A Sensor-Shift camera module

Abstract

The present invention belongs to the technical field of VCM motors, and discloses a Sensor‑Shift camera module, including a housing and a lens module, wherein a sensor assembly is provided in the housing, and the sensor assembly is movably connected to the housing through an elastic connection mechanism; an AF module and an OIS module are also provided in the housing, and the AF module is movably connected to the lens module, and the OIS module cooperates with the sensor assembly to realize sensor anti-shake; a gasket is provided in the housing, and a first reed is provided on the gasket, and a suspension wire connecting the sensor assembly and the first reed is provided in the elastic connection mechanism. The present invention adopts a sensor anti-shake structure design, and through the optimization of the internal structure, the middle area vacated by the suspension wire is used to set the AF module and the lens module, so as to compress the internal space as much as possible and reduce the overall thickness under the premise of providing a better support effect and elastic deformation.

Description

Technical Field

[0001] The present invention belongs to the technical field of VCM motors, and in particular relates to a Sensor-Shift camera module. Background Art

[0002] The VCM motor is a device that converts electrical energy into mechanical energy and achieves linear and limited swing angle motion. It is a device that uses the interaction between the magnetic field from the permanent magnet and the magnetic poles in the magnetic field generated by the energized coil conductor to produce regular motion. Because the voice coil motor is a non-commutated power device, its positioning accuracy depends entirely on the feedback and control system and has nothing to do with the voice coil motor itself. The emergence of the VCM motor has transformed the smartphone camera from fixed focus to autofocus, while giving small or micro cameras an anti-shake function. Its biggest function is that the camera can automatically focus and provide motion compensation.

[0003] The VCM of the mobile phone camera needs the cooperation of DriverIC to complete the focus and anti-shake. The existing VCM controls the size of the VCM power supply current through DriverIC to determine the distance the lens carried by the VCM moves, so as to adjust it to the appropriate position to capture a clear image. The VCM motor actually moves based on the principle that the energized coil is subjected to force in the magnetic field. Precise control requires the help of some external components, among which the DriveIC is used to control and output the size and time of the current, thereby controlling the position that the voice coil driver needs to reach. In the mobile phone, all the control information of the DriveIC is given by the SoC, and the control logic and specific parameters are obtained by engineers through repeated adjustments during the design and manufacturing process.

[0004] At present, in the VCM motor market, ordinary VCM motors (open-loop motors) occupy the vast majority of the market share, up to 80%, and closed-loop motors account for 6%. Although both closed-loop motors and OIS motors have received great attention and are sought after, OIS motors have problems in terms of mass production and sales, such as tight resources, lack of technology, complex production process, high production difficulty, low yield, high cost, slow focusing speed, and high power consumption. Among them, the main factor causing this problem is that most of the existing OIS motors use lens anti-shake design, and this structure is bound to cause the separate electromagnetic anti-shake component to occupy a large amount of internal space, and the complex structural design and motion control are bound to bring greater obstacles to the assembly and manufacturing process, resulting in a low yield and high manufacturing cost. Summary of the invention

[0005] In order to solve the problems existing in the prior art, the present invention provides a Sensor-Shift camera module, which realizes the miniaturization of the OIS module by optimizing the internal structure, thereby effectively reducing the thickness of the entire camera module to adapt to terminal devices with smaller installation spaces.

[0006] The technical solution adopted by the present invention is:

[0007] In a first aspect, the present invention discloses a Sensor-Shift camera module, comprising a housing and a lens module, wherein a sensor assembly is provided in the housing, and the sensor assembly is movably connected to the housing via an elastic connection mechanism;

[0008] The housing also has an AF module and an OIS module, the AF module is movably connected to the lens module, and the OIS module cooperates with the sensor assembly to realize sensor anti-shake;

[0009] A gasket is arranged in the shell, a first spring is arranged on the gasket, and a suspension wire connecting the sensor component and the first spring is arranged in the elastic connection mechanism.

[0010] First of all, Sensor-Shift means that the motor has a sensor anti-shake function. The existing micro camera module mainly includes two functional components, namely the lens and the sensor. The sensor is used to receive the light penetrating the lens and convert the light image on the photosensitive surface into an electrical signal in proportion to the light image through the photoelectric conversion function for external output.

[0011] Since the input path of light will be affected by the lens module, in order to achieve more stable and efficient imaging, many camera modules are equipped with an AF module connected to the lens module, and the internal electromagnetic actuation structure is used to realize the up and down directional movement of the lens module along its axis, thereby realizing the autofocus function. However, since the terminal device set up in the camera module will be affected by external forces, it will produce a certain displacement during the shutter time during the shooting process, causing the light received during the exposure process to have a certain offset and affect the imaging effect. Therefore, in order to improve the above situation, the existing technology includes optical image stabilization and digital image stabilization. Digital image stabilization is to crop or smooth the picture through an algorithm. Since the processing effect is general, it is impossible to obtain a real and clear picture. Optical image stabilization will have an independent OIS module in the camera module, and the movable parts therein will be compensated for motion through a mechanical actuation mechanism, thereby stabilizing the light path.

[0012] Most of the existing technologies are lens anti-shake technology, but since both the AF module and the OIS module are set in the micro camera, its volume cannot be further reduced. In the face of the continuous reduction of the internal space of the terminal equipment, further reducing the thickness and volume of the lens is also the development direction of the existing camera module. In order to reduce the thickness and volume as much as possible, the original OIS module used to control the lens module is set on the sensor, and optical anti-shake is achieved through the motion compensation of the sensor.

[0013] The sensor assembly in the present invention is movably connected to the housing, has a small movable range, and realizes motion control through the provided OIS module. Among them, the first reed is used to provide the main rebound force, giving the sensor assembly a certain limiting effect. Different from the prior art, the present invention is connected to the housing by arranging a gasket at the upper part, and the first reed is fixed with the gasket, and the first reed and the sensor assembly are connected by multiple suspension wires, so that a certain space can be formed between the first reed and the sensor assembly for setting the AF module. And the suspension wire structure with a certain length can provide a better displacement stroke, and increase the flipping amplitude of the sensor assembly to achieve a wider dynamic compensation range.

[0014] In combination with the first aspect, the present invention provides a first implementation of the first aspect, wherein the elastic connection mechanism further comprises a connector having one end fixed in the sensor assembly, the connector having a conductive end electrically connected to an FPC soft board provided in the housing;

[0015] The FPC soft board has an end portion connected to an external circuit;

[0016] The current entering from the FPC soft board enters the AF module through the connecting piece, the suspension wire and the first reed in sequence.

[0017] In combination with the first implementation of the first aspect, the present invention provides a second implementation of the first aspect, wherein the sensor assembly includes a base and an image sensor disposed on the base, and a sensor protection cover is fastened on the image sensor; and the connecting member is disposed on the base.

[0018] In combination with the second embodiment of the first aspect, the present invention provides a third embodiment of the first aspect, wherein the base is an injection molded part, the connecting part is fixed in the base, the sensor is fixed in the middle of the upper surface of the base, and a metal plate for support is provided on the lower surface of the base.

[0019] In combination with the first aspect and its first to third embodiments, the present invention provides a fourth embodiment of the first aspect, wherein the first spring leaf is an annular member having multiple corners and has elastic walls at the corners, and the elastic wall has ends connected to the suspension wires.

[0020] In combination with the second and third embodiments of the first aspect, the present invention provides a fifth embodiment of the first aspect, wherein the OIS module includes a first magnet arranged at the bottom of the shell and a first coil arranged at the bottom of the base, the lower surface of the base has an annular groove, a PCB board connected to an external circuit is arranged in the annular groove, and the first coil is arranged on the PCB board.

[0021] In combination with the second and third embodiments of the first aspect, the present invention provides a sixth embodiment of the first aspect, wherein the housing further comprises an FPC cable for connecting external circuits and sensor components, the FPC cable comprising a fitting portion that is fitted to the outer periphery of the image sensor on the upper surface of the base, and a surrounding portion that is bent at 90° to the fitting portion, the surrounding portion being connected to the fitting portion via a plurality of bending portions.

[0022] In combination with the first aspect and the first to third embodiments thereof, the present invention provides a seventh embodiment of the first aspect, wherein the housing comprises a shell and a bottom cover, and the bottom cover has a plurality of clips engaged with the shell.

[0023] In combination with the first aspect and its first to third embodiments, the present invention provides an eighth embodiment of the first aspect, wherein the AF module has multiple bosses, and the AF module is sunk into the shell from an opening on one side of the shell and is fixedly connected to the edge of the shell opening by the bosses.

[0024] In combination with the eighth implementation of the first aspect, the present invention provides a ninth implementation of the first aspect, wherein the AF module further comprises an FPC belt connected to an external circuit, and the FPC belt is connected to a Hall sensor provided in the AF module.

[0025] The beneficial effects of the present invention are:

[0026] (1) The present invention adopts a sensor anti-shake structure design, and through the optimization of the internal structure, a first reed structure is arranged in the housing, and the sensor assembly is provided with supporting force and elastic restoring force in a suspended manner through the suspension wire, and the middle area vacated by the suspension wire is used to set the AF module and the lens module, so as to compress the internal space as much as possible and reduce the overall thickness under the premise of providing a good supporting effect and elastic deformation amount;

[0027] (2) The AF module and the sensor assembly in the present invention are relatively independent and are connected to the housing through corresponding connection structures. Due to their independent connection, the optical axis can be independently adjusted during assembly, thereby improving assembly efficiency;

[0028] (3) The present invention adopts a bent FPC cable structure design, which can save internal space while connecting external circuits and sensor components. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a split structure diagram of the entire lens module of the present invention, in which the AF module with the lens module is disassembled;

[0030] Figure 2 It is a schematic diagram of the internal structure of the entire lens module of the present invention after the housing is removed during assembly;

[0031] Figure 3 is an exploded view of the entire lens module of the present invention;

[0032] Figure 4 This is a first structural schematic diagram of the OIS module and the sensor assembly in the present invention in a disassembled state;

[0033] Figure 5 This is a second structural schematic diagram of the OIS module and the sensor assembly in the present invention in a disassembled state;

[0034] Figure 6 It is a schematic diagram of the connection structure of the base, the connecting member, the suspension wire and the first reed in the present invention;

[0035] Figure 7 It is a schematic diagram of the connection structure of the connecting member, the suspension wire and the first reed in the present invention.

[0036] In the figure: 1-shell, 3-lens module, 4-bottom cover, 5-FPC cable, 6-gasket, 7-first spring, 7.1-elastic part, 8-image sensor, 9-sensor protection cover, 10-AF bottom shell, 11-upper spring, 12-lower spring, 13-AF upper cover, 14-bracket, 15-suspension wire, 16-first magnet, 17-base, 18-metal plate, 19-PCB board, 20-first coil, 21-connector, A-AF module. DETAILED DESCRIPTION

[0037] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.

[0038] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0040] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0041] In the description of this application, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, if the terms "first", "second", etc. appear in the description of this application, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0042] In addition, if the terms "horizontal" or "vertical" appear in the description of this application, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0043] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] Embodiment 1:

[0045] This embodiment discloses a camera module structure, such as Figure 1-7 As shown, it includes a shell and a lens module 3, a sensor assembly is provided in the shell, and the sensor assembly is movably connected to the shell through an elastic connection mechanism; the shell also includes an AF module and an OIS module, the AF module is movably connected to the lens module 3, and the OIS module cooperates with the sensor assembly to realize sensor anti-shake; a gasket 6 is provided in the shell, a first reed 7 is provided on the gasket 6, and the elastic connection mechanism has a suspension wire 15 connecting the sensor assembly and the first reed 7.

[0046] Among them, the sensor module has a base 17, and the outer shell includes a shell 1 and a bottom cover 4. The bottom cover 4 is the bottom baffle of the entire camera module. The circuits and sensors in the prior art are all arranged at this position. Due to the large number of wirings, the prior art mostly adopts a multi-layer structure design, which is bound to lead to greater difficulty in assembly.

[0047] The base 17 is movably connected to the camera module, and the sensor is arranged on the base 17; a plurality of first coils 20 are arranged on the base 17, and a first magnet 16 corresponding to the first coil 20 is fixed in the shell. The base 17 is used to support the sensor components, and the base 17 and the shell are movably connected, so that the base 17 can have a certain degree of freedom in the camera module and can be spatially displaced. Since it is necessary to give motion compensation to the sensor, motion control is achieved by cooperating with the plurality of first coils 20 arranged on the base 17 and the external first magnet 16. The first coil 20 is connected to the external circuit, and a stable magnetic field can be generated by power-on control. Since the magnets are mostly permanent magnets, an effective magnetic field environment can be generated near the first coil 20.

[0048] When the current flows through the first coil 20 and a magnetic field is generated due to the electromagnetic effect, a force can be generated to move in a directional manner, thereby moving the base 17 carrying the image sensor 8. The specific control signal is a corresponding control command generated by an external processor according to the motion data transmitted by a gyroscope in the same terminal device as the camera, and after assembly, the anti-shake component of each camera module will be debugged to achieve a better anti-shake effect.

[0049] In order to achieve better displacement control and volume control, integrating the first coil 20 on the base 17 can provide a more direct force, and at the same time, setting the first magnet 16 at the bottom of the housing of the camera module and close to the corresponding first coil 20 can have better space utilization and will not interfere with the image sensor 8 or AF module. Therefore, the magnet and the first coil 20 can present an ideal shape in the plane direction to achieve the effect of reducing the overall height. It is worth noting that the so-called height refers to the dimension in the axial direction of the camera.

[0050] The entire base 17 is a resin casting, with a solid circuit structure inside, which can be connected to an external circuit to transmit data and supply power to the sensor, and at the same time, in order to reduce the thickness of the entire base 17. Specifically, the base 17 includes a body formed by injection molding and a metal conductor arranged in the body, and the metal conductor is the connector 21. Since there are multiple connectors 21 in this embodiment, and the actual shape is a strip of metal with a certain bending length, it is referred to as a metal conductor.

[0051] Further, Figure 7The metal conductor structure wrapped by the injection molding material is shown in FIG. The metal conductor in this embodiment has four identical parts, each of which includes a right-angle corner piece, and two connecting parts are provided on the concave side of the right-angle corner piece, and an extension part is provided on the outside of the corner. The metal conductor has the function of connecting the bottom substrate of the sensor and the coil at the bottom of the base 17 to transmit electrical energy. Due to the split design, each coil can be independently controlled for power transmission.

[0052] Furthermore, an annular groove arranged around the outer edge of the sensor is provided on the bottom surface of the body. The inner edge of the annular groove is larger than or exactly equal to the outer edge size of the required installation position of the sensor, so that the multiple first coils 20 arranged on the back can be arranged around the sensor circumference. A bottom plate is provided in the annular groove, and the bottom plate is a PCB board 19. The first coil 20 is arranged on the bottom plate and connected to the circuit in the bottom plate. The so-called bottom plate is a ring-shaped PCB printed circuit board structure, which is used to connect an external control circuit, input a control current to the coil, and perform motion detection through multiple sensors on the bottom plate.

[0053] The base 17 is also provided with an FPC cable 5 on the same plane as the sensor. The upper part of the base 17 is a bonding part of the FPC cable 5, through which the external control circuit, the image sensor 8 and the bottom plate are connected, and a Hall sensor is provided in the middle of the inner circle of the partial coil. The Hall sensor is connected to the external control circuit to send the motion information of the base 17 to the outside, thereby forming a closed-loop control.

[0054] At the same time, a surrounding portion is provided in the vertical space, and the surrounding portion is connected to the fitting portion through a plurality of bending portions. The surrounding portion utilizes the vertical space and its thinner structural features, so as to ensure good conductive stability while occupying as little internal space as possible, leaving more space for other components to expand.

[0055] Furthermore, Figure 6 The figure also specifically shows the base 17 as the main bearing body, wherein the base 17 is a square plate structure with four corners cut off. The protruding end of the metal conductor extends from the cut corner position and is connected to the suspension wire 15.

[0056] There is a square sink at the center of the upper part of the base 17, and an image sensor 8 is arranged in the sink. In order to strengthen the overall structural strength and increase the protection of the sensor, a metal plate 18 is provided at the middle of the bottom of the base 17, and a snap-fit ​​sensor protection cover 9 is provided at the top. The image sensor 8 is the photosensitive element of the camera module, and in this embodiment, it is specifically a CMOS photosensitive device, which has a cable pin on the base 17 and is connected to the external control circuit through the FPC cable 5.

[0057] The first spring sheet 7 structure provided on the upper part of the base 17 is specifically a metal ring sheet structure with a certain width, and its outer edge size is the same as that of the base 17, and it also has a cut corner treatment. A string structure is provided at each of the four cut corners of the body, and a circular ring-shaped enlarged end is provided in the middle of the string structure, and a vertically arranged suspension wire 15 is connected through the enlarged end, and the lower end of the suspension wire 15 is connected to the end of the extension mechanism of the base 17, thereby forming a fixed structure consisting of the body, the string, the suspension wire 15 and the base 17.

[0058] The first spring sheet 7 is connected to the housing 1 of the camera module through the provided gasket 6, and is kept stable on the housing 1 by direct fixed connection or limited clamping. Due to the metal sheet structure design, it has bending deformation ability in the longitudinal direction and can provide a certain elastic restoring force, but mainly provides a suspension and fixing effect for the base 17. The strings at the four corners are a planar structure integrally formed with the elastic body, including an enlarged end, an elastic part 7.1 and a connecting part.

[0059] like Figure 7 As shown, the string structure is a symmetrical structure with the expansion part as the center, and the two sides are the elastic part 7.1 and the connecting part respectively, wherein the elastic part 7.1 is a single metal wire of equal width with multiple bending structures, and the connecting part is a metal wire with gradually increasing width, which is mainly used to connect with the elastic body and avoid stress concentration through smooth transition.

[0060] Further, Figure 7 It can be seen that the elastic part 7.1 of the string has three bending areas, and the middle suspension wire 15 is inserted into the circular hole of the enlarged end, and the enlarged end is connected to the suspension wire 15 by dispensing glue or spot welding. A metal structure protruding outward is provided at the four corner positions of the base 17, and the metal structure is the protruding end of the metal conductor in the base 17. A circular hole is provided on the protruding end, and the suspension wire 15 also passes through the circular hole and is connected by dispensing glue or spot welding.

[0061] The suspension wire 15 has a certain elasticity, but the movement of the base 17 mainly provides elastic restoring force through the elongation and contraction of the strings. Since the four corners of the base 17 are connected to the suspension wires 15, and the electromagnetic action mechanism is arranged at its bottom, the base 17 can perform planar displacement and flipping and tilting movements. Among them, the planar displacement is to move along the plane in which it is located, at this time, the four strings will be pulled to lengthen or contract at the same time. The flipping and tilting movement is that it can flip along the line connecting the connection points of the two suspension wires 15. At this time, two groups of strings are pulled down, and the other two groups are pulled up.

[0062] Embodiment 2:

[0063] This embodiment is optimized and adjusted based on the above-mentioned embodiment 1.

[0064] like Figure 3As shown, the entire camera module includes an outer shell and internal functional components, wherein the bottom of the outer shell has an opening for the internal FPC cable 5 to extend out, and the FPC cable 5 is used to connect the circuit board of the mobile terminal device with the circuit board of the camera module to meet the transmission of electrical signals for power supply and control.

[0065] The housing is formed by two parts that are buckled together, specifically the housing 1 and the bottom cover 4. The bottom cover 4 has a buckle structure around it, which is snap-fitted with the hook groove on the inner wall of the bottom of the housing 1. The top of the housing 1 has a square opening, and the square opening is cut to form a hexagonal shape.

[0066] An AF module A, i.e., an autofocus unit, is also provided on the upper part of the sensor assembly. The AF module A has a through channel for carrying and fixing the lens module 3. The lens module 3 in this embodiment is the same as the prior art, and is an independent integrated cylindrical structure with multiple lenses with fixed spacing built in, which has the function of converging light, and increases the lens resolution and contrast, and can improve the dispersion and reflection caused by glare through coating and size optimization of plastic lenses.

[0067] Since the lens module 3 is used for light transmission and the internal lens spacing is fixed, the angle of the light emitted from its tail is fixed. In order to realize the autofocus function, it is necessary to set an action component on the AF module A to adjust the lens module 3 to perform axial movement in the shell.

[0068] Specifically, the entire AF module A includes an AF bottom shell 10 and an AF upper cover 13 that are buckled with each other. Both the AF upper cover 13 and the AF bottom shell 10 are provided with openings, and the AF upper cover 13 is buckled on one side of the AF bottom shell 10 to form a restrictive effect on the components in the AF bottom shell 10. A bracket 14 is provided in the AF bottom shell 10, and an upper spring leaf 11 and a lower spring leaf 12 are respectively provided on the upper and lower sides of the bracket 14. The bracket 14 is connected to the AF bottom shell 10 through the upper spring leaf 11 and the lower spring leaf 12. Since the springs on both sides have a certain elastic extension length, the bracket 14 can move up and down along the axis in the AF bottom shell 10.

[0069] like Figure 3 As shown, the figure includes an exploded view of the entire AF module A and the lens module 3 after being disassembled, which is used to show the internal components of the entire AF module A and their correlation. It can be seen that the bracket 14 is an annular structure with a circular hole in the middle, and a focus actuator assembly is provided at each end of the diameter of the circular hole. The focus actuator assembly includes a coil and a magnet, wherein the coil is arranged on the bracket 14, and the magnet is fixed to the inner wall of the AF bottom shell 10. The magnet is close to the coil, and the coil is a single-turn coil, and its two ends are connected to the external circuit through FPC or wiring. A certain magnetic field is generated by external input current, and it cooperates with the magnet to realize the driving force on the bracket 14 in the axial direction, thereby achieving the zoom distance adjustment effect.

[0070] A limiting groove or a thread is provided in the circular hole in the middle of the bracket 14 , and the bracket 14 is connected to the external lens module 3 through the limiting groove and the thread.

[0071] Furthermore, since the optical axis of the entire camera module needs to be adjusted when it is assembled, there is a certain correlation between the sensor and the lens module 3 in the prior art, which is not convenient for adjustment. The sensor in this embodiment is set on a fixed plate, which is connected to the shell through a spring, and is controlled by the sensor anti-shake assembly set on the shell 1, the fixed plate and the bottom cover 4 to achieve flip anti-shake control. The AF module A enters from the top opening of the shell 1 and contacts the edge of the opening at the top of the shell 1 to form a blocking limit.

[0072] Specifically, a boss structure protruding outward is provided at each of the four side positions near the upper edge of the AF bottom shell 10, and the boss structure is formed by the middle part of the inner wall of the AF bottom shell 10 bending outward and extending a certain length. The external dimensions of the entire AF bottom shell 10 are just smaller than or equal to the edge of the outer shell opening, so that its main part can just sink into the shell 1, and the four protruding boss structures just contact the edge of the shell 1 opening to form a block. At this time, the AF module A and the lens module 3 are independent structures relative to the sensor and the sensor anti-shake component, and do not affect each other. Since the entire shell 1 will be placed forward on a certain table during assembly, and each component will be installed in turn, at this time the AF module A can be placed in the shell 1 and connected to the shell under the action of its gravity.

[0073] An annular groove is also provided at the edge of the top opening of the housing 1, the depth of the annular groove is greater than or equal to the thickness of the boss, and the bottom width is also greater than the width of the boss. Figure 1 As shown, when the entire camera module is assembled, the boss just falls into the annular groove, which has a certain pre-positioning effect, and is then connected and fixed by gluing or welding.

[0074] It can also be seen in the figure that there is a cable outlet on any of the bosses, that is, an opening is cut in the middle of the boss to allow the internal cables of the AF module A to fall out.

[0075] A mounting groove is provided on one side surface of the bracket 14, and a magnet is provided in the mounting groove. A PCB board 19 with a Hall sensor is provided on the inner wall of the AF bottom shell 10, and the Hall sensor is close to the magnet. When the magnet moves with the bracket 14, the Hall sensor can determine the displacement and direction of the entire bracket 14 according to the change of the magnetic field, thereby forming a closed-loop control after external feedback.

[0076] The present invention is not limited to the above optional implementations, and anyone can derive other various forms of products under the enlightenment of the present invention. The above specific implementations should not be understood as limiting the scope of protection of the present invention. The scope of protection of the present invention should be based on the definition in the claims, and the description can be used to interpret the claims.

Claims

1. A Sensor-Shift camera module, characterized in that: It comprises a housing and a lens module, wherein a sensor assembly is provided in the housing, and the sensor assembly is movably connected to the housing through an elastic connection mechanism; The housing also has an AF module and an OIS module, the AF module is movably connected to the lens module, and the OIS module cooperates with the sensor assembly to realize sensor anti-shake; A gasket is provided in the housing, a first reed is provided on the gasket, and the elastic connection mechanism has a suspension wire connecting the sensor assembly and the first reed; The AF module has a plurality of bosses, the AF module is sunk into the shell from an opening on one side of the shell and the bosses are pressed against the edge of the shell opening to achieve a fixed connection; the AF module contacts the edge of the opening at the top of the shell to form a blocking limit; the outer size of the AF module is less than or equal to the edge of the shell opening, and the boss structure contacts the edge of the shell opening to form a blocking; the shell includes a shell and a bottom cover, and the bottom cover has a plurality of clips that are clamped with the shell; An annular groove is also provided at the edge of the top opening of the shell. The depth of the annular groove is greater than or equal to the thickness of the boss, and the bottom width is also greater than the width of the boss. When the entire camera module is assembled, the boss falls into the annular groove, which has a certain pre-positioning effect, and then it is connected and fixed by gluing or welding.

2. A Sensor-Shift camera module according to claim 1, characterized in that: The elastic connection mechanism also includes a connector with one end fixed in the sensor assembly, and the connector has a conductive end electrically connected to the FPC soft board provided in the housing; The FPC soft board has an end portion connected to an external circuit; The current entering from the FPC soft board enters the AF module through the connecting piece, the suspension wire and the first reed in sequence.

3. A Sensor-Shift camera module according to claim 2, characterized in that: The sensor assembly comprises a base and an image sensor arranged on the base, and a sensor protection cover is buckled on the image sensor; the connecting piece is arranged on the base.

4. The Sensor-Shift camera module according to claim 3, characterized in that: The base is an injection molded part, the connecting part is fixed in the base, the sensor is fixed in the middle of the upper surface of the base, and a metal plate for supporting is provided on the lower surface of the base.

5. A Sensor-Shift camera module according to any one of claims 1 to 4, characterized in that: The first spring sheet is a ring-shaped member with a plurality of corners and has elastic walls at the corners. The elastic wall has ends connected to the suspension wires.

6. A Sensor-Shift camera module according to claim 3 or 4, characterized in that: The OIS module includes a first magnet arranged at the bottom of the shell and a first coil arranged at the bottom of the base. The lower surface of the base has an annular groove, a PCB board connected to an external circuit is arranged in the annular groove, and the first coil is arranged on the PCB board.

7. A Sensor-Shift camera module according to claim 3 or 4, characterized in that: The shell also has an FPC cable for connecting external circuits and sensor components. The FPC cable has a fitting portion that fits the outer periphery of the image sensor on the upper surface of the base, and a surrounding portion that is bent at 90 degrees to the fitting portion. The surrounding portion is connected to the fitting portion through multiple bending portions.

8. The Sensor-Shift camera module according to claim 1, characterized in that: The AF module also has an FPC belt connected to an external circuit, and the FPC belt is connected to a Hall sensor provided in the AF module.

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