A switchboard terminal fixing device

Abstract

The application belongs to the technical field of terminal fixing, and particularly relates to a power distribution cabinet wiring terminal fixing device, which comprises a mounting plate, terminal tracks, a clamping mechanism, a cooling mechanism and an anti-skid mechanism. A plurality of terminal tracks are arranged on the side walls of the mounting plate. The clamping mechanism is arranged on the terminal tracks. The cooling mechanism comprises a ventilation assembly and an exhaust assembly. The ventilation assembly is arranged on the inner wall of the terminal track. The exhaust assembly is arranged on the side wall of the ventilation assembly. The power distribution cabinet wiring terminal fixing device can realize air circulation and heat dissipation of the terminal table area and can secondarily reinforce the assembled terminal table.

Description

Technical Field

[0001] This invention belongs to the field of terminal fixing technology, specifically referring to a terminal fixing device for power distribution cabinets. Background Technology

[0002] Reactors and contactors in distribution cabinets continuously vibrate during operation, subjecting terminal blocks mounted on DIN standard rails to prolonged vibration loads. When terminal blocks are densely packed, carry large operating currents, or are installed in enclosed distribution cabinets containing built-in reactors or transformers, heat easily accumulates in the terminal mounting area. High temperatures accelerate the creep of the plastic clips on the DIN rail mounting, reducing the clip holding force and further amplifying the risk of terminal block slippage under vibration conditions. If the terminal block shifts, the alternating tension of the cable continues to act on the wiring screws, easily leading to loose connections, contact overheating, and in severe cases, circuit faults.

[0003] The existing terminal block fixing devices for power distribution cabinets have the following problems: The terminal block area lacks air circulation and heat dissipation capabilities, causing heat to accumulate continuously. The high temperature exacerbates the displacement of the terminal block under vibration, pulling on the wiring cables. The lack of a secondary reinforcement structure for the terminal block, coupled with the high temperature and vibration conditions of the power distribution cabinet, and the absence of a compensating locking structure after the clamping force of the buckle weakens, significantly increases the risk of terminal slippage. Therefore, existing products cannot meet the long-term stable operation requirements of wiring terminals in high-power, enclosed distribution cabinets. Summary of the Invention

[0004] In view of the above situation and to overcome the shortcomings of the existing technology, this solution provides a distribution cabinet terminal fixing device that can realize air circulation heat dissipation in the terminal block area and at the same time provide secondary reinforcement to the assembled terminal block.

[0005] The technical solution adopted in this solution is as follows: This solution proposes a terminal fixing device for a power distribution cabinet, including a mounting plate, terminal rails, a locking mechanism, a cooling mechanism, and an anti-slip mechanism. Multiple sets of the terminal rails are arranged on the side wall of the mounting plate. The locking mechanism is arranged on the terminal rails. The cooling mechanism includes a ventilation component and an exhaust component. The ventilation component is arranged on the inner wall of the terminal rails. The exhaust component is arranged on the side wall of the ventilation component. The anti-slip mechanism includes a wind-driven component and a magnetic separation component. The wind-driven component is arranged on the ventilation component, and the magnetic separation component is arranged on the wind-driven component.

[0006] As a further preferred embodiment of the present invention, the locking mechanism includes a locking groove, an anti-slip plate, and locking springs. The locking grooves are respectively provided on the upper and lower walls of the terminal track, and the locking grooves are open at both ends. The anti-slip plate is slidably disposed on the inner wall of the locking groove, and multiple sets of locking springs are disposed between the anti-slip plate and the locking groove.

[0007] Preferably, the ventilation assembly includes a ventilation seat, a heat exchange copper tube, an air inlet slot, and an air inlet pipe. The ventilation seats are symmetrically arranged at both ends of the terminal rail, the heat exchange copper tubes are arranged between the ventilation seats, the air inlet slot is arranged at one end of the terminal rail near the mounting plate, and the air inlet slot is through-connected. Multiple sets of the air inlet pipes are connected between the air inlet slot and the heat exchange copper tube, and the air inlet pipes are connected to the air inlet slot. The exhaust assembly includes an exhaust duct and an exhaust pipe. The exhaust duct is located on the side of the ventilation seat away from the heat exchange copper pipe and is connected to the heat exchange copper pipe. The exhaust pipe is located on the side of the exhaust duct away from the ventilation seat.

[0008] Specifically, the wind drive assembly includes a closing groove, a closing plate, and a closing spring. The closing groove is located on the inner wall of the ventilation seat and is connected between the heat exchange copper tube and the exhaust duct. The closing plate is attached to the side wall of the exhaust duct. The closing spring is located between the closing plate and the inner wall of the closing groove and is in a shortened state. The magnetic separation component includes a separating magnetic column and a squeezing magnetic column. The separating magnetic column is located on the side of the closing plate near the closing groove, and the squeezing magnetic column is located on the bottom wall of the anti-slip plate through the ventilation seat. The separating magnetic column and the squeezing magnetic column are arranged with opposite poles.

[0009] The beneficial effects achieved by this solution using the above structure are as follows: Compared with existing technologies, this solution combines a locking mechanism, a cooling mechanism, and an anti-slip mechanism. This design allows the heat dissipation airflow to pass through the terminal track and terminal block area before exiting the distribution cabinet, continuously carrying away the heat accumulated in the terminals and suppressing high-temperature creep of the plastic clips. The exhaust air generates negative pressure, which drives the closing plate to move, separating the magnetic column and the squeezing magnetic column to release the magnetic attraction constraint. The locking spring releases its elasticity to push the anti-slip plate to clamp the terminal block, increasing the static friction between the anti-slip plate and the terminal mounting clips. This effectively reduces the probability of terminal block slippage under vibration conditions and improves the terminal assembly firmness and wiring safety. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this solution; Figure 2 This is a schematic diagram of the exploded structure of this scheme; Figure 3 This is the main view of this solution; Figure 4 This is a top view of the plan; Figure 5 for Figure 4 Sectional view of AA section; Figure 6 for Figure 3 Sectional view of BB section; Figure 7 for Figure 3 A sectional view of the CC portion; Figure 8 for Figure 3 Sectional view of the DD portion; Figure 9 for Figure 7 Enlarged structural view of section I; Figure 10 for Figure 8 Enlarged structural view of Part II; Figure 11 for Figure 6 Enlarged structural view of Part III; Figure 12 for Figure 5 Enlarged structural view of section I and V; Figure 13 for Figure 5 Enlarged structural view of part V.

[0011] Among them, 1. Mounting plate, 2. Terminal rail, 3. Engaging mechanism, 4. Engaging groove, 5. Anti-slip plate, 6. Engaging spring, 7. Cooling mechanism, 8. Ventilation assembly, 9. Ventilation seat, 10. Heat exchange copper tube, 11. Air inlet slot, 12. Air inlet pipe, 13. Exhaust assembly, 14. Exhaust duct, 15. Exhaust pipe, 16. Anti-slip mechanism, 17. Wind drive assembly, 18. Closing groove, 19. Closing plate, 20. Closing spring, 21. Separating magnetic assembly, 22. Separating magnetic column, 23. Extruding magnetic column.

[0012] The accompanying drawings are provided to further understand the present solution and form part of the specification. They are used together with the embodiments of the present solution to explain the present solution and do not constitute a limitation thereof. Detailed Implementation

[0013] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this solution, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this solution without creative effort are within the scope of protection of this solution.

[0014] In the description of this solution, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", and "outer" 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 solution 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 limitations on this solution.

[0015] like Figures 1-13As shown, the present solution proposes a terminal fixing device for a distribution cabinet, including a mounting plate 1, terminal rails 2, a locking mechanism 3, a cooling mechanism 7, and an anti-slip mechanism 16. Multiple sets of the terminal rails 2 are disposed on the side wall of the mounting plate 1. The locking mechanism 3 is disposed on the terminal rails 2. The cooling mechanism 7 includes a ventilation component 8 and an exhaust component 13. The ventilation component 8 is disposed on the inner wall of the terminal rails 2, and the exhaust component 13 is disposed on the side wall of the ventilation component 8. The anti-slip mechanism 16 includes a wind-driven component 17 and a magnetic separation component 21. The wind-driven component 17 is disposed on the ventilation component 8, and the magnetic separation component 21 is disposed on the wind-driven component 17.

[0016] The locking mechanism 3 includes a locking groove 4, an anti-slip plate 5, and a locking spring 6. The locking groove 4 is respectively provided on the upper wall and the bottom wall of the terminal rail 2, and the locking groove 4 is open at both ends. The anti-slip plate 5 is slidably provided on the inner wall of the locking groove 4, and multiple sets of the locking spring 6 are provided between the anti-slip plate 5 and the locking groove 4.

[0017] The ventilation assembly 8 includes a ventilation seat 9, a heat exchange copper tube 10, an air inlet slot 11, and an air inlet pipe 12. The ventilation seat 9 is symmetrically arranged at both ends of the terminal rail 2. The heat exchange copper tube 10 is arranged between the ventilation seats 9. The air inlet slot 11 is arranged at one end of the terminal rail 2 near the mounting plate 1, and the air inlet slot 11 is through. Multiple sets of the air inlet pipes 12 are connected between the air inlet slot 11 and the heat exchange copper tube 10, and the air inlet pipes 12 are connected to the air inlet slot 11. The exhaust assembly 13 includes an exhaust duct 14 and an exhaust pipe 15. The exhaust duct 14 is disposed through the ventilation seat 9 on the side away from the heat exchange copper pipe 10 and is connected to the heat exchange copper pipe 10. The exhaust pipe 15 is connected to the side of the exhaust duct 14 away from the ventilation seat 9.

[0018] The wind drive assembly 17 includes a closing groove 18, a closing plate 19, and a closing spring 20. The closing groove 18 is located on the inner wall of the ventilation seat 9 and is connected between the heat exchange copper tube 10 and the exhaust duct 14. The closing plate 19 is attached to the side wall of the exhaust duct 14. The closing spring 20 is located between the closing plate 19 and the inner wall of the closing groove 18 and is in a shortened state. The magnetic separation component 21 includes a separating magnetic column 22 and a pressing magnetic column 23. The separating magnetic column 22 is located on the side of the closing plate 19 near the closing groove 18. The pressing magnetic column 23 passes through the ventilation seat 9 and is located on the bottom wall of the anti-slip plate 5. The separating magnetic column 22 and the pressing magnetic column 23 are arranged with opposite poles.

[0019] In practical use, the mounting plate 1 is fixed to the inner side wall of the distribution cabinet, the terminal block is clipped onto the terminal rail 2, and the upper and lower outer walls of the terminal block are respectively attached to the anti-slip plates 5 on the upper and lower sides of the terminal rail 2; under the condition of no forced ventilation, the separation magnetic column 22 adsorbs and squeezes the magnetic column 23, restricting the anti-slip plate 5 from extending outward, and the locking spring 6 keeps it in a compressed state; When the built-in reactors and transformers in the distribution cabinet are in operation for a long time, the terminal blocks carry a large current and continuously generate heat. The plastic clips are subjected to the dual effects of high-temperature creep and continuous vibration, resulting in a decrease in clamping friction and a risk of lateral slippage of the terminal blocks. By sealing and connecting the outer end of the exhaust pipe 15 to the external exhaust and heat dissipation pipe of the distribution cabinet, after the external exhaust equipment is started, the air in the distribution cabinet flows into the heat exchange copper pipe 10 through the air inlet slot 11 and air inlet pipe 12 under the action of negative pressure. The heat exchange copper pipe 10 is in close contact with the terminal track 2, continuously conducting the heat accumulated in the terminal block area, realizing local cooling of the terminals and inhibiting the creep of the plastic clips. The exhaust system continuously draws airflow to create a negative pressure inside the exhaust duct 14. The negative pressure suction overcomes the elastic force of the closing spring 20 and pulls the closing plate 19 to move inward toward the closing groove 18, thus fully opening the airflow channel between the heat exchange copper tube 10 and the exhaust duct 14. After the hot air inside the cabinet completes heat exchange through the heat exchange copper tube, it is discharged from the distribution cabinet in sequence through the exhaust duct 14, the exhaust pipe 15, and the external heat dissipation pipe, forming an independent heat dissipation air duct that runs through the terminal installation area. This prevents heat accumulation from causing cable pulling and loosening of wiring, and ensures the safe operation of the terminal wiring. During the displacement of the closing plate 19, the separating magnetic column 22 moves away from the pressing magnetic column 23, and the magnetic attraction constraint between the two is released. The engaging spring 6 releases its compression force, pushing the anti-slip plate 5 to slide along the engaging groove 4 towards the center of the track, clamping the terminal block housing buckle in both directions, increasing the frictional resistance between the anti-slip plate and the terminal buckle, limiting the terminal block from shifting under vibration, and improving the long-term assembly stability of the terminals. After the equipment stops and the external exhaust duct stops working, the closing spring 20 rebounds and pushes the closing plate 19 to reset, the separating magnetic column 22 re-attracts the pressing magnetic column 23, and the anti-slip plate 5 retracts to reset, facilitating the later disassembly and replacement of the terminal block; repeating the above process allows the device to be used cyclically.

[0020] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0021] The present solution and its implementation methods have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present solution; the actual structure is not limited to this. In conclusion, if a person skilled in the art, inspired by this description, designs a similar structure and embodiment without departing from the inventive intent of this solution, such design should fall within the protection scope of this solution.

Claims

1. A terminal fixing device for a power distribution cabinet, comprising a mounting plate and a terminal rail, characterized in that: It also includes a locking mechanism, a cooling mechanism, and an anti-slip mechanism. Multiple sets of the terminal rails are provided on the side wall of the mounting plate. The locking mechanism is provided on the terminal rails. The cooling mechanism includes a ventilation component and an exhaust component. The ventilation component is provided on the inner wall of the terminal rails. The exhaust component is provided on the side wall of the ventilation component. The anti-slip mechanism includes a wind-driven component and a magnetic separation component. The wind-driven component is provided on the ventilation component. The magnetic separation component is provided on the wind-driven component. The ventilation assembly includes a ventilation base and a heat exchange copper tube; The exhaust assembly includes an exhaust duct; The wind drive assembly includes a closing slot, a closing plate, and a closing spring; The closing groove is located on the inner wall of the ventilation seat, and the closing groove is connected between the heat exchange copper tube and the exhaust duct. The closing plate is attached to the side wall of the exhaust duct, and the closing spring is located between the closing plate and the inner wall of the closing groove. The locking mechanism includes an anti-slip plate; The magnetic separation assembly includes a separating magnetic column and a squeezing magnetic column; The separating magnetic column is located on the side of the closing plate near the closing groove, and the squeezing magnetic column is located on the bottom wall of the anti-slip plate through the ventilation seat.

2. The terminal fixing device for a power distribution cabinet according to claim 1, characterized in that: The engaging mechanism also includes engaging grooves and engaging springs. The engaging grooves are respectively provided on the upper wall and the bottom wall of the terminal track, and the engaging grooves are open at both ends. The anti-slip plate is slidably provided on the inner wall of the engaging groove, and multiple sets of engaging springs are provided between the anti-slip plate and the engaging groove.

3. The terminal fixing device for a power distribution cabinet according to claim 1, characterized in that: The ventilation assembly includes an air inlet slot and an air inlet pipe. The ventilation seats are symmetrically arranged at both ends of the terminal rail. The heat exchange copper pipe is arranged between the ventilation seats. The air inlet slot is located at one end of the terminal rail near the mounting plate. Multiple sets of the air inlet pipes are connected and arranged between the air inlet slot and the heat exchange copper pipe.

4. The terminal fixing device for a power distribution cabinet according to claim 1, characterized in that: The exhaust assembly also includes an exhaust duct, which is disposed through the ventilation seat on the side away from the heat exchange copper tube and is connected to the heat exchange copper tube. The exhaust duct is also disposed on the side of the exhaust duct away from the ventilation seat.

5. The terminal fixing device for a power distribution cabinet according to claim 1, characterized in that: The closed spring is in a shortened state.

6. The terminal fixing device for a power distribution cabinet according to claim 1, characterized in that: The separating magnetic column and the extrusion magnetic column are arranged with opposite poles.

7. The terminal fixing device for a power distribution cabinet according to claim 1, characterized in that: The air inlet slot is a through-type structure, and the air inlet pipe is connected to the air inlet slot.

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