JPH0754944Y2 - Cooling device for flexible conductors - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION The present invention allows, for example , electric equipment or members on the power feeding side and the power receiving side to absorb thermal stress, vibration, impact repulsion, positional error, etc. between them or to move them relative to each other. Can be used when allowed and electrically connected
Flexible made by laminating a large number of flexible conductors, especially conductive thin metal plates
The present invention relates to a conductor cooling device.

[0002]

2. Description of the Related Art For example, when electric power is supplied to an electric device such as a spot welding machine , the above-mentioned conductor is used as a conductor for energization.
A function that allows such relative movement may be required. As a conductor that responds to such demands, it has generally been flexible
A conductor is used. As the flexible conductor, for example <br/> those covering a large number of rubber hose or the like conductor by a thin line, a conductor formed by a large number of sheets laminated conductive metal sheet that was formed into a U-shape or waveform etc. is there.

[0003] When a current flows in the variable Shiwashirube body as described above,
Large current, especially for flexible conductors used in spot welders, etc.
If the flow is Ru considerably since heating must be cooled Oh <br/>. Therefore, for example , those covered with the above rubber hoses, etc.
In this case, a cooling agent such as water is circulated in the coating to guide it.
You are directly cooling your body . In contrast, in the variable Shiwashirube body that <br/> laminating the thin metal plate can not be cooled directly, as described above. Therefore, conventionally, for example, actual Kaihei 3-
Ends provided at both ends of the flexible conductor as in Japanese Patent No. 16685
Cooling passages in the child block is provided, it was cooled indirectly flexible conductors by cooling the terminal block.

[0004]

[Problems to be solved by the device] However, as described above
Indirect cooling of the flexible conductor does not always provide sufficient cooling.
Not kill things, limit there was Tsu to the cooling effect. Also flexible
If it is possible to sufficiently cool the conductor, smaller even conductor cross-sectional area it is possible to a large current, this <br/> and can be configured also flexible conductor thus design a compact size However, if the cooling is insufficient, the flexible conductor
There are problems such as the inability to reduce the cross-sectional area.
It was The present invention is a flexible conductor formed by laminating thin metal plates as described above.
Without sacrificing the flexibility of the
Cooling that can cool flexible conductors directly and efficiently
The purpose is to provide a device.

[0005]

Was to achieve the above object, there is provided a means for solving]
The cooling device for a flexible conductor according to the present invention has the following structure.
It was done. That is, the liquid coolant inlet and outlet
In the cooling housing case having
A flexible conductor made by stacking multiple plates is placed and
Attach a pair of lead conductors connected to both ends of the flexible conductor to the above-mentioned housing.
Pull it out through the pull-out hole formed in the
At least one lead conductor is movably supported in the lead hole.
It is characterized by having it.

[0006]

[Function] As described above, the liquid coolant inlet and outlet are provided.
Conductive metal thin plate in the cooling housing case which has
A flexible conductor made by stacking a number of
Connect a pair of lead conductors connected to both ends of the conductor to the above-mentioned housing.
Pull it out through the pull-out hole formed in the
Liquid from the inlet and outlet into the housing case.
By flowing in and out the coolant of
Can be cooled directly and efficiently. Also possible
At least one of the lead conductors connected to both ends of the flexible conductor
Since it is movably supported in the drawer hole,
The flexibility of the body, especially the function that allows the relative movement described above, is impaired.
It becomes possible to prevent the jerk.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be specifically described below with reference to the drawings. 1 is a longitudinal sectional view showing an embodiment of the present invention, and FIG. 2 is a side sectional view taken along the line AA in FIG. In the figure, reference numeral 1 denotes a flexible conductor, which is formed by laminating a large number of thin strips of conductive metal such as copper, aluminum and the like.
Although the flexible conductor 1 is preliminarily formed in a U-shape, the shape is not limited to the U-shape and may be a corrugated shape. Further, terminal blocks (not shown) joined by butt welding are present at both ends thereof, and bolt through holes (not shown) are provided in the terminal blocks.

Reference numeral 2 is a fixed lead conductor, and 3 is a movable lead conductor, one of which is connected to a power source side device and the other to a power consuming device. Each tip is connected to the tip of a flexible conductor by a bolt 20. Reference numerals 6 and 7 are water passages for cooling the fixed lead conductor 2 and the movable lead conductor 3, respectively. The conductors are cooled by passing a coolant such as water therethrough. The outer side of the device of the present invention is constituted by a housing case 4 and a cover 5, and is molded by a material such as metal or plastic. The cover 5 is separated from the housing case 4 when the flexible conductor 1 inside is replaced. The cover 5 is provided with an extraction hole 8 for extracting the fixed extraction conductor 2, and the housing case 4 is provided with an extraction hole 9 for extracting the moving extraction conductor, which are sealed by gaskets 10 and 11.

Reference numeral 12 is a retainer for fixing the fixed lead conductor 2, and reference numeral 23 is a gasket for sealing the inside formed by the cover 5 and the housing case 4. The moving lead conductor 3 is supported by the bearing portion 14, and the bearing portion 14 is held in the housing case 4 by the retainer 13. The presence of the bearing portion 14 causes the moving lead conductor 3 to move arbitrarily in the direction of arrow B. Is possible.

The inside of the housing case 4 and the cover 5 is filled with cooling water 15.
Is circulated to the outside through an inlet 16 and a outlet 17 provided in the housing case 4. The cooling water 15 may be a coolant such as insulating oil. The pouring port 16 and the pouring port 17 can be provided at any positions of the housing case 4 and the cover 5.

The housing case 4 has a seat 18 for mounting the device of the present invention to the outside and a viewing window 19 for visually confirming the internal condition. Reference numeral 20 is a transparent organic glass or plastic, 21 is a holding metal fitting, and 22 is a gasket. In this embodiment, only the movable lead conductor 3 can be moved, but not limited to this, the fixed lead conductor 2 may be similarly movable.

FIG. 3 is a longitudinal sectional view of another embodiment of the present invention, and the reference numerals are the same as those shown in FIG. In this embodiment, the fixed lead conductor 2 and the movable lead conductor 3 are drawn in the same direction. Also in this embodiment, the fixed lead conductor 2 may be movable.

Since the cooling device of the present invention has the above-mentioned structure, it is possible to directly cool the flexible conductor with the coolant, and by improving the cooling efficiency, even the same flexible conductor is air-cooled. It is possible to energize about 5 to 10 times compared to the case of cooling by. Furthermore, since the flexible conductor can be designed to have a small cross-sectional area, it can be used even in a place having a short mounting span.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of the present invention.

FIG. 2 is a side sectional view of FIG.

FIG. 3 is a vertical sectional view showing another embodiment of the present invention.

[Explanation of symbols]

 1 Flexible conductor 2 Fixed lead conductor 3 Moving lead conductor 4 Housing case 5 Covers 8 and 9 Lead holes 15 Cooling water 16 Pouring port 17 Pouring port

Claims (1)

[Scope of utility model registration request] 1. A liquid coolant has an inlet and an outlet.
Many thin conductive metal plates are placed inside the cooling housing case.
A flexible conductor formed by stacking a number of layers is housed and arranged, and the flexible conductor
Connect a pair of lead conductors connected to both ends to the above housing cable.
Pull out to the outside from the pull-out hole formed in the
A cooling device for a flexible conductor, wherein one of the lead conductors is movably supported in the lead hole .