A DC power supply cabinet

Abstract

This utility model discloses a DC power supply cabinet, the key technical features of which include a base, a cabinet body mounted on the upper end of the base, the cabinet body including side panels and a front panel, a top panel at the upper end of the cabinet body, a mounting protrusion A on the lower surface of the front panel, and a slot A corresponding to the mounting protrusion A on the base; a supporting protrusion B extending laterally from the lower end face of the side panel, a supporting groove B corresponding to the supporting protrusion B on the base, casters below the supporting protrusion B, mounting grooves C on both sides of the front panel corresponding to the shape of the side panel, and a mounting groove D on the lower surface of the top panel, the shape of which is adapted to the upper edge of the front panel and the upper edge of the side panel. During assembly, the side panels with casters facilitate the movement of the cabinet components, making assembly and transportation convenient; after installation, the casters can also assist in moving the cabinet. Through the protrusion-slot structure, the mutual locking of the various components ensures good stability.

Description

Technical Field

[0001] This utility model relates to the field of DC power supply technology, and more specifically to a DC power supply cabinet. Background Technology

[0002] Currently, DC power supply cabinets are short for DC power operating systems. Simply put, a DC power supply cabinet is a device that provides stable DC power. Power plants and substations now use DC power for their power operation. It provides power for control loads, power loads, and DC emergency lighting loads, and is the foundation of modern power system control and protection. A DC power supply cabinet consists of AC distribution units, charging module units, step-down silicon chain units, DC feeder units, distribution monitoring units, monitoring module units, and insulation monitoring units. DC power supply cabinets are mainly used in small and medium-sized power plants, hydropower stations, various substations, and other users of DC equipment (such as petrochemical, mining, and railway industries). They are suitable for switch opening and closing, as well as for instruments, meters, relay protection, and fault lighting in secondary circuits.

[0003] However, the existing technology has some drawbacks. The cabinet is large in size, which makes it inconvenient for staff to assemble and move it in the early stages, thus increasing the workload of the staff. At the same time, it is not convenient to move the existing modular DC power supply cabinet in the later stages. The connection points are prone to shaking, which affects the overall firmness and stability of the DC power supply. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the present invention provides a DC power supply cabinet.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a base, with a cabinet body mounted on the upper end of the base. The cabinet body includes side panels and a front panel, and a top panel is mounted on the upper end of the cabinet body. A mounting protrusion A is provided on the lower surface of the front panel, and the base has a slot A corresponding to the mounting protrusion A. A supporting protrusion B extends laterally from the lower end face of the side panel, and the base has a supporting groove B corresponding to the supporting protrusion B. Casters are provided below the supporting protrusion B. Mounting grooves C corresponding to the shape of the side panels are provided on both sides of the front panel. A mounting groove D is provided on the lower surface of the top panel, and the shape of the mounting groove D is adapted to the upper edge of the front panel and the upper edge of the side panel. A cabinet door is movably connected to one of the surfaces of the front panel via a hinge.

[0006] The present invention is further configured such that: a snap-fit ​​structure is provided in the mounting groove C, and a sliding groove adapted to the snap-fit ​​structure is provided on the edge of the side plate.

[0007] The present invention is further configured such that: a locking protrusion E is provided on the side plate near the supporting protrusion B, the locking protrusion E and the supporting protrusion B form a mounting groove E, the shape of the mounting groove E is adapted to the base, the locking protrusion E is provided with a locking structure, and the base is provided with an opening A adapted to the locking structure.

[0008] The present invention is further configured such that: the top plate is provided with a snap-fit ​​structure near the front plate, and the front plate is provided with an opening B adapted to the snap-fit ​​structure.

[0009] The present invention is further configured such that: the snap-fit ​​structure includes a mounting cavity, a pin disposed in the mounting cavity, and a spring sleeved on the pin; a retaining ring for blocking the spring is also provided at the lower end of the mounting cavity; and the pin can move axially within the mounting cavity.

[0010] The present invention is further configured such that: the end of the pin is provided with a guide slope; and the head of the pin is provided with a limiting protrusion.

[0011] The present invention is further configured such that the lower surface of the base is provided with a plurality of liftable threaded fixing feet.

[0012] The present invention is further configured such that an installation slope is provided at the opening of the support groove B.

[0013] In summary, this utility model has the following beneficial effects: During assembly, the side panel with casters facilitates the movement of cabinet components, making the side panel easy to move and transport. Simultaneously, the cooperation between the mounting protrusion A and slot A, the support protrusion B and support groove B, and the mounting groove C and side panel allows for rapid assembly of the cabinet. Automatic fixing is achieved through the snap-fit ​​structure, making installation quick and convenient. After installation, the casters can also assist in moving the cabinet. Through the protrusion-slot structure, the front panel, side panels, base, and top panel are interlocked, achieving both tool-free rapid assembly and ensuring good stability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0015] Figure 2 This is an exploded schematic diagram of this embodiment;

[0016] Figure 3 This is a schematic diagram of the second type of explosion in this embodiment;

[0017] Figure 4 This is a schematic diagram of the third type of explosion in this embodiment;

[0018] Figure 5 This is a schematic diagram of the snap-fit ​​structure in this embodiment;

[0019] Figure 6 This is a schematic cross-sectional view of the snap-fit ​​structure in this embodiment;

[0020] Figure 7 This is a schematic diagram of one handling state of the side plate and the front plate in this embodiment;

[0021] Reference numerals: 1. Base; 11. Slot A; 12. Support groove B; 121. Mounting slope; 13. Opening A; 2. Side panel; 21. Support protrusion B; 211. Caster; 22. Locking protrusion E; 23. Mounting groove E; 24. Slide groove; 3. Front panel; 31. Mounting protrusion A; 32. Mounting groove C; 33. Opening B; 4. Top panel; 41. Mounting groove D; 5. Snap-fit ​​structure; 51. Mounting cavity; 52. Pin; 521. Guide slope; 522. Limiting protrusion; 53. Spring; 54. Retaining ring; 6. Fixed foot; 7. Cabinet door. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings.

[0023] This embodiment discloses a DC power supply cabinet, such as Figures 1 to 4 As shown, the system includes a base 1, with a cabinet mounted on top of the base 1. The cabinet includes side panels 2 and a front panel 3, with a top panel 4 at the top of the cabinet. A mounting protrusion A31 is provided on the lower surface of the front panel 3. The base 1 has a slot A11 corresponding to the mounting protrusion A31. The mounting protrusion A31 on the lower surface of the front panel 3 engages with the slot A11 of the base 1 to achieve a vertical insertion and fixation between the front panel 3 and the base 1. A support protrusion B21 extends laterally from the lower end face of the side panel 2. The base 1 has a support groove B12 corresponding to the support protrusion B21. The support protrusion B21 at the lower end of the side panel 2 engages with the support groove B12 of the base 1, allowing the support protrusion B21 to support the base 1. Casters 211 are located below the support protrusion B21. The casters 211 allow the side panel 2 to be moved with minimal force by a single person during cabinet assembly, saving labor and time costs. Both sides of the main panel 3 are provided with mounting grooves C32 that correspond to the shape of the side panels 2, enabling lateral insertion between the side panels 2 and the main panel 3. The lower surface of the top panel 4 is provided with a mounting groove D41, the shape of which corresponds to the upper edge of the main panel 3 and the upper edge of the side panels 2, enabling quick installation of the top panel 4. One of the main panels 3 is movably connected to a cabinet door 7 via a hinge. Through the interlocking multi-point insertion and cooperation of the main panel 3, side panels 2, and top panel 4, the overall rigidity and vibration resistance of the cabinet are ensured, preventing components from loosening.

[0024] To further improve the design, a snap-fit ​​structure 5 is provided within the mounting groove C32. This snap-fit ​​structure 5 provides mechanical locking, preventing accidental displacement of the side panel 2 under vibration or external force, thus enhancing the overall safety of the cabinet. The edge of the side panel 2 is provided with a sliding groove 24 that adapts to the snap-fit ​​structure 5. The snap-fit ​​structure 5 can slide within the sliding groove 24, allowing the side panel 2 to be easily inserted or removed through sliding motion, preventing jamming.

[0025] Further improvements include a locking protrusion E22 near the supporting protrusion B21 on the side plate 2. The locking protrusion E22 and the supporting protrusion B21 form a mounting groove E23, the shape of which is adapted to the base 1. The locking protrusion E22 is equipped with a locking structure 5, and the base 1 has an opening A13 adapted to the locking structure 5. The locking protrusion E22 restricts the movement of the base 1 from both vertical and horizontal directions, preventing the base 1 from tilting upwards and enhancing its stability. The locking structure 5 on the locking protrusion E22 securely fixes the base 1, ensuring stable and reliable assembly. The base 1 has an opening A13 adapted to the locking structure 5. Furthermore, placing the locking structure 5 on the locking protrusion E22 means that the locking structure 5 is located inside the cabinet, making it less susceptible to external environmental interference or external forces that could cause it to loosen, further improving stability.

[0026] To further improve the design, the top plate 4 is provided with a snap-fit ​​structure 5 near the front plate 3, and the front plate 3 is provided with an opening B33 that corresponds to the snap-fit ​​structure 5. During assembly, the snap-fit ​​structure 5 and the opening B33 cooperate to effectively limit the relative displacement between the front plate 3 and the top plate 4, so that the front plate 3 and the top plate 4 can obtain a good and stable fit and are not easy to loosen.

[0027] like Figures 5 to 6 As shown, the snap-fit ​​structure 5 includes a mounting cavity 51, a pin 52 disposed within the mounting cavity 51, and a spring 53 sleeved on the pin 52. A retaining ring 54 is also provided at the lower end of the mounting cavity 51 to block the spring 53. The retaining ring 54 prevents the spring 53 from falling out from the lower end, allowing the pin 52 to move axially within the mounting cavity 51. The spring 53 provides continuous elastic force, and the retaining ring 54, under the elastic force of the spring 53, constantly attempts to push the pin 52 outward. During installation, the pin 52 is pushed into the mounting cavity 51 by external force; once the external force disappears, the spring 53 automatically springs the pin 52 back to its original or set extended position. This ensures that the structure automatically remains in the extended state when not in operation and allows for easy switching between the extended and retracted states without tools. During assembly, there is no need to manually fix the pin 52; during disassembly, simply pulling out the pin 52 releases the lock, improving operational efficiency.

[0028] To further improve the design, the end of the pin 52 is provided with a guide slope 521; the head of the pin 52 is provided with a limiting protrusion 522. The limiting protrusion 522 is used to restrict the rotation of the pin 52, so that the guide slope 521 can face the direction in which other components are installed. During installation, the component entering will contact the guide slope 521, and under the action of the slope, it can easily push the pin 52 to retract, thereby reducing assembly resistance and making installation easier.

[0029] Further improvements include a plurality of liftable threaded fixing feet 6 on the lower surface of the base 1. The cabinet is installed within the support surface formed by the threaded fixing feet 6, allowing the threaded fixing feet 6 to provide good support for the cabinet, making the appliance stable and reliable. During installation, the fixing feet 6 are used to raise the base 1 to a suitable height for convenient installation. In use, the fixing feet 6 can press firmly against the ground, providing rigid support and a good fixing effect to prevent the cabinet from sliding. Combined with casters 211, users can easily switch between mobile and fixed states, enhancing the versatility of the cabinet. In addition, the fixing feet 6 can extend to different degrees, allowing the cabinet to remain level even on inclined or irregular ground.

[0030] To further improve the design, an installation ramp 121 is provided at the opening of the support groove B12. The installation ramp 121 is used to guide the support protrusion B21 during the installation of the side plate 2, reducing the difficulty of alignment and allowing the support protrusion B21 to enter the support groove B12 quickly and smoothly, thus shortening the installation time.

[0031] Working principle of this utility model

[0032] During handling, such as Figure 7 As shown, the main plate 3 can be secured to the side plate via the locking protrusion E, allowing workers to easily and quickly move both the main plate 3 and the side plate 2 simultaneously. During assembly, the fixing feet 6 on the lower end face of the base 1 can be extended to a height compatible with the support protrusion B21. The side plate 2, equipped with the support protrusion B21 and casters 211, can be easily pushed to both sides of the base 1, allowing the support protrusion B21 to engage with the support groove B12. As the support protrusion B21 is pushed in, the base 1 engages with the mounting groove E23 on the side plate 2. During this process, the base 1 pushes open the pin 52 in the locking structure 5, and after it is in place, the pin 52 springs back under the action of the spring 53, locking the base 1 in the mounting groove E23. Next, the mounting protrusion A31 on the lower surface of the main plate 3 is inserted into the slot A11 of the base 1. At this time, the mounting grooves C32 on both sides of the main plate 3 will engage with the edges of the side plate 2. The snap-fit ​​structure 5 inside the mounting slot C32 can snap and lock with the sliding groove 24 on the edge of the side plate 2. Finally, align the mounting slot D41 of the top plate 4 with the upper edges of the front plate 3 and the side plate 2 from the top and snap it off to complete the assembly.

[0033] During disassembly, simply pull out the pin 52 of the relevant locking structure 5 to release the lock of the corresponding part, thus making it easy and convenient to disassemble the cabinet.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A DC power supply cabinet, comprising a base (1), wherein a cabinet is disposed on the upper end of the base (1), the cabinet comprising a side panel (2) and a front panel (3), and a top panel (4) disposed on the upper end of the cabinet, characterized in that: The lower surface of the main plate (3) is provided with a mounting protrusion A (31), and the base (1) is provided with a slot A (11) that is compatible with the mounting protrusion A (31); the lower end face of the side plate (2) is provided with a support protrusion B (21), and the base (1) is provided with a support groove B (12) that is compatible with the support protrusion B (21). A caster (211) is provided below the support protrusion B (21). Both sides of the main plate (3) are provided with mounting grooves C (32) that are compatible with the shape of the side plate (2). The lower surface of the top plate (4) is provided with a mounting groove D (41), and the shape of the mounting groove D (41) is compatible with the upper edge of the main plate (3) and the upper edge of the side plate (2). A cabinet door (7) is movably connected to one of the main plates (3) via a hinge.

2. The DC power supply cabinet according to claim 1, characterized in that: The mounting groove C (32) is provided with a snap-fit ​​structure (5), and the edge of the side plate (2) is provided with a sliding groove (24) adapted to the snap-fit ​​structure (5).

3. A DC power supply cabinet according to claim 1, characterized in that: The side plate (2) is provided with a locking protrusion E (22) near the support protrusion B (21). The locking protrusion E (22) and the support protrusion B (21) form an installation groove E (23). The shape of the installation groove E (23) is adapted to the base (1). The locking protrusion E (22) is provided with a locking structure (5). The base (1) is provided with an opening A (13) adapted to the locking structure (5).

4. A DC power supply cabinet according to claim 1, characterized in that: The top plate (4) is provided with a snap-fit ​​structure (5) near the front plate (3), and the front plate (3) is provided with an opening B (33) adapted to the snap-fit ​​structure (5).

5. A DC power supply cabinet according to any one of claims 2 or 4, characterized in that: The snap-fit ​​structure (5) includes a mounting cavity (51), a pin (52) disposed in the mounting cavity (51), and a spring (53) sleeved on the pin (52). The lower end of the mounting cavity (51) is also provided with a retaining ring (54) for blocking the spring. The pin (52) can move axially within the mounting cavity (51).

6. A DC power supply cabinet according to claim 5, characterized in that: The end of the pin (52) is provided with a guide slope (521); the head of the pin (52) is provided with a limiting protrusion (522).

7. A DC power supply cabinet according to claim 1, characterized in that: The lower surface of the base (1) is provided with several liftable threaded fixing feet (6).

8. A DC power supply cabinet according to claim 1, characterized in that: The support groove B (12) is provided with an installation slope (121) at the groove opening.

Images