Bone conduction headphone detection device

Abstract

The application provides a bone conduction earphone detection device, which comprises a detection device shell and a controller. A multi-axis driving test carrier, a first damping member, a support frame and a second damping member are sequentially arranged in the detection device shell from top to bottom. The multi-axis driving test carrier comprises an outer support, an inner support and a carrier body. The outer support is provided with a first rotary driving device. One end of the inner support is fixedly connected with a moving end of the first rotary driving device. The other end of the inner support is rotatably connected with the outer support. The inner support is provided with a second rotary driving device and a balance weight. The carrier body is fixedly arranged on a moving end of the second rotary driving device. The balance weight arranged on the inner support can balance the eccentric torque, reduce the vibration deviation generated by the self operation, cooperate with the damping frame, isolate the external environment vibration and the internal vibration interference of the device, reduce the detection system error, and meet the high-precision quality control requirements of the mass production of bone conduction earphones.

Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, and specifically to a bone conduction headphone testing device. Background Technology

[0002] With the rapid iteration of electronic information technology and the booming development of the consumer electronics industry, various smart wearable electronic products have been widely integrated into people's daily lives and work scenarios, with their functional forms and application scenarios continuing to expand. Among them, bone conduction headphones, with their unique acoustic conduction characteristics of opening the ear canal and not blocking the auditory channel, have significant wearing advantages in scenarios such as sports and fitness, outdoor travel, and daily commuting, and their market penetration and application scale continue to expand. To meet users' high-quality usage needs for functions such as intelligent interaction, motion status monitoring, and head posture recognition, bone conduction headphones typically incorporate multiple MEMS inertial sensors such as accelerometers (ACC) and gyroscopes (GYRO) to achieve core functions such as action command recognition, motion data acquisition, and spatial posture tracking. The output accuracy, sensitivity, and response stability of the above sensors directly determine the overall performance of the headphones. Therefore, in the product manufacturing and quality control stages, it is necessary to conduct precise performance testing and parameter calibration of the sensing components integrated into the headphones.

[0003] Currently, for the performance testing of accelerometers (ACC) and gyroscopes (GYRO) sensors in bone conduction headphones, the industry mostly uses simple multi-axis testing equipment for basic performance verification. Such equipment generally suffers from insufficient mechanical precision and is easily affected by external environmental factors such as vibration during the testing process, resulting in large systematic errors in the test results. The data reproducibility and testing reliability are low, which cannot meet the high-efficiency and high-precision quality control requirements in the context of large-scale mass production of bone conduction headphones. To a certain extent, this restricts the upgrading and iteration of product performance and the steady improvement of production yield. Summary of the Invention

[0004] To address the problems in the prior art, this invention provides a bone conduction headphone testing device, which solves the problem of large systematic errors in the test results of accelerometer and gyroscope sensors for bone conduction headphones in the prior art.

[0005] This invention discloses a bone conduction headphone testing device, comprising a testing device housing and a controller. Inside the testing device housing, from top to bottom, are arranged a multi-axis drive testing vehicle, a first shock absorber, a support frame, and a second shock absorber. The multi-axis drive testing vehicle includes an outer support, an inner support, and a vehicle body. A first rotation drive device is mounted on the outer support. One end of the inner support is fixedly connected to the moving end of the first rotation drive device, and the other end of the inner support is rotatably connected to the outer support. The first rotation drive device can drive the inner support to rotate. A second rotation drive device and a counterweight are mounted on the inner support. The vehicle body is fixedly mounted on the moving end of the second rotation drive device. The second rotation drive device can drive the vehicle body to rotate. The counterweight cooperates with the second rotation drive device to improve the balance of the inner support during rotation. The first shock absorber cooperates with the second shock absorber to improve the stability of the multi-axis drive testing vehicle.

[0006] In a further improvement, the detection device housing is equipped with a barcode scanner, and the main body of the carrier is provided with a product placement position. The product placement position is provided with a product conforming seat, a product pressing component, and a label fixing component. The product pressing component is used to fix the bone conduction headphones in the product conforming seat, the label fixing component is used to fix the label strip of the bone conduction headphones, and the barcode scanner can scan the label strip of the bone conduction headphones to realize the communication connection between the controller and the bone conduction headphones.

[0007] The present invention is further improved in that the label fixing component includes a label fixing base and a vacuum suction connector. The label fixing base has a vacuum suction hole and a vacuum suction channel is provided inside the label fixing base. The two ends of the vacuum suction channel are respectively connected to the vacuum suction hole and the vacuum suction connector. The vacuum suction hole can adsorb the label strip of the bone conduction headphones onto the label fixing base.

[0008] The invention is further improved by having four product placement positions arranged in a grid pattern. A first electronic level is installed at the center of the main body of the vehicle, and a second electronic level is installed in each product placement position.

[0009] In a further improvement to the present invention, a marble base plate is provided between the multi-axis drive test vehicle and the first shock absorber. The marble base plate can improve the flatness of the installation of the multi-axis drive test vehicle while absorbing vibration energy.

[0010] The invention is further improved in that the first shock absorber is a rubber shock absorber pad, and there are four first shock absorbers, which are respectively set at the four corners of the marble base plate.

[0011] The invention is further improved in that the outer support is U-shaped, and a first rotation clearance position is provided on the outer support to cooperate with the inner support. A first rotation drive device is provided on one side of the first rotation clearance position of the outer support, and a rotation bearing is provided on the other side of the first rotation clearance position of the outer support. A connecting shaft is provided at one end of the inner support, and the connecting shaft is located in the rotation bearing.

[0012] The invention is further improved in that the inner support is also U-shaped, and the inner support is provided with a second rotation clearance position that cooperates with the main body of the vehicle. The second rotation drive device is located at the lower end of the inner support, and the balance counterweight is located at the upper end of the inner support.

[0013] The invention is further improved by using an air-floating vibration damper as the second damping component. There are four second damping components, which are respectively set at the four corners of the support frame.

[0014] The invention is further improved by providing a loading and unloading window on the housing of the detection equipment, and a safety light curtain on the side of the loading and unloading window, which is electrically connected to the controller.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention provides a bone conduction headphone testing device. Its structure effectively solves the problem of large systematic errors in the performance testing results of accelerometers and gyroscopes for bone conduction headphones in the prior art. Through a dual-axis structure where a first rotational drive device on the outer support drives the inner support to rotate, and a second rotational drive device on the inner support drives the main body of the device to rotate, precise adjustment of the headphone's multi-space posture can be achieved, covering multi-dimensional detection scenarios of inertial sensors. The balancing counterweight on the inner support can balance the off-center load torque, improving the dynamic balance of the inner support during rotation and reducing vibration deviations generated during its own operation. Combined with the first shock absorber, support frame, and second shock absorber arranged from top to bottom to form a graded shock absorption architecture, it simultaneously isolates external environmental vibrations and internal vibration interference, significantly improving the operational stability of the multi-axis driven testing device, reducing detection system errors, improving the reproducibility of test data and the reliability of results, and meeting the high-precision quality control requirements for mass production of bone conduction headphones. Attached Figure Description

[0016] To more clearly illustrate the solutions in this invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of a bone conduction headphone testing device according to the present invention; Figure 2This is a schematic diagram of the internal structure of a bone conduction headphone testing device according to the present invention; Figure 3 for Figure 2 Another perspective structural diagram; Figure 4 This is a schematic diagram of the main structure of the vehicle. Detailed Implementation

[0018] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings are used to distinguish different objects, not to describe a particular order.

[0019] In this invention, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment to other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this invention can be combined with other embodiments.

[0020] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0021] like Figure 1-4 As shown, the present invention discloses a bone conduction headphone testing device, comprising a testing device housing 1 and a controller. Inside the testing device housing 1, from top to bottom, are arranged a multi-axis drive testing vehicle, a first shock absorber 8, a support frame 15, and a second shock absorber 9. The multi-axis drive testing vehicle includes an outer support 2, an inner support 3, and a vehicle body 4. A first rotation drive device 5 is mounted on the outer support 2. One end of the inner support 3 is fixedly connected to the moving end of the first rotation drive device 5, and the other end of the inner support 3 is rotatably connected to the outer support 2. The first rotation drive device 5 can drive the inner support 3 to rotate. A second rotation drive device 6 and a counterweight 7 are mounted on the inner support 3. The vehicle body 4 is fixedly mounted on the moving end of the second rotation drive device 6. The second rotation drive device 6 can drive the vehicle body 4 to rotate. The counterweight 7 can cooperate with the second rotation drive device 6 to improve the balance of the inner support 3 during rotation. The first shock absorber 8 can cooperate with the second shock absorber 9 to improve the stability of the multi-axis drive testing vehicle.

[0022] The dual-axis structure, which uses the first rotary drive device 5 on the outer support 2 to drive the inner support 3 to rotate, and the second rotary drive device 6 on the inner support 3 to drive the main body 4 of the carrier to rotate, enables precise adjustment of the headphone's multi-space posture, covering multi-dimensional detection scenarios of inertial sensors. The balance counterweight 7 set in the inner support 3 can balance the off-center load torque, improve the dynamic balance of the inner support 3 during rotation, and reduce the vibration deviation generated by its own operation. Together with the first shock absorber 8, the support frame 15 and the second shock absorber 9 arranged from top to bottom, a graded shock absorption architecture is formed, which simultaneously isolates external environmental vibration and internal equipment vibration interference, significantly improves the operational stability of the multi-axis driven test carrier, reduces detection system errors, improves the reproducibility of test data and the reliability of results, and meets the high-precision quality control requirements of mass production of bone conduction headphones 100.

[0023] The testing equipment housing 1 is also equipped with a barcode scanner 10. The carrier body 4 is equipped with a product placement position, which is equipped with a product conforming seat 41, a product pressing component, and a label fixing component. The product pressing component is used to fix the bone conduction headphones 100 in the product conforming seat 41, and the label fixing component is used to fix the label strip 101 of the bone conduction headphones 100. The barcode scanner 10 can scan the label strip 101 of the bone conduction headphones 100 to realize the communication connection between the controller and the bone conduction headphones 100.

[0024] The barcode scanner 10 has a light source 11 on its side. The light source 11 provides supplementary lighting to the products on the carrier body 4, thereby improving the clarity of the barcode scanning image.

[0025] The product pressing component includes a pressing base 42, a pressing cylinder 43, and a pressing swing claw 44. The middle part of the pressing swing claw 44 is hinged to the pressing base 42. The moving end of the pressing cylinder 43 is hinged to one end of the pressing swing claw 44. The other end of the pressing swing claw 44 is a pressing head. The pressing cylinder 43 moves up and down, causing the pressing swing claw 44 to swing up and down, thereby pressing and fixing the product in the product conforming base 41.

[0026] The label fixing component includes a label fixing base 45 and a vacuum suction connector 46. The label fixing base 45 has a vacuum suction hole and a vacuum suction channel is provided inside the label fixing base 45. The two ends of the vacuum suction channel are connected to the vacuum suction hole and the vacuum suction connector 46, respectively. The vacuum suction hole can adsorb the label strip 101 of the bone conduction earphone 100 onto the label fixing base 45.

[0027] When the inspector loads the material, he places the label strip 101 on the label holder 45 and fixes the label strip 101 in place by vacuum suction, so that the barcode scanner 10 can accurately scan the code on the label strip 101.

[0028] There are four product placement positions, arranged in a grid pattern. A first electronic level 47 is installed at the center of the main body 4, and a second electronic level 48 is installed in each product placement position.

[0029] By setting up four first electronic levels 47 and one second electronic level 48, the levelness of the four product placement positions and the entire carrier body 4 can be effectively obtained, thus effectively improving the detection accuracy.

[0030] A marble base plate 12 is also provided between the multi-axis drive test vehicle and the first shock absorber 8. The marble base plate 12 can improve the flatness of the installation of the multi-axis drive test vehicle while absorbing vibration energy.

[0031] The marble base plate 12 has a high internal damping coefficient, which can effectively absorb and dissipate high-frequency vibration energy from the drive device or external environment. At the same time, the marble base plate 12 has high flatness, which can control the cumulative positioning deviation of the multi-axis drive test vehicle from the source.

[0032] The first shock absorber 8 is a rubber shock absorber pad. There are four first shock absorbers 8, which are respectively set at the four corners of the marble base plate 12.

[0033] The stability of the multi-axis drive test vehicle during the testing process can be further improved by setting up four first damping components 8.

[0034] The outer support 2 is U-shaped. The outer support 2 is provided with a first rotation clearance that cooperates with the inner support 3. The first rotation drive device 5 is provided on one side of the first rotation clearance of the outer support 2. The other side of the first rotation clearance of the outer support 2 is provided with a rotary bearing. One end of the inner support 3 is provided with a connecting shaft, which is located in the rotary bearing.

[0035] The upper end of the outer bracket 2 is provided with two outer bracket 2 side plates. The first rotation drive device 5 is provided on one of the outer bracket 2 side plates, and the rotation bearing is provided on the other outer bracket 2 side plate.

[0036] The inner support 3 is also U-shaped. The inner support 3 is provided with a second rotation clearance position that cooperates with the main body 4 of the vehicle. The second rotation drive device 6 is located at the lower end of the inner support 3, and the balance counterweight 7 is located at the upper end of the inner support 3.

[0037] By setting the counterweight 7, the stability during the rotation of the inner support 3 can be effectively balanced. The upper end of the inner support 3 is provided with two inner support 3 side plates, and the upper ends of the two inner support 3 side plates are provided with counterweight 7.

[0038] The second damping component 9 is an air-floating damper. There are four second damping components 9, which are respectively installed at the four corners of the support frame 15.

[0039] By installing air-float vibration dampers, vibrations can be effectively isolated, creating a near-vibration-free operating environment for the equipment and improving the accuracy of testing.

[0040] The housing 1 of the testing equipment is provided with a loading and unloading window 13, and a safety light curtain 14 is provided on the side of the loading and unloading window 13. The safety light curtain 14 is electrically connected to the controller.

[0041] During the inspection phase, inspectors can load and unload the carrier body 4 through the loading and unloading window 13. At the same time, the safety light curtain 14 ensures that the inspection is only carried out when the inspectors leave the loading and unloading window 13, thus improving the safety of the inspection process.

[0042] During the loading process, the inspector first places the bone conduction headphones 100 on the product conformal seat 41, and at the same time places the label strip 101 on the label fixing seat 45. The label strip 101 is fixed to the label fixing seat 45 under vacuum suction. The inspector leaves the loading and unloading window 13, and the product pressing component presses and fixes the bone conduction headphones 100.

[0043] The controller drives the barcode scanner 10 to take a picture of the label 101, collect the identification code of the label 101, and parse the identity information of the bone conduction headphones 100. At the same time, the controller obtains the Bluetooth information of the headphones based on the information. The controller communicates with the bone conduction headphones 100 via Bluetooth, and the bone conduction headphones 100 sends the built-in sensor parameters to the controller in real time.

[0044] The controller outputs motion commands, and the first rotation drive device 5 drives the U-shaped inner support 3 to rotate along the first axis to a preset angle. The counterweight 7 is simultaneously adapted to offset the off-center load, ensuring the rotational dynamic balance of the inner support 3. The second rotation drive device 6 drives the vehicle body 4 to rotate along the second axis, and switches multiple sets of spatial posture points in sequence. Under each preset posture, the controller simultaneously collects the output data of the built-in sensors of the four bone conduction headphones 100 to complete the detection of full-dimensional sensing accuracy, sensitivity, and response stability.

[0045] The controller automatically compares the collected sensor data with standard thresholds to determine the performance qualification of each earphone, generates a test report including detection posture, parameter deviation, and qualification status, and stores the associated earphone identification code in the system database; unqualified products are automatically marked with the corresponding workstation.

[0046] After the test is completed, the multi-axis driven test carrier is reset to the loading posture, and the product pressing parts and labels are released simultaneously by vacuum adsorption. The operator takes out the inspected products through the loading and unloading window 13 and puts them into the next batch of headphones to be inspected. The above process is repeated to achieve continuous batch testing.

[0047] As can be seen from the above, the beneficial effects of the present invention are as follows: Its structure effectively solves the problem of large systematic errors in the performance testing results of accelerometers and gyroscopes for bone conduction headphones 100 in the prior art. The dual-axis structure, where the first rotation drive device 5 on the outer support 2 drives the inner support 3 to rotate, and the second rotation drive device 6 on the inner support 3 drives the main body 4 of the carrier to rotate, enables precise adjustment of the headphone's multi-space posture, covering multi-dimensional detection scenarios of inertial sensors. The balancing counterweight 7 set in the inner support 3 can balance the off-center load torque, improve the dynamic balance of the inner support 3 during rotation, and reduce vibration deviations generated during its own operation. Combined with the first shock absorber 8, support frame 15, and second shock absorber 9 arranged from top to bottom to form a graded shock absorption architecture, it simultaneously isolates external environmental vibrations and internal equipment vibration interference, significantly improving the operational stability of the multi-axis driven test carrier, reducing detection system errors, improving the reproducibility of test data and the reliability of results, and meeting the high-precision quality control requirements for the mass production of bone conduction headphones 100.

[0048] The specific embodiments described above are preferred embodiments of the present invention and are not intended to limit the specific scope of the present invention. The scope of the present invention includes, but is not limited to, these specific embodiments. All equivalent changes made in accordance with the present invention are within the protection scope of the present invention.

Claims

1. A bone conduction headphone testing device, characterized in that: The device includes a testing equipment housing and a controller. Inside the testing equipment housing, from top to bottom, are arranged a multi-axis driven testing vehicle, a first shock absorber, a support frame, and a second shock absorber. The multi-axis driven testing vehicle includes an outer support, an inner support, and a vehicle body. A first rotary drive device is mounted on the outer support. One end of the inner support is fixedly connected to the moving end of the first rotary drive device, and the other end of the inner support is rotatably connected to the outer support. The first rotary drive device can drive the inner support to rotate. A second rotary drive device and a counterweight are mounted on the inner support. The vehicle body is fixedly mounted on the moving end of the second rotary drive device. The second rotary drive device can drive the vehicle body to rotate. The counterweight works in conjunction with the second rotary drive device to improve the balance of the inner support during rotation. The first shock absorber works in conjunction with the second shock absorber to improve the stability of the multi-axis driven testing vehicle.

2. The bone conduction headphone testing device according to claim 1, characterized in that: The testing equipment housing is also equipped with a barcode scanner. The carrier body is provided with a product placement position. The product placement position is provided with a product conforming seat, a product pressing component, and a label fixing component. The product pressing component is used to fix the bone conduction headphones in the product conforming seat. The label fixing component is used to fix the label strip of the bone conduction headphones. The barcode scanner can scan the label strip of the bone conduction headphones to realize the communication connection between the controller and the bone conduction headphones.

3. The bone conduction headphone testing device according to claim 2, characterized in that: The label fixing component includes a label fixing base and a vacuum suction connector. The label fixing base has a vacuum suction hole and a vacuum suction channel. The two ends of the vacuum suction channel are respectively connected to the vacuum suction hole and the vacuum suction connector. The vacuum suction hole can adsorb the label strip of the bone conduction headphones onto the label fixing base.

4. The bone conduction headphone testing device according to claim 2, characterized in that: There are four product placement positions, which are arranged in a grid pattern. A first electronic level is installed at the center of the main body of the vehicle, and a second electronic level is installed in each product placement position.

5. The bone conduction headphone testing device according to claim 1, characterized in that: A marble base plate is also provided between the multi-axis drive test vehicle and the first shock absorber. The marble base plate can improve the flatness of the installation of the multi-axis drive test vehicle while absorbing vibration energy.

6. The bone conduction headphone testing device according to claim 5, characterized in that: The first shock absorber is a rubber shock absorber pad, and there are four first shock absorbers, which are respectively set at the four corners of the marble base plate.

7. The bone conduction headphone testing device according to claim 1, characterized in that: The second shock absorber is an air-floating shock absorber, and there are four second shock absorbers, which are respectively set at the four corners of the support frame.

8. The bone conduction headphone testing device according to claim 1, characterized in that: The housing of the testing equipment is provided with a loading and unloading window, and a safety light curtain is provided on the side of the loading and unloading window. The safety light curtain is electrically connected to the controller.

9. The bone conduction headphone testing device according to any one of claims 1-8, characterized in that: The outer support is U-shaped, and a first rotation clearance position is provided on the outer support to cooperate with the inner support. The first rotation drive device is provided on one side of the first rotation clearance position of the outer support, and a rotation bearing is provided on the other side of the first rotation clearance position of the outer support. A connecting shaft is provided at one end of the inner support, and the connecting shaft is located in the rotation bearing.

10. The bone conduction headphone testing device according to claim 9, characterized in that: The inner support is also U-shaped, and the inner support is provided with a second rotation clearance position that cooperates with the main body of the vehicle. The second rotation drive device is located at the lower end of the inner support, and the balance counterweight is located at the upper end of the inner support.

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