A power distribution cabinet convenient to assemble

Abstract

The utility model discloses a power distribution cabinet convenient to combination installation, including mounting bracket, top cap and moving frame, the opposite side inner wall and bottom inner wall of mounting bracket are established with two first clamping groove and two second clamping groove respectively, and the inner wall opposite two first clamping groove is connected with a side plate, including: limiting mechanism: be located in the inside of power distribution cabinet, the limiting mechanism includes panel, and one side outer wall of one of the side plate is equipped with three equidistance distribution's clamping block, and the side outer wall of moving frame is close to the clamping block and is connected with mounting panel through bolt fixing, the utility model discloses power distribution cabinet convenient to combination installation has can reduce installation time, improve combination installation efficiency, flexible adjustment power distribution cabinet inside's installation space, reduce cost input, the effect of reducing delivery cycle.

Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, and in particular to a power distribution cabinet that is easy to assemble and install. Background Technology

[0002] A power distribution cabinet (also known as a distribution box or switch cabinet) is a type of electrical equipment that centrally controls, distributes, and protects electrical energy. It is widely used in industries, commerce, buildings, and infrastructure. Its core function is to distribute, control, protect, and monitor electrical energy through internal electrical components (such as circuit breakers, contactors, and relays) to ensure the safe and stable operation of the power system.

[0003] However, traditional distribution cabinets are often assembled using welding or a large number of bolts for fixing, and the cabinet size is mostly an integrated fixed design. This makes it impossible to quickly and flexibly adjust the installation position of the electrical components inside the distribution cabinet according to different installation spaces or functional requirements. Custom production is required for specific scenarios, which may lead to increased costs and extended delivery cycles. The above problems seriously restrict the installation efficiency and scenario adaptability of distribution cabinets, and there is an urgent need for a new structure to simplify the installation process and improve size flexibility.

[0004] For example, in a power renovation project in a smart manufacturing workshop, a power distribution cabinet needs to be installed in a narrow passage (1.2 meters wide) with a minimum of 0.3 meters of space for robot operation. Traditional welded fixed power distribution cabinets cannot be adjusted in width, so the robot protective cover needs to be removed for installation (increasing the time per unit from 2 hours to 3 hours). Moreover, personnel cannot stand to operate during maintenance, so scaffolding needs to be erected (extending the maintenance time per unit from 1.5 hours to 4 hours), thereby increasing the input of manpower and time costs and affecting work efficiency. Utility Model Content

[0005] This utility model discloses a power distribution cabinet that is easy to assemble and install. It aims to solve the technical problems of traditional power distribution cabinets, which are mostly fixed by welding or a large number of bolts when assembled and installed. Moreover, the cabinet size is mostly an integrated fixed design, which makes it impossible to quickly and flexibly adjust the installation position of the electrical components inside the power distribution cabinet according to different installation spaces or functional requirements. Custom production is required for specific scenarios, which may lead to increased costs and extended delivery cycles.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A power distribution cabinet that is easy to assemble and install includes a mounting frame, a top cover, and a movable frame. The mounting frame has two first slots and two second slots on opposite inner walls and a bottom inner wall, respectively. A side plate is engaged with the inner walls of the two first slots. The cabinet includes: a limiting mechanism located inside the power distribution cabinet, comprising a panel; three equally spaced locking blocks on one outer wall of one side plate; a mounting plate fixedly connected to the outer wall of the movable frame near the locking blocks by bolts; a sliding groove on one outer wall of the mounting plate; an adjusting plate slidably connected to the inner wall of the sliding groove; three equally spaced fixing seats on one outer wall of the adjusting plate; two clamping plates hinged to one outer wall of each fixing seat; a limiting spring between the side wall of each clamping plate and the fixing seat; and a storage mechanism located on the movable frame.

[0008] The above technical solution reduces installation time, improves assembly efficiency, allows for flexible adjustment of the installation space inside the distribution cabinet, reduces costs, and shortens delivery time. Specifically, before installation, electrical components such as circuit breakers and contactors are pre-installed on the panel. The position of the moving frame is adjusted according to the circuit layout, and the self-locking mechanism of the directional wheels is locked. The adjusting plate is pulled out from the mounting plate to the preset position, so that the two clamps of the same fixed seat contact the corresponding blocks. By manually applying pressure, the clamps are forced to expand outward against the spring force of the limit spring until the clamps and blocks are locked together. Then, the panel slides to the distribution cabinet through the connecting groove on the top of the mounting plate. Adjacent panels are electrically connected through a preset IEC standard plug-in busbar. The back of the panel (i.e., the other side of the outer wall of the mounting frame) has a preset busbar interface (such as an IEC standard plug). When assembling, the plugs of adjacent panels are aligned and inserted. A "click" sound indicates that the electrical connection is complete. Pre-installation of components reduces on-site installation time, and plug-in busbars avoid on-site wire stripping and crimping, enabling panel splicing to be completed in a short time.

[0009] In a preferred embodiment, two crossbeams are bolted between the two side plates. The top and bottom outer walls of the movable frame are provided with directional wheels. Two of the directional wheels are slidably connected between the two crossbeams, and the other two directional wheels are slidably connected between the bottom and top inner walls of the mounting frame, respectively. The axles of the directional wheels are provided with self-locking components. One of the side plates has two bosses on the outer wall away from the locking block, and the other side plate has two limiting grooves on the outer wall. The bosses and the limiting grooves are used in conjunction.

[0010] In this solution, once the mobile frame reaches the target position, the operator triggers the self-locking component (such as rotating the handle or pressing the button). The wheel axle self-locking component fixes the wheel axle through mechanical friction or meshing force, preventing the directional wheel from rolling. Adjacent distribution cabinets are connected by limit grooves and bosses. This convex-concave fit structure ensures automatic alignment during assembly, avoiding errors caused by manual adjustment. In actual use, lifting holes or rollers can also be added to the top or bottom of the distribution cabinet for easy handling and positioning.

[0011] In a preferred embodiment, the storage mechanism includes six limiting blocks. Six mounting slots are formed on one outer wall of the movable frame. The limiting blocks are slidably connected to the inner wall of the mounting slots. Fixing plates are provided on both outer walls of the limiting blocks. A connecting block is connected to one outer wall of one of the fixing plates via a bearing. A return spring is fixedly connected to one outer wall of the connecting block. A lower toothed ring is fixedly connected to one end of the return spring. A connecting cylinder is slidably connected inside the other fixing plate. An upper toothed ring is provided on the outer wall of the other fixing plate near the lower toothed ring. A limiting ring is fixedly connected to the outer wall of the connecting cylinder. A connecting rod is provided on the inner wall of the connecting cylinder near the other fixing plate. One end of the connecting rod passes through one outer wall of the upper toothed ring, and one end of the connecting rod is fixedly connected to the center of one outer wall of the lower toothed ring. The upper toothed ring and the lower toothed ring mesh with each other.

[0012] In this solution, when adjusting the wiring harness routing according to actual connection requirements, external force is used to push the connecting cylinder to slide along the inner wall of the fixed plate. The connecting cylinder drives the connecting rod and the lower toothed ring to move. The lower toothed ring compresses the return spring and disengages from the engagement with the upper toothed ring. Then, the limiting ring is rotated in place, thereby causing the lower toothed ring, connecting block, return spring, and connecting block to rotate on one of the fixed plates. Then, the pushing force on the connecting cylinder is released. At this time, the upper and lower toothed rings are engaged under the elastic force of the return spring. The rotation angle of the lower toothed ring can then be adjusted and locked. The position and angle of the limiting ring can be adjusted according to the bending direction of the wiring harness, and the wiring harness can be passed through the limiting ring to avoid wiring conflicts caused by changes in the cabinet position and tangling of multiple wires.

[0013] As described above, a power distribution cabinet that is easy to assemble and install includes a mounting frame, a top cover, and a movable frame. The mounting frame has two first slots and two second slots on opposite inner walls and a bottom inner wall, respectively. A side plate is engaged with the inner walls of the two first slots. The cabinet includes: a limiting mechanism located inside the power distribution cabinet, comprising a panel; three equally spaced locking blocks on one outer wall of one side plate; a mounting plate fixedly connected to the outer wall of the movable frame near the locking blocks by bolts; a sliding groove on one outer wall of the mounting plate; an adjusting plate slidably connected to the inner wall of the sliding groove; three equally spaced fixing seats on one outer wall of the adjusting plate; two clamping plates hinged to one outer wall of each fixing seat; a limiting spring between the side wall of each clamping plate and the fixing seat; and a storage mechanism located on the movable frame. The power distribution cabinet provided by this utility model, which is easy to assemble and install, has the technical effects of reducing installation time, improving assembly and installation efficiency, flexibly adjusting the installation space inside the power distribution cabinet, reducing cost input, and shortening the delivery cycle. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a power distribution cabinet that is easy to assemble and install according to this utility model.

[0015] Figure 2 This is a top view of the mounting frame structure of a power distribution cabinet that is easy to assemble and install, as proposed in this utility model.

[0016] Figure 3 This is a schematic diagram of the crossbeam and limiting groove structure of a power distribution cabinet that is easy to assemble and install according to this utility model.

[0017] Figure 4 This is a schematic diagram of a movable frame structure for a power distribution cabinet that is easy to assemble and install, as proposed in this utility model.

[0018] Figure 5 This is a schematic diagram of the limiting mechanism structure of a power distribution cabinet that is easy to assemble and install, as proposed in this utility model.

[0019] Figure 6 This is a schematic diagram of the storage mechanism structure of a power distribution cabinet that is easy to assemble and install, as proposed in this utility model.

[0020] In the attached diagram: 1. Mounting bracket; 2. Top cover; 3. Side plate; 4. Boss; 5. Movable frame; 6. Panel; 7. Limiting groove; 8. Crossbeam; 9. Mounting plate; 10. Upper toothed ring; 11. Adjusting plate; 12. Locking block; 13. Mounting groove; 14. Fixing plate; 15. Limiting ring; 16. Clamping plate; 17. Fixing seat; 18. Limiting spring; 19. Connecting block; 20. Return spring; 21. Lower toothed ring. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and marked in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0022] The power distribution cabinet disclosed in this utility model is easy to assemble and install. It is mainly used in traditional power distribution cabinets, which are often fixed by welding or a large number of bolts when assembled. Moreover, the cabinet size is mostly an integrated fixed design, which makes it impossible to quickly and flexibly adjust the installation position of the electrical components inside the power distribution cabinet according to different installation spaces or functional requirements. Custom production is required for specific scenarios, which may lead to increased costs and extended delivery cycles.

[0023] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5 A power distribution cabinet that is easy to assemble and install includes a mounting frame 1, a top cover 2, and a movable frame 5. The inner wall of the mounting frame 1 on one side and the inner wall of the bottom are respectively provided with two first slots and two second slots. A side plate 3 is snapped into the inner wall of the two first slots. The cabinet includes: a limiting mechanism located inside the power distribution cabinet, which includes a panel 6. One side plate 3 has three equally spaced locking blocks 12 on one outer wall. The movable frame 5 is fixedly connected to the outer wall of the side plate 5 near the locking blocks 12 by bolts. The outer wall of the mounting plate 9 has a sliding groove. The inner wall of the sliding groove is slidably connected to an adjusting plate 11. The outer wall of the adjusting plate 11 has three equally spaced fixing seats 17. The outer wall of the fixing seats 17 is hinged to two clamping plates 16. A limiting spring 18 is provided between the side wall of the clamping plate 16 and the fixing seat 17. The two clamping plates 16 cooperate with the locking blocks 12. A storage mechanism is located on the movable frame 5.

[0024] The axial direction of the limiting spring 18 is perpendicular to one side of the outer wall of the fixed base 17.

[0025] In practical use, the inner walls of the opposite sides of the two clamping plates 16 have a symmetrical arc structure. The two clamping plates 16 and the card block 12 form a progressive clamping fit. The symmetrical arc design can better fit the surface of the circular card block 12. This design optimizes the traditional line contact into surface contact, which significantly increases the contact area.

[0026] The top outer wall of the mounting plate 9 has two connecting grooves, and the bottom of the panel 6 is slidably connected to the inner wall of the connecting grooves.

[0027] In the specific implementation process, two crossbeams 8 are fixedly connected between the two side plates 3 by bolts. The top and bottom outer walls of the movable frame 5 are equipped with directional wheels. Two directional wheels are slidably connected between the two crossbeams 8, and the other two directional wheels are slidably connected between the bottom inner wall and the top inner wall of the mounting frame 1, respectively. The axle of the directional wheel is equipped with a self-locking assembly. Two bosses 4 are provided on the outer wall of one side plate 3 away from the locking block 12, and two limiting grooves 7 are provided on the outer wall of the other side plate 3. The bosses 4 and the limiting grooves 7 are used in conjunction. It should be noted that the directional wheel at the top of the movable frame 5 (not shown in the figure) is locked after movement by the wheel axle self-locking assembly. The self-locking assembly is used to fix the rolling freedom of the directional wheel after the power distribution cabinet is in place, so as to prevent the power distribution cabinet from sliding due to external forces such as collisions or ground vibrations. The self-locking assembly can be implemented by mechanical friction, ratchet and pawl or similar locking mechanisms. Its specific structure is not limited to this embodiment. Those skilled in the art can choose conventional locking means according to actual needs. Once the mobile frame 5 moves to the target position, the operator triggers the self-locking component, such as by rotating the handle or pressing the button. The wheel and axle self-locking component fixes the wheel and axle through mechanical friction or meshing force, preventing the directional wheel from rolling. This design avoids the cumbersome operation of locking traditional universal wheels with bolts or wrenches, improving the assembly and installation efficiency of the distribution cabinet. Furthermore, the specific structure of the self-locking component can adopt any locking mechanism known in the prior art, such as ratchet pawl, electromagnetic brake, screw nut, etc. This embodiment does not limit this, as long as the wheel and axle locking function can be achieved. Two adjacent distribution cabinets are connected by the limit groove 7 and the boss 4. This convex-concave fit structure ensures automatic alignment during assembly, avoiding manual adjustment errors. In actual use, lifting holes or rollers can also be added to the top or bottom of the distribution cabinet for easy handling and positioning.

[0028] Specifically, in use, the distribution cabinet uses detachable side panels 3 and front panels 6. When maintenance is required after assembly, it does not need to be completely disassembled; operation can be performed by opening a portion of the front panel 6. Before installation, electrical components such as circuit breakers and contactors are pre-installed on the front panel 6. The position of the moving frame 5 is adjusted according to the circuit layout, and the self-locking mechanism of the directional wheel is locked. The adjusting plate 11 is pulled out from the mounting plate 9 to the preset position, so that the two clamping plates 16 of the same fixed base 17 contact the corresponding locking blocks 12. By manually applying pressure, the clamping plates 16 overcome the elastic force of the limit spring 18 and expand outward until the clamping plates 16 contact the locking blocks 12. Block 12 is fixed by snap-fit, and then panel 6 is slidably connected to the distribution cabinet through the top connecting groove of mounting plate 9. Adjacent panels 6 are electrically connected through a preset IEC standard plug-in busbar. The back of panel 6 (i.e., the other side of the outer wall of mounting bracket 1) has a preset busbar interface such as an IEC standard plug. When assembling, align the plugs of adjacent panels 6 and insert them. When you hear a "click", the electrical connection is completed. Pre-installed components reduce on-site installation time, and plug-in busbars avoid on-site wire stripping and crimping, enabling panel 6 to be assembled in a short time.

[0029] Reference Figure 1 , Figure 2 , Figure 4 and Figure 6 In a preferred embodiment, the storage mechanism includes six limiting blocks. Six mounting slots 13 are provided on one side of the outer wall of the movable frame 5. The limiting blocks are slidably connected to the inner wall of the mounting slots 13. Fixing plates 14 are provided on both sides of the outer wall of the limiting blocks. A connecting block 19 is connected to one side of the outer wall of one fixing plate 14 via a bearing. A return spring 20 is fixedly connected to one side of the outer wall of the connecting block 19. A lower toothed ring 21 is fixedly connected to one end of the return spring 20. A connecting cylinder is slidably connected inside the other fixing plate 14. An upper toothed ring 10 is provided on the outer wall of the other fixing plate 14 near the lower toothed ring 21. A limiting ring 15 is fixedly connected to the outer wall of the connecting cylinder. A connecting rod is provided on the inner wall of the connecting cylinder near the other fixing plate 14. One end of the connecting rod passes through one side of the outer wall of the upper toothed ring 10, and one end of the connecting rod is fixedly connected to the center of one side of the outer wall of the lower toothed ring 21. The upper toothed ring 10 and the lower toothed ring 21 mesh with each other.

[0030] Specifically, when adjusting the wiring harness routing according to actual connection requirements, external force is used to push the connecting cylinder to slide along the inner wall of the fixed plate 14. The connecting cylinder drives the connecting rod and the lower toothed ring 21 to move. The lower toothed ring 21 compresses the return spring 20 and disengages from the engagement state with the upper toothed ring 10. Then, the limiting ring 15 is rotated in place, thereby driving the lower toothed ring 21, the connecting block 19, the return spring 20, and the connecting block 19 to rotate on one of the fixed plates 14. Then, the pushing force on the connecting cylinder is released. At this time, the upper toothed ring 10 and the lower toothed ring 21 are in an engagement state under the elastic force of the return spring 20. The rotation angle of the lower toothed ring 21 is then adjusted and locked. The position and angle of the limiting ring 15 can be adjusted according to the bending direction of the wiring harness, and the wiring harness is passed through the limiting ring 15 to avoid wiring conflicts caused by changes in the cabinet position and tangling of multiple wires.

[0031] Reference Figure 1 and Figure 2 In a preferred embodiment, metal slots are provided at the four corners of the top outer wall of the mounting bracket 1, and magnetic pins are provided at the four corners of the bottom outer wall of the top cover 2. The magnetic pins are detachably connected to the metal slots by magnetic attraction. The magnetic pins include neodymium iron boron magnet cores and plastic guide sleeves. When installing, the top cover 2 is aligned with the slots and the magnets automatically attract. It can be fixed by pressing down with a little force. When disassembling, the edge of the top cover 2 can be pinched and lifted. This setting does not require screwdrivers / wrenches and can be operated by a single person by hand. The installation / removal of a single side panel 3 or top cover 2 can be completed in a short time.

[0032] Working principle: Before installation, electrical components such as circuit breakers and contactors are pre-installed on panel 6. The position of the movable frame 5 is adjusted according to the circuit layout, and the directional wheels are locked using the self-locking assembly. The adjusting plate 11 is pulled out from the mounting plate 9 to the preset position, so that the two clamping plates 16 of the same fixed base 17 contact the corresponding locking blocks 12. Manual pressure is applied to cause the clamping plates 16 to expand outwards against the spring force of the limit spring 18 until the clamping plates 16 and locking blocks 12 are locked together. Then, panel 6 is slidably connected to the distribution cabinet through the connecting groove at the top of the mounting plate 9. Adjacent panels 6 are connected by a preset IEC standard. The plug-in busbar enables electrical connection. The back of panel 6, i.e. the other side of the mounting bracket 1, has a pre-set busbar interface such as an IEC standard plug. When assembling, align the plugs of adjacent panels 6 and insert them. A "click" sound indicates that the electrical connection is complete. Pre-installed components reduce on-site installation time. The plug-in busbar avoids on-site wire stripping and crimping, enabling panel 6 to be assembled in a short time. This allows for quick and flexible adjustments to the internal space of the distribution cabinet and the combination and installation of the distribution cabinet according to different scenarios, thereby improving the efficiency of the combination and installation of the distribution cabinet, reducing cost investment, and shortening the delivery cycle.

[0033] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A power distribution cabinet for facilitating combined installation, comprising a mounting frame (1), a top cover (2) and a moving frame (5), characterized in that, The mounting bracket (1) has two first slots and two second slots respectively on its opposite inner wall and bottom inner wall. A side plate (3) is engaged with the inner wall opposite the two first slots, including: Limiting mechanism: Located inside the distribution cabinet, the limiting mechanism includes a panel (6), one of the side plates (3) has three equally spaced locking blocks (12) on one side outer wall, the movable frame (5) is fixedly connected to the mounting plate (9) on the side outer wall near the locking block (12) by bolts, the mounting plate (9) has a sliding groove on one side outer wall, the inner wall of the sliding groove is slidably connected to an adjusting plate (11), the adjusting plate (11) has three equally spaced fixing seats (17) on one side outer wall, the fixing seat (17) has two clamping plates (16) hinged to one side outer wall, the clamping plate (16) and the fixing seat (17) are provided with a limiting spring (18), the two clamping plates (16) are used in conjunction with the locking block (12); Storage mechanism: located on the mobile frame (5).

2. The switchgear cabinet of claim 1, wherein, The axial direction of the limiting spring (18) is perpendicular to one side of the outer wall of the fixed seat (17).

3. The switchgear cabinet of claim 2, wherein, The inner walls of the two clamping plates (16) on opposite sides have a symmetrical arc structure, and the two clamping plates (16) and the locking block (12) form a progressive clamping engagement.

4. The switchgear cabinet of claim 3, wherein, The top outer wall of the mounting plate (9) has two connecting grooves, and the bottom of the panel (6) is slidably connected to the inner wall of the connecting grooves.

5. A switchgear cabinet for ease of combined installation according to claim 4, characterized in that Two crossbeams (8) are fixedly connected between the two side plates (3) by bolts. The top and bottom outer walls of the movable frame (5) are provided with directional wheels. Two of the directional wheels are slidably connected between the two crossbeams (8), and the other two directional wheels are slidably connected between the bottom inner wall and the top inner wall of the mounting frame (1). The axle of the directional wheel is provided with a self-locking component. One of the side plates (3) has two bosses (4) on the outer wall away from the card block (12), and the other side plate (3) has two limiting grooves (7) on the outer wall. The bosses (4) and the limiting grooves (7) are used in conjunction.

6. The switchgear of claim 1, wherein, The storage mechanism includes six limiting blocks. Six mounting slots (13) are provided on one outer wall of the movable frame (5). The limiting blocks are slidably connected to the inner wall of the mounting slots (13). Fixing plates (14) are provided on both outer walls of the limiting blocks. One outer wall of one fixing plate (14) is connected to a connecting block (19) via a bearing. A return spring (20) is fixedly connected to one outer wall of the connecting block (19). One end of the return spring (20) is fixedly connected to a lower toothed ring (21). The other fixing plate (14)... An internal sliding connection is provided with a connecting cylinder, and an upper toothed ring (10) is provided on the outer wall of the other fixed plate (14) near the lower toothed ring (21). A limit ring (15) is fixedly connected to the outer wall of the connecting cylinder. A connecting rod is provided on the inner wall of the connecting cylinder near the other fixed plate (14). One end of the connecting rod passes through the outer wall of the upper toothed ring (10), and one end of the connecting rod is fixedly connected to the center of the outer wall of the lower toothed ring (21). The upper toothed ring (10) and the lower toothed ring (21) mesh with each other.

7. The switchgear of claim 1, wherein, The mounting bracket (1) has metal slots at the four corners of its top outer wall, and the top cover (2) has magnetic pins at the four corners of its bottom outer wall. The magnetic pins are detachably connected to the metal slots by magnetic attraction.

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