CN115442718A

CN115442718A - Head-mounted device

Info

Publication number: CN115442718A
Application number: CN202211055028.6A
Authority: CN
Inventors: 王景伟; 刘中建; 陈国强
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2022-12-06

Abstract

The invention provides head-mounted equipment which comprises a shell and at least two loudspeaker units contained in the shell, wherein a positive end and a negative end are respectively arranged on each loudspeaker unit, the two loudspeaker units are connected in parallel through a power line, the power line comprises a first cable and a second cable, the first cable is electrically connected with the negative end of each loudspeaker unit, and the second cable is electrically connected with the positive end of each loudspeaker unit. The invention can solve the problems of low operation efficiency, large occupied rear cavity volume, high material cost and the like caused by the fact that the existing head-mounted equipment adopts a plurality of cables to be connected with two loudspeaker monomers.

Description

Head-mounted device

Technical Field

The invention relates to the technical field of electronic products, in particular to a head-mounted device.

Background

With the rapid development of electronic equipment, higher requirements are put on the performance of the loudspeaker of the electronic equipment, and the design of placing 2 loudspeaker monomers in a cavity formed by a shell is gradually applied; when selecting Cable (Cable) line design, the conventional design thinking: adopt 4 Cable lines to be connected with the positive negative pole of 2 kernels (speaker monomer) respectively, this kind of design brings the following problem:

1) The 4 Cable wires need different colors, correspond to specific pad positions according to the colors, are poor in foolproof performance and affect the operating efficiency of a production line;

2) 4 Cable wires need to be combined together by using a thicker heat-shrinkable tube, so that more rear cavity volume is occupied;

3) The design mode needs more manual arrangement and alignment, and automatic feeding cannot be realized; and Cable line material costs are higher.

Disclosure of Invention

In view of the above problems, an object of the present invention is to provide a head-mounted device, so as to solve the problems of low operation efficiency, large occupied rear cavity volume, high material cost, etc. caused by the connection of a plurality of cables and two speaker units in the existing head-mounted device.

The invention provides a head-mounted device, which comprises a shell and at least two loudspeaker units accommodated in the shell, wherein,

be provided with positive terminal and negative pole end on every speaker monomer respectively, two speaker monomers are parallelly connected through the power cord, the power cord includes first cable conductor and second cable conductor, first cable conductor is connected with the free negative pole end electricity of every speaker, the second cable conductor is connected with the free positive terminal electricity of every speaker.

In addition, it is preferable that the housing includes an upper case and a lower case, and a housing groove for housing the speaker unit is provided in the upper case.

Further, it is preferable that the first electric cable and the second electric cable are joined together by a heat shrinkable tube and fixed in the housing.

Further, it is preferable that the first and second electric cables include a conductive wire, an insulator wrapping the conductive wire, and a stripped portion removing the insulator to expose the conductive wire, wherein,

the end part of the lead is not wrapped by an insulator, and the stripping part and the end part of the lead are arranged at intervals.

In addition, preferably, an end of the lead wire of the first cable wire and an end of the lead wire of the second cable wire are welded to a negative terminal and a positive terminal of the same speaker cell, respectively, and the peeling portion of the first cable wire and the peeling portion of the second cable wire are welded to a negative terminal and a positive terminal of another speaker cell.

Further, it is preferable that the positive terminal and the negative terminal are located on the same side of the speaker unit, and the power supply line is located on the same side of at least two speaker units.

In addition, it is preferable that the number of the speaker units is two, and the speaker units include a first speaker unit and a second speaker unit, wherein,

the end part of the wire of the first cable wire is welded at the negative electrode end of the first loudspeaker monomer, and the end part of the wire of the second cable wire is welded at the positive electrode end of the first loudspeaker monomer;

the stripping part of the first cable is welded at the negative end of the second loudspeaker monomer, and the stripping part of the second cable is welded at the positive end of the second loudspeaker monomer.

In addition, the preferred structure is that the head-mounted device further comprises a main body part and two supporting arms formed by the shell, the two supporting arms are positioned at two ends of the main body part, and at least two loudspeaker units are arranged in at least one supporting arm.

Further, it is preferable that the speaker unit includes a housing, and a vibration system and a magnetic circuit system fixed to the housing, wherein,

the vibration system comprises a vibrating diaphragm, a voice coil fixed on one side of the vibrating diaphragm and a ball top fixed at the central position of the vibrating diaphragm;

the voice coil and the top of the ball are fixed on the same side of the vibrating diaphragm or fixed on two sides of the vibrating diaphragm respectively;

the vibrating diaphragm comprises a central area fixed with the top of the ball and a folded ring part arranged at the edge of the central area, and the folded ring part is of a convex or concave structure.

Further, it is preferable that the magnetic circuit system includes a central magnetic circuit, a side magnetic circuit provided in the periphery of the central magnetic circuit, and a yoke fixed to the central magnetic circuit and the side magnetic circuit, wherein the yoke is fixed to the case;

and a magnetic gap is arranged between the central magnetic circuit and the side magnetic circuit, and the voice coil is inserted into the magnetic gap and sleeved outside the central magnetic circuit.

According to the technical scheme, the two loudspeaker units in the shell are connected in parallel through the two cables, so that the number of connecting wires is reduced, the volume in the cavity is increased due to the reduction of the number of the wire harnesses, the line connection reliability is improved, and the wire harness connection error rate is reduced. Two cables are used in combination, the automatic feeding is realized more simply, fool-proofing is not needed, the manufacturing process cost is reduced, meanwhile, the number of wire harnesses is reduced, the number of corresponding plugs and connectors is reduced, and the material cost is also reduced.

To the accomplishment of the foregoing and related ends, one or more aspects of the invention comprise the features hereinafter fully described. The following description and the annexed drawings set forth in detail certain illustrative aspects of the invention. These aspects are indicative, however, of but a few of the various ways in which the principles of the invention may be employed. Further, the present invention is intended to include all such aspects and their equivalents.

Drawings

Other objects and results of the present invention will become more apparent and more readily appreciated by reference to the following description taken in conjunction with the accompanying drawings, and as the invention is more fully understood. In the drawings:

FIG. 1 is an exploded view of a headset according to an embodiment of the invention;

FIG. 2 is a schematic diagram of a cable structure according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a dual cable and a dual speaker unit according to an embodiment of the present invention;

FIG. 4 is a perspective view of a headset according to an embodiment of the invention;

fig. 5 isbase:Sub>A cross-sectional view taken along linebase:Sub>A-base:Sub>A of fig. 4.

Wherein the reference numerals include: 1. a lower case 2, a power line 3, a speaker unit 4, an upper case 21, a first cable line 22, a second cable line 211, a first lead end 212, a first stripping portion 221, a second lead end 222, a second stripping portion, 23, a heat shrinkable tube, 31, a first speaker unit, 32, a second speaker unit, 311, a first negative terminal, 312, a first positive terminal, 321, a second negative terminal, 322, a second positive terminal, 41, a first accommodating groove, 42, and a second accommodating groove.

The same reference numbers in all figures indicate similar or corresponding features or functions.

Detailed Description

In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that such embodiment(s) may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

The invention provides a head-mounted device, aiming at the problems that the prior head-mounted device adopts a plurality of cables to be connected with two loudspeaker monomers, so that the working efficiency is low, the occupied rear cavity volume is large, the material cost is high and the like.

Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

In order to illustrate the structure of the head-mounted device provided by the present invention, fig. 1-5 respectively show the head-mounted device exemplarily from different angles. In particular, fig. 1 shows a headset exploded structure according to an embodiment of the invention; FIG. 2 illustrates a cable structure according to an embodiment of the present invention; FIG. 3 illustrates a dual cable line to dual speaker cell connection according to an embodiment of the present invention; FIG. 4 illustrates a headset stereoscopic structure according to an embodiment of the invention; fig. 5 shows the structure of fig. 4 in sectionbase:Sub>A-base:Sub>A.

As shown in fig. 1 to 5, the head-mounted device provided by the present invention includes a housing, and at least two speaker units 3 housed in the housing, wherein each speaker unit is provided with a positive terminal and a negative terminal, the two speaker units are connected in parallel through a power line 2, the power line 2 includes a first cable 21 and a second cable 22, the first cable 21 is electrically connected to the negative terminal of each speaker unit, and the second cable is electrically connected to the positive terminal of each speaker unit.

The head-mounted device provided by the invention can be, but is not limited to, VR (virtual reality), AR (augmented reality), MR (mixed reality), XR (extended reality), smart glasses and the like.

In the embodiment of the invention, the outer shell comprises an upper shell 4 and a lower shell 1, and a containing groove for containing the loudspeaker monomer is arranged in the upper shell 4. In the embodiment shown in fig. 1 to 5, the number of speakers is two, the two speaker units are the first speaker unit 31 and the second speaker unit 32, the accommodating grooves formed in the upper case 4 are the first accommodating groove 41 and the second accommodating groove 42, the first accommodating groove 41 accommodates the first speaker unit 31, and the second accommodating groove 42 accommodates the second speaker unit 32.

Each speaker unit is provided with a positive terminal and a negative terminal, the positive terminal is a positive pad, the negative terminal is a negative pad, the first speaker unit 31 is provided with a first negative terminal 311 and a first positive terminal 312, and the second speaker unit 32 is provided with a second negative terminal 321 and a second positive terminal 322.

In the embodiment of the present invention, the positive terminal and the negative terminal are located on the same side of the speaker unit, and the power supply line 2 is located on the same side of at least two speaker units. In the embodiment shown in fig. 1 to 5, the first negative terminal 311 and the first positive terminal 312 are located on the same side of the first speaker unit 31, the second negative terminal 321 and the second positive terminal 322 are located on the same side of the second speaker unit 32, and the first cable 21 and the second cable 22 are located on the same side of the first speaker unit 31 and the second speaker unit 32.

The first cable wire 21 and the second cable wire 22 each include a conductive wire, an insulator wrapping the conductive wire, and a stripping portion removing the insulator to expose the conductive wire, wherein an end portion of the conductive wire is not wrapped by the insulator, and the stripping portion is spaced apart from the end portion of the conductive wire.

In the embodiment of the present invention, the end of the conducting wire of the first cable wire 21 and the end of the conducting wire of the second cable wire are respectively welded to the negative terminal and the positive terminal of the same speaker cell, and the stripping part of the first cable wire and the stripping part of the second cable wire are welded to the negative terminal and the positive terminal of other speaker cells; the end of the wire of the first cable wire is welded at the negative end of the first loudspeaker, and the end of the wire of the second cable wire is welded at the positive end of the first loudspeaker.

In the embodiment shown in fig. 1 to 5, the first lead end portion 211 of the first cable wire 21 is welded to the first negative terminal 311 of the first speaker unit 31, and the first stripped portion 212 of the first cable wire 21 is welded to the second negative terminal 321 of the second speaker unit 32.

The second wire end 221 of the second cable wire 22 is welded to the first positive end 312 of the first speaker cell 31, and the second stripped portion 222 of the second cable wire 22 is welded to the second positive end 322 of the second speaker cell 32. In the embodiment of the present invention, the first cable wire 21 and the second cable wire 22 are combined together by the heat shrinkable tube 23 and fixed inside the case, thereby reducing the volume occupied in the rear cavity.

In an embodiment of the present invention, the headset further includes a main body portion and two support arms formed by the housing, the two support arms are located at two ends of the main body portion, and at least one of the support arms is provided with at least two speaker units. In a specific application, according to actual requirements, the required speaker units are respectively disposed in one support arm or two support arms, and the specific number is not limited herein.

In the embodiment of the invention, the loudspeaker monomer comprises a shell, a vibration system and a magnetic circuit system, wherein the vibration system and the magnetic circuit system are fixed with the shell, the vibration system comprises a vibrating diaphragm, a voice coil fixed on one side of the vibrating diaphragm and a ball top fixed at the center of the vibrating diaphragm; the voice coil and the top of the ball are fixed on the same side of the vibrating diaphragm or fixed on two sides of the vibrating diaphragm respectively; the vibrating diaphragm comprises a central area fixed with the top of the ball and a folded ring part arranged on the edge of the central area, and the folded ring part is of a convex or concave structure.

The magnetic circuit system comprises a central magnetic circuit, a side magnetic circuit arranged at the periphery of the central magnetic circuit and a magnetic yoke fixed with the central magnetic circuit and the side magnetic circuit, wherein the magnetic yoke is fixed with the shell; and a magnetic gap is arranged between the central magnetic circuit and the side magnetic circuit, and the voice coil is inserted into the magnetic gap and sleeved outside the central magnetic circuit. The central magnetic circuit comprises a central magnet and a central magnetic conduction plate, and the side magnetic circuit comprises a side magnet and a side magnetic conduction plate; one end of each of the central magnet and the edge magnet is fixed with the magnetic yoke, and the other end of each of the central magnet and the edge magnet is fixed with the central magnetic conductive plate and the edge magnet plate.

In the embodiment of the present invention, the specific structure of the speaker unit is set according to the application, and is not limited to the above-mentioned limitation of the structure of the speaker unit; wherein the pad of each speaker cell is disposed on the housing.

According to the head-mounted equipment provided by the embodiment of the invention, the two loudspeaker monomers in the shell are connected in parallel through the two cables, so that the number of connecting wires is reduced, the volume in the back cavity is increased due to the reduction of the number of the wiring harnesses, the reliability of line connection is improved, and the error rate of wiring harness connection is reduced. Two cables are used in combination, the automatic feeding is realized more simply, fool-proofing is not needed, the manufacturing process cost is reduced, meanwhile, the number of wire harnesses is reduced, the number of corresponding plugs and connectors is reduced, and the material cost is also reduced.

The head mounted device proposed according to the invention is described above by way of example with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that various modifications may be made to the headgear proposed by the present invention described above without departing from the scope of the invention. Accordingly, the scope of the invention should be determined from the content of the appended claims.

Claims

1. A head-mounted device comprises a shell and at least two loudspeaker single bodies contained in the shell, and is characterized in that,

2. The headset of claim 1,

the shell comprises an upper shell and a lower shell, and the upper shell is internally provided with a containing groove for containing the loudspeaker monomer.

3. The headset of claim 1,

the first cable and the second cable are combined together through a heat-shrinkable tube and are fixed in the shell.

4. The headset of claim 1,

the first cable wire and the second cable wire each include a conductive wire, an insulator wrapping the conductive wire, and a peeling portion removing the insulator to expose the conductive wire,

5. The headset of claim 4,

the tip of the wire of first cable conductor, the tip of the wire of second cable conductor welds respectively in the free negative pole end of same speaker and positive terminal, the portion that strips of first cable conductor the portion that strips of second cable conductor welds in the free negative pole end of other speakers and positive terminal.

6. The headset of claim 1,

the positive terminal and the negative terminal are located on the same side of the speaker units, and the power line is located on the same side of at least two speaker units.

7. The headset of claim 4,

the loudspeaker units are two in number and comprise a first loudspeaker unit and a second loudspeaker unit, wherein,

the end part of the conducting wire of the first cable wire is welded at the negative end of the first loudspeaker single body, and the end part of the conducting wire of the second cable wire is welded at the positive end of the first loudspeaker single body;

8. The headset of claim 1,

the head-mounted equipment further comprises a main body part and two supporting arms formed by the shell, the two supporting arms are positioned at two ends of the main body part, and at least two loudspeaker units are arranged in at least one supporting arm.

9. The headset of claim 1,

the loudspeaker monomer comprises a shell, and a vibration system and a magnetic circuit system which are fixed with the shell, wherein,

10. The headset of claim 9,

the magnetic circuit system comprises a central magnetic circuit, a side magnetic circuit arranged at the periphery of the central magnetic circuit and a magnetic yoke fixed with the central magnetic circuit and the side magnetic circuit, wherein the magnetic yoke is fixed with the shell;