Contact type angle detection device and electric flip driver

Abstract

The utility model discloses a contact type angle detection device which is characterized in that the contact type angle detection device comprises a rotating signal panel which is installed on an output shaft and synchronously rotates along with the output shaft, an electric brush is installed on the end face of the rotating signal panel, a PCB connected with a motor controller is arranged on the side of the electric brush, and a carbon film resistor matched with the electric brush is arranged on the PCB; and the PCB is provided with a central hole, the output shaft is sleeved with the PCB, the PCB is fixed on the inner side of the end cover, and the PCB is electrically connected with the motor control mainboard. According to the device, traditional angle detection gears and other assemblies can be omitted, the occupied space is effectively reduced, meanwhile, the accuracy and reliability of angle detection are guaranteed, and the overall performance and market competitiveness of products are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric flip cover driver detection, in particular to a contact type angle detection device and an electric flip cover driver. Background Art

[0002] With the continuous development of the economy and the significant improvement of people's living standards, people's demand for bathroom appliances and household appliances is growing, and the requirements for the intelligence and automation of products are getting higher and higher. Driven by this market demand, smart household appliances such as smart toilets, smart dishwashers, smart sinks, and smart washing machines have emerged and gradually become the mainstream of the market. Among them, the automatic flip function, as an important embodiment of intelligence and automation, has been favored by consumers.

[0003] There are many electric flip cover drivers with driving cover plates on the market, and their core components include a housing, a motor that provides power, a reduction assembly connected to the motor, and an output shaft. These electric flip cover drivers control the movement of the reduction assembly with the motor through a PCB board to achieve automatic flipping of the cover plate, such as the seat cover and seat ring of a smart toilet.

[0004] However, in actual operation, the rotation angle of the seat cover and the seat ring needs to be accurately detected and fed back in order to effectively control the running state of the motor. At present, the market mainly uses potentiometers for angle detection. Although this method has certain advantages, such as high detection accuracy and fast response speed, it has many parts, cumbersome installation process, and occupies a large space, which is not conducive to the compact design and cost control of the product.

[0005] Therefore, in view of the shortcomings of the prior art, the utility model provides a contact angle detection device using a carbon film resistor and a brush. The device can eliminate the need for traditional angle detection gears and other components, effectively reduce space occupation, while ensuring the accuracy and reliability of angle detection, and improving the overall performance and market competitiveness of the product. Utility Model Content

[0006] In view of the problems existing in the prior art, the utility model provides a contact angle detection device and an electric flip cover driver.

[0007] The utility model is implemented as follows: a contact angle detection device, characterized in that: it includes a rotating signal disk installed on an output shaft and rotating synchronously with the output shaft, a brush is installed on the end surface of the rotating signal disk, a PCB circuit board connected to a motor controller is provided on the brush side, and a carbon film resistor matched with the brush is provided on the PCB circuit board; a center hole is provided on the PCB circuit board, the PCB circuit board is sleeved on the output shaft and fixed on the inner side of the end cover, and the PCB circuit board is electrically connected to the motor control mainboard.

[0008] Preferably, the brush includes two symmetrically arranged connecting parts. One side of the connecting part is provided with a first brush part, and the other side of the connecting part is provided with a second brush part. Three brush bars are provided on each of the first brush part and the second brush part. An arch height part is provided in the middle of each brush bar, and an arc-shaped electric brush head is provided at the top of the arch height part.

[0009] Preferably, a contact point is provided at the highest point of the arc-shaped electric brush head.

[0010] Preferably, a connection hole is provided on the connecting part.

[0011] The present utility model also relates to an electric flip cover driver, which includes a housing, a driving motor, a reduction device, and an output shaft, and further includes an angle detection device for detecting the rotation angle of the output shaft. It is characterized in that the angle detection device adopts the above-mentioned contact type angle detection device.

[0012] More preferably, the rotation signal disk is installed on the end face of the last-stage output gear of the reduction device, and the last-stage output gear is installed for power output.

[0013] More preferably, the rotation signal disk is the last-stage output gear of the reduction device, and the brush is installed on the end face of the last-stage output gear.

[0014] Advantages and technical effects of the present utility model: The contact type angle detection device shows excellent technical effects in the electric flip cover driver. This device uses the resistive angle detection principle, and accurately detects the rotation angle of the output shaft by the contact change between the brush and the carbon film resistor, ensuring the accuracy of the opening and closing positions of the flip cover, greatly improving the operation accuracy and reliability of the device. At the same time, its structure is simple and compact, which is not only easy to install and maintain, but also effectively reduces the manufacturing cost and use cost of the electric flip cover driver. Adopting the contact type detection method enables this device to maintain high sensitivity and stability in various working environments, further improving the overall performance and service life of the electric flip cover driver. In summary, the application of the contact type angle detection device makes the electric flip cover driver show significant advantages in terms of accuracy, reliability, cost-effectiveness, and environmental adaptability, providing users with a more intelligent, efficient, and reliable use experience of bathroom appliances. Description of the Drawings

[0015] Figure 1 is a schematic diagram of the internal structure of the electric flip cover driver of the present utility model;

[0016] Figure 2 is a schematic diagram of the structure with the end cover removed on the side of the output shaft;

[0017] Figure 3 is a schematic diagram of the structure of the PCB circuit board;

[0018] Figure 4 It is a schematic diagram of the brush structure.

[0019] In the figure, 1. Output shaft; 2. Rotating signal disk; 3. Brush; 3-1. Connecting part; 3-10. Connecting hole; 3-2. First brush part; 3-3. Second brush part; 3-4. Arch height part; 3-5. Arc-shaped brush head; 3-6. Contact point; 4. PCB circuit board; 4-1. Carbon film resistor; 5. Housing; 5-1. End cover; 6. Motor; 7. Reduction gear. Detailed implementation manners

[0020] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below in conjunction with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0021] In the design of the electric flip drive, the addition of the angle detection device is of crucial significance. This device is ingeniously installed on the output shaft inside the front end cover, and its core task is to accurately detect the rotation angle of the transmission shaft. Through the electrical connection with the control main board, the angle detection device not only transmits the position information of the transmission shaft in real time, but also provides crucial feedback on the working state of the motor.

[0022] Its importance is first reflected in the control of the accuracy of the flip action. The flip action of the intelligent toilet needs to strictly follow the set angle to ensure that the expected effect can be achieved every time it is used. The angle detection device is the "guardian" of this process. It constantly monitors the rotation of the transmission shaft to ensure that the flip can accurately flip to the set angle.

[0023] In addition, the angle detection device also plays a key role in enhancing the user experience. By detecting and feeding back the position information of the transmission shaft in real time, this device enables the working state of the motor to be accurately regulated. This means that no matter when the user uses the intelligent toilet, the flip action can be kept smooth and stable, thus bringing a more comfortable and convenient user experience to the user.

[0024] From a more macroscopic perspective, the addition of the angle detection device also helps to improve the stability and reliability of the entire intelligent toilet system. By real-time monitoring and feedback on the working state of the motor, this device can timely detect and handle any potential abnormal situations, thereby effectively preventing various fault problems caused by inaccurate rotation angle of the transmission shaft.

[0025] Please refer to Figures 1 to 4, this application mainly relates to a contact angle detection device, including a rotating signal disk 2 installed on the output shaft 1 and rotating synchronously with the output shaft. A brush 3 is installed on the end face of the rotating signal disk. A PCB circuit board 4 connected to the motor controller is provided on the side of the brush. A carbon film resistor 4-1 cooperating with the brush is provided on the PCB circuit board; a central hole is provided on the PCB circuit board. The PCB circuit board is sleeved on the output shaft and fixed inside the end cover 5-1. The PCB circuit board is electrically connected to the motor control main board, and the motor drives the output shaft to rotate.

[0026] Preferably, the brush 3 includes two symmetrically arranged connecting parts 3-1. The brush is integrally stamped from conductive copper material. A first brush part 3-2 is provided on one side of the connecting part, and a second brush part 3-3 is provided on the other side of the connecting part. This symmetrically designed brush structure makes the contact of the brush on the rotating signal disk more stable, reducing vibrations and wear caused by imbalance or asymmetry, thereby improving the service life of the brush and the stability of signal transmission; three brush strips are provided on both the first brush part and the second brush part. An arch height part 3-4 is provided in the middle of each brush strip, and an arc-shaped electric brush head 3-5 is provided at the top of the arch height part. This design increases the contact area between the brush and the rotating signal disk and improves the electrical conductivity of the brush. At the same time, the design of the arch height part and the arc-shaped electric brush head helps to reduce the friction between the brush and the rotating signal disk, reduce wear, and further extend the service life of the brush.

[0027] Preferably, a contact point 3-6 is provided at the highest point of the arc-shaped electric brush head. The contact point is welded to the arc-shaped electric brush head using copper material. The material has good electrical conductivity and wear resistance. Welding it as a contact point on the arc-shaped electric brush head can further improve the electrical conductivity and wear resistance of the brush and ensure the stable transmission of signals.

[0028] Preferably, a connection hole 3-10 is provided on the connecting part for fixing to the rotating signal disk. This design enables the brush to be firmly fixed on the rotating signal disk, avoiding loosening or falling off of the brush during rotation, thereby ensuring stable contact between the brush and the rotating signal disk and accurate transmission of signals.

[0029] The above angle detection device uses contact angle detection, specifically resistive angle detection. Its core components include the final output large gear serving as a signal gear, and a brush is embedded on the end face of the gear. At the same time, a PCB circuit board is installed on the front end cover, and a carbon film resistor cooperating with the brush is provided on the PCB circuit board.

[0030] When the final - stage output large gear starts to rotate, the carbon brush will also rotate accordingly and make contact with the carbon - film resistor on the PCB circuit board. The carbon - film resistor is designed such that its resistance value varies with position. Therefore, when the carbon brush rotates and makes contact with the carbon - film resistor at different positions, a variable resistance value is formed. There is a one - to - one correspondence between this variable resistance value and the rotation angle of the final - stage output large gear.

[0031] To detect this change in resistance value, the device establishes an electrical connection with the motor control main board through the PCB circuit board. The change in resistance value is converted into an electrical signal and transmitted to the motor control main board. The main board then determines the rotation angle of the final - stage output large gear based on the received electrical signal and further controls the working state of the motor to ensure that the flip - cover can be precisely flipped at the set angle.

[0032] The utility model also relates to an electric flip - cover driver, which includes a housing 5, a drive motor 6, a reduction device 7, and an output shaft 1. It further includes an angle - detection device for detecting the rotation angle of the output shaft, and the angle - detection device adopts the above - mentioned contact - type angle - detection device.

[0033] Further preferably, the rotation signal disk is installed on the end face of the final - stage output gear of the reduction device, and the final - stage output gear is installed at the power output.

[0034] Further preferably, the rotation signal disk is the final - stage output gear of the reduction device, and the carbon brush is installed on the end face of the final - stage output gear.

[0035] The electric flip - cover driver adopting the above - mentioned contact - type angle - detection device shows significant technical effects. First of all, through its unique design, the contact - type angle - detection device can accurately detect the rotation angle of the output shaft, thereby ensuring that the electric flip - cover driver can accurately control the opening and closing positions of the flip - cover during operation, improving the operation accuracy and reliability of the device. The one - way rotation angle of the rotation shaft is generally 0 - 120 degrees, preferably 110 degrees. Secondly, the structure of the device is simple and compact, easy to install and maintain, effectively reducing the manufacturing cost and use cost of the electric flip - cover driver. In addition, due to the adoption of the contact - type detection method, the device has high sensitivity and stability, and can maintain accurate detection performance in various working environments, further enhancing the overall performance and service life of the electric flip - cover driver. In summary, the electric flip - cover driver adopting the above - mentioned contact - type angle - detection device shows significant advantages in terms of accuracy, reliability, cost - effectiveness, and environmental adaptability.

[0036] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A contact angle detection device, characterized in that: It includes a rotating signal disk installed on the output shaft and rotating synchronously with the output shaft. A brush is installed on the end face of the rotating signal disk, and a PCB circuit board connected to the motor controller is provided on the side of the brush. A carbon film resistor cooperating with the brush is provided on the PCB circuit board. The PCB circuit board is provided with a central hole, the PCB circuit board is sleeved on the output shaft and fixed inside the end cover, and the PCB circuit board is electrically connected to the motor control main board.

2. The contact angle detection device according to claim 1, wherein: The brush includes two symmetrically arranged connecting parts. A first brush part is provided on one side of the connecting part, and a second brush part is provided on the other side of the connecting part. Three brush strips are provided on each of the first brush part and the second brush part. An arch height part is provided in the middle of each brush strip, and an arc-shaped electric brush head is provided at the top of the arch height part.

3. The contact angle detection device according to claim 2, characterized in that: A contact point is provided at the highest point of the arc-shaped electric brush head.

4. The contact angle detection device according to claim 2, characterized in that: A connection hole is provided on the connecting part.

5. An electric flip drive, comprising a housing, a drive motor, a reduction device and an output shaft, and further comprising an angle detection device for detecting the rotation angle of the output shaft, characterized in that: The angle detection device adopts the contact type angle detection device according to any one of claims 1 to 4 above.

6. The electric flip drive according to claim 5, characterized in that: The rotating signal disk is installed on the end face of the final stage output gear of the reduction device, and the final stage output gear is installed for power output.

7. The electric flip drive according to claim 5, characterized in that: The rotating signal disk is the final stage output gear of the reduction device, and the brush is installed on the end face of the final stage output gear.

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