Head-mounted device

Abstract

The present invention provides a head-mounted device, comprising a main body, a left bracket and a right bracket arranged at both ends of the main body, and speaker modules are provided inside both the left bracket and the right bracket; wherein, the speaker module includes a sound generating unit and a vibration motor embedded in the sound generating unit, wherein the sound generating unit includes a vibration system and a magnetic circuit system, the vibration motor is embedded inside the magnetic circuit system, wherein the vibration direction of the vibration motor is opposite to the vibration direction of the vibration system of the sound generating unit, so as to cancel the vibration caused by the operation of the sound generating unit. By using the present invention, it is possible to solve the problem that the entire device vibrates due to the operation of the sound generating unit in the existing head-mounted device, thereby causing the head-mounted device to be prone to recognition errors.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic products, and more specifically, to a head-mounted device. Background Art

[0002] Currently, for head-mounted devices such as VR (Virtual Reality) and AR (Augmented Reality) glasses, when the speaker is working, due to the vibration of the vibration system, the entire head-mounted device vibrates, which affects the IMU (Inertial Measurement Unit) signal, resulting in recognition errors and thus affecting the user experience. Summary of the Invention

[0003] In view of the above problems, the purpose of the present invention is to provide a head-mounted device to solve the problem that the existing head-mounted device vibrates due to the operation of the sound generating unit, resulting in easy recognition errors of the head-mounted device.

[0004] The head-mounted device provided by the present invention includes a main body, a left bracket and a right bracket arranged at both ends of the main body, and speaker modules are provided inside both the left bracket and the right bracket; wherein,

[0005] The speaker module includes a sound generating unit and a vibration motor embedded in the sound generating unit, wherein,

[0006] The sound generating unit includes a vibration system and a magnetic circuit system, and the vibration motor is embedded inside the magnetic circuit system, wherein the vibration direction of the vibration motor is opposite to the vibration direction of the vibration system of the sound generating unit to cancel the vibration caused by the operation of the sound generating unit.

[0007] In addition, a preferred solution is that the sound generating unit further includes a vibration system, a front cover and a housing, and the cavity formed by the front cover and the housing is used to accommodate the magnetic circuit system and the vibration system, wherein,

[0008] The magnetic circuit system includes a magnetic yoke fixed to the housing, side magnets arranged around the magnetic yoke close to the front cover, and side magnetic plates correspondingly arranged on the side of the side magnets away from the magnetic yoke, wherein the side magnets and the side magnetic plates form a central accommodation cavity.

[0009] In addition, a preferred solution is that the vibration motor is embedded in the central accommodation cavity.

[0010] In addition, a preferred solution is that a first FPC is provided on the vibration motor, and the vibration motor transmits information to external devices through the first FPC.

[0011] In addition, in a preferred embodiment, the vibration system includes a diaphragm, a voice coil fixed to one side of the diaphragm, and a dome top fixed to the center position of the diaphragm; wherein,

[0012] the voice coil and the dome top are fixed on the same side of the diaphragm, or are respectively fixed on both sides of the diaphragm.

[0013] In addition, in a preferred structure, the side magnets on each side are arranged in pairs, a magnetic gap is formed between each pair of side magnets, and the voice coil is arranged in the magnetic gap.

[0014] In addition, in a preferred embodiment, the vibration motor includes an oscillator and a stator, the oscillator includes a magnet, the stator includes a coil, and the coil is electrically connected to the first FPC.

[0015] In addition, in a preferred embodiment, a second FPC is provided on the vibration system, and the vibration system transmits information to external devices through the second FPC.

[0016] In addition, in a preferred embodiment, the sound generating unit further includes a rear cover for covering the rear cavity of the housing.

[0017] In addition, in a preferred embodiment, each bracket includes a bracket main body and a bracket cover adapted to the bracket main body, and at least one bracket main body is provided with a groove for accommodating the speaker module.

[0018] As can be seen from the above technical solutions, the head-mounted device provided by the present invention has a vibration motor embedded in the sound generating unit of the head-mounted device. The vibration direction of the vibration motor is opposite to the vibration direction of the vibration system of the sound generating unit. The vibration of the vibration motor counteracts the vibration caused by the operation of the sound generating unit in the opposite direction; thereby solving the problem that the existing head-mounted device is prone to recognition errors due to the vibration of the entire device caused by the operation of the sound generating unit, and improving the user experience.

[0019] To achieve the above and related purposes, one or more aspects of the present invention include the features described in detail hereinafter. The following description and the accompanying drawings illustrate certain exemplary aspects of the present invention in detail. However, these aspects merely indicate some of the various ways in which the principles of the present invention can be used. In addition, the present invention is intended to cover all such aspects and their equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] By referring to the following description in conjunction with the accompanying drawings, and with a more comprehensive understanding of the present invention, other objects and results of the present invention will become more apparent and easier to understand. In the drawings:

[0021] Figure 1Stereogram of the head-mounted device according to an embodiment of the present invention;

[0022] Figure 2 Exploded view of the head-mounted device according to an embodiment of the present invention;

[0023] Figure 3 Is Figure 1 Cross-sectional view of;

[0024] Figure 4 Is Figure 3 Partially enlarged schematic view of;

[0025] Figure 5 Schematic diagram of the exploded structure of the speaker module.

[0026] The reference numerals therein include: 1, right temple; 2, right temple speaker module; 3, left temple; 4, left temple speaker module; 5, spectacle frame; 21, front cover; 22, vibration system; 23, vibration motor; 24, magnetic circuit system; 25, housing; 26, rear cover; 27, rear cavity.

[0027] In all the drawings, the same reference numerals indicate similar or corresponding features or functions. Detailed implementation manners

[0028] In the following description, for the purpose of illustration, in order to provide a comprehensive understanding of one or more embodiments, many specific details are set forth. However, it is obvious that these embodiments can also be implemented without these specific details. In other instances, well-known structures and devices are shown in block diagram form for the convenience of describing one or more embodiments.

[0029] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 construed as a limitation to the present invention.

[0030] In view of the problem that the existing head-mounted device mentioned above generates vibrations in the whole device due to the operation of the sound generating unit, resulting in easy recognition errors of the head-mounted device, the present invention provides a head-mounted device.

[0031] The following will describe in detail the specific embodiments of the present invention with reference to the accompanying drawings.

[0032] To illustrate the structure of the head-mounted device provided by the present invention, Figures 1-5 the head-mounted device is exemplarily marked from different perspectives. Specifically, Figure 1 shows the three-dimensional structure of the head-mounted device according to an embodiment of the present invention; Figure 2 shows the exploded structure of the head-mounted device according to an embodiment of the present invention; Figure 3 is Figure 1 the cross-sectional structure of; Figure 4 is Figure 3 the partially enlarged structure of; Figure 5 is the exploded structure of the speaker module.

[0033] The head-mounted device provided by the present invention includes a main body, a left bracket and a right bracket arranged at both ends of the main body, and speaker modules are arranged inside both the left bracket and the right bracket; the speaker module includes a sound generating unit and a vibration motor embedded in the sound generating unit, wherein the sound generating unit includes a vibration system and a magnetic circuit system, the vibration motor is embedded inside the magnetic circuit system, and the vibration direction of the vibration motor is opposite to the vibration direction of the vibration system of the sound generating unit to cancel the vibration caused by the operation of the sound generating unit. The head-mounted device provided by the present invention can be, but is not limited to, VR (Virtual Reality), AR (Augmented Reality), MR (Mixed Reality), XR (Extended Reality), smart glasses, etc.

[0034] In the present invention, the following head-mounted device will be described in detail taking a smart glasses as an example.

[0035] As Figures 1 to 5 collectively shown, the head-mounted device provided by the present invention includes a spectacle frame 5, a left temple 3 and a right temple 1 arranged at both ends of the spectacle frame 5, and speaker modules respectively embedded in the left temple 3 and the right temple 3; wherein, the speaker module includes a sound generating unit and a vibration motor 23 embedded in the sound generating unit, wherein the sound generating unit includes a vibration system 22 and a magnetic circuit system 24, the vibration motor 23 is embedded inside the magnetic circuit system 24, and the vibration direction of the vibration motor 23 is opposite to the vibration direction of the vibration system of the sound generating unit to cancel the vibration caused by the operation of the sound generating unit.

[0036] In an embodiment of the present invention, the sound generating unit includes a magnetic circuit system 24, a front cover 21 and a housing 25. The cavity formed by the front cover 21 and the housing 25 is used to accommodate the magnetic circuit system 24 and the vibration system 22. Among them, the magnetic circuit system 22 includes a magnetic yoke fixed to the housing 25, side magnets arranged at the peripheral positions of the magnetic yoke close to the front cover, and side magnetic yoke plates correspondingly arranged on the side of the side magnets away from the magnetic yoke. Among them, the side magnets and the side magnetic yoke plates form a central accommodation cavity; wherein, the vibration motor 23 is embedded in the central accommodation cavity.

[0037] In an embodiment of the present invention, the vibration system 22 includes a diaphragm, a voice coil fixed to one side of the diaphragm, and a dome top fixed to the center position of the diaphragm; wherein, the voice coil and the dome top can be fixed on the same side of the diaphragm, or respectively fixed on both sides of the diaphragm. Wherein, the diaphragm includes a central area fixed to the dome top and a surround portion provided at the edge of the central area, and the surround portion is a convex or concave structure.

[0038] In an embodiment of the present invention, the side magnets on each side are arranged in pairs, a magnetic gap is formed between each pair of side magnets, and the voice coil is disposed in the magnetic gap. When the sound generating unit works, that is, when the voice coil starts to vibrate, the vibration motor 23 vibrates in a direction opposite to the vibration direction of the voice coil to cancel the vibration caused by the operation of the sound generating unit. Wherein, a first FPC is provided on the vibration motor 23, and the vibration motor transmits information to an external device through the first FPC. That is to say, when the sound generating unit vibrates, after the vibration motor 23 receives vibration information through the first FPC, it vibrates actively to cancel the vibration of the whole machine brought by the vibration of the sound generating unit in the reverse direction, improves the vibration pickup of the whole machine IMU, reduces recognition errors, and improves the user experience.

[0039] Wherein, a second FPC is provided on the vibration system 22, and the vibration system transmits information to an external device through the second FPC. The sound generating unit further includes a rear cover 26, and the rear cover 26 is used to cover the rear cavity 27 of the housing.

[0040] In an embodiment of the present invention, the vibration motor includes a vibrator and a stator, the vibrator includes a magnet, the stator includes a coil, and the coil is electrically connected to the first FPC.

[0041] In addition, in an embodiment of the present invention, each bracket includes a bracket body and a bracket cover adapted to the bracket body, and at least one bracket body is provided with a groove for accommodating a speaker module. Specifically, each temple includes a temple body and a temple cover adapted to the temple body, and a groove for accommodating a speaker module is respectively provided on each temple body. The speaker module is assembled in the cavity formed by the temple body and the temple cover.

[0042] That is to say, the left temple includes a left temple body and a left temple cover adapted to the left temple body, a first groove for accommodating the left temple speaker module 4 is provided on the left temple body, and the left temple speaker module 4 is assembled in the cavity formed by the left temple body and the left temple cover; the right temple includes a right temple body and a right temple cover adapted to the right temple body, a second groove for accommodating the right temple speaker module 2 is provided on the right temple body, and the right temple speaker module 2 is assembled in the cavity formed by the right temple body and the right temple cover.

[0043] As can be seen from the above embodiments, in the head-mounted device provided by the present invention, a vibration motor is embedded in the sound generating unit of the head-mounted device, and the vibration direction of the vibration motor is opposite to the vibration direction of the vibration system of the sound generating unit. The vibration of the vibration motor cancels the vibration caused by the operation of the sound generating unit in the opposite direction, thereby solving the problem that the existing head-mounted device is prone to recognition errors due to the vibration of the entire device caused by the operation of the sound generating unit, and providing a better user experience.

[0044] As described above by way of example with reference to the drawings, the head-mounted device according to the present invention has been described. However, those skilled in the art should understand that various improvements can be made to the above-mentioned head-mounted device proposed by the present invention without departing from the content of the present invention. Therefore, the protection scope of the present invention should be determined by the content of the appended claims.

Claims

1. A head-mounted device, comprising a main body, a left bracket and a right bracket arranged at both ends of the main body, and speaker modules are arranged inside both the left bracket and the right bracket; characterized in that, The speaker module includes a sound generating unit and a vibration motor embedded in the sound generating unit, wherein, The sound generating unit includes a vibration system and a magnetic circuit system, and the vibration motor is embedded inside the magnetic circuit system, wherein the vibration direction of the vibration motor is opposite to the vibration direction of the vibration system of the sound generating unit to cancel the vibration caused by the operation of the sound generating unit; wherein, A first FPC is arranged on the vibration motor. When the vibration system of the sound generating unit vibrates, after the vibration motor receives vibration information through the first FPC, it vibrates actively to cancel the vibration of the whole machine caused by the vibration of the sound generating unit in the reverse direction; The magnetic circuit system includes a magnetic yoke, side magnets arranged on the magnetic yoke, and side magnetic plates correspondingly arranged on the side of the side magnets away from the magnetic yoke. Among them, a central accommodation cavity is formed between the side magnets and the side magnetic plates, and the vibration motor is embedded in the central accommodation cavity; The side magnets on each side are arranged in pairs, and a magnetic gap is formed between each pair of side magnets, and the voice coil of the vibration system is arranged in the magnetic gap; When the sound generating unit works and the voice coil starts to vibrate, the vibration motor vibrates in the direction opposite to the vibration direction of the voice coil to cancel the vibration caused by the operation of the sound generating unit.

2. The head-mounted device according to claim 1, characterized in that, The sound generating unit further includes a front cover and a housing, and the cavity surrounded by the front cover and the housing is used to accommodate the magnetic circuit system and the vibration system, wherein, The magnetic yoke is fixed to the housing, and the side magnets are arranged around the magnetic yoke close to the front cover.

3. The head-mounted device according to claim 1, characterized in that, The vibration motor transmits information with external devices through the first FPC.

4. The head-mounted device according to claim 1, characterized in that, The vibration system includes a diaphragm, a voice coil fixed to one side of the diaphragm, and a dome top fixed to the center position of the diaphragm; wherein, The voice coil and the dome top are fixed on the same side of the diaphragm, or are respectively fixed on both sides of the diaphragm.

5. The head-mounted device according to claim 3, characterized in that, The vibration motor includes an oscillator and a stator, the oscillator includes a magnet, the stator includes a coil, and the coil is electrically connected to the first FPC.

6. The head-mounted device according to claim 1, characterized in that, A second FPC is arranged on the vibration system, and the vibration system transmits information with external devices through the second FPC.

7. The head-mounted device according to claim 2, characterized in that, The sound generating unit further includes a rear cover, and the rear cover is used to cover the rear cavity of the housing.

8. The head-mounted device according to claim 1, characterized in that, Each bracket includes a bracket main body and a bracket cover adapted to the bracket main body, and at least one bracket main body is provided with a groove for accommodating the speaker module.

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