EC motor end cover

Abstract

The utility model discloses an EC motor end cover, and belongs to the technical field of EC motor end covers, the EC motor end cover comprises a main body frame, special-shaped reinforcing ribs, small grooves and a black matte coating, the main body frame is divided into an inner side and an outer side, the main body frame is used for supporting the whole motor structure and is connected with an external fixing device, and the inner side is the side close to the fixing device; the design is novel, the device is ingenious, when the EC motor operates to generate heat, the controller sends out a signal to adjust the rotating speed of the fan, so that a large amount of cold air enters the cavity and then is forced to bypass an obstacle formed by a complex shape to form a turbulent flow phenomenon when passing through the surfaces of the special-shaped reinforcing ribs, and meanwhile the heat exchange rate between the air and the reinforcing ribs is increased; the curved surface structure of the special-shaped reinforcing rib provides a wide contact interface for rapid diffusion of excess energy generated inside, the efficient heat transfer target is finally achieved, and the practicability of the device is greatly improved.

Description

Technical Field

[0001] The present application relates to the technical field of EC motor end covers, and in particular to an EC motor end cover designed with special-shaped reinforcement ribs. Background Art

[0002] Currently, in the design and manufacturing process of EC motors, in order to ensure the stability of motor operation and extend its service life, reinforcing ribs are usually set on the motor end cover to enhance the structural strength. However, traditional reinforcing ribs are mostly straight or simply curved. Although they enhance the structural rigidity to a certain extent, they have limited effect in improving heat dissipation performance. As motor power continues to increase, the reinforcing ribs are required to have not only higher mechanical strength but also good heat dissipation function to ensure the safe and stable operation of the motor's internal controller.

[0003] Existing rib design schemes mainly include straight ribs, corrugated ribs, and grid-shaped ribs. Among them, straight ribs are widely used in small motors due to their simple processing. However, due to the small contact surface area, they cannot effectively promote heat conduction. Corrugated ribs increase surface roughness by forming continuous waves, which helps to improve the heat exchange efficiency in local areas, but is still limited by the overall design, resulting in poor heat dissipation uniformity. Grid-shaped ribs form a more complex geometric shape through staggered arrangement. In theory, it can further expand the heat transfer path, but in reality, the high processing complexity and cost factors limit large-scale application and promotion.

[0004] Although the above-mentioned traditional rib designs can meet current needs to varying degrees, they have obvious limitations when faced with the growing demand for high performance. They are unable to significantly improve heat dissipation efficiency and are difficult to achieve low-cost mass production. This is especially true in highly integrated products such as EC motors.

[0005] To this end, the present application proposes an EC motor end cover designed with special-shaped reinforcement ribs. Summary of the Invention

[0006] The present application proposes an EC motor end cover to solve the problems raised in the above-mentioned background technology. When the EC motor generates heat during operation, the controller sends a signal to adjust the fan speed to allow a large amount of cold air to enter the cavity. Subsequently, when passing through the surface of the special-shaped reinforcement ribs, it is forced to bypass obstacles formed by the complex shape, forming turbulence, thereby enhancing the heat exchange rate between the air and the reinforcement ribs. At the same time, the curved surface structure of the special-shaped reinforcement ribs themselves provides a wide contact interface for the excess energy generated inside to be quickly diffused out, ultimately achieving the goal of efficient heat transfer and greatly improving the practicality of the device.

[0007] In order to achieve the above objectives, this application adopts the following technical solutions:

[0008] An EC motor end cover includes a main frame, special-shaped reinforcement ribs, grooves and a black matte coating. The main frame is divided into an inner side and an outer side. The main frame is used to support the entire motor structure and is connected to an external fixing device. The inner side is the side close to the fixing device, and the outer side is the side away from the fixing device. The special-shaped reinforcement ribs include a curved surface.

[0009] As a preferred embodiment, the special-shaped reinforcement ribs are composed of a plurality of irregular curved surfaces, and the special-shaped reinforcement ribs are distributed on the inner and outer surfaces of the main frame;

[0010] By arranging a curved surface on the special-shaped reinforcing rib, the special-shaped reinforcing rib is composed of multiple irregular curved surfaces, which are arranged crosswise with each other and extend radially to cover a larger range of spatial volume, thereby improving the practicality of the device.

[0011] As a preferred embodiment, each individual curved surface of the special-shaped reinforcement rib is provided with multiple groups of grooves as part of the micro-channel system;

[0012] By setting grooves, multiple groups of grooves are engraved on each individual curved surface as part of the microchannel system, aiming to increase air flow resistance while forcing the cooling medium to flow through more curved surfaces, thereby achieving optimal heat exchange conditions, thereby improving the practicality of the device.

[0013] As a preferred embodiment, each individual curved surface of the special-shaped reinforcement rib is provided with a black matte coating;

[0014] By providing a black matte coating, the black matte coating can also absorb more ambient radiation energy and accelerate the heat release rate, thereby improving the practicality of the device.

[0015] As a preferred embodiment, the curved surfaces are arranged crosswise with each other and extend radially to cover a larger spatial volume;

[0016] The curved surface structure of the special-shaped reinforcement ribs provides a wide contact interface for the rapid diffusion of excess energy generated inside, ultimately achieving the goal of efficient heat transfer, thereby improving the practicality of the device.

[0017] As a preferred embodiment, the surface treatment of the special-shaped reinforcement rib adopts an anodic oxidation process to increase wear resistance and corrosion resistance;

[0018] Through the carefully designed multi-dimensional three-dimensional geometric shape, the surface area utilization rate of the reinforcing ribs is significantly improved, thereby greatly improving the heat dissipation efficiency. Practical application shows that under the same conditions, the temperature rise of the new end cover is significantly lower than that of traditional straight rib or mesh configuration samples, especially in long-term full-load operation environments, the advantages are more prominent, thereby improving the practicality of the device.

[0019] As a preferred embodiment, a gap is provided between each individual curved surface of the special-shaped reinforcement rib, and a composite phase change material PCM is embedded in the gap between each curved surface;

[0020] By setting up composite phase change material PCM, in order to further improve the overall heat dissipation performance of the EC motor end cover, it is also possible to consider introducing composite phase change material PCM and embedding it into the gaps between the reinforcing ribs. This method can give the material the ability to store and release latent heat while maintaining the integrity of the original structure, thereby improving the practicality of the device.

[0021] As a preferred embodiment, the composite phase change material PCM can give the material the ability to store and release latent heat while maintaining the integrity of the original structure;

[0022] By setting up a composite phase change material PCM, that is, when the ambient temperature rises above a certain threshold, the PCM begins to melt and absorb additional heat, and conversely solidifies and releases heat to maintain a relatively stable thermal equilibrium state. Compared with the method of simply relying on air circulation for cooling, this method has the advantage of fast response speed and is not affected by external wind changes. It is particularly suitable for quickly restoring the system operating temperature under severe transient load fluctuations, thereby improving the practicality of the device.

[0023] Beneficial effects of this application:

[0024] 1. This EC motor end cap generates heat when the EC motor is running. The controller sends a signal to adjust the fan speed, allowing a large amount of cool air to enter the cavity. As it passes over the surface of the special-shaped reinforcement ribs, it is forced to bypass obstacles formed by the complex shape, creating turbulence. This enhances the heat exchange rate between the air and the reinforcement ribs. At the same time, the curved surface structure of the special-shaped reinforcement ribs provides a wide contact surface for the rapid dissipation of excess energy generated internally, ultimately achieving efficient heat transfer and greatly improving the practicality of the device.

[0025] 2. This EC motor end cover features a unique design with special-shaped reinforcement ribs that significantly enhances the heat dissipation capacity, helping to reduce the operating temperature of core components and extend equipment life. Advanced manufacturing technology and surface treatment processes ensure the high performance standards of the new end cover while also ensuring easy maintenance. The flexible modular design allows for easy adjustment of parameter settings based on the needs of different application scenarios, enhancing the system's universal applicability and significantly improving the device's practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the main body of the device of this application;

[0027] Figure 2 This is a schematic diagram of the inner side of the main frame of the device of this application;

[0028] Figure 3 This is a schematic diagram of the special-shaped reinforcement ribs of the device of this application.

[0029] Numbers in the figure: 1, main frame; 11, inner side; 12, outer side; 2, special-shaped reinforcement ribs; 21, curved surface; 3, groove; 4, black matte coating; 5, gap; 6, composite phase change material PCM. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0031] Reference Figure 1-3 An EC motor end cover includes a main frame 1, special-shaped reinforcement ribs 2, grooves 3 and a black matte coating 4. The main frame 1 is divided into an inner side 11 and an outer side 12. The main frame 1 is used to support the entire motor structure and is connected to an external fixing device. The inner side 11 is the side close to the fixing device, and the outer side 12 is the side away from the fixing device.

[0032] The special-shaped reinforcement rib 2 includes a curved surface 21, and the special-shaped reinforcement rib 2 is composed of multiple irregular curved surfaces 21, and the special-shaped reinforcement rib 2 is distributed on the inner side 11 and the outer side 12 of the main frame 1; by setting the curved surface 21 on the special-shaped reinforcement rib 2, the special-shaped reinforcement rib 2 is composed of multiple irregular curved surfaces 21, and these curved surfaces 21 are arranged crosswise with each other and extend radially to cover a larger range of spatial volume, thereby improving the practicality of the device.

[0033] Multiple groups of grooves 3 are provided on each individual curved surface 21 of the special-shaped reinforcement rib 2 as part of the microchannel system; by providing the grooves 3, multiple groups of grooves 3 are also engraved on each individual curved surface 21 as part of the microchannel system, aiming to increase the air flow resistance while forcing the cooling medium to flow through more curved surfaces 21, thereby achieving the optimal heat exchange state, thereby improving the practicality of the device.

[0034] A black matte coating 4 is provided on each individual curved surface 21 of the special-shaped reinforcement rib 2. By providing the black matte coating 4, the black matte coating 4 can also absorb more environmental radiation energy to accelerate the heat release rate, thereby improving the practicality of the device.

[0035] The curved surfaces 21 are arranged crosswise with each other and extend radially to cover a large spatial volume; the curved surface 21 of the special-shaped reinforcement rib 2 itself provides a wide contact interface for the excess energy generated inside to diffuse out quickly, ultimately achieving the goal of efficient heat transfer, thereby improving the practicality of the device.

[0036] The surface treatment of the special-shaped reinforcement rib 2 adopts an anodizing process to increase wear resistance and corrosion resistance; through the carefully designed multi-dimensional three-dimensional geometric shape, the surface area utilization rate of the reinforcement rib is significantly improved, thereby greatly improving the heat dissipation efficiency. Practical application shows that under the same conditions, the temperature rise of the new end cover is significantly lower than that of the traditional straight rib or mesh configuration samples, especially in a long-term full-load operation environment, the advantage is more prominent, thereby improving the practicality of the device.

[0037] A gap 5 is provided between each individual curved surface 21 of the special-shaped reinforcement rib 2, and a composite phase change material PCM6 is embedded in the gap 5 of each curved surface 21. By providing the composite phase change material PCM6, in order to further improve the overall heat dissipation performance of the EC motor end cover, it is also possible to consider introducing the composite phase change material PCM6 and embedding it in the reinforcement gap 5. This method can give the material the ability to store and release latent heat while maintaining the original structural integrity, thereby improving the practicality of the device.

[0038] Composite phase-change material PCM6 can give the material the ability to store and release latent heat while maintaining its original structural integrity. By setting up composite phase-change material PCM6, when the ambient temperature rises above a certain threshold, the PCM begins to melt and absorb additional heat, and conversely, it solidifies and releases heat to maintain a relatively stable thermal equilibrium state. Compared with the method of relying solely on air circulation for cooling, this method has the advantage of fast reaction speed and is not affected by external wind changes. It is particularly suitable for quickly restoring the system operating temperature under conditions of severe transient load fluctuations, thereby improving the practicality of the device.

[0039] Working principle: The main feature of the end cover is the use of special-shaped reinforcement ribs 2 to increase the heat dissipation area and improve the heat dissipation effect of the controller. The end cover consists of two major parts: a main frame 1 and a special-shaped reinforcement rib 2. The main frame 1 is used to support the entire motor structure and is connected to an external fixing device. The special-shaped reinforcement ribs 2 are distributed on the inner side 11 and the outer side 12 of the main frame 1. Specifically, the special-shaped reinforcement rib 2 is composed of a plurality of irregular curved surfaces 21. These curved surfaces 21 are arranged crosswise with each other and extend radially to cover a larger range of spatial volume. In addition, each individual curved surface 21 is engraved with multiple groups of grooves 3 as part of the microchannel system, which aims to increase the air flow resistance while forcing the cooling medium to flow through more curved surfaces 21, thereby achieving the optimal heat exchange state. In the entire manufacturing process, the initial blank is first generated by precision casting technology and then fine-processed by CNC machine tools, ensuring the high consistency and dimensional accuracy of the special-shaped reinforcement rib 2 structure.

[0040] The material of the main frame 1 is recommended to be aluminum alloy 6061-T6 series, because this type of alloy has good thermal conductivity and sufficient tensile strength and is suitable for making high-strength load-bearing components. The surface treatment of the special-shaped reinforcement rib 2 adopts anodizing process to increase wear resistance and corrosion resistance. At the same time, the black matte coating 4 can also absorb more environmental radiation energy and accelerate the heat release rate.

[0041] When the EC motor generates heat, the controller sends a signal to adjust the fan speed to allow a large amount of cold air to enter the cavity. Then, when passing through the surface of the special-shaped reinforcement rib 2, it is forced to bypass obstacles formed by the complex shape, forming turbulence, which enhances the heat exchange rate between the air and the reinforcement rib. At the same time, the curved surface 21 structure of the special-shaped reinforcement rib 2 itself provides a wide contact interface for the excess energy generated inside to quickly diffuse out, ultimately achieving the goal of efficient heat transfer.

[0042] To further enhance the overall heat dissipation performance of the EC motor end cover, consideration can be given to embedding a composite phase-change material (PCM) 6 within the rib gaps 5. This approach allows the material to store and release latent heat while maintaining the integrity of the original structure. Specifically, when the ambient temperature rises above a certain threshold, the PCM begins to melt and absorb additional heat. Conversely, it solidifies and releases heat to maintain a relatively stable thermal equilibrium. Compared to relying solely on air circulation for cooling, this method offers the advantages of rapid response and immunity to external wind fluctuations. It is particularly suitable for rapidly restoring system operating temperatures under conditions of severe transient load fluctuations.

[0043] To address the issue of poor heat dissipation from the ribs on the EC motor end cover, this technology proposes a new design concept: special-shaped ribs 2. Through carefully designed multi-dimensional geometric shapes, the surface area utilization of the ribs is significantly increased, thereby significantly improving heat dissipation efficiency. Practical applications have shown that, under the same conditions, the temperature rise of the new end cover is significantly lower than that of traditional straight-rib or mesh-shaped samples, especially under long-term full-load operating conditions.

[0044] Compared with the existing technology, the technical effects of this technical solution are as follows: the unique design of the special-shaped reinforcement rib 2 greatly improves the heat dissipation capacity of the EC motor end cover, helps to reduce the operating temperature of the core components and extend the life of the equipment; with the help of advanced manufacturing technology and surface treatment process, the high performance standards of the new end cover product are ensured, while also taking into account the characteristics of easy maintenance; the flexible modular design allows easy adjustment of parameter settings according to the needs of different application scenarios, enhancing the universal applicability of the system.

[0045] The above are only preferred specific implementation methods of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present application within the technical scope disclosed in the present application, and they should be covered by the protection scope of the present application.

Claims

1. An EC motor end cover, comprising a main frame (1), special-shaped reinforcement ribs (2), grooves (3) and a black matte coating (4), characterized in that: The main frame (1) is divided into an inner side (11) and an outer side (12). The main frame (1) is used to support the entire motor structure and is connected to an external fixing device. The inner side (11) is a side close to the fixing device, and the outer side (12) is a side away from the fixing device. The special-shaped reinforcement rib (2) includes a curved surface (21). The special-shaped reinforcement rib (2) is composed of a plurality of irregular curved surfaces (21), and the special-shaped reinforcement rib (2) is distributed on the inner (11) and outer (12) surfaces of the main frame (1); a plurality of grooves (3) are provided on each individual curved surface (21) of the special-shaped reinforcement rib (2) as part of the microchannel system; and a black matte coating (4) is provided on each individual curved surface (21) of the special-shaped reinforcement rib (2).

2. An EC motor end cover according to claim 1, characterized in that: The curved surfaces (21) are arranged crosswise with each other and extend radially.

3. The EC motor end cover according to claim 1, characterized in that: The surface treatment of the special-shaped reinforcement rib (2) adopts an anodic oxidation process to increase wear resistance and corrosion resistance.

4. The EC motor end cover according to claim 1, characterized in that: A gap (5) is provided between each individual curved surface (21) of the special-shaped reinforcement rib (2), and a composite phase change material PCM (6) is embedded in the gap (5) of each curved surface (21).

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