A heat dissipation device for a classroom central control box

Abstract

This utility model relates to the field of heat dissipation equipment technology, and discloses a heat dissipation device for a classroom central control box. It includes a base frame with an exhaust fan inside. The exhaust fan actively ventilates and accelerates airflow to remove heat generated by the central control box. Slots are fixedly provided at the four corners of the base frame, and fixing frames are engaged inside these slots. Limiting components are fixedly installed on both sides of the fixing frames. This heat dissipation device for classroom central control boxes combines the active ventilation of the exhaust fan with the passive heat conduction of the heat-conducting plate and heat-conducting strip, forming a dual heat dissipation system of heat transfer and airflow. This effectively prevents equipment from stalling or stopping due to overheating, ensuring continuous teaching. The limiting components are elastically adjustable via springs A and B. The L-shaped extension rod can be adjusted laterally, and the vertical rod can be adjusted longitudinally. The limiting rod can rotate to adapt to central control boxes of different heights, making it compatible with common classroom central control boxes on the market, eliminating the need for customized heat dissipation devices for different equipment.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation equipment technology, and in particular to a heat dissipation device for a classroom central control box. Background Technology

[0002] In modern classroom teaching, the central control box is the core component that integrates the control functions of equipment such as projectors, audio equipment, lighting, and electronic whiteboards, and it needs to run continuously for a long time. Because it integrates a large number of electronic components, it continuously generates heat during operation. Since classroom central control boxes are mostly installed inside the podium or in wall-mounted enclosed spaces with poor ventilation, heat easily accumulates.

[0003] Existing heat dissipation methods have obvious limitations: traditional central control boxes rely solely on the heat dissipation holes on the outer shell for passive heat dissipation, which has low heat dissipation efficiency. In summer, the internal temperature can easily exceed 45°C, causing equipment lag, response delays, or even triggering overheat protection shutdown, affecting the teaching progress. Some external heat dissipation devices are of fixed size and cannot be adapted to classroom central control boxes of different brands and specifications. They are also prone to loosening after being fixed. Therefore, this utility model provides a heat dissipation device for classroom central control boxes. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The technical problem solved by this utility model is to provide a heat dissipation device for a classroom central control box that is highly practical, easy to operate, and has a relatively simple structure, thus solving the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a heat dissipation device for a classroom central control box, including a base frame, an exhaust fan is provided inside the base frame, the exhaust fan actively exhausts air to accelerate air circulation and remove the heat generated by the central control box, slots are fixedly opened at the four corners of the base frame, a fixing frame is fixedly engaged inside the slots, and limit components are fixedly installed on both sides of the fixing frame.

[0008] Optionally, a circular groove is provided in the middle of the surface of the mounting bracket, and a heat-conducting strip is snapped into the inside of the circular groove. A heat-conducting plate is welded to the top of the heat-conducting strip, and the heat-conducting plate is directly attached to the bottom surface of the central control box. Heat is quickly transferred to the mounting bracket through the copper heat-conducting strip, and then combined with the exhaust fan to achieve dual heat dissipation of "passive heat conduction + active ventilation".

[0009] Optionally, a dustproof net is magnetically connected to the bottom surface of the base frame at the edge of the exhaust fan.

[0010] Optionally, the limiting component includes a fixed frame installed on both sides of the fixed frame. Slots are provided on both sides of the fixed frame. A spring A is fixedly installed on the inner bottom wall of the slot. An L-shaped extension rod is fixedly installed on one end of the spring A. A spring B is inserted into the inside of the L-shaped extension rod. A vertical rod is fixedly installed on the top of the spring B. A limiting rod is rotatably connected to the side of the vertical rod.

[0011] Optionally, an anti-slip pad is fixedly installed on the side of the L-shaped extension rod, and a soft pad is laid on the surface of the limiting rod. The anti-slip pad on the side of the L-shaped extension rod and the soft pad on the surface of the limiting rod can ensure stable fixation and prevent the central control box from shifting or being scratched.

[0012] Optionally, support columns are fixedly installed at the four corners of the fixed frame. One end of each support column is inserted into the slot. The support columns at the four corners of the fixed frame are engaged with the slot, enabling quick assembly and disassembly of the base frame and the fixed frame without tools, which facilitates maintenance in classroom settings.

[0013] (III) Beneficial Effects

[0014] This utility model provides a heat dissipation device for a classroom central control box, which has the following beneficial effects:

[0015] The classroom central control box uses a heat dissipation device that combines active exhaust fan ventilation with passive heat conduction through heat-conducting plates and strips, forming a dual heat dissipation system of heat transfer and air circulation. This effectively prevents equipment from stalling or shutting down due to overheating, ensuring continuous teaching. The limiting components are elastically adjustable via springs A and B, with the L-shaped extension rod adjustable laterally and the vertical rod adjustable longitudinally. The limiting rod can rotate to adapt to central control boxes of different heights, making it compatible with common classroom central control boxes on the market, eliminating the need for customized heat dissipation devices for different equipment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the reverse side structure of the base frame of this utility model;

[0019] Figure 3 This is a schematic diagram of the reverse side structure of the fixing frame of this utility model;

[0020] Figure 4This is a schematic diagram of the cross-sectional structure of the fixed frame of this utility model.

[0021] In the diagram: 1. Base frame; 2. Exhaust fan; 3. Slot; 4. Fixing frame; 5. Limiting component; 51. Fixing frame; 52. Spring A; 53. L-shaped extension rod; 54. Spring B; 55. Vertical rod; 56. Limiting rod; 6. Heat-conducting strip; 7. Heat-conducting plate; 8. Dustproof net; 9. Anti-slip mat; 10. Soft pad; 11. Support column. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0023] Please see Figures 1 to 4 This utility model provides a technical solution: a heat dissipation device for a classroom central control box, including a base frame 1, an exhaust fan 2 inside the base frame 1, the exhaust fan 2 is a 12V silent axial fan, which is fixed to the middle of the base frame 1 by screws, with the fan facing downward to avoid hot air backflow, and slots 3 are fixedly opened at the four corners of the base frame 1, with fixing brackets 4 fixedly engaged inside the slots 3, both the base frame 1 and the fixing brackets 4 are made of lightweight aluminum alloy, which has both strength and heat dissipation, and limit components 5 are fixedly installed on both sides of the fixing brackets 4;

[0024] A circular groove is provided in the middle of the surface of the mounting bracket 4. A heat-conducting strip 6 is inserted into the inside of the groove. A heat-conducting plate 7 is welded to the top of the heat-conducting strip 6. The heat-conducting strip 6 is made of copper with a high thermal conductivity. The heat-conducting plate 7 welded to the top is a copper circular plate with a smooth surface to ensure a tight fit with the bottom of the central control box.

[0025] A dustproof mesh 8 is magnetically connected to the bottom surface of the base frame 1 at the edge of the exhaust fan 2. The dustproof mesh 8 is a metal mesh with magnetic strips attached to its edges. It is magnetically connected to the metal frame of the bottom surface of the base frame 1 and can be disassembled by hand.

[0026] The limiting component 5 includes a fixed frame 51 installed on both sides of the fixed frame 4. Slots are provided on both sides of the fixed frame 51. A spring 52 is fixedly installed on the inner bottom wall of the slot. An L-shaped extension rod 53 is fixedly installed on one end of the A spring 52. A B spring 54 is inserted into the L-shaped extension rod 53. A vertical rod 55 is fixedly installed on the top of the B spring 54. A limiting rod 56 is rotatably connected to the side of the vertical rod 55.

[0027] An anti-slip pad 9 is fixedly installed on the side of the L-shaped extension rod 53. The anti-slip pad 9 can increase the friction with the side of the central control box. A soft pad 10 is applied to the surface of the limit rod 56.

[0028] Support columns 11 are fixedly installed at the four corners of the fixing frame 4, and one end of the support column 11 is inserted into the inside of the slot 3.

[0029] In this invention, the working steps of the device are as follows:

[0030] First step: Place the base frame 1 in the central control installation area inside the classroom podium. If it needs to be fixed, it can be fixed to the desktop or bracket with screws through the reserved holes on the edge of the base frame; connect the power supply of the exhaust fan 2, and insert the heat conduction strip 6 into the round groove on the surface of the fixing frame 4; align the support columns 11 at the four corners of the fixing frame 4 with the slots 3 of the base frame 1, and press down vertically until they are in place, thus completing the assembly of the base frame and the fixing frame.

[0031] Second step: Adjust the limiting component 5 according to the size of the central control box: ① Horizontal adjustment: Pull the L-shaped extension rod 53 outward to stretch the A spring 52, place the central control box in the center of the fixing frame 4, so that the heat conduction plate 7 is in contact with the bottom surface of the central control box, release the L-shaped extension rod 53, the A spring rebounds and pushes the L-shaped extension rod, and the anti-slip pad 9 is in close contact with the side of the central control box to achieve horizontal fixation; ② Vertical and height fixation: Pull the vertical rod 55 upward to stretch the B spring 54, rotate the limiting rod 56 to the horizontal position, release the vertical rod 55, the B spring rebounds and drives the vertical rod to descend, and the soft pad 10 of the limiting rod 56 presses on the top edge of the central control box to achieve vertical and height fixation;

[0032] Third step: Magnetically attach the dustproof net 8 to the edge of the exhaust fan 2 on the bottom surface of the base frame 1 to prevent dust from entering; turn on the central control box, and the exhaust fan 2 will start running synchronously to dissipate heat. The heat generated by the central control box is transferred to the heat conduction plate 7 through the bottom surface, and then conducted to the fixing frame 4 through the heat conduction strip 6. The exhaust fan 2 will then actively expel the heat to achieve dual heat dissipation.

[0033] It should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0035] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A heat dissipation device for a classroom central control box, comprising a base frame (1), characterized in that: The base frame (1) is equipped with an exhaust fan (2) inside. The base frame (1) has slots (3) fixedly opened at the four corners. The slots (3) are fitted with a fixing frame (4). Limiting components (5) are fixedly installed on both sides of the fixing frame (4).

2. The heat dissipation device for a classroom central control box according to claim 1, characterized in that: A circular groove is provided in the middle of the surface of the fixing frame (4), and a heat-conducting strip (6) is snapped into the inside of the circular groove. A heat-conducting plate (7) is welded to the top of the heat-conducting strip (6).

3. A heat dissipation device for a classroom central control box according to claim 1, characterized in that: The bottom surface of the base frame (1) is magnetically connected to a dustproof net (8) at the edge of the exhaust fan (2).

4. A heat dissipation device for a classroom central control box according to claim 1, characterized in that: The limiting component (5) includes a fixed frame (51) installed on both sides of the fixed frame (4). Slots are provided on both sides of the fixed frame (51). An A spring (52) is fixedly installed on the inner bottom wall of the slot. An L-shaped extension rod (53) is fixedly installed on one end of the A spring (52). A B spring (54) is inserted into the L-shaped extension rod (53). A vertical rod (55) is fixedly installed on the top of the B spring (54). A limiting rod (56) is rotatably connected to the side of the vertical rod (55).

5. A heat dissipation device for a classroom central control box according to claim 4, characterized in that: The side of the L-shaped extension rod (53) is fixedly fitted with an anti-slip pad (9), and the surface of the limiting rod (56) is covered with a soft pad (10).

6. A heat dissipation device for a classroom central control box according to claim 1, characterized in that: Support columns (11) are fixedly installed at the four corners of the fixed frame (4), and one end of the support column (11) is inserted into the inside of the slot (3).

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