Patent Description:
With the development of science and technology, smart wearable devices such as smart watches, smart bracelets, smart glasses, and virtual reality/augmented reality (VR/AR) devices have been popularized and become an important part of people's lives. In-ear wearable devices have become one of the important types in the smart wearable devices due to the advantages such as being convenient to wear and not interfering with the activities of both hands.

However, the in-ear wearable devices at present are mostly standard-sized products. Due to the different shapes and sizes of various users' acoustic meatuses, the standard-sized products have the problems such as uncomfortable wearing for the users and easy falling off of the devices, thereby limiting wearing time and application scenarios of the devices. Therefore, a customized in-ear wearable device has received more attention. <CIT> shows an ITE hearing aid with a customized housing. The face plate has an operation element formed by a plunger that is connected to a switch. The device may be charged either inductively using a coil or by electrical contacts extending through the face plate.

For a customized in-ear wearable device, because its customized part (e.g., a housing) is different in shape and size for different users, it is difficult to mount some components that need to be interacted or communicated with the exterior of the device onto the customized part. In this case, the present disclosure considers mounting these components at a panel, for example, under the panel, but how to arrange the components so that they can occupy less panel space and device inner space under normal working is one of the technical problems to be solved urgently.

According to the present disclosure, at least part of the components are compactly arranged together, so that the spaces occupied by those components at the panel and in the housing can be reduced, thereby reducing the sizes of a panel assembly and the device under the condition that those components can work normally, and improving the adaptation rate of the panel assembly and the device wearing comfort.

In the following, an embodiment does not mean that it comprises all features of the invention as defined by the claims. The embodiments are rather to be understood as examples useful for understanding the invention. In an embodiment, there is provided a panel assembly of an in-ear wearable device, comprising a panel, a mainboard, a manipulation device, a charging device, a battery, an antenna device, a sound pickup device, a speaker assembly, and a wireless communication module, wherein:.

In an embodiment, an overlap ratio R of the minimum circumscribed circle of the orthographic projection of the manipulation device and the minimum circumscribed circle of the orthographic projection of the charging device is: <MAT>.

In an embodiment, the charging device may comprise a plurality of charging pins extending into an opening of the panel through the manipulation device.

In an embodiment, the manipulation device may comprise a through-hole and/or a depressed portion allowing the plurality of charging pins to pass through.

In an embodiment, the manipulation device may comprise a first through-hole at a center and a second through-hole or a depressed portion at a non-center.

In an embodiment, the plurality of charging pins comprise at least one first polarity charging pin extending into the opening of the panel through the first through-hole, and at least one second polarity charging pin extending into the opening of the panel through the second through-hole or the depressed portion.

In an embodiment, the number of the first polarity charging pin is one, the number of the second polarity charging pins is three, and the second polarity charging pins are arranged in an equilateral triangle with the first polarity charging pin as a center.

In an embodiment, the through-hole is a circular hole, an elliptical hole or an arc-shaped hole.

In an embodiment, a minimum distance from the plurality of charging pins to an outer contour of the manipulation device is within <NUM>.

In an embodiment, upper ends of the plurality of charging pins are all flush with an upper surface of the panel, or the upper ends of the plurality of charging pins are all lower than the upper surface of the panel, or the upper end of at least one of the plurality of charging pins is flush with the upper surface of the panel and the upper ends of other charging pins are lower than the upper surface of the panel.

In an embodiment, the plurality of charging pins are arranged as an arc outside the manipulation device.

In an embodiment, the manipulation device is substantially circular or elliptical.

In an embodiment, the minimum circumscribed circle of the manipulation device has a diameter of <NUM> to <NUM>.

In an embodiment, the panel assembly may further comprise a magnet, and the orthographic projections of the manipulation device and the charging device on a cross section of the magnet are located in the cross section.

In an embodiment, when a user wears the in-ear wearable device, a projection of the panel in a direction of the user's ear is located within a contour of the ear.

In an embodiment, there is provided an in-ear wearable device, comprising the aforementioned panel assembly and a housing.

In an embodiment, in a plane where the panel or the manipulation device is located, an orthographic projection of the housing covers all or most areas of orthographic projections of the panel, the manipulation device, the charging device, the battery, the antenna device and the sound pickup device.

In an embodiment, an orthographic projection of the housing covers most areas of orthographic projections of the panel, the manipulation device, the charging device, the battery, the antenna device and the sound pickup device means that, in a plane where the panel or the manipulation device is located, <NUM>% or more of an area defined by outer contours of the orthographic projections of the panel, the manipulation device, the charging device, the battery, the antenna device and the sound pickup device is located within the orthographic projection of the housing.

In an embodiment, the housing is a customized housing formed based on a shape and a size of a user's ear, comprising a first protruding portion and a second protruding portion; when the user wears the in-ear wearable device, the first protruding portion is located in an auricular concha cavity of the user or the auricular concha cavity and an external acoustic meatus of the user, and the second protruding portion is located in a cymba conchae of the user; and/or
the in-ear wearable device comprises at least one of an in-ear detection sensor, a body temperature sensor, a blood pressure sensor, a blood oxygen sensor, a heart rate sensor, and a blood glucose sensor.

For example by taking a touchpad as the manipulation device and adopting the charging device which partially overlaps the orthographic projection of the manipulation device in a direction perpendicular to the manipulation device and at least partially overlaps a minimum circumscribed circle of the orthographic projection of the manipulation device in a direction parallel to the manipulation device, the present disclosure reduces the spaces occupied by the manipulation device and the charging device at the panel and in the housing, thereby reducing the sizes of the panel assembly and the in-ear wearable device under the condition that the manipulation device and the charging device can work normally, and improving the adaptation rate of the panel assembly and the device wearing comfort.

Features, advantages and technical effects of the exemplary embodiments of the present application will be described below with reference to the drawings.

The specific embodiments of the present application are described below with reference to the drawings. In the drawings, the same or similar reference numerals are used to denote the same or similar components, and the repeated descriptions thereof are omitted for simplicity.

<FIG> shows a perspective view of a customized in-ear wearable device <NUM> according to an embodiment of the present disclosure. The customized in-ear wearable device <NUM> for example may be a customized wireless earphone. Only a single device (e.g., a device worn by the left ear) is shown in <FIG>, but those skilled in the art will appreciate that the customized in-ear wearable device <NUM> may include two devices worn by the left and right ears, respectively, and their structures may be substantially symmetrical and communicated wirelessly, and only one of the devices is illustrated and described here for simplicity. Referring to <FIG>, the customized in-ear wearable device <NUM> according to this embodiment includes a panel assembly <NUM> and a customized housing <NUM>. The housing <NUM> may be a customized housing formed based on the shape and the size of the user's ear. For example, the customized housing <NUM> may be manufactured using a manufacturing device based on an ear mold taken from the user's ear (including parts such as an external acoustic meatus, an auricular concha cavity, and/or a cymba conchae), and the manufacturing method for example may be 3D printing. The size of the customized housing <NUM> may be the same as that of the taken ear mold, or slightly smaller than that of the taken ear mold to improve the wearing comfort for some sensitive users.

At present, the in-ear wearable devices are mostly standard-sized products. Due to the different shapes and sizes of various users' acoustic meatuses, the standard-sized products have the problems that the users are uncomfortable to wear and the devices are prone to falling off, thereby limiting wearing time and application scenarios of the devices. In a case where the devices are the standard-sized products, in order to adapt to the sizes of most users' ears (e.g., the auricular concha cavities), the sizes of the devices shall be as small as possible. But in order to ensure stable wearing without falling off, the devices need to be provided with some protrusions so as to be firmly stuck on the ears. In this case, when the standard-sized products are worn, some parts of the acoustic meatuses or the auricles of most users will be compressed, thereby resulting in discomfort caused by long-term wearing. For example, many users will feel uncomfortable with their ears after wearing the devices for <NUM> minutes or even less. In addition, although the wearing stability of the standard-sized product is improved by providing some protrusions, the improvement degree is limited, and the problem of easy falling off still exists. However, in the present disclosure, since the housing <NUM> of the customized in-ear wearable device <NUM> is customized for the user and substantially does not compress the user's ear, the customized in-ear wearable device <NUM> of the present disclosure improves the wearing comfort compared with the standard-sized products. Moreover, since the housing <NUM> is customized for the user, the housing <NUM> has a better fit with the user's ear (e.g., the external acoustic meatus), thereby being stable to wear and not easy to fall off. Under the conditions of good wearing comfort and stability, the user can wear the device for a longer time, such as several hours or even longer. Further, since the user can wear the device for a longer time, it is more possible for the user to apply the device in various scenarios. For example, in addition to the conventional audio and video services, the device can also be used to make voice or video calls, play games, and carry out various virtual reality activities.

<FIG> is an exploded view of a customized in-ear wearable device <NUM> according to an embodiment of the present disclosure. Similar to <FIG>, the customized in-ear wearable device <NUM> according to this embodiment includes a panel assembly <NUM> and a customized housing <NUM>. Referring to <FIG>, the panel assembly <NUM> may include a panel <NUM>, a mainboard <NUM>, a manipulation device <NUM>, a charging device <NUM>, a battery <NUM>, an antenna device <NUM>, a sound pickup device <NUM>, a speaker assembly <NUM>, a wireless communication module <NUM> (not shown). The manipulation device <NUM> is a touchpad that can be manipulated from above the panel <NUM>, and the charging device <NUM> is a device that can charge the in-ear wearable device <NUM> from above the panel <NUM>. The touchpad for example may be a device which implements a touch by changing parameters such as a resistance or a capacitance of a touch unit on the touchpad by a human body part such as a finger, and it is different from a mechanical manipulation device such as a mechanical knob or a mechanical switch in that the touchpad usually does not generate a visible mechanical motion to implement a manipulation of the touchpad. In addition to the technology of changing the parameters such as the resistance or the capacitance, the present disclosure may adopt other touch technologies as long as they can perform a manipulation above the panel <NUM>. The manipulation above the panel <NUM> mentioned herein may include a manipulation mode such as manipulating the touchpad (the manipulation device <NUM>) across the panel <NUM> and partially exposing the touchpad from the panel <NUM> for manipulation.

In a case where the customized housing <NUM> is adopted, the housing <NUM> is customized based on the user's ear, and its shape and size vary depending on different users. Therefore, for the components such as the manipulation device <NUM>, the charging device <NUM>, and the sound pickup device <NUM> of the customized in-ear wearable device <NUM> which need to be interacted or communicated with the outside, it is difficult to dispose parts or interfaces where these components are interacted or communicated with the outside onto the housing <NUM>. In view of this situation, in the present disclosure, the parts or the ports where the components such as the manipulation device <NUM>, the charging device <NUM> and/or the sound pickup device <NUM> are interacted or communicated with the outside are disposed on the panel <NUM>.

In a case where the customized housing <NUM> is adopted, if the panel <NUM> is too large, for example, much larger than an end of the customized housing <NUM> close to the panel <NUM>, or the panel <NUM> protrudes largely from the user's ear (e.g., the auricular concha cavity and/or the cymba conchae) when being worn (e.g., with a rod portion like a rod-shaped earphone), the user's wearing comfort and wearing stability will be greatly degraded due to the large size and weight of the part located outside the ear, and noise (e.g., wind noise) will be increased. In view of this situation, in the present disclosure, the panel <NUM> is designed to be substantially similar to the shape of the end of the housing <NUM> close to the panel <NUM>. In other words, the panel <NUM> does not have a large protrusion relative to the housing <NUM>, such as a rod portion protruding from the housing <NUM>. In an embodiment, in a plane where the panel <NUM> or the manipulation device <NUM> is located, an orthographic projection of the housing <NUM> covers all or most areas of orthographic projections of the panel <NUM>, the manipulation device <NUM>, the charging device <NUM>, the battery <NUM>, the antenna device <NUM> and the sound pickup device <NUM>. Covering the all areas here means, for example, that in the plane where the panel <NUM> or the manipulation device <NUM> is located, the orthographic projections of the panel <NUM>, the manipulation device <NUM>, the charging device <NUM>, the battery <NUM>, the antenna device <NUM> and the sound pickup device <NUM> are located within the orthographic projection of the housing <NUM>. Covering most areas here means, for example, that in the plane where the panel <NUM> or the manipulation device <NUM> is located, <NUM>% or more of an area defined by outer contours of the orthographic projections of the panel <NUM>, the manipulation device <NUM>, the charging device <NUM>, the battery <NUM>, the antenna device <NUM> and the sound pickup device <NUM> is located within the orthographic projection of the housing <NUM>. The outer contours of orthographic projections of a plurality of components may be those obtained in conventional ways, such as minimum contour lines that can cover the orthographic projections of the plurality of components obtained by means of curves, folded lines and the like along outer edges of these orthographic projections.

As mentioned above, under the condition that the size of the panel <NUM> cannot be too large, how to accommodate the parts or ports where the manipulation device <NUM>, the charging device <NUM> and/or the sound pickup device <NUM> are interacted or communicated with the outside onto the panel <NUM> has become one of the problems to be solved urgently in the present disclosure.

For example, by taking a touchpad as the manipulation device <NUM>, and adopting the charging device <NUM> which partially overlaps the orthographic projection of the manipulation device <NUM> in a direction perpendicular to the manipulation device <NUM> and at least partially overlaps a minimum circumscribed circle of the orthographic projection of the manipulation device in a direction parallel to the manipulation device, the present disclosure reduces the spaces occupied by the manipulation device <NUM> and the charging device <NUM> at the panel <NUM> and in the housing <NUM>, thereby reducing the sizes of the panel assembly <NUM> and the in-ear wearable device <NUM> under the condition that the manipulation device <NUM> and the charging device <NUM> can work normally, and improving the adaptation rate of the panel assembly <NUM> and the device wearing comfort.

In an embodiment, in a plane perpendicular to the panel <NUM> or the manipulation device <NUM>, the orthographic projection of the manipulation device <NUM> partially overlaps the orthographic projection of the charging device <NUM>. For example, in a direction perpendicular to the panel <NUM> or the manipulation device <NUM>, the charging device <NUM> passes through the manipulation device <NUM>, or passes through a part or the exterior of the manipulation device <NUM>. In the plane where the panel <NUM> or the manipulation device <NUM> is located, a minimum circumscribed circle of the orthographic projection of the manipulation device <NUM> at least partially overlaps a minimum circumscribed circle of the orthographic projection of the charging device <NUM>.

The minimum circumscribed circle of one or more shapes refers to a minimum circle that can accommodate the one or more shapes in a plane. For example, the minimum circumscribed circle of the orthographic projection of the manipulation device <NUM> in the plane where the panel <NUM> is located refers to a minimum circle in which all shapes formed by the orthographic projection of the manipulation device <NUM> (a projection in a direction perpendicular to the next-mentioned plane serving as a projection reference) are located, in a plane where an upper surface, a lower surface or a whole plane of the panel <NUM> (e.g., a plane passing through a center or a gravity center of the panel <NUM> and is substantially parallel to the whole panel) is located or a plane parallel to one of these planes. The upper surface of the panel <NUM> refers to a surface located outside when the panel <NUM> is mounted to the housing <NUM>, i.e., a surface facing the exterior of the user's ear when the user wears the in-ear wearable device <NUM>. The lower surface of the panel <NUM> is a surface on an opposite side of the upper surface. The upper and lower surfaces of other components have similar meanings. Similarly, the minimum circumscribed circle of the orthographic projection of the manipulation device <NUM> in the plane where the manipulation device <NUM> is located refers to a minimum circle in which all shapes formed by the orthographic projection of the manipulation device <NUM> (a projection in a direction perpendicular to the next-mentioned plane serving as a projection reference) are located, in a plane where an upper surface, a lower surface or a whole plane of the manipulation device <NUM> (e.g., a plane passing through a center or a gravity center of the manipulation device <NUM> and is substantially parallel to the whole manipulation device) is located or a plane parallel to one of these planes. In the embodiment as shown in <FIG>, when the plane where the manipulation device <NUM> is located serves as the projection reference and the outer contour of the manipulation device <NUM> is circular, the minimum circumscribed circle of the orthographic projection of the manipulation device <NUM> is a circle serving as the outer contour of the manipulation device <NUM>. The minimum circumscribed circle of the orthographic projection of the charging device <NUM> is similar to that of the orthographic projection of the manipulation device <NUM>, and will not be described here.

In an embodiment, in the plane where the panel <NUM> or the manipulation device <NUM> is located, the minimum circumscribed circle of the orthographic projection of the charging device <NUM> may be located in the minimum circumscribed circle of the orthographic projection of the manipulation device <NUM> (or vice versa), and they are completely coincident (the sizes and positions are both the same), or the minimum circumscribed circle of the orthographic projection of the charging device <NUM> may partially overlap the minimum circumscribed circle of the orthographic projection of the manipulation device <NUM>.

In an embodiment, an overlap ratio may be used to represent the at least partial overlap between the minimum circumscribed circles of the orthographic projections of the manipulation device <NUM> and the charging device <NUM> in the plane where the panel <NUM> or the manipulation device <NUM> is located. Assuming that in the plane where the panel <NUM> or the manipulation device <NUM> is located, an area of the minimum circumscribed circle of the orthographic projection of the manipulation device <NUM> is S<NUM>, an area of the minimum circumscribed circle of the orthographic projection of the charging device <NUM> is S<NUM>, and an overlap area of these two minimum circumscribed circles is S<NUM>, then an overlap ratio R of the minimum circumscribed circle of the orthographic projection of the manipulation device <NUM> and the minimum circumscribed circle of the orthographic projection of the charging device <NUM> is: <MAT>.

In the above equation, max(S<NUM>, S<NUM>) represents a larger value of S<NUM> and S<NUM>. In an embodiment, the overlap ratio R is <NUM>% to <NUM>%. When the two minimum circumscribed circles are completely coincident, the overlap ratio R is <NUM>%. In an embodiment, the overlap ratio R is <NUM>% to <NUM>%.

In an embodiment, the panel assembly <NUM> may further include a magnet <NUM>, and the orthographic projections of the manipulation device <NUM> and the charging device <NUM> on a cross section of the magnet <NUM> are located in the cross section. In this case, the outer contours of the manipulation device <NUM> and the charging device <NUM> are smaller than the cross section of the magnet <NUM>. In an embodiment, as shown in <FIG>, the magnet <NUM> may be located between the mainboard <NUM> and the charging device <NUM>. In an embodiment, the sound pickup device <NUM> may include a first sound pickup device <NUM> and a second sound pickup device <NUM>. Although the sound pickup device <NUM> is shown to include two sound pickup devices <NUM> and <NUM> in <FIG>, in other embodiments, more or less sound pickup devices may be used according to actual needs. As an example, the sound pickup device may be a microphone such as a micro-electromechanical microphone (also called a silicon microphone).

The in-ear wearable device may include at least one of an in-ear detection sensor, a body temperature sensor, a blood pressure sensor, a blood oxygen sensor, a heart rate sensor and a blood glucose sensor. In an embodiment, the customized in-ear wearable device <NUM> may include an in-ear detection sensor <NUM> configured to detect whether the customized in-ear wearable device <NUM> is in a wearing state. When detecting that the customized in-ear wearable device <NUM> is in a non-wearing state, the in-ear detection sensor <NUM> may send a signal (i.e., a signal indicating that the customized in-ear wearable device <NUM> is in the non-wearing state) to a control unit of the customized in-ear wearable device <NUM>, so as to set the customized in-ear wearable device <NUM> in a standby state, other non-working state or an off state. When detecting that the customized in-ear wearable device <NUM> is in the wearing state, the in-ear detection sensor <NUM> may send a signal (i.e., a signal indicating that the customized in-ear wearable device <NUM> is in the wearing state) to the control unit of the customized in-ear wearable device <NUM>, so as set the customized in-ear wearable device <NUM> in the working state, turn on the customized in-ear wearable device <NUM> in a case where the customized in-ear wearable device <NUM> is originally turned off, or keep the customized in-ear wearable device <NUM> in the original working state. The in-ear detection sensor <NUM> may be included in the panel assembly <NUM> or may be a component independent of the panel assembly <NUM>. The in-ear detection sensor <NUM> may detect the wearing state of the in-ear wearable device by one or more of light detection, infrared detection, pressure detection, and the like, which is not limited in the present disclosure.

In an embodiment, the customized in-ear wearable device <NUM> may include other types of sensors instead of the in-ear detection sensor <NUM>, or may include other types of sensors in addition to the in-ear detection sensor <NUM>. These other types of sensors may include a body temperature sensor, a blood pressure sensor, a blood oxygen sensor, a heart rate sensor, a blood glucose sensor, and the like. In an embodiment, one type of sensor may be used to realize various detections. For example, a single in-ear detection sensor <NUM> adopting the infrared detection can detect both the wearing state and the body temperature. In an embodiment, a single detection may be realized using various types of sensors, and for example, a wearing state detection is performed using both the body temperature sensor and the heart rate sensor.

Although the panel assembly <NUM> is illustrated herein to include the panel <NUM> and the various components, it is not required that the panel <NUM> and the various components are formed as one piece, and they may be provided separately as appropriate. For example, the panel <NUM> may be assembled with some components into a first part, other components are assembled into a second part, and these two parts are mounted to the housing <NUM> at a later assembly stage of the customized in-ear wearable device <NUM>. For example, the panel <NUM>, the manipulation device <NUM>, the charging device <NUM> and the battery <NUM> may be arranged in one module, and other components may be arranged in another module. Of course, other arrangements may also be adopted, which is not limited in the present disclosure. <FIG> is an assembly diagram of components of a panel assembly <NUM> according to an embodiment of the present disclosure. Although the panel assembly <NUM> includes the panel <NUM>, the panel <NUM> is not shown in <FIG> for clarity. As shown in <FIG>, the components may be assembled together by means of bolts, welding, gluing, clamping and the like.

Referring back to <FIG>, the components such as the mainboard <NUM>, the manipulation device <NUM>, the charging device <NUM>, the battery <NUM>, the antenna device <NUM>, the magnet <NUM>, the sound pickup device <NUM>, the speaker assembly <NUM> and the wireless communication module <NUM> may be located in a space formed by the panel <NUM> and the customized housing <NUM>. Specifically, these components may be mainly located in an inner cavity <NUM> of the customized housing <NUM>, and the panel <NUM> may be configured to enclose the inner cavity <NUM>. The panel <NUM> may be a flat cover plate, or any rugged or uneven cover plate, as long as other components can work normally.

In the present disclosure, for a certain number of users, the adaptation rate of the panel assembly <NUM> refers to a ratio of the number of users of the manufactured customized in-ear wearable device <NUM> to which the panel assembly <NUM> may be adapted, to a counted total number of users. For example, if the size of the panel <NUM> is too large, the panel assembly <NUM> cannot be matched with the housing <NUM> customized for the user and the user's ear, and this situation is called inadaptation. The calculation of the adaptation rate can adopt a simple mathematical method or any other statistical method. In the present disclosure, by designing the arrangement of the manipulation device <NUM> and the charging device <NUM>, the spaces occupied by the manipulation device <NUM> and the charging device <NUM> at the panel <NUM> and in the housing <NUM> are reduced, so that the sizes of the panel assembly <NUM> and the customized in-ear wearable device <NUM> can be reduced under the condition that the manipulation device <NUM> and the charging device <NUM> work normally, thereby improving the adaptation rate of the panel assembly <NUM> and the device wearing comfort.

Referring back to <FIG>, the customized in-ear wearable device <NUM> according to an embodiment of the present disclosure is further described. In an embodiment, the orthographic projections of the mainboard <NUM>, the manipulation device <NUM>, the charging device <NUM>, the battery <NUM>, the antenna device <NUM>, the magnet <NUM>, the sound pickup device <NUM>, the speaker assembly <NUM>, and the wireless communication module <NUM> on a plane where the panel <NUM> is located are located in the panel <NUM>. As described above, the panel <NUM> may be a flat cover plate or any rugged or uneven cover plate. In a case where the panel <NUM> is the rugged or uneven cover plate, the plane where the panel <NUM> is located is an approximate plane that can be formed by the panel <NUM>, and it is not required that most of the panel <NUM> is located in the plane, and for example, parts of the panel <NUM> above and below the plane may be the same or similar. The reason why the above components are disposed such that the orthographic projections thereof are located in the panel <NUM> is mainly to enable the panel <NUM> to cover the components, so that the panel <NUM> can easily form the panel assembly <NUM> and facilitate the mounting with the customized housing <NUM>. If the orthographic projection of one or more components protrudes outside the panel <NUM>, i.e., the panel <NUM> cannot cover the one or more components, there may be problems such as the protrusion of the component makes the component cannot be mounted into the customized housing <NUM>, or causes a collision with the component and affects the electrical connectivity of the component.

As shown in <FIG>, in an embodiment, the manipulation device <NUM>, the magnet <NUM>, the mainboard <NUM> and the battery <NUM> may be sequentially arranged below the panel <NUM>. By this arrangement, the components can be better accommodated in the inner cavity <NUM> of the customized housing <NUM>. This is particularly important for the customized in-ear wearable device <NUM>, because it is different from the non-customized in-ear wearable device which can be provided with a large external rod portion or a bean portion. The customized in-ear wearable device <NUM> only has a small amount of protrusions (e.g., the panel <NUM> and a small part of the customized housing <NUM>) in a direction perpendicular to the ear (i.e., a direction substantially perpendicular to the panel <NUM> when the customized in-ear wearable device <NUM> is worn), and substantially has no protrusion in a direction parallel to the ear (i.e., a direction parallel to the panel <NUM> when the customized in-ear wearable device <NUM> is worn). Thus, the inner cavity <NUM> of the customized housing <NUM> has a very small volume, and it is necessary to sufficiently design the positions and the sequences of the components so that the components can be accommodated in the inner cavity <NUM>.

As shown in <FIG>, in an embodiment, the manipulation device <NUM> is a touchpad that can be manipulated from above the panel <NUM>, and may be substantially circular or elliptical, or may adopt any other shape. The manipulation device <NUM> (touchpad) is substantially circular or elliptical means that the overall outer contour of the manipulation device <NUM> is circular or elliptical, and there may be some through-holes or depressions in the manipulation device <NUM>, but this does not affect the shape of the overall outer contour of the manipulation device <NUM>. Those skilled in the art can easily determine the general shape of the manipulation device <NUM>.

By operating with the touchpad instead of a mechanical knob or a mechanical switch, the user can control the customized in-ear wearable device <NUM> just by applying a small force, thereby reducing the pressure on the ear caused by the manipulation when the user wears the device. Meanwhile, since the touchpad has a long service life and a high stability, the failure rate of the manipulation device <NUM> is also reduced. The touchpad may be a conventional resistive or capacitive touchpad, and it is also possible to adopt any other touch technology, which is not limited in the present disclosure.

In an embodiment, the minimum circumscribed circle of the manipulation device <NUM> (touchpad) may have a diameter of <NUM> to <NUM>. This size not only ensures the normal and reliable touch on the manipulation device <NUM> (touchpad) (a normal touch will not be achieved if the size is too small), but also prevents the adaptation rate of the panel assembly <NUM> and the device wearing comfort from being reduced due to the oversizing of the panel <NUM> as too much space thereof is occupied. Meanwhile, in a case of this size, a through-hole or a depression may be provided on the manipulation device <NUM> to allow the charging device <NUM> to pass through. In an embodiment, the minimum circumscribed circle of the manipulation device <NUM> has a diameter of <NUM> to <NUM>, in which case, the adaptation rate of the panel <NUM> and the device wearing comfort can be further improved.

The through-hole and the depressed portion of the manipulation device <NUM> may adopt various shapes. For example, the through-hole may be a circular hole, an elliptical hole or an arc-shaped hole, and the depressed portion may be an arc-shaped depression or a depression of any other shape.

The operation on the manipulation device <NUM> may control the On/Off of the customized in-ear wearable device <NUM>, the working mode, the start and the mode of noise reduction, the adjustment of the volume level, and Start, Pause, Previous, Next, Fast Forward, Fast Backward, etc. of the audio and video playing. The working mode of the customized in-ear wearable device <NUM> for example may be a Hi-Fi (High Fidelity) music mode, a call mode, a transparent mode, or the like. For example, in the Hi-Fi music mode, the audio output mode is adjusted to a mode suitable for music playing and the maximum noise reduction is enabled, so that the user can obtain good music experiences; in the call mode, the voice is enhanced and a proper noise reduction is enabled, so that the user can make a clear voice or video call; in the transparent mode, the external sound is transmitted to the ear without enabling the noise reduction, so that the user can normally perceive the external sound as if not wearing the device, thereby normally interacting with the outside or other persons. The noise reduction modes may include, for example, maximum noise reduction, proper noise reduction, non-noise reduction, and the like, and may also include various noise reduction modes defined according to the application scenarios, such as aircraft noise reduction, high-speed rail noise reduction, subway noise reduction, office noise reduction, and the like. The specific manipulation content is not limited to those described above and may include any other content, and the manipulation content may be preset or user-defined.

In an embodiment, the charging device <NUM> is a charging pin capable of charging the customized in-ear wearable device <NUM> from above the panel <NUM>. As shown in <FIG>, the charging device <NUM> may include a plurality of charging pins, which are extended into an opening of the panel <NUM> for example through the manipulation device <NUM>, and contacted with metal contacts of a charger or a charging stand from above the panel <NUM> through the opening of the panel <NUM> to charge the customized in-ear wearable device <NUM>.

The manipulation device <NUM> may include through-holes and/or depressed portions allowing a plurality of charging pins to pass through. In an embodiment, as shown in <FIG>, the manipulation device <NUM> includes a first through-hole <NUM> at a center and a second through-hole <NUM> at a non-center. In this embodiment, the manipulation device <NUM> includes one first through-hole <NUM> and three second through-holes <NUM>. In other embodiments, the manipulation device <NUM> may include other numbers of first through-holes <NUM> and second through-holes <NUM>, such as one first through-hole <NUM> and one second through-hole <NUM>, one first through-hole <NUM> and two second through-holes <NUM>, two first through-holes <NUM> and one second through-hole <NUM>, two first through-holes <NUM> and two second through-holes <NUM>, and so on. The positions of the first through-hole <NUM> and the second through-hole <NUM> may be variously set according to requirements. For example, in a case where the manipulation device <NUM> includes one first through-hole <NUM> and one second through-hole <NUM>, the first through-hole <NUM> and the second through-hole <NUM> may be symmetrical with respect to the center of the manipulation device <NUM>, and of course may also be arranged asymmetrically. In an embodiment, as shown in <FIG>, in a case where the manipulation device <NUM> includes one first through-hole <NUM> and three second through-holes <NUM>, the second through-holes <NUM> are arranged in an equilateral triangle with the first through-hole <NUM> as a center. The number and the positions of the through-holes of the manipulation device <NUM> have been described above, but those skilled in the art will appreciate that the number and the positions of the through-holes may be determined based on the number and the positions of the charging pins. In other words, the number of the through-holes may be equal to or greater than the number of the charging pins, and the through-holes corresponding to the charging pins are disposed at positions allowing the charging pins to pass through.

Although it is shown in <FIG> that the charging pin extends into the panel <NUM> through the through-hole on the manipulation device <NUM>, the charging pin may also pass through the manipulation device <NUM> in other ways, for example, extending into the panel <NUM> through the depressed portion on the outer periphery of the manipulation device <NUM> (touchpad), extending into the panel <NUM> through the outer contour of the manipulation device <NUM>, and the like.

<FIG> shows a schematic diagram of a manipulation device <NUM> and a charging device <NUM> according to an embodiment of the present disclosure. As shown in <FIG>, an outer periphery of the manipulation device <NUM> (touchpad) is provided with a depressed portion <NUM> allowing a plurality of charging pins of the charging device <NUM> to pass through. Similar to the second through-hole <NUM>, there may be one or more depressed portions <NUM>. In a case where there are a plurality of depressed portions <NUM>, the depressed portions <NUM> may be evenly or unevenly distributed on the outer periphery of the manipulation device <NUM>. The position where the charging pin passes through the manipulation device <NUM> may be located within the outer contour of the manipulation device <NUM> without any depressed portion, so that the presence of the charging device <NUM> does not increase the size of the panel <NUM>. In the embodiment shown in <FIG>, the manipulation device <NUM> further includes one first through-hole <NUM> in addition to the depressed portion <NUM>. In an embodiment, the manipulation device <NUM> may only include the depressed portion <NUM> without any through-hole. In an embodiment, the manipulation device <NUM> may include at least one of the through-hole, the depressed portion, the outer contour, and the like.

By forming the through-holes or the depressed portions in the manipulation device <NUM> to allow the charging pins to pass through, the arrangements of the manipulation device <NUM> and the charging device <NUM> are more compact, and the spaces occupied by these components on the panel <NUM> and in the housing <NUM> are reduced, so that the sizes of the panel assembly <NUM> and the customized in-ear wearable device <NUM> can be reduced under the condition that the manipulation device <NUM> and the charging device <NUM> work normally, thereby improving the adaptation rate of the panel assembly <NUM> and the device wearing comfort.

<FIG> shows a schematic diagram of a manipulation device <NUM> and a charging device <NUM> according to an embodiment of the present disclosure. In an embodiment, as shown in <FIG>, a plurality of charging pins of the charging device <NUM> may be arranged close to an outer contour of the manipulation device <NUM> without forming a through-hole or a depressed portion for the manipulation device <NUM>. In this case, a minimum distance from the plurality of charging pins to the outer contour of the manipulation device <NUM> for example is within <NUM> (e.g., <NUM> to <NUM>), so as to avoid the problem that the arrangement of the components is not compact or too much space is occupied on the panel <NUM> and in the housing <NUM> due to the excessive distance.

In the present disclosure, the plurality of charging pins of the charging device <NUM> may extend into the opening of the panel <NUM> through one, two or three of the through-hole, the depressed portion and the outer contour of the manipulation device <NUM>. In an embodiment, as shown in <FIG>, the plurality of charging pins of the charging device <NUM> all extend into the opening of the panel <NUM> through the through-holes on the manipulation device <NUM>. In an embodiment, the plurality of charging pins of the charging device <NUM> all extend into the opening of the panel <NUM> through the depressed portions on the manipulation device <NUM>. In an embodiment, as shown in <FIG>, the plurality of charging pins of the charging device <NUM> all extend into the opening of the panel <NUM> from the exterior of the outer contour of the manipulation device <NUM>, and there is no through-hole or depressed portion on the manipulation device <NUM>. In an embodiment, as shown in <FIG>, at least one charging pin of the charging device <NUM> extends into the opening of the panel <NUM> through a through-hole on the manipulation device <NUM>, and other charging pins extend into the opening of the panel <NUM> through the depressed portion on the manipulation device <NUM>. In an embodiment, at least one charging pin of the charging device <NUM> extends into the opening of the panel <NUM> through the through-hole or the depressed portion on the manipulation device <NUM>, and other charging pins are arranged close to the outer contour of the manipulation device <NUM>. In an embodiment, at least one charging pin of the charging device <NUM> extends into the opening of the panel <NUM> through the through-hole on the manipulation device <NUM>, at least one charging pin extends into the opening of the panel <NUM> through the depressed portion on the manipulation device <NUM>, and other charging pins are arranged close to the outer contour of the manipulation device <NUM>.

<FIG> shows a schematic diagram of a manipulation device <NUM> and a charging device <NUM> according to an embodiment of the present disclosure. In the embodiment shown in <FIG>, the manipulation device <NUM> is configured as a circular ring, and all the charging pins of the charging device <NUM> extend into the opening of the panel <NUM> through the interior of the circular ring. In other embodiments, it is also possible to adopt a mode that part of the charging pins extend into the panel <NUM> through the interior of the circular ring, and other charging pins extend into the panel <NUM> through at least one of the through-hole, the depressed portion and the exterior of the outer contour.

The plurality of charging pins of the charging device <NUM> can protrude from the opening of the panel <NUM>, i.e., the upper ends of the charging pins may be higher than the upper surface of the panel <NUM>. In this case, the charging pins may be in good contact with the metal contacts of the charger or the charging stand, but the touch on the manipulation device <NUM> may be affected. Therefore, in an embodiment, the charging pins may not protrude from the opening of the panel <NUM>, i.e., the upper ends of the charging pins may be flush with or lower than the upper surface of the panel <NUM>, so that the touch on the manipulation device <NUM> will not be affected when the charging pins protrude from the panel <NUM>. In a case where the upper ends of the charging pins are lower than the upper surface of the panel <NUM>, the upper ends of the charging pins may be set slightly lower than the upper surface of the panel <NUM>. For example, in a case where the thickness of the panel <NUM> is <NUM>, a distance between the upper ends of the charging pins and the upper surface of the panel <NUM> in a direction perpendicular to the upper surface of the panel <NUM> may be <NUM> to <NUM>. In this case, the upper ends of the charging pins are set higher than the lower surface of the panel <NUM>, and the positions of the charging pins can be limited using the opening of the panel <NUM>, thereby further improving the contact reliability between the charging pins and the metal contacts of the charger or the charging stand.

In a case where the upper ends of the charging pins are lower than the upper surface of the panel <NUM>, the metal contacts of the charger or the charging stand matched with the charging pins need to be able to extend into the opening in the panel <NUM>, which accommodates the charging pin, so as to contact the charging pins. In an embodiment, the upper ends of the plurality of charging pins are all flush with the upper surface of the panel <NUM>. In an embodiment, the upper ends of the plurality of charging pins are all lower than the upper surface of the panel <NUM>. In an embodiment, the upper end of at least one of the plurality of charging pins is flush with the upper surface of the panel <NUM>, and the upper ends of other charging pins are lower than the upper surface of the panel <NUM>. The 'upper end of the charging pin' mentioned here refers to an end of the charging pin extending into the opening of the panel <NUM>, or an end close to the upper surface of the panel <NUM>.

The number of the charging pins may be two, or any other number greater than two, such as three, four, or the like. The plurality of charging pins may include at least one first polarity (e.g., positive or negative) charging pin and at least one second polarity (e.g., negative or positive) charging pin. The first polarity charging pin for example may extend into the opening of the panel <NUM> through a first through-hole at the center of the manipulation device <NUM>, and the second polarity charging pin for example may extend into the opening of the panel <NUM> through a second through-hole or a depressed portion of the manipulation device <NUM>. The number of the second through-hole(s) or the depressed portion(s) may be one or more. In an embodiment, the number of the first polarity charging pin is one, and the number of the second polarity charging pins is three. In an embodiment, three second polarity charging pins are arranged in an equilateral triangle with the first polarity charging pin as a center. The charging pins with the same polarity are usually electrically connected, for example, through conductive wires or metal sheets.

In an embodiment, as shown in <FIG>, the charging device <NUM> includes four charging pins, wherein one positive charging pin may be located in the middle, for example, corresponding to the center of the manipulation device <NUM>, the battery <NUM> or the magnet <NUM>, and three negative charging pins may equally surround the positive charging pin. A plurality of charging pins may be provided for a certain polarity, so that the connection reliability with the charger or the charging stand can be improved, i.e., even if some charging pins are in poor contact with corresponding contacts of the charger or the charging stand due to the problems such as stains, rust and insufficient height, the electrical connection can also be realized by other charging pins. In another embodiment, the polarities of the charging pins may be exchanged, for example, there are one negative charging pin and three positive charging pins. In other embodiments, other numbers of charging pins may also be adopted, such as one positive charging pin and two negative charging pins, or two positive charging pins and one negative charging pin. The thicknesses of the positive charging pin and the negative charging pin may be the same or different. For example, in a case where the charging pins include one positive charging pin and three negative charging pins, the positive charging pin may be set to be thicker than the negative charging pin, thereby improving the connection reliability of a small number of charging pins with the charger or the charging stand and ensuring the impedance consistency of the charging pins with different polarities. The charging pin may have a fixed height or a certain elasticity, so that the charging pin can be better connected when being in contact with the contacts of the charger or the charging stand.

The charging pin may be in a needle shape viewed as a dot or a small circle from above the panel, or may be in various shapes viewed as a straight line segment, an arc segment, a folded line segment, a curve segment, and the like from above the panel. <FIG> shows a perspective view of a customized in-ear wearable device <NUM> according to an embodiment of the present disclosure. In this embodiment, the charging pin is an arc-shaped sheet, and the panel is provided with an arc-shaped opening allowing the charging pin to extend into, which is shown as an arc segment with a certain thickness in <FIG>, and the connection reliability between the charging pin and the charger or the charging stand can be improved by setting a radian and a thickness. Similar to the previous description, the plurality of arc-shaped charging pins may extend into the opening on the panel through the through-hole, the depressed portion or the exterior of the outer contour of the manipulation device, etc., while other settings are similar and the descriptions thereof are omitted here. In an embodiment, a plurality of charging pins are disposed as an arc outside the manipulation device, and a minimum distance from the plurality of charging pins to the outer contour of the manipulation device may also be within <NUM>, such as <NUM> to <NUM>.

Referring back to <FIG>, in an embodiment, a support plate may be provided to fix the charging pin. In other embodiments, the charging pin may also be fixed in other manners. In a case where an identical electrode has more than one charging pin, these charging pins may be electrically connected through a conductive metal sheet or metal wire, and the metal sheet or the metal wire for example may also be fixed on the support plate. In the present disclosure, for the sake of clarity, the charging device <NUM> generally refers to a charging pin, not including a support plate and a metal sheet or a metal wire serving as an electrical connection mechanism. Specifically, when an orthographic projection, an outer contour or a minimum circumscribed circle of the charging device <NUM> is mentioned herein, it only refers to an orthographic projection, an outer contour or a minimum circumscribed circle of the charging pin, not including other parts such as the support plate, the metal sheet/metal wire.

The battery <NUM> supplies power required for the working of the customized in-ear wearable device <NUM>, and may adopt a rechargeable battery of a specific specification such as a rechargeable battery of type <NUM> (i.e., a cross-sectional diameter of <NUM> and a height of <NUM>) or of any other specification. The battery <NUM> may be a lithium-ion battery or any other type of battery, which is not limited in the present disclosure.

The antenna device <NUM> is configured to send and receive wireless signals for the customized in-ear wearable device <NUM>, so that the customized in-ear wearable device <NUM> can work wirelessly. For example, the antenna device <NUM> may be disposed close to the lower part of panel <NUM> when the customized in-ear wearable device <NUM> is worn, so that the antenna device <NUM> is not shielded by other metal components and is as far away from other metal components as possible to better send and receive the wireless signals. The antenna device <NUM> may be in various forms such as a dipole antenna, a planar inverted-F antenna, or a ceramic antenna, which is not limited in the present disclosure.

The magnet <NUM> is configured to stably attract the customized in-ear wearable device <NUM> with the charger or the charging stand when the customized in-ear wearable device <NUM> is charged, thereby improving the charging connection stability. In an embodiment, the magnet <NUM> may be a circular magnet, in which case its center may coincide with a center of the touchpad <NUM> or the battery <NUM>. Although only one circular magnet is shown in <FIG>, those skilled in the art will appreciate that magnets of other numbers and shapes may also be adopted. For example, the customized in-ear wearable device <NUM> may not include the magnet <NUM>, or may use two or more magnets with different polarities, and the magnet may be of various shapes such as a circle, an ellipse, and a square. In a case where the customized in-ear wearable device <NUM> uses two magnets with different polarities, corresponding settings may be made on the charger or the charging stand, so that the customized in-ear wearable device <NUM> and the charger or the charging stand can be better abutted against each other.

The mainboard <NUM> is configured to load and connect the main components of the customized in-ear wearable device <NUM>, and these components include the manipulation device <NUM>, the charging device <NUM>, the battery <NUM>, the antenna device <NUM>, the sound pickup device <NUM>, the speaker assembly <NUM>, the wireless communication module <NUM>, and the like. These components may be directly or indirectly (for example, by various fixing components or other components) fixed to the mainboard <NUM> by means of bolts, welding, gluing, and the like, and the components may be connected by a printed circuit, a lead, a flying wire, a spherical pin, and the like on the mainboard <NUM>. In the embodiment shown in <FIG>, the mainboard <NUM> is a rigid mainboard, and may be disposed between the magnet <NUM> and the battery <NUM>, or when there is no magnet <NUM>, disposed between the manipulation device <NUM> and the battery <NUM> or between the support plate of the charging device <NUM> and the battery <NUM>. In an embodiment, the customized in-ear wearable device <NUM> may be a flexible mainboard, which will be described in detail with reference to <FIG>.

Referring back to <FIG>, in an embodiment, the sound pickup device <NUM> may include two sound pickup devices <NUM> and <NUM>. Depending on the functionality of the customized in-ear wearable device <NUM>, the sound pickup devices <NUM> and <NUM> may be configured to pick up sound of the same type or different types. For example, the first sound pickup device <NUM> may be configured to pick up call sound and ambient sound, and the second sound pickup device <NUM> may be configured to pick up the ambient sound. By using two or more sound pickup devices to pick up the sound, the sound picked up by different sound pickup devices can be processed, thereby achieving the effects of sound or sound field enhancement and noise reduction. In other embodiments, other numbers of sound pickup devices <NUM> may be adopted, such as one, three or more. The sound pickup device <NUM> may be of any type suitable for the in-ear wearable device, such as a microphone like a micro-electromechanical microphone.

The speaker assembly <NUM> may include a sound output device configured to output sound for the customized in-ear wearable device <NUM>, and the sound output device may be a moving iron speaker, a moving coil speaker, a coil iron speaker, or the like. In order to enable the sound output from the sound output device of the speaker assembly <NUM> to enter the acoustic meatus of the user wearing the customized in-ear wearable device <NUM>, the customized housing <NUM> of the customized in-ear wearable device <NUM> is usually provided with an opening to allow the sound to pass through. In an embodiment, the speaker assembly <NUM> may further include a third sound pickup device configured to detect a frequency response characteristic of the sound output from the sound output device of the speaker assembly <NUM>, thereby adjusting the output of the sound output device based on the frequency response characteristic.

The wireless communication module <NUM> is configured to process the signal of the customized in-ear wearable device <NUM>, so that the customized in-ear wearable device <NUM> can perform wireless communications. The wireless communication module <NUM> may be disposed on the mainboard <NUM> or at other positions. The wireless communication module <NUM> may be a Bluetooth module or any other type of wireless communication module, as long as it can implement the wireless operation of the customized in-ear wearable device <NUM>. The wireless communication module <NUM> may be integrated into a central processing unit (CPU) of the customized in-ear wearable device <NUM>, or may be a separate module.

As described above, the customized housing <NUM> may be manufactured based on an ear mold taken from the user's ear, and the manufacturing method may be 3D printing or any other manufacturing method. In an embodiment, the customized in-ear wearable device <NUM> may further include a ventilation duct provided in the customized housing <NUM> for ventilation when the user wears the customized in-ear wearable device <NUM>. One end of the ventilation duct may be located at a protruding portion of the customized in-ear wearable device <NUM> extending into the external acoustic meatus, and the other end thereof may be located at a portion of the customized housing <NUM> close to the panel <NUM>, so that the ventilation duct can balance the air pressures of the acoustic meatus and the external space when the user wears the customized in-ear wearable device <NUM>, thereby reducing the discomfort caused by an increase of the pressure inside the ear.

In an embodiment, the customized housing <NUM> may include a first protruding portion <NUM> and a second protruding portion <NUM>. When the user wears the customized in-ear wearable device <NUM>, the first protruding portion <NUM> may be located in an external acoustic meatus of the user or an auricular concha cavity and the external acoustic meatus of the user, and the second protruding portion <NUM> may be located in a cymba conchae of the user. <FIG> shows a schematic structural diagram of a user's ear. Referring to <FIG> and the description herein, it is possible to acquire a positional relationship between each part of the customized in-ear wearable device <NUM> and the user's ear when the user wears the customized in-ear wearable device <NUM>. The first protruding portion <NUM> may include an opening, and the speaker assembly <NUM> is located in the first protruding portion close to the opening. That is, the sound output from the sound output device of the speaker assembly <NUM> enters the acoustic meatus of the user through the opening of the first protruding portion <NUM>. In an embodiment, when the user wears the customized in-ear wearable device <NUM>, a projection of the panel <NUM> in a direction of the user's ear is located in a contour of the ear. The contour of the ear here mainly refers to a ranged formed by the outer contour of the ear (e.g., a helix) and a meeting line of the ear and the face. In an embodiment, the projection of the panel <NUM> in a direction of the user's ear is mostly (<NUM>% to <NUM>%) located in the auricular concha cavity of the user, with a small part (<NUM>% to <NUM>%) located in the cymba conchae of the user, and another small part located outside the auricular concha cavity and the cymba conchae while in the contour of the ear.

<FIG> shows an exploded view of a customized in-ear wearable device <NUM> according to an embodiment of the present disclosure. As shown in <FIG>, the customized in-ear wearable device <NUM> according to this embodiment includes a panel assembly <NUM> and a customized housing <NUM>. The panel assembly <NUM> may include a panel <NUM>, a mainboard <NUM>, a manipulation device <NUM>, a charging device <NUM>, a battery <NUM>, an antenna device <NUM>, a magnet <NUM>, a sound pickup device <NUM>, a speaker assembly <NUM>, a wireless communication module <NUM> (not shown), and the like. Except for the mainboard <NUM>, the panel assembly <NUM>, the panel <NUM>, the manipulation device <NUM>, the charging device <NUM>, the battery <NUM>, the antenna device <NUM>, the magnet <NUM>, the sound pickup device <NUM>, the speaker assembly <NUM>, and the wireless communication module <NUM> shown in <FIG> may be similar to the panel assembly <NUM>, the panel <NUM>, the manipulation device <NUM>, the charging device <NUM>, the battery <NUM>, the antenna device <NUM>, the magnet <NUM>, the sound pickup device <NUM>, the speaker assembly <NUM>, and the wireless communication module <NUM> shown in <FIG>, and the detailed descriptions thereof are omitted here for clarity.

As shown in <FIG>, the mainboard <NUM> may be a folded circuit board or a flexible circuit board, which may at least partially surround the battery <NUM>. By adopting the folded circuit board or the flexible circuit board, the arrangement flexibility of the components can be improved, and the spaces occupied by the components can be reduced.

Although the technical solutions of the present disclosure have been described in detail as above through the customized in-ear wearable device, those skilled in the art will appreciate that the above technical solutions can also be adopted for non-customized in-ear wearable devices. When the in-ear wearable device is of the non-customized type, both the panel assembly and the housing may be non-customized components, i.e., standard-sized components. In the case of the non-customized in-ear wearable device, by adopting the technical solutions of the present disclosure, the spaces occupied by the components such as the manipulation device and the charging device can also be reduced, thereby reducing the sizes of the panel assembly and the device.

Obviously, the above embodiments of the present disclosure are merely examples for clearly explaining the present disclosure, rather than limitations to the embodiments of the present disclosure. For those skilled in the art, other different forms of changes or modifications can be made based on the above descriptions. It is unnecessary and also impossible to exhaust all the embodiments here.

Claim 1:
A panel assembly (<NUM>, <NUM>) of an in-ear wearable device, the panel assembly (<NUM>, <NUM>) comprising a panel (<NUM>, <NUM>), a mainboard (<NUM>, <NUM>), a touchpad (<NUM>, <NUM>), a charging device (<NUM>, <NUM>), a battery (<NUM>, <NUM>), an antenna device (<NUM>, <NUM>), a sound pickup device (<NUM>, <NUM>), a speaker assembly (<NUM>, <NUM>), and a wireless communication module (<NUM>, <NUM>), wherein:
the touchpad (<NUM>, <NUM>) is operable from above the panel (<NUM>, <NUM>) to implement a function of the in-ear wearable device without generating mechanical motion, and the charging device (<NUM>, <NUM>) is a device that can charge the in-ear wearable device from above the panel (<NUM>, <NUM>);
in a plane perpendicular to the panel (<NUM>, <NUM>) or the touchpad (<NUM>, <NUM>), an orthographic projection of the touchpad (<NUM>, <NUM>) partially overlaps an orthographic projection of the charging device (<NUM>, <NUM>);
in a plane where the panel (<NUM>, <NUM>) or the touchpad (<NUM>, <NUM>) is located, a minimum circumscribed circle of the orthographic projection of the touchpad (<NUM>, <NUM>) at least partially overlaps a minimum circumscribed circle of the orthographic projection of the charging device (<NUM>, <NUM>), and
wherein the charging device (<NUM>, <NUM>) comprises a plurality of charging pins, and the panel (<NUM>,<NUM>) comprising openings into which the charging pins extend, and wherein the touchpad (<NUM>,<NUM>) comprises through-holes and/or recesses through which the charging pins pass into said openings in the panel (<NUM>,<NUM>).