An electrical connector terminal

Abstract

The application relates to the technical field of electric connectors, in particular to an electric connector wiring terminal which comprises a male wiring terminal and a female wiring terminal, the male wiring terminal comprises a first shell, the inside of the first shell is provided with a plurality of cables, the cable is composed of an insulating sheath and a core; the female wiring terminal comprises a second shell, the second shell is coaxially inserted and matched with the first shell, the inside of the second shell is provided with a plurality of stripping assemblies, the stripping assemblies correspond to the ends of the cables one by one, each stripping assembly comprises a first cutting assembly and a second cutting assembly, the first cutting assembly comprises a first cutting knife and a first conductive sheet, the second cutting assembly comprises a second cutting knife and a second conductive sheet; a driving assembly is arranged on the second shell, the driving assembly can rotate the first cutting knife and the second cutting knife in the direction away from the axis of the second shell, so that the insulating sheath of the cable end is stripped from the core, meanwhile, the first conductive sheet and the second conductive sheet are in contact with the core, and the electric conduction stability is improved.

Description

Technical Field

[0001] This invention relates to the field of electrical connector technology, and in particular to an electrical connector terminal block. Background Technology

[0002] Electrical connectors typically feature a piercing section, which is U-shaped and cuts the cable's insulation after it enters the piercing section. For example, patent application CN119764878A discloses an anti-loosening electrical connector for electromechanical equipment, comprising a coaxially inserted ferrule and a piercing tube. Multiple cables are held inside the ferrule, and the piercing tube has multiple piercing tabs, each corresponding to a cable. Each piercing tab has a locking groove, and the groove contains a cutting section for cutting the cable's insulation.

[0003] However, this cutting method can only scratch the insulation sheath, creating only a gap in it. This gap results in a small conductive contact area between the conductive sheet and the wire core, thus leading to poor conductivity stability of the electrical connector. Summary of the Invention

[0004] Therefore, it is necessary to provide an electrical connector terminal to address the current technical problem of poor conductivity stability in electrical connectors.

[0005] The above objectives are achieved through the following technical solutions:

[0006] An electrical connector terminal block includes a male terminal block and a female terminal block. The male terminal block includes a first housing. Multiple cables are arranged circumferentially inside the first housing. The end of each cable extends radially along the first housing. The cable consists of an insulating sheath and a wire core.

[0007] The female terminal block includes a second housing, which is coaxially connected to the first housing. The interior of the second housing has multiple stripping components arranged circumferentially, each corresponding to one end of the cable. Each stripping component includes a first cutting component and a second cutting component. The first and second cutting components have the same structure; the first cutting component includes a first cutting blade and a first conductive sheet, and the second cutting component includes a second cutting blade and a second conductive sheet. The lengths of both the first and second cutting blades extend axially along the second housing.

[0008] In the initial state, the first cutting blade and the second cutting blade are positioned opposite each other; the end of the cable can enter between the first cutting blade and the second cutting blade; the second housing is provided with a driving component, which can make the first cutting blade and the second cutting blade rotate in a direction away from the axis of the second housing, thereby peeling the insulation sheath of the cable end from the wire core, and at the same time, the first conductive sheet and the second conductive sheet contact the wire core.

[0009] Further, the first cutting assembly further comprises a first driving rod, the length of the first driving rod extends along the axial direction of the second shell, one end of the first driving rod close to the first shell is connected with a first connecting seat, the length of the first connecting seat extends along the radial direction of the first driving rod, and the first cutting knife and the first conductive sheet are arranged on the first connecting seat; the second cutting assembly further comprises a second driving rod, the length of the second driving rod extends along the axial direction of the second shell, one end of the second driving rod close to the first shell is connected with a second connecting seat, the length of the second connecting seat extends along the radial direction of the second driving rod, and the second cutting knife and the second conductive sheet are arranged on the second connecting seat.

[0010] Further, the first conductive sheet and the second conductive sheet are arc-shaped conductive sheets, the arc length of the arc-shaped conductive sheet extends along the axial direction of the second shell, and the radius of the arc-shaped conductive sheet is consistent with the maximum radius of the wire core.

[0011] Further, the driving assembly comprises a driving ring coaxially arranged outside the second shell, the inside of the second shell is coaxially provided with an inner rotating ring and an outer rotating ring, and the inner rotating ring is located inside the outer rotating ring; the driving ring, the outer rotating ring and the inner rotating ring are fixedly connected through connecting rods, the connecting rods extend along the radial direction of the second shell, the outer circumferential surface of the inner rotating ring is provided with an outer gear ring, the inner circumferential surface of the outer rotating ring is provided with an inner gear ring, one end of the first driving rod away from the first shell is provided with a first gear, one end of the second driving rod away from the first shell is provided with a second gear, the first gear is engaged with the outer gear ring, the second gear is engaged with the inner gear ring, and the first driving rod and the second driving rod can synchronously and reversely rotate.

[0012] Further, a plurality of connecting rods are arranged, a plurality of arc-shaped grooves are arranged in the circumferential direction of the second shell, the arc-shaped grooves are coaxially arranged with the second shell, the connecting rods correspond to the arc-shaped grooves in one-to-one correspondence, and the connecting rods can slide along the arc-shaped grooves.

[0013] Further, the first connecting seat is provided with a first long hole extending along the length direction thereof, the second connecting seat is provided with a second long hole extending along the length direction thereof, the end portion of the first driving rod can slide along the first long hole, the end portion of the second driving rod can slide along the second long hole, a first compression spring is arranged between the end portion of the first driving rod and the inner wall of the first long hole, a second compression spring is arranged between the end portion of the second driving rod and the inner wall of the second long hole, the first compression spring has a tendency to make the first connecting seat close to the axial line of the second shell, and the second compression spring has a tendency to make the second connecting seat close to the axial line of the second shell.

[0014] Furthermore, the first outer shell is provided with a plurality of heat dissipation pipes in a circumferential direction. The heat dissipation pipes extend radially along the first outer shell, and each heat dissipation pipe corresponds to a cable. An expansion assembly is provided in the heat dissipation pipe. The expansion assembly includes a screwing post, which is threaded into the heat dissipation pipe. A conical cylinder is provided at one end of the screwing post near the axis of the first outer shell. A plurality of push pins are provided on the inner wall of the conical cylinder. The axis of the push pins is perpendicular to the generatrix of the conical cylinder.

[0015] Furthermore, the inner wall of the conical cylinder is provided with a groove extending along its generatrix, and the push pin can slide along the groove.

[0016] Furthermore, the push pin is a conical pin, which has a large end and a small end. The large end of the conical pin slides along the groove, and the small end of the conical pin is used to insert into the wire core.

[0017] Furthermore, the end of the screwing column away from the axis of the first housing is provided with a drive groove, into which a tool is inserted to drive the screwing column to rotate.

[0018] The beneficial effects of this invention are:

[0019] The electrical connector terminal provided by this invention, firstly, in use, after the first housing and the second housing are plugged in, the end of the cable enters between the first cutting blade and the second cutting blade. The first cutting blade and the second cutting blade first cut the insulation sheath of the cable, and then the driving assembly makes the first cutting blade and the second cutting blade rotate in a direction away from the axis of the second housing, so that the insulation sheath of the cable end is peeled off from the wire core. At the same time, the first conductive plate and the second conductive plate contact the wire core. Since the insulation sheath has been peeled off from the wire core, the conductive contact area between the first conductive plate and the second conductive plate and the wire core is large, thereby improving the conductivity stability of the electrical connector.

[0020] Second, the multiple push pins of the expansion assembly can be inserted into the wire core, thereby increasing the diameter of the wire core. This makes the wire core fit more tightly with the first conductive sheet and the second conductive sheet, further improving the conductivity stability. Attached Figure Description

[0021] Figure 1 A three-dimensional structural schematic diagram of an electrical connector terminal block provided in an embodiment of the present invention;

[0022] Figure 2 This is a cross-sectional view of the wiring terminal of an electrical connector according to an embodiment of the present invention;

[0023] Figure 3 for Figure 2 Enlarged view of the structure at point X;

[0024] Figure 4 for Figure 3 Enlarged view of the structure at point Y in the middle;

[0025] Figure 5 A top view of an electrical connector terminal provided by an embodiment of the present application is shown in the figure;

[0026] Figure 6 A Figure 5 A-A cross-sectional view in the figure;

[0027] Figure 7 A Figure 6 An enlarged view of the structure at Z in the figure;

[0028] Figure 8 A Figure 5 B-B cross-sectional view in the figure;

[0029] Figure 9 A Figure 8 An enlarged view of the structure at W in the figure.

[0030] Wherein:

[0031] 101, first housing; 102, second housing; 1021, arc-shaped groove; 103, cable; 104, wire; 105, heat dissipation pipe; 200, stripping assembly; 201, driving ring; 202, connecting rod; 203, outer rotating ring; 204, inner rotating ring; 205, first gear; 2051, first driving rod; 206, first conductive sheet; 207, second gear; 2071, second driving rod; 208, second conductive sheet; 209, first cutting knife; 210, second cutting knife; 211, first compression spring; 212, first connecting seat; 213, second connecting seat; 214, second compression spring; 300, expanding assembly; 301, screwing column; 302, mounting ring; 303, conical cylinder; 3031, sliding groove; 304, conical needle; 305, driving groove. DETAILED DESCRIPTION

[0032] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application is further described in detail below with reference to the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application.

[0033] The ordinal numbers of components in the specification, such as "first", "second", etc., are merely used to distinguish the described objects, and do not have any sequential or technical meanings. The "connection" and "coupling" in the present application include direct and indirect connections (couplings) unless otherwise specified. In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0034] In the present application, unless otherwise explicitly specified and limited, the "on" or "under" of a first feature to a second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the "over", "above" and "on" of the first feature to the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "under", "below" and "under" of the first feature to the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0035] As Figures 1 to 9As shown, an embodiment of the present application provides an electric connector terminal, which comprises a male terminal and a female terminal. The male terminal comprises a first shell 101, and a plurality of cables 103 are arranged in the circumferential direction inside the first shell 101. The end of each cable 103 extends in the radial direction of the first shell 101. The cable 103 is composed of an insulating sheath and a core. The female terminal comprises a second shell 102, which is coaxially inserted into the first shell 101. A plurality of stripping assemblies 200 are arranged in the circumferential direction inside the second shell 102. The stripping assembly 200 corresponds to the end of the cable 103. Each stripping assembly 200 comprises a first cutting assembly and a second cutting assembly. The first cutting assembly and the second cutting assembly have the same structure, and are respectively arranged on both sides of the cable 103 in the circumferential direction of the second shell 102. The first cutting assembly comprises a first cutting knife 209 and a first conductive sheet 206, and the second cutting assembly comprises a second cutting knife 210 and a second conductive sheet 208. The length of the first cutting knife 209 and the second cutting knife 210 extends in the axial direction of the second shell 102. In the initial state, the first cutting knife 209 and the second cutting knife 210 are arranged opposite to each other, and the end of the cable 103 can enter between the first cutting knife 209 and the second cutting knife 210. The second shell 102 is provided with a driving assembly, which can drive the first cutting knife 209 and the second cutting knife 210 to rotate in the direction away from the axis of the second shell 102, so as to strip the insulating sheath of the end of the cable 103 from the core, and the first conductive sheet 206 and the second conductive sheet 208 contact the core.

[0036] In use, after the first shell 101 and the second shell 102 are inserted, the end of the cable 103 enters between the first cutting knife 209 and the second cutting knife 210. The first cutting knife 209 and the second cutting knife 210 first cut the insulating sheath of the cable 103. Then the driving assembly drives the first cutting knife 209 and the second cutting knife 210 to rotate in the direction away from the axis of the second shell 102, so as to strip the insulating sheath of the end of the cable 103 from the core. The rotation of the first cutting knife 209 and the second cutting knife 210 can tear the connected part of the insulating sheath from the core, so as to increase the exposed area of the core in the circumferential direction. At the same time, the first conductive sheet 206 and the second conductive sheet 208 contact the core. Since the insulating sheath has been stripped from the core, the conductive contact area of the first conductive sheet 206 and the second conductive sheet 208 with the core is large, so as to improve the conductive stability of the electric connector.

[0037] Specifically, the first cutting assembly further includes a first drive rod 2051, the length of which extends axially along the second housing 102. A first connecting seat 212 is connected to one end of the first drive rod 2051 near the first housing 101. The length of the first connecting seat 212 extends radially along the first drive rod 2051. The first cutting blade 209 and the first conductive sheet 206 are both disposed on the first connecting seat 212. The second cutting assembly further includes a second drive rod 2071, the length of which extends axially along the second housing 102. A second connecting seat 213 is connected to one end of the second drive rod 2071 near the first housing 101. The length of the second connecting seat 213 extends radially along the second drive rod 2071. The second cutting blade 210 and the second conductive sheet 208 are both disposed on the second connecting seat 213. This allows the first cutting blade 209 and the first conductive sheet 206 to rotate synchronously, and the second cutting blade 210 and the second conductive sheet 208 to rotate synchronously.

[0038] like Figures 6 to 9 As shown, both the first conductive sheet 206 and the second conductive sheet 208 are arc-shaped conductive sheets. The arc length of the arc-shaped conductive sheet extends along the axial direction of the second outer shell 102, and the radius of the arc-shaped conductive sheet is consistent with the maximum radius of the wire core. This results in a large conductive contact area between the arc-shaped conductive sheet and the wire core when the arc-shaped conductive sheet rotates to the position of contact with the wire core. The second outer shell 102 contains multiple wires 104, and the arc-shaped contact sheet corresponds one-to-one with each wire 104 and is conductively connected, thus achieving a conductive connection between the male contact terminal and the female contact terminal.

[0039] The drive assembly includes a drive ring 201 coaxially rotatably disposed outside the second housing 102. An inner rotating ring 204 and an outer rotating ring 203 are coaxially disposed inside the second housing 102, with the inner rotating ring 204 located inside the outer rotating ring 203. The drive ring 201, outer rotating ring 203, and inner rotating ring 204 are fixedly connected by a connecting rod 202 extending radially along the second housing 102. An outer gear ring is provided on the outer circumferential surface of the inner rotating ring 204, and an inner gear ring is provided on the inner circumferential surface of the outer rotating ring 203. A first gear 205 is provided at the end of the first drive rod 2051 away from the first housing 101, and a second gear 207 is provided at the end of the second drive rod 2071 away from the first housing 101. The first gear 205 meshes with the outer gear ring, and the second gear 207 meshes with the inner gear ring. The first drive rod 2051 and the second drive rod 2071 can rotate synchronously in opposite directions.

[0040] In order to avoid interference, the inner gear ring on the outer rotating ring 203 and the outer gear ring on the inner rotating ring 204 are arranged axially staggered on the second housing 102. The transmission ratio of the outer gear ring to the first gear 205 is the same as the transmission ratio of the inner gear ring to the second gear 207, so that the rotation speed of the first gear 205 and the second gear 207 is consistent and the rotation directions are opposite, thereby ensuring that the first cutting knife 209 and the second cutting knife 210 can be synchronously and reversely rotated.

[0041] Further, the connecting rod 202 is provided in plurality, and the second housing 102 is provided with a plurality of arc-shaped grooves 1021 in the circumferential direction, the arc-shaped grooves 1021 are coaxially arranged with the second housing 102, the connecting rod 202 corresponds to the arc-shaped grooves 1021 one by one, and the connecting rod 202 can slide along the arc-shaped grooves 1021. The arc-shaped grooves 1021 can limit the rotation angle of the connecting rod 202, thereby limiting the rotation angle of the inner rotating ring 204 and the outer rotating ring 203, further controlling the rotation angle of the first cutting knife 209 and the second cutting knife 210, and ensuring that the insulating sheath on the cable 103 can be just stripped.

[0042] The first connecting seat 212 is provided with a first long hole extending along the length direction thereof, the second connecting seat 213 is provided with a second long hole extending along the length direction thereof, the end of the first driving rod 2051 can slide along the first long hole, the end of the second driving rod 2071 can slide along the second long hole, the first compression spring 211 is arranged between the end of the first driving rod 2051 and the inner wall of the first long hole, the second compression spring 214 is arranged between the end of the second driving rod 2071 and the inner wall of the second long hole, the first compression spring 211 has a tendency to make the first connecting seat 212 close to the axis of the second housing 102, and the second compression spring 214 has a tendency to make the second connecting seat 213 close to the axis of the second housing 102.

[0043] When the first connecting seat 212 rotates with the first driving rod 2051 and the second connecting seat 213 rotates with the second driving rod 2071, the first conductive sheet 206 and the second conductive sheet 208 will extrude the cable 103, so that the first compression spring 211 and the second compression spring 214 are both contracted, the first connecting seat 212 can slide relative to the first driving rod 2051, and the second connecting seat 213 can slide relative to the second driving rod 2071, thereby avoiding rotation interference, when the first conductive sheet 206 and the second conductive sheet 208 are both rotated to the positions corresponding to the outer circumferential surface of the wire core, the first compression spring 211 and the second compression spring 214 can be both elongated, thereby resetting the first connecting seat 212 and the second connecting seat 213, and the first conductive sheet 206 and the second conductive sheet 208 are both attached to the outer circumferential surface of the wire core.

[0044] The interior of the second shell 102 is fixed with a plurality of limiting convex strips, and the first driving rod 2051 and the second driving rod 2071 are both rotated in the limiting convex strips, so that displacement of the first driving rod 2051 and the second driving rod 2071 is avoided.

[0045] As shown in Figure 3 and Figure 4 The first shell 101 is provided with a plurality of heat dissipation pipes 105 in the circumferential direction, the heat dissipation pipes 105 extend along the radial direction of the first shell 101, and the heat dissipation pipes 105 correspond to the cables 103 one by one, the heat dissipation pipes 105 are provided with expansion assemblies 300, the expansion assembly 300 comprises a screwing column 301, the screwing column 301 is threadedly connected in the heat dissipation pipe 105, one end of the screwing column 301 close to the axis of the first shell 101 is connected with a conical cylinder 303 through a mounting ring 302, the inner wall of the conical cylinder 303 is provided with a plurality of push pins, and the axis of the push pin is perpendicular to the generatrix of the conical cylinder 303. The expansion assembly 300 is made of metal material, and the heat dissipation pipe 105 and the expansion assembly 300 can dissipate heat for the cable 103, so that the temperature of the cable 103 is prevented from being too high.

[0046] The wire core is composed of a plurality of copper wires. The plurality of push pins of the expansion assembly 300 can be inserted between the copper wires of the wire core, so that the copper wires are expanded outwardly, and then the diameter of the wire core is increased, so that the wire core is more closely attached to the first conductive sheet 206 and the second conductive sheet 208, and the conductive stability is further improved.

[0047] As shown in Figure 4 The inner wall of the conical cylinder 303 is provided with a sliding groove 3031 extending along the generatrix thereof, and the push pin can slide along the sliding groove 3031. The push pin is a conical pin 304, the conical pin 304 has a large end and a small end, the large end of the conical pin 304 slides along the sliding groove 3031, and the small end of the conical pin 304 is used for inserting into the wire core. The design of the conical pin 304 facilitates insertion into the gap between the copper wires.

[0048] Further, one end of the screwing column 301 away from the axis of the first shell 101 is provided with a driving groove 305, the driving groove 305 is used for extending into a tool so as to drive the screwing column 301 to rotate. The driving groove 305 is a slot or a cross groove, and the screwing column 301 is driven to rotate through a screwdriver.

[0049] In combination with the above embodiment, the use principle and working process of the embodiment of the application are as follows:

[0050] The first shell 101 is inserted into the second shell 102, so that the end of the cable 103 in the first shell 101 can enter between the first cutting knife 209 and the second cutting knife 210 of the second shell 102, the first cutting knife 209 and the second cutting knife 210 first cut the insulating sheath of the cable 103, then rotate the driving ring 201, so that the driving ring 201 drives the inner rotating ring 204 and the outer rotating ring 203 to rotate synchronously, so that the outer rotating ring 203 drives the second gear 207 to rotate through the inner gear ring, and then drives the second connecting seat 213 to rotate through the second driving rod 2071, the second connecting seat 213 drives the second cutting knife 210 and the second conductive sheet 208 to rotate, the inner rotating ring 204 drives the first gear 205 to rotate through the outer gear ring, and then drives the first connecting seat 212 to rotate through the first driving rod 2051, the first connecting seat 212 drives the first cutting knife 209 and the first conductive sheet 206 to rotate, the first cutting knife 209 and the second cutting knife 210 rotate away from the axis of the second shell 102, so that the insulating sheath of the end of the cable 103 is stripped from the core, the stripped part is pressed and corresponds to the tapered cylinder 303 of the expansion assembly 300, and the first conductive sheet 206 and the second conductive sheet 208 contact the core. Since the insulating sheath has been stripped from the core, the first conductive sheet 206 and the second conductive sheet 208 have a large conductive contact area with the core, so that the conductive stability of the electrical connector is improved.

[0051] Then the screwdriver drives the rotating column 301 to rotate, the rotation of the rotating column 301 makes the tapered cylinder 303 gradually approach the core, the tapered cylinder 303 can accommodate the stripped insulating sheath, the small end of the conical needle 304 gradually inserts into the core, and the continued rotation of the rotating column 301 can make the large end of the conical needle 304 slide along the sliding groove 3031. Since the conical needle 304 is always perpendicular to the generatrix of the tapered cylinder 303, the diameter of the circle where the plurality of conical needles 304 are located decreases, so that the conical needle 304 can enter a position closer to the center of the core, so that the diameter of the core is further increased, and then the core is more closely attached to the first conductive sheet 206 and the second conductive sheet 208. After being used for a period of time, the rotating column 301 can be continuously driven to rotate by the screwdriver, so that the small end of the conical needle 304 inserts into the core to a greater depth, and since the conical needle 304 is conical, the size of the conical needle 304 inserted between the copper wires of the core increases, which can avoid loosening caused by plastic deformation of the core and improve the stability of the conductive connection.

[0052] The technical features of the above embodiments can be combined in any way, and to make the description concise, not all possible combinations of the technical features in the above embodiments are described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the description.

[0053] The above embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, several modifications and improvements can be made, which are within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. An electrical connector terminal, characterized by, The male terminal comprises a first shell, and a plurality of cables are arranged in the circumferential direction inside the first shell, and the end of each cable extends along the radial direction of the first shell, and the cable is composed of an insulating sheath and a core; The female terminal comprises a second shell which is coaxially inserted into the first shell, and a plurality of stripping assemblies are arranged in the circumferential direction inside the second shell, and the stripping assembly corresponds to the end of the cable, and each stripping assembly comprises a first cutting assembly and a second cutting assembly, the first cutting assembly and the second cutting assembly are the same structure, the first cutting assembly comprises a first cutting knife and a first conductive sheet, and the second cutting assembly comprises a second cutting knife and a second conductive sheet; the length of the first cutting knife and the second cutting knife extends along the axial direction of the second shell; In the initial state, the first cutting knife and the second cutting knife are arranged opposite to each other, and the end of the cable can enter between the first cutting knife and the second cutting knife; the second shell is provided with a driving assembly, the driving assembly can rotate the first cutting knife and the second cutting knife away from the axis of the second shell, so as to strip the insulating sheath of the cable end from the core, and at the same time, the first conductive sheet and the second conductive sheet are in contact with the core, the first cutting assembly further comprises a first driving rod, the length of the first driving rod extends along the axial direction of the second shell, one end of the first driving rod close to the first shell is connected with a first connecting seat, the length of the first connecting seat extends along the radial direction of the first driving rod, and the first cutting knife and the first conductive sheet are arranged on the first connecting seat; The second cutting assembly further comprises a second driving rod, the length of the second driving rod extends along the axial direction of the second shell, one end of the second driving rod close to the first shell is connected with a second connecting seat, the length of the second connecting seat extends along the radial direction of the second driving rod, the second cutting knife and the second conductive sheet are arranged on the second connecting seat, the first conductive sheet and the second conductive sheet are arc-shaped conductive sheets, the arc length of the arc-shaped conductive sheet extends along the axial direction of the second shell, the radius of the arc-shaped conductive sheet is consistent with the maximum radius of the core, the driving assembly comprises a driving ring coaxially arranged outside the second shell, the inside of the second shell is coaxially provided with an inner rotating ring and an outer rotating ring, and the inner rotating ring is located inside the outer rotating ring; the driving ring, the outer rotating ring and the inner rotating ring are fixedly connected through a connecting rod, the connecting rod extends along the radial direction of the second shell, the outer periphery of the inner rotating ring is provided with an outer gear ring, the inner periphery of the outer rotating ring is provided with an inner gear ring, one end of the first driving rod away from the first shell is provided with a first gear, one end of the second driving rod away from the first shell is provided with a second gear, the first gear is engaged with the outer gear ring, the second gear is engaged with the inner gear ring, and the first driving rod and the second driving rod can be synchronously and reversely rotated.

2. The electrical connector terminal of claim 1, wherein, The connecting rod is provided with a plurality of arc-shaped grooves in the circumferential direction of the second shell, the arc-shaped groove is coaxially arranged with the second shell, the connecting rod corresponds to the arc-shaped groove, and the connecting rod can slide along the arc-shaped groove.

3. The electrical connector terminal of claim 2, wherein, The first connecting seat is provided with a first long hole extending along the length direction thereof, the second connecting seat is provided with a second long hole extending along the length direction thereof, the end of the first driving rod is slidable along the first long hole, the end of the second driving rod is slidable along the second long hole, the first compression spring is arranged between the end of the first driving rod and the inner wall of the first long hole, the second compression spring is arranged between the end of the second driving rod and the inner wall of the second long hole, the first compression spring has a tendency to make the first connecting seat close to the second shell axis, and the second compression spring has a tendency to make the second connecting seat close to the second shell axis.

4. The electrical connector terminal of claim 1, wherein, The first shell is provided with a plurality of heat dissipation pipes in the circumferential direction, the heat dissipation pipes extend along the radial direction of the first shell, and the heat dissipation pipes correspond to the cables one by one, the heat dissipation pipe is provided with an expansion assembly, the expansion assembly comprises a screwing column, the screwing column is threadedly connected in the heat dissipation pipe, one end of the screwing column close to the first shell axis is provided with a conical cylinder, the inner wall of the conical cylinder is provided with a plurality of pushing needles, and the axis of the pushing needle is perpendicular to the generatrix of the conical cylinder.

5. The electrical connector terminal of claim 4, wherein, The inner wall of the conical cylinder is provided with a sliding groove extending along the generatrix thereof, and the pushing needle is slidable along the sliding groove.

6. The electrical connector terminal of claim 5, wherein, The pushing needle is a conical needle, the conical needle has a large end and a small end, the large end of the conical needle slides along the sliding groove, and the small end of the conical needle is used for inserting into the wire core.

7. The electrical connector terminal of claim 4, wherein, One end of the screwing column away from the first shell axis is provided with a driving groove, and a tool is inserted into the driving groove to drive the screwing column to rotate.

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