Acoustic output equipment
By adjusting the interval distance between the partitions, the acoustic performance degradation caused by sweat during exercise is solved, and the high sound quality is maintained during exercise.
Patent Information
- Application Number
- CN202421247979.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-05-31
AI Technical Summary
The sound performance of the headphones during exercise is worse than that during non-sports. It is mainly due to the user's sweat, causing the first pressure relief hole to be blocked, which increases the vibration resistance of the diaphragm of the air-guided vibrator, thereby reducing the sound performance.
By adjusting the minimum separation distance between the first partition network and the second partition network, the probability of water accumulation between the partition network is reduced, thereby improving the degree to which the first pressure relief hole is blocked and reducing the impact of sweat on sound performance.
Reduce the risk of the first pressure relief hole being covered by sweat during exercise, improve the sound performance of the headphones, and reduce sound leakage.
Smart Images
Figure CN222655300U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of electronic devices, and in particular to an acoustic output device. Background Art
[0002] The earphones can be worn by the user to listen to sounds. The user can then listen to sounds during exercise such as running or non-exercise. However, in some scenarios, the user may find that the sound performance of the earphones during exercise is worse than that during non-exercise. Utility Model Content
[0003] The present application provides an acoustic output device, the acoustic output device comprising a shell and an air conduction vibrator, the air conduction vibrator is arranged in the shell, the shell has a first acoustic cavity and a second acoustic cavity, the first acoustic cavity and the second acoustic cavity are respectively located on both sides of the diaphragm of the air conduction vibrator, the shell is provided with a sound outlet and a first pressure relief hole, the sound outlet is communicated with the first acoustic cavity;
[0004] The acoustic output device further includes a first partition net and a second partition net, both of which are connected to the shell and are used to shield the first pressure relief hole respectively, and along the propagation direction of the air-conducted sound generated by the air-conducted vibrator in the first pressure relief hole, the second partition net and the first partition net are arranged in sequence, and compared with the second partition net, the first partition net is closer to the outer side of the shell;
[0005] The minimum spacing distance between the first partition net and the second partition net is not less than 0.2 mm.
[0006] The present application changes the positions of the first and second partition nets so that the minimum spacing distance between the first and second partition nets reduces the probability of water accumulation between the first and second partition nets, thereby improving the degree of blocking of the first pressure relief hole. In some scenarios, the present application can reduce the degree of deterioration of the sound performance of the first pressure relief hole caused by the user's sweat covering it, at least during user exercise. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0008] Figure 1 This is a schematic diagram of the structure of an acoustic output device in some embodiments of the present application;
[0009] Figure 2is a schematic diagram of the front profile of a user's ear in some embodiments of the present application;
[0010] Figure 3 for Figure 1 A schematic diagram of the structure of the movement assembly in some embodiments of the embodiment shown;
[0011] Figure 4 for Figure 3 An exploded schematic diagram of the movement assembly in the illustrated embodiment;
[0012] Figure 5 for Figure 3 A schematic diagram of the assembly of a partial structure of a movement assembly in the illustrated embodiment;
[0013] Figure 6 for Figure 5 A schematic diagram of a portion of the structure of the screen assembly in the illustrated embodiment in other embodiments;
[0014] Figure 7 for Figure 6 A schematic structural diagram of a portion of the structure of the partition net assembly in the illustrated embodiment at another viewing angle;
[0015] Figure 8 for Figure 4 A schematic diagram of a portion of the structure of the housing in the illustrated embodiment;
[0016] Fig. 9 for Figure 4 A schematic diagram of the structure of the cooperation between the second shell and the partition net assembly in the illustrated embodiment. DETAILED DESCRIPTION
[0017] The present application is further described in detail below in conjunction with the accompanying drawings and examples. It is particularly noted that the following examples are only used to illustrate the present application, but are not intended to limit the scope of the present application. Similarly, the following examples are only some embodiments of the present application rather than all embodiments, and all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of this application.
[0018] Reference to "embodiment" in this application means that a specific feature, structure or characteristic described in conjunction with the embodiment may be included in at least one embodiment of this application. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments.
[0019] See also Figure 1 , Figure 1Schematic diagram of the structure of the acoustic output device in some embodiments of the present application. The acoustic output device 100 can be used as a sound source to output sound such as air conduction sound and bone conduction sound. The acoustic output device 100 can be worn on the user's head and can be at least partially adjacent to the user's ear, so that the sound can be transmitted to the user's ear, achieving the effect of the user listening to the sound. In some embodiments, the acoustic output device 100 can be called a "headphone". In some embodiments, the acoustic output device 100 can also integrate other functions such as sound pickup and image display, which are not described in detail. In some embodiments, the acoustic output device 100 can push an air load to produce air conduction sound, and can also push a physical load (such as the acoustic output device 100, user tissue, bones, etc.) to produce bone conduction sound.
[0020] The acoustic output device 100 may include a wearable component 1001 and a core component 1002 connected to the wearable component 1001. The wearable component 1001 cooperates with the core component 1002 to enable the core component 1002 to be worn on the user's head.
[0021] The wearing piece 1001 can be arranged around the user's head, or hung on the user's head to be worn on the user's head, and of course it can also be hung on the user's ears at the same time. Furthermore, the wearing piece 1001 can also be hung only on the user's ears, and then the wearing piece 1001 can also be called an "ear hook". The main function of the wearing piece 1001 is to cooperate with the movement component 1002, and then this application does not limit the specific form of the wearing piece 1001, as long as it can cooperate with the movement component 1002 to realize the wearing of the movement component 1002 on the user's head.
[0022] The core assembly 1002 is a structure for implementing the main functions of the acoustic output device 100. For example, the core assembly 1002 can push an air load to generate air conduction sound. For example, the core assembly 1002 can push a physical load (such as the core assembly 1002, user tissue, bones, etc.) to generate bone conduction sound. For example, the core assembly 1002 can realize other functions such as sound pickup and image display, which will not be described in detail.
[0023] In some embodiments, the movement assembly 1002 may not contact the user when pushing the air load to generate air conduction sound, but it may contact the user. In some embodiments, the movement assembly 1002 may contact the user when pushing the physical load to generate bone conduction sound.
[0024] The movement component 1002 can be worn on the user's head through the wearing piece 1001. Of course, the wearing piece 1001 can also be replaced with other structures so that the movement component 1002 can be worn on the user's head through other structures and / or other wearing methods, which will not be elaborated herein.
[0025] See also Figure 2 , Figure 2It is a schematic diagram of the front profile of the user's ear in some embodiments of the present application. The ear 200 may include physiological parts such as the external auditory canal 2001, the cavum concha 2002, the cymba concha 2003, the triangular fossa 2004, the antihelix 2005, the scaphoid 2006, the helix 2007 and the antitragus 2008. Among them, the external auditory canal 2001 has a certain depth and may extend to the eardrum, but for the convenience of description, the external auditory canal 2001 may refer to the ear hole of the ear 200 unless otherwise specified in the present application. In addition, physiological parts such as the cavum concha 2002, the cymba concha 2003, the triangular fossa 2004 may also have a certain volume and depth. The cavum concha 2002 may be directly connected to the external auditory canal 2001, that is, the ear hole can be regarded as being located at the bottom of the cavum concha 2002. Figure 2 In the embodiment, the user's head has a facial region M adjacent to the ear 200. In some embodiments, the facial region M may be located in front of the ear 200. Of course, the facial region M may also be divided and adjusted on the user's face according to the needs of those skilled in the art.
[0026] It should be noted that in the fields of medicine and anatomy, three basic planes of the human body can be defined: the sagittal plane, the coronal plane, and the horizontal plane, as well as three basic axes: the sagittal axis, the coronal axis, and the vertical axis. Among them, the sagittal plane refers to a plane perpendicular to the ground along the front-back direction of the body, which divides the human body into left and right parts; the coronal plane refers to a plane perpendicular to the ground along the left-right direction of the body, which divides the human body into front and back parts; the horizontal plane refers to a plane parallel to the ground along the up-down direction of the body, which divides the human body into upper and lower parts. Correspondingly, the sagittal axis refers to an axis along the front-back direction of the body and perpendicular to the coronal plane, the coronal axis refers to an axis along the left-right direction of the body and perpendicular to the sagittal plane, and the vertical axis refers to an axis along the up-down direction of the body and perpendicular to the horizontal plane. Furthermore, the "front side of the ear (front side of the ear)" described in the present application is a concept relative to the "back side of the ear (back side of the ear)", the former refers to the side of the ear facing the face, and the latter refers to the side of the ear facing away from the face. Figure 2 shown.
[0027] Please also read Figure 1 and Figure 2 When the acoustic output device 100 is worn on the user's head, it can be in a wearing state, and the core component 1002 can be arranged adjacent to the ear 200. Of course, the core component 1002 can also be in contact with the user's head, the ear 200, or the face.
[0028] In some embodiments, when the acoustic output device 100 is in a wearing state, the movement component 1002 may be located in the facial region M adjacent to the ear 200 to be closer to the ear 200. In some embodiments, the movement component 1002 may contact the facial skin at the facial region M to achieve stable wearing. In some embodiments, the movement component 1002 contacting the facial skin at the facial region M may push a physical load (e.g., the movement component 1002, user tissue, bones, etc.) to generate bone conduction sound.
[0029] See also Figure 1 , the number of movement components 1002 may be two, for example, a first movement component 1003 and a second movement component 1004. The first movement component 1003 may be worn on the left ear 200 of the user, and the second movement component 1004 may be worn on the right ear 200 of the user. In some embodiments, the number of movement components 1002 may be one, for example, one of the first movement component 1003 and the second movement component 1004 may be omitted.
[0030] In some embodiments, the first movement component 1003 can be worn corresponding to the left ear 200 of the user and can be located at the facial area M adjacent to the left ear 200 of the user, and the second movement component 1004 can be worn corresponding to the right ear 200 of the user and can be located at the facial area M adjacent to the right ear 200 of the user.
[0031] Please also read Figure 3 and Figure 4 , Figure 3 for Figure 1 The schematic diagram of the structure of the movement assembly 1002 in some embodiments shown in the embodiment, Figure 4 for Figure 3 An exploded schematic diagram of a core assembly 1002 in the illustrated embodiment. The core assembly 1002 may include a housing 10 and an air conduction vibrator 20 carried by the housing 10. The housing 10 may be used to carry and install the air conduction vibrator 20. The air conduction vibrator 20 may generate air conduction sound to be transmitted to the ear 200 of the user.
[0032] In some embodiments, the air conduction vibrator 20 may include a diaphragm 21 , so that when the diaphragm 21 vibrates, air vibration is induced, and the air load is pushed to generate sound through the air vibration principle, and the sound is conducted to the user's ear 200 .
[0033] In some embodiments, the housing 10 has a first acoustic cavity 201 and a second acoustic cavity 202 , and the first acoustic cavity 201 and the second acoustic cavity 202 are respectively located on both sides of the diaphragm 21 of the air conduction oscillator 20 .
[0034] In some embodiments, the first acoustic cavity 201 may be referred to as a "rear cavity", and the second acoustic cavity 202 may be referred to as a "front cavity". In some embodiments, the distinction between the "front cavity" and the "rear cavity" is that the "front cavity" is located on the side of the diaphragm 21 away from the magnetic circuit system 22, and the "rear cavity" is located on the side of the diaphragm 21 close to the magnetic circuit system 22. Of course, the distinction between the "front cavity" and the "rear cavity" can also be divided based on the technology in the field.
[0035] In some embodiments, the air conduction vibrator 20 may cooperate with the housing 10 to form a first acoustic cavity 201 and a second acoustic cavity 202 on both sides of the diaphragm 21 of the air conduction vibrator 20 .
[0036] In some embodiments, the first acoustic cavity 201 and the second acoustic cavity 202 may be connected, which is beneficial to reducing the resistance of the diaphragm 21 of the air conduction vibrator 20 during the vibration process. Of course, in some scenarios, the first acoustic cavity 201 and the second acoustic cavity 202 may not be connected, and the two acoustic cavities 202 are isolated from each other, which is beneficial to reducing interference between sounds. Specifically, the first acoustic cavity 201 and the second acoustic cavity 202 may be connected or not connected according to the needs of those skilled in the art.
[0037] In some embodiments, the magnetic circuit system 22 is used to drive the diaphragm 21 to vibrate, that is, the magnetic circuit system 22 may also be a part of the air conduction vibrator 20. Specifically, the process of the diaphragm 21 vibrating or the magnetic circuit system 22 driving the diaphragm 21 to vibrate can be implemented based on conventional techniques in the art, which will not be described in detail.
[0038] In some embodiments, a sound outlet hole 103 communicating with the first acoustic cavity 201 is provided on the shell 10 , and the sound outlet hole 103 is used to transmit the air conduction sound generated by the air conduction vibrator 20 from the first acoustic cavity 201 to the outside of the shell 10 .
[0039] In some embodiments, the housing 10 is provided with a first pressure relief hole 104 in communication with the second acoustic cavity 202. The first pressure relief hole 104 allows the second acoustic cavity 202 to be in communication with the external environment (outside the housing 10), that is, air can flow between the second acoustic cavity 202 and the external environment, thereby facilitating the reduction of the resistance of the diaphragm 21 of the air conduction vibrator 20 during the vibration process. In some embodiments, the first pressure relief hole 104 can cooperate with the sound outlet hole 103 to reduce the sound leakage of the acoustic output device 100 in the far field.
[0040] In some embodiments, the housing 10 may include a screen assembly 14 disposed at the first pressure relief hole 104. In some embodiments, the screen assembly 14 may adjust the sound emitted by the air conduction vibrator 20 to improve the acoustic performance of the acoustic output device 100. In some embodiments, the screen assembly 14 may have a dustproof effect.
[0041] In some scenarios, users can wear the acoustic output device 100 during sports such as running or non-sports. Studies have found that the acoustic output device 100 occasionally has worse sound performance during sports than during non-sports. Further studies have shown that since users produce a lot of sweat during exercise, the sweat will accumulate at the first pressure relief hole 104, for example, on the isolation mesh assembly 14, which reduces the effective opening area of the first pressure relief hole 104, thereby increasing the resistance of the diaphragm 21 of the air conduction vibrator 20 during vibration, resulting in poor sound performance. Correspondingly, the sound leakage of the acoustic output device 100 in the far field will also increase.
[0042] Research has found that the effect of sweat on the first pressure relief hole 104 may be that the spacing between the layers of the isolation net assembly 14 is too small, which makes it easy for sweat to penetrate from the outside to the inside and adhere to adjacent layers, thereby causing serious water accumulation in the isolation net assembly 14, making the first pressure relief hole 104 more blocked.
[0043] In some embodiments, the laminated structure of the isolation net assembly 14 can be improved. Specifically, the problem of water accumulation in the isolation net assembly 14 can be improved by adjusting the spacing between the laminated layers, and the degree of blocking of the first pressure relief hole 104 can be improved. In some scenarios, at least during the user's exercise, the degree of deterioration in the sound performance of the first pressure relief hole 104 caused by the user's sweat can be reduced.
[0044] See also Figure 5 , Figure 5 for Figure 3 Schematic diagram of the assembly of the partial structure of the core assembly 1002 in the illustrated embodiment. The screen assembly 14 may include a first screen 141 for shielding the first pressure relief hole 104. The first screen 141 may play a supporting, protective, and blocking role, reducing the probability of foreign matter entering the second acoustic cavity 202. In some embodiments, the first screen 141 may reduce the probability of foreign matter entering the first pressure relief hole 104.
[0045] The first isolation net 141 may be embedded in the first pressure relief hole 104 , and of course, may also be fixed to the first pressure relief hole 104 by bonding, clamping, etc., so as to shield the first pressure relief hole 104 .
[0046] In some embodiments, at least a portion of the first partition net 141 may be exposed outside the housing 10 .
[0047] The first separator 141 may be a mesh structure made of metal or other materials.
[0048] See also Figure 5 , the partition net assembly 14 may further include a second partition net 142 for shielding the first pressure relief hole 104. That is, the second partition net 142 and the first partition net 141 cooperate with each other and are used to shield the first pressure relief hole 104.
[0049] In some embodiments, the minimum spacing distance between the first partition net 141 and the second partition net 142 is not less than 0.2 mm. By controlling the minimum spacing distance between the first partition net 141 and the second partition net 142, it is helpful to reduce the probability of water accumulation between the first partition net 141 and the second partition net 142, and improve the degree of clogging of the first pressure relief hole 104 by sweat. In some scenarios, the minimum spacing distance between the first partition net 141 and the second partition net 142 can at least reduce the degree of deterioration of the sound performance of the first pressure relief hole 104 caused by the user's sweat during the user's exercise.
[0050] In some embodiments, the second partition net 142 may overlap with the first partition net 141 , and the minimum spacing distance between the first partition net 141 and the second partition net 142 may be the spacing distance between the second partition net 142 and the first partition net 141 in the overlapping direction.
[0051] In some embodiments, the air-conducted sound generated by the air-conducted oscillator 20 can propagate in the first pressure relief hole 104. In the propagation direction, the second partition net 142 and the first partition net 141 can be arranged in sequence to respectively shield the first pressure relief hole 104 to achieve cooperation.
[0052] In some embodiments, compared with the second partition net 142 , the first partition net 141 is closer to the outside of the shell 10 , so that the second partition net 142 is supported and protected by the first partition net 141 .
[0053] In some embodiments, the second partition net 142 may be closer to the first pressure relief hole 104 than the first partition net 141. In some embodiments, the first partition net 141 may shield the first pressure relief hole 104 on the outside of the housing 10, and the second partition net 142 may shield the first pressure relief hole 104 on the inside of the first partition net 141.
[0054] In some embodiments, the second partition net 142 may shield the first pressure relief hole 104 on the inner side of the housing 10. In some embodiments, the second partition net 142 may shield the first pressure relief hole 104 inside the first pressure relief hole 104. In some embodiments, the second partition net 142 may shield the first pressure relief hole 104 inside the second acoustic cavity 202. In some embodiments, the second partition net 142 may be indirectly provided under the support of the first partition net 141, and maintain the minimum spacing distance between the first partition net 141 and the second partition net 142 along the stacking direction, that is, the second partition net 142 may be provided on the first partition net 141.
[0055] In some embodiments, the second partition net 142 may be directly fixed on the first partition net 141 .
[0056] In some embodiments, the second partition net 142 can be an acoustic network. In some embodiments, the second partition net 142 can be a gauze or other mesh material that can act as a sound barrier.
[0057] See also Figure 6 , Figure 7 and Figure 8 , Figure 6 for Figure 5 The schematic diagram of the partial structure of the screen assembly 14 in other embodiments in the embodiment shown, Figure 7 for Figure 6 A schematic diagram of a part of the structure of the partition net assembly 14 in another embodiment shown in FIG. Figure 8 for Figure 4 A schematic diagram of a part of the structure of the housing 10 in the illustrated embodiment. The screen assembly 14 may further include a screen bracket 143. The screen bracket 143 may be used to support and fix the second screen 142. The provision of the screen bracket 143 may facilitate the support of the second screen 142, improve the stability of the connection of the second screen 142 to the housing 10, and may also facilitate the overall assembly of the housing 10, simplifying the assembly process of the second screen 142 on the housing 10.
[0058] In some embodiments, the screen bracket 143 can be fixed on the first screen 141 to achieve the spacing between the first screen 141 and the second screen 142. At this time, at least a portion of the screen bracket 143 can be disposed in the first pressure relief hole 104 (such as Figure 8 shown).
[0059] In some embodiments, the screen bracket 143 may be disposed on the inner side of the housing 10 (eg, Figure 8 As shown in the figure), and can be assembled and connected with the shell wall of the shell 10 to realize the spacing setting of the first partition net 141 and the second partition net 142. Among them, part of the structure of the shell wall is located between the first partition net 141 and the second partition net 142, which is conducive to increasing the minimum spacing distance between the first partition net 141 and the second partition net 142 and reducing the risk of sweat adhering to the first partition net 141 and the second partition net 142 at the same time. In addition, in some scenarios, the minimum spacing distance between the first partition net 141 and the second partition net 142 can be adjusted by adjusting the shell wall thickness of the shell 10. In some scenarios, the minimum spacing distance between the first partition net 141 and the second partition net 142 can also be adjusted by adjusting the thickness or shape of the partition net bracket 143.
[0060] In some embodiments, the second screen 142 can be disposed on the side of the screen support 143 away from the first screen 141, which is conducive to increasing the minimum spacing distance between the first screen 141 and the second screen 142, and reducing the risk of sweat being attached to the first screen 141 and the second screen 142 at the same time. Of course, the second screen 142 can also be disposed on the side of the screen support 143 close to the first screen 141.
[0061] It can be understood that the setting position of the second partition net 142 on the partition net bracket 143 can be adjusted according to the needs of technical personnel in this field. In addition, the partition net bracket 143 can also be omitted, and the second partition net 142 can be directly fixed to the shell wall of the shell 10 at the first pressure relief hole 104. For example, the side of the second partition net 142 that is away from or close to the first partition net 141 is fixed to the shell wall of the shell 10 at the first pressure relief hole 104.
[0062] See also Figure 3 and Figure 4 , the housing 10 may have a first direction X, a second direction Y and a third direction Z that are orthogonal to each other. In the worn state, the first direction X may be the coronal axis direction, or a direction that is angled with the coronal axis. In the worn state, the second direction Y may be the sagittal axis direction, or a direction that is angled with the sagittal axis. In the worn state, the third direction Z may be the vertical axis direction, or a direction that is angled with the vertical axis.
[0063] In some embodiments, the housing 10 may include a first housing wall 1101 and a second housing wall 1102 spaced apart along a first direction X. In a worn state, the first housing wall 1101 may face the user's head, and the second housing wall 1102 may be disposed on a side of the first housing wall 1101 away from the user's head.
[0064] In some embodiments, in the wearing state, the first shell wall 1101 may face the facial area M in front of the user's ear 200, and the second shell wall 1102 may be located on the side of the first shell wall 1101 away from the facial area M. In some embodiments, the first shell wall 1101 may contact the human facial skin at the facial area M.
[0065] In some embodiments, in the wearing state, the sound outlet hole 103 may be disposed on a side of the housing 10 facing the ear 200. In some embodiments, in the wearing state, the sound outlet hole 103 is disposed along the second direction Y on a side of the housing 10 facing the ear 200.
[0066] In some embodiments, the housing 10 further includes a third housing wall 1103 connecting the first housing wall 1101 and the second housing wall 1102. In some embodiments, the first pressure relief hole 104 is disposed on the third housing wall 1103. In some embodiments, the first partition net 141 is fixed on the third housing wall 1103. In some embodiments, the first partition net 141 is connected to the outside of the third housing wall 1103 or is embedded in the third housing wall 1103. Of course, when the setting position of the first pressure relief hole 104 changes, the first partition net 141 can be connected to the outside of other housing walls of the housing 10.
[0067] When worn, the third shell wall 1103 can be arranged along the third direction Z on the side of the shell 10 away from the top of the user's head, so that the first pressure relief hole 104 is located at a lower position on the vertical axis. When sweat flows on the surface of the shell 10, at least part of the sweat flows downward along the vertical axis and is easily accumulated at the first pressure relief hole 104. By setting the partition net assembly 14 of the first partition net 141 and the second partition net 142, the degree of blocking of the first pressure relief hole 104 can be improved.
[0068] In addition, the location of the first pressure relief hole 104 is conducive to reducing the risk of sound waves propagating through the first pressure relief hole 104 leaking and being heard by the user.
[0069] In some embodiments, the housing 10 is provided with a second pressure relief hole 105 in communication with the second acoustic cavity 202. When the first pressure relief hole 104 is affected by sweat, the second pressure relief hole 105 can assist the first pressure relief hole 104 in pressure relief, and the second pressure relief hole 105 enables air to enter and exit the second acoustic cavity 202, thereby making up for the deficiency of the first pressure relief hole 104 after being affected by sweat. The second pressure relief hole 105 can also reduce the resistance of the diaphragm 21 of the air conduction vibrator 20 during the vibration process, and can also cooperate with the sound outlet 103 to reduce the sound leakage of the acoustic output device 100 in the far field.
[0070] It is understandable that when the acoustic output device 100 is in the worn state, the first pressure relief hole 104 may be blocked not only by sweat but also by dust, oil stains, water, obstacles, etc. The provision of the second pressure relief hole 105 can improve the disadvantage caused by the blocking of the first pressure relief hole 104 and reduce the influence of the blocking of the first pressure relief hole 104 on the sound performance of the acoustic output device 100.
[0071] In some embodiments, the second pressure relief hole 105 is disposed on the second shell wall 1102 , and thus is located at a different position from the first pressure relief hole 104 , thereby reducing the probability of the first pressure relief hole 104 and the second pressure relief hole 105 being blocked at the same time.
[0072] In the wearing state, the second shell wall 1102 is located on the side of the first shell wall 1101 away from the user's head, and thus does not contact the facial skin of the user's head, which greatly reduces the possibility of sweat on the user's skin flowing to the second pressure relief hole 105. Of course, the second pressure relief hole 105 can also be set on other shell walls of the shell 10 as needed.
[0073] In some embodiments, the opening area of the first pressure relief hole 104 is greater than the opening area of the second pressure relief hole 105 .
[0074] In some embodiments, the housing 10 further includes a fourth housing wall 1104 connecting the first housing wall 1101 and the second housing wall 1102. The fourth housing wall 1104 may be disposed opposite to the third housing wall 1103 in the third direction Z.
[0075] In the wearing state, the fourth shell wall 1104 is arranged along the third direction Z on the side of the shell 10 facing the top of the user's head.
[0076] See also Figure 4 , the housing 10 may include a fifth housing wall 1105 and a sixth housing wall 1106 spaced apart along the second direction Y. The fifth housing wall 1105 and the sixth housing wall 1106 may both be connected to the first housing wall 1101, the second housing wall 1102, the third housing wall 1103, and the fourth housing wall 1104. In the second direction Y, the fifth housing wall 1105 may be closer to the ear 200 than the sixth housing wall 1106. In some embodiments, the sound outlet 103 may be provided on the fifth housing wall 1105.
[0077] In some embodiments, the first shell wall 1101 , the second shell wall 1102 , the third shell wall 1103 , the fourth shell wall 1104 , the fifth shell wall 1105 and the sixth shell wall 1106 may be arranged to form the housing 10 .
[0078] In some embodiments, the first shell 11 can be formed by at least the second shell wall 1102, the third shell wall 1103, the fourth shell wall 1104 and the sixth shell wall 1106. In some embodiments, the fifth shell wall 1105 can be separated from the shell 10 to form an independent structure, which is called the cover 12. In some embodiments, the first shell wall 1101 can be separated from the shell 10 to form an independent structure, which is called the second shell 13. Furthermore, in some embodiments, the shell 10 may include a first shell 11, a cover 12 and a second shell 13. Among them, the first shell 11 can be connected to the cover 12 in the second direction Y, and can be connected to the second shell 13 in the first direction X. Of course, the cover 12 and the second shell 13 can also be connected. The assembly method of the first shell 11, the cover 12 and the second shell 13 can facilitate the assembly and processing of the shell 10.
[0079] In some embodiments, the second shell wall 1102 , the third shell wall 1103 , the fourth shell wall 1104 , the fifth shell wall 1105 and the sixth shell wall 1106 may be arranged to form the first shell 11 . That is, the cover 12 may also be a part of the first shell 11 .
[0080] It is understandable that the first shell 11 may not be limited to the second shell wall 1102, the third shell wall 1103, the fourth shell wall 1104 and the sixth shell wall 1106, but may also include other shell walls. Of course, the first shell 11 may also be a structure of other forms. The cover body 12 may not be limited to the fifth shell wall 1105, but may also include other shell walls. Of course, the cover body 12 may also be a structure of other forms. The second shell 13 may not be limited to the first shell wall 1101, but may also include other shell walls. Of course, the second shell 13 may also be a structure of other forms.
[0081] See also Figure 4 The cover 12 can be covered on the end surface of the second shell wall 1102. At the same time, it can also be covered on the end surfaces of the first shell wall 1101, the third shell wall 1103 and the fourth shell wall 1104. Of course, it can also be covered on the second shell 13.
[0082] See also Figure 8 , a first limiting groove 106 is provided on the first shell 11, and the first limiting groove 106 can be used to accommodate at least a part of the structure of the partition net bracket 143, so that the second partition net 142 and the partition net bracket 143 can be installed on the first shell 11. In some embodiments, the partition net bracket 143 can be inserted into the first limiting groove 106, and connected by the first shell 11 and the second shell 13, so as to realize the assembly and fixation of the partition net bracket 143, facilitate the assembly of the acoustic output device 100, and improve the stability of the partition net bracket 143 connected to the first shell 11.
[0083] See also Fig. 9 , Fig. 9 for Figure 4 A schematic diagram of the structure of the second shell 13 and the partition net assembly 14 in the illustrated embodiment. The second shell 13 is provided with a second limiting groove 107, which can be used to accommodate at least part of the structure of the partition net bracket 143, so that the second partition net 142 and the partition net bracket 143 can be installed on the second shell 13. In some embodiments, the partition net bracket 143 can be inserted into the second limiting groove 107 and connected to the first shell 11 and the second shell 13 to achieve assembly and fixation of the partition net bracket 143, facilitate assembly of the acoustic output device 100, and improve the stability of the partition net bracket 143 connected to the second shell 13.
[0084] In some embodiments, at least one of the first limiting groove 106 and the second limiting groove 107 can be omitted.
[0085] In some embodiments, the direction in which the partition net bracket 143 is inserted into the first limiting groove 106 and / or the second limiting groove 107 can be consistent with the snap-fitting direction of the first shell 11 and the second shell 13, which is beneficial to the assembly and fixation of the partition net bracket 143, facilitates the assembly of the acoustic output device 100, and improves the stability of the partition net bracket 143 connected to the first shell 11 and the second shell 13.
[0086] In some embodiments, the fastening direction of the first shell 11 and the second shell 13 may be the first direction X, and of course, may also be different from the first direction X.
[0087] See also Figure 8 One end of the partition net bracket 143 can be inserted into the first limiting groove 106 of the first shell 11 along the snap-fit direction, which is beneficial to the assembly and fixation of the partition net bracket 143, facilitates the assembly of the acoustic output device 100, and improves the stability of the partition net bracket 143 connected to the first shell 11.
[0088] See also Fig. 9 One end of the partition net bracket 143 can be inserted into the second limiting groove 107 of the second shell 13 along the snap-fit direction, which is beneficial to the assembly and fixation of the partition net bracket 143, facilitates the assembly of the acoustic output device 100, and improves the stability of the partition net bracket 143 connected to the second shell 13.
[0089] In some embodiments, one end of the partition net bracket 143 can be inserted into the first limiting groove 106 of the first shell 11 along the buckling direction, and the other end can be inserted into the second limiting groove 107 of the second shell 13 along the buckling direction, which is beneficial to the assembly and fixation of the partition net bracket 143, facilitates the assembly of the acoustic output device 100, and improves the stability of the partition net bracket 143 connecting the first shell 11 and the second shell 13.
[0090] See also Figure 5 The first pressure relief hole 104 includes two sub-pressure relief holes, for example, a first sub-pressure relief hole 1041 and a second sub-pressure relief hole 1042. The first sub-pressure relief hole 1041 can be disposed on the first housing 11. The second sub-pressure relief hole 1042 can be disposed on the second housing 13.
[0091] In some embodiments, the first sub-pressure relief hole 1041 and the second sub-pressure relief hole 1042 may not be connected on the third shell wall 1103, which is beneficial to strengthen the structural strength of the shell 10 at the first pressure relief hole 104. Of course, the first sub-pressure relief hole 1041 and the second sub-pressure relief hole 1042 may also be connected on the third shell wall 1103.
[0092] In some embodiments, the first sub-pressure relief hole 1041 and the second sub-pressure relief hole 1042 may be connected to the housing 10 or not.
[0093] See also Figure 6The partition net support 143 is provided with two sound guide windows spaced apart along the fastening direction, such as the first sound guide window 1431 and the second sound guide window 1432. Compared with providing a larger sound guide window on the partition net support 143, it is beneficial to strengthen the structural strength of the partition net support 143 and reduce the risk of deformation or damage of the partition net support 143. The second partition net 142 can shield the first sound guide window 1431 and the second sound guide window 1432, and can be supported more stably by the partition net support 143.
[0094] See also Figure 8 The first sound guide window 1431 can be set corresponding to the first sub-pressure relief hole 1041. The air-conducted sound generated by the air-conducted vibrator 20 can be transmitted to the first pressure relief hole 104, such as the first sub-pressure relief hole 1041, by the second acoustic cavity 202, and is transmitted from the first sound guide window 1431 and the first sub-pressure relief hole 1041 to the mesh 1411, and finally transmitted to the outside of the shell 10.
[0095] See also Fig. 9 The second sound guide window 1432 can be set corresponding to the second sub-pressure relief hole 1042. The air-conducted sound generated by the air-conducted vibrator 20 is transmitted from the second acoustic cavity 202 to the first pressure relief hole 104, such as the second sub-pressure relief hole 1042, and is transmitted from the second sound guide window 1432 and the second sub-pressure relief hole 1042 to the mesh 1411, and finally transmitted to the outside of the shell 10.
[0096] See also Figure 8, a first stopper 1107 is provided on the first shell 11, and the first stopper 1107 can be connected to the shell walls such as the second shell wall 1102, the third shell wall 1103 and the sixth shell wall 1106. In some embodiments, the first stopper 1107 can be connected to the shell walls such as the second shell wall 1102, the third shell wall 1103 and the sixth shell wall 1106 to form a first limiting groove 106, and then, when the partition net bracket 143 is inserted into the first limiting groove 106 of the first shell 11, it can abut against the shell walls such as the second shell wall 1102, the third shell wall 1103 and the sixth shell wall 1106, and of course, it can also at least abut against the inner wall surface of the shell walls such as the second shell wall 1102, the third shell wall 1103 and the sixth shell wall 1106. In some embodiments, when the partition net bracket 143 is inserted into the first limiting groove 106 of the first shell 11, it can abut against the shell wall of the second shell 13, such as the first shell wall 1101, and of course, it can also abut against the inner wall surface of the shell wall of the second shell 13, such as the first shell wall 1101. In some embodiments, the first stopper 1107 is disposed in the first shell 11, for example, disposed on the inner side of the shell wall of the second shell wall 1102, the third shell wall 1103, and the sixth shell wall 1106. In some embodiments, the first stopper 1107 may not be connected with the shell wall of the second shell wall 1102, the third shell wall 1103, and the sixth shell wall 1106 to form the first limiting groove 106, but is located in the first limiting groove 106. In some embodiments, the first limiting groove 106 is formed on the first stopper 1107 and / or on the shell wall of the second shell wall 1102, the third shell wall 1103, and the sixth shell wall 1106. In some embodiments, the first stopper 1107 is used to connect or abut the partition net support 143, so that the partition net support 143 abuts against the inner wall surface of the shell wall.
[0097] Of course, the formation method of the first limiting groove 106 is not limited to the methods listed here.
[0098] See also Fig. 9, a second stopper 1108 is provided on the second shell 13, and the second stopper 1108 can be connected to the shell wall of the second shell 13, such as the first shell wall 1101. In some embodiments, the second stopper 1108 can be connected to the shell wall of the second shell 13, such as the first shell wall 1101, to form a second limiting groove 107, and then, when the partition net bracket 143 is inserted into the second limiting groove 107 of the second shell 13, it can abut against the shell wall of the second shell 13, such as the first shell wall 1101, and of course, it can also abut against the inner wall surface of the shell wall of the second shell 13, such as the first shell wall 1101. In some embodiments, the second stopper 1108 is provided on the inner side of the shell wall of the second shell 13, such as the first shell wall 1101. In some embodiments, when the partition net bracket 143 is inserted into the second limiting groove 107 of the second shell 13, it can abut against the second shell wall 1102, the third shell wall 1103, and the sixth shell wall 1106, and of course, it can also abut against the inner wall surface of the second shell wall 1102, the third shell wall 1103, and the sixth shell wall 1106. In some embodiments, the second stopper 1108 may not be connected to the shell wall of the second shell 13, such as the first shell wall 1101, to form the second limiting groove 107, but is located in the second limiting groove 107. In some embodiments, the second limiting groove 107 is formed on the second stopper 1108 and / or formed on the shell wall of the second shell 13, such as the first shell wall 1101. In some embodiments, the second stopper 1108 is used to connect or abut the partition net bracket 143, so that the partition net bracket 143 abuts against the inner wall surface of the shell wall.
[0099] Of course, the formation method of the second limiting groove 107 is not limited to the methods listed here.
[0100] It is understandable that one of the first stopper 1107 and the second stopper 1108 can be omitted. In some embodiments, the first stopper 1107 and the second stopper 1108 are an integral structure. In some embodiments, the first stopper 1107 is formed on the second housing 13 and cooperates with the first housing 11. In some embodiments, the second stopper 1108 is formed on the first housing 11 and cooperates with the second housing 13.
[0101] See also Figure 4, the shell 10 also includes a partition wall 111. The partition wall 111 is used to divide the internal space of the shell 10 into a first accommodating chamber 101 and a second accommodating chamber 102 that are spaced apart from each other. After the internal space of the shell 10 is divided, it can be partitioned for different functions of the acoustic output device 100 to improve space utilization and reduce the mutual influence between different functional components. In some embodiments, the first accommodating chamber 101 and the second accommodating chamber 102 are arranged in the second direction Y and are closer to the ear 200 than the second accommodating chamber 102. Furthermore, when the air conduction vibrator 20 is arranged in the first accommodating chamber 101, the transmission distance of the sound generated by the vibration of the air conduction vibrator 20 can be shortened, thereby improving the sound pressure level of the acoustic output device 100.
[0102] In some embodiments, the sound outlet hole 103 , the first pressure relief hole 104 , and the second pressure relief hole 105 may be in communication with the first accommodating cavity 101 .
[0103] In some embodiments, the first accommodating cavity 101 may be formed by a partition wall 111 , a first shell wall 1101 , a second shell wall 1102 , a third shell wall 1103 , a fourth shell wall 1104 and a fifth shell wall 1105 .
[0104] In some embodiments, the first accommodating cavity 101 may be formed by a partition wall 111 , a second shell wall 1102 , a third shell wall 1103 , a fourth shell wall 1104 and a fifth shell wall 1105 .
[0105] In some embodiments, the first accommodating cavity 101 may be formed by connecting the first shell 11 and the cover 12 .
[0106] In some embodiments, the first shell 11 may have a first sub-accommodating cavity 1011 , and the cover body 12 may have a second sub-accommodating cavity 1012 . When the first shell 11 is connected to the cover body 12 , the first sub-accommodating cavity 1011 and the second sub-accommodating cavity 1012 form a first accommodating cavity 101 .
[0107] In some embodiments, the first acoustic cavity 201 and the second acoustic cavity 202 may be disposed in the first accommodating cavity 101. In some embodiments, the first acoustic cavity 201 is located on the side of the diaphragm 21 facing the fifth shell wall 1105, and the second acoustic cavity 202 is located on the side of the diaphragm 21 facing the partition wall 111.
[0108] In some embodiments, the second accommodating cavity 102 may be formed by the partition wall 111 , the first shell wall 1101 , the second shell wall 1102 , the third shell wall 1103 , the fourth shell wall 1104 and the sixth shell wall 1106 .
[0109] In some embodiments, the second accommodating cavity 102 may be formed by connecting the first shell 11 and the second shell 13 .
[0110] In some embodiments, the first shell 11 may have a third sub-accommodating chamber 1021 , and the second shell 13 may have a fourth sub-accommodating chamber 1022 . When the first shell 11 is connected to the second shell 13 , the third sub-accommodating chamber 1021 and the fourth sub-accommodating chamber 1022 form the second accommodating chamber 102 .
[0111] See also Figure 4 The core assembly 1002 may further include a bone conduction vibrator 30 disposed in the second accommodating cavity 102. The bone conduction vibrator 30 may generate bone conduction sound. In some embodiments, the first shell wall 1101 may contact the human face skin at the face area M, and then the bone conduction vibrator 30 may push the physical load (e.g., the first shell wall 1101, user tissue, bones, etc.) to generate bone conduction sound.
[0112] In the several embodiments provided in this application, it should be understood that the disclosed methods and devices can be implemented in other ways. For example, the device implementation described above is only illustrative, for example, the division of modules or units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.
[0113] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.
[0114] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.
[0115] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.
Claims
1. An acoustic output device, characterized in that: The acoustic output device comprises a shell and an air conduction vibrator, wherein the air conduction vibrator is arranged in the shell, the shell has a first acoustic cavity and a second acoustic cavity, the first acoustic cavity and the second acoustic cavity are respectively located on both sides of the diaphragm of the air conduction vibrator, the shell is provided with a sound outlet hole and a first pressure relief hole, the sound outlet hole is communicated with the first acoustic cavity, and the first pressure relief hole is communicated with the second acoustic cavity; The acoustic output device further includes a first partition net and a second partition net, both of which are connected to the shell and are used to shield the first pressure relief hole respectively, and along the propagation direction of the air-conducted sound generated by the air-conducted vibrator in the first pressure relief hole, the second partition net and the first partition net are arranged in sequence, and compared with the second partition net, the first partition net is closer to the outer side of the shell; Wherein, the minimum spacing distance between the first partition net and the second partition net is not less than 0.2 mm.
2. The acoustic output device according to claim 1, characterized in that At least a portion of the first partition net is exposed outside the shell, and the second partition net is connected to the first pressure relief hole or the first acoustic cavity.
3. The acoustic output device according to claim 2, characterized in that The acoustic output device further comprises a partition net support, wherein the partition net support is arranged in the shell and connected to the shell, and the second partition net is arranged on the partition net support.
4. The acoustic output device according to claim 3, characterized in that The second partition net is arranged on a side of the partition net support facing away from the first partition net.
5. The acoustic output device according to claim 3, characterized in that The housing comprises a first housing and a second housing, wherein the first housing and the second housing are buckled with each other; A first limiting groove is provided on the inner side of the first shell, and at least a part of the structure of the partition net bracket is inserted into the first limiting groove along the buckling direction of the first shell and the second shell; And / or, a second limiting groove is provided on the inner side of the second shell, and along the buckling direction of the first shell and the second shell, at least a part of the structure of the partition net bracket is inserted into the second limiting groove.
6. The acoustic output device according to claim 5, characterized in that Along the buckling direction, one end of the partition net bracket is inserted into the first limiting groove, and the other end is inserted into the second limiting groove.
7. The acoustic output device according to claim 6, characterized in that The first pressure relief hole includes two sub-pressure relief holes, one of which is arranged in the first shell, and the other is arranged in the second shell, and the second partition net is arranged to cover the two sub-pressure relief holes at the same time.
8. The acoustic output device according to claim 7, characterized in that Two sound guide windows are arranged on the partition bracket, and the two sound guide windows are arranged at intervals along the buckling direction and respectively correspond to the two sub-pressure relief holes. The second partition is configured to cover the two sound guide windows at the same time.
9. The acoustic output device according to claim 6, characterized in that The first shell and / or the second shell comprises a shell wall and a stopper, the stopper is arranged on the inner side of the shell wall and is spaced from the inner wall surface of the shell wall, and the first limiting groove and / or the second limiting groove are located on the shell wall and the stopper; When the partition net bracket is inserted into the first limiting groove and / or the second limiting groove, the stopper is used to connect the partition net bracket so that the partition net bracket abuts against the inner wall surface of the shell wall.
10. The acoustic output device according to any one of claims 1 to 9, characterized in that: The first spacer net is overlapped with the second spacer net.