KR20080006038U - Manufacturing method of receiver tank for receiver dryer - Google Patents

Abstract

The present invention relates to an assembly structure of a receiver tank and a lower cap of a receiver drier. Specifically, in the assembly structure of the receiver tank and the lower cap of the receiver dryer in which the lower cap 30 having the filter 32 integrated thereon is assembled to the lower inner peripheral surface of the receiver tank 20, the inner cap surface is recessed along the outer peripheral surface to support the desiccant. Inner protrusion of the desiccant supporter 22 is formed to protrude along the desiccant supporter 22 and to guide the coolant to the filter 32 of the lower cap 30 while the upper surface of the filter of the lower cap 30 is caught. A cross-sectional partition wall member 24 coupled to the bottom of the portion, an O-ring 34 fitted to an outer circumferential surface of the lower cap 30 to prevent leakage of refrigerant between the receiver tank and the lower cap; It comes in close contact with the lower end of the lower cap 30 is provided with a snap ring 36 for fixing the lower cap, the lower end of the receiver tank 20 is formed with a concave groove band 26 so that the snap ring is fitted, the lower cap Screwing Because pushing is not a simply assembled structure has the effect of reducing manufacturing cost and assembly is easy, and further reduce the cost by changing the partition wall member assembly in accordance with the size of the filter.

Description

Manufacturing method of receiver tank and lower cap of receiver dryer {manufacturing method of receiver tank for receiver dryer}

1 is a block diagram showing a condenser combined with a conventional receiver dryer;

Figure 2 is a perspective view showing the assembly structure of the receiver tank and the lower cap of the receiver dryer according to the present invention,

3 is a perspective view of the assembly structure of the receiver tank and the lower cap of FIG.

4 is a process chart showing a manufacturing process of the receiver tank to which the present invention is applied;

FIG. 5 is a perspective view showing a cross section of the receiver tank manufactured according to the manufacturing process of FIG. 4 in a longitudinal direction.

<Explanation of symbols for the main parts of the drawings>

20: receiver tank 21: basic tube

22: desiccant support 24: partition member

26: groove groove 30: lower cap

32: filter 34: O-ring

36: snap ring

The present invention relates to the assembly structure of the receiver tank and the lower cap of the receiver dryer.

The receiver dryer is installed between the condenser and the expansion valve to temporarily store the liquid refrigerant flowing from the condenser so that the required amount can be supplied to the evaporator according to the cooling load, and supply the complete liquid refrigerant to the expansion valve and prevent condensation from the condenser. It serves to remove foreign substances such as moisture or bubbles contained in the refrigerant to absorb moisture in the gaseous state. Recently, the receiver drier is located on its channel, not the outlet of the condenser, and is supplied until the liquid zone of the refrigerant is developed in the receiver drier, and the lower side of the receiver drier is used as a subcooling zone where the liquid is cooled. To keep it.

1 shows a condenser incorporating a conventional receiver drier. As shown, between the first and second tanks (2) (3), which are installed to face each other, the plurality of tubes (4) for communicating the tank (2) (3), between the tubes (4) Heat dissipation fins 5 interposed therebetween, inlet and outlet pipes 6, 6a provided in the first tank 2, baffles 7 provided in the tanks 2, 3, and the first It comprises a receiver dryer 10 in communication with the two tank (3).

The receiver dryer 10 includes a receiver tank 11 communicating with the second tank 3, upper and lower caps 12 and 13 sealing upper and lower ends of the receiver tank 11, and The desiccant 14 and the filter 15 which are provided in the receiver tank 11 are provided.

The receiver dryer 10 performs a brazing process in a state in which the receiver tank 11 to which the upper cap 12 is coupled is temporarily assembled to the second tank 3. After the brazing is connected, the desiccant 14 and the filter 15 are inserted into the receiver tank 11, and then the lower cap 13 is screwed to the lower end thereof to seal the receiver tank 11. To complete the assembly.

The receiver tank 11 is bumped at one end using an extruded pipe having both sides and a mandrel inserted into the extruded pipe, as disclosed in Korean Patent No. 0558016 and Korean Laid-Open Patent No. 2005-0055802. ) By collecting the flesh through the processing, it is manufactured by forming a screw thread for screwing the lower cap 13 and a desiccant support portion for supporting the desiccant (14).

However, since the conventional receiver dryer has a structure in which the lower cap is screwed to the lower part of the receiver tank, the receiver tank has to form a flesh for processing the thread and processes the thread so that the material and manufacturing cost increase and are easy to assemble. There was a problem that can not.

In addition, there is a problem in that the structure of maintaining the refrigerant to the filter and supporting the filter to be formed differently according to the size of the filter, a lot of manufacturing costs.

Therefore, the present invention has been made to solve the problems as described above, the object of the present invention is to reduce the cost and manufacturing process of the material and to easily and easily assemble the lower cap, as well as to partition the partition member according to the size of the filter It is to provide an assembly structure of the receiver tank and the lower cap of the receiver dryer that can further reduce the cost by changing the assembly.

The present invention for achieving the above object, in the assembly structure of the receiver tank and the lower cap of the receiver dryer, the lower cap is integrally assembled to the lower inner circumferential surface of the receiver tank, it is recessed along the outer circumferential surface to support the desiccant and the inner circumferential surface A desiccant support portion formed to protrude along, a cross-sectional partition wall member coupled to a bottom surface of an internal protrusion of the desiccant support portion to guide the coolant to the filter of the lower cap and to catch the upper surface of the filter of the lower cap, and the receiver An o-ring fitted to an outer circumferential surface of the lower cap to prevent leakage of refrigerant between the tank and the lower cap, and a snap ring that is fixed to the lower end of the lower cap to fix the lower cap. It characterized in that the concave groove belt is formed so that the snap ring is fitted.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;

As shown in Figures 2 and 3, the receiver dryer to which the present invention is applied is a structure in which the lower cap 30, in which the filter 32 is integrated, is pushed and assembled at the lower end of the receiver tank 20. A desiccant supporter 22 is formed to be recessed along the outer circumferential surface of the receiver tank 20 and to protrude along the inner circumferential surface so as to support (built in the illustrated pack), and guide the coolant to the filter 32 of the lower cap 30. On the other hand, the a cross-sectional partition wall member 24 is coupled to the bottom surface of the inner projecting portion of the desiccant support part 22 so that the upper surface of the filter 32 of the lower cap 30 is coupled to the receiver tank 20. The O-ring 34 is fitted to the outer circumferential surface of the lower cap 30 to prevent leakage of the refrigerant between the lower cap 30, and the snap ring 36 is closely attached to the lower end of the lower cap 30. The lower cap 30 is fixed to the inner circumferential surface of the tank 20 so as not to fall out. In the inner circumferential surface of the lower end of the receiver tank 20, a concave groove band 26 is formed to fit the snap ring 36. The recess groove 26 is formed by processing in the form of embossing protruding to the outer peripheral surface of the lower end of the receiver tank (20).

The lower cap 30 has a structure in which the filter 32 is coupled to the upper portion of the lower cap 30 so that the upper surface of the filter 32 is in close contact with the bottom surface of the partition member 24.

The lower outer circumferential surface of the lower cap 30 is formed with a groove belt along the circumferential direction so as to be fitted to the O-ring 34. In the present embodiment, the O-ring 34 is two pieces.

As such, the receiver tank 20 to which the lower cap 30 is coupled is manufactured by forging processing and rolling processing, as shown in FIG. 4.

That is, as shown in Fig. 4A, first, a basic tube 21 having a constant thickness and one end portion 21a blocked through forging is manufactured, and then as shown in Fig. 4B. As described above, the desiccant supporter 22 is formed in the lower portion of the basic tube 21 through the rolling process and is formed to protrude along the inner circumferential surface, and as shown in FIG. After the coupling of the b-shaped ring-shaped partition wall member 24 to the bottom of the inner protrusion of the desiccant support 22 to guide the refrigerant to the filter 32 of the cap 30 (shown in FIG. 2), FIG. As shown in (d), the receiver tank is completed by forming a concave groove trough 26 which protrudes along the outer peripheral surface of the other end of the base tube 21 and is concaved along the inner peripheral surface through rolling.

The partition member 24 is coupled by a method such as caulking or indentation. The partition member 24 may be detachably coupled. The refrigerant inlets 28 and 28 may be formed by cutting before and after forming the concave protrusion 22, before and after forming the desiccant support 24, or before and after forming the lower cap assembly 26. Can be.

5 is a perspective view showing a cross section by cutting the receiver tank 20 manufactured according to the manufacturing process of Figure 4 in the longitudinal direction. The lower cap 30 to which the O-ring 34 is coupled pushes the lower cap 30 through the lower opening of the receiver tank 20 manufactured by the manufacturing method, and the upper end of the filter 32 is the partition member. If it is caught by the bottom of the (24), by inserting the snap ring 36 in the concave groove (26) to restrain the lower cap 30 not to fall out, the assembly of the lower cap 30 is completed.

As such, the structure in which the receiver tank 20 and the lower cap 30 are assembled has a process of forming a flesh for processing a thread in the receiver tank 20 and processing a thread, thus reducing material and manufacturing cost. Since the lower cap 30 is assembled from the lower side by inserting the snap ring 36, the lower cap can be easily and easily assembled.

In addition, it is possible to further reduce the cost by assembling the partition member 24 according to the size of the filter 32.

According to the assembly structure of the receiver tank and the lower cap of the receiver dryer according to the present invention, it is possible to reduce the cost and manufacturing process of the material, and to easily and easily assemble the lower cap, and to change the partition member according to the size of the filter. The cost can be further reduced.

Claims (1)

In the assembly structure of the receiver tank and the lower cap of the receiver dryer, in which the lower cap 30 having the filter 32 integrated therein is assembled to the lower inner circumferential surface of the receiver tank 20 A desiccant supporter 22 which is recessed along the outer circumferential surface and protrudes along the inner circumferential surface to support the desiccant, A cross-sectional partition wall member coupled to the bottom surface of the internal protrusion of the desiccant supporter 22 to guide the refrigerant to the filter 32 of the lower cap 30 and to catch the upper surface of the filter of the lower cap 30. 24, An o-ring 34 fitted to an outer circumferential surface of the lower cap 30 to prevent leakage of refrigerant between the receiver tank and the lower cap; In close contact with the lower end of the lower cap 30 has a snap ring 36 for fixing the lower cap, Assembling structure of the receiver tank and the lower cap of the receiver dryer, characterized in that the recess groove (26) is formed on the inner peripheral surface of the lower end of the receiver tank 20 so that the snap ring is fitted.

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