KR100976130B1 - Heat exchanger with receiver drier and manufacturing method thereof - Google Patents

Abstract

According to the invention, a plurality of tubes arranged in parallel with each other; A heat dissipation fan disposed between the tubes; First and second header pipes having a header into which both ends of the plurality of tubes are inserted inward and a tank coupled to the header; A baffle disposed inside the second header pipe and having a protrusion projecting through a baffle protrusion insertion hole formed in a tank of the second header pipe; Is joined to one side of the second header pipe, the baffle projection insertion portion that can be inserted into the projection of the baffle, the outlet of the heat exchange medium formed in the second header pipe, the inlet corresponding to the inlet and the outlet There is provided a heat exchanger having a receiver dryer; having a tank of the receiver dryer formed.

Heat Exchanger, Baffle, Receiver Drier

Description

Heat exchanger with receiver drier and manufacturing method thereof

1 shows a typical example of a heat exchanger having a receiver driver on one side.

Shown in FIG. 2 is a schematic exploded perspective view of the receiver drier shown in FIG. 1.

3 shows in schematic cross-sectional view the connection structure between the header pipe of the heat exchanger and the receiver dryer.

4 is a schematic exploded perspective view of a part of a heat exchanger with a receiver drier according to the invention.

5 is a perspective view schematically showing the overall structure of the heat exchanger shown in FIG. 4.

6a and 6b show, respectively, in cross-section the state before and after coupling the tank of the receiver drier to the tank of the header pipe.

<Brief Description of Major Codes in Drawings>

41.Header 42.Tank

43. Tank of receiver drier 45. Baffle

The present invention relates to a heat exchanger having a receiver drier and a manufacturing method thereof, and more particularly to a heat exchanger provided with a receiver drier attached to a header pipe of a heat exchanger, and a manufacturing method thereof. It is about.

In general, a heat exchanger used as a condenser of an automotive air conditioner passes a heat exchange medium (refrigerant) in a gaseous phase into a tube in contact with a heat dissipation fan to exchange heat with flow air contacting the tube and the surface of the heat dissipation fan. Liquefy. A receiver dryer or an accumulator dryer may be installed at one side of the heat exchanger, which has a function of storing a condensed liquid heat exchange medium, and has a filter therein, which is generated by corrosion of moisture and metals from the refrigerant. It is to perform the function of filtering foreign matters and maintaining the gaseous heat exchange medium flowing from the condenser until the liquid is liquefied.

1 shows a typical example of a heat exchanger having a receiver driver on one side.

Referring to the drawings, the heat exchanger 10 used as a condenser includes a pair of header pipes 11 and 12 installed in parallel with each other and a plurality of tubes in which both ends thereof communicate with the header pipes 11 and 12. 17 and a heat dissipation fin 14 disposed between the tubes 17. The heat exchange medium supplied from the supply pipe 5 is a meandering passage formed by the header pipes 11 and 12 and the tubes 17 inside the header pipes 11 and 12 so as to meander the discharge pipe 6. Baffles (not shown) are formed to allow communication. And a receiver dryer 20 is installed in the header pipe 12 of the one side. The heat exchange medium flowing inside the heat exchanger 10 flows into the receiver dryer 20 through the inflow connector 33a and then flows back to the heat exchanger 10 through the outflow connector 33b after a predetermined action. do.

Shown in FIG. 2 is a schematic exploded perspective view of the receiver drier shown in FIG. 1.

Referring to the drawings, the receiver dryer 20 has a receiver tank 13 having an upper cap 28 coupled to the upper end and a lower cap 23 coupled to the lower end. Holes corresponding to the inlet connector 13a and the outlet connector 13b of the heat exchange medium are formed in the upper and lower outer circumferential surfaces of the receiver tank 13. Further, a baffle 34 provided with a filter for filtering foreign matter from the heat exchange medium is provided between the hole corresponding to the inflow connector 13a disposed below and the hole corresponding to the outlet connector 33b. The baffle 34 is installed by being brazed after being inserted through the insertion hole 27 formed on the outer circumferential surface of the receiver tank 13.

The desiccant storage container 21 is mounted inside the receiver tank 13, and the desiccant storage container 21 is formed by insert injection of a synthetic resin material having a plurality of openings, or by inserting a metal mesh into an insert injection or a metal mesh. Can be done.

On the other hand, a lower cap 23 for sealing the receiver tank 13 is coupled to the lower surface of the receiver tank 13. The lower cap 23 may seal the open lower portion of the receiver tank 13 through the packing 22. The lower cap 23 may be fixed by the pin 24 inserted from the outside through the hole formed in the receiver tank 13 and inserted into the hole formed in the lower cap 23.

3 shows in schematic cross-sectional view the connection structure between the header pipe of the heat exchanger and the receiver dryer.

As can be seen in the figure, the header pipe 12 and the tank 13 of the receiver drier are interconnected via connectors 13a and 13b. The connectors 13a and 13b are hollow so as to not only distribute heat exchange medium through passages therein but also serve to maintain the receiver dryer tank 13 on one side of the header pipe 12. . In the connection structure of the conventional heat exchanger and the receiver drier described with reference to FIGS. 1 to 3, since the connectors 13a and 13b are used, the overall volume and weight are increased. This is because the connectors 13a and 13b must have a predetermined length in order to perform the brazing process, and a flow passage of the heat exchange medium must be secured inside. Therefore, there is a problem that the mounting structure of the receiver dryer using the connector inhibits the overall system integration.

On the other hand, Japanese Patent Laid-Open Publication No. Hei 8-183325, Japanese Patent Laid-Open Publication No. Hei 4-203774, and Japanese Utility Model Publication No. Hei 4-97265 disclose a connection structure of a receiver dryer and a heat exchanger. Many of them have disadvantages due to failure of device integration or manufacturing process problems.

The present invention has been made to solve the above problems, and the present invention provides an improved heat exchanger having a receiver drier.

Another object of the present invention is to provide a method for producing an improved heat exchanger with a receiver drier.

In order to achieve the above object, according to the present invention, a plurality of tubes arranged in parallel with each other; A heat dissipation fan disposed between the tubes; First and second header pipes having a header into which both ends of the plurality of tubes are inserted inward and a tank coupled to the header; A baffle disposed inside the second header pipe and having a protrusion projecting through a baffle protrusion insertion hole formed in a tank of the second header pipe; Is joined to one side of the second header pipe, the baffle projection insertion portion that can be inserted into the projection of the baffle, the outlet of the heat exchange medium formed in the second header pipe, the inlet corresponding to the inlet and the outlet There is provided a heat exchanger having a receiver dryer; having a tank of the receiver dryer formed.

According to one aspect of the invention, the desiccant storage container inserted into the receiver dryer; And a baffle having a filter that is inserted through a baffle insertion hole formed in a tank of the receiver dryer to support the desiccant storage container and filters foreign substances of the heat exchange medium.

According to another feature of the invention, the tank of the first and the second header pipe and the receiver dryer is provided with a receiver dryer, characterized in that closed by the upper cap and the lower cap, respectively installed on the top and bottom. do.

In addition, according to the present invention, a plurality of baffles having protrusions are installed in an inner space of a first header of the heat exchanger and a second header pipe which is one of the second header pipes, and the protrusions are formed in the second header pipe. Protruding outwardly through; A baffle protrusion formed in the tank of the receiver dryer by bringing the outlet of the heat exchange medium formed in the second header pipe, the inlet corresponding to the inlet, and the tank of the receiver dryer having the outlet close to the second header pipe. Inserting into the insertion hole; And brazing the tank of the header pipe and the receiver drier. There is provided a method of manufacturing a heat exchanger having a receiver drier.

Further, according to the present invention, whether or not the projection of the baffle is inserted into the tank of the receiver dryer can be visually confirmed at the end of the tank.

In addition, according to another feature of the present invention, when the projection of the baffle is inserted into the tank of the receiver dryer by inserting a tool at the end of the tank by bending the projection of the baffle can prevent the projection from escaping out of the receiver tank. .

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

4 is a schematic exploded perspective view of a part of a heat exchanger with a receiver drier according to the invention.                     

Referring to the drawings, the header pipe 52 of the heat exchanger is formed by a header 41 and a tank 42 coupled to the header 41. On the other hand, the receiver dryer 53 provided on the side of the header pipe 52 is composed of a receiver dryer tank 43 formed integrally.

The tube insertion opening 41a is formed in the outer peripheral surface of the header 41. As shown in FIG. The tube is inserted into the tube insertion port 41a. A plurality of baffles 45 are provided inside the header pipe 52 defined by the header 41 and the tank 42 to separate the internal space of the header pipe 52. The baffle 45 has a shape that matches the cross-sectional shape of the inner space of the header pipe 52, and a baffle protrusion 45a is formed on one side.

The tank 42 has a baffle protrusion insertion hole 42a through which the baffle protrusion 45a is inserted and passed. The baffle protrusion 45a protrudes through the baffle protrusion insertion hole 42a. In addition, the tank 42 is provided with an outlet 42b and an inlet 42c for allowing the heat exchange medium to flow out of the receiver drier 53 or to flow in from the receiver drier 53.

The side of the tank 42 is joined to the tank 43 of the receiver drier 53. The tank 43 of the receiver drier is formed by molding such that the united aluminum member has a predetermined cross-sectional shape as shown in the drawing. In the embodiment shown in the figure, when the end portions 43c and 43d of the aluminum members are joined to each other, the aluminum member is formed such that an inlet 43b and an outlet 43c of the heat exchange medium are formed therebetween. The heat exchange medium inlet 43b and the outlet 43c of the receiver dryer tank 43 thus formed correspond to the outlet 42b and the inlet 42c formed in the tank 42 of the header pipe 52. That is, when the receiver dryer tank 43 is installed on the side of the tank 42 of the header pipe 52, the flow of the heat exchange medium can be made through the inlet and the outlet of the corresponding heat exchange medium.

The baffle protrusion insertion hole 43a is formed in the side surface of the tank 43 of the receiver dryer 53. This baffle protrusion insertion hole 43a is used to attach the tank 43 of the receiver drier 53 to the tank 42 of the header pipe 52. That is, the projection 45a of the baffle 45 described above passes through the baffle projection insertion hole 42a formed in the tank 42 of the header pipe 52 and then to the tank 43 of the receiver drier 43. By being inserted into the formed baffle projection insertion hole 43a, the header pipe 52 and the receiver dryer 43 may be joined.

On the other hand, the reference number 46 is a baffle insertion hole formed in the side of the tank 46 of the receiver dryer 53, the baffle is inserted through the baffle insertion hole 46. The baffle may be the same as the baffle 26 shown in FIG. 2 and has a filter for filtering foreign matter. On the other hand, although not shown in the drawings, it is also possible to delete the baffle and the baffle insertion structure formed separately by integrally forming the baffle and the filter in the lower cap.

An upper cap 49 is provided for closing the upper end of the header pipe 52 consisting of the header 41 and the tank 42, and the lower cap (not shown) for closing the lower end of the header pipe 52 as well. Is provided. In addition, an upper cap 50 for closing the upper end of the tank 43 of the receiver dryer 53 and a lower cap 47 for closing the lower part are provided. Although not shown in the drawing, the desiccant storage container 21 as described with reference to FIG. 2 is accommodated inside the tank 43 of the receiver dryer, and the lower end thereof is supported by the baffle inserted through the baffle insertion opening 46. Can be.

5 is a perspective view schematically showing the overall structure of the heat exchanger shown in FIG. 4.

Referring to the drawings, the heat exchanger includes a first header pipe 51 and a second header pipe 52 arranged in parallel with each other, and a plurality of parallel tubes having both ends inserted into the header pipes 51 and 52. 54, a heat dissipation fan 55 disposed between the tubes 54, and a receiver dryer 53 bonded to the side surface of the second header pipe 52. The receiver dryer 53 has a projection 45a of the baffle 45 provided in the second header pipe 52 in the baffle projection insertion hole 43a formed in the tank 43 of the receiver dryer, as described with reference to FIG. 4. It is held by being inserted and fully joined by brazing. Denoted at 56 is the inlet of the heat exchange medium, and indicated at 57 is the outlet of the heat exchange medium.

6a and 6b show, respectively, in cross-section the state before and after coupling the tank of the receiver drier to the tank of the header pipe.

Referring to FIG. 6A, a baffle protrusion insertion hole 43a is formed in the tank 43 of the receiver dryer, and the protrusion of the baffle 45 provided inside the header pipe 52 protrudes outward of the header pipe 52. It is a state. One end of the tube 54 is joined to the side of the header pipe 52.

In FIG. 6B, the tank 43 of the receiver drier is close to the header pipe 52, so that the projection 45a of the baffle 45 is inserted into the tank 43 of the receiver drier. Whether or not the projection 45a of the baffle 45 is properly inserted into the tank 43 of the receiver drier can also be visually checked before the cap 50 is engaged in FIG. 4, and the tool is end of the tank 43. By inserting in and bending the projection 45a, the projection 45a can be prevented from escaping out of the tank 43. Thus, the stability and reliability of the coupling may be ensured before the brazing operation is performed.

Hereinafter, the operation of the heat exchanger having a receiver dryer constructed according to the present invention as described above will be described schematically.

In FIG. 5, the gaseous heat exchange medium supplied through the inlet 56 of the heat exchange medium has a flow path formed in a meandering shape by the first and second header pipes 51 and 52 and the tubes 54. As it passes, heat is exchanged with the outside air to liquefy, and the liquefied heat exchange medium flows into the receiver dryer 53 connected to the second header pipe 52. The meandering path through which the heat exchange medium flows in the heat exchanger includes a plurality of baffles 45 installed in the second header pipe 52 shown in FIG. 4 and baffles (protrusions) not shown in the first header pipe 51. Baffles are not formed).

During the flow of the heat exchange medium, the heat exchange medium introduced into the second header pipe 52 is formed through the inlet port (b) formed in the tank 43 of the receiver driver through the outlet port 42b formed in the tank 42 of the header pipe 52. 43b). As the heat exchange medium introduced as described above passes through a desiccant (not shown) in the desiccant storage container (not shown) mounted inside the receiver tank 53, the portion contained in the heat exchange medium is first removed, and the baffle (see FIG. 4). As it is inserted into the illustrated baffle insertion hole 46, the foreign matter is filtered while passing through the filter portion formed in the same as that shown in FIG. The heat exchange medium passing through the receiver dryer 53 is introduced into the inlet 42c formed in the second header pipe 52 through the outlet 43c formed at the lower end of the tank 43 of the receiver dryer. Therefore, the heat exchange medium which flowed into the 2nd header pipe 52 will be in the state which went through the desired condensation action, drying, and a foreign material filtration action. This heat exchange medium passes through the subcooling region as a liquid phase and is discharged through the outlet pipe 57 shown in FIG.

The heat exchanger having the receiver dryer according to the present invention has an advantage that the coupling between the tank of the header pipe and the tank of the receiver dryer is achieved by inserting the projection of the baffle before brazing, thereby improving the stability and reliability of the operation. In addition, since the whole of one side of the tank of the receiver dryer is brazed in contact with one side of the header pipe, the space occupied by the heat exchanger can be reduced, and the heat exchanger can be concentrated and reduced in weight.

Although the present invention has been described with reference to one embodiment shown in the accompanying drawings, it is intended to be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. There will be. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

Claims (4)

A plurality of tubes disposed in parallel with each other; A heat dissipation fan disposed between the tubes; First and second header pipes having a header into which both ends of the plurality of tubes are inserted inward and a tank coupled to the header; A baffle disposed inside the second header pipe and having a protrusion projecting through a baffle protrusion insertion hole formed in a tank of the second header pipe; As joined to one side of the second header pipe, the baffle protrusion insertion hole into which the protrusion of the baffle can be inserted, the outlet of the heat exchange medium formed in the second header pipe, the inlet corresponding to the inlet and the outlet are formed A heat exchanger having a receiver dryer, comprising: a receiver dryer tank. The method of claim 1, A desiccant storage container inserted into the receiver dryer; And a baffle having a filter for filtering foreign substances in the heat exchange medium, the baffle being inserted through a baffle insertion hole formed in a tank of the receiver dryer to support the desiccant storage container. Installing a plurality of baffles having protrusions in the inner space of the first header of the heat exchanger and the second header pipe, which is one of the second header pipes, and protruding the protrusions outward through the baffle protrusion insert formed in the second header pipe. step; A baffle protrusion formed in the tank of the receiver dryer by bringing the outlet of the heat exchange medium formed in the second header pipe, the inlet corresponding to the inlet, and the tank of the receiver dryer having the outlet close to the second header pipe. Inserting into the insertion hole; And, Brazing the header pipe and the tank of the receiver dryer. The method of claim 3, wherein When the projection of the baffle is inserted into the tank of the receiver dryer by inserting a tool at the end of the tank to bend the projection of the baffle can prevent the projection from escaping out of the receiver tank, characterized in that .

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