Electric assembly and vehicle

Abstract

The utility model discloses an electric assembly and a vehicle, and relates to the technical field of vehicles, the electric assembly comprises a shell, a motor and a motor controller, and a containing cavity is formed in the shell; the motor is accommodated in the accommodating cavity; the motor controller is contained in the containing cavity, and the motor controller is located at one axial end of the motor. According to the technical scheme, the longitudinal height of the electric assembly is reduced, and longitudinal installation space is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, and particularly relates to an electric assembly and a vehicle. Background Art

[0002] As an important part of a vehicle, the structure integration degree and system reliability of the drive system structure have attracted much attention.

[0003] In the existing electric assembly structure, most of the motor controllers are installed on the outer peripheral wall of the motor, so that the overall longitudinal height of the electric assembly is relatively high, and more longitudinal space will be occupied during installation. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide an electric assembly and a vehicle, aiming to reduce the longitudinal height of the electric assembly and save the longitudinal installation space.

[0005] To achieve the above object, the electric assembly proposed by the utility model includes:

[0006] A housing, which forms a receiving cavity therein;

[0007] A motor, received in the receiving cavity; and

[0008] A motor controller, received in the receiving cavity, and the motor controller is located at one end of the axial direction of the motor.

[0009] In one embodiment, the housing includes a first housing, a connecting shell and a second housing which are detachably connected in sequence. A first receiving cavity is formed between the first housing and the connecting shell, and the motor controller is received in the first receiving cavity. A second receiving cavity is formed between the connecting shell and the second housing, and the motor is received in the second receiving cavity.

[0010] In one embodiment, an electric control cooling circuit is provided on one side of the connecting shell facing the first housing, a sealing plate is covered on the electric control cooling circuit, and the motor controller is provided between the sealing plate and the first housing.

[0011] In one embodiment, the electric control cooling circuit has a cooling inlet and a cooling outlet which are communicated with each other, and the cooling inlet and the cooling outlet are spaced apart and provided on the side part of the connecting shell;

[0012] An inlet avoidance opening and an outlet avoidance opening are provided on the first housing, and the inlet avoidance opening and the outlet avoidance opening correspond to the cooling inlet and the cooling outlet respectively.

[0013] In one embodiment, a junction box of the motor is installed on the sealing plate. A first wire groove is provided on the first housing, and a second wire groove is provided on the connecting housing. The first wire groove and the second wire groove are used for the wire harness of the junction box to pass through.

[0014] In one embodiment, an avoidance opening is formed in the first housing corresponding to the junction box, and a cover plate is detachably installed on the avoidance opening.

[0015] In one embodiment, the connecting housing is provided with a liquid inlet, a transverse liquid channel and a vertical liquid channel that are all communicated with the liquid inlet. The transverse liquid channel is provided with a rotor liquid supply hole, and the rotor liquid supply hole is communicated with the hollow rotor shaft of the motor;

[0016] The vertical liquid channel is provided with a stator liquid supply hole. The second housing is provided with a stator axial liquid channel along its axial direction. The stator axial liquid channel is communicated with the stator liquid supply hole. The stator axial liquid channel is provided with a stator liquid inlet hole. A stator coolant channel is formed between the inner wall of the second housing and the outer wall of the stator core of the motor. The stator liquid inlet hole is communicated with the stator coolant channel.

[0017] In one embodiment, there are multiple motors, and the motor controller is electrically connected to the multiple motors; the second housing is provided with multiple motor compartments, and one motor is installed in one motor compartment. The multiple motor compartments include an upper-layer motor compartment and a lower-layer motor compartment;

[0018] The liquid inlet includes an upper-layer liquid inlet and a lower-layer liquid inlet. The transverse liquid channel includes an upper-layer transverse liquid channel communicated with the upper-layer liquid inlet and a lower-layer transverse liquid channel communicated with the lower-layer liquid inlet; the vertical liquid channel includes an upper-layer vertical liquid channel and a lower-layer vertical liquid channel. The upper-layer vertical liquid channel, the lower-layer vertical liquid channel, the upper-layer transverse liquid channel and the lower-layer transverse liquid channel are communicated with each other.

[0019] In one embodiment, on the second housing, a upper-layer liquid collecting groove is provided along the axial direction at the lower end of the upper-layer motor compartment, and the upper-layer liquid collecting groove is communicated with the stator axial liquid channel of the lower-layer motor compartment.

[0020] The present utility model also provides a vehicle, including the electric assembly described above.

[0021] The technical solution of the present utility model is to provide a housing with a receiving cavity in the electric assembly, and both the motor and the motor controller are received in the receiving cavity, and the motor controller is located at one end of the motor in the axial direction. In this way, on the one hand, compared with the prior art in which the motor and the motor controller are respectively installed in their own housings, the present utility model installs the motor and the motor controller in the same housing, which is beneficial to the compactness of the structure of the electric assembly. On the other hand, compared with the prior art in which the motor controller is installed on the outer peripheral wall of the motor, the present utility model installs the motor controller at one end of the motor in the axial direction, which is beneficial to reducing the longitudinal height of the electric assembly, saving the longitudinal installation space, and thus facilitating the installation of the electric assembly. Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0023] Figure 1 Exploded structural schematic diagram of an embodiment of the housing in the electric assembly provided by the present utility model;

[0024] Figure 2 For Figure 1 Exploded structural schematic diagram of an embodiment of the first housing and the connection shell in

[0025] Figure 3 For Figure 2 Structural schematic diagram of an embodiment of the connection shell in

[0026] Figure 4 For Figure 3 Cross-sectional view of an embodiment of the connection shell;

[0027] Figure 5 For Figure 1 Structural schematic diagram of an embodiment of the second housing in

[0028] Explanation of the reference numerals in the drawings:

[0029] 100, housing;

[0030] 200, first housing; 210, inlet avoidance opening; 220, outlet avoidance opening; 230, first wire groove; 240, avoidance opening;

[0031] 300, Connection housing; 310, Electric control cooling circuit; 311, Cooling inlet; 312, Cooling outlet; 313, Sealing plate; 320, Junction box; 330, Second wire trough; 340, Liquid inlet; 341, Upper layer liquid inlet; 342, Lower layer liquid inlet; 350, Horizontal liquid channel; 351, Upper layer horizontal liquid channel; 352, Lower layer horizontal liquid channel; 353, Rotor liquid supply hole; 360, Vertical liquid channel; 361, Upper layer vertical liquid channel; 362, Lower layer vertical liquid channel; 363, Stator liquid supply hole;

[0032] 400, Second housing; 410, Stator axial liquid channel; 411, Stator liquid inlet hole; 412, Winding liquid inlet hole; 420, Motor compartment; 421, Upper layer motor compartment; 422, Lower layer motor compartment; 423, Upper layer liquid collecting tank; 430, Extension outlet;

[0033] 500, Receiving cavity; 510, First receiving cavity; 520, Second receiving cavity.

[0034] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0035] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0036] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0037] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, such descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, or scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or inability to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0038] As an important part of a vehicle, the structure integration degree and system reliability of the drive system structure have attracted much attention.

[0039] In the existing electric powertrain structure, most of the motor controllers are installed on the outer peripheral wall of the motor, so that the overall longitudinal height of the electric powertrain structure is relatively high, and more longitudinal space will be occupied during installation.

[0040] The present utility model proposes an electric powertrain.

[0041] Please refer to Figure 1 , in an embodiment of the present utility model, the electric powertrain includes a housing 100, a motor (not shown), and a motor controller (not shown). A receiving cavity 500 is formed in the housing 100. The motor is received in the receiving cavity 500, the motor controller is received in the receiving cavity 500, and the motor controller is located at one end of the motor in the axial direction.

[0042] It can be understood that the motor has a wire outlet end (not shown) and a gear end (not shown). The wire outlet end of the motor is the end where the motor extends out the wire, and the gear end of the motor is the end where the motor is provided with an output shaft and is connected to the reduction mechanism. Correspondingly, an extension opening 430 (as shown in Figure 5 ) is provided on the housing 100 for the output shaft of the motor to extend out to be in transmission connection with the reduction mechanism. The motor controller is installed in the receiving cavity 500 and is electrically connected to the motor to control the operation of the motor. Along the axial direction of the motor, the motor controller is located at one end of the motor and is arranged close to the wire outlet end of the motor.

[0043] The technical solution of the present utility model is to provide a housing 100 with a receiving cavity 500 in the electric assembly, and both the motor and the motor controller are received in the receiving cavity 500, and the motor controller is located at one end of the motor in the axial direction. In this way, on the one hand, compared with the prior art in which the motor and the motor controller are respectively installed in their own housings, the present utility model installs the motor and the motor controller in the same housing 100, which is beneficial to the compactness of the electric assembly structure. On the other hand, compared with the prior art in which the motor controller is installed on the outer peripheral wall of the motor, the present utility model locates the motor controller at one end of the motor in the axial direction, which is beneficial to reducing the longitudinal height of the electric assembly and saving the longitudinal installation space, thus facilitating the installation of the electric assembly.

[0044] Please refer to Figure 1 , in an embodiment of the present utility model, the housing 100 includes a first housing 200, a connecting shell 300 and a second housing 400 which are detachably connected in sequence. A first receiving cavity 510 is formed between the first housing 200 and the connecting shell 300, and the first receiving cavity 510 houses the motor controller. A second receiving cavity 520 is formed between the connecting shell 300 and the second housing 400, and the second receiving cavity 520 houses the motor.

[0045] Specifically, the first housing 200 is arranged near the wire outlet end of the motor, the second housing 400 is arranged near the gear end of the motor, and the connecting shell 300 is located between the first housing 200 and the second housing 400. The detachable connection of the first housing 200, the connecting shell 300 and the second housing 400 facilitates the disassembly and assembly of the motor and the motor controller. The motor controller is received in the first receiving cavity 510, and the motor is received in the second receiving cavity 520. The motor and the motor controller are separated by the connecting shell 300, which facilitates the cooling and lubrication of the motor and avoids the influence of the motor coolant on the motor controller. It can be understood that, compared with the motor, the probability of the motor controller failing is higher. In the direction from the wire outlet end to the gear end, the first housing 200, the motor controller, the connecting shell 300, the motor and the second housing 400 are arranged in sequence. In this way, when a fault occurs in the electric assembly, the first housing 200 can be removed to repair the motor controller, which facilitates the maintenance of the electric assembly. In one embodiment, the first housing 200, the connecting shell 300 and the second housing 400 are connected by bolts. Of course, in other embodiments, the first housing 200, the connecting shell 300 and the second housing 400 can also be connected by a combination of clamping and bolts.

[0046] Please refer to Figure 2 , in an embodiment of the present utility model, an electric control cooling circuit 310 is provided on the side of the connecting shell 300 facing the first housing 200. A sealing plate 313 is provided on the electric control cooling circuit 310, and a motor controller is provided between the sealing plate 313 and the first housing 200.

[0047] It is understandable that the motor controller generates heat during operation. When the temperature is too high, it may affect the normal operation of the motor controller. An electric control cooling circuit 310 is provided on the side of the connection housing 300 facing the first housing 200. The electric control cooling circuit 310 is used to cool down the motor controller. To prevent the coolant in the electric control cooling circuit 310 from leaking and affecting the normal operation of the motor controller, a sealing plate 313 is provided in the electric control cooling circuit 310. The motor controller is installed between the sealing plate 313 and the first housing 200, so that the motor controller and the electric control cooling circuit 310 directly transfer heat through the sealing plate 313, which is beneficial to improving the cooling efficiency of the motor controller and also avoids the leakage of the coolant. In one embodiment, the sealing plate 313 is sealed with the electric control cooling circuit 310 by sealant. Of course, in other embodiments, the sealing plate 313 and the electric control cooling circuit 310 can also be sealed by a gasket.

[0048] Please refer to Figure 2 , in the embodiment of the present utility model, the electric control cooling circuit 310 has a cooling inlet 311 and a cooling outlet 312 that are connected and communicated. The cooling inlet 311 and the cooling outlet 312 are spaced apart and provided on the side of the connection housing 300; an inlet avoidance port 210 and an outlet avoidance port 220 are provided on the first housing 200, and the inlet avoidance port 210 and the outlet avoidance port 220 respectively correspond to the cooling inlet 311 and the cooling outlet 312.

[0049] Specifically, for the convenience of description, one end of the electric drive assembly close to the ground is defined as the lower side, and one end of the electric drive assembly far from the ground is defined as the upper side, wherein the extending directions of the upper side and the lower side are the same as the height direction of the vehicle. The cooling inlet 311 and the cooling outlet 312 of the electric control cooling circuit 310 are provided on the side of the connection housing 300. It is understandable that the cooling inlet 311 and the cooling outlet 312 need to be connected to pipelines to enable the circulation of the coolant. By providing the cooling inlet 311 and the cooling outlet 312 on the side, the longitudinal space is not occupied, and further the longitudinal installation space is saved. An inlet avoidance port 210 corresponding to the cooling inlet 311 and an outlet avoidance port 220 corresponding to the cooling outlet 312 are provided on the first housing 200, so that after the first housing 200 and the connection housing 300 are connected, the cooling inlet 311 and the cooling outlet 312 can be connected to external pipelines.

[0050] In one embodiment, the cooling inlet 311 is located below the cooling outlet 312, that is, the coolant flows into the cooling circuit from the lower side and flows out from the upper side of the cooling circuit, so as to extend the flow duration of the coolant, enable the coolant to fully exchange heat with the motor controller, and improve the cooling effect of the motor controller.

[0051] Please refer to Figure 2In an embodiment of the utility model, a junction box 320 of a motor is mounted on the sealing plate 313, a first wire groove 230 is provided on the first shell 200, and a second wire groove 330 is provided on the connecting shell 300. The first wire groove 230 and the second wire groove 330 are used for the wiring harness of the junction box 320 to pass through.

[0052] It can be understood that the motor has a junction box 320, in which a wiring harness such as a three-phase line is arranged, and the junction box 320 is installed on the side of the sealing plate 313 away from the electric control cooling circuit 310. A first wire groove 230 is provided on the first housing 200 for the wiring harness in the junction box 320 to pass through and be electrically connected to other parts. A second wire groove 330 is provided on the connecting shell 300 for the wiring harness in the junction box 320 to pass through and be connected to the rotor assembly and stator assembly of the motor. At the same time, the motor controller is also located between the sealing plate 313 and the first housing 200, so that the junction box 320 and the motor controller are close to each other, so that the wiring harness connection between the junction box 320 and the motor controller can be easily realized. Compared with the scheme in the prior art that the motor controller and the motor are separately arranged, the utility model avoids the overly long wiring harness connection between the junction box 320 and the motor controller by arranging the motor and the motor controller in the same housing 100, which is conducive to the simplification of the structure of the electric assembly.

[0053] See also Figure 2 In the embodiment of the present invention, the first housing 200 is provided with an escape opening 240 at a position corresponding to the junction box 320 , and the escape opening 240 is detachably provided with a cover plate (not shown).

[0054] Specifically, in order to facilitate the inspection of the junction box 320, an avoidance opening 240 is provided on the first housing 200. In this way, when the electric assembly needs to be inspected, inspection tools such as a test pen are inserted through the avoidance opening 240 to inspect the junction box 320. At the same time, in order to prevent dust, moisture and other substances from affecting the junction box 320, a cover plate is detachably installed at the avoidance opening 240. In one embodiment, the cover plate is connected to the first housing 200 by bolts. Of course, in other embodiments, the cover plate is connected to the first housing 200 by snapping.

[0055] When the electric assembly needs to be repaired, the cover plate can be removed first to repair the junction box 320; if there is no problem with the junction box 320, the first housing 200 can be removed to repair the motor controller; if there is no problem with the motor controller, the connection housing 300 can be removed to repair the motor. In this way, the repair of the electric assembly is convenient.

[0056] See also Figure 3 and Figure 4, in an embodiment of the present utility model, the connection shell 300 is provided with a liquid inlet 340, a transverse liquid channel 350 and a vertical liquid channel 360 that are both communicated with the liquid inlet 340. The transverse liquid channel 350 is provided with a rotor liquid supply hole 353, and the rotor liquid supply hole 353 is communicated with the hollow rotor shaft (not shown) of the motor; the vertical liquid channel 360 is provided with a stator liquid supply hole 363. The second housing 400 is provided with a stator axial liquid channel 410 along its axial direction, and the stator axial liquid channel 410 is communicated with the stator liquid supply hole 363. The stator axial liquid channel 410 is provided with a stator liquid inlet hole 411. A stator coolant channel (not shown) is formed between the inner wall of the second housing 400 and the outer wall of the stator core (not shown) of the motor, and the stator liquid inlet hole 411 is communicated with the stator coolant channel.

[0057] Specifically, the liquid inlet 340 is provided on the side of the connection shell 300. The liquid inlet 340 is used for flowing in the coolant of the motor to cool and lubricate the motor. The side setting of the liquid inlet 340 does not occupy the longitudinal space of the electric assembly, so as to reduce the longitudinal height of the electric assembly, thereby saving the longitudinal installation space. In one embodiment, the liquid inlet 340, the cooling inlet 311 and the cooling outlet 312 of the electronic control cooling circuit 310 are located on the same side. In this way, it is beneficial to the connection of the external pipeline; at the same time, the electronic control cooling circuit 310 and the cooling circuit of the motor are arranged adjacent to each other, so that the electronic control cooling circuit 310 can cool the coolant in the cooling circuit of the motor at the same time, and the cooling circuit of the motor can cool the coolant in the electronic control cooling circuit 310, thereby improving the cooling effect of the coolant in the two cooling circuits.

[0058] Both the transverse liquid channel 350 and the vertical liquid channel 360 are communicated with the liquid inlet 340. Among them, the extending direction of the vertical liquid channel 360 is consistent with the height direction of the vehicle, and the extending direction of the transverse liquid channel 350 is perpendicular to the vertical liquid channel 360 and perpendicular to the axial direction of the motor. In the solution shown in the figure of the present utility model, the vertical liquid channel 360 is communicated with the liquid inlet 340 through the transverse liquid channel 350. In one embodiment, the vertical liquid channel 360 is communicated with the rotor liquid supply hole 353 in the transverse liquid channel 350. In this way, it is convenient for the processing and forming of the transverse liquid channel 350, the vertical liquid channel 360, the liquid inlet 340, the rotor liquid supply hole 353 and the stator liquid supply hole 363.

[0059] In the solution shown in the figures of the present utility model, the vertical liquid channel 360 is located above the horizontal liquid channel 350. It can be understood that the motor includes a rotor assembly and a stator assembly. The rotor assembly is located in the inner cavity of the stator assembly and can rotate relative to the stator assembly. Among them, the stator assembly includes a stator core and a stator winding. The stator winding reciprocally penetrates through the stator slots of the stator core along the axial direction of the motor and has portions exposed from both ends of the stator core. Thus, when cooling the stator core, the coolant flows through the liquid inlet 340, the horizontal liquid channel 350, the vertical liquid channel 360, and the stator liquid supply hole 363 into the stator axial liquid channel 410, and then through the stator liquid inlet hole 411 into the stator coolant channel between the inner wall of the second housing 400 and the outer wall of the stator core, thereby cooling the outer periphery of the stator core. The coolant spreads on the outer periphery of the stator core and, under the action of gravity, flows to the outer wall on the lower side of the stator core. Thus, setting the vertical liquid channel 360 above the horizontal liquid channel 350, that is, setting the stator liquid inlet hole 411 above the stator core, enables the coolant to flow from above the stator core to the outer wall of the stator core and then spread to the outer wall on the lower side of the stator core, which is conducive to improving the coverage rate of the coolant on the outer peripheral wall of the stator core and enhancing the cooling effect and cooling efficiency.

[0060] In one embodiment, one of the inner wall of the second housing 400 and the outer wall of the stator core is provided with convex teeth that abut against the other, so as to enclose a stator coolant channel between the inner wall of the second housing 400 and the outer wall of the stator core.

[0061] When cooling the rotor assembly, the coolant flows from the liquid inlet 340, the horizontal liquid channel 350, and the rotor liquid supply hole 353 into the hollow rotating shaft of the rotor assembly. More specifically, the rotor assembly includes a hollow rotor shaft and a rotor core sleeved outside the hollow rotor shaft. The open end of the rotor shaft is connected to the rotor liquid supply hole 353. That is, one end of the rotor shaft is a gear end for driving connection with a reduction gear, and the other end of the rotor shaft is a wire outlet end for connection with the rotor liquid supply hole 353. The rotor shaft is provided with a first liquid throwing port along its radial direction, the rotor core is provided with a through second liquid throwing port along its radial direction, and the second liquid throwing port is connected to the first liquid throwing port. The rotor core is provided with a through rotor liquid discharge port along its axial direction, and the rotor liquid discharge port is connected to the second liquid throwing port. When cooling the rotor assembly, the coolant flows from the liquid inlet 340 into the horizontal liquid channel 350, flows through the rotor liquid supply hole 353 into the hollow rotor shaft, and under the action of the rotational centrifugal force of the rotor shaft, the coolant enters the second liquid throwing port through the first liquid throwing port to cool the rotor assembly, and most of the coolant flows out through the rotor liquid discharge port; a small part of the coolant flows out through the second liquid throwing port and out through the gap between the rotor core and the stator core; finally, under the action of gravity, the coolant flows downward and converges at the bottom of the housing 100.

[0062] In one embodiment, to improve the cooling efficiency of the rotor assembly, a plurality of first liquid throwing ports are circumferentially spaced along the hollow rotating shaft. Correspondingly, a plurality of second liquid throwing ports corresponding to the first liquid throwing ports one by one are provided on the rotor core. In one embodiment, to further improve the cooling efficiency of the rotor assembly, a plurality of first liquid throwing ports are axially spaced along the hollow shaft. Correspondingly, a plurality of second liquid throwing ports corresponding to the first liquid throwing ports one by one are provided on the rotor core. In this way, the cooling effect of the rotor assembly is improved.

[0063] In an embodiment of the present utility model, the stator winding has portions extending from both ends of the stator core. To cool this portion of the stator winding, the motor further includes two winding coolant pipes. The two winding coolant pipes are respectively located at both ends of the stator core and are connected to the stator axial liquid passage 410. In one embodiment, two winding liquid inlet holes 412 (as Figure 5 shown) are opened on the stator axial liquid passage 410, and one winding liquid inlet hole 412 is connected to one winding coolant pipe. Winding spray holes are opened on one side of the winding coolant pipe facing the stator winding.

[0064] Please refer to Figure 4 and Figure 5 , in an embodiment of the present utility model, there are multiple motors, and the motor controller is electrically connected to the multiple motors; the second housing 400 is provided with multiple motor compartments 420, one motor is installed in one motor compartment 420, and the multiple motor compartments 420 include an upper motor compartment 421 and a lower motor compartment 422; the liquid inlet 340 includes an upper liquid inlet 341 and a lower liquid inlet 342, and the transverse liquid passage 350 includes an upper transverse liquid passage 351 communicating with the upper liquid inlet 341 and a lower transverse liquid passage 352 communicating with the lower liquid inlet 342; the vertical liquid passage 360 includes an upper vertical liquid passage 361 and a lower vertical liquid passage 362, and the upper vertical liquid passage 361, the lower vertical liquid passage 362, the upper transverse liquid passage 351 and the lower transverse liquid passage 352 are connected and communicated.

[0065] Specifically, the second housing 400 is provided with multiple motor compartments 420, and each motor compartment 420 houses one motor. In this way, multiple motors are all installed in one housing 100, which is beneficial to the structural compactness of the electric assembly and beneficial to the integration of the electric assembly. In one embodiment, multiple motors and one motor controller are provided in the electric assembly, and the motor controller is electrically connected to the multiple motors respectively to control the operation of the multiple motors. In this way, the integration of the electric assembly is further improved, which is beneficial to the structural simplification of the electric assembly.

[0066] The upper liquid inlet 341 is used to supply coolant to the upper motor, and the lower liquid inlet 342 is used to supply coolant to the lower motor. The upper horizontal liquid channel 351 is used to supply coolant to the upper rotor assembly, and the lower horizontal liquid channel 352 is used to supply coolant to the lower rotor assembly. The upper vertical liquid channel 361 is used to supply coolant to the upper stator assembly, and the lower vertical liquid channel 362 is used to supply coolant to the lower stator assembly. The upper vertical liquid channel 361, the lower vertical liquid channel 362, the upper horizontal liquid channel 351 and the lower horizontal liquid channel 352 are interconnected, so that the coolant circulates in the upper motor compartment 421 and the lower motor compartment 422.

[0067] The motor structure may include 2n motors. The 2n motors may be arranged in two rows with n in each row, or the 2n motors may also be arranged in other ways such as one row with 2n in it. Specifically, 2n may be an even number such as 2, 4, 6, 8, etc. Alternatively, the motor structure may include 2n + 1 motors. The 2n + 1 motors may be arranged in various ways such as triangular or linear. Specifically, 2n + 1 may be an odd number such as 3, 5, 7, 9, etc. The specific number and arrangement of the motors can be set according to the actual situation and are not limited here.

[0068] Please refer to Figure 5 , in the embodiment of the present utility model, on the second housing 400, at the lower end of the upper motor compartment 421, an upper liquid collecting groove 423 is provided along its axial direction, and the upper liquid collecting groove 423 is communicated with the stator axial liquid channel 410 of the lower motor compartment 422.

[0069] Specifically, a liquid collecting groove is provided at the lower end of the second housing 400, and the liquid collecting groove is used to collect the coolant that has cooled and gathered at the bottom. More specifically, an upper liquid collecting groove 423 is provided at the lower end of the upper motor compartment 421, and a lower liquid collecting groove is provided at the lower end of the lower motor compartment 422. Both the upper liquid collecting groove 423 and the lower liquid collecting groove extend along the axial direction of the motor. Among them, the upper liquid collecting groove 423 is communicated with the stator axial liquid channel 410 of the lower motor compartment 422, so that the coolant collected in the upper motor compartment 421 can participate in the cooling cycle of the lower motor compartment 422. That is to say, the coolant source of the lower motor compartment 422 includes two places, one is the coolant flowing in from the lower liquid inlet 342, and the other is the coolant collected after the upper motor is cooled. In this way, the multiple motor compartments 420 are relatively independent and interconnected.

[0070] The present utility model also proposes a vehicle, which includes an electric assembly. The specific structure of the electric assembly refers to the above embodiments. Since this vehicle adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, and will not be elaborated here one by one.

[0071] The above are only exemplary embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims

1. An electric assembly, characterized in that, Comprising: A housing, within which a receiving cavity is formed; A motor, received in the receiving cavity; And A motor controller, received in the receiving cavity and located at one axial end of the motor.

2. The electric assembly according to claim 1, wherein The housing includes a first housing, a connecting shell, and a second housing that are detachably connected in sequence. A first receiving cavity is formed between the first housing and the connecting shell, and the motor controller is received in the first receiving cavity. A second receiving cavity is formed between the connecting shell and the second housing, and the motor is received in the second receiving cavity.

3. The electric assembly according to claim 2, characterized in that, On one side of the connecting shell facing the first housing, an electric control cooling circuit is provided, and a sealing plate is provided on the electric control cooling circuit. The motor controller is provided between the sealing plate and the first housing.

4. The electric assembly according to claim 3, wherein The electric control cooling circuit has a cooling inlet and a cooling outlet that are connected and communicate with each other. The cooling inlet and the cooling outlet are spaced apart and provided on the side of the connecting shell; An inlet avoidance opening and an outlet avoidance opening are provided on the first housing, and the inlet avoidance opening and the outlet avoidance opening respectively correspond to the cooling inlet and the cooling outlet.

5. The electric assembly according to claim 3, wherein A junction box of the motor is installed on the sealing plate. A first wire groove is provided on the first housing, and a second wire groove is provided on the connecting shell. The first wire groove and the second wire groove are used for the wire harness of the junction box to pass through.

6. The electric assembly according to claim 5, characterized in that The first housing is provided with an avoidance opening corresponding to the junction box, and a cover plate is detachably installed on the avoidance opening.

7. The electric assembly according to claim 2, wherein, The connecting shell is provided with a liquid inlet, a transverse liquid channel, and a vertical liquid channel that are all connected to the liquid inlet. The transverse liquid channel is provided with a rotor liquid supply hole, and the rotor liquid supply hole is connected to the hollow rotor shaft of the motor; The vertical liquid channel is provided with a stator liquid supply hole. The second housing is provided with a stator axial liquid channel along its axial direction. The stator axial liquid channel is connected to the stator liquid supply hole. The stator axial liquid channel is provided with a stator liquid inlet hole. A stator cooling liquid channel is formed between the inner wall of the second housing and the outer wall of the stator core of the motor, and the stator liquid inlet hole is connected to the stator cooling liquid channel.

8. The electric assembly according to claim 7, wherein, There are multiple motors, and the motor controller is electrically connected to the multiple motors; the second housing is provided with multiple motor compartments, and one motor is installed in one motor compartment. The multiple motor compartments include an upper-layer motor compartment and a lower-layer motor compartment; The liquid inlet includes an upper-layer liquid inlet and a lower-layer liquid inlet. The transverse liquid channel includes an upper-layer transverse liquid channel connected to the upper-layer liquid inlet and a lower-layer transverse liquid channel connected to the lower-layer liquid inlet; the vertical liquid channel includes an upper-layer vertical liquid channel and a lower-layer vertical liquid channel. The upper-layer vertical liquid channel, the lower-layer vertical liquid channel, the upper-layer transverse liquid channel, and the lower-layer transverse liquid channel are connected and communicate with each other.

9. The electric assembly according to claim 8, wherein On the second housing, a upper-layer liquid collecting groove is provided along the axial direction at the lower end of the upper-layer motor compartment, and the upper-layer liquid collecting groove is connected to the stator axial liquid channel of the lower-layer motor compartment.

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

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