CN-122002731-A - Power voltage regulator

CN122002731ACN 122002731 ACN122002731 ACN 122002731ACN-122002731-A

Abstract

The invention relates to the technical field of electric power regulation and discloses an electric power voltage regulator which comprises a fixed shell, wherein a wiring through groove is formed in the front face of the fixed shell, a limiting plate, a sliding block, a first rotating shaft and a second rotating shaft are arranged on two sides of the fixed shell, a gear is arranged on the second rotating shaft, a movable shell, a third rotating shaft and a connecting rod which is rotatably arranged on the third rotating shaft are arranged on two sides of the movable shell, the connecting rod is rotatably arranged on the first rotating shaft, a toothed ring is arranged at the first end of the connecting rod, a wire pressing assembly comprises a rack, a sliding plate and a wire pressing plate, the rack is meshed with the toothed ring and the gear, a sliding groove matched with the sliding block is formed in the side face of the sliding plate, the sliding block is slidably arranged in the sliding groove, the voltage regulator body is arranged on the fixed shell, and a wire connecting end is arranged at the bottom of the voltage regulator body. The wire clamping device applies stable clamping force to the wire through the wire pressing plate, and avoids loosening of the wire connection and breakage of the copper wire.

Inventors

CHENG CHENG
HUANGFU WEIGANG
SHI MINGYUAN
WANG TENGFEI
LI SHENPENG

Assignees

国网浙江省电力有限公司桐庐县供电公司
国网浙江省电力有限公司杭州供电公司

Dates

Publication Date: 20260508
Application Date: 20260408

Claims (10)

1. A power voltage regulator, comprising: The fixing device comprises a fixing shell, wherein a wiring through groove is formed in the front face of the fixing shell, limiting plates, sliding blocks, a first rotating shaft and a second rotating shaft are arranged on two sides of the fixing shell, gears are arranged on the second rotating shaft, the second rotating shaft is located below the first rotating shaft, and the limiting plates extend in the vertical direction; the movable shell is provided with a third rotating shaft and a connecting rod rotatably arranged on the third rotating shaft at two sides, a first end of the connecting rod is rotatably arranged on the first rotating shaft, a toothed ring is arranged at the first end of the connecting rod, and the height of the third rotating shaft is lower than that of the first rotating shaft; The wire pressing assembly comprises a rack, a sliding plate and a wire pressing plate, wherein the rack is meshed with the toothed ring and the gear, the rack is clamped between the gear and the limiting plate, a sliding groove matched with the sliding block is formed in the side face of the sliding plate, the sliding block is arranged in the sliding groove in a sliding manner, a tooth groove meshed with the gear is formed in the top face of the sliding plate, the wire pressing plate is connected with one end, away from the fixed shell, of the sliding plate, and the wire pressing plate can slide to the notch of the wire connecting groove through the sliding groove; the voltage regulator main body is arranged on the front face of the fixed shell, the voltage regulator main body is positioned between the movable shell and the fixed shell, a wiring terminal is arranged at the bottom of the voltage regulator main body, and the wiring terminal is positioned above the wiring through groove.
2. The power voltage regulator according to claim 1, wherein the fixed case has a first ear plate on both sides, the rack has a second ear plate below the first ear plate, a first spring in a compressed state is disposed between the first ear plate and the second ear plate, a locking knob with a notch is disposed on the top or bottom of the movable case, and the fixed case has a locking groove adapted to the locking knob.
3. The power voltage regulator of claim 2, further comprising a mounting plate, wherein the mounting plate is provided with a hanging ring, wherein the fixing housing is provided with a hanging plate matched with the hanging ring, wherein the hanging plate is provided with a mounting through groove with a downward notch, and wherein the mounting plate is positioned in the mounting through groove.
4. A power voltage regulator according to claim 3, wherein a cross plate is provided on a side of the fixed case remote from the movable case, the hanging plate is provided on both ends of the cross plate, the cross plate is provided with a plugboard and a slot, the slot is communicated with the mounting through slot, the plugboard penetrates through the slot and is provided in the mounting through slot, and the plugboard is located below the hanging ring.
5. The power voltage regulator according to claim 4, wherein the rack is provided with a trapezoid block having a thickness gradually decreasing in a vertically upward direction, one end of the insertion plate is provided with a connection plate extending vertically upward, a second spring in a compressed state is provided between the connection plate and the transverse plate, and the connection plate abuts against an inclined surface of the trapezoid block.
6. The power voltage regulator according to claim 1, wherein the wire pressing plate is provided with a pressing plate, a threaded rod and a limit knob, the wire pressing plate is provided with a threaded hole matched with the threaded rod, the threaded rod is arranged on the wire pressing plate, two ends of the threaded rod are respectively connected with the pressing plate and the limit knob, and the pressing plate is located at a notch of the wiring through groove.
7. The power voltage regulator of claim 1, wherein a top portion of the rack is sandwiched between the ring gear and the limiting plate and a bottom portion of the rack is sandwiched between the gear and the limiting plate.
8. The power voltage regulator of claim 1, wherein the stationary housing is provided with a harness board, the harness board being positioned below the terminals, the number of wiring through slots being plural, the plurality of wiring through slots being disposed in a lateral arrangement on the harness board.
9. The power voltage regulator according to claim 1, wherein the movable case is further provided with a connecting rod, both ends of the connecting rod are hinged to the fixed case and the movable case, respectively, and the connecting rod is parallel to the connecting rod.
10. The power voltage regulator of claim 1, wherein the limiting plate is provided with a guide rail extending in a vertical direction, the sliding plate is provided with a sliding groove adapted to the guide rail, and the sliding plate is slidably disposed on the limiting plate.

Description

Power voltage regulator Technical Field The invention relates to the technical field of power regulation, in particular to a power voltage regulator. Background Along with the continuous expansion of the power distribution network scale and the continuous improvement of the requirements of terminal electric equipment on the power supply quality, a power system has higher requirements on voltage stability and regulation precision. Especially in the application scene that the power supply radius is great, line load fluctuation is frequent, the terminal voltage is liable to appear undulant even out of limit problem. The power electronic voltage regulator is widely applied to the terminal voltage compensation and stable control of a distribution line because of the advantages of high response speed, high regulation precision, strong adaptability and the like, and the operation reliability, the installation stability and the later maintenance convenience of the power electronic voltage regulator are directly related to the safe operation and the voltage regulation effect of a power grid. The voltage regulator main body of the existing power electronic voltage regulator is usually packaged inside an integral shell, the shell structure is designed in a screw fixing or integral sealing mode, when an internal control board, a wiring terminal or a functional module is required to be overhauled, maintained or replaced, the integral disassembly shell is often required to be even disconnected with a plurality of groups of wire connections, the operation steps are complex, the maintenance efficiency is low, the wiring loosening or the wire damage is easy to further aggravate in the repeated disassembly and assembly process, and the equipment maintenance difficulty and the secondary fault risk are increased. On the other hand, in the aspect of installation and wiring structures, the existing power electronic voltage regulator is fixed to an external electric wire by adopting a screw compression type wiring mode. The method generally relies on the screw to locally compress the end part of the tinned wire so as to realize electrical connection, but in the actual use process, the tinned wire is easy to break or peel off a tin layer on the surface of the tinned wire under the action of screw extrusion and self gravity of the terminal, so that a gap is formed between a conductor and the terminal, and meanwhile, due to the difference of thermal expansion coefficients between a copper conductor and the tin layer, the wiring part is easy to loose under the condition of long-term electrifying heating or environmental temperature change, so that the stability of electrical connection is influenced. The problem of wiring stability is particularly remarkable when the electric wire is pulled by external force, equipment vibrates or is subjected to long-term thermal cycle, and the copper wire inside the wire is easy to fatigue fracture and fall off and even directly loosens from the wiring terminal, so that poor contact and local overheating are caused, and the electric wire is possibly short-circuited or voltage regulator faults are possibly caused when the electric wire is severe, so that the safety and reliability of a power supply system are influenced. Therefore, how to ensure the structural strength and the protection performance of the power electronic voltage regulator, to realize that the shell is conveniently opened to facilitate the internal maintenance, and to synchronously improve the stability and the reliability of the wiring part has become a technical problem to be solved in the art. Disclosure of Invention The invention aims to solve the technical problems of loose wiring, easy breakage and inconvenient maintenance of a power voltage regulator. In order to solve the technical problems, the invention provides an electric power voltage regulator which comprises a fixed shell, wherein a wiring through groove is formed in the front surface of the fixed shell, a limiting plate, a sliding block, a first rotating shaft and a second rotating shaft are arranged on two sides of the fixed shell, gears are arranged on the second rotating shaft, the second rotating shaft is arranged below the first rotating shaft, the limiting plate extends in the vertical direction, a third rotating shaft and a connecting rod which is rotatably arranged on the third rotating shaft are arranged on two sides of the movable shell, the first end of the connecting rod is rotatably arranged on the first rotating shaft, a toothed ring is arranged at the first end of the connecting rod, the height of the third rotating shaft is lower than that of the first rotating shaft, the wire pressing assembly comprises a rack, a sliding plate and a wire pressing plate, the rack is meshed with the toothed ring and the gears, the rack is clamped between the gears and the limiting plate, the sliding plate is provided with a sliding groove which is matched with the sli