CN217388954U - Wireless listening device - Google Patents

Abstract

The utility model relates to a wireless listening device, include: a housing (300) positionable at an external ear canal and a concha cavity of a wearer; a top cover (100, 200) closing the housing at the end of the wireless listening device and configured with a protrusion (111, 211); an acoustic module (400) which is arranged within an accommodation space formed by the housing and the top cover, and which includes a first microphone (482), wherein the protrusion is configured with a first microphone channel (114, 214) including a first section, a second section, and a third section, wherein the first section communicates at one end with a sound pickup hole of the first microphone and communicates at the other end with the second section and the third section, respectively, an end of the second section remote from the first section communicates with the outside of the accommodation space at an end face of the protrusion, and an end of the third section remote from the first section communicates with the outside of the accommodation space at a side face of the protrusion.

Description

Wireless listening device

Technical Field

The utility model relates to a wireless listening device.

Background

With the development of science and technology, the use habits of people on digital products change and the consumption level of entertainment culture improves, and the dependence of people on the in-ear wireless listening devices is higher and higher. In this context, in-ear wireless listening devices that incorporate high quality noise reduction functions have also become a market demand.

The dual-microphone noise reduction technology is a current common call noise reduction technology, the speaking direction of a user can be accurately calculated through a dual-microphone array and a corresponding dual-microphone noise reduction algorithm, and various interference noises in the environment are removed while target voices in the main direction are protected. For this purpose, it is necessary to pick up a speech signal and a noise signal with one microphone and a noise signal with the other microphone in a two-microphone array. Here, the sound pickup direction of the microphone for picking up a voice signal and a noise signal, also called a call microphone, is preferably a direction from the mouth toward the ear of the user; the pick-up direction of the microphone for picking up noise signals, also called noise reduction microphone, is approximately in the horizontal direction, wherein the pick-up direction of the noise reduction microphone and the pick-up direction of the call microphone are preferably perpendicular to each other and the distance between the noise reduction microphone and the call microphone should be as large as possible, thereby increasing the signal-to-noise ratio and improving the call noise reduction effect.

However, with the trend towards miniaturization of in-ear wireless listening devices, many electronic components, including the two-microphone array, need to be located in a limited area on the side of the wireless listening device remote from the ear canal of the user. On the one hand, this increases the difficulty of configuring different pickup directions of different microphones in a dual-microphone array; on the other hand, the sound pick-up performance of the noise reduction microphone may be disturbed when the user operates the in-ear wireless listening device, and the noise reduction performance of the in-ear wireless listening device may be affected thereby.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wireless listening equipment, it can improve under the whole condition that has less structure of wireless listening equipment and converse and fall the performance of making an uproar.

In order to achieve the above object, the present invention provides a wireless listening device, comprising:

a housing capable of being placed at the external auditory meatus and the concha cavity of the wearer,

a top cover closing the housing at an end of the wireless listening device and configured with a protrusion,

an acoustic module disposed within a receiving space formed by the housing and the top cover, and including a first microphone,

wherein the projection is configured with a first microphone passage including a first section communicating at one end with a pickup hole of the first microphone and communicating at the other end with the second section and the third section, respectively, an end of the second section remote from the first section communicating with the outside of the accommodating space at an end face of the projection, and an end of the third section remote from the first section communicating with the outside of the accommodating space at a side face of the projection.

In some embodiments, the protrusion is configured with a dust cap receiving groove disposed at an end of the second section distal from the first section.

In some embodiments, the first and second sections extend in a direction perpendicular to the overall plane of extension of the cap, and the third section extends in a direction perpendicular to the direction of extension of the first and second sections.

In some embodiments, the projection is configured with a central projection and a first lug portion arranged at the periphery of the central projection, wherein the acoustic module comprises a handling device and a charging device, which are at least partially accommodated within the central projection, the first microphone channel being configured at the first lug portion.

In some embodiments, the first lug portion is configured with a first microphone receiving groove that at least partially receives the first microphone.

In some embodiments, the acoustic module further comprises a second microphone, and the protrusion is configured with a second microphone channel, wherein one end of the second microphone channel communicates with a sound pickup hole of the second microphone, and the other end of the second microphone channel is provided at a side of the protrusion.

In some embodiments, the second microphone channel is integrally configured in an L-shape.

In some embodiments, the projection is configured with a central projection and a second lug portion arranged at the periphery of the central projection, wherein the acoustic module comprises a steering device and a charging device, which are at least partially accommodated within the central projection, the second microphone channel being provided at the second lug portion.

In some embodiments, the second tab portion is configured with a second microphone receiving slot that at least partially receives the second microphone.

In some embodiments, the manipulation device is configured as a substantially flat touch pad, and the charging device includes a charging pin, wherein an orthographic projection of the touch pad and an orthographic projection of the charging pin partially overlap in a plane perpendicular to the touch pad, and wherein a smallest circumscribed circle of the orthographic projection of the touch pad and the orthographic projection of the charging pin at least partially overlap in a plane parallel to the touch pad.

In some embodiments, the housing is a housing customized to the ear of the wearer, wherein the outer contour of the housing at least partially matches the shape of the external auditory meatus and the concha cavity of the wearer.

In some embodiments, the top cover is further configured with a joining portion, wherein the joining portion is disposed around the protruding portion and extends toward an opening edge of the case.

According to the utility model discloses, through the microphone passageway design that the structure of first microphone has three district section, first microphone passageway has towards not equidirectional open-ended pickup entry to avoid the user to disturb first microphone passageway because of the mistake touches when controlling wireless listening device, reduce the influence to the pickup effect of first microphone from this, and then avoid influencing noise reduction effect. Additionally, by integrating the second microphone channel with a bent structure at the top cover of the wireless listening device, a good noise reduction effect for a call can be achieved with a compact arrangement of the microphone array in a small structural space.

Drawings

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

Fig. 1 is a perspective view of a housing assembly of a wireless listening device according to one embodiment.

Fig. 2 is a perspective view of an acoustic module of a wireless listening device according to an embodiment.

FIG. 3 is a perspective view of a top cover according to one embodiment.

Fig. 4 is a cross-sectional view of a top cover at a first microphone channel according to one embodiment.

Fig. 5 is a cross-sectional view of a top cover at a first microphone channel according to a variant embodiment.

Fig. 6 is a cross-sectional view of a top cover at a second microphone channel according to one embodiment.

Fig. 7 is a cross-sectional view of a top cover at a second microphone channel according to a variant embodiment.

Fig. 8 is a first perspective view of a top cover according to another embodiment.

Fig. 9 is a second perspective view of a top cover according to another embodiment.

Detailed Description

Embodiments of the present invention will be described below with reference to the accompanying drawings. In the respective drawings, the same or similar components are denoted by the same or similar reference numerals, and a repetitive description thereof is omitted for the sake of simplicity.

In some embodiments, the wireless listening device is configured as a wireless headset. In some embodiments, the Wireless listening device is configured as a TWS (True Wireless Stereo) headset. The structure of the single body for wearing in the left ear of the user in a wireless listening device is only exemplarily shown in the following figures, however, it will be understood by those skilled in the art that a wireless listening device can comprise two single bodies used in pairs respectively worn in the left and right ears of the user, which are substantially symmetrically configured in structure and are not connected to each other by conventional physical wires. For simplicity of explanation, only the structure of one single body in the wireless listening device will be explained with reference to the drawings.

The wireless listening device comprises a casing assembly and an acoustic module 400 arranged in the accommodation space formed by the casing assembly.

Referring to fig. 1, the housing assembly includes a housing 300 configured with a receiving cavity 301 and a cover 100 closing the receiving cavity 301 at the end of the wireless listening device, thereby forming a receiving space for receiving an acoustic module 400 by the housing 300 and the cover 100 being connected to each other. In some embodiments, the top cover 100 and the housing 300 are connected to each other in a snap-fit or like form-fit manner and/or an interference fit manner and/or by means of an adhesive and/or by means of a separate connecting member.

The housing 300 can be placed at the external auditory meatus and the concha cavity of the wearer. In some embodiments, referring to fig. 1, the housing 300 can be customized to the user's ear such that the outer contour of the housing 300 partially matches the shape of the user's external auditory meatus and concha cavity. In some embodiments, the housing 300 can penetrate into the outer region of the external ear canal of the wearer and can be supported at the concha cavity as well as the cymba concha. In some embodiments, the housing 300 additionally matches the user's cymba concha or a portion of a cymba concha. Therefore, the wireless listening device is not easy to fall off, and cannot cause local oppression to the ears of a user, so that the wearing comfort is improved. In addition, because the customized shell 300 has a high degree of fitting with respect to the external auditory canal and the concha cavity of the user, the wireless listening device has a good sound insulation effect, and is not easily interfered by external environment noise particularly in a listening scene, such as when the user is listening to music or talking, thereby forming a good passive noise reduction effect.

The cap 100 is located at the end of the wireless listening device remote from the external auditory canal of the user when the wireless listening device is worn by the user. In some embodiments, the cap 100 is constructed of a non-metallic material. In some embodiments, the top cover 100 comprises at least one of an ABS material, a PC material, a PET material, and a ceramic. In some embodiments, the top cover 100 is constructed of an ABS material, a PC/PET composite, an ABS/PC composite, or a ceramic. The structure of the top cover will be described in detail later in conjunction with fig. 3 to 9.

The acoustic module 400 is used to implement a variety of acoustic functions. The acoustic module 400 can be accommodated in the accommodating space formed by the case 300 and the top cover 100, and thus the acoustic module 400 is protected and supported. In some embodiments, referring to fig. 2, the acoustic module 400 of the wireless listening device includes a control unit 430, a charging unit 440, a microphone, an antenna 460, a battery, a speaker 490, and a motherboard 420 integrated with a chip electrically connected to the above components.

In some embodiments, components such as the control device 430, the charging device 440, the microphones 482 and 481, and the antenna 460 that need to interact with or communicate with the outside world (the component on the upper side in the orientation shown in fig. 2) are arranged at the outer end of the wireless listening device, i.e. the end that is away from the ear canal of the user when the user wears the wireless listening device. In this case, the housing 300 of the wireless listening device can be configured in some embodiments as a customized housing to the ear of the user, so that the designer does not need to individually adjust the positions of the components such as the steering device 430, the charging device 440, the antenna 460, the microphones 482 and 481 for different customized housings of different users, thereby eliminating additional design expense.

In some embodiments, the motherboard 420 can support one or at least two of the components in the acoustic module 400. In some embodiments, referring to FIG. 2, motherboard 420 is a rigid motherboard. In some embodiments, the main board is configured as a folding type circuit board or a flexible circuit board. In some embodiments, the Central Processing Unit (CPU) of the wireless listening device is integrated at the motherboard 420. In some embodiments, the motherboard 420 may be electrically connected to the components of the acoustic module 400 by printed wiring, leads, flying leads, ball-shaped pins, and the like.

In some embodiments, referring to fig. 2, the operation device 430 is configured as a touch pad having a substantially flat plate shape, so as to provide better experience and science for users and reduce discomfort caused by pressing the key with force compared with a mechanical key switch. In some embodiments, the touch pad may be a device for implementing touch control by changing parameters such as resistance or capacitance of a touch unit on the touch pad through a body part such as a finger, and is different from mechanical control devices such as a mechanical knob or a mechanical switch in that the touch pad does not usually generate visible mechanical motion to implement the operation of the touch pad. In addition to using techniques that vary parameters such as resistance or capacitance, other touch technologies may be used in some embodiments, as long as they enable operation of the touch pad from outside the wireless listening device in the presence of the top cover 100.

In some embodiments, the charging device 440 includes a charging pin 441. In this case, the top cover 100 is configured with a through hole 113 (see fig. 3) through which the charging pin extends, whereby the wireless listening device can be charged by the end of the charging pin 441 exposed to the top cover 100. In the case of a wireless listening device having a top cover, the end of the charging pin 441 exposed to the top cover 100 may be higher than, flush with, or slightly lower than the outer surface of the top cover, where the outer surface of the top cover refers to the surface of the top cover 100 facing away from the acoustic module 400. In some embodiments, referring to fig. 2, the charging pin 441 may be configured as a cylinder having a circular cross-section. In other embodiments, the charging pin may be configured as a cylinder having a non-circular cross-section, wherein the cross-section of the cylinder may be a variety of shapes as a whole, such as a straight line segment, an arc segment, a broken line segment, a curved line segment, and the like. In some embodiments, the charging pin 441 extends linearly in a longitudinal direction thereof, for example, in the embodiment shown in fig. 2, the charging pin 441 extends linearly in a direction perpendicular to the manipulation device. In some further embodiments, the charging pin can extend in its longitudinal direction in an arc and/or a fold. In some embodiments, the charging device includes at least one charging pin serving as a positive terminal and at least one charging pin serving as a negative terminal, wherein the respective charging pins may be identically or differently configured in shape and/or size. In some embodiments, referring to fig. 2, the charging pins 441 are supported by a dedicated support member 442, such as a support plate, wherein the support member enables electrical connection of charging pins of the same polarity (e.g., positive or negative) to become an integral part of the current path during charging. In some embodiments, the charging pins are supported by a member with other functions, such as a motherboard of an acoustic module, and electrical connections to charging pins of the same polarity are made. In some embodiments, the charging pin may be rigidly supported, e.g., fixedly mounted on a support member. In some embodiments, the charging PINs may be resiliently supported, for example in the form of POGO PINs (also known as POGO PINs) mounted on a support member, so that the contact is more stable when in contact with the contacts of the charging stand.

In some embodiments, the orthographic projection of the touch pad 430 and the orthographic projection of the charging pins 441 partially overlap in a plane perpendicular to the touch pad 430, and the smallest circumscribed circle of the orthographic projection of the touch pad 430 and the orthographic projection of the charging pins 441 at least partially overlap in a plane parallel to the touch pad 430. Here, the minimum circumscribed circle of the orthographic projection of the charging pin 441 in the plane parallel to the touch pad 430 can be understood as: in a plane parallel to the touch panel 430, a minimum circle of the outer contour of the pattern collectively composed of orthographic projections of all the charging pins 441 can be accommodated. It should be noted that, because the charging pins have a three-dimensional structure, the minimum circumscribed circle should accommodate the complete planar shape of the orthographic projection of each charging pin, rather than passing through the center of the planar shape of the orthographic projection of the charging pin. Here, in the plane of the manipulation device 430, the minimum circumscribed circle of the orthographic projections of all the charging pins 441 can partially overlap or completely coincide with the manipulation device 430; the minimum circumscribed circle of the orthographic projection of all the charging pins 441 can fall within the range of the manipulation device 430; or the manipulation device 430 falls within the range of the minimum circumscribed circle of the orthographic projection of all the charging pins 441. To this end, in some embodiments, referring to fig. 2 and 3, the touch pad 430 is configured with a through hole, and one or at least two of the charging pins 441 can extend from the supporting member 442 thereof through the through hole of the touch pad 430 and the through hole 113 at the top cover 100 in sequence. In some embodiments, the touch pad is configured at its edges with a recess recessed towards the central position of the touch pad, and one or at least two of the charging pins can extend from its support member through the recess of the touch pad and the through hole at the top cover in sequence. In further exemplary embodiments, the touch panel 430 is not additionally provided with cutouts, for example through holes or recesses, through which the charging pins can pass, and the touch panel 430 has, for example, a circular, oval or similar shape, wherein one or at least two of the charging pins can extend from the support element, in turn past the side of the touch panel and through the through holes at the top cover. In this case, a compact arrangement in the direction perpendicular and parallel to the operating device 430 can be achieved, so that the wireless listening device can have a compact and slim construction, in particular at its end remote from the ear canal of the user, with high wearing comfort for the user and with little tendency to fall off.

The acoustic module 400 comprises at least one microphone, i.e. the acoustic module 400 comprises at least a first microphone 482. In some embodiments, referring to fig. 2, the acoustic module 400 includes two microphones, a first microphone 482 and a second microphone 481.

In this case, the first microphone 482 and the second microphone 481 can be arranged in an acoustic module such that the entire wireless listening device has a smaller dimension in at least one direction, for example in a direction approximately perpendicular to the operating device 430. In this case, the sound pickup hole of the first microphone 482 and the sound pickup hole of the second microphone 481 can be bored in any possible directions depending on the arrangement form of the microphones and the positions of the bored holes on the corresponding microphones.

In some embodiments, referring to fig. 2, first microphone 482 and second microphone 481 can be arranged such that the respective shortest edges of first microphone 482 and second microphone 481, which are substantially cuboid in shape, extend substantially in a direction perpendicular to steering device 430, so that the wireless listening device as a whole does not protrude too far out of the concha cavity of the user when the wireless listening device is worn by the user. In this case, the sound pickup hole of the first microphone 482 and the sound pickup hole of the second microphone 481 are both open in a horizontal direction when the wireless listening device is worn by the user.

In some embodiments, referring to fig. 2, the first microphone 482, the second microphone 481 are both fixed at a planar section of the motherboard 420. In this case, the first microphone 482 and the second microphone 481 are arranged offset with respect to the control device 430 and the charging device 440 in a direction parallel to the plane of extent of the control device 430. In some embodiments, the first and second microphones 482 and 481 are respectively accommodated in a microphone accommodating chamber formed by the cover and the main board 420 together, so that the first and second microphones 482 and 481 can be protected by the cover. In further embodiments, the first microphone 482, the second microphone 481 can be supported by additional components in the acoustic module 400 or by the housing 300 or the top cover 100. It is to be appreciated that the first and second microphones 482 and 481 may be substantially identically constructed or differently constructed.

Here, it is understood that the acoustic module 400 may include other numbers of microphones, such as one microphone, three or more microphones. In embodiments where there are three or more microphones, additional microphones, different from the first microphone 482, the second microphone 481, can be placed at reasonable locations of the wireless listening device as desired. In some embodiments, additional microphones can be disposed at the ends of the wireless listening device distal from the ear canal of the user along with the first and second microphones 482, 481. In some embodiments, a further microphone can be arranged beside the sound outlet aperture of the loudspeaker 490, wherein one of the first and second microphones, e.g. the second microphone 481, can be used as a speech microphone picking up speech signals in a speech Noise reduction technique, e.g. ENC (Environmental Noise Cancellation) technique, the other of the first and second microphones, e.g. the first microphone 482, can be used as a speech Noise reduction microphone picking up speech signals and Noise signals in a speech Noise reduction technique, e.g. ENC (Environmental Noise Cancellation) technique, and as a feed-forward microphone in an Active Noise Cancellation technique, e.g. compound Noise Cancellation technique, the further microphone can be used as a feed-back microphone in an Active Noise Cancellation technique, e.g. such that the wireless listening device can implement the ENC Noise reduction technique and the Noise reduction technique by means of three microphones, the noise reduction capability of the wireless listening device can thereby be improved as a whole.

In some embodiments, referring to fig. 2, the antenna 460 is configured as a sheet of metal that extends in an arc. In some embodiments, the metal sheet forming the antenna can be supported on the motherboard 420 or at the top cover 100, for example. In some embodiments, the antenna is configured as a metal line formed at an inner side surface of the top cover 100, i.e., a surface facing the receiving space. Here, the antenna is formed on the inner surface of the housing assembly by, for example, plastic thermal melting, laser etching, or the like.

In some embodiments, referring to fig. 2, the battery of the wireless listening device (obscured in fig. 2) may be arranged on the side of the main board 420 facing the external auditory canal of the user (the lower side of the orientation shown in fig. 2) so as not to occupy the limited space of the wireless listening device at the outer end.

In some embodiments, referring to fig. 1, the speaker 490 is disposed at a location proximate to the external ear canal of the user. The speaker 490 is, for example, a moving iron horn or a moving coil horn. The utility model discloses do not carry out further injeciton to the speaker.

In some embodiments, referring to fig. 2, the wireless listening device also optionally includes a magnet 470 to facilitate stable contact of the wireless listening device with the charging cradle when the wireless listening device is charging. In some embodiments, referring to fig. 2, the magnet 470 can be disposed on a side of the main plate 420 facing away from the user's external ear canal (the upper side of the orientation shown in fig. 2). In some embodiments, referring to fig. 2, a magnet 470 can be disposed between the motherboard 420 and the charging device 440.

In some embodiments, referring to fig. 2, battery 150 is disposed at a central location in the interior space of the wireless listening device. In the interior space of the wireless listening device, a speaker 490 is disposed at a location proximate to the external ear canal of the user. The utility model discloses do not carry out further injecing to battery and speaker.

Returning now to the description of the top cover 100 of the housing assembly of the wireless listening device.

In some embodiments, referring to fig. 3, the top cover 100 is formed with a protrusion 111 and a coupling portion 112, wherein the coupling portion 112 is disposed around the protrusion 111 and extends toward an opening edge of the case 300 in an assembled state with the case 300. Here, an end surface of the projection 111, that is, an outer surface away from the accommodation space formed by the housing assembly, projects from the engagement portion 112. In some embodiments, the engagement portion 112 is configured as a substantially annular plate-like section, which forms a connection from an edge of the projection 111 close to the housing 300 to an opening edge of the receiving chamber 301 of the housing 300.

In some embodiments, projection 111 includes a central projection 111a and at least one lug portion 111b, 111c disposed at the periphery of central projection 111 a. Here, it is possible for the lug parts 111b, 111c to be arranged at the periphery of the central projection 111a at a spacing relative to the central projection 111a, wherein, in particular, the lug parts 111b, 111c and the central projection 111a, viewed from the outside of the top cover 100, form a mutually independent projecting structure at the top cover 100. It is also possible, with reference to fig. 3, for the lug parts 111b, 111c to project from the outer periphery of the central projection 111a towards the outer periphery, that is to say for the lug parts 111b, 111c to be formed at the outer periphery of the central projection 111a in the immediate vicinity of the central projection 111a, wherein, in particular when viewed from the outside of the top cover 100, the lug part 113 and the central projection 111a together form an integral projecting structure at the top cover 100.

In some embodiments, referring to fig. 3, the projecting portion 111 includes a central projecting portion 111a and two lug parts, i.e., a first lug part 111b and a second lug part 111c, projecting from the outer periphery of the central projecting portion 111a toward the outer side of the outer periphery.

Here, the receiving groove formed by the central protrusion 111a can be used to receive the manipulation device 430 and the charging device 440. The handling device 430 and the charging device 440 are at least partially accommodated in an accommodating groove formed by the central projection 111 a. Here, "at least partially accommodating" means in particular that at least one of the handling device 430 and the charging device 440 can extend beyond the accommodating groove in a direction perpendicular to the handling device 430. In some embodiments, the central protrusion 111a has a substantially circular, elliptical or polygonal shape, or a composite pattern formed by splicing patterns of different sizes and/or shapes, for example, by splicing circular arcs of different diameters, as viewed in a direction perpendicular to the manipulation device.

Particularly in the embodiment in which the charging device 440 includes the charging pin 441, the central protrusion 111a of the top cover 100 is configured with a through hole 113 through which the charging pin 441 of the charging device 440 extends, thereby enabling the wireless listening device to be charged by the end of the charging pin exposed to the top cover 100.

Particularly in the embodiment in which the manipulation device 430 is configured as a touch pad, the end surface of the central protrusion 111a extends substantially in a planar shape, thereby facilitating stable operation of the manipulation device 430. In some embodiments, the end surface of the central protrusion 111a can extend substantially planar in a substantially circular, elliptical, or polygonal shape. In some embodiments, the end face of the central protrusion 111a is configured to be flat or slightly curved. In some embodiments, the end surface of the central protrusion 111a is smoothly configured or textured. However, it will be appreciated by those skilled in the art that the design at the end face of the central protrusion 111a should be premised on not affecting the operation of the manipulation device by the user.

Here, the antenna 460 of the acoustic module can be disposed at the side wall of the accommodation groove formed by the central protrusion 111a, thereby contributing to an improvement in the ability of the antenna of the wireless listening device to transmit and receive signals. In some embodiments, the antenna is configured as a metal line formed at a sidewall of the receiving groove. In some embodiments, the antenna 460 is configured as a metal sheet extending along the side walls of the receiving slot.

In some embodiments, referring to fig. 4 and 5, the first lug part 111b forms a recess, i.e. the first microphone receiving groove 117, which is open towards the interior of the wireless listening device, the first microphone 482 can be at least partially arranged in the first microphone receiving groove 117.

In some embodiments, referring to fig. 3, 4 and 5, a microphone channel for communicating the pick-up hole of the first microphone 482 with the outside of the wireless listening device, i.e., first microphone channel 114, is configured at first lobe portion 111 b. The first microphone channel includes a first section 114a, a second section 114b, and a third section 114c, wherein the first section 114a communicates at one end with the sound pickup hole of the first microphone 482 and communicates at the other end with the second section 114b and the third section 114c, respectively, an end of the second section 114b remote from the first section 114a communicates with the outside of the accommodating space at an end surface of the projection 111, and an end of the third section 114c remote from the first section 114a communicates with the outside of the accommodating space at a side surface of the projection 111. Here, in case the user wears the wireless listening device, ambient sound picked up, for example for noise reduction, can enter the second section 114b of the first microphone channel 114 substantially in horizontal direction and be transmitted via the first section 114a to the pick-up hole of the first microphone 482. When the user operates the wireless listening device, the finger touches the protrusion 111 of the top cover 100 to operate the manipulation device 430. At this time, the entrance of the first microphone channel 114 at the end face of the protrusion 111, that is, the port of the second section 114b at the end face of the protrusion 111 may be disturbed by a false touch. Since the first microphone channel according to the present embodiment is configured with the third section 114c, external sound can also enter the first microphone channel 114 through the inlet of the first microphone channel 114 at the side of the protruding portion 111, for example, at the side surface of the first lug portion 111b, that is, the port of the third section 114c at the end surface of the protruding portion 111, so that the user does not interfere with the first microphone channel due to accidental touch when operating the wireless listening device, thereby reducing the influence on the sound pickup effect of the first microphone and further avoiding the influence on the noise reduction effect.

In some embodiments, first section 114a and second section 114b extend in a direction perpendicular to the overall plane of extension of top cover 100, such that first section 114a and second section 114b extend generally in a horizontal direction when the wireless listening device is worn by a user. In some embodiments, the extension direction of the third section 114c is perpendicular to the extension direction of the first section 114a and the second section 114b, such that the third section 114c extends substantially in a direction perpendicular to the horizontal direction in case the wireless listening device is worn by a user. In this case, the first microphone 482 can be arranged such that the sound pickup hole of the first microphone 482 opens in the horizontal direction when the wireless listening device is worn by the user, so that the acoustic module can have a compact structure. However, it will be understood by those skilled in the art that the sound-collecting hole of the first microphone 482 is not necessarily open in the horizontal direction, and if the sound-collecting hole of the first microphone 482 is open in a direction other than the horizontal direction, the first microphone 482 can be communicated with the outside of the wireless listening device by appropriately arranging the first microphone channel 114, and thus it is only necessary to form a sound inlet on both the end face and the side face of the protrusion.

In some embodiments, referring to fig. 5, the interior of the first microphone channel 114', particularly at the intersection of the first and second sections and the first and third sections, is provided with a rounded structure.

In some embodiments, referring to fig. 3, 4 and 5, the protrusion 111, here the first protrusion 111b, is configured with a dust cap receiving groove 114d, the dust cap receiving groove 114d being arranged at an end of the second section 114b of the first microphone channel 114 distal from the first section 114 a. A dust cover 116 can be placed in the dust cover receiving groove 114d, so that foreign substances such as dust can be prevented from entering the first microphone passage 114.

In some embodiments, referring to fig. 6 and 7, the second lug part 111c forms a recess that opens towards the interior of the wireless listening device, i.e. the second microphone receiving groove 118, in which the second microphone 481 can be at least partially arranged.

In some embodiments, referring to fig. 3, 6 and 7, a microphone channel for communicating the pick-up port of second microphone 481 with the exterior of the wireless listening device, i.e., second microphone channel 115, 115', is configured at second lobe portion 111 c. One end portion of the second microphone channel 115, 115 'communicates with the sound pickup hole of the second microphone 481, and the other end portion of the second microphone channel 115, 115' is provided at the side of the projection 111. With the aid of the above-described specially configured second microphone channels 115, 115', the pick-up direction of the second microphone 481, for example, for picking up speech signals and noise signals, can be a direction from the mouth of the user towards the ear, which is advantageous according to a noise reduction algorithm, in the case of a wireless listening device worn by the user. Here, the orientation of the sound pickup hole of the second microphone 481 is not necessarily a direction from the user's mouth toward the corresponding ear, and the second microphone 481 can be more flexibly arranged in the acoustic module 400, thereby conveniently realizing a more compact structure of the acoustic module 400. Furthermore, forming the second microphone channels 115, 115' directly by the top cover 100 itself also enables a good noise reduction effect for a call with a compact arrangement of the microphone array, compared to a solution in which the second microphone channels are formed by another member.

In some embodiments, the second microphone channel 115, 115' is integrally configured in an L-shape. The second microphone channel 115, 115' here forms two sections arranged approximately perpendicular to one another. Here, a section of the second microphone channel 115, 115' close to the second microphone 481 can extend substantially in a direction perpendicular to the general extension plane of the top cover 100, such that this section extends substantially in a horizontal direction in case of a user wearing the wireless listening device. In this case, the second microphone 481 can be arranged such that the sound pickup hole of the second microphone 481 is opened toward the horizontal direction when the wireless listening device is worn by the user, so that a more compact structure of the acoustic module 400 can be conveniently realized. However, as will be understood by those skilled in the art, the sound collecting hole of the second microphone 481 does not necessarily have to be opened in the horizontal direction, and if the sound collecting hole of the second microphone 481 is opened in a direction other than the horizontal direction, the second microphone 481 can be communicated with the outside of the wireless listening device by appropriately arranging the second microphone channels 115 and 115', and here, it is only necessary to form a sound inlet on the side of the protruding portion.

In some embodiments, referring to fig. 7, a rounded structure is provided inside the second microphone channel 115', in particular at the intersection of two sections with different directions of extension.

Fig. 8 and 9 show a further embodiment which differs from the previous embodiments in the construction of the top cover 200, it being understood that other configurations of the wireless listening device may refer to one or more of the previous embodiments. In some embodiments, the top cover 200 does not have a splice as described in previous embodiments, see the top cover outside view shown in fig. 8 and the top cover inside view shown in fig. 9. In this case, the housing 300 can be configured with a constriction at the edge of the receiving chamber 301. When the housing 300 is closed by the top cover 200, the constriction extends at least partially in a plane parallel to the end face of the projection 211 towards the top cover 200, so that the projection 211 forms a convex structure relative to the constriction.

It is to be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

List of reference numerals

100 top cover

111 bulge

111a central bulge

111b first ear (corresponding first microphone, feedforward microphone)

111c second ear (corresponding to second microphone, communication microphone)

112 joining part

113 through hole

114, and a carrier; 114' first microphone channel

114a first section

114b second section

114c third section

114d dust cover receiving groove

115, 115; 115' second microphone channel

116 dust cover

117 first microphone holding tank

118 second microphone receiving groove

210 Top cover

211 lobe

211a central bulge

211b first lug part

211c second lug part

213 through hole

214 first microphone channel

214a first section

214b second section

214c third section

214d dust cover receiving groove

215 second microphone channel

217 first microphone holding tank

218 second microphone receiving groove

219 primary receiving groove

300 casing

301 inner cavity

400 acoustic module

420 mainboard

430 operating device

440 charging device

441 charging needle

442 support member

460 antenna

470 magnet

481 second microphone

482 first microphone

490 loudspeaker

Claims (12)

1. A wireless listening device comprising:

a housing (300) capable of being placed at the external auditory meatus and the concha cavity of a wearer,

a top cover (100, 200) closing the housing at the end of the wireless listening device and configured with a protrusion (111, 211),

an acoustic module (400) arranged within a receiving space formed by the housing (300) and the top cover (100, 200), and the acoustic module (400) comprising a first microphone (482),

wherein the bulge (111, 211) is configured with a first microphone channel (114, 214) comprising a first section (114a, 214a), a second section (114b, 214b) and a third section (114c, 214c), wherein,

the first section (114a, 214a) communicates at one end with a pick-up aperture of the first microphone (482) and at the other end with the second section (114b, 214b) and the third section (114c, 214c), respectively,

an end of the second section (114b, 214b) remote from the first section (114a, 214a) communicates with the outside of the accommodation space at an end face of the projection (111, 211),

an end of the third section (114c, 214c) remote from the first section (114a, 214a) communicates with the outside of the accommodation space at a side of the projection (111, 211).

2. Wireless listening device according to claim 1, wherein the protrusion (111, 211) is configured with a dust cover receiving groove (114d, 214d), the dust cover receiving groove (114d, 214d) being arranged at an end of the second section (114b, 214b) remote from the first section (114a, 214 a).

3. Wireless listening device according to claim 1, wherein the first section (114a, 214a) and the second section (114b, 214b) extend in a direction perpendicular to the general extension plane of the top cover (100, 200), and the third section (114c, 214c) extends in a direction perpendicular to the extension direction of the first section (114a, 214a) and the second section (114b, 214 b).

4. Wireless listening device according to claim 1, wherein the projection (111, 211) is configured with a central projection (111a, 211a) and a first lug part (111b, 211b) arranged at the periphery of the central projection (111a, 211a),

wherein the acoustic module (400) comprises a steering device (430) and a charging device (440), the steering device (430) and the charging device (440) being at least partially accommodated within the central protrusion (111a, 211a), the first microphone channel (114, 214) being configured at the first lug portion (111b, 211 b).

5. Wireless listening device according to claim 4, wherein the first lug part (111b, 211b) is configured with a first microphone accommodation groove (117, 217) for at least partially accommodating the first microphone (482).

6. The wireless listening device of claim 1, wherein the acoustic module (400) further comprises a second microphone (481), the projection (111, 211) being configured with a second microphone channel (115, 215), wherein one end of the second microphone channel (115) communicates with a pickup aperture of the second microphone (481), and the other end of the second microphone channel (115) is arranged at a side of the projection (111, 211).

7. Wireless listening device according to claim 6, wherein the second microphone channel (115, 215) is overall configured in an L-shape.

8. Wireless listening device according to claim 6, wherein the projection (111, 211) is configured with a central projection (111a, 211a) and a second lug part (111c, 211c) arranged at the periphery of the central projection (111a, 211a),

wherein the acoustic module (400) comprises a steering device (430) and a charging device (440), the steering device (430) and the charging device (440) being at least partially accommodated within the central protrusion (111a, 211a), the second microphone channel (115, 215) being provided at the second lobe part (111c, 211 c).

9. The wireless listening device of claim 8, wherein the second lug part (111c, 211c) is configured with a second microphone receiving groove (118, 218) at least partially accommodating the second microphone (481).

10. Wireless listening device according to claim 4 or 8, wherein the manipulation means (430) is configured as a substantially flat touch pad, the charging means (440) comprising a charging pin (441),

wherein an orthographic projection of the touch pad and an orthographic projection of the charging pins partially overlap in a plane perpendicular to the touch pad,

wherein, in a plane parallel to the touch pad, minimum circumcircles of orthographic projections of the touch pad and the charging pins at least partially overlap.

11. The wireless listening device of claim 1, wherein the housing (300) is a housing customized to the ear of the wearer, wherein the outer contour of the housing at least partially matches the shape of the external auditory canal and the concha cavity of the wearer.

12. Wireless listening device according to claim 1, wherein the top cover (100) is further configured with a joint (112), wherein the joint (112) is arranged around the protrusion (111) and extends towards an opening edge of the casing (300).

Images