Multi-stage anti-suck back decelerator housing, assembly housing structure, electric drive assembly

Abstract

The utility model relates to new energy electric automobile field discloses a multistage anti-suction reducer casing, assembly casing structure, electric drive assembly, this multistage anti-suction reducer casing sets up the baffle in the reducer cavity of reducer casing body, and the baffle divides the reducer cavity into the first cavity and the second cavity that intercommunication, sets up the input driven gear in second cavity, and sets up the oil suction port in the bottom of first cavity, and sets up the oil return port in first cavity, and after separating the oil suction port and input driven gear, the oil amount that input driven gear stirs up is reduced, and the small oil bubble that stirs up breaks up and forms the oil after meeting the baffle, avoids the oil suction port and inhales a large number of small oil bubble, reduces the risk of oil pump suction.

Description

Technical Field

[0001] This utility model relates to the field of new energy electric vehicles, specifically to a multi-stage anti-air intake reducer housing, an assembly housing structure, and an electric drive assembly. Background Technology

[0002] As a core component within the assembly housing, the reducer's operational performance is extremely important. The level and content of the lubricating oil within the reducer are crucial for the lubrication of other parts within the assembly housing. In existing technologies, the motor and reducer share a housing. Due to height differences and space constraints, the oil tends to accumulate on one side during rapid acceleration, braking, or driving on inclines, exposing the oil intake port on the other side. This greatly increases the risk of cavitation, severely impacting the reducer's lifespan and overall vehicle safety. Furthermore, the high-speed agitation of the gears generates numerous small air bubbles in the oil within the chamber. When the oil pump draws in a large number of air bubbles through the intake port, it increases the risk of cavitation, thereby lowering the lubricating oil level, increasing the risk of poor lubrication, and affecting the lifespan of the oil pump and other components. Utility Model Content

[0003] To overcome the above problems, this utility model provides a multi-stage anti-cavitation reducer housing, an assembly housing structure, and an electric drive assembly. The multi-stage anti-cavitation reducer housing has an oil baffle plate installed in the reducer cavity of the reducer housing body. The oil baffle plate divides the reducer cavity into a first cavity and a second cavity that are interconnected. The input driven gear is located in the second cavity, the oil suction port is located at the bottom of the first cavity, and the oil return port is located in the first cavity. After the oil suction port and the input driven gear are separated, the amount of oil agitated by the input driven gear is reduced. At the same time, the small oil bubbles agitated break upon hitting the oil baffle plate to form oil, preventing the oil suction port from sucking in a large number of small oil bubbles and reducing the risk of oil pump cavitation.

[0004] To achieve the above objectives, this utility model provides a multi-stage anti-air intake reducer housing, the reducer housing comprising: The reducer housing body has a reducer cavity inside it; An oil baffle is provided at the bottom of the reducer cavity and is vertically attached to the inner surface of the reducer housing, dividing the reducer cavity into a first cavity that is close to the motor cavity and a second cavity that is far away from the motor cavity. An input driven gear is disposed within the second cavity; An oil suction port is located at the bottom of the first cavity and is connected to the oil pump. The oil return port is located in the first cavity and is connected to the external motor cavity.

[0005] Preferably, the reducer housing further includes an oil reservoir, which is located at the bottom of the inner surface of the reducer housing body near the oil inlet and below the oil baffle. The bottom of the oil reservoir and the bottom of the oil baffle are provided with a gap. One side of the oil reservoir is connected to the first cavity and the other side is connected to the second cavity.

[0006] Preferably, the height of the lowest point of the input driven gear is lower than the height of the highest point of the oil baffle.

[0007] Preferably, the oil return port is funnel-shaped, and the side of the oil return port closest to the oil suction port is enlarged.

[0008] A second aspect of this utility model provides a multi-level anti-susceptibility air-electric drive assembly housing structure, the assembly housing structure comprising: A motor housing, wherein a motor cavity is provided inside the motor housing; The reducer housing, which is sealed and connected to the motor housing, includes: The reducer housing body has a reducer cavity inside it; An oil baffle is provided at the bottom of the reducer cavity and is vertically attached to the inner surface of the reducer housing, dividing the reducer cavity into a first cavity close to the motor cavity and a second cavity away from the motor cavity; An input driven gear is disposed within the second cavity; An oil suction port is located at the bottom of the first cavity and is connected to the oil pump. An oil return port is provided in the first cavity and connected to the motor cavity.

[0009] Preferably, the reducer housing further includes an oil reservoir, which is located at the bottom of the inner surface of the reducer housing body near the oil inlet and below the oil baffle. The bottom of the oil reservoir and the bottom of the oil baffle are provided with a gap. One side of the oil reservoir is connected to the first cavity and the other side is connected to the second cavity.

[0010] Preferably, the height of the lowest point of the input driven gear is lower than the height of the highest point of the oil baffle.

[0011] Preferably, the oil return port is funnel-shaped, and the side of the oil return port closest to the oil suction port is enlarged.

[0012] The third aspect of this utility model provides an electric drive assembly having a multi-stage anti-air-sucking electric drive assembly housing structure as described in any of the preceding claims.

[0013] Through the above technical solution, the multi-stage anti-air intake reducer housing, assembly housing structure, and electric drive assembly, through the set reducer housing and oil baffle, divide the reducer cavity into a first cavity and a second cavity that are interconnected. The input driven gear is set in the second cavity, and the oil suction port is set at the bottom of the first cavity. After the oil suction port and the input driven gear are separated, the amount of oil agitated by the input driven gear is reduced, and a large number of small oil bubbles are avoided from being sucked into the oil suction port. The oil storage chamber is set on the inner surface of the reducer housing body near the oil suction port. At the bottom, one side of the oil storage chamber is connected to the first chamber, and the other side is connected to the second chamber. When the small oil bubbles stirred up hit the oil baffle, they break into oil and fall into the oil storage chamber, ensuring that there is enough oil at the oil inlet. At the same time, the oil return port is set in the first chamber. The oil return port can be set in a funnel shape, and the side of the oil return port near the oil inlet is enlarged. This ensures that the oil gathers to one side and quickly flows back to the large oil inlet when accelerating, braking or driving on a slope, reducing the risk of the oil pump sucking in air and realizing multi-stage anti-air sucking protection for the oil pump. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of a multi-stage anti-air suction reducer housing according to one embodiment of the present utility model; Figure 2 This is a schematic diagram of an oil baffle plate of a multi-stage anti-air suction reducer housing according to one embodiment of the present utility model; Figure 3 This is a cross-sectional schematic diagram of the reducer cavity and oil baffle plate of a multi-stage anti-air suction reducer housing according to one embodiment of the present utility model. Figure 4 This is a color structural schematic diagram of some components of a multi-level anti-suspension air-electric drive assembly housing structure according to one embodiment of the present utility model.

[0015] Explanation of reference numerals in the attached figures Detailed Implementation

[0016] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.

[0017] In this embodiment of the utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used to describe the relative positional relationships of the components in relation to the directions shown in the accompanying drawings or in relation to the vertical, perpendicular, or gravitational directions.

[0018] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0019] like Figure 1 The diagram shown is a structural schematic of a multi-stage anti-air intake reducer housing according to one embodiment of the present invention; as shown... Figure 2 The diagram shown is a schematic of an oil baffle plate for a multi-stage anti-air intake reducer housing according to one embodiment of the present invention; as shown... Figure 3 The diagram shown is a cross-sectional view of the reducer cavity and oil baffle plate of a multi-stage anti-air intake reducer housing according to one embodiment of the present invention; Figure 1 , 2 In section 3, the reducer housing includes a reducer housing body 1, an oil baffle 2, an input driven gear 3, an oil suction port 4, and an oil return port 5. Specifically, a reducer cavity 11 is provided inside the reducer housing body 1. The oil baffle 2 is located at the bottom of the reducer cavity 11 and is vertically attached to the inner surface of the reducer housing body 1, dividing the reducer cavity 11 into a first cavity 111 that is close to the external motor cavity 71 and a second cavity 112 that is far away from the motor cavity 71. The input driven gear 3 is located in the second cavity 112. The oil suction port 4 is located at the bottom of the first cavity 111 and is connected to the oil pump. The oil return port 5 is located in the first cavity 111 and is connected to the external motor cavity 71. The presence of the baffle plate 2 reduces the generation of small oil bubbles when the driven gear 3 agitates the oil. At the same time, the oil bubbles break after contacting the baffle plate 2, and the oil accumulates at the oil inlet 4, ensuring sufficient oil at the oil inlet 4, preventing the oil pump from sucking in air, ensuring the reliability of the reducer, and improving the service life of the reducer and the oil pump.

[0020] Through the above solution, the multi-stage anti-cavitation reducer housing has an oil baffle plate installed in the reducer cavity of the reducer housing body. The oil baffle plate divides the reducer cavity into a first cavity and a second cavity that are interconnected. The input driven gear is set in the second cavity, the oil suction port is set at the bottom of the first cavity, and the oil return port is set in the first cavity. After the oil suction port and the input driven gear are separated, the amount of oil stirred by the input driven gear is reduced. At the same time, the small oil bubbles stirred up break into oil after hitting the oil baffle plate, avoiding the oil suction port from sucking in a large number of small oil bubbles and reducing the risk of oil pump cavitation.

[0021] In Figures 1 and 3, considering the sufficient oil at the oil suction port 4, and to reduce the risk of oil accumulating to one side and causing the oil suction port 4 to be exposed during rapid acceleration, braking, or driving on an incline, in one embodiment of this utility model, the reducer housing also includes an oil storage chamber 6. The oil storage chamber 6 is located at the bottom of the inner surface of the reducer housing body 1 near the oil suction port 4, and is located below the oil baffle 2. A gap exists between the bottom of the oil storage chamber 6 and the oil baffle 2. One side of the oil storage chamber 6 is connected to the first cavity 111, and the other side is connected to the second cavity 112. This reduces the rate at which oil accumulates to one side during rapid acceleration, braking, or driving on an incline. Simultaneously, the presence of the oil storage chamber 6 stores some oil, ensuring that the oil suction port 4 does not experience cavitation under extreme operating conditions, thus guaranteeing the normal operation of the oil pump.

[0022] exist Figure 1 and 3 In order to reduce the loss of oil caused by the input driven gear 3 stirring the oil and increase the breaking speed of the generated oil bubbles, in one embodiment of this utility model, the height of the lowest point of the input driven gear 3 is lower than the height of the highest point of the oil baffle 2, so that the oil baffle 2 can block most of the oil bubbles in the second cavity 112. The oil bubbles are broken and flow back to the bottom of the oil baffle 2 due to rapid collision with the oil baffle 2, reducing the oil bubble content at the oil suction port 4 and avoiding cavitation.

[0023] exist Figure 1 and 3 In order to avoid the oil intake port 4 being exposed when the oil pools to one side during rapid acceleration, braking, or driving on a slope, in one embodiment of this utility model, the oil return port 5 is funnel-shaped, and the side of the oil return port 5 near the oil intake port 4 is enlarged. This increases the amount of oil at the oil return port 5 when the oil pools to one side during rapid acceleration, braking, or driving on a slope. Under the action of the funnel-shaped oil return port 5, the oil at the oil return port 5 can quickly flow back to the oil intake port 4, greatly improving the oil return efficiency and reducing the risk of air suction.

[0024] like Figure 4 The diagram shown is a color-coded structural schematic of some components of a multi-stage anti-suspension air-electric drive assembly housing structure according to one embodiment of the present invention. Figure 1 , 2 In 3 and 4, the second aspect of this utility model provides a multi-stage anti-sucking air-electric drive assembly housing structure. The assembly housing structure includes a motor housing 7 and a reducer housing. Specifically, a motor cavity 71 is provided inside the motor housing 7, and the reducer housing is sealed and connected to the motor housing 7. The reducer housing includes a reducer housing body 1, an oil baffle 2, an input driven gear 3, an oil suction port 4, and an oil return port 5. Specifically, a reducer cavity 11 is provided inside the reducer housing body 1. The oil baffle 2 is located at the bottom of the reducer cavity 11 and is vertically attached to the inner surface of the reducer housing body 1, dividing the reducer cavity 11 into a first cavity 111 that is close to the external motor cavity 71 and a second cavity 112 that is far away from the motor cavity 71. The input driven gear 3 is located in the second cavity 112. The oil suction port 4 is located at the bottom of the first cavity 111 and is connected to the oil pump. The oil return port 5 is located in the first cavity 111 and is connected to the external motor cavity 71. The presence of the baffle plate 2 reduces the generation of small oil bubbles when the driven gear 3 agitates the oil. At the same time, the oil bubbles break after contacting the baffle plate 2, and the oil accumulates at the oil inlet 4, ensuring sufficient oil at the oil inlet 4, preventing the oil pump from sucking in air, ensuring the reliability of the reducer, and improving the service life of the reducer and the oil pump.

[0025] Through the above solution, the multi-stage anti-cavitation reducer housing has an oil baffle plate installed in the reducer cavity of the reducer housing body. The oil baffle plate divides the reducer cavity into a first cavity and a second cavity that are interconnected. The input driven gear is set in the second cavity, the oil suction port is set at the bottom of the first cavity, and the oil return port is set in the first cavity. After the oil suction port and the input driven gear are separated, the amount of oil stirred by the input driven gear is reduced. At the same time, the small oil bubbles stirred up break into oil after hitting the oil baffle plate, avoiding the oil suction port from sucking in a large number of small oil bubbles and reducing the risk of oil pump cavitation.

[0026] In Figures 1 and 3, considering the sufficient oil at the oil suction port 4, and to reduce the risk of oil accumulating to one side and causing the oil suction port 4 to be exposed during rapid acceleration, braking, or driving on an incline, in one embodiment of this utility model, the reducer housing also includes an oil storage chamber 6. The oil storage chamber 6 is located at the bottom of the inner surface of the reducer housing body 1 near the oil suction port 4, and is located below the oil baffle 2. A gap exists between the bottom of the oil storage chamber 6 and the oil baffle 2. One side of the oil storage chamber 6 is connected to the first cavity 111, and the other side is connected to the second cavity 112. This reduces the rate at which oil accumulates to one side during rapid acceleration, braking, or driving on an incline. Simultaneously, the presence of the oil storage chamber 6 stores some oil, ensuring that the oil suction port 4 does not experience cavitation under extreme operating conditions, thus guaranteeing the normal operation of the oil pump.

[0027] exist Figure 1 and 3 In order to reduce the loss of oil caused by the input driven gear 3 stirring the oil and increase the breaking speed of the generated oil bubbles, in one embodiment of this utility model, the height of the lowest point of the input driven gear 3 is lower than the height of the highest point of the oil baffle 2, so that the oil baffle 2 can block most of the oil bubbles in the second cavity 112. The oil bubbles are broken and flow back to the bottom of the oil baffle 2 due to rapid collision with the oil baffle 2, reducing the oil bubble content at the oil suction port 4 and avoiding cavitation.

[0028] exist Figure 1 and 3 In order to avoid the oil intake port 4 being exposed when the oil pools to one side during rapid acceleration, braking, or driving on a slope, in one embodiment of this utility model, the oil return port 5 is funnel-shaped, and the side of the oil return port 5 near the oil intake port 4 is enlarged. This increases the amount of oil at the oil return port 5 when the oil pools to one side during rapid acceleration, braking, or driving on a slope. Under the action of the funnel-shaped oil return port 5, the oil at the oil return port 5 can quickly flow back to the oil intake port 4, greatly improving the oil return efficiency and reducing the risk of air suction.

[0029] The third aspect of this utility model provides an electric drive assembly having a multi-stage anti-air-sucking electric drive assembly housing structure as described in any of the preceding claims.

[0030] Through the above technical solution, the multi-stage anti-air intake reducer housing, assembly housing structure, and electric drive assembly, through the set reducer housing and oil baffle, divide the reducer cavity into a first cavity and a second cavity that are interconnected. The input driven gear is set in the second cavity, and the oil suction port is set at the bottom of the first cavity. After the oil suction port and the input driven gear are separated, the amount of oil agitated by the input driven gear is reduced, and a large number of small oil bubbles are avoided from being sucked into the oil suction port. The oil storage chamber is set on the inner surface of the reducer housing body near the oil suction port. At the bottom, one side of the oil storage chamber is connected to the first chamber, and the other side is connected to the second chamber. When the small oil bubbles stirred up hit the oil baffle, they break into oil and fall into the oil storage chamber, ensuring that there is enough oil at the oil inlet. At the same time, the oil return port is set in the first chamber. The oil return port can be set in a funnel shape, and the side of the oil return port near the oil inlet is enlarged. This ensures that the oil gathers to one side and quickly flows back to the large oil inlet when accelerating, braking or driving on a slope, reducing the risk of the oil pump sucking in air and realizing multi-stage anti-air sucking protection for the oil pump.

[0031] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention. Furthermore, it should be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present invention will not further describe the various possible combinations.

[0032] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A multi-stage anti-suckback decoupler housing characterized by, The reducer housing includes: The reducer housing body has a reducer cavity inside it; An oil baffle is provided at the bottom of the reducer cavity and is vertically attached to the inner surface of the reducer housing, dividing the reducer cavity into a first cavity that is close to the motor cavity and a second cavity that is far away from the motor cavity. An input driven gear is disposed within the second cavity; An oil suction port is located at the bottom of the first cavity and is connected to the oil pump. The oil return port is located in the first cavity and is connected to the external motor cavity.

2. The reducer housing according to claim 1, characterized in that The reducer housing also includes an oil reservoir, which is located at the bottom of the inner surface of the reducer housing body near the oil inlet and below the oil baffle. The oil reservoir is located below the oil baffle, and there is a gap between the bottom of the oil reservoir and the bottom of the oil baffle. One side of the oil reservoir is connected to the first cavity, and the other side is connected to the second cavity.

3. The reducer housing according to claim 1, characterized in that, The height of the lowest point of the input driven gear is lower than the height of the highest point of the oil baffle.

4. The reducer housing according to claim 1, characterized in that, The return oil port is funnel-shaped, and the side of the return oil port closest to the suction oil port is enlarged.

5. A multi-stage, anti-suckback, electric drive assembly housing structure, comprising: The assembly housing structure includes: A motor housing, wherein a motor cavity is provided inside the motor housing; The reducer housing, which is sealed and connected to the motor housing, includes: The reducer housing body has a reducer cavity inside it; An oil baffle is provided at the bottom of the reducer cavity and is vertically attached to the inner surface of the reducer housing, dividing the reducer cavity into a first cavity close to the motor cavity and a second cavity away from the motor cavity; An input driven gear is disposed within the second cavity; An oil suction port is located at the bottom of the first cavity and is connected to the oil pump. An oil return port is provided in the first cavity and connected to the motor cavity.

6. The assembly housing structure of claim 5, wherein, The reducer housing also includes an oil reservoir, which is located at the bottom of the inner surface of the reducer housing body near the oil inlet and below the oil baffle. The oil reservoir is located below the oil baffle, and there is a gap between the bottom of the oil reservoir and the bottom of the oil baffle. One side of the oil reservoir is connected to the first cavity, and the other side is connected to the second cavity.

7. The assembly housing structure of claim 5, wherein, The height of the lowest point of the input driven gear is lower than the height of the highest point of the oil baffle.

8. The assembly housing structure of claim 5, wherein, The return oil port is funnel-shaped, and the side of the return oil port closest to the suction oil port is enlarged.

9. An electric drive assembly, characterized by The electric drive assembly has a multi-stage anti-air-sucking electric drive assembly housing structure as described in any one of claims 5-8.

Images