High-current switching device
A switching device and high-current technology, applied in the direction of electrode characteristics, resistance electrode holder, welding/cutting medium/material, etc., can solve the problem of high-current switching device explosion, large current transmission effective area is not very large, and affects high-current switching Device switching accuracy and other issues
Inactive Publication Date: 2014-02-05
上海梅达焊接设备有限公司
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Problems solved by technology
The main problem of the current high-current switching device is: due to the effective contact area between the shuttle electrode and the first input electrode and the first output electrode, or between the second input electrode and the second output electrode, that is, the effective transmission of large current The area is not very large, which affects the switching accuracy of the high-current switching device, and even causes the explosion of the high-current switching device in severe cases
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[0024] see Figure 1 to Figure 5 In order to better understand the technical solution of the present invention, the inventors of the present invention will describe in detail below through specific embodiments in conjunction with the accompanying drawings:
[0025] see Figure 1 to Figure 5 , a high-current switching device of the present invention includes a first input electrode 1 , a first output electrode 2 , a second input electrode 3 , a second output electrode 4 , a shuttle electrode 5 and a cylinder 6 , and a housing 9 . Among them, the first input electrode 1 , the first output electrode 2 , the second input electrode 3 , the second output electrode 4 and the shuttle electrode 5 are all placed in the housing 9 .
[0026] The shuttle electrode 5 is a shuttle electrode, including a first conical surface 51 and a second conical surface 52 , and the first end of the shuttle electrode 5 , that is, the end close to the cylinder 6 is connected to the cylinder 6 .
[0027] ...
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The invention discloses a high-current switching device, and belongs to the field of electric resistance welding. The high-current switching device comprises a first input electrode, a first output electrode, a second input electrode, a second output electrode, a shuttling electrode and a cylinder, wherein the shuttling electrode refers to a shuttle electrode, and comprises a first conical curved surface and a second conical curved surface; the first end part of the shuttling electrode is connected with the cylinder; the first input electrode and the first output electrode are sleeved on the outer side of the first conical curved surface; the first input electrode and the first output electrode are spliced into a first inner conical curved surface which can be coincided with the first conical curved surface; the second input electrode and the second output electrode are sleeved on the outer side of the second conical curved surface; the second input electrode and the second output electrode are spliced into a second inner conical curved surface which can be coincided with the second conical curved surface; the first input electrode and the second input electrode as well as the first output electrode and the second output electrode are insulated from each other. The high-current switching device has the technical effect that the switching accuracy of the high-current switching device is ensured effectively.
Description
technical field [0001] The invention relates to a large current switching device in the field of resistance welding. Background technique [0002] Resistance welding is a way of joining metals. During resistance welding, the weldment is welded by a large current, which causes the contact part to heat up and produce a nugget to cool and then fuse. In order to obtain enough heat to form a nugget in a short welding time, a very large current must flow to the weldment through the welding electrode. Welding currents are often as high as tens of thousands of amperes, currently seventy thousand amperes are common. Due to the particularity of the welding workpieces, the magnets sandwiched between the upper and lower welding workpieces must be clamped once and welded to the upper half and the lower half respectively. The high-current switching device also emerges at the historic moment. The high-current switching device is like a toggle switch, toggle the shuttle electrode, the sh...
Claims
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IPC IPC(8): B23K11/30
CPCB23K11/30B23K11/31B23K35/0205
Inventor 鲁民强王雪华
Owner 上海梅达焊接设备有限公司