Cabinet top cover and outdoor cabinet

Abstract

The present invention relates to the technical field of outdoor cabinets. Disclosed are a cabinet top cover and an outdoor cabinet. The cabinet top cover comprises a top plate, side plates, a bottom plate, and shielding plates. The side plates are connected to the top plate and are arranged in the circumferential direction of the top plate; the side plates and the top plate define a heat dissipation cavity; first protection members are arranged on the side plates; the first protection members protrude outwards; first ventilation holes are formed in the bottoms of the first protection members; the bottom plate is connected to the side plates, and water passing holes are formed in the bottom plate; the shielding plates are arranged between the top plate and the bottom plate; second protection members are arranged on the shielding plates; the second protection members protrude inwards; second ventilation holes are formed in the bottoms of the second protection members; and the heat dissipation cavity is communicated with the outside by means of the first ventilation holes, the second ventilation holes, and the water passing holes. The outdoor cabinet comprises the cabinet top cover. By means of the arrangement, the cabinet top cover of the present application has good heat dissipation performance, and also has an excellent protection effect.

Description

Cabinet top cover and outdoor cabinet Technical Field

[0001] The present invention relates to the technical field of outdoor cabinets, and in particular to a cabinet top cover and an outdoor cabinet. Background Art

[0002] An outdoor cabinet is a cabinet that is directly exposed to the influence of natural climate, made of metal or non-metallic materials, and does not allow unauthorized operators to enter and operate. It provides an outdoor physical working environment and safety system for wireless communication sites or wired network site workstations.

[0003] To ensure the normal operation and function of electrical equipment outdoors, outdoor cabinets must provide a similar operating environment to that of indoor environments. For example, railway signal cabinets are typically installed outdoors alongside tracks, subject to multiple factors, including temperature, humidity, sunlight, rain, earthquakes, track vibration, and electromagnetic interference. Therefore, compared to ordinary electronic cabinets, outdoor cabinets must have higher water and dust resistance and heat dissipation performance.

[0004] Existing outdoor cabinets fail to balance ventilation, heat dissipation, and protection. Furthermore, rainwater and dust can enter through the top cover of the outdoor cabinet, affecting the normal operation of electrical equipment. Furthermore, outdoor cabinets lack lifting rings, or those that do require removal, making it difficult for operators to hoist the cabinets. After long-term use, the top cover of outdoor cabinets can rust or accumulate foreign matter, making disassembly and maintenance difficult. Furthermore, the cabinets' design is generic and lacks aesthetic appeal.

[0005] Summary of the Invention

[0006] The object of the present invention is to provide a cabinet top cover having both good heat dissipation performance and excellent protection effect.

[0007] To achieve this object, the present invention adopts the following technical solutions:

[0008] A cabinet top cover, comprising:

[0009] roof;

[0010] a side plate connected to the top plate and arranged along the circumference of the top plate, the side plate and the top plate forming a heat dissipation cavity, a first protective member being provided on the side plate, the first protective member being protruding outward, and a first ventilation hole being provided at the bottom of the first protective member;

[0011] A bottom plate connected to the side plates and provided with water holes;

[0012] A baffle is arranged between the top plate and the bottom plate and located in the heat dissipation cavity. A second protective member is provided on the baffle, the second protective member protrudes inward, and a second ventilation hole is provided at the bottom of the second protective member. The heat dissipation cavity is connected to the outside through the first ventilation hole, the second ventilation hole and the water hole.

[0013] Optionally, the bottom plate includes a water guide plate and a connecting plate, the water guide plate is connected to the side plate and the connecting plate and is arranged at an angle, the top plate and the connecting plate are parallel to each other and arranged at intervals, and the water hole is arranged on the connecting plate.

[0014] Optionally, there are multiple water holes, and the multiple water holes are spaced apart along the circumference of the bottom plate.

[0015] Optionally, the shielding plate is arranged between two adjacent water holes and forms a water cavity between the shielding plate and the adjacent side plates. The water cavity is connected to the outside through the first ventilation hole and the water hole, and the second ventilation hole is arranged toward the water hole.

[0016] Optionally, the first protective member includes a first curved plate and a first side sealing plate, one end of the first curved plate is connected to the side plate, and the other end extends outward to form the first ventilation hole with the side plate, and the first side sealing plate is arranged at both ends of the first curved plate and connected to the first curved plate and the side plate.

[0017] Optionally, the second protective member includes a second curved plate and a second side sealing plate, one end of the second curved plate is connected to the shielding plate, and the other end extends into the heat dissipation cavity to form the second ventilation hole with the shielding plate, and the second side sealing plate is arranged at both ends of the second curved plate and connected to the second curved plate and the shielding plate.

[0018] Optionally, the cabinet top cover further includes a mounting plate, which is connected to the bottom plate and is configured to be detachably connected to the cabinet.

[0019] Optionally, a mounting opening is provided on the bottom plate, and the heat dissipation cavity is connected to the outside through the mounting opening.

[0020] Optionally, the cabinet top cover further includes a sealing strip, and the sealing strip is arranged along the circumference of the installation opening.

[0021] Another object of the present invention is to provide an outdoor cabinet that can ensure ventilation and heat dissipation while having good protection effects, is easy to hoist, and has an attractive appearance.

[0022] To achieve this object, the present invention adopts the following technical solutions:

[0023] An outdoor cabinet comprises a cabinet body, a hanging ring and the cabinet top cover as described above, wherein the cabinet top cover is detachably connected to the cabinet body, and the hanging ring is detachably connected to the cabinet body and is located in the heat dissipation cavity. Beneficial effects:

[0024] The present invention provides a cabinet top cover, which includes a top plate, side plates, a bottom plate, and a shielding plate. The side plates are connected to the top plate and are arranged along the circumference of the top plate so that rainwater on the top plate can flow down through the circumferentially arranged side plates, thereby preventing rainwater from eroding the top plate. The side plates and the top plate are arranged to form a heat dissipation cavity, which is used to dissipate heat from electrical equipment inside the cabinet. A first protective member is provided on the side plate, which is protruding outward so that rainwater can flow to the outside along the outer surface of the first protective member, thereby reducing the possibility of rainwater entering the cabinet through the side plates, and also preventing external dust from entering the heat dissipation cavity. In order to ensure the heat dissipation and dustproof effect of the heat dissipation cavity, a first ventilation hole is provided at the bottom of the first protective member, and a second ventilation hole is provided at the bottom of the second protective member. Since rainwater and dust may enter the heat dissipation cavity through the first ventilation hole and the second ventilation hole, the bottom plate is connected to the side plate and is provided with a water hole so that rainwater can be discharged through the water hole to prevent rainwater from damaging the electrical equipment. The shielding plate is arranged between the top plate and the bottom plate and is located in the heat dissipation cavity. By setting up the shielding plate, rainwater and dust entering the heat dissipation cavity can be blocked for a second time. Since the shielding plate is provided with a second protective member and the second protective member is convex inward, the rainwater is guided, so that even rainwater entering the heat dissipation cavity can be quickly discharged to the outside through the water hole. The heat dissipation cavity is connected to the outside through the first ventilation hole, the second ventilation hole and the water hole, so that the heat dissipation cavity can always be ventilated to the outside. By setting the first protective member and the second protective member back to back, it can not only ensure good heat dissipation, but also have an excellent protective effect, avoiding the influence of rainwater and dust on the electrical equipment in the cabinet. Through the above-mentioned arrangement, the cabinet top cover of the present application has both good heat dissipation performance and excellent protective effect.

[0025] The present invention also provides an outdoor cabinet, which includes a cabinet body, a lifting ring and the above-mentioned cabinet top cover, and the cabinet top cover is detachably connected to the cabinet body to facilitate installation and removal by the user and subsequent maintenance. The lifting ring is threadedly connected to the cabinet body, so that the user can install and remove the lifting ring according to the lifting requirements of the outdoor cabinet, thereby facilitating the lifting operation. The lifting ring is located in the heat dissipation cavity, so that the lifting ring does not need to be exposed outside the cabinet, ensuring the overall aesthetics of the outdoor cabinet. Through the above-mentioned arrangement, the outdoor cabinet of the present application can ensure ventilation and heat dissipation while having a good protective effect, avoiding the influence of rain and dust on the electrical equipment inside the outdoor cabinet, and is easy to lift and has a beautiful appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] FIG1 is a schematic diagram of a cabinet top cover according to an embodiment of the present invention;

[0027] FIG2 is a second schematic diagram of a cabinet top cover provided in an embodiment of the present invention;

[0028] FIG3 is a schematic diagram of an outdoor cabinet provided by an embodiment of the present invention;

[0029] FIG4 is a cross-sectional view of an outdoor cabinet provided by an embodiment of the present invention;

[0030] FIG5 is a partial enlarged view of point A in FIG1 ;

[0031] FIG6 is a partial enlarged view of point B in FIG2;

[0032] FIG7 is a partial enlarged view of point C in FIG4 .

[0033] In the picture:

[0034] 1. Top plate; 11. Heat dissipation cavity;

[0035] 2. Side plate; 21. First protective member; 211. First curved plate; 212. First side sealing plate; 22. First ventilation hole; 23. Water passage cavity;

[0036] 3. Bottom plate; 31. Water hole; 32. Water guide plate; 33. Connecting plate; 34. Mounting port;

[0037] 4. Shielding plate; 41. Second protective member; 411. Second curved plate; 412. Second side sealing plate; 42. Second ventilation hole;

[0038] 5. Mounting plate; 6. Sealing strip;

[0039] 100. Cabinet body; 200. Lifting ring. DETAILED DESCRIPTION

[0040] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0041] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0042] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0043] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meanings.

[0044] As shown in Figures 1 to 7, this embodiment provides a cabinet top cover, which includes a top panel 1, side panels 2, a bottom panel 3, and a shielding plate 4. The side panels 2 are connected to the top panel 1 and are arranged along the circumference of the top panel 1. The side panels 2 and the top panel 1 enclose a heat dissipation cavity 11. The side panels 2 are provided with a first protective member 21, which protrudes outward and has a first ventilation hole 22 at the bottom of the first protective member 21. The bottom panel 3 is connected to the side panels 2 and has a water flow hole 31. The shielding plate 4 is arranged between the top panel 1 and the bottom panel 3 and is located in the heat dissipation cavity 11. The shielding plate 4 is provided with a second protective member 41, which protrudes inward and has a second ventilation hole 42 at the bottom of the second protective member 41. The heat dissipation cavity 11 is connected to the outside through the first ventilation hole 22, the second ventilation hole 42, and the water flow hole 31.

[0045] In this embodiment, the side panels 2 are connected to the top panel 1 and arranged circumferentially around the top panel 1, allowing rainwater on the top panel 1 to flow down through the circumferentially arranged side panels 2, preventing rainwater from eroding the top panel 1. The side panels 2 and top panel 1 enclose a heat dissipation cavity 11, which is used to dissipate heat from the electrical equipment within the cabinet. A first protective member 21 is provided on the side panel 2. This outwardly protrudes, allowing rainwater to flow outward along the outer surface of the first protective member 21, reducing the possibility of rainwater entering the cabinet through the side panels 2. It also prevents external dust from entering the heat dissipation cavity 11. In order to ensure the heat dissipation and dustproof effect of the heat dissipation cavity 11, a first ventilation hole 22 is opened at the bottom of the first protective member 21, and a second ventilation hole 42 is opened at the bottom of the second protective member 41. Since rainwater and dust may enter the heat dissipation cavity 11 through the first ventilation hole 22 and the second ventilation hole 42, the bottom plate 3 is connected to the side plate 2 and is provided with a water hole 31, so that rainwater can be discharged through the water hole 31 to prevent rainwater from damaging electrical equipment. The shielding plate 4 is arranged between the top plate 1 and the bottom plate 3 and is located in the heat dissipation cavity 11. By providing the shielding plate 4, rainwater and dust entering the heat dissipation cavity 11 can be blocked for a second time. Since the shielding plate 4 is provided with a second protective member 41, and the second protective member 41 is protruding inward, it guides rainwater, so that even rainwater that enters the heat dissipation cavity 11 can be quickly discharged to the outside through the water hole 31. The heat dissipation cavity 11 is connected to the outside through the first ventilation hole 22, the second ventilation hole 42, and the water hole 31, so that the heat dissipation cavity 11 can always be ventilated to the outside. The first protective member 21 and the second protective member 41 are arranged in opposite directions, which not only ensures good heat dissipation but also provides excellent protection against the influence of rain and dust on the electrical equipment in the cabinet. Through this arrangement, the cabinet top cover of this embodiment has both good heat dissipation performance and excellent protection.

[0046] Specifically, as shown in Figures 1-7, the bottom plate 3 includes a water guide plate 32 and a connecting plate 33. The water guide plate 32 is connected to the side plates 2 and the connecting plate 33 and is tilted so that rainwater on the side plates 2 can be smoothly collected on the connecting plate 33 through the tilted water guide plate 32, thereby facilitating drainage. The top plate 1 and the connecting plate 33 are parallel to each other and spaced apart to ensure that the heat dissipation cavity 11 has sufficient space for ventilation and heat dissipation with the outside world. A water hole 31 is provided on the connecting plate 33 so that rainwater collected on the connecting plate 33 can be promptly discharged to the outside through the water hole 31, preventing the rainwater from affecting the electrical equipment.

[0047] Specifically, as shown in Figures 1-6 , multiple water holes 31 are provided to more evenly distribute the flow of liquid, reducing the possibility of uneven flow or flow blockage. Multiple water holes 31 are spaced apart along the circumference of the bottom plate 3 to ensure that each water hole 31 effectively processes the liquid flowing through it, thereby improving drainage efficiency.

[0048] More specifically, as shown in Figures 1-7, the shielding plate 4 is disposed between two adjacent water holes 31 and forms a water cavity 23 with the adjacent side panel 2, thereby temporarily storing rainwater entering the heat dissipation cavity 11 to prevent it from affecting the electrical equipment inside the cabinet. The water cavity 23 is connected to the outside through the first ventilation hole 22 and the water hole 31, ensuring both good heat dissipation and excellent waterproofing. As shown in Figure 7, the second ventilation hole 42 is disposed toward the water hole 31, so that rainwater entering the heat dissipation cavity 11 through the second ventilation hole 42 can fall onto the water hole 31 under the action of its own weight and be discharged to the outside of the cabinet in a timely manner.

[0049] Specifically, as shown in Figures 1 to 7, the first protective member 21 includes a first curved plate 211 and a first side sealing plate 212. One end of the first curved plate 211 is connected to the side plate 2, and the other end extends outward to form a first ventilation hole 22 with the side plate 2. This arrangement can effectively guide the flow of rainwater, so that rainwater falling on the first curved plate 211 can fall to the outside along the curved surface, and rainwater entering the heat dissipation cavity 11 will also flow to the inside of the side plate 2 due to the presence of the first ventilation hole 22, and can achieve maximum dust protection. At the same time, the provision of the first ventilation hole 22 can increase air circulation and help dissipate heat. The first side sealing plate 212 is provided at both ends of the first curved plate 211 and is connected to the first curved plate 211 and the side plate 2. This arrangement can effectively prevent external rainwater and dust from entering the cabinet, thereby protecting internal components from damage and extending the service life of related equipment.

[0050] Specifically, as shown in Figures 1 to 7, the second protective member 41 includes a second curved plate 411 and a second side sealing plate 412. One end of the second curved plate 411 is connected to the baffle plate 4, and the other end extends into the heat dissipation cavity 11, forming a second ventilation hole 42 with the baffle plate 4. This arrangement can effectively guide the flow of rainwater, so that rainwater falling on the second curved plate 411 can fall to the outside along the curved surface, and rainwater entering the water flow cavity 23 will also flow to the side of the baffle plate 4 away from the side plate 2 due to the presence of the second ventilation hole 42, and can achieve maximum dust protection. At the same time, the provision of the second ventilation hole 42 can increase air circulation and help dissipate heat. The second side sealing plate 412 is provided at both ends of the second curved plate 411 and is connected to the second curved plate 411 and the baffle plate 4. Such an arrangement can effectively prevent external rainwater and dust from entering the cabinet, thereby protecting internal components from damage and extending the service life of related equipment.

[0051] Specifically, as shown in Figures 1-3, the cabinet top cover also includes a mounting plate 5, which is connected to the base plate 3 and is configured to be removably attached to the cabinet. This makes installation and removal of the cabinet top cover simple and quick, improving the maintainability and assembly efficiency of various components. Furthermore, the mounting plate 5 is provided with multiple mounting holes spaced along its length, allowing bolts to pass through the holes and be screwed to the cabinet, thus facilitating assembly and disassembly of various components for maintenance.

[0052] More specifically, in this embodiment, the mounting plate 5 is L-shaped, thereby increasing the connection area between the mounting plate 5 and the base plate 3 and improving the connection strength between the components. In other embodiments, the mounting plate 5 can be U-shaped, as long as the connection strength between the mounting plate 5 and the base plate 3 is improved, and no further limitation is given here.

[0053] Specifically, as shown in Figures 1-3, the bottom plate 3 is provided with an installation opening 34, which connects the heat dissipation cavity 11 to the outside. This facilitates cleaning of the interior of the heat dissipation cavity 11 and prevents clogging by foreign matter. Furthermore, this arrangement increases the space connecting the heat dissipation cavity 11 to the outside, facilitating heat dissipation. Furthermore, as shown in Figure 7, the end of the bottom plate 3 adjacent to the installation opening 34 is bent upward, forming an L-shape. This effectively blocks rainwater collected on the bottom plate 3 and prevents it from flowing out through the installation opening 34.

[0054] Specifically, as shown in Figures 1 to 3, the cabinet top cover also includes a sealing strip 6, which is arranged along the circumference of the installation opening 34. When the cabinet top cover is installed on the cabinet, the sealing strip 6 is clamped in the gap between the bottom plate 3 and the cabinet, thereby ensuring that rainwater on the bottom plate 3 does not flow into the interior of the cabinet through the gap, further improving the overall waterproof effect of the cabinet. Through the coordinated cooperation of the first protective member 21, the second protective member 41, the water hole 31 and the sealing strip 6, the waterproof performance of the cabinet top cover during installation and use is improved. Moreover, dust cannot enter the interior of the cabinet to affect the normal use of electrical equipment, so that the cabinet top cover of this embodiment can achieve IP55 protection performance.

[0055] It should be noted that the cabinet top cover of this embodiment is made of 1.5 mm thick metal plates through bending and welding to ensure the strength of each component and increase the service life.

[0056] As shown in Figures 1 to 7, this embodiment also provides an outdoor cabinet, which includes a cabinet body 100, a hanging ring 200 and the cabinet top cover as above. The cabinet top cover is detachably connected to the cabinet body 100, and the hanging ring 200 is detachably connected to the cabinet body 100 and is located in the heat dissipation cavity 11.

[0057] In this embodiment, the cabinet top cover is detachably connected to the cabinet body 100, so as to facilitate installation and disassembly as well as subsequent maintenance by the user. The lifting ring 200 is detachably connected to the cabinet body 100, specifically by screw connection, clip connection, etc., so that the user can install and remove the lifting ring 200 according to the hoisting requirements of the outdoor cabinet, thereby facilitating the hoisting operation. The lifting ring 200 is located in the heat dissipation cavity 11, so that the lifting ring 200 does not need to be exposed outside the cabinet body 100, thereby ensuring the overall aesthetics of the outdoor cabinet. Through the above-mentioned arrangement, the outdoor cabinet of this embodiment can ensure ventilation and heat dissipation while having a good protective effect, avoiding the influence of rain and dust on the electrical equipment inside the outdoor cabinet, and is easy to hoist and has a beautiful appearance.

[0058] It should be noted that the outdoor cabinet of this embodiment, by using the above-mentioned cabinet top cover, can withstand water spray from all directions without damage, while also preventing dust from entering the interior of the equipment. Through the above-mentioned configuration, the outdoor cabinet can operate stably even in harsh environments, improving the reliability and service life of the equipment, that is, achieving IP55 protection performance. At the same time, by providing the first ventilation holes 22, the second ventilation holes 42, and the heat dissipation cavity 11, the outdoor cabinet of this embodiment has excellent wind heat dissipation performance. Moreover, the cabinet top cover is removably connected to the cabinet body 100 through the interaction of the mounting plate 5 and the bolts. This not only facilitates disassembly and maintenance of the dustproof cotton inside the cabinet body 100, but also provides certain safety features. The provision of a lifting ring 200 facilitates the hoisting of the outdoor cabinet. In addition, the cabinet top cover of this embodiment has chamfered corners at the ends and four corners, resulting in a unique and beautiful shape, which distinguishes it from most outdoor cabinet top covers on the market and makes it more popular.

[0059] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. The cabinet top cover is characterized by: include: Top plate (1); A side plate (2) is connected to the top plate (1) and is arranged along the circumference of the top plate (1). The side plate (2) and the top plate (1) are arranged to form a heat dissipation cavity (11). A first protective member (21) is provided on the side plate (2). The first protective member (21) is protruding outward, and a first ventilation hole (22) is provided at the bottom of the first protective member (21); A bottom plate (3) is connected to the side plate (2) and is provided with a water hole (31); A shielding plate (4) is provided between the top plate (1) and the bottom plate (3) and is located in the heat dissipation cavity (11). A second protective member (41) is provided on the shielding plate (4). The second protective member (41) is protruding inwardly. A second ventilation hole (42) is provided at the bottom of the second protective member (41). The heat dissipation cavity (11) is connected to the outside through the first ventilation hole (22), the second ventilation hole (42) and the water hole (31).

2. The cabinet top cover according to claim 1, characterized in that: The bottom plate (3) comprises a water guide plate (32) and a connecting plate (33); the water guide plate (32) is connected to the side plate (2) and the connecting plate (33) and is arranged at an angle; the top plate (1) and the connecting plate (33) are parallel to each other and spaced apart; the water hole (31) is arranged on the connecting plate (33).

3. The cabinet top cover according to claim 1, characterized in that: A plurality of water holes (31) are provided, and the plurality of water holes (31) are spaced apart along the circumference of the bottom plate (3).

4. The cabinet top cover according to claim 3, characterized in that: The shielding plate (4) is arranged between two adjacent water holes (31) and forms a water cavity (23) with the adjacent side plate (2); the water cavity (23) is connected to the outside through the first ventilation hole (22) and the water hole (31); and the second ventilation hole (42) is arranged toward the water hole (31).

5. The cabinet top cover according to claim 1, characterized in that: The first protective member (21) includes a first curved plate (211) and a first side sealing plate (212), one end of the first curved plate (211) is connected to the side plate (2), and the other end extends outward to form the first ventilation hole (22) with the side plate (2), and the first side sealing plate (212) is arranged at both ends of the first curved plate (211) and connected to the first curved plate (211) and the side plate (2).

6. The cabinet top cover according to claim 1, characterized in that: The second protective member (41) comprises a second curved plate (411) and a second side sealing plate (412); one end of the second curved plate (411) is connected to the shielding plate (4), and the other end extends into the heat dissipation cavity (11) to form the second ventilation hole (42) with the shielding plate (4); the second side sealing plate (412) is arranged at both ends of the second curved plate (411) and is connected to the second curved plate (411) and the shielding plate (4).

7. The cabinet top cover according to claim 1, characterized in that: The cabinet top cover also includes a mounting plate (5), which is connected to the bottom plate (3) and is configured to be detachably connected to the cabinet.

8. The cabinet top cover according to claim 1, characterized in that: The bottom plate (3) is provided with a mounting opening (34), and the heat dissipation cavity (11) is connected to the outside through the mounting opening (34).

9. The cabinet top cover according to claim 8, characterized in that: The cabinet top cover also includes a sealing strip (6), and the sealing strip (6) is arranged along the circumference of the installation opening (34).

10. Outdoor cabinet, characterized in that, The invention comprises a cabinet body (100), a lifting ring (200) and a cabinet top cover according to any one of claims 1 to 9, wherein the cabinet top cover is detachably connected to the cabinet body (100), and the lifting ring (200) is detachably connected to the cabinet body (100) and is located in the heat dissipation cavity (11).

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