A wiring terminal

Abstract

The utility model provides a kind of terminal, and the purpose is to solve the technical problems of existing terminal wire core insertion difficulty, easy damage, and low installation efficiency.The terminal includes a one-end open cylinder and a connecting part provided at the closed end of the cylinder;Wherein, the cylinder includes a connecting section and a guide port, one end of the connecting section is closed, the other end is connected to the guide port, and the guide port is gradually outwardly expanded from one end of the connecting section.The utility model adds a guide port, and the inner diameter of the guide port gradually decreases from the port to the inside of the connecting section, making the cylinder port flared, which can effectively guide the cable core to align and enter the inside of the cylinder easily and accurately, solving the problem of jamming and skewing when inserting the traditional straight cylinder port, significantly reducing the installation difficulty and required time, and improving the installation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of cable terminal block technology, and in particular to a terminal block. Background Technology

[0002] In the field of electrical connections, round cable lugs are key components for achieving stable connections between cables and electrical equipment. Traditional round cable lugs typically have a simple, straight cylindrical cable core opening. In practice, operators must precisely and forcefully align the cable core with this opening before inserting it. Due to the lack of a guiding structure at the opening, the cable core is prone to jamming or misalignment during insertion. This not only wastes considerable time and effort but can also damage the cable core due to repeated attempts, thus affecting the cable's conductivity and lifespan. Furthermore, in large-scale electrical installation projects or emergency repair scenarios where installation efficiency is extremely critical, the traditional method of installing cable lugs severely restricts project progress. Summary of the Invention

[0003] In view of the above situation and to overcome the defects of the prior art, the purpose of this utility model is to provide a terminal block that solves the technical problems of difficult insertion of wire cores, easy damage, and low installation efficiency of existing terminal blocks.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A terminal block includes: a cylindrical body with one open end; and a connecting portion disposed at the closed end of the cylindrical body; wherein the cylindrical body includes a connecting section and a guide opening, one end of the connecting section is closed, and the other end is connected to the guide opening, and the guide opening gradually expands outward from one end of the connecting section.

[0006] This invention adds a guide port, the inner diameter of which gradually decreases from the port to the inside of the connecting section, making the cylinder port flared. This effectively guides the cable core to easily and accurately align and enter the cylinder, solving the problem of jamming and skew when inserting a traditional straight cylinder. This significantly reduces the installation difficulty and time required, and improves installation efficiency.

[0007] Optionally, the inner wall of the cylinder is provided with a textured structure. The textured structure can greatly increase the contact area and contact pressure between the wire and the inner wall of the connector lug, effectively reduce contact resistance, reduce heat generation, and significantly enhance connection reliability.

[0008] Optionally, the textured structure is a continuously extending spiral thread. The rotating thread structure increases the contact area between the cable core and the connector lug several times over, effectively reducing contact resistance, minimizing heat generation, and significantly enhancing connection reliability.

[0009] Optionally, the inner wall of the connecting section is provided with multiple fixing protrusions, which are distributed circumferentially along the inner cavity of the connecting section. The fixing protrusions can play a reinforcing role, thereby ensuring that the connection remains stable during long-term use, greatly reducing the failure rate of connection loosening, and significantly improving the safety and stability of electrical system operation.

[0010] Optionally, multiple fixed protrusions are positioned near the closed end of the connecting segment, and the textured structure is positioned near the guide opening.

[0011] Optionally, the inner surface of the guide port and / or the contact surface of the connecting section are coated with an anti-oxidation conductive coating. An anti-oxidation conductive coating helps extend service life and reduce equipment maintenance frequency and costs.

[0012] Optionally, the anti-oxidation conductive coating is a nano-silver coating.

[0013] Optionally, the cylinder and the connecting part can be detachably connected.

[0014] Optionally, the connecting part includes a connecting platform connected to the closed end of the cylinder, and a first connector and a second connector spaced apart on the connecting platform. The first connector has a trapezoidal cross-section, and the second connector has a semi-circular cross-section. In use, the thread specification and the size of the flared guide opening can be adjusted to adapt the wiring lug to the connection requirements of various special cables, enabling it to perform well in complex and varied electrical environments, thus expanding its applicability and broadening its application scenarios.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention incorporates a guide opening with an inner diameter that gradually decreases from the port towards the interior of the connection section, creating a flared shape at the cylinder port. This flared design facilitates easy and convenient cable insertion, effectively reducing installation difficulty and time, and improving installation efficiency. Furthermore, the textured structure of the cylinder's inner wall significantly increases the contact area and pressure between the wire and the inner wall of the connector lug, effectively reducing contact resistance, minimizing heat generation, and significantly enhancing connection reliability. Simultaneously, the added fixing protrusion provides reinforcement, ensuring the connection remains stable during long-term use, greatly reducing the failure rate of loose connections, and significantly improving the safety and stability of the electrical system. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a side view of the fixed protrusion in this utility model.

[0020] Figure 3 This is a side view of the connecting part in this utility model.

[0021] Reference numerals: 1. Cylinder body; 11. Connecting section; 12. Guide port; 13. Textured structure; 14. Fixing protrusion;

[0022] 2. Connecting part; 21. Connecting platform; 22. First connector; 23. Second connector. Detailed Implementation

[0023] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the embodiments of this utility model application. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0024] In the description of the embodiments of this utility model application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", "end", "side" etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, are only for the convenience of describing the embodiments of this utility model application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of this utility model application.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model application, "multiple" means two or more, unless otherwise explicitly specified.

[0026] In the embodiments of this utility model application, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model application according to the specific circumstances.

[0027] In the embodiments of this utility model application, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] The following disclosure provides many different implementations or examples for carrying out different structures of the embodiments of this utility model application. To simplify the disclosure of the embodiments of this utility model application, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of this utility model application. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of this utility model application; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0029] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0030] like Figures 1-3 As shown in the figure, an embodiment of this utility model application provides a terminal block, including a cylindrical body 1 and a connecting part 2. One end of the cylindrical body 1 is a closed end, and the other end has an opening. The connecting part 2 is disposed at the closed end of the cylindrical body 1.

[0031] The cylinder 1 includes a connecting section 11 and a guide port 12 located at the open end. One end of the connecting section 11 is closed, and the other end is connected to the guide port 12. The guide port 12 is gradually expanded outward from one end of the connecting section, that is, the inner diameter of the guide port 12 gradually decreases from the outer port to the inside of the connecting section 11.

[0032] By setting the cylindrical port in a horn-shaped structure, the cable core can be easily and accurately aligned and inserted into the cylindrical body, solving the problems of jamming and skewness that easily occur when inserting a traditional straight cylindrical port. This greatly reduces the difficulty and time required for installation and improves installation efficiency.

[0033] Furthermore, the inner wall of the cylinder 1 is provided with a textured structure 13 to increase the contact area with the wire. The textured structure can greatly increase the contact area and contact pressure between the wire and the inner wall of the connector, effectively reducing contact resistance and heat generation.

[0034] Optionally, the texture structure 13 is a continuously extending spiral thread, i.e., a rotating thread structure is provided on the inner wall of the cylinder 1. Optionally, the thread is a self-tapping thread or a pre-fabricated internal thread. The spiral thread structure provides a continuous and uniform tightening force. When the wire is screwed in, the thread can better engage and accommodate the wire, making the stress distribution more uniform, the connection tighter and stronger, and further ensuring the long-term stability of the mechanical strength and electrical performance of the connection.

[0035] In one embodiment, the inner wall of the connecting section 11 is provided with a plurality of fixing protrusions 14, which are distributed circumferentially along the inner cavity of the connecting section 11. The plurality of fixing protrusions 14 can forcefully press the surface of the conductor from multiple points, and the fixing protrusions 14 can play a reinforcing role, thereby ensuring that the connection remains stable during long-term use, greatly reducing the failure rate of connection loosening, and greatly improving the safety and stability of electrical system operation.

[0036] Optionally, multiple fixed protrusions 14 are positioned near the closed end of the cylinder 1, and the textured structure 13 is positioned near the guide port 12. Specifically, the textured structure 13 is located between the fixed protrusions 14 and the guide port 12, with gaps between the fixed protrusions 14 and the inner wall of the closed end of the cylinder 1, and gaps between the textured structure 13 and both the fixed protrusions 14 and the guide port 12. This layout optimizes the allocation of functions. The textured structure 13 near the guide port 12 is primarily responsible for initial screw-in guidance and securing the main contact surfaces, while the fixed protrusions 14 near the connecting part 2 serve as the final locking and anti-detachment guarantee, making the connection process smoother and the final connection effect more reliable.

[0037] Optionally, there are four fixed protrusions 14, and the four fixed protrusions 14 are set at equal intervals.

[0038] In one embodiment, the inner surface of the guide port 12 and / or the contact surface of the connecting section 11 are coated with an anti-oxidation conductive coating. In harsh industrial environments (such as high humidity, high dust, and corrosive gas environments), ordinary connector lugs may experience poor contact due to oxidation within six months. This embodiment extends the service life of the connector lug with an anti-oxidation conductive coating, reducing equipment maintenance frequency and costs.

[0039] Optionally, the anti-oxidation conductive coating is a nano-silver coating. The nano-silver coating not only has excellent conductivity, further reducing contact resistance, but also effectively prevents oxidation of the metal surface, extending the service life of the connector lugs.

[0040] In one embodiment, the cylinder 1 and the connecting part 2 are detachably connected. This allows the structural design of the wiring lug to have better compatibility with cables of different diameters and materials. By adjusting the thread specifications and the size of the flared guide opening, it can adapt to the connection needs of various special cables, enabling them to perform well in complex and ever-changing electrical environments, thus expanding the scope of application and broadening the application scenarios.

[0041] In one embodiment, the connecting segment 11 and the guide port 12 are integrally formed. In another embodiment, the connecting segment 11 and the guide port 12 may also be detachably connected.

[0042] In one embodiment, the connecting portion 2 includes a connecting platform 21 connected to the closed end of the cylinder 1, and a first connector 22 and a second connector 23 spaced apart on the connecting platform 21. The first connector 22 has a trapezoidal cross-section, and the second connector 23 has a semi-circular cross-section. The nose formed by this connecting portion can be fixed with a conductor bolt. Optionally, the connecting platform 21 is detachably connected to the connecting section. Of course, in other embodiments, the connecting portion 2 can also adopt an existing annular, fork-shaped, or plate-shaped structure.

[0043] It should be noted that, Figure 1 The texture structure shown is for illustrative purposes only. The specific location of the texture structure and fixed protrusions is also adaptive. Furthermore, any aspects not described in detail in this embodiment are techniques well-known in the art.

[0044] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A terminal block, characterized in that, include: A cylindrical body open at one end; as well as A connecting portion is provided at the closed end of the cylinder; The cylinder includes a connecting section and a guide port. One end of the connecting section is closed, and the other end is connected to the guide port. The guide port gradually expands outward from one end of the connecting section. The inner wall of the cylinder is provided with a textured structure, which is a spirally continuous thread. The inner wall of the connecting section is provided with multiple fixed protrusions, which are distributed circumferentially along the inner cavity of the connecting section. Multiple fixed protrusions are positioned near the closed end of the connecting section, and the textured structure is positioned near the guide opening; The inner surface of the guide port and / or the contact surface of the connecting section are coated with an anti-oxidation conductive coating, which is a nano-silver coating. The cylinder and the connecting part are detachably connected; The connecting part includes a connecting platform connected to the closed end of the cylinder, and a first connector and a second connector spaced apart on the connecting platform. The first connector has a trapezoidal cross-section, and the second connector has a semi-circular cross-section.

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