Motor and fitness device

By setting up a protective space between the protective cover and the rotor end cover inside the motor and connecting the electrical control components through the wiring hole, the problem of the existing motor structure is solved, and the sealing and durability of the motor is improved, and the service life is extended.

CN114530968BActive Publication Date: 2025-08-29DONGGUAN DIRECT DRIVE TECH LTD
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Patent Information

Application Number
CN202210133916.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-02-14
Publication Date
2025-08-29
Estimated Expiration
2042-02-14

AI Technical Summary

Technical Problem

The existing pull rope fitness motor has a single structure and is inconvenient to use, which affects the overall operation and service life of the motor.

Method used

Set up a protective space between the protective cover and the rotor end cover inside the motor, and pass the connecting wire into the internal connection through the wiring hole. The electronic control component is set in the protective space. The protective cover and wiring hole are used to achieve protection of the electronic control component, enhancing sealing and durability.

Benefits of technology

It improves the protection effect of electronic control components, enhances the sealing and dustproof performance of the motor, extends the service life, and has strong structural reliability and practicality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to the field of motor technology, and specifically to a motor and a fitness device, comprising a fixed shaft, a stator assembly fixedly sleeved on the fixed shaft, a rotor assembly rotatably connected to the fixed shaft and covering the stator assembly, and a wire receiving disk connected to the rotor assembly; the rotor assembly comprises a rotor housing and rotor end covers connected to both ends of the rotor housing; the stator assembly is equipped with a protective cover, the protective cover extends to the rotor end cover and forms a protective space between the stator assembly and the rotor end cover; an electronic control component is installed in the protective space; the fixed shaft is provided with a wiring hole, and the wiring hole is connected to the protective space; the present invention has good durability, good sealing and dustproof protection effect, and long service life.
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Description

Technical Field

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

[0002] With the continuous development of society and the continuous improvement of economic levels, people's industrial level is also constantly improving. In this process of industrial development, a variety of motors are often used. Motors, commonly known as motors, are electromagnetic devices that convert and transmit electrical energy according to the law of electromagnetic induction. The application range of motors is very wide, covering all aspects of production and life. Different motors have emerged to meet different functional requirements. While the motor industry is developing rapidly, the motor manufacturing industry still has significant room for improvement in process equipment, technical level, product quality, and production capacity.

[0003] Among them, motor drive is also used in fitness equipment, especially rope fitness, which drives the rope reel for unwinding and reeling. The existing rope motor has a single structure and is inconvenient to use, which affects the overall operation and use of the motor. Therefore, further improvements can be made to the existing motor structure. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides a motor with a protective cover arranged inside, a protective space is formed between the protective cover and the rotor end cover, and connecting wires are inserted into the interior through wiring holes for connection, and an electronic control component is arranged in the protective space, and the connecting wires are used to cooperate with the wiring of the electronic control component, so as to provide good protection effect for the electronic control component in the protective space, good durability, good sealing and dustproof protection effect, and a long service life of the motor and fitness device.

[0005] The technical solution adopted by the present invention is: a motor, including a fixed shaft, a stator assembly fixedly mounted on the fixed shaft, a rotor assembly rotatably connected to the fixed shaft and covering the stator assembly, and a wire receiving disk connected to the rotor assembly; the rotor assembly includes a rotor housing and rotor end covers connected to both ends of the rotor housing, the stator assembly is equipped with a protective cover, the protective cover extends to the rotor end cover, and a protective space is formed between the protective cover and the rotor end cover, an electronic control component is installed in the protective space, the fixed shaft is provided with a wiring hole, and the wiring hole is connected to the protective space.

[0006] A further improvement to the above solution is that wiring holes are provided at both ends of the fixed shaft, connecting wires are provided in the wiring holes, and the connecting wires are connected to the electronic control components and extend to the outside of the fixed shaft.

[0007] A further improvement to the above solution is that a rotary bearing is installed on the fixed shaft near the wiring hole, and the rotor end cover is rotatably connected to the rotary bearing.

[0008] A further improvement to the above solution is that fixing nuts are installed at both ends of the fixed shaft, the wiring hole includes a straight through hole and an inclined hole connecting the straight through hole with the protective space, and the connecting wire passes through the straight through hole and the inclined hole to connect with the electronic control component.

[0009] A further improvement to the above solution is that the stator assembly is provided with a stator frame, the stator frame is fixedly connected to a fixed shaft, the fixed shaft is provided with a fixing pin, the stator frame is provided with a fixing slot, and the fixing pin is snapped into the fixing slot.

[0010] A further improvement to the above solution is that the stator frame is provided with a sinking groove, and the protective cover is fixedly installed in the sinking groove.

[0011] A further improvement to the above scheme is that the protective cover is provided with an installation step and a protective outer edge, the rotor end cover is provided with a protective groove corresponding to the protective outer edge, the protective outer edge is inserted into the protective groove, the electronic control component includes a grating and an encoder, the grating is installed on the rotor end cover, and the encoder is installed on the installation step and corresponds to the grating.

[0012] A further improvement to the above solution is that the rotor end cover is evenly distributed with a plurality of heat dissipation holes on the outside of the protective groove, and the heat dissipation holes are connected to the stator assembly.

[0013] A further improvement to the above solution is that the wire drum includes a winding shaft connected to the rotor end cover and a baffle connected to the winding shaft, the winding shaft is centrally provided with a cavity, and the fixed shaft passes through the cavity.

[0014] A fitness device comprises the motor.

[0015] The beneficial effects of the present invention are:

[0016] Compared to motors used in existing fitness devices, the present invention provides a protective cover within the motor, forming a protective space between the protective cover and the rotor end cap, and allowing connecting wires to be inserted into the interior through wiring holes. Furthermore, an electronic control component is provided within the protective space, and the connecting wires are used to connect the electronic control component. This provides good protection for the electronic control component within the protective space, good durability, good sealing and dustproof protection, and a long service life. Specifically, a fixed shaft, a stator assembly fixedly sleeved on the fixed shaft, a rotor assembly rotatably connected to the fixed shaft and covering the stator assembly, and a wire receiving disk connected to the rotor assembly are provided. The rotor assembly includes a rotor housing and rotor end caps connected to both ends of the rotor housing. The stator assembly is equipped with a protective cover, which extends to the rotor end cap and forms a protective space between the stator end cap and the rotor end cap. The electronic control component is installed within the protective space, and the fixed shaft is provided with a wiring hole, which is connected to the protective space. A protective cover is installed inside the motor to form a protective space, and the grating is installed on the rotor part to cooperate with the encoder of the protective cover to realize the control sensing of the motor. The protective cover can play a sealing and protective role on the structure with good protection effect. At the same time, wiring holes are provided for connecting the connecting wires to the electronic control components. The wiring is routed inside the fixed shaft to further ensure the sealing of the structure, which is reliable and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the three-dimensional structure of the motor of the present invention;

[0018] Figure 2 for Figure 1 Side view of the motor;

[0019] Figure 3 for Figure 2 Cross-sectional view of AA;

[0020] Figure 4 for Figure 1 A side view of the motor from another perspective;

[0021] Figure 5 for Figure 4 A is an enlarged schematic diagram.

[0022] Explanation of the reference numerals: fixed shaft 1, wiring hole 11, straight through hole 111, inclined hole 112, connecting wire 12, rotating bearing 13, fixing nut 14, stator assembly 2, stator frame 21, fixing groove 22, sinking groove 23, rotor assembly 3, rotor housing 31, rotor end cover 32, protective groove 321, heat dissipation hole 322, wire storage disk 4, optical winding shaft 41, baffle 42, protective cover 5, installation step 51, protective outer edge 52, electronic control component 6, grid 61, encoder 62. DETAILED DESCRIPTION

[0023] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the accompanying drawings. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present disclosure.

[0024] It should be noted that when an element is referred to as being “fixed to” another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or there may be an intermediate element.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0026] like Figures 1 to 5 As shown, a motor includes a fixed shaft 1, a stator assembly 2 fixedly mounted on the fixed shaft 1, a rotor assembly 3 rotatably connected to the fixed shaft 1 and covering the stator assembly 2, and a wire receiving disk 4 connected to the rotor assembly 3; the rotor assembly 3 includes a rotor housing 31 and rotor end covers 32 connected to both ends of the rotor housing 31, the stator assembly 2 is installed with a protective cover 5, the protective cover 5 extends to the rotor end cover 32 and forms a protective space between the rotor end cover 32, an electronic control component 6 is installed in the protective space, and the fixed shaft 1 is opened with a wiring hole 11, and the wiring hole 11 is connected to the protective space.

[0027] Both ends of the fixed shaft 1 are provided with wiring holes 11, and connecting wires 12 are provided in the wiring holes 11. The connecting wires 12 are connected to the electronic control components 6 and extend to the outside of the fixed shaft 1. The connecting wires 12 pass through the wiring holes 11 for connecting to electricity, which makes it convenient to extend the lines to the outside and facilitate wiring.

[0028] A rotating bearing 13 is installed near the wiring hole 11 of the fixed shaft 1, and the rotor end cover 32 is rotatably connected to the rotating bearing 13. The rotating bearing 13 is arranged to cooperate with the rotation of the rotor end cover 32, so that the rotor end cover 32 can be rotatably connected to the fixed shaft 1, and the rotation of the structure is stable and reliable.

[0029] Both ends of the fixed shaft 1 are installed with fixing nuts 14, and the wiring hole 11 includes a straight hole 111 and an inclined hole 112 that connects the straight hole 111 with the protective space. The connecting wire 12 passes through the straight hole 111 and the inclined hole 112 to be connected to the electronic control component 6, and is fixedly installed on the fitness device through the fixing nut 14. The structure is easy to assemble and stable and reliable. In addition, the wiring hole 11 is provided with a straight hole 111 and an inclined hole 112 to facilitate the direction of the connecting wire 12.

[0030] The stator assembly 2 includes a stator frame 21, which is fixedly connected to the fixed shaft 1. The fixed shaft 1 is provided with a fixing pin. The stator frame 21 has a fixing slot 22, into which the fixing pin engages. The stator frame 21 also includes a recessed groove 23, into which the protective cover 5 is fixedly mounted. The recessed groove 23 facilitates the installation of the protective cover 5, making the structure easy to install and providing effective protection for the internal electronic control components. The stator frame 21 is fixedly connected to the fixed shaft 1 through the cooperation of the fixing slot 22 and the fixing pin, ensuring the stability of the two fixed connections.

[0031] The protective cover 5 is provided with an installation step 51 and a protective outer edge 52. The rotor end cover 32 is provided with a protective groove 321 corresponding to the protective outer edge 52. The protective outer edge 52 is inserted into the protective groove 321. The electronic control component 6 includes a grating 61 and an encoder 62. The grating 61 is installed on the rotor end cover 32. The encoder 62 is installed on the installation step 51 and corresponds to the grating 61. The protective outer edge 52 cooperates with the protective groove 321 to form a labyrinth channel, which can play a sealing and protective role on the structure, especially for the grating 61 and the encoder 62. The protection effect is good and the service life is improved.

[0032] The rotor end cover 32 is located on the outside of the protective groove 321 and has multiple heat dissipation holes 322 evenly distributed. The heat dissipation holes 322 are connected to the stator assembly 2. The heat dissipation holes 322 can ventilate and dissipate heat for the stator assembly 2, ensuring the heat dissipation effect of the stator structure, improving the service life, and being particularly suitable for high-efficiency operation.

[0033] The wire storage drum 4 includes a winding shaft 41 connected to the rotor end cover 32, and a baffle 42 connected to the winding shaft 41. The winding shaft 41 has a cavity in the center, and the fixed shaft 1 passes through the cavity. The drawstring of the fitness device is stored through the winding shaft 41, which is convenient for winding and suitable for use in drawstring fitness equipment.

[0034] A fitness device adopts the motor with the above structure, which is easy to use and has a reliable structure.

[0035] The present invention sets a protective cover 5 inside the motor, forming a protective space between the protective cover 5 and the rotor end cover 32, and inserting a connecting wire 12 into the internal connection through a wiring hole 11. In addition, an electronic control component 6 is set in the protective space, and the connecting wire 12 is used to connect the electronic control component 6. The protective effect of the electronic control component 6 in the protective space is good, the durability is good, the sealing and dustproof protection effect is good, and the service life is long. Specifically, a fixed shaft 1, a stator component 2 fixedly sleeved on the fixed shaft 1, a rotor component 3 rotatably connected to the fixed shaft 1 and covering the stator component 2, and a wire receiving disk 4 connected to the rotor component 3 are set; the rotor component 3 includes a rotor housing 31 and a rotor end cover 32 connected to both ends of the rotor housing 31. The stator component 2 is installed with a protective cover 5, which extends to the rotor end cover 32 and forms a protective space between the stator end cover 32. The electronic control component 6 is installed in the protective space, and the fixed shaft 1 is provided with a wiring hole 11, which is connected to the protective space. A protective cover 5 is installed in the motor to form a protective space, and the grating 61 is installed on the rotor part to cooperate with the encoder 62 of the protective cover 5 to realize the control sensing of the motor. The protective cover 5 can play a sealing and protective role on the structure, and the protection effect is good. At the same time, a wiring hole 11 is provided for connecting the connecting wire 12 to the electronic control component. The wiring is routed inside the fixed shaft 1, further ensuring the sealing of the structure, the structure is reliable, and the practicality is strong.

[0036] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A motor, characterized in that: The invention comprises a fixed shaft, a stator assembly fixedly sleeved on the fixed shaft, a rotor assembly rotatably connected to the fixed shaft and covering the stator assembly, and a wire receiving disk connected to the rotor assembly; the rotor assembly comprises a rotor housing and rotor end covers connected to both ends of the rotor housing, the stator assembly is equipped with a protective cover, the protective cover extends to the rotor end cover and forms a protective space with the rotor end cover, an electric control component is installed in the protective space, the fixed shaft is provided with a wiring hole, and the wiring hole is connected to the protective space; the wire receiving disk comprises a winding shaft connected to the rotor end cover, and a winding shaft connected to the winding shaft. The baffle of the bobbin has a cavity in the center of the winding bobbin, and the fixed shaft passes through the cavity; the protective cover is provided with an installation step and a protective outer edge, the rotor end cover is provided with a protective groove corresponding to the protective outer edge, and the protective outer edge is inserted into the protective groove; the electronic control component includes a grating and an encoder, the grating is installed on the rotor end cover, and the encoder is installed on the installation step and corresponds to the grating; the stator assembly is provided with a stator frame, the stator frame is fixedly connected to the fixed shaft, the fixed shaft is provided with a fixing pin, the stator frame is provided with a fixing groove, and the fixing pin is stuck in the fixing groove.

2. The motor according to claim 1, characterized in that: Both ends of the fixed shaft are provided with wiring holes, and connecting wires are arranged in the wiring holes. The connecting wires are connected to the electronic control components and extend to the outside of the fixed shaft.

3. The motor according to claim 1, characterized in that: A rotary bearing is installed on the fixed shaft near the wiring hole, and the rotor end cover is rotatably connected to the rotary bearing.

4. The motor according to claim 2, characterized in that: Both ends of the fixed shaft are equipped with fixing nuts, the wiring hole includes a straight hole and an inclined hole connecting the straight hole with the protective space, and the connecting wire passes through the straight hole and the inclined hole to be connected to the electronic control component.

5. The motor according to claim 1, characterized in that: The stator frame is provided with a sinking groove, and the protective cover is fixedly installed in the sinking groove.

6. The motor according to claim 1, characterized in that: The rotor end cover is located on the outer side of the protective groove and has a plurality of heat dissipation holes evenly distributed thereon, and the heat dissipation holes are connected to the stator assembly.

7. A fitness device, characterized in that: The motor comprises the motor according to any one of claims 1 to 6.

Citation Information

Patent Citations

  • Bidirectional wiring structure, motor and fitness device

    CN217240433U

  • Protective structure, motor and fitness device

    CN217307396U