KR20050068814A - Receiver drier of heat exchanger - Google Patents

Abstract

The receiver dryer of the heat exchanger according to the present invention includes a tubular receiver tank having an inlet and an outlet connected to a header pipe of the heat exchanger such that a heat exchange medium is introduced and discharged therein, the opening being formed at least on one side thereof; It is inserted into the receiver tank, the desiccant storage container equipped with a desiccant and a filter unit provided on one side thereof; And a filter seat coupled to the receiver tank and coupled to the receiver to seal the opening in the receiver tank, the filter seat having one end of the desiccant storage container inserted and seated therein, and the filter support being inserted and supported by the filter seat. It is provided with a cap.

Description

Receiver drier of heat exchanger

The present invention relates to a receiver dryer of a heat exchanger, and more particularly, to a receiver dryer provided in a condenser employed in a vehicle air conditioner.

In general, a heat exchanger used as a condenser of a vehicle air conditioner is liquefied by passing a heat exchange medium in a gaseous phase into a tube contacting a heat dissipation fan to exchange heat with flow air contacting the tube and the surface of the heat dissipation fan. .

Although there are some differences depending on the refrigerant in this process, a receiver drier or an accumulator drier is used to remove moisture contained in the liquid heat exchange medium and sediment due to corrosion of the metal, or to store excess refrigerant. ) Is used.

The receiver dryer performs a function of storing the heat exchange medium of the liquid condensed in the condenser, filtering out water and impurities from the refrigerant, and maintaining a liquid until the heat exchange medium of the gas phase introduced from the condenser is liquefied.

The receiver drier includes a desiccant-filter unit composed of a tubular receiver tank in communication with the header pipe of the condenser, and a desiccant-filter unit installed in the receiver tank, in which the desiccant-filter is provided. After receiving the unit, the receiver tank is sealed by the cap.

In order to perform this function, the receiver drier includes a tubular receiver tank in communication with the header pipe of the condenser, and a desiccant-filter unit composed of a desiccant and a filter housed inside the receiver tank, and the desiccant-filter unit includes a receiver. After receiving in the tank, the receiver tank is sealed by the cap.

In the receiver dryer configured as described above, the desiccant, the filter, and the cap may be separately manufactured separately. In this case, when the desiccant, the filter, and the cap are assembled into the receiver tank, the assembly is performed. There is a side that is difficult to determine whether it is made completely, there is a disadvantage that the number of assembling process also increases.

Accordingly, the desiccant-filter unit and the cap are correctly assembled in the receiver tank, while the assembling process needs to be simplified.

In addition, the desiccant-filter unit must be replaced as a consumable at the end of its life, for which it is required to make it easier to attach and detach the desiccant-filter unit and the cap to the receiver tank.

Related technologies include the filter cartridges and capacitors disclosed in EP 1 132 695. According to the disclosure, the plug blocking the header pipe forms a part of the filter cartridge so as to simplify the structure and to facilitate assembly and disassembly of the filter cartridge to the header pipe, thereby facilitating replacement of the filter cartridge. .

The present invention is to solve the above problems, by forming the desiccant storage container and the filter unit integrally, by fixing the filter unit to the cap by the fixing means to facilitate the mounting and detachment to the receiver tank, It is an object of the present invention to provide a receiver dryer of a heat exchanger that can reduce the number of parts and the number of assembly processes.

The receiver dryer of the heat exchanger according to the present invention for achieving the above object,

A tubular receiver tank having an inlet and an outlet connected to the header pipe of the heat exchanger such that the heat exchange medium flows in and out, and has an opening formed on at least one side thereof;

A desiccant storage container inserted into the receiver tank and equipped with a desiccant and a filter unit at one side thereof; And

It is coupled by the receiver tank and the coupling means to seal the opening of the receiver tank, and the filter seat portion is formed from one side of the one end of the desiccant storage container is inserted and seated, and the filter part is inserted and supported And a cap provided with a filter support to be provided.

The filter support portion is provided with a blocking portion for partitioning between the inlet and the outlet through a circumference thereof, and a plurality of ribs spaced at predetermined intervals are preferably formed.

The outer circumferential surface of the desiccant storage container is preferably formed to correspond to the cut-off portion of the filter support portion is further provided with a close contact between the desiccant storage container and the filter support portion.

Preferably, the filter unit of the desiccant storage container includes upper and lower filter parts formed in a mesh shape at upper and lower sides of the contact part, respectively.

It is preferable that a plurality of through holes are formed on an outer circumferential surface of the desiccant storage container.

Fixing means including a protrusion formed on one end of the desiccant storage container and a press-in groove formed in the filter seating portion so that the protrusion may be press-fitted, it is preferable that the desiccant storage container is fixed to the cap. .

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

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

Referring to the drawings, the heat exchanger 10 used as a condenser has a pair of header pipes 11 and 12 installed in parallel with each other and both ends thereof communicate with the header pipes 11 and 12. A plurality of tubes 13, and the heat dissipation fins 14 are provided between the tubes (13). In the header pipes 11 and 12, baffles, which are not shown, are installed so that the heat exchange medium supplied from the supply pipe 16 may pass through the passage formed by the tubes 13 in a meandering manner and may be discharged to the discharge pipe 15. It is.

In the heat exchanger 10 configured as described above, the receiver dryer 20 according to an embodiment of the present invention is installed in the header pipe 12 on one side.

The receiver dryer 20 is shown in detail in FIGS. 2 to 5.

As shown in FIG. 2, the receiver drier 20 has a tubular receiver tank 21. An upper cap 22 is coupled to an upper end of the receiver tank 21, and an opening 23 is formed at a lower end of the receiver tank 21. In addition, first and second inlets 21a and 21b and outlets 21c are formed on upper and lower outer peripheral surfaces of the receiver tank 21 to allow the heat exchange medium to flow in and out.

The desiccant storage container 31 is inserted into the receiver tank 21.

The desiccant storage container 31 has a substantially pipe shape, and a desiccant not shown is mounted through the upper opening thereof. The installed desiccant will absorb moisture contained in the heat exchange medium. The top opening of the desiccant reservoir 31 is coupled with the cover 35.

One side of the desiccant storage container 31 is formed to correspond to the blocking portion 45 of the filter support 41 to be described later to close contact with the desiccant storage container 31 and the filter support portion 41 in close contact with each other (36) Is formed.

The filter unit 32 is formed on the outer circumferential surface of the desiccant storage container 31 with the adhesion part 36 as a boundary. That is, the filter part 32 includes an upper filter part 33 and a lower filter part 34 formed on the upper and lower sides of the contact part 36, respectively. The filter part 32 filters impurities from the heat exchange medium flowing from the first and second inlets 21a and 21b.

The desiccant storage container 31 and the filter portion 32 are integrally formed as described above.

In addition, a plurality of ribs 33a and 34a are provided in the upper filter part 33 and the lower filter part 34 of the filter part 32, and a mesh part (between the ribs 33a and 34a) is provided. 33b) 34b are formed. The ribs 33a and 34a are formed in the longitudinal direction of the desiccant storage container 31, and each of the ribs 33a and 34a is spaced apart from each other at a predetermined interval to maintain and support the shape of the mesh portions 33b and 34b.

In addition, the outer circumferential surface of the desiccant storage container 31 is formed with a plurality of through holes 35 having a size such that the desiccant does not escape. The through holes 35 may serve as filtering similar to the filter unit 32.

The position in which the filter part 32 is installed in the receiver tank 21 corresponds to the second inlet 21b and the outlet 21c of the receiver tank 21, and the upper filter part 33 is the second inlet. At the inlet port 21b, the lower filter part 34 may be positioned to correspond to the outlet port 21c, respectively. As described above, the upper filter part 33 is positioned corresponding to the second inlet 21b, so that the heat exchange medium introduced into the second inlet 21b first passes through the upper filter part 33 and then passes through a desiccant. The filtering effect can be high.

On the other hand, the lower end of the desiccant storage container 31 is coupled to the lower cap 40.

The lower cap 40 is coupled to the opening 23 of the receiver tank 21 to seal it, and a filter seating portion 41 into which the lower end of the desiccant storage container 31 is inserted and seated, and the filter. It is provided from the upper side of the seating part 41 and has the filter support part 42 in which the said filter part 32 is inserted and supported.

As shown in detail in FIG. 3 between the filter seat 41 and the desiccant storage container 31, a fixing means 48 is provided to fix them therebetween. The fixing means 48 may include at least one protrusion 48a formed at a lower portion of the desiccant storage container 31 and a press-in groove 48b formed in the filter seat 41 to correspond to each of the protrusions 48b. It includes. Since the protrusion 48a is inserted into the press-in groove 48b and then press-fitted, it is fixed between the desiccant storage container 31 and the lower cap 40 so as not to be separated. On the other hand, the position where the protrusion and the pressing groove are formed may be reversed, for example, the protrusion and the pressing groove may be formed at the bottom of the filter seating portion and the desiccant storage container, respectively.

The filter support part 42 is provided with the interruption | block part 45 which partitions between the said 2nd inlet 21b and the outlet 21c along the periphery at the upper end part.

The blocking unit 45 is partitioned between the second inlet 21b and the outlet 21c of the receiver tank 21. That is, in a state where the desiccant storage container 31 is installed in the receiver tank 21, the free end of the blocking part 45 is in close contact with the inner wall of the receiver tank 21, and thus, the receiver tank 21. ) May be partitioned between the second inlet 21b and the outlet 21c.

Therefore, the blocking part 45 may prevent the heat exchange medium introduced through the second inlet 21b from going to the outlet 21c without passing through the desiccant storage container 31, and thus included in the heat exchange medium. The discharged moisture and impurities through the outlet 21c may be blocked.

When the desiccant storage container 31 and the lower cap 40 are coupled to each other inside the blocking part 45, the close contact part 36 of the desiccant storage container 31 is positioned to block the 45. By being in close contact with the inside, the desiccant storage container 31 can be more firmly supported by the filter support 42.

On the other hand, the filter support 42 is formed with a plurality of ribs (42a) in the longitudinal direction. The ribs 42a are spaced at predetermined intervals, and are penetrated therebetween. Preferably, when the desiccant reservoir 31 and the lower cap 40 are coupled, the ribs 42a of the filter support 42 correspond to the ribs 34a of the lower filter part 34, respectively. Can be located. Accordingly, the mesh portion 34b formed between the ribs 34a of the lower filter portion 34 may be positioned between the ribs 42a of the filter support portion 42. However, the position between the ribs of the filter support part and the ribs of the lower filter part is not necessarily limited to the above.

In addition, a flange portion 43 is formed at a lower end portion of the lower cap 40, and a coupling portion 44 coupled to a lower portion of the receiver tank 21 is formed at an upper portion of the flange portion 43. .

The upper surface of the edge of the flange portion 43 is in close contact with the lower surface of the receiver tank 21 so that the lower cap 40 and the desiccant storage container 31 are not pushed into the receiver tank 21 any more. It can be defined.

In addition, at least one packing groove 46 in the circumferential direction is formed on the outer circumferential surface of the coupling part 44. The packing groove 46 is provided with a packing 47 for preventing leakage of the heat exchange medium from the receiver tank 21. As shown, the packing 47 may be composed of at least one O-ring.

On the other hand, the lower cap 40 is coupled to and fixed by the receiver tank 21 and the coupling means 50.

The coupling means 50, the first coupling hole 51 formed through one side of the lower cap 40 in the width direction thereof, and the lower cap 40 is coupled to the receiver tank 21 The second coupling hole 52 formed to correspond to the first coupling hole 51 and the coupling pin 53 is inserted into the first and second coupling holes 51 and 52. Then, the lower cap 40 is fixed to the receiver tank 21 by the coupling means 50 to seal it. Accordingly, the desiccant storage container 31 integrally formed with the lower cap 40 can also be placed in the receiver tank 21 in place. An end portion of the coupling pin 53 is further provided with a fixing portion 53a to prevent the coupling pin 53 from being separated from the first and second coupling holes 51 and 52.

Referring to FIGS. 1 to 5, the receiver dryer 20 configured as described above is mounted and acting on the heat exchanger 10 as follows.

The heat exchange medium of the gaseous phase supplied to the supply pipe 16 of the heat exchanger 10 is liquefied by passing heat to the outside air while passing through a flow path formed in the shape of a meander by the header pipes 11 and 12 and the tubes 13. The liquefied heat exchange medium is introduced into the receiver dryer 20 connected to the header pipe 12 on one side. That is, the first and second inlets 21a and 21b of the receiver tank 21 constituting the receiver dryer 20 are introduced into the first and second inlets 21a, and the heat exchange medium introduced into the first inlet 21a is a desiccant storage container 31. The through-holes 35 and the upper filter unit 33 is introduced into the desiccant storage container 31 to remove moisture and impurities, and the heat exchange medium introduced into the second inlet 21b is the upper filter unit 33. ), The drying agent flows into the desiccant storage container 31 to remove moisture and impurities, and then flows out through the lower filter part 34 to the header pipe 12 through the outlet 21c, and the heat exchanged liquid flows out. After passing through the subcooling area by the header pipes 11 and 12 and the tubes 13, the medium is discharged through the discharge pipe 15.

As described above, the receiver dryer of the heat exchanger according to the present invention includes a desiccant storage container integrally formed with a filter unit, and by combining the desiccant storage container with a lower cap, the structure thereof can be simplified and manufactured. The cost and the number of assembly processes can be reduced. In addition, it is possible to mount and detach the desiccant storage container to the receiver tank to facilitate replacement and repair.

In addition, by partitioning between the second inlet and the outlet of the receiver tank by the blocking unit provided in the desiccant storage container, the heat exchange medium introduced into the second inlet can pass through the filter unit first, thereby improving the filtering effect.

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

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

Figure 2 is an exploded perspective view of the receiver dryer of Figure 1;

3 is a partially separated perspective view of the receiver dryer of FIG. 2 showing a state before the desiccant storage container and the cap are assembled;

4 is a perspective view showing a state after the desiccant storage container and the cap are assembled in the receiver dryer of FIG.

FIG. 5 is a partial cutaway cross-sectional view of the receiver dryer of FIG. 2. FIG.

<Brief description of the major symbols in the drawings>

11,12.Header pipe 21.Receiver tank

31. Desiccant storage container 32. Filter unit

35..via 36..contact

40. Lower cap 41. Filter seat

42. Filter support 45. Shut off

48. Fastening means 50. Fastening means

Claims (8)

A tubular receiver tank having an inlet and an outlet connected to the header pipe of the heat exchanger such that the heat exchange medium flows in and out, and has an opening formed on at least one side thereof; A desiccant storage container inserted into the receiver tank and equipped with a desiccant and a filter unit at one side thereof; And It is coupled by the receiver tank and the coupling means to seal the opening of the receiver tank, and the filter seat portion is formed from one side of the one end of the desiccant storage container is inserted and seated, and the filter part is inserted and supported The receiver dryer of the heat exchanger, characterized in that provided; The method of claim 1, The filter support portion is provided with a blocking portion for partitioning between the inlet and outlet along the periphery thereof, the receiver dryer of the heat exchanger, characterized in that formed a plurality of ribs spaced at a predetermined interval. The method of claim 2, The outer circumferential surface of the desiccant storage container is formed to correspond to the blocking portion of the filter support portion, the receiver dryer of the heat exchanger, characterized in that the contact portion is further provided in close contact between the desiccant storage container and the filter support. The method of claim 3, wherein The filter unit of the desiccant storage container, the receiver dryer of the heat exchanger, characterized in that formed in the upper and lower sides with the contact portion in the form of a mesh-like upper filter and lower filter. The method according to any one of claims 1 to 4, Receiver receiver of the heat exchanger, characterized in that a plurality of through-holes are formed on the outer peripheral surface of the desiccant storage container. The method of claim 1, And a fixing means including a protrusion formed at one end of the desiccant storage container and a pressing groove formed in the filter seating portion so that the protrusion may be press-fitted, wherein the desiccant storage container is fixed to the cap. Receiver tank of heat exchanger. The method of claim 1, The coupling means, the receiver dryer of the heat exchanger, characterized in that it comprises coupling holes respectively formed through the receiver tank and the cap, and coupling pins inserted into the coupling holes. The method of claim 1, And the cap is provided with at least one packing for preventing leakage of the heat exchange medium from the receiver tank.