Electric driving shell, electric driving assembly and vehicle

Abstract

The utility model provides an electric driving shell, an electric driving assembly and a vehicle, the electric driving shell comprises a box body and a motor shell, and the box body comprises a first part and a second part which are connected with each other; the motor shell is located on the outer side of the box body and connected with the second part, and the projection of the motor shell on the second part covers the projection of the controller on the second part; the first part and the second part are respectively provided with a first flow channel and a second flow channel, a first port of the first flow channel is covered by the motor shell, a second port of the first flow channel avoids the motor shell, the first flow channel is communicated with two sides of the first part and the second flow channel, and the second flow channel is communicated with two sides of the second part. Therefore, the second flow channel can be communicated with the first flow channel and the second accommodating space which are blocked by the motor shell, and the first flow channel can be communicated with the second flow channel and the first accommodating space, so that the first accommodating space is communicated with the second accommodating space, the structure of the flow channel is simplified, and the heat dissipation efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to an electric drive shell, an electric drive assembly and a vehicle. BACKGROUND

[0002] With the rapid development of economy and the continuous enhancement of people's environmental protection awareness, electric vehicles using lithium batteries are rapidly popularizing. The core power part of the electric vehicle is called a three-electric system, which includes an electric drive (i.e. a driving motor and a power supply) and a motor controller for controlling the electric drive and other electric devices.

[0003] During use of the vehicle, the power supply and the motor controller generate a large amount of heat. Therefore, a water channel for heat dissipation of the power supply and the controller needs to be arranged. However, the space for arranging the water channel is limited, which leads to difficulty in arranging the water channel, and the structure of the water channel for heat dissipation of the power supply and the controller is complex and the heat dissipation efficiency is poor. CONTENT OF THE UTILITY MODEL

[0004] The main purpose of the present application is to provide an electric drive shell, an electric drive assembly and a vehicle, which aims to solve the above technical problems existing in the prior art.

[0005] To solve the above problems, the present application provides an electric drive shell, an electric drive assembly and a vehicle. The electric drive shell comprises a box body and a motor shell. The box body comprises a first part and a second part connected to each other. The first part forms a first containing space for containing a power supply. The second part forms a second containing space for containing a controller. The motor shell is located on the outside of the box. The motor shell is connected to the second part. The projection of the motor shell on the second part covers the projection of the controller on the second part. The first part is provided with a first flow channel. The first flow channel is connected to the first containing space and the outside of the first containing space. The second part is provided with a second flow channel. The second flow channel is arranged such that a first port is covered by the motor shell, and a second port of the second flow channel is formed to avoid the motor shell. The first port is connected to the second containing space and the outside of the second containing space. The second port is connected to the first port and is located between the first port and the first flow channel. The electric drive shell further comprises a connecting cover plate located on the outside of the box. The connecting cover plate covers one end of the first flow channel away from the first containing space and one end of the second flow channel away from the second port. The connecting cover plate is connected to the box body to form a communication flow channel connected to the first flow channel and the second flow channel.

[0006] In some embodiments, the second flow channel comprises a first columnar flow channel and a second columnar flow channel. The second columnar flow channel is connected to the first columnar flow channel and the second containing space. The first columnar flow channel is arranged to extend in a first direction. One end of the first columnar flow channel in the first direction is provided with a third port. The third port is connected to the inside and outside of the first columnar flow channel.

[0007] In some embodiments, the first columnar flow channel is circular in cross section and is arranged to extend in the first direction to form a cylindrical shape, and one end of the first columnar flow channel is provided with a liquid seal plug in interference fit with the third port.

[0008] In some embodiments, the motor-driven housing includes a first cooling groove arranged in the second accommodating space and corresponding to the controller, the first cooling groove is in communication with the second columnar flow channel, the opening of the first cooling groove faces the controller, and the side wall of the first cooling groove is arranged vertically,

[0009] In some embodiments, the second columnar flow channel is arranged to extend in the vertical direction, the first port and the second port are respectively located at two ends of the second columnar flow channel, the second port penetrates the wall of the first columnar flow channel away from the communication flow channel, and the first port communicates the groove of the first cooling groove and the second flow channel.

[0010] In some embodiments, the motor-driven housing includes a water outlet flow channel, the water outlet flow channel includes a first water outlet flow channel and a second water outlet flow channel, the first water outlet flow channel is arranged to extend in the second direction, one end of the first water outlet flow channel is in communication with one end of the first cooling groove away from the first port, the other end of the first water outlet flow channel is in communication with the outside of the first part, the second water outlet flow channel is arranged to extend in the vertical direction, one end of the second water outlet flow channel is in communication with one end of the first water outlet flow channel away from the first cooling groove, the motor housing is provided with a third water outlet flow channel extending in the first direction, the third water outlet flow channel extends in the first direction to the end of the motor housing, and the other end of the second water outlet flow channel is in communication with the third water outlet flow channel.

[0011] In some embodiments, the first flow channel includes a second cooling groove, the opening of the second cooling groove faces away from the first accommodating space, and the groove wall of the second cooling groove is arranged vertically.

[0012] To solve the above problems, the application provides a motor-driven assembly, which includes the above-mentioned motor-driven housing, the motor-driven housing is provided with a first part and a second part connected to each other, the motor-driven assembly includes a power supply and a power supply cooling flow channel, one side of the power supply cooling flow channel is fixed to the first part, the other side of the power supply cooling flow channel is arranged to extend in the vertical direction away from the first part, the power supply is provided with a heat dissipation space accommodating part of the power supply cooling flow channel, and part of the power supply cooling flow channel is located in the heat dissipation space.

[0013] In some embodiments, the motor-driven assembly further includes a controller, the controller includes a sealing surface and a heat dissipation pin, the second part is provided with a first cooling groove, the sealing surface is in sealing connection with the opening of the first cooling groove, and the heat dissipation pin is arranged on one side of the sealing surface close to the first cooling groove and located in the first cooling groove.

[0014] To solve the above problems, the vehicle provided in the application comprises the electric drive assembly described above, and the electric drive assembly comprises the electric drive housing described above.

[0015] Compared with the prior art, the electric drive housing provided in the application comprises a box body and a motor shell. The box body comprises a first part and a second part connected to each other. The first part is formed with a first containing space for containing a power supply, and the second part is formed with a second containing space for containing a controller. The motor shell is located on the outer side of the box body, and the motor shell is connected to the second part. The projection of the motor shell on the second part covers the projection of the controller on the second part. The first part is provided with a first flow channel that is in communication with the first containing space and the outside of the first containing space. The second part is provided with a second flow channel. The first port of the second flow channel is covered by the motor shell, and the second port of the second flow channel is formed to avoid the motor shell. The first port is in communication with the second containing space and the outside of the second containing space. The second port is in communication with the first port and is located between the first port and the first flow channel. The electric drive housing further comprises a connecting cover plate located on the outer side of the box body. The connecting cover plate covers one end of the first flow channel away from the first containing space and one end of the second flow channel away from the second port. The connecting cover plate is connected to the box body to form a communication flow channel that is in communication with the first flow channel and the second flow channel. Through the above-mentioned embodiments, the second flow channel can be in communication with the first flow channel and the second containing space blocked by the motor shell. The first flow channel can be in communication with the second flow channel and the first containing space, so as to make the first flow channel and the second flow channel in communication with the first containing space and the second containing space. The structure of the water channel is simplified, and the heat dissipation efficiency can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings described below only constitute some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 is a structural schematic diagram of an embodiment of the electric drive assembly provided in the application;

[0018] Figure 2 is Figure 1 is an exploded schematic diagram of the electric drive assembly shown in FIG. 1;

[0019] Figure 3 is Figure 1 is a sectional view of the electric drive assembly shown in FIG. 1 along the A-A direction;

[0020] Figure 4 is Figure 2 is a structural schematic diagram of an embodiment of the controller shown in FIG. 1;

[0021] Figure 5 is Figure 3 an enlarged structural schematic view at the dashed circle frame shown in FIG. 1;

[0022] Figure 6 is Figure 2 a structural schematic view of an embodiment of the box body;

[0023] Figure 7 is Figure 3 an enlarged structural schematic view at the dashed circle frame shown in FIG. 2;

[0024] Figure 8 is a structural schematic view of an embodiment of the electric drive shell provided by the present application.

[0025] Reference signs: electric drive assembly 1; electric drive shell 10; box body 100; first part 110; second part 120; first containing space 111; second containing space 121; first flow channel 130; connecting cover plate 131; second cooling groove 132; second flow channel 140; first column-shaped flow channel 141; third port 1411; second column-shaped flow channel 142; first port 1421; second port 1422; communicating flow channel 143; first cooling groove 144; water outlet flow channel 145; first water outlet flow channel 1451; second water outlet flow channel 1452; motor shell 20; third water outlet flow channel 210; power supply 30; power supply cooling flow channel 40; controller 50; sealing surface 510; heat dissipation pin 520; first direction X; second direction Y; vertical direction Z. DETAILED DESCRIPTION

[0026] The embodiments of the technical solutions of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used herein are only for the purpose of describing specific embodiments of the present application, and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion.

[0028] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features.

[0029] Reference to“an embodiment” herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase“in an embodiment” in various places in the specification are not necessarily referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. As will be apparent to those of ordinary skill in the art, embodiments described herein can be combined with other embodiments in accordance with the application.

[0030] In the description of the embodiments of the application, the term“and / or” only means an association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character“ / ” herein generally means that the front and rear associated objects have an“or” relationship.

[0031] In the description of the embodiments of the application, the term“a plurality of” means more than two (including two), and similarly, “a plurality of groups” means more than two groups (including two groups), and “a plurality of pieces” means more than two pieces (including two pieces).

[0032] In the description of the embodiments of the application, the technical terms“center”,“longitudinal”,“transverse”,“length”,“width”,“thickness”,“upper”,“lower”,“front”,“rear”,“left”,“right”,“vertical”,“horizontal”,“top”,“bottom”,“inner”,“outer”,“clockwise”,“counterclockwise”,“axial”,“radial”,“circumferential” and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the application.

[0033] In the description of the embodiments of the application, unless otherwise explicitly specified and limited, the technical terms“mounting”,“connection”,“connection”,“fixing” and the like should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the embodiments of the application can be understood according to the specific circumstances.

[0034] With the rapid development of economy and the continuous enhancement of people's environmental protection consciousness, electric vehicles using lithium batteries are rapidly popularizing. The core power part of the electric vehicle is called three-electric system, which includes electric drive (i.e. driving motor and power supply) and motor controller used to control the electric drive and other electric devices. During the use of the vehicle, the power supply and the motor controller will generate a large amount of heat. Therefore, water channels need to be set for heat dissipation of the power supply and the controller. However, the space for setting the water channels is limited, which leads to the difficulty in setting the water channels, and the structure of the water channels for heat dissipation of the power supply and the controller is complex and the heat dissipation efficiency is poor.

[0035] To solve the above problems, the present application provides a vehicle, which comprises the following electric drive assembly.

[0036] Referring to Figures 1 to 4 , Figure 1 is a structural schematic diagram of an embodiment of the electric drive assembly provided by the present application. Figure 2 is Figure 1 is an exploded schematic diagram of the electric drive assembly shown in Figure 3 is Figure 1 is a sectional view of the electric drive assembly shown in Figure 4 is Figure 2 is a structural schematic diagram of an embodiment of the controller.

[0037] To solve the above problems, the application provides an electric drive assembly 1, which comprises an electric drive shell 10 described below. The electric drive shell 10 is provided with a first part 110 and a second part 120 connected to each other, the electric drive assembly 1 comprises a power supply 30 and a power supply cooling flow channel 40, one side of the power supply cooling flow channel 40 is fixed to the first part 110, the other side of the power supply cooling flow channel 40 is arranged to extend away from the first part 110 in the vertical direction Z, and the power supply 30 is provided with a heat dissipation space accommodating part of the power supply cooling flow channel 40. The electric drive assembly 1 comprises the power supply 30 and the power supply cooling flow channel 40, and the power supply 30 can provide the electric drive assembly 1 with the required power. The electric drive shell 10 comprises a box body 100, the box body 100 comprises the first part 110 and the second part 120 connected to each other, and the first part 110 is provided with a first accommodating space 111 accommodating the power supply 30. The power supply 30 is located in the first accommodating space 111 and is fixed to the bottom surface of the first part 110, the power supply cooling flow channel 40 can be located between the power supply 30 and the first part 110, the power supply cooling flow channel 40 is fixed to the same surface of the first accommodating space 111 as the power supply 30, and the end of the power supply cooling flow channel 40 away from the first part 110 can be inserted into the power supply 30. The power supply 30 can be provided with a heat dissipation space accommodating part of the power supply cooling flow channel 40, and the end of the power supply cooling flow channel 40 away from the first part 110 can be located in the heat dissipation space, which can increase the contact area of the power supply 30 and the power supply cooling flow channel 40, thereby improving the heat dissipation efficiency of the power supply 30. The power supply cooling flow channel 40 can comprise a reinforcing plate and a cooling flow channel, the reinforcing plate is arranged on the side of the cooling flow channel close to the first part 110, the reinforcing plate is fixed to the bottom surface of the first part 110, and the reinforcing plate is provided with reinforcing ribs, and the cooling flow channel is fixedly connected to the side of the reinforcing plate away from the first part 110, thereby improving the stability of the power supply cooling flow channel 40 fixed to the first part 110. The cooling flow channel is inserted into the heat dissipation space of the power supply 30, and the projection of the cooling flow channel on the first part 110 is U-shaped, that is, the cooling flow channel extends in the second direction Y from the cooling flow channel inlet, for the convenience of understanding, the second direction Y can be perpendicular to the direction in which the first part 110 and the second part 120 are connected, and after extending in the second direction Y for a distance, it is turned and extended in the opposite direction, thereby forming a U-shaped cooling flow channel, which increases the heat exchange area of the power supply 30 and the power supply cooling flow channel 40, thereby improving the heat dissipation efficiency. The first part 110 is provided with a box body inlet, the box body inlet pipe penetrates through the first accommodating space 111 and the side of the first part 110 away from the power supply 30, and the box body inlet is in communication with the cooling flow channel inlet, so that the cooling liquid can be introduced into the power supply cooling flow channel 40.

[0038] In some embodiments, the electric drive assembly 1 further comprises a controller 50, the controller 50 comprises a sealing surface 510 and a plurality of heat dissipation pins 520, the controller 50 is arranged on the second part 120, the second part 120 is provided with a first cooling groove 144, the sealing surface 510 and the opening of the first cooling groove 144 are in sealing connection, the plurality of heat dissipation pins 520 are arranged on the side of the sealing surface 510 close to the first cooling groove 144 and partially located in the first cooling groove 144. The second part 120 is provided with the first cooling groove 144, the first cooling groove 144 can be fixed to the bottom surface of the second part 120, the controller 50 can be arranged on the side of the first cooling groove 144 away from the second part 120, and the side of the controller 50 close to the first cooling groove 144 is provided with the sealing surface 510 and the plurality of heat dissipation pins 520, the plurality of heat dissipation pins 520 arranged on the side of the sealing surface 510 close to the first cooling groove 144 protrude from the sealing surface 510. The sealing surface 510 and the first cooling groove 144 are in close connection to make the plurality of heat dissipation pins 520 located in the first cooling groove 144, so that the sealing surface 510 and the plurality of heat dissipation pins 520 of the controller 50 can directly contact with the cooling liquid, the first cooling groove 144 for dissipating heat of the controller 50 is simple in structure, high in heat dissipation efficiency, and the plurality of heat dissipation pins 520 can increase the contact area of the controller 50 with the cooling liquid, thereby improving the heat dissipation efficiency of the controller.

[0039] Referring to Figure 5 , Figure 5 is Figure 3 the enlarged structural schematic view of the dashed circle frame shown in FIG. 1.

[0040] To solve the above problems, the application provides an electric drive shell 10, which comprises a box body 100 and a motor shell 20. The box body 100 comprises a first part 110 and a second part 120 connected with each other. The first part 110 is formed with a first containing space 111 for containing a power supply 30. The second part 120 is formed with a second containing space 121 for containing a controller 50. The motor shell 20 is located on the outer side of the box body. The motor shell 20 is connected with the second part 120. The projection of the motor shell 20 on the second part 120 covers the projection of the controller 50 on the second part 120. The first part 110 is provided with a first flow channel 130. The first flow channel 130 is in communication with the first containing space 111 and the outer side of the first containing space 111. The second part 120 is provided with a second flow channel 140. The second flow channel 140 is arranged in such a manner that a first port 1421 thereof is covered by the motor shell 20, and a second port 1422 thereof is formed to avoid the motor shell 20. The first port 1421 is in communication with the second containing space 121 and the outer side of the second containing space 121. The second port 1422 is in communication with the first port 1421 and is located between the first port 1421 and the first flow channel 130. The electric drive shell 10 further comprises a connecting cover plate 131 located on the outer side of the box body. The connecting cover plate 131 covers one end of the first flow channel 130 away from the first containing space 111 and one end of the second flow channel 140 away from the second port 1422. The connecting cover plate 131 is connected with the box body 100 to form a communication flow channel 143 in communication with the first flow channel 130 and the second flow channel 140.

[0041] The box body 100 is used for mounting electrical components required by the electric drive assembly 1. The box body 100 comprises the first part 110 and the second part 120 connected with each other. The first part 110 and the second part 120 can be separated by a partition plate and form the first containing space 111 and the second containing space 121. The first containing space 111 is used for mounting the power supply 30. The second containing space 121 is used for mounting the controller 50. The bottom wall of the second part 120 can be higher than the bottom wall of the first part 110, that is, the bottom wall of the first part 110 protrudes from the bottom wall of the second part 120. Thus, the volume of the second part 120 is reduced under the condition that the components in the second part 120 are mounted, so that the volume and weight of the box body are smaller.

[0042] In addition, the electric drive assembly 1 can further comprise a PCB board connected with the controller 50, the PCB board is fixed to the side of the controller 50 away from the first cooling groove 144, and the size of the PCB board in the second direction Y matches the size of the second part 120 in the second direction Y, so as to better fix the PCB board. Since the PCB is thus arranged, in order to ensure the electrical connection between the controller 50 and the PCB board, the projection of the PCB board on the second part 120 covers the projection of the controller 50 on the second part 120, and the controller 50 is spaced apart from the partition in the second accommodating space 121.

[0043] The motor housing 20 can be located on the side of the second part 120 away from the second accommodating space 121, so as to make full use of the smaller size of the second part 120, thereby improving the space utilization of the electric drive housing 10. The projection of the motor housing 20 on the second part 120 is larger than the projection of the controller 50 on the second part 120, that is, in the case that the controller 50 is spaced apart from the partition in the second direction Y, the projection area of the motor housing 20 on the second part 120 is larger than the projection area of the controller 50 on the second part 120. The water channel for dissipating heat of the controller 50 and the water channel for dissipating heat of the power supply 30 are connected, so as to accelerate the circulation speed of the cooling liquid, and the motor housing 20 is located on the side of the second part 120 away from the controller 50, and the space occupied by the motor housing 20 is larger, so as to hinder the connection of the two water channels for dissipating heat of the power supply 30 and the controller 50.

[0044] To solve this problem, the first flow channel 130 can be arranged on the side of the first part 110 away from the power supply 30, and the second flow channel 140 can be arranged on the side of the second part 120 away from the controller 50. The first flow channel 130 can be provided with a first flow channel 130 water inlet, which communicates the first flow channel 130 and the first containing space 111, that is, the first flow channel 130 water inlet penetrates the bottom wall of the first part 110, and the power supply cooling flow channel 40 can be provided with a power supply 30 flow channel outlet, which is connected with the first flow channel 130 water inlet in correspondence, so as to communicate the power supply cooling flow channel 40 and the first flow channel 130. The second part 120 is provided with the second flow channel 140, which is located on the side of the second part 120 away from the controller 50, and the second flow channel 140 is provided with a first port 1421 and a second port 1422. The first port 1421 penetrates the two opposite sides of the second part 120, so as to communicate the second containing space 121 and the outside of the second containing space 121, and the second port 1422 is arranged between the first port 1421 and the second flow channel 140. The second containing space 121 is provided with a first cooling groove 144, and the first port 1421 also penetrates the bottom wall of the first cooling groove 144, so as to communicate the second flow channel 140 and the first cooling groove 144. However, the projection of the first port 1421 on the second part 120 is covered by the motor shell 20, and the second port 1422 also forms an avoidance with the motor shell 20. It can be understood that the projections of the first port 1421 and the second port 1422 on the second part 120 are located on the projection of the motor shell 20 on the second part 120, so that the first flow channel 130 cannot directly extend to the direction of the second port 1422 to be connected with the second port 1422, and is blocked by the motor shell 20. Therefore, the second flow channel 140 is arranged on the side of the first flow channel 130 close to the motor shell 20, so as to communicate the first flow channel 130 and the first cooling groove 144 through the second flow channel 140. The first flow channel 130 further includes a connecting cover plate 131, which covers the side of the first flow channel 130 away from the first containing space 111, so that the first flow channel 130 forms a closed space to circulate the cooling liquid. The connecting cover plate 131 also covers the end of the second flow channel 140 away from the second port 1422, so that the end of the second flow channel 140 away from the second port 1422 is partially located in the first flow channel 130, and the part is provided with a communication flow channel 143 to communicate the first flow channel 130 and the second flow channel 140. The second flow channel 140 can be partially located in the first flow channel 130, so that only a small opening needs to be opened between the first flow channel 130 and the second flow channel 140 after they are integrally casted, so as to communicate them. Of course, the second flow channel 140 can also not be located in the first flow channel 130, and a larger opening in the second direction Y can be opened between the first flow channel 130 and the second flow channel 140 to communicate them.

[0045] The first flow channel 130 is located on the side of the first part 110 away from the accommodating space. Since the motor housing 20 is cylindrical, there is a gap between the outside of the motor housing 20 and the first part 110 and the second part 120. The second flow channel 140 can then extend towards the motor housing 20 and form an avoidance with the motor housing 20, so that the first flow channel 130 is partially located on the side of the second part 120 away from the controller 50, but the first flow channel 130 and the first port 1421 still have a first distance due to the blockage of the motor housing 20. The bottom wall of the second part 120 is higher than the bottom wall of the first part 110, so that the part of the first flow channel 130 located on the second part 120 has a larger internal space than the part located on the first part 110. Connecting the second flow channel 140 and the first flow channel 130 located on the second part 120 can make the size of the communication flow channel 143 larger, so that the flow of the cooling liquid is larger, and the cooling effect is better.

[0046] Through the above embodiment, the second flow channel 140 can communicate the first flow channel 130 blocked by the motor housing 20 and the second accommodating space 121, and the first flow channel 130 can communicate the second flow channel 140 and the first accommodating space 111, so that the first flow channel 130 and the second flow channel 140 jointly communicate the first accommodating space 111 and the second accommodating space 121, which simplifies the structure of the water channel and improves the heat dissipation efficiency.

[0047] Referring to Figure 6 , Figure 6 is Figure 2 a structural schematic view of an embodiment of the box body.

[0048] In some embodiments, the second flow channel 140 includes a first columnar flow channel 141 and a second columnar flow channel 142, the second columnar flow channel 142 being in communication with the first columnar flow channel 141 and the second containing space 121, the first columnar flow channel 141 being arranged to extend in the first direction X, and the first columnar flow channel 141 being provided with a third port 1411 at one end thereof in the first direction X, the third port 1411 being in communication with the inside and outside of the first columnar flow channel 141. The first direction X can be understood as a direction perpendicular to the connection of the first part 110 and the second part 120. The first columnar flow channel 141 is arranged to extend in the first direction X, and the end of the first columnar flow channel 141 in the first direction X is provided with the third port 1411, and the third port 1411 is in communication with the inside and outside of the first columnar flow channel 141, so that the first columnar flow channel 141 can be integrally cast during casting molding, and only a latch protruding in the first direction X relative to the mold itself needs to be arranged on the mold, and the mold is poured, and the first columnar flow channel 141 can be formed. Since the first columnar flow channel 141 is arranged along the first direction X. Therefore, the second columnar flow channel 142 needs to be arranged to connect the first cooling groove 144 and the first columnar flow channel 141, and the second columnar flow channel 142 is provided with a first port 1421 and a second port 1422 at two ends thereof, respectively, and the second port 1422 penetrates the wall of the first columnar flow channel 141 away from the first flow channel 130 to communicate the first columnar flow channel 141 and the second columnar flow channel 142. Of course, the first columnar flow channel 141 can also be arranged to extend along other directions, and the present scheme extends along the first direction X in order to avoid the motor housing 20. If there are other components or structures blocking in the first direction X, the first columnar flow channel 141 can also be arranged to extend along other directions to form an avoidance.

[0049] In some embodiments, the first columnar flow channel 141 is circular in cross section and extends in the first direction X to form a cylindrical shape. The first columnar flow channel 141 is provided with a liquid seal plug at one end near the third port 1411, which is in interference fit with the third port 1411. The cross section of the channel inside the first columnar flow channel 141 allowing the flow of cooling liquid can be circular. The first columnar flow channel 141 with a circular cross section extends in the first direction X to form a cylindrical flow channel, so that the first columnar flow channel 141 has a larger internal space for the same volume, thereby allowing more cooling liquid to be contained for the same material and space occupancy, and thus improving the cooling efficiency. The first columnar flow channel 141 is also provided with a liquid seal plug, which can be a "bowl-shaped plug". The liquid seal plug can be in interference fit with the third port 1411 with a circular cross section to block the third port 1411. If the third port 1411 has other shapes, the bowl-shaped plug cannot directly block the third port 1411, and a cover plate must be used to block the third port 1411 by welding. Therefore, the third port 1411 is circular, which can also reduce the manufacturing process flow of the electric drive housing 10, thereby improving the manufacturing efficiency and reducing the cost.

[0050] In some embodiments, the electric drive housing 10 includes a first cooling groove 144 located in the second accommodating space 121 corresponding to the position of the controller 50. The first cooling groove 144 is in communication with the second columnar flow channel 142, the groove opening of the first cooling groove 144 faces the controller 50, and the side wall of the first cooling groove 144 is vertically arranged. The first cooling groove 144 is located in the second accommodating space 121, and the first cooling groove 144 can be fixed to the side of the second part 120 away from the motor housing 20, and the position of the first cooling groove 144 corresponds to the position of the controller 50. The groove opening of the first cooling groove 144 faces the controller 50, so that the first cooling groove 144 can directly contact the controller 50 to dissipate heat for the controller 50, without the need to set an additional cover plate to close the first cooling groove 144 and then set the controller 50 on the cover plate to dissipate heat for the controller 50. Directly connecting the first cooling groove 144 with the controller 50 can improve the heat dissipation efficiency and also improve the production efficiency of the electric drive housing 10. In addition, the side wall of the first cooling groove 144 can be understood as the groove wall of the periphery of the first cooling groove 144, and the side wall of the first cooling groove 144 is vertically arranged, so that after the first cooling groove 144 is integrally cast and formed, it is ensured that the mold can be smoothly removed, thereby improving the production efficiency of the electric drive housing 10.

[0051] In some embodiments, the second columnar flow channel 142 extends in the vertical direction Z, and the first port 1421 and the second port 1422 are respectively located at two ends of the second columnar flow channel 142. The second port 1422 penetrates the wall of the first columnar flow channel 141 away from the communication flow channel 143, and the first port 1421 communicates the inside of the first cooling groove 144 and the second flow channel 140. The second columnar flow channel 142 extends in the vertical direction Z and communicates with the first cooling groove 144 and the first columnar flow channel 141 in the first direction X, respectively. The second port 1422 and the first port 1421 are respectively located at two ends of the second columnar flow channel 142, and the first port 1421 penetrates the bottom wall of the first cooling groove 144, thereby communicating the first cooling groove 144 and the second columnar flow channel 142. When the second columnar flow channel 142 is cast and formed, the plug can be arranged on the bottom wall of the first cooling groove 144, so that the second columnar flow channel 142 can be integrally cast and formed, and the second port 1422 is arranged at one end of the second columnar flow channel 142 close to the first columnar flow channel 141, so as to communicate the first columnar flow channel 141 and the second columnar flow channel 142. Therefore, the second columnar flow channel 142 extends in the vertical direction Z, so that the second flow channel 140 can be integrally cast and formed, and the generation efficiency of the electric drive shell 10 can be improved. The spacing distance of the first flow channel 130 and the first cooling groove 144 can cooperate with the radial dimension of the second flow channel 140, so that the second flow channel 140 can be directly formed by integral casting. Therefore, the second flow channel 140 can be integrally cast and formed, and at the same time, due to the appropriate distance between the first columnar flow channel 141 and the first flow channel 130, and the small size of the communication flow channel 143 for connecting the first flow channel 130 and the second flow channel 140, the molding time of the communication flow channel 143 can be reduced.

[0052] Referring to Figure 7 and Figure 8 , Figure 7 is Figure 3 the enlarged structural schematic view of the implementation of the circular frame. Figure 8 is a structural schematic view of an embodiment of the electric drive shell provided by the present application.

[0053] In some embodiments, the electric drive housing 10 comprises a water outlet channel 145, the water outlet channel 145 comprises a first water outlet channel 1451 and a second water outlet channel 1452, the first water outlet channel 1451 is arranged to extend in the second direction Y, one end of the first water outlet channel 1451 is connected to the first cooling groove 144 away from the first port 1421, the other end of the first water outlet channel 1451 is connected to the outside of the first part 110, the second water outlet channel 1452 is arranged to extend in the vertical direction Z, one end of the second water outlet channel 1452 is connected to the first water outlet channel 1451 away from the first cooling groove 144, the motor housing 20 is provided with a third water outlet channel 210 extending in the first direction X, the third water outlet channel 210 extends to the end of the motor housing 20 in the first direction X, the other end of the second water outlet channel 1452 is connected to the third water outlet channel 210. The electric drive housing 10 is provided with a water outlet channel 145, one end of the water outlet channel 145 is connected to the first cooling groove away from the second port 1422, the other end of the water outlet channel 145 is connected to the outside of the electric drive housing 10 and can be connected to the cooling circulating component to cool and circulate the cooling liquid for heat dissipation. The water outlet channel 145 comprises the first water outlet channel 1451 and the second water outlet channel 1452, because the gap between the first cooling groove 144 and the motor housing 20 is small. Therefore, one end of the first water outlet channel 1451 is connected to the first cooling groove 144 away from the first port 1421 and arranged to extend in the second direction Y, one end of the second water outlet channel 1452 is connected to the first water outlet channel 1451 away from the first cooling groove 144, the other end of the second water outlet channel 1452 is arranged to extend in the vertical direction Z to redirect the water outlet channel 145. The end of the second water outlet channel 1452 away from the first water outlet channel 1451 is blocked by the motor housing 20, therefore, the motor housing 20 is also provided with a third water outlet channel 210 arranged in the first direction X, so that one end of the third water outlet channel 210 is connected to the second water outlet channel 1452, the other end of the third water outlet channel 210 is arranged to extend in the first direction X to discharge the cooling liquid, which can also be connected to the cooling circulating component located at the end of the motor housing 20 away from the second water outlet channel 1452. The first water outlet channel 1451, the second water outlet channel 1452 and the third water outlet channel 210 are arranged to extend in the second direction Y, the vertical direction Z and the first direction X respectively, in addition to guiding the cooling liquid out of or into the cooling circulating component, the first water outlet channel 1451, the second water outlet channel 1452 and the third water outlet channel 210 can also be integrally casted, thereby improving the production efficiency of the electric drive housing 10.

[0054] In some embodiments, as Figure 6As shown, the first flow channel 130 includes a second cooling groove 132, the groove opening of the second cooling groove 132 is directed away from the first accommodating space 111, and the groove wall of the second cooling groove 132 is vertically arranged. In the figure, the second cooling groove 132 is covered by the connecting cover plate 131, the second cooling groove 132 and the first cooling groove 144 are arranged similarly, the groove opening of the second cooling groove 132 is arranged in the vertical direction Z away from the first accommodating space 111, and the groove wall of the second cooling groove 132 is also vertically arranged, so that the second cooling groove 132 can be integrally cast and formed, the connecting cover plate 131 is arranged on the groove opening of the second cooling groove 132 to be sealingly connected with the second cooling groove 132, and then the connecting cover plate 131 and the second cooling groove 132 are tightly matched to form a sealed first flow channel 130.

[0055] In this way, the electric drive housing 10 can be integrally cast and formed, and only the connecting cover plate 131 needs to be welded on the groove opening of the second cooling groove 132 to complete the manufacturing of the electric drive housing 10. This structure is simple and has a relatively fast production efficiency.

[0056] In summary, the second flow channel 140 can communicate the first flow channel 130 blocked by the motor housing 20 and the second accommodating space 121, the first flow channel 130 can communicate the second flow channel 140 and the first accommodating space 111, so that the first flow channel 130 and the second flow channel 140 jointly communicate the first accommodating space 111 and the second accommodating space 121, which simplifies the structure of the flow channel and can improve the heat dissipation efficiency.

[0057] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application. Especially, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. An electrically driven drive housing, characterized in that The electric drive shell comprises: a box body comprising a first part and a second part connected to each other, the first part being formed with a first accommodating space for accommodating a power supply, and the second part being formed with a second accommodating space for accommodating a controller; a motor shell located outside the box body, the motor shell being connected to the second part, and a projection of the motor shell covering a projection of the controller on the second part; wherein the first part is provided with a first flow channel, the first flow channel being in communication with the first accommodating space and outside of the first accommodating space, the second part is provided with a second flow channel, the second flow channel being arranged such that a first port thereof is covered by the motor shell, and a second port thereof is formed to avoid the motor shell, the first port being in communication with the second accommodating space and outside of the second accommodating space, the second port being in communication with the first port and being located between the first port and the first flow channel, and the electric drive shell further comprises a connecting cover plate located outside the box body, the connecting cover plate covering one end of the first flow channel away from the first accommodating space and one end of the second flow channel away from the second port, the connecting cover plate being connected to the box body to form a communication flow channel in communication with the first flow channel and the second flow channel.

2. The electrically driven enclosure of claim 1, wherein, The second flow channel comprises a first columnar flow channel and a second columnar flow channel, the second columnar flow channel being in communication with the first columnar flow channel and the second accommodating space, the first columnar flow channel being arranged to extend in a first direction, and one end of the first columnar flow channel in the first direction being provided with a third port, the third port being in communication with the inside and outside of the first columnar flow channel.

3. The electrically driven enclosure of claim 2, wherein, The first columnar flow channel is circular in cross section and is arranged to extend in the first direction to form a cylindrical shape, and one end of the first columnar flow channel close to the third port is provided with a liquid seal plug in interference fit with the third port.

4. The electrically driven enclosure of claim 2, wherein, The electric drive shell comprises a first cooling groove, the first cooling groove being located in the second accommodating space at a position corresponding to the controller, the first cooling groove being in communication with the second columnar flow channel, an opening of the first cooling groove facing the controller, and a side wall of the first cooling groove being arranged vertically.

5. The electrically driven enclosure of claim 4, wherein, The second columnar flow channel is arranged to extend in a vertical direction, the first port and the second port being located at two ends of the second columnar flow channel respectively, the second port penetrating a wall surface of the first columnar flow channel away from the communication flow channel, and the first port being in communication with the inside of the first cooling groove and the second columnar flow channel.

6. The electrically driven enclosure of claim 5, wherein, The motor drive housing comprises a water outlet channel, the water outlet channel comprises a first water outlet channel and a second water outlet channel, the first water outlet channel is arranged to extend in the second direction, one end of the first water outlet channel is communicated with one end of the first cooling groove away from the first port, the other end of the first water outlet channel is communicated with the outside of the first part, the second water outlet channel is arranged to extend in the vertical direction, one end of the second water outlet channel is communicated with one end of the first water outlet channel away from the first cooling groove, the motor housing is provided with a third water outlet channel extending in the first direction, the third water outlet channel extends in the first direction to the end of the motor housing, the other end of the second water outlet channel is communicated with the third water outlet channel.

7. The electrically driven enclosure of claim 1, wherein, The first channel comprises a second cooling groove, the groove opening of the second cooling groove faces away from the first containing space, and the groove wall of the second cooling groove is arranged vertically.

8. An electric drive assembly characterized by, The motor drive assembly comprises the motor drive housing as claimed in any one of claims 1 to 7, the motor drive housing is provided with a first part and a second part connected with each other, the motor drive assembly comprises a power supply and a power supply cooling channel, one side of the power supply cooling channel is fixed to the first part, the other side of the power supply cooling channel is arranged to extend in the vertical direction away from the first part, the power supply is provided with a heat dissipation space containing part of the power supply cooling channel, and part of the power supply cooling channel is located in the heat dissipation space.

9. The electric drive assembly of claim 8, wherein, The motor drive assembly further comprises a controller, the controller comprises a sealing surface and a heat dissipation pin, the second part is provided with a first cooling groove, the sealing surface is connected in sealing with the groove opening of the first cooling groove, the heat dissipation pin is arranged on the side of the sealing surface close to the first cooling groove and located in the first cooling groove.

10. A vehicle characterized by comprising: The vehicle comprises the motor drive assembly as claimed in any one of claims 8 or 9.

Images