KR200158736Y1 - Receiver driver of air-conditioner in car - Google Patents

Abstract

A receiver drier of an automobile air conditioner is disclosed. The present invention is a tank having a sealed space portion and the heat exchange medium outlet is formed on the lower surface, a filter unit installed in the space portion and the upper surface is opened, the filter is mounted therein, and is installed in the tank to supply the heat exchange medium to the filter unit It characterized in that it comprises a heat exchange medium supply pipe. By employing the present invention, it is possible to reduce the bubbles of the heat exchange medium, there is an advantage that the discharge of the heat exchange medium is easy.

Description

Receiver drier of car air conditioning unit {Receiver driver of air-conditioner in car}

The present invention relates to a receiver dryer of an automobile air conditioner, and more particularly, to a receiver dryer of an automobile air conditioner having an improved structure of a supply pipe and an outlet pipe.

Typically, a car air conditioner is provided with a cooling and heating system for cooling and heating the interior of a vehicle. A cooling system for cooling the interior of a vehicle pumps heat out of the vehicle while circulating the heat exchange medium by a conventional refrigeration cycle.

1 schematically illustrates an example of a general cooling system of a vehicle air conditioner. Referring to the drawings, the cooling system includes a compressor 11, a condenser 12 connected to an outlet of the compressor 11, a receiver dryer 13 connected to an outlet of the condenser 12, and an evaporator 14. Include. The compressor 11 receives the power of the engine to the V belt to compress the heat exchange medium in a low temperature low pressure state. The condenser 12 condenses the heat exchange medium converted into a gaseous state of high temperature and high pressure by the compressor 11 by a blowing action of a cooling fan (not shown) located behind the condenser 12 to a liquid state of high temperature and high pressure. Make. The heat exchange medium passes through the receiver dryer 13 so as to absorb moisture contained in the heat exchange medium, and reaches the evaporator 14 through an expansion valve for rapidly expanding the heat exchange medium. In the evaporator 14, the heat exchange medium evaporates from the liquid state to the gaseous state, and since the latent heat of evaporation lowers the ambient temperature, it is blown to the interior of the vehicle by the action of a blower. Each system component is connected by first to fourth connectors 15a, 15b, 15c and 15d.

In the cooling system operated as described above, since a continuous phase change of the heat exchange medium must be performed by the compression action of the compressor, when the heat exchange medium contains foreign substances such as moisture, the phase change as described above may be continuously performed. No corrosion of the cooling system. In particular, when moisture is mixed in a refrigerant such as R-12, these are mixed to generate hydrochloric acid, which in turn adversely affects corrosive metal materials.

The receiver dryer 13 is to solve the problem caused by moisture, and is disposed between the condenser 12 and the evaporator 14 to absorb the moisture contained in the heat exchange medium.

2 is a cross-sectional view schematically showing an example of a receiver dryer according to the prior art. Referring to the drawings, the receiver dryer 20 is provided with an upper baffle 22 and a lower baffle 23 inside the cylindrical body 21 to fill the inner space of the main body 21 with the upper space 24a and the absorbent material. The charging space 24b is divided into the lower space 24c. End caps 27 and 28 are respectively joined to the upper and lower portions of the main body 21 by brazing. The upper cap 27 is coupled to the heat exchange medium inlet pipe 25 and the outlet pipe 26. One end of the heat exchange medium inlet pipe 25 reaches the upper space 24a inside the main body 21, while one end of the heat exchange medium outlet pipe 26 connects the upper baffle 22 and the lower baffle 23. Pass through to reach the lower space 24c. A moisture absorbent is filled in the moisture absorbent filling space 24b. A plurality of holes are drilled in the upper baffle 22 and the lower baffle 23 to allow the refrigerant to flow through the holes of the baffles 22 and 23.

In the receiver dryer 20 as described above, the heat exchange medium is introduced into the upper space 24a through the inlet pipe 25 to fill the upper space 24a. The heat exchanging medium of the upper space 24a passes through the absorbent filling space 24b through the hole of the upper baffle 22, at which time moisture contained in the heat exchanging medium is absorbed by the absorbent. The refrigerant from which moisture is removed may be introduced into the lower space through the lower baffle 23 and may be discharged to the outside through the outlet pipe 26.

However, the receiver dryer 20 has a problem in that the inlet pipe 25 and the outlet pipe 26 is fixed to the end cap 27 of the upper end. In order to install the air conditioning system in the car, it is necessary to consider the size of the device installation space except for the interior space of the car. As shown in FIG. 2, the inlet pipe 25 and the outlet pipe 26 have an upper end cap 27. When fixed to the piping of the connecting pipes connected to the receiver dryer 20 tends to be complicated. In particular, a separate connecting pipe 15b is required to connect the outlet of the condenser and the inlet of the dryer, and has a problem that the pressure of the heat exchange medium is strong due to bending at a predetermined angle for stable connection. In addition, the heat exchange medium introduced into the upper space in the main body through the inlet pipe is lowered to the lower space in the main body through the upper baffle and the lower baffle. There is this.

The present invention has been made in order to solve the above problems, and can be directly connected to the condenser, it is an object of the present invention to provide a receiver dryer of the vehicle air conditioner is not bubble generation and easy to discharge the pure liquid refrigerant.

1 is a schematic view showing a general vehicle cooling system.

2 is a cross-sectional view schematically showing an embodiment of a receiver dryer of a conventional vehicle air conditioner.

3 is a cross-sectional perspective view schematically showing an embodiment of the receiver dryer of the vehicle air conditioner according to the present invention.

* Explanation of symbols for main parts of the drawings

11: compressor 12: condenser

13,20,30: Receiver drier 14: Evaporator

15a, 15b, 15c, 15d: connector 21: main body

22,32: upper baffle 23,34: lower baffle

24a: upper space 24b: charging space

24c: lower space 25: inlet pipe

26,35: outlet pipe 31: tank

33: filter unit body 35a: outlet

36: supply pipe 36a: inlet

37: end cap

In order to achieve the above object, the receiver dryer of the automobile air conditioner of the present invention has a closed space portion, a tank having a heat exchange medium outlet formed on a lower surface thereof, a filter unit installed on the space portion, and having an upper surface opened and a filter installed therein; It is characterized in that it comprises a heat exchange medium supply pipe is installed in the tank to supply the heat exchange medium to the filter unit.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of the receiver dryer of the vehicle air conditioner according to the present invention. 3 is a cross-sectional perspective view schematically showing the receiver dryer of the vehicle air conditioner according to the present invention.

Referring to the drawings, the receiver dryer 30 of the automobile air conditioner according to the present invention has a cylindrical tank 31 having a closed space. The tank 31 has a heat exchange medium outlet pipe 35 formed on its lower surface, and a filter unit is attached to the space in the tank 31. The filter unit is located on the cylindrical body 33, the upper surface of the main body 33, the upper baffle 32 is formed with a through hole 32a radially, and located on the lower surface of the main body 33 to seal the space The lower baffle 34 and the filter 33b embedded in the main body 33 are made of, for example, a hygroscopic material. The upper baffle 32 is circular and has a structure in which a central portion rises so that the heat exchange medium flowing out of the upper baffle 32 through the through holes 32a flows to the edge of the upper baffle 32 by the inclination due to the height difference. I will go. In addition, the present invention has a support (not shown) that connects the filter unit and the tank inner wall and mutually supports the filter unit, and the filter unit and the tank inner wall are spaced a predetermined distance to form a heat exchange medium passage. The heat exchange medium supply pipe 36 coupled to the bottom surface of the filter unit is bent from the bottom surface of the tank 31 to protrude out of the tank 31, and the outlet pipe 35 is integrated with the tank 31. Protrudes. At this time, the lower surface of the tank 31 is in one direction, for example, preferably inclined in the outflow pipe 35 direction. Unexplained reference numeral 37 denotes an end cap brazed to the top of the tank 31 to seal the tank 31.

The operation of the receiver dryer configured as described above is as follows.

The heat exchange medium phase-changed from the condenser to the high temperature and high pressure liquid heat exchange medium is introduced into the filter unit body 33 of the receiver dryer 30 through the lower baffle 34 through the inlet 36a of the supply pipe 36. The heat exchange medium introduced into the filter unit body 33 may remove moisture and foreign substances contained in the heat exchange medium by the action of the filter 33b, and the heat exchange medium from which moisture and foreign substances are removed may pass through the upper baffle 32. It flows into the upper space 31a through 32a. The heat exchange medium ejected into the upper space 31a descends to the lower space 31b through an empty space between the filter unit and the inner wall of the tank 31 and flows along the inclined bottom surface to form an outlet pipe 35 formed at the end thereof. Spill out through.

The receiver dryer of the automobile air conditioner according to the present invention has the following effects.

First, there is no bubble of heat exchange medium.

The receiver dryer (30) guides the heat exchange medium passing through the filter (33b) in the filter unit body (31) mounted inside the cylindrical tank (31) to the inner wall of the tank (31) along the domed upper baffle (32). Since it flows out through the outlet port 35a of the outlet pipe 35 along the bottom surface of the tank 31 from the inner side, it does not directly collide with the bottom surface, and thus there is no bubble generation.

Second, it is easy to leak heat exchange medium.

The receiver dryer 30 of the vehicle air conditioner according to the present invention is the heat exchange medium introduced through the inlet conduit 36, the filter 33b and the upper baffle 32 in the lower baffle 34 and the filter unit body 33. After being injected into the upper space (31a) through the space formed between the filter unit body 33 and the inner wall of the tank 31 is lowered in the direction of gravity, that is, since the flow of the heat exchange medium is easier than before. In addition, since the lower surface of the tank 31 is inclined, it flows out along the inclined surface through the outflow pipe 35 more easily than in the related art.

The present invention has been described with reference to one embodiment shown in the 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 therefrom. Therefore, the true technical protection scope of the present invention should be defined only in the appended utility model registration claims.

Claims (1)

An end cap coupled to the open upper portion to form a sealed space therein, and a tank having a through hole to which a heat exchange medium supply pipe and an outlet pipe are connected to allow the heat exchange medium to flow in and out; To be accommodated in the space portion, With a cylindrical body, An upper baffle coupled to an upper portion of the main body, inclined downward from a center to form a curved surface along an outer circumferential edge, and having a plurality of through holes radially formed in the curved surface; A lower baffle coupled to a lower portion of the main body and connected to an end of the heat exchange medium supply pipe; A filter unit having a filter mounted in the main body; And And a supporter coupled to the inner wall of the tank and the filter unit and supporting the tank.