Looped earphone and looped earphone layout detection device

Abstract

Embodiments of the present disclosure disclose a dynamic coil earphone and a layout detection device of the dynamic coil earphone. A specific embodiment of the dynamic coil earphone comprises a shell, a moving iron loudspeaker and a moving coil loudspeaker, wherein the shell is provided with a sound guide pipe; the moving iron loudspeaker is fixed in the sound guide pipe; the side surface of the moving iron loudspeaker is electrically connected to the mainboard of the dynamic coil earphone; the moving coil loudspeaker is fixed in the interior of the shell; the moving iron loudspeaker and the moving coil loudspeaker have a preset angle of intersection; the center of the moving iron loudspeaker and the center of the moving coil loudspeaker are horizontally spaced apart by a first preset length; the moving iron loudspeaker and the moving coil loudspeaker are spaced apart by a second preset length, wherein the second preset length is measured in a direction perpendicular to the end surface of the moving coil loudspeaker; and the end surface of the sound guide pipe and the center point of the end surface of the moving coil loudspeaker are spaced apart by a third preset length. The embodiment can improve the wearing experience of the user.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of headphone technology, specifically to hybrid driver headphones and a layout detection device for hybrid driver headphones. Background Technology

[0002] With technological advancements, TWS (True Wireless Stereo) earphone technology has also made significant progress. Currently, earphone manufacturers generally use a combination of dynamic and balanced armature drivers to improve sound quality. However, when using this method to improve sound quality, the following technical problems often arise:

[0003] Compared to traditional headphones with a single dynamic driver, the combination of a dynamic driver and a balanced armature driver requires a larger internal space to accommodate them. This increased internal space directly increases the overall size of the headphones, sacrificing wearing comfort and resulting in a poorer wearing experience.

[0004] The information disclosed in this background section is only intended to enhance the understanding of the background of the present disclosure concept, and therefore may contain information that does not form prior art known to those skilled in the art. Summary of the Invention

[0005] The summary portion of this disclosure is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description portion. This summary portion is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0006] Some embodiments of this disclosure provide a hybrid driver earphone and a layout detection device for hybrid driver earphones to solve one or more of the technical problems mentioned in the background section above.

[0007] In a first aspect, some embodiments of this disclosure provide a hybrid driver earphone, characterized in that the hybrid driver earphone includes a housing, a balanced armature speaker, and a dynamic driver, wherein the housing is provided with a sound guide tube; the balanced armature speaker is fixed inside the sound guide tube; the side of the balanced armature speaker is electrically connected to the main board of the hybrid driver earphone; the dynamic driver is fixed inside the housing; there is a preset angle between the balanced armature speaker and the dynamic driver; the center of the balanced armature speaker and the center of the dynamic driver are spaced apart by a first preset length in the horizontal direction; there is a second preset length between the balanced armature speaker and the dynamic driver, wherein the second preset length is measured in a direction perpendicular to the end face of the dynamic driver; and there is a third preset length between the end face of the sound guide tube and the center point of the end face of the dynamic driver.

[0008] Optionally, the aforementioned hybrid driver earphone includes a soft rubber sleeve that matches the contour of the aforementioned balanced armature speaker; the two opposite sides of the soft rubber sleeve have different heights; the soft rubber sleeve is fitted over the outside of the aforementioned balanced armature speaker; the soft rubber sleeve is installed inside the aforementioned sound tube; the aforementioned balanced armature speaker is electrically connected to the aforementioned mainboard from the lower side of the aforementioned soft rubber sleeve.

[0009] Optionally, the housing has a rear cavity sealing cover inside, which is a wall-like structure connected to the housing; the moving coil speaker is installed below the rear cavity sealing cover.

[0010] Optionally, the aforementioned hybrid driver earphone also includes a dustproof mesh installed at the port of the sound guide tube; the dustproof mesh is configured to prevent debris from entering the interior of the housing from the sound guide tube.

[0011] Optionally, the length of the aforementioned moving iron speaker is greater than the length of the aforementioned sound tube; the length of the aforementioned moving iron speaker is greater than the height of the aforementioned soft rubber sleeve.

[0012] Optionally, the aforementioned hybrid driver earphone also includes a power supply, and the power supply is electrically connected to the aforementioned motherboard; the power supply is fixed above the aforementioned rear cavity sealing cover.

[0013] Optionally, the aforementioned dynamic speaker is electrically connected to the aforementioned motherboard.

[0014] Optionally, the aforementioned hybrid driver earphone includes a soft rubber plug, and the outer edge of the port of the sound tube is provided with a protrusion; the soft rubber plug is configured to fit onto the protrusion.

[0015] Optionally, the housing includes a support shell and a cover, wherein the moving coil speaker and the moving iron speaker are fixed inside the support shell; the sound guide tube is disposed on the support shell; and the cover is installed on the support shell.

[0016] Secondly, some embodiments of this disclosure provide a layout detection device for hybrid driver earphones, characterized in that the layout detection device includes a support component, a processing unit, an imaging component, and a clamping component, wherein the hybrid driver earphone is the hybrid driver earphone described in any implementation of the first aspect above, and the hybrid driver earphone is not fitted with a cover; the imaging component is located above the support component; the support component has a groove matching the outer contour of the hybrid driver earphone; the groove is configured to allow the interior of the hybrid driver earphone to face the imaging component; the processing unit is communicatively connected to the imaging component; the imaging component is configured to capture the internal layout of the hybrid driver earphone; the processing unit is configured to process the image captured by the imaging component; the processing unit is communicatively connected to the clamping component; the processing unit is configured to control the clamping component to clamp the hybrid driver earphone.

[0017] Some embodiments of this disclosure provide a hybrid driver earphone that can improve the user's wearing experience. Specifically, the reason why most earphones using a combination of dynamic and balanced armature speakers have a poor wearing experience is that the combination of dynamic and balanced armature speakers requires a larger internal space in the earphone to accommodate them. Increasing the internal space of the earphone directly increases its size, which sacrifices the wearing experience. Based on this, some embodiments of this disclosure provide a hybrid driver earphone, which includes a housing, a balanced armature speaker, and a dynamic driver. The housing is provided with a sound guide tube; the balanced armature speaker is fixed inside the sound guide tube; the side of the balanced armature speaker is electrically connected to the main board of the hybrid driver earphone; the dynamic driver is fixed inside the housing; there is a preset angle between the balanced armature speaker and the dynamic driver; the center of the balanced armature speaker and the center of the dynamic driver are horizontally spaced by a first preset length; there is a second preset length between the balanced armature speaker and the dynamic driver, wherein the second preset length is measured in a direction perpendicular to the end face of the dynamic driver; and there is a third preset length between the end face of the sound guide tube and the center point of the end face of the dynamic driver. Because there is a preset angle between the balanced armature speaker and the dynamic driver; the center of the balanced armature speaker and the center of the dynamic driver are horizontally spaced by a first preset length; the balanced armature speaker and the dynamic driver are spaced by a second preset length; and there is a third preset length between the end face of the sound tube and the center point of the end face of the dynamic driver. By mounting the balanced armature speaker in the sound tube and electrically connecting it to the main board from the side, the balanced armature speaker and the dynamic driver are positioned according to the aforementioned angle, the first preset length, and the second preset length. This allows for a smaller footprint for both the dynamic and balanced armature speakers while maintaining the sound quality of the headphones. Consequently, the size of the headphones can be reduced, improving the wearing experience. Attached Figure Description

[0018] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. Throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and elements are not necessarily drawn to scale.

[0019] Figure 1 This is a partial cross-sectional view of a hybrid driver earphone according to some embodiments of this disclosure;

[0020] Figure 2 These are schematic diagrams of the structure of hybrid driver earphones according to some embodiments of this disclosure;

[0021] Figure 3This is a schematic diagram of the layout detection device for hybrid driver earphones according to some embodiments of the present disclosure;

[0022] Figure 4 This is a flowchart illustrating some embodiments of the layout detection device for hybrid driver earphones disclosed herein, used for layout detection of hybrid driver earphones. Detailed Implementation

[0023] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0024] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0025] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0026] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0027] The names of messages or information exchanged between multiple devices in the embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.

[0028] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] Figure 1 This is a partial cross-sectional view of a hybrid driver earphone according to some embodiments of the present disclosure. Figure 1 Includes a balanced iron speaker 1, a sound tube 2, a dynamic coil speaker 3, a housing 4, a soft rubber sleeve 5, a rear cavity sealing cover 6, a dustproof mesh 7, a power supply 8, and a mainboard 9.

[0030] Figure 2 This is a schematic diagram of the structure of a hybrid driver earphone according to some embodiments of this disclosure. Figure 2 Includes a supporting shell 10 and a cover 11.

[0031] In some embodiments, the aforementioned hybrid driver earphones may include a housing 4, a balanced armature speaker 1, and a dynamic driver 3. The housing 4 can be used to enclose the balanced armature speaker 1 and the dynamic driver 3. The structure of the housing 4 can be designed according to the physiological structure of the human ear canal, such as using a curve that conforms to the curvature of the human ear canal, to ensure comfort and stability during wear. The specific structure of the housing 4 is not specifically limited here. The balanced armature speaker 1 and the dynamic driver 3 can serve as the sound-producing units of the aforementioned hybrid driver earphones, used for audio output. Using the balanced armature speaker 1 and the dynamic driver 3 as sound-producing units allows the hybrid driver earphones to have a wider frequency response range, enabling more comprehensive reproduction of musical details. This is because the dynamic driver 3 performs excellently in low frequencies, providing deep, full bass, making low-frequency elements such as drums and bass in music more powerful and rhythmic. The aforementioned balanced armature speaker 1 excels in high and mid frequencies. The high frequencies are bright and clear with good extension, making the high-pitched parts of string and wind instruments in music crisper and more pleasant. The mid-range vocals are clear and natural, with rich emotional expression.

[0032] In some embodiments, the housing 4 may be provided with a sound guide tube 2. The sound guide tube 2 may be a cylindrical tubular structure disposed on the housing 4. There is no specific limitation on whether the sound guide tube 2 is cylindrical. The sound guide tube 2 can accurately guide the sound generated by the headphone driver unit into the ear canal, ensuring effective sound transmission and reducing sound loss and distortion during transmission. Furthermore, by adjusting parameters such as the length, diameter, and shape of the sound guide tube 2, the frequency response of the headphones can be fine-tuned. For example, a longer sound guide tube 2 may enhance the low-frequency response, making the bass fuller; while a shorter sound guide tube 2 may emphasize the high frequencies, making the sound brighter. There is no specific limitation on the specific length of the sound guide tube 2. The sound guide tube 2 can be used to fix the balanced armature speaker 1. A specific method of fixing it may be to cover the outer ring of the balanced armature speaker 1 with a protective sleeve made of soft rubber to increase the outer diameter of the balanced armature speaker 1. The aforementioned balanced armature speaker 1, covered with a protective sleeve, is then press-fitted against the inner wall of the aforementioned sound guide tube 2 to achieve the purpose of mounting the balanced armature speaker 1 onto the aforementioned sound guide tube 2. Fixing the aforementioned balanced armature speaker 1 to the aforementioned sound guide tube 2 can save internal space in the aforementioned hybrid driver earphone.

[0033] In some embodiments, the aforementioned balanced armature speaker 1 can be fixed inside the aforementioned sound guide tube 2. The reason for fixing the balanced armature speaker 1 inside the sound guide tube 2 is that the balanced armature speaker 1 is generally small in size, and the aforementioned sound guide tube 2 can accommodate the balanced armature speaker 1. The advantage of fixing the balanced armature speaker 1 inside the aforementioned sound guide tube 2 is that it makes full use of the space inside the aforementioned sound guide tube 2, improving the utilization rate of the internal space of the aforementioned hybrid driver earphone.

[0034] In some embodiments, the balanced armature speaker 1 can be connected to the mainboard 9 of the hybrid driver earphone via a side cable. Since the dynamic driver 3 is located on top of the balanced armature speaker 1 inside the hybrid driver earphone, side cable routing avoids wires running between the balanced armature speaker 1 and the dynamic driver 3, making it possible to further reduce the distance and angle between them. Reducing the distance and angle between the dynamic driver 3 and the balanced armature speaker 1 allows for a more compact and rational arrangement of the two speakers, making more efficient use of the internal space of the earphone, and also helps to reduce the size of the earphone, making it lighter, smaller, and more comfortable to wear. Furthermore, reducing the distance and angle between the dynamic driver 3 and the balanced armature speaker 1 changes the time difference and phase difference between the sounds emitted by the two speakers reaching the ear, which can improve the stereo and spatial effects of the sound. When listening to surround sound in movies or playing 3D audio games, this change makes the experience more immersive and allows for more accurate judgment of the sound source direction. The mainboard 9 can be an integrated circuit board. The mainboard 9 can serve as the core processing component of the hybrid driver earphone. The aforementioned motherboard 9 can be used to implement one or more of the following functions: Bluetooth pairing and connection, audio data transmission, audio processing, sound effect optimization, power management, power consumption control, function control, button and touch control, microphone and call functions, sound acquisition and processing, echo cancellation and noise reduction. It should be noted that the functions listed here are for illustrative purposes only and do not represent a limitation on the functions that the aforementioned motherboard 9 can perform.

[0035] In some embodiments, the moving-coil speaker 3 can be fixed inside the housing 4. The moving-coil speaker 3 can be fixed inside the housing 4 by applying adhesive. No specific limitation is made here regarding the specific fixing method of the moving-coil speaker 3.

[0036] In some embodiments, the balanced armature speaker 1 and the dynamic driver 3 may have a preset angle between them. This preset angle can be 11°. The reason for setting the preset angle to 11° is that the smaller the preset angle, the more severe the influence of the magnetic field of the dynamic driver 3 on the frequency response curve of the balanced armature speaker 1. Specifically, the frequency response curve of the balanced armature speaker 1 exhibits a decaying trend. If the frequency response curve decays at certain frequencies, it may weaken the sound signal within that frequency range, thus affecting the sound quality. For example, excessive decay in the high-frequency range will make the sound muffled and lacking in detail; excessive decay in the low-frequency range will result in poor bass performance, weakening the rhythm and atmosphere of the music. However, if the preset angle is set too large, it will lead to an excessively large hybrid driver earphone, thus reducing the user's wearing experience. Setting the preset angle to 11° ensures that the influence of the magnetic field of the dynamic driver 3 on the frequency response curve of the balanced armature speaker 1 is within a reasonable range, without making the hybrid driver earphone too large. The criteria for judging the above reasonable range can be that the low frequency output of the aforementioned hybrid driver earphones is between 60Hz and 100Hz, the mid frequency is between 1kHz and 200Hz, and the high frequency is between 3kHz and 6kHz. Since different users have different standards for judging sound quality, the above criteria are for reference only.

[0037] In some embodiments, the center of the balanced armature speaker 1 and the center of the dynamic driver 3 may be horizontally spaced by a first preset length. The center of the balanced armature speaker 1 may be the center of one end face of the balanced armature speaker 1, and the end face is close to the dynamic driver 3. The center of the dynamic driver 3 may be the center of one end face of the dynamic driver 3, and the end face is close to the balanced armature speaker 1. The first preset length may be 2.6 mm. The reason for setting the first preset length to 2.6 mm is to ensure that the influence of the magnetic field of the dynamic driver 3 on the frequency response curve of the balanced armature speaker 1 is within the reasonable range, while also preventing the hybrid driver earphone from becoming too large.

[0038] In some embodiments, a second preset length may be spaced between the balanced armature speaker 1 and the dynamic driver 3. This second preset length can be measured in a direction perpendicular to the end face of the dynamic driver 3, where the end face is the side closest to the balanced armature speaker 1. The second preset length can be 0.5 mm. The reason for setting the second preset length to 0.5 mm is to ensure that the influence of the magnetic field of the dynamic driver 3 on the frequency response curve of the balanced armature speaker 1 is within a reasonable range, while also preventing the hybrid driver earphone from becoming excessively large.

[0039] In some embodiments, the end face of the sound guide tube 2 may have a third preset length between it and the center point of the end face of the dynamic speaker 3. The center point of the end face may be the center point of the end face of the dynamic speaker 3 near the center point of the balanced armature speaker 1. The third preset length may be 5.9 mm. The reason for setting the third preset length to 5.9 mm is to ensure that the influence of the magnetic field of the dynamic speaker 3 on the frequency response curve of the balanced armature speaker 1 is within the reasonable range, while also preventing the hybrid driver earphone from becoming too large.

[0040] Optionally, such as Figure 1 As shown, the aforementioned hybrid driver earphone may include a soft rubber sleeve 5. The soft rubber sleeve 5 can match the contour of the aforementioned balanced armature speaker 1. The soft rubber sleeve 5 can be used to cover the outside of the aforementioned balanced armature speaker 1, and its function is to provide cushioning for the balanced armature speaker 1 when the aforementioned hybrid driver earphone is dropped, to prevent damage to the balanced armature speaker 1. The material of the soft rubber sleeve 5 may include, but is not limited to, one or more of the following materials: polyurethane (PU), thermoplastic polyurethane elastomer rubber (TPU), and silicone. Since the aforementioned balanced armature speaker 1 connects to the aforementioned mainboard 9 from the side, the height of the soft rubber sleeve 5 on both sides can be different, with the balanced armature speaker 1 exiting from the lower side of the soft rubber sleeve 5. The side exit of the balanced armature speaker 1 allows for top space, creating conditions for reducing the angle between the balanced armature speaker 1 and the aforementioned dynamic driver 3. The soft rubber sleeve 5, encasing the balanced armature speaker 1, can be installed inside the aforementioned sound tube 2 to provide a certain degree of securing force to the balanced armature speaker 1. Alternatively, the moving iron speaker 1 can be glued to the housing 4 on the side near the end face of the sound tube 2 to achieve a better fixing effect.

[0041] Optionally, such as Figure 1 As shown, the interior of the housing 4 may be provided with a rear cavity sealing cover 6. The rear cavity sealing cover 6 may be a wall-like structure connected to the housing 4. The moving coil speaker 3 may be installed below the rear cavity sealing cover 6. The rear cavity sealing cover 6 can isolate components other than the moving coil speaker 3 and the moving iron speaker 1, forming a chamber containing only the moving coil speaker 3 and the moving iron speaker 1. The advantage of installing the moving coil speaker 3 and the moving iron speaker 1 in the same chamber is that the same chamber allows the moving coil speaker 3 and the moving iron speaker 1 to be close together, resulting in a shorter sound propagation path. This effectively reduces sound delay and phase difference, making the transition between different frequency bands more natural and smooth, and avoiding sound disconnection or incoordination.

[0042] Optionally, such as Figure 1As shown, the aforementioned hybrid driver earphone can also have a dustproof mesh 7. The dustproof mesh 7 can be installed at the port of the sound guide tube 2. The dustproof mesh 7 can be used to prevent debris from entering the interior of the housing 4 from the sound guide tube 2, thereby preventing debris from damaging the parts contained inside the housing 4.

[0043] Optionally, such as Figure 1 As shown, the length of the aforementioned balanced armature speaker 1 can be greater than the length of the aforementioned sound guide tube 2. The length of the aforementioned balanced armature speaker 1 can also be greater than the height of the aforementioned soft rubber sleeve 5. When the length of the aforementioned balanced armature speaker 1 is greater than the length of the aforementioned sound guide tube 2, the aforementioned sound guide tube 2 can still fix the aforementioned balanced armature speaker 1. At the same time, the length of the aforementioned sound guide tube 2 can be shortened, thereby reducing the overall volume of the aforementioned hybrid driver earphone. The aforementioned soft rubber sleeve 5, as a protective device for the aforementioned balanced armature speaker 1, can be fitted only onto the part of the aforementioned balanced armature speaker 1 that enters the aforementioned sound guide tube 2, still serving the function of protecting the aforementioned balanced armature speaker 1. When the height of the aforementioned soft rubber sleeve 5 is less than the length of the aforementioned balanced armature speaker 1, it can both provide protection for the aforementioned balanced armature speaker 1 and reduce the production cost of the aforementioned soft rubber sleeve 5.

[0044] Optionally, such as Figure 1 As shown, the aforementioned hybrid driver earphone may also include a power supply 8. The power supply 8 can be electrically connected to the mainboard 9. This electrical connection can be made using wires, and is not specifically limited here. The power supply 8 can supply power to the aforementioned hybrid driver earphone to ensure its normal operation. The power supply 8 can be fixed above the rear cavity sealing cover 6. Below the rear cavity sealing cover 6 is the aforementioned dynamic driver speaker 3. The reason for separating the power supply 8 and the dynamic driver speaker 3 with the rear cavity sealing cover 6 is that the power supply 8 generates certain electromagnetic signals during operation. Separating the power supply 8 and the dynamic driver speaker 3 with the rear cavity sealing cover 6 can effectively reduce the electromagnetic interference of the power supply 8 on the audio signal, thereby improving the purity and stability of the sound quality and avoiding problems such as noise or distortion.

[0045] Optionally, the dynamic speaker 3 can be electrically connected to the motherboard 9. This electrical connection can be achieved using wires. The electrical connection between the dynamic speaker 3 and the motherboard 9 enables audio data transmission between them, and also allows the motherboard 9 to directly perform audio optimization processing on the dynamic speaker 3.

[0046] Optionally, the aforementioned hybrid driver earphone may include soft rubber tips. It should be noted that these soft rubber tips are not shown in the accompanying drawings. The soft rubber tips may be made of silicone and have a sound outlet in the center. Figure 1The outer edge of the port of the sound guide tube 2 shown above may have a protrusion. This protrusion may be arranged around the entire circumference of the port. No specific limitation is made here. The soft rubber plug may be fitted onto the protrusion at the port of the sound guide tube 2. This soft rubber plug can improve wearing comfort, enhance sound insulation, and reduce sound leakage.

[0047] Optionally, such as Figure 1-2 As shown, the aforementioned housing 4 may include a carrier shell 10 and a cover 11. The dynamic speaker 3 and the balanced armature speaker 1 are fixed to the carrier shell 10; therefore, the size of the carrier shell 10 needs to accommodate the dynamic speaker 3 and the balanced armature speaker 1. The carrier shell 10 may be ergonomically designed, with an overall shape conforming to the natural curves of the auricle and ear canal, such as a teardrop or elliptical design. The sound guide tube 2 may be mounted on the carrier shell 10 to install the balanced armature speaker 1. The cover 11, after the dynamic speaker 3 and the balanced armature speaker 1 are installed in the carrier shell 10, is used to cover the dynamic speaker 3 and the balanced armature speaker 1, thus sealing the carrier shell 10. The carrier shell 10 and the cover 11 may be fixed by a snap-fit ​​mechanism. For waterproofing purposes, adhesive may be used to fix the carrier shell 10 and the cover 11.

[0048] Some embodiments of this disclosure provide a hybrid driver earphone that can improve the user's wearing experience. Specifically, the reason why most earphones using a combination of dynamic and balanced armature speakers have a poor wearing experience is that the combination of dynamic and balanced armature speakers requires a larger internal space in the earphone to accommodate them. Increasing the internal space of the earphone directly increases its size, which sacrifices the wearing experience. Based on this, some embodiments of this disclosure provide a hybrid driver earphone, which includes a housing, a balanced armature speaker, and a dynamic driver. The housing is provided with a sound guide tube; the balanced armature speaker is fixed inside the sound guide tube; the side of the balanced armature speaker is electrically connected to the main board of the hybrid driver earphone; the dynamic driver is fixed inside the housing; there is a preset angle between the balanced armature speaker and the dynamic driver; the center of the balanced armature speaker and the center of the dynamic driver are horizontally spaced by a first preset length; there is a second preset length between the balanced armature speaker and the dynamic driver, wherein the second preset length is measured in a direction perpendicular to the end face of the dynamic driver; and there is a third preset length between the end face of the sound guide tube and the center point of the end face of the dynamic driver. Because there is a preset angle between the balanced armature speaker and the dynamic driver; the center of the balanced armature speaker and the center of the dynamic driver are horizontally spaced by a first preset length; the balanced armature speaker and the dynamic driver are spaced by a second preset length; and there is a third preset length between the end face of the sound tube and the center point of the end face of the dynamic driver. By mounting the balanced armature speaker in the sound tube and electrically connecting it to the main board from the side, the balanced armature speaker and the dynamic driver are positioned according to the aforementioned angle, the first preset length, and the second preset length. This allows for a smaller footprint for both the dynamic and balanced armature speakers while maintaining the sound quality of the headphones. Consequently, the size of the headphones can be reduced, improving the wearing experience.

[0049] Figure 3 This is a schematic diagram of the layout detection device for hybrid driver earphones according to some embodiments of the present disclosure. Figure 3 It includes a carrier component 12, a processing unit 13, a shooting component 14, and a clamping component 15.

[0050] In some embodiments, the layout detection device for the hybrid driver earphones described above may include a support assembly 12, a processing unit 13, an imaging assembly 14, and a clamping assembly 15. The hybrid driver earphones described above may be as follows: Figure 1 and Figure 2The corresponding embodiments describe hybrid driver earphones. The layout detection device for the aforementioned hybrid driver earphones can be used to detect the positional relationship between the dynamic driver and the balanced armature driver inside the aforementioned hybrid driver earphones. The significance of detecting the positional relationship between the dynamic driver and the balanced armature driver is that it can ensure the sound quality of the hybrid driver earphones. Dynamic drivers and balanced armature drivers have different characteristics in terms of sound production principle and frequency response. Dynamic drivers have good low-frequency performance; balanced armature drivers have clear high frequencies and strong resolution. Only when the positional relationship between the two is reasonable can the sound transition smoothly between different frequency bands, achieve good sound fusion and connection, avoid problems such as sound gaps and uneven frequency response, thereby improving the overall sound quality. The aforementioned imaging component 14 can be located above the aforementioned support component 12. The aforementioned imaging component 14 can be an industrial camera with sufficient precision. For example, to detect defects at the 0.1 mm level, an industrial camera with megapixels to 10 million pixels is required. The lens of the aforementioned imaging component 14 can be directly facing the aforementioned support component 12 so as to be able to see the aforementioned support component 12 directly, thereby ensuring the accuracy of the photograph. The aforementioned support component 12 may have a groove that matches the outer contour of the aforementioned hybrid driver earphone. By setting the groove to match the outer contour of the aforementioned hybrid driver earphone, when the earphone is placed in the groove during the detection of its internal layout, the earphone will face the imaging component 14 at a fixed angle, allowing the imaging component 14 to more accurately capture the internal layout of the earphone. It should be noted that the support component 12 can be a table or other object capable of supporting the earphone; no specific limitation is made here. During layout detection, the earphone is not covered, thus exposing its internal layout. The aforementioned processing unit 13 may include a smart device (e.g., a laptop computer) with image processing and analysis capabilities. The processing unit 13 can communicate with the imaging component 14. The processing unit 13 can control the imaging component 14 to take pictures, and can receive the images captured by the imaging component 14, and process the images to detect whether the internal layout of the earphone corresponding to the image is acceptable. The processing unit 13 can be communicatively connected to the clamping assembly 15. The processing unit 13 can control the clamping assembly 15 to clamp the hybrid driver earphone.

[0051] Optionally, the layout detection device for the aforementioned hybrid driver earphones may include the aforementioned hybrid driver earphones.

[0052] Further reference Figure 4 , Figure 4 The flowchart 100 illustrates some embodiments of the layout detection apparatus for hybrid driver headphones according to this disclosure, performing layout detection for hybrid driver headphones. The layout detection apparatus for hybrid driver headphones can implement the following steps:

[0053] Step 101: In response to the detection request information of the corresponding hybrid driver earphone, control the clamping component to place the hybrid driver earphone into the groove.

[0054] In some embodiments, in response to detecting a detection request for a corresponding hybrid driver earphone, the execution body (e.g., a computing device) of the hybrid driver earphone layout detection device can control a gripping assembly (e.g., an industrial robot with a gripper) to place the hybrid driver earphone into the groove. The hybrid driver earphone can be... Figure 1-2 The described hybrid driver earphones are without a cover. The aforementioned detection request information can be information representing a user clicking a control used for layout detection of the hybrid driver earphones. In practice, the aforementioned execution entity can control the aforementioned gripping component to grip the hybrid driver earphones into the groove according to preset gripping path parameters via wireless signal transmission. The aforementioned gripping path parameters can be obtained by online programming of the gripping component using a teach pendant, or by offline programming of the gripping component using a computer. For example, when the gripping component is an industrial robot, the aforementioned gripping path parameters can be obtained by online programming of the industrial robot using a teach pendant, or by online programming of the industrial robot using a computer.

[0055] In some alternative implementations of certain embodiments, the aforementioned execution entity may also control the aforementioned clamping component to place the hybrid driver earphone into the groove via wired signal transmission.

[0056] Step 102: In response to detecting that the hybrid driver earphone has been placed in the groove, control the imaging component to acquire the image information of the hybrid driver earphone as the target image information.

[0057] In some embodiments, in response to detecting that the hybrid driver earphones are placed in the groove, the executing entity can control the capturing component to acquire image information of the hybrid driver earphones as target image information. The target image information can be a photograph captured by the capturing component that shows the internal layout of the hybrid driver earphones. In practice, the executing entity can establish a communication connection with the capturing component. A sensor can be provided in the groove, and the sensor can establish a communication connection with the executing entity. The sensor can be an infrared sensor or a weight sensor. In response to the sensor sensing that the hybrid driver earphones are clamped in the groove, the sensor can send an earphone positioning signal to the executing entity. In response to receiving the earphone positioning signal, the executing entity sends a photographing command to the capturing component. In response to receiving the photographing command, the capturing component takes a photograph. In response to completing the photographing, the capturing component sends the photograph to the executing entity. In response to receiving the photograph, the executing entity determines the photograph as the target image information.

[0058] Step 103: Based on the target image information, perform detection processing on the hybrid driver earphone to obtain detection result information.

[0059] In some embodiments, the execution entity can perform detection processing on the hybrid driver earphone based on the target image information to obtain detection result information. The detection result information may include information characterizing whether the internal layout of the hybrid driver earphone is acceptable. In practice, the execution entity can collect a large amount of earphone image data with different layouts, including acceptable and unacceptable samples, to construct a deep learning model, such as a convolutional neural network (CNN). By training these sample images, the model learns the features and patterns of earphone layout, thereby automatically identifying and judging whether the layout of the hybrid driver earphone corresponding to the target image information is acceptable, and obtaining detection result information. However, the above method requires a large amount of high-quality labeled data for training, and the data collection and labeling work is relatively cumbersome.

[0060] In some optional implementations of certain embodiments, the aforementioned execution entity can perform detection processing on the hybrid driver earphone based on the target image information through the following steps to obtain detection result information:

[0061] The first step is to perform grayscale processing on the target image information to obtain a grayscale image. This grayscale processing converts the color image to a grayscale image, reducing data volume, improving subsequent processing speed, and preserving the image's main information. In practice, the execution entity can use the `cv2.cvtColor` function from the OpenCV library to convert the color image from the RGB color space to the grayscale space, thus obtaining a grayscale image.

[0062] The second step is to filter the grayscale image to obtain a smoothed image. This filtering process removes noise from the image, such as salt-and-pepper noise and Gaussian noise, making the image smoother and facilitating subsequent steps. In practice, the execution unit can use Gaussian filtering to remove Gaussian noise from the image to obtain a smoothed image.

[0063] The third step involves edge detection on the smoothed image to obtain primary headphone contour information. This primary headphone contour information includes the coordinates of each point on all contours obtained through edge detection, and these coordinates are stored in a list. For example, a rectangular contour with four vertices at coordinates (1,1), (1,5), (5,5), and (5,1) can be stored as a list containing these four coordinate pairs: [(1,1), (1,5), (5,5), (5,1)]. This edge detection can detect the edge contours of the internal components of the hybrid headphone in the smoothed image. In practice, the execution entity can use the Canny edge detection algorithm to detect the edge contours of the internal components of the hybrid headphone in the smoothed image. The execution entity can also adjust the parameters of the Canny edge detection algorithm (such as the threshold) to ensure accurate detection of the edges of each headphone component while minimizing false positives and false negatives.

[0064] The fourth step involves filtering the primary headphone contour information to obtain secondary headphone contour information. This filtering process removes background and irrelevant contours, retaining only the contours of the components to be detected within the hybrid driver headphone. In practice, the execution entity can filter based on the area characteristics of the components to be detected in the hybrid driver headphone. Taking the acquisition of the shell contour information as an example, the `cv2.contourArea` function can be used to calculate the area of ​​each contour (its underlying logic can be to use the Gaussian area formula combined with the coordinate list corresponding to the contour lines to calculate the area of ​​a polygon containing multiple vertices). The threshold for the shell contour area of ​​the hybrid driver headphone is set between 5000 and 10000 pixels; contours whose area meets this threshold can be identified as shell contours. The methods for acquiring the contour information of the dynamic driver speaker and the balanced armature speaker are similar to those for acquiring the shell contour information, only the thresholds need to be changed. This yields the secondary headphone contour information.

[0065] The fifth step involves segmenting the secondary headphone contour information into individual components: the housing, the dynamic speaker, and the balanced armature speaker. This segmentation process divides the secondary headphone contour information into these components to facilitate subsequent feature extraction. The housing's individual component contour information includes a list of coordinates of the vertices within its binarized contour. The dynamic speaker's individual component contour information and the balanced armature speaker's individual component contour information each include a list of coordinates of the vertices within their respective contours. In practice, the execution entity can employ a threshold-based segmentation method for the secondary headphone contour information. For example, using the housing's contour information, the circumscribed rectangle is first calculated to obtain the rectangular region. Then, the Otsu method is used to automatically calculate the threshold, and the region is binarized to obtain the individual component contour information of the housing. The single component outline information of the aforementioned moving coil speaker and the single component outline information of the aforementioned moving iron speaker are further located and divided within the already segmented outer shell area based on the relative positional relationship between the moving coil speaker, the moving iron speaker and the shell.

[0066] Step 6: Perform feature extraction processing on the single-component contour information of the aforementioned housing, the single-component contour information of the aforementioned moving-coil speaker, and the single-component contour information of the aforementioned balanced-armature speaker, respectively, to obtain the geometric features of the aforementioned housing, the aforementioned moving-coil speaker, and the aforementioned balanced-armature speaker. These geometric features include shape (circle, rectangle, etc.), size (length, width, diameter, etc.), position (center coordinates, relative position, etc.), and angle (angle between components, etc.). In practice, taking the process of obtaining the geometric features of the aforementioned housing as an example, the executing entity can use the cv2.minAreaRect function to obtain the minimum bounding rectangle of the housing, thereby obtaining information such as the length, width, and rotation angle of the housing. The method for obtaining the geometric features of the aforementioned moving-coil speaker and the aforementioned balanced-armature speaker is the same as the process for obtaining the geometric features of the aforementioned housing, and will not be repeated here.

[0067] Step 7: Based on the extracted geometric features of the housing, the moving-coil speaker, and the balanced-armature speaker, relative position information of the components is generated. This relative position information may include: the angle between the moving-coil speaker and the balanced-armature speaker, and the perpendicular distance between the balanced-armature speaker and the moving-coil speaker. In practice, the executing entity can calculate the angle between the moving-coil speaker and the balanced-armature speaker using trigonometric functions, and can calculate the perpendicular distance between the balanced-armature speaker and the moving-coil speaker using the Euclidean distance formula by obtaining the center coordinates of the moving-coil speaker and the balanced-armature speaker. Thus, the executing entity can generate relative position information of the components.

[0068] Step 8: Compare the relative position information of the components with preset acceptable information to obtain the test result information. This test result information may include information indicating that the layout of the hybrid driver earphone is unacceptable or that the layout of the hybrid driver earphone is acceptable. In practice, the executing entity can set preset acceptable information, which may include preset values ​​for the angle between the dynamic driver and the balanced armature driver and the perpendicular distance between the balanced armature driver and the dynamic driver. The preset value for the angle between the dynamic driver and the balanced armature driver can be 11°, and the preset value for the perpendicular distance between the balanced armature driver and the dynamic driver can be 0.5mm. The executing entity can compare the relative position information of the components with the preset acceptable information. If any item in the relative position information of the components differs from the preset acceptable information, information indicating that the layout of the hybrid driver earphone is unacceptable is output; if every item in the relative position information of the components is the same as the preset acceptable information, information indicating that the layout of the hybrid driver earphone is acceptable is output. Thus, the test result information is obtained.

[0069] Steps one through eight above, as an inventive point of this disclosure, solve the technical problem of "not being able to obtain the specific error value of the unqualified layout when judging that the layout of a hybrid driver earphone is unqualified." The specific factors causing this inability to obtain the specific error value of the unqualified layout when judging that the layout of a hybrid driver earphone is unqualified are as follows: Currently, deep learning models are commonly used to determine whether the layout of a hybrid driver earphone is qualified, and the labeling method of the training data directly affects the model's output. If, during the data labeling process, only whether the layout is qualified is labeled, without providing information about the specific error value of the unqualified layout, then the model will not learn the relevant features of the error value during training, and naturally cannot output a specific error value. Furthermore, even if some data is labeled with error values, if the types and error situations of unqualified layouts in the dataset are not rich and diverse enough, the model will find it difficult to learn the mapping relationship between various error situations and layout features, resulting in an inability to accurately judge the error value. Solving the above factors will achieve the effect of obtaining the specific error value of the unqualified layout. The inability to obtain the specific error value of the unqualified layout will cause inconvenience to subsequent recovery and adjustment work. Having specific error values ​​for defective layouts allows staff responsible for adjusting defective headphones to quickly identify which part is faulty and how much angle or length needs adjustment, significantly reducing the difficulty of the adjustment work. To achieve this, this disclosure also provides a detection method. This method involves acquiring headphone images, converting the color images to grayscale to reduce data volume, and then removing image noise. The Canny edge detection algorithm is used to obtain the edge contours of the headphone components, filtering out valid contours based on features such as shape and area. Then, a threshold-based segmentation method is used to segment each component from the image. Most importantly, it can extract the geometric features of each component of the hybrid driver headphone, such as shape, size, position, and angle. The relative positional relationships between components, such as distance and angle, are calculated based on the extracted geometric features. Therefore, it avoids labeling large amounts of training data; instead, the geometric features of the components are directly extracted from the photographed images, allowing for simple calculations to determine the specific error value of the defective layout.

[0070] Some embodiments of this disclosure provide a layout detection device for hybrid driver earphones, which can improve detection accuracy. Specifically, the reason for the poor detection accuracy of the hybrid driver earphone layout detection device is that photographic detection of the hybrid driver earphone layout requires taking pictures at a fixed angle each time. Currently, it is common to use a specific clamp to hold the hybrid driver earphone. However, the clamp will loosen over time, causing unstable positioning of the hybrid driver earphone, thereby reducing detection accuracy. Based on this, some embodiments of this disclosure provide a layout detection device for hybrid driver earphones. This device includes a support component, a processing unit, an imaging component, and a clamping component. The hybrid driver earphone is the type described in the first aspect above, and it is not fitted with a cover. The imaging component is located above the support component. The support component has a groove that matches the outer contour of the hybrid driver earphone. The groove is configured to allow the interior of the hybrid driver earphone to face the imaging component. The processing unit is communicatively connected to the imaging component. The imaging component is configured to capture the internal layout of the hybrid driver earphone. The processing unit is configured to process the image captured by the imaging component. The processing unit is communicatively connected to the clamping component and configured to control the clamping component to clamp the hybrid driver earphone. The support component of the hybrid driver earphone layout detection device has a groove that matches the outer contour of the hybrid driver earphone. When the clamping assembly places the hybrid driver earphone into the groove, the earphone will automatically conform to the groove due to gravity, thus ensuring that the earphone faces the imaging component at the same angle every time it is placed. This improves detection accuracy.

[0071] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A ferrite earpiece layout detection apparatus, characterized by comprising: The layout detection device of the dynamic coil earphone comprises a bearing assembly, a processing unit, a shooting assembly and a clamping assembly, the dynamic coil earphone comprises a shell, a soft rubber sleeve, a power supply, a moving iron loudspeaker and a moving coil loudspeaker, and the dynamic coil earphone is not installed with a cover, the inside of the shell is provided with a rear cavity sealing cover, wherein The shell is provided with a sound guide pipe; The moving iron loudspeaker is fixed in the sound guide pipe, the outer ring of the moving iron loudspeaker is sleeved with a soft rubber sleeve made of soft rubber material, and the moving iron loudspeaker sleeved with the soft rubber sleeve is in interference fit with the inner wall of the sound guide pipe; The side surface of the moving iron loudspeaker is electrically connected to the mainboard of the dynamic coil earphone; The moving coil loudspeaker is fixed in the inside of the shell; The power supply is electrically connected to the mainboard; The power supply is fixed above the rear cavity sealing cover; The soft rubber sleeve matches the contour of the moving iron loudspeaker; The opposite sides of the soft rubber sleeve are different in height; The soft rubber sleeve is sleeved on the outside of the moving iron loudspeaker; The soft rubber sleeve is installed in the inside of the sound guide pipe; The moving iron loudspeaker is electrically connected to the mainboard from the lower side of the soft rubber sleeve; There is a preset angle between the moving iron loudspeaker and the moving coil loudspeaker, wherein the preset angle is 11°; The center of the moving iron loudspeaker and the center of the moving coil loudspeaker are spaced apart by a first preset length in the horizontal direction, wherein the center of the moving iron loudspeaker is the center of one end surface of the moving iron loudspeaker, and the end surface is close to the moving coil loudspeaker, the center of the moving coil loudspeaker is the center of one end surface of the moving coil loudspeaker, and the end surface is close to the moving iron loudspeaker, and the first preset length is 2.6mm; The moving iron loudspeaker and the moving coil loudspeaker are spaced apart by a second preset length, wherein the second preset length is measured in a direction perpendicular to the end surface of the moving coil loudspeaker, wherein the end surface of the moving coil loudspeaker is the end surface close to the moving iron loudspeaker, and the second preset length is 0.5mm; The end surface of the sound guide pipe and the center point of the end surface of the moving coil loudspeaker are spaced apart by a third preset length, wherein the center point of the end surface is the center point of the end surface of the moving coil loudspeaker close to the moving iron loudspeaker, and the third preset length is 5.9mm; The shooting assembly is located above the bearing assembly; The bearing assembly is provided with a groove matching the outer contour of the dynamic coil earphone; The groove is configured to enable the inside of the dynamic coil earphone to face the shooting assembly directly; The processing unit is in communication connection with the shooting assembly; The shooting assembly is configured to shoot the internal layout of the dynamic coil earphone; The processing unit is configured to process the image shot by the shooting assembly; The processing unit is in communication connection with the clamping assembly; The processing unit is configured to control the clamping assembly to clamp the dynamic coil earphone; In response to detecting the detection request information of the corresponding dynamic coil earphone, the clamping assembly is controlled to place the dynamic coil earphone into the groove; In response to detecting that the dynamic coil earphone is placed into the groove, the shooting assembly is controlled to acquire the image information of the dynamic coil earphone as target image information; According to the target image information, the ferrite earphone is detected to obtain detection result information, wherein the detection result information includes information for representing whether the internal layout of the ferrite earphone is qualified, and the detection of the ferrite earphone according to the target image information to obtain the detection result information includes: The target image information is subjected to grayscale processing to obtain a grayscale image; The grayscale image is subjected to filtering processing to obtain a smooth image; The smooth image is subjected to edge detection to obtain primary earphone contour information; The primary earphone contour information is subjected to screening processing to obtain secondary earphone contour information; The secondary earphone contour information is subjected to component segmentation processing to obtain single-component contour information of the shell, single-component contour information of the moving coil loudspeaker, and single-component contour information of the moving iron loudspeaker; The single-component contour information of the shell, the single-component contour information of the moving coil loudspeaker, and the single-component contour information of the moving iron loudspeaker are subjected to feature extraction processing respectively to obtain geometric features of the shell, geometric features of the moving coil loudspeaker, and geometric features of the moving iron loudspeaker; According to the extracted geometric features of the shell, the geometric features of the moving coil loudspeaker, and the geometric features of the moving iron loudspeaker, component relative position information is generated; The component relative position information is compared with preset qualified information to obtain the detection result information.

2. The device for detecting the layout of a ferrite earphone according to claim 1, characterized in that, The rear cavity sealing cover is a wall-shaped structure connected to the shell; The moving coil loudspeaker is installed below the rear cavity sealing cover.

3. The device for detecting the layout of a ferrite earphone according to claim 1, characterized in that, The ferrite earphone further includes a dustproof net, and the dustproof net is installed at the port of the sound guide pipe; The dustproof net is configured to prevent sundries from entering the interior of the shell from the sound guide pipe.

4. The device for detecting the layout of a ferrite earphone according to claim 1, characterized in that, The length of the moving iron loudspeaker is greater than the length of the sound guide pipe; The length of the moving iron loudspeaker is greater than the height of the soft rubber sleeve.

5. The device for detecting the layout of a ferrite earphone according to claim 1, wherein, The moving coil loudspeaker is electrically connected to the main board.

6. The device for detecting the layout of a ferrite earphone according to claim 1, wherein, The ferrite earphone includes a soft rubber plug; The outer edge of the port of the sound guide pipe is provided with a protrusion; The soft rubber plug is configured to be sleeved on the protrusion.

7. The device for detecting the layout of a ferrite earphone according to claim 1, wherein The shell includes a bearing shell and a cover, wherein the moving coil loudspeaker and the moving iron loudspeaker are fixed in the bearing shell; The sound guide pipe is arranged on the bearing shell; The cover is installed on the bearing shell.

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