KR20100025185A - A structure and a making method for receiver drier cap - Google Patents

Abstract

PURPOSE: A receiver drier cap structure which seals a receiver drier and a manufacturing method thereof are provided to make a degree of difficulty of a molding process of the receiver drier main body low. CONSTITUTION: A receiver drier cap structure comprises a receiver drier tank(20), a filter unit, and a bottom cap(40). An opening is formed on the bottom of the receiver drier tank and a through hole which is connected to the header tank of a condenser is formed outside the receiver drier tank. The filter unit is inserted to the receiver drier tank and filters the foreign material. The bottom cap is combined on the opening of the receiver drier tank while supporting the filter unit. The bottom cap comprises a body and a filter hybridization unit. The body has the diameter corresponding to the inside diameter of the receiver drier tank. The filter hybridization unit is combined with the filter unit. The supporting structure is formed on the opening end tip of the receiver drier tank. The supporting structure supports the outside end of the bottom cap by crimping. A support groove(60) is formed on the receiver drier tank. The support groove supports the inside end of the filter unit or the inner end of the bottom cap.

Description

Receiver structure and receiver making method {A Structure and a Making Method for Receiver Drier Cap}

The present invention relates to a receiver dryer cap structure and a manufacturing method thereof, and more particularly, to simplify the formation of the structure for the coupling, to facilitate the manufacture and to reduce the number of processes to increase the production efficiency and cost reduction effect The present invention relates to a receiver dryer cap structure and a method of manufacturing the same.

The vehicle cooling system compresses a refrigerant that exchanges heat with outside air into a gaseous state of high temperature / high pressure in a compressor and then sends it to a condenser, and the condenser phase-changes the gaseous refrigerant into a liquid state. Transfer to expansion valve. The expansion valve expands the refrigerant to a low temperature / low pressure state and sends the refrigerant to an evaporator. The evaporator cools the interior of the vehicle by allowing the low temperature / low pressure refrigerant to exchange heat with the indoor air of the vehicle.

In order for the refrigerant circulating through the path to absorb the outside air heat, it must be in a liquid state when condensed in the condenser. However, some of the refrigerant remains in a gaseous state and then passes through the condenser. Therefore, when the refrigerant that coexists in the liquid phase and the gaseous phase is heat-exchanged in the evaporator, the gaseous refrigerant hardly absorbs the heat of the indoor air, resulting in a decrease in cooling efficiency.

In order to solve this problem, a receiver dryer is installed between the condenser and the expansion valve. The receiver dryer absorbs moisture contained in the refrigerant that separates / removes or circulates the non-liquefied gaseous refrigerant from the condenser. To improve the cooling efficiency.

In general, the receiver dryer is formed by being attached to the header tank 102 of one side of the condenser 100 as shown in FIG. 1, the structure of which is a gas inside the receiver dryer tank 104 of which the top is closed and the bottom is open. The desiccant 108 for removing the working fluid in a state is inherent, and the filter unit 116 is formed using the lower cap 110 to remove impurities mixed in the working fluid passing through the desiccant 108. The lower part of the tank 104 is sealed.

2 and 3, the lower cap 110 is composed of a body portion 112, the thread 114 is formed on the outer peripheral surface and a filter portion 116 for removing impurities in the working fluid, The lower cap 110 is screwed through the thread 114 of the body 112 to the open lower portion of the receiver dryer tank 104, and into the sealing member insertion groove 118 formed on the outer circumferential surface of the body 112. As the sealing member 120 coupled to the body 112 rotates, the sealing member 120 is compressed to the inner circumferential surface of the receiver dryer tank 104 to form a bonding surface. The filter unit 116 is fixed to the upper flange 119 of the filter unit 104 in contact with the locking jaw 106 inside the receiver dryer tank 104 in order to prevent flow in the receiver dryer tank 104. It is a structure.

However, in order to form the locking step 106 and the thread in the receiver dryer tank 104, there has been a problem that a very complicated process must be involved. That is, since the body of the receiver dryer tank 104 is formed in a pipe shape, first, a pipe-shaped material is prepared to an appropriate length for extrusion and cutting, and then a bumping process, that is, one side of the pipe is struck, to adjust the length of a part of the material. After performing the process of reducing and increasing the thickness of the wall surface, the process of cutting the inside to form a thread or the like. If the thread is formed by cutting the inside of the pipe without the bumping process, the bumping process must be carried out because the wall thickness at the cutout becomes too thin to weaken the strength and easily damage and breakage can occur at a small external force. It is a process. However, the bumping process is a process having a relatively high process difficulty compared to processes such as extrusion and cutting, and the probability of defective products is relatively high during the bumping process. That is, the conventional receiver drier cap structure forming process as described above has a problem in that the number of processes is high and the process difficulty is high, thereby increasing the defect occurrence rate and causing a decrease in productivity.

In addition, there is a problem in that waste of the material scraped off during the process of cutting to form a thread after the bumping process is severe. Meanwhile, before performing the bumping process, the pipe material is cut into a length slightly longer than the length of the receiver dryer tank 104 to be finally produced, in consideration that the length is reduced by bumping, and then the bumping process is performed. However, as described above, the bumping process is a process for increasing the thickness of the pipe wall, so that the exact length of the receiver dryer tank 104 to be produced by the bumping process may not come out, so in this case, the end portion is further cut out to meet the length. Additional processes such as may be required. In this process, as well as the number of processes, there was a problem that the amount of material that is wasted by cutting is further increased, thereby causing a bad effect such as a cost increase.

Korean Patent No. 0730567 ("Receiver Dryer for Air Conditioning Apparatus and Manufacturing Method Thereof", hereinafter referred to in the prior art) invented by the present applicant includes a receiver including a cylindrical body and a lower cap sealingly connecting the lower end of the body. A dryer, wherein the body; A filter support having a body divided into an upper part and a lower part, and having at least one inwardly projecting part supporting an upper end part of a filter accommodated in the lower part; At least one refrigerant inlet formed in an upper portion of the body; A coupling part formed by press-fitting the body between the filter support part and the lower end of the body, and an inner part of the press-fitted body coupled to the lower cap; And; At least one coolant outlet positioned between the filter support and the coupling part; It provides a receiver dryer comprising a. The prior art is to form the body of the receiver dryer by rolling, and may or may not form a screw thread as shown in Figures 1 to 3 coupled to the lower cap and the receiver dryer body is combined. have. Of course, it is obvious that the coupling force will be increased when the coupling part is formed as a thread, so it is natural that the coupling part is preferably formed. However, even in the prior art, when the thread is formed, a bumping process must be performed to manufacture the receiver dryer body, and thus, the above-described problems cannot be solved at all.

Accordingly, the present invention has been made to solve the problems of the prior art as described above, an object of the present invention is to simplify the process and structure of forming the receiver dryer cap portion, and thus to facilitate the cap assembly process It is to provide a dryer cap structure and a method of manufacturing the same. Another object of the present invention is to increase the production efficiency by reducing the difficulty of the cap portion forming process and the cap assembly process in this way, and thus the receiver dryer cap structure and its fabrication to obtain a cost reduction effect in product production In providing a method.

Receiver dryer cap structure of the present invention for achieving the object as described above, the cylindrical opening is formed in the lower end, the receiver having a communication hole 22 is formed in communication with the header tank 12 of the condenser 10 on the outside Dryer tank 20; A filter part 30 inserted into the receiver dryer tank 20 to filter foreign substances; And a lower cap 40 supporting the filter unit 30 and coupled to an opening of the receiver dryer tank 20. In the mutually coupled receiver dryer cap structure, the lower cap 40 is a filter coupling portion coupled to the body 41 and the filter portion 30 having a diameter corresponding to the inner diameter of the receiver dryer tank 20. Comprising (42), the opening end of the receiver dryer tank 20 is formed in a tab structure to the lower cap 40 is inserted into the lower cap 40 by the crimping (crimping) A support structure 50 is formed to support an outer end of the receiver, and a body portion of the receiver dryer tank 20 has an end portion of the filter portion 30 or an inner end portion of the lower tab 40 body 41. It is characterized in that the support groove 60 is formed recessed into the receiver dryer tank 20 to support the portion.

At this time, the support structure 50 extends in the longitudinal direction of the receiver dryer tank 20 and protrudes, and a plurality of protruding tabs 50a are disposed along the edge of the opening side end of the receiver dryer tank 20. It is characterized by that. In this case, the protruding tab 50a is deformed by a tab crimping process in which the lower cap 40 is inserted into the receiver dryer tank 20 and then bent to support the outer end of the lower cap 40. It is preferable to prevent the separation of the lower cap 40.

Alternatively, the support structure 50 may include a plurality of through holes 51 formed along the outer circumferential surface of the receiver dryer tank 20 at a position spaced a predetermined distance away from the receiver dryer tank 20 opening side end portion, and the through hole ( 51 are formed and the connecting wall 52 formed as the wall surface of the receiver dryer tank 20 remaining and the through hole 51 are formed to have a band shape at the end of the receiver dryer tank 20 opening side. It is characterized in that the wave tab (50b) consisting of the support unit 53 is connected by the receiver dryer tank 20 and the connecting wall 52. In this case, the wave tab 50b is a wave crimping in which the support portion 53 at the position of the through hole 51 is bent by a rolling process after the lower cap 40 is inserted into the receiver dryer tank 20. Deformed by the process is characterized by preventing the departure of the lower cap 40 by supporting the outer end of the lower cap (40).

In addition, the support groove 60 is characterized in that formed by a rolling process.

In addition, the manufacturing method of the receiver dryer cap structure of the present invention, in the method for manufacturing the receiver dryer cap structure as described above, a) the support structure 50 at the opening side end of the receiver dryer tank 20 Forming; b) inserting the combination of the lower cap 40 and the filter part 30 into the receiver side opening of the receiver dryer tank 20; c) the support structure 50 is crimped to support the outer end of the lower cap 40 to prevent the lower cap 40 from being separated; d) a rolling process is performed on the receiver dryer tank 20 at the end position of the filter portion 30 or the inner end position of the lower cap 40 body 41 to form the support groove 60. Becoming; Characterized in that comprises a.

Alternatively, in the method of manufacturing a receiver dryer cap structure when the support structure 50 is the protruding tab 50a, a1) a cutting process is performed to protrude the end portion of the receiver dryer tank 20 opening side. The tab 50a is formed; b) inserting the combination of the lower cap 40 and the filter part 30 into the receiver side opening of the receiver dryer tank 20; c1) the protruding tab 50a is bent and crimped toward the inside of the receiver dryer tank 20; d) a rolling process is performed on the receiver dryer tank 20 at the end position of the filter portion 30 or the inner end position of the lower cap 40 body 41 to form the support groove 60. Becoming; Characterized in that comprises a.

Alternatively, in the method for manufacturing a receiver dryer cap structure when the support structure 50 is the wave tab 50b, a2) a cutting process is performed to a predetermined position of an opening side end portion of the receiver dryer tank 20. Forming a through hole (51); b) inserting the combination of the lower cap 40 and the filter part 30 into the receiver side opening of the receiver dryer tank 20; c2) the support portion 53 corresponding to the position of the through hole 51 of the wave tab 50b is bent in a direction toward the center of the receiver dryer tank 20 so that the wave tab 50b is wave crimped. step; d) a rolling process is performed on the receiver dryer tank 20 at the end position of the filter portion 30 or the inner end position of the lower cap 40 body 41 to form the support groove 60. Becoming; Characterized in that comprises a.

According to the present invention, in the receiver dryer cap structure, by conventionally locking the cap in the form of a screw, a problem that a complicated process is required to form a screw thread on the receiver dryer body can be solved, and the receiver dryer can be effectively sealed. By employing a simplified structure, there is a great effect of greatly reducing the molding process difficulty of the receiver dryer body and reducing the number of processes. In this way, since the process difficulty and the number of processes are reduced, not only the time required to produce the product is greatly reduced, but also the probability of defective products is greatly reduced due to the reduction of the process difficulty, and thus the production efficiency is greatly increased. In particular, much less material is consumed compared to the amount of material wasted in the conventional thread forming process, and since the process difficulty and number are greatly reduced, there is an effect that the cost can be drastically lowered.

Hereinafter, a receiver dryer cap structure and a manufacturing method thereof according to the present invention having the configuration as described above will be described in detail with reference to the accompanying drawings.

Figure 4 is a cross-sectional view of the receiver dryer and condenser coupled to the lower cap according to the present invention, Figure 5 shows two embodiments of the support structure of the lower cap according to the present invention.

As shown in Figures 4 to 5, the receiver dryer cap structure of the present invention, the cylindrical opening is formed at the lower end, the communication hole 22 which communicates with the header tank 12 of the condenser 10 on the outside is A receiver dryer tank 20 formed; A filter part 30 inserted into the receiver dryer tank 20 to filter foreign substances; And a lower cap 40 supporting the filter unit 30 and coupled to an opening of the receiver dryer tank 20. In this mutually coupled receiver dryer cap structure, the lower cap 40 is coupled to the filter 41 and the body 41 and the filter portion 30 having a diameter corresponding to the inner diameter of the receiver dryer tank 20 It comprises a portion 42, the opening end of the receiver dryer tank 20 is formed in a tab structure and the lower cap 40 is inserted after the lower cap 40 by the crimping (crimping) Support structure 50 is formed to support the outer end of the), the body of the receiver dryer tank 20 is the end of the filter portion 30 or the inner side of the lower tab 40 body 41 A support groove 60 recessed inwardly of the receiver dryer tank 20 so as to support an end portion (inner side here means an inside / outside space divided based on the receiver dryer tank 20). Will be formed.

As shown in FIG. 4, the lower cap 40 is integrally formed with the filter unit 30, and a combination of the lower cap 40 and the filter unit 30 includes the receiver dryer tank ( 20) It is inserted into the end of the opening side. At this time, the end of the filter portion 30 or the inner end of the lower tab 40 body 41 is caught by the support groove 60, and thus the lower cap 40 and the filter portion 30 The combination of) can be stably disposed at a predetermined position. Since the lower cap 40 and the filter unit 30 are integrated, a description of the following is that the support structure 50 and the support groove 60 fix the position of the lower cap 40. The description should be understood as' the support structure 50 and the support groove 60 to fix the position of the combination of the lower cap 40 and the filter portion 30.

Hereinafter, two embodiments of the support structure will be described in more detail with reference to FIG. 5. 5 (A) and 5 (C) show the first embodiment of the supporting structure of the receiver dryer cap structure of the present invention, and FIGS. 5 (B) and 5 (D) support the receiver dryer cap structure of the present invention. A second embodiment of the structure is shown respectively.

First, the first embodiment of the supporting structure of the receiver dryer cap structure of the present invention shown in Figs. 5A and 5C will be described. In the first embodiment, the support structure 50 is formed of the protruding tab 50a. In more detail, the protruding tab 50a extends in the longitudinal direction of the receiver dryer tank 20 so as to protrude, and as illustrated, a plurality of protrusion tabs 50a are formed along the edge of the opening side of the receiver dryer tank 20. Dogs are placed. FIG. 5 (A) shows, in perspective and top view, the state of the protruding tab 50a before inserting the lower cap 40 into the receiver dryer tank 20. FIG. The top view shows a state in which the protruding tab 50a is bent so that the lower cap 40 does not leave the correct position after the cap 40 is disposed in the correct position. As shown in FIG. 5C, the protruding tab 50a prevents the lower cap 40 from escaping out of the receiver dryer tank 20, and also as shown in FIG. 4. 60 prevents the filter unit 30 (which is formed integrally with the lower cap 40) from leaving the receiver dryer tank 20, so that the lower cap 40 is the receiver dryer tank. It is to be stably coupled in place to seal the opening of the (20). In FIG. 4, an embodiment in which the support groove 60 supports the end of the filter unit 30 is illustrated, but of course, as described above, the support groove 60 is the body 41 of the lower cap 40. It may be formed in a position to support the end, in this case also the principle of the departure-avoidance structure is the same.

Next, a second embodiment of the supporting structure of the receiver dryer cap structure of the present invention shown in Figs. 5B and 5D will be described. In the second embodiment, the support structure 50 is formed of a wave tab 50b. To describe the configuration of the wave tab 50b in more detail, as shown in FIG. 5B, the wave tab 50b includes a through hole 51, a connection wall 52, and a support part 53. . A plurality of through holes 51 are formed along the outer circumferential surface of the receiver dryer tank 20 at a position spaced a predetermined distance from an end of the receiver dryer tank 20 opening side. In addition, the connection wall 52 is formed as a wall surface of the receiver dryer tank 20 after the through holes 51 are formed. Finally, the support part 53 is formed in a band shape at the end of the receiver dryer tank 20 opening side by forming the through hole 51, and thus, the receiver dryer tank 20 and the connection wall 52 are formed. ) Will be connected. The wave tab 50b formed as described above has the lower portion 40 inserted into the receiver dryer tank 20, and then the supporting portion 53 at the through-hole 51 position as shown in FIG. 5D. ) Is bent in the direction toward the center of the receiver dryer tank 20 to support the outer end of the lower cap 40 to prevent the separation of the lower cap 40.

The lower cap 40 is stably provided by the support structure 50 and the support groove 60 formed in the protruding tab 50a or the wave tab 50b as described above. Can be coupled to In the conventional receiver dryer cap structure as shown in Figs. 1 to 3, a screw thread is formed in the body of the cap and a thread is engaged with the receiver dryer tank, thereby screwing the receiver dryer tank opening. In order to form a thread in the process, the process had to go through a high degree of difficulty, such as a bumping process. However, the present invention essentially eliminates the need for screwing by employing a coupling structure that does not require the application of screwed connections, and thus also eliminates the bumping process (essential to form a screw thread). When the cap structure of the present invention is adopted, fabrication and assembly can be performed using only relatively simple processes such as cutting, rolling, bending, and the like, and thus, the production efficiency can be much higher than that of the related art.

The manufacturing method of the receiver drier cap structure by this invention is demonstrated. 6A shows a manufacturing method of the first embodiment of the receiver dryer cap structure of the present invention, and FIG. 6B shows a manufacturing method of the second embodiment of the receiver dryer cap structure of the present invention, respectively.

First, the manufacturing method of the first embodiment of the receiver dryer cap structure of the present invention will be described in more detail with reference to FIG. 6A. As shown in FIG. 6A (A), the receiver drier tank 20 opening side end portion is cut while leaving only the protruding tab 50a portion (hatched portion in FIG. 6A (A)) so that the protruding tab ( 50a) is formed. After the protruding tab 50a is formed in this way, the combination of the lower cap 40 and the filter unit 30 (which is referred to as a lower cap hereinafter) is an end of the receiver dryer tank 20 opening side. It will be inserted into the negative.

Next, as shown in FIG. 6A (B), a crimping process is performed in which the protruding tab 50a is bent. As the protruding tab 50a is bent in this manner, as shown in the top view of FIG. 6A (D), the plurality of protruding tabs 50a support the lower cap 40 at various positions, thereby lowering the lower portion. The cap 40 is prevented from leaving the receiver dryer tank 20 outside.

Thereafter, the support groove 60 is formed on the body of the receiver dryer tank 20, as shown in Figure 6a (C). The support groove 60 may be formed by a rolling process or the like, and of course, the support groove 60 may be located at the end position of the filter portion 30 or the inner end portion of the lower cap 40 body 41. Will be formed at the location. The support groove 60 is formed to support the end of the filter unit 30 or the inner end of the lower cap 40 body 41 so that the lower cap 40 is the receiver dryer tank 20. Trying to escape inward of is prevented.

Next, referring to Figure 6b will be described in more detail the manufacturing method of the second embodiment of the receiver dryer cap structure of the present invention. As shown in FIG. 6B (A), the portion of the through-hole 51 (hatched in FIG. 6B (A)) is cut at a predetermined position of the opening side of the receiver dryer tank 20 so that the wave tab ( 50b) is formed. After the wave tab 50b is formed as described above, the lower cap 40 is inserted into the opening side end of the receiver dryer tank 20.

Next, as shown in FIG. 6B (B), the support 53 corresponding to the position of the through hole 51 of the wave tab 50b is bent in a direction toward the center of the receiver dryer tank 20. A wave crimping process is performed. Since the support part 53 corresponding to the through hole 51 position is formed in a thin band shape, the support part 53 may be easily deformed even with a small external force, and thus the upper surface of FIG. Wave shapes as shown in the figure can be made. The support 53 is bent toward the center of the receiver dryer tank 20 to form a wave shape as a whole to support the lower cap 40 at various positions, so that the lower cap 40 is the receiver dryer tank 20. Attempt to escape outside of the

Thereafter, as shown in FIG. 6B (C), the support groove 60 is formed on the body of the receiver dryer tank 20. The formation process or position of the support groove 60 is the same as in the first embodiment.

The present invention is not limited to the above-described embodiments, and the scope of application of the present invention is not limited to those of ordinary skill in the art to which the present invention pertains without departing from the gist of the present invention as claimed in the claims. Of course, various modifications can be made.

1 is a cross-sectional view of a conventional condenser having a receiver dryer.

2 is an exploded perspective view of a conventional filter unit;

Figure 3 is a cross-sectional view of the filter unit coupling structure of the conventional receiver dryer.

Figure 4 is a cross-sectional view of the receiver dryer and condenser coupled to the lower cap according to the present invention.

Figure 5 is two embodiments of the support structure of the lower cap according to the present invention.

6A and 6B illustrate a method of fabricating two embodiments of a support structure according to the present invention.

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

10: condenser 12: header tank

20: receiver dryer tank 22: communication hole

30: filter portion 40: lower cap

41: body 42: filter coupling portion

50: support structure 50a: protrusion tab

50b: wavetab 51: through hole

52: connecting wall 53: support

60: support groove

Claims (9)

A receiver dryer tank 20 having an opening formed at a lower end in a cylindrical shape, and having a communication hole 22 communicating with the header tank 12 of the condenser 10 on the outside thereof; A filter part 30 inserted into the receiver dryer tank 20 to filter foreign substances; And a lower cap 40 supporting the filter unit 30 and coupled to an opening of the receiver dryer tank 20. In this mutually coupled receiver dryer cap structure, The lower cap 40 is composed of a body 41 having a diameter corresponding to the inner diameter of the receiver dryer tank 20 and a filter coupling portion 42 coupled to the filter portion 30, A support structure for supporting the outer end of the lower cap 40 by crimping after the lower cap 40 is inserted into the opening end of the receiver dryer tank 20 is formed in a tab structure 50 is formed, The body of the receiver dryer tank 20 is recessed inwardly of the receiver dryer tank 20 so as to support an end portion of the filter portion 30 or an inner end portion of the lower tab 40 body 41. Receiver dryer cap structure, characterized in that the support groove 60 is formed. The method of claim 1, wherein the support structure 50 A receiver dryer cap structure, characterized in that it extends in the longitudinal direction of the receiver dryer tank (20) is formed protruding tabs (50a) disposed along the edge of the opening side end of the receiver dryer tank (20). The method of claim 2, wherein the protruding tab 50a is The lower cap 40 is deformed by a tap crimping process that is bent after being inserted into the receiver dryer tank 20 to prevent the lower cap 40 from being detached by supporting the outer end of the lower cap 40. Receiver dryer cap structure, characterized in that. The method of claim 1, wherein the support structure 50 A plurality of through holes 51 and a plurality of through holes 51 formed along the outer circumferential surface of the receiver dryer tank 20 at a position spaced a predetermined distance from the end portion of the receiver dryer tank 20 opening side, the receiver dryer is formed A connecting wall 52 formed as a wall surface of the tank 20 and the through hole 51 are formed to form a band at an opening side end of the receiver dryer tank 20, and the receiver dryer tank 20 and the Receiver dryer cap structure, characterized in that the wave tab (50b) consisting of a support portion 53 is connected by a connecting wall (52). The wave tab 50b of claim 4, wherein: After the lower cap 40 is inserted into the receiver dryer tank 20, the lower portion 40 is deformed by a wave crimping process in which the support portion 53 at the position of the through hole 51 is bent by a rolling process. Receiver dryer cap structure, characterized in that to prevent the separation of the lower cap 40 by supporting the outer end of the). The method of claim 1, wherein the support groove 60 is Receiver dryer cap structure, characterized in that formed by a rolling process. In the method for producing a receiver dryer cap structure according to any one of claims 1 to 6, a) the support structure 50 is formed at the end of the receiver dryer tank 20 opening side; b) inserting the combination of the lower cap 40 and the filter part 30 into the receiver side opening of the receiver dryer tank 20; c) the support structure 50 is crimped to support the outer end of the lower cap 40 to prevent the lower cap 40 from being separated; d) a rolling process is performed on the receiver dryer tank 20 at the end position of the filter portion 30 or the inner end position of the lower cap 40 body 41 to form the support groove 60. Becoming; Method for producing a receiver dryer cap structure comprising a. In the method for producing a receiver dryer cap structure according to claim 2, a1) a cutting process is performed to form the protruding tab 50a at an end of the receiver dryer tank 20 at the opening side; b) inserting the combination of the lower cap 40 and the filter part 30 into the receiver side opening of the receiver dryer tank 20; c1) the protruding tab 50a is bent and crimped toward the inside of the receiver dryer tank 20; d) a rolling process is performed on the receiver dryer tank 20 at the end position of the filter portion 30 or the inner end position of the lower cap 40 body 41 to form the support groove 60. Becoming; Method for producing a receiver dryer cap structure comprising a. In the method for producing a receiver dryer cap structure according to claim 4, a2) a step of forming the through hole 51 at a predetermined position of the receiver dryer tank 20 opening side end portion by performing a cutting process; b) inserting the combination of the lower cap 40 and the filter part 30 into the receiver side opening of the receiver dryer tank 20; c2) the support portion 53 corresponding to the position of the through hole 51 of the wave tab 50b is bent in a direction toward the center of the receiver dryer tank 20 so that the wave tab 50b is wave crimped. step; d) a rolling process is performed on the receiver dryer tank 20 at the end position of the filter portion 30 or the inner end position of the lower cap 40 body 41 to form the support groove 60. Becoming; Method for producing a receiver dryer cap structure comprising a.

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