Rotor lead of optimized flexible structure of phase modifier

Abstract

The utility model discloses a rotor lead of an optimized flexible structure of a phase modifier, which comprises a bent flexible lead, an L-shaped rigid lead and an end portion flexible lead, the upward end portion of the L-shaped rigid lead is connected with a flexible curve, the transverse end portion of the L-shaped rigid lead is connected with the end portion flexible lead, and the transverse end portion of the L-shaped rigid lead is connected with the end portion flexible lead. The L-shaped rigid lead is connected with the bent flexible lead through a connecting screw, the L-shaped rigid lead is in lap joint with the end flexible lead, and soft copper coating layers are arranged at the lap joint of the L-shaped rigid lead and the end flexible lead and on the two sides of the L-shaped rigid lead and the end flexible lead. The flexibility of the flexible structure is improved through the middle L-shaped rigid lead, the bent flexible leads at the two ends and the end flexible leads, radial and axial deformation generated by centrifugal force and thermal expansion in a lead and coil connecting area can be absorbed, and deformation and tearing of the flexible leads are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of phase modifier rotor lead, especially to a rotor lead of phase modifier optimization flexible structure. BACKGROUND

[0002] The phase modifier is a kind of reactive compensation device, mainly used to improve the power factor of power system, stabilize grid voltage, improve the stability and reliability of power grid;Phase modifier provides reactive power to system when overexcitation operation;When underexcitation operation, it absorbs reactive power from system. It controls the size and nature of output or absorbed reactive power by adjusting the size and direction of excitation current.

[0003] During long-term operation, the flexible structure of rotor lead of phase modifier will be deformed greatly, and the preliminary judgment is that the coil and the retaining ring stretch the flexible structure radially outward during operation, and the coil and the retaining ring compress the flexible structure inward during assembly;And the flexible structure is stretched or compressed by a large stroke, which exceeds the bearing range of its own structure, and a large plastic deformation and tearing are generated under stress, the lead screw is only constrained at the bottom, and the stress state is closer to cantilever. The lead screw is only connected with the inner diameter of the shaft, and the vibration of the outer diameter position is not synchronous, so that a small displacement may be generated between the lead screw and the outer diameter of the shaft, leading to deformation and tearing of the flexible lead. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art and provides a rotor lead of phase modifier optimization flexible structure.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A rotor lead of phase modifier optimization flexible structure, comprising a curved flexible lead, an L-shaped rigid lead and an end flexible lead, the upward end of the L-shaped rigid lead is connected with the flexible curve, the transverse end of the L-shaped rigid lead is connected with the end flexible lead, the L-shaped rigid lead and the curved flexible lead are connected through connecting screws, the L-shaped rigid lead and the end flexible lead are overlapped, and a soft copper cladding layer is arranged at the overlapping place and both sides of the L-shaped rigid lead and the end flexible lead.

[0007] The curved flexible lead is composed of a transverse lead, an arc-shaped lead and a longitudinal lead, the transverse lead, the arc-shaped lead and the longitudinal lead are arranged in sequence, the longitudinal lead is arranged below the arc-shaped lead, and the end of the longitudinal lead is connected with the upward end of the L-shaped rigid lead through connecting screws.

[0008] The side edge of the upward end of the L-shaped rigid lead is provided with a terminal lug, the side surface of the terminal lug is a clamping table for terminal, and the transverse end of the L-shaped rigid lead is provided with an upward overlapping table A.

[0009] The end flexible lead wire is composed of a flexible terminal, an oblique lead wire and a lap joint station B, which are sequentially arranged, the flexible terminal is provided with a connecting hole, the lap joint station B is arranged downward, and the lap joint station B is arranged correspondingly to the lap joint station A.

[0010] The rotor lead wire is provided with a flexible structure at the connection position of the coil, which is composed of multiple layers of silver-containing copper belts (a total of 36 pieces), and is mainly used for isolating the centrifugal force of the top connecting block and the bottom turn coil, avoiding the axial position of the lead wire from bearing excessive tensile stress, and absorbing the radial and axial deformation of the connection area of the lead wire and the coil caused by centrifugal force and thermal expansion. The upper end of the curved flexible lead wire is fixed to the rotor through a lead wire screw; and the end flexible lead wire is connected to the excitation busbar through a conductive screw.

[0011] The rotor lead wire is provided with a flexible structure at the connection position of the coil, which is composed of multiple layers of silver-containing copper belts (a total of 36 pieces), and is mainly used for isolating the centrifugal force of the top connecting block and the bottom turn coil, avoiding the axial position of the lead wire from bearing excessive tensile stress, and absorbing the radial and axial deformation of the connection area of the lead wire and the coil caused by centrifugal force and thermal expansion. The upper end of the curved flexible lead wire is fixed to the rotor through a lead wire screw; and the end flexible lead wire is connected to the excitation busbar through a conductive screw. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 It is a structural diagram of the curved flexible lead wire of the utility model;

[0014] Figure 3 It is a structural diagram of the L-shaped rigid lead wire of the utility model;

[0015] Figure 4 It is a structural diagram of the end flexible lead wire of the utility model;

[0016] In the drawing: 1, curved flexible lead wire; 11, transverse lead wire; 12, arc-shaped lead wire; 13, longitudinal lead wire; 2, L-shaped rigid lead wire; 21, terminal lug; 22, clamping station; 23, lap joint station A; 3, end flexible lead wire; 31, flexible terminal; 32, connecting hole; 33, oblique lead wire; 34, lap joint station B; 4, soft copper cladding layer. DETAILED DESCRIPTION

[0017] Example 1

[0018] As Figures 1-4As shown, the utility model provides a kind of rotor lead of phase modifier optimization flexible structure, its structure is: including bending flexible lead 1, L type rigid lead 2 and end flexible lead 3, the upward end of L type rigid lead 2 is connected with flexible curve, the transverse end of L type rigid lead 2 is connected with end flexible lead 3, L type rigid lead 2 is connected between bending flexible lead 1 by connecting screw, L type rigid lead 2 and end flexible lead 3 are lapped, and the lapping place of L type rigid lead 2 and end flexible lead 3 and both sides are provided with soft copper cladding 4;

[0019] Bending flexible lead 1 is composed of transverse lead 11, arc-shaped lead 12 and longitudinal lead 13, and the transverse lead 11, the arc-shaped lead 12 and the longitudinal lead 13 are sequentially arranged, the longitudinal lead 13 is arranged below the arc-shaped lead 12, and the end of the longitudinal lead 13 is connected to the upward end of the L type rigid lead 2 by the connecting screw;

[0020] The upward end side of L type rigid lead 2 is provided with a terminal lug 21, the side of the terminal lug 21 is a clamping table 22 for wiring, and the transverse end of the L type rigid lead 2 is provided with an upward lapping table A 23;

[0021] End flexible lead 3 is composed of flexible terminal 31, oblique lead 33 and lapping table B 34, and the flexible terminal 31, the oblique lead 33 and the lapping table B 34 are sequentially arranged, the flexible terminal 31 is provided with a connecting hole 32, the lapping table B 34 is downwardly arranged, and the lapping table B 34 is correspondingly arranged with the lapping table A 23.

[0022] The main function of the rotor lead is to connect the rotor winding and the current collector, so that the phase modifier can smoothly transmit current during operation. The rotor lead rotates with the rotor during the operation of the phase modifier, so its selection and fixation are particularly important. The fixation of the lead needs to be particularly noted to be away from the conductor and to reduce the influence of centrifugal force on the lead, so as to ensure the stability and safety of the motor operation.

[0023] Specifically, the upper end of the bending flexible lead is fixed with the rotor by the lead screw during use, and the flexible terminal of the end flexible lead is connected with the excitation busbar by the conductive screw.

Claims

1. A rotor lead wire with an optimized flexible structure for a phase shifter, characterized by: It includes a curved flexible lead, an L-shaped rigid lead and an end flexible lead. The upward end of the L-shaped rigid lead is connected to the flexible curve, the lateral end of the L-shaped rigid lead is connected to the end flexible lead, the L-shaped rigid lead and the curved flexible lead are connected by connecting screws, the L-shaped rigid lead and the end flexible lead are overlapped, and a soft copper coating is provided at the overlap and both sides of the L-shaped rigid lead and the end flexible lead.

2. The rotor lead wire of the phase modulator with optimized flexible structure according to claim 1, characterized in that: The curved flexible lead consists of a transverse lead, an arc lead and a longitudinal lead, which are arranged in sequence. The longitudinal lead is arranged below the arc lead, and the end of the longitudinal lead is connected to the upward end of the L-shaped rigid lead through a connecting screw.

3. The rotor lead wire of the phase modulator with optimized flexible structure according to claim 1, characterized in that: The upward end side edge of the L-shaped rigid lead is provided with a wiring piece, the side of the wiring piece is a wiring clamping platform, and the lateral end of the L-shaped rigid lead is provided with an upward overlapping platform A.

4. The rotor lead wire of the phase modulator with optimized flexible structure according to claim 1, characterized in that: The end flexible lead consists of a flexible wiring terminal, an oblique lead and a bonding platform B. The flexible wiring terminal, the oblique lead and the bonding platform B are arranged in sequence. The flexible wiring terminal is provided with a connecting hole. The bonding platform B is arranged downward, and the bonding platform B is arranged corresponding to the bonding platform A.

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