Display screen explosion-proof operation device applied to explosion-proof high-low voltage frequency converter
A technology of operating device and display screen, applied in the fields of industrial automation, high and low voltage explosion-proof frequency conversion, can solve the problems of high development cost and low safety performance, and achieve the effects of low cost, high safety and simple structure
Pending Publication Date: 2020-10-30
SHANGHAI WEIKEN IND
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Problems solved by technology
[0006] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a display screen explosion-proof operating device applied to explosion-proof high and low voltage frequency converters, which is used to solve the problems of low safety performance and high development cost in the prior art
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[0017] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.
[0018] It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic ideas of the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the components in ...
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The invention provides a touch screen explosion-proof operation device applied to an explosion-proof high-low voltage frequency converter. The touch screen explosion-proof operation device comprises an internal control module, an external operation module and a display screen, wherein the external operation module and the display screen are respectively connected with the internal control module;the internal control module comprises a control circuit board and a plurality of microswitches; a USB interface of the display screen is electrically connected with a USB interface of the control circuit board; and the plurality of microswitches are electrically connected with the control circuit board respectively. The external operation module comprises a plurality of mechanical buttons, and themechanical buttons are correspondingly arranged on the microswitches to operate the display screen. The mechanical buttons control the corresponding microswitches, so that the control circuit board adjusts the movement of a mouse pointer in the display screen, and confirmation and return operations can be carried out. The display screen explosion-proof operation device applied to the explosion-proof high-low voltage frequency converter has the advantages of being simple in structure, low in cost and high in safety.
Description
technical field [0001] The invention relates to the fields of high and low voltage explosion-proof frequency conversion and industrial automation, in particular to a display screen explosion-proof operating device applied to explosion-proof high and low voltage frequency converters. Background technique [0002] Similar products include wireless intrinsically safe explosion-proof mouse for mining and intrinsically safe trackball mouse for mining. They are all improved on the basis of the existing mouse, and require national professional institutions to carry out intrinsically safe certification. [0003] The shape of the intrinsically safe trackball mouse for mining is equivalent to changing the commonly used mouse into a flat shape. It consists of a rotatable steel ball and two metal buttons. It needs to change the existing shell structure. The rotation of the steel ball drives the movement of the cursor, and the two metal buttons realize the functions of the left and righ...
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CPCH01H9/547
Inventor 许佳宝
Owner SHANGHAI WEIKEN IND