KR100825711B1 - Receiver drier of a heat exchanger - Google Patents

Abstract

According to the present invention, a receiver dryer of a heat exchanger includes a receiver tank connected to one end of a heat exchange medium inlet and an outlet connected to a header pipe of a condenser, an upper cap sealing an upper end of the tank, and mounted inside the tank. A desiccant unit, a baffle inserted into and supported in a slot formed on the side of the tank, supporting the desiccant unit, and having a through hole for flowing the heat exchange medium, and a lower cap coupled to the lower end of the tank to seal it; It is characterized by.

Heat exchanger, receiver, fastener

Description

Receiver drier of a heat exchanger

1 is a perspective view showing a state in which a receiver dryer according to the present invention is mounted on a heat exchanger;

2 is a partially cutaway perspective view of the receiver dryer shown in FIG. 1;

3 is a partial cross-sectional view of the receiver dryer shown in FIG.

The present invention relates to a receiver drier, and more particularly to a receiver dryer of a heat exchanger attached to a condenser of an air conditioner.

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. Such a heat exchanger has a function of storing a condensed liquid heat exchange medium, a filter therein to filter foreign matter generated by corrosion of moisture and metals from the refrigerant, and a heat exchange medium of a gaseous phase introduced from the condenser. Receiver dryers or accumulator driers are used that perform the function of holding until liquefied into a liquid.

An example of such a heat exchanger is disclosed in Japanese Patent Laid-Open No. 9-53866.

This heat exchanger is used as a condenser of an air conditioner and has a receiver part having a receiver dryer function. The heat exchanger connects a plurality of cooling pipes in a plurality of stages up and down between a pair of header pipes, It has the structure which formed the fluid part which liquid refrigerant collects in a pipe.

Since the infusion portion of the heat exchanger is formed integrally with the header pipe by installing a separator inside the header pipe, it is difficult to manufacture.

Japanese Patent Laid-Open No. 8-183325 discloses another example of a heat exchanger having a receiver drier.

As disclosed, a liquid tank portion for storing the liquid refrigerant flowing out of the main body portion of the condenser and flowing the liquid refrigerant to the subcooling portion, wherein the liquid tank portion is integrally formed with the header portion using a partition plate on one side of the header portion, It is disclosed that the partition plate has two communication ports capable of communicating between the upper end and the lower end of each of the header portion and the liquid tank portion.

Since the condenser configured as described above uses a partition plate on one side of the header to form a liquid tank portion, that is, a dryer dryer, the header must be divided into two pieces to form a liquid tank portion. We cannot improve.                         

In addition, Japanese Utility Model Publication No. Hei 4-031504 discloses an example of a receiver drier. The receiver dryer includes a hermetic tank in which a refrigerant inlet passage and an outlet passage are formed in the head portion of the heat exchanger, a refrigerant suction pipe whose upper end is connected to the refrigerant outlet passage by extending the inside of the tank up and down, and the upper end of the refrigerant suction tube. It is provided with a filter surrounding the hole of. While the cylindrical refrigerant flow blocking cover is wrapped around the filter, the upper edge is joined to the outer surface of the refrigerant suction pipe, and the lower edge is arranged to be joined to the bottom wall of the tank. It is formed by projecting a portion of the bottom wall downward.

Japanese Patent Application Laid-open No. Hei 4-203774 discloses a configuration in which a awning coupled from an upper side of a refrigerant suction pipe is installed on a container, and a lower portion of the tank wall is formed as a tapered portion that becomes narrower downward, where a container containing a desiccant is accommodated. It is.

Such a receiver dryer is not easy to manufacture and fix because it needs to form a separate taper portion in the tank. Another example of a receiver drier is disclosed in Japanese Utility Model Publication No. Hei 4-97265.

On the other hand, since the tank of the receiver dryer installed in the heat exchanger has to be manufactured by forging and undergo a mechanical processing process, there is a problem in that the production cost is very high and productivity cannot be expected to increase.

The present invention is to solve the above problems, coupled with the header pipe, it is easy to combine and separate the desiccant storage bag (bag) and the structure is simple to provide a receiver dryer of the heat exchanger that can reduce the production cost There is a purpose.

In order to achieve the above object, the receiver dryer of the heat exchanger of the present invention,

A receiver tank connected to one end of a heat exchange medium inlet and an outlet connected to the header pipe of the condenser;

A baffle having an upper cap for sealing an upper end of the tank, a desiccant unit mounted inside the tank, and a through hole for supporting the desiccant unit and supporting the desiccant unit by flowing into a slot formed on a side of the tank; And, it is characterized in that it is provided with a lower cap coupled to the lower end of the tank to seal it.

In the present invention, the baffle is provided with a filter for filtering the heat exchange medium, at least one packing is installed between the inner surface of the tank and the outer peripheral surface of the lower cap coupled to the lower cap is the receiver tank and the lower cap It is fixed to the receiver tank by a fixing pin penetrating the through.

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

1 and 2 illustrate an embodiment of a receiver dryer installed in a heat exchanger according to the present invention.

Referring to the drawings, the heat exchanger 20 used as a condenser has a pair of header pipes 21 and 22 installed in parallel with each other, and a plurality of tubes 23 in which both ends thereof communicate with the header pipes 21 and 22. ) And a heat dissipation fan 24 installed between the tubes 23. Inside the header pipes 21 and 22, a heat exchange medium supplied from the supply pipe 25 meanders a passage formed by the header pipes 21 and 22 and the tubes 23 to meander. Baffles (not shown) are formed to allow communication. Here, the header pipes 21 and 22 may be formed of cylindrical pipes or semi-circular pipes brazed to each other.

And a receiver dryer 30 is installed in the header pipe 22 of the one side. The receiver dryer 30 has a receiver tank 33 having an upper cap 31 coupled to an upper end and an opening 32 formed at a lower end thereof, as shown in FIGS. 2 and 3. Heat inlet 33a and outlet 33b of the heat exchange medium are formed on the upper and lower outer circumferential surfaces of the inside of the receiver tank 33 adjacent to the inlet 33a, that is, between the inlet 33a and the outlet 33b. A baffle 34 having a through hole 34a through which a medium flows is provided. The through hole 34a of the baffle 34 is provided with a filter portion 34b for filtering foreign matter from the heat exchange medium passing through the through hole 34a. The filter unit 34b may be formed by fixing a mesh plate on the baffle 34. On the other hand, the installation of the baffle 34 to the receiver tank 33, the baffle coupling hole 35 is formed in the circumferential direction on the side of the receiver tank 33, the through hole 34a in the baffle coupling hole 35 ) And a baffle 34 having a filter portion 34b is inserted and brazed.

In addition, a desiccant storage container 36 is mounted inside the receiver tank 33. The desiccant storage container 36 may be formed by insert-injecting an injection tube or a metal mesh of a synthetic resin material having a plurality of openings. It can be made of a metal mesh.

The desiccant storage container 36 installed in the receiver tank 33 is inserted by the baffle 34 which is inserted before the baffle 34 is coupled to the coupling hole 35 and coupled to the coupling hole 35. To be supported.

On the other hand, a lower cap 40 for sealing the receiver tank 33 is coupled to the lower surface of the receiver tank 33. It has a coupling portion 41 coupled to the lower portion of the receiver tank 33 of the lower cap 40 and a flange portion 42 positioned below the coupling portion 41. At least one groove 41a is formed on the outer circumferential surface of the coupling portion 41 in the circumferential direction, and packings 43 are installed on the grooves 41a. O-ring is used for the packing 43. The lower cap 40 has a lower cap fixing part 60 for fixing the combined state with the position limiting part 50 defining the engaging position with the receiver tank 33. It includes.

The position limiting portion 50 defines a coupling position of the receiver tank 33 and the lower cap 40, and at least one coupling groove 51 is formed at a lower end of the receiver tank 33, and the lower portion The flange portion 42 of the cap 40 is formed with a coupling protrusion 52 that is coupled to the coupling groove 51.

In addition, the lower cap fixing part 60 has first through holes 61 formed in a direction perpendicular to the lengthwise direction of the lower portion of the receiver tank 33, and the receiver tank 33 and the lower cap 40 are coupled to each other. The second through hole 62 is formed in the lower cap 40 corresponding to the first through hole 61 in a state in which the coupling pin 63 is formed in the first and second through holes 61 and 62. This is done in combination. An end portion of the coupling pin 63 may further include an extension forming portion 63a for preventing separation of the pin from the first and second through holes 61 and 62.

Referring to the operation of the receiver dryer mounted on the heat exchanger in the present invention configured as described above are as follows.

The heat exchange medium in the gas phase supplied to the heat exchange medium supply pipe of the heat exchanger is liquefied by heat exchange with the outside air while passing through a flow path formed in a meandering shape by the header pipes 21, 22 and the tubes 23. The heat exchange medium is introduced into the inlet (33a) of the receiver tank 33 through the inlet pipe (33a) of the receiver dryer (33) connected to the header pipe (22). As the heat exchange medium introduced as described above passes through a desiccant (not shown) in the drying material storage container 36 mounted inside the receiver tank 33, the portion contained in the heat exchange medium is first removed, and the baffle 34 The foreign matter is filtered while passing through the filter part 34b formed in the filter. In this way, the heat exchange medium passing through the receiver tank 33 flows out to the header pipe 22 through the outlet pipe of the tank body, and the flow-through liquid heat exchange medium passes through the supercooling area by the header pipe and the tubes. After discharged through the discharge pipe (25).

The receiver dryer as described above has a configuration in which the upper and lower caps are coupled to the receiver tank 33 made of the extruded pipe, so that the manufacturing is simple. In particular, the lower cap 40 is coupled to and separated because the fixing to the receiver tank 33 is made by the first and second through-holes 61 and 62 and the fixing pin 63 formed in the receiver tank 33. Is easy. Particularly, the lower cap 33 and the receiver tank 33 are provided with coupling grooves 51 and coupling protrusions 52 for defining their coupling positions. (62) coincides with the coupling and disengagement of the fixing pin (63).

As described above, since the receiver dryer of the heat exchanger uses the extruded pipe of the receiver tank, the manufacturing cost is lower than that of the conventional forging process, and mechanical processing for the coupling of the upper and lower caps is unnecessary, thereby improving productivity. . In addition, the lower cap of the receiver dryer according to the present invention has a structure that is pin-coupled with the receiver tank, so that the cap is easily coupled and separated, and in particular, since the desiccant storage container is brazed in the receiver tank, the manufacturing process can be simplified. The present invention is not limited to the above-described embodiment shown in the drawings, and of course, various modifications can be made by those skilled in the art within the technical scope of the present invention.

Claims (6)

A receiver tank connected to one end of a heat exchange medium inlet and an outlet connected to the header pipe of the condenser; A baffle having an upper cap for sealing an upper end of the tank, a desiccant unit mounted inside the tank, and a through hole for supporting the desiccant unit and supporting the desiccant unit by flowing into a slot formed on a side of the tank; And, combined with the lower end of the tank receiver dryer of the heat exchanger characterized in that it has a lower cap for sealing it. The method of claim 1, The through-hole of the baffle receiver dryer of the heat exchanger, characterized in that further provided with a filter for filtering the heat exchange medium. The method of claim 1, The receiver dryer of the heat exchanger, characterized in that the receiver tank and the baffle is integrally brazed in a state in which the desiccant unit is inserted into the receiver tank. The method of claim 1, At least one packing is installed between an inner surface of the receiver tank and an outer circumferential surface of the lower cap coupled thereto, and the lower cap is fixed to the tank by a fixing pin penetrating the receiver tank and the lower cap. Receiver dryer. The method of claim 4, wherein The receiver tank and the lower cap further comprises a coupling position defining portion formed by coupling grooves and coupling protrusions respectively defining the coupling positions of the lower cap and the receiver tank. The method of claim 1, At least one inlet and outlet of the receiver dryer of the heat exchanger with the baffles interposed therebetween.

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