High-safety low-voltage power distribution cabinet

Abstract

The utility model discloses a low-voltage power distribution cabinet with high safety performance, which relates to the field of power distribution cabinet equipment and comprises a cabinet body and a cabinet door, a support frame is fixed inside the cabinet body, side dust screens are fixed inside the cabinet body on two sides of the support frame, an air bellow is fixed on the top surface of the cabinet body in a penetrating manner, and a dehumidification box is fixed on the top surface inside the cabinet body below the air bellow. Air guide pipes are fixed to the two sides of the dehumidification box in a penetrating mode, an air guide side box is fixed to the side wall of the cabinet body on the outer side of the side dustproof net, the ends, away from the dehumidification box, of the two air guide pipes are fixed to the inner wall of the cabinet body on the inner side of the air guide side box in a penetrating mode, and a base box is fixed to the bottom of the cabinet body. The air guide side boxes are arranged on the two sides of the cabinet body, so that external airflow drives heat in the cabinet body when passing through the two sides of the cabinet body after entering the cabinet body, the interior of the cabinet body is cooled, and dust can be prevented from entering the cabinet body and accumulating on internal devices when the cabinet door is closed under the protection effect of the side dustproof nets.

Description

Technical Field

[0001] This utility model relates to the field of power distribution cabinet equipment, specifically to a low-voltage power distribution cabinet with high safety performance. Background Technology

[0002] Low-voltage distribution cabinets refer to complete sets of electrical devices with AC and DC voltages below 1000V. They can step down high-voltage electrical energy to low-voltage electrical energy through transformers and then distribute it to various electrical devices. Through internal protective devices such as switches, circuit breakers, and fuses, low-voltage distribution cabinets can realize the protection, control, and monitoring of electrical energy. They are used for converting and configuring electrical energy and have the characteristics of strong breaking capacity, good dynamic and thermal stability, flexible electrical schemes, convenient combination, strong series and practicality, and novel structure.

[0003] In existing technologies, low-voltage distribution cabinets require internal ventilation during use. However, ventilation can easily bring external dust and debris into the cabinet. Once inside, this dust and debris accumulates on the internal control components, reducing their heat dissipation performance. Furthermore, when the distribution cabinet is located in a humid environment, the high humidity from the external airflow can directly enter the cabinet, causing moisture and potentially leading to corrosion of the internal control components. Based on these considerations, we propose a high-safety-performance low-voltage distribution cabinet. Utility Model Content

[0004] In order to solve the technical problems existing in the prior art, the present invention provides a low-voltage distribution cabinet with high safety performance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-safety-performance low-voltage distribution cabinet, comprising a cabinet body and a cabinet door, a support frame fixed inside the cabinet body, side dustproof nets fixed inside the cabinet body on both sides of the support frame, a fan box fixed through the top surface of the cabinet body, a dehumidification box fixed inside the top surface of the cabinet body below the fan box, air guide pipes fixed through the sides of the dehumidification box, air guide side boxes fixed on the cabinet side wall outside the side dustproof nets, the ends of the two air guide pipes away from the dehumidification box being fixed through the inner wall of the cabinet body inside the air guide side boxes, a base box fixed at the bottom of the cabinet body, and the bottoms of the two air guide side boxes being connected through the base box.

[0006] Preferably, the top surface of the cabinet has an air inlet that connects to the inside of the air box, the air box has a fan with the air outlet facing the inside of the cabinet, and the inside of the cabinet on both sides of the air duct has a through groove that matches the air duct.

[0007] Preferably, both the dehumidification box and the base box have lower air vents on both sides that cooperate with the air duct and the air duct side box. The lower air vents on both sides of the dehumidification box are located on both sides of the ventilation net, and the ventilation net is embedded and fixed inside the dehumidification box inside the lower air vent.

[0008] Preferably, a dehumidification box is slidably inserted inside the dehumidification box, the dehumidification box is filled with desiccant, and a limit frame is provided on the outside of the dehumidification box, with the rear end of the limit frame rotatably connected to both sides of the dehumidification box.

[0009] Preferably, a dust collection box is slidably inserted inside the base box, and a slot that matches the dust collection box is opened at one end of the base box near the cabinet door. A lower dustproof net is embedded and fixed at the bottom of the dust collection box, and the mesh count of the lower dustproof net is the same as that of the side dustproof net.

[0010] Preferably, auxiliary pull blocks are fixed on both sides of the dust collection box near the slotted end, and grooves that cooperate with the auxiliary pull blocks are opened on both sides of the base box. The base box below the groove is fixed to the dust collection box by bolts.

[0011] Preferably, the limiting frame is set as a horizontally placed U-shape to cooperate with the dehumidification box and the dehumidification chamber, and both fixed support rods are set as horizontally placed T-shapes, with the distance between the fixed support rod and the bottom surface of the dehumidification chamber and the side of the fixed support rod being the same.

[0012] Preferably, the limiting frame is set as a horizontally placed U-shape to cooperate with the dehumidification box and the dehumidification chamber, and both fixed support rods are set as horizontally placed T-shapes, with the distance between the fixed support rod and the bottom surface of the dehumidification chamber and the side of the fixed support rod being the same.

[0013] Compared with the prior art, this utility model provides a low-voltage distribution cabinet with high safety performance, which has the following beneficial effects:

[0014] (1) In this utility model, by setting air guide side boxes on both sides of the cabinet, the external airflow enters and carries away the heat inside the cabinet when passing through both sides of the cabinet, thereby cooling the inside of the cabinet. At the same time, under the protection of the side dustproof net, dust can be prevented from entering the inside of the cabinet when the cabinet door is closed, thus preventing dust from accumulating on the internal components.

[0015] (2) The desiccant inside the dehumidification box at the top absorbs moisture when the external airflow enters and then flows into the cabinet, thereby preventing the internal components from rusting due to ventilation when the external environment is relatively humid. At the same time as ventilation, the internal components can also be protected.

[0016] (3) A dust collection box is provided at the bottom. After the airflow enters the dust collection box through the air guide side box, it is filtered by the bottom dust filter and the dust can be collected inside the dust collection box. The bottom dust filter can be cleaned by pulling out the dust collection box, thus ensuring the ventilation effect. Moreover, the cabinet does not need to be moved when cleaning, making the cabinet more convenient and labor-saving to maintain. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a front view schematic diagram of the entire high-safety-performance low-voltage distribution cabinet in the embodiment;

[0019] Figure 2 This is a bottom view of the electrical distribution cabinet structure in the embodiment;

[0020] Figure 3 This is a schematic diagram of the internal structure of the dehumidifier box in the embodiment;

[0021] Figure 4 This is a schematic diagram of the internal structure of the dust collection box of the housing in the embodiment;

[0022] Figure 5 This is a schematic diagram of the connection structure of the upper limit frame in the embodiment.

[0023] In the diagram: 1. Cabinet body; 2. Cabinet door; 3. Support frame; 4. Air box; 5. Dehumidifier box; 6. Air duct; 7. Side air duct; 8. Side dustproof net; 9. Base box; 10. Exhaust vent; 11. Dehumidifier box; 12. Ventilation net; 13. Dust collection box; 14. Lower air vent; 15. Auxiliary pull block; 16. Limit frame; 17. Fixed support rod; 18. Connecting slider; 19. Connecting slide; 20. Spring; 21. Lower dustproof net. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] This embodiment proposes a high-safety-performance low-voltage distribution cabinet, such as... Figures 1 to 5As shown, the cabinet includes a cabinet body 1 and a cabinet door 2. A support frame 3 is fixed inside the cabinet body 1. Side dustproof nets 8 are fixed inside the cabinet body 1 on both sides of the support frame 3. A blower box 4 is fixed through the top surface of the cabinet body 1. An air inlet is opened on the top surface of the cabinet body 1 to connect with the inside of the blower box 4. A fan with its air outlet facing the inside of the blower box 4 is installed inside the blower box 4. Through slots that cooperate with the air guide pipes 6 are opened inside the cabinet body 1 on both sides of the blower duct 6. A dehumidification box 5 is fixed inside the top surface of the cabinet body 1 below the blower box 4. Air guide pipes 6 are fixed through the sides of the dehumidification box 5. A side air guide box 7 is fixed on the side wall of the cabinet body 1 outside the side dustproof nets 8. The ends of the two air guide pipes 6 away from the dehumidification box 5 are both connected. The cabinet 1 is fixed to the inner wall of the air guide side box 7. The bottom of the cabinet 1 is fixed to the base box 9. The bottoms of the two air guide side boxes 7 are connected to the base box 9. The dehumidification box 11 is slidably inserted inside the dehumidification box 5. The dehumidification box 11 is filled with desiccant. The airflow enters the dehumidification box 11 under the drive of the fan inside the air box 4. When passing through the desiccant inside the dehumidification box 11, the desiccant absorbs the moisture in the airflow, so that the airflow dries before entering the air guide side box 7. With the ventilation and heat conduction design of the side dustproof net 8, the heat generated by the operation of the components in the cabinet 1 can be removed, thereby cooling the inside of the cabinet 1 and preventing dust and moisture from entering.

[0026] After the airflow enters the cabinet 1, it needs to enter the air guide side box 7. For this purpose, both sides of the dehumidification box 5 and the base box 9 are provided with lower air guide ports 14 that cooperate with the air guide pipe 6 and the air guide side box 7. After the airflow enters the dehumidification box 5, it enters the air guide side box 7 through the lower air guide port 14. After entering, it passes through the side dustproof net 8 and then enters the dust collection box 13 through the lower air guide port 14. The lower air guide ports 14 on both sides of the dehumidification box 5 are located on both sides of the ventilation net 12. The ventilation net 12 is embedded and fixed inside the dehumidification box 5 inside the lower air guide port 14. The ventilation net 12 can ensure ventilation while preventing the desiccant inside the air guide pipe 6 from entering.

[0027] To facilitate dust collection and cleaning from the cabinet 1 and incoming airflow during heat dissipation, a dust collection box 13 is slidably inserted inside the base box 9. A slot for the dust collection box 13 is provided at one end of the base box 9 near the cabinet door 2. Auxiliary pull blocks 15 are fixed to both sides of the dust collection box 13 near the slot. Grooves for the auxiliary pull blocks 15 are provided on both sides of the base box 9. The base box 9 below the grooves is fixed to the dust collection box 13 with bolts. A lower dustproof mesh 21 is embedded in the bottom of the dust collection box 13. The mesh count of the lower dustproof mesh 21 is the same as that of the side dustproof mesh 8. This mesh count is used when airflow enters the air guide side box. 7. At the rear of the interior, part of the dust enters the cabinet 1 after being filtered by the side dust filter 8. This helps to dissipate heat from the components inside the cabinet 1. After heat dissipation, the dust enters the dust collection box 13 and is discharged through the bottom exhaust vent 10. Before discharge, the dust is filtered and cleaned by the lower dust filter 21 at the bottom of the dust collection box 13. At the same time, the lower dust filter 21 also prevents external dust from entering the cabinet 1. When cleaning, tighten the bolts and pull the auxiliary pull blocks 15 on both sides to pull out the dust collection box 13 for cleaning. After cleaning, insert the dust collection box 13 into the base box 9 and re-secure it with bolts. There is no need to move or open the cabinet 1.

[0028] A limiting frame 16 is provided on the outside of the dehumidification box 11. The rear end of the limiting frame 16 is rotatably connected to both sides of the dehumidification chamber 5. Fixed support rods 17 are rotatably sleeved at both ends of the limiting frame 16. The limiting frame 16 is designed as a horizontally placed U-shape to cooperate with the dehumidification box 11 and the dehumidification chamber 5. Both fixed support rods 17 are designed as horizontally placed T-shapes. The distance between the fixed support rods 17 and the bottom surface and the side of the fixed support rods 17 is the same. The inner sides of both fixed support rods 17 are fixed to the side wall of the dehumidification chamber 5. Both ends of the limiting frame 16 are provided with connecting grooves 19 to cooperate with the fixed support rods 17. Connecting sliders 18 are slidably sleeved inside the connecting grooves 19 on the rear side of both fixed support rods 17. Each connecting slider 18 has a spring 20 fixed between its rear side and the rear wall of the connecting groove 19. After the desiccant inside the dehumidification box 11 reduces its moisture absorption capacity, the limiting frame 16 is pulled, causing the limiting frame 16 to compress the spring 20 and move outward. After moving, the limiting frame 16 is rotated downward under the support of the fixed support rod 17 until the limiting frame 16 releases its restriction on the dehumidification box 11. After the restriction is released, the dehumidification box 11 is pulled out, the old desiccant is poured out, new desiccant is added, and the dehumidification box 11 is inserted into the dehumidification box 5. The limiting frame 16 is rotated in the opposite direction to rotate it to the outside of the dehumidification box 11. The limiting frame 16 is then released, and the dehumidification box 11 can be clamped and fixed by the limiting frame 16.

[0029] In the description of this utility model, the terms "first," "second," "another," and "yet another" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0031] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A high-safety-performance low-voltage distribution cabinet, comprising a cabinet body (1) and a cabinet door (2), characterized in that: The cabinet (1) has a support frame (3) fixed inside. The cabinet (1) on both sides of the support frame (3) has a side dustproof net (8) fixed inside. The top surface of the cabinet (1) is fixed with a fan box (4). The top surface of the cabinet (1) below the fan box (4) is fixed with a dehumidification box (5). The sides of the dehumidification box (5) are fixed with air ducts (6). The side wall of the cabinet (1) outside the side dustproof net (8) is fixed with an air duct side box (7). The ends of the two air ducts (6) away from the dehumidification box (5) are fixed to the inner wall of the cabinet (1) inside the air duct side box (7). The bottom of the cabinet (1) is fixed with a base box (9). The bottom of the two air duct side boxes (7) are connected to the base box (9).

2. The high-safety-performance low-voltage distribution cabinet according to claim 1, characterized in that: The top surface of the cabinet (1) is provided with an air inlet that is connected to the inside of the air box (4). The air box (4) is provided with a fan whose air outlet faces the inside of the cabinet (1). The cabinet (1) on both sides of the air duct (6) is provided with a through groove that matches the air duct (6).

3. The high-safety-performance low-voltage distribution cabinet according to claim 1, characterized in that: Both sides of the dehumidification box (5) and the base box (9) are provided with lower air vents (14) that cooperate with the air duct (6) and the air duct side box (7). The lower air vents (14) on both sides of the dehumidification box (5) are located on both sides of the ventilation net (12). The ventilation net (12) is embedded and fixed inside the dehumidification box (5) inside the lower air vent (14).

4. The high-safety-performance low-voltage distribution cabinet according to claim 1, characterized in that: A dehumidification box (11) is slidably inserted inside the dehumidification box (5). The dehumidification box (11) is filled with desiccant. A limit frame (16) is provided on the outside of the dehumidification box (11). The rear end of the limit frame (16) is rotatably connected to both sides of the dehumidification box (5).

5. A high-safety-performance low-voltage distribution cabinet according to claim 1, characterized in that: A dust collection box (13) is slidably inserted inside the base box (9). A slot that matches the dust collection box (13) is opened at one end of the base box (9) near the cabinet door (2). A lower dustproof net (21) is embedded and fixed at the bottom of the dust collection box (13). The mesh count of the lower dustproof net (21) is the same as that of the side dustproof net (8).

6. A high-safety-performance low-voltage distribution cabinet according to claim 5, characterized in that: Auxiliary pull blocks (15) are fixed on both sides of the dust collection box (13) near the slot end. The base box (9) has grooves on both sides that cooperate with the auxiliary pull blocks (15). The base box (9) below the groove is fixed to the dust collection box (13) by bolts.

7. A high-safety-performance low-voltage distribution cabinet according to claim 4, characterized in that: Both ends of the limiting frame (16) are rotatably sleeved with fixed support rods (17). The inner sides of the two fixed support rods (17) are fixed on the side wall of the dehumidification box (5). Both ends of the limiting frame (16) are provided with connecting grooves (19) that cooperate with the fixed support rods (17). The connecting grooves (19) on the rear side of the two fixed support rods (17) are slidably sleeved with connecting sliders (18). A spring (20) is fixed between the rear side of each connecting slider (18) and the rear wall of the connecting groove (19).

8. A high-safety-performance low-voltage distribution cabinet according to claim 7, characterized in that: The limiting frame (16) is set as a horizontally placed U-shape to cooperate with the dehumidification box (11) and the dehumidification chamber (5). Both fixed support rods (17) are set as horizontally placed T-shapes. The distance between the fixed support rod (17) and the bottom surface of the dehumidification chamber (5) and the side of the fixed support rod (17) is the same.

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