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CN-224217455-U - Static terminal contact group, circuit breaker contact mechanism and drawer type circuit breaker

CN224217455UCN 224217455 UCN224217455 UCN 224217455UCN-224217455-U

Abstract

The utility model discloses a static terminal contact group, a circuit breaker contact mechanism and a drawer-type circuit breaker, which comprise a support piece and a static terminal contact group, wherein the static terminal contact group comprises a static support and a plurality of static wiring terminal units which are fixedly arranged on the static support in sequence, and the static support is configured to be movably connected with a mounting surface of the support piece through a movable connection structure, so that the static terminal contact group can generate self-adaptive fine adjustment action relative to the mounting surface of the support piece when the static terminal contact group is in plug-in connection with a movable terminal contact group of the circuit breaker. According to the utility model, the static terminal contact group is movably connected with the mounting surface of the support piece through the movable connection structure, so that the static terminal contact group can generate self-adaptive fine adjustment action relative to the mounting surface of the support piece when being in opposite connection with the movable terminal contact group of the circuit breaker, thereby reducing the requirement on the mounting precision of the static terminal contact group and being beneficial to improving the production efficiency.

Inventors

  • YOU ANSHUN
  • LIN ZHENGJI
  • LIN XINDE
  • TAN ZHONGHUA

Assignees

  • 漳州宏发电声有限公司

Dates

Publication Date
20260508
Application Date
20250515

Claims (10)

  1. 1. The static terminal contact group is applied to a circuit breaker and is characterized by comprising a support piece (1) and a static terminal contact group (2), wherein the static terminal contact group (2) comprises a static support (21) and a plurality of static wiring terminal units (22) fixedly installed on the static support (21) in sequence, and the static support (21) is configured to be movably connected with a mounting surface (11) of the support piece (1) through a movable connection structure so that the static terminal contact group (2) can generate self-adaptive fine adjustment action relative to the mounting surface (11) of the support piece (1) when being in opposite connection with a movable terminal contact group (3) of the circuit breaker.
  2. 2. The static terminal contact group according to claim 1, wherein the static support (21) is movably connected with the mounting surface (11) of the supporting member (1) through a movable hanging structure, and a movable gap is reserved between the static support (21) and the mounting surface (11) of the supporting member (1).
  3. 3. The static terminal contact group according to claim 2, wherein a hanging hole (111) is formed in the mounting surface (11) of the support member (1), a hook (211) movably hanging with the hanging hole (111) is arranged on the back of the static support (21), and an up-down left-right movable gap is reserved between the hook (211) and the hanging hole (111).
  4. 4. The set of claim 2, wherein the top surface of the hook (211) is a cambered surface structure capable of reducing the friction force.
  5. 5. The static terminal contact group according to claim 1, characterized in that the support (1) is a circuit breaker drawer arc chute.
  6. 6. The circuit breaker contact mechanism is characterized by comprising a movable terminal contact group (3) and the static terminal contact group (2) according to any one of claims 1 to 5, wherein the movable terminal contact group (3) comprises a movable support (31) and a plurality of movable wiring terminal units (32) fixedly arranged on the movable support (31) in sequence, and an opposite-insertion guide structure capable of mutually matching to guide the opposite-insertion process of the movable terminal contact group (3) and the static terminal contact group (2) is arranged between the movable support (31) and the static support (21).
  7. 7. The circuit breaker contact mechanism according to claim 6, wherein a guiding slot (212) and a guiding convex rib (311) which are matched with each other are arranged between the static bracket (21) and the movable bracket (31), and an opposite-insertion guiding structure is formed by the insertion matching of the guiding slot (212) and the guiding convex rib (311) so as to guide the opposite-insertion process of the movable terminal contact group (3) and the static terminal contact group (2); The insertion port of the guide convex rib (311) is in a horn mouth shape, and the head of the guide slot (212) is provided with a chamfer structure.
  8. 8. The circuit breaker contact mechanism of claim 6, wherein the stationary terminal unit (22) comprises a stationary terminal housing (221), the movable terminal unit (32) comprises a movable terminal housing (321), a plugging space for the movable terminal housing (321) to be inserted is formed on the stationary terminal housing (221), a first stationary boss (2211) and a second stationary boss (2212) are arranged in the plugging space of the stationary terminal housing (221), a first movable boss (3211) and a second movable boss (3212) are formed on the movable terminal housing (321), so that when the movable terminal housing (321) is inserted into the plugging space of the stationary terminal housing (221) and is in a test state position, the first movable boss (3211) and the first stationary boss (2211) are abutted together to improve the plugging fit reliability of the stationary terminal housing (221) and the terminal housing (321), and when continuing to push the movable terminal housing (321) into the plugging space, the first movable boss (3211) and the first stationary boss (321) are staggered with each other to reduce the sliding resistance of the movable terminal housing (321) until the first movable boss (2212) is continued to be pushed into the first position, meanwhile, the second movable boss (3212) is abutted against the first static boss (2211) so as to improve the plugging matching reliability of the static terminal shell (221) and the movable terminal shell (321).
  9. 9. The circuit breaker contact mechanism of claim 8, wherein a stationary protruding rib (2213) and a movable inserting groove (3213) are arranged between the stationary terminal housing (221) and the movable terminal housing (321) and are matched with each other, and the stationary protruding rib (2213) and the movable inserting groove (3213) are in plug-in fit to form a guiding effect on the plug-in connection of the stationary terminal housing (221) and the movable terminal housing (321).
  10. 10. A drawer-type circuit breaker characterized by comprising the static terminal contact set according to any one of claims 1 to 5 or the circuit breaker contact mechanism according to any one of claims 6 to 9.

Description

Static terminal contact group, circuit breaker contact mechanism and drawer type circuit breaker Technical Field The utility model relates to the technical field of circuit breakers, in particular to a static terminal contact group, a circuit breaker contact mechanism and a drawer-type circuit breaker. Background The static terminal contact group of the existing drawer-type circuit breaker is usually fixedly arranged, when the static terminal contact group is in opposite connection with the corresponding movable terminal contact group, the static terminal contact group does not have a micro-motion space, so that higher alignment accuracy is required between the static terminal contact group and the corresponding movable terminal contact group, otherwise, the problem that contact between the corresponding movable contact piece and the static contact piece is unreliable due to inaccurate alignment is likely to occur, and the installation difficulty is likely to be increased to a certain extent to realize high alignment accuracy, so that the production efficiency is not facilitated to be improved. Disclosure of utility model Aiming at the defects of the prior art, the utility model provides the static terminal contact group, which is movably connected with the mounting surface of the support piece through the movable connection structure, so that the static terminal contact group can generate self-adaptive fine adjustment action relative to the mounting surface of the support piece when being in opposite-plug connection with the movable terminal contact group of the circuit breaker, thereby reducing the requirement on the mounting precision of the static terminal contact group and being beneficial to improving the production efficiency. In order to achieve the above purpose, the utility model is realized by the following technical scheme: The static terminal contact group comprises a support piece and a static terminal contact group, wherein the static terminal contact group comprises a static support and a plurality of static wiring terminal units which are fixedly installed on the static support in sequence, and the static support is configured to be movably connected with a mounting surface of the support piece through a movable connection structure, so that the static terminal contact group can generate self-adaptive fine adjustment action relative to the mounting surface of the support piece when being in opposite insertion connection with a movable terminal contact group of the circuit breaker. Further, the static support and the mounting surface of the support piece are movably connected through a movable hanging structure, and a movable gap is reserved between the static support and the mounting surface of the support piece. Further, a hanging hole is formed in the mounting surface of the support, a hook which is movably hung with the hanging hole is arranged at the back of the static support, and an up-down left-right movable gap is reserved between the hook and the hanging hole. Further, the hanging top surface of the hook is of a cambered surface structure capable of reducing the moving friction force. Further, the support is a circuit breaker drawer arc chute. Based on the same conception, the utility model also provides a circuit breaker contact mechanism which comprises a movable terminal contact group and the static terminal contact group, wherein the movable terminal contact group comprises a movable support and a plurality of movable wiring terminal units which are fixedly arranged on the movable support in sequence, and a mutual insertion guide structure which can be mutually matched to guide the insertion process of the movable terminal contact group and the static terminal contact group is arranged between the movable support and the static support. Further, a guiding slot and a guiding convex rib which are matched with each other are arranged between the static support and the movable support, and an opposite-inserting guiding structure is formed through the insertion and connection of the guiding slot and the guiding convex rib so as to guide the opposite-inserting process of the movable terminal contact group and the static terminal contact group. Furthermore, the insertion port of the guide convex rib is in a horn mouth shape, and the head part of the guide slot is provided with a chamfer angle structure. Further, the static wiring terminal unit includes the static terminal casing, move the terminal casing including moving the terminal casing, be formed with the grafting space that supplies the terminal casing adaptation to insert on the static terminal casing, be provided with first quiet boss and second quiet boss in the grafting space of static terminal casing, be formed with first movable boss and second movable boss on the terminal casing, make when moving the terminal casing and inserting the grafting space of terminal casing and be in experimental state position, first movable bo