refrigerator is with reinforceing air side heat transfer condenser

Technical Field

The utility model belongs to the technical field of the refrigerator accessory, especially relate to a refrigerator is with reinforceing air side heat transfer condenser.

Background

The tube expansion type fin heat exchanger is commonly used as an evaporator in a refrigerator/cabinet refrigeration system, but is rarely used as a refrigerator condenser, and the main reason is that the following problems are not solved:

1. the conventional expansion-tube evaporator is manufactured by adopting a push expansion process, the outer diameter of a pipeline is large (>7mm), and the expansion-tube evaporator used as a refrigerator condenser has the following problems: the air side has large flow resistance and needs to be matched with a fan with higher air pressure; the refrigerator has large internal volume due to thick pipe diameter, high required refrigerant filling amount, large system balance pressure and high requirement on the starting capacity of a compressor.

2. The surface structure of the fin is simple, and the heat transfer coefficient of the air side is low; the larger fin spacing (> 5mm) results in a smaller total air side heat exchange area.

In order to solve the problems of the fin heat exchanger for the refrigerator, an enhanced air side heat transfer condenser for the refrigerator is designed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an intensified air side heat transfer condenser for a refrigerator, which is characterized in that a heat exchanger is composed of fins and a coil pipe, the content volume of a refrigerator system is reduced, and the filling amount of a refrigerant is reduced; the influence on the balance pressure of the system and the requirement on the starting capacity of the compressor are greatly reduced; the turbulence holes are formed in the peripheral sides of the mounting holes in the fins, so that the heat transfer coefficient of the air side is enhanced, the heat exchange area in unit volume is increased, and the heat dissipation requirement of a condensation section of the refrigerator is met.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to an intensified air side heat transfer condenser for a refrigerator, which comprises fins, a coil pipe, a left bracket, a right bracket and a bottom plate, wherein the fins are uniformly fixed on the coil pipe; the left bracket and the right bracket are arranged on the left side and the right side of the coil pipe, and the coil pipe provided with the fins is fixed on the bottom plate;

a plurality of mounting holes are arranged on one surface of each fin side by side; the periphery of the mounting hole is uniformly provided with a plurality of interference flow holes;

the coil pipe is a coiled pipe formed by sequentially connecting a plurality of aluminum pipes end to end; the coil pipe is matched with the mounting hole;

the left support and the right support are both L-shaped folded plates;

wherein, two sides of the bottom surface of the left bracket are respectively provided with a first fixed seat; a plurality of first through grooves are arranged in parallel on one side surface of the left bracket; the first through groove is matched with the bending part of the coil pipe; the side surface of the left bracket is also provided with two through holes; the through hole is respectively matched with the inlet and the outlet of the coil pipe;

wherein, two sides of the bottom surface of the right bracket are respectively provided with a second fixed seat; a plurality of second through grooves are formed in the side face of the right support side by side; the second through groove is matched with the bent part of the coil pipe;

an inlet pipe is welded at the inlet of the coil pipe; an outlet pipe is welded at the outlet of the coil pipe.

Furthermore, a plurality of fins form a fin group side by side; the arrangement pitch of the fins in the fin group is 1.5-4 mm; the width range of the fin is 50-90 mm, and the height range of the fin is 15-40 mm.

Further, the number of the mounting holes is two or three; the mounting hole is in interference fit with the coil pipe; the inner diameter range of the mounting hole is 4-6 mm; the inner diameter range of the flow disturbing hole is 2-4 mm;

the coil pipe and the fins are in interference fit through a hydraulic pipe expanding process, thermal contact resistance is reduced, and the pipe diameter of the coil pipe after pipe expansion is within the range of 4.2-6.35 mm.

Furthermore, the left support and the right support are fixed on a bottom plate through bolts, and a plurality of fixing holes are formed in the upper surface of the bottom plate; the bottom plate is fixed on a water receiving tray in the compressor bin through the matching of the fixing holes and the screws.

The utility model discloses following beneficial effect has:

the utility model reduces the volume of the refrigerator system and the filling amount of the refrigerant by the heat exchanger formed by the fins and the coil pipe; the influence on the balance pressure of the system and the requirement on the starting capacity of the compressor are greatly reduced; the turbulence holes are formed in the peripheral sides of the mounting holes in the fins, so that the heat transfer coefficient of the air side is enhanced, the heat exchange area in unit volume is increased, and the heat dissipation requirement of a condensation section of the refrigerator is met.

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 an enhanced air side heat transfer condenser for a refrigerator;

FIG. 2 is a schematic view of the structure of the coil and the fins;

FIG. 3 is a schematic structural view of a fin;

FIG. 4 is a schematic structural view of the left bracket;

FIG. 5 is a schematic structural view of a right bracket;

FIG. 6 is a schematic diagram of a three bank refrigerator enhanced air side heat transfer condenser;

FIG. 7 is a schematic structural view of a three-row pipe coil and fins;

FIG. 8 is a schematic structural view of a fin with three mounting holes;

FIG. 9 is a schematic structural view of a left bracket of three rows of tubes;

fig. 10 is a schematic structural diagram of a right bracket of three rows of tubes.

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", "thickness", "top", "middle", "length", "inner", "around", and the like, indicate positional or positional relationships, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to 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. 1-10, the present invention relates to an enhanced air side heat transfer condenser for a refrigerator, which comprises fins 1, a coil 2, a left bracket 3, a right bracket 4 and a bottom plate 7, wherein the fins 1 are uniformly fixed on the coil 2; the left bracket 3 and the right bracket 4 are arranged on the left side and the right side of the coil pipe 2, and the coil pipe 2 provided with the fins 1 is fixed on the bottom plate 7;

a plurality of mounting holes 101 are arranged on one surface of the fin 1 side by side; the periphery of the mounting hole 101 is uniformly provided with a plurality of interference flow holes 102; the plurality of fins 1 form a fin group side by side; the arrangement pitch of the fins 1 in the fin group is 1.5-4 mm; the width range of the fin 1 is 50-90 mm, and the height range of the fin 1 is 15-40 mm; the number of the mounting holes 101 is two or three; the mounting hole 101 is in interference fit with the coil pipe 2; the inner diameter range of the mounting hole 101 is 4-6 mm; the inner diameter range of the turbulent flow hole 102 is 2-4 mm;

the coil pipe 2 is a coiled pipe formed by sequentially connecting a plurality of aluminum pipes end to end; the coil 2 is matched with the mounting hole 101; the coil pipe 2 and the fins 1 are in interference fit through a hydraulic pipe expansion process, so that the contact thermal resistance is reduced, and the pipe diameter of the coil pipe 2 after pipe expansion is in the range of 4.2-6.35 mm;

the left bracket 3 and the right bracket 4 are both L-shaped folded plates; wherein, two sides of the bottom surface of the left bracket 3 are respectively provided with a first fixed seat 301; a plurality of first through grooves 302 are arranged on one side surface of the left bracket 3 side by side; the first through groove 302 is matched with the bending part of the coil pipe 2; the side surface of the left bracket 3 is also provided with two through holes 303; the through hole 303 is respectively matched with the inlet and the outlet of the coil pipe 2; wherein, two sides of the bottom surface of the right bracket 4 are respectively provided with a second fixed seat 401; a plurality of second through grooves 402 are arranged in parallel on the side surface of the right bracket 4; the second through groove 402 is matched with the bending part of the coil pipe 2;

an inlet pipe 5 is welded at the inlet of the coil pipe 2; an outlet pipe 6 is welded at the outlet of the coil pipe 2;

the condenser main body structure of the condenser comprises two rows of tubes, a double-hole fin and three rows of tubes and a three-hole fin; inserting a U-shaped aluminum tube into the arranged fins 1 provided with two mounting holes 101, expanding the tube and bending the tube to form a double-row finned tube; or the U-shaped aluminum tube and the straight aluminum tube are inserted into the fin 1 provided with the three mounting holes 101 in parallel, and after tube expansion, one end of the straight tube is welded with one end of the U-shaped aluminum tube in a bent manner to form three rows of finned tubes arranged in parallel.

The left support 3 and the right support 4 are fixed on the bottom plate 7 through bolts, and the upper surface of the bottom plate 7 is provided with a plurality of fixing holes; the bottom plate 7 is fixed on a water pan in the compressor bin through the matching of a fixing hole and a screw.

The first embodiment is as follows: the embodiment is an installation step of a fin and a coil, and comprises the following steps: the fins 1 are closely arranged according to a distance f to form a fin group, the value of f is 1.5-4 mm, the width range of the fins (1) is 50-90 mm, the height range of the fins (1) is 15-40 mm, and a bending distance R is reserved between the fin group and the fin group so as to facilitate mechanical bending and coil pipe forming;

after the fins 1 are arranged in order, inserting a U-shaped aluminum pipe forming the coil pipe 2 into the mounting hole 101 (at the moment, the outer diameter of the U-shaped aluminum pipe is smaller than the diameter D of the mounting hole 101 of the fin 1), then connecting the U-shaped aluminum pipe into a hydraulic pipe expander, pressurizing to expand the coil pipe 2, forming interference fit with the mounting hole 101 of the fin 1, reducing thermal contact resistance, and enabling the outer diameter of the coil pipe 2 after pipe expansion to be 4.2-6.35 mm;

wherein, if the fin 1 provided with the three mounting holes 101 is provided, a straight aluminum pipe is required to be inserted, the straight aluminum pipe is expanded, and then one end of the coil pipe 2 is welded with one end of the straight aluminum pipe to form a complete pipeline with one inlet and one outlet;

and (3) mechanically bending the adjacent two U-shaped aluminum pipes at the joint, and welding to form the snake-shaped coil 2.

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

1. The utility model provides a refrigerator is with strengthening air side heat transfer condenser, includes fin (1), coil pipe (2), left socle (3), right branch frame (4) and bottom plate (7), its characterized in that: the fins (1) are uniformly fixed on the coil pipe (2); the left support (3) and the right support (4) are arranged on the left side and the right side of the coil pipe (2), and the coil pipe (2) provided with the fins (1) is fixed on the bottom plate (7);

a plurality of mounting holes (101) are arranged on one surface of the fin (1) side by side; a plurality of interference flow holes (102) are uniformly formed in the peripheral side of the mounting hole (101);

the coil pipe (2) is a coiled pipe formed by sequentially connecting a plurality of aluminum pipes end to end; the coil (2) is matched with the mounting hole (101);

the left support (3) and the right support (4) are both L-shaped folded plates;

wherein, two sides of the bottom surface of the left bracket (3) are respectively provided with a first fixed seat (301); a plurality of first through grooves (302) are arranged on one side surface of the left bracket (3) side by side; the first through groove (302) is matched with the bending part of the coil pipe (2); the side surface of the left bracket (3) is also provided with two through holes (303); the through hole (303) is respectively matched with the inlet and the outlet of the coil pipe (2);

wherein, two sides of the bottom surface of the right bracket (4) are respectively provided with a second fixed seat (401); a plurality of second through grooves (402) are arranged in parallel on the side surface of the right bracket (4); the second through groove (402) is matched with the bending part of the coil pipe (2);

an inlet pipe (5) is welded at the inlet of the coil pipe (2); an outlet pipe (6) is welded at the outlet of the coil pipe (2).

2. An enhanced air side heat transfer condenser for a refrigerator according to claim 1, wherein a plurality of said fins (1) are arranged side by side to form a fin group; the arrangement pitch of the fins (1) in the fin group is 1.5-4 mm; the width range of the fin (1) is 50-90 mm, and the height range of the fin (1) is 15-40 mm.

3. An enhanced air side heat transfer condenser for a refrigerator according to claim 1, wherein the number of said mounting holes (101) is two or three; the mounting hole (101) is in interference fit with the coil (2); the inner diameter range of the mounting hole (101) is 4-6 mm; the inner diameter range of the flow disturbing hole (102) is 2-4 mm.

4. An enhanced air side heat transfer condenser for a refrigerator according to claim 1, wherein said left bracket (3) and said right bracket (4) are fixed on a bottom plate (7) by bolts, and a plurality of fixing holes are formed on the upper surface of said bottom plate (7); the bottom plate (7) is fixed in the compressor bin through the fixing hole and the screw in a matched mode.