Wiring terminal and electrical equipment

Abstract

The utility model provides a wiring terminal and electrical equipment, the wiring terminal comprises a wiring frame, a driving member and a wire pressing structure, the wiring frame is provided with a threading space for a lead to pass through, the wire pressing structure is assembled on the wiring frame in a swinging manner, and the driving member acts on the wire pressing structure to drive the wire pressing structure to swing towards the direction of the threading space; wherein the line pressing structure is provided with a crimping surface corresponding to the threading space, and a line, extending from the swinging fulcrum to the swinging tail end, of the crimping surface conforms to an Archimedes spiral line. The wire pressing positions of the wires with different diameters are kept uniform, the wire connection depth is reduced, and the terminal size is reduced. And the leads with different diameters are tangent to the spiral line during installation, so that the wiring stability can be improved.

Description

Technical Field

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

[0002] Electrical Equipment is a general term for generators, transformers, power lines, circuit breakers and other equipment in the power system.

[0003] Electrical equipment is usually connected to external circuits through terminal blocks. CN206947553U discloses a connector crimping module, which includes a crimping pendulum block and a crimping shell with a chamber inside. A screw hole and a wire entrance are provided on one side wall of the crimping shell, and arc-shaped slots are provided on both side walls of the crimping shell that are perpendicular to the side wall where the screw hole is located; the crimping pendulum block includes an arc-shaped pressing block arranged in the chamber and an arc-shaped pressing block fixedly connected to the arc-shaped pressing block and movably hung on two arc-shaped slots; a crimping screw extending into the chamber and driving the arc-shaped pressing block to rotate and press the wire in contact with the conductive plug is provided in the screw hole; the crimping pendulum block is driven to press the wire by screwing the screw. The crimping end of the wire crimping pendulum is a convex end. When crimping wires of different diameters, the wires are defined to be inserted from top to bottom. The crimping position of the thick wire is at a lower position, which means that it needs to be inserted deeper to be effectively crimped, while the crimping position of the thin wire is at a higher position; the crimping positions of wires of different diameters are different, which may cause the risk of unstable crimping. Utility Model Content

[0004] Therefore, the utility model provides a wiring terminal and an electrical device to solve the above problems.

[0005] To achieve the above purpose, the technical solution provided by the utility model is as follows:

[0006] A wiring terminal comprises a wiring frame, a driving member and a wire pressing structure, wherein the wiring frame has a wire threading space for the wire to be threaded, the wire pressing structure is swingably mounted on the wiring frame, the driving member acts on the wire pressing structure to drive the wire pressing structure to swing toward the wire threading space; the wire pressing structure has a crimping surface corresponding to the wire threading space, and the line extending from the swing fulcrum to the swing end of the crimping surface conforms to the Archimedean spiral.

[0007] Furthermore, the crimping surface of the wire crimping structure has a crimping tooth portion.

[0008] Furthermore, the crimping surface of the wire crimping structure is recessed with a plurality of recesses, and the crimping teeth are formed between adjacent recesses.

[0009] Furthermore, the number of the crimping teeth is multiple and distributed along the swing fulcrum toward the swing end.

[0010] Furthermore, the wiring frame has at least a first side opening and a second side opening adjacent to the first side opening, the first side opening of the wiring frame is equipped with a wire pressing plate, and the threading space is located between the wire pressing structure and the wire pressing plate; the second side opening serves as a wire insertion port to connect the threading space.

[0011] Furthermore, the wire pressing structure includes a connected wire pressing block and a connecting shaft column, the connecting shaft column is assembled on the wiring frame so that the wire pressing block swings with the connecting shaft column as a fulcrum, and the side surface of the wire pressing block corresponding to the wire pressing plate is the crimping surface.

[0012] Furthermore, an opposite side of the wiring frame is recessed with an accommodation gap, and both ends of the connecting shaft column are assembled in the accommodation gap on the opposite side.

[0013] Furthermore, the wire pressing plate includes a wire pressing plate body and a dovetail-shaped connecting portion connected to an opposite side of the wire pressing plate body, a dovetail-shaped mounting opening is opened on an opposite side of the wiring frame, and the connecting portion is fixedly assembled in the dovetail-shaped mounting opening of the wiring frame.

[0014] Furthermore, a surface of the wire pressing plate on one side facing the wire threading space has a plurality of concave recesses.

[0015] Furthermore, the driving member is a pan head screw, which is screwed on the wiring frame and abuts against the wire pressing structure.

[0016] An electrical device at least comprises the above-mentioned wiring terminal.

[0017] The technical solution provided by the utility model has the following beneficial effects:

[0018] The crimping surface of the crimping structure is designed to be a line extending from the swing fulcrum to the swing end in accordance with the Archimedean spiral, so that the crimping position of wires of different diameters remains uniform, reducing the wire connection depth and the terminal size. In addition, wires of different diameters are installed tangent to the spiral, which can improve the stability of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The figure shows a three-dimensional structure schematic diagram of the wiring terminal in the embodiment;

[0020] Figure 2 The figure shows a schematic diagram of the structure decomposition of the connection terminal in the embodiment;

[0021] Figure 3 The figure shows a schematic structural diagram of the wire pressing structure in the embodiment;

[0022] Figure 4 The figure shows a cross-sectional view of the wiring terminal in the embodiment when no wire is inserted;

[0023] Figure 5 The figure shows a cross-sectional view of the wiring terminal in the embodiment when a wire is inserted;

[0024] Figure 6 Shown is a cross-sectional view of the connecting terminal in the embodiment when another wire is inserted. DETAILED DESCRIPTION

[0025] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0026] In the description of the present invention, terms such as "up", "down", "left", "right", "front", "back", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying 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 of the present invention.

[0027] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.

[0028] Reference Figures 1 to 4 As shown, a wiring terminal provided in this embodiment includes a wiring frame 10, a driving member 30 and a wire pressing structure 20, wherein the wiring frame 10 has a wire threading space 101 for the wire 1 to be threaded, and the wire pressing structure 20 is swingably mounted on the wiring frame 10, and the driving member 30 acts on the wire pressing structure 20 to drive the wire pressing structure 30 to swing toward the wire threading space 101; specifically, the wire pressing structure 20 has a crimping surface 23 corresponding to the wire threading space 101, and the line extending from the swing fulcrum o to the swing end e of the crimping surface 23 conforms to the Archimedean spiral a. It can be understood that: the swing fulcrum o is equivalent to the central starting point of the Archimedean spiral a, and the line extending from the swing fulcrum o to the swing end e of the crimping surface 23 is one of the line segments of the Archimedean spiral a.

[0029] The wiring operation is as follows: Figure 5 , Figure 6 As shown, the wire 1 is inserted into the wire threading space 101 of the wiring frame 10, and then the wire pressing structure 20 is driven to swing toward the wire threading space 101 by operating the driving member 30 until the crimping surface 23 of the wire pressing structure 20 is crimped onto the wire 1, thereby clamping and fixing the wire 1.

[0030] The crimping surface 23 of the crimping structure 20 is designed to be a line extending from the swing fulcrum o to the swing end e in accordance with the Archimedean spiral a, so that the crimping position of wires 1 with different diameters remains uniform, such as crimping a thick wire (such as Figure 5 as shown) and thin wires (such as Figure 6 When the crimping position is substantially maintained at the same height, the wiring depth and the terminal size can be effectively reduced for thicker wires 1. In addition, wires 1 of different diameters are all tangent to the Archimedean spiral a during installation, which can improve the wiring stability.

[0031] Furthermore, in this embodiment, in order to better achieve the crimping of the wire 1, the crimping surface 23 of the wire crimping structure 20 has a crimping tooth portion 202. Specifically, the crimping surface 23 of the wire crimping structure 20 is recessed with a plurality of recesses 201, and the crimping tooth portion 202 is formed between adjacent recesses 201, that is, the crimping tooth portion 202 is formed by designing recesses 201 on the crimping surface 23. The crimping tooth portion 202 is crimped with the wire 1, and has a certain bite fit with the wire 1, so that the crimping is more stable.

[0032] There are multiple crimping teeth 202 , which are distributed along the swing fulcrum o toward the swing end e, ensuring that wires 1 of different diameters can cooperate with the crimping teeth 202 when being crimped.

[0033] Of course, in other embodiments, the crimping surface 23 of the wire crimping structure 20 may not form the structure of the crimping teeth 202 , that is, the entire crimping surface 23 is a smooth and complete surface.

[0034] The wiring frame 10 has at least a first side opening 104 and a second side opening 102 adjacent to the first side opening 104. The first side opening 104 of the wiring frame 10 is equipped with a wire pressing plate 40. The threading space 101 is located between the wire pressing structure 20 and the wire pressing plate 40. The second side opening 102 serves as a wire insertion port to connect the threading space 101. Specifically, in this embodiment, the wiring frame 10 is a hollow frame composed of a front side plate 11, a rear side plate 12, an upper side plate 13, and a lower side plate 14. The first side opening 104 is a right side opening, and the second side opening 102 is an adjacent upper side opening. The wire 1 is inserted into the threading space 101 through the upper side opening. The wire pressing structure 20 is driven by the driving member 30 to be crimped on the wire 1, and the wire 1 is clamped between the wire pressing structure 20 and the wire pressing plate 40. The first side opening 104 of the wiring frame 10 is provided to facilitate the assembly of the wire pressing structure 20 in the wiring frame 10 first, and then the installation of the wire pressing plate 40. At the same time, the structure of the wire pressing plate 40 is added, and the wire pressing plate 40 can also bear a current carrier for carrying current.

[0035] In this embodiment, the wire pressing structure 20 includes a wire pressing block 22 and a connecting shaft column 21 connected to each other, and the connecting shaft column 21 is assembled on the wiring frame 10 so that the wire pressing block 22 swings with the connecting shaft column 21 as a fulcrum, and the side of the wire pressing block 22 corresponding to the wire pressing plate 40 is a crimping surface 23. Specifically, the wire pressing block 22 and the connecting shaft column 21 are an integral connection structure.

[0036] Furthermore, an opposite side (i.e., the front side plate 11 and the rear side plate 12) of the wiring frame 10 is recessed with an accommodation notch 15, and both ends of the connecting shaft column 21 are assembled in the accommodation notch 15 on the opposite side. One installation method is: the two ends of the connecting shaft column 21 are respectively installed in the accommodation notches 15 of the front side plate 11 and the rear side plate 12, and the wire pressing block 22 is installed in the wiring frame 10 through the first side opening 104 and the second side opening 102, and then the wire pressing plate 40 is assembled to achieve simple installation.

[0037] Specifically, the wire pressing plate 40 includes a wire pressing plate body 41 and a dovetail-shaped connecting portion 42 connected to one opposite side (i.e., the front and rear sides) of the wire pressing plate body 41. A dovetail-shaped mounting opening 103 is provided on one opposite side (i.e., the front side plate 11 and the rear side plate 12) of the wiring frame 10. The connecting portion 42 is fixedly assembled in the dovetail-shaped mounting opening 103 of the wiring frame 10. The dovetail-shaped fixed mounting structure is adopted, and the installation is more firm.

[0038] The surface of the wire pressing plate 40 on one side facing the wire threading space 101 has a plurality of recessed depressions 43. Specifically, the recess 43 is a strip-shaped recess extending along the width direction (i.e., the front-to-back direction) of the wire pressing plate 40 and perpendicular to the insertion direction of the wire 1, which can increase the contact friction with the wire 1 and improve the crimping stability of the wire 1.

[0039] Of course, in other embodiments, when the wire pressing structure 20 is assembled to the wiring frame 10 in other ways, the wire pressing plate 40 and the front side plate 11 and the rear side plate 12 of the wiring frame 10 may also be integrally connected.

[0040] Furthermore, the driving member 30 is a pan head screw 31, and the pan head screw 31 is screwed on the wiring frame 10 and abuts against the wire pressing structure 20. Figure 4 As shown, the right side surface of the wire pressing structure 20 is the crimping surface 23, and the pan head screw 31 is screwed on the upper side plate 13 of the wiring frame 10 and is located on the left side of the connecting shaft column 21. The pan head screw 31 abuts against the left end portion of the wire pressing structure 20. By screwing the pan head screw 31, the left end of the wire pressing structure 20 is driven downward, so that the wire pressing structure 20 swings from left to right to achieve crimping of the wire 1.

[0041] The drive of the pan head screw 31 can realize stepless adjustment and adapt to the crimping of wires 1 of different diameters. At the same time, the pan head screw 31 can provide greater wiring torque. And because the line extending from the swing fulcrum o to the swing end e of the crimping surface 23 conforms to the design of the Archimedean spiral a, the wires 1 of different diameters are always tangent to the crimping surface 23 during installation, thus ensuring that the torque of the pan head screw 31 can be effectively transmitted, further improving the wiring reliability.

[0042] Of course, in other embodiments, the driving member 30 may also be other components that can drive the wire pressing structure to swing.

[0043] This embodiment also provides an electrical device, which at least includes the above-mentioned connection terminal.

[0044] Although the present invention has been specifically demonstrated and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes may be made to the present invention in form and detail without departing from the spirit and scope of the present invention as defined in the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A terminal block, comprising a wiring frame, a driving member and a wire pressing structure, wherein the wiring frame has a wire threading space for a wire to be threaded, the wire pressing structure is swingably mounted on the wiring frame, and the driving member acts on the wire pressing structure to drive the wire pressing structure to swing toward the wire threading space; characterized in that: The wire pressing structure has a pressing surface corresponding to the threading space, and the line extending from the swing fulcrum to the swing end of the pressing surface conforms to the Archimedean spiral.

2. The terminal block according to claim 1, characterized in that: The crimping surface of the wire crimping structure has a crimping tooth portion.

3. The terminal block according to claim 2, characterized in that: The crimping surface of the wire crimping structure is recessed with a plurality of recesses, and the crimping teeth are formed between adjacent recesses.

4. The terminal block according to claim 2 or 3, characterized in that: The number of the crimping teeth is multiple and they are distributed along the swing fulcrum toward the swing end.

5. The connection terminal according to claim 1, characterized in that: The wiring frame has at least a first side opening and a second side opening adjacent to the first side opening. The first side opening of the wiring frame is equipped with a wire pressing plate, and the threading space is located between the wire pressing structure and the wire pressing plate; the second side opening serves as a wire insertion port to connect the threading space.

6. The connecting terminal according to claim 1 or 5, characterized in that: The wire pressing structure comprises a connected wire pressing block and a connecting shaft column, wherein the connecting shaft column is assembled on the wiring frame so that the wire pressing block swings with the connecting shaft column as a fulcrum, and a side surface of the wire pressing block corresponding to the wire pressing plate is a crimping surface.

7. The connection terminal according to claim 6, characterized in that: An opposite side of the wiring frame is recessed with an accommodation notch, and both ends of the connecting shaft column are assembled in the accommodation notch on the opposite side.

8. The connection terminal according to claim 5, characterized in that: The wire pressing plate comprises a wire pressing plate body and a dovetail-shaped connecting portion connected to an opposite side of the wire pressing plate body. A dovetail-shaped mounting opening is provided on an opposite side of the wiring frame, and the connecting portion is fixedly assembled in the dovetail-shaped mounting opening of the wiring frame.

9. The connecting terminal according to claim 5 or 8, characterized in that: The surface of the wire pressing plate on one side facing the wire threading space is provided with a plurality of concave recesses.

10. The connection terminal according to claim 1, characterized in that: The driving member is a pan head screw, which is screwed on the wiring frame and abuts against the wire pressing structure.

11. An electrical device, characterized in that: At least comprising the connecting terminal described in any one of claims 1-10.

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