Safety connection device for power wiring harness

Abstract

The invention relates to the technical field of wire harness connection, in particular to a safe connection device for a power wire harness. A wire plugging end, a plugging end, a wire plugging end body, a cavity, a wire plugging hole, a rectangular block, a strip-shaped groove, a hinge plate, a semicircular ring, a copper guide sheet and a through hole are arranged; the hinge plate is completely attached to the outer wall of the wire plugging end body, and the pressing block completely extrudes and limits the copper guide sheet and the wire. After the hinge plates are attached to the outer side of the plug wire end body, the semi-circular rings on the two hinge plates are attached to each other, so that the semi-circular rings on the two hinge plates wrap an external wire, and then the two semi-circular rings are locked by using a locking ring in the prior art; and then the plugging end on the wire plugging end body is plugged with the plugging port on the automobile or the mechanical equipment, so that the pressing block and the copper conducting sheet extrude and limit the wire in the working process of the automobile or the mechanical equipment, and the problem that the wire and the copper conducting sheet are loosened in the vibration process of the automobile or the mechanical equipment is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of wire harness connection, in particular to a power wire harness safety connection device. Background Art

[0002] Power harness connectors are key components used to achieve electrical connection and mechanical fixation between power harnesses (such as cables and wires) and electrical equipment, components or other harnesses. Their core function is to ensure stable power transmission, reliable mechanical connection, and provide necessary insulation, protection and safety guarantees; they are widely used in power systems, new energy vehicles, industrial equipment, building power distribution and other fields, and are basic components in power transmission networks.

[0003] The components of existing electrical connectors include: a housing, a bayonet, a locking bolt, a terminal and a plug-in end; specifically, the staff inserts the wire into the housing, then uses a tool to tighten the locking bolt so that the locking bolt squeezes and fixes the wire, fixing the wire to the terminal, then inserts the terminal on the housing into the connection, and uses the bayonet to clamp and fix the housing and the connection.

[0004] However, when existing connectors are used in automobiles and industrial equipment, the mechanical connection between the connector terminals and the wires gradually loosens due to the continuous vibration caused by the driving of the car or the operation of the industrial equipment (for example, the vibration acceleration of the engine compartment can reach 5-10g), making it easy for the wires to fall off from the terminal, resulting in malfunctions of the car or industrial equipment.

[0005] In summary, in order to solve the technical problem raised in this article, the present invention proposes a power wire harness safety connection device. Summary of the Invention

[0006] The present invention provides a power wiring harness safety connection device, which includes a wire plug end and a plug end, wherein the plug end is arranged at one end of the wire plug end; the wire plug end includes: The plug-in terminal body has a cavity inside and a plurality of plug-in holes on the side away from the plug-in terminal; a rectangular block is provided on the inner wall of the end of the cavity away from the plug-in holes, and a strip groove is provided on the end of the rectangular block away from the plug-in holes; There are two hinged plates, each hinged to the end of the wire insertion terminal body away from the wire insertion hole, and a semicircular ring is provided on the end of the hinged plate close to the wire insertion hole. The two hinged plates are symmetrically distributed on the wire insertion terminal body; The copper guide piece has an S-shaped structure and is arranged inside the cavity. The end of the copper guide piece close to the wire insertion hole is fixed to the inner wall of the cavity, and the arc-shaped opening of the end of the copper guide piece close to the wire insertion hole is downward; the end of the copper guide piece away from the wire insertion hole is located inside the strip groove, and the end of the copper guide piece away from the wire insertion hole is provided with multiple through holes; The guide block is arranged at one end of the cavity away from the wire insertion hole, and the end of the guide block close to the copper guide piece is arc-shaped, and the arc surface of the copper guide piece away from the wire insertion hole is in contact with the arc surface of the guide block; a guide groove is provided on one side of the guide block; the guide groove corresponds to the through hole on the copper guide piece; The extrusion block is slidably connected in the wire plug body, the upper end of the extrusion block is located outside the wire plug body, the lower end is located inside the wire plug body, and the extrusion block is located just above the arc-shaped protrusion of the copper guide.

[0007] As a preferred solution in this application, a protrusion is provided on the inner side of the hinged plate, and a rectangular groove is provided on the upper end of the wire insertion end body. The rectangular groove is connected to the strip groove inside the rectangular block, and a clamping block is slidably connected inside the rectangular groove.

[0008] As a preferred solution in this application, the lower end of the extrusion block is hinged with two fixed plates, and the lower end of the fixed plate contacts the upper arc-shaped raised surface of the copper guide plate near one end of the wire insertion hole; a through groove is opened on the lower side of the fixed plate, and the through groove corresponds to the through hole.

[0009] As a preferred solution in the present application, an arc-shaped plate is provided on the lower side of each fixed plate. In the initial state, an "eight" structure is formed between the two arc-shaped plates, and strip patterns are provided on the arc-shaped surface of the arc-shaped plate.

[0010] As a preferred solution in the present application, the arc-shaped plate and the fixed plate are hinged.

[0011] As a preferred solution in the present application, a strip block is provided on the fixing plate, and the strip block is located at the upper opening of the through slot.

[0012] As a preferred solution in the present application, an elastic plate is provided between the two strip blocks, and in an initial state, the elastic plate is bent upward.

[0013] As a preferred solution in the present application, the elastic plate is a metal nanoplate composite material, and the outer side of the elastic plate is wrapped with polyurethane, specifically, the elastic plate is embedded in the polyurethane.

[0014] The beneficial effects of the present invention are as follows: The hinged plate is completely fitted with the outer wall of the wire plug terminal body, and the clamping block completely squeezes and limits the copper guide plate and the wire; and when the hinged plate is fitted with the outer side of the wire plug terminal body, the semicircular rings on the two hinged plates are fitted, so that the semicircular rings on the two hinged plates wrap the external wire, and then the two semicircular rings are locked using the locking ring in the prior art; then the plug-in end on the wire plug terminal body is plugged into the plug interface on the car or mechanical equipment, so that during the operation of the car or mechanical equipment, the clamping block and the copper guide plate squeeze and limit the wire, thereby avoiding the problem of loosening of the wire and the copper guide plate during the vibration of the car or mechanical equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a perspective view of the connecting device of the present invention; Figure 2 is a three-dimensional diagram of the connecting device of the present invention from another perspective; Figure 3 This is a view of the internal structure of the cavity in the present invention; Figure 4 This is a structural view of the copper guide plate and the extrusion block in the present invention; Figure 5 It is a structural view of the fixing plate in the present invention.

[0016] In the figure: the plug end 1, the plug end 2, the plug end body 3, the cavity 31, the plug hole 32, the rectangular block 33, the strip groove 331, the hinged plate 34, the semicircular ring 341, the copper guide 35, the through hole 351, the guide block 36, the guide groove 361, the extrusion block 37, the protrusion 342, the rectangular groove 343, the pressing block 344, the fixing plate 371, the through groove 372, the arc plate 373, the strip block 374, and the elastic plate 375. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] Example 1:

[0019] like Figures 1 to 5 As shown; a power harness safety connection device, the connection device includes a plug-in terminal 1 and a plug-in terminal 2, the plug-in terminal 2 is arranged at one end of the plug-in terminal 1; the plug-in terminal 1 includes: The plug-in terminal body 3 has a cavity 31 formed therein, and a plurality of plug-in holes 32 are formed on a side away from the plug-in terminal 2; a rectangular block 33 is provided on the inner wall of one end of the cavity 31 away from the plug-in holes 32, and a strip groove 331 is formed on the end of the rectangular block 33 away from the plug-in holes 32; There are two hinged plates 34, each hinged plate 34 is hinged to the end of the wire insertion terminal body 3 away from the wire insertion hole 32, and a semicircular ring 341 is provided on the end of the hinged plate 34 close to the wire insertion hole 32. The two hinged plates 34 are symmetrically distributed on the wire insertion terminal body 3; The copper guide piece 35 has an S-shaped structure and is disposed inside the cavity 31. The end of the copper guide piece 35 near the wire insertion hole 32 is fixed to the inner wall of the cavity 31, and the arc-shaped opening of the end of the copper guide piece 35 near the wire insertion hole 32 faces downward. The end of the copper guide piece 35 away from the wire insertion hole 32 is located inside the strip groove 331, and the end of the copper guide piece 35 away from the wire insertion hole 32 has multiple through holes 351. The guide block 36 is disposed within the cavity 31 at an end away from the wire insertion hole 32. The end of the guide block 36 near the copper guide piece 35 is arc-shaped, and the arcuate surface of the copper guide piece 35 away from the wire insertion hole 32 mates with the arcuate surface of the guide block 36. A guide groove 361 is defined on one side of the guide block 36. The guide groove 361 corresponds to the through hole 351 on the copper guide piece 35. The extrusion block 37 is slidably connected to the plug terminal body 3, the upper end of the extrusion block 37 is located outside the plug terminal body 3, the lower end is located inside the plug terminal body 3, and the extrusion block 37 is located directly above the arc-shaped protrusion of the copper guide piece 35; A protrusion 342 is provided on the inner side of the hinge plate 34 , and a rectangular groove 343 is provided on the upper end of the wire end body 3 . The rectangular groove 343 is connected to the strip groove 331 inside the rectangular block 33 , and a pressing block 344 is slidably connected inside the rectangular groove 343 .

[0020] Here’s how it works: During use, after the worker peels off the outer insulation layer of the wire, if the wires inside the wire are scattered, the worker will twist the scattered wires into a single wire and then straighten the wires. If the outer insulation layer of the wire is peeled off and the wires inside are single strands, there is no need to twist them and the wires can be straightened. The straightened wire is inserted into the wire insertion hole 32, and the wire is inserted into the cavity 31 inside the wire insertion terminal body 3. After the guide wire is inserted into the cavity 31, the wire is continuously pushed to pass the wire through the through hole 351 at the end of the copper guide piece 35 away from the wire insertion hole 32. After the copper wire passes through one end of the wire insertion hole 32, the length of the copper wire passing through the through hole 351 is at least one-third of the exposed part of the wire. After the wire is inserted, the wire is inserted into the guide groove 361 on the guide block 36. The staff manually rotates the hinge plate 34. In the initial state, the inner side of the hinge plate 34 is separated from the outer side of the wire insertion terminal body 3. When the wire is installed, the hinge plate 34 is rotated so that the hinge The inner side of the connecting plate 34 gradually approaches the outer side of the plug terminal body 3, and the angle between the two gradually becomes smaller. During this process, the inner side of the hinged plate 34 contacts the extrusion block 37 slidably connected to the plug terminal body 3. As the hinged plate 34 continues to rotate, the hinged plate 34 pushes the extrusion block 37, so that the extrusion block 37 is located in a part of the cavity 31 inside the plug terminal body 3 to squeeze the copper guide 35 below it. The copper guide 35 is an S-shaped structure, and the end of the copper guide 35 close to the plug hole 32 is connected to the inner wall of the cavity 31, and the arc-shaped notch of the copper guide 35 at one end of the plug hole 32 faces downward, so that after the wire is inserted into the cavity 31, the wire wire is located above the end of the copper guide 35 close to the plug hole 32 and contacts; The cam 35 is located on the upper edge of the guide rail 35 and is positioned to engage the guide rail 36 so that the guide rail 36 can be positioned in a direction of rotation relative to the guide rail 36. When the guide piece 35 moves into the strip groove 331, the inner side of the through hole 351 on the copper guide piece 35 pushes the wire, but the end of the wire located in the guide groove 361 is blocked by the inner wall of the guide groove 361, so that during the movement of the copper guide piece 35, the wire at the intersection of the through hole 351 on the copper guide piece 35 and the guide groove 361 is bent. As the copper guide piece 35 continues to move, the wire is in a bent state, and the bent part of the wire is buckled on the inner wall of the through hole 351, so that during the movement of the copper guide piece 35 into the strip groove 331, the copper guide piece 35 drives the wire to move, so that the wire is located in the gap between the copper guide piece 35 and the guide block 36, and the wire is squeezed by the guide block 36 and the copper guide piece 35. As the copper guide piece 35 moves, the through hole 351 of the copper guide piece 35 enters the strip groove 331, so that the through hole 351 on the copper guide piece 35 drives the wire to enter the strip groove 331; When the hinge plate 34 is rotated, the protrusion 342 on the inner side of the hinge plate 34 enters the rectangular groove 343 on the plug terminal body 3, and as the hinge plate 34 approaches the plug terminal body 3, the protrusion 342 on the inner side of the hinge plate 34 pushes the clamping block 344 inside the rectangular groove 343. After the clamping block 344 is pushed by the protrusion 342, the clamping block 344 passes through the rectangular groove 343 and enters the strip groove 331, so that the clamping block 344 squeezes the copper guide piece 35 entering the strip groove 331 and the wire on the through hole 351, thereby limiting the wire and the copper guide piece 35 until the hinge plate 34 is completely in contact with the outer wall of the plug terminal body 3, and the clamping block 344 is pressed 344 completely squeezes and limits the copper guide piece 35 and the wire; and when the hinge plate 34 is fitted with the outer side of the wire plug end body 3, the semicircular rings 341 on the two hinge plates 34 are fitted, so that the semicircular rings 341 on the two hinge plates 34 wrap the external wire, and then the two semicircular rings 341 are locked using the locking ring in the prior art; then the plug-in terminal 2 on the wire plug end body 3 is plugged into the plug interface on the car or mechanical equipment, so that during the operation of the car or mechanical equipment, the clamping block 344 and the copper guide piece 35 squeeze and limit the wire, thereby avoiding the problem of loosening of the wire and the copper guide piece 35 during the vibration of the car or mechanical equipment.

[0021] Example 2:

[0022] like Figures 2 to 5 As shown; the lower end of the extrusion block 37 is hinged to two fixing plates 371, and the lower end of the fixing plate 371 contacts the upper arc-shaped raised surface of the copper guide 35 near the wire insertion hole 32; the lower side of the fixing plate 371 is provided with a through groove 372, which corresponds to the through hole 351; An arc-shaped plate 373 is provided on the lower side of each fixed plate 371. In the initial state, an "eight" structure is formed between the two arc-shaped plates 373, and stripe patterns are provided on the arc-shaped surface of the arc-shaped plates 373. The arc plate 373 and the fixed plate 371 are hinged.

[0023] Here’s how it works: Two fixing plates 371 are hingedly connected to the lower end of the extrusion block 37, and the lower ends of the fixing plates 371 are in contact with the surface of the arc-shaped protrusion of the copper guide piece 35. A through slot 372 is provided on the lower side of the fixing plate 371, and the through slot 372 corresponds to the through hole 351. If the interior of the plug terminal body 3 is to be repaired, after the repair, when the wire is reinserted into the cavity 31, the wire passes through the through slot 372 and enters the through hole 351 of the copper guide piece 35, and then enters the interior of the guide slot 361 through the through hole 351. After that, the staff rotates the hinged plate 34. Based on the above-mentioned embodiment 1, during the rotation of the hinged plate 34, the hinged plate 34 pushes the extrusion block 37, and the extrusion block 37 moves toward the inside of the cavity 31. During this process, the two fixed plates 371 at the lower end of the extrusion block 37 are squeezed, and the fixed plate 371 rotates. Since the lower end of each fixed plate 371 is provided with an arc plate 373, an "eight" structure is formed between the two arc plates 373. When the extrusion block 37 moves downward, the arc plate 373 at the lower end of the fixed plate 371 is on the outer surface of the arc-shaped protrusion of the copper guide piece 35. Movement, the lower ends of the two fixing plates 371 are away from each other on the surface of the copper guide piece 35, so that the strip lines on the arc surface of the arc plate 373 scrape the outer surface of the arc-shaped protrusion of the copper guide piece 35. Due to long-term electrical conduction and the appearance of copper oxide on the surface of the copper guide piece 35, the conductive performance of the copper guide piece 35 is affected. The strip lines on the arc plate 373 can scrape the surface of the copper guide piece 35 to a certain extent, so that the copper oxide on the copper guide piece 35 is cleaned, thereby improving the conductive performance of the copper guide piece 35 after the plug terminal body 3 is repaired; In addition, when the fixing plate 371 moves away from the surface of the copper guide piece 35, the inner wall of the through slot 372 on the fixing plate 371 squeezes the wire on the copper guide piece 35, so that the wire adapts to the curved surface of the copper guide piece 35 and fits the curved surface of the copper guide piece 35. As the hinge plate 34 continues to rotate, the extrusion block 37 is continuously squeezed, and the extrusion block 37 squeezes the arc surface of the copper guide piece 35, causing the copper guide piece 35 to move in the state of the first embodiment described above, so that the end of the copper guide piece 35 close to the wire insertion hole 32 tends to be straight. During the process, as the extrusion block 37 is squeezed downward, the fixed plates 371 tend to be straight, so that the two fixed plates 371 limit the wires below them, avoiding vibration during the driving of the car and the operation of the mechanical equipment, which may cause the wires to vibrate and detach from the copper guide piece 35.

[0024] Example 3:

[0025] like Figures 2 to 5 As shown; a bar block 374 is provided on the fixed plate 371, and the bar block 374 is located at the upper opening of the through slot 372.

[0026] Here’s how it works: A strip block 374 is provided on the fixed plate 371, and the strip block 374 is the upper opening of the through slot 372; based on the above-mentioned embodiment 2, after the extrusion block 37 moves downward, the two fixed plates 371 gradually tend to a straight state. At this time, the strip block 374 at the upper opening of the through slot 372 on the fixed plate 371 squeezes the wire below it. In this process, the wire located below the two fixed plates 371 is squeezed by the strip blocks 374 on the two fixed plates 371 and the extrusion block 37 between the two fixed plates 371, respectively, so that the three points of the wire are limited, further avoiding the problem of the wire detaching from the copper guide plate 35.

[0027] Example 4:

[0028] like Figures 1 to 5 As shown; an elastic plate 375 is provided between the lower ends of the two strip blocks 374. In the initial state, the elastic plate 375 is bent upward; The elastic plate 375 is a metal nanoplate composite material, and the outer side of the elastic plate 375 is wrapped with polyurethane. Specifically, the elastic plate 375 is embedded in the polyurethane.

[0029] Here’s how it works: On the basis of the above-mentioned embodiment 2 and embodiment 3, an elastic plate 375 is provided between the two strip blocks 374, and the elastic plate 375 is bent upward, and the elastic plate 375 is made of a metal nanoplate composite material, so that the elastic plate 375 is incorporated into the polyurethane material; when the extrusion block 37 presses the arc-shaped protrusion at the upper end of the copper guide plate 35 downward, the lower ends of the two fixed plates 371 move away from each other. During the process, when the two fixed plates 371 move away from each other, the fixed plates 371 are opened. During the process, the two fixed plates 371 pull the two ends of the elastic plate 375 through the strip block 374, causing the two elastic plates 375 to deform. Since the elastic plate 375 is embedded with gold, the elastic plate 375 is deformed. Polyurethane, a nanocomposite material, allows the elastic plate 375 to stretch as the two strip blocks 374 move away from each other. When the extrusion block 37 stops moving, the two fixed plates 371 tend to be straight, and the strip blocks 374 on the fixed plates 371 squeeze the wires. At this time, the elastic plate 375 between the two strip blocks 374 is in a straightened state, with elastic deformation potential energy, allowing the elastic plate 375 to cling tightly to the copper guide plate 35. During this process, the elastic plate 375 is located above the wires, which enables the elastic plate 375 to squeeze the wires, keeping them close to the copper guide plate 35, thereby preventing the wires from detaching from the copper guide plate 35 during operation of the vehicle or equipment. And because the material of the elastic sheet is a metal nanoplate composite material embedded in polyurethane, when the metal nanoplates are in contact or close to each other in the polyurethane matrix, a continuous conductive network can be formed, and electrons can be efficiently transmitted through the conductive network, so that the elastic plate 375 does not affect the conductor performance between the wire and the copper conductor 35.

[0030] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A power harness safety connection device, comprising a wire plug end (1) and a plug end (2), wherein the plug end (2) is arranged at one end of the wire plug end (1); characterized in that; The plug-in terminal (1) comprises: The plug-in terminal body (3) has a cavity (31) formed therein, and a plurality of plug-in holes (32) formed on a side away from the plug-in terminal (2); a rectangular block (33) is provided on the inner wall of one end of the cavity (31) away from the plug-in holes (32), and a strip groove (331) is formed on one end of the rectangular block (33) away from the plug-in holes (32); There are two hinged plates (34), each hinged plate (34) is hinged to one end of the wire insertion terminal body (3) away from the wire insertion hole (32), and a semicircular ring (341) is provided at one end of the hinged plate (34) close to the wire insertion hole (32). The two hinged plates (34) are symmetrically distributed on the wire insertion terminal body (3); The copper guide piece (35) is an S-shaped structure. The copper guide piece (35) is arranged inside the cavity (31), and one end of the copper guide piece (35) close to the wire insertion hole (32) is fixed to the inner wall of the cavity (31). The arc-shaped opening of the end of the copper guide piece (35) close to the wire insertion hole (32) is downward; the end of the copper guide piece (35) away from the wire insertion hole (32) is located inside the strip groove (331), and the end of the copper guide piece (35) away from the wire insertion hole (32) is provided with a plurality of through holes (351); A guide block (36) is arranged at one end of the cavity (31) away from the wire insertion hole (32), and the end of the guide block (36) close to the copper guide piece (35) is arranged in an arc shape, and the arc surface of the end of the copper guide piece (35) away from the wire insertion hole (32) is in contact with the arc surface of the guide block (36); a guide groove (361) is provided on one side of the guide block (36); the guide groove (361) corresponds to the through hole (351) on the copper guide piece (35); The extrusion block (37) is slidably connected in the plug-in terminal body (3), the upper end of the extrusion block (37) is located outside the plug-in terminal body (3), the lower end is located inside the plug-in terminal body (3), and the extrusion block (37) is located just above the arc-shaped protrusion of the copper guide piece (35).

2. A power harness safety connection device according to claim 1, characterized in that: A convex block (342) is provided on the inner side of the hinge plate (34), and a rectangular groove (343) is provided on the upper end of the wire insertion end body (3). The rectangular groove (343) is communicated with the strip groove (331) inside the rectangular block (33), and a pressing block (344) is slidably connected inside the rectangular groove (343).

3. A power harness safety connection device according to claim 1, characterized in that: The lower end of the extrusion block (37) is hinged with two fixing plates (371), and the lower end of the fixing plate (371) contacts the upper arc-shaped raised surface of the copper guide plate (35) near one end of the wire insertion hole (32); the lower side of the fixing plate (371) is provided with a through groove (372), and the through groove (372) corresponds to the through hole (351).

4. A power harness safety connection device according to claim 3, characterized in that: An arc-shaped plate (373) is provided on the lower side of each fixed plate (371). In the initial state, an "eight" structure is formed between the two arc-shaped plates (373), and stripe patterns are provided on the arc-shaped surfaces of the arc-shaped plates (373).

5. A power harness safety connection device according to claim 4, characterized in that: The arc-shaped plate (373) and the fixed plate (371) are hingedly arranged.

6. A power harness safety connection device according to claim 3, characterized in that: A strip block (374) is provided on the fixing plate (371), and the strip block (374) is located at the upper opening of the through slot (372).

7. A power harness safety connection device according to claim 6, characterized in that: An elastic plate (375) is provided between the two strip blocks (374). In an initial state, the elastic plate (375) is bent upward.

8. The power harness safety connection device according to claim 6, characterized in that: The elastic plate (375) is a metal nanoplate composite material, and the outer side of the elastic plate (375) is wrapped with polyurethane, specifically, the elastic plate (375) is embedded in the polyurethane.

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