KR100440089B1 - Heat exchanger for air conditioner - Google Patents

Abstract

The present invention has a plurality of fins arranged in parallel along the plate surface direction, a plurality of heat transfer tubes that are in close contact with each of the pins through the plurality of pins, and a plurality of connection pipes that partially connect the ends of the heat transfer tubes. A heat exchanger for an air conditioner, comprising: a plurality of circuits (circuits) formed in the upper and lower units, the upper and lower units coupled to each other along a vertical direction with a plurality of circuits (Circuit) partitioning the flow path of the refrigerant; Is characterized in that they correspond to each other evenly.

Accordingly, each circuit of the upper and lower units (Circuit) of each unit (Circuit) can be equalized to each other to improve the cooling and heating performance and achieve a stable flow of the refrigerant.

In addition, by manufacturing each circuit of the upper and lower units (Circuit) the same, it is possible to improve the productivity and reduce the management loss (Loss) for manufacturing each circuit (Circuit).

Description

Heat exchanger for air conditioner

The present invention relates to a heat exchanger of an air conditioner, and more particularly, to each circuit of the upper and lower units by equalizing each circuit (Circuit) to improve the heating and cooling performance and to achieve a stable refrigerant flow heat exchanger It is about.

In general, during the cooling operation of the air conditioner including the indoor unit 10 and the outdoor unit 20 (arrow “A” direction), as shown in FIG. 1, the high-temperature, high-pressure refrigerant gas discharged from the compressor 12 is outdoors. Heat exchanged with the outdoor air as it is cooled and condensed in the heat exchanger (14).

That is, the liquefied high-pressure refrigerant is introduced into the expansion valve 16, the high-pressure refrigerant introduced into the expansion valve 16 is converted into a low-pressure refrigerant by the adiabatic expansion effect of the expansion valve 16, the indoor side heat exchanger 18 Flows into.

The refrigerant in the indoor side heat exchanger (18) is converted into refrigerant gas by a heat exchange action that cools the indoor air while evaporating, and the refrigerant gas is repeatedly introduced into the compressor (12) and compressed to a high temperature and high pressure. do.

On the contrary, during the heating operation of the air conditioner (arrow "B" direction), a heat exchange action of heating the indoor air in the indoor side heat exchanger 18 while performing the aforementioned refrigerant cycle in the reverse direction is performed.

Hereinafter, the heat exchanger is not limited to any one of the outdoor side heat exchanger 14 and the indoor side heat exchanger 18.

However, for the description of the reference numerals, the indoor side heat exchanger 18 will be described.

In the heat exchanger 18 for the conventional air conditioner, as shown in FIG. 2, a plurality of plate-shaped fins 21 having a predetermined area are arranged in parallel, and each fin 21 has a plurality of heat transfer tubes 22. It penetrates and is in close contact with each pin 21.

At the end of the heat transfer pipe 22, a connection pipe 23 (cross flow) having a U shape is partially connected by welding or the like.

These heat transfer pipes 22 and the connection pipes 23 form a pass through which a refrigerant flows.

In the conventional heat exchanger 18, the connection structure of the heat exchanger tube 22 and the connection tube 23 is arrange | positioned in two rows in the vertical direction.

In addition, the upper and lower units 18a and 18b are separated along the vertical direction, and two circuits 25a and 25b circuits are formed in the upper unit 18a, and three circuits 25c and 25c are formed in the lower unit 18b. 25d, 25e, and Circuit) are provided.

Nine connectors 23 are provided in the first circuit 25a of the upper unit 18a to form 10 passes, and seven connectors 23 are provided in the second circuit 25b to 8 passes. (Pass).

In addition, nine connecting pipes 23 are provided in the third through fifth circuits 25c to 25e of the lower unit 18b to form 10 passes.

When the refrigerant flows in from the upper left end of the first circuit 25a of the upper unit 18a in the heat exchanger 18 for the air conditioner, the introduced refrigerant flows out of the lower right end of the first circuit 25a.

Similarly, the second circuits to the fifth circuits 25b to 25e also form a flow path of the same coolant as the first circuit 25a to achieve heat exchange.

However, in the conventional heat exchanger for an air conditioner, the circuits of the upper and lower units are not equal to each other, and thus the cooling and heating performance is not reduced, and stable refrigerant flow cannot be achieved.

In addition, since each circuit (Circuit) of the upper and lower units (Circuit) is not equal to each other to be manufactured separately, the productivity is reduced and the management loss (Loss) is generated that much.

Accordingly, the present invention has been made to solve the above problems in a more preferred direction, the object of the present invention is to equalize each circuit of the upper and lower units (Circuit) to improve the heating and cooling performance and stable refrigerant flow To provide a heat exchanger for an air conditioner to achieve this.

In addition, another object of the present invention is to manufacture each circuit of the upper and lower units in the same (Circuit), the air conditioning to improve productivity and reduce the management loss (Loss) by manufacturing each circuit (Circuit) To provide a heat exchanger for the air.

1 is a system diagram of a general air conditioner,

2 is a side view of a conventional heat exchanger viewed from different angles,

3 is a side view of a heat exchanger according to the present invention.

* Description of the symbols for the main parts of the drawings *

118: heat exchanger 118a: upper unit

118b: lower unit 122: heat transfer pipe

123: connector 125a to 125f: first to sixth circuit

The present invention for achieving the above object, a plurality of fins arranged in parallel along the plate surface direction, a plurality of heat transfer pipes to be maintained in close contact with each of the fins through the plurality of fins, and the end of the heat transfer pipe partially A heat exchanger for an air conditioner having a plurality of connecting pipes connected to each other, the heat exchanger comprising: upper and lower units coupled to each other along a vertical direction with a plurality of circuits that divide a flow path of a refrigerant, wherein the upper and lower units A plurality of circuits (Circuit) formed in the is achieved by the heat exchanger for the air conditioner, characterized in that corresponding to each other evenly.

Here, the upper unit includes a first circuit that is provided with five cross flows to form a 10 pass, and a second circuit that is formed with three connectors to form an eight pass, and five connections. The tube is provided with a third circuit to form a six pass (Pass), the lower unit is provided with five cross flow (four cross flow) to the fourth circuit to form a 10 pass (pass) and three connectors are provided It has a fifth circuit which forms an eight pass, and a sixth circuit which consists of five connection pipes and forms a six pass.

In this case, the first and fourth circuits, the second and fifth circuits, and the third and sixth circuits are equally disposed, respectively.

The upper and lower units may be coupled by at least one of a clip or a cable tie.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

3 is a side view of a heat exchanger according to the present invention.

As shown in this figure, the heat exchanger 118 for an air conditioner according to the present invention, like a conventional heat exchanger, a plurality of plate-like fins 121 having a predetermined area is arranged in parallel, each fin 121 ), A plurality of heat transfer tubes 122 penetrate and closely contact the fins 121.

The end portion of the heat transfer pipe 122 is connected to a connection pipe 123 (cross flow) that is partially U-shaped by welding or the like.

These heat transfer pipes 122 and the connection pipes 123 form a pass through which the refrigerant flows.

In the heat exchanger 118 according to the present invention, the connection structure of the heat transfer pipe 122 and the connection pipe 123 is arranged in two rows in the vertical direction.

In addition, the upper and lower units 118a and 118b are separated along the vertical direction, and the upper and lower units 118a and 118b are provided with a plurality of circuits 125a to 125f that separate the flow path of the refrigerant.

Three circuits 125a, 125b, 125c, and circuits are formed in the upper unit 118a, and three circuits 125d, 125e, 125f, and circuits are provided in the lower unit 118b, and an upper unit ( 118a) and the lower unit 118b have taken an equal structure with each other.

That is, the first circuit 125a of the upper unit 118a to be described later has the same structure as the fourth circuit 125d of the lower unit 118b, and the second and third circuits 125b of the upper unit 118a, 125c has the same structure as that of the fourth and fifth circuits 125e and 125f of the lower unit 118b, respectively.

Accordingly, the heat exchanger 118 is manufactured by manufacturing only one of the upper unit 118a and the lower unit 118b and arranging them in a vertical direction, and then connecting them with a clip or a cable tie. Can greatly increase productivity.

In addition, since the upper unit 118a and the lower unit 118b have the same structure, the management loss of the heat exchanger 118 can be reduced.

Five connecting pipes 123 are provided in the first circuit 125a of the upper unit 118a to form a 10 pass, and three connecting pipes 123 are provided in the second circuit 125b. (Pass).

In addition, five connecting pipes 123 are provided in the third circuit 125c to form six passes.

The lower unit 118b also has the same structure as the upper unit 118a.

That is, five connecting pipes 123 are provided in the fourth circuit 125d to form ten passes, and three connecting pipes 123 are provided in the fifth circuit 125e to provide eight passes. Achieve.

In addition, five connection pipes 123 are provided in the sixth circuit 125f to form six passes.

When the refrigerant flows from the heat transfer pipe 122a of the upper left end of the first kit 125a of the upper unit 118a in the heat exchanger 118 for the air conditioner configured as described above, the introduced refrigerant is transferred to each heat transfer pipe of the first circuit 125a. Through the 122 and the connection pipes 123 is discharged to the heat transfer pipe (122b) of the lower right.

The refrigerant introduced through the heat transfer pipe 122c at the upper left end of the second circuit 125b of the upper unit 118a is transferred to the heat transfer pipes at the lower right end through the respective heat transfer pipes 122 and the connection pipes 123 of the second circuit 125b. It flows out to 122d.

The refrigerant introduced through the heat transfer pipe 122e at the upper left end of the third circuit 125c is transferred to the heat transfer pipe 122f at the lower right through the heat transfer pipes 122 and the connection pipes 123 of the third circuit 125c. Spills.

Meanwhile, the flow path of the refrigerant to the fourth to sixth circuits 125d to 125f in the same manner as the refrigerant flow of the first to third circuits 125a to 125c of the upper unit 118a also in the lower unit 118b. While forming the heat exchange action.

Therefore, it is possible to achieve a stable flow of the refrigerant can improve the cooling and heating performance.

As described above, according to the present invention, the circuits 125a to 125f of the upper and lower units 118a and 118b are equally arranged to each other to improve the cooling and heating performance and achieve a stable refrigerant flow.

In addition, by manufacturing the circuits 125a to 125f of the upper and lower units 118a and 118b in the same manner, it is possible to improve productivity and reduce management losses due to manufacturing the circuits 125a to 125f. have.

As described above, according to the present invention, the circuits of the upper and lower units are equalized to each other, thereby improving air-conditioning performance and achieving a stable flow of refrigerant.

In addition, by manufacturing each circuit of the upper and lower units (Circuit) the same, there is an effect that can improve the productivity and reduce the management loss (Loss) for manufacturing each circuit (Circuit).

Claims (4)

For air conditioner having a plurality of fins arranged in parallel along the plate surface direction, a plurality of heat transfer tubes that are in close contact with each of the pins through the plurality of pins, and a plurality of connecting pipes to partially connect the ends of the heat transfer tubes In the heat exchanger, It includes a plurality of circuits (Circuit) for partitioning the flow path of the refrigerant comprises a top and bottom units coupled to each other in the vertical direction, a plurality of circuits (Circuit) formed in the upper and lower units correspond to each other evenly Heat exchanger for air conditioner. The method of claim 1, The upper unit includes a first circuit that is provided with five cross flows to form a 10 pass, a second circuit that has three connections to form an eight pass, and five connectors. Has a third circuitry to form a six pass, The lower unit has a fourth circuit that is provided with five cross flows to form a 10 pass, a fifth circuit that has three connections to form an eight pass, and five connectors. A heat exchanger for an air conditioner, having a sixth circuitry provided to form a six pass. The method of claim 2, And the first and fourth circuits, the second and fifth circuits, and the third and sixth circuits are equally arranged to correspond to each other. The method of claim 1, And the upper and lower units are coupled by at least one of a clip or a cable tie.