Roller brush motor

Abstract

This utility model relates to the field of motor power technology, specifically a roller brush motor, comprising a fixed shaft, a stator assembly, a rotor assembly, a control assembly, an end cover, an output shaft, and a housing. One end of the housing is provided with an output connection end, and the other end is connected to the end cover. The fixed shaft is disposed within the housing, with one end provided with a first rotary connecting element connecting to the output connection end, and the other end provided with a second rotary connecting element connecting to the end cover. The stator assembly is disposed on the fixed shaft, and the rotor assembly is disposed on the inner wall of the housing and opposite to the stator assembly. The control assembly is disposed on the stator assembly. The fixed shaft is provided with a mating groove, and the control assembly is provided with a connector; the mating groove is used for connector fixation. This utility model, through a reasonable structural design, improves the stability, power transmission efficiency, protection performance, and ease of installation and maintenance of the motor.

Description

Technical Field

[0001] This utility model relates to the field of motor power technology, and in particular to a roller brush motor. Background Technology

[0002] In today's cleaning equipment industry, roller brushes are widely used as core cleaning components in various cleaning tools, such as robotic vacuum cleaners and handheld vacuum cleaners. The efficient operation of roller brushes depends on the power provided by the roller brush motor. However, the existing roller brush motor structural design has many problems that urgently need improvement.

[0003] From a stability perspective, the stator and rotor assembly structures of some roller brush motors are not robust enough. The stator assembly is prone to displacement or wobbling during operation, which not only disrupts the internal magnetic field and reduces motor efficiency but also generates additional noise and vibration, affecting the user experience. Furthermore, this unstable structure accelerates wear on motor components, shortening the motor's lifespan. Regarding power transmission, the design of the rotating connection section in existing roller brush motors has flaws. The fit between the rotating connection element and the rotating connection shaft is not precise enough, easily leading to power transmission losses. This prevents the motor's output power from being fully converted into the rotational power of the roller brush, resulting in energy waste.

[0004] Furthermore, existing roller brush motors are inadequate in terms of ease of maintenance and installation. Therefore, improving the structural design of roller brush motors is of significant practical importance. Utility Model Content

[0005] To address the aforementioned issues, this utility model, through a rational structural design, improves the stability, power transmission efficiency, protective performance, and ease of installation and maintenance of the roller brush motor.

[0006] The technical solution adopted by this utility model is as follows: a roller brush motor, including a fixed shaft, a stator assembly, a rotor assembly, a control assembly, an end cover, an output shaft, and a housing. One end of the housing is provided with an output connection end, and the other end is connected to the end cover. The fixed shaft is disposed inside the housing, with one end provided with a first rotary connecting element connected to the output connection end and the other end provided with a second rotary connecting element connected to the end cover. The stator assembly is disposed on the fixed shaft, and the rotor assembly is disposed on the inner wall of the housing and opposite to the stator assembly. The control assembly is disposed on the stator assembly. The fixed shaft is provided with a mating groove, and the control assembly is provided with a connector. The mating groove is used to fix the connector. One end of the fixed shaft is provided with a fixed mounting part, and the fixed mounting part is provided with a sealing element. The sealing element is used to seal between the first rotary connecting element, the fixed shaft, and the end cover. The output shaft is disposed at the output connection end.

[0007] A further improvement to the above scheme is that the fixed shaft is provided with a stator connecting end, and stator support portions are provided at both ends of the stator connecting end. The stator support portions are used to fix and connect the stator assembly. The output connecting end is provided with a rotary connecting groove, and the second rotary connecting element is disposed in the rotary connecting groove. The fixed shaft is provided with a rotary connecting portion, and the rotary connecting portion is connected to the inner diameter of the second rotary connecting element and fixed by screws.

[0008] A further improvement to the above scheme is that the stator assembly includes a stator support, an insulating support, and a stator winding. The stator support is mounted on a fixed shaft, the insulating support is mounted on the stator support, and the stator winding is mounted on the insulating support.

[0009] A further improvement to the above scheme is that the stator support is provided with multiple stator winding arms, and there are two insulating supports, which are respectively provided at both ends of the stator support. The insulating support is provided with a winding arm portion, and the winding arm portion is provided with a winding arm slot and a winding slot. The winding arm slot is engaged with the stator winding arm, and the stator winding is wound in the winding slot.

[0010] A further improvement to the above solution is that the rotor assembly includes a rotor support and rotor magnets. The rotor support is arranged in a ring shape inside the housing. Multiple rotor magnets are arranged in a ring and evenly distributed on the rotor support. The rotor support is used to fix the rotor magnets inside the housing. The cross-sectional shape of the rotor support is L-shaped. The first and second surfaces of the rotor support respectively fit against the wall surface of the housing and the inner surface of the output connection end cover. The first and second surfaces are perpendicular to each other. Multiple magnet slots are provided on the rotor support. The multiple magnet slots are evenly distributed in a ring on the rotor support. One end of the rotor magnet is inserted into the magnet slot.

[0011] A further improvement to the above scheme is that a sealing inner groove is provided between the fixed shaft and the first rotary connecting element and the sealing element, a sealing inner ring is provided on the sealing inner groove, and a fixing snap ring is provided on the outside of the fixed shaft. The fixing snap ring is used to fix one side of the sealing element, so that the inner side of the sealing element seals against the sealing inner ring and is pressed tightly towards the first rotary connecting element.

[0012] A further improvement to the above solution is that the sealing element is provided with a sealing lip, which extends toward the end cover and abuts against the end cover; a protective cover is provided on the outer side of the sealing element, which extends toward the end cover.

[0013] A further improvement to the above solution is that the end cap is provided with a fixed inner ring and a fixed outer ring, the first rotary connecting element is provided on the fixed inner ring, and the fixed outer ring is used to connect one end of the outer shell; the fixed inner ring is provided with a fixed step, and the fixed step is used to fix the first rotary connecting element; the fixed outer ring is provided with a sealing outer groove, and the sealing outer groove is provided with a sealing outer ring, and the sealing outer ring is used to seal between the fixed outer ring and the outer shell.

[0014] A further improvement to the above solution is that the output shaft is provided with an output connecting plate, an output connecting shaft and an output positioning shaft. The output connecting plate is fixed to the output connecting end by screws, the output connecting shaft is set on the output connecting plate, and the output positioning shaft is set on the output connecting shaft.

[0015] A further improvement to the above solution is that an output sealing groove is provided on the side of the output connection plate facing the output connection end, and an output sealing ring is provided on the output sealing groove. The output sealing ring is used to seal the connection between the output connection end and the output connection plate.

[0016] A further improvement to the above scheme is that multiple output positioning shafts are provided, and the multiple output positioning shafts are evenly distributed in a ring around the output connecting shaft as the axis.

[0017] The beneficial effects of this utility model are:

[0018] Compared to existing roller brush motors, this invention offers superior structural stability. The fixed shaft is connected to the output connection end and end cover at both ends via a first and a second rotary connecting element, providing robust support for the motor's internal structure. Even under high-speed operation and vibrations from the cleaning equipment, the relative positions of all components remain stable, preventing malfunctions caused by component displacement and ensuring reliable motor operation. Furthermore, the stator assembly is mounted on the fixed shaft, while the rotor assembly is positioned opposite the stator assembly on the inner wall of the housing, resulting in a rational and compact layout that enhances the motor's structural stability and overall performance. The sealing element in the fixed mounting section effectively seals the first rotary connecting element against the fixed shaft and end cover. In cleaning equipment usage scenarios, contact with water, dust, and other impurities is possible; the sealing element prevents these substances from entering the motor, protecting its electrical and mechanical components, extending its lifespan, and reducing maintenance costs. The control component is mounted on the stator assembly, and the mating groove on the fixed shaft secures the connector for the control component, facilitating connection and signal transmission between the control component and external devices. This precise mating design ensures stable control signal transmission, enabling the motor to be precisely controlled according to the cleaning equipment's operational requirements, improving cleaning efficiency and quality. The output shaft is located at the output connection end, directly powering the roller brush and ensuring its efficient rotation. This reduces energy loss during power transmission, improves the motor's energy conversion efficiency, and lowers energy consumption. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the roller brush motor of this utility model;

[0020] Figure 2 for Figure 1 A three-dimensional schematic diagram of a medium-sized roller brush motor from another perspective;

[0021] Figure 3 for Figure 1 Front view schematic diagram of the middle roller brush motor;

[0022] Figure 4 for Figure 3 Sectional view of AA;

[0023] Figure 5 for Figure 3 Sectional view of BB;

[0024] Figure 6 for Figure 4 Enlarged diagram of point A in the diagram;

[0025] Figure 7 for Figure 4 Enlarged diagram of point B in the diagram;

[0026] Figure 8 for Figure 1 A partial structural diagram of the medium-sized roller brush motor.

[0027] Explanation of reference numerals in the attached drawings: Fixed shaft 1, First rotary connecting element 11, Second rotary connecting element 12, Stator connecting end 13, Stator support part 131, Rotary connecting part 14, Sealing inner groove 15, Sealing inner ring 151, Fixed snap ring 16, Abutting groove 17, Stator assembly 2, Stator bracket 21, Stator winding arm 211, Insulating bracket 22, Winding arm part 221, Winding arm slot 222, Winding slot 223, Stator winding 23, Rotor assembly 3, Rotor bracket 31, First surface 311 312, second surface, magnetic tile slot, 313, rotor magnetic tile, 32, control component, 4, connector, 41, end cover, 5, fixing inner ring, 51, fixing step, 511, fixing outer ring, 52, sealing outer groove, 521, sealing outer ring, 522, output shaft, 6, output connecting plate, 61, output sealing groove, 611, output sealing ring, 612, output connecting shaft, 62, output positioning shaft, 63, housing, 7, output connecting end, 71, rotating connecting groove, 711, sealing element, 8, sealing outer lip, 82, protective cover. Detailed Implementation

[0028] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can 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 complete understanding of the disclosure of this utility model.

[0029] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Figures 1-8As shown, in one embodiment of this utility model, a roller brush motor is disclosed, including a fixed shaft 1, a stator assembly 2, a rotor assembly 3, a control assembly 4, an end cover 5, an output shaft 6, and a housing 7. One end of the housing 7 is provided with an output connection end 71, and the other end is connected to the end cover 5. The fixed shaft 1 is disposed inside the housing 7, with one end provided with a first rotary connecting element 11 connected to the output connection end 71, and the other end provided with a second rotary connecting element 12 connected to the end cover 5. The stator assembly 2 is disposed on the fixed shaft 1, and the rotor assembly 3 is disposed on the inner wall of the housing 7 and opposite to the stator assembly 2. The control assembly 4 is disposed on the stator assembly 2. The fixed shaft 1 is provided with a mating groove 17, and the control assembly 4 is provided with a connector 41. The mating groove 17 is used to fix the connector 41. One end of the fixed shaft 1 is provided with a fixed mounting part 12, and the fixed mounting part 12 is provided with a sealing element 8. The sealing element 8 is used to seal between the first rotary connecting element 11 and the fixed shaft 1 and the end cover 5. The output shaft 6 is disposed on the output connection end 71. In terms of structural stability, the fixed shaft 1 is connected to the output connection end 71 and the end cover 5 at both ends via the first rotary connecting element 11 and the second rotary connecting element 12, respectively, providing stable support for the internal structure of the motor. Even under the vibration and impact generated by the high-speed operation of the cleaning equipment, the relative positions of each component can be kept stable, avoiding failures caused by component displacement and ensuring reliable motor operation. Meanwhile, the stator assembly 2 is mounted on the fixed shaft 1, and the rotor assembly 3 is mounted opposite the stator assembly 2 on the inner wall of the housing 7, resulting in a reasonable and compact layout that makes the motor structure more stable and improves the overall performance of the motor. The sealing element 8 provided in the fixed mounting part 12 effectively seals the first rotary connecting element 11 with the fixed shaft 1 and the end cover 5. In the usage scenarios of the cleaning equipment, it may come into contact with water, dust, and other impurities. The sealing element 8 prevents these substances from entering the motor, protecting the electrical and mechanical components of the motor, extending the motor's service life, and reducing maintenance costs. The control assembly 4 is mounted on the stator assembly 2, and the mating groove 17 of the fixed shaft 1 is used to fix the connector 41 of the control assembly 4, facilitating the connection and signal transmission between the control assembly 4 and external devices. The precise docking design ensures stable transmission of control signals, enabling the motor to be precisely controlled according to the working requirements of the cleaning equipment, thereby improving cleaning efficiency and quality. The output shaft 6, located at the output connection end 71, directly powers the roller brush, ensuring its efficient rotation. This reduces energy loss during power transmission, improves the motor's energy conversion efficiency, and lowers energy consumption.

[0031] The fixed shaft 1 is provided with a stator connecting end 13, and stator support portions 131 are provided at both ends of the stator connecting end 13. The stator support portions 131 are used to fix and connect the stator assembly 2. The output connecting end 71 is provided with a rotary connecting groove 711, and the second rotary connecting element 12 is disposed in the rotary connecting groove 711. The fixed shaft 1 is provided with a rotary connecting portion 14, which is connected to the inner diameter of the second rotary connecting element 12 and fixed by screws. In this embodiment, the stator support portions 131 are provided at both ends of the stator connecting end 13 of the fixed shaft 1, which can provide stable and precise fixation for the stator assembly 2. This ensures the positional accuracy of the stator assembly 2 during motor operation and prevents the stator assembly 2 from shifting due to vibration or other external forces. Precise positioning is conducive to generating stable electromagnetic induction between the stator assembly 2 and the rotor assembly 3, ensuring that the motor achieves stable torque output, making the roller brush rotate more smoothly, and improving the cleaning effect of the cleaning equipment. The rotary connecting groove 711 of the output connecting end 71 provides suitable installation space for the second rotary connecting element 12. The rotating connecting part 14 of the fixed shaft 1 is connected to the inner diameter of the second rotating connecting element 12 and fixed with screws, enhancing the reliability and stability of the connection. During motor operation, it can effectively transmit power, reduce power loss during transmission, and improve the energy conversion efficiency of the motor. At the same time, the stable rotating connection reduces vibration and noise, improving the user experience.

[0032] See Figure 8As shown, the stator assembly 2 includes a stator support 21, an insulating support 22, and a stator winding 23. The stator support 21 is mounted on a fixed shaft 1, the insulating support 22 is mounted on the stator support 21, and the stator winding 23 is mounted on the insulating support 22. Specifically, the stator support 21 has multiple stator winding arms 211, and there are two insulating supports 22, which are respectively located at both ends of the stator support 21. Each insulating support 22 has a winding arm portion 221, which has a winding arm slot 222 and a winding slot 223. The winding arm slot 222 is engaged with the stator winding arm 211, and the stator winding 23 is wound around the winding slot 223. In this embodiment, the stator support 21 is mounted on the fixed shaft 1, providing stable support for the entire stator assembly 2 and ensuring its position is fixed during motor operation. Two insulating supports 22 are respectively installed at both ends of the stator support 21. The arm slots 222 of the arm portion 221 are engaged with the stator arm 211, enhancing the connection strength between components and preventing displacement or loosening of parts under the vibration and centrifugal force generated by motor operation, thus ensuring stable motor operation. The insulating supports 22 effectively isolate the stator winding 23 from the stator support 21, avoiding current leakage and short circuits, and improving the safety and reliability of the motor. The winding slots 223 provide precise winding space for the stator winding 23, making the windings neat and compact, which helps to enhance the electromagnetic induction effect of the motor, increase the power density and efficiency of the motor, and thus improve the dynamic performance of the roller brush, making the cleaning work more efficient.

[0033] The rotor assembly 3 includes a rotor support 31 and rotor magnets 32. The rotor support 31 is arranged in a ring within the housing 7. Multiple rotor magnets 32 are arranged in a ring on the rotor support 31, which secures the rotor magnets 32 within the housing 7. The rotor support 31 has an L-shaped cross-section. The first surface 311 and the second surface 312 of the rotor support 31 respectively abut against the wall of the housing 7 and the inner surface of the output connection end 71 cover 5, with the first surface 311 and the second surface 312 perpendicular to each other. Multiple magnet slots 313 are provided on the rotor support 31, arranged in a ring on the rotor support 31. One end of each rotor magnet 32 ​​is inserted into a magnet slot 313. In this embodiment, the rotor support 31 is arranged in a ring within the housing 7, and the multiple magnet slots 313 are evenly distributed in a ring, providing a clear installation position for the rotor magnets 32. Operators can quickly complete the installation by simply inserting one end of the magnetic tile into the corresponding slot, greatly improving production efficiency and reducing labor costs. The L-shaped rotor bracket 31 has its first surface 311 and second surface 312 respectively attached to the wall of the outer casing 7 and the inner side of the output connection end 71 cover 5, and are perpendicular to each other, enhancing the tightness of the connection between the bracket and other motor components. At the same time, the magnetic tiles inserted into the slots effectively prevent the magnetic tiles from loosening or falling off due to centrifugal force and other factors when the motor is running at high speed, ensuring the integrity of the rotor assembly 3, reducing the probability of failure, and extending the service life of the motor. The rotor magnetic tiles 32 are evenly distributed in a ring, which can generate a uniform and stable magnetic field. The stable magnetic field helps the motor achieve smooth torque output, making the roller brush rotation more stable and efficient, and reducing noise and vibration during motor operation.

[0034] A sealing inner groove 15 is provided between the fixed shaft 1 and the first rotary connecting element 11 and the sealing element 8. A sealing inner ring 151 is provided on the sealing inner groove 15. A fixing snap ring 16 is provided on the outer side of the fixed shaft 1. The fixing snap ring 16 is used to fix one side of the sealing element 8, ensuring that the inner side of the sealing element 8 is in sealing contact with the sealing inner ring 151 and is pressed tightly against the first rotary connecting element 11. In this embodiment, the sealing contact between the sealing inner ring 151 and the inner side of the sealing element 8 effectively prevents external water, dust, and other impurities from entering the motor. Especially in the application of cleaning equipment, this avoids damage to internal motor components caused by the intrusion of these impurities, ensuring the normal operation of the motor's electrical and mechanical components and extending the motor's service life. The fixing snap ring 16 fixes one side of the sealing element 8 and presses it tightly against the first rotary connecting element 11. This prevents the sealing element 8 from shifting due to vibration or other external forces during motor operation, ensuring the reliability and stability of the seal. A stable sealing structure helps maintain the pressure balance inside the motor, reducing the adverse effects of pressure changes on motor performance, thereby ensuring stable power output from the motor and enabling the roller brush to work continuously and efficiently.

[0035] The sealing element 8 is provided with a sealing lip 81, which extends toward and abuts against the end cover 5; a protective cover 82 is provided on the outer side of the sealing element 8, which extends toward the end cover 5. In this embodiment, the sealing lip 81 of the sealing element 8 extends toward and abuts against the end cover 5, forming an effective sealing barrier. This prevents external dust, moisture, and other impurities from entering the motor, avoiding corrosion and damage to key components such as the stator and rotor, thereby extending the service life of the motor and improving its operational stability and reliability. In actual cleaning scenarios, hair and other debris can easily be drawn into the motor as the roller brush rotates, becoming entangled on the sealing element 8 or other components. The protective cover 82, extending toward the end cover 5, acts like a protective shield, effectively preventing hair and other debris from getting tangled on the sealing element 8 and related motor structures. This reduces motor malfunctions and maintenance costs caused by hair entanglement, ensures normal motor operation without interference, and guarantees the cleaning efficiency and performance of the roller brush.

[0036] The end cap 5 is provided with a fixed inner ring 51 and a fixed outer ring 52. The first rotary connecting element 11 is disposed on the fixed inner ring 51, and the fixed outer ring 52 is used to connect one end of the outer shell 7. The fixed inner ring 51 is provided with a fixed step 511, which is used to fix the first rotary connecting element 11. The fixed outer ring 52 is provided with a sealing outer groove 521, which is provided with a sealing outer ring 522, which is used to seal between the fixed outer ring 52 and the outer shell 7. In this embodiment, the fixed inner ring 51 of the end cap 5 is provided with a fixed step 511, which allows the rotary connecting element to be firmly installed on the fixed step 511. This ensures that the rotary connecting element is accurately and stably positioned during motor operation, preventing displacement or shaking due to loosening. This ensures the accuracy of the internal transmission of the motor, makes the roller brush rotate more smoothly, and improves the efficiency and quality of cleaning work. The fixed outer ring 52 is used to connect one end of the housing 7, and a sealing outer groove 521 and a sealing outer ring 522 are provided on the fixed outer ring 52, which effectively enhances the sealing performance of the motor. The sealing outer ring 522 fills the gap between the fixed outer ring 52 and the housing 7, preventing external dust, moisture and other impurities from entering the motor. This avoids these impurities from corroding and damaging key components such as the stator and rotor inside the motor, thereby extending the service life of the motor and reducing the failure rate and maintenance costs.

[0037] The output shaft 6 is provided with an output connecting plate 61, an output connecting shaft 62, and an output positioning shaft 63. The output connecting plate 61 is fixed to the output connecting end 71 with screws. The output connecting shaft 62 is mounted on the output connecting plate 61, and the output positioning shaft 63 is mounted on the output connecting shaft 62. Specifically, the output connecting plate 61 has an output sealing groove 611 on the side facing the output connecting end 71, and an output sealing ring 612 is provided on the output sealing groove 611. The output sealing ring 612 is used to seal between the output connecting end 71 and the output connecting plate 61. Multiple output positioning shafts 63 are provided, and the multiple output positioning shafts 63 are evenly distributed in a ring around the output connecting shaft 62. In this embodiment, the output connecting plate 61 is fixed to the output connecting end 71 with screws, which can ensure a reliable connection between the output shaft 6 and the output connecting end 71, prevent loosening or displacement during motor operation, ensure stable power transmission, and make the roller brush run smoothly. Multiple output positioning shafts 63, evenly distributed in a ring around the output connecting shaft 62, further enhance the positioning accuracy and stability of the output shaft 6, ensuring good coaxiality during high-speed rotation and reducing vibration and noise. An output sealing groove 611 is provided on the side of the output connecting plate 61 facing the output connecting end 71, and an output sealing ring 612 is installed. This effectively prevents leakage of lubricating oil inside the motor and prevents external dust, moisture, and other impurities from entering the motor. This ensures proper lubrication and a suitable working environment for all internal components of the motor, extends its service life, and reduces the failure rate caused by poor sealing.

[0038] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A roller brush motor, characterized in that: The device includes a fixed shaft, a stator assembly, a rotor assembly, a control assembly, an end cover, an output shaft, and a housing. One end of the housing has an output connection end, and the other end is connected to the end cover. The fixed shaft is disposed within the housing, with one end having a first rotary connecting element connected to the output connection end and the other end having a second rotary connecting element connected to the end cover. The stator assembly is mounted on the fixed shaft, and the rotor assembly is disposed on the inner wall of the housing and opposite to the stator assembly. The control assembly is mounted on the stator assembly. The fixed shaft has a mating groove, and the control assembly has a connector. The mating groove is used to fix the connector. One end of the fixed shaft has a fixing mounting part, and the fixing mounting part has a sealing element for sealing between the first rotary connecting element, the fixed shaft, and the end cover. The output shaft is disposed at the output connection end.

2. The roller brush motor according to claim 1, characterized in that: The fixed shaft is provided with a stator connecting end, and stator support portions are provided at both ends of the stator connecting end. The stator support portions are used to fix and connect the stator assembly. The output connecting end is provided with a rotary connecting groove, and the second rotary connecting element is disposed in the rotary connecting groove. The fixed shaft is provided with a rotary connecting portion, and the rotary connecting portion is connected to the inner diameter of the second rotary connecting element and fixed by screws.

3. The roller brush motor according to claim 1, characterized in that: The stator assembly includes a stator support, an insulating support, and a stator winding. The stator support is mounted on a fixed shaft, the insulating support is mounted on the stator support, and the stator winding is mounted on the insulating support.

4. The roller brush motor according to claim 3, characterized in that: The stator support is provided with multiple stator winding arms, and there are two insulating supports, which are respectively located at both ends of the stator support. Each insulating support is provided with a winding arm portion, which is provided with a winding arm slot and a winding slot. The winding arm slot is engaged with the stator winding arm, and the stator winding is wound in the winding slot.

5. The roller brush motor according to claim 1, characterized in that: The rotor assembly includes a rotor support and rotor magnets. The rotor support is arranged in a ring inside the housing. Multiple rotor magnets are arranged in a ring on the rotor support. The rotor support is used to fix the rotor magnets inside the housing. The cross-sectional shape of the rotor support is L-shaped. The first and second surfaces of the rotor support respectively fit against the wall of the housing and the inner surface of the output connection end cover. The first and second surfaces are perpendicular to each other. Multiple magnet slots are provided on the rotor support. The multiple magnet slots are arranged in a ring on the rotor support. One end of the rotor magnet is inserted into the magnet slot.

6. The roller brush motor according to claim 1, characterized in that: The fixed shaft is provided with a sealing inner groove between the first rotary connecting element and the sealing element. A sealing inner ring is provided on the sealing inner groove. A fixing snap ring is provided on the outside of the fixed shaft. The fixing snap ring is used to fix one side of the sealing element and make the inner side of the sealing element seal against the sealing inner ring and press it tightly towards the first rotary connecting element.

7. The roller brush motor according to claim 1, characterized in that: The sealing element is provided with a sealing lip, which extends toward the end cover and abuts against the end cover; a protective cover is provided on the outer side of the sealing element, which extends toward the end cover.

8. The roller brush motor according to claim 1, characterized in that: The end cap is provided with a fixed inner ring and a fixed outer ring. The first rotary connecting element is disposed on the fixed inner ring, and the fixed outer ring is used to connect one end of the outer shell. The fixed inner ring is provided with a fixed step, which is used to fix the first rotary connecting element. The fixed outer ring is provided with a sealing outer groove, which is provided with a sealing outer ring, which is used to seal between the fixed outer ring and the outer shell.

9. The roller brush motor according to claim 1, characterized in that: The output shaft is provided with an output connecting plate, an output connecting shaft and an output positioning shaft. The output connecting plate is fixed to the output connecting end by screws, the output connecting shaft is set on the output connecting plate and the output positioning shaft is set on the output connecting shaft.

10. The roller brush motor according to claim 9, characterized in that: The output connection plate has an output sealing groove on the side facing the output connection end, and an output sealing ring is provided on the output sealing groove. The output sealing ring is used to seal the connection between the output connection end and the output connection plate. The output positioning shaft is provided in multiple ways, and the multiple output positioning shafts are evenly distributed in a ring around the output connecting shaft as the axis.

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