Terminal Block Assemblies for High Voltage Disconnect Switches
A high-voltage isolation switch, terminal block technology, applied in the direction of air switch parts, electrical switches, electrical components, etc., can solve problems such as poor heat dissipation effect, affecting the assembly of conductive strips, etc.
Active Publication Date: 2016-05-25
STATE GRID CORP OF CHINA +2
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Problems solved by technology
[0004] The purpose of the present invention is to provide a terminal block assembly for a high-voltage isolating switch, which is used to solve the problems that the penetrating structure inside the existing terminal block affects the assembly of the conductive strip and the heat dissipation effect is not good
Method used
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[0016] The present invention is used for the embodiment of the terminal block assembly of high-voltage isolating switch: as Figure 1-4 As shown, it includes a shell-shaped terminal block 2 with upper and lower openings. The upper opening of the terminal block 2 is axially inserted with a connecting terminal that rotates around the vertical axis of the terminal block. The connecting terminals are connected sequentially from top to bottom. There are four transition ribs, and the four transition ribs are evenly distributed along the circumferential direction of the conductive rod 5, and play the role of support and flow; on the corresponding outer peripheral surface of the lower end of the conductive rod 5 A conductive strip 1 is connected between the inner peripheral surfaces corresponding to the lower part of the terminal block. On the edge of the upper port of the terminal block 2, there is an annular boss 3 that is turned inward and fits in a gap with the conductive rod 5, a...
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The invention discloses a wire holder assembly for a high-voltage isolation switch. The wire holder assembly comprises a cover-shaped wire holder, the cover-shaped wire holder is provided with an upper-end opening and a lower-end opening, a wiring terminal is axially positioned and inserted into the upper-end opening of the wire holder, transition ribs are connected between a wiring board of the wiring terminal and a conductive rod, an annular boss is arranged at the upper-end edge of the wire holder, inwards folds and is used for the conductive rod to pass through, a fixed sleeve is detachably fixed and connected onto the annular boss, sleeves the conductive rod and is in rotation fit with the conductive rod, an upper limitation edge and a lower limitation edge are arranged on the outer peripheral surface of the conductive rod and are in respective propping fit with the two ends of the fixed sleeve to achieve axial limitation of the conductive rod, and the conductive rod is provided with a vent hole axially extending. Compared with the prior art, the wire holder assembly has the advantages that a pull rod passing through the wire holder is eliminated, enough assembly space is provided for the assembly of a conductive band, meanwhile, the vent hole is form in the axial direction of the conductive rod, hot air in the wire holder is convenient to flow out, and the heating problem in the wire holder is fundamentally solved.
Description
technical field [0001] The invention relates to a terminal block assembly for a high-voltage isolating switch. Background technique [0002] The terminal block of the traditional double-column rotary single-fracture structure isolating switch is relatively closed inside. When the current is passed for a long time, a large amount of heat generated by the internal contact resistance of the terminal block cannot be fully transmitted, resulting in excessive temperature rise inside the terminal block. , thereby affecting product performance. [0003] Chinese patent CN201383457Y discloses a terminal block structure for a high-voltage isolating switch, which includes a shell-shaped terminal block with openings at both ends of the upper and lower ends. The cover plate at the middle position is rotated and buckled on the top of the terminal block, and the lower surface of the cover plate is fixed with a conductive rod extending into the interior of the terminal block, between the ou...
Claims
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IPC IPC(8): H01H31/02H01H1/58H01H9/52
Inventor 马永旭王占杰
Owner STATE GRID CORP OF CHINA