Terminal connection structure and terminal

Abstract

The application provides a terminal wiring structure and a wiring terminal, the terminal wiring structure comprising a terminal body, a wire and a wedge-shaped body; the terminal body comprises a wiring part and an electrical connection part for connecting with an electrical device, the wiring part is provided with an accommodation cavity for accommodating the wire, the accommodation cavity has an open end and a closed end, and the accommodation cavity comprises a wedge-shaped part, the cross section of the wedge-shaped part gradually increases in the direction from the open end to the closed end; the wedge-shaped body is arranged in the wedge-shaped part, the cross section of the wedge-shaped body gradually increases in the direction from the open end to the closed end; and the wedge-shaped body enters the end part of the wire. Through the application, the technical problems that the operation of assembling the wire and the terminal is time-consuming and laborious, and it is difficult to guarantee the stability of the connection are solved.

Description

Technical Field

[0001] This invention relates to the field of electrical connection technology, and in particular to a terminal wiring structure and a terminal block. Background Technology

[0002] Wire harnesses are the transmission medium for power and signals. Wires are the main components of wire harnesses, and wires are electrically connected to electrical components through terminals.

[0003] Currently, the common methods for connecting terminals and wires are crimping and welding, which require the use of corresponding crimping or welding equipment and must be carried out in specific processing areas.

[0004] Due to limitations, some repair or wiring harness installation work cannot be done with crimping or welding equipment. In such cases, only manual tools can be used for crimping or welding, which is time-consuming and labor-intensive, and it is difficult to guarantee the stability of the terminal and wire connection.

[0005] Therefore, there is an urgent need in the field of electrical connection technology for a connection terminal and wire terminal structure that is time-saving, labor-saving, and stable without the need for tooling equipment. Summary of the Invention

[0006] The purpose of this invention is to provide a terminal wiring structure and terminal block to alleviate the technical problems of time-consuming and laborious operation of assembling wires and terminals, and difficulty in ensuring connection stability.

[0007] The above-mentioned objectives of the present invention can be achieved by the following technical solutions:

[0008] This invention provides a terminal wiring structure, comprising: a terminal body, a wire, and a wedge-shaped body; the terminal body includes a wiring portion and an electrical connection portion for connecting to an electrical device, the wiring portion having a receiving cavity for accommodating the wire, the receiving cavity having an open end and a closed end, the receiving cavity including a wedge-shaped portion, the cross-section of the wedge-shaped portion gradually increasing from the open end to the closed end; the wedge-shaped body is disposed within the wedge-shaped portion, the cross-section of the wedge-shaped body gradually increasing from the open end to the closed end; and the wedge-shaped body extends to the end of the wire.

[0009] In a preferred embodiment, the sum of the volumes of the wedges and the sum of the volumes of the wires entering the wedge portion are greater than or equal to the internal volume of the wedge portion.

[0010] In a preferred embodiment, after the wedge enters the end of the conductor, the maximum radial cross-sectional area of ​​the wedge and the conductor is greater than the minimum internal cross-sectional area of ​​the wedge portion.

[0011] In a preferred embodiment, the receiving cavity includes a cylindrical portion, and the cylindrical portion and the wedge-shaped portion are distributed sequentially along the direction from the open end to the closed end.

[0012] In a preferred embodiment, the wedge shape is a frustum, cone, elliptical frustum, elliptical cone, polygonal frustum, polygonal cone, semi-spindle frustum, or semi-spindle body.

[0013] In a preferred embodiment, there are multiple wedges, and the multiple wedges are arranged in a rectangular or circular pattern on the end face of the conductor.

[0014] In a preferred embodiment, the wedge is made of non-metal or metal.

[0015] In a preferred embodiment, the cross-sectional shape of the wedge portion is circular, elliptical, square, polygonal, cross-shaped, E-shaped, F-shaped, H-shaped, K-shaped, L-shaped, T-shaped, U-shaped, V-shaped, W-shaped, X-shaped, Y-shaped, Z-shaped, semi-arc, arc-shaped, or wavy.

[0016] In a preferred embodiment, the ratio of the sum of the volumes of the wedges to the internal volume of the wedge portion ranges from 1% to 45%.

[0017] In a preferred embodiment, the ratio of the inner radial cross-sectional area of ​​the cylindrical portion to the outer circumferential area of ​​the conductor is in the range of 75%-100%.

[0018] In a preferred embodiment, the ratio of the maximum radial width or diameter of the cylindrical portion to the maximum radial width or diameter of the wedge portion ranges from 45% to 95%.

[0019] In a preferred embodiment, the ratio of the length of the wedge portion to the length of the cylindrical portion ranges from 5% to 100%.

[0020] In a preferred embodiment, the wire is a flexible conductor and comprises multiple metal wires.

[0021] In a preferred embodiment, when the conductor is a rigid conductor, the front end of the conductor is provided with a slot for at least accommodating the tip of the wedge.

[0022] In a preferred embodiment, the electrical connection is connected to the closed end, and the closed end is sealed through the electrical connection.

[0023] In a preferred embodiment, the wiring portion is detachably connected to the electrical connection portion.

[0024] In a preferred embodiment, the electrical connection portion is located on one side of the wiring portion.

[0025] In a preferred embodiment, the wiring portion is provided with a sliding groove, and a movable plate is detachably connected in the sliding groove, and the closed end is closed by the movable plate.

[0026] In a preferred embodiment, the wiring portion includes a first split and a second split that are detachably connected, and the dividing and mating surfaces of the first split and the second split extend longitudinally along the wiring portion.

[0027] In a preferred embodiment, the first part and the second part are connected by an adhesive structure, a magnetic structure, a plug-in structure, a snap-fit ​​structure, a bolt connection structure, a riveting structure, a welding structure, a binding structure, or a locking structure.

[0028] In a preferred embodiment, the terminal body is made of one or more of the following materials: nickel, cadmium, zirconium, chromium, cobalt, manganese, aluminum, tin, titanium, zinc, copper, silver, gold, phosphorus, tellurium, beryllium, and lead.

[0029] In a preferred embodiment, the terminal body material contains a tellurium-copper alloy, wherein the tellurium content in the tellurium-copper alloy is 0.1%-5%.

[0030] In a preferred embodiment, the terminal body material contains a beryllium copper alloy, and the beryllium content in the beryllium copper alloy is 0.05%-5%.

[0031] In a preferred embodiment, the terminal body material contains a phosphor bronze alloy, and the phosphorus content in the phosphor bronze alloy is 0.01% to 1.5%.

[0032] In a preferred embodiment, the terminal body material contains a leaded brass alloy, wherein the lead content in the leaded brass alloy is 0.1% to 5%.

[0033] In a preferred embodiment, at least a portion of the surface of the terminal body is provided with a plating layer.

[0034] In a preferred embodiment, the coating material contains one or more of the following: gold, silver, nickel, tin, zinc, tin-lead alloy, silver-antimony alloy, palladium, palladium-nickel alloy, graphite silver, graphene silver, hard silver, and silver-gold-zirconium alloy.

[0035] In a preferred embodiment, the coating is applied by electroplating, chemical plating, magnetron sputtering, or vacuum plating.

[0036] The present invention provides a terminal block for use in the above-mentioned terminal wiring structure. The terminal block includes a terminal body; the terminal body includes a wiring portion and an electrical connection portion for connecting to an electrical device. The wiring portion is provided with a receiving cavity for accommodating a wire. The receiving cavity has an open end and a closed end. The receiving cavity includes a wedge-shaped portion. The cross-section of the wedge-shaped portion gradually increases from the open end to the closed end.

[0037] In a preferred embodiment, the terminal block includes a wedge-shaped body disposed within the wedge-shaped portion, the cross-section of the wedge-shaped body gradually increasing from the open end to the closed end; and the wedge-shaped body is capable of entering the end of the wire.

[0038] The features and advantages of this invention are:

[0039] During assembly, the wedge-shaped body abuts against the closed end of the receiving cavity. By applying opposing forces to the wire and the terminal body, the smaller end of the wedge-shaped body is driven to insert into the wire, causing the wire to expand and contact the inner wall of the wedge-shaped part of the receiving cavity.

[0040] The wedge shape ensures tight contact between the wire and the terminal block. The combined cross-sectional area of ​​the wire and wedge is larger than the outlet cross-sectional area of ​​the receiving cavity. Furthermore, the wedge shape generates significant frictional resistance as the wire withdraws longitudinally, preventing it from exiting and confining it within the receiving cavity to guarantee a satisfactory pull-out force. This terminal connection structure enhances the mechanical and electrical properties of the connection between the wire and the terminal body. This terminal connection structure offers the following advantages:

[0041] (1) The wire and the wedge are tightly connected, the connection is stable and not easy to fall off, the contact area is increased, and the electrical and mechanical properties of the wire and terminal body meet the requirements.

[0042] (2) The wedge shape can be made of conductive metal to increase the conductive area between the wire and the terminal body and reduce the heat generation at the connection.

[0043] (3) The terminal block has a simple structure and is easy to operate, eliminating the need for crimping tools, and is suitable for scenarios such as wire harness repair and maintenance;

[0044] (4) Easy to disassemble and reassemble, and can be reused. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0046] Figure 1 A schematic diagram of one embodiment of the terminal wiring structure provided by the present invention;

[0047] Figure 2 for Figure 1 The diagram shows the terminal wiring structure in the disconnected state;

[0048] Figure 3 for Figure 1 A schematic diagram of the terminal body in the terminal wiring structure shown;

[0049] Figure 4 for Figure 1 A schematic diagram of the wedge-shaped body and the wire in the terminal wiring structure shown;

[0050] Figure 5 for Figure 4 The diagram shows the distribution of the wedges.

[0051] Figure 6 A schematic diagram of another embodiment of the terminal wiring structure provided by the present invention;

[0052] Figure 7 for Figure 6 The diagram shows the terminal wiring structure in the disconnected state;

[0053] Figure 8 for Figure 6 A schematic diagram of the wedge-shaped body and the wire in the terminal wiring structure shown;

[0054] Figures 9-10 for Figure 8 The diagram shows the distribution of the wedges.

[0055] Figure 11 A schematic diagram of another embodiment of the terminal body in the terminal wiring structure provided by the present invention;

[0056] Figure 12 A schematic diagram of another embodiment of the terminal body in the terminal wiring structure provided by the present invention;

[0057] Figure 13 for Figure 12 A sectional view of the terminal body along the BB direction shown;

[0058] Figure 14 for Figure 12 A sectional view of the terminal body along direction AA shown;

[0059] Figure 15 A schematic diagram of another embodiment of the terminal body in the terminal wiring structure provided by the present invention;

[0060] Figure 16 for Figure 15 The left view.

[0061] Explanation of icon numbers:

[0062] 10. Terminal body; 11. Electrical connection part;

[0063] 20. Wiring section; 21. Receiving cavity; 211. Open end; 212. Closed end;

[0064] 31. Wedge-shaped part; 32. Columnar part;

[0065] 41. Slide rail; 42. Movable plate;

[0066] 51. First component; 52. Second component; 53. Partial joint surface; 54. Locking structure;

[0067] 60. Wedge-shaped body;

[0068] 70. Wire; 71. Groove; 72. Insulation layer. Detailed Implementation

[0069] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0070] Option 1

[0071] This invention provides a terminal wiring structure, such as Figures 1-4 and Figures 6-8 As shown, the terminal wiring structure includes: a terminal body 10, a wire 70, and a wedge 60; the terminal body 10 includes a wiring portion 20 and an electrical connection portion 11 for connecting to an electrical device; the wiring portion 20 is provided with a receiving cavity 21 for accommodating the wire 70; the receiving cavity 21 has an open end 211 and a closed end 212; the receiving cavity 21 includes a wedge portion 31; the cross-section of the wedge portion 31 gradually increases from the open end 211 to the closed end 212; the wedge 60 is disposed in the wedge portion 31; the cross-section of the wedge 60 gradually increases from the open end 211 to the closed end 212; and the wedge 60 extends to the end of the wire 70.

[0072] During assembly, the wedge 60 abuts against the closed end 212 of the receiving cavity 21. By applying opposing forces to the wire 70 and the terminal body 10, the smaller end of the wedge 60 is driven to insert into the wire 70, causing the wire 70 to expand and contact the inner wall of the wedge portion 31 of the receiving cavity 21.

[0073] Under the action of the wedge 60, the wire 70 can be made into tight contact with the terminal 20. The cross-sectional area of ​​the wire 70 and the wedge 60 after combination is larger than the cross-sectional area of ​​the outlet of the receiving cavity 21, and the wedge 31 generates a relatively large frictional resistance when the wire 70 is withdrawn longitudinally, thereby preventing the wire 70 from being withdrawn from the wedge 31, confining the wire 70 within the receiving cavity 21, and ensuring that the pull-out force is qualified. The use of this terminal wiring structure enhances the mechanical and electrical properties of the connection between the wire 70 and the terminal body 10.

[0074] In one embodiment, the receiving cavity 21 includes a cylindrical portion 32, and the cylindrical portion 32 and the wedge-shaped portion 31 are sequentially distributed along the direction from the open end 211 to the closed end 212. The cylindrical portion 32 can guide the wedge-shaped body 60 and the wire 70 to be inserted into the wedge-shaped portion 31. Further, at the connection position, the wedge-shaped portion 31 and the cylindrical portion 32 have the same cross-sectional shape. The cross-sectional area of ​​the position where the wedge-shaped portion 31 is connected to the electrical connection portion 11 is larger than the cross-sectional area of ​​the position where the wedge-shaped portion 31 is connected to the cylindrical portion 32.

[0075] The wedge 60 can be made of non-metallic or metallic material. The inventors have further improved the shape, distribution, and shape of the wedge portion 31 of the wedge 60 to enhance the robustness of the connection between the wire 70 and the terminal body 10.

[0076] The wedge 60 can have many shapes, such as a frustum, cone, elliptical frustum, elliptical cone, polygonal frustum, polygonal pyramid, semi-spindle frustum, or semi-spindle. Specifically, the cross-section of the wedge 60 can be circular, triangular, quadrilateral, or polygonal, and the longitudinal section of the wedge 60 can be triangular or trapezoidal. The sides of the longitudinal section of the wedge 60 can be hyperbolic, parabolic, or circular arc, etc.

[0077] The distribution of the wedge-shaped bodies 60 on the end face of the conductor 70 is not limited to one method; for example: Figure 5 As shown, multiple wedge-shaped bodies 60 are arranged in a circular pattern; as Figure 9 or Figure 10 As shown, multiple wedges 60 are arranged in a rectangular pattern. The circumscribed circle diameter of the distribution area of ​​the base of the multiple wedges 60 is less than or equal to the inner diameter of the cylindrical portion 32, so that the wedge portion 31 can enter the wedge portion 31 through the cylindrical portion 32. The longitudinal length of the wedge 60 is less than the longitudinal height of the wedge portion 31.

[0078] The wedge-shaped portion 31 can have many shapes. For example, the cross-sectional shape of the wedge-shaped portion 31 can be circular, elliptical, square, polygonal, cross-shaped, E-shaped, F-shaped, H-shaped, K-shaped, L-shaped, T-shaped, U-shaped, V-shaped, W-shaped, X-shaped, Y-shaped, Z-shaped, semi-circular, arc-shaped, or wavy. Furthermore, the shape of the cross-section at different longitudinal positions of the wedge-shaped portion 31 can be different.

[0079] In this terminal wiring structure, the wedge 60 can be placed inside the wedge portion 31 first, and then the wire 70 can be inserted into the wedge portion 31. At the same time, the wedge 60 can be inserted into the wire 70. Alternatively, the wedge 60 can be connected to the end face of the wire 70 first, and then the wedge 60 can be placed into the wedge portion 31 together with the wire 70. At the same time, the wedge 60 can be inserted into the wire 70.

[0080] In one embodiment, the sum of the volumes of the wedge-shaped bodies 60 and the sum of the volumes of the wires 70 entering the wedge-shaped portion 31 is greater than or equal to the volume of the wedge-shaped portion 31, so that the wires 70 are more tightly connected to the inner wall of the wedge-shaped portion 31 in the terminal wiring structure. When there are multiple wedge-shaped bodies 60, the sum of the volumes of the wedge-shaped bodies 60 is the sum of the volumes of each individual wedge-shaped body 60; when there is only one wedge-shaped body 60, the sum of the volumes of the wedge-shaped bodies 60 is the volume of a single wedge-shaped body 60.

[0081] In one embodiment, the ratio of the sum of the volumes of the wedges 60 to the internal volume of the wedge portion 31 ranges from 1% to 45%.

[0082] To verify the effect of the ratio of the sum of the volumes of the wedges 60 to the internal volume of the wedge portion 31 on the pull-out force and voltage drop of the terminal wiring structure, the inventors selected wedge portions 31 of the same specification, wedges 60 of different volumes, and the same wires 70 to make a sample of the terminal wiring structure. The pull-out force and voltage drop of the sample of the terminal wiring structure were tested, and the results are recorded in Table 1.

[0083] The pull-out force test method involves using a universal pull-out force testing machine. The terminal body 10 and the wire 70 are respectively fixed to the tensile fixture of the universal pull-out force testing machine, and pulled in opposite directions at a speed of 50 mm / min. The force at which the wire 70 finally detaches from the terminal body 10 is recorded as the pull-out force. In this embodiment, a pull-out force less than 1600 N is considered unqualified.

[0084] Voltage drop test method: Place terminal body 10 and wire 70 on a voltage drop testing platform, and test the voltage values ​​A and B of terminal body 10 and wire 70 respectively. Then test the voltage value C from terminal body 10 to wire 70. Calculate the value of C-(A+B) as the voltage drop at the connection point of terminal body 10 and wire 70. In this embodiment, a voltage drop greater than 4mV is considered unacceptable.

[0085] Table 1: The effect of the ratio of the sum of the volumes of the wedges 60 to the internal volume of the wedge portion 31 on the pull-out force and voltage drop of the terminal wiring structure.

[0086]

[0087] As shown in Table 1, when the ratio of the sum of the volumes of the wedges 60 to the internal volume of the wedge portion 31 is less than 1%, the voltage drop between the terminal body 10 and the wire 70 is greater than 4mV, and the pull-out force between the terminal body 10 and the wire 70 is less than 1600N, both of which are considered unqualified. In this case, the volume of the wedges 60 is too small to press the wire 70 firmly against the inner wall of the wedge portion 31. Conversely, when the ratio of the sum of the volumes of the wedges 60 to the internal volume of the wedge portion 31 is greater than 45%, the voltage drop between the terminal body 10 and the wire 70 is greater than 4mV, and the pull-out force between the terminal body 10 and the wire 70 is less than 1600N, both are considered unqualified. If the pull-out force between the terminals is less than 1600N, it is considered unqualified. In this case, the volume of the wedge 60 is too large, which prevents the wire 70 from being fully inserted into the wedge portion 31, resulting in a small contact area between the wire 70 and the wedge portion 31. When the ratio of the sum of the volumes of the wedge 60 to the internal volume of the wedge portion 31 is in the range of 1%-45%, the voltage drop and pull-out force between the terminal body 10 and the wire 70 are better than the qualified values, and the electrical and mechanical properties of the terminal wiring structure meet the requirements. Therefore, the inventors set the ratio of the sum of the volumes of the wedge 60 to the internal volume of the wedge portion 31 to be in the range of 1%-45%.

[0088] In one embodiment, after the wedge 60 enters the end of the conductor 70, the maximum radial cross-sectional area of ​​the wedge 60 and the conductor 70 is greater than the minimum internal cross-sectional area of ​​the wedge portion 31.

[0089] In one embodiment, the ratio of the inner radial cross-sectional area of ​​the cylindrical portion 32 to the outer circumferential area of ​​the conductor 70 ranges from 75% to 100%.

[0090] To verify the effect of the ratio of the internal radial cross-sectional area of ​​the cylindrical part 32 to the outer circular area of ​​the conductor 70 on the pull-out force and voltage drop of the terminal wiring structure, the inventors selected conductor 70 and wedge 60 of the same specification, cylindrical parts 32 with different internal radial cross-sectional areas, made a sample of the terminal wiring structure, and tested the pull-out force and voltage drop of the sample of the terminal wiring structure. The results are recorded in Table 2.

[0091] Table 2: The effect of the ratio of the internal radial cross-sectional area of ​​the cylindrical part 32 to the outer circumferential area of ​​the conductor 70 on the pull-out force and voltage drop of the terminal wiring structure.

[0092]

[0093] The pull-out force test method involves using a universal pull-out force testing machine. The terminal body 10 and the wire 70 are respectively fixed to the tensile fixture of the universal pull-out force testing machine, and pulled in opposite directions at a speed of 50 mm / min. The force at which the wire 70 finally detaches from the terminal body 10 is recorded as the pull-out force. In this embodiment, a pull-out force less than 1600 N is considered unqualified.

[0094] Voltage drop test method: Place terminal body 10 and wire 70 on a voltage drop testing platform, and test the voltage values ​​A and B of terminal body 10 and wire 70 respectively. Then test the voltage value C from terminal body 10 to wire 70. Calculate the value of C-(A+B) as the voltage drop at the connection point of terminal body 10 and wire 70. In this embodiment, a voltage drop greater than 4mV is considered unacceptable.

[0095] As can be seen from Table 2, when the ratio of the internal radial cross-sectional area of ​​the cylindrical part 32 to the outer circular area of ​​the wire 70 is less than 75%, the voltage drop between the terminal body 10 and the wire 70 is greater than 4mV, and the pull-out force between the terminal body 10 and the wire 70 is less than 1600N, both of which are considered unqualified. At this time, the contact area between the inside of the cylindrical part 32 and the wire 70 is small. However, when the internal radial cross-sectional area of ​​the cylindrical part 32 accounts for more than 100% of the outer circular area of ​​the wire 70, the cross-sectional area of ​​the wire 70 is too large, causing the wire 70 to be unable to be inserted into the inside of the cylindrical part 32, thus causing the terminal wiring structure to fail. Therefore, the inventors set the ratio of the internal radial cross-sectional area of ​​the cylindrical part 32 to the outer circular area of ​​the wire 70 to be in the range of 75%-100%.

[0096] In one embodiment, the ratio of the maximum radial width or diameter of the cylindrical portion 32 to the maximum radial width or diameter of the wedge portion 31 ranges from 45% to 95%.

[0097] To verify the effect of the ratio of the maximum radial width or diameter of the cylindrical part 32 to the maximum radial width or diameter of the wedge part 31 on the pull-out force and voltage drop of the terminal wiring structure, the inventors selected wires 70 and cylindrical parts 32 of the same specification and different wedge parts 31 and wedge bodies 60 of the corresponding size and specifications to make a sample of the terminal wiring structure. The pull-out force and voltage drop of the sample of the terminal wiring structure were tested and the results are recorded in Table 3.

[0098] Table 3: The effect of the ratio of the maximum radial width or diameter of the cylindrical portion 32 to the maximum radial width or diameter of the wedge-shaped portion 31 on the pull-out force and voltage drop of the terminal wiring structure.

[0099]

[0100] The pull-out force test method involves using a universal pull-out force testing machine. The terminal body 10 and the wire 70 are respectively fixed to the tensile fixture of the universal pull-out force testing machine, and pulled in opposite directions at a speed of 50 mm / min. The force at which the wire 70 finally detaches from the terminal body 10 is recorded as the pull-out force. In this embodiment, a pull-out force less than 1600 N is considered unqualified.

[0101] Voltage drop test method: Place terminal body 10 and wire 70 on a voltage drop testing platform, and test the voltage values ​​A and B of terminal body 10 and wire 70 respectively. Then test the voltage value C from terminal body 10 to wire 70. Calculate the value of C-(A+B) as the voltage drop at the connection point of terminal body 10 and wire 70. In this embodiment, a voltage drop greater than 4mV is considered unacceptable.

[0102] As can be seen from Table 3, when the ratio of the maximum radial width or diameter of the cylindrical portion 32 to the maximum radial width or diameter of the wedge portion 31 is greater than 95%, the voltage drop between the terminal body 10 and the wire 70 is greater than 4mV, and the pull-out force between the terminal body 10 and the wire 70 is less than 1600N, both of which are considered unqualified. In particular, when the ratio reaches 100%, since the cylindrical portion 32 and the wedge portion 31 are the same size, the wire 70 is not confined inside the wedge portion 31 and can be easily pulled out from the terminal body 10. When the ratio of the maximum radial width or diameter of the cylindrical portion 32 to the maximum radial width or diameter of the wedge portion 31 is less than 45%, the voltage drop and pull-out force between the terminal body 10 and the wire 70 are within the acceptable range, but the change is not significant. However, it is more costly and requires more raw materials to manufacture a terminal body 10 with a ratio of the maximum radial width or diameter of the cylindrical portion 32 to the maximum radial width or diameter of the wedge portion 31 of less than 45%, resulting in a waste of resources. Therefore, the inventors set the ratio of the maximum radial width or diameter of the cylindrical portion 32 to the maximum radial width or diameter of the wedge portion 31 to be in the range of 45%-95%.

[0103] In one embodiment, the ratio of the length of the wedge-shaped portion 31 to the length of the cylindrical portion 32 ranges from 5% to 100%.

[0104] To verify the effect of the ratio of the length of the wedge portion 31 to the length of the cylindrical portion 32 on the pull-out force and voltage drop of the terminal wiring structure, the inventors selected wedge portions 31 of the same size, cylindrical portions 32 of different lengths, and the same wires 70 to make a sample of the terminal wiring structure. The pull-out force and voltage drop of the sample of the terminal wiring structure were tested, and the results are recorded in Table 4.

[0105] Table 4: Effect of the ratio of the length of the wedge-shaped portion 31 to the length of the cylindrical portion 32 on the pull-out force and voltage drop of the terminal wiring structure

[0106]

[0107] The pull-out force test method involves using a universal pull-out force testing machine. The terminal body 10 and the wire 70 are respectively fixed to the tensile fixture of the universal pull-out force testing machine, and pulled in opposite directions at a speed of 50 mm / min. The force at which the wire 70 finally detaches from the terminal body 10 is recorded as the pull-out force. In this embodiment, a pull-out force less than 1600 N is considered unqualified.

[0108] Voltage drop test method: Place terminal body 10 and wire 70 on a voltage drop testing platform, and test the voltage values ​​A and B of terminal body 10 and wire 70 respectively. Then test the voltage value C from terminal body 10 to wire 70. Calculate the value of C-(A+B) as the voltage drop at the connection point of terminal body 10 and wire 70. In this embodiment, a voltage drop greater than 4mV is considered unacceptable.

[0109] As shown in Table 4, when the ratio of the length of the wedge-shaped portion 31 to the length of the cylindrical portion 32 is less than 5%, the voltage drop between the terminal body 10 and the wire 70 is greater than 4mV, and the pull-out force between the terminal body 10 and the wire 70 is less than 1600N, both of which are considered unqualified. In this case, the overlap length between the wire 70 and the wedge-shaped portion 31 is too small, resulting in a small contact area and low friction, leading to unqualified mechanical and electrical properties of the terminal wiring structure. Conversely, when the ratio of the length of the wedge-shaped portion 31 to the length of the cylindrical portion 32 is greater than 100%, the voltage drop and pull-out force between the terminal body 10 and the wire 70 are within acceptable limits, but the changes are not significant. A longer wedge-shaped portion 31 requires greater cost and more raw materials, resulting in wasted resources. Therefore, the inventors set the ratio of the length of the wedge-shaped portion 31 to the length of the cylindrical portion 32 to be between 5% and 100%.

[0110] In one embodiment of the present invention, the wire 70 is a flexible conductor, so that the wedge 60 can be inserted into the wire 70, causing the wire 70 to deform and expand, making the wire 70 in close contact with the inner wall of the wedge portion 31. The wire 70 can be a single conductor made of a flexible material, or, as... Figure 4 As shown, the wire 70 is composed of a bundle of multiple metal wires, and the wedge 60 can be inserted between the metal wires to make the wire 70 easy to deform.

[0111] In another embodiment, when the conductor 70 is a rigid conductor, such as Figure 7 and Figure 8As shown, the front end of the conductor 70 is provided with a slot 71 for at least accommodating the tip of the wedge 60. An opposing force is applied to the conductor 70 and the terminal body 10, which drives the wedge 60 into the slot 71 and deforms the conductor 70, causing it to expand outward. Preferably, the depth of the slot 71 is greater than the longitudinal length of the wedge 60.

[0112] In one embodiment, the outer periphery of the conductor 70 is provided with an insulating layer 72, such as... Figure 1 As shown, the insulation layer 72 at the end of the conductor 70 is removed, and the end is inserted into the wedge-shaped portion 31. The insulation layer 72 ensures the insulation of the conductor 70.

[0113] like Figure 1 , Figure 3 , Figure 6 and Figure 11 As shown, the electrical connection part 11 is connected to the closed end 212, and the closed end 212 is closed by the electrical connection part 11 to prevent the wire 70 from extending through the closed end 212.

[0114] Furthermore, the wiring portion 20 is detachably connected to the electrical connection portion 11, such as... Figure 11 As shown, the electrical connection portion 11 can block the wire 70, preventing it from extending from the closed end 212, thereby confining the wire 70 within the receiving cavity 21. The wiring portion 20 is detached from the electrical connection portion 11 to open the closed end 212 of the receiving cavity 21. At this time, the wire 70 and the wedge-shaped body 60 can extend from the closed end 212 to detach the wire 70 from the terminal body 10, facilitating disassembly and assembly. In one embodiment, the wiring portion 20 and the electrical connection portion 11 are threaded together. To remove them, the wiring portion 20 and the electrical connection portion 11 are rotated apart, and then the wedge-shaped body 60 is removed, allowing the wire 70 to be pulled out. In another embodiment, the wiring portion 20 and the electrical connection portion 11 can also be connected by snap-fit, screw, riveting, or locking.

[0115] In one embodiment, the wiring portion 20 is provided with a groove 41, in which a movable plate 42 is detachably connected, and the closed end 212 is closed by the movable plate 42, such as Figures 12-14 As shown, the movable plate 42 is inserted into the slide groove 41. The movable plate 42 prevents the wire 70 from extending from the closed end 212, thereby confining the wire 70 within the receiving cavity 21. Removing the movable plate 42 from the slide groove 41 opens the closed end 212 of the receiving cavity 21. At this point, the wire 70 and the wedge 60 can extend from the closed end 212, allowing the wire 70 to be separated from the terminal body 10 for easy assembly and disassembly. Furthermore, the electrical connection portion 11 is located on one side of the wiring portion 20, offset from the opening of the closed end 212 of the receiving cavity 21, facilitating the removal of the wedge 60 through this opening and the extraction of the wire 70.

[0116] In one embodiment, the wiring portion 20 includes a first split 51 and a second split 52 that are detachably connected, such as Figure 15 and Figure 16 As shown, the dividing and mating surface 53 of the first split part 51 and the second split part 52 extends longitudinally along the wiring portion 20. When the first split part 51 and the second split part 52 are combined together, the closed end 212 of the receiving cavity 21 remains closed, and the wire 70 and the wedge 60 cannot be removed from the receiving cavity 21. After the first split part 51 and the second split part 52 are separated, the receiving cavity 21 is opened, and the wedge 60 and the wire 70 can be removed from it to disassemble the wire 70 from the terminal body 10, which facilitates disassembly and assembly.

[0117] Furthermore, the first component 51 and the second component 52 are connected by an adhesive structure, magnetic structure, plug-in structure, snap-fit ​​structure, bolt connection structure, riveting structure, welding structure, binding structure, or locking structure 54 to ensure the firmness of the connection between the first component 51 and the second component 52, and to facilitate assembly and disassembly. The specific implementation method is as follows:

[0118] In the first feasible technical solution, an adhesive structure can be adopted, and the surfaces to be spliced ​​of the first part 51 and the second part 52 are fixedly connected by adhesive.

[0119] In the second feasible technical solution, a magnetic structure can be adopted, in which the first part 51 and the second part 52 are magnetically connected by a magnetic component, making the connection convenient and quick.

[0120] In the third feasible technical solution, a plug-in structure can be adopted, with a slot provided on the surface of the first split 51 and a pin provided on the surface of the second split 52. The pin is inserted into the slot and fixedly connected, thereby fixing the first split 51 and the second split 52 together.

[0121] In the fourth feasible technical solution, a snap-fit ​​structure can be adopted, with a first buckle set on the surface of the first split 51 to be spliced ​​and a slot set on the surface of the second split 52 to be spliced, so that the first split 51 and the second split 52 are fixedly connected.

[0122] In the fifth feasible technical solution, a bolted connection structure can be adopted. This structure includes a bolt and a nut. The bolt is fixed to the surface of the first segment 51 to be joined, and the nut is disposed on the surface of the second segment 52 to be joined and can rotate. The bolted connection structure securely connects the surfaces of the first segment 51 and the second segment 52 together. The bolted connection structure uses bolts and nuts with a minimum size of M3, and the minimum tightening torque is 0.2 N·m.

[0123] In the sixth feasible technical solution, a riveting structure can be adopted. The riveting structure includes a rivet and a fixing hole. The fixing hole is set on the surfaces to be spliced ​​of the first split 51 and the second split 52. The rivet passes through the fixing hole and deforms one end of the rivet, thereby tightening the first split 51 and the second split 52, thereby fixing the surfaces to be spliced ​​of the first split 51 and the second split 52 together.

[0124] In the seventh feasible technical solution, a welding structure can be adopted, in which the welded parts are placed on the surfaces to be joined of the first split 51 and the second split 52, and a welding machine is used to melt and connect the welded parts together, thereby fixing the surfaces to be joined of the first split 51 and the second split 52. The welding machine includes a hot melt welding machine or an ultrasonic welding machine.

[0125] In the eighth feasible technical solution, a binding structure can be adopted. The binding structure includes binding components. Grooves are provided on the surfaces of the first segment 51 and the second segment 52 to be spliced. The binding components are used to bind the surfaces of the first segment 51 and the second segment 52 to be spliced ​​together at the groove positions, thereby fixing the surfaces of the first segment 51 and the second segment 52 to be spliced ​​together. The binding components include cable ties, pipe clamps, or hook locks, etc.

[0126] In the ninth feasible technical solution, a locking structure 54 can be adopted. The locking structure 54 includes a locking member, which is located on the adjacent surface of the surfaces to be spliced ​​of the first split 51 and the second split 52 or on the surface to be spliced. The surfaces to be spliced ​​of the first split 51 and the second split 52 are fixedly connected by the locking member.

[0127] In one embodiment, the terminal body 10 is made of one or more of the following materials: nickel, cadmium, zirconium, chromium, cobalt, manganese, aluminum, tin, titanium, zinc, copper, silver, gold, phosphorus, tellurium, beryllium, and lead.

[0128] To demonstrate the effect of different materials on conductivity of the terminal body 10, the inventors used different materials to make samples of the terminal body 10 with the same specifications and dimensions, and tested the conductivity of the terminal body 10 respectively. The experimental results are shown in Table 5. In this embodiment, the ideal value is that the conductivity of the terminal body 10 is greater than 99%.

[0129] Table 5: Conductivity of terminal bodies 10 made of different materials

[0130]

[0131] As can be seen from Table 5, the conductivity of the terminal body 10 made of different metal materials is within the ideal range. Furthermore, phosphorus is a non-metallic material and cannot be directly used as the material for the terminal body, but it can be added to other metals to form alloys, improving the conductivity and mechanical properties of the metal itself. Therefore, the inventors set the material of the terminal body to contain one or more of the following: nickel, cadmium, zirconium, chromium, cobalt, manganese, aluminum, tin, titanium, zinc, copper, silver, gold, phosphorus, tellurium, beryllium, and lead.

[0132] In one embodiment, the terminal body 10 is made of tellurium copper alloy, and the tellurium content in the tellurium copper alloy is 0.1%-5%, which gives the terminal body 10 good conductivity and easy cutting performance, ensures electrical performance, and also improves machinability.

[0133] To verify the effect of tellurium content in the tellurium-copper alloy on the conductivity of the terminal body 10, the inventors selected 10 terminal bodies 10 of the same shape for testing. Each terminal body 10 had the same size and was made of tellurium-copper alloy, with tellurium content percentages of 0.05%, 0.1%, 0.2%, 0.5%, 0.8%, 1.2%, 2%, 3%, 5%, 6%, and 7%, respectively. Current was passed through the terminal bodies 10, and the conductivity was measured. The test results are shown in Table 6. In this embodiment, a conductivity greater than 99% is considered ideal.

[0134] Table 6: Effect of tellurium-copper alloys with different tellurium contents on the conductivity of terminal body 10

[0135]

[0136] Table 6 shows that when the tellurium content is less than 0.1% or greater than 5%, the conductivity decreases significantly and fails to meet the ideal conductivity requirement. The conductivity is best when the tellurium content is greater than or equal to 0.2% and less than or equal to 1.2%. While the conductivity meets the ideal requirement when the tellurium content is greater than 0.1% and less than 0.2%, or greater than 1.2% and less than or equal to 5%, the conductivity gradually decreases. Therefore, the inventors selected a tellurium-copper alloy with a tellurium content of 0.1%-5%. Ideally, a tellurium-copper alloy with a content of 0.2%-1.2% is selected.

[0137] In one embodiment, the terminal body 10 is made of a beryllium copper alloy, wherein the beryllium content in the beryllium copper alloy is 0.05%-5%. Preferably, the beryllium content in the terminal body material is 0.1% to 3.5%.

[0138] The terminal body 10 contains beryllium, which has high hardness, elastic limit, fatigue limit and wear resistance, as well as good corrosion resistance, thermal conductivity and electrical conductivity, and does not generate sparks when subjected to impact.

[0139] To test the effect of beryllium content on the conductivity of the terminal body 10, the inventors selected 10 terminal bodies 10 of the same shape and width for testing. Each terminal body contained beryllium, with beryllium content percentages of 0.03%, 0.05%, 0.1%, 0.2%, 1%, 1.8%, 3%, 3.5%, 5%, and 6%, respectively. The test results are shown in Table 7. In this embodiment, a conductivity greater than 99% is considered ideal.

[0140] Table 7: Effect of different beryllium contents on the conductivity of terminal body 10

[0141]

[0142] As shown in Table 7, when the beryllium content is less than 0.05% or greater than 5%, the conductivity decreases significantly and cannot meet practical requirements. The conductivity is best when the beryllium content is greater than or equal to 0.1% and less than or equal to 3.5%. Therefore, the inventors selected terminal bodies with a beryllium content of 0.05%-5%. In the most ideal scenario, terminal bodies 10 with a beryllium content of 0.1% to 3.5% are selected.

[0143] In one embodiment, the terminal body 10 is made of phosphor bronze alloy, and the phosphorus content in the phosphor bronze alloy is 0.01% to 1.5%. The advantages of phosphor bronze are that it has better corrosion resistance and wear resistance, which can ensure good contact of the terminal body 10, good elasticity, and excellent machinability, which can quickly shorten the part processing time.

[0144] To test the effect of phosphorus content on the conductivity of the terminal body 10, the inventors selected 10 terminal bodies 10 of the same shape and width for testing. Each terminal body 10 contained phosphorus, with phosphorus content percentages of 0.001%, 0.005%, 0.01%, 0.05%, 0.1%, 0.5%, 1%, 1.5%, 2%, and 2.5%, respectively. The test results are shown in Table 8. In this embodiment, a conductivity greater than 99% is considered ideal.

[0145] Table 8: Effect of different phosphorus contents on the conductivity of terminal body 10

[0146]

[0147] As shown in Table 8, when the phosphorus content is less than 0.01% or greater than 1.5%, the conductivity decreases significantly and cannot meet practical requirements. The conductivity is best when the phosphorus content is greater than or equal to 0.05% and less than or equal to 0.5%. Therefore, the inventors selected a terminal body 10 with a phosphorus content of 0.01%-1.5%. Ideally, a terminal body 10 with a phosphorus content of 0.05% to 0.5% is selected.

[0148] In one embodiment, the terminal body 10 is made of a leaded brass alloy, wherein the lead content in the leaded brass alloy is 0.1% to 5%. The advantages of leaded brass alloy are high strength, dense and uniform structure, good corrosion resistance, and excellent machinability such as cutting and drilling.

[0149] To test the effect of lead content on the conductivity of the terminal body, the inventors selected 10 terminal bodies 10 of the same shape and width for testing. Each terminal body 10 contained lead, with lead content percentages of 0.05%, 0.1%, 0.5%, 1%, 2%, 3%, 4%, 5%, 6%, and 7%, respectively. The test results are shown in Table 9. In this embodiment, a conductivity greater than 99% is considered ideal.

[0150] Table 9: Effect of different lead contents on the conductivity of terminal body 10

[0151]

[0152] As shown in Table 9, when the lead content is less than 0.1% or greater than 5%, the conductivity decreases significantly and cannot meet practical requirements. The conductivity is best when the lead content is greater than or equal to 1% and less than or equal to 3%. Therefore, the inventors selected terminal bodies with a lead content of 0.1%-5%. Ideally, terminal bodies with a lead content of 1% to 3% are selected.

[0153] In one embodiment, the material of the wedge 60 contains one or more of nickel, cadmium, zirconium, chromium, cobalt, manganese, aluminum, tin, titanium, zinc, copper, silver, gold, phosphorus, tellurium, beryllium and lead.

[0154] In one embodiment, at least a portion of the surface of the terminal body 10 is provided with a plating layer to improve corrosion resistance, improve conductivity, and extend service life.

[0155] Specifically, the inner wall of the connection between the wiring part 20 and the wire 70 is provided with a plating layer. When the terminal body 10 and the wire 70 are made of different materials, the plating layer can effectively reduce the contact resistance between the two, reduce the voltage drop between the wiring part 20 and the wire 70, and improve the electrical performance.

[0156] In another embodiment, the surface of the wiring portion 20 is not plated and is left exposed. When the wiring portion 20 is connected to the wire, the connection surfaces are connected by a pressing method, so that the two connection surfaces are in direct contact, which can reduce the contact resistance, reduce the voltage drop between the wiring portion 20 of the terminal body 10 and the wire 70, and improve the electrical performance of the terminal wiring structure.

[0157] In one embodiment, the plating material contains one or more of the following: gold, silver, nickel, tin, zinc, tin-lead alloy, silver-antimony alloy, palladium, palladium-nickel alloy, graphite silver, graphene silver, hard silver, and silver-gold-zirconium alloy. In most cases, the terminal body 10 uses copper. Copper, as a reactive metal, will undergo oxidation reactions with oxygen and water during use; therefore, one or more inactive metals are needed as the plating to extend the service life of the terminal body 10. The conductivity and stability of the aforementioned metals are superior to copper or copper alloys, enabling the terminal body 10 to achieve better electrical performance and a longer service life.

[0158] To demonstrate the impact of different plating materials on the overall performance of the terminal body 10, the inventors used terminal bodies 10 of the same specifications and materials but with different plating materials to conduct a series of corrosion resistance time tests. The experimental results are shown in Table 10.

[0159] The corrosion resistance time test in Table 10 involves placing the terminal body sample 10 into a salt spray test chamber and spraying salt spray on various locations of the sample. Every 20 hours, the sample is removed, cleaned, and the surface corrosion is observed; this constitutes one cycle. The test is stopped when the corroded area exceeds 10% of the total area, and the cycle number is recorded. In this embodiment, a cycle count less than 80 is considered unqualified.

[0160] Table 10: Influence of different plating materials on the corrosion resistance of 10 terminal body samples

[0161]

[0162] As can be seen from Table 10, when the coating material contains commonly used metals such as tin, nickel, and zinc, the experimental results are not as good as those with other selected metals. The experimental results with other metals exceed the standard values ​​by a large margin, and the performance is more stable. Therefore, the inventors selected coating materials containing one or more of the following: gold, silver, nickel, tin, zinc, tin-lead alloy, silver-antimony alloy, palladium, palladium-nickel alloy, graphite silver, graphene silver, hard silver, and silver-gold-zirconium alloy.

[0163] In one embodiment, the coating is applied by electroplating, chemical plating, magnetron sputtering, or vacuum plating.

[0164] Electroplating is a process that uses the principle of electrolysis to plate a thin layer of another metal or alloy onto the surface of a metal.

[0165] Chemical plating is a process in which metal is deposited through a controlled redox reaction catalyzed by a metal.

[0166] Magnetron sputtering utilizes the interaction of magnetic and electric fields to cause electrons to spiral near the target surface, thereby increasing the probability of electrons colliding with argon gas to generate ions. The generated ions then collide with the target surface under the influence of the electric field, thus sputtering the target material.

[0167] Vacuum plating is a method of depositing various metal and non-metal thin films on the surface of parts under vacuum conditions by means of distillation or sputtering.

[0168] This terminal wiring structure has the following advantages:

[0169] (1) The wire 70 and the wedge-shaped part 31 are tightly connected, the connection is stable and not easy to fall off, the contact area is increased, and the electrical and mechanical properties of the wire 70 and the terminal body 10 meet the requirements.

[0170] (2) The wedge 60 can be made of conductive metal to increase the conductive area between the wire 70 and the terminal body 10 and reduce the heat generation at the connection.

[0171] (3) The terminal block has a simple structure and is easy to operate, eliminating the need for crimping tools, and is suitable for scenarios such as wire harness repair and maintenance;

[0172] (4) Easy to disassemble and reassemble, and can be reused.

[0173] Option 2

[0174] The present invention provides a terminal block for use in the above-described terminal wiring structure. The terminal block includes a terminal body 10. The terminal body 10 includes a wiring portion 20 and an electrical connection portion 11 for connecting to an electrical device. The wiring portion 20 is provided with a receiving cavity 21 for accommodating a wire 70. The receiving cavity 21 has an open end 211 and a closed end 212. The receiving cavity 21 includes a wedge-shaped portion 31. The cross-section of the wedge-shaped portion 31 gradually increases along the direction from the open end 211 to the closed end 212.

[0175] The function and effect of this terminal block are basically the same as those of the terminal wiring structure described above, and will not be repeated here.

[0176] In one embodiment of the present invention, the terminal includes a wedge-shaped body 60 disposed within the wedge-shaped portion 31, the cross-section of the wedge-shaped body 60 gradually increasing from the open end 211 to the closed end 212; and the wedge-shaped body 60 is capable of entering the end of the wire 70.

[0177] The above descriptions are merely a few embodiments of the present invention. Those skilled in the art can make various modifications or variations to the embodiments of the present invention based on the content disclosed in the application documents without departing from the spirit and scope of the present invention.

Claims

1. A terminal wiring structure, characterized in that, include: Terminal body, wire, and wedge; The terminal body includes a wiring portion and an electrical connection portion for connecting to an electrical device. The wiring portion is provided with a receiving cavity for accommodating a wire. The receiving cavity has an open end and a closed end. The receiving cavity includes a wedge-shaped portion, and the cross-section of the wedge-shaped portion gradually increases from the open end to the closed end. The wedge is disposed within the wedge-shaped portion, and the cross-section of the wedge gradually increases from the open end to the closed end; furthermore, the wedge extends to the end of the wire. The sum of the volumes of the wedges and the sum of the volumes of the wires entering the wedges are greater than or equal to the internal volume of the wedges. The wiring portion is detachably connected to the electrical connection portion; The electrical connection portion is located on one side of the wiring portion; The wiring section is provided with a sliding groove, and a movable plate is detachably connected in the sliding groove. The closed end is closed through the movable plate. The wiring section includes a first part and a second part that are detachably connected, and the dividing and mating surfaces of the first part and the second part extend longitudinally along the wiring section.

2. The terminal wiring structure according to claim 1, characterized in that, After the wedge enters the end of the conductor, the maximum radial cross-sectional area of ​​the wedge and the conductor is greater than the minimum internal cross-sectional area of ​​the wedge portion.

3. The terminal wiring structure according to claim 1, characterized in that, The receiving cavity includes a cylindrical portion, and the cylindrical portion and the wedge-shaped portion are distributed sequentially along the direction from the open end to the closed end.

4. The terminal wiring structure according to claim 1, characterized in that, The wedge shape is a frustum, cone, elliptical frustum, elliptical cone, multi-faceted frustum, multi-faceted pyramid, semi-spindle frustum, or semi-spindle body.

5. The terminal wiring structure according to claim 1, characterized in that, The number of wedges is multiple, and the multiple wedges are arranged in a rectangular or circular pattern on the end face of the conductor.

6. The terminal wiring structure according to claim 1, characterized in that, The wedge-shaped body is made of non-metallic or metallic material.

7. The terminal wiring structure according to claim 1, characterized in that, The cross-sectional shape of the wedge-shaped part is circular, elliptical, square, polygonal, cross-shaped, E-shaped, F-shaped, H-shaped, K-shaped, L-shaped, T-shaped, U-shaped, V-shaped, W-shaped, X-shaped, Y-shaped, Z-shaped, semi-arc, arc-shaped, or wavy.

8. The terminal wiring structure according to claim 1, characterized in that, The ratio of the sum of the volumes of the wedges to the internal volume of the wedge portion ranges from 1% to 45%.

9. The terminal wiring structure according to claim 3, characterized in that, The ratio of the internal radial cross-sectional area of ​​the cylindrical part to the circumscribed circle area of ​​the conductor ranges from 75% to 100%.

10. The terminal wiring structure according to claim 3, characterized in that, The ratio of the maximum radial width or diameter of the cylindrical portion to the maximum radial width or diameter of the wedge-shaped portion ranges from 45% to 95%.

11. The terminal wiring structure according to claim 3, characterized in that, The ratio of the length of the wedge-shaped portion to the length of the cylindrical portion ranges from 5% to 100%.

12. The terminal wiring structure according to claim 1, characterized in that, The wire is a flexible conductor and contains multiple metal wires.

13. The terminal wiring structure according to claim 1, characterized in that, When the conductor is a rigid conductor, the front end of the conductor is provided with a slot to at least accommodate the tip of the wedge.

14. The terminal wiring structure according to claim 1, characterized in that, The electrical connection is connected to the closed end, and the closed end is sealed through the electrical connection.

15. The terminal wiring structure according to claim 1, characterized in that, The first component and the second component are connected by an adhesive structure, magnetic structure, plug-in structure, snap-fit ​​structure, bolt connection structure, riveting structure, welding structure, binding structure or locking structure.

16. The terminal wiring structure according to claim 1, characterized in that, The terminal body is made of one or more of the following materials: nickel, cadmium, zirconium, chromium, cobalt, manganese, aluminum, tin, titanium, zinc, copper, silver, gold, phosphorus, tellurium, beryllium, and lead.

17. The terminal wiring structure according to claim 1, characterized in that, The terminal body material contains a tellurium-copper alloy, and the tellurium content in the tellurium-copper alloy is 0.1%-5%.

18. The terminal wiring structure according to claim 1, characterized in that, The terminal body material contains a beryllium copper alloy, and the beryllium content in the beryllium copper alloy is 0.05%-5%.

19. The terminal wiring structure according to claim 1, characterized in that, The terminal body material contains phosphor bronze alloy, and the phosphorus content in the phosphor bronze alloy is 0.01% to 1.5%.

20. The terminal wiring structure according to claim 1, characterized in that, The terminal body material contains a leaded brass alloy, and the lead content in the leaded brass alloy is 0.1% to 5%.

21. The terminal wiring structure according to claim 1, characterized in that, At least a portion of the surface of the terminal body is provided with a plating layer.

22. The terminal wiring structure according to claim 21, characterized in that, The coating material contains one or more of the following: gold, silver, nickel, tin, zinc, tin-lead alloy, silver-antimony alloy, palladium, palladium-nickel alloy, graphite silver, graphene silver, hard silver, and silver-gold-zirconium alloy.

23. The terminal wiring structure according to claim 21, characterized in that, The coating is applied by electroplating, chemical plating, magnetron sputtering, or vacuum plating.

24. A terminal block, characterized in that, The terminal wiring structure applied to any one of claims 1-23, wherein the terminal includes a terminal body; The terminal body includes a wiring portion and an electrical connection portion for connecting to an electrical device. The wiring portion is provided with a receiving cavity for accommodating a wire. The receiving cavity has an open end and a closed end. The receiving cavity includes a wedge-shaped portion, the cross-section of which gradually increases from the open end to the closed end.

25. The terminal block according to claim 24, characterized in that, The terminal block includes a wedge-shaped body disposed within the wedge-shaped portion. The cross-section of the wedge-shaped body gradually increases from the open end to the closed end. Furthermore, the wedge-shaped body can enter the end of the wire.

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