CN219122509U - Head-mounted display device - Google Patents

Abstract

The utility model provides a head-mounted display device, which comprises a main board, a loudspeaker and two side connecting bands, wherein the main board is electrically connected with the loudspeaker; when the belt is worn, the two side connecting belts are symmetrically distributed on the left side and the right side of the head of a wearer; the sound production assembly further comprises a framework and an outer decorative cover, wherein the framework is provided with inward protruding protrusions and containing grooves with the protrusions as walls, the outer decorative cover is buckled on the outer sides of the framework to form containing cavities at the containing grooves, the loudspeaker is located in the containing cavities, and the protrusions are provided with sound through holes to allow sound emitted by the loudspeaker to be released from the containing cavities. The volume of holding the chamber is big, can promote wear-type display device's low frequency tone quality.

Description

Head-mounted display device

Technical Field

The embodiment of the application relates to the technical field of virtual reality equipment, in particular to head-mounted display equipment.

Background

The "Virtual Reality" is from the english "Virtual Reality", abbreviated VR technology. The virtual reality technology (VI) is a comprehensive technology integrating computer technology, sensor technology, human psychology and physiology, and is characterized in that a computer simulation system is utilized to simulate the external environment, and mainly simulate objects such as environment, skill, sensing equipment and perception, and the like, so as to provide multi-information, three-dimensional dynamic and interactive simulation experience for users.

VR head display is to use a head-mounted display device to close the vision and hearing of a person to the outside, and guide the user to generate a feeling of being in a virtual environment. The display principle is that the left and right eye screens respectively display left and right eye images, and human eyes can generate stereoscopic impression in the brain after acquiring the information with the difference. As an important access medium for virtual reality, it plays an important role in virtual reality and mixed reality technologies.

In the prior art, an audio system of a head-mounted display device comprises a loudspeaker (i.e. a loudspeaker), a containing cavity is arranged on a typical hard headband, the containing cavity is close to the ear of a user when the user wears the head-mounted display device, reticulate pattern dustproof holes are formed in the side surfaces of the containing cavity, and sound emitted by the head-mounted display device is amplified through the loudspeaker and then transmitted to the ear of the user through the dustproof holes.

However, the conventional structure can only make a speaker emit sound, but the sound quality is low.

Disclosure of Invention

Embodiments of the present application provide a head-mounted display device to at least partially solve the above-described problems.

According to an embodiment of the application, there is provided a head-mounted display device, including a front end assembly, a back end assembly, a motherboard, a speaker, and two side connection straps connected between the front end assembly and the back end assembly; the main board is positioned in the front end component or the rear end component and is electrically connected with the loudspeaker; when the head is worn, the front end component is positioned at the front part of the head of a wearer, the rear end component is positioned at the rear part of the head of the wearer, and the two side connecting belts are symmetrically distributed at the left side and the right side of the head of the wearer; the sound generating assembly further comprises a framework and an outer decorative cover, wherein the framework is provided with inward protruding portions and containing grooves taking the protruding portions as walls, the outer decorative cover is buckled on the outer sides of the framework to form containing cavities at the containing grooves, the loudspeaker is located in the containing cavities, and the protruding portions are provided with sound passing through holes to allow sound emitted by the loudspeaker to be released from the containing cavities.

Optionally, the volume of the accommodating cavity is 3000 cubic millimeters.

Optionally, the length of the accommodating cavity is 102mm, the width is 20mm, and the thickness is 3mm.

Optionally, the wall thickness of the convex part is 1.5mm-2.0mm.

Optionally, the protrusion is located in front of the wearer's ear when worn.

Optionally, the side connecting band further includes a bracket, the bracket is located in the accommodating cavity and fixed on the skeleton, the speaker is mounted on the bracket, and a horn mouth of the speaker is located in the accommodating groove and faces the protruding portion.

Optionally, the connecting belt further comprises a fastener, wherein the front end and the rear end of the bracket are respectively provided with a connecting hole, and the fastener penetrates through the connecting holes and then is connected with the framework.

Optionally, the bracket has a mounting through hole, and the speaker is shape-fittingly clamped in the mounting through hole.

Optionally, the head-mounted display device further includes a front end assembly, a back end assembly, and an electric wire connected between the main board and the speaker, the side connection strap being connected between the front end assembly and the back end assembly, the front end assembly being located in front of the head of the wearer and the back end assembly being located in back of the head of the wearer when worn; the inner decorative cover further comprises a front connecting part and a rear connecting part which are positioned on the front side and the rear side of the convex part, a front accommodating channel is formed between the front connecting part and the outer decorative cover, and the rear connecting part is in sealing connection with the outer decorative cover; the main board is positioned in the front end assembly, the electric wires are positioned in the front accommodating channel, a plurality of pairs of convex columns are arranged on the inner surface of the inner decorative cover, and the electric wires are clamped in gaps between two convex columns in each pair of convex columns.

Optionally, the connecting band further comprises a dust screen, the dust screen is adhered to the inner surface of the protruding portion, and the dust screen covers the sound passing through hole.

Optionally, the head-mounted display device further includes a power amplifier, the power amplifier is electrically connected with the main board and the speaker respectively, and an electrical signal sent by the main board is transmitted to the speaker through the power amplifier.

The beneficial effects are that:

by adopting the technical scheme, because the convex part of skeleton is inboard towards, and the holding tank corresponds with the convex part, then, when the outside of skeleton is covered to the exterior trim, the exterior trim is covered and is enclosed jointly with the holding tank and has been formed the holding chamber, the holding tank is for holding the part in chamber, the thickness of holding the chamber is greater than the thickness of side connecting band, such holding chamber has great volume, because the speaker is arranged in this holding chamber, in a certain extent, the law that the bigger low frequency tone quality of holding chamber is better, consequently, the speaker is arranged in such holding chamber that has great volume back, can promote wear-type display device's low frequency tone quality.

Drawings

The following drawings are only for purposes of illustration and explanation of the present application and are not intended to limit the scope of the present application. Wherein,,

fig. 1 is a schematic diagram of wearing a head-mounted display device according to an embodiment of the present application

Fig. 2 is a schematic diagram of a head-mounted display device according to an embodiment of the present application.

Fig. 3 is another perspective view of a side connection strap of a head-mounted display device according to an embodiment of the present application, in which a side cover is omitted.

Fig. 4 is a perspective view of a side connection strap of a head-mounted display device according to an embodiment of the present application.

Fig. 5 is an exploded schematic view of an exterior cover, an interior cover, and a bracket in a head-mounted display device according to an embodiment of the present application.

Fig. 6 is a schematic diagram of a motherboard, a power amplifier, and a speaker in a head-mounted display device according to an embodiment of the present application.

Reference numerals illustrate:

10-front end assembly, 20-back end assembly, 30-speaker;

40-an inner decorative cover, 41-a convex part, 410-a sound passing through hole, 42-a front connecting part, 43-a rear connecting part and 44-a convex column;

50-an outer decorative cover; 60-bracket, 61-connecting hole; 70-wire.

Detailed Description

For a clearer understanding of technical features, objects, and effects of embodiments of the present application, a specific implementation of embodiments of the present application will be described with reference to the accompanying drawings.

In this document, "schematic" means "serving as an example, instance, or illustration," and any illustrations, embodiments described herein as "schematic" should not be construed as a more preferred or advantageous solution.

For simplicity of the drawing, only the parts relevant to the present application are schematically shown in each drawing, and they do not represent the actual structure thereof as a product. In addition, for simplicity and ease of understanding, components having the same structure or function in some of the figures are shown only schematically or only one or more of them are labeled.

In order to solve the problems set forth in the background art, the present application provides a head-mounted display device, referring to fig. 1 to 3, including a main board, a speaker 30, and two side connection bands, the main board being electrically connected to the speaker 30; when the belt is worn, the two side connecting belts are symmetrically distributed on the left side and the right side of the head of a wearer; wherein, sound generating components are oppositely arranged on the positions, close to the front ends, of the two side connecting bands respectively, the sound generating components further comprise an inner decorative cover 40 and an outer decorative cover 50, the inner decorative cover 40 is provided with a convex part 41 protruding inwards and a containing groove taking the convex part 41 as a wall, the outer decorative cover 50 is buckled on the outer side of the inner decorative cover 40 to form a containing cavity at the containing groove, the loudspeaker 30 is positioned in the containing cavity, and the convex part 41 is provided with a sound passing through hole 410 to allow sound emitted by the loudspeaker 30 to be released from the containing cavity. That is, the sounding components on the two side connecting bands are symmetrically distributed, and the sounding components are positioned on the left side and the right side of the head of the wearer when the wearer wears the device. The speaker 30 is installed in the sound generating assembly, and sound generated from the speaker 30 is released from the through-sound hole 410 of the sound generating assembly.

It should be noted that, in the present application, "inner and outer" refers to the whole head-mounted display device, and the interior cover 40 is located inside the exterior cover 50; the protruding portion 41 is located on the side of the interior cover 40 facing away from the exterior cover 50, i.e., the protruding portion 41 protrudes toward the inside of the head-mounted display device. The front and back of the present application are defined by the front and back of the head of the wearer when the head-mounted display device is worn on the head, and the head-mounted display device further includes a front end assembly 10 and a back end assembly 20, the front end assembly 10 is connected to the front end of the side connecting band, the back end assembly 20 is connected to the back end of the side connecting band, and the sound generating assembly is close to the front end assembly 10.

With the above-described solution, the side connection strap is positioned near the ear of the wearer, the main board can emit an electrical signal to the speaker 30, and the speaker 30 can convert the electrical signal into an acoustic signal, thereby emitting sound, which can pass through the through-hole 410 on the protruding portion 41 and propagate toward the inside of the head-mounted display device, and then the sound can be transmitted into the ear of the wearer. The "motherboard" in the present application may be understood as a circuit board, a controller or a central processor of the head-mounted display device, and the motherboard may be capable of transmitting corresponding electrical signals to the speaker 30 when sound is required.

Since the protruding portion 41 of the interior cover 40 faces inward and the accommodating groove corresponds to the protruding portion 41, when the exterior cover 50 is fastened to the outer side of the interior cover 40, the exterior cover 50 and the accommodating groove enclose an accommodating cavity together, the accommodating groove is a part of the accommodating cavity, the thickness of the accommodating cavity is larger than that of the side connecting band, the accommodating cavity has a larger volume, and since the speaker 30 is located in the accommodating cavity, the speaker 30 is located in the accommodating cavity with a larger volume according to a law that the lower frequency sound quality is better, and therefore, the lower frequency sound quality of the head-mounted display device can be improved after the speaker 30 is located in the accommodating cavity with a larger volume.

Alternatively, the volume of the receiving chamber may be 3000 cubic millimeters.

Alternatively, the receiving cavity may be 102mm in length, 20mm in width, and 3mm in thickness.

Alternatively, the wall thickness of the convex portion 41 may be 1.5mm to 2.0mm. On the premise of ensuring the structural strength, the volume of the accommodating groove is increased as much as possible, and the volume of the accommodating cavity is also increased. The wall thickness of the convex portion 41 may be 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm or 2.0mm.

In one possible embodiment, referring to fig. 2, when worn, the protrusion 41 is positioned in front of the wearer's ear. In this way, the convex portion 41 can be prevented from pressing against the ear. When worn, the ears correspond to the rear connection portions 43 of the side connection straps.

In one possible embodiment, referring to fig. 3, the side connection strap further includes a bracket 60, the bracket 60 being located in the receiving cavity and fixed to the interior cover 40, the speaker 30 being mounted on the bracket 60, the horn mouth of the speaker 30 being located in the receiving groove and facing the boss 41. The sound emitted from the speaker 30 is directly entered into the channel receiving groove and released through the through hole of the boss 41. The bracket 60 may function to fix the position of the speaker 30.

Optionally, the connecting band further includes a fastener, and the front end and the rear end of the bracket 60 are provided with connecting holes 61, and the fastener is connected to the interior cover 40 after passing through the connecting holes 61. That is, the bracket 60 is fixed at the receiving groove of the interior cover 40 by the fastener. The bracket 60 may be located in the receiving groove or at the notch of the receiving groove to facilitate the fixation of the speaker 30 in the receiving cavity.

Optionally, the bracket 60 has a mounting through hole in which the speaker 30 is form-fittingly snapped. In this way, the speaker 30 can be conveniently and firmly fixed to the bracket 60, and the horn mouth of the speaker 30 can be positioned in the space between the bracket 60 and the convex portion 41, that is, in the receiving groove, and the back of the speaker 30 is positioned between the bracket 60 and the exterior cover 50. Specifically, the speaker 30 may be an electric cone-shaped basin speaker 30, including a driving unit, a frame and a cone-shaped basin, where the driving unit and the cone-shaped basin are respectively mounted on two sides of the frame, the cone-shaped basin is a bell mouth, the driving unit is located between the support 60 and the outer decorative cover 50, and is connected with the main board through a conductive wire located in the front accommodation channel or the rear accommodation channel, the frame is shape-adaptively clamped in the mounting through hole, and the frame includes a connection flange, and the connection flange is fixedly connected with the support 60.

In one possible embodiment, referring to fig. 4 and 5, the head-mounted display device includes not only the front end assembly 10, the rear end assembly 20, but also the electric wire 70 connected between the main board and the speaker 30, the side connection strap being connected between the front end assembly 10 and the rear end assembly 20, the front end assembly 10 being positioned in front of the wearer's head and the rear end assembly 20 being positioned in back of the wearer's head when worn; the interior cover 40 further includes a front connection part 42 and a rear connection part 43 at the front and rear sides of the protrusion 41, a front receiving channel is formed between the front connection part 42 and the exterior cover 50, and the rear connection part 43 and the exterior cover 50 are hermetically connected, so that one side of the receiving cavity close to the rear connection part 43 can be closed; the main board is located in the front end assembly 10, the head mounted display device further comprises an electric wire 70 connected between the main board and the speaker 30, the electric wire 70 is located in the front receiving channel, a plurality of pairs of posts 44 are provided on the inner surface of the interior cover 40, and the electric wire 70 is caught in a gap between two posts 44 of each pair of posts 44. As such, the front end assembly 10 is for presenting a virtual reality image to the eye of a wearer, and the back end assembly 20 is located in the back of the wearer's brain, on which an adjustment structure may be mounted to adjust the length of the side straps. The wires 70 may transmit electrical signals of the motherboard to the speaker 30.

The front accommodating channel and the accommodating cavity can be communicated, or fittings such as a sealing gasket can be used for sealing and separating the front accommodating channel from the accommodating cavity, so that the volume released by the loudspeaker 30 is only in the accommodating cavity, and enough volume is ensured to be released from the sound passing through hole 410, and meanwhile, higher low-frequency sound quality can be achieved; at this time, since the electric wire 70 enters the accommodating chamber from the front accommodating passage, the electric wire 70 can be closely attached to the gasket, thereby achieving the purpose of hermetically separating the front accommodating passage from the accommodating chamber.

Wherein the thickness of the side connection strap is smaller at the front connection portion 42 and the exterior cover 50, and is larger at the receiving chamber. The connection between the convex portion 41 and the front connection portion 42 has a chamfer, and the connection between the convex portion 41 and the rear connection portion 43 has a chamfer, in other words, the transitional connection structures between the convex portion 41 and the front connection portion 42 and between the convex portion 41 and the rear connection portion 43 are sloping plates.

In one possible embodiment, the connection strap further includes a dust screen adhered to the inner surface of the convex portion 41, the dust screen covering the through-sound hole 410. The dust screen has a smaller diameter dust hole, so that external impurities can be prevented from entering the accommodating cavity from the through hole 410, the loudspeaker 30 in the accommodating cavity is protected, and sound emitted by the loudspeaker 30 can be transmitted from the dust hole of the dust screen.

In one possible embodiment, referring to fig. 6, the speaker system further includes a power amplifier, wherein the power amplifier is electrically connected to the main board and the speaker 30, respectively, and an electrical signal emitted from the main board is transmitted to the speaker 30 through the power amplifier. As in fig. 6, the operational relationship between the motherboard, the power amplifier, and the speaker 30 is shown.

The main board parses audio files in the game or video to obtain electrical signals, and the electrical signals have low power, i.e. the ability to drive the speaker 30 to sound is low, so a power amplifier is required. The power amplifier is used for amplifying the electric signal emitted by the main board to increase the driving capability of the electric signal, namely, the power amplifier is directly connected with the loudspeaker 30, the received electric signal is amplified and then output to the loudspeaker 30, and the loudspeaker 30 can emit sound.

The variety of the power amplifier and the speaker 30 is varied, and the combination is varied, so that the power amplifier needs to be optimized for the speaker 30 to ensure excellent operation after the combination of the two. Specifically, even if the same electric signal is emitted from the main board, the electric signal is outputted to the speaker 30 after passing through the power amplifier, and the different speakers 30 have different parameters such as dc impedance and parasitic inductance, so that the sound effect is different. To ensure that the sound obtained at the loudspeaker 30 is the same, the parameters of the power amplifier are artificially changed, and an additional signal is added to the original electrical signal, which is the tuning.

The foregoing is illustrative of the embodiments of the present application and is not to be construed as limiting the scope of the embodiments of the present application. Any equivalent alterations, modifications and combinations thereof will be effected by those skilled in the art without departing from the spirit and principles of the embodiments of this application, and it is intended to be within the scope of the embodiments of this application.

It should be understood that although the present disclosure has been described in terms of various embodiments, not every embodiment is provided with a separate technical solution, and this description is for clarity only, and those skilled in the art should consider the disclosure as a whole, and the technical solutions in the various embodiments may be combined appropriately to form other embodiments that will be understood by those skilled in the art. It should be understood that although the present disclosure has been described in terms of various embodiments, not every embodiment is provided with a separate technical solution, and this description is for clarity only, and those skilled in the art should consider the disclosure as a whole, and the technical solutions in the various embodiments may be combined appropriately to form other embodiments that will be understood by those skilled in the art.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises an element.

Claims (10)

1. A head-mounted display device is characterized by comprising a main board, a loudspeaker (30) and two side connecting belts,

the main board is electrically connected with the loudspeaker (30);

when the belt is worn, the two side connecting belts are symmetrically distributed on the left side and the right side of the head of a wearer; wherein,,

the sound production assembly comprises an inner decorative cover (40) and an outer decorative cover (50), wherein the inner decorative cover (40) is provided with an inward protruding portion (41) and a containing groove taking the protruding portion (41) as a wall, the outer decorative cover (50) is buckled on the outer side of the inner decorative cover (40) so as to form a containing cavity at the containing groove, the loudspeaker (30) is located in the containing cavity, and the protruding portion (41) is provided with a sound passing through hole (410) so as to allow sound emitted by the loudspeaker (30) to be released from the containing cavity.

2. The head mounted display device of claim 1, wherein the volume of the receiving cavity is 3000 cubic millimeters.

3. The head mounted display device of claim 1, wherein the receiving cavity has a length of 102mm, a width of 20mm, and a thickness of 3mm.

4. Head mounted display device according to claim 1, characterized in that the wall thickness of the protrusion (41) is 1.5mm-2.0mm.

5. The head mounted display device according to claim 1, wherein the protrusion (41) is located in front of the wearer's ear when worn.

6. The head mounted display device according to claim 1, wherein the side connection strap further comprises a bracket (60), the bracket (60) being located in the receiving cavity and fixed on the interior cover (40), the speaker (30) being mounted on the bracket (60), the horn mouth of the speaker (30) being located in the receiving groove and facing the protruding portion (41).

7. The head mounted display device according to claim 6, wherein the side connection strap further comprises a fastener, and the front and rear ends of the bracket (60) are provided with connection holes (61), and the fastener is connected to the interior cover (40) after passing through the connection holes (61).

8. The head mounted display device according to claim 6, wherein the stand (60) has a mounting through hole in which the speaker (30) is shape-fittingly snapped.

9. The head mounted display device according to claim 1, further comprising a front end assembly (10), a back end assembly (20), and an electrical cord (70) connected between the main board and the speaker (30), the side connection strap being connected between the front end assembly (10) and the back end assembly (20), the front end assembly (10) being located in front of the wearer's head and the back end assembly (20) being located behind the wearer's head when worn;

the inner decorative cover (40) further comprises a front connecting part (42) and a rear connecting part (43) which are positioned at the front side and the rear side of the convex part (41), a front accommodating channel is formed between the front connecting part (42) and the outer decorative cover (50), and the rear connecting part (43) is in sealing connection with the outer decorative cover (50);

the main board is located in the front end assembly (10), the electric wires (70) are located in the front accommodating channel, a plurality of pairs of protruding columns (44) are arranged on the inner surface of the inner decorative cover (40), the electric wires (70) are clamped in gaps between two of the protruding columns (44) in each pair of protruding columns (44), the connecting band further comprises a dust screen, the dust screen is adhered to the inner surface of the protruding portion (41), and the dust screen covers the sound passing through holes (410).

10. The head mounted display device according to claim 1, further comprising a power amplifier electrically connected to the main board and the speaker (30), respectively, wherein an electrical signal emitted from the main board is transmitted to the speaker (30) via the power amplifier.

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