JPH0210657B2 - - Google Patents

Description

[Detailed description of the invention] TECHNICAL FIELD This invention relates to high voltage tanks.

FIG. 1 shows the circuit configuration of an electron beam welding machine, and FIG. 2 shows a conventional high voltage tank that houses the components. In Fig. 1, 1 is an accelerating power supply whose power supply voltage is connected to a step-up transformer 2.
After being boosted, the voltage is rectified and smoothed through a high voltage rectifier 3 and a high voltage smoother 4, and is supplied to an electron gun 9 as an accelerating voltage V _A. 5 is an auxiliary power supply, the power supply voltage of which is inputted to rectifiers 7A, 7B, and 7C via an isolation transformer 6;
The outputs of A, 7B and 7C are smoothed by smoothing devices 8A and 8, respectively.
Through B and 8C, the filament voltage V _F , impulse voltage V _B , and bias voltage V _C are superimposed on the accelerating voltage V _A and applied to the electron gun 9. 10 is an electron beam, 11 is a welded object, and 12 is a base frame.

13 is a high voltage tank, and the power supply connection port 13
a, step-up transformer 2, which has an electron gun connection port 13b;
A DC high voltage power supply device consisting of a rectifier 3 and a smoothing device 4, and a DC power supply device consisting of an isolation transformer 6, rectifiers 7A to 7C, and smoothing devices 8A to 8C are housed. As shown, a rectangular or rectangular parallelepiped is used, and the step-up transformer 2 and isolation transformer 6 are installed on the two tank walls as shown, so in order to maintain sufficient insulation distance from the high voltage part. It is necessary to increase the distance between tank walls,
As a result, not only the weight but also the volume of the high voltage tank 13 increases, so the high voltage tank 13 and the electron gun 9 are arranged in a plane and connected by a high voltage cable 14 as shown in FIG. There was a problem that the required installation area became large.

This invention was made in view of the above-mentioned conventional problems, and a high voltage tank housing a high voltage device having two transformers at its input section is formed into a horizontally long cylinder shape, and the above transformers are connected to both ends of the high voltage tank. By arranging each of The purpose is to provide.

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

In FIG. 3, reference numeral 15 denotes a high voltage tank of an electron beam welding machine, which has a cylindrical shape, with a step-up transformer 2 mounted on one end wall 15A, and an isolation transformer 6 mounted on the other end wall 15B. and a rectifier 3, between the step-up transformer 2 and the isolation transformer 6
7A to 7C and smoothing devices 4 and 8A to 8C are housed therein. The step-up transformer 2 and the isolation transformer 6 are arranged with the yokes 21 and 61 of the iron cores 20 and 60 facing the tank wall side of the high voltage tank 15, as shown in FIGS. 3 and 4, respectively. This is iron core 20,6
0 and the tank wall surface are at the same potential and can be placed close to each other.As a result, the inside of the high voltage tank 15 is highly utilized, and the high voltage tank 1
5, it is possible to provide a sufficient insulation interval between the high voltage part of the equipment/equipment to be housed and the wall surface of the tank.

This high voltage tank 15 is elongated and has a step-up transformer 2 and an isolation transformer 6 housed at each end, so the center of gravity is closer to the center. By placing the electron beam welding machine on top of the machine and having a vertical structure, the required installation area can be greatly reduced compared to the conventional one.

Although the above embodiment describes an electron beam welding machine, the present invention can be applied to any high-voltage tank that houses a high-voltage device having two transformers in its input section, and similar effects can be obtained. can get.

As described above, according to the present invention, the tube-shaped
By arranging the two transformers of the input section of the high voltage equipment to be housed at both ends,
The internal space can be used effectively to provide sufficient insulation spacing for the high-voltage parts of high-voltage equipment, and by eliminating excess space, it can be compactly packed horizontally, and the horizontally long cylindrical shape makes it possible to Since it is not bulky, it can be mounted on electrical equipment such as electron beam welding machines, and has the advantage that the required installation area of the entire device including electrical equipment can be significantly reduced compared to conventional methods. be.

[Brief explanation of drawings]

FIG. 1 is a circuit diagram of an electron beam welding machine, FIG. 2 is a perspective view of a conventional high voltage tank used in an electron beam welding machine, and FIG. 3 is a sectional view of an embodiment of a high voltage dunk according to the present invention. Figure 4 shows A- of the above embodiment.
A view from A, FIG. 5 is a front view of a conventional electron beam welding machine, and FIG. 6 is a front view of an electron beam welding machine embodying the present invention. In the figure, 2...step-up transformer, 3,7A~7
C... Rectifier, 4,8A~8C... Smoothing device,
5...Isolation transformer, 15...High voltage tank, 2
0,60...iron core. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] 1 A high-voltage tank that houses a high-voltage device with two transformers in its input section, which has a horizontally long cylindrical shape and houses the above two transformers at both ends, and each transformer has a high-voltage On the end wall of the tank,
A high-voltage tank, characterized in that the tank is housed with the iron core portion having no windings facing, and other elements of the high-voltage device are housed in the space between both transformers.