Cabinet emergency ventilation device
By adopting a self-closing grille structure in the emergency ventilation device of the server rack, the problem of ineffective air duct control is solved, achieving isolation of hot and cold air and saving energy consumption, and preventing equipment overheating.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2026-03-13
AI Technical Summary
Existing emergency ventilation devices for server racks cannot effectively control the opening and closing of air ducts, resulting in a lack of isolation between hot and cold air, causing cold air loss and increased equipment size.
An emergency ventilation device for server racks was designed, which adopts a self-closing grille structure. When the fan is turned on, hot air drives the self-closing grille to rotate and open the air duct. When the fan is turned off, the self-closing grille automatically descends and closes the air duct, thus achieving hot and cold isolation.
It enables the effective exhaust of hot air when the cabinet air conditioner fails, preventing the mixing of hot and cold air, reducing energy waste, and avoiding an increase in equipment size.
Smart Images
Figure CN223993808U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical cabinet technology, specifically to an emergency ventilation device for cabinets. Background Technology
[0002] Currently, most of the equipment inside server racks on the market needs to operate in low-temperature environments, thus requiring all racks to be equipped with rack air conditioners. To cope with the failure of rack air conditioners while ensuring the normal operation of the equipment, emergency ventilation devices need to be added inside the rack. When the rack air conditioner fails, the emergency ventilation device is activated to expel heat from the rack and lower the internal temperature. However, some existing emergency ventilation devices cannot control the opening and closing of the air ducts, resulting in a lack of isolation between hot and cold air. During normal use, the cool air from the rack air conditioner will escape to the outside along the air ducts, causing serious waste. Other emergency ventilation devices isolate the hot and cold air inside and outside the rack by adding a drive device, but this will increase the size of the equipment. Utility Model Content
[0003] The purpose of this utility model is to provide an emergency ventilation device for server racks, which can effectively solve the technical problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] An emergency ventilation device for server racks includes a ventilation box and a fan. The ventilation box is disposed inside the server rack and located below the top cover of the server rack. The ventilation box has a ventilation cavity and a mounting base plate at the bottom. The mounting base plate has ventilation holes. The fan is mounted to the ventilation holes with screws. Multiple air ducts are distributed vertically on the side wall of the ventilation cavity. Self-closing grilles are disposed at the air ducts. The top of the self-closing grilles is rotatably mounted on both sides of the air ducts via a rotating shaft, and the tail extends beyond the rotating shaft on the adjacent self-closing grille below to prevent the self-closing grille from rotating toward the ventilation cavity.
[0006] Preferably, when the fan is turned on, the hot air inside the cabinet passes through the ventilation holes and the ventilation cavity in sequence, which drives the self-closing grille to rotate and open the air duct, allowing the hot air to be discharged. When the fan is turned off, the self-closing grille automatically descends and closes the air duct to prevent outside air from entering the cabinet, thus achieving thermal isolation.
[0007] Preferably, the top cover of the cabinet is provided with ventilation holes, and the hot air inside the cabinet passes through the air duct and is discharged through the ventilation holes.
[0008] Preferably, mounting plates are provided on both sides of the ventilation box, and the mounting plates are connected to the mounting bosses on the inner wall of the cabinet by fastening bolts.
[0009] Preferably, the mounting base plate has two ventilation holes, which are circular in shape.
[0010] Preferably, the self-closing grille is made of aluminum plate with a thickness of 0.5 mm.
[0011] Preferably, the ventilation box is manufactured by sheet metal processing.
[0012] Preferably, the plurality of air ducts are distributed in a linear array on the sidewall of the ventilation cavity.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] When the cabinet air conditioner malfunctions, the fan of this invention turns on and drives the self-closing grille to rotate outward after passing through the ventilation holes and ventilation cavity in sequence, thus opening the air duct. The hot air then passes through the air duct and is exhausted to the outside through the vents on the top cover of the cabinet. When the internal temperature of the cabinet drops or the cabinet air conditioner returns to normal operation, the fan turns off. Without the drive of hot air from inside the cabinet, the self-closing grille automatically descends and closes the air duct, preventing outside air from entering the cabinet and achieving thermal isolation. When installing the self-closing grille, the tail of the grille should extend beyond the rotation axis of the adjacent self-closing grille below to prevent the grille from rotating towards the ventilation cavity. This invention helps prevent the normal operation of the equipment inside the cabinet from being affected by excessively high internal temperatures. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model in the closed state of the self-closing grille;
[0016] Figure 2 This is a schematic diagram of the structure of this utility model in the open state of the self-closing grille;
[0017] Figure 3 This is a schematic diagram of the mounting base plate in an embodiment of this utility model;
[0018] Figure 4 This is a schematic diagram of the cabinet structure in an embodiment of this utility model;
[0019] In the diagram, 1. Ventilation box, 2. Fan, 3. Cabinet, 4. Mounting base plate, 5. Ventilation hole, 6. Screw, 7. Air duct, 8. Self-closing grille, 9. Rotating shaft, 10. Vent hole, 11. Mounting plate, 12. Top cover. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figure 1-4 As shown, an emergency ventilation device for a server rack includes a ventilation box 1 and a fan 2. The ventilation box 1 is disposed inside a server rack 3 and located below the top cover 12 of the server rack 3. The ventilation box 1 has a ventilation cavity and a mounting base plate 4 at the bottom. The mounting base plate 4 has ventilation holes 5. The fan 2 is mounted to the ventilation holes 5 by screws 6. Multiple air ducts 7 are distributed vertically on the side wall of the ventilation cavity. Self-closing grilles 8 are disposed at the air ducts 7. The top of the self-closing grilles 8 is rotatably mounted on both sides of the air ducts 7 by a rotating shaft 9, and the tail extends beyond the rotating shaft 9 on the adjacent self-closing grilles 8 below to prevent the self-closing grilles 8 from rotating toward the ventilation cavity.
[0022] The ventilation box 1 is manufactured by sheet metal processing;
[0023] The plurality of air ducts 7 are distributed in a linear array on the sidewall of the ventilation cavity;
[0024] When fan 2 is turned on, the hot air inside the cabinet 3 passes through the ventilation hole 5 and the ventilation cavity in sequence, which drives the self-hanging grille 8 to rotate and causes the air duct 7 to open, so that the hot air is discharged. When fan 2 is turned off, the self-hanging grille 8 descends on its own and closes the air duct 7 to prevent outside air from entering the cabinet 3, thus achieving hot and cold isolation.
[0025] The top cover of the cabinet 3 is provided with a vent 10, and the hot air inside the cabinet 3 passes through the air duct 7 and is discharged through the vent 10.
[0026] The ventilation box 1 is provided with mounting plates 11 on both sides, and the mounting plates 11 are connected to the mounting boss on the inner wall of the cabinet 3 by fastening bolts.
[0027] When the cabinet air conditioner is working normally, fan 2 is turned off. After the self-closing grille 8 is no longer driven by hot air from inside the cabinet 3, it will automatically descend and close the air duct 7, so that outside air cannot enter the cabinet 3 through the air duct 7.
[0028] The mounting base plate 4 has two ventilation holes 5, which are circular in structure.
[0029] The self-closing grille 8 is made of aluminum plate with a thickness of 0.5 mm.
[0030] When the cabinet air conditioner malfunctions, the fan 2 of this invention turns on and drives the self-closing grille 8 to rotate outward after passing through the ventilation holes and ventilation cavity in sequence, thus opening the air duct 7. The hot air passes through the air duct and is discharged to the outside through the vent 10 on the top cover of the cabinet 3. When the internal temperature of the cabinet 3 drops or the cabinet air conditioner is working normally, the fan 2 turns off. Without the driving force of hot air from inside the cabinet 3, the self-closing grille 8 automatically descends and closes the air duct 7, preventing outside air from entering the cabinet 3 through the air duct, thus achieving heat and cold isolation. When installing the self-closing grille 8, the tail of the self-closing grille 8 extends beyond the rotation axis 9 on the adjacent self-closing grille 8 below to prevent the self-closing grille 8 from rotating towards the ventilation cavity. This invention helps to prevent the normal use of the equipment inside the cabinet 3 from being affected by excessively high internal temperature.
[0031] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of this utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.
Claims
1. An emergency ventilation device for a cabinet, characterized by: The ventilation box body is arranged inside the cabinet and below the top cover of the cabinet, and is provided with a ventilation inner cavity, and a mounting bottom plate is arranged at the bottom, the mounting bottom plate is provided with a ventilation hole, and the fan is mounted on the ventilation hole through screws, a plurality of air ducts are distributed on the side wall of the ventilation inner cavity in the vertical direction, a self-falling grille is arranged at the air duct, the top of the self-falling grille is rotatably mounted on both sides of the air duct through a rotating shaft, and the tail portion exceeds the rotating shaft on the adjacent self-falling grille below to prevent the self-falling grille from rotating towards one side of the ventilation inner cavity.
2. The emergency ventilation device for a cabinet according to claim 1, characterized in that: When the fan is turned on, the hot air in the cabinet drives the self-falling grille to rotate and opens the air duct after passing through the ventilation hole and the ventilation inner cavity, and the hot air is discharged; after the fan is turned off, the self-falling grille automatically falls to close the air duct to prevent the outside air from entering the cabinet, thereby realizing cold and hot separation.
3. The emergency ventilation device for a cabinet according to claim 2, characterized in that: The top cover of the cabinet is provided with a breathable hole, and the hot air in the cabinet passes through the air duct and is discharged through the breathable hole.
4. The emergency ventilation device of claim 1, wherein: Both sides of the ventilation box body are provided with mounting plates, and the mounting plates are connected to the mounting bosses on the inner wall of the cabinet through fastening bolts.
5. The emergency ventilation device of claim 1, wherein: Two ventilation holes are arranged on the mounting bottom plate, and the ventilation holes are circular structures.
6. The emergency ventilation device of claim 1, wherein: The self-falling grille is made of an aluminum plate, and the thickness of the aluminum plate is 0.5 mm.
7. The emergency ventilation device of claim 1, wherein: The ventilation box body is made of sheet metal.
8. The emergency ventilation device of claim 1, wherein: A plurality of air ducts are distributed on the side wall of the ventilation inner cavity in a linear array.