Driving module and fitness equipment

Abstract

The utility model discloses a driving module and fitness equipment, and belongs to the technical field of power equipment.The driving module comprises a first supporting seat, a second supporting seat, a stator assembly, a rotor shell and a rotor assembly; a first shaft hole is formed in the first supporting seat, the rotor shell is of a rotary structure, a transmission part and a winding part are sequentially arranged on the rotor shell in the axis direction of the rotor shell, the transmission part is provided with a rotating shaft, and the rotating shaft is matched with the first shaft hole so that the rotor shell can be rotationally installed on the first supporting seat; the winding part is rotatably mounted on the second supporting seat; an installation space is formed between the inner wall of the transmission part and the outer wall of the first supporting seat, the stator assembly is arranged in the installation space and fixedly connected with the first supporting seat, and the rotor assembly is arranged in the installation space and fixedly connected with the rotor shell. The driving module is high in structural strength and balanced in stress, and the running stability of the driving module is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power equipment, in particular to a driving module and fitness equipment. Background Art

[0002] With the improvement of people's living standards and the promotion of fitness equipment for all, more and more people are using fitness equipment to exercise. At present, electric resistance type fitness equipment is gradually entering the market. This type of fitness equipment uses a motor as a drive module to provide resistance. The motor of the existing drive module is generally an external rotor motor. One end of the rotor shell is rotatably mounted on the support shaft. The stator assembly and rotor assembly are matched to drive the rotor shell to rotate. The other end of the rotor shell is installed with a turntable for winding the tension rope. When in use, the fitness person directly or indirectly pulls the tension rope to obtain the resistance force provided by the motor. The existing motor not only requires a support shaft located on one side of the motor to support the stator assembly, rotor assembly, rotor shell and other components, but also requires a support shaft to withstand the tension of the tension rope. Therefore, the support shaft needs to be designed with a larger volume to ensure structural strength. At the same time, because the rotor shell drives the turntable to wind the tension rope, it will be subjected to the rope tension perpendicular to the axial direction of the support shaft, which can easily lead to uneven force on the motor, thereby affecting the stability of the motor operation. Utility Model Content

[0003] One purpose of the embodiments of the present utility model is to provide a drive module with high structural strength and balanced force, thereby improving the stability of the operation of the drive module.

[0004] Another purpose of the embodiment of the present utility model is to provide a fitness equipment, which can improve the structural strength and operational stability of the fitness equipment by using the above-mentioned driving module.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] In one aspect, a drive module is provided, comprising:

[0007] The first support seat is provided with a first shaft hole;

[0008] a second support seat;

[0009] The rotor housing is a rotary structure; the rotor housing is provided with a transmission part and a winding part in sequence along the axis direction thereof, and the transmission part has a rotating shaft;

[0010] stator assembly;

[0011] as well as

[0012] rotor assembly;

[0013] The rotating shaft cooperates with the first shaft hole so that the transmission part can be rotatably mounted on the first support seat; the winding part can be rotatably mounted on the second support seat, and an installation space is formed between the inner wall of the transmission part and the outer wall of the first support seat. The stator assembly is arranged in the installation space and fixedly connected to the first support seat, and the rotor assembly is arranged in the installation space and fixedly connected to the rotor housing.

[0014] Optionally, the drive module also includes a first bearing and a second bearing; the axis of the first bearing and the axis of the second bearing are collinear, the first bearing is installed in the first axial hole of the first support seat and is sleeved on the rotating shaft, the second bearing is installed on the winding part of the rotor housing, and the second support seat is installed on the second bearing to reduce friction.

[0015] Optionally, there are multiple first bearings and they are spaced apart along the axis of the rotating shaft, so that the force on the transmission part is more dispersed and uniform.

[0016] Optionally, the first support seat includes a mounting plate and a first support shaft connected to the mounting plate; the second support seat includes a mounting shaft and a second support shaft connected to the mounting shaft; the stator assembly is mounted on the first support shaft, the second bearing is sleeved on the second support shaft, and the rotor housing is located between the mounting plate and the mounting shaft to facilitate the installation of the drive module.

[0017] Optionally, the drive module also includes a retaining spring; the retaining spring is installed on the second support shaft or the rotor housing, a positioning shoulder is provided on the second support shaft, the winding portion of the rotor housing is provided with a second shaft hole, the second shaft hole is provided with a positioning hole shoulder, the second bearing is installed in the second shaft hole, one end of the second bearing abuts against the positioning shaft shoulder and the positioning hole shoulder, and the other end of the second bearing abuts against the retaining spring to realize the installation of the second bearing.

[0018] Optionally, the width of the first bearing along the axial direction is smaller than the width of the second bearing along the axial direction, thereby improving the load capacity of the winding portion.

[0019] Optionally, the winding portion is provided with a winding groove, and the winding groove is arranged around the winding portion along the rotation axis of the rotor housing to facilitate the retraction and release of the tension rope.

[0020] Optionally, the bottom wall of the winding groove is enclosed to form a winding shaft, and the diameter of the winding shaft is larger than the diameter of the rotating shaft, thereby improving the efficiency of retracting and releasing the tension rope and the strength of the winding part.

[0021] Optionally, the drive module also includes an encoder magnet and an encoder assembly adapted to the encoder magnet; the encoder assembly is installed in the first shaft hole, the encoder magnet is installed on the rotating shaft, and the encoder assembly and the encoder magnet are both located on the rotating axis of the rotating shaft and are arranged at intervals along the rotating axis of the rotating shaft.

[0022] Optionally, the drive module also includes an end cover having a wiring channel and a wire electrically connected to the encoder assembly; the axial hole passes through the first support seat, the encoder assembly is mounted on the end cover, the end cover is mounted on the first support seat and covers the hole at one end of the axial hole, the rotating shaft is rotatably mounted in the axial hole from the hole at the other end of the axial hole, one end of the wire is located outside the first support seat, and the other end of the wire passes through the wiring channel and is electrically connected to the encoder assembly.

[0023] Optionally, the rotating shaft and the rotor housing are integrally formed.

[0024] On the other hand, a fitness equipment is provided, comprising the above-mentioned driving module.

[0025] The beneficial effects of the utility model are:

[0026] The driving module of the present invention is installed on the fitness equipment and used in conjunction with the tension rope. In order to avoid uneven force caused by unilateral force when the driving module retracts and releases the tension rope, the driving module of the present invention realizes double support of the rotor shell by setting a first support seat and a second support seat. The first support seat is used to support the stator assembly, the rotor assembly, and the transmission part of the rotor shell, and the second support seat is used to support the winding part of the rotor shell. The first support seat and the second support seat can both be used to be installed on the frame of the fitness equipment, thereby realizing double support of the driving module and avoiding unilateral force on the driving module when the rotor shell rotates to rewind the tension rope, making the driving module structurally stronger and the force more balanced, thereby improving the stability of the driving module operation.

[0027] The fitness equipment of the present invention adopts the above-mentioned driving module, and by using the above-mentioned driving module, the structural strength and operational stability of the fitness equipment can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0029] Figure 1 It is a structural diagram of the drive module;

[0030] Figure 2 for Figure 1 A structural diagram from another perspective;

[0031] Figure 3 is a cross-sectional view of the drive module;

[0032] Figure 4 This is a schematic diagram of the installation of the end cap and wires;

[0033] Figure 5 for Figure 4 A structural diagram from another perspective.

[0034] Description of the accompanying drawings:

[0035] 11. First support base; 12. Second support base; 13. Stator assembly; 14. Rotor housing; 15. Rotor assembly; 16. First bearing; 17. Second bearing; 18. Circlip; 19. Encoder magnet; 20. Encoder assembly; 21. Wire; 22. Magnetic seat; 23. End cap; 24. Threaded fastener; 25. Dowel pin;

[0036] 111. Mounting plate; 112. First support shaft; 113. First shaft hole;

[0037] 121, mounting shaft; 122, second support shaft; 123, positioning shoulder;

[0038] 131. stator core;

[0039] 141. Transmission unit; 142. Wire winding unit; 143. Installation space; 144. Rotating shaft; 145. Wire winding groove; 146. Wire winding shaft; 147. Second shaft hole; 148. Positioning hole shoulder;

[0040] 151. Magnetic yoke; 152. Rotor magnet;

[0041] 201. Encoder circuit board; 202. Sensor chip;

[0042] 231. Wiring channel; 232. Threaded hole. DETAILED DESCRIPTION

[0043] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved more clearly, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present invention.

[0044] In the description of this utility model, unless otherwise expressly specified or limited, the terms "connected," "fixed," "connected," "communicated," "abutted," "clamped," etc. should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections; direct connections, or indirect connections through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0045] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0046] In the description herein, it should be understood that terms such as "upper," "lower," "left," and "right" are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0047] Throughout this specification, references to terms such as "one embodiment" and "example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example.

[0048] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0049] Unless specifically stated or defined otherwise, the term “and / or” used in the present invention includes any and all combinations of one or more of the associated listed items.

[0050] For the convenience of description, unless otherwise specified, the left and right directions mentioned below are the same as Figure 3 The right and left directions themselves are consistent.

[0051] In the related art, the drive device of fitness equipment primarily utilizes an outer rotor motor, which retracts and releases a tension rope to provide resistance. Existing outer rotor motors primarily consist of a central shaft, a stator assembly, a rotor assembly, and a rotor housing. The central shaft serves as a support shaft, supporting the stator, rotor, and rotor housing. The transmission portion of the rotor housing is mounted on the central shaft, and the winding portion of the rotor housing is equipped with a winding reel and other components to retract and release the tension rope. During operation, when the outer rotor motor retracts and releases the tension rope, the winding portion of the rotor housing is subjected to tension perpendicular to the rotor housing's rotational axis. This creates an imbalance in the forces acting on the transmission and winding portions of the rotor housing, and the central shaft is subjected to radial forces perpendicular to the axis, affecting the stability of the motor's operation. Currently, the existing art primarily increases the overall strength of the motor by increasing the diameter of the central shaft to ensure operational stability, but this approach increases the overall size of the motor. When the motor is installed on the fitness equipment, the connection portion supporting the central shaft on the frame also needs to be larger, and large bolts are then used to secure the central shaft to the frame.

[0052] In order to solve the problems in the above-mentioned related technologies, the present application provides a drive module, which has high structural strength and balanced force. Without increasing the volume of the central shaft or the support shaft, the stability of the drive module operation is guaranteed. The drive module achieves dual support through a first support seat and a second support seat. The first support seat is mainly used to support the transmission part of the rotor housing to ensure the smooth rotation of the rotor housing. The second support seat is mainly used to withstand the tension on the winding part of the rotor housing perpendicular to the direction of the rotation axis of the rotor housing, so that the overall structural strength of the drive module is more balanced, and the stability of the drive module operation is improved.

[0053] like Figures 1 to 5As shown, the drive module provided by the present application includes a first support base 11, a second support base 12, a stator assembly 13, a rotor housing 14, and a rotor assembly 15. When the drive module is energized, the rotor assembly 15 cooperates with the stator assembly 13, and the rotor assembly 15 can rotate relative to the stator assembly 13 to provide power. The first support base 11 and the second support base 12 are separated on the left and right sides of the rotor housing 14 to achieve dual support of the drive module. Specifically, the first support base 11 is provided with a first axial hole 113, and the rotor housing 14 is a rotary structure. The rotary structure means that the rotor housing 14 has an axis or center line, and the rotor housing 14 can rotate around the axis or center line. The rotor housing 14 is provided with a transmission portion 141 and a winding portion 142 along its axis. The transmission portion 141 is mounted on the first support base 11, and the winding portion 142 can be used to directly wind and release the tension rope, or it can be connected to a reel to wind and release the tension rope. The transmission portion 141 and the winding portion 142 are connected and integrally formed. The transmission portion 141 and the winding portion 142 are arranged in sequence along the rotation axis 144 of the rotor housing 14, with the transmission portion 141 located to the left of the winding portion 142. The transmission portion 141 has a rotation axis 144 that mates with the first axial hole 113, allowing the transmission portion 141 of the rotor housing 14 to be rotatably mounted on the first support base 11. The winding portion 142 of the rotor housing 14 is rotatably mounted on the second support base 12. An installation space 143 is formed between the inner wall of the transmission portion 141 and the outer wall of the first support base 11. This installation space 143 is an annular groove surrounding the rotating shaft 144 and is located on the left end surface of the transmission portion 141. The stator assembly 13 is disposed within the installation space 143 and fixedly connected to the first support base 11. The stator assembly 13 is disposed around the outer surface of the first support base 11. The rotor assembly 15 is disposed within the installation space 143 and fixedly connected to the rotor housing 14. Rotation of the rotor assembly relative to the stator assembly 13 drives rotation of the rotor housing 14. The rotor assembly 15 is disposed within the installation space 143 and is mounted on the inner circumferential side of the installation space 143. The rotor assembly 15 is arranged along the inner circumferential side of the installation space 143. When the rotor housing 14 is mounted on the first support base 11 via the rotating shaft 144, the rotor assembly 15 is encircled by the stator assembly 13. Rotation of the rotor assembly 15 relative to the stator assembly 13 drives rotation of the rotor housing 14. The rotating shaft 144 can be mounted in the mounting space 143 by bolts or the like, or it can be integrally formed with the rotor housing 14. In this embodiment, the rotating shaft 144 and the rotor housing 14 are integrally formed to ensure the strength of the rotor housing 14. The transmission portion 141 is sleeved on the stator assembly 13 through the mounting space 143, and the rotating shaft 144 is rotatably mounted in the first shaft hole 113 of the first support base 11. The rotor assembly 15 and the stator assembly 13 are both located between the rotating shaft 144 and the inner wall of the mounting space 143.The transmission portion 141 is rotatably mounted on the first support base 11, and the winding portion 142 is rotatably mounted on the second support base 12. The axis of the rotating shaft 144, the rotation axis 144 line of the transmission portion 141 of the rotor housing 14 rotating relative to the first support base 11, the rotation axis 144 line of the rotor assembly 15, and the rotation axis 144 line of the winding portion 142 of the rotor housing 14 rotating relative to the second support base 12 are all located on the same straight line.

[0054] Thus, when the drive device of this embodiment is installed, the first support base 11 and the second support base 12 are fixedly mounted. For example, when the drive device is used on fitness equipment, the first support base 11 and the second support base 12 are mounted on the frame of the fitness equipment using bolts or the like. The first support base 11 and the second support base 12 jointly provide support for the stator assembly 13, the rotor housing 14, and the rotor assembly 15, thereby achieving dual support. When the drive device is in operation, the first support base 11 primarily provides support for the stator assembly 13, the rotor assembly 15, and the transmission portion 141 of the rotor housing 14, allowing the rotor housing 14 to rotate smoothly. The second support base 12 primarily provides support for the winding portion 142 of the rotor housing 14 and simultaneously withstands the tension on the winding portion in a direction perpendicular to the rotation axis of the rotor housing. This ensures that the rotor housing 14 is subjected to more balanced force when the tension rope is retracted and released, thereby improving the structural strength of the drive module and ensuring the stability of the drive module operation.

[0055] Optionally, the drive module further includes a first bearing 16 and a second bearing 17. The axis of the first bearing 16 and the axis of the second bearing 17 are collinear. The first bearing 16 is installed in the first axial hole 113 of the first support seat 11 and is sleeved on the rotating shaft 144. There are multiple first bearings 16 and they are spaced apart along the axis of the rotating shaft 144 to reduce the friction when the rotating shaft 144 rotates, so that the force applied to the transmission part 141 is more dispersed and more uniform. The second bearing 17 is installed in the winding portion 142 of the rotor housing 14. Specifically, the second bearing 17 is installed in the winding shaft 146, and the second support seat 12 is installed on the second bearing 17. The second bearing 17 is sleeved on the second support seat 12 to reduce the rotational friction between the second support seat 12 and the rotor housing 14.

[0056] In one embodiment, the first support base 11 includes a mounting plate 111 and a first support shaft 112 connected to the mounting plate 111. The second support base 12 includes a mounting shaft 121 and a second support shaft 122 connected to the mounting shaft 121. The mounting plate 111 and the mounting shaft 121 are both used to be installed on other components to achieve the installation and positioning of the drive device. For example, the mounting plate 111 and the mounting shaft 121 can be installed on the frame of the fitness equipment. The stator assembly 13 is installed on the first support shaft 112. The stator assembly 13 includes a stator core 131 and a winding provided on the stator core 131. The stator core 131 is sleeved on the first support shaft 112. The transmission part 141 of the rotor housing 14 is sleeved on the stator assembly 13 and the first support shaft 112 through the installation space 143. Second bearing 17 is sleeved onto second support shaft 122. Rotor housing 14 is positioned between mounting plate 111 and mounting shaft 121. Rotor housing 14 is rotatably mounted on first and second support shafts 112, 122, respectively, at either end. Dual support is achieved using first and second support shafts 112, 122. Rotor housing 14 is then mounted to the frame of the fitness equipment via mounting plate 111 and mounting shaft 121. Mounting plate 111 and / or mounting shaft 121 are provided with connection holes to facilitate installation of mounting plate 111 and mounting shaft 121.

[0057] Furthermore, the drive module also includes a retaining spring 18. The retaining spring 18 is mounted on the second support shaft 122 or on the winding portion 142 of the rotor housing 14. The second support shaft 122 is provided with a positioning shoulder 123. The winding portion 142 of the rotor housing 14 defines a second axial hole 147. The retaining spring 18 is disposed within the second axial hole 147. The second axial hole 147 is located within the winding shaft 146 formed by the bottom wall of the winding groove 145. The second axial hole 147 is provided with a positioning shoulder 148. The second bearing 17 is mounted within the second axial hole 147. One end of the second bearing 17 abuts the positioning shoulder 123 and the positioning shoulder 148, while the other end of the second bearing 17 abuts the retaining spring 18. The retaining spring 18 is located near the opening of the second axial hole 147 to prevent the second bearing 17 from disengaging from the second axial hole 147.

[0058] Optionally, the first bearing 16 supports the stator assembly 13, the rotor assembly 15, and the like. The first bearing 16 has a relatively small width, which can save installation space and reduce the volume of the drive device. At the same time, considering that the winding portion 142 must withstand radial forces, the axial width of the second bearing 17 is greater than the axial width of the first bearing 16. The bearing balls of the second bearing 17 are larger, and the load-bearing capacity of the second bearing 17 is stronger. The diameter of the second bearing 17 is smaller than that of the first bearing 16, so that the axis of the second bearing 17 is closer to the point of application of the tension rope, which can also improve the load-bearing capacity of the second bearing 17.

[0059] Optionally, the winding portion 142 is provided with a winding groove 145, which is looped along the rotating shaft 144 of the rotor housing 14. Compared to the prior art method of reeling in and out the tension rope via an external reel, the winding portion 142 in this embodiment is integrally formed with the winding groove 145, utilizing the rotor housing 14 to directly reel in and out the tension rope, further enhancing the structural strength of the drive module.

[0060] Furthermore, the bottom wall of the winding groove 145 encloses a winding shaft 146, which has a diameter greater than that of the rotating shaft 144. The smaller diameter of the rotating shaft 144 reduces the size and saves installation space. The winding shaft 146 is used to reel in or release the tension rope. If the winding shaft 146 is the same length and the winding shaft 146 and the rotating shaft 144 rotate the same number of revolutions, the winding shaft 146 can reel in or release a longer tension rope, thereby improving the efficiency of the tension rope retraction and release.

[0061] In one embodiment, the drive module further includes an encoder magnet 19, an encoder assembly 20 adapted to fit the encoder magnet 19, and a wire 21 electrically connected to the encoder assembly 20. The encoder assembly 20 is mounted within the first shaft hole 113, and the encoder magnet 19 is mounted to the rotating shaft 144 via a magnet seat 22. The encoder assembly 20 and the encoder magnet 19 are both located on the rotating axis 144 line of the rotating shaft 144 and spaced apart along the rotating axis 144 line of the rotating shaft 144. The wire 21 can transmit signals and conduct electricity. The encoder assembly 20 is mounted within the first shaft hole 113, and the encoder magnet 19 is mounted on the rotating shaft 144. The encoder assembly 20 and the encoder magnet 19 are both located on the rotating axis 144 line of the rotating shaft 144 and spaced apart along the rotating axis 144 line of the rotating shaft 144. When the encoder magnet 19 rotates, the inductive element of the encoder assembly 20 responds to the change in the direction of the magnetic field in the magnetic field, generating an electrical signal. The electrical signal is transmitted to the user end through the wire 21, so that the user can obtain the displacement, position, speed and other data of the rotor housing 14 of the drive device.

[0062] The existing encoder assembly 20 is installed on the stator assembly 13, and the encoder magnet 19 is installed on the rotor housing 14. The encoder assembly 20 and the encoder magnet 19 are non-coaxially arranged. The encoder assembly 20 and the encoder magnet 19 in this embodiment are coaxially arranged, and the encoder magnet 19 has better concentricity with the rotating shaft 144, and the torque output is more stable.

[0063] Optionally, the encoder assembly 20 includes an encoder circuit board 201 and a sensing chip 202 mounted on the encoder circuit board 201 . The sensing chip 202 is a sensing element. The encoder circuit board 201 is electrically connected to the wire 21 .

[0064] Furthermore, the rotor assembly 15 includes a yoke 151 mounted on the inner wall of the installation space 143 and a rotor magnet 152 mounted on the yoke 151. The stator assembly 13 includes a stator core 131. There are multiple rotor magnets 152 and they are evenly distributed along the circumference of the stator core 131. Specifically, the stator assembly 13 includes a stator winding provided on the stator core 131 and the stator core 131. The stator core 131 is installed on the first support shaft 111 of the first support seat 11. The rotor assembly 15 includes a yoke 151 and a rotor magnet 152. The yoke 151 is nested on the inner wall of the circular arc of the installation space 143, and a plurality of rotor magnets 152 are evenly distributed on the circumference of the yoke 151. The yoke 151 and the rotor magnet 152 are arranged on the outside of the stator core 131.

[0065] Optionally, the drive module further includes an end cap 23 having a wiring channel 231. The shaft hole passes through the first support base 11, and the encoder assembly 20 is mounted on the end cap 23. The end cap 23 is mounted on the first support base 11 and covers the opening at one end of the shaft hole. The rotating shaft 144 is rotatably mounted in the shaft hole through the opening at the other end of the shaft hole. One end of the wire 21 is located outside the first support base 11, and the other end of the wire 21 passes through the wiring channel 231 to be electrically connected to the encoder assembly 20. One end of the wire 21 is located outside the first support base 11, and the other end of the wire 21 passes through the wiring channel 231 to be electrically connected to the encoder assembly 20. The end cap 23 is provided with a plurality of threaded holes 232. The encoder circuit board 201 of the encoder assembly 20 is mounted on the end cap 23 via threaded fasteners 24, which may be bolts, screws, etc. Specifically, a positioning pin 25 is provided on the end cover 23 , and the positioning pin 25 is clamped in the pin hole on the encoder circuit board 201 to achieve the positioning of the encoder circuit board 201 , and finally the encoder circuit board 201 of the encoder assembly 20 is locked by the threaded fastener 24 .

[0066] Currently, most external rotor motors have only one central shaft, which passes through the central stator assembly 13. The central shaft has a wiring hole for routing the wire 21. The wiring hole extends from the end face of the central shaft along the axis of the central shaft and finally exits through the outer circumference of the central shaft. The encoder assembly 20 and the three-phase wires of the motor, located within the stator assembly 13, pass through the wiring hole from the outer circumference of the central shaft and exit through the end face of the central shaft, making operation very inconvenient. In addition, existing external rotor motors have poor heat dissipation. Heat dissipation holes are usually provided in the cover to ventilate and dissipate heat from the stator assembly 13. However, the heat dissipation holes can introduce dust and other contaminants to the encoder assembly 20 mounted on the stator assembly 13, affecting the encoder assembly 20 signal and causing unstable motor control. In this embodiment, the encoder magnet 19 can be installed on the rotating shaft 144 on the rotor housing 14, and the encoder assembly 20 is installed on the first support seat 11 through the end cover 23. The encoder assembly 20 and the encoder magnet 19 are both coaxially arranged in the first shaft hole 113, and the lead wires are led out from the end cover 23, which makes assembly more convenient and easy to operate to facilitate wiring. The encoder assembly 20 and the encoder magnet 19 are not arranged in the installation space 143. When the rotor housing 14 opens a heat dissipation hole connected to the installation space 143, dust and the like can also be prevented from affecting the encoder assembly 20 and the encoder magnet 19.

[0067] Furthermore, the rotating shaft 144 and the rotor housing 14 are integrally formed to ensure the strength of the rotor housing 14 .

[0068] The present application also provides a fitness device comprising the aforementioned drive module. Specifically, the fitness device further comprises a tension rope and a frame. The mounting plate 111 of the first support base 11 and the mounting shaft 121 of the second support base 12 are mounted on the frame, allowing for better distribution of tension throughout the device. One end of the tension rope is wound around a winding groove 145, while the other end is pulled directly or indirectly by the user.

[0069] In addition, the drive module of the present application can also be used in equipment for winding cables, such as tractors and elevators.

[0070] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and should not be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will be able to devise other specific implementations of the present invention without inventive effort, and such implementations will fall within the scope of protection of the present invention.

Claims

1. A driving module, characterized in that: include: The first support seat (11) is provided with a first shaft hole (113); A second support seat (12); The rotor housing (14) is a rotary structure; the rotor housing (14) is provided with a transmission part (141) and a winding part (142) in sequence along its axial direction; the transmission part (141) has a rotating shaft (144); stator assembly (13); as well as a rotor assembly (15); The rotating shaft (144) cooperates with the first shaft hole (113) so that the transmission part (141) can be rotatably mounted on the first support seat (11); the winding part (142) can be rotatably mounted on the second support seat (12); an installation space (143) is formed between the inner wall of the transmission part (141) and the outer wall of the first support seat (11); the stator assembly (13) is arranged in the installation space (143) and is fixedly connected to the first support seat (11); and the rotor assembly (15) is arranged in the installation space (143) and is fixedly connected to the rotor housing (14).

2. The driving module according to claim 1, characterized in that: The invention also includes a first bearing (16) and a second bearing (17); the axis of the first bearing (16) and the axis of the second bearing (17) are collinear, the first bearing (16) is installed in the first shaft hole (113) of the first support seat (11) and is sleeved on the rotating shaft (144), the second bearing (17) is installed on the winding portion (142) of the rotor housing (14), and the second support seat (12) is installed on the second bearing (17).

3. The driving module according to claim 2, characterized in that: There are a plurality of first bearings (16) which are spaced apart along the axis of the rotating shaft (144).

4. The driving module according to claim 2, characterized in that: The first support seat (11) includes a mounting plate (111) and a first support shaft (112) connected to the mounting plate (111); the second support seat (12) includes a mounting shaft (121) and a second support shaft (122) connected to the mounting shaft (121); the stator assembly (13) is mounted on the first support shaft (112), the second bearing (17) is sleeved on the second support shaft (122), and the rotor housing (14) is located between the mounting plate (111) and the mounting shaft (121).

5. The driving module according to claim 4, characterized in that: The invention also includes a retaining spring (18); the retaining spring (18) is installed on the second support shaft (122) or the rotor housing (14); a positioning shoulder (123) is provided on the second support shaft (122); the winding portion (142) of the rotor housing (14) is provided with a second shaft hole (147); the second shaft hole (147) is provided with a positioning shoulder (148); the second bearing (17) is installed in the second shaft hole (147); one end of the second bearing (17) abuts against the positioning shoulder (123) and the positioning shoulder (148); and the other end of the second bearing (17) abuts against the retaining spring (18).

6. The driving module according to claim 2, characterized in that: The width of the first bearing (16) along the axial direction is smaller than the width of the second bearing (17) along the axial direction.

7. The driving module according to any one of claims 1 to 6, characterized in that: The winding portion (142) is provided with a winding groove (145), and the winding groove (145) is arranged on the winding portion (142) along the rotation axis (144) of the rotor housing (14).

8. The driving module according to claim 7, characterized in that: The bottom wall of the winding groove (145) is enclosed to form a winding shaft (146), and the diameter of the winding shaft (146) is larger than the diameter of the rotating shaft (144).

9. The driving module according to any one of claims 1 to 6, characterized in that: The invention also includes an encoder magnetic steel (19) and an encoder assembly (20) adapted to the encoder magnetic steel (19); the encoder assembly (20) is installed in the first shaft hole (113), the encoder magnetic steel (19) is installed on the rotating shaft (144), and the encoder assembly (20) and the encoder magnetic steel (19) are both located on the rotating shaft (144) line of the rotating shaft (144) and are arranged at intervals along the rotating shaft (144) line of the rotating shaft (144).

10. The driving module according to claim 9, characterized in that: It also includes an end cover (23) having a wiring channel (231) and a wire (21) electrically connected to the encoder assembly (20); the axial hole passes through the first support seat (11), the encoder assembly (20) is installed on the end cover (23), the end cover (23) is installed on the first support seat (11) and covers the hole at one end of the axial hole, the rotating shaft (144) is rotatably installed in the axial hole from the hole at the other end of the axial hole, one end of the wire (21) is located outside the first support seat (11), and the other end of the wire (21) passes through the wiring channel (231) and is electrically connected to the encoder assembly (20).

11. The driving module according to any one of claims 1 to 6, characterized in that: The rotating shaft (144) and the rotor housing (14) are integrally formed.

12. A fitness equipment, characterized in that: Comprising the drive module according to any one of claims 1 to 11.

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