Wiring terminal structure

Abstract

The utility model relates to the technical field of electrical accessories, and discloses a wiring terminal structure, which comprises a static contact, a wiring chuck and a tightening screw, the wiring chuck is of a hollow structure, one end of the wiring chuck is provided with a threaded hole in threaded connection with the tightening screw, the other end of the wiring chuck is provided with a wire clamping wall, the static contact piece comprises a wiring part and a fixing part which are combined to form an L-shaped structure, the wiring part extends into the wiring chuck, and the wiring part and the wire clamping wall define a wire clamping cavity. The wiring part comprises a V-shaped wire clamping rib extending vertically, a plurality of anti-skid grooves are formed in the inner wall of the V-shaped wire clamping rib, and the tightening screw faces the outer wall of the V-shaped wire clamping rib. According to the wiring terminal structure provided by the utility model, the V-shaped wire clamping rib is formed at the wiring part of the static contact piece, so that the contact area with an external wire is increased, and the performance is improved; meanwhile, the inner wall of the V-shaped wire clamping rib is additionally provided with an anti-skid groove, so that an external wire is prevented from being pulled and loosened.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical accessories, in particular to a wiring terminal structure. Background Art

[0002] When wiring a switch socket, the wires are tightened by twisting a screw and clamping the wires with a stationary contact, or by twisting a screw to drive the terminal clamp to move and clamp the wires with the stationary contact, etc. Common problems encountered when tightening the wires include: (1) the screw breaks the wire; (2) the tightening force applied by the terminal part of the stationary contact and the terminal clamp is insufficient, causing the wire to loosen; (3) the cross-sectional area of ​​the wire in contact with the terminal part of the stationary contact is insufficient, resulting in unsatisfactory temperature rise, etc.

[0003] It can be seen that the existing technology still needs to be improved and enhanced. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a terminal block structure, aiming to solve the above-mentioned technical problems.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A terminal structure comprises a stationary contact, a terminal clamp and a tightening screw; the terminal clamp is a hollow structure, one end of the terminal clamp is provided with a threaded hole threadedly connected to the tightening screw, the other end of the terminal clamp is provided with a wire clamping wall, the stationary contact comprises a terminal portion and a fixing portion combined to form an L-shaped structure, the terminal portion extends into the terminal clamp and forms a wire clamping cavity with the wire clamping wall, the terminal portion comprises a vertically extending V-shaped wire clamping rib, the inner wall of the V-shaped wire clamping rib is provided with a plurality of anti-slip grooves, and the tightening screw faces the outer wall of the V-shaped wire clamping rib.

[0007] As a further improvement of the above technical solution, each of the anti-skid grooves is a V-shaped structure, and a plurality of the anti-skid grooves are arranged equidistantly along the vertical direction.

[0008] As a further improvement of the above technical solution, the wiring portion further includes wire clamping wings arranged on both sides of the V-shaped wire clamping rib.

[0009] As a further improvement of the above technical solution, a conductive contact is provided on the fixing portion, and two symmetrically arranged fixing notches are provided on both side edges of the fixing portion.

[0010] As a further improvement of the above technical solution, the wire clamping wall is an arc-shaped structure.

[0011] As a further improvement of the above technical solution, the head of the tightening screw is provided with a cross slot.

[0012] Beneficial effects of the utility model: Compared with the prior art, the terminal structure provided by the utility model forms a V-shaped wire clamping rib on the wiring part of the static contact piece, thereby increasing the contact area with the external wire and improving the performance; at the same time, the inner wall of the V-shaped wire clamping rib is also provided with an anti-slip groove to prevent the external wire from being pulled loose. In addition, the V-shaped wire clamping rib has a better structural strength, which prevents the wiring part of the static contact piece from being squeezed and deformed by tightening the screw during the wiring process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A three-dimensional diagram of the connection between the wiring terminal provided by the utility model and the external wire.

[0014] Figure 2 This is a three-dimensional diagram of the wiring terminal provided by the utility model in a non-wiring state.

[0015] Figure 3 This is an exploded view of the wiring terminal provided by the utility model.

[0016] Figure 4 The three-dimensional static contact Figure 1 .

[0017] Figure 5 The three-dimensional static contact Figure 2 .

[0018] Explanation of main component symbols: 1-static contact piece, 11-wiring part, 111-V-shaped wire clamping rib, 112-wire clamping wing, 113-anti-slip groove, 12-fixing part, 121-fixing notch, 2-wiring clamp, 21-wire clamping wall, 22-threaded hole, 23-wire clamping cavity, 3-tightening screw, 31-cross slot, 4-conductive contact, 5-external wire. DETAILED DESCRIPTION

[0019] The utility model provides a terminal structure. In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the protection scope of the utility model.

[0020] See also Figure 1-Figure 5The utility model provides a terminal structure, including a static contact piece 1, a wiring clamp 2 and a tightening screw 3; the wiring clamp 2 is a hollow structure, one end of the wiring clamp 2 is provided with a threaded hole 22 threadedly connected to the tightening screw 3, the other end of the wiring clamp 2 is provided with a clamping wall 21, the static contact piece 1 includes a wiring portion 11 and a fixing portion 12 combined to form an L-shaped structure, the wiring portion 11 extends into the wiring clamp 2 and forms a clamping cavity 23 with the clamping wall 21, the wiring portion 11 includes a vertically extending V-shaped clamping rib 111, the inner wall of the V-shaped clamping rib 111 is provided with a plurality of anti-slip grooves 113, and the tightening screw 3 faces the outer wall of the V-shaped clamping rib 111.

[0021] When wiring, put the external wire 5 into the wire clamping cavity 23, turn the tightening screw 3, so that the tightening screw 3 continuously squeezes the wiring part 11 of the static contact piece 1, and when the position of the tightening screw 3 remains unchanged and the static contact piece 1 is fixed, the tightening screw 3 pulls the wiring clamp 2 back, thereby driving the wire clamping wall 21 of the wiring clamp 2 to approach the wiring part 11 of the static contact piece 1, so that the wire clamping wall 21 of the wiring clamp 2 and the wiring part 11 of the static contact piece 1 jointly clamp the external wire 5 to achieve the tightening of the wire.

[0022] Compared with the prior art, the terminal structure provided by the utility model forms a V-shaped wire clamping rib 111 on the wiring portion 11 of the stationary contact piece 1, thereby increasing the contact area with the external wire 5 and improving the performance; at the same time, the inner wall of the V-shaped wire clamping rib 111 is also provided with an anti-slip groove 113 to prevent the external wire 5 from being pulled loose. In addition, the V-shaped wire clamping rib 111 has a good structural strength, which prevents the tightening of the screw 3 during the wiring process from squeezing and deforming the wiring portion 11 of the stationary contact piece 1.

[0023] Since the anti-skid groove 113 is opened along the inner wall of the V-shaped wire clamping rib 111, each anti-skid groove 113 is a V-shaped structure, and multiple anti-skid grooves 113 are arranged equidistantly along the vertical direction. The anti-skid groove 113 provides greater friction by increasing the contact area and texture, which helps to prevent the wire from sliding when clamped, thereby improving the stability and safety of the connection. In addition, the anti-skid groove 113 can reduce the pressure concentration generated between the wiring part 11 and the external wire 5, which is conducive to dispersing the pressure, avoiding damage or wear of the wire, and ensuring a firm connection between the wire and the wiring part 11, thereby improving the reliability of the overall electrical connection and reducing the failure rate caused by poor connection.

[0024] Specifically, the wiring portion 11 further includes clamping wings 112 disposed on both sides of the V-shaped clamping rib 111. The clamping wings 112 can form a wiring portion 11 with a larger wiring area together with the V-shaped clamping rib 111, thereby increasing the contact area with the external wire 5 and effectively reducing the temperature rise. In addition, the clamping wings 112 also strengthen the structural stability of the V-shaped clamping rib 111 and reduce deformation.

[0025] Preferably, the fixing portion 12 is provided with a conductive contact 4, and two symmetrically arranged fixing notches 121 are provided on both sides of the fixing portion 12. The conductive contact 4 of the stationary contact piece 1 can be connected with the conductive contact 4 of the moving contact piece to realize circuit connection. When the stationary contact piece 1 is installed, it will be placed in the switch socket, and two mounting screws will pass through the corresponding fixing notches 121 and intercept with the thread of the mounting hole of the switch socket. After tightening the mounting screws, the head of the mounting screw will fasten the stationary contact piece 1 in the switch socket.

[0026] Since the external conductor 5 has a smooth surface, by designing the wire clamping wall 21 as an arc-shaped structure, the arc-shaped wire clamping wall 21 better adapts to the smooth surface of the conductor, obtains more contact area, improves the covering performance, and prevents the conductor from loosening after connection.

[0027] Preferably, the head of the tightening screw 3 is provided with a cross slot 31, and the tightening screw 3 can be screwed by a cross screwdriver. Of course, the tightening screw 3 can also be a hexagon socket screw, which can be screwed by a hexagonal wrench.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and the utility model concept of the utility model, and all these changes or substitutions should fall within the protection scope of the utility model.

Claims

1. A terminal structure, characterized in that: It includes a static contact piece, a wiring clamp and a tightening screw; the wiring clamp is a hollow structure, one end of the wiring clamp is provided with a threaded hole threadedly connected to the tightening screw, the other end of the wiring clamp is provided with a wire clamping wall, the static contact piece includes a wiring portion and a fixing portion combined to form an L-shaped structure, the wiring portion extends into the wiring clamp and forms a wire clamping cavity with the wire clamping wall, the wiring portion includes a vertically extending V-shaped wire clamping rib, the inner wall of the V-shaped wire clamping rib is provided with a plurality of anti-slip grooves, and the tightening screw faces the outer wall of the V-shaped wire clamping rib.

2. The terminal structure according to claim 1, characterized in that: Each of the anti-skid grooves is a V-shaped structure, and a plurality of the anti-skid grooves are arranged equidistantly along the vertical direction.

3. The terminal structure according to claim 1, characterized in that: The wiring portion also includes wire clamping wings arranged on both sides of the V-shaped wire clamping rib.

4. The terminal structure according to claim 1, characterized in that: The fixing portion is provided with a conductive contact, and two symmetrically arranged fixing notches are provided on both sides of the fixing portion.

5. The terminal structure according to claim 1, characterized in that: The line clamping wall is an arc-shaped structure.

6. The terminal structure according to claim 1, characterized in that: The head of the tightening screw is provided with a cross slot.

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