Electric drive system and vehicle

Abstract

The embodiment of the utility model provides an electric driving system and a vehicle, the electric driving system comprises an electric driving shell, the electric driving shell comprises a shell assembly and an end cover, the shell assembly is connected with the end cover, and a cavity is defined by the shell assembly and the end cover; the oil blocking structure is detachably connected with the shell assembly and / or the end cover, and the oil blocking structure is located below the cavity. The end cover is connected with the shell assembly, and the oil baffle structure is detachably connected with the shell assembly and / or the end cover, so that the tooth surface arranged in the cavity can be lubricated, meanwhile, the design of the structural characteristics ensures that the liquid level is not too high, so that the oil stirring loss is not increased, full lubrication is realized, and the lubrication effect is improved.

Description

Technical Field

[0001] The present application relates to the field of electric drive technology, and more specifically, to an electric drive system and a vehicle. Background Art

[0002] With the increasing depletion of fossil energy and worsening environmental pollution, electric vehicles are becoming increasingly popular among users. The electric drive system is the core component of an electric vehicle. It is a system composed of multiple components that work together as a whole, including the drive motor, motor controller, transmission, air compressor, water pump, high-voltage junction box, vehicle controller, onboard charger, and DC converter.

[0003] Among related technologies, electric drive systems have the advantages of high speed and high efficiency. However, traditional structural designs cannot provide accurate lubrication flow distribution for the cooling and lubrication system, resulting in uneven flow distribution, leading to failure and serious loss of hydraulic energy. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide an electric drive system and a vehicle that can fully lubricate and improve the lubrication effect.

[0005] In a first aspect, an embodiment of the present application provides an electric drive system, comprising: an electric drive housing, comprising a housing assembly and an end cover, the housing assembly being connected to the end cover, and the housing assembly and the end cover being enclosed to form a chamber; an oil retaining structure, which is detachably connected to the housing assembly and / or the end cover, and the oil retaining structure is located below the chamber.

[0006] During the above-mentioned implementation process, the end cover is connected to the housing assembly, and the oil retaining structure is disassembled to connect the housing assembly and / or the end cover, so that the tooth surface arranged in the chamber can be lubricated. At the same time, the design of this structural feature ensures that the liquid level will not be too high, resulting in an increase in oil stirring loss, thereby achieving sufficient lubrication and improving the lubrication effect.

[0007] In some embodiments, the oil-blocking structure includes a first oil-blocking member, which is detachably connected to a side of the end cover close to the housing assembly.

[0008] In the above implementation process, by disassembling the first oil baffle connected to the end cover, not only can the lubricating oil at the chamber position be stored and the tooth surface be lubricated, but the first oil baffle can also be easily replaced, thereby improving the lubrication effect.

[0009] In some embodiments, the oil retaining structure further includes a fixing member, one end of which is provided with the first oil retaining member and connected to the end cap. The fixing member secures the first oil retaining member to the end cap to store lubricating oil, thereby improving lubrication and preventing oil churning losses due to excessively high liquid levels.

[0010] In some embodiments, the oil baffle structure further includes a second oil baffle located on a side of the housing assembly close to the end cover, which can store lubricating oil in the chamber and lubricate the tooth surface, thereby improving the lubrication effect.

[0011] In some embodiments, the distance between the oil retaining structure and the chamber is 4 to 12 mm, thereby ensuring that the level of the lubricating oil does not rise too high, thereby increasing the oil churning loss and improving the lubrication effect.

[0012] In some embodiments, the oil retaining structure is configured with an arc segment that is recessed in a direction away from the cavity, so as to store lubricating oil at the cavity position for lubricating the tooth surface, thereby improving the lubrication effect.

[0013] In some embodiments, the chamber includes an input cavity configured to accommodate an input shaft, and the oil retaining structure is disposed below the input cavity, thereby storing lubricating oil at the input cavity for lubricating the tooth surface, thereby improving the lubrication effect.

[0014] In some embodiments, the input shaft is configured to be distributed along the left-right direction, and along the left-right direction, the input shaft is configured with a tooth surface, and the length of the tooth surface is no greater than the length of the oil retaining structure, so as to ensure sufficient lubrication of the tooth surface.

[0015] In some embodiments, the chamber further includes an output chamber and an intermediate chamber, and the oil-blocking structure further includes an oil-blocking portion, and the oil-blocking portion is disposed in the output chamber and / or the intermediate chamber.

[0016] In a second aspect, the present application also provides a vehicle comprising an electric drive system as described in any one of the above items.

[0017] Since the vehicle provided in the second aspect includes an electric drive system, the vehicle has all the technical effects of the electric drive system and will not be described in detail here.

[0018] 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.

[0019] 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

[0020] 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.

[0021] Figure 1 A schematic diagram of the structure of the electric drive system provided in an embodiment of the present application;

[0022] Figure 2 A schematic structural diagram of the end cover of the electric drive system provided in an embodiment of the present application;

[0023] Figure 3 A schematic structural diagram of the housing assembly of the electric drive system provided in an embodiment of the present application.

[0024] Reference numerals

[0025] 100. Electric drive housing; 101. Housing assembly; 102. End cover; 103. Input chamber; 200. Oil retaining structure; 201. First oil retaining member; 202. Second oil retaining member; 300. Input shaft; 301. Tooth surface. DETAILED DESCRIPTION

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] Example

[0032] The electric drive system of new energy vehicles is the core power component. The new energy electric drive system is a three-in-one system, including a motor, a gear chamber and a controller. Through it, the electrical energy in the battery can be converted into kinetic energy for the vehicle to move. It is like the combination of the engine and gearbox of a fuel vehicle.

[0033] The gear cavity of the electric drive system houses several reducer gears, differential gears, and bearings. Lubricating oil is also contained within the gear cavity to lubricate the gears and bearings. The gears are partially immersed in the oil, which, during operation, transfers the oil to the meshing gears, ensuring optimal lubrication.

[0034] like Figure 1-Figure 3As shown, in the first aspect, an embodiment of the present application provides an electric drive system, including: an electric drive housing 100, including a housing assembly 101 and an end cover 102, the housing assembly 101 is connected to the end cover 102, and the housing assembly 101 and the end cover 102 are enclosed to form a chamber; an oil retaining structure 200, which is detachably connected to the housing assembly 101 and / or the end cover 102, and the oil retaining structure 200 is located below the chamber.

[0035] Exemplarily, the shell assembly 101 is configured with a first closing surface, and the end cover 102 is configured with a second closing surface. After the shell assembly 101 and the end cover 102 are fixed by bolts or other fixing methods, the first closing surface and the second closing surface are fitted together, so that the oil retaining structure 200 is located below the chamber for collecting lubricating oil.

[0036] During the above-mentioned implementation process, the end cover 102 is connected to the housing assembly 101, and the oil retaining structure 200 is disassembled to connect the housing assembly 101 and / or the end cover 102, so as to lubricate the tooth surface 301 arranged in the chamber. At the same time, the design of this structural feature ensures that the liquid level will not be too high to cause an increase in oil stirring loss, thereby achieving sufficient lubrication and improving the lubrication effect.

[0037] like Figure 2 As shown, the oil blocking structure 200 includes a first oil blocking member 201 , which includes but is not limited to a plastic member (or plastic member). The first oil blocking member 201 is detachably connected to a side of the end cover 102 close to the housing assembly 101 .

[0038] In the above implementation process, by disassembling the first oil baffle 201 connected to the end cover 102, not only can the lubricating oil at the chamber position be stored and the tooth surface 301 be lubricated, but the first oil baffle 201 can also be easily replaced, thereby improving the lubrication effect.

[0039] In some embodiments, the oil retaining structure 200 further includes a fixing member (not shown), including but not limited to a bolt, one end of which is passed through the first oil retaining member 201 and connected to the end cover 102. The first oil retaining member 201 is fixed to the end cover 102 by the fixing member to store lubricating oil, thereby improving lubrication and preventing oil churning losses caused by excessively high liquid levels.

[0040] like Figure 3 As shown, the oil baffle structure 200 further includes a second oil baffle 202, which is located on a side of the housing assembly 101 close to the end cover 102. The second oil baffle 202 can store the lubricating oil at the cavity position and lubricate the tooth surface 301, thereby improving the lubrication effect.

[0041] It should be noted that the second oil baffle 202 is integrally formed with the housing assembly 101 , and the shapes of the first oil baffle 201 and the second oil baffle 202 can be consistent or inconsistent.

[0042] In some embodiments, the distance between the oil retaining structure 200 and the chamber is in the range of 4 to 12 mm, for example, the distance between the oil retaining structure 200 and the chamber is set to 4 mm, 6 mm, or 8 mm, etc. This ensures that the liquid level of the lubricating oil does not rise too high, thereby increasing the oil churning loss and improving the lubrication effect.

[0043] In some embodiments, the oil retaining structure 200 is configured with an arc segment that is recessed in a direction away from the cavity, so as to store lubricating oil at the cavity position for lubricating the tooth surface 301 and improving the lubrication effect.

[0044] In some embodiments, the chamber includes an input cavity 103 configured to accommodate an input shaft 300, and the oil retaining structure 200 is disposed below the input cavity 103. Lubricating oil at the input cavity 103 can be stored for lubricating the tooth surface 301, thereby improving the lubrication effect.

[0045] like Figure 1 As shown, the input shaft 300 is arranged to be distributed along the left-right direction, and along the left-right direction, the input shaft 300 is provided with a tooth surface 301, the length of the tooth surface 301 is not greater than the length of the oil retaining structure 200, which can ensure that the tooth surface 301 is fully lubricated.

[0046] In some embodiments, the chamber further includes an output chamber and an intermediate chamber, and the oil-blocking structure 200 further includes an oil-blocking portion, which is disposed in the output chamber and / or the intermediate chamber. The oil-blocking portion and the electric drive housing 100 can be integrally formed.

[0047] In a second aspect, the present application further provides a vehicle comprising the electric drive system as described above, wherein the vehicle may be a fuel vehicle, a gas vehicle, or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle.

[0048] Since the vehicle provided in the second aspect includes an electric drive system, the vehicle has all the technical effects of the electric drive system and will not be described in detail here.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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. An electric drive system, characterized in that: include: An electric drive housing, comprising a housing assembly and an end cover, wherein the housing assembly is connected to the end cover, and the housing assembly and the end cover enclose a chamber; An oil retaining structure is detachably connected to the housing assembly and / or the end cover, and the oil retaining structure is located below the chamber.

2. The electric drive system according to claim 1, characterized in that: The oil blocking structure includes a first oil blocking member, which is detachably connected to a side of the end cover close to the housing assembly.

3. The electric drive system according to claim 2, characterized in that: The oil-blocking structure further includes a fixing member, one end of which passes through the first oil-blocking member and is connected to the end cover.

4. The electric drive system according to claim 2, characterized in that: The oil blocking structure further includes a second oil blocking member, which is located on a side of the housing assembly close to the end cover.

5. The electric drive system according to any one of claims 1 to 4, characterized in that: The distance between the oil retaining structure and the chamber is in the range of 4 to 12 mm.

6. The electric drive system according to claim 5, characterized in that: The oil retaining structure is configured with an arc segment, and the arc segment is concave in a direction away from the chamber.

7. The electric drive system according to claim 5, characterized in that: The chamber includes an input chamber configured to accommodate an input shaft, and the oil retaining structure is configured below the input chamber.

8. The electric drive system according to claim 7, characterized in that: The input shaft is configured to be distributed along the left-right direction, and along the left-right direction, the input shaft is configured with a tooth surface, and the length of the tooth surface is not greater than the length of the oil retaining structure.

9. The electric drive system according to claim 7, characterized in that: The chamber further includes an output chamber and an intermediate chamber, and the oil-blocking structure further includes an oil-blocking portion, which is disposed in the output chamber and / or the intermediate chamber.

10. A vehicle, characterized in that: Comprising the electric drive system according to any one of claims 1 to 9.

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