Motor structure, electric drive system and vehicle
By setting up interconnected oil channels in the motor structure and using lubricating oil to generate pressurized oil, the problem of insufficient motor cooling is solved, the cooling effect and lubrication performance of the motor are improved, and the efficiency of the electric drive system is improved.
Patent Information
- Application Number
- CN202422744408.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-11-11
AI Technical Summary
The temperature rise limit of the motor limits the power limit capability of the electric drive system, and the insufficient cooling effect affects the motor performance and the endurance of new energy vehicles.
A motor structure is designed in which interconnected oil passages are provided on the end cover and the housing, and lubricating oil is used to generate pressurized oil, thereby reducing oil loss and improving cooling effect.
By reducing oil loss and simplifying processing procedures, costs are reduced, the cooling effect of the motor is improved, and the lubrication performance of the motor and the efficiency of the electric drive system are improved.
Smart Images
Figure CN223363949U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of motor technology, and more specifically, to a motor structure, an electric drive system, and a vehicle. Background Art
[0002] The electric drive system is one of the key components of new energy vehicles. It contains a motor, and the motor's power limit is often limited by its temperature rise limit. Therefore, motor cooling is particularly important. Utility Model Content
[0003] The purpose of the embodiments of the present application is to provide a motor structure, an electric drive system and a vehicle that can generate pressurized oil, reduce oil loss and improve the cooling effect.
[0004] An embodiment of the present application provides a motor structure, including: an end cover structure, which is equipped with a first oil channel, the first oil channel including a first oil inlet hole and a first oil outlet hole that are connected to each other; a shell structure, which is connected to the end cover structure, and the shell structure is equipped with a second oil channel, the second oil channel including a second oil inlet hole and a second oil outlet hole that are connected to each other, wherein the second oil outlet hole is opposite to the first oil inlet hole.
[0005] In the above-mentioned implementation process, the end cover structure is provided with a first oil channel, and the shell structure is provided with a second oil channel. The first oil inlet hole of the first oil channel is opposite to the second oil outlet hole of the second oil channel, so that after the lubricating oil enters the second oil channel from the first oil inlet hole, it directly enters the first oil channel through the second oil inlet hole, and flows out from the first oil outlet hole, thereby achieving lubrication, generating pressurized oil, reducing oil loss, and improving the cooling effect.
[0006] In some embodiments, the first oil passage includes a first sub-oil passage and a second sub-oil passage, the first sub-oil passage is connected to the second sub-oil passage, and the second sub-oil passage is opposite to the second oil passage.
[0007] In the above implementation process, the first sub-oil channel is connected to the second sub-oil channel, and the second sub-oil channel is opposite to the second oil channel, which can reduce losses, is conducive to generating pressurized oil, and well solves the lubrication problem.
[0008] In some embodiments, the first sub-oil channels are distributed obliquely along a first direction.
[0009] In the above implementation process, the first sub-oil channel is tilted and distributed, which can simplify the processing process, reduce oil loss, facilitate the generation of pressurized oil, reduce blocking parts, reduce costs and improve efficiency.
[0010] In some embodiments, the angle between the first sub-oil channel and the second sub-oil channel is no greater than 90°. This can generate pressurized oil, reduce blocking parts, lower costs, and effectively solve the lubrication problem.
[0011] In some embodiments, the motor structure further includes a motor bearing, which is disposed at the first oil outlet. By disposing the motor bearing at the first oil outlet, lubricating oil can lubricate the motor bearing after passing through the first oil passage and the second oil passage, thereby solving the problem of motor bearing lubrication.
[0012] In some embodiments, the motor structure further includes a motor shaft connected to the motor bearing.
[0013] In some embodiments, the motor structure further includes a motor rotor, and the motor rotor is sleeved on the motor shaft.
[0014] In some embodiments, the motor structure further includes a stator assembly, wherein the stator assembly is located outside the motor rotor.
[0015] In a second aspect, the present application also provides an electric drive system, comprising a motor structure as described in any one of the above items.
[0016] Since the electric drive system provided in the second aspect includes a motor structure, the electric drive system has all the technical effects of the motor structure and will not be described in detail here.
[0017] In a third aspect, the present application also provides a vehicle comprising the electric drive system as described above.
[0018] Since the vehicle provided in the third aspect includes an electric drive system, the vehicle has all the technical effects of the electric drive system and will not be repeated here.
[0019] Other features and advantages of the present disclosure will be set forth in the following description, or some features and advantages may be inferred or unambiguously determined from the description, or may be learned by practicing the above-mentioned technology of the present disclosure.
[0020] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.
[0022] Figure 1 A schematic diagram of the structure of the motor provided in an embodiment of the present application.
[0023] Reference numerals
[0024] 100. End cover structure; 101. First oil channel; 1011. First sub-oil channel; 1012. Second sub-oil channel; 200. Housing structure; 201. Second oil channel; 300. Motor bearing. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application.
[0026] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.
[0027] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.
[0028] Furthermore, the terms "installed," "disposed," "provided with," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or point connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.
[0029] Furthermore, the terms "first," "second," etc., are primarily used to distinguish between different devices, elements, or components (which may or may not be of the same type and configuration), and are not intended to indicate or imply the relative importance or quantity of the devices, elements, or components indicated. Unless otherwise specified, "plurality" means two or more.
[0030] Example
[0031] At present, with the development of new energy vehicles, the requirements for battery life are getting higher and higher, and the requirements for motor performance and power density are also getting higher and higher. The lubrication of the motor plays a key role.
[0032] In the present application, the motor structure forms the first oil passage 101 by changing the processing method of the end cover structure 100. This processing method can avoid using sealing parts to seal the first oil passage 101, thereby reducing oil loss and reducing sealing parts.
[0033] Specifically, in the existing motor structure, when processing the oil channel of the end cover, it is generally chosen to process from the outside to the inside. Therefore, after the end cover and the shell are assembled, one end of the oil channel needs to be sealed. The present application solution chooses to process from the inside of the end cover structure 100 to the position corresponding to the oil channel of the shell structure 200, and then the oil channel of the end cover structure 100 is connected with the oil channel of the shell structure 200. The oil channel position on the inside of the end cover structure 100 is used to lubricate the corresponding parts, and this processing method does not require the inside and outside of the end cover structure 100 to be connected, thereby avoiding the use of blocking parts.
[0034] like Figure 1 As shown, an embodiment of the present application provides a motor structure, including: an end cover structure 100, which is equipped with a first oil channel 101, and the first oil channel 101 includes a first oil inlet hole and a first oil outlet hole that are connected to each other; a shell structure 200, which is connected to the end cover structure 100, and the shell structure 200 is equipped with a second oil channel 201, and the second oil channel 201 includes a second oil inlet hole and a second oil outlet hole that are connected to each other, wherein the second oil outlet hole is opposite to the first oil inlet hole.
[0035] Exemplarily, the end cover structure 100 is located on one side of the shell structure 200, and the end cover structure 100 is fixed to the shell structure 200 by bolts or other fixing means, so that the second oil outlet is just located above the first oil inlet, thereby realizing the conduction between the first oil channel 101 and the second oil channel 201.
[0036] It should be noted that the first oil outlet hole corresponds to a component of the motor structure (such as the motor bearing 300), which is used to lubricate the component. The processing of the first oil channel 101 starts from the position of the first oil outlet hole, and then processes along a preset direction to the position of the second oil channel 201. Subsequently, the first oil channel 101 and the second oil channel 201 are connected to form the first oil inlet hole. Since the starting position of the processing is the first oil outlet hole, it does not need to be blocked by sealing parts, which reduces oil loss, reduces costs, and improves efficiency.
[0037] The second oil inlet hole is used for lubricating oil to sequentially enter the second oil passage 201 and the first oil passage 101 , and the second oil inlet hole can be used to connect with paths such as the oil pump oil passage and the oil return passage.
[0038] In the above-mentioned implementation process, the end cover structure 100 is provided with a first oil channel 101, and the shell structure 200 is provided with a second oil channel 201. The first oil inlet hole of the first oil channel 101 is opposite to the second oil outlet hole of the second oil channel 201, so that after the lubricating oil enters the second oil channel 201 from the first oil inlet hole, it directly enters the first oil channel 101 through the second oil inlet hole, and flows out from the first oil outlet hole, thereby achieving lubrication, generating pressurized oil, reducing oil loss, and improving the cooling effect.
[0039] Please refer to Figure 1 The first oil passage 101 includes a first sub-oil passage 1011 and a second sub-oil passage 1012 . The first sub-oil passage 1011 is connected to the second sub-oil passage 1012 , and the second sub-oil passage 1012 faces the second oil passage 201 .
[0040] In the above implementation process, the first sub-oil channel 1011 is connected to the second sub-oil channel 1012, and the second sub-oil channel 1012 is opposite to the second oil channel 201, which can reduce losses, is conducive to generating pressurized oil, and well solves the lubrication problem.
[0041] In some embodiments, the first sub-oil passages 1011 are distributed obliquely along a first direction. Figure 1 Taking the perspective as an example, the first sub-oil channel 1011 is tilted so that the height of the first oil outlet hole of the first sub-oil channel 1011 is lower than the height of one end thereof close to the first oil inlet hole.
[0042] In the above implementation process, the first sub-oil channel 1011 is tilted and distributed, which can simplify the processing process, reduce oil loss, facilitate the generation of pressurized oil, reduce blocking parts, reduce costs, and improve efficiency.
[0043] In some embodiments, the angle between the first sub-oil channel 1011 and the second sub-oil channel 1012 is no greater than 90°, and can be set to 30°, 45°, or 60°, etc. This can generate pressurized oil, reduce blocked parts, lower costs, and effectively solve the lubrication problem.
[0044] In some embodiments, the motor structure further includes a motor bearing 300, which is disposed at the first oil outlet. By disposing the motor bearing 300 at the first oil outlet, lubricating oil can lubricate the motor bearing 300 after passing through the first oil passage 101 and the second oil passage 201, thereby resolving the lubrication problem of the motor bearing 300.
[0045] In some embodiments, the motor structure further includes a motor shaft, and the motor shaft is connected to the motor bearing 300 .
[0046] In some embodiments, the motor structure further includes a motor rotor, and the motor rotor is sleeved on the motor shaft.
[0047] In some embodiments, the motor structure further includes a stator assembly, wherein the stator assembly is located outside the motor rotor.
[0048] In a second aspect, the present application also provides an electric drive system, comprising the motor structure as described above.
[0049] Since the electric drive system provided in the second aspect includes a motor structure, the electric drive system has all the technical effects of the motor structure and will not be described in detail here.
[0050] In a third aspect, the present application further provides a vehicle comprising the electric drive system described above. The vehicle may be a fuel vehicle, a gas vehicle, or a new energy vehicle, wherein the new energy vehicle may be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle.
[0051] Since the vehicle provided in the third aspect includes an electric drive system, the vehicle has all the technical effects of the electric drive system and will not be repeated here.
[0052] In all embodiments of the present application, "big" and "small" are relative, "more" and "less" are relative, and "up" and "down" are relative. The expressions of such relative terms will not be elaborated in the embodiments of the present application.
[0053] It should be understood that the phrases “in this embodiment,” “in an embodiment of the present application,” or “as an optional implementation” mentioned throughout the specification mean that specific features, structures, or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, “in this embodiment,” “in an embodiment of the present application,” or “as an optional implementation” appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in one or more embodiments in any suitable manner. Those skilled in the art should also be aware that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily required for the present application.
[0054] In the various embodiments of the present application, it should be understood that the size of the serial numbers of the above-mentioned processes does not necessarily mean the order of execution. The order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.
[0055] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included within the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.
Claims
1. A motor structure, characterized in that: include: an end cover structure, wherein the end cover structure is provided with a first oil passage, wherein the first oil passage includes a first oil inlet hole and a first oil outlet hole communicating with each other; The shell structure is connected to the end cover structure, and the shell structure is configured with a second oil channel, the second oil channel includes a second oil inlet hole and a second oil outlet hole that are connected to each other, wherein the second oil outlet hole is opposite to the first oil inlet hole.
2. The motor structure according to claim 1, characterized in that: The first oil passage includes a first sub-oil passage and a second sub-oil passage. The first sub-oil passage is connected to the second sub-oil passage, and the second sub-oil passage is opposite to the second oil passage.
3. The motor structure according to claim 2, characterized in that: The first sub-oil channels are distributed obliquely along a first direction.
4. The motor structure according to claim 3, characterized in that: An included angle between the first sub-oil channel and the second sub-oil channel is no greater than 90°.
5. The motor structure according to claim 1, characterized in that: The motor structure further includes a motor bearing, and the motor bearing is arranged at the first oil outlet.
6. The motor structure according to claim 5, characterized in that: The motor structure further includes a motor shaft, and the motor shaft is connected to the motor bearing.
7. The motor structure according to claim 6, characterized in that: The motor structure further includes a motor rotor, which is sleeved on the motor shaft.
8. The motor structure according to claim 7, characterized in that: The motor structure further includes a stator assembly, which is located outside the motor rotor.
9. An electric drive system, characterized in that: The motor structure comprises the motor structure according to any one of claims 1 to 8.
10. A vehicle, characterized in that: Comprising the electric drive system as claimed in claim 9.