A ventilation device and electrical equipment cabinet

Abstract

This application relates to the field of power equipment cabinet technology, and more particularly to a ventilation device and a power equipment cabinet. The ventilation device includes a housing, with an air inlet, an air outlet, and a flow channel interconnected, and the air inlet and outlet positioned at different locations along a first direction; a filter structure fixedly connected to the housing and disposed within the flow channel, at least one of the air inlet and air outlet; and a connecting structure fixedly connected to the housing and used for detachable connection to the cabinet. The ventilation device utilizes gravity and the filter structure to prevent dust, debris, and moisture from entering the power equipment cabinet, thus achieving independent waterproofing and dustproofing effects. This simplifies the structure of the ventilation device and reduces the structural complexity of the power equipment cabinet. The ventilation device can be disassembled and assembled according to actual needs, facilitating the installation, use, and maintenance of the power equipment cabinet.

Description

Technical Field

[0001] This application relates to the field of power equipment cabinet technology, and in particular to a ventilation device and a power equipment cabinet. Background Technology

[0002] Existing power equipment cabinets, such as energy storage cabinets and switchgear, generate harmful gases during use. These cabinets also have high requirements for heat dissipation. To promptly remove harmful gases and heat from the cabinet, power equipment cabinets typically have air inlets and outlets. To prevent dust and moisture from entering the cabinet through these inlets and outlets, the air inlets usually have complex louver structures or normally closed doors, while the outlets are typically equipped with normally closed exhaust fans. This complicates the structure of the power equipment cabinet, making installation, use, and maintenance more difficult, and also increases manufacturing costs. Utility Model Content

[0003] To address the aforementioned issues, embodiments of this application provide a ventilation device and an electrical equipment cabinet.

[0004] In a first aspect, embodiments of this application provide a ventilation device, which includes:

[0005] The housing has an air inlet, an air outlet, and a flow channel. The air inlet and the air outlet are both connected to the flow channel. The housing has a first direction, and the air inlet and the air outlet are disposed at different positions along the first direction.

[0006] A filter structure is fixedly connected to the housing, and the filter structure is disposed at least at one of the flow channel, the air inlet, and the air outlet;

[0007] A connecting structure is fixedly connected to the housing, and the connecting structure is used for detachable connection with the cabinet.

[0008] Optionally, the housing has a second direction that intersects with the first direction;

[0009] The flow channel extends along the first direction, and the housing includes a guide structure that is opposite to the air inlet along the second direction. The guide structure is used to guide the air flowing in from the air inlet to flow along the first direction.

[0010] And / or, the guiding structure is opposite to the air outlet along the second direction, and the guiding structure is used to guide the air in the flow channel to flow out from the air outlet.

[0011] Optionally, the housing includes a first shell wall and a second shell wall, the first shell wall and the second shell wall are connected, and the included angle between the first shell wall and the second shell wall is an acute angle. The air inlet or the air outlet is disposed on the first shell wall, and the air inlet or the air outlet is opposite to the second shell wall in the second direction. The second shell wall constitutes the guide structure.

[0012] Optionally, the air inlet and / or the air outlet includes a plurality of through holes disposed on the housing, wherein the diameter of the through holes is larger than the diameter of the filter holes in the filter structure.

[0013] Optionally, the connection structure includes a flange and a seal, the flange being fixedly connected to the housing and having fastener holes for connection to the cabinet; the seal is connected to the flange and is used to seal between the flange and the cabinet.

[0014] Optionally, the angle between the second shell wall and the first shell wall is θ, where 20 degrees ≤ θ ≤ 80 degrees.

[0015] Secondly, embodiments of this application provide a power equipment cabinet, which includes any of the ventilation devices described in the first aspect.

[0016] Optionally, the power equipment cabinet includes a cabinet body and at least two of the ventilation devices;

[0017] The cabinet has a first through hole and a second through hole. The ventilation device is installed in the cabinet and there are at least two of them. The ventilation device is detachably connected to the cabinet. At least one of the ventilation devices is located at the first through hole of the cabinet, and the air inlet of the ventilation device located at the first through hole is connected to the first through hole. At least one of the ventilation devices is located at the second through hole of the cabinet, and the air outlet of the ventilation device located at the second through hole is connected to the second through hole.

[0018] Optionally, the first through hole and the second through hole are respectively disposed on opposite sides of the cabinet, and the first through hole and the second through hole are disposed at different positions of the cabinet along the first direction.

[0019] Optionally, the first direction is parallel to the direction of gravity, and along the first direction, the ratio of the distance from the center of the second through hole to the end of the cabinet facing the ground to the distance from the center of the first through hole to the end of the cabinet facing the ground is k, where 2≤k≤8.

[0020] In some implementations of this application, the ventilation device described in the embodiments of this application includes a housing, a filter structure, and a connection structure. The housing has an air inlet, an air outlet, and a flow channel. The air inlet and the air outlet are both connected to the flow channel and are located at different positions along a first direction on the housing. When the ventilation device supplies air, the first direction can be parallel to the direction of gravity, so that the air inlet is located below the air outlet, making it difficult for dust, debris, and moisture to enter the power equipment cabinet from the air outlet under the influence of gravity. When the ventilation device exhausts air, the first direction can be parallel to the direction of gravity, so that the air outlet is located below the air inlet, making it difficult for dust, debris, and moisture to enter the power equipment cabinet from the air inlet under the influence of gravity. The filter structure is located at least one of the flow channel, the air inlet, and the air outlet to further prevent dust, debris, and moisture from entering the power equipment cabinet. This allows the ventilation device to independently achieve waterproof and dustproof effects, while also simplifying the structure of the ventilation device and reducing the structural complexity of the power equipment cabinet. The connection structure allows for detachable connection to the power equipment cabinet, enabling the ventilation device to be installed as an independent module within the cabinet. This enhances the flexibility of the ventilation device, allowing it to be disassembled and reassembled according to specific needs, thus facilitating the installation, use, and maintenance of the power equipment cabinet. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 These are isometric views of the ventilation devices in some embodiments of this application;

[0023] Figure 2 yes Figure 1 Axonometric view in another direction;

[0024] Figure 3 yes Figure 1 The front view;

[0025] Figure 4 yes Figure 3 Sectional view along AA;

[0026] Figure 5 yes Figure 1 Rear view;

[0027] Figure 6 yes Figure 1 Top view;

[0028] Figure 7 This is an isometric view of the ventilation device in some other embodiments of this application;

[0029] Figure 8 yes Figure 7 Axonometric view in another direction;

[0030] Figure 9 yes Figure 7 The front view;

[0031] Figure 10 yes Figure 9 A cross-sectional view along BB;

[0032] Figure 11 yes Figure 7 Rear view;

[0033] Figure 12 These are schematic diagrams of the power equipment cabinet in some embodiments of this application;

[0034] Reference numerals: 1. Ventilation device; 11. Housing; 11a. Air inlet; 11b. Air outlet; 11c. Flow channel; 11d. Guiding structure; 111. First housing wall; 112. Second housing wall; 113. Third housing wall; 114. Fourth housing wall; 12. Filter structure; 13. Connection structure; 131. Protruding edge; 1311. Fastener hole; 132. Seal; 14. Exhaust fan; 2. Cabinet; 21. First through hole; 22. Second through hole; 100. Power equipment cabinet; Z - First direction; X - Second direction. Detailed Implementation

[0035] The embodiments of this utility model will now be described in detail. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0036] Existing power equipment cabinets, such as energy storage cabinets and switch cabinets, require air inlets and outlets to remove heat generated by the electronic equipment inside through airflow. Simultaneously, power equipment cabinets generate harmful gases during operation; the air inlets and outlets also allow for the timely removal of these gases, preventing their accumulation and thus avoiding any impact on the normal operation of electronic equipment or the health and safety of technical personnel.

[0037] However, the placement of air inlets and outlets also makes it easier for dust, moisture, and debris to enter the electrical equipment cabinet. Dust, moisture, and debris entering the cabinet can affect the normal operation of electronic equipment, and in severe cases, may even cause short circuits or breakdowns within the cabinet. To prevent dust, moisture, and debris from entering the cabinet through the air inlets and outlets, the air inlets are typically equipped with complex louver structures or normally closed doors, while the air outlets are usually equipped with normally closed exhaust fans. In non-ventilated conditions, the louvers or doors can be used to block the air inlets, and the normally closed exhaust fans can be used to block the air outlets, thus preventing dust, moisture, and debris from entering the cabinet.

[0038] However, the complex structure of the louvered doors, the opening and closing doors, and the normally closed exhaust fan complicates the structure of the power equipment cabinet. This increases the requirements for the installation and use of the power equipment cabinet, making its installation, use, and maintenance more complex, and also raising the manufacturing cost of the power equipment cabinet.

[0039] To address the aforementioned issues, this application provides a ventilation device and an electrical equipment cabinet.

[0040] In a first aspect, embodiments of this application provide a ventilation device 1, which can be used to ventilate the cabinet 2 of the power equipment cabinet 100, and also to exhaust the air inside the cabinet 2 of the power equipment cabinet 100. The ventilation device 1 specifically includes a housing 11, a filter structure 12, and a connection structure 13.

[0041] refer to Figure 1 The housing 11 is the shell-like component that constitutes the main body of the ventilation device 1 and provides an installation base for the filter structure 12 and the connecting structure 13. In the embodiments described in this application, reference is made to... Figure 2 The shell 11 can be a regular geometric shape such as a cube, cylinder, or cone, or it can be an irregular geometric shape. The specific shape of the shell 11 can be set according to actual needs, and will not be elaborated here. (Reference) Figure 3 The cut position shown, and the reference Figure 4The housing 11 has an air inlet 11a, an air outlet 11b, and a flow channel 11c, wherein the flow channel 11c is the inner cavity of the housing 11. The air inlet 11a and the air outlet 11b are formed on the housing 11 and communicate with the flow channel 11c. When the ventilation device 1 ventilates the cabinet 2 of the power equipment cabinet 100, outside air can flow into the flow channel 11c through the air inlet 11a, and then flow into the cabinet 2 of the power equipment cabinet 100 through the air outlet 11b. When the ventilation device 1 exhausts the air from the cabinet 2 of the power equipment cabinet 100, the air from the cabinet 2 of the power equipment cabinet 100 can flow into the flow channel 11c through the air inlet 11a, and then flow out of the cabinet 2 of the power equipment cabinet 100 through the air outlet 11b. The ventilation device 1 can be used alone or in pairs. When the ventilation devices 1 are used in pairs, one ventilation device 1 can be used to introduce outside air into the cabinet 2 of the power equipment cabinet 100, and the other ventilation device 1 can be used to output the air inside the cabinet 2 of the power equipment cabinet 100 to the outside of the cabinet 2 of the power equipment cabinet 100.

[0042] refer to Figure 4 The housing 11 has a first direction Z, and the air inlet 11a and air outlet 11b are located at different positions along the first direction Z. In use, the first direction Z can be made parallel to the direction of gravity. In this case, the air inlet 11a is located above the air outlet 11b, or the air outlet 11b is located above the air inlet 11a. When the ventilation device 1 supplies air into the cabinet 2 of the power equipment cabinet 100, the air inlet 11a can be located below the air outlet 11b. This way, as the outside air flows from the air inlet 11a to the air outlet 11b, dust, debris, and moisture from the outside environment can fall under gravity, preventing dust, debris, and moisture from entering the cabinet 2 of the power equipment cabinet 100 from the air outlet 11b. When the ventilation device 1 exhausts air from inside the cabinet 2 of the power equipment cabinet 100, the air outlet 11b can be located below the air inlet 11a. Even if dust, debris, and moisture enter the air outlet 11b, they will be difficult to enter the power equipment cabinet 100 from the air inlet 11a due to gravity.

[0043] refer to Figure 5The filter structure 12 can specifically be a filter screen, filter element, or other component capable of filtering air. In the embodiments described in this application, the filter structure 12 specifically uses a filter screen, and the diameter of the filter screen's pores can be determined according to actual needs. For example, the diameter of the filter screen's pores can be 0.5mm, 1mm, 2mm, etc. The filter structure 12 is fixedly connected to the housing 11, and the two can be connected by fasteners, welding, bonding, or other connection methods. The filter structure 12 is disposed at least at one of the following locations: within the flow channel 11c, at the air inlet 11a, or at the air outlet 11b. In other words, when only one filter structure 12 is provided, the filter structure 12 can be disposed within the flow channel 11c, at the air inlet 11a, or at the air outlet 11b. When the filter structure 12 has two, three, four, or even more filters, the filters can all be installed in the flow channel 11c, or in any two of the flow channel 11c, air inlet 11a, and air outlet 11b, or simultaneously in the flow channel 11c, air inlet 11a, and air outlet 11b. The filters can further prevent dust, debris, moisture, etc. from the external environment from entering the cabinet 2 of the power equipment cabinet 100.

[0044] The connecting structure 13 is used to achieve a detachable connection between the cabinet body 2 and the housing 11 of the power equipment cabinet 100. In the embodiments described in this application, the connecting structure 13 can be set independently of the housing 11 or integrally with the housing 11. For example, the connecting structure 13 can be a flange structure integrally formed with the housing 11, so that the connecting structure 13 can be detachably installed on the cabinet body 2 of the power equipment cabinet 100 using fasteners such as screws and bolts. The connecting structure 13 can also be an independent flange, and the connecting structure 13 is fixedly connected to the housing 11 by welding, interference fit, or other methods, so that the connecting structure 13 can be detachably installed on the cabinet body 2 of the power equipment cabinet 100 using fasteners such as screws and bolts. The connecting structure 13 can also be a snap-fit, which snaps into the through hole on the cabinet body 2 during installation.

[0045] With the help of the filter structure 12 and the housing 11, the ventilation device 1 can function as an independent module to achieve the waterproof and dustproof effects of the power equipment cabinet 100. Simultaneously, the simple structure of the filter structure 12 and the housing 11 simplifies the structure of the ventilation device 1, thereby reducing the structural complexity of the power equipment cabinet 100 and lowering its production and processing costs. Furthermore, the simplified structure of the ventilation device 1 also reduces the requirements for its installation, use, and maintenance, thus improving its ease of installation, use, and maintenance. The connecting structure 13 is used for a detachable connection to the cabinet body 2 of the power equipment cabinet 100, allowing the ventilation device 1 to be arranged as an independent module on the power equipment cabinet 100. This improves the flexibility of the ventilation device 1, enabling it to be disassembled and reassembled according to actual needs, thus facilitating the installation, use, and maintenance of the power equipment cabinet 100.

[0046] refer to Figure 4 In some embodiments of this application, optionally, the shell 11 has a second direction X, which intersects with the first direction Z. Specifically, the first direction Z and the second direction X can be in a general intersecting relationship, i.e., the angle between the first direction Z and the second direction X is an acute angle. Preferably, the first direction Z and the second direction X are orthogonal, i.e., the angle between the first direction Z and the second direction X is an acute angle. In the embodiments described in this application, the first direction Z can be parallel to the direction of gravity, and the second direction X can be a horizontal direction.

[0047] The flow channel 11c extends along the first direction Z. The housing 11 includes a guide structure 11d, which is opposite to the air inlet 11a along the second direction X. When outside air flows into the flow channel 11c through the air inlet 1a, the guide structure 11d can change the direction of the outside air flow, so that the air flowing in from the air inlet 11a is guided to flow along the first direction Z.

[0048] Alternatively, the guide structure 11d is opposite to the air outlet 11b along the second direction X. When the air inside the flow channel 11c flows to the guide structure 11d, the guide structure 11d can change the direction of airflow, so that the outside air inside the flow channel 11c is guided to flow out of the air outlet 11b along the second direction X.

[0049] In the embodiments described in this application, the guide structure 11d may be provided in only one location, in which case the guide structure 11d is opposite to the air inlet 11a or the air outlet 11b along the second direction X. Alternatively, the guide structure may be provided in two locations, in which case the air inlet 11a or the air outlet 11b is opposite to one guide structure 11d in the second direction X. Specifically, the guide structure 11d may be a portion of the shell wall of the housing 11, or it may be a baffle plate disposed inside the flow channel 11c. The structure of the guide structure 11d may be a straight plate-like structure arranged at an inclination relative to the first direction Z, or it may be an arc-shaped curved plate-like structure. The guide structure 11d can guide the flow of outside air within the flow channel 11c, so that outside air can flow out from the air outlet 11b in a timely manner. This can increase the flow rate of outside air within the flow channel 11c, thus improving the ventilation effect of the ventilation device 1.

[0050] In some embodiments of this application, optionally, the housing 11 includes a first housing wall 111 and a second housing wall 112 connected to each other. In the embodiments described in this application, both the first housing wall 111 and the second housing wall 112 are straight, thin-walled structures. The included angle between the first housing wall 111 and the second housing wall 112 is an acute angle, which can specifically be 30 degrees, 45 degrees, 60 degrees, etc. An air inlet 11a or an air outlet 11b is disposed at the first housing wall 111, and the air inlet 11a or the air outlet 11b is opposite to the second housing wall 112 in the second direction X. In this case, the second housing wall 112 is the aforementioned guide structure 11d.

[0051] Specifically, when using the ventilation device 1 to supply air into the cabinet 2 of the power equipment cabinet 100, the first direction Z can be made parallel to the direction of gravity, and the air inlet 11a can be positioned below the air outlet 11b. The air inlet 11a is located at the first shell wall 111 and is opposite to the second shell wall 112 in the second direction X. This way, after outside air enters the flow channel 11c from the air inlet 11a, it will come into contact with the second shell wall 112. Since the angle between the first shell wall 111 and the second shell wall 112 is acute, the second shell wall 112 can guide the outside air to flow upwards, so that the outside air can flow out from the air outlet 11b. When using the ventilation device 1 to discharge air from inside the cabinet 2 to the outside of the cabinet 2, the first direction Z can be made parallel to the direction of gravity, and the air outlet 11b can be positioned below the air inlet 11a. The air outlet 11b is located at the first shell wall 111 and is opposite to the second shell wall 112 in the second direction X. Air inside the cabinet 2 can enter the flow channel 11c from the air inlet 11a and flow along the first direction Z to the second shell wall 112. At this time, the air inside the cabinet 2 is in contact with the second shell wall 112. Since the angle between the first shell wall 111 and the second shell wall 112 is an acute angle, the second shell wall 112 can guide the outside air to flow along the second direction X so that the outside air can flow out from the air outlet 11b. This can increase the flow rate of outside air in the flow channel 11c, thus improving the ventilation effect of the ventilation device 1. At the same time, dust, debris, water vapor, etc. that enter the flow channel 11c through the air inlet 11a or the air outlet 11b are less likely to accumulate on the second shell wall 112. Under the influence of gravity, dust, debris, and moisture can continue to fall along the second shell wall 112 and eventually be discharged from the air inlet 11a or the air outlet 11b to the outside of the cabinet 2 of the power equipment cabinet 100. Therefore, the angle between the first shell wall 111 and the second shell wall 112 is an acute angle, which can prevent dust, debris, and moisture from accumulating inside the shell 11 and help ensure the waterproof and dustproof effect of the ventilation device 1.

[0052] In the embodiments described in this application, the specific shape and structure of the housing 11 can be set according to actual needs. For example, refer to... Figure 4The housing 11 also includes a third housing wall 113 and a fourth housing wall 114. The third housing wall 113 and the first housing wall 111 are spaced apart relative to each other along a second direction X. The second housing wall 112 and the fourth housing wall 114 are respectively connected between the first housing wall 111 and the third housing wall 113, and are spaced apart along a first direction Z. In this case, the flow channel 11c is the space between the first housing wall 111, the second housing wall 112, the third housing wall 113, and the fourth housing wall 114. When the ventilation device 1 is used to discharge outside air into the cabinet 2, the air inlet 11a is located at the first shell wall 111 and is opposite to the second shell wall 112 in the second direction X, and the air outlet 11b is located at the part of the third shell wall 113 away from the air inlet 11a in the first direction Z; or the air outlet 11b is located at the fourth shell wall 114; or at least two air outlets 11b are provided, and at least one air outlet 11b is provided at the part of the third shell wall 113 away from the air inlet 11a in the first direction Z and at the fourth shell wall 114 respectively. When the ventilation device 1 is used to discharge the air inside the cabinet 2 to the outside of the cabinet 2, the air outlet 11b is located at the first shell wall 111 and is opposite to the second shell wall 112 in the second direction X, and the air inlet 11a is located at the part of the third shell wall 113 away from the air outlet 11b in the first direction Z; or the air inlet 11a is located at the fourth shell wall 114; or at least two air inlets 11a are provided, and at least one air inlet 11a is provided at the part of the third shell wall 113 away from the air outlet 11b in the first direction Z and at the fourth shell wall 114 respectively.

[0053] In the embodiments described in this application, when the ventilation device 1 is used to supply air to the interior of the cabinet 2 of the power equipment cabinet 100, preferably, the filter structure 12 is disposed at the air inlet 11a to ensure that the outside air entering the flow channel 11c is as clean as possible. When the ventilation device 1 is used to exhaust the air inside the cabinet 2 of the power equipment cabinet 100, preferably, the filter structure 12 is disposed at the air outlet 11b to prevent external debris, moisture, and dust from entering. To further improve the filtration effect, a filter structure 12 may also be disposed within the flow channel 11c.

[0054] In some embodiments of this application, optionally, the air inlet 11a and / or the air outlet 11b include multiple through holes disposed on the housing 11, and the diameter of the through holes is larger than the diameter of the filter holes of the filter structure 12. For example, the diameter of the through holes can be 5 mm, and the diameter of the filter holes of the filter structure 12 can be 3 mm. This ensures the rate at which gas flows into or out of the ventilation device 1, thereby ensuring the ventilation effect of the ventilation device 1. At the same time, designing the air inlet 11a or the air outlet 11b as multiple through holes can prevent debris from entering the ventilation device 1 from 11a or the air outlet 11b.

[0055] Specifically, when the ventilation device 1 supplies air to the interior of the cabinet 2 of the power equipment cabinet 100, the air inlet 11a is located at the first shell wall 111 and is opposite to the second shell wall 112 in the second direction X. The air outlet 11b is located at the fourth shell wall 114 and is composed of multiple through holes formed on the fourth shell wall 114. A filter structure 12 is provided at the air inlet 11a and in the flow channel 11c.

[0056] refer to Figure 7 In some embodiments of this application, the ventilation device 1 may optionally include an exhaust fan 14. The exhaust fan 14 can increase the airflow rate within the ventilation device 1. The exhaust fan 14 can be located at the air inlet 11a, or it can be located within the flow channel 11c, with its outlet direction pointing from the air inlet 11a to the air outlet 11b. The air outlet 11b is located on the first shell wall 111 and is opposite to the second shell wall 112 in the second direction X. The air inlet 11a is located on the portion of the third shell wall 113 away from the air outlet 11b along the first direction Z. (See reference...) Figure 8 A filter structure 12 is provided at the air outlet 11b. At this time, the ventilation device 1 is used to exhaust the air inside the cabinet 2 of the power equipment cabinet 100 to the outside environment.

[0057] When using ventilation device 1 to exhaust the air inside cabinet 2 of electrical equipment cabinet 100, refer to Figure 9 The cut position shown and the reference Figure 10 As shown in the cross-sectional view, the aforementioned guide structure 11d may include a second shell wall 112 and a plate-like structure disposed within the flow channel 11c. Specifically, the guide structure 11d disposed within the flow channel 11c connects the first shell wall 111 and the third shell wall 113, and is spaced apart from the second shell wall 112 along the first direction Z. The air inlet 11a is disposed at the third shell wall 113, and the angle between the guide structure 11d disposed within the flow channel 11c and the third shell wall 113 is an acute angle, and the guide structure 11d disposed within the flow channel 11c is opposite to the air inlet 11a in the second direction X. When the ventilation device 1 exhausts the air inside the cabinet 2 of the power equipment cabinet 100, the air outlet 11b can be located below the air inlet 11a. Under the action of the exhaust fan 14, the air inside the cabinet 2 of the power equipment cabinet 100 enters the flow channel 11c from the air inlet 11a, and then comes into contact with the guide structure 11d. Because the angle between the guide structure 11d and the third shell wall 113 is acute, the guide structure 11d can guide the air inside the cabinet 2 to flow downwards. The air outlet 11b is located at the first shell wall 111. Because the angle between the second shell wall 112 and the first shell wall 111 is acute, and the second shell wall 112 and the air outlet 11b are opposite each other along the second direction X, the downward-flowing air inside the cabinet 2 will turn again after contacting the second shell wall 112 and flow out from the air outlet 11b along the second direction X.

[0058] refer to Figure 10 In some embodiments of this application, optionally, the connection structure 13 includes a protruding edge 131 fixedly connected to the housing 11, the protruding edge 131 having fastener holes 1311 for connection with the cabinet 2. This simplifies the connection structure 13, thereby reducing the structural complexity of the ventilation device 1. In the embodiments described in this application, the protruding edge 131 is annular and surrounds the housing 11. A plurality of fastener holes 1311 are evenly provided on the protruding edge 131 so that the housing 11 of the ventilation device 1 can be detachably mounted on the cabinet 2 of the power equipment cabinet 100 by fasteners.

[0059] refer to Figure 11 In some embodiments of this application, optionally, the connecting structure 13 includes a seal 132, which is connected to the flange 131 and used to seal the space between the flange 131 and the cabinet 2. The seal 132 prevents leakage at the connection surface between the connecting structure 13 and the flange 131, thereby preventing dust, debris, and moisture from entering the housing 11 from the connection point between the connecting structure 13 and the flange 131. This helps ensure the dustproof and waterproof effect of the ventilation device 1. In the embodiments described in this application, the seal 132 can specifically be attached to a sealing gasket on the flange 131. During installation, fasteners pass through the sealing gasket to ensure a sealing effect between the flange 131 and the cabinet 2.

[0060] In some embodiments of this application, optionally, the included angle between the second shell wall 112 and the first shell wall 111 is θ, where 20 degrees ≤ θ ≤ 80 degrees. Specifically, the included angle θ between the second shell wall 112 and the first shell wall 111 can be 20 degrees, 30 degrees, 35 degrees, 40 degrees, 45 degrees, 50 degrees, 55 degrees, 60 degrees, 70 degrees, 80 degrees, etc. When the included angle θ between the second shell wall 112 and the first shell wall 111 is less than 20 degrees, the second shell wall 112 has a large airflow resistance, which easily affects the airflow efficiency within the ventilation device 1. When the included angle θ between the second shell wall 112 and the first shell wall 111 is greater than 80 degrees, the guiding effect of the second shell wall 112 on the air is weak. In the embodiments described in this application, the included angle θ between the second shell wall 112 and the first shell wall 111 is preferably 45 degrees.

[0061] Secondly, embodiments of this application provide a power equipment cabinet 100, which may specifically be an energy storage cabinet, a switch cabinet, etc. (See reference...) Figure 12The power equipment cabinet 100 described in this application embodiment includes any of the ventilation devices 1 as described in the first aspect. Using this ventilation device 1 simplifies the structure of the power equipment cabinet 100. Specifically, with the help of the filter structure 12 and the housing 11, the ventilation device 1 can function as an independent module to achieve the waterproof and dustproof effects of the power equipment cabinet 100. Simultaneously, the simple structure of the filter structure 12 and the housing 11 facilitates the simplification of the ventilation device 1's structure, thereby reducing the structural complexity of the power equipment cabinet 100 and lowering its production and processing costs. Furthermore, the simplified structure of the ventilation device 1 also helps to reduce the requirements for its installation, use, and maintenance, thus improving the convenience of its installation, use, and maintenance. The connecting structure 13 is used for detachable connection with the cabinet body 2 of the power equipment cabinet 100, allowing the ventilation device 1 to be arranged as an independent module on the power equipment cabinet 100. This improves the flexibility of the ventilation device 1, enabling it to be disassembled and reassembled according to actual needs, thereby facilitating the installation, use, and maintenance of the power equipment cabinet 100.

[0062] refer to Figure 12 In some embodiments of this application, optionally, the power equipment cabinet 100 includes a cabinet body 2 and at least two ventilation devices 1. The cabinet body 2 is a structure for accommodating and installing electronic equipment, and is generally cubic in shape. The cabinet body 2 has a first through hole 21 and a second through hole 22. The first through hole 21 is used to allow outside air to flow into the cabinet body 2, and the second through hole 22 is used to allow air inside the cabinet body 2 to flow out of the cabinet body 2. The ventilation devices 1 are disposed inside the cabinet body 2, and at least two are provided. The ventilation devices 1 are detachably connected to the cabinet body 2, and at least one ventilation device 1 is located at the first through hole 21 of the cabinet body 2. The air inlet 11a of the ventilation device 1 located at the first through hole 21 communicates with the first through hole 21. At least one ventilation device 1 is located at the second through hole 22 of the cabinet body 2, and the air outlet 11b of the ventilation device 1 located at the second through hole 22 communicates with the second through hole 22. Outside air flows in through the air inlet 11a of the ventilation device 1 located at the first through-hole 21 and flows out through the air outlet 11b of the ventilation device 1 into the cabinet 2. Air inside the cabinet 2 flows in through the air inlet 11a of the ventilation device 1 located at the second through-hole 22 and then flows out through the air outlet 11b of the ventilation device 1 to the outside of the cabinet 2. Through the ventilation device 1, the electrical equipment cabinet 100 can achieve air convection within the cabinet 2, thereby improving the ventilation and heat dissipation efficiency of the electrical equipment cabinet 100.

[0063] In some embodiments of this application, optionally, the first through hole 21 and the second through hole 22 are respectively disposed on opposite sides of the cabinet 2, and the first through hole 21 and the second through hole 22 are disposed at different positions along the first direction Z of the cabinet 2. (See reference) Figure 12As shown, in the embodiment described in this application, the first through hole 21 and the second through hole 22 are respectively disposed on opposite sides of the cabinet 2 along the second direction X. The first through hole 21 is located at... Figure 12 On the left side of cabinet 2, and near Figure 12 The bottom of the middle cabinet 2; the second through hole 22 is located at... Figure 12 On the right side of the middle cabinet 2, and near Figure 12 The top of the cabinet 2. In other words, the first through hole 21 and the second through hole 22 are diagonally arranged on the cabinet 2. This allows for air convection within the cabinet 2 and also helps reduce dead zones in airflow, thereby improving the ventilation and heat dissipation efficiency of the power equipment cabinet 100.

[0064] refer to Figure 12 In some embodiments of this application, the first direction Z is parallel to the direction of gravity. Along the first direction Z, the distance from the center of the second through hole 22 to the end of the cabinet 2 facing the ground is L2, and the distance from the center of the first through hole 21 to the end of the cabinet 2 facing the ground is L1. The ratio of L2 to L1 is k, where k is not less than 2 and not greater than 8. In other words, L2 is not less than twice L1 and not greater than eight times L1. k can specifically be 2, 3, 4, 5, 6, 7, 8, etc., which will not be listed here. When k is less than 2, the difference between L1 and L2 is small. This means that the distance between the first through hole 21 and the second through hole 22 along the first direction Z is relatively close, which will increase the dead angle of airflow during convection in the cabinet 2. When k is greater than 8, the difference between L1 and L2 is large. This means that the distance between the first through hole 21 and the second through hole 22 along the first direction Z is relatively large, which can easily affect the convection of air in the cabinet 2, thereby affecting the ventilation efficiency of the cabinet 2.

[0065] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this application.

[0066] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or at least two of the features. In the description of this utility model, unless otherwise stated, "at least two" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0067] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "left", "right", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0068] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0069] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or at least two embodiments or examples.

[0070] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A ventilation device, characterized in that include: The housing (11) has an air inlet (11a), an air outlet (11b), and a flow channel (11c). The air inlet (11a) and the air outlet (11b) are both connected to the flow channel (11c). The housing (11) has a first direction (Z). The air inlet (11a) and the air outlet (11b) are disposed at different positions on the housing (11) along the first direction (Z). A filter structure (12) is fixedly connected to the housing (11), and the filter structure (12) is disposed at least once in the flow channel (11c), the air inlet (11a), and the air outlet (11b). A connecting structure (13) is fixedly connected to the housing (11) and is used for detachable connection with the cabinet (2).

2. The venting device of claim 1, wherein, The housing (11) has a second direction (X) that intersects with the first direction (Z); The flow channel (11c) extends along the first direction (Z), and the housing (11) includes a guide structure (11d) which is opposite to the air inlet (11a) along the second direction (X). The guide structure (11d) is used to guide the air flowing in from the air inlet (11a) to flow along the first direction (Z). And / or, the guide structure (11d) is opposite the air outlet (11b) along the second direction (X), and the guide structure (11d) is used to guide the air in the flow channel (11c) to flow out from the air outlet (11b).

3. The ventilation device according to claim 2, characterized in that, The housing (11) includes a first housing wall (111) and a second housing wall (112), the first housing wall (111) and the second housing wall (112) are connected, and the included angle between the first housing wall (111) and the second housing wall (112) is an acute angle. The air inlet (11a) or the air outlet (11b) is disposed at the first housing wall (111), and the air inlet (11a) or the air outlet (11b) and the second housing wall (112) are opposite to each other in the second direction (X). The second housing wall (112) constitutes the guide structure (11d).

4. The ventilation device according to any one of claims 1-3, characterized in that, The air inlet (11a) and / or the air outlet (11b) include a plurality of through holes provided on the housing (11), the diameter of which is larger than the diameter of the filter holes of the filter structure (12).

5. The ventilation device according to any one of claims 1-3, characterized in that, The connection structure (13) includes a flange (131) and a seal (132). The flange (131) is fixedly connected to the housing (11) and has a fastener hole (1311) for connecting to the cabinet (2). The seal (132) is connected to the flange (131) and is used to seal between the flange (131) and the cabinet (2).

6. The ventilation device according to claim 3, characterized in that, The angle between the second shell wall (112) and the first shell wall (111) is θ, where 20 degrees ≤ θ ≤ 80 degrees.

7. A power equipment cabinet, characterized in that, The power equipment cabinet includes the ventilation device (1) as described in any one of claims 1-6.

8. The power equipment cabinet according to claim 7, characterized in that, The power equipment cabinet includes a cabinet body (2) and at least two of the ventilation devices (1); The cabinet (2) has a first through hole (21) and a second through hole (22). The ventilation device (1) is installed inside the cabinet (2) and there are at least two of them. The ventilation device (1) is detachably connected to the cabinet (2). At least one of the ventilation devices (1) is located at the first through hole (21) of the cabinet (2), and the air inlet (11a) of the ventilation device (1) located at the first through hole (21) is connected to the first through hole (21). At least one of the ventilation devices (1) is located at the second through hole (22) of the cabinet (2), and the air outlet (11b) of the ventilation device (1) located at the second through hole (22) is connected to the second through hole (22).

9. The power equipment cabinet according to claim 8, characterized in that, The first through hole (21) and the second through hole (22) are respectively provided on opposite sides of the cabinet (2), and the first through hole (21) and the second through hole (22) are provided at different positions of the cabinet (2) along the first direction (Z).

10. The power equipment cabinet according to claim 9, characterized in that, The first direction (Z) is parallel to the direction of gravity. Along the first direction (Z), the ratio of the distance from the center of the second through hole (22) to the end of the cabinet (2) facing the ground to the distance from the center of the first through hole (21) to the end of the cabinet (2) facing the ground is k, where 2≤k≤8.

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