Prism module, camera device and electronic equipment

Abstract

The invention provides a prism module, a camera device and electronic equipment, the prism module comprises a prism and a support, the prism is provided with a top surface and a bottom surface which are arranged back to back, two first side surfaces and two second side surfaces, and the two first side surfaces are arranged back to back and obliquely, so that in the direction from the top surface to the bottom surface, the two first side surfaces are opposite to each other. The distance between the two first side faces is gradually reduced, and the two second side faces are arranged back to back and are arranged between the two first side faces. The support comprises two first side walls which are oppositely arranged and two second side walls which are oppositely arranged, the two second side walls are arranged between the two first side walls, the prism is fixed in the support, the first side walls correspond to the first side surfaces, the second side walls correspond to the second side surfaces, and the sum of the distances from the outer side surfaces of the two second side walls to the corresponding second side surfaces is 1-3mm. According to the invention, the transverse size of the prism module can be reduced, the miniaturization of the prism module is realized, more space is reserved for other parts, and the design difficulty and cost are reduced.

Description

Technical Field

[0001] This application belongs to the technical field of cameras, and particularly relates to a prism module, a camera device, and an electronic device. Background Art

[0002] In a ship-type long-focus camera module, a prism usually needs to be assembled in a bracket to ensure the optical path of the lens, the prism, and the sensor. However, currently, when the prism is fixed to the bracket, the size of the bracket is relatively large, which is not conducive to miniaturization. Summary of the Invention

[0003] In view of this, in the first aspect of this application, a prism module is provided, and the prism module includes:

[0004] A prism having a top surface and a bottom surface arranged opposite to each other, and two first side surfaces and two second side surfaces provided between the top surface and the bottom surface. The top surface is used to be close to the lens assembly and the chip assembly. The two first side surfaces are arranged opposite to each other and obliquely, such that in the direction from the top surface to the bottom surface, the distance between the two first side surfaces gradually decreases. The two second side surfaces are arranged opposite to each other and are provided between the two first side surfaces;

[0005] A bracket including two first side walls arranged opposite to each other and two second side walls arranged opposite to each other. The two second side walls are provided between the two first side walls. The prism is fixed in the bracket, and the first side walls correspond to the first side surfaces, and the second side walls correspond to the second side surfaces. The sum of the distances from the outer side surfaces of the two second side walls to the corresponding second side surfaces is 1 mm - 3 mm.

[0006] In the second aspect of this application, a camera device is provided, and the camera device includes a lens assembly, a chip assembly, and a prism module as provided in the first aspect of this application. Both the lens assembly and the chip assembly are installed on the bracket in the prism module and are arranged close to the top surface of the prism in the prism module.

[0007] In the third aspect of this application, an electronic device is provided, and the electronic device includes the camera device as provided in the second aspect of this application.

[0008] The prism module, camera device, and electronic device provided by the present application. The first sidewall is provided corresponding to the inclined first side surface of the prism, and the second sidewall is provided corresponding to the second side surface of the prism. The arrangement direction of the two second sidewalls can be referred to as the lateral direction of the prism module. In the related art, since a plurality of metal inserts are provided on each second sidewall, due to the forming process limitations of the metal inserts themselves, the lateral dimension of the second sidewall is relatively large. Also, in the related art, the second sidewall and the second side surface are bonded by dispensing, so a relatively large dispensing gap needs to be reserved between the second sidewall and the second side surface, which also increases the lateral dimension, resulting in the sum of the distances from one second sidewall to the corresponding second side surface and from the other second sidewall to the corresponding other second side surface being 3.4 mm.

[0009] The present application can make the sum of the distances from one second sidewall to the corresponding second side surface and from the other second sidewall to the corresponding other second side surface be 1 mm - 3 mm, thus being less than 3.4 mm in the related art. In summary, when the distance between the two second side surfaces in the prism is fixed, the present application can reduce the lateral dimension of the prism module, realize the miniaturization of the prism module, thereby reserving more space for other components and reducing the design difficulty and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments of the present application will be described below.

[0011] Figure 1 It is a schematic three-dimensional structure diagram of a prism module in an embodiment of the present application.

[0012] Figure 2 For Figure 1 the exploded view of the prism module shown.

[0013] Figure 3 For Figure 1 the top view of the prism module shown.

[0014] Figure 4 It is a front view of a camera device in an embodiment of the present application.

[0015] Figure 5 For Figure 1 the cross-sectional schematic diagram of the prism module shown.

[0016] Figure 6 It is for Figure 1 the cross-sectional schematic diagram of the prism module shown in another embodiment of the present application.

[0017] Figure 7 It is for Figure 1 the cross-sectional schematic diagram of the prism module shown in yet another embodiment of the present application.

[0018] Figure 8 The Figure 7 schematic cross-sectional view when the prism module shown is mated with the circuit board module.

[0019] Figure 9 Schematic diagram of the conductive member in the prism module in another embodiment of the present application.

[0020] Figure 10 Schematic cross-sectional view of one of the second side walls in the prism module in one embodiment of the present application.

[0021] Figure 11 Schematic cross-sectional view of the conductive member in one embodiment of the present application.

[0022] Figure 12 Schematic perspective view of the electronic device in one embodiment of the present application.

[0023] Marking description:

[0024] Prism module - 1, camera device - 2, electronic device - 3, prism - 10, top surface - 101, bottom surface - 102, first side surface - 103, second side surface - 104, calibration space - 105, bracket - 20, accommodation space - 200, first side wall - 201, second side wall - 202, accommodation groove - 21, lens assembly - 30, motor - 31, chip assembly - 40, first bonding member - 50, circuit board module - 60, opening - 600, conductive member - 70, conductive connection member - 70a, conductive portion - 71, insulating portion - 72, substrate - 73, second bonding member - 80. Detailed implementation manners

[0025] The following are the preferred embodiments of the present application. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present application.

[0026] In view of this, to solve the above problems, the present application provides a prism module. Please refer to Figures 1-6 , Figure 1 Schematic perspective view of the prism module in one embodiment of the present application. Figure 2 The Figure 1 exploded view of the prism module shown. Figure 3 The Figure 1 top view of the prism module shown. Figure 4 Front view of the camera device in one embodiment of the present application. Figure 5 The Figure 1 schematic cross-sectional view of the prism module shown. Figure 6 In another embodiment of the present applicationFigure 1 Schematic cross-sectional view of the prism module shown

[0027] The prism module 1 provided in this embodiment includes a prism 10 and a bracket 20. The prism 10 has a top surface 101 and a bottom surface 102 arranged opposite to each other, and two first side surfaces 103 and two second side surfaces 104 provided between the top surface 101 and the bottom surface 102. The top surface 101 is used to be close to the lens assembly 30 and the chip assembly 40. The two first side surfaces 103 are arranged opposite to each other and inclined, so that in the direction from the top surface 101 to the bottom surface 102, the distance between the two first side surfaces 103 gradually decreases. The two second side surfaces 104 are arranged opposite to each other and are provided between the two first side surfaces 103. The bracket 20 includes two first side walls 201 arranged opposite to each other and two second side walls 202 arranged opposite to each other. The two second side walls 202 are provided between the two first side walls 201. The prism 10 is fixed in the bracket 20, and the first side walls 201 correspond to the first side surfaces 103, and the second side walls 202 correspond to the second side surfaces 104. The sum of the distances from the outer side surfaces of the two second side walls 202 to the corresponding second side surfaces 104 is 1 mm - 3 mm.

[0028] The prism module 1 is one of the important components in the camera module. The prism module 1 mainly includes a prism 10 and a bracket 20. The prism 10 is mainly used to change the optical path, thereby changing the arrangement mode of the lens and the chip. The bracket 20 is mainly used to install and fix the prism 10, and the bracket 20 can also be used to install other components in the camera module, such as the lens assembly 30 and the chip (COB) assembly.

[0029] In this embodiment, the cross-sectional shape of the prism 10 is an inverted isosceles trapezoid. The prism 10 has a top surface 101 and a bottom surface 102 arranged opposite to each other. The upper top surface 101 is the large bottom wall of the isosceles trapezoid, and the lower bottom surface 102 is the small top wall of the isosceles trapezoid. Subsequently, the lens assembly 30 and the chip assembly 40 can be arranged close to the top surface 101. In addition to the upper and lower two surfaces, the prism 10 may also include the peripheral side surfaces. In this embodiment, only four side surfaces are schematically illustrated, and at this time, the top surface 101 is a quadrilateral. The two first side surfaces 103 are arranged opposite to each other and are bent and connected between the top surface 101 and the bottom surface 102, and the two first side surfaces 103 are inclined. From the top surface 101 to the bottom surface 102, the two first side surfaces 103 approach each other, so that the distance between the two first side surfaces 103 gradually decreases. At this time, the two first side surfaces 103 are the two waists of the isosceles trapezoid. With this setting, after the light enters through the top surface 101 of the lens assembly 30 arranged on the top surface 101, it is transmitted to one first side surface 103 through the top surface 101. This first side surface 103 reflects the light to the other first side surface 103, and the other first side surface 103 then reflects the light out from the top surface 101, so as to be received by the chip assembly 40.

[0030] In addition to the two first side surfaces 103, it may further include two second side surfaces 104. The two second side surfaces 104 are bent and connected between the top surface 101 and the bottom surface 102, and at the same time are bent and connected between the two first side surfaces 103. The two second side surfaces 104 are substantially perpendicular to the top surface 101 and the bottom surface 102. In other words, the two second side surfaces 104 may be perpendicular to the top surface 101 and the bottom surface 102, or may form a certain angle with the top surface 101 and the bottom surface 102. This embodiment does not limit it.

[0031] The two first side surfaces 103 and the two second side surfaces 104 together constitute the side surfaces of the prism 10. Therefore, in order to better assemble the prism 10, the bracket 20 also correspondingly has four side walls, namely two relatively arranged first side walls 201 and two relatively arranged second side walls 202. The two second side walls 202 are arranged between the two first side walls 201 and are bent to connect the two first side walls 201. At this time, when arranged in a circumferential direction, it may be the first side wall 201, the second side wall 202, the first side wall 201, and the second side wall 202 in sequence. The two first side walls 201 and the two second side walls 202 enclose a receiving space 200. The prism 10 can be arranged in the receiving space 200. At this time, the first side wall 201 can correspond to the first side surface 103, and the second side wall 202 can correspond to the second side surface 104. Since the arrangement direction of the two second side walls 202 is the same as the arrangement direction of the two second side surfaces 104, in this embodiment and the following text, the arrangement direction of the two second side walls 202 can be understood as the lateral direction of the bracket 20, the prism 10, and even the prism module 1, the arrangement direction of the two first side walls 201 can be understood as the vertical direction of the bracket 20, the prism 10, and even the prism module 1, and the direction from the top surface 101 to the bottom surface 102 can be understood as the depth direction of the bracket 20, the prism 10, and even the prism module 1.

[0032] In the related art, the shape of the prism 10 is the same as that of the present application, and it also has a top surface 101, a bottom surface 102, two inclined first side surfaces 103 and two second side surfaces 104. The bracket 20 also has two first side walls 201 and two second side walls 202. However, in the related art, first, glue is used to fix the prism 10 to the bracket 20 between the inner side surface of the second side wall 202 and the second side surface 104. Therefore, sufficient glue application space needs to be provided in advance between the inner side surface of the second side wall 202 and the second side surface 104 for glue application. The width of the glue application in the lateral direction is usually 0.1 mm.

[0033] In addition, the bracket 20 is also provided with metal inserts to connect the motor 31 in the lens module 30 and the chip module 40, so as to use the chip module 40 to control the motor 31 to move the lens and achieve the function of anti-shake. The metal inserts extend from a first side wall 201 through a second side wall 202 to another first side wall 201, so as to facilitate the connection between the motor 31 and the chip module 40. And there are usually multiple metal inserts. Only 7 metal inserts are schematically illustrated in this embodiment and the following text. 4 of the 7 metal inserts extend from a first side wall 201 through a second side wall 202 to another first side wall 201, and the remaining 3 metal inserts extend from a first side wall 201 through another second side wall 202 to another first side wall 201, so that the 7 metal inserts can be better arranged. Due to the limitation of the metal insert forming process, the minimum width of a single metal insert advancing in the horizontal direction is 0.2 mm, and due to the limitation of the assembly process, the minimum distance between two adjacent metal inserts needs to be 0.2 mm. Thus, the calculated minimum width of the second side wall 202 with 4 metal inserts is 1.8 mm, and the minimum width of the second side wall 202 with 3 metal inserts is 1.4 mm.

[0034] Based on this, the sum of the distance from the outer side surface of a second side wall 202 to the corresponding second side surface 104 and the distance from the outer side surface of a second side wall 202 to the corresponding second side surface 104 is 1.8 mm + 0.1 mm + 1.4 mm + 0.1 mm = 3.4 mm.

[0035] In this embodiment, the sum of the distance between a second side wall 202 and the corresponding second side surface 104 and the distance between the other second side wall 202 and the corresponding other second side surface 104 can be 1 mm - 3 mm. In other words, in this embodiment, the sum of the distances from the outer side surfaces of the two second side walls 202 to the corresponding second side surface 104 can be 1 mm - 3 mm in various ways, so as to be less than 3.4 mm in the related art.

[0036] In summary, when the distance between the two second side surfaces 104 in the prism 10 is fixed, that is, when the horizontal dimension of the prism 10 remains unchanged, this embodiment can reduce the horizontal dimension of the prism module 1, realize the miniaturization of the prism module 1, thereby reserving more space for other components in the electronic device 3 and reducing the design difficulty and cost.

[0037] Optionally, the sum of the distances from the outer side surfaces of the two second side walls 202 to the corresponding second side surface 104 can be 1 mm, 1.5 mm, 2 mm, 2.5 mm, or 3 mm.

[0038] Optionally, the inner side surface of the first side wall 201 is arranged parallel to the first side surface 103, and the inner side surface of the second side wall 202 is arranged parallel to the second side surface 104, which is more convenient for the assembly of the prism 10. For example, the inner side surface of the first side wall 201 is also inclined like the first side surface 103, and the inner side surface of the second side wall 202 is also substantially vertical like the second side surface 104.

[0039] As can be seen from the related art, the relatively large lateral dimension of the prism module 1 is mainly due to two main reasons: First, the width of the second side wall 202 is relatively large; second, the distance between the inner side surface of the second side wall 202 and the second side surface 104 of the prism 10 is relatively large. Therefore, the present application has made improvements respectively for the above two main reasons, and will be introduced in detail in turn below.

[0040] Please refer to Figures 5-6 , in this embodiment, there is a calibration space 105 between the inner side surface of the first side wall 201 and the first side surface 103. The prism module 1 further includes a first bonding member 50. The first bonding member 50 is disposed in the calibration space 105 and bonded between the inner side surface of the first side wall 201 and the first side surface 103; the inner side surface of the second side wall 202 is in contact with or has a gap with the second side surface 104.

[0041] In this embodiment, there may be a calibration space 105 between the inner side surface of the first side wall 201 and the first side surface 103. In other words, the inner side surface of the first side wall 201 is not in contact with the first side surface 103, and there is a certain gap between the inner side surface of the first side wall 201 and the first side surface 103, and this gap forms the calibration space 105. By adding the first bonding member 50 and disposing the first bonding member 50 in the calibration space 105, with one end bonded to the inner side surface of the first side wall 201 and the other end bonded to the first side surface 103, the prism 10 is fixed in the bracket 20 through the first bonding member 50. And the first bonding member 50 bonded to the first side surface 103 does not affect the reflection performance of the first side surface 103.

[0042] Since the present application uses the first side wall 201 and the first side surface 103 for fixing, a bonding member may not be provided between the inner side surface of the second side wall 202 and the second side surface 104 in the related art. At this time, the distance between the inner side surface of the second side wall 202 and the second side surface 104 can be reduced, thereby achieving the purpose of reducing the lateral dimension of the prism module 1.

[0043] For example, the inner side surface of the second side wall 202 can be abutted against the second side surface 104 to completely eliminate the distance between the inner side surface of the second side wall 202 and the second side surface 104, further reducing the lateral dimension of the prism module 1. Or there is still a gap between the inner side surface of the second side wall 202 and the second side surface 104. However, since there is no need to provide an adhesive member, the gap at this time can be smaller than the gap in the related art. This gap can be used for assembly tolerances or to prevent the inner side surface of the second side wall 202 of the bracket 20 from directly contacting the second side surface 104 and squeezing the prism 10, causing damage to the prism 10. This embodiment only schematically illustrates the setting of a gap between the inner side surface of the second side wall 202 and the second side surface 104.

[0044] Optionally, in this embodiment, the distance between the inner side surface of the second side wall 202 and the second side surface 104 can be 0.01 mm - 0.09 mm, thus being smaller than 0.1 mm in the related art, achieving the purpose of reducing the lateral dimension of the prism module 1. This embodiment and the following text only schematically illustrate the case where the distance between the inner side surface of the second side wall 202 and the second side surface 104 is 0.05 mm. It should be noted that the distance of 0.05 mm between the inner side surface of the second side wall 202 and the second side surface 104 mentioned above means that the distance between the inner side surface of one second side wall 202 and one second side surface 104 on one side is 0.05 mm, and the distance between the inner side surface of the other second side wall 202 and the other second side surface 104 on the other side is also 0.05 mm. Therefore, the total reduction in the lateral dimension of the prism module 1 is 0.1 mm.

[0045] Further optionally, the distance between the inner side surface of the second side wall 202 and the second side surface 104 can be 0.01 mm, 0.02 mm, 0.03 mm, 0.04 mm, 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm.

[0046] It should be noted that the calibration space 105 can be a space artificially added for setting the first bonding member 50. Alternatively, the calibration space 105 is not a space added for setting the first bonding member 50, but originally exists, and this embodiment only utilizes the originally existing space. Specifically, when the prism 10 is just installed in the bracket 20, it is necessary to first calibrate the effective display area (AA area). During the calibration process, the prism 10 needs to move up and down along the direction between the top surface 101 and the bottom surface 102. Therefore, in order to enable the prism 10 to move up and down, a certain gap needs to be reserved originally between the first side surface 103 of the prism 10 and the inner side surface of the first side wall 201. And in order to enable the prism 10 to move the maximum distance, the originally reserved gap between the first side surface 103 of the prism 10 and the inner side surface of the first side wall 201 needs to be greater than the maximum distance that the prism 10 can move up and down, so that even after the prism 10 moves the maximum distance up and down, there is still a remaining gap at this time, and this remaining gap can be called the calibration space 105. In other words, in this embodiment, after the calibration of the prism 10 is completed, the remaining calibration space 105 is utilized to set the first bonding member 50, so as to bond and fix the prism 10 and the bracket 20 by using the first bonding member 50. Therefore, the calibration space 105 not only has a calibration function but also can provide a setting space for the first bonding member 50.

[0047] In this embodiment, the size of the opening 600 of the calibration space 105 near the top surface 101 is larger than the size of the opening 600 of the calibration space 105 near the bottom surface 102. Since the size of the opening 600 at the top of the calibration space 105 is larger than the size of the opening 600 at the bottom, it is convenient to pour the liquid bonding member from the top during glue filling. Subsequently, the liquid bonding member can flow downward along the inclined surface of the calibration space 105 due to gravity, and after the liquid bonding member solidifies, it is deformed into the first bonding member 50.

[0048] In summary, by making the size of the opening 600 of the calibration space 105 near the top surface 101 larger than the size of the opening 600 of the calibration space 105 near the bottom surface 102, it is convenient to pour glue into the calibration space 105.

[0049] In this embodiment, the surface roughness of the first side surface 103 is smaller than the surface roughness of the second side surface 104. Since the first side surface 103 needs to reflect light, the first side surface 103 needs to be relatively smooth, and at this time the surface roughness of the first side surface 103 is smaller. Similarly, due to optical and other reasons, the second side surface 104 needs to be relatively rough, and at this time the surface roughness of the second side surface 104 is larger. Therefore, the surface roughness of the first side surface 103 is smaller than the surface roughness of the second side surface 104.

[0050] In the related art, the bonding member is bonded to the inner side surface of the second side wall 202 and the second side surface 104. Since the surface roughness of the second side surface 104 is relatively large, that is, the second side surface 104 is a frosted surface, there are relatively many surface defects. If the prism 10 is fixed by dispensing glue on the second side surface 104, when the reliability drops, the second side wall 202 of the bracket 20 will squeeze the bonding member, thereby indirectly causing a relatively large force on the second side surface 104 of the prism 10, and the risk of the prism 10 cracking is relatively high.

[0051] However, in this embodiment, the first side surface 103 with a relatively small surface roughness is used to bond the first bonding member 50. At this time, the first side surface 103 is a relatively smooth polished surface with fewer surface defects. By dispensing glue on the first side surface 103 to fix the prism 10, the problem of the prism 10 cracking during reliability drop can be solved.

[0052] Please refer to Figures 7-8 , Figure 7 in another embodiment of the present application Figure 1 for a cross-sectional schematic diagram of the prism module shown. Figure 8 is Figure 7 a cross-sectional schematic diagram of the prism module and the circuit board module in cooperation. In this embodiment, the second side wall 202 is only provided corresponding to the second side surface 104 near the top surface 101, so that in the arrangement direction of the two second side walls 202, only the prism 10 penetrates the circuit board module 60, and the second side wall 202 abuts against the circuit board module 60.

[0053] In the related art, since it is necessary to provide a bonding member between the second side wall 202 and the second side surface 104 to fix the prism 10, the depth of the second side wall 202 in the depth direction is relatively high, at least as high as the depth of the second side, so that the bonding member can flow down along the gap between the second side wall 202 and the second side surface 104.

[0054] However, in this embodiment, since the bonding position is changed and the first side wall 201 and the first side surface 103 are used for bonding, the second side wall 202 does not need to be set so deep. It is only necessary to make the second side wall 202 only correspond to the second side surface 104 near the top surface 101, that is, the second side wall 202 is only provided at the top, and the second side wall 202 is not provided at the bottom. Therefore, the bottom of the second side surface 104 in the prism 10 can be exposed. Thus, the second side wall 202 is only provided at the top surface 101 of the second side surface 104, and the second side wall 202 can be used to realize the limiting function. Since a conductive structure needs to be provided on the second side wall 202 subsequently, the second side wall 202 at the top needs to be retained, and the second side wall 202 cannot be completely cancelled.

[0055] Therefore, above the prism module 1 in this embodiment, it can be understood that the reduction in the lateral dimension is the gap between the second side wall 202 and the second side surface 104. The reduction in the lateral dimension below the prism module 1 is the gap between the second side wall 202 and the second side surface 104, as well as the lateral width at the lower part of the second side wall 202. For example, in the related art, the gap between the second side wall 202 and the second side surface 104 is 0.1 mm, and the lateral width at the lower part of the second side wall 202 is 1.3 mm. In this embodiment, the gap between the second side wall 202 and the second side surface 104 is 0.05 m. Therefore, the reduction in the lateral dimension for the top of the prism module 1 is 0.1 mm, and the reduction in the lateral dimension for the top of the prism module 1 is 2.8 mm. Therefore, the amount of reduction in the lateral dimension is different for different positions. As for the depth direction, it can be reduced by 1.9 mm.

[0056] In addition, since the second side walls 202 are only provided at the top, the second side walls 202 are not provided at the remaining positions. And since the subsequent circuit board module 60 needs to have an opening 600 and the prism module 1 needs to penetrate the circuit board module 60 subsequently, in the arrangement direction of the two second side walls 202, that is, in the lateral direction, only the prism 10 needs to penetrate the circuit board module 60. Therefore, the size of the opening 600 opened on the circuit board module 60 can be reduced, thereby saving more space for the circuit board and reducing the layout and cost of the components on the circuit board. And when the prism 10 penetrates the circuit board module 60, the second side wall 202 can abut against the circuit board module 60, and the second side wall 202 is used to achieve fixation.

[0057] Please refer to Figure 4 and Figure 9 , Figure 9 which is a schematic diagram of the conductive members in the prism module in another embodiment of the present application. In this embodiment, the lens assembly 30 includes a lens and a motor 31 for mounting the lens. The motor 31 is used to drive the lens to move. The prism module 1 further includes a plurality of conductive members 70. Each conductive member 70 extends from one first side wall 201 through the second side wall 202 to the other first side wall 201. The plurality of conductive members 70 on one first side wall 201 are used to electrically connect the motor 31, and the plurality of conductive members 70 on the other first side wall 201 are used to electrically connect the chip assembly 40; along the direction of the two second side walls 202, the width of each conductive member 70 is 0.01 mm - 0.05 mm, and the distance between two adjacent conductive members 70 is 0.1 mm - 0.15 mm.

[0058] As mentioned above, the lens module 30 includes a lens and a motor 31. The motor 31 can drive the lens to move, so as to achieve the purpose of adjusting the distance. Since a chip component 40 is required to control the movement of the motor, the prism module 1 may further include a plurality of conductive members 70. The plurality of conductive members 70 all extend from one first side wall 201, pass through the second side wall 202, and extend to another first side wall 201. In this embodiment and the following text, only 7 conductive members 70 are used for illustrative purposes. Among them, 4 conductive members 70 extend from one first side wall 201 through one second side wall 202 to another first side wall 201, and 3 conductive members 70 extend from one first side wall 201 through another second side wall 202 to another first side wall 201. One end of the 7 conductive members 70 on one first side wall 201 is used for electrically connecting the motor 31, and the other end of the 7 conductive members 70 on another first side wall 201 is used for electrically connecting the chip component 40.

[0059] In the related art, a metal insert is used for electrically connecting the motor 31 and the chip component 40. Due to the limitation of the metal insert forming process, the minimum width of a single metal insert is 0.2 mm; and due to the limitation of the assembly process, the minimum distance between adjacent two metal inserts is 0.2 mm. Calculated accordingly, the minimum width of the second side wall 202 provided with 4 metal inserts is 1.8 mm, and the minimum width of the second side wall 202 provided with 3 metal inserts is 1.4 mm, resulting in a relatively large lateral gear of the bracket 20.

[0060] In this embodiment, other types of conductive members 70 can be used. For example, the conductive member 70 includes but is not limited to etched copper. The width of the conductive member 70 can be only 0.01 mm - 0.05 mm, which is much smaller than the minimum width of 0.2 mm of a single metal insert. In this embodiment, only the width of the conductive member 70 being 0.035 mm is used for illustrative purposes. And the distance between two adjacent conductive members 70 is 0.1 mm - 0.15 mm, which is also much smaller than the minimum distance of 0.2 mm between adjacent two metal inserts. In this embodiment, only the distance between two adjacent conductive members 70 being 0.12 mm is used for illustrative purposes. Calculated according to the distribution mode of 7 metal inserts, in this embodiment, the minimum width of the second side wall 202 provided with 4 conductive members 70 is 0.74 mm, and the minimum width of the second side wall 202 provided with 3 conductive members 70 is 0.585 mm. The sum of the widths of the two second side walls 202 is 1.325 mm. Adding the distance of 0.05 mm from the inner side wall of each second side wall 202 to the second side wall 202, the sum of the distances from the outer side surfaces of the two second side walls 202 to the corresponding second side surface 104 can be obtained as 1.425 mm, which is much smaller than 3.4 mm in the related art, and can be specifically reduced by 1.975 mm.

[0061] Optionally, the width of each conductive member 70 may be 0.01 mm, 0.02 mm, 0.03 mm, 0.04 mm, or 0.05 mm.

[0062] Optionally, the distance between two adjacent conductive members 70 may be 0.1 mm, 0.11 mm, 0.12 mm, 0.13 mm, 0.14 mm, or 0.15 mm.

[0063] Please also refer to Figures 9-10 , Figure 10 , which is a schematic cross-sectional view of a second side wall in a prism module according to an embodiment of the present application. In this embodiment, the prism module 1 further includes a plurality of second bonding members 80. A plurality of receiving grooves 21 are formed in both of the two first side walls 201 and the two second side walls 202. Each conductive member 70 and each second bonding member 80 are disposed in one of the receiving grooves 21. The second bonding member 80 covers the conductive member 70 and fixes the conductive member 70 to the bracket 20, and the second bonding member 80 has insulation properties.

[0064] In the related art, due to the molding process problems, the metal inserts are formed by stamping, and then a plurality of metal inserts are formed into a whole and fixed by a primary injection molding. And due to process limitations, the ejector pin holes need to be exposed outside during the primary injection molding, and then a secondary injection molding is performed. The secondary injection molded structure plays a role in protection and positioning. Therefore, the metal insert combined with the secondary injection molding process requires a plurality of structural parts. With the secondary injection molding, the structure and process are complex, and it takes a long time to modify when the structure is changed. And limited by the secondary injection molding, the width of the second side wall 202 of each bracket 20 cannot be too small, and usually at least a width of 0.5 mm is required.

[0065] This embodiment adopts a new assembly process. Only a plurality of receiving grooves 21 are formed in both of the two first side walls 201 and the two second side walls 202. The extending direction of the receiving grooves 21 is the same as the extending direction of the conductive members 70. Each conductive member 70 can be disposed in one of the receiving grooves 21. Optionally, the conductive member 70 can abut against the bottom wall of the receiving groove 21. Subsequently, a plurality of second bonding members 80 are added, and each second bonding member 80 is also disposed in one of the receiving grooves 21. For example, when the conductive member 70 is disposed in the receiving groove 21, a liquid bonding member can be filled into the receiving groove 21, and after curing, the second bonding member 80 is obtained. The second bonding member 80 can cover the conductive member 70, so that the conductive member 70 is fixed to the bracket 20 by using the second bonding member 80. And since the second bonding member 80 has insulation properties, the second bonding member 80 covering the conductive member 70 can also separate the conductive member 70 from other conductive parts 71 to avoid short circuit.

[0066] In the related art, due to the molding process limitations of the metal inserts, secondary injection molding must be performed for insulation, resulting in a complex structure. In this embodiment, the second bonding member 80 can be used to achieve fixation and insulation. Therefore, the bracket 20 can be obtained by only one injection molding without secondary injection molding. The structure of the bracket 20 is relatively simple, which simplifies the structure of the bracket 20, and it is also relatively easy to modify the structure of the bracket 20 subsequently.

[0067] Optionally, the prism module 1 further includes a conductive connection member 70a. One end of the conductive connection member 70a is connected to the conductive member 70 in the receiving groove 21, and the other end of the conductive connection member 70a extends upward and protrudes from the bracket 20, and can be subsequently connected to the motor 31 and the chip component 40 to realize the electrical connection between the two. Therefore, the electrical connection between the motor 31 and the chip component 40 is achieved through the cooperation of the conductive member 70 and the conductive connection member 70a.

[0068] Please refer to Figure 11 , Figure 11 is a cross-sectional schematic diagram of the conductive member in an embodiment of the present application. In this embodiment, the conductive member 70 includes a conductive portion 71, an insulating portion 72 wrapped around the outer periphery of the conductive portion 71, and a substrate 73 carrying the insulating portion 72 and the conductive portion 71. The substrate 73 is disposed close to the bottom wall of the receiving groove 21.

[0069] The conductive member 70 is composed of a conductive portion 71, an insulating portion 72, and a substrate 73. The conductive portion 71 mainly functions to conduct electricity. The insulating portion 72 wrapped around the outer periphery of the conductive portion 71 can play a role in protecting the conductive portion 71, preventing the conductive portion 71 from coming into contact with other conductive members and causing a short circuit. The substrate 73 is mainly used to carry the insulating portion 72 and the conductive portion 71, which can improve the overall strength of the conductive member 70 and prevent the conductive member 70 from being too soft and difficult to set. And the substrate 73 is disposed downward, so that the substrate 73 is disposed close to the bottom wall.

[0070] Optionally, the substrate 73 can be abutted against the bottom wall for setting. At this time, the upper part of the conductive member 70 is all the second bonding member 80.

[0071] Further optionally, in this embodiment, the width of the receiving groove 21 is the same as the width of the conductive member 70, both being 35 μm. The depth of the receiving groove 21 is 160 μm, where the depth of the conductive member 70 is 53 μm, and the depth of the second bonding member 80 is 107 μm. The upper surface of the second bonding member 80 is flush with the upper surface of the bracket 20, which is convenient for the installation of the lens module 30 and the chip component 40. In addition, the substrate 73 in the conductive member 70 can be a titanium copper substrate 73 with a depth of 11 microns, the overall thickness of the insulating portion 72 is 42 μm, where the depth of the insulating portion 72 below the conductive portion 71 is 11 μm, the depth of the conductive portion 71 is 24 μm, and the depth of the insulating portion 72 above the conductive portion 71 is 7 μm.

[0072] Please refer to again Figure 4 Figure 4 In this embodiment, a camera device 2 is provided. The camera device 2 includes a lens assembly 30, a chip assembly 40, and a prism module 1 provided in the above embodiment of the present application. Both the lens assembly 30 and the chip assembly 40 are installed on a bracket 20 in the prism module 1 and are disposed close to the top surface 101 of the prism 10 in the prism module 1.

[0073]

[0073] The camera device 2 is mainly used in various electronic devices 3 and can perform functions such as taking pictures and shooting videos. Both the lens assembly 30 and the chip assembly 40 are installed on the upper surface of the bracket 20. As for the connection relationship between the lens assembly 30 and the chip assembly 40 and the prism 10, this embodiment does not limit it herein. It only needs to be close to the top surface 101 of the prism 10. After external light enters the lens assembly 30, it can be projected onto the top surface 101 of the prism 10 and reflected on a first side surface 103, and then reflected to another first side surface 103 and can be emitted from the other side of the top surface 101, so as to dispose the chip assembly 40 above the top surface 101.

[0074]

[0074] For the camera device 2 provided in this embodiment, by adopting the prism module 1 provided in the above embodiment of the present application, when the distance between two second side surfaces 104 in the prism 10 is fixed, that is, when the lateral dimension of the prism 10 is fixed, this embodiment can reduce the lateral dimension of the prism module 1, realize miniaturization of the prism module 1, thereby reserving more space for other components and reducing the design difficulty and cost.

[0075] Please refer to Figure 12 , Figure 12 Figure 12 is a schematic three-dimensional structure diagram of an electronic device in an embodiment of the present application. Please refer to the figure. In this embodiment, an electronic device 3 is provided. The electronic device 3 includes a camera device 2 provided in the above embodiment of the present application.

[0076]

[0076] The electronic device 3 provided in this embodiment includes but is not limited to mobile terminals such as mobile phones, tablet computers, laptop computers, palmtop computers, personal computers (PCs), personal digital assistants (PDAs), portable media players (PMPs), navigation devices, wearable devices, smart bracelets, pedometers, etc., and fixed terminals such as digital TVs, desktop computers, etc. This embodiment does not limit the types of the electronic device 3 and only uses a mobile phone as an illustrative example.

[0077] The camera device 2 can serve as the front camera or the rear camera of the electronic device 3. The camera device 2 can be installed inside the electronic device 3, and the lens module 30 is exposed to facilitate receiving external light. The chip module 40 can be electrically connected to the circuit board for image processing. For the electronic device 3 provided in this embodiment, by adopting the camera device 2 provided in the above embodiment of the present application, when the distance between the two second side surfaces 104 in the prism 10 is fixed, that is, when the lateral dimension of the prism 10 is fixed, this embodiment can reduce the lateral dimension of the prism module 1, realize the miniaturization of the prism module 1, thereby reserving more space for other components and reducing the design difficulty and cost.

[0078] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0079] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more, unless otherwise specifically defined. In addition, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0080] In the present application, unless otherwise clearly defined and limited, the terms "install", "connect", "connect", "fix", etc. should be understood in a broad sense. For example, it can be a connection, a detachable connection, or integrated. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium, and can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0081] The above has introduced in detail the content provided by the embodiments of the present application, and expounded and explained the principle and embodiments of the present application. These explanations are only used to help understand the method and its core idea of the present application. However, the content of this specification should not be construed as a limitation of the present application. Those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. These modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies.

Claims

1. A prism module, characterized in that, The prism module includes: A prism having a top surface and a bottom surface disposed opposite to each other, and two first side surfaces and two second side surfaces disposed between the top surface and the bottom surface. The top surface is used to be close to the lens assembly and the chip assembly. The two first side surfaces are disposed opposite to each other and inclined such that the distance between the two first side surfaces gradually decreases in the direction from the top surface to the bottom surface. The two second side surfaces are disposed opposite to each other and are disposed between the two first side surfaces; A bracket including two first side walls disposed opposite to each other and two second side walls disposed opposite to each other. The two second side walls are disposed between the two first side walls. The prism is fixed within the bracket, and the first side walls correspond to the first side surfaces, and the second side walls correspond to the second side surfaces. The sum of the distances from the outer side surfaces of the two second side walls to the corresponding second side surfaces is 1 mm - 3 mm.

2. The prism module according to claim 1, wherein, There is a calibration space between the inner side surface of the first side wall and the first side surface. The prism module further includes a first bonding member disposed within the calibration space and bonded between the inner side surface of the first side wall and the first side surface; the inner side surface of the second side wall is in contact or has a gap with the second side surface.

3. The prism module according to claim 2, characterized in that, The surface roughness of the first side surface is less than the surface roughness of the second side surface.

4. The prism module according to claim 2, wherein The second side wall is only disposed corresponding to the second side surface near the top surface, such that in the arrangement direction of the two second side walls, only the prism is used to penetrate the circuit board module, and the second side wall abuts against the circuit board module.

5. The prism module according to claim 2, wherein The opening size of the calibration space near the top surface is larger than the opening size of the calibration space near the bottom surface.

6. The prism module according to any one of claims 1-5, characterized in that, The lens assembly includes a lens and a motor for mounting the lens. The motor is used to drive the lens to move. The prism module further includes a plurality of conductive members. Each conductive member extends from one first side wall through the second side wall to the other first side wall. The plurality of conductive members on one first side wall are used to electrically connect the motor, and the plurality of conductive members on the other first side wall are used to electrically connect the chip assembly; In the direction of the two second side walls, the width of each conductive member is 0.01 mm - 0.05 mm, and the distance between two adjacent conductive members is 0.1 mm - 0.15 mm.

7. The prism module according to claim 6, wherein The prism module further includes a plurality of second bonding members. The two first side walls and the two second side walls are each provided with a plurality of receiving grooves. Each conductive member and each second bonding member are disposed within one receiving groove. The second bonding member covers the conductive member and fixes the conductive member to the bracket, and the second bonding member has insulation properties.

8. The prism module according to claim 7, wherein, The conductive member includes a conductive portion, an insulating portion wrapped around the outer periphery of the conductive portion, and a substrate for carrying the insulating portion and the conductive portion. The substrate is disposed close to the bottom wall of the receiving groove.

9. A camera device, characterized in that, The camera device includes a lens assembly, a chip assembly, and a prism module as described in any one of claims 1-8. The lens assembly and the chip assembly are both installed in a bracket in the prism module and are disposed close to the top surface of the prism in the prism module.

10. An electronic device, characterized in that, The electronic device includes the camera device as described in claim 9.

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