Wiring structure of circuit breaker

Abstract

Provided is a wiring structure of a circuit breaker. The circuit breaker mainly solves the problem that the internal structure of a conventional circuit breaker is tedious. The wiring piece (5) comprises a first section (51) which is used for being connected with the bimetallic strip; the second section (52) is formed by bending the first section, and part of the second section is arranged in the wiring frame and is used for being matched with the wiring frame to realize wiring; and the third section (53) is formed by bending the second end and is used for being electrically connected with the moving contact. The utility model provides a wiring structure of a circuit breaker, which is provided with an integrated power connection sheet, can be directly and electrically connected with a bimetallic strip during wiring, reduces the number of internal parts, and is more compact in structure.

Description

Technical Field

[0001] The utility model relates to the field of circuit breakers, in particular to a wiring structure of a circuit breaker. Background Art

[0002] A circuit breaker is a switching device used to cut off and connect load circuits, as well as to cut off fault circuits to prevent accidents from expanding, thereby ensuring the safe operation of load circuits.

[0003] Currently, circuit breakers are mostly provided with multiple internal power connection parts, such as the connection between the power connection piece of the wiring frame and the bimetallic piece, which makes the structure more complicated. Utility Model Content

[0004] In order to overcome the shortcomings of the background technology, the utility model provides a wiring structure of a circuit breaker, which mainly solves the problem that the internal structure of a conventional circuit breaker is relatively complicated.

[0005] The technical solution of the utility model is:

[0006] A wiring structure of a circuit breaker, comprising a housing, wherein the housing is provided with a moving contact, a wiring frame and a bimetallic sheet, and further comprising

[0007] An integrally manufactured terminal lug comprising

[0008] The first section is used to connect with the bimetallic strip;

[0009] The second section is formed by bending the first section, and part of it is arranged in the wiring frame to cooperate with the wiring frame to realize wiring;

[0010] The third section is formed by bending the second end and is used for electrically connecting to the moving contact.

[0011] A limiting wall is arranged inside the shell, and an empty slot for installing the wiring frame is formed between the limiting wall and the side wall of the shell. A through slot for part of the third section to pass through is arranged on the limiting wall.

[0012] A slot is provided on the inner wall of the shell, and plugs are provided on both sides of the wiring piece to limit the slot.

[0013] The wiring frame is connected with screws, and the third section is provided with an avoidance groove for the screws to pass through.

[0014] The screw comprises a cap portion, and a first wiring slot for installing a wire is provided between the cap portion and the third section.

[0015] A plurality of protrusions are arranged on the opposite surfaces of the third section and the cap portion.

[0016] A second wiring groove for installing wires is formed between the second section and the inner wall of the wiring frame.

[0017] The beneficial effects of the utility model are as follows: the utility model provides a wiring structure of a circuit breaker, which has an integrated power connection piece, and can be directly electrically connected to the bimetallic strip while wiring, thereby reducing the number of internal parts and making the structure more compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the utility model.

[0019] Figure 2 It is a partial three-dimensional schematic diagram of an embodiment of the utility model.

[0020] Figure 3 It is a partial three-dimensional schematic diagram of an embodiment of the utility model.

[0021] Figure 4 The figure is a three-dimensional schematic diagram of a wiring piece according to an embodiment of the utility model.

[0022] Figure 5 It is a partial three-dimensional schematic diagram of an embodiment of the utility model. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings: As shown in the figure, a wiring structure of a circuit breaker includes a housing 1, the housing is provided with a moving contact 2, a wiring frame 3 and a bimetallic strip 4, and also includes an integrally made wiring strip 5, which includes a first section 51 for connecting with the bimetallic strip; a second section 52, formed by bending the first section, part of which is arranged in the wiring frame for cooperating with the wiring frame to achieve wiring; a third section 53, formed by bending the second end, for electrically connecting with the moving contact. The third section is connected to the moving contact through a wire, and how the second section is connected to the wiring frame is a prior art and will not be repeated. The first section and the bimetallic strip can be welded, and the bending mentioned here can be direct bending or multi-section bending.

[0024] In this embodiment, as shown in the figure, a limiting wall 11 is provided in the housing, and an empty slot 12 for installing the wiring frame is formed between the limiting wall and the side wall of the housing, and a through slot 111 is provided on the limiting wall for part of the third section to pass through. The wiring frame is installed in the empty slot, which is the same as the conventional technology, except that a through slot is provided on the limiting wall for the third section to extend out and connect with the moving contact through the wire.

[0025] In this embodiment, as shown in the figure, the inner wall of the housing is provided with a slot 13, and the two sides of the wiring piece are provided with inserting pieces 54 that cooperate with the slot to limit the position. After the wiring piece is inserted into the slot, it plays a role of limiting the position, so that it will not move up and down.

[0026] In this embodiment, as shown in the figure, the wiring frame is connected with a screw 6, and the third section is provided with an avoidance groove 531 for the screw to pass through.

[0027] In this embodiment, as shown in the figure, the screw includes a cap 61, and a first wiring slot 611 for installing the wire is provided between the cap and the third section. When the wiring frame rises to the top, continuing to rotate the screw will cause the screw to descend and compress the wire (the first wiring slot will become smaller). The screw and the wiring frame are threadedly connected, and the rotation of the screw will drive the wiring frame to rise (because the wiring frame is limited by the housing and cannot rotate but can only be raised and lowered). This is a prior art and will not be described in detail.

[0028] In this embodiment, as shown in the figure, a plurality of protrusions 533 are provided on the surface opposite to the cap portion to better fix the wire.

[0029] In this embodiment, as shown in the figure, a second wiring groove 521 for installing the wire is formed between the second section and the inner wall of the wiring frame. In this way, the current can be divided after passing through the moving contact, one way flows out from the wiring of the third section, and the other way flows out from the wiring of the second section, which can reduce the temperature rise. Correspondingly, a wire groove is opened on the housing for the wire to pass through.

[0030] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] The embodiments described with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention. The embodiments should not be regarded as limiting the present invention, but any improvements based on the spirit of the present invention should be within the scope of protection of the present invention.

Claims

1. A wiring structure of a circuit breaker, comprising a housing (1), wherein the housing is provided with a moving contact (2), a wiring frame (3) and a bimetallic strip (4), wherein: Also includes An integrally manufactured terminal piece (5) comprising A first section (51) is used to connect with the bimetallic strip; The second section (52) is formed by bending the first section, and is partially disposed in the wiring frame for cooperating with the wiring frame to realize wiring; The third section (53) is formed by bending the second end and is used for being electrically connected to the moving contact.

2. The wiring structure of a circuit breaker according to claim 1, characterized in that: A limiting wall (11) is provided in the shell, a hollow groove (12) for installing the wiring frame is formed between the limiting wall and the shell side wall, and a through groove (111) for part of the third section to pass through is provided on the limiting wall.

3. The wiring structure of a circuit breaker according to claim 2, characterized in that: A slot (13) is provided on the inner wall of the housing, and inserting pieces (54) that cooperate with the slot in a limiting manner are provided on both sides of the wiring piece.

4. A wiring structure of a circuit breaker according to claim 3, characterized in that: The wiring frame is connected to a screw (6), and the third section is provided with an avoidance groove (531) for the screw to pass through.

5. A wiring structure of a circuit breaker according to claim 4, characterized in that: The screw comprises a cap portion (61), and a first wiring slot (611) for installing a wire is provided between the cap portion and the third section.

6. A wiring structure of a circuit breaker according to claim 5, characterized in that: A plurality of protrusions (533) are provided on the surfaces opposite to the third section and the cap portion.

7. The wiring structure of a circuit breaker according to claim 1, characterized in that: A second wiring groove (521) for installing a wire is formed between the second section and the inner wall of the wiring frame.

Images