A terminal and a wire with terminal

Abstract

The application belongs to the technical field of electric wire terminals, and particularly relates to a wiring terminal and an electric wire with the terminal, which comprises a terminal main body, a U-shaped frame and a fixing unit, the terminal main body is divided into multiple independent intervals by plastic partitions, the U-shaped frame is fixedly connected in each independent interval in the terminal main body, the fixing unit is arranged at the upper end of the U-shaped frame, and a sliding rod is arranged in the fixing unit; the moving rod is driven by the sliding rod to move to the lowermost corner of the fixing groove, then the sliding rod is rotated to wind the electric wire terminal on the outer surface of the sliding rod, the electric wire terminal is wound and limited in the fixing hole, then the sliding rod is rotated to the time when the rotation cannot be continued, the sliding rod is loosened, at this time, the reset spring drives the sliding rod to move upward and is limited by the vertical corner in the fixing groove, the fixing of the electric wire terminal is completed, and the problem that the copper wire is prone to loosening due to corrosion caused by the screw fixing of the current wiring terminal is solved.

Description

Technical Field

[0001] This invention belongs to the field of wire terminal technology, specifically a wiring terminal and a wire with a terminal. Background Technology

[0002] Terminal blocks are accessories used to achieve electrical connections. They are used to facilitate the connection of wires. They are essentially metal pieces encased in insulating plastic, with holes at both ends for inserting wires. They are suitable for use in scenarios where a large number of wires need to be interconnected. Terminal blocks ensure that all wires are clearly distributed, making them suitable for later maintenance.

[0003] Currently, the commonly used terminal blocks in the market mainly use screws to fix the wires. However, in some humid environments, and where electricity is conducted and generates certain high temperatures, the screws and copper wires are prone to oxidation and corrosion, causing the copper wires to loosen and fall off, leading to sudden power outages. Furthermore, the need to turn the screws to fix the copper wires during wiring results in long installation times, as terminal blocks often have multiple independent terminals. This time-consuming method of fixing the copper wires severely impacts wiring efficiency and increases the workload of workers. Additionally, existing terminal blocks, which use screws to fix the copper wires, cannot be loosened in time when a short circuit occurs, causing the high temperatures generated by the short circuit to burn out the terminal block, thus increasing maintenance costs.

[0004] In view of this, the present invention provides a terminal block and a wire with a terminal block to solve the above-mentioned technical problems. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies and solve the problems of copper wire loosening due to screw corrosion and time-consuming screw fixing in existing terminal blocks, this invention proposes a terminal block and a wire with a terminal block.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a terminal block according to the present invention, comprising:

[0007] The terminal body is divided into multiple independent sections by plastic partitions;

[0008] U-shaped brackets, the U-shaped brackets being fixedly connected to each independent section within the terminal body;

[0009] A fixing unit is disposed at the upper end of the U-shaped frame, and the fixing unit is used to fix the copper wire;

[0010] A sliding rod is disposed in the fixed unit, and a mounting groove is provided at the lower end of the sliding rod.

[0011] Preferably, the fixing unit includes:

[0012] A fixed cylinder is fixedly connected to the upper end of the U-shaped frame, and the sliding rod is movably connected to the fixed cylinder;

[0013] A fixing groove is formed on the inner wall of the fixing cylinder, and the fixing groove is used to guide the sliding rod;

[0014] A return spring is sleeved on the outside of the sliding rod, and the lower end of the return spring is fixedly connected to the inner wall of the fixed cylinder.

[0015] Preferably, a movable rod is slidably connected to the outer wall of the sliding rod, the diameter of the movable rod is adapted to the width of the fixed groove, and a partition is fixedly connected to the outer side of the movable rod.

[0016] Preferably, a fixing hole is provided on the inner side of the terminal body, and the fixing hole is located directly below the sliding rod, and the diameter of the fixing hole is larger than the diameter of the sliding rod.

[0017] Preferably, the inner side of the sliding rod includes:

[0018] A stabilizer bar, which is slidably connected to the lower end of the sliding bar, and a conductive rod is fixedly connected to the lower end of the stabilizer bar;

[0019] An insulating plate is fixed to the lower side of the conductive rod, and the insulating plate is located on one side of the mounting groove notch;

[0020] The first push block is fixed to the top of the stabilizer bar;

[0021] The second push block is fixed to the outer circle of the stabilizer bar and is located below the first push block;

[0022] The diameter of the first pusher is larger than the diameter of the second pusher.

[0023] Preferably, the movable rod is disposed between the first push block and the second push block.

[0024] Preferably, a current sensor is fixedly connected to the inner wall of the sliding rod, and the conductive rod is electrically connected to the current sensor.

[0025] Preferably, an electromagnet is provided above the stabilizer bar, the electromagnet is electrically connected to the current sensor, and an adjusting spring is fixedly connected between the top of the stabilizer bar and the interior of the sliding bar.

[0026] Preferably, a common magnet is provided at the top of the stabilizer bar, and the magnetism generated by the common magnet is the same as the magnetism generated by the electromagnet on the opposite side when energized.

[0027] A terminal wire, the terminal wire being adapted to any of the terminal blocks described herein, including a wire terminal having a contact end at one end, the contact end being "C" shaped.

[0028] The beneficial effects of this invention are as follows:

[0029] 1. The present invention provides a terminal block and a wire with a terminal block. When a worker presses down a sliding rod in the fixing unit, the contact end moves down into the fixing hole. When the sliding rod moves the moving rod to the lowest corner of the fixing groove, the worker rotates the sliding rod to wrap the wire terminal around its outer surface, securing it within the fixing hole. This increases the friction between the lower end of the sliding rod and the wire terminal, reducing the possibility of the wire terminal slipping. The worker continues to rotate the sliding rod until it can no longer rotate, then releases it. At this point, a return spring moves the sliding rod upward, limiting the moving rod to a vertical corner in the fixing groove, preventing the sliding rod from rotating or moving. This quickly fixes the wire terminal and solves the problem that when current terminals are fixed with screws to copper wires, long-term corrosion of the screws in humid and high-temperature environments can cause the copper wire to loosen.

[0030] 2. The terminal block and wire with terminal block described in this invention, when a short circuit occurs in the circuit, the current sensor sends a signal of instantaneous current increase to the internal controller. The controller then controls the electromagnet to be de-energized, thereby eliminating the repulsive force between the stabilizing rod and the electromagnet. This causes the adjusting spring to quickly reset and move the stabilizing rod upward, thus separating the first push block from the moving rod. The moving rod slides towards the inside of the sliding rod under the spring sleeved on the outside. When the moving rod separates from the fixing groove, the sliding rod loses its limiting function and moves directly upward under the action of the reset spring, causing the wire terminal to separate from the conductor in the fixing hole. This de-energizes the wire terminal and prevents the overload current generated by the short circuit from burning out the terminal body. Attached Figure Description

[0031] The invention will now be further described with reference to the accompanying drawings.

[0032] Figure 1 This is a perspective view of the device of the present invention;

[0033] Figure 2 This is a perspective view of a single terminal block of the present invention;

[0034] Figure 3 This is a partial schematic diagram of the inner side of the device of the present invention;

[0035] Figure 4 This is a partial sectional perspective view of the fixing cylinder of the present invention;

[0036] Figure 5 This is a perspective view of the sliding rod of the present invention;

[0037] Figure 6 This is a partial sectional view of the sliding rod of the present invention;

[0038] Figure 7 This is a perspective view of the wire terminal of the present invention.

[0039] In the diagram: 1. Terminal body; 11. Fixing hole; 2. U-shaped frame; 3. Fixing unit; 31. Fixing cylinder; 311. Fixing groove; 32. Sliding rod; 321. Mounting groove; 33. Moving rod; 331. Partition plate; 34. Return spring; 35. Stabilizing rod; 351. Conductive rod; 352. Insulating plate; 353. First push block; 354. Second push block; 36. Current sensor; 361. Electromagnet; 362. Adjusting spring; 4. Wire terminal; 41. Contact end. Detailed Implementation

[0040] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0041] like Figures 1 to 7 As shown, the present invention provides a terminal block comprising:

[0042] Terminal body 1, which is divided into multiple independent sections by plastic partitions;

[0043] U-shaped frame 2, the U-shaped frame 2 being fixedly connected to each independent section in the terminal body 1;

[0044] Fixing unit 3, which is located at the upper end of the U-shaped frame 2, is used to fix the copper wire;

[0045] A sliding rod 32 is disposed in the fixing unit 3, and a mounting groove 321 is provided at the lower end of the sliding rod 32.

[0046] The wire with terminals is suitable for the aforementioned wiring terminals, including wire terminals 4, the end of which is provided with a contact end 41, which is "C" shaped.

[0047] During operation, the terminal body 1 is first soldered onto the designated circuit board using solder paste, and then checked to ensure that each contact on the terminal body 1 makes good contact with the circuit board. Then, depending on the different circuit connection combinations, the operator first presses the sliding rod 32 in the fixing unit 3 to move it down a short distance. Then, the copper wire containing the wire terminal 4 is placed into the U-shaped frame 2 at different positions in the terminal body 1, and the contact end 41 at the front end of the wire terminal 4 is placed in the mounting groove 321. Then, the operator continues to press the sliding rod 32 down, which moves the contact end 41 down, so that the contact end 41 is locked inside the terminal body 1, thus completing the fixing of the wire terminal 4. This greatly shortens the fixing time of the wire terminal 4 and avoids the problem that existing terminals mainly rely on screws to fix copper wires, which has a long screw rotation time and increases the labor intensity and task duration for tasks that require a large number of wires.

[0048] The fixing unit 3 includes:

[0049] A fixed cylinder 31 is fixedly connected to the upper end of the U-shaped frame 2, and the sliding rod 32 is movably connected to the fixed cylinder 31.

[0050] A fixing groove 311 is formed on the inner wall of the fixing cylinder 31, and the fixing groove 311 is used to guide the sliding rod 32;

[0051] A return spring 34 is sleeved on the outside of the sliding rod 32, and the lower end of the return spring 34 is fixedly connected to the inner wall of the fixed cylinder 31.

[0052] A movable rod 33 is slidably connected to the outer wall of the sliding rod 32. The diameter of the movable rod 33 is adapted to the width of the fixed groove 311. A partition plate 331 is fixedly connected to the outer side of the movable rod 33.

[0053] A fixing hole 11 is provided on the inner side of the terminal body 1, and the fixing hole 11 is located directly below the sliding rod 32. The diameter of the fixing hole 11 is larger than the diameter of the sliding rod 32.

[0054] Furthermore, the fixing process of the fixing unit 3 for the wire terminal 4 is as follows: When the contact end 41 is placed in the mounting groove 321, and the outer end of the moving rod 33 is located inside the fixing groove 311, when the operator presses the sliding rod 32 in the fixing unit 3 to move down, the moving rod 33 on the outer wall of the sliding rod 32 moves down along the fixing groove 311. At the same time, the sliding rod 32 will compress the return spring 34, so that the return spring 34 stores energy. And the inner side of the terminal body 1 is provided with a fixing hole 11, and the fixing hole 11 is located directly below the sliding rod 32. At the same time, the sliding rod 32 moves down and drives the connection through the mounting groove 321. The contact 41 moves down into the fixing hole 11; when the sliding rod 32 moves the moving rod 33 to the lowest corner of the fixing groove 311, the moving rod 33 is blocked, so the sliding rod 32 cannot move down further. Then, the operator rotates the sliding rod 32, so the moving rod 33 slides horizontally in the fixing groove 311, allowing the sliding rod 32 to wrap the wire terminal 4 around its outer surface. Because the diameter of the fixing hole 11 is larger than the diameter of the sliding rod 32, the sliding rod 32 can wrap and confine the wire terminal 4 in the fixing hole 11, thereby increasing the friction between the lower end of the sliding rod 32 and the wire terminal 4 and reducing the friction. To prevent the possibility of slippage of the wire terminal 4, a conductor for transmitting current is provided in the fixing hole 11. When the wire terminal 4 enters the fixing hole 11, it will contact the conductor, thus enabling normal current transmission. Then, continue rotating the sliding rod 32 until it can no longer be rotated. The operator releases the sliding rod 32, at which point the return spring 34 releases its elastic potential energy, thereby causing the sliding rod 32 to move upward. This causes the moving rod 33 to move upward a short distance along the fixing groove 311. At this point, the moving rod 33 is limited by the vertical corner in the fixing groove 311, preventing the sliding rod 32 from rotating or moving, thus completing the current transmission. The fixing of the wire terminal 4 enables quick fixation of the wire terminal 4, reducing the time required for fixation. The wire terminal 4 is wrapped in the mounting groove 321 of the sliding rod 32 and confined in the fixing hole 11. Because the wire terminal 4 is wrapped in the mounting groove 321 of the sliding rod 32, it is not easy for it to slip when the copper wire corrodes. It also increases the contact area between the wire terminal 4 and the sliding rod 31, thereby solving the problem that when the copper wire is fixed by tightening the screw, the contact area between the copper wire and the screw end is small, which leads to the screw being prone to corrosion and causing the copper wire to loosen in a humid and high-temperature environment for a long time.

[0055] The inner side of the sliding rod 32 includes:

[0056] A stabilizing rod 35 is slidably connected to the lower end of the sliding rod 32, and a conductive rod 351 is fixedly connected to the lower end of the stabilizing rod 35.

[0057] An insulating plate 352 is fixed to the lower side of the conductive rod 351, and the insulating plate 352 is located on one side of the notch of the mounting groove 321.

[0058] The first push block 353 is fixedly connected to the top of the stabilizer bar 35;

[0059] The second push block 354 is fixedly connected to the outer circle of the stabilizer bar 35 and is located below the first push block 353.

[0060] The diameter of the first pusher block 353 is larger than the diameter of the second pusher block 354.

[0061] Furthermore, when the contact end 41 is placed in the mounting groove 2, the "C"-shaped contact end 41 contacts the lower outer curved surface of the conductive rod 351 through its inner curved surface, ensuring that the conductive rod 351 can transmit current normally and provide a stable current to the electromagnet 361. In addition, the "C"-shaped contact end 41 is directly fitted onto the lower end of the conductive rod 351, avoiding the conductive rod 351 pressing on the contact end 41. At the same time, it prevents the existing terminal block from being fixed by directly pressing the copper wire with screws. Because the diameter of the screw is relatively small, when the screw is directly pressed on the copper wire, the screw will generate a large pressure on the copper wire, which can easily damage the surface of the copper wire. This avoids the conductive rod 351 directly pressing on the contact end 41, thereby reducing the damage to the contact end 41.

[0062] The movable rod 33 is disposed between the first push block 353 and the second push block 354;

[0063] An electromagnet 361 is provided above the stabilizer 35. The electromagnet 361 is electrically connected to the current sensor 36. An adjusting spring 362 is fixedly connected between the top of the stabilizer 35 and the inside of the sliding rod 32.

[0064] The top of the stabilizer bar 35 is provided with a common magnet, and the magnetism generated by the common magnet is the same as the magnetism generated by the electromagnet 361 on the opposite side when it is energized.

[0065] Furthermore, under the pulling action of the adjusting spring 362, the second push block 354 always supports the front end of the moving rod 33 in the fixed groove 311. At the same time, the moving rod 33 compresses the spring sleeved on the outside through the partition plate 331. Then, when the circuit is running normally, the electromagnet 361 is powered through the conductive rod 351. At the same time, a common magnet is set at the top of the stabilizer 35, and the magnetism generated by the common magnet is the same as the magnetism generated by the electromagnet 361 on the opposite side when it is energized. Thus, a repulsive force is generated between the electromagnet 361 and the common magnet. The magnetic force generated by the electromagnet 361 pushes the stabilizer 35 downward and causes the second push block 354 to separate from the moving rod 33. At this time, the spring sleeved on the outside of the moving rod 33 releases elastic potential energy to drive the moving rod. As the sliding rod 33 moves inward toward the sliding rod 32, the first push block 353 also moves downward. Because the diameter of the first push block 353 is larger than the diameter of the second push block 354, when the sliding rod 33 moves inward toward the sliding rod 32, the partition 331 on the sliding rod 33 will first contact the edge of the first push block 353, thus blocking the sliding rod 33 from moving further. This prevents the sliding rod 33 from moving further inward and completely separating from the fixing groove 311, causing the sliding rod 32 to lose its limiting function and reset under the action of the return spring 34. Then, the first push block 353 continues to move downward under the pushing force of the electromagnet 361, thus pushing the sliding rod 33 to re-contact the fixing groove 311.

[0066] At the same time, the conductive rod 351 moves down, causing the insulating plate 352 to contact the contact end 41. Because the contact surface between the insulating plate 352 and the contact end 41 is a rough surface, the friction between the insulating plate 352 and the contact end 41 is increased, enhancing the contact stability between the conductive rod 351 and the contact end 41 and preventing the possibility of the wire terminal 4 slipping off.

[0067] A current sensor 36 is fixedly connected to the inner wall of the sliding rod 32, and the conductive rod 351 is electrically connected to the current sensor 36.

[0068] Furthermore, when the wire terminal 4 is normally energized, the current sensor 36 is activated and constantly monitors the current change in the conductive rod 351. When a short circuit occurs in the circuit, the current in the conductive rod 351 will increase sharply and instantaneously. Then, the current sensor 36 sends the signal of the instantaneous increase in current to the internal controller. The controller then controls the electromagnet 361 to be de-energized, thereby eliminating the repulsive force between the stabilizing rod 35 and the electromagnet 361. This causes the stretched adjusting spring 362 to quickly reset and drive the stabilizing rod 35 to move upward. As a result, the first push block 353 separates from the moving rod 33, allowing the moving rod 33 to slide inward toward the sliding rod 32 under the spring sleeved on the outside. Because the diameter of the first push block 353 is larger than the diameter of the second push block 354, when the moving rod 33 moves inward and completely separates from the fixing groove 311, the second push block 354 will contact the partition 331, thereby resetting the conductive rod 351 and separating it from the contact end 41.

[0069] When the moving rod 33 separates from the fixed groove 311, the sliding rod 32 loses its limiting function and moves directly upward under the action of the return spring 34, thereby releasing the fixing of the wire terminal 4 and causing the wire terminal 4 to separate from the conductor in the fixing hole 11, thus de-energizing the wire terminal 4 and preventing the overload current generated by the short circuit from burning the terminal body 1, thereby reducing losses. At the same time, the second push block 354 applies pressure to the moving rod 33 under the action of the adjusting spring 362. When the moving rod 33 moves to the upper side of the fixed groove 311, the moving rod 33 re-enters the fixed groove 311 under the pressure of the second push block 354. Then, when the sliding rod 32 needs to fix the wire terminal 4 again, it is necessary to rotate the sliding rod 32 first to ensure that the moving rod 33 can move vertically downward in the fixed groove 311 and then fix the wire terminal 4. This increases the safety of the operator and avoids the situation where some people do not know the situation and directly press the sliding rod 32 to fix the wire terminal 4 when the short circuit fault has not been eliminated, which may easily cause personal injury.

[0070] The specific workflow is as follows:

[0071] When the operator presses down the sliding rod 32 in the fixing unit 3, the moving rod 33 on the outer wall of the sliding rod 32 moves down along the fixing groove 311. A fixing hole 11 is provided on the inner side of the terminal body 1, and the fixing hole 11 is located directly below the sliding rod 32. Simultaneously, the sliding rod 32 moves down and, through the mounting groove 321, drives the contact end 41 down into the fixing hole 11. When the sliding rod 32 drives the moving rod 33 to the lowest corner of the fixing groove 311, the sliding rod 32 can no longer move down. Then, the operator rotates the sliding rod 32, causing the moving rod 33 to slide horizontally in the fixing groove 311, so that the sliding rod 32 wraps the wire terminal 4 around itself. The outer surface of the body, and because the diameter of the fixing hole 11 is larger than the diameter of the sliding rod 32, the sliding rod 32 can wrap around and restrict the wire terminal 4 in the fixing hole 11, thereby increasing the friction between the lower end of the sliding rod 32 and the wire terminal 4; then continue to rotate the sliding rod 32 until it can no longer be rotated, the operator releases the sliding rod 32, at this time the return spring 34 releases elastic potential energy to drive the sliding rod 32 to move upward, so that the moving rod 33 moves upward a small distance along the fixing groove 311. At this time, the moving rod 33 is limited by the vertical corner in the fixing groove 311, so that the sliding rod 32 cannot rotate or move, thereby completing the fixing of the wire terminal 4.

[0072] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0073] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wiring terminal characterized by comprising: The utility model relates to a terminal body (1) is divided into multiple independent intervals by plastic partition plate, U-shaped frame (2) is fixed in each independent interval in terminal body (1), fixed unit (3) is arranged in the upper end of U-shaped frame (2), and fixed unit (3) is used to realize the fixed of copper wire, sliding rod (32) is arranged in fixed unit (3), and the lower end of sliding rod (32) is provided with mounting groove (321), and fixed unit (3) includes fixed cylinder (31) is fixed in the upper end of U-shaped frame (2), and sliding rod (32) is movably connected between fixed cylinder (31), fixed groove (311) is set up on the inner wall of fixed cylinder (31), and fixed groove (311) is used for guiding sliding rod (32), reset spring (34) is sleeved on the outside of sliding rod (32), and the lower end of reset spring (34) is fixed with the inner wall of fixed cylinder (31), the inside of sliding rod (32) includes stabilizing rod (35) is movably connected with the lower end of sliding rod (32), and the lower end of stabilizing rod (35) is fixed with conducting rod (351), insulating plate (352) is fixed in the lower side of conducting rod (351), and insulating plate (352) is located on the one side of the gap of mounting groove (321), first push block (353) is fixed in the top of stabilizing rod (35), second push block (354) is fixed on the outer circle of stabilizing rod (35), and is located below first push block (353), the diameter of first push block (353) is greater than the diameter of second push block (354), the outer wall of sliding rod (32) is movably connected with moving rod (33), the diameter of moving rod (33) is adapted to the width of fixed groove (311), and the outside of moving rod (33) is fixed with partition plate (331), and moving rod (33) is arranged between first push block (353) and second push block (354), the inner wall of sliding rod (32) is fixed with current sensor (36), and conducting rod (351) is electrically connected with current sensor (36), the upper side of stabilizing rod (35) is provided with electromagnet (361), and electromagnet (361) is electrically connected with current sensor (36), and the top of stabilizing rod (35) is fixed with the inside of sliding rod (32) and is fixed with adjusting spring (362). The inside of terminal body (1) is provided with fixed hole (11), and the fixed hole (11) is located below sliding rod (32), and the diameter of fixed hole (11) is greater than the diameter of sliding rod (32). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2. A terminal according to claim 1, wherein: ​ 3. A terminal according to claim 1, wherein: The top end of the stabilizer bar (35) is provided with a common magnet, which generates the same magnetic force as the opposite electromagnetic magnet (361) when energized.

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