CN110703907B - Head-mounted intelligent device and glasses for augmented reality - Google Patents

Abstract

This application discloses head-mounted smart devices and glasses for augmented reality. This head-mounted smart device includes: a smart component and a headband connected to the smart component. An elastic member made of a shape memory alloy is provided in the headband. The elastic member is thermally conductive with the smart component. connect. Using the shape memory properties of shape memory alloy, the extended and stored states of the headband can be precisely controlled, making it easier to store head-mounted smart devices.

Description

Head-mounted smart devices and glasses for augmented reality

Technical field

This application relates to an electronic device, particularly a head-mounted smart device. The application also relates to glasses for augmented reality.

Background technique

Mixed reality, or MR, is a combination of virtual reality VR and augmented reality AR. Usually, users can use head-mounted smart devices, such as MR glasses, to be immersed in a new three-dimensional environment where the computer-generated real world and virtual things are superimposed. Taking MR glasses as an example, MR glasses are equipped with multiple electronic components such as processors and sensors to superimpose computer-generated virtual things on real scenes to form a new three-dimensional environment.

Contents of the invention

The invention proposes a head-mounted intelligent device. There is an elastic member made of a shape memory alloy in the headband of the head-mounted smart device. Using the shape memory properties of shape memory alloy, the extended and stored states of the headband can be precisely controlled, making it easier to store head-mounted smart devices.

A head-mounted smart device according to the first aspect of the present invention includes: a smart component and a headband connected to the smart component. An elastic member made of a shape memory alloy is provided in the headband, and the elastic member is connected to the headband. The smart components are thermally conductively connected.

In one embodiment, the elastic member forms at least one folding area of the headgear.

In one embodiment, the transformation temperature of the shape memory alloy is between 40°C and 45°C. When it is lower than the transformation temperature, the elastic member is in a folded state; when it is higher than the transformation temperature, the elastic member is in a folded state. The elastic member is in a stretched state.

In one embodiment, the shape memory alloy is TiNi alloy or TiNiCu alloy.

In one embodiment, the headband includes a body, and the elastic member is disposed inside the body.

In one embodiment, a receiving groove is provided in the body, and the elastic member is installed in the receiving groove.

In one embodiment, the elastic member and the body are also fixedly connected through screws.

In one embodiment, the body is provided with a plurality of heat dissipation holes extending to the elastic member.

In one embodiment, a signal line is further provided in the headband, and the signal line extends across the elastic member in a fixed attachment manner.

In one embodiment, the elastic member is configured as an elastic metal sheet body.

Glasses for augmented reality according to the second aspect of the present invention include a glasses frame carrying an intelligent component and a spectacle leg connected to the spectacle frame, wherein an elastic material made of a shape memory alloy is provided on the spectacle leg. A metal sheet body, the elastic metal sheet body is thermally conductively connected to the smart component and forms the folded portion of the spectacle leg.

In one embodiment, the transformation temperature of the shape memory alloy is between 40°C and 45°C. When it is lower than the transformation temperature, the elastic metal sheet is in a folded state; when it is higher than the transformation temperature , the elastic metal sheet body is in an extended state.

In one embodiment, the spectacle frame is made of metal material, and the shape memory alloy is TiNi alloy or TiNiCu alloy.

In one embodiment, the elastic metal sheet body is located in a 1/3 area of the temples adjacent to the spectacle frame.

In one embodiment, the temples further include a body, a receiving groove is provided in the body, and the elastic metal sheet body is installed in the receiving groove.

In one embodiment, the elastic metal sheet body and the main body are also fixedly connected through screws.

In one embodiment, the body is provided with a plurality of heat dissipation holes extending to the elastic metal sheet body.

In one embodiment, a signal line is further provided in the temple, and the signal line extends across the elastic metal sheet body in a fixed attachment manner.

Compared with the existing technology, the beneficial effects of the present invention are as follows: the head-mounted intelligent device of the present invention has a foldable headband, and an elastic member made of a shape memory alloy is provided in the headband. The elastic member conducts heat with the intelligent component. type connection. In this way, the shape memory properties of the shape memory alloy can be used to accurately control the extended and stored states of the headband, thereby facilitating the storage of head-mounted smart devices. In addition, the deformation performance of the headband can be improved by utilizing the superelasticity of shape memory alloys. Furthermore, shape memory alloys can assist in the heat dissipation of smart devices, thus improving the user experience.

For the glasses for augmented reality of the present application, the elastic metal sheet body made of a shape memory alloy forms the folded portion of the temples, and with the help of the shape memory properties of the shape memory alloy, the extension and storage of the temples are completed. The number of parts of the glasses is greatly reduced, and the difficulty and cost of manufacturing the glasses are reduced. Moreover, in addition, the elastic metal sheet body can also be used as a heat dissipation component to assist in heat dissipation.

Description of the drawings

The drawings described here are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application. In the attached picture:

Figure 1 schematically shows the entire head-mounted smart device according to one embodiment of the present invention.

Figure 2 schematically shows a B-B cross-sectional view of the headband of the head-mounted smart device.

Figure 3 schematically shows a positional relationship between the elastic member and the headband body in a partially hollowed-out manner.

Figure 4 schematically shows another positional relationship between the elastic member and the headband body in a partially hollowed-out manner.

Figure 5 schematically shows the entirety of glasses for augmented reality according to another embodiment of the present invention.

Figure 6 schematically shows the cross-section of the elastic metal sheet body in the extended state.

Figure 7 schematically shows the cross section of the elastic metal sheet body in the folded state.

Figure 8 schematically shows another form of connecting the elastic metal sheet body to the main body.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and corresponding drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

Figure 1 schematically shows a head-mounted smart device 1 according to an embodiment of the present invention as a whole. As shown in FIG. 1 , a head-mounted smart device 1 (hereinafter referred to as smart device 1 for short) includes a smart component 100 and a headband 200 connected to the smart component 100 . Headband 200 is configured to be foldable. For example, the headband 200 is provided with an elastic member 300 made of a shape memory alloy, and the elastic member 300 is thermally conductively connected to the smart component 100 .

In this way, the shape memory properties of the shape memory alloy can be used to accurately control the extended state and the stored state of the headband 200, thereby facilitating the storage of the smart device 1 and making it convenient for the user to use. In another embodiment, the headband 200 is detachably connected to the smart device 1 .

When the smart component 100 is working, each electronic component of the smart component 100 will generate heat, so that the smart component 100 forms a heating element of the smart device 1 . For example, for smart glasses, when the smart component 100 is working, its temperature can reach above 40°C. In this case, the transformation temperature of the shape memory alloy used in the present invention is between 40°C and 45°C. In addition, when the temperature of the shape memory alloy is lower than its transformation temperature, the elastic member 300 is in a folded state; when the temperature of the shape memory alloy is higher than its transformation temperature, the elastic member 300 is in an extended state. In this way, the deformation of the elastic member 300 can be controlled based on the ambient temperature and the heat emitted by the smart component 100, thereby accurately controlling the extended state and the stored state of the headband 200.

For example, when the ambient temperature is 15°C, after taking the smart device 1 out of the storage box, the elastic member 300 can first be preheated to a temperature higher than the transformation temperature of the shape memory alloy, so that the elastic member 300 becomes stretched. state, the headband 200 also adapts to the extended state for use by the user. In this case, the heat dissipated by the smart component 100 can keep the elastic member 300 in the stretched state. When storing the smart device 1 , the temperature of the elastic member 300 needs to be lowered to below its transition temperature. There is no need to pay special attention to the folded shape of the elastic member 300 . This is due to the characteristics of the shape memory alloy. This greatly facilitates the user to store the smart device 1 . In this case, the elastic element 300 forms at least one folding area of the headband 200 .

In addition, the elastic piece 300 has very good elasticity when it is higher than the transformation temperature of the shape memory alloy. This can greatly improve the deformation performance of the headband 200 to adapt to the head shapes of different users.

In a specific embodiment, the shape memory alloy is TiNi alloy or TiNiCu alloy. By controlling the element ratio of the alloy and appropriate heat treatment process, the transformation temperature of the alloy can be controlled between 40°C and 45°C, which will not be described again here.

As mentioned above, when the smart component 100 is working, each electronic component of the smart component 100 will generate heat. The heat generated by the electronic components will cause the computing speed of the smart component 100 to slow down, and may even cause image and/or sound delays, which will lead to poor user experience. In the smart device 1 of the present application, the smart component 100 can not only dissipate heat to the surrounding environment by itself, but also the heat generated can be transferred to the elastic member 300 on the headband to assist in heat dissipation, which is equivalent to increasing the heat dissipation of the smart component 100 area. Therefore, the headband 200 with the elastic member 300 can greatly improve the heat dissipation capacity of the smart component 100, thereby improving the user's experience of using the smart device 1.

In one embodiment, the elastic member 300 is configured as an elastic metal sheet body 301 . The elastic metal sheet body 301 has good heat transfer and heat dissipation properties, thereby helping to dissipate heat of the smart component 100 . In addition, due to its smaller thickness, the elastic metal sheet body 301 is easier to deform and has good elasticity, which helps the smart device 1 to be worn stably on the head, and the user can see a more stable image, thus Further improves the use experience.

In other embodiments, the thickness of the elastic metal sheet 301 may be greater than or equal to 0.1 mm and less than or equal to 3.5 mm, preferably greater than or equal to 0.3 mm and less than or equal to 1.2 mm, more preferably 0.8 mm. The inventor found that the elastic metal sheet body 301 of this thickness is relatively thin, has good heat dissipation ability, has a fast deformation speed when the temperature is higher than the transformation temperature of the shape memory alloy, has a smaller weight and better elasticity, and has This helps to reduce the weight of the smart device 1 and makes the smart device 1 more stable to wear.

As shown in FIG. 2 , the elastic member 300 is disposed in the body 201 . In this way, the elastic member 300 will not be visible from the outside, thereby improving the aesthetics of the smart device 1 . In a preferred embodiment, the body 201 is provided with a plurality of heat dissipation holes 310 extending to the elastic member 300 (as shown in FIG. 1 ). The heat dissipation holes help to improve the heat dissipation capacity of the elastic member 300 without affecting the aesthetics of the smart device 1 .

In one embodiment, as shown in FIG. 3 , a receiving groove 202 is provided in the body 201 , and the elastic member 300 is installed in the receiving groove 202 . More preferably, the elastic member 300 and the body 201 are also fixedly connected together through screws, so that the elastic member 300 is disposed in the body 201 .

In a specific embodiment, for the elastic metal sheet body 301, screw holes are preset on the elastic metal sheet body 301, and corresponding screw holes are preset on the body 201. After the elastic metal sheet body 301 is After being installed in the receiving groove 202, the screw holes on the elastic metal sheet body 301 are directly opposite to the screw holes on the body 201, and then the screws are installed into the two screw holes, thereby fixing the elastic metal sheet body 301 on the body. Within 201.

In another specific embodiment, as shown in FIG. 4 , two receiving cavities 204 are spaced apart on the body 201 , and a groove 205 is formed between the two receiving cavities 204 . The receiving cavity 204 and the groove 205 together form a receiving groove of the body 201 . The body 201 also includes a cover plate (not shown) that fits the groove 205 . The two ends of the elastic metal sheet 301 are respectively inserted into the two receiving cavities 204 (as shown by the dotted lines in FIG. 4 ), and the entire body is located in the groove 205 . The cover is detachably installed in the groove 205 and covers the elastic metal sheet 301 so that the elastic metal sheet 301 is disposed in the body 201 .

In other embodiments, the main body is a plastic part, so that the elastic metal sheet 301 can be directly fixed and arranged in the main body 201 through injection molding.

A signal line 210 is also provided in the headband 200 of the smart device 1 to implement data transmission. As shown in FIG. 3 , the signal line 210 extends across the elastic member 300 in a fixed attachment manner. The planar elastic metal sheet 301 is more conducive to fixing the signal line 210 . In the embodiment shown in FIG. 4 , the signal line 210 can also extend across the elastic metal sheet 301 in a fixed attachment manner. For example, the signal line 210 can be fixedly attached to the elastic metal sheet 301 by bonding or by forming extension grooves on the surface of the elastic metal sheet 301 . When storing the headband 200, the elastic metal sheet body 301 may have a larger bending radius (for example, the bending radius is 2 mm to 100 mm, preferably 1.5 mm to 2.5 mm, and more preferably 1.8 mm). Therefore, when the elastic metal sheet body 301 is bent, the signal line 210 fixedly attached to the elastic metal sheet body 301 will bend with a larger bending radius according to the bending of the elastic metal sheet body 301, which reduces the size of the signal line. 210 The probability of accidental breakage increases the service life of the smart device 1.

Figure 5 schematically shows the entirety of glasses 6 for augmented reality according to another embodiment of the present invention. The glasses 6 are similar to the smart device 1 described above, and only the differences between the two are described here. As shown in FIG. 5 , glasses 6 include a glasses frame 600 and temples 700 connected to the glasses frame 600 . The smart component 100 as described above is disposed on the glasses frame 600, and the elastic metal sheet body 701 made of a shape memory alloy is disposed on the temples 700 (shown in the form of a cutaway temple 700 in FIG. 5 ). The elastic metal sheet body 701 is thermally conductively connected to the smart component 100 and forms the folded portion of the temples 700 . The elastic metal sheet body 701 is the same as the elastic metal sheet body 301 described above, so it also has shape memory, good heat transfer and heat dissipation performance, and a large bending radius. In this way, the traditional mechanical shaft for folding the spectacle legs 700 is omitted in the spectacles 6 , thereby greatly reducing the number of parts of the spectacles 6 and reducing the manufacturing difficulty and cost of the spectacles 6 .

It should be understood that "the elastic metal sheet body 701 is thermally conductively connected to the smart component 100" means that the elastic metal sheet body 701 is directly connected to the smart component 100, or may be indirectly connected through a heat transfer member. In one embodiment, the glasses frame 600 is made of aluminum or aluminum alloy, and the elastic metal sheet 701 is indirectly connected to the smart component 100 through the glasses frame 600 . Aluminum or aluminum alloy has good heat dissipation performance and high heat transfer coefficient, which helps to quickly transfer the heat generated by the smart component 100 to the elastic metal sheet body 701 , thereby further improving the heat dissipation capability of the glasses 6 or the smart component 100 . In addition, the density of aluminum or aluminum alloy is smaller, which helps to reduce the weight of the glasses 6 , which also helps to improve the user's experience of using the glasses 6 . Furthermore, aluminum or aluminum alloy also facilitates heat transfer between the spectacle frame 600 and the elastic metal sheet body 701, thereby helping the temperature of the elastic metal sheet body 701 to quickly reach and maintain above the transformation temperature of the shape memory alloy. Thus, the temples 700 are in an extended state.

As mentioned above, the transformation temperature of the shape memory alloy is between 40°C and 45°C, and when the smart component 100 is working, its temperature may reach above 40°C. When the temperature of the shape memory alloy is lower than its transformation temperature, the elastic metal sheet 701 is in a folded state; when the temperature of the shape memory alloy is higher than its transformation temperature, the elastic metal sheet 701 is in an extended state. In this way, through the ambient temperature and the heat emitted by the smart component 100, the extended state and the stored state of the elastic metal sheet 701 can be controlled, so that the temples 700 are in the extended state or the stored state. For example, when the temperature of the elastic metal sheet body 701 is higher than its transition temperature, the elastic metal sheet body 701 is in a stretched state, the temples 700 are stretched out and the glasses 6 are in a wearable state. When storing the glasses 6, the temperature of the elastic metal piece 701 needs to be lowered to below its transition temperature.

In one embodiment, the shape memory alloy is a TiNi alloy or a TiNiCu alloy. The inventors discovered that the shape memory alloy also has superelasticity above the transformation temperature of the shape memory alloy. In this way, the temples 700 have a wider bending range and are less likely to be damaged, which helps to adapt to the head sizes of different wearers.

Preferably, the elastic metal sheet body 701 is located within the 1/3 area of the temple 700 connected to the spectacle frame 600 . The inventor found that under this structure, when the user wears the glasses 6, the elastic metal sheet 701 will not contact the wearer's face, which avoids the higher temperature elastic metal sheet 701 causing discomfort to the wearer's face.

In addition, the temples 700 also include a body 710, a receiving groove 711 is provided in the body 710, and the elastic metal sheet body 701 is installed in the receiving groove 711. The elastic metal sheet body 701 can also be fixedly connected to the main body 710 through screws 712 . A plurality of heat dissipation holes 713 extending to the elastic metal sheet body 701 are provided on the body 710 . A signal line 714 is also provided in the temple 700, and the signal line 714 extends across the elastic metal sheet body 701 in a fixed attachment manner. These features are similar to those described above and will not be repeated here.

It should be understood that in this application, the smart component 100 may include an image component. When using the smart device 1, the user can wear the headband 200 on the head and place the smart component 100 in front of the eyes, so that the user The image generated by the smart component 100 can be seen. The smart component 100 can be imaged through virtual reality technology. The virtual reality technology described here includes but is not limited to AR technology, VR technology and MR technology. In another embodiment, the smart component 100 may also include an audio component to generate sound adapted to the image. In addition, the smart component 100 can also be an independent audio component.

The above descriptions are only examples of the present application and are not intended to limit the present application. To those skilled in the art, various modifications and variations may be made to this application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this application shall be included in the scope of the claims of this application.

Claims (19)

1. A head-mounted smart device, characterized in that it includes: a smart component and a headband connected to the smart component. An elastic member made of a shape memory alloy is provided in the headband. The elastic member is Form at least one folding area of the headband; use the shape memory properties of the shape memory alloy to control the extended state and the stowed state of the headband; the elastic member is thermally conductively connected to the smart component; the smart component includes Image component; the smart component dissipates heat to the surrounding environment by itself, and transfers the generated heat to the elastic member on the headband to assist heat dissipation; the heat dissipated by the smart component can maintain the elastic member is in a stretched state. 2. The head-mounted smart device according to claim 1, characterized in that when it is lower than the transformation temperature of the shape memory alloy, the elastic member is in a folded state; when it is higher than the transformation temperature of the shape memory alloy When the temperature rises, the elastic member is in a stretched state. 3. The head-mounted smart device according to claim 2, wherein the transformation temperature of the shape memory alloy is 40°C to 45°C. 4. The head-mounted intelligent device according to claim 3, wherein the shape memory alloy is TiNi alloy or TiNiCu alloy. 5. The head-mounted smart device according to any one of claims 1 to 4, characterized in that the headband includes a body, and the elastic member is disposed in the body. 6. The head-mounted smart device according to claim 5, characterized in that a receiving groove is provided in the body, and the elastic member is installed in the receiving groove. 7. The head-mounted intelligent device according to claim 6, characterized in that the elastic member and the body are also fixedly connected through screws. 8. The head-mounted smart device according to claim 5, wherein a plurality of heat dissipation holes extending to the elastic member are provided on the body. 9. The head-mounted intelligent device according to claim 5, wherein a signal line is further provided in the headband, and the signal line extends across the elastic member in a fixed attachment manner. 10. The head-mounted smart device according to claim 9, wherein the elastic member is configured as an elastic metal sheet. 11. Glasses for augmented reality, characterized by including a glasses frame carrying smart components and temples connected to the glasses frame, Wherein, an elastic metal sheet made of a shape memory alloy is provided on the temples. The elastic metal sheet is thermally conductively connected to the smart component and forms a folded portion of the temples; with the help of the shape memory alloy Shape memory characteristics to complete the extension and storage of the spectacle legs; the smart component includes an image component; the heat generated by the smart component is transferred to the elastic metal sheet body, and the elastic metal sheet body serves as a heat dissipation component to assist Heat dissipation; the heat dissipated by the smart component can keep the elastic metal sheet in an extended state. 12. The glasses according to claim 11, wherein the elastic metal sheet is in a folded state when it is lower than the transformation temperature of the shape memory alloy; when it is higher than the transformation temperature of the shape memory alloy , the elastic metal sheet body is in an extended state. 13. The glasses according to claim 12, wherein the transformation temperature of the shape memory alloy is between 40°C and 45°C. 14. The glasses according to claim 13, wherein the glasses frame is made of metal material, and the shape memory alloy is TiNi alloy or TiNiCu alloy. 15. The glasses according to any one of claims 11 to 14, characterized in that the elastic metal sheet body is located in the 1/3 area of the temples adjacent to the glasses frame. 16. The glasses according to claim 15, wherein the temples further comprise a body, a receiving groove is provided in the body, and the elastic metal sheet body is installed in the receiving groove. 17. The glasses according to claim 16, characterized in that the elastic metal sheet body and the main body are also fixedly connected through screws. 18. The glasses according to claim 16, wherein the main body is provided with a plurality of heat dissipation holes extending to the elastic metal sheet body. 19. The glasses according to claim 18, wherein a signal line is further provided in the temple, and the signal line extends across the elastic metal sheet in a fixed attachment manner.