A distribution box with a water collecting groove
By installing water collection and drainage channels on the door frame of the distribution box, combined with the double-door design, the problem of rainwater entering the distribution box is solved, achieving waterproof and moisture-proof effects and improving the safety and service life of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TANGSHAN RUIKUO AUTOMATION EQUIP CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-10
AI Technical Summary
Existing distribution boxes are prone to rainwater entering through the gap between the door frame and the top of the box door, causing internal dampness and affecting equipment safety and lifespan.
Water collection troughs and water guide troughs are installed on the door frame of the distribution box. Combined with the design of the double-door box, the water collection troughs collect rainwater and guide it to the outside. The water guide troughs and water guide plates are used to guide the rainwater to the outside of the distribution box to avoid seepage.
It effectively prevents rainwater from entering the distribution box, keeps the interior dry, prevents equipment from getting damp, extends equipment life, and enhances structural strength and safety.
Smart Images

Figure CN224481375U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power transmission and distribution equipment technology, and in particular to a power distribution box with a water receiving trough. Background Technology
[0002] A distribution box is an electrical device used for the centralized installation, distribution, and control of electrical energy. It typically consists of a cabinet, switching devices (such as circuit breakers and residual current devices), measuring instruments, protective devices, and other auxiliary components. It acts as a "hub" in the power system, distributing electrical energy from the grid to various electrical devices or circuits according to demand. It also provides overload and short-circuit protection functions to ensure electrical safety. Waterproofing the distribution box is crucial for its normal operation and electrical safety. Rainwater, moisture, or liquids seeping into the distribution box can cause internal circuit breakers, wiring connections, and other electrical components to become damp. In a humid environment, the insulation performance of insulating materials deteriorates, potentially leading to short circuits, leakage, or even component burnout, causing equipment failure or power outages. Furthermore, moisture combining with oxygen and carbon dioxide in the air accelerates corrosion of the metal casing and internal connections of the distribution box, reducing structural strength and shortening the equipment's lifespan.
[0003] Distribution boxes need to be waterproof while also having a certain degree of heat dissipation and ventilation. In order to ensure ventilation, existing distribution boxes usually do not have sealing strips installed on the edge of the door. However, rainwater can easily enter the distribution box through the edge of the door, which brings safety hazards. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a distribution box with a water receiving trough, which addresses the above-mentioned technical deficiencies. With the water receiving trough, rainwater on the upper side of the door frame and water entering the top of the box door will be collected by the water receiving trough, thus solving the problem of rainwater entering the distribution box through the gap between the top of the door frame and the box door.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a distribution box with a water receiving groove, including a distribution box, a door frame in the side wall of the distribution box, a door hinged in the door frame, a water receiving groove protruding outward on the top edge of the door frame, vertical water guiding grooves on both sides of the door frame, the top of the water guiding groove is located below one end of the water receiving groove, the bottom of the water guiding groove is located below the door frame, and the door is fastened to the outside of the water receiving groove and the water guiding groove.
[0006] To further optimize this technical solution, two doors are hinged in the box door, and the two doors are respectively hinged to the two sides of the door frame. The top edge of the door is provided with an upper curved edge, and the two sides of the door are respectively provided with side curved edges. The middle of the water tank is provided with a notch, and the two adjacent sets of side curved edges of the two doors are fastened in the notch.
[0007] To further optimize this technical solution, an upper baffle is provided at the top of the opening, and the upper baffle is fixed to the door frame.
[0008] To further optimize this technical solution, the top of the distribution box is equipped with an upper cover, the lower side of the upper cover is equipped with an upper ring beam, the bottom of the distribution box is equipped with a lower ring beam, the door frame is set between the upper ring beam and the lower ring beam, and the bottom end of the water guide channel is set on the upper side of the lower ring beam.
[0009] To further optimize this technical solution, a water guide plate is provided at the bottom of the lower ring beam, and a limiting groove is provided at the position corresponding to the lower ring beam. A locking ratchet is provided on one side of the limiting groove, and a ramp extension surface is provided on the outer side of the limiting groove. The ramp extension surface is located on the lower outer side of the lower ring beam.
[0010] Compared with the prior art, this utility model has the following advantages: 1. Rainwater on the upper side of the door frame and water entering the top of the box door will be collected by the water receiving trough, effectively preventing rainwater from entering the distribution box through the gap between the top of the door frame and the box door; 2. The water guiding trough can collect rainwater from the water receiving trough and also prevent rainwater from entering the distribution box through the sides of the door frame; 3. The notch can provide a space for the side bends of the two double-leaf boxes to be closed, ensuring the integrity and structural strength of the boxes. The upper baffle can effectively prevent rainwater from entering the distribution box through the notch; 4. Rainwater is finally guided to the periphery away from the distribution box through the water guiding plate, effectively preventing rainwater from seeping into the distribution box and avoiding water accumulation at the bottom of the distribution box, which can affect the service life of the equipment. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the external structure of a distribution box with a water collection trough.
[0012] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle;
[0013] Figure 3 This is a diagram showing the connection point between one end of the water inlet trough on both sides of the rear door frame and the water guide trough after removing the rear door.
[0014] Figure 4 This is a structural diagram of the upper ring beam after the door and door frame on one side of the distribution box are cut open at the water guide channel location.
[0015] Figure 5 This is a structural diagram of the lower ring beam after the door and door frame on one side of the distribution box are cut open at the water guide channel.
[0016] In the diagram: 1. Distribution box; 100. Top cover; 10. Lower ring beam; 11. Upper ring beam; 2. Box door; 20. Upper curved edge; 21. Side curved edge; 3. Door frame; 31. Water collection trough; 310. Notch; 32. Water guide trough; 4. Upper baffle; 5. Water guide plate; 50. Limiting groove; 51. Snap-fit ratchet; 52. Sloping extension surface; 53. Waterproof adhesive layer. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that these descriptions are exemplary only and are not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.
[0018] It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" used in this application to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings. They are used solely for the convenience of describing this disclosure and for 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. Therefore, they should not be construed as limitations on this disclosure. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0019] Combination Figures 1 to 5 As shown, a distribution box with a water receiving trough includes a distribution box 1, a door frame 3 in the side wall of the distribution box 1, a top cover 100 on the top of the distribution box 1, an upper ring beam 11 on the lower side of the top cover 100, and a lower ring beam 10 at the bottom of the distribution box 1. The door frame 3 is located between the upper ring beam 11 and the lower ring beam 10, and a box door 2 is hinged in the door frame 3. Figures 1 to 3 As shown, the top edge of the door frame 3 is provided with an outwardly protruding water receiving groove 31, and the two side edges of the door frame 3 are respectively provided with vertical water guiding grooves 32, combined with Figures 3 to 4 As shown, the top of the water guide trough 32 is located on the lower side of one end of the water receiving trough 31, the bottom of the water guide trough 32 is located on the lower side of the door frame 3, and the box door 2 is fastened to the outside of the water receiving trough 31 and the water guide trough 32.
[0020] More specifically, in combination Figures 1 to 2As shown, the distribution box 2 has two hinged doors 2, which are respectively hinged to the two sides of the outer side of the door frame 3. Each door 2 has an upper curved edge 20 at its top edge and side curved edges 21 on its two side edges. The upper curved edges 20 and side curved edges 21 face the inside of the distribution box 1. A notch 310 is provided in the middle of the length of the water trough 31. The two adjacent sets of side curved edges 21 of the two doors 2 are fastened into the notch 310. An upper baffle 4 is provided at the top of the notch 310 and is fixed in the door frame 3. The notch 310 provides space for the side curved edges of the two doors 2 when closed, ensuring the structural strength of the doors 2. The upper baffle effectively prevents rainwater from entering the distribution box through the notch.
[0021] Combination Figure 1 and 5 As shown, the bottom end of the water guide channel 32 is set on the upper side of the lower ring beam 10. The bottom of the lower ring beam 10 is provided with a water guide plate 5. The water guide plate 5 is made of rubber with a certain elasticity. The water guide plate 5 is provided with a limiting groove 50 at the position corresponding to the lower ring beam 10. A locking ratchet 51 is provided on one side of the limiting groove 50. A slope extension surface 52 is provided on the outer side of the limiting groove 50. The slope extension surface 52 is set on the lower outer side of the lower ring beam 10. A waterproof adhesive layer 53 is provided at the position where the slope extension surface 52 connects with the lower ring beam 10.
[0022] When using, combine Figures 1 to 5 As shown, when the outside of the distribution box 1 is exposed to rain, the rainwater first falls onto the outside of the door frame 3 and the box door 2. The rainwater on the upper side of the door frame 3 will be collected by the water receiving trough 31. Since the water receiving trough 31 is located on the lower inside of the upper bend 20, when rainwater enters the inside of the distribution box 1 through the upper bend 20, it will also drip into the water receiving trough 31 by gravity. The water in the water receiving trough 31 will flow into the water guiding trough 32 through the openings at both ends, and then flow along the water guiding trough 32 to the outside of the lower ring beam 10 on the lower side. Finally, it will be guided to the periphery away from the distribution box 1 by the water guiding plate 5, effectively preventing rainwater from seeping into the inside of the distribution box 1 and preventing water accumulation at the bottom of the distribution box 1 from affecting the service life of the equipment.
[0023] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
Claims
1. A distribution box with a water receiving trough, comprising a distribution box (1), wherein a door frame (3) is provided in the side wall of the distribution box (1), and a box door (2) is hinged in the door frame (3), characterized in that: The top edge of the door frame (3) is provided with an outwardly protruding water receiving groove (31), and the two sides of the door frame (3) are respectively provided with vertical water guiding grooves (32). The top of the water guiding groove (32) is located below one end of the water receiving groove (31), and the bottom of the water guiding groove (32) is located below the door frame (3). The box door (2) is fastened to the outside of the water receiving groove (31) and the water guiding groove (32).
2. The distribution box with a water receiving trough according to claim 1, characterized in that: Two doors (2) are hinged in the box door (2). The two doors (2) are respectively hinged to both sides of the door frame (3). The top edge of the door (2) is provided with an upper curved edge (20). The two sides of the door (2) are respectively provided with side curved edges (21). The middle part of the water receiving tank (31) is provided with a notch (310). The two adjacent sets of side curved edges (21) of the two doors (2) are fastened in the notch (310).
3. A distribution box with a water receiving trough according to claim 2, characterized in that: The upper part of the notch (310) is provided with an upper baffle (4), which is fixed in the door frame (3).
4. A distribution box with a water receiving trough according to claim 1, characterized in that: The top of the distribution box (1) is provided with a top cover (100), the lower side of the top cover (100) is provided with an upper ring beam (11), the bottom of the distribution box (1) is provided with a lower ring beam (10), the door frame (3) is located between the upper ring beam (11) and the lower ring beam (10), and the bottom end of the water guide channel (32) is located on the upper side of the lower ring beam (10).
5. A distribution box with a water receiving trough according to claim 4, characterized in that: The bottom of the lower ring beam (10) is provided with a water guide plate (5). The water guide plate (5) is provided with a limiting groove (50) at the position corresponding to the lower ring beam (10). A ratchet tooth (51) is provided on one side of the limiting groove (50). A ramp extension surface (52) is provided on the outer side of the limiting groove (50). The ramp extension surface (52) is located on the lower outer side of the lower ring beam (10).