Rolling brush motor output connecting mechanism

Abstract

This utility model relates to the field of motor power technology, specifically a roller brush motor output connection mechanism, including a fixed shaft, a stator assembly, an end cover, a housing, a rotor assembly, and an output shaft. The stator assembly is mounted on the fixed shaft. The housing has a control connection portion and an output connection portion at both ends, respectively. The end cover is located on the control connection portion. The fixed shaft has a first rotary connecting element and a second rotary connecting element at both ends, respectively. The first rotary connecting element is located on the end cover, and the second rotary connecting element is located on the output connection portion. The rotor assembly is mounted on the housing and opposite to the stator assembly. The output shaft is located on the output connection portion. This utility model, through its 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 an output connection mechanism for 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, floor scrubbers, 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] The stator and rotor assembly mounting structures of some existing 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. It also accelerates wear on motor components and shortens the motor's lifespan. Regarding power transmission, the design of the rotating connection section in existing roller brush motors is flawed. 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. Utility Model Content

[0004] 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 output connection mechanism.

[0005] The technical solution adopted by this utility model is: a roller brush motor output connection mechanism, including a fixed shaft, a stator assembly, an end cover, a housing, a rotor assembly, and an output shaft. The stator assembly is disposed on the fixed shaft. The housing has a control connection part and an output connection part at both ends. The end cover is disposed on the control connection part. The fixed shaft has a first rotary connection element and a second rotary connection element at both ends. The first rotary connection element is disposed on the end cover, and the second rotary connection element is disposed on the output connection part. The rotor assembly is disposed on the housing and opposite to the stator assembly. The output shaft is disposed on the output connection part.

[0006] A further improvement to the above scheme is that one end of the fixed shaft is provided with a fixed connection end, which is connected to the second rotary connection element by a screw; one side of the output connection part protrudes outward to form a mounting groove on the inner side, and the second rotary connection element is disposed in the mounting groove.

[0007] A further improvement to the above scheme is that the stator assembly includes a stator support and a stator winding. The stator support is mounted on a fixed shaft and has multiple stator winding arms. The stator windings are wound around the stator winding arms.

[0008] 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 rotating connecting element is disposed on the fixed inner ring, and the fixed outer ring is used to connect one end of the outer shell.

[0009] A further improvement to the above scheme is that the fixed inner ring is provided with a fixed step, which is used for the fixed installation of 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 for sealing between the fixed outer ring and the outer shell.

[0010] A further improvement to the above solution is that the rotor assembly includes a rotor support and a rotor magnet. The rotor support is used to fix the rotor magnet to the inner wall of the housing. The rotor support is provided with a fixing slot, and one end of the rotor magnet is inserted into the fixing slot.

[0011] A further improvement to the above solution is that the output connection part is provided with a positioning groove, and the output shaft is provided with a positioning boss, which is used to cooperate with the positioning groove.

[0012] 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 part 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.

[0013] 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 part, 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 part and the output connection plate.

[0014] 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.

[0015] The beneficial effects of this utility model are:

[0016] Compared to existing roller brush motors, this invention features a stator assembly mounted on a fixed shaft. The first and second rotary connecting elements at both ends of the fixed shaft are connected to the end cover and output connection portion, respectively, providing a robust support structure for the entire motor. This ensures stable relative positions between components during operation, reducing wear and malfunction risks caused by vibration and shaking. The rotor assembly and stator assembly are positioned opposite each other within the housing; this rational layout further enhances structural balance, ensuring stable power output from the motor and smooth rotation of the roller brush during cleaning. The output shaft, located at the output connection portion, efficiently transmits the motor's power to the roller brush. This direct connection reduces energy loss during power transmission, improves the motor's energy utilization efficiency, and allows the roller brush to perform cleaning at sufficient speed and torque, enhancing cleaning effectiveness and efficiency. The outer casing has a control connection section and an output connection section at each end. An end cover is installed on the control connection section, and the end cover is connected to the fixed shaft, outer casing, and other components via a rotating connecting element and a sealing structure. This effectively prevents dust, moisture, and other impurities from entering the motor, protecting key components such as the stator and rotor assemblies, extending the motor's service life, and reducing maintenance costs. Through its rational structural design, this invention improves the motor's stability, power transmission efficiency, protective performance, and ease of installation and maintenance, providing a strong guarantee for the efficient operation of cleaning equipment. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the output connection mechanism of the roller brush motor of this utility model;

[0018] Figure 2 for Figure 1 Front view schematic diagram of the output connection mechanism of the middle roller brush motor;

[0019] Figure 3 for Figure 2 Sectional view of AA;

[0020] Figure 4 for Figure 1 Exploded view of the output connection mechanism of the medium roller brush motor;

[0021] Figure 5 for Figure 1 An exploded view of the output connection mechanism of the middle roller brush motor from another perspective;

[0022] Figure 6 for Figure 1 A partial structural diagram of the output connection mechanism of the medium roller brush motor.

[0023] Explanation of reference numerals in the attached drawings: Fixed shaft 1, First rotary connecting element 11, Second rotary connecting element 12, Fixed connecting end 13, Stator assembly 2, Stator bracket 21, Stator arm 211, Stator winding 22, End cover 3, Fixed inner ring 31, Fixed step 311, Fixed outer ring 32, Sealing outer groove 321, Sealing outer ring 322, Housing 4, Control connecting part 41, Output connecting part 42, Placement groove 421, Positioning groove 422, Rotor assembly 5, Rotor bracket 51, Fixed slot 511, Rotor magnet 52, Output shaft 6, Positioning boss 61, Output connecting plate 62, Output sealing groove 621, Output sealing ring 622, Output connecting shaft 63, Output positioning shaft 64. Detailed Implementation

[0024] 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.

[0025] 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.

[0026] 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 1-6As shown, in one embodiment of this utility model, an output connection mechanism for a roller brush motor is disclosed, including a fixed shaft 1, a stator assembly 2, an end cover 3, a housing 4, a rotor assembly 5, and an output shaft 6. The stator assembly 2 is mounted on the fixed shaft 1. The housing 4 has a control connection portion 41 and an output connection portion 42 at its two ends, respectively. The end cover 3 is mounted on the control connection portion 41. The fixed shaft 1 has a first rotary connecting element 11 and a second rotary connecting element 12 at its two ends, respectively. The first rotary connecting element 11 is mounted on the end cover 3, and the second rotary connecting element 12 is mounted on the output connection portion 42. The rotor assembly 5 is mounted on the housing 4 and faces the stator assembly 2. The output shaft 6 is mounted on the output connection portion 42. In this embodiment, by mounting the stator assembly 2 on the fixed shaft 1, and connecting the first rotary connecting element 11 and the second rotary connecting element 12 at both ends of the fixed shaft 1 to the end cover 3 and the output connection portion 42, a stable support structure is provided for the entire motor. This ensures that the relative positions of the components remain stable during motor operation, reducing wear and malfunction risks caused by vibration and shaking. The rotor assembly 5 and stator assembly 2 are positioned opposite each other within the housing 4. This rational layout further enhances the structural balance, ensuring stable power output from the motor and smooth rotation of the roller brush during cleaning operations. The output shaft 6, located at the output connection 42, efficiently transmits the motor's power to the roller brush. This direct connection reduces energy loss during power transmission, improves the motor's energy utilization efficiency, and allows the roller brush to perform cleaning work at sufficient speed and torque, enhancing cleaning effectiveness and efficiency. The housing 4 has a control connection 41 and an output connection 42 at its two ends. An end cover 3 is installed on the control connection 41 and is connected to the fixed shaft 1, housing 4, and other components via a rotating connecting element and a sealing structure. This effectively prevents dust, moisture, and other impurities from entering the motor, protecting key components such as the stator assembly 2 and rotor assembly 5, extending the motor's lifespan, and reducing maintenance costs. This embodiment, through its rational structural design, improves the motor's stability, power transmission efficiency, protective performance, and ease of installation and maintenance, providing a strong guarantee for the efficient operation of the cleaning equipment.

[0027] One end of the fixed shaft 1 is provided with a fixed connecting end 13, which is connected to the second rotary connecting element 12 by screws. One side of the output connecting part 42 protrudes outward to form a mounting groove 421 on the inner side, and the second rotary connecting element 12 is disposed in the mounting groove 421. In this embodiment, the fixed connecting end 13 at one end of the fixed shaft 1 is connected to the second rotary connecting element 12 by screws, which can effectively transmit torque. When the motor is running, it can be ensured that there is no relative rotation or displacement between the fixed shaft 1 and the second rotary connecting element 12, ensuring the accuracy and stability of power transmission, reducing vibration and noise caused by loose connection, and extending the service life of related components. The output connecting part 42 protrudes outward to form a mounting groove 421 on the inner side, and the second rotary connecting element 12 is disposed in the mounting groove 421. This makes the structure of the entire mechanism more compact and makes full use of the internal space of the output connecting part 42.

[0028] The stator assembly 2 includes a stator support 21 and a stator winding 22. The stator support 21 is mounted on a fixed shaft 1 and has multiple stator winding arms 211. The stator winding 22 is wound around the stator winding arms 211. In this embodiment, the stator support 21, mounted on the fixed shaft, provides a stable support structure for the entire stator assembly. This ensures that the stator assembly maintains an accurate position during motor operation, preventing displacement or swaying caused by vibration or external forces. The stable support ensures a uniform air gap between the stator and rotor, which is beneficial for the stable distribution of the motor's magnetic field and improves the motor's operating efficiency and performance. The multiple stator winding arms 211 on the stator support 21 provide convenient and regular space for the winding of the stator winding 22. The winding of the stator winding 22 around the stator winding arms 211 makes the winding arrangement more neat and orderly, which helps to improve the winding's turn density and electromagnetic conversion efficiency. When the motor is working, the neatly wound coils can generate a magnetic field more effectively, which interacts with the rotor magnetic field to produce a larger electromagnetic torque, providing a stronger power output to the roller brush.

[0029] The end cap 3 is provided with a fixed inner ring 31 and a fixed outer ring 32. The first rotary connecting element 11 is disposed on the fixed inner ring 31, and the fixed outer ring 32 is used to connect one end of the outer casing 4. Specifically, the fixed inner ring 31 is provided with a fixed step 311, which is used for the fixed installation of the first rotary connecting element 11; the fixed outer ring 32 is provided with a sealing outer groove 321, which is provided with a sealing outer ring 322, which is used for sealing between the fixed outer ring 32 and the outer casing 4. In this embodiment, the fixed step 311 is provided by the fixed inner ring 31 of the end cap 3 for the fixed installation of the first rotary connecting element 11. This ensures that the installation position of the first rotary connecting element 11 is accurate and firm, avoiding loosening or displacement of the component during motor operation. The sealing outer groove 321 of the fixed outer ring 32 is provided with a sealing outer ring 322, which achieves an effective seal between the fixed outer ring 32 and the outer casing 4. The sealing outer ring 322 can prevent external dust, moisture, oil and other impurities from entering the motor and protect key components such as stator assembly 2 and rotor assembly 5 from corrosion.

[0030] The rotor assembly 5 includes a rotor bracket 51 and rotor magnets 52. The rotor bracket 51 is used to fix the rotor magnets 52 to the inner wall of the housing 4. The rotor bracket 51 is provided with a fixing slot 511, and one end of the rotor magnets 52 is inserted into the fixing slot 511. In this embodiment, the rotor bracket 51 stably fixes the rotor magnets 52 to the inner wall of the housing 4, preventing the rotor magnets 52 from shifting or loosening when the motor is running at high speed. The fixing slot 511 on the rotor bracket 51, into which one end of the rotor magnets 52 is inserted, further enhances the fixing effect. This ensures the precise relative position between the rotor magnets 52 and the stator assembly 2, enabling the motor to operate normally according to design requirements and reducing operational instability and efficiency reduction caused by changes in the position of the magnets.

[0031] The output connection part 42 is provided with a positioning groove 422, and the output shaft 6 is provided with a positioning boss 61, which is used to engage with the positioning groove 422. In this embodiment, the engagement of the positioning groove 422 and the positioning boss 61 provides a precise positioning reference for the installation of the output shaft 6. During the assembly process, the operator only needs to align the positioning boss 61 with the positioning groove 422 to quickly and accurately install the output shaft 6 into the designated position, avoiding deviations and errors during the installation process and improving installation efficiency and quality. The tight engagement of the positioning groove 422 and the positioning boss 61 can effectively resist these external forces and prevent radial and axial displacement of the output shaft 6. This ensures that the motor power can be smoothly transmitted from the rotor assembly 5 to the output shaft 6, and then to the roller brush, reducing vibration and noise generation and extending the service life of the motor and the roller brush.

[0032] The output shaft 6 is equipped with an output connecting plate 62, an output connecting shaft 63, and an output positioning shaft 64. The output connecting plate 62 is fixed to the output connecting part 42 with screws. The output connecting shaft 63 is mounted on the output connecting plate 62, and the output positioning shaft 64 is mounted on the output connecting shaft 63. Specifically, the output connecting plate 62 has an output sealing groove 621 on the side facing the output connecting part 42, and an output sealing ring 622 is provided on the output sealing groove 621. The output sealing ring 622 is used to seal between the output connecting part 42 and the output connecting plate 62. Multiple output positioning shafts 64 are provided, and the multiple output positioning shafts 64 are evenly distributed in a ring around the output connecting shaft 63. In this embodiment, the output connecting plate 62 is fixed to the output connecting part 42 with screws, ensuring a stable connection between the output shaft 6 and the output connecting part 42. During motor operation, torque can be effectively transmitted, preventing the output shaft 6 from loosening or shifting, ensuring the accuracy and reliability of power transmission, reducing vibration and noise caused by unstable connection, and improving the operational stability and service life of the entire mechanism. The output connecting plate 62 has an output sealing groove 621 on the side facing the output connecting part 42, and an output sealing ring 622 is installed thereon. This effectively prevents external dust, moisture, and other impurities from entering the connection between the output connecting part 42 and the output connecting plate 62. This protects the internal mechanical structure, reduces wear and corrosion, and avoids electrical faults caused by impurities. Multiple output positioning shafts 64 are evenly distributed in a ring around the output connecting shaft 63, providing precise positioning and support for the installation and operation of the output shaft 6. This makes the output shaft 6 more stable during rotation, effectively reducing eccentricity and wobbling, ensuring good cooperation between the output shaft 6 and other components, and improving the efficiency and accuracy of power transmission.

[0033] 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 roll brush motor output connection mechanism characterized by: The device includes a fixed shaft, a stator assembly, an end cover, a housing, a rotor assembly, and an output shaft. The stator assembly is mounted on the fixed shaft. The housing has a control connection portion and an output connection portion at both ends. The end cover is mounted on the control connection portion. The fixed shaft has a first rotary connecting element and a second rotary connecting element at both ends. The first rotary connecting element is mounted on the end cover, and the second rotary connecting element is mounted on the output connection portion. The rotor assembly is mounted on the housing and is opposite to the stator assembly. The output shaft is mounted on the output connection portion.

2. The rolling brush motor output connection mechanism of claim 1, wherein: One end of the fixed shaft is provided with a fixed connection end, which is connected to the second rotary connection element by a screw; one side of the output connection part protrudes outward to form a mounting groove on the inner side, and the second rotary connection element is disposed in the mounting groove.

3. The rolling brush motor output coupling mechanism of claim 1, wherein: The stator assembly includes a stator support and a stator winding. The stator support is mounted on a fixed shaft and has multiple stator winding arms. The stator windings are wound around the stator winding arms.

4. The rolling brush motor output coupling mechanism of claim 1, wherein: The end cap is provided with a fixed inner ring and a fixed outer ring, the first rotating connecting element is provided on the fixed inner ring, and the fixed outer ring is used to connect one end of the outer shell.

5. The rolling brush motor output coupling mechanism of claim 4, wherein: The fixed inner ring is provided with a fixed step, which is used for the fixed installation of 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 for sealing between the fixed outer ring and the outer shell.

6. The rolling brush motor output coupling mechanism of claim 1, wherein: The rotor assembly includes a rotor support and a rotor magnet. The rotor support is used to fix the rotor magnet to the inner wall of the housing. The rotor support is provided with a fixing slot, and one end of the rotor magnet is inserted into the fixing slot.

7. The rolling brush motor output coupling mechanism of claim 1, wherein: The output connection part is provided with a positioning groove, and the output shaft is provided with a positioning boss, which is used to fit into the positioning groove.

8. The rolling brush motor output coupling mechanism of claim 1, wherein: 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 part 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.

9. The rolling brush motor output coupling mechanism of claim 8, wherein: The output connection plate has an output sealing groove on the side facing the output connection part, 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 part and the output connection plate.

10. The rolling brush motor output coupling mechanism of claim 8, wherein: 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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