Motor assembly and power device

Abstract

The utility model belongs to the technical field of motors, and provides a motor assembly and a power device, the motor assembly comprises a first shell, a second shell and an oil pipe assembly; a first assembly groove is formed in the first shell; a second assembly groove and a first limiting structure are formed in the second shell; the oil pipe assembly comprises a pipe body and a connecting part, the connecting part is arranged on the outer wall of the pipe body in a protruding mode and integrally formed on the pipe body, the pipe body is provided with a first pipe section and a second pipe section, the central axis of the first pipe section is parallel to the central axis of the second pipe section, the first pipe section is inserted into the first pairing groove, and the second pipe section is inserted into the second pairing groove. A second limiting structure is formed on the connecting part, and the first limiting structure is matched with the second limiting structure in an inserted mode. The motor assembly aims at solving the technical problem that when a motor assembly is closed, the assembling smoothness of an oil pipe assembly and a first shell is low.

Description

Technical Field

[0001] The present application relates to the field of motor technology, and in particular to a motor assembly and a power device. Background Art

[0002] New energy vehicles refer to vehicles that use unconventional automotive fuels to drive the vehicle. The most common method currently is to use electricity to drive the vehicle with an electric motor. Electric drives tend to be highly integrated, high-speed and efficient; the performance of electric drives requires cooling and lubrication to ensure.

[0003] In the motor structure, an oil pipe is generally configured, through which lubricating oil is transported or sprayed to the stator in the motor. The oil pipe is detachably connected to the motor housing. Generally, the motor has a first housing and a second housing, and the second housing is used to cover the first housing for assembly. The first housing and the second housing are respectively provided with mounting grooves, and both ends of the oil pipe are respectively inserted into the mounting grooves. However, in the process of installing the oil pipe and assembling the motor, one end of the oil pipe is first inserted into the mounting groove of the first housing, and when the second housing is assembled with the first housing, it is necessary to make the protruding end of the oil pipe smoothly inserted into the mounting groove of the second housing.

[0004] In the related art, since the inner diameter of the mounting groove of the first shell is larger than the outer diameter of the oil pipe, after the oil pipe is inserted into the mounting groove, there is a gap between the outer wall of the oil pipe and the groove wall of the mounting groove. Since the length of the oil pipe is relatively large, the protruding end of the oil pipe is prone to a large deviation from the central axis. When the second shell and the first shell are combined, a large misalignment is prone to occur between the protruding end of the oil pipe and the mounting groove of the second shell. As a result, when the motor is combined, the protruding end of the oil pipe is prone to interference with the mounting groove of the second shell, making it difficult to smoothly assemble and connect, thereby affecting the smoothness of the combination and affecting work efficiency. Utility Model Content

[0005] The purpose of the present application is to provide a motor assembly and a power device, aiming to solve the technical problem of low smoothness of the oil pipe assembly and the first housing assembly to the ground when the motor assembly is assembled.

[0006] In a first aspect, the present application provides a motor assembly, comprising:

[0007] A first housing is formed with a first set of pairs of grooves;

[0008] A second shell is connected to the first shell to form a receiving space, and the second shell is formed with a second set of grooves and a first limiting structure;

[0009] The oil pipe assembly includes a pipe body and a connecting component, wherein the connecting component is protruding from the outer wall of the pipe body and is integrally formed on the pipe body. The pipe body has a first pipe section and a second pipe section that are arranged parallel to the central axis. The first pipe section is plugged into the first set of grooves, and the second pipe section is plugged into the second set of grooves. A second limiting structure is formed on the connecting component, and the first limiting structure is plugged into and matched with the second limiting structure.

[0010] In this example, a connecting component is integrally formed on the tube body, so that a second limiting structure is formed on the connecting component, and a first limiting structure is arranged on the second shell body, so that the first limiting structure and the second limiting structure are plugged together, and the plugging direction of the first limiting structure relative to the second limiting structure is parallel to the plugging direction of the second pipe segment relative to the second group of grooves, thereby limiting the second pipe segment of the tube body relative to the second group of grooves in a direction deviating from the central axis, thereby improving the position accuracy of the first pipe segment, and when the first shell body and the second shell body are combined, the first pipe segment can be more easily and smoothly plugged into the first group of grooves accurately, thereby improving the matching accuracy of the first pipe segment and the first group of grooves, which is beneficial to improving work efficiency.

[0011] In one embodiment, a plugging direction of the first limiting structure relative to the second limiting structure is parallel to a plugging direction of the second pipe section relative to the second set of grooves.

[0012] In this example, the plug-in direction of the first limiting structure relative to the second limiting structure is parallel to the plug-in direction of the second pipe segment relative to the second set of grooves, thereby limiting the second pipe segment of the pipe body relative to the second set of grooves in a direction deviating from the central axis, thereby improving the position accuracy of the first pipe segment. When the first shell and the second shell are combined, the first pipe segment can be more easily and smoothly plugged into the first set of grooves accurately, thereby improving the matching accuracy of the first pipe segment and the first set of grooves, which is beneficial to improving work efficiency.

[0013] In one embodiment, a first positioning structure is further formed on the second shell, and a second positioning structure is also formed on the connecting component, and the first positioning structure is plugged into and matched with the second positioning structure; the plugging direction of the first positioning structure relative to the second positioning structure is parallel to the plugging direction of the first limiting structure relative to the second limiting structure.

[0014] In this example, the first positioning structure and the second positioning structure are plugged into each other, thereby forming a limit for the second pipe section of the pipe body relative to the second group of grooves in a direction deviating from the central axis, and cooperate with the first limiting structure and the second limiting structure to further improve the positioning accuracy of the first pipe section. When the first shell and the second shell are combined, the first pipe section can be more easily and smoothly plugged into the first group of grooves accurately, thereby improving the matching accuracy of the first pipe section and the first group of grooves, which is conducive to improving work efficiency.

[0015] In one embodiment, the first limiting structure includes a limiting groove formed in the second shell, and the second limiting structure includes a limiting body protruding from the connecting component, and the limiting body is plugged into and matched with the limiting groove.

[0016] In this example, the second limiting structure adopts a limiting body, so that the connecting component and the limiting body can be formed as one piece, which is beneficial to ensuring the relative position accuracy of the limiting body and the second pipe segment. The limiting groove and the limiting body are plugged into each other to form a limit for the second pipe segment in the second set of grooves, so that the position of the first pipe segment is not easily deviated, thereby ensuring the assembly accuracy.

[0017] In one embodiment, the first positioning structure includes a positioning groove formed in the second shell, and the second positioning structure includes a positioning body protruding from the connecting component, and the positioning body is plugged into and matched with the positioning groove.

[0018] In this example, the second positioning structure adopts a positioning body, so that the connecting component and the positioning body can be integrally formed, which is beneficial to ensuring the relative position accuracy of the positioning body and the second pipe segment, and the positioning groove and the positioning body are plugged in and matched to form a limit for the second pipe segment in the second set of grooves, and cooperate with the plug-in cooperation of the limiting body and the limiting groove, thereby further improving the position accuracy of the first pipe segment. When the first shell and the second shell are combined, the first pipe segment can be more easily and smoothly plugged into the first set of grooves, thereby improving the matching accuracy of the first pipe segment and the first set of grooves, which is beneficial to improving work efficiency.

[0019] In one embodiment, the limiting body is connected to the positioning body, and the limiting body is protruding from the end of the positioning body; the limiting groove is formed at the bottom of the positioning groove.

[0020] In this example, the limiting body, the positioning body and the tube body can be integrally formed and prepared, so that the relative positions of the tube body, the positioning body and the limiting body are more precise. The limiting body is plugged into the limiting groove to limit the deviation of the second tube section of the tube body relative to the second set of grooves. The positioning body is plugged into the positioning groove to limit the deviation of the second tube section of the tube body relative to the second set of grooves, and can further reduce the influence of the matching deviation between the limiting body and the limiting groove on the positioning accuracy of the tube body, which can further reduce the probability of the second tube section being deflected and improve the accuracy of the position of the first tube section of the tube body.

[0021] In one embodiment, a groove wall on one side of the positioning groove facing the second group of grooves is penetrated to form a side groove opening, and the positioning body penetrates the side groove opening to be connected with the connecting component.

[0022] In this example, the positioning body can be connected to the connecting component through a through position, so that the positioning body is connected to the side of the connecting component, so that the combination effect of the positioning body and the positioning groove can have the effect of key and key groove matching; the positioning body and the connecting component are arranged flush, which facilitates the integrated molding of the connecting component and the positioning body, improves the connection strength, and reduces production costs.

[0023] In one embodiment, the first limiting structure includes a limiting body protruding from the second shell, and the second limiting structure includes a limiting groove opened in the connecting component, and the limiting body is plugged into and matched with the limiting groove.

[0024] In this example, the second shell and the limiting body can be integrally formed, which is conducive to ensuring the relative position accuracy between the limiting body and the second set of grooves. The tube body and the connecting component are integrally formed, and the limiting groove is integrally formed and opened on the connecting component, which ensures the relative position accuracy between the limiting groove and the second pipe segment. The limiting groove and the limiting body are plugged into each other to form a limit on the second pipe segment in the second set of grooves, so that the position of the first pipe segment is not easily deviated, thereby ensuring the assembly accuracy.

[0025] In one embodiment, the first positioning structure includes a positioning body protruding from the second shell, and the second positioning structure includes a positioning groove opened in the connecting component, and the positioning body is plugged into and matched with the positioning groove.

[0026] In this example, the second shell and the positioning body can be integrally formed, which is conducive to ensuring the relative position accuracy of the positioning body and the second set of grooves. The tube body and the connecting component are integrally formed, and the positioning groove is integrally formed and opened on the connecting component, which ensures the relative position accuracy of the positioning groove and the second pipe segment. The positioning groove and the positioning body are plugged in and matched to form a limit for the second pipe segment in the second set of grooves, and cooperate with the plug-in cooperation of the limiting body and the limiting groove, thereby further improving the position accuracy of the first pipe segment. When the first shell and the second shell are combined, the first pipe segment can be more easily and smoothly plugged into the first set of grooves accurately, thereby improving the matching accuracy of the first pipe segment and the first set of grooves, which is conducive to improving work efficiency.

[0027] In one embodiment, the limiting body is connected to the positioning body, and the limiting body is protruding from the end of the positioning body; the limiting groove is formed at the bottom of the positioning groove.

[0028] In this example, the limiter, the positioning body and the second shell can be integrally formed and prepared, so that the relative positions of the second shell, the positioning body and the limiter are more precise. The limiter is plugged into the limiter groove to limit the deviation of the second pipe section of the pipe body relative to the second set of grooves. The positioning body is plugged into the positioning groove to limit the deviation of the second pipe section of the pipe body relative to the second set of grooves, and can also further reduce the influence of the matching deviation between the limiter and the positioning groove on the positioning accuracy of the pipe body. The plug-in cooperation between the positioning body and the positioning groove and the plug-in cooperation between the limiter and the limiter groove restrict each other, which can further reduce the probability of deviation of the second pipe section and improve the accuracy of the position of the first pipe section of the pipe body.

[0029] In one embodiment, a groove wall on one side of the positioning groove facing the second pair of grooves is penetrated to form a side groove opening, and the positioning body penetrates the side groove opening to be connected with the second shell.

[0030] In this example, a through side notch is formed on the groove wall of the positioning groove facing away from the second pipe section, so that the positioning body can be connected to the boss structure of the second shell through the through position, so that the combination effect of the positioning body and the positioning groove can have the effect of key and keyway matching, thereby improving the positioning and limiting effects.

[0031] In one embodiment, a top connection structure is further formed on the first shell, and the top connection structure is connected to the tube body and forms a top connection force on the tube body toward the second shell.

[0032] In this example, the top connection structure is used to apply extrusion force to the tube body in the direction toward the second shell, so that the tube body can be limited along the central axis direction of the first tube segment or the second tube segment, reducing shaking or movement of the tube body between the second shell and the first shell.

[0033] In one embodiment, the top connection structure is disposed at the bottom of the first set of grooves, so that the top connection structure is top-connected with the end of the first pipe section.

[0034] In this example, the top connection structure is arranged at the bottom of the first set of grooves, which is beneficial to simplifying the external structure of the first set of grooves and making it more convenient to limit the first pipe section.

[0035] In one of the embodiments, a plurality of oil injection holes are formed on the tube wall of the tube body.

[0036] In this example, the interior of the motor assembly is lubricated by spraying lubricating oil. By opening a plurality of oil spray holes on the tube body, the lubricating oil can be sprayed into the accommodating space in a dispersed manner to achieve the purpose of lubrication, which is beneficial to improving the lubrication effect.

[0037] In one embodiment, the tube body further includes a third tube segment, the third tube segment is connected between the first tube segment and the second tube segment, and the central axis of the third tube segment is set at an angle to the central axis of the first tube segment or the central axis of the second tube segment.

[0038] In this example, the first pipe segment and the second pipe segment are arranged in parallel, the third pipe segment can be in a straight line or a curved shape, etc., the first pipe segment and the second pipe segment can be staggered and arranged in parallel in a direction perpendicular to the central axis, and the third pipe segment can be connected between the first pipe segment and the second pipe segment, thereby enabling the pairing and connection of special-shaped pipe bodies.

[0039] In a second aspect, the present application provides a power device comprising a motor assembly in any one of the above embodiments.

[0040] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, 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 present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0042] Figure 1 A schematic diagram of the structure of a vehicle provided in some embodiments of the present application;

[0043] Figure 2A schematic diagram of the three-dimensional structure of a motor assembly provided in some embodiments of the present application;

[0044] Figure 3 This is a schematic diagram of the end structure of a motor assembly according to some embodiments of the present application;

[0045] Figure 4 for Figure 3 AA View Figure 1 ;

[0046] Figure 5 for Figure 4 Schematic diagram of the structure of the CNOOC pipe assembly;

[0047] Figure 6 for Figure 3 AA View Figure 2 ;

[0048] Figure 7 for Figure 6 Schematic diagram of the structure of the CNOOC pipe assembly;

[0049] Figure 8 for Figure 3 AA View Figure 3 ;

[0050] Fig. 9 for Figure 8 Schematic diagram of the structure of the CNOOC pipe assembly;

[0051] Fig.10 for Figure 3 AA View Figure 4 ;

[0052] Fig.11 for Fig.10 Schematic diagram of the structure of the CNOOC pipe assembly;

[0053] Fig.12 for Fig.10 Schematic diagram of the decomposition structure;

[0054] Fig.13 for Fig.12 Axonometric Figure 1 ;

[0055] Fig.14 for Fig.12 Axonometric Figure 2 ;

[0056] Fig.15 for Figure 3 AA View Figure 5 ;

[0057] Fig.16 for Fig.15 Schematic diagram of the structure of the CNOOC pipe assembly;

[0058] Fig.17 for Figure 3 AA View Figure 6 ;

[0059] Fig.18 for Fig.17 Schematic diagram of the structure of the CNOOC pipe assembly;

[0060] Fig.19 for Figure 3 AA View Figure 7 ;

[0061] Fig. 20 for Fig.19 Schematic diagram of the structure of the CNOOC pipe assembly;

[0062] Fig.21 for Fig.19 Schematic diagram of the decomposition structure;

[0063] Fig. 22 A schematic diagram of the structure of a motor assembly provided for some other embodiments of the present application.

[0064] Description of reference numerals:

[0065] 1000, vehicle; 100, motor assembly; 10, first housing; 11, first set of grooves; 12, top connection structure; 20, second housing; 22, second set of grooves; 23, first limiting structure; 24, first positioning structure; 241, side notch; 25, boss structure; 30, oil pipe assembly; 31, pipe body; 311, oil injection hole; 312, first pipe section; 313, second pipe section; 314, third pipe section; 32, connecting component; 33, second limiting structure; 34, second positioning structure; 341, groove side; 35, oil inlet pipe; 40, accommodating space; 50, stator; 200, controller; 300, battery; X, groove depth direction of the second set of grooves; Y, groove depth direction of the first set of grooves; a, preset angle. DETAILED DESCRIPTION

[0066] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0067] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0068] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0069] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0070] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0071] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0072] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0073] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0074] The motor is one of the core components of a vehicle. It is used to provide power for the vehicle. Electric drives tend to be highly integrated, high-speed and high-efficiency. The performance of the motor needs cooling and lubrication to ensure.

[0075] In the related art, an oil pipe is configured in the motor, the oil pipe is connected to an oil pump, the oil pump delivers lubricating oil into the oil pipe, and the oil pipe delivers or sprays lubricating oil to the stator in the motor, thereby achieving the purpose of lubricating the stator in the motor.

[0076] The motor has a shell, and the shell has a accommodating space inside. The stator, rotor, gear, etc. are installed in the accommodating space. The shell plays a protective role on the outside. The shell can adopt a variety of structures. In some embodiments, the shell can include a first shell and a second shell. The first shell and the second shell cover each other, and the first shell and the second shell jointly define an accommodating space for accommodating the stator, rotor, gear, etc. The second shell can be a hollow structure with an opening at one end, and the first shell can be a plate-like structure to form a cover plate structure. The first shell covers the open side of the second shell, so that the first shell and the second shell jointly define the accommodating space; the first shell and the second shell can also be hollow structures with one side opening, and the open side of the first shell covers the open side of the second shell. Of course, the shell formed by the first shell and the second shell can be a variety of shapes, such as a cylinder, a cuboid, etc.

[0077] The first housing has a first set of grooves, the second housing has a second set of grooves, the oil pipe (i.e., the pipe body described below) has two ends, namely, a first pipe section and a second pipe section. When the motor is assembled, the second pipe section of the oil pipe needs to be inserted into the second set of grooves, and the first pipe section of the oil pipe needs to be inserted into the first set of grooves. The motor assembly means that the first housing and the second housing cover each other, so that the motor forms a closed structure.

[0078] The installation process of the oil pipe in the motor assembly is that the second pipe section of the oil pipe is first inserted into the second set of grooves of the second shell, and the first pipe section of the oil pipe extends out of the second set of grooves. Then the first shell and the second shell are assembled and combined, so that the first pipe section of the oil pipe is inserted into the first set of grooves, and the connection between the oil pipe and the first shell and the second shell is completed.

[0079] However, in the related art, in order to enable the second pipe section of the oil pipe to be quickly assembled with the second group of grooves, it is necessary to make a clearance fit between the second pipe section and the second group of grooves, that is, the groove diameter (outer diameter or diameter of the groove opening) of the second group of grooves is larger than the outer diameter of the second pipe section of the oil pipe, so that a gap is formed between the outer wall of the oil pipe and the groove wall of the second group of grooves; due to the existence of the gap and the large length of the oil pipe, the first pipe section of the oil pipe has a large swing angle and deflection distance in the direction of the central axis of the oil pipe. When the first shell and the second shell are combined, the central axis of the first pipe section will have a large deflection distance relative to the central axis of the first group of grooves. After the deflection, the first pipe section is easily misaligned with the groove opening of the first group of grooves, making it difficult for the first pipe section to be smoothly inserted into the first group of grooves, thereby affecting the smoothness of the combination, and requiring the staff to repeatedly adjust, thereby affecting the work efficiency; it should be noted that the central axis of the groove structure defined in the present application is an axis passing through the center of the groove bottom and along the groove depth direction.

[0080] Therefore, the present application provides a motor assembly 100, which can reduce the degree of deflection of the tube body 31 in the oil pipe assembly 30, by configuring a second limiting structure 33 on the tube body 31 and configuring a first limiting structure 23 on the second shell 20, so that the first limiting structure 23 and the second limiting structure 33 are plugged and matched, thereby reducing the swing angle and deflection distance of the second pipe section 313 of the tube body 31 in the second group of grooves 22, thereby improving the positioning accuracy of the tube body 31 in the oil pipe assembly 30, making the positioning between the first pipe section 312 of the tube body 31 and the first group of grooves 11 more precise, and the first pipe section 312 can be more smoothly inserted into the first group of grooves 11.

[0081] Specifically, combined Figure 1-3 As shown, the first aspect of the embodiment of the present application provides a motor assembly 100, which can be applied to a power device. The motor assembly 100 can be applied to the power device as a power element to provide power to the power device. The power device may include but is not limited to electric toys, electric tools, battery vehicles, electric vehicles, ships, spacecraft, etc. Among them, electric toys may include fixed or mobile electric toys, such as electric car toys, electric ship toys, and electric airplane toys, etc., and spacecraft may include airplanes, rockets, space shuttles, and spacecrafts, etc.

[0082] For the convenience of description, the following embodiments are described by taking a vehicle 1000 as an example of a power device according to an embodiment of the present application.

[0083] Please refer to Figure 1 , Figure 1A schematic diagram of the structure of a vehicle 1000 provided for some embodiments of the present application. The vehicle 1000 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, etc. A motor assembly 100 is disposed inside the vehicle 1000, and the motor assembly 100 may be disposed at the bottom, the head or the tail of the vehicle 1000. The motor assembly 100 may be used to provide driving power to the vehicle 1000, for example, the motor assembly 100 may be used as a power element for the wheels of the vehicle 1000 to move. The vehicle 1000 may also include a controller 200 and a battery 300, and the controller 200 is used to control the battery 300 to power the motor assembly 100.

[0084] The vehicle 1000 is equipped with a motor assembly 100. According to some embodiments of the present application, referring to Figure 2-7 As shown, the motor assembly 100 includes a first housing 10, a second housing 20 and an oil pipe assembly 30; wherein the first housing 10 is formed with a first set of grooves 11; the second housing 20 is connected to the first housing 10 to form a receiving space 40, and the second housing 20 is formed with a second set of grooves 22 and a first limiting structure 23; the oil pipe assembly 30 includes a pipe body 31 and a connecting component 32, the connecting component 32 is convexly arranged on the outer wall of the pipe body 31, and the connecting component 32 is integrally formed on the pipe body 31, and the pipe body 31 has a central axis relative to the central axis. The first pipe section 312 and the second pipe section 313 are arranged in parallel, the first pipe section 312 is plugged into the first set of grooves 11, and the second pipe section 313 is plugged into the second set of grooves 22; a second limiting structure 33 is formed on the connecting component 32, the first limiting structure 23 is plugged into the second limiting structure 33, and the plugging direction of the first limiting structure 23 relative to the second limiting structure 33 is parallel to the plugging direction of the second pipe section 313 relative to the second set of grooves 22, so as to limit the movement of the pipe body 31 away from the central axis of its second pipe section 313.

[0085] Among them, a second group of grooves 22 are formed on the second shell 20, and the second group of grooves 22 can be opened on the boss structure 25 formed on the inner wall of the second shell 20. The groove contour shape of the second group of grooves 22 is consistent with the cross-sectional outer contour shape of the second pipe section 313 of the tube body 31. The groove size of the second group of grooves 22 is slightly larger than the cross-sectional outer contour size of the second pipe section 313, so that the second pipe section 313 can be quickly inserted into the second group of grooves 22, and a clearance fit can be formed between the second pipe section 313 and the second group of grooves 22.

[0086] The outer contour shape of the second set of grooves 22 is, but not limited to, circular, elliptical or polygonal.

[0087] The first housing 10 is formed with a first set of grooves 11, which can be opened on a boss structure formed on the inner wall of the first housing 10. The notch profile of the first set of grooves 11 is consistent with the cross-sectional outer profile of the first pipe section 312 of the pipe body 31. The notch size of the first set of grooves 11 is equal to or slightly larger than the cross-sectional outer profile of the first pipe section 312, so that the first pipe section 312 can be inserted into the first set of grooves 11, and a clearance fit or transition fit can be formed between the first pipe section 312 and the first set of grooves 11. The notch outer profile of the first set of grooves 11 is, but not limited to, circular, elliptical or polygonal.

[0088] The groove depth direction Y of the first group of grooves 11 is parallel to the groove depth direction X of the second group of grooves 22, wherein the groove depth direction refers to the direction from the groove opening toward the groove bottom or the direction from the groove bottom toward the groove opening. When the first pipe section 312 is plugged into the first group of grooves 11, the groove depth direction can also be understood as the direction of the central axis of the first pipe section 312, or when the second pipe section 313 is plugged into the second group of grooves 22, the groove depth direction can also be understood as the direction of the central axis of the second pipe section 313. When the tube body 31 is a straight line, the groove openings of the first group of grooves 11 are arranged opposite to the groove openings of the second group of grooves 22. When the tube body 31 is a special-shaped tube body 31 such as a curve or a broken line, the central axis of the first tube section 312 of the tube body 31 and the central axis of the second tube section 313 are parallel but staggered, and the groove openings of the first group of grooves 11 and the groove openings of the second group of grooves 22 are staggered.

[0089] The first shell 10 is connected to the second shell 20 , and the first shell 10 covers or snaps onto the second shell 20 to form a receiving space 40 . The receiving space 40 is used to install structural components such as the stator 50 , the rotor, and the gears.

[0090] The oil pipe assembly 30 includes a pipe body 31 and a connecting member 32. The pipe body 31 can be a straight pipe body 31 or a special-shaped pipe body 31 structure. For example, the pipe body 31 includes a first pipe section 312, a second pipe section 313, and a third pipe section 314 connected between the first pipe section 312 and the second pipe section 313. The central axis of the first pipe section 312 is parallel to the central axis of the second pipe section 313. The central axis of the third pipe section 314 can be at any angle of 0°-90° with the central axis of the first pipe section 312 or the second pipe section 313. Fig. 22 It is understood that when the angle is 0°, the tube body 31 is in a straight line.

[0091] The connecting component 32 is used to position and limit the tube body 31. The connecting component 32 is integrally formed on the tube body 31. In the process of manufacturing the tube body 31, the connecting component 32 is manufactured and formed together, thereby ensuring the connection strength between the connecting component 32 and the tube body 31. The connecting component 32 is convexly arranged on the outer wall of the tube body 31, so as to facilitate the arrangement of the second limiting structure 33 on the connecting component 32. The external shape of the connecting component 32 can be plate-shaped or rod-shaped. For example, the connecting component 32 is a connecting plate protruding from the outside of the tube body 31. The convex extension direction of the connecting plate can be at an angle of 0°-90° with the central axis direction of the tube body 31. For example, the convex extension direction of the connecting plate is perpendicular to the central axis direction of the tube body 31, wherein the central axis of the tube body 31 refers to the central axis of the first tube segment 312 or the central axis of the second tube segment 313.

[0092] The first limiting structure 23 and the second limiting structure 33 are plugged and matched to limit the second pipe section 313 from deflecting or swinging in the second group of grooves 22 toward the groove depth direction X (or the center axis direction) that deviates from the second group of grooves 22. Among them, the plugging direction of the first limiting structure 23 relative to the second limiting structure 33 can be set at a preset angle a with the plugging direction of the second pipe section 313 relative to the second group of grooves 22. The range of the preset angle a can be 0°-90°, but does not include 90°. For example, the preset angle a can include 0°, 10°, 20°, 30°, 45° or 60°, etc. It can be seen that when the preset angle a is 0°, the plugging direction of the first limiting structure 23 relative to the second limiting structure 33 is parallel to the plugging direction of the second pipe section 313 relative to the second group of grooves 22.

[0093] Understandably, combined Figure 6 and Figure 7 As shown, the plug-in direction of the first limiting structure 23 relative to the second limiting structure 33 can be set at a preset angle a with the plug-in direction of the second pipe segment 313 relative to the second group of grooves 22, that is, the groove depth direction X of the second group of grooves 22 (or the center axis direction of the second pipe segment 313) and the plug-in direction of the first limiting structure 23 relative to the second limiting structure 33 are set at a preset angle a. For example, when the first limiting structure 23 is a protruding structure and the second limiting structure 33 is a groove body structure, or when the first limiting structure 23 is a groove body structure and the second limiting structure 33 is a protruding structure, the groove depth direction of the second group of grooves 22 (or the direction of the center axis of the second pipe segment 313) and the direction of the center axis of the first limiting structure 23 or the second limiting structure 33 are set at a preset angle a.

[0094] It can be seen that when the oil pipe assembly 30 is connected to the second housing 20, the second pipe section 313 of the pipe body 31 is plugged into the second group of grooves 22. At the same time, the second limiting structure 33 on the connecting component 32 is plugged into and matched with the first limiting structure 23. It can be seen that while the second pipe section 313 of the pipe body 31 is limited by the second group of grooves 22, the first limiting structure 23 can also limit the second limiting structure 33, that is, limit the pipe body 31, so that even if there is a gap between the second pipe section 313 and the groove wall of the second group of grooves 22, the first limiting structure 23 can still limit the second limiting structure 33. The plug-in cooperation between the limiting structure 23 and the second limiting structure 33 can also limit the swing of the second pipe segment 313 relative to the second group of grooves 22, thereby ensuring that the pipe body 31 is not prone to swing or tilt away from the central axis, so that the accuracy of the position of the first pipe segment 312 is improved. When the first shell 10 and the second shell 20 are combined, the first pipe segment 312 is more likely to be quickly combined with the first group of grooves 11. After the position accuracy of the first pipe segment 312 is improved, the efficiency of combining and assembling the first shell 10 and the second shell 20 is also improved.

[0095] The second limiting structure 33 is formed on the connecting member 32. In one case, it can be combined with Figure 4-11 As shown, the second limiting structure 33 can be a protruding structure convexly arranged on the connecting member 32, the protruding structure is integrally formed on the connecting member 32, and the protruding structure, the connecting member 32 and the tube body 31 are integrally formed, so that the position and size of the protruding structure are more accurate, and the accuracy of connection with the first limiting structure 23 is improved. At this time, the first limiting structure 23 is a groove structure opened on the second shell 20; in another case, it can be combined with Figure 15-20 As shown, the second limiting structure 33 can be a groove structure opened on the connecting part 32, and the groove structure, the connecting part 32 and the tube body 31 are integrally prepared to ensure that the position and size of the groove structure are more precise, thereby improving the accuracy of the connection with the first limiting structure 23. At this time, the first limiting structure 23 is a protruding structure integrally formed on the second shell 20.

[0096] Therefore, it can be understood that the plug-in direction of the first limiting structure 23 relative to the second limiting structure 33 can be set at a preset angle a with the plug-in direction of the second pipe segment 313 relative to the second group of grooves 22, that is, the outward extension direction of the protruding structure or the groove depth direction of the groove body structure is set at a preset angle a with the central axis direction of the second pipe segment 313 or the groove depth direction X of the second group of grooves 22, so that when the second pipe segment 313 is plugged into the second group of grooves 22, the first limiting structure 23 cooperates with the second limiting structure 33 for plugging, thereby limiting the second pipe segment 313 relative to the second group of grooves 22 in the direction deviating from the central axis.

[0097] In this example, a connecting component 32 is integrally formed on the tube body 31, so that a second limiting structure 33 is formed on the connecting component 32, and a first limiting structure 23 is set on the second shell 20, so that the first limiting structure 23 and the second limiting structure 33 are plugged together, so that the plugging direction of the first limiting structure 23 relative to the second limiting structure 33 and the plugging direction of the second pipe segment 313 relative to the second group of grooves 22 are set at a preset angle a, thereby limiting the second pipe segment 313 of the tube body 31 relative to the second group of grooves 22 in a direction deviating from the central axis, thereby improving the position accuracy of the first pipe segment 312, and when the first shell 10 and the second shell 20 are combined, the first pipe segment 312 can be more easily and smoothly plugged into the first group of grooves 11, thereby improving the matching accuracy of the first pipe segment 312 and the first group of grooves 11, which is beneficial to improving work efficiency.

[0098] In some examples, reference Figure 4 and Figure 5 As shown, the plugging direction of the first limiting structure 23 relative to the second limiting structure 33 is parallel to the plugging direction of the second pipe section 313 relative to the second set of grooves 22 .

[0099] Specifically, one situation can be combined with Figure 4-11 As shown, the second limiting structure 33 is a protruding structure, and the first limiting structure 23 is a groove structure; in another case, the second limiting structure 33 is a protruding structure, and the first limiting structure 23 is a groove structure. Figure 15-20 As shown, the second limiting structure 33 is a groove structure, and the first limiting structure 23 is a protruding structure. Then, the plugging direction of the first limiting structure 23 relative to the second limiting structure 33 is parallel to the plugging direction of the second pipe segment 313 relative to the second set of grooves 22, and the outward convex extension direction of the protruding structure or the groove depth direction of the groove structure is parallel to the central axis direction of the second pipe segment 313 or the groove depth direction X of the second set of grooves 22, so that when the second pipe segment 313 is plugged into the second set of grooves 22, the first limiting structure 23 and the second limiting structure 33 are plugged in the same direction, thereby limiting the second pipe segment 313 relative to the second set of grooves 22 in the direction deviating from the central axis.

[0100] In this example, a connecting component 32 is integrally formed on the tube body 31, so that a second limiting structure 33 is formed on the connecting component 32, and a first limiting structure 23 is set on the second shell 20, so that the first limiting structure 23 and the second limiting structure 33 are plugged together, so that the plugging direction of the first limiting structure 23 relative to the second limiting structure 33 is parallel to the plugging direction of the second pipe segment 313 relative to the second group of grooves 22, thereby limiting the second pipe segment 313 of the tube body 31 relative to the second group of grooves 22 in a direction deviating from the central axis, thereby improving the position accuracy of the first pipe segment 312, and when the first shell 10 and the second shell 20 are combined, the first pipe segment 312 can be more easily and smoothly plugged into the first group of grooves 11, thereby improving the matching accuracy of the first pipe segment 312 and the first group of grooves 11, which is beneficial to improving work efficiency.

[0101] In some examples, reference Figure 4-14 As shown, a first positioning structure 24 is also formed on the second shell 20, and a second positioning structure 34 is also formed on the connecting part 32. The first positioning structure 24 and the second positioning structure 34 are plugged together; the plugging direction of the first positioning structure 24 relative to the second positioning structure 34 is parallel to the plugging direction of the first limiting structure 23 relative to the second limiting structure 33.

[0102] Specifically, the first positioning structure 24 and the second positioning structure 34 are plugged and matched, so that the plugging direction of the first positioning structure 24 relative to the second positioning structure 34 is parallel to the plugging direction of the first limiting structure 23 relative to the second limiting structure 33. It can be seen that when the oil pipe assembly 30 is connected to the second shell 20, the second pipe section 313 of the pipe body 31 is plugged into the second group of grooves 22, and at the same time, the second limiting structure 33 on the connecting component 32 is plugged and matched with the first limiting structure 23, and at the same time, the second positioning structure 34 is plugged and matched with the first positioning structure 24. It can be seen that when the second pipe section 313 of the pipe body 31 is limited by the second group of grooves 22, the first limiting structure 23 can also limit the second limiting structure 33, and the first positioning structure 24 can also limit the second positioning structure 34. The plugging and matching of the first positioning structure 24 and the second positioning structure 34 When the tube body 31 is limited, the insertion and matching errors of the first limiting structure 23 and the second limiting structure 33 can be compensated, that is, the tube body 31 can be doubly limited, so that even if there is a gap between the second tube segment 313 and the groove wall of the second group of grooves 22, the insertion and matching of the first limiting structure 23 and the second limiting structure 33 and the insertion and matching of the first positioning structure 24 and the second positioning structure 34 can also limit the swing of the second tube segment 313 relative to the second group of grooves 22, thereby reducing the probability of the tube body 31 swinging or tilting away from the central axis, so that the accuracy of the position of the first tube segment 312 is improved. When the first shell 10 and the second shell 20 are combined, the first tube segment 312 is more likely to be quickly combined with the first group of grooves 11. After the position accuracy of the first tube segment 312 is improved, the efficiency of combining and assembling the first shell 10 and the second shell 20 is improved.

[0103] The second positioning structure 34 is formed on the connecting part 32. In one case, the second positioning structure 34 may be a protruding structure protruding from the connecting part 32, and the protruding structure is integrally formed on the connecting part 32. The protruding structure is integrally formed with the connecting part 32 and the tube body 31, thereby making the position and size of the protruding structure more precise and improving the accuracy of the connection with the first positioning structure 24. At this time, the first positioning structure 24 is a groove structure opened on the second shell 20; in another case, the second positioning structure 34 may be a groove structure opened on the connecting part 32, and the groove structure is integrally formed with the connecting part 32 and the tube body 31, thereby ensuring that the position and size of the groove structure are more precise and improving the accuracy of the connection with the first positioning structure 24. At this time, the first positioning structure 24 is a protruding structure integrally formed on the second shell 20.

[0104] Therefore, it can be understood that the plug-in direction of the first positioning structure 24 relative to the second positioning structure 34 is parallel to the plug-in direction of the first limiting structure 23 relative to the second limiting structure 33, that is, the plug-in direction of the first positioning structure 24 relative to the second positioning structure 34 and the plug-in direction of the second pipe segment 313 relative to the second group of grooves 22 are set at a preset angle a, that is, the outward convex extension direction of the protruding structure or the groove depth direction of the groove body structure and the central axis direction of the second pipe segment 313 or the groove depth direction X of the second group of grooves 22 are set at a preset angle a, so that when the second pipe segment 313 is plugged into the second group of grooves 22, the first positioning structure 24 is plugged into the second positioning structure 34, thereby limiting the second pipe segment 313 relative to the second group of grooves 22 in the direction deviating from the central axis.

[0105] In this example, on the basis of forming the second limiting structure 33 on the connecting component 32 and setting the first limiting structure 23 on the second shell 20, a second positioning structure 34 is further provided on the connecting component 32 and the first positioning structure 24 is provided on the second shell 20, so that the first limiting structure 23 and the second limiting structure 33 are plugged together, and the plugging direction of the first positioning structure 24 relative to the second positioning structure 34 is parallel to the plugging direction of the first positioning structure 24 relative to the second positioning structure 34, so that the first positioning structure 24 and the second positioning structure 34 are plugged together. The positioning structure 34 is plugged in in the same direction, so as to form a limit for the second pipe segment 313 of the pipe body 31 in the direction deviating from the central axis relative to the second group of grooves 22, and cooperates with the first limiting structure 23 and the second limiting structure 33, thereby further improving the position accuracy of the first pipe segment 312. When the first shell 10 and the second shell 20 are combined, the first pipe segment 312 can be more easily and smoothly accurately plugged into the first group of grooves 11, thereby improving the matching accuracy of the first pipe segment 312 and the first group of grooves 11, which is conducive to improving work efficiency.

[0106] In some examples, reference Figure 8-11 As shown, the plugging direction of the first positioning structure 24 relative to the second positioning structure 34 is parallel to the plugging direction of the first limiting structure 23 relative to the second limiting structure 33, and is parallel to the plugging direction of the second pipe segment 313 relative to the second group of grooves 22, wherein the plugging direction of the second pipe segment 313 relative to the second group of grooves 22 can be understood as the groove depth direction X of the second group of grooves 22.

[0107] Specifically, the plug-in direction of the first positioning structure 24 relative to the second positioning structure 34 is parallel to the plug-in direction of the first limiting structure 23 relative to the second limiting structure 33, and is parallel to the plug-in direction of the second pipe segment 313 relative to the second group of grooves 22, which means that the outward extension direction of the two protruding structures or the groove depth direction of the two groove structures are parallel to the central axis direction of the second pipe segment 313 or the groove depth direction of the second group of grooves 22, so that when the second pipe segment 313 is plugged into the second group of grooves 22, the two protruding structures are respectively plugged into the two groove structures (that is, the first limiting structure 23 is plugged into the second limiting structure 33 in the same direction, and the first positioning structure 24 is plugged into the second positioning structure 34 in the same direction), thereby limiting the second pipe segment 313 relative to the second group of grooves 22 in the direction deviating from the central axis.

[0108] In some examples, combined Figure 4-7 As shown, the first limiting structure 23 includes a limiting groove opened in the second shell 20, and the second limiting structure 33 includes a limiting body protruding from the connecting component 32, and the limiting body is plugged into and matched with the limiting groove.

[0109] Specifically, the first limiting structure 23 is a groove structure, that is, a limiting groove, and the groove depth direction of the first limiting structure 23 is set at a preset angle a with the groove depth direction X of the second set of grooves 22. The second limiting structure 33 is a protruding structure, that is, a limiting body, and the limiting body can be cylindrical and protrude outwardly and extend on the surface of the connecting component 32, and the central axis of the second limiting structure 33 is set at a preset angle a with the central axis direction of the second pipe section 313. For example, when the preset angle a is 0°, the groove depth direction of the limiting groove is parallel to the groove depth direction X of the second set of grooves 22, the extension axis or the central axis of the limiting body is parallel to the central axis direction of the second pipe segment 313, and the distance between the central axis of the limiting body and the central axis of the second pipe segment 313 is equal to the distance between the central axis of the limiting groove and the central axis of the second set of grooves 22. Therefore, when the second pipe segment 313 is opposite to the second set of grooves 22, the limiting body is opposite to the limiting groove, so that the second pipe segment 313 is inserted into the second set of grooves 22 and the limiting body can be inserted into the limiting groove at the same time. The limiting body can be integrally formed with the connecting component 32 and the tube body 31 to ensure the coaxiality of the limiting body and the tube body 31, so that the limiting body and the limiting groove can be accurately assembled.

[0110] In this example, the second limiting structure 33 adopts a limiting body, so that the connecting component 32 and the limiting body can be formed as one piece, which is beneficial to ensuring the relative position accuracy of the limiting body and the second pipe segment 313. The limiting groove and the limiting body are plugged into each other to form a limit for the second pipe segment 313 in the second group of grooves 22, so that the position of the first pipe segment 312 is not easily deviated, thereby ensuring the assembly accuracy.

[0111] In some examples, combined Figure 8-14As shown, the first positioning structure 24 includes a positioning groove opened in the second shell 20, and the second positioning structure 34 includes a positioning body protruding from the connecting component 32, and the positioning body is plugged into and matched with the positioning groove.

[0112] Specifically, the first positioning structure 24 is a groove structure, that is, a positioning groove, the central axis direction of the positioning groove is parallel to the central axis direction of the limiting groove, and the central axis direction of the positioning groove is set at a preset angle a with the groove depth direction X of the second set of grooves 22. The second positioning structure 34 is a protruding structure, that is, a positioning body, which can be cylindrically convex and extend on the connecting component 32, and the extension axis (or central axis) of the positioning body is parallel to the central axis direction of the limiting body. For example, when the preset angle a is 0°, the groove depth direction of the positioning groove is parallel to the groove depth direction of the limiting groove, and is parallel to the groove depth direction X of the second set of grooves 22, the extension axis of the positioning body is parallel to the central axis of the limiting body, and the central axis of the positioning body is parallel to the central axis of the second pipe segment 313, and the distance between the central axis of the positioning body and the central axis of the second pipe segment 313 is equal to the distance between the central axis of the positioning groove and the central axis of the second set of grooves 22. Therefore, when the second pipe segment 313 is opposite to the second set of grooves 22, the positioning body is opposite to the positioning groove, so that the second pipe segment 313 is inserted into the second set of grooves 22 and the positioning body can be inserted into the positioning groove at the same time. The positioning body can be integrally formed with the connecting component 32 and the tube body 31 to ensure the coaxiality of the positioning body and the tube body 31, so that the positioning body and the positioning groove can be accurately assembled.

[0113] In this example, the second positioning structure 34 adopts a positioning body, so that the connecting component 32 and the positioning body can be integrally formed, which is beneficial to ensuring the relative position accuracy of the positioning body and the second pipe segment 313, and the second pipe segment 313 is limited in the second group of grooves 22 by plug-in cooperation with the positioning groove and the positioning body, and cooperates with the plug-in cooperation of the limiting body and the limiting groove, thereby further improving the position accuracy of the first pipe segment 312. When the first shell 10 and the second shell 20 are combined, the first pipe segment 312 can be more easily and smoothly plugged into the first group of grooves 11, thereby improving the assembly accuracy of the first pipe segment 312 and the first group of grooves 11, which is beneficial to improving work efficiency.

[0114] In some examples, combined Figure 10-14 As shown, the limiting body is connected to the positioning body, and the limiting body is protruded from the end of the positioning body; the limiting groove is formed at the bottom of the positioning groove.

[0115] Specifically, taking the preset angle a of 0° as an example, the positioning body is connected to the connecting component 32, the positioning body is extended along a direction parallel to the central axis of the second pipe section 313, and the limiting body is connected to the extended end of the positioning body. It can be seen that the limiting body protrudes outside the extended end of the positioning body; the groove depth direction of the positioning groove is parallel to the groove depth direction X of the second group of grooves 22, the limiting groove is formed at the groove bottom of the positioning groove, and the groove depth direction of the limiting groove is parallel to the groove depth direction of the positioning groove.

[0116] When the second tube section 313 of the tube body 31 is arranged opposite to and inserted into the second set of grooves 22, the positioning body is opposite to the positioning groove, and the limiting body is arranged opposite to the limiting groove, so that when the positioning body is inserted into the positioning groove, the limiting body is correspondingly inserted into the limiting groove.

[0117] In this example, the limiting body is connected to the positioning body, and the limiting body, the positioning body and the tube body 31 can be integrally formed and prepared, so that the relative positions of the tube body 31, the positioning body and the limiting body are more precise, and the limiting body is plugged into the limiting groove to limit the deflection of the second tube segment 313 of the tube body 31 relative to the second group of grooves 22, and can reduce the influence of the gap between the second tube segment 313 and the second group of grooves 22 on the position of the tube body 31, and the positioning body is plugged into the positioning groove to limit the deflection of the second tube segment 313 of the tube body 31 relative to the second group of grooves 22, and can further reduce the influence of the matching deviation between the limiting body and the limiting groove on the positioning accuracy of the tube body 31, and the plug-in cooperation between the positioning body and the positioning groove and the plug-in cooperation between the limiting body and the limiting groove restrict each other, which can further reduce the probability of the second tube segment 313 being deflected, and improve the accuracy of the position of the first tube segment 312 of the tube body 31.

[0118] In some examples, combined Figure 10-13 As shown, a groove wall on one side of the positioning groove facing the second group of grooves 22 is penetrated to form a side groove opening 241 , and the positioning body penetrates through the side groove opening 241 to be connected with the connecting component 32 .

[0119] Specifically, the positioning body is connected to the side of the connecting component 32. For example, the connecting component 32 is a plate body with a preset thickness. The positioning body is connected to the side of the plate body, and the central axis direction of the positioning body is parallel to the thickness direction of the connecting component 32. The height of the positioning body in the central axis direction can be equal to, less than, or greater than the thickness of the connecting component 32. Fig.11 As shown, the height of the positioning body in the direction of its axis is equal to the thickness of the connecting component 32, and the two end faces of the positioning body facing each other in the direction of its axis can be arranged flush with the two plate surfaces of the connecting component 32 respectively, so that the positioning body and the connecting component 32 can be integrally formed.

[0120] The side surface of the positioning body away from the connecting component 32 may be a semicircular curved surface, and correspondingly, the groove wall of the positioning groove opposite to the side notch is a semicircular curved surface, so that the positioning body can be matched and plugged into the positioning groove.

[0121] In this example, a through side slot 241 is formed on the slot wall of the positioning slot close to the second group of slots 22, so that the positioning body can be connected to the connecting component 32 at the through position, so that the positioning body is connected to the side of the connecting component 32, so that the matching effect of the positioning body and the positioning slot can have the effect of a key and a key slot matching; the positioning body and the connecting component 32 are arranged flush with each other, which facilitates the integrated molding of the connecting component 32 and the positioning body, improves the connection strength, and reduces the production cost.

[0122] In some examples, combined Fig.15 and Fig.16 As shown, the first limiting structure 23 includes a limiting body convexly arranged on the second housing 20, and the second limiting structure 33 includes a limiting groove opened on the connecting component 32. The limiting body is plugged into the limiting groove, wherein when the bottom of the limiting groove is through, it can be a through hole structure, that is, the limiting groove can also be a limiting hole. The outer convex extension direction of the limiting body is configured at a preset angle with the groove of the second set of grooves 22.

[0123] Specifically, the first limiting structure 23 is a protruding structure, that is, a limiting body, which may be cylindrically convex and extend on the second housing 20, and a boss structure 25 may be convexly provided on the second housing 20, and the limiting body may be integrally formed on the boss structure 25, and the extension axis (or central axis) of the limiting body is set at a preset angle a with the groove depth direction X of the second set of grooves 22. The second limiting structure 33 is a groove structure, that is, a limiting groove, and the groove depth direction of the limiting groove is set at a preset angle a with the central axis direction of the second pipe section 313.

[0124] For example, when the preset angle a is 0°, the extension axis (or central axis) of the limiting body is parallel to the groove depth direction X of the second group of grooves 22, and the distance between the central axis of the limiting body and the central axis of the second group of grooves 22 is equal to the distance between the central axis of the limiting groove and the central axis of the second pipe segment 313. Therefore, when the second pipe segment 313 is opposite to the second group of grooves 22, the limiting body is opposite to the limiting groove, so that the second pipe segment 313 can be inserted into the second group of grooves 22 while the limiting body can be inserted into the limiting groove. The limiting body can be integrally formed with the connecting component 32 and the tube body 31 to ensure the coaxiality of the limiting body and the tube body 31, so that the limiting body and the limiting groove can be accurately matched. The groove depth direction of the limiting groove is parallel to the central axis direction of the second pipe segment 313, and the limiting groove and the second pipe segment 313 are spaced apart in a direction perpendicular to the central axis. The limiting groove is formed on the connecting component 32 , and the limiting groove may be a through hole structure penetrating the connecting component 32 in the thickness direction.

[0125] In this example, the first limiting structure 23 adopts a limiting body, so that the second shell 20 and the limiting body can be integrally formed, which is beneficial to ensuring the accuracy of the relative position of the limiting body and the second set of grooves 22. The tube body 31 and the connecting component 32 are integrally formed, and the limiting groove is integrally formed and opened on the connecting component 32, which ensures the accuracy of the relative position of the limiting groove and the second pipe segment 313. The limiting groove and the limiting body are plugged in and matched to form a limit for the second pipe segment 313 in the second set of grooves 22, so that the position of the first pipe segment 312 is not easily deviated, thereby ensuring the assembly accuracy.

[0126] In some examples, combined Figure 17-21 As shown, the first positioning structure 24 includes a positioning body protruding from the second shell 20, and the second positioning structure 34 includes a positioning groove opened in the connecting component 32, and the positioning body is plugged into and matched with the positioning groove.

[0127] Specifically, the first positioning structure 24 is a protruding structure, that is, a positioning body, which can be cylindrical and protrudingly extended on the connecting component 32, and the extension axis (or central axis) of the positioning body is parallel to the central axis of the limiting body, and the extension axis of the positioning body is set at a preset angle a with the groove depth direction X of the second set of grooves 22. The second positioning structure 34 is a groove structure, that is, a positioning groove, and the groove depth direction of the positioning groove is parallel to the central axis direction of the limiting groove.

[0128] For example, when the preset angle a is 0°, the extension axis direction of the positioning body and the center axis direction of the limiting body are parallel to the groove depth direction X of the second set of grooves 22, the groove depth direction of the positioning groove and the groove depth direction of the limiting groove are parallel to the center axis direction of the second pipe segment 313, the positioning groove and the limiting groove are respectively arranged at intervals with the second pipe segment 313 in a direction perpendicular to the groove depth, and the center axis of the positioning groove can be arranged at intervals or in a colinear relationship with the center axis of the limiting groove. The distance between the center axis of the positioning body and the center axis of the second set of grooves 22 is equal to the distance between the center axis of the positioning groove and the center axis of the second pipe segment 313, so when the second pipe segment 313 is opposite to the second set of grooves 22, the positioning body is opposite to the positioning groove, so that the second pipe segment 313 can be inserted into the second set of grooves 22 while the positioning body can be inserted into the positioning groove. The positioning body can be integrally formed with the connecting component 32 and the tube body 31 to ensure the coaxiality of the positioning body and the tube body 31 so that the positioning body and the positioning groove can be accurately aligned.

[0129] In this example, the first positioning structure 24 adopts a positioning body, so that the second shell 20 and the positioning body can be integrally formed, which is beneficial to ensuring the relative position accuracy of the positioning body and the second group of grooves 22. The tube body 31 and the connecting component 32 are integrally formed, and the positioning groove is integrally formed and opened on the connecting component 32, which ensures the relative position accuracy of the positioning groove and the second pipe segment 313. The positioning groove and the positioning body are plugged in and matched to form a limit for the second pipe segment 313 in the second group of grooves 22, and cooperate with the plug-in cooperation of the limiting body and the limiting groove, thereby further improving the position accuracy of the first pipe segment 312. When the first shell 10 and the second shell 20 are combined, the first pipe segment 312 can be more easily and smoothly plugged into the first group of grooves 11, thereby improving the matching accuracy of the first pipe segment 312 and the first group of grooves 11, which is beneficial to improving work efficiency.

[0130] In some examples, combined Figure 19-21 As shown, the limiting body is connected to the positioning body, and the limiting body is protruded from the end of the positioning body; the limiting groove is formed at the bottom of the positioning groove.

[0131] Specifically, taking the preset angle a of 0° as an example, the positioning body is connected to the boss structure 25 of the second shell 20, and the positioning body is extended along the groove depth direction X parallel to the second set of grooves 22, and the limiting body is connected to the extended end of the positioning body. It can be seen that the limiting body protrudes outside the extended end of the positioning body; the groove depth direction of the positioning groove is parallel to the central axis direction of the second pipe section 313, the limiting groove is formed at the groove bottom of the positioning groove, and the groove depth direction of the limiting groove is parallel to the groove depth direction of the positioning groove.

[0132] When the second tube section 313 of the tube body 31 is arranged opposite to and inserted into the second set of grooves 22, the positioning body is opposite to the positioning groove, and the limiting body is arranged opposite to the limiting groove, so that when the positioning body is inserted into the positioning groove, the limiting body is correspondingly inserted into the limiting groove.

[0133] In this example, the limiting body is connected to the positioning body, and the limiting body, the positioning body and the second shell 20 can be integrally formed and prepared, so that the relative positions of the second shell 20, the positioning body and the limiting body are more precise, and the limiting body is plugged into the limiting groove to limit the deflection of the second pipe section 313 of the tube body 31 relative to the second group of grooves 22, and can reduce the influence of the gap between the second pipe section 313 and the second group of grooves 22 on the position of the tube body 31, and the positioning body is plugged into the positioning groove to limit the deflection of the second pipe section 313 of the tube body 31 relative to the second group of grooves 22, and can further reduce the influence of the matching deviation between the limiting body and the limiting groove on the positioning accuracy of the tube body 31, and the plug-in cooperation between the positioning body and the positioning groove and the plug-in cooperation between the limiting body and the limiting groove restrict each other, which can further reduce the probability of the second pipe section 313 being deflected, and improve the accuracy of the position of the first pipe section 312 of the tube body 31.

[0134] In some examples, combined Figure 19-21 As shown, the groove wall on one side of the positioning groove facing away from the second pipe section 313 is penetrated to form a groove side opening 341 , and the positioning body penetrates through the groove side opening 341 to be connected with the second housing 20 .

[0135] Specifically, the positioning body is connected to the side of the boss structure 25 of the second housing 20. For example, the boss structure 25 is a column structure, the positioning body is connected to the side of the column structure, and the central axis direction of the positioning body is parallel to the height direction of the column structure. The side of the positioning body away from the column structure can be a semicircular curved surface, and correspondingly, the groove wall of the positioning groove opposite to the groove side opening 341 is a semicircular curved surface, so that the positioning body can be matched and plugged into the positioning groove.

[0136] In this example, a through groove side opening 341 is formed on the groove wall on the side of the positioning groove facing away from the second pipe section 313, so that the positioning body can be connected to the boss structure 25 of the second shell 20 at the through position, so that the combination effect of the positioning body and the positioning groove can have the effect of key and keyway matching, thereby improving the positioning and limiting effects.

[0137] In some examples, reference Figure 4 , Figure 6 , Figure 8 , Fig.10 , Fig.12 , Fig.15 , Fig.17 and Fig.19 As shown, a top connection structure 12 is further formed on the first shell 10 , and the top connection structure 12 is connected to the tube body 31 and forms a top connection force on the tube body 31 toward the second shell 20 .

[0138] The top connection structure 12 can be integrally formed on the first shell 10, or it can be connected to the first shell 10 in a detachable manner; the top connection structure 12 can act on the first tube section 312 of the tube body 31, or it can act on the second tube section 313, so that the tube body 31 can be limited between the first shell 10 and the second shell 20.

[0139] In this example, the top connection structure 12 is used to apply an extrusion force to the tube body 31 in the direction toward the second shell 20, so that the tube body 31 can be limited along the central axis direction of the first tube segment 312 or the second tube segment 313, thereby reducing the shaking or movement of the tube body 31 between the second shell 20 and the first shell 10.

[0140] In some examples, reference Figure 4 , Figure 6 , Figure 8 , Fig.10 , Fig.12 , Fig.15 , Fig.17 and Fig.19 As shown, the top connection structure 12 is formed at the bottom of the first set of grooves 11 so that the top connection structure 12 is top-connected with the end of the first pipe section 312 .

[0141] The top connection structure 12 is formed at the bottom of the first group of grooves 11. It can be understood that the top connection structure 12 can be connected to the bottom of the first group of grooves 11 in a detachable manner, so that when the first pipe section 312 is inserted into the first group of grooves 11, the top connection structure 12 abuts against the end of the first pipe section 312; or, the top connection structure 12 is the bottom wall of the first group of grooves 11, and when the first pipe section 312 is inserted into the first group of grooves 11, the bottom wall directly abuts against the end of the first pipe section 312.

[0142] In this example, the top connection structure 12 is disposed at the bottom of the first set of grooves 11 , which is beneficial to simplifying the external structure of the first set of grooves 11 and making it more convenient to limit the first pipe section 312 .

[0143] In some examples, reference Figure 5 , Figure 7 , Fig. 9 , Fig.11 , Fig.16 , Fig.18 and Fig. 20 As shown, a plurality of oil injection holes 311 are formed on the tube wall of the tube body 31 .

[0144] Specifically, a channel is formed in the middle of the tube body 31, which is used to circulate liquids such as lubricating oil. The oil spray holes 311 are opened on the tube wall of the tube body 31. Multiple oil spray holes 311 can be spaced apart and arranged in an array on the tube wall. The directions of the injection ports of the oil spray holes 311 are all toward the accommodating space 40 and toward the position of the stator 50 in the motor assembly 100, so as to achieve the purpose of oil spray lubrication of the stator 50.

[0145] The groove wall of the second group of grooves 22 is provided with a connecting hole, and the outside of the connecting hole is connected to the oil inlet pipe 35, which can be connected to an external oil pump structure to input lubricating oil into the second group of grooves 22 and the inside of the tube body 31.

[0146] In this example, the motor assembly 100 lubricates the interior of the motor assembly 100 by spraying lubricating oil. By opening a plurality of oil spray holes 311 on the tube body 31, the lubricating oil can be dispersedly sprayed into the accommodating space 40 to achieve the purpose of lubrication, which is beneficial to improving the lubrication effect.

[0147] In some examples, reference Fig. 22As shown, the tube body 31 also includes a third tube segment 314 , which is connected between the first tube segment 312 and the second tube segment 313 , and the central axis of the third tube segment 314 is set at an angle with the central axis of the first tube segment 312 or the central axis of the second tube segment 313 .

[0148] Specifically, the first tube segment 312, the second tube segment 313 and the third tube segment 314 can be integrally formed, the third tube segment 314 can be straight, the central axis of the second tube segment 313 can form an angle of 0°-90° with the central axis of the first tube segment 312, and similarly, the central axis of the second tube segment 313 can form an angle of 0°-90° with the central axis of the third tube segment 314. When the angle is 0°, the tube body 31 is straight. In addition, the third tube segment 314 can also be curved, so that the tube body 31 as a whole is an irregular tube.

[0149] In this example, the first pipe segment 312 and the second pipe segment 313 are arranged in parallel, the third pipe segment 314 can be in a straight line or a curve shape, etc., the first pipe segment 312 and the second pipe segment 313 can be staggered and arranged in parallel in a direction perpendicular to the central axis, and the third pipe segment 314 can be connected between the first pipe segment 312 and the second pipe segment 313, thereby enabling the pairing and connection of the special-shaped pipe body 31.

[0150] In a specific embodiment, referring to Figure 10-14As shown, the motor assembly 100 includes a first housing 10, a second housing 20 and an oil pipe assembly 30; wherein the first housing 10 is formed with a first set of grooves 11; the second housing 20 is connected to the first housing 10 to form a receiving space 40, and the second housing 20 is formed with a second set of grooves 22 and a first limiting structure 23; the oil pipe assembly 30 includes a pipe body 31 and a connecting component 32, the connecting component 32 is protruding from the outer wall of the pipe body 31, and the connecting component 32 is integrally formed on the pipe body The pipe body 31 has a first pipe section 312 and a second pipe section 313 arranged parallel to the central axis. The first pipe section 312 is plugged into the first set of grooves 11, and the second pipe section 313 is plugged into the second set of grooves 22. A second limiting structure 33 is formed on the connecting member 32. The first limiting structure 23 is plugged into the second limiting structure 33. The plugging direction of the first limiting structure 23 relative to the second limiting structure 33 is parallel to the plugging direction of the second pipe section 313 relative to the second set of grooves 22. direction; a first positioning structure 24 is also formed on the second shell 20, and a second positioning structure 34 is also formed on the connecting part 32. The first positioning structure 24 and the second positioning structure 34 are plugged together, and the plugging direction of the first positioning structure 24 relative to the second positioning structure 34 is parallel to the plugging direction of the first limiting structure 23 relative to the second limiting structure 33; the first limiting structure 23 includes a limiting groove provided in the second shell 20, and the second limiting structure 33 includes a limiting body protruding from the connecting part 32, and the limiting body is plugged together with the limiting groove; the first positioning structure 24 includes a positioning groove provided in the second shell 20, and the second positioning structure 34 includes a positioning body protruding from the connecting part 32, and the positioning body is plugged together with the positioning groove; the limiting body is connected to the positioning body, and the limiting body is protruding from the end of the positioning body, and the limiting groove is formed at the bottom of the positioning groove; the groove wall on one side of the positioning groove facing the second group of grooves 22 is through-configured to form a side notch 241, and the positioning body passes through the side notch 241.

[0151] In some examples, an example of a power device is disclosed, the power device including the motor assembly 100 in any of the above examples.

[0152] The power device in this example includes, but is not limited to: a battery vehicle, an electric vehicle 1000, a ship, a spacecraft, an electric toy, etc., and the motor assembly 100 described in any of the above examples can be separately installed in the power device.

[0153] The example of the power device in the present application is based on the example of the motor assembly 100 described above. The example of the power device includes all the technical effects of the example of the motor assembly 100 described above, which will not be repeated here.

[0154] The above are only preferred embodiments of the present application, and only specifically describe the technical principles of the present application. These descriptions are only for explaining the principles of the present application and cannot be interpreted as limiting the scope of protection of the present application in any way. Based on the explanation here, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application, and other specific implementation methods of the present application that can be associated with the technicians in this field without creative work, should be included in the scope of protection of the present application.

Claims

1. A motor assembly, characterized in that: include: A first housing is formed with a first set of pairs of grooves; A second shell is connected to the first shell to form a receiving space, and the second shell is formed with a second set of grooves and a first limiting structure; The oil pipe assembly includes a pipe body and a connecting component, wherein the connecting component is protruding from the outer wall of the pipe body and is integrally formed on the pipe body. The pipe body has a first pipe section and a second pipe section that are arranged parallel to the central axis. The first pipe section is plugged into the first set of grooves, and the second pipe section is plugged into the second set of grooves. A second limiting structure is formed on the connecting component, and the first limiting structure is plugged into and matched with the second limiting structure.

2. The motor assembly according to claim 1, characterized in that The plugging direction of the first limiting structure relative to the second limiting structure is parallel to the plugging direction of the second pipe section relative to the second set of grooves.

3. The motor assembly according to claim 1 or 2, characterized in that: A first positioning structure is also formed on the second shell, and a second positioning structure is also formed on the connecting component. The first positioning structure is plugged into the second positioning structure; the plugging direction of the first positioning structure relative to the second positioning structure is parallel to the plugging direction of the first limiting structure relative to the second limiting structure.

4. The motor assembly according to claim 3, characterized in that The first limiting structure includes a limiting groove formed in the second shell, and the second limiting structure includes a limiting body protruding from the connecting component, and the limiting body is plug-fitted into the limiting groove.

5. The motor assembly according to claim 4, characterized in that The first positioning structure includes a positioning groove formed in the second shell, and the second positioning structure includes a positioning body protruding from the connecting component, and the positioning body is plug-fitted into the positioning groove.

6. The motor assembly according to claim 5, characterized in that The limiting body is connected to the positioning body, and the limiting body is protruding from the end of the positioning body; the limiting groove is formed at the groove bottom of the positioning groove.

7. The motor assembly according to claim 5, characterized in that A groove wall on one side of the positioning groove facing the second group of grooves is penetrated to form a side groove opening, and the positioning body penetrates the side groove opening.

8. The motor assembly according to claim 3, characterized in that The first limiting structure includes a limiting body protruding from the second shell, and the second limiting structure includes a limiting groove opened on the connecting component, and the limiting body is plugged into and matched with the limiting groove.

9. The motor assembly according to claim 8, characterized in that The first positioning structure includes a positioning body protruding from the second shell, and the second positioning structure includes a positioning groove opened on the connecting component, and the positioning body is plugged into and matched with the positioning groove.

10. The motor assembly according to claim 9, characterized in that The limiting body is connected to the positioning body, and the limiting body is protruding from the end of the positioning body; the limiting groove is formed at the groove bottom of the positioning groove.

11. The motor assembly according to claim 10, characterized in that A groove wall on one side of the positioning groove facing away from the second pipe section is penetrated to form a side notch, and the positioning body penetrates the side notch.

12. The motor assembly according to claim 1 or 2, characterized in that: A top connection structure is also formed on the first shell, and the top connection structure is connected to the tube body and forms a top connection force on the tube body toward the second shell.

13. The motor assembly according to claim 12, wherein: The top connection structure is arranged at the bottom of the first group of grooves, so that the top connection structure is top-connected with the end of the first pipe section.

14. The motor assembly according to claim 1 or 2, characterized in that: A plurality of oil injection holes are formed on the tube wall of the tube body.

15. The motor assembly according to claim 1 or 2, characterized in that: The tube body further includes a third tube segment, which is connected between the first tube segment and the second tube segment, and a central axis of the third tube segment is arranged at an angle to a central axis of the first tube segment or a central axis of the second tube segment.

16. A power device, characterized in that: Comprising a motor assembly as described in any one of claims 1-15.

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