Copper-aluminum terminal connector

Abstract

The invention discloses a copper-aluminum terminal connector in the technical field of copper-aluminum terminal connectors, which comprises a first shell and a second shell, and the end parts of the first shell and the second shell are attached to each other; in the process of connecting a copper wire and an aluminum wire, a limiting ring and a limiting plate are used for limiting a first connecting plug and a second connecting plug, so that the first connecting plug and the second connecting plug can be kept stable after being mounted in the first shell and the second shell, and it is ensured that the copper wire and the aluminum wire can be kept fixed after being mounted; and the second connecting plug is clamped by using the contact piece, so that stable conduction of electric power after connection of the first connecting plug and the second connecting plug is ensured, and the situation that the first connecting plug and the second connecting plug are directly sleeved and matched in the use process, so that the electric power is stably conducted is avoided. The first connecting plug and the second connecting plug can shake, so that the contact is unstable, and the power conduction effect is influenced.

Description

Technical Field

[0001] The invention relates to the technical field of copper-aluminum terminal connectors, in particular to a copper-aluminum terminal connector. Background Art

[0002] The connection terminals of power grid cables are usually made of copper, while aluminum has become a commonly used cable material due to its advantages such as easy availability and light weight. When photovoltaic lines use aluminum or aluminum alloy conductor cables, the connection between copper wires and aluminum wires is involved. Since the electrode potential between copper and aluminum is very different, when the aluminum wires are directly connected to the copper wires, an oxidation-reduction reaction occurs when electricity is turned on, causing electrochemical corrosion of the aluminum wires. When the electrical device is running for a long time, overloaded or short-circuited, it is very easy to cause safety accidents, posing a great safety hazard to the safety of the product.

[0003] In the prior art, in the process of connecting copper wires and aluminum wires, copper-aluminum connectors are usually used to connect the copper wires and aluminum wires. When connecting, it is necessary to first install connecting joints on the ends of the copper wires and the aluminum wires respectively, and then the two connecting joints need to be installed in two shells respectively. Finally, the two shells are plugged in, and the two connecting joints will be plugged together to complete the connection between the copper wires and the aluminum wires. However, in the process of plugging the two shells, the connecting joints inside the shells are prone to loosening, and the stable connection cannot be affected, which affects the plugging effect of the connecting joints, thereby resulting in unstable connection between the connected copper wires and the aluminum wires. Summary of the invention

[0004] The object of the present invention is to provide a copper-aluminum terminal connector to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a copper-aluminum terminal connector, comprising a first shell and a second shell, the ends of the first shell and the second shell fit each other, a connecting cylinder is fixedly connected to the end of the first shell, the connecting cylinder extends into the interior of the second shell, a sealing ring is sleeved on the surface of the first connecting cylinder, a first plug connector and a second plug connector are respectively provided inside the first shell and the second shell, a copper wire and an aluminum wire are respectively connected to the two ends of the first plug connector and the second plug connector which are far away from each other, a clamping mechanism is provided between the first shell and the second shell, the clamping mechanism is used to clamp and fix the ends of the first shell and the second shell, the first A plug-in mechanism is provided on the surface of the plug connector and the second plug connector, and the plug-in mechanism is used to plug the first plug connector with the second plug connector. A conduction mechanism is provided inside the first plug connector, and the conduction mechanism is used to ensure the close contact between the first plug connector and the second plug connector after plugging to ensure the normal conduction of electricity. A limiting mechanism is provided on the surface of the first plug connector and the second plug connector, and the limiting mechanism is used to limit the first plug connector and the second plug connector when they are installed in the first shell and the second shell. Locking mechanisms are provided at both ends of the first shell and the second shell that are far away from each other, and the locking mechanism is used to lock the copper wire and the aluminum wire inside the first shell and the second shell.

[0006] As a further solution of the present invention, the snap-on mechanism includes two snap-on buckles, which are fixedly connected to the surface of one end of the first shell close to the second shell, the end of the snap-on buckle is a slope, and the surface of one end of the second shell close to the first shell is provided with a snap-on groove, and the snap-on buckle extends into the snap-on groove to dock the first shell with the second shell.

[0007] As a further solution of the present invention, the plug-in mechanism includes a plug-in slot, which is opened at the end of the first plug connector, the plug-in slot passes through the first plug connector, the copper wire is in the plug-in slot, the second plug connector is arc-shaped at one end close to the first plug connector and extends into the inside of the plug-in slot, a connecting groove is opened on the surface of the second plug connector away from the first plug connector, the aluminum wire is in the connecting groove, and fastening holes are opened on the surfaces of the first plug connector and the second plug connector, the two fastening holes extend to the positions of the plug slot and the connecting slot respectively, and the fastening holes are used to install fastening screws to fix the copper wire and the aluminum wire.

[0008] As a further solution of the present invention, the conduction mechanism includes two fixing rings, both of which are installed inside the plug-in slot, and the end of the second plug connector passes through the fixing ring. A plurality of arc-shaped contact pieces are fixedly connected between the two fixing rings, and the plurality of contact pieces are bent toward a side close to the second plug connector, and the two fixing rings and the contact pieces are both conductors.

[0009] As a further solution of the present invention, the limiting mechanism includes two limiting rings, which are respectively installed on the surfaces of the first plug connector and the second plug connector, and the surfaces of the limiting rings are provided with a plurality of openings arranged at equal angles, and the plurality of openings are fixedly connected with inclined limiting plates, and the inner wall surfaces of the first shell and the second shell are provided with limiting grooves, the limiting rings are in the limiting groove position, and the end of the limiting plate will fit inside the limiting groove.

[0010] As a further solution of the present invention, the locking mechanism includes two sealing grooves, which are respectively opened on the two end surfaces of the first shell and the second shell away from each other. An annular waterproof plug is provided in the sealing groove, and the waterproof plug extends to the outside of the sealing groove. A ring is provided on the surface of the waterproof plug, and a plurality of clamping claws are fixedly connected to the surface of the ring. The outer side of the clamping claw is an inclined surface. The surfaces of the first shell and the second shell are both threadedly connected with locking caps, and the inner surface of one end of the locking cap is an inclined surface. When the locking cap is installed on the surfaces of the first shell and the second shell, the locking cap squeezes the clamping claws to move inward.

[0011] As a further solution of the present invention, a first slide groove is provided at both ends of the first shell and the second shell that are away from each other, and the first slide groove extends to the middle position of the first plug connector and the second plug connector respectively. An L-shaped push rod is elastically slidably connected in the first slide groove, and the two push rods extend to one side of the locking cap at the end of the first shell and the second shell respectively. The end of the push rod is an inclined surface, and a second slide groove extending toward the inside of the first shell and the second shell is provided on the inner wall surface of the first slide groove. The second slide groove extends to the inside of the first shell and the second shell. A blocking rod is provided in the second slide groove, and the upper end of the blocking rod is an inclined surface. The upper end of the blocking rod is fitted with the end of the push rod, and an annular blocking groove is provided on the surface of the first plug connector and the second plug connector.

[0012] As a further solution of the present invention, a Z-shaped third slide groove is provided on the inner wall surfaces of the two second slide grooves, and the third slide grooves respectively penetrate the first shell and the second shell and extend to the ends of the first shell and the second shell, and the ends of the third slide grooves inside the second shell extend to the position of the clamping groove, and a trigger rod is elastically slidably connected in the third slide groove, and the end of the trigger rod close to the blocking rod is an inclined surface, and a triangular trigger block is fixedly connected to the surface of the blocking rod, the width of the second slide groove is twice the width of the first slide groove, and the width of the blocking rod is the same as the width of the first slide groove, and a sliding plate is elastically slidably connected up and down in the second slide groove, and the blocking rod is elastically slidably connected to the sliding plate, and the trigger rod is used to act on the trigger block to make the blocking rod slide to one side along the sliding plate.

[0013] As a further solution of the present invention, the bottom of the blocking rod is an inclined surface, and the inner side of the blocking groove is an inclined surface.

[0014] As a further solution of the present invention, a protective tube is slidably connected to the inner side of the locking cap, one end of the protective tube is located between the clamping claw and the protective tube, and the other side of the protective tube passes through the locking cap and extends to the outside of the locking cap.

[0015] Compared with the prior art, the present invention has the following beneficial effects: In the process of connecting the copper wire and the aluminum wire, the present invention uses a limiting ring and a limiting plate to limit the first plug connector and the second plug connector, which is beneficial to ensure that the first plug connector and the second plug connector can remain stable after being installed in the first shell and the second shell. The opening on the surface of the limiting ring can ensure the heat dissipation effect of the first plug connector and the second plug connector, and the clamping claws and the locking cap are used to clamp the copper wire and the aluminum wire passing through, ensuring that the copper wire and the aluminum wire can remain fixed after the installation is completed, which is convenient for the subsequent stable docking of the first plug connector and the second plug connector, and the contact sheet is used to clamp the second plug connector to ensure the stable conduction of electricity after the first plug connector and the second plug connector are connected, and avoid the first plug connector and the second plug connector directly sleeved and matched during use, which will cause the first plug connector and the second plug connector to shake, thereby causing unstable contact and affecting the power conduction effect.

[0016] The locking cap is then installed and tightened so that the locking cap acts on the pushing rod to move in the first sliding groove, and the inclined surface at the end of the pushing rod acts on the inclined surface at the upper end of the blocking rod, and the blocking rod moves toward the side close to the blocking groove, and the blocking rod moves into the blocking groove to limit the first plug connector and the second plug connector, which is beneficial for the first plug connector and the second plug connector to remain fixed after being installed in the first shell and the second shell, thereby ensuring that the first plug connector and the second plug connector can be stably docked when docking, and avoiding that when the first shell and the second shell are docked, the first plug connector and the second plug connector are subjected to a large pushing force, which will cause the first plug connector and the second plug connector to move, and the first plug connector and the second plug connector cannot be stably docked, thereby affecting the connection effect of the copper wire and the aluminum wire.

[0017] When the first shell and the second shell are connected, the first plug connector and the second plug connector are respectively located inside the first shell and the second shell. Then, during the process of connecting the first shell and the second shell, the first plug connector and the second plug connector are restricted by the blocking rod and the blocking groove, and the snap-fit ​​buckle moves into the snap-fit ​​groove. Then, when the first shell and the second shell are completely connected, the snap-fit ​​buckle moves into the snap-fit ​​groove and is first squeezed and then enters the snap-fit ​​groove and returns to its original position to engage with the snap-fit ​​groove. When the snap-fit ​​buckle returns to its original position, it acts on the trigger rod inside the second shell to move. The trigger rod inside the first shell is squeezed by the end of the second shell when the first shell and the second shell are completely connected. The trigger rod moves to trigger The inclined surface at the end of the rod will act on the trigger block and the blocking rod to move to one side, and the blocking rod moves in the second sliding groove. The blocking rod moves to one side along the sliding plate and will be misaligned with the pushing rod. The blocking rod and the sliding plate will move out of the blocking groove under the action of the spring, thereby releasing the limit blocking on the first plug connector and the second plug connector, which is conducive to moving the blocking rod out of the blocking groove after the first plug connector and the second plug connector are connected. The contact of the blocking rod during the use of the first plug connector and the second plug connector is reduced. On the one hand, the influence of heat dissipation when the blocking rod and the first plug connector and the second plug connector are used is reduced. On the other hand, the blocking rod is prevented from being deformed due to the heat generated during the use of the first plug connector and the second plug connector, which affects the subsequent use of the blocking rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall explosion structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention; Figure 3 It is a schematic diagram of the overall structure of the present invention after being cut apart; Figure 4 for Figure 3 Schematic diagram of the structure at A in the middle; Figure 5 for Figure 3 Schematic diagram of the structure at B in the middle; Figure 6 for Figure 3 Schematic diagram of the structure at C in the middle; Figure 7 It is a schematic diagram of the structure after the first shell and the second shell are separated in the present invention; Figure 8 It is a schematic diagram of the structure after the first plug connector and the second plug connector are separated in the present invention; Fig. 9 It is a schematic diagram of the structure of the first plug connector and the second plug connector after being cut apart in the present invention; Fig.10 It is a schematic diagram of the structure after the waterproof plug, the collar, the protective tube and the locking cap are separated in the present invention; Fig.11It is a schematic diagram of the structure of the second shell after being cut open in the present invention; Fig.12 This is a schematic diagram of the structure of the second slide groove inside the second shell of the present invention; Fig.13 for Fig.12 Schematic diagram of the structure at D in the middle; Fig.14 It is a schematic diagram of the structure after the trigger rod and the blocking rod are separated in the present invention; Fig.15 It is a schematic diagram of the structure of the first shell after being cut open in the present invention.

[0019] The reference numerals are as follows: 1-first shell, 2-second shell, 3-connecting cylinder, 4-sealing ring, 5-first plug connector, 6-second plug connector, 7-snapping buckle, 8-snapping groove, 9-plug groove, 10-connecting groove, 11-fastening hole, 12-fixing ring, 13-contact sheet, 14-limiting ring, 15-through port, 16-limiting plate, 17-limiting groove, 18-sealing groove, 19-waterproof plug, 20-ring, 21-clamping claw, 22-locking cap, 23-first slide groove, 24-push rod, 25-second slide groove, 26-blocking rod, 27-blocking groove, 28-third slide groove, 29-trigger rod, 30-trigger block, 31-sliding plate, 32-protective cylinder. DETAILED DESCRIPTION

[0020] See also Figure 1-Figure 15 The present invention provides a technical solution: a copper-aluminum terminal connector, comprising a first shell 1 and a second shell 2, the ends of the first shell 1 and the second shell 2 are fitted with each other, a connecting cylinder 3 is fixedly connected to the end of the first shell 1, the connecting cylinder 3 extends into the inside of the second shell 2, a sealing ring 4 is sleeved on the surface of the first connecting cylinder 3, a first plug connector 5 and a second plug connector 6 are respectively arranged inside the first shell 1 and the second shell 2, the two ends of the first plug connector 5 and the second plug connector 6 are respectively connected with a copper wire and an aluminum wire, a clamping mechanism is arranged between the first shell 1 and the second shell 2, the clamping mechanism is used to clamp and fix the ends of the first shell 1 and the second shell 2, the first plug connector 5 A plugging mechanism is provided on the surface of the first plug connector 5 and the second plug connector 6, and the plugging mechanism is used to plug the first plug connector 5 and the second plug connector 6. A conducting mechanism is provided inside the first plug connector 5, and the conducting mechanism is used to ensure the close contact between the first plug connector 5 and the second plug connector 6 after plugging to ensure the normal conduction of electricity. A limiting mechanism is provided on the surface of the first plug connector 5 and the second plug connector 6, and the limiting mechanism is used to limit the first plug connector 5 and the second plug connector 6 when they are installed in the first shell 1 and the second shell 2. A locking mechanism is provided at both ends of the first shell 1 and the second shell 2 that are away from each other, and the locking mechanism is used to lock the copper wire and the aluminum wire inside the first shell 1 and the second shell 2; The snap-fit ​​mechanism includes two snap-fit ​​buckles 7, which are fixedly connected to the surface of one end of the first shell 1 close to the second shell 2, and the ends of the snap-fit ​​buckles 7 are inclined surfaces. The surface of one end of the second shell 2 close to the first shell 1 is provided with a snap-fit ​​groove 8, and the snap-fit ​​buckles 7 extend into the snap-fit ​​groove 8 to make the first shell 1 and the second shell 2 dock. The plug-in mechanism includes a plug-in slot 9, which is provided at the end of the first plug connector 5, and the plug-in slot 9 passes through the first plug connector 5, and the copper wire is in the plug-in slot 9. The end of the second plug connector 6 close to the first plug connector 5 is arc-shaped and extends to the inside of the plug-in slot 9. The surface of the second plug connector 6 away from the first plug connector 5 is provided with a connecting slot 10, and the aluminum wire is in the connecting slot 10. The surfaces of the first plug connector 5 and the second plug connector 6 are provided with fastening holes 11, and the two fastening holes 11 extend to the positions of the plug-in slot 9 and the connecting slot 10 respectively. The fastening holes 11 are used to install fastening screws to fix the copper wire and the aluminum wire; The conducting mechanism includes two fixing rings 12, both of which are installed inside the plug slot 9, and the end of the second plug connector 6 passes through the fixing ring 12. A plurality of arc-shaped contact pieces 13 are fixedly connected between the two fixing rings 12, and the plurality of contact pieces 13 are bent toward the side close to the second plug connector 6. Both the two fixing rings 12 and the contact pieces 13 are conductors. The limiting mechanism includes two limiting rings 14, which are respectively installed on the surface of the first plug connector 5 and the second plug connector 6. The surface of the limiting ring 14 is provided with a plurality of through openings 15 arranged at equal angles, and the plurality of through openings 15 are fixedly connected with inclined limiting plates 16. The inner wall surfaces of the first shell 1 and the second shell 2 are provided with limiting grooves 17. The limiting ring 14 is located at the position of the limiting groove 17, and the end of the limiting plate 16 is fitted inside the limiting groove 17. The locking mechanism includes two sealing grooves 18, which are respectively opened on the two end surfaces of the first shell 1 and the second shell 2 away from each other. An annular waterproof plug 19 is arranged in the sealing groove 18, and the waterproof plug 19 extends to the outside of the sealing groove 18. A collar 20 is sleeved on the surface of the waterproof plug 19, and a plurality of clamping claws 21 are fixedly connected to the surface of the collar 20. The outside of the clamping claws 21 is an inclined surface. The surfaces of the first shell 1 and the second shell 2 are both threadedly connected with a locking cap 22, and the inner surface of one end of the locking cap 22 is an inclined surface. When the locking cap 22 is installed on the surfaces of the first shell 1 and the second shell 2, the locking cap 22 squeezes the clamping claws 21 to move inward; In the process of connecting the copper wire and the aluminum wire, it is necessary to first put the locking cap 22, the ring 20 and the waterproof plug 19 on the surface of the copper wire and the aluminum wire in sequence, and then move the copper wire and the aluminum wire to the inside of the plug groove 9 and the connection groove 10 respectively, and then install the fastening screws in the fastening holes 11 to fix the copper wire and the aluminum wire, and then install the first plug connector 5 and the second plug connector 6 to the inside of the first shell 1 and the second shell 2 respectively. The end of the first plug connector 5 will move to the inside of the connecting tube 3, and the limiting ring 14 will move with the first plug connector 5 and the second plug connector 6 to the inside of the first shell 1 and the second shell 2. It is necessary to move the limiting ring 14 and the limiting plate 16 into the limiting groove 17, and the end of the limiting plate 16 will abut against the inner wall surface of the limiting groove 17 to fix the first plug connector 5. The first and second plug connectors 5 and 6 are limited in position with the second plug connector 6, which is conducive to keeping the first and second plug connectors 5 and 6 stable after being installed in the first shell 1 and the second shell 2. The through opening 15 on the surface of the limiting ring 14 can ensure the heat dissipation effect of the first and second plug connectors 5 and 6, and a plurality of inclined limiting plates 16 can support the first and second plug connectors 5 and 6, so that the first and second plug connectors 5 and 6 can be in the middle position of the first shell 1 and the second shell 2, avoiding the first and second plug connectors 5 and 6 having a small gap with the first and second shells 1 and 2, which affects the heat dissipation. Then, the waterproof plug 19 is moved into the sealing groove 18, the ring 20 is moved to the surface of the waterproof plug 19, and then the locking cap 2 is 2 is screwed together with the first shell 1 and the second shell 2 by threaded connection, the inclined surface on the inner side of the locking cap 22 will squeeze the inclined surface on the outer side of the clamping claw 21, and the clamping claw 21 will bend inward under the squeezing of the locking cap 22, and the clamping claw 21 will clamp the copper wire and the aluminum wire passing through, so as to ensure that the copper wire and the aluminum wire can be kept fixed after the installation is completed, so as to facilitate the stable docking of the first plug connector 5 and the second plug connector 6 in the subsequent process, and then after the locking cap 22 is tightened, the connecting tube 3 is moved into the second shell 2, and the end of the connecting tube 3 is moved to the position of the second plug connector 6, and then the end of the second plug connector 6 is moved into the plug groove 9 at the end of the first plug connector 5 inside the connecting tube 3, and the end of the second plug connector 6 is moved to the position of the fixing ring 12 and the contact piece 13. , the second plug connector 6 will squeeze the contact piece 13, and the contact piece 13 will clamp the second plug connector 6 to ensure the stable conduction of electricity after the first plug connector 5 and the second plug connector 6 are connected, and avoid the first plug connector 5 and the second plug connector 6 from being directly sleeved and matched during use. The first plug connector 5 and the second plug connector 6 will shake, resulting in unstable contact and affecting the power conduction effect. When the connecting cylinder 3 is completely moved into the second shell 2, the sealing ring 4 will move into the second shell 2 to seal between the connecting cylinder 3 and the second shell 2, and the snap-on buckle 7 will move into the snap-on groove 8. The snap-on buckle 7 will first be squeezed inward by the snap-on groove 8, and then when the snap-on buckle 7 is completely moved into the snap-on groove 8, it will move outward and snap into the snap-on groove 8.The cooperation between the snap-fit ​​buckle 7 and the snap-fit ​​groove 8 will make the first shell 1 and the second shell 2 snap-fit ​​and fixed, so that the first shell 1 and the second shell 2 can be stably docked.

[0021] In the process of connecting the copper wire and the aluminum wire, when the first shell 1 and the second shell 2 are clamped, the second plug connector 6 will move to the inside of the first plug connector 5. The first plug connector 5 and the second plug connector 6 will be pushed away from each other when docking. The limit plate 16 is easily bent under the action of the pushing force, affecting the normal docking of the first plug connector 5 and the second plug connector 6. As a further solution of the present invention, the first slide groove 23 is provided at both ends of the first shell 1 and the second shell 2 that are away from each other. The first slide groove 23 extends to the middle position of the first plug connector 5 and the second plug connector 6 respectively. An L-shaped push rod 24 is elastically slidably connected, and the two push rods 24 extend to one side of the locking cap 22 at the ends of the first shell 1 and the second shell 2 respectively. The ends of the push rods 24 are inclined, and the inner wall surface of the first slide groove 23 is provided with a second slide groove 25 extending to the inside of the first shell 1 and the second shell 2. The second slide groove 25 extends to the inside of the first shell 1 and the second shell 2. A blocking rod 26 is provided in the second slide groove 25, and the upper end of the blocking rod 26 is an inclined surface. The upper end of the blocking rod 26 is fitted with the end of the push rod 24, and the surfaces of the first plug connector 5 and the second plug connector 6 are both provided with an annular blocking groove 27; In the process of connecting the copper wire and the aluminum wire, when the first plug connector 5 and the second plug connector 6 are installed into the first shell 1 and the second shell 2, the blocking groove 27 will move to the blocking rod 26 position, and then after the first plug connector 5 and the second plug connector 6 are installed, the waterproof plug 19, the collar 20 and the locking cap 22 need to be installed. When the locking cap 22 is installed and tightened, the locking cap 22 will act on the push rod 24 to move in the first slide groove 23, and the inclined surface at the end of the push rod 24 will act on the inclined surface at the upper end of the blocking rod 26, and the blocking rod 26 will move to the side close to the blocking groove 27, and the blocking rod 2 6 will move into the blocking groove 27 to limit the first plug connector 5 and the second plug connector 6, which is beneficial for the first plug connector 5 and the second plug connector 6 to remain fixed after being installed in the first shell 1 and the second shell 2, thereby ensuring that the first plug connector 5 and the second plug connector 6 can be stably docked when docking, and avoiding that when the first shell 1 and the second shell 2 are docked, the first plug connector 5 and the second plug connector 6 are subjected to a large pushing force, which will cause the first plug connector 5 and the second plug connector 6 to move, and the first plug connector 5 and the second plug connector 6 cannot be stably docked, thereby affecting the connection effect of the copper wire and the aluminum wire.

[0022] During the use of the first plug connector 5 and the second plug connector 6 after docking, the first plug connector 5 and the second plug connector 6 will generate heat when conducting electricity. The blocking rod 26 will be in contact with the first plug connector 5 and the second plug connector 6 for a long time, which will affect the heat dissipation, and the temperature increase will cause the blocking rod 26 to deform. As a further solution of the present invention, the inner wall surfaces of the two second slide grooves 25 are each provided with a Z-shaped third slide groove 28, and the third slide groove 28 respectively penetrates the first shell 1 and the second shell 2 and extends to the ends of the first shell 1 and the second shell 2. The third slide groove 28 inside the second shell 2 8 ends extend to the position of the clamping groove 8, a trigger rod 29 is elastically slidably connected in the third slide groove 28, the end of the trigger rod 29 close to the blocking rod 26 is an inclined surface, a triangular trigger block 30 is fixedly connected to the surface of the blocking rod 26, the width of the second slide groove 25 is twice the width of the first slide groove 23, the width of the blocking rod 26 is the same as the width of the first slide groove 23, a sliding plate 31 is elastically slidably connected up and down in the second slide groove 25, the blocking rod 26 is elastically slidably connected to the sliding plate 31, and the trigger rod 29 is used to act on the trigger block 30 to make the blocking rod 26 slide to one side along the sliding plate 31; When the first shell 1 and the second shell 2 are docked, the first plug connector 5 and the second plug connector 6 are respectively located inside the first shell 1 and the second shell 2. Then, during the process of docking the first shell 1 and the second shell 2, the first plug connector 5 and the second plug connector 6 will be restricted by the blocking rod 26 and the blocking groove 27, and the snap-in buckle 7 will move into the snap-in groove 8. Then, when the first shell 1 and the second shell 2 are fully docked, the snap-in buckle 7 moves into the snap-in groove 8 and will be squeezed first and then enter the snap-in groove 8 and then return to its original position and engage with the snap-in groove 8. When the snap-in buckle 7 returns to its original position, it will act on the trigger rod 29 inside the second shell 2 to move. The trigger rod 29 inside the first shell 1 will be squeezed by the end of the second shell 2 when the first shell 1 and the second shell 2 are fully docked. The trigger rod 29 moves the inclined end of the trigger rod 29. The surface will act on the trigger block 30 and the blocking rod 26 to move to one side, and the blocking rod 26 moves in the second sliding groove 25. The blocking rod 26 moves to one side along the sliding plate 31 and will be misaligned with the pushing rod 24. The blocking rod 26 and the sliding plate 31 will move out of the blocking groove 27 under the action of the spring, and the limit blocking of the first plug connector 5 and the second plug connector 6 is released, which is conducive to moving the blocking rod 26 out of the blocking groove 27 after the first plug connector 5 and the second plug connector 6 are connected. The contact of the blocking rod 26 during the use of the first plug connector 5 and the second plug connector 6 is reduced. On the one hand, the influence of heat dissipation when the blocking rod 26 is used with the first plug connector 5 and the second plug connector 6 is reduced. On the other hand, it is avoided that the blocking rod 26 will be deformed due to the heat generated during the use of the first plug connector 5 and the second plug connector 6, which affects the subsequent use of the blocking rod 26.

[0023] During the installation of the first plug connector 5 and the second plug connector 6, it is difficult for the blocking rod 26 to accurately move into the blocking groove 27. As a further solution of the present invention, the bottom of the blocking rod 26 is an inclined surface, and the inner side of the blocking groove 27 is an inclined surface; During the installation of the first plug connector 5 and the second plug connector 6, the blocking rod 26 will move toward the side close to the blocking groove 27. The inclined surface at the bottom of the blocking rod 26 and the inclined surface inside the blocking groove 27 can prevent the blocking groove 27 from accurately moving to the position of the blocking rod 26. During the downward movement of the blocking rod 26, the first plug connector 5 or the second plug connector 6 can move under the action of the inclined surface at the bottom of the blocking rod 26 to increase the matching range of the blocking rod 26 and the blocking groove 27.

[0024] In the process of docking the copper wire and the aluminum wire, the clamping claw 21 will clamp the copper wire and the aluminum wire. The clamped copper wire and the aluminum wire are prone to metal fatigue at the clamping position when shaking, and breakage occurs. As a further solution of the present invention, a protective tube 32 is slidably connected to the inner side of the locking cap 22. One end of the protective tube 32 is between the clamping claw 21 and the protective tube 32. The other side of the protective tube 32 passes through the locking cap 22 and extends to the outside of the locking cap 22. During the process of docking the copper wire and the aluminum wire, when the two locking caps 22 are installed on the surfaces of the first shell 1 and the second shell 2, the locking caps 22 will squeeze the clamping claws 21, and the protective tube 32 will extend the locking caps 22 under the action of the clamping claws 21 to support and protect the copper wire and the aluminum wire, so as to prevent the copper wire and the aluminum wire from shaking during subsequent use, causing metal fatigue and breakage at the position of the clamping claws 21, thereby reducing the service life of the copper wire and the aluminum wire.

Claims

1. A copper-aluminum terminal connector, comprising a first housing (1) and a second housing (2), characterized in that: The ends of the first shell (1) and the second shell (2) are fitted to each other. A connecting tube (3) is fixedly connected to the end of the first shell (1). The connecting tube (3) extends into the interior of the second shell (2). A sealing ring (4) is sleeved on the surface of the first connecting tube (3). A first plug connector (5) and a second plug connector (6) are respectively provided inside the first shell (1) and the second shell (2). Copper wires and aluminum wires are respectively connected to the two ends of the first plug connector (5) and the second plug connector (6) which are separated from each other. A clamping mechanism is provided between the first shell (1) and the second shell (2). The clamping mechanism is used to clamp and fix the ends of the first shell (1) and the second shell (2). The surfaces of the first plug connector (5) and the second plug connector (6) are provided with A plug-in mechanism, the plug-in mechanism is used to plug a first plug connector (5) and a second plug connector (6), a conduction mechanism is provided inside the first plug connector (5), the conduction mechanism is used to ensure close contact between the first plug connector (5) and the second plug connector (6) after plugging, and to ensure normal conduction of electricity, limiting mechanisms are provided on the surfaces of the first plug connector (5) and the second plug connector (6), the limiting mechanisms are used to limit the first plug connector (5) and the second plug connector (6) when they are installed in the first shell (1) and the second shell (2), and locking mechanisms are provided at both ends of the first shell (1) and the second shell (2) that are away from each other, the locking mechanisms are used to lock the copper wire and the aluminum wire inside the first shell (1) and the second shell (2).

2. A copper-aluminum terminal connector according to claim 1, characterized in that: The snap-fit ​​mechanism comprises two snap-fit ​​buckles (7), the two snap-fit ​​buckles (7) being fixedly connected to the surface of one end of the first shell (1) close to the second shell (2), the end of the snap-fit ​​buckle (7) being an inclined surface, and a snap-fit ​​groove (8) being provided on the surface of one end of the second shell (2) close to the first shell (1), the snap-fit ​​buckle (7) extending into the snap-fit ​​groove (8) so that the first shell (1) and the second shell (2) are butted against each other.

3. A copper-aluminum terminal connector according to claim 2, characterized in that: The plug-in mechanism comprises a plug-in slot (9), the plug-in slot (9) being provided at the end of the first plug connector (5), the plug-in slot (9) penetrating the first plug connector (5), the copper wire being located in the plug-in slot (9), the end of the second plug connector (6) close to the first plug connector (5) being arc-shaped and extending into the plug-in slot (9), the surface of the end of the second plug connector (6) away from the first plug connector (5) being provided with a connecting slot (10), the aluminum wire being located in the connecting slot (10), the surfaces of the first plug connector (5) and the second plug connector (6) being provided with fastening holes (11), the two fastening holes (11) respectively extending to the positions of the plug-in slot (9) and the connecting slot (10), the fastening holes (11) being used for installing fastening screws to fix the copper wire and the aluminum wire.

4. A copper-aluminum terminal connector according to claim 3, characterized in that: The conduction mechanism comprises two fixing rings (12), the two fixing rings (12) are both mounted inside the plug slot (9), the end of the second plug connector (6) passes through the fixing ring (12), a plurality of arc-shaped contact pieces (13) are fixedly connected between the two fixing rings (12), the plurality of contact pieces (13) are all bent towards a side close to the second plug connector (6), and the two fixing rings (12) and the contact pieces (13) are both conductors.

5. The copper-aluminum terminal connector according to claim 1, characterized in that: The limiting mechanism comprises two limiting rings (14), the two limiting rings (14) being respectively mounted on the surface of the first plug connector (5) and the second plug connector (6), the surface of the limiting ring (14) being provided with a plurality of openings (15) arranged at equal angles, the plurality of openings (15) being fixedly connected with an inclined limiting plate (16), the inner wall surfaces of the first shell (1) and the second shell (2) being provided with limiting grooves (17), the limiting ring (14) being located at the position of the limiting groove (17), and the end of the limiting plate (16) being fitted inside the limiting groove (17).

6. The copper-aluminum terminal connector according to claim 2, characterized in that: The locking mechanism comprises two sealing grooves (18), the two sealing grooves (18) are respectively formed on two end surfaces of the first shell (1) and the second shell (2) which are far from each other, an annular waterproof plug (19) is arranged in the sealing groove (18), the waterproof plug (19) extends to the outside of the sealing groove (18), a collar (20) is sleeved on the surface of the waterproof plug (19), a plurality of clamping claws (21) are fixedly connected to the surface of the collar (20), the outer side of the clamping claws (21) is an inclined surface, the surfaces of the first shell (1) and the second shell (2) are both threadedly connected with a locking cap (22), the inner side surface of one end of the locking cap (22) is an inclined surface, and when the locking cap (22) is mounted on the surfaces of the first shell (1) and the second shell (2), the locking cap (22) presses the clamping claws (21) to move inward.

7. The copper-aluminum terminal connector according to claim 6, characterized in that: The first housing (1) and the second housing (2) are provided with first slide grooves (23) at two ends away from each other. The first slide grooves (23) extend to the middle position of the first plug connector (5) and the second plug connector (6). An L-shaped push rod (24) is elastically slidably connected in the first slide grooves (23). The two push rods (24) extend to one side of the locking cap (22) at the ends of the first housing (1) and the second housing (2). The ends of the push rods (24) are inclined. A second slide groove (25) extending toward the inside of the first shell (1) and the second shell (2) is formed on the inner wall surface of a slide groove (23); the second slide groove (25) extends to the inside of the first shell (1) and the second shell (2); a blocking rod (26) is provided in the second slide groove (25); the upper end of the blocking rod (26) is an inclined surface; the upper end of the blocking rod (26) is in contact with the end of the push rod (24); and an annular blocking groove (27) is formed on the surface of the first plug connector (5) and the second plug connector (6).

8. The copper-aluminum terminal connector according to claim 7, characterized in that: The inner wall surfaces of the two second slide grooves (25) are each provided with a Z-shaped third slide groove (28), the third slide groove (28) respectively penetrates the first shell (1) and the second shell (2) and extends to the ends of the first shell (1) and the second shell (2), the end of the third slide groove (28) located inside the second shell (2) extends to the position of the clamping groove (8), a trigger rod (29) is elastically slidably connected in the third slide groove (28), and the end of the trigger rod (29) close to the blocking rod (26) is an inclined surface. A triangular trigger block (30) is fixedly connected to the surface of the blocking rod (26); the width of the second slide groove (25) is twice the width of the first slide groove (23); the width of the blocking rod (26) is the same as the width of the first slide groove (23); a sliding plate (31) is elastically slidably connected up and down in the second slide groove (25); the blocking rod (26) and the sliding plate (31) are elastically slidably connected; and the trigger rod (29) is used to act on the trigger block (30) to make the blocking rod (26) slide to one side along the sliding plate (31).

9. The copper-aluminum terminal connector according to claim 7, characterized in that: The bottom of the blocking rod (26) is an inclined surface, and the inner side of the blocking groove (27) is an inclined surface.

10. The copper-aluminum terminal connector according to claim 6, characterized in that: A protective tube (32) is slidably connected to the inner side of the locking cap (22); one end of the protective tube (32) is located between the clamping claw (21) and the protective tube (32); the other side of the protective tube (32) passes through the locking cap (22) and extends to the outer side of the locking cap (22).

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