Static contact of circuit breaker

Abstract

The utility model discloses a static contact of a circuit breaker, and relates to the technical field of static contacts. The contact comprises a contact body, the bottom of the contact body is provided with a bending part, one side of the bending part is provided with a static contact, one side of the top of the contact body is provided with a connecting part, and the connecting part is C-shaped; the contact further comprises a wire pressing frame, the wire pressing frame is used in cooperation with the connecting part, the side, close to the contact body, of the wire pressing frame is in threaded connection with a threaded rod, one side of the contact body is provided with a through hole used in cooperation with the threaded rod, and the inner wall of one side of the wire pressing frame is provided with a plurality of strip-shaped protruding strips used for wire pressing. According to the utility model, the connecting part is arranged on the contact body and is matched with the wire pressing frame for use, so that when a circuit is clamped and fixed, the threaded rod can be prevented from being propped against the contact body, the damage to the contact body when the contact body is connected with the circuit is reduced, and meanwhile, the contact body can be positioned through the positioning rod; and the installation stability of the contact body is improved by matching with a bolt.

Description

Technical Field

[0001] This utility model belongs to the field of stationary contact technology, and in particular relates to a stationary contact for a circuit breaker. Background Technology

[0002] Circuit breakers are common in daily life. A circuit breaker is a switching device that can close, carry and interrupt current under normal circuit conditions and close, carry and interrupt current under abnormal circuit conditions within a specified time.

[0003] The use of circuit breakers is inseparable from their stationary and moving contacts. When both sides are connected, the circuit is open or closed; otherwise, the circuit is closed. During installation, the static contact is usually connected to the circuit. The connection is mostly achieved by bolts that push the static contact together with the circuit to achieve energization. However, when the bolts come into contact with the stationary contact and apply pressure, the stationary contact is easily damaged. Therefore, a circuit breaker stationary contact design is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a stationary contact for a circuit breaker. A connecting part is installed on the contact body and used in conjunction with a wire clamping frame. This prevents the threaded rod from contacting the contact body when clamping and fixing the line, reducing damage to the contact body when connecting to the line. At the same time, the contact body can be positioned by a positioning rod, and the stability of the contact body installation is increased by bolts, thus solving the existing technical problems.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] A circuit breaker stationary contact includes: a contact body, a bent portion at the bottom of the contact body, a stationary contact point installed on one side of the bent portion, and a connecting portion on one side of the top of the contact body, the connecting portion being C-shaped;

[0007] It also includes a wire clamping frame, which is used in conjunction with a connecting part. The wire clamping frame has a threaded rod threadedly connected to the side of the contact body near the contact body. A through hole is opened on one side of the contact body to cooperate with the threaded rod. The connecting part is installed on the contact body and cooperates with the wire clamping frame, so that when the line is clamped and fixed, the threaded rod can be prevented from contacting the contact body, reducing damage to the contact body when connected to the line.

[0008] As a further improvement of this utility model, a plurality of strip-shaped protrusions for pressing wires are provided on one side of the inner wall of the wire pressing frame, and a plurality of strip-shaped grooves that cooperate with the protrusions are provided on one side of the connecting part. The cooperation between the protrusions and the grooves increases the stability of the circuit connection.

[0009] As a further scheme of the utility model, at least one through fixing hole is arranged on one side of the contact body for fixing the contact body.

[0010] As a further scheme of the utility model, at least one positioning rod for positioning the contact body is arranged on one side of the contact body, and the positioning rod is arc-shaped at one end, so that the contact body can be positioned by the positioning rod, and the stability of the contact body installation is increased by cooperating with the bolt.

[0011] As a further scheme of the utility model, protrusions are arranged on both sides of the contact body.

[0012] In the application, the connecting part on the contact body is inserted into the wire pressing frame, and then the contact body is fixed in the shell of the circuit breaker. When fixed, the positioning rod is inserted into the shell, and then the contact body is installed in the shell by passing through the bolt in the fixing hole. The stability of the contact body installation is increased by the positioning rod. Then the line is inserted between the wire pressing frame and the connecting part, the threaded rod is rotated, the threaded rod is rotationally arranged on the shell, so that the wire pressing frame is close to the connecting part, and the line is clamped and fixed. The threaded rod is prevented from being in contact with the contact body, and the damage to the contact body when connected with the line is reduced.

[0013] The embodiments of the utility model have the following beneficial effects:

[0014] In the utility model, the connecting part is arranged on the contact body and used in cooperation with the wire pressing frame, so that the line is inserted between the wire pressing frame and the connecting part, the wire pressing frame is close to the connecting part by rotating the threaded rod, the line is clamped and fixed, the threaded rod is prevented from being in contact with the contact body, and the damage to the contact body when connected with the line is reduced.

[0015] In the utility model, the positioning rod is arranged on one side of the contact body, so that the contact body can be positioned by the positioning rod when the contact body is installed, and the stability of the contact body installation is increased by cooperating with the bolt.

[0016] In the utility model, the connecting part is arranged on the contact body and used in cooperation with the wire pressing frame, so that the line is clamped and fixed, the threaded rod is prevented from being in contact with the contact body, the damage to the contact body when connected with the line is reduced, the contact body can be positioned by the positioning rod, and the stability of the contact body installation is increased by cooperating with the bolt.

[0017] Of course, it is not necessary to achieve all the advantages mentioned above when implementing any product of the utility model. DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed for the embodiment description. Obviously, the drawings in the following description are only some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0019] Figure 1 It is a first perspective three-dimensional structure schematic view of an embodiment of the present application.

[0020] Figure 2 It is a second perspective three-dimensional structure schematic view of an embodiment of the present application.

[0021] Figure 3 It is a cross-sectional structure schematic view of an embodiment of the present application.

[0022] In the figure: 1, contact body; 2, bending part; 3, static contact; 4, fixing hole; 5, wire pressing frame; 6, protruding block; 7, positioning rod; 8, through hole; 9, threaded rod; 10, connecting part; 11, groove; 12, protruding strip. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0024] In the description of the present application, it should be understood that the terms "opening", "upper", "middle", "length", "inner" and the like indicate the orientation or positional relationship, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated components or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0025] In order to keep the following description of the embodiments of the present application clear and concise, the present application omits the detailed description of known functions and known components.

[0026] Embodiment one

[0027] Please refer to Figures 1-3 In the present embodiment, a circuit breaker static contact is provided, which comprises: a contact body 1, the bottom of the contact body 1 is provided with a bending part 2, one side of the bending part 2 is provided with a static contact 3, one side of the top of the contact body 1 is provided with a connecting part 10, the connecting part 10 is provided in a C shape, and a gap is provided between the bottom of the connecting part 10 and the contact body 1.

[0028] Further comprising a wire pressing frame 5, the wire pressing frame 5 is used in cooperation with the connecting part 10, the wire pressing frame 5 is threadedly connected with a threaded rod 9 on one side of the contact body 1, and a through hole 8 matched with the threaded rod 9 is formed on one side of the contact body 1, the wire is inserted between the wire pressing frame 5 and the connecting part 10, the threaded rod 9 is rotatably arranged with the shell, and then the wire pressing frame 5 is close to the connecting part 10, so that the wire is clamped and fixed, and the threaded rod 9 is prevented from being in contact with the contact body 1, thereby reducing the damage to the contact body 1 when connected with the wire.

[0029] Embodiment two

[0030] On the basis of the first embodiment, refer to the attached Figures 1-3 ,

[0031] Referring to Figure 3 , a plurality of strip-shaped convex strips 12 for pressing the wire are arranged on the inner wall of one side of the wire pressing frame 5, and a plurality of strip-shaped grooves 11 matched with the convex strips 12 are arranged on one side of the connecting part 10, the stability of clamping the wire is increased through the cooperation of the convex strips 12 and the grooves 11.

[0032] Referring to Figure 1 , at least one through fixing hole 4 for fixing the contact body 1 is formed on one side of the contact body 1, and the fixing hole 4 is used for fixing the contact body 1 in the shell of the circuit breaker through a screw.

[0033] Referring to Figure 2 , at least one positioning rod 7 for positioning the contact body 1 is arranged on one side of the contact body 1, one end of the positioning rod 7 is arc-shaped, and the positioning rod 7 is inserted into the shell, so that the stability of the installation of the contact body 1 is increased through the positioning rod 7.

[0034] Referring to Figure 2 , protrusions 6 are arranged on both sides of the contact body 1, and the protrusions 6 are matched with the shell to further increase the stability of the contact body 1.

[0035] It should be noted that in the description of the present specification, the description such as "first", "second" and the like is only used to distinguish the characteristics, and does not have the actual order or pointing meaning, and the present application is not limited thereto.

[0036] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The preferred embodiments disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific embodiments described. Obviously, according to the content of the description, many modifications and changes can be made. The description selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A circuit breaker stationary contact, characterized by, Include: The bottom of the contact body (1) is provided with a bending part (2), one side of the bending part (2) is provided with a static contact (3), and one side of the top of the contact body (1) is provided with a connecting part (10), which is provided with a C type; It also includes a wire pressing frame (5) which is used in cooperation with the connecting part (10), and a threaded rod (9) is threadedly connected to one side of the wire pressing frame (5) close to the contact body (1), and a through hole (8) is formed in one side of the contact body (1) for cooperation with the threaded rod (9); One side of the wire pressing frame (5) is provided with a plurality of strip-shaped convex strips (12) for pressing wires, and one side of the connecting part (10) is provided with a plurality of strip-shaped grooves (11) for cooperation with the convex strips (12); At least one positioning rod (7) is mounted on one side of the contact body (1) for positioning the contact body (1), and one end of the positioning rod (7) is arc-shaped; The two sides of the contact body (1) are provided with protrusions (6).

2. A stationary contact for a circuit breaker as defined in claim 1, characterized in that At least one through fixing hole (4) is formed in one side of the contact body (1) for fixing the contact body (1).

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