KR100502361B1 - Refrigerant filter fastening device - Google Patents

Abstract

An object of the present invention is to provide a refrigerating cycle refrigerant filtration device that can increase the ease of installation and exchangeability by providing a filter and a desiccant for removing impurities in the refrigerant at the inlet or outlet of the receiver condenser.

In order to achieve the above object, the present invention provides a condenser having a core for heat-exchanging refrigerant, and a header tank having both ends of a tube coupled thereto, the mail block 11 being integrally coupled to communicate with the header tank of the condenser; The female block 12 which is separably coupled by the male block and the fastening means and the outlet pipe is coupled, and the male block and the filter 13 for filtering foreign substances contained in the refrigerant in the border portion of the female block are provided. It is characterized by intervening.

Description

Refrigerant filter fastening device

The present invention relates to a structure for installing a refrigerant filter for filtering impurities contained in a refrigerant circulating a refrigeration cycle and a desiccant for absorbing moisture, and in particular, a refrigerant filtration device for a refrigeration cycle in which the refrigerant filter and the desiccant are easily fastened and exchanged. It is about.

The refrigerant filter is installed to remove foreign substances contained in the refrigerant. The foreign substances constitute the mainstream of processed residues of each system component, and when the foreign substances are included in the refrigerant and circulate in the refrigeration cycle, the orifice inside the expansion valve is blocked. Can be.

Therefore, the refrigerant filter is generally installed at the front end of the expansion valve to prevent impurities from leaking into the expansion valve. However, the refrigerant filter is generally installed inside the receiver but has a problem in that the entire receiver is completely sealed.

In addition, the desiccant is installed to remove moisture contained in the refrigerant, and is usually installed together with the refrigerant filter.

However, when the receiver is integrally coupled to the condenser, there is a problem that the desiccant is deformed by the high temperature since the brazing is coupled together with each unit in a high temperature furnace.

In view of this, a method of inserting the desiccant after brazing has been proposed to seal the opening of the upper and lower parts of the receiver by a detachable sealing means so that the filter can be replaced, and also the position of the filter in the liquid refrigerant line. The mounting positions are variously set.

However, the above installation method is inconvenient to manufacture and insert a desiccant for absorbing and removing moisture in the refrigerant and a filter for removing impurities in the refrigerant.

The present invention has been made in view of this point, and it is possible to install a filter and a desiccant for removing impurities in the refrigerant at the inlet or outlet of the condenser integrated condenser, a refrigeration cycle that can increase the ease of installation and exchangeability It is an object to provide a refrigerant filtration device.

In order to achieve the above object, the present invention provides a condenser having a core for exchanging a refrigerant, a header tank having both ends of a tube coupled thereto, and a mail block integrally coupled to communicate with the header tank of the condenser, and the mail block. It is characterized by interposing a female block which is divided by a fastening means and coupled to an outlet pipe, and the mail block and a filter for filtering foreign substances contained in the refrigerant in the border portion of the female block.

In addition, the upper surface of the mail block is installed in communication with the drying barrel, the lower surface of the mail block is provided with a drain valve for discharging the foreign matter.

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

1 is a front view showing a receiver integrated condenser of the present invention. The condenser, denoted by 1 as a whole, forms a heat exchanger via a plurality of tubes 2 arranged in a horizontal direction and a corrugated fin 3 between the tubes. The first header tank 4 and the second header tank 5 to which both ends of the tube 2 are inserted and coupled are arranged vertically on both sides of the heat exchange part.

The first header tank 4 combines an inlet pipe 6 into which a high-temperature, high-pressure air coolant flows from a compressor, and an outlet pipe 7 through which liquid refrigerant condensed in the condenser 1 is discharged to an expansion valve. The insides of the first and second header tanks 4 and 5 are partitioned by a plurality of baffles for the purpose of increasing the heat exchange path by flowing the refrigerant in meander, and the refrigerant circuit is determined by these baffles.

A block 10 is interposed between the first header tank 4 and the outlet pipe 7 to couple the outlet pipe 7 to the first header tank 4.

The block is divided into a male block 11 which is brazed and coupled to the first header tank 4 and a female block 12 to which the outlet pipe 7 is coupled as shown in FIGS. 2 to 4. .

The male block 11 has a flow path hole 11a formed in the center of the heat medium moving direction and has one side communicating with the first header tank 4 so as to have a substantially tetrahedral shape, which is in contact with the inner surface of the female block 12. Steps 11b are formed on the outer surface in the radially outer circumferential direction.

The female block 12 has a flow path hole 12a communicating with the mail block 11 in a thickness direction at the center thereof, and an inner surface of the female block 12 mates with a step 11b formed at an outer surface of the mail block 11. It has an inner diameter and the outlet pipe 7 which is torch welded by the post processing is inserted in the outer surface to a certain depth.

And the contact portion of the mail block 11 and the female block 12 is interposed with a filter 13 having a fine hole, the filter is inserted when coupling the female block 12 to the mail block 11 do.

On the other hand, in the present invention, the insertion hole (11c) having a constant diameter is formed on the upper surface of the mail block 11, the lower end of the drying cylinder 14 is inserted into the insertion hole (11c) to communicate.

The drying barrel 14 is provided with a desiccant 15 in the cylindrical body 14a, the lower portion of the main body 14a has an outer diameter equal in diameter to the insertion hole 11c of the mail block 11. The insertion portion 14b is formed. In addition, the outer circumferential surface of the main body 14a is integrally coupled to the flange 16, the flange 16 is formed with a bolt hole 16a in the thickness direction to bolt the drying barrel 14 to the male block 11 have.

And the lower portion of the mail block 11 is coupled to the drain valve 17 in the vertical direction in communication with the flow hole (11a) to discharge the foreign matter.

Hereinafter, the assembly method and action of the present invention. The present invention is a high temperature in the state in which the mail block 11 is coupled to the tube (2), corrugated pin (3), the first header tank (4), the second header tank (5) and the first header tank (4) Pass the braze through the furnace.

Then, when the filter 13 is inserted into the inner diameter of the female block 12 and coupled to the braided mail block 11 with a bolt, the outer surface of the female block 12 is the inner surface of the male block 11. The filter 13 is fixed to the front and rear surfaces of the female block 12 and the male block 11 while being closely matched with the step 11b formed at the same. Subsequently, the flange 16 coupled to the outer circumferential surface of the main body 14a is inserted into the insertion portion 14b of the drying container 14 in which the desiccant 15 is inserted into the insertion hole 11c formed on the upper surface of the male block 11. By bolting to the mail block 11 is fixed to the drying container (14).

In addition, the drain valve 17 is coupled to the lower surface of the male block 11 to complete the manufacture of the condenser.

The condenser manufactured as described above serves as a part of a vehicle refrigeration cycle, and heat exchanges through a circulation process in which the condensed refrigerant flows out through an outlet pipe 7 to an expansion valve (not shown) while passing through the condenser.

At this time, the refrigerant passing through the outlet pipe 7 is absorbed by the desiccant 15 fixed in the upper surface of the mail block 11, the moisture contained in the refrigerant and at the same time the border of the mail block 11 and the female block 12 Foreign matter is filtered through the filter 13 installed in the portion to prevent flow to the expansion valve.

In this way, the foreign matter filtered by the filter 13 may be discharged through the drain valve 17 provided on the bottom surface of the mail block 11.

On the contrary, when the filter 13 and the desiccant 15 are exchanged, the filter 13 and the desiccant 15 may be easily exchanged by disassembling and then combining the same.

The above-described mail block 11 and the female block 12 may be provided in the inlet pipe 6 of the condenser to obtain the same effect.

As described above, the present invention can be interposed through the upper surface of the mail block by brazing the mail block to the header tank and allowing the female block to which the outlet pipe is coupled to the mail block with a bolt. It is possible to facilitate the exchange of the filter and the desiccant by allowing the desiccant to bind the interpolated drying bin.

1 is a front view of a condenser showing an installation example of a refrigerant filter fastening device according to the present invention;

2 is a side view of the refrigerant filter fastening device of the present invention;

3 is a plan view extracting the refrigerant filter fastening device of the present invention,

Figure 4 is a longitudinal sectional view showing a refrigerant filter fastening device of the present invention.

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

1; condenser 2; tube

4; 1st header tank 7; Outlet pipe

10; block 11; mail block

12; female block 13; filter

14; drying container 15; drying agent

16; flange 17; drain valve

Claims (3)

In the condenser having a core for heat-exchanging the refrigerant and a header tank coupled to both ends of the tube, A mail block integrally coupled to communicate with the header tank of the condenser; A female block coupled to the male block by a fastening means and coupled to an outlet pipe; Refrigerant filter fastening device comprising a filter interposed to filter the foreign matter contained in the refrigerant in the contact portion of the mail block and the female block. According to claim 1, Refrigerant filter fastening apparatus further comprises a drying cylinder installed in communication with the flow path on the upper surface of the mail block. According to claim 1, Refrigerant filter fastening device characterized in that the drain valve for discharging the foreign substances on the lower surface of the mail block is installed.