CN216409857U - Heat exchanger - Google Patents

Abstract

The disclosure provides a heat exchanger, and belongs to the technical field of air conditioners. The heat exchanger comprises a first collecting pipe, a second collecting pipe, a plurality of flat pipes, a plurality of foils and a plurality of fin assemblies; the flat pipes are arranged at intervals along the length direction of the first collecting pipe, one ends of the flat pipes are communicated with the first collecting pipe, and the other ends of the flat pipes are communicated with the second collecting pipe; a plurality of the foil piece is located adjacent two respectively between the flat pipe, and with the outer wall of flat pipe links to each other, the side of foil piece has the guiding gutter, and is a plurality of the fin subassembly is located adjacent two respectively between the flat pipe, this disclosure passes through the heat exchanger, can discharge the comdenstion water on the fin subassembly smoothly.

Description

Heat exchanger

Technical Field

The disclosure belongs to the technical field of air conditioners, and particularly relates to a heat exchanger.

Background

The parallel flow heat exchanger is a novel efficient compact heat exchanger and is made of all aluminum. In household air conditioners, parallel flow heat exchangers have become an alternative to copper tube heat exchangers.

In the related art, a parallel flow heat exchanger includes a plurality of flat tubes, fins, two headers, and the like, which are stacked. Wherein, a plurality of flat pipes are arranged along the length direction interval of two pressure pipes, and the both ends of every flat pipe are linked together with two pressure pipes respectively, and the fin is located between two adjacent flat pipes, and direct brazing is on the flat pipe that corresponds.

However, because the parallel flow heat exchanger is placed in an inclined state when in use, when the parallel flow heat exchanger is in an evaporation working condition, the parallel flow heat exchanger can absorb the ambient heat, so that the temperature of the parallel flow heat exchanger is reduced, and the moisture in the air is condensed on the fins to form condensed water. At this moment, because fin and flat pipe direct brazing, so the comdenstion water is easy in the gathering of fin bottom, leads to unable smooth discharge, and easily gathers and frosts, freezes between fin and flat pipe, influences heat exchange efficiency.

SUMMERY OF THE UTILITY MODEL

The embodiment of the disclosure provides a heat exchanger, which can smoothly discharge condensed water on a fin assembly. The technical scheme is as follows:

the embodiment of the disclosure provides a heat exchanger, which comprises a first collecting pipe, a second collecting pipe, a plurality of flat pipes, a plurality of foils and a plurality of fin assemblies;

the first collecting pipe and the second collecting pipe are arranged in parallel;

the flat pipes are arranged at intervals along the length direction of the first collecting pipe, one ends of the flat pipes are communicated with the first collecting pipe, and the other ends of the flat pipes are communicated with the second collecting pipe;

the plurality of foils are respectively positioned between two adjacent flat pipes and are connected with the outer walls of the flat pipes, the side edges of the foils are provided with guide grooves, the first ends of the guide grooves are positioned in the middle of the foils, and the second ends of the guide grooves extend towards the side edges of the foils;

the fin assemblies are respectively positioned between two adjacent flat tubes and are in one-to-one correspondence with the foils, the fin assemblies are connected with the corresponding foils, and the fin assemblies are adjacent to the first ends of the guide grooves of the corresponding foils.

In yet another implementation of the present disclosure, the guide groove has a plurality;

the guide grooves are sequentially arranged at intervals along the length direction of the foil.

In another implementation manner of the present disclosure, the guide grooves are V-shaped grooves, and the notches of the guide grooves face the corresponding fin assemblies.

In yet another implementation of the present disclosure, the foil includes a tab and a raised bent tab;

the orthographic projection of the connecting sheet on the flat pipe is overlapped with the flat pipe, and the connecting sheet is connected with the corresponding flat pipe;

the side edge of the convex bending piece is connected with the side edge of the connecting piece, and the convex bending piece protrudes out of the flat pipe;

the first end of the diversion trench is located at the joint between the protruding bending piece and the connecting piece, and the second end of the diversion trench is located at the side edge of the protruding bending piece far away from the connecting piece.

In yet another implementation of the present disclosure, the foil is a composite aluminum unitary structure.

In yet another implementation of the present disclosure, the fin assembly includes a plurality of fins connected to the corresponding foils along the length direction of the flat tubes.

In yet another implementation of the present disclosure, the fin assembly is an aluminum structural member.

In another implementation manner of the present disclosure, the first manifold has a plurality of first insertion holes along a length direction thereof, the second manifold has a plurality of second insertion holes along a length direction thereof, the first insertion holes correspond to the second insertion holes one to one, and two ends of the flat tubes are respectively inserted into the corresponding first insertion holes and second insertion holes.

In yet another implementation of the present disclosure, the heat exchanger further comprises a plurality of baffles;

and one part of the plurality of separators is positioned in the first collecting pipe at intervals along the length direction of the first collecting pipe, and the other part of the plurality of separators is positioned in the second collecting pipe at intervals along the length direction of the second collecting pipe.

In another implementation manner of the present disclosure, the heat exchanger further includes a liquid inlet pipe, a first end of the liquid inlet pipe is communicated with the end of the first collecting pipe, and a second end of the liquid inlet pipe is an input port of the refrigerant.

The technical scheme provided by the embodiment of the disclosure has the following beneficial effects:

when the heat exchanger that provides through this disclosure embodiment is used in air conditioner, because this heat exchanger includes a plurality of foilss, and foil and flat tub of one-to-one arrangement, the foil is equipped with the guiding gutter, the first end of guiding gutter is located the middle part of foil, the second end of guiding gutter extends towards the side of foil, so when condensing the comdenstion water on the fin assembly, the comdenstion water alright flow along the fin assembly, and discharge along the guiding gutter from one side of foil, just so can discharge the comdenstion water smoothly, prevent that the comdenstion water from condensing between fin assembly and flat tub, and influence the working effect of heat exchanger.

The heat exchanger provided by the embodiment of the disclosure can simply and quickly discharge condensed water by adding the foil, and is low in cost and strong in applicability.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a heat exchanger provided by an embodiment of the present disclosure;

FIG. 2 is an enlarged partial view of a heat exchanger provided by an embodiment of the present disclosure;

FIG. 3 is a schematic diagram of a foil configuration provided by an embodiment of the present disclosure;

FIG. 4 is a schematic view of a connection between a foil and a fin assembly provided by an embodiment of the present disclosure;

fig. 5 is a usage effect diagram of a heat exchanger provided by the embodiment of the disclosure.

The symbols in the drawings represent the following meanings:

1. a first header; 11. a first plug hole;

2. a second header; 21. a second plug hole;

3. flat tubes;

4. a foil; 40. a diversion trench; 41. connecting sheets; 42. projecting the bending sheet;

5. a fin assembly; 51. a fin;

6. a partition plate; 7. a liquid inlet pipe.

Detailed Description

To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

The disclosed embodiment provides a heat exchanger, as shown in fig. 1, the heat exchanger includes a first header 1 and a second header 2, a plurality of flat tubes 3, a plurality of foils 4, and a plurality of fin assemblies 5 (see fig. 2).

The first header 1 and the second header 2 are arranged parallel to each other. A plurality of flat pipes 3 are arranged along the length direction interval of first pressure manifold 1, and the one end of a plurality of flat pipes 3 is linked together with first pressure manifold 1, and the other end of a plurality of flat pipes 3 is linked together with second pressure manifold 2.

Fig. 2 is a partial enlarged view of a heat exchanger provided in an embodiment of the present disclosure, and with reference to fig. 2, a plurality of foils 4 are respectively located between two adjacent flat tubes 3 and connected to outer walls of the flat tubes 3, a side of the foil 4 has a guide groove 40, a first end of the guide groove 40 is located in the middle of the foil 4, and a second end of the guide groove 40 extends toward the side of the foil 4. The fin assemblies 5 are respectively located between two adjacent flat pipes 3, the fin assemblies 5 correspond to the foil pieces 4 one by one, the fin assemblies 5 are connected with the corresponding foil pieces 4, and the fin assemblies 5 are adjacent to the first ends of the guide grooves 40 of the corresponding foil pieces 4.

When using in the air conditioner through the heat exchanger that this disclosed embodiment provided, because this heat exchanger includes a plurality of foil pieces 4, and foil pieces 4 and flat pipe 3 one-to-one arrange, foil pieces 4 are equipped with guiding gutter 40, the first end of guiding gutter 40 is located the middle part of foil pieces 4, the second end of guiding gutter 40 extends towards the side of foil pieces 4, so when condensing the comdenstion water on fin assembly 5, the comdenstion water alright flow along fin assembly 5, and discharge along guiding gutter 40 from one side of foil pieces 4, just so can discharge the comdenstion water smoothly, prevent that the comdenstion water from condensing between fin assembly 5 and flat pipe 3, and influence the working effect of heat exchanger.

The heat exchanger provided by the embodiment of the disclosure can simply and quickly discharge condensed water by adding the foil, and is low in cost and strong in applicability.

Referring to fig. 1 and fig. 2 again, optionally, the first collecting pipe 1 has a plurality of first inserting holes 11 along the length direction thereof, the second collecting pipe 2 has a plurality of second inserting holes 21 along the length direction thereof, the first inserting holes 11 correspond to the second inserting holes 21 one to one, the first inserting holes 11 correspond to the flat pipes 3 one to one, and two ends of the flat pipes 3 are respectively inserted into the corresponding first inserting holes 11 and the corresponding second inserting holes 21.

Above structure, can be quick with flat pipe 3 with first pressure manifold 1, the quick installation of second pressure manifold 2 together, improve the installation effectiveness.

Fig. 3 is a schematic structural diagram of a foil provided by an embodiment of the disclosure, and in combination with fig. 3, exemplarily, the flow guide groove 40 has a plurality of flow guide grooves 40, and the plurality of flow guide grooves 40 are sequentially arranged at intervals along the length direction of the foil 4.

In the above implementation, the arrangement of the plurality of guide grooves 40 can improve the guide efficiency, so that the condensed water is discharged as soon as possible.

Fig. 4 is a schematic view of a connection between a foil and a fin assembly according to an embodiment of the disclosure, and in conjunction with fig. 4, the guide grooves 40 are V-shaped grooves. The guide groove 40 is a V-shaped groove, and the notch of the guide groove 40 faces the corresponding fin assembly 5.

The guide groove 40 is arranged to be a V-shaped groove, so that the guide function of the guide groove 40 can be simply realized through the V-shaped groove, and the guide effect is improved at low cost.

Moreover, the guiding gutter 40 is a V-shaped groove, so that the condensed water can automatically flow along the inner groove wall of the guiding gutter 40, and the condensed water can rapidly flow back.

Fig. 5 is a usage effect diagram of the heat exchanger provided by the embodiment of the present disclosure, and optionally, an included angle between a center line (a straight line a in fig. 5) of the V-shaped structure corresponding to the guiding groove 40 and a vertical center line (a straight line perpendicular to the length direction of the foil 4, a straight line b in fig. 5) of the foil 4 is the same as an included angle between a plane where the first collecting pipe 1 and the second collecting pipe 2 are located and a horizontal plane.

The arrangement can ensure that the guide groove 40 is asymmetric on the foil 4, so that the inner groove wall of the guide groove 40 is in the vertical direction, and water drops can be discharged quickly.

When the heat exchanger is used, the heat exchanger is in an inclined state, that is, an included angle a between a plane formed by the first collecting pipe 1 and the second collecting pipe 2 and a horizontal plane is the same as an included angle β between a V-shaped central line of the guiding groove 40 on the foil 4 and a central line of the foil 4 (a ═ β), so that water drops can be vertically discharged along the V-shaped central line (a straight line a in fig. 5) of the guiding groove 40.

In this embodiment, the included angle between the plane formed by the first header 1 and the second header 2 and the horizontal plane is 0 to 60 degrees (i.e., a is 0 to 60 degrees).

With continued reference to fig. 4, the foil 4 optionally includes a tab 41 and a raised bent tab 42. The orthographic projection of the connecting piece 41 on the flat tube 3 is overlapped with the flat tube 3, and the connecting piece 41 is connected with the corresponding flat tube 3. The side edge of the convex bending piece 42 is connected with the side edge of the connecting piece 41, and the convex bending piece 42 is protruded out of the flat pipe 3.

The first end of the guiding groove 40 is located at the joint between the convex bent piece 42 and the connecting piece 41, and the second end of the guiding groove 40 is located at the side of the convex bent piece 42 away from the connecting piece 41.

In the above implementation, the connecting pieces 41 are used for connecting with the corresponding fin assemblies 5, and the convex bending pieces 42 are used for arranging the guide grooves 40.

In this embodiment, the guiding gutter 40 is integrally formed by stamping, so that the guiding gutter 40 can be rapidly manufactured.

In this embodiment, the protruding bending pieces 42 protrude from the corresponding flat tubes 3 and extend outward by 2-5 mm. This directs the condensate from the bottom of the fin assembly 5 to the projecting bent pieces 42 by capillary action of the foil 4.

Optionally, the foil 4 is a composite aluminium integral structural member.

In the above implementation, the foil 4 is a composite aluminum integral structure, which can improve the processing efficiency of the foil 4 and reduce the weight of the foil 4.

In this embodiment, the foil 4 is a single composite layer aluminum foil and is connected to the corresponding flat tube 3 by brazing.

Referring again to fig. 2 or 4, optionally, the fin assembly 5 comprises a plurality of fins 51, the fins 51 being connected to the corresponding foils 4 along the length of the flat tubes 3.

In the above implementation manner, the arrangement of the plurality of fins 51 can rapidly cool and dissipate the heat of the flat tubes 3.

Optionally, the fin assembly 5 is an aluminum structural member. The aluminum structure has a high thermal conductivity, which allows the fin assembly 5 to dissipate heat quickly.

Referring again to fig. 1, optionally, the heat exchanger further comprises a plurality of baffles 6. Some of the plurality of partition plates 6 are located in the first header 1 at intervals along the longitudinal direction of the first header 1, and other of the plurality of partition plates 6 are located in the second header 2 at intervals along the longitudinal direction of the second header 2.

The baffle 6 can make the refrigerant form snake font distance when flat pipe 3, first pressure manifold 1 and the inside flow of second pressure manifold 2, and then the effectual flow path that increases the refrigerant improves the heat exchange efficiency of heat exchanger.

Optionally, the heat exchanger further includes a liquid inlet pipe 7, a first end of the liquid inlet pipe 7 is communicated with the end of the first collecting pipe 1, and a second end of the liquid inlet pipe 7 is an inlet of the refrigerant.

The liquid inlet pipe 7 is used for inputting the refrigerant into the first collecting pipe 1 so as to enable the refrigerant to enter the flat pipe 3.

The working process of the heat exchanger provided by the embodiment of the disclosure is briefly described as follows:

first, a foil 4 is provided, and a guiding groove 40 is formed in the aluminum foil through a stamping die.

Then, the foils 4 are disposed on the corresponding flat tubes 3, and the fin assemblies 5 are disposed on the corresponding foils 4.

Next, the above structures are brazed together to form a core structure, and the core structure is attached to the first header 1 and the second header 2 to form a heat exchanger.

Then, when the heat exchanger is used as an evaporator, when condensed water is condensed on the fin assembly 5, the condensed water can flow along the fins 51 and is discharged along the diversion trench 40 from one side of the foil 4 protruding out of the flat tube 3, so that the condensed water can be smoothly discharged, and the condensed water is prevented from being condensed between the fin assembly 5 and the flat tube 3 to influence the working effect of the heat exchanger.

The above description is intended to be exemplary only and not to limit the present disclosure, and any modification, equivalent replacement, or improvement made without departing from the spirit and scope of the present disclosure is to be considered as the same as the present disclosure.

Claims (10)

1. A heat exchanger is characterized by comprising a first collecting pipe (1), a second collecting pipe (2), a plurality of flat pipes (3), a plurality of foils (4) and a plurality of fin assemblies (5);

the first collecting pipe (1) and the second collecting pipe (2) are arranged in parallel;

the flat pipes (3) are arranged at intervals along the length direction of the first collecting pipe (1), one ends of the flat pipes (3) are communicated with the first collecting pipe (1), and the other ends of the flat pipes (3) are communicated with the second collecting pipe (2);

the plurality of foils (4) are respectively positioned between two adjacent flat pipes (3) and connected with the outer walls of the flat pipes (3), the side edges of the foils (4) are provided with guide grooves (40), the first ends of the guide grooves (40) are positioned in the middle of the foils (4), and the second ends of the guide grooves (40) extend towards the side edges of the foils (4);

the fin assemblies (5) are respectively located between two adjacent flat pipes (3), the fin assemblies (5) correspond to the foils (4) one by one, the fin assemblies (5) are connected with the corresponding foils (4), and the fin assemblies (5) are adjacent to the first ends of the guide grooves (40) of the corresponding foils (4).

2. The heat exchanger according to claim 1, wherein the guiding gutter (40) has a plurality;

the guide grooves (40) are sequentially arranged at intervals along the length direction of the foil (4).

3. The heat exchanger according to claim 1, characterized in that the flow channels (40) are V-shaped channels, the mouth of the flow channels (40) facing the corresponding fin assembly (5).

4. The heat exchanger according to claim 1, wherein the foil (4) comprises a connection tab (41) and a projecting bending tab (42);

the orthographic projection of the connecting sheet (41) on the flat pipe (3) is overlapped with the flat pipe (3), and the connecting sheet (41) is connected with the corresponding flat pipe (3);

the side edge of the convex bending piece (42) is connected with the side edge of the connecting piece (41), and the convex bending piece (42) protrudes out of the flat pipe (3);

the first end of the flow guide groove (40) is located at the joint between the protruding bending piece (42) and the connecting piece (41), and the second end of the flow guide groove (40) is located on the side edge of the protruding bending piece (42) far away from the connecting piece (41).

5. The heat exchanger according to claim 1, wherein the foil (4) is a composite aluminium integral structural member.

6. The heat exchanger according to any of claims 1 to 5, characterized in that the fin assembly (5) comprises a plurality of fins (51), the fins (51) being connected to the corresponding foils (4) along the length of the flat tubes (3).

7. The heat exchanger according to any of claims 1 to 5, characterized in that the fin assembly (5) is an aluminum structural member.

8. The heat exchanger according to any one of claims 1 to 5, wherein the first header pipe (1) has a plurality of first inserting holes (11) along its length direction, the second header pipe (2) has a plurality of second inserting holes (21) along its length direction, the first inserting holes (11) and the second inserting holes (21) correspond to each other one by one, and two ends of the flat pipe (3) are respectively inserted into the corresponding first inserting holes (11) and the corresponding second inserting holes (21).

9. The heat exchanger according to any one of claims 1 to 5, further comprising a plurality of baffles (6);

and one part of the plurality of partition plates (6) is positioned in the first collecting pipe (1) at intervals along the length direction of the first collecting pipe (1), and the other part of the plurality of partition plates (6) is positioned in the second collecting pipe (2) at intervals along the length direction of the second collecting pipe (2).

10. The heat exchanger according to any one of claims 1 to 5, further comprising a liquid inlet pipe (7), wherein a first end of the liquid inlet pipe (7) is communicated with the end of the first collecting pipe (1), and a second end of the liquid inlet pipe (7) is an inlet of the refrigerant.

Images