Camera modules and electronic equipment
The motor movable part drives the alignment design of the moving components and the image sensor, which solves the problem of degradation in imaging quality caused by lens offset, and achieves the improvement of lens stability and imaging quality.
Patent Information
- Application Number
- CN202011643668.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-12-31
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2040-12-31
AI Technical Summary
The lens is prone to offset, resulting in a decrease in the imaging quality of the camera module.
By setting the movable part of the motor, the moving component drives the image sensor to move, so that the image sensor is aligned with the lens, and the lens position is stabilized by using the bent plate and bracket structure to reduce the impact of offset.
It improves the stability of the lens and the imaging quality of the camera module, extends the service life, and avoids the decline in imaging quality caused by lens offset.
Smart Images

Figure CN112738378B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of electronic technology, and in particular to a camera module and electronic equipment. Background Art
[0002] Currently, most camera modules on the market use motor-driven lenses. As lens weight continues to increase, motor-driven lenses become less stable, prone to lens shifting, and the camera module's image quality is also declining. Summary of the Invention
[0003] The purpose of the present invention is to provide a camera module and an electronic device to solve the technical problem that the lens is easily offset and the imaging quality of the camera module is getting worse and worse.
[0004] The present invention provides a camera module, comprising: a circuit board, a moving component, a motor, an image sensor, a lens, and a housing, wherein the housing is fixed to the circuit board, a first accommodation space is formed in the housing, the motor is arranged in the first accommodation space, and the motor is fixed to the housing, a locking position is provided in the moving component, the image sensor is arranged in the locking position, the motor comprises a movable portion and a fixed portion arranged on the movable portion, a second accommodation space is formed in the fixed portion, the lens is accommodated in the second accommodation space, the movable portion is connected to the moving component, and when the position of the lens is offset, the movable portion drives the moving component to move, and the moving component drives the image sensor to move, so that the image sensor and the lens are aligned. The present application sets the movable portion of the motor to drive the moving component to move, and the moving component drives the image sensor to move, so that the image sensor and the lens are aligned, and the light passing through the lens can be better imaged on the image sensor, with high imaging quality, which solves the technical problem that the stability of the lens is getting worse and worse, the lens is easily offset, and the imaging quality of the camera module is also getting worse and worse.
[0005] The movable assembly includes a carrier plate, the carrier plate having the retaining position defined therein, the image sensor being positioned within the retaining position on the carrier plate, and the movable portion of the motor being connected to the carrier plate. When the lens is displaced, the movable portion drives the carrier plate to move, which in turn drives the image sensor to move, thereby aligning the image sensor with the lens. The connection between the movable portion of the motor and the carrier plate establishes a connection between the movable portion of the motor and the movable assembly, which in turn drives the movement of the carrier plate, thereby driving the movement of the image sensor.
[0006] Among them, a movable space is provided between the motor and the housing, and the movable assembly further includes a movable plate, which is provided at the edge of the supporting plate, and the movable plate and the supporting plate form a receiving cavity, and at least part of the structure of the motor is received in the receiving cavity. When the position of the lens is offset, the movable portion drives the supporting plate to move, and the supporting plate drives the movable plate to move in the movable space. During the movement process, the supporting plate of the present application drives the movable plate to move in the movable space, and the stress on the supporting plate can be extended to the movable plate, and then the stress is released through the movable plate, thereby improving the service life of the supporting plate. Moreover, the movable plate is provided in the movable space between the motor and the housing, and the movable space between the motor and the housing is utilized. The setting of the movable plate will not increase the volume of the camera module.
[0007] The movable plate includes a plurality of bent plates connected end to end in sequence, and the bending portion of each bent plate is a first curved plate. The provision of the first curved plate can fix the bending position of the bent plate, making it less likely for a reaction force to occur. The provision of the first curved plate can also help dissipate stress, making the camera module safer. Moreover, the provision of the first curved plate can ensure that when one bent plate moves, the movement of the bent plate is smoothly transmitted to the next bent plate through the first curved plate, thereby avoiding tearing damage to the bent plate at the bend, thereby avoiding damage to the movable plate and increasing the service life of the camera module.
[0008] Wherein, each of the bending plates includes an intermediate plate, a first extension plate and a second extension plate. In the connection direction of the multiple bending plates, the first extension plate and the second extension plate are arranged on both sides of the intermediate plate. The intermediate plate is bent, and the bending part of the intermediate plate is the first curved plate. In the optical axis direction of the lens, the first extension plate is connected to the supporting plate, and the connection between the first extension plate and the supporting plate is the second curved plate. The camera module also includes a connecting plate, which is arranged outside the accommodating cavity. In the optical axis direction of the lens, the connecting plate is connected to the second extension plate, the connecting plate is fixed on the circuit board, and the connection between the second extension plate and the connecting plate is the third curved plate. The present application realizes the connection between the bending plate and the supporting plate by connecting the first extension plate to the supporting plate, and then realizes the connection between the movable plate and the supporting plate. When the movable part of the motor moves, it can drive the movable plate to move, and then drive the supporting plate to move. The second curved plate at the junction of the first extension plate and the carrier plate ensures that the bending plate's motion is smoothly transmitted to the carrier plate during movement, preventing tearing damage at the junction between the first extension plate and the carrier plate, thereby preventing damage to the movable plate and extending the service life of the camera module. The third curved plate at the junction of the second extension plate and the connecting plate also prevents tearing damage at the junction between the second extension plate and the connecting plate, thereby preventing damage to the movable plate and extending the service life of the camera module.
[0009] Among them, the camera module also includes a bracket and a filter, a receiving groove is provided in the bracket, a light-through hole is provided at the bottom of the receiving groove, the filter is received in the receiving groove and covers the light-through hole; the bracket includes a first surface and a second surface arranged opposite to the first surface, the first surface is connected to the movable part of the motor, and the second surface is connected to the supporting plate so that the movable part of the motor is connected to the supporting plate; when the position of the lens is offset, the movable part drives the bracket to move, and the bracket drives the filter and the supporting plate to move, so that the filter is aligned with the lens, and the image sensor is aligned with the lens. The present application sets a first surface of the bracket connected to the movable part of the motor, and a second surface of the bracket connected to the carrier plate. The movable part drives the bracket to move, the bracket drives the filter and the carrier plate to move, and the carrier plate drives the image sensor to move, thereby aligning the filter with the lens, and the image sensor with the lens. The image sensor has high imaging quality, the filter has high filtering efficiency, and the filtering effect is good. This solves the technical problems of increasingly poor stability of the lens, easy deviation of the lens, and increasingly poor overall imaging quality of the camera module due to poor filtering effect.
[0010] The camera module further includes a signal line and a power line, the signal line and the power line being arranged on different bent plates; the bracket includes a main body and a plurality of ears arranged on the edge of the main body, each intermediate plate is spaced apart from the carrier plate to form a gap, the plurality of gaps corresponding to the plurality of ears, the main body of the bracket is accommodated in the accommodating cavity, and at least part of the structure of each ear extends out of the accommodating cavity through the gap; a recess is formed between adjacent ears, the movable portion is provided with a connecting terminal facing the carrier plate, the carrier plate is provided with a conductive terminal, the connecting terminal passes through the recess and is connected to the conductive terminal, the conductive terminal is connected to the power line and the signal line, the power line and the signal line are both connected to the connecting plate, and the connecting plate is connected to the circuit board. In the present application, by providing a recess between the bracket ears for the connecting terminal to pass through and connect to the conductive terminal on the carrier plate, the signal on the circuit board can be transmitted to the motor through the power line and the signal line, thereby controlling the movement of the motor.
[0011] The housing includes a top wall and side walls disposed around the periphery of the top wall, the side walls extending toward the circuit board, the top wall and the side walls connected to form the first accommodation space, the top wall being provided with a plurality of positioning posts facing the motor, the motor fixing portion being provided with a plurality of positioning terminals facing the top wall, the plurality of positioning posts being connected to the plurality of positioning terminals in a one-to-one correspondence. In the present application, the provision of a plurality of positioning posts connected to the plurality of positioning terminals in a one-to-one correspondence allows the motor to be installed flatly within the first accommodation space of the housing, thereby preventing the motor from tilting during assembly.
[0012] The top wall is further provided with a plurality of bosses spaced apart from the plurality of positioning posts, each boss extending within the movable space, and a retaining groove is provided between each boss and the side wall of the housing, with at least a portion of the movable plate extending into the retaining groove. In the present application, at least a portion of the movable plate's structure is provided to extend into the retaining groove, thereby limiting the position of the movable plate and preventing the movable plate from interfering with the motor installation process when the motor is installed into the first accommodation space.
[0013] The end of the movable plate away from the supporting plate is connected to the side wall of the housing or to the boss. This further reduces interference of the movable plate with the motor installation process. Furthermore, securing the end of the movable plate away from the supporting plate can avoid technical issues such as excessive bending and deformation of the movable plate.
[0014] Among them, the camera module also includes a first reinforcing plate, a second reinforcing plate and a third reinforcing plate; the intermediate plate also includes a first part and a second part, and in the connection direction of the multiple bending plates, the first part and the second part are arranged on both sides of the first curved plate, and the first part is connected to the first extension plate, and the second part is connected to the second extension plate, the first reinforcing plate is arranged in the accommodating cavity, and the two ends of the first reinforcing plate are respectively connected to the first part and the second part, for protecting the first curved plate; the second reinforcing plate is arranged in the accommodating cavity, and in the optical axis direction of the lens, the two ends of the second reinforcing plate are respectively connected to the first extension plate and the supporting plate, for protecting the second curved plate; the third reinforcing plate is arranged outside the accommodating cavity, and in the optical axis direction of the lens, the two ends of the third reinforcing plate are respectively connected to the second extension plate and the connecting plate, for protecting the third curved plate. The present application increases the service life of the first curved plate by providing a first reinforcing plate to protect the first curved plate, increases the service life of the second curved plate by providing a second reinforcing plate to protect the second curved plate, and increases the service life of the third curved plate by providing a third reinforcing plate to protect the first curved plate, thereby improving the service life of the camera module.
[0015] The camera module further includes a heat sink disposed on the circuit board, and the movable assembly is disposed on a side of the heat sink facing away from the circuit board. The heat sink can dissipate heat from the circuit board and image sensor, thereby extending the service life of the circuit board and image sensor, and thus the service life of the camera module.
[0016] The present invention provides an electronic device comprising the aforementioned camera module. The electronic device of the present application utilizes a movable portion of a motor to drive a movable assembly to move, which in turn drives an image sensor to move, thereby aligning the image sensor with a lens. Light passing through the lens can be well imaged on the image sensor, resulting in high-quality imaging. This solves the technical problem of increasingly poor lens stability, easy lens deviation, and poor camera module imaging quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0018] Figure 1 Schematic diagram of the exploded structure of the camera module provided by an embodiment of the present invention;
[0019] Figure 2 yes Figure 1 Schematic diagram of the structure of the camera module after assembly;
[0020] Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure of the camera module in the B-B direction;
[0021] Figure 4 yes Figure 1 Schematic diagram of the structure of the middle shell;
[0022] Figure 5 yes Figure 1 Schematic diagram of the structure of the bracket and the mobile component;
[0023] Figure 6 This is a schematic diagram of the structure before the mobile component is formed. DETAILED DESCRIPTION
[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0025] See also Figure 1 , Figure 1 : This is a schematic diagram of the exploded structure of the camera module provided by the present invention. The camera module includes: a circuit board 10, a moving component 20, a motor 30, an image sensor 40, a lens 50 and a housing 60. The housing 60 is fixed to the circuit board 10. A first accommodating space 70 is formed in the housing 60. The motor 30 is disposed in the first accommodating space 70 and is fixed to the housing 60. A locking position is provided in the moving component 20, and the image sensor 40 is disposed in the locking position. The motor 30 includes a movable portion 301 and a fixed portion 302 disposed on the movable portion 301. A second accommodating space 80 is formed in the fixed portion 302. The lens 50 is accommodated in the second accommodating space 80. The movable portion 301 is connected to the moving component 20. When the position of the lens 50 is offset, the movable portion 301 drives the moving component 20 to move, and the moving component 20 drives the image sensor 40 to move, so that the image sensor 40 and the lens 50 are aligned. It is understandable that a position sensor and a controller are also provided on the circuit board 10. The position sensor can be a gyroscope or a Hall device, etc., and the controller can be a control chip. The position sensor is used to sense the position of the lens 50. When it detects a shift in the position of the lens 50, it generates a sensing signal and transmits the sensing signal to the controller, which then controls the movement of the movable portion 301 of the motor 30. The controller controls the movement of the movable portion 301 of the motor 30 in the same direction as the shift of the lens 50. This in turn causes the movable assembly 20 to move the image sensor 40 in the direction of the shift of the lens 50, thereby aligning the image sensor 40 with the lens 50. After alignment, the central axis of the image sensor 40 is aligned with the central axis of the lens 50. The motor 30 is connected to the top of the housing 60.
[0026] In the present application, the movable part 301 of the motor 30 is set to drive the moving component 20 to move, and the moving component 20 drives the image sensor 40 to move, so that the image sensor 40 is aligned with the lens 50, and the light passing through the lens 50 can be better imaged on the image sensor 40 with high imaging quality. This solves the technical problems that the stability of the lens 50 is getting worse and worse, the lens 50 is prone to offset, and the imaging quality of the camera module is getting worse and worse.
[0027] See also Figure 2 , Figure 2 for Figure 1Schematic diagram of the structure of the camera module after components are assembled. Figure 2 In the embodiment, the housing 60 is fixed on the circuit board 10 , and the lens 50 is accommodated in the housing 60 .
[0028] Please also refer to Figure 3 In one specific embodiment, a movable space 230 is defined between the motor 30 and the housing 60. The movable assembly 20 includes a carrier plate 201 and a movable plate 202 disposed at the edge of the carrier plate 201. The movable plate 202 and the carrier plate 201 form a receiving chamber 110. At least a portion of the motor 30 is accommodated within the receiving chamber 110. A retaining portion is defined within the carrier plate 201, and the image sensor 40 is disposed within the retaining portion of the carrier plate 201. The movable plate 202 extends into the movable space 230. The movable portion 301 of the motor 30 is connected to the carrier plate 201. When the position of the lens 50 shifts, the movable portion 301 drives the carrier plate 201 to move, which in turn drives the image sensor 40 to move, thereby aligning the image sensor 40 with the lens 50. Simultaneously, during the movement of the carrier plate, the carrier plate 201 drives the movable plate 202 to move within the movable space 230. It is understood that the carrier plate 201 is a plate body with a hollowed-out central region, and recesses are provided around the periphery of the central hollowed-out region, which are connected to form a latching position. When the image sensor 40 is disposed on the carrier plate 201, the image sensor 40 is approximately located in the central region of the carrier plate 201.
[0029] In the present application, the accommodating cavity 110 can accommodate the motor 30, thereby reducing the height of the camera module and reducing the volume of the camera module. The connection between the movable part 301 of the motor 30 and the supporting plate realizes the connection between the movable part 301 of the motor 30 and the moving component 20. The movable part 301 of the motor 30 drives the supporting plate to move, and then drives the movement of the image sensor 40. At the same time, during the movement of the supporting plate 201 of the present application, it drives the moving plate 202 to move in the active space 230, and the stress on the supporting plate 201 can be extended to the moving plate 202, and then the stress is released through the moving plate 202, thereby improving the service life of the supporting plate 201. Moreover, the moving plate 202 is arranged in the active space 230 between the motor 30 and the outer shell 60, and the active space 230 between the motor 30 and the outer shell 60 is utilized. The setting of the moving plate 202 does not increase the volume of the camera module.
[0030] Please also refer to Figure 4 , Figure 4FIG2 is a schematic diagram of the structure of the housing 60 after rotation. The housing 60 includes a top wall 601 and side walls 602 disposed around the periphery of the top wall 601. The side walls 602 extend toward the circuit board 10. The top wall 601 and the side walls 602 are connected to form the first accommodation space 70. The top wall 601 is provided with a plurality of positioning posts 360 facing the motor 30. The fixing portion 302 of the motor 30 is provided with a plurality of positioning terminals 220 facing the top wall 601. The positioning posts 360 are connected to the positioning terminals 220 in a one-to-one correspondence.
[0031] In the present application, a plurality of positioning posts 360 are provided and connected to a plurality of positioning terminals 220 in a one-to-one correspondence, so that the motor 30 can be installed flatly in the first accommodation space 70 of the housing, thereby avoiding the assembly tilt of the motor 30 .
[0032] It is understandable that there are four positioning posts 360 , which are respectively located at the four corners of the top wall 601 . There are four positioning terminals 220 , which are respectively located at the four corners of the fixing portion 302 of the motor 30 .
[0033] In a specific embodiment, the top wall 601 is further provided with a plurality of bosses 350 spaced apart from the plurality of positioning posts 360. Each boss 350 extends within the movable space 230. A retaining groove 320 is defined between each boss 350 and the side wall 602 of the housing 60. At least a portion of the movable plate 202 extends into the retaining groove 320. It will be appreciated that the outer surface of the boss 350 facing the movable space 230 is a curved surface.
[0034] In the present application, at least part of the structure of the movable plate 202 is extended into the limiting groove 320, which limits the position of the movable plate 202 and avoids interference of the movable plate 202 with the installation process of the motor 30 when the motor 30 is installed in the first accommodating space 70.
[0035] In one specific embodiment, the end of the movable plate 202 away from the supporting plate 201 is connected to the side wall 602 of the housing 60, or to the boss 350. This further reduces interference of the movable plate 202 with the installation process of the motor 30. Furthermore, securing the end of the movable plate 202 away from the supporting plate 201 can avoid technical problems such as excessive bending and deformation of the movable plate 202.
[0036] In a specific embodiment, the movable plate 202 includes a plurality of bent plates 120 connected end to end in sequence, and the bending part of each bent plate 120 is a first curved plate A. The first curved plate A protrudes outward from the accommodating cavity 110, and an arc-shaped space is provided in the first curved plate A on the side facing the accommodating cavity 110. Each bent plate 120 is located at a corner of the circuit board 10. The provision of the first curved plate A can fix the bending position of the bent plate 120, making it less likely for a reaction force to occur. The provision of the first curved plate A can also help dissipate stress, making the camera module safer. Moreover, the provision of the first curved plate A can ensure that when one bent plate 120 moves, the movement of the bent plate 120 is smoothly transmitted to the next bent plate 120 through the first curved plate A, thereby avoiding tearing damage to the bent plate 120 at the bend, thereby avoiding damage to the movable plate 202 and improving the service life of the camera module.
[0037] In a specific embodiment, there are four bending plates 120, which correspond to the four corners of the circuit board 10. The present application does not limit the specific number of bending plates 120, and the bending plates 120 can also be other numbers, such as 2, 6, etc.
[0038] In a specific embodiment, each bent plate 120 includes a middle plate 1201, a first extension plate 1202, and a second extension plate 1203. In the connection direction of the multiple bent plates 120, the first extension plate 1202 and the second extension plate 1203 are disposed on either side of the middle plate 1201. The middle plate 1201 is bent, and the bend of the middle plate 1201 forms a first curved plate A. In the direction of the optical axis of the lens, the first extension plate 1202 is connected to the supporting plate 201, and the connection between the first extension plate 1202 and the supporting plate 201 forms a second curved plate B. It will be understood that the connection direction of the multiple bent plates 120 is the circumferential direction of the movable plate 202.
[0039] In the present application, the connection between the bending plate 120 and the carrier plate 201 is achieved by connecting the first extension plate 1202 to the carrier plate 201, thereby achieving the connection between the movable plate 202 and the carrier plate 201. When the movable portion 301 of the motor 30 moves, it can drive the movable plate 202 to move, thereby driving the carrier plate 201 to move. The provision of the second curved plate B at the connection between the first extension plate 1202 and the carrier plate 201 allows the movement of the bending plate 120 to be smoothly transmitted to the carrier plate 201 when the bending plate 120 moves, thereby avoiding tearing damage at the connection between the first extension plate 1202 and the carrier plate 201, thereby avoiding damage to the movable plate 202 and improving the service life of the camera module. At the same time, the second curved plate B at the connection between the first extension plate 1202 and the carrier plate 201 can avoid the technical problem of abnormal installation of the movable plate 202 caused by interference from the bending plate 120.
[0040] In one specific embodiment, the camera module further includes a connecting plate 130, which is disposed outside the accommodating cavity 110 and connected to the second extension plate 1203 in the direction of the lens optical axis. The connecting plate 130 is fixed to the circuit board 10, and the connection between the second extension plate 1203 and the connecting plate 130 forms a third curved plate C. It will be appreciated that the housing 60 is provided with a slit, through which the connecting plate 130 extends outside the first accommodating space 70.
[0041] In this application, the third curved plate C provided at the junction of the second extension plate 1203 and the connecting plate 130 prevents tearing damage at the junction of the second extension plate 1203 and the connecting plate 130, thereby preventing damage to the movable plate 202 and extending the service life of the camera module. Furthermore, the provision of the third curved plate C at the junction of the second extension plate 1203 and the connecting plate 130 prevents assembly anomalies of the movable plate 202 caused by interference from the bent plate 120.
[0042] The camera module further includes a bracket 140 and a filter 150. The bracket 140 is provided with a receiving groove 160. The bottom of the receiving groove 160 is provided with a light hole 170. The filter 150 is received in the receiving groove 160 and covers the light hole 170. It is understood that the receiving groove 160 is roughly located in the center area of the bracket 140.
[0043] The bracket 140 includes a first surface 1403 and a second surface 1404 disposed opposite the first surface 1403. The first surface 1403 is connected to the movable portion 301 of the motor 30, and the second surface 1404 is connected to the carrier plate 201, thereby connecting the movable portion 301 of the motor 30 to the carrier plate 201. When the lens 50 shifts, the movable portion 301 drives the bracket 140 to move, which in turn drives the optical filter 150 and the carrier plate 201 to align the optical filter 150 with the lens 50, and the image sensor 40 with the lens 50. It is understood that the movable portion 301 of the motor 30 is connected to the carrier plate 201 via the bracket 140. The bracket 140 is disposed between the carrier plate 201 and the movable portion 301 of the motor 30. At least a portion of the bracket 140 is housed within the accommodating cavity 110.
[0044] The movable portion 301 of the motor 30 includes a bottom surface 3011 and a side surface 3012 connected to the bottom surface 3011. The bottom surface 3011 faces the accommodating cavity 110, and the side surface 3012 faces the movable space 230. The first surface 1403 of the bracket 140, which is received in the accommodating cavity 110, is connected to the bottom surface 3011 of the movable portion 301 of the motor 30. The second surface 1404 of the bracket 140, which is received in the accommodating cavity 110, is connected to the supporting plate 201. When the position of the lens 50 shifts, the movable portion 301 drives the bracket 140 to move, and the bracket 140 drives the filter 150 and the supporting plate 201 to move, so that the filter 150 and the lens 50 are aligned, and the image sensor 40 and the lens 50 are aligned. It will be understood that after alignment, the central axis of the filter 150 and the central axis of the lens 50 are aligned.
[0045] In the present application, the first surface 1403 of the bracket 140 is connected to the movable part 301 of the motor 30, and the second surface 1404 of the bracket 140 is connected to the carrier plate 201. The movable part 301 drives the bracket 140 to move, the bracket 140 drives the filter 150 and the carrier plate 201 to move, and the carrier plate 201 drives the image sensor 40 to move, so that the filter 150 and the lens 50 are aligned, and the image sensor 40 and the lens 50 are aligned. The imaging quality of the image sensor 40 is high, the filtering efficiency of the filter 150 is high, and the filtering effect is good. This solves the technical problems that the stability of the lens 50 is getting worse and worse, the lens 50 is prone to offset, and the overall imaging quality of the camera module is getting worse and worse due to the poor filtering effect.
[0046] See also Figure 5 It can be understood that the bracket 140 includes a main body 1401 and a plurality of ears 1402 provided on the edge of the main body 1401, each intermediate plate 1201 is spaced apart from the supporting plate 201 to form a gap 210, and the plurality of gaps 210 correspond one-to-one to the plurality of ears 1402. The main body 1401 of the bracket 140 is accommodated in the accommodating cavity 110, and at least part of the structure of each ear 1402 passes through the gap 210 and extends outside the accommodating cavity 110.
[0047] The camera module further includes a signal line and a power line, and the signal line and the power line are disposed on different bending plates 120 .
[0048] A recess 310 is formed between adjacent ears 1402, and the movable portion 301 is provided with a connecting terminal 280 facing the carrier plate 201, and the carrier plate 201 is provided with a conducting terminal 290. The connecting terminal 280 passes through the recess 310 and is connected to the conducting terminal 290. The conducting terminal 290 is connected to the power line and the signal line. The power line and the signal line are both connected to the connecting plate 130, and the connecting plate 130 is connected to the circuit board 10.
[0049] In the present application, a recess 310 is provided between the ears 1402 of the bracket 140 for the connection terminal 280 to pass through so as to connect with the conductive terminal 290 on the carrier board 201, so that the signal on the circuit board 10 can be transmitted to the motor 30 through the power line and the signal line, thereby controlling the movement of the motor 30.
[0050] Thus, the bent plate 120 of the present application can accommodate both signal and power cables, saving space. Furthermore, the signal and power cables are located on different bent plates 120, preventing interference between them. Alternatively, the signal and power cables can be located on two opposing bent plates 120, ensuring uniform force distribution across the camera module and maintaining a stable structure.
[0051] In a specific embodiment, the camera module further includes a first reinforcing plate 180, a second reinforcing plate 240 and a third reinforcing plate 250;
[0052] The middle plate 1201 further includes a first portion 260 and a second portion 270. In the connection direction of the multiple bent plates, the first portion 260 and the second portion 270 are disposed on either side of the first curved plate A. The first portion 260 is connected to the first extension plate 1202, and the second portion 270 is connected to the second extension plate 1203. The first reinforcing plate 180 is disposed within the accommodating cavity, and its two ends are respectively connected to the first portion 260 and the second portion 270 to protect the first curved plate A.
[0053] The second reinforcing plate 240 is disposed in the accommodating cavity. In the optical axis direction of the lens, the two ends of the second reinforcing plate 240 are respectively connected to the first extension plate 1202 and the supporting plate to protect the second curved plate B.
[0054] The third reinforcing plate 250 is disposed outside the accommodating cavity. In the optical axis direction of the lens, two ends of the third reinforcing plate 250 are respectively connected to the second extending plate 1203 and the connecting plate to protect the third curved plate C.
[0055] The present application increases the service life of the first curved plate A by setting a first reinforcing plate to protect the first curved plate A, increases the service life of the second curved plate B by setting a second reinforcing plate 240 to protect the second curved plate B, and increases the service life of the third curved plate C by setting a third reinforcing plate 250 to protect the third curved plate C, thereby improving the service life of the camera module.
[0056] In a specific embodiment, the camera module further includes a heat sink 190 , which is disposed on the circuit board 10 , and the moving component 20 is disposed on a side of the heat sink 190 facing away from the circuit board 10 .
[0057] The present application can dissipate heat from the circuit board 10 and the image sensor 40 by disposing the heat dissipation plate 190 , thereby increasing the service life of the circuit board 10 and the image sensor 40 , and thereby increasing the service life of the camera module.
[0058] It is understandable that the bending plate 120 is a flexible circuit board, and the moving component 20 is formed by bending the hollowed-out flexible flat plate. Figure 6 As shown, in the initial state, the moving assembly 20 is a hollowed-out flat plate. The plate includes a carrier plate 201 located in the center and four edge plates 340 located at the edges. The four edge plates 340 are all connected to the carrier plate 201. Two edge plates 340 extend outward from one edge of the carrier plate 201, and two edge plates 340 extend outward from the other edge of the carrier plate 201. The four edge plates 340 are arranged axially symmetrically. The bracket 140 is located on the carrier plate 201, and the motor 30 is located on the bracket 140. The motor 30 is equipped with a lens 50. Each edge plate 340 includes a first sub-plate 3401 and a second sub-plate 3402 that are interconnected. The first sub-plate 3401 is connected to the carrier plate 201, and the second sub-plate 3402 is connected to the connecting plate 130. The first sub-plate 3401 is bent approximately 90 degrees, and the second sub-plate 3402 is bent approximately 90 degrees. The edge plate 340 bends toward the carrier plate 201, with the connection between the edge plate 340 and the carrier plate 201 serving as the axis of rotation, and stops approximately perpendicular to the carrier plate 201. The bent connection between the edge plate 340 and the carrier plate 201 forms the second curved plate B. The second sub-plate 3402 bends toward the carrier plate 201, with the connection between the second sub-plate 3402 and the first sub-plate 3401 serving as the axis of rotation, and stops approximately perpendicular to the first sub-plate 3401. The bent connection between the second sub-plate 3402 and the first sub-plate 3401 forms the first curved plate A. At this point, the connecting plate 130 is perpendicular to the carrier plate 201. The connecting plate 130 bends away from the carrier plate 201, with the connection between the connecting plate 130 and the second sub-plate 3402 serving as the axis of rotation, and stops approximately parallel to the carrier plate 201. The bent connection between the carrier plate 201 and the second sub-plate 3402 forms the third curved plate C.
[0059] The first curved plate A, the second curved plate B, and the third curved plate C are all flexible plates with low hardness and are easy to bend. The positions of the first curved plate A, the second curved plate B, and the third curved plate C on the flat plate do not change, which facilitates the standardization of the movable assembly 20 formed after the flat plate is bent, and is convenient for mass production. The first curved plate A, the second curved plate B, and the third curved plate C are all curved plates that can buffer stress and transfer stress to the movable plate 202. The stress is released by the movable plate 202, reducing the stress on the support plate 201 and increasing the service life of the movable assembly 20.
[0060] It will be appreciated that the motor's movable portion 301 and fixed portion 302 are connected via SMA suspension wires, such as one SMA wire connected to each of the four corresponding corners of the movable portion 301 and the fixed portion 302. The SMA wires contract when heated and expand when cooled. When the lens 50 shifts position, the circuit board 10 generates a control signal and transmits it to the movable portion 301 of the motor 30. This signal then drives the movable assembly 20, which in turn drives the image sensor 40, ensuring alignment between the image sensor 40 and the lens 50.
[0061] The present invention also provides an electronic device including the aforementioned camera module. The electronic device equipped with the camera module of the present application utilizes a movable portion 301 of a motor 30 to drive a movable assembly 20 to move, which in turn drives an image sensor 40 to move, thereby aligning the image sensor 40 with a lens 50. This allows light passing through the lens 50 to form an image on the image sensor 40 with good quality, thereby resolving the technical issue of the increasingly poor stability of the lens 50, which can easily cause the lens 50 to shift, and the resulting poor imaging quality of the camera module.
[0062] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of the rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.
Claims
1. A camera module, characterized in that: include: A circuit board, a moving component, a motor, an image sensor, a lens and a housing, wherein the housing is fixed to the circuit board, a first accommodating space is formed in the housing, the motor is disposed in the first accommodating space and is fixed to the housing, a locking position is provided in the moving component, the image sensor is disposed in the locking position, the motor includes a movable portion and a fixed portion provided on the movable portion, a second accommodating space is formed in the fixed portion, the lens is accommodated in the second accommodating space, the movable portion is connected to the moving component, the moving component includes a moving plate, the housing is provided with a boss, the outer surface of the boss facing the motor is an arc surface, a limiting groove is formed between the boss and the housing, at least part of the structure of the moving plate extends into the limiting groove, the arc surface is inclined toward a side close to the motor, the width of the limiting groove is greater than the thickness of the moving plate in a direction perpendicular to the optical axis, when the position of the lens is offset, the movable portion drives the moving component to move, and the moving component drives the image sensor to move so that the image sensor is aligned with the lens.
2. The camera module according to claim 1, wherein: The movable assembly includes a carrier plate, the carrier plate is provided with the locking position, the image sensor is provided in the locking position of the carrier plate, the movable part of the motor is connected to the carrier plate, when the position of the lens is offset, the movable part drives the carrier plate to move, and the carrier plate drives the image sensor to move, so that the image sensor is aligned with the lens.
3. The camera module according to claim 2, wherein: A movable space is provided between the motor and the housing, the movable plate is provided at the edge of the supporting plate, the movable plate and the supporting plate form a receiving cavity, at least part of the structure of the motor is received in the receiving cavity, when the position of the lens is offset, the movable part drives the supporting plate to move, and the supporting plate drives the movable plate to move in the movable space.
4. The camera module according to claim 3, wherein: The movable plate includes a plurality of bent plates connected end to end in sequence, and the bending portion of each bent plate is a first arc-shaped plate.
5. The camera module according to claim 4, wherein: Each of the bent plates includes a middle plate, a first extension plate, and a second extension plate. In the connection direction of the plurality of bent plates, the first extension plate and the second extension plate are arranged on both sides of the middle plate. The middle plate is bent, and the bending portion of the middle plate forms the first curved plate. In the optical axis direction of the lens, the first extension plate is connected to the supporting plate, and the connection portion between the first extension plate and the supporting plate forms the second curved plate. The camera module also includes a connecting plate, which is arranged outside the accommodating cavity. In the optical axis direction of the lens, the connecting plate is connected to the second extension plate. The connecting plate is fixed on the circuit board, and the connection between the second extension plate and the connecting plate is a third arc-shaped plate.
6. The camera module according to claim 5, wherein: The camera module further includes a bracket and a filter. The bracket is provided with a receiving groove, the bottom of the receiving groove is provided with a light hole, and the filter is received in the receiving groove and covers the light hole. The bracket includes a first surface and a second surface disposed opposite to the first surface, the first surface being connected to the movable portion of the motor, and the second surface being connected to the supporting plate, so that the movable portion of the motor is connected to the supporting plate; When the position of the lens is offset, the movable portion drives the bracket to move, and the bracket drives the filter and the carrying plate to move, so that the filter is aligned with the lens, and the image sensor is aligned with the lens.
7. The camera module according to claim 6, wherein: The camera module further includes a signal line and a power line, wherein the signal line and the power line are arranged on different bending plates; The bracket includes a main body and a plurality of ears provided at the edge of the main body. Each of the intermediate plates is spaced apart from the supporting plate to form a gap. The gaps correspond to the ears one by one. The main body of the bracket is accommodated in the accommodating cavity. At least a portion of the structure of each ear extends out of the accommodating cavity through the gap. A recess is formed between adjacent ears, and the movable part is provided with a connecting terminal facing the carrier board. A conducting terminal is provided on the carrier board. The connecting terminal passes through the recess and is connected to the conducting terminal. The conducting terminal is connected to the power line and the signal line. The power line and the signal line are both connected to the connecting board, and the connecting board is connected to the circuit board.
8. The camera module according to claim 7, wherein: The housing includes a top wall and side walls arranged on the periphery of the top wall, the side walls extend toward the circuit board, the top wall and the side walls are connected to form the first accommodating space, the top wall is provided with a plurality of positioning posts facing the motor, and the fixing part of the motor is provided with a plurality of positioning terminals facing the top wall, and the plurality of positioning posts are connected one-to-one with the plurality of positioning terminals.
9. The camera module according to claim 8, wherein: The top wall is further provided with a plurality of bosses spaced apart from the plurality of positioning posts. Each of the bosses extends within the activity space, and a limiting groove is provided between each of the bosses and the side wall of the housing.
10. The camera module according to claim 9, wherein: The end of the movable plate away from the carrying plate is connected to the side wall of the housing, or connected to the boss.
11. The camera module according to claim 5, wherein: The camera module further includes a first reinforcing plate, a second reinforcing plate and a third reinforcing plate; The intermediate plate further includes a first portion and a second portion. In the connection direction of the plurality of bent plates, the first portion and the second portion are provided on both sides of the first curved plate, and the first portion is connected to the first extension plate, and the second portion is connected to the second extension plate. The first reinforcing plate is provided in the accommodating cavity, and the two ends of the first reinforcing plate are respectively connected to the first portion and the second portion, for protecting the first curved plate. The second reinforcing plate is disposed in the accommodating cavity. In the optical axis direction of the lens, two ends of the second reinforcing plate are respectively connected to the first extending plate and the supporting plate to protect the second curved plate. The third reinforcing plate is arranged outside the accommodating cavity. In the optical axis direction of the lens, two ends of the third reinforcing plate are respectively connected to the second extending plate and the connecting plate for protecting the third curved plate.
12. The camera module according to claim 1, wherein: The camera module further includes a heat sink, which is arranged on the circuit board, and the moving component is arranged on a side of the heat sink facing away from the circuit board.
13. An electronic device, characterized in that: The electronic device includes a camera module as described in any one of claims 1-12.
Citation Information
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