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CN-224217451-U - Electrical switch

CN224217451UCN 224217451 UCN224217451 UCN 224217451UCN-224217451-U

Abstract

Embodiments of the present disclosure provide an electrical switch. The electrical switch comprises a disconnecting member, a first wiring member, a second wiring member, a first wiring terminal, a second wiring terminal, a first bimetallic strip and a second bimetallic strip, wherein the disconnecting member is suitable for switching the on-off state of the electrical switch, the first wiring member and the second wiring member are suitable for locking a first external connecting member to a position connected with the first wiring member, the second wiring terminal is suitable for locking a second external connecting member to a position connected with the second wiring member, one end of the first bimetallic strip is connected with the first wiring member, the other end of the first bimetallic strip extends to a position adjacent to the disconnecting member, the first bimetallic strip is suitable for moving towards the disconnecting member under the condition of thermal deformation so as to drive the disconnecting member to switch the electrical switch to the disconnecting state, and one end of the second bimetallic strip is connected to the second wiring member, and the other end of the second bimetallic strip is suitable for moving towards the disconnecting member under the condition of thermal deformation so as to drive the disconnecting member to switch the electrical switch to the disconnecting state.

Inventors

  • SUN ZHENGUO
  • GONG ZHENYAO

Assignees

  • 施耐德电气（中国）有限公司

Dates

Publication Date
20260508
Application Date
20250527

Claims (8)

  1. 1. An electrical switch (100), characterized in that the electrical switch (100) comprises: A disengagement member (1) adapted to switch the on-off state of the electrical switch (100); A first wire connector (21) and a second wire connector (22); -a first connection terminal (31) and a second connection terminal (32), the first connection terminal (31) being adapted to lock a first external connection to a position of connection with the first connection (21), and the second connection terminal (32) being adapted to lock a second external connection to a position of connection with the second connection (22); A first bimetal (4) having one end connected to the first wire connecting member (21) and the other end extending to a position adjacent to the trip member (1), the first bimetal (4) being adapted to move towards the trip member (1) under thermal deformation to drive the trip member (1) to switch the electrical switch (100) to a breaking state, and And a second bimetal (5) having one end connected to the second wire connecting member (22) and the other end extending to a position adjacent to the trip member (1), the second bimetal (5) being adapted to move toward the trip member (1) under thermal deformation to drive the trip member (1) to switch the electrical switch (100) to a breaking state.
  2. 2. The electrical switch (100) according to claim 1, wherein the second bimetal (5) comprises a connection portion (51), an extension portion (52) and a driving portion (53), the extension portion (52) being arranged between the connection portion (51) and the driving portion (53), the connection portion (51) being connected to the second wire member (22), and the driving portion (53) being adapted to drive the trip member (1).
  3. 3. The electrical switch (100) according to claim 2, wherein the driving portion (53) is spaced apart from the trip member (1) without deformation of the second bimetal (5).
  4. 4. The electrical switch (100) according to claim 2, wherein the connection (51) is welded to the second wire connection (22).
  5. 5. The electrical switch (100) according to claim 2, wherein the extension (52) comprises a first portion (521), a second portion (522) and a third portion (523) arranged between the first portion (521) and the second portion (522), the first portion (521) being connected with the connection (51) and being bent with respect to the connection (51), and the second portion (522) being connected with the drive (53) and being bent with respect to the drive (53).
  6. 6. The electrical switch (100) of claim 5, wherein the third portion (523) comprises a single segment or a plurality of segments that are bent relative to each other.
  7. 7. The electrical switch (100) of claim 6, wherein the first portion (521) and the second portion (522) are bent towards the same side of the third portion (523), and wherein the first portion (521) and the second portion (522) are each disposed at a predetermined angle with respect to the third portion (523).
  8. 8. The electrical switch (100) according to any one of claims 1 to 7, wherein the electrical switch (100) comprises a circuit breaker.

Description

Electrical switch Technical Field Embodiments of the present disclosure relate generally to the field of electrical equipment technology, and more particularly, to electrical switches. Background As a protection switch, an electrical switch is required to carry and break a corresponding current. An electrical switch, such as a circuit breaker, is capable of breaking current in the event of an overload, short circuit or leakage fault in the circuit, thereby protecting the line and equipment. Disclosure of utility model In one aspect of the disclosure, an electrical switch is provided that includes a trip member adapted to switch an on-off state of the electrical switch, first and second wire members, first and second wire terminals, the first wire terminal adapted to lock a first external connection member to a position connected to the first wire member and the second wire terminal adapted to lock a second external connection member to a position connected to the second wire member, a first bimetal having one end connected to the first wire member and the other end extending to a position adjacent to the trip member, the first bimetal being adapted to move toward the trip member upon thermal deformation to drive the trip member to switch the electrical switch to a breaking state, and a second bimetal having one end connected to the second wire member and the other end extending to a position adjacent to the trip member, the second bimetal being adapted to move toward the trip member upon thermal deformation to drive the trip member to switch the electrical switch to a breaking state. According to the embodiment of the present disclosure, in the case where any one of the first and second connection terminals abnormally emits heat due to unexpected loosening, heat on the corresponding connection terminal can be conducted to the corresponding bimetal through the corresponding connection piece. In this way, the corresponding bimetallic strip can be heated and bent and drive the trip member to switch the electrical switch to the breaking state, thereby realizing the thermal trip action and avoiding damaging the electrical switch. In some embodiments, the second bimetal includes a connection portion, an extension portion, and a driving portion, the extension portion being disposed between the connection portion and the driving portion, the connection portion being connected to the second wire member, and the driving portion being adapted to drive the trip member. In some embodiments, the drive portion is spaced apart from the trip member without deformation of the second bimetal. In some embodiments, the connection is welded to the second wire member. In some embodiments, the extension includes a first portion, a second portion, and a third portion disposed between the first portion and the second portion, the first portion being connected to and bent with respect to the connection portion, and the second portion being connected to and bent with respect to the drive portion. In some embodiments, the third portion comprises a single segment or a plurality of segments that are bent relative to each other. In some embodiments, the first portion and the second portion are bent toward the same side of the third portion, and the first portion and the second portion are each disposed at a predetermined angle with respect to the third portion. In some embodiments, the electrical switch comprises a circuit breaker. It should be understood that what is described in this section is not intended to limit the key features or essential features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become apparent from the following description. Drawings The above and other features, advantages and aspects of embodiments of the present disclosure will become more apparent by reference to the following detailed description when taken in conjunction with the accompanying drawings. In the drawings, wherein like or similar reference numerals denote like or similar elements, in which: Fig. 1 illustrates a schematic structural diagram of an electrical switch according to some embodiments of the present disclosure; fig. 2 illustrates a partial structural schematic diagram of an electrical switch according to some embodiments of the present disclosure; Fig. 3 illustrates a schematic structural view of a second bi-metallic strip according to some embodiments of the present disclosure. Reference numerals illustrate: 100 is an electrical switch; 1 is a release fastener; 21 is a first wiring member, 22 is a second wiring member; 31 is a first connection terminal, 32 is a second connection terminal; 4 is a first bimetallic strip, 41 is a connecting strip; 5 is a second bimetal, 51 is a connecting portion, 52 is an extending portion, 521 is a first portion, 522 is a second portion, 523 is a third portion, and 53 is a driving portion; and 6