A high integration micro bubble sensor

Abstract

The application relates to the technical field of bubble detection, in particular to a high-integration micro bubble sensor which comprises a sensing module, a supporting module and a signal transmission module. The sensing module is arranged in the supporting module and is connected with a fluid pipeline through a fixing assembly, and an adjusting assembly is used for adjusting the position; a vibrating reed and a flow guide vane of a detection unit capture bubbles and change vibration characteristics, and a tuning unit transmits the changes to the signal transmission module. The application simplifies the structure through a micropore array and a flow guide groove design, improves the integration and precision, and improves the stability in combination with a non-slip mat and a protective sleeve. The sensor solves the problems of mechanical complexity, low integration and complicated maintenance of the existing device, meets the miniaturization and high-precision requirements, and is suitable for various fluid pipeline environments.

Description

Technical Field

[0001] This invention belongs to the field of sensor technology, specifically a highly integrated micro bubble sensor. Background Technology

[0002] In fluid transport and processing systems, bubble detection and control are crucial for ensuring the stability and safety of equipment operation. Currently, some bubble detection devices based on principles such as ultrasound, optical sensing, and pressure change exist on the market. However, these devices often have complex mechanical designs and low integration, making it difficult to meet the demands of miniaturization and high precision applications. Furthermore, these devices typically require additional auxiliary components for accurate detection in practical use, increasing the overall system size and installation complexity.

[0003] For example, a current bubble detection structure includes a mounting bracket, a sensor probe, and a signal processing module. The mounting bracket is bolted to the outside of a fluid pipe, the sensor probe is embedded inside the fluid pipe and connected to the signal processing module via a wire, and the signal processing module is further connected to an external display device. While this structure can achieve basic bubble detection, it imposes significant limitations on the size and shape of the fluid pipe in practical applications, and the installation and maintenance process is relatively cumbersome. These findings indicate that current technologies still have room for improvement in terms of miniaturization and high integration.

[0004] Therefore, we have made improvements to this by proposing a highly integrated micro bubble sensor. Utility Model Content

[0005] The purpose of this invention is to solve the problems of complex mechanical structure, low integration and cumbersome installation and maintenance of existing bubble detection devices, while meeting the application requirements of miniaturization and high precision.

[0006] To achieve the aforementioned objectives and address the aforementioned problems, this utility model provides a highly integrated miniature bubble sensor, comprising a sensing module, a support module, and a signal transmission module. The sensing module is housed within the support module and fixed to the outside of a fluid conduit via the support module. The signal transmission module is connected to the sensing module and transmits the detection signal to an external device. The sensing module includes a detection unit and a tuning unit, with the detection unit connected to the signal transmission module via the tuning unit. The support module includes a fixing component and an adjustment component. The fixing component is used to connect to the fluid conduit, and the adjustment component is located inside the fixing component and used to adjust the relative position between the sensing module and the fluid conduit.

[0007] The detection unit includes a vibrating plate and a flow guide plate. The surface of the vibrating plate has an array of multiple micropores. The flow guide plate is fixed to one side of the vibrating plate, and its edge has several flow grooves. The tuning unit includes an elastic support and a tuning spring. The elastic support is fixed to the other side of the vibrating plate, and one end of the tuning spring is connected to the elastic support, while the other end contacts the input terminal of the signal transmission module. When air bubbles are present in the fluid pipeline, they impact the vibrating plate after passing through the flow grooves of the flow guide plate, causing a change in the vibration frequency of the vibrating plate. The tuning spring transmits this change to the signal transmission module.

[0008] As a preferred technical solution of this application, the fixing component includes a clamping plate and a positioning screw. Threaded holes are respectively opened at both ends of the clamping plate, and the positioning screw passes through the threaded holes and contacts the outer wall of the fluid pipe. An anti-slip pad is provided on the inner side of the clamping plate, and the surface of the anti-slip pad has a wavy texture to increase the friction between the clamping plate and the fluid pipe.

[0009] As a preferred technical solution of this application, the adjustment component includes a slide rail and a slider. The slide rail is fixed to the inner side of the clamping plate, and the slider is slidably connected to the inside of the slide rail. The top of the slider is fixedly connected to the bottom of the sensing module. The side of the slide rail is provided with scale markings to indicate the movement distance of the slider.

[0010] As a preferred technical solution of this application, the signal transmission module includes a signal line and a connector. One end of the signal line is connected to a tuning spring, and the other end is fixedly connected to the connector. A protective sleeve made of flexible rubber is provided on the outside of the connector to protect the connector from the influence of the external environment.

[0011] As a preferred technical solution of this application, the micropore array of the vibrating plate is distributed in a honeycomb pattern, with each micropore having a diameter of 0.1 mm to 0.5 mm and a spacing of 0.2 mm to 0.6 mm between adjacent micropores. The flow guide plate has an arc-shaped flow guide groove with a width of 1 mm to 3 mm and a depth of 0.5 mm to 2 mm.

[0012] As a preferred technical solution of this application, the elastic support is made of high-strength aluminum alloy, and the tuning spring is made of stainless steel, with a spring constant of 5 N / mm to 20 N / mm. The surface of the elastic support is coated with an anti-corrosion coating to improve its corrosion resistance.

[0013] As a preferred technical solution of this application, the thickness of the clamping plate is 5 mm to 10 mm, and the length of the positioning screw is 20 mm to 50 mm. The thickness of the anti-slip pad is 2 mm to 5 mm, and the peak height of the wavy texture of the anti-slip pad is 0.5 mm to 1 mm.

[0014] As a preferred embodiment of this application, the length of the slide rail is 50 mm to 100 mm, the length of the slider is 10 mm to 20 mm, and the width of the slider is 5 mm to 10 mm. The minimum scale division of the scale is 1 mm, and the maximum range is the total length of the slide rail.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: In the scheme of this application: By employing a detection unit and a tuning unit, the micropore array of the vibrating plate and the flow channels of the guide plate capture and guide bubbles in the fluid, thereby altering the vibration characteristics of the vibrating plate. These vibration changes are then transmitted to the signal transmission module via a tuning spring. This design not only simplifies the mechanical structure but also achieves high integration and miniaturization. The support module connects to the fluid pipeline via a clamping plate and positioning screw. Combined with the slide rails and sliders of the adjustment component, the position of the sensing module can be precisely adjusted to adapt to fluid pipelines of different sizes and shapes. Furthermore, the wavy texture of the anti-slip pad and the flexible rubber material of the protective sleeve further enhance the stability and reliability of the device. These technical features work together to solve the problems of complex mechanical structures, low integration, and cumbersome installation and maintenance in existing bubble detection devices, while simultaneously meeting the application requirements of miniaturization and high precision. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention, showing the connection relationship between the sensing module, the support module, and the signal transmission module.

[0017] Figure 2 This is a magnified view of a portion of the sensing module, highlighting the structure of the vibrating plate and guide plate in the detection unit, as well as the way the elastic support and tuning spring work together in the tuning unit.

[0018] Figure 3 The exploded structural diagram of the support module shows in detail the clamping plate and positioning screw in the fixing component, as well as the composition and interconnection of the slide rail and slider in the adjusting component.

[0019] Figure 4 This is a schematic diagram of the signal transmission module, mainly showing the connection method between the signal line and the connector, as well as the protective function of the protective sleeve for the connector.

[0020] Figure 5 The diagram shows a detailed view of the micro-pore array of the vibrating plate and the flow guide groove of the flow guide plate, clearly demonstrating the distribution of the micro-pores and the shape characteristics of the flow guide groove.

[0021] The attached figures are labeled as follows: 1. Sensing module; 2. Support module; 3. Signal transmission module; 4. Vibrating plate; 5. Guide plate; 6. Elastic bracket; 7. Tuning spring; 8. Clamping plate; 9. Positioning screw; 10. Slide rail; 11. Slider; 12. Signal line; 13. Connector; 14. Protective sleeve; 15. Anti-slip pad. Detailed Implementation

[0022] This invention provides a highly integrated miniature bubble sensor, the overall structure of which is as follows: Figure 1 As shown, the system includes a sensing module 1, a support module 2, and a signal transmission module 3. The sensing module 1 is located inside the support module 2 and fixed to the outside of the fluid pipeline via the support module 2. The signal transmission module 3 is connected to the sensing module 1 and is used to transmit the detection signal to external devices. The sensing module 1 consists of a detection unit and a tuning unit. The detection unit includes a vibrating plate 4 and a guide plate 5, and the tuning unit includes an elastic support 6 and a tuning spring 7. The support module 2 consists of a fixing component and an adjusting component. The fixing component includes a clamping plate 8 and a positioning screw 9, and the adjusting component includes a slide rail 10 and a slider 11. The signal transmission module 3 includes a signal line 12, a connector 13, and a protective sleeve 14.

[0023] In the detection unit of sensing module 1, the specific structures of the vibrating plate 4 and the guide plate 5 are as follows: Figure 2 As shown. One side surface of the vibrating plate 4 has a multi-micropore array, distributed in a honeycomb pattern. Each micropore has a diameter of 0.1 mm to 0.5 mm, and the spacing between adjacent micropores is 0.2 mm to 0.6 mm. This structural design ensures that the impact of bubbles on the vibrating plate 4 can be effectively captured. A guide plate 5 is fixed to one side of the vibrating plate 4. The edge of the guide plate 5 has several arc-shaped guide grooves, with a width of 1 mm to 3 mm and a depth of 0.5 mm to 2 mm. These guide grooves can guide bubbles in the fluid to concentrate and impact specific areas of the vibrating plate 4, thereby changing the vibration characteristics of the vibrating plate 4. An elastic support 6 is fixed to the other side of the vibrating plate 4. The elastic support 6 is made of high-strength aluminum alloy, and its surface is coated with an anti-corrosion coating to improve corrosion resistance. One end of the tuning spring 7 is connected to the elastic bracket 6, and the other end is in contact with the signal line 12 of the signal transmission module 3. The tuning spring 7 is made of stainless steel and has an elastic coefficient of 5 N / mm to 20 N / mm. The tuning spring 7 transmits the vibration changes of the vibrating plate 4 to the signal transmission module 3 through elastic deformation.

[0024] The fixing and adjusting components of support module 2 are as follows: Figure 3As shown. The clamping plate 8 in the fixing assembly is used to connect with the fluid pipeline. Threaded holes are provided at both ends of the clamping plate 8. The positioning screw 9 passes through the threaded holes and contacts the outer wall of the fluid pipeline. The clamping force of the clamping plate 8 on the fluid pipeline can be adjusted by rotating the positioning screw 9. The thickness of the clamping plate 8 is 5 mm to 10 mm, and the length of the positioning screw 9 is 20 mm to 50 mm. An anti-slip pad 15 is provided on the inner side of the clamping plate 8. The thickness of the anti-slip pad 15 is 2 mm to 5 mm, and its surface has a wavy texture with a peak height of 0.5 mm to 1 mm. This design increases the friction between the clamping plate 8 and the fluid pipeline, preventing the device from sliding during use. The slide rail 10 in the adjustment assembly is fixed to the inside of the clamping plate 8. The length of the slide rail 10 is 50 mm to 100 mm. The slider 11 is slidably connected inside the slide rail 10. The top of the slider 11 is fixedly connected to the bottom of the sensing module 1. The length of the slider 11 is 10 mm to 20 mm, and the width is 5 mm to 10 mm. The side of the slide rail 10 is marked with scales, with a minimum scale of 1 mm and a maximum range equal to the total length of the slide rail 10. By moving the slider 11, the relative position between the sensing module 1 and the fluid pipe can be precisely adjusted to accommodate fluid pipes of different sizes and shapes.

[0025] The structure of signal transmission module 3 is as follows Figure 4 As shown, one end of the signal line 12 is connected to the tuning spring 7, and the other end is fixedly connected to the connector 13. A protective sleeve 14, made of flexible rubber, is provided on the outside of the connector 13 to protect it from external environmental influences. The signal transmission module 3 converts the vibration changes transmitted by the tuning spring 7 into electrical signals via the signal line 12, and outputs the signals to external devices through the connector 13.

[0026] Figure 5 The detailed features of the micropore array of the vibrating plate 4 and the flow guide groove of the flow guide plate 5 are shown. The distribution and size parameters of the micropore array can effectively capture the impact of bubbles, while the shape and size of the flow guide groove ensure that the bubbles can be concentrated and guided to a specific area of ​​the vibrating plate 4, thereby changing the vibration frequency of the vibrating plate 4. When there are bubbles in the fluid pipeline, the bubbles impact the vibrating plate 4 after passing through the flow guide groove of the flow guide plate 5, and the vibration frequency of the vibrating plate 4 changes. The tuning spring 7 transmits this change to the signal transmission module 3, which converts the vibration change into an electrical signal and outputs it to an external device.

[0027] The working process of this utility model is as follows: First, the clamping plate 8 is fixed to the outside of the fluid pipeline by the positioning screw 9. The clamping force of the clamping plate 8 is adjusted by rotating the positioning screw 9 to firmly fix the device on the fluid pipeline. Next, the position of the sensing module 1 is adjusted by adjusting the slide rail 10 and the slider 11 in the assembly to achieve the optimal detection state between the vibrating plate 4 and the fluid pipeline. When the fluid flows in the fluid pipeline, the air bubbles impact the vibrating plate 4 after passing through the guide groove of the guide plate 5, causing the vibration frequency of the vibrating plate 4 to change. The tuning spring 7 transmits the vibration change to the signal transmission module 3 through elastic deformation. The signal transmission module 3 converts the vibration change into an electrical signal and outputs it to an external device through the connector 13. The external device determines whether there are air bubbles in the fluid pipeline and the size and number of air bubbles based on the received signal.

[0028] This invention achieves high integration and miniaturization through the aforementioned structure, while simplifying the mechanical structure and solving the problems of complex mechanical structure, low integration, and cumbersome installation and maintenance in existing bubble detection devices. The wavy texture of the anti-slip pad 15 and the flexible rubber material of the protective sleeve 14 further enhance the stability and reliability of the device, enabling it to adapt to fluid pipelines of different sizes and shapes, and meeting the application requirements of miniaturization and high precision.

[0029] To enable those skilled in the art to fully understand and implement this utility model, the following supplementary explanation of the specific implementation principle of this utility model is provided in conjunction with a specific application scenario.

[0030] In practical applications, the highly integrated miniature bubble sensor of this invention can be widely used in infusion lines of medical equipment, industrial fluid handling systems, and precision laboratory instruments. For example, in medical infusion lines, the presence of bubbles can pose a serious threat to patients, thus requiring real-time monitoring and timely alarms. The following is a detailed explanation of the specific operating steps and principles based on the above scenarios.

[0031] First, for the installation of the fluid pipeline, the clamping plate 8 is fixed to the outside of the infusion line using the positioning screw 9. Specifically, the positioning screw 9 is rotated to adjust the clamping force of the clamping plate 8 on the infusion line, ensuring that the device can firmly adhere to the pipe wall without loosening. During this process, the anti-slip pad 15 on the inner side of the clamping plate 8 plays a crucial role. The wavy texture design of the anti-slip pad 15 increases friction, preventing the device from slipping due to vibration or external interference, thus ensuring the stability and reliability of the sensor. This design is particularly suitable for infusion lines of different materials and surface roughness, making it more adaptable.

[0032] Next, the position of the sensing module 1 is precisely adjusted by adjusting the slide rail 10 and slider 11 in the assembly. As the slider 11 moves along the slide rail 10, the scale markings on the side of the slide rail 10 visually indicate the displacement of the slider 11, with a minimum scale of 1 mm and a maximum range equal to the total length of the slide rail 10. In this way, the relative position between the sensing module 1 and the infusion tubing can be adjusted to the optimal detection state. This adjustment mechanism not only simplifies the installation process but also improves detection accuracy, and is particularly suitable for infusion tubing of different diameters or shapes.

[0033] When the liquid flows within the infusion tubing, the guide grooves of the guide plate 5 begin to function. These guide grooves are arc-shaped, with a width ranging from 1 mm to 3 mm and a depth ranging from 0.5 mm to 2 mm. These parameters are optimized to effectively guide air bubbles in the liquid to concentrate and impact specific areas of the vibrating plate 4. Because the surface of the vibrating plate 4 has a honeycomb-shaped array of micropores, each micropore having a diameter of 0.1 mm to 0.5 mm and a spacing between adjacent micropores of 0.2 mm to 0.6 mm, this structural design maximizes the capture of the impact of air bubbles on the vibrating plate 4. When air bubbles impact the vibrating plate 4, its vibration frequency changes, and this change is transmitted to the tuning spring 7 by the elastic support 6.

[0034] The tuning spring 7, a key signal transmission element, is made of stainless steel with an elastic coefficient ranging from 5 N / mm to 20 N / mm. Through elastic deformation, the tuning spring 7 converts the vibration changes of the vibrating plate 4 into mechanical signals, which are then transmitted to the signal transmission module 3. The signal line 12 in the signal transmission module 3 converts the mechanical signals into electrical signals, which are ultimately output to external devices via connector 13. The protective sleeve 14 on the outside of connector 13 is made of flexible rubber, effectively protecting connector 13 from external environmental influences and ensuring the stability of signal transmission.

[0035] After receiving an electrical signal, the external device can determine the presence, size, and number of air bubbles in the infusion tubing based on signal changes. For example, larger air bubbles have a stronger impact on the vibrating plate 4, resulting in a greater amplitude of vibration frequency changes and thus a higher intensity electrical signal. By analyzing the signal characteristics, the external device can monitor the air bubble status in real time and trigger an alarm mechanism when necessary to remind medical personnel to take appropriate measures.

[0036] In summary, this invention achieves efficient bubble capture and guidance through the synergistic effect of the micropore array of the vibrating plate 4 and the flow channel of the guide plate 5; and achieves precise transmission of vibration changes into electrical signals through the elastic deformation of the tuning spring 7 and the signal conversion of the signal transmission module 3. Simultaneously, the clamping plate 8, positioning screw 9, slide rail 10, and slider 11 of the support module 2 work together to ensure the stability and adaptability of the device. The organic combination of these technical features not only solves the problems of complex mechanical structure, low integration, and cumbersome installation and maintenance in existing bubble detection devices, but also significantly improves the miniaturization and high-precision performance of the device, meeting the needs of various application scenarios.

[0037] All content not described in detail in this specification is prior art known to those skilled in the art, and the model parameters of each component are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are prior art and are therefore not shown in the figures, nor will they be described further here.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., 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. A highly integrated miniature bubble sensor, characterized in that, The system includes a sensing module (1), a support module (2), and a signal transmission module (3). The sensing module (1) is located inside the support module (2) and fixed to the outside of the fluid pipe through the support module (2). The signal transmission module (3) is connected to the sensing module (1) and is used to transmit the detection signal to an external device. The sensing module (1) includes a detection unit and a tuning unit. The detection unit is connected to the signal transmission module (3) through the tuning unit. The detection unit includes a vibrating plate (4) and a guide plate (5). One side surface of the vibrating plate (4) is provided with a plurality of micropore arrays. The guide plate (5) is fixed to one side of the vibrating plate (4) and has several guide grooves on its edge; the tuning unit includes an elastic bracket (6) and a tuning spring (7). The elastic bracket (6) is fixed to the other side of the vibrating plate (4). One end of the tuning spring (7) is connected to the elastic bracket (6), and the other end is in contact with the input end of the signal transmission module (3); the support module (2) includes a fixing component and an adjustment component. The fixing component is used to connect with the fluid pipe, and the adjustment component is located inside the fixing component and is used to adjust the relative position between the sensing module (1) and the fluid pipe.

2. The highly integrated microbubble sensor according to claim 1, characterized in that, The fixing component includes a clamping plate (8) and a positioning screw (9). The clamping plate (8) has threaded holes at both ends. The positioning screw (9) passes through the threaded holes and contacts the outer wall of the fluid pipe. The clamping plate (8) has an anti-slip pad (15) on its inner side. The surface of the anti-slip pad (15) has a wavy texture.

3. The highly integrated microbubble sensor according to claim 2, characterized in that, The adjustment assembly includes a slide rail (10) and a slider (11). The slide rail (10) is fixed to the inside of the clamping plate (8). The slider (11) is slidably connected to the inside of the slide rail (10). The top of the slider (11) is fixedly connected to the bottom of the sensing module (1). The side of the slide rail (10) is provided with scale markings.

4. The highly integrated microbubble sensor according to claim 1, characterized in that, The signal transmission module (3) includes a signal line (12) and a connector (13). One end of the signal line (12) is connected to the tuning spring (7), and the other end is fixedly connected to the connector (13). A protective sleeve (14) is provided on the outside of the connector (13), and the material of the protective sleeve (14) is flexible rubber.

5. A highly integrated microbubble sensor according to claim 1, characterized in that, The micropore array of the vibrating plate (4) is distributed in a honeycomb pattern, with each micropore having a diameter of 0.1 mm to 0.5 mm and a spacing of 0.2 mm to 0.6 mm between adjacent micropores. The flow guide plate (5) has an arc-shaped flow guide groove with a width of 1 mm to 3 mm and a depth of 0.5 mm to 2 mm.

6. A highly integrated microbubble sensor according to claim 1, characterized in that, The elastic support (6) is made of high-strength aluminum alloy, the tuning spring (7) is made of stainless steel, the elastic coefficient of the tuning spring (7) is 5 Newtons per millimeter to 20 Newtons per millimeter, and the surface of the elastic support (6) is coated with an anti-corrosion coating.

7. A highly integrated microbubble sensor according to claim 2, characterized in that, The clamping plate (8) has a thickness of 5 mm to 10 mm, the positioning screw (9) has a length of 20 mm to 50 mm, the anti-slip pad (15) has a thickness of 2 mm to 5 mm, and the wave crest height of the wavy texture of the anti-slip pad (15) is 0.5 mm to 1 mm.

8. A highly integrated microbubble sensor according to claim 3, characterized in that, The slide rail (10) has a length of 50 mm to 100 mm, the slider (11) has a length of 10 mm to 20 mm and a width of 5 mm to 10 mm, the minimum scale of the scale mark is 1 mm, and the maximum range is the total length of the slide rail (10).

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