Distribution box based on slide rail hook type terminal adjusting structure

Abstract

The utility model provides a distribution box based on slide rail hook formula terminal adjusting structure, including distribution box casing, the side of distribution box casing is provided with main cable threading let -by -one hole, is provided with incoming line stress release insulating washer in main cable threading let -by -one hole, the inside of distribution box casing is provided with main line voltage -sharing formula distribution wiring terminal, main line voltage -sharing formula distribution wiring terminal is connected with distribution branch terminal through distribution branch cable, and distribution branch terminal is slidably arranged on branch terminal adjusting sliding assembly, the utility model discloses a branch terminal adjusting sliding assembly is arranged, realizes branch terminal position flexible adjustment, adapts different length branch cable, and the optimization box body wiring space, collocates circuit breaker sliding card seat, can according to the number of branch, equipment specification free adjustment circuit breaker installation position, can effectively avoid cable cross -winding, reduces the construction cost of branch adjustment of later period, adapts diversified distribution scheme, can be widely applied to industrial, commercial and civilian distribution scene.

Description

Technical Field

[0001] This utility model relates to the field of distribution boxes based on slide rail hook terminal adjustment structure, and more specifically, to distribution boxes based on slide rail hook terminal adjustment structure. Background Technology

[0002] In low-voltage power distribution systems, distribution boxes, as core equipment for power distribution, control, and protection, are widely used in industrial plants, commercial buildings, and residential settings. Their structural rationality directly affects power supply stability, operation and maintenance efficiency, and space utilization.

[0003] Application number CN201420395102.3 discloses an outdoor distribution box, including a box body, a door, and a cover. The door is connected to the box body. The upper end of the box body is connected to one end of a support column, and the other end of the support column is connected to the cover. A heat sink is provided between the cover and the box body. The heat sink is connected to the support column via a crossbar, and the heat sink is connected to the top of the box body via a superconducting heat pipe. By conducting the temperature inside the box body to the heat sink via the superconducting heat pipe, the heat sink dissipates the heat. Due to the excellent thermal conductivity of the superconducting heat pipe, the problem of excessive temperature inside the box body is effectively solved, ensuring the normal operation of the internal electrical equipment.

[0004] However, existing distribution boxes have some shortcomings that need improvement: Firstly, most existing distribution box taps are fixed in place, with the installation position predetermined and unadjustable. During actual wiring, the cable lengths of different branches vary. Fixed-position terminals easily lead to some cables being too long and requiring redundant coiling, while others are too short and require additional connections. This not only wastes cable materials but also easily causes cables to become tangled inside the box, increasing the difficulty of troubleshooting later. Furthermore, densely tangled cables can affect ventilation and heat dissipation inside the box, increasing the risk of overheating of electrical components.

[0005] Secondly, the main line wiring conductors in existing distribution boxes are mostly single-piece independent clamping structures, relying solely on a single pin for fastening and limiting, lacking auxiliary constraint structures. Under conditions such as wiring tightening operations, long-term energized operation of equipment, and slight cable vibration, the conductors are prone to uneven force on one side and overall skewness, resulting in incomplete contact between the conductor and the cable conductor, causing loose connections and reducing the stability of the wiring crimp.

[0006] Furthermore, existing distribution boxes lack dedicated arc protection structures in their tap-connector wiring areas. During power line switching, load fluctuations, or minor line faults, electrical sparks and arcs are easily generated at the terminal locations. These arcs can spread uncontrollably, easily burning surrounding insulation components, line sheaths, and adjacent conductive terminals. This not only damages components and shortens equipment lifespan, but also exposes the conductive contact surfaces of the existing distribution terminals completely inside the box. During operation, external moisture, dust, and humid air can easily enter the box through ventilation holes and assembly gaps, directly corroding the conductive contact surfaces. Long-term exposure of metal conductive contact surfaces to a complex environment easily leads to oxidation, corrosion, and scale buildup. Therefore, we have made improvements by proposing a distribution box based on a sliding rail hook-type terminal adjustment structure. Utility Model Content

[0007] The purpose of this utility model is to address the problems raised in the existing background technology. To achieve the above-mentioned purpose, this utility model provides the following technical solution: a distribution box based on a sliding rail hook-type terminal adjustment structure, including a distribution box shell, a main cable passage clearance hole provided on the side of the distribution box shell, an inlet stress relief insulating gasket provided in the main cable passage clearance hole, a main line equalizing distribution terminal provided inside the distribution box shell, a main line connection voltage conductive piece provided at the connection point of the main line equalizing distribution terminal, pressure plate clamps provided on both sides of the main line connection voltage conductive piece, the main line equalizing distribution terminal connected to the distribution tapping terminal through a distribution tapping cable, a tapping cable arc suppression guide pressure relief lip provided at the connection point between the distribution tapping terminal and the distribution tapping cable, the distribution tapping terminal slidably mounted on the tapping terminal adjustment sliding assembly, and a conductive contact surface anti-oxidation isolation cover provided at the front of the main line equalizing distribution terminal.

[0008] As a preferred technical solution of this utility model, the main line wiring voltage plate is fastened by a crimping plate anti-loosening locking pin.

[0009] As a preferred technical solution of this utility model, the power distribution tap terminal is provided with a tap hole.

[0010] As a preferred technical solution of this utility model, the tap terminal adjustment sliding assembly includes a terminal sliding bearing sliding plate, a sliding plate locking hook, and a terminal adjustment slide rail.

[0011] As a preferred technical solution of this utility model, the power distribution tap terminal is connected to the terminal sliding bearing sliding plate, and the terminal sliding bearing sliding plate is slidably mounted on the terminal adjusting slide rail.

[0012] As a preferred technical solution of this utility model, the upper and lower sides of the terminal sliding bearing sliding plate are provided with sliding plate locking hooks.

[0013] As a preferred technical solution of this utility model, the terminal adjustment slide rail is locked inside the sliding plate locking hook.

[0014] As a preferred technical solution of this utility model, it also includes a circuit breaker sliding bracket, which is slidably disposed on a bracket sliding guide rail.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: The insulating gasket at the inlet of this utility model can effectively isolate the cable from the metal structure of the box, avoiding the risk of leakage; at the main line connection, the contact pressure between the cable and the conductive parts is increased by the crimping fastening structure, reducing the contact resistance and reducing the heat loss during power transmission, thus avoiding safety hazards such as short circuits and overheating from the source and ensuring the stability and reliability of the power supply system.

[0016] The tap changer of this utility model can be freely adjusted in position via a sliding component, which can adapt to branch cables of different lengths, optimize the wiring space inside the box, and avoid cable crossing and tangling; the sliding design of the circuit breaker bracket allows for flexible adjustment of the circuit breaker installation position according to the number of branches and equipment specifications, adapting to diverse power distribution schemes, and no changes to the overall structure are required when adding or adjusting branches in the future.

[0017] The main line and tap cables of this utility model adopt modular terminal connection, making wiring and disconnection operations simple and efficient; the sliding structure allows the position adjustment of tap terminals and circuit breakers without disassembling fixed parts, which greatly reduces the difficulty of later maintenance and capacity expansion, shortens operation and maintenance time, and improves work efficiency.

[0018] This invention adds clamping plates to both sides of the main line wiring conductor, which provides bidirectional constraint on the conductor. During the wiring tightening process, it evens out the pressure received, suppresses skew deformation of the conductor, and ensures full contact between the conductor and the cable conductor, effectively improving the contact reliability of the crimping part. This invention also features an arc-suppressing and pressure-relief vent for the tap changer, which guides and constrains the arc generated at the tap changer terminal, limiting its disorderly outward spread. The anti-oxidation isolation cover for the conductive contact surface provides physical isolation protection for the conductive joint area of ​​the main line equalizing distribution terminal, reducing the direct intrusion of air, moisture, and dust into the conductive contact surface inside the enclosure, slowing down oxidation and corrosion of the metal contact surface, and maintaining good conductivity of the conductive parts. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the internal structure of the present invention. Figure 2 A schematic diagram of the main line wiring voltage conductor structure provided by this utility model; Figure 3 This is a schematic diagram of the power distribution tap changer structure provided by this utility model; Figure 4 A schematic diagram of the circuit breaker sliding bracket structure provided by this utility model; Figure 5 A schematic diagram of the terminal adjustment slide rail structure provided by this utility model; Figure 6 A schematic diagram of the sliding plate locking hook structure provided by this utility model; Figure 7 A schematic diagram of the main line wiring voltage conductor structure provided by this utility model.

[0020] The image shows: 1. Distribution box housing; 2. Main cable pass-through clearance hole; 3. Inlet stress relief insulating gasket; 4. Main line equalizing distribution terminal block; 401. Main line connection voltage conductive plate; 4011. Pressure plate clamp; 402. Pressure plate anti-loosening locking fastening pin; 5. Distribution tap cable; 6. Distribution tap terminal; 601. Tap hole; 7. Tap terminal adjustment sliding assembly; 701. Terminal sliding bearing sliding plate; 7011. Sliding plate locking hook; 702. Terminal adjustment slide rail; 8. Circuit breaker sliding bracket; 9. Bracket sliding guide rail; 10. Tap cable arc suppression guide pressure relief vent; 11. Conductive contact surface anti-oxidation isolation cover. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0022] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely illustrates some embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model. It should be noted that, in the absence of conflict, the embodiments and features and technical solutions in the embodiments of this utility model can be combined with each other. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] Example 1: A distribution box based on a sliding rail hook-type terminal adjustment structure includes a distribution box housing 1. A main cable pass-through clearance hole 2 is provided on the side of the distribution box housing 1. An inlet stress-relieving insulating gasket 3 is provided inside the main cable pass-through clearance hole 2. A main line equalizing voltage distribution terminal 4 is provided inside the distribution box housing 1. A main line connection voltage conductive piece 401 is provided at the connection point of the main line equalizing voltage distribution terminal 4. Pressure plate clamps 4011 are provided on both sides of the main line connection voltage conductive piece 401. The main line equalizing voltage distribution terminal 4 is connected to a distribution tap-connector 6 via a distribution tap-connector cable 5. A tap-connector cable arc-suppressing guide pressure relief vent 10 is provided at the connection point between the distribution tap-connector 6 and the distribution tap-connector cable 5. The distribution tap-connector 6 is slidably mounted on a tap-connector adjustment sliding assembly 7. A conductive contact surface anti-oxidation isolation cover 11 is provided at the front of the main line equalizing voltage distribution terminal 4.

[0024] The main line connection voltage conductor 401 is fastened by the crimping plate anti-loosening locking pin 402. The distribution tap terminal 6 is provided with a tap hole 601. The tap terminal adjustment sliding assembly 7 includes a terminal sliding bearing sliding plate 701, a sliding plate locking hook 7011, and a terminal adjustment slide rail 702.

[0025] The distribution tap changer 6 is connected to the terminal sliding support plate 701, which is slidably mounted on the terminal adjusting slide rail 702. Sliding plate locking hooks 7011 are provided on the upper and lower sides of the terminal sliding support plate 701. The terminal adjusting slide rail 702 is engaged with the inner side of the sliding plate locking hooks 7011. The circuit breaker sliding bracket 8 is slidably mounted on the bracket sliding guide rail 9.

[0026] The working principle of the distribution box based on the sliding rail hook terminal adjustment structure: the external main cable enters the box body through the main cable pass-through hole 2 on the side of the distribution box housing 1. The stress-relieving insulating gasket 3 of the incoming line is tightly attached to the main cable and the inner wall of the incoming line hole, which not only plays a role in sealing and dust prevention, but also avoids the risk of leakage caused by direct contact between the cable and the metal housing 1, thus ensuring electrical safety during the incoming line stage.

[0027] The main cable entering the enclosure is connected to the main line equalizing power distribution terminal 4. The main line connection voltage conductive piece 401 is tightly attached to the main cable core. The locking pin 402 of the crimping piece is gradually tightened to increase the contact pressure between the main cable and the voltage conductive piece, reduce the contact resistance, and ensure that the main line power is stably conducted to the main line equalizing power distribution terminal 4.

[0028] The main line equalizing power distribution terminal 4 distributes power to each power distribution terminal 6 through the power distribution tap cable 5. The power is connected to the cable of the subsequent power branch through the tap hole 601 on the power distribution terminal 6, thus completing the power distribution from the main line to the branch.

[0029] The power distribution tap terminal 6 is fixedly connected to the terminal sliding support sliding plate 701. The terminal sliding support sliding plate 701 is engaged with the inner side of the terminal adjustment slide rail 702 by the sliding plate locking hooks 7011 on the upper and lower sides. When sliding along the slide rail, the hooks can prevent the sliding plate from disengaging from the slide rail, so as to realize the flexible adjustment of the position of the power distribution tap terminal 6, adapt to branch cables of different lengths, and optimize the wiring space inside the box.

[0030] The circuit breaker sliding bracket 8 can slide freely along the bracket sliding rail 9, providing an adjustable installation position for the circuit breaker. This facilitates adjusting the circuit breaker position according to the number of branches and layout requirements, adapting to different power distribution schemes, and improving the adaptability and expandability of the internal structure of the enclosure.

[0031] The inner hole of the stress-relieving insulating gasket 3 is fitted with the outer sheath of the cable, and the outer edge is clamped to the inner wall of the cable threading clearance hole 2 for double-layer sealing; the main line equalizing voltage distribution terminal 4, together with the main line connection voltage conductive piece 401 and the double-sided pressure plate clamp 4011, has a bidirectional constraint structure: when the pressure plate anti-loosening locking fastening pin 402 is locked, the pressure plate clamp 4011 on both sides synchronously limits the voltage conductive piece 401 to balance the clamping force.

[0032] The tap cable arc suppression and pressure relief eaves 10 are integrally formed on the upper end of the power distribution tap terminal 6, forming a downward-wrapping arc-shaped eaves that directly faces the tap hole 601 wiring area. The arc-shaped eaves form a physical shielding barrier, preventing the electric arc from splashing to the sides and adjacent conductive parts, and confining the electric arc to the narrow space inside the eaves. The conductive contact surface anti-oxidation isolation cover 11 is a fully enclosed transparent flame-retardant insulating cover that is fastened to the front of the main line equalizing power distribution terminal 4, completely enclosing the conductive area where the main line wiring voltage conductive piece 401 and the cable core are joined. The external main cable enters the box through the main cable pass-through hole 2 on the side of the distribution box housing 1. The inlet stress relief insulating gasket 3 is tightly fitted to the main cable and the inner wall of the inlet hole. The main cable entering the box is connected to the main line equalizing distribution terminal 4. The main line connection voltage plate 401 is equipped with pressure plate clamps 4011 on both sides to form a bidirectional limiting constraint. When the pressure plate anti-loosening locking pin 402 is tightened, the clamping force is evenly distributed throughout the wire core, and there will be no problem of voltage plate skew or local poor contact. The internal equalizing current distribution base of the terminal evenly distributes the main line current to each distribution branch cable 5, avoiding local current concentration and heat generation. The front of the terminal is fastened with an anti-oxidation isolation cover 11 for the conductive contact surface to prevent oxidation and corrosion of the metal conductive joint surface.

[0033] The main line equalizing power distribution terminal 4 distributes power to each power distribution terminal 6 through the power distribution tap cable 5. The power is connected to the branch cable through the tap hole 601 on the power distribution tap terminal 6. The tap cable arc suppression guide pressure relief 10 is integrally formed at the connection port of the power distribution tap terminal 6 to avoid the electric arc burning the cable insulation and reduce the risk of short circuit and insulation damage.

[0034] The distribution tap changer 6 is fixedly connected to the terminal sliding support sliding plate 701. The terminal sliding support sliding plate 701 is engaged with the inner side of the terminal adjusting slide rail 702 by the sliding plate locking hooks 7011 on the upper and lower sides, and slides freely along the slide rail. The hooks prevent the sliding plate from derailing, realizing the position adjustment of the distribution tap changer 6 to adapt to branch cables of different lengths. The circuit breaker sliding bracket 8 can slide freely along the bracket sliding guide rail 9, providing an adjustable installation position for the circuit breaker, and the circuit breaker layout position can be adjusted according to the number of branches and equipment specifications.

[0035] The working process of the distribution box based on the sliding rail hook-type terminal adjustment structure is as follows: The outer insulation of the external power supply main cable is stripped to expose the wire core. The cable then passes through the main cable pass-through clearance hole 2 on the side of the distribution box housing 1. The inlet stress-relieving insulating gasket 3 is inserted simultaneously with the cable to fill the gap between the cable and the inlet hole, completing the inlet sealing protection. Subsequently, the main cable core is crimped between the main line connection conductive plates 401 of the main line equalizing distribution terminal 4. The anti-loosening locking pin 402 of the crimping plate is tightened, and pressure ensures a tight fit between the conductive plates and the wire core, guaranteeing a stable electrical connection between the main cable and the main line equalizing distribution terminal 4.

[0036] Based on the number of power branches, one end of the distribution tap cable 5 is crimped to the tap end of the main line equalizing distribution terminal 4, and the other end is fixedly connected to the distribution tap terminal 6. Then, the distribution tap terminal 6 is assembled with the terminal sliding support plate 701, and engaged on the terminal adjusting slide rail 702 by the sliding plate locking hook 7011. It is then slid along the slide rail to a suitable position, reserving operating space for subsequent branch wiring. Simultaneously, the circuit breaker is installed on the circuit breaker sliding bracket 8, and the bracket is pushed along the bracket sliding guide rail 9 to adjust to the corresponding matching position of the distribution tap terminal 6, completing the initial layout.

[0037] External electrical energy is transmitted through the main cable to the main line equalizing distribution terminal 4. After stable conduction by the main line connection voltage conductor 401, the energy is distributed to each distribution tap cable 5, and then through the tap hole 601 of the distribution tap terminal 6 to the connected branch circuit breaker, ultimately distributing to each electrical device to achieve synchronous power supply to multiple loads. The incoming line stress-relieving insulating gasket 3 continuously isolates the main cable from the metal casing 1, preventing leakage hazards. The main line connection voltage conductor 401 maintains low-resistance contact through the pressure of the fastening pin, reducing heat loss during power transmission and ensuring the safety and efficiency of power distribution.

[0038] When adding a new power branch or adjusting the branch layout, the terminal sliding bearing sliding plate 701 can be directly pushed to make the power distribution tap 6 slide along the terminal adjustment slide rail 702. The sliding plate locking hook 7011 is always engaged with the slide rail to prevent it from falling off during the sliding process. After adjusting to the appropriate position, the branch cable can be reconnected without changing the main line wiring.

[0039] If a circuit breaker of a different specification is replaced or the branch sequence is adjusted, the circuit breaker sliding bracket 8 can be moved along the bracket sliding guide rail 9 to adjust the circuit breaker to the position of the corresponding power distribution tap 6, adapting to the new branch wiring requirements and improving the flexibility of the internal layout of the enclosure and the efficiency of operation and maintenance.

[0040] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the utility model, are covered within the scope of the claims of the present utility model.

Claims

1. A distribution box based on a slide rail hook-type terminal adjustment structure, comprising a distribution box housing (1), characterized in that, The distribution box housing (1) has a main cable pass-through clearance hole (2) on its side. A stress-relieving insulating gasket (3) is provided inside the main cable pass-through clearance hole (2). The distribution box housing (1) has a main line equalizing distribution terminal (4). A main line connection voltage conductor (401) is provided at the connection point of the main line equalizing distribution terminal (4). Pressure clamps (4011) are provided on both sides of the main line connection voltage conductor (401). The main line equalizing power distribution terminal (4) is connected to the power distribution tap terminal (6) through the power distribution tap cable (5). The connection between the power distribution tap terminal (6) and the power distribution tap cable (5) is provided with a tap cable arc suppression guide pressure relief lip (10). The power distribution tap terminal (6) is slidably mounted on the tap terminal adjustment sliding assembly (7). The front of the main line equalizing power distribution terminal (4) is provided with a conductive contact surface anti-oxidation isolation cover (11).

2. The distribution box based on the slide rail hook type terminal adjustment structure according to claim 1, characterized in that, The main line wiring voltage plate (401) is fastened by the crimping plate anti-loosening locking pin (402).

3. The distribution box based on the slide rail hook type terminal adjustment structure according to claim 2, characterized in that, The power distribution tap terminal (6) is provided with a tap hole (601).

4. The distribution box based on the slide rail hook type terminal adjustment structure according to claim 3, characterized in that, The tap terminal adjustment sliding assembly (7) includes a terminal sliding bearing sliding plate (701), a sliding plate locking hook (7011), and a terminal adjustment slide rail (702).

5. The distribution box based on the slide rail hook type terminal adjustment structure according to claim 4, characterized in that, The power distribution tap terminal (6) is connected to the terminal sliding bearing sliding plate (701), and the terminal sliding bearing sliding plate (701) is slidably mounted on the terminal adjusting slide rail (702).

6. The distribution box based on the slide rail hook type terminal adjustment structure according to claim 5, characterized in that, The terminal sliding bearing sliding plate (701) is provided with sliding plate locking hooks (7011) on the upper and lower sides.

7. The distribution box based on the slide rail hook type terminal adjustment structure according to claim 6, characterized in that, The terminal adjustment slide rail (702) is locked inside the sliding plate locking hook (7011).

8. The distribution box based on the slide rail hook type terminal adjustment structure according to claim 7, characterized in that, It also includes a circuit breaker sliding bracket (8), which is slidably mounted on the bracket sliding guide rail (9).

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