JPH0710430U - Supercharger intercooler - Google Patents

Abstract

(57) [Summary] [Purpose] The number of parts is small, the number of assembly steps in the manufacturing process is reduced, seal plates are eliminated, and dimensional accuracy is improved.
By reducing the number of brazing points, etc., we obtain an intercooler for turbochargers that reduces manufacturing costs. [Structure] An inlet tank portion a having an inlet pipe 11 on one side and an outlet tank portion b having an outlet pipe 12 on the other side are provided.
In a thin width intercooler in which a core portion c that performs cooling action is formed by a plurality of parallel tubes 14 in which 3 is installed and corrugated fins 15 interposed between each tube row, the outer member of the intercooler is An upper case 1a divided into upper and lower parts in the width direction of the thin width and a lower case 1b are separately formed, and an inner fin 13, a tube 14, a corrugated fin 15 and the like forming a core portion are formed between the two divided cases 1a and 1b. By interposing the upper case 1a and the lower case 1b together with the interposition therebetween, a finished product of the integrated intercooler is finished.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an intercooler for a supercharger.

[0002]

[Prior art]

 An intercooler is generally used in a supercharger installed in an automobile engine to cool intake air at the outlet of the supercharger. Two types of intercoolers conventionally used are known: a tube and fin type shown in FIG. 3 and a drone cup type shown in FIG.

The tube-and-fin type intercooler shown in FIG. 3 has a thin, flat shape as shown in the overall perspective view of FIG. 3A, and the components forming the intercooler 20 are As is clear from the exploded perspective view of B), an inlet tank portion 22 having an inlet pipe 21 attached to one side and an outlet tank portion 24 having an outlet pipe 23 attached to the other side are arranged. , 24, a plurality of parallel tubes 28 serving as cooling passages having inner fins 27 installed therein and corrugated fins 29 arranged between the rows of the tubes 28 are arranged to radiate heat. The core part is formed. Between the inlet tank section 22 and the tube 28 row, and between the tube 28 row and the other outlet tank section 24, there are inlet side and outlet side header plates 25a, 25b having a large number of ventilation slits. A pair of side plates 26a, 26b are arranged to face each other on both sides of the core portion. Further, a seal plate 32 for strengthening the seal is attached around the surface of the core portion, and stays 31 for attaching the intercooler 20 at a predetermined position are attached to the tank portions 22 and 24 on both sides.

When manufacturing the intercooler 20 including the above-described components, first, in the assembling process, the inlet pipe 21, the inlet tank portion 22, the outlet pipe 23, the outlet tank portion 24, the inner fin 27, the tube 28, and the corrugated fin. 29, the header plates 25a and 25b, the side plates 26a and 26b, and the seal plate 32 are assembled into a predetermined shape using an assembling jig, and then the assembled product is put into a brazing furnace to braze each member. The brazed parts are used to finish the product.

The drone cup type intercooler shown in FIG. 4 has the outer shape shown in the overall perspective view of FIG. 4A, and the components of the intercooler 40 are shown in the exploded perspective view of FIG. As shown, a plurality of intermediate plates 45 are provided between the plate 42 on one side where the inlet pipe 41 is mounted and the plate 44 on the other side where the outlet pipe 43 is mounted so as to face each other. The inner fins 46 and the corrugated fins 47 are interposed between the core fins to form a core portion, and a core portion is generally provided with a seal plate 48 for strengthening the seal. It In FIG. 4, reference numeral 49 indicates a stay for attaching the intercooler 40.

[0006]

[Problems to be solved by the device]

 By the way, among the above two types of intercoolers, the former tube-and-fin type shown in FIG. 3 is different in the shape of the tank portions 22 and 24 at the inlet and outlet and the mounting positions of the inlet pipe 21 and the outlet pipe 23. The advantage is that there is not much restriction on the installation layout due to the high degree of freedom, but on the other hand, the large number of components makes up a lot of man-hours and time during the assembly process. Even in the process of integrally brazing each member in the brazing furnace, the brazing efficiency is poor due to the large number of brazing points, and as a result, the manufacturing cost increases.

In the latter drone cup type intercooler shown in FIG. 4, the overlapping portion of the plate 45 forms a tube serving as a cooling passage, and the plates 42 and 44 on both sides serve as inlet and outlet tanks. In addition to the small number of types, it has an advantage that it is thin and lightweight as a whole, and that the rigidity of the tank part is also high, which is also advantageous for generating radiated sound. Is attached only at a right angle to the plates 42 and 44, and the stay 49 is also attached to the same mounting surface as the inlet pipe 41 and the outlet pipe 43. There was a problem that it could not be used if this problem could not be solved due to a large restriction.

In view of the problems of the above-mentioned conventional type intercooler, the present invention has a small number of component parts, reduces man-hours in the manufacturing process, eliminates seal plates, improves dimensional accuracy, and reduces brazing points. It is an object of the present invention to provide an intercooler that can be manufactured at low cost and has less restrictions on installation layout.

[0009]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the intercooler according to the present invention has an inlet tank part having an inlet pipe on one side and an outlet tank part having an outlet pipe on the other side, as in the conventional example. In the thin intercooler in which a plurality of parallel tubes containing inner fins and a corrugated fin interposed between each tube row form a core part for cooling, The member is divided into upper and lower half-type cases that are divided in the width direction of the thin width, and a tube and corrugated fins with inner fins that form the core part between the half-cases are inserted and the half case is interposed. It is characterized by forming an integrated intercooler by joining and joining.

[0010]

[Action]

 According to the above configuration, the upper and lower halves are the skeleton that makes up the outer shape of the intercooler, so the skeleton is solid and the core parts that are interposed between the halves of the halves are joined together. Since the assembly of (tube and corrugated fin) is also greatly simplified, the assembly process before the brazing process can be greatly simplified compared to the conventional one, and the assembly man-hours can be greatly reduced.

In addition, the half case that forms the outer shape of the intercooler has a smaller number of parts because it is an integral structure, and the manufacturing dimensional accuracy of the parts can be improved, and the seal plate that has been conventionally required is also available. Since it can be eliminated, the number of parts as a whole is reduced, the number of brazing points is reduced, and the brazing yield is improved.

As a result, according to the present invention, the number of component parts is small, the number of steps in the manufacturing process can be reduced, the seal plate can be eliminated, the dimensional accuracy can be improved, the brazing points can be reduced, and the manufacturing cost can be greatly reduced. it can.

[0013]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. 1A and 1B show a first embodiment of an intercooler according to the present invention. FIG. 1A is an overall perspective view and FIG. 1B is an exploded perspective view thereof. As shown in the overall perspective view (A), the intercooler body 1 has an inlet tank portion a to which an inlet pipe 11 is connected on one side and an outlet port to which an outlet pipe 12 is connected on the other side as seen in a conventional intercooler. A plurality of cooling tubes 14 each having an inner fin 13 therein are arranged in parallel so as to communicate between the two tank portions a 1 and b 2 and the tank portions b 1 and b 2 are arranged in parallel. Corrugated fins 15 are interposed between the rows to form a core portion c for cooling.

In the present invention, as is apparent from the exploded perspective view (B), the member forming the outer shape of the intercooler body 1 is divided into the upper case 1a and the upper case 1a divided into two parts in the width direction of the thin width. , And the lower case 1b. The upper case 1a and the lower case 1b are preferably formed by drawing a metal plate by press working, and the parts where the core part c is formed are squeezed inward toward each other so as to be vertically opposed to each other. Inner peripheral edges 16 and 17 facing each other are formed, and the tubes 14 are arranged on the inner peripheral edges 16 and 17 of the upper case 7 and the lower casing 8 on the sides that partition the tank portions a and b of the inlet and the outlet, respectively. The concave portions 16a and 17a are formed facing each other at the corresponding portions, and the portions where the corrugated fins 15 are arranged are formed on the protruding pieces 16b and 17b facing each other. Further, a concave portion 18 into which the inlet pipe 11 is fitted and a concave portion 19 into which the outlet pipe 12 is fitted are formed on the mating surfaces of the upper case 1a and the lower case 1b.

When manufacturing the intercooler, when the upper case 1 a and the lower case 1 b are fitted together in the assembly process, the inlet pipe 11 is provided in one recess 18 formed in the mating surface and the outlet pipe 11 is provided in the other recess 19. The pipe 12 is set, and the ends of the tubes 14 in which the inner fins 13 are fitted are fitted into the recesses 16a and 17a formed on the inner peripheral edges 16 and 17, respectively, and the projecting pieces are also opposed to each other. The intercooler main body 1 is assembled by interposing the corrugated fins 15 at positions 16b and 17b. The integrated product is finished by placing this assembly in a brazing furnace and brazing the brazing points of each member in the conventional manner.

In the case of the intercooler configured in this way, the constituent members have an upper case 1a and a lower case 1b as a skeleton, and an inlet pipe 11, an outlet pipe 12, a tube 14 in which inner fins 13 are installed, and a corrugated fin. Since the intercooler body 1 is assembled by assembling the parts 15, the number of component parts is greatly reduced and the number of brazing points is also smaller than the conventional one.

2A and 2B show a second embodiment of the intercooler according to the present invention. FIG. 2A is an overall perspective view, FIG. 2B is a sectional view taken along line XX of FIG. C) is a partial cross-sectional view taken along the line YY of FIG. The intercooler body 2 of this embodiment also has an inlet tank part a to which the inlet pipe 11 is connected on one side and an outlet tank part b to which the outlet pipe 12 is connected on the other side, as in the previous example. A cooling action is provided by a plurality of cooling tubes 14 in which inner fins 13 are internally provided so as to communicate between the tank portions a and b, and a corrugated fin 15 interposed between the rows of the tubes 14 facing each other. A core portion c to be performed is formed.

Also in the case of this embodiment, the member forming the outer shape of the intercooler body 2 is divided and molded into an upper case 1a and a lower case 1b which are vertically divided into two in the width direction of the thin width thereof. There is. In this embodiment, in this embodiment, the tube 14 in the core portion c is integrally press-molded as a part of the upper case 1a and the lower case 1b as shown in the sectional view of FIG. When joining the upper and lower upper and lower cases 1a and 1b in the assembly process, the inner fins 13 are fitted and arranged between the upper and lower tube pieces 14a and 14b which are formed separately in the vertical direction. The finished product of the integrated intercooler is finished by putting this assembly in a brazing furnace as in the previous example and brazing the brazing points of each member.

In the case of the present embodiment configured as described above, since the half tubes 14a and 14b are integrally molded with the upper case 1a and the lower case 1b, there is a disadvantage that the press molding die of the case becomes complicated. The upper case 1a and the lower case 1b are used as a skeleton, and the inlet pipe 11, the outlet pipe 12, the inner fins 13, and the corrugated fins 15 are assembled to the intercooler main body 2 to assemble the intercooler main body 2; The number of points can be further reduced compared to the previous example, and the advantage that the number of brazing points can be reduced is obtained.

[0020]

[Effect of device]

 As described above, according to the present invention, the upper and lower split halves form the skeleton that makes up the outer shape of the intercooler, so the skeleton is solid and the core is inserted between the halves. Since the intercooler is assembled by interposing the component parts (inner fin, tube, corrugated fin, etc.) of the part, the assembly process before the brazing process can be greatly simplified compared to the conventional one, and the number of assembly steps can be increased. Can be greatly reduced.

In addition, the half case that forms the outer shape of the intercooler has a smaller number of parts because it is an integral structure, and the manufacturing dimensional accuracy of the parts can be improved, and the seal plate that has been conventionally required is also available. Since it can be eliminated, the number of parts as a whole is reduced, the number of brazing points is reduced, and the brazing yield is improved.

As a result, according to the present invention, the number of component parts is small, the number of steps in the manufacturing process can be reduced, the seal plate can be eliminated, the dimensional accuracy can be improved, the number of brazing points can be reduced, and the manufacturing cost can be greatly reduced. The effect of being able to be obtained is obtained.

[Brief description of drawings]

FIG. 1A is an overall perspective view showing a first embodiment of an intercooler according to the present invention, and FIG. 1B is an exploded perspective view thereof.

2A is an overall perspective view showing a second embodiment of the intercooler according to the present invention, FIG. 2B is a sectional view taken along line XX in FIG. 2A, and FIG. It is a sectional view in a part along line YY of FIG.

3A and 3B show a tube-and-fin type intercooler of a conventional example, FIG. 3A is an overall perspective view, and FIG. 3B is an exploded perspective view thereof excluding a seal plate.

FIG. 4 shows an intercooler of a conventional drone cup type, in which (A) is an overall perspective view and (B) is an exploded perspective view.

[Explanation of symbols]

1 Intercooler body 1a Upper case 1b
Lower case a Inlet tank part b Outlet tank part c
Core part 11 Inlet pipe 12 Outlet pipe 13 Inner fin 14 Tube 15 Corrugated fin 16 Inner peripheral edge of upper case 17 Inner peripheral edge of lower case 16a, 17a Recess 16b, 17b Projecting piece 18 Recess 19 with which inlet pipe is fitted 19 Outlet pipe is fitted Recessed

Claims (1)

[Scope of utility model registration request] 1. A plurality of inlet fins having an inlet pipe on one side and an outlet tank portion having an outlet pipe on the other side, and a plurality of inner fins are provided so as to communicate between the two tank portions. In a thin width intercooler in which individual tubes are arranged in parallel and a corrugated fin is interposed between the tube rows to form a core portion, the outer member of the above intercooler is vertically aligned in the width direction of the thin width. The integral intercooler is formed by joining and joining the halved cases by interposing a tube containing inner fins and a corrugated fin that form a core part between the joined halves. An intercooler for a supercharger.