KR100901633B1 - Header for Heat Exchanger - Google Patents

Abstract

The present invention relates to a header for a heat exchanger, in which a header (3) includes a first header tank member (10) in which a plurality of refrigerant chambers (10a) are separated by a separating protrusion (12), and each refrigerant in the first header tank member. Composed of a plurality of second header tank member 20 coupled to the chamber (10a) to cover and communicate with each refrigerant chamber (10a), the first header tank member 10 according to a plurality of rows of the tube member (1) By forming in various ways, by combining the second header tank member 20 in combination, there is an effect of simply manufacturing a heat exchanger of a plurality of rows type.

In addition, since the refrigerant chambers 10a are separated by the side surfaces of the separating protrusions 12 of the first header tank member 10 and the second header tank member 20, the refrigerant flows therein, thereby reducing the flow area of the refrigerant flowing therein. It is to increase the pressure resistance according to the high pressure of the refrigerant.

In addition, when the first header tank member 10 and the second header tank member 20 are coupled to each other, the contact area due to the step difference of the structure is increased, thereby increasing the blazing, thereby enabling a robust assembly, and each first header tank member 10. ) And the second header tank member 20 are easy to process and assembly, thereby increasing productivity and economy.

Description

Header for Heat Exchanger {Header for Heat Exchanger}

1a to 1b are a perspective view and a cross-sectional view showing an embodiment of a header for a conventional heat exchanger

Figure 2 is a perspective view showing another embodiment of the conventional heat exchanger header

Figure 3 is an exploded perspective view showing the configuration of the present invention

Figure 4a is an exploded perspective view showing an embodiment of the present inventor header

4B-4C are cross-sectional views illustrating the structure of FIG. 4A.

Figure 5a is an exploded perspective view showing another embodiment of the present inventor header

FIG. 5B is a cross-sectional view showing the structure of FIG. 5A

Figure 6a is an exploded perspective view showing another embodiment of the present inventor header

FIG. 6B is a sectional view of the structure of FIG. 6A

Figure 7a is an exploded perspective view showing another embodiment of the present inventor header

FIG. 7B is a sectional view showing the structure of FIG. 7A

Figure 8a is an exploded perspective view showing another embodiment of the present inventor header

FIG. 8B is a cross-sectional view showing the structure of FIG. 8A

9a to 9b is an enlarged perspective view of the main portion showing an embodiment for fixing the coupling of the header of the present invention

* Description of the major symbols in the drawings *

1 tube member 2 fin member

3: header 10: first header tank member

11 tube connection hole 12 separation projection

20: second header tank member 21: outer header tank

22: first inner header tank 23: second inner header tank

30: tank fixing clip member 31: fixing clip

32: tank cover

The present invention relates to a header for a heat exchanger, and more particularly, a high pressure resistance against a high pressure of a refrigerant in a high pressure heat exchanger using a carbon dioxide refrigerant, and is designed to be easily expanded into a plurality of rows.

In general, a car can keep the indoors contaminated by the passenger's breathing, outdoor atmosphere, or external temperature change in a fresh state, or by cooling and heating the room temperature to maintain a comfortable temperature for the passenger's body. An air conditioning system is installed.

The air conditioner is provided with a heat exchanger installed in a vehicle for heating and cooling external air through heat exchange.

The heat exchanger is a fluid passing through the heat exchange inside, a plurality of tube members provided at intervals, a fin member mounted between the tube member to increase the area for transferring heat, coupled to both ends of the tube member And a pair of headers configured to communicate with each other and to pass a heat exchange fluid therein.

Conventional heat exchangers use a freon refrigerant as a refrigerant, but in recent years, the need for a heat exchanger using a carbon dioxide refrigerant to replace the ozone depleting substance, a freon refrigerant that is a warming material is increasing.

When carbon dioxide is used as a refrigerant, the discharge pressure of the high pressure side, that is, the compressor exceeds the critical pressure of the refrigerant, reaches 100 to 150 kgf / cm 2, so that a simple tubular header is difficult to firmly join the tube member, and to ensure pressure resistance. It is difficult to use a high pressure heat exchanger that withstands the high pressure of the carbon dioxide refrigerant.

The header of the high pressure heat exchanger is to reduce the internal flow area by separating the inside of the header into a plurality of flow space to increase the pressure resistance.

For example, as shown in FIGS. 1A to 1B, the header 3 has a plurality of tube coupling holes 100b coupled to the tube member 1 at intervals on one side thereof, and a refrigerant at a predetermined interval in the inner center thereof. A first header portion 100 having a communication hole 100c drilled therein is coupled to the first header portion 100, and the first header portion 100 is coupled to the first header portion 100. It includes a second header portion 101 protruding the second partition protrusion (101a) to be fixed to each other.

The first and second header parts 100 and 101 are coupled to each other to be divided into two flow spaces through the first and second partition protrusions 100a and 101a, and each flow space communicates with the refrigerant communication hole 100c. Will be.

As another example, as shown in FIG. 2, the header 3 is formed of one body and includes a header tank part 110 in which a plurality of tube coupling holes 111 are drilled at a predetermined interval, and the header tank part 110. It is coupled to the inside of the separation of the inside to both sides, the end of the tube plate 1 is inserted into the separation panel portion 112 is formed with a refrigerant communication slot (112a) for communicating the separated both sides.

The header tank 110 is divided into two flow spaces, the interior of which is divided into the separation panel 112, each flow space through the refrigerant communication slot 112a is inserted into the end of the tube member (1) It is communicating.

However, in the header structure of the conventional high pressure heat exchanger, when assembling the first and second header parts, a tube coupling hole and a refrigerant communication hole must be formed in order for the refrigerant to flow between the divided flow spaces. The hole is formed through the cutting process, and the tube coupling hole is manufactured through a number of machining processes to be formed by using a press working process, so that the increase in equipment required for processing and the manufacturing cost increase, and the productivity is low. .

In addition, in the case of inserting the separation panel part inside the header tank part, slots for inserting the tube plate and communicating with the refrigerant are formed at regular intervals through the cutting process in the separation panel, and the tube coupling holes must also be machined in the external header tank part. Since a large number of processing processes are required, an increase in equipment required for such a processing process is required, thereby increasing manufacturing costs and lowering productivity.

In addition, there is a problem that the deviation of the assembly occurs according to the degree of processing of the header tank portion and the separation panel portion, the defect rate is high, the assembly performance is lowered, and the brazing property is also bad.

In addition, the header structure of the conventional high pressure heat exchanger is for a single row, and when a heat exchanger having a plurality of tube members is manufactured, a separate header must be designed, resulting in additional manufacturing and production costs.

SUMMARY OF THE INVENTION An object of the present invention is to provide a heat exchanger header which reduces the flow area of the refrigerant to secure the pressure resistance to withstand the high pressure of the refrigerant, reduces the processing process to increase the assembly and productivity, and is easy to apply to a plurality of heat exchangers. .

The object of the present invention is a plurality of tube coupling holes are formed at intervals on one surface to be coupled to the tube member through which the fluid to be exchanged heat exchanged in the longitudinal direction therein is connected in the longitudinal direction to separate the plurality of refrigerant chambers A first header tank member provided with a separation protrusion formed with a groove;
One side end portion is inserted into the coupling coupling groove of the separation projection portion includes a plurality of second header tank member to cover each refrigerant chamber separated by the separation projection portion to form a communicating refrigerant chamber coupled to the tube member, ,
The second header tank member may protrude a first side portion coupled to one side end portion of the first header tank member on one side thereof, and an end portion of the second header tank member coupled to the connection coupling groove of the separation protrusion, and spaced apart from each other. And an outer header tank having a protruding second side portion protruded from the first refrigerant flow hole.

That is, the refrigerant chamber of the first header tank member is hermetically coupled to a plurality of second header tank members, and the refrigerant chambers communicate with each other to secure pressure resistance while reducing the flow area.

When described in detail with reference to the accompanying drawings a preferred embodiment of the present invention.

Figure 3 is an exploded perspective view showing the configuration of the present invention, a fin member is mounted between a plurality of tube members to form a heat exchanger body and the header of the present invention to both sides of the heat exchanger body coupled to the end of the tube member have.

Figure 4a is an exploded perspective view showing an embodiment of the header of the present invention, Figures 4b to 4c is a cross-sectional view showing the structure of Figure 4a, a one-column header structure formed with one row of tube coupling holes Figure 4b is a cross-sectional view 4C is a sectional view taken along the line AA ′ of FIG. 4B.

Figure 5a is an exploded perspective view showing another embodiment of the header of the present invention, Figure 5b is a cross-sectional view showing the structure of Figure 5a, the tube passage hole formed in two rows of refrigerant passages of the tube member coupled to each tube coupling hole Shows independently divided structures.

Figure 6a is an exploded perspective view showing another embodiment of the header of the present invention, Figure 6b is a cross-sectional view showing the structure of Figure 6a, the tube coupling refrigerant is formed in two rows of tube members coupled to the respective tube coupling holes The passage communicates and shows the structure connected.

Figure 7a is an exploded perspective view showing another embodiment of the header of the present invention, Figure 7b is a cross-sectional view showing the structure of Figure 7a, a tube coupling hole is formed in three rows and the tube member refrigerant coupled to each tube coupling hole The passages show independent structures.

Figure 8a is an exploded perspective view showing another embodiment of the header of the present invention, Figure 8b is a cross-sectional view showing the structure of Figure 8a, the tube coupling refrigerant formed in three rows of tube coupling holes coupled to each tube coupling hole The passage communicates and shows the structure connected.

9A to 9B are enlarged perspective views illustrating main parts of the present invention for fixing the coupling of the header of the present invention. FIG. 9A is an example of fixing with a plurality of fixing clips, and FIG. 9B covers the entire first and second header tank members. The example which is fixed by one tank cover is shown.

Hereinafter, as shown in FIG. 3, the heat exchanger of the present invention includes a plurality of tube members 1 through which a fluid passes, and a fin member 2 widening a heat exchange area between the tube members 1 is mounted. To form a heat exchanger body, and a header 3 for injecting and circulating fluid into the tube member 1 is mounted on both sides of the heat exchanger body.

The header 3 is connected to a fluid inlet pipe and a fluid discharge pipe for introducing heat exchange fluid, respectively.

That is, when the heat exchange fluid is introduced into the header 3 through the fluid inlet pipe, the heat exchange fluid passes through the respective tube members 1 and collects the heat exchange fluid to the other header 3, and then is discharged again through the fluid discharge pipe to be circulated. It has a structure.

The tube member (1), the fin member (2), the header (3) is made of an aluminum material having excellent thermal conductivity and light weight and high strength.

The heat exchanger is circulated to the whole of the heat exchanger body while the heat exchange fluid is introduced into the header (3) through the fluid inlet pipe connected to the header (3) and passes through the tube member (1). While heating the surrounding air, or to take the heat of the air to cool.

In addition, the heat-exchanged fluid circulating through the heat exchanger body is discharged back to the header (3) to be temporarily stored and then collected and discharged into the fluid discharge pipe to be circulated through the heating cycle or the cooling cycle.

Air heated or cooled by the heat exchanger is blown into the interior of the vehicle through the duct.

It is noted that such a heat exchanger is included in the configuration of the present invention in a conventionally known configuration.

The first header tank member 10 of the header 3 of the present invention has a plurality of tube coupling holes 11 to which the tube member 1 is coupled to one surface at intervals, and both sides thereof are protruded to form a refrigerant inside. It forms the thread 10a.

In addition, the first header tank member 10 is protruded in the longitudinal direction on the inner surface of the refrigerant chamber 10a and is provided with a separating protrusion 12 for separating a plurality of refrigerant chambers 10a, and the separating protrusion 12 Are spaced apart in accordance with the number of columns of the tube coupling holes 11 to separate the refrigerant chamber 10a into a plurality.

In addition, the separation protrusion 12 has a coupling coupling groove 12a coupled to one side end of the second header tank member 20 to be described later in the longitudinal direction, and the coupling coupling groove 12a is formed in the first, The second header tank having a width that can be inserted into two rows of coupling protrusions 40 provided at one side end of the header tank member 10 and the second header tank member 20 is connected to the separation protrusion 12. Blasting is improved by inserting and coupling one end portion of the member 20, respectively.

The second header tank member 20 has a first side portion 21a protruding from one side end of the first header tank member 10 on one side thereof, and coupled to the separation protrusion 12 on the other side thereof. And an outer header tank 21 protruding from the second side portion 21b through which the plurality of first refrigerant flow holes 21c are spaced apart.

In addition, the second header tank member 20 protrudes a first side portion 21a coupled to one side end of the first header tank member 10 on one side thereof, and the separation protrusion 12 on the other side thereof. An outer header tank 21 which engages and protrudes the second side surface portion 21b through which the plurality of first refrigerant flow holes 21c are spaced apart;

First and second coupling surface portions 22a and 22b respectively coupled to the separation protrusions 12 protrude on both sides thereof, and a second corresponding to the first refrigerant flow hole 21c in the first coupling surface portion 22a. And a first inner header tank 22 through which the refrigerant flow hole 22c is drilled.

In addition, the second header tank member 20 protrudes a first side portion 21a coupled to one side end of the first header tank member 10 on one side thereof, and the separation protrusion 12 on the other side thereof. An outer header tank 21 which is coupled to each other and protrudes from the second side surface portion 21b through which the plurality of first refrigerant flow holes 21c are formed;

Third and fourth engagement surface portions 23a and 23b coupled to the separation protrusions 12 respectively protrude on both sides thereof, and a plurality of agents corresponding to the first refrigerant flow hole 21c to the third engagement surface portion 23a. The third refrigerant flow hole 23c is bored, and includes a second inner header tank 23 in which a plurality of refrigerant communication holes 23d are bored in the fourth engagement surface portion 23b.

The first, second, and third refrigerant flow holes 21c, 22c, and 23c communicate with the tube coupling holes 11 so that the tube member 1 is coupled therein and is larger than the thickness of the tube member 1. It is preferred to be formed in width.

The tube member 1 is coupled to the tube coupling hole 11 so that an end thereof is coupled between the first and second refrigerant flow holes 21c and 22c or between the first and third refrigerant flow holes 21c and 23c. In this case, since a distance is generated between the tube member 1 and the first and second refrigerant flow holes 21c and 22c or the first and third refrigerant flow holes 21c and 23c, the welding material is introduced into the tube member 1. To prevent.

In the outer header tank 21, the thickness t1 of the first side portion 21a is formed to be thicker than the thickness t2 of the second side portion 21b to withstand the high pressure of the refrigerant chamber 10a, and the second side portion 21b is coupled to the other second side surface portion 21b, the first coupling surface portion 22a, and the third coupling surface portion 23a so as to secure a thickness with respect to the high pressure of the refrigerant chamber 10a.

The first side surface portion 21a of the first header tank member 10 and the outer header tank 21 has first and second stepped portions 10b and 21d symmetrically engaged with each other in the longitudinal direction. .

In addition, at the end of the second side surface portion 21b of the outer header tank 21, and the end of the first, second, third, and fourth engagement surface portions 22a, 22b, 23a, and 23b, a coupling groove of the separation protrusion 12 is provided. Coupling protrusions (40) consisting of the first, second, third, fourth, fifth coupling protrusions (41, 42, 43, 44, 45) coupled to (12a) is provided, the first, second, third, fourth, fifth The coupling protrusions 41, 42, 43, 44, and 45 are formed to be coupled in two rows by joining the two coupling protrusions 12a of the separation protrusion 12.

That is, the second side portion 21b of the outer header tank 21 is joined to the second side portion 21b of the other outer header tank 21 and coupled to the connection coupling groove 12a of the separation protrusion 12. In this case, the pair of first coupling protrusions 41 are coupled to the coupling coupling grooves 12a of the separation protrusion 12.

In addition, the second side portion 21b of the outer header tank 21 is joined to the first coupling surface portion 22a of the first inner header tank 22 and coupled to the coupling coupling groove 12a of the separation protrusion 12. The second coupling surface portion 22b of the first inner header tank 22 is joined to the second coupling surface portion 22b of the other first inner header tank 22 and coupled to the coupling coupling groove 12a of the separation protrusion 12. In this case, the first coupling protrusion 41, the second coupling protrusion 42, and the pair of third coupling protrusions 43 are coupled to the coupling coupling grooves 12a of the separation protrusions 12, respectively.

In addition, the second side portion 21b of the outer header tank 21 is joined to the third coupling surface portion 23a of the second inner header tank 23 to be coupled to the coupling coupling groove 12a of the separation protrusion 12. , The fourth engaging surface portion 23b of the second inner header tank 23 is joined to the fourth engaging surface portion 23b of the other second inner header tank 23 to the coupling coupling groove 12a of the separation protrusion 12. In this case, the first coupling protrusion 41, the fourth coupling protrusion 44, and the pair of fifth coupling protrusions 45 are coupled to the coupling coupling grooves 12a of the separation protrusions 12, respectively.

The second header tank member 20 selects and combines the outer header tank 21 and the first and second inner header tanks 22 and 23 according to the structure of the first header tank member 10 according to the heat exchanger design. The embodiment according to this will be described below.

As shown in FIGS. 4A to 4B, in the header 3 having a single-row tube structure in which the tube members 1 are coupled in a single row, one separation protrusion 12 protrudes from the inner side of the refrigerant chamber 10a. A first header tank member (10) in which two tubes are separated, and a tube coupling hole (11) of one row for coupling the tube member (1) to the refrigerant chamber (10a) is drilled;

The first and second side parts 21a and 21b protrude on both sides, the end of the first side part 21a is coupled to one side end of the first header tank member 10, and the second side part 21b of A pair of outer header tanks 21 having end portions coupled to the separating protrusions 12 and having a plurality of first refrigerant flow holes 21c bored therein for communicating the refrigerant chamber 10a to the second side portion 21b. do.

That is, the first side portion 21a of the pair of outer header tanks 21 is coupled to both sides of the first header tank member 10 as first and second stepped portions 10b and 21d, respectively. The second side portion 21b of the pair of outer header tanks 21 is coupled to the pair of first coupling protrusions 41 by the coupling coupling grooves 12a of the separation protrusions 12 so as to be joined to the first refrigerant flow holes 21c. The refrigerant chamber 10a is in communication with each other.

As shown in FIG. 4C, the first refrigerant flow hole 21c is formed to communicate with the tube coupling hole 11 so that an end portion of the tube member 1 coupled to the tube coupling hole 11 is partially engaged therein. Since a gap is generated between the combined tube member 1, the welding material is prevented from flowing into the tube. Although not shown, the second and third refrigerant flow holes 22c and 23c also have the first refrigerant flow hole 21c. Since it is formed to correspond to the above structure to prevent the welding material from flowing into the tube member (1).

Meanwhile, as shown in FIGS. 5A to 5B, the header 3 having a two-row tube structure in which the tube members 1 are coupled in two rows and the internal refrigerant chamber 10a of each row is independent has a predetermined interval on the inner surface thereof. Three separation projections 12 are projected to separate the refrigerant chamber 10a into four, and the tube coupling holes 11 in two rows to couple the tube members 1 in each row to two separate refrigerant chambers 10a. A first header tank member 10 having a hole);

The first and second side parts 21a and 21b protrude on both sides, the end of the first side part 21a is coupled to one side end of the first header tank member 10, and the second side part 21b of A pair of outer header tanks 21 having end portions coupled to the separation protrusions 12 but having a plurality of first refrigerant flow holes 21c for communicating the refrigerant chamber 10a to the second side surface portion 21b;

First and second coupling surface portions 22a and 22b respectively coupled to the separation protrusions 12 protrude on both sides thereof, and a second corresponding to the first refrigerant flow hole 21c in the first coupling surface portion 22a. And a pair of first inner header tanks 22 through which refrigerant flow holes 22c are drilled.

That is, the first side portion 21a of the pair of outer header tanks 21 is coupled to both sides of the first header tank member 10 as first and second stepped portions 10b and 21d, respectively, The second side portion 21b of the header tank 21 is coupled to the connection coupling groove 12a of the separation protrusion 12.

In addition, a pair of the first inner header tank 22 is coupled between the outer header tank 21, the pair of first inner header tank 22 is each of the first coupling surface portion (22a) The second side surface portion 21b is joined to the coupling coupling groove 12a of the separation protrusion 12 by joining, and each of the second coupling surface portions 22b is coupled to each other to connect the coupling of the separation protrusion 12 protruding from the center. It is to join together in the groove (12a).

Accordingly, the header 3 has two pairs of coolant chambers 10a in which the tube members 1 are coupled to the pair of outer header tanks 21 and the first inner header tanks 22, and the coolant chambers in the two rows are formed. 10a is divided into 2nd engaging surface part 22b of the said 1st inner header tank 22, and is independent.

As shown in FIGS. 6A to 6B, the header member 3 having a two-row tube structure in which the tube members 1 are coupled in two rows and the internal coolant chamber 10a of each row communicates has a predetermined interval on the inner side thereof. The two separation projections 12 protrude to separate the refrigerant chambers 10a into four, and two rows of tube coupling holes 11 are coupled to the two refrigerant chambers 10a to couple the tube members 1 in each row. A perforated first header tank member 10;

The first and second side parts 21a and 21b protrude on both sides, the end of the first side part 21a is coupled to one side end of the first header tank member 10, and the second side part 21b of A pair of outer header tanks 21 having end portions coupled to the separation protrusions 12 but having a plurality of first refrigerant flow holes 21c for communicating the refrigerant chamber 10a to the second side surface portion 21b;

Third and fourth engagement surface portions 23a and 23b coupled to the separation protrusions 12 respectively protrude on both sides thereof, and a plurality of agents corresponding to the first refrigerant flow hole 21c to the third engagement surface portion 23a. The third refrigerant flow hole 23c is bored, and includes a second inner header tank having a plurality of refrigerant communication holes 23d bored through the fourth engagement surface portion 23b.

That is, the first side portion 21a of the pair of outer header tanks 21 is coupled to both sides of the first header tank member 10 as first and second stepped portions 10b and 21d, respectively, The second side portion 21b of the header tank 21 is coupled to the connection coupling groove 12a of the separation protrusion 12.

In addition, a pair of second inner header tanks 23 are coupled between the outer header tanks 21, and the pair of second inner header tanks 23 have respective third coupling surface portions 23a. The second side portion 21b is joined to the coupling coupling groove 12a of the separation protrusion 12 by joining, and each of the fourth coupling surface portions 23b is coupled to each other and is coupled to the connection of the separation protrusion 12 protruding from the center. Coupling together in the groove (12a).

Accordingly, the header 3 has two pairs of coolant chambers 10a in which the tube members 1 are coupled to the pair of outer header tanks 21 and the first inner header tanks 22, and the coolant chambers in the two rows are formed. 10a communicates with the plurality of refrigerant communication holes 23d formed in the fourth engagement surface portion 23b of the second inner header tank 23.

Meanwhile, as shown in FIGS. 7A to 7B, the header member 3 having a three-row tube structure in which the tube members 1 are coupled in three rows and the internal refrigerant chamber 10a of each row is independent has a predetermined interval on the inner surface thereof. Five separation protrusions 12 are protruded to separate the refrigerant chamber 10a into six, and the tube coupling holes 11 in three rows to couple the tube members 1 in one row per two separated refrigerant chambers 10a. The perforated first header tank member 10;

The first and second side parts 21a and 21b protrude on both sides, the end of the first side part 21a is coupled to one side end of the first header tank member 10, and the second side part 21b of A pair of outer header tanks 21 having end portions coupled to the separation protrusions 12 but having a plurality of first refrigerant flow holes 21c for communicating the refrigerant chamber 10a to the second side surface portion 21b;

First and second coupling surface portions 22a and 22b respectively coupled to the separation protrusions 12 protrude on both sides thereof, and a second corresponding to the first refrigerant flow hole 21c in the first coupling surface portion 22a. The coolant flow hole 22c includes two pairs of the first inner header tanks 22.

That is, the first side portion 21a of the pair of outer header tanks 21 is coupled to both sides of the first header tank member 10 as first and second stepped portions 10b and 21d, respectively, The second side portion 21b of the header tank 21 is coupled to the connection coupling groove 12a of the separation protrusion 12.

In addition, two pairs of first inner header tanks 22 are coupled between the outer header tanks 21, and the pair of first inner header tanks 22 respectively connect the first coupling surface portions 22a. Joining to the second side surface portion 21b to be coupled to the coupling coupling groove 12a of the separation protrusion 12, each of the second coupling surface portion 22b of the coupling protrusion of the separation protrusion 12 located on both sides ( 12a) together.

In addition, the other pair of first inner header tanks 22 engage the first coupling surface portions 22a to the coupling coupling grooves 12a of the separation protrusions 12 protruding from the center thereof, and each second coupling The surface portion 22b is in close contact with the second coupling surface portion 22b of the first inner header tank 22 connected to the outer header tank 21 to be coupled together to the coupling coupling groove 12a of the separation protrusion 12. will be.

Accordingly, the header 3 includes two pairs of refrigerant chambers 10a in which the tube members 1 are coupled to the pair of outer header tanks 21 and the first inner header tank 22, and a pair of first One row of refrigerant chambers 10a into which the tube member 1 is coupled to the inner header tank 22 is formed, and the three rows of refrigerant chambers 10a have a second engagement surface portion of the first inner header tank 22. It is divided into 22b, and becomes independent.

As shown in FIGS. 8A to 8B, the header member 3 having a two-row tube structure in which the tube members 1 are coupled in two rows and the internal coolant chamber 10a of each row is in communication has a predetermined interval on the inner side thereof. The three separation projections 12 are protruded to separate the refrigerant chamber 10a into six, and three rows of tube coupling holes 11 are drilled to couple the tube members 1 in one row per two separated refrigerant chambers 10a. A first header tank member (10);

The first and second side parts 21a and 21b protrude on both sides, the end of the first side part 21a is coupled to one side end of the first header tank member 10, and the second side part 21b of A pair of outer header tanks 21 having end portions coupled to the separation protrusions 12 and having a plurality of first refrigerant flow holes 21c for communicating the refrigerant chamber 10a to the second side surface portion 21b;

Third and fourth engagement surface portions 23a and 23b coupled to the separation protrusions 12 respectively protrude on both sides thereof, and a plurality of agents corresponding to the first refrigerant flow hole 21c to the third engagement surface portion 23a. It includes two pairs of second inner header tanks in which three refrigerant flow holes 23c are drilled and a plurality of refrigerant communication holes 23d are drilled in the fourth engagement surface portion 23b.

As described above, when the header 3 is manufactured correspondingly in a heat exchanger having a plurality of rows of the tube member 1, the second header tank member according to the shape of the first header tank member 10 is formed as described above. 20), that is, it can be produced simply by the combination of the outer header tank 21 and the inner header tank 22.

That is, the first side portion 21a of the pair of outer header tanks 21 is coupled to both sides of the first header tank member 10 as first and second stepped portions 10b and 21d, respectively, The second side portion 21b of the header tank 21 is coupled to the connection coupling groove 12a of the separation protrusion 12.

In addition, two pairs of second inner header tanks 23 are coupled between the outer header tanks 21, and the pair of second inner header tanks 23 respectively connect the third coupling surface portions 23a. Joining to the second side surface portion 21b to be coupled to the coupling coupling groove 12a of the separation protrusion 12, each of the fourth coupling surface portion 23b coupling coupling groove of the separation protrusion (12) located on both sides ( 12a) together.

In addition, the other pair of second inner header tank 23 is engaged with the coupling coupling groove 12a of the separation protrusion 12 protruding from the center by joining the third coupling surface portion 23a. The surface portion 23b is brought into close contact with the fourth coupling surface portion 23b of the second inner header tank 22 connected to the outer header tank 21 to be coupled together to the coupling coupling groove 12a of the separation protrusion 12. It is to let.

Accordingly, the header 3 has a pair of coolant chambers 10a in which a tube member 1 is coupled to the pair of outer header tanks 21 and the second inner header tank 23, and a pair of second headers is formed. One row of refrigerant chambers 10a to which the tube member 1 is coupled to the inner header tank 23 is formed, and the three rows of refrigerant chambers 10a have a fourth coupling surface portion of the second inner header tank 23. The plurality of refrigerant communicating holes 23d formed in 23b communicate with each other.

According to the present invention, a first header tank member 10 suitable for a plurality of rows of tube members 1 is manufactured, and according to the type of the first header tank member 10, the second header tank member 20, that is, By combining the outer header tank 21 and the inner header tank 22, a variety of heat exchangers of a plurality of rows can be easily manufactured.

In addition, since each side of the second header tank member 20 is joined to each other, the second header tank member 20 has a thickness to withstand the high pressure of the refrigerant, and the coupling area between each side to be connected and the end is widened, so that the blazing is increased, thereby enabling a solid assembly. Will be done.

In addition, the header 3 can be easily molded into a suitable integral shape according to a plurality of rows of the tube member 1, thereby simplifying the processing process and increasing productivity.

Meanwhile, as shown in FIGS. 9A to 9B, the header 3 surrounds and combines the first and second header tank members 10 and 20 to engage the first and second header tank members 10 and 20. It further includes a tank fixing clip member 30 for supporting.

The tank fixing clip member 30 is formed in a 'c' shape surrounding the first and second header tank members 10 and 20, and a fixed clip 31 or a tank cover having a locking jaw 30a formed at an end thereof. 32).

The fixing clip 31 is a part of the first and second header tank member (10, 20) coupled to be wrapped around the locking jaw (30a) and fixed, the tank cover 32 is coupled to the first and second header tank Wrapped around the entire circumference of the locking jaw (30a) to be fixed.

The fixing clip 31 and the tank cover 32 increase the pressure resistance by increasing the bonding force and the blazing of the first and second header tank members 10 and 20.

According to the configuration of the present invention described above, the first header tank member is formed in various ways according to a plurality of rows of tube members, and three types of second header tanks are provided on the first header tank member using three types of second header tank members. By joining the members, there is an effect of being able to manufacture a heat exchanger of a plurality of rows simply.

In addition, since each refrigerant chamber is separated into a side facing the separation protrusion of the first header tank member and the second header tank member, the refrigerant chamber reduces the flow area of the refrigerant flowing therein, thereby increasing the pressure resistance according to the high pressure of the refrigerant. will be.

In addition, when the first header tank member and the second header tank member are coupled to each other, the contact area due to the step difference is wider, and thus the blazing is increased, thereby enabling a robust assembly. Simple machining process and assembly is effective to increase productivity and economics.

Claims (9)

delete delete A plurality of tube coupling holes (11) to which the tube member (1) through which the heat exchanged fluid passes passes is formed in a plurality at intervals on one surface thereof, and are protruded in the longitudinal direction to separate the refrigerant chamber (10a) into a plurality of longitudinal directions. A first header tank member 10 having a separation protrusion 12 having a connection coupling groove 12a formed therein; One side end is inserted into the coupling coupling groove 12a of the separation protrusion 12 to be coupled to cover each refrigerant chamber 10a separated by the separation protrusion 12, but the tube member 1 is in communication with each other. It includes a plurality of second header tank member 20 to form a refrigerant chamber (10a), The second header tank member 20 has a first side portion 21a protruding to one side end portion of the first header tank member 10 on one side thereof, and an end portion thereof on the other side thereof. The second side portion 21b which is coupled to the coupling coupling groove 12a of the second hole, and communicates with the tube coupling hole 11 at intervals so that a plurality of first refrigerant flow holes 21c to which the tube member 1 is coupled are drilled. Heat exchanger header, characterized in that it comprises a protruding outer header tank (21). The method according to claim 3, The first header tank member 10 is provided with a plurality of separation projections 12 having a connection coupling groove 12a in the longitudinal direction, The second header tank member 20 has first and second coupling surface portions 22a and 22b protruding from both sides of the second header tank member 20 respectively coupled to the coupling coupling grooves 12a of the separation protrusion 12. A first, corresponding to the first refrigerant flow hole 21c on the surface portion 22a, and in communication with the tube coupling hole 11 and having a plurality of second refrigerant flow holes 22c to which the tube member 1 is coupled; Header for heat exchanger further comprises an inner header tank (22). The method according to claim 3, The first header tank member 10 is provided with a plurality of separation projections 12 having a connection coupling groove 12a in the longitudinal direction, The second header tank member 20 has third and fourth coupling surface portions 23a and 23b protruding from each other to the separation protrusions 12 on both sides thereof, and the first refrigerant flows through the third coupling surface portion 23a. A plurality of third refrigerant flow holes 23c corresponding to the holes 21c and communicating with the tube coupling holes 11 are coupled to the tube members 1, and a plurality of refrigerants are formed in the fourth coupling surface portions 23b. And a second inner header tank (23) through which communication holes (23d) are drilled. The method according to claim 3, First and second stepped portions 10b and 21d symmetrically engaged with each other in the longitudinal direction to one side end portion of the first header tank member 10 and the first side portion 21a end portion of the outer header tank 21, respectively. Heat exchanger header, characterized in that provided. delete The method according to claim 3, The second side portion 21b of the outer header tank 21 has a coupling protrusion 40 coupled to the coupling coupling groove 12a of the separation protrusion 12 in two rows at an end thereof. . The method according to claim 3, It is characterized in that it further comprises a tank fixing clip member 30 for supporting the coupled state of the first and second header tank member (10, 20) by wrapping the first and second header tank member (10, 20) Header for heat exchanger.

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