A precise smell recognition module air duct for a robot

Abstract

The application provides a precise smell recognition module air duct for a robot, and particularly relates to the technical field of gas detection and robot sensing. The module air duct adopts a double-layer embedding structure: an outer shell is formed by splicing an upper shell and a lower shell to form a first chamber, and an insert formed by splicing an upper shell insert and a lower shell insert is arranged in the first chamber, and the two form a second chamber. A high-speed motor and an air inlet dustproof net are arranged in the second chamber, airflow enters through the flared opening, is filtered through the dustproof net, and then flows through the second chamber and the first chamber in sequence under the driving of the high-speed motor, and is finally uniformly discharged through the gap between the outer shell and the insert. Through the closed air duct and the directional drainage design, the airflow stability and the smell detection accuracy are significantly improved, and the module air duct is suitable for a high-precision robot smell recognition system.

Description

Technical Field

[0001] This invention provides a precise odor recognition module air duct for robots, specifically relating to the fields of gas detection and robot perception technology. Background Technology

[0002] Currently, odor recognition modules are gradually being applied to automated equipment such as service robots and inspection robots. The air duct structure directly determines the odor collection efficiency, sensor response speed, and recognition accuracy. Existing robot odor recognition air ducts often suffer from problems such as disordered airflow guidance, uneven air intake distribution, and turbulent internal flow fields. These issues can easily lead to delayed diffusion of odor molecules and inconsistent gas concentrations in the sensor detection area, resulting in defects such as recognition lag and large detection errors. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the present invention provides an air duct for a precise odor recognition module for robots, which can effectively solve the related technical problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: An air duct for a precision odor recognition module for robots, comprising: The outer shell has a flared structure and is formed by splicing an upper shell and a lower shell to form a first chamber. An insert, disposed within the first cavity, is shaped to fit the outer shell and is formed by splicing an upper shell insert and a lower shell insert together. The upper shell insert is fitted into the inner wall of the upper shell, and the lower shell insert is fitted into the inner wall of the lower shell. The airflow enters the second chamber through the flared opening of the outer shell, then enters the first chamber, and finally exits through the gap between the inner wall of the outer shell and the insert. The second chamber is equipped with a high-speed motor and a dust filter. The air enters through the flared opening of the outer shell, and after impurities are separated by the dust filter, it flows into the second chamber. Driven by the high-speed motor, the gas is introduced into the first chamber and finally discharged through the gap between the inner wall of the outer shell and the insert.

[0005] Furthermore, the top of the inner walls of the upper and lower shells are respectively provided with two rows of first connecting buckles and second connecting buckles, and the shell is connected to the robot through the first connecting buckles and the second connecting buckles.

[0006] Furthermore, the upper inner walls of the upper shell and the lower shell are respectively provided with a first hemispherical wind wall and a second hemispherical wind wall.

[0007] Furthermore, the inner walls of the upper shell and the lower shell are respectively provided with a plurality of first locking components and second locking components; The outer walls of the cylindrical sections of the upper and lower shell inserts are respectively provided with a first rectangular boss and a second rectangular boss uniformly along the circumferential direction. The upper shell is fixedly connected to the upper shell insert by the engagement of the first locking component with the first rectangular boss, and the lower shell is fixedly connected to the lower shell insert by the engagement of the second locking component with the second rectangular boss.

[0008] Furthermore, the inner walls of the flared sections of the upper and lower shell inserts are each uniformly provided with two first infrared distance detectors and two second infrared distance detectors along the circumferential direction.

[0009] Furthermore, the inner walls of the flared sections of the upper and lower shell inserts are each uniformly provided with five first VOC odor sensors and two VOC odor sensors along the circumference. The first VOC odor sensors and the second VOC odor sensors are both located between the dustproof mesh and the infrared distance detector.

[0010] Furthermore, the outer walls of the flared sections of the upper and lower shell inserts are respectively uniformly arranged with a first airflow guiding partition plate and a second airflow guiding partition plate along the circumferential direction.

[0011] Furthermore, the air duct of a precise odor recognition module for robots also includes: PCBA control board 5 is assembled in the hollow cavity of the outer shell 1 away from the flared end.

[0012] Furthermore, the air duct of a precise odor recognition module for robots also includes: Adapter 6 is disposed at the tail of the hemispherical wind wall of the outer shell 1.

[0013] Compared with the known prior art, the technical solution provided by this invention has the following beneficial effects: Firstly, the uniform airflow guidance significantly improves recognition accuracy. The horn-shaped flared air intake structure, combined with the circumferentially arranged airflow guide partitions, allows the odor airflow to flow stably and evenly through the VOC sensor detection area, avoiding problems such as internal flow field disturbance and uneven gas distribution, greatly reducing detection errors and improving the accuracy of odor recognition.

[0014] Secondly, the active flow diversion and efficient flow guidance result in a faster response speed. The high-speed motor generates directional suction, actively driving the odor airflow to quickly enter the detection zone; the hemispherical wind wall forms a closed flow guiding cavity, realizing smooth gas turning and smooth discharge, effectively shortening the diffusion and response time of odor molecules, and improving the module's detection response efficiency.

[0015] Thirdly, the multi-sensor collaboration makes detection more stable and reliable. Multiple VOC odor sensors are evenly arranged around the perimeter, combined with an infrared distance detector to achieve precise target positioning. The front-end dustproof net blocks impurities and avoids dust interference with detection, resulting in better stability and durability over long-term use. Attached Figure Description

[0016] Figure 1 This is a front-view three-dimensional structural diagram of the air duct of a precise odor recognition module for robots proposed in this invention; Figure 2 This is a schematic diagram of a connection clip for an air duct of a precise odor recognition module for robots proposed in this invention; Figure 3 This is a schematic diagram of a hemispherical air wall for a precise odor recognition module for robots proposed in this invention. Figure 4 This is a schematic diagram of a locking component for the air duct of a precise odor recognition module for robots, as proposed in this invention. Figure 5 This is a schematic diagram of a rectangular boss in the air duct of a precise odor recognition module for robots proposed in this invention. Figure 6 This is a schematic diagram of an infrared distance detector for the air duct of a precision odor recognition module for robots, as proposed in this invention. Figure 7 This is a schematic diagram of the VOC odor sensor arrangement in the air duct of a precision odor recognition module for robots proposed in this invention. Figure 8 This is a schematic diagram of the airflow guiding partition plate structure of an air duct for a precise odor recognition module for robots proposed in this invention; Figure 9 This is a schematic diagram of the PCBA control board installation for a precise odor recognition module air duct for robots, as proposed in this invention. Figure 10 This is a schematic diagram of the installation of an adapter for the air duct of a precise odor recognition module for robots, as proposed in this invention.

[0017] The labels in the diagram represent: 1-Outer shell, 11-Upper shell, 111-First connecting buckle, 112-First hemispherical wind wall, 113-First locking component, 12-Lower shell, 121-Second connecting buckle, 122-Second hemispherical wind wall, 123-Second locking component, 2-Installer insert, 21-Upper shell insert, 211-First rectangular boss, 212-First infrared distance detector, 213-First VOC odor sensor, 214-First airflow diversion partition plate, 22-Lower shell insert, 221-Second rectangular boss, 222-Second infrared distance detector, 223-Second VOC odor sensor, 224-Second airflow diversion partition plate, 3-High-speed motor, 4-Dustproof net, 5-PCBA control board, 6-Adapter. Detailed Implementation

[0018] The present invention will be further described below with reference to embodiments.

[0019] Existing odor recognition ducts for robots generally suffer from technical defects such as unreasonable structural design, disordered airflow organization, and uneven air intake distribution. Most ducts adopt conventional straight-cylinder or open structures, lacking directional airflow and uniform air distribution design. This causes the odor airflow to easily form eddies, stagnate, and diffuse delayed inside, making it impossible to flow stably and evenly through the sensor detection area. This results in inconsistent gas concentrations in the detection areas of different sensors, leading to problems such as recognition lag, large detection errors, and high false detection rates.

[0020] Meanwhile, existing air ducts often lack regular flow guidance structures, resulting in obstructed gas deflection and exhaust paths. This can easily lead to residual odor molecules and cross-interference, affecting the stability of continuous detection. Furthermore, the overall structure has low integration and complex assembly, and its dust protection and environmental adaptability are insufficient, making it difficult to meet the robot's requirements for high-precision, high-response, and high-stability odor recognition in complex scenarios.

[0021] To overcome the aforementioned drawbacks, the present invention employs the following embodiments to address the current situation.

[0022] Example 1: Reference Appendix Figure 1 This is a front-view three-dimensional structural diagram of an air duct for a precise odor recognition module used in robots, which includes: The outer shell 1 is provided with a flared structure and is formed by splicing an upper shell 11 and a lower shell 12 to form a first chamber; Insert 2, disposed within the first cavity, is shaped to fit the outer shell 1 and is formed by splicing upper shell insert 21 and lower shell insert 22. The two are combined to form a second chamber; the upper shell insert 21 is gapped into the inner wall of the upper shell 11, and the lower shell insert 22 is gapped into the inner wall of the lower shell 12. The airflow enters the second chamber through the flared opening of the outer shell 1, then enters the first chamber, and finally exits through the gap between the inner wall of the outer shell 1 and the insert 2. The second chamber is equipped with a high-speed motor 3 and a dustproof net 4. The air enters through the flared opening of the outer shell 1, and after being separated from impurities by the dustproof net 4, it flows into the second chamber. Driven by the high-speed motor 3, the gas is introduced into the first chamber and finally discharged through the gap between the inner wall of the outer shell 1 and the insert 2.

[0023] In this example, a wide-range air intake is achieved through the flared outer shell 1, and a high-speed motor 3 generates directional suction to drive the external odor airflow into the air duct. After being filtered by a dust filter, the gas flows smoothly through the sensor area to complete the odor signal acquisition. Then, the internal insert 2 cooperates with the shell to form a closed flow guide cavity, realizing the orderly turning and smooth discharge of the airflow. This provides a stable, uniform, and low-interference airflow environment for robot odor recognition, ensuring the accuracy and response efficiency of odor detection.

[0024] like Figure 2 As shown, in another embodiment, the top of the inner walls of the upper shell 11 and the lower shell 12 are respectively provided with two rows of first connecting buckles 111 and second connecting buckles 121, and the outer shell 1 is connected to the robot through the first connecting buckles 111 and the second connecting buckles 121.

[0025] By setting two rows of corresponding matching first connecting buckles 111 and second connecting buckles 121 on the top of the inner walls of the upper shell 11 and the lower shell 12 respectively, the robot arm docking is realized, making the entire odor recognition system a universal module.

[0026] like Figure 3 As shown, in one embodiment, the upper inner walls of the upper shell 11 and the lower shell 12 are respectively provided with a first hemispherical wind wall 112 and a second hemispherical wind wall 122.

[0027] By setting a first hemispherical wind wall 112 and a second hemispherical wind wall 122 on the upper part of the inner wall of the upper shell 11 and the lower shell 12 respectively, the two together form a closed flow guiding cavity, which uniformly turns the airflow discharged from the high-speed motor 2 and reduces airflow loss.

[0028] like Figure 4 As shown, in one embodiment, the inner walls of the upper shell 11 and the lower shell 12 are respectively provided with a plurality of first locking components 113 and second locking components 123; The outer walls of the cylindrical sections of the upper shell insert 21 and the lower shell insert 22 are respectively uniformly provided with a first rectangular boss 211 and a second rectangular boss 221 along the circumferential direction. The upper shell 11 is fixedly connected to the upper shell insert 21 by the engagement of the first locking component 113 with the first rectangular boss 211, and the lower shell 12 is fixedly connected to the lower shell insert 22 by the engagement of the second locking component 123 with the second rectangular boss 221.

[0029] The locking components on the inner walls of the upper shell 11 and the lower shell 12 are adapted to fit into the rectangular bosses on the outer walls of the upper shell insert 21 and the lower shell insert 22, respectively, to achieve precise positioning and assembly limit between the shell and the insert.

[0030] The upper shell insert 21 and the lower shell insert 22 are respectively embedded in the grooves of the first locking component 113 and the second locking component 123 on the inner walls of the upper shell 11 and the lower shell 12 through the first rectangular boss 211 and the second rectangular boss 221 on their outer walls, so as to achieve the insertion positioning and assembly limit.

[0031] like Figure 5 As shown, in one embodiment, the inner walls of the flared sections of the upper shell insert 21 and the lower shell insert 22 are respectively uniformly provided with two first infrared distance detectors 212 and two second infrared distance detectors 222 along the circumferential direction.

[0032] The module air duct achieves target positioning and distance detection through the infrared distance detector at the air inlet end; the high-speed motor 3 generates directional suction, driving the odor airflow to pass through the dust filter 4 and then flow evenly through the VOC odor sensor detection area; the airflow smoothly turns through the guide cavity formed by the hemispherical wind wall, and finally is discharged in an orderly manner through the guide gap between the outer shell 2 and the insert 2, avoiding eddies and residues.

[0033] like Figure 6 As shown, in one embodiment, the inner walls of the flared sections of the upper shell insert 21 and the lower shell insert 22 are each uniformly provided with five first VOC odor sensors 213 and second VOC odor sensors 223 along the circumferential direction. The first VOC odor sensors 213 and the second VOC odor sensors 223 are all located between the dustproof net 4 and the infrared distance detector.

[0034] By circumferentially arranging multiple VOC sensors, accurate, stable, and low-error robot odor detection is achieved.

[0035] like Figure 7 As shown, in one embodiment, the outer walls of the flared sections of the upper shell insert 21 and the lower shell insert 22 are respectively uniformly arranged with a first airflow guiding partition plate 214 and a second airflow guiding partition plate 224 along the circumferential direction.

[0036] The airflow diversion partition allows airflow to be discharged evenly from the air outlet, forming a more airtight and stable air curtain, while also providing support and reinforcement for the internal air duct.

[0037] like Figure 8 As shown, a precise odor recognition module air duct for robots also includes: PCBA control board 5 is assembled in the hollow cavity of the outer shell 1 away from the flared end.

[0038] The PCBA control board 5 acquires, amplifies, and converts analog signals from the multi-channel VOC odor sensor and infrared distance detector in real time, completing odor feature extraction, concentration calculation, and distance determination.

[0039] like Figure 9 As shown, an air duct for a precise odor recognition module for robots also includes: Adapter 6 is disposed at the tail of the hemispherical wind wall of the outer shell 1.

[0040] Adapter 6 is the lead-out port for power and signal lines, which can be connected and assembled with the robot handle.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A precise odor recognition module air duct for robots, characterized in that, include: The outer shell (1) has a flared structure and is formed by splicing an upper shell (11) and a lower shell (12) to form a first chamber; the insert (2) is disposed in the first chamber and its shape is adapted to the outer shell (1), and is formed by the upper shell insert (21) and the lower shell insert (22). The components (22) are spliced ​​together to form a second chamber; the upper shell insert (21) is fitted into the inner wall of the upper shell (11) and the lower shell insert (22) is fitted into the inner wall of the lower shell (12). The airflow enters the second chamber through the flared opening of the outer shell (1), then enters the first chamber, and finally exits through the gap between the inner wall of the outer shell (1) and the insert (2). The second chamber is equipped with a high-speed motor (3) and a dustproof net (4). The air enters through the flared opening of the outer shell (1), and after the dustproof net (4) isolates impurities, it flows into the second chamber. Under the drive of the high-speed motor (3), the gas is introduced into the first chamber and finally discharged through the gap between the inner wall of the outer shell (1) and the insert (2).

2. The air duct for a precise odor recognition module for robots according to claim 1, characterized in that, The top of the inner walls of the upper shell (11) and the lower shell (12) are respectively provided with two rows of first connecting buckles (111) and second connecting buckles (121), and the outer shell (1) is connected to the robot through the first connecting buckles (111) and the second connecting buckles (121).

3. The air duct for a precise odor recognition module for robots according to claim 1, characterized in that, The upper inner walls of the upper shell (11) and the lower shell (12) are respectively provided with a first hemispherical wind wall (112) and a second hemispherical wind wall (122).

4. The air duct for a precise odor recognition module for robots according to claim 1, characterized in that, The inner walls of the upper shell (11) and the lower shell (12) are respectively provided with a plurality of first locking components (113) and second locking components (123). The outer walls of the cylindrical sections of the upper shell insert (21) and the lower shell insert (22) are respectively provided with a first rectangular boss (211) and a second rectangular boss (221) along the circumferential direction. The upper shell (11) is fixedly connected to the upper shell insert (21) by the engagement of the first locking component (113) and the first rectangular boss (211), and the lower shell (12) is fixedly connected to the lower shell insert (22) by the engagement of the second locking component (123) and the second rectangular boss (221).

5. The air duct for a precise odor recognition module for robots according to claim 1, characterized in that, The inner walls of the flared sections of the upper shell insert (21) and the lower shell insert (22) are respectively uniformly provided with two first infrared distance detectors (212) and two second infrared distance detectors (222) along the circumferential direction.

6. The air duct for a precise odor recognition module for robots according to claim 1, characterized in that, The inner walls of the flared sections of the upper shell insert (21) and the lower shell insert (22) are each provided with five first VOC odor sensors (213) and two VOC odor sensors (223) in a circumferential direction; the first VOC odor sensors (213) and the second VOC odor sensors (223) are both located between the dustproof net (4) and the infrared distance detector.

7. The air duct for a precise odor recognition module for robots according to claim 1, characterized in that, The outer walls of the flared sections of the upper shell insert (21) and the lower shell insert (22) are respectively uniformly arranged with a first airflow guiding partition plate (214) and a second airflow guiding partition plate (224) along the circumferential direction.

8. The air duct for a precise odor recognition module for robots according to claim 1, characterized in that, Also includes: PCBA control board (5), the PCBA control board (5) is assembled in the hollow cavity of the outer shell (1) away from the flared end.

9. The air duct for a precise odor recognition module for robots according to claim 1, characterized in that, Also includes: The adapter (6) is disposed at the tail of the hemispherical wind wall of the outer shell (1).

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