Rapid assembly type distribution box
The modular design and reinforced components of the quick-assembly distribution box solve the problems of complex installation and inconvenient maintenance of traditional distribution boxes, simplifying installation, improving stability and sealing, and ensuring system reliability and safety.
Patent Information
- Application Number
- CN202520087541.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-01-15
AI Technical Summary
Traditional distribution boxes are complex to install and prone to errors. When repairing internal components, multiple parts need to be disassembled. The connection method is simple and there is a risk of loosening, which affects maintenance efficiency and reliability.
The modular design of the side panels, back panels, and sealing plates, combined with guide blocks, limiting sleeves, and reinforcing components, enables rapid assembly and stable connection. Equipped with an inlet radiator, an outlet radiator, and heating pipes, it ensures internal dryness and temperature control. The contact strip forms a sealing ring, providing additional sealing protection.
It simplifies on-site installation procedures, improves structural stability and sealing, reduces maintenance complexity, ensures system reliability and safety, and allows for individual replacement or repair of components without affecting the overall power supply system.
Smart Images

Figure CN223871881U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical engineering design, and in particular to a quick-assembly distribution box. Background Technology
[0002] The installation of traditional distribution boxes usually requires complex wiring and connection work on site, which is not only time-consuming but also prone to errors. However, modular distribution boxes, through modular design and pre-assembled components, can simplify the on-site installation steps and shorten the installation time.
[0003] For example, Chinese patent CN219106835U discloses a modular assembly distribution box, aiming to solve the problem that existing distribution boxes are mostly integrated installations. When a distribution box is damaged and internal repairs are needed, the limited space structure of the integrated distribution box affects the repair process and leads to slow progress. This patent mainly utilizes the design of springs and limiting posts to achieve a quick and tight connection between the first and second protective shells. When connected, the limiting post enters the circular through hole under the action of the spring and is fixed. When disassembly is required, the movable block is lifted to disengage the limiting post from the through hole, thereby realizing disassembly and assembly.
[0004] However, the aforementioned patent mainly uses springs and limiting posts to achieve quick assembly and disassembly of the first and second protective shells, without further optimizing the modular design of the internal components. This means that if internal electrical components need to be replaced or repaired, it may still be necessary to disassemble the entire distribution box or multiple parts, increasing operational complexity and time costs. In addition, the patent relies on springs and limiting posts to achieve the connection between the protective shells. Although this design can provide quick assembly and disassembly to a certain extent, its connection method is relatively simple, and there may be a risk of loosening or failure after long-term use. Utility Model Content
[0005] In order to overcome the shortcomings of the existing technology, this utility model provides a quick-assembly distribution box.
[0006] A quick-assembly distribution box includes:
[0007] The side panels are symmetrical in two and serve as the main support components. Positioning components are symmetrically arranged on the outside of one side panel, and positioning holes are opened in the positioning components.
[0008] The door panel is hinged to the outside of each positioning component on one side panel. A hinge is provided at the hinge joint between the door panel and the positioning component. The hinge shaft is also provided with a positioning hole. The positioning component matches the positioning hole of the hinge. The positioning component and the positioning hole of the hinge rotate together and are provided with a bent insert rod. The end of the insert rod passing through both is a through part, and a locking ring is threaded on the through part. A safety lock is provided between the door panel and the front part of the other side panel.
[0009] There are also two symmetrical sealing plates, which are respectively snapped into the top and bottom of the two side panels. The rear end of the door panel covers the two side panels and the front end of the two sealing plates, forming a seal.
[0010] The back plate, as an auxiliary support component, is snapped between the rear parts of the two side plates, and the top and bottom of the back plate are snapped into the interior of the corresponding sealing plate. A mounting bracket is provided on the upper part of the back plate, and a winding bracket is provided on the lower part of the back plate.
[0011] Several sealing strips are provided, which are glued to the inner seams of the back panel, sealing plate and side panel.
[0012] As a further preferred embodiment, it also includes guide blocks and limiting sleeves. Guide blocks protruding outward are symmetrically arranged on the side plate and sealing plate, and limiting sleeves adapted to the protruding parts of the guide blocks are symmetrically arranged on the back plate. The side plate and sealing plate are engaged with the back plate through the protruding parts of the guide blocks, and reinforcement components formed by the auxiliary engagement process are provided on the back plate, sealing plate and side plate.
[0013] As a further preferred embodiment, the reinforcement components include locking blocks, mounting bases, wedge rods, springs, and release plates. Locking blocks are provided at the edges of the adjacent surfaces in the middle of the side plates and sealing plates, and the ends of the locking blocks are all designed in a hook shape. Mounting bases are provided at the edge of the middle of the front end of the back plate. Each mounting base has a protruding and bent limiting part on both sides of its front part. A wedge rod that is slidably and rotatably installed in each mounting base and hooks onto the end of the locking block is provided. A spring is provided between the wedge rod and the corresponding mounting base. The end of each wedge rod passes through the interior of the corresponding mounting base. A release plate is provided at the part of each wedge rod that passes through the corresponding mounting base. The release plate is located at the front of the mounting base, and both ends of the release plate abut against the limiting part of the mounting base.
[0014] As a further preferred embodiment, it also includes contact strips, with four contact strips respectively disposed on the front end of the back panel, sealing plate and side panel, and the ends of each contact strip abutting against each other to form a limiting ring, while the inner rear part of the door panel is in close contact with the forming limiting ring.
[0015] As a further preferred option, it also includes an intake radiator and an exhaust radiator. The intake radiator is embedded in the middle of the upper sealing plate, and the exhaust radiator is embedded in the middle of the lower sealing plate. Dust filters are provided inside the intake or exhaust ends of both the intake and exhaust radiators.
[0016] As a further preferred option, a heating element is also included, with the heating element installed at the bottom of the upper sealing plate, corresponding to the area below the air intake radiator.
[0017] As a further preferred option, it also includes an observation window and a protective canopy. An observation window is provided in the upper part of the door panel, and an arc-shaped protective canopy is provided on the top of the upper sealing plate, which covers the air intake radiator below.
[0018] As a further preferred option, gaskets are also included, with auxiliary distribution box positioning gaskets provided on both outer sides of the rear of the sealing plate.
[0019] The beneficial effects of this utility model are: 1. The modular design of the main structural components such as side plates, back plates, and sealing plates makes on-site installation simple and quick; the pre-installed reinforcing components, along with the guide blocks and limit sleeves that are automatically triggered during assembly, ensure the stability and reliability of the structure and reduce additional assembly steps.
[0020] 2. This utility model uses four contact strips that abut against each other to form a limiting ring, providing additional sealing protection when the door is closed, preventing external moisture and dust from entering the distribution box, thus improving the reliability and lifespan of the system.
[0021] 3. This utility model effectively reduces the internal temperature through the air circulation path formed by the air intake radiator and the air exhaust radiator, avoiding safety hazards caused by overheating; the heating element starts in a low temperature and humid environment, preventing condensation from accumulating, maintaining a dry internal environment, and improving the safety of the system.
[0022] 4. This utility model, through the modular design of the main structural components such as the side plate, back plate, and sealing plate, allows for the replacement or repair of a single component without affecting the function of other parts or the overall power supply system's operating progress, greatly facilitating subsequent maintenance and repair work. Attached Figure Description
[0023] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0024] Figure 2 This is a three-dimensional structural diagram of the hinge, sealing plate, and back plate of this utility model.
[0025] Figure 3 This is a three-dimensional structural diagram of the sealing strip, guide block, and limiting sleeve of this utility model.
[0026] Figure 4 This is a three-dimensional structural diagram of the guide block, wedge rod, and spring of this utility model.
[0027] Figure 5 This is a three-dimensional structural diagram of the air inlet fan, air outlet fan, and heating tube of this utility model.
[0028] Figure 6 This is an exploded view of the side plate, sealing plate, and back plate of this utility model.
[0029] Figure 7 This is a three-dimensional structural diagram of the present invention.
[0030] Figure 8 This is a three-dimensional structural diagram of the present invention.
[0031] Wherein: 1: Side panel, 100: Positioning component, 101: Positioning hole, 2: Door panel, 20: Hinge, 21: Insert rod, 22: Locking ring, 3: Sealing plate, 4: Back panel, 40: Contact strip, 41: Mounting bracket, 42: Winding bracket, 5: Sealing strip, 6: Guide block, 7: Limit sleeve, 8: Locking block, 9: Mounting seat, 10: Wedge rod, 11: Spring, 12: Loosening plate, 13: Inlet radiator, 130: Outlet radiator, 14: Heating tube, 15: Observation window, 16: Safety lock, 17: Protective canopy, 18: Gasket. Detailed Implementation
[0032] The technical solution will be further described below with reference to specific embodiments. It should be noted that the terms "up," "down," "left," and "right" used in this document refer only to the position of the structure shown in the corresponding drawings. The serial numbers assigned to components in this document, such as "first," "second," etc., are only used to distinguish the described objects and have no sequential or technical meaning. Unless otherwise specified, terms such as "connection" and "linkage" in this application include both direct and indirect connections (linkages).
[0033] Example: A quick-assembly distribution box, such as Figures 1-8 As shown, it includes:
[0034] Side plate 1, there are two symmetrical ones, which serve as the main support to provide stability and sturdiness. Positioning elements 100 are symmetrically arranged on the outside of one side plate 1, and positioning holes 101 are opened in the positioning elements 101.
[0035] Door panel 2 is hinged to the outside of each positioning member 100 on one side panel 1 to protect the internal components of the distribution box and prevent unauthorized access. A hinge 20 is provided at the hinge joint between door panel 2 and positioning member 100. A positioning hole 101 is also provided in the pivot of hinge 20. Positioning member 100 and positioning hole 101 of hinge 20 are matched. Positioning member 100 and positioning hole 101 of hinge 20 rotate together and are provided with a bent insert rod 21. The end of insert rod 21 that passes through both is a through part, and a locking ring 22 is threaded on the through part. It is connected to positioning member 100 on side panel 1 through hinge 20 and fixed by insert rod 21 and locking ring 22 to ensure that door panel is closed tightly. A safety lock 16 is provided between door panel 2 and the front part of the other side panel 1. Safety lock 16 adds extra security.
[0036] The sealing plate 3 also has two symmetrical ones, which are respectively snapped into the top and bottom of the two side plates 1. The rear end of the door plate 2 covers the two side plates 1 and the front end of the two sealing plates 3, forming a seal to prevent moisture, dust and other substances from entering the distribution box and protect the electrical components.
[0037] The back plate 4, as an auxiliary support component, enhances the stability of the overall structure of the distribution box. It is snapped between the rear parts of the two side plates 1, and the top and bottom of the back plate 4 are snapped into the interior of the corresponding sealing plate 3. The upper part of the back plate 4 is provided with a mounting bracket 41, and the lower part of the back plate 4 is provided with a winding bracket 42. The mounting bracket 41 and the winding bracket 42 provide space for the installation and arrangement of electrical equipment and wires.
[0038] Several sealing strips 5 are provided and are respectively glued to the inner seams of the back plate 4, sealing plate 3 and side plate 1, which can improve the overall sealing performance of the distribution box and prevent the intrusion of external moisture and dust.
[0039] like Figure 1-8 As shown, it also includes guide blocks 6 and limiting sleeves 7. Guide blocks 6 are symmetrically arranged on the side plate 1 and the sealing plate 3, and limiting sleeves 7 adapted to the protrusions of the guide blocks 6 are symmetrically arranged on the back plate 4. The guide blocks 6 and the limiting sleeves 7 cooperate to ensure precise snap-fit between the side plate 1, the sealing plate 3 and the back plate 4, simplifying the assembly process and enhancing the connection firmness. The side plate 1 and the sealing plate 3 are snap-fitted to the back plate 4 through the protrusions of the guide blocks 6, and reinforcement components formed by the auxiliary snap-fit process are provided on the back plate 4, the sealing plate 3 and the side plate 1.
[0040] like Figures 4-7As shown, the reinforcement assembly includes a locking block 8, a mounting base 9, a wedge rod 10, a spring 11, and a release plate 12. Locking blocks 8 are provided at the edges of the adjacent surfaces in the middle of the side plate 1 and the sealing plate 3, providing a basis for mechanical locking. The ends of the locking blocks 8 are all hook-shaped. Mounting bases 9 are provided at the edge of the middle front end of the back plate 4. Each mounting base 9 has protruding, bent limiting portions on both sides of its front part. A wedge rod 10, which slides and rotates within each mounting base 9, hooks onto the end of the locking block 8. A spring 11 is provided between the wedge rod 10 and the corresponding mounting base 9. The wedge rod 10 can retract inward when subjected to external pressure (such as the thrust from the guide block 6), and then spring back. The spring 11 resets the wedge rod 10 under the action of the spring and locks it with the locking block 8. The spring 11 provides the necessary elastic restoring force. When the wedge rod 10 moves inward due to the push of the guide block 6, the spring 11 is compressed. After the external pressure is removed, the spring 11 releases energy to restore the wedge rod 10 to its initial position. The ends of each wedge rod 10 penetrate the interior of the corresponding mounting base 9. Each part of the wedge rod 10 that penetrates the corresponding mounting base 9 is provided with a release plate 12. The release plate 12 is located at the front of the mounting base 9, and both ends of the release plate 12 abut against the limiting part of the mounting base 9. The release plate 12 serves as an adjustment component, allowing the operator to control the unlocking process of the wedge rod 10 by simple rotation and pulling.
[0041] like Figure 3 , Figure 4 , Figure 7 and Figure 8 As shown, it also includes contact strips 40. There are four contact strips 40, which are respectively set at the front end of the back plate 4, the sealing plate 3 and the side plate 1. The ends of each contact strip 40 abut against each other and form a limiting ring. The inner rear part of the door plate 2 is in close contact with the limiting ring formed, thereby enhancing the sealing performance of the distribution box and preventing external moisture and dust from entering.
[0042] like Figure 1-8 As shown, it also includes an air intake radiator 13 and an air exhaust radiator 130. The air intake radiator 13 is embedded in the middle of the upper sealing plate 3, and the air exhaust radiator 130 is embedded in the middle of the lower sealing plate 3. Dustproof screens are provided inside the air intake or air exhaust ends of the air intake radiator 13 and the air exhaust radiator 130. The air intake radiator 13 and the air exhaust radiator 130 form an air circulation path to help maintain a suitable working temperature inside the distribution box, while the dustproof screens effectively prevent dust from entering and protect the internal components.
[0043] like Figure 6 As shown, it also includes a heating tube 14. The heating tube 14 is installed at the bottom of the upper sealing plate 3. The heating tube 14 is located below the air intake radiator. The heating tube 14 is used to prevent condensation from accumulating when operating in humid or cold environments, keep the inside of the distribution box dry, and improve the reliability and lifespan of the system.
[0044] like Figure 1 and Figure 2 As shown, it also includes an observation window 15 and a protective canopy 17. An observation window 15 is provided in the upper part of the door panel 2, which makes it easy to observe the internal situation of the distribution box without opening the door panel 2. The top of the upper sealing plate 3 is provided with an arc-shaped protective canopy 17, which covers the air intake radiator 13 below. The protective canopy 17 can reduce the impact of rain or other external factors.
[0045] like Figure 1 and Figure 8 As shown, it also includes gaskets 18. Gaskets 18 are provided on both outer sides of the rear part of the sealing plate 3 to assist in positioning the distribution box. The gaskets 18 assist in positioning the distribution box to ensure accurate installation position, and may also help adjust the horizontal or verticality of the distribution box.
[0046] During assembly, first place the two symmetrical side plates 1 parallel to each other, then push the back plate 4 towards the two side plates 1 until the guide block 6 is fully embedded in the limiting sleeve 7 on the back plate 4, achieving the snap-fit between the back plate 4 and the side plates 1. As the back plate 4 is pushed forward, the guide block 6 on the side plates 1 will trigger the reinforcing components on the back plate 4. When the guide block 6 enters the limiting sleeve 7, it will push the wedge rod 10 to move, and the spring 11 will be compressed, thereby automatically locking the guide block 6, completing the reinforcement and positioning. At this time, the back plate 4, as an auxiliary support component, enhances the stability of the overall structure. The top sealing plate 3 is snapped onto the corresponding positions of the two side plates 1 and the back plate 4 from above, sealing the bottom. Plate 3 is snapped onto the corresponding positions of the two side plates 1 and the back plate 4 from below, ensuring that the entire distribution box forms a closed space. Similarly, the guide block 6 on the sealing plate 3 will also trigger the reinforcing components on the back plate 4 to further enhance the connection strength. The door plate 2 is hinged to the outside of the positioning member 100 of one side plate 1 through the hinge 20, ensuring that it matches the positioning member 100 on the side plate 1. The insertion rod 21 is used to pass through the positioning hole 101 on the hinge 20 and the positioning member 100 in sequence. The locking ring 22 is threaded onto the end of the insertion rod 21 and the locking ring 22 is tightened to fix the insertion rod 21, thereby achieving a stable connection between the door plate 2 and the side plate 1.
[0047] In use, the main power switch is turned on to supply power to the distribution box. When the internal temperature of the distribution box rises, the intake cooling fan 13 located in the middle of the upper sealing plate 3 is activated. The intake cooling fan 13 introduces cooler outside air through the dust filter, which carries away the heat generated by the internal circuit area. After entering the distribution box, the cool air passes through various heat-generating components (such as circuit breakers, contactors, etc.). The heated air becomes lighter and rises naturally, then is discharged through the exhaust cooling fan 130 located in the middle of the lower sealing plate 3, forming effective air convection. The dust filter is installed inside the intake or exhaust end of the intake cooling fan 13 and the exhaust cooling fan 130, effectively blocking the airflow. External dust and particulate matter enter the distribution box, protecting the internal equipment from contamination. If the ambient humidity is high or the temperature is low, condensation may accumulate. In this case, the heating element 14 is activated. After the heating element 14 is activated, it dissipates heat to warm the surrounding air, preventing condensation from forming, maintaining a dry internal environment, and improving the reliability and lifespan of the system. In addition, after the door panel 2 is closed, the four contact strips 40 abut against each other to form a limiting ring, providing additional sealing protection to prevent external moisture and dust from entering. The safety lock 16 ensures that the door panel 2 is closed tightly, preventing unauthorized personnel from opening the distribution box and ensuring the safe operation of the internal electrical equipment.
[0048] Although this disclosure has been described with respect to only a limited number of embodiments, those skilled in the art who benefit from this disclosure will understand that various other embodiments can be devised without departing from the scope of this invention. Therefore, the scope of this invention should be limited only by the appended claims.
Claims
1. A quick-assembly distribution box, characterized in that: Including: The side plate (1) has two symmetrical parts, which serve as the main support components. A positioning component (100) is symmetrically arranged on the outside of one side plate (1), and a positioning hole (101) is opened in the positioning component (100). The door panel (2) is hinged to the outside of each positioning component (100) of one side panel (1). A hinge (20) is provided at the hinge of the door panel (2) and the positioning component (100). A positioning hole (101) is also provided in the pivot of the hinge (20). The positioning component (100) and the positioning hole (101) of the hinge (20) are matched. The positioning component (100) and the positioning hole (101) of the hinge (20) rotate together and are provided with a bent insert (21). The end of the insert (21) that passes through both is a through part, and a locking ring (22) is threaded through the through part. A safety lock (16) is provided between the front of the door panel (2) and the other side panel (1). The sealing plate (3) also has two symmetrical ones, which are respectively snapped into the top and bottom of the two side plates (1). The rear end of the door panel (2) covers the two side plates (1) and the front end of the two sealing plates (3) to form a seal. The back plate (4), as an auxiliary support, is snapped between the rear parts of the two side plates (1), and the top and bottom of the back plate (4) are snapped into the interior of the corresponding sealing plate (3). The upper part of the back plate (4) is provided with a mounting bracket (41), and the lower part of the back plate (4) is provided with a winding bracket (42). Several sealing strips (5) are provided and are respectively glued to the seams of the back plate (4), sealing plate (3) and side plate (1) that are tightly attached to each other.
2. A quick-assembly distribution box according to claim 1, characterized in that: It also includes guide blocks (6) and limiting sleeves (7). Guide blocks (6) protruding outward are symmetrically arranged on the side plate (1) and the sealing plate (3). Limiting sleeves (7) adapted to the protrusions of the guide blocks (6) are symmetrically arranged on the back plate (4). The side plate (1) and the sealing plate (3) are connected to the back plate (4) through the protrusions of the guide blocks (6). Reinforcing components formed by the auxiliary connection process are provided on the back plate (4), the sealing plate (3) and the side plate (1).
3. A quick-assembly distribution box according to claim 2, characterized in that: The reinforcement components include a locking block (8), a mounting base (9), a wedge rod (10), a spring (11), and a release plate (12). Locking blocks (8) are provided at the edges of the adjacent surfaces in the middle of the side plate (1) and the sealing plate (3). The ends of the locking blocks (8) are all designed in a hook shape. Mounting bases (9) are provided at the edges of the middle front end of the back plate (4). Each mounting base (9) has a protruding and bent limiting part on both sides of the front part. The mounting bases (9) are all slidable and rotatable. There is a wedge rod (10) that hooks to the end of the locking block (8). A spring (11) is provided between the wedge rod (10) and the corresponding mounting seat (9). The end of each wedge rod (10) passes through the interior of the corresponding mounting seat (9). A release plate (12) is provided on the part of each wedge rod (10) that passes through the corresponding mounting seat (9). The release plate (12) is located at the front of the mounting seat (9), and both ends of the release plate (12) abut against the limiting part of the mounting seat (9).
4. A quick-assembly distribution box according to claim 3, characterized in that: It also includes contact strips (40), four of which are respectively set at the front end of the back plate (4), the sealing plate (3) and the side plate (1), and the ends of each contact strip (40) abut against each other to form a limiting ring, and the inner rear part of the door panel (2) is in close contact with the limiting ring formed.
5. A quick-assembly distribution box according to claim 4, characterized in that: It also includes an air intake radiator (13) and an air outlet radiator (130). The air intake radiator (13) is embedded in the middle of the upper sealing plate (3), and the air outlet radiator (130) is embedded in the middle of the lower sealing plate (3). Dustproof nets are provided inside the air intake or air outlet of the air intake radiator (13) and the air outlet radiator (130).
6. A quick-assembly distribution box according to claim 5, characterized in that: It also includes a heating tube (14), and the heating tube (14) is installed at the bottom of the upper sealing plate (3). The heating tube (14) is located below the air intake radiator.
7. A quick-assembly distribution box according to claim 6, characterized in that: It also includes an observation window (15) and a protective shed (17). An observation window (15) is provided in the upper part of the door panel (2), and an arc-shaped protective shed (17) is provided on the top of the upper sealing plate (3). The protective shed (17) covers the air intake radiator (13) below.
8. A quick-assembly distribution box according to claim 7, characterized in that: It also includes gaskets (18), and the outer sides of the rear part of the sealing plate (3) are provided with gaskets (18) for positioning the auxiliary distribution box.
Citation Information
Patent Citations
Split assembly type distribution box
CN219106835U