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CN-224217380-U - Linkage structure of multipolar contact of dual-power supply switch

CN224217380UCN 224217380 UCN224217380 UCN 224217380UCN-224217380-U

Abstract

The utility model relates to a linkage structure of a multipolar contact of a dual-power switch, which comprises a rotating shaft, a handle, a multipolar contact, a driving shaft, an electromagnetic driving device and a rotating shaft, wherein the rotating shaft is a metal shaft, the handle is arranged at one end of the rotating shaft and synchronously rotates with the rotating shaft under the action of external force, the multipolar contact is linked with the rotating shaft and comprises at least two pole moving contact assemblies axially arranged on the rotating shaft, one end of the driving shaft is connected with the electromagnetic driving device, the other end of the driving shaft is axially arranged at the other side of the handle relative to the rotating shaft, and the driving shaft can horizontally move along the direction vertical to the rotating shaft under the action of the electromagnetic driving device so as to drive the handle and the rotating shaft to rotate. In the scheme, the linkage structure comprises a rotating shaft, a handle, a multipole contact and a driving shaft, wherein the rotating shaft is a metal shaft, the handle and the multipole contact are sleeved on the metal shaft, the driving shaft is arranged on the handle, the metal shaft is used as a linkage piece, and the handle, the multipole contact and the metal shaft are synchronously linked, so that the linkage consistency is good.

Inventors

  • LI JUN
  • LIU FU
  • Pei Zenan
  • LI YIWEI
  • YING JUNCHAO
  • HU YUAN

Assignees

  • 浙江百事宝电器股份有限公司

Dates

Publication Date
20260508
Application Date
20250531

Claims (8)

  1. 1. The linkage structure of the multipolar contact of the double-power supply switch is characterized by comprising the following components: A rotating shaft (1), wherein the rotating shaft (1) is a metal shaft; The handle (2) is arranged at one end of the rotating shaft (1) and synchronously rotates with the rotating shaft (1) under the action of external force; the multi-pole contact is linked with the rotating shaft (1), and comprises at least two-pole moving contact assemblies axially arranged on the rotating shaft (1), wherein each moving contact assembly comprises a rotor (3) sleeved on the rotating shaft (1) and a moving contact rod (4) arranged on the rotor (3), and moving contacts (5) are welded on the upper side and the lower side of two ends of each moving contact rod (4); One end of the driving shaft (6) is connected with the electromagnetic driving device, the other end of the driving shaft (6) is arranged on the other side of the handle (2) along the axial direction relative to the rotating shaft (1), and the driving shaft (6) can horizontally move along the direction vertical to the rotating shaft (1) under the action of the electromagnetic driving device so as to drive the handle (2) and the rotating shaft (1) to rotate.
  2. 2. The linkage structure of the multipolar contact of the dual-power switch, as claimed in claim 1, is characterized in that the rotating shaft (1) is square, square assembly holes (7) in interference fit with the rotating shaft (1) are formed in the rotor (3) in a penetrating mode, and square connecting grooves (8) in interference fit with the rotating shaft (1) are formed in the lower portion of the handle (2).
  3. 3. The linkage structure of the dual-power-supply switch multipolar contact according to claim 2, wherein the rotor (3) comprises a rotating column (9) and convex columns (10) axially formed on two sides of the rotating column (9), the outer diameter of each convex column (10) is smaller than that of the rotating column (9), the convex columns (10) of the adjacent rotor (3) are abutted, a connecting column (11) is transversely constructed at the lower part of the handle (2), and the outer end of each connecting column (11) protrudes out of the inner end surface of the handle (2) to be abutted against the adjacent convex column (10); A plurality of partition boards (13) are longitudinally arranged on a base (12), a movable area for accommodating a movable contact assembly is formed between every two adjacent partition boards (13), the middle parts of the partition boards (13) are sunken downwards to form an erection table (14), a rotor (3) is erected on the erection table (14), the middle parts of the erection table (14) are sunken downwards to form circular arc-shaped mounting grooves (15), a rotating column (9) is located in the movable area, and a protruding column (10) and a connecting column (11) are adaptively erected in the mounting grooves (15).
  4. 4. The linkage structure of the multipolar contact of the dual-power switch, which is disclosed in claim 3, is characterized in that a limiting block (16) is arranged on one end, opposite to the handle (2), of the rotating shaft (1) in interference fit, and the limiting block (16) abuts against the adjacent convex column (10).
  5. 5. The linkage structure of the multipolar contact of the double-power-supply switch according to claim 2, wherein a connecting seat (17) is arranged in the middle of the handle (2), a connecting hole (18) is formed in the connecting seat (17) in an axial penetrating mode, and the driving shaft (6) connected with the electromagnetic driving device is inserted into the connecting hole (18).
  6. 6. The linkage structure of the multipolar contact of the dual-power-supply switch, which is disclosed in claim 5, is characterized in that a reinforcing seat (19) is arranged on one side, facing away from the multipolar contact, of the connecting seat (17), the connecting hole (18) extends to penetrate through the reinforcing seat (19), and a plurality of reinforcing ribs (23) are arranged on the periphery of the reinforcing seat (19).
  7. 7. The linkage structure of the multipolar contact of the double-power-supply switch, as claimed in claim 6, is characterized in that a notch (20) is formed in the driving shaft (6) along the axial direction, and the driving shaft (6) is arranged on the connecting hole (18) in a tensioning mode.
  8. 8. The linkage structure of the multipolar contact of the double-power-supply switch of claim 7, wherein the upper part of the handle (2) is provided with a mounting seat (21), and a jack (22) connected with a deflector rod is longitudinally arranged on the mounting seat (21).

Description

Linkage structure of multipolar contact of dual-power supply switch Technical Field The utility model relates to the technical field of power switches, in particular to a linkage structure of a multipolar contact of a dual-power-supply switch. Background The dual-power change-over switch is used as key equipment for guaranteeing power supply continuity and is widely applied to the fields of data centers, medical facilities, industrial automation and the like. The key function of the switch is that the switch is switched between the main power supply and the standby power supply rapidly and reliably, and the stability and the safety of the switch are directly determined by the synchronous linkage performance of the multipolar contact. The dual-power supply change-over switch is generally composed of two modules, namely a driving module and a main loop change-over module, wherein the main loop change-over module can be divided into 1 pole, 2 poles, 3 poles, 4 poles and the like, and in the driving change-over process, the force value of the driving module needs to be reliably conducted to the main loop module, and the linkage consistency between the poles of the main loop module is maintained. In the existing dual-power change-over switch product, a driving module is controlled by a motor, no handle exists, a following shaft is arranged at the center of the motor, and the rotation of the shaft drives linkage among poles. In general, the product driven by the electromagnetic coil is adopted, no metal shaft exists in the linkage between the poles, and the movable contact is installed on the handle for linkage only by means of a longer plastic handle. The product is electrified to heat the movable contact, so that the plastic loses internal moisture for a long time in the dry and hot environment, the performance of the plastic can be reduced, embrittlement, deformation and even fracture are caused, and transmission failure is caused. In addition, the elastic modulus of the plastic is low, tiny deformation accumulation is easy to generate in the frequent switching process, so that the action of the multipole contact is asynchronous, the contact resistance is increased, and the arc risk is induced. Disclosure of Invention In order to solve the problems, the utility model aims to provide a linkage structure of a multipolar contact of a dual-power switch, which is a transmission mode of combining a handle and a metal shaft, wherein the metal shaft is used as a linkage piece, the handle and the movable contact of each pole are sleeved on the metal shaft to be used as a linkage mode among multipoles of a product, and a driving shaft connected with an electromagnetic driving device is arranged on the handle to drive the handle to rotate. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The linkage structure of the multipolar contact of the double-power supply switch is characterized by comprising the following components: A rotation shaft which is a metal shaft; the handle is arranged at one end of the rotating shaft and synchronously rotates with the rotating shaft under the action of external force; The multi-pole contact is linked with the rotating shaft and comprises at least two-pole moving contact assemblies axially arranged on the rotating shaft, wherein each moving contact assembly comprises a rotor sleeved on the rotating shaft and a moving contact rod arranged on the rotor, and moving contacts are welded on the upper side and the lower side of two ends of each moving contact rod; One end of the driving shaft is connected with the electromagnetic driving device, the other end of the driving shaft is arranged on the other side of the handle along the axial direction relative to the rotating shaft, and the driving shaft can horizontally move along the direction vertical to the rotating shaft under the action of the electromagnetic driving device so as to drive the handle and the rotating shaft to rotate. Preferably, the rotating shaft is square, a square assembly hole in interference fit with the rotating shaft is penetrated through the rotor, and a square connecting groove in interference fit with the rotating shaft is formed in the lower portion of the handle. Preferably, the rotor comprises a rotating column and convex columns axially formed on two sides of the rotating column, wherein the outer diameter of each convex column is smaller than that of the rotating column, and the convex columns of adjacent rotors are propped against each other; A plurality of partition boards are longitudinally arranged on a base, a movable area for accommodating a movable contact assembly is formed between every two adjacent partition boards, the middle parts of the partition boards are downwards sunken to form an erection table, a rotor is erected on the erection table, the middle parts of the erection table are downwards sunken to form circular arc-shaped mounting groove