A speaker component detection device

Abstract

The present invention relates to a loudspeaker assembly detection device, and relates to the detection field of loudspeaker assemblies, including a mounting base plate, a front-to-back symmetrical mounting bracket mounted on the upper end of the mounting base plate, a detection unit disposed on the upper end of the mounting base plate, and a fixing unit disposed between the front and back mounting brackets. The present invention can simultaneously perform sound detection on loudspeaker assemblies inside multiple microphones under the same environment, which can not only increase the detection efficiency of the loudspeaker assemblies, but also compare and reference the detection results of the same batch of loudspeaker assemblies, thereby increasing the validity and accuracy of the detection results; the present invention can also perform sound detection on the loudspeaker assembly in the microphone under complex environments in combination with high or low temperatures and humidity, so as to simulate the use of the microphone outdoors in winter or outdoors in summer, fit the actual use conditions, improve the comprehensiveness of the detection, and facilitate obtaining more realistic detection results.

Description

Technical Field

[0001] The invention relates to the field of detection of loudspeaker assemblies, and in particular to a loudspeaker assembly detection device. Background Art

[0002] A speaker is a common electroacoustic transducer that can convert electrical signals into sound signals. It is used to amplify and transmit sound signals and is widely used in various electronic devices and systems, such as audio systems, mobile phones and computers, as well as cars and transportation vehicles. There are many types of speakers. Electric speakers are the most widely used speakers, and most of them are cone-shaped and dome-shaped. Dome-shaped speakers are mainly composed of a diaphragm, a voice coil, a centering support, a magnet, etc. When the voice coil in the magnetic field passes through the audio current, it will be subject to a driving force proportional to the current, thereby generating vibrations in the air gap that matches the magnetic circuit system. The vibration of the cone diaphragm caused by the vibration of the voice coil will push the surrounding air molecules, thereby generating sound waves. The speaker is an important part of the audio equipment, and its quality directly affects the quality of the audio, so the speaker components need to be tested to ensure that the sound quality of the speaker is clear and balanced, without noise or distortion.

[0003] However, there are still the following problems in the process of testing speaker components:

[0004] 1. Currently, speaker components are generally tested one by one, which has low testing efficiency. In addition, multiple speaker components are not tested under the same conditions, resulting in relatively simple test results for different speaker components, which are not comparable and referenceable, and the effectiveness and accuracy of the test results are poor.

[0005] 2. In real life, speaker components may work in high temperature, low temperature or humid environment. The use environment is relatively complex. It is difficult to comprehensively evaluate the performance of speaker components by testing them in a single environment, and the authenticity of the test results is low.

[0006] Therefore, in order to solve the problems existing in the detection process of the loudspeaker assembly, the present invention provides a loudspeaker assembly detection device. Summary of the invention

[0007] The present invention provides a loudspeaker component detection device, comprising a mounting base plate, a front-to-back symmetrical mounting bracket being mounted on the upper end of the mounting base plate, a detection unit being arranged on the upper end of the mounting base plate, and a fixing unit being arranged between the front and back mounting brackets; the detection unit comprises a humidity simulation box, a high-temperature simulation box, a low-temperature simulation box and a natural reference simulation box which are sequentially mounted on the upper end of the mounting base plate from left to right, a sound sensor mounted on the upper end of the mounting base plate is arranged inside each of the four simulation boxes, and a knocking assembly which is evenly arranged up and down is arranged on the right inner wall of each of the four simulation boxes, and a closing assembly is arranged on the upper end of the mounting base plate; a water sprayer is installed on the left inner wall of the humidity simulation box, a nozzle which is evenly arranged front and back is arranged on the lower end of the water sprayer, and a fixing unit is also arranged inside the humidity simulation box, which is located below the right side of the water sprayer and is installed The air dryer is installed at the upper end of the bottom plate, and the upper end of the air dryer is provided with evenly arranged hair-drying heads; the knocking component includes square plates symmetrically installed front and back on the left inner wall of the corresponding simulation box, a knocking rod is rotatably installed between the front and rear square plates, a knocking ball is arranged at the other end of the knocking rod, an inclined control spring is connected between the knocking rod and the right inner wall of the corresponding simulation box, a torsion spring shaft is arranged at the front end of the knocking rod, and the lever is rotatably arranged between the front square plate and the fixed plate through the torsion spring shaft, and the fixed plate is fixedly connected to the right inner wall of the corresponding simulation box; the fixed unit includes a U-shaped frame, and the fixing components evenly arranged front and back are arranged between the front and rear vertical sections of the U-shaped frame, and the ends away from the front and rear vertical sections of the U-shaped frame are provided with flipping components for controlling the flipping of the fixed unit, and a T-shaped plate is arranged at the upper end of the flipping component.

[0008] In one of the embodiments, the fixing assembly is composed of front and rear symmetrical clamping blocks, a circular groove corresponding to the fixing assembly is opened on the horizontal section of the C-shaped frame, and a left-right symmetrical threaded rod is rotatably installed between the front and rear vertical sections of the C-shaped frame, and the thread directions of the left and right threaded rods are opposite. The clamping blocks located on the front side of the same fixing assembly are threadedly connected to the threaded rod on the left, and the clamping blocks located on the rear side of the same fixing assembly are threadedly connected to the threaded rod on the right. The front end of the threaded rod passes through the front vertical section of the C-shaped frame and is then installed with a pulley. The pulleys on the left and right sides are connected through belt transmission. The rear end of the threaded rod located on the left side passes through the rear vertical section of the C-shaped frame and is connected to the output shaft of motor one. Motor one is installed at the rear end of the rear vertical section of the C-shaped frame. A knocking block is installed at the lower end of the right side of the horizontal section of the C-shaped frame, and a dial plate is installed at the right end of the horizontal section of the C-shaped frame. The dial plate is provided with a slot that is engaged with the dial rod.

[0009] In one of the embodiments, a horizontal guide rail is installed on the upper end of the mounting bracket, an electric skateboard is installed on the horizontal guide rail for sliding left and right, a support plate is installed on the side close to the front and rear electric skateboards, an electric push rod is installed on the support plate, and the pushing end is fixedly connected to the horizontal section of the T-shaped plate. The flip assembly includes a rotating disk fixedly connected to the vertical section of the U-shaped frame, the vertical section of the T-shaped plate is rotatably connected to the corresponding rotating disk, a rotating gear is installed at the end of the rotating disk away from the U-shaped frame, and the other end of the rotating gear is rotatably connected to the vertical section of the inverted L-shaped plate through a rotating shaft, the horizontal section of the inverted L-shaped plate is fixedly connected to the vertical section of the T-shaped plate, and fixed racks fixedly connected to the front and rear inner walls of the humidity simulation box and meshing with the corresponding rotating gears are provided above the front and rear sides of the air dryer.

[0010] In one of the embodiments, a horizontal plate is installed between the front and rear vertical sections of the C-shaped frame, and fixed columns evenly arranged front and back are installed on the upper end of the horizontal plate. A rectangular plate is slidably sleeved on the outside of the fixed column, and a connecting spring sleeved on the outside of the fixed column is connected between the horizontal plate and the rectangular plate. A push ring is installed on the right end of the rectangular plate, and a sliding column is installed on the left end of the rectangular plate. A cylindrical guide rail is installed on the left side of the C-shaped frame between the front and rear rotating disks, and an automatic slider is slidably installed on the cylindrical guide rail. A movable plate is installed on the right end of the automatic slider, and a wavy groove that slides with the sliding column is opened at the right end of the movable plate.

[0011] In one of the embodiments, the closing component includes an L-shaped bracket which is symmetrically arranged on the upper end of the mounting base plate and located between the front and rear mounting brackets; a cover plate which is symmetrically installed between the front and rear L-shaped brackets and is slidably connected to the upper end of the simulation box; a avoidance groove which is symmetrically installed between the front and rear and is used to slide left and right corresponding to the pushing end of the electric push rod; an upper rack plate is installed on the upper end of the right cover plate, and a lower rack plate is installed on the front end of the left cover plate; a connecting gear is meshed between the upper rack plate and the lower rack plate, and the front end of the connecting gear is connected to the output shaft of motor 2; motor 2 is installed on the vertical section of the L-shaped bracket on the front side; an electric slider is provided at the lower end of the L-shaped bracket, and the L-shaped bracket and the closing component can be controlled to move left and right along the mounting base plate by the electric slider.

[0012] In one of the embodiments, the knocking rods are all threaded telescopic rods, the knocking ball is fixedly connected to the telescopic end of the knocking rod, the front end of the fixed section of the knocking rod is provided with circumferentially evenly arranged sockets, the rear end of the torsion spring shaft is rotatably installed with a circular push plate that movably penetrates the front square plate and is fixedly connected to the lever, and the rear end of the circular push plate is installed with an insertion rod that is plugged into the socket.

[0013] In one of the embodiments, a bolt that rotates and penetrates a fixed plate is installed at the front end of the torsion spring shaft, a nut is threadedly installed on the bolt after it penetrates the fixed plate, and a limit plate that contacts the lower end surface of the shift rod is fixedly installed on the outside of the torsion spring shaft.

[0014] In one of the embodiments, a ratchet is fixedly mounted on one end of the rotating shaft close to the vertical section of the inverted L-shaped plate, and the upper end of the ratchet is engaged with a pawl that is rotatably connected to the vertical section of the inverted L-shaped plate via a torsion spring rod, and a triangular clamping block is installed on the right end of the pawl, and an automatic push rod fixedly connected to the vertical section of the inverted L-shaped plate is arranged above the inclined section of the triangular clamping block.

[0015] In summary, the present invention includes at least one of the following beneficial effects:

[0016] 1. The present invention can simultaneously perform sound detection on the speaker assemblies inside multiple microphones under the same environment, which can not only increase the detection efficiency of the speaker assemblies, but also compare and cross-reference the detection results of the same batch of speaker assemblies, thereby increasing the effectiveness and accuracy of the detection results.

[0017] 2. The present invention can use a humidity simulation box to simulate the situation where a person sprays saliva onto the microphone when using the microphone, thereby detecting whether humidity has an effect on the sound of the speaker assembly, thereby evaluating the performance of the speaker assembly under humidity conditions.

[0018] 3. The present invention can combine high temperature or low temperature and humidity to perform sound detection on the speaker assembly in the microphone in a complex environment to simulate the use of the microphone outdoors in winter or summer, which is in line with actual usage, improves the comprehensiveness of the detection, and is conducive to obtaining more realistic detection results.

[0019] In addition to the technical problems solved by the embodiments of the present invention described above, the technical features that constitute the technical scheme, and the beneficial effects brought about by the technical features of these technical schemes, other technical problems that can be solved by a speaker component detection device provided by an embodiment of the present application, other technical features included in the technical scheme, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the main stereoscopic structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the sealing component of the present invention.

[0023] Figure 3It is a schematic diagram of the three-dimensional structure of the fixing unit and the detection unit of the present invention.

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the striking component of the present invention.

[0025] Figure 5 It is a three-dimensional structural schematic diagram of the circular push plate, the insertion rod and the insertion hole of the present invention.

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the water sprayer, air dryer and fixing unit of the present invention.

[0027] Figure 7 It is a three-dimensional structural schematic diagram of the fixing assembly and the flipping assembly of the present invention.

[0028] Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure of area A in the middle.

[0029] Fig. 9 It is a schematic diagram of the three-dimensional structure of the rectangular plate and the push ring of the present invention.

[0030] Fig.10 It is a schematic diagram of the three-dimensional structure of the moving plate and the wavy groove of the present invention.

[0031] Fig.11 It is a schematic diagram of the changes of the knocking component of the present invention during the knocking process.

[0032] Figure numerals: 1, mounting base plate; 11, detection unit; 111, humidity simulation box; 112, high temperature simulation box; 113, low temperature simulation box; 114, natural reference simulation box; 115, sound sensor; 117, water sprayer; 118, air dryer; 2, mounting bracket; 21, fixing unit; 211, U-shaped frame; 212, T-shaped plate; 213, horizontal guide rail; 214, electric skateboard; 215, electric push rod; 221, clamping block; 222, threaded rod; 223, pulley; 225, motor one; 231, L-shaped bracket; 232, cover plate; 233, avoidance groove; 234, upper rack plate; 235, lower rack plate; 237, motor two; 2 41. Square plate; 242. Knocking rod; 243. Knocking ball; 244. Knocking block; 245. Paddle plate; 246. Control spring; 247. Torsion spring shaft; 248. Paddle rod; 249. Fixed plate; 250. Socket; 251. Round push plate; 252. Insert rod; 253. Limit plate; 255. Fixed column; 256. Rectangular plate; 257. Push ring; 258. Cylindrical guide rail; 259. Automatic slider; 261. Moving plate; 262. Wave-shaped groove; 263. Rotating disk; 264. Rotating gear; 265. Inverted L-shaped plate; 266. Ratchet; 267. Paw; 268. Fixed rack; 269. Triangular block; 271. Automatic push rod. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0034] See also Figure 1 and Figure 3 A speaker assembly detection device includes a mounting base plate 1, a front-to-back symmetrical mounting bracket 2 is mounted on the upper end of the mounting base plate 1, a detection unit 11 is arranged on the upper end of the mounting base plate 1, and a fixing unit 21 is arranged between the front and rear mounting brackets 2.

[0035] See also Figure 1 , Figure 2 , Figure 3 and Figure 6The fixing unit 21 includes a U-shaped frame 211, and a fixing component evenly arranged front and back is arranged between the front and rear vertical sections of the U-shaped frame 211. A flipping component for controlling the flipping of the fixing unit 21 is arranged at one end of the front and rear vertical sections of the U-shaped frame 211 that are far away from each other, and a T-shaped plate 212 is arranged on the upper end of the flipping component. A horizontal guide rail 213 is installed on the upper end of the mounting bracket 2, and an electric slide plate 214 is slidably installed on the horizontal guide rail 213. A support plate is installed on the side where the front and rear electric slide plates 214 are close to each other, and an electric push rod 215 with a pushing end fixedly connected to the horizontal section of the T-shaped plate 212 is installed on the support plate.

[0036] See also Figure 6 , Figure 7 and Fig. 9 The fixing assembly is composed of front and rear symmetrical clamping blocks 221, and a circular groove corresponding to the fixing assembly is opened on the horizontal section of the C-shaped frame 211. A left-right symmetrical threaded rod 222 is rotatably installed between the front and rear vertical sections of the C-shaped frame 211, and the thread directions of the left and right threaded rods 222 are opposite. The clamping blocks 221 located on the front side of the same fixing assembly are threadedly connected to the threaded rod 222 on the left, and the clamping blocks 221 located on the rear side of the same fixing assembly are threadedly connected to the threaded rod 222 on the right. The front end of the threaded rod 222 passes through the front vertical section of the C-shaped frame 211 and is then installed with a pulley 223. The pulleys 223 on the left and right sides are connected through belt transmission. The rear end of the threaded rod 222 located on the left passes through the rear vertical section of the C-shaped frame 211 and is connected to the output shaft of a motor 225. The motor 225 is installed at the rear end of the rear vertical section of the C-shaped frame 211.

[0037] The present invention uses a microphone as a carrier of a loudspeaker assembly to complete the detection of the loudspeaker assembly. First, the bottoms of multiple microphones need to be inserted into the circular grooves on the horizontal section of the U-shaped frame 211 in sequence. At this time, the microphones are just located between the front and rear opposite clamping blocks 221. Then, the motor 225 drives the threaded rod 222 on the left side to rotate, and the pulley 223 on the left side rotates synchronously. Under the cooperation between the pulleys 223 and the belts on the left and right sides, the right threaded rod 222 and the left threaded rod 222 keep rotating synchronously. Since the thread directions of the left and right threaded rods 222 are opposite, the clamping blocks 221 on the left and right threaded rods 222 can move synchronously toward each other along the horizontal section of the U-shaped frame 211. As the left and right threaded rods 222 rotate, the front and rear opposite clamping blocks 221 in the same group of fixed components move synchronously toward each other and gradually press against the microphones until the multiple groups of fixed components simultaneously complete the fixed clamping of the multiple microphones, thereby ensuring that the subsequent microphones can complete the detection in a stable state.

[0038] See also Figure 1 , Figure 3 and Figure 6The detection unit 11 includes a humidity simulation box 111, a high temperature simulation box 112, a low temperature simulation box 113 and a natural reference simulation box 114 which are installed on the upper end of the installation base plate 1 from left to right. The four simulation boxes are all heat-insulated and sound-insulated. The four simulation boxes are all provided with sound sensors 115 installed on the upper end of the installation base plate 1. The sound sensors 115 are connected to the existing external monitoring equipment (the monitoring equipment is not shown in the figure), and the right inner walls of the four simulation boxes are all provided with knocking components evenly arranged up and down. The high temperature simulation box 112 and the low temperature simulation box 113 can both achieve high temperature or low temperature using existing technology. A water sprayer 117 is installed on the left inner wall of the humidity simulation box 111. The lower end of the water sprayer 117 is provided with nozzles evenly arranged front and back. The humidity simulation box 111 is also provided with an air dryer 118 located below the right side of the water sprayer 117 and installed on the upper end of the installation base plate 1. The upper end of the air dryer 118 is provided with evenly arranged hair dryers, and a closing component for closing the simulation box is provided on the upper end of the installation base plate 1.

[0039] See also Figure 1 and Figure 2 The closed component includes an L-shaped bracket 231 which is symmetrically arranged at the upper end of the mounting base plate 1 and located between the front and rear mounting brackets 2. A cover plate 232 which is symmetrically installed between the front and rear L-shaped brackets 231 and is slidably connected to the upper end of the simulation box. The cover plate 232 is provided with a avoidance groove 233 which is symmetrically installed between the front and rear and is used to correspond to the left and right sliding of the pushing end of the electric push rod 215. An upper rack plate 234 is installed at the upper end of the right cover plate 232, and a lower rack plate 235 is installed at the front end of the left cover plate 232. A connecting gear is meshed between the upper rack plate 234 and the lower rack plate 235. The front end of the connecting gear is connected to the output shaft of the motor 237. The motor 237 is installed on the vertical section of the L-shaped bracket 231 on the front side. An electric slider is arranged at the lower end of the L-shaped bracket 231, and the L-shaped bracket 231 and the closed component can be controlled to move left and right along the mounting base plate 1 through the electric slider.

[0040] Subsequently, the electric slide plates 214 on the front and rear sides can drive the corresponding electric push rods 215 to move from left to right along the horizontal guide rail 213 through the support plate, and the electric push rods 215 drive the fixing unit 21 and the fixed microphone to move right through the T-shaped plate 212 until the fixing unit 21 is located above the humidity simulation box 111. Then, the motor 237 can be used to drive the connecting gear to rotate, and the connecting gear drives the upper rack plate 234 and the lower rack plate 235 to move synchronously in the opposite direction. The cover plates 232 on the left and right sides respectively move the lower rack plate 235 and the upper rack plate 234 in the synchronous direction until the humidity simulation box 111 is in the open position. In the open state, after the subsequent electric push rod 215 pushes the fixed unit 21 as a whole into the humidity simulation box 111, the motor 237 can be used to drive the connecting gear to rotate in the opposite direction again, and the upper rack plate 234 and the lower rack plate 235 respectively drive the corresponding cover plate 232 to move toward each other synchronously until they are tightly pressed together, so that the humidity simulation box 111 is in the closed state, and the avoidance groove 233 can be used for the movement of the electric push rod 215 during the detection process. By closing the humidity simulation box 111, the external environment can be effectively avoided from interfering with the sound detection of the speaker assembly, thereby ensuring that the detection is carried out smoothly and stably.

[0041] See also Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The knocking assembly includes a square plate 241 symmetrically installed on the left inner wall of the corresponding simulation box, a knocking rod 242 is rotatably installed between the front and rear square plates 241, the knocking rod 242 is a threaded telescopic rod, and a knocking ball 243 is installed at the telescopic end of the knocking rod 242, a knocking block 244 is installed at the lower right end of the horizontal section of the U-shaped frame 211, and a paddle 245 is installed at the right end of the horizontal section of the U-shaped frame 211. An inclined control spring 246 is connected between the knocking rod 242 and the right inner wall of the corresponding simulation box, a torsion spring shaft 247 is set at the front end of the knocking rod 242, and the paddle 248 is rotatably set between the front square plate 241 and the fixed plate 249 through the torsion spring shaft 247, and the fixed Plate 249 is fixedly connected to the corresponding right inner wall of the simulation box, a slot is provided on the dial plate 245 for engaging with the dial rod 248, a front end of the fixed section of the knock rod 242 is provided with circumferentially evenly arranged sockets 250, a rear end of the torsion spring shaft 247 is rotatably installed with a circular push plate 251 that movably penetrates the front square plate 241 and is fixedly connected to the dial rod 248, a rear end of the circular push plate 251 is installed with an insert rod 252 that engages with the socket 250, a front end of the torsion spring shaft 247 is installed with a bolt that rotatably penetrates the fixed plate 249, a nut is threadedly installed after the bolt penetrates the fixed plate 249, and a limit plate 253 that contacts the lower end surface of the dial rod 248 is fixedly installed on the outside of the torsion spring shaft 247.

[0042] After the humidity simulation box 111 is in the open state, the fixed unit 21 and the microphone can be pushed downward by the electric push rod 215. At this time, the fixed unit 21 is located on the right side of the water sprayer 117. Before the rotating gear 264 engages with the fixed rack 268, the fixed unit 21 can be driven by the electric slide plate 214 to move left to the bottom of the water sprayer 117. At this time, the microphone is just below the nozzle. Then the water sprayer 117 sprays a small amount of water on the upper ends of multiple microphones through the nozzle. Then, the fixed unit 21 can be driven by the electric slide plate 214 to move right until the fixed unit 21 reaches the right side of the humidity simulation box 111. At this time, the U-shaped frame 211 just drives the paddle 245 to move to the bottom of the lowest knocking component.

[0043] See also Fig. 9 and Fig.10 A horizontal plate is installed between the front and rear vertical sections of the C-shaped frame 211, and a fixed column 255 evenly arranged front and back is installed on the upper end of the horizontal plate. A rectangular plate 256 is slidably sleeved on the outside of the fixed column 255. A connecting spring sleeved on the outside of the fixed column 255 is connected between the horizontal plate and the rectangular plate 256. A push ring 257 is installed on the right end of the rectangular plate 256, and a sliding column is installed on the left end of the rectangular plate 256. A cylindrical guide rail 258 located on the left side of the C-shaped frame 211 is installed between the front and rear rotating disks 263, and an automatic slider 259 is slidably installed on the cylindrical guide rail 258. A movable plate 261 is installed on the right end of the automatic slider 259, and a wave-shaped groove 262 that slides with the sliding column is opened on the right end of the movable plate 261.

[0044] In the initial state, all microphones are in the off state, and an independent power supply is provided inside the microphone, and a control switch is provided outside the microphone. In the process of placing the microphone on the upper end of the horizontal section of the U-shaped frame 211, the bottom of the microphone can be passed through the push ring 257 and then placed inside the circular groove. The push ring 257 is engaged with the control switch. After the dial plate 245 is located below the knocking component, the automatic slider 259 can drive the movable plate 261 to move from back to front along the cylindrical guide rail 258. The movable plate 261 first contacts the sliding column of the rearmost rectangular plate 256. Under the cooperation of the wavy groove 262 and the sliding column, the rectangular plate 256 and the push ring 257 move upward along the fixed column 255. The push ring 257 drives the control switch to move upward so that the rearmost microphone is in the on state, and the other microphones are still in the off state.

[0045] like Fig.11As shown, the electric push rod 215 can then drive the fixed unit 21 to move upward as a whole through the T-plate 212. During this process, the C-shaped frame 211 contacts the lever 248 through the lever plate 245 and the slot. The lever 248 is pushed upward and rotates upward around the torsion spring shaft 247. The circular push plate 251 rotates synchronously with the lever 248. With the cooperation of the plug rod 252 and the socket 250, the knocking rod 242 drives the knocking ball 243 to rotate upward quickly. The upwardly rotating knocking ball 243 collides with the knocking block 244 at the lower end of the horizontal section of the C-shaped frame 211 to produce a sound. The sound at this time can be received and amplified by the speaker assembly inside the rearmost microphone. When the sound is transmitted to the sound sensor 115, the sound wave causes the diaphragm in the speaker assembly to vibrate, thereby causing the capacitor or resistor inside the sensor to generate a The sound intensity, frequency and phase parameters of the sound are monitored and recorded, and then the data can be compared and analyzed later to characterize the performance of the speaker assembly. As the bracket 211 and the dial plate 245 continue to move upward, the lever 248 gradually disengages from the slot. At this time, the lever 248 can be rotated and reset under the action of the torsion spring shaft 247. During the rotation of the lever 248, the limit plate 253 on the torsion spring shaft 247 always limits the lower end of the lever 248 to ensure that the lever 248 is always in a horizontal state in the initial state. The knocking rod 242 drives the knocking ball 243 to rotate downward and reset under the action of the control spring 246.

[0046] After the microphone at the rear end completes sound collection, the movable plate 261 can be driven to continue to move forward by the automatic slider 259 until the movable plate 261 and the wavy groove 262 are away from the sliding column and rectangular plate 256 at the rear end. At this time, the rectangular plate 256 at the rear end is moved down and reset along the fixed column 255 under the action of the connecting spring, and the push ring 257 drives the control switch of the microphone at the rear end to move down synchronously, so that the microphone at the rear end is in the off state. Subsequently, the switches of the remaining microphones can be controlled one by one in the same manner as described above, and then the fixed unit 21 and the microphone as a whole can be driven to move up step by step by the electric push rod 215, and the knocking ball 243 is made to collide with the knocking block 244 again in the same manner as described above. The sound sensor 115 monitors and records the sound with the external monitoring device, and so on, completes the sound detection of the internal speaker components of multiple microphones in turn. It needs to be ensured that when the knocking ball 243 knocks the knocking block 244, only one microphone is in the on state, and the other microphones are in the off state, so as to prevent different microphones from interfering with each other when receiving sounds and causing errors and distortions in the detection data, thereby improving the authenticity and validity of the detection data. Since the microphones are in a wet state at this time, this test can simulate the situation where saliva is sprayed on the microphone when a person is using the microphone, so as to detect whether the humidity has an effect on the sound of the speaker assembly and evaluate the performance of the speaker assembly under humidity conditions.

[0047] Before the knocking assembly works, the nut can be rotated to allow the torsion spring shaft 247 to rotate freely, and then the torsion spring shaft 247 and the lever 248 can be moved forward along the fixing plate 249 as a whole, and the circular push plate 251 moves forward synchronously therewith until the insertion rod 252 is away from the insertion hole 250, and then the knocking rod 242 and the torsion spring shaft 247 can be rotated to adjust the insertion position of the insertion rod 252 and the insertion hole 250, and after the knocking rod 242 is rotated to a suitable position, the torsion spring shaft 247 can be pushed backward along the fixing plate 249 again, and the circular push plate 251 can be moved forward synchronously therewith. 1 drives the insertion rod 252 to be plugged into the corresponding insertion hole 250 again. During this process, the limit plate 253 rotates synchronously with the torsion spring shaft 247 and always abuts against the lower end of the lever 248 to ensure the stability of the lever 248 when it is rotated to different angles. Then, the torsion spring shaft 247 is fixed again by the cooperation of the nut and the bolt, so that the angle between the lever 248 and the knocking rod 242 can be changed. However, the angle of the knocking rod 242 does not change at this time and still maintains the original tilted state, while the knocking rod 242 is not tilted. The knocking position of the knocking ball 243 and the knocking block 244 changes, so the telescopic section of the knocking rod 242 needs to be rotated to adjust the position of the knocking ball 243 to ensure that the knocking ball 243 can always collide with the knocking block 244. The larger the angle between the lever 248 and the knocking rod 242, the greater the knocking force of the knocking ball 243, and the louder the sound produced by the knocking. The smaller the angle between the lever 248 and the knocking rod 242, the smaller the knocking force of the knocking ball 243, and the smaller the sound produced by the knocking. Thus, the speaker assembly can be monitored in different sound environment. In addition, the knocking force of different knocking assemblies can be adjusted to different sizes, or the knocking force of different knocking assemblies can be adjusted to a uniform size. The speaker assembly of the same microphone can be tested in different sound environments, or the speaker assemblies of different microphones can be tested in the same sound environment, thereby simulating the different sizes of sounds received by the microphone in actual use, which is conducive to obtaining more real and effective detection data, and then the performance of the speaker assembly can be accurately evaluated.

[0048] Testing the speaker components inside multiple microphones under the same environment at the same time not only increases the testing efficiency of the speaker components, but also allows the testing results of the same batch of speaker components to be compared and referenced to each other, thereby increasing the effectiveness and accuracy of the testing results.

[0049] See also Figure 3 , Figure 6 , Figure 7 and Figure 8The flip assembly includes a rotating disk 263 fixedly connected to the vertical section of the U-shaped frame 211, the vertical section of the T-shaped plate 212 is rotatably connected to the corresponding rotating disk 263, and a rotating gear 264 is installed at one end of the rotating disk 263 away from the U-shaped frame 211. The other end of the rotating gear 264 is rotatably connected to the vertical section of the inverted L-shaped plate 265 through a rotating shaft. The horizontal section of the inverted L-shaped plate 265 is fixedly connected to the vertical section of the T-shaped plate 212, and the rotating shaft is close to one end of the vertical section of the inverted L-shaped plate 265. A ratchet 266 is fixedly mounted on the end, and the upper end of the ratchet 266 is clamped with a pawl 267 which is rotatably connected to the vertical section of the inverted L-shaped plate 265 through a torsion spring rod. A triangular clamping block 269 is installed on the right end of the pawl 267. An automatic push rod 271 fixedly connected to the vertical section of the inverted L-shaped plate 265 is arranged above the inclined section of the triangular clamping block 269. Fixed racks 268 fixedly connected to the front and rear inner walls of the humidity simulation box 111 and meshing with the corresponding rotating gear 264 are arranged above the front and rear sides of the air dryer 118.

[0050] After completing the sound detection of the speaker assembly in the microphone under the humid environment, the fixed unit 21 and the microphone can be moved to the top of the air dryer 118 again through the cooperation of the electric push rod 215 and the electric slide plate 214, and the fixed unit 21 can be gradually moved to the left. At this time, the rotating gear 264 gradually engages with the fixed rack 268 and rotates. The rotating gear 264 drives the rotating disk 263 to rotate synchronously. The U-shaped frame 211, the fixed assembly and the microphone as a whole are turned synchronously with the rotating disks 263 on the front and rear sides. During the turning process, the air dryer 118 quickly dries the wet microphone through the hair dryer. The microphone turned downward is more conducive to discharging a small amount of moisture in the microphone, thereby improving the drying efficiency. Under the cooperation of the rotating gear 264 and the fixed rack 268, the fixed unit 21 moved to the left gradually turns over a circle to reset and make the microphone face vertically upward again. At this time, the microphone has been completely dried. During the rotation of the rotating gear 264, the pushing end of the automatic push rod 271 presses down against the triangular card. The triangular block 269 drives the pawl 267 to rotate upward around the torsion spring rod to move away from the ratchet 266. At this time, the ratchet 266 can rotate freely with the rotating gear 264. When the rotating gear 264 and the ratchet 266 are in a stationary state, the pushing section of the automatic push rod 271 moves upward to move away from the triangular block 269. At this time, the triangular block 269 and the pawl 267 rotate downward under the action of the torsion spring rod, so that the pawl 267 is engaged with the ratchet 266 again. The cooperation of the pawl 267 can limit the rotation of the rotating gear 264, and can also prevent the frame 211 from being rotated by the downward force when the lever 248 is pushed by the lever 248, thereby preventing the smooth operation of the knocking component, thereby ensuring the stability of the fixed unit 21 and the microphone as a whole. Then, the humidity simulation box 111 can be opened again through the closing component, and the fixed unit 21 and the microphone can be driven by the electric slide 214 and the electric push rod 215 to move up and reset to leave the humidity simulation box 111.

[0051] Then, the electric slide plate 214 can be used to drive the fixing unit 21 and the microphone as a whole to move to the right above the high temperature simulation box 112 or the low temperature simulation box 113 again. At the same time, the existing electric slider can be used to drive the L-shaped bracket 231 and the sealing component as a whole to move to the right synchronously, and the opening and closing of the high temperature simulation box 112 or the low temperature simulation box 113 can be completed in the same way. Then, the fixing unit 21 and the microphone can be moved to the inside of the high temperature simulation box 112 or the low temperature simulation box 113 in the same way as mentioned above, and then the temperature of the high temperature simulation box 112 or the low temperature simulation box 113 can be adjusted. At the same time, the high temperature simulation box 112 or the low temperature simulation box 113 can be sealed and insulated by the sealing component to ensure that the microphone is always in a stable and soundproof detection environment. Then, the sound detection of the speaker component in the microphone in the high temperature or low temperature environment can be carried out in the same way as mentioned above. In addition, you can choose not to air-dry the microphone after detection in a humid environment, but directly move the microphone with a certain humidity to the high temperature simulation box 112. Or low temperature simulation box 113, high temperature or low temperature is combined with humidity for detection to simulate the situation of using the microphone outdoors in winter or outdoors in summer, which is in line with actual usage, improves the comprehensiveness of the detection, and is conducive to obtaining more realistic detection results. Among them, the order of detection in humidity simulation box 111, high temperature simulation box 112 and low temperature simulation box 113 can be changed, and the simulation boxes in which the sound detection of the speaker components is performed can be selected according to needs, but in the end, the microphone needs to be placed in natural reference simulation box 114 for sound detection of the speaker components, which serves as reference data for the detection results in different environments, and then the detection results can be effectively analyzed, and finally the influence of different temperatures and humidities on the sensor components can be obtained. It should be noted that the sound sensors 115 inside high temperature simulation box 112, low temperature simulation box 113 and natural reference simulation box 114 can all record the detection results, but the sound sensors 115 inside different simulation boxes only work when the corresponding simulation box is detected.

[0052] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by terms such as “middle”, “upper”, “lower”, “front”, “back”, “left”, “right”, “top” and “bottom” are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0053] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a sliding connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A loudspeaker assembly detection device, comprising a mounting base (1), wherein a front-to-back symmetrical mounting bracket (2) is mounted on the upper end of the mounting base (1), characterized in that: A detection unit (11) is provided at the upper end of the mounting base plate (1), and a fixing unit (21) is provided between the front and rear mounting brackets (2); The detection unit (11) comprises a humidity simulation box (111), a high temperature simulation box (112), a low temperature simulation box (113) and a natural reference simulation box (114) which are sequentially installed on the upper end of the installation base plate (1) from left to right, wherein each of the four simulation boxes is provided with a sound sensor (115) installed on the upper end of the installation base plate (1), and each of the right inner walls of the four simulation boxes is provided with a knocking assembly evenly arranged up and down, and a sealing assembly is provided on the upper end of the installation base plate (1); A water sprayer (117) is installed on the left inner wall of the humidity simulation box (111), and nozzles arranged evenly in front and back are arranged at the lower end of the water sprayer (117). An air dryer (118) is also arranged inside the humidity simulation box (111), which is located below the right side of the water sprayer (117) and installed on the upper end of the installation base plate (1), and air blowers arranged evenly are arranged at the upper end of the air dryer (118); The knocking assembly comprises a square plate (241) symmetrically mounted on the right inner wall of the corresponding simulation box, a knocking rod (242) is rotatably mounted between the front and rear square plates (241), a knocking ball (243) is arranged at the other end of the knocking rod (242), an inclined control spring (246) is connected between the knocking rod (242) and the right inner wall of the corresponding simulation box, a torsion spring shaft (247) is arranged at the front end of the knocking rod (242), a lever (248) is rotatably arranged between the front square plate (241) and a fixed plate (249) through the torsion spring shaft (247), and the fixed plate (249) is fixedly connected to the right inner wall of the corresponding simulation box; The fixing unit (21) comprises a C-shaped frame (211), and fixing components evenly arranged front and back are arranged between the front and rear vertical sections of the C-shaped frame (211), and a flipping component for controlling the flipping of the fixing unit (21) is arranged at one end of the C-shaped frame (211) where the front and rear vertical sections are far away from each other, and a T-shaped plate (212) is arranged at the upper end of the flipping component.

2. A speaker assembly detection device according to claim 1, characterized in that: The fixing assembly is composed of front and rear symmetrical clamping blocks (221), a circular groove corresponding to the fixing assembly is opened on the horizontal section of the C-shaped frame (211), and a left-right symmetrical threaded rod (222) is rotatably installed between the front and rear vertical sections of the C-shaped frame (211), and the thread directions of the left and right threaded rods (222) are opposite. The clamping blocks (221) located on the front side of the same fixing assembly are all threadedly connected to the left threaded rod (222), and the clamping blocks (221) located on the rear side of the same fixing assembly are all threadedly connected to the right threaded rod (222), and the front end of the threaded rod (222) passes through the C-shaped frame. A pulley (223) is installed behind the front vertical section (211), and the pulleys (223) on the left and right sides are connected through a belt transmission. The rear end of the threaded rod (222) on the left side penetrates the rear vertical section of the U-shaped frame (211) and is connected to the output shaft of the motor 1 (225). The motor 1 (225) is installed at the rear end of the rear vertical section of the U-shaped frame (211). A knocking block (244) is installed at the lower right end of the horizontal section of the U-shaped frame (211). A shifting plate (245) is installed at the right end of the horizontal section of the U-shaped frame (211), and a slot for engaging with the shifting rod (248) is provided on the shifting plate (245).

3. A speaker assembly detection device according to claim 1, characterized in that: The upper end of the mounting bracket (2) is provided with a horizontal guide rail (213), an electric slide plate (214) is slidably mounted on the horizontal guide rail (213), a support plate is mounted on the side close to the front and rear electric slide plates (214), an electric push rod (215) whose pushing end is fixedly connected to the horizontal section of the T-shaped plate (212) is mounted on the support plate, and the flip assembly includes a rotating disc (263) fixedly connected to the vertical section of the T-shaped frame (211), and the vertical section of the T-shaped plate (212) is connected to the corresponding rotating disc (263). The rotating disc (263) is rotatably connected to one end of the rotating disc (263) away from the U-shaped frame (211), and a rotating gear (264) is installed at the other end of the rotating gear (264) through a rotating shaft. The horizontal section of the inverted L-shaped plate (265) is fixedly connected to the vertical section of the T-shaped plate (212). Fixed racks (268) are arranged above the front and rear sides of the air dryer (118), which are fixedly connected to the front and rear inner walls of the humidity simulation box (111) and mesh with the corresponding rotating gear (264).

4. A speaker assembly detection device according to claim 1, characterized in that: A horizontal plate is installed between the front and rear vertical sections of the U-shaped frame (211), and a fixed column (255) evenly arranged in front and back is installed on the upper end of the horizontal plate. A rectangular plate (256) is slidably sleeved on the outside of the fixed column (255), and a connecting spring sleeved on the outside of the fixed column (255) is connected between the horizontal plate and the rectangular plate (256). A push ring (257) is installed on the right end of the rectangular plate (256), and a sliding column is installed on the left end of the rectangular plate (256). A cylindrical guide rail (258) located on the left side of the U-shaped frame (211) is installed between the front and rear rotating disks (263), and an automatic slider (259) is slidably installed on the cylindrical guide rail (258). A movable plate (261) is installed on the right end of the automatic slider (259), and a wave-shaped groove (262) that slidably cooperates with the sliding column is opened on the right end of the movable plate (261).

5. The speaker assembly detection device according to claim 1, characterized in that: The sealing assembly comprises an L-shaped bracket (231) symmetrically arranged at the upper end of the mounting base plate (1) and located between the front and rear mounting brackets (2); a cover plate (232) symmetrically arranged between the front and rear L-shaped brackets (231) and slidably connected to the upper end of the simulation box; a position avoidance groove (233) symmetrically arranged at the upper end of the cover plate (232) and used for corresponding left and right sliding of the pushing end of the electric push rod (215); an upper rack plate (234) is installed at the upper end of the right cover plate (232) A lower rack plate (235) is installed at the front end of the left cover plate (232), a connecting gear is meshed between the upper rack plate (234) and the lower rack plate (235), the front end of the connecting gear is connected to the output shaft of the second motor (237), the second motor (237) is installed on the vertical section of the L-shaped bracket (231) on the front side, and an electric slider is provided at the lower end of the L-shaped bracket (231), and the L-shaped bracket (231) and the closing component can be controlled to move left and right along the installation base plate (1) through the electric slider.

6. The speaker assembly detection device according to claim 1, characterized in that: The knocking rod (242) is a threaded telescopic rod, the knocking ball (243) is fixedly connected to the telescopic end of the knocking rod (242), the front end of the fixed section of the knocking rod (242) is provided with circumferentially evenly arranged plug holes (250), the rear end of the torsion spring shaft (247) is rotatably mounted with a circular push plate (251) that movably penetrates the front square plate (241) and is fixedly connected to the lever (248), and the rear end of the circular push plate (251) is mounted with an insertion rod (252) that is plugged into and matched with the plug hole (250).

7. The speaker assembly detection device according to claim 1, characterized in that: The front end of the torsion spring shaft (247) is equipped with a bolt that rotates and penetrates the fixing plate (249). After the bolt penetrates the fixing plate (249), a nut is threadedly installed. The outside of the torsion spring shaft (247) is fixedly equipped with a limit plate (253) that contacts the lower end surface of the shifting rod (248).

8. The speaker assembly detection device according to claim 3, characterized in that: A ratchet (266) is fixedly mounted on one end of the rotating shaft close to the vertical section of the inverted L-shaped plate (265); the upper end of the ratchet (266) is engaged with a pawl (267) rotatably connected to the vertical section of the inverted L-shaped plate (265) via a torsion spring rod; a triangular clamping block (269) is mounted on the right end of the pawl (267); an automatic push rod (271) fixedly connected to the vertical section of the inverted L-shaped plate (265) is arranged above the inclined section of the triangular clamping block (269).

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