Pickup structure of robot
By combining antisonic wave emitters, sound-absorbing cotton, dustproof nets and other technologies in the robot sound pickup structure, the noise filtering and dust protection problems in noisy environments are solved, the sound source positioning and voice signal-to-noise ratio are improved, and the robot's sound tolerance is enhanced The recognition stability and neatness improve the use effect of the robot in noisy environments.
Patent Information
- Application Number
- CN202323669987.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-31
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2033-12-31
AI Technical Summary
The existing robot sound pickup structure is difficult to effectively filter noise in noisy environments, affecting the reception and feedback of human language instructions, and reducing the effectiveness of robot use.
The sound pickup structure design is designed including protective plates, sound-absorbing cotton, anti-sonic transmitters, dustproof nets, clamping blocks, fixing bolts, sealing gaskets and limit blocks. The noise is cancelled through the anti-sonic transmitter, and the sound-absorbing cotton absorbs noise and prevents noise. The dust net prevents dust from entering, the clamping block improves the assembly of the microphone, the fixing bolts achieve stable installation and disassembly of the microphone, the sealing gasket improves the sealing of the chest cavity, and the limit block fixes the protective plate to stably identify sound.
It improves the efficiency of the microphone to receive sound, enhances the sound source positioning and voice signal-to-noise ratio, prevents dust from affecting it, improves the stability and neatness of the robot's sound recognition, and enhances the robot's use effect in noisy environments.
Smart Images
Figure CN222215915U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of robot sound pickup, in particular to a robot sound pickup structure. Background Art
[0002] A common robot sound pickup structure is a microphone array, which consists of multiple miniature microphones installed on the robot body in a specific layout. The working principle is to achieve sound source localization and speech enhancement by processing the sound received by each microphone in the microphone array in time and space.
[0003] According to the Chinese patent publication number: CN208231833U, a microphone pickup module mounting structure and a robot, the microphone pickup module mounting structure includes a silicone mounting block, and the silicone mounting block is provided with a stepped hole for mounting a microphone.
[0004] In the above scheme, the silicone mounting block can effectively improve the shock-absorbing effect of the microphone pickup module mounting structure, ensuring the pickup effect of the microphone. However, it still has the following disadvantages: when the robot is operating, the environment is noisy and there are many sounds, which can easily affect the microphone's reception and feedback of human language commands. Only adding a silicone mounting block cannot filter the sound received by the pickup structure well, thereby reducing the use effect of the robot. Utility Model Content
[0005] The utility model aims to provide a sound pickup structure of a robot to solve the problem that only adding a silicone mounting block cannot well filter the sound received by the sound pickup structure, thereby reducing the use effect of the robot.
[0006] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical scheme: a sound pickup structure of a robot, including a protective plate, two installation grooves are opened on the rear side of the protective plate, sound-absorbing cotton is fixed on the inner wall of the installation groove, a receiving groove is opened on the front side of the protective plate, a connecting groove is opened on the inner rear side of the receiving groove, an anti-sound wave transmitter is snap-connected to the inner wall of the connecting groove, a connecting hole is opened on the rear side of the protective plate, a mounting plate is snap-connected to the inner wall of the receiving groove, a plurality of fixing grooves are opened on the front side of the mounting plate, a sound pickup hole is opened on the rear side of the inner wall of the fixing groove, a microphone is set on the inner wall of the fixing groove, and a plurality of through holes are opened on the rear side of the protective plate, and the through holes correspond to the sound pickup holes.
[0007] Preferably, a first dustproof net is fixed to the inner wall of the connecting hole, and a second dustproof net is fixed to the inner wall of the through hole.
[0008] Preferably, a snap-in block is fixed on one side of the microphone, a snap-in slot is provided on one side of the fixing slot, the snap-in slot is snap-connected with the snap-in block, a sliding hole is provided on the other side of the fixing slot, two fixing columns are slidably inserted into the inner wall of the sliding hole, both ends of the two fixing columns close to each other are provided with inclined surfaces, a spring is wound around the outer wall of the fixing column, one end of the spring is fixed to the inner wall of the sliding hole, and the other end of the spring is fixed to the outer wall of the fixing column.
[0009] Preferably, two thread grooves are provided on the front side of the mounting plate, the thread grooves are connected to the sliding holes, the internal threads of the thread grooves are connected to fixing bolts, and the threaded ends of the fixing bolts are in contact with the inclined surface.
[0010] Preferably, a sealing gasket is fixed to the front side of the protective plate.
[0011] Preferably, two connecting blocks are fixed to the bottom surface of the protective plate, a limiting block is fixed to the top surface of the protective plate, a threaded hole is opened on the rear side of the limiting block, and the internal thread of the threaded hole is connected to a limiting bolt.
[0012] Compared with the prior art, a robot sound pickup structure adopting the above technical solution has the following advantages:
[0013] Beneficial effects:
[0014] 1. When the microphone receives sound, the anti-sound wave transmitter can emit anti-sound waves to the environment, so that the emitted anti-sound waves can be offset and filtered by the noise in the environment, thereby increasing the efficiency of the microphone receiving sound and determining the direction and distance of the sound source. At the same time, the sound-absorbing cotton can absorb the noise around the protective plate, thereby improving the signal-to-noise ratio of the sound source and achieving voice enhancement and noise suppression;
[0015] Second, the cooperation between the first dustproof net and the second dustproof net can prevent dust from entering the robot's chest cavity, thereby not affecting the sound pickup structure's reception of sound, thereby ensuring the normal operation of the sound pickup structure and improving the cleanliness of the robot's chest cavity. The microphone can be clamped by the clamping block so that the microphone can be clamped to the inner wall of the fixing groove, thereby improving the assembly of the microphone;
[0016] 3. The fixing column can be limited by the fixing bolt. When the staff tightens the fixing bolt, the threaded surface of the fixing bolt will contact the inclined surface of the fixing column. At this time, the fixing bolt will generate a thrust on the fixing column, so that one end of the fixing column passes through the sliding hole and presses against one side of the microphone, thereby fixing the microphone on the inner wall of the fixing groove to complete the installation of the microphone; conversely, the staff can loosen the fixing bolt, and the fixing column will cancel the pressing force on one side of the microphone. At this time, the fixing column will retract into the sliding hole under the action of the spring, thereby completing the disassembly of the microphone.
[0017] Fourth, the sealing pad can improve the sealing of the robot's chest cavity, preventing the sound from entering the chest cavity from the connection of the protective plate, affecting the sound pickup structure to receive the sound, thereby ensuring the sound pickup effect of the sound pickup structure. The connecting block can cooperate with the limit block to clamp the protective plate on the robot's chest cavity, so that the protective plate can be fixed in position under the action of the limit bolt, so that the sound pickup structure can stably identify the sound, thereby improving the stability of the sound pickup structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a perspective view of an embodiment.
[0019] Figure 2 It is an exploded perspective view of an embodiment.
[0020] Figure 3 It is a rear perspective view of the mounting plate of the embodiment.
[0021] Figure 4 For example Figure 2 Enlarged view of point A in the middle.
[0022] In the figure: 1. protective plate; 2. mounting groove; 3. sound-absorbing cotton; 4. connecting groove; 5. connecting hole; 6. first dust-proof net; 7. anti-sound wave transmitter; 8. mounting plate; 9. fixing groove; 10. sound pickup hole; 11. microphone; 12. through hole; 13. second dust-proof net; 14. snap-in block; 15. snap-in groove; 16. sliding hole; 17. fixing column; 18. spring; 19. threaded groove; 20. fixing bolt; 21. sealing gasket; 22. connecting block; 23. limit block; 24. threaded hole; 25. limit bolt; 26. receiving groove. DETAILED DESCRIPTION
[0023] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.
[0024] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a sound pickup structure of a robot includes a protective plate 1, wherein two mounting grooves 2 are provided on the rear side of the protective plate 1, and sound-absorbing cotton 3 is fixed to the inner wall of the mounting groove 2. A receiving groove 26 is provided on the front side of the protective plate 1, and a connecting groove 4 is provided on the inner rear side of the receiving groove 26. An anti-sound wave transmitter 7 is provided on the inner wall of the connecting groove 4, and the model of the anti-sound wave transmitter 7 is UT-40. A connecting hole 5 is provided on the rear side of the protective plate 1, and a mounting plate 8 is provided on the inner wall of the receiving groove 26. A plurality of fixing grooves 9 are provided on the front side of the mounting plate 8, and a sound pickup hole 10 is provided on the inner wall of the fixing groove 9. A microphone 11 is provided on the inner wall of the fixing groove 9, and a plurality of through holes 12 are provided on the rear side of the protective plate 1, and the through holes 12 correspond to the sound pickup holes 10.
[0025] During use, when the microphone 11 receives sound, the anti-sound wave transmitter 7 can emit anti-sound waves to the environment, so that the emitted anti-sound waves can offset and filter the noise in the environment, thereby increasing the efficiency of the microphone 11 in receiving sound, and then determining the direction and distance of the sound source. At the same time, the sound-absorbing cotton 3 can absorb the noise around the protective plate 1, thereby improving the signal-to-noise ratio of the sound source and achieving voice enhancement and noise suppression.
[0026] like Figure 1 , Figure 2 and Figure 4 As shown, a first dustproof net 6 is fixed to the inner wall of the connecting hole 5 , and a second dustproof net 13 is fixed to the inner wall of the through hole 12 .
[0027] During use, the cooperation between the first dustproof net 6 and the second dustproof net 13 can prevent dust from entering the robot's chest cavity, thereby not affecting the sound pickup structure's reception of sound, thereby ensuring the normal operation of the sound pickup structure and, at the same time, improving the cleanliness of the robot's chest cavity.
[0028] like Figure 2 and Figure 3 As shown, a clamping block 14 is fixed to one side of the microphone 11, a clamping groove 15 is provided on one side of the fixing groove 9, and the clamping groove 15 is clamped with the clamping block 14. A sliding hole 16 is provided on the other side of the fixing groove 9, and two fixing columns 17 are slidably inserted into the inner wall of the sliding hole 16. Both ends of the two fixing columns 17 close to each other are provided with inclined surfaces, and a spring 18 is wound around the outer wall of the fixing column 17, one end of the spring 18 is fixed to the inner wall of the sliding hole 16, and the other end of the spring 18 is fixed to the outer wall of the fixing column 17. Two threaded grooves 19 are provided on the front side of the mounting plate 8, and the threaded groove 19 is connected to the sliding hole 16. The internal thread of the threaded groove 19 is connected with a fixing bolt 20, and the threaded end of the fixing bolt 20 is in contact with the inclined surface.
[0029] During use, the microphone 11 can be clamped by the clamping block 14, so that the microphone 11 can be clamped on the inner wall of the fixing groove 9, thereby improving the assembly of the microphone 11. The fixing bolt 20 can limit the fixing column 17. When the staff tightens the fixing bolt 20, the threaded surface of the fixing bolt 20 will contact the inclined surface of the fixing column 17. At this time, the fixing bolt 20 will generate a thrust on the fixing column 17, so that one end of the fixing column 17 passes through the sliding hole 16 and presses against one side of the microphone 11, thereby fixing the microphone 11 on the inner wall of the fixing groove 9, completing the installation of the microphone 11; conversely, the staff can loosen the fixing bolt 20, and the fixing column 17 will cancel the pressing force on one side of the microphone 11. At this time, the fixing column 17 will retract into the sliding hole 16 under the action of the spring 18, thereby completing the removal of the microphone 11.
[0030] like Figure 1 , Figure 2 and Figure 4 As shown, a sealing gasket 21 is fixed to the front side of the protective plate 1. Two connecting blocks 22 are fixed to the bottom surface of the protective plate 1, and a limiting block 23 is fixed to the top surface of the protective plate 1. A threaded hole 24 is opened on the rear side of the limiting block 23, and a limiting bolt 25 is connected to the inner thread of the threaded hole 24.
[0031] During use, the sealing pad 21 can improve the sealing of the robot's chest cavity, preventing sound from entering the chest cavity from the connection of the protective plate 1 and affecting the sound pickup structure's reception of sound, thereby ensuring the sound pickup effect of the sound pickup structure. The connecting block 22 can cooperate with the limiting block 23 to clamp the protective plate 1 on the robot's chest cavity, so that the protective plate 1 can be limited and fixed under the action of the limiting bolt 25, so that the sound pickup structure can stably identify the sound, thereby improving the stability of the sound pickup structure.
[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A sound pickup structure of a robot, comprising a protective plate (1), characterized in that: The protective plate (1) is provided with two mounting grooves (2) on the rear side, and a sound-absorbing cotton (3) is fixed on the inner wall of the mounting groove (2). The protective plate (1) is provided with a receiving groove (26) on the front side, and a connecting groove (4) is provided on the inner rear side of the receiving groove (26). An anti-sound wave transmitter (7) is provided on the inner wall of the connecting groove (4). The protective plate (1) is provided with a connecting hole (5) on the rear side, and a mounting plate (8) is provided on the inner wall of the receiving groove (26). The mounting plate (8) is provided with a plurality of fixing grooves (9) on the front side, and a sound pickup hole (10) is provided on the inner rear side of the fixing groove (9). A microphone (11) is provided on the inner wall of the fixing groove (9). The protective plate (1) is provided with a plurality of through holes (12) on the rear side, and the through holes (12) correspond to the sound pickup holes (10).
2. The sound pickup structure of a robot according to claim 1, characterized in that: A first dustproof net (6) is fixed to the inner wall of the connecting hole (5), and a second dustproof net (13) is fixed to the inner wall of the through hole (12).
3. The sound pickup structure of a robot according to claim 2, characterized in that: A snap-in block (14) is fixed on one side of the microphone (11), a snap-in groove (15) is provided on one side of the fixing groove (9), the snap-in groove (15) is snap-connected with the snap-in block (14), a sliding hole (16) is provided on the other side of the fixing groove (9), two fixing columns (17) are slidably inserted into the inner wall of the sliding hole (16), both ends of the two fixing columns (17) close to each other are provided with inclined surfaces, a spring (18) is wound around the outer wall of the fixing column (17), one end of the spring (18) is fixed to the inner wall of the sliding hole (16), and the other end of the spring (18) is fixed to the outer wall of the fixing column (17).
4. The sound pickup structure of a robot according to claim 3, characterized in that: Two thread grooves (19) are provided on the front side of the mounting plate (8), the thread grooves (19) are connected to the sliding hole (16), the internal threads of the thread grooves (19) are connected to fixing bolts (20), and the threaded ends of the fixing bolts (20) are in contact with the inclined surface.
5. The sound pickup structure of a robot according to claim 4, characterized in that: A sealing gasket (21) is fixed to the front side of the protective plate (1).
6. The sound pickup structure of a robot according to claim 5, characterized in that: Two connecting blocks (22) are fixed on the bottom surface of the protective plate (1), and a limiting block (23) is fixed on the top surface of the protective plate (1). A threaded hole (24) is provided on the rear side of the limiting block (23), and the internal thread of the threaded hole (24) is connected to a limiting bolt (25).