A drive-integrated filter electric switching device

Abstract

The utility model discloses a filter electric switching device of drive control integration, including base, motor support shell, drive control circuit board, hall formula position detection subassembly, filter mounting disc, filter and motor, hall formula position detection subassembly includes magnet and hall effect sensor, and the motor support shell is installed on base, drive control circuit board is located the inside of motor support shell, and motor drive module and programmable logic controller are installed on drive control circuit board, and the motor is fixedly installed on motor support shell, and the output shaft of motor is fixedly connected filter mounting disc, a plurality of filter mounting round holes are arranged in the circumference on filter mounting disc, and one filter is installed in each filter mounting round hole respectively, and the magnet is also installed on filter mounting disc, and the hall effect sensor is installed on drive control circuit board, the utility model discloses can guarantee that filter can switch to the required position fast, accurate, satisfies the requirement of different optical detection task to filter wavelength or optical density.

Description

Technical Field

[0001] This utility model belongs to the field of optical filter devices, and more specifically, relates to an integrated drive and control electric switching device for optical filters. Background Technology

[0002] With the rapid development of science and technology, the demand for precise characterization of material optical properties and real-time, rapid acquisition of sample information is becoming increasingly urgent in many fields. Against this backdrop, the photonics industry has ushered in a vigorous wave of upgrades, and various detection technologies are constantly advancing to meet the ever-emerging complex application scenarios and high-precision detection requirements. The filter wheel, as an indispensable key component of a multi-channel fluorescence microscope system, plays a crucial role. It is precisely installed in the paths of excitation and emission signals and equipped with filters capable of selecting different wavelengths, thus providing the microscope with high-speed and precise control over light color. Whether used to excite samples or for quantitative analysis via detectors / cameras, the filter is critical, ensuring the normal operation and detection accuracy of the entire optical system.

[0003] Traditional filter rollers are mainly divided into two types: manual and electric. While manual filter rollers are simple in structure and low in cost, they present several inconveniences in practical operation. Firstly, manually switching filters is not only slow, making it difficult to meet the demands of rapid testing, but also prone to inaccurate filter positioning due to human error, thus affecting the accuracy and reliability of the test results. Secondly, in complex experiments requiring continuous filter changes over extended periods, manual operation significantly increases the workload and fatigue of the experimenters, and may even lead to interruptions or delays in the experimental process. Therefore, manual filter rollers are increasingly unable to meet the demands of modern scientific research and industrial production for efficient, accurate, and stable testing technologies.

[0004] Traditional filter rollers have relatively low integration, and the drive and control circuitry is usually external to the mechanical body, resulting in a large number of external wires. This not only increases the difficulty of installation and the probability of errors, but also limits the flexibility and adaptability of the equipment to some extent. In applications requiring frequent movement or use in special environments, the complex and cumbersome external wiring is easily damaged or interfered with, thus affecting the normal operation and reliability of the equipment. At the same time, the low integration also makes it difficult to effectively control the size of the equipment, making it difficult to meet the urgent needs of modern scientific research and industrial production for miniaturized and portable devices. Utility Model Content

[0005] In view of the above-mentioned defects or improvement needs of the existing technology, this utility model provides a filter electric switching device with integrated drive and control. The motor drive module and programmable logic controller are integrated on the drive and control circuit board and directly fixed to the inside of the motor support to drive and control the motor rotation. The traditional external control box is eliminated, which greatly reduces the overall size compared with similar products.

[0006] To achieve the above objectives, according to this utility model, a drive-control integrated electric filter switching device is provided, characterized in that it includes a base, a motor support housing, a drive-control circuit board, a Hall effect position detection component, a filter mounting disk, a filter, and a motor. The Hall effect position detection component includes a cooperating magnet and a Hall effect sensor, wherein:

[0007] The motor support shell is mounted on the base;

[0008] The drive control circuit board is mounted on the motor support housing and is located inside the motor support housing;

[0009] The drive control circuit board is equipped with a motor drive module and a programmable logic controller, and the motor drive module is connected to the motor and the programmable logic controller respectively.

[0010] The motor is fixedly mounted on the motor support housing, and the output shaft of the motor is fixedly connected to the filter mounting disk;

[0011] The filter mounting disk has a plurality of filter mounting holes arranged circumferentially, and a filter is installed in each of the filter mounting holes. The magnet is also installed on the filter mounting disk.

[0012] The Hall effect sensor is mounted on the drive control circuit board and is connected to the programmable logic controller to obtain the rotational position of the filter mounting disk.

[0013] Preferably, the motor support housing is provided with heat dissipation grooves to facilitate heat dissipation from the drive control circuit board.

[0014] Preferably, thermally conductive silicone is provided between the motor drive module and the inner wall of the motor support housing.

[0015] Preferably, the drive control circuit board is provided with a USB Type-C interface for wired connection with an external host computer, and the USB Type-C interface is connected to the programmable logic controller.

[0016] Preferably, the programmable logic controller is provided with I / O ports.

[0017] Preferably, the drive control circuit board has two control buttons on its edge, each control button is connected to a programmable logic controller and each control button extends beyond the outer surface of the motor support housing.

[0018] Preferably, the filter has a diameter of 25.4 mm and a maximum thickness of 6.35 mm.

[0019] Preferably, the motor support housing is provided with a measuring hole at the position corresponding to the Hall effect sensor, so that the Hall effect sensor can detect the magnetic field of the magnet.

[0020] Preferably, the motor drive module is mounted on the drive control circuit board.

[0021] Preferably, the motor is a stepper motor.

[0022] In summary, compared with the prior art, the above-described technical solution conceived by this utility model can achieve the following beneficial effects:

[0023] 1) This utility model discloses an integrated drive and control electric filter switching device. The base provides a stable installation foundation for the entire device; the motor support shell supports the motor and protects the internal drive and control circuit board and related components, ensuring stable motor operation; the drive and control circuit board integrates a motor drive module and a programmable logic controller, realizing precise motor drive and intelligent control, enabling the motor to accurately drive the filter mounting disk to rotate according to a preset program or external instructions; the magnet and Hall effect sensor in the Hall-type position detection component work together to detect the rotation position of the filter mounting disk in real time and feed the position signal back to the programmable logic controller, thereby realizing accurate monitoring and automatic calibration of the filter position, ensuring that the filter can be quickly and accurately switched to the required position, meeting the requirements of different optical detection tasks for filter wavelength or optical density.

[0024] 2) The electric filter switching device with integrated drive and control of this utility model sets the drive and control circuit board inside the motor support housing and tightly integrates it with the mechanical components, which greatly improves the integration of the device. Compared with the electric filter wheel with the traditional external control box, it reduces a lot of external wiring, reduces the installation difficulty and the probability of error, and improves the reliability and stability of the equipment. At the same time, it makes the equipment structure more compact and the size is effectively controlled, making it easier to use and install in space-constrained environments, thus meeting the needs of modern scientific research and industrial production for miniaturized and portable equipment.

[0025] 3) The electric filter switching device integrating drive and control of this utility model adopts Hall effect position detection component and uses magnetic field induction principle to realize non-contact measurement of the position of filter mounting disk. It has the advantages of high accuracy, fast response and strong anti-interference ability. It can ensure the accuracy and repeatability of filter switching, effectively avoid the problem of inaccurate filter positioning caused by human operation error or mechanical wear, and improve the accuracy and reliability of detection results.

[0026] 4) This utility model discloses an integrated drive and control electric filter switching device. A programmable logic controller (PLC) and a motor drive module are integrated on a drive and control circuit board to control and drive the motor. The device can be flexibly programmed according to different application scenarios and experimental requirements, realizing diverse switching modes and control strategies. This greatly enhances the versatility and applicability of the device, improving experimental efficiency and automation. Furthermore, by integrating the motor drive module and control logic onto the same circuit board and directly fixing it inside the motor support, the device not only reduces signal transmission loss and interference, improving control performance and stability, but also lowers material costs and eliminates the need for an external control box and its connecting cables. Attached Figure Description

[0027] Figure 1 and Figure 2 These are schematic diagrams of the structure of this utility model from different perspectives;

[0028] Figure 3 This is a schematic diagram of the present invention after a portion has been removed.

[0029] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically:

[0030] 1. Filter mounting disc; 2. Filter mounting hole; 3. Magnet; 4. Base; 5. Bottom fixing hole; 6. Motor support housing; 7. Motor; 8. Drive control circuit board. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0032] Reference Figure 1 , Figure 2A filter electric switching device integrating drive and control includes a base 4, a motor support shell 6, a drive and control circuit board 8, a Hall effect position detection component, a filter mounting disk 1, a filter, and a motor 7. The Hall effect position detection component includes a magnet 3 and a Hall effect sensor that cooperate with each other, wherein:

[0033] The motor support shell 6 is mounted on the base 4;

[0034] The drive control circuit board 8 is mounted on the motor support housing 6 and is located inside the motor support housing 6. The drive control circuit board 8 is not exposed or is placed in a separate control box. It is directly integrated with the mechanical body, effectively reducing the device size. The integration of the drive control circuit board 8 with the mechanical body reduces external wiring, lowers installation time by 70%, and makes the device compact and suitable for tight spaces. Furthermore, it eliminates the need for a separate driver housing and connecting cables, reducing material costs by 25%. The base 4 has bottom fixing holes 5 for fixing the base 4 to other platforms.

[0035] The drive control circuit board 8 is equipped with a motor drive module and a programmable logic controller. The motor drive module is connected to the motor 7 and the programmable logic controller, respectively.

[0036] The motor 7 is fixedly mounted on the motor support housing 6, and the output shaft of the motor 7 is fixedly connected to the filter mounting disk 1, so the motor 7 can drive the filter mounting disk 1 to rotate.

[0037] The filter mounting disk 1 has a plurality of filter mounting holes 2 arranged circumferentially, and a filter (not shown in the figure) is installed in each filter mounting hole 2. The magnet 3 is also installed on the filter mounting disk 1.

[0038] The Hall effect sensor is mounted on the drive control circuit board 8 and is connected to the programmable logic controller to obtain the rotational position of the filter mounting disk 1. When the output shaft of the motor 7 rotates, the filter mounting disk 1 and the magnet 3 on the filter mounting disk 1 also rotate. The spatial position of the magnet 3 changes, and the magnet 3 periodically approaches and moves away from the Hall sensor, causing periodic changes in the magnetic field strength. The Hall sensor can obtain the position of the magnet 3 based on the changes in the magnetic field.

[0039] The diameter of the filter mounting disk 1 of this device is about 100mm, the overall height of the device is less than 120mm (including the motor 7), and the volume is reduced by more than 30% compared with similar products.

[0040] The filter mounting disc 1 of this invention preferably has six filter mounting holes 2, each capable of mounting a filter with a direct diameter Φ = 1 inch (25.4 mm) and a maximum thickness of 6.35 mm. The motor support housing 6 supports the motor 7 and is fixed in place after being connected to the base 4.

[0041] Furthermore, the motor support housing 6 is provided with heat dissipation slots to facilitate heat dissipation for the drive control circuit board 8. By providing heat dissipation slots, the heat dissipation efficiency of the integrated drive control circuit board can be effectively improved, preventing problems such as performance degradation and parameter drift of electronic components due to excessive temperature, extending the service life of the drive control circuit board 8, and improving the reliability and stability of the device. At the same time, good heat dissipation conditions help maintain the output power and control accuracy of the motor drive module, ensuring that the motor 7 can operate continuously and stably, providing power support for the accurate switching of the filter.

[0042] Furthermore, thermally conductive silicone is provided between the motor drive module and the inner wall of the motor support housing 6. The use of thermally conductive silicone significantly improves the heat dissipation of the motor drive module, effectively reducing its operating temperature, minimizing the risk of failure due to overheating, and improving the reliability and stability of the motor drive module. This, in turn, ensures the normal operation of the entire device and the accuracy of filter switching. Simultaneously, the insulating properties of the thermally conductive silicone prevent electrical contact between the motor drive module and the motor support housing 6, avoiding electrical faults such as short circuits and improving the safety of the device.

[0043] Furthermore, the drive control circuit board 8 is equipped with a USB Type-C interface for wired connection to an external host computer. This USB Type-C interface connects to the programmable logic controller (PLC). The USB Type-C interface allows for direct computer / mobile phone control, while physical buttons facilitate debugging. The USB Type-C interface provides a convenient communication method for wired connection between the device and the external host computer. Its small size, easy plugging and unplugging, and reversible insertion make it easy for users to connect and operate. Through this interface, the PLC can transmit data and communicate with the host computer, enabling remote control, parameter setting, firmware upgrades, and other functions. It also facilitates uploading data such as filter position information acquired by the device to the host computer for further processing and analysis. The introduction of the USB Type-C interface greatly improves the ease of use and versatility of the device, allowing users to easily and quickly connect and communicate with external devices, achieving intelligent control and management of the device. Users can flexibly configure and operate the filter switching device through the host computer software to meet different experimental and application needs, improving work efficiency and user experience.

[0044] Furthermore, the programmable logic controller is provided with I / O ports. Precise timing synchronization with devices such as cameras and light sources is achieved through trigger signals. The I / O ports are built-in opto-isolated I / O interfaces that support external TTL triggering, enabling the filter mounting disk 1 to rotate and switch filters, and can output a signal indicating the completion of the switch to other devices. The I / O ports provide an interface for signal interaction between the device and other external devices. The I / O ports can be connected to various external sensors, actuators, or other control devices to achieve extended control of the device and collaborative work with other devices. The setting of the I / O ports enhances the expandability and flexibility of the device, enabling it to better integrate into complex optical detection systems and achieve seamless docking and collaborative work with other devices. Through the interlocking control with other devices, more complex detection processes and experimental operations can be realized, improving the detection efficiency and accuracy, and meeting the diverse needs in different application scenarios.

[0045] Furthermore, multiple control buttons are provided on the edge of the drive and control circuit board 8. Each control button is respectively connected to the programmable logic controller and each control button extends beyond the outer surface of the motor support housing 6. Therefore, this device can support both USB Type-C digital communication control (compatible with UART / USB HID) and physical button local switching at the same time. The two control buttons are waterproof buttons, respectively supporting short presses (single-step switching) and long presses (return to zero position). The top of the control buttons is about 1.5 mm higher than the outer surface of the support member, which is convenient for operation. The communication interface between the motor 7 and the host computer is a USB-Type-C full-speed communication interface. After the programmable logic controller on the drive and control circuit board 8 reads the control information of the control buttons, it feeds back to the host computer, and rotates the filter on the filter mounting disk 1 to the corresponding position according to the instructions sent by the host computer.

[0046] Furthermore, the center line of the filter is perpendicular to the drive and control circuit board 8. The drive and control circuit board 8 and the support member of the motor 7 adopt a common substrate structure (the side wall of the support member of the motor 7 extends to form a mounting platform), so that the circuit and the optical path are orthogonally arranged in three-dimensional space, compressing the thickness. The user can directly control the device by pressing the control buttons, such as manually switching the filter, returning to the zero position, etc., without relying on an external host computer or other devices, which is convenient for quick operation and function testing during the debugging process or when there is no host computer. The design of the control buttons improves the operation convenience and independence of the device, enabling the user to intuitively and quickly control and operate the device, reducing the dependence on the host computer, and facilitating on-site debugging and emergency operations.

[0047] Furthermore, the motor support housing 6 has a measuring hole at the position corresponding to the Hall effect sensor, so that the Hall effect sensor can detect the magnetic field of the magnet 3. The measuring hole provides convenient conditions for the Hall effect sensor to detect the magnetic field of the magnet 3. The measuring hole enables the Hall effect sensor to perceive changes in the magnetic field more accurately, improving the accuracy and reliability of position detection. At the same time, the measuring hole also helps to reduce the interference of the motor support housing 6 on the magnetic field, ensuring that the Hall effect sensor can truly and accurately reflect the position information of the magnet 3, thereby realizing precise monitoring and control of the rotation position of the filter mounting disk 1, so that the filter can reach the required position.

[0048] Furthermore, the motor drive module is mounted on the drive control circuit board 8, achieving a high degree of integration between the motor 7 drive circuit and the control circuit. This mounting method not only saves space and reduces the size of the device, but also reduces the number of connecting lines between the motor drive module and the control circuit, reducing signal loss and interference during signal transmission, improving the efficiency and reliability of signal transmission, and ensuring that the motor drive module can accurately receive and execute the control commands issued by the programmable logic controller, thereby achieving precise driving and control of the motor 7.

[0049] Furthermore, the motor 7 is a stepper motor. Using a stepper motor as the drive source offers advantages such as high control precision, rapid start-stop, and smooth operation. It can precisely control the rotation angle and speed of the motor 7 based on the input pulse signal, thereby achieving precise step-by-step rotation control of the filter mounting disk 1. This ensures that the filter can quickly and accurately switch to the target position and remain stable during the switching process, avoiding filter position overshoot or jitter caused by the rotational inertia or excessive speed of the motor 7, thus improving the accuracy and stability of filter switching.

[0050] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An integrated filter motorized switching device, characterized in that, The application relates to a motorized filter wheel, which comprises a base, a motor support shell, a drive control circuit board, a Hall position detection assembly, a filter mounting disc, filters and a motor, wherein the Hall position detection assembly comprises a magnet and a Hall effect sensor matched with each other. The motor support shell is mounted on the base; The drive control circuit board is mounted on the motor support shell and located in the interior of the motor support shell; The drive control circuit board is mounted with a motor drive module and a programmable logic controller, and the motor drive module is connected with the motor and the programmable logic controller respectively; The motor is fixedly mounted on the motor support shell, and the output shaft of the motor is fixedly connected with the filter mounting disc; A plurality of filter mounting holes are arranged on the filter mounting disc in a circumferential direction, one filter is mounted in each filter mounting hole, and the magnet is further mounted on the filter mounting disc; The Hall effect sensor is mounted on the drive control circuit board and connected with the programmable logic controller, so as to obtain the rotating position of the filter mounting disc.

2. The drive-integrated electro-optical switching device of claim 1, wherein, The motor support shell is provided with a heat dissipation groove, so that the drive control circuit board can be cooled.

3. The filter motorized switching device of claim 1, wherein, The motor drive module and the inner side wall of the motor support shell are provided with heat-conducting silica gel.

4. The drive-integrated electro-optical switching device of claim 1, wherein, The drive control circuit board is provided with a USB Type-C interface for wired connection with an external host computer, and the USB Type-C interface is connected with the programmable logic controller.

5. The drive-integrated electro-optical switching device of claim 1, wherein, The programmable logic control is provided with an I / O port.

6. The drive-integrated electro-optical switching device of claim 1, wherein, The edges of the drive control circuit board are provided with two control buttons, each of which is connected with the programmable logic controller and each of which exceeds the outer surface of the motor support shell.

7. The drive-integrated electro-optical switching device of claim 1, wherein, The diameter of the filter is 25.4 mm, and the maximum thickness is 6.35 mm.

8. The drive-integrated electro-optical switching device of claim 1, wherein, The motor support shell is provided with a measuring hole at a position corresponding to the Hall effect sensor, so that the Hall effect sensor can detect the magnetic field of the magnet.

9. The drive-integrated electro-optical switching device of claim 1, wherein, The motor drive module is attached to the drive control circuit board.

10. The drive-integrated electro-optical switching device of claim 1, wherein, The motor is a stepping motor.

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