A high-density short-circuit-proof modular terminal block structure
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-15
- Publication Date
- 2026-08-14
AI Technical Summary
在实际应用中,传统端子排在线缆连接方面存在明显缺陷,当线缆连接完成后,由于端子排结构设计不合理,线缆间距过近,极易因外力挤压、绝缘层磨损等原因导致线缆间短路,严重影响电气系统的正常运行,甚至引发安全事故,此外,传统端子排通常缺乏有效的灰尘防护措施,在工业生产、户外作业等不同工作环境中,空气中的灰尘、金属粉末等杂质容易飘落至端子内部,这些杂质的积累不仅会造成端子接触不良,还可能导致电路短路,极大地降低了端子排的使用寿命和电气系统的稳定性,增加了设备维护成本和安全隐患
传导块外壁包裹的套管,能够有效隔离传导块与外界,极大降低短路风险;连接管与调节管采用绝缘材料,且调节管可转动并向外移动,对线缆与传导块接触位置进行包裹,避免线缆内部铜芯暴露,进一步防止短路现象发生,显著提升端子排使用过程中的安全性和稳定性;
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Figure CN224637437U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of modular terminal block technology, specifically a high-density short-circuit resistant modular terminal block structure. Background Technology
[0002] Terminal blocks, as crucial components in electrical connections, are widely used in power, automation control, and many other fields, playing a key role in connecting and distributing electrical energy and signals. With the increasing integration and high density of electrical equipment, higher demands are being placed on the performance and reliability of terminal blocks. In practical applications, traditional terminal blocks have significant defects in cable connection. After the cables are connected, due to unreasonable terminal block structural design and excessively close cable spacing, short circuits between cables are easily caused by external pressure, insulation wear, etc., which seriously affect the normal operation of the electrical system and may even cause safety accidents. In addition, traditional terminal blocks usually lack effective dust protection measures. In different working environments such as industrial production and outdoor operations, dust, metal powder and other impurities in the air can easily fall into the interior of the terminals. The accumulation of these impurities can not only cause poor terminal contact, but may also lead to short circuits, greatly reducing the service life of the terminal block and the stability of the electrical system, increasing equipment maintenance costs and safety hazards. Utility Model Content
[0003] The purpose of this invention is to provide a high-density, short-circuit-resistant modular terminal block structure to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-density anti-short-circuit modular terminal block structure, including a base and terminals. A terminal is fixed to the top of the base. Slot plates are symmetrically arranged on both sides of the terminal, and the bottom of the slot plates is connected to the base. A protective component is provided at the top of the slot plates. A conductive block is rotatably connected inside the connection socket of the terminal. A sleeve is wrapped around the outer wall of the conductive block. A support ring is fixed to the outer wall of the sleeve. Slot blocks are symmetrically fixed on both sides of the outer wall of the support ring. A connecting pipe is fixed to the top of the sleeve. An adjusting pipe is threadedly connected to the outer wall of the connecting pipe. A protrusion is fixed to the top of the connecting pipe. A fixing rod is threadedly connected to the inside of the protrusion. A fixing component is provided at the top of the side wall of the terminal corresponding to the position of the slot block.
[0005] Preferably, the outer wall of the connecting pipe is threaded, and both the connecting pipe and the regulating pipe are made of insulating material.
[0006] Preferably, the top end of the connecting pipe and the bottom end of the protrusion are provided with threaded holes.
[0007] Preferably, the protective component includes a protective plate, which is inserted into the interior of the groove plate. A dustproof net is fixed to the top of the protective plate, and a fixing pin is inserted into the connection between the groove plate and the protective plate.
[0008] Preferably, the fixing pin is inserted from the outside of the groove plate and extends into the inside of the protective plate to lock and fix the connection between the protective plate and the groove plate.
[0009] Preferably, the fixing member includes a support rod, which is disposed at the top of the groove block, and the side wall of the support rod is connected to the terminal. The support rod has a through hole inside, and a plug rod is inserted into the through hole.
[0010] Preferably, the slot block has a groove inside that matches the insertion rod.
[0011] Compared with the prior art, the beneficial effects of this utility model are: The sleeve covering the outer wall of the conductive block can effectively isolate the conductive block from the outside world, greatly reducing the risk of short circuit; the connecting pipe and the regulating pipe are made of insulating material, and the regulating pipe can rotate and move outward to wrap the contact position between the cable and the conductive block, avoiding the exposure of the copper core inside the cable, further preventing short circuits, and significantly improving the safety and stability of the terminal block during use; The positioning protrusions inside the slot plate cooperate with the positioning grooves on the protective plate to ensure accurate positioning during installation, reduce installation errors, make the protective plate easy and stable to install, improve the overall assembly efficiency of the terminal block, and reduce installation costs. The protective plate is made of transparent polycarbonate material, which has good light transmittance, making it convenient for operators to observe the working status of the terminals in real time and detect potential problems in time. The length of the fixing pin is reasonably designed, which can not only firmly lock the protective plate to the slot plate, but also facilitate the disassembly of the protective plate, providing convenience for the maintenance and repair of the terminal block. The outer wall of the connecting tube is machined with a standard thread, which matches the inner thread of the adjusting tube, allowing for flexible adjustment of the connection length. The connecting tubes of adjacent terminals can be staggered vertically to meet the needs of different cable connection lengths and prevent short circuits caused by cables being too close together. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Detailed view of the connection structure in cross-section; Figure 3 for Figure 2 Detailed view of the connection structure in right cross-section; Figure 4 for Figure 3Enlarged detail of the connection structure of the fastener.
[0013] In the diagram: 1. Base, 2. Terminal, 3. Slot plate, 4. Protective plate, 5. Dustproof net, 6. Fixing pin, 7. Conducting block, 8. Sleeve, 9. Support ring, 10. Slot block, 11. Connecting pipe, 12. Adjusting pipe, 13. Protrusion, 14. Fixing rod, 15. Support rod, 16. Insert rod. Detailed Implementation
[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0015] Please see Figure 1-4 This utility model provides a high-density short-circuit-proof modular terminal block structure technical solution: A high-density short-circuit-proof modular terminal block structure includes a base 1 and terminals 2. Terminals 2 are fixed to the top of the base 1. Slot plates 3 are symmetrically arranged on both sides of the terminals 2, and the bottom end of the slot plates 3 is connected to the base 1. The slot plates 3 have positioning protrusions inside, which cooperate with the positioning grooves on the protective plate 4 to ensure accurate positioning of the protective plate 4 during installation. A protective component is provided at the top of the slot plates 3. A conductive block 7 is rotatably connected inside the connection socket of the terminals 2. The conductive block 7 is also made of high-purity oxygen-free copper and is designed in a cylindrical shape. The outer wall of the conductive block 7 is wrapped with a sleeve 8, which can effectively isolate the conductive block 7 from the outside world and prevent short circuits. A support ring 9 is fixed to the outer wall of the sleeve 8. Grooves 10 are symmetrically fixed on both sides of the outer wall of the support ring 9. A connecting tube 11 is fixed to the top of the sleeve 8. The connecting tube 11 is made of engineering plastic with excellent insulation properties. Its outer wall is machined with standard threads, which cooperate with the inner thread of the adjusting tube 12 to realize the adjustment of the connection length. The adjusting tube 12 is connected to the outer thread of the connecting tube 11. A protrusion 13 is fixed to the top of the connecting tube 11. The threaded hole inside the protrusion 13 is tightly fitted with the fixing rod 14 to firmly fix the wire. The fixing rod 14 is connected to the inner thread of the protrusion 13. A fixing part is provided at the top of the side wall of the terminal 2 corresponding to the position of the groove 10. The outer wall of the connecting tube 11 is machined with threads, and both the connecting tube 11 and the adjusting tube 12 are made of insulating material. Threaded holes are opened at the top of the connecting tube 11 and the bottom of the protrusion 13.
[0016] The protective components include a protective plate 4, which is inserted into the inside of the slot plate 3. The protective plate 4 is made of transparent polycarbonate material, which has good light transmittance, making it easy for operators to observe the working status of the terminal 2. A dustproof net 5 is fixed to the top of the protective plate 4. The dustproof net 5 has good ventilation, which can ensure air circulation inside the terminal block, help heat dissipation, and prevent dust from entering and causing short circuits. A fixing pin 6 is inserted into the connection between the slot plate 3 and the protective plate 4. The length of the fixing pin 6 is sufficient to ensure that the protective plate 4 and the slot plate 3 can be firmly locked after insertion, while not affecting the disassembly of the protective plate 4. The fixing pin 6 is inserted from the outside of the slot plate 3 and extends into the inside of the protective plate 4 to lock and fix the connection between the protective plate 4 and the slot plate 3.
[0017] The fastener includes a support rod 15, which is located at the top of the slot block 10. The side wall of the support rod 15 is connected to the terminal 2. The through hole inside the support rod 15 fits well with the insertion rod 16, ensuring smooth insertion and removal of the insertion rod 16. The support rod 15 has a through hole inside, and the insertion rod 16 is inserted into the through hole. The length of the insertion rod 16 matches the depth of the groove inside the slot block 10. After insertion, the slot block 10 can be firmly fixed, thereby fixing the conductive block 7. The slot block 10 has a groove inside that matches the insertion rod 16.
[0018] Working principle: When using a high-density, short-circuit-proof modular terminal block structure, the user should first insert the protective plate 4 into the groove of the slot plate 3. After insertion, the fixing pin 6 is inserted through the through hole on the front surface of the slot plate 3 into the interior of the protective plate 4 to fix the protective plate 4. Then, when it is necessary to connect the cable to the terminal 2, the user will first rotate the connecting tube 11 to adjust its position. The connecting tubes 11 of adjacent terminals 2 will be staggered vertically. After the connecting tubes 11 are staggered, the user will insert the insertion rod 16 from the top of the support rod 15 into the interior of the slot block 10 to fix the sleeve 8. After fixing, After stripping the cable, the user inserts it into the connecting tube 11. Once inserted, the cable contacts the conductive block 7. Upon contact, the user rotates the fixing rod 14, which rotates and moves downward to fix the cable. After fixing, the user rotates the adjusting tube 12. As the adjusting rod 12 rotates on the outer wall of the connecting tube 11, it moves outward. During this movement, the adjusting tube 12 can wrap around the contact point between the cable and the conductive block 7, preventing the copper core inside the cable from being exposed and causing a short circuit. When the terminal 2 is in normal use, the heat it generates can be dissipated through the dustproof net 5 at the top of the protective plate 4. At the same time, the dustproof net 5 can also effectively reduce the entry of dust.
[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A high-density short-circuit-proof modular terminal strip structure comprising a base (1) and a terminal (2), the top end of the base (1) being fixed with the terminal (2), characterized in that, The terminal (2) is symmetrically provided with slot plates (3) on both sides, and the bottom end of the slot plate (3) is connected to the base (1). The top end of the slot plate (3) is provided with a protective component. The internal connection hole of the terminal (2) is rotatably connected with a conductive block (7). The outer wall of the conductive block (7) is wrapped with a sleeve (8). The outer wall of the sleeve (8) is fixed with a support ring (9). The outer walls of the support ring (9) are symmetrically fixed with slot blocks (10) on both sides. The top end of the sleeve (8) is fixed with a connecting pipe (11). The outer wall of the connecting pipe (11) is threaded with an adjusting pipe (12). The top end of the connecting pipe (11) is fixed with a protrusion (13). The internal thread of the protrusion (13) is threaded with a fixing rod (14). The top end of the side wall of the terminal (2) corresponding to the position of the slot block (10) is provided with a fixing component.
2. The high-density short-circuit-proof modular terminal strip structure according to claim 1, characterized in that The outer wall of the connecting pipe (11) is threaded, and both the connecting pipe (11) and the regulating pipe (12) are made of insulating material.
3. The high-density, short-circuit-proof, modular terminal strip structure of claim 1, wherein, The top end of the connecting pipe (11) and the bottom end of the protrusion (13) are provided with threaded holes.
4. The high-density, short-circuit-proof, modular terminal strip structure of claim 1, wherein, The protective component includes a protective plate (4), which is inserted into the inside of the groove plate (3). A dustproof net (5) is fixed to the top of the protective plate (4), and a fixing pin (6) is inserted into the connection between the groove plate (3) and the protective plate (4).
5. A high-density short-circuit-protected modular terminal block structure according to claim 4, characterized in that, The fixing pin (6) is inserted from the outside of the groove plate (3) and extends into the inside of the protective plate (4) to fix the connection between the protective plate (4) and the groove plate (3).
6. The high-density, short-circuit-proof, modular terminal strip structure of claim 1, wherein, The fastener includes a support rod (15), which is located at the top of the slot block (10). The side wall of the support rod (15) is connected to the terminal (2). A through hole is provided inside the support rod (15), and a plug rod (16) is inserted into the through hole.
7. The high-density, short-circuit-proof, modular terminal strip structure of claim 1, wherein, The slot (10) has a groove inside that matches the insert (16).