Headgear strap assembly, headgear

Abstract

This invention discloses a strap assembly for a head-mounted device and a head-mounted device. The strap assembly includes: a fixed housing; a strap shell rotatably disposed within the fixed housing; and a speaker disposed within the strap shell. The speaker and the strap shell define a front sound cavity and a rear sound cavity arranged separately. The strap shell has a sound outlet communicating with the front sound cavity. According to the embodiment of the head-mounted device of this invention, the speaker is integrated into the strap shell, which not only reduces the size of the display module of the head-mounted device but also reduces the distance between the speaker and the sound outlet, thus helping to ensure the sound quality of the head-mounted device and improving the user experience.

Description

Technical Field

[0001] This invention relates to the field of head-mounted device technology, and in particular to a head-mounted device strap assembly and a head-mounted device. Background Technology

[0002] In existing wearable devices, the speaker is usually placed in a fixed middle shell, and then the sound is transmitted to the user's ear through a sound tube. However, the sound quality degrades as the sound is transmitted through the sound tube, so there is a need for improvement. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of the present invention is to provide a head-mounted device strap assembly that eliminates the need for a sound guide tube to transmit sound, thereby ensuring the sound quality of the head-mounted device and improving the user experience.

[0004] The present invention also proposes a head-mounted device having the above-described strap assembly.

[0005] According to a first aspect of the present invention, a headband assembly for a head-mounted device includes: a fixing shell having a concave arc surface; a strap shell rotatably disposed on the fixing shell, the strap shell having a convex arc surface that slides with the concave arc surface; and a speaker disposed within the strap shell, the speaker and the strap shell defining a front acoustic cavity and a rear acoustic cavity arranged separately, the strap shell having a sound outlet communicating with the front acoustic cavity.

[0006] According to the present invention, the headband assembly of the head-mounted device integrates the speaker into the headband housing, which reduces the size of the head-mounted device's display module compared to the related art where the speaker is placed in the display module of the head-mounted device. Compared to the related art where the speaker is placed in a fixed housing, placing the speaker in the headband housing reduces the distance between the speaker and the sound outlet, which helps to ensure the sound quality of the head-mounted device and thus improves the user experience.

[0007] According to some embodiments of the present invention, the strap shell and the fixing shell are sleeved together, and the inner peripheral wall of the fixing shell and the outer peripheral wall of the strap shell are sealed together by a sealing element.

[0008] In some embodiments, the peripheral wall of the strap shell has a vent hole communicating with the rear acoustic cavity, and the fixing shell defines an airflow channel communicating with the outside, the airflow channel communicating with the vent hole.

[0009] In some examples, the air passage has an air vent formed on the inner peripheral wall of the fixed housing, and the sealing element includes a first sealing ring and a second sealing ring, which are sleeved on the peripheral wall of the strap housing and located on both sides of the air vent in the extension direction of the rotation axis of the strap housing.

[0010] In some examples, the vents include a plurality of vents, which are arranged at intervals in the circumferential direction of the peripheral wall of the strap shell, and the distance between two adjacent vents in the circumferential direction of the strap shell is smaller than the size of the air passage of the airflow channel in the circumferential direction of the strap shell.

[0011] In some examples, the mounting housing includes: a mounting base; a mounting cover, the mounting cover being disposed at one end of the mounting base and defining an installation cavity with the mounting base; and a cover body, the cover body being disposed within the installation cavity, the cover body defining the airflow channel between itself and the mounting base or the cover body itself.

[0012] In some specific examples, the other end of the fixing seat defines a fixing cavity, a portion of the strap shell is inserted into the fixing cavity, and the air passage of the airflow channel extends from the inner peripheral wall of the fixing seat to the top wall of the fixing seat.

[0013] In some specific examples, the cover has an air outlet communicating with the airflow channel.

[0014] In some examples, the strap housing includes: a connector, on which the speaker is disposed; and a connector cover, which covers the connector, defining the front acoustic cavity between the connector cover, the connector, and the speaker, and defining the rear acoustic cavity between the connector and the speaker.

[0015] In some specific examples, the connector has a sound outlet channel that connects the sound outlet hole and the front sound cavity.

[0016] In some specific examples, the sound outlet extends obliquely away from the speaker to the side of the connector opposite to the connector cover.

[0017] In some specific examples, the strap shell also includes a fastener that cooperates with the connecting seat and the connecting cover, and the fastener and the fixed shell or the fastener itself define the sound outlet.

[0018] In some specific examples, a wiring cavity for accommodating a wire harness is defined between the peripheral wall of the connecting cover, the peripheral wall of the connecting seat, and the fixing shell, the wire harness being adapted to be arranged side-by-side along the height direction of the connecting seat.

[0019] A head-mounted device according to a second aspect of the present invention includes a strap assembly for a head-mounted device as described in the above embodiments.

[0020] According to the embodiments of the present invention, by adopting the above-mentioned strap assembly, the size of the display module of the head-mounted device can be reduced, and the distance between the speaker and the sound outlet can be reduced, which helps to ensure the sound quality of the head-mounted device and thus improve the user experience.

[0021] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is an exploded view of the structure of the strap assembly of the head-mounted device according to an embodiment of the present invention;

[0024] Figure 2 This is a cross-sectional view of the strap assembly of a head-mounted device according to an embodiment of the present invention in one direction;

[0025] Figure 3 yes Figure 2 An enlarged view of part A shown in the image;

[0026] Figure 4 yes Figure 2 The diagram shows the structure of the fixed shell.

[0027] Figure 5 yes Figure 2 The diagram shows the assembly of the strap housing and the speaker.

[0028] Figure 6 This is a cross-sectional view of the strap assembly of the head-mounted device according to an embodiment of the present invention in another direction;

[0029] Figure 7 yes Figure 6 The diagram shows an assembly of the head-mounted device's strap assembly and wiring harness.

[0030] Figure label:

[0031] Strap assembly 100,

[0032] Fixed shell 10, air vent 101, air outlet 102, mounting cavity 103, airflow channel 104, fixed base 11, locking protrusion 111, guide surface 112, fixed cavity 113, fixed cover 12, concave arc surface 121, cover body 13.

[0033] Strap cover 20, vent 201, slot 202, sound outlet channel 203, wiring cavity 204, connector 21, connector cover 22, convex arc surface 221, fixing piece 23, sound outlet 231.

[0034] Speaker 30, front sound cavity 301, rear sound cavity 302.

[0035] Seal 40, first sealing ring 41, second sealing ring 42.

[0036] Wiring harness 50. Detailed Implementation

[0037] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0038] The following is for reference. Figures 1-7 A strap assembly 100 for a head-mounted device according to an embodiment of the present invention is described.

[0039] like Figure 1 As shown, the headband assembly 100 of the head-mounted device according to an embodiment of the present invention includes a fixing shell 10, a strap shell 20, and a speaker 30.

[0040] Reference Figures 1-5 The fixed shell 10 has a concave arc surface 121, and the strap shell 20 is rotatably disposed on the fixed shell 10, that is, the strap shell 20 can rotate relative to the fixed shell 10. The strap shell 20 has a convex arc surface 221. When the strap shell 20 rotates relative to the fixed shell 10, the convex arc surface 221 and the concave arc surface 121 slide together, which not only ensures the compactness of the structure, but also forms an effective avoidance to prevent interference between the two.

[0041] Furthermore, the speaker 30 is disposed inside the strap shell 20, and the speaker 30 and the strap shell 20 define a front sound cavity 301 and a rear sound cavity 302 that are arranged separately. The strap shell 20 has a sound outlet 231 that communicates with the front sound cavity 301.

[0042] According to the embodiments of the present invention, the head-mounted device strap assembly 100 integrates the speaker 30 onto the strap shell 20, which reduces the size of the head-mounted device's display module compared to the related art where the speaker 30 is disposed in the display module of the head-mounted device. Compared to the related art where the speaker 30 is disposed within the fixed shell 10, the distance between the speaker 30 and the sound outlet 231 is reduced by disposing the speaker 30 within the strap shell 20, which helps to ensure the sound quality of the head-mounted device and thus improves the user experience.

[0043] like Figure 2 and Figure 3 As shown, according to some embodiments of the present invention, the strap shell 20 and the fixing shell 10 are sleeved together, so that the strap shell 20 can rotate relative to the fixing shell 10. For example, the strap shell 20 can be sleeved on the outside of the fixing shell 10, or the fixing shell 10 can be sleeved on the outside of the strap shell 20.

[0044] In some embodiments, the inner peripheral wall of the fixing shell 10 and the outer peripheral wall of the strap shell 20 are sealed together by a sealing member 40, that is, at least a portion of the fixing shell 10 is fitted onto the outer side of the strap shell 20.

[0045] Therefore, by providing a seal 40 between the inner peripheral wall of the fixed shell 10 and the outer peripheral wall of the strap shell 20, the seal 40 can provide damping force when the strap shell 20 rotates relative to the fixed shell 10, so that the strap shell 20 can be suspended at any position, which is beneficial for adjusting the position of the strap assembly 100 relative to the main unit of the head-mounted device.

[0046] In some embodiments, the peripheral wall of the strap shell 20 has a vent 201 that communicates with the rear acoustic cavity 302. The fixing shell 10 defines an airflow channel 104 that communicates with the outside world and is also connected to the vent 201, thereby connecting the rear acoustic cavity 302 with the airflow channel 104. By providing the airflow channel 104, the rear acoustic cavity 302 can be connected to the outside world, thereby further ensuring the sound quality of the speaker 30.

[0047] like Figure 2 and Figure 3 As shown, in some examples, the air passage 104 has an air vent 101 formed on the inner peripheral wall of the fixed shell 10. The sealing element 40 includes a first sealing ring 41 and a second sealing ring 42. The first sealing ring 41 and the second sealing ring 42 are sleeved on the peripheral wall of the strap shell 20, and the first sealing ring 41 and the second sealing ring 42 are arranged at intervals in the extension direction of the rotation axis of the strap shell 20. The first sealing ring 41 and the second sealing ring 42 are respectively located on both sides of the air vent 201 in the extension direction of the rotation axis of the strap shell 20.

[0048] With the strap shell 20 installed on the fixed shell 10, at least a portion of the vent hole 201 is aligned with the vent hole 101 of the airflow channel 104, thereby connecting the vent hole 101 of the airflow channel 104 with the vent hole 201. Furthermore, the first sealing ring 41 and the second sealing ring 42 are located on both sides of the vent hole 201, that is, the first sealing ring 41 and the second sealing ring 42 are located on both sides of the vent hole 101, thereby ensuring the airtightness between the airflow channel 104 and the rear acoustic cavity 302, preventing air leakage, and thus ensuring the sound quality of the speaker 30.

[0049] The first sealing ring 41 and the second sealing ring 42 can be made of silicone material.

[0050] In some examples, there are multiple vents 201, which are spaced apart along the circumferential wall of the strap shell 20. The distance between two adjacent vents 201 in the circumferential direction of the strap shell 20 is smaller than the size of the vent 101 of the airflow channel 104 in the circumferential direction of the strap shell 20.

[0051] In this way, when the user uses the head-mounted device and adjusts the strap, the air passage 104 can connect with at least one vent 201 when the strap shell 20 is rotated to any position relative to the fixed shell 10, ensuring that the speaker 30 can output sound normally, thereby ensuring the user's experience.

[0052] To ensure that the speaker 30 can produce sound normally, the air passage 101 and the vent 201 of the airflow channel 104 can be respectively formed as arc-shaped holes extending circumferentially along the strap shell 20, and the extension length of the air passage 101 of the airflow channel 104 is greater than the distance between any two adjacent vents 201, which is simple in structure and easy to implement.

[0053] In some examples, the mounting housing 10 includes a mounting base 11, a mounting cover 12, and a cover 13. The mounting cover 12 covers one end of the mounting base 11, and the mounting cover 12 and the mounting base 11 define a mounting cavity 103. The cover 13 is disposed in the mounting cavity 103, and an airflow channel 104 is defined between the cover 13 and the mounting base 11. Alternatively, the cover 13 itself defines the airflow channel 104.

[0054] Specifically, such as Figure 4 and Figure 6 As shown, in this example, the fixing base 11 extends in the front-rear direction and includes a portion located on the front side and another portion located on the rear side. The fixing cover 12 covers the front part of the fixing base 11 and defines a mounting cavity 103 with a front opening between the fixing cover 12 and the fixing base 11. The cover 13 is disposed above the front part of the fixing base 11 and defines an airflow channel 104 between the cover 13 and the fixing base 11. The airflow channel 104 extends in the front-rear direction and one end of the airflow channel 104 communicates with the air passage 101. The air passage 101 is formed on the fixing base 11. The structure is simple and compact.

[0055] In some specific examples, the other end of the fixing base 11 defines a fixing cavity 113, and a portion of the strap shell 20 is inserted into the fixing cavity 113, that is, the strap shell 20 is inserted into the fixing base 11, so that the strap shell 20 can be rotated relative to the fixing base 11.

[0056] The air passage 104 has an air vent 101 extending from the inner peripheral wall of the fixed base 11 to the top wall of the fixed base 11, thereby connecting the air passage 104 and the fixed cavity 113. After the strap shell 20 and the fixed shell 10 are assembled in place, the vent 201 on the strap shell 20 connects with the air vent 101, thereby connecting the rear sound cavity 302 with the air passage 104.

[0057] In some specific examples, the cover 13 has an air vent 102 that is connected to the airflow channel 104.

[0058] Specifically, such as Figure 4 and Figure 6 As shown, in this example, the fixing base 11 extends in the front-rear direction and includes a portion located on the front side and another portion located on the rear side. The fixing cover 12 is placed above the front part of the fixing base 11, and the fixing cover 12 and the fixing base 11 define a mounting cavity 103 with a front opening. The cover 13 is disposed above the front part of the fixing base 11, and the cover 13 and the fixing base 11 define an airflow channel 104. The airflow channel 104 extends in the front-rear direction, and the rear end of the airflow channel 104 communicates with the vent 101. The vent 101 is formed on the fixing base 11, and the vent 102 of the airflow channel 104 is formed at the front end of the cover 13. The rear part of the fixing base 11 defines a fixing cavity 113 with a top opening and a bottom opening, so that the strap shell 20 and the fixing base 11 can be rotatably engaged.

[0059] like Figure 5 and Figure 6 As shown, in some examples, the strap shell 20 includes a connector 21 and a connector cover 22. The speaker 30 is disposed on the connector 21, and the connector cover 22 covers the connector 21. A front acoustic cavity 301 is defined between the connector cover 22, the connector 21 and the speaker 30, and a rear acoustic cavity 302 is defined between the connector 21 and the speaker 30.

[0060] The speaker 30 and the connector 21 can be connected together by adhesive bonding, snap-fitting, etc., so that the speaker 30 can isolate the inner cavity of the strap shell 20 into the front sound cavity 301 and the rear sound cavity 302. The connector 21 and the connector cover 22 can be connected together by adhesive bonding, snap-fitting, etc., so as to ensure the sealing and reliability of the connection between the connector 21 and the connector cover 22, ensure the relative sealing of the front sound cavity 301, and allow the speaker 30 to emit sound from the sound outlet 231.

[0061] like Figure 6As shown, in this embodiment, the fixing seat 11 defines a fixing cavity 113 with a top opening and a bottom opening. The inner peripheral wall of the fixing seat 11 is provided with a plurality of locking protrusions 111, which are arranged at intervals along the circumferential direction of the inner peripheral wall of the fixing seat 11. The outer peripheral wall of the connecting seat 21 is provided with a locking groove 202, which extends along the circumferential direction of the connecting seat 21. The plurality of locking protrusions 111 cooperate with the locking groove 202 to ensure the reliability of the connection between the fixing seat 11 and the connecting seat 21 and to prevent the connecting seat 21 from coming out of the fixing seat 11.

[0062] In order to ensure that the fixed seat 11 and the connecting seat 21 can cooperate smoothly, a guide surface 112 is provided on the protrusion 111. The guide surface 112 extends obliquely from top to bottom toward the center of the fixed cavity 113.

[0063] like Figures 2-3 , Figure 5 As shown, in some specific examples, the connector 21 has a sound outlet channel 203, which connects the sound outlet 231 and the front sound cavity 301, thereby conducting sound and ensuring the sound quality of the head-mounted device, thereby improving the user experience.

[0064] In some specific examples, the sound outlet channel 203 extends obliquely away from the speaker 30 to the side of the connector 21 opposite to the connector cover 22. By configuring the sound outlet channel 203 in this way, the distance between the speaker 30 and the sound outlet 231 is reduced, which helps to ensure the sound quality of the head-mounted device and thus improves the user experience.

[0065] In some specific examples, the strap shell 20 also includes a fastener 23, which cooperates with the connector 21 and the connector cover 22. The fastener 23 defines a sound hole 231 between itself and the fixed shell 10, or the fastener 23 itself defines a sound hole 231.

[0066] Therefore, by setting the fixing member 23, not only can the strap be fixed, but the connecting seat 21 can also be clamped between the fixing member 23 and the connecting cover 22, ensuring the structural compactness of the strap shell 20. Furthermore, it reduces the distance between the speaker 30 and the sound outlet 231, which helps ensure the sound quality of the head-mounted device, thereby improving the user experience.

[0067] like Figure 6 and Figure 7 As shown, in some specific examples, a wiring cavity 204 for accommodating a wire harness 50 is defined between the peripheral wall of the connecting cover 22, the peripheral wall of the connecting seat 21, and the fixing shell 10, the wire harness 50 being adapted to be arranged side by side along the height direction of the connecting seat 21.

[0068] It is understandable that the wire harness 50 here can be a battery wire harness 50 or a communication wire harness 50. The wire harness 50 can be arranged side by side along the height direction of the connector 21 and run close to the outer surface of the peripheral wall of the connector 21. This solves the problem of unbalanced torsional force when the wire harness 50 is placed horizontally, reduces the force on the wire harness 50, and extends the service life of the wire harness 50.

[0069] A head-mounted device (not shown) according to an embodiment of the present invention includes a strap assembly 100 according to the above embodiment. Since the strap assembly 100 of the head-mounted device according to the embodiment of the present invention has the above-described technical effects, the head-mounted device according to the embodiment of the present invention also has the above-described technical effects. That is, by using the strap assembly 100, not only can the size of the display module of the head-mounted device be reduced, but the distance between the speaker 30 and the sound outlet 231 can also be reduced, which helps to ensure the sound quality of the head-mounted device, thereby improving the user experience.

[0070] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0071] Other configurations and operations of the head-mounted device according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0072] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0073] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A strap assembly for a head-mounted device, characterized in that, include: A fixed shell, the fixed shell having a concave arc surface; A strap shell, which is rotatably disposed on the fixed shell, has a convex arc surface that slides in conjunction with the concave arc surface; A loudspeaker, wherein the loudspeaker is disposed within the strap housing, the loudspeaker and the strap housing define a front sound cavity and a rear sound cavity that are spaced apart, and the strap housing has a sound outlet that communicates with the front sound cavity; The strap shell includes: A connector is provided, and the speaker is disposed on the connector. A connecting cover is disposed on the connecting seat, the connecting cover, the connecting seat and the speaker define the front acoustic cavity, and the connecting seat and the speaker define the rear acoustic cavity; The fixing shell is sleeved on the outside of the connector, and a wiring cavity for accommodating the wire harness is defined between the peripheral wall of the connector cover, the peripheral wall of the connector, and the fixing shell. The wire harness is adapted to be arranged side by side along the height direction of the connector.

2. The strap assembly of the head-mounted device according to claim 1, characterized in that, The strap shell and the fixing shell are sleeved together, and the inner peripheral wall of the fixing shell and the outer peripheral wall of the strap shell are sealed together by a sealing element.

3. The strap assembly of the head-mounted device according to claim 2, characterized in that, The peripheral wall of the strap shell has a vent hole communicating with the rear acoustic cavity, and the fixing shell defines an airflow channel communicating with the outside, the airflow channel communicating with the vent hole.

4. The strap assembly for the head-mounted device according to claim 3, characterized in that, The air passage has air holes formed on the inner peripheral wall of the fixed shell. The sealing element includes a first sealing ring and a second sealing ring, which are sleeved on the peripheral wall of the strap shell and located on both sides of the vent hole in the extension direction of the rotation axis of the strap shell.

5. The strap assembly for the head-mounted device according to claim 3, characterized in that, The ventilation holes include multiple ones, which are arranged at intervals in the circumferential direction of the peripheral wall of the strap shell. The distance between two adjacent ventilation holes in the circumferential direction of the strap shell is smaller than the size of the air passage hole of the airflow channel in the circumferential direction of the strap shell.

6. The strap assembly for the head-mounted device according to claim 3, characterized in that, The fixed shell includes: Fixed base; A fixing cover is provided on one end of the fixing base and defines an installation cavity with the fixing base; The cover is disposed within the mounting cavity, and the airflow channel is defined between the cover and the fixing base or by the cover itself.

7. The strap assembly for the head-mounted device according to claim 6, characterized in that, The other end of the fixing seat defines a fixing cavity, a portion of the strap shell is inserted into the fixing cavity, and the air passage of the airflow channel extends from the inner peripheral wall of the fixing seat to the top wall of the fixing seat.

8. The strap assembly for the head-mounted device according to claim 6, characterized in that, The cover has an air outlet that communicates with the airflow channel.

9. The strap assembly for the head-mounted device according to claim 3, characterized in that, The connector has a sound outlet channel that connects the sound outlet hole and the front sound cavity.

10. The strap assembly for the head-mounted device according to claim 9, characterized in that, The sound outlet extends obliquely away from the speaker to the side of the connector opposite to the connector cover.

11. The strap assembly for the head-mounted device according to claim 3, characterized in that, The strap shell also includes a fixing member, which cooperates with the connecting seat and the connecting cover, and the fixing member and the fixing shell or the fixing member itself define the sound outlet hole.

12. A head-mounted device, characterized in that, Includes the strap assembly of the head-mounted device according to any one of claims 1-11.

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