Casing, motor and robot

Abstract

The utility model discloses a casing, a motor and a robot, the casing comprises a first casing and a second casing, the first casing is sleeved on the outer surface of the second casing, and an air flow channel connected with the outside is formed between the first casing and the second casing; the first end cover is arranged at the end part of the first shell, an air inlet is formed in the first end cover, and the air inlet is communicated with the airflow channel; the second end cover is arranged at the end part of the second shell, the second end cover comprises a first surface, and the first surface faces the first end cover; and the heat dissipation fan is arranged on the first surface. According to the technical scheme, the heat dissipation fan and the airflow channel are integrated in the machine shell, and compared with an independently-arranged heat dissipation mechanism, the cooling effect is better.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electric machines, and particularly relates to a machine shell, an electric machine and a robot. BACKGROUND

[0002] When the electric machine is working, a circuit board and a stator assembly generate a large amount of heat. When the temperature of the circuit board and the assembly is high, the performance of the electric machine is affected, and even permanent failure of the circuit board or the stator assembly is caused.

[0003] In the prior art, especially for a joint electric machine applied to a robot, the joint electric machine is usually cooled by natural cooling or by installing a cooling device on a skeleton of the robot. If the joint electric machine is cooled by natural cooling, the cooling efficiency is low. If the cooling device is installed on the skeleton of the robot, an effective air flow channel cannot be formed, so that the cooling efficiency is low and the cooling effect is not ideal. CONTENT OF THE UTILITY MODEL

[0004] The application aims to provide a machine shell, an electric machine and a robot.

[0005] According to a first aspect of the application, a machine shell is provided, comprising:

[0006] a first shell and a second shell, the first shell is sleeved on an outer surface of the second shell, and an air flow channel connected to an external environment is formed between the first shell and the second shell;

[0007] a first end cover, the first end cover is arranged at an end of the first shell, the first end cover is provided with an air inlet, and the air inlet is in communication with the air flow channel;

[0008] a second end cover, the second end cover is arranged at an end of the second shell, the second end cover comprises a first surface, and the first surface faces the first end cover;

[0009] a cooling fan, the cooling fan is arranged on the first surface.

[0010] Optionally, the machine shell further comprises a first cooling assembly, and the first cooling assembly is arranged on the first surface.

[0011] The first cooling assembly comprises a plurality of first cooling fins, the plurality of first cooling fins are arranged at intervals in a circumferential direction of the cooling fan, and adjacent two first cooling fins form an air flow channel.

[0012] Optionally, the first cooling fin comprises a first end and a second end, and a line between the first end and the second end intersects with a center point of the second end cover; or

[0013] The first heat dissipation fin comprises a first end and a second end, the second end cover comprises a center point and an edge, a line between the first end and the second end and a line between the center point and the edge intersect to form an intersection point, and the intersection point is not coincident with the center point.

[0014] Optionally, the first heat dissipation fin is made of a heat-conductive metal material.

[0015] Optionally, the shell further comprises a second heat dissipation assembly, the second heat dissipation assembly is arranged on an outer surface of the second shell body and located in the air flow channel.

[0016] The second heat dissipation assembly comprises a plurality of second heat dissipation fins, the plurality of second heat dissipation fins are arranged at intervals in a circumferential direction of the second shell body, the second heat dissipation fins are in abutment with the inner surface of the first shell body, and a sub-air flow channel is formed between adjacent two second heat dissipation fins.

[0017] Optionally, the second heat dissipation fin is made of a heat-conductive metal material.

[0018] Optionally, the shell further comprises a third heat dissipation assembly, the third heat dissipation assembly is arranged on the inner surface of the first shell body.

[0019] The third heat dissipation assembly comprises a plurality of third heat dissipation fins, the plurality of third heat dissipation fins are arranged at intervals in a circumferential direction of the first shell body, and one third heat dissipation fin is located in one sub-air flow channel.

[0020] Optionally, the third heat dissipation fin is made of a heat-conductive metal material.

[0021] Optionally, the second end cover comprises a second surface, the second surface is arranged opposite to the first surface, and the second surface is provided with a mounting boss.

[0022] Optionally, the first end cover is provided with a first through hole; and / or

[0023] The first shell body is provided with a second through hole.

[0024] According to a second aspect of the embodiments of the present application, a motor is provided, comprising:

[0025] The shell described above;

[0026] A circuit board, the circuit board is arranged on the mounting boss of the second end cover.

[0027] Optionally, the motor further comprises a stator assembly, the stator assembly is arranged in the interior of the second shell body.

[0028] Optionally, the motor further comprises a temperature sensor, the temperature sensor is arranged in the interior of the second shell, the temperature sensor is in communication connection with the circuit board, and the circuit board is in communication connection with the cooling fan.

[0029] According to a third aspect of the embodiments of the present application, a robot is provided, comprising the motor described above.

[0030] One technical effect of the embodiments of the present application is that the cooling fan and the air flow channel are integrated in the interior of the shell, and compared with the separately arranged cooling mechanism, the cooling effect is better.

[0031] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the following drawings. BRIEF DESCRIPTION OF DRAWINGS

[0032] The accompanying drawings incorporated in and forming a part of the specification illustrate embodiments of the present application and, together with the description, serve to explain the principles of the present application.

[0033] Figure 1 is a structural schematic view of the shell in the embodiments of the present application;

[0034] Figure 2 is a sectional view of the shell in the embodiments of the present application;

[0035] Figure 3 is a structural schematic view of the shell in the embodiments of the present application;

[0036] Figure 4 is a structural schematic view of the shell in the embodiments of the present application;

[0037] Figure 5 is a structural schematic view of the second end cover and the cooling fan in the embodiments of the present application;

[0038] Figure 6 is a structural schematic view of the second end cover in the embodiments of the present application;

[0039] Figure 7 is a structural schematic view of the second shell in the embodiments of the present application;

[0040] Figure 8 is a structural schematic view of the first shell in the embodiments of the present application;

[0041] Figure 9 is a structural schematic view of the second end cover in the embodiments of the present application;

[0042] Figure 10 is a structural schematic view of the motor in the embodiments of the present application;

[0043] Figure 11A sectional view of a motor in an embodiment of the present application;

[0044] Figure 12 A structural schematic view of a second end cover and a circuit board in an embodiment of the present application.

[0045] Legend: housing 100; first shell 1; first cavity 11; second shell 2; second cavity 21; first end cover 3; air inlet 31; second end cover 4; first surface 41; second surface 42; mounting boss 43; mounting shaft 44; cooling fan 5; first cooling assembly 6; first cooling fin 61; first end 611; second end 612; flow guide channel 62; second cooling assembly 7; second cooling fin 71; third cooling assembly 8; third cooling fin 81; air flow channel a; sub-air flow channel a-1; motor 200; circuit board 9. DETAILED DESCRIPTION

[0046] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of the components and steps set forth in the examples, the numerical expressions, and the numerical values are not limiting to the scope of the present application unless otherwise specifically stated.

[0047] The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the scope of the application, its application, or uses.

[0048] Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail herein. However, the techniques, methods, and devices are further explained in connection with the description of the exemplary embodiments.

[0049] In all of the examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not limiting. Thus, other examples of the exemplary embodiments can have different values.

[0050] It should be noted that like numbers and letters refer to like items throughout the following drawings, and thus, once an item is defined in one drawing, it is not necessary that it be further discussed in the remaining drawings.

[0051] As Figures 1-9As shown, according to the first aspect of the embodiments of the present application, a casing 100 is provided, comprising a first shell 1, a second shell 2, a first end cover 3, a second end cover 4 and a cooling fan 5; the first shell 1 is sleeved on the outer surface of the second shell 2, and an airflow passage a connecting the outside is formed between the first shell 1 and the second shell 2; the first end cover 3 is arranged at the end of the first shell 1, and the first end cover 3 is provided with an air inlet 31, which is in communication with the airflow passage a; the second end cover 4 is arranged at the end of the second shell 2, and the second end cover 4 comprises a first surface 41 facing the first end cover 3; the cooling fan 5 is arranged on the first surface 41.

[0052] The casing 100 of the present application can be used in the motor 200 as the shell of the motor 200, and can also be used in other mechanisms requiring heat dissipation as the shell. The present application does not limit this.

[0053] The present application takes the casing 100 as the shell of the motor 200 as an example for description.

[0054] The casing 100 comprises a first shell 1, a second shell 2, a first end cover 3, a second end cover 4 and a cooling fan 5.

[0055] As Figure 1 and Figure 2 shown, the first shell 1 is in a cylindrical shape, and a first cavity 11 is formed in the inside of the first shell 1; the second shell 2 is located in the first cavity 11, and it can be understood that the first shell 1 is sleeved on the outer surface of the second shell 2, and there is a gap between the inner surface of the first shell 1 and the outer surface of the second shell 2, so that an airflow passage a is formed between the first shell 1 and the second shell 2, and the airflow passage a is in communication with the outside.

[0056] The inside of the second shell 2 is formed with a second cavity 21, and the stator assembly, the rotor assembly and other components of the motor 200 are arranged in the second cavity 21.

[0057] Further, the first end cover 3 is arranged at the end of the first shell 1, and the first end cover 3 is provided with an air inlet 31; the second end cover 4 is arranged at the end of the second shell 2 to seal the end to avoid impurities from the outside entering the second cavity 21; the second end cover 4 comprises a first surface 41 facing the first end cover 3, and it can also be understood that the first surface 41 faces away from the second cavity 21; the cooling fan 5 is arranged on the first surface 41 of the first end cover 3, and specifically, the first end cover 3 is provided with a mounting shaft 44, the cooling fan 5 is rotationally connected with the mounting shaft 44, and the cooling fan 5 can rotate around its own axis.

[0058] The first end cover 3 is arranged at the end of the first shell 1, the second end cover 4 is arranged at the end of the second shell 2, and a complete air guide space is formed between the inner surface of the first shell 1, the inner surface of the first end cover 3, the outer surface of the second shell 2 and the first surface 41 of the second end cover 4. When the cooling fan 5 rotates, the external airflow enters the air guide space through the air inlet 31 and can be guided to flow along the first shell 1, the second shell 2 and the first surface 41, and finally flows out through the airflow passage a, thereby cooling the motor 200 components in the second cavity 21 and achieving the cooling function.

[0059] In the present application, the cooling fan 5 and the airflow passage a are integrated in the inside of the shell 100, and the cooling effect is better than that of the separately arranged cooling mechanism.

[0060] In a preferred embodiment, the second shell 2 is made of aluminum alloy, and the second end cover 4 is made of aluminum alloy, which can improve the cooling effect.

[0061] In an alternative embodiment, the shell 100 further comprises a first cooling assembly 6 arranged on the first surface 41; the first cooling assembly 6 comprises a plurality of first cooling fins 61, and the plurality of first cooling fins 61 are arranged at intervals around the circumference of the cooling fan 5, and adjacent two first cooling fins 61 form a flow guide passage 62.

[0062] As shown in Figure 3 and Figure 4 The shell 100 further comprises a first cooling assembly 6 arranged on the first surface 41; specifically, the first cooling assembly 6 comprises a plurality of first cooling fins 61, and the plurality of first cooling fins 61 are arranged at intervals around the circumference of the cooling fan 5, and adjacent two first cooling fins 61 form a flow guide passage 62, so that a plurality of flow guide passages 62 are formed on the first surface 41 of the first end cover 3, and the flow guide passages 62 are communicated with the airflow passage a; when the cooling fan 5 rotates, the airflow can flow into the airflow passage a along the flow guide passages 62 and flow out through the airflow passage a. By arranging the flow guide passages 62, the flow path of the airflow in the inside of the shell 100 can be prolonged, the heat exchange surface is increased, and stronger cooling performance is provided for the motor 200.

[0063] In a specific embodiment, the axis of the air inlet 31 is parallel to the axis of the mounting shaft 44, and the extension line of the flow guide passage 62 intersects the axis of the mounting shaft 44; the cooling fan 5 is a centrifugal fan, and the air enters the cooling fan 5 along the axis of the mounting shaft 44 and then blows out along the radial direction of the mounting shaft 44, so that the air can enter the cooling fan 5 at the air inlet 31 and blow towards the flow guide passage 62.

[0064] In an alternative embodiment, the first fins 61 comprise a first end 611 and a second end 612, and a line between the first end 611 and the second end 612 intersects a center point of the second end cover 4; or

[0065] The first fins 61 comprise a first end 611 and a second end 612, and the second end cover 4 comprises a center point and an edge, a line between the first end 611 and the second end 612 intersects a line between the center point and the edge to form an intersection point, and the intersection point is not coincident with the center point.

[0066] In a specific embodiment, as shown in Figure 5 The first fins 61 comprise a first end 611 and a second end 612, and a line between the first end 611 and the second end 612 intersects a center point of the second end cover 4; specifically, the first end 611, the second end 612 and the center point are located on the same straight line; in this embodiment, the first fins 61 are easy to process and install, thereby reducing the processing and installation difficulty of the first heat dissipation assembly 6.

[0067] In another specific embodiment, as shown in Figure 6 The first fins 61 comprise a first end 611 and a second end 612; the second end cover 4 comprises a center point and an edge, and a line between the first end 611 and the second end 612 intersects a line between the center point and the edge to form an intersection point, and the intersection point is not coincident with the center point; specifically, the line between the center point and the edge of the second end cover 4 refers to a line between any point of the edge of the second end cover 4 and the center point; the line between the first end 611 and the second end 612 intersects the line between the center point and the edge, and the intersection point is not coincident with the center point; it can be understood that the line between the first end 611 and the second end 612 and the line between the center point and the edge form an included angle, so that the flow guide channel 62 formed between the two adjacent first fins 61 has an inclination angle; when the heat dissipation fan 5 rotates, the airflow direction guided by the heat dissipation fan 5 has a certain inclination angle, and the flow guide channel 62 in this embodiment is adapted to the direction of the airflow, thereby improving the flow speed of the airflow to improve the heat exchange effect. In this embodiment, the first fins 61 are curved or straight.

[0068] In the embodiment, when the radial section of the second end cover 4 is circular, the center point is the center of the circle; when the radial section of the second end cover 4 is rectangular, the center point is the intersection point of the diagonal lines.

[0069] In an alternative embodiment, the first fins 61 are made of heat-conducting metal material; thereby improving the heat dissipation performance of the first fins 61. In the embodiment, the heat-conducting metal material can be made of aluminum material or copper material, and preferably made of aluminum material.

[0070] In the embodiment, the first fins 61 are made of heat-conducting metal material; thereby improving the heat dissipation performance of the first fins 61. In the embodiment, the heat-conducting metal material can be made of aluminum material or copper material, and preferably made of aluminum material. Figure 3And Figure 7 As shown in the optional embodiment, the casing 100 further comprises a second heat dissipation assembly 7, which is arranged on the outer surface of the second shell 2 and located in the airflow passage a; the second heat dissipation assembly 7 comprises a plurality of second heat dissipation fins 71, which are arranged at intervals around the circumference of the second shell 2, and the second heat dissipation fins 71 abut the inner surface of the first shell 1, and the sub-airflow passage a-1 is formed between adjacent two second heat dissipation fins 71.

[0071] Specifically, the second heat dissipation assembly 7 is arranged on the outer surface of the second shell 2 and located in the airflow passage a, so that when the airflow passes through the airflow passage a, the second heat dissipation assembly 7 can increase the heat exchange area, thereby enhancing the heat dissipation effect.

[0072] As shown in the optional embodiment, the casing 100 further comprises a second heat dissipation assembly 7, which is arranged on the outer surface of the second shell 2 and located in the airflow passage a; the second heat dissipation assembly 7 comprises a plurality of second heat dissipation fins 71, which are arranged at intervals around the circumference of the second shell 2, and the second heat dissipation fins 71 abut the inner surface of the first shell 1, and the sub-airflow passage a-1 is formed between adjacent two second heat dissipation fins 71. Figure 3 Figure 7 As shown in the optional embodiment, the casing 100 further comprises a second heat dissipation assembly 7, which is arranged on the outer surface of the second shell 2 and located in the airflow passage a; the second heat dissipation assembly 7 comprises a plurality of second heat dissipation fins 71, which are arranged at intervals around the circumference of the second shell 2, and the second heat dissipation fins 71 abut the inner surface of the first shell 1, and the sub-airflow passage a-1 is formed between adjacent two second heat dissipation fins 71.

[0073] In an optional embodiment, the second heat dissipation fins 71 are made of heat-conducting metal material; thereby improving the heat dissipation performance of the second heat dissipation fins 71. The heat-conducting metal material can be made of aluminum material or copper material, preferably aluminum material.

[0074] In an optional embodiment, the casing 100 further comprises a third heat dissipation assembly 8, which is arranged on the inner surface of the first shell 1; the third heat dissipation assembly 8 comprises a plurality of third heat dissipation fins 81, which are arranged at intervals around the circumference of the first shell 1, and one third heat dissipation fin 81 is located in one sub-airflow passage a-1.

[0075] As shown in the optional embodiment, the casing 100 further comprises a third heat dissipation assembly 8, which is arranged on the inner surface of the first shell 1, and the third heat dissipation assembly 8 and the first shell 1 can be integrally arranged. Figure 3 Figure 8 As shown in the optional embodiment, the casing 100 further comprises a third heat dissipation assembly 8, which is arranged on the inner surface of the first shell 1, and the third heat dissipation assembly 8 and the first shell 1 can be integrally arranged.

[0076] ​​Further, the third heat dissipation assembly 8 comprises a plurality of third heat dissipation fins 81, the plurality of third heat dissipation fins 81 are arranged at intervals around the circumference of the first shell 1, the length direction of the third heat dissipation fin 81 is the same as the axial direction of the first shell 1, and the width direction of the third heat dissipation fin 81 is the same as the radial direction of the first shell 1; one third heat dissipation fin 81 is located in one sub-air flow channel a-1, and it can be understood that the third heat dissipation fin 81 is located between two adjacent second heat dissipation fins 71, so as to further reduce the area of the sub-air flow channel a-1, thereby improving the flow speed of the air flow, and improving the heat dissipation effect.

[0077] In this embodiment, the third heat dissipation fin 81 is arranged on the first shell 1, which reduces the area of the air flow channel a, and does not need to process the second heat dissipation fin 71 on the second shell 2, nor need to process the third heat dissipation fin 81 on the first shell 1, thereby reducing the processing difficulty of the second heat dissipation assembly 7 and the third heat dissipation assembly 8.

[0078] In an alternative embodiment, the third heat dissipation fin 81 is made of a heat-conducting metal material, thereby improving the heat dissipation performance of the third heat dissipation fin 81. The heat-conducting metal material can be made of aluminum or copper, and preferably made of aluminum.

[0079] In an alternative embodiment, as shown in Figure 9 The second end cover 4 comprises a second surface 42 opposite to the first surface 41, and the second surface 42 is provided with a mounting boss 43; specifically, the second surface 42 faces the second cavity 21, and the mounting boss 43 provided on the second surface 42 is used to mount the circuit board 9. Since the heat resistance of the circuit board 9 is poor, arranging it on the second end 612 surface close to the first heat dissipation assembly 6 can improve the heat dissipation effect of the circuit board 9.

[0080] In an alternative embodiment, the first end cover 3 is provided with a first through hole; and / or the first shell 1 is provided with a second through hole.

[0081] In a specific embodiment, the first end cover 3 is provided with a first through hole.

[0082] In another specific embodiment, the first shell 1 is provided with a second through hole.

[0083] In another specific embodiment, the first end cover 3 is provided with a first through hole, and the first shell 1 is provided with a second through hole. This embodiment will be described as an example.

[0084] Specifically, by providing the first through hole and the second through hole, the air flow resistance in the casing 100 can be reduced, the air volume of the heat dissipation fan 5 can be improved, and the reliability requirement of the heat dissipation fan 5 can also be reduced.

[0085] According to a second aspect of the present application, there is provided an electric motor 200 comprising the above-mentioned casing 100 and the circuit board 9; the circuit board 9 is arranged on the mounting boss 43 of the second end cover 4.

[0086] As shown in Figures 10-12 , the electric motor 200 comprises the casing 100 and the circuit board 9; wherein the mounting boss 43 is arranged on the second surface 42 of the second end cover 4, and the circuit board 9 is arranged on the mounting boss 43; since the circuit board 9 has poor heat resistance, arranging the circuit board 9 on the second surface 42 and close to the first heat dissipation assembly 6 can improve the heat dissipation effect on the circuit board 9; the circuit board 9 and the mounting boss 43 can be adhered by heat-conducting glue, thereby improving the heat dissipation effect on the circuit board 9.

[0087] In an alternative embodiment, the electric motor 200 comprises a stator assembly arranged inside the second casing 2.

[0088] As shown in Figure 11 , the second casing 2 has a second cavity formed inside, and the stator assembly is arranged in the second cavity; the second heat dissipation assembly 7 is arranged on the second casing 2, and the position of the second heat dissipation assembly 7 corresponds to the position of the stator assembly, thereby improving the heat dissipation effect on the stator assembly through the second heat dissipation assembly 7.

[0089] In an alternative embodiment, the electric motor 200 further comprises a temperature sensor arranged inside the second casing 2, the temperature sensor is in communication connection with the circuit board 9, and the circuit board 9 is in communication connection with the heat dissipation fan 5; the temperature sensor is arranged inside the second casing 2 to monitor the temperature inside the second casing 2; the temperature sensor is in communication connection with the circuit board 9, and the circuit board 9 is in communication connection with the heat dissipation fan 5; the temperature sensor can transmit the detected signal to the circuit board 9, and the circuit board 9 controls the rotating speed of the heat dissipation fan 5 according to the temperature detected by the temperature sensor, so that the heat dissipation fan 5 has different rotating speeds at different temperatures, thereby improving the service life of the heat dissipation fan 5.

[0090] According to a third aspect of the present application, there is provided a robot comprising the above-mentioned electric motor 200.

[0091] Although some specific embodiments of the present application have been described in detail by examples, those skilled in the art should understand that the above examples are only for illustration, but not for limiting the scope of the present application. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A housing, characterized by The machine shell comprises: a first shell and a second shell, the first shell is sleeved on the outer surface of the second shell, and an air flow channel connected to the outside is formed between the first shell and the second shell; a first end cover is arranged at the end of the first shell, and the first end cover is provided with an air inlet which is in communication with the air flow channel; a second end cover is arranged at the end of the second shell, the second end cover comprises a first surface, and the first surface faces the first end cover; a heat dissipation fan is arranged on the first surface.

2. The housing of claim 1, wherein The machine shell further comprises a first heat dissipation assembly arranged on the first surface. The first heat dissipation assembly comprises a plurality of first heat dissipation fins, and the plurality of first heat dissipation fins are arranged at intervals in the circumferential direction of the heat dissipation fan, and adjacent two first heat dissipation fins form a flow guide channel.

3. The enclosure of claim 2, wherein, The first heat dissipation fin comprises a first end and a second end, and the line between the first end and the second end intersects with the center point of the second end cover; or The first heat dissipation fin comprises a first end and a second end, the second end cover comprises a center point and an edge, the line between the first end and the second end and the line between the center point and the edge intersect to form an intersection point, and the intersection point does not coincide with the center point.

4. The enclosure of claim 2, wherein, The first heat dissipation fin is made of heat-conducting metal material.

5. The enclosure of claim 1, wherein, The machine shell further comprises a second heat dissipation assembly arranged on the outer surface of the second shell and located in the air flow channel. The second heat dissipation assembly comprises a plurality of second heat dissipation fins, and the plurality of second heat dissipation fins are arranged at intervals in the circumferential direction of the second shell, the second heat dissipation fins abut against the inner surface of the first shell, and adjacent two second heat dissipation fins form a sub-air flow channel.

6. The enclosure of claim 5, wherein, The second heat dissipation fin is made of heat-conducting metal material.

7. The enclosure of claim 5, wherein, The machine shell further comprises a third heat dissipation assembly arranged on the inner surface of the first shell. The third heat dissipation assembly comprises a plurality of third heat dissipation fins, and the plurality of third heat dissipation fins are arranged at intervals in the circumferential direction of the first shell, and one third heat dissipation fin is located in one sub-air flow channel.

8. The enclosure of claim 7, wherein, The third heat dissipation fin is made of metal material.

9. The enclosure of claim 1, wherein, The second end cover comprises a second surface opposite to the first surface, and the second surface is provided with a mounting boss.

10. The enclosure of claim 1, wherein, The first end cover is provided with a first through hole; and / or The first shell is provided with a second through hole.

11. An electric machine characterized by The machine shell comprises: The machine shell of any one of claims 1-10; a circuit board arranged on the mounting boss of the second end cover.

12. The electric machine of claim 11, wherein, The motor further comprises a stator assembly arranged in the interior of the second shell.

13. The electric machine of claim 11, wherein, The motor further comprises a temperature sensor arranged in the interior of the second shell, the temperature sensor is in communication connection with the circuit board, and the circuit board is in communication connection with the heat dissipation fan.

14. A robot, characterized in that The motor of any one of claims 11-13.

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