Leak-proof dual liquid cooling motor casing

Abstract

This utility model relates to the field of motor housing technology and discloses a leak-proof dual-liquid-cooled motor housing; it includes an inner shell and two sets of outer shells, both sets of outer shells being located on the outside of the inner shell; a rubber plug is embedded in the inner wall of the inner shell, and a first sealing gasket is installed on the inner wall of the rubber plug. This utility model, by setting a rubber plug, a first sealing gasket, a second sealing gasket, and a second sealing gasket, can easily improve the sealing performance of the connecting pipe and the conveying pipe. The high sealing design can prevent coolant leakage, ensure a constant medium flow rate in the inner shell flow channel, and at the same time, the sealing structure can prevent external dust and water vapor from seeping into the cooling pipe, preventing flow channel blockage or medium deterioration, thereby improving the practicality of the equipment and increasing working efficiency.

Description

Technical Field

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

[0002] The dual-liquid-cooled motor housing uses two types of coolant and achieves staged heat dissipation through an independent flow channel design.

[0003] When using traditional single-liquid cooling (such as water or oil), the medium absorbs heat and its temperature rises rapidly, resulting in a significant decrease in heat dissipation capacity. This is especially problematic in high-power motors, where concentrated heat can easily lead to localized overheating. Therefore, dual-liquid cooling is required for the motor housing. However, traditional pipes used to transport the cooling liquid have poor sealing performance at the connection points between the inner and outer shells, which may cause coolant leakage during transport. Coolant leakage reduces the effective medium content in the system, leading to insufficient coolant flow in the inner shell channel, decreased heat absorption capacity, and a rapid increase in motor temperature. This can potentially cause winding overheating, insulation aging, or even short-circuit faults. Utility Model Content

[0004] The purpose of this invention is to provide a leak-proof 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 leak-proof dual-liquid-cooled motor housing, comprising an inner shell and two sets of outer shells, both sets of outer shells being located outside the inner shell;

[0006] A rubber stopper is embedded in the inner wall of the inner shell, and a first sealing gasket is installed on the inner wall of the rubber stopper, and a first sealing stopper is installed on the inner wall of the first sealing gasket.

[0007] The second sealing gasket is located on the outer side of the inner shell, and a second sealing plug is inserted into the inner wall of the second sealing gasket.

[0008] Preferably, an annular plate is installed on the inner wall of the outer shell, and multiple sets of fixing bolts are threadedly connected to the inner wall of the annular plate, with the outer side of the fixing bolts threadedly connected to the inner wall of the outer shell.

[0009] Preferably, the inner wall of the inner shell is equipped with a connecting pipe for conveying coolant, and the inner wall of the inner shell has an installation cavity.

[0010] Preferably, the inner wall of the rubber stopper has an installation groove for installing the first sealing gasket.

[0011] Preferably, one end of the second sealing plug is provided with an installation pipe for conveying cooling oil.

[0012] Preferably, one end of the mounting pipe is connected to a delivery pipe for conveying cooling oil, and the delivery pipe has a spiral design.

[0013] Preferably, the inner wall of the mounting tube is provided with a placement groove for installing the second sealing gasket, and the inner wall of the placement groove is completely fitted with the outer side of the second sealing gasket.

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

[0015] This invention improves the sealing performance of the connecting pipe and the conveying pipe by setting a rubber stopper, a first sealing gasket, a first sealing plug, a second sealing gasket, and a second sealing plug. The high sealing design prevents coolant leakage and ensures a constant medium flow rate in the inner cylinder channel. At the same time, the sealing structure prevents external dust and water vapor from seeping into the cooling pipe, preventing channel blockage or medium deterioration, thereby improving the practicality of the equipment and increasing work efficiency. Attached Figure Description

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

[0017] Figure 2 Schematic diagram of the inner shell and outer shell structure provided by this utility model;

[0018] Figure 3 A schematic diagram of the inner shell and the conveying pipe structure provided by this utility model;

[0019] Figure 4 for Figure 3 A magnified structural diagram of point A is shown below;

[0020] Figure 5 for Figure 3 A magnified structural diagram of point B is shown.

[0021] In the diagram: 1. Inner shell; 2. Outer shell; 3. Rubber plug; 4. First sealing gasket; 5. First sealing plug; 6. Second sealing gasket; 7. Second sealing plug; 8. Annular plate; 9. Fixing bolt; 10. Connecting pipe; 11. Mounting cavity; 12. Mounting groove; 13. Mounting pipe; 14. Inlet pipe; 15. Placement groove. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-5 As shown, a leak-proof dual-liquid-cooled motor housing includes an inner shell 1 and two outer shells 2 located on the outer side of the inner shell 1; a rubber plug 3 is embedded in the inner wall of the inner shell 1, and a first sealing gasket 4 is installed on the inner wall of the rubber plug 3, and a first sealing plug 5 is installed on the inner wall of the first sealing gasket 4; a second sealing gasket 6 is located on the outer side of the inner shell 1, and a second sealing plug 7 is inserted into the inner wall of the second sealing gasket 6; the inner shell 1, as the main part of the motor housing, is the mounting base for the internal motor components and provides space for the coolant to be contained and circulated. The outer shells 2 protect the inner shell 1 and the internal motor components, and are also used for installing the flow pipe 14. The rubber plug 3 is embedded in the inner shell. The inner wall serves as a seal and connection, providing a base for subsequent sealing structures and preventing liquid leakage. The first sealing gasket 4 is installed on the inner wall of the rubber plug 3 to enhance the sealing between the rubber plug 3 and related components, preventing coolant leakage from the connection. The first sealing plug 5 is installed on the inner wall of the first sealing gasket 4 to further enhance the sealing effect, ensuring the sealing of the connection and preventing liquid leakage. The second sealing gasket 6 is located on the outer side of the inner shell 1 and cooperates with the second sealing plug 7 to perform a sealing function, preventing coolant leakage. The second sealing plug 7 is inserted into the inner wall of the second sealing gasket 6 and works together with the second sealing gasket 6 to ensure the sealing of the coolant delivery path and prevent coolant leakage.

[0024] An annular plate 8 is installed on the inner wall of the outer casing 2. Multiple sets of fixing bolts 9 are threadedly connected to the inner wall of the annular plate 8, and the outer side of the fixing bolts 9 is threadedly connected to the inner wall of the outer casing 2. The annular plate 8 is set to protect its internal structure, such as the inlet pipe 14 and the connecting pipe 10. The fixing bolts 9 are threadedly connected to the annular plate 8 and the inner wall of the outer casing 2 to fix the outer casing 2 to other components, ensuring the stability and robustness of the motor housing structure.

[0025] The inner wall of the inner shell 1 is equipped with a connecting pipe 10 for transporting coolant, and the inner wall of the inner shell 1 has an installation cavity 11. The connecting pipe 10 is installed on the inner wall of the inner shell 1 for transporting coolant to reduce the temperature of the inner shell 1. It should be noted that both the inner shell 1 and the outer shell 2 are made of aluminum alloy. The installation cavity 11 is opened on the inner wall of the inner shell 1 for installing the connecting pipe 10.

[0026] The inner wall of the rubber stopper 3 is provided with an installation groove 12 for installing the first sealing gasket 4; the installation groove 12 is provided in the inner wall of the rubber stopper 3 for installing the first sealing gasket 4, ensuring the accuracy of the installation position of the first sealing gasket 4 and improving the sealing effect.

[0027] One end of the second sealing plug 7 is provided with an installation pipe 13 for conveying cooling oil; the installation pipe 13 is provided at one end of the second sealing plug 7 for conveying cooling oil, thereby reducing the temperature of the outer shell 2 and thus reducing the temperature of the inner shell 1.

[0028] One end of the mounting pipe 13 is connected to a delivery pipe 14 for conveying cooling oil, and the delivery pipe 14 is designed in a spiral shape. The delivery pipe 14 is connected to one end of the mounting pipe 13 and is designed in a spiral shape to increase the contact area between the cooling oil and the motor assembly, improve the cooling efficiency, and better cool the motor.

[0029] The inner wall of the mounting tube 13 is provided with a placement groove 15 for installing the second sealing gasket 6, and the inner wall of the placement groove 15 is completely in contact with the outer side of the second sealing gasket 6. The placement groove 15 is provided in the inner wall of the mounting tube 13 for installing the second sealing gasket 6, ensuring the accuracy of the installation position of the second sealing gasket 6, improving the sealing effect, and preventing the leakage of cooling oil.

[0030] Working principle: When cooling of the motor housing is required, coolant is first delivered through a connecting pipe 10 installed on the inner wall of the inner shell 1. The connecting pipe 10 is installed in the mounting cavity 11. The coolant flows in the connecting pipe 10. Since the inner shell 1 is made of aluminum alloy, which has good thermal conductivity, the coolant absorbs the heat generated by the motor operation in the inner shell 1, thus lowering the temperature of the inner shell 1 and cooling the motor housing. At the same time, cooling oil is delivered through a mounting pipe 13 located at one end of the second sealing plug 7. The mounting pipe 13 is connected to a spiral-shaped delivery pipe 14. This spiral design increases the cooling capacity. The contact area between the oil and the motor components allows the cooling oil to circulate within the delivery pipe 14, fully absorbing the heat from the outer casing 2 and lowering its temperature. This lowered temperature further reduces the temperature of the inner casing 1 through heat conduction, thereby improving the cooling efficiency of the motor housing. Additionally, the rubber plug 3 is embedded in the inner wall of the inner casing 1, and the first sealing gasket 4 and first sealing plug 5 installed on its inner wall prevent coolant leakage. The second sealing gasket 6 is located on the outer side of the inner casing 1 and cooperates with the second sealing plug 7 inserted into its inner wall to ensure the sealing of the cooling oil delivery path, preventing cooling oil leakage and ensuring stable operation of the cooling system.

[0031] 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.

[0032] 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 double liquid-cooled electric machine housing with leakage protection, comprising an inner housing (1), characterized in that, Also includes: Both sets of outer shells (2) are located outside the inner shell (1); A rubber plug (3) is embedded in the inner wall of the inner shell (1). A first sealing gasket (4) is installed on the inner wall of the rubber plug (3), and a first sealing plug (5) is installed on the inner wall of the first sealing gasket (4). The second sealing gasket (6) is located on the outside of the inner shell (1), and the inner wall of the second sealing gasket (6) is fitted with a second sealing plug (7).

2. The leak-proof dual-liquid-cooled motor housing according to claim 1, characterized in that: The inner wall of the outer shell (2) is fitted with an annular plate (8), and the inner wall of the annular plate (8) is threaded with multiple sets of fixing bolts (9), and the outer side of the fixing bolts (9) is threaded with the inner wall of the outer shell (2).

3. The leak-proof dual-liquid-cooled motor housing according to claim 1, characterized in that: The inner wall of the inner shell (1) is equipped with a connecting pipe (10) for conveying coolant, and the inner wall of the inner shell (1) is provided with an installation cavity (11).

4. The leak-proof dual-liquid-cooled motor housing according to claim 1, characterized in that: The inner wall of the rubber plug (3) is provided with an installation groove (12) for installing the first sealing gasket (4).

5. A leak-proof dual-liquid-cooled motor housing according to claim 1, characterized in that: One end of the second sealing plug (7) is provided with an installation pipe (13) for conveying cooling oil.

6. A leak-proof dual-liquid-cooled motor housing according to claim 5, characterized in that: One end of the mounting pipe (13) is connected to a delivery pipe (14) for conveying cooling oil, and the delivery pipe (14) is designed in a spiral shape.

7. A leak-proof dual-liquid-cooled motor housing according to claim 5, characterized in that: The inner wall of the mounting tube (13) is provided with a placement groove (15) for installing the second sealing gasket (6), and the inner wall of the placement groove (15) is completely in contact with the outer side of the second sealing gasket (6).

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