Earphone main body and open type earphone
By setting the feedback microphone in the groove of the bump in the headset body, the problem of the open headset microphone pickup hole being far away from the earring membrane is solved, achieving more accurate noise pickup and better active noise reduction effect.
Patent Information
- Application Number
- CN202420505308.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-15
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-03-15
AI Technical Summary
The feedback microphone pickup hole of the open headphones is far away from the earring membrane, resulting in a large deviation in sound pickup, which in turn affects the active noise reduction effect.
A headphone body is designed, wherein the feedback microphone is arranged in the groove of the bump protruding from the inside to the outside, and the sound is picked up through the sound pickup hole and the through hole to shorten the distance between the microphone and the ear periosteum.
By shortening the distance between the feedback microphone and the ear periosteum, the accuracy of the microphone picking up sound is improved, thereby improving the effect of active noise reduction.
Smart Images
Figure CN222638658U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of earphones, and more specifically, relates to an earphone body and an open earphone. Background Art
[0002] Open-back headphones are a type of headphone that do not enter the ear canal. The sound is transmitted to the user's ear canal through the air. Since open-back headphones do not enter the ear, they will not directly stimulate the eardrum, thereby greatly reducing damage to the ear.
[0003] Since users can receive external sounds and sounds emitted by the headphones at the same time when wearing open-back headphones, in order to reduce noise, some open-back headphones are designed with noise reduction functions. The noise reduction function is generally divided into passive noise reduction and active noise reduction. 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. The active noise reduction function collects ambient noise through the feedback microphone in the headphones, and then analyzes and processes it through the built-in circuit board to generate sound waves with an opposite phase to the noise, thereby offsetting the noise and achieving the effect of noise reduction.
[0004] At present, the feedback microphone of open-back headphones is mainly installed in the front cavity of the headphone body. However, due to the large size of open-back headphones, the headphone body cannot be inserted into the ear canal when worn. The pickup hole of the feedback microphone is far away from the eardrum, resulting in a large deviation in the sound picked up by the feedback microphone, which in turn leads to unsatisfactory active noise reduction effect. Utility Model Content
[0005] The purpose of the embodiments of the present application is to provide an earphone body and an open-type earphone to solve the technical problem in the prior art that the pickup hole of the feedback microphone of the open-type earphone is far away from the ear drum, resulting in a large deviation in the sound picked up by the feedback microphone, which in turn leads to an unsatisfactory active noise reduction effect.
[0006] To achieve the above-mentioned purpose, the technical solution adopted in the present application is: to provide an earphone main body, including: an earphone shell, a speaker and a feedback microphone, the earphone shell has a face wall, the speaker is arranged in the earphone shell, and cooperates with the face wall to form a front cavity, the face wall is provided with a sound outlet hole, the sound outlet hole is connected with the front cavity, the face wall is formed with a bulge protruding from the inside to the outside, the bulge is provided with a groove and a through hole, the groove is connected with the front cavity, the through hole is connected with the groove, the feedback microphone is arranged in the groove, the feedback microphone is provided with a sound pickup hole, and the sound pickup hole is correspondingly connected with the through hole.
[0007] The beneficial effect of the earphone body provided by the present application is that, compared with the prior art, when in use, the earphone body fits the ear with the face wall facing the user's ear canal, the sound output by the speaker is transmitted to the user's ear canal through the sound outlet hole, and the feedback microphone picks up the sound in the user's ear canal through the sound pickup hole and the through hole. Since the protrusion protrudes from the inside to the outside, when the feedback microphone is set in the groove of the protrusion, it is beneficial to shorten the distance between the feedback microphone and the ear periosteum, so that the sound pickup hole of the feedback microphone is closer to the user's ear periosteum. In this way, the feedback microphone can more accurately pick up the noise and target sound in the user's ear canal, which is beneficial to improve the effect of active noise reduction.
[0008] In one embodiment, the two ends of the surface wall along the length direction of the earphone shell are respectively a first end and a second end, and the surface wall is divided into a first area and a second area along the length direction of the earphone shell, the first area is arranged close to the first end, and the second area is arranged close to the second end, the area of the first area is less than twice the area of the second area, and the protrusion is arranged in the first area.
[0009] In one embodiment, the protrusion is in the shape of a tube.
[0010] In one embodiment, the protrusion is arranged obliquely toward the center of the surface wall.
[0011] In one embodiment, the protrusion has a central axis, and an angle a between the central axis and the length direction of the earphone shell is 20°-80°, and an angle b between the central axis and the thickness direction of the earphone shell is 30°-70°.
[0012] In one embodiment, the height of the bump is 2 mm-8 mm.
[0013] In one embodiment, the protrusion is a flat square structure, and the groove is a square.
[0014] In one of the embodiments, the thickness of the protrusion gradually increases from the center of the surface wall to the edge of the surface wall, and the through hole is provided at an end of the protrusion with a larger thickness.
[0015] The present application also provides an open-type earphone, comprising the open-type earphone described in any one of the above items.
[0016] The beneficial effect of the open-type earphones provided by the present application lies in that, compared with the prior art, by adopting the above-mentioned open-type earphones, when in use, the earphone body fits against the ear, with the face wall facing the user's ear canal, the sound output by the speaker is transmitted to the user's ear canal through the sound outlet hole, and the feedback microphone picks up the sound in the user's ear canal through the sound pickup hole and the through hole. Since the protrusion protrudes from the inside to the outside, when the feedback microphone is set in the groove of the protrusion, it is beneficial to shorten the distance between the feedback microphone and the ear periosteum, so that the sound pickup hole of the feedback microphone is closer to the user's ear periosteum. In this way, the feedback microphone can more accurately pick up the noise and target sound in the user's ear canal, which is beneficial to improving the effect of active noise reduction.
[0017] In one embodiment, the open earphone further includes an ear hook, one end of the ear hook is connected to the earphone shell, and the ear hook is curved. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] 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.
[0019] Figure 1 A schematic diagram of the three-dimensional structure of an open-type earphone provided in the first embodiment of the present application;
[0020] Figure 2 A front view of an open-type earphone provided in the first embodiment of the present application;
[0021] Figure 3 For along Figure 1 The cross-sectional structure diagram along the AA line;
[0022] Figure 4 A schematic diagram of the three-dimensional structure of an earphone shell provided in the second embodiment of the present application.
[0023] Description of main reference numerals:
[0024] 100, earphone body; 200, ear hook; 10, earphone shell; 11, face wall; 111, first end; 112, second end; 113, first area; 114, second area; 12, front cavity; 13, sound outlet; 14, bump; 141, groove; 142, through hole; 20, speaker; 30, feedback microphone; 31, sound pickup hole; 40, circuit board; K, dotted line; Z, center axis; F1, length direction; F2, thickness direction. DETAILED DESCRIPTION
[0025] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.
[0026] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element 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.
[0027] In addition, the terms "first" and "second" 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. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0028] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0029] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0030] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.
[0031] Please also read Figures 1 to 3 , the earphone body 100 provided in the embodiment of the present application is now described.
[0032] Please also read Figure 1 and Figure 3 The earphone body 100 includes an earphone shell 10, a speaker 20 and a feedback microphone 30. The earphone shell 10 has a surface wall 11. The speaker 20 is arranged in the earphone shell 10 and cooperates with the surface wall 11 to form a front cavity 12. The surface wall 11 is provided with a sound outlet hole 13, and the sound outlet hole 13 is connected to the front cavity 12. The surface wall 11 is formed with a convex block 14 protruding from the inside to the outside. The convex block 14 is provided with a groove 141 and a through hole 142. The groove 141 is connected to the front cavity 12, and the through hole 142 is connected to the groove 141. The feedback microphone 30 is arranged in the groove 141. The feedback microphone 30 is provided with a sound pickup hole 31, and the sound pickup hole 31 is correspondingly connected to the through hole 142.
[0033] Among them, the face wall 11 refers to the part of the earphone shell 10 close to the user's ear canal when the user wears the earphone body 100 on the ear. It can be understood that when the user wears the earphone body 100 on the ear, the face wall 11 faces and covers the user's ear canal, and the sound output by the speaker 20 is transmitted to the user's ear canal through the sound outlet hole 13, and the feedback microphone 30 picks up the sound in the user's ear canal through the sound pickup hole 31 and the through hole 142.
[0034] Compared with the prior art, the earphone body 100 provided in the present application is, when in use, fitted to the ear, with the face wall 11 facing the ear canal of the user, the sound output by the speaker 20 is transmitted to the ear canal of the user through the sound outlet 13, and the feedback microphone 30 picks up the sound in the ear canal of the user through the sound pickup hole 31 and the through hole 142. Since the protrusion 14 protrudes from the inside to the outside, when the feedback microphone 30 is set in the groove 141 of the protrusion 14, it is beneficial to shorten the distance between the feedback microphone 30 and the ear periosteum, so that the sound pickup hole 31 of the feedback microphone 30 is closer to the ear periosteum of the user. In this way, the feedback microphone 30 can more accurately pick up the noise and target sound in the ear canal of the user, which is beneficial to improve the effect of active noise reduction.
[0035] Please also refer to Figure 3 The open-ear headphones also include a circuit board 40. The speaker 20 and the feedback microphone 30 are both electrically connected to the circuit board 40. When active noise reduction is performed, the feedback microphone 30 feeds back the picked-up sound signal to the circuit board 40. After the circuit board 40 analyzes and processes the sound signal, it generates a sound wave with a phase opposite to the noise to offset the noise, thereby eliminating noise interference near the ear canal, allowing the target sound output by the speaker 20 to be transmitted to the user's ear canal more purely, thereby improving the clarity of the sound quality.
[0036] Specifically in this embodiment, the feedback microphone 30 is electrically connected to the circuit board 40 via a flexible printed circuit (FPC). Since the flexible printed circuit can be bent and folded freely, is not easily damaged, and is thin and light in design and flat in shape, the feedback microphone 30 is electrically connected to the circuit board 40 via the flexible printed circuit, which facilitates wiring, makes the structure more compact, and reduces space occupation.
[0037] In one embodiment of the present application, see Figure 2 The two ends of the surface wall 11 along the length direction F1 of the earphone shell 10 are respectively a first end 111 and a second end 112. The surface wall 11 is divided into a first area 113 and a second area 114 along the length direction F1 of the earphone shell 10. The first area 113 is arranged close to the first end 111, and the second area 114 is arranged close to the second end 112. The area of the first area 113 is less than twice the area of the second area 114, and the protrusion 14 is arranged in the first area 113.
[0038] When worn, the first end 111 is close to the user's face, and the second end 112 is away from the user's face. For ease of understanding, the first area 113 and the second area 114 are divided by a dotted line K.
[0039] By setting the area of the first area 113 to be smaller than twice the area of the first area 113 , that is, the first area 113 occupies less than two-thirds of the surface area of the face wall 11 , the protrusion 14 is arranged in the first area 113 . When worn, the protrusion 14 is closer to the user's ear canal, and the feedback microphone 30 is closer to the user's eardrum, which is beneficial to improving the accuracy of the feedback microphone 30 in picking up sound.
[0040] In one embodiment of the present application, the protrusion 14 is in a tube shape.
[0041] For details, please refer to Figure 1 and Figure 3 The protrusion 14 protrudes from the inside to the outside in a pipe shape. Optionally, the cross section of the protrusion 14 is circular.
[0042] By setting the protrusion 14 to a tube shape, when worn, the protrusion 14 can protrude into the ear, allowing the feedback microphone 30 to penetrate deeper into the user's ear, thereby making the sound pickup hole 31 of the feedback microphone 30 closer to the user's ear periosteum. In this way, the sound picked up by the feedback microphone 30 is closer to the sound in the user's ear canal, which is beneficial to improving the performance of active noise reduction.
[0043] Optionally, the protrusion 14 is arranged to be inclined toward the center of the surface wall 11 .
[0044] By tilting the protrusion 14 toward the center of the face wall 11 , the protrusion 14 can be effectively prevented from squeezing the user's ear and causing discomfort to the user when worn. At the same time, the through hole 142 is closer to the user's ear canal, which is beneficial to improving the accuracy of the feedback microphone 30 in picking up sound.
[0045] Furthermore, the protrusion 14 has a central axis Z, an angle a between the central axis Z and the length direction F1 of the earphone shell 10 is 20°-80°, and an angle b between the central axis Z and the thickness direction F2 of the earphone shell 10 is 30°-70°.
[0046] Optionally, the angle a between the central axis Z of the protrusion 14 and the length direction F1 of the earphone shell 10 is 60°, and the angle b between the central axis Z of the protrusion 14 and the thickness direction F2 of the earphone shell 10 is 30°.
[0047] In one embodiment of the present application, the height of the bump 14 is 2 mm-8 mm.
[0048] Optionally, the height of the bump 14 may be 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm or 8 mm.
[0049] By setting the height of the bump 14 to 2mm-8mm, when worn, the bump 14 can extend deeper into the user's ear, but the bump 14 will not squeeze the user's ear and cause discomfort to the user's ear. In addition, setting the height of the bump 14 to 2mm-8mm can adapt to the ear sizes of different users and has strong adaptability.
[0050] In another embodiment of the present application, please refer to Figure 4 The protrusion 14 is a flat square structure, and the groove 141 is a square.
[0051] Optionally, the protrusion 14 is substantially a rectangular structure, and the groove 141 is also rectangular.
[0052] Furthermore, the thickness of the protrusion 14 gradually increases from the center of the surface wall 11 to the edge of the surface wall 11 , and the through hole 142 is disposed at the end of the protrusion 14 with a larger thickness.
[0053] By gradually increasing the thickness of the protrusion 14 from the center of the face wall 11 to the edge of the face wall 11, when worn, the thicker protrusion 14 can penetrate deeper into the user's ear, that is, the through hole 142 is closer to the user's ear periosteum. In this way, the sound picked up by the feedback microphone 30 through the sound pickup hole 31 and the through hole 142 is closer to the sound in the user's ear canal, which is beneficial to improving the effect of active noise reduction, and the end of the protrusion 14 with a smaller thickness will not squeeze the user's ear, effectively ensuring the wearing comfort.
[0054] Please also read Figure 1 and Figure 2 The present application also provides an open-type earphone, comprising the open-type earphone of any one of the above-mentioned embodiments.
[0055] Compared with the prior art, the open earphones provided in the present application adopt the above-mentioned open earphones. When in use, the earphone body 100 is fitted to the ear, and the face wall 11 faces the user's ear canal. The sound output by the speaker 20 is transmitted to the user's ear canal through the sound outlet 13, and the feedback microphone 30 picks up the sound in the user's ear canal through the sound pickup hole 31 and the through hole 142. Since the protrusion 14 protrudes from the inside to the outside, when the feedback microphone 30 is set in the groove 141 of the protrusion 14, it is beneficial to shorten the distance between the feedback microphone 30 and the ear periosteum, so that the sound pickup hole 31 of the feedback microphone 30 is closer to the user's ear periosteum. In this way, the feedback microphone 30 can more accurately pick up the noise and target sound in the user's ear canal, which is beneficial to improve the effect of active noise reduction.
[0056] Specifically in this embodiment, the open-type earphone further includes an ear hook 200, one end of which is connected to the earphone shell 10, and the ear hook 200 is curved. When worn, the ear hook 200 is hung on the ear of the user. It can be understood that the open-type earphone is an ear hook earphone.
[0057] Optionally, the open-type earphone is a wireless Bluetooth earphone, and the open-type earphone also includes a battery, which is disposed in the earphone shell 10 or in the ear hook 200 , and the battery is used to provide power to the earphone body 100 .
[0058] 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 earphone body, characterized in that: It includes an earphone shell, a speaker and a feedback microphone, the earphone shell has a face wall, the speaker is arranged in the earphone shell and cooperates with the face wall to form a front cavity, the face wall is provided with a sound outlet hole, the sound outlet hole is connected with the front cavity, the face wall is formed with a convex block protruding from the inside to the outside, the convex block is provided with a groove and a through hole, the groove is connected with the front cavity, the through hole is connected with the groove, the feedback microphone is arranged in the groove, the feedback microphone is provided with a sound pickup hole, and the sound pickup hole is correspondingly connected with the through hole.
2. The earphone body according to claim 1, characterized in that: The two ends of the surface wall along the length direction of the earphone shell are respectively a first end and a second end. The surface wall is divided into a first area and a second area along the length direction of the earphone shell. The first area is arranged close to the first end, and the second area is arranged close to the second end. The area of the first area is less than twice the area of the second area, and the protrusion is arranged in the first area.
3. The earphone body according to claim 1, characterized in that: The projection is in the shape of a pipe.
4. The earphone body according to claim 3, characterized in that: The protrusion is arranged obliquely toward the center of the surface wall.
5. The earphone body according to claim 3, characterized in that: The protrusion has a central axis, and an angle a between the central axis and the length direction of the earphone shell is 20°-80°, and an angle b between the central axis and the thickness direction of the earphone shell is 30°-70°.
6. The earphone body according to claim 3, characterized in that: The height of the protrusion is 2mm-8mm.
7. The earphone body according to claim 1, characterized in that: The protrusion is a flat square structure, and the groove is a square.
8. The earphone body according to claim 1, characterized in that: The thickness of the protrusion gradually increases from the center of the surface wall to the edge of the surface wall, and the through hole is arranged at the end of the protrusion with a larger thickness.
9. An open-type headphone, characterized in that: Comprising the open earphone as described in any one of claims 1-8.
10. The open earphone according to claim 9, characterized in that: The open earphone also includes an ear hook, one end of which is connected to the earphone shell, and the ear hook is curved.