CN221177063U - A power distribution cabinet - Google Patents

Abstract

The application discloses a power distribution cabinet, relates to the technical field of power distribution systems, and can reduce the risk of faults of the power distribution cabinet. The power distribution cabinet comprises a box body, a cooling fan, a shielding piece and a defogging net. The box has the installation cavity, and is equipped with air inlet and gas vent on the box, air inlet and gas vent and installation cavity intercommunication. The cooling fan is connected with the box body, and air flow attracted by the cooling fan flows into the mounting cavity through the air inlet and is discharged through the air outlet. The shielding piece is arranged in the mounting cavity and is connected with the box body. The shutter is movable relative to the housing to open or close the air inlet. The shielding piece is provided with a filter cavity and is provided with an inlet and an outlet which are communicated with the filter cavity. In the case where the shutter closes the air inlet, the air inlet communicates with the inlet. The defogging net is arranged at the outlet and is connected with the shielding piece. The demister net covers the outlet. The application can be used for protecting power distribution equipment.

Description

A power distribution cabinet

Technical Field

The present application relates to the technical field of power distribution systems, and in particular to a power distribution cabinet.

Background technique

The distribution cabinet is divided into power distribution cabinet, lighting distribution cabinet and metering cabinet, which is the final equipment of the power distribution system. The distribution cabinet is a general term for the motor control center, which is mainly used to distribute the power of a circuit of the upper-level distribution equipment to the nearest load. The distribution cabinet is usually installed outdoors and is often affected by weather disasters such as wind and rain.

In the related art, the power distribution cabinet includes a box body and electronic components, the box body has an installation cavity, and the electronic components are arranged in the installation cavity. Among them, the box body is provided with heat dissipation holes, which are connected to the installation cavity and are used to release the heat generated by the electronic components when working to the outside of the box. However, rainwater can easily enter the installation cavity through the heat dissipation holes, causing the electronic components in the installation cavity to short-circuit, resulting in malfunction of the power distribution cabinet and inability to be used normally.

Utility Model Content

The present application provides a power distribution cabinet, which can reduce the risk of failure of the power distribution cabinet.

In order to achieve the above objectives, this application adopts the following technical solutions:

An embodiment of the present application provides a power distribution cabinet, which includes a box body, a cooling fan, a shielding member and a demisting net.

The housing has an installation cavity, and an air inlet and an exhaust port are provided on the housing, and the air inlet and the exhaust port are communicated with the installation cavity. A cooling fan is connected to the housing, and the airflow attracted by the cooling fan flows into the installation cavity through the air inlet and is discharged through the exhaust port. A shielding member is arranged in the installation cavity and is connected to the housing. The shielding member can be moved relative to the housing to open or close the air inlet. The shielding member has a filter cavity, and is provided with an inlet and an outlet, and the inlet and the outlet are communicated with the filter cavity. When the shielding member closes the air inlet, the air inlet is communicated with the inlet. A demisting net is arranged at the outlet and is connected to the shielding member. The demisting net covers the outlet.

The power distribution cabinet provided in the embodiment of the present application, when the cooling fan is running, the air outside the box can enter the installation cavity through the air inlet, and the air in the installation cavity can be discharged to the outside of the box through the exhaust port, thereby bringing the heat in the installation cavity to the outside of the box, so that the power distribution cabinet can be cooled. When it rains, the shielding member can be controlled to move relative to the box body to close the air inlet. In this way, the risk of rainwater entering the installation cavity through the air inlet can be reduced, thereby reducing the risk of short circuit of electronic components in the installation cavity, and further reducing the risk of failure of the power distribution cabinet. At this time, the airflow attracted by the cooling fan can enter the filter cavity through the air inlet and the inlet in turn, and after filtering out the moisture through the demisting net, enter the installation cavity through the outlet, and finally be discharged through the exhaust port. In this way, the power distribution cabinet can dissipate heat normally, and the demisting net can also prevent moisture from entering the installation cavity to reduce the risk of failure of the power distribution cabinet.

Further, the box body includes a bottom plate, a top plate and a side plate. The top plate is arranged opposite to the bottom plate. The side plate is connected to the bottom plate and the top plate, and forms a mounting cavity with the bottom plate and the top plate. The air inlet is arranged on the side plate, and the shielding member is arranged on the side plate and can move relative to the side plate.

Furthermore, the power distribution cabinet also includes a fixed block, a guide rod, a slider and a connecting rod. The fixed block is arranged in the installation cavity and connected to the side plate. The guide rod is arranged in the installation cavity and connected to the fixed block. The guide rod extends along a first direction, and the first direction is perpendicular to the surface of the bottom plate close to the top plate. There is a gap between the guide rod and the side plate. The slider is sleeved on the guide rod and can slide relative to the guide rod. The connecting rod is connected to the slider and the shielding member.

Furthermore, the power distribution cabinet further comprises a driving device which is connected to the shielding member and is used for driving the shielding member to move relative to the box body.

Further, the driving device includes a driving motor, a winding roller and a pull rope. The driving motor is arranged in the mounting cavity and connected to the top plate. The driving motor has an output shaft. The winding roller is located on the side of the slider away from the bottom plate and is connected to the output shaft. One end of the pull rope is connected to the slider and the other end is connected to the winding roller, and the pull rope is wound around the winding roller.

Furthermore, the power distribution cabinet also includes a temperature sensor and a controller. The temperature sensor is arranged in the installation cavity and is used to detect the temperature in the installation cavity. The controller is electrically connected to the temperature sensor and the cooling fan and is used to control the cooling fan to operate when the temperature detected by the temperature sensor is greater than a first preset temperature.

Furthermore, the power distribution cabinet further includes a humidity sensor. The humidity sensor is arranged on the peripheral side of the box body and is used to detect the humidity of the air. The controller is also electrically connected to the humidity sensor and the driving device, and is used to control the driving device to drive the shielding member to move relative to the box body to close the air inlet when the humidity detected by the humidity sensor is greater than a first preset humidity.

Furthermore, the exhaust port is arranged on the top plate. The power distribution cabinet also includes an exhaust box. The exhaust box is arranged on a side of the top plate away from the bottom plate and is connected to the top plate. An air inlet and an air outlet are arranged on the exhaust box, and an air flow channel is formed between the air inlet and the air outlet. The air inlet is connected to the exhaust port, and the air outlet is arranged on the end face of the exhaust box in the second direction, and the second direction is parallel to the surface of the bottom plate close to the top plate.

Further, the exhaust box includes a mounting plate, a cover plate and a baffle. The mounting plate is arranged on the top plate, and the air inlet is arranged on the mounting plate. The cover plate is arranged opposite to the mounting plate and is located on a side of the mounting plate away from the top plate. The baffle is connected to the mounting plate and the cover plate, and forms an air flow channel with the mounting plate and the cover plate. The air outlet is arranged on the baffle.

Furthermore, the power distribution cabinet further includes a windshield. The windshield is disposed at the air outlet and is connected to the cover plate. The windshield can rotate relative to the cover plate to open or close the air outlet. When the cooling fan is running, the airflow attracted by the cooling fan can drive the windshield to rotate relative to the cover plate to open the air outlet. When the cooling fan stops running, the windshield can rotate relative to the cover plate to close the air outlet under the action of gravity.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

FIG1 is a cross-sectional view of a power distribution cabinet provided in some embodiments of the present application;

FIG. 2 is a structural diagram of a power distribution cabinet provided in some embodiments of the present application.

Reference numerals:

100-power distribution cabinet; 1-box; 11-installation cavity; 12-air inlet; 121-air inlet hole; 13-exhaust outlet; 14-bottom plate; 15-top plate; 16-side plate; 2-exhaust box; 21-air inlet; 22-air outlet; 23-air flow channel; 24-installation plate; 25-cover plate; 26-baffle; 3-cooling fan; 4-temperature sensor; 5-controller; 6-wind shield; 7-shielding member; 71-filter cavity; 72-inlet; 73-outlet; 8-defogger; 9-fixed block; 10-guide rod; 20-slider; 30-connecting rod; 40-driving device; 401-driving motor; 4011-output shaft; 402-winding roller; 403-pull rope; 50-humidity sensor; 60-door body; 70-base.

Detailed ways

The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

It should be noted that, in practical applications, due to the limitations of equipment accuracy or installation errors, absolute parallel or vertical effects are difficult to achieve. The description of "vertical", "parallel" or "same direction" in this application is not an absolute limiting condition, but means that a vertical or parallel structural setting can be achieved within a preset error range, and the corresponding preset effect can be achieved. In this way, the technical effect of the defined feature can be maximized, and the corresponding technical solution is easy to implement, with high feasibility. For example, "vertical" includes absolute vertical and approximate vertical, wherein the acceptable deviation range of approximate vertical can also be, for example, a deviation within 5°. "Parallel" includes absolute parallel and approximate parallel, wherein the acceptable deviation range of approximate parallel can also be, for example, a deviation within 5°. "Same direction" includes absolute same direction and approximate same direction, wherein the acceptable deviation range of approximate same direction can also be, for example, a deviation within 5°.

In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. It can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

In the present application, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

In the embodiments of the present application, the words "exemplarily" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

The distribution cabinet is divided into power distribution cabinet, lighting distribution cabinet and metering cabinet, which is the final equipment of the power distribution system. The distribution cabinet is a general term for the motor control center, which is mainly used to distribute the power of a circuit of the upper-level distribution equipment to the nearest load, and protect, monitor and control the operation of the load.

Distribution cabinets are mainly used in various occasions such as power plants, substations, petrochemicals, metallurgy and steel rolling, light industry and textiles, factories and mines, residential areas and high-rise buildings. At present, most distribution cabinets are installed outdoors and are often affected by weather disasters such as wind and rain.

In the related art, the power distribution cabinet includes a box body, which has an installation cavity, and the installation cavity is used to install electronic components. Among them, the box body is provided with heat dissipation holes, which are connected to the installation cavity and are used to release the heat generated by the electronic components when they are working to the outside of the box. However, in heavy rain weather, rainwater can easily enter the installation cavity through the heat dissipation holes, and the electronic components in the installation cavity are prone to short circuit after contacting rainwater, and then burn, causing the power distribution cabinet to malfunction and unable to be used normally.

Based on this, referring to Figure 1, which is a cross-sectional view of a power distribution cabinet provided in some embodiments of the present application, the present application proposes a power distribution cabinet 100, which can reduce the risk of rainwater entering the installation cavity 11, thereby reducing the risk of electronic components being burned, and further reducing the risk of failure of the power distribution cabinet 100.

As shown in FIG1 , the power distribution cabinet 100 includes a box body 1, and the box body 1 has an installation cavity 11, and the installation cavity 11 can be used to install electronic components. Among them, the box body 1 is provided with an air inlet 12 and an exhaust port 13, and the air inlet 12 and the exhaust port 13 are connected to the installation cavity 11. In this way, the air outside the box body 1 can enter the installation cavity 11 through the air inlet 12, and the air in the installation cavity 11 can also be discharged to the outside of the box body 1 through the exhaust port 13, so that the air in the installation cavity 11 and the air outside the box body 1 can circulate with each other.

Exemplarily, as shown in FIG1 , the box body 1 includes a bottom plate 14, a top plate 15 and a side plate 16. The top plate 15 is arranged opposite to the bottom plate 14, the side plate 16 is connected to the bottom plate 14 and the top plate 15, and the side plate 16, the bottom plate 14 and the top plate 15 enclose a mounting cavity 11. Arranged in this way, the structure of the box body 1 is simple and easy to implement. Among them, the side plate 16 can be arranged around the circumference of the bottom plate 14 and the top plate 15, thereby further simplifying the structure of the box body 1.

It is understandable that the side panel 16 can be formed by connecting a plurality of sub-panels in sequence. For example, the side panel 16 includes two first sub-panels arranged opposite to each other and two second sub-panels arranged opposite to each other, wherein each first sub-panel is located between the two second sub-panels and connected to the two second sub-panels; each second sub-panel is located between the two first sub-panels and connected to the two first sub-panels.

It should be noted that, when the box body 1 includes a bottom plate 14, a top plate 15 and a side plate 16, the air inlet 12 and the air outlet 13 can be arranged on the side plate 16 or on the top plate 15. The selection can be made according to actual conditions, and this application does not make any specific limitation on this.

1, the air inlet 12 is provided on the side plate 16, and the exhaust port 13 is provided on the top plate 15. On this basis, if the side plate 16 includes two first sub-plates and two second sub-plates, the air inlet 12 can be provided on the first sub-plate, and the air inlet 12 can be provided on both first sub-plates.

The air inlet 12 may include a plurality of air inlet holes 121, and the plurality of air inlet holes 121 are arranged at intervals. In addition, the surface of the air inlet hole 121 close to the bottom plate 14 may be arranged to be inclined toward the top plate 15 to guide the air flow toward the exhaust port 13. In this way, the circulation speed of the air in the installation cavity 11 and the air outside the box body 1 can be accelerated, which is conducive to improving the heat dissipation efficiency of the power distribution cabinet 100.

As shown in FIG1 , when the exhaust port 13 is disposed on the top plate 15 , the power distribution cabinet 100 may further include an exhaust box 2 . The exhaust box 2 is disposed on a side of the top plate 15 away from the bottom plate 14 and is connected to the top plate 15 .

On this basis, the exhaust box 2 is provided with an air inlet 21 and an air outlet 22, and an air flow channel 23 is formed between the air inlet 21 and the air outlet 22. The air inlet 21 is connected to the exhaust port 13, and the air outlet 22 is arranged on the end surface of the exhaust box 2 in the second direction Y. It should be noted that the second direction Y is parallel to the surface of the bottom plate 14 close to the top plate 15.

The number of the air outlets 22 may be one or more, and the number may be selected according to actual conditions, and the present application does not make any specific limitation on this.

When the power distribution cabinet 100 includes the exhaust box 2 , the air in the installation cavity 11 can enter the air flow channel 23 through the exhaust port 13 and the air inlet 21 in sequence, and be exhausted through the air outlet 22 .

It is understandable that the exhaust box 2 can shield the exhaust port 13, so that the risk of rainwater directly falling into the exhaust port 13 and entering the installation cavity 11 through the exhaust port 13 can be reduced. In this way, the risk of short circuit of electronic components in the installation cavity 11 can be reduced, thereby reducing the risk of failure of the distribution cabinet 100.

It should be noted that the present application does not impose any specific limitation on the shape of the exhaust box 2, and the shape can be selected according to actual conditions.

Exemplarily, as shown in FIG. 2 , FIG. 2 is a structural diagram of a power distribution cabinet provided in some embodiments of the present application. The exhaust box 2 includes a mounting plate 24, a cover plate 25 and a baffle plate 26, wherein the air outlet 22 is arranged on the baffle plate 26. On this basis, referring to FIG. 1 , the mounting plate 24 is arranged on the top plate 15, and the air inlet 21 is arranged on the mounting plate 24. The cover plate 25 is arranged opposite to the mounting plate 24, and is located on the side of the mounting plate 24 away from the top plate 15. The baffle plate 26 is connected to the mounting plate 24 and the cover plate 25, and forms an air flow channel 23 with the mounting plate 24 and the cover plate 25.

In this way, the exhaust box 2 has a simple structure and is easy to implement. The baffle plate 26 can be arranged around the edges of the mounting plate 24 and the cover plate 25, thereby further simplifying the structure of the exhaust box 2.

1 , the power distribution cabinet 100 provided in the embodiment of the present application may further include a cooling fan 3 , which is connected to the box body 1 , and the airflow attracted by the cooling fan 3 flows into the installation cavity 11 through the air inlet 12 and is discharged through the exhaust port 13 .

In this way, when the cooling fan 3 is running, the air in the installation cavity 11 and the air outside the box body 1 can be promoted to circulate with each other, so as to quickly remove the heat generated by the electronic components during operation from the installation cavity 11. In this way, the temperature in the installation cavity 11 can be reduced, thereby reducing the risk of damage to the electronic components.

The heat dissipation fan 3 may be arranged in the installation cavity 11, may be arranged outside the installation cavity 11, or may be arranged partially in the installation cavity 11. The specific selection may be made according to the actual situation, and this application does not make any specific limitation on this.

Exemplarily, as shown in FIG1 , the heat dissipation fan 3 is disposed in the air outlet, which is helpful to increase the speed of gas flow, thereby improving the heat dissipation efficiency of the power distribution cabinet 100 .

1 , when the power distribution cabinet 100 includes a heat dissipation fan 3 , the power distribution cabinet 100 may further include a temperature sensor 4 and a controller 5 .

On this basis, the temperature sensor 4 can be arranged in the installation cavity 11 to detect the temperature in the installation cavity 11. The controller 5 is electrically connected to the temperature sensor 4 and the cooling fan 3 to control the cooling fan 3 to operate when the temperature detected by the temperature sensor 4 is greater than the first preset temperature. In this way, the power distribution cabinet 100 can automatically turn on the cooling fan 3 when the temperature in the installation cavity 11 is high to accelerate the heat dissipation of the power distribution cabinet 100.

Among them, the first preset temperature can be set according to actual conditions, and this application does not make any specific limitations on this.

It should be noted that the controller 5 can also be configured to control the cooling fan 3 to stop running when the temperature detected by the temperature sensor 4 is lower than the second preset temperature. In this way, the power distribution cabinet 100 can automatically turn off the cooling fan 3 when the temperature in the installation cavity 11 is low, so as to reduce the energy consumption of the power distribution cabinet 100.

Similarly, the second preset temperature can be set according to actual conditions, and this application does not make any specific limitations on this.

Referring to FIG2 , when the power distribution cabinet 100 includes the cooling fan 3 (as shown in FIG1 ), and the exhaust box 2 includes the mounting plate 24, the cover plate 25, and the baffle plate 26, the power distribution cabinet 100 may further include a wind shield 6. The wind shield 6 is disposed at the air outlet 22 and is connected to the cover plate 25. The wind shield 6 can rotate relative to the cover plate 25 to open or close the air outlet 22.

It is understandable that there are multiple ways to achieve the rotation of the wind shield plate 6 relative to the cover plate 25, which can be selected according to actual conditions, and the present application does not make any specific restrictions on this.

Exemplarily, the wind shield 6 has a first end and a second end opposite to each other, the first end is hinged to the cover plate 25 , and the second end can rotate relative to the first end to open or close the air outlet 22 .

It should be noted that the wind shield 6 can be made of a material with a relatively low density. In this way, when the cooling fan 3 is running, the airflow attracted by the cooling fan 3 can drive the wind shield 6 to rotate relative to the cover plate 25 to open the air outlet 22. When the cooling fan 3 stops running, the wind shield 6 can rotate relative to the cover plate 25 to close the air outlet 22 under the action of gravity.

In this way, when the cooling fan 3 stops running, the wind shield 6 can close the air outlet 22 to reduce the risk of rainwater entering the air flow channel 23 through the air outlet 22 and flowing into the installation cavity 11 through the air flow channel 23. In this way, the risk of short circuit of electronic components in the installation cavity 11 can be further reduced, thereby reducing the risk of failure of the power distribution cabinet 100.

As shown in Fig. 1, the power distribution cabinet 100 provided in the embodiment of the present application may further include a shielding member 7, which is disposed in the installation cavity 11 and connected to the box body 1. The shielding member 7 can move relative to the box body 1 to open or close the air inlet 12.

In this way, when it rains, the shielding member 7 can be controlled to move relative to the box body 1 to close the air inlet 12. In this way, the risk of rainwater entering the installation cavity 11 through the air inlet 12 can be reduced, thereby reducing the risk of short circuit of electronic components in the installation cavity 11, and further reducing the risk of failure of the power distribution cabinet 100.

It can be understood that, as shown in Figure 1, when the side panel 16 includes two first sub-panels and both first sub-panels are provided with air inlets 12, the number of shielding members 7 can be set to two, each shielding member 7 corresponds to a first sub-panel, and is used to open or close the air inlet 12 on the corresponding first sub-panel.

It should be noted that the shielding member 7 may be provided with a filter cavity 71, and an inlet 72 and an outlet 73 connected to the filter cavity 71. When the shielding member 7 closes the air inlet 12, the air inlet 12 is connected to the inlet 72. In this way, the air outside the box body 1 may enter the filter cavity 71 through the air inlet 12 and the inlet 72 in sequence, and enter the installation cavity 11 through the outlet 73. The outlet 73 may be provided at one end of the shielding member 7 close to the top plate 15.

On this basis, referring to FIG1 , the power distribution cabinet 100 may further include a demisting net 8, which can absorb moisture in the air to achieve a demisting effect. The demisting net 8 is disposed at the outlet 73 of the shielding member 7, is connected to the shielding member 7, and covers the outlet 73. It is understandable that the demisting net 8 may be made of filter cotton.

In this way, when the shielding member 7 closes the air inlet 12, the airflow attracted by the cooling fan 3 can enter the filter cavity 71 through the air inlet 12 and the inlet 72 in sequence, and after filtering out moisture through the demisting net 8, enter the installation cavity 11 through the outlet 73, and finally be discharged through the exhaust port 13. In this way, the power distribution cabinet 100 can dissipate heat normally, and the demisting net 8 can also prevent moisture from entering the installation cavity 11, so as to reduce the risk of failure of the power distribution cabinet 100.

It should be noted that, when the air inlet 12 is disposed on the side plate 16 , the shielding member 7 may also be disposed on the side plate 16 and may be movable relative to the side plate 16 to open or close the air inlet 12 .

It is understandable that there are multiple ways to achieve the movement of the shielding member 7 relative to the side plate 16, which can be selected according to actual conditions, and the present application does not make any specific limitations on this.

Exemplarily, as shown in FIG1 , the power distribution cabinet 100 further includes a fixed block 9, a guide rod 10, a slider 20 and a connecting rod 30. The fixed block 9 is disposed in the mounting cavity 11 and is connected to the side plate 16. The guide rod 10 is disposed in the mounting cavity 11 and is connected to the fixed block 9. The guide rod 10 extends along a first direction X, and the first direction X is perpendicular to the surface of the bottom plate 14 close to the top plate 15. There is a gap between the guide rod 10 and the side plate 16. The slider 20 is sleeved on the guide rod 10 and can slide relative to the guide rod 10. The connecting rod 30 is connected to the slider 20 and the shielding member 7.

In this way, it is only necessary to control the sliding block 20 to slide relative to the guide rod 10, so that the shielding member 7 can be driven to move relative to the side plate 16 through the connecting rod 30, and the structure is simple and easy to implement.

There may be two fixing blocks 9, which are spaced apart along the first direction X, and the guide rod 10 is disposed between the two fixing blocks 9 and connected to the two fixing blocks 9. In this way, the fixing block 9 can prevent the slider 20 from being separated from the guide rod 10, thereby preventing the shielding member 7 from falling off the side plate 16. In this way, the reliability of the connection between the shielding member 7 and the side plate 16 can be improved.

In some embodiments, as shown in FIG1 , the power distribution cabinet 100 further includes a driving device 40. The driving device 40 is connected to the shielding member 7 and is used to drive the shielding member 7 to move relative to the box body 1.

It can be understood that, by providing the driving device 40 , the distribution box can realize automatic control of the movement of the shielding member 7 relative to the box body 1 , thereby improving the user experience.

1, the driving device 40 may include a driving motor 401, which is disposed in the mounting cavity 11 and connected to the top plate 15. It is understood that the driving motor 401 has an output shaft 4011, and the number of the output shafts 4011 may be one or more.

On this basis, referring to FIG1 , the driving device 40 further includes a winding roller 402 and a pull rope 403. The winding roller 402 is located on the side of the slider 20 away from the bottom plate 14 and is connected to the output shaft 4011. One end of the pull rope 403 is connected to the slider 20 and the other end is connected to the winding roller 402, and the pull rope 403 is wound around the winding roller 402.

In this way, when the driving motor 401 is running, the output shaft 4011 can be used to drive the winding roller 402 to rotate, so that more pull ropes 403 are wound around the winding roller 402, or the pull ropes 403 wound around the winding roller 402 are released. In this way, the pull rope 403 can drive the slider 20 to slide along the guide rod 10, and then the connecting rod 30 can drive the shielding member 7 to move relative to the box body 1, so as to open or close the air inlet 12.

It should be noted that, as shown in FIG1 , when there are two shielding members 7, there may be two output shafts 4011 of the driving motor 401. In this case, the number of the winding rollers 402 and the pull ropes 403 may also be set to two. Each output shaft 4011 is connected to one winding roller 402, and each pull rope 403 is connected to one winding roller 402, and is used to drive one shielding member 7 to move relative to the box body 1.

In this way, the two shielding members 7 can be driven to move synchronously relative to the box body 1 by one driving motor 401, which has a simple structure and low implementation cost.

Referring to FIG. 1 , when the power distribution cabinet 100 includes a controller 5 and a drive device 40, the power distribution cabinet 100 may further include a humidity sensor 50. The humidity sensor 50 is disposed on the peripheral side of the box body 1 to detect the humidity of the air. For example, the humidity sensor 50 is disposed on a side of the cover plate 25 away from the mounting plate 24 and is connected to the cover plate 25.

It is understandable that when it rains, the humidity of the outside air will increase. Therefore, by detecting the humidity of the air, it is possible to determine whether it is raining and the intensity of the rain.

On this basis, the controller 5 is electrically connected to the humidity sensor 50 and the driving device 40, and is used to control the driving device 40 to drive the shielding member 7 to move relative to the box body 1 to close the air inlet 12 when the humidity detected by the humidity sensor 50 is greater than the first preset humidity. In this way, the power distribution cabinet 100 can automatically close the air inlet 12 when it rains to reduce the risk of rainwater entering the installation cavity 11.

Among them, the first preset humidity can be set according to actual conditions, and this application does not make any specific limitations on this.

It should be noted that the controller 5 can also be configured to control the driving device 40 to drive the shielding member 7 to move relative to the box body 1 to open the air inlet 12 when the humidity detected by the humidity sensor 50 is less than the second preset humidity. In this way, the power distribution cabinet 100 can automatically open the air inlet 12 when it is not raining, so as to improve the heat dissipation efficiency of the power distribution cabinet 100.

Similarly, the second preset humidity can be set according to actual conditions, and this application does not make any specific limitations on this.

In some embodiments, referring to Fig. 1, the box body 1 is provided with an opening, which is communicated with the installation cavity 11. It should be noted that the electronic components in the installation cavity 11 can be repaired or replaced through the opening.

On this basis, referring to FIG. 2 , the power distribution cabinet 100 may further include a door body 60 , which is connected to the box body 1 and can rotate relative to the box body 1 to open or close an opening.

It can be understood that, as shown in FIG. 1 , when the box body 1 includes a bottom plate 14 , a top plate 15 and a side plate 16 , the opening can be provided on the side plate 16 , and the door body 60 is hinged to the side plate 16 .

2 , the power distribution cabinet 100 provided in the embodiment of the present application may further include a base 70. In this case, the box body 1 is disposed on the base 70. The base 70 is used to provide support for the box body 1.

1 , when the box body 1 includes a bottom plate 14, a top plate 15 and a side plate 16, the box body 1 is disposed on a side of the bottom plate 14 away from the top plate 15 and connected to the bottom plate 14. That is, the bottom plate 14 is disposed on the base 70.

In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope described in the claims.

Claims (10)

1. A power distribution cabinet, comprising: A box body has a mounting cavity, and an air inlet and an air outlet are provided on the box body, and the air inlet and the air outlet are communicated with the mounting cavity; A cooling fan connected to the box body; air flow attracted by the cooling fan flows into the installation cavity through the air inlet and is discharged through the exhaust port; a shielding member, arranged in the installation cavity and connected to the box; the shielding member can move relative to the box to open or close the air inlet; the shielding member has a filter cavity, and is provided with an inlet and an outlet, the inlet and the outlet are in communication with the filter cavity; when the shielding member closes the air inlet, the air inlet is in communication with the inlet; A demisting net is arranged at the outlet and connected to the shielding member; the demisting net covers the outlet. 2. The power distribution cabinet according to claim 1, characterized in that the box body comprises: Base plate; A top plate, arranged opposite to the bottom plate; The side plate is connected to the bottom plate and the top plate, and forms the installation cavity with the bottom plate and the top plate; the air inlet is arranged on the side plate; the shielding member is arranged on the side plate and can move relative to the side plate. 3. The power distribution cabinet according to claim 2, further comprising: A fixing block, disposed in the mounting cavity and connected to the side plate; A guide rod is disposed in the mounting cavity and connected to the fixing block; the guide rod extends along a first direction, the first direction is perpendicular to a surface of the bottom plate close to the top plate; a gap is formed between the guide rod and the side plate; A sliding block is sleeved on the guide rod and can slide relative to the guide rod; A connecting rod is connected to the sliding block and the shielding member. 4. The power distribution cabinet according to claim 3, further comprising: A driving device is connected to the shielding member and is used to drive the shielding member to move relative to the box body. 5. The power distribution cabinet according to claim 4, characterized in that the driving device comprises: A driving motor is disposed in the mounting cavity and connected to the top plate; the driving motor has an output shaft; A winding roller, located on a side of the slider away from the bottom plate and connected to the output shaft; A pull rope, one end of which is connected to the slider, and the other end of which is connected to the winding roller; the pull rope is wound around the winding roller. 6. The power distribution cabinet according to claim 4 or 5, characterized in that it also includes: A temperature sensor is disposed in the installation cavity and is used to detect the temperature in the installation cavity; The controller is electrically connected to the temperature sensor and the heat dissipation fan, and is used to control the heat dissipation fan to operate when the temperature detected by the temperature sensor is greater than a first preset temperature. 7. The power distribution cabinet according to claim 6, further comprising: A humidity sensor is arranged on the peripheral side of the box body and is used to detect the humidity of the air; The controller is also electrically connected to the humidity sensor and the driving device, and is used to control the driving device to drive the shielding member to move relative to the box body to close the air inlet when the humidity detected by the humidity sensor is greater than a first preset humidity. 8. The power distribution cabinet according to any one of claims 2 to 5, characterized in that the exhaust port is arranged on the top plate, and the power distribution cabinet further comprises: An exhaust box is arranged on a side of the top plate away from the bottom plate and connected to the top plate; an air inlet and an air outlet are arranged on the exhaust box, and an air flow channel is formed between the air inlet and the air outlet; Wherein, the air inlet is connected to the exhaust port; the air outlet is arranged on the end face of the exhaust box in the second direction, and the second direction is parallel to the surface of the bottom plate close to the top plate. 9. The power distribution cabinet according to claim 8, characterized in that the exhaust box comprises: A mounting plate is disposed on the top plate, and the air inlet is disposed on the mounting plate; A cover plate, arranged opposite to the mounting plate and located on a side of the mounting plate away from the top plate; The baffle is connected to the mounting plate and the cover plate, and forms the air flow channel with the mounting plate and the cover plate; the air outlet is arranged on the baffle. 10. The power distribution cabinet according to claim 9, further comprising: A windshield, disposed at the air outlet and connected to the cover plate; the windshield can rotate relative to the cover plate to open or close the air outlet; Among them, when the cooling fan is running, the airflow attracted by the cooling fan can drive the wind shield to rotate relative to the cover plate to open the air outlet; when the cooling fan stops running, the wind shield can rotate relative to the cover plate to close the air outlet under the action of gravity.