Assembled direct-current power supply cabinet
Through the hollow structure and modular splicing design, and by using components such as alignment blocks, locking pins and elastic clips, the DC power supply cabinet can be quickly installed and disassembled, solving the problem of inconvenient disassembly in the existing technology and improving maintenance efficiency and flexibility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI KAIHUA POWER SUPPLY EQUIP CO LTD
- Filing Date
- 2025-04-28
- Publication Date
- 2026-05-01
AI Technical Summary
Existing DC power supply cabinets are fixed with screws or welding during assembly, which makes disassembly and maintenance inconvenient and makes it difficult to achieve flexible disassembly and transportation.
The frame design features a hollow structure, with the insertion of alignment blocks and locking pins, and the engagement of spring-driven locking pins and pin holes. The side panels are fixed by the insertion of alignment blocks and alignment slots, and the back panel frame is engaged with the slots by regular hexagonal elastic clips. The base and frame are locked by threaded posts and threaded sleeves of the inner sleeve, enabling quick installation or disassembly.
It improves maintenance efficiency, facilitates partial replacement or cleaning, reduces operation and maintenance costs, adapts to the installation needs of parts of different sizes, and simplifies the disassembly and assembly process.
Smart Images

Figure CN224191817U_ABST
Abstract
Description
A modular DC power supply cabinet Technical Field
[0001] This utility model relates to the field of power supply cabinet technology, and in particular to an assembled DC power supply cabinet. Background Technology
[0002] A DC power supply cabinet is a device used to provide a stable DC power supply and is widely used in fields such as communications, power, and industrial automation.
[0003] DC power supply cabinets play a crucial role in communication base stations, data centers, industrial automation systems, and other applications, providing stable and reliable DC power to various devices. For example, Chinese Patent Publication No. CN206516948U discloses an assembled DC power supply cabinet, comprising a main cabinet body, a first cabinet, a second cabinet, a mounting plate, and a fixing plate. The main cabinet body is composed of the first and second cabinets from left to right. Connecting columns are fixed to the top of both the first and second cabinets, and these columns are secured by connectors. Both the first and second cabinets have doors at their front ends. The mounting plate is fixed to the interior of the first and second cabinets via slots, and a fixing plate is fixed to the front end of the mounting plate with screws. Slide rails are fixed to both sides of the fixing plate. Electrical components are mounted on the upper end of the fixing plate and are electrically connected to conductive connectors. A wire is connected to the other end of the conductive connector and is located inside the wire chamber. This invention provides convenient cabinet installation, and the electrical components are connected via wires within the wire chamber, making the connection easy and less prone to confusion.
[0004] Currently, most DC power supply cabinets, although they adopt an assembled structure and a disassembled installation method that facilitates transportation, are basically fixed with screws or welding during assembly. If disassembly and relocation or internal component repair is required later, it is difficult to disassemble them again, which causes trouble for subsequent maintenance work. Summary of the Invention
[0005] The purpose of this utility model is to address the aforementioned shortcomings in the existing technology by proposing an assembled DC power supply cabinet.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] Design an assembled DC power supply cabinet, including a frame, the four sides of the frame being hollow structures, and a cabinet door being hinged to the front of the frame via a door hinge, the opening and closing positions of the cabinet door and the frame being set by a handle lock.
[0008] The frame is provided with side plates on both sides, and alignment blocks are symmetrically distributed along the vertical position on the inward side of the side plates. Alignment grooves are opened on the end face of the frame, and the ends of the alignment blocks are inserted into the alignment grooves.
[0009] The alignment block has a pin groove at one end away from the side plate. A locking pin is provided inside the pin groove. The locking pin is slidably sleeved with the inside of the pin groove. A spring is provided inside the pin groove. The two ends of the spring are fixedly assembled with the end face of the locking pin and the inner wall of the pin groove, respectively. A pin hole penetrating the frame is provided on the inner wall of the alignment groove. The surface of the locking pin is slidably penetrating the inside of the pin hole.
[0010] In detail, the back of the frame is covered with a plate frame, and a dustproof net is fixedly embedded on the inner side of the plate frame. The dustproof net is made of aluminum alloy wire mesh material.
[0011] In detail, the plate frame has an elastic clip fixed at one end near the frame along the vertical position, and a slot is provided on the back of the frame. The surface of the elastic clip and the inside of the slot are interlocked.
[0012] In detail, the shape of the elastic card and the inner shape of the card slot are both regular hexagons, and the elastic card is made of rubber material.
[0013] In detail, the frame has a base at its bottom, and a vertical plate is fixed to the top of the base. The vertical plates are symmetrically distributed along both ends of the base, and mounting holes that penetrate the interior of the vertical plates are opened on their surfaces.
[0014] In detail, mounting plates are provided on the front of two vertical plates distributed along the same horizontal direction. The mounting plates are fixed to the vertical plates by screws. The inner wall of the mounting hole is provided with internal threads, and the surface of the screw penetrates the interior of the mounting hole and is threadedly connected with its internal threads.
[0015] In detail, an inner sleeve is fixedly installed through both ends of the base, and a threaded post is fixed to the bottom of the frame, with the threaded post and the inner sleeve being installed through each other.
[0016] In detail, the threaded column has a threaded sleeve on its surface, the lower end of the threaded sleeve is in close contact with the end face of the inner sleeve, and several knobs are fixedly distributed on the outer ring wall of the threaded sleeve.
[0017] The design scheme proposed in this utility model has the following beneficial effects in application:
[0018] 1. The side panels of this solution achieve quick positioning through the insertion of alignment blocks and alignment slots, and are fixed by the cooperation of spring-driven snap pins and pin holes. Installation or disassembly can be completed without additional tools. The back panel frame is fixed to the dustproof net by the snap-fit of regular hexagonal elastic clips and slots. The rubber material ensures both stability and convenience. The base and frame are locked by threaded posts and threaded sleeves of the inner sleeve, which enables flexible assembly. This design significantly improves maintenance efficiency, facilitates partial replacement or cleaning, and reduces operation and maintenance costs.
[0019] 2. As described in 1, the symmetrically arranged vertical plates on the base are fixed to the mounting plates by screws through mounting holes with internal threads, which supports the flexible arrangement of multi-level mounting plates and adapts to the installation needs of accessories of different sizes. The mounting plates can be drilled to expand the mounting points, and the vertical distribution of the vertical plates allows for the layered use of space. Attached Figure Description
[0020] Figure 1 is a schematic diagram of the overall front structure of this utility model;
[0021] Figure 2 is an enlarged schematic diagram of point A of this utility model;
[0022] Figure 3 is a schematic diagram of the overall rear structure of this utility model;
[0023] Figure 4 is a schematic diagram of the internal structure of this utility model;
[0024] Figure 5 is a schematic diagram of the base structure of this utility model;
[0025] Figure 6 is a schematic diagram of the dustproof net structure of this utility model.
[0026] In the diagram: 1. Frame; 11. Door; 12. Side panel; 13. Alignment block; 14. Alignment groove; 15. Pin groove; 16. Spring; 17. Locking pin; 18. Pin hole; 2. Plate frame; 21. Dustproof net; 22. Elastic clip; 23. Clip groove; 3. Base; 31. Vertical plate; 32. Mounting hole; 33. Mounting plate; 34. Screw; 3001. Internal sleeve; 3002. Threaded post; 3003. Threaded sleeve. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0028] Referring to Figures 1-6, an assembled DC power supply cabinet includes a frame 1. The four sides of the frame 1 are all hollowed out. The hollowed-out design in four directions not only facilitates internal maintenance, but also facilitates the installation of heat dissipation structures. The front of the frame 1 is hinged to a cabinet door 11 through a door hinge. The opening and closing position of the cabinet door 11 and the frame 1 is set by a handle lock. The cabinet door 11 can cover the hollowed-out area on the front of the frame 1.
[0029] Side plates 12 are provided on both sides of the frame 1. Alignment blocks 13 are symmetrically distributed along the vertical position on the inward side of the side plate 12. Alignment grooves 14 are opened on the end face of the frame 1. The ends of the alignment blocks 13 are inserted into the interior of the alignment grooves 14. The two side plates 12 can cover the hollow areas on both sides of the frame 1 respectively. By inserting and docking the alignment blocks 13 with the alignment grooves 14, the side plates 12 and the frame 1 can be quickly positioned and docked.
[0030] The alignment block 13 has a pin groove 15 at the end away from the side plate 12. A locking pin 17 is provided inside the pin groove 15. The locking pin 17 is slidably sleeved with the inside of the pin groove 15. A spring 16 is provided inside the pin groove 15. The two ends of the spring 16 are fixedly assembled with the end face of the locking pin 17 and the inner wall of the pin groove 15, respectively. A pin hole 18 penetrating the frame 1 is provided on the inner wall of the alignment groove 14. The surface of the locking pin 17 is slidably penetrating the inside of the pin hole 18. When it is necessary to align the side plate 12 with the frame 1, the side plate 12 is covered on the side of the frame 1. At this time, the alignment block 13 is inserted into the inside of the alignment groove 14. When the position of the locking pin 17 corresponds to the position of the pin hole 18, the locking pin 17 can spring into the inside of the pin hole 18 through the reset effect of the spring 16, thereby realizing the fixation of the side plate 12 and the frame 1.
[0031] It should be further explained that the back of the frame 1 is covered by a plate frame 2, and a dustproof net 21 is fixedly embedded in the inner side of the plate frame 2. The dustproof net 21 is made of aluminum alloy wire mesh material. The dustproof net 21 can cover the hollow area on the back of the frame 1, and protect against external lint and dust while ensuring ventilation and heat dissipation.
[0032] It should be further explained that an elastic clip 22 is fixed at the upper and lower position of one end of the plate frame 2 near the frame 1, and a slot 23 is opened on the back of the frame 1. The surface of the elastic clip 22 and the inside of the slot 23 are interlocked. By splicing the elastic clip 22 and the slot 23, the dustproof net 21 can be easily assembled and disassembled, thereby facilitating regular disassembly and cleaning and ensuring stable ventilation.
[0033] It should be further noted that the shape of the elastic card 22 and the inner shape of the slot 23 are both regular hexagons, and the elastic card 22 is made of rubber material. Through the dual constraints of shape and material, the engagement stability of the elastic card 22 and the slot 23 and the ease of disassembly can be guaranteed.
[0034] It should be further explained that a base 3 is provided at the bottom of the frame 1, and a vertical plate 31 is fixed at the top of the base 3. The vertical plates 31 are symmetrically distributed along both ends of the base 3. The surface of the vertical plate 31 is provided with mounting holes 32 that penetrate through it. The vertical plate 31 can serve as a vertical support structure and can fix the mounting plate 33 in conjunction with the mounting holes 32.
[0035] It should be further explained that mounting plates 33 are provided on the front of the two vertical plates 31 distributed along the same horizontal direction. The mounting plates 33 are fixed to the vertical plates 31 by screws 34. The inner wall of the mounting hole 32 is provided with internal threads. The surface of the screw 34 penetrates the interior of the mounting hole 32 and is threadedly connected to its internal threads. The mounting plates 33 serve as the installation points for accessories in the power cabinet. Multiple mounting plates 33 can be set along the vertical position of the vertical plates 31. The mounting plates 33 can also be drilled for auxiliary installation of accessories. They can be flexibly processed according to actual needs.
[0036] It should be further explained that the base 3 has an inner sleeve 3001 fixedly installed through both ends, and a threaded post 3002 is fixed at the bottom of the frame 1. The threaded post 3002 and the inner sleeve 3001 are installed through each other. The base 3 can serve as a load-bearing structure for the two vertical plates 31 and the mounting plate 33, which is convenient for docking with the frame 1. Through the cooperation of the threaded post 3002 and the inner sleeve 3001, quick docking can be achieved.
[0037] It should be further explained that the threaded column 3002 has a threaded sleeve 3003 on its surface. The lower end of the threaded sleeve 3003 is in close contact with the end face of the inner sleeve 3001. Several knobs are fixedly distributed on the outer ring wall of the threaded sleeve 3003. By installing the threaded sleeve 3003 and the threaded column 3002, the base 3 can be stably installed at the bottom of the inner side of the frame 1.
[0038] Working method: In this solution, the side plate 12 is initially positioned by the symmetrically distributed alignment blocks 13 on its inner side and the alignment grooves 14 on the frame 1. After the alignment blocks 13 are inserted into the alignment grooves 14, the locking pins 17 inside them automatically pop out under the elastic force of the spring 16 and engage with the pin holes 18 on the side wall of the frame 1 to fix the side plate. This process does not require additional tools, and mechanical self-locking can be achieved simply by aligning and pressing. The restoring force of the spring 16 ensures that the locking pins 17 are always tightly attached to the inner wall of the pin holes 18 to avoid loosening due to vibration. At the same time, during disassembly, the side plate 12 can be pulled out simply by manually pressing the locking pins 17 to disengage from the pin holes 18. This design takes into account both installation efficiency and stability. This design is particularly suitable for scenarios that require frequent maintenance. The modular splicing not only ensures structural strength but also simplifies the disassembly and assembly process.
[0039] The frame 2 is fixed to the slot 23 on the back of the frame 1 by inserting a regular hexagonal elastic clip 22. The deformation characteristics of the rubber material are used to achieve a tight fit. The dustproof net 21 is embedded in the frame 2. Its aluminum alloy wire mesh structure blocks external dust while allowing ventilation. The regular hexagonal slot design makes the elastic clip 22 evenly stressed from multiple angles, preventing it from falling off on one side. When cleaning is required, the user can directly pull the frame 2 outward. The elastic clip 22 deforms and detaches from the slot 23 due to the flexibility of the rubber, achieving quick disassembly.
[0040] The base 3 is connected to the threaded post 3002 at the bottom of the frame 1 by the built-in sleeve 3001, and then the threaded sleeve 3003 is tightened to press and fix it, forming a stable support platform. The vertical plate 31 is vertically fixed on the base 3, and its mounting hole 32 is connected to the mounting plate 33 by screws 34. The internal thread design of the mounting hole 32 allows the mounting plate 33 to be adjusted arbitrarily in the height direction of the vertical plate 31 to meet the installation requirements of accessories of different sizes. Users can also add holes on the mounting plate 33 according to actual needs to further expand the installation flexibility. The knob design on the outer ring of the threaded sleeve 3003 makes it easy to tighten by hand, and the installation or disassembly of the base 3 can be completed without tools.
[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An assembled DC power supply cabinet, comprising a frame (1), characterized in that: The frame (1) has a hollow structure on all four sides (front, back, left, and right). A door (11) is hinged to the front of the frame (1) via a door hinge. The opening and closing positions of the door (11) and the frame (1) are set by a handle lock. Side plates (12) are provided on both sides of the frame (1). Alignment blocks (13) are symmetrically distributed along the vertical position on the inward side of the side plates (12). Alignment grooves (14) are opened on the end face of the frame (1). The ends of the alignment blocks (13) are inserted into the alignment grooves (14). A pin groove (15) is provided at the end away from the side plate (12). A locking pin (17) is provided inside the pin groove (15). The locking pin (17) is slidably sleeved with the inside of the pin groove (15). A spring (16) is provided inside the pin groove (15). The two ends of the spring (16) are fixedly assembled with the end face of the locking pin (17) and the inner wall of the pin groove (15), respectively. A pin hole (18) penetrating the frame (1) is provided on the inner wall of the alignment groove (14). The surface of the locking pin (17) is slidably penetrating the inside of the pin hole (18).
2. The assembled DC power supply cabinet according to claim 1, characterized in that: The back of the frame (1) is covered with a plate frame (2), and a dustproof net (21) is fixedly embedded on the inner side of the plate frame (2). The dustproof net (21) is made of aluminum alloy wire mesh material.
3. The assembled DC power supply cabinet according to claim 2, characterized in that: The plate frame (2) is fixed with an elastic clip (22) at one end near the frame (1) along the vertical position. The back of the frame (1) is provided with a slot (23). The surface of the elastic clip (22) and the inside of the slot (23) are interlocked.
4. The assembled DC power supply cabinet according to claim 3, characterized in that: The elastic card (22) and the groove of the card slot (23) are both regular hexagonal, and the elastic card (22) is made of rubber material.
5. The assembled DC power supply cabinet according to claim 1, characterized in that: The frame (1) has a base (3) at its bottom interior. A vertical plate (31) is fixed at the top of the base (3). The vertical plates (31) are symmetrically distributed along both ends of the base (3). The surface of the vertical plates (31) has mounting holes (32) that penetrate through it.
6. The assembled DC power supply cabinet according to claim 5, characterized in that: Two vertical plates (31) distributed along the same horizontal direction are provided with mounting plates (33) on their front sides. The mounting plates (33) are fixed to the vertical plates (31) by screws (34). The inner wall of the mounting hole (32) is provided with internal threads. The surface of the screw (34) penetrates the interior of the mounting hole (32) and is threadedly connected to its internal threads.
7. The assembled DC power supply cabinet according to claim 6, characterized in that: The base (3) has an inner sleeve (3001) fixedly installed through both ends, and a threaded post (3002) is fixedly installed at the bottom of the frame (1), with the threaded post (3002) and the inner sleeve (3001) being installed through each other.
8. The assembled DC power supply cabinet according to claim 7, characterized in that: The threaded column (3002) has a threaded sleeve (3003) threadedly connected to its surface. The lower end of the threaded sleeve (3003) is in close contact with the end face of the inner sleeve (3001). Several knobs are fixedly distributed on the outer ring wall of the threaded sleeve (3003).
Citation Information
Patent Citations
Assembled DC power supply cabinet
CN206516948U