Wire holder capable of quickly disassembling and assembling cable

Abstract

The utility model belongs to the technical field of wire holders, and particularly discloses a wire holder capable of quickly disassembling and assembling a cable, which comprises a metal guide sheet and an insulating body, a metal pressing frame and an adjusting screw are arranged in the insulating body, the head of the adjusting screw is exposed out of the insulating body, one end of the metal guide sheet is inserted into the insulating body, and the other end of the metal guide sheet is inserted into the insulating body. The metal pressing frame is sleeved on the metal guide sheet to form a crimping space together, the adjusting screw is in threaded connection with the metal pressing frame, the adjusting screw penetrates through the side wall of the metal pressing frame and vertically abuts against the metal guide sheet, and an insertion opening is formed in the position, corresponding to the crimping space, of the side wall of the insulating body. According to the utility model, the metal pressing frame is controlled by the adjusting screw to move in the insulating body, so that quick wire pressing or quick wire dismounting is realized, the cable is simple to mount and dismount, and two surfaces of a wire core or a wire nose of the cable are respectively and tightly contacted with the metal guide sheet and the metal pressing frame, so that double-surface conductive contact is realized; and the wire performance, durability and reliability of the cable and the wire holder are better.

Description

Technical Field

[0001] The utility model belongs to the technical field of terminal blocks, and particularly relates to a terminal block capable of quickly disassembling and assembling cables. Background Art

[0002] In modern electronic devices and energy management systems, such as the electrical connections between key components like inverters and energy storage batteries, their reliability and convenience have a crucial impact on the overall performance and maintenance efficiency of the system. As an important connecting component for the connection between inverters and energy storage battery packs and other devices, the performance of the terminal block directly affects the efficiency and safety of the entire system.

[0003] The existing designs of inverter and energy storage battery terminal blocks often adopt a screw and nut fastening mechanism. For example, for the terminal block of an inverter, as Figure 1 and Figure 2 shown, the housing 11 is fixed on the chassis of the inverter 1. A part of the copper sheet 21 on the housing 11 is located inside the inverter 1 and is used to connect with the electronic components inside the inverter 1, and the other part is located outside the inverter 1. A stud 121 is vertically connected to the part of the copper sheet 21 located outside the inverter 1. During installation, first, the terminal lug 14 at the end of the cable is sleeved on the stud 121, then the nut and screw set 13 (i.e., multiple screws and nuts) is screwed on, and finally, a cover (not shown) is covered, and the cable can be connected to the inverter 1. Although this terminal block realizes electrical connection to a certain extent, there are also the following disadvantages:

[0004] (1) Complicated installation and disassembly: Inverters are usually installed inside the casings of vehicles or equipment, where the space is relatively narrow and the operation is inconvenient. The existing terminal blocks need to tighten multiple screws and nuts one by one to fix the cables. This process is not only time-consuming and laborious but also prone to collisions or damage to other components in the narrow space. In addition, small components such as screws and nuts are easy to lose during the operation, further increasing the installation difficulty and cost;

[0005] (2) Limited conductivity: The existing terminal blocks usually connect the cable and the copper sheet 12 in a single-sided contact manner (i.e., only one side of the copper sheet 12 contacts the terminal lug 14 of the cable). This design limits the current flow path, resulting in poor conductivity. Especially in high-current application scenarios, this limitation may cause problems such as local overheating and increased resistance, affecting the stability and safety of the electrical system;

[0006] (3) Insufficient durability and reliability: Mobile devices such as vehicles will generate vibrations and impacts during use, which pose a severe challenge to the fastening performance of traditional terminal blocks. Long-term vibrations are likely to cause problems such as loose screws and fallen nuts, thus affecting the stability and reliability of the electrical connection. In addition, frequent disassembly and assembly operations may also accelerate the wear and damage of the screws, further shortening the service life of the product.

[0007] Therefore, the inventor is committed to designing a terminal block to solve the above problems. Summary of the Invention

[0008] The purpose of the present utility model is to provide a terminal block for quickly disassembling and assembling cables, which is not only simple in installation and disassembly, can achieve quick disassembly and assembly of cables, but also has good electrical conductivity, and has good durability and reliability.

[0009] In order to achieve the above object, a technical solution adopted by the present utility model is:

[0010] A terminal block for quickly disassembling and assembling cables includes a metal guide piece and an insulating body. A metal pressing frame and an adjusting screw are provided in the insulating body. The head of the adjusting screw is exposed outside the insulating body. One end of the metal guide piece is inserted into the insulating body. The metal pressing frame is sleeved on the metal guide piece to jointly form a pressing space. The adjusting screw is threadedly connected to the metal pressing frame. The adjusting screw passes through the side wall of the metal pressing frame and vertically presses against the metal guide piece. An insertion port is provided on the side wall of the insulating body corresponding to the pressing space.

[0011] As an improvement of the terminal block for quickly disassembling and assembling cables of the present utility model, the pressing space and the adjusting screw are respectively located on two opposite sides of the metal guide piece.

[0012] As an improvement of the terminal block for quickly disassembling and assembling cables of the present utility model, the top of the insulating body is hollowed out and covered with a cover body. An adjusting hole is provided on the cover body corresponding to the position of the adjusting screw.

[0013] As an improvement of the terminal block for quickly disassembling and assembling cables of the present utility model, the adjusting hole and the adjusting screw are coaxially arranged, and the diameter of the adjusting hole is smaller than that of the adjusting screw.

[0014] As an improvement of the terminal block for quickly disassembling and assembling cables of the present utility model, the other end of the metal guide piece extends outside the insulating body and is on the same side as a plurality of fixing nuts on the outer wall of the insulating body. The insulating body is formed by injection molding and encapsulation of all the fixing nuts and the metal guide piece.

[0015] As an improvement of the terminal block for quickly disassembling and assembling cables of the present utility model, a stop portion is convexly provided on the side surface of the metal guide piece. The stop portion is located inside the insulating body and presses against the insulating body.

[0016] As an improvement of the terminal block for quickly disassembling and assembling cables of the present utility model, a plurality of anti-slip grooves are spaced on one side surface of the metal guide piece surrounding the pressing space. Each anti-slip groove is strip-shaped and perpendicular to the insertion direction of the cable.

[0017] As an improvement to the wiring base for quickly disassembling and assembling cables of the present utility model, sliding grooves are respectively vertically provided on the opposite inner walls of the insulating body, and the corresponding two ends of the metal pressing frame are respectively slidably installed in the two sliding grooves.

[0018] As an improvement to the wiring base for quickly disassembling and assembling cables of the present utility model, a connecting portion with an external thread extends integrally outward from the side wall of the insulating body. A locking nut is screwed tightly on the connecting portion, and the other end of the metal conducting piece penetrates and extends out along the axial direction of the connecting portion.

[0019] As an improvement to the wiring base for quickly disassembling and assembling cables of the present utility model, outer convex portions extend integrally outward from the corresponding outer walls of the insulating body. The extending ends of the metal conducting pieces and the two outer convex portions are on the same side of the insulating body, and the chamfer at the corner of the end of the metal conducting piece is matched with the inclined table on the inner wall of the insulating body.

[0020] Compared with the prior art, for the wiring base for quickly disassembling and assembling cables of the present utility model, by sleeving a metal conducting piece at the part where the metal conducting piece is inserted into the insulating body, a pressing space for pressing the wire core or wire nose on the cable is jointly formed. The movement of the metal pressing frame in the insulating body is controlled by an adjusting screw to adjust the size of the pressing space, so as to achieve quick wire pressing or quick wire disconnection, making the installation and disassembly of the cable simple. Moreover, the wire core or wire nose of the cable is in close contact with the metal conducting piece and the metal pressing frame on both sides respectively, realizing double-sided conductive contact, and making the wire performance, durability and reliability of the cable and the wiring base better. Description of the Drawings

[0021] Figure 1 is a three-dimensional structural schematic diagram of an existing wiring base and an inverter in the prior art;

[0022] Figure 2 is Figure 1 an enlarged view of part A in

[0023] Figure 3 is a three-dimensional view of the wiring base for quickly disassembling and assembling cables according to the first embodiment of the present utility model;

[0024] Figure 4 is a three-dimensional view of the wiring base for quickly disassembling and assembling cables according to the first embodiment of the present utility model in the open cover state;

[0025] Figure 5 is a three-dimensional exploded view of the wiring base for quickly disassembling and assembling cables according to the first embodiment of the present utility model;

[0026] Figure 6 is an enlarged three-dimensional assembled view of the metal conducting piece, the metal pressing frame and the adjusting screw according to the first embodiment of the present utility model;

[0027] Figure 7 is a cross-sectional view of the wiring base for quickly detachable cables according to the first embodiment of the present utility model;

[0028] Figure 8 is a perspective view of the wiring base for quickly detachable cables according to the second embodiment of the present utility model;

[0029] Figure 9 is a perspective view of the wiring base for quickly detachable cables according to the second embodiment of the present utility model in the open cover state;

[0030] Figure 10 is an exploded perspective view of the wiring base for quickly detachable cables according to the second embodiment of the present utility model;

[0031] Figure 11 is an enlarged assembled perspective view of the metal guide piece, metal pressing frame and adjusting screw according to the second embodiment of the present utility model;

[0032] Figure 12 is a cross-sectional view of the wiring base for quickly detachable cables according to the second embodiment of the present utility model;

[0033] Figure 13 is a perspective view of the wiring base for quickly detachable cables according to the third embodiment of the present utility model;

[0034] Figure 14 is a perspective view of the wiring base for quickly detachable cables according to the third embodiment of the present utility model in the open cover state;

[0035] Figure 15 is an exploded perspective view of the wiring base for quickly detachable cables according to the third embodiment of the present utility model;

[0036] Figure 16 is an enlarged assembled perspective view of the metal guide piece, metal pressing frame and adjusting screw of the present utility model;

[0037] Figure 17 is an enlarged assembled perspective view of the metal guide piece, metal pressing frame and adjusting screw from another perspective of the present utility model;

[0038] Figure 18 is an enlarged perspective view of the insulating body of the present utility model.

[0039] Illustration:

[0040] 1. Inverter; 11. Housing; 12. Copper sheet; 121. Stud; 13. Nut and screw set; 14. Line nose; 2. Insulating body; 21. Insertion port; 22. Fixed nut; 23. Chute; 24. Inclined table; 25. Outer convex part; 26. Connecting part; 3. Metal guide piece; 31. Anti-slip groove; 32. Stopping part; 33. Chamfer; 4. Metal pressing frame; 41. Screw hole; 42. Through groove; 5. Adjusting screw; 6. Cover body; 61. Adjusting hole; 7. Cavity; 71. Crimping space; 8. Locking nut. Detailed implementation mode

[0041] The following combines the drawings to specifically clarify the implementation mode of the present utility model. The drawings are only for reference and explanation, and do not constitute a limitation on the scope of patent protection of the present utility model.

[0042] Embodiment 1

[0043] Refer to Figures 3 to 7 , a wiring seat for quickly disassembling and assembling cables, including a metal guide piece 3, an insulating body 2, a metal pressing frame 4 and an adjusting screw 5. The metal pressing frame 4 and the adjusting screw 5 are both located inside the insulating body 2. The head of the adjusting screw 5 is exposed outside the insulating body 2, which is convenient for using a screwdriver to screw the adjusting screw 5. One end of the metal guide piece 3 is inserted into the insulating body 2, and the metal pressing frame 4 is sleeved on the metal guide piece 3 to jointly form a crimping space 71. The adjusting screw 5 is threadedly connected with the metal pressing frame 4. The adjusting screw 5 passes through the side wall of the metal pressing frame 4 and vertically presses against the metal guide piece 3. An insertion port 21 is provided on the side wall of the insulating body 2 corresponding to the position of the crimping space 71.

[0044] Refer to Figure 4 , Figure 5 and Figure 7 , the top of the insulating body 2 is hollowed out. The insertion port 21 is located on the right side wall of the insulating body 2. A plurality of fixed nuts 22 are inserted on the left wall of the insulating body 2. Users can fixedly connect the plurality of fixed nuts 22 with the chassis (such as the chassis of an inverter) through a plurality of screws inside the chassis, so as to fix the entire wiring seat on the chassis. One end of the metal guide piece 3 is inserted into the insulating body 2, and the other end of the metal guide piece 3 extends outside the insulating body 2 and is on the same side as the plurality of fixed nuts 22 on the outer wall of the insulating body 2 (that is, the part of the metal guide piece 3 extending outside the insulating body 2 and the plurality of fixed nuts 22 are both on the left wall of the insulating body 2). The part of the metal guide piece 3 extending outside the insulating body 2 can be inserted into the chassis (such as the chassis of an inverter) for electrical connection with the electronic components of the chassis. The insulating body 2 is formed by injection molding and encapsulation of all the fixed nuts 22 and the metal guide piece 3.

[0045] Refer to Figure 4 , Figure 5 , Figure 6 and Figure 7, the metal guide piece 3 is strip-shaped and made of metal material, the metal pressing frame 4 is frame-shaped, the number of adjusting screws 5 can be one or multiple. In this embodiment, the number of adjusting screws 5 is preferably two, and the two adjusting screws 5 are arranged at intervals. Two screw holes 41 are provided at intervals on the top of the metal pressing frame 4. The crimping space 71 and the adjusting screws 5 are respectively located on two opposite sides of the metal guide piece 3. Specifically, the crimping space 71 is located directly below the metal guide piece 3, and the two adjusting screws 5 are located directly above the metal guide piece 3. The two adjusting screws 5 respectively pass through the two screw holes 41 and their ends jointly press against the top surface of the metal guide piece 3.

[0046] Referring to Figure 5 , the top of the insulating body 2 is hollowed out and covered with a cover body 6 to form a cavity 7. The two adjusting screws 5 and the entire metal pressing frame 4 are both located in the cavity 7. Two adjusting holes 61 are provided on the cover body 6 corresponding to the positions of the two adjusting screws 5. The two adjusting holes 61 are arranged coaxially with the two adjusting screws 5 one by one. Each adjusting hole 61 is located directly above the corresponding adjusting screw 5. The diameter of the adjusting hole 61 is smaller than the diameter of the adjusting screw 5 to block the adjusting screw 5 and ensure that the adjusting screw 5 is always located in the cavity 7. The insulating body 2 and the cover body 6 jointly wrap the live metal parts, which can ensure the safety of the cable disassembly and assembly process.

[0047] Referring to Figures 3 to 7 , the usage method of the cable connection seat that can be quickly disassembled and assembled in this embodiment is as follows:

[0048] Insert the part of the metal guide piece 3 extending outside the insulating body 2 into the chassis (such as the chassis of an inverter) so that the extending part of the metal guide piece 3 can be electrically connected to the electronic components inside the chassis. The side of the connection seat with the fixing nut 22 is closely attached to the chassis. Inside the chassis, the multiple fixing nuts 22 are fixedly connected to the chassis through multiple screws, and then the entire connection seat can be installed on the chassis;

[0049] When installing a cable, first insert the core or terminal of the cable into the crimping space 71 from the insertion port 21 of the insulating body 2, and then insert a screwdriver into the cavity 7 from the adjusting hole 61. Turn the screwdriver (the bottom of the screwdriver matches the head of the adjusting screw 5) to make the adjusting screw 5 rotate, control the metal pressing frame 4 to move upward, reduce the crimping space 71 until the metal pressing frame 4 and the metal guide piece 3 jointly clamp the core or terminal of the cable tightly, and the cable installation is completed;

[0050] When removing the cable, turn the screwdriver in the reverse direction to make the adjusting screw 5 rotate in the reverse direction, control the metal pressing frame 4 to move downward, and then the crimping space 71 can be enlarged. At this time, the user can quickly take out the cable, and the cable disassembly work is completed.

[0051] Embodiment Two

[0052] Referring to Figure 8and Figure 12 This is the second embodiment of the present utility model. The difference between this embodiment and the first embodiment is as follows: In this embodiment, a stop portion 32 is convexly provided on the upper side of the metal guide piece 3. The stop portion 32 is located inside the insulating body 2 and presses against the insulating body 2, which can prevent the metal guide piece 3 from loosening or coming out. On one side of the metal guide piece 3 that encloses to form a crimping space 71, a plurality of anti-slip grooves 31 are provided at intervals. Each anti-slip groove 31 is strip-shaped and perpendicular to the insertion direction of the cable. The plurality of anti-slip grooves 31 can increase the friction force and prevent the cable from coming out. On the opposite inner walls of the insulating body 2, sliding grooves 23 are respectively provided vertically. The corresponding two ends of the metal pressing frame 4 are respectively slidably installed in the two sliding grooves 23. The number of adjusting screws 5 can be one or multiple. In this embodiment, the number of adjusting screws 5 is preferably one, and the number of screw holes 41 is also correspondingly one. The other structures and usage methods of this embodiment are the same as those of the first embodiment and will not be elaborated here.

[0053] Embodiment Three

[0054] Refer to Figures 13 to 18 This is the third embodiment of the present utility model. The difference between this embodiment and the second embodiment is as follows: In this embodiment, a fixing nut 22 is not provided on the installation side wall of the insulating body 2. The side wall of the insulating body 2 integrally extends outward with a connecting portion 26 with an external thread. A locking nut 8 is screwed on the connecting portion 26. The other end of the metal guide piece 3 penetrates and extends out along the axial direction of the connecting portion 26. When the metal guide piece 3 and the connecting portion 26 extend into the chassis, the user can screw the connecting portion 26 on the connecting portion 26 inside the chassis so as to quickly install the entire wiring seat on the chassis. On the corresponding outer walls of the insulating body 2, an outwardly protruding portion 25 is integrally extended outward respectively. The extending end of the metal guide piece 3 and the two outwardly protruding portions 25 are on the same side of the insulating body 2. The chamfer 33 at the corner of the end of the metal guide piece 3 cooperates with the inclined table 24 on the inner wall of the insulating body 2. A through groove 42 is provided on the inner top wall of the metal pressing frame 4. The other structures and the method of disassembling and assembling the cable of this embodiment are the same as those of the second embodiment and will not be elaborated here.

[0055] The wiring seat of the present utility model that can quickly disassemble and assemble the cable has the following beneficial technical effects:

[0056] (1) By using the plug-in wiring method, the adjusting screw 5 is used to control the up and down movement of the metal pressing frame 4 to press the wire tightly, realizing quick connection (the adjusting screw 5 does not directly contact the cable, and the adjusting screw 5 does not need to be taken out during the up and down movement of the metal pressing frame 4);

[0057] (2) When the cable needs to be taken out, only need to twist the adjusting screw 5 to loosen the metal pressing frame 4 and make the metal pressing frame 4 move downward, then the cable can be quickly loosened and quickly taken out, realizing the quick removal of the wiring.

[0058] (3) Design an insulating body 2 around the metal pressing frame 4, metal guide piece 3 and adjusting screw 5, and fully wrap each metal part, so that all metal parts move within the safe insulating body 2, ensuring the safety of users when disassembling and assembling cables;

[0059] (4) Design the terminal into a double-sided contact structure. Use the insulating body 2 to completely seal the metal guide piece 3, metal pressing frame 4 and adjusting screw 5, ensuring that the metal pressing frame 4 and adjusting screw 5 can move freely within the insulating body 2 and are not easily detached. It can not only quickly lock the wire core or wire nose of the cable, but also quickly loosen and remove the cable, ensuring safety and convenience. It is not only fast and safe during wiring, but also convenient, fast and safe when taking out the wire. It is safe and reliable during use, can also increase the conductivity, and is more suitable for high-current fast input and output;

[0060] (5) For terminals with high-current requirements, widen and thicken the current-carrying bar, and then increase the number of screws to increase the conduction area, thereby increasing the current conduction amount and ensuring high-current conduction;

[0061] The above-disclosed are only the preferred embodiments of the present utility model, and cannot be used to limit the scope of the patent protection of the present utility model. Therefore, equivalent changes made according to the scope of the patent application of the present utility model still fall within the scope covered by the present utility model.

Claims

1. A terminal block capable of quickly disassembling and assembling a cable, comprising a metal guide and an insulating body, characterized in that: A metal pressing frame and an adjusting screw are provided in the insulating body, the head of the adjusting screw is exposed in the insulating body, one end of the metal guide is inserted into the insulating body, the metal pressing frame is sleeved on the metal guide to form a crimping space, the adjusting screw is threadedly connected to the metal pressing frame, the adjusting screw passes through the side wall of the metal pressing frame and vertically presses the metal guide, and an insertion port is provided on the side wall of the insulating body at a position corresponding to the crimping space.

2. The cable connector for quick detachable cables according to claim 1, characterized in that: The crimping space and the adjusting screw are respectively located at two opposite sides of the metal guide.

3. The cable connector for quick detachable cables according to claim 1, characterized in that: The top of the insulating body is hollowed out and covered with a cover body, and the cover body is provided with an adjustment hole at a position corresponding to the adjustment screw.

4. The cable connector for quick detachable cables according to claim 3, characterized in that: The adjusting hole is coaxially arranged with the adjusting screw, and the diameter of the adjusting hole is smaller than that of the adjusting screw.

5. The cable connector for quick detachable cables according to claim 1, characterized in that: The other end of the metal guide piece extends out of the insulating body and is located on the same side as a plurality of fixing nuts on the outer wall of the insulating body. The insulating body is formed by injection molding of all the fixing nuts and the metal guide piece.

6. The cable connector for quick detachable cables according to claim 1, characterized in that: A stopper is protruding from the side surface of the metal guide piece, and the stopper is located in the insulating body and presses against the insulating body.

7. The cable connector for quick detachable cables according to claim 1, characterized in that: A plurality of anti-skid grooves are arranged at intervals on one side surface of the metal guide sheet that surrounds the crimping space, and each of the anti-skid grooves is in a long strip shape and is perpendicular to the insertion direction of the cable.

8. The cable connector for quick detachable cables according to claim 1, characterized in that: The opposite inner walls of the insulating body are respectively provided with sliding grooves in a vertical direction, and the corresponding two ends of the metal pressing frame are respectively slidably installed in the two sliding grooves.

9. The cable connector for quick detachable cables according to claim 1, characterized in that: A connecting portion with an external thread is integrally extended outward from the side wall of the insulating body, a locking nut is screwed on the connecting portion, and the other end of the metal guide piece penetrates and extends out along the axial direction of the connecting portion.

10. The cable connector capable of rapid assembly and disassembly according to claim 1, characterized in that: The corresponding outer walls of the insulating body are respectively provided with outer protrusions extending outwards, the extended end of the metal guide and the two outer protrusions are located on the same side of the insulating body, and the chamfer at the corner of the end of the metal guide matches the inclined platform on the inner wall of the insulating body.

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