JPH0569331U - Aluminum radiator pipe tank - Google Patents

Abstract

(57) [Abstract] [Object] The present invention relates to a radiator pipe tank formed of an aluminum pipe material, which eliminates the need for a conventional drain device and also a patch jig for closing the pipe material used as the pipe tank. It is an object of the present invention to provide a pipe tank for an aluminum radiator that reduces temporary fixing due to In an aluminum radiator in which an aluminum pipe member 29 is integrally brazed with a radiator core 37 to form pipe tanks 27 at both ends of the radiator core 37, the pipe member 2 forming the pipe tank 27 is formed.
An opening / closing lid 33 for discharging cooling water is detachably attached to an opening of one end of the sheet 9 via a seal member 35.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an aluminum radiator, and more particularly to a radiator pipe tank made of aluminum pipe material.

[0002]

[Prior Art]

 Conventionally, in a radiator, a drain device for discharging cooling water in the radiator is provided in a radiator tank, as disclosed in Japanese Utility Model Publication No. 61-23614.

In this drain device, as shown in FIG. 3, a drain sheet 3 having a screw hole 1 in the center is fixed to a hole 7 provided in a wall surface of a lower tank 5, and the drain sheet 3 is screwed to the drain sheet 3. A drain cock 9 having a male screw portion 9a screwed into the hole 1 and a flange portion 9b abutting against the end surface 3a of the drain sheet 3 via the packing 11 is detachably screwed.

In recent years, as shown in FIG. 4 of Japanese Utility Model Application Laid-Open No. 57-31523, or an aluminum radiator which is used as a radiator tank, an aluminum pipe material 15 whose both end openings are closed by patches 13 is used. In this radiator, a pipe tank 15 is integrally brazed with a radiator core 17 of a pipe material 15 whose ends are closed by patches 13 using a jig to form a pipe tank 19.

Then, as in the conventional case, the drain sheet 21 is fixed to a hole formed in the side surface of the pipe tank 19 made of the pipe material 15, and the drain cock 9 is detachably screwed into the screw hole 23 of the drain sheet 21. Then, the drain device 25 is configured.

[0006]

[Problems to be solved by the device]

 However, in the conventional radiator shown in FIG. 4, since the pipe material 15 having a circular cross section is used as the radiator tank, it is difficult to process the drain sheet 21 as compared with the drain sheet 3 shown in FIG. 3, and its mounting is also troublesome. ..

On the other hand, as described above, in manufacturing a radiator, conventionally, the patch 13 is temporarily fixed to both ends of the pipe material 15 with a jig and is brazed integrally with the radiator core 17, but with the jig, The temporary fixing work of the patch 13 is troublesome, and improvement of workability has been desired.

The present invention has been devised in view of the above circumstances, and aims to eliminate the need for the conventional drain device and reduce the temporary fixing of the patch for closing the pipe material used as the pipe tank by the jig. The aim is to provide a pipe tank for aluminum radiators.

[0009]

[Means for Solving the Problems]

 In order to achieve such an object, the invention according to claim 1 is an aluminum radiator in which an aluminum pipe material is integrally brazed with a radiator core to form pipe tanks at both ends of the radiator core. An opening / closing lid for discharging cooling water is detachably attached to an opening of one end of the pipe material to be formed through a seal member.

According to the second aspect of the invention, the pipe member forming the pipe tank is provided with a threaded portion at one end opening thereof, and the opening / closing lid is detachably screwed to the threaded portion via a seal member. Is characterized by.

[0011]

[Action]

 According to the first aspect of the invention, when the cooling water is replaced, the cooling water in the radiator can be discharged to the outside by removing the opening / closing lid attached to the one end opening of the pipe material.

According to the second aspect of the invention, the cooling water in the radiator is discharged to the outside by removing the opening / closing lid screwed to the threaded portion of the pipe material.

[0013]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of a main part of a pipe tank of an aluminum radiator according to an embodiment of the present invention, in which 27 is a lower side pipe tank formed of a pipe material 29, and the pipe material 29 is a conventional pipe tank. Similarly, JIS 4343 brazing material is applied to the outer surface of the JIS 3003 aluminum core material, and JIS 7072 sacrificial material is applied to the inner peripheral surface on the cooling water side.

The outer periphery of the pipe member 29 on the side of the one-end opening 29a is threaded to form a threaded portion 31, and as shown in FIG. 2, the threaded portion 31 has a bottomed cylindrical opening / closing lid 33. Is removably screwed through the seal member 35. By removing the opening / closing lid 33 from the screw portion 31, the cooling water in the radiator can be discharged to the outside.

Although not shown, a radiator tank on the upper side of the radiator is also provided with a pipe tank made of the same pipe material as the pipe material 29 above the radiator core 37. The opening at both ends of the tank and the opening at the other end of the pipe tank 27 are closed by patches as in the conventional case.

In the aluminum radiator, the fins 39, the tubes 41, and the reinforcement 43 are used to temporarily assemble the radiator core 37, and the radiator core 37 is opened at both upper and lower ends as in the conventional case. By attaching the pipe material on the upper tank side, which is closed by a patch, and the pipe material 29, which is closed at one end by a patch, by temporarily fixing them with a jig and brazing them together in the furnace Manufactured.

Then, as shown in FIG. 1, the opening / closing lid 33 may be screwed to the threaded portion 31 of the pipe tank 27 via a seal member 35. Since the present embodiment is configured in this way, the high-temperature cooling water introduced from the engine to the upper side pipe tank passes through the radiator core 37 and undergoes heat exchange, whereby the lower side pipe tank 29. And then return to the engine.

When the cooling water deteriorates due to long-term use, if the opening / closing lid 33 is removed from the screw portion 31, the deteriorated cooling water can be quickly discharged from the one end opening 29a of the pipe tank 27. Become.

Therefore, according to the present embodiment, since it is not necessary to provide the drain device 25 as shown in FIG. 4 in the pipe tank 27, it is not necessary to process and attach the conventional drain sheet 21, and the jig is required. By reducing the number of temporary fixing points of the patch of the pipe material 29, the workability in manufacturing the radiator is improved as compared with the conventional work.

In the above embodiment, the threaded portion 31 is formed on the outer periphery of the pipe member 29 at the one end opening 29a side, and the opening / closing lid 33 is detachably attached to the threaded portion 31. A threaded portion may be formed on the inner periphery of the one end opening 29a side, and the opening / closing lid may be detachably screwed to the threaded portion via a seal member.

Further, in the above embodiment, the present invention is applied to a so-called downflow type aluminum radiator, but the present invention can also be applied to a sideflow type radiator. Thus, in such a case, a screw portion may be provided at the lower opening of either the left or right tank, and the opening / closing lid as described above may be detachably screwed to the screw portion via a seal member. ..

Furthermore, in the above embodiment, the opening / closing lid 33 is screwed to the threaded portion 31, but the opening / closing lid can be detachably attached to the one end opening portion of the pipe tank, and the watertightness is still maintained. The present invention is not limited to the above embodiment as long as it can close the one end opening of the pipe tank.

[0023]

[Effect of the device]

 As described above, according to the invention described in each claim, since it is not necessary to provide the drain device having the conventional structure in the pipe tank using the pipe material, it is not necessary to process and install the drain sheet. Since the number of temporary fixing points with the jigs of the patch that closes both ends of the pipe tank can be reduced, the workability of the aluminum radiator is improved compared to the conventional one.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part of an aluminum radiator pipe tank according to an embodiment of the present invention.

FIG. 2 is a sectional view of a main part of a pipe tank.

FIG. 3 is a sectional view of a conventional drain device.

FIG. 4 is a perspective view of a conventional drain device in an aluminum radiator equipped with a pipe tank.

[Explanation of symbols]

 27 pipe tank 29 pipe material 31 screw part 33 opening / closing lid 35 sealing member 37 radiator core

Claims (2)

[Scope of utility model registration request] 1. An aluminum radiator in which a pipe material (29) made of aluminum is integrally brazed to a radiator core (37) to form pipe tanks (27) at both ends of the radiator core (37). (27)
One end opening (29) of the pipe material (29) forming the
A pipe tank of an aluminum radiator, wherein an opening / closing lid (33) for discharging cooling water is detachably attached to a) via a seal member (35). 2. A threaded portion (31) is provided at one end opening (29a) of a pipe material (29) forming a pipe tank (27), and the threaded portion (31) is provided with a seal member (35) in between. The pipe tank for an aluminum radiator according to claim 1, wherein the opening / closing lid (33) is detachably screwed.