Capacity-expandable DC array cabinet
By using a motor-driven rotating rod and an active bevel gear in conjunction with a lead screw and slider, along with a compression spring and a locking block, the DC power supply unit can be rapidly expanded and the support frame can be easily installed. This solves the cumbersome expansion problem in existing technologies and improves operational convenience and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU DUANXIANG MECHANICAL & ELECTRICAL TECHNOLOGY CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-05-08
AI Technical Summary
Existing DC power supply units require additional support frames for capacity expansion, which is cumbersome to install and disassemble, affecting the ease of operation and efficiency of the equipment.
The motor drives the rotating rod to drive the active bevel gear, and the position of the assembly frame is adjusted by the cooperation of the lead screw and the slider. The support frame is quickly installed by the use of compression springs and locking blocks.
This improves the ease of adjusting the assembly rack position and the efficiency of installing and disassembling the support frame, thereby enhancing the ease of operation and efficiency of the equipment.
Smart Images

Figure CN224217946U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of DC rack cabinet technology, and more specifically, it relates to an expandable DC rack cabinet. Background Technology
[0002] Expandable DC power distribution cabinets are a type of power distribution device used for DC power supply in power systems. They are mainly used in DC power supply systems in industries such as power, communications, and railways. They are usually implemented through modular design, that is, the cabinet is equipped with an assembly rack, on which multiple output modules can be fixed. When it is necessary to increase the number of output channels, simply add new output modules to the assembly rack.
[0003] When expanding the capacity of some DC output cabinets, additional support frames are required to support the new output modules. However, the existing design requires multiple bolts to fix the support frames, which makes installation, disassembly, and position adjustment cumbersome and seriously affects the ease of operation and actual efficiency of the equipment.
[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided an expandable DC power supply cabinet in order to achieve a more practical value. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides an expandable DC power supply unit, which is achieved by the following specific technical means:
[0006] An expandable DC power supply cabinet includes a cabinet body, an assembly frame, and a support frame. The inner walls of both sides of the cabinet body are provided with a pair of sliding grooves. A lead screw is rotatably connected within each groove. A slider is threadedly connected to the outer periphery of the lead screw. An assembly frame is connected to one side of each pair of sliders. A plurality of slots are provided on one side of the assembly frame. A pair of mounting blocks are installed on one side of the outer wall of the cabinet body. Each mounting block contains a pair of chambers. One end of the lead screw passes through one side of the mounting block and extends into the chamber where a driven bevel gear is installed. A rotating rod is rotatably connected between the pair of chambers. A driving bevel gear is installed on the outer periphery of the rotating rod within the chamber. A pair of mounting seats are installed on both sides of the support frame. A pair of movable grooves are provided on both sides of the support frame. A locking block is movably connected within each movable groove. A transmission rod is movably connected to one side of each mounting seat, and one end of the transmission rod is connected to one side of the locking block.
[0007] Furthermore, a motor is mounted on the upper surface of the mounting block, and the top end of the rotating rod passes through the upper surface of the mounting block and is connected to the output end of the motor.
[0008] Furthermore, a compression spring is fitted around the transmission rod, and the two ends of the compression spring are respectively connected to the opposite side of the locking block and the mounting base.
[0009] Furthermore, a pull block is installed at one end of the transmission rod through one side of the mounting base.
[0010] Furthermore, one side of the support frame is provided with several mounting slots.
[0011] Furthermore, the driving bevel gear and the driven bevel gear mesh with each other.
[0012] Furthermore, the size of the card block matches that of the card slot.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] By using a motor, rotating rod, driving bevel gear, driven bevel gear, lead screw, and slider in coordination, the operator simultaneously starts a pair of motors. The motor drives the rotating rod to rotate, which in turn drives the driving bevel gear. Since the driving and driven bevel gears mesh with each other, the rotation of the driving bevel gear drives the driven bevel gear to rotate, which in turn drives the lead screw to rotate. Because the lead screw is threadedly connected to the slider, the rotation of the lead screw causes the slider to move to one side. The slider then moves the assembly frame to one side, thus facilitating the adjustment of the module position on the assembly frame and improving the product's convenience.
[0015] By using a pull block, transmission rod, compression spring, locking block, and locking slot in combination, when an operator needs to add an output module, the operator installs the output module on the support frame, then moves the pull block towards the center. The pull block, through the transmission rod, drives the locking block to move towards the mounting position. Then, the support frame is moved to the corresponding locking slot. At this point, the operator releases the pull block, and under the force of the compression spring, the compression spring pushes the locking block into the locking slot, thus quickly completing the installation of the support frame. The reverse operation allows for quick disassembly of the support frame, thereby improving work efficiency. Attached Figure Description
[0016] Figure 1 This is a three-dimensional schematic diagram of the present invention.
[0017] Figure 2 This is a three-dimensional cross-sectional view of the present invention.
[0018] Figure 3 This is a three-dimensional schematic diagram of a portion of the structure of this utility model.
[0019] Figure 4 This is a side sectional view of the mounting block in this utility model.
[0020] Figure 5 This is a three-dimensional schematic diagram of the support frame in this utility model.
[0021] Figure 6 This is a utility model Figure 4 An enlarged diagram of A in the diagram.
[0022] Figure 7 This is a utility model Figure 5 Enlarged diagram of B in the diagram.
[0023] In the diagram, the correspondence between component names and drawing numbers is as follows:
[0024] 1. Cabinet; 101. Slide rail; 2. Assembly rack; 201. Slot; 3. Support frame; 301. Mounting base; 302. Movable groove; 303. Mounting groove; 4. Lead screw; 401. Slider; 402. Driven bevel gear; 5. Mounting block; 501. Chamber; 6. Rotating rod; 601. Driving bevel gear; 7. Transmission rod; 701. Compression spring; 702. Pulling block; 703. Locking block; 8. Motor. Detailed Implementation
[0025] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0026] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example
[0028] As attached Figure 1 To be continued Figure 7 As shown:
[0029] This utility model provides an expandable DC power supply cabinet, including a cabinet body 1, an assembly frame 2, and a support frame 3. A pair of sliding grooves 101 are provided on both inner walls of the cabinet body 1. A lead screw 4 is rotatably connected within the sliding groove 101. A slider 401 is threadedly connected to the outer periphery of the lead screw 4. The assembly frame 2 is connected to one side of the pair of sliders 401. Several slots 201 are provided on one side of the assembly frame 2. A pair of mounting blocks 5 are installed on one outer wall of the cabinet body 1. A pair of chambers 501 are provided within the mounting blocks 5. One end of the lead screw 4 passes through the mounting blocks 5. A driven bevel gear 402 is installed on one side of the mounting block 5 and extends into the chamber 501. A rotating rod 6 is rotatably connected between a pair of chambers 501. A driving bevel gear 601 is installed on the outer periphery of the rotating rod 6 inside the chamber 501. A pair of mounting seats 301 are installed on both sides of the support frame 3. A pair of movable slots 302 are provided on both sides of the support frame 3. A locking block 703 is movably connected in the movable slot 302. A transmission rod 7 is movably connected to one side of the mounting seat 301. One end of the transmission rod 7 is connected to one side of the locking block 703.
[0030] The upper end of the mounting block 5 is equipped with a motor 8, and the top end of the rotating rod 6 passes through the upper end of the mounting block 5 and is connected to the output end of the motor 8. The motor 8 drives the active bevel gear 601 to rotate through the rotating rod 6.
[0031] The transmission rod 7 is surrounded by a compression spring 701. The two ends of the compression spring 701 are connected to the opposite side of the locking block 703 and the mounting base 301, respectively. Under the action of the compression spring 701, the compression spring 701 pushes the locking block 703 into the slot 201, thereby enabling the quick installation of the support frame 3.
[0032] One end of the transmission rod 7 passes through one side of the mounting base 301 and is fitted with a pull block 702, which is moved by the transmission rod 7.
[0033] The support frame 3 has several mounting slots 303 on one side, which facilitate the installation of the output module.
[0034] Among them, the driving bevel gear 601 and the driven bevel gear 402 mesh with each other, and the driving bevel gear 601 drives the driven bevel gear 402 to rotate.
[0035] The size of the card block 703 matches that of the card slot 201.
[0036] The working principle of this embodiment:
[0037] Simultaneously, the operator starts a pair of motors 8. Motors 8 drive rotating rod 6, which in turn drives the driving bevel gear 601. Since the driving bevel gear 601 meshes with the driven bevel gear 402, its rotation causes the driven bevel gear 402 to rotate. The driven bevel gear 402 then drives the lead screw 4. Because the lead screw 4 is threadedly connected to the slider 401, its rotation causes the slider 401 to move to one side. The slider 401 then moves the assembly frame 2 to one side, facilitating the adjustment of the module's position on the assembly frame 2 and improving product usability. When an operator needs to add an output module, the operator installs the output module on the support frame 3, and then moves the pull block 702 towards the center. The pull block 702 drives the locking block 703 to move towards the mounting base 301 via the transmission rod 7. Then, the support frame 3 is moved to the corresponding slot 201. At this time, the operator releases the pull block 702. Under the force of the compression spring 701, the compression spring 701 pushes the locking block 703 into the slot 201, thus quickly completing the installation of the support frame 3. The reverse operation can quickly complete the disassembly of the support frame 3, thereby improving work efficiency.
[0038] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. An expandable DC power supply cabinet, comprising a cabinet body (1), characterized in that: It also includes an assembly rack (2) and a support rack (3). A pair of sliding grooves (101) are provided on both inner walls of the cabinet (1). A lead screw (4) is rotatably connected within the sliding groove (101). A slider (401) is threaded onto the outer side of the lead screw (4). An assembly rack (2) is connected to one side of each slider (401). Several slots (201) are provided on one side of the assembly rack (2). A pair of mounting blocks (5) are installed on one outer wall of the cabinet (1). A pair of chambers (501) are provided within each mounting block (5). One end of the lead screw (4) passes through one side of the mounting block (5) and extends to… A driven bevel gear (402) is installed inside the chamber (501). A rotating rod (6) is rotatably connected between a pair of chambers (501). A driving bevel gear (601) is installed on the outer periphery of the rotating rod (6) inside the chamber (501). A pair of mounting seats (301) are installed on both sides of the support frame (3). A pair of movable slots (302) are provided on both sides of the support frame (3). A locking block (703) is movably connected in the movable slot (302). A transmission rod (7) is movably connected to one side of the mounting seat (301). One end of the transmission rod (7) is connected to one side of the locking block (703).
2. The expandable DC power supply unit as described in claim 1, characterized in that: The upper end face of the mounting block (5) is equipped with a motor (8), and the top end of the rotating rod (6) passes through the upper end face of the mounting block (5) and is connected to the output end of the motor (8).
3. The expandable DC power supply unit as described in claim 1, characterized in that: A compression spring (701) is fitted around the transmission rod (7), and the two ends of the compression spring (701) are respectively connected to the opposite side of the locking block (703) and the mounting base (301).
4. The expandable DC power supply unit as described in claim 1, characterized in that: One end of the transmission rod (7) passes through one side of the mounting base (301) and is fitted with a pull block (702).
5. The expandable DC power supply unit as described in claim 1, characterized in that: The support frame (3) has several mounting slots (303) on one side.
6. The expandable DC power supply unit as described in claim 1, characterized in that: The driving bevel gear (601) and the driven bevel gear (402) mesh with each other.
7. The expandable DC power supply unit as described in claim 1, characterized in that: The size of the card block (703) matches that of the card slot (201).