High-strength aluminum shell for water-cooled electric machine

By introducing a multi-layered reinforcing structure into the water-cooled motor housing, the problem of easy cracking and deformation of the housing under vibration load is solved, achieving high strength and stability of the housing and extending its service life.

CN224684008UActive Publication Date: 2026-08-25JIANGYIN DONGZE ALUMINUM TECH
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Patent Information

Application Number
CN202522105607.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-29
Publication Date
2026-08-25
Estimated Expiration
2035-09-29

AI Technical Summary

Technical Problem

Existing water-cooled motor housings are prone to cracking and deformation in the weak areas of the water-cooling tank under long-term vibration loads or slight external impacts, and the single material and simple structure lead to a decrease in the housing's resistance to deformation.

Method used

It adopts a multi-layered reinforcement structure, including 7075 aluminum alloy reinforcing columns inside the water cooling tank, 2A12 aluminum alloy reinforcing rings and connecting rods on the outside of the shell, combined with 6061 aluminum alloy material of the shell body, to form an overall support and improve the bending and vibration resistance.

Benefits of technology

It significantly improves the stability and service life of the housing, enabling it to withstand the continuous load of motor operation for a long time, avoiding the drawbacks of simply thickening the wall, and meeting the strength requirements of the motor.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a high strength aluminium shell for water -cooled motor, including shell body, reinforcing component, the shell body inside is provided with a plurality of water -cooling groove, reinforcing component includes a plurality of reinforcing ring, a plurality of reinforcing ring outside four around be provided with connecting rod, the water -cooling groove inside is provided with reinforcing column, the utility model: the reinforcing column in the water -cooling groove adopts high strength's 7075 aluminium alloy, directly supports the weak part of water -cooling groove, makes up the intensity loss of slot, prevents the water -cooling groove and appears deformation and cracks, the reinforcing ring of shell outside and the connecting rod of reinforcing component, through annular groove positioning installation, forms the overall support to shell, has strengthened the radial anti -deformation ability and the anti -vibration ability of shell, and reinforcing ring and connecting rod adopt the 2A12 aluminium alloy of fatigue -resistant, can long -term bear motor operating load.
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Description

Technical Field

[0001] This utility model relates to the field of water-cooled motor housing technology, specifically a high-strength aluminum housing for water-cooled motors. Background Technology

[0002] As core power equipment in industrial production and transportation, electric motors generate heat during operation due to electromagnetic induction and mechanical friction. Cooling systems are essential to maintain stable operation, and water-cooled motors, with their high heat dissipation efficiency, are a key choice for high-power applications. The aluminum housing, a core component of water-cooled motors, serves a dual function: firstly, it acts as a mounting platform for core components such as the stator and rotor, providing stable assembly space; secondly, it is a crucial component of the water-cooling system, accommodating the coolant to achieve efficient heat exchange between the motor and the coolant.

[0003] Currently, most water-cooled motor aluminum housings used in the industry require internal water-cooling tanks to accommodate the coolant in order to meet water-cooling requirements. However, these water-cooling tanks compromise the structural integrity of the housing, reduce the effective load-bearing cross section, and decrease the housing's resistance to deformation. Furthermore, most housings use only a single material and have a simple structure, making them prone to cracking and deformation in the weak areas of the water-cooling tanks when subjected to long-term vibration loads or minor external impacts from the motor. Even thickening the walls of some motor housings has not solved the fundamental problem and has only increased weight and cost. Utility Model Content

[0004] The purpose of this utility model is to provide a high-strength aluminum housing for water-cooled motors, in order to solve the problem that most housings mentioned in the background art use only a single material and a simple structure, which makes the housing prone to cracking and deformation in the weak areas of the water-cooling tank when subjected to long-term vibration loads of the motor or slight external impacts.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A high-strength aluminum housing for a water-cooled motor includes a housing body and reinforcing components, wherein the housing body has multiple water-cooling tanks inside.

[0007] The reinforcing assembly includes multiple reinforcing rings, with connecting rods arranged around the outer perimeter of each reinforcing ring, and reinforcing columns arranged inside the water-cooling tank.

[0008] In a preferred embodiment of this utility model, heat dissipation fins are provided on both sides inside the water cooling tank, and the shell body and heat dissipation fins are made of 606 aluminum alloy.

[0009] In a preferred embodiment of this utility model, a water flow channel is provided at the middle position inside the shell body, and the water flow channel connects all the water cooling tanks.

[0010] In a preferred embodiment of this utility model, the reinforcing column connects the inner and outer sides of the water cooling tank, and the reinforcing column is made of 7075 aluminum alloy.

[0011] In a preferred embodiment of the present invention, a plurality of annular grooves are provided on the outer side of the housing body, and the reinforcing ring is mounted on the annular grooves.

[0012] In a preferred embodiment of this utility model, the reinforcing ring and the connecting rod are made of 2A12 aluminum alloy.

[0013] In a preferred embodiment of this utility model, a water inlet and a water outlet are provided at the front of the housing body, the water inlet and the water outlet are connected to the front water cooling tank, and the water inlet and the water outlet are provided with internal threads.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0015] Beneficial effects: The 7075 aluminum alloy reinforcing columns inside the water-cooling tank directly support the weak parts of the tank, compensating for the strength loss caused by the slotting; the 2A12 aluminum alloy reinforcing ring and connecting rod on the outside of the shell form an overall support, improving the bending and vibration resistance. At the same time, the shell body is made of 6061 aluminum alloy with good thermal conductivity. Without affecting heat dissipation, the multiple reinforcing structures work together to avoid the drawbacks of simply thickening the wall. It can withstand the continuous load during motor operation for a long time, significantly improving the stability and service life of the shell and meeting the strength requirements of the motor.

[0016] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 A schematic diagram of the main structure of a high-strength aluminum housing for a water-cooled motor;

[0019] Figure 2 This is a schematic diagram of the top structure of a high-strength aluminum housing for a water-cooled motor.

[0020] Figure 3A schematic diagram of the internal structure of the water-cooling tank in a high-strength aluminum housing for a water-cooled motor;

[0021] Figure 4 This is a schematic diagram of the reinforcing ring structure in a high-strength aluminum housing for a water-cooled motor.

[0022] In the diagram: 1. Shell body; 11. Water cooling tank; 12. Water flow channel; 13. Reinforcing column; 14. Heat dissipation fins; 2. Annular groove; 21. Reinforcing ring; 22. Connecting rod; 3. Water inlet; 31. Water outlet. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0024] Please refer to Figures 1-4 This utility model discloses a high-strength aluminum housing for a water-cooled motor, comprising a housing body 1, which is the housing for the water-cooled motor and serves as the basic carrier of the entire structure, used to accommodate and fix the core components inside the motor. The housing body 1 is provided with multiple water-cooling tanks 11, which are the main structure of the housing and provide space for the flow and heat exchange of coolant. The multiple water-cooling tanks 11 are evenly distributed along the circumference of the housing body 1, which can achieve comprehensive cooling of the housing body 1. A water flow channel 12 is provided at the middle position inside the housing body 1, which connects all the water-cooling tanks 11. Its function is to allow the coolant to flow smoothly between the various water-cooling tanks 11 to form a complete cooling cycle.

[0025] The front of the shell body 1 is provided with a water inlet 3 and a water outlet 31. The water inlet 3 and the water outlet 31 are connected to the front water cooling tank 11. The water inlet 3 is used to connect to external coolant, and the water outlet 31 is used to discharge the coolant that has completed heat exchange, so as to realize the circulation and replacement of coolant. The water inlet 3 and the water outlet 31 are provided with internal threads 32, which facilitates connection with external water pipes through threads.

[0026] The water-cooled tank 11 has heat dissipation fins 14 on both sides inside. The heat dissipation fins 14 are integrally formed with the shell body 1, which can increase the contact area between the coolant and the shell body 1, improve the heat exchange efficiency, and quickly transfer the heat on the shell body 1 to the coolant. The shell body 1 and the heat dissipation fins 14 are made of 6061 aluminum alloy. 6061 aluminum alloy has good thermal conductivity and certain structural strength, which can not only meet the heat dissipation requirements, but also provide basic support for the shell body 1.

[0027] The water-cooling tank 11 is equipped with a reinforcing column 13 inside. The reinforcing column 13 connects the inner and outer sides of the water-cooling tank 11. One end of the column is fixedly connected to the inner side wall of the water-cooling tank 11, and the other end is fixedly connected to the outer side wall, forming a support for the water-cooling tank 11. The reinforcing column 13 is made of 7075 aluminum alloy. 7075 aluminum alloy is a high-strength aluminum alloy with a strength much higher than that of 6061 aluminum alloy. It can effectively compensate for the problem of local strength reduction of the shell body 1 caused by the opening of the water-cooling tank 11, and prevent the water-cooling tank 11 from deforming or cracking during use.

[0028] The housing also includes a reinforcing component, which is used to further enhance the overall strength of the housing body 1. The reinforcing component includes multiple reinforcing rings 21 and multiple annular grooves 2 are provided on the outer side of the housing body 1. The annular grooves 2 are evenly distributed along the axial direction of the housing body 1. The reinforcing rings 21 are fixedly installed on the annular grooves 2, which can constrain and support the radial direction of the housing body 1 and enhance the ability of the housing body 1 to resist radial deformation.

[0029] Multiple reinforcing rings 21 are surrounded by connecting rods 22, which are evenly distributed along the circumference of the reinforcing rings 21. The connecting rods 22 connect multiple reinforcing rings 21 in series to form an integral structure. This design not only improves the stability of a single reinforcing ring 21, but also makes the supporting force of the reinforcing assembly on the housing body 1 evenly distributed along the axial direction, further enhancing the overall deformation resistance of the housing body 1. Furthermore, the reinforcing rings 21 and connecting rods 22 are made of 2A12 aluminum alloy. 2A12 aluminum alloy has high strength and good fatigue resistance, and can withstand the vibration load generated during motor operation, ensuring that the reinforcing assembly can function stably for a long time.

[0030] The working principle of this utility model is as follows: An external coolant pipe is connected to the inlet 3 via an internal thread 32, and an external outlet pipe is connected to the outlet 31 via an internal thread 32. Subsequently, the external coolant enters the water-cooling tank 11 through the inlet 3. Under the action of the water flow channel 12, the coolant flows sequentially into each water-cooling tank 11, forming a comprehensive cooling cycle. During the coolant flow, the heat on the casing 1 is transferred to the inner wall of the water-cooling tank 11 and the heat dissipation fins 14. The heat dissipation fins 14 increase the contact area with the coolant, allowing heat to be quickly transferred to the coolant, completing heat exchange. The coolant, carrying heat, is discharged through the outlet 31 and cooled in the external cooling system. Then, it re-enters the housing through the inlet 3 for continuous cooling. Throughout the operation, the reinforcing column 13 inside the water-cooling tank 11 supports the water-cooling tank 11, resisting the force caused by the pressure of the coolant and the deformation of the housing body 1, and preventing the water-cooling tank 11 from deforming. The reinforcing ring 21 on the outside of the housing body 1 is fixed to the housing body 1 through the annular groove 2, constraining the radial direction of the housing body 1. The connecting rod 22 connects multiple reinforcing rings 21 into a whole, improving the stability of the reinforcing components and jointly resisting the vibration load and external impact during motor operation, ensuring the overall structural stability of the housing.

[0031] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A high-strength aluminum housing for a water-cooled motor, characterized in that: It includes a housing body (1) and reinforcing components, wherein the housing body (1) is provided with multiple water-cooling tanks (11); The reinforcing assembly includes multiple reinforcing rings (21), with connecting rods (22) arranged around the outer periphery of the multiple reinforcing rings (21), and reinforcing columns (13) arranged inside the water-cooling tank (11).

2. The high-strength aluminum housing for a water-cooled motor according to claim 1, characterized in that, The water-cooled tank (11) has heat dissipation fins (14) on both sides inside, and the shell body (1) and heat dissipation fins (14) are made of 6061 aluminum alloy.

3. The high-strength aluminum housing for a water-cooled motor according to claim 1, characterized in that, A water flow channel (12) is provided at the middle position inside the shell body (1), and the water flow channel (12) connects all water cooling tanks (11).

4. The high-strength aluminum housing for a water-cooled motor according to claim 1, characterized in that, The reinforcing column (13) connects the inner and outer sides of the water cooling tank (11), and the reinforcing column (13) is made of 7075 aluminum alloy.

5. A high-strength aluminum housing for a water-cooled motor according to claim 1, characterized in that, The outer side of the housing body (1) is provided with a plurality of annular grooves (2), and the reinforcing ring (21) is installed on the annular grooves (2).

6. A high-strength aluminum housing for a water-cooled motor according to claim 1, characterized in that, The reinforcing ring (21) and the connecting rod (22) are made of 2A12 aluminum alloy.

7. A high-strength aluminum housing for a water-cooled motor according to claim 1, characterized in that, The shell body (1) is provided with an inlet (3) and an outlet (31) at the front. The inlet (3) and outlet (31) are connected to the front water cooling tank (11). The inlet (3) and outlet (31) are provided with internal threads (32).