JP2001346361A - Cooling device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily attach a cooling device to the attaching position of a motor, etc., by a method wherein a bellows pipe is employed as a long pipe through which coolant is guided. SOLUTION: This cooling device has a long pipe provided on a cooled apparatus (20) such as a motor, etc., and a bellows pipe (11) is employed as the long pipe. The bellows pipe (11) can be attached easily to the outer surface of the cooling apparatus (20) by bending it arbitrarily.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a cooling device,
In particular, the present invention relates to a novel improvement for facilitating attachment to the outer periphery or inside of a motor or the like using a bellows tube.

[0002]

2. Description of the Related Art As a conventional cooling apparatus of this type, a first conventional example is a method in which a straight pipe is bent and cast into aluminum or the like to form water cooling. As a conventional example, a method of forming a water cooling hollow portion in a casting without using a pipe, as a third conventional example, a method of forming water cooling by drilling, and as a fourth conventional example, forming a water cooling by groove processing and an O-ring. A fifth conventional example is a method of forming water cooling by grooving and welding, and a sixth conventional example is a method of winding a pipe.

[0003]

Since the conventional cooling device is configured as described above, there are the following problems. That is, in the case of the first conventional example described above, it is extremely difficult not only to bend the pipe itself but also to bend, for example, to fit the outer periphery of the motor. Further, in the case of the second conventional example, it is difficult to form a fine shape because the water cooling hollow portion is formed by casting, and it is difficult to prepare each type for various types of motors and the like. Further, in the case of the third conventional example, since water cooling is formed by drilling, it is costly to drill and it is extremely difficult to prepare various types according to each motor and the like. Further, in the case of the fourth conventional example, since water cooling was formed by groove processing and an O-ring,
As described above, it is difficult to prepare many types, and it is difficult to secure sufficient quality due to the reliability of the O-ring. Also, in the case of the fifth conventional example, it is not easy to perform water welding by forming grooves and welding, and it is extremely difficult to prepare various types according to various shapes of the motor. Furthermore, in the case of the sixth conventional example, in order to wind a pipe around a motor or the like, the pipe must be bent in accordance with the outer shape of the motor or the like.
It was extremely difficult to bend accurately with the external shape.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and in particular, provides a cooling device which can be easily mounted on the outer periphery or inside of a motor or the like by using a bellows tube. The purpose is to do.

[0005]

According to the present invention, there is provided a cooling device for supplying a cooling medium into a longitudinal tube, wherein the longitudinal tube comprises a bellows tube. Is a configuration attached to the equipment to be cooled, the equipment to be cooled is a configuration made of a motor, and the bellows pipe is a configuration made of metal or resin.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a cooling device according to the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes a motor case having a substantially cylindrical overall shape, and a rotor is provided between a pair of first and second bearings 2 and 3 formed at both ends of the motor case 1. 4
Is provided rotatably. In addition,
The motor case 1 constitutes a motor 20, which is a device to be cooled.

A stator 7 having a stator winding 6 is provided on the inner wall of the motor case 1. An end face of the motor case 1 covers a rotation detector 8 connected to the rotating shaft 5. Cover 9 is provided.

In a concave portion 10 formed on the outer periphery of the motor case 1, a bellows tube 11 which is a bendable longitudinal tube made of metal such as stainless steel or resin is provided. It is connected to an inlet and outlet pipe 12 provided outside the motor case 1. In the bellows pipe 11, water or cooling water is circulated and supplied as a refrigerant. As the refrigerant, not only water but also other refrigerants such as a cooling gas can be used. Further, the bellows tube 11 can be mounted not only at the above-described mounting position but also at another cooling position. It goes without saying that the present invention is not limited to the motor but can be applied to other heat-generating devices.

[0009]

Since the cooling device according to the present invention is configured as described above, the following effects can be obtained. That is, since the bellows pipe is used as the cooling pipe, it can be bent and slightly stretched freely, can be freely mounted on the outer periphery and inside of a motor or the like, and can be easily mounted on any equipment to be cooled. . In addition, the bellows tube has a large heat radiation area and a large cooling effect.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a cooling device according to the present invention.

[Explanation of symbols]

 11 Long pipe (bellows pipe) 20 Equipment to be cooled (motor)

Claims (4)

[Claims] 1. A cooling device for supplying a cooling medium into a longitudinal pipe, wherein the longitudinal pipe comprises a bellows pipe (11). 2. A cooling device according to claim 1, wherein said longitudinal tube is attached to a device to be cooled. 3. The cooling device according to claim 2, wherein said equipment to be cooled comprises a motor. 4. The cooling device according to claim 1, wherein the bellows tube is made of metal or resin.