A new dual liquid cooling motor casing

Abstract

The utility model relates to double liquid cooling motor technical field, and disclose a novel double liquid cooling motor casing, including outer tube and intermediate cylinder, the intermediate cylinder is installed in the inside of outer tube, the inside installation of intermediate cylinder has the inner tube, the oil guide groove body is set up in the inner chamber formed by outer tube and intermediate cylinder, the inner chamber formed by intermediate cylinder and inner tube is provided with the water guide groove body, the utility model discloses through the oil guide groove body between outer tube and intermediate cylinder, the water guide groove body between intermediate cylinder and inner tube is provided, can realize double liquid cooling, effectively promotes motor heat dissipation efficiency, guarantees motor stable operation, and the design of two end mounting rings is ingenious, and the first sealing ring of the side close to outer tube and outer tube inner wall recess fit, and the second sealing ring of the side close to intermediate cylinder further enhances the sealing property, can effectively prevent the leakage of cooling liquid, avoids the motor failure and the security hidden danger caused by leakage, prolongs the service life of motor.

Description

Technical Field

[0001] This utility model relates to the field of dual liquid-cooled motor technology, specifically a novel dual liquid-cooled motor housing. Background Technology

[0002] Dual-liquid-cooled motors are a type of motor technology that uses two different liquid media to cool the motor. It typically combines water cooling and oil cooling. Water's high specific heat capacity quickly removes heat from the motor's main heat-generating parts, while oil lubricates and assists in cooling other critical areas of the motor. This design can more efficiently control motor temperature, improve heat dissipation, extend motor life, and enhance operational stability and reliability. It is suitable for high-power, high-load motor applications or those with stringent heat dissipation requirements.

[0003] In the field of motor technology, with the continuous improvement of motor power and the increasing diversification of application scenarios, the heat generated by motors during operation has become increasingly prominent. Excessive temperature not only affects the performance and efficiency of motors, but may also shorten the service life of motors and even cause safety accidents. However, existing motor cooling methods usually adopt air cooling and single liquid cooling. Although air cooling is simple in structure and low in cost, its cooling effect is often difficult to meet the requirements in high-power motor applications, especially under harsh conditions such as high temperature and high load. Air cooling cannot remove the heat generated by the motor in a timely and effective manner, resulting in excessively high motor temperature. At the same time, liquid cooling can usually only cool some of the heat-generating areas of the motor, making it difficult to achieve a comprehensive and uniform cooling effect. Utility Model Content

[0004] The purpose of this invention is to provide a novel dual-liquid-cooled motor housing to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel dual-liquid-cooled motor housing, comprising an outer cylinder and an intermediate cylinder, wherein the intermediate cylinder is installed inside the outer cylinder, and an inner cylinder is installed inside the intermediate cylinder;

[0006] An oil guide groove is provided in the inner cavity formed by the outer cylinder and the intermediate cylinder, and a water guide groove is provided in the inner cavity formed by the intermediate cylinder and the inner cylinder.

[0007] Two sets of mounting rings are respectively installed at both ends of the outer cylinder. A first sealing ring is provided on the side of the mounting ring near the outer cylinder. A groove is provided on the inner wall of the outer cylinder, and the inner wall of the groove fits with the outer side of the first sealing ring. A second sealing ring is provided on the side of the mounting ring near the middle cylinder.

[0008] Preferably, the inner wall of the mounting ring is threaded with six sets of first fixing bolts, and the inner wall of the intermediate cylinder is provided with six sets of threaded holes, and the outer side of the first fixing bolts is threadedly connected to the inner wall of the six sets of threaded holes.

[0009] Preferably, the outer side of the inner cylinder is provided with two sets of first sealing rings, and the inner wall of the intermediate cylinder is provided with two sets of annular grooves, and the inner wall of the annular grooves fits into the outer side of the first sealing rings.

[0010] Preferably, six sets of mounting blocks are fixed to the outer side of the inner cylinder, and the inner wall of the mounting blocks is threaded with a second fixing bolt, and the outer side of the second fixing bolt is threaded to the inner wall of the intermediate cylinder.

[0011] Preferably, the outer cylinder is connected to an oil inlet and an oil outlet on its outer side, and the oil inlet and oil outlet are designed to be symmetrically arranged vertically.

[0012] Preferably, the inner wall of the inner cylinder is connected to a water inlet and a water outlet, and the water inlet and the water outlet are designed to be symmetrically positioned vertically.

[0013] Preferably, the inner wall of the oil guiding groove is provided with a plurality of oil guiding ports, and the inner wall of the water guiding groove is provided with a plurality of water guiding ports.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention achieves dual-liquid cooling by setting an oil guide groove between the outer cylinder and the middle cylinder, and a water guide groove between the middle cylinder and the inner cylinder. This effectively improves the heat dissipation efficiency of the motor and ensures stable motor operation. The cleverly designed mounting rings at both ends have a first sealing ring on the side closer to the outer cylinder that fits into the groove on the inner wall of the outer cylinder, and a second sealing ring on the side closer to the middle cylinder that further enhances the sealing performance. This effectively prevents coolant leakage, avoids motor failure and safety hazards caused by leakage, and extends the service life of the motor. Attached Figure Description

[0016] Figure 1 A schematic diagram of a preferred embodiment of the novel dual-liquid-cooled motor housing provided by this utility model;

[0017] Figure 2 A schematic diagram of the outer cylinder structure provided by this utility model;

[0018] Figure 3 A schematic diagram of the intermediate cylinder structure provided by this utility model;

[0019] Figure 4 A schematic diagram of the inner cylinder structure provided by this utility model.

[0020] In the diagram: 1. Outer cylinder; 2. Intermediate cylinder; 3. Inner cylinder; 4. Oil guide groove; 5. Water guide groove; 6. Mounting ring; 7. First sealing ring; 8. Groove; 9. Second sealing ring; 10. First fixing bolt; 11. Threaded hole; 12. First sealing ring; 13. Annular groove; 14. Mounting block; 15. Second fixing bolt; 16. Oil inlet; 17. Oil outlet; 18. Water inlet; 19. Water outlet; 20. Oil guide port; 21. Water guide port. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 As shown, a novel dual-liquid-cooled motor housing includes an outer cylinder 1 and an intermediate cylinder 2. The intermediate cylinder 2 is installed inside the outer cylinder 1, and an inner cylinder 3 is installed inside the intermediate cylinder 2. The outer cylinder 1, as the outermost structure of the entire housing, provides basic support and protection for the internal components. It also forms an inner cavity with the intermediate cylinder 2 to accommodate the oil guide groove 4 and cooling oil. The intermediate cylinder 2, installed inside the outer cylinder 1, serves as a separator, forming a space with the outer cylinder 1 to accommodate the oil guide groove 4 and cooling oil, and with the inner cylinder 3 to accommodate the water guide groove 5 and cooling water, thus achieving liquid separation in the dual-liquid cooling system. The inner cylinder 3, installed inside the intermediate cylinder 2, is the component that directly contacts the motor. Its interior is used to install components such as the motor stator, and it forms a space with the intermediate cylinder 2 to accommodate the water guide groove 5 and cooling water, thereby achieving motor cooling.

[0023] An oil guide groove 4 is set in the inner cavity formed by the outer cylinder 1 and the intermediate cylinder 2. A water guide groove 5 is set in the inner cavity formed by the intermediate cylinder 2 and the inner cylinder 3. The oil guide groove 4 is set in the inner cavity formed by the outer cylinder 1 and the intermediate cylinder 2 to guide the cooling oil to flow in a specific path, so that the cooling oil can fully absorb the heat generated by the motor and improve the cooling efficiency. Several sets of oil guide ports 20 are opened on the inner wall of the oil guide groove 4 to facilitate the uniform distribution and flow of the cooling oil in the oil guide groove 4 and enhance the cooling effect. The water guide groove 5 is set in the inner cavity formed by the intermediate cylinder 2 and the inner cylinder 3 to guide the cooling water to flow in a specific path to cool the motor. Several sets of water guide ports 21 are opened on the inner wall of the water guide groove 5 to help the cooling water to be evenly distributed and flow in the water guide groove 5 and improve the cooling performance.

[0024] Two sets of mounting rings 6 are respectively installed at both ends of the outer cylinder 1. The two sets of mounting rings 6 are respectively installed at both ends of the outer cylinder 1, and serve to connect and fix components such as the outer cylinder 1, intermediate cylinder 2, and inner cylinder 3, ensuring the stability and sealing of the entire casing structure. A first sealing ring 7 is provided on the side of the mounting ring 6 near the outer cylinder 1. A groove 8 is opened on the inner wall of the outer cylinder 1, and the inner wall of the groove 8 fits with the outer side of the first sealing ring 7. A second sealing ring 9 is provided on the side of the mounting ring 6 near the intermediate cylinder 2. The first sealing ring 7 is located on the side of the mounting ring 6 near the outer cylinder 1 and fits with the groove 8 opened on the inner wall of the outer cylinder 1, which serves to seal and prevent the cooling oil from leaking from the gap between the outer cylinder 1 and the mounting ring 6. The groove 8 is opened on the inner wall of the outer cylinder 1 and fits with the outer side of the first sealing ring 7, providing an installation position for the first sealing ring 7 and ensuring the sealing effect. The second sealing ring 9 is located on the side of the mounting ring 6 near the intermediate cylinder 2 to enhance the sealing between the mounting ring 6 and the intermediate cylinder 2 and prevent the cooling oil and cooling water from leaking at the joint.

[0025] The inner wall of the mounting ring 6 is threaded with six sets of first fixing bolts 10. The inner wall of the intermediate cylinder 2 has six sets of threaded holes 11, and the outer side of the first fixing bolts 10 is threaded to the inner wall of the six sets of threaded holes 11. The mounting ring 6 is threaded with six sets of first fixing bolts 10, and the inner wall of the intermediate cylinder 2 has six sets of threaded holes 11. The first fixing bolts 10 are threaded to the threaded holes 11 to fix the mounting ring 6 and the intermediate cylinder 2 together, ensuring a firm connection between the outer cylinder 1, the intermediate cylinder 2 and the mounting ring 6; the outer side of the inner cylinder 3 is provided with two sets of first fixing bolts 10. A sealing ring 12 is provided. The inner wall of the intermediate cylinder 2 is provided with two sets of annular grooves 13, and the inner wall of the annular grooves 13 fits with the outer side of the first sealing ring 12. The first sealing ring 12 is located on the outer side of the inner cylinder 3 and fits with the annular grooves 13 on the inner wall of the intermediate cylinder 2 to provide a seal and prevent cooling water from leaking from the gap between the inner cylinder 3 and the intermediate cylinder 2. The annular grooves 13 are located on the inner wall of the intermediate cylinder 2 and fit with the outer side of the first sealing ring 12 to provide an installation position for the first sealing ring 12 and enhance the sealing between the inner cylinder 3 and the intermediate cylinder 2.

[0026] Six sets of mounting blocks 14 are fixed to the outer side of the inner cylinder 3. The inner wall of the mounting blocks 14 is threaded with a second fixing bolt 15, and the outer side of the second fixing bolt 15 is threaded with the inner wall of the intermediate cylinder 2. The mounting blocks 14 are fixed to the outer side of the inner cylinder 3 to provide an installation position for the second fixing bolt 15. The inner cylinder 3 and the intermediate cylinder 2 are fixedly connected by the second fixing bolt 15, ensuring the stability of the inner cylinder 3 inside the intermediate cylinder 2. The inner walls of the six sets of mounting blocks 14 fixed to the outer side of the inner cylinder 3 are threaded with the second fixing bolt 15, and the second fixing bolt 15 is threaded with the inner wall of the intermediate cylinder 2, fixing the inner cylinder 3 and the intermediate cylinder 2 together, ensuring the stability of the entire casing structure.

[0027] The outer cylinder 1 is connected to an oil inlet 16 and an oil outlet 17 on its outer side, and the oil inlet 16 and the oil outlet 17 are designed symmetrically from top to bottom. The inner wall of the inner cylinder 3 is connected to a water inlet 18 and a water outlet 19, and the water inlet 18 and the water outlet 19 are designed symmetrically from top to bottom. The oil inlet 16 is connected to the outer side of the outer cylinder 1 and is used to inject cooling oil into the oil guide tank 4 to ensure that there is enough cooling oil in the cooling system for circulation and cooling. The oil outlet 17 is connected to the outer side of the outer cylinder 1 and is used to discharge the cooling oil in the oil guide tank 4, which facilitates the replacement and maintenance of the cooling oil. The water inlet 18 is connected to the inner wall of the inner cylinder 3 and is used to inject cooling water into the water guide tank 5 to provide a water source for motor cooling. The water outlet 19 is connected to the inner wall of the inner cylinder 3 and is used to discharge the cooling water in the water guide tank 5 to realize the recycling or discharge of cooling water.

[0028] The inner wall of the oil guide tank 4 is provided with several sets of oil guide ports 20, and the inner wall of the water guide tank 5 is provided with several sets of water guide ports 21. The several sets of oil guide ports 20 on the inner wall of the oil guide tank 4 facilitate the uniform distribution and flow of cooling oil in the oil guide tank 4, thereby enhancing the cooling effect. The several sets of water guide ports 21 on the inner wall of the water guide tank 5 help the cooling water to be evenly distributed and flow in the water guide tank 5, thereby improving the cooling performance.

[0029] Working principle: When the motor housing is in use, an oil guide groove 4 is provided in the inner cavity formed by the outer cylinder 1 and the intermediate cylinder 2. Several oil guide ports 20 are opened on the inner wall of the oil guide groove 4. Cooling oil is injected into the inner cavity formed by the outer cylinder 1 and the intermediate cylinder 2 through the oil injection nozzle 16, and evenly distributed through the oil guide ports 20, absorbing the heat generated by the motor housing. Subsequently, the heated cooling oil is discharged through the oil drain nozzle 17, completing one oil circulation cooling cycle. Simultaneously, a water guide groove 5 is provided in the inner cavity formed by the intermediate cylinder 2 and the inner cylinder 3, guiding water... The inner wall of the tank 5 has several water guide ports 21. Cooling water is injected into the inner cavity formed by the intermediate cylinder 2 and the inner cylinder 3 through the water inlet 18, and is evenly distributed through the water guide ports 21 to absorb the heat generated inside the motor. Then, the heated cooling water is discharged through the drain nozzle 19, completing one water circulation cooling cycle. Since the mounting rings 6 are respectively installed at both ends of the outer cylinder 1, a first sealing ring 7 is set on the side closer to the outer cylinder 1, which fits into the groove 8 on the inner wall of the outer cylinder 1 to achieve a seal between the outer cylinder 1 and the mounting ring 6. The mounting ring 6 is close to the intermediate cylinder. A second sealing ring 9 is provided on one side of the inner cylinder 2 to enhance the sealing effect. Six sets of first fixing bolts 10 are threadedly connected to the inner wall of the mounting ring 6, which are threadedly connected to the six sets of threaded holes 11 on the inner wall of the intermediate cylinder 2 to fix the mounting ring 6 to the intermediate cylinder 2. Two sets of first sealing rings 12 on the outer side of the inner cylinder 3 fit into two sets of annular grooves 13 on the inner wall of the intermediate cylinder 2 to ensure the sealing between the intermediate cylinder 2 and the inner cylinder 3. At the same time, six sets of mounting blocks 14 on the outer side of the inner cylinder 3 are threadedly connected to the inner wall of the intermediate cylinder 2 through second fixing bolts 15 to fix the inner cylinder 3 to the intermediate cylinder 2. Since the outer cylinder 1, intermediate cylinder 2 and inner cylinder 3 adopt a detachable installation method, the oil circulation cooling device and the water circulation cooling device of the motor housing can be disassembled separately, which facilitates the maintenance of the oil circulation cooling device and the water circulation cooling device. At the same time, since the motor housing can quickly absorb the heat generated by the motor housing and the interior through the dual action of oil circulation cooling and water circulation cooling, it can greatly improve the cooling efficiency, reduce the motor operating temperature and extend the service life of the motor.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A novel dual-liquid-cooled motor housing, comprising an outer cylinder (1), characterized in that, Also includes: An intermediate cylinder (2) is installed inside the outer cylinder (1), and an inner cylinder (3) is installed inside the intermediate cylinder (2). An oil guide groove (4) is provided in the inner cavity formed by the outer cylinder (1) and the intermediate cylinder (2), and a water guide groove (5) is provided in the inner cavity formed by the intermediate cylinder (2) and the inner cylinder (3). Two sets of mounting rings (6) are respectively installed at both ends of the outer cylinder (1). The mounting ring (6) is provided with a first sealing ring (7) on the side near the outer cylinder (1). The inner wall of the outer cylinder (1) is provided with a groove (8), and the inner wall of the groove (8) fits with the outer side of the first sealing ring (7). The mounting ring (6) is provided with a second sealing ring (9) on the side near the middle cylinder (2).

2. The novel dual-liquid-cooled motor housing according to claim 1, characterized in that: The inner wall of the mounting ring (6) is threaded with six sets of first fixing bolts (10), and the inner wall of the intermediate cylinder (2) is provided with six sets of threaded holes (11), and the outer side of the first fixing bolts (10) is threadedly connected to the inner wall of the six sets of threaded holes (11).

3. The novel dual-liquid-cooled motor housing according to claim 1, characterized in that: The inner cylinder (3) is provided with two sets of first sealing rings (12) on its outer side, and the inner wall of the intermediate cylinder (2) is provided with two sets of annular grooves (13), and the inner wall of the annular grooves (13) fits into the outer side of the first sealing rings (12).

4. The novel dual-liquid-cooled motor housing according to claim 1, characterized in that: The outer side of the inner cylinder (3) is fixed with six sets of mounting blocks (14), and the inner wall of the mounting block (14) is threaded with a second fixing bolt (15), and the outer side of the second fixing bolt (15) is threaded with the inner wall of the intermediate cylinder (2).

5. A novel dual-liquid-cooled motor housing according to claim 1, characterized in that: The outer cylinder (1) is connected to an oil inlet (16) and an oil outlet (17) on its outer side, and the oil inlet (16) and the oil outlet (17) are designed to be symmetrical.

6. A novel dual-liquid-cooled motor housing according to claim 1, characterized in that: The inner wall of the inner cylinder (3) is connected to a water inlet (18) and a drain outlet (19), and the water inlet (18) and the drain outlet (19) are designed to be symmetrical.

7. A novel dual-liquid-cooled motor housing according to claim 1, characterized in that: The inner wall of the oil guide tank (4) is provided with several sets of oil guide ports (20), and the inner wall of the water guide tank (5) is provided with several sets of water guide ports (21).

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