A multi-channel heat dissipation electric drive cover for new energy vehicles

Abstract

This application discloses a multi-channel heat dissipation electric drive cover for new energy vehicles, belonging to the field of motor technology. It includes a fixed sleeve, an end cover fixedly connected to the inner side of the fixed sleeve, a sealing plate placed on the top of the end cover, heat dissipation fins fixedly connected inside the sealing plate, a fan fixedly connected to the middle of the top of the end cover, and a ventilation cylinder fixedly connected inside the end cover. This invention, by providing an end cover, ventilation cylinder, heat dissipation fins, and fan, facilitates heat dissipation for the bearing. When the motor starts, the motor shaft drives the inner ring, causing the fan blades to rotate, generating airflow towards the end cover, which helps reduce the temperature of the upper part of the bearing. Furthermore, the airflow can enter the motor housing through the cylinder, helping to reduce the temperature of the lower part of the bearing. When the bearing temperature rises, the phase change medium absorbs the heat from the bearing, reducing the temperature in the middle of the bearing, ensuring that the bearing temperature does not become too high and extending the bearing's service life.

Description

Technical Field

[0001] This application relates to the field of motor technology, and in particular to a multi-channel heat dissipation electric drive cover for new energy vehicles. Background Technology

[0002] New energy vehicles are vehicles that use unconventional vehicle fuels as their power source, including pure electric vehicles, range-extended electric vehicles, hybrid electric vehicles, fuel cell electric vehicles, and hydrogen engine vehicles. Currently, pure electric vehicles are the most common, as they use electricity as their power source and are driven by electric motors. Because they have a relatively smaller environmental impact than traditional vehicles, their prospects are widely regarded as promising. The electric drive cover is a component installed at the end of the motor housing, mainly used to seal the housing and support the bearings.

[0003] The motors of existing new energy vehicles generate a lot of heat during operation. Current heat dissipation methods mainly target the internal components of the motor and the outer casing. However, the bearings in the electric drive cover generate a lot of heat during long-term or high-speed rotation. Failure to dissipate heat in time can easily affect the service life of the bearings. Therefore, a multi-channel heat dissipation electric drive cover for new energy vehicles is provided. Summary of the Invention

[0004] The purpose of this application is to provide a multi-channel heat dissipation electric drive cover for new energy vehicles.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a multi-channel heat dissipation electric drive cover for new energy vehicles, comprising a fixing sleeve, an end cover fixedly connected to the inner side of the fixing sleeve, a sealing plate placed on the top of the end cover, heat dissipation fins fixedly connected inside the sealing plate, a fan fixedly connected to the middle of the top of the end cover, a ventilation cylinder fixedly connected inside the end cover, the end cover comprising a cover body fixedly connected to the inner side of the fixing sleeve, a screw groove provided on the top of the cover body, through holes provided around the perimeter of the cover body, a receiving groove provided inside the cover body, an outer ring fixedly connected to the inner side of the cover body, a ball movably connected to the inner side of the outer ring, and an inner ring movably connected to the outer side of the ball.

[0006] As a preferred embodiment, the fixing sleeve includes a sleeve body, the inside of which is provided with fixing holes.

[0007] As another preferred embodiment, the ventilation duct includes a cylinder body fixedly connected inside the end cap, and the inner side of the cylinder body is provided with a spiral groove.

[0008] Further preferably, the heat dissipation fins include an inner heat-conducting plate fixedly connected inside the closed plate, the inner heat-conducting plate having plate holes inside, and an outer heat dissipation fin fixedly connected to the top of the inner heat-conducting plate.

[0009] Further preferably, the sealing plate includes a sealing gasket placed on top of the end cap, the top of the sealing gasket is fixedly connected to a plate body, and the plate body is movably connected to the interior of the sealing gasket by bolts.

[0010] More preferably, the fan includes a connecting sleeve fixedly connected to the middle of the top of the end cover, and fan blades are fixedly connected to the outer side of the connecting sleeve.

[0011] Compared with the prior art, the beneficial effects of this application are as follows:

[0012] This invention, by incorporating an end cover, ventilation cylinder, heat dissipation fins, and a fan, facilitates heat dissipation for the bearing. When the motor starts, the motor shaft drives the inner ring to rotate. The inner ring is fixedly connected to the connecting sleeve. The motor shaft drives the inner ring to rotate, which in turn drives the fan blades to rotate, generating airflow directed towards the end cover, thus reducing its temperature. This also helps lower the temperature of the upper part of the bearing. Furthermore, the airflow can enter the motor housing through the cylinder, further reducing the motor's temperature and consequently the temperature of the lower part of the bearing. The spiral grooves disrupt the laminar flow of air, forcing airflow separation and reattachment, forming localized vortices that allow air to enter the motor housing. The distribution within the bearing is more uniform, facilitating even heat dissipation. When the bearing temperature rises, heat is transferred through the cover to the phase change medium in the receiving tank. The phase change medium absorbs heat and melts, thus lowering the temperature in the middle of the bearing. The heat absorbed by the phase change medium is transferred to the external heat sink through the inner heat-conducting plate. The external heat sink is directly exposed to the outside environment, facilitating heat dissipation into the air and further reducing the temperature of the phase change medium, ensuring better heat absorption. At the same time, the airflow generated by the fan further accelerates the heat dissipation of the external heat sink, further ensuring better heat dissipation of the bearing. Through multiple heat dissipation methods, the bearing is not easily damaged due to excessive temperature, extending its service life. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the multi-channel heat dissipation electric drive cover for this new energy vehicle.

[0014] Figure 2 This is a schematic diagram of the overall structure of the end cover of the multi-channel heat dissipation electric drive cover for this new energy vehicle.

[0015] Figure 3 A schematic diagram of the overall structure of the ventilation duct of the multi-channel heat dissipation electric drive cover for this new energy vehicle;

[0016] Figure 4 This is a schematic diagram of the overall structure of the heat dissipation fins and sealing plate of the multi-channel heat dissipation electric drive cover for this new energy vehicle.

[0017] Figure 5This is a schematic diagram of the overall structure of the fan in the multi-channel heat dissipation electric drive cover for this new energy vehicle.

[0018] In the diagram: 1. Fixing sleeve; 101. Sleeve body; 102. Fixing hole; 2. End cap; 201. Cap body; 202. Threaded groove; 203. Through hole; 204. Receiving groove; 205. Outer ring; 206. Inner ring; 207. Ball bearing; 3. Ventilation duct; 301. Cylinder body; 302. Spiral groove; 4. Heat dissipation fins; 401. Outer heat dissipation fins; 402. Inner heat conduction plate; 403. Plate hole; 5. Sealing plate; 501. Plate body; 502. Sealing gasket; 503. Bolt; 6. Fan; 601. Connecting sleeve; 602. Fan blade. Detailed Implementation

[0019] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0020] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0021] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0022] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0023] like Figure 1-5The multi-channel heat dissipation electric drive cover for new energy vehicles shown includes a fixing sleeve 1, an end cover 2 fixedly connected to the inner side of the fixing sleeve 1, a sealing plate 5 placed on the top of the end cover 2, heat dissipation fins 4 fixedly connected inside the sealing plate 5, a fan 6 fixedly connected to the middle of the top of the end cover 2, and a ventilation duct 3 fixedly connected inside the end cover 2. The end cover 2 includes a cover body 201 fixedly connected to the inner side of the fixing sleeve 1. The top of the cover body 201 is provided with a screw groove 202 for screwing in bolts 503 to fix the sealing plate 5. Through holes 203 are provided around the inside of the cover body 201 for fixing the ventilation duct 3. A receiving groove 204 is provided inside the cover body 201 for placing a phase change medium. An outer ring 205 is fixedly connected to the inner side of the cover body 201. A ball bearing 207 is movably connected to the inner side of the outer ring 205, and an inner ring 207 is movably connected to the outer side of the ball bearing 207. 06. The outer ring 205, ball bearing 207, and inner ring 206 form a bearing for supporting the motor shaft. The inner ring 206 is fixedly connected to the motor shaft. In use, the phase change medium is placed into the receiving groove 204, and then the sealing plate 5 is placed on the cover 201. The receiving groove 204 is sealed by screwing the bolt 503 into the threaded groove 202. Then, the fixing sleeve 1 is fixed to the motor housing through the fixing hole 102, so that the motor shaft is fixedly connected to the inner ring 206. When the bearing temperature rises, the heat is transferred to the phase change medium in the receiving groove 204 through the cover 201. The phase change medium absorbs heat and melts, thereby reducing the temperature of the bearing. The heat absorbed by the phase change medium is transferred to the external heat sink 401 through the inner heat conduction plate 402. The external heat sink 401 is directly exposed to the outside, which facilitates the dissipation of heat into the outside air, thereby reducing the temperature of the phase change medium and ensuring better heat absorption effect of the phase change medium.

[0024] Furthermore, the fixing sleeve 1 includes a sleeve body 101, and the sleeve body 101 has a fixing hole 102 inside, through which the sleeve body 101 can be fixed to the motor housing.

[0025] Furthermore, the ventilation duct 3 includes a cylinder 301 fixedly connected inside the end cover 2. The inner side of the cylinder 301 is provided with a spiral groove 302. The cylinder 301 is used for the entry of outside air, which facilitates heat dissipation inside the motor housing, making the temperature inside the motor housing lower, thereby reducing the temperature of the lower part of the bearing. The spiral groove 302 will disrupt the laminar flow state of the air flow, forcing the airflow to separate and reattach, forming a local vortex, making the distribution of air entering the motor housing more uniform, thus facilitating uniform heat dissipation.

[0026] Furthermore, the heat dissipation fins 4 include an inner heat-conducting plate 402 fixedly connected inside the closed plate 5. The inner heat-conducting plate 402 has a plate hole 403 inside, which is used for the passage of the phase change medium to ensure that the phase change medium can flow in the receiving tank 204. An outer heat dissipation fin 401 is fixedly connected to the top of the inner heat-conducting plate 402. Both the outer heat dissipation fin 401 and the inner heat-conducting plate 402 are made of copper, which has good thermal conductivity and facilitates the rapid dissipation of the heat of the phase change medium to the outside.

[0027] Furthermore, the sealing plate 5 includes a sealing gasket 502 placed on top of the end cap 2. The sealing gasket 502 is made of rubber and is used to ensure better sealing between the plate body 501 and the cap body 201. The plate body 501 is fixedly connected to the top of the sealing gasket 502. The plate body 501 and the sealing gasket 502 are movably connected by bolts 503. The sealing plate 5 can be fixed to the cap body 201 by placing the sealing plate 5 on the cap body 201 and screwing the bolts 503 into the threaded grooves 202.

[0028] Furthermore, the fan 6 includes a connecting sleeve 601 fixedly connected to the middle of the top of the end cover 2. A fan blade 602 is fixedly connected to the outside of the connecting sleeve 601. When the motor is started, the motor shaft can drive the inner ring 206 to rotate. The inner ring 206 is fixedly connected to the connecting sleeve 601. Driven by the motor shaft, the inner ring 206 can drive the connecting sleeve 601 to rotate, thereby driving the fan blade 602 to rotate, thereby generating airflow towards the end cover 2, which facilitates faster heat dissipation of the end cover 2 and the outer heat sink 401.

[0029] Working principle: During use, the phase change medium is placed into the receiving tank 204, then the sealing plate 5 is placed on the cover 201, and the receiving tank 204 is sealed by screwing the bolt 503 into the threaded groove 202. Then, the fixing sleeve 1 is fixed to the motor housing through the fixing hole 102, so that the motor shaft is fixedly connected to the inner ring 206. When the motor is started, the motor shaft can drive the inner ring 206 to rotate. The inner ring 206 is fixedly connected to the connecting sleeve 601. Driven by the motor shaft, the inner ring 206 can drive the connecting sleeve 601 to rotate, thereby driving the fan blade 602 to rotate, thus generating airflow towards the end cover 2, which helps to reduce the temperature of the end cover 2 and also helps to reduce the temperature of the upper part of the bearing. Furthermore, the airflow can enter the interior of the motor housing through the cylinder 301, which helps to reduce the temperature of the motor and, consequently, the temperature of the lower part of the bearing. The spiral groove 302 also breaks down the... The laminar flow state of the airflow forces the airflow to separate and reattach, forming local vortices. This makes the air distribution in the motor housing more uniform, facilitating even heat dissipation. When the bearing temperature rises, heat is transferred through the cover 201 to the phase change medium in the receiving groove 204. The phase change medium absorbs heat and melts, thus reducing the temperature in the middle of the bearing. The heat absorbed by the phase change medium is transferred through the inner heat-conducting plate 402 to the outer heat sink 401. The outer heat sink 401 is in direct contact with the outside, facilitating the dissipation of heat into the outside air, thereby reducing the temperature of the phase change medium and ensuring better heat absorption. At the same time, the air generated by the fan 6 can further accelerate the heat dissipation of the outer heat sink 401, further ensuring better heat dissipation of the bearing. Through multiple heat dissipation methods, the bearing is not easily damaged due to excessive temperature, extending the bearing's service life.

[0030] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A multi-channel heat dissipation electric drive cover for new energy vehicles, comprising a fixing sleeve (1), characterized in that: An end cap (2) is fixedly connected to the inner side of the fixed sleeve (1). A sealing plate (5) is placed on the top of the end cap (2). A heat dissipation fin (4) is fixedly connected inside the sealing plate (5). A fan (6) is fixedly connected to the middle of the top of the end cap (2). A ventilation tube (3) is fixedly connected inside the end cap (2). The end cap (2) includes a cover body (201) fixedly connected to the inner side of the fixed sleeve (1). A screw groove (202) is provided on the top of the cover body (201). Through holes (203) are provided around the inside of the cover body (201). A receiving groove (204) is provided inside the cover body (201). An outer ring (205) is fixedly connected to the inner side of the cover body (201). A ball bearing (207) is movably connected to the inner side of the outer ring (205). An inner ring (206) is movably connected to the outer side of the ball bearing (207).

2. The multi-channel heat dissipation electric drive cover body for new energy vehicles according to claim 1, characterized in that: The fixing sleeve (1) includes a sleeve body (101), and the sleeve body (101) has a fixing hole (102) inside. 3.The multi-channel heat dissipation electric drive cover for new energy vehicles of claim 1, wherein: The ventilation duct (3) includes a cylinder (301) fixedly connected inside the end cap (2), and the inner side of the cylinder (301) is provided with a spiral groove (302).

4. The multi-channel heat dissipation electric drive cover body for new energy vehicles of claim 1, wherein: The heat dissipation fins (4) include an inner heat-conducting plate (402) fixedly connected inside the closed plate (5), the inner heat-conducting plate (402) has a plate hole (403) inside, and an outer heat dissipation fin (401) is fixedly connected to the top of the inner heat-conducting plate (402). 5.The multi-channel heat dissipation electric drive cover for new energy vehicles of claim 1, wherein: The sealing plate (5) includes a sealing gasket (502) placed on top of the end cap (2), and a plate body (501) is fixedly connected to the top of the sealing gasket (502). The plate body (501) is movably connected to the interior of the sealing gasket (502) by bolts (503).

6. The multi-channel heat dissipation electric drive cover for new energy vehicles as described in claim 1, characterized in that: The fan (6) includes a connecting sleeve (601) fixedly connected to the middle of the top of the end cover (2), and a fan blade (602) is fixedly connected to the outside of the connecting sleeve (601).

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