CN213186536U

CN213186536U - Sound generating device and head-mounted electronic equipment

Info

Publication number: CN213186536U
Application number: CN202022481550.3U
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 sound production monomer, the casing includes main part and extension, the extension extends from the lateral part of main part, be equipped with the installation cavity in the main part, the inside of extension is equipped with out the sound chamber, the position that the main part was kept away from to the extension is equipped with the sound outlet that communicates out the sound chamber, sound production monomer is located in the installation cavity, and sound production monomer will the installation cavity interval forms preceding sound chamber and back sound chamber, wherein, preceding sound chamber with go out the sound chamber intercommunication, the chamber wall inboard in sound outlet chamber is provided with sound-absorbing part, sound-absorbing part is located between sound outlet and the sound production monomer; the technical scheme of the utility model the resonance of sound generating mechanism's casing can be reduced to reduce because resonance sound wave influences the free sound wave of sound production, it is right to sound generating mechanism's response frequency produces adverse effect.

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.

The auditory system has become an important module in VR, and the acoustic integration module also becomes an important ring of VR design, and in order to effectively utilize the VR space, developers make the wearing wall of VR equipment into an acoustic integration device, namely the internal space at the position of a rotating shaft can be utilized to turn a loudspeaker unit, and the wearing wall can be utilized to be used as a cavity, but because the wearing wall is longer than a conventional integrated sound box, and the VR equipment integrated sound box is an open rear cavity, more harmonic peaks can appear in the intermediate frequency of frequency response in the aspect of acoustic performance.

SUMMERY OF THE UTILITY MODEL

The main objective of the present invention is to provide a sound generating device and a head-mounted electronic device, which aims to improve the frequency response of the head-mounted electronic device with the sound generating device in the prior art.

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 sound generating unit is arranged in the mounting cavity and divides the mounting cavity into a front sound cavity and a rear sound cavity;

the front sound cavity is communicated with the sound outlet cavity, a sound absorption part is arranged on the inner side of the cavity wall of the sound outlet cavity, and the sound absorption part is located between the sound outlet hole and the sound generating unit.

Optionally, the sound absorbing part is made of sound absorbing cotton or sound absorbing particles.

Optionally, the sound absorbing part is detachably mounted on a cavity wall of the sound outlet cavity.

Optionally, the sound absorbing part is fixed to a cavity wall of the sound emitting cavity in an adhering manner.

Optionally, the sound absorbing portion is disposed at a position where the cavity wall of the sound-emitting cavity resonates with the sound-emitting unit.

Optionally, the main body portion is disposed in a cylindrical shape, and the extending portion extends from a cylindrical surface of the main body portion.

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 sound generating unit, 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, just 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 kept away from the main part is equipped with the sound-emitting hole that communicates the sound-emitting cavity, sound generating unit locates in the installation cavity, and sound generating unit will the installation cavity interval forms preceding sound cavity and back sound cavity, wherein, preceding sound cavity with sound-emitting cavity intercommunication, the chamber wall inboard in sound-emitting cavity is provided with sound absorbing part, the sound absorption part is positioned between the sound outlet and the sound production single body.

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, the chamber wall inboard in the sound-emitting chamber is provided with sound-absorbing part, sound-absorbing part is located the sound-emitting hole with between the sound production monomer, for this reason, sound-absorbing part will absorb some sound waves, and then can reduce the wall portion in sound-emitting chamber with resonance takes place for sound production monomer's sound wave to reduce because the sound wave that resonance produced influences the sound production monomer and produce, and make sound generating mechanism's frequency response produces the problem of adverse effect.

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 high 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:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Sound producing device	12	Sound outlet
1	Shell body	101	Front acoustic cavity
				1a	Main body part	102	Rear acoustic cavity
1b	Extension part		2					Sound monomer
				10	Mounting cavity	3	Sound absorbing part
11	Sound outlet cavity

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 a sound generating unit 2, the casing 1 includes a main body portion 1a and an extension portion 1b, the main body portion 1a has two opposite end portions and a side portion connecting the two end portions, the extension portion 1b extends from the side portion of the main body portion 1a, a mounting cavity 10 is disposed in the main body portion 1a, one end portion of the main body portion 1a is used for being mounted to an apparatus main body of a head-mounted electronic apparatus, a sound emitting cavity 11 is disposed in the extension portion 1b, a sound emitting hole 12 communicating with the sound emitting cavity 11 is disposed at a position of the extension portion 1b away from the main body portion 1a, the sound generating unit 2 is disposed in the mounting cavity 10, and the sound generating unit 2 separates the mounting cavity 10 into a front sound cavity 101 and a rear sound cavity, the front sound cavity 101 is communicated with the sound outlet cavity 11, a sound absorption part 3 is arranged on the inner side of the cavity wall of the sound outlet cavity 11, and the sound absorption part 3 is located between the sound outlet hole 12 and the sound generating unit 2.

The technical scheme of the utility model, the chamber wall inboard in the sound-emitting cavity 11 is provided with sound-absorbing part 3, sound-absorbing part 3 is located sound-emitting hole 12 with between the sound production monomer 2, for this reason, sound-absorbing part 3 will absorb some sound waves, and then can reduce sound-emitting cavity 11's wall with the chance that resonance took place for sound production monomer 2's sound wave to reduce because the sound wave that resonance produced influences the sound wave that sound production monomer 2 produced, and make sound production device 100's frequency response produces the problem of adverse effect.

The main function of the sound absorption part 3 is to absorb sound, so the material of the sound absorption part 3 is a sound absorption material, specifically, in this embodiment, the material of the sound absorption part 3 includes sound absorption cotton or sound absorption particles, and obviously, other materials with sound absorption effect are all available.

Referring to fig. 3, the performance of the sound generating unit 2 with the sound absorbing material added therein is shown to be smoother in high frequency as shown in the frequency response curve, referring to fig. 4, the distortion is obviously reduced and the sound quality is improved as seen from the higher harmonic distortion, and the scheme provided by the patent can effectively reduce the harmonic distortion and improve the sound quality as seen from the data.

The sound absorption part 3 is arranged on the inner side of the cavity wall of the sound-emitting cavity 11, can be fixedly bonded or fixed by other fixing parts, can be fixedly bonded by viscose glue, and can be detachably fixed by other fixing parts, for example, the sound absorption part 3 is arranged in a frame as a whole, and the frame is detachably arranged on the cavity wall of the sound-emitting cavity 11.

The sound absorbing part 3 is located between the sound generating unit 2 and the sound outlet 12, and in order to better improve the problem of resonance, the sound absorption part 3 is arranged at the position where the cavity wall of the sound outlet cavity 11 and the sounding monomer 2 resonate, the resonance position of the cavity wall of the sound-emitting cavity 11 and the sound-emitting monomer 2 can be obtained through experiments or actual tests, and in order to arrange the sound absorbing part 3 at a position where the wall of the sound emitting chamber 11 and the sounding unit 2 resonate with each other, the length of the sound absorbing part 3 is set as long as possible, and specifically, in this embodiment, the sound absorbing part 3 is provided in a longitudinal shape and extends from the sound generating unit 2 toward the sound outlet 12, so that the sound absorbing part 3 can traverse the cavity wall of the sound emitting cavity 11 to resonate with the sound emitting unit 2.

The main body portion 1a and the device body of the head-mounted electronic device are not limited in shape, and in this embodiment, the main body portion 1a is cylindrical, for this reason, the main body portion 1a may be rotatably mounted with the device body of the head-mounted electronic device, and the extending portion 1b extends from a cylindrical surface of the main body portion 1 a.

Since the extension portion 1b needs to extend to a sufficient length to extend the sound outlet 12 to the ear position of the wearer, the extension portion 1b is not too thick, and on the other hand, needs to be disposed lengthwise, so that the extension portion 1b is disposed flatly in this embodiment.

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 as claimed in claim 1, wherein the sound absorbing member is made of a material selected from the group consisting of sound absorbing cotton and sound absorbing particles.

3. The sound-generating apparatus as claimed in claim 1, wherein said sound-absorbing portion is detachably attached to a wall of said sound-emitting chamber.

4. The sound-generating apparatus as claimed in claim 1, wherein said sound-absorbing portion is adhesively secured to a wall of said sound-generating chamber.

5. The sound-generating apparatus according to claim 1, wherein said sound-absorbing portion is disposed at a position where a wall of said sound-generating chamber resonates with said sound-generating unit.

6. The apparatus according to claim 1, wherein said main body is cylindrically configured and said extension extends from a cylindrical surface of said main body.

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 9, wherein the two sound generators are provided, one ends of the two sound generators are rotatably connected with two ends of the device body, and the head-mounted electronic device further comprises a connecting band, and the connecting band connects the two shells of the sound generators.