A waterproof and moisture-proof protection structure of a low-voltage uninterrupted power supply box

Abstract

The utility model belongs to power supply box technical field especially relates to a waterproof and moistureproof protection structure of low pressure uninterrupted power supply box, including power supply box casing, the front end of power supply box casing is provided with the box door, and the inner chamber of power supply box casing is provided with the mounting frame, sealing assembly, sealing assembly includes the first sealing frame of setting in the box door, and the front end opening of power supply box casing is provided with the second sealing frame, moistureproof component, moistureproof component includes the drying box of setting in the mounting frame, the utility model discloses through the cooperation of first sealing frame and second sealing frame, can form double -sealed effect when the box door closes, effectively blocks the outside rain, moisture and seeps into the gap from the box door and the shell, improves power supply box whole waterproof tightness, fan can accelerate the air circulation of power supply box casing inside and outside, and drying box can dry the air that enters the shell inside to dehumidification, reduces the humidity of shell inner chamber, prevents the short circuit, damage and other problems of electrical element because of damp.

Description

Technical Field

[0001] This utility model belongs to the field of power supply box technology, and in particular relates to a waterproof and moisture-proof protection structure for a low-voltage uninterruptible power supply box. Background Technology

[0002] Low-voltage uninterruptible power supply (UPS) boxes, as key terminal equipment in power systems, are widely used in residential communities, commercial buildings, industrial workshops, and other scenarios. They need to operate stably for extended periods to ensure continuous power supply for loads such as lighting, monitoring, and emergency equipment. However, their actual operating environments often face problems such as rain and high humidity. Existing UPS boxes have significant deficiencies in their protective structures, making it difficult to meet the requirements for long-term reliable operation.

[0003] Traditional power supply boxes often use a single-ring sealing strip to seal the box door and the shell. The sealing surface is prone to aging and deformation due to long-term use, which allows rainwater or moisture to seep into the shell cavity through the gaps. Especially in rainy seasons or humid environments, the seeping water will adhere to the surface of electrical components, which not only accelerates component corrosion, but also easily causes faults such as short circuits and poor contact. In severe cases, it may even cause power outages and affect the normal operation of downstream equipment. In some power supply boxes equipped with drying devices, the drying components are mostly fixedly installed. When the desiccant becomes saturated, multiple fixed components need to be disassembled with tools such as screwdrivers to replace them. This maintenance operation is cumbersome and time-consuming, and the disassembly process is prone to causing damage to surrounding electrical components, further increasing the risk of equipment failure. Moreover, some power supply boxes lack a stable limiting structure for the door when maintaining the drying components, which can easily cause shaking due to external force and interfere with internal components, affecting maintenance efficiency and operational safety. Therefore, improvements are urgently needed. Thus, we propose a waterproof and moisture-proof protection structure for low-voltage uninterruptible power supply boxes. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned technical problems by providing a waterproof and moisture-proof protection structure for a low-voltage uninterruptible power supply box, thereby achieving the effect of waterproofing and moisture-proofing the interior of the power supply box.

[0005] In view of this, the present invention provides a waterproof and moisture-proof protection structure for a low-voltage uninterruptible power supply box, including a power supply box shell, a door at the front end of the power supply box shell, an installation frame inside the power supply box shell, a sealing assembly including a first sealing frame on the door and a second sealing frame at the front opening of the power supply box shell, a moisture-proof assembly including a drying box inside the installation frame, a fan on one side of the power supply box shell, the drying box on one side of the fan for drying and dehumidifying the air discharged into the power supply box shell by the fan, and a disassembly assembly including a limiting plate below the installation frame and a fixing strip below the limiting plate, a limiting groove at the lower end of the drying box, a wedge block fixedly installed at the upper end of the fixing strip, and a movably penetrating connection between the lower end of the limiting plate and the lower end of the power supply box shell.

[0006] Furthermore, the first sealing frame and the second sealing frame are respectively fixedly connected to the edge of the box door and the power supply box housing by adhesive. The size of the first sealing frame is larger than that of the second sealing frame, and the inner side of the first sealing frame is in contact with the outer side of the second sealing frame.

[0007] Furthermore, the mounting frame has a first receiving groove inside, a second receiving groove at the lower end of the first receiving groove, and a ventilation groove in the middle of the first receiving groove, which corresponds to the air outlet of the fan.

[0008] Furthermore, the size of the drying box is adapted to the size of the first receiving tank, and the drying box is movably connected to the first receiving tank.

[0009] Furthermore, the size of the limiting plate is adapted to the size of the second receiving groove, and the limiting plate is movably connected to the second receiving groove.

[0010] Furthermore, sliding grooves are provided on both sides of the inner cavity of the second receiving groove, and sliders are fixedly installed at both ends of the limiting plate. The size of the sliders is adapted to the size of the sliding grooves, and the sliders are slidably connected to the sliding grooves.

[0011] Furthermore, a return spring is fixedly installed in the inner cavity of the slide, and the other end of the return spring is fixedly connected to the slider.

[0012] Furthermore, the limiting plate is disposed below the limiting groove, and the limiting plate is movably connected to the limiting groove.

[0013] Furthermore, the fixing strip is fixedly connected to the lower end of the limiting plate by welding, and the height of the inclined surface of the wedge block is greater than the height of the limiting groove.

[0014] The beneficial effects of this utility model are: The first and second sealing frames work together to create a double seal when the door is closed, effectively preventing rainwater and moisture from seeping in through the gaps between the door and the casing, thus improving the overall waterproof sealing of the power supply box. The fan accelerates air circulation inside and outside the power supply box casing, while the drying box dries and dehumidifies the air entering the casing, reducing the humidity inside the casing and preventing electrical components from short-circuiting or being damaged due to moisture. The thrust of the rotating door can drive the wedge block to separate the limiting plate from the limiting groove of the drying box, allowing the drying box to be quickly removed and replaced without additional tools. This greatly simplifies the maintenance process of the drying box, improves maintenance efficiency, and ensures the continuous and stable operation of the moisture-proof components. Furthermore, when the bottom of the door rotates from the inclined surface of the wedge block to the horizontal surface of the wedge block, the elasticity of the return spring applies a reaction force to the wedge block, thereby increasing the friction between the wedge block and the bottom of the door, achieving a frictional limiting effect on the door and preventing interference during the removal of the drying box. Attached Figure Description

[0015] Figure 1 This is a first-view structural schematic diagram of a waterproof and moisture-proof protection structure for a low-voltage uninterruptible power supply box proposed in this utility model. Figure 2 This is a second-view structural schematic diagram of a waterproof and moisture-proof protection structure for a low-voltage uninterruptible power supply box proposed in this utility model. Figure 3 This utility model presents a schematic diagram of the moisture-proof component and disassembly component of a waterproof and moisture-proof protection structure for a low-voltage uninterruptible power supply box. Figure 4 This is a schematic diagram of the internal structure of the mounting frame of a waterproof and moisture-proof protection structure for a low-voltage uninterruptible power supply box proposed in this utility model. Figure 5 This is a schematic diagram of the internal structure of the moisture-proof component of a waterproof and moisture-proof protection structure for a low-voltage uninterruptible power supply box proposed in this utility model. Figure 6 This is a bottom view of the drying box structure of a waterproof and moisture-proof protection structure for a low-voltage uninterruptible power supply box proposed in this utility model. The markings in the diagram are as follows: 1. Power supply box housing; 11. Box door; 12. First sealing frame; 13. Second sealing frame; 2. Mounting frame; 21. Drying box; 22. Fan; 23. First receiving groove; 24. Ventilation groove; 25. Second receiving groove; 26. Limiting plate; 27. Slide groove; 28. Sliding block; 29. ​​Return spring; 3. Limiting groove; 4. Fixing strip; 5. Wedge block. Detailed Implementation

[0016] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0017] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0018] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0019] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0020] It should be noted that, in this application, 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0021] Reference Figures 1 to 6 A waterproof and moisture-proof protection structure for a low-voltage uninterruptible power supply box includes a power supply box housing 1, a door 11 at the front end of the power supply box housing 1, an installation frame 2 inside the power supply box housing 1, a sealing component including a first sealing frame 12 on the door 11 and a second sealing frame 13 at the front opening of the power supply box housing 1, a moisture-proof component including a drying box 21 inside the installation frame 2, a fan 22 on one side of the power supply box housing 1, the drying box 21 being located on one side of the fan 22 for drying and dehumidifying the air discharged into the power supply box housing 1 by the fan 22, and a disassembly component including a limiting plate 26 below the installation frame 2 and a fixing strip 4 below the limiting plate 26, a limiting groove 3 at the lower end of the drying box 21, a wedge block 5 fixedly installed at the upper end of the fixing strip 4, and the lower end of the limiting plate 26 being movably connected to the lower end of the power supply box housing 1.

[0022] This utility model uses the power supply box housing 1 as the basic carrier, which, together with the box door 11, forms a closed space to facilitate the isolation of external debris from the internal electrical components. When the box door 11 is closed, the first sealing frame 12 on the box door 11 and the second sealing frame 13 at the front opening of the housing fit together. The cooperation of the first sealing frame 12 and the second sealing frame 13 achieves a double sealing structure to block the path of rainwater and moisture from seeping in through gaps, thus achieving a waterproof sealing function. When the moisture-proof component is working, the fan 22 starts and accelerates the airflow inside and outside the housing. Before the outside air enters the housing under the action of the fan 22, it first flows through the drying box 21 in the mounting frame 2. The desiccant in the drying box 21 absorbs the moisture in the air, keeping the air entering the housing dry, thereby reducing the humidity inside the housing cavity. When the drying box 21 is removed, during the process of opening the box door 11, the box door 11... Rotating along the hinge towards the fan 22, the lower edge of the door 11 contacts the wedge block 5 on the fixing strip 4, which in turn pushes the fixing strip 4 downward, thereby causing the limiting plate 26 to separate from the limiting groove 3 on the drying box 21. This allows the operator to quickly remove the drying box 21 without the need for additional tools, greatly simplifying the maintenance process and improving maintenance efficiency. Furthermore, when the bottom of the door 11 rotates from the inclined surface of the wedge block 5 to the horizontal surface of the wedge block 5, the elasticity of the return spring 29 applies a reaction force to the wedge block 5, thereby increasing the friction between the wedge block 5 and the bottom of the door 11. This achieves the effect of friction limiting the door 11, preventing interference during the removal of the drying box 21.

[0023] In the example of this application, the first sealing frame 12 and the second sealing frame 13 are both fixedly connected to the door 11 and the edge of the power supply box housing 1 by adhesive. The size of the first sealing frame 12 is larger than that of the second sealing frame 13, and the inner side of the first sealing frame 12 is in contact with the outer side of the second sealing frame 13.

[0024] As a preferred example of this utility model, the first sealing frame 12 is fixed to the inside of the box door 11 by adhesive, and the second sealing frame 13 is fixed to the edge of the opening at the front end of the power supply box housing 1 by adhesive. The adhesive method ensures that the sealing frame and the corresponding component form a stable connection. Since the first sealing frame 12 is larger than the second sealing frame 13, when the box door 11 is closed, the first sealing frame 12 will wrap around the second sealing frame 13, and the contact surfaces of the two will be in close contact to form a nested sealing structure, thereby reducing the sealing gap and making it difficult for rainwater and moisture to break through the double sealing barrier, further enhancing the waterproof and moisture-proof effect.

[0025] In the example of this application, a first receiving groove 23 is provided inside the mounting frame 2, a second receiving groove 25 is provided at the lower end of the first receiving groove 23, and a ventilation groove 24 is provided in the middle of the first receiving groove 23, the ventilation groove 24 corresponding to the air outlet end of the fan 22.

[0026] As a preferred example of this utility model, after the drying box 21 is placed in the first receiving groove 23, the side wall of the receiving groove forms a limit on the drying box 21 to prevent the drying box 21 from shifting due to vibration during the operation of the power supply box, ensuring that the drying box 21 always maintains the corresponding position with the air outlet of the fan 22; the second receiving groove 25 provides installation space for the limiting plate 26, so that the limiting plate 26 can move in the groove without colliding or interfering with other components in the mounting frame 2; when the fan 22 is working, the exhaust air will flow directly to the drying box 21 through the ventilation groove 24 corresponding to the air outlet. The ventilation groove 24 plays a guiding role, allowing all the air to flow through the interior of the drying box 21 and fully contact the desiccant to ensure the air drying effect and prevent undried air from entering the shell through other paths.

[0027] In the example of this application, the size of the drying box 21 is adapted to the size of the first receiving groove 23, and the drying box 21 is movably connected to the first receiving groove 23.

[0028] As a preferred example of this utility model, the external dimensions of the drying box 21 are perfectly matched with the internal dimensions of the first receiving groove 23. When the drying box 21 is placed into the first receiving groove 23, the outer wall of the drying box 21 fits tightly with the inner wall of the receiving groove, eliminating the gap between the two. This prevents air from bypassing the drying box 21 and directly entering the power supply box housing 1. It also facilitates timely replacement according to the adsorption saturation of the desiccant, ensuring that the moisture-proof function remains effective.

[0029] In the example of this application, the size of the limiting plate 26 is adapted to the size of the second receiving groove 25, and the limiting plate 26 is movably connected to the second receiving groove 25.

[0030] As a preferred example of this utility model, the size of the limiting plate 26 is adapted to the inner cavity size of the second receiving groove 25. After the limiting plate 26 is placed in the second receiving groove 25, there will be no jamming or displacement caused by size deviation, and it can slide smoothly in the receiving groove. The movable connection structure between the limiting plate 26 and the second receiving groove 25 allows the limiting plate 26 to move along the direction of the receiving groove under the drive of the disassembly component. When it is necessary to disassemble the drying box 21, the limiting plate 26 can be smoothly moved away from the limiting groove 3 of the drying box 21, releasing the limitation on the drying box 21. After the drying box 21 is installed, the limiting plate 26 can be reset to the bottom of the limiting groove 3, forming a stable support for the drying box 21.

[0031] In the example of this application, the inner cavity of the second receiving groove 25 is provided with sliding grooves 27 on both sides, and the two ends of the limiting plate 26 are fixedly installed with sliders 28. The size of the sliders 28 is adapted to the size of the sliding grooves 27, and the sliders 28 and the sliding grooves 27 are slidably connected.

[0032] As a preferred example of this utility model, the sliding grooves 27 on both sides of the second receiving groove 25 are matched with the dimensions of the sliders 28 at both ends of the limiting plate 26. After the sliders 28 are embedded in the sliding grooves 27, the sliding grooves 27 restrict the movement direction of the sliders 28, thereby providing guidance for the movement of the limiting plate 26, ensuring that the limiting plate 26 can only slide along the direction of the sliding grooves 27, avoiding deviation or tilting, and ensuring the docking and separation operation of the limiting plate 26 and the limiting groove 3 of the drying box 21.

[0033] In the example of this application, a return spring 29 is fixedly installed in the inner cavity of the slide 27, and the other end of the return spring 29 is fixedly connected to the slider 28.

[0034] As a preferred example of this utility model, one end of the return spring 29 in the slide 27 is fixed to the bottom of the slide 27, and the other end is connected to the slider 28. When the door 11 pushes the wedge block 5 to move the limiting plate 26, the sliders 28 at both ends of the limiting plate 26 will compress the return spring 29, so that the spring stores elastic potential energy. When the pushing force on the wedge block 5 disappears, the return spring 29 releases the elastic potential energy, pushes the slider 28 to move in the opposite direction along the slide 27, and the slider 28 drives the limiting plate 26 to reset synchronously, so that the limiting plate 26 automatically gets into the limiting groove 3 of the drying box 21, thereby realizing the automatic reset of the limiting plate 26. At the same time, the elastic force of the return spring 29 can keep the limiting plate 26 in close contact with the limiting groove 3, preventing the limiting plate 26 from loosening.

[0035] In the example of this application, the limiting plate 26 is disposed below the limiting groove 3, and the limiting plate 26 is movably connected to the limiting groove 3.

[0036] As a preferred example of this utility model, the limiting plate 26 is installed in the second receiving groove 25 and is located directly below the limiting groove 3 at the lower end of the drying box 21. When the drying box 21 is placed into the first receiving groove 23, the limiting plate 26 will be inserted upward into the limiting groove 3, forming a support and limiting position for the drying box 21 from below, preventing the drying box 21 from falling out of the first receiving groove 23 due to tilting or vibration of the power supply box. Since the limiting plate 26 and the limiting groove 3 are movably connected, when it is necessary to disassemble the drying box 21, the limiting plate 26 can be removed from the limiting groove 3 under external force, releasing the limiting position on the drying box 21, so that the drying box 21 can be smoothly removed, thereby facilitating the installation of the drying box 21.

[0037] In the example of this application, the fixing strip 4 is fixedly connected to the lower end of the limiting plate 26 by welding, and the height of the inclined surface of the wedge block 5 is greater than the height of the limiting groove 3.

[0038] As a preferred example of this utility model, the fixing strip 4 is connected to the lower end of the limiting plate 26 by welding. The welding process enables the two to form an integral structure with high connection strength. During long-term use, the fixing strip 4 and the limiting plate 26 will not separate, ensuring the overall structural stability of the disassembly assembly. The inclined surface height of the wedge block 5 is designed to be greater than the height of the limiting groove 3. When the door 11 pushes the wedge block 5 to move, the wedge block 5 moves the limiting plate 26 a sufficiently long distance to completely disengage the limiting plate 26 from the limiting groove 3. This prevents the limiting plate 26 from being partially left in the limiting groove 3, thus ensuring the smoothness of the disassembly operation of the drying box 21.

[0039] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A waterproof and moisture-proof protection structure for a low-voltage uninterruptible power supply box, characterized in that, include: The power supply box housing (1) has a door (11) at the front end and an installation frame (2) in the inner cavity of the power supply box housing (1). The sealing assembly includes a first sealing frame (12) disposed on the box door (11) and a second sealing frame (13) disposed at the front opening of the power supply box housing (1). Moisture-proof component, the moisture-proof component includes a drying box (21) set in the mounting frame (2), a fan (22) is set on one side of the power supply box housing (1), the drying box (21) is set on one side of the fan (22) and is used to dry and dehumidify the air discharged into the power supply box housing (1) by the fan (22); The disassembly assembly includes a limiting plate (26) located below the mounting frame (2) and a fixing strip (4) located below the limiting plate (26). A limiting groove (3) is provided at the lower end of the drying box (21). A wedge block (5) is fixedly installed at the upper end of the fixing strip (4). The lower end of the limiting plate (26) is movably connected to the lower end of the power supply box housing (1).

2. The waterproof and moisture-proof protection structure for a low-voltage uninterruptible power supply box according to claim 1, characterized in that, The first sealing frame (12) and the second sealing frame (13) are fixedly connected to the door (11) and the edge of the power supply box housing (1) respectively by adhesive. The size of the first sealing frame (12) is larger than that of the second sealing frame (13), and the inner side of the first sealing frame (12) is in contact with the outer side of the second sealing frame (13).

3. The waterproof and moisture-proof protection structure for a low-voltage uninterruptible power supply box according to claim 2, characterized in that, The mounting frame (2) has a first receiving groove (23) inside, a second receiving groove (25) is provided at the lower end of the first receiving groove (23), and a ventilation groove (24) is provided in the middle of the first receiving groove (23). The ventilation groove (24) corresponds to the air outlet of the fan (22).

4. The waterproof and moisture-proof protection structure for a low-voltage uninterruptible power supply box according to claim 3, characterized in that, The size of the drying box (21) is adapted to the size of the first receiving groove (23), and the drying box (21) is movably connected to the first receiving groove (23).

5. The waterproof and moisture-proof protection structure for a low-voltage uninterruptible power supply box according to claim 4, characterized in that, The size of the limiting plate (26) is adapted to the size of the second receiving groove (25), and the limiting plate (26) is movably connected to the second receiving groove (25).

6. The waterproof and moisture-proof protection structure for a low-voltage uninterruptible power supply box according to claim 5, characterized in that, The inner cavity of the second receiving groove (25) is provided with sliding grooves (27) on both sides. The two ends of the limiting plate (26) are fixedly installed with sliders (28). The size of the sliders (28) is adapted to the size of the sliding grooves (27), and the sliders (28) and the sliding grooves (27) are slidably connected.

7. The waterproof and moisture-proof protection structure for a low-voltage uninterruptible power supply box according to claim 6, characterized in that, A reset spring (29) is fixedly installed in the inner cavity of the slide (27), and the other end of the reset spring (29) is fixedly connected to the slider (28).

8. The waterproof and moisture-proof protection structure for a low-voltage uninterruptible power supply box according to claim 7, characterized in that, The limiting plate (26) is located below the limiting groove (3), and the limiting plate (26) is movably connected to the limiting groove (3).

9. The waterproof and moisture-proof protection structure for a low-voltage uninterruptible power supply box according to claim 8, characterized in that, The fixing strip (4) is fixedly connected to the lower end of the limiting plate (26) by welding, and the height of the inclined surface of the wedge block (5) is greater than the height of the limiting groove (3).

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