An internal modular mounting structure for an electrical distribution cabinet
By designing modular single-unit structures and limiting and unlocking components, the problem of scattered installation of components in the power distribution cabinet is solved, enabling flexible combination and independent management, and improving installation efficiency and space utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN SONGYANG ELECTRIC POWER ENG CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-06-02
AI Technical Summary
The components in the existing power distribution cabinet are installed in a scattered and irregular manner, which makes it difficult to manage in a modular way, occupies a lot of space and cannot be flexibly combined.
It adopts a modular single-unit structure, and the frame can be quickly assembled and disassembled through limiting components and unlocking components. Combined with the detachable design of the door, it can achieve flexible combination and independent management of modular units.
It improves the installation efficiency of the power distribution cabinet, saves space, and facilitates the flexible combination and independent management of components.
Smart Images

Figure CN224318949U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the installation structure of a power distribution cabinet, specifically a modular installation structure inside a power distribution cabinet. Background Technology
[0002] Existing power distribution cabinets mostly use a fixed-size box, and then install a number of components inside the box. The installation of these components is often scattered and irregular, which makes it difficult to manage in a modular way. Even if fewer components are needed, the space occupied cannot be reduced accordingly, and they cannot be flexibly combined as needed. Utility Model Content
[0003] I. Technical problems to be solved
[0004] The technical problem this utility model aims to solve is that the components inside the distribution box are installed in a scattered and irregular manner, which is not conducive to modular management, and the components occupy a large space due to the need for flexible combination as required.
[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a modular installation structure inside a power distribution cabinet, including a modular unit, wherein the modular unit includes a frame that runs through the front and rear, and a plurality of first connection holes and second connection holes are evenly distributed around the frame. The first connection holes and second connection holes are arranged opposite to each other, and adjacent frames are limited and locked together by limiting members passing through the first connection holes and second connection holes. An unlocking component that can drive the limiting member to unlock is provided on the first connection hole. A back plate is connected to the back side of the frame, and a door that cooperates with the frame is detachably hinged to the front side of the frame.
[0006] Furthermore, both the first and second connecting holes are stepped holes. The limiting component includes a limiting plate that mates with the second connecting hole. Limiting rods are connected to both sides of the limiting plate, with a gap between the limiting rods. A limiting block is connected to the outer side of each limiting rod. The limiting block is a triangular structure with an outward-facing bevel. The limiting block engages with the stepped hole on the first connecting hole for limiting. By driving the limiting rod through the second connecting hole, the limiting block is first driven by the stepped hole on the second connecting hole, causing the limiting rods on both sides to move closer together, narrowing the gap, until the limiting rod passes through the second connecting hole and extends into the first connecting hole. The limiting block at the end of the limiting rod is no longer constrained by the stepped holes on the first and second connecting holes and moves away from each other to reset. The stepped engagement between the limiting block and the first connecting hole achieves limiting and locking of adjacent frames.
[0007] Furthermore, the unlocking component includes a cap ring that mates with the first connecting hole. The free end of the cap ring is connected to several locking protrusions. A pressure ring is provided inside the cap ring by means of the locking protrusions. The bottom end of the pressure ring abuts against the outside of the limiting block. A first spring is connected between the pressure ring and the step on the first connecting hole. The first spring is sleeved on the outside of the limiting block. By pressing the pressure ring, the pressure ring is subjected to downward force. At this time, the first spring is compressed and stores force. The bottom end of the pressure ring abuts against the inclined surface of the limiting block, driving the limiting block to move the limiting rod closer to each other until the limiting block no longer limits the first connecting hole. The limiting rod can then drive the limiting block to withdraw from the first connecting hole and release the limitation.
[0008] Furthermore, the first connecting hole is circumferentially connected with a limiting groove, and the cap ring is circumferentially connected with a limiting ring. The limiting ring and the limiting groove cooperate to limit the cap ring. First, the cap ring is placed on the step inside the first connecting hole, and the cap ring is limited to the first connecting hole by the cooperation of the limiting ring and the limiting groove.
[0009] Furthermore, the frame is provided with several wire holes on both sides, which facilitates the electrical connection of components installed in the modular unit.
[0010] Furthermore, the frame has rotating grooves at the top and bottom on the side away from the back panel. A mounting plate is connected to the door, and an L-shaped pull rod is slidably connected through the mounting plate. A second spring is connected between the pull rod and the mounting plate. The second spring is sleeved on the outside of the pull rod. The other end of the pull rod passes through the door and engages with the rotating groove at its end. By pulling the pull rod, the pull rod retracts downward into the door. At this time, the second spring is compressed and stores force, releasing the pull rod. Under the reset action of the second spring, the top end of the pull rod engages with the rotating groove to achieve a hinged installation between the door and the frame.
[0011] The advantages of this utility model compared with the prior art are as follows:
[0012] Modular units can be quickly assembled into different installation structures as needed using limiting components, while the unlocking components facilitate the rapid removal of modular units that are no longer needed, thereby improving the installation efficiency of the distribution cabinet; the door design allows modular units to maintain relative independence while ensuring the overall installation structure. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the internal modular installation structure of a power distribution cabinet according to this utility model.
[0014] Figure 2 This is a side sectional view of a modular installation structure inside a power distribution cabinet according to this utility model.
[0015] Figure 3This is a schematic diagram of the main cross-section of a modular installation structure inside a power distribution cabinet according to this utility model.
[0016] Figure 4 yes Figure 3 A magnified structural diagram of A in the diagram.
[0017] Figure 5 This is a half-sectional structural diagram of a modular installation structure inside a power distribution cabinet according to this utility model.
[0018] Figure 6 yes Figure 5 A magnified structural diagram of B in the diagram.
[0019] As shown in the figure: 1. Frame, 2. First connecting hole, 3. Second connecting hole, 4. Back plate, 5. Door stop, 6. Limiting plate, 7. Limiting rod, 8. Gap, 9. Limiting block, 10. Cap ring, 11. Clip protrusion, 12. Pressure ring, 13. First spring, 14. Limiting ring, 15. Wire hole, 16. Rotary groove, 17. Mounting plate, 18. Pull rod, 19. Second spring. Detailed Implementation
[0020] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. Example
[0021] Combined with appendix Figure 1 , Figure 2 , Figure 3 and Figure 4 A modular installation structure for an internal distribution cabinet includes a modular unit. The modular unit includes a frame 1 that runs through the front and back. The frame 1 has several first connecting holes 2 and second connecting holes 3 evenly distributed around its circumference. The first connecting holes 2 and second connecting holes 3 are both stepped holes. The first connecting holes 2 and second connecting holes 3 are arranged opposite to each other. Adjacent frames 1 are limited and locked together by limiting members passing through the first connecting holes 2 and second connecting holes 3. The limiting member includes a limiting plate 6, which cooperates with the second connecting holes 3. Limiting rods 7 are respectively connected to both sides of the limiting plate 6. A gap 8 is provided between the limiting rods 7. A limiting block 9 is connected to the outer side of the limiting rods 7. The limiting block 9 is a triangular structure with the inclined surface facing outward. The limiting block 9 cooperates with the stepped holes on the first connecting holes 2 for limiting.
[0022] The combination of modular units and limiting components facilitates the rapid and arbitrary combination of modular units, making the distribution cabinet more flexible and saving space.
[0023] Combined with appendix Figure 4 The first connecting hole 2 is provided with an unlocking component that can drive the limiting member to unlock. The unlocking component includes a cap ring 10 that cooperates with the first connecting hole 2. The first connecting hole 2 is circumferentially connected with a limiting groove. The cap ring 10 is connected with a limiting ring 14 on its outer periphery. The limiting ring 14 cooperates with the limiting groove to limit the cap ring 10. The free end of the cap ring 10 is connected with a plurality of locking protrusions 11. The cap ring 10 is provided with a pressure ring 12 that is limited by the locking protrusions 11. The bottom end of the pressure ring 12 abuts against the outside of the limiting block 9. A first spring 13 is connected between the pressure ring 12 and the step on the first connecting hole 2. The first spring 13 is sleeved on the outside of the limiting block 9.
[0024] The unlocking components facilitate the quick disassembly of assembled modular units, enabling their reassembly and recycling.
[0025] Combined with appendix Figure 5 and Figure 6 The frame 1 has a back plate 4 connected to its back side. The front side of the frame 1 is detachably hinged with a door 5 that cooperates with the frame 1. The top and bottom of the frame 1 away from the back plate 4 have rotating grooves 16. The door 5 is connected to a mounting plate 17. An L-shaped pull rod 18 is slidably connected through the mounting plate 17. A second spring 19 is connected between the pull rod 18 and the mounting plate 17. The second spring 19 is sleeved on the outside of the pull rod 18. The other end of the pull rod 18 passes through the door 5 and cooperates with the rotating groove 16 at its end.
[0026] The detachable design of the door facilitates the closure of individual modular units, forming a relatively independent component installation space. This helps maintain the relative independence of the components. The door can be a transparent structure or have a viewing window to facilitate observation of the working status of the internal components. Example
[0027] Based on Example 1, and in conjunction with Appendix Figure 1 The frame 1 has several wire holes 15 connected to each other on both sides.
[0028] The cable pass-through hole 15 facilitates the electrical connection of components installed within the modular unit and also helps to organize the wiring, preventing cable crossings and adding burden to the cable pass-through.
[0029] The specific usage method is as follows:
[0030] Modular units can be quickly assembled into different installation structures as needed using limiting components. By driving the limiting rod 7 through the second connecting hole 3, the limiting block 9 is first driven by the stepped hole on the second connecting hole 3, causing the limiting rods 7 on both sides to move closer to each other, narrowing the gap 8, until the limiting rod 7 passes through the second connecting hole 3 and extends into the first connecting hole 2. The limiting block 9 at the end of the limiting rod 7 is no longer constrained by the stepped holes on the first connecting hole 2 and the second connecting hole 3 and moves away from each other to reset. The limiting block 9 and the stepped engagement of the first connecting hole 2 achieve the limiting and locking of the adjacent frame 1.
[0031] The unlocking component is designed to facilitate the quick removal of modular units that are no longer needed. First, the cap ring 10 is placed on the step inside the first connecting hole 2. The cap ring 10 is limited to the first connecting hole 2 by cooperating with the limiting groove through the limiting ring 14. Then, the first spring is placed inside the cap ring. Next, the pressure ring is placed on the first spring and the first spring is sleeved on the outside of the pressure ring. Finally, the locking protrusion is bent to limit the pressure ring.
[0032] When the modular unit is dismantled, pressing the pressure ring 12 causes it to be under downward force. At this time, the first spring 13 is compressed and stores energy. The bottom end of the pressure ring 12 pushes against the inclined surface of the limiting block 9, driving the limiting block 9 to move the limiting rod 7 closer to each other until the limiting block 9 no longer limits the first connecting hole 2. The limiting rod 7 can then drive the limiting block 9 to withdraw from the first connecting hole 2 and release the limit, thereby improving the installation efficiency of the distribution cabinet.
[0033] The design of the door 5 allows the modular unit to remain relatively independent while ensuring the overall installation structure. By pulling the lever 18, the lever 18 retracts downward into the door 5. At this time, the second spring 19 is compressed and stored, releasing the lever 18. Under the reset action of the second spring 19, the top of the lever 18 cooperates with the rotating groove 16 to achieve the hinged installation between the door 5 and the frame 1.
[0034] 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.
[0035] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.
[0036] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A modular installation structure for the internal components of a power distribution cabinet, comprising modular units, characterized in that: The modular unit includes a frame (1) that runs through the front and back. The frame (1) is provided with a plurality of first connecting holes (2) and second connecting holes (3) evenly distributed around its circumference. The first connecting holes (2) and second connecting holes (3) are arranged opposite to each other. Adjacent frames (1) are limited and locked together by limiting members passing through the first connecting holes (2) and second connecting holes (3). The first connecting hole (2) is provided with an unlocking component that can drive the limiting member to unlock. The back side of the frame (1) is connected with a back plate (4). The front side of the frame (1) is detachably hinged with a door (5) that cooperates with the frame (1).
2. The modular installation structure inside a power distribution cabinet according to claim 1, characterized in that: The first connecting hole (2) and the second connecting hole (3) are both stepped holes. The limiting member includes a limiting plate (6). The limiting plate (6) cooperates with the second connecting hole (3). Limiting rods (7) are respectively connected to both sides of the limiting plate (6). There is a gap (8) between the limiting rods (7). A limiting block (9) is connected to the outer side of the limiting rods (7). The limiting block (9) is a triangular structure with the inclined surface facing outward. The limiting block (9) cooperates with the stepped hole on the first connecting hole (2) for limiting.
3. The modular installation structure inside a power distribution cabinet according to claim 2, characterized in that: The unlocking component includes a cap ring (10) that mates with the first connecting hole (2). The free end of the cap ring (10) is provided with a plurality of latching protrusions (11). A pressure ring (12) is provided inside the cap ring (10) by means of the latching protrusions (11). The bottom end of the pressure ring (12) abuts against the outside of the limiting block (9). A first spring (13) is provided between the pressure ring (12) and the step on the first connecting hole (2). The first spring (13) is sleeved on the outside of the limiting block (9).
4. The modular installation structure inside a power distribution cabinet according to claim 3, characterized in that: The first connecting hole (2) is circumferentially connected with a limiting groove, and the cap ring (10) is circumferentially connected with a limiting ring (14). The limiting ring (14) cooperates with the limiting groove to limit the cap ring (10).
5. The modular installation structure inside a power distribution cabinet according to claim 1, characterized in that: The frame (1) has several wire holes (15) connected to each other on both sides.
6. The modular installation structure inside a power distribution cabinet according to claim 1, characterized in that: The frame (1) has a rotating groove (16) on the top and bottom of the side away from the back plate (4). The door (5) is connected to an mounting plate (17). An L-shaped pull rod (18) is slidably connected through the mounting plate (17). A second spring (19) is connected between the pull rod (18) and the mounting plate (17). The second spring (19) is sleeved on the outside of the pull rod (18). The other end of the pull rod (18) passes through the door (5) and cooperates with the rotating groove (16) at the end.