CN220342205U - Motor assembly and new energy automobile - Google Patents

Abstract

The utility model provides a motor assembly and a new energy automobile, the motor assembly comprises a stator and a rotor assembly rotatably arranged in the stator, the stator forms a plurality of induction spaces, the rotor assembly comprises a plurality of rotors which are arranged in parallel and are parallel to each other in axis, and the plurality of rotors are arranged in one-to-one correspondence with the plurality of induction spaces and are rotatably arranged in the corresponding induction spaces. Compared with the prior art, the motor assembly has the advantages that the plurality of rotors are integrated in the same stator, and the plurality of motors are respectively arranged in the automobile, so that the space in the automobile can be greatly saved. The novel energy automobile with the motor assembly skillfully arranges the rotors in the same stator, and the rotors can selectively output power outwards according to different driving working conditions, so that the energy consumption of the motor assembly is reduced, the driving range of the novel energy automobile is further improved, and the installation space in the automobile is saved.

Description

Motor assembly and new energy automobile

Technical Field

The utility model relates to the field of new energy automobile motors, in particular to a motor assembly and a new energy automobile.

Background

The motor is a main power source of the electric automobile, along with the development of the pure electric automobile, the requirements of people on the endurance mileage of the pure electric automobile are higher and higher, the comprehensive endurance mileage of the automobile is limited by the current automobile battery technology, and the endurance can not be improved greatly. The existing pure electric vehicle uses a single-speed gearbox, the power performance of the single-speed gearbox is completely dependent on the driving motor, and the requirement on the performance of the driving motor is high, namely the driving motor is required to provide high driving torque in a constant torque area and high rotating speed in a constant power area. However, the single-speed gearbox cannot be used for shifting gears at different speeds of the automobile, so that the automobile has certain power loss when running at different speeds, and the endurance mileage of the pure electric automobile is reduced.

In the prior art, for example, chinese patent document (publication No. CN 218408478U) discloses a vehicle gear shifting system and driving device, which relates to the field of electric vehicles, and the gear shifting system comprises a plurality of driving motors, and can change the gear of the vehicle by adjusting the number of the working motors, so as to meet the gear shifting requirement of the electric vehicle. However, the plurality of motors in the gear shifting system are respectively and independently arranged, and each motor occupies a part of the space in the vehicle, so that when the plurality of motors are simultaneously installed on the vehicle, the technical problem of occupying excessive space in the vehicle is caused.

Disclosure of Invention

The utility model aims to solve the technical problem that in the prior art, an electric automobile is provided with a plurality of independent motors for realizing a gear shifting function, so that excessive space in the automobile is occupied.

The embodiment of the utility model discloses a motor assembly, which comprises a stator and a rotor assembly rotatably arranged in the stator.

The stator is formed with a plurality of induction spaces that are mutually independent, and the inside in each of a plurality of induction spaces all is provided with stator coil.

The rotor assembly comprises a plurality of rotors which are arranged in parallel and are parallel to each other in axis, the plurality of rotors are arranged in one-to-one correspondence with the plurality of induction spaces, each rotor in the plurality of rotors is at least partially rotated and arranged in the corresponding induction space, and the corresponding rotor can be independently driven to rotate by supplying power to the stator coils arranged in the induction spaces.

By adopting the technical scheme, the motor assembly integrates the plurality of rotors in the same stator, and compared with the prior art, the motor assembly is provided with the plurality of motors in the automobile respectively, so that the space in the automobile can be greatly saved. In addition, a plurality of induction spaces of the motor assembly are independent from each other, any one or a plurality of rotors can be driven to rotate, and each rotor rotation does not affect the other rotors.

In addition, the rotors of the motor assembly are arranged in parallel, and the axes of the rotors are parallel to each other, so that compared with a motor in which the rotors are arranged at intervals along the axis direction in the prior art, the size of the motor assembly along the axis direction is greatly reduced, the rotational speed decoupling of each rotor is realized, and the rotational speed of each rotor can be controlled more flexibly.

The embodiment of the utility model also discloses a motor assembly, which further comprises a motor shaft assembly in transmission connection with the rotor assembly, wherein the motor shaft assembly comprises an intermediate transmission part and an output shaft.

Wherein one end of the intermediate transmission member is engaged with the output shaft and the other end of the intermediate transmission member is selectively engaged with a portion of at least one of the plurality of rotors located outside the sensing space.

By adopting the technical scheme, when the motor assembly is used, when the external required power is smaller, the intermediate transmission part can be selectively connected with one of the rotors, the other rotors do not output power, the energy consumption is reduced, when the external required power is increased, the number of the rotors connected with the intermediate transmission part can be increased by controlling the intermediate transmission part, and the overlarge work load of a single rotor is avoided while the external requirement on the power is met.

The embodiment of the utility model also discloses a motor assembly, wherein the intermediate transmission part comprises a meshing part and a meshed part which are mutually matched, the meshing part is in transmission connection with one end of the plurality of rotors, which is positioned outside the induction space, the meshed part is in transmission connection with the output shaft, and the meshing part is in transmission connection with the meshed part.

By adopting the technical scheme, the power output by the rotors of the motor assembly is smoothly transmitted to the transmission part at the rear end through the matching of the meshing part and the meshed part.

The utility model further discloses a motor assembly, one end of each rotor located outside the induction space is in transmission connection with an input shaft, the meshing part comprises a planetary gear set, the planetary gear set comprises a plurality of planetary gears which are arranged in one-to-one correspondence with the plurality of rotors, each planetary gear in the plurality of planetary gears is fixedly connected to one end, far away from the rotor, of the corresponding input shaft, the meshed part comprises a sun gear fixedly connected to an output shaft, the plurality of planetary gears are distributed on the outer peripheral side of the sun gear at intervals along the circumferential direction of the sun gear, and the sun gear is meshed with each planetary gear tooth.

By adopting the technical scheme, the input shaft on each rotor is in transmission connection with the sun gear of the output shaft through the corresponding planet gears, and then the rotation on the rotor is transmitted to the output shaft.

The embodiment of the utility model also discloses a motor assembly, wherein a clutch component is arranged between each input shaft and the corresponding rotor, and at least one input shaft in the plurality of input shafts is selectively engaged with the corresponding rotor through the clutch component.

By adopting the technical scheme, each input shaft can be disconnected or connected with the transmission of the rotor through the clutch component, and when each clutch component is disconnected, the power output of the motor assembly to the outside can be cut off.

The embodiment of the utility model also discloses a motor assembly, wherein the plurality of input shafts comprise a main input shaft and an auxiliary input shaft, the main input shaft is fixedly connected with the corresponding rotor, a clutch member is arranged between the auxiliary input shaft and the corresponding rotor, and the auxiliary input shaft is selectively engaged with or separated from the corresponding rotor through the clutch member.

By adopting the technical scheme, the main input shaft is fixedly connected with the corresponding rotor, so that the power of the corresponding rotor is transmitted to the output shaft through the main input shaft, when the power required by the outside is increased, the clutch members between the auxiliary input shaft and the corresponding rotor are engaged, the number of the clutch members is reduced, the structure is simplified, and the production cost of the motor assembly is reduced.

The embodiment of the utility model also discloses a motor assembly, wherein the stator comprises a main body part and a coil fixing part, a cavity is formed in the main body part, and the coil fixing part comprises a first part and a second part.

The first portion extends along the inner wall surface of the main body portion and is fixed to the inner wall surface of the main body portion as a whole.

The second part is arranged in the cavity in a split mode, the end portion of the second part is connected with the first part, and the induction space is a space formed by surrounding the first part and the second part.

By adopting the technical scheme, each induction space is formed by surrounding the first part and the second part, so that each rotor is isolated, and the influence of a plurality of rotors during working is avoided.

The embodiment of the utility model also discloses a motor assembly, wherein a plurality of stator teeth are formed on the first part and the second part, and a notch is formed between two adjacent stator teeth in the plurality of stator teeth.

Wherein the plurality of stator teeth of the first portion are evenly distributed along the circumference of the main body portion; the plurality of stator teeth of the second part are uniformly distributed along the circumferential direction of the induction space; the stator coil is wound to the stator teeth and is located within the slot.

By adopting the technical scheme, the stator teeth formed on the first part and the second part are wound with the stator coils, so that a magnetic field encircling the rotor along the circumferential direction is formed, and the rotating speed of the rotor is ensured to be stable.

The embodiment of the utility model also discloses a motor assembly, which further comprises a shell, wherein the stator and the rotor assembly are positioned in the shell, through holes corresponding to the parts of the plurality of rotors positioned outside the induction space are formed in the shell, and the parts of the plurality of rotors positioned outside the induction space extend outside the shell through the through holes.

By adopting the technical scheme, the shell can protect the stator and rotor assembly inside from being damaged by other parts, and the through hole formed in the shell can allow the rotor to extend into the shell to be connected with an external intermediate transmission part.

The embodiment of the utility model also discloses a new energy automobile, which comprises any motor assembly.

By adopting the technical scheme, as the rotors of the motor assembly are respectively arranged in the independent induction spaces, the number of the rotors of the output power can be controlled, and the motor assembly can adjust the output power to match different running conditions of the new energy automobile, the energy utilization efficiency is improved, and the driving range of the new energy automobile is improved. In addition, the motor assembly has a compact structure, and can save the installation space in the vehicle.

The beneficial effects of the utility model are as follows:

the utility model provides a motor assembly and a new energy automobile, the motor assembly comprises a stator and a rotor assembly rotatably arranged in the stator, the stator forms a plurality of induction spaces, the rotor assembly comprises a plurality of rotors which are arranged in parallel and are parallel to each other in axis, and the plurality of rotors are arranged in one-to-one correspondence with the plurality of induction spaces and are rotatably arranged in the corresponding induction spaces. Compared with the prior art, the motor assembly has the advantages that the plurality of rotors are integrated in the same stator, and the plurality of motors are respectively arranged in the automobile, so that the space in the automobile can be greatly saved.

Further, the motor assembly also includes a motor shaft assembly drivingly connected to the rotor assembly, the motor shaft assembly including an intermediate transmission member and an output shaft. When the external demand power is increased, the number of the rotors connected with the intermediate transmission part can be increased by controlling the intermediate transmission part, so that the external demand for power is met, and meanwhile, the overlarge work load of a single rotor is avoided.

The motor assembly is skillfully arranged in the same stator, and the rotors can selectively output power outwards, so that the driving range of the new energy automobile is improved, and meanwhile, the installation space in the automobile is saved.

Drawings

FIG. 1 is a cross-sectional view of a motor assembly provided by an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a motor assembly according to an embodiment of the present utility model;

FIG. 3 is a schematic illustration of a motor assembly with two clutch members disconnected;

FIG. 4 is a schematic illustration of a motor assembly provided with one clutch member disengaged and another clutch member engaged in accordance with an embodiment of the present utility model;

fig. 5 is a schematic view illustrating a state in which two clutch members of a motor assembly are engaged according to an embodiment of the present utility model.

Reference numerals illustrate:

10. a motor assembly;

110. a stator;

111. an induction space;

112. a main body portion;

113. a coil fixing part;

1131. a first portion; 1132. a second portion;

114. stator teeth;

120. a rotor assembly;

121. a rotor;

130. a motor shaft assembly;

131. an intermediate transmission member;

1310. an engagement portion; 1311. a planetary gear set; 1312. a planet wheel;

1313. an engaged portion; 1314. a sun gear;

132. an output shaft;

133. an input shaft;

1331. a main input shaft; 1332. an auxiliary input shaft;

134. a clutch member;

140. a housing.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings.

In the prior art, a plurality of independent motors are arranged for realizing a gear shifting function of an electric automobile, so that the technical problem of occupying too much space in the automobile is caused. As shown in fig. 1 and 2, an embodiment of the present utility model discloses a motor assembly 10 including a stator 110, a rotor assembly 120 rotatably disposed within the stator 110.

Specifically, the stator 110 is formed with a plurality of induction spaces 111 independent of each other, and a stator coil (not shown in the drawing) is provided inside each of the plurality of induction spaces 111. It should be noted that, the stator 110 may form two, three, four or five induction spaces 111, preferably, as shown in fig. 1, in this embodiment, three induction spaces 111 are formed in the stator 110, and regarding the number of induction spaces 111 formed in the stator 110, those skilled in the art may design according to practical situations and specific requirements, and this embodiment is not limited in particular.

More specifically, the rotor assembly 120 includes a plurality of rotors 121 disposed in parallel and having axes parallel to each other, the plurality of rotors 121 are disposed in one-to-one correspondence with the plurality of sensing spaces 111, each rotor 121 of the plurality of rotors 121 is at least partially rotatably disposed in a corresponding sensing space 111, and the corresponding rotor 121 can be individually driven to rotate by supplying power to stator coils disposed in each sensing space 111. It should be noted that, in the present embodiment, three induction spaces 111 are formed in the stator 110, and the corresponding rotor assembly 120 includes three rotors 121.

More specifically, in the motor assembly 10, the plurality of rotors 121 are integrated in the same stator 110, so that the space in the vehicle can be greatly saved compared with the prior art that a plurality of motors are respectively arranged in the vehicle. In addition, the plurality of sensing spaces 111 of the motor assembly 10 are independent from each other, and can drive any one or more of the rotors 121 to rotate, and each rotor 121 does not affect the rest of the rotors 121.

In addition, the plurality of rotors 121 of the motor assembly 10 are arranged in parallel and the axes are parallel to each other, compared with the motor in which the plurality of rotors 121 are arranged at intervals along the axis direction in the prior art, the size of the motor assembly 10 along the axis direction is greatly reduced, the rotational speed decoupling of each rotor 121 is realized, and the rotational speed of each rotor 121 can be controlled more flexibly.

Further, the embodiment of the utility model also discloses a motor assembly 10, the motor assembly 10 further comprises a motor shaft assembly 130 in transmission connection with the rotor assembly 120, and the motor shaft assembly 130 comprises an intermediate transmission part 131 and an output shaft 132.

Specifically, one end of the intermediate transmission member 131 is engaged with the output shaft 132, and the other end of the intermediate transmission member 131 is selectively engaged with a portion of at least one rotor 121 of the plurality of rotors 121 located outside the sensing space 111. The other end of the intermediate transmission member 131 may be selectively engaged with a portion of one of the plurality of rotors 121 located outside the sensing space 111, a portion of the plurality of rotors 121 located outside the sensing space 111, or a portion of all of the rotors 121 located outside the sensing space 111.

More specifically, when the motor assembly 10 is in use, the intermediate transmission member 131 can be selectively engaged with one of the plurality of rotors 121 when the external demand power is small, the remaining rotors 121 do not output power, so that the energy consumption is reduced, and when the external demand power is increased, the number of the rotors 121 engaged with the intermediate transmission member 131 can be increased by controlling the intermediate transmission member 131, so that the external demand for power is met, and the overload of the workload of the single rotor 121 is avoided.

Still further, the embodiment of the present utility model further discloses a motor assembly 10, the intermediate transmission member 131 includes a meshing portion 1310 and a meshed portion 1313, which are mutually adapted, the meshing portion 1310 is drivingly connected to one end of the plurality of rotors 121 located outside the sensing space 111, the meshed portion 1313 is drivingly connected to the output shaft 132, and the meshing portion 1310 is drivingly connected to the meshed portion 1313.

Specifically, the power output from the plurality of rotors 121 of the motor assembly 10 is smoothly transmitted to the rear end transmission member by the engagement portion 1310 engaging with the engaged portion 1313.

More specifically, as shown in fig. 1 and 2, in the present embodiment, one end of each rotor 121 located outside the sensing space 111 is in transmission connection with the input shaft 133, the meshing portion 1310 includes a planetary gear set 1311, the planetary gear set 1311 includes a plurality of planetary gears 1312 disposed in one-to-one correspondence with the plurality of rotors 121, each planetary gear 1312 in the plurality of planetary gears 1312 is fixedly connected to one end of the corresponding input shaft 133 away from the rotor 121, the engaged portion 1313 includes a sun gear 1314 fixedly connected to the output shaft 132, the plurality of planetary gears 1312 are distributed on an outer peripheral side of the sun gear 1314 along a circumferential direction of the sun gear 1314 at intervals, and the sun gear 1314 is meshed with each planetary gear 1312. It should be noted that the transmission ratio between each planet 1312 and the sun 1314 is designed according to the actual situation and specific requirements, and the present embodiment is not limited thereto.

More specifically, in the present embodiment, the planet gears 1312 and the sun gear 1314 are straight-tooth gears, however, in another embodiment, the planet gears 1312 and the sun gear 1314 may be helical gears, which is not limited in this embodiment.

Specifically, as shown in fig. 2, in the present embodiment, the planetary gear set 1311 includes one sun gear 1314 and three planet gears 1312, and the spacing angle between the centers of two adjacent planet gears 1312 is 120 °.

More specifically, the input shaft 133 on each rotor 121 is in transmission connection with the sun gear 1314 of the output shaft 132 through the corresponding planet gears 1312, so that the rotation on the rotor 121 is transmitted to the output shaft 132, and the planetary gear set 1311 has the advantages of compact structure and small volume, and the three planet gears 1312 arranged at intervals along the circumferential direction of the sun gear 1312 can balance the inertia force on each planet gear 1312 and the input shaft 133, so that the stability of the motor assembly 10 in outputting power is improved.

As shown in fig. 2, in the present embodiment, the plurality of input shafts 133 includes a main input shaft 1331 and an auxiliary input shaft 1332, the main input shaft 1331 is fixedly connected with the corresponding rotor 121, a clutch member 134 is provided between the auxiliary input shaft 1332 and the corresponding rotor 121, and the auxiliary input shaft 1332 is selectively engaged with or disengaged from the corresponding rotor 121 by the clutch member 134. It should be noted that, the clutch member 134 may be a friction clutch, a side tooth clutch, a synchronous clutch or other components for interrupting power transmission commonly used in the art, and preferably, in this embodiment, the clutch member 134 is a synchronous clutch, which can be designed by those skilled in the art according to practical situations and specific requirements, and this embodiment is not limited thereto specifically.

Specifically, the main input shaft 1331 is fixedly connected with the corresponding rotor 121, so that power of the corresponding rotor 121 is transmitted to the output shaft 132 through the main input shaft 1331, and when the power required from the outside increases, the clutch members 134 between the auxiliary input shaft 1332 and the corresponding rotor 121 are engaged, and the structure reduces the number of the clutch members 134, simplifies the structure, and reduces the production cost of the motor assembly 10.

More specifically, as shown in fig. 2, in the present embodiment, the motor assembly 10 includes a main input shaft 1331 and two auxiliary input shafts 1332, and a clutch member 134 is disposed between the two auxiliary input shafts 1332 and the corresponding rotor 121, and the motor assembly 10 is used as a power source to be mounted on a new energy automobile, and output states under different operating conditions are described below.

When the new energy automobile is in a low-speed working condition, the motor assembly 10 is required to output low power, as shown in fig. 3, the clutch members 134 on the two auxiliary input shafts 1332 disconnect the power transmission of the corresponding rotors 121, at this time, the induction spaces 111 of the rotors 121 corresponding to the main input shafts 1331 are electrified, so that the rotors 121 rotate, and power is transmitted from the planetary gears 1312 to the sun gear 1314 through the main input shafts 1331 and is output from the output shafts 132.

When the new energy vehicle is in a medium speed condition, the power output by the single rotor 121 does not meet the requirement under the condition, as shown in fig. 4, the upper clutch member 134 of one of the two auxiliary input shafts 1332 is engaged with the corresponding rotor 121, the clutch member 134 on the other auxiliary input shaft 1332 is disconnected, and at this time, the main input shaft 1331 and one of the auxiliary input shafts 1332 in which the clutch member 134 is engaged can both transmit the power of the corresponding rotor 121 to the sun gear 1314 through the planetary gear 1312 and output from the output shaft 132.

When the new energy vehicle is started at a low speed, accelerated or operated at a high speed, and the motor assembly 10 is required to output high power, as shown in fig. 5, the clutch members 134 on the two auxiliary input shafts 1332 are engaged with the corresponding rotors 121, and at this time, the main input shaft 1331 and the two auxiliary input shafts 1332 rotate the power on the three rotors 121 to the sun gear 1314 through the planetary gears 1312, and output the power from the output shaft 132.

Of course, the number of the sensing spaces 111 and the rotors 121 of the motor assembly 10 is not limited to three in the present embodiment, and may be two, four or five according to actual requirements, and those skilled in the art may design the motor assembly according to actual situations and specific requirements, and the present embodiment is not limited thereto.

More specifically, the motor assembly 10 is not limited to be applied to a new energy automobile, but can be arranged on a fuel automobile or a hybrid automobile according to requirements, and can be arranged on other components needing to adjust output power according to requirements, and a person skilled in the art can design according to actual situations and specific requirements, and the embodiment is not limited in particular.

Compared with the prior art that part of electric automobiles are provided with a transmission structure at the output end of the motor in order to realize variable power adjustment of the motor under different working conditions, the motor efficiency is improved, but the transmission structure is complex, the use cost is high, and the motor assembly 10 provided by the embodiment skillfully arranges three rotors 121 in the same stator 110, realizes variable power of the motor through a group of planetary gear sets 1311, has simple structure, is easy to produce, and reduces the use cost.

In another embodiment, a clutch member 134 is disposed between each input shaft 133 and the corresponding rotor 121, at least one input shaft 133 of the plurality of input shafts 133 being selectively engaged with the corresponding rotor 121 by the clutch member 134.

Specifically, in such an embodiment, each input shaft 133 may be disconnected or engaged in transmission with the rotor 121 via the clutch members 134, and when each clutch member 134 is disconnected, the motor assembly 10 may be disconnected from the outside power output.

Still further, as shown in fig. 1, the embodiment of the present utility model further discloses a motor assembly 10, wherein the stator 110 includes a main body 112 and a coil fixing portion 113, a cavity is formed in the main body 112, and the coil fixing portion 113 includes a first portion 1131 and a second portion 1132.

Specifically, the first portion 1131 extends along the inner wall surface of the main body 112, and is fixed integrally with the inner wall surface of the main body 112.

More specifically, the second portion 1132 is disposed in the cavity in a split manner, and an end of the second portion 1132 is connected to the first portion 1131, and the sensing space 111 is a space formed by surrounding the first portion 1131 and the second portion 1132.

In this embodiment, the main body 112 is in a cylindrical structure, the three main body 112 are separated by the second portions 1132 of the coil fixing portion 113, an included angle between two adjacent second portions 1132 is 120 °, preferably, the second portions 1132 are plate-shaped structures with equal wall thickness everywhere, however, in another embodiment, the second portions 1132 may also be configured such that two side wall surfaces respectively form an arc-shaped structure adapted to the corresponding first portions 1131, which can be designed by those skilled in the art according to practical situations and specific requirements.

More specifically, each sensing volume 111 is defined by a first portion 1131 and a second portion 1132 that are configured to isolate the respective rotors 121 from each other and from each other during operation of the plurality of rotors 121.

Still further, as shown in fig. 1, an embodiment of the present utility model also discloses a motor assembly 10, wherein a plurality of stator teeth 114 are formed on each of the first portion 1131 and the second portion 1132, and a slot is formed between two adjacent stator teeth 114 of the plurality of stator teeth 114. It should be noted that, in the present embodiment, the stator teeth 114 are formed on two outer walls of the second portion 1132, so that the rotors 121 in the two adjacent sensing spaces 111 are surrounded by the stator teeth 114 along the circumferential direction. Regarding the number of the stator teeth 114, those skilled in the art can design according to actual situations and specific requirements, and the present embodiment is not particularly limited thereto.

Specifically, the plurality of stator teeth 114 of the first portion 1131 are evenly distributed along the circumference of the main body 112; the plurality of stator teeth 114 of the second portion 1132 are evenly distributed circumferentially along the sensing volume 111; the stator coils are wound around the stator teeth 114 and are located within the slots. It should be noted that, in the present embodiment, the number of winding turns of the stator coil on the stator teeth 114 of each induction space 111 is the same, so that the power output by the three rotors 121 is the same, and those skilled in the art can design the present embodiment according to the actual situation and specific requirements, which is not limited in this embodiment.

More specifically, a plurality of stator teeth 114 are formed on the first portion 1131 and the second portion 1132, and a stator coil is wound around each stator tooth 114 to form a magnetic field around the circumference of the rotor 121, thereby ensuring the rotational speed of the rotor 121 to be stable.

Still further, as shown in fig. 2, the embodiment of the present utility model further discloses a motor assembly 10, the motor assembly 10 further includes a housing 140, the stator 110 and the rotor assembly 120 are located in the housing 140, through holes corresponding to portions of the plurality of rotors 121 located outside the sensing space 111 are formed in the housing 140, and portions of the plurality of rotors 121 located outside the sensing space 111 extend outside the housing 140 through the through holes.

Specifically, the housing 140 can protect the inner stator 110 and the rotor assembly 120 from other components, and the through hole formed in the housing 140 can allow the rotor 121 to extend into the housing 140 to be connected with the external intermediate transmission member 131.

The embodiment of the utility model also discloses a new energy automobile, which comprises any one of the motor assemblies 10.

Specifically, since the plurality of rotors 121 of the motor assembly 10 are respectively arranged in the independent induction spaces 111, the number of the rotors 121 with output power can be controlled, and the motor assembly 10 can adjust the output power to match different driving conditions of the new energy automobile, so that the energy utilization efficiency is improved, and the driving range of the new energy automobile is improved. In addition, the motor assembly 10 is compact in structure, and installation space in a vehicle can be saved.

It is intended that other advantages and effects of the present utility model, in addition to those described in the specific embodiments, be readily apparent to those skilled in the art from the present disclosure. While the description of the utility model will be described in connection with the preferred embodiment, it is not intended to limit the utility model to the particular form disclosed. Rather, the purpose of the utility model described in connection with the embodiments is to cover other alternatives or modifications, which may be extended by the claims based on the utility model. The foregoing description contains many specifics, other embodiments, and examples of specific details for the purpose of providing a thorough understanding of the utility model. Furthermore, some specific details are omitted from the description in order to avoid obscuring the utility model. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

It should be noted that in this specification, like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present embodiment, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", "inner", "bottom", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship in which the inventive product is conventionally put in use, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present utility model.

The terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.

In the description of the present embodiment, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present embodiment can be understood in a specific case by those of ordinary skill in the art.

While the utility model has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a further detailed description of the utility model with reference to specific embodiments, and it is not intended to limit the practice of the utility model to those descriptions. Various changes in form and detail may be made therein by those skilled in the art, including a few simple inferences or alternatives, without departing from the spirit and scope of the present utility model.

Claims (10)

1. A motor assembly comprises a stator and a rotor assembly rotatably arranged in the stator; it is characterized in that the method comprises the steps of,

the stator is provided with a plurality of mutually independent induction spaces, and a stator coil is arranged in each of the plurality of induction spaces;

the rotor assembly comprises a plurality of rotors which are arranged in parallel and are parallel to each other in axis, the rotors are arranged in one-to-one correspondence with the induction spaces, each rotor in the plurality of rotors is at least partially and rotatably arranged in the corresponding induction space, and the corresponding rotor can be independently driven to rotate by supplying power to the stator coils arranged in the induction spaces.

2. The motor assembly of claim 1, further comprising a motor shaft assembly drivingly connected to the rotor assembly, the motor shaft assembly including an intermediate transmission member and an output shaft; wherein the method comprises the steps of

One end of the intermediate transmission member is engaged with the output shaft, and the other end of the intermediate transmission member is selectively engaged with a portion of at least one of the plurality of rotors located outside the sensing space.

3. The motor assembly of claim 2, wherein the intermediate transmission member includes a mating engagement portion drivingly connected to an end of the plurality of rotors outside the sensing space and an engaged portion drivingly connected to the output shaft, the engagement portion being drivingly connected to the engaged portion.

4. A motor assembly as claimed in claim 3, wherein an end of each rotor located outside the sensing space is drivingly connected with an input shaft, the engagement portion comprises a planetary gear set including a plurality of planetary gears disposed in one-to-one correspondence with the plurality of rotors, each of the plurality of planetary gears is fixedly connected to an end of the corresponding input shaft remote from the rotor, the engaged portion comprises a sun gear fixedly connected to the output shaft, the plurality of planetary gears are circumferentially spaced apart from the sun gear on an outer peripheral side of the sun gear, and the sun gear is engaged with each of the planetary gear teeth.

5. The motor assembly of claim 4, wherein a clutch member is disposed between each of said input shafts and the corresponding one of said rotors, at least one of said plurality of input shafts being selectively engaged with the corresponding one of said rotors by said clutch member.

6. The motor assembly of claim 4, wherein the plurality of input shafts includes a main input shaft fixedly connected to the corresponding rotor and an auxiliary input shaft with a clutch member disposed therebetween, the auxiliary input shaft being selectively engaged with or disengaged from the corresponding rotor by the clutch member.

7. The motor assembly according to any one of claims 1 to 6, wherein the stator includes a main body portion and a coil fixing portion, a cavity is formed inside the main body portion, and the coil fixing portion includes a first portion and a second portion;

the first part extends along the inner wall surface of the main body part and is fixed with the inner wall surface of the main body part into a whole;

the second part is arranged in the cavity in a split mode, the end portion of the second part is connected with the first part, and the induction space is a space formed by surrounding the first part and the second part.

8. The motor assembly of claim 7, wherein a plurality of stator teeth are formed on each of the first portion and the second portion, and a notch is formed between two adjacent stator teeth of the plurality of stator teeth; wherein,

the plurality of stator teeth of the first portion are evenly distributed along the circumference of the main body portion;

the plurality of stator teeth of the second portion are uniformly distributed circumferentially along the induction space;

the stator coil is wound to the stator teeth and is located within the slot.

9. The motor assembly according to any one of claims 1 to 6, further comprising a housing in which the stator and the rotor assembly are located, through holes corresponding to portions of the plurality of rotors located outside the induction space being formed in the housing, the portions of the plurality of rotors located outside the induction space extending outside the housing through the through holes.

10. A new energy vehicle, characterized in that it comprises a motor assembly according to any one of claims 1-9.