JP2008309377A - Tank structure of radiator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tank structure of a radiator capable of reducing circulation resistance when a circulated medium of a radiator comes in and out to input and output ports and tanks, to improve cooling performance of the radiator. <P>SOLUTION: In this tank structure of the radiator comprising the pair of tanks 3, 4, and a plurality of tubes 5 stacked in state of being communicated with the corresponding tanks 3, 4 at both end portions, and connecting the input and output ports 11, 12 to the tanks 3, 4 in a state of roughly orthogonal to the longitudinal direction of the tubes 5, slope portions 14 extending in the longitudinal direction in a state of bulging from the tanks 3, 4 are disposed on connecting portions 13 of the pair of tanks 3, 4 and the input and output ports 11, 12. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a tank structure of a radiator.

2. Description of the Related Art Conventionally, a technology of a tank structure of a radiator including a pair of tanks each having an input / output port and a plurality of tubes stacked in a state where both ends communicate with corresponding tanks is known (see Patent Document 1). ).
JP 2007-71481 A

However, in the conventional invention, the input / output port of the radiator must be connected to the tank in a state of being substantially orthogonal to the tube depending on the vehicle mounting layout, so that the distribution resistance of the distribution medium of the radiator increases and flows smoothly. There was no problem.
In particular, the distribution medium of the radiator tends to be difficult to flow because it is a complete liquid as compared to a distribution medium (gas) such as an intercooler or a condenser.

  The present invention has been made to solve the above-described problems, and the object of the present invention is to reduce the flow resistance when the flow medium of the radiator enters and exits the input / output port and the tank. A radiator tank structure capable of improving cooling performance is provided.

  Another object of the present invention is to improve the thermal shock durability performance of the radiator.

  In the invention according to claim 1 of the present invention, it is provided with a pair of tanks and a plurality of tubes stacked in a state where both end portions thereof communicate with the corresponding tanks, and each tank is substantially orthogonal to the longitudinal direction of the tubes. In the radiator tank structure in which the input / output port is connected in a state where the input / output port is connected, the connecting portion between at least one of the pair of tanks and the input / output port is extended in the longitudinal direction in a state of bulging from the tank. A slope portion is provided.

  In the invention according to claim 1 of the present invention, it is provided with a pair of tanks and a plurality of tubes stacked in a state where both end portions thereof communicate with the corresponding tanks, and the longitudinal direction of the tubes is provided in each tank. In the radiator tank structure in which the input / output ports are connected in a state substantially orthogonal to the longitudinal direction in a state where the tank bulges from the tank at the connection portion between at least one of the pair of tanks and the input / output port. Since the extended slope portion is provided, the flow resistance when the flow medium of the radiator enters and exits the input / output port and the tank can be reduced, thereby improving the cooling performance of the radiator.

  Embodiments of the present invention will be described below with reference to the drawings.

Example 1 will be described below.
In the first embodiment, a case where a radiator is applied to the radiator will be described.
Further, the vehicle front-rear direction and the vehicle width direction will be described as the front-rear direction and the left-right direction.

  1 is a perspective view of a radiator according to a first embodiment of the present invention, FIG. 2 is a perspective view of a connection member according to the first embodiment, FIG. 3 is a front view thereof, FIG. 4 is a left side view thereof, and FIG. -S5 sectional drawing, FIG. 6, 7 is a figure which shows the communication state of the tank of this Example 1, a connection member, and an input-output port, and is a figure explaining an effect | action.

First, the overall configuration will be described.
As shown in FIG. 1, the radiator 1 of the first embodiment includes a core portion 2 and a pair of tanks 3 and 4 disposed on the left and right sides of the core portion 2, and is made of aluminum.

The core portion 2 is disposed between a plurality of flat tubular tubes 5 that are inserted into and fixed to tube plates (not shown) whose both ends are joined to the bottoms of the corresponding tanks 3 and 4 and the adjacent tubes 5. And corrugated fins 6.
The upper and lower ends of the core 2 are connected and reinforced by a pair of reinforcements 7 and 8 whose both ends are inserted and fixed to the bottoms of the corresponding tanks 3 and 4 respectively.

  The tanks 3 and 4 are formed in a substantially container shape opened to the core portion 2 side, and the peripheral edge of the opening is closed and sealed by the tube plate described above.

Input / output ports 11 and 12 are connected to the rear surfaces of the tanks 3 and 4 via connecting members 9 and 10.
Specifically, as shown in FIGS. 2 to 5, the connecting member 9 (10) of the first embodiment includes a connecting portion 13 projecting in a substantially cylindrical shape, and a curved portion R continuous with the connecting portion 13. And a slope portion 14 that bulges in a slanting manner in the direction perpendicular to the axis of the connecting portion 13.
Further, the tip portion 15 of the slope portion 14 has a tapered shape, whereby the slope portion 14 has a shape in which the bulging amount decreases as it goes to the tip portion 15.
Furthermore, a flange-shaped seat portion 16 is formed on the outer peripheral edge portion of the connecting portion 13 and the slope portion 14 of the connecting member 9 (10).

Then, as shown in FIG. 6, the seat 16 is joined to the opening 17 extending in the longitudinal direction of the tanks 3 and 4 with the connecting portion 13 of the connecting member 9 facing upward. The connecting member 9 and the tank 3 are fixed.
The connecting portion 13 of the connecting member 9 is fitted into the opening 17 by means such as press fitting.

Further, the connection member 9 and the input / output port 11 are fixed to each other by being joined to the connection portion 13 of the connection member 9 in a state where the input / output port 11 is inserted. 3 is connected in communication via a connecting member 9.
Further, as shown in FIG. 1, in the first embodiment, the leading end 15 of the slope portion 14 of the connecting member 9 is extended to a position reaching the substantially longitudinal center of the tank 3.

  On the other hand, the input / output port 12 is connected to the tank 4 at a position diagonally to the input / output port 11 of the tank 3 through the connection member 10 having the same shape as that of the connection member 9 described above. Similar to the member 9, the distal end portion 15 of the connecting member 10 is extended to a position reaching the approximate center in the longitudinal direction of the tank 4 (see FIG. 7).

  In addition, as a joining means when the connection member 9 and the tank 3 are both aluminum materials or other similar metals, brazing, welding, or the like is performed on the connection surface of the connection portion 13.

In the present invention described above, a clad layer (brazing sheet) is provided on at least one side of the joint portions of the respective constituent members described above, and these are preliminarily assembled and heat-treated in a heating furnace (not shown). Thus, it is fixed by brazing integrally.
The input / output port 11 is provided with a filler neck 19 to which a radiator cap 18 is attached.

  Therefore, in the radiator 1 according to the first embodiment, the input / output ports 11 and 12 of the tanks 3 and 4 are arranged on the diagonal of the radiator 1 and the slope portions 14 of the connecting members 9 and 10 correspond to the radiator 1. The tanks 3 and 4 are extended in the direction close to each other in the longitudinal direction of the tanks 3 and 4.

Next, the operation will be described.
In the radiator 1 configured as described above, the high-temperature flow medium flowing into the tank 3 from the input / output port 11 via the connection member 9 flows into the tank 4 via the tubes 5 of the core portion 2. After being cooled by exchanging heat with the vehicle running wind passing through the section 2 or the forced wind of the fan, it is discharged from the input / output port 12 via the connecting member 10 and functions as a heat exchanger.

  At this time, as shown in FIG. 6, the flow medium (shown by broken line arrows in the figure) from the input / output port 11 into the tank 3 is smoothly diffused in the longitudinal direction of the tank 3 by the slope portion 14 of the connecting member 9. Thus, the flow resistance when the flow medium of the radiator 1 flows into the tank 3 from the input / output port 11 can be reduced.

  On the other hand, as shown in FIG. 7, the flow medium (illustrated by broken line arrows in the figure) from the tank 4 to the input / output port 12 can be smoothly discharged by being guided to the input / output port 12 by the slope portion 14. The distribution resistance when one distribution medium is discharged from the tank 4 to the input / output port 12 can be reduced.

  In addition, since the input / output ports 11 and 12 of the tanks 3 and 4 are arranged diagonally of the radiator 1, and the slope portions 14 extend in directions close to each other in the longitudinal direction of the tanks 3 and 4, The flow resistance of each tank 3 and 4 can be further reduced as compared with the case where the connection member is provided only in one tank.

  Further, in the first embodiment, the distal end portions 15 of the connection members 9 and 10 are extended to substantially the center in the longitudinal direction of the corresponding tanks 3 and 4, respectively. The cooling performance of the radiator 1 can be improved.

  Further, since the input / output ports 11 and 12 and the tanks 3 and 4 are connected in communication via the connecting members 9 and 10 having the slope portion 14, the slope portion 14 is integrally formed with the input / output ports 11 and 12 or the tanks 3 and 4. Compared to the case, the connection angle with the input / output ports 11 and 12 and the bulging amount of the slope portion 14 can be easily changed regardless of the material and processing method of the input / output ports 11 and 12 or the tanks 3 and 4. It can be manufactured and is suitable.

Next, the effect will be described.
As described above, in the radiator tank structure according to the first embodiment, a pair of tanks 3 and 4 and a plurality of tubes stacked in a state where both ends communicate with the corresponding tanks 3 and 4 respectively. 5, and a tank structure of a radiator in which the input / output ports 11, 12 are connected to the tanks 3, 4 in a state substantially orthogonal to the longitudinal direction of the tube 5, the pair of tanks 3, 4 and the input / output ports 11, 12 12 is provided with a slope portion 14 extending in the longitudinal direction in a state of bulging from the tanks 3 and 4, the circulation medium of the radiator 1 connects the input / output ports 11 and 12 and the tanks 3 and 4. The flow resistance when entering and exiting can be reduced, and thereby the cooling performance of the radiator 1 can be improved.

  In addition, the input / output ports 11 and 12 of the tanks 3 and 4 are arranged diagonally to the radiator 1, and the slope portions 14 of the tanks 3 and 4 are respectively close to each other in the longitudinal direction of the corresponding tanks 3 and 4. Therefore, the flow resistance of the tanks 3 and 4 can be further reduced.

  Further, since the slope portions 14 of the connecting members 9 and 10 are respectively extended to the substantially center in the longitudinal direction of the corresponding tanks 3 and 4, the circulation amount of the circulation medium of each tube 5 can be made uniform, and the cooling performance of the radiator 1 can be improved. It can be improved.

  In addition, since the input / output ports 11 and 12 and the tanks 3 and 4 are connected to each other via the connecting members 9 and 10 having the slope portion 14, the connection angle with the input / output ports 11 and 12 and the bulging amount of the slope portion 14. Can be easily changed regardless of the material and processing method of the input / output ports 11 and 12 or the tanks 3 and 4.

Example 2 will be described below.
In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, the description thereof will be omitted, and only differences will be described in detail.
FIG. 8 is a perspective view of the radiator 1 according to the second embodiment of the present invention.

  As shown in FIG. 8, in the radiator tank structure according to the second embodiment, the side surfaces of the tanks 3 and 4 are separated from the vicinity of the tip portion 15 of the corresponding slope portion 14 (the extending direction of the slope portion 14). The difference from the first embodiment is that the capacity decreases with decreasing taper.

  Therefore, in addition to the operational effects of the first embodiment, when a high-temperature circulation medium flows in from the input / output port 11 in the state where the circulation medium having the same temperature as the outside air temperature exists in the radiator 1, each tank 3, The flow medium existing in the part away from the 4 input / output ports 11, 12 can be reduced and led smoothly to the input / output port 12, thereby quickly increasing the temperature of the flow medium in each tank 3, 4. Uniformity can prevent adverse effects on the radiator 1 due to thermal shock.

  In addition, the amount of bulging decreases as the slope portion 14 of each connecting member 9, 10 goes to the tip portion 15, so that the outside air temperature that is present in the portion separated from the input / output ports 11, 12 within the slope portion 14 is almost the same. The amount of the distribution medium at the same temperature can be reduced, which is preferable.

Although the present embodiment has been described above, the present invention is not limited to the above-described embodiment, and design changes and the like within a scope not departing from the gist of the present invention are included in the present invention.
For example, in the first embodiment, the tanks 3 and 4 and the input / output ports 11 and 12 are connected in communication via the connecting members 9 and 10, respectively, but may be applied to only one tank.

The material of the tank, the input / output port, and the connecting member is not limited to a metal such as aluminum, but may be a resin, and the fixing method thereof can be set as appropriate.
Further, the connecting member may be integrally formed with the same material as the input / output port or the tank.

  Further, the arrangement of the input / output ports 11 and 12, the length of the slope portion 15 and the like can be set as appropriate. For example, as shown in FIG. Alternatively, the connecting member 20 in which the slope portions 14 are respectively extended toward both longitudinal ends of the tanks 3 and 4 may be employed.

  Further, in the first embodiment, a so-called parallel flow type radiator in which a pair of tanks 3 and 4 are disposed on both the left and right sides of the core portion 2 has been described. Needless to say, the present invention can be applied to a flow-type radiator.

  Further, the effect can be reduced even in a structure in which the straight pipe members which are the input / output ports 11 and 12 have a wide circumferential diameter R on the tanks 3 and 4 side and are connected to the tanks 3 and 4.

  Further, when the members of the input / output ports 11 and 12 and the tanks 3 and 4 are different materials, for example, the members of the input / output ports 11 and 12 are resin materials, and the members of the tanks 3 and 4 are aluminum materials or other metals. In the case of a similar type, the input / output ports 11 and 12 and the tanks 3 and 4 are connected via a sealing material such as an O-ring, and the input and output ports 11 and 12 and the tanks 3 and 4 are connected by screws or the like. You may join.

It is a perspective view of the radiator of Example 1 of this invention. It is a perspective view of the connection member of the present Example 1. It is a front view of the connecting member of the first embodiment. It is a left view of the connection member of the present Example 1. It is sectional drawing in the S5-S5 line | wire of FIG. It is a figure which shows the communication state of the tank of this Example 1, a connection member, and an input-output port, and is a figure explaining an effect | action. It is a figure which shows the communication state of the tank of this Example 1, a connection member, and an input-output port, and is a figure explaining an effect | action. It is a perspective view of the radiator of Example 2 of this invention. It is a perspective view of the radiator of other examples.

Explanation of symbols

R Curved portion 1 Radiator 2 Core portion 3, 4 Tank 5 Tube 6 Fin 7, 8 Reinforce 9, 10 Connection member 11, 12 Input / output port 13 Connection portion 14 Slope portion 15 Tip portion 16 Seat portion 17 Opening portion 18 Radiator cap 19 Filler neck

Claims (5)

A pair of tanks and a plurality of tubes stacked in a state where both ends communicate with the corresponding tanks,
In the tank structure of the radiator in which an input / output port is connected to each tank in a state substantially orthogonal to the longitudinal direction of the tube,
A radiator tank structure comprising a slope portion extending in a longitudinal direction in a state of bulging from a tank at a connection portion between at least one of the pair of tanks and an input / output port. In the tank structure of the radiator according to claim 1,
Arrange the input / output ports of each tank on the diagonal of the radiator,
A tank structure of a radiator, wherein the slope portions of the tanks are extended in directions close to each other in the longitudinal direction of the corresponding tanks. In the tank structure of the radiator according to claim 1 or 2,
A radiator tank structure, wherein each of the slope portions is extended to a substantially center in a longitudinal direction of a corresponding tank. In the tank structure of the radiator according to any one of claims 1 to 3,
A shape in which the amount of bulging decreases as the slope of each tank goes in the extending direction,
A tank structure of a radiator, wherein each of the tanks has a shape in which a capacity decreases as it goes in an extending direction of the slope portion. In the tank structure of the radiator according to any one of claims 1 to 4,
A radiator tank structure, wherein the input / output port and the tank are connected in communication via a connecting member having the slope portion.

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