Roller brush motor control connection mechanism

Abstract

This utility model relates to the field of motor power technology, specifically a control connection mechanism for a roller brush motor. It includes a fixed shaft, a fixed bracket, a control board, a connector, a housing, and an end cover. A stator winding is disposed on the outside of the fixed shaft. The fixed bracket is mounted on the stator winding. The control board is mounted on the fixed bracket. The end cover has a rotating connecting element and is connected to the fixed shaft via the rotating connecting element. One end of the housing is connected to the end cover and forms a cavity with the fixed shaft. The fixed shaft has a mating groove. The connector is mounted on the control board, located in the mating groove, and extends one end to the rotating connecting element. This utility model reduces component displacement or loosening caused by vibration, impact, etc., improving the overall reliability and durability of the motor.

Description

Technical Field

[0001] This utility model relates to the field of motor power technology, and in particular to a control 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 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. In terms of control connections, design flaws can easily lead to insufficient stability of the internal control board, especially during operation, affecting the stability of the roller brush motor. Utility Model Content

[0004] To solve the above problems, this utility model features a fixed bracket mounted on the stator winding, with the control board fixed to the fixed bracket, forming a stable mechanical structure. This ensures the relative positional stability of each component during motor operation, reduces component displacement or loosening caused by vibration, impact, and other factors, and improves the overall reliability and durability of the brush motor control connection mechanism.

[0005] The technical solution adopted by this utility model is: a control connection mechanism for a roller brush motor, including a fixed shaft, a fixed bracket, a control board, a connector, a housing, and an end cover. A stator winding is provided on the outside of the fixed shaft. The fixed bracket is provided on the stator winding. The control board is provided on the fixed bracket. The end cover is provided with a rotary connecting element. The end cover is connected to the fixed shaft through the rotary connecting element. One end of the housing is connected to the end cover and forms a cavity with the fixed shaft. The fixed shaft is provided with a mating groove. The connector is provided on the control board. The connector is provided on the mating groove and one end extends to the rotary connecting element.

[0006] A further improvement to the above solution is that the fixed shaft is provided with a rotating connecting part, the inner diameter of the rotating connecting element is connected to the rotating connecting part, the rotating connecting part is provided with a sealing inner groove near the rotating connecting element, and a sealing inner ring is provided on the sealing inner groove. The sealing inner ring is used to seal between the inner diameter of the rotating connecting element and the rotating connecting part.

[0007] A further improvement to the above scheme is that a fixing groove is provided on the outer side of the fixing shaft, a fixing retaining ring is provided on the fixing groove, a sealing step is formed between the fixing retaining ring and the sealing inner ring, a sealing element is provided on the sealing step, and the outer diameter of the sealing element extends toward the end cover.

[0008] A further improvement to the above solution is that the outer diameter of the sealing element is provided with a sealing abutment portion, which extends obliquely toward the end cover for sealing between the end cover and the sealing element.

[0009] A further improvement to the above solution is that the fixed bracket is provided with a support platform, the support platform is provided with a connecting column, the control plate is provided with an assembly hole, the support platform is used to support the control console, and the assembly hole is used to mate with the connecting column and is fixed by screws.

[0010] A further improvement to the above solution is that the inner diameter of the control board is provided with a through groove, the through groove is provided with a positioning platform, the through groove is used to be sleeved on the fixed shaft, and one end of the positioning platform extends toward the mating groove for the control board to be installed and positioned.

[0011] A further improvement to the above solution is that the connector is used to connect the wire end connecting element, the port of the wire end connecting element that mates with the connector is located at the inner diameter of the rotating connecting element, and the sealing inner ring is used to seal between the wire end connecting element and the rotating connecting element.

[0012] 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 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.

[0013] 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 rotating 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.

[0014] A further improvement to the above scheme is that multiple sun ribs are provided between the fixed inner ring and the fixed outer ring, and the sun ribs are used to connect the fixed inner ring and the fixed outer ring.

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

[0016] Compared to existing roller brush motors, this invention offers superior mechanical stability. A stator winding is mounted on a fixed shaft, a fixed bracket is installed on the stator winding, and the control board is fixed to the fixed bracket, forming a robust mechanical structure. This ensures the relative positional stability of each component during motor operation, reducing component displacement or loosening caused by vibration, impact, and other factors, thus improving the overall reliability and durability of the motor. The end cap is connected to the fixed shaft via a rotary connecting element, and the connection between the outer casing and the end cap further strengthens the overall structural integrity, enabling the motor to maintain stable operation even in complex working environments. Regarding electrical connections and control, the control board is mounted on the fixed bracket for precise motor control. A connector is located on the control board and mates with the mating groove of the fixed shaft, with one end extending to the rotary connecting element, achieving an efficient and stable electrical connection between the control board and rotating components. This allows for accurate transmission of control signals and power, ensuring that parameters such as motor speed and direction can be precisely adjusted according to the actual needs of the cleaning equipment, improving the cleaning efficiency and effectiveness. The cavity formed by the connection between the outer shell and the end cap provides a relatively enclosed space for the internal components, effectively preventing the intrusion of external dust, moisture, and other impurities, thus protecting the electrical and mechanical components inside the motor. This invention improves the performance and reliability of the roller brush motor by optimizing the mechanical structure and electrical connections, 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 roller brush motor control connection mechanism of this utility model;

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

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

[0020] Figure 4 for Figure 3 Enlarged diagram of point A in the diagram.

[0021] Figure 5 for Figure 1 Schematic diagram of the internal structure of the control connection mechanism for the medium roller brush motor;

[0022] Figure 6 for Figure 1 Exploded view of the control connection mechanism of the middle roller brush motor.

[0023] Explanation of reference numerals in the attached drawings: Fixed shaft 1, mating groove 11, rotating connection part 12, sealing inner groove 121, sealing inner ring 122, fixing groove 13, fixing retaining ring 131, sealing element 14, sealing abutment part 141, fixed bracket 2, support platform 21, connecting column 22, control plate 3, assembly hole 31, through groove 32, positioning platform 33, connector 4, wire end connection element 41, outer shell 5, end cap 6, fixing inner ring 61, fixing step 611, fixing outer ring 62, sealing outer groove 621, sealing outer ring 622, sun rib 63, stator winding 7, rotating connection element 8. 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, a control connection mechanism for a roller brush motor is provided, including a fixed shaft 1, a fixed bracket 2, a control board 3, a connector 4, a housing 5, and an end cap 6. A stator winding 7 is disposed on the outside of the fixed shaft 1. The fixed bracket 2 is mounted on the stator winding 7. The control board 3 is mounted on the fixed bracket 2. The end cap 6 is provided with a rotating connecting element 8, and the end cap 6 is connected to the fixed shaft 1 via the rotating connecting element 8. One end of the housing 5 is connected to the end cap 6 and forms a cavity with the fixed shaft 1. The fixed shaft 1 is provided with a mating groove 11. The connector 4 is mounted on the control board 3, and one end of the connector 4 extends to the rotating connecting element 8. In terms of mechanical structural stability, this embodiment provides a stable mechanical structure by mounting the stator winding 7 on the fixed shaft 1, installing the fixed bracket 2 on the stator winding 7, and fixing the control board 3 to the fixed bracket 2. This design ensures the relative stability of each component during motor operation, reducing component displacement or loosening caused by vibration, impact, and other factors, thus improving the overall reliability and durability of the motor. The end cap 6 is connected to the fixed shaft 1 via a rotating connecting element 8, and the connection between the outer casing 5 and the end cap 6 further strengthens the overall structural integrity, enabling the motor to maintain stable operation even in complex working environments. In terms of electrical connection and control, the control board 3 is mounted on the fixed bracket 2 for precise motor control. The connector 4 is mounted on the control board 3 and mates with the mating groove 11 of the fixed shaft 1, with one end extending to the rotating connecting element 8, achieving an efficient and stable electrical connection between the control board 3 and the rotating components. This allows for accurate transmission of control signals and power, ensuring that parameters such as motor speed and direction can be precisely adjusted according to the actual needs of the cleaning equipment, improving the cleaning efficiency and effectiveness. The cavity formed by the connection between the outer casing 5 and the end cap 6 provides a relatively enclosed space for the internal components, effectively preventing the intrusion of external dust, moisture, and other impurities, protecting the electrical and mechanical components inside the motor. This embodiment improves the performance and reliability of the roller brush motor by optimizing the mechanical structure, electrical connections, and heat dissipation design, providing a strong guarantee for the efficient operation of the cleaning equipment.

[0027] The fixed shaft 1 is provided with a rotating connecting part 12. The inner diameter of the rotating connecting element 8 is connected to the rotating connecting part 12. A sealing inner groove 121 is provided near the rotating connecting element 8 on the rotating connecting part 12. A sealing inner ring 122 is provided on the sealing inner groove 121. The sealing inner ring 122 is used to seal the space between the inner diameter of the rotating connecting element 8 and the rotating connecting part 12. In this embodiment, the connection between the inner diameter of the rotating connecting element 8 and the rotating connecting part 12 ensures a precise fit between them. This guarantees that the rotating connecting element 8 can rotate stably around the fixed shaft 1, making the rotation of the roller brush motor smoother. During the operation of the roller brush motor, stable rotation helps improve the cleaning efficiency and quality of the cleaning equipment and reduces uneven cleaning caused by unstable rotation. The sealing inner ring 122, installed on the sealing inner groove 121, effectively fills the tiny gap between the inner diameter of the rotating connecting element 8 and the rotating connecting part 12. This prevents external dust, moisture, and other impurities from entering the motor. In the usage scenarios of cleaning equipment, impurities may damage the internal structure of the motor, such as wearing bearings or affecting electrical connections. Good sealing can prevent such situations from occurring, protect critical components inside the motor, reduce the probability of failure, extend the service life of the roller brush motor, reduce maintenance costs, and improve the reliability and stability of the equipment.

[0028] A fixing groove 13 is provided on the outer side of the fixed shaft 1. A fixing ring 131 is provided on the fixing groove 13. A sealing step is formed between the fixing ring 131 and the sealing inner ring 122. A sealing element 14 is provided on the sealing step, and the outer diameter of the sealing element 14 extends toward the end cover 6. In this embodiment, a stable structural foundation is formed by the cooperation between the fixing groove 13 on the outer side of the fixed shaft 1 and the fixing ring 131. The fixing ring 131 is embedded in the fixing groove 13, which restricts its axial and radial movement on the fixed shaft 1, providing a reliable support point for the installation of subsequent components. This makes the relative positions of the components in the entire connection mechanism more stable during motor operation, reducing the loosening or displacement of components caused by vibration and other factors, and ensuring the normal operation of the motor. The sealing step formed by the fixing ring 131 and the sealing inner ring 122 provides a precise installation position for the sealing element 14, ensuring that the sealing element 14 can be accurately positioned. The outer diameter of the sealing element 14 extends toward the end cover 6, further enhancing the sealing effect. It effectively prevents external dust, moisture and other impurities from entering the motor through the gap between the end cover 6 and the fixed shaft 1, preventing these impurities from corroding and damaging the motor's windings, bearings and other key components.

[0029] The outer diameter of the sealing element 14 is provided with a sealing abutment portion 141, which extends obliquely toward the end cover 6 for sealing between the end cover 6 and the sealing element 14. In this embodiment, the oblique sealing abutment portion 141 can better fit the end cover 6, forming a tight sealing interface. During the operation of the roller brush motor, vibration and pressure changes are inevitable. The oblique design allows the sealing abutment portion 141 to adaptively adjust the degree of fit when subjected to external forces, ensuring that the end cover 6 and the sealing element 14 always maintain a good sealing state. This effectively prevents the intrusion of external dust, moisture, oil, and other impurities, protecting key components inside the motor such as the stator winding 7 and the control board 3 from damage.

[0030] The fixed bracket 2 is equipped with a support platform 21, on which a connecting column 22 is provided. The control plate 3 is provided with an assembly hole 31. The support platform 21 is used for console support, and the assembly hole 31 is used to mate with the connecting column 22 and is fixed with screws. In this embodiment, the support platform 21 on the fixed bracket 2 provides a stable support foundation for the control plate 3. The design of the support platform 21 increases the contact area between the control plate 3 and the fixed bracket 2, which can better distribute the weight and external force borne by the control plate 3 and avoid deformation or damage to the control plate 3 due to excessive local stress. The cooperation between the connecting column 22 and the assembly hole 31 further ensures the accurate installation position of the control plate 3 on the fixed bracket 2 and prevents the control plate 3 from shifting or shaking during motor operation. Fixing with screws firmly connects the control plate 3 and the fixed bracket 2 together, enhancing the rigidity and stability of the entire structure and making the motor more reliable during operation.

[0031] The control plate 3 has a through groove 32 on its inner diameter, and a positioning platform 33 is provided in the through groove 32. The through groove 32 is used to fit onto the fixed shaft 1, and one end of the positioning platform 33 extends toward the mating groove 11 for positioning the control plate 3 during installation. In this embodiment, by providing a through groove 32 on the inner diameter of the control plate 3, the control plate 3 can be easily fitted onto the fixed shaft 1, simplifying the installation process, reducing installation difficulty, and improving assembly efficiency. When installing the control plate 3, the worker only needs to align the through groove 32 with the fixed shaft 1 to quickly complete the initial positioning, saving installation time and labor costs. The positioning platform 33, with one end extending toward the mating groove 11, provides a precise positioning reference for the installation of the control plate 3. During the fitting process, the positioning platform 33 and the mating groove 11 cooperate with each other to ensure that the control plate 3 is accurately installed in the predetermined position. This ensures the relative positional accuracy between the control plate 3 and other components, making the electrical and mechanical connections between the components more accurate.

[0032] Connector 4 is used to connect the wire end connecting element 41. The port of the wire end connecting element 41 that mates with connector 4 is located within the inner diameter of the rotating connecting element 8. The sealing inner ring 122 is used to seal between the wire end connecting element 41 and the rotating connecting element 8. In this embodiment, the connection of wire end connecting element 41 via connector 4 ensures stable transmission of motor control signals and power. This guarantees a reliable electrical path between the wire end connecting element 41 and other components, enabling accurate transmission of motor control commands and stable motor operation according to a predetermined program. Simultaneously, the location of the port of the wire end connecting element 41 that mates with connector 4 within the inner diameter of the rotating connecting element 8 results in a more compact connection, reduces space occupation, and optimizes the internal structural design of the motor. The sealing inner ring 122 achieves a seal between the wire end connecting element 41 and the rotating connecting element 8, effectively preventing external dust, moisture, oil, and other impurities from entering the connection area.

[0033] The end cap 6 is provided with a fixed inner ring 61 and a fixed outer ring 62. The rotary connecting element 8 is disposed on the fixed inner ring 61, and the fixed outer ring 62 is used to connect one end of the outer casing 5. Specifically, the fixed inner ring 61 is provided with a fixed step 611, which is used for the fixed installation of the rotary connecting element 8; the fixed outer ring 62 is provided with a sealing outer groove 621, which is provided with a sealing outer ring 622, which is used to seal between the fixed outer ring 62 and the outer casing 5. Multiple sun ribs 63 are provided between the fixed inner ring 61 and the fixed outer ring 62, which are used to connect the fixed inner ring 61 and the fixed outer ring 62. In this embodiment, the fixed step 611 provided by the fixed inner ring 61 provides a precise and stable installation position for the rotary connecting element 8. The rotary connecting element 8 is installed on the fixed step 611, which can effectively avoid shaking and displacement during operation, ensure the smooth rotation of the motor during operation, reduce noise and wear caused by vibration, and extend the service life of the motor. The fixed outer ring 62 is filled in the sealing outer groove 621 through the sealing outer ring 622, achieving a good seal between the fixed outer ring 62 and the outer casing 5. This prevents external dust, moisture, oil, and other impurities from entering the motor, protecting key components such as the stator winding 7 and control board 3 from damage, and improving the motor's protection level and reliability. Multiple sun ribs 63 connect the fixed inner ring 61 and the fixed outer ring 62, enhancing the overall structural strength of the end cover 6.

[0034] 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 control connection mechanism characterized by: The device includes a fixed shaft, a fixed bracket, a control board, a connector, a housing, and an end cap. A stator winding is disposed on the outside of the fixed shaft. The fixed bracket is disposed on the stator winding. The control board is disposed on the fixed bracket. The end cap is provided with a rotary connecting element and is connected to the fixed shaft through the rotary connecting element. One end of the housing is connected to the end cap and forms a cavity with the fixed shaft. The fixed shaft is provided with a mating groove. The connector is disposed on the control board and is disposed on the mating groove, with one end extending to the rotary connecting element.

2. The roll brush motor control connection mechanism of claim 1, wherein: The fixed shaft is provided with a rotating connecting part, the inner diameter of the rotating connecting element is connected to the rotating connecting part, the rotating connecting part is provided with a sealing inner groove near the rotating connecting element, and a sealing inner ring is provided on the sealing inner groove. The sealing inner ring is used to seal between the inner diameter of the rotating connecting element and the rotating connecting part.

3. The roll brush motor control connection mechanism of claim 2, wherein: A fixing groove is provided on the outer side of the fixing shaft, a fixing retaining ring is provided on the fixing groove, a sealing step is formed between the fixing retaining ring and the sealing inner ring, a sealing element is provided on the sealing step, and the outer diameter of the sealing element extends toward the end cover.

4. The roll brush motor control connection mechanism of claim 3, wherein: The outer diameter of the sealing element is provided with a sealing abutment portion, which extends obliquely toward the end cap for sealing between the end cap and the sealing element.

5. The roll brush motor control connection mechanism of claim 1, wherein: The fixed bracket is provided with a support platform, the support platform is provided with a connecting column, the control plate is provided with an assembly hole, the support platform is used to support the control console, the assembly hole is used to mate with the connecting column and is fixed by screws.

6. The roll brush motor control connection mechanism of claim 1, wherein: The control board has a through groove in its inner diameter, and a positioning platform is provided in the through groove. The through groove is used to fit onto the fixed shaft, and one end of the positioning platform extends toward the mating groove for the control board to be installed and positioned.

7. The roll brush motor control connection mechanism of claim 2, wherein: The connector is used to connect the wire end connecting element. The port of the wire end connecting element that mates with the connector is located at the inner diameter of the rotating connecting element. The sealing inner ring is used to seal between the wire end connecting element and the rotating connecting element.

8. The roll brush motor control connection mechanism of claim 1, wherein: The end cap is provided with a fixed inner ring and a fixed outer ring, the 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.

9. The roll brush motor control connection mechanism of claim 8, wherein: The fixed inner ring is provided with a fixed step, which is used for the fixed installation of the rotating 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.

10. The roll brush motor control connection mechanism of claim 8, wherein: Multiple sun ribs are provided between the fixed inner ring and the fixed outer ring, and the sun ribs are used to connect the fixed inner ring and the fixed outer ring.

Images