Search

CN-121983818-A - Offshore wind power switchgear

CN121983818ACN 121983818 ACN121983818 ACN 121983818ACN-121983818-A

Abstract

The invention relates to offshore wind power switchgear, which belongs to the technical field of switchgear and comprises an inlet box, a middle shell and an outlet box, wherein the inlet box and the outlet box are respectively arranged at two sides of the middle shell, an inlet protection cylinder is connected to the upper end of the inlet box, a switching cylinder is arranged in the middle shell, a first connector is arranged in the inlet protection cylinder, a second connector is arranged in the switching cylinder, the second connector and the first connector can guide current to transmit when being spliced, the opening part of the inlet protection cylinder facing the switching cylinder is a first butt joint part, the opening part of the switching cylinder facing the inlet protection cylinder is a second butt joint part, a connecting port is preset on the second butt joint part, and the connecting port and the first butt joint part are connected in a jogging mode. Through the cooperation of positioning mechanism and locating hole, restriction piece and many slope structures, realized the multiple spot locking after the butt joint and prevent shaking the effect, effectively avoid the connection pine of marine strong wind, wave vibration lead to and the interruption of current transmission.

Inventors

  • XIE LIBIAO
  • GUO ZHEN
  • HU QI
  • LU JIAMIN

Assignees

  • 南京开关厂股份有限公司

Dates

Publication Date
20260505
Application Date
20260408

Claims (10)

  1. 1. The offshore wind power switchgear is characterized by comprising an inlet box (100), a middle shell (101) and an outlet box (102); The inlet box (100) and the outlet box (102) are respectively arranged at two side positions of the middle shell (101), and an electric control box (103) is arranged at the side position of the middle shell (101); An inlet protection cylinder (200) is connected to the upper end position of the inlet box (100), an adapter cylinder (300) is arranged in the middle shell (101), a first connector (201) is arranged in the inlet protection cylinder (200), and a second connector (301) is arranged in the adapter cylinder (300); The opening part of the entering protection cylinder (200) facing the switching cylinder (300) is a first butt joint part (202), the opening part of the switching cylinder (300) facing the entering protection cylinder (200) is a second butt joint part (302), a connecting port (303) is preset on the second butt joint part (302), and the connecting port (303) is in embedded connection with the first butt joint part (202); A positioning mechanism (400) for limiting the state of the butt joint part II (302) is arranged on the butt joint part I (202); A conducting component (800) is arranged in the middle shell (101), and the conducting component (800) is connected with the switching cylinder (300).
  2. 2. The offshore wind power switchgear according to claim 1, wherein the entry protection cylinder (200) is provided with an annular cavity (203), the positioning mechanism (400) is located in the annular cavity (203), the inner edge of the annular cavity (203) is provided with guide holes (204), the guide holes (204) are communicated with the inner side of the first butt joint part (202), the outline shape of the guide holes (204) is arc-shaped, and a plurality of guide holes (204) are arranged.
  3. 3. The offshore wind power switchgear according to claim 1, wherein the positioning mechanism (400) comprises a fixed ring (401), clamping beads (402), a movable ring (403) and a first return spring (404), the fixed ring (401) is positioned at the inner edge of the annular cavity (203), the movable ring (403) is transversely arranged in the annular cavity (203) in a moving mode, the clamping beads (402) are arranged in a plurality, the clamping beads (402) are arranged in the guide holes (204), and the first return spring (404) is arranged between the movable ring (403) and the inner edge of the annular cavity (203).
  4. 4. The offshore wind power switchgear according to claim 1, wherein a positioning opening (304) is formed in the inner edge of the connecting opening (303), a first slope (305) is formed on one side of the positioning opening (304), and a second slope (306) is formed in the opening of the connecting opening (303).
  5. 5. The offshore wind power switchgear according to claim 1, wherein the movable ring I (500) is rotatably moved on the outer contour of the butt joint part I (202), limiting blocks (501) are distributed on the inner side of the movable ring I (500) at equal included angles, and a slope III (501 a) is pre-arranged on one side of the limiting blocks (501) facing the movable ring (403).
  6. 6. The offshore wind power switchgear according to claim 1, wherein one end of the second butt joint part (302) is rotatably connected with a second movable ring (600), the second movable ring (600) is positioned at the periphery of the second butt joint part (302), and a plurality of square channels (601) are pre-arranged at the inner side of the opening of the second movable ring (600).
  7. 7. The offshore wind power switchgear according to claim 5, wherein a square block (502) is provided on the outer circumference of the movable ring I (500), the square block (502) slides in the square channel (601), and a wedge block I (503) is provided on one side of the square block (502).
  8. 8. The offshore wind power switchgear according to claim 6, wherein the square channel (601) has a receiving groove (602) formed at an inner edge thereof, and the receiving groove (602) is connected to the wedge block I (503) in a fitting manner.
  9. 9. The offshore wind power switchgear according to claim 6, wherein the movable ring II (600) is provided with a wedge block II (603) in a telescopic motion, opposite surfaces of the wedge block II (603) and the wedge block I (503) are inclined, a rubber ring plate (604) is arranged on the inner side of the movable ring II (600), and the wedge block II (603) is connected with a bending end of the rubber ring plate (604).
  10. 10. The offshore wind power switchgear according to claim 6, wherein a reset structure is arranged between the movable ring II (600) and the butt joint part II (302), and a reset structure is also arranged between the butt joint part I (202) and the movable ring I (500), the reset structure comprises a guide piece (700), a guide channel (701) and a reset spring II (702), the guide piece (700) is arranged on one side of the movable ring II (600), the guide channel (701) is preset on one side of the butt joint part II (302) facing the movable ring II (600), the guide piece (700) is movably arranged in the guide channel (701), and the reset spring II (702) is arranged between the guide piece (700) and the guide channel (701).

Description

Offshore wind power switchgear Technical Field The invention belongs to the technical field of switch equipment, and particularly relates to switch equipment for offshore wind power. Background With the rapid development of the offshore wind power industry, an offshore wind farm is generally built in an offshore or coastal area, and a switchgear thereof needs to be exposed to severe marine environments with high salt mist, high humidity and strong wind waves for a long period of time. The prior offshore wind power switchgear is electrically connected between an inlet box and a middle shell in a traditional bolt fixing, plug-in type or flange connection mode, but the following outstanding technical problems exist in practical application: The existing connection structure is easy to loose or shake under the action of strong offshore wind, sea wave and self vibration of equipment, so that poor contact of joints is caused, even current transmission is interrupted or electric arcs are generated, the safe and stable operation of an offshore wind power system is seriously influenced, and in a long-term salt spray erosion and humidity environment, salt particles are extremely easy to permeate into an internal current transmission point, contact corrosion, contact resistance increase, insulation performance decline and even short circuit faults are caused, the service life of the equipment is greatly shortened, and maintenance frequency and cost are increased; In view of this, a switchgear for offshore wind power is proposed. Disclosure of Invention This section is intended to outline some aspects of embodiments of the application and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the application and in the title of the application, which may not be used to limit the scope of the application. In view of the technical problems in the prior art, the prior connecting structure is easy to loose or shake under the action of strong offshore wind, sea wave and self vibration of equipment, so that poor contact of joints is caused, even current transmission is interrupted or electric arcs are generated, the safe and stable operation of an offshore wind power system is seriously influenced, and in long-term salt spray erosion and humidity environments, salt particles are extremely easy to permeate into internal current transmission points, so that contact corrosion, contact resistance increase, insulation performance reduction and even short-circuit faults are caused, the service life of the equipment is greatly shortened, and maintenance frequency and cost are increased. In order to solve the technical problems, the invention provides the technical scheme that the offshore wind power switchgear comprises an inlet box, a middle shell and an outlet box; the inlet box and the outlet box are respectively arranged at two sides of the middle shell; The upper end of the inlet box is connected with an inlet protection cylinder, an adapter cylinder is arranged in the middle shell, a first connector is arranged in the inlet protection cylinder, a second connector is arranged in the adapter cylinder, and the second connector and the first connector can guide current to transmit when being inserted; The opening part of the entering protection cylinder facing the switching cylinder is a first butt joint part, the opening part of the switching cylinder facing the entering protection cylinder is a second butt joint part, a connecting port is preset on the second butt joint part, and the connecting port is connected with the first butt joint part in a jogged manner; the first butt joint part is provided with a positioning mechanism for limiting the two states of the first butt joint part. As a preferable technical scheme of the offshore wind power switching equipment, the entering protection cylinder is provided with an annular cavity, the positioning mechanism is arranged in the annular cavity, the inner edge of the annular cavity is provided with a guide hole, the guide hole is communicated with the inner side of the first butt joint part, the outline shape of the guide hole is arc-shaped, the guide hole is inwards bent towards the axis position of the first butt joint part, the clamping beads are prevented from being separated from the annular cavity, and a plurality of guide holes are arranged. As a preferred technical scheme of offshore wind power switchgear, positioning mechanism includes fixed ring, card pearl, rotating ring and reset spring one, fixed ring locate mode is settled in the interior edge of annular chamber, the rotating ring lateral movement disposes in the annular chamber, the card pearl is provided with a plurality ofly, and the card pearl is in the guide hole, can set up according to actual demand at the guide hole towards the open position of annular chamber and keep off the resistance, lets the card pearl can not mispla