An electric machine

Abstract

A motor comprises a housing, a rotating shaft, a rotor assembly, a stator assembly and an output assembly. The housing comprises a ring-shaped casing and a fixed end cover connected with a first port of the ring-shaped casing. The rotating shaft is arranged in the housing. The rotor assembly is arranged outside the rotating shaft and can drive the rotating shaft to rotate. The stator assembly is in rotational connection with the rotating shaft. The output assembly comprises an output end cover, a guide member and a connecting member. The output end cover is rotatably arranged at a second port of the ring-shaped casing. The output end cover is directly or indirectly connected with the rotating shaft. The guide member is in rotational connection with the fixed end cover. The connecting member is connected with the output end cover and the guide member at two ends respectively. The connecting member is used for connecting with a load.

Description

Technical Field

[0001] This application relates to the field of motor technology, and more particularly to a motor. Background Technology

[0002] Miniature motors are the core driving components of automated grasping equipment such as dexterous hands and precision robotic arms. Their structural stability and strength directly determine the working performance and service life of precision grasping equipment.

[0003] Currently, the connection structure between the output end of a micro motor and the external load in existing technologies for dexterous hands generally adopts a single-sided support structure. For example, the output connection structure of existing micro motors only completes the load-bearing and force transmission through one side of the motor output end. During operation, when the load is heavy, the connection point between the motor output end and the external load will bear a large concentrated load. Under long-term continuous heavy load and reciprocating force conditions, the single-sided support connection structure cannot effectively distribute and relieve the stress at the connection point, which can easily cause problems such as deformation and loosening of the motor output connection point. Utility Model Content

[0004] This application addresses the shortcomings of the prior art by providing a motor, comprising: a housing including an annular shell and a fixed end cover, the fixed end cover being connected to a first port of the annular shell; a rotating shaft disposed within the housing; a rotor assembly sleeved on the outside of the rotating shaft, the rotor assembly being capable of driving the rotating shaft to rotate; a stator assembly rotatably connected to the rotating shaft; and an output assembly including an output end cover, a guide member, and a connector, the output end cover being rotatably disposed at a second port of the annular shell, the output end cover being directly or indirectly connected to the rotating shaft, the guide member being rotatably connected to the fixed end cover, and the two ends of the connector being connected to the output end cover and the guide member respectively, the connector being used for connection to a load.

[0005] For example, the fixed end cover is provided with a connecting portion, the guide member is provided with a connecting mating portion, the connecting portion, the connecting mating portion and the output end cover are coaxially arranged, and the connecting portion and the connecting mating portion are adapted to each other; the motor further includes: a bearing, the inner sidewall of the bearing is connected to one of the connecting portion and the connecting mating portion, and the outer sidewall of the bearing is connected to the other of the connecting portion and the connecting mating portion.

[0006] For example, the fixed end cap has a connecting protrusion, the connecting portion includes the connecting protrusion, and the inner sidewall of the bearing is connected to the connecting protrusion; the guide has a connecting hole, the connecting mating portion includes the connecting hole, and the outer sidewall of the bearing is connected to the connecting hole; or, the guide has a protrusion, the protrusion has a connecting groove, the connecting mating portion includes the connecting groove, and the outer sidewall of the bearing is connected to the connecting groove.

[0007] For example, the connector includes a connecting frame, a first end of which is connected to the output end cap, and a second end of which is connected to the guide; wherein the connecting frame encloses a central cavity, and the sidewall of the central cavity is provided with a mounting hole, through which the connecting frame can be connected to the load.

[0008] For example, the connector includes a connecting plate and a connecting block, the connecting block being connected to the side wall of the connecting plate away from the annular housing, and the connecting block being used to connect to the load.

[0009] For example, the motor further includes a magnet disposed on the output end cover, the magnet being coaxially arranged with the output end cover, the magnet being used to correspond to the encoder.

[0010] For example, the output end cover has an annular protrusion, the annular protrusion surrounds a groove, and the magnet is disposed in the groove.

[0011] For example, the output end cover has a protrusion, the magnet is ring-shaped, and the magnet is sleeved on the outside of the protrusion.

[0012] For example, the output end cap is integrally formed with the connector; and / or, the guide is integrally formed with the connector.

[0013] For example, the housing further includes a lug connected to the outer side wall of the annular housing, the lug extending away from the annular housing, the extension length of the lug being greater than or equal to the radial distance between the connector and the outer side wall of the annular housing, and the motor being able to be fixed by the lug.

[0014] The embodiments described in this application have the following beneficial effects: In this embodiment, the motor includes an output assembly. The output end cover of the output assembly is directly or indirectly connected to a rotating shaft, which can directly or indirectly drive the output end cover to rotate. The outer casing includes an annular shell and a fixed end cover. The fixed end cover is located at the first port of the annular shell, and the output end cover is rotatably located at the second port of the annular shell. The fixed end cover and the output end cover can shield the space inside the annular shell, reducing the entry of external dust and impurities into the annular shell and preventing interference with the normal operation of the motor. The output assembly also includes a guide and a connector. The guide is rotatably connected to the fixed end cover and is located on opposite sides of the annular shell. The two ends of the connector are connected to the output end cover and the guide, respectively, and the connector is used to connect to the load. The output end cover, connector, guide, and load can rotate synchronously, so the load borne by the connector can be distributed to the guide and the output end cover, reducing the load borne by the output end cover. This reduces the deformation and loosening of the output end cover due to excessive force, improving the working stability and service life of the motor. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. The accompanying drawings described below are merely exemplary embodiments of this application.

[0016] Figure 1 This is a schematic diagram of the structure of an electric motor provided in this application. Figure 1 ; Figure 2 This is a schematic diagram of the structure of an electric motor provided in this application. Figure 2 ; Figure 3 This is a schematic diagram of the structure of an electric motor provided in this application. Figure 3 ; Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure along the AA direction; Figure 5 This is a partial cross-sectional structural diagram of an electric motor provided in this application; Figure 6 This is a structural schematic diagram of a guide component provided in this application; Figure 7 This is a schematic diagram of another type of motor provided in this application. Figure 1 ; Figure 8 This is a schematic diagram of another type of motor provided in this application. Figure 2 ; Figure 9 This is a partial cross-sectional structural schematic diagram of another type of motor provided in this application; and Figure 10 This is a structural schematic diagram of another guide component provided in this application.

[0017] Figure label: 100. Outer shell; 110. Annular shell; 120. Fixed end cap; 121. Connecting part; 122. Connecting protrusion; 130. Bearing; 140. Lug; 200, Shaft; 300, Rotor assembly; 400, Stator assembly; 500, Output component; 510, Output end cap; 511, Annular protrusion; 512, Groove; 520, Guide; 521, Connecting mating part; 522, Connecting hole; 523, Connecting groove; 530, Connecting component; 531, Connecting frame; 532, Mounting hole (first mounting hole); 533, Connecting plate; 534, Connecting block; 535, Second mounting hole. Detailed Implementation

[0018] The embodiments of this disclosure will now be described with reference to the accompanying drawings. The described embodiments are merely some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the protection scope of this application. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0019] This application provides a motor, such as Figures 1 to 4 As shown, the motor includes a housing 100, a shaft 200, a rotor assembly 300, a stator assembly 400, and an output assembly 500. The housing 100 includes an annular shell 110 and a fixed end cover 120, with the fixed end cover 120 connected to the first port of the annular shell 110. The shaft 200 is disposed inside the housing 100. The rotor assembly 300 is sleeved on the outside of the shaft 200, and the rotor assembly 300 can drive the shaft 200 to rotate. The stator assembly 400 is rotatably connected to the shaft 200. The output assembly 500 includes an output end cover 510, a guide 520, and a connector 530. The output end cover 510 is rotatably disposed at the second port of the annular shell 110 and is directly or indirectly connected to the shaft 200. The guide 520 is rotatably connected to the fixed end cover 120. The two ends of the connector 530 are respectively connected to the output end cover 510 and the guide 520, and the connector 530 is used to connect to the load.

[0020] The motor includes a housing 100, a rotating shaft 200, a rotor assembly 300, and a stator assembly 400. The rotating shaft 200, rotor assembly 300, and stator assembly 400 are all housed within the housing 100. When energized, the stator assembly 400 generates a magnetic field, causing the rotor assembly 300 to rotate under the influence of this magnetic field. The rotor assembly 300 is fitted over the outside of the rotating shaft 200, and its rotation drives the rotating shaft 200 to rotate as well. The stator assembly 400 is rotatably connected to the rotating shaft 200, with the shaft 200 passing through it. The stator assembly 400 provides radial support to the rotating shaft 200, reducing shaft misalignment and wobbling, and improving the operational stability of the rotating shaft 200.

[0021] The motor also includes an output assembly 500. The output end cover 510 of the output assembly 500 is directly or indirectly connected to the rotating shaft 200, which can directly or indirectly drive the output end cover 510 to rotate. The housing 100 includes an annular housing 110 and a fixed end cover 120. The fixed end cover 120 is located at the first port of the annular housing 110, and the output end cover 510 is rotatably located at the second port of the annular housing 110. The fixed end cover 120 and the output end cover 510 can shield the space inside the annular housing 110, reducing the entry of external dust and impurities into the annular housing 110 and preventing interference with the normal operation of the motor. The fixed end cover 120 can also serve as a mounting support for internal components of the motor. For example, if the motor includes an encoder assembly, the encoder assembly can be mounted on the side of the fixed end cover 120 facing the interior of the annular housing 110.

[0022] The output assembly 500 also includes a guide 520 and a connector 530. The guide 520 is rotatably connected to the fixed end cover 120. The guide 520 and the output end cover 510 are respectively disposed on opposite sides of the annular housing 110. The two ends of the connector 530 are respectively connected to the output end cover 510 and the guide 520, and the connector 530 is used to connect to the load. The output end cover 510, the connector 530, the guide 520, and the load can rotate synchronously. In this way, the load borne by the connector 530 can be distributed to the guide 520 and the output end cover 510, reducing the load borne by the output end cover 510. This reduces the occurrence of deformation and loosening of the output end cover 510 due to excessive force, thereby improving the working stability and service life of the motor.

[0023] For example, along the axial direction of the shaft 200, the fixed end cover 120, the rotor assembly 300, the stator assembly 400, and the output end cover 510 are arranged sequentially. Alternatively, there may be two stator assemblies 400, namely a first stator assembly and a second stator assembly, arranged sequentially along the axial direction of the shaft 200, including the fixed end cover 120, the first stator assembly, the rotor assembly 300, the second stator assembly, and the output end cover 510.

[0024] It is understood that the above description of the arrangement of rotor assembly 300 and stator assembly 400 is merely exemplary. The arrangement of rotor assembly 300 and stator assembly 400 protected by this application is not limited to the contents listed above. The specific arrangement of rotor assembly 300 and stator assembly 400 can be set according to the experience of those skilled in the art, as long as it can realize the technical principles of this application.

[0025] When the rotating shaft 200 is directly connected to the output end cover 510, the rotating shaft 200 can be integrally formed with the output end cover 510. Alternatively, the output end cover 510 may have a rotating shaft hole, and the end of the rotating shaft 200 may be located within the rotating shaft hole and fixedly connected to the output end cover 510. When the rotating shaft 200 is indirectly connected to the output end cover 510, the motor may further include a reducer assembly. The end of the rotating shaft 200 is connected to the output end of the reducer assembly, and the output end of the reducer assembly is connected to the output end cover 510. The rotating shaft 200 can be connected to the output end cover 510 through the reducer assembly. It is understood that the above description of the connection method between the rotating shaft 200 and the output end cover 510 is merely exemplary. The connection method between the rotating shaft 200 and the output end cover 510 protected by this application is not limited to the content listed above. The specific connection method between the rotating shaft 200 and the output end cover 510 can be set according to the experience of those skilled in the art, as long as it can realize the technical principle of this application.

[0026] For example, such as Figures 4 to 6 as well as Figures 8 to 10 As shown, the fixed end cover 120 is provided with a connecting portion 121, and the guide member 520 is provided with a connecting mating portion 521. The connecting portion 121, the connecting mating portion 521, and the output end cover 510 are coaxially arranged, and the connecting portion 121 and the connecting mating portion 521 are adapted to each other. The motor also includes a bearing 130. The inner sidewall of the bearing 130 is connected to one of the connecting portion 121 and the connecting mating portion 521, and the outer sidewall of the bearing 130 is connected to the other of the connecting portion 121 and the connecting mating portion 521.

[0027] The fixed end cap 120 is provided with a connecting part 121, and the guide member 520 is provided with a connecting mating part 521. The inner side wall of the bearing 130 is connected to one of the connecting part 121 and the connecting mating part 521, and the outer side wall of the bearing 130 is connected to the other of the connecting part 121 and the connecting mating part 521. In this way, the connecting part 121 and the connecting mating part 521 can be rotatably connected through the bearing 130, so that the guide member 520 can rotate relative to the fixed end cap 120, and the fixed end cap 120 can support the guide member 520 to share the load transmitted by the connecting member 530.

[0028] For example, the fixed end cap 120 is provided with a fixed groove, the connecting part includes the fixed groove, the bearing 130 is disposed in the fixed groove, and the outer side wall of the bearing 130 is connected to the inner side wall of the fixed groove. The guide member 520 is provided with a mating protrusion, the connecting mating part includes the mating protrusion, and the inner side wall of the bearing 130 is connected to the outer side wall of the mating protrusion.

[0029] For example, such as Figures 4 to 6 As shown, the fixed end cap 120 has a connecting protrusion 122, and the connecting part 121 includes the connecting protrusion 122. The inner sidewall of the bearing 130 is connected to the connecting protrusion 122. The guide member 520 has a protrusion, and the protrusion has a connecting groove 523. The connecting mating part 521 includes the connecting groove 523, and the outer sidewall of the bearing 130 is connected to the connecting groove 523.

[0030] For example, such as Figures 8 to 10 As shown, the fixed end cap 120 has a connecting protrusion 122, and the connecting part 121 includes the connecting protrusion 122. The inner sidewall of the bearing 130 is connected to the connecting protrusion 122. The guide member 520 has a connecting hole 522, and the connecting mating part 521 includes the connecting hole 522. The outer sidewall of the bearing 130 is connected to the connecting hole 522. That is, both the bearing 130 and the connecting protrusion 122 are located within the connecting hole 522. This reduces the axial length of the guide member 520, thereby reducing the axial dimension of the motor and meeting the requirements for motor miniaturization.

[0031] It is understood that the above description of the connection method between the guide 520 and the fixed end cap 120 is merely exemplary. The connection method between the guide 520 and the fixed end cap 120 protected by this application is not limited to the content listed above. The specific connection method between the guide 520 and the fixed end cap 120 can be selected based on the experience of those skilled in the art, as long as it can realize the technical principle of this application.

[0032] In one example, such as Figures 1 to 5 As shown, the connector 530 includes a connecting frame 531. The first end of the connecting frame 531 is connected to the output end cover 510, and the second end of the connecting frame 531 is connected to the guide member 520. The connecting frame 531 encloses a central cavity, and the sidewall of the central cavity is provided with a mounting hole 532 (hereinafter referred to as the first mounting hole 532 for easy distinction). The connecting frame 531 can be connected to the load through the first mounting hole 532.

[0033] The first and second ends of the connecting frame 531 are connected to the output end cover 510 and the guide member 520, respectively. The output end cover 510, the connecting frame 531, and the guide member 520 can rotate synchronously. The connecting frame 531 encloses a central cavity, which can penetrate the connecting frame 531 radially along the motor. The central cavity can provide installation space for the load, that is, part of the load can be located within the central cavity.

[0034] The sidewall of the central cavity is provided with a first mounting hole 532, through which the connecting frame 531 can be connected to the load. For example, one end of the first mounting hole 532 communicates with the central cavity. The first mounting hole 532 can extend axially along the motor or radially along the motor. The first mounting hole 532 may include a threaded hole, through which a bolt can pass and be threaded to fasten the load to the connecting frame 531. The first mounting hole 532 may also include a through hole, through which a bolt can pass and be threaded to a nut; or, for example, through which the load and the through hole can be connected by a rivet; or, for yet another example, through which the load can have a threaded hole, through which a bolt can pass and be threaded to the load.

[0035] like Figure 1 As shown, there can be multiple first mounting holes 532, which are respectively located at the first end and the second end of the connecting frame 531. The load can be connected to the connecting frame 531 simultaneously through multiple first mounting holes 532 to improve the stability and reliability of the load installation. Where the first mounting hole 532 includes a through hole, the through hole at the first end of the connecting frame 531 can penetrate the output end cover 510, and the through hole at the second end of the connecting frame 531 can penetrate the guide member 520.

[0036] It is understood that the above description of the structure of the first mounting hole 532 is merely exemplary. The structure of the first mounting hole 532 protected by this application is not limited to the content described above. The specific structure of the first mounting hole 532 can be set according to the experience of those skilled in the art or the actual needs of the load, as long as it can realize the principle of this application.

[0037] In another example, such as Figures 7 to 9 As shown, the connector 530 includes a connecting plate 533 and a connecting block 534. The connecting block 534 is connected to the side wall of the connecting plate 533 away from the annular housing 110, and the connecting block 534 is used to connect to the load.

[0038] The connector 530 includes a connecting plate 533 and a connecting block 534. The two ends of the connecting plate 533 are connected to the output end cover 510 and the guide member 520, respectively. The connecting block 534 is connected to the side wall of the connecting plate 533 away from the annular housing 110, so that the connecting block 534 can be connected to the load. There can be multiple connecting blocks 534, for example, two, which are connected to the connecting plate 533 at intervals along the axial or radial direction of the motor.

[0039] The connecting block 534 may be provided with a second mounting hole 535, which may extend radially or axially along the motor. The second mounting hole 535 may include a through hole or a threaded hole. The connection method between the second mounting hole 535 and the load can refer to the connection method between the first mounting hole 532 and the load, and will not be described again here.

[0040] The connecting block 534 and the connecting plate 533 can be integrally formed. The connecting block 534 can also be fixedly connected to the connecting plate 533 by means of snap-fit, welding or threaded connection.

[0041] It should be noted that the above description of the configuration of connector 530 is merely exemplary. The configuration of connector 530 protected by this application is not limited to the content described above. The specific configuration of connector 530 can be set according to the experience of those skilled in the art, as long as it can realize the technical principles of this application.

[0042] For example, the output end cover 510 can be integrally formed with the connector 530. This can increase the connection strength between the output end cover 510 and the connector 530, reduce the occurrence of breakage at the connection between the output end cover 510 and the connector 530, and improve the working stability and service life of the motor.

[0043] For example, the guide 520 can be integrally formed with the connector 530. This can increase the connection strength between the guide 520 and the connector 530, reduce the occurrence of breakage at the connection between the guide 520 and the connector 530, and improve the working stability and service life of the motor.

[0044] For example, the motor also includes a magnet disposed on the output end cover 510, the magnet being coaxially disposed with the output end cover 510, and the magnet being used to correspond to the encoder.

[0045] A magnet is mounted on the output end cover 510, and the magnet and the output end cover 510 are coaxially arranged. The output end cover 510 can drive the magnet to rotate. The magnet corresponds to an encoder, which is an external encoder of the motor. The encoder can detect the rotational speed of the magnet to detect the rotational speed of the output component 500 and the load, realizing output speed feedback and improving the stability and reliability of motor operation.

[0046] For example, such as Figure 1 and Figures 3 to 5 As shown, the output end cover 510 has an annular protrusion 511, and the annular protrusion 511 surrounds a groove 512, within which a magnet is disposed. The magnet is fixed within the groove 512 of the annular protrusion 511, allowing the magnet to rotate with the output end cover 510. The annular protrusion 511 can be circular or square, as long as it achieves the technical principle of this application.

[0047] For example, the output end cover 510 has a protrusion, and the magnet is ring-shaped, with the magnet sleeved on the outside of the protrusion. The magnet is ring-shaped and sleeved on the outside of the protrusion of the output end cover 510, which can also fix the magnet.

[0048] It is understood that the above description of the magnet installation method is merely exemplary, and the magnet installation method protected by this application is not limited to the content described above. For example, a ring magnet can also be sleeved on the outside of the aforementioned annular protrusion 511. The magnet setting method can be set according to the size of the corresponding encoder or the experience of those skilled in the art, as long as the technical principle of this application can be realized.

[0049] For example, such as Figures 1 to 3 as well as Figures 7 to 8 As shown, the housing 100 also includes a lug 140, which is connected to the outer wall of the annular housing 110. The lug 140 extends away from the annular housing 110, and the extension length of the lug 140 is greater than or equal to the radial distance between the connector 530 and the outer wall of the annular housing 110. The motor can be fixed by the lug 140.

[0050] The radial distance between the connector 530 and the outer wall of the annular housing 110 can be expressed as: the maximum distance between the outer wall of the annular housing 110 and the side wall of the connector 530 facing the annular housing 110 along the radial direction of the motor.

[0051] Lug 140 extends away from the annular housing 110. Lug 140 can extend radially along the motor or in a direction parallel to the motor's radial direction. The extension length of lug 140 is greater than or equal to the radial distance between the connector 530 and the outer wall of the annular housing 110. Thus, when the connector 530 rotates to lug 140, the lug 140 can contact the two opposing side walls of the connector 530 along the circumferential direction of the motor. Lug 140 can prevent the connector 530 from continuing to rotate, thereby limiting the movement of the connector 530 and the load. This reduces the risk of load damage due to continued movement after reaching its limit position, and also reduces the possibility of the connector 530 circumferentially rotating and entangled in the motor's cables (e.g., power lines or signal transmission lines), improving the stability and reliability of the motor operation.

[0052] The motor is fixed by a lug 140, meaning the lug 140 can connect to a mounting component for motor installation. For example, the lug 140 has a third mounting hole, allowing a fastener to pass through the third mounting hole and the mounting component to connect the lug 140 to the mounting component. In this way, the lug 140 not only serves a limiting function but also secures the motor, improving the utilization rate of the lug 140, reducing the number of motor components, and further meeting the requirements for motor miniaturization. For example, along the circumferential direction of the motor, the extension angle of the lug 140 can be less than or equal to 90 degrees, and the extension angle of the connector 530 can also be less than or equal to 90 degrees.

[0053] It is understood that the above description of the setting method of the lug 140 is merely exemplary. The setting method of the lug 140 protected by this application is not limited to the content listed above. The specific setting method of the lug 140 can be set according to the experience of those skilled in the art, as long as it can realize the technical principle of this application.

[0054] In the description of this application, it should be understood that the following terms, such as “center,” “longitudinal,” “lateral,” “length,” “width,” “thickness,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “clockwise,” “counterclockwise,” “axial,” “radial,” and “circumferential,” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the content or structure of this invention.

[0055] It should be noted that the order of the embodiments described above is merely for descriptive purposes and does not represent the superiority or inferiority of the embodiments.

[0056] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0057] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0058] In this application, unless otherwise stated, directional terms such as "up" and "down" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" are generally used in relation to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this application.

[0059] The above description is merely an exemplary embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope described in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An electric motor, characterized in that, include: The outer casing (100) includes an annular housing (110) and a fixed end cap (120), the fixed end cap (120) being connected to a first port of the annular housing (110); A rotating shaft (200) is disposed within the outer casing (100); A rotor assembly (300) is sleeved on the outside of the rotating shaft (200), and the rotor assembly (300) can drive the rotating shaft (200) to rotate; The stator assembly (400) is rotatably connected to the rotating shaft (200); as well as The output assembly (500) includes an output end cap (510), a guide (520), and a connector (530). The output end cap (510) is rotatably disposed at the second port of the annular housing (110). The output end cap (510) is directly or indirectly connected to the rotating shaft (200). The guide (520) is rotatably connected to the fixed end cap (120). The two ends of the connector (530) are respectively connected to the output end cap (510) and the guide (520). The connector (530) is used to connect to the load.

2. The motor according to claim 1, characterized in that, The fixed end cap (120) is provided with a connecting part (121), and the guide (520) is provided with a connecting mating part (521). The connecting part (121), the connecting mating part (521) and the output end cap (510) are coaxially arranged, and the connecting part (121) is adapted to the connecting mating part (521). The motor further includes a bearing (130), the inner wall of which is connected to one of the connecting part (121) and the connecting mating part (521), and the outer wall of which is connected to the other of the connecting part (121) and the connecting mating part (521).

3. The motor according to claim 2, characterized in that, The fixed end cap (120) is provided with a connecting protrusion (122), the connecting part (121) includes the connecting protrusion (122), and the inner sidewall of the bearing (130) is connected to the connecting protrusion (122); The guide member (520) is provided with a connecting hole (522), and the connecting mating part (521) includes the connecting hole (522), and the outer side wall of the bearing (130) is connected to the connecting hole (522); or, the guide member (520) is provided with a protrusion, and the protrusion is provided with a connecting groove (523), and the connecting mating part (521) includes the connecting groove (523), and the outer side wall of the bearing (130) is connected to the connecting groove (523).

4. The motor according to claim 1, characterized in that, The connector (530) includes a connecting frame (531), the first end of which is connected to the output end cap (510), and the second end of which is connected to the guide (520). The connecting frame (531) encloses a central cavity, and the side wall of the central cavity is provided with a mounting hole (532). The connecting frame (531) can be connected to the load through the mounting hole (532).

5. The motor according to claim 1, characterized in that, The connector (530) includes a connecting plate (533) and a connecting block (534), the connecting block (534) being connected to the connecting plate (533) away from the side wall of the annular housing (110), and the connecting block (534) being used to connect to the load.

6. The motor according to claim 1, characterized in that, Also includes: A magnet is disposed on the output end cover (510), the magnet is coaxially disposed with the output end cover (510), and the magnet is used to correspond to the encoder.

7. The motor according to claim 6, characterized in that, The output end cover (510) is provided with an annular protrusion (511), and the annular protrusion (511) is surrounded by a groove (512), and the magnet is disposed in the groove (512).

8. The motor according to claim 6, characterized in that, The output end cap (510) has a protrusion, the magnet is ring-shaped, and the magnet is sleeved on the outside of the protrusion.

9. The motor according to any one of claims 1 to 8, characterized in that, The output end cap (510) is integrally formed with the connector (530); and / or, The guide (520) and the connector (530) are integrally formed.

10. The motor according to any one of claims 1 to 8, characterized in that, The housing (100) also includes: Lug (140) is connected to the outer wall of the annular housing (110). The lug (140) extends away from the annular housing (110). The extension length of the lug (140) is greater than or equal to the radial distance between the connector (530) and the outer wall of the annular housing (110). The motor can be fixed by the lug (140).

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