Optical sensor module and electronic device

Abstract

The application discloses an optical sensor module and an electronic device. The shell of the electronic device is provided with a through hole for mounting the optical sensor module, and the optical sensor module comprises a light guide column and a surrounding retaining wall arranged around the light guide column. The first end of the light guide column is protruded relative to the top surface of the surrounding retaining wall, so that the light guide column can be directly attached to the through hole, the gap between the optical sensor module and the shell is reduced, and the sealing performance of the electronic device is improved.

Description

Technical Field

[0001] This application relates to the field of electronic product technology, and in particular to an optical sensor module and electronic device. Background Technology

[0002] Optical sensor modules typically include multiple structural components such as lenses and light-shielding barriers. When integrating optical sensor modules into electronic devices, the assembly process between the optical sensor module and the housing of the electronic device is complex, and there are a large number of gaps between the structural components, which can impair the sealing performance of the electronic device. Summary of the Invention

[0003] This application discloses an optical sensor module and an electronic device. In this application, the housing of the electronic device has a through hole for mounting the optical sensor module. The optical sensor module includes a light guide post and surrounding baffles. The first end of the light guide post protrudes relative to the top surface of the surrounding baffles, allowing the light guide post to directly fit into the through hole, reducing the gap between the optical sensor module and the housing, and improving the sealing performance of the electronic device.

[0004] In a first aspect, this application provides an electronic device, including a housing and an optical sensor module. The optical sensor is fixedly connected to the housing. The optical sensor module includes a light guide post and a surrounding baffle wall disposed around the light guide post. The light guide post is fixedly connected to the surrounding baffle wall. A first end of the light guide post protrudes relative to a first surface of the surrounding baffle wall. The first end includes a top surface and a side surface. The side surface of the first end surrounds the top surface of the first end and is exposed relative to the first surface of the surrounding baffle wall. The housing has a through hole and an inner sidewall. The first end is located in the through hole. The top surface of the first end is exposed relative to the housing, and the side surface of the first end faces the hole wall of the through hole. The surrounding baffle wall is located inside the housing, and the top surface of the surrounding baffle wall is fixedly connected to the inner sidewall of the housing.

[0005] In this application, when the optical sensor module is installed in the housing, the first end of the light guide post is embedded in the housing, and the side of the first end is in contact with the wall of the through hole; the surrounding baffle is located inside the housing and the first surface of the surrounding baffle is in contact with the inner wall of the housing, thus defining the assembly position of the light guide post.

[0006] Furthermore, the first end of the light guide post is embedded in a through hole, and the top surface of the first end is exposed relative to the housing, which reduces the area occupied by the optical sensor module on the surface of the electronic device, thus improving the appearance of the electronic device. The light guide post is directly attached to the through hole, reducing the gap between the optical sensor module and the housing and improving the sealing performance of the electronic device.

[0007] In one possible implementation, the outer surface of the optical sensor smoothly transitions to the outer surface of the housing, making the electronic device more aesthetically pleasing and providing a smoother, more comfortable feel when the device is in contact with the user, thus enhancing the user's experience when wearing the electronic device. The top surface of the first end is the outer surface of the optical sensor.

[0008] In one possible implementation, the light guide post includes a first lens, a second lens, and an intermediate barrier wall fixedly connected to the surrounding barrier wall. The intermediate barrier wall is disposed between the first lens and the second lens and is fixedly connected to the first lens and the second lens respectively. The top surface of the first lens, the top surface of the intermediate barrier wall, and the top surface of the second lens together constitute the top surface of the first end. The intermediate barrier wall is made of an opaque material.

[0009] In this application, the opposite sides of the first lens and the second lens are separated by an intermediate barrier wall, which is made of an opaque material. This barrier wall can block the detection light from the first lens and the second lens from propagating to the other side, thus avoiding the problem of light crossing between the first lens and the second lens, preventing the detection light emitted by the transmitter from interfering with the detection results, improving the accuracy of the detection results, and further enhancing the detection performance of the optical sensor module.

[0010] In one possible implementation, the surrounding retaining walls and the intermediate retaining wall are integrally formed. For example, the intermediate retaining wall and the surrounding retaining walls can be obtained simultaneously by casting. The bonding strength of the joint surface formed by casting is higher, improving the structural stability of the optical sensor module. In other implementations, the intermediate retaining wall can also be fixedly connected to the surrounding retaining walls in other ways, such as by adhesive.

[0011] In one possible implementation, the light guide column and the surrounding barrier are integrally molded structures, and the first lens and the second lens are integrally molded on the basis of the surrounding barrier and the middle barrier through in-mold injection molding.

[0012] In this application, the lens is integrally molded with the intermediate and surrounding retaining walls via in-mold injection molding, eliminating the step of fixing the lens to the intermediate and surrounding retaining walls with adhesives or other methods, thereby reducing adhesive gaps and simplifying the process. Furthermore, the casting process results in virtually no gaps between the mating surfaces, leading to a better appearance and sealing performance of the resulting optical sensor module. In addition, the casting process provides higher bonding strength, improving the structural stability of the optical sensor module.

[0013] In one possible implementation, the light guide post also includes a connecting piece, which is fixedly connected to the first and second lenses. The connecting piece, the first lens, and the second lens are integrally formed to improve structural integrity. For example, the connecting piece, the first lens, and the second lens can be obtained simultaneously by casting.

[0014] In one possible implementation, the connecting material can be a straight-through structure or a non-straight-through structure. Specifically, the connecting material can include two fixedly connected segments and an intermediate segment. The two connecting segments are fixedly connected to the first and second lenses, respectively, and the intermediate segment is located between the two connecting segments. The intermediate segment of the straight-through structure is straight, while the intermediate segment of the non-straight-through structure is zigzag, meaning there are bends. Therefore, light travels a shorter path in the connecting material of the straight-through structure, making it easier to propagate between the two lenses. However, during the casting process, the liquid material can flow more smoothly from one lens to another, improving yield and production efficiency. Furthermore, light travels a longer path in the connecting material of the non-straight-through structure and undergoes more reflections and refractions at the bends, thereby reducing the propagation of light between the two lenses, mitigating light crosstalk, and improving the detection performance of the optical sensor module.

[0015] In one possible implementation, the light guide post further includes a first gate fixedly connected to the periphery of the first lens and a second gate fixedly connected to the periphery of the second lens. The first and second lenses can be manufactured using a dual-gate injection molding method, that is, the molten liquid material is poured into the mold from the two gates, and the two lenses are simultaneously cast from the two gates.

[0016] In this implementation, there is no connecting material between the first lens and the second lens, that is, the first lens and the second lens are independent of each other, and there is no transmission channel for the detection light between the two lenses, which effectively solves the problem of light leakage between the two lenses and improves the detection effect of the optical sensor module.

[0017] In one possible implementation, the top surface area of ​​the first lens is smaller than that of the second lens to increase the probability that the reflected detection light enters the second lens, so that more detection light can be captured by the receiver, thereby improving the accuracy of detection.

[0018] In one possible implementation, the optical sensor module further includes a circuit board and a sensing element fixedly connected to the circuit board. The light guide column includes a second end opposite to the first end. The second end and the surrounding retaining wall enclose a receiving groove. The sensing element is located in the receiving groove. The periphery of the circuit board is fixedly connected to the second side of the surrounding retaining wall. The second side is disposed opposite to the first side.

[0019] In this application, the sensing element can be electrically connected to the circuit board. The sensing element can be used to emit and receive detection light, and can also transmit the optical information in the received detection light through the circuit board.

[0020] In one possible implementation, the sensing element includes a transmitter and a receiver spaced apart. The transmitter is positioned corresponding to a first lens and is used to emit detection light into the first lens. The receiver is positioned corresponding to a second lens and is used to receive detection light reflected by the object under test through the second lens.

[0021] In this application, the transmitting end can emit detection light, which is propagated to the outside of the electronic device through the first lens. When the detection light encounters the object to be measured, it is reflected, changing its propagation direction; the reflected detection light can enter through the second lens, propagate in the second lens, and be received by the receiving end to realize the detection function.

[0022] Secondly, this application provides an optical sensor module for use in electronic devices. The electronic device includes a housing with a through hole and an inner sidewall; the optical sensor includes a light guide post and a surrounding baffle wall surrounding the light guide post, the light guide post being fixedly connected to the surrounding baffle wall, a first end of the light guide post protruding relative to a first surface of the surrounding baffle wall, the first end including a top surface and a side surface, the side surface of the first end surrounding the top surface of the first end and exposed relative to the surrounding baffle wall; the first end is used to be embedded in the through hole, and the top surface of the surrounding baffle wall is used to be fixedly connected to the inner sidewall of the housing.

[0023] In this application, when the optical sensor module is installed in the housing, the first end of the light guide post is embedded in the housing, and the side of the first end is in contact with the wall of the through hole; the surrounding baffle is located inside the housing and the first surface of the surrounding baffle is in contact with the inner wall of the housing, thus defining the assembly position of the light guide post.

[0024] Furthermore, the first end of the light guide post is embedded in a through hole, and the top surface of the first end is exposed relative to the housing, which reduces the area occupied by the optical sensor module on the surface of the electronic device, thus improving the appearance of the electronic device. The light guide post is directly attached to the through hole, reducing the gap between the optical sensor module and the housing and improving the sealing performance of the electronic device.

[0025] In one possible implementation, the light guide post includes a first lens, a second lens, and an intermediate barrier wall fixedly connected to the surrounding barrier wall. The intermediate barrier wall is disposed between the first lens and the second lens and is fixedly connected to the first lens and the second lens respectively. The top surface of the first lens, the top surface of the intermediate barrier wall, and the top surface of the second lens together constitute the top surface of the first end. The intermediate barrier wall is made of an opaque material.

[0026] In this application, the opposite sides of the first lens and the second lens are separated by an intermediate barrier wall, which is made of an opaque material. This barrier wall can block the detection light from the first lens and the second lens from propagating to the other side, thus avoiding the problem of light crossing between the first lens and the second lens, preventing the detection light emitted by the transmitter from interfering with the detection results, improving the accuracy of the detection results, and further enhancing the detection performance of the optical sensor module.

[0027] In one possible implementation, the surrounding retaining walls and the intermediate retaining walls are integrally formed. For example, the intermediate retaining walls and the surrounding retaining walls can be obtained simultaneously by casting. The bonding strength of the joint surface formed by casting is higher, which improves the structural stability of the optical sensor module.

[0028] In one possible implementation, the light guide column and the surrounding barrier are integrally molded structures, and the first lens and the second lens are integrally molded on the basis of the surrounding barrier and the middle barrier through in-mold injection molding.

[0029] In this application, the lens is integrally molded with the intermediate and surrounding retaining walls via in-mold injection molding, eliminating the step of fixing the lens to the intermediate and surrounding retaining walls with adhesives or other methods, thereby reducing adhesive gaps and simplifying the process. Furthermore, the casting process results in virtually no gaps between the mating surfaces, leading to a better appearance and sealing performance of the resulting optical sensor module. In addition, the casting process provides higher bonding strength, improving the structural stability of the optical sensor module. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the electronic device provided in this application in some embodiments;

[0031] Figure 2 yes Figure 1 The diagram shows the internal structure of the electronic device.

[0032] Figure 3 yes Figure 2 An exploded view of the structure shown;

[0033] Figure 4 yes Figure 2 The diagram shows the structure of the optical sensor module.

[0034] Figure 5 yes Figure 4 A partially exploded schematic diagram of the optical sensor module structure shown.

[0035] Figure 6 yes Figure 5 A schematic diagram of the structure shown from another angle;

[0036] Figure 7 yes Figure 4 A schematic diagram of part of the optical sensor module shown from another angle;

[0037] Figure 8 yes Figure 7 An exploded view of the structure shown;

[0038] Figure 9 yes Figure 4 A schematic diagram of the internal structure of the optical sensor module shown.

[0039] Figure 10 yes Figure 8 A schematic diagram of the partial structure shown;

[0040] Figure 11 yes Figure 10 The diagram shown is a schematic representation of the structure in some other embodiments;

[0041] Figure 12 yes Figure 8 A schematic diagram of a portion of the optical sensor module shown in some other embodiments;

[0042] Figure 13 yes Figure 12 A schematic diagram of a portion of the optical sensor module shown.

[0043] Figure 14 yes Figure 13 The diagram shown is a schematic representation of the structure in some other embodiments. Detailed Implementation

[0044] The embodiments of this application are described below with reference to the accompanying drawings. In this document, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone.

[0045] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of the electronic device 100 provided in this application in some embodiments. The electronic device 100 can be a wearable electronic product. Wearable electronic products can have computing functions and can also achieve wireless network access through mobile communication networks or WIFI; or achieve communication connection with external devices through mobile communication networks, WIFI, or Bluetooth. Wearable electronic products can be wrist-supported watches (including watches and wristbands, etc.), foot-supported shoes (including shoes, socks, or other future leg-wearing products), head-supported glasses (including glasses, helmets, headbands, headphones, etc.), or smart clothing, backpacks, canes, accessories, etc. In some other embodiments, the electronic device 100 can also be a mobile phone, tablet computer, or other electronic product. This application embodiment uses headphones as an example for illustration.

[0046] For example, the electronic device 100 may include a housing 1 and an optical sensor module 2, the optical sensor module 2 being mounted on the housing 1. The outer surface of the electronic device 100 is jointly formed by the outer surface of the optical sensor module 2 and the outer surface of the housing 1.

[0047] For example, the optical sensor module 2 can be used for testing based on the principle of light reflection. Specifically, the detection light is emitted from the outer surface of the optical sensor module 2, reflected after hitting the object to be tested, changes its propagation direction, and then enters from the outer surface. In this application, the surface used to allow the detection light to exit from the interior of the electronic device 100 or enter from the exterior is the outer surface of the optical sensor module 2. For example, the object to be tested can be a user's skin, clothing, or other objects. The optical sensor module 2 can be used to detect data such as the user's heart rate and blood oxygen.

[0048] For example, when a user wears the electronic device 100, the outer surface 20 of the optical sensor module 2 can contact or be close to the user's skin. On the one hand, contact or closeness between the outer surface and the user's skin can prevent ambient light from entering through the outer surface, thus avoiding the influence of ambient light on the detection results. On the other hand, the closer distance between the outer surface and the user's skin can improve the accuracy of the detection results, thereby improving the performance of the optical sensor module 2.

[0049] In some other embodiments, the optical sensor module 2 can also be used as a proximity sensor or distance sensor to detect environmental data around the electronic device 100 so that the electronic device 100 can perform preset functions based on the environmental data.

[0050] For example, the housing 1 may also include a speaker hole 11, through which the sound information generated by the electronic device 100 can be transmitted to the outside of the electronic device 100, so that more sound can be transmitted to a preset location through the speaker hole 11, thereby improving the directionality and efficiency of sound information transmission.

[0051] Please refer to the following: Figure 2 and Figure 3 , Figure 2 yes Figure 1 The diagram shows the internal structure of the electronic device 100. Figure 3 yes Figure 2 An exploded view of the structure is shown. For example, the housing 1 may have a through hole 12 and an inner sidewall 13. The optical sensor module 2 is mounted on and fixedly connected to the housing 1. The outer surface of the optical sensor module 2 is exposed through the through hole 12.

[0052] For example, the outer surface of the optical sensor module 2 smoothly transitions to the outer surface of the housing 1, making the electronic device 100 more aesthetically pleasing and making the outer surface of the electronic device 100 fit the user more smoothly and feel more comfortable, thereby improving the user's experience when wearing the electronic device 100.

[0053] Please see Figure 4 , Figure 4 yes Figure 2 The diagram shows the structure of the optical sensor module 2. Exemplarily, the optical sensor module 2 may include a light guide post 21 and a surrounding barrier 22 surrounding the light guide post 21. The first end 211 of the light guide post 21 protrudes relative to the first surface 221 of the surrounding barrier 22. Specifically, the first end 211 of the light guide post 21 may include a top surface 2111 and a side surface 2112, with the side surface 2112 surrounding the top surface 2111 and exposed relative to the first surface 221 of the surrounding barrier 22. The top surface 2111 of the first end 211 is the external surface of the optical sensor module 2. It is understood that the directional terms such as "top" and "side" used in this application are descriptions based on the orientation of the accompanying drawings and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated with a specific lens orientation; therefore, they should not be construed as limitations on this application.

[0054] Please refer to the following: Figure 2 , Figure 3 and Figure 4 In this application, when the optical sensor module 2 is installed in the housing 1, the first end 211 of the light guide post 21 is embedded in the housing 1, and the side 2112 of the first end 211 is in contact with the hole wall 121 of the through hole 12; the surrounding wall 22 is located inside the housing 1 and the first surface 221 of the surrounding wall 22 is in contact with the inner side wall 13 of the housing 1, which defines the assembly position of the light guide post 21.

[0055] In this embodiment, the first end 211 of the light guide post 21 is embedded in the through hole 12, and the top surface 2111 of the first end 211 is exposed relative to the housing 1, so that the area occupied by the optical sensor module 2 on the surface of the electronic device 100 is smaller, thus improving the appearance of the electronic device 100. In addition, the light guide post 21 is directly attached to the through hole 12, reducing the gap between the optical sensor module 2 and the housing 1 and improving the sealing performance of the electronic device 100.

[0056] For example, the first surface 221 of the surrounding retaining wall 22 can be fixedly connected to the inner sidewall 13 of the housing 1 by means of adhesive or other methods, so as to fix the optical sensor module 2 to the housing 1, thereby preventing the light guide column 21 from shaking relative to the through hole 12 and affecting the accuracy and stability of the detection effect of the optical sensor module 2. In some other embodiments, the optical sensor module 2 and the housing 1 can also be fixedly connected by other means, which is not limited in this application.

[0057] In this application, the optical sensor module 2 is fixedly connected to the housing 1 by bonding the first surface 221 of the surrounding retaining wall 22 to the inner sidewall 13 of the housing 1, which improves the firmness of the fixation between the optical sensor module 2 and the housing 1. Understandably, since the side surface 2112 of the first end 211 and the hole wall 121 of the through hole 12 are both vertically oriented, the adhesive will flow under gravity, resulting in uneven adhesive distribution between the side surface 2112 of the light guide post 21 and the hole wall 121 of the through hole 12. If the side surface 2112 of the light guide post 21 and the hole wall 121 of the through hole 12 are bonded together with adhesive, uneven adhesive distribution at the bonding area will occur, and gaps are easily generated, affecting the firmness of the fixation between the optical sensor module 2 and the housing 1.

[0058] Furthermore, bonding the first surface 221 of the surrounding retaining wall 22 to the inner wall 13 of the housing 1 can improve the sealing performance between the optical sensor module 2 and the housing 1. Specifically, the adhesive between the first surface 221 of the surrounding retaining wall 22 and the inner wall 13 of the housing 1 is evenly distributed and does not easily produce gaps, thereby preventing water or dust and other impurities from entering the interior of the electronic device 100 and improving the sealing performance of the electronic device 100.

[0059] Please refer to the following: Figure 5 and Figure 6 , Figure 5 yes Figure 4 A partially exploded view of the structure of the optical sensor module 2 shown. Figure 6 yes Figure 5 A schematic diagram of the structure shown from another angle.

[0060] For example, the optical sensor module 2 may further include a circuit board 23 and a sensing element 24 fixedly connected to the circuit board 23. The sensing element 24 may be electrically connected to the circuit board 23. The sensing element 24 may be used to emit and receive detection light, and may also transmit the optical information in the received detection light through the circuit board 23.

[0061] For example, the light guide post 21 may include a second end 212 opposite to the first end 211. The second end 212 and the surrounding barrier 22 enclose a receiving groove 220, in which the sensing element 24 can be accommodated. The periphery of the circuit board 23 may be fixedly connected to the second surface 222 of the surrounding barrier 22, which is disposed opposite to the first surface 221.

[0062] In this application, the circuit board 23 is fixedly connected to the surrounding retaining wall 22 to limit the relative position of the sensing element 24 and the light guide post 21, and can also prevent the sensing element 24 from deviating from its assembly position when the electronic device 100 shakes, thereby improving the detection stability of the optical sensor module 2.

[0063] For example, the sensing element 24 is generally facing the light guide post 21, which allows the detection light emitted from the sensing element 24 to be transmitted to the outside of the electronic device 100 through the light guide post 21 as much as possible. It also allows the sensing element 24 to receive more detection light reflected back from the outside of the electronic device 100, thereby improving the transmission efficiency of the detection light and the detection performance of the optical sensor module 2.

[0064] For example, the surrounding retaining wall 22 may include a first positioning member 223 and a second positioning member 224. Both the first positioning member 223 and the second positioning member 224 are disposed on the periphery of the surrounding retaining wall 22 and on opposite sides of the surrounding retaining wall 22. The first positioning member 223 and the second positioning member 224 may protrude relative to the second surface 222 of the surrounding retaining wall 22 to define the relative position of the circuit board 23 and the surrounding retaining wall 22, facilitating the assembly of the circuit board 23 and the sensing element 24.

[0065] For example, the surrounding retaining wall 22 may also include a third positioning member 225 disposed on the second surface 222. The first positioning member 223, the second positioning member 224 and the third positioning member 225 may be arranged in a triangle to define the relative position of the circuit board 23 and the surrounding retaining wall 22, which makes it easier to assemble the circuit board 23 and the sensing element 24.

[0066] For example, the circuit board 23 may include positioning holes 230, corresponding to the position of the third positioning member 225. When the circuit board 23 is assembled with the surrounding retaining wall 22, the positioning holes 230 can be fitted onto the third positioning member 225, improving positioning accuracy and reducing assembly difficulty. In addition, the first positioning member 223, the second positioning member 224, and the third positioning member 225 can further define the relative position of the sensing element 24 and the light guide post 21, and can also prevent the sensing element 24 from deviating from its assembly position when the electronic device 100 shakes, thereby improving the detection stability of the optical sensor module 2.

[0067] For example, circuit board 23 can be a flexible circuit board or a rigid circuit board; this embodiment of the application does not strictly limit this. Flexible circuit boards can be made of polyester materials such as polyimide.

[0068] Please see Figure 7 , Figure 7 yes Figure 4 The diagram shows a partial structural view of the optical sensor module 2 from another angle. For example, the light guide post 21 may include a first lens 213, a second lens 215, and an intermediate baffle 214. The intermediate baffle 214 is disposed between the first lens 213 and the second lens 215, and is fixedly connected to both the first lens 213 and the second lens 215. The top surfaces of the first lens 213, the second lens 215, and the intermediate baffle 214 together constitute the top surface 2111 of the first end 211.

[0069] Please refer to the following: Figure 7 and Figure 8 , Figure 8 yes Figure 7 An exploded view of the structure is shown. The light guide post 21 may also include a connecting piece 216 for fixing the first lens 213 and the second lens 215. The two ends of the connecting piece 216 may be respectively located on the periphery of the first lens 213 and the second lens 215, and may be located at any position on the periphery of the first lens 213 and the second lens 215. The sidewall of the surrounding barrier 22 may be provided with a groove 226 having the same structure as the connecting piece 216.

[0070] For example, the light guide post 21 can be engaged with the groove 226 of the surrounding barrier wall 22 by the connecting material 216 to define the relative positions of the first lens 213, the second lens 215 and the surrounding barrier wall 22.

[0071] For example, the intermediate retaining wall 214 is fixedly connected to the surrounding retaining wall 22, and the top surface of the intermediate retaining wall 214 is exposed relative to the surrounding retaining wall 22. When the first lens 213, the second lens 215, and the connecting material 216 are installed together with the intermediate retaining wall 214 and the surrounding retaining wall 22, the connecting material 216 engages with the groove 226 of the surrounding retaining wall 22 to define the positional relationship between the first lens 213, the second lens 215, and the intermediate retaining wall 214, so that the top surface of the first lens 213 and the top surface of the second lens 215 can smoothly transition with the top surface of the intermediate retaining wall 214, and the top surface 2111 of the first end 211 is smooth.

[0072] For example, the connecting material 216, the first lens 213, and the second lens 215 can be integrally formed to improve the integrity of the structure. For instance, the connecting material 216, the first lens 213, and the second lens 215 can be obtained simultaneously by casting.

[0073] For example, the intermediate retaining wall 214 and the surrounding retaining wall 22 can be integrally formed. For instance, the intermediate retaining wall 214 and the surrounding retaining wall 22 can be obtained simultaneously by casting. In other embodiments, the intermediate retaining wall 214 can also be fixedly connected to the surrounding retaining wall 22 in other ways, such as by adhesive.

[0074] For example, the connecting material 216, the first lens 213, and the second lens 215 can be integrally formed by in-mold injection molding based on the intermediate baffle 214 and the surrounding baffle 22. During in-mold injection molding, the intermediate baffle 214 and the surrounding baffle 22 serve as part of the mold, and the molten lens is directly poured into the space of the mold including the intermediate baffle 214 and the surrounding baffle 22, so that the connecting material 216 and the first lens 213, and the second lens 215 and the intermediate baffle 214 and the surrounding baffle 22 are integrally connected. In this embodiment, the light guide post 21 may also exclude the connecting material 216 to reduce material usage and save costs.

[0075] In this embodiment, the lens is integrally formed with the intermediate baffle 214 and the surrounding baffle 22 through in-mold injection molding, eliminating the step of fixing the lens to the intermediate baffle 214 and the surrounding baffle 22 with adhesives or other methods, thereby reducing adhesive gaps and simplifying the process. Moreover, there are almost no gaps between the mating surfaces formed by casting, resulting in a better appearance and sealing effect for the optical sensor module 2. In addition, the bonding strength of the mating surfaces formed by casting is higher, improving the structural stability of the optical sensor module 2.

[0076] In other embodiments, the integrally formed structure of the connecting material 216 with the first lens 213 and the second lens 215 can also be fixedly connected to the intermediate barrier 214 and the surrounding barrier 22 in other ways, such as by adhesive. The surfaces of the intermediate barrier 214 and the surrounding barrier 22 that contact the integrally formed structure can be provided with adhesive grooves. When assembling the integrally formed structure with the intermediate barrier 214 and the surrounding barrier 22, adhesive can be applied to the adhesive grooves, and after the adhesive solidifies, the assembly of the light guide post 21 and the surrounding barrier 22 is completed. Understandably, the lens can also be fixedly connected to the surrounding barrier 22 and the intermediate barrier 214 in other ways, such as by fasteners or by heat pressing, and this application does not limit this method.

[0077] For example, the first lens 213, the second lens 215 and the connecting material 216 can be made of optically transparent materials, such as optical crystals, optical glass, optical plastics, etc.

[0078] Please refer to the following: Figure 2 and Figure 9 , Figure 9 yes Figure 4 The diagram shows the internal structure of the optical sensor module 2. Figure 9The dashed lines with arrows in the middle illustrate the propagation path of the detected light in some embodiments provided in this application.

[0079] For example, the sensing element 24 may include a transmitter 241 and a receiver 242 spaced apart, corresponding to the first lens 213 and the second lens 215, respectively. In this application, the transmitter 241 can emit detection light, which is transmitted to the outside of the electronic device 100 through the first lens 213. When the detection light encounters the object to be measured, it is reflected, changing its propagation direction; the reflected detection light can enter through the second lens 215, propagate through the second lens 215, and be received by the receiver 242 to realize the detection function.

[0080] For example, the area of ​​the top surface of the first lens 213 can be smaller than the area of ​​the top surface of the second lens 215 to increase the probability of the reflected detection light entering the second lens 215, so that more detection light can be captured by the receiver 242, thereby improving the accuracy of detection.

[0081] For example, the intermediate barrier 214 can be made of an opaque material. In this application, the opposite sides of the first lens 213 and the second lens 215 are separated by the intermediate barrier 214, and the intermediate barrier 214 is made of an opaque material, which can block the detection light in the first lens 213 and the second lens 215 from propagating to the other side, avoid the problem of light crossing between the first lens 213 and the second lens 215, prevent the detection light emitted by the transmitter 241 from interfering with the detection results, improve the accuracy of the detection results, and further improve the detection performance of the optical sensor module 2.

[0082] Furthermore, the surrounding barrier 22 can also be made of an opaque material to block other light from the cavity inside the housing 1 of the electronic device 100 or ambient light from outside the electronic device 100 from entering the light guide column 21, thus affecting the detection results and further improving the accuracy of the detection and the detection performance of the optical sensor module 2. Understandably, in this application, the opaque material can be a material with low light transmittance, and is not strictly limited to having zero light transmittance.

[0083] Please see Figure 10 , Figure 10 yes Figure 8 A schematic diagram of the partial structure shown. Figure 10 The dashed lines with arrows in the figure illustrate the propagation path of the detection light in the feedstock 216 in some embodiments provided in this application. It is understood that the detection light can propagate in any direction in the feedstock 216. The dashed lines with arrows in the figure illustrate one of the propagation directions and do not indicate or imply that the propagation of the detection light must have a specific direction, and therefore should not be construed as a limitation of this application.

[0084] For example, the first lens 213 and the second lens 215 can be integrally molded using a single-gate injection molding method. This involves pouring molten liquid material into the mold from a single gate, forming two lenses in one step, reducing process steps and improving production efficiency. In this embodiment, the first lens 213 and the second lens 215, which are spaced apart, are injection molded through a single gate, thus requiring a connecting material 216 to link the two lenses. Although the detection light can propagate from one lens to the other through the connecting material 216, causing light crosstalk, the detection light undergoes multiple reflections and refractions within the connecting material 216, thereby reducing the propagation of light between the two lenses, mitigating light crosstalk, and improving detection quality.

[0085] Please refer to the following: Figure 10 and Figure 11 , Figure 11 yes Figure 10 The diagram shown is a schematic representation of the structure in some other embodiments. For example, the connecting material 216 can be employed as follows: Figure 10 The non-straight-through structure shown can also be adopted as follows: Figure 11 The straight-through structure shown.

[0086] For example, the connecting material 216 may include two fixedly connected segments and an intermediate segment. The two connecting segments are fixedly connected to the first lens 213 and the second lens 215, respectively, and the intermediate segment is located between the two connecting segments. The intermediate segment of the straight-through structure is straight, while the intermediate segment of the non-straight-through structure is zigzag, i.e., there is a bend. Therefore, in this embodiment, the light propagation path in the connecting material 216 of the straight-through structure is short, and the light propagates easily between the two lenses. However, during the casting process, the liquid material can flow more smoothly from one lens to another, improving the yield and production efficiency. In addition, the light propagation path in the connecting material 216 of the non-straight-through structure is long, and it can undergo more reflections and refractions at the bends of the connecting material 216, thereby reducing the propagation of light between the two lenses, reducing light crosstalk, and improving the detection performance of the optical sensor module 2.

[0087] Please refer to the following: Figure 12 and Figure 13 , Figure 12 yes Figure 8 The schematic diagram of a portion of the structure of the optical sensor module 2 shown in some other embodiments is shown. Figure 13 yes Figure 12 A schematic diagram of part of the structure of the optical sensor module 2 shown.

[0088] For example, the light guide post 21 may also include a first gate 217 fixedly connected to the periphery of the first lens 213 and a second gate 218 fixedly connected to the periphery of the second lens 215. For example, the first gate 217 and the second gate 218 may be respectively disposed on the same side of the first lens 213 and the second lens 215.

[0089] For example, the first lens 213 and the second lens 215 can be manufactured by a dual-gate injection molding method, that is, the molten liquid material is poured into the mold from two gates, and the two lenses are cast simultaneously from the two gates.

[0090] In this embodiment, the first lens 213 and the second lens 215 may not be connected by a connecting material 216. That is, the first lens 213 and the second lens 215 are independent of each other, and there is no transmission channel for the detection light between the two lenses. This effectively solves the problem of light leakage between the two lenses and improves the detection effect of the optical sensor module 2.

[0091] Correspondingly, the surrounding retaining wall 22 may also have grooves matching the shape of the gate at corresponding positions. When the first lens 213, the second lens 215 and the surrounding retaining wall 22 are assembled together, the first gate 217 and the second gate 218 can cooperate with the grooves to limit the relative positions of the first lens 213, the second lens 215 and the surrounding retaining wall 22, thereby reducing assembly difficulty and improving efficiency.

[0092] Please see Figure 14 , Figure 14 yes Figure 13 The diagram shown is a schematic representation of the structure in other embodiments. Exemplarily, the first gate 217 and the second gate 218 may also be located on opposite sides of the first lens 213 and the second lens 215, respectively. It is understood that the gates can be located at any position around the lens, and this embodiment does not limit this.

[0093] Please refer to the following: Figure 13 and Figure 14 For example, the light guide post 21 may also be without the first gate 217 and / or the second gate 218, so as to avoid the detection light from being emitted from the gate and affecting the detection effect of the optical sensor module 2.

[0094] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Where there is no conflict, the embodiments and features in the embodiments of this application can be combined with each other. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An electronic device, characterized in that, The device includes a housing and an optical sensor module. The optical sensor is fixedly connected to the housing. The optical sensor module includes a light guide post and a surrounding baffle wall. The light guide post is fixedly connected to the surrounding baffle wall. A first end of the light guide post protrudes relative to a first surface of the surrounding baffle wall. The first end includes a top surface and a side surface. The side surface of the first end surrounds the top surface of the first end and is exposed relative to the first surface of the surrounding baffle wall. The housing has a through hole and an inner sidewall. The first end is located in the through hole, the top surface of the first end is exposed relative to the housing, and the side surface of the first end faces the hole wall of the through hole. The surrounding retaining wall is located inside the housing, and the top surface of the surrounding retaining wall is fixedly connected to the inner sidewall of the housing. The light guide post includes a first lens, a second lens, and an intermediate barrier wall fixedly connected to the surrounding barrier wall. The intermediate barrier wall is disposed between the first lens and the second lens and is fixedly connected to the first lens and the second lens respectively. The top surface of the first lens, the top surface of the intermediate barrier wall, and the top surface of the second lens together constitute the top surface of the first end. The intermediate barrier wall is made of an opaque material. The first lens and the second lens are integrally formed by in-mold injection molding based on the surrounding retaining wall and the intermediate retaining wall. Part of the side of the first lens is joined to the intermediate retaining wall and another part of the side is joined to the surrounding retaining wall. Part of the side of the second lens is joined to the intermediate retaining wall and another part of the side is joined to the surrounding retaining wall.

2. The electronic device according to claim 1, characterized in that, The outer surface of the optical sensor smoothly transitions to the outer surface of the housing, and the top surface of the first end is the outer surface of the optical sensor.

3. The electronic device according to claim 1, characterized in that, The surrounding retaining wall and the middle retaining wall are integrally formed structures.

4. The electronic device according to any one of claims 1 to 3, characterized in that, The light guide post also includes a connecting material, which is fixedly connected to the first lens and the second lens. The connecting material, the first lens, and the second lens are integrally formed.

5. The electronic device according to claim 4, characterized in that, The connecting material can be a straight-through structure or a non-straight-through structure.

6. The electronic device according to any one of claims 1 to 3, characterized in that, The light guide post also includes a first gate fixedly connected to the periphery of the first lens and a second gate fixedly connected to the periphery of the second lens.

7. The electronic device according to any one of claims 1 to 3, characterized in that, The area of ​​the top surface of the first lens is smaller than the area of ​​the top surface of the second lens.

8. The electronic device according to any one of claims 1 to 3, characterized in that, The optical sensor module further includes a circuit board and a sensing element fixedly connected to the circuit board. The light guide column includes a second end opposite to the first end. The second end and the surrounding retaining wall enclose a receiving groove. The sensing element is located in the receiving groove. The periphery of the circuit board is fixedly connected to the second surface of the surrounding retaining wall. The second surface is disposed opposite to the first surface.

9. The electronic device according to claim 8, characterized in that, The sensing element includes a transmitter and a receiver spaced apart. The transmitter is positioned corresponding to the first lens and is used to emit detection light into the first lens. The receiver is positioned corresponding to the second lens and is used to receive the detection light reflected by the object under test through the second lens.

10. An optical sensor module, used in electronic devices, characterized in that, The electronic device includes a housing having a through hole and an inner sidewall; the optical sensor includes a light guide post and a surrounding baffle wall surrounding the light guide post, the light guide post being fixedly connected to the surrounding baffle wall, a first end of the light guide post protruding relative to a first surface of the surrounding baffle wall, the first end having a top surface and a side surface, the side surface of the first end surrounding the top surface of the first end and exposed relative to the surrounding baffle wall; the first end is used to be embedded in the through hole, and the top surface of the surrounding baffle wall is used to be fixedly connected to the inner sidewall of the housing; The light guide post includes a first lens, a second lens, and an intermediate barrier wall fixedly connected to the surrounding barrier wall. The intermediate barrier wall is disposed between the first lens and the second lens and is fixedly connected to the first lens and the second lens respectively. The top surface of the first lens, the top surface of the intermediate barrier wall, and the top surface of the second lens together constitute the top surface of the first end. The intermediate barrier wall is made of an opaque material. The first lens and the second lens are integrally formed by in-mold injection molding based on the surrounding retaining wall and the intermediate retaining wall. Part of the side of the first lens is joined to the intermediate retaining wall and another part of the side is joined to the surrounding retaining wall. Part of the side of the second lens is joined to the intermediate retaining wall and another part of the side is joined to the surrounding retaining wall.

11. The optical sensor module according to claim 10, characterized in that, The surrounding retaining wall and the middle retaining wall are integrally formed structures.

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