Integrated heat dissipation end cover casing
By designing an integrated forming motor cooling system, including setting up a runner system in the case and end cover, the problem of poor heat dissipation at the winding ends is solved, and a more uniform and efficient heat dissipation effect is achieved.
Patent Information
- Application Number
- CN202421820948.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-07-30
AI Technical Summary
The traditional motor cooling method is poor when cooling the ends of the winding, resulting in uneven heat dissipation, especially the high temperature of the rear end cover and the rear half of the motor.
An integrated heat dissipation end cover case is designed, and the end cover and case are manufactured through integrated molding. A runner system is provided throughout the case and end cover to ensure that the cooling medium can flow effectively and evenly cover all areas that need cooling.
It improves the heat dissipation effect and uniformity of the motor, ensures that the temperature distribution of the motor along the axial direction is more uniform, and avoids local overheating.
Smart Images
Figure CN222852089U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of motor cooling and heat dissipation, in particular to an integrated heat dissipation end cover casing. Background Art
[0002] The traditional casing liquid cooling method is mainly to arrange coolant pipes in the motor casing and use the flow of liquid to take away the heat generated by the motor when it is working. However, this cooling method has some limitations, especially when cooling the winding ends. The winding ends are located inside the motor and far away from the casing. It is difficult for the coolant flow to directly contact these areas, resulting in unsatisfactory heat dissipation. In addition, the front cover of the motor is usually installed on the mounting plate of the system. Because there is a better heat conduction path between the front cover and the mounting plate, the heat transfer efficiency of the front end of the motor is higher, while the rear end is relatively difficult to dissipate heat. This will cause uneven heat dissipation of the motor along the axial direction, and the temperature of the rear cover and the rear half of the motor will be higher than the front half. Especially when the motor is relatively slender, the temperature gradient of the motor along the axial direction will be greater, and the temperature distribution will be uneven, resulting in the temperature of the rear cover and the rear half of the motor being too high. Utility Model Content
[0003] Technical problems to be solved by utility models
[0004] Aiming at the technical problems of poor heat dissipation effect and uneven heat dissipation of existing motors, the utility model provides an integrated heat dissipation end cover casing, which improves the heat dissipation effect and uniformity of the end cover casing.
[0005] Technical Solution
[0006] In order to solve the above problems, the technical solution provided by the utility model is:
[0007] An integrated heat dissipation end cover casing comprises an end cover portion and a casing portion which are integrally formed, wherein the casing portion is provided with an inlet and an outlet, wherein the inlet is connected to a casing flow channel extending throughout the casing portion and an end cover inlet hole leading to the end cover portion, wherein an end cover flow channel connected to the end cover inlet hole is provided in the end cover portion, wherein the end cover flow channel is provided with an end cover outlet hole, wherein the end cover outlet hole is connected to the casing inlet hole, and wherein the casing flow channel and the casing inlet hole are connected to the outlet.
[0008] Integrated molding: The end cover part and the casing part are manufactured through integrated molding, which reduces the thermal resistance at the interface and ensures the integrity and strength of the structure.
[0009] Flow channel design: There are flow channels inside the casing, which start from the inlet, spread throughout the casing, and are connected to the flow channels in the end cover. This design allows the cooling medium (such as liquid or gas) to flow more effectively inside the casing and take away heat.
[0010] Inlet and outlet: The casing is provided with an inlet and an outlet, so that the cooling medium can smoothly enter and leave the system to form a circulation.
[0011] End cover flow channel: The end cover part is also provided with flow channels, which are connected with the flow channels of the casing to ensure that the cooling medium can evenly cover all areas that need to be cooled, thereby improving the uniformity of heat dissipation.
[0012] End cover inlet and outlet holes: The end cover inlet hole is connected to the casing flow channel, while the end cover outlet hole is connected to the casing inlet hole, forming a closed-loop cooling system to ensure the effective use of the cooling medium.
[0013] Optionally, the casing flow channel includes a plurality of branch flow channels arranged axially along the casing portion, and the branch flow channels are interconnected.
[0014] Enhanced heat exchange efficiency: By dividing the main channel into multiple parallel branch channels, the contact area between the cooling medium and the inner surface of the casing can be increased, thereby improving the heat exchange efficiency. More contact area means more heat can be taken away from the inside of the casing.
[0015] Uniform distribution of cooling medium: The design of the diverter channel helps to evenly distribute the cooling medium, ensuring that all parts inside the casing can be effectively cooled and avoiding local overheating.
[0016] Optimize fluid dynamics: Axially arranged flow channels can optimize the flow path of the cooling medium, reduce fluid resistance, increase flow rate, and thus improve cooling efficiency. In addition, the interconnection between the flow channels can avoid dead zones and ensure uniform temperature throughout the housing.
[0017] Optionally, the branch channels are evenly distributed along the circumference of the casing portion.
[0018] Balanced cooling: The circumferentially evenly distributed diverter channels can ensure the uniform distribution of the cooling medium (such as water, oil or gas) around the casing, thereby achieving balanced heat transfer, preventing local overheating, and maintaining a uniform temperature of the entire casing.
[0019] Improved efficiency: Since the cooling medium can cover the inner surface of the casing more evenly, the heat exchange efficiency can be improved, making the cooling system work more efficiently.
[0020] Structural stability: Evenly distributed runners can provide more uniform internal support, which helps to improve the overall structural stability of the casing and reduce the risk of deformation caused by uneven local force.
[0021] Optionally, the inner wall of the branch channel is a thin-walled structure.
[0022] Increased heat exchange area: Thin-walled structures can increase the contact area between the cooling medium and the housing material, thereby improving heat exchange efficiency. Thinner wall thickness means that heat can be transferred from the housing to the cooling medium faster, speeding up cooling.
[0023] Reduce thermal resistance: Thermal resistance refers to the resistance that prevents heat from being transferred from one object to another. Thin-walled structures reduce material thickness, thereby reducing thermal resistance and making it easier for heat to be transferred from the heat source to the cooling medium.
[0024] Reduced weight: Thin-wall design can reduce the amount of material used, thereby reducing the weight of the entire integrated cooling end cover housing. This is especially important for applications such as mobile devices and electric vehicles where weight control is strictly required.
[0025] Optionally, the end cover flow channel is distributed throughout the area of the end cover part.
[0026] Increased heat exchange area: The flow channel is spread over the area of the end cover, increasing the contact area between the cooling medium and the end cover material, thereby improving the heat transfer efficiency. This means that more heat can be taken away by the cooling medium, improving the overall cooling effect.
[0027] Uniform heat dissipation: By distributing the flow channels across the entire inner surface of the end cap, it is possible to ensure that heat is removed evenly from all areas of the end cap, preventing local overheating and maintaining temperature uniformity across the end cap, which is critical for protecting sensitive electronic or mechanical components.
[0028] Optimize fluid dynamics: The extensive flow channel design can optimize the flow path of the fluid in the end cover, reduce fluid resistance, ensure that the cooling medium can flow smoothly through every part that needs cooling, and improve the overall efficiency of the cooling system.
[0029] Optionally, the end cover flow channel is stacked inwardly along the outer edge of the end cover part to form a spiral or semi-spiral structure.
[0030] Increase heat exchange area: The spiral or semi-spiral flow channel design can significantly increase the contact area between the cooling medium and the end cover material, thereby improving the heat exchange efficiency. This design allows the cooling medium to flow through a longer path, ensuring that more heat is effectively transferred.
[0031] Uniform heat dissipation: The spiral structure helps to evenly distribute the cooling medium over the entire end cap surface, avoiding local overheating and ensuring uniform temperature distribution on the end cap, which is very important for maintaining the stable operation of electronic equipment or mechanical components.
[0032] Fluid dynamics optimization: The spiral flow channel can generate natural centrifugal force to help guide the flow of cooling medium, reduce turbulence, reduce fluid resistance, and improve fluid flow efficiency, thereby improving overall cooling performance.
[0033] Slow down the flow rate: The spiral or semi-spiral structure can naturally slow down the flow rate of the cooling medium and prolong its residence time inside the end cover, so that the heat has more time to transfer from the end cover to the cooling medium, improving the cooling efficiency.
[0034] Space Utilization: This design can make full use of the space inside the end cap, achieving efficient thermal management even in limited space.
[0035] Optionally, corresponding protrusions are provided on the peripheral sides of the end cover part and the casing part.
[0036] The protrusions can serve as positioning points to ensure that the end cap and the housing are accurately aligned during assembly to avoid any positional deviation, which is critical to ensuring the performance and sealing of the cooling system. Appropriate protrusion design can simplify the assembly and disassembly process, especially in systems that require frequent maintenance or repair, where quick connection and disconnection can save a lot of time and labor.
[0037] Optionally, the outer surfaces of the end cover portion and the casing portion are provided with rounded corner structures.
[0038] Rounded corners can effectively disperse stress and avoid stress concentration at the edge of the casing or end cover, thereby improving the strength and durability of the overall structure and reducing the possibility of cracks. Rounded corner structures can reduce sharp edges, avoid accidental scratches or cuts during operation or maintenance, and improve the safety of the working environment.
[0039] Beneficial Effects
[0040] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:
[0041] The technical solution provided by the utility model is that the end cover part and the casing part are manufactured through integrated molding, which reduces the thermal resistance at the interface. The casing flow channel and the end cover flow channel are spread throughout the casing and the end cover, which increases the heat exchange area and improves the heat dissipation effect. The design of the end cover part improves the heat dissipation effect of the end winding of the motor, making the overall heat dissipation more uniform. BRIEF DESCRIPTION OF THE DRAWINGS
[0042] Figure 1 A schematic diagram of the structure of an integrated heat dissipation end cover housing proposed in an embodiment of the utility model Figure 1 ;
[0043] Figure 2 A schematic diagram of the structure of an integrated heat dissipation end cover housing proposed in an embodiment of the utility model Figure 2 ;
[0044] Figure 3A schematic cross-sectional view of a housing portion of an integrated heat dissipation end cover housing proposed in an embodiment of the utility model;
[0045] Figure 4 A schematic diagram of the connection structure between the end cover part and the casing part of an integrated heat dissipation end cover casing proposed in an embodiment of the utility model;
[0046] Figure 5 A schematic diagram of an end cover flow channel of an integrated heat dissipation end cover housing proposed in an embodiment of the utility model;
[0047] 1. Casing part; 2. End cover part; 3. Inlet; 4. Outlet; 5. Casing flow channel; 6. Casing outlet hole; 7. End cover inlet hole; 8. End cover outlet hole; 9. Casing inlet hole; 10. End cover flow channel. DETAILED DESCRIPTION
[0048] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments.
[0049] Example
[0050] Combined with Figure 1-2 An integrated heat dissipation end cover housing comprises an end cover part 2 and a housing part 1 which are integrally formed, an inlet 3 and an outlet 4 are openings and channels cut out on the entire structure of the end cover housing, and the end cover part 2 and the housing part 1 can be fixed by welding or integrally formed by a mold. The housing part 1 is provided with an inlet 3 and an outlet 4. The coolant enters at the inlet 3 and flows out at the outlet 4.
[0051] Combined with Figure 3 The inlet 3 is connected to the casing flow channel 5 that is distributed throughout the casing part 1. The casing flow channel 5 includes a plurality of branch channels arranged along the axial direction of the casing part 1, and the branch channels are connected to each other. The branch channels are evenly distributed along the circumference of the casing part 1. The inner wall of the branch channel is a thin-walled structure. The cross-sectional shape of the branch channel is an arc-shaped waist-shaped hole, and the arc is a shape that matches the circumference of the casing part 1, which increases the space occupied by the branch channel, thereby increasing the flow rate of the coolant circulation and improving the heat dissipation effect. The corners of the waist-shaped hole are rounded structures to improve fluid dynamics, so that the coolant flows more smoothly in the branch channel and reduces the formation of vortices.
[0052] Combined with Figure 4, the inlet 3 is connected to the end cover inlet hole 7 leading to the end cover part 2, the end cover flow channel 10 is provided with an end cover outlet hole 8, the end cover outlet hole 8 is connected to the casing inlet hole 9, and the casing flow channel 5 and the casing inlet hole 9 are connected to the outlet 4. The circumferential sides of the end cover part 2 and the casing part 1 are provided with corresponding protrusions, and the protrusions are semi-cylindrical structures arranged along the axial direction of the casing part 1. The outer surfaces of the end cover part 2 and the casing part 1 are provided with fillet structures. In high-strength applications, a larger fillet radius may be required to further disperse stress; in applications with strict requirements on space dimensions, it may be necessary to minimize the size of the fillet to save space.
[0053] Combined with Figure 5 , an end cap flow channel 10 connected to the end cap inlet 7 is provided in the end cap part 2, and the end cap flow channel 10 is stacked inwardly along the outer edge of the end cap part 2 to form a spiral or semi-spiral structure. The end cap flow channel 10 is distributed throughout the area of the end cap part 2. The end cap flow channel 10 is a flat flow channel adapted to the end cap part 2, and its width is 1 / 6 of the radius of the end cap. In this embodiment, the end cap flow channel 10 is first distributed along the semicircle of the end cap, and then turns back to distribute along the previous semicircle flow channel to the starting point, and repeatedly stacks and distributes to cover half of the area of the end cap, and then repeatedly stacks and distributes from the center of the end cap to the outside to cover the other half of the area of the end cap, and finally connects to the end cap outlet 8.
[0054] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.
Claims
1. An integrated heat dissipation end cover housing, characterized in that: The invention comprises an end cover part and a casing part which are integrally formed, wherein the casing part is provided with an inlet and an outlet, wherein the inlet is connected to a casing flow channel which is spread over the casing part and an end cover inlet hole which leads to the end cover part, wherein an end cover flow channel which is connected to the end cover inlet hole is provided in the end cover part, wherein an end cover flow channel is provided with an end cover outlet hole which is connected to the casing inlet hole, and wherein the casing flow channel and the casing inlet hole are connected to the outlet.
2. The integrated heat dissipation end cover housing according to claim 1, characterized in that: The casing flow channel includes a plurality of branch flow channels arranged along the axial direction of the casing portion, and the branch flow channels are interconnected.
3. The integrated heat dissipation end cover housing according to claim 2, characterized in that: The branch channels are evenly distributed along the circumference of the casing portion.
4. An integrated heat dissipation end cover housing according to claim 2 or 3, characterized in that: The inner wall of the branch channel is a thin-wall structure.
5. The integrated heat dissipation end cover housing according to claim 1, characterized in that: The end cover flow channel is distributed over the area of the end cover portion.
6. The integrated heat dissipation end cover housing according to claim 5, characterized in that: The end cover flow channel is stacked inwardly along the outer edge of the end cover part to form a spiral or semi-spiral structure.
7. The integrated heat dissipation end cover housing according to claim 1, characterized in that: The peripheral sides of the end cover part and the housing part are provided with corresponding protrusions.
8. The integrated heat dissipation end cover housing according to claim 7, characterized in that: The outer surfaces of the end cover part and the casing part are provided with rounded corner structures.