Intelligent device of voice interaction system capable of suppressing resonance and suppression method

Abstract

The application is suitable for the technical field of intelligent terminal. The application discloses an intelligent device of a voice interaction system capable of inhibiting resonance and an inhibiting method. The intelligent device comprises a shell and a control circuit for controlling a sound generating mechanism. The sound generating mechanism comprises a sound generating component arranged on a fixing frame. The intelligent device is further provided with a passive resonance inhibiting mechanism and an active resonance inhibiting module. The passive resonance inhibiting mechanism comprises a first damping connection assembly arranged between a first fixing plate and the fixing frame and a second damping connection assembly arranged between the fixing frame and a lower cover. The active resonance inhibiting module comprises a vibration generator arranged on the fixing frame and a vibration sensor for collecting actual vibration data of the fixing frame during work. The control circuit controls the vibration generator to apply active vibration to the fixing frame in the opposite direction of the actual vibration direction according to the data collected by the vibration sensor. Part of the vibration is absorbed by the passive resonance inhibiting mechanism, and the active resonance inhibiting module is cooperated to inhibit resonance and reduce noise.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent terminal, in particular to an intelligent device of a voice interaction system capable of inhibiting resonance and an inhibiting method. BACKGROUND

[0002] With the acceleration of people's work and life pace and the increase of work and life pressure, people usually relieve pressure through appropriate ways after work, and playing music to relax pressure and mood becomes a healthy choice. The existing small devices with music playing function, such as smart speakers, are prone to have the vibration generated by the sound generating unit transmitted to the shell or other components without rigid connection when working, resulting in vibration and resonance, which may cause noise and affect the use experience. SUMMARY

[0003] The present application mainly solves the technical problem of providing an intelligent device of a voice interaction system capable of inhibiting resonance and an inhibiting method, wherein the intelligent device of the voice interaction system can reduce device output sound noise and improve the quality of output sound.

[0004] In order to solve the above technical problem, the present application provides an intelligent device of a voice interaction system capable of inhibiting resonance, which comprises a shell provided with a first fixing plate and a lower cover, the shell is provided with a control circuit for controlling a sound generating mechanism, the sound generating mechanism comprises a fixing frame and a sound generating component arranged on the fixing frame and connected with the control circuit, the intelligent device is further provided with a passive resonance suppression mechanism and an active resonance suppression module, the passive resonance suppression mechanism comprises a first damping connection assembly arranged between the first fixing plate and the fixing frame and a second damping connection assembly arranged between the fixing frame and the lower cover; the active resonance suppression module comprises a vibration generator and a vibration sensor for collecting actual vibration data during work, the control circuit controls the active vibration of the vibration generator in the opposite direction of the actual vibration according to the data collected by the vibration sensor, and the active resonance suppression module performs resonance suppression after the passive resonance suppression mechanism.

[0005] As a preferred embodiment, the active resonance suppression module compares the actual vibration data with the vibration frequency threshold and the amplitude threshold determined by the historical vibration data, when the actual amplitude in the actual vibration data is greater than the amplitude threshold, the vibration generator is controlled to actively vibrate in the opposite direction of the actual vibration, when the actual amplitude is greater than the amplitude threshold and exceeds 20%, the active vibration is output at 75-85% of the actual amplitude, when the actual amplitude is greater than the amplitude threshold and does not exceed 20%, the active vibration is output at 55-65% of the actual amplitude; when the actual vibration frequency in the actual vibration data is the same as the vibration frequency threshold determined according to the frequency causing resonance, the vibration generator is controlled to output active vibration at an integer multiple of the actual vibration frequency.

[0006] As a preferred embodiment, the frequency of the vibration generated by the control vibration generator is 1-2 times the actual vibration frequency.

[0007] As a preferred embodiment, the first damping connection assembly comprises a plurality of first fixed columns arranged on the first fixed plate and a first elastic column matched with each first fixed column, each first elastic column is arranged in a first fixed hole of the fixed frame, each first elastic column is provided with a first positioning hole, and a damping cavity is formed between the side wall of the first fixed column and the hole wall of the first positioning hole when the first fixed column extends into the first positioning hole.

[0008] As a preferred embodiment, the hole wall of the first positioning hole is provided with two arc surfaces, the first fixed column is in contact with the two arc surfaces when arranged in the first positioning hole, and the first positioning hole is divided into two damping cavities, and the distance between the two arc surfaces gradually decreases from the middle to the direction of the intersection of the two arc surfaces.

[0009] As a preferred embodiment, the first positioning hole is columnar, the inner wall of the first positioning hole is provided with a plurality of protrusions, each protrusion is in contact with the side surface of the first fixed column, and adjacent protrusions and the side surface of the first fixed column form a damping cavity.

[0010] As a preferred embodiment, the two arc surfaces on the cross section of the first positioning hole in the vertical direction of the depth are greater in the X-axis direction than in the Y-axis direction, or the first positioning hole is greater in the Y-axis direction than in the X-axis direction.

[0011] As a preferred embodiment, the second damping connection assembly comprises a plurality of second fixed columns arranged on the lower cover and a second elastic column matched with each second fixed column, the second elastic column is arranged in a second fixed hole of the fixed frame, the second fixed column comprises a support portion and a limiting rod arranged on the support portion, the second elastic column is provided with a second positioning hole for accommodating the limiting rod, and a plurality of partition strips are arranged on the outer side of the limiting rod when the limiting rod is matched with the second positioning hole, and each partition strip and the hole wall of the second positioning hole form a damping gap.

[0012] As a preferred embodiment, the diameter of the support portion is greater than that of the limiting rod.

[0013] As a preferred embodiment, the passive resonance suppression mechanism further comprises a damping block fixed with the lower cover, the side surface of the damping block is provided with a plurality of avoidance structures for the second fixed column to pass through, and an isolation gap is arranged between the upper end surface of the damping block and the lower end surface of the fixed frame.

[0014] As a preferred embodiment, the avoidance structure comprises an avoidance slot or an avoidance hole.

[0015] As a preferred embodiment, the shell is further provided with a support mechanism and a rotating mechanism for driving the support mechanism to rotate, the support mechanism comprises a support body and a connecting part connected to the support body, the rotating mechanism is arranged in a mounting cavity formed by the first fixed plate and the second fixed plate, the rotating mechanism comprises a motor fixed to the first fixed plate, a rotating shaft of the motor extends into the mounting cavity through a through hole in the first fixed plate, the rotating shaft of the motor is provided with a driving gear at one end in the mounting cavity, the driving gear is in meshing transmission connection with a driven gear, the second fixed plate is provided with a fixed cavity connected to the mounting cavity, the fixed cavity is provided with a through hole, the connecting part is provided with a support rotating shaft penetrating through the through hole, the support rotating shaft is connected to the driven gear and a bearing fixed to the fixed cavity respectively.

[0016] As a preferred embodiment, the first fixed plate is provided with a plurality of support columns, and the second fixed plate is fixed to each support column and forms the mounting cavity with the first fixed plate.

[0017] As a preferred embodiment, the support mechanism is provided with a charging control circuit and a wireless charging coil electrically connected to the charging control circuit.

[0018] As a preferred embodiment, the support body is provided with a fixed part forming an acute angle with a horizontal plane and a limiting block protruding from a surface of the fixed part, and the wireless charging coil is arranged on a planar fixed surface of the fixed part.

[0019] As a preferred embodiment, the smart device further comprises a sound receiving component connected to the control circuit, and the sound receiving component comprises a microphone or an array microphone.

[0020] As a preferred embodiment, the sound generating component comprises a loudspeaker.

[0021] The present application also provides a resonance suppression method for a smart device of a voice interaction system, which realizes resonance suppression and reduces vibration transmission and noise generation.

[0022] The resonance suppression method for the voice interaction smart device comprises:

[0023] The active resonance suppression module collects actual vibration data of the voice interaction smart device during operation;

[0024] The historical actual vibration data is calculated and counted, the vibration threshold affecting the sound quality is determined according to the historical actual vibration data;

[0025] The actual vibration data is processed, and the active vibration is output according to the processing result, the real-time collected actual vibration data is compared with the vibration threshold, and when the actual amplitude in the actual vibration data is greater than the amplitude threshold in the vibration threshold, the vibration generator is controlled to actively vibrate in the opposite direction of the actual vibration.

[0026] As a preferred embodiment, the amplitude of the active vibration is lower than the actual amplitude.

[0027] As a preferred embodiment, when the actual amplitude is greater than the amplitude threshold and exceeds 20%, the active vibration is output at 75-85% of the actual amplitude; when the actual amplitude is greater than the amplitude threshold and does not exceed 20%, the active vibration is output at 55-65% of the actual amplitude.

[0028] As a preferred embodiment, when the actual vibration frequency in the actual vibration data and the vibration frequency threshold in the vibration threshold are simultaneously, the vibration generator is controlled to output the active vibration at an integer multiple of the actual vibration frequency, and the vibration frequency threshold is determined according to the frequency causing the resonance of the voice interactive intelligent device.

[0029] As a preferred embodiment, the frequency of the active vibration controlled by the vibration generator is 1-2 times the actual vibration frequency.

[0030] As a preferred embodiment, the resonance suppression method further comprises performing passive resonance suppression on the voice interactive intelligent device before collecting the actual vibration data of the voice interactive intelligent device during operation.

[0031] The application discloses a voice interactive system intelligent device capable of suppressing resonance and a resonance suppression method. The intelligent device comprises a shell and a control circuit for controlling a sound generating mechanism, the sound generating mechanism comprises a sound generating component arranged on a fixed frame, the intelligent device further comprises a passive resonance suppression mechanism and an active resonance suppression module, the passive resonance suppression mechanism comprises a first damping connection assembly arranged between a first fixed plate and the fixed frame and a second damping connection assembly arranged between the fixed frame and a lower cover, the active resonance suppression module comprises a vibration generator arranged on the fixed frame and a vibration sensor for collecting actual vibration data of the fixed frame during operation, and the control circuit controls the vibration generator to apply active vibration to the fixed frame in a direction opposite to an actual vibration direction according to the data collected by the vibration sensor. The passive resonance suppression mechanism can absorb part of the resonance and reduce the negative influence of the resonance during operation, and the active resonance suppression module can further suppress the resonance and reduce noise by outputting active vibration in a direction opposite to the resonance when the resonance is large. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the description only represent some of the embodiments of the present application, and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0033] Figure 1Principle diagram of the first embodiment of the active resonance suppression module of the intelligent device.

[0034] Figure 2 Suppression waveform after the active vibration control waveform is taken at 0.6 times the actual amplitude.

[0035] Figure 3 Suppression waveform after the active vibration control waveform is taken at 0.8 times the actual amplitude.

[0036] Figure 4 Principle diagram of the second embodiment of the active resonance suppression module of the intelligent device.

[0037] Figure 5 Mechanical structure diagram of the embodiment of the intelligent device.

[0038] Figure 6 Structure exploded diagram of the embodiment of the intelligent device.

[0039] Figure 7 Another perspective diagram of the structure exploded diagram of the embodiment of the intelligent device.

[0040] Figure 8 Still another perspective diagram of the structure exploded diagram of the embodiment of the intelligent device.

[0041] Figure 9 Fourth perspective diagram of the structure exploded diagram of the embodiment of the intelligent device.

[0042] Figure 10 First perspective diagram of the partial structure exploded diagram of the embodiment of the intelligent device.

[0043] Figure 11 Second perspective diagram of the partial structure exploded diagram of the embodiment of the intelligent device.

[0044] Figure 12 Third perspective diagram of the partial structure exploded diagram of the embodiment of the intelligent device.

[0045] Figure 13 Fourth perspective diagram of the partial structure exploded diagram of the embodiment of the intelligent device.

[0046] Figure 14 Housing structure diagram of the embodiment of the intelligent device.

[0047] Figure 15 Another perspective diagram of the housing structure diagram of the embodiment of the intelligent device.

[0048] Figure 16 Structure diagram of the first elastic column along the length direction in the embodiment.

[0049] Figure 17 Structure diagram of the first elastic column along the length direction in another embodiment.

[0050] Figure 18 Figure 1 is a schematic diagram of the resonance suppression method for intelligent devices.

[0051] Reference signs:

[0052] 1. shell; 10. shell body; 100. cavity; 101. mounting groove; 102. mounting hole; 103. fixing strip; 1031. assembly groove; 110. upper air outlet; 11. upper cover; 12. lower cover; 120. protruding platform; 121. second fixing column; 122. step; 123. lower air outlet; 1211. support part; 1212. limiting rod; 13. first fixing plate; 131. support column; 132. through hole; 133. first fixing column; 14. second fixing plate; 141. rotating shaft hole; 142. fixing cavity; 2. support mechanism; 20. support body; 21. connecting part; 200. fixing part; 201. limiting block; 3. sound generating mechanism; 31. fixing frame; 311. first fixing hole; 34. first elastic column; 341. first limiting part; 342. first fixing part; 343. first positioning hole; 344. protrusion; 345. damping cavity; 346. arc surface; 35. second elastic column; 351. second positioning hole; 352. second limiting part; 4. rotating mechanism; 40. motor; 41. bearing; 42. support rotating shaft; 43. driven gear; 44. driving gear; 5. damping block; 51. clearance groove / hole; 52. assembly hole; 6. control circuit assembly; 60. control panel; 61. control circuit board; 62. heat dissipation part; 7. damping sheet.

[0053] The purposes, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0054] The claims of the present application will be further described in detail below with reference to specific embodiments and the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0055] It should be understood that the directional terms used in the embodiments of the present application, such as "upper", "lower", "left", "right", "front", "back", etc., represent the orientation or positional relationship based on the direction and position relationship shown in the drawings, or the direction and position relationship when the product of the present application is used, and are only for the convenience of simplifying the description of the present application, and do not indicate or imply that the devices, elements or components must have a specific direction and position, a specific direction and position configuration, and should not be understood as a limitation on the present application. It is only used to explain the relative positional relationship, motion condition, etc. between the components shown in the drawings, and when the specific attitude changes, the directional indication may also change accordingly.

[0056] In addition, the ordinal numbers in the present application, such as "first", "second", etc., are only for distinguishing purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. The "first", "second" features thus defined can be explicitly or implicitly and at least one of the technical features. In the description of the present application, the meaning of "a plurality of" is at least two, that is, two or more, unless otherwise explicitly limited; the meaning of "at least one" is one or more.

[0057] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "setting", "connecting", "fixing", "screwed", etc. should be understood broadly, for example, the positional relationship between the components can be relatively fixed, or there can be a physically fixed connection between the components, which can be detachable or integrated structure; it can be mechanical connection or electrical signal connection; it can be directly connected or indirectly connected through intermediate media or components; it can be the internal communication of two elements or the interaction relationship between two elements, unless the specification explicitly limits it, and it cannot be understood as other understanding that can achieve the corresponding function or effect. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0058] The controller and control circuit involved in the present application are the conventional control technology or units of those skilled in the art, for example, the control circuit of the controller can be realized by ordinary skilled in the art using existing technology, such as simple programming. The software or program involved in the control result realized by cooperating with hardware, such as the software or program control process not described in detail in the specification, belongs to the use of existing technology or the conventional technology of ordinary skilled in the art. The power supply also uses the existing technology in the art, and the main technical point of the present application is the improvement of the mechanical device, so the specific circuit control relationship and circuit connection of the present application are not described in detail.

[0059] The present disclosure provides many different embodiments or examples for implementing different structures of the present application. For simplicity of the present disclosure, the elements and settings of the various examples of the present application are described in a particular, concrete manner. Of course, they are merely examples and are presented to illustrate the present application and not to limit the present application. Furthermore, the present application can refer to a number of elements in different examples by the same reference designations, which can facilitate simplicity and clarity with respect to the present application. Moreover, specific processes and materials are provided by way of example only, as those skilled in the art will recognize that other processes and materials can be used.

[0060] The preferred embodiments of the present application will be described herein below with reference to the drawings, in which it should be understood that the preferred embodiments described herein are merely for illustration and explanation of the present application and are not intended to limit the present application. The present application can be applied to other embodiments and / or settings.

[0061] As shown in Figures 1-17 , the present application provides an intelligent device embodiment of a voice interaction system capable of suppressing resonance.

[0062] The intelligent device of the voice interaction system capable of suppressing resonance comprises a shell 1 provided with a first fixed plate 13 and a lower cover 12, the shell 1 is provided with a control circuit assembly 6 for controlling a sound generating mechanism 3, the sound generating mechanism 3 comprises a sound generating component connected between a fixed frame 31 and the control circuit assembly 6, the intelligent device is further provided with a passive resonance suppression mechanism and an active resonance suppression module, wherein the passive resonance suppression mechanism comprises a first damping connection assembly arranged between the first fixed plate 13 and the fixed frame 31 and a second damping connection assembly arranged between the fixed frame 31 and the lower cover 12; the active resonance suppression module comprises a vibration generator A1 arranged on the fixed frame 31 and a vibration sensor A2 for collecting actual vibration data during work, a control circuit A in the control circuit assembly 6 is electrically connected with the vibration generator A1 and the vibration sensor A2, the control circuit A controls the vibration generator A1 to generate active vibration in the opposite direction of the actual vibration according to the actual vibration data collected by the vibration sensor A2.

[0063] The vibration generator A1 can be a device controlled by the control circuit A to generate active vibration, the vibration generator A1 comprises an ultrasonic vibrator and other devices in the prior art. The vibration data collected by the vibration sensor A2 comprises vibration frequency and vibration amplitude, the actual vibration data and the active vibration data both comprise vibration amplitude and vibration frequency, the vibration amplitude or vibration amplitude is also called amplitude.

[0064] Specifically, the active resonance suppression module generates active vibration when the intelligent device is working, the working refers to that the intelligent device can output sound. As shown in Figure 1As shown, the vibration sensor A2 collects the vibration data generated by the sound generating mechanism 3 in real time under the control of the control circuit A, and the vibration data includes the actual amplitude and actual vibration frequency of the fixed frame 31. When the actual amplitude of the fixed frame 31 is greater than the amplitude threshold value in the preset vibration threshold value, the control circuit A controls the vibration generator A1 to work. The vibration generator A1 actively vibrates to generate a vibration opposite to the actual vibration direction of the fixed frame 31. When the vibration frequency of the vibration generator A1 is the same as or close to the vibration frequency of the fixed frame 31, the vibration generator A1 actively vibrates the fixed frame 31. The amplitude of the active vibration can be about 55%-85% of the actual amplitude. When the actual vibration frequency in the actual vibration data is the same as the vibration frequency threshold value determined according to the frequency causing resonance, the control circuit A controls the vibration generator A1 to output the active vibration at an integer multiple of the actual vibration frequency, such as 1-2 times. At this time, the amplitude of the active vibration can be 75% of the actual amplitude, and the active vibration direction is opposite to the actual vibration direction. The active vibration and the actual vibration are used to generate offset or reduction, weaken the amplitude of the fixed frame 31 during work, suppress resonance of the equipment or the fixed frame 31, and effectively reduce noise.

[0065] The vibration threshold value includes a vibration frequency threshold value and an amplitude threshold value. The vibration frequency threshold value is a frequency that can cause resonance and affect the output quality according to the historical actual vibration data of the smart device. The amplitude threshold value is an amplitude that can cause noise and affect the quality according to the historical actual vibration data of the smart device. The direction opposite means that the active vibration and the actual vibration are opposite at the same time in the vibration waveform. In the waveform, the active vibration peak is the same as or close to the actual vibration valley, and can generate mutual offset or weaken the actual vibration amplitude. The vibration frequency threshold value and the amplitude threshold value are determined according to the amplitude and frequency that affect the sound quality in the statistical historical vibration data.

[0066] The vibration sensor A2 collects the actual amplitude and actual vibration frequency of the fixed frame 31. When the actual amplitude and actual vibration frequency are both lower than the preset threshold value, it indicates that the vibration generated by the fixed frame 31 can be inhibited by the passive resonance suppression mechanism, or the inhibition effect of the passive resonance suppression mechanism is good. At this time, the vibration of the fixed frame 31 has little effect on the output sound quality, and the vibration generator A1 in the active resonance suppression module does not work. When the actual amplitude is higher than the set threshold value, or the actual vibration frequency is the same as the preset vibration frequency, it indicates that the vibration generated by the fixed frame 31 cannot be completely inhibited by the passive resonance suppression mechanism or the inhibition effect is not good, and resonance effect may be formed. The active resonance suppression module controls the vibration generator A1 to actively vibrate at the collected actual vibration frequency and / or 55-85% of the actual amplitude, which can achieve better resonance suppression effect.

[0067] As Figure 2The actual amplitude is 0.85mm, which is 13.3% higher than the amplitude threshold value and does not exceed 20% of the amplitude threshold value, the vibration generator A1 actively vibrates at a frequency of 800Hz and an amplitude of 60% of the actual amplitude of 0.85mm, that is, an amplitude of 0.51mm, the direction of active vibration is opposite to the direction of actual vibration, and the two are superimposed, after active vibration suppression, the amplitude of the fixed frame 31 is reduced to 0.27mm, which is significantly lower than the actual amplitude of 0.85mm before active suppression, thereby effectively suppressing vibration. Therefore, when the actual amplitude is greater than the amplitude threshold value and does not exceed 20%, the active vibration can be output at 55-65% of the actual amplitude, and a better vibration suppression effect can be obtained.

[0068] When the vibration generator A1 collects and the actual amplitude of the fixed frame 31 collected by the vibration sensor A2 is greater than the set threshold value, it indicates that the vibration generated by the fixed frame 31 cannot be completely suppressed by the passive resonance suppression mechanism or the suppression effect is poor, and the active resonance suppression module controls the vibration generator A1 to actively vibrate at the collected actual frequency and an amplitude of 75-85% of the actual amplitude, in this case, a better resonance suppression effect can be achieved. As shown in Figure 3 The actual amplitude is 0.85mm, which is 13.3% higher than the amplitude threshold value and does not exceed 20% of the amplitude threshold value, the vibration generator A1 actively vibrates at a frequency of 800Hz and an amplitude of 60% of the actual amplitude of 0.85mm, that is, an amplitude of 0.51mm, the direction of active vibration is opposite to the direction of actual vibration, and the two are superimposed, after active vibration suppression, the amplitude of the fixed frame 31 is reduced to 0.27mm, which is significantly lower than the actual amplitude of 0.85mm before active suppression, thereby effectively suppressing vibration. Therefore, when the actual amplitude is greater than the amplitude threshold value and does not exceed 20%, the active vibration can be output at 55-65% of the actual amplitude, and a better vibration suppression effect can be obtained.

[0069] Due to the different proportions of exceeding the amplitude threshold value, different amplitudes are used for active vibration, which can effectively suppress vibration transmission and reduce noise. At the same time, the resonance frequency is actively suppressed, and the resonance is effectively suppressed.

[0070] On the basis of the above embodiment, the intelligent device is further provided with a volume sensor A3 connected with the control circuit board 61, the volume sensor A3 collects the sound volume during work, as shown in Figure 4The vibration frequency and volume are collected by the vibration sensor A2 and the volume sensor A3 respectively. Since there is a positive correlation between the volume and the amplitude, the actual amplitude can be determined by determining the volume, and the volume threshold or the amplitude threshold determined by the volume can be determined according to the historical volume data. When the vibration frequency collected by the vibration sensor A2 is the same as or close to the preset vibration frequency threshold, the actual vibration frequency can cause resonance. The control circuit A controls the vibration generator A1 to output the active vibration at an integer multiple of the actual vibration frequency, such as 1-2 times the actual vibration frequency. The amplitude of the active vibration can be 75% of the actual amplitude. The active vibration is output at the actual vibration frequency, and the direction of the active vibration is opposite to the direction of the actual vibration. The active vibration and the actual vibration are used to generate cancellation or reduction, to weaken the amplitude of the fixed frame 31 during operation, to suppress resonance of the equipment or the fixed frame 31, and to effectively reduce noise.

[0071] When the vibration frequency collected by the vibration sensor A2 cannot cause resonance compared with the vibration frequency threshold, the actual amplitude determined by the volume sensor A3 is compared with the preset amplitude threshold. When the actual amplitude is greater than the amplitude threshold and exceeds 20% of the amplitude threshold, the active vibration is output at 75-85% of the actual amplitude. When the actual amplitude is greater than the amplitude threshold and does not exceed 20% of the amplitude threshold, the active vibration is output at 55-65% of the actual amplitude. When the actual amplitude is less than the amplitude threshold, the active vibration suppression module does not work.

[0072] The shell 1 is a cylindrical shell body 10, which is provided with a cavity 100. The inner wall of the cavity 100 is provided with a fixed strip 103 for fixing the first fixed plate 13 and the lower cover 12. The surface of the shell body 10 is provided with a mounting groove 101, and the mounting groove 101 is provided with a mounting hole 102. The intelligent device control circuit assembly 6 is fixed in the mounting groove 101. The control circuit assembly 6 includes a control panel 60 and a control circuit board 61 electrically connected to the control panel 60. The control circuit board 61 is provided with a control circuit A and a heat dissipation component 62 in contact with the power component in the control circuit A. The heat dissipation component 62 is accommodated in the cavity 100 through the mounting hole 102 on the mounting groove 101. The fixed strip 103 is provided with an assembly groove 1031. The first fixed plate 13 and the lower cover 12 are fixed with the assembly groove 1031 through fixing screws (not shown in the figure), so as to realize the fixation of the first fixed plate 13 and the lower cover 12 with the shell 1.

[0073] The first damping connection assembly includes a plurality of first fixing posts 133 disposed on the first fixing plate 13. The first fixing posts 133 cooperate with the first elastic posts 34 disposed on the upper end surface of the fixing frame 31. The fixing frame 31 is provided with the same number of first fixing holes 311 as the number of first elastic posts 34. Each first fixing hole 311 fixes one first elastic post 34. Each first elastic post 34 is provided with a first positioning hole 343. When the first elastic post 34 cooperates with the first fixing post 133, the end of the first fixing post 133 extends into the first positioning hole 343, and the side wall of the first fixing post 133 can form a vibration damping cavity 345 between itself and the hole wall of the first positioning hole 343. The first elastic column 34 includes a first fixing part 342 disposed in the first fixing hole 311 during installation and a first limiting part 341 connected to the first fixing part 342. The diameter of the first limiting part 341 is larger than that of the first fixing part 342, and the first limiting part 341 is located outside the first fixing hole 311. The first limiting part 341 is provided with a first positioning hole 343. The first limiting part 341 can form a first isolation gap (not shown in the figure) between the first fixing plate 13 and the fixing frame 31. When the first elastic column 34 and the first fixing column 133 are engaged, the first fixing column 133 extends into the first positioning hole 343. The first limiting part 341, which is higher than the surface of the fixing frame 31, forms a first isolation gap between the first fixing plate 13 and the fixing frame 31, which can prevent the vibration from being directly transmitted to the first fixing plate 13 and causing other connected components to vibrate. At the same time, the first limiting part 341 is elastically connected to the first fixing column 133, which can absorb the vibration generated on the fixing frame 31 when the sound generating mechanism 3 is working. The first fixing column 133 and the first fixing plate 13 can be integrally formed from rigid materials or be separate structures. The first elastic column 34 can be made of rubber or similar materials with a certain degree of elastic deformation.

[0074] To improve the vibration absorption effect of the fixing frame 31, the wall of the first positioning hole 343 is provided with two arc surfaces 346. When the first fixing post 133 is located in the first positioning hole 343, it contacts the first positioning hole 343 and the two arc surfaces 346, dividing the first positioning hole 343 into two damping cavities 345. The distance between the arc surfaces of the damping cavities 345 gradually decreases from the middle to the intersection of the two arc surfaces 346. The two damping cavities 345 can be set to be independent of each other as needed. Figure 13 As shown, the two arc surfaces 346 on the cross section of the first positioning hole 343 along its depth perpendicular direction are larger in the X-axis direction than in the Y-axis direction. Alternatively, the first positioning hole 343 can be set to be larger in the Y-axis direction than in the X-axis direction. When the first fixed column 133 moves from the larger direction, the space is reduced, thereby gradually absorbing vibration energy. The larger the gap, the easier it is to absorb vibration. However, the vibration reduction effect of this structure may be affected by the vibration direction.

[0075] The first positioning hole 343 can also be designed as a column, such as...Figure 14 As shown, the inner wall of the first positioning hole 343 is provided with a plurality of protrusions 344, each of which is in contact with the side surface of the first fixing column 133, and adjacent protrusions 344 form a damping cavity 345 with the side surface of the first fixing column 133. Each damping cavity 345 can be independent of each other when not damped. Since the first positioning hole 343 forms damping cavities 345 with the first fixing column 133 in multiple directions through the plurality of protrusions 344, the same damping effect can be achieved in multiple different directions. The protrusions 344 protrude from the inner wall of the first positioning hole 343, and can have a larger deformation space when damping. Even if there is a small vibration, it can be absorbed by the deformation of the protrusions 344, thereby further improving the damping effect.

[0076] The second damping connection assembly includes a plurality of second fixing columns 121 provided on the lower cover 12 and a second elastic column 35 cooperating with each second fixing column 121. The second elastic column 35 is fixed with a second fixing hole (not labeled in the figure) provided on the lower end surface of the fixing frame 31. The number of the second fixing hole is the same as the number of the second elastic column 35 and the second fixing column 121. The structure of the second elastic column 35 is the same as that of the first elastic column 34, that is, each second elastic column 35 includes a second limiting portion 352 provided with a second positioning hole 351 and a second fixing portion (not labeled in the figure) provided on the second fixing hole and connected with the second limiting portion 352. The diameter of the second limiting portion 352 is larger than that of the second fixing portion, and the second limiting portion 352 protrudes from the lower surface of the fixing frame 31. The second fixing column 121 includes a support portion 1211 and a limiting rod 1212 connected with the support portion 1211. The cross section of the support portion 1211 is larger than that of the limiting rod 1212. When the limiting rod 1212 cooperates with the second positioning hole 351, a plurality of partition strips (not shown in the figure) are provided on the outer side of the limiting rod 1212. Each partition strip is in contact with the hole wall of the second positioning hole to form a damping gap (not shown in the figure). In this way, a larger vibration space is provided for the limiting rod 1212. When the second elastic column 35 cooperates with the second fixing column 121, the limiting rod 1212 on the second fixing column 121 extends into the second positioning hole 351 to limit and absorb vibration. The support portion 1211 is in contact with the end surface of the second limiting portion 352 to increase the contact effect, thereby achieving better damping effect and supporting the fixing frame 31. During installation, the second positioning hole 351 on the second elastic column 35 cooperates with the second limiting portion 352 on the second fixing column 121 to support the fixing frame 31. The second limiting portion 352 protrudes from the lower surface of the fixing frame 31 to form a second isolation gap (not shown in the figure) in front of the lower end surface of the fixing frame 31. The second isolation gap and the first isolation gap make the fixing frame 31 as a whole suspended in the cavity 100 of the shell 1, thereby reducing the transmission of the fixing frame 31 to the first fixing plate 13, the lower cover 12 and the shell 1 during operation, and reducing vibration and resonance.

[0077] According to the need, the lower cover 12 is provided with a protruding platform 120, and a step 122 is formed around the edge of the protruding platform 120. A lower air outlet hole 123 is arranged on one surface of the step 122, and the lower air outlet hole 123 is communicated with the cavity 100. The step 122 provides an air outlet channel for the lower air outlet hole 123, so that better air exhaust can be achieved during operation, and the speaker operation can be avoided from being affected.

[0078] On the basis of the above embodiment, another embodiment of the present application is provided. The passive resonance suppression mechanism further comprises a damping block 5 fixed with the lower cover 12. The damping block 5 is made of dense material, and has a large mass, such as cast iron. The damping block 5 is provided with an assembly hole 52 and a plurality of empty structures on the side surface for the second fixing column 121 to pass through. The empty structures comprise empty grooves / holes 51. The second isolation gap is arranged between the upper end surface of the damping block 5 and the lower end surface of the fixing frame 31. The damping block 5 can be fixed on the lower cover 12 by screws through the assembly hole 52. The damping block 5 can increase the equipment mass and reduce the vibration generated during operation. According to the need, a damping sheet 7 is arranged between the damping block 5 and the lower cover 12, so that the vibration transmitted to the lower cover 12 after the damping block 5 loosens during use can be avoided.

[0079] In order to realize the charging of the smart phone by the intelligent device, the intelligent device further comprises a support mechanism 2 arranged on the shell 1 and a rotating mechanism 4 arranged on the support mechanism 2, the support mechanism 2 comprises a support body 20 and a connecting part 21 connected with the support body 20, the support body 20 is provided with a fixed part 200 and a limiting block 201 protruding from the surface of the fixed part 200, and the fixed part 200 forms an acute angle with the horizontal plane. The rotating mechanism 4 is arranged in a mounting cavity (not marked in the figure) formed by the first fixed plate 13 and the second fixed plate 14, and the second fixed plate 14 is further provided with an upper cover 11, the upper cover 11 is provided with an upper air outlet 110, the upper air outlet 110 is communicated with the cavity 100, and when the sound generating mechanism 3 works, the airflow generated by the vibration of the loudspeaker is discharged through the hole. The rotating mechanism 4 comprises a motor 40 fixed with the first fixed plate 13, the rotating shaft of the motor 40 extends into the mounting cavity through the through hole 132 on the first fixed plate 13, and a driving gear 44 is arranged at one end of the rotating shaft in the mounting cavity, the driving gear 44 is in meshing transmission connection with a driven gear 43, the second fixed plate 14 is provided with a fixed cavity 142 communicated with the mounting cavity, the fixed cavity 142 is provided with a rotating shaft hole 141, the connecting part 21 is provided with a support rotating shaft 42, the support rotating shaft 42 penetrates through the rotating shaft hole 141 and is fixed with the bearing 41 and the driven gear 43, and the bearing 41 is fixed on the fixed cavity 142. The mounting cavity is formed by a plurality of support columns 131 arranged on the first fixed plate 13, and when the second fixed plate 14 is fixed with the first fixed plate 13, the space is formed by the plurality of support columns 131 between the second fixed plate 14 and the first fixed plate 13. The rotating mechanism 4 can control the rotating angle of the support mechanism 2 to charge the position, and better adapt to different use scenes.

[0080] The support mechanism 2 is provided with a charging control circuit (not marked in the figure) and a wireless charging coil (not marked in the figure) electrically connected with the charging control circuit, the wireless charging coil is arranged in the plane of the fixed part 200, the charging control circuit controls the wireless charging coil to charge outward, and the necessary protection circuits such as overcurrent and overvoltage are realized by using the existing technology, and the specific control process of the charging control circuit will not be repeated.

[0081] According to the need, in the above embodiment, the sound generating mechanism 3 can comprise a loudspeaker. The intelligent device further comprises a sound receiving component (not marked in the figure) connected with the control circuit board 61, and the sound receiving component comprises a microphone or an array microphone.

[0082] When the smart phone is charged by the intelligent device, the phone can be placed on the fixed part 200, and a stable fixation can be formed through the limiting block 201, when the smart phone has a wireless charging function, and the intelligent device is powered on, the wireless charging coil arranged in the plane of the fixed part 200 can be used to charge the smart phone.

[0083] AsFigure 18 The application also provides an embodiment of a resonance suppression method for a smart device of a resonance voice interaction system.

[0084] The resonance suppression method for the smart device of the voice interaction system comprises:

[0085] In step S11, actual vibration data of the voice interaction smart device during operation is collected, and the amplitude and vibration frequency data of the fixed frame 31 are collected by the vibration sensor in the above embodiment, especially by the active resonance suppression module in the above embodiment.

[0086] In step S12, historical actual vibration data is calculated and counted to obtain the historical actual vibration data, and a vibration threshold affecting the sound quality is determined according to the historical actual vibration data.

[0087] In step S13, the actual vibration data is processed, and active vibration is output according to the processing result. The real-time collected actual vibration data is compared with the vibration threshold, and when the actual amplitude in the actual vibration data is greater than the amplitude threshold in the vibration threshold, the vibration generator is controlled to actively vibrate in the opposite direction of the actual vibration.

[0088] Specifically, the smart device uses the above embodiment, and before collecting the actual vibration data of the voice interaction smart device during operation, the device is first subjected to passive resonance suppression, that is, the vibration suppression is first performed by the passive resonance suppression mechanism, and then the resonance suppression is performed by the active resonance suppression module. When the vibration generator A1 can actively apply vibration to the fixed frame 31 at a frequency that is the same as or close to the vibration frequency of the fixed frame 31, the amplitude of the active vibration can be about 55%-85% of the actual amplitude; when the actual vibration frequency in the actual vibration data is the same as the vibration frequency threshold causing resonance in the actual vibration data, the control circuit A controls the vibration generator A1 to output active vibration at an integer multiple of the actual vibration frequency, such as 1-2 times. At this time, the amplitude of the active vibration can be 75% of the actual amplitude to output active vibration, and the direction of the active vibration is opposite to that of the actual vibration. The active vibration and the actual vibration are used to generate cancellation or reduction, to weaken the amplitude of the fixed frame 31 during operation, to suppress resonance of the device or the fixed frame 31, and to effectively reduce noise.

[0089] In order to better illustrate the suppression of vibration and resonance, the active resonance suppression module in the above embodiment is taken as an example for description.

[0090] The actual amplitude and actual vibration frequency of the fixed frame 31 are collected by the vibration sensor A2. When the actual amplitude and actual vibration frequency are both lower than the preset threshold value, it indicates that the vibration generated by the fixed frame 31 can be inhibited by the passive resonance suppression mechanism, or the inhibition effect of the passive resonance suppression mechanism is better, the actual amplitude of the fixed frame 31 has little effect on the output sound quality, and the active resonance suppression module controls the vibration generator A1 to not work. When the actual amplitude is higher than the set threshold value, or the actual vibration frequency is the same as the preset vibration frequency, it indicates that the vibration generated by the fixed frame 31 cannot be completely inhibited or the inhibition effect is not good by the passive resonance suppression mechanism, and resonance effect may be formed. The active resonance suppression module controls the vibration generator A1 to actively vibrate at the collected actual vibration frequency and / or 55-85% of the actual amplitude, which can achieve better resonance suppression effect.

[0091] As shown in Figure 2 , for illustration of directly collecting the actual amplitude. F represents that the actual vibration frequency is 800Hz medium frequency, the actual amplitude is represented by L(mm), the amplitude threshold value is 0.75mm, the actual amplitude is 0.85mm, which is 13.3% higher than the amplitude threshold value and does not exceed 20% of the amplitude threshold value. The vibration generator A1 actively vibrates at 800Hz frequency and 60% amplitude of the actual amplitude 0.85mm, i.e. 0.51mm amplitude, the active vibration direction is opposite to the actual vibration direction, and the two directions are superimposed. After active vibration suppression, the amplitude of the fixed frame 31 is reduced to 0.27mm, which is significantly lower than the actual amplitude 0.85mm before active suppression, thereby effectively suppressing the vibration. Therefore, when the actual amplitude is greater than the amplitude threshold value and does not exceed 20%, the active vibration can be output at 55-65% of the actual amplitude, which can obtain better vibration suppression effect.

[0092] When the vibration generator A1 collects the amplitude exceeding the amplitude threshold value, and the actual amplitude of the fixed frame 31 collected by the vibration sensor A2 is greater than the set threshold value, it indicates that the vibration generated by the fixed frame 31 cannot be completely inhibited or the inhibition effect is not good by the passive resonance suppression mechanism. The active resonance suppression module controls the vibration generator A1 to actively vibrate at the collected actual frequency and 75-85% of the actual amplitude, which can achieve better resonance suppression effect in this case. As shown in Figure 3As shown, F represents the actual vibration frequency of 800 Hz, the actual amplitude is represented as L (mm), and the amplitude threshold is 1. When the actual amplitude is 1.3 mm, the vibration generator A1 vibrates at a frequency of 800 Hz, and the amplitude is 1.3 times the amplitude threshold, which is 0.3 times higher. At this amplitude, the vibration generator actively vibrates at 80% of the actual amplitude of 1.3 mm, i.e., at an amplitude of 1.04 mm. The active vibration is superimposed on the actual vibration in the opposite direction, and after active vibration suppression, the amplitude of the fixed frame 31 becomes 0.23 mm, which is significantly lower than the amplitude of 1.3 mm before active suppression, thereby effectively suppressing vibration. Thus, when the actual amplitude is greater than the amplitude threshold and exceeds 20% of the amplitude threshold, the active vibration can be output at 75-85% of the actual amplitude, and a better vibration suppression effect can be achieved.

[0093] On the basis of the above embodiment, the smart device is further provided with a volume sensor A3 connected to the control circuit board 61. The volume sensor A3 collects the sound volume during operation, such as Figure 4 As shown, the vibration frequency and volume are collected by the vibration sensor A2 and the volume sensor A3, respectively. Since there is a positive correlation between volume and amplitude, the actual amplitude can be determined by determining the volume, and the volume threshold can be determined based on historical volume data or the amplitude threshold determined based on the volume. When the vibration frequency collected by the vibration sensor A2 is the same as or close to the preset vibration frequency threshold, the actual vibration frequency may cause resonance. The control circuit A controls the vibration generator A1 to output active vibration at an integer multiple of the actual vibration frequency, such as 1-2 times the actual vibration frequency. The amplitude of the active vibration can be 75% of the actual amplitude, and the direction of the active vibration is opposite to that of the actual vibration. By using active vibration and actual vibration to generate cancellation or reduction, the amplitude of the fixed frame 31 during operation is reduced, resonance of the device or the fixed frame 31 is suppressed, and noise is effectively reduced.

[0094] When the vibration frequency collected by the vibration sensor A2 cannot cause resonance compared with the vibration frequency threshold, the actual amplitude determined by the volume sensor A3 is compared with the preset amplitude threshold. When the actual amplitude is greater than the amplitude threshold and exceeds 20% of the amplitude threshold, the active vibration is output at 75-85% of the actual amplitude. When the actual amplitude is greater than the amplitude threshold and does not exceed 20% of the amplitude threshold, the active vibration is output at 55-65% of the actual amplitude. When the actual amplitude is less than the amplitude threshold, the active vibration suppression module does not work.

[0095] Since different amplitudes are used for active vibration when the amplitude exceeds different proportions of the amplitude threshold, vibration transmission can be effectively suppressed and noise can be reduced. At the same time, by actively suppressing the resonance frequency during operation, resonance can be effectively suppressed and noise can be reduced.

[0096] The above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced by equivalent features, and these modifications or replacements do 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 application.

Claims

1. A smart device of a voice interaction system capable of suppressing resonance, comprising a housing provided with a first fixing plate and a lower cover, the housing being provided with a control circuit for controlling a sound generating mechanism, the sound generating mechanism comprising a sound generating component provided on a fixing frame and connected with the control circuit, characterized in that, The intelligent device is also provided with a passive resonance suppression mechanism and an active resonance suppression module. The passive resonance suppression mechanism comprises a first damping connection assembly arranged between the first fixed plate and the fixed frame and a second damping connection assembly arranged between the fixed frame and the lower cover. The active resonance suppression module comprises a vibration generator and a vibration sensor for collecting actual vibration data during work. The control circuit controls the active vibration of the vibration generator in the opposite direction of the actual vibration according to the data collected by the vibration sensor. The active resonance suppression module performs resonance suppression after the passive resonance suppression mechanism performs passive resonance suppression. The first damping connection assembly comprises a plurality of first fixed columns arranged on the first fixed plate and a first elastic column matched with each first fixed column. Each first elastic column is arranged in a first fixed hole on the fixed frame. Each first elastic column is provided with a first positioning hole. When the first fixed column extends into the first positioning hole, the side wall of the first fixed column can form a damping cavity with the hole wall of the first positioning hole.

2. The smart device of the voice interactive system with suppressible resonance according to claim 1, wherein, The active resonance suppression module compares the actual vibration data with the vibration frequency threshold and the amplitude threshold determined by the historical vibration data. When the actual amplitude in the actual vibration data is greater than the amplitude threshold, the vibration generator is controlled to actively vibrate in the opposite direction of the actual vibration. When the actual amplitude is greater than the amplitude threshold and exceeds 20%, the active vibration is output at 75-85% of the actual amplitude. When the actual amplitude is greater than the amplitude threshold and does not exceed 20%, the active vibration is output at 55-65% of the actual amplitude. When the actual vibration frequency in the actual vibration data is the same as the vibration frequency threshold determined according to the frequency causing resonance, the vibration generator is controlled to output active vibration at an integer multiple of the actual vibration frequency.

3. The smart device of the voice interactive system with suppressible resonance of claim 1, wherein, The hole wall of the first positioning hole is provided with two arc surfaces. When the first fixed column is located in the first positioning hole, the first fixed column is in contact with the two arc surfaces, thereby dividing the first positioning hole into two damping cavities. The distance between the two arc surfaces gradually decreases from the middle to the direction of the intersection of the two arc surfaces.

4. The smart device of the voice interactive system with suppressible resonance of claim 1, wherein, The first positioning hole is columnar. The inner wall of the first positioning hole is provided with a plurality of protrusions. Each protrusion is in contact with the side surface of the first fixed column, and adjacent protrusions and the side surface of the first fixed column form a damping cavity.

5. The smart device of the voice interactive system with suppressible resonance of claim 3, wherein, The two arc surfaces on the cross section of the first positioning hole in the vertical direction of the depth are greater in the X-axis direction than in the Y-axis direction, or the first positioning hole is greater in the Y-axis direction than in the X-axis direction.

6. The smart device of the voice interactive system with suppressible resonance of claim 1, wherein, The second damping connection assembly comprises a plurality of second fixed columns arranged on the lower cover and a second elastic column matched with each second fixed column. The second elastic column is arranged in a second fixed hole on the fixed frame. The second fixed column comprises a support portion and a limiting rod arranged on the support portion. The second elastic column is provided with a second positioning hole for accommodating the limiting rod. When the limiting rod is matched with the second positioning hole, a plurality of partition strips are arranged on the outside of the limiting rod. Each partition strip and the hole wall of the second positioning hole form a damping gap.

7. The smart device of the voice interactive system with suppressible resonance according to claim 6, wherein, The passive resonance suppression mechanism further comprises a damping block fixed to the lower cover. The side surface of the damping block is provided with a plurality of avoidance structures for the second fixed column. An isolation gap is arranged between the upper end surface of the damping block and the lower end surface of the fixed frame.

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