Motor shell, motor and vehicle

Abstract

The utility model discloses a motor casing, a motor and a vehicle, the motor casing is provided with an inlet, an outlet and a medium flow channel, and the medium flow channel comprises a first axial flow channel which extends along the axial direction of the motor casing and is connected with the inlet; the second axial flow channel extends in the axial direction of the motor shell and is connected with the outlet; and the multiple circumferential flow channels extend in the circumferential direction of the motor shell and are arranged at intervals in the axial direction of the motor shell, and the multiple circumferential flow channels are connected between the first axial flow channel and the second axial flow channel so that a medium of the first axial flow channel can flow to the second axial flow channel through any one of the multiple circumferential flow channels. Therefore, through the arrangement of the motor shell, the design effect of a cooling flow path of a plurality of circumferential flow channels parallelly penetrating between a single water inlet and a single water outlet can be realized, so that the flow resistance of a cooling medium can be effectively reduced on the basis of increasing the heat dissipation area of the flow channels, and the heat dissipation uniformity and the heat dissipation efficiency are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a motor housing, a motor and a vehicle. Background Art

[0002] With the global oil resource crisis and environmental pollution becoming increasingly prominent, new energy vehicles are gradually being widely used because their energy utilization efficiency is much higher than that of ordinary gasoline vehicles. As one of the important components of electric vehicles, the motor's integrated miniaturization design is extremely important. In addition, the limited installation space of electric vehicles requires the motor to have a high power density and efficiency. In addition, the complex road conditions and driving habits make the motor's operating conditions very complex and the temperature rise is serious. Excessive motor temperature rise or local temperature rise will not only cause structural deformation, but also reduce the motor's pressure resistance and insulation, seriously affecting its service life. The use of casing liquid cooling can achieve a good heat dissipation effect compared to ordinary self-cooling and air-cooling motors, increase motor efficiency, and provide motor torque and power density. The optimization of different waterway structures can enhance the heat dissipation effect. Temperature is of great significance to the safe operation of the motor.

[0003] In the related technology, the motor used in the extended-range electric vehicle has shock absorbers, flywheels and other components designed between the motor and the engine, so that the motor housing needs to add a flywheel housing, which increases the weight and cost of the assembly, which is not conducive to the lightweight and integrated design of the motor and the dynamic loading of the whole vehicle, and occupies a relatively large space. In addition, the water channels of the controller and the motor are designed separately, and are respectively designed with four water inlets and outlets, and are designed with connecting water pipes, which is costly and occupies a large space in the whole vehicle. In addition, the most common cooling structures used in the drive motors of new energy vehicles are axial spiral water channels, radial S-shaped or In the "Ji"-shaped water channel, the water flow in the radial S-shaped or "Ji"-shaped water channel has many bends, resulting in a large pressure head loss; therefore, the radial S-shaped or "Ji"-shaped water channel needs to choose a larger water pump to achieve the same flow rate, which will be expensive. In addition, there are sealing problems at both ends of the radial S-shaped or "Ji"-shaped water channel. No matter which sealing method is used, there will be a risk of water seepage into the casing; the common spiral water channel, because the water inlet and outlet positions on both sides only have half of the water channel space, cannot fully cover the entire two ends of the iron core, resulting in high local temperature of the iron core, which is easy to cause reduced insulation performance and affect the service life of the motor. Since the water flow in the spiral water channel has a certain angle in the circumferential direction, this will reduce the width of the water channel with the same axial size, increasing pressure loss. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a motor housing, which can achieve the design effect of a cooling flow path with multiple circumferential flow channels running through a single water inlet and a single water outlet in parallel, thereby increasing the heat dissipation area of ​​the flow channel and effectively reducing the flow resistance of the cooling medium.

[0005] The utility model further provides a motor.

[0006] The utility model further provides a vehicle.

[0007] According to the motor case of the first aspect of the utility model, the motor case has an inlet, an outlet and a medium flow channel, and the medium flow channel includes: a first axial flow channel, which extends along the axial direction of the motor case and is connected to the inlet; a second axial flow channel, which extends along the axial direction of the motor case and is connected to the outlet; a plurality of circumferential flow channels, which extend along the circumference of the motor case and are arranged at intervals along the axial direction of the motor case, and the plurality of circumferential flow channels are respectively connected between the first axial flow channel and the second axial flow channel, so that the medium of the first axial flow channel flows to the second axial flow channel through any one of the plurality of circumferential flow channels.

[0008] Therefore, by setting up the motor housing, it is possible to achieve a design effect of a cooling flow path with multiple circumferential flow channels running parallel to a single water inlet and a single water outlet, thereby increasing the heat dissipation area of ​​the flow channel and effectively reducing the flow resistance of the cooling medium, thereby improving the heat dissipation uniformity and heat dissipation efficiency.

[0009] In some examples of the present invention, the motor housing forms a plurality of first dividing ribs in the medium flow channel, and the plurality of first dividing ribs extend along the circumference of the motor housing and are arranged at intervals along the axial direction of the motor housing to separate a plurality of circumferential flow channels.

[0010] In some examples of the utility model, the motor housing forms a second dividing rib in the medium flow channel, one end of the second dividing rib is connected to the edge of the medium flow channel and the other end corresponds to the first axial flow channel, the second dividing rib and the edge of the medium flow channel form a guide flow channel, and the guide flow channel is connected between the inlet and the first axial flow channel.

[0011] In some examples of the present invention, one of the plurality of first dividing ribs is spaced apart from the second dividing rib in the circumferential direction of the motor housing and forms a connecting port connecting two sides of the circumferential flow channel.

[0012] In some examples of the utility model, the motor housing is provided with a first diverter rib in the medium flow channel, the first diverter rib is provided in the first axial flow channel and extends along the axial direction of the motor housing; and / or the first diverter rib is provided at the inlet of the circumferential flow channel and extends along the circumference of the motor housing, the first diverter rib is protruding toward the first axial flow channel on the side relative to the inlet of the circumferential flow channel.

[0013] In some examples of the utility model, the motor housing is provided with a second diverter rib at the outlet of the circumferential flow channel, the second diverter rib extends along the circumference of the motor housing, and the second diverter rib protrudes toward the second axial flow channel on one side relative to the outlet of the circumferential flow channel.

[0014] In some examples of the present invention, the motor housing is provided with a third dividing rib in the medium flow channel, the third dividing rib extends along the axial direction of the motor housing and is respectively connected to the axial opposite side edges of the medium flow channel, and the third dividing rib is located between the first axial flow channel and the second axial flow channel.

[0015] In some examples of the present invention, an engine mounting surface is provided at one axial end of the motor housing, and the mounting surface is suitable for mounting the engine; and / or a controller mounting portion is provided at the other axial end of the motor housing, and the controller mounting portion is used to install a motor controller, and the inlet is provided at the other axial end of the motor housing and is suitable for connecting with the motor controller.

[0016] The motor according to the second aspect of the utility model comprises: the above-mentioned motor housing.

[0017] A vehicle according to a third aspect of the utility model comprises: the above-mentioned motor.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 It is a schematic diagram of the structure of the motor housing according to an embodiment of the utility model;

[0021] Figure 2 is a cross-sectional view of a motor housing according to an embodiment of the utility model;

[0022] Figure 3 is a front view of an inner shell according to an embodiment of the utility model;

[0023] Figure 4 is a schematic structural diagram of an inner shell according to an embodiment of the utility model;

[0024] Figure 5 is a schematic diagram of the flow direction of the cooling medium according to an embodiment of the utility model;

[0025] Figure 6 is a schematic diagram of the flow direction of the cooling medium from another angle according to an embodiment of the utility model;

[0026] Figure 7 is a front view of an inner shell according to another embodiment of the utility model;

[0027] Figure 8 is a schematic structural diagram of an inner shell according to another embodiment of the utility model;

[0028] Fig. 9 is a schematic diagram of the flow direction of the cooling medium according to another embodiment of the utility model;

[0029] Fig.10 It is a schematic diagram of the flow direction of the cooling medium at another angle according to another embodiment of the utility model.

[0030] Reference numerals:

[0031] 100, motor housing; 101, inlet; 102, outlet; 103, inner housing; 104, outer housing;

[0032] 1. medium flow channel; 11. first axial flow channel; 12. second axial flow channel; 13. circumferential flow channel; 131. communication port;

[0033] 2. First dividing rib; 3. Second dividing rib; 4. Guide channel; 5. First flow dividing rib; 6. Second flow dividing rib;

[0034] 7. The third dividing rib; 8. The engine mounting surface; 9. The controller mounting portion. DETAILED DESCRIPTION

[0035] Embodiments of the present invention are described in detail below, and the embodiments described with reference to the accompanying drawings are exemplary.

[0036] Reference below Figure 1-Figure 10 A motor housing 100 , a motor, and a vehicle according to an embodiment of the present invention are described.

[0037] Combination Figure 1-Figure 10 As shown, according to the motor housing 100 of the first embodiment of the utility model, the motor housing 100 has an inlet 101, an outlet 102 and a medium flow channel 1.

[0038] The motor housing 100 includes an inner housing 103 and an outer housing 104, and the motor housing 100 can protect and support the motor. The inlet 101 and the outlet 102 are both arranged on the outer housing 104, and the medium flow channel 1 is arranged on the inner housing 103, so that the cooling medium can continuously form a circulating heat exchange effect inside the motor housing 100 and outside the motor housing 100. In addition, the motor can convert electrical energy into mechanical energy, thereby providing driving force for the operation of the equipment.

[0039] Specifically, the medium flow channel 1 includes a first axial flow channel 11, a second axial flow channel 12 and a plurality of circumferential flow channels 13, the first axial flow channel 11 extends along the axial direction of the motor housing 100, and the first axial flow channel 11 is connected to the inlet 101, the second axial flow channel 12 extends along the axial direction of the motor housing 100, and the second axial flow channel 12 is connected to the outlet 102, the plurality of circumferential flow channels 13 extend along the circumference of the motor housing 100, and the plurality of circumferential flow channels 13 are arranged at intervals along the axial direction of the motor housing 100, and the plurality of circumferential flow channels 13 are respectively connected between the first axial flow channel 11 and the second axial flow channel 12, so that the medium of the first axial flow channel 11 flows to the second axial flow channel 12 through any one of the plurality of circumferential flow channels 13. For example, the cooling medium in the medium flow channel 1 can be cooling oil, water or air, but is not limited thereto.

[0040] Specifically, the first axial flow channel 11 and the second axial flow channel 12 are respectively connected to the inlet 101 and the outlet 102 along the axial direction of the motor housing 100, and the multiple circumferential flow channels 13 are connected between the first axial flow channel 11 and the second axial flow channel 12 along the circumferential direction of the motor housing 100, so that the cooling medium flowing in from the inlet 101 can smoothly pass through the first axial flow channel 11, at least any one of the multiple circumferential flow channels 13, and the second axial flow channel 12 in sequence and then flow to the outlet 102 (that is, one inlet 101 for water intake and a cooling flow path design of multiple circumferential flow channels 13 in parallel, and the cooling medium can also flow out in parallel through three parallel circumferential flow channels 13 to one outlet 102), thereby comprehensively and effectively completing the heat dissipation and cooling work of the motor.

[0041] In addition, the plurality of circumferential flow channels 13 can increase the heat dissipation area of ​​the flow channel along the axial and circumferential directions of the motor housing 100, thereby improving the heat dissipation uniformity, avoiding excessive local temperature rise of the motor, and improving the heat dissipation efficiency, which is conducive to rapid cooling of the motor; thereby ensuring the working stability of the motor. Along the axial direction of the motor housing 100, the inlet 101 and the outlet 102 can be arranged in the same plane, so that the layout of the medium flow channel 1 is more compact, which is conducive to the miniaturization and lightweight design effect of the motor housing 100.

[0042] In addition, compared with the traditional arrangement of radial S-shaped or "J"-shaped water channels on the motor housing (there are many bends in the flow path of the radial S-shaped or "J"-shaped water channels, resulting in a large pressure head loss, so the radial S-shaped or "J"-shaped water channels require a larger water pump to achieve the same flow rate, which is more expensive; in addition, there are sealing problems at both ends of the radial S-shaped or "J"-shaped water channels, which may lead to the risk of water seepage in the motor housing), the embodiment of the present scheme can reduce the bending position of the medium flow channel 1 through a water channel design in which an inlet 101 and an outlet 102 are parallel to and connected with multiple circumferential flow channels 13, thereby effectively reducing the flow resistance of the cooling medium while increasing the heat dissipation area of ​​the cooling flow channel, thereby improving the heat dissipation uniformity and heat dissipation efficiency; and the embodiment of the present scheme can reduce the volume of the water pump of the whole vehicle under the same cooling capacity requirements, reduce the cost of the whole vehicle, and also greatly increase the water flow rate. As the water flow rate increases, the temperature rise is further reduced, and the temperature rise is reduced, the operating conditions of the motor can be improved, and the power density and torque density of the motor can be increased.

[0043] In addition, compared with the traditional arrangement of arranging axial spiral water channels on the motor casing (since the water inlet and outlet positions on both sides of the axial direction only have half of the water channel space, they cannot fully cover the entire two ends of the iron core, resulting in high local temperature of the iron core, which can easily cause the insulation performance of the iron core to decrease, affecting the service life of the motor; and since the water flow in the axial spiral water channel has a certain angle in the circumferential direction, this will reduce the width of the water channel for the same axial size, increasing the pressure loss), the embodiment of the present scheme can increase the cooling coverage area of ​​the medium flow channel 1 along the circumferential and axial directions under the premise of the same size of the motor casing 100, thereby improving the overall heat dissipation uniformity of the motor and avoiding the risk of short motor life due to local excessive temperature rise.

[0044] Therefore, by setting up the motor housing 100, it is possible to achieve a design effect of a cooling flow path in which a single water inlet and a single water outlet are parallelly connected with multiple circumferential flow channels 13, thereby increasing the heat dissipation area of ​​the flow channel and effectively reducing the flow resistance of the cooling medium, thereby improving the heat dissipation uniformity and heat dissipation efficiency.

[0045] According to some optional embodiments of the present invention, combined with Figure 1 , Figure 3-Figure 4 and Figure 7-Figure 8 As shown, the motor housing 100 has a plurality of first dividing ribs 2 formed in the medium flow channel 1. The plurality of first dividing ribs 2 extend along the circumference of the motor housing 100 and are spaced apart along the axial direction of the motor housing 100 to separate a plurality of circumferential flow channels 13.

[0046] Among them, multiple first dividing ribs 2 extend along the circumference of the motor housing 100 and are also arranged at intervals along the axial direction of the motor housing 100. This can serve to separate the medium flow channel 1 along the axial direction to form multiple parallel circumferential flow channels 13, so that the cooling medium can be forcibly guided into different circumferential flow channels 13, avoiding the problem of cooling medium flow path concentration in the medium flow channel 1, thereby improving the heat dissipation uniformity and comprehensiveness of the motor housing 100.

[0047] Specifically, combined Figure 1 , Figure 3-Figure 4 and Figure 7-Figure 8 As shown, the motor housing 100 has a second dividing rib 3 formed in the medium flow channel 1, one end of the second dividing rib 3 is connected to the edge of the medium flow channel 1, and the other end of the second dividing rib 3 corresponds to the first axial flow channel 11, and the second dividing rib 3 and the edge of the medium flow channel 1 form a guide flow channel 4, which is connected between the inlet 101 and the first axial flow channel 11.

[0048] It can be understood that one end of the second dividing rib 3 is connected to the edge of the medium flow channel 1, and the other end of the second dividing rib 3 corresponds to the first axial flow channel 11, so that the cooling medium flowing in from the inlet 101 can only flow to the first axial flow channel 11 along the guide channel 4 formed by the second dividing rib 3 and the edge of the medium flow channel 1, and then flow to the outlet 102 through at least any one of the multiple circumferential flow channels 13 that pass through the first axial flow channel 11, so that the cooling medium flowing in from the inlet 101 can flow according to the specified guide path, avoiding the cooling medium entering the medium flow channel 1 from performing irregular diffusion movement, thereby effectively ensuring the uniformity of cooling and heat dissipation.

[0049] Furthermore, combined with Figure 1 and Figure 4 As shown, one of the plurality of first dividing ribs 2 is spaced apart from the second dividing rib 3 in the circumferential direction of the motor housing 100 and forms a connecting port 131 connecting the two sides of the circumferential flow channel 13 .

[0050] That is to say, since the second dividing rib 3 is connected to the edge of the medium flow channel 1, the cooling medium at the inlet 101 can only flow unidirectionally along the guide flow channel 4 formed by the second dividing rib 3 and the edge of the medium flow channel 1. When the cooling medium flows along the guide flow channel 4 and the first axial flow channel 11 to the inlets of multiple circumferential flow channels 13 in sequence, in order not to waste the space on the motor housing 100 that is in the same plane as the guide flow channel 4 in the axial direction, an arrangement is adopted in which one of the multiple first dividing ribs 2 is spaced apart from the second dividing rib 3 in the circumferential direction of the motor housing 100, so that the cooling medium can flow through the connecting port 131 to the circumferential space that is in the same axial horizontal plane as the inlet 101 and the guide flow channel 4, thereby increasing the heat dissipation area and improving the overall heat dissipation uniformity of the motor housing 100.

[0051] According to some optional embodiments of the present invention, combined with Figure 1 , Figure 3-Figure 4 As shown, the motor housing 100 is provided with a first diverter rib 5 in the medium flow channel 1 . The first diverter rib 5 is provided in the first axial flow channel 11 , and the first diverter rib 5 extends along the axial direction of the motor housing 100 .

[0052] Among them, the first diverter rib 5 in the first axial flow channel 11 extends along the axial direction of the motor housing 100, so that the first axial flow channel 11 can be further diverted in the axial direction, so that the cooling medium can rebound to the circumferential flow channel 13 with a smaller axial distance from the inlet 101 after being blocked by the first diverter rib 5 (the cooling medium not blocked by the first diverter rib 5 directly flows through the first axial flow channel 11 to the circumferential flow channel 13 with a larger axial distance from the inlet 101), thereby accelerating the flow rate and flow amount of the cooling medium in the medium flow channel 1, increasing the effective flow path of the cooling medium in the circumferential direction, and allowing the cooling medium to quickly flow to multiple parallel circumferential flow channels 13 at the inlet 101, avoiding the risk of dead water and water blockage, thereby improving the circulation and heat dissipation efficiency of the cooling medium.

[0053] Optionally, combined Figure 1 , Figure 3-Figure 4 and Figure 7-Figure 8 As shown, the first diverter rib 5 is disposed at the inlet of the circumferential flow channel 13 , and the first diverter rib 5 extends along the circumference of the motor housing 100 , and the first diverter rib 5 is protruded toward the first axial flow channel 11 relative to the inlet side of the circumferential flow channel 13 .

[0054] Among them, the two ends of the first diverter rib 5 in the axial direction are respectively arranged at the inlet of the circumferential flow channel 13 and the position protruding toward the first axial flow channel 11, and the first diverter rib 5 extends along the circumference of the motor housing 100, so that the circumferential diversion effect of the circumferential flow channel 13 can be further played, which is convenient for refining the circumferential flow channel 13, so that the cooling medium can flow smoothly into the circumferential flow channel 13 along the edge of the first diverter rib 5 after being blocked by the first diverter rib 5, thereby accelerating the flow rate and flow amount of the cooling medium in the medium flow channel 1, increasing the effective flow path of the cooling medium in the circumferential direction, and allowing the cooling medium to quickly flow to multiple parallel circumferential flow channels 13 at the inlet 101, avoiding the risk of dead water and water blockage, thereby improving the circulation and heat dissipation efficiency of the cooling medium.

[0055] For example, refer to Figure 3-Figure 6 As shown, when the cooling medium enters the first axial flow channel 11 through the inlet 101, the second diverter rib 6 diverts the cooling medium into two paths and flows into the same circumferential flow channel 13. When multiple second diverter ribs 6 corresponding to multiple circumferential flow channels 13 are arranged in an "oblique progressive" manner, the flow rate of the cooling medium can be accelerated, so that the cooling medium can quickly flow to multiple parallel channels at the inlet 101, avoiding the occurrence of dead water.

[0056] According to some optional embodiments of the present invention, combined with Figure 1 , Figure 3-Figure 4 and Figure 7-Figure 8 As shown, the motor housing 100 is provided with a second diverter rib 6 at the outlet 102 of the circumferential flow channel 13 . The second diverter rib 6 extends along the circumference of the motor housing 100 . The second diverter rib 6 is protruded toward the second axial flow channel 12 relative to the outlet side of the circumferential flow channel 13 .

[0057] Specifically, the two ends of the second diverter rib 6 along the axial direction are respectively arranged at the outlet of the circumferential flow channel 13 and the position protruding toward the second axial flow channel 12, and the second diverter rib 6 extends along the circumference of the motor housing 100, so that the circumferential flow channel 13 can be further diverted in the circumferential direction, which is convenient for refining the circumferential flow channel 13, so that the cooling medium can flow smoothly along the edge of the second diverter rib 6 into the second axial flow channel 12 after being blocked by the second diverter rib 6, thereby accelerating the flow rate and flow amount of the cooling medium in the medium flow channel 1, increasing the effective flow path of the cooling medium flowing in the circumferential direction to the outlet 102, and allowing the cooling medium to quickly flow from the outlets of multiple parallel circumferential flow channels 13 to the outlet 102 of the motor housing 100, avoiding the risk of dead water and water blockage, thereby improving the circulation and heat dissipation efficiency of the cooling medium.

[0058] According to some optional embodiments of the present invention, combined with Figure 1 , Figure 3-Figure 4 and Figure 7-Figure 8As shown, the motor housing 100 is provided with a third dividing rib 7 in the medium flow channel 1, the third dividing rib 7 extends along the axial direction of the motor housing 100, and the third dividing rib 7 is respectively connected to the axial opposite side edges of the medium flow channel 1, and the third dividing rib 7 is located between the first axial flow channel 11 and the second axial flow channel 12.

[0059] Among them, as arranged above, it can ensure that the inlet 101 connected to the first axial flow channel 11 and the outlet 102 connected to the second circumferential flow channel 13 are circumferentially blocked, thereby preventing the cooling medium in the first axial flow channel 11 from flowing directly to the second circumferential flow channel 13 without passing through the circumferential flow channel 13, avoiding part of the cooling medium from not flowing to the normal flow and heat dissipation path, thereby effectively ensuring the heat dissipation working stability and cooling efficiency of the motor housing 100.

[0060] According to some optional embodiments of the present invention, combined with Figure 1 As shown, an engine mounting surface 8 is provided at one axial end of the motor housing 100, and the mounting surface is suitable for mounting the engine. For example, the motor housing 100 can be welded to the engine mounting surface 8 by friction stir welding to form an integral shell.

[0061] Among them, compared with the motor housing of the traditional extended-range vehicle (due to the design of shock absorbers, flywheels and other components between the motor and the engine, the motor housing needs to add a flywheel housing, which increases the weight and cost of the assembly), the embodiment in this case directly provides an engine mounting surface 8 at one axial end of the motor housing 100 for adaptation and installation with the engine. In this way, the motor housing 100 and the engine mounting surface 8 are integrated, which can effectively shorten the axial length of the powertrain, which is beneficial to the lightweight and integrated design of the motor and the compactness of the structure of the whole vehicle, thereby improving the practicality and economy of the motor housing 100.

[0062] Optionally, combined Figure 2 As shown, a controller mounting portion 9 is provided at the other axial end of the motor housing 100, and the controller mounting portion 9 is used to mount the motor controller, and an inlet 101 is provided at the other axial end of the motor housing 100, and the inlet 101 is suitable for communicating with the motor controller. For example, the motor housing 100 and the controller mounting portion 9 can be welded into an integral shell by friction stir welding.

[0063] Among them, compared with the traditional arrangement of the cooling flow channels of the controller and the motor (the water channels of the controller and the motor are designed separately, and are respectively designed with four water inlets and outlets, and are designed with connecting water pipes, which are of high cost and occupy a large space in the whole vehicle), the embodiment in this case directly provides a controller mounting part 9 at the other axial end of the motor housing 100 for adapting and installing with the controller. In this way, the motor housing 100 and the controller mounting part 9 are integrated, so that the cooling water channels of the motor and the controller only need one inlet 101 and outlet 102, thereby eliminating the connecting water pipes of the motor and the controller, effectively reducing costs, and facilitating vehicle installation.

[0064] In addition, the controller mounting portion 9 on the motor is designed with an inlet 101 (motor), and the controller is directly mounted on the controller mounting portion 9. The connecting water channel between the controller and the motor is integrated by sealing with a water channel sealing ring, thereby eliminating the controller's water outlet, the motor's water inlet, and the motor and controller connecting water pipe components, thereby effectively reducing the weight and cost of the assembly.

[0065] The motor according to the second aspect of the present invention includes the motor housing 100 of the above embodiment. The motor having the motor housing 100 can effectively improve the temperature rise problem during operation, thereby improving the operating conditions of the motor and increasing the power density and torque density of the motor.

[0066] The vehicle according to the third aspect of the utility model comprises the motor of the above-mentioned embodiment. The vehicle having the motor can increase the service life and effective endurance of the motor, thereby ensuring the working stability of the vehicle and further enhancing the market competitiveness of the vehicle.

[0067] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0068] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0069] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0070] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A motor housing (100), characterized in that: The motor housing (100) has an inlet (101), an outlet (102) and a medium flow channel (1), wherein the medium flow channel (1) comprises: A first axial flow channel (11), the first axial flow channel (11) extending along the axial direction of the motor housing (100) and connected to the inlet (101); A second axial flow channel (12), the second axial flow channel (12) extending along the axial direction of the motor housing (100) and connected to the outlet (102); A plurality of circumferential flow channels (13), the plurality of circumferential flow channels (13) extending along the circumference of the motor housing (100) and arranged at intervals along the axial direction of the motor housing (100), the plurality of circumferential flow channels (13) being respectively connected between the first axial flow channel (11) and the second axial flow channel (12), so that the medium of the first axial flow channel (11) flows to the second axial flow channel (12) through any one of the plurality of circumferential flow channels (13).

2. The motor housing (100) according to claim 1, characterized in that: The motor housing (100) is provided with a plurality of first dividing ribs (2) in the medium flow channel (1); the plurality of first dividing ribs (2) extend along the circumference of the motor housing (100) and are arranged at intervals along the axial direction of the motor housing (100) to separate a plurality of circumferential flow channels (13).

3. The motor housing (100) according to claim 2, characterized in that: The motor housing (100) is provided with a second dividing rib (3) in the medium flow channel (1); one end of the second dividing rib (3) is connected to the edge of the medium flow channel (1) and the other end corresponds to the first axial flow channel (11); the second dividing rib (3) and the edge of the medium flow channel (1) form a guide flow channel (4); the guide flow channel (4) is connected between the inlet (101) and the first axial flow channel (11).

4. The motor housing (100) according to claim 3, characterized in that: One of the plurality of first dividing ribs (2) is spaced from the second dividing rib (3) in the circumferential direction of the motor housing (100) to form a connecting port (131) connecting the two sides of the circumferential flow channel (13).

5. The motor housing (100) according to claim 1, characterized in that: The motor housing (100) is provided with a first diverter rib (5) in the medium flow channel (1), the first diverter rib (5) being provided in the first axial flow channel (11) and extending along the axial direction of the motor housing (100); and / or The first flow dividing rib (5) is arranged at the inlet of the circumferential flow channel (13) and extends along the circumference of the motor housing (100); the first flow dividing rib (5) is arranged to protrude toward the first axial flow channel (11) on the side of the inlet of the circumferential flow channel (13).

6. The motor housing (100) according to claim 1, characterized in that: The motor housing (100) is provided with a second diverter rib (6) at the outlet of the circumferential flow channel (13); the second diverter rib (6) extends along the circumference of the motor housing (100); the second diverter rib (6) is provided protruding toward the second axial flow channel (12) on one side of the outlet of the circumferential flow channel (13).

7. The motor housing (100) according to claim 1, characterized in that: The motor housing (100) is provided with a third dividing rib (7) in the medium flow channel (1); the third dividing rib (7) extends along the axial direction of the motor housing (100) and is respectively connected to the axially opposite two side edges of the medium flow channel (1); the third dividing rib (7) is located between the first axial flow channel (11) and the second axial flow channel (12).

8. The motor housing (100) according to claim 1, characterized in that: An engine mounting surface (8) is provided at one axial end of the motor housing (100), and the mounting surface is suitable for mounting the engine; and / or A controller mounting portion (9) is provided at the other axial end of the motor housing (100), and the controller mounting portion (9) is used to mount a motor controller. The inlet (101) is provided at the other axial end of the motor housing (100) and is suitable for communicating with the motor controller.

9. A motor, characterized in that: include: The motor housing (100) according to any one of claims 1 to 8.

10. A vehicle, characterized in that: include: The motor as claimed in claim 9.

Images