Head-mounted device and retractable headband
By setting a spring or gear mechanism in the retractable headband of the headset device, the problem that the headset position cannot correspond to the user's ear position is solved, and better sound quality and wearable feeling is achieved.
Patent Information
- Application Number
- CN202410886202.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-08-02
- Filing Date
- 2024-07-03
- Publication Date
- 2025-02-14
AI Technical Summary
When the existing headset is adjusted in length, the movement of the headset position of the headset cannot correspond to the user's ear position, resulting in poor sound quality.
A telescopic headband is designed, by providing a spring or gear mechanism between the earphone connection part and the first connecting end, so that the distance between the earphone connection part and the first connecting end is less than half of the elongation of the telescopic headband. , thereby achieving more flexible correspondence in the headphone position.
It achieves accurate correspondence of the position of the headphones, improves the sound quality, and provides a better wearable feeling.
Smart Images
Figure CN119439501A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a head-mounted device and a retractable headband. Background Art
[0002] With the rapid advancement of current technology, the types and functions of head-mounted devices are becoming more and more diverse. Take eye mask type head-mounted devices as an example. When a user wears such a device, the gyroscope and position tracker inside the head-mounted device will track the user's movement status to project the corresponding scene image, providing the user with an experience as if they are in a virtual world.
[0003] When using a head-mounted device, in addition to improving the visual experience, the sound effect is also one of the key factors that enhance the user's immersion. If the existing head-mounted device uses headphones to enhance the sound and light experience, even if the length of the headband is adjusted according to the size of the user's head, the position of the headphones will move the same amount as the increased length of the headband, and cannot correspond to the position of the user's ears. Summary of the invention
[0004] The present invention is directed to a head-mounted device and a retractable headband, with headphones having an appropriate amount of movement, so as to provide a better wearing experience and sound quality.
[0005] The head-mounted device of the present invention includes a host, a retractable headband and an earphone. The host has a first connection portion and a second connection portion located on opposite sides. The retractable headband has an earphone connection portion and a first connection end and a second connection end located on opposite sides. The first connection end is connected to the first connection portion. The second connection end is connected to the second connection portion. When the retractable headband is extended by an extension amount, a change in the distance between the earphone connection portion and the first connection end is less than half of the extension amount. The earphone is connected to the earphone connection portion.
[0006] The retractable headband of the present invention is used for a head-mounted device. The head-mounted device includes a host and an earphone. The host has a first connecting portion and a second connecting portion located on opposite sides. The retractable headband has an earphone connecting portion and a first connecting end and a second connecting end located on opposite sides. The first connecting end is used to connect the first connecting portion. The second connecting end is used to connect the second connecting portion. When the retractable headband is extended by an extension amount, a change in the distance between the earphone connecting portion and the first connecting end is less than half of the extension amount. The earphone connecting portion is used to connect the earphone.
[0007] In one embodiment of the present invention, the retractable headband further comprises a back head pad, a first spring and a second spring. Two ends of the first spring are connected to the earphone connection part and the first connection end. Two ends of the second spring are connected to the earphone connection part and the back head pad. The elastic coefficient of the first spring is different from the elastic coefficient of the second spring.
[0008] In one embodiment of the present invention, the retractable headband further comprises a back pad, a double-layer gear, a first rack and a second rack. One end of the first rack is connected to the headphone connection portion and the first rack meshes with a plurality of inner teeth of the double-layer gear. One end of the second rack is connected to the back pad and the second rack meshes with a plurality of outer teeth of the double-layer gear.
[0009] In one embodiment of the present invention, the earphones are rotatable relative to the retractable headband.
[0010] In one embodiment of the present invention, the earphone is magnetically attracted to the earphone connecting portion.
[0011] In one embodiment of the present invention, the retractable headband further has a slide groove, and the earphone connecting part is slidably arranged in the slide groove.
[0012] Based on the above, in the head mounted device and the retractable headband of the present invention, the variation of the distance of the earphone connection portion is less than half of the extension of the retractable headband, which is easy to conform to the ear positions of different users, so that the user can obtain better sound quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is a schematic diagram of a head mounted device according to an embodiment of the present invention worn on the heads of users with different head circumferences;
[0014] Figure 2 yes Figure 1 A schematic diagram of some components of a retractable headband of a head mounted device;
[0015] Figure 3 FIG. 4 is a schematic diagram of some components of a retractable headband of a head mounted device according to another embodiment of the present invention. DETAILED DESCRIPTION
[0016] Reference will now be made in detail to exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Whenever possible, the same reference numerals are used in the drawings and the description to refer to the same or like parts.
[0017] Figure 1 Schematic diagram of a head mounted device according to an embodiment of the present invention worn on the heads of users with different head circumferences. Figure 1The head mounted device 100 of this embodiment includes a host 110, a retractable headband 120 and an earphone 130. The host 110 has a first connection portion 112A and a second connection portion 112B located on opposite sides. The retractable headband 120 has an earphone connection portion 122 and a first connection end 124A and a second connection end 124B located on opposite sides. The first connection end 124A is connected to the first connection portion 112A. The second connection end 124B is connected to the second connection portion 112B. The first connection portion 112A and the second connection portion 112B are not necessarily located at the left and right ends of the host 110, but are located on opposite sides of the host 110. The portion where the host 110 and the first connection end 124A and the second connection end 124B of the retractable headband 120 are connected is the first connection portion 112A and the second connection portion 112B.
[0018] The length of the retractable headband 120 is retractable, and the present invention does not limit the specific retractable design. When the retractable headband 120 is extended by a certain amount, a change in the distance between the headphone connecting portion 122 and the first connecting end 124A is less than half of the extension amount. The extension amount of the retractable headband 120 mentioned here refers to the increase in the length of the entire retractable headband 120. That is, the extension amount of the distance from the middle point of the retractable headband 120 to the first connecting end 124A will be half of the extension amount of the entire retractable headband 120. The earphone 130 is connected to the earphone connecting portion 122.
[0019] Because the change in the distance between the earphone connector 122 and the first connection end 124A is less than half of the elongation, the earphone connector 122 does not move the same distance as the midpoint of the retractable headband 120 corresponding to the back of the head moves, but the moving distance of the earphone connector 122 is less. When the head mounted device 100 is changed from being worn on the head 50A of a user with a smaller head circumference to being worn on the head 50B of a user with a smaller head circumference, the user will stretch the retractable headband 120 by an elongation, and the distance between the earphone connector 122 and the first connection end 124A will also change. Because the change is less than half of the elongation, the earphone connector 122 will not move too close to the back of the head and can remain close to the ear. In this way, the earphone 130 connected to the earphone connector 122 can transmit sound to the user's ear well, and there is no need to use a high-power earphone 130.
[0020] The retractable headband 120 of this embodiment is, for example, detachably connected to the host 110 , so the retractable headband 120 can be applied to different hosts 110 according to needs.
[0021] In this embodiment, the earphone 130 can rotate relative to the retractable headband 120, so it is easier to make the position of the earphone 130 correspond to the ear of the user. In this embodiment, the earphone 130 can be magnetically attracted to the earphone connecting portion 122. In other embodiments, the earphone 130 can be connected to the earphone connecting portion 122 using a spring probe or other methods. The earphone 130 can be fixedly connected to the earphone connecting portion 122, or it can be detachably connected to the earphone connecting portion 122. The earphone 130 and the host 110 can be wirelessly connected using Bluetooth or other wireless communication protocols, or they can also be connected in a wired manner. The earphone connecting portion 122 can be a base simply used for physical connection, or it can be a terminal seat with a signal transmission function. In this embodiment, the retractable headband 120 also has a slide groove 122A. The earphone connecting portion 122 is slidably arranged in the slide groove 122A. That is, the earphone connecting portion 122 can slide in the slide groove 122A, and the slide groove 122A guides the sliding direction of the earphone connecting portion 122.
[0022] The host 110 of the present embodiment is a head-mounted display, which can be applied to, for example, a virtual reality system, an augmented reality system, or a mixed reality system. The host 110 may include components such as an optical system and a protective housing, and may be provided with a display or be suitable for placing a display. The aforementioned display may be a built-in display or an external portable display (such as a smart phone, etc.), but the present invention is not limited thereto. The optical system includes optical components for changing the optical path of the display, such as a lens, a light guide, or a prism. Figure 1 The host 110 in the figure is presented in a slightly larger form, but the host 110 may also be a lighter form or other forms.
[0023] Figure 2 yes Figure 1 A schematic diagram of some components of the retractable headband of the head mounted device. Please refer to Figure 1 and Figure 2In this embodiment, the retractable headband 120 further has a back head pad 126, a first spring 128A and a second spring 128B. The back head pad 126 is used to contact the back of the user's head to provide support and increase the comfort of wearing. The two ends of the first spring 128A connect the headphone connection part 122 and the first connection end 124A. The two ends of the second spring 128B connect the headphone connection part 122 and the back head pad 126. The elastic coefficient of the first spring 128A is different from the elastic coefficient of the second spring 128B. Therefore, when the retractable headband 120 is extended by an extension amount, the change in the distance between the headphone connection part 122 and the first connection end 124A is less than half of the extension amount. For example, the ratio of the elastic coefficient of the first spring 128A to the elastic coefficient of the second spring 128B is 45 / 25. When half of the extension amount of the retractable headband 120 is 70 mm, the change in the distance between the headphone connection part 122 and the first connection end 124A is 25 mm. In addition, in other embodiments, the second spring 128B may not be connected to the back of the head pad 126, but may be connected to a certain position of the retractable headband 120 between the earphone connecting portion 122 and the back of the head pad 126. The first spring 128A may not be connected to the first connecting end 124A, but may be connected to a certain position of the retractable headband 120 between the earphone connecting portion 122 and the first connecting end 124A. If a specific ratio between the elongation of the retractable headband 120 and the movement of the earphone connecting portion 122 is desired, it can be achieved by selecting the first spring 128A and the second spring 128B with elastic coefficients of a specific ratio.
[0024] Figure 3 FIG. 4 is a schematic diagram of some components of a retractable headband of a head mounted device according to another embodiment of the present invention. Figure 3 Only some components of the retractable headband are shown in the figure, and the complete head-mounted device and its retractable headband are not shown, so no relevant component symbols are marked. Figure 1 and Figure 2 The retractable headband 120 is substantially similar to the retractable headband 120 of the embodiment of the present invention, except that the first spring 128A and the second spring 128B are replaced by a double-layer gear 227, a first rack 228A and a second rack 228B. One end of the first rack 228A is connected to the earphone connection portion 122, and the first rack 228A meshes with a plurality of inner teeth 227A of the double-layer gear 227. One end of the second rack 228B is connected to the back of the head pad 126, and the second rack 228B meshes with a plurality of outer teeth 227B of the double-layer gear 227. Because the distance between the inner teeth 227A and the center of the double-layer gear 227 is smaller than the distance between the outer teeth 227B and the center of the double-layer gear 227, when the double-layer gear 227 rotates, the distance that the second rack 228B is driven forward is greater than the distance that the first rack 228A is driven forward.
[0025] Specifically, when the user extends the retractable headband, the back of the head pad 126 pulls the second rack 228B to move a distance ΔX2, and the second rack 228B drives the double-layer gear 227 to rotate. When the double-layer gear 227 rotates, it also drives the first rack 228A to move a distance ΔX1. The distance ΔX2 is greater than the distance ΔX1. That is, the headphone connection portion 122 and the first connection end 124A (shown in FIG. Figure 1 ) is less than half of the extension of the retractable headband. If a specific ratio between the extension of the retractable headband and the movement of the earphone connector 122 is desired, this can be achieved by selecting a double-layer gear 227 with elastic coefficients of inner and outer teeth having a specific ratio.
[0026] In summary, when a user is wearing the head-mounted device of the present invention, the retractable headband can be pulled to extend to a length that best suits the user's head circumference, and the headphone connection portion can also be moved to an appropriate position during the extension process, so that the headphone can correspond to the user's ears and transmit better sound quality, thereby achieving the convenience of wearing and better sound quality.
Claims
1. A head mounted device, characterized in that: include: A host having a first connecting portion and a second connecting portion located on two opposite sides; A retractable headband, comprising an earphone connecting portion and a first connecting end and a second connecting end located at two opposite sides, wherein the first connecting end is connected to the first connecting portion, the second connecting end is connected to the second connecting portion, and when the retractable headband is extended by an extension amount, a change in the distance between the earphone connecting portion and the first connecting end is less than half of the extension amount; and The earphone is connected to the earphone connecting portion.
2. The head mounted device according to claim 1, wherein: The retractable headband also has a back head pad, a first spring and a second spring, the two ends of the first spring are connected to the headphone connecting part and the first connecting end, the two ends of the second spring are connected to the headphone connecting part and the back head pad, and the elastic coefficient of the first spring is different from the elastic coefficient of the second spring.
3. The head mounted device according to claim 1, wherein: The retractable headband also has a back head pad, a double-layer gear, a first rack and a second rack, one end of the first rack is connected to the headphone connecting part and the first rack meshes with multiple internal teeth of the double-layer gear, and one end of the second rack is connected to the back head pad and the second rack meshes with multiple external teeth of the double-layer gear.
4. The head mounted device according to claim 1, wherein: The earphone can rotate relative to the retractable headband.
5. The head mounted device according to claim 1, wherein: The earphone is magnetically attracted to the earphone connecting portion.
6. The head mounted device according to claim 1, wherein: The retractable headband also has a slide groove, and the earphone connecting part is slidably arranged in the slide groove.
7. A retractable headband for a head-mounted device, wherein the head-mounted device comprises a host and earphones, the host having a first connecting portion and a second connecting portion located on opposite sides, characterized in that: The retractable headband has an earphone connecting portion and a first connecting end and a second connecting end located on opposite sides, wherein the first connecting end is used to connect to the first connecting portion, and the second connecting end is used to connect to the second connecting portion. When the retractable headband is extended, the change in the distance between the earphone connecting portion and the first connecting end is less than half of the extension amount, and the earphone connecting portion is used to connect the earphone.
8. The retractable headband according to claim 7, characterized in that: It also has a back head pad, a first spring and a second spring, wherein the two ends of the first spring are connected to the earphone connection part and the first connection end, the two ends of the second spring are connected to the earphone connection part and the back head pad, and the elastic coefficient of the first spring is different from the elastic coefficient of the second spring.
9. The retractable headband according to claim 7, characterized in that: It also has a back head pad, a double-layer gear, a first rack and a second rack, one end of the first rack is connected to the headphone connecting part and the first rack meshes with multiple internal teeth of the double-layer gear, one end of the second rack is connected to the back head pad and the second rack meshes with multiple external teeth of the double-layer gear.
10. The retractable headband according to claim 7, characterized in that: The earphone connecting portion is used for magnetically attracting the earphone.
11. The retractable headband according to claim 7, characterized in that: The earphone can rotate relative to the retractable headband.
12. The retractable headband according to claim 7, characterized in that: A slide groove is also provided, and the earphone connecting part is slidably arranged in the slide groove.