CN117293567A - Binding post and circuit breaker - Google Patents

Abstract

The invention discloses a wiring terminal and a circuit breaker, wherein the wiring terminal comprises a shell, a spring clamp, a conductive piece and a sliding piece, the shell comprises a limiting part and an elastic arm connected with the limiting part, the fixed end of the spring clamp is fixedly contained in the limiting part, the movable end of the spring clamp is abutted against the elastic arm when the elastic arm is in an initial state, the conductive piece is fixedly arranged in the shell and is matched with the elastic arm, when a wire is inserted into the shell, the wire enables the elastic arm to move in a direction away from the spring clamp, meanwhile, the movable end of the spring clamp is separated from the elastic arm and moves in a direction approaching to the conductive piece so as to lock the wire, the sliding piece is arranged in the shell and can move, and the sliding piece can drive the movable end of the spring clamp to deform in a direction approaching to the limiting part. The wiring terminal solves the problem that the existing wiring terminal needs to be connected with a wire by an auxiliary tool to cause complicated wiring. And the structure is simple, and the operation is convenient.

Description

Binding post and circuit breaker

Technical Field

The invention relates to the field of piezoelectric devices, in particular to a wiring terminal and a circuit breaker.

Background

The circuit breaker is a switching device capable of conducting, carrying and breaking a current under normal loop conditions and conducting, carrying and breaking a current under abnormal loop conditions within a prescribed time, and can distribute electric energy and protect a power line, a motor and the like, and automatically cut off a circuit when serious overload or short circuit, undervoltage and other faults occur, so that the circuit breaker is widely applied to power electronic systems.

In order to connect the main circuit and the external circuit, the plug-in circuit breaker for the 5G communication cabinet is generally provided with a wiring terminal connected with an external wire. One of the existing solutions is a spring plate type wiring mode, when a wire is connected, an auxiliary tool is needed to be used for inserting a wiring terminal to push away the spring plate, after the wire is inserted, the auxiliary tool is pulled out, and the spring plate compresses the wire under the action of elasticity. Because the access of the lead can be completed only by means of an auxiliary tool, the wiring operation is complicated.

Disclosure of Invention

The invention aims to provide a wiring terminal and a circuit breaker.

The technical scheme adopted for solving the technical problems is as follows: a terminal is constructed, comprising:

a housing including a defining portion and an elastic arm connected to the defining portion;

the fixed end of the spring clamp is fixedly accommodated in the limiting part, and the movable end of the spring clamp is abutted against the elastic arm when the elastic arm is in an initial state;

the conductive piece is fixedly arranged in the shell and is matched with the elastic arm, and the conductive piece is used for being electrically connected with a wire inserted into the shell, wherein when the wire is inserted into the shell, the wire enables the elastic arm to move in a direction away from the spring clamp, and meanwhile the movable end of the spring clamp is separated from the elastic arm and moves in a direction close to the conductive piece so as to lock the wire;

the sliding piece is arranged in the shell and can move, and the sliding piece can drive the movable end of the spring clamp to deform in the direction close to the limiting part.

In some embodiments, the elastic arm includes a connecting portion fixedly connected with the limiting portion and a movable portion disposed perpendicular to the connecting portion, the conductive member includes a first positioning portion and a second positioning portion disposed perpendicular to each other, and the movable portion has a first side wall disposed toward the first positioning portion and a second side wall disposed opposite to the first side wall;

when the wire is inserted into the shell, the wire is abutted to the second side wall and drives the first side wall to be abutted to the first positioning part, and meanwhile, the movable end of the spring clamp fixes the wire on the second positioning part.

In some embodiments, the elastic arm is integrally formed with the limiting portion, and the connection between the connecting portion and the movable portion is a circular arc connection.

In some embodiments, the second side wall is further provided with a lap joint part, the lap joint part is provided with a lap joint wall used for abutting against the movable end of the spring clip when the elastic arm is in an initial state, and the lap joint wall is perpendicular to the second side wall;

when the first side wall abuts against the first positioning portion, a preset gap is reserved between the outer wall of the lap joint wall and the end face of the movable end of the spring clamp.

In some embodiments, the housing further includes a first base for mounting the second positioning portion and a second base for mounting the slider, the first base is disposed on a side of the second base facing the elastic arm, and a set height of the first base is lower than a set height of the second base.

In some embodiments, the second substrate is further provided with a limiting wall for limiting the spring clip and a plurality of wire insertion holes for inserting the wires.

In some embodiments, the sliding member includes an abutting portion for abutting against the spring clip and an operating portion integrally formed with the abutting portion, the operating portion protrudes from the housing, and a guide groove is provided on the operating portion.

In some embodiments, a mounting groove for accommodating the fixed end of the spring clip is formed in the limiting portion, and the mounting groove is obliquely arranged relative to the length direction of the shell.

In some embodiments, a transition section is arranged at the opening of the mounting groove, a transition part matched with the transition section in shape is arranged in the spring clamp, and the sliding piece is abutted against the bottom side of the transition part.

In this embodiment, a circuit breaker is also constructed, which includes the above-described connection terminal.

The implementation of the invention has the following beneficial effects: the binding post includes casing, spring clamp, conducting element and slider, this casing includes limit portion and the elastic arm of being connected with limit portion, the fixed end fixed accommodation of this spring clamp is in limit portion, the loose end of spring clamp is in the initial state when the elastic arm is in the butt on the elastic arm, this conducting element is fixed to be located in the casing and set up with the elastic arm cooperation, it is used for with the wire electric connection of pegging graft in the casing, wherein, when the wire peg graft in the casing, the wire makes the elastic arm move towards the direction of keeping away from the spring clamp, simultaneously the loose end of spring clamp breaks away from the elastic arm and moves towards the direction that is close to the conducting element, with locking wire, this slider is established movably in the casing, the slider can drive the loose end of spring clamp to take place the deformation towards the direction that is close to limit portion. The wiring terminal solves the problem that the existing wiring terminal needs to be connected with the lead by means of an auxiliary tool, and is complex in wiring, simple in structure and convenient to operate.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the following description will be given with reference to the accompanying drawings and examples, it being understood that the following drawings only illustrate some examples of the present invention and should not be construed as limiting the scope, and that other related drawings can be obtained from these drawings by those skilled in the art without the inventive effort. In the accompanying drawings:

FIG. 1 is a schematic illustration of a terminal in an initial state in accordance with some embodiments of the present invention;

FIG. 2 is a schematic illustration of a terminal in an unlocked state in some embodiments of the invention;

FIG. 3 is a schematic illustration of a wire connection terminal in accordance with some embodiments of the present invention in a wired state;

FIG. 4 is a schematic illustration of a terminal in a unplugged configuration according to some embodiments of the present invention;

FIG. 5 is a schematic structural view of a housing in some embodiments of the invention;

FIG. 6 is a schematic illustration of a slider configuration in some embodiments of the present invention;

fig. 7 is a schematic view of the structure of a spring clip in some embodiments of the invention.

Detailed Description

For a clearer understanding of technical features, objects and effects of the present invention, a detailed description of embodiments of the present invention will be made with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "rear", "upper", "lower", "left", "right", "longitudinal", "transverse", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. are configured and operated in specific directions based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention, and do not indicate that the apparatus or element to be referred to must have specific directions, and thus should not be construed as limiting the present invention.

It should also be noted that unless explicitly stated or limited otherwise, terms such as "mounted," "connected," "secured," "disposed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or one or more intervening elements may also be present. The terms "first," "second," "third," and the like are used merely for convenience in describing the present invention and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defining "first," "second," "third," etc. may explicitly or implicitly include one or more such features. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1 to 7, the present invention discloses a connection terminal, which includes a housing 1, a spring clip 2, a conductive member 3 and a sliding member 5, wherein the housing 1 is used for providing a mounting base and protection for an internal structure, specifically, the housing 1 includes a limiting portion 11 and an elastic arm 12 connected with the limiting portion 11, the limiting portion 11 is mounted on an upper portion in the housing 1, the elastic arm 12 and the spring clip 2 can be made of rubber, polyurethane elastomer or other high elastic materials, the elastic arm 12 and the limiting portion 11 can be integrally formed, i.e. the whole housing 1 is integrally formed, so that cost can be effectively reduced, meanwhile, requirements of simplifying assembly are met, and the whole structure is more firm and reliable. In other embodiments, the elastic arm 12 and the limiting portion 11 may be detachably connected by a bolt, a buckle, or the like.

Referring to fig. 1 and 2, the fixed end 21 of the spring clip 2 is fixedly accommodated in the limiting portion 11, the movable end 22 of the spring clip 2 abuts against the spring arm 12 when the spring arm 12 is in the initial state, the spring arm 12 is in the compressed state when the spring arm 12 is in the initial state, and the spring clip 2 can be deformed in a downward direction naturally when the spring arm 12 no longer abuts against the spring clip 2.

Referring to fig. 5, the defining portion 11 is provided with a mounting groove 111 for accommodating the fixed end 21 of the spring clip 2, the mounting groove 111 is inclined with respect to the length direction of the housing 1, and in this embodiment, the mounting groove 111 is inclined downward, so as to further enhance the connection firmness between the spring clip 2 and the housing 1. The opening part of the mounting groove 111 is provided with a transition section 112, the spring clamp 2 is provided with a transition part 23 matched with the shape of the transition section 112, the transition part 23 is approximately arc-shaped, the radius of a formed transition space is similar to the thickness of the spring clamp 2, and the transition space can be in interference fit with the fixed end 21 of the spring clamp 2, so that the spring clamp 2 is well matched with the shell 1, and the reliability after connection is ensured. At the same time, the sliding piece 5 abuts against the bottom side of the transition part 23 so as to conveniently realize the control of the deformation of the movable end 22 of the spring clip 2.

In addition, the conductive member 3 is fixedly disposed in the housing 1 and is matched with the elastic arm 12, and is used for electrically connecting with the conductive wire 4 inserted into the housing 1, wherein when the conductive wire 4 is inserted into the housing 1, the conductive wire 4 makes the elastic arm 12 move away from the spring clip 2, and meanwhile, the movable end 22 of the spring clip 2 is separated from the elastic arm 12 and moves towards the direction close to the conductive member 3, so as to lock the conductive wire 4, thereby completing the electrical connection between the conductive wire 4 and the conductive member 3, and further completing the fixation of the conductive wire 4 and the connecting terminal.

In order to facilitate the extraction of the wire 4, the terminal is further provided with a sliding member 5, the sliding member 5 is arranged in the housing 1 and can move, and the sliding member 5 can drive the movable end 22 of the spring clip 2 to deform in a direction approaching the limiting part 11.

Referring to fig. 5, the elastic arm 12 includes a connecting portion 121 fixedly connected to the limiting portion 11 and a movable portion 122 perpendicular to the connecting portion 121, and the elastic arm 12 is a cantilever structure capable of elastically rotating. The conductive member 3 includes a first positioning portion 31 and a second positioning portion 32 that are disposed perpendicular to each other, the movable portion 122 has a first side wall 123 disposed towards the first positioning portion 31 and a second side wall 124 disposed opposite to the first side wall 123, when the conductive wire 4 is inserted into the housing 1, the conductive wire 4 abuts against the second side wall 124 and drives the first side wall 123 to abut against the first positioning portion 31, and meanwhile, the movable end 22 of the spring clip 2 fixes the conductive wire 4 on the second positioning portion 32.

The connection between the connection portion 121 and the movable portion 122 is a circular arc connection. The shape and the structure can resist larger external impact and stress, and the service performance and the service life of the wiring terminal are enhanced.

In addition, the second side wall 124 is further provided with a lap joint portion 125, the lap joint portion 125 is provided with a lap joint wall 126 for abutting against the movable end 22 of the spring clip 2 when the elastic arm 12 is in an initial state, the lap joint wall 126 and the second side wall 124 are vertically arranged in the initial state, when the first side wall 123 abuts against the first positioning portion 31, the outer wall of the lap joint wall 126 has a predetermined gap with the end face of the movable end 22 of the spring clip 2, and the predetermined gap can enable the movable end 22 of the spring clip 2 to be pressed downwards without being blocked under the condition that the elastic arm 12 abuts against the first positioning portion 31, so that the wire 4 is tightly fixed in the housing 1. When the elastic arm 12 is restored, the movable end 22 of the spring clip 2 can be driven by the sliding member 5, so that the movable end 22 of the spring clip 2 abuts against the overlapping wall 126, and at this time, the spring clip 2 no longer clamps the wire 4, so that an operator can easily pull out the wire 4.

In this embodiment, the housing 1 further includes a first base 13 for mounting the second positioning portion 32 and a second base 14 for mounting the sliding member 5, where the second positioning portion 32 may be fixed on the first base 13 by a bolt fastening manner, and the sliding member 5 may be movable on the second base 14. The first base 13 is disposed on a side of the second base 14 facing the elastic arm 12, and the disposed height of the first base 13 is lower than the disposed height of the second base 14, the space between the first base 13 and the second base 14 is used for inserting the wire 4, and the wire 4 is inserted through the second base 14 and then enters into the upper space of the first base 13 and is fixed by the movable end 22 of the spring clip 2.

The second base 14 is further provided with a limiting wall 141 for limiting the spring clip 2, and when the sliding piece 5 does not press the spring clip 2, the limiting wall 141 is used for limiting the spring clip 2. In addition, the second substrate 14 is further provided with a plurality of wire insertion holes 142 for inserting the wires 4, the wires 4 can enter the upper space of the first substrate 13 through the wire insertion holes 142, and in this embodiment, the number of the wire insertion holes 142 can be two, and two wires 4 can be inserted simultaneously.

Further, the slider 5 includes an abutting portion 51 for abutting against the spring clip 2 and an operation portion 52 integrally formed with the abutting portion 51, the abutting portion 51 is substantially in a square plate shape, which is movable back and forth in the longitudinal direction of the housing 1 on the second base 14, the operation portion 52 is provided to protrude from the housing 1, a guide groove 521 is provided on the operation portion 52, and when the wire 4 is to be pulled out, the movable end 22 of the spring clip 2 is overlapped again on the overlap wall 126 of the stopper arm by utilizing the guide groove 521 on the screw driver top operation portion 52 or the outer end surface of the operation portion 52, and at this time the abutting portion 51 is moved inward in the longitudinal direction of the housing 1 on the second base 14. The guide groove 521 may be disposed along a lateral direction of the operation portion 52, and may be supported on the guide groove 521 by a screwdriver for more convenient operation.

In this embodiment, a circuit breaker is also constructed, which includes the same structure and advantageous effects as the connection terminals in the foregoing embodiments. The structure of the connection terminal has been described in detail in the foregoing embodiments, and will not be described in detail herein.

In summary, the working principle of the wiring terminal is as follows: as shown in fig. 1, in the initial state, the movable end 22 of the spring clip 2 is overlapped on the overlapped wall 126 of the limiting portion 11 where the overlapped portion 125 is provided, and the spring clip 2 is in the compressed state. As shown in fig. 2, when the wire 4 is inserted into the wire insertion hole 142 provided in the housing 1, the wire 4 abuts against the movable portion 122 of the elastic arm 12, and the movable end 22 of the spring clip 2 is separated from the bridging wall 126 of the elastic arm 12. As shown in fig. 3, after the movable end 22 of the spring clip 2 is separated from the bridging wall 126 of the elastic arm 12, the movable end 22 of the spring clip 2 presses the wire 4 against the conductive member 3, thereby completing the wiring. When the wire 4 is to be pulled out, the outer end face or guide groove 521 of the slider 5 is pushed by the screwdriver, and the slider 5 moves the top spring clip 2 inwardly on the second base 14 so that the movable end 22 of the spring clip 2 again engages the engagement wall 126 of the elastic arm 12, locking the spring clip 2 back to the initial state shown in fig. 1.

It can be appreciated that the wiring terminal solves the problem that the existing wiring terminal needs to be connected with the lead by an auxiliary tool, so that the wiring is complicated. And the structure is simple, and the operation is convenient.

It is to be understood that the above examples only represent preferred embodiments of the present invention, which are described in more detail and are not to be construed as limiting the scope of the invention; it should be noted that, for a person skilled in the art, the above technical features can be freely combined, and several variations and modifications can be made without departing from the scope of the invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims (10)

1. A terminal block, comprising:

a housing (1), the housing (1) comprising a limiting portion (11) and an elastic arm (12) connected to the limiting portion (11);

a spring clip (2), wherein a fixed end (21) of the spring clip (2) is fixedly accommodated in the limiting part (11), and a movable end (22) of the spring clip (2) is abutted on the elastic arm (12) when the elastic arm (12) is in an initial state;

the conductive piece (3) is fixedly arranged in the shell (1) and is matched with the elastic arm (12), and the conductive piece is used for being electrically connected with the wire (4) inserted into the shell (1), wherein when the wire (4) is inserted into the shell (1), the wire (4) enables the elastic arm (12) to move in a direction away from the spring clamp (2), and meanwhile the movable end (22) of the spring clamp (2) is separated from the elastic arm (12) and moves towards a direction close to the conductive piece (3) so as to lock the wire (4);

the sliding piece (5) is arranged in the shell (1) and can move, and the sliding piece (5) can drive the movable end (22) of the spring clamp (2) to deform in the direction close to the limiting part (11).

2. The terminal according to claim 1, wherein the elastic arm (12) comprises a connecting portion (121) fixedly connected with the limiting portion (11) and a movable portion (122) arranged perpendicular to the connecting portion (121), the conductive member (3) comprises a first positioning portion (31) and a second positioning portion (32) arranged perpendicular to each other, and the movable portion (122) has a first side wall (123) arranged toward the first positioning portion (31) and a second side wall (124) arranged away from the first side wall (123);

after the lead (4) is inserted into the shell (1), the lead (4) is abutted to the second side wall (124) and drives the first side wall (123) to be abutted to the first positioning part (31), and meanwhile the movable end (22) of the spring clip (2) fixes the lead (4) on the second positioning part (32).

3. The terminal according to claim 2, characterized in that the elastic arm (12) is integrally formed with the defining portion (11), and the connection between the connecting portion (121) and the movable portion (122) is an arc connection.

4. The terminal according to claim 2, wherein the second side wall (124) is further provided with a bridging portion (125), the bridging portion (125) is provided with a bridging wall (126) for abutting the movable end (22) of the spring clip (2) in the initial state of the spring arm (12),

when the first side wall (123) is abutted against the first positioning portion (31), a predetermined gap is formed between the outer wall of the overlap wall (126) and the end face of the movable end (22) of the spring clip (2).

5. The connection terminal according to claim 4, characterized in that the housing (1) further comprises a first base body (13) for mounting the second positioning portion (32) and a second base body (14) for mounting the slider (5), the first base body (13) is provided on a side of the second base body (14) facing the elastic arm (12), and a set height of the first base body (13) is lower than a set height of the second base body (14).

6. The connecting terminal according to claim 5, wherein the second base body (14) is further provided with a limiting wall (141) for limiting the spring clip (2) and a plurality of wire insertion holes (142) for inserting the wires (4).

7. Terminal according to claim 1, characterized in that the slider (5) comprises an abutment portion (51) for abutment with the spring clip (2) and an operating portion (52) integrally formed with the abutment portion (51), the operating portion (52) protruding from the housing (1), the operating portion (52) being provided with a guide groove (521).

8. Terminal according to claim 1, characterized in that the defining part (11) is provided with a mounting groove (111) for receiving the fixed end (21) of the spring clip (2), the mounting groove (111) being arranged obliquely with respect to the length direction of the housing (1).

9. The connecting terminal according to claim 8, characterized in that a transition section (112) is arranged at the opening of the mounting groove (111), a transition part (23) matched with the transition section (112) in shape is arranged in the spring clip (2), and the sliding piece (5) is abutted against the bottom side of the transition part (23).

10. A circuit breaker comprising a terminal according to any one of claims 1 to 9.