Three-station isolation switch and position detection apparatus thereof, and detection shaft
A detection device and switch position technology, which is applied to electrical switches, air switch parts, electrical components, etc., can solve the problems of discontinuous detection signals of the detection device and inaccurate position detection results of the three-position isolation switch, so as to improve the The effect of reliability
Active Publication Date: 2017-05-10
STATE GRID CORP OF CHINA +3
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[0004] The working principles of the above two detection devices are: the three-position isolating switch drives the transmission shaft of the detection device to rotate. At this time, the trigger structures with different installation angles on the rotating shaft will trigger the corresponding when the rotating shaft rotates to the corresponding angle. The trigger switch of the trigger switch can identify the position of the three-position isolating switch through the signal of the trigger switch. The trigger switch is not triggered at the moment of the adjacent trigger structure. At this time, the trigger signal produces intermittent points, which makes the detection signal of the detection device discontinuous, which causes the problem of inaccurate detection results of the position of the three-position isolating switch.
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[0029] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0030] The specific embodiment of the three-position isolating switch of the present invention, as shown in Figures 1 to 3, the three-position isolating switch includes a position detection device connected to its transmission shaft, and the position detection device 1 includes a bracket 1 and a rotatable assembly on the bracket The detection shaft 2 on 1, the three-position isolating switch position detection device has the working detection position and the middle detection position set at the axial interval of the pressure detection shaft 2, and the bracket 1 is respectively set at the positions corresponding to the working detection position and the middle detection position. There is a working position switch unit and a middle position trigger switch. The working position switch unit includes a closing position trigger switch 4, an opening position t...
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The invention relates to the field of electric appliance switch equipment and especially relates to a three-station isolation switch and a position detection apparatus thereof, and a detection shaft. The three-station isolation switch is connected with a switch position detection apparatus, a detection shaft of the switch position detection apparatus is provided with work position trigger structures and intermediate position trigger structures, each intermediate position trigger structure comprises a first trigger segment, a second trigger segment and a third trigger segment which are sequentially distributed in the direction of a circumference coaxial with the detection shaft, when the switch performs reciprocating motion between two work positions and an intermediate position, the first trigger segments and the third trigger segments of the intermediate position trigger structures enable the switch to have detection signals when the switch is at any positions, it is ensured that the position detection apparatus can output continuous detection signals, and the reliability of the detection apparatus is improved.
Description
technical field [0001] The invention relates to the field of electrical switchgear, in particular to a three-position isolating switch, a position detection device and a detection shaft thereof. Background technique [0002] The three-position isolating switch integrates the functions of the grounding switch and the isolating switch into one switch mechanism, forming a switch mechanism with three working positions: closing position, opening position and grounding position. The three-position isolating switch also has two The intermediate position is specifically the closing intermediate position between the closing position and the opening position and the grounding intermediate position between the opening position and the grounding position. In the actual use process, when the three-position isolating switch is overhauled, it is impossible to judge the position of the three-position isolating switch, so there is a great potential safety hazard. [0003] In the prior art, ...
Claims
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IPC IPC(8): H01H31/02H01H9/16
CPCH01H9/16H01H31/02
Inventor 王帮田曹善军赵成张杰张艳晓王金雷张鹏李燕燕纪江辉姜亚军赵玉芝郅娇娇王金芳王鹏王小丽杨思亮
Owner STATE GRID CORP OF CHINA
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