Carbon fiber structural parts and wearable devices

Abstract

The present invention proposes a carbon fiber structural member and a wearable device, which relate to the technical field of composite materials. The carbon fiber structural member includes a fixed section and a deformation section connected along the length direction; the carbon fiber structural member includes at least one splicing layer, and the splicing layer includes a first carbon fiber ply located in the fixed section and a second carbon fiber ply located in the deformation section; the carbon fibers of the second carbon fiber ply are perpendicular to the length direction of the carbon fiber structural member, and the first carbon fiber ply in at least one splicing layer is a carbon fiber woven material or the carbon fibers of the first carbon fiber ply extend along the length direction of the carbon fiber structural member. The technical solution of the present application can improve the deformation ability of the structural member in the wearable device, and improve the applicability and reliability of the wearable device.

Description

Technical Field

[0001] The present invention relates to the technical field of composite materials, and in particular to a carbon fiber structural component and a wearable device. Background Art

[0002] As smart wearable products such as virtual reality (VR) and augmented reality (AR) become increasingly popular, and because they need to be worn on the head for extended periods, the demand for comfort is increasing. Due to differences in head size, it's essential to provide temples and nose pads with a certain degree of elastic deformation.

[0003] Current wearable products are often designed as glasses or helmets. Considering the structural strength and lightweight requirements, related technologies primarily use plastic materials such as PC, PC / ABS, and PA for structural components such as temples and frames. However, due to limitations in molding processes, most require injection molding, resulting in thick walls, heavy overall structure, and poor elastic deformation.

[0004] Due to their high strength and low density, carbon fiber composites can achieve the required weight and strength for wearable products with very thin walls, offering significant advantages and meeting the high-strength and lightweight design requirements for product components. However, carbon fiber is relatively brittle and has a long bending capacity, making it prone to breaking when bent. Summary of the Invention

[0005] The main purpose of the present invention is to provide a carbon fiber structural component and a wearable device, aiming to improve the deformation ability of the structural component in the wearable device and improve the applicability and reliability of the wearable device.

[0006] To achieve the above-mentioned object, the present invention provides a carbon fiber structural member, wherein the carbon fiber structural member has a fixed section and a deformable section connected along the length direction;

[0007] The carbon fiber structural member includes at least one splicing layer, wherein the splicing layer includes a first carbon fiber ply located in the fixed section and a second carbon fiber ply located in the deforming section;

[0008] The carbon fibers of the second carbon fiber ply are perpendicular to the length direction of the carbon fiber structural component, and the first carbon fiber ply in at least one of the splicing layers is a carbon fiber woven material or the carbon fibers of the first carbon fiber ply extend at least along the length direction of the carbon fiber structural component.

[0009] In one embodiment of the present application, the carbon fiber structural component includes at least one carbon fiber continuous layer, and the carbon fiber connecting layer is provided on at least one side surface of the carbon fiber structural component.

[0010] In one embodiment of the present application, the carbon fiber structural member includes two carbon fiber continuous layers, and the splicing layer is sandwiched between the two carbon fiber continuous layers.

[0011] In one embodiment of the present application, the carbon fiber structural component includes at least two splicing layers, wherein the splicing positions of two adjacent splicing layers are staggered.

[0012] In one embodiment of the present application, the carbon fiber structural member includes at least three splicing layers, wherein one splicing layer is sandwiched between the other splicing layers and serves as a middle splicing layer, and the splicing positions of the splicing layers on either side of the middle splicing layer are sequentially staggered toward the side of the second carbon fiber ply.

[0013] Alternatively, the splicing positions of the splicing layers are staggered sequentially along the length direction of the carbon fiber structural component.

[0014] In one embodiment of the present application, at least a portion of a splicing boundary between the first carbon fiber ply and the second carbon fiber ply is arranged to form an angle with a width direction of the splicing layer.

[0015] In one embodiment of the present application, one of the first carbon fiber ply and the second carbon fiber ply is provided with a splicing interface, and the other one is provided with a splicing portion adapted to the shape of the splicing interface, and the splicing portion is embedded in the splicing interface.

[0016] In one embodiment of the present application, the joint has a necked section, and the necked section is in a shrinking state toward the opening side.

[0017] In one embodiment of the present application, the ply angles of the first carbon fiber plies in two adjacent splicing layers are different.

[0018] In one embodiment of the present application, the second carbon fiber ply of at least one of the splicing layers includes at least one elastic region and at least one connecting region arranged along the width direction; the carbon fibers in the elastic region are perpendicular to the length direction of the carbon fiber structural component, and the ply angle of the connecting region is the same as the ply angle of the first carbon fiber ply.

[0019] In one embodiment of the present application, in the carbon fiber structural member, at least two layers of the second carbon fiber plies each have the elastic region and the connection region, and the connection regions of the two second carbon fiber plies are staggered.

[0020] And / or, the second carbon fiber ply includes the two connecting regions and the elastic region provided between the two connecting regions;

[0021] And / or, the second carbon fiber ply includes the two elastic regions and the connecting region provided between the two elastic regions.

[0022] In one embodiment of the present application, an accommodating cavity is formed in the fixing section.

[0023] In one embodiment of the present application, the side wall of the fixing section is provided with an opening communicating with the accommodating cavity, and the carbon fiber structural member further includes a wave-transparent material layer, and the wave-transparent material layer covers the opening of the accommodating cavity.

[0024] The present application also proposes a wearable device, comprising a carbon fiber structural member as described in any of the aforementioned embodiments.

[0025] The technical solution of the present invention adopts a carbon fiber layup structure to form a structural member in a wearable device, which can meet the wearable device's requirements for high strength and lightweight structural members. The carbon fiber structural member includes a fixed section and a deformable section, and the carbon fiber structural member includes at least one splicing layer formed by splicing a first carbon fiber layup and a second carbon fiber layup, the first carbon fiber layup corresponds to the fixed section, and the layup angle of the first carbon fiber layup in at least one splicing layer is 0° or is set at an acute angle. A carbon fiber woven layer can also be used, that is, the first carbon fiber layup has carbon fibers extending roughly along the length direction of the carbon fiber structural member, so that the fixed section has good structural strength and is not easy to bend.

[0026] The second carbon fiber layer corresponds to the deformation section, and the carbon fibers in the second carbon fiber layer are perpendicular to the length of the structural member, thereby improving the elastic deformation ability of the carbon fiber structure in the deformation section, making the deformation section have better elastic bending performance. With this arrangement, when the carbon fiber structural member is used in a wearable device, the electrical components of the wearable device can be placed in the fixed section of the carbon fiber structural member, which is not easy to bend to avoid damage to the electrical components. The deformation section has good elasticity, allowing the carbon fiber structural member to bend and deform adaptively according to the size of the wearing position, thereby improving the applicability and reliability of the wearable device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0028] Figure 1 This is a structural diagram of an embodiment of the present invention in which the carbon fiber structural member is a temple;

[0029] Figure 24 is a cross-sectional view of a first embodiment of a carbon fiber structural member according to the present invention in the length and thickness directions;

[0030] Figure 3 is a cross-sectional view of a second embodiment of a carbon fiber structural member of the present invention in the length and thickness directions;

[0031] Figure 4 4 is a cross-sectional view of a third embodiment of a carbon fiber structural member according to the present invention in the length and thickness directions;

[0032] Figure 5 4 is a cross-sectional view of a carbon fiber structural member according to a fourth embodiment of the present invention in the length and thickness directions;

[0033] Figure 6 4 is a cross-sectional view of a fifth embodiment of a carbon fiber structural member according to the present invention in the length and thickness directions;

[0034] Figure 7 4 is a cross-sectional view of a sixth embodiment of a carbon fiber structural member according to the present invention in the length and thickness directions;

[0035] Figure 8 This is a structural diagram of a first embodiment of a splicing layer in a carbon fiber structural member of the present invention;

[0036] Figure 9 This is a structural diagram of a second embodiment of a splicing layer in a carbon fiber structural member of the present invention;

[0037] Figure 10 This is a structural diagram of a third embodiment of a splicing layer in a carbon fiber structural member of the present invention;

[0038] Figure 11 This is a structural diagram of a fourth embodiment of a splicing layer in a carbon fiber structural member of the present invention;

[0039] Figure 12 This is a structural diagram of a fifth embodiment of a splicing layer in a carbon fiber structural member of the present invention;

[0040] Figure 13 This is a structural diagram of a sixth embodiment of a splicing layer in a carbon fiber structural member of the present invention;

[0041] Figure 14 This is a structural diagram of a seventh embodiment of a splicing layer in a carbon fiber structural member of the present invention;

[0042] Figure 15 This is a structural diagram of an eighth embodiment of a splicing layer in a carbon fiber structural member of the present invention;

[0043] Figure 16 This is a structural diagram of a ninth embodiment of a splicing layer in a carbon fiber structural member of the present invention;

[0044] Figure 17 This is a structural diagram of a tenth embodiment of a splicing layer in a carbon fiber structural member of the present invention;

[0045] Figure 18 A cross-sectional view of another embodiment of a carbon fiber structural member of the present invention at a deformation section along the width and thickness directions;

[0046] Figure 19 This is a structural diagram of another embodiment of the present invention in which the carbon fiber structural member is a temple;

[0047] Figure 20 This is a structural diagram of an embodiment of the present invention in which the carbon fiber structural member is a mirror frame;

[0048] Figure 21 This is a structural diagram of an embodiment of the present invention in which the carbon fiber structural member is a nose pad;

[0049] Figure 22 This is a structural diagram of an embodiment of the present invention when the wearable device is a headset.

[0050] Description of Figure Numbers:

[0051] Label name Label name 100 Wearable devices 117 Splicing 10 Carbon fiber structural parts 119 Stitching Boundary 11 Splicing layer 13 Continuous layer of carbon fiber 111 First carbon fiber layup 15 Fixed segment 113 Second carbon fiber layup 17 Deformation segment 1131 Elastic area 19 Wave-transparent material layer 1133 Connecting Area 201 Carbon fiber unidirectional material 115 Interface 202 Carbon fiber woven material 1151 Neck section

[0052] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0053] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0054] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0055] In the present invention, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0056] In addition, in the present invention, descriptions such as "first" and "second" are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0057] The present invention provides a carbon fiber structural component 10 .

[0058] Combined with reference Figure 1 、 Figure 2 、 Figure 8 as well as Figure 9 In some embodiments of the present application, the carbon fiber structural member 10 has a fixed section 15 and a deformable section 17 connected along the length direction;

[0059] The carbon fiber structural component 10 includes at least one splicing layer 11, and the splicing layer 11 includes a first carbon fiber ply 111 located in the fixed section 15 and a second carbon fiber ply 113 located in the deformation section 17. The carbon fibers of the second carbon fiber ply 113 are perpendicular to the length direction of the carbon fiber structural component 10. The first carbon fiber ply 111 in at least one of the splicing layers 11 is a carbon fiber woven material 202 or the carbon fibers of the first carbon fiber ply 111 extend at least along the length direction of the carbon fiber structural component.

[0060] The carbon fiber structural member 10 proposed in this application can be used in wearable devices 100, such as virtual reality devices, augmented reality devices, mixed reality devices, and electronic devices such as headphones, and can also be wearable products such as myopia glasses and sunglasses; and the wearable devices 100 include but are not limited to glasses, masks or helmets. Figures 19 to 22 The carbon fiber structural part 10 can be the temples and frames of glasses, the nose pads of glasses, masks or helmets, the headband of headphones, or the wristband of wrist-worn devices; it can also be the internal structural parts of the temples or other structural parts with deformation requirements in the wearable device 100.

[0061] The carbon fiber structural member 10 is a carbon fiber composite material member having the characteristics of high strength and light weight, and can better meet the high strength and light weight requirements of electronic devices, especially wearable devices 100 such as head-mounted devices (such as VR devices, AR devices), for structural members.

[0062] Among them, the carbon fiber in the carbon fiber ply of the carbon fiber structural component 10 has a variety of strength grades to choose from, such as: T300 grade, T700 grade, etc. The carbon fiber ply can also use carbon fiber prepreg, which is a resin compounded on carbon fiber, among which thermoplastic resins such as epoxy resin, PC, PA, PP, PEEK, PPS, etc. can be selected, and thermosetting plastics such as phenolic, amino or polyetherimide can also be used. On the other hand, the resin also has a variety of flame retardant grades to choose from, such as: [V2] flame retardant grade, [V0] flame retardant grade. The resin is used to cover the carbon fiber ply; in this way, when the resin is cured, the carbon fiber ply is encapsulated inside the resin matrix, thus forming the carbon fiber structural component 10.

[0063] The carbon fiber structural component 10 exhibits significant anisotropy in its mechanical properties along the fiber length and perpendicular to the fiber direction. This means the material exhibits varying strength and stiffness under forces acting in different directions. The bending strength of carbon fiber varies with the fiber direction, with the strongest bending properties occurring in the direction of the carbon fibers in the component and weaker in the direction of the fibers.

[0064] In an embodiment of the present application, the carbon fiber structural member 10 has a fixed section 15 and a deformable section 17 connected to each other, the arrangement direction of the fixed section 15 and the deformable section 17 is the length direction of the carbon fiber structural member 10, and the angle between the extension direction of the carbon fiber and the length direction is the lay-up angle of the carbon fiber; for example, if the extension direction of the carbon fiber in the carbon fiber lay-up is parallel to the length direction, the lay-up angle of the carbon fiber lay-up is 0°; if the extension direction of the carbon fiber in the carbon fiber lay-up is perpendicular to the length direction of the carbon fiber structural member 10, the lay-up angle of the carbon fiber lay-up is 90°.

[0065] The carbon fiber structural component 10 includes at least one splicing layer 11, and the splicing layer 11 includes a first carbon fiber ply 111 located in the fixed section 15 and a second carbon fiber ply 113 located in the deformation section 17; wherein, the first carbon fiber ply 111 can exist in the form of a carbon fiber unidirectional material 201, and can also exist in the form of a carbon fiber woven material 202 (for example, the woven texture adopts a 2×2 twill weave); when the first carbon fiber ply 111 is a carbon fiber unidirectional material 201, the carbon fibers of at least one first carbon fiber ply 111 extend at least along the length direction of the carbon fiber structural component 10, that is, the carbon fibers of the first carbon fiber ply 111 can extend along the length direction of the carbon fiber structural component 10, and at this time, the ply angle of the first carbon fiber ply 111 is 0°. Alternatively, the carbon fibers of the first carbon fiber ply 111 can be configured to extend in both the length and width directions of the carbon fiber structural component 10, such that the ply angle of the first carbon fiber ply 111 is an acute angle, for example, a ply angle of ±45°, or alternatively, a ply angle of ±10°, ±30°, ±60°, ±80°, or any other acute angle. This configuration provides the fixing section 15 with superior rigidity and resistance to bending and deformation due to the high strength and stiffness of the carbon fiber filaments and their high bending resistance. Consequently, when the carbon fiber structural component 10 of the embodiment of the present application is employed in the wearable device 100, the electrical components of the wearable device 100 can be arranged within the fixing section 15, preventing damage due to bending of the structural component. It should be noted that when the ply angle of the first carbon fiber ply 111 is an acute angle, the ply angle can be set based on the desired structural strength, and the carbon fibers in the first carbon fiber ply 111 must extend substantially along the length of the carbon fiber structural component 10.

[0066] The carbon fibers of the second carbon fiber ply 113 are perpendicular to the length of the carbon fiber structural component 10, meaning the ply angle of the second carbon fiber ply 113 is 90°. However, due to factors such as processing errors and errors in the lamination process, the carbon fibers of the second carbon fiber ply 113 may not be completely perpendicular to the length of the carbon fiber structural component 10, and some errors may occur. It is sufficient to ensure that the carbon fibers of the second carbon fiber ply 113 are approximately perpendicular to the length of the carbon fiber structural component 10. For example, the ply angle of the second carbon fiber ply 113 can be ±89° or ±87°. This arrangement improves the flexural strength of the deformable section 17, making it less susceptible to breakage and damage, as the carbon fiber ply 113 is arranged along the length of the carbon fiber structural component 10. In other words, the flexural strength of the carbon fiber structural component 10 in the deformable section 17 is stronger than that in the fixed section 15. The joining method between the first carbon fiber ply 111 and the second carbon fiber ply 113 can be adhesive bonding, hot pressing, or other methods, which are not limited herein.

[0067] In addition, it should be noted that the carbon fiber structural member 10 of the embodiment of the present application includes at least one fixed section 15 and at least one deformable section 17, that is, the carbon fiber structural member 10 can include more than one fixed section 15 and one deformable section 17. For example, the carbon fiber structural member 10 can include two fixed sections 15 and one deformable section 17. For example, taking the temple of glasses shown in the figure as an example, in some embodiments, the front end of the temple is used to accommodate the computing unit and acoustic components, and the rear end of the temple is provided with a charging port. Therefore, the front end and the rear end of the temple need to be rigid structures and cannot be deformed. To accommodate the differences in head shapes of different people, the temple requires a certain degree of deformation. Therefore, a section between the front end and the rear end of the temple is provided as a deformable section, so that the temple can bend in the deformable section without breaking. In addition, for example, the frame area on both sides of the glasses frame for mounting the lenses is not allowed to deform, while the connecting section connecting the two frame areas requires a certain degree of deformation. Also, structures such as the headband of headphones can all be provided as the carbon fiber structural member 10 of the embodiment of the present application. The carbon fiber structural member 10 can also include two deformable sections 17 and a fixed section 15. For example, the nose pads of glasses or masks, the nose pads on both sides of the nose pads need to fit the nose shapes of different users, so a certain amount of deformation is required, and the connecting section connecting the two nose pads needs to be connected and fixed to the glasses frame or the mask body, and deformation is not allowed.

[0068] Therefore, it can be understood that the technical solution of the present application adopts a carbon fiber layup structure to make the structural parts in the wearable device 100, which can meet the high strength and lightweight requirements of the wearable device 100 for the structural parts. Among them, the carbon fiber structural part 10 includes a fixed section 15 and a deformable section 17, and the carbon fiber structural part 10 includes at least one splicing layer 11 formed by splicing a first carbon fiber layup 111 and a second carbon fiber layup 113. The first carbon fiber layup 111 corresponds to the fixed section 15, and the layup angle of the first carbon fiber layup 111 in at least one splicing layer 11 is 0° or is set at an acute angle. A carbon fiber woven layer can also be used, that is, the first carbon fiber layup 111 has carbon fibers extending roughly along the length direction of the carbon fiber structural part 10, so that the fixed section 15 has good structural strength and is not easy to bend.

[0069] The second carbon fiber layer 113 corresponds to the deformation section 17, and the carbon fibers in the second carbon fiber layer 113 extend perpendicular to the length of the structural member. This improves the elastic deformation capability of the carbon fiber structure in the deformation section 17, giving the deformation section 17 excellent elastic bending properties. With this arrangement, when the carbon fiber structural member 10 is used in a wearable device 100, the electrical components of the wearable device 100 can be mounted in the fixed section 15 of the carbon fiber structural member 10. The fixed section 15 is less prone to bending, thus preventing damage to the electrical components. The excellent elasticity of the deformation section 17 allows the carbon fiber structural member 10 to bend and deform adaptively based on the size of the wearable position, thereby improving the applicability and reliability of the wearable device 100.

[0070] Please refer to Figures 2 to 5 In some embodiments of the present application, the carbon fiber structural component 10 includes at least one carbon fiber continuous layer 13, and the carbon fiber connecting layer is provided on at least one side surface of the carbon fiber structural component 10.

[0071] In the embodiment of the present application, a continuous carbon fiber layer 13 is provided on at least one side of the carbon fiber structural member 10. The carbon fibers on the continuous carbon fiber layer 13 are laid in the same direction, so that the outermost layer of the carbon fiber structural member 10 is a complete carbon fiber layer. The carbon fiber layup angles on the continuous carbon fiber layer 13 can be 0°, 90°, ±45°, or other layup angles. The carbon fiber connecting layer can also be made of carbon fiber woven material, which is not limited here. The use of a complete continuous carbon fiber layer 13 covering the first carbon fiber layer 111 and the second carbon fiber layer 113 of the splicing section can improve the structural strength of the carbon fiber structural member 10 and ensure the integrity of the outer side of the carbon fiber structural member 10. It also avoids the problem of cracking at the splicing position, which may cause damage to the carbon fiber structural member 10, cracking in appearance, or warping.

[0072] It should be noted that, in the embodiment of the present application, when the laying angle of the carbon fiber continuous layer 13 is not 90°, for example, the laying angle is 0°, ±10°, ±30°, ±45°, ±60°, ±80° or any other acute angle, or when the carbon fiber woven material 202 is used, it will have a certain impact on the elasticity of the deformation section 17. At this time, the thickness of the carbon fiber continuous layer 13 can be appropriately reduced, for example, the thickness of the carbon fiber connecting layer is made smaller than the thickness of the splicing layer 11, so as to ensure the elasticity of the deformation section 17 while making the outer side of the carbon fiber structural component 10 intact.

[0073] Please refer to Figures 2 to 5 In some embodiments of the present application, the carbon fiber structural member 10 includes two carbon fiber continuous layers 13 , and the splicing layer 11 is sandwiched between the two carbon fiber continuous layers 13 .

[0074] In this embodiment, continuous carbon fiber layers 13 are provided on both sides of the carbon fiber structural member 10. This arrangement further enhances the structural strength of the carbon fiber structural member 10 and ensures the integrity of each surface of the carbon fiber structural member 10. It also prevents cracking at the splicing locations, which could lead to damage to the carbon fiber structural member 10, cracking in appearance, or warping. The two continuous carbon fiber layers 13 can be carbon fiber unidirectional materials 201 with the same layup angle, or with different layup angles, or at least one of the continuous carbon fiber layers 13 can be a carbon fiber woven material 202, without limitation.

[0075] Please refer to Figure 6 and Figure 7 In some embodiments of the present application, the carbon fiber structural member 10 includes at least two layers of the splicing layers 11, wherein the splicing positions of two adjacent splicing layers 11 are staggered.

[0076] In this embodiment, the carbon fiber structural member 10 is formed by stacking at least two splicing layers 11; this arrangement can improve the structural strength of the carbon fiber structural member 10. In addition, the splicing positions of the two splicing layers 11 are staggered, so that the splicing position of one splicing layer 11 can be located on the first carbon fiber ply 111 or the second carbon fiber ply 113 of the other splicing layer 11, that is, the splicing position of one splicing layer 11 is limited by the splicing position of the other splicing layer 11. This prevents the first carbon fiber ply 111 or the second carbon fiber ply 113 from warping and deformation at the splicing position, thereby improving the reliability of the carbon fiber structure.

[0077] Please refer to Figure 6 In some embodiments of the present application, the carbon fiber structural component 10 includes at least three layers of the splicing layers 11, wherein one of the splicing layers 11 is sandwiched between the other splicing layers 11 and serves as a middle splicing layer 11, and the splicing positions of the splicing layers 11 on either side of the middle splicing layer 11 are staggered sequentially toward the side of the second carbon fiber ply 113.

[0078] In this embodiment, the carbon fiber structural member 10 is formed by stacking at least three splicing layers 11. This arrangement can improve the structural strength of the carbon fiber structural member 10. The splicing layer 11 located approximately in the middle of the thickness direction of the carbon fiber structural member 10, that is, the stacking direction of the splicing layers 11, is referred to as the middle splicing layer 11. The middle splicing layer 11 is stacked on both the upper and lower sides of the middle splicing layer 11. For example, if the carbon fiber structural member 10 includes three splicing layers 11, the middle splicing layer 11 is referred to as the middle splicing layer 11. If the carbon fiber structural member 10 includes four splicing layers 11, either of the middle two layers can be used as the middle splicing layer 11. Among them, the splicing positions of each splicing layer 11 on either side of the middle splicing layer 11 are successively offset toward the side of the second carbon fiber ply 113; that is, on the upper side of the middle splicing layer 11, the splicing positions of each splicing layer 11 including the middle splicing layer 11 are successively offset toward the side close to the second carbon fiber ply 113; similarly, on the lower side of the middle splicing layer 11, the splicing positions of each splicing layer 11 including the middle splicing layer 11 are successively offset toward the side close to the second carbon fiber ply 113; with such an arrangement, if the offset distances of two adjacent splicing positions are consistent, the splicing positions of each splicing layer 11 in the carbon fiber structural component 10 can be roughly symmetrical with the middle splicing layer 11 as the boundary; of course, the offset distances of the splicing positions can also be inconsistent. With such an arrangement, the carbon fiber structural component 10 can be prevented from warping and deformation at the splicing positions during the molding process.

[0079] Please refer to Figure 7 In some embodiments of the present application, the splicing positions of the splicing layers 11 are staggered sequentially along the length direction of the carbon fiber structural component 10 .

[0080] In this embodiment, the splicing positions of each splicing layer 11 in the carbon fiber structural member 10 are staggered from top to bottom along the length direction of the carbon fiber structural member 10, so that each layer of the first carbon fiber ply 111 and each layer of the second carbon fiber ply 113 are both stepped structures, which can better realize the fiber transition of the deformation section 17 and the fixed section 15 and improve the molding convenience.

[0081] Please refer to Figures 10 to 15 In some embodiments of the present application, at least a portion of the splicing boundary 119 of the first carbon fiber ply 111 and the second carbon fiber ply 113 is arranged at an angle to the width direction of the splicing layer 11 .

[0082] In this embodiment, the width direction of the carbon fiber structural component 10 is defined as the direction perpendicular to the length direction of the carbon fiber ply 111 on the carbon fiber ply plane. In the splicing layer 11, at least a portion of the splicing boundary 119 between the first carbon fiber ply 111 and the second carbon fiber ply 113 is arranged at an angle to the width direction of the splicing layer 11. This can be done by having the entire splicing boundary 119 extend obliquely along the width direction of the splicing layer 11, or by having the splicing boundary 119 extend in a zigzag manner along the width direction of the carbon fiber structure. For example, the splicing boundary 119 can be configured to have an undulating pattern along the length of the carbon fiber structural component 10, such as wavy, zigzag, or other regular or irregular undulations. Alternatively, the splicing boundary 119 can be configured to have a stepped pattern, a circular pattern, or other regular or irregular undulations. This arrangement results in a longer connection region 1133 between the first carbon fiber ply 111 and the second carbon fiber ply 113, compared to a configuration in which the splicing boundary 119 extends straight along the width direction, thereby improving the connection strength between the first carbon fiber ply 111 and the second carbon fiber ply 113.

[0083] Furthermore, since the layup angle of the second carbon fiber ply 113 is 90°, if the splicing boundary 119 extends straight along the width direction, only the carbon fiber filaments closest to the first carbon fiber ply 111 in the second carbon fiber ply 113 are connected to the first carbon fiber ply 111. However, when the splicing boundary 119 is extended, more carbon fiber filaments in the second carbon fiber ply 113 are connected to the first carbon fiber ply 111, which can also improve the connection strength between the first carbon fiber ply 111 and the second carbon fiber ply 113, improve the overall structural reliability, and reduce the risk of cracking at the splicing position.

[0084] Please refer to Figures 11 to 15 In some embodiments of the present application, one of the first carbon fiber ply 111 and the second carbon fiber ply 113 is provided with a splicing interface 115, and the other one is provided with a splicing portion 117 that is adapted to the shape of the splicing interface 115, and the splicing portion 117 is embedded in the splicing interface 115.

[0085] In this embodiment, a splicing joint 115 and a splicing portion 117 are provided at the splicing position of the first carbon fiber ply 111 and the second carbon fiber ply 113 in the splicing layer 11. The splicing joint 115 can be provided at the edge of the first carbon fiber ply 111, and the splicing portion 117 can be provided at the edge of the second carbon fiber ply 113; or the splicing joint 115 can be provided at the edge of the second carbon fiber ply 113, and the splicing portion 117 can be provided at the edge of the first carbon fiber ply 111. The splicing portion 117 is adapted to the shape of the splicing joint 115, so that the splicing portion 117 is embedded in the splicing joint 115 so that the edge of the splicing portion 117 is aligned with the edge of the splicing joint 115 for splicing. By providing the splicing portion 117 and the splicing joint 115, a splicing boundary 119 between the first carbon fiber ply 111 and the second carbon fiber ply 113 is formed into a tortuous boundary, thereby improving the connection strength between the first carbon fiber ply 111 and the second carbon fiber ply 113. The shapes of the splicing port 115 and the splicing portion 117 may be rectangular, circular, zigzag, wavy, trapezoidal, or a combination of at least two of these structures, or other regular or irregular shapes, which are not limited here.

[0086] Please refer to Figure 13 and Figure 14 In some embodiments of the present application, the joint 115 has a contraction section 1151, and the contraction section 1151 is in a contraction state toward the opening side.

[0087] In this embodiment, in the arrangement direction of the first carbon fiber ply 111 and the second carbon fiber ply 113, i.e., the length direction of the carbon fiber structural component 10, the splicing joint 115 has a contracted width constricted section 1151. This can be a structure that makes the splicing joint 115 as a whole gradually contracted in width, or a section of the splicing joint 115 can be a contracted section. The contracted section can be a dovetail groove, an arc groove, or other regular or irregular contracted structure. In this arrangement, when the first carbon fiber ply 111 and the second carbon fiber ply 113 are spliced ​​together, the splicing section 117 is embedded in the splicing joint 115. Due to the provision of the contracted section, the splicing section 117 is not easily dislodged from the splicing joint 115 in the length direction of the carbon fiber structural component 10, further improving the connection strength between the first carbon fiber ply 111 and the second carbon fiber ply 113, thereby improving the structural reliability of the splicing layer 11 and reducing the risk of fracture of the splicing layer 11 when subjected to tension or bending.

[0088] In some embodiments of the present application, the layup angles of the first carbon fiber plies 111 in two adjacent splicing layers 11 are different.

[0089] In this embodiment, the carbon fiber structural member 10 is formed by stacking at least two splicing layers 11; this arrangement can improve the structural strength of the carbon fiber structural member 10. In addition, the ply angles of the first carbon fiber plies 111 in the two splicing layers 11 can be different; for example, the ply angle of one first carbon fiber ply 111 can be 0°, while the ply angle of the adjacent first carbon fiber ply 111 can be 90°, ±45°, or other angles; or the ply angles of the two first carbon fiber plies 111 can be 45° and -45°, respectively; or one layer can be made of carbon fiber unidirectional material 201 and the other layer of carbon fiber woven material 202. Taking three splicing layers 11 as an example, a ply angle of ±45°, a 0° / 90° / 0° or 90° / 0° / 90° ply design, or a carbon fiber woven material 202 can be used.

[0090] Please refer to Figure 16 and Figure 17 In some embodiments of the present application, the second carbon fiber ply 113 of at least one of the splicing layers 11 includes at least one elastic region 1131 and at least one connecting region 1133 arranged along the width direction; the carbon fibers of the elastic region 1131 are perpendicular to the length direction of the carbon fiber structural component 10, and the ply angle of the connecting region 1133 is the same as the ply angle of the first carbon fiber ply 111.

[0091] In this embodiment, the second carbon fiber ply 113 in the splicing layer 11 has an elastic region 1131 and a connection region 1133 arranged side by side along the width direction of the carbon fiber structural component 10. The carbon fiber ply in the elastic region 1131 has a 90° layup angle, perpendicular to the length direction of the carbon fiber structural component 10. This allows the second carbon fiber ply 113 to have good elastic deformation ability, thereby improving the bending performance of the carbon fiber structural component 10 in the deformation section 17. The layup angle of the carbon fibers in the connection region 1133 is consistent with the layup angle of the first carbon fiber ply 111, so that the connection region 1133 and the first carbon fiber ply 111 effectively form a one-piece continuous structure. This can also be understood as partially hollowing out the first carbon fiber ply 111 and embedding the second carbon fiber ply 113 in the hollowed-out position. This arrangement improves the connection strength between the first carbon fiber ply 111 and the second carbon fiber ply 113 by connecting the connection region 1133 on the second carbon fiber ply 113 to the first carbon fiber ply 111, thereby enhancing the reliability of the overall structure.

[0092] It should be noted that, in this embodiment, a connection region 1133 may be provided at an edge position of the second carbon fiber ply 113 in the width direction. For example, a connection region 1133 may be provided at both side edges of the deformation region, and an elastic region 1131 may be provided between the two connection regions 1133. Alternatively, two elastic regions 1131 may be provided side by side along the width direction, and a connection region 1133 may be provided between the two elastic regions 1131. Both of these may serve to improve the connection strength between the deformation region and the fixed region.

[0093] It should also be noted that, in the embodiment of the present application, the carbon fiber structural member 10 may include at least two splicing layers 11, and only the second carbon fiber plies 113 in some of the splicing layers 11 may have a connection area 1133 and an elastic area 1131, or all the second carbon fiber plies 113 may have a connection area 1133 and an elastic area 1131, which is not limited here.

[0094] Please refer to Figure 16 In some embodiments of the present application, the second carbon fiber ply 113 includes the two connecting regions 1133 and the elastic region 1131 disposed between the two connecting regions 1133 .

[0095] In this embodiment, the connection area 1133 is arranged at the edge of the deformation area in the width direction. In this way, the fixed section 15 and the deformation section 17 form an integrated structure at the edge, thereby improving the edge strength of the carbon fiber structural member 10 and avoiding damage to the edge of the carbon fiber structural member 10, thereby preventing the carbon fiber structural member 10 from being easily damaged and broken due to external damage.

[0096] Please refer to Figure 17 In some embodiments of the present application, the second carbon fiber ply 113 includes the two elastic regions 1131 and the connecting region 1133 disposed between the two elastic regions 1131 .

[0097] In this embodiment, positioning the connection region 1133 in the middle of the deformation region in the width direction can also improve the splicing strength between the fixed segment 15 and the deformation segment 17, and can also improve the structural reliability of the deformation segment 17. Furthermore, in some embodiments, when the deformation segment 17 is provided with at least two layers of second carbon fiber plies 113, positioning the connection region 1133 in a portion of the second carbon fiber plies 113 in the middle allows for staggered positioning with another portion of the second carbon fiber plies 113 having the connection region 1133 positioned at the edge. This can improve the reliability of the carbon fiber structure while maintaining the elasticity of the deformation segment 17.

[0098] In some embodiments, at least two connection regions 1133 and at least two elastic regions 1131 may be provided, such that the connection regions 1133 and the elastic regions 1131 are staggered along the width direction of the carbon fiber structural member 10 , which is not limited herein.

[0099] Please refer to Figure 18 In some embodiments of the present application, in the carbon fiber structural member 10, at least two layers of the second carbon fiber plies 113 each have the elastic region 1131 and the connection region 1133, and the connection regions 1133 of the two second carbon fiber plies 113 are staggered.

[0100] In this embodiment, the carbon fiber structural member 10 is formed by stacking at least two splicing layers 11. This arrangement can improve the structural strength of the carbon fiber structural member 10. Furthermore, the connection regions 1133 provided on the second carbon fiber plies 113 in the two splicing layers 11 are staggered. As can be appreciated, due to the different layup angles of the carbon fibers in the connection regions 1133 and the elastic regions 1131, the layup angle of the connection regions 1133 is the same as that of the first carbon fiber plies 111, resulting in weaker bending capacity and stronger bending resistance in the connection regions 1133. Stacking the connection regions 1133 of different second carbon fiber plies 113 results in the combined bending resistance of each connection region 1133, reducing the bending capacity of the deformation section 17 and making it less susceptible to bending. Staggering the connection regions 1133 of adjacent second carbon fiber plies 113 can reduce the impact of the connection regions 1133 on the bending performance of the deformation section 17, thereby improving the reliability of the carbon fiber structure while maintaining the elasticity of the deformation section 17.

[0101] In addition, the splicing position between the elastic region 1131 and the connecting region 1133 in any second carbon fiber ply 113 is stacked with the elastic region 1131 in another second carbon fiber ply 113, thereby avoiding the problem of warping of the second carbon fiber ply 113 at the splicing position between the elastic region 1131 and the connecting region 1133, thereby improving structural reliability.

[0102] In some embodiments of the present application, an accommodating cavity is formed in the fixing section 15 .

[0103] The carbon fiber structural member 10 in the embodiment of the present application can be a structural member in the wearable device 100; a accommodating cavity can be set in the fixed section 15 with strong strength and bending resistance in the carbon fiber structural member 10, and some electrical components in the wearable device 100 are set in the accommodating cavity. Since the deformable section 17 in the carbon fiber structural member 10 is more easily bent and deformed, and the fixed section 15 has higher bending resistance, damage to the internal electrical components can be avoided when the carbon fiber structural member 10 is bent. Taking the carbon fiber structural member 10 as the temple of VR glasses as an example, due to the differences in head shapes of different people, it is necessary to provide a deformation section 17 on the temple, so that the temple can bend at the deformation section 17 position to adapt to users with different head sizes; and in VR glasses, it is also necessary to arrange computing units, acoustic components and charging interfaces, etc., so it is necessary to make at least one section of the temple have a certain rigidity and not allow deformation to be used for installing computing units, acoustic components and charging interfaces and other electrical components; at this time, the front and rear ends of the temple can be set as fixed sections 15, and the middle can be set as deformation sections 17, so that the temple can have a certain amount of deformation to suit different users, and can also avoid damage to electrical components and ensure stable performance.

[0104] In some embodiments, the wall thickness of the carbon fiber structural member 10 is made to be no more than 0.5 mm, which ensures the strength of the carbon fiber structural member 10 while preventing the carbon fiber structural member 10 from being too large, thus meeting the requirements of lightness and small volume.

[0105] Please refer to Figure 19 In some embodiments of the present application, the side wall of the fixing section 15 is provided with an opening connected to the accommodating cavity, and the carbon fiber structural member 10 further includes a wave-transparent material layer 19, and the wave-transparent material layer 19 covers the opening of the accommodating cavity.

[0106] In some embodiments, the wearable device 100 has a wireless communication function, and a wireless communication device such as an antenna or Bluetooth is set in the accommodating cavity of the fixed section 15. However, the carbon fiber ply has good electrical conductivity and electromagnetic shielding performance, which will hinder the transmission of electromagnetic signals. In the embodiment of the present application, an opening connected to the accommodating cavity is opened on the side wall of the fixed section 15, and the opening is sealed with a wave-transparent material layer 19. Such an arrangement can maintain the closure of the accommodating cavity and prevent foreign objects from entering the accommodating cavity or internal electrical components from falling out of the accommodating cavity; and a signal passing area can be formed at the position of the wave-transparent material layer 19, and the electromagnetic signal can pass through the wave-transparent material layer 19, thereby not affecting the wireless communication function of the wearable device 100. Among them, the wave-transparent material layer 19 can be made of one or more of glass fiber, silica, glass ceramics, silicon nitride, boron nitride, etc., which are not limited here.

[0107] Reference Figures 19 to 22The present application also proposes a wearable device 100, comprising a carbon fiber structural member 10 as described in any of the aforementioned embodiments. The wearable device 100 proposed in the present application can be a head-mounted device or a wrist-mounted device. Furthermore, it can be an electronic device such as a virtual reality device, an augmented reality device, a mixed reality device, or a headset, or a wearable product such as myopia glasses or sunglasses. The wearable device 100 includes, but is not limited to, glasses, masks, or helmets.

[0108] Among them, the wearable device 100 includes the carbon fiber structural part 10 proposed in any of the aforementioned embodiments of the present application; the carbon fiber structural part 10 can be the temples and frames of glasses, nose pads in glasses, masks or helmets, headbands in headphones, or wristbands of wrist-worn devices; it can also be the internal structural parts of the temples or other structural parts with deformation requirements in the wearable device 100, which are not limited here.

[0109] Since the wearable device 100 proposed in this application applies all the technical solutions of all the aforementioned embodiments, it at least has all the beneficial effects brought by all the aforementioned technical solutions, which will not be described one by one here.

[0110] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A carbon fiber structural part, characterized in that: The carbon fiber structural member comprises a fixed section and a deformable section connected along the length direction; The carbon fiber structural member includes at least one splicing layer, wherein the splicing layer includes a first carbon fiber ply located in the fixed section and a second carbon fiber ply located in the deforming section; The carbon fibers of the second carbon fiber ply are perpendicular to the length direction of the carbon fiber structural component, and the first carbon fiber ply in at least one of the splicing layers is a carbon fiber braid or the carbon fibers of the first carbon fiber ply extend at least along the length direction of the carbon fiber structural component; The second carbon fiber ply of at least one of the splicing layers includes at least one elastic region and at least one connecting region arranged along the width direction; the carbon fibers in the elastic region are perpendicular to the length direction of the carbon fiber structural component, and the ply angle of the connecting region is the same as the ply angle of the first carbon fiber ply.

2. The carbon fiber structural member according to claim 1, wherein: The carbon fiber structural component includes at least one carbon fiber continuous layer, and the carbon fiber continuous layer is provided on at least one side surface of the carbon fiber structural component.

3. The carbon fiber structural member according to claim 2, wherein: The carbon fiber structural component includes two carbon fiber continuous layers, and the splicing layer is sandwiched between the two carbon fiber continuous layers.

4. The carbon fiber structural member according to claim 1, wherein: The carbon fiber structural component comprises at least two splicing layers, wherein the splicing positions of two adjacent splicing layers are staggered.

5. The carbon fiber structural member according to claim 4, wherein: The carbon fiber structural component includes at least three splicing layers, wherein one splicing layer is sandwiched between the other splicing layers and serves as a middle splicing layer, and the splicing positions of the splicing layers on either side of the middle splicing layer are sequentially staggered toward the second carbon fiber ply. Alternatively, the splicing positions of the splicing layers are staggered sequentially along the length direction of the carbon fiber structural component.

6. The carbon fiber structural member according to claim 1, wherein: At least a portion of a splicing boundary between the first carbon fiber ply and the second carbon fiber ply is arranged at an angle to a width direction of the splicing layer.

7. The carbon fiber structural member according to claim 6, wherein: One of the first carbon fiber ply and the second carbon fiber ply is provided with a splicing interface, and the other one is provided with a splicing portion that is adapted to the shape of the splicing interface, and the splicing portion is embedded in the splicing interface.

8. The carbon fiber structural member according to claim 7, wherein: The joint has a shrinking section, and the shrinking section is in a shrinking state toward the opening side.

9. The carbon fiber structural member according to claim 1, wherein: The ply angles of the first carbon fiber plies in two adjacent splicing layers are different.

10. The carbon fiber structural member according to claim 1, wherein: In the carbon fiber structural member, at least two layers of the second carbon fiber plies each have the elastic region and the connection region, and the connection regions of the two second carbon fiber plies are staggered; And / or, the second carbon fiber ply includes the two connecting regions and the elastic region provided between the two connecting regions; And / or, the second carbon fiber ply includes the two elastic regions and the connecting region provided between the two elastic regions.

11. The carbon fiber structural member according to any one of claims 1 to 10, characterized in that: An accommodating cavity is formed in the fixing section.

12. The carbon fiber structural member according to claim 11, wherein: The side wall of the fixing section is provided with an opening communicating with the accommodating cavity. The carbon fiber structural member further comprises a wave-transparent material layer, and the wave-transparent material layer covers the opening of the accommodating cavity.

13. A wearable device, characterized in that: The carbon fiber structural member comprises the carbon fiber structural member as claimed in any one of claims 1 to 12.

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