Oil cooling motor structure and vehicle

Abstract

The utility model provides an oil-cooled motor structure and a vehicle, the oil-cooled motor structure comprises a motor body, the motor body is provided with a cooling component, and the interior of the cooling component is provided with a cooling oil channel; the oil spraying holes are formed in the peripheral wall of the cooling component; and the adjusting component is arranged on the inner wall of the cooling component so as to adjust the oil spraying area of the oil spraying hole. According to the oil-cooled motor structure, the heat dissipation efficiency of the oil-cooled motor can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of vehicle power modules, in particular to an oil-cooled motor structure and a vehicle. Background Art

[0002] New energy vehicle drive motors are gradually developing towards high power density and high torque density. The three-phase permanent magnet synchronous motor has become the preferred type of automotive drive motor due to its wide speed range and high power density. Automotive drive motors have high requirements for motor speed, with the maximum speed reaching tens of thousands of revolutions per minute. The various losses generated when the motor is running will be converted into heat, causing serious heating of the internal components of the motor. The internal temperature rise limit of the motor directly affects the durability and service life of the motor, and the harmonic magnetic fields of the rotor and stator will produce large eddy current losses on the magnetic steel, which will lead to an increase in the temperature of the magnetic steel.

[0003] Traditional drive motor cooling technology is generally air cooling or water cooling. Air cooling technology has a complex structure and large motor size, so it is rarely used in automotive drive motors. Water cooling technology generally opens water channels on the motor housing to indirectly cool the motor by cooling the housing, but the heat dissipation efficiency is not high. For high power density and high torque density motors, traditional heat dissipation can no longer meet the needs.

[0004] Oil-cooled motors are the current development trend of new energy motors. The heat dissipation method and heat dissipation efficiency of oil-cooled motors are very important. The existing heat dissipation oil circuit of oil-cooled motors is difficult to improve the heat dissipation efficiency of the motor. Utility Model Content

[0005] The utility model provides an oil-cooled motor structure and a vehicle, which can effectively improve the heat dissipation efficiency of the oil-cooled motor.

[0006] In a first aspect, an embodiment of the utility model provides an oil-cooled motor structure, including a motor body, wherein the motor body is provided with:

[0007] Cooling components, with cooling oil channels inside;

[0008] an oil injection hole, which is provided on the peripheral wall of the cooling component; and

[0009] The adjusting component is arranged on the inner wall of the cooling component to adjust the oil spraying area of ​​the oil spraying hole.

[0010] Optionally, the regulating component includes any one of an oil baffle, a ball valve and a plug.

[0011] Optionally, a bottom projection area of ​​the adjusting component is smaller than a bottom projection area of ​​the cooling component.

[0012] Optionally, the adjusting component is connected to the cooling component via a sliding mechanism, and the sliding mechanism is configured to drive the adjusting component to slide.

[0013] Optionally, the sliding mechanism includes a motor, a transmission gear, a sprocket and at least one driven gear, the output end of the motor is connected to the transmission gear, the transmission gear is rotationally connected to each of the driven gears through the sprocket, and each of the driven gears is connected to the adjusting component.

[0014] Optionally, the cooling component includes a plurality of cooling oil pipes, each of which is hollow inside to form the cooling oil channel; wherein,

[0015] Each of the cooling oil pipes includes any one of a straight type, a curved type, a spiral type and a branch type.

[0016] Optionally, a plurality of cooling oil pipes are interconnected.

[0017] Optionally, the plurality of cooling oil pipes are arranged in any one of an arc shape, a ring shape, a curve shape and a grid shape.

[0018] Optionally, the oil injection hole includes any one of a circular, an elliptical and a rectangular shape.

[0019] Optionally, there are multiple fuel injection holes, the multiple fuel injection holes have different directions, and / or the multiple fuel injection holes have different intervals between them.

[0020] Optionally, a motor end cover is provided on the motor body, a heat dissipation channel is provided in the motor end cover, and the heat dissipation channel is connected to the cooling oil channel.

[0021] Optionally, each of the oil injection holes is inclined toward the motor end cover.

[0022] Optionally, the motor body includes a drive motor winding and a generator winding, and the end faces of the drive motor winding and the generator winding share the motor end cover; wherein the cooling component is respectively provided on the drive motor winding and the generator winding.

[0023] In a second aspect, an embodiment of the present invention provides a vehicle equipped with an oil-cooled motor structure as provided in the first aspect of the present invention.

[0024] Compared with the prior art, the utility model has the following advantages:

[0025] The oil-cooled motor structure provided by the embodiment of the utility model includes a motor body, on which is provided: a cooling component with a cooling oil channel opened inside; an oil spray hole opened on the peripheral wall of the cooling component; and an adjustment component arranged on the inner wall of the cooling component to adjust the oil spray area of ​​the oil spray hole.

[0026] By adopting the oil-cooled motor structure of the utility model, a cooling component and an adjusting component are designed. The adjusting component can slide in the cooling component to cover the oil spray hole to different degrees, thereby adjusting the oil spray amount, thereby realizing three different oil spray cooling methods of small spray hole, medium spray hole and multiple spray holes. The three oil spray cooling methods can respectively correspond to the three operating conditions of the motor, namely small load, medium load and large load, thereby effectively realizing high load to improve cooling and heat dissipation to ensure the normal operation of the motor; small load to reduce oil stirring loss and improve lubrication performance; medium load intelligently regulates the motor to operate in the optimal operating temperature range, with both high power and high efficiency output, and at the same time has good heat dissipation performance.

[0027] The advantages of the vehicle and the above-mentioned oil-cooled motor structure over the prior art are the same and will not be repeated here.

[0028] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for describing the embodiments are briefly introduced below.

[0030] Figure 1 The overall structural diagram of the oil-cooled motor structure provided by the embodiment of the utility model;

[0031] Figure 2 A front view of the oil-cooled motor structure provided by an embodiment of the utility model;

[0032] Figure 3 A schematic diagram of the assembly structure of the cooling component and the sliding mechanism provided in an embodiment of the utility model;

[0033] Figure 4 A schematic diagram of an exploded view of a cooling component and an oil baffle provided in an embodiment of the utility model. Description of the drawings:

[0035] 1. Driving motor winding; 2. Generator winding; 3. Motor end cover; 4. Cooling components; 5. Oil injection hole; 6. Fixing bolts; 7. Motor; 8. Transmission gear; 9. Sprocket; 10. Driven gear; 11. Adjustment components. DETAILED DESCRIPTION

[0036] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can also be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0037] See also Figure 1-Figure 4 , Figure 1 This is a schematic diagram of the overall structure of the oil-cooled motor structure shown in the utility model; Figure 2 This is a front view of the oil-cooled motor structure shown in the utility model; Figure 3 This is a schematic diagram of the assembly structure of the cooling component and the sliding mechanism shown in the utility model; Figure 4 This is a schematic diagram of the decomposition of the cooling component and the oil baffle plate shown in the utility model. Figure 1-Figure 4 The utility model provides an oil-cooled motor structure, including a motor body, on which are provided: a cooling component 4, which has a cooling oil channel opened inside; an oil spray hole 5, which is opened on the peripheral wall of the cooling component 4; and an adjusting component 11, which is arranged on the inner wall of the cooling component 4 to adjust the oil spray area of ​​the oil spray hole 5.

[0038] Specifically, the motor body can be understood as a carrier that supports and protects the core components of the motor, such as the motor housing and the rotor, stator, corresponding shaft and support bearings located on the motor housing. In order to improve the cooling effect, the embodiment of the present application is provided with a cooling component 4 on the motor end cover 3, and the cooling component 4 can be fixed to the motor housing by fixing bolts 6. A cooling oil channel is provided on the cooling component 4, and the cooling oil channel is understood as one or more paths for conducting cooling oil that are opened based on the shape of the cooling component 4.

[0039] Cooling oil refers to a liquid used to reduce the temperature of the motor, which can be transferred from the motor end cover 3 to the cooling component 4. For example, the oil inlet of the cooling oil channel is connected to the oil circuit of the heat dissipation channel in the motor end cover 3, so that the cooling oil is input into the cooling oil channel, and guided by the cooling oil channel to the components that need to be cooled, thereby increasing the contact area of ​​the cooling oil and achieving sufficient cooling of the internal components of the motor.

[0040] Specifically, the cooling oil channel is connected to the oil injection hole 5, that is, it is opened on the cooling component 4, so that the cooling oil channel is connected to the outside. The oil injection hole 5 can be designed in different shapes and sizes, such as circular, elliptical or rectangular shapes, and its parameters such as diameter, number and position can be selected in a large range to adjust the flow rate and direction of the sprayed cooling oil.

[0041] In some embodiments, the shapes of all the fuel injection holes 5 may be the same; in some embodiments, the shapes of some of the fuel injection holes 5 may be the same or different; in some embodiments, the shapes of all the fuel injection holes 5 may be the same but the sizes may be different; in some embodiments, the shapes and sizes of some of the fuel injection holes 5 may be the same; in some embodiments, the shapes and sizes of some of the fuel injection holes 5 may be different.

[0042] The cooling oil passage can realize the oil injection amount of the oil injection hole 5 by rotating the adjusting component 11, so as to adjust the flow and distribution of the cooling oil according to the temperature and load requirements under different working conditions. The outer edge shape of the adjusting component 11 should be adapted to the shape of the inner peripheral wall of the cooling component 4, so that the adjusting component 11 can block the oil injection hole 5 to varying degrees when it is located on the inner peripheral wall of the cooling component 4.

[0043] More specifically, the bottom projection area of ​​the regulating component 11 is smaller than the bottom projection area of ​​the cooling component 4, that is, the outer perimeter of the regulating component 11 is smaller than the inner perimeter of the cooling component 4, but the heights of the two can be the same. Multiple oil injection holes 5 are provided on part of the peripheral wall of the cooling component 4, that is, a part of the cooling component 4 is not provided with oil injection holes 5. Therefore, when the regulating component 11 moves in the cooling component 4, it can completely block, not block, or partially block the oil injection holes 5, achieving different degrees of flow control.

[0044] In some embodiments, the overall area of ​​the regulating component 11 is the same as the area on the cooling component 4 where the oil injection hole 5 is not provided. When the regulating component 11 is located in this area, the oil injection hole 5 is completely unblocked, and the oil injection amount is the largest at this time. When the regulating component 11 is located in the area where the oil injection hole 5 is provided, the oil injection hole 5 is completely blocked, and the cooling component 4 cannot output cooling oil at this time. When the regulating component 11 partially overlaps with the area where the oil injection hole 5 is provided or the area where the oil injection hole 5 is not provided, the oil injection hole 5 is partially blocked. As the overlapping area between the regulating component 11 and the area where the oil injection hole 5 is provided gradually decreases, it means that the area where the oil injection hole 5 is blocked gradually decreases, thereby achieving different degrees of flow control to adapt to the degree of heat generation of the motor under different operating conditions.

[0045] As an improvement to this embodiment, the adjusting component 11 may be made of different materials, such as metal or alloy materials, and may be subjected to special surface treatment to ensure that the adjusting component 11 can move smoothly and is not easily worn during rotation.

[0046] In some embodiments, the regulating component 11 includes any one of an oil baffle, a ball valve and a plug. The oil baffle can be a plate-like structure used to block the oil injection hole 5, which can slide along the circumference of the cooling oil channel to change the area of ​​the blocked oil injection hole. The ball valve can be a spherical valve used to control the opening and closing of the oil injection hole 5, which can rotate to change the on-off of the oil injection hole 5. The plug can be a cylindrical component used to block the oil injection hole 5, which can move axially along the cooling oil channel to change the area of ​​the blocked oil injection hole 5. The oil baffle, ball valve and plug are simple in structure, easy to manufacture, flexible in adjustment, and easy to operate, which overall reduces the difficulty and complexity of processing the motor structural parts.

[0047] As a specific explanation of this embodiment, there are multiple oil injection holes 5, and the directions of the multiple oil injection holes 5 are different, and / or the spacing between the multiple oil injection holes 5 is different. Specifically, the cooling oil channel is connected with a large number of oil injection holes 5, and the multiple oil injection holes 5 are dispersed around the circumference of the cooling component 4.

[0048] In some embodiments, the angles and directions of all the fuel injection holes 5 may be the same; in some embodiments, the directions of some of the fuel injection holes 5 may be the same or different; in some embodiments, the directions of all the fuel injection holes 5 may be the same but the angles may be different; in some embodiments, the shapes and sizes of some of the fuel injection holes 5 may be different.

[0049] It can be understood that when the number of the fuel injection holes 5 is one, as the overlapping area between the regulating component 11 and the area where the fuel injection holes 5 are set changes, the area blocked by the fuel injection holes 5 changes, thereby achieving different degrees of flow control. When the number of the fuel injection holes 5 is multiple, as the overlapping area between the regulating component 11 and the area where the fuel injection holes 5 are set gradually decreases, the number of fuel injection holes 5 blocked changes, so that the overall blocked area of ​​the fuel injection holes 5 changes, thereby achieving different degrees of flow control.

[0050] In combination with the above embodiments, in one embodiment, a motor end cover 3 is provided on the motor body, a heat dissipation channel is provided in the motor end cover 3, and the heat dissipation channel is communicated with the cooling oil channel.

[0051] Specifically, the end of the motor housing is usually a motor end cover 3, which can be a covering part fixed to both ends of the motor housing. The end cover can be a circular metal part, and its outer contour is basically the same as the motor housing, so as to support the motor winding, cooling system, etc., and protect the various parts inside the motor from interference from the external environment such as dust. The motor end cover 3 is usually designed with a heat dissipation channel, which can effectively dissipate heat by circulating cooling oil to keep the motor operating temperature within a reasonable range.

[0052] It can be understood that the heat dissipation channel is usually arranged in the motor end cover 3 with a designed geometric structure to ensure that the cooling oil can flow. For example, the heat dissipation channel can be an annular channel milled inside the motor end cover 3. The specific shape and structure of the heat dissipation channel are related to the spatial layout of the motor end cover 3. The specific principle can be referred to the three-phase permanent magnet synchronous motor, and this embodiment will not be repeated in detail.

[0053] The cooling oil can effectively dissipate heat through the heat dissipation channel integrated in the motor end cover 3 to ensure that the motor can run efficiently for a long time. Different types and formulas can be selected according to different motor types, performances, working conditions, etc. In this embodiment, the cooling oil can include oil-based cooling oil, water-based cooling oil, anhydrous, non-aqueous cooling oil or engine oil.

[0054] Preferably, the oil injection hole 5 can be inclined in different directions such as the inside, outside or oblique direction of the motor end cover 3. For example, multiple oil injection holes 5 can be arranged in different directions, angles and spacings, so that the cooling oil can be fully and evenly contacted with the motor windings, rotors, stators and other structural parts on the motor end cover 3 according to the set path. Among them, the oil injection hole 5 can be at a certain angle with the cooling oil channel, and the angle can be an acute angle, a right angle or an obtuse angle.

[0055] In some embodiments, the rotation of the adjusting component 11 can be achieved through a sliding mechanism to ensure that the rotation is smooth and accurate, and the opening degree of the oil injection hole 5 can be accurately controlled.

[0056] As an improvement of this embodiment, the sliding mechanism includes a motor 7, a transmission gear 8, a sprocket 9 and at least one driven gear 10, the output end of the motor 7 is connected to the transmission gear 8, the transmission gear 8 is rotationally connected to each of the driven gears 10 through the sprocket 9, and each of the driven gears 10 is connected to the adjusting component 11.

[0057] Specifically, one end of the regulating component 11 inside the cooling oil channel is connected to the driven gear 10, and several driven gears 10 are connected to the fixed transmission gear 8 through the sprocket 9. The transmission gear 8 is fixedly connected to the micro drive motor 7, and the micro motor 7 is fixed on the motor end cover 3. The motor shaft can rotate freely and is well sealed. The rotation of the motor 7 drives the rotation of the transmission gear 8, and the rotation of the transmission gear 8 drives the movement of the sprocket 9. The movement of the sprocket 9 will drive the movement of the driven gear 10, thereby controlling the rotation of the regulating component 11 inside the cooling oil channel. During the rotation process, the regulating component 11 will block the oil injection hole 5 inside to varying degrees, thereby realizing the variable injection hole and flow control of the cooling oil channel.

[0058] Furthermore, in some specific embodiments:

[0059] When the motor is cold started, the internal oil temperature is low and the viscosity is high, which means that the fluidity and lubricity of the oil are poor and it cannot effectively lubricate the various components inside the engine. The motor 7 is controlled to rotate to drive the sprocket 9 to move, and the sprocket 9 will drive the adjustment component 11 inside the cooling oil channel to rotate. The rotation angle is designed to close all the oil injection holes 5 connected to the cooling oil channel, and the oil circuit is sealed. The heat generated by the engine itself is used to quickly heat up the oil. The oil quickly heats up to the operating temperature. At the operating temperature, the fluidity and lubricity of the oil are in the best state, which avoids friction and wear of the motor and improves durability and service life.

[0060] When the engine oil temperature reaches the operating temperature, when cooling is required, the oil injection hole 5 can be opened by the regulating component 11, and the engine oil plays a cooling function at this time.

[0061] When the motor is working under low load, the two micro motors 7 are controlled to rotate to drive the sprocket 9 to move. The sprocket 9 drives the adjusting component 11 inside the cooling oil channel to rotate. The rotation angle is designed to open a small part of the oil injection hole 5 connected to the cooling oil channel, and part of the engine oil is sprayed onto the motor winding at the motor end cover 3, which takes away the heat while reducing the oil stirring loss and improving the lubrication performance.

[0062] When the motor is working at medium load, the two micro motors 7 are controlled to rotate to drive the sprocket 9 to move, and the sprocket 9 drives the internal adjustment component 11 of the cooling oil channel to rotate. The rotation angle is designed to make the oil injection hole 5 connected to the cooling oil channel open half, and more oil will be sprayed onto the motor winding at the motor end cover 3. Combined with the oil pump speed control, the motor can be intelligently adjusted to operate in the optimal operating temperature range, with high power and high efficiency output, and good heat dissipation performance.

[0063] When the motor is working under heavy load, the two micromotors 7 are controlled to rotate to drive the sprocket 9 to move, and the sprocket 9 drives the adjusting component 11 inside the cooling oil channel to rotate. The rotation angle is designed so that all the oil injection holes 5 connected to the cooling oil channel are opened. The oil injection holes 5 have different directions and are large in number. The sprayed oil covers the largest area. A large amount of oil will be sprayed onto the motor windings, and the cooling capacity is enhanced. The heat generated by the rotor, stator and windings inside the motor is quickly taken away, and the motor temperature drops, ensuring the normal operation of the motor.

[0064] Optionally, an oil return groove is provided on the motor end cover 3 to collect the cooling oil flowing down from the surface of the motor winding for recycling.

[0065] Furthermore, in the above embodiment, the motor can be a drive motor and a generator, and an oil-cooled motor structure is proposed. Preferably, the drive motor winding 1 and the generator winding 2 are respectively integrated on the motor end cover 3. Specifically, the motor body includes the drive motor winding 1 and the generator winding 2, and the end faces of the drive motor winding 1 and the generator winding 2 share the motor end cover 3; wherein the drive motor winding 1 and the generator winding 2 are respectively provided with the cooling component 4.

[0066] It should be explained that the oil-cooled motor structure of the present application can be applied to new energy hybrid vehicles. Usually, the motor powertrain module inside a new energy hybrid vehicle includes a drive motor and a generator. The drive motor converts electrical energy into mechanical energy. It can use the battery to provide power, output torque and power, and drive the vehicle. The generator is a device that converts mechanical energy into electrical energy, which is used to charge the battery or directly supply the drive motor. The battery can store the electrical energy generated by the generator and can also provide power to the drive motor.

[0067] The motor winding end faces of the two motors participate in forming the motor end cover 3, that is, the two motors are connected to each other through the motor end cover 3 structure, the drive motor and the generator are integrated in one motor end cover 3, and the heat is dissipated through the heat dissipation channel, so as to save space, simplify the structure, and reduce the number of parts, thereby making the layout of the entire system more compact, improving energy utilization efficiency, achieving both heat dissipation efficiency and reducing the difficulty of processing motor structural parts, thereby meeting the requirements of new energy vehicles for high power density and high torque density.

[0068] It should be explained that the motor winding refers to the coil or winding in the corresponding motor, for example, the motor is a component composed of a wire coil or copper bar wound into a certain shape and specification on the stator or rotor. In this embodiment, the end faces of the motor winding inside the motor end cover 3 correspond to the drive motor and the generator respectively, and there is a certain isolation distance between the end faces of the two motor windings to prevent short circuit or interference. Among them, the battery can be connected to the motor end cover 3 through a connecting cable and a corresponding interface to be electrically connected to the drive motor on the motor end cover 3.

[0069] It should be understood that the motor end cover 3 generally includes other components such as seals, mounting bolts, sensors, valves and filters in addition to the end faces of the two motor windings integrated therein.

[0070] It can be understood that, corresponding to the cooling requirements of the drive motor and the generator, the heat dissipation channel on the motor end cover 3 has two outlets, for example, a cooling oil inlet is provided on one side of the motor end cover 3 for introducing cooling oil from the outside. Two cooling oil outlets are provided on the other side of the end cover for discharging the cooling oil. The heat dissipation channel introduces the cooling oil from the inlet and divides it into two branches in the channel, which are respectively led to the two outlets to correspond to the two motor windings.

[0071] Among them, one motor winding corresponds to one cooling component 4, and two sliding mechanisms are also provided on the motor end cover 3. The two micro motors 7 located on the end cover are respectively driven by sprockets 9 to realize the rotation of the internal adjustment components 11 of the two cooling components 4, thereby controlling the number and flow rate of the two groups of cooling oil channel injection holes 5.

[0072] In addition, the micro motors 7 on the two sliding mechanisms do not interfere with each other, and are suitable for different motor 7 starting strategies. The number and flow rate of the two cooling oil channel spray holes 5 can be independently and accurately controlled, which is intelligent, efficient, safe and reliable.

[0073] In combination with the above embodiments, in this embodiment, the cooling component 4 includes a plurality of cooling oil pipes, each of which is hollow inside to form each cooling oil channel; wherein each cooling oil pipe includes any one of a straight type, a curved type, a spiral type and a branch type.

[0074] Specifically, the cooling oil channel and the cooling oil pipe have the same shape, and the cooling oil pipe or the cooling oil channel can have a variety of shapes. The cooling oil channel can be a straight pipe, and the oil spray hole 5 is set along the length direction of the pipe. The cooling oil channel can be a curved pipe, which can better adapt to the layout of the internal space of the motor. The cooling oil pipe can be a spiral pipe, and its parameters such as pitch, angle, width and depth can be adjusted as needed. The cooling oil pipe can be a branch pipe, that is, the main oil channel (such as a straight pipe, a curved pipe or a spiral pipe) has a branch pipe in its extension direction to form a tree-like shape, and the branch pipe can extend to a specific position to provide more refined cooling control. The branch pipe can be opened in different positions and directions as needed, and the parameter ratio of the branch pipe and the main pipe can also be adjusted as needed.

[0075] In some embodiments, all cooling oil pipes may have the same shape; in some embodiments, some cooling oil pipes may have the same or different shapes; in some embodiments, all cooling oil pipes may have the same shape but different sizes; in some embodiments, some cooling oil pipes may have the same shape and size; in some embodiments, some cooling oil pipes may have different shapes and sizes.

[0076] In some embodiments, the number of driven gears 10 is the same as the number of cooling oil pipes, so that each driven gear 10 drives the adjusting component 11 in each cooling oil pipe to rotate in a one-to-one correspondence.

[0077] As a further improvement of this embodiment, the plurality of cooling oil pipes are interconnected. And the plurality of cooling oil pipes are arranged in any one of an arc shape, a ring shape, a curve shape and a grid shape. In this embodiment, the plurality of cooling oil pipes are interconnected to form an integral cooling component 4, and are connected to the cooling oil pipeline, so as to increase the flow and distribution of the cooling oil and improve the cooling effect and uniformity.

[0078] Specifically, multiple cooling oil pipes can be combined in different ways. In combination with the above embodiments, multiple cooling oil pipes of the same shape can be combined to form any one of an arc type, a ring type, a curve type and a grid type. For example, straight-line, curve-type and spiral-type cooling oil pipes can be arranged and combined along an arc path to form an arc-shaped cooling component 4 as a whole.

[0079] As an example of this embodiment, two cooling components 4 are the same. Each cooling component 4 includes five cooling oil pipes, four of which are placed vertically and the connecting line of the four is arc-shaped, and the four cooling oil pipes are connected through a horizontally placed cooling oil pipe, forming a grid-type cooling component 4 as a whole. A plurality of oil spray holes 5 are provided on each cooling oil pipe. In this way, the cooling oil can be introduced into the cooling oil channel from the inlet of the four cooling oil pipes, and then delivered to the motor winding along the grid-type flow path, and evenly sprayed onto the surface of the motor winding through the oil spray holes 5, so as to achieve effective heat dissipation.

[0080] In summary, by adopting the oil-cooled motor structure of the utility model, the structure drives the transmission gear 8 through two micro motors 7, the transmission gear 8 drives the sprocket 9, the sprocket 9 drives the driven gear 10, and the driven gear 10 drives the adjustment component 11 to rotate, and different rotation angles are set so that the oil spray hole 5 inside the cooling oil channel is blocked to different degrees, so as to realize the cooling of the motor on demand. The oil-cooled motor structure with variable spray holes realizes three different oil spray cooling methods: small spray holes, medium spray holes and multiple spray holes. These three methods correspond to the three operating conditions of small load, medium load and large load of the drive motor and generator respectively. It can effectively realize the cooling and heat dissipation of large loads to ensure the normal operation of the motor; reduce the oil stirring loss under small loads and improve the lubrication performance; intelligently regulate the motor to operate in the optimal working temperature range under medium loads, with both high power and high efficiency output, and good heat dissipation performance. At the same time, the present application can also realize the rapid warm-up of the motor during the cold start process and the rapid cooling under high temperature. When the motor is cold started, the adjustment component 11 inside can block all the oil spray holes 5, and the lubricating oil in the motor quickly heats up to the working temperature, reducing the friction and wear of the motor. When the motor load increases, the motor heat dissipation increases, and the regulating component 11 inside can rotate to open all the oil injection holes 5. At this time, the oil injection amount increases, the cooling capacity is enhanced, and the motor temperature decreases. In addition, the present application performs separate cooling control on the two motors and adapts to different motor speeds, different oil temperature application scenarios and different motor starting strategies.

[0081] In another embodiment of the present invention, a vehicle is provided, which is equipped with the oil-cooled motor structure as described above.

[0082] For the above-mentioned vehicle embodiment, since it is basically similar to the oil-cooled motor structure embodiment, the relevant parts can be referred to the partial description of the oil-cooled motor structure embodiment.

[0083] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0084] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. For the embodiments of the device, electronic device, computer-readable storage medium and computer program products containing instructions, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiments.

[0085] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. An oil-cooled motor structure, comprising a motor body, characterized in that: The motor body is provided with: Cooling components, with cooling oil channels inside; an oil injection hole, which is provided on the peripheral wall of the cooling component; and The adjusting component is arranged on the inner wall of the cooling component to adjust the oil spraying area of ​​the oil spraying hole.

2. The oil-cooled motor structure according to claim 1, characterized in that: The regulating component includes any one of an oil baffle, a ball valve and a plug.

3. The oil-cooled motor structure according to claim 1, characterized in that: A bottom projection area of ​​the adjusting component is smaller than a bottom projection area of ​​the cooling component.

4. The oil-cooled motor structure according to claim 1, characterized in that: The adjusting component is connected to the cooling component via a sliding mechanism, and the sliding mechanism is configured to drive the adjusting component to slide.

5. The oil-cooled motor structure according to claim 4, characterized in that: The sliding mechanism includes a motor, a transmission gear, a sprocket and at least one driven gear. The output end of the motor is connected to the transmission gear. The transmission gear is rotationally connected to each driven gear through the sprocket. Each driven gear is connected to the adjusting component.

6. The oil-cooled motor structure according to any one of claims 1 to 5, characterized in that: The cooling component includes a plurality of cooling oil pipes, each of which is hollow inside to form the cooling oil channel; wherein, Each of the cooling oil pipes includes any one of a straight type, a curved type, a spiral type and a branch type.

7. The oil-cooled motor structure according to claim 6, characterized in that: The plurality of cooling oil pipes are interconnected.

8. The oil-cooled motor structure according to claim 6, characterized in that: The plurality of cooling oil pipes are arranged in any one of an arc shape, a ring shape, a curve shape and a grid shape.

9. The oil-cooled motor structure according to any one of claims 1 to 5, characterized in that: The oil injection hole includes any one of a circular, an elliptical and a rectangular shape.

10. The oil-cooled motor structure according to any one of claims 1 to 5, characterized in that: There are a plurality of the fuel injection holes, and the directions of the plurality of fuel injection holes are different, and / or the intervals between the plurality of fuel injection holes are different.

11. The oil-cooled motor structure according to any one of claims 1 to 5, characterized in that: The motor body is provided with a motor end cover, the motor end cover is provided with a heat dissipation channel, and the heat dissipation channel is communicated with the cooling oil channel.

12. The oil-cooled motor structure according to claim 11, characterized in that: The oil spray hole is inclined toward the motor end cover.

13. The oil-cooled motor structure according to claim 11, characterized in that: The motor body comprises a drive motor winding and a generator winding, and the end surfaces of the drive motor winding and the generator winding share the motor end cover; wherein the drive motor winding and the generator winding are respectively provided with the cooling component.

14. A vehicle, characterized in that: An oil-cooled motor structure as described in any one of claims 1 to 13 is provided.

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