Casing of motor, motor and rotating equipment

Abstract

The utility model discloses a casing of a motor, the motor and rotating equipment, and relates to the technical field of motors. The casing of the motor disclosed by the utility model is provided with at least two layers of cooling flow channels distributed along the radial direction of the casing, and the adjacent cooling flow channels are communicated with each other and are used for conveying the same cooling medium in the at least two layers of cooling flow channels; each cooling flow channel comprises a plurality of sub-flow channels which are communicated with one another, and in any cooling flow channel, at least part of the sub-flow channels and the sub-flow channels of the adjacent cooling flow channel are arranged in a one-to-one correspondence mode in the radial direction of the machine shell. The scheme at least can improve the cooling performance of the motor.

Description

Technical Field

[0001] The present application relates to the technical field of motors, and in particular to a motor housing, a motor and a rotating device. Background Art

[0002] With the continuous development of technology, motors have been widely used in many industries, such as medical equipment, new energy, etc. Current motors can often provide larger torque and speed, and pursue smaller size, which leads to increased heat generation during operation, thus putting forward higher requirements on the cooling performance of the motor.

[0003] In the related art, a cooling channel is often opened in the motor housing, and cooling is achieved by circulating coolant. However, in practice, the cooling performance of the motor that achieves heat dissipation through the liquid cooling housing is still insufficient and cannot meet the growing technical requirements. Utility Model Content

[0004] The present application provides a motor housing, a motor and a rotating device, which can at least improve the cooling performance of the motor.

[0005] In a first aspect, an embodiment of the present application provides a casing of a motor. The casing has at least two layers of cooling channels distributed along its radial direction, and adjacent cooling channels are interconnected to transport the same cooling medium in at least two layers of cooling channels; each cooling channel includes a plurality of interconnected sub-channels, and in any cooling channel, at least part of the sub-channels are arranged in a one-to-one correspondence with the sub-channels of adjacent cooling channels along the radial direction of the casing.

[0006] In some embodiments, the inlet of the casing is connected to the cooling channel in the innermost layer, and the outlet of the casing is connected to the cooling channel in the outermost layer; in two adjacent layers of cooling channels, along the circumference of the casing, the width of the sub-channel in the inner layer is smaller than the width of the sub-channel in the outer layer.

[0007] In some embodiments, the inlet of the casing is connected to the cooling channel in the outermost layer, and the outlet of the casing is connected to the cooling channel in the innermost layer; in two adjacent layers of cooling channels, the width of the sub-channel in the inner layer along the circumference of the casing is greater than the width of the sub-channel in the outer layer along the circumference of the casing.

[0008] In some embodiments, along the radial direction of the casing, the width of the sub-channel corresponding to the casing inlet is greater than the width of the sub-channel connected thereto.

[0009] In some embodiments, along the radial direction of the casing, the width of the sub-channel corresponding to the casing outlet is greater than the width of the sub-channel connected thereto.

[0010] In some embodiments, the casing includes an intermediate side wall arranged between adjacent cooling channels, and the thickness of the intermediate side wall is less than the thickness of the outer side wall on the casing and the thickness of the inner side wall on the casing, wherein the outer side wall is the side wall on the casing corresponding to the cooling channel and close to its outer peripheral surface, and the inner side wall is the side wall on the casing corresponding to the cooling channel and close to its inner peripheral surface.

[0011] In some embodiments, the cooling medium in two corresponding sub-flow channels along the radial direction of the housing flows in opposite directions.

[0012] In some embodiments, the casing has a partition disposed between two adjacent sub-channels in the cooling channel, the partition being used to separate the two adjacent sub-channels; in two adjacent layers of cooling channels, the partitions are disposed one-to-one in a radial direction of the casing.

[0013] In some embodiments, the casing further includes a connecting notch disposed at one end of the partition, and the connecting notch is used to connect two adjacent sub-channels; in the corresponding partitions in the radial direction of the casing, the connecting notches are all disposed at the same end of the corresponding partitions.

[0014] In some embodiments, the casing has a partition provided between two adjacent sub-channels in the cooling channel, and the partition is used to isolate the two adjacent sub-channels; wherein: the casing has a first reinforcement structure provided on its outer peripheral surface, and the first reinforcement structure is connected to at least one partition of an adjacent cooling channel; and / or, the casing has a second reinforcement structure provided on its inner peripheral surface, and the second reinforcement structure is connected to at least one partition of an adjacent cooling channel.

[0015] In some embodiments, the casing includes a first reinforcing structure as a mounting platform, the mounting platform is used to set the inlet and outlet of the casing, and along the circumference of the casing, both ends of the mounting platform are respectively connected to a partition.

[0016] In a second aspect, an embodiment of the present application provides a motor, which includes a housing of the motor as described in the first aspect.

[0017] In a third aspect, an embodiment of the present application provides a rotating device, which includes the motor as described in the second aspect.

[0018] The technical solution adopted in the embodiments of the present application can achieve the following beneficial effects:

[0019] In the casing of the motor disclosed in the embodiment of the present application, the cooling channels are distributed in at least two layers along the radial direction of the casing, and the sub-channels of adjacent cooling channels are correspondingly arranged along the radial direction of the casing, which is equivalent to the cooling channels being stacked in the radial direction of the casing. In this way, a larger channel for the circulation of the cooling medium is constructed in the same layout space, which can increase the heat exchange area between the cooling medium and the casing, thereby improving the cooling performance of the casing.

[0020] At the same time, based on the structural layout of the casing disclosed in the embodiment of the present application, part of the heat of the cooling medium in the cooling channel on the outside will be absorbed by the cooling medium in the cooling channel on the inside, and the temperature of the cooling medium in the cooling channel on the outside will be reduced, so that the nearby casing parts can be better heat exchanged, thereby balancing the overall cooling effect of the casing. It is worth noting that this can also make full use of the heat exchange capacity of the cooling medium and avoid waste of heat exchange capacity.

[0021] Compared with the related art, the casing disclosed in the embodiment of the present application has better cooling performance, more balanced cooling effect, and can also avoid the waste of heat exchange capacity of the cooling medium, thereby fully exerting the limit performance of the motor, reducing the power consumption of the motor and extending the service life of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0023] In the attached picture:

[0024] Figure 1 A schematic diagram of the structure of a housing disclosed in some embodiments of the present application;

[0025] Figure 2 Another structural schematic diagram of a housing disclosed in some embodiments of the present application;

[0026] Figure 3 A top view of a housing disclosed for some embodiments of the present application;

[0027] Figure 4 A schematic diagram of the structure inside the casing disclosed in some embodiments of the present application;

[0028] Figure 5 Another schematic diagram of the structure inside the casing disclosed in some embodiments of the present application;

[0029] Figure 6 Another schematic diagram of the structure inside the casing disclosed in some embodiments of the present application.

[0030] Description of reference numerals:

[0031] 100-Chassis,

[0032] 100a-end cover, 100b-inlet, 100c-outlet,

[0033] 110 - cooling channel, 111 - sub-channel, 120 - middle side wall, 130 - outer side wall, 140 - inner side wall, 150 - partition, 160 - connection notch, 170 - first reinforcement structure. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0035] In order to facilitate understanding of the motor housing, motor and rotating equipment provided in the embodiments of the present application, the relevant technologies are first introduced in conjunction with application scenarios.

[0036] In the related art, the cooling channel in the motor housing realizes heat exchange with the housing by circulating coolant (such as cooling water, cooling oil, etc.), thereby continuously taking away the heat of the housing and achieving the effect of cooling. However, in practice, the motors of the above related art still have insufficient cooling performance and it is difficult to exert the maximum performance.

[0037] After research, the inventors found that the above problems are mainly caused by insufficient heat exchange area between the cooling medium and the casing in the cooling channel. Specifically, the cooling channel in the relevant casing is usually a single-layer structure. During the heat exchange between the cooling medium and the casing, the heat exchange amount is not large enough due to the small contact area, so it is impossible to take away enough heat, and it is impossible to effectively cool the casing. In addition, because the cooling medium does not take away much heat from the casing, its heat exchange capacity is also wasted.

[0038] In view of this, some embodiments of the present application provide a housing for a motor. The type of motor used by the housing is not limited in the embodiments of the present application. For example, the housing can be applied to a magnetic levitation motor.

[0039] See also Figure 1 to Figure 6 The motor casing 100 disclosed in the embodiment of the present application has at least two layers of cooling channels 110 distributed along its radial direction, and adjacent cooling channels 110 are interconnected to transport the same cooling medium in at least two layers of cooling channels 110; the cooling channels 110 each include a plurality of sub-channels 111 interconnected, and in any cooling channel 110, at least part of the sub-channels 111 are arranged one-to-one with the sub-channels 111 of adjacent cooling channels 110 along the radial direction of the casing 100.

[0040] It can be understood that the cooling channel 110 can be two layers, such as Figure 2 As shown, the housing 100 has cooling channels 110 distributed in two layers, inner and outer; the number of cooling channels 110 may be more than two layers, such as three layers, four layers, etc., which can be determined according to the cooling performance requirements of the motor. As for the cooling medium, it can be a coolant, such as cooling oil, cooling water, etc., of course, it can also be a cooling airflow, such as nitrogen, helium, etc., especially an inert gas.

[0041] Because the cooling channel 110 of the embodiment of the present application is distributed in at least two layers along the radial direction of the housing 100, the configuration of the medium inlet and outlet of the housing 100 will enable the cooling medium to obtain different conveying paths and achieve different cooling effects. For example, see Figure 4 The inlet 100b of the housing 100 (usually corresponding to an inlet joint) is connected to the inner cooling channel 110. The dotted arrows in the figure show that the cooling medium enters from the inlet 100b of the housing 100 and flows in each sub-channel 111 of the inner cooling channel 110. Please refer to Figure 5 The end of the inner cooling channel 110 has an interface with the adjacent outer cooling channel 110. As shown by the dotted arrow in the figure, the cooling medium enters the outer cooling channel 110 from the inner cooling channel 110 and flows along the sub-channel 111. Figure 6 The outlet 100c of the housing 100 (usually corresponding to an outlet joint) is connected to the cooling channel 110 on the outside. As shown by the dotted arrow in the figure, the cooling medium is transported in the cooling channel 110 on the outside to the end point and discharged from the outlet 100c of the housing 100.

[0042] In the embodiment of the present application, the sub-channels 111 in any cooling channel 110 may partially correspond to the sub-channels 111 of the adjacent cooling channel 110 along the radial direction of the housing 100, for example, Figure 2 In the illustrated embodiment, the cooling channel 110 in the inner layer, except for the sub-channel 111 corresponding to the inlet 100b of the casing 100, has other sub-channels 111 that correspond one-to-one to the sub-channels 111 of the cooling channel 110 in the outer layer; of course, the sub-channels 111 of any cooling channel 110 may all correspond one-to-one to the sub-channels 111 of adjacent cooling channels 110 along the radial direction of the casing 100.

[0043] Since adjacent cooling channels 110 are interconnected, cooling medium is injected through the inlet 100 b of the housing 100 , and the same cooling medium can be transported in all cooling channels 110 and finally discharged from the outlet 100 c of the housing 100 .

[0044] Since the cooling channel 110 is distributed in at least two layers along the radial direction of the housing 100, and the sub-channel 111 is a part of the cooling channel 110, the sub-channels 111 of the adjacent cooling channel 110 are also arranged correspondingly along the radial direction of the housing 100, so that the cooling channel 110 is arranged in layers in the radial direction of the housing 100, thereby constructing a larger channel for the circulation of the cooling medium in the same layout space, which obviously can increase the heat exchange area between the cooling medium and the housing 100, that is, improve the cooling performance of the housing 100. In this way, the heat generated when the motor is working can be more effectively exchanged with the cooling medium through the housing 100, and the heat taken away by the cooling medium will be greatly increased to control the temperature rise of the motor, thereby better exerting the performance of the motor.

[0045] In addition, based on the structural layout of the casing 100 of the embodiment of the present application, when the cooling medium flows through the cooling channel 110 on the inner side, heat is mainly exchanged with the inner part of the casing 100 (the main heat source of the motor). At the same time, after the cooling medium flows through the cooling channel 110 on the outer layer, the cooling medium in the radially corresponding sub-channels 111 of the adjacent cooling channel 110 will also exchange heat. That is to say, part of the heat of the cooling medium in the cooling channel 110 on the outer side will be absorbed by the cooling medium in the cooling channel 110 on the inner side (actually the newly transported cooling medium), and the temperature of the cooling medium in the cooling channel 110 on the outer side will be reduced. The heat exchange capacity of the cooling medium is related to its temperature. Therefore, the cooling medium in the cooling channel 110 on the outer side can perform better heat exchange with the nearby parts of the casing 100 after cooling down, thereby making the overall cooling effect of the casing 100 more balanced and optimizing the overall cooling effect of the casing 100.

[0046] It is worth emphasizing that, precisely because the cooling medium near the inner cooling channel 110 can exchange heat with the cooling medium near the outer cooling channel 110, the heat exchange capacity of the cooling medium can be fully utilized to avoid waste of heat exchange capacity.

[0047] The embodiments of the present application do not limit the molding process of the housing 100. For example, the housing 100 can be formed by a stretching process, and of course it can also be formed by extrusion or other machining processes. Figure 1 As shown, the housing 100 further includes an end cover 100a disposed at an axial end, and the end cover 100a is used to block the cooling channel 110 in the main body of the housing 100. Of course, in other embodiments, the housing 100 may not include the end cover 100a.

[0048] In the embodiment of the present application, the distribution direction of the sub-channels 111 is not limited. Figure 2~Figure 6As shown, the sub-channel 111 can be distributed along the axial direction of the casing 100; or, the extension path of the sub-channel 111 intersects with the axis of the casing 100. For example, when the extension path of the sub-channel 111 intersects with the axis of the casing 100, it is equivalent to being arranged along the circumferential direction of the casing 100.

[0049] In some embodiments, Figure 2 and Figure 3 As shown, the inlet 100b of the casing 100 is connected to the cooling channel 110 in the innermost layer, and the outlet 100c of the casing 100 is connected to the cooling channel 110 in the outermost layer; in two adjacent layers of cooling channels 110, along the circumference of the casing 100, the width L1 of the sub-channel 111 in the inner layer is smaller than the width L2 of the sub-channel 111 in the outer layer.

[0050] It can be understood that when the motor is working, its heat is mainly generated by the internal components, so the closer the part of the housing 100 is to its inner cavity, the higher the heat will be. In this example, the cooling medium first flows through the cooling channel 110 on the inner side. Since its temperature is the lowest at the initial stage of heat exchange, the inner part of the housing 100 will be cooled with the optimal heat exchange capacity, and the cooling effect is better.

[0051] At the same time, since the circumferential width L2 of the sub-channel 111 in the outer layer is greater than the circumferential width L1 of the sub-channel 111 in the inner layer, it is equivalent to increasing the flow area of ​​the sub-channel 111 on the outer side. When the cooling medium flows through the cooling channel 110 on the outer side, the sub-channel 111 on the outer side will have a larger heat exchange area with the cooling medium, and the flow rate of the cooling medium will decrease, thereby compensating for the heat exchange capacity of the cooling medium after the temperature rises, thereby enhancing the cooling effect of the cooling medium on the casing 100.

[0052] In some embodiments, the inlet 100b of the casing 100 is connected to the cooling channel 110 in the outermost layer, and the outlet 100c of the casing 100 is connected to the cooling channel 110 in the innermost layer; in two adjacent layers of cooling channels 110, the width of the sub-channel 111 in the inner layer along the circumferential direction of the casing 100 is greater than the width of the sub-channel 111 in the outer layer along the circumferential direction of the casing 100.

[0053] It should be understood that the cooling medium in this example first flows through the cooling channel 110 near the outer layer, so in the initial stage of heat exchange of the cooling medium and when the temperature is lowest, part of the cooling medium's optimal heat exchange capacity is used to cool the outer part of the casing 100. Therefore, it is suitable for situations where the outside of the motor has higher cooling requirements, such as when the motor's external devices generate more heat and the motor's installation environment temperature is higher.

[0054] Similarly, the circumferential width of the inner sub-channel 111 is larger, which increases the flow area of ​​the inner sub-channel 111. When the cooling medium flows through the inner cooling channel 110, its heat exchange area increases and the flow rate decreases, which can compensate for the heat exchange capacity of the cooling medium after the temperature rises, thereby enhancing the cooling effect of the cooling medium on the housing 100. Of course, it should be noted that even if there is a feature of the width of the sub-channel 111 in adjacent cooling channels 110 in this example, which is larger inside and smaller outside, the cooling channel 110 is still used as a cooling structure in the housing 100, and its heat exchange capacity is still mainly used to cool the inner part of the housing 100 when the cooling medium is initially at a low temperature.

[0055] In some embodiments, along the radial direction of the housing 100, the width of the sub-channel 111 corresponding to the inlet 100b of the housing 100 is greater than the width of the sub-channel 111 connected thereto. Figure 3 As shown, the width of the sub-channel 111 corresponding to the inlet 100b of the housing 100 along the radial direction of the housing 100 is L3, and the width of the sub-channel 111 connected to the sub-channel 111 along the radial direction of the housing 100 is L4, and L3 is greater than L4.

[0056] In this example, the section of the cooling channel 110 near the inlet 100b is equivalent to forming a channel structure with a gradually reduced diameter. Since the flow area is gradually reduced, the cooling medium is accelerated after being sent into the housing 100, so as to speed up the circulation efficiency of the cooling medium in the housing 100, thereby improving the cooling effect. In addition, in the embodiment where the inlet 100b is connected to the inner cooling channel 110, if the heat exchange performance of the cooling medium is insufficient, it can also avoid the situation where the temperature rise is accelerated due to the too slow speed of the cooling medium, making it difficult to implement cooling in the subsequent cooling channel 110 on the outer side.

[0057] In some embodiments, along the radial direction of the housing 100, the width of the sub-channel 111 corresponding to the outlet 100c of the housing 100 is greater than the width of the sub-channel 111 connected thereto. In this example, the section of the cooling channel 110 close to the outlet 100c is equivalent to forming a gradually expanding channel structure. Because the flow area increases, the flow rate of the cooling medium is reduced during the process of being sent out of the housing 100, avoiding a large impact force when being sent out of the housing 100, and at the same time improving the cooling effect by increasing the heat exchange time.

[0058] In some embodiments, Figure 2 and Figure 3As shown, the casing 100 includes an intermediate side wall 120 arranged between adjacent cooling channels 110, and a thickness H1 of the intermediate side wall 120 is smaller than a thickness H2 of an outer side wall 130 on the casing 100 and a thickness H3 of an inner side wall 140 on the casing 100, wherein the outer side wall 130 is a side wall on the casing 100 corresponding to the cooling channel 110 and close to its outer peripheral surface, and the inner side wall 140 is a side wall on the casing 100 corresponding to the cooling channel 110 and close to its inner peripheral surface.

[0059] In this example, such a layout makes the middle side wall 120 between adjacent cooling channels 110 thinner, so that heat exchange between layers of cooling channels 110 can be achieved more easily. That is to say, in the flow path of the cooling medium, the cooling medium in the cooling channel 110 that is relatively closer to the inlet 100b will be more likely to absorb the heat of the cooling medium in the cooling channel 110 that is relatively closer to the outlet 100c. Then, the cooling performance of the cooling medium in the cooling channel 110 that is relatively closer to the outlet 100c will be improved, thereby optimizing the overall cooling effect of the casing 100.

[0060] In some embodiments, the cooling medium in the two corresponding sub-channels 111 along the radial direction of the housing 100 flows in opposite directions. Figure 4 and Figure 6 As shown, the flow directions of the cooling medium in the two layers of sub-flow channels 111 corresponding to the outlet 100 c along the radial direction of the housing 100 are opposite.

[0061] It should be understood that the cooling medium performs heat exchange cooling on the casing 100 in the cooling channel 110, and its temperature gradually rises as the cooling medium is transported, that is, along the flow direction of the cooling medium. Therefore, in this example, the flow directions of the cooling medium in the two sub-channels 111 corresponding to the radial direction of the casing 100 are set to be opposite, so the temperature distribution gradients of the two are opposite, and the temperature is inversely proportional to the cooling effect. Therefore, such a structural layout can make the cooling effects of the cooling medium compensate each other between the cooling channels 110 of different layers, so as to achieve a more balanced cooling effect in the radial direction of the casing 100.

[0062] Of course, the embodiment of the present application does not limit the flow direction of the cooling medium in each sub-channel 111, and the cooling medium in two corresponding sub-channels 111 along the radial direction of the housing 100 can also have the same flow direction.

[0063] In some embodiments, Figure 2 As shown, the housing 100 has a partition 150 disposed between two adjacent sub-channels 111 in the cooling channel 110, and the partition 150 is used to separate the two adjacent sub-channels 111; in two adjacent layers of cooling channels 110, the partitions 150 are arranged one by one along the radial direction of the housing 100.

[0064] It should be understood that the casing 100 of the embodiment of the present application forms a cooling channel 110 in a similar laminated form in its radial direction, which places higher requirements on the strength of the casing 100. In this example, the partitions 150 in the adjacent cooling channels 110 are correspondingly arranged along the radial direction of the casing 100, so that the corresponding partitions 150 are equivalent to being connected to each other in the radial direction of the casing 100, and the partitions 150 can be connected from the inner wall of the casing 100 to its outer wall. The space occupied by the cooling channel 110 does not affect the overall solid structure formed by these partitions 150, so the partitions 150 correspondingly distributed in the radial direction of the casing 100 are equivalent to a reinforcement structure with a large cross-sectional area, which reinforces the strength of the casing 100 and can effectively compensate and improve the damage resistance of the casing 100.

[0065] In some embodiments, Figure 2 As shown, the housing 100 further includes a connecting notch 160 disposed at one end of the partition 150 , and the connecting notch 160 is used to connect two adjacent sub-channels 111 ; in the corresponding partitions 150 in the radial direction of the housing 100 , the connecting notches 160 are all disposed at the same end of the corresponding partitions 150 .

[0066] It should be understood that in the housing 100 disclosed in the embodiment of the present application, all cooling channels 110 convey the same cooling medium, so it is not convenient to separately control the temperature, flow rate, etc. of the cooling channels 110 at different layers. In this example, because the connecting notches 160 are all arranged at the same end of the radially corresponding partitions 150, the cooling medium in the cooling channels 110 at different layers can achieve heat exchange in the area of ​​the connecting notches 160, increasing the heat of the cooling medium in the inner cooling channel 110 from the cooling medium in the outer cooling channel 110, improving the heat exchange performance of the cooling medium in the outer cooling channel 110, thereby improving the balance of the overall cooling effect of the housing 100 and avoiding the waste of the heat exchange performance of the cooling medium in the inner cooling channel 110.

[0067] In some embodiments, Figure 2 and Figure 3 As shown, the casing 100 has a partition 150 arranged between two adjacent sub-channels 111 in the cooling channel 110, and the partition 150 is used to isolate the two adjacent sub-channels 111; the casing 100 has a first reinforcement structure 170 arranged on its outer peripheral surface, and the first reinforcement structure 170 is connected to at least one partition 150 of the adjacent cooling channel 110.

[0068] As mentioned above, the housing 100 of the embodiment of the present application has certain requirements for strength, and the first reinforcement structure 170 can improve the overall strength of the housing 100. At the same time, because the first reinforcement structure 170 is arranged on the outer peripheral surface of the housing 100, it will not occupy the internal space of the housing 100, so it is also convenient for layout. In this example, the first reinforcement structure 170 is connected to the partition 150, and the two can be used as an integral reinforcement structure, and the size of the physical structure is larger, so the strength of the housing 100 can be improved.

[0069] In some embodiments, the housing 100 has a partition 150 disposed between two adjacent sub-channels 111 in the cooling channel 110, and the partition 150 is used to separate the two adjacent sub-channels 111; the housing 100 has a second reinforcement structure (not shown in the drawings) disposed on its inner circumference, and the second reinforcement structure is connected to at least one partition 150 of the adjacent cooling channel 110. In this example, the second reinforcement structure is connected to the partition 150, and the two can be used as an integral reinforcement structure, and the size of the physical structure is larger, which can also improve the strength of the housing 100. Furthermore, the second reinforcement structure can be constructed as a mounting structure for internal components of the motor, and the internal components of the motor are installed by forming a mounting position.

[0070] In the above embodiment where the housing 100 includes the first reinforcement structure 170, Figure 2 and Figure 3 As shown, the housing 100 includes a first reinforcing structure 170 as a mounting platform, which is used to set the inlet 100b and the outlet 100c of the housing 100. Along the circumference of the housing 100, both ends of the mounting platform are connected to a partition 150 respectively.

[0071] It should be understood that the setting of the inlet 100b and the outlet 100c on the housing 100 will lead to a reduction in the strength of the corresponding parts. At the same time, the inlet 100b and the outlet 100c on the housing 100 are parts that are connected to the pipeline and will also be subjected to force during assembly or the use of the motor, so there will be a certain risk of damage. In this example, the mounting platform on which the inlet 100b and the outlet 100c are set belongs to the first reinforcement structure 170, and its strength is already high, which can reduce the risk of damage; at the same time, the two ends of the mounting platform are also connected to the partition 150 respectively, and the mounting platform and the corresponding partition 150 can form a larger reinforcement structure, thereby improving the overall strength, to further reduce the risk of damage to the parts of the housing 100 where the inlet 100b and the outlet 100c are set, that is, to achieve the effect of improving the damage resistance of the housing 100.

[0072] See also Figure 1 to Figure 6Some embodiments of the present application provide a motor, which includes the motor housing 100 mentioned in any of the above schemes. In this way, the motor disclosed in the embodiments of the present application has the beneficial effects of the above housing 100, which will not be repeated. Among them, the type of motor is not limited in the embodiments of the present application. For example, the motor can be a magnetic suspension motor or a contact motor; it can also be an AC or DC motor; it can also be a brushless or brushed motor.

[0073] See also Figure 1 to Figure 6 , some embodiments of the present application provide a rotating device, which includes the motor mentioned in the above scheme. In this way, the rotating device disclosed in the embodiments of the present application has the beneficial effects of the above motor, which will not be repeated. It should be understood that the rotating device is a device that uses the above motor to achieve rotational drive, and its type is not limited. For example, the rotating device can be an air compressor, machining equipment such as a milling cutter, and medical equipment such as a magnetic levitation stirrer.

[0074] The above embodiments of the present application focus on describing the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0075] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A motor housing, characterized in that: The housing has at least two layers of cooling channels distributed along its radial direction, and the adjacent cooling channels are interconnected to transport the same cooling medium in the at least two layers of cooling channels; The cooling channels each include a plurality of sub-channels that are interconnected. In any cooling channel, at least part of the sub-channels are arranged in one-to-one correspondence with the sub-channels of adjacent cooling channels along the radial direction of the housing.

2. The housing according to claim 1, characterized in that: The inlet of the housing is communicated with the cooling channel in the innermost layer, and the outlet of the housing is communicated with the cooling channel in the outermost layer; in two adjacent layers of cooling channels, along the circumference of the housing, the width of the sub-channel in the inner layer is smaller than the width of the sub-channel in the outer layer; Alternatively, the inlet of the casing is connected to the cooling channel in the outermost layer, and the outlet of the casing is connected to the cooling channel in the innermost layer; in two adjacent layers of cooling channels, the width of the sub-channel in the inner layer along the circumferential direction of the casing is greater than the width of the sub-channel in the outer layer along the circumferential direction of the casing.

3. The housing according to claim 1, characterized in that: Along the radial direction of the casing, the width of the sub-channel corresponding to the inlet of the casing is greater than the width of the sub-channel connected thereto; and / or, along the radial direction of the casing, the width of the sub-channel corresponding to the outlet of the casing is greater than the width of the sub-channel connected thereto.

4. The housing according to claim 1, characterized in that: The housing includes an intermediate side wall disposed between adjacent cooling channels, wherein the thickness of the intermediate side wall is smaller than the thickness of the outer side wall on the housing and the thickness of the inner side wall on the housing, wherein the outer side wall is a side wall on the housing corresponding to the cooling channel and close to the outer peripheral surface thereof, and the inner side wall is a side wall on the housing corresponding to the cooling channel and close to the inner peripheral surface thereof; And / or, the cooling medium in the two corresponding sub-flow channels along the radial direction of the housing flows in opposite directions.

5. The housing according to any one of claims 1 to 4, characterized in that: The housing has a partition provided between two adjacent sub-channels in the cooling channel, and the partition is used to separate the two adjacent sub-channels; in two adjacent layers of the cooling channel, the partitions are provided in a one-to-one correspondence along the radial direction of the housing.

6. The housing according to claim 5, characterized in that: The housing further comprises a connection notch arranged at one end of the partition, and the connection notch is used to connect two adjacent sub-channels; in the partitions corresponding to each other in the radial direction of the housing, the connection notches are all arranged at the same end of the corresponding partitions.

7. The housing according to any one of claims 1 to 4, characterized in that: The housing has a partition provided between two adjacent sub-channels in the cooling channel, and the partition is used to separate the two adjacent sub-channels; wherein: The housing has a first reinforcement structure disposed on its outer peripheral surface, and the first reinforcement structure is connected to at least one of the partitions of the adjacent cooling channel; And / or, the housing has a second reinforcement structure disposed on an inner circumferential surface thereof, and the second reinforcement structure is connected to at least one of the partitions of the adjacent cooling channels.

8. The housing according to claim 7, characterized in that: The housing includes the first reinforcing structure as a mounting platform, and the mounting platform is used to set the inlet and outlet of the housing. Along the circumference of the housing, both ends of the mounting platform are respectively connected to one of the partitions.

9. A motor, characterized in that: A casing comprising the motor according to any one of claims 1 to 8.

10. A rotating device, characterized in that: A motor comprising the motor described in claim 9.

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