Outdoor electrical heat dissipation cabinet and outdoor electrical equipment

Abstract

The invention provides an outdoor electrical heat dissipation cabinet and outdoor electrical equipment. The outdoor electrical heat dissipation cabinet comprises a cabinet body, a baffle plate and a water retaining and air guiding structure, the baffle plate is arranged on the cabinet body and forms an accommodating cavity with the cabinet body; vent holes are formed in the baffles; the water retaining and air guiding structure is located in the containing cavity. The water retaining and air guiding structure comprises an upper arc body and a lower arc body; two arc-shaped ends of the upper arc body are respectively a first end and a second end, the first end is connected with the surface, facing the accommodating cavity, of the baffle, two arc-shaped ends of the lower arc body are respectively a third end and a fourth end, and the third end is connected with the surface, facing the accommodating cavity, of the baffle; an airflow opening is formed between the second end and the lower arc body and communicates with the containing cavity and the ventilation hole. The second end and the lower arc body are projected vertically downwards to the same horizontal plane, and the projection of the second end is located in the projection of the lower arc body; the fourth end is higher than the second end. The outdoor electrical heat dissipation cabinet solves the problem that an existing outdoor electrical heat dissipation cabinet cannot achieve good balance between waterproof and ventilation heat dissipation effects.

Description

Technical Field

[0001] The present invention relates to the technical field of outdoor communication equipment, and in particular to an outdoor electrical heat dissipation cabinet and outdoor electrical equipment. Background Art

[0002] In the current installation of outdoor electrical equipment (for example, intelligent monitoring equipment and other highly integrated equipment with high heat dissipation requirements), how to achieve a balance between waterproofing and ventilation in external electrical cabinets is a long-standing problem. Generally speaking, if the number of ventilation holes is increased to facilitate ventilation, it is inevitable that foreign matter such as rainwater will enter the cabinet through the ventilation holes. If the number of ventilation holes is increased to prevent foreign matter such as rainwater from entering the cabinet, it is inevitable that the number of ventilation holes will be reduced, which will reduce the ventilation and heat dissipation effect.

[0003] In order to strike a balance between waterproofing and ventilation, existing outdoor electrical cabinets are usually designed with louver-type waterproof baffles at the ventilation holes or with the ventilation holes tilted in the vertical direction. Although the above two methods can play a waterproof role to a certain extent, they have the following obvious limitations and defects: 1. Poor waterproof effect: Traditional louver-type waterproof baffles can only protect against rain from directly above or diagonally above, and are powerless against the phenomenon of rolling rain in strong winds, and cannot achieve high-efficiency waterproofing, thereby reducing the working reliability of outdoor electrical equipment; 2. Easy to splash: Under strong rainfall conditions with wind outdoors, rainwater falling on the tilted baffle is prone to splashing, causing rainwater to splash into the equipment, affecting the normal operation and service life of the equipment; 3. Poor ventilation effect: Ventilation and heat dissipation are important guarantees for the stable operation of outdoor equipment. However, the vent design of traditional waterproof structures is often too conservative, resulting in poor air circulation and ineffective heat dissipation. Especially in the high temperature outdoor environment in summer, the equipment is prone to malfunction due to overheating.

[0004] Therefore, the outdoor electrical heat dissipation cabinets in the existing technology have obvious deficiencies in terms of waterproofing, rainproofing, splashproofing, ventilation and heat dissipation, and cannot achieve a good balance between waterproofing and ventilation and heat dissipation effects; especially in emerging application fields such as outdoor intelligent monitoring, edge computing and energy supply, these deficiencies are more prominent, which directly affects the installation and use efficiency of outdoor equipment. Summary of the Invention

[0005] The present invention provides an outdoor electrical heat dissipation cabinet and outdoor electrical equipment, so as to solve the problem that the outdoor electrical heat dissipation cabinet in the prior art cannot achieve a good balance between waterproofing and ventilation and heat dissipation effects.

[0006] In order to solve the above problems, according to one aspect of the present invention, an outdoor electrical heat dissipation cabinet is provided, comprising: a cabinet body, a baffle and a water-blocking and air-guiding structure; the baffle is arranged on the cabinet body, and forms a receiving cavity with the cabinet body, and the receiving cavity is used to receive electrical equipment; the baffle has ventilation holes for ventilation, and the ventilation holes are respectively connected to the outside of the cabinet body and the receiving cavity; the water-blocking and air-guiding structure is arranged at the ventilation holes and is located in the receiving cavity; the water-blocking and air-guiding structure comprises an upper arc body and a lower arc body, the upper arc body has an arc and extends downward; the lower arc body has an arc and extends upward; the arc-shaped ends of the upper arc body are respectively a first end and a second end, and the first end faces the baffle toward The surface of the accommodating cavity is connected, and the two ends of the arc of the lower arc body are respectively the third end and the fourth end, and the third end is connected to the surface of the baffle facing the accommodating cavity; there is an air flow outlet between the second end and the lower arc body, and the air flow outlet is connected to the accommodating cavity and the ventilation hole respectively; the second end and the lower arc body are vertically downward to the same horizontal plane, and the projection of the second end is located within the projection of the lower arc body; the fourth end is higher than the second end; wherein, the gas-liquid mixture flowing in from the ventilation hole contacts the upper arc body and the lower arc body respectively, and the liquid in the gas-liquid mixture is deposited on the lower arc body and the upper arc body, and the gas in the gas-liquid mixture flows into the accommodating cavity from the air flow outlet to ventilate and dissipate heat to the accommodating cavity.

[0007] Furthermore, there are multiple ventilation holes, and the multiple ventilation holes are arranged in columns along the vertical direction and in rows along the horizontal direction to form a ventilation matrix; there are multiple water-retaining and air-guiding structures, and the multiple water-retaining and air-guiding structures are arranged in a one-to-one correspondence with the multiple ventilation holes; or, each water-retaining and air-guiding structure cooperates with the multiple ventilation holes located in the same row at the same time, so that the multiple ventilation holes located in the same row are connected to the airflow outlet of the corresponding water-retaining and air-guiding structure at the same time.

[0008] Furthermore, multiple water-blocking and air-guiding structures corresponding to the multiple ventilation holes located in the same row are arranged in parallel and spaced apart, and the gas flowing in from the air flow port of a water-blocking and air-guiding structure contacts the lower part of the lower arc body of the water-blocking and air-guiding structure above the water-blocking and air-guiding structure to make the gas flow in reverse direction.

[0009] Furthermore, the ventilation hole is a circular hole, and the upper arc body and the lower arc body are circular arc bodies respectively; wherein, the plane extending vertically and containing the central axis of the ventilation hole is the first section, and the multiple ventilation holes and the corresponding multiple water-retaining and air-guiding structures located in the same row are intercepted by the first section, the first end is connected to the lower part of the ventilation hole above the corresponding ventilation hole, and the third end is connected to the lower part of the corresponding ventilation hole; or, the first end is connected to the upper part of the corresponding ventilation hole, and the third end is connected to the lower part of the corresponding ventilation hole.

[0010] Further, the cross-sectional shape of the upper arc body is a quarter of a circle arc, which is a first circle arc, and the cross-sectional shape of the lower arc body is a quarter of a circle arc, which is a second circle arc, under the condition that the first end is connected with the upper part of the corresponding vent hole and the third end is connected with the lower part of the corresponding vent hole; wherein the radius of the first circle arc is smaller than the radius of the second circle arc; the first circle arc of one water-retaining and air-guiding structure is connected with the second circle arc above the water-retaining and air-guiding structure, and the second circle arc of one water-retaining and air-guiding structure is connected with the first circle arc below the water-retaining and air-guiding structure.

[0011] Further, the center of the first circle arc of one water-retaining and air-guiding structure is located at the upper part of the corresponding vent hole, and the center of the second circle arc of the water-retaining and air-guiding structure is located at the lower part of the vent hole above the vent hole; the interval distance of adjacent two vent holes in the same column in the vertical direction is R; the diameter of the vertical cross section of the vent hole is R, the radius of the first circle arc of the water-retaining and air-guiding structure corresponding to the vent hole is R, the radius of the second circle arc is 2R, and the thickness of the baffle in the horizontal direction is not less than R and not greater than 2R.

[0012] Further, the cross-sectional shape of the upper arc body is an eighth of a circle arc, which is a third circle arc, and the cross-sectional shape of the lower arc body is a quarter of a circle arc, which is a fourth circle arc, under the condition that the first end is connected with the upper part of the corresponding vent hole and the third end is connected with the lower part of the corresponding vent hole; wherein the radius of the third circle arc is smaller than the radius of the fourth circle arc; the third circle arc of one water-retaining and air-guiding structure is arranged in a spaced manner with the fourth circle arc above the water-retaining and air-guiding structure, and the fourth circle arc of one water-retaining and air-guiding structure is arranged in a spaced manner with the third circle arc below the water-retaining and air-guiding structure.

[0013] Further, the center of the third circle arc of one water-retaining and air-guiding structure is located at the lower part of the corresponding vent hole, and the center of the fourth circle arc of the water-retaining and air-guiding structure is located at the upper part of the vent hole; the diameter of the vertical cross section of the vent hole is R, the radius of the third circle arc of the water-retaining and air-guiding structure corresponding to the vent hole is R, the radius of the fourth circle arc is R, and the thickness of the baffle in the horizontal direction is not less than R and not greater than 2R.

[0014] Further, in the condition that the plurality of water-blocking air-guiding structures are arranged one by one corresponding to the plurality of ventilation holes, the upper arc body and the lower arc body are both spherical shell structures; in the condition that each water-blocking air-guiding structure cooperates with the plurality of ventilation holes in the same row at the same time, the upper arc body and the lower arc body are both cylindrical shell structures; and / or, the ventilation matrix is located in the middle of the baffle and is arranged around the center of the baffle; the diameter of the vertical section of the ventilation hole is R, R is less than or equal to 2 cm; and / or, one baffle and the water-blocking air-guiding structure arranged on the baffle correspond to a water-blocking air-guiding group, there are at least two water-blocking air-guiding groups, and the baffles in the two water-blocking air-guiding groups are arranged on the two sides of the cabinet along the horizontal direction to make the water-blocking air-guiding group on one side take in air and the water-blocking air-guiding group on the other side take out air.

[0015] According to another aspect of the present application, an outdoor electrical equipment is provided, which comprises the outdoor electrical heat dissipation cabinet described above, and further comprises a battery pack, a wireless communication device, an alarm, a smoke sensor and a controller arranged in the accommodating cavity respectively; the battery pack is connected with the wireless communication device, the alarm, the smoke sensor and the controller to provide electric energy; the controller is electrically connected with the wireless communication device, the alarm and the smoke sensor; wherein the wireless communication device is used for transmitting signals, the alarm is used for sound and flashing light alarm, and the smoke sensor is used for monitoring the smoke concentration in the accommodating cavity and feeding back to the controller through electric signals.

[0016] According to the technical scheme of the present application, the present application provides an outdoor electrical heat dissipation cabinet, which comprises a cabinet, a baffle and a water-blocking air-guiding structure; the baffle is arranged on the cabinet to form an accommodating cavity with the cabinet, and the accommodating cavity is used for accommodating electrical equipment; the baffle has ventilation holes for ventilation, and the ventilation holes are respectively communicated with the outside of the cabinet and the accommodating cavity; the water-blocking air-guiding structure is arranged at the ventilation hole and located in the accommodating cavity; the water-blocking air-guiding structure comprises an upper arc body and a lower arc body, the upper arc body has an arc and extends downward, and the lower arc body has an arc and extends upward; the two ends of the arc of the upper arc body are a first end and a second end respectively, the first end is connected with the surface of the baffle facing the accommodating cavity, the two ends of the arc of the lower arc body are a third end and a fourth end respectively, and the third end is connected with the surface of the baffle facing the accommodating cavity; there is an airflow port between the second end and the lower arc body, and the airflow port is respectively communicated with the accommodating cavity and the ventilation hole; the projection of the second end on the same horizontal plane is located in the projection of the lower arc body when the second end and the lower arc body are projected vertically downward; the fourth end is higher than the second end; wherein the gas-liquid mixture flowing into the ventilation hole contacts the upper arc body and the lower arc body, the liquid in the gas-liquid mixture deposits on the upper arc body and the lower arc body, and the gas in the gas-liquid mixture flows into the accommodating cavity from the airflow port to ventilate and dissipate heat for the accommodating cavity.

[0017] The present invention provides a water-retaining and air-guiding structure including an upper arc body and a lower arc body, so that the gas-liquid mixture flowing in from the ventilation hole can contact the upper arc body and the lower arc body respectively, and then the liquid in the gas-liquid mixture is deposited on the lower arc body and the upper arc body to achieve gas-liquid separation, and the gas in the gas-liquid mixture can flow into the accommodating cavity from the air flow port, thereby achieving ventilation and heat dissipation of the accommodating cavity; by setting the projection of the second end to be located within the projection of the lower arc body, and the fourth end to be higher than the second end, the liquid separated from the upper arc body can fall onto the lower arc body, and then be discharged from the accommodating cavity; the present invention adopts an arc The structure, in actual use, can ensure that rainwater does not enter the accommodating cavity on the one hand, and can be deposited on the lower arc and quickly flow out; on the other hand, the arc structure design can reduce the secondary ejection of rainwater and avoid rainwater splashing. The internal curvature of the upper arc and the lower arc are designed to achieve efficient waterproofing and efficient ventilation; the outdoor electrical heat dissipation cabinet proposed in the present invention solves the problem that the outdoor electrical heat dissipation cabinet in the prior art cannot achieve a good balance between waterproofing and ventilation and heat dissipation effects; compared with the traditional louver-type waterproof ventilation structure, the present invention significantly improves the waterproof performance and ventilation efficiency. Through the design of the upper and lower arc bodies, not only waterproofing and splashing prevention are achieved, but also the direct windward area is greatly reduced, the thickness of the box is reduced, and the installation flexibility and safety of outdoor equipment are improved; at the same time, the present invention has a simple structure and low cost, and is easy to apply on a large scale. It is especially suitable for the installation of outdoor equipment such as visual connection, smart connection, and energy business, which greatly improves the stability and reliability of the product under adverse weather conditions, reduces maintenance costs, and enhances market competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 A schematic diagram of the external structure of an outdoor electrical heat dissipation cabinet provided by an embodiment of the present invention is shown;

[0020] Figure 2 A schematic diagram of a portion of the structure in which a first end in a first cross section is connected to a lower portion of a ventilation hole above a corresponding ventilation hole, provided in a first embodiment of the present invention;

[0021] Figure 3 Shown Figure 2 A partial enlarged schematic diagram of a part of the structure;

[0022] Figure 4 Shown Figure 3 A partial enlarged schematic diagram of a part of the structure;

[0023] Figure 5A schematic diagram of a portion of the structure in which the first end provided by the second embodiment of the present invention is connected to the upper portion of the corresponding ventilation hole is shown;

[0024] Figure 6 Shown Figure 5 A partial enlarged schematic diagram of a part of the structure;

[0025] Figure 7 Shown Figure 6 A partial enlarged schematic diagram of part of the structure.

[0026] The above drawings include the following reference numerals:

[0027] 10. Cabinet; 11. Accommodation cavity;

[0028] 20. Baffle; 21. Ventilation hole; 22. Ventilation matrix;

[0029] 30. Water-retaining and air-guiding structure; 31. Upper arc body; 311. First end; 312. Second end; 32. Lower arc body; 321. Third end; 322. Fourth end; 33. Air flow outlet; 34. First arc; 35. Second arc; 36. Third arc; 37. Fourth arc. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] like Figures 1 to 7As shown, an embodiment of the present invention provides an outdoor electrical heat dissipation cabinet, comprising: a cabinet body 10, a baffle 20 and a water-blocking and air-guiding structure 30; the baffle 20 is arranged on the cabinet body 10, and forms a accommodating cavity 11 with the cabinet body 10, and the accommodating cavity 11 is used to accommodate electrical equipment; the baffle 20 has ventilation holes 21 for ventilation, and the ventilation holes 21 are respectively connected to the outside of the cabinet body 10 and the accommodating cavity 11; the water-blocking and air-guiding structure 30 is arranged at the ventilation holes 21 and is located in the accommodating cavity 11; the water-blocking and air-guiding structure 30 includes an upper arc body 31 and a lower arc body 32, the upper arc body 31 has an arc and extends downward; the lower arc body 32 has an arc and extends upward; the arc-shaped ends of the upper arc body 31 are respectively a first end 311 and a second end 312, and the first end 311 is connected to the surface of the baffle 20 facing the accommodating cavity 11 The arc-shaped ends of the lower arc body 32 are respectively the third end 321 and the fourth end 322, and the third end 321 is connected to the surface of the baffle 20 facing the accommodating cavity 11; there is an air flow outlet 33 between the second end 312 and the lower arc body 32, and the air flow outlet 33 is connected to the accommodating cavity 11 and the ventilation hole 21 respectively; the second end 312 and the lower arc body 32 are vertically projected downward to the same horizontal plane, and the projection of the second end 312 is located within the projection of the lower arc body 32; the fourth end 322 is higher than the second end 312; wherein, the gas-liquid mixture flowing in from the ventilation hole 21 contacts the upper arc body 31 and the lower arc body 32 respectively, and the liquid in the gas-liquid mixture is deposited on the lower arc body 32 and the upper arc body 31, and the gas in the gas-liquid mixture flows into the accommodating cavity 11 from the air flow outlet 33 to ventilate and dissipate heat for the accommodating cavity 11.

[0032] The present invention provides a water-retaining and air-guiding structure 30 including an upper arc body 31 and a lower arc body 32, so that the gas-liquid mixture flowing in from the ventilation hole 21 can contact the upper arc body 31 and the lower arc body 32 respectively, and then the liquid in the gas-liquid mixture is deposited on the lower arc body 32 and the upper arc body 31 to achieve gas-liquid separation, and the gas in the gas-liquid mixture can flow from the air flow port 33 into the accommodating cavity 11, thereby achieving ventilation and heat dissipation of the accommodating cavity 11; by setting the projection of the second end 312 to be located within the projection of the lower arc body 32, and the fourth end 322 to be higher than the second end 312, the liquid separated from the upper arc body 31 can fall on the lower arc body 32, thereby discharging Out of the accommodating cavity 11; the present invention adopts a radian structure. When in actual use, on the one hand, it can ensure that rainwater does not enter the accommodating cavity 11, and can be deposited on the lower arc body 32 and quickly flow out. On the other hand, the radian structure design can reduce the secondary ejection of rainwater and avoid rainwater splashing. The internal radian coordination design of the upper arc body 31 and the lower arc body 32 can achieve efficient waterproofing and efficient ventilation. The outdoor electrical heat dissipation cabinet proposed by the present invention solves the problem that the outdoor electrical heat dissipation cabinet in the prior art cannot achieve a good balance between waterproofing and ventilation and heat dissipation effects. Compared with the traditional louver-type waterproof ventilation structure, the present invention significantly improves the waterproof performance and ventilation efficiency. Through the design of the upper arc body 31 and the lower arc body 32, not only waterproofing and splashing prevention are achieved, but also the direct windward area is greatly reduced, the thickness of the box is reduced, and the installation flexibility and safety of outdoor equipment are improved. At the same time, the present invention has a simple structure and low cost, is easy to apply on a large scale, and is particularly suitable for the installation of outdoor equipment such as visual connection, smart connection, and energy business. It greatly improves the stability and reliability of the product under adverse weather conditions, reduces maintenance costs, and enhances market competitiveness.

[0033] like Figure 1 、 Figure 2 and Figure 5 As shown, there are multiple ventilation holes 21, and the multiple ventilation holes 21 are arranged in columns along the vertical direction and in rows along the horizontal direction to form a ventilation matrix 22; there are multiple water-retaining and air-guiding structures 30, and the multiple water-retaining and air-guiding structures 30 are arranged in a one-to-one correspondence with the multiple ventilation holes 21; or, each water-retaining and air-guiding structure 30 cooperates with the multiple ventilation holes 21 located in the same row at the same time, so that the multiple ventilation holes 21 located in the same row are connected to the air flow outlet 33 of the corresponding water-retaining and air-guiding structure 30 at the same time.

[0034] By forming a ventilation matrix 22, the overall ventilation efficiency and waterproof ability of the heat dissipation cabinet are improved; each ventilation hole 21 cooperates with the corresponding water-retaining and air-guiding structure 30, whether in the vertical direction or the horizontal direction, to ensure that the liquid in the gas-liquid mixture is effectively intercepted and discharged, and the gas enters the accommodating cavity 11 unimpeded; when the water-retaining and air-guiding structure 30 cooperates with multiple ventilation holes 21 in the same row, a continuous airflow channel can be formed to enhance the guidance and fluidity of the airflow and further improve the heat dissipation effect; the above design is particularly suitable for outdoor electrical equipment that requires large-area ventilation and heat dissipation, such as large server cabinets, outdoor substations, etc., and can effectively dissipate heat while ensuring the dryness of the equipment inside, thereby maintaining stable operation of the equipment.

[0035] like Figure 2 and Figure 5 As shown, multiple water-retaining and air-guiding structures 30 corresponding to the multiple ventilation holes 21 located in the same row are arranged in parallel and spaced apart. The gas flowing in from the air flow outlet 33 of a water-retaining and air-guiding structure 30 contacts the lower part of the lower arc body 32 of the water-retaining and air-guiding structure 30 above the water-retaining and air-guiding structure 30 to make the gas flow in reverse direction.

[0036] By optimizing the gas flow path, the ventilation efficiency of the heat dissipation cabinet is improved; the parallel and spaced arrangement of the water-retaining and air-guiding structures 30 enables the airflow to contact the lower arc 32 of the upper water-retaining and air-guiding structure 30 after entering the accommodating cavity 11 through the airflow port 33, prompting the gas to change its flow direction and form a wider airflow network, thereby increasing the uniformity of airflow distribution in the accommodating cavity 11 and improving the heat dissipation effect; the above design is particularly suitable for outdoor electrical equipment that requires fine temperature control, such as precision instruments, high-performance computing equipment, etc., and can effectively prevent local overheating and ensure long-term stable operation of the equipment.

[0037] like Figure 2 and Figure 5 As shown, the ventilation hole 21 is a circular hole, and the upper arc body 31 and the lower arc body 32 are circular arc bodies; wherein, the plane extending vertically and containing the central axis of the ventilation hole 21 is the first cross section, and the multiple ventilation holes 21 and the corresponding multiple water-blocking and air-guiding structures 30 located in the same row are intercepted with the first cross section, as shown in FIG. Figure 2 、 Figure 3 and Figure 4 As shown, the first end 311 is connected to the lower portion of the ventilation hole 21 above the corresponding ventilation hole 21, and the third end 321 is connected to the lower portion of the corresponding ventilation hole 21; or Figure 5 、 Figure 6 and Figure 7 As shown, the first end 311 is connected to the upper portion of the corresponding ventilation hole 21 , and the third end 321 is connected to the lower portion of the corresponding ventilation hole 21 .

[0038] The circular hole-type ventilation hole 21 and the upper arc body 31 and the lower arc body 32 with an arc body design are intended to provide a gas-liquid separation design with a simple structure and significant effect, which is easy to process and form; the circular hole-type ventilation hole 21 is conducive to the smooth entry of airflow, and the water-retaining and air-guiding structure 30 with an arc body design can effectively intercept and guide the flow of liquid to prevent rainwater from directly entering the accommodating cavity 11; the above design not only improves the waterproof performance, but also ensures good ventilation effect, and is suitable for various outdoor environments, especially rainy or windy areas; actual application scenarios include but are not limited to outdoor communication equipment, intelligent monitoring systems, edge computing nodes, etc., which can protect the equipment from rainwater in severe weather conditions, while maintaining normal heat dissipation of the equipment to ensure its stable operation.

[0039] like Figure 2 、 Figure 3 and Figure 4 As shown, under the conditions that the first end 311 is connected to the lower part of the ventilation hole 21 above the corresponding ventilation hole 21, and the third end 321 is connected to the lower part of the corresponding ventilation hole 21, the cross-sectional shape of the upper arc body 31 is a quarter arc, and the quarter arc is the first arc 34, and the cross-sectional shape of the lower arc body 32 is a quarter arc, and the quarter arc is the second arc 35; wherein, the radius of the first arc 34 is smaller than the radius of the second arc 35; the first arc 34 of a water-retaining and air-guiding structure 30 is connected to the second arc 35 above the water-retaining and air-guiding structure 30, and the second arc 35 of a water-retaining and air-guiding structure 30 is connected to the first arc 34 below the water-retaining and air-guiding structure 30.

[0040] By adjusting the curvature and radius of the upper arc 31 and the lower arc 32, more effective gas-liquid separation is achieved; the sequential connection of multiple first arcs 34 and second arcs 35 forms a herringbone structure, which can better capture and guide the liquid in the gas-liquid mixture, so that it flows downward along the arc surface and deposits, while the gas enters the accommodating cavity 11 through the air flow port 33; the above-mentioned optimized design improves the waterproof performance and ventilation efficiency, and is particularly suitable for the use of outdoor electrical equipment in rainy seasons or humid environments; through experimental verification, the design can significantly reduce the probability of rainwater entering while maintaining good ventilation and heat dissipation effects, and is suitable for various outdoor electrical equipment, such as surveillance cameras, wireless communication base stations, solar inverters, etc., and can provide reliable protection in complex and changeable outdoor environments to ensure the continuous and stable operation of the equipment.

[0041] like Figure 2 、 Figure 3 and Figure 4As shown, the center of the first arc 34 of a water-retaining and air-guiding structure 30 is located at the upper part of the corresponding ventilation hole 21, and the center of the second arc 35 of the water-retaining and air-guiding structure 30 is located at the lower part of the ventilation hole 21 above the ventilation hole 21; the vertical spacing distance between two adjacent ventilation holes 21 in the multiple ventilation holes 21 located in the same row is R; the diameter of the vertical cross-section of the ventilation hole 21 is R, the radius of the first arc 34 of the water-retaining and air-guiding structure 30 corresponding to the ventilation hole 21 is R, the radius of the second arc 35 is 2R, and the thickness of the baffle 20 in the horizontal direction is not less than R and not greater than 2R.

[0042] Through the above-mentioned further parameterized design, the performance of the water-retaining and air-guiding structure is further optimized. By precisely controlling the position and radius of the first arc 34 and the second arc 35, it is possible to ensure that the liquid in the gas-liquid mixture is effectively intercepted and deposited on the lower arc body 32, while the gas smoothly enters the accommodating cavity 11 through the air flow opening 33; the above-mentioned design takes into account the relationship between the diameter of the ventilation hole 21 and the thickness of the baffle 20, ensuring the compactness and practicality of the structure, while also facilitating processing and saving materials; actual application scenarios include but are not limited to heat dissipation and waterproofing of outdoor electrical equipment, such as smart street lights, public broadcasting systems, outdoor billboards, etc., which can ensure that the interior of the equipment is dry while providing sufficient ventilation, ensuring that the equipment can operate stably under various weather conditions, extending the service life of the equipment and reducing maintenance costs.

[0043] like Figure 5 、 Figure 6 and Figure 7 As shown, under the condition that the first end 311 is connected to the upper part of the corresponding ventilation hole 21 and the third end 321 is connected to the lower part of the corresponding ventilation hole 21, the cross-sectional shape of the upper arc body 31 is a one-eighth arc, and the one-eighth arc is the third arc 36, and the cross-sectional shape of the lower arc body 32 is a quarter arc, and the quarter arc is the fourth arc 37; wherein, the radius of the third arc 36 is smaller than the radius of the fourth arc 37; the third arc 36 of a water-retaining and air-guiding structure 30 is spaced apart from the fourth arc 37 above the water-retaining and air-guiding structure 30, and the fourth arc 37 of a water-retaining and air-guiding structure 30 is spaced apart from the third arc 36 below the water-retaining and air-guiding structure 30.

[0044] By adopting different curvatures for the third arc 36 and the fourth arc 37, a more refined gas-liquid separation is achieved. This design allows the liquid in the gas-liquid mixture to flow along the arc surface and deposit on the lower arc 32 after contacting the upper arc 31, while the gas enters the accommodating chamber 11 through the airflow opening 33. Experimental verification shows that the above design performs well in terms of waterproofing and ventilation, and is particularly suitable for outdoor environments with strong winds or complex airflow. Practical application scenarios include but are not limited to outdoor intelligent monitoring equipment, edge computing equipment, outdoor power supply equipment, etc., and can provide efficient ventilation and heat dissipation while ensuring the internal dryness of the equipment, ensuring stable operation of the equipment in adverse weather conditions, and improving the reliability and service life of the equipment.

[0045] like Figure 5 、 Figure 6 and Figure 7 As shown, the center of the third arc 36 of a water-retaining and air-guiding structure 30 is located at the lower part of the corresponding ventilation hole 21, and the center of the fourth arc 37 of the water-retaining and air-guiding structure 30 is located at the upper part of the ventilation hole 21; the diameter of the vertical section of the ventilation hole 21 is R, the radius of the third arc 36 of the water-retaining and air-guiding structure 30 corresponding to the ventilation hole 21 is R, the radius of the fourth arc 37 is R, and the thickness of the baffle 20 in the horizontal direction is not less than R and not greater than 2R.

[0046] By precisely adjusting the radii of the third arc 36 and the fourth arc 37, as well as the relationship between the diameter of the ventilation hole 21 and the thickness of the baffle 20, structural optimization is achieved; the above design not only ensures good waterproof performance, but also ensures sufficient ventilation, and can provide a stable gas-liquid separation effect under a variety of outdoor conditions; the actual application scenarios are wide-ranging, including but not limited to outdoor communication facilities, intelligent transportation systems, environmental monitoring stations, etc., and can provide necessary ventilation and heat dissipation while ensuring the dryness of the equipment, ensuring the stable operation of the equipment in various environments, reducing the maintenance cost of the equipment, and improving the reliability and safety of the equipment.

[0047] Optionally, under the condition that the plurality of water-blocking and air-guiding structures 30 are arranged one-to-one corresponding to the plurality of ventilation holes 21, the upper arc body 31 and the lower arc body 32 are both spherical shell structures; under the condition that each water-blocking and air-guiding structure 30 cooperates with the plurality of ventilation holes 21 in the same row at the same time, the upper arc body 31 and the lower arc body 32 are both cylindrical shell structures; and / or, the ventilation matrix 22 is located in the middle of the baffle 20 and is arranged around the center of the baffle 20; the diameter of the vertical section of the ventilation hole 21 is R, R is less than or equal to 2 cm; and / or, one baffle 20 and the water-blocking and air-guiding structure 30 arranged corresponding to the baffle 20 form a water-blocking and air-guiding group, there are at least two water-blocking and air-guiding groups, and the two baffles 20 in the at least two water-blocking and air-guiding groups are arranged on both sides of the cabinet 10 along the horizontal direction, so that the water-blocking and air-guiding group on one side inhales air and the water-blocking and air-guiding group on the other side exhales air.

[0048] By optimizing the shape of the water-blocking and air-guiding structure 30 and the layout of the ventilation hole 21, the ventilation efficiency and waterproof performance of the outdoor electrical heat dissipation cabinet are improved; the upper arc body 31 and the lower arc body 32 of the spherical shell structure can provide a wider gas-liquid separation interface, enhancing the waterproof effect, while the cylindrical shell structure is conducive to the guided flow of gas, improving the ventilation efficiency, and also facilitating installation and processing; the layout of the ventilation matrix 22 ensures uniform distribution of airflow, avoids local overheating, and improves heat dissipation effect; the above-mentioned comprehensive design is particularly suitable for outdoor electrical equipment that requires large air volume heat dissipation and high strength waterproof, such as outdoor cabinets of large data centers, electrical cabinets of high-voltage substations, etc., which can ensure dryness inside the equipment while providing efficient ventilation and heat dissipation, ensuring stable operation of the equipment under various weather conditions, reducing equipment failure rate and maintenance cost, and improving equipment reliability and safety.

[0049] The application also provides an outdoor electrical equipment, which comprises the above-mentioned outdoor electrical heat dissipation cabinet, and further comprises a battery pack, a wireless communicator, an alarm, a smoke sensor and a controller arranged in the accommodation cavity 11 respectively; the battery pack is connected with the wireless communicator, the alarm, the smoke sensor and the controller to provide electric energy; the controller is electrically connected with the wireless communicator, the alarm and the smoke sensor; wherein the wireless communicator is used for signal transmission, the alarm is used for sound and flashing light alarm, and the smoke sensor is used for monitoring the smoke concentration in the accommodation cavity 11 and feeding back an electric signal to the controller.

[0050] The integrated solution for outdoor electrical equipment proposed in the present invention integrates key components such as a battery pack, wireless communicator, alarm, smoke sensor, and controller within the housing 11 of an outdoor electrical heat dissipation cabinet. The battery pack provides power to the other components, while the controller coordinates the functions of each component to achieve intelligent management of the equipment. The wireless communicator ensures data transmission between the equipment and the remote monitoring system, while the alarm and smoke sensor provide a safety warning function, promptly issuing alerts when equipment anomalies occur, preventing potential safety risks. This integrated solution is particularly suitable for scenarios such as outdoor intelligent monitoring, communication base stations, and edge computing nodes. It can provide comprehensive safety protection and intelligent management while ensuring internal dryness and heat dissipation of the equipment, thereby improving the equipment's operating efficiency and safety, reducing operation and maintenance costs, and enhancing the equipment's market competitiveness.

[0051] The specific working process and principle of an embodiment of the present invention are now described in detail as follows:

[0052] The diameter of the ventilation holes 21 on the baffle 20 is 1 cm. The two baffles 20 in at least two water-blocking and air-guiding groups are spaced apart on both sides of the cabinet 10 in the horizontal direction. The opening positions of the multiple ventilation holes 21 are mainly in the middle of the baffle 20 (see Figure 1 ), taking the rectangular box as an example, there are baffles 20 on both sides, and the ventilation holes 21 on the baffles 20 on both sides are designed to be open to provide good ventilation performance; the water retaining and air guiding structure 30 can adopt two designs, one of which is a "herringbone design", that is, Figures 2 to 4 In the first embodiment shown, the first end 311 is connected to the lower part of the ventilation hole 21 above the corresponding ventilation hole 21, and the third end 321 is connected to the lower part of the corresponding ventilation hole 21. In actual experiments, it was found that the upper arc 31 of the herringbone design is mainly used to block water from entering from the top, middle and side; the other is a "handshake type design". Figures 5 to 7 In the second embodiment shown, the first end 311 is connected to the upper part of the corresponding ventilation hole 21, and the third end 321 is connected to the lower part of the corresponding ventilation hole 21. In actual experiments, it was found that the upper arc body 31 of the handshake-shaped design is mainly used to block water from entering from the bottom and the middle side, and the lower arc body 32 is mainly used to block water from entering from the top and the middle.

[0053] like Figures 2 to 4 As shown, in the first embodiment of the present invention, Figure 2Point G1 in the figure is the lower part of the uppermost ventilation hole 21, and is also the position of the first end 311 of the uppermost upper arc body 31 in the figure. Point C in the figure is the second end 312 of the upper arc body 31. Point A1 is the lower part of the second ventilation hole 21 from the top to the bottom in the figure, and is also the position of the third end 321 of the uppermost lower arc body 32 and the first end 311 of the second upper arc body 31. Point D2 is the position of the fourth end of the lower arc body 32. Point B1 and point C1 in the figure are respectively the upper and lower parts of the third ventilation hole 21 from the top to the bottom. Point E1 is the position of the second end 312 of the second upper arc body 31. Point A2 in the figure is the position of the fourth end of the second lower arc body 32. Point D1 in the figure is the upper part of the fourth ventilation hole 21 from the top to the bottom. Figure 2 As shown, the diameter of the vertical section of the ventilation hole 21 is R, where R is the distance from point B1 to point C1. The first arc 34 (i.e., the upper arc 31) here is a 1 / 4 arc with point B1 as the center, and the second arc 35 (i.e., the lower arc 32) is a 1 / 4 arc with point A1 as the center; the upper arc 31 and the lower arc 32 at other positions are the same.

[0054] In the first embodiment of the present invention, Figure 3 As shown, the upper and lower parts of the plurality of ventilation holes 21 are marked in sequence from top to bottom to obtain points G1, F1, A1, B1, C1, D1, H1, etc., point E1 is the position of the second end 312 of the upper arc body 31, point A is the position of the fourth end of the lower arc body 32, point B is the horizontal projection point of point C1 on the vertical axis, and point C is the symmetrical point of point A relative to line segment A1B1. Figure 3 The dotted circles on the center of the multiple circles show the size and relative position relationship between the ventilation hole 21, the upper arc body 31 and the lower arc body 32; First, verify the waterproof properties of the embodiment 1 at one ventilation hole 21 (see Figure 3 and Figure 4 ), taking the ventilation hole 21 at point B1 to point C1 as an example, the possibility of rainwater entering within a 180° range from the upper and lower points of the ventilation hole 21 is analyzed; the first step is to analyze the position of point B1, the lower arc 32 at point C1 and the upper arc 31 at point A1 can block water splashing from any direction at point B1 on the upper edge of the opening; the second step is to analyze the position of point C1, the upper arc 31 at point A1 and the lower arc 32 at point C1 can block water splashing from any direction at point C1 on the lower edge of the opening; the curvature design of the upper arc 31 and the lower arc 32 can ensure that the water splashing or splashing in flows out naturally; secondly, the ventilation performance of Example 1 is verified, see Figure 2 , the airflow enters from the left side, and rises along the lower arc body 32 at point C1. After encountering the lower edge of the lower arc body 32 at point A1, part of the airflow continues to rise, and part of the airflow turns to horizontal circulation. Figure 2The baffle 20 and the water-blocking and air-guiding structure 30 arranged on the right side receive the parallel and downward airflow and then horizontally flow out. Figure 4 As shown in the figure, the windward ratio is calculated, Figure 4 The B1 point is the upper part of the vent hole 21, the C1 point is the lower part of the vent hole 21, the E1 point is the second end 312 of the upper arc body 31, the E point is the intersection of the vertical line and the lower arc body 32, and the D point is the horizontal projection point of the C1 point on the vertical line, as shown in the figure. Figure 4 It can be seen that the airflow port 33 is located between the E1 point and the E point, the windward ratio is calculated as the line segment E1E / line segment E1D, and the calculated windward ratio is about 66%; for the convenience of processing and forming of various structures, the diameter of the vertical section of the vent hole 21 is R, R is the distance from the B1 point to the C1 point, the radius of the first circular arc 34 of the water-blocking and air-guiding structure 30 corresponding to the vent hole 21 is R, the radius of the second circular arc 35 is 2R, and the thickness of the baffle 20 along the horizontal direction is 2R.

[0055] As shown in the figure, Figures 5 to 7 In the second embodiment of the present application, as shown in the figure, Figure 5 The upper part and the lower part of each vent hole 21 are sequentially labeled from top to bottom, and the G, F, A, B, C, D, and E points are obtained, and the E point is the position of the fourth end 322 of the lower arc body 32; the diameter of the vertical section of the vent hole 21 is R, R is the distance from the B point to the C point, the third circular arc 36 is an eighth circular arc, the fourth circular arc 37 is a quarter circular arc with the B point as the center, and the upper arc body 31 and the lower arc body 32 at other positions are the same.

[0056] In the second embodiment of the present application, as shown in the figure, Figure 6 The upper part and the lower part of each vent hole 21 are sequentially labeled from top to bottom, and the G, F, A, B, C, D, and E points are obtained, and the E point is the position of the fourth end 322 of the lower arc body 32; first, the waterproof performance of the second embodiment at the vent hole 21 is verified (see Figure 6 ), and the vent holes 21 at the B point and the C point are taken as examples to analyze the possibility of rainwater entering from the two vertex positions 180° around the B point and the C point; in the first step, the B point position is analyzed, and the upper arc body 31 and the lower arc body 32 can block water splashes in any direction entering from the B point along the upper part of the opening; in the second step, the C point position is analyzed, and the lower arc body 32 and the upper arc body 31 can block water splashes in any direction splashing into the C point along the lower part of the opening; the curvature design of the upper arc body 31 and the lower arc body 32 can ensure that the splashed water naturally flows out; secondly, the ventilation performance is verified, as shown in the figure, Figure 5 From the left side, the airflow rises along the lower arc body 32 from the C point to the E point, a part of the airflow continues to rise after encountering the lower part of the arc of the lower arc body 32 above the lower arc body 32 (i.e., the lower arc body 32 at the A point position), and a part of the airflow turns to horizontal flow, Figure 5The baffle 20 and the water-blocking and air-guiding structure 30 correspondingly arranged on the right side receive the parallel and downward airflow and then flow out horizontally; Figure 7 As shown, calculate the windward ratio, Figure 7 Point B is the upper part of the ventilation hole 21, point C is the lower part of the ventilation hole 21, point J is the second end 312 of the upper arc body 31, point F is the intersection of the vertical line and the lower arc body 32, point G is the horizontal projection point of point C on the vertical line, point K is the horizontal projection point of point J on the vertical line, point H is the intersection point of the arc extension line of the upper arc body 31 and the lower arc body 32, and point I is the horizontal projection point of point H on the vertical line; Figure 7 It can be seen that the position of the air flow outlet 33 is between point J and point H; the calculated windward ratio = line segment KI / line segment FD, and the calculated windward ratio is about 25%; in order to facilitate the processing and forming of each structure, the diameter of the vertical section of the ventilation hole 21 is R, R is the distance from point B to point C, the radius of the third arc 36 of the water-retaining and air-guiding structure 30 corresponding to the ventilation hole 21 is R, the radius of the fourth arc 37 is also R, and the thickness of the baffle 20 in the horizontal direction is R.

[0057] Through the test results, by comparing Example 1 and Example 2, it is found that the waterproof capabilities of the two are basically equivalent, and both can achieve nearly 100% protection against rain and water splashes. The windward surface of the baffle 20 of the "herringbone design" in Example 1 is large, and the actual test calculation shows that the windward ratio is about 66%, and the ventilation efficiency is high, but the baffle 20 generally needs to be designed to be thicker; the baffle 20 of the "handshake type design" in Example 2 is relatively thinner, but the windward surface is smaller. The actual test calculation shows that the windward ratio is about 25%, and the ventilation efficiency is not as good as Example 1. Therefore, the above-mentioned parallel technical solutions can be flexibly selected according to actual use requirements.

[0058] The outdoor electrical heat dissipation cabinet proposed in the present invention has a cabinet body 10 that is small in size, beautiful, ventilated, practical, and safe while fully meeting the requirements of power supply and battery installation space and functions. The external dimensions of the cabinet body 10 are 800 cm in length, 640 cm in width, and 1450 cm in height. A plurality of ventilation holes 21 with a diameter of 1 cm are provided around the cabinet body 10. The number of side ventilation holes is: 20 holes / row × 15 rows = 300 holes; the number of front ventilation holes is: 20 holes / row × 30 rows = 600 holes.

[0059] The present invention solves the safety issues of outdoor electrical equipment that urgently needs power supply (including battery backup) when installed outdoors through the design of a simple water-blocking and air-guiding structure 30, and meets the ventilation, heat dissipation, waterproof and rainproof requirements of a large number of intelligent monitoring equipment (such as cameras, sensors, industrial gateways, etc.), edge computing products, outdoor power supplies and backup power products installed outdoors.

[0060] In summary, the present invention provides an outdoor electrical heat dissipation cabinet and outdoor electrical equipment. The present invention provides a water-blocking and air-guiding structure 30 including an upper arc body 31 and a lower arc body 32, so that the gas-liquid mixture flowing in from the ventilation hole 21 can contact the upper arc body 31 and the lower arc body 32 respectively, and then the liquid in the gas-liquid mixture is deposited on the lower arc body 32 and the upper arc body 31 to achieve gas-liquid separation, and the gas in the gas-liquid mixture can flow from the air flow port 33 into the accommodating cavity 11, thereby achieving ventilation and heat dissipation of the accommodating cavity 11; by setting the projection of the second end 312 to be located within the projection of the lower arc body 32, and the fourth end 322 to be higher than the second end 312, the liquid separated from the upper arc body 31 can be discharged from the upper arc body 31. It can fall onto the lower arc 32 and then be discharged from the accommodating cavity 11. The present invention adopts a curved structure. When used in practice, on the one hand, it can ensure that rainwater does not enter the accommodating cavity 11, and can be deposited on the lower arc 32 and quickly flow out. On the other hand, the curved structure design can reduce the secondary ejection of rainwater and avoid rainwater splashing. The internal curvature of the upper arc 31 and the lower arc 32 are designed to achieve efficient waterproofing and efficient ventilation. The outdoor electrical heat dissipation cabinet proposed by the present invention solves the problem that the outdoor electrical heat dissipation cabinet in the prior art cannot achieve a good balance between waterproofing and ventilation and heat dissipation effects. Compared with the traditional louver-type waterproof ventilation structure, the present invention significantly improves the waterproof performance and ventilation efficiency. Through the design of the upper arc 31 and the lower arc 32, not only waterproofing and splashing prevention are achieved, but also the direct windward area is greatly reduced, the thickness of the box is reduced, and the installation flexibility and safety of outdoor equipment are improved. At the same time, the present invention has a simple structure and low cost, is easy to apply on a large scale, and is particularly suitable for the installation of outdoor equipment such as visual connection, smart connection, and energy business. It greatly improves the stability and reliability of the product under adverse weather conditions, reduces maintenance costs, and enhances market competitiveness.

[0061] The technical features of the above embodiments can be combined in any manner. To simplify the description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction between the combinations of these technical features, they should be considered to be within the scope of this specification.

[0062] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0063] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments can have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0064] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0065] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0066] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0067] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. An outdoor electrical heat dissipation cabinet, characterized in that: include: A cabinet (10), a baffle (20) and a water-blocking and air-guiding structure (30); the baffle (20) is arranged on the cabinet (10) and forms a receiving cavity (11) with the cabinet (10), the receiving cavity (11) being used to receive electrical equipment; the baffle (20) has ventilation holes (21) for ventilation, the ventilation holes (21) being communicated with the outside of the cabinet (10) and the receiving cavity (11) respectively; the water-blocking and air-guiding structure (30) is arranged at the ventilation holes (21), and Located in the accommodating cavity (11); the water-blocking and air-guiding structure (30) comprises an upper arc body (31) and a lower arc body (32); the upper arc body (31) has an arc and extends downward; the lower arc body (32) has an arc and extends upward; the arc-shaped ends of the upper arc body (31) are respectively a first end (311) and a second end (312); the first end (311) is connected to the surface of the baffle (20) facing the accommodating cavity (11); the arc-shaped ends of the lower arc body (32) are respectively The third end (321) and the fourth end (322) are connected to the surface of the baffle (20) facing the accommodating cavity (11); an air flow opening (33) is provided between the second end (312) and the lower arc body (32); the air flow opening (33) is connected to the accommodating cavity (11) and the ventilation hole (21) respectively; the second end (312) and the lower arc body (32) are projected vertically downward to the same horizontal plane, and the projection of the second end (312) is Located within the projection of the lower arc body (32); the fourth end (322) is higher than the second end (312); wherein the gas-liquid mixture flowing in from the ventilation hole (21) contacts the upper arc body (31) and the lower arc body (32) respectively, the liquid in the gas-liquid mixture is deposited on the lower arc body (32) and the upper arc body (31), and the gas in the gas-liquid mixture flows into the accommodating cavity (11) from the air flow port (33) to ventilate and dissipate heat for the accommodating cavity (11).

2. The outdoor electrical heat dissipation cabinet according to claim 1, characterized in that: There are a plurality of ventilation holes (21), and the plurality of ventilation holes (21) are arranged in columns along the vertical direction and in rows along the horizontal direction to form a ventilation matrix (22); there are a plurality of water-retaining and air-guiding structures (30), and the plurality of water-retaining and air-guiding structures (30) are arranged in a one-to-one correspondence with the plurality of ventilation holes (21); or, each of the water-retaining and air-guiding structures (30) cooperates with the plurality of ventilation holes (21) located in the same row at the same time, so that the plurality of ventilation holes (21) located in the same row are simultaneously connected to the air flow outlet (33) of the corresponding water-retaining and air-guiding structure (30).

3. The outdoor electrical heat dissipation cabinet according to claim 2, characterized in that: The plurality of water-blocking and air-guiding structures (30) corresponding to the plurality of ventilation holes (21) located in the same row are arranged in parallel and spaced apart, and the gas flowing in from the air flow opening (33) of one of the water-blocking and air-guiding structures (30) contacts the lower part of the lower arc (32) of the water-blocking and air-guiding structure (30) above the water-blocking and air-guiding structure (30), so that the gas flows in a reverse direction.

4. The outdoor electrical heat dissipation cabinet according to claim 1, characterized in that: The ventilation hole (21) is a circular hole, and the upper arc body (31) and the lower arc body (32) are circular arc bodies respectively; wherein, a plane extending vertically and containing the central axis of the ventilation hole (21) is a first cross section, and the plurality of ventilation holes (21) and the corresponding plurality of water-blocking and air-guiding structures (30) located in the same column are intercepted by the first cross section, the first end (311) is connected to the lower part of the ventilation hole (21) above the corresponding ventilation hole (21), and the third end (321) is connected to the lower part of the corresponding ventilation hole (21); or, the first end (311) is connected to the upper part of the corresponding ventilation hole (21), and the third end (321) is connected to the lower part of the corresponding ventilation hole (21).

5. The outdoor electrical heat dissipation cabinet according to claim 4, characterized in that: Under the condition that the first end (311) is connected to the lower part of the ventilation hole (21) above the corresponding ventilation hole (21), and the third end (321) is connected to the lower part of the corresponding ventilation hole (21), the cross-sectional shape of the upper arc body (31) is a quarter arc, and the quarter arc is a first arc (34), and the cross-sectional shape of the lower arc body (32) is a quarter arc, and the quarter arc is a second arc (35); wherein the radius of the first arc (34) is smaller than the radius of the second arc (35); the first arc (34) of one of the water-blocking and air-guiding structures (30) is connected to the second arc (35) above the water-blocking and air-guiding structure (30), and the second arc (35) of one of the water-blocking and air-guiding structures (30) is connected to the first arc (34) below the water-blocking and air-guiding structure (30).

6. The outdoor electrical heat dissipation cabinet according to claim 5, characterized in that: The center of the first circular arc (34) of one of the water-retaining and air-guiding structures (30) is located at the upper part of the corresponding ventilation hole (21), and the center of the second circular arc (35) of the water-retaining and air-guiding structure (30) is located at the lower part of the ventilation hole (21) above the ventilation hole (21); the vertical spacing distance between two adjacent ventilation holes (21) in the plurality of ventilation holes (21) located in the same row is R; the diameter of the vertical cross-section of the ventilation hole (21) is R, the radius of the first circular arc (34) of the water-retaining and air-guiding structure (30) corresponding to the ventilation hole (21) is R, the radius of the second circular arc (35) is 2R, and the thickness of the baffle (20) in the horizontal direction is not less than R and not greater than 2R.

7. The outdoor electrical heat dissipation cabinet according to claim 4, characterized in that: Under the condition that the first end (311) is connected to the upper part of the corresponding ventilation hole (21), and the third end (321) is connected to the lower part of the corresponding ventilation hole (21), the cross-sectional shape of the upper arc body (31) is a one-eighth arc, and the one-eighth arc is the third arc (36), and the cross-sectional shape of the lower arc body (32) is a one-quarter arc, and the one-quarter arc is the fourth arc (37); wherein the radius of the third arc (36) is smaller than the radius of the fourth arc (37); the third arc (36) of one water-blocking and air-guiding structure (30) is spaced apart from the fourth arc (37) above the water-blocking and air-guiding structure (30), and the fourth arc (37) of one water-blocking and air-guiding structure (30) is spaced apart from the third arc (36) below the water-blocking and air-guiding structure (30).

8. The outdoor electrical heat dissipation cabinet according to claim 7, characterized in that: The center of the third circular arc (36) of the water-retaining and air-guiding structure (30) is located at the lower part of the corresponding ventilation hole (21), and the center of the fourth circular arc (37) of the water-retaining and air-guiding structure (30) is located at the upper part of the ventilation hole (21); the diameter of the vertical cross-section of the ventilation hole (21) is R, the radius of the third circular arc (36) of the water-retaining and air-guiding structure (30) corresponding to the ventilation hole (21) is R, the radius of the fourth circular arc (37) is R, and the thickness of the baffle (20) in the horizontal direction is not less than R and not greater than 2R.

9. The outdoor electrical heat dissipation cabinet according to claim 2, characterized in that: Under the condition that the plurality of water-blocking and air-guiding structures (30) are arranged in one-to-one correspondence with the plurality of ventilation holes (21), the upper arc body (31) and the lower arc body (32) are both spherical shell structures; under the condition that each of the water-blocking and air-guiding structures (30) is simultaneously matched with the plurality of ventilation holes (21) located in the same row, the upper arc body (31) and the lower arc body (32) are both cylindrical shell structures; And / or, the ventilation matrix (22) is located in the middle of the baffle (20) and is arranged around the centroid of the baffle (20); the diameter of the vertical cross section of the ventilation hole (21) is R, and R is less than or equal to 2 cm; And / or, a baffle (20) and the water-blocking and air-guiding structure (30) correspondingly arranged on the baffle (20) form a water-blocking and air-guiding group, and there are at least two water-blocking and air-guiding groups, and two of the baffles (20) in at least two of the water-blocking and air-guiding groups are spaced apart and arranged on both sides of the cabinet (10) in a horizontal direction, so that the water-blocking and air-guiding group located on one side takes in air, and the water-blocking and air-guiding group located on the other side discharges air.

10. An outdoor electrical device, characterized in that: The outdoor electrical equipment comprises the outdoor electrical heat dissipation cabinet according to any one of claims 1 to 9, and the outdoor electrical equipment further comprises a battery pack, a wireless communicator, an alarm, a smoke sensor and a controller respectively arranged in the accommodating cavity (11); the battery pack is respectively connected to the wireless communicator, the alarm, the smoke sensor and the controller to provide electrical energy; the controller is respectively electrically connected to the wireless communicator, the alarm and the smoke sensor; wherein the wireless communicator is used to transmit signals, the alarm is used to sound and flash alarms, and the smoke sensor is used to monitor the smoke concentration in the accommodating cavity (11) and feed back to the controller through electrical signals.

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