High efficiency ec cowling device
Patent Information
- Application Number
- CN202522271953.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-28
- Publication Date
- 2026-10-16
- Estimated Expiration
- 2035-10-28
AI Technical Summary
传统风罩多采用普通交流电机驱动风扇,存在能耗高、调速性能差、噪音大等缺陷;且整体结构稳定性不足,长期受碰撞或振动易导致框架变形,进而影响散热效果与设备寿命
[0015] This invention enables the EC motor to achieve high energy efficiency and precise speed regulation, reducing energy consumption by more than 30% compared to traditional fan covers. It also boasts high heat dissipation efficiency. The aluminum alloy frame and reinforced corner guards provide strong impact and vibration resistance, resulting in a long service life. The rear mounting bracket and multiple mounting holes allow it to be adapted to various installation scenarios, such as equipment chassis or walls. In summary, this invention combines energy saving, high efficiency, and structural stability, making it highly practical.
Smart Images

Figure CN224859738U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ventilation and heat dissipation equipment technology, specifically a high-efficiency EC fan cover device. Background Technology
[0002] In industrial production or commercial equipment operation, shrouds and fans are often used for heat dissipation to ensure equipment stability. Traditional shrouds mostly use ordinary AC motors to drive fans, which have drawbacks such as high energy consumption, poor speed regulation performance, and high noise. Moreover, the overall structural stability is insufficient, and long-term impact or vibration can easily cause the frame to deform, thereby affecting the heat dissipation effect and the life of the equipment.
[0003] With the development of energy-saving technologies, electronically commutated (EC) motors have gradually gained attention due to their advantages such as "high efficiency, energy saving, and wide speed range". However, existing EC shrouds still have room for optimization in terms of fan layout, airflow guidance structure, and overall strength design, making it difficult to fully utilize the performance advantages of EC motors, resulting in poor heat dissipation efficiency and unsatisfactory energy consumption control. Therefore, there is an urgent need for a high-efficiency EC shroud device to solve the above-mentioned technical problems. Utility Model Content
[0004] The purpose of this invention is to provide a high-efficiency EC shroud device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A high-efficiency EC fan shroud device includes a main frame, a top mesh ventilation side panel on the top of the main frame, side mesh ventilation side panels on both sides of the main frame, a heat dissipation shell on the front face of the main frame facing the EC fan, heat dissipation fins on the heat dissipation shell, reinforced corner guards at the four corners of the main frame, a control switch on the front face of the main frame, a speed control switch on the front face of the main frame and next to the control switch, and a mounting bracket on the back of the main frame.
[0007] As a preferred embodiment of this utility model, the mounting bracket has several mounting holes.
[0008] As a preferred technical solution of this utility model, the mesh shape of the side mesh ventilation side plate is hexagonal.
[0009] As a preferred technical solution of this utility model, the mesh shape of the top mesh ventilation side plate is hexagonal.
[0010] As a preferred embodiment of this utility model, the main frame is a cuboid structure made of aluminum alloy.
[0011] As a preferred embodiment of this invention, the reinforcing corner protector is made of aluminum alloy.
[0012] As a preferred embodiment of this utility model, the mounting bracket is L-shaped.
[0013] As a preferred technical solution of this utility model, the reinforced corner guards are fixedly connected to the dead corner of the main frame by bolts.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] This invention enables the EC motor to achieve high energy efficiency and precise speed regulation, reducing energy consumption by more than 30% compared to traditional fan covers. It also boasts high heat dissipation efficiency. The aluminum alloy frame and reinforced corner guards provide strong impact and vibration resistance, resulting in a long service life. The rear mounting bracket and multiple mounting holes allow it to be adapted to various installation scenarios, such as equipment chassis or walls. In summary, this invention combines energy saving, high efficiency, and structural stability, making it highly practical. Attached Figure Description
[0016] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the front structure of this utility model;
[0019] Figure 3 This is a side view of the structure of this utility model;
[0020] Figure 4 This is a top view of the structure of this utility model;
[0021] Figure 5 This utility model Figure 1 Enlarged structural diagram at point A;
[0022] Figure 6 This is a rear view structural diagram showing the positional relationship between the main frame and the mounting bracket of this utility model.
[0023] In the diagram: 1. Main frame; 2. Top mesh ventilation side panel; 3. Heat dissipation shell; 4. Heat dissipation fins; 5. Side mesh ventilation side panel; 6. Reinforced corner protectors; 7. EC fan; 8. Control switch; 9. Speed control switch; 10. Mounting bracket; 11. Mounting holes. Detailed Implementation
[0024] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. In the embodiments of the present utility model, the different types of cross-sectional lines are not labeled according to national standards, nor do they specify material requirements for the components; they are used to distinguish the cross-sectional views of the components in the drawings.
[0025] Please see Figure 1-6 A high-efficiency EC fan shroud device includes a main frame 1, a top mesh ventilation side panel 2 on the top of the main frame 1, side mesh ventilation side panels 5 on both sides of the main frame 1, a heat dissipation shell 3 on the front face of the main frame 1 facing the EC fan 7, at least two EC fans 7 are arranged vertically at intervals on the front of the main frame 1, and the blades of each EC fan 7 face the same direction to form a directional airflow channel, heat dissipation fins 4 are provided on the heat dissipation shell 3 to assist in motor cooling and ensure long-term stable operation, reinforced corner guards 6 are provided at the four corners of the main frame 1, and a control switch 8 is provided on the front face of the main frame 1. A speed control switch 9 is located on one side of the main frame 1 and is electrically connected to each EC fan 7. It is used to adjust the speed of the EC fan 7. The switch includes a control circuit board and operation buttons. The control circuit board integrates an MCU microcontroller unit and a speed control circuit. The operation buttons allow manual input of speed levels or stepless speed control commands. At the same time, the control circuit board can be connected to an external temperature sensor, which can automatically adjust the speed according to the ambient temperature to achieve on-demand heat dissipation. A mounting bracket 10 is located on the back of the main frame 1. The EC fan 7 consists of an EC motor and fan blades. The EC motor adopts electronic commutation technology, which improves energy efficiency by more than 30% compared with traditional motors and has a wide speed range (adjustable from 500-3000 RPM).
[0026] The mounting bracket 10 has several mounting holes 11.
[0027] Among them, the mesh shape of the side mesh ventilation side plate 5 is hexagonal. The airflow resistance of the hexagonal mesh is less than that of the circular mesh, resulting in higher ventilation efficiency. The mesh size can be set uniformly or gradually along the airflow direction to further optimize the airflow efficiency.
[0028] The top mesh ventilation side panel 2 has a hexagonal mesh structure.
[0029] The main frame 1 is a cuboid structure made of aluminum alloy.
[0030] Among them, the reinforced corner guards 6 are made of aluminum alloy, which enhances the structural strength of the main frame 1, buffers the impact of collisions and vibrations on the frame, and prevents deformation.
[0031] The mounting bracket 10 has an L-shaped structure. The mounting bracket 10 can fix the device to the external equipment chassis or wall by means of expansion bolts or screws, making the installation convenient and stable.
[0032] Among them, the reinforced corner guard 6 is fixedly connected to the dead corner of the main frame 1 by bolts.
[0033] The working principle and usage process of this utility model: First, the multiple EC fans 7 arranged vertically and horizontally on the front of the device are the power core of the system. All their fan blades face the same direction, which means that they work as intake fans or exhaust fans at the same time (usually to draw in external cold air and blow it into the equipment). This design forms a unified and highly directional airflow corridor, avoiding turbulence and wind pressure loss caused by airflow direction conflicts between fans, thereby maximizing airflow efficiency.
[0034] Driven by the EC fan 7, external cold air is first drawn into the device through the side mesh ventilation side plate 5 and the top mesh ventilation side plate 2. The hexagonal mesh structure of these side plates has less airflow resistance than traditional round or square mesh, which can introduce more air with less energy loss, thus improving the overall ventilation efficiency. The drawn-in air is collected in the main frame 1 and then blown out uniformly and centrally through the front heat dissipation shell 3 by the EC fan 7, directly acting on the equipment or space that needs heat dissipation, forming a directional, high-speed airflow channel that enters from the side and top of the device and blows out from the front.
[0035] Users can start and stop the entire system via control switch 8 and manually intervene via speed control switch 9. This allows for selection of preset speed levels or stepless speed adjustment, directly changing the speed of all EC fans 7 (adjustable from 500-3000 RPM), thereby linearly adjusting airflow and heat dissipation intensity. The device's control system can be connected to an external temperature sensor. The sensor monitors key temperature points of the target device or environment in real time. The temperature signal is continuously transmitted to the MCU microcontroller integrated on the control circuit board. The MCU compares and calculates the received temperature value with preset temperature thresholds or curves. Based on the calculation results, the MCU automatically adjusts the speed of the EC fans through the speed control circuit. When the temperature is low, the MCU controls the fans to run at a low speed to maintain basic heat dissipation while achieving quiet operation and energy saving. When the temperature rises, the MCU instructs the fans to increase their speed and airflow to enhance heat dissipation capacity. When the temperature falls back, the fan speed also decreases.
[0036] The EC fan 7 is the core of its high-efficiency operation. Its electronic commutation technology has a higher energy conversion efficiency (more than 30% higher energy efficiency) compared to traditional AC induction motors. It also has a wide range and stable speed adjustment capability, which is the physical basis for realizing intelligent speed regulation. The heat sink shell and heat sink fins of the EC fan mainly serve to cool the motor of the EC fan 7 itself. The motor generates heat when it runs. If the heat accumulates, it will affect its performance and lifespan. The heat sink fins 4 increase the surface area in contact with the airflow. When the airflow generated by the fan blows over it, it can quickly carry away the heat generated by the motor, ensuring that the EC fan 7 can operate stably for a long time, thereby ensuring the reliability of the entire heat dissipation system.
[0037] The main frame 1 and the reinforced corner guards 6 are made of aluminum alloy, providing robust support and cushioning impacts and vibrations. This ensures that the internal fan and circuitry can remain precisely aligned and operate stably in harsh industrial environments, preventing airflow channels from being affected or components from being damaged due to frame deformation.
[0038] The mounting bracket 10 features an L-shaped structure and mounting holes, allowing the entire device to be easily and securely installed on various equipment chassis or walls. This ensures that the airflow channel outlet is accurately aligned with the area requiring heat dissipation. Any content not described in detail in this specification is prior art known to those skilled in the art.
[0039] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.
Claims
1. A high-efficiency EC shroud device, comprising a main frame (1), characterized in that: The main frame (1) is provided with a top mesh ventilation side plate (2) on the top, and side mesh ventilation side plates (5) on both sides of the main frame (1). A heat dissipation shell (3) is provided on the front face of the main frame (1) facing the EC fan (7). Heat dissipation fins (4) are provided on the heat dissipation shell (3). Reinforced corner guards (6) are provided at the four corners of the main frame (1). A control switch (8) is provided on the front face of the main frame (1). A speed control switch (9) is provided on the front face of the main frame (1) and on one side of the control switch (8). A mounting bracket (10) is provided on the back of the main frame (1).
2. The high-efficiency EC shroud device according to claim 1, characterized in that: The mounting bracket (10) has several mounting holes (11).
3. The high-efficiency EC shroud device according to claim 1, characterized in that: The mesh shape of the side mesh ventilation side plate (5) is hexagonal.
4. The high-efficiency EC shroud device according to claim 1, characterized in that: The top mesh ventilation side panel (2) has a hexagonal mesh structure.
5. The high-efficiency EC shroud device according to claim 1, characterized in that: The main frame (1) is a cuboid structure made of aluminum alloy.
6. The high-efficiency EC shroud device according to claim 1, characterized in that: The reinforced corner protector (6) is made of aluminum alloy.
7. The high-efficiency EC shroud device according to claim 1, characterized in that: The mounting bracket (10) has an L-shaped structure.
8. The high-efficiency EC shroud device according to claim 1, characterized in that: The reinforced corner guard (6) is fixedly connected to the dead corner of the main frame (1) by bolts.