Power distribution cabinet with modularized plug-in type circuit busbar connection structure

Abstract

The invention relates to the technical field of power distribution cabinets, discloses a power distribution cabinet with a modularized plug-in type circuit busbar connection structure, and solves the problems that the existing power distribution cabinet usually adopts bolts to fix and butt-joint busbars, the installation and maintenance are tedious, one-by-one wiring is needed, the efficiency is low, and the circuit is very inconvenient to disassemble when elements are replaced later. A base is fixedly installed at the bottom of the cabinet body, a cabinet door is hinged to the front portion of the cabinet body, three electrical boxes are detachably installed in the cabinet body through an installation beam, butt joint cylinders are fixedly installed at the bottoms of the electrical boxes, fixed busbars are fixedly installed at the tops of the interiors of the butt joint cylinders, and alignment seats are arranged on the lower portions of the butt joint cylinders. Connecting busbars are inserted into the alignment seats; according to the power distribution cabinet, the busbars are in butt joint through plug-in type fixation, so that installation and maintenance are simpler and more convenient, wiring efficiency is improved, and when elements are replaced in the later period, lines are convenient to disassemble so as to improve operation speed.

Description

Technical Field

[0001] This invention belongs to the field of power distribution cabinet technology, specifically a power distribution cabinet with a modular plug-in circuit busbar connection structure. Background Technology

[0002] Electrical distribution cabinets are key equipment in power systems used for centralized distribution, control, and protection of electrical energy. They distribute input electrical energy to different circuits or electrical equipment according to demand through components such as circuit breakers, contactors, and protective devices. They also have the functions of monitoring and cutting off faults such as overload, short circuit, and leakage to ensure electrical safety. Their structure usually adopts a metal enclosed shell, and the internal modular layout facilitates installation and maintenance. Distribution cabinets are widely used in industrial manufacturing, commercial buildings, data centers, infrastructure, and new energy fields: powering production lines in factories, ensuring the operation of lighting and air conditioning in shopping malls, supporting the stable operation of servers in data centers, maintaining signal and lighting systems in transportation hubs (such as subways and airports), and realizing the collection and distribution of electrical energy in new energy projects such as photovoltaic and wind power. They are an indispensable core link in modern power networks.

[0003] Existing distribution cabinets typically use bolts to fix and connect busbars, which makes installation and maintenance cumbersome, requiring wiring one by one, resulting in low efficiency. When replacing components later, disassembling the wiring is very inconvenient, further slowing down the work. Summary of the Invention

[0004] In view of the above situation and to overcome the defects of the prior art, the present invention provides a power distribution cabinet with a modular plug-in circuit busbar connection structure, which effectively solves the problems in the prior art where the existing power distribution cabinets usually use bolts to fix and connect the busbars, which is cumbersome to install and maintain, requires wiring one by one, is inefficient, and is very inconvenient to disassemble the circuit when replacing components later.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a power distribution cabinet with a modular plug-in circuit busbar connection structure, comprising a cabinet body, a base fixedly installed at the bottom of the cabinet body, a cabinet door hinged to the front of the cabinet body, three electrical boxes detachably installed inside the cabinet body via mounting beams, a docking cylinder fixedly installed at the bottom of each electrical box, a fixed busbar fixedly installed at the top of each docking cylinder, an alignment seat provided at the bottom of each docking cylinder, a connecting busbar inserted into each alignment seat, the upper parts of each of the three alignment seats being connected to the interior of the docking cylinder via limiting components, a first connecting hole being provided on the surface of each connecting busbar, and a second connecting hole being provided on the surface of each fixed busbar;

[0006] Each of the three docking cylinders has an insertion hole on its front side, and an insertion rod is inserted into each insertion hole. A pressing plate is fixedly installed at one end of each insertion rod, and a locking hole is opened at the upper part of each insertion rod. A return spring is sleeved on the surface of each insertion rod, and both ends of the return spring are fixedly connected to the pressing plate and the docking cylinder, respectively. A locking rod is provided on one side of the rear of each docking cylinder, and an adjusting rod is provided on the other side of the rear of each docking cylinder. One end of each of the three adjusting rods is provided with an elastic component, and one end of each of the three adjusting rods is connected to the three locking rods through the elastic component.

[0007] Preferably, limit grooves are provided on both sides of the three insertion rod surfaces, and limit blocks are provided on both sides of the three insertion holes, with the limit blocks slidably installed inside the corresponding limit grooves.

[0008] Preferably, each of the three limiting components includes a connecting strip, and the three connecting strips are respectively fixedly installed on the top of the three alignment seats. Limiting sleeves are fixedly installed at both ends of the connecting strips, and limiting rods are inserted into the inside of each limiting sleeve.

[0009] Preferably, the top of each limiting rod is fixedly connected to the inner top of the docking joint, the bottom of each limiting rod is fixedly connected to the bottom of the docking cylinder through a fixing strip, and each limiting rod is fitted with a telescopic spring. The two ends of the three telescopic springs are respectively fixedly connected to the inner top of the docking cylinder and the top of the limiting sleeve.

[0010] Preferably, each of the three elastic components includes a sliding sleeve, the three sliding sleeves are respectively fixedly installed in the middle of the three adjusting rods, a sliding rod is inserted inside each of the three sliding sleeves, the upper end of each of the three sliding rods is fixedly connected to the docking cylinder through an upper fixed seat, the lower end of each of the three sliding rods is fixedly connected to the docking cylinder through a lower fixed seat, and an arc-shaped spring is sleeved on the surface of each sliding rod, the two ends of the three arc-shaped springs are respectively fixedly connected to the sliding sleeve and the lower fixed seat.

[0011] Preferably, a fixing sleeve is fixedly installed at one end of each adjusting rod, and a rotating shaft is fixedly installed inside each fixing sleeve. One end of each rotating shaft is rotatably connected to the docking cylinder through a positioning block, and the other end of each rotating shaft is rotatably connected to the docking cylinder through a positioning seat. Torsion springs are sleeved on both ends of the three rotating shaft surfaces, and the two ends of each torsion spring are fixedly connected to the fixing sleeve, the positioning block, and the positioning seat, respectively.

[0012] Preferably, a transmission bar is fixedly installed on the surface of each of the three fixed sleeves, and a pin is inserted into the inside of each transmission bar. An opening is opened on the upper part of each clamping rod, and the three pins are fixedly installed inside the three openings respectively.

[0013] Preferably, the upper end of each of the clamping rods is fixedly mounted with a slider via a connecting rod, and the rear surface of each docking cylinder is provided with a sliding groove, with each slider slidably mounted inside the corresponding sliding groove.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] (1) When connecting, the operator inserts the connecting busbar into the alignment seat, and then pushes the alignment seat upward by the connecting busbar. When the alignment seat moves upward, the connecting bar drives the two limit sleeves along the surface of the two limit rods, and simultaneously squeezes the two telescopic springs, thereby increasing the stability of the alignment seat movement and giving it the ability to elastically reset. When the alignment seat moves upward stably, the connecting busbar will be close to the fixed busbar, and the first connecting hole and the second connecting hole will be aligned, so as to improve the accuracy and convenience of the operator inserting the connecting busbar.

[0016] (2) Then the operator presses one end of the adjusting rod, causing the adjusting rod to drive the fixed sleeve to rotate along the rotating shaft. When the adjusting rod rotates in opposite directions, it drives the sliding sleeve to slide down along the surface of the sliding rod to ensure the stability when the adjusting rod rotates downwards, and at the same time squeezes the arc spring. When the fixed sleeve rotates, it will also tighten the torsion spring.

[0017] When the fixed sleeve rotates, it also drives the transmission bar to rotate upward. When the transmission bar rotates upward, it will push the locking rod to move upward through the pin. When the locking rod moves upward, it will drive the slider to slide inside the slide groove through the connecting rod, which increases the stability of the locking rod when it moves.

[0018] (3) Next, the operator pushes the insert rod through the first and second connecting holes by pressing the disc and drives the locking hole through to the rear of the docking cylinder. At the same time, the disc will also squeeze the reset spring, so that the disc and the insert rod have the ability to elastically reset. When the insert rod moves, it will also drive the limiting groove to slide along the limiting block, increasing the stability of the insert rod when it moves. Then, the operator releases the adjusting rod, so that the adjusting rod and the fixed sleeve are rotated and reset under the elastic force of the torsion spring and the arc spring. The fixed sleeve drives the locking rod to move down through the transmission bar and the pin and lock into the inside of the locking hole for limiting, thereby quickly completing the docking.

[0019] (4) This distribution cabinet uses a plug-in fixed connection to connect the busbars, which makes the installation and maintenance easier, increases wiring efficiency, and facilitates the disassembly of the lines when replacing components in the later stage, thereby improving the operation speed. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0021] In the attached diagram:

[0022] Figure 1 This is a schematic diagram of the power distribution cabinet structure with modular plug-in circuit busbar connection structure according to the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the power distribution cabinet with a modular plug-in circuit busbar connection structure according to the present invention.

[0024] Figure 3 This is a schematic diagram of the docking cylinder structure of the present invention. Figure 1 ;

[0025] Figure 4 This is a schematic diagram of the docking cylinder structure of the present invention. Figure 2 ;

[0026] Figure 5 For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0027] Figure 6 For the present invention Figure 4 Enlarged structural diagram at point B;

[0028] Figure 7 This is a schematic diagram of the internal structure of the docking cylinder of the present invention. Figure 1 ;

[0029] Figure 8 This is a schematic diagram of the internal structure of the docking cylinder of the present invention. Figure 2 ;

[0030] In the diagram: 1. Cabinet body; 2. Base; 3. Cabinet door; 4. Connecting tube; 5. Connecting busbar; 6. Mounting beam; 7. Button; 8. Alignment seat; 9. First connecting hole; 10. Insert rod; 11. Insertion hole; 12. Limiting block; 13. Limiting groove; 14. Return spring; 15. Locking hole; 16. Fixed busbar; 17. Second connecting hole; 18. Connecting strip; 19. Limiting sleeve; 20. Limiting rod; 21. Telescopic spring; 22. Locking rod; 23. Adjusting rod; 24. Sliding sleeve; 25. Sliding rod; 26. Arc spring; 27. Upper fixed seat; 28. Lower fixed seat; 29. ​​Fixed sleeve; 30. Rotating shaft; 31. Torsion spring; 32. Positioning seat; 33. Positioning block; 34. Transmission strip; 35. Opening; 36. Pin; 37. Connecting rod; 38. Slider; 39. Slide groove; 40. Electrical box. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0032] Example 1, by Figures 1 to 8The present invention includes a cabinet 1, a base 2 fixedly installed at the bottom of the cabinet 1, a cabinet door 3 hinged to the front of the cabinet 1, one side of the cabinet door 3 being fixedly connected to the cabinet 1 by a latch, three electrical boxes 40 being detachably installed inside the cabinet 1 by mounting beams 6, a docking cylinder 4 being fixedly installed at the bottom of each electrical box 40, a fixed busbar 16 being fixedly installed at the top of each docking cylinder 4, an alignment seat 8 being provided at the bottom of each docking cylinder 4, a connecting busbar 5 being inserted into each alignment seat 8 to connect with the fixed busbar 16, the upper parts of the three alignment seats 8 being connected to the inside of the docking cylinder 4 by limiting components, a first connecting hole 9 being provided on the surface of each connecting busbar 5, and a second connecting hole 17 being provided on the surface of each fixed busbar 16 to match the first connecting hole 9;

[0033] Each of the three docking cylinders 4 has an insertion hole 11 on its front side. An insertion rod 10 is inserted into the insertion hole 11. A pressing plate 7 is fixedly installed at one end of each insertion rod 10. A locking hole 15 is opened at the upper part of one end of each insertion rod 10. A return spring 14 is sleeved on the surface of each insertion rod 10. Both ends of the return spring 14 are fixedly connected to the pressing plate 7 and the docking cylinder 4, respectively. A locking rod 22 that matches the locking hole 15 is provided on one side of the rear of each docking cylinder 4. The locking rod 22 is engaged with the locking hole 15 to limit the movement. An adjusting rod 23 is provided on the other side of the rear of each docking cylinder 4. One end of each of the three adjusting rods 23 is provided with an elastic component. One end of each of the three adjusting rods 23 is connected to the three locking rods 22 through the elastic component.

[0034] Limiting grooves 13 are provided on both sides of the surface of the three insertion rods 10, and limiting blocks 12 are provided on both sides inside the three insertion holes 11. The limiting blocks 12 are slidably installed inside the corresponding limiting grooves 13.

[0035] During connection, the operator inserts the connecting busbar 5 into the alignment seat 8, and then pushes the alignment seat 8 upward by the connecting busbar 5. When the alignment seat 8 moves upward, the limiting component accurately makes the connecting busbar 5 close to the fixed busbar 16, and aligns the first connecting hole 9 and the second connecting hole 17, so as to improve the accuracy and convenience of the operator inserting the connecting busbar 5.

[0036] Then, the operator presses one end of the adjusting rod 23, causing the adjusting rod 23 to drive the elastic component to rotate, causing the elastic component to push the locking rod 22 upward. Next, the operator pushes the insertion rod 10 through the first connecting hole 9 and the second connecting hole 17 by pressing the pressing plate 7, and drives the locking hole 15 through to the rear of the docking cylinder 4. At the same time, the pressing plate 7 will also squeeze the return spring 14, so that the pressing plate 7 and the insertion rod 10 have the ability to elastically return. When the insertion rod 10 moves, it will also drive the limiting groove 13 to slide along the limiting block 12, increasing the stability of the insertion rod 10 when it moves. Then, the operator releases the adjusting rod 23, so that under the elastic force of the elastic component, the locking rod 22 moves downward and locks into the interior of the locking hole 15 for limiting, thereby quickly completing the docking.

[0037] This distribution cabinet uses a plug-in fixed connection to connect the busbars, making installation and maintenance simpler, increasing wiring efficiency, and facilitating the disassembly of the wiring when replacing components later, thereby improving work speed.

[0038] In Example 2, based on Example 1, each of the three limiting components includes a connecting strip 18. The three connecting strips 18 are respectively fixedly installed on the top of the three alignment seats 8. Limiting sleeves 19 are fixedly installed at both ends of the connecting strips 18, and limiting rods 20 are inserted into the inside of each limiting sleeve 19.

[0039] The top of each limiting rod 20 is fixedly connected to the inner top of the docking joint 4, and the bottom of each limiting rod 20 is fixedly connected to the bottom of the docking cylinder 4 through a fixing strip. Each limiting rod 20 is fitted with a telescopic spring 21, and the two ends of the three telescopic springs 21 are fixedly connected to the inner top of the docking cylinder 4 and the top of the limiting sleeve 19, respectively.

[0040] The operator inserts the connecting busbar 5 into the alignment seat 8, and then pushes the alignment seat 8 upward by the connecting busbar 5. When the alignment seat 8 moves upward, the connecting bar 18 drives the two limiting sleeves 19 along the surface of the two limiting rods 20, and at the same time squeezes the two telescopic springs 21. This increases the stability of the alignment seat 8 movement and gives it the ability to elastically reset. When the alignment seat 8 moves upward stably, the connecting busbar 5 will be close to the fixed busbar 16, and the first connecting hole 9 and the second connecting hole 17 will be aligned, thereby improving the accuracy and convenience of the operator inserting the connecting busbar 5.

[0041] In Example 3, based on Example 1, each of the three elastic components includes a sliding sleeve 24. The three sliding sleeves 24 are respectively fixedly installed in the middle of the three adjusting rods 23. A sliding rod 25 is inserted inside each of the three sliding sleeves 24. The upper ends of the three sliding rods 25 are fixedly connected to the docking cylinder 4 through the upper fixing seat 27. The lower ends of the three sliding rods 25 are fixedly connected to the docking cylinder 4 through the lower fixing seat 28. An arc spring 26 is sleeved on the surface of each sliding rod 25. The two ends of the three arc springs 26 are respectively fixedly connected to the sliding sleeve 24 and the lower fixing seat 28.

[0042] One end of each adjusting rod 23 is fixedly fitted with a fixing sleeve 29. Inside each fixing sleeve 29, a rotating shaft 30 is fixedly fitted. One end of each rotating shaft 30 is rotatably connected to the docking cylinder 4 via a positioning block 33. The other end of each rotating shaft 30 is rotatably connected to the docking cylinder 4 via a positioning seat 32. Both ends of the surfaces of the three rotating shafts 30 are fitted with torsion springs 31. Both ends of the torsion springs 31 are fixedly connected to the fixing sleeve 29, the positioning block 33, and the positioning seat 32, respectively.

[0043] The operator presses one end of the adjusting rod 23, causing the adjusting rod 23 to drive the fixed sleeve 29 to rotate along the rotating shaft 30. When the adjusting rod 23 rotates in opposite directions, it drives the sliding sleeve 24 to slide down along the surface of the sliding rod 25 to ensure the stability of the adjusting rod 23 when it rotates downwards, and at the same time, it compresses the arc spring 26. When the fixed sleeve 29 rotates, it will also tighten the torsion spring 31.

[0044] A transmission bar 34 is fixedly installed on the surface of each of the three fixed sleeves 29. A pin 36 is inserted into the inside of each transmission bar 34. An opening 35 is opened on the upper part of each clamping rod 22. The three pins 36 are fixedly installed inside the three openings 35 respectively. A slider 38 is fixedly installed on the upper end of each clamping rod 22 through a connecting rod 37. A groove 39 is opened on the rear surface of each docking cylinder 4. The sliders 38 are slidably installed inside the corresponding grooves 39 respectively.

[0045] When the fixed sleeve 29 rotates, it will also drive the transmission bar 34 to rotate upward. When the transmission bar 34 rotates upward, it will push the locking rod 22 to move upward through the pin 36. When the locking rod 22 moves upward, it will drive the slider 38 to slide inside the slide groove 39 through the connecting rod 37, which increases the stability of the locking rod 22 when it moves.

[0046] The operator releases the adjusting rod 23, which, under the elastic force of the torsion spring 31 and the arc spring 26, rotates the adjusting rod 23 and the fixing sleeve 29 to return to their original positions. The fixing sleeve 29, through the transmission bar 34 and the pin 36, drives the locking rod 22 to move down and engage with the inside of the locking hole 15 for limiting, thereby quickly completing the docking.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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.

[0048] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A power distribution cabinet with a modular plug-in circuit busbar connection structure, comprising a cabinet body (1), a base (2) fixedly installed at the bottom of the cabinet body (1), a cabinet door (3) hinged to the front of the cabinet body (1), and three electrical boxes (40) detachably installed inside the cabinet body (1) via mounting beams (6), characterized in that: The bottom of each electrical box (40) is fixedly installed with a docking cylinder (4), and the top of each docking cylinder (4) is fixedly installed with a fixed busbar (16). The lower part of each docking cylinder (4) is provided with an alignment seat (8), and a connecting busbar (5) is inserted into each alignment seat (8). The upper part of each of the three alignment seats (8) is connected to the inside of the docking cylinder (4) through a limiting component. The surface of each connecting busbar (5) is provided with a first connecting hole (9), and the surface of each fixed busbar (16) is provided with a second connecting hole (17). Each of the three docking cylinders (4) has an insertion hole (11) on its front side. Each insertion hole (11) has an insertion rod (10) inserted inside. Each insertion rod (10) has a pressing plate (7) fixedly installed at one end. Each insertion rod (10) has a locking hole (15) at the upper part of one end. Each insertion rod (10) has a return spring (14) sleeved on its surface. Both ends of the return spring (14) are fixedly connected to the pressing plate (7) and the docking cylinder (4) respectively. Each docking cylinder (4) has a locking rod (22) on one side of its rear. Each docking cylinder (4) has an adjusting rod (23) on the other side of its rear. Each of the three adjusting rods (23) has an elastic component at one end. Each of the three adjusting rods (23) is connected to the three locking rods (22) through the elastic component.

2. A power distribution cabinet with a modular plug-in circuit busbar connection structure according to claim 1, characterized in that: Limiting grooves (13) are provided on both sides of the surface of the three insertion rods (10), and limiting blocks (12) are provided on both sides inside the three insertion holes (11). The limiting blocks (12) are slidably installed inside the corresponding limiting grooves (13).

3. A power distribution cabinet with a modular plug-in circuit busbar connection structure according to claim 1, characterized in that: Each of the three limiting components includes a connecting strip (18), and the three connecting strips (18) are respectively fixedly installed on the top of the three alignment seats (8). Limiting sleeves (19) are fixedly installed at both ends of the connecting strips (18), and limiting rods (20) are inserted inside the limiting sleeves (19).

4. A power distribution cabinet with a modular plug-in circuit busbar connection structure according to claim 3, characterized in that: The top of each limiting rod (20) is fixedly connected to the inner top of the docking joint (4), and the bottom of each limiting rod (20) is fixedly connected to the bottom of the docking cylinder (4) through a fixing strip. Each limiting rod (20) is fitted with a telescopic spring (21), and the two ends of the three telescopic springs (21) are fixedly connected to the inner top of the docking cylinder (4) and the top of the limiting sleeve (19) respectively.

5. A power distribution cabinet with a modular plug-in circuit busbar connection structure according to claim 1, characterized in that: Each of the three elastic components includes a sliding sleeve (24). The three sliding sleeves (24) are respectively fixedly installed in the middle of the three adjusting rods (23). Each of the three sliding sleeves (24) has a sliding rod (25) inserted inside. The upper end of each of the three sliding rods (25) is fixedly connected to the docking cylinder (4) through the upper fixing seat (27). The lower end of each of the three sliding rods (25) is fixedly connected to the docking cylinder (4) through the lower fixing seat (28). Each of the sliding rods (25) has an arc spring (26) sleeved on its surface. Both ends of each of the three arc springs (26) are fixedly connected to the sliding sleeve (24) and the lower fixing seat (28) respectively.

6. A power distribution cabinet with a modular plug-in circuit busbar connection structure according to claim 5, characterized in that: One end of each adjusting rod (23) is fixedly fitted with a fixing sleeve (29), and a rotating shaft (30) is fixedly fitted inside each fixing sleeve (29). One end of each rotating shaft (30) is rotatably connected to the docking cylinder (4) through a positioning block (33), and the other end of each rotating shaft (30) is rotatably connected to the docking cylinder (4) through a positioning seat (32). Both ends of the surfaces of the three rotating shafts (30) are fitted with torsion springs (31), and both ends of the torsion springs (31) are fixedly connected to the fixing sleeve (29), the positioning block (33), and the positioning seat (32), respectively.

7. A power distribution cabinet with a modular plug-in circuit busbar connection structure according to claim 6, characterized in that: A transmission bar (34) is fixedly installed on the surface of each of the three fixed sleeves (29). A pin (36) is inserted into the inside of each transmission bar (34). An opening (35) is opened on the upper part of each clamp (22). The three pins (36) are fixedly installed inside the three openings (35).

8. A power distribution cabinet with a modular plug-in circuit busbar connection structure according to claim 7, characterized in that: The upper end of each of the clamps (22) is fixedly installed with a slider (38) via a connecting rod (37), and the rear surface of the docking cylinder (4) is provided with a groove (39), and the sliders (38) are slidably installed inside the corresponding grooves (39).

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