Power distribution cabinet

Abstract

The application discloses a power distribution cabinet. The power distribution cabinet comprises a cabinet body, a blowing device and a wind guide device. The cabinet body is provided with an air inlet hole and an air outlet hole. The blowing device comprises an air duct and a fan. The fan drives airflow to enter the cabinet body through the air duct and the air inlet hole and to be discharged from the air outlet hole. The wind guide device comprises a wind guide box and a driving assembly. The wind guide box is movably arranged and communicates with the air inlet hole. The wind guide box has an air outlet. After the airflow enters the wind guide box through the air inlet hole, the airflow flows out of the wind guide box in the direction opposite to the air outlet. The driving assembly is drivingly connected to the wind guide box. The wind guide box can change the direction opposite to the air outlet under the driving of the driving assembly. By changing the flowing direction of the airflow entering the cabinet body, the cabinet body can be uniformly cooled, the position far from the air inlet hole can be prevented from overheating, the circuit equipment with high heat production power can be air-cooled for a long time or at a high frequency, and thus the heat dissipation demand of the circuit equipment with different heat production powers can be adaptively met.

Description

Technical Field

[0001] This invention relates to the field of power equipment, and in particular to a power distribution cabinet. Background Technology

[0002] Distribution cabinets are divided into power distribution cabinets, lighting distribution cabinets, and metering cabinets. They are the final stage equipment in the power distribution system, containing a large number of circuit devices, and are an important part of power transmission and power control.

[0003] Chinese patent application number 202220672918.0 discloses an intelligent precision power distribution cabinet. By setting air ducts on both sides of the cabinet's interior and evenly distributing air vents, cool air can be evenly distributed to the equipment, effectively dissipating heat and preventing localized overheating caused by poor heat dissipation in areas far from the air inlet. However, this intelligent precision power distribution cabinet still has the following problems:

[0004] Different circuit devices are installed in different locations inside the distribution cabinet. Different circuit devices have different heat generation capacities. Uniform air cooling can only meet the heat dissipation needs of some circuit devices, and some circuit devices with higher heat generation capacities will still overheat.

[0005] Based on the above, there is an urgent need for a power distribution cabinet that can solve the aforementioned technical problems. Summary of the Invention

[0006] The purpose of this invention is to provide a power distribution cabinet that can meet the heat dissipation requirements of circuit equipment with different heat generation power within the power distribution cabinet, and adaptively avoid overheating of some circuit equipment with higher heat generation power.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] The distribution cabinet includes:

[0009] The cabinet is equipped with air inlet and air outlet.

[0010] A blower device, comprising an air duct and a fan, wherein one end of the air duct is connected to an air inlet and the other end of the air duct is provided with the fan, and the fan drives airflow through the air duct and the air inlet into the cabinet and out through the air outlet.

[0011] An air guide device is disposed inside the cabinet. The air guide device includes an air guide box and a drive assembly. The air guide box is movably disposed and communicates with the air inlet. The air guide box has an air outlet. The airflow enters the air guide box through the air inlet and then flows out of the air guide box in the direction directly opposite to the air outlet. The drive assembly is tractively connected to the air guide box. Under the drive of the drive assembly, the air guide box can change the direction directly opposite to the air outlet.

[0012] Optionally, the air outlet is provided on one side of the air guide box, and the air inlet is provided on the other side of the air guide box. A flexible hose connects the air inlet and the air intake hole.

[0013] Optionally, the above-mentioned driving components include:

[0014] The motor, as described above, is fixedly installed;

[0015] The turntable is connected to the output end of the motor, and a transmission component is fixedly installed on the surface of the turntable.

[0016] The transmission rod has one end as a transmission end, which is connected to the air guide box; the other end of the transmission rod is a fulcrum end, and the transmission rod can rotate around the fulcrum end; the transmission rod is also provided with a transmission groove, which is located between the transmission end and the fulcrum end, and the transmission component is inserted into the transmission groove. When the turntable rotates, the transmission component can slide away from the fulcrum end or slide towards the fulcrum end within the transmission groove.

[0017] Optionally, a motor box is also provided on the outside of the cabinet, the motor is fixedly installed in the motor box, and the output end of the motor passes through the side wall of the cabinet and is connected to the turntable.

[0018] Optionally, the cabinet includes an air intake chamber and an electrical cavity. The air intake chamber is equipped with a filter and a blower. The electrical cavity contains electrical equipment. The air intake chamber is connected to the electrical cavity through the air intake hole. The air intake chamber has an air intake hole. Outside air enters the air duct through the air intake hole, the filter, and the blower in sequence.

[0019] Optionally, a drying device is also provided in the air intake chamber, and outside air enters the air passage in sequence through the air intake hole, the drying device, the filter device and the fan.

[0020] Optionally, the aforementioned fan includes a reversible fan, which is capable of controlling the airflow direction between the air intake chamber and the electrical chamber.

[0021] Optionally, the cabinet is provided with a maintenance port, which is connected to the air intake chamber, and the maintenance port is movably provided with a sealing cover.

[0022] Optionally, the air inlet is located in the middle of the side wall of the electrical cavity.

[0023] Optionally, an air duct protective cover is provided on the outside of the cabinet, and at least part of the air duct is located between the air duct protective cover and the cabinet.

[0024] The beneficial effects of the power distribution cabinet provided by the present invention are as follows: by setting a blower and a guide device in the cabinet, the blower provides airflow and the guide device changes the flow direction of the airflow after entering the cabinet, which can not only cool the inside of the cabinet evenly and avoid local overheating in the area far from the air inlet, but also allow circuit equipment with high heat generation power to be air-cooled for a longer time or at a higher frequency, while circuit equipment with low heat generation power is air-cooled for a shorter time or at a lower frequency, thereby adaptively meeting the heat dissipation needs of circuit equipment with different heat generation power. Attached Figure Description

[0025] Figure 1 This is a perspective view of the power distribution cabinet provided by the present invention;

[0026] Figure 2 This is a schematic diagram of the internal structure of the power distribution cabinet provided by the present invention;

[0027] Figure 3 This is a partial structural schematic diagram of the air guiding device in this invention;

[0028] Figure 4 This is a frontal schematic diagram of the drive assembly of the air guide device in this invention;

[0029] Figure 5 This is a side view of the drive assembly of the air guide device in this invention;

[0030] Figure 6 This is a perspective view of the protective cover in this invention.

[0031] In the picture:

[0032] 1. Cabinet; 101. Electrical cavity; 102. Air intake cavity; 1021. Air intake port; 11. Air intake port; 12. Air outlet port; 13. Motor box; 14. Sealing cover; 141. Handle; 142. Magnet; 15. Air duct protective cover; 16. Baffle;

[0033] 2. Blowing device; 21. Fan; 22. Air duct; 221. Connecting pipe; 222. Horizontal pipe; 223. Vertical pipe; 224. Limiting sleeve;

[0034] 3. Air guide device; 31. Air guide box; 311. Corrugated pipe; 312. Air outlet; 32. Drive assembly; 321. Motor; 322. Turntable; 3221. Transmission component; 323. Transmission rod; 324. Swing shaft; 325. Limiting rod; 33. Protective cover; 331. Through slot;

[0035] 4. Filtering device; 5. Drying device. Detailed Implementation

[0036] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention 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 the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0037] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0038] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] The following is based on Figures 1 to 6 The power distribution cabinet provided by the present invention will be described with two embodiments.

[0040] Example 1

[0041] Reference Figure 1 As shown, the power distribution cabinet provided by the present invention includes a cabinet body 1, a blower 2, and a guide air device 3.

[0042] Among them, such as Figure 1 , Figure 2 As shown, the cabinet 1 contains an electrical cavity 101 and an air inlet cavity 102. The electrical cavity 101 houses an air guide device 3 and various electrical circuit devices, while the air inlet cavity 102 houses a blower device 2. The side wall of the electrical cavity 101 has an air inlet 11 and an air outlet 12, and the electrical cavity 101 and the air inlet cavity 102 are connected through the air inlet 11. Optionally, in this embodiment, as... Figure 2 As shown, the air intake chamber 102 is located above the electrical cavity 101, which can reduce the floor space occupied by the cabinet 1; the electrical cavity 101 is equipped with an anti-slip pad, which facilitates the installation of electrical equipment.

[0043] like Figure 2 As shown, an air intake hole 1021 is provided at the top of the air intake chamber 102. Driven and guided by the blower 2, outside air enters the air intake chamber 102 through the air intake hole 1021, and then enters the electrical cavity 101 through the air intake hole 11 to cool the circuit equipment. After absorbing heat, the air is discharged from the cabinet 1 through the air outlet 12, thereby reducing the temperature of the circuit equipment and the electrical cavity 101. Optionally, in this embodiment, a stainless steel baffle 16 is provided above the air intake hole 1021 to prevent rainwater and debris from falling into the air intake hole 1021 and damaging the blower 2. Furthermore, the surface of the baffle 16 is coated with an anti-rust coating to prevent damage from rust.

[0044] Continue to refer to Figure 2 As shown, the air blowing device 2 includes an air duct 22 and a fan 21. The air duct 22 is composed of multiple interconnected air pipes and is connected to the air inlet 11. The fan 21 drives the air entering the air intake chamber 102 from the air intake 1021, through the multiple air pipes, and finally into the cabinet 1 through the air inlet 11. The air guide device 3 is located inside the cabinet 1 and is connected to the air inlet 11. It can guide the airflow direction of the air entering the cabinet 1 from the air inlet 11, thereby providing longer (or higher frequency) air cooling for circuit equipment with strong heat generation and shorter (or lower frequency) air cooling for circuit equipment with weak heat generation, meeting the different heat dissipation needs of circuit equipment with different heat generation capacities.

[0045] Specifically, in this embodiment, reference is made to... Figure 2 As shown, the blower device 2 includes a connecting pipe 221, a horizontal pipe 222, and a vertical pipe 223 connected in sequence. The connecting pipe 221 is connected to the output end of the blower 21 and to the horizontal pipe 222. The horizontal pipe 222 is connected to the upper opening of the vertical pipe 223, and the lower opening of the vertical pipe 223 is connected to the air inlet 11, thereby introducing the airflow driven by the blower 21 into the air inlet 11. Optionally, an air duct protective cover 15 is provided on the outside of the cabinet 1. The horizontal pipe 222 is fixed in the air inlet chamber 102 by a limiting sleeve 224, and the vertical pipe 223 is fixed between the air duct protective cover 15 and the cabinet 1 by a limiting sleeve 224. This not only fixes the air duct 22 and reduces vibration, but also protects the part of the air duct 22 located outside the cabinet 1.

[0046] like Figure 3 As shown, the air guiding device 3 includes an air guiding box 31 and a drive assembly 32. The air guiding box 31 has an air inlet and an air outlet 312. The air inlet is flexibly connected to the air inlet hole 11, allowing the air guiding box 31 to change its position. The air outlet 312 is equipped with a fan blade or other structure that can guide the airflow direction. By adjusting the facing direction of the air outlet 312, the airflow direction can be adjusted to provide air cooling for different durations for circuit equipment with different heat generation capacities.

[0047] refer to Figure 4 , Figure 5 As shown, the drive component 32 is connected to the air guide box 31, which can provide power for the air guide box 31 to change its position and control the position change process of the air guide box 31. This can make the airflow uniformly cool the inside of the cabinet 1, and can also adaptably meet the heat dissipation needs of local overheated areas inside the cabinet 1.

[0048] By installing a blower 2 and an air guide 3 in the cabinet 1, the blower 2 provides airflow and the air guide 3 changes the flow direction of the airflow after entering the cabinet 1. This not only enables uniform cooling inside the cabinet 1 and avoids local overheating in areas far from the air inlet 11, but also allows circuit equipment with higher heat generation power to be air-cooled for a longer duration or at a higher frequency, while circuit equipment with lower heat generation power is air-cooled for a shorter duration or at a lower frequency, thus adaptively meeting the heat dissipation needs of circuit equipment with different heat generation power.

[0049] Optionally, a flexible tube such as a corrugated pipe 311 or a gooseneck tube can be used to connect the air guide box 31 and the air inlet 11, that is, between the air inlet and the air inlet 11, so that the air guide box 31 can be adjusted in position and connected to the air inlet 11. Of course, since there is no strict requirement for a sealed connection between the air guide box 31 and the air inlet 11, a rigid tube can also be installed at the air inlet 11. The rigid tube is inserted into the air inlet 11, so that the air guide box 31 swings around the center position of the air inlet 11, which can achieve a similar technical effect.

[0050] refer to Figure 3 , Figure 4 As shown, the drive assembly 32 includes a motor 321, a turntable 322, and a transmission rod 323. The motor 321 is fixedly installed, and its output end is connected to the turntable 322, enabling the turntable 322 to rotate. Exemplarily, in this embodiment, a motor 321 housing 13 is provided outside the cabinet 1. The motor 321 housing 13 is T-shaped, and the motor 321 is fixedly installed inside the motor 321 housing 13 to prevent the motor 321 from interfering with the circuitry within the electrical cavity 101. The output end of the motor 321 passes through the side wall of the cabinet 1, while the turntable 322 is located inside the cabinet 1 and rotates about the output end of the motor 321 as an axis.

[0051] The transmission rod 323 has two ends: a transmission end and a fulcrum end. A limit rod 325 is mounted on the transmission end, and a swing shaft 324 is mounted on the fulcrum end. A transmission groove is provided between the fulcrum end and the transmission end. One end of the limit rod 325 is mounted on the transmission end, and the other end is rotatably connected to the air guide box 31, allowing the air guide box 31 to adjust its position following the movement of the limit rod 325. The swing shaft 324 is fixedly installed in the cabinet 1 and rotatably connected to the transmission rod 323. The transmission rod 323 can swing around the swing shaft 324, thereby moving the limit rod 325. A transmission component 3221 is fixedly installed on the surface of the turntable 322. The transmission component 3221 is inserted into the transmission groove and slides away from or toward the fulcrum end in the transmission groove during the rotation of the turntable 322. It selectively applies pressure to the inner wall of the transmission groove, thereby converting the rotational motion of the output end of the motor 321 into the swing of the transmission rod 323, which is then transmitted to the air guide box 31, enabling the air guide box 31 to swing over a wide range.

[0052] Optionally, in embodiments where the space inside the cabinet 1 is relatively small, the turntable 322 and transmission rod 323 can be placed inside the cabinet 1, or they can be placed inside the motor 321 box 13, or even the air guide box 31 can be directly connected to the output end of the motor 321, thereby meeting the space limitations inside the cabinet 1. In this case, because the space inside the cabinet 1 is relatively small, even without expanding the adjustable position range of the air guide box 31 through the turntable 322 and transmission rod 323, the airflow can still cover most of the internal space of the cabinet 1, meeting the heat dissipation requirements.

[0053] Preferably, in this embodiment, such as Figure 2 As shown, the air inlet 11 is located in the middle of the side wall of the electrical cavity 101. By setting the aforementioned turntable 322 and transmission rod 323, the range of airflow that can be blown can be further expanded, increasing the heat dissipation area inside the cabinet 1 and reducing the heat dissipation blind area inside the cabinet 1.

[0054] Furthermore, a protective cover 33 is also provided outside the air guide box 31, which can isolate the air guide box 31 from the circuit equipment and play a protective role. For example, such as Figure 6 As shown, the protective cover 33 is semi-circular in shape and consists of a curved panel and two semi-circular plates, with the two semi-circular plates respectively connected to one side of the curved panel. The curved panel is provided with multiple air outlet slots to allow airflow to pass through; the semi-circular plates are provided with through slots 331 to allow the aforementioned limiting rod 325 to pass through and slide within the through slots 331, thus preventing the installation of the protective cover 33 from affecting the position adjustment of the air guide box 31.

[0055] Optionally, a filter device 4 is also provided in the air intake chamber 102. The filter device 4 includes a filter plate, which is disposed between the air intake hole 1021 and the fan 21. It can filter the airflow entering the fan 21 to prevent dust and other impurities from entering and avoid dust accumulation inside the cabinet 1.

[0056] Optionally, such as Figure 2 As shown, in this embodiment, a guide air device 3 is provided on each side of the cabinet 1, and two blower air devices 2 are correspondingly provided in the air inlet cavity at the top of the cabinet 1. Each blower air device 2 is connected to the guide air device 3 on the same side, which can increase the heat dissipation efficiency inside the cabinet 1 and further reduce the heat dissipation blind spots inside the cabinet 1. Preferably, the air ducts 22 of the two blower air devices 2 are connected, which can improve robustness. Even if one blower air device 2 fails, cooling can still be carried out within the original heat dissipation range, avoiding the occurrence of heat dissipation blind spots in the event of a failure of one blower air device 2.

[0057] Furthermore, the air intake chamber 102 is also provided with a maintenance port, on which a sealing cover 14 is movably mounted, facilitating the installation and maintenance of the air blowing device 2 and other components within the air intake chamber 102. Specifically, the sealing cover 14 is movably mounted via a hinge and is equipped with a magnet 142, allowing it to be magnetically fixed to the cabinet 1. A handle 141 is also installed on the outer side of the sealing cover 14, allowing the operator to grip it to counteract the magnetic force and rotate the sealing cover 14, exposing the air blowing device 2 and other components within the air intake chamber 102.

[0058] Example 2

[0059] Based on Embodiment 1, this embodiment includes a drying device 5, which can further protect the circuit equipment inside the electrical cavity 101 and prevent the circuit equipment from being damaged by humid air.

[0060] Specifically, such as Figure 2 As shown, the drying device 5 includes a drying box containing a desiccant. The box body has perforations, allowing the desiccant to absorb moisture from the air flowing through and near the drying box.

[0061] Furthermore, a reversible fan can be used. When the humidity inside cabinet 1 is normal, it can blow air into cabinet 1 for cooling and heat dissipation. Alternatively, when the humidity inside cabinet 1 is high and significantly higher than the outside humidity, the fan 21 can be reversed for a short period, causing the humid air inside cabinet 1 to flow rapidly to the drying box. This allows for more effective removal of moisture from the electrical cavity 101 through suction. Since the humid air absorbs moisture through the drying box before being discharged to the vicinity of cabinet 1, it does not increase the humidity near cabinet 1. Therefore, while suctioning air, it does not reduce drying efficiency by drawing in air with increased humidity from the vicinity of cabinet 1.

[0062] Understandably, the desiccant inside the drying box can also be replaced relatively easily through the aforementioned sealing cover 14.

[0063] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A power distribution cabinet, characterized in that, include: Cabinet (1), the cabinet (1) is provided with an air inlet (11) and an air outlet (12); A blower (2) is provided, comprising an air duct (22) and a fan (21). One end of the air duct (22) is connected to an air inlet (11), and the other end of the air duct (22) is provided with the fan (21). The fan (21) drives the airflow through the air duct (22) and the air inlet (11) into the cabinet (1) and out through the air outlet (12). An air guide device (3) is disposed inside the cabinet (1). The air guide device (3) includes an air guide box (31) and a drive assembly (32). The air guide box (31) is movably disposed and communicates with the air inlet (11). The air guide box (31) has an air outlet (312). The airflow enters the air guide box (31) through the air inlet (11) and then flows out of the air guide box (31) in the direction directly opposite to the air outlet (312). The drive assembly (32) is driven to the air guide box (31). Under the drive of the drive assembly (32), the air guide box (31) can change the direction directly opposite to the air outlet (312). The drive assembly (32) includes: Motor (321), wherein the motor (321) is fixedly installed; Turntable (322), the turntable (322) is connected to the output end of the motor (321), and the turntable (322) is fixedly provided with a transmission component (3221) on its surface. A transmission rod (323) has one end as a transmission end, which is connected to the air guide box (31). The other end of the transmission rod (323) is a fulcrum end, which can rotate around the fulcrum end. The transmission rod (323) is also provided with a transmission groove, which is located between the transmission end and the fulcrum end. A transmission component (3221) is inserted into the transmission groove. When the turntable (322) rotates, the transmission component (3221) can slide away from or towards the fulcrum end in the transmission groove. A limit rod (325) is installed on the transmission end, and a swing shaft (324) is installed on the fulcrum end. One end of the limit rod (325) is installed on the transmission end, and the other end is rotatably connected to the air guide box (31), so that the air guide box (31) can follow the transmission end. The position is adjusted by the movement of the limiting rod (325). The swing shaft (324) is fixedly installed in the cabinet (1) and rotatably connected to the transmission rod (323). The transmission rod (323) can swing around the swing shaft (324) as the center, thereby moving the limiting rod (325). The cabinet (1) includes an air inlet chamber (102) and an electrical cavity (101). The air inlet chamber (102) is provided with a filter device (4) and a blower device (2). The electrical cavity (101) is provided with electrical equipment. The air inlet chamber (102) is connected to the electrical cavity (101) through the air inlet hole (11). The air inlet chamber (102) has an air intake hole (1021). Outside air enters the air passage (22) in sequence through the air intake hole (1021), the filter device (4) and the fan (21).

2. The power distribution cabinet according to claim 1, characterized in that, The air outlet (312) is provided on one side of the air guide box (31), and the air inlet is provided on the other side of the air guide box (31). A flexible hose is connected between the air inlet and the air inlet hole (11).

3. The power distribution cabinet according to claim 1, characterized in that, A motor box (13) is also provided on the outside of the cabinet (1). The motor (321) is fixedly installed in the motor box (13). The output end of the motor (321) passes through the side wall of the cabinet (1) and is connected to the turntable (322).

4. The power distribution cabinet according to claim 1, characterized in that, A drying device (5) is also provided in the air intake chamber (102). Outside air enters the air passage (22) through the air intake hole (1021), the drying device (5), the filter device (4) and the fan (21) in sequence.

5. The power distribution cabinet according to claim 4, characterized in that, The fan (21) includes a reversible fan that can control the direction of airflow between the air intake chamber (102) and the electrical chamber (101).

6. The power distribution cabinet according to claim 4, characterized in that, The cabinet (1) has a maintenance port, which is connected to the air inlet (102), and the maintenance port is movably equipped with a sealing cover (14).

7. The power distribution cabinet according to claim 1, characterized in that, The air inlet (11) is located in the middle of the side wall of the electrical cavity (101).

8. The power distribution cabinet according to claim 7, characterized in that, An air duct protective cover (15) is provided on the outside of the cabinet (1), and at least part of the air duct (22) is located between the air duct protective cover (15) and the cabinet (1).

Images