Cold channel single automatic fire-fighting skylight
A single automatic fire skylight driven by a low-power motor through the cooperation of an active and a driven plate solves the problems of complex structure and high cost of fire skylights in modular data centers. It realizes the functions of rapid opening and automatic reset, reduces the configuration of motors and components, and meets the safety requirements of modular data centers.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-23
- Publication Date
- 2026-04-03
AI Technical Summary
Existing modular data center fire protection skylights are complex in structure, have poor stability, and are costly, especially the linkage control method driven by high-power motors, which increases investment costs.
By employing a clever combination of an active and a driven disc, a single sunroof is driven by a low-power motor, and combined with an electromagnet locking mechanism, automatic opening and resetting are achieved, simplifying the structure and reducing the motor power requirements.
It realizes a single automatic fire extinguishing skylight with simple structure, high stability and low cost. It can quickly open the fire extinguishing gas and automatically reset and close, reducing the configuration of motors and components, and meeting the safety requirements of modular data centers.
Smart Images
Figure CN224078532U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to data center computer rooms, specifically to a single automatic fire-fighting skylight for enclosed cold aisles in data center computer rooms. Background Technology
[0002] With the maturity and promotion of cloud computing, artificial intelligence (AI), 5G, and Internet of Things technologies, the total amount of data in society is experiencing explosive growth, and the demand for data resource storage, computing, and application is also increasing significantly, with the annual growth rate of computing power demand expected to be as high as 20% or more.
[0003] Modular data centers, as a public infrastructure for computing power, align with the current stage of socio-economic development and transformation needs, becoming a crucial information infrastructure supporting and leading the development of the digital economy, intelligent industries, smart cities, and smart society. With significant advantages such as high efficiency, energy saving, flexible deployment, and ease of maintenance, modular data centers have been widely used in data center construction. Modular data centers enclose all heat-generating components within a frame, maximizing the isolation from heat exchange and transfer with the external environment. However, this airtightness also introduces fire safety hazards. In the event of a fire in the cold aisle of a data center, it is necessary to promptly open the fire escape windows to expel large amounts of smoke and heat, reduce the indoor temperature, prevent the fire from spreading, protect equipment and building structures, and create favorable conditions for personnel evacuation and fire rescue.
[0004] Currently, existing fire-fighting integrated skylights have many problems:
[0005] 1. Some solutions use fire-fighting automatic skylights with independent reset control, that is, each fire-fighting skylight is equipped with a separate motor and gears or chains to complete the reset and closing function, resulting in complex structure, poor stability and high cost.
[0006] 2. Most solutions adopt one-to-many reset control for automatic fire skylights, that is, one motor simultaneously controls multiple skylights (the number of skylights controlled by one motor depends on the motor power, generally one-to-three, one-to-four, one-to-six or one-to-nine). The motor is a push rod motor, and the one-to-many control method requires a high-power motor. The higher the motor power, the more expensive it is. Each skylight also needs to be equipped with additional push rod sliders and other components, which further increases the investment and the overall cost is high.
[0007] Therefore, developing a modular data center single automatic fire-fighting skylight that is simple in structure, stable, and low in cost has important practical significance. Utility Model Content
[0008] The purpose of this utility model is to overcome the shortcomings in the above-mentioned background technology and provide a single automatic fire-fighting skylight for cold passages. This skylight should have the characteristics of simple structure, good stability and low cost.
[0009] The technical solution of this utility model is:
[0010] A single automatic fire-fighting skylight for cold aisles includes a controller and several skylight units; characterized in that: each skylight unit includes a frame with a window, a reset mechanism for closing the window, and a locking mechanism for locking the window; the controller is electrically connected to the reset mechanism and the locking mechanism.
[0011] The reset mechanism includes a motor mounted on the frame, an active disk connected to the motor shaft, a driven disk connected to the window shaft, and a first limit switch for detecting the rotation position of the active disk; the driven disk is provided with a reset groove; and the active disk is provided with a reset rod that extends into the reset groove.
[0012] The window is rotatably positioned on the frame via a window pivot.
[0013] The rotation angle of the motor is greater than the opening angle of the window.
[0014] The motor shaft is arranged coaxially with the window shaft; the first limit switch is located between the driving plate and the driven plate.
[0015] The locking mechanism includes an electromagnet mounted on the frame and an iron block mounted on the window frame.
[0016] The center of gravity of the locking mechanism and the window is located on the left side of the window's pivot.
[0017] The frame is also equipped with a second limit switch for detecting the position of the window.
[0018] The controller is electrically connected to the motor, electromagnet, first limit switch and second limit switch.
[0019] The skylight units are arranged in a straight line, and the window pivots of each skylight unit are arranged in parallel.
[0020] The beneficial effects of this utility model are:
[0021] 1. Cost Saving: This utility model uses the ingenious cooperation of the active and driven discs to transmit motor power to achieve single sunroof reset and closing. Compared with the traditional independent reset control that requires gears or chains, it simplifies the overall structure and improves operational stability. Compared with the traditional one-to-many reset control that requires high-power motors and push rods and sliders, it reduces the total power supply of the motor, reduces the configuration of power supply components and the number of parts, and greatly saves costs.
[0022] 2. Flexible use and easy installation: This utility model has a simple structure, reasonable design, and is easy to install. It can be flexibly configured according to the actual needs of modular data centers to meet the usage requirements of different scenarios.
[0023] 3. Automatic and rapid opening: In the event of a fire, the skylight can open automatically and quickly, allowing fire extinguishing gas to rapidly enter the machine room for fire suppression, effectively controlling the fire and reducing losses.
[0024] 4. Automatic Reset and Closing: After the danger has passed, the sunroof can automatically reset and close under the combined action of the motor, the drive disc, and the driven disc, without manual intervention, which improves the convenience and safety of use. Attached Figure Description
[0025] The following describes some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components.
[0026] Figure 1 This is a three-dimensional structural diagram of the present invention (with the window closed).
[0027] Figure 2 yes Figure 1 A top-view structural diagram.
[0028] Figure 3 This is a three-dimensional structural diagram of the present invention (with a window).
[0029] Figure 4 yes Figure 3 A top-view structural diagram.
[0030] Figure 5 This is a three-dimensional structural diagram of the frame of this utility model.
[0031] Figure 6 This is a three-dimensional structural diagram of the window of this utility model.
[0032] Figure 7 This is a three-dimensional structural diagram of the motor of this utility model.
[0033] Figure 8 This is a three-dimensional structural diagram of the driven disk of this utility model.
[0034] Figure 9 This is a three-dimensional structural diagram of the active disc of this utility model.
[0035] Figure 10 This is one of the schematic diagrams of the working steps of this utility model.
[0036] Figure 11 This is the second schematic diagram of the working steps of this utility model.
[0037] Figure 12 This is the third schematic diagram of the working steps of this utility model.
[0038] Figure 13 This is the fourth schematic diagram of the working steps of this utility model.
[0039] Attached reference numerals: Frame 1, Horizontal beam 1-1, Vertical beam 1-2, Window 2, Window pivot 2-1, Window panel 2-2, Frame 2-3, Motor 3, Active disc 4, Reset rod 4-1, Driven disc 5, Reset slot 5-1, First limit switch 6, Electromagnet 7, Iron block 8, Second limit switch 9. Detailed Implementation
[0040] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.
[0041] This invention provides a single automatic fire-fighting skylight for cold aisles. The skylight is normally kept closed, but it automatically and quickly opens in case of danger to allow fire-extinguishing gas to enter the machine room for fire suppression. After the danger has passed, the skylight can automatically reset and close.
[0042] like Figure 1 As shown, a single automatic fire-fighting skylight in a cold aisle includes a skylight unit and a controller (not shown in the figure). The skylight units are arranged in a straight line (along...). Figure 2 (Arranged horizontally), the number of skylight units depends on the needs, usually 1-4 skylight units are set. The figure shows a total of 4 skylight units.
[0043] The sunroof unit includes a frame 1, a window 2, a reset mechanism, and a locking mechanism. The reset mechanism is used to close the sunroof unit, and then the locking mechanism locks the sunroof unit. The controller is electrically connected to the reset mechanism and the locking mechanism.
[0044] The frame includes two horizontal beams 1-1 and two vertical beams 1-2. The window includes a window panel 2-2 and a frame 2-3, and the window is rotatably positioned on the horizontal beams of the frame via a window pivot 2-1.
[0045] The center of gravity of the window is located to the left of the window's pivot point. Figure 2 and Figure 4 (On the left side), when the locking mechanism is de-energized, the window automatically opens due to the deflection of its center of gravity. The opening angle of the window is less than 90 degrees, preferably 70 degrees. For example... Figure 3 and Figure 4As shown, when the window is open, the left edge of the window border is below the frame, and the right edge of the window border is above the frame. When the skylight is closed, the two edges of the window border rise or fall to be flush with the frame, respectively.
[0046] The skylight unit's frame is also equipped with a limiting component (omitted in the figure) to control the window's rotation angle. All skylight unit frames are connected as one unit.
[0047] The reset mechanism includes a motor 3, a driving plate 4, a driven plate 5, and a first limit switch 6.
[0048] The motor is fixed on the crossbeam of the frame. The motor shaft is arranged coaxially with the window shaft. The active disk is coaxially connected to the motor shaft, and the driven disk is coaxially connected to the window shaft. A matching reset groove 5-1 and a reset rod 4-1 are provided between the active disk and the driven disk. The first limit switch is used to detect whether the active disk has rotated to the correct position.
[0049] The driven disk is provided with an arc-shaped reset groove 5-1. The reset groove is centered on the window's pivot point, and the central angle corresponding to the reset groove is greater than 90 degrees, preferably 120 degrees. This avoids interference between the driving disk and the driven disk when the sunroof unit is opened. The rotation angle of the motor is less than the central angle corresponding to the reset groove, and the rotation angle of the motor is greater than the opening and closing angle of the window, preferably 100 degrees. The driving disk is provided with a reset rod that extends into the reset groove.
[0050] The driven plate has two symmetrically arranged reset slots, and the driving plate has two symmetrically arranged reset rods, with one reset rod extending into each reset slot.
[0051] The first limit switch is positioned between the driving plate and the driven plate. A reset rod triggers the first limit switch to detect the rotation angle of the driving plate. The first limit switch is fixed to the driven plate. The driven plate has an M2 threaded hole for mounting the first limit switch.
[0052] The locking mechanism includes an electromagnet 7, an iron block 8, and a second limit switch 9. For example... Figure 4 As shown, the locking mechanism is located on the left side of the window's pivot point. The electromagnet and the second limit switch are mounted on the longitudinal beam on the left side of the frame, and the iron block is positioned on the left edge of the window frame to ensure that the electromagnet can attract the iron block, keeping the skylight unit closed. The second limit switch is used to detect whether the window is closed.
[0053] The controller is electrically connected to the motor, electromagnet, first limit switch and second limit switch.
[0054] All components of this utility model are existing technologies.
[0055] The working principle of this utility model is as follows:
[0056] 1. Initial state, such as Figure 1 and Figure 10 As shown, when the locking mechanism is energized, it generates a magnetic force to hold the window in place, keeping the skylight unit closed. At this time, the angle α between the reset rod and the extreme position of the reset groove in the counterclockwise rotation direction is greater than 90 degrees, preventing the window from rotating excessively and damaging the reset mechanism. Figure 10 α = 100 degrees;
[0057] 2. In case of an emergency such as a fire, the controller sends a signal, the locking mechanism loses power, and the window rotates rapidly 70 degrees under gravity (e.g., Figure 3 As shown), the sunroof unit opens, and the driven disc rotates 70 degrees counterclockwise. Figure 11 As shown in the diagram, the motor is not working, and the drive disc remains stationary. At this time, a certain angle β is reserved between the reset rod and the extreme position of the reset groove in the counterclockwise rotation direction as a buffer stroke. Figure 1 β = 30 degrees;
[0058] 3. After the alarm is cleared, the sunroof unit is reset. The controller sends a signal, the motor starts, and the drive disc first rotates 30 degrees clockwise. Figure 12 As shown), then the active disk drives the driven disk and the form to rotate 70 degrees clockwise simultaneously. Figure 13 As shown), the active disc rotates 100 degrees clockwise.
[0059] 4. After the second limit switch detects that the window is closed, the controller sends a signal, the motor stops running and the locking mechanism is energized to generate magnetic force to hold the window in place, and the skylight unit is closed.
[0060] 5. Three seconds after the sunroof unit closes, the controller sends a signal, and the motor drives the drive disc to rotate 100 degrees counterclockwise. Figure 10 ), reserving space for the automatic opening of the form; after the first limit switch detects that the active disk has returned to the correct position, the motor stops running;
[0061] 6. In case of an emergency such as a fire, proceed to step 2.
[0062] This utility model is specifically designed for the characteristics of modular data centers, and can meet the fire safety requirements of modular data centers, providing a strong guarantee for the safe operation of modular data centers.
[0063] This invention features an automatic reset function, which automatically closes after the danger has passed, avoiding the inconvenience of manually closing traditional skylights and improving the convenience and safety of use.
[0064] This invention only requires a low-power motor with a torque of 18-45 kgf.cm, costing approximately 20 yuan, thus keeping the cost of a single skylight below 70 yuan. In contrast, a traditional one-to-four skylight requires a motor costing at least 200 yuan, a push rod / slider costing approximately 80 yuan, and an average cost of 300 yuan per skylight.
[0065] This invention simplifies the structure and reduces costs by controlling all individual skylights in the channel to reset simultaneously using a controller.
[0066] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.
Claims
1. A single automatic fire-fighting skylight for cold aisles, comprising a controller and several skylight units; characterized in that: The skylight unit includes a frame (1) with a window (2), a reset mechanism for closing the window, and a locking mechanism for locking the window; the controller is electrically connected to the reset mechanism and the locking mechanism. The reset mechanism includes a motor (3) mounted on the frame, an active disk (4) connected to the motor shaft, a driven disk (5) connected to the window shaft, and a first limit switch (6) for detecting the rotation position of the active disk; the driven disk is provided with a reset groove (5-1); the active disk is provided with a reset rod (4-1) extending into the reset groove.
2. The single automatic fire-fighting skylight for cold aisles according to claim 1, characterized in that: The window is rotatably positioned on the frame via a window pivot (2-1).
3. A single automatic fire-fighting skylight for cold aisles according to claim 2, characterized in that: The rotation angle of the motor is greater than the opening angle of the window.
4. A single automatic fire-fighting skylight for cold aisles according to claim 3, characterized in that: The motor shaft is arranged coaxially with the window shaft; the first limit switch is located between the driving plate and the driven plate.
5. A single automatic fire-fighting skylight for cold aisles according to claim 4, characterized in that: The locking mechanism includes an electromagnet (7) mounted on the frame and an iron block (8) mounted on the window frame.
6. A single automatic fire-fighting skylight for cold aisles according to claim 5, characterized in that: The center of gravity of the locking mechanism and the window is located on the left side of the window's pivot.
7. A single automatic fire-fighting skylight for cold aisles according to claim 6, characterized in that: The frame is also equipped with a second limit switch (9) for detecting the position of the window.
8. A single automatic fire-fighting skylight for cold aisles according to claim 7, characterized in that: The controller is electrically connected to the motor, electromagnet, first limit switch and second limit switch.
9. A single automatic fire-fighting skylight for cold aisles according to claim 8, characterized in that: The skylight units are arranged in a straight line, and the window pivots of each skylight unit are arranged in parallel.