KR20130008763A - Radiator - Google Patents

Abstract

PURPOSE: A radiator is provided to increase heat exchange performance, and to lower the pressure of coolant as the volume of a tank is reduced. CONSTITUTION: A radiator(100) comprises a plurality of tubes(120) and a pair of header tanks(110). The header tanks comprise headers(111) and tanks(112) forming a space for a fluid path connected to the headers. The end side of a joint part between the tank and the header is a foot, the inside of the foot does not have stepped parts. A plurality of protrusions(112a) protrudes from the outside of the foot. The header comprises a settling part(111a) formed into a through hole shape, and the protrusions are stuck to the settling part.

Description

Radiator {Radiator}

The present invention relates to a radiator.

Radiators are devices that release some of the heat generated by internal combustion engines through coolant into the atmosphere. In general, internal combustion engine always generates a very large amount of heat in the process of igniting and burning high-temperature and high-pressure gas. Therefore, if it is not cooled, various components including cylinders and pistons melt or burn due to overheating. Damage and breakage will occur. Therefore, a jacket is provided around the cylinder to circulate the cooling water, and the cooling water is circulated inside the jacket, so that the engine is cooled by absorbing heat generated from the engine. However, since the coolant also absorbs heat from the engine for a long time and becomes unable to absorb heat from the engine any longer, a device for cooling the coolant is required. The radiator circulates and cools the coolant at such a high temperature. Giving device.

On the other hand, not only the trend toward compactness of vehicle components is increasing at present, but also for various reasons such as pedestrian protection in case of an accident, the height standard of the cooling module provided in the vehicle is gradually decreasing. In addition, in recent years, as the policy is reorganized to calculate the premium by RCAR test, the necessity to reduce the cooling module package provided on the front side of the vehicle is increasing.

As described above, according to the shrinking demand of the cooling module package, the trend toward slimmer and compact design of each component is increasing, and the same is true for the radiator. In more detail, various studies have been conducted on the design of a radiator having a slimmer shape than the conventional one by improving the design of the gasket coupling portion or the coupling portion between the header and the tank.

Figure 1 shows the structure of a conventional slim radiator. Fig. 1A is a perspective view and Fig. 1B is a sectional view, respectively. The slim radiator is also coupled to a plurality of tubes 120 arranged in parallel at regular intervals in parallel to the air blowing direction as in a general radiator, and a pair of header tanks coupled to both ends of the tube 120 to distribute heat exchange media ( 110 '), and may further include a fin that is interposed between the tubes 120 and increases a heat transfer area with air flowing between the tubes 120, similarly to a general radiator.

In the conventional slim radiator 100 ′ shown in FIG. 1, the header tank 110 ′ is combined with the header 111 ′ and the header 111 ′ into which the tube 120 is inserted and coupled, and the flow path is distributed. It comprises a tank 112 'forming a space to be. In this case, a step is formed in a foot portion of the tank 112 '(that is, the end portion coupled to the header 111'), and the header 111 'is a foot of the tank 112'. The clamping is coupled to the step of the assembly of the header tank 110 'is completed.

On the other hand, the overall assembly process of such a slim radiator 100 'is as follows. First, the tubes 120 may be arranged in alignment (in this case, a pin may be interposed between the tubes 120, and a support may be disposed at both outermost sides of the arrangement of the tubes 120). The headers 111 'are inserted through the tube insertion holes formed in the headers 111' in an arrangement in which the tubes 120 are aligned. Next, before brazing the tube 120 to completely fix the position, the tube 120 protrudes from the header 111 ', that is, the tube protrusion amount d is appropriately regulated. Thereafter, the tube 120 and the header 111 'are firmly coupled through brazing, and after the gasket is seated on the header 111', the tank 112 'is coupled to the header 111'. Assembly of the slim radiator 100 'is completed.

Here, the radiator assembly process is arranged, and the tubes 120 and the header 111 'are first coupled and brazed, and then the header 111' and the tank 112 'are assembled. However, as shown in FIG. 1B, a step is formed not only in the outside but also in the inside of the tank 112 ′, and when the tube protrusion amount d becomes larger than the above, the tank 112 is increased. ') And the tube 120 are in contact with each other, that is, there is a risk of interference. As such, the tank 112 ′ and the tube 120 cause interference when assembling, as well as a problem of poor assembly, and the end of the tube 120 is damaged during the assembly process so that the flow of the heat exchange medium is not smooth. There are various problems such as damage to the components due to the stress concentration generated during assembly, or the leakage of the tank 112 ′ or the tube 120 due to damage.

Conventional radiators that are not slim radiators have been designed without the purpose of slimming and compacting, so that there is no structure between tube and tank in this assembly process. However, in the slim radiator 100 ′, the tube protrusion amount d is regulated when the tube 120 and the header 111 ′ are coupled in the process of designing the slimming and compacting purpose as the first priority. There is no way to do this, the problem of interference between the tube and tank in the assembly process occurs. Accordingly, there is an increasing demand for a header tank structure of a new slim radiator that achieves the purpose of slimming and compacting while preventing interference between tubes and tanks during assembly.

1. Korean Patent Publication No. 2008-0028524 (2008.04.01) 2. Korean Patent Publication No. 2009-0042365 (2009.04.30)

Accordingly, the present invention has been made to solve the problems of the prior art as described above, the object of the present invention is to achieve the purpose of slimming and compactness, while improving the assemblability by the interference between the tube and tank does not occur during assembly. It is to provide a radiator.

Radiator of the present invention for achieving the object as described above, is arranged between the plurality of tubes 120 and the tube 120 arranged in parallel at a predetermined interval side by side in the air blowing direction and between the tube 120 In the radiator 100 comprises a fin for increasing the heat transfer area with the air flowing through the pair of header tank 110 is coupled to both ends of the tube 120 and the heat exchange medium flows, The tank 110 includes a header 111 into which the tube 120 is inserted and coupled, and a tank 112 coupled with the header 111 to form a space through which a flow path is distributed, and the tank 112. When the side end side portion coupled to the header 111 in the foot (foot), the tank 112 is formed in a shape without a step inside the foot portion, a plurality of projections (long side length) outside the foot portion ( 112a) formed a protrusion Is formed in a shape that is, the header 111 has a seating portion (111a) is formed in a groove or through hole so that the protrusion 112a is caught at a position corresponding to the protrusion 112a is the seating portion (111a) The protrusion 112a is caught and fixed to the tank 112.

At this time, the header 111 is formed with a crimping portion 111b for supporting the protrusion 112a at the upper end of the seating portion 111a to be coupled to the tank 112 by crimping coupling. The crimping portion 111b is formed to protrude outwardly before the header 111 and the tank 112 are joined to guide the protrusion 112a to the seating portion 111a. It is characterized in that it is formed to support the upper end of the protrusion (112a) is pressed inward after the combination of the header 111 and the tank (112).

In addition, at this time, the tank 112 is formed to support the crimping portion 111b, the crimping support portion 112b protruding outwardly formed at positions between the positions corresponding to the crimping portion 111b is formed. It is done.

According to the present invention, there is a problem such as poor assembly or parts damage due to interference between the tube and the tank when assembling in the conventional slim radiator, but the header tank structure itself is improved to eliminate the possibility of interference between the tube and the tank at the source. There is a great effect to completely eliminate the problem of the slim radiator. That is, in the slim radiator of the present invention, there is an effect of minimizing the occurrence of assembly failure and the possibility of component damage during the assembly process.

In addition, according to the present invention, since the internal volume of the tank is increased as compared with the conventional slim radiator, there is also an effect that the pressure of the heat exchange medium flowing in the radiator, that is, the cooling water can be lowered. Accordingly, the heat exchange performance in the radiator can also be improved.

Of course, according to the present invention, the effect obtained by the existing slim radiator, that is, the effect of maximizing the space utilization in the engine room due to the slimming of the radiator can also be obtained completely. By the slimmer and compact design of the radiator, when the radiator installation space is fixed, the size of the radiator itself can be extended, and thus the heat exchange performance of the system can be further improved.

1 is a conventional slim radiator.
2 is a slim radiator of the present invention.
3 is a cross-sectional view of the slim radiator of the present invention.

Hereinafter, a slim radiator according to the present invention having the configuration as described above will be described in detail with reference to the accompanying drawings.

Figure 2 shows a slim radiator of the present invention, Figure 2 (A) shows a perspective view of the pre-engagement state, Figure 2 (B) shows a perspective view of the post-engagement state, respectively. 3 shows a cross-sectional view of the slim radiator of the present invention. The radiator structure of the present invention will be described in more detail with reference to the drawings.

The radiator 100 of the present invention has a heat transfer area with a plurality of tubes 120 arranged in parallel at regular intervals in parallel to the air blowing direction, and with air interposed between the tubes 120 and flowing between the tubes 120. It includes a pin (not shown) to increase the, and a pair of header tank 110 is coupled to both ends of the tube 120, the heat exchange medium flows. In addition, the header tank 110 includes a header 111 into which the tube 120 is inserted and coupled, and a tank 112 coupled to the header 111 to form a space through which a flow path is distributed. (In FIGS. 2 and 3, the pins are omitted for the sake of simplicity.) Here, the side end portion of the tank 112 that is coupled with the header 111 is referred to as a foot.

At this time, the radiator 100 of the present invention, the tank 112 is formed in a shape that does not have a step inside the foot portion, a plurality of protrusions 112a protrudingly formed along the longitudinal direction outside the foot portion and The header 111 has a seating portion 111a formed in a groove or a hole shape so that the protrusion 112a is caught at a position corresponding to the protrusion 112a, and thus the protrusion 111 is formed on the seating portion 111a. 112a) is caught and fixed, characterized in that coupled to the tank (112).

More detailed description is as follows. In the conventional slim radiator 100 ′ as shown in FIG. 1, the tank 112 ′ has a stepped portion in the foot. In addition, the header 111 'was engaged with the stepped portion formed in the foot of the tank 112'. However, since the step of the foot portion continued to the inner shape of the tank 112 ', the header 111' and the tube 120 are coupled to each other so that the tank 112 'is coupled to the brazed assembly. In this case, the end of the tube 120 is often in contact with the inner step of the foot of the tank 112 '. This is because there is no special means for regulating the amount of tube protrusion d of the tube 120 when the tube 120 and the header 111 'are coupled, so that the amount of tube protrusion d is excessive. In the enlarged portion, problems such as component damage or poor assembly occurred due to interference between the stepped portion inside the foot portion of the tank 112 'and the tube 120.

In the radiator 100 of the present invention, in order to eliminate such a problem, the inside of the foot portion of the tank 112 is formed in a shape without a step, that is to be formed in a smoothly extending form. Thus, as shown in Figure 3, no matter how protruding when the tube 120 is combined with the header 111, the possibility of interference with the tank 112 is completely zero, so that the tube in this assembly process The problem of interference between the 120 and the tank 112 is essentially eliminated.

As such, the inner step of the foot of the tank 112 disappears, so that the internal volume of the tank 112 becomes larger than in the prior art, and thus the pressure of the heat exchange medium (ie, the coolant in the radiator) passing through the tank 112 is increased. The effect of reducing this can be obtained. As described above, according to the pressure reducing effect, the flow of the heat exchange medium can be more smoothly obtained, and further, the effect of improving the heat exchange performance can be obtained.

In the radiator 100 structure of the present invention, by removing the step portion of the foot of the tank 112, the structure of the header tank 110 'of the conventional slim radiator 100' cannot be used as it is. The header 111 'is coupled to the stepped portion). Instead, in the present invention, a plurality of protrusions 112a protrude from the foot portion of the tank 112 along the longitudinal direction, as shown in FIGS. 2 and 3, and the header 111 has the protrusions ( A seating portion 111a formed in a groove or through hole is formed at the position corresponding to the protrusion 112a so that the protrusion 112a is caught and fixed to the seating portion 111a. ) Is adopted to combine with.

At this time, in order to be compatible with the conventional header shape, it is preferable that the coupling between the header 111 and the tank 112 is also a crimping coupling similarly to the conventional radiator. The coupling between the header 111 and the tank 112 will be described in more detail with reference to FIGS. 2 and 3. For reference, the left side of FIG. 3 (A) is a cross section A1-A1 'of FIG. 2 / the right side of FIG. 3 (A) is a cross section of A2-A2' of FIG. 2, and the left side of FIG. B1-B1 'cross section of FIG. 2 / right side of FIG. 3 (B) is B2-B2' cross section of FIG. 2, and the left view of FIG. 3 (C) is C1-C1 'cross section of FIG. 2 / FIG. Is a cross-section taken along the line C2-C2 'of FIG.

The protrusion 112a is inserted into the seating portion 111a of the header 111, and of course, a primary coupling is possible. At this time, the crimping portion 111b for supporting the protrusion 112a on the upper end of the seating portion 111a so that the coupling between the seating portion 111a and the protrusion 112a can be made more easily and firmly. To form.

At this time, the crimping portion 111b is formed to protrude outwards before the header 111 and the tank 112 are coupled to guide the protrusion 112a to the seating portion 111a. After the header 111 and the tank 112 are combined, the header 111 is pressed inward to support the upper end of the protrusion 112a. As described above, the assembling time of the header 111 and the tank 112 is after the coupling between the header 111 and the tube 120 is completed, and the tank 112 may naturally have the header 111. It will be arranged in a downward direction from above (ie from the outside). At this time, the header 111 is caught by the protrusion 112a of the tank 112, so that the tank 111 may not be properly seated in the assembled position. At this time, if the crimping portion (111b) is to be molded in the form protruding in the outward direction in advance, in the seating process of the tank 112 to sequentially go through the process of Fig. 2 or 3 (A)-(B) The protrusion 112a passes through the crimping portion 111b protruding outward. Therefore, the problem that the tank 112 is caught on the header 111 is eliminated at the source so that the protrusion 112a can be easily mounted on the seating portion 111a. As such, when the protrusion 112a is seated on the seating portion 111a (FIG. 2 (B) or FIG. 3 (B) state), the crimping portion (A) as shown in FIG. By pressing 111b) inward, the upper end of the protrusion 112a is more firmly supported.

In addition, it is preferable that a crimping support part 112b protruding outward is formed at a position between the positions corresponding to the crimping part 111b so as to support the crimping part 111b in the tank 112. . That is, the crimping support part 112b is formed between the crimping parts 111b. Accordingly, the coupling between the header 111 and the tank 112 is completed, and thus, FIG. 2 (C) or FIG. 3 (C). When the crimping portion (111b) is in a pressed state as in the), the crimping support (112b) supports the curved portion of the crimping portion (111b) so that the crimping coupling can be made more firm do.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It goes without saying that various modifications can be made.

100: slim radiator 110 of the invention header tank
111: header
111a: seating portion 111b: crimping portion
112: tank
112a: protrusion 112b: crimping support
120: tube

Claims (3)

A plurality of tubes 120 arranged in parallel at regular intervals in parallel to the air blowing direction, fins for increasing a heat transfer area with air interposed between the tubes 120 and flowing between the tubes 120, and the tubes In the radiator 100 is coupled to both ends of the 120 and comprises a pair of header tanks 110 through which the heat exchange medium flows,
The header tank 110 includes a header 111 into which the tube 120 is inserted and coupled thereto, and a tank 112 coupled to the header 111 to form a space through which a flow path is distributed. When the side end side portion coupled to the header 111 in 112 is referred to as a foot (foot),
The tank 112 is formed in a shape in which the inner side of the foot portion is not stepped, a plurality of protrusions 112a protruding in the longitudinal direction on the outer side of the foot portion,
The header 111 has a seating portion 111a which is formed in a groove or through hole so that the protrusion 112a is caught at a position corresponding to the protrusion 112a, and thus the protrusion 112a is formed on the seating portion 111a. Radiator is characterized in that coupled to the tank 112 by hanging.
The method of claim 2, wherein the header 111 is
Crimping portion (111b) for supporting the protrusion (112a) is formed on the top of the seating portion (111a) to be coupled by the tank (112) and crimping (crimping) coupling, the crimping portion (111b)
It is formed in a shape protruding outwards before the header 111 and the tank 112 are coupled to each other, and guides the protrusion 112a to the seating portion 111a at the time of coupling.
Radiator, characterized in that formed to support the upper end of the protrusion (112a) is pressed inward after the combination of the header (111) and the tank (112).
The method of claim 2, wherein the tank (112)
To support the crimping portion (111b), the radiator, characterized in that the crimping support portion (112b) protruding outwardly formed between the positions corresponding to the crimping portion (111b).

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