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CN-224217371-U - Split type moving contact structure and dual power supply change-over switch

CN224217371UCN 224217371 UCN224217371 UCN 224217371UCN-224217371-U

Abstract

The utility model relates to a split type movable contact structure and a dual-power supply switch, which comprises a movable contact rod, wherein the movable contact rod comprises an upper movable contact rod and a lower movable contact rod, the upper movable contact rod comprises an upper arc plate, an upper connecting plate and an upper assembly plate, the upper arc plate is arranged in an upward arch mode, the lower movable contact rod comprises a lower arc plate, a lower connecting plate and a lower assembly plate, the lower arc plate is arranged in a downward concave mode, the upper arc plate and the lower arc plate are oppositely arranged and spliced to form a circular ring, the upper ends of the upper assembly plates on two sides are welded with upper movable contacts, and the lower ends of the lower assembly plates on two sides are welded with lower movable contacts. In this scheme, the movable contact pole includes fixed upper movable contact pole and lower movable contact pole that laminate mutually to upper movable contact pole's middle part is configured to the last circular arc board of upwards arching, and lower movable contact pole's middle part is configured to the lower circular arc board of undercut, and movable contact pole's whole cross-sectional area increases and makes upper and lower movable contact pole realize the electric current reposition of redundant personnel, reduces single movable contact pole current-carrying pressure, promotes current-carrying capacity.

Inventors

  • LIU FU
  • Pei Zenan
  • LI JUN
  • LI YIWEI
  • LI XIANG
  • HU YUAN

Assignees

  • 浙江百事宝电器股份有限公司

Dates

Publication Date
20260508
Application Date
20250531

Claims (9)

  1. 1. The split type movable contact structure is characterized by comprising a movable contact rod, wherein the movable contact rod comprises an upper movable contact rod (1) and a lower movable contact rod (2) which are fixed in a fitting manner, the upper movable contact rod (1) comprises an upper arc plate (3), an upper connecting plate (4) and an upper assembly plate (5), the upper arc plate (3) is arranged in an upward arch manner, the upper connecting plate (4) is formed on two sides of the upper arc plate (3), the upper assembly plate (5) is formed on the outer ends of the upper connecting plates (4) on two sides respectively, the lower movable contact rod (2) comprises a lower arc plate (6), a lower connecting plate (7) and a lower assembly plate (8), the lower arc plate (6) is arranged in a downward concave manner, the lower connecting plate (7) is formed on two sides of the lower arc plate (6), and the lower assembly plate (8) is formed on the outer ends of the lower connecting plates (7) on two sides respectively; The upper arc plates (3) and the lower arc plates (6) are oppositely arranged and spliced to form a circular ring, connecting holes (9) used for being connected with a rotating mechanism are formed in the circular ring, the upper connecting plate (4) and the lower connecting plate (7), the upper assembly plates (5) and the lower assembly plates (8) are all attached up and down, upper moving contacts (10) are welded at the upper ends of the upper assembly plates (5) on two sides, and lower moving contacts (11) are welded at the lower ends of the lower assembly plates (8) on two sides.
  2. 2. The split type movable contact structure according to claim 1, wherein the front side and the rear side of the upper arc plate (3) and the lower arc plate (6) respectively extend out of the two sides of the upper connecting plate (4) and the lower connecting plate (7).
  3. 3. The split type movable contact structure according to claim 1, wherein a plurality of rivet holes (12) are correspondingly formed in the upper connecting plate (4) and the lower connecting plate (7), and rivets are inserted into the rivet holes (12) to rivet and connect the upper movable contact rod (1) with the lower movable contact rod (2).
  4. 4. The split type movable contact structure according to claim 3, wherein the upper connecting plates (4) on two sides and the lower connecting plates (7) on two sides are symmetrically arranged on two sides of the upper arc plate (3) and the lower arc plate (6) respectively.
  5. 5. The split movable contact structure according to claim 4, wherein the upper mounting plates (5) on both sides are symmetrically arranged and bent upward to form an upper obtuse angle plate, and the lower mounting plates (8) on both sides are symmetrically arranged and bent upward to form a lower obtuse angle plate.
  6. 6. The split type movable contact structure according to claim 1, wherein the upper arc plate (3), the upper connecting plate (4) and the upper assembly plate (5), and the lower arc plate (6), the lower connecting plate (7) and the lower assembly plate (8) are integrally formed respectively.
  7. 7. The split type movable contact structure according to claim 6, wherein the lower end of the upper arc plate (3) and the upper connecting plate (4) and the upper end of the lower arc plate (6) and the lower connecting plate (7) are respectively in arc transition.
  8. 8. The dual-power change-over switch is characterized by comprising the split type movable contact structure as claimed in any one of claims 1-7, and further comprising a rotating mechanism, wherein the rotating mechanism comprises a rotor (13) arranged on a connecting hole (9), sector blocks (14) are formed at the upper end and the lower end of the rotor (13), and sector holes (15) matched with the sector blocks (14) are respectively formed in the upper arc plate (3) and the lower arc plate (6).
  9. 9. The dual-power switch as set forth in claim 8, wherein the rotating mechanism further comprises clamping seats (16) disposed on two sides of the rotor (13), the clamping seats (16) are installed on the outer sides of the upper connecting plate (4) and the lower connecting plate (7) in a clamping mode, and the clamping seats (16) are connected with the upper connecting plate (4) and the lower connecting plate (7) in a riveting mode.

Description

Split type moving contact structure and dual power supply change-over switch Technical Field The utility model relates to the technical field of power switches, in particular to a split type movable contact structure and a dual-power supply change-over switch. Background In a dual power switch, the moving contact is the core component that carries and switches the main loop current. In the prior art, the movable contact rod adopts an integrated structure, the sectional area of the movable contact rod is limited by a processing technology, the requirement for large current is difficult to meet, and particularly when the movable contact rod runs under high load for a long time, the current concentration is easy to cause local temperature rise to be too high, so that the contact resistance is increased, and the stability and the service life of a switch are influenced. In addition, the integral structure is complicated in stamping and forming process of the copper material with large cross section area due to the large thickness of the copper material, a high-precision die is needed, the material waste rate is high, and the processing is difficult and the cost is high. And, the integral type structure is for adaptation rotary mechanism connection, needs to reserve great inner space, leads to the whole volume of switch to be bloated, is difficult to adapt to compact switch design. Disclosure of Invention In order to solve the above problems, a first object of the present utility model is to provide a split-type moving contact structure, which increases the cross-sectional area of the moving contact rod and realizes current split by designing the moving contact rod to be split up and down, and simultaneously reduces the processing difficulty of the moving contact rod, and the central ring design saves the internal space and adapts to the compact switch layout. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The split type movable contact structure is characterized by comprising a movable contact rod, wherein the movable contact rod comprises an upper movable contact rod and a lower movable contact rod which are fixed in a bonding manner, the upper movable contact rod comprises an upper arc plate, an upper connecting plate and an upper assembly plate, the upper arc plate is arranged in an upward arch manner, the upper connecting plate is formed on two sides of the upper arc plate, the upper assembly plate is formed on the outer ends of the upper connecting plates on two sides respectively, the lower movable contact rod comprises a lower arc plate, a lower connecting plate and a lower assembly plate, the lower arc plate is arranged in a downward concave manner, the lower connecting plate is formed on two sides of the lower arc plate, and the lower assembly plate is formed on the outer ends of the lower connecting plates on two sides respectively; the upper arc plate and the lower arc plate are oppositely arranged and spliced to form a circular ring, a connecting hole for connecting with the rotating mechanism is formed in the circular ring, the upper connecting plate and the lower connecting plate, the upper assembly plate and the lower assembly plate are all attached up and down, the upper ends of the upper assembly plates on two sides are welded with upper moving contacts, and the lower ends of the lower assembly plates on two sides are welded with lower moving contacts. Preferably, the front and rear sides of the upper arc plate and the lower arc plate respectively extend out of the two sides of the upper connecting plate and the lower connecting plate. Preferably, a plurality of rivet holes are correspondingly formed in the upper connecting plate and the lower connecting plate, and rivets are inserted into the rivet holes to rivet and connect the upper movable contact rod and the lower movable contact rod. Preferably, the upper connecting plates on two sides and the lower connecting plates on two sides are respectively and symmetrically arranged on two sides of the upper arc plate and the lower arc plate. Preferably, the upper assembly plates on two sides are symmetrically arranged and bent upwards to form an upper obtuse angle plate, and the lower assembly plates on two sides are symmetrically arranged and bent upwards to form a lower obtuse angle plate. Preferably, the upper arc plate, the upper connecting plate and the upper assembly plate, and the lower arc plate, the lower connecting plate and the lower assembly plate are integrally formed respectively. Preferably, the lower end of the upper arc plate and the upper connecting plate, and the upper end of the lower arc plate and the lower connecting plate are respectively in arc transition. The dual-power change-over switch is characterized by comprising the split type movable contact structure, a rotating mechanism and a connecting hole, wherein the rotating mechanism comprises a rotor arranged on the