Water and electricity connecting structure and method of welding-free water-cooled shock excitation coil

Abstract

The invention discloses a water and electricity connecting structure and method of a welding-free water-cooled shock excitation coil. The water and electricity connecting structure comprises a shock excitation coil connected with a moving coil framework, the shock excitation coil comprises two groups of coils correspondingly formed by winding two hollow conductors in parallel, wherein each group of coils is provided with a cooling medium inlet and a cooling medium outlet, the two groups of coils further correspondingly communicate with a cooling medium channel formed in the moving coil framework, and the two groups of coils are further arranged in series or in parallel by conductive springs arranged on the moving coil framework. Compared with the prior art, according to the water and electricity connecting structure, the form of the multiple coils in series is adopted by the shock excitation coil, the integration of water and electricity is achieved, the structure is reasonable, the performance is stable, cooling mediums can be multi-input and multi-output, mutual independence is achieved, the water flow resistance is reduced, the heat dissipation efficiency is improved, and the safety is further improved.

Description

technical field [0001] The invention relates to the field of vibrating tables, in particular to a water-electric connection structure and method for a welding-free water-cooled excitation coil. Background technique [0002] In the electric vibrating table structure, the moving coil is floating and supported in the magnetic field provided by the exciting winding as the vibrating part. In operation, the excitation winding is fed with DC to provide a constant DC magnetic field, and the moving coil is located in the magnetic field, wherein the driving coil can have a certain AC current, and the two interact to generate electromotive force to drive the moving coil to push the test piece to vibrate. As the design of electric vibrating tables becomes larger and larger, especially large electric vibrating tables with a thrust of more than several tons, it is necessary to cool the driving coil. [0003] refer to figure 1 As shown, the excitation coil of the traditional water-cooled...

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Problems solved by technology

[0003] refer to figure 1 As shown, the excitation coil of the traditional water-cooled vibrating table is usually wound in the form of a single wire, and the cooling adopts the method of two in and one out. This traditional winding method has the following problems; (1) Two in and one out of water cooling, the coil A water pipe must be welded in the middle position, the process is complicated, the winding is difficult, and the requirements for the welding technology and winding workers are high; (3) Due to the existence of the middle outlet pipe, in order to avoid interference, slots must be made on the center magnetic pole, which will affect the magnetic circuit.

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