Oil-cooled motor shell cooling structure

Abstract

The utility model relates to an oil cooling motor housing cooling structure, which comprises a housing and a heat dissipation member, the housing is provided with an oil inlet and a heat dissipation cavity, the heat dissipation member is arranged in the heat dissipation cavity to form a cooling loop, and lubricating oil enters the heat dissipation cavity through the oil inlet of the housing and is cooled through the heat dissipation member. The heat dissipation cavity for containing the cooling fins is additionally arranged on an original shell, a heat dissipation piece is placed in the heat dissipation cavity to form a cooling loop, lubricating oil is directly cooled through the oil inlet in the shell and the integrated heat dissipation cavity of the cooling fins, and therefore the purposes of reducing the oil temperature, improving the efficiency and reasonably utilizing the structural characteristics are achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of engines, and in particular to a cooling structure for an oil-cooled motor housing. Background Technology

[0002] The oil-cooled motor housing cooling oil circuit is a type of motor cooling system. Its main function is to cool the motor and maintain its normal operating temperature. The primary function of the oil cooler is to cool the lubricating oil and keep its temperature within the normal operating range.

[0003] In existing oil-cooled motor housings, the cooling oil circuit and oil cooler are arranged separately, resulting in a long circuit, low cooling efficiency, low structural utilization, heavy weight, and numerous parts. The core of the oil cooler lies in its internal heat sink structure. If the heat sink assembly could be integrated into the housing, the number of parts would be significantly reduced, structural utilization would be improved, and weight would be reduced. Utility Model Content

[0004] In view of this, the present invention provides a cooling structure for an oil-cooled motor housing, which integrates the heat sink assembly into the housing, reducing the number of parts, improving structural utilization, and reducing weight.

[0005] The cooling structure for an oil-cooled motor housing provided by this utility model adopts the following technical solution:

[0006] A cooling structure for an oil-cooled motor housing includes a housing and a heat sink. The housing has an oil inlet and a heat sink cavity. The heat sink cavity is disposed within the heat sink cavity to form a cooling circuit. Lubricating oil enters the heat sink cavity through the oil inlet of the housing and is cooled by the heat sink cavity.

[0007] Optionally, the heat dissipation cavity is provided with partition ribs, which divide the shell into an oil inlet cavity, an oil outlet cavity, a coolant inlet cavity, and a coolant outlet cavity. The oil inlet is in communication with the oil inlet cavity, and the lubricating oil passes through the oil inlet cavity and is discharged from the oil outlet cavity. The heat dissipation cavity is in communication with the coolant inlet cavity and the coolant outlet cavity, and the coolant enters the heat dissipation cavity through the coolant inlet cavity and is discharged from the coolant outlet cavity. The lubricating oil and coolant exchange heat through the heat dissipation components to cool the lubricating oil.

[0008] Optionally, the partition stiffeners are integrally cast with the shell.

[0009] Optionally, the heat sink is a heat sink assembly.

[0010] Optionally, the heat sink assembly can be detachably mounted on the housing.

[0011] Optionally, one end of the housing is open, and a cover plate adapted to the housing opening is provided on the housing, the cover plate being used to seal the heat sink assembly inside the housing.

[0012] Optionally, the heat sink assembly is in sealed contact with the partition ribs.

[0013] In summary, this utility model includes at least one of the following beneficial technical effects: a heat dissipation cavity for accommodating heat sinks is added to the original housing, and the heat sink is placed in the heat dissipation cavity to form a cooling circuit. The lubricating oil is directly cooled through the oil inlet in the housing and the integrated heat dissipation cavity of the heat sink, so as to reduce the oil temperature, improve efficiency, and make reasonable use of the structural features. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0016] Figure 2 This is a cross-sectional view of an embodiment of the present utility model;

[0017] Figure 3 This is an exploded structural diagram of an embodiment of the present invention.

[0018] Explanation of reference numerals in the attached drawings: 1. Housing; 2. Heat sink assembly; 3. Oil inlet; 4. Heat dissipation cavity; 5. Partition rib; 6. Oil inlet cavity; 7. Oil outlet cavity; 8. Coolant inlet cavity; 9. Coolant outlet cavity; 10. Cover plate; 11. Oil outlet; 12. Water inlet; 13. Water outlet. Detailed Implementation

[0019] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0020] The following is in conjunction with the appendix Figure 1-3 The present invention will be described in further detail below.

[0021] This utility model discloses a cooling structure for an oil-cooled motor housing.

[0022] Reference Figures 1-3 A cooling structure for an oil-cooled motor housing includes a housing 1 and a heat sink. The housing 1 has an oil inlet 3 and an oil outlet 11, and a heat dissipation cavity 4. The heat sink is disposed within the heat dissipation cavity 4 to form a cooling circuit. Lubricating oil enters the heat dissipation cavity 4 through the oil inlet 3 of the housing 1 and is cooled by the heat sink. By adding a heat dissipation cavity 4 to the original housing 1 to accommodate heat sink fins, and placing the heat sink within the heat dissipation cavity 4 to form a cooling circuit, the lubricating oil is directly cooled through the integrated heat dissipation cavity 4 with the heat sink in the housing 1 via the oil inlet 3, thereby reducing oil temperature, improving efficiency, and making rational use of the structural features.

[0023] The heat dissipation cavity 4 is provided with partition ribs 5. In order to facilitate processing and ensure overall strength, the partition ribs 5 are integrally cast with the shell 1.

[0024] The partition rib 5 divides the shell 1 into an oil inlet chamber 6, an oil outlet chamber 7, a coolant inlet chamber 8, and a coolant outlet chamber 9. In this embodiment, the longitudinal section of the partition rib 5 is cross-shaped, dividing the oil inlet chamber 6, oil outlet chamber 7, coolant inlet chamber 8, and coolant outlet chamber 9 into four equal parts, thereby ensuring the cooling effect.

[0025] The oil inlet 3 communicates with the oil inlet chamber 6, through which lubricating oil passes and exits from the oil outlet chamber 7. The heat dissipation chamber 4 communicates with the coolant inlet chamber 8 and the coolant outlet chamber 9, through which coolant enters the heat dissipation chamber 4 via the coolant inlet chamber 8 and exits from the coolant outlet chamber 9. The lubricating oil and coolant exchange heat through the heat dissipation components to cool the lubricating oil. Since the partition rib 5 is integrally cast with the shell 1, it is made of the same thermally conductive material as the shell 1 and has a heat exchange function. The lubricating oil enters the heat dissipation chamber 4 through the oil inlet chamber 6 on the shell 1, and the coolant enters the heat dissipation chamber 4 through the coolant inlet chamber 8 on the shell 1. The lubricating oil and coolant exchange heat through the heat dissipation fin assembly 2 to cool the lubricating oil.

[0026] In this embodiment, the heat sink is a heat sink assembly 2. The heat sink assembly 2 is made of materials with good thermal conductivity such as aluminum alloy, brass or bronze, and includes plate-shaped, sheet-shaped, and multi-sheet-shaped components. In this embodiment, a sheet-shaped component is used. The heat sink assembly 2 is in sealed contact with the partition rib plate 5. The heat sink assembly 2 increases the heat dissipation area and improves the heat dissipation effect.

[0027] To facilitate installation and subsequent maintenance, the heat sink assembly 2 is detachably mounted on the housing 1. Specifically, the heat sink assembly 2 is connected in series and fixed to the housing 1 with bolts to complete the installation.

[0028] One end of the housing 1 is open and flows into the heat dissipation cavity 4. A cover plate 10 adapted to the opening of the housing 1 is provided at the opening of the housing 1. The cover plate 10 is used to seal the heat dissipation fin assembly 2 inside the housing 1. The cover plate 10 is in sealed contact with the housing 1 and the heat dissipation fin assembly 2. In this way, the oil inlet cavity 6 and the oil outlet cavity 7 are connected through the heat dissipation fin assembly 2 to form a complete oil channel. The housing 1 has a water inlet 12 that flows into the coolant inlet cavity 8. Similarly, it also has a water outlet 13 that flows into the coolant outlet cavity 9. The coolant inlet cavity 8 and the coolant outlet cavity 9 are connected through the heat dissipation fin assembly 2 to form a water channel.

[0029] This invention integrates an oil circuit on the digital model of the motor housing 1 to meet the requirements of conduction, flow, and heat dissipation. The dimensions are then guaranteed to be qualified through mold making and processing. Furthermore, the function of the motor housing 1 is changed, enabling the integration of the motor housing 1 with the heat sink assembly 2 to complete the heat exchange of oil and water in a smaller space. This reduces the number of parts, lowers product quality, increases structural occupancy, thereby reducing volume and increasing product competitiveness.

[0030] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. The above descriptions are only preferred embodiments of this utility model. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this utility model, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. An oil-cooled electric machine housing cooling structure, characterized by: The application relates to a lubricating oil cooling device, which comprises a shell and a heat radiating piece, the shell is provided with an oil inlet, the shell is provided with a heat radiating cavity, the heat radiating piece is arranged in the heat radiating cavity to form a cooling loop, lubricating oil enters the heat radiating cavity through the oil inlet of the shell and is cooled by the heat radiating piece; The heat radiating cavity is provided with a partitioned rib plate, the shell is divided into an oil inlet cavity, an oil outlet cavity, a cooling liquid inlet cavity and a cooling liquid outlet cavity by the partitioned rib plate, the oil inlet is communicated with the oil inlet cavity, the lubricating oil passes through the oil inlet cavity and is discharged from the oil outlet cavity, the heat radiating cavity is communicated with the cooling liquid inlet cavity and the cooling liquid outlet cavity, the cooling liquid enters the heat radiating cavity through the cooling liquid inlet cavity and is discharged from the cooling liquid outlet cavity, and the lubricating oil and the cooling liquid are heat-exchanged by the heat radiating piece to cool the lubricating oil.

2. The oil-cooled motor housing cooling structure according to claim 1, characterized by: The partitioned rib plate is integrally cast with the shell.

3. The oil-cooled motor housing cooling structure according to claim 1, characterized by: The heat radiating piece is a heat radiating fin assembly.

4. The oil-cooled motor housing cooling structure according to claim 3, characterized by: The heat radiating fin assembly is detachably arranged in the shell.

5. The oil-cooled motor housing cooling structure according to claim 4, characterized by: One end of the shell is open, a cover plate matched with the opening of the shell is arranged on the shell, and the cover plate is used for sealing the heat radiating fin assembly in the shell.

6. The oil-cooled motor housing cooling structure according to claim 3, characterized by: The heat radiating fin assembly is in sealing contact with the partitioned rib plate.

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