CN213186537U

CN213186537U - Sound generating device and head-mounted electronic equipment

Info

Publication number: CN213186537U
Application number: CN202022482701.7U
Authority: CN
Inventors: 张志彬; 郭翔; 王继宗
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2020-10-29
Filing date: 2020-10-29
Publication date: 2021-05-11
Anticipated expiration: 2030-10-29

Abstract

The utility model discloses a sound generating mechanism and head-mounted electronic equipment, sound generating mechanism includes casing and two sound production monomers, the casing includes main part and extension, the extension is certainly the lateral part of main part extends, be equipped with the installation cavity in the main part, the inside of extension is equipped with out the sound chamber, the extension is kept away from the position of main part is equipped with the intercommunication the sound hole in sound chamber, two sound production monomers install in the installation cavity, two sound production monomer's play sound end is relative setting or sets up mutually oppositely mutually, wherein, the installation cavity quilt two sound production monomer intervals are formed with preceding sound chamber and back sound chamber, wherein, preceding sound chamber with play sound chamber intercommunication, back sound chamber with go out the sound chamber interval, the chamber wall in back sound chamber is provided with the exposure hole. The utility model provides a technical scheme can improve the sound leakage problem of the sound generating mechanism who has the hole of revealing among the prior art to improve the size and the tone quality of sound.

Description

Sound generating device and head-mounted electronic equipment

Technical Field

The utility model belongs to the technical field of the technique of electroacoustic product and specifically relates to a sound generating mechanism and head-mounted electronic equipment.

Background

VR (Virtual Reality) devices are highly new technologies appearing in recent years, and provide visual, auditory, and tactile sensory simulations to users, so that users can feel as if they are present.

Auditory system has become important module in the VR, the integrated module of acoustics also becomes the important ring of VR design, for effectively utilizing the VR space, the developer makes the integrated device of acoustics with wearing wall of VR equipment, can forward the sound monomer in order to utilize the inner space of rotation axis position, can utilize again to wear the wall and use as the cavity, but owing to wear the wall longer than conventional integrated audio amplifier, and the integrated audio amplifier of VR equipment is the open rear chamber, the rear chamber is provided with the hole that leaks promptly, so, the sound leaks the problem comparatively outstanding, influence sound size and tone quality.

SUMMERY OF THE UTILITY MODEL

The main objective of the utility model is to provide a sound generating mechanism and head-mounted electronic equipment aims at improving the sound leakage problem that has the sound generating mechanism in the hole that leaks among the prior art to improve the size and the tone quality of sound.

In order to achieve the above object, the utility model provides a sound generating device is used in head-mounted electronic equipment, sound generating device includes:

the shell comprises a main body part and an extension part, wherein the main body part is provided with two opposite end parts and a side part connected with the two end parts, the extension part extends out of the side part of the main body part, a mounting cavity is arranged in the main body part, one end part of the main body part is used for being mounted on an equipment main body of the head-mounted electronic equipment, a sound outlet cavity is arranged in the extension part, and a sound outlet hole communicated with the sound outlet cavity is formed in the position, far away from the main body part, of the extension part; and the number of the first and second groups,

the two sound generating units are arranged in the mounting cavity, and the sound generating ends of the two sound generating units are arranged oppositely or oppositely;

wherein, the installation cavity quilt two sound production monomer intervals are formed with preceding sound cavity and back sound cavity, wherein, preceding sound cavity with go out the sound cavity intercommunication, back sound cavity with go out the sound cavity interval, the chamber wall in back sound cavity is provided with the hole of revealing.

Optionally, the two sounding single bodies are arranged at intervals along the direction of the two end portions of the main body portion.

Optionally, the sound emitting ends of the two sound emitting units are arranged oppositely, the front sound cavity is formed between the two sound emitting units, and the two rear sound cavities are formed between the two ends of the mounting cavity and the two sound emitting units;

the cavity walls of the two rear sound cavities are provided with the leakage holes.

Optionally, the extension part extends from the middle position of the side part of the main body part, so that the extension part divides the main body part into two mounting parts, and the mounting cavity is arranged from one mounting part to the other mounting part;

the two sounding monomers are correspondingly arranged in the inner cavities of the two mounting parts.

Optionally, the two sound generating units are the same two sound generating units.

Optionally, the two sounding units are arranged in a mirror image mode.

Optionally, the extension is disposed in a flat manner.

The utility model also provides a head-mounted electronic equipment, including equipment main body and sound generating mechanism, sound generating mechanism includes casing and two sound generating units, the casing includes main part and extension, the main part has relative two tip and connects the lateral part of two tip, the extension extends from the lateral part of main part, be equipped with the installation cavity in the main part, and an end of main part is used for installing to head-mounted electronic equipment's equipment main body, the inside of extension is equipped with the sound-emitting cavity, the position that the extension is kept away from the main part is equipped with the sound-emitting hole that communicates the sound-emitting cavity, two sound generating units, install in the installation cavity, the sound-emitting end of two sound generating units is relative setting or sets up oppositely, wherein, the installation cavity by two sound generating units interval is formed with preceding sound cavity and back sound cavity, the front sound cavity is communicated with the sound outlet cavity, the rear sound cavity is spaced from the sound outlet cavity, and a leakage hole is formed in the cavity wall of the rear sound cavity.

Optionally, the head-mounted electronic device comprises one of AR, MR, VR, CR, HR and XR.

Optionally, the sound generating devices are arranged to be two, one ends of the two sound generating devices correspond to the two ends of the device main body in a rotatable mode, the head-mounted electronic device further comprises a connecting belt, and the connecting belt is connected with the shell of the sound generating devices in two modes.

The technical scheme of the utility model, wear-type electronic equipment's sound generating mechanism is provided with two sound production monomers, two free sound production ends of sound production are relative setting or back of the body mutually sets up, for this reason, the speaker centering sound production monomer, during the same signal of input, the vibration opposite direction of two free vibrating diaphragms of sound production, two sound production monomers are right the vibration power direction of sound generating mechanism's casing is opposite, and two opposite direction's effort can offset each other, so can reduce the vibration of sound generating mechanism's casing, and then can reduce the sound of revealing the hole reveals the problem, and then, reduces the sound wave that reveals from revealing the hole and the sound wave that goes out from the sound hole and take place to interfere, in order to influence sound generating mechanism's sound size and tone quality.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a cut-away schematic side view of an embodiment of the sound generating device provided by the present invention;

FIG. 2 is a front schematic view of the sound generator of FIG. 1, cut away;

fig. 3 is a frequency response curve diagram corresponding to an embodiment of the sound generating device provided by the present invention;

fig. 4 is a 2-5 harmonic distortion curve diagram corresponding to an embodiment of the sound generating apparatus provided by the present invention;

fig. 5 is a 10-35 harmonic distortion curve diagram corresponding to an embodiment of the sound generating apparatus provided by the present invention.

The utility model provides an embodiment reference numeral explains:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a head-mounted electronic equipment, head-mounted electronic equipment is for the head-mounted electronic equipment who has the speaker, for example, one of AR (Augmented Reality equipment), MR (Mixed Reality equipment), VR (Virtual Reality equipment), CR (graphic Reality equipment), HR (Holographic Reality equipment) and XR (Extended Reality equipment), perhaps head-mounted electronic equipment is intelligent glasses and so on.

The head-mounted electronic device comprises a device body and a sound generating device, wherein the device body is used as a main body member of the head-mounted electronic device, the device body comprises a main body frame and an electronic device arranged on the main body frame, for the VR device, the device body further comprises a lens barrel and a lens arranged on the lens barrel, obviously, the device body may further comprise other components, which are not described in detail herein.

The sound generating device is matched with the main body part of the equipment to generate sound effects in a specific scene, and therefore the sound generating device correspondingly extends out of the end part of the main body of the equipment to be capable of being unfolded towards one side (generally called as a rear side) of the main body of the equipment to conduct sound to ears of a user.

In view of this, the sound generating apparatus provided by the present invention can improve the above resonance problem, please refer to fig. 1 and fig. 2, the sound generating apparatus 100 includes a casing 1 and two sound generating units 2, the casing 1 includes a main body 11 and an extension portion 12, the main body 11 has two opposite end portions and a side portion connecting the two end portions, the extension portion 12 extends from the side portion of the main body 11, a mounting cavity is disposed in the main body 11, one end portion of the main body 11 is used to be mounted to an apparatus main body of the head-mounted electronic apparatus, a sound outlet cavity 121 is disposed inside the extension portion 12, a sound outlet 122 communicating with the sound outlet cavity 121 is disposed at a position of the extension portion 12 away from the main body 11, the two sound generating units 2 are mounted in the mounting cavity, and sound outlet ends of the two sound generating units 2 are disposed oppositely or arranged oppositely, wherein, the installation cavity quilt 2 intervals of two phonation monomer are formed with preceding sound cavity 3 and back sound cavity, wherein, preceding sound cavity 3 with go out sound cavity 121 intercommunication, back sound cavity with go out sound cavity 121 interval, the chamber wall in back sound cavity is provided with the hole of revealing (not shown).

The technical scheme of the utility model, wear-type electronic equipment's sound generating mechanism 100 is provided with two sound production monomers 2, the end of sounding of two sound production monomers 2 is relative setting or sets up mutually back to back, for this reason, the speaker centering sound production monomer 2 during the same signal of input, the vibration opposite direction of two sound production monomer 2's vibrating diaphragm, two sound production monomers 2 are right the vibration power direction of sound generating mechanism 100's casing 1 is opposite, and two opposite direction's effort can offset each other, so can reduce the vibration of sound generating mechanism 100's casing 1, and then can reduce the problem is revealed to the sound of revealing hole, and then, reduces the sound wave that reveals from revealing hole and the sound wave that comes out from sound-emitting hole 122 and take place to interfere, in order to influence sound generating mechanism 100's sound size and tone quality.

As shown in fig. 3, 1, from the frequency response curve, the performance of the sound generating device of this patent using two (sound generating) units is significantly high at 100-300Hz, which is the appearance of sound leakage attenuation, and after 1Khz, the loudness is significantly better than one (sound generating) unit. As shown in fig. 4 and 5, from the 2-5 th harmonic distortion and the 10-35 th harmonic distortion, the distortion is significantly reduced and the sound quality is improved.

From the data, this patent provides the scheme and can effectively reduce harmonic distortion, improves tone quality.

The sounding monomer 2 comprises a magnetic circuit system and a vibration system, the vibration system comprises a voice coil and a vibrating diaphragm, the voice coil which is electrified drives the vibrating diaphragm to vibrate under the action of a magnetic field of the magnetic circuit system, sound waves are generated by vibration, the sound waves are generated by the vibration system, and then one end of the vibration system of the sounding monomer 2 is called as a 'sound outlet end'.

In this embodiment, in order to utilize the case 1 to have a sufficient thickness at the position of the main body 11, the two speaker units are spaced apart from each other along the direction of the two ends of the main body 11, that is, the two speaker units are spaced apart from each other along the thickness direction of the main body 11, and further, the extension 12, which is the other part of the case 1 of the sound generating apparatus 100, can be set to be thin enough to adapt to the trend of the light and thin development, and optionally, the two sound generating units 2 are spaced apart from each other along the direction of the two ends of the main body 11.

In this embodiment, the sound-emitting end of two sound-emitting monomers 2 is relative setting, form between two sound-emitting monomers 2 preceding sound cavity 3, the both ends of installation cavity with be formed with two between two sound-emitting monomers 2 back sound cavity (not shown), and two the chamber wall in back sound cavity all is provided with the hole that leaks, so arrange can be convenient preceding sound cavity 3 with sound-emitting cavity 121 communicates.

Further, the extension portion 12 extends from the middle position of the side portion of the main body portion 11, so that the extension portion 12 divides the main body portion 11 into two installation portions (not shown), the installation cavity is arranged from one installation portion to the other installation portion, and the two sounding units 2 are correspondingly arranged in the inner cavities of the two installation portions.

In this embodiment, two sound production monomers 2 are two same sound production monomers 2, so, make two sound production monomers 2's vibration can realize offsetting better to reduce the sound wave of leaking the hole and reveal. Furthermore, the two sound-emitting single bodies 2 are arranged in a mirror image manner, so that the distances of the two sound-emitting single bodies 2 at each position in the circumferential direction are kept consistent, and the vibration of the two sound-emitting single bodies can be well offset.

Since the extension portion 12 needs to extend to a sufficient length to extend the sound outlet hole 121 to the ear position of the wearer, the extension portion 12 is not too thick, and on the other hand, needs to be disposed lengthwise, so that, in the present embodiment, the extension portion 12 is disposed flatly.

The number of the sound generating devices 100 is not limited, and may be one or two, and other numbers of the latter, in this embodiment, the sound generating devices 100 are two, and one ends of the two sound generating devices 100 correspond to the two ends of the device main body in a rotatable manner.

In an embodiment, in order to enhance the wearing firmness of the head-mounted electronic device, the head-mounted electronic device further includes a connecting band, generally, a main material of the connecting band may be a soft material, for example, a material such as silicon rubber, or a material such as cloth, and the connecting band connects the two housings 1 of the sound generating devices 100 to form a frame together with the device main body, so as to be worn by a wearer. Obviously, the connecting band is not an essential component of the head-mounted electronic device, and can be clamped with the head of the wearer and hung on the ear of the wearer through the shells 1 of the two sound generating devices 100, so as to be worn firmly.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. A sound generating apparatus for use in a head-mounted electronic device, the sound generating apparatus comprising:

2. The sound generating apparatus according to claim 1, wherein said two sound generating units are arranged at a spacing in a direction in which both end portions of said main body portion are located.

3. The sound generating device according to claim 2, wherein the sound generating ends of the two sound generating units are disposed oppositely, the front sound cavity is formed between the two sound generating units, and the two rear sound cavities are formed between the two ends of the mounting cavity and the two sound generating units;

4. The sound generating apparatus of claim 3, wherein said extension extends from a medial position of a side portion of said main body portion such that said extension divides said main body portion into two mounting portions, said mounting cavity running from one said mounting portion to the other said mounting portion;

5. The sound-emitting device of claim 1, wherein the two sound-emitting units are the same two sound-emitting units.

6. The sound generating device of claim 5, wherein said two sound generating units are mirror images.

7. The sound generating apparatus of claim 1, wherein said extension is disposed in a flat configuration.

8. A head-mounted electronic device, comprising:

an apparatus main body; and the number of the first and second groups,

the sound generating apparatus according to any one of claims 1 to 7, wherein one end of the housing of the sound generating apparatus is connected to an end of the device main body.

9. The head-mounted electronic device of claim 8, wherein the head-mounted electronic device comprises one of AR, MR, VR, CR, HR, and XR.

10. The head-mounted electronic device of claim 8, wherein the number of the sound generating devices is two, one end of each of the two sound generating devices is rotatably connected to the two ends of the device body, and the head-mounted electronic device further comprises a connecting band, and the connecting band connects the housings of the two sound generating devices.