Open type earphone

Abstract

The utility model belongs to the field of earphones, and provides an open type earphone, which comprises an earphone main body, an ear hook, a feedback microphone and a first microphone array, and is characterized in that one end of the ear hook is connected with the earphone main body; the feedback microphone is arranged on the earphone main body and is used for collecting environment noise at the ear canal of a user; the first microphone array is arranged on the ear hook and used for collecting environmental noise around the ears of a user, the first microphone array comprises a plurality of feed-forward microphones, and the feed-forward microphones are distributed at intervals in the length extension direction of the ear hook. According to the open type earphone, the feedback microphone is arranged on the earphone main body, the first microphone array is arranged on the ear hook, and the plurality of feed-forward microphones of the first microphone array are distributed at intervals along the length extension direction of the ear hook, so that the environmental noise can be collected in multiple directions, the collection range is wide, and the collection efficiency is improved. And the interference of noise is effectively reduced or eliminated, so that the active noise reduction effect is greatly improved.

Description

Technical Field

[0001] The present application belongs to the technical field of earphones, and more specifically, to an open earphone. Background Art

[0002] Headphones can be divided into two categories according to the wearing method: in-ear headphones and open-ear headphones. In-ear headphones are inserted into the ear canal to isolate the sound of the headphones in the ear canal, thus creating a more private and focused listening environment. Open-ear headphones do not enter the ear canal, and the sound is transmitted to the user's ear canal through the air, which will not directly stimulate the eardrum and will not cause pressure on the ear canal, thus greatly reducing damage to the ears. Compared with in-ear headphones, open-ear headphones are more comfortable to wear and suitable for long-term wear.

[0003] When using open-back headphones, users can receive external sounds and sounds emitted by the headphones at the same time. In order to reduce noise, some open-back headphones are designed with noise reduction functions. Among them, noise reduction functions are generally divided into passive noise reduction functions and active noise reduction functions. Passive noise reduction uses materials such as silicone ear caps and leather covers inside the headphones to isolate the ear canal from the outside world as much as possible and weaken the transmission of external sound waves; active noise reduction function actively collects environmental noise through headphones, and then analyzes and processes the environmental noise to generate sound waves with opposite phase to the noise, thereby offsetting the environmental noise.

[0004] Generally speaking, the sources of ambient noise around the user are generally multi-directional and relatively complex, while existing open-ear headphones with active noise reduction function only have a feedback microphone in front of the speaker. The range of ambient noise collected is small, and the accuracy of the collected noise signal is also low, resulting in poor active noise reduction effect. Utility Model Content

[0005] The purpose of the embodiments of the present application is to provide an open-type headset to solve the technical problem in the prior art that only a feedback microphone is provided in front of a speaker, the range of environmental noise collected is small, and the accuracy of the noise signal collected is also low.

[0006] To achieve the above-mentioned purpose, the technical solution adopted in the present application is: to provide an open-type earphone, comprising: an earphone body, an ear hook, a feedback microphone and a first microphone array, wherein one end of the ear hook is connected to the earphone body; the feedback microphone is arranged on the earphone body to collect the ambient noise at the user's ear canal; the first microphone array is arranged on the ear hook to collect the ambient noise around the user's ear, and the first microphone array includes multiple feedforward microphones, and the multiple feedforward microphones are spaced apart along the length extension direction of the ear hook.

[0007] Optionally, the open earphone further includes a second microphone array, which is disposed on the earphone body and is used to collect the user's call voice and surrounding environmental noise.

[0008] Optionally, the second microphone array includes multiple call microphones, at least one of the call microphones is arranged at the bottom of the earphone body, and at least one of the call microphones is arranged at the back of the earphone body.

[0009] Optionally, the earphone body includes a shell, and a speaker and an audio processor arranged in the shell, the shell is provided with a sound outlet hole for transmitting the target sound of the speaker to the outside, the feedback microphone is arranged on the shell and located in front of the speaker, and the audio processor is electrically connected to the speaker, the feedback microphone and each of the feedforward microphones.

[0010] Optionally, the feedback microphone is located within a range of 0 mm to 12 mm in radius with the center point of the speaker as the center point of the circle.

[0011] Optionally, a first collection hole is provided on the shell, and the first collection hole and the sound outlet hole are located on the same side of the shell, and the feedback microphone is arranged in the shell and corresponds to the first collection hole.

[0012] Optionally, the first microphone array is arranged in the ear hook, and a plurality of second collecting holes are provided on the ear hook, the plurality of second collecting holes are spaced apart along the length extension direction of the ear hook, and the plurality of feedforward microphones are respectively arranged in one-to-one correspondence with the plurality of second collecting holes.

[0013] Optionally, the ear hook includes a curved section and an auxiliary section, one end of the curved section is connected to the earphone body, and the other end of the curved section is connected to the auxiliary section; the curved section and the auxiliary section are each provided with at least two of the feedforward microphones, and the feedforward microphone is provided at both the end of the curved section away from the auxiliary section and the end of the auxiliary section away from the curved section.

[0014] Optionally, the auxiliary section is provided with a accommodating cavity, and the open earphone further comprises a battery and a wire, the battery is arranged in the accommodating cavity, one end of the wire is electrically connected to the battery, and the other end passes through the curved section and is electrically connected to the earphone body.

[0015] Optionally, the open-type earphone further includes a rotating shaft, and one end of the ear hook is rotatably connected to the earphone body via the rotating shaft.

[0016] The beneficial effect of the open-type earphones provided by the present application is that, compared with the prior art, the open-type earphones of the present application are provided with a feedback microphone on the earphone body and a first microphone array on the ear hook, and the multiple feedforward microphones of the first microphone array are spaced apart along the length extension direction of the ear hook, thereby being able to realize multi-directional collection of environmental noise with a wide collection range. In addition, the environmental noise around the user's ear is collected by the first microphone array, and the earphone body preliminarily eliminates the environmental noise according to the environmental noise collected by the first microphone array. The environmental noise at the user's ear canal is collected by the feedback microphone, and the earphone body further eliminates the environmental noise according to the environmental noise collected by the feedback microphone, thereby effectively reducing or eliminating noise interference, and greatly improving the active noise reduction effect, allowing the target sound to be transmitted into the user's ear canal more purely, effectively improving the clarity of the sound quality, and thus being beneficial to improving the user's sense of experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art 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 paying creative labor.

[0018] Figure 1 Schematic diagram of the three-dimensional structure of the open-type earphone provided in the embodiment of the present application Figure 1 ;

[0019] Figure 2 A schematic cross-sectional structure diagram of an open-type earphone provided in an embodiment of the present application;

[0020] Figure 3 An exploded structural diagram of an ear hook provided in an embodiment of the present application;

[0021] Figure 4 A schematic diagram of a partial three-dimensional structure of an open-type headset provided in an embodiment of the present application;

[0022] Figure 5 Schematic diagram of the three-dimensional structure of the open-type earphone provided in the embodiment of the present application Figure 2 .

[0023] Description of main reference numerals:

[0024] 10. Earphone body; 11. Shell; 111. Sound outlet; 112. First collection hole; 113. Third collection hole; 114. Front cavity; 115. Rear cavity; 116. Inverted port; 12. Speaker; 13. Audio processor; 20. Ear hook; 21. Second collection hole; 22. Bending section; 23. Auxiliary section; 30. First microphone array; 31. Feedforward microphone; 40. Feedback microphone; 50. Battery; 60. Wire; 70. Second microphone array; 71. Talk microphone; 80. Shaft. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0026] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0027] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0028] In addition, the terms "second" and "first" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "second" or "first" may explicitly or implicitly include one or more of the feature. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] Please also read Figures 1 to 5 , the open-type earphones provided in the embodiments of the present application are now described.

[0030] See also Figure 1The open earphone includes: an earphone body 10, an ear hook 20, a first microphone array 30 and a feedback microphone 40, one end of the ear hook 20 is connected to the earphone body 10; the feedback microphone 40 is arranged on the earphone body 10, and is used to collect the environmental noise at the user's ear canal; the first microphone array 30 is arranged on the ear hook 20, and is used to collect the environmental noise around the user's ear, and the first microphone array 30 includes a plurality of feedforward microphones 31, and the plurality of feedforward microphones 31 are spaced apart along the length extension direction of the ear hook 20.

[0031] Optionally, the ear hook 20 is curved, such as a hook or a hook shape, etc. It can be understood that the ear hook 20 can be any shape suitable for the user to wear.

[0032] The feedback microphone 40 may be a microelectromechanical systems microphone (MEMS MIC) or an electret capacitor microphone (ECM MIC).

[0033] The feedforward microphone 31 may also be a MEMS MIC or an ECM MIC.

[0034] When the user wears the open earphone, the ear hook 20 is hung between the back of the user's ear and the head, and the earphone body 10 contacts the user's ear and faces and corresponds to the position of the triangular fossa of the ear. The first microphone array 30 is used to collect the environmental noise around the user's ear. The earphone body 10 analyzes and processes the environmental noise collected by the first microphone array 30, and generates a sound wave with a phase opposite to the noise, which cancels out the environmental noise, thereby achieving preliminary elimination of the environmental noise. The feedback microphone 40 is used to collect the environmental noise in the user's ear canal. The earphone body 10 analyzes and processes the environmental noise collected by the feedback microphone 40, and generates a sound wave with a phase opposite to the noise, which cancels out the environmental noise, thereby achieving further elimination of the environmental noise.

[0035] Among them, the environmental noise collected by the feedforward microphone 31 mainly refers to the sounds from various sources such as traffic, machine operation, human voice, etc. transmitted into the ear canal, and the environmental noise collected by the first microphone array 30 mainly refers to the sounds from various sources such as traffic, machine operation, human voice, etc. near the ear canal.

[0036] Compared with the prior art, the open earphones provided in the present application have a feedback microphone 40 arranged on the earphone body 10, a first microphone array 30 arranged on the ear hook 20, and the multiple feedforward microphones 31 of the first microphone array 30 are spaced apart along the length extension direction of the ear hook 20, so that the environmental noise can be collected in all directions with a wide collection range. In addition, the environmental noise around the user's ear is collected by the first microphone array 30, and the earphone body 10 preliminarily eliminates the environmental noise according to the environmental noise collected by the first microphone array 30. The environmental noise at the user's ear canal is collected by the feedback microphone 40, and the earphone body 10 further eliminates the environmental noise according to the environmental noise collected by the feedback microphone 40, thereby effectively reducing or eliminating the interference of noise, so that the active noise reduction effect is greatly improved, and the target sound is transmitted into the user's ear canal more purely, effectively improving the clarity of the sound quality, which is beneficial to improving the user's sense of experience.

[0037] In one embodiment of the present application, see Figure 1 and Figure 2 The earphone body 10 includes a shell 11, a speaker 12 and an audio processor 13 arranged in the shell 11, the shell 11 is provided with a sound outlet 111 for transmitting the target sound of the speaker 12 to the outside, the feedback microphone 40 is arranged on the shell 11 and is located in front of the speaker 12, and the audio processor 13 is electrically connected to the speaker 12, the feedback microphone 40 and each feedforward microphone 31.

[0038] A front cavity 114 and a rear cavity 115 are provided in the shell 11, and the sound outlet 111 is connected with the front cavity 114. The shell 11 is also provided with a bass reflex port 116, which is connected with the rear cavity 115. The bass reflex port 116 is used to exhaust the rear cavity 115. By adjusting the air permeability of the bass reflex port 116, the attenuation and boost of the low frequency can be changed, thereby adjusting the low frequency sound quality and volume. At the same time, the balance of the speaker 12 during vibration can be adjusted to reduce the distortion of the sound.

[0039] The speaker 12 is used to receive the electrical signal of the audio source of the audio processor 13, and amplify the electrical signal to convert it into a sound signal, and then transmit it to the ear canal of the user through the sound outlet 111.

[0040] The audio processor 13 is used to process the audio signal. For example, the audio processor 13 can realize wireless transmission with the original device through Bluetooth technology, transmit the audio signal from the original device to the speaker 12, decode the received audio signal during the transmission, and convert the digital signal into an analog signal so that the speaker 12 can play it correctly. The original device can be a mobile phone, a computer, etc.

[0041] The feedback microphone 40 is located in front of the speaker 12, which means that when the user wears the headset, the feedback microphone 40 is closer to the user's ear canal than the speaker 12.

[0042] Specifically, when worn, the housing 11 is provided with a sound outlet 111 on one side facing the user's ear, and the target sound output by the speaker 12 is transmitted to the user's ear canal through the sound outlet 111. The feedback microphone 40 collects the ambient noise at the user's ear canal in real time, and transmits the ambient noise signal to the audio processor 13. The audio processor 13 analyzes and processes the frequency, amplitude, phase and other characteristics of the ambient noise, and generates a sound wave opposite thereto. The opposite sound wave is output through the speaker 12 and cancels out the ambient noise, thereby achieving active noise reduction. The first microphone array 30 transmits the collected ambient noise to the audio processor 13. The audio processor 13 analyzes and processes the frequency, amplitude, phase and other characteristics of the ambient noise, and generates a sound wave opposite thereto. The opposite sound wave is output through the speaker 12 and cancels out the ambient noise, thereby achieving active noise reduction.

[0043] In one embodiment of the present application, the feedback microphone 40 is located within a range of 0 mm to 12 mm in radius with the center point of the loudspeaker 12 as the center point of the circle.

[0044] Optionally, the feedback microphone 40 is disposed on the inner wall of the housing 11 , and the feedback microphone 40 is 10 mm away from the center point of the speaker 12 .

[0045] In one embodiment of the present application, a first collection hole 112 is provided on the shell 11 , and the first collection hole 112 and the sound outlet hole 111 are located on the same side of the shell 11 . The feedback microphone 40 is disposed in the shell 11 and corresponds to the first collection hole 112 .

[0046] Specifically, the feedback microphone 40 is provided with a pickup hole, which faces the first collection hole 112 , that is, the pickup hole of the feedback microphone 40 faces the outside of the shell 11 , and the feedback microphone 40 collects ambient noise in the user's ear canal through the pickup hole and the first collection hole 112 .

[0047] Of course, in other embodiments, the first collecting hole 112 may not be provided on the shell 11 , the feedback microphone 40 is disposed inside the shell 11 , and the pickup hole of the feedback microphone 40 faces the speaker 12 , that is, the pickup hole of the feedback microphone 40 faces inside the shell 11 .

[0048] It should be noted that in other embodiments, the feedback microphone 40 may also be disposed outside the housing 11 .

[0049] In one embodiment of the present application, see Figure 1 , Figure 3 and Figure 5The first microphone array 30 is arranged in the ear hook 20, and a plurality of second collecting holes 21 are arranged on the ear hook 20. The plurality of second collecting holes 21 are spaced apart along the length extension direction of the ear hook 20. The plurality of feedforward microphones 31 are respectively arranged in one-to-one correspondence with the plurality of second collecting holes 21, and the plurality of feedforward microphones 31 collect ambient noise through the corresponding second collecting holes 21 respectively.

[0050] The opening direction of the second collection hole 21 can be upward or downward, as long as the second collection hole 21 is not blocked by the user's skin when worn.

[0051] Specifically, see Figure 3 and Figure 5 The ear hook 20 includes a curved section 22 and an auxiliary section 23, one end of the curved section 22 is connected to the earphone body 10, and the other end of the curved section 22 is connected to the auxiliary section 23; the curved section 22 and the auxiliary section 23 are each provided with at least two feedforward microphones 31, and the feedforward microphone 31 is provided at one end of the curved section 22 away from the auxiliary section 23 and at the other end of the auxiliary section 23 away from the curved section 22.

[0052] Among them, the curved section 22 is made of soft material, and the auxiliary section 23 is made of hard material. When worn, the curved section 22 of the ear hook 20 is hung on the upper part of the back of the user's ear, and the auxiliary section 23 is located at the lower part of the back of the ear and fits the user's head.

[0053] Optionally, the number of the feedforward microphones 31 is six, and three feedforward microphones 31 are respectively provided in the curved section 22 and the auxiliary section 23 .

[0054] By arranging at least two feedforward microphones 31 in the curved section 22 and the auxiliary section 23, and the feedforward microphone 31 is arranged at both the end of the curved section 22 away from the auxiliary section 23 and the end of the auxiliary section 23 away from the curved section 22, the first microphone array 30 can collect ambient noise in more directions and over a wider range, which is beneficial to improving the accuracy of ambient noise collection, and further beneficial to improving the effect of active noise reduction.

[0055] In one embodiment of the present application, see Figure 3 and Figure 4 The auxiliary section 23 is provided with a receiving cavity, and the open earphone further comprises a battery 50 and a wire 60 . The battery 50 is arranged in the receiving cavity, one end of the wire 60 is electrically connected to the battery 50 , and the other end passes through the curved section 22 and is electrically connected to the earphone body 10 .

[0056] The battery 50 is used to provide power for the earphone to operate. By arranging the battery 50 in the auxiliary section 23, the weight of the earphone body 10 is effectively reduced, and it is helpful to balance the overall weight of the open earphone.

[0057] In one embodiment of the present application, see Figure 4 and Figure 5 The open earphone also includes a second microphone array 70, which is arranged on the earphone body 10 and is used to collect the user's call voice and surrounding environmental noise.

[0058] Among them, the second microphone array 70 is electrically connected to the audio processor 13. When the user is on a call, the second microphone array 70 collects the sound made by the user and the surrounding environmental noise. The earphone body 10 analyzes and processes the call sound and environmental noise collected by the second microphone array 70, and generates a sound wave with an opposite phase to the noise, which offsets the environmental noise, thereby achieving noise reduction processing for the call, thereby reducing the impact of environmental noise on the call and improving the clarity of the call.

[0059] The environmental noise collected by the second microphone array 70 includes but is not limited to traffic, machine operation, human voice, etc.

[0060] Optionally, the second microphone array 70 includes a plurality of call microphones 71 , at least one call microphone 71 is disposed at the bottom of the earphone body 10 , and at least one call microphone 71 is disposed at the back of the earphone body 10 .

[0061] The bottom of the earphone body 10 refers to the part of the earphone body 10 close to the user's mouth when worn; the back of the earphone body 10 refers to the part of the earphone body 10 away from the user's ear when worn.

[0062] Specifically, a plurality of third collecting holes 113 are provided on the shell 11 , a second microphone array 70 is arranged inside the shell 11 , a plurality of call microphones 71 are arranged one-to-one corresponding to the third collecting holes 113 , and the call microphones 71 collect ambient noise and user voice outside the shell 11 through the third collecting holes 113 .

[0063] Optionally, there are two call microphones 71 , one of which is disposed on the peripheral side of the earphone body 10 , and the other of which is disposed on the back of the earphone body 10 .

[0064] In one embodiment of the present application, see Figure 1 and Figure 5 The open earphone also includes a rotating shaft 80, and one end of the ear hook 20 is rotatably connected to the earphone body 10 through the rotating shaft 80.

[0065] Optionally, one end of the ear hook 20 is rotatably connected to one end of the housing 11 via a rotating shaft 80, so that the earphone body 10 can rotate relative to the ear hook 20 to adjust the comfort of the user when wearing it.

[0066] In addition, the ear hook 20 cooperates with the shaft 80 to achieve a more secure wearing of the open earphone, preventing the earphone from loosening or falling off during the user's exercise or activities. At the same time, the ear hook 20 cooperates with the shaft 80 to disperse the pressure of the earphone on the user's ear, reducing the discomfort when wearing the earphone for a long time, providing the user with a more stable and comfortable earphone wearing experience, which is suitable for various scenarios such as exercise and work.

[0067] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An open-type headphone, characterized in that: include: An earphone body, an ear hook, a feedback microphone and a first microphone array, wherein one end of the ear hook is connected to the earphone body; The feedback microphone is arranged on the earphone body and is used to collect the ambient noise in the ear canal of the user; The first microphone array is arranged on the ear hook and is used to collect environmental noise around the user's ear. The first microphone array includes a plurality of feedforward microphones, and the plurality of feedforward microphones are spaced apart along the length extension direction of the ear hook.

2. The open earphone according to claim 1, characterized in that: The open earphone also includes a second microphone array, which is arranged on the earphone body and is used to collect the user's call voice and surrounding environmental noise.

3. The open earphone according to claim 2, characterized in that: The second microphone array includes a plurality of call microphones, at least one of which is disposed at the bottom of the earphone body, and at least one of which is disposed at the back of the earphone body.

4. The open earphone according to claim 1, characterized in that: The earphone body includes a shell, a speaker and an audio processor arranged in the shell, the shell is provided with a sound outlet hole for transmitting the target sound of the speaker to the outside, the feedback microphone is arranged on the shell and located in front of the speaker, and the audio processor is electrically connected to the speaker, the feedback microphone and each of the feedforward microphones.

5. The open earphone according to claim 4, characterized in that: The feedback microphone is located within a range of 0mm-12mm in radius with the center point of the speaker as the center point.

6. The open earphone according to claim 4, characterized in that: The shell is provided with a first collection hole, the first collection hole and the sound outlet hole are located on the same side of the shell, and the feedback microphone is arranged in the shell and corresponds to the first collection hole.

7. The open earphone according to claim 1, characterized in that: The first microphone array is arranged in the ear hook, and a plurality of second collection holes are arranged on the ear hook. The plurality of second collection holes are spaced apart along the length extension direction of the ear hook, and the plurality of feedforward microphones are respectively arranged in one-to-one correspondence with the plurality of second collection holes.

8. The open earphone according to any one of claims 1 to 7, characterized in that: The ear hook includes a curved section and an auxiliary section, one end of the curved section is connected to the earphone body, and the other end of the curved section is connected to the auxiliary section; the curved section and the auxiliary section are each provided with at least two of the feedforward microphones, and the feedforward microphone is provided at one end of the curved section away from the auxiliary section and at another end of the auxiliary section away from the curved section.

9. The open earphone according to claim 8, characterized in that: The auxiliary section is provided with a receiving cavity, and the open earphone further comprises a battery and a wire. The battery is arranged in the receiving cavity, one end of the wire is electrically connected to the battery, and the other end passes through the curved section and is electrically connected to the earphone body.

10. The open earphone according to any one of claims 1 to 7, characterized in that: The open-type earphone further comprises a rotating shaft, and one end of the ear hook is rotatably connected to the earphone body via the rotating shaft.

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