KR20060021444A - Header-tank for heat exchanger using in vehicle - Google Patents

Abstract

The present invention relates to a header tank for an automotive heat exchanger having a structure capable of smoothly inducing circulation of a heat exchange medium to increase heat exchange efficiency, and for this purpose, a second header disposed below the first and second header tanks disposed opposite to each other. By forming a circulation conduit or a space block body in the cap of the tank is uniformly distributed heat exchange medium circulated unevenly into the tube is characterized in that the synergistic effect of the heat exchange is expressed. The present invention distributes the heat exchange medium evenly through each tube, thereby maximizing the actual heat exchange area, thereby improving the performance of the heat exchanger.

Heat exchange medium, manifold, automobile, heat exchanger, header, tank, flow path, bulkhead

Description

Header-Tank For Heat Exchanger Using In Vehicle

Figure 1a is a first configuration showing the circulation of a conventional heat exchanger and heat exchange medium,

1B is a conceptual diagram illustrating a distribution of a heat exchange medium according to FIG. 1A;

Figure 1c is a second configuration showing the circulation of the conventional heat exchanger and heat exchange medium,

Figure 2a is a configuration diagram applied to a header tank for a heat exchanger for the vehicle according to the invention,

2b is a conceptual diagram illustrating a distribution of a heat exchange medium according to FIG. 2a;

Figure 2c is an enlarged perspective view showing the cap extracted in Figure 2a,

3 is a perspective view of a cap showing another embodiment of FIG. 2C.

1: first header tank 2: manifold

3: second header tank 5a: bulkhead

5b: diaphragm 4: tube

5: heating fin 9: heat exchanger

10: first header tank 11: header

12: tank 13: bulkhead

12: manifold 20: second header tank

30: tube 40: heating fin                 

50: cap 51: circulation pipe

52: gap block 100: heat exchanger

The present invention relates to a header tank for an automotive heat exchanger having a structure capable of smoothly inducing circulation of a heat exchange medium to increase heat exchange efficiency, and for this purpose, a second header disposed below the first and second header tanks disposed opposite to each other. By forming a circulation conduit or a space block body in the cap of the tank is uniformly distributed heat exchange medium circulated unevenly into the tube is characterized in that the synergistic effect of the heat exchange is expressed. The present invention distributes the heat exchange medium evenly through each tube, thereby maximizing the actual heat exchange area, thereby improving the performance of the heat exchanger.

In general, the automotive heat exchanger is installed in the air conditioning system and the engine cooling water system to change the refrigerant and cooling water to a desired temperature by using the flow of external air. Among the heat exchangers, the heat exchanger used in the air conditioning system is a condenser, an evaporator, and Radiator used for engine cooling is a typical example.

Looking at the configuration of the air conditioning system used in the above air conditioner, a compressor for converting the refrigerant into a gas of high temperature and high pressure, a condenser to liquefy the gas of high temperature and high pressure, the amount required to remove the moisture and dust, etc. A receiver dryer that temporarily stores refrigerant to supply the evaporator to an evaporator, an expansion valve that forms a frost-like form of low temperature and low pressure so as to facilitate heat exchange in the evaporator, and an evaporator that generates cold air by heat exchange with air introduced by a blower unit. The refrigerant passing through the evaporator is circulated again to the compressor.

Among the heat exchangers, the condenser and the evaporator heat-exchange the refrigerant necessary for the operation of the air conditioner with the latent heat of high temperature or high temperature or low pressure to liquefy or evaporate the refrigerant to generate cold air. It plays the role of converting the coolant, which has been heated through diesel, into the low temperature state by exchanging heat with the surrounding latent heat.

Hereinafter, with reference to the accompanying drawings with respect to the problems of the heat exchanger for automobiles such as the condenser and the evaporator described above will be described.

1A is a first configuration diagram illustrating a circulation of a conventional heat exchanger and a heat exchange medium, and FIG. 1B is a conceptual diagram illustrating a distribution of a heat exchange medium according to FIG. 1A.

As shown in FIGS. 1A and 1B, a heat exchanger 9 is conventionally provided with first and second header tanks 1 and 3 facing up and down to increase a circulation path of a heat exchange medium circulating therein. The partition 5a was installed in the wall.

At this time, the first header tank 1 was installed with a diaphragm 5b at the center, and a partition 5a was partially installed only at the manifold 2 where the heat exchange medium flowed out / inflowed to induce circulation of the heat exchange medium. .

That is, such a structure allows the heat exchange medium to flow through the first header tank 1, and then passes through the tube 4 and the second header tank 3 to the first header tank 1, the tube 4, and the first header tank 1. This is to induce a circulation path so that the second header tank 3 and the first header tank 1 can flow out.

However, in the conventional heat exchanger 9, when the heat exchange medium is moved from the second header tank 3 to the first header tank 1, uneven inflow of the heat exchange medium into the tube 4 occurs.

This is because when the heat exchange medium passes through the second header tank 3 disposed underneath, the heat exchange medium has a phenomenon in which its capacity is rapidly concentrated in the other region of the second header tank 1. The heat exchange medium has a problem that the capacity is reduced.

Therefore, the corresponding tube furnace 5 in one region has a problem in that a lack of heat exchange medium is generated and the performance of heat exchange is lowered (shown in FIG. 1B).

Figure 1c is a second configuration showing the circulation of a conventional heat exchanger and heat exchange medium.

As shown in FIG. 1C, the heat exchanger 9 is conventionally disposed at a lower portion of the first and second header tanks 1 and 3 facing up and down to increase the circulation path of the heat exchange medium circulating therein. The partition 5a was provided only in the 2nd header tank 3 arrange | positioned.

This structure has a shorter circulation path of the heat exchange medium than the heat exchanger described above, so that the heat exchange efficiency is reduced, and similarly to the heat exchanger of FIG. 1A, the heat exchange medium moves from the second header tank 3 to the first header tank 1. When there is a problem that the non-uniform inflow of the heat exchange medium into the tube (4) occurs.

Accordingly, the present invention has been made in view of the above-described conventional problems, and the first object of the present invention is to smoothly induce circulation of the heat exchange medium and to distribute the heat exchange medium evenly throughout each tube. The heat exchange area is maximized to provide a header tank for an automotive heat exchanger structure that can improve the performance of the heat exchanger.

In addition, the second purpose is to form a circulation conduit or a spacing block body in the cap of the second header tank disposed at the lower side of the first and second header tanks disposed opposite to each other, thereby uniformly distributing the heat exchange medium circulated unevenly through the tube. It is to provide a header tank for an automotive heat exchanger that exhibits a synergistic effect of heat exchange.

The object of the present invention, the first header, the second header tank which is composed of a separate tank and the header to form an internal flow path, the cap coupled to both openings of each of the header tank to seal the refrigerant passage, and each of the header tank In the heat exchanger for an automobile comprising a tube coupled in parallel between each of the header tanks so as to communicate with each other, and a heat transfer fin coupled between the tubes so that the heat exchange medium circulating the tubes can be heat exchanged.

The first and second header tanks are provided with a partition wall for partitioning the inner flow passage 13 in the longitudinal direction to increase the circulation path of the heat exchange medium.

One side of the first header tank is coupled to a pair of manifolds respectively connected to the internal flow path partitioned to flow in and out of the heat exchange medium,

Caps coupled to both sides of the second header tank is achieved by a header tank for a vehicle heat exchanger, characterized in that it comprises a circulation pipe formed on the outside to guide the circulating heat exchange medium.                         

The cap coupled to both sides of the second header tank is preferably configured to include a space block body formed inside to induce a circulating heat exchange medium.

Other objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and the preferred embodiments associated with the accompanying drawings.

Hereinafter, with reference to the accompanying drawings with respect to the heat exchanger header tank for a vehicle according to the present invention will be described in detail.

FIG. 2A is a schematic diagram illustrating a header tank for an automotive heat exchanger according to the present invention, and FIG. 2B is a conceptual diagram illustrating a distribution of a heat exchange medium according to FIG. 2A, and FIG. 2C is an enlarged perspective view illustrating a cap extracted in FIG. 2A.

As shown in Figures 2a, 2b and 2c, the present invention is to the cap 50 of the second header tank 20 disposed at the bottom of the first and second header tanks (10, 20) arranged opposite to each other A header tank 100 for an automotive heat exchanger having a structure in which a heat exchange medium that is non-uniformly circulated to the tube 30 by forming a circulation pipe 51 or an interval block body 52 may be uniformly distributed to express a synergistic effect of heat exchange. It is about.

The header tank 100 for the automotive heat exchanger 100 is divided into three parts, which are arranged so that the first and second header tanks 10 and 20 disposed to face each other and the header tanks 10 and 20 are in communication with each other. Heat transfer fins coupled between the tubes 30 coupled in parallel between the header tanks 10 and 20 and the tubes 30 so that heat exchange media circulating through the tubes 30 may be heat exchanged. 40).

Here, each of the header tanks 10 and 20 is divided into a tank 12 and a header 11 so that an internal flow path may be formed for circulation of the heat exchange medium. Single barrier ribs 13 for increasing the circulation path twice to increase the heat exchange efficiency of the heat exchange medium are constructed.

In addition, the first header tank 10 is disposed above the heat exchanger 100, and one side of the first header tank 10 is provided with a manifold 12 connection structure for outflow / inflow of a heat exchange medium.

The manifolds 12 are individually connected to two partitioned internal flow paths so that the incoming heat exchange medium flows out through the tube 30 and the second header tank 20 to the first header tank 10 again. Can be.

In addition, the second header tank 20 is configured by attaching a cap 50 that seals both ends so that the heat exchange medium introduced through the manifold 12 is circulated. The cap 50 further includes a circulation conduit 51 formed on an outer side of the cap 50 to guide the heat exchange medium circulating while enclosing the second header tank 20 to another internal flow path.

Hereinafter, the circulation structure of the heat exchange medium will be briefly described.

First, the heat exchange medium introduced into the first header tank is moved to the second header tank disposed below the tube by the pressure and the own weight.

The heat exchange medium transferred to the second header tank is induced to both sides of the second header tank by pressure, and a phenomenon in which the capacity is rapidly concentrated in both regions of the second header tank occurs (shown in FIG. 2B).

However, the heat exchange medium is evenly distributed to other internal flow paths partitioned along the circulation passages of the caps connected to both sides of the second header tank, and the heat exchange medium thus introduced is uniformly reintroduced back into the tube to the first header tank. Discharged.

3 is a perspective view of a cap showing another embodiment of FIG. 2C.

As shown in Figure 3, the cap 50 may be configured to include a space block body 52 formed inside to guide the heat exchange medium circulating in the embodiment.

The cap 50 may be configured to include a space block body 52 formed inside to guide the heat exchange medium circulating in the embodiment.

The gap block 52 is in close contact with the partition 13 partitioning the internal flow path of the second header tank 30 to form a gap as much as the gap block between the partition 13 and the cap 50. For sake.

Along this gap, the heat exchange medium is provided with a structure that can lead to other internal flow paths.

Therefore, the present invention can increase the heat exchange efficiency of the heat exchange medium, the heat exchange area is not only maximized, it is possible to thereby achieve the comfort of the interior of the vehicle.

As described above, according to the header tank for an automotive heat exchanger according to the present invention, the heat exchange efficiency of the circulating heat exchange medium can be increased by forming a circulation conduit or an interval block body in a cap that seals the two header tanks. .

In addition, the existing heat exchanger can be easily applied there is no need for a separate assembly facility. As a result, it is possible to improve compatibility, assemblability, and thermal efficiency as compared to conventional orthogonal manifold coupled heat exchangers.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, various other modifications and variations may be made without departing from the spirit and scope of the invention. Accordingly, it is intended that the appended claims cover such modifications and variations as fall within the true scope of the invention.

Claims (2)

The first and second header tanks 10 and 20 separated from the tank 12 and the header 11 to form an internal flow path 13, and coupled to both openings of the header tanks 10 and 20, respectively, are refrigerant. A cap 50 for sealing a flow path, a tube 30 coupled in parallel between each of the header tanks 10 and 20 so that the header tanks 10 and 20 can communicate with each other, and the respective tubes 30. In the heat exchanger for automobiles consisting of heat transfer fins 40 are coupled between each tube 30 so that the heat exchange medium circulating the heat exchange medium, The first and second header tanks 10 and 20 are provided with a partition wall 13 for longitudinally partitioning the inner flow path in order to increase the circulation path of the heat exchange medium. One side of the first header tank 10 is coupled to a pair of manifolds 12 which are respectively connected to the internal flow paths partitioned to flow in and out of the heat exchange medium, Cap 50 coupled to both sides of the second header tank (20) is a header tank for an automotive heat exchanger, characterized in that it comprises a circulation pipe 51 formed on the outside to guide the circulating heat exchange medium. The method of claim 2, The cap 50 coupled to both sides of the second header tank 20 includes a spacer block 52 formed therein so as to induce a circulating heat exchange medium. .

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