Motor, electric drive apparatus, electric drive system, and electrically powered device

Abstract

The present application provides a motor (11), an electric drive apparatus (10), an electric drive system (100), and an electrically powered device. The motor (11) comprises a first housing (111), a stator (112), and a rotor (113); the first housing (111) comprises a housing main body (1111) and a partition (1112); the partition (1112) is arranged in the housing main body (1111) so as to partition the interior of the housing main body (1111) into a first accommodating space (1113) and a second accommodating space (1114); the stator (112) is accommodated in the first accommodating space (1113); the stator (112) is connected to the partition (1112); and the rotor (113) is accommodated in the second accommodating space (1114).

Description

Motors, electric drives, electric drive systems and electric equipment

[0001] Cross-references

[0002] This application refers to Chinese patent application No. 202310761187.6 filed on June 26, 2023, entitled “Motor, Electric Drive Device, Electric Drive System and Electric Equipment”, which is incorporated into this application in its entirety by reference. Technical Field

[0003] The present application relates to the field of electric drive technology, and in particular to a motor, an electric drive device, an electric drive system and an electric device. Background Art

[0004] A motor is a power device used to convert electrical energy into mechanical energy. It typically consists of a stator and a rotor, separated by a separator. However, during operation, the separator can easily deform toward the rotor, causing interference between the rotor and the separator, which is detrimental to motor performance.

[0005] Summary of the Invention

[0006] The purpose of the embodiments of the present application is to provide a motor, an electric drive device, an electric drive system and an electric device to solve the technical problem in the related art that the separator of the motor is easily deformed toward the direction of the rotor, resulting in interference between the rotor and the separator.

[0007] To achieve the above-mentioned purpose, the technical solution adopted in the embodiment of the present application is to provide a motor, comprising:

[0008] The first housing includes a housing body and a partition, wherein the partition is disposed in the housing body to separate the interior of the housing body into a first accommodation space and a second accommodation space;

[0009] A stator is accommodated in the first accommodation space, and the stator is connected to the separator;

[0010] The rotor is accommodated in the second accommodation space.

[0011] The motor provided by the embodiment of the present application has at least the following beneficial effects: the motor provided by the embodiment of the present application is connected to the separator through the stator, so that the position of the part where the separator is connected to the stator is relatively fixed with the position of the rotor. In this way, the deformation of the separator toward the rotor is effectively improved, thereby effectively reducing the risk of interference between the separator and the rotor, which is beneficial to improving the performance of the motor.

[0012] In some embodiments of the present application, the stator includes a plurality of cores and a plurality of slot wedges, a winding slot is formed between two adjacent cores, and the slot wedges are inserted into the winding slot and connected to the separator.

[0013] By adopting the above technical solution, a slot wedge of corresponding material can be selected according to the material of the separator, so that the material of the slot wedge is the same as that of the separator, or the material type of the slot wedge is the same as that of the separator, thereby effectively improving the connection strength between the slot wedge and the separator.

[0014] In some embodiments of the present application, the slot wedge includes an inserting portion and a first connecting portion, the inserting portion is inserted into the winding slot, the first connecting portion is arranged on the side of the inserting portion facing the partition, and the first connecting portion extends out of the winding slot and is connected to the partition.

[0015] By adopting the above technical solution, the connection stress between the slot wedge and the separator is effectively reduced, thereby effectively improving the connection stability between the slot wedge and the separator.

[0016] In some embodiments of the present application, the partition includes a partition portion, which is used to separate the interior of the shell body into a first accommodating space and a second accommodating space; the partition portion is provided with a first connecting hole, and the first connecting portion is connected to the first connecting hole; or, the partition portion is provided with a first connecting groove, and the first connecting portion is connected to the first connecting groove.

[0017] By adopting the above technical solution, the connection area between the slot wedge and the separator is effectively increased, thereby further improving the connection strength between the slot wedge and the separator.

[0018] In some embodiments of the present application, the first connecting portion is provided with a first connecting surface, the partition includes a partition portion, the partition portion is used to separate the interior of the shell body into a first accommodating space and a second accommodating space, the partition portion is provided with a second connecting surface, and the first connecting surface is connected to the second connecting surface.

[0019] By adopting the above technical solution, the connection area between the slot wedge and the separator is effectively increased, thereby further improving the connection strength between the slot wedge and the separator.

[0020] In some embodiments of the present application, the partition includes a partition portion and a second connecting portion, the partition portion is used to divide the interior of the shell body into a first accommodating space and a second accommodating space, the second connecting portion is arranged on the side of the partition portion facing the stator, and the second connecting portion extends into the winding slot and is connected to the slot wedge.

[0021] By adopting the above technical solution, the connection stress between the slot wedge and the separator is effectively reduced, thereby effectively improving the connection stability between the slot wedge and the separator.

[0022] In some embodiments of the present application, the slot wedge includes an inserting portion, which is inserted into the winding slot. The inserting portion is provided with a third connecting surface, the second connecting portion is provided with a fourth connecting surface, and the third connecting surface is connected to the fourth connecting surface.

[0023] By adopting the above technical solution, the connection area between the slot wedge and the separator is effectively increased, thereby further improving the connection strength between the slot wedge and the separator.

[0024] In some embodiments of the present application, the slot wedge includes an inserting portion, which is inserted into the winding slot; the inserting portion is provided with a second connecting hole, and the second connecting portion is connected to the second connecting hole; or, the inserting portion is provided with a second connecting groove, and the second connecting portion is connected to the second connecting groove.

[0025] By adopting the above technical solution, the connection area between the slot wedge and the separator is effectively increased, thereby further improving the connection strength between the slot wedge and the separator.

[0026] In some embodiments of the present application, the slot wedge includes an inserting portion and a limiting portion, the inserting portion is inserted into the winding slot, and the limiting portion is connected to one end of the inserting portion and abuts against two adjacent iron cores.

[0027] By adopting the above technical solution, the position of the slot wedge in the winding slot is effectively limited, thereby effectively reducing the risk of the slot wedge escaping from the winding slot.

[0028] In some embodiments of the present application, a relief opening is provided at the connection between the plug-in portion and the limiting portion.

[0029] By adopting the above technical solution, the iron core is effectively avoided, thereby effectively improving the mutual interference between the slot wedge and the iron core.

[0030] In some embodiments of the present application, the slot wedge includes an inserting portion, which is inserted into the winding slot, and the inserting end of the inserting portion is provided with a chamfered structure.

[0031] By adopting the above technical solution, it is easy to insert the slot wedge into the winding slot, thereby effectively improving the assembly efficiency of the stator.

[0032] In some embodiments of the present application, the winding groove has a first groove wall and a second groove wall arranged opposite to each other, the first groove wall has a first card slot, the second groove wall has a second card slot opposite to the first card slot, one side of the groove wedge is inserted into the first card slot, and the other side of the groove wedge is inserted into the second card slot.

[0033] By adopting the above technical solution, the position of the slot wedge in the winding slot is effectively limited, thereby effectively reducing the risk of the slot wedge escaping from the winding slot.

[0034] In some embodiments of the present application, the slot wedge is riveted, welded, or bonded to the separator.

[0035] By adopting the above technical solution, the connection between the slot wedge and the separator is effectively achieved.

[0036] In some embodiments of the present application, the stator includes an iron core connected to the separator.

[0037] By adopting the above technical solution, it is easy to connect the stator and the separator.

[0038] In some embodiments of the present application, the core is bonded to the separator.

[0039] By adopting the above technical solution, it is easier to connect the stator and the separator.

[0040] In some embodiments of the present application, there are two stators and two separators, the rotor is disposed between the two stators, one separator is disposed between the rotor and one stator, and the other separator is disposed between the rotor and the other stator.

[0041] By adopting the above technical solution, the deformation of the separator toward the rotor is effectively improved, thereby effectively reducing the risk of interference between the separator and the rotor, which is beneficial to improving the performance of the dual-stator motor.

[0042] In some embodiments of the present application, there are two rotors, there are two partitions, the stator is arranged between the two rotors, one partition is arranged between the stator and one rotor, and the other partition is arranged between the stator and the other rotor.

[0043] By adopting the above technical solution, the deformation of the separator toward the rotor is effectively improved, thereby effectively reducing the risk of interference between the separator and the rotor, which is beneficial to improving the performance of the dual-rotor motor.

[0044] In some embodiments of the present application, the first accommodation space is used to accommodate a cooling medium.

[0045] By adopting the above-mentioned technical solution, the pressure exerted by the cooling medium on the separator can be effectively overcome, thereby effectively improving the deformation of the separator toward the rotor, thereby effectively reducing the risk of interference between the separator and the rotor, which is beneficial to improving the performance of the motor. At the same time, the stator can be in direct contact with the cooling medium, so that the cooling medium can effectively absorb the heat generated by the stator, thereby effectively improving the cooling efficiency of the motor.

[0046] In some embodiments of the present application, the motor further includes a second housing, and the first housing is disposed within the second housing.

[0047] By adopting the above technical solution, the protection performance of the motor is effectively improved.

[0048] In some embodiments of the present application, the motor is an axial flux motor.

[0049] By adopting the above technical solution, the axial size of the motor is effectively reduced.

[0050] An embodiment of the present application further provides an electric drive device, comprising the motor described in any one of the above embodiments.

[0051] The electric drive device provided in the embodiment of the present application has at least the following beneficial effects: the electric drive device provided in the embodiment of the present application adopts the above-mentioned motor, thereby effectively improving the performance of the electric drive device.

[0052] An embodiment of the present application further provides an electric drive system, comprising a battery and the above-mentioned electric drive device, wherein the battery is electrically connected to the electric drive device.

[0053] The electric drive system provided by the embodiment of the present application has at least the following beneficial effects: the electric drive system provided by the embodiment of the present application adopts the above-mentioned electric drive device, thereby effectively improving the performance of the electric drive system.

[0054] An embodiment of the present application also provides an electric device, including the above-mentioned electric drive system.

[0055] The electric device provided by the embodiment of the present application has at least the following beneficial effects: the electric device provided by the embodiment of the present application adopts the above-mentioned electric drive system, thereby effectively improving the performance of the electric device. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. 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 any creative work.

[0057] FIG1 is a schematic structural diagram of a vehicle provided in an embodiment of the present application;

[0058] FIG2 is a schematic diagram of an exploded structure of a battery provided in an embodiment of the present application;

[0059] FIG3 is a schematic structural diagram of an electric drive device provided in an embodiment of the present application;

[0060] FIG4 is a schematic diagram of the front structure of the electric drive device shown in FIG3 ;

[0061] FIG5 is a first schematic cross-sectional view of the motor in the electric drive device shown in FIG4 along line AA;

[0062] FIG6 is a second schematic cross-sectional view of the motor in the electric drive device shown in FIG4 along line AA;

[0063] FIG7 is a schematic structural diagram of a stator provided in an embodiment of the present application;

[0064] FIG8 is a schematic structural diagram of the slot wedge in the stator shown in FIG7 ;

[0065] FIG9 is a schematic diagram of a connection structure between a stator and a separator provided in an embodiment of the present application;

[0066] FIG10 is a second schematic diagram of the connection structure between the stator and the separator provided in an embodiment of the present application;

[0067] FIG11 is a third schematic diagram of the connection structure between the stator and the separator provided in an embodiment of the present application;

[0068] FIG12 is a fourth schematic diagram of the connection structure between the stator and the separator provided in an embodiment of the present application;

[0069] FIG13 is a fifth schematic diagram of the connection structure between the stator and the separator provided in an embodiment of the present application;

[0070] FIG14 is a sixth schematic diagram of the connection structure between the stator and the separator provided in an embodiment of the present application.

[0071] 10. The following figures indicate the following: 1000, vehicle; 100, electric drive system; 10, electric drive device; 11, motor; 111, first housing; 1111, housing body; 1112, partition; 11121, partition; 11122, first connecting hole; 11123, first connecting groove; 11124, second connecting surface; 11125, second connecting portion; 11126, fourth connecting surface; 1113, first accommodating space; 1114, second accommodating space; 112, stator; 1121, core; 1122, slot wedge; 11221, plug-in portion; 11222, first connecting portion; 11223, first connecting surface; 11224, third connecting portion Joint; 11225, second connecting hole; 11226, second connecting groove; 11227, limiting portion; 11228, avoidance opening; 11229, chamfered structure; 1123, winding groove; 11231, first groove wall; 11232, second groove wall; 11233, first clamping groove; 11234, second clamping groove; 11235, notch; 1124, base; 113, rotor; 114, second housing; 12, speed change mechanism; 13, controller; 20, battery; 21, battery box; 211, first box body; 212, second box body; 22, battery cell; 200, vehicle body. DETAILED DESCRIPTION

[0072] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0073] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0074] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0075] In addition, the terms "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, a feature defined as "first," "second," "third," "fourth," "fifth," and "sixth" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise explicitly and specifically defined.

[0076] A motor is the power unit of an electric device, converting electrical energy into mechanical energy to drive it. A motor typically consists of a rotor and a stator. During operation, the rotor rotates while the stator remains stationary. To reduce the risk of interference between the rotor and stator, a separator is often installed to separate the two.

[0077] In related technologies, separators are usually made of insulating materials, for example, separators are made of plastic. Therefore, the structural strength of the separators is poor. During the operation of the motor, the separators are easily deformed toward the rotor under the action of other external forces. When the deformation amplitude of the separators is too large, the separators will contact the rotor, resulting in interference between the separators and the rotor. Especially when the rotor rotates at high speed, it is easy to cause damage to the inside of the motor, which is not conducive to improving the performance of the motor.

[0078] In order to reduce the risk of interference between the separator and the rotor, the stator of the motor provided in the embodiment of the present application is connected to the separator. Since the stator is fixed, the part where the separator is connected to the stator is also fixed, so that the position of the part where the separator is connected to the stator is relatively fixed with the position of the rotor. In this way, the deformation of the separator toward the rotor is effectively improved, thereby effectively reducing the risk of interference between the separator and the rotor, which is beneficial to improving the performance of the motor.

[0079] The motor provided in the embodiments of the present application can be applied to electric equipment, which may be, but is not limited to, vehicles, ships, airplanes, spacecraft, excavators, cranes, lifts, elevators, etc., and is not specifically limited here.

[0080] For the convenience of description, the following embodiments are described by taking the electric device of one embodiment of the present application as a vehicle as an example.

[0081] Please refer to Figure 1, which is a schematic diagram of the structure of a vehicle 1000 provided in an embodiment of the present application. Based on the power source, vehicle 1000 can be a pure electric vehicle, a hybrid electric vehicle, or an extended-range electric vehicle. Based on the drive mode, vehicle 1000 can be a front-wheel drive vehicle, a rear-wheel drive vehicle, or a four-wheel drive vehicle. Vehicle 1000 includes a vehicle body 200 and an electric drive system 100.

[0082] The vehicle body 200 is the primary supporting component of the vehicle 1000. It comprises an engine compartment and a passenger compartment. The engine compartment houses the vehicle 1000's powertrain, electronic control system, transmission mechanism, and other components, while the passenger compartment provides operating and seating space for the driver and passengers. When the vehicle 1000 is a front-wheel drive vehicle, the engine compartment is located at the front of the vehicle body 200, forming the front engine compartment. When the vehicle 1000 is a rear-wheel drive vehicle, the engine compartment is located at the rear of the vehicle body 200, forming the rear engine compartment. When the vehicle 1000 is a four-wheel drive vehicle, the engine compartment is divided into a front engine compartment and a rear engine compartment, with the front engine compartment located at the front of the vehicle body 200 and the rear engine compartment located at the rear. The passenger compartment is located between the front and rear sections of the vehicle body 200.

[0083] The electric drive system 100 is the power system of the vehicle 1000. The electric drive system 100 is used to convert electrical energy into mechanical energy and output this mechanical energy to the wheels of the vehicle 1000 to drive the vehicle 1000. The electric drive system 100 is installed on the vehicle body 200. Specifically, a portion of the electric drive system 100 can be installed in the engine compartment, and another portion of the electric drive system 100 can be installed on the bottom of the vehicle body 200.

[0084] Referring to FIG. 1 , an electric drive system 100 provided in an embodiment of the present application includes a battery 20 and an electric drive device 10 .

[0085] The battery 20 is used to provide electrical energy to the electric drive device 10, and the battery 20 can be set at the bottom, head or tail of the vehicle 1000. Please refer to Figure 2, which is an exploded schematic diagram of the battery 20 provided in an embodiment of the present application. The battery 20 includes a battery box 21 and a battery cell 22, and the battery cell 22 is accommodated in the battery box 21. Among them, the battery box 21 is used to provide a storage space for the battery cell 22, and the battery box 21 can adopt a variety of structures. In some embodiments, the battery box 21 may include a first box body 211 and a second box body 212, and the first box body 211 and the second box body 212 cover each other, and the first box body 211 and the second box body 212 jointly define a storage space for accommodating the battery cell 22. The second box body 212 can be a hollow structure with one end open, and the first box body 211 can be a plate-like structure. The first box body 211 is covered on the open side of the second box body 212, so that the first box body 211 and the second box body 212 jointly define a storage space. The first box body 211 and the second box body 212 can also be hollow structures with one end open, and the open side cover of the first box body 211 is covered on the open side of the second box body 212. Of course, the battery box 21 formed by the first box body 211 and the second box body 212 can have various shapes, such as a cylinder, a rectangular parallelepiped, etc.

[0086] In some embodiments, the battery box 21 may serve as part of the chassis structure of the vehicle 1000. For example, a portion of the battery box 21 may form at least a portion of the floor of the vehicle 1000, or a portion of the battery box 21 may form at least a portion of the cross member and longitudinal member of the vehicle 1000.

[0087] Of course, in some embodiments, the battery 20 may not include a battery box 21 , but rather a plurality of battery cells 22 may be electrically connected and formed into a whole through necessary fixing structures before being assembled into the vehicle 1000 .

[0088] In the battery 20, there may be multiple battery cells 22, and the multiple battery cells 22 may be connected in series, in parallel, or in a hybrid connection. A hybrid connection refers to a combination of series and parallel connections among the multiple battery cells 22. The multiple battery cells 22 may be directly connected in series, in parallel, or in a hybrid connection, and then the entire battery 22 may be housed within the battery case 21. Of course, the battery 20 may also comprise a battery module composed of multiple battery cells 22 connected in series, in parallel, or in a hybrid connection, and then the multiple battery modules may be further connected in series, in parallel, or in a hybrid connection to form an entire battery 22, which is then housed within the battery case 21. The battery 20 may also include other functional components, such as a busbar for electrically connecting the multiple battery cells 22.

[0089] Each battery cell 22 may be a secondary battery or a primary battery. A secondary battery refers to a battery cell 22 that can be recharged to activate the active material after the battery cell 22 is discharged and can continue to be used. A primary battery refers to a battery cell 22 that cannot be recharged to activate the active material after the battery cell 22's power is exhausted and can continue to be used. The battery cell 22 may also be a lithium-ion battery, a sodium-ion battery, a sodium-lithium-ion battery, a lithium metal battery, a sodium metal battery, a lithium-sulfur battery, a magnesium-ion battery, a nickel-hydrogen battery, a nickel-cadmium battery, a lead-acid battery, etc., but is not limited thereto. The battery cell 22 may be a cylindrical battery cell, a prismatic battery cell, a soft-pack battery cell, or a battery cell 22 of another shape. Prismatic battery cells include square-shell battery cells, blade-shaped battery cells, and polygonal prismatic batteries. Polygonal prismatic batteries, for example, hexagonal prismatic batteries, are not particularly limited in this application.

[0090] The electric drive device 10 is used to convert the electrical energy provided by the battery 20 into mechanical energy and output the mechanical energy to the wheels of the vehicle 1000 to drive the vehicle 1000. The electric drive device 10 is installed in the engine compartment. Specifically, when the vehicle 1000 is a front-wheel drive vehicle, the electric drive device 10 is installed in the front engine compartment and is used to output the mechanical energy to the front wheels of the vehicle 1000 to drive the vehicle 1000. When the vehicle 1000 is a rear-wheel drive vehicle, the electric drive device 10 is installed in the rear engine compartment and is used to output the mechanical energy to the rear wheels of the vehicle 1000 to drive the vehicle 1000. When the vehicle 1000 is a four-wheel drive vehicle, there are two electric drive devices 10: one electric drive device 10 is installed in the front engine compartment and is used to output the mechanical energy to the front wheels of the vehicle 1000, and the other electric drive device 10 is installed in the rear engine compartment and is used to output the mechanical energy to the rear wheels of the vehicle 1000 to drive the vehicle 1000.

[0091] The electric drive device 10 includes a motor 11, which is the primary power output component of the electric drive device 10 and is used to convert electrical energy provided by the battery 20 into mechanical energy. The electric drive device 10 may also include a transmission mechanism 12, which is the power transmission mechanism of the electric drive device 10. The transmission mechanism 12 has a power input and a power output. The power input of the transmission mechanism 12 is connected to the rotating shaft of the motor 11, and the power output of the transmission mechanism 12 is connected to the wheels of the vehicle 1000. This mechanical energy is transmitted to the wheels of the vehicle 1000 by changing the speed and torque of the motor 11. The electric drive device 10 may also include a controller 13, which is used to convert the direct current output of the battery 20 into alternating current (AC) and transmit the AC power to the motor 11. The controller 13 is also used to control the operation of the motor 11, for example, controlling the start and stop, speed, and torque of the motor 11.

[0092] The motor 11 provided in the embodiment of the present application is described below with reference to the accompanying drawings.

[0093] First, referring to Figures 5 and 6 , an embodiment of the present application provides a motor 11 comprising a first housing 111, a stator 112, and a rotor 113. The first housing 111 comprises a housing body 1111 and a partition 1112. The partition 1112 is disposed within the housing body 1111 to separate the interior of the housing body 1111 into a first accommodating space 1113 and a second accommodating space 1114. The stator 112 is accommodated within the first accommodating space 1113 and is connected to the partition 1112. The rotor 113 is accommodated within the second accommodating space 1114.

[0094] The first housing 111 is a component that provides an installation environment for the stator 112 and the rotor 113. In some embodiments, the first housing 111 can be an integrally molded component, for example, the housing body 1111 and the separator 1112 are integrally molded using an injection molding process. In other embodiments, the first housing 111 can be an assembled component composed of multiple parts, for example, the housing body 1111 and the separator 1112 are independently molded and then connected together. To ensure the insulation performance of the motor 11, the first housing 111 can be made entirely of an insulating material. The first housing 111 can also be made of a composite of insulating and metal materials, for example, the inner layer structure of the housing body 1111 of the first housing 111 is made of a metal material, and the outer layer structure of the housing body 1111 is made of an insulating material. In other words, the insulating material covers the metal material. To reduce the magnetic resistance between the stator 112 and the rotor 113, the separator 1112 of the first housing 111 is made of an insulating material. The insulating material may be, but is not limited to, plastic, rubber, insulating fiber, etc., and the metal material may be, but is not limited to, copper, iron, aluminum, stainless steel, aluminum alloy, etc.

[0095] The housing body 1111 is the main portion of the first housing 111 and is used to define the aforementioned installation environment. The first accommodating space 1113 and the second accommodating space 1114 are two parts of the installation environment provided by the housing body 1111. The first accommodating space 1113 is used to accommodate the stator 112, and the second accommodating space 1114 is used to accommodate the rotor 113.

[0096] The partition 1112 is a component used to separate the above-mentioned installation environment into a first accommodating space 1113 and a second accommodating space 1114. In other words, the partition 1112 is disposed between the stator 112 and the rotor 113. It is understood that the first accommodating space 1113 and the second accommodating space 1114 are separated from each other, meaning that components disposed in the first accommodating space 1113 cannot directly enter the second accommodating space 1114. For example, if a cooling medium is contained in the first accommodating space 1113, the cooling medium cannot directly enter the second accommodating space 1114. Similarly, components disposed in the second accommodating space 1114 cannot directly enter the first accommodating space 1113.

[0097] The rotor 113 is the rotating part of the motor 11. The stator 112 is the fixed part of the motor 11, which is used to drive the rotor 113 to rotate. It can be understood that the stator 112 and the rotor 113 are separated to form an air gap, and the separator 1112 is arranged in the air gap.

[0098] In some embodiments, the motor 11 is an axial flux motor 11, and the cross-section of the shell body 1111 along the direction perpendicular to the central axis of the motor 11 is roughly annular. The inner ring space of the shell body 1111 constitutes the above-mentioned installation environment. The partition 1112 is roughly plate-shaped and intersects with the central axis of the motor 11. For example, the partition 1112 is perpendicular to the central axis of the motor 11. The partition 1112 separates the above-mentioned installation environment to form a first accommodating space 1113 and a second accommodating space 1114. The first accommodating space 1113 and the second accommodating space 1114 are arranged along the axial direction of the motor 11. The stator 112 is arranged in the first accommodating space 1113, and the rotor 113 is arranged in the second accommodating space 1114.

[0099] In other embodiments, the motor 11 is a radial flux motor 11, the cross-section of the shell body 1111 along the direction perpendicular to the central axis of the motor 11 is roughly annular, the inner ring space of the shell body 1111 constitutes the above-mentioned installation environment, the partition 1112 along the direction perpendicular to the central axis of the motor 11 is roughly annular, the shell body 1111 is sleeved on the partition 1112, and the partition 1112 separates the above-mentioned installation environment into a first accommodating space 1113 and a second accommodating space 1114. For example, the outer peripheral space of the partition 1112 constitutes the first accommodating space 1113, and the inner ring space of the partition 1112 constitutes the second accommodating space 1114. For another example, the outer peripheral space of the partition 1112 constitutes the second accommodating space 1114, and the inner ring space of the partition 1112 constitutes the first accommodating space 1113. The stator 112 is arranged in the first accommodating space 1113, and the rotor 113 is arranged in the second accommodating space 1114.

[0100] The motor 11 provided in the embodiment of the present application is connected to the separator 1112 through the stator 112, so that the position of the part where the separator 1112 is connected to the stator 112 is relatively fixed with the position of the rotor 113. In this way, the deformation of the separator 1112 toward the rotor 113 is effectively improved, thereby effectively reducing the risk of interference between the separator 1112 and the rotor 113, which is beneficial to improving the performance of the motor 11.

[0101] In some embodiments of the present application, please refer to Figures 7 to 11. The stator 112 includes multiple iron cores 1121 and multiple slot wedges 1122. Winding slots 1123 are formed between two adjacent iron cores 1121. The slot wedges 1122 are inserted into the winding slots 1123 and connected to the separator 1112.

[0102] The iron core 1121 is the main component of the stator 112. The stator 112 may also include a winding, and the iron core 1121 is used to provide a space for the winding. The iron core 1121 and the winding together constitute the magnetic circuit of the motor 11. In some embodiments, the stator 112 also includes a base 1124, and multiple iron cores 1121 are provided on the base 1124 and arranged around the central axis of the motor 11. Two adjacent iron cores 1121 are spaced apart to form a winding groove 1123, and the winding groove 1123 has a notch 11235. The winding is placed in the winding groove 1123 through the notch 11235, and the notch 11235 is arranged opposite to the partition 1112. In some embodiments, the iron core 1121 can be an assembled component assembled from multiple parts. For example, the iron core 1121 is formed by stacking multiple punching sheets in sequence. In other embodiments, the iron core 1121 can also be an integrally formed component. For example, the iron core 1121 is integrally formed by a casting process.

[0103] The slot wedge 1122 is a component used to secure the winding. When the winding operation is complete, the slot wedge 1122 is inserted into the winding slot 1123 to seal the notch 11235 of the winding slot 1123, thereby securing the winding within the winding slot 1123. The slot wedge 1122 can be a one-piece component, or it can be an assembled component composed of multiple parts, which is not specifically limited here. In this embodiment, the slot wedge 1122 also serves to insulate the core 1121 from the winding. That is, the slot wedge 1122 is made of an insulating material. To improve the connection strength between the slot wedge 1122 and the separator 1112, the material of the slot wedge 1122 is the same as that of the separator 1112. For example, if the separator 1112 is made of plastic, the slot wedge 1122 is also made of plastic.

[0104] By adopting the above technical solution, a slot wedge 1122 of corresponding material can be selected according to the material of the partition 1112, so that the material of the slot wedge 1122 is the same as that of the partition 1112, or the material type of the slot wedge 1122 is the same as that of the partition 1112, thereby effectively improving the connection strength between the slot wedge 1122 and the partition 1112.

[0105] In some embodiments of the present application, please refer to Figures 9 to 11 together. The slot wedge 1122 includes a plug-in portion 11221 and a first connecting portion 11222. The plug-in portion 11221 is plugged into the winding groove 1123. The first connecting portion 11222 is arranged on the side of the plug-in portion 11221 facing the partition 1112. The first connecting portion 11222 extends out of the winding groove 1123 and is connected to the partition 1112.

[0106] The plug-in portion 11221 is the main portion of the slot wedge 1122. The plug-in portion 11221 is inserted into the winding slot 1123 to seal the notch 11235 of the winding slot 1123, thereby securing the winding within the winding slot 1123. At least a portion of the plug-in portion 11221 is disposed opposite the separator 1112 via the notch 11235 of the winding slot 1123. The first connecting portion 11222 is disposed at a location opposite the plug-in portion 11221 and located on the side of the plug-in portion 11221 facing the separator 1112.

[0107] The first connecting portion 11222 is used to connect to the separator 1112. One end of the first connecting portion 11222 is connected to the plug-in portion 11221, and the other end of the first connecting portion 11222 extends through the notch 11235 of the winding groove 1123 and connects to the separator 1112. The number of first connecting portions 11222 can be one or more. In this embodiment, to further enhance the connection strength between the slot wedge 1122 and the separator 1112, multiple first connecting portions 11222 are provided, distributed along the length of the plug-in portion 11221.

[0108] By adopting the above technical solution, since the first connecting part 11222 extends out of the winding groove 1123 and is connected to the separator 1112, the interference between the separator 1112 and the two adjacent iron cores 1121 can be reduced, thereby effectively reducing the connection stress between the slot wedge 1122 and the separator 1112, and effectively improving the connection stability between the slot wedge 1122 and the separator 1112.

[0109] In some embodiments of the present application, please refer to Figure 9, the partition 1112 includes a partition part 11121, the partition part 11121 is used to separate the interior of the shell body 1111 into a first accommodating space 1113 and a second accommodating space 1114, and the partition part 11121 is provided with a first connecting hole 11122, and the first connecting part 11222 is connected to the first connecting hole 11122.

[0110] The partition portion 11121 is the main portion of the partition member 1112 and is used to separate the interior of the shell body 1111 into a first accommodating space 1113 and a second accommodating space 1114 .

[0111] First connection hole 11122 is a structure that passes through partition 11121. First connection portion 11222 is connected to first connection hole 11122, that is, at least a portion of first connection portion 11222 is disposed within first connection hole 11122. First connection portion 11222 may or may not pass through first connection hole 11122, and this is not specifically limited herein. The shape of first connection portion 11222 matches the shape of first connection hole 11122. For example, if first connection portion 11222 is cylindrical, first connection hole 11122 is also cylindrical. For another example, if first connection portion 11222 is prismatic, first connection hole 11122 is also prismatic.

[0112] In other embodiments of the present application, please refer to Figure 10, the partition 1112 includes a partition portion 11121, the partition portion 11121 is used to separate the interior of the shell body 1111 into a first accommodating space 1113 and a second accommodating space 1114, the partition portion 11121 is provided with a first connecting groove 11123, and the first connecting portion 11222 is connected to the first connecting groove 11123.

[0113] The first connecting groove 11123 is recessed on the side of the partition 11121 facing the slot wedge 1122. The first connecting portion 11222 is connected to the first connecting groove 11123, that is, at least a portion of the first connecting portion 11222 is disposed within the first connecting groove 11123. The shape of the first connecting portion 11222 matches the shape of the first connecting groove 11123. For example, if the first connecting portion 11222 is cylindrical, the first connecting groove 11123 is also cylindrical. For another example, if the first connecting portion 11222 is prismatic, the first connecting groove 11123 is also prismatic.

[0114] By adopting the above technical solution, the connection area between the slot wedge 1122 and the separator 1112 is effectively increased, thereby further improving the connection strength between the slot wedge 1122 and the separator 1112.

[0115] In some other embodiments of the present application, please refer to Figure 11, the first connecting portion 11222 is provided with a first connecting surface 11223, the partition 1112 includes a partition 11121, the partition 11121 is used to separate the interior of the shell body 1111 into a first accommodating space 1113 and a second accommodating space 1114, the partition 11121 is provided with a second connecting surface 11124, and the first connecting surface 11223 is connected to the second connecting surface 11124.

[0116] It can be understood that the first connecting surface 11223 is arranged on the side of the first connecting portion 11222 facing the partition 1112, and the second connecting surface 11124 is arranged on the side of the partition 11121 facing the slot wedge 1122, and the first connecting surface 11223 and the second connecting surface 11124 are adhered to each other and connected together.

[0117] In some embodiments, the first connecting surface 11223 is a plane, and the second connecting surface 11124 is also a plane. The first connecting surface 11223 and the second connecting surface 11124 are attached to each other and connected together.

[0118] In other embodiments, the first connecting surface 11223 is a curved surface, and the second connecting surface 11124 is also a curved surface. The shape of the first connecting surface 11223 is adapted to the shape of the second connecting surface 11124 so that the first connecting surface 11223 and the second connecting surface 11124 can be attached to each other and connected together.

[0119] By adopting the above technical solution, the connection area between the slot wedge 1122 and the separator 1112 is effectively increased, thereby further improving the connection strength between the slot wedge 1122 and the separator 1112.

[0120] In some embodiments of the present application, please refer to Figures 12 to 14 together. The partition 1112 includes a partition portion 11121 and a second connecting portion 11125. The partition portion 11121 is used to separate the interior of the shell body 1111 into a first accommodating space 1113 and a second accommodating space 1114. The second connecting portion 11125 is arranged on the side of the partition portion 11121 facing the stator 112. The second connecting portion 11125 extends into the winding slot 1123 and is connected to the slot wedge 1122.

[0121] The second connecting portion 11125 is a component used to connect to the slot wedge 1122. At least a portion of the partition 11121 is positioned opposite the slot wedge 1122 via the notch 11235 of the winding slot 1123. The second connecting portion 11125 is disposed at the portion of the partition 11121 opposite the slot wedge 1122 and on the side of the partition 11121 facing the slot wedge 1122. One end of the second connecting portion 11125 is connected to the partition 11121, while the other end of the first connecting portion 1122 extends into the winding slot 1123 via the notch 11235 of the winding slot 1123 and connects to the slot wedge 1122. The number of second connecting portions 11125 can be one or more. In this embodiment, to further enhance the connection strength between the slot wedge 1122 and the partition 1112, multiple second connecting portions 11125 are provided, distributed along the length of the slot wedge 1122.

[0122] By adopting the above technical solution, since the second connecting part 11125 extends into the winding slot 1123 and is connected to the slot wedge 1122, the interference between the separator 1112 and the two adjacent iron cores 1121 can be reduced, thereby effectively reducing the connection stress between the slot wedge 1122 and the separator 1112, thereby effectively improving the connection stability between the slot wedge 1122 and the separator 1112.

[0123] In some embodiments of the present application, please refer to Figure 12, the slot wedge 1122 includes an inserting portion 11221, the inserting portion 11221 is inserted into the winding slot 1123, the inserting portion 11221 is provided with a third connecting surface 11224, the second connecting portion 11125 is provided with a fourth connecting surface 11126, and the third connecting surface 11224 is connected to the fourth connecting surface 11126.

[0124] It can be understood that the third connecting surface 11224 is arranged on the side of the plug-in portion 11221 facing the partition 1112, and the fourth connecting surface 11126 is arranged on the side of the second connecting portion 11125 facing the slot wedge 1122, and the third connecting surface 11224 and the fourth connecting surface 11126 are adhered to each other and connected together.

[0125] In some embodiments, the third connecting surface 11224 is a plane, and the fourth connecting surface 11126 is also a plane. The third connecting surface 11224 and the fourth connecting surface 11126 are attached to each other and connected together.

[0126] In other embodiments, the third connecting surface 11224 is a curved surface, and the fourth connecting surface 11126 is also a curved surface. The shape of the third connecting surface 11224 is adapted to the shape of the fourth connecting surface 11126 so that the third connecting surface 11224 and the fourth connecting surface 11126 can be attached to each other and connected together.

[0127] By adopting the above technical solution, the connection area between the slot wedge 1122 and the separator 1112 is effectively increased, thereby further improving the connection strength between the slot wedge 1122 and the separator 1112.

[0128] In other embodiments of the present application, please refer to Figure 13, the slot wedge 1122 includes an inserting portion 11221, the inserting portion 11221 is inserted into the winding slot 1123, the inserting portion 11221 is provided with a second connecting hole 11225, and the second connecting portion 11125 is connected to the second connecting hole 11225.

[0129] The second connection hole 11225 is a structure that passes through the insertion portion 11221. The second connection portion 11125 is connected to the second connection hole 11225, that is, at least a portion of the second connection portion 11125 is disposed within the second connection hole 11225. The second connection portion 11125 may or may not pass through the second connection hole 11225, and this is not specifically limited herein. The shape of the second connection portion 11125 is compatible with the shape of the second connection hole 11225. For example, if the second connection portion 11125 is cylindrical, the second connection hole 11225 is also cylindrical. For another example, if the second connection portion 11125 is prismatic, the second connection hole 11225 is also prismatic.

[0130] In some other embodiments of the present application, please refer to Figure 14, the slot wedge 1122 includes an inserting portion 11221, the inserting portion 11221 is inserted into the winding groove 1123, the inserting portion 11221 is provided with a second connecting groove 11226, and the second connecting portion 11125 is connected to the second connecting groove 11226.

[0131] Second connecting groove 11226 is recessed on the side of inserting portion 11221 facing partition 1112. Second connecting portion 11125 is connected to second connecting groove 11226, i.e., at least a portion of second connecting portion 11125 is disposed within second connecting groove 11226. The shape of second connecting portion 11125 matches the shape of second connecting groove 11226. For example, if second connecting portion 11125 is cylindrical, second connecting groove 11226 also has a cylindrical structure. In another example, if second connecting portion 11125 is prismatic, second connecting groove 11226 also has a prismatic structure.

[0132] By adopting the above technical solution, the connection area between the slot wedge 1122 and the separator 1112 is effectively increased, thereby further improving the connection strength between the slot wedge 1122 and the separator 1112.

[0133] In some embodiments of the present application, referring to FIG. 8 , the slot wedge 1122 includes an inserting portion 11221 and a limiting portion 11227 . The inserting portion 11221 is inserted into the winding slot 1123 . The limiting portion 11227 is connected to one end of the inserting portion 11221 and abuts against two adjacent iron cores 1121 .

[0134] The limiting portion 11227 is a component used to limit the depth position of the plug-in portion 11221 when inserted into the winding groove 1123. In some embodiments, the limiting portion 11227 and the plug-in portion 11221 are perpendicular to each other. When the plug-in portion 11221 is inserted into the winding groove 1123, one end of the limiting portion 11227 abuts against one iron core 1121, and the other end of the limiting portion 11227 abuts against the other iron core 1121. At this time, the plug-in portion 11221 cannot be further inserted into the winding groove 1123. The limiting portion 11227 can be integrally formed with the plug-in portion 11221, for example, the limiting portion 11227 and the plug-in portion 11221 are integrally formed through an injection molding process. The limiting portion 11227 can be separately connected to the plug-in portion 11221, for example, the limiting portion 11227 and the plug-in portion 11221 are separately molded and then connected together.

[0135] By adopting the above technical solution, the position of the slot wedge 1122 in the winding groove 1123 is effectively limited, thereby effectively reducing the risk of the slot wedge 1122 escaping from the winding groove 1123.

[0136] In some embodiments of the present application, referring to FIG. 8 , a relief opening 11228 is provided at the connection between the plug-in portion 11221 and the limiting portion 11227 .

[0137] It is understood that the escape opening 11228 is recessed at the connection between the plug portion 11221 and the stop portion 11227. In some embodiments, the escape opening 11228 is provided on one side of the connection between the plug portion 11221 and the stop portion 11227. In other embodiments, the escape opening 11228 is provided on two opposite sides of the connection between the plug portion 11221 and the stop portion 11227.

[0138] During actual use, the corner of the iron core 1121 close to the winding groove 1123 is likely to interfere with the connection between the plug-in part 11221 and the limiting part 11227, resulting in the plug-in part 11221 being unable to be fully inserted into the winding groove 1123. By providing an avoidance opening 11228 at the connection between the plug-in part 11221 and the limiting part 11227, the iron core 1121 is effectively avoided, thereby effectively improving the mutual interference between the slot wedge 1122 and the iron core 1121.

[0139] In some embodiments of the present application, referring to FIG. 8 , the slot wedge 1122 includes an inserting portion 11221 , which is inserted into the winding slot 1123 , and an inserting end of the inserting portion 11221 is provided with a chamfered structure 11229 .

[0140] The insertion end of the plug portion 11221 is the end that first enters the winding groove 1123 during insertion of the plug portion 11221. As the plug portion 11221 is inserted into the winding groove 1123, the width of the insertion end of the plug portion 11221 gradually increases, forming a chamfered structure 11229. The chamfered structure 11229 can be a chamfered angle structure or a rounded angle structure, which is not specifically limited here.

[0141] By adopting the above technical solution, it is easy to insert the slot wedge 1122 into the winding slot 1123, thereby effectively improving the assembly efficiency of the stator 112.

[0142] In some embodiments of the present application, please refer to Figures 9 to 14. The winding groove 1123 has a first groove wall 11231 and a second groove wall 11232 arranged opposite to each other. The first groove wall 11231 has a first card slot 11233, and the second groove wall 11232 has a second card slot 11234 opposite to the first card slot 11233. One side of the slot wedge 1122 is inserted into the first card slot 11233, and the other side of the slot wedge 1122 is inserted into the second card slot 11234.

[0143] It can be understood that the first slot wall 11231 is a side wall of one core 1121, and the second slot wall 11232 is a side wall of another core 1121 adjacent to the first slot wall 1121. The first slot wall 11231 and the second slot wall 11232 are spaced apart to form the winding slot 1123. The first slot wall 11231 is recessed away from the second slot wall 11232 to form a first retaining groove 11233, and the second slot wall 11232 is recessed away from the first slot wall 11231 to form a second retaining groove 11234. During the process of inserting the slot wedge 1122 into the winding slot 1123, one side of the slot wedge 1122 is inserted into the first slot 11233, and the other side of the slot wedge 1122 is inserted into the second slot 11234. In this way, the first slot wall 11231 and the second slot wall 11232 jointly limit the position of the slot wedge 1122 along its width direction (for example, the Y direction shown in Figures 9 to 14), and the first slot 11233 and the second slot 11234 jointly limit the position of the slot wedge 1122 along its thickness direction (for example, the X direction shown in Figures 9 to 14).

[0144] By adopting the above technical solution, the position of the slot wedge 1122 in the winding groove 1123 is effectively limited, thereby effectively reducing the risk of the slot wedge 1122 escaping from the winding groove 1123.

[0145] In some embodiments of the present application, please refer to Figures 8 to 14 together. The slot wedge 1122 includes an inserting portion 11221 and a limiting portion 11227. The inserting portion 11221 is inserted into the winding groove 1123. The limiting portion 11227 is connected to one end of the inserting portion 11221 and abuts against the two adjacent iron cores 1121. The winding groove 1123 has a first slot wall 11231 and a second slot wall 11232 that are oppositely arranged. The first slot wall 11231 is provided with a first card slot 11233, and the second slot wall 11232 is provided with a second card slot 11234 opposite to the first card slot 11233. One side of the inserting portion 11221 is inserted into the first card slot 11233, and the other side of the inserting portion 11221 is inserted into the second card slot 11234.

[0146] By adopting the above technical solution, the limiting portion 11227 limits the position of the plug-in portion 11221 along its length direction, the first slot wall 11231 and the second slot wall 11232 jointly limit the position of the slot wedge 1122 along its width direction (for example, the Y direction shown in Figures 9 to 14), and the first card slot 11233 and the second card slot 11234 jointly limit the position of the slot wedge 1122 along its thickness direction (for example, the X direction shown in Figures 9 to 14), thereby effectively limiting the position of the slot wedge 1122 in the winding slot 1123 and effectively reducing the risk of the slot wedge 1122 detaching from the winding slot 1123.

[0147] In some embodiments of the present application, the slot wedge 1122 and the separator 1112 are riveted, welded, or bonded.

[0148] In some embodiments, the slot wedge 1122 includes a plug-in portion 11221 and a first connecting portion 11222, the plug-in portion 11221 is plugged into the winding groove 1123, the first connecting portion 11222 is arranged on the side of the plug-in portion 11221 facing the partition 1112, the partition 1112 includes a partition 11121, and the partition 11121 is provided with a first connecting hole 11122, the first connecting portion 11222 extends out of the winding groove 1123 and passes through the first connecting hole 11122, and the first connecting portion 11222 is hot-riveted to the first connecting hole 11122 by heating the end of the first connecting portion 11222 away from the plug-in portion 11221.

[0149] In other embodiments, the slot wedge 1122 includes an inserting portion 11221 and a first connecting portion 11222, the inserting portion 11221 is inserted into the winding groove 1123, the first connecting portion 11222 is arranged on the side of the inserting portion 11221 facing the partition 1112, the partition 1112 includes a partitioning portion 11121, the partitioning portion 11121 is provided with a first connecting groove 11123, and the first connecting portion 11222 extends out of the winding groove 1123 and is adhered to the first connecting groove 11123.

[0150] In some other embodiments, the slot wedge 1122 includes an insert portion 11221 and a first connecting portion 11222, the insert portion 11221 is inserted into the winding slot 1123, the first connecting portion 11222 is arranged on the side of the insert portion 11221 facing the partition 1112, the first connecting portion 11222 is provided with a first connecting surface 11223, the partition 1112 includes a partition portion 11121, the partition portion 11121 is provided with a second connecting surface 11124, the first connecting surface 11223 is welded to the second connecting surface 11124, or the first connecting surface 11223 is bonded to the second connecting surface 11124.

[0151] In some further embodiments, the slot wedge 1122 includes a plug-in portion 11221, a third connecting surface 11224 is provided on the side of the plug-in portion 11221 facing the partition 1112, the partition 1112 includes a partition 11121 and a second connecting portion 11125, the second connecting portion 11125 is arranged on the side of the partition 11121 facing the stator 112, the second connecting portion 11125 is provided with a fourth connecting surface 11126, the third connecting surface 11224 and the fourth connecting surface 11126 are welded to each other, or the third connecting surface 11224 and the fourth connecting surface 11126 are bonded to each other.

[0152] By adopting the above technical solution, the slot wedge 1122 and the separator 1112 are effectively connected.

[0153] In some embodiments of the present application, the stator 112 includes an iron core 1121 , and the iron core 1121 is connected to the separator 1112 .

[0154] It can be understood that when the stator 112 further includes a base 1124 , the core 1121 is disposed on the base 1124 , and the side of the core 1121 facing away from the base 1124 is connected to the partition 1112 .

[0155] By adopting the above technical solution, it is easy to connect the stator 112 and the separator 1112.

[0156] In some embodiments of the present application, the core 1121 is bonded to the separator 1112 .

[0157] By adopting the above technical solution, it is easier to connect the stator 112 and the separator 1112.

[0158] Of course, in other embodiments, the core 1121 may also be connected to the partition 1112 via a connecting component. For example, the core 1121 may be connected to the partition 1112 via fasteners such as screws or rivets.

[0159] In some embodiments of the present application, referring to FIG. 5 , there are two stators 112 , there are two partitions 1112 , the rotor 113 is disposed between the two stators 112 , one partition 1112 is disposed between the rotor 113 and one stator 112 , and another partition 1112 is disposed between the rotor 113 and another stator 112 .

[0160] In other words, in this embodiment, the motor 11 is a dual-stator 112 motor 11, the shell body 1111 and the two partitions 1112 together enclose a second accommodating space 1114, and one partition 1112 forms a first accommodating space 1113 on the side facing away from the second accommodating space 1114, and the other partition 1112 forms another first accommodating space 1113 on the side facing away from the second accommodating space 1114, the rotor 113 is arranged in the second accommodating space 1114, one stator 112 is arranged in one first accommodating space 1113, and the other stator 112 is arranged in the other first accommodating space 1113.

[0161] By adopting the above technical solution, the deformation of the separator 1112 toward the rotor 113 is effectively improved, thereby effectively reducing the risk of interference between the separator 1112 and the rotor 113, which is conducive to improving the performance of the dual-stator 112 motor 11.

[0162] In some embodiments of the present application, referring to FIG6 , there are two rotors 113 , there are two partitions 1112 , the stator 112 is disposed between the two rotors 113 , one partition 1112 is disposed between the stator 112 and one rotor 113 , and the other partition 1112 is disposed between the stator 112 and the other rotor 113 .

[0163] In other words, in this embodiment, the motor 11 is a dual-rotor 113 motor 11, the shell body 1111 and the two partitions 1112 together enclose a first accommodating space 1113, and one partition 1112 forms a second accommodating space 1114 on the side facing away from the first accommodating space 1113, and the other partition 1112 forms another second accommodating space 1114 on the side facing away from the first accommodating space 1113, the stator 112 is arranged in the first accommodating space 1113, one rotor 113 is arranged in one second accommodating space 1114, and the other rotor 113 is arranged in the other second accommodating space 1114.

[0164] In this embodiment, one side of the stator 112 along the axial direction of the motor 11 is connected to one separator 1112, and the other side of the stator 112 along the axial direction of the motor 11 is connected to another separator 1112. For example, when the stator 112 includes a base 1124, a plurality of cores 1121, and a plurality of slot wedges 1122, the base 1124 is provided with a plurality of cores 1121 on a side facing one separator 1112, and the base 1124 is also provided with a plurality of cores 1121 on a side facing the other separator 1112. The plurality of slot wedges 1122 provided on the side of the base 1124 facing one separator 1112 are connected to the opposite separator 1112, and the plurality of slot wedges 1122 provided on the side of the base 1124 facing the other separator 1112 are connected to the opposite separator 1112. For another example, when the stator 112 includes a base 1124 and multiple iron cores 1121, multiple iron cores 1121 are provided on the side of the base 1124 facing one partition 1112 and the multiple iron cores 1121 are connected to the opposite partition 1112, and multiple iron cores 1121 are also provided on the side of the base 1124 facing another partition 1112 and the multiple iron cores 1121 are connected to the opposite partition 1112.

[0165] By adopting the above technical solution, the deformation of the separator 1112 toward the rotor 113 is effectively improved, thereby effectively reducing the risk of interference between the separator 1112 and the rotor 113, which is beneficial to improving the performance of the dual-rotor 113 motor 11.

[0166] In some embodiments of the present application, the first accommodation space 1113 is used to accommodate a cooling medium.

[0167] The cooling medium is used to absorb heat generated by the stator 112 and other heat-generating components. The cooling medium can be statically contained within the first accommodation space 1113, or it can circulate into the first accommodation space 1113. Alternatively, the cooling medium can include, but is not limited to, cooling oil, cooling water, and the like, and is not specifically limited here.

[0168] In the related art, since the first accommodating space 1113 contains a cooling medium, pressure is generated in the first accommodating space 1113 , and the pressure acts on the partition 1112 , causing the partition 1112 to deform toward the rotor 113 , thereby causing interference between the rotor 113 and the partition 1112 .

[0169] By connecting the stator 112 and the separator 1112, the pressure of the cooling medium on the separator 1112 can be effectively overcome, thereby effectively improving the deformation of the separator 1112 toward the rotor 113, thereby effectively reducing the risk of interference between the separator 1112 and the rotor 113, which is beneficial to improving the performance of the motor 11. At the same time, the stator 112 can be in direct contact with the cooling medium, so that the cooling medium can effectively absorb the heat generated by the stator 112, thereby effectively improving the cooling efficiency of the motor 11.

[0170] In some embodiments of the present application, please refer to FIG. 5 and FIG. 6 . The motor 11 further includes a second housing 114 . The first housing 111 is disposed in the second housing 114 .

[0171] The second housing 114 is a component that provides an installation environment for the first housing 111 and other components of the motor 11. Optionally, the second housing 114 can be an integrally formed component or an assembled component assembled from multiple parts. The material of the second housing 114 can be, but is not limited to, copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc. In some embodiments, when the second housing 114 includes multiple parts, some parts of the second housing 114 can be made of metals such as copper, iron, aluminum, stainless steel, aluminum alloy, etc., and other parts of the second housing 114 can be made of plastic, which is not specifically limited here.

[0172] By adopting the above technical solution, the protection performance of the motor 11 is effectively improved.

[0173] In some embodiments of the present application, the motor 11 is an axial flux motor 11 .

[0174] By adopting the above technical solution, the axial dimension of the motor 11 is effectively reduced.

[0175] In the second aspect, please refer to FIG. 3 and FIG. 4 together. The embodiment of the present application further provides an electric drive device 10 , comprising the motor 11 described in any one of the above embodiments.

[0176] The electric drive device 10 provided in the embodiment of the present application adopts the above-mentioned motor 11 , thereby effectively improving the performance of the electric drive device 10 .

[0177] In a third aspect, referring to FIG. 1 , an embodiment of the present application further provides an electric drive system 100 , comprising a battery 20 and the electric drive device 10 , wherein the battery 20 is electrically connected to the electric drive device 10 .

[0178] The electric drive system 100 provided in the embodiment of the present application adopts the above-mentioned electric drive device 10 , thereby effectively improving the performance of the electric drive system 100 .

[0179] In a fourth aspect, referring to FIG. 1 , an embodiment of the present application further provides an electric device, including the above-mentioned electric drive system 100 .

[0180] The electric device provided in the embodiment of the present application adopts the above-mentioned electric drive system 100, thereby effectively improving the performance of the electric device.

[0181] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A motor, characterized in that: The motor comprises: A first housing, comprising a housing body and a partition, wherein the partition is arranged in the housing body to separate the interior of the housing body into a first accommodation space and a second accommodation space; a stator, accommodated in the first accommodation space, the stator being connected to the partition; The rotor is accommodated in the second accommodation space.

2. The motor according to claim 1, characterized in that The stator comprises a plurality of iron cores and a plurality of slot wedges, a winding slot is formed between two adjacent iron cores, and the slot wedge is inserted into the winding slot and connected to the partition.

3. The motor according to claim 2, characterized in that The slot wedge includes an inserting portion and a first connecting portion, the inserting portion is inserted into the winding slot, the first connecting portion is arranged on a side of the inserting portion facing the partition, and the first connecting portion extends out of the winding slot and is connected to the partition.

4. The motor according to claim 3, characterized in that The partition member includes a partition portion, and the partition portion is used to separate the interior of the shell body into the first accommodation space and the second accommodation space; The partition portion is provided with a first connection hole, and the first connection portion is connected to the first connection hole; or, The partition portion is provided with a first connecting groove, and the first connecting portion is connected in the first connecting groove.

5. The motor according to claim 3, characterized in that The first connection portion is provided with a first connection surface, the partition includes a partition portion, the partition portion is used to separate the interior of the shell body into the first accommodating space and the second accommodating space, the partition portion is provided with a second connection surface, and the first connection surface is connected to the second connection surface.

6. The motor according to claim 2, characterized in that The partition includes a partition portion and a second connecting portion, the partition portion is used to separate the interior of the shell body into the first accommodating space and the second accommodating space, the second connecting portion is arranged on a side of the partition portion facing the stator, the second connecting portion extends into the winding slot and is connected to the slot wedge.

7. The motor according to claim 6, characterized in that The slot wedge includes an inserting portion, which is inserted into the winding slot, and the inserting portion is provided with a third connecting surface, and the second connecting portion is provided with a fourth connecting surface, and the third connecting surface is connected to the fourth connecting surface.

8. The motor according to claim 6, characterized in that The slot wedge comprises an inserting portion, and the inserting portion is inserted into the winding slot; The plug-in portion is provided with a second connection hole, and the second connection portion is connected to the second connection hole; or, The plug-in portion is provided with a second connection groove, and the second connection portion is connected in the second connection groove.

9. The motor according to claim 2, characterized in that The slot wedge comprises an inserting portion and a limiting portion, wherein the inserting portion is inserted into the winding slot, and the limiting portion is connected to one end of the inserting portion and abuts against two adjacent cores.

10. The motor according to claim 9, characterized in that An escape opening is provided at the connection between the plug-in portion and the limiting portion.

11. The motor according to claim 2, characterized in that The slot wedge comprises an inserting portion, which is inserted into the winding slot, and an inserting end of the inserting portion is provided with a chamfered structure.

12. The motor according to any one of claims 2 to 11, characterized in that: The winding groove has a first groove wall and a second groove wall that are arranged opposite to each other. The first groove wall is provided with a first card slot, and the second groove wall is provided with a second card slot opposite to the first card slot. One side of the groove wedge is inserted into the first card slot, and the other side of the groove wedge is inserted into the second card slot.

13. The motor according to any one of claims 2 to 12, characterized in that: The slot wedge is hot-riveted, welded or bonded to the partition.

14. The motor according to claim 1, characterized in that The stator includes an iron core connected to the separator.

15. The motor according to claim 14, characterized in that The core is bonded to the separator.

16. The motor according to any one of claims 1 to 15, characterized in that: The number of the stators is two, the number of the separators is two, the rotor is arranged between the two stators, one separator is arranged between the rotor and one stator, and the other separator is arranged between the rotor and the other stator.

17. The motor according to any one of claims 1 to 15, characterized in that: The number of the rotors is two, the number of the separators is two, the stator is arranged between the two rotors, one separator is arranged between the stator and one rotor, and the other separator is arranged between the stator and the other rotor.

18. The motor according to any one of claims 1 to 17, characterized in that: The first accommodating space is used to accommodate a cooling medium.

19. The motor according to any one of claims 1 to 18, characterized in that: The motor further includes a second housing, and the first housing is disposed in the second housing.

20. The motor according to any one of claims 1 to 19, characterized in that: The motor is an axial flux motor.

21. An electric drive device, characterized in that: The electric drive device comprises the motor according to any one of claims 1-20.

22. An electric drive system, characterized in that: The electric drive system comprises a battery and the electric drive device as claimed in claim 21, wherein the battery is electrically connected to the electric drive device.

23. An electric device, characterized in that: The electric device comprises the electric drive system according to claim 22.

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