KR20050015761A - A Condenser for a Car Air Conditioning System - Google Patents

Abstract

PURPOSE: A condenser for an air conditioner of a vehicle is provided to improve assembling force, and to reduce the cost and the working process by directly bonding one of a couple of header pipes to a receiver driver tank through a brazing material connector pipe. CONSTITUTION: A condenser of an air conditioner for a vehicle is composed of a couple of header pipes, a receiver drier tank installed at one of a couple of header pipes, and a connector pipe communicating one of the header pipes with the receiver drier tank. The connector pipe is composed of a communication pipe(102) made of brazing material and composed of a communication hole(102-1), and a connector(104) having a containing part(104-2) storing the communication pipe. The communication pipe is formed by bending the panel on which brazing material is spread. The stepped portion is formed outside the communication pipe in radial direction, and the bore of the containing part of the connector is formed to be smaller than the stepped portion of the communication pipe.

Description

Condenser for Vehicle Air Conditioning System {A Condenser for a Car Air Conditioning System}

The present invention relates to a condenser used in a vehicle air conditioner, and more particularly, a connector pipe connecting any one side of the first and second header pipes of the condenser and the receiver dryer tank may be joined by forming a brazing material. The present invention relates to a condenser for a vehicle air conditioner capable of strengthening its fastening force.

In general, a condenser used in a vehicle air conditioner or the like is located in front of a vehicle engine room and heats the refrigerant gas in a gas state introduced from the compressor to the outside using a cooling fan to cool the refrigerant. It is a heat exchanger that functions to condense.

FIG. 1 illustrates a general cooling system S of a vehicle air conditioner. As illustrated, the compressor CP may easily condense a refrigerant having a low temperature and a low pressure discharged from an evaporator EV. Compressed to a condenser (CD), and the condenser (CD) condenses to a liquid state by heat-exchanging the refrigerant converted into a gaseous state of high temperature and high pressure by a compressor (CP) through a cooling fan.

The refrigerant, which has undergone a phase change in the liquid state as described above, passes through a receiver dryer tank (RI) in order to remove moisture and foreign substances contained in the refrigerant, and then the refrigerant having a high temperature and high pressure is cooled at a low temperature and a low pressure. The evaporator EV is reached through an expansion valve VA that expands with the refrigerant, and the refrigerant evaporates from the liquid state into the gas state in the evaporator EV. At this time, the latent heat of evaporation lowers the surrounding temperature, and thus, the cooled air is supplied to the interior of the vehicle by using a blower.

2 is related to a condenser (CD) for a vehicle air conditioner according to the prior art, and as shown, a pair of header pipes 10 and 20 and a pair of header pipes 10 and 20 as shown. Receiver dryer tank (30) connected to any one of the), and a plurality of tubes (40) having both ends fixed to the pair of header pipe (10, 20) and a refrigerant flow path therein, and Corrugated fin 50 is provided between the tube 40, and the support 60 provided on both sides of the tube (40). Here, a connector pipe 70 having a communication hole 72 formed inside is provided between any one side of the pair of header pipes 10 and 20 and the receiver dryer tank 30.

However, according to the condenser CD for a vehicle air conditioner according to the related art as described above, one side of the pair of header pipes 10 and 20 and the receiver dryer tank 30 are connected to the connector pipe 70. If you want to connect to side), you need to have a brazing material (Clad material) outside the connector pipe (70), so that the header pipe (10) and receiver dryer tank (30) when brazing the condenser ) Can be combined. However, the conventional connector pipe 70 is processed through forging or extrusion, making it difficult to apply the brazing material. Therefore, the connector pipe 70 is provided with a welder ring (not shown), which is a separate brazing material, at the position where the connector pipe 70 is engaged with the header pipe 10, 20 or the receiver dryer tank 30. This has a problem of increasing manufacturing costs.

In addition, when the connector pipe 70 is connected to any one side of the pair of header pipes 10 and 20 and the receiver dryer tank 30, a process of joining a separate brazing material should be involved, so that work There was a problem of increased karate.

Accordingly, the present invention has been made to solve the above problems, it is possible to directly join any one side of the pair of header pipe and the receiver dryer tank through a connector pipe formed of a brazing material (Clad material, etc.). The aim is to reduce costs and labor.

According to the condenser for a vehicle air conditioner according to the present invention devised to solve the above technical problem, a pair of header pipe (Header Pipe); A receiver drier tank mounted on one side of the pair of header pipes; In the condenser for a vehicle air conditioner including a connector pipe for connecting any one side of the pair of header pipe and the receiver dryer tank, the connector pipe is provided with a communication hole on the inside and brazing material A communication pipe including a connector and a connector provided with a receiving unit accommodating the communication pipe are coupled to each other to form a body.

Here, the communication pipe is characterized in that the step (D) is formed on the outer side in the radial direction at the predetermined position.

The inner diameter of the accommodating portion constituting the connector is smaller than the outer diameter of the step forming portion of the communication pipe.

Also. The communication pipe may be formed by bending a plate material coated with a brazing material.

Hereinafter, an embodiment according to the present invention will be described in detail with reference to FIGS. 4 to 6.

First, among the technical components of the condenser for a vehicle air conditioner according to the present invention, a pair of the header pipe 110, the receiver dryer tank 120, a plurality of tubes (not shown), and a heat radiation fin (not shown) And, since the support (not shown) has already been described in the prior art, a detailed description thereof will be omitted, except that the connector pipe 100 communicates one side portion of the pair of header pipes 110 with the receiver dryer tank 120. Note that there are differences only in the changes in shape and behavior.

According to the condenser for a vehicle air conditioner according to the present invention, a pair of header pipes (Header Pipe 110); A receiver drier tank (120) mounted to one side of the pair of header pipes (110); In the condenser for a vehicle air conditioner including a connector pipe (100) for communicating one side of the pair of header pipe (110) and the receiver dryer tank (120), the connector pipe (100) A connector (104) having a communication hole (102-1) provided therein and including a communication pipe (102) including a brazing material and a receiving portion (104-2) for receiving the communication pipe (102). Is coupled to each other to form a body.

The connector pipe 100 is brazed to any one side of the pair of header pipes 110 and the receiver dryer tank 120 and flows into the header pipe 110 through a communication hole 102-1. The refrigerant is discharged to the receiver dryer tank 120 side.

6 is a schematic cross-sectional view showing a state in which a header pipe and a receiver dryer tank communicate with each other via a connector pipe 100 according to the present invention. As shown, the peripheral surface shape of the connector 104 is formed to be the same as the outer diameter of the header pipe 110 and the receiver dryer tank 120 to be bonded to the connector 104 to improve the bonding property do. That is, it is preferable to increase the width of the portion of the connector 104 joined to the header pipe 110 and the receiver dryer tank 120 to strengthen the fastening force.

And the said communication pipe 102 is characterized by processing by forming the step D in the radially outer side at the predetermined position. The communication pipe 102 is coupled to the header pipe 110 and the receiver dryer tank 120 and then expanded at both ends thereof, thereby preventing the condenser (CD) refrigerant from leaking and blocking the inflow of foreign substances. do.

In addition, the connector 104, the inner diameter of the receiving portion 104-2 is characterized in that it is formed smaller than the outer diameter of the step (D) forming portion of the communication pipe (102). By forming the step (D) as described above it is possible to maximize the coupling force when coupling the connector 104 and the communication pipe 102.

In addition, the communication pipe 102 is manufactured by bending a plate material coated with a brazing material.

As described above, according to the condenser for a vehicle air conditioner according to the present invention, the connector pipe 100 is configured to include a brazing material (Clad material), thereby connecting the connector pipe 100 to the pair of header pipes 110. In order to be directly bonded to any one side and the receiver dryer tank 120 side of the), it is possible to omit the work process of bonding using a separate brazing material (Welder Ring).

While the exemplary embodiments of the present invention have been described above by way of example, the scope of the present invention is not limited to the specific embodiments, and those skilled in the art are appropriate within the scope described in the claims of the present invention. It will be possible to change.

As described above, according to the condenser for a vehicle air conditioner according to the present invention, a connector pipe formed of a brazing material (Clad material, etc.) allows direct connection between one side of a pair of header pipes and a receiver dryer tank. It is effective to reduce cost and labor.

1 is a configuration diagram showing an example of a cooling system for a general vehicle air conditioner,

2 is a perspective view showing a condenser for a vehicle air conditioner according to the prior art,

3 is a schematic front sectional view of the condenser according to FIG. 2,

4 is a perspective view showing a connector pipe according to the present invention;

5 is a cross-sectional view taken along the line A-A according to FIG.

6 is a schematic partial cross-sectional view showing a state in which a connector pipe according to the present invention is joined to a header pipe and a receiver drier tank.

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

CD ... Condenser,

100 ... Connector Pipe,

102.Communication pipe,

102-1 ... Communication Hall,

104 ... Connector,

110.Header Pipe,

120 ... Receiver Drier Tank

Claims (4)

A pair of header pipes (Header Pipe 110); A receiver drier tank (120) mounted to one side of the pair of header pipes (110); A connector pipe (100) for communicating one side of the pair of header pipes (110) and the receiver dryer tank (120); In the condenser for vehicle air conditioning apparatus comprising: The connector pipe 100 includes a communication pipe 102 having a communication hole 102-1 formed therein and including a brazing material, and a receiving part 104-2 for accommodating the communication pipe 102. Condenser for a vehicle air conditioner, characterized in that the connector (Connector, 104) is coupled to each other to form a body. The method of claim 1, The communication pipe (102) is a condenser for a vehicle air conditioner, characterized in that a step (D) is formed on the outer side in the radial direction at a predetermined position. The method of claim 1, The connector 104 is a condenser for a vehicle air conditioner, characterized in that the inner diameter of the receiving portion (104-2) is formed smaller than the outer diameter of the step (D) forming portion of the communication pipe (102). The method according to claim 1 or 2, The communication pipe 102 is a condenser for a vehicle air conditioner, characterized in that for molding by bending a plate material coated with a brazing (Brazing) material.