Electrical cabinet

Abstract

The application discloses an electrical cabinet, and relates to the technical field of protective equipment. The electrical cabinet comprises a cabinet, an air inlet device and an air outlet device. The cabinet forms a containing cavity, and an air inlet and an air outlet are formed in the cabinet and are connected with the containing cavity and the outside of the cabinet. The air inlet device and the air outlet device are arranged on the cabinet. The air inlet device forms an air inlet channel connected with the air inlet, and comprises a first filter assembly arranged in the air inlet channel. The air outlet device forms an air outlet channel connected with the air outlet, and comprises a second filter assembly arranged in the air outlet channel. The electrical cabinet further comprises an air inlet fan and / or an air outlet fan. The electrical cabinet provided by the application has better protection effect and heat dissipation effect, and is beneficial to the reliable operation of the internal equipment.

Description

Technical Field

[0001] This application relates to the field of protective equipment technology, and more specifically, to an electrical cabinet. Background Technology

[0002] Currently, some electrical equipment is housed in electrical cabinets for protection against external influences. To ensure heat dissipation and prevent components from aging prematurely due to high temperatures, related technologies utilize air inlets and outlets, along with fans, to facilitate air exchange between the inside and outside of the cabinet, improving convective heat transfer efficiency. However, the presence of air inlets and outlets compromises the cabinet's protective capabilities. Dust, foreign objects, and moisture can enter the cabinet through these openings, damaging the equipment. This is especially problematic when the cabinet is installed outdoors, requiring a high IP rating to ensure reliable operation. Current electrical cabinet technologies often fail to simultaneously meet both heat dissipation and protection requirements. Utility Model Content

[0003] The purpose of this application is to provide an electrical cabinet with better heat dissipation and protection capabilities.

[0004] The embodiments of this application can be implemented as follows:

[0005] In a first aspect, this application provides an electrical cabinet, including a cabinet, an air inlet device, and an air outlet device. The cabinet forms a receiving cavity, and the cabinet has an air inlet and an air outlet connecting the receiving cavity and the outside of the cabinet. The air inlet device and the air outlet device are both disposed in the cabinet. The air inlet device forms an air inlet channel connecting the air inlet and includes a first filter component disposed in the air inlet channel. The air outlet device forms an exhaust channel connecting the exhaust outlet and includes a second filter component disposed in the exhaust channel.

[0006] The air intake device also includes an air intake fan, and / or the exhaust device also includes an exhaust fan.

[0007] In an optional implementation, both the air intake and exhaust devices are located inside the cabinet.

[0008] In an optional embodiment, the first filter assembly includes a first dustproof component and a first dehumidification component;

[0009] And / or, the second filter assembly includes a second dustproof element and a second dehumidification element.

[0010] In an optional embodiment, the first dehumidifier and the first dustproof component are arranged sequentially along the air inlet direction, and the second dustproof component and the second dehumidifier are arranged sequentially along the air outlet direction.

[0011] In an optional embodiment, the air intake device includes an air intake hood, which has a first air intake opening and a second air intake opening. An air intake channel is formed between the first air intake opening and the second air intake opening. The air intake hood is connected to the cabinet, and the first air intake opening is opposite to and communicates with the air inlet.

[0012] And / or, the exhaust device includes an exhaust hood having a first exhaust opening and a second exhaust opening, an exhaust duct being formed between the first exhaust opening and the second exhaust opening, the exhaust hood being connected to the cabinet, and the first exhaust opening being opposite to and connected to the exhaust outlet.

[0013] In an optional embodiment, the exhaust fan is located at the second exhaust opening of the exhaust hood.

[0014] In an optional embodiment, the air inlet hood includes a first base plate connected to the edge of the first base plate, the first base plate and the air inlet are spaced apart, the edge of the first enclosure away from the first base plate forms a first air inlet opening, and a second air inlet opening is opened in the first enclosure.

[0015] In an optional embodiment, the exhaust hood includes a second base plate connected to the edge of the second base plate, the second base plate and the exhaust port are spaced apart, the edge of the second enclosure away from the second base plate forms a first exhaust opening, the second exhaust opening is opened in the second base plate, and the exhaust fan is disposed on the outside of the second base plate and opposite to the second exhaust opening.

[0016] In an optional embodiment, a first sealing element is provided between the air inlet hood and the cabinet, and a second sealing element is provided between the air outlet hood and the cabinet.

[0017] In an optional implementation, both the air intake device and the air exhaust device are located inside the cabinet, with the height of the air intake being lower than the height of the second air intake opening and the height of the air exhaust opening being lower than the height of the second air exhaust opening.

[0018] In an optional implementation, the cabinet includes a cabinet body and a cabinet door rotatably connected to the cabinet body, with an exhaust vent located on the cabinet door and an air inlet located on the side of the cabinet body away from the cabinet door.

[0019] In an optional implementation, the height of the air inlet is lower than the height of the air outlet.

[0020] The beneficial effects of the electrical cabinet provided in this application embodiment include:

[0021] The electrical cabinet provided in this embodiment includes a cabinet, an air intake device, and an exhaust device. The cabinet forms a receiving cavity, and an air intake and exhaust port are provided on the cabinet, connecting the receiving cavity to the outside of the cabinet. Both the air intake and exhaust devices are disposed within the cabinet. The air intake device forms an air intake channel connecting to the air intake port and includes a first filter component disposed within the air intake channel. The exhaust device forms an exhaust channel connecting to the exhaust port and includes a second filter component disposed within the exhaust channel. The air intake device also includes an intake fan, and / or the exhaust device also includes an exhaust fan. By providing an intake fan and / or an exhaust fan, a pressure difference can be created between the inside and outside of the cabinet. Air from outside the cabinet can enter the cabinet through the air intake port, absorb heat from the electrical equipment, and then be exhausted from the cabinet through the exhaust port. This enhanced air convection improves the heat dissipation performance of the electrical cabinet. Because a first filter is installed in the air intake channel, dust, impurities, and moisture in the air can be filtered out when air enters the cabinet through the air intake device, preventing damage to the electrical equipment inside the enclosure from dust, impurities, and moisture. Even when the fan is not running, the first and second filter components still provide filtration, preventing dust, impurities, and moisture from entering the cabinet through the air intake and exhaust vents and causing damage to the equipment. Therefore, the electrical cabinet provided in this embodiment of the application achieves both good protection and heat dissipation, which is beneficial to ensuring the reliable operation of the internal equipment. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the electrical cabinet from a first-view perspective in one embodiment of this application;

[0024] Figure 2 This is a schematic diagram of the electrical cabinet from a second perspective in one embodiment of this application;

[0025] Figure 3 This is a schematic diagram of the electrical cabinet after the cabinet door is opened in one embodiment of this application;

[0026] Figure 4 This is a schematic diagram of the airflow path within the cabinet in one embodiment of this application;

[0027] Figure 5 This is a schematic diagram of the air intake device in one embodiment of this application;

[0028] Figure 6This is an exploded view of the air intake device in one embodiment of this application;

[0029] Figure 7 for Figure 4 Enlarged view of section VII in the middle;

[0030] Figure 8 This is a schematic diagram of an exhaust device in one embodiment of this application;

[0031] Figure 9 This is an exploded view of the ventilation device in one embodiment of this application;

[0032] Figure 10 for Figure 4 A magnified view of a local area X.

[0033] Icons: 100-Rack; 101-Receiving cavity; 110-Rack body; 111-Air inlet; 120-Rack door; 121-Exhaust outlet; 200-Air inlet device; 210-Air inlet cover; 211-First base plate; 212-First enclosure; 213-First air inlet opening; 214-Second air inlet opening; 220-First filter assembly; 221-First dustproof component; 222-First dehumidification component; 230-First sealing component; 300-Exhaust device; 310-Exhaust cover; 311-Second base plate; 312-Second enclosure; 313-First exhaust opening; 314-Second exhaust opening; 320-Second filter assembly; 321-Second dustproof component; 322-Second dehumidification component; 330-Second sealing component; 340-Exhaust fan. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0036] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0037] In the description of this application, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, they are only for the convenience of describing this application and 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, and therefore should not be construed as a limitation of this application.

[0038] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0039] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0040] In related technologies, air inlets and outlets are installed on electrical cabinets, and fans are used to achieve air exchange between the inside and outside of the cabinet, thereby improving heat dissipation efficiency. However, the installation of air inlets and outlets results in poor sealing of the electrical cabinet. When the fan is turned on for cooling, moisture and dust can enter the electrical cabinet through the air inlet; when the fan is not turned on, moisture, dust, and even external insects can enter the electrical cabinet through both the air inlet and outlet. This leads to poor protection performance of the electrical cabinets in related technologies, making it difficult to ensure the reliable operation of the internal electrical equipment.

[0041] Therefore, this application provides an electrical cabinet that effectively blocks external foreign objects by installing filter components at the air inlet and exhaust outlet, thus balancing heat dissipation and protection performance.

[0042] Figure 1 This is a schematic diagram of the electrical cabinet from a first-view perspective in one embodiment of this application; Figure 2 This is a schematic diagram of the electrical cabinet from a second perspective in one embodiment of this application. Figure 1 and Figure 2 As shown in the figure, the electrical cabinet provided in this application embodiment includes a cabinet 100, which forms a receiving cavity 101. The receiving cavity 101 can be used to house electrical equipment. The cabinet 100 provides protection for the internal equipment to prevent theft or damage from external objects. Typically, the equipment generates heat during operation, and the heat accumulation in the receiving cavity 101 causes the temperature inside the cavity 101 to rise. Excessive temperature may lead to abnormal equipment operation or even damage. To prevent overheating of the equipment inside the cabinet 100, the cabinet 100 is provided with an air inlet 111 and an exhaust vent 121. External air can enter the receiving cavity 101 of the cabinet 100 through the air inlet 111, absorb the heat generated by the equipment, and then be exhausted to the outside of the cabinet 100 through the exhaust vent 121, thereby achieving heat dissipation for the equipment. The electrical cabinet provided in this application embodiment can be used to store energy storage control equipment.

[0043] Optionally, the rack 100 is a cuboid. The rack 100 includes a cabinet body 110 and a door 120. The cabinet body 110 has an opening, and the door 120 is rotatably connected to the edge of the opening of the cabinet body 110. The door 120 opens and closes the rack 100 by rotating relative to the cabinet body 110. Optionally, an air inlet 111 is located on the cabinet body 110, and an air outlet 121 is located on the door 120. The air inlet 111 is located on the side of the cabinet body 110 away from the door 120. In this embodiment, the rack 100 has opposing front and back sides. The side where the door 120 is located is the front side of the rack 100, and the air inlet 111 is located on the back side of the rack 100. By placing the air inlet 111 on the back side of the cabinet 100 and the exhaust outlet 121 on the front side of the cabinet 100, the airflow can flow from the back to the front of the receiving cavity 101 after entering it. This avoids short-circuit flow that might occur if the air inlet 111 and exhaust outlet 121 were located on the same side of the cabinet 100, thus improving heat exchange for the equipment within the receiving cavity 101. Furthermore, the height of the air inlet 111 is lower than the height of the exhaust outlet 121. It should be understood that when the electrical cabinet is normally placed on the ground, the cabinet 100 has a bottom for support on the ground and a top away from the ground. The height of the air inlet 111 and exhaust outlet 121 refers to the distance between them and the bottom of the cabinet 100. Since air density decreases after absorbing heat and tends to rise, placing the exhaust outlet 121 higher than the air inlet 111 facilitates the exhaust of hot air. Furthermore, the arrangement of the air inlet 111 and the exhaust outlet 121, one at a lower elevation and the other at a higher elevation, allows for a longer path between them. This increases the average residence time of the air entering through the air inlet 111 within the housing cavity 101, thereby increasing heat exchange between the air and the equipment and improving heat dissipation efficiency. In this embodiment, the air inlet 111 is located near the bottom of the cabinet 100, and the exhaust outlet 121 is located near the top of the cabinet 100.

[0044] To reduce the risk of foreign objects entering the cabinet 100 through the air inlet 111 and exhaust vent 121, the air inlet 111 and exhaust vent 121 may optionally be mesh structures. The mesh structure can be multiple through holes formed in the cabinet 100, or it can be formed by a grille. In other optional embodiments, the cabinet 100 may also be cylindrical in shape. In this embodiment, there is one cabinet door 120. In other optional embodiments, the cabinet 100 may include two (e.g., double doors) or more cabinet doors 120.

[0045] Figure 3 This is a schematic diagram of the electrical cabinet after the cabinet door 120 is opened, according to one embodiment of this application. Figure 3As shown in the figure, the electrical cabinet provided in this embodiment of the application also includes an air intake device 200 and an exhaust device 300 disposed in the cabinet 100. The air intake device 200 forms an air intake channel communicating with the air inlet 111, and the exhaust device 300 forms an exhaust channel communicating with the exhaust outlet 121. Both the air intake and exhaust channels are used for airflow. Specifically, the air intake channel is used for airflow flowing from outside the cabinet 100 into the cabinet 100, and the exhaust channel is used for airflow after heat exchange to be discharged from inside the cabinet 100 to outside the cabinet 100. The air intake device 200 includes an intake fan (not shown in the figure), and / or the exhaust device 300 includes an exhaust fan 340. By providing the intake fan and / or the exhaust fan 340, the gas inside the cabinet 100 can be actively driven to exchange with the gas outside the cabinet 100. Specifically, the intake fan blows air from outside the cabinet 100 into the receiving cavity 101. After the air pressure inside the receiving cavity 101 increases, the air inside the receiving cavity 101 can be discharged to the outside of the cabinet 100 through the exhaust port 121. The exhaust fan 340 can draw air from the receiving cavity 101 and discharge it to the outside of the cabinet 100 through the exhaust port 121. After the air pressure inside the receiving cavity 101 decreases, the intake port 111 will draw in air from outside the cabinet 100. For example... Figure 3 As shown, in this embodiment, the exhaust device 300 includes an exhaust fan 340, while the air intake device 200 does not include a fan. In other embodiments, the air intake device 200 may include an intake fan and the exhaust device 300 may not include a fan, or the air intake device 200 may include an intake fan and the exhaust device 300 may include an exhaust fan 340.

[0046] The air intake device 200 and the exhaust device 300 can be installed either inside or outside the cabinet 100. Figure 3 As shown, in this embodiment, both the air intake device 200 and the exhaust device 300 are located inside the cabinet 100. This ensures that both the air intake device 200 and the exhaust device 300 are protected by the cabinet 100, which helps to extend the service life of the air intake device 200 and the exhaust device 300.

[0047] Figure 4 This is a schematic diagram of the airflow path within the cabinet 100 in one embodiment of this application. Figure 4 The hollow arrow in the image indicates the airflow path when the exhaust fan 340 is turned on for heat dissipation. For example... Figure 4As shown, in this embodiment, when the exhaust fan 340 is turned on for heat dissipation, the gas outside the cabinet 100 first passes through the air inlet 111, then through the air inlet channel of the air inlet device 200, and enters the receiving cavity 101. After absorbing heat, the gas passes through the exhaust channel of the exhaust device 300 and the exhaust port 121 of the cabinet 100 in sequence, thereby being discharged from the cabinet 100. In other optional embodiments, the air inlet device 200 and the exhaust device 300 can also be located on the outside of the cabinet 100. In this case, the gas outside the cabinet 100 passes through the air inlet device 200 and the air inlet 111 in sequence to enter the receiving cavity 101, absorbs heat, and then passes through the exhaust port 121 and the exhaust device 300 in sequence to be discharged from the cabinet 100.

[0048] Figure 5 This is a schematic diagram of an air intake device 200 in one embodiment of this application; Figure 6 This is an exploded view of the air intake device 200 in one embodiment of this application. Figure 5 and Figure 6 As shown, the air intake device 200 includes an air intake shroud 210 and a first filter assembly 220. The air intake shroud 210 has a first air intake opening 213 and a second air intake opening 214. An air intake channel is formed between the first air intake opening 213 and the second air intake opening 214, and the first filter assembly 220 is disposed within the air intake channel. The air intake shroud 210 is used to connect to the cabinet 100, such that the first air intake opening 213 is opposite to and communicates with the air inlet 111. The airflow entering through the air inlet 111 can pass sequentially through the first air intake opening 213, the first filter assembly 220, and the second air intake opening 214, and finally enter the receiving cavity 101. The first filter assembly 220 filters the airflow, removing dust and moisture from the airflow.

[0049] In this embodiment, the air inlet hood 210 includes a first base plate 211 connected to the edge of the first base plate 211 and a first surrounding plate 212. The first base plate 211 is spaced apart from the air inlet 111. The edge of the first surrounding plate 212 away from the first base plate 211 forms a first air inlet opening 213, and a second air inlet opening 214 is formed in the first surrounding plate 212. Specifically, the first base plate 211 is rectangular, and the first surrounding plate 212 is arranged along the four sides of the first base plate 211. The first base plate 211 and the first surrounding plate 212 together form the cavity of the air inlet hood 210, that is, form an air inlet channel. Optionally, the second air inlet opening 214 includes a plurality of through holes arranged in an array; optionally, the first surrounding plate 212 on the side where the second air inlet opening 214 is located has a grille structure.

[0050] In this embodiment, the first filter assembly 220 includes a first dustproof component 221 and a first dehumidifier 222. The first dustproof component 221 can filter out dust in the airflow, while the first dehumidifier 222 can absorb moisture in the airflow to prevent excessive humidity in the receiving cavity 101. Optionally, the first dustproof component 221 is a dustproof mesh made of polyurethane; the first dehumidifier 222 is a honeycomb component made of polycarbonate (PC).

[0051] Furthermore, the first dehumidifying component 222 and the first dustproof component 221 are arranged sequentially along the air inlet direction, where the air inlet direction refers to the flow direction of gas within the air inlet channel when it enters the receiving cavity 101 through the air inlet channel. This avoids the adverse effects of high humidity moisture on the first dustproof component 221, such as causing it to become clogged after absorbing moisture.

[0052] Optionally, the air intake device 200 further includes a first sealing element 230, which is disposed between the air intake hood 210 and the cabinet 100 to improve the sealing effect at the connection between the air intake hood 210 and the cabinet 100. Specifically, the shape of the first sealing element 230 matches the shape of the first air intake opening 213, and the first sealing element 230 is disposed between the first enclosure 212 and the inner wall surface of the cabinet 110.

[0053] Figure 7 for Figure 4 A magnified view of section VII in the middle. (See image below.) Figure 7As shown, the airflow entering through the air inlet 111 first enters the air intake channel through the first air intake opening 213, then reaches the second air intake opening 214 along the air intake channel, and finally exits into the receiving cavity 101. During the journey from the first air intake opening 213 to the second air intake opening 214, the airflow passes sequentially through the first dehumidifier 222 and the first dustproof component 221, removing moisture and dust from the airflow. In this embodiment, the projection of the first air intake opening 213 onto the inner wall of the cabinet 110 covers the air inlet 111; the projection of the first filter assembly 220 onto the inner wall of the cabinet 110 is within the projection range of the first air intake opening 213 and does not overlap with the air inlet 111. In this embodiment, when the air intake hood 210 is connected to the cabinet 110, the first air intake opening 213 has a horizontal orientation, while the second air intake opening 214 is located above the air intake hood 210, and the height of the air inlet 111 is lower than the height of the second air intake opening 214. By making the height of the air inlet 111 lower than the height of the second air inlet opening 214, external air has an upward path as it enters the receiving cavity 101 through the air inlet channel. Dust and moisture, being less likely to rise than air, tend to settle inside the air inlet cover 210. Therefore, this design can block some dust and moisture from entering the receiving cavity 101, improving its cleanliness. Secondly, since the air inlet device 200 is located near the bottom of the cabinet 100 and is relatively low, placing the second air inlet opening 214 on the upper side of the air inlet cover 210 also facilitates the direct blowing of externally introduced cool air onto the equipment, improving heat dissipation performance. In addition, the air inlet channel extends upward, parallel to its inner wall, reducing the size of the air inlet device 200 in the direction perpendicular to the inner wall of the cabinet 100, thereby reducing interference with the equipment.

[0054] In this embodiment, the first enclosure 212 (i.e., the first enclosure 212 on the lower side of the air inlet hood 210) on the opposite side of the second air inlet opening 214 forms an obtuse angle with the first bottom plate 211, so that the first enclosure 212 is inclined relative to the horizontal direction. The inclined first enclosure 212 can guide the airflow, making the air intake smoother.

[0055] Figure 8 This is a schematic diagram of an exhaust device 300 in one embodiment of this application; Figure 9 This is an exploded view of an exhaust device 300 in one embodiment of this application. Figure 8 and Figure 9As shown, the exhaust device 300 includes an exhaust hood 310 and a second filter assembly 320. The exhaust hood 310 has a first exhaust opening 313 and a second exhaust opening 314. An exhaust channel is formed between the first exhaust opening 313 and the second exhaust opening 314, and the second filter assembly 320 is disposed within the exhaust channel. The exhaust hood 310 is used to connect to the cabinet 100, such that the first exhaust opening 313 is opposite to and communicates with the exhaust port 121.

[0056] In this embodiment, the exhaust hood 310 includes a second base plate 311 connected to the edge of the second base plate 311 and a second surrounding plate 312. The second base plate 311 is spaced apart from the exhaust port 121. The edge of the second surrounding plate 312 away from the second base plate 311 forms a first exhaust opening 313, and a second exhaust opening 314 is formed in the second base plate 311. Specifically, the second base plate 311 is rectangular, and the second surrounding plate 312 is arranged along the four sides of the second base plate 311. The second base plate 311 and the second surrounding plate 312 together form the cavity of the exhaust hood 310, that is, form an exhaust channel. Optionally, the second exhaust opening 314 is a circular hole. In this embodiment, an exhaust fan 340 is disposed at the second exhaust opening 314 of the exhaust hood 310. Specifically, the exhaust fan 340 is disposed on the outside of the second base plate 311 and opposite to the second exhaust opening 314. In this embodiment, the exhaust fan 340 is an axial flow fan, and the exhaust fan 340 is directly opposite the second exhaust opening 314; in other optional embodiments, the exhaust fan 340 can also be other types of fans, such as centrifugal fans.

[0057] In this embodiment, one of the functions of the second filter assembly 320 is to filter dust and moisture in the gas entering the receiving cavity 101 from the exhaust port 121 when the exhaust fan 340 is not turned on. In this embodiment, the second filter assembly 320 includes a second dustproof component 321 and a second dehumidifier 322. The second dustproof component 321 filters out dust in the airflow, while the second dehumidifier 322 absorbs moisture in the airflow, preventing excessive humidity in the receiving cavity 101. Optionally, the second dustproof component 321 is a dustproof mesh made of polyurethane; the second dehumidifier 322 is a honeycomb component made of polycarbonate (PC).

[0058] Furthermore, the second dustproof component 321 and the second dehumidifier 322 are arranged sequentially along the exhaust direction, where the exhaust direction refers to the flow direction of gas within the exhaust channel as it exits the receiving cavity 101. This arrangement ensures that the second dehumidifier 322 is closer to the exhaust port 121 than the second dustproof component 321. When the exhaust fan 340 is not activated for heat dissipation, the gas entering the receiving cavity 101 from the exhaust port 121 can first pass through the second dehumidifier 322 and then the second dustproof component 321. This avoids the adverse effects of high humidity on the second dustproof component 321, such as causing it to become clogged after absorbing moisture.

[0059] Optionally, the exhaust device 300 further includes a second sealing element 330, which is disposed between the exhaust hood 310 and the cabinet 100 to improve the sealing effect at the connection between the exhaust hood 310 and the cabinet 100. Specifically, the shape of the second sealing element 330 matches the shape of the first exhaust opening 313, and the second sealing element 330 is disposed between the second enclosure 312 and the inner wall surface of the cabinet door 120.

[0060] Figure 10 for Figure 4 A magnified view of a local area X. (e.g.) Figure 10 As shown, in the scenario where the exhaust fan 340 is turned on for heat dissipation, the airflow about to be discharged from the exhaust port 121 first enters the exhaust duct through the second exhaust opening 314, then reaches the first exhaust opening 313 along the exhaust duct, and finally exits from the exhaust port 121 from the cabinet 100. During the process from the second exhaust opening 314 to the first exhaust opening 313, it will pass through the second dustproof component 321 and the second dehumidification component 322 in sequence. Figure 10The hollow arrow indicates the airflow direction after the exhaust fan 340 is turned on. When the exhaust fan 340 is not turned on, external gas entering the receiving cavity 101 through the exhaust port 121 moves along the opposite path described above. In this embodiment, the projection of the first exhaust opening 313 onto the inner wall of the cabinet door 120 covers the exhaust port 121; the projection of the second filter assembly 320 onto the inner wall of the cabinet door 120 is within the projection range of the first exhaust opening 313 and does not overlap with the exhaust port 121. In this embodiment, when the exhaust hood 310 is connected to the cabinet door 120, both the first exhaust opening 313 and the second exhaust opening 314 have a horizontal orientation, and the height of the exhaust port 121 is lower than the height of the second exhaust opening 314. By making the height of the exhaust vent 121 lower than the height of the second exhaust opening 314, external air has an upward path as it enters the receiving cavity 101 through the exhaust duct. Dust and moisture, being less likely to rise than air, tend to settle inside the exhaust hood 310. Therefore, this design can block some dust and moisture from entering the receiving cavity 101 (mainly when the exhaust fan 340 is not turned on), improving the cleanliness of the receiving cavity 101. Secondly, since hotter air tends to remain at the top of the receiving cavity 101, placing the second exhaust opening 314 at a higher position also facilitates the delivery of hot air from the receiving cavity 101 out of the cabinet 100.

[0061] In this embodiment, the second enclosure 312 on the lower side of the exhaust hood 310 forms an obtuse angle with the second bottom plate 311, so that the second enclosure 312 on the lower side of the exhaust hood 310 is inclined relative to the horizontal direction. The inclined second enclosure 312 can guide the airflow, making the exhaust smoother.

[0062] In this embodiment of the application, by providing a first dehumidifying component 222 and a first dustproof component 221 in the air inlet device 200, and a second dehumidifying component 322 and a second dustproof component 321 in the exhaust device 300, the electrical cabinet can have both good heat dissipation capabilities and good dustproof and waterproof capabilities, and its protection level can reach IP55 or above.

[0063] In summary, the electrical cabinet provided in this application embodiment includes a cabinet 100, an air inlet device 200, and an exhaust device 300. The cabinet 100 forms a receiving cavity 101, and the cabinet 100 has an air inlet 111 and an exhaust outlet 121 connecting the receiving cavity 101 and the outside of the cabinet 100. The air inlet device 200 and the exhaust device 300 are both disposed in the cabinet 100. The air inlet device 200 forms an air inlet channel connecting to the air inlet 111, and includes a first filter component 220 disposed within the air inlet channel. The exhaust device 300 forms an exhaust channel connecting to the exhaust outlet 121, and includes a second filter component 320 disposed within the exhaust channel. The air inlet device 200 also includes an air inlet fan, and / or, the exhaust device 300 also includes an exhaust fan 340. By setting up an intake fan and / or an exhaust fan 340, a pressure difference can be created between the inside and outside of the cabinet 100. Air from outside the cabinet 100 can enter through the intake port 111, absorb heat from the electrical equipment, and then exit through the exhaust port 121. This enhanced air convection improves the heat dissipation performance of the electrical cabinet. Because a first filter is installed in the intake channel, dust, impurities, and moisture in the air are filtered out as it enters the cabinet 100 through the intake device 200, preventing damage to the electrical equipment inside the housing 101 from these substances. Even when the fans are not running, the first filter assembly 220 and the second filter assembly 320 also provide filtration, preventing dust, impurities, and moisture from entering the cabinet 100 through the intake port 111 and exhaust port 121 and causing damage to the equipment. Therefore, the electrical cabinet provided in this embodiment of the application achieves both good protection and heat dissipation, which is beneficial for ensuring the reliable operation of the internal equipment.

[0064] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. An electrical cabinet, characterized in that, The system includes a cabinet (100), an air inlet device (200), and an exhaust device (300). The cabinet (100) forms a receiving cavity (101). The cabinet (100) has an air inlet (111) and an exhaust outlet (121) that connect the receiving cavity (101) and the outside of the cabinet (100). The air inlet device (200) and the exhaust device (300) are both located in the cabinet (100). The air inlet device (200) forms an air inlet channel that connects to the air inlet (111). The air inlet device (200) includes a first filter assembly (220) that is located in the air inlet channel. The exhaust device (300) forms an exhaust channel that connects to the exhaust outlet (121). The exhaust device (300) includes a second filter assembly (320) that is located in the exhaust channel. The air intake device (200) further includes an air intake fan, and / or the exhaust device (300) further includes an exhaust fan (340).

2. The electrical cabinet according to claim 1, characterized in that, Both the air intake device (200) and the exhaust device (300) are located inside the cabinet (100).

3. The electrical cabinet according to claim 1, characterized in that, The first filter assembly (220) includes a first dustproof component (221) and a first dehumidification component (222); And / or, the second filter assembly (320) includes a second dustproof element (321) and a second dehumidifying element (322).

4. The electrical cabinet according to claim 3, characterized in that, The first dehumidifier (222) and the first dustproof component (221) are arranged sequentially along the air inlet direction, and the second dustproof component (321) and the second dehumidifier (322) are arranged sequentially along the air outlet direction.

5. The electrical cabinet according to any one of claims 1-4, characterized in that, The air intake device (200) includes an air intake hood (210), which has a first air intake opening (213) and a second air intake opening (214). The air intake channel is formed between the first air intake opening (213) and the second air intake opening (214). The air intake hood (210) is connected to the cabinet (100). The first air intake opening (213) is opposite to and communicates with the air inlet (111). And / or, the exhaust device (300) includes an exhaust hood (310) having a first exhaust opening (313) and a second exhaust opening (314), the exhaust channel being formed between the first exhaust opening (313) and the second exhaust opening (314), the exhaust hood (310) being connected to the cabinet (100), and the first exhaust opening (313) being opposite to and communicating with the exhaust port (121).

6. The electrical cabinet according to claim 5, characterized in that, The exhaust fan (340) is located at the second exhaust opening (314) of the exhaust hood (310).

7. The electrical cabinet according to claim 5, characterized in that, The air inlet hood (210) includes a first base plate (211) connected to the edge of the first base plate (211) and a first enclosure plate (212). The first base plate (211) and the air inlet (111) are spaced apart. The edge of the first enclosure plate (212) away from the first base plate (211) forms the first air inlet opening (213). The second air inlet opening (214) is opened in the first enclosure plate (212).

8. The electrical cabinet according to claim 5, characterized in that, The exhaust hood (310) includes a second base plate (311) connected to the edge of the second base plate (311) and a second enclosure plate (312). The second base plate (311) is spaced apart from the exhaust port (121). The edge of the second enclosure plate (312) away from the second base plate (311) forms the first exhaust opening (313). The second exhaust opening (314) is opened on the second base plate (311). The exhaust fan (340) is located on the outside of the second base plate (311) and opposite to the second exhaust opening (314).

9. The electrical cabinet according to claim 5, characterized in that, A first sealing element (230) is provided between the air inlet hood (210) and the cabinet (100), and a second sealing element (330) is provided between the exhaust hood (310) and the cabinet (100).

10. The electrical cabinet according to claim 5, characterized in that, The air inlet device (200) and the air outlet device (300) are both located inside the cabinet (100). The height of the air inlet (111) is lower than the height of the second air inlet opening (214), and the height of the air outlet (121) is lower than the height of the second air outlet opening (314).

11. The electrical cabinet according to any one of claims 1-4, characterized in that, The cabinet (100) includes a cabinet body (110) and a cabinet door (120) rotatably connected to the cabinet body (110). The exhaust vent (121) is located on the cabinet door (120), and the air inlet (111) is located on the side of the cabinet body (110) away from the cabinet door (120).

12. The electrical cabinet according to any one of claims 1-4, characterized in that, The height of the air inlet (111) is lower than the height of the air outlet (121).

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