KR200298543Y1 - Integral condenser - Google Patents

Abstract

The present invention relates to a receiver integrated condenser used in a vehicle refrigeration cycle, the tank 11 of the return tank 5 has a quadrangular shape of approximately one side is opened, the bridge (12) on the outer peripheral surface of the tank (11) ) Is combined in the longitudinal direction.

The bridge 12 is formed with a receiving groove 12a that surrounds the outer circumferential surface of the tank 11 on one side thereof, and the other side is brazed and separated from each other with the receiver 13 having a cylindrical cross section. Upper and lower communication holes 12b and 12c communicating with the tank 11 and the receiver 13 are formed in the upper and lower portions of the bridge 12, respectively, to distribute the refrigerant.

Bridge 12 is formed in the same length in the longitudinal direction with respect to the return tank (5) and the receiver 13, each of the opening is sealed by a single end cap 14, 15 in the return tank By brazing a group via the bridge | bridging, seismic resistance can be improved.

Description

Integral condenser

The present invention relates to a receiver integrated condenser used in a vehicle refrigeration cycle, in particular to increase the coupling force between the head tank and the receiver.

The vehicle refrigeration cycle forms a refrigerant circuit in which a compressor, a condenser, a receiver, an expansion valve, and an evaporator are sequentially connected. The refrigerant circulates along the refrigerant circuit, and cools the air while exchanging heat with external air during this circulation process.

The receiver is to separate the phase-converted refrigerant from the condenser by gas-liquid so that only the liquid refrigerant flows into the expansion valve. Is being presented.

As an example, Japanese Patent Application Laid-Open No. 4-257670 includes a connector tank in which an inlet pipe and an outlet pipe are coupled, a return tank stacked therein, and a receiver capable of gas-liquid separation communicating with the return tank, and having an upper portion of the receiver. Is in communication with the upper portion of the return tank, the lower portion of the receiver is communicated to the lower portion of the return tank through a lower communication hole having a predetermined fluid resistance, the refrigerant circulation flow flowing into the lower portion of the return tank in the upstream condensation pipe Flows upwards through the return tank, passes through the receiver, and the liquid refrigerant flows into the downstream condensation tube for subcooling through the lower communication hole.

However, according to such a configuration, the conventional receiver integrated condenser has a lack of durability due to the lack of the junction area between the intermediate header and the receiver, and has a limit in the shock resistance corresponding to the vibration of the vehicle.

The present invention has been devised in view of this point, and an object of the present invention is to provide a receiver integrated condenser that can increase durability and earthquake resistance by increasing the contact area between the return tank and the receiver.

The receiver integrated condenser of the present invention for achieving this object is a connector tank and return consisting of a plurality of tubes arranged in a horizontal direction, a header connected in communication with both ends of the tube and a tank in combination with the header to form a flow path A tank, a bridge communicating with the upper and lower tanks of the return tank and having a same inner circumferential surface that receives and circumscribes the outer circumferential surface thereof, and which contacts in the longitudinal direction, and communicates with the upper and lower portions of the bridge, respectively, and the outer peripheral surface and the longitudinal direction It characterized in that it comprises a receiver that is in contact with.

The return tanks, bridges, and receivers have the same latitude at each end and each upper and lower openings are closed by one end cap, or are formed to be stepped with a short length in the longitudinal direction and individually closed. You may be.

According to such a structure, durability and earthquake resistance can be improved by raising the joining force through a bridge between a return tank and a receiver.

1 is a front view of the receiver integrated condenser of the present invention,

2 is an enlarged sectional view of the main part according to the present invention;

3 is a cross-sectional view taken along the line A-A of FIG.

Figure 4 is a cross-sectional view showing another embodiment of the present invention.

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

1; condenser 2; tube

3; corrugated pin 4; connector tank

5; return tank 6; inlet pipe

7; outlet pipe 8, 9; baffle

10; header 11; tank

12; bridge 12a; receiving groove

12b; upper communication hole 12c; lower communication hole

13; receiver 14-17; baffle

1 is a front view showing a receiver integrated condenser according to the present invention, Figure 2 is a sectional view of the main part of the present invention, Figure 3 is a cross-sectional view taken along line A-A of FIG.

The condenser, shown in its entirety by reference numeral 1, is laminated between the plurality of tubes 2 via a corrugated fin 3. Each end of the tube 2 is inserted in communication with the connector tank 4 and the return tank 5 facing each other.

The inlet pipe 6 and the outlet pipe 7 are coupled to the upper and lower portions of the connector tank 4, and a plurality of baffles 8 and 9 are provided in each tank to coolant flow in a zigzag.

The connector tank 4 and the return tank 5 form a refrigerant flow path by combining two plates, each of which is coupled with the header 10 and the header 10 in communication with the tube 2. It consists of the tank 11.

The tank 11 of the return tank 5 has a quadrangular shape with one side opened, and the bridge 12 is coupled to the outer circumferential surface of the tank 11 in the longitudinal direction.

The bridge 12 is formed with a receiving groove 12a that surrounds the outer circumferential surface of the tank 11 on one side, and the other side is brazed and separated from each other with the receiver 13 having a cylindrical cross section. The bridge 12 and the receiver 13 may be integrally formed by extrusion molding. In addition, upper and lower communication holes 12b and 12c communicating with the tank 11 and the receiver 13 are respectively formed in the upper and lower portions of the bridge 12 to distribute the refrigerant.

In addition, the bridge 12 is formed with the same length in the longitudinal direction with respect to the return tank 5 and the receiver 13, and each opening is sealed by one end cap 14, 15, another implementation For example, the overall length of the bridge 12 may have a constant step with respect to the return tank 5 and the receiver 13 as shown in FIG. 4, and each opening may be sealed with two end caps 16-19.

Hereinafter, the operation of the present invention will be described by dividing the tube into upper, middle, and downstream tubes according to the flow path of the refrigerant for convenience.

The present invention is a high temperature and high pressure air refrigerant compressed by the compressor flows through the inlet pipe (6) in communication with the connector tank (4) and then returned through the upper half of the tube (2) around the baffles (8) (9) As it is distributed to the tank (5), it is heat exchanged, and then flows into the receiver (13) through the upper communication hole (12b) of the bridge (12).

The relatively liquid refrigerant flowing into the receiver 13 is separated into gas and liquid by its own weight. That is, the gaseous refrigerant is collected in the upper part of the receiver 13, and the liquid refrigerant is dropped to the lower part of the receiver 13 by its own weight.

The liquid refrigerant separated in this way is supercooled while passing through the lower half of the tube (2) through the lower communication hole (12c) of the bridge 12 in communication with the lower part of the receiver (13) to flow out to the outlet pipe (7) Has

In the receiver integrated condenser having such a refrigerant circuit, the present invention can overcome the limited space of the engine room by brazing the return tank 5 and the receiver 13 integrally, and in particular, the return tank 5 and the fluid The vibration resistance can be improved by combining the return tank 5 and the receiver 13 by the bridge 12 via the bridge 12 between the groups 13.

That is, the receiving groove 12a that can accommodate the outer peripheral surface of the tank 11 of the return tank 5 is formed on one side of the bridge 12, and the portion contacting the return tank 5 in a substantially rectangular shape. By allowing the three surfaces to contact each other to increase the contact area between each other, the coupling force can be increased to increase the vibration resistance against vibrations generated during vehicle vibration or refrigerant flow.

The bridge 12 is extruded separately from the receiver 13 as in the embodiment, and then braze-coupled with the tank 11 at the time of manufacturing the condenser 1, on the contrary, the bridge 12 and the receiver ( 13) may be integrally injection molded and brazed to the tank 11.

In the present invention, the upper surface of the return tank 5, the bridge 12, and the receiver 13 are located on the same contour, so that the return tank 5 and the sap by the single end caps 14 and 15 are arranged. It is possible to reduce the manufacturing process and manufacturing cost by sealing the opening of the machine 13, in another embodiment as shown in Figure 4 by manufacturing the bridge 12 has a difference between the return tank 5 and the receiver 13 Each lower opening may be sealed by two lower end caps 16-19.

As described above, the present invention can improve the seismic resistance to vehicle vibration by coupling the receiver to the return tank via a bridge having an inner circumferential surface formed between the return tank and the receiver in the same way as the cross-sectional shape thereof. have.

In addition, by placing the ends of the return tank, the bridge, and the receiver in the same contour, it is possible to seal their openings by a single end cap, thereby reducing the manufacturing cost.

Claims (5)

A connector tank having upper and lower coolant inlet pipes and outlet pipes, respectively; A return tank spaced apart from the connector tank; Cooling fins installed alternately between the tube and the tube is inserted into the end of the connector tank and return tank and communicate; A bridge having an inner circumferential surface that is in communication with the upper and lower tanks of the return tank, and receives and contacts the outer circumferential surface thereof in a longitudinal direction; And And a receiver in contact with the outer circumferential surface of the bridge in the longitudinal direction and in communication with the return tank. The receiver integrated heat exchanger of claim 1, wherein the return tank, the bridge, and the receiver have their respective ends positioned on the same contour line. 3. The receiver integrated heat exchanger of claim 2, wherein the upper and lower openings of the return tank and the receiver are closed by one end cap, respectively. The receiver integrated heat exchanger according to claim 1, wherein the bridge is formed to have a step height having a short height difference with respect to the longitudinal direction of the return tank and the receiver. 5. The receiver integrated heat exchanger according to claim 4, wherein the upper and lower openings of the return tank and the receiver are respectively closed by two end caps.