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CN-224232609-U - Contact device

CN224232609UCN 224232609 UCN224232609 UCN 224232609UCN-224232609-U

Abstract

The utility model provides a contact device, and relates to the technical field of piezoelectric devices. The contact device comprises a moving contact assembly and a connecting seat, wherein the moving contact assembly comprises two contact bridges, first clearance fit parts are arranged on the lower end faces of the two contact bridges, the connecting seat comprises a connecting main body and a limiting assembly, the limiting assembly is arranged on the connecting main body and matched with the connecting main body to form two installation areas which are distributed at intervals along the Y direction, the two contact bridges are correspondingly and limitedly connected to the two installation areas one by one, the bottom wall of the installation area is provided with second clearance fit parts in clearance fit with the corresponding first clearance fit parts, one of the first clearance fit parts and the second clearance fit parts is provided with a convex rail, and the other one of the first clearance fit parts and the second clearance fit parts is provided with a groove. The contact device provided by the utility model can reduce the difficulty of adjusting the height difference of the two ends of the contact bridge and ensure the effect of adjusting the height difference.

Inventors

  • WANG XIAOJUAN
  • SHI XIAOYAN
  • HU JIQING
  • WANG HAIYUAN
  • XU SHENGGUO
  • HU HAOTIAN
  • HOU MINGMING

Assignees

  • 浙江正泰电器股份有限公司

Dates

Publication Date
20260512
Application Date
20250512

Claims (10)

  1. 1. A contact arrangement, comprising: The movable contact assembly (100) comprises two contact bridges (110), and first clearance fit parts (111) are arranged on the lower end faces of the two contact bridges (110); The connecting seat (200) comprises a connecting main body (210) and a limiting assembly (220), wherein the limiting assembly (220) is arranged on the connecting main body (210) and is matched with the connecting main body (210) to form two installation areas which are distributed at intervals along the Y direction, the two contact bridges (110) are correspondingly and limitedly connected to the two installation areas one by one, and the bottom wall of the installation area is provided with a second clearance fit part (211) in clearance fit with the corresponding first clearance fit part (111); One of the first clearance fit portion (111) and the second clearance fit portion (211) is provided as a male rail, and the other is provided as a female groove.
  2. 2. The contact arrangement of claim 1, wherein the cross-sectional shape of the groove in the Y-direction is arcuate, and the side wall of the male rail adjacent to the groove is correspondingly configured as an arcuate surface.
  3. 3. The contact device according to claim 2, characterized in that a line between the center of the projection and the center of the recess is perpendicular to the upper end face of the connecting body (210).
  4. 4. A contact arrangement according to claim 3, characterized in that in the X-direction the contact bridge (110) is arranged symmetrically at both ends with respect to the line between the centre of the convex track and the centre of the concave groove.
  5. 5. Contact arrangement according to claim 1, characterized in that the second clearance fit (211) is provided as a male rail and the first clearance fit (111) is provided as a recess, both sides of which are in smooth transition connection with the corresponding contact bridge (110).
  6. 6. The contact arrangement according to claim 5, characterized in that in the Y-direction, the first clearance fit portions (111) each extend through the respective contact bridge (110), and the second clearance fit portions (211) have equal lengths in relation to the first clearance fit portions (111).
  7. 7. The contact device according to claim 6, wherein the limiting assembly (220) includes two first limiting members (221) and two limiting groups, the two first limiting members (221) are disposed in the middle of the connecting body (210) along the Y direction, the two first limiting members (221) are disposed at opposite intervals along the X direction, the first limiting portions (2211) on the two first limiting members (221) are parallel to the upper end surface of the connecting body (210), and the first side of the contact bridge (110) is limited between the two first limiting portions (2211) and the upper end of the connecting body (210); Along the Y direction, the two limiting parts are respectively arranged at two sides of the two first limiting parts (221), and the second side of the contact bridge (110) is abutted against the corresponding limiting group; One side of the convex rail, which is close to the first limiting piece (221), is provided with an avoidance surface (2110).
  8. 8. The contact device according to claim 7, characterized in that the direction from the first stop element (221) to the stop group corresponds to the direction of the relief surface (2110) facing away from the upper end surface of the connecting body (210).
  9. 9. The contact device according to claim 8, wherein 0.3mm is equal to or greater than L is equal to or greater than-0.2 mm, wherein L is a distance between an inclination start point of the avoidance surface (2110) near a side corresponding to the limit group and a side wall of the first limit piece (221) near the side corresponding to the limit group.
  10. 10. The contact device according to claim 7, wherein, along the X direction, both sides of each second clearance fit portion (211) are provided with adjustment inclined planes (212), and two adjustment inclined planes (212) on the same side are disposed on the upper end surface of the connecting body (210) in one-to-one correspondence with two first limiting members (221), and a clearance is provided between each adjustment inclined plane (212) and the corresponding contact bridge (110).

Description

Contact device Technical Field The utility model relates to the technical field of piezoelectric devices, in particular to a contact device. Background With the continuous progress of the industry of the piezoelectric devices, the switch devices such as a relay, a contactor and the like are widely applied to various fields such as industrial control, building electrical, household appliances and the like, and a contact device is used as a key component of the switch devices, so that the performance and the reliability of the devices are very important. The bridge contact has good conductivity and contact stability, and is widely applied to various switch devices. In the actual production process, the bridge contact is influenced by factors such as machining precision, assembly error, material deformation and the like, and in the installation process, the bridge contact is influenced by factors such as hole position precision of a connecting seat, fit tolerance of a contact bridge and the connecting seat and the like, so that the conditions that the heights of two ends of the contact bridge are possibly inconsistent are caused. The existing bridge contact structure lacks an effective balance adjustment mechanism, and if the heights of the two ends are inconsistent after the contact bridge is installed, the adjustment clearance is easy to be too small when the heights of the two ends of the contact bridge are adjusted, so that the error compensation range is smaller or the error compensation effect cannot be achieved, the height adjustment is difficult, and the height adjustment effect is poor. Disclosure of utility model The utility model aims to provide a contact device which can reduce the difficulty of adjusting the height difference at two ends of a contact bridge and ensure the effect of adjusting the height difference. To achieve the purpose, the utility model adopts the following technical scheme: a contact arrangement comprising; the movable contact assembly comprises two contact bridges, and first clearance fit parts are arranged on the lower end faces of the two contact bridges; The connecting seat comprises a connecting main body and a limiting assembly, wherein the limiting assembly is arranged on the connecting main body and matched with the connecting main body to form two installation areas which are distributed at intervals along the Y direction, the two contact bridges are in one-to-one corresponding limiting connection with the two installation areas, and the bottom wall of the installation area is provided with a second clearance fit part in clearance fit with the corresponding first clearance fit part; One of the first clearance fit portion and the second clearance fit portion is provided as a male rail, and the other is provided as a female groove. As a further technical scheme, the cross section of the groove along the Y direction is arc-shaped, and the side wall of the convex rail, which is close to the groove, is correspondingly provided with an arc-shaped surface. As a further technical scheme, a connecting line between the circle center of the convex rail and the circle center of the groove is perpendicular to the upper end face of the connecting main body. As a further technical scheme, along the X direction, two ends of the contact bridge are symmetrically arranged about a connecting line between the circle center of the convex rail and the circle center of the groove. As a further technical scheme, the second clearance fit part is arranged as a convex rail, the first clearance fit part is arranged as a groove, and two sides of the groove are in smooth transition connection with the corresponding contact bridge. As a further technical scheme, along the Y direction, the first clearance fit portions penetrate through and correspond to the contact bridge, and the lengths of the second clearance fit portions are equal to those of the first clearance fit portions. As a further technical scheme, the limiting assembly comprises two first limiting parts and two limiting groups, the two first limiting parts are arranged in the middle of the connecting main body along the Y direction, the two first limiting parts are arranged at intervals along the X direction, the first limiting parts on the two first limiting parts are parallel to the upper end surface of the connecting main body, and the first side of the contact bridge is limited between the two first limiting parts and the upper end of the connecting main body; Along the Y direction, the two limiting parts are respectively arranged at two sides of the two first limiting parts, and the second side of the contact bridge is abutted against the corresponding limiting part; one side of the convex rail, which is close to the first limiting part, is arranged as an avoidance surface. As a further technical scheme, the direction from the first limiting part to the limiting group is inclined corresponding to the direction of the avoidance surfac