Wiring terminal structure

Abstract

The utility model belongs to the technical field of low-voltage electric appliance wiring, and discloses a wiring terminal structure. The wiring terminal structure comprises a construction plate and a pressing piece, the construction plate is of a frame structure, the inner side of the construction plate is provided with a wire pressing bottom face, the wire pressing bottom face comprises a first main plane and two first auxiliary inclined faces, the two first auxiliary inclined faces are connected to the two ends of the first main plane respectively, and the first auxiliary inclined faces obliquely extend upwards in the direction away from the first main plane; the pressing piece is arranged on the construction plate in a penetrating mode and used for pressing the wire on the first main plane. A wire pressing bottom surface of a construction plate is arranged, the wire pressing bottom surface comprises a first main plane and two first auxiliary inclined surfaces, and the wire pressing bottom surface can partially surround a wire; a wire is placed in the wiring terminal structure, the two first auxiliary slopes can limit the position of the wire from the two sides of the wire and guide the wire to be located at the position of the first main plane in the middle, the wire is prevented from shifting in the left-right direction, the wire is not prone to loosening, and therefore the wire is stably and reliably pressed and fixed to a construction plate.

Description

Technical Field

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

[0002] In the prior art, the wire pressing surface of the terminal frame is usually flat, and the wire is only subjected to the downward pressure of the wire pressing plate. After the wire is placed in the terminal frame, the terminal frame cannot restrict the left and right sides of the wire. When the wire is pulled left and right, it is difficult to limit the position of the wire, making it difficult to compress the wire and easy to loosen.

[0003] That is, the existing terminal structure cannot restrict the left and right sides of the wire. When the wire is pulled left and right, it is difficult to restrict the position of the wire, making it difficult to compress the wire and easy to loosen. Utility Model Content

[0004] The utility model aims to provide a terminal structure to solve the problem that the existing terminal structure cannot limit the left and right sides of the wire, and it is difficult to limit the position of the wire when the wire is pulled left and right, which makes the wire difficult to compress and easy to loosen.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a wiring terminal structure, which comprises:

[0007] The structural plate is in a frame structure, and a pressing line bottom surface is provided on the inner side of the structural plate, and the pressing line bottom surface includes a first main plane and two first secondary inclined surfaces, the two first secondary inclined surfaces are respectively connected to the two ends of the first main plane, and the first secondary inclined surfaces extend upwardly and obliquely in a direction away from the first main plane;

[0008] A pressing member is provided through the structural plate and is used for pressing the wire onto the first main plane.

[0009] As an optional technical solution for the terminal structure, the two first secondary inclined surfaces are symmetrically arranged on both sides of the first main plane.

[0010] As an optional technical solution for a terminal block structure, the structural plate includes a main board, which is U-shaped and has two ends respectively connected to a first end plate and a second end plate, the bottom surface of the wire pressing is arranged on the inner side of the main board, the first end plate and the second end plate are overlapped and together with the main board form the frame structure, and the first end plate or the second end plate is plugged into the main board.

[0011] As an optional technical solution for a terminal block structure, the first end plate is located outside the second end plate, and a tongue portion is provided at the end of the second end plate, and the tongue portion is inserted into a side socket of the main board.

[0012] As an optional technical solution for a terminal block structure, the first end plate and the second end plate are provided with interconnected through holes at overlapping positions, and the clamping member is inserted into the through holes of the first end plate and the second end plate and is threadedly engaged with the through holes.

[0013] As an optional technical solution for a terminal block structure, the terminal block structure also includes a wire pressing plate, which is arranged on the inner side of the structural plate, and has a wire pressing top surface arranged opposite to the wire pressing bottom surface. The clamping piece is threadedly connected to the structural plate and the end portion is pressed against the wire pressing plate, so as to clamp the wire between the wire pressing top surface and the first main plane.

[0014] As an optional technical solution for a terminal structure, the wire pressing top surface includes a second main plane and two second secondary inclined planes, the two second secondary inclined planes are respectively connected to the two ends of the second main plane, and the second main plane is used to press the wire.

[0015] As an optional technical solution for the terminal structure, the second secondary inclined surface extends upwardly in a direction away from the second main plane.

[0016] As an optional technical solution of the terminal structure, the width of the second main plane is greater than the width of the first main plane.

[0017] As an optional technical solution for the terminal structure, a strip-shaped groove is provided on the bottom surface of the wire pressing.

[0018] Beneficial effects:

[0019] The utility model provides a terminal block structure, which includes a construction plate and a clamping member. The construction plate is a frame structure, and a wire pressing bottom surface is provided on the inner side of the construction plate. The wire pressing bottom surface includes a first main plane and two first secondary inclined surfaces, and the two first secondary inclined surfaces are respectively connected to the two ends of the first main plane, and the first secondary inclined surface extends upwardly in a direction away from the first main plane. The clamping member is passed through the construction plate and is used to clamp the wire on the first main plane. By setting the wire pressing bottom surface of the construction plate, the wire pressing bottom surface includes a first main plane and a first secondary inclined surface connected to the first main plane, and the wire pressing bottom surface can partially surround the wire. When the wire is placed in the terminal block structure, the two first secondary inclined surfaces can limit the wire position from both sides of the wire, and guide the wire to the middle first main plane position, so as to avoid the wire shifting in the left and right directions, and the wire is not easy to loosen, so that the wire is stably and reliably clamped and fixed to the construction plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the structural plate provided by the embodiment of the utility model;

[0021] Figure 2 The structure of the wiring terminal structure and the wire provided in the embodiment of the utility model is schematically shown. Figure 1 ;

[0022] Figure 3 The structure of the wiring terminal structure and the wire provided in the embodiment of the utility model is schematically shown. Figure 2 ;

[0023] Figure 4 The structure of the wiring terminal structure and the wire provided in the embodiment of the utility model is schematically shown. Figure 3 ;

[0024] Figure 5 The structure of the wiring terminal structure and the wire provided in the embodiment of the utility model is schematically shown. Figure 4 .

[0025] In the figure:

[0026] 100. Wire;

[0027] 10. structural plate; 11. first end plate; 12. second end plate; 121. tongue portion; 13. line pressing bottom surface; 131. first main plane; 132. first secondary inclined surface;

[0028] 20. Clamping parts;

[0029] 30. Pressing plate; 31. Pressing top surface; 311. Second main plane; 312. Second secondary inclined plane. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0031] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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 or an electrical connection; 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 invention can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0034] like Figure 1 and Figure 2 As shown, the present embodiment provides a terminal structure, which includes a structural plate 10 and a clamping piece 20. The structural plate 10 is a frame structure. A wire pressing bottom surface 13 is provided on the inner side of the structural plate 10. The wire pressing bottom surface 13 includes a first main plane 131 and two first secondary inclined surfaces 132. The two first secondary inclined surfaces 132 are respectively connected to the two ends of the first main plane 131, and the first secondary inclined surfaces 132 extend upwardly in a direction away from the first main plane 131. The clamping piece 20 is passed through the structural plate 10 to clamp the wire 100 onto the first main plane 131.

[0035] By setting the wire pressing bottom surface 13 of the structural plate 10, the wire pressing bottom surface 13 includes a first main plane 131 and a first secondary inclined surface 132 connected to the first main plane 131, and the wire pressing bottom surface 13 can partially surround the wire 100; the wire 100 is placed in the terminal structure, and the two first secondary inclined surfaces 132 can limit the position of the wire 100 from both sides of the wire 100, and guide the wire 100 to be at the middle position of the first main plane 131, so as to avoid the displacement of the wire 100 in the left and right directions, and the wire 100 is not easy to loosen, so that the wire 100 is stably and reliably pressed and fixed to the structural plate 10.

[0036] The first direction is taken as an example of the horizontal direction, and the second direction is taken as an example of the vertical direction. The terminal structure is applied to the rail-type electric energy meter. The structural plate 10 is formed by bending a plate-like material, thereby enclosing a frame structure and forming an inner cavity that penetrates in the horizontal direction, and the bottom wall of the inner cavity forms a wire pressing bottom surface 13 extending in the horizontal direction; the two first secondary inclined surfaces 132 extend upward in an inclined direction in the vertical direction.

[0037] Optionally, the two first secondary inclined surfaces 132 are symmetrically arranged on both sides of the first main plane 131; the angle between the first secondary inclined surface 132 and the first main plane 131 is greater than 90 degrees and less than 180 degrees. By symmetrically arranging the two first secondary inclined surfaces 132, it is ensured that the terminal structure has the same effect on both sides of the wire 100, and the wire 100 is prevented from shifting to one side due to different effects on both sides. In this embodiment, the angle between the first secondary inclined surface 132 and the first main plane 131 is 120 degrees. In other embodiments, the inclination of the two first secondary inclined surfaces 132 can also be adaptively adjusted according to the cross-sectional shape of the wire 100, and the inclination of the two first secondary inclined surfaces 132 can be the same or different.

[0038] In order to increase the friction between the terminal structure and the wire 100, a strip groove is provided on the wire pressing bottom surface 13. By providing the strip groove on the wire pressing bottom surface 13, the roughness of the wire pressing bottom surface 13 is increased, and the possibility of the wire 100 slipping on the wire pressing bottom surface 13 is reduced.

[0039] Specifically, the structural plate 10 includes a main board, which is U-shaped and has two ends connected to a first end plate 11 and a second end plate 12, respectively. A wire pressing bottom surface 13 is arranged on the inner side of the main board. The first end plate 11 and the second end plate 12 are arranged to overlap and enclose together with the main board to form a frame structure. The first end plate 11 or the second end plate 12 is plugged into the main board. The first end plate 11 and the second end plate 12 are both connected to the main board. By setting the first end plate 11 or the second end plate 12 to be plugged into the main board, the relative position of the first end plate 11 or the second end plate 12 and the main board can be further limited, thereby improving the firmness of the frame structure and ensuring that the first end plate 11 and the second end plate 12 are arranged to overlap to avoid misalignment of the first end plate 11 and the second end plate 12, thereby affecting the normal use of the structural plate 10 and the clamping member 20.

[0040] In this embodiment, the first end plate 11 is located outside the second end plate 12, and a tongue portion 121 is provided at the end of the second end plate 12, and the tongue portion 121 is inserted into the side plug hole of the main board. By providing the tongue portion 121 and the side plug hole of the structural plate 10 for plugging and matching, the relative position of the first end plate 11 and the second end plate 12 is effectively limited to avoid misalignment of the first end plate 11 and the second end plate 12. Optionally, the tongue portion 121 is in a rectangular block shape, the cross section of the side plug hole is rectangular, and the size of the side plug hole is slightly larger than the size of the tongue portion 121.

[0041] Furthermore, the first end plate 11 and the second end plate 12 are provided with mutually connected through holes at the overlapping position, and the clamping member 20 is inserted into the through holes of the first end plate 11 and the second end plate 12, and the clamping member 20 is threadedly matched with the through holes. By inserting the clamping member 20 into the overlapping position, the clamping member 20 can connect the first end plate 11 and the second end plate 12, and the clamping member 20 is threadedly connected with the structural plate 10, so that the position of the clamping member 20 can be adjusted to ensure that the end of the clamping member 20 can clamp wires 100 of different sizes. The first end plate 11 is connected to the main board, and the tongue portion 121 of the second end plate 12 is inserted into the side plug hole of the main board, which can effectively limit the position of the through holes on the first end plate 11 and the second end plate 12, ensure that the two through holes overlap, and avoid the clamping member 20 being stuck due to the misalignment of the two through holes. In this embodiment, the through hole extends in the vertical direction, and the clamping member 20 is a fastening screw.

[0042] In order to improve the stability of the wire 100 being compressed, the terminal structure further includes a wire pressing plate 30, which is arranged on the inner side of the structural plate 10, and has a wire pressing top surface 31 arranged opposite to the wire pressing bottom surface 13. The clamping member 20 is threadedly connected to the structural plate 10 and the end thereof is pressed against the wire pressing plate 30, so as to compress the wire 100 between the wire pressing top surface 31 and the first main plane 131. By setting the wire pressing plate 30 to be threadedly connected to the structural plate 10, the distance between the wire pressing top surface 31 of the wire pressing plate 30 and the first main plane 131 is adjusted by using the knob clamping member 20, so that the wire 100 is located between the wire pressing top surface 31 and the first main plane 131, and the wire pressing plate 30 is used to compress the wire 100 and the clamping member 20 is used to provide the compression force, thereby increasing the wire pressing area and further improving the stability and reliability of the wire 100 compression.

[0043] In this embodiment, the wire pressing plate 30 is fixedly connected to a low-voltage electrical appliance, such as a guide rail type electric energy meter; a mounting groove is also provided in the low-voltage electrical appliance, and the wire pressing plate 30 is arranged in the middle of the mounting groove; the structural plate 10 is slidably arranged in the mounting groove along the vertical direction, and the structural plate 10 is sleeved on the outside of the wire pressing plate 30. The wire 100 is placed in the inner cavity of the structural plate 10. When the pressing member 20 is rotated, the wire pressing plate 30 remains fixed, the structural plate 10 moves along the vertical direction, and the wire pressing bottom surface 13 of the structural plate 10 gradually approaches the wire pressing plate 30, so that the wire 100 moves toward the first main plane 131 in the middle, until the wire 100 is pressed between the wire pressing top surface 31 and the wire pressing bottom surface 13.

[0044] See also Figure 2The wire pressing top surface 31 includes a second main plane 311 and two second secondary inclined planes 312. The two second secondary inclined planes 312 are respectively connected to the two ends of the second main plane 311. The second main plane 311 is used to press the wire 100. By providing the wire pressing top surface 31 with the second secondary inclined plane 312, the second secondary inclined plane 312 can cooperate with the first secondary inclined plane 132 of the wire pressing bottom surface 13; the second main plane 311 can cooperate with the first main plane 131 to press the wire 100 together.

[0045] In this embodiment, the second secondary bevel 312 extends upwardly and obliquely in a direction away from the second main plane 311; two second secondary bevels 312 are symmetrically arranged on both sides of the second main plane 311, and the angle between the second secondary bevel 312 and the second main plane 311 is equal to the angle between the first secondary bevel 132 and the first main plane 131; the width of the second main plane 311 is greater than the width of the first main plane 131. By setting the inclination direction of the second secondary bevel 312, the second secondary bevel 312 can be matched with the first secondary bevel 132; by setting the width of the second main plane 311 to be greater than the width of the first main plane 131, when the second secondary bevel 312 is attached to the first secondary bevel 132, a small wiring gap can be formed between the second main plane 311 and the first main plane 131. In other embodiments, the second secondary bevel 312 can also be arranged to extend downwardly and obliquely in a direction away from the second main plane 311, so as to guide and restrict the wire 100 between the two second secondary bevels 312.

[0046] The terminal block structure is suitable for a variety of applications such as single-strand wires, multi-strand wires, and flat connectors. Taking four cases as examples, the following is the specific use process of the terminal block structure:

[0047] See also Figure 1 and Figure 2 , assemble the structural plate 10 and the pressing piece 20, the pressing piece 20 passes through the through holes of the first end plate 11 and the second end plate 12 in sequence and the bottom end is supported on the wire pressing plate 30; the wire pressing plate 30 remains stationary, the wire 100 is placed in the inner cavity of the structural plate 10, the pressing piece 20 is rotated and tightened, the structural plate 10 moves in the vertical direction, the wire pressing bottom surface 13 gradually approaches the wire pressing plate 30, and during the upward movement of the structural plate 10, the wire pressing bottom surface 13 slowly wraps the wire 100, so that the wire 100 moves closer to the first main plane 131 in the middle, until the wire 100 is pressed between the wire pressing top surface 31 and the wire pressing bottom surface 13. Because the wire 100 is subjected to circumferential force and downward pressure, it is difficult to separate the wire 100 from the terminal structure during the twisting and pulling process of the wire 100.

[0048] See Figure 2 , the wire 100 may be a multi-strand wire. Figure 3, the wire 100 may be a single-strand wire. Figure 4 The wire 100 can be a flat connector. The first main plane 131 and the second main plane 311 are used to compress the flat connector, which increases the crimping area, and the two first secondary inclined surfaces 132 can limit the flat connector from the left and right sides, effectively reducing the risk of the flat connector being pulled loose.

[0049] See also Figure 5 When the size of the wire 100 is small, as the pressing member 20 is gradually tightened, the structural plate 10 gradually moves upward until the first secondary inclined surface 132 is attached to the second secondary inclined surface 312, and the width of the second main plane 311 is greater than the width of the first main plane 131, so that a smaller wiring gap is formed between the first main plane 131 and the second main plane 311 to meet the needs of the smaller size of the wire 100. When there is no wire 100, the wiring gap can be close to 0. Optionally, the minimum distance between the first main plane 131 and the second main plane 311 is 1 mm to 10 mm.

[0050] It is understandable that the terminal block structure provided in this embodiment can be applied to wires 100 of different sizes and has good compatibility. When the outer diameter of the wire 100 is large, the force required to guide the left and right sides of the wire 100 is large, and the wire 100 will remain in contact with the first secondary bevel 132, and the first secondary bevel 132 can support and limit the position of the wire 100 from the side; when the outer diameter of the wire 100 is small, the force required to guide the left and right sides of the wire 100 is also small, and the first secondary bevel 132 can guide the wire 100 to the position of the first main plane 131 in the middle, and even if the wire 100 does not remain in contact with the first secondary bevel 132, the wire 100 can be stably compressed.

[0051] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. The terminal structure is characterized by: include: A structural plate (10) is in a frame structure, wherein a pressing line bottom surface (13) is provided on the inner side of the structural plate (10), wherein the pressing line bottom surface (13) comprises a first main plane (131) and two first secondary inclined surfaces (132), wherein the two first secondary inclined surfaces (132) are respectively connected to two ends of the first main plane (131), and the first secondary inclined surfaces (132) extend upwardly and obliquely in a direction away from the first main plane (131); A pressing member (20) is provided through the structural plate (10) and is used to press the wire (100) onto the first main plane (131).

2. The terminal structure according to claim 1, characterized in that: The two first secondary inclined surfaces (132) are symmetrically arranged on both sides of the first main plane (131).

3. The terminal structure according to claim 1, characterized in that: The structural plate (10) comprises a main board, the main board is U-shaped and has two ends respectively connected to a first end board (11) and a second end board (12), the wire pressing bottom surface (13) is arranged on the inner side of the main board, the first end board (11) and the second end board (12) are overlapped and enclosed with the main board to form the frame structure, and the first end board (11) or the second end board (12) is plugged into the main board.

4. The terminal structure according to claim 3, characterized in that: The first end plate (11) is located outside the second end plate (12); a latching tongue portion (121) is provided at the end of the second end plate (12); and the latching tongue portion (121) is inserted into a side insertion hole of the main board.

5. The terminal structure according to claim 3, characterized in that: The first end plate (11) and the second end plate (12) are both provided with interconnected through holes at overlapping positions, and the clamping member (20) is inserted into the through holes of the first end plate (11) and the second end plate (12) and is threadedly engaged with the through holes.

6. The terminal structure according to claim 1, characterized in that: The terminal structure also includes a wire pressing plate (30), which is arranged on the inner side of the structural plate (10), and has a wire pressing top surface (31) arranged opposite to the wire pressing bottom surface (13); the clamping member (20) is threadedly connected to the structural plate (10) and its end is pressed against the wire pressing plate (30), so as to press the wire (100) between the wire pressing top surface (31) and the first main plane (131).

7. The terminal structure according to claim 6, characterized in that: The wire pressing top surface (31) comprises a second main plane (311) and two second secondary inclined planes (312), the two second secondary inclined planes (312) are respectively connected to two ends of the second main plane (311), and the second main plane (311) is used to press the wire (100).

8. The terminal structure according to claim 7, characterized in that: The second secondary inclined surface (312) extends obliquely upward in a direction away from the second main plane (311).

9. The terminal structure according to claim 8, characterized in that: The width of the second main plane (311) is greater than the width of the first main plane (131).

10. The terminal structure according to any one of claims 1 to 9, characterized in that: The line pressing bottom surface (13) is provided with a strip-shaped groove.

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