Intelligent glasses, injection mold and injection molding method thereof

Abstract

The invention belongs to the technical field of electronic packaging and protection, and discloses intelligent glasses, an injection mold and an injection molding method thereof.The intelligent glasses comprise a glasses frame, glasses legs, an FPC and a rubber sleeve assembly, hinge shafts of the glasses legs are rotationally arranged in hinge seats of pile heads of the glasses frame, the FPC bypasses the hinge shafts, and the two ends of the FPC are located in the pile heads and the glasses legs respectively; the rubber sleeve assembly comprises a first rubber sleeve and a second rubber sleeve, the first rubber sleeve covers one side, located on the pile head, of the FPC, a first sealing groove is formed in the pile head, and the first rubber sleeve is embedded in the first sealing groove; the second rubber sleeve wraps the FPC and is located on one side of the glasses leg, a second sealing groove is formed in the glasses leg, the second rubber sleeve is embedded in the second sealing groove, the first rubber sleeve and the second rubber sleeve effectively improve the sealing effect of the hinged position of the glasses leg on the premise that flexible opening and closing of the glasses leg are not affected, and the overall waterproof performance of the intelligent glasses is improved; the injection mold is used for injection molding of the rubber sleeve assembly, and the injection molding method is applied to the injection mold.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic packaging and protection, and particularly to an intelligent glasses, an injection mold and an injection molding method thereof. Background Art

[0002] In recent years, with the rapid development of augmented reality (AR) and artificial intelligence (AI) technologies, AR / AI intelligent glasses, as a new generation of human-computer interaction terminals, have shown great application potential in fields such as consumer entertainment, industrial inspection, and medical assistance. Major technology companies have successively launched commercial products, promoting the technology from concept to practical application. However, in actual usage scenarios, AR / AI intelligent glasses face challenges in complex environmental conditions, and among them, the waterproof performance of AR / AI intelligent glasses has become a key factor restricting product reliability and user experience.

[0003] Currently, when designing AR / AI intelligent glasses on the market, they often focus on aspects such as display effects, computing performance, and lightweight, but neglect the optimization of the overall waterproof performance of the whole machine. Especially the hinged part at the connection between the temple and the frame, due to its complex structure and the need to ensure flexible opening and closing, has become a weak link in waterproof design. Most products do not perform any sealing treatment at the hinge, and only rely on the simple splicing of the frame and the temple body, which cannot effectively block the intrusion of rainwater. Once rainwater seeps into the interior of the intelligent glasses through the gap at the hinge, it is extremely easy to cause problems such as circuit board short circuits and electronic component corrosion, seriously affecting the service life and functional stability of the intelligent glasses, and even potentially causing safety hazards. Therefore, there is an urgent need to propose an intelligent glasses, an injection mold and an injection molding method thereof to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide an intelligent glasses, an injection mold and an injection molding method thereof, which can effectively improve the sealing effect at the temple hinge without affecting the flexible opening and closing of the temple, thereby enhancing the overall waterproof performance of the intelligent glasses.

[0005] To achieve this purpose, the present invention adopts the following technical solutions: An intelligent glasses, comprising a frame, temples, an FPC and a rubber sleeve assembly, wherein the hinge shaft of the temple is rotatably arranged in the hinge seat of the stud of the frame, the FPC bypasses the hinge shaft, and both ends of the FPC are respectively located inside the stud and the temple; The rubber sleeve assembly includes: A first rubber sleeve, covering the side of the FPC located at the stud, a first sealing groove is arranged in the stud, and the first rubber sleeve is embedded in the first sealing groove; The second rubber sleeve is wrapped around one side of the FPC located on the temple. A second sealing groove is provided in the temple, and the second rubber sleeve is embedded in the second sealing groove.

[0006] In some alternative embodiments, a positioning groove is formed in the first sealing groove, and the first rubber sleeve is provided with a positioning portion that can be snap-fitted into the positioning groove.

[0007] In some alternative embodiments, a relief groove is formed in the first rubber sleeve, and the circumferential side surface of the hinge shaft is movably attached to the inner wall of the relief groove.

[0008] In some alternative embodiments, the first rubber sleeve extends outwardly to form a blocking portion. When the temple is unfolded, the blocking portion is clamped between the stud and the temple.

[0009] An injection mold is used for injecting the rubber sleeve assembly of the smart glasses as described in any one of the above. The injection mold is characterized in that it includes an upper mold, a lower mold, and a pressing member. A first upper mold cavity and a second upper mold cavity are provided in the upper mold, and a first lower mold cavity, a second lower mold cavity, and a limiting groove are provided in the lower mold. When the upper mold and the lower mold are closed, the first upper mold cavity and the first lower mold cavity enclose a first cavity for injecting the first rubber sleeve, the second upper mold cavity and the second lower mold cavity enclose a second cavity for injecting the second rubber sleeve, and the upper mold and the limiting groove enclose a limiting cavity for accommodating the FPC. The limiting cavity is respectively communicated with the first cavity and the second cavity. The pressing member movably penetrates through the upper mold and is configured to press the FPC against the first cavity and the second cavity.

[0010] In some alternative embodiments, the pressing member includes a first pressing member and a second pressing member, and the upper mold is provided with a first pressing hole and a second pressing hole. One end of the first pressing hole penetrates through the top end of the upper mold, and the other end is communicated with the first upper mold cavity. The first pressing member movably penetrates through the first pressing hole and is used to press against the FPC. One end of the second pressing hole penetrates through the top end of the upper mold, and the other end is communicated with the second upper mold cavity. The second pressing member movably penetrates through the second pressing hole and is used to press against the FPC.

[0011] In some alternative embodiments, the first pressing member includes a first abutting portion and a first inserting portion connected to each other. A first stepped surface is provided between the first abutting portion and the first inserting portion. The first inserting portion is used for inserting and mating with the first pressing hole, and the first stepped surface can abut against the upper end surface of the upper mold. The second pressing member includes a second abutting portion and a second inserting portion connected to each other. A second stepped surface is provided between the second abutting portion and the second inserting portion. The second inserting portion is used for plugging and matching with the second pressing hole, and the second stepped surface can abut against the upper end surface of the upper mold.

[0012] In some alternative embodiments, the lower mold includes a first lower mold and a second lower mold. A first parting groove, a second parting groove, and a first limiting groove are provided in the first lower mold, and a third parting groove, a fourth parting groove, and a second limiting groove are provided in the second lower mold; When the first lower mold and the second lower mold are closed, the first parting groove and the third parting groove enclose and form the first lower mold cavity, the second parting groove and the fourth parting groove enclose and form the second lower mold cavity, and the first limiting groove and the second limiting groove enclose and form the limiting groove.

[0013] In some alternative embodiments, the limiting cavity is arched in an arc shape in a direction close to the upper mold in a section between the first cavity and the second cavity, and the arching radian of this section is adapted to the bending radian of the FPC in the unfolded state of the temple.

[0014] An injection molding method of an injection mold, which is applied to the injection mold described in any one of the above, includes the following steps: S1: Place the FPC in the limiting groove of the lower mold, and close the upper mold and the lower mold; S2: Pass the pressing member through the upper mold and press the FPC against the first cavity and the second cavity; S3: Inject liquid material into the first cavity and the second cavity for primary injection molding; S4: When the liquid material of the primary injection molding solidifies, pull out the pressing member, and inject liquid material into the first cavity and the second cavity again for secondary injection molding.

[0015] The beneficial effects of the present invention: The present invention provides a smart glasses, comprising a frame, temple arms, an FPC and a rubber sleeve assembly. The hinge shaft of the temple arms is rotatably arranged in the hinge seat of the socket head of the frame. The FPC bypasses the hinge shaft, and both ends of the FPC are respectively located inside the socket head and the temple arms. The rubber sleeve assembly includes a first rubber sleeve and a second rubber sleeve. The first rubber sleeve is wrapped around one side of the FPC located at the socket head. A first sealing groove is arranged in the socket head, and the first rubber sleeve is embedded in the first sealing groove. The second rubber sleeve is wrapped around one side of the FPC located at the temple arms. A second sealing groove is arranged in the temple arms, and the second rubber sleeve is embedded in the second sealing groove. By wrapping the first rubber sleeve around one side of the FPC located at the socket head and embedding the first rubber sleeve in the first sealing groove of the socket head, a sealed connection is achieved between the first rubber sleeve and the inner wall of the first sealing groove and the FPC, thereby realizing the waterproof sealing of the inside of the socket head. By wrapping the second rubber sleeve around one side of the FPC located at the temple arms and embedding the second rubber sleeve in the second sealing groove in the temple arms, a sealed connection is achieved between the second rubber sleeve and the inner wall of the second sealing groove and the FPC, thereby realizing the waterproof sealing of the inside of the temple arms. The above settings can effectively improve the sealing effect at the hinge of the temple arms and enhance the overall waterproof performance of the smart glasses without affecting the flexible opening and closing of the temple arms.

[0016] The present invention also provides an injection mold for injecting the above rubber sleeve assembly. The injection mold includes an upper mold, a lower mold and a pressing member. A first upper mold cavity and a second upper mold cavity are arranged in the upper mold. A first lower mold cavity, a second lower mold cavity and a limiting groove are arranged in the lower mold. When the upper mold and the lower mold are closed, the first upper mold cavity and the first lower mold cavity enclose a first cavity for injecting the first rubber sleeve, the second upper mold cavity and the second lower mold cavity enclose a second cavity for injecting the second rubber sleeve, and the upper mold and the limiting groove enclose a limiting cavity for accommodating the FPC, and the limiting cavity is respectively communicated with the first cavity and the second cavity. The pressing member movably penetrates through the upper mold and is configured to press the FPC against the first cavity and the second cavity. The first rubber sleeve and the second rubber sleeve are respectively injection-molded on the FPC, effectively improving the sealing effect at the hinge of the temple arms and enhancing the overall waterproof performance of the smart glasses.

[0017] The present invention also provides an injection method for the injection mold, which is applied to the above injection mold, effectively improving the sealing effect at the hinge of the temple arms and enhancing the overall waterproof performance of the smart glasses. Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of the smart glasses of the present invention; Figure 2 is a partial structural schematic diagram of the smart glasses of the present invention; Figure 3 is a schematic structural diagram of the rubber sleeve assembly wrapping the FPC of the present invention Figure 1 ; Figure 4 is a schematic structural diagram of the rubber sleeve assembly wrapping the FPC of the present inventionFigure 2 ; Figure 5 is a schematic structural diagram of the injection mold of the present invention; Figure 6 is a sectional view of the injection mold of the present invention; Figure 7 is an exploded view of the injection mold of the present invention; Figure 8 is a top view of the upper mold of the present invention; Figure 9 is a bottom view of the upper mold of the present invention; Figure 10 is a top view of the lower mold of the present invention; Figure 11 is an exploded view of the lower mold of the present invention.

[0019] In the figure: 10, frame; 101, stud; 102, hinge seat; 11, temple; 111, hinge shaft; 20, FPC; 21, rubber sleeve assembly; 211, first rubber sleeve; 2111, positioning part; 2112, relief groove; 2113, blocking part; 212, second rubber sleeve; 30, upper mold; 301, first upper mold cavity; 302, second upper mold cavity; 303, first insert; 304, first press hole; 305, second press hole; 306, first injection hole; 307, second injection hole; 308, first guide groove; 309, second guide groove; 310, vent hole; 31, lower mold; 311, first lower mold cavity; 312, second lower mold cavity; 313, limit groove; 314, first insert hole; 315, first lower mold; 3151, first parting groove; 3152, second parting groove; 3153, first limit groove; 3154, second insert; 316, second lower mold; 3161, third parting groove; 3162, fourth parting groove; 3163, second limit groove; 3164, second insert hole; 32, first press part; 321, first abutting part; 322, first inserting part; 33, second press part; 331, second abutting part; 332, second inserting part. Detailed implementation manners

[0020] The present invention will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. Additionally, it should be noted that for the convenience of description, only parts related to the present invention are shown in the drawings, rather than all the structures.

[0021] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature. [[ID=�]]

[0023] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationship shown in the drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0024] Embodiment 1

[0025] As Figures 1 to 4 shown, this embodiment provides a pair of smart glasses, including a frame 10, temple arms 11, an FPC (flexible printed circuit board) 20, and a rubber sleeve assembly 21. At both ends of the frame 10, there are stud heads 101 for connecting the temple arms 11. An articulated seat 102 is provided on the stud head 101. An articulated shaft 111 is provided on the temple arm 11. The articulated shaft 111 of the temple arm 11 is rotatably arranged in the articulated seat 102 of the stud head 101. The FPC 20 bypasses the articulated shaft 111, and both ends of the FPC 20 are respectively located inside the stud head 101 and the temple arm 11 for connecting to the circuits inside the stud head 101 and the temple arm 11.

[0026] The rubber sleeve assembly 21 includes a first rubber sleeve 211 and a second rubber sleeve 212. The first rubber sleeve 211 is wrapped around one side of the FPC 20 located at the pile head 101. A first sealing groove is provided in the pile head 101, and the first rubber sleeve 211 is embedded in the first sealing groove. The first rubber sleeve 211 is in a sealed connection with both the inner wall of the first sealing groove and the FPC 20, thereby achieving waterproof sealing of the inside of the pile head 101. The second rubber sleeve 212 is wrapped around one side of the FPC 20 located at the temple 11. A second sealing groove is provided in the temple 11, and the second rubber sleeve 212 is embedded in the second sealing groove. The second rubber sleeve 212 is in a sealed connection with both the inner wall of the second sealing groove and the FPC 20, thereby achieving waterproof sealing of the inside of the temple 11.

[0027] By wrapping the first rubber sleeve 211 and the second rubber sleeve 212 around the surface of the FPC 20, it is possible to effectively improve the sealing effect at the hinge of the temple 11 without affecting the flexible opening and closing of the temple 11, thereby enhancing the overall waterproof performance of the smart glasses.

[0028] As Figure 2 and Figure 3 shown, in some alternative embodiments, the first rubber sleeve 211 is provided with a relief groove 2112, and the circumferential side surface of the hinge shaft 111 is movably attached to the inner wall of the relief groove 2112, thereby further improving the sealing performance and enhancing the smoothness of the opening and closing of the temple 11, and improving the user experience.

[0029] As Figure 2 and Figure 4 shown, in some alternative embodiments, a positioning groove is provided in the first sealing groove, and the first rubber sleeve 211 is provided with a positioning portion 2111. The positioning portion 2111 can be snapped into the positioning groove to achieve the positioning and installation of the first rubber sleeve 211 in the first sealing groove, preventing the FPC 20 from being pulled when the temple 11 opens and closes, which may cause the first rubber sleeve 211 to shift, and is beneficial to improving the structural stability of the smart glasses and further ensuring the waterproof performance at the hinge of the pile head 101 and the temple 11.

[0030] In some alternative embodiments, the first rubber sleeve 211 extends outwardly to form a blocking portion 2113. When the temple 11 is unfolded, the blocking portion 2113 is clamped between the pile head 101 and the temple 11. When the smart glasses are in a worn state and the temple 11 is unfolded, by clamping the blocking portion 2113 between the pile head 101 and the temple 11, it is possible to further improve the sealing performance at the hinge and play a buffering and positioning role in the unfolding of the temple 11, improving the comfort of the user when wearing.

[0031] It should be noted that the two ends of the FPC20 are connected with plugs for connecting circuits. Since the thickness of the plugs is greater than that of the FPC20, it is difficult to assemble the FPC20 with the first rubber sleeve 211 and the second rubber sleeve 212. To solve the above problems, in this embodiment, both the first rubber sleeve 211 and the second rubber sleeve 212 are injection-molded and coated on the surface of the FPC20. This molding method can be mass-produced, which is beneficial to improving production efficiency and reducing production costs.

[0032] Of course, in other embodiments, the first rubber sleeve 211 or the second rubber sleeve 212 can also be set as a split type and assembled with the FPC20 by bonding, which is not limited here.

[0033] Embodiment 2

[0034] As Figures 5 to 11 shown, this embodiment provides an injection mold for injecting the rubber sleeve assembly 21 of the smart glasses in Embodiment 1.

[0035] The injection mold includes an upper mold 30, a lower mold 31 and a pressing part. A first upper mold cavity 301 and a second upper mold cavity 302 are arranged in the upper mold 30, and a first lower mold cavity 311, a second lower mold cavity 312 and a limiting groove 313 are arranged in the lower mold 31. When the upper mold 30 and the lower mold 31 are closed, the first upper mold cavity 301 and the first lower mold cavity 311 enclose to form a first cavity for injecting the first rubber sleeve 211, the second upper mold cavity 302 and the second lower mold cavity 312 enclose to form a second cavity for injecting the second rubber sleeve 212, and the upper mold 30 and the limiting groove 313 enclose to form a limiting cavity for accommodating the FPC20, and the limiting cavity is respectively communicated with the first cavity and the second cavity. The pressing part is movably penetrated through the upper mold 30 and is configured to press the FPC20 against the first cavity and the second cavity.

[0036] By setting the separable upper mold 30 and lower mold 31, it is convenient to open the mold to take out the first rubber sleeve 211 and the second rubber sleeve 212, so that the injection mold can be used repeatedly.

[0037] During injection molding, the pressing member presses the FPC 20 tightly against the first cavity and the second cavity, injects liquid material into the first cavity and the second cavity for the first injection molding. When the liquid material of the first injection molding solidifies, the FPC 20 is clamped in the liquid material of the first injection molding, so that the FPC 20 is in a preset position and a preset shape in the first cavity and the second cavity; then the pressing member is pulled out for the second injection molding to fill the material shortage caused by the occupation of the pressing member; when the liquid material of the second injection molding solidifies, the mold is opened to take out the FPC 20 coated with the first rubber sleeve 211 and the second rubber sleeve 212. Through two injection moldings, it is ensured that the first rubber sleeve 211 and the second rubber sleeve 212 are coated at the preset positions of the FPC 20 during injection molding, and the shape of the FPC 20 conforms to its shape when installed in the glasses, preventing the FPC 20 from being exposed, sticking to the edge or being misaligned, and avoiding distortion and deformation when it is installed in the glasses, so as to ensure that the FPC 20 can work normally in the smart glasses and ensure the waterproof performance of the smart glasses.

[0038] In some alternative embodiments, both ends of the limiting cavity extend to the corresponding side end faces of the lower mold 31 respectively, so that both ends of the FPC 20 can be located outside the injection mold, avoiding extrusion of the plugs at both ends of the FPC 20.

[0039] As Figure 7 shown, in some alternative embodiments, one of the upper mold 30 and the lower mold 31 is provided with a first plug-in member 303, and the other is correspondingly provided with a first plug-in hole 314. The first plug-in member 303 can be inserted into the first plug-in hole 314, so that the upper mold 30 and the lower mold 31 can be easily and quickly closed or opened.

[0040] In some alternative embodiments, the pressing member includes a first pressing member 32 and a second pressing member 33. The upper mold 30 is provided with a first pressing hole 304 and a second pressing hole 305; one end of the first pressing hole 304 penetrates through the top end of the upper mold 30, and the other end is communicated with the first upper mold cavity 301. The first pressing member 32 is movably inserted through the first pressing hole 304 for pressing the FPC 20 tightly; one end of the second pressing hole 305 penetrates through the top end of the upper mold 30, and the other end is communicated with the second upper mold cavity 302. The second pressing member 33 is movably inserted through the second pressing hole 305 for pressing the FPC 20 tightly. The first pressing member 32, the second pressing member 33 and the limiting cavity cooperate to shape the FPC 20 together, so that the shape of the FPC 20 conforms to its shape when installed in the glasses; after the first injection molding is solidified, liquid material can be injected into the first cavity through the first pressing hole 304 to fill the material shortage caused by the occupation of the first pressing member 32, so that the first rubber sleeve 211 is adapted to the shape of the first sealing groove, and liquid material can be injected into the second cavity through the second pressing hole 305 to fill the material shortage caused by the occupation of the second pressing member 33, so that the second rubber sleeve 212 is adapted to the shape of the second sealing groove.

[0041] In some alternative embodiments, the first pressing member 32 includes a connected first abutting portion 321 and a first inserting portion 322. There is a first stepped surface between the first abutting portion 321 and the first inserting portion 322. The first inserting portion 322 is used for plugging and mating with the first pressing hole 304. The first stepped surface can abut against the upper end surface of the upper die 30, thereby positioning the working depth of the first pressing member 32, ensuring that the position and shape of the FPC 20 in the first cavity are consistent during each injection molding, and improving the stability of the product quality.

[0042] The second pressing member 33 includes a connected second abutting portion 331 and a second inserting portion 332. There is a second stepped surface between the second abutting portion 331 and the second inserting portion 332. The second inserting portion 332 is used for plugging and mating with the second pressing hole 305. The second stepped surface can abut against the upper end surface of the upper die 30, thereby positioning the working depth of the second pressing member 33, ensuring that the position and shape of the FPC 20 in the second cavity are consistent during each injection molding, and improving the stability of the product quality.

[0043] As Figure 8 and Figure 9 shown, in some alternative embodiments, a first liquid injection hole 306 communicating with the first upper die cavity 301 is circumferentially provided in the first insertion hole 314, and a second liquid injection hole 307 communicating with the second upper die cavity 302 is circumferentially provided in the second insertion hole 3164. The first liquid injection hole 306 can be used to inject the first injection liquid material into the first cavity, and the second liquid injection hole 307 can be used to inject the first injection liquid material into the second cavity.

[0044] In some alternative embodiments, a first guiding groove 308 is further provided on the upper end surface of the upper die 30. The bottom surface of the first guiding groove 308 gradually slopes downward. The first liquid injection hole 306 is arranged at the lowest point of the bottom surface of the first guiding groove 308. By injecting liquid through the first guiding groove 308 into the first liquid injection hole 306, the first guiding groove 308 plays a guiding role for the liquid material, which is beneficial to improving the molding efficiency of the first rubber sleeve 211 and improving the molding quality.

[0045] Similarly, a second guiding groove 309 is further provided on the upper end surface of the upper die 30. The bottom surface of the second guiding groove 309 gradually slopes downward. The second liquid injection hole 307 is arranged at the lowest point of the bottom surface of the second guiding groove 309. By injecting liquid through the second guiding groove 309 into the second liquid injection hole 307, the second guiding groove 309 plays a guiding role for the liquid material, which is beneficial to improving the molding efficiency of the second rubber sleeve 212 and improving the molding quality.

[0046] In some alternative embodiments, the upper die 30 is further provided with exhaust holes 310 respectively communicating with the first upper die cavity 301 and the second upper die cavity 302, which are used to discharge the gas in the cavity, avoid defects such as bubbles, material shortage, and char marks caused by gas retention, and improve the molding quality.

[0047] Since the shapes and structures of the first rubber sleeve 211 and the second rubber sleeve 212 are relatively complex, it is difficult to take them out after injection molding. Therefore, as Figure 10 and Figure 11 shown, in some alternative embodiments, the lower mold 31 includes a first lower mold 315 and a second lower mold 316. A first parting groove 3151, a second parting groove 3152, and a first limiting groove 3153 are provided in the first lower mold 315, and a third parting groove 3161, a fourth parting groove 3162, and a second limiting groove 3163 are provided in the second lower mold 316; when the first lower mold 315 and the second lower mold 316 are closed, the first parting groove 3151 and the third parting groove 3161 enclose and form a first lower mold cavity 311, the second parting groove 3152 and the fourth parting groove 3162 enclose and form a second lower mold cavity 312, and the first limiting groove 3153 and the second limiting groove 3163 enclose and form a limiting groove 313. By splitting the lower mold 31 into the first lower mold 315 and the second lower mold 316, the originally integrally formed complex cavity is transformed into a combined cavity. When the molds are closed, the first parting groove 3151 and the third parting groove 3161, and the second parting groove 3152 and the fourth parting groove 3162 are respectively spliced to form the complete first lower mold cavity 311 and the second lower mold cavity 312, ensuring the product forming accuracy; when the molds are opened, the first lower mold 315 and the second lower mold 316 can be detachably separated, providing a lateral demolding space for the first rubber sleeve 211 and the second rubber sleeve 212 with complex shapes, avoiding structural jamming, deformation or damage caused by integral demolding, being beneficial to extending the service life of the mold and reducing the production cost.

[0048] In some alternative embodiments, a second plug-in member 3154 is provided on one of the first lower mold 315 and the second lower mold 316, and a second plug-in hole 3164 is correspondingly opened on the other one. The second plug-in member 3154 can be inserted into the second plug-in hole 3164, enabling the first lower mold 315 and the second lower mold 316 to be closed or opened conveniently and quickly.

[0049] As Figure 6 shown, in some alternative embodiments, the limiting cavity is arched in an arc shape towards the direction close to the upper mold 30 in the section between the first cavity and the second cavity, and the arching radian of this section is adapted to the bending radian of the FPC 20 in the unfolded state of the temple 11, so that when the first rubber sleeve 211 and the second rubber sleeve 212 are installed into the stud 101 and the temple 11, the radian of the FPC 20 is adapted to the radian of the hinge shaft 111, reducing the stress concentration generated during the repeated unfolding and folding of the FPC 20 in the temple 11, being beneficial to improving the fatigue life of the FPC 20, and being able to improve the comfort and aesthetics of wearing the smart glasses.

[0050] Embodiment III

[0051] This embodiment provides an injection molding method for an injection mold, which is applied to the injection mold in Embodiment 2 and includes the following steps: S1: Place the FPC 20 in the limit groove 313 of the lower mold 31, and close the upper mold 30 and the lower mold 31 to form a first cavity and a second cavity, and the FPC 20 passes through the first cavity and the second cavity.

[0052] S2: Pass the pressing part through the upper mold 30 and press the FPC 20 against the first cavity and the second cavity to make the FPC 20 in a preset position and a preset shape.

[0053] S3: Inject liquid material into the first cavity and the second cavity for primary injection molding to fix the FPC 20.

[0054] S4: When the liquid material of the primary injection molding solidifies, pull out the pressing part, and inject liquid material into the first cavity and the second cavity again for secondary injection molding to fill the material shortage caused by the occupation of the pressing part, so that the first rubber sleeve 211 is adapted to the shape of the first sealing groove, and the second rubber sleeve 212 is adapted to the shape of the second sealing groove.

[0055] Through the injection molding method provided by this embodiment, the first rubber sleeve 211 can be formed by overmolding on one side of the FPC 20 where the pile head 101 is located, and the second rubber sleeve 212 can be formed by overmolding on one side of the FPC 20 where the temple 11 is located. The FPC 20 connected with the first rubber sleeve 211 and the second rubber sleeve 212 is installed in the smart glasses, which can effectively improve the sealing effect at the hinge of the temple 11 without affecting the flexible opening and closing of the temple 11, thereby improving the overall waterproof performance of the smart glasses.

[0056] Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. An intelligent glasses, characterized in that, It includes a frame (10), temple arms (11), an FPC (20) and a rubber sleeve assembly (21). The hinge shaft (111) of the temple arm (11) is rotatably arranged in the hinge seat (102) of the stud (101) of the frame (10). The FPC (20) bypasses the hinge shaft (111), and both ends of the FPC (20) are respectively located inside the stud (101) and the temple arm (11). The rubber sleeve assembly (21) includes: A first rubber sleeve (211) covering one side of the FPC (20) located at the stud (101). A first sealing groove is arranged in the stud (101), and the first rubber sleeve (211) is embedded in the first sealing groove. A second rubber sleeve (212) covering one side of the FPC (20) located at the temple arm (11). A second sealing groove is arranged in the temple arm (11), and the second rubber sleeve (212) is embedded in the second sealing groove.

2. The smart glasses according to claim 1, characterized in that, A positioning groove is formed in the first sealing groove. The first rubber sleeve (211) is provided with a positioning portion (2111), and the positioning portion (2111) can be clamped in the positioning groove.

3. The smart glasses according to claim 1, characterized in that, The first rubber sleeve (211) is provided with a relief groove (2112), and the circumferential side surface of the hinge shaft (111) is movably attached to the inner wall of the relief groove (2112).

4. The smart glasses according to claim 1, characterized in that, The first rubber sleeve (211) extends outwardly to form a blocking portion (2113). When the temple arm (11) is unfolded, the blocking portion (2113) is clamped between the stud (101) and the temple arm (11).

5. An injection mold for injecting the rubber sleeve assembly (21) of the smart glasses according to any one of claims 1 to 4, characterized in that, The injection mold includes an upper mold (30), a lower mold (31) and a pressing member. A first upper mold cavity (301) and a second upper mold cavity (302) are arranged in the upper mold (30). A first lower mold cavity (311), a second lower mold cavity (312) and a limiting groove (313) are arranged in the lower mold (31). When the upper mold (30) and the lower mold (31) are closed, the first upper mold cavity (301) and the first lower mold cavity (311) enclose a first cavity for injecting the first rubber sleeve (211). The second upper mold cavity (302) and the second lower mold cavity (312) enclose a second cavity for injecting the second rubber sleeve (212). The upper mold (30) and the limiting groove (313) enclose a limiting cavity for accommodating the FPC (20), and the limiting cavity is respectively communicated with the first cavity and the second cavity. The pressing member movably penetrates through the upper mold (30) and is configured to press the FPC (20) against the first cavity and the second cavity.

6. The injection mold according to claim 5, characterized in that, The pressing member includes a first pressing member (32) and a second pressing member (33). The upper mold (30) is provided with a first pressing hole (304) and a second pressing hole (305). One end of the first pressing hole (304) penetrates the top end of the upper mold (30), and the other end is communicated with the first upper mold cavity (301). The first pressing member (32) movably penetrates through the first pressing hole (304) and is used to press against the FPC (20). One end of the second press hole (305) penetrates through the top end of the upper die (30), and the other end communicates with the second upper die cavity (302). The second pressing member (33) is movably inserted into the second press hole (305) for pressing against the FPC (20).

7. The injection mold according to claim 6, characterized in that, The first pressing member (32) includes a connected first abutting portion (321) and a first inserting portion (322). There is a first stepped surface between the first abutting portion (321) and the first inserting portion (322). The first inserting portion (322) is used for plugging and mating with the first press hole (304), and the first stepped surface can abut against the upper end surface of the upper die (30). The second pressing member (33) includes a connected second abutting portion (331) and a second inserting portion (332). There is a second stepped surface between the second abutting portion (331) and the second inserting portion (332). The second inserting portion (332) is used for plugging and mating with the second press hole (305), and the second stepped surface can abut against the upper end surface of the upper die (30).

8. The injection mold according to claim 5, characterized in that, The lower die (31) includes a first lower die (315) and a second lower die (316). A first parting groove (3151), a second parting groove (3152) and a first limiting groove (3153) are arranged in the first lower die (315), and a third parting groove (3161), a fourth parting groove (3162) and a second limiting groove (3163) are arranged in the second lower die (316). When the first lower die (315) and the second lower die (316) are clamped, the first parting groove (3151) and the third parting groove (3161) enclose and form the first lower die cavity (311), the second parting groove (3152) and the fourth parting groove (3162) enclose and form the second lower die cavity (312), and the first limiting groove (3153) and the second limiting groove (3163) enclose and form the limiting groove (313).

9. The injection mold according to claim 5, wherein The limiting cavity is arched in an arc shape towards the upper die (30) in the section between the first cavity and the second cavity, and the arching radian of this section is adapted to the bending radian of the FPC (20) in the unfolded state of the temple (11).

10. An injection molding method for an injection mold, characterized in that, Applied to the injection mold according to any one of claims 5 to 9, it includes the following steps: S1: Place the FPC (20) in the limiting groove (313) of the lower die (31), and clamp the upper die (30) and the lower die (31). S2: Insert the pressing member through the upper die (30) and press the FPC (20) against the first cavity and the second cavity. S3: Inject liquid material into the first cavity and the second cavity for primary injection molding. S4: When the liquid material of the primary injection molding solidifies, pull out the pressing member, and inject liquid material into the first cavity and the second cavity again for secondary injection molding.

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